CN114131844A - Drawer rotary core-pulling mold - Google Patents

Abstract

The utility model relates to a rotatory loose core mould of drawer, including cover half seat and movable mould seat, set up the bottom chamber that forms the drawer bottom in the movable mould seat, be equipped with the top mould on the cover half seat, it is provided with the die clamper that is located the drawer both sides to slide on the top mould, be located the centre form between the die clamper and stretch into the drawer, be located drawer one side and be used for forming the side form of drawer right angle lateral wall, be equipped with the drive assembly one that the drive die clamper slided away the drawer on the movable mould seat, be equipped with the drive assembly two that the drive centre form will take out the drawer top and leave the top mould on the cover half seat, be equipped with the drive assembly three that the drive side form slided away the drawer on the top mould, be provided with the rotatory subassembly of loosing core of taking out the handle on the side form, rotatory subassembly is including rotating connection in the side mould, set up the drive assembly four that the rotatory mould of taking out from the arc intracavity on the side form. This application is through drawing of patterns in proper order all around with the drawer to drive rotatory mould and rotate out from the arc chamber of handle, the damage that the handle received when reducing the drawing of patterns, thereby have the advantage that improves refrigerator drawer drawing of patterns quality.

Description

Drawer rotary core-pulling mold

Technical Field

The application relates to the technical field of plastic mold production, in particular to a drawer rotating core-pulling mold.

Background

At present, in the process of manufacturing refrigerator accessories, a common injection molding mode is adopted for refrigerator drawers, molten plastic is injected into a mold, relevant operations are carried out, extrusion forming is carried out, and molded drawers are taken out by a demolding mechanism after cooling.

Referring to the figure, the refrigerator drawer includesbox 1, set up in thehandle 11 ofbox 1 one side, handle 11forms arc chamber 12 towardsbox 1 outer bending andbox 1 lateral wall,arc chamber 12 is inside crooked towardsbox 1,box 1 keeps away from the lateral wall of 11 one sides of handle towards 11 direction slopes,arc chamber 12 supplies the hand to stretch intoback pulling handle 11 anddrive box 1 and slide,box 1 is located and sets up theintercommunication groove 13 that extends along vertical direction on the lateral wall at 11 both sides of handle,intercommunication groove 13 extends to in thehandle 11.

The inventor thinks that: the existence of arc chamber makes traditional slider structure drawing of patterns comparatively difficult, leads to the drawing of patterns to fail easily and causes the damage to the shaping handle to lead to refrigerator drawer drawing of patterns quality relatively poor.

Disclosure of Invention

In order to improve the drawing of patterns quality of refrigerator drawer, the purpose of this application is to provide a rotatory loose core mould of drawer.

The application provides a rotatory loose core mould of drawer adopts following technical scheme:

a drawer rotary core-pulling die comprises a fixed die base and a movable die base, wherein a bottom cavity forming the bottom of a drawer is formed in the movable die base, the fixed die base is provided with a top die, the top die is provided with clamping dies positioned at two sides of the drawer in a sliding way, an inner die positioned between the clamping dies and extending into the drawer, and a side die positioned at one side of the drawer and used for forming a right-angled side wall of the drawer, the movable die holder is provided with a first driving component for driving the clamping die to slide away from the drawer, the fixed die holder is provided with a second driving component for driving the inner die to push the drawer away from the top die, the top die is provided with a driving assembly III for driving the side die to slide away from the drawer, the side die is provided with a rotary core pulling assembly for pulling away the handle, the rotary core pulling assembly comprises a rotary die which is rotatably connected in the side die and a driving assembly IV which is arranged on the side die and drives the rotary die to rotate out of the arc cavity.

By adopting the technical scheme, when the drawer is formed by injection molding, the fixed die base and the movable die base are folded, and then the plastic in the molten state is input from the driven die base, so that the plastic in the molten state is filled in the bottom cavity and wraps the inner die, and then is contacted with the clamping die and the side film. And when the plastic is cooled to form the drawer, the movable die holder is removed from the fixed die holder, so that the movable die holder and the fixed die holder are away from each other. Then in the process of keeping away from at the movable mould seat, fashioned drawer breaks away from the bottom chamber to start drive assembly one and drive the clamp mould and keep away from the drawer, in order to expose drawer both sides, drive assembly four starts simultaneously, and drives the rotary die and rotate, makes the rotary die follow the arc chamber and changes out, in order to break away from the handle with the rotary die. And then the driving assembly III is started to completely separate the side mold from one side of the drawer close to the handle, so that the whole drawer is sleeved on the inner mold. And finally, the second driving assembly is started to drive the inner die to lift the drawer away from the top die, so that the formed drawer can be taken down from the top die conveniently. Consequently through setting up die holder, centre form, side form, rotary die for the drawer is demolded all around in proper order, and drives rotary die and changes out from the arc chamber of handle, makes the arc chamber of handle and rotary die's rotation form the slip butt, reduces the damage that the rotary die caused the handle when breaking away from the handle, thereby improves refrigerator drawer's drawing of patterns quality.

Optionally, the first driving assembly comprises a first driving column arranged on the movable mold base and a first sliding block arranged on the top mold in a sliding manner, the first sliding block is fixedly connected to the clamping mold, the first driving column penetrates through the first sliding block in an inclined manner and slides in the first sliding block, and one end of the first driving column, which penetrates through the first sliding block, slides in the top mold.

By adopting the technical scheme, when the movable die holder is separated from the fixed die holder, the movable die holder drives the driving column to move towards the direction away from the fixed die holder, so that the driving column pushes the movable sliding block to slide towards the direction away from the drawer, and then the clamping die is driven to be separated from the side walls of the drawer at two sides of the handle, and the bottom of the drawer is separated from the side walls at two sides of the handle to be demoulded. Therefore, the first driving column and the first sliding block are arranged, the first driving column is obliquely slid in the first sliding block, the first driving column can support the first sliding block to drive the clamping die to be separated from the drawer, and therefore the side walls of the drawer, which are positioned on two sides of the handle, can be conveniently demoulded.

Optionally, the centre form including slide in oblique mould and straight mould on the top mould, drive assembly two including slide set up in drive in the top mould oblique mould gliding ejector pin one, slide set up in drive in the top mould straight mould gliding ejector pin two, the one end that oblique mould and straight mould were kept away from to ejector pin one and ejector pin two is equipped with the drive plate, the external cylinder of drive plate slide set up in the die holder, oblique mould butt in one side of drawer box slope, straight mould butt is close to one side of handle in the drawer box, be equipped with the concave part on the straight mould, the concave part supplies the crooked one side embedding that forms the arc chamber of handle.

By adopting the technical scheme, when the movable die base is separated from the fixed die base, the clamping die slides away from the drawer under the pulling of the first driving column and the first sliding block, then the fourth driving assembly is started to separate the rotary die from the arc cavity, and then the third driving assembly is started to separate the driving side die from one side of the drawer. And finally, the external cylinder drives the driving plate to slide towards the direction far away from the fixed die base, so that the first ejector rod and the second ejector rod slide out of the top die together, the drawer sleeved on the inclined die and the straight die is separated from the top die, and the separation of the drawer and the top die is realized. Therefore, the first ejector rod, the second ejector rod, the inclined die and the straight die are arranged, the external cylinder is used for driving the driving plate to slide, the first ejector rod and the second ejector rod together support the inclined die and the straight die to slide away from the top die, and accordingly the formed drawer can be conveniently separated from the top die.

Optionally, one end of the second ejector rod, which is located in the first ejector rod, is inclined towards the first ejector rod, one end of the second ejector rod, which is far away from the straight die, is hinged to the drive board, and when the drive board drives the first ejector rod and the second ejector rod to together abut against the drawer, the first ejector rod and the second ejector rod are staggered to enable the inclined die to be separated from the formed drawer firstly.

Through adopting above-mentioned technical scheme, when the drive plate drove ejector pin one and ejector pin two and push out from the top mould, because the slope of ejector pin two sets up in the top mould for when ejector pin two and ejector pin one follow the top mould roll-off simultaneously, ejector pin two supports the straight mode pivoted and can produce the dislocation with the oblique mould that ejector pin one supported, make the drawer by push away from the top mould after, the straight mode can push away from the oblique mould with the drawer earlier, so that one side of oblique mould and drawer slope breaks away from earlier. Then, one side of the inclined side wall of the drawer inclines towards the handle, so that the inner wall of the drawer close to the handle is separated from the straight die, the concave part on the straight die is separated from one side of the arc cavity formed by bending the handle, and the drawer is separated from the straight die after being separated from the inclined die. Consequently set up ejector pin two through setting up the articulated for the ejector pin two of slope receives the drive back of drive plate with ejector pin one, and ejector pin two rotates to parallels with ejector pin one between the support of drive plate, so that straight mould and oblique mould dislocation, the straight mould stretches out the lateral wall of oblique mould, makes the oblique mould break away from the straight mould again behind the drawer, thereby is convenient for take off the drawer from oblique mould and straight mould in proper order.

Optionally, the driving assembly three includes a driving cylinder fixedly connected to the top die and a fixing column fixedly connected to a piston rod of the driving cylinder, the diameter of the fixing column is larger than that of the piston rod of the driving cylinder, and a clamping groove for clamping the fixing column and a through groove for clamping the piston rod of the driving cylinder are formed in the side die.

Through adopting above-mentioned technical scheme, when breaking away from side form and drawer mutually, drive actuating cylinder piston rod shrink, drive the fixed column and slide towards the direction of keeping away from the side form for the side form slides under the fixed column with top mould looks butt, so that the side form breaks away from the lateral wall that the drawer is close to the handle, thereby is convenient for break away from side form and drawer mutually.

Optionally, a sliding gap for sliding the side mold is reserved between the side mold and the top mold, a limiting block sliding into the sliding gap is arranged on the movable mold base, and the limiting block is used for limiting the side mold to slide away from a forming cavity forming the drawer.

By adopting the technical scheme, when the movable die holder is separated from the top die holder, the movable die holder is far away from the driving limiting block to slide away from the sliding gap so as to remove the limitation on the driving column, so that the driving cylinder piston rod is contracted to drive the driving column to be clamped with the side die to be separated from the drawer. And the limiting block limits the sliding of the driving column during injection molding so as to enable the side die to be tightly propped against the drawer, thereby improving the stability of the side wall of the drawer formed by the side die.

Optionally, the driving assembly four includes set up in driving post two, the slip on the movable die base set up in slider two in the side mould, the both ends fixedly connected with rotation axis of handle is kept away from to the rotary die, set up the spout that supplies the rotation axis to rotate and slide in slider two, two slopes of driving post run through and slide in slider two, the driving post is two-purpose and is used for driving the slider two and slides and drive the rotary die after the drawer and rotate from the arc chamber.

Through adopting above-mentioned technical scheme, when carrying out the drawing of patterns with the handle, the removal of two follow-up die holders of drive post and two direction that keep away from the drawer of butt slider slide for the rotation axis and the spout internal slipping that drive the rotary die after the slider slides and rotate. So that one end of the rotary die, which is far away from the handle, rotates towards the direction far away from the drawer until the rotary die is rotated out of the arc cavity and separated from the handle, and the handle of the drawer is demoulded. Therefore, through the arrangement of the second sliding block and the sliding groove, the second driving column is used for pushing the second sliding block to slide towards the direction far away from the drawer, the rotating shaft rotates and slides in the sliding groove, and then the end, far away from the handle, of the rotating die rotates out of the arc cavity around the rotating point of the side die after being pulled, so that the arc cavity is completely separated from the handle.

Optionally, one side of the rotary die back to the drawer is provided with a position measuring rod, the position measuring rod penetrates through the top die, and a rotating cavity for the position measuring rod to rotate along with the rotary die is formed in the top die.

Through adopting above-mentioned technical scheme, when drawing of patterns with the handle, two drive rotation axes of slider slide towards the direction of keeping away from the drawer for the rotation axis is in the spout internal rotation, and then drives the one end that the rotary die is close to the handle and rotates round the turning point with the side form. And in the process that the rotary die rotates out of the arc cavity, the position measuring rod rotates in the rotating cavity along with the rotation of the rotary die until the position measuring rod rotates to the other end of the rotating cavity, and then the rotary die is indicated to rotate in place and is separated from the arc cavity, so that an operator is prompted to perform next operation, and the accuracy of demoulding the handle by the rotary die is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

by arranging the clamping die, the inner die, the side die and the rotary die, the periphery of the drawer is sequentially demoulded, and the rotary die is driven to rotate out of the arc cavity of the handle, so that the arc cavity of the handle and the rotary die rotate to form sliding butt, the damage to the handle when the rotary die is separated from the handle is reduced, and the demoulding quality of the drawer of the refrigerator is improved;

the first driving column and the first sliding block are arranged, and the first driving column is obliquely slid in the first sliding block, so that the first driving column can push the first sliding block to drive the clamping die to be separated from the drawer, and the side walls of the drawer, which are positioned at two sides of the handle, can be conveniently demoulded;

the first ejector rod, the second ejector rod, the inclined die and the straight die are arranged, and the external cylinder drives the driving plate to slide, so that the first ejector rod and the second ejector rod together support the inclined die and the straight die to slide away from the top die, and a formed drawer can be conveniently separated from the top die;

the second ejector rod is hinged to the first ejector rod, so that after the second inclined ejector rod and the first ejector rod are slid by the driving plate, the second ejector rod rotates to be parallel to the first ejector rod under the support of the driving plate, the straight die and the inclined die are staggered, the straight die extends out of the side wall of the inclined die, the straight die is separated after the inclined die is separated from the drawer, and the drawer is conveniently taken down from the inclined die and the straight die in sequence;

through setting up slider two and spout, utilize drive post two to support to move slider two and slide towards the direction of keeping away from the drawer for the rotation axis is in the spout internal rotation and slide, and then makes the one end that the handle was kept away from to the rotary die receive the rotation point round with the side form after pulling and roll out the arc chamber, thereby the complete arc chamber that breaks away from the handle.

Drawings

Fig. 1 is a schematic structural diagram for showing a drawer according to the present application.

Fig. 2 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 3 is an exploded view of an embodiment of the present application for showing a bottom chamber.

Fig. 4 is a schematic structural diagram for showing the fixed die holder according to the embodiment of the present application.

FIG. 5 is a schematic cross-sectional view illustrating a position measuring rod according to an embodiment of the present disclosure.

Fig. 6 is a schematic cross-sectional view for showing a rotating shaft according to an embodiment of the present application.

Fig. 7 is a schematic cross-sectional view for showing a second jack rod according to the embodiment of the present application.

Description of reference numerals: 1. a box body; 11. a handle; 12. an arc cavity; 13. a communicating groove; 2. a movable die holder; 21. a glue injection port; 22. a bottom cavity; 3. fixing a die holder; 31. a hoisting ring; 32. carrying out top die; 321. clamping a mold; 322. an inner mold; 323. side mould; 324. a rotation chamber; 325. a clamping groove; 326. a through groove; 33. a connecting rod; 34. a sliding gap; 35. a drive plate; 4. rotating the core pulling assembly; 41. rotating the mold; 411. a rotating shaft; 412. a position measuring rod; 42. driving assembly four; 421. a second driving column; 422. a second sliding block; 423. a chute; 5. a first driving component; 51. a first driving column; 52. a first sliding block; 6. a second driving component; 61. inclining a mould; 62. a straight die; 63. a first ejector rod; 64. a second ejector rod; 7. a third driving component; 71. a driving cylinder; 72. fixing a column; 73. and a limiting block.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Referring to fig. 1, the refrigerator drawer includesbox 1, set up in thehandle 11 ofbox 1 one side, handle 11forms arc chamber 12 towardsbox 1 outer bending andbox 1 lateral wall,arc chamber 12 is inside crooked towardsbox 1,box 1 keeps away from the lateral wall of 11 one sides of handle towards 11 direction slopes,arc chamber 12 supplies the hand to stretch into back pullinghandle 11 and drivebox 1 and slide,box 1 is located and sets up theintercommunication groove 13 that extends along vertical direction on the lateral wall at 11 both sides of handle,intercommunication groove 13 extends to in thehandle 11.

The embodiment of the application discloses a drawer rotating core-pulling mold.

Referring to fig. 1 and 2, the mold comprises a fixedmold base 3 and amovable mold base 2, the fixedmold base 3 is used for molding the position of an upper end handle 11 of thebox body 1, and themovable mold base 2 is used for molding the lower end of thebox body 1. One side of themovable die holder 2, which faces away from the top die 32, is provided with aglue injection port 21 for injecting molten plastic.

Referring to fig. 3, abottom cavity 22 forming the bottom of thebox body 1 is formed in themovable die holder 2, atop die 32 is fixedly installed on the fixeddie holder 3, a liftingring 31 for lifting is fixedly connected to the upper end of the top die 32, and the fixeddie holder 3 and the top die 32 are fixed through a plurality of connectingrods 33.

Referring to fig. 4 and 5, thetop mold 32 is slidably mounted with clampingmolds 321 located in the communicatinggrooves 13 at both sides of thebox body 1, an inner mold 322 located between the clampingmolds 321 and extending into thebox body 1, and aside mold 323 located at one side of thebox body 1 for forming a right-angled side wall of thebox body 1. The inner die 322 includes a slant die 61 and a straight die 62 sliding on the top die 32, the surfaces of the slant die 61 and the straight die 62 abutting against each other are inclined surfaces, and one end of the inclined surface close to the top die 32 is inclined toward the side die 323.

Referring to fig. 4 and 5, the clampingmold 321 slides on two sides of thebox body 1 along a vertical direction, a sliding direction of the inner mold 322 is the same as a sliding direction of themovable mold base 2, theside mold 323 slides along a direction perpendicular to the sliding direction of the inner mold 322, and theside mold 323 is provided with the rotarycore pulling assembly 4 for pulling out thehandle 11, so as to demold thehandle 11 and protect thearc cavity 12 from being damaged.

Referring to fig. 4 and 5, a first driving assembly 5 for driving the clampingmold 321 to slide away from thebox body 1 is installed on themovable mold base 2, asecond driving assembly 6 for driving the inner mold 322 to push thebox body 1 away from thetop mold 32 is installed on the fixedmold base 3, and a third driving assembly 7 for driving theside mold 323 to slide away from thebox body 1 is installed on thetop mold 32. The rotarycore pulling assembly 4 comprises arotary die 41 rotatably connected in the side die 323, and a driving assembly four 42 mounted on the side die 323 and used for driving the rotary die 41 to rotate out of thearc cavity 12. The first driving assembly 5 is started after the follow-updie holder 2 slides away from the fixeddie holder 3, meanwhile, the fourth drivingassembly 42 is started after the follow-updie holder 2 slides away from the fixeddie holder 3, so that the clamping die 321 is separated from the two sides of thebox body 1 after themovable die holder 2 slides away from the fixeddie holder 3, therotating die 41 rotates to be separated from thearc cavity 12 and then is separated from thehandle 11, then the third driving assembly 7 is started again to separate the side die 323 from one side of thebox body 1 close to thehandle 11, and finally thesecond driving assembly 6 drives the inner die 322 to slide to push thebox body 1 away from the top die 32.

Referring to fig. 3 and 4, the first driving assembly 5 includes a first driving column 51 fixedly connected to themovable die holder 2 in an inclined manner, a first sliding block 52 slidably connected to the top die 32, and the clamp die 321 is fixedly connected to a side of the first sliding block 52 away from the first driving column 51, and the two first driving columns 51 obliquely penetrate into the first sliding block 52 and are gradually enlarged toward a direction away from themovable die holder 2, so that the first driving columns 51 penetrating through the first sliding block 52 penetrate into the top die 32 and are inclined toward the outside of the top die 32. The first driving column 51 slides in the first sliding block 52 and the top die 32, so that after the first driving column 51 follows thedie holder 2 and is far away from the fixeddie holder 3, the inclined first driving column 51 pushes the first sliding block 52 to slide towards the outside of the top die 32, and further drives the clamping die 321 to slide away from the communicatinggroove 13, so that the limiting on thebox body 1 is released while the clamping die 321 is separated from thebox body 1, and the side die 323 and the inner die 322 are conveniently separated subsequently.

Referring to fig. 3 and 5, the driving assembly four 42 includes a driving column two 421 obliquely and fixedly connected to themovable die holder 2, and a sliding block two 422 slidably installed in the side die 323, and there are two driving columns two 421 and two sliding blocks two 422.

Referring to fig. 4 and 5, thesecond slider 422 slides in theside mold 323 in a direction perpendicular to the sliding direction of the first slider 52. Thesecond driving column 421 obliquely penetrates through the second slidingblock 422, one end of thesecond driving column 421 penetrating through the second slidingblock 422 inclines towards the direction outside the top die 32, and thesecond driving column 421 slides in the second slidingblock 422 and the top die 32 so as to abut against the second slidingblock 422 to slide towards the direction far away from thebox body 1 after thesecond driving column 421 slides away from the follow-updie holder 2.

Referring to fig. 6, the rotation shafts of the rotary die 41 and the side die 323 extend in a vertical direction, the rotation shafts of the rotary die 41 and the side die 323 are disposed near thehandle 11, and therotation shafts 411 are fixedly connected to both sides of the rotary die 41 away from the side die 323. A slidinggroove 423 for sliding and rotating therotating shaft 411 is formed in the second slidingblock 422, the slidinggroove 423 extends in the horizontal direction, so that after the second slidingblock 422 slides away from thebox body 1, therotating shaft 411 is driven to rotate in the slidinggroove 423 and then slide, the rotatingmold 41 is driven to rotate around the rotating shaft of theside mold 323 in the direction away from thehandle 11, the wholerotating mold 41 is separated from thehandle 11 after being separated from thearc cavity 12, and therefore damage to thearc cavity 12 is reduced after thehandle 11 is demolded.

Referring to fig. 5, aposition measuring rod 412 is fixedly connected to a side of the rotary die 41 away from the side wall of thebox body 1, theposition measuring rod 412 extends into the top die 32 and penetrates through the top die 32, and arotating cavity 324 for allowing theposition measuring rod 412 to rotate along with the rotary die 41 is formed in the top die 32. After the rotary die 41 is separated from thearc cavity 12, theposition measuring rod 412 rotates together with the rotary die 41, so that theposition measuring rod 412 rotates from the lower end to the upper end of therotary cavity 324 to prompt an operator to rotate the rotary die 41 in place.

Referring to fig. 4, the third driving assembly 7 includes a driving cylinder 71 fixedly connected to thetop mold 32, and a fixing column 72 fixedly connected to a piston rod of the cylinder, wherein the diameter of the fixing column 72 is larger than that of the piston rod of the driving cylinder 71, the piston rod of the driving cylinder 71 extends and retracts in the horizontal direction, and the driving cylinder 71 is located on a side of theside mold 323 facing away from thebox body 1.

Referring to fig. 3 and 4, a clampinggroove 325 for clamping the fixing column 72 and a throughgroove 326 for clamping the piston rod of the driving cylinder 71 are formed in theside mold 323, and the throughgroove 326 is communicated with the clampinggroove 325. Leave theslip clearance 34 that supplies to drive actuating cylinder 71 piston rod shrink betweenside form 323 and thetop mould 32 edge, thetight stopper 73 that has a limit in theslip clearance 34,stopper 73 fixed connection is onmovable die holder 2, whenmovable die holder 2 breaks away from fixeddie holder 3,stopper 73 breaks away fromslip clearance 34, make rotary die 41 break away fromarc chamber 12 after, drive actuating cylinder 71 just removes the restriction and makes the piston rod shrink, make fixed column 72 chucking injoint groove 325 through the shrink of drive actuating cylinder 71 piston rod, and driveside form 323 and slide towards the direction of keeping away frombox 1, so thatside form 323 breaks away from the lateral wall onbox 1 right angle side.

Referring to fig. 6 and 7, thesecond driving assembly 6 includes afirst ejector rod 63 sliding in thetop mold 32 to drive theinclined mold 61 to slide, and asecond ejector rod 64 sliding in thetop mold 32 to drive the straight mold 62 to slide, theinclined mold 61 is located above the straight mold 62, theinclined mold 61 abuts against an inclined side wall in thebox body 1, the straight mold 62 abuts against a right-angle side in thebox body 1, and a concave portion is formed in the straight mold 62 and is used for embedding one side of thehandle 11 bent to form thearc cavity 12.

Referring to fig. 3 and 7, a drivingplate 35 is slidably mounted on the fixedmold base 3, and the drivingplate 35 is driven by an external cylinder to slide between thetop mold 32 and thetop mold 32 along the sliding direction of themovable mold base 2. Thefirst push rod 63 extends along the horizontal direction and then is fixedly connected to the drivingplate 35, and one end, away from the straight die 62, of thesecond push rod 64 extends obliquely downwards and is hinged to the drivingplate 35, so that thesecond push rod 64 is obliquely connected to the straight die 62. When thefirst ejector rod 63 and thesecond ejector rod 64 are driven by thedrive plate 35 to slide towards the inside of the top die 32, due to the fact that thesecond ejector rod 64 is obliquely pushed, thesecond ejector rod 64 gradually rotates to be horizontal under the drive of thedrive plate 35, theinclined die 61 and the straight die 62 are dislocated, the straight die 62 pushes thebox body 1 to separate thebox body 1 from theinclined die 61, the bottom wall and the inclined side wall in thebox body 1 are separated from theinclined die 61, thebox body 1 is conveniently moved towards the straight die 62, the remaining bottom wall and the right-angled side wall of thebox body 1 are separated from the straight die 62, further, the concave portions of thearc cavity 12 and the straight die 62 of thehandle 11 are conveniently separated, the bent portion of thearc cavity 12 at thehandle 11 towards the inside of thebox body 1 is completely separated, and therefore damage to thehandle 11 is reduced.

The implementation principle of the rotary core-pulling mold for thebox body 1 in the embodiment of the application is as follows: when the injection-molded and cooling-moldedbox body 1 is disassembled, themovable mold base 2 and the fixedmold base 3 are separated from each other, themovable mold base 2 is separated, so that the first driving column 51 pushes the first sliding block 52 to drive themold clamp 321 to be separated from the communicatinggroove 13, thesecond driving column 421 pushes the second slidingblock 422 to drive therotary mold 41 to rotate out of thearc cavity 12 and separate from thehandle 11, thelimit block 73 slides from the slidinggap 34, and theposition measuring rod 412 rotates from one end of therotating cavity 324 to the other end. Then, a piston rod of the air cylinder 71 is driven to contract, and the fixing column 72 is driven to be clamped in theside mold 323, so that theside mold 323 is separated from the side wall of thebox body 1 close to thehandle 11. And finally, the drivingplate 35 drives thefirst ejector rod 63 and thesecond ejector rod 64 to slide into the top die 32 under the driving of the external cylinder, so that thesecond ejector rod 64 gradually rotates to be horizontal. And then make straight die 62 be located one section of outstanding below theinclined die 61, leavebox 1 and inclined die 61 earlier and then with straight die 62 separation to thearc chamber 12 that will bend in thebox 1 breaks away from, reduces the damage that receives handle 11 during the drawing of patterns, thereby improves the drawing of patterns quality of refrigerator drawer.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a rotatory loose core mould of drawer which characterized in that: the drawer-pulling mechanism comprises a fixed die base (3) and a movable die base (2), wherein a bottom cavity (22) forming the bottom of a drawer is formed in the movable die base (2), a top die (32) is arranged on the fixed die base (3), a clamping die (321) located on two sides of the drawer, an inner die (322) located between the clamping dies (321) and extending into the drawer, and a side die (323) located on one side of the drawer and used for forming a right-angle side wall of the drawer are arranged on the top die (32) in a sliding manner, a first driving assembly (5) for driving the clamping die (321) to slide away from the drawer is arranged on the movable die base (2), a second driving assembly (6) for driving the inner die (322) to push the drawer away from the top die (32) is arranged on the fixed die base (3), a third driving assembly (7) for driving the side die (323) to slide away from the drawer is arranged on the side die (323), and a rotary core-pulling assembly (4) for pulling a handle (11) is arranged on the side die (323), the rotary core pulling assembly (4) comprises a rotary die (41) which is rotatably connected into the side die (323), and a driving assembly IV (42) which is arranged on the side die (323) and drives the rotary die (41) to rotate out of the arc cavity (12).

2. The drawer-turning core-pulling mold according to claim 1, wherein: the first driving assembly (5) comprises a first driving column (51) arranged on the movable die holder (2) and a first sliding block (52) arranged on the top die (32) in a sliding mode, the first sliding block (52) is fixedly connected to the clamping die (321), the first driving column (51) penetrates through the first sliding block (52) in an inclined mode and slides in the first sliding block (52), and one end, penetrating through the first sliding block (52), of the first driving column (51) slides in the top die (32).

3. The drawer-turning core-pulling mold according to claim 1, wherein: the inner die (322) comprises a slant die (61) and a straight die (62) which slide on the top die (32), the second driving component (6) comprises a first ejector rod (63) which is arranged in the top die (32) in a sliding manner and drives the inclined die (61) to slide, a second ejector rod (64) which is arranged in the top die (32) in a sliding manner and drives the straight die (62) to slide, one ends of the first ejector rod (63) and the second ejector rod (64) far away from the inclined die (61) and the straight die (62) are provided with driving plates (35), the driving plate (35) is externally connected with an air cylinder and is arranged in the fixed die holder (3) in a sliding manner, the inclined die (61) is abutted against one inclined side of the drawer box body (1), the straight die (62) is abutted against one side, close to the handle (11), in the drawer box body (1), the straight die (62) is provided with a concave part, and the concave part is used for embedding one side of the arc cavity (12) formed by bending the handle (11).

4. The drawer-turning core-pulling mold as claimed in claim 3, wherein: one end of the second ejector rod (64) located in the top die (32) is obliquely arranged towards the first ejector rod (63), one end, far away from the straight die (62), of the second ejector rod (64) is hinged to the drive plate (35), and when the drive plate (35) drives the first ejector rod (63) and the second ejector rod (64) to together abut against the drawer, the first ejector rod (63) and the second ejector rod (64) are staggered to enable the inclined die (61) to be separated from the formed drawer firstly.

5. The drawer-turning core-pulling mold according to claim 1, wherein: drive assembly three (7) are including drive actuating cylinder (71), fixed column (72) of fixed connection on driving actuating cylinder (71) piston rod on fixed connection top mould (32), fixed column (72) diameter is greater than and drives actuating cylinder (71) piston rod, seted up the confession on side form (323) joint groove (325) that fixed column (72) card was gone into, the logical groove (326) that confession drive actuating cylinder (71) piston rod was gone into.

6. The drawer-turning core-pulling mold as claimed in claim 5, wherein: a sliding gap (34) for the side die (323) to slide is reserved between the side die (323) and the top die (32), a limiting block (73) which slides into the sliding gap (34) is arranged on the movable die base (2), and the limiting block (73) is used for limiting the side die (323) to slide away to form a forming cavity of the drawer.

7. The drawer-turning core-pulling mold according to claim 1, wherein: drive assembly four (42) including set up in drive post two (421), the slip on movable die base (2) set up in slider two (422) in side form (323), handle (11) were kept away from in rotatory mould (41) both ends fixedly connected with rotation axis (411), set up spout (423) that supply rotation axis (411) to rotate and slide in slider two (422), drive post two (421) slope is run through and is slided in slider two (422), drive post two (421) are used for driving slider two (422) and slide and drive rotatory mould (41) and rotate away from arc chamber (12) behind the drawer.

8. The drawer-turning core-pulling mold according to claim 7, wherein: one side of the rotary die (41) back to the drawer is provided with a position measuring rod (412), the position measuring rod (412) penetrates through the top die (32), and a rotating cavity (324) for the position measuring rod (412) to rotate along with the rotary die (41) is formed in the top die (32).

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