CN211591064U - Double-color mold for single-color injection molding machine - Google Patents

Abstract

The utility model discloses a double-color mould for a single-color injection molding machine, which comprises a first injection mould, a second injection mould and an insert; the injection mold core, the injection lower mold core and the injection side mold cores enclose an injection cavity for accommodating the insert, and an injection molding piece is molded between the injection cavity and the insert; the insert comprises an insert part and a plugging part formed by protruding from the lower end of the insert part, and the lower injection mold core is provided with a first plugging hole matched with the plugging part; the two-injection upper mold core, the two-injection lower mold core and the two-injection side mold cores enclose a two-injection cavity for containing the mold insert, a two-injection molding piece is formed between the mold insert and the two-injection cavity, the two-injection lower mold core is provided with a second plug hole matched with the plug part, and the demolding assembly is used for pushing the top surface of the two-injection lower mold core to move upwards from the plug part to the mold insert part so as to eject the two-injection molding piece. The utility model provides a double-colored mould for monochromatic injection molding machine makes things convenient for monochromatic injection molding machine production bijection injection molding.

Description

Double-color mold for single-color injection molding machine

Technical Field

The utility model belongs to the technical field of the mould technique and specifically relates to a double-colored mould for monochromatic injection molding machine is related to.

Background

The double-color injection is a process method for manufacturing finished products with different colors or different appearances and different hardnesses from two plastics with different colors or different types through an injection molding process. At present, double-color injection molding is generally completed through a double-color mold injection molding machine, wherein the double-color mold generally comprises two pairs of molds, one half of the double-color mold injection molding machine is arranged on a fixed mold plate of the double-color mold injection molding machine, and the other half of the double-color mold injection molding machine is arranged on a movable mold rotary plate. And after the first material is completely injected, opening the mold, driving the primary movable mold to rotate 180 degrees with the primary product, not ejecting the movable mold, closing the mold, injecting the second material, opening the mold after cooling, ejecting the product on the side of the movable mold, and finishing double-color injection molding. However, the cost of the double-color injection molding machine far exceeds that of the single-color injection molding machine, and for the products in small and medium batches which need secondary injection molding, if the double-color injection molding machine is additionally purchased, the problem of overhigh cost is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double-colored mould for monochromatic injection molding machine makes things convenient for monochromatic injection molding machine production bijection injection molding.

The utility model discloses a technical scheme that double-colored mould that is used for monochromatic injection molding machine adopted is:

a double-color mould for a single-color injection molding machine comprises a first-shot mould, a second-shot mould and an insert; the injection mold comprises an injection upper mold core, an injection lower mold core and a plurality of injection side mold cores, wherein the injection upper mold core, the injection lower mold core and the plurality of injection side mold cores enclose an injection cavity for accommodating the mold insert, and an injection molding piece is molded between the injection cavity and the mold insert; the insert comprises an insert part and a plugging part formed by protruding from the lower end of the insert part, the lower injection mold core is provided with a first plugging hole matched with the plugging part, and the insert also comprises a clamping part detachably connected with an ejector rod of the injection molding machine; the two-shot mold comprises a two-shot upper mold core, a two-shot lower mold core and a plurality of two-shot side mold cores, wherein the two-shot upper mold core, the two-shot lower mold core and the plurality of two-shot side mold cores enclose a two-shot containing cavity for containing an insert, a two-shot injection molding piece is formed between the insert and the two-shot containing cavity, the two-shot lower mold core is provided with a second plug hole matched with the plug part, and the two-shot lower mold core further comprises a demolding component, wherein the demolding component is used for pushing the top surface of the two-shot lower mold core to move upwards from the plug part to the insert part so as to eject the two-shot.

Preferably, the inserting portion comprises an inserting upper portion and an inserting lower portion, the periphery of the inserting upper portion is defined by an arc surface and at least one positioning plane, and the first inserting hole and the second inserting hole are matched with the inserting upper portion.

Preferably, the bottom surface of the injection lower mold core is abutted against an injection support plate for supporting the insertion part, and the injection support plate is provided with a first accommodating hole matched with the lower part of the insertion part; the lower end face of the two-shot lower die core is abutted against a two-shot supporting plate for supporting the inserting part, and a second containing hole matched with the lower part of the inserting part is formed in the two-shot supporting plate.

As the preferred scheme, joint portion is including seting up in the recess of grafting portion bottom surface, seting up in the bar hole of recess bottom surface to and be located the bar hole and keep away from the inside callipers chamber of recess one end, the top of ejector pin forms the fixture block with bar hole assorted, the fixture block stretches into the recess and stretches into the inside callipers chamber from the bar hole, and the joint is accomplished to rotatory preset angle.

Preferably, the demolding assembly comprises a thrust piece, a plurality of push rods, a push plate and a push rod fixing plate, one end of each push rod is fixed on the two-injection lower mold core, the other end of each push rod is limited between the push rod fixing plate and the push plate, and the output end of the thrust piece is arranged on the push plate.

As a preferred scheme, the injection side mold core comprises a sliding block, and an inclined groove is formed in the sliding block; the injection mold core is fixed on an injection mold, the injection mold is fixed with an inclined top, and the inclined top comprises a vertical section and an inclined section extending into the inclined groove.

The utility model discloses a double-colored mould for monochromatic injection molding machine's beneficial effect is: placing the insert into an injection mold, wherein a splicing part of the insert extends downwards into a first splicing hole formed in an injection lower mold core, a clamping part of the insert is clamped on a top rod of a single-color injection molding machine, injection molding is carried out, an injection molding piece is formed between an injection cavity and the insert, an injection upper mold core is separated from an injection lower mold core under the action of the single-color injection molding machine after injection molding, meanwhile, an injection side mold core is also separated from an injection molding piece, the insert and the injection molding piece are separated from the injection lower mold core under the pushing of the top rod of the injection molding machine, and the insert and the injection molding piece are taken down from the top rod after separation;

placing the mold insert and the injection molding piece into a two-injection mold, enabling a splicing part of the mold insert to extend downwards into a second splicing hole formed in a two-injection lower mold core, enabling a clamping part of the mold insert to be clamped on a mandril of another single-color injection molding machine, carrying out secondary injection molding, enabling the two-injection molding piece to be molded between the mold insert and a two-injection cavity, enabling the two-injection upper mold core to be separated from the two-injection lower mold core under the action of the single-color injection molding machine after injection molding, enabling the mold insert on the two-injection side to be separated from the two-injection molding piece, enabling the mold insert and the two-injection molding piece to be separated from the two-injection lower mold core under the pushing of the mandril of the other injection molding machine after separation, respectively taking down the two-injection molding piece and the mold insert, returning the mold insert to the one-injection mold, and sequentially circulating. The utility model discloses a double-colored mould can be applicable to monochromatic injection molding machine production bijection injection molding, and need not to purchase costly double-colored injection molding machine, very big reduction manufacturing cost.

Drawings

Fig. 1 is a schematic structural view of a one-shot mold of a two-color mold for a single-color injection molding machine of the present invention.

Fig. 2 is a front view of an injection mold of the dual-color mold for a single-color injection molding machine of the present invention.

3 fig. 33 3 is 3 a 3 sectional 3 view 3 of 3 a 3 one 3- 3 shot 3 mold 3 of 3 the 3 two 3- 3 color 3 mold 3 for 3 the 3 single 3- 3 color 3 injection 3 molding 3 machine 3 of 3 the 3 present 3 invention 3. 3

Fig. 4 is a side view of an injection mold of the dual color mold for a single color injection molding machine of the present invention.

Fig. 5 is a B-B cross-sectional view of an injection mold of the dual color mold for a single color injection molding machine of the present invention.

Fig. 6 is a schematic structural view of a two-shot mold of a two-color mold for a single-color injection molding machine of the present invention.

Fig. 7 is a front view of a two-shot mold of a two-color mold for a single-color injection molding machine of the present invention.

Figure 8 is a C-C cross-sectional view of a two-shot mold of the dual-color mold for a single color injection molding machine of the present invention.

Fig. 9 is a side view of a two-shot mold of a two-color mold for a single color injection molding machine of the present invention.

Figure 10 is a D-D cross-sectional view of a two-shot mold of the dual color mold for a single color injection molding machine of the present invention.

Fig. 11 is a front view of a two-shot mold of a two-color mold for a single-color injection molding machine of the present invention.

Figure 12 is an E-E cross-sectional view of a two-shot mold of the dual color mold for a single color injection molding machine of the present invention.

Fig. 13 is a schematic structural view of an insert of a two-color mold for a single-color injection molding machine according to the present invention.

Figure 14 is a cross-sectional view of an insert for a two-color mold of a single color injection molding machine, in accordance with the present invention.

Detailed Description

The invention will be further elucidated and described with reference to the following embodiments and drawings in which:

referring to fig. 1, 6 and 13, a two-shot mold for a single-shot injection molding machine includes a one-shot mold 10, a two-shot mold 20 and aninsert 30.

Referring to fig. 2-5, aninjection mold 10 includes an upperinjection mold core 11, a lowerinjection mold core 12, and a plurality ofinjection mold cores 13. An injection cavity for accommodating theinsert 30 is defined by an injectionupper mold core 11, an injectionlower mold core 12 and a plurality of injectionside mold cores 13, and an injection molding piece is molded between the injection cavity and theinsert 30.

Referring to fig. 2, 3, 13 and 14, theinsert 30 includes aninsert portion 31 and aplugging portion 32 formed by protruding from a lower end of theinsert portion 31, and theinjection mold core 12 is provided with a first plugging hole matching with theplugging portion 32. Theinsert 30 further includes aclamping portion 33 for removable connection with the injectionmolding machine ram 40.

Referring to fig. 6-10, the two-shot mold 20 includes a two-shotupper mold core 21, a two-shotlower mold core 22, and a plurality of two-shotside mold cores 23. The two-shotupper mold core 21, the two-shotlower mold core 22 and the two-shotside mold cores 23 enclose a two-shot cavity for accommodating theinsert 30, and the two-shot injection molding piece is molded between theinsert 30 and the two-shot cavity. The second injectionlower mold core 22 is provided with a second inserting hole matched with theinserting part 32. The two-shot mold 20 further includes astripper assembly 24, thestripper assembly 24 being configured to push the top surface of the two-shot mold core 22 from theinsert portion 32 to theinsert portion 31 to eject the two-shot injection molded part.

Referring to fig. 2, 3, 13 and 14, theinsertion portion 32 includes an insertionupper portion 321 and an insertionlower portion 322, a periphery of the insertionupper portion 321 is defined by anarc surface 3211 and at least onepositioning plane 3212, and the first insertion hole and the second insertion hole are both matched with the insertionupper portion 321. The shape of the insertingupper portion 321 is slightly larger than the size of the lower end surface of theinsert portion 31 and slightly smaller than the size of the lower end surface of the two-shot injection molding piece, so that the two-shot injection molding piece is not obstructed by theinsert portion 31 in the process of pushing out the two-shot injection molding piece from the two-shotlower mold core 22. When theinsert 30 is mounted, the positioning of theinsert 30 is completed by making the flat surface on the first insertion hole or the second insertion hole face the positioning flat surface.

Referring to fig. 2-5, a shooting supportingplate 121 for supporting theinserting portion 32 is abutted against the bottom surface of the shootinglower mold core 12, and a first accommodating hole matched with the insertinglower portion 322 is formed in theshooting supporting plate 121. The lower end surface of the second-injectionlower mold core 22 is abutted against a second-injection support plate 221 for supporting theinserting part 32, and a second accommodating hole matched with the insertinglower part 322 is formed in the second-injection support plate 221.

Referring to fig. 2, 3, 13 and 14, theclamping portion 33 includes agroove 333 formed in the bottom surface of theinsertion portion 32, a strip hole 331 formed in the bottom surface of thegroove 33, and aninner clamping cavity 332 located at an end of the strip hole 331 far from the bottom surface of theinsertion portion 32, a clamping block matched with the strip hole 331 is formed at the top end of theejector rod 40, the clamping block extends into thegroove 333 and extends into theinner clamping cavity 332 from the strip hole 331, and clamping is completed by rotating a preset angle. When theinsert 30 is installed, the strip-shaped hole 331 is aligned with the fixture of thelift pin 40, theinsert 30 is moved to make the fixture of thelift pin 40 extend into theinner clamping cavity 332, and then theinsert 30 is rotated by 90 ° to complete clamping. Theinsert 30 is removed by first counter-rotating theinsert 30 90 deg. and then removing it.

Referring to fig. 6, 11 and 12, thedemolding assembly 24 includes a pushingmember 241, a plurality of pushingrods 242, a pushingplate 243 and a pushingrod fixing plate 244, wherein one end of each of the plurality of pushingrods 242 is fixed to the two-shotlower mold core 22, the other end of each of the plurality of pushingrods 242 is limited between the pushingrod fixing plate 244 and the pushingplate 243, and an output end of the pushingmember 241 is disposed on the pushingplate 243. Thethrust pieces 241 are air cylinders, and two sets of air cylinders are arranged on two opposite sides of thepush plate 243. The pushingmember 241 pushes the pushingplate 243 to move, the pushingplate 243 drives the pushingrod 242 and the two-shotlower mold core 22 to move, and when the top surface of the two-shotlower mold core 22 moves from theinsertion portion 32 to theinsert portion 31, the two-shot injection molded part formed on the surface of theinsert portion 31 is ejected.

Referring to fig. 4 and 5, the injection-side mold core 13 includes a slide block 131, and the slide block 131 is provided with an inclined groove; aninjection mold core 11 is fixed on aninjection mold 14, aninjection mold 14 is fixed with aninclined top 141, and theinclined top 141 comprises avertical section 1411 and aninclined section 1412 extending into the inclined groove. During mold separation, anupper injection mold 14 and an upperinjection mold core 11 move away from a lowerinjection mold core 12, theinclined top 141 moves along with the movement, and further lateral pressure is applied to the slide block 131 to force the slide block 131 to move laterally and away from themold insert 30, so that separation of a sideinjection mold core 13 is completed. The demolding structure of the two-shot-side mold core 23 is the same, and is not described herein.

The utility model discloses a double-colored mould for monochromatic injection molding machine puts into aninjection mould 10 withmold insert 30, and thegrafting portion 32 of mold insert 30 stretches into downwards and sets up in a first spliced eye that jets offmold core 12 to make the 33 joints of joint portion of mold insert 30 in theejector pin 40 of a monochromatic injection molding machine, once mould plastics, one is jetted that the shaping of injection molding spare is jetted at one and is held between chamber andmold insert 30. After injection molding, an injectionupper mold core 11 is separated from an injectionlower mold core 12 by a single-color injection molding machine, and an injectionside mold core 13 is also separated from an injection molded part. Theinsert 30 and an injection molding part are separated from the injectionlower mold core 12 by pushing theejector pin 40 of the injection molding machine, and theinsert 30 and an injection molding part are taken down from theejector pin 40 after the separation.

Theinsert 30 and an injection molding piece are placed into the two-shot mold 20, theinsertion part 32 of theinsert 30 extends downwards into a second insertion hole formed in the two-shotlower mold core 22, theclamping part 33 of theinsert 30 is clamped on theejector rod 40 of another single-color injection molding machine for secondary injection molding, and the two-shot injection molding piece is molded between theinsert 30 and the two-shot cavity. After injection molding, the two-injectionupper mold core 21 is separated from the two-injectionlower mold core 22 under the action of a single-color injection molding machine, and the two-injectionside mold core 23 is also separated from a two-injection molded part. Thestripper assembly 24 pushes the top surface of the two-shot core 22 from theinsert portion 32 to theinsert portion 31 to force the two-shot injection molded part on the surface of theinsert portion 31 away from theinsert 30. After separation, under the push of theejector rod 40 of another injection molding machine, theinsert 30 and the second injection molding part are separated from the second injectionlower mold core 22, after separation, the second injection molding part and theinsert 30 are respectively taken down, and then theinsert 30 is sent back to thefirst injection mold 10 to be circulated in sequence. The utility model discloses a double-colored mould can be applicable to monochromatic injection molding machine production bijection injection molding, and need not to purchase costly double-colored injection molding machine, very big reduction manufacturing cost.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims (6)

1. A double-color mould for a single-color injection molding machine is characterized by comprising a first-shot mould, a second-shot mould and an insert;

the injection mold comprises an injection upper mold core, an injection lower mold core and a plurality of injection side mold cores, wherein the injection upper mold core, the injection lower mold core and the plurality of injection side mold cores enclose an injection cavity for accommodating the mold insert, and an injection molding piece is molded between the injection cavity and the mold insert;

the insert comprises an insert part and a plugging part formed by protruding from the lower end of the insert part, the lower injection mold core is provided with a first plugging hole matched with the plugging part, and the insert also comprises a clamping part detachably connected with an ejector rod of the injection molding machine;

the two-shot mold comprises a two-shot upper mold core, a two-shot lower mold core and a plurality of two-shot side mold cores, wherein the two-shot upper mold core, the two-shot lower mold core and the plurality of two-shot side mold cores enclose a two-shot containing cavity for containing an insert, a two-shot injection molding piece is formed between the insert and the two-shot containing cavity, the two-shot lower mold core is provided with a second plug hole matched with the plug part, and the two-shot lower mold core further comprises a demolding component, wherein the demolding component is used for pushing the top surface of the two-shot lower mold core to move upwards from the plug part to the insert part so as to eject the two-shot.

2. The dual-color mold of claim 1, wherein the insertion portion comprises an insertion upper portion and an insertion lower portion, a periphery of the insertion upper portion is defined by an arc surface and at least one positioning plane, and the first insertion hole and the second insertion hole are matched with the insertion upper portion.

3. The dual-color mold of claim 2, wherein the bottom surface of the injection lower mold core abuts against an injection support plate for supporting the insertion portion, the injection support plate being provided with a first receiving hole matching with the lower portion of the insertion;

the lower end face of the two-shot lower die core is abutted against a two-shot supporting plate for supporting the inserting part, and a second containing hole matched with the lower part of the inserting part is formed in the two-shot supporting plate.

4. The double-color mold for a single-color injection molding machine according to claim 1, wherein the clamping portion comprises a groove formed in the bottom surface of the insertion portion, a strip-shaped hole formed in the bottom surface of the groove, and an inner clamping cavity located at an end of the strip-shaped hole away from the groove, a clamping block matched with the strip-shaped hole is formed at the top end of the ejector rod, the clamping block extends into the groove and extends into the inner clamping cavity from the strip-shaped hole, and clamping is completed by rotating a preset angle.

5. A double-colored mold for a single-color injection molding machine according to any one of claims 1 to 3, wherein the demolding assembly comprises a thrust member, a plurality of push rods, a push plate, and a push rod fixing plate, the plurality of push rods having one end fixed to the two-shot lower mold core and the other end confined between the push rod fixing plate and the push plate, the output end of the thrust member being provided on the push plate.

6. The double-color mold for a single-color injection molding machine according to any one of claims 1 to 3, wherein the one-shot mold core comprises a slide block, and inclined grooves are formed on the slide block;

the injection mold core is fixed on an injection mold, the injection mold is fixed with an inclined top, and the inclined top comprises a vertical section and an inclined section extending into the inclined groove.

Images