CN114274555A - Pultrusion mould capable of detecting curing condition - Google Patents

Abstract

The invention provides a pultrusion mould capable of detecting curing condition, which comprises: the inner sides of the upper die and the lower die are both provided with forming cavities, and temperature measuring holes are formed in the upper die and the lower die in a penetrating manner along the pultrusion direction; the detection cavity is arranged at the top of the upper die and communicated with the inside of the forming cavity; the detection part is arranged in the detection cavity. According to the pultrusion die capable of detecting the curing condition, the detection part is arranged on the upper die, when the curing condition of the die needs to be detected, the detection part can be detached, then the detection part is matched with temperature detection equipment to carry out veneering detection on a plurality of positions of the die, the molding condition of the die can be visually seen, the curing condition of the die can be accurately and better known, the detachment and installation of the detection part are simple and convenient to operate, and meanwhile, the installation is stable through the arrangement of the positioning part.

Description

Pultrusion mould capable of detecting curing condition

Technical Field

The invention relates to the field of pultrusion molds, in particular to a pultrusion mold capable of detecting a curing condition.

Background

Pultrusion is a rapid continuous production process of composite materials, a cavity for molding is used inside a closed die, the die needs to be heated to promote resin curing in the production process, heating needs to be controlled, and control needs temperature signals as feedback.

And resin can also produce a large amount of heats when the cavity is solidified, this heat conducts to the temperature measurement position through the mould cavity, after reaching heat balance inside and outside, the temperature that records can be less than actual shaping cavity temperature all the time, and different products use different mould sizes, and heat conductivility is different, and the resin that the temperature reduces also has great difference. The temperature measured at this time can be used only for heating control, and there is a great difficulty in evaluating the curing condition of the resin;

at the temperature measuring position of the conventional mold, temperature measuring holes perpendicular to the pultrusion production direction are arranged at intervals along the pultrusion direction, the punching depth is only about 2cm, the distance from the surface of a forming cavity inside the mold is usually 3-4cm, the forming and curing conditions of the mold are detected, the accuracy is low, and the curing conditions of the mold cannot be actually seen.

Therefore, it is necessary to provide a pultrusion die capable of detecting the curing condition to solve the technical problems.

Disclosure of Invention

The invention provides a pultrusion mould capable of detecting a curing condition, which solves the problems that the accuracy is low and the curing condition of the mould cannot be actually seen when the curing condition of the mould is detected through a vertically-arranged temperature measuring hole at present.

In order to solve the above technical problems, the pultrusion mould capable of detecting the curing condition provided by the invention comprises:

the die comprises a die main body, a die core and a die core, wherein a forming cavity is formed in the inner side of the die main body, and temperature measuring holes are formed in the die main body in a penetrating mode along the pultrusion direction;

the detection cavity is arranged at the top of the die main body and communicated with the inside of the forming cavity;

the detection part is arranged in the detection cavity;

the two positioning pieces are symmetrically arranged on two sides of the top of the die main body;

when the curing condition of the product in the mold is detected, the detection part is detected through the temperature measuring hole or taken out, and the detection cavity is used for further detection.

Preferably, the detection cavity comprises a threaded hole, a cylindrical hole is formed in the bottom of the inner surface of the threaded hole, strip-shaped holes are formed in the two sides of the inner surface of the cylindrical hole, the cylindrical hole and the strip-shaped holes are communicated with the inside of the forming cavity, and the upper side of each strip-shaped hole is communicated with the inside of the threaded hole.

Preferably, the detection portion includes the nut, the bottom of nut is rotated and is connected with the embedding axle, the equal fixedly connected with bar embedding piece in both sides of embedding axle, the one end of bar embedding piece is provided with ascending extension.

Preferably, a circular groove is formed in the top of the nut, a driving block is arranged inside the circular groove and comprises an outer sleeve block and an inner sleeve block, the inner sleeve block is fixed inside the circular groove, the outer sleeve block is connected to the surface of the inner sleeve block in a sliding mode, sliding grooves are formed in the two sides of the inner sleeve block, inward protrusions are arranged on the two sides of the inner wall of the outer sleeve block, and the protrusions extend to the inside of the sliding grooves.

Preferably, the setting element includes the location axle, the location axle is fixed in the top of mould main part, the surface cover of location axle is equipped with the sleeve pipe, sheathed tube one side fixedly connected with limiting plate, the inside downside of sleeve pipe location axle is provided with the elastic component, the inside of location axle and the upside that is located the elastic component slide and be provided with the piston piece, the top fixedly connected with of piston piece presses the axle.

Preferably, the top of pressing the axle runs through the location axle and extends to the upside of location axle, the top fixedly connected with who presses the axle presses the cap, the bar hole has been seted up to one side of location axle, the ring channel has been seted up to one side of sleeve pipe internal surface, the upside of ring channel internal surface is ninety degrees and has seted up two spacing grooves.

Preferably, one side of the piston block is fixedly connected with a positioning block, and one side of the positioning block extends into the limiting groove through a strip-shaped hole.

Preferably, the inside of the upper and lower sides of the die main body is provided with a cooling cavity, and the upper side and the lower side of the inner surface of the cooling cavity are provided with convex arc surfaces and concave arc surfaces in a staggered manner.

Preferably, a plurality of baffle plates are fixedly connected inside the cooling cavity, and a flow guide opening is reserved between one end of each adjacent baffle plate opposite to the corresponding baffle plate and the two sides of the inner wall of the cooling cavity.

Preferably, the cooling chamber is through communicating pipe intercommunication in the mould main part, communicating pipe includes upper tube and low tube, the bottom of upper tube is provided with the extension pipe, the surface bonding of extension pipe has the sealing washer.

Compared with the related art, the pultrusion mould capable of detecting the curing condition has the following beneficial effects:

the invention provides a pultrusion mould capable of detecting the curing condition, which is characterized in that a detection part is arranged on an upper mould, when the curing condition of the mould needs to be detected, the detection part can be detached, then the detection part is matched with temperature detection equipment to carry out veneering detection on a plurality of positions of the mould, the moulding condition of the mould can be visually seen, the curing condition of the mould can be more accurately and better known, the detachment and installation of the detection part are simple and convenient to operate, and meanwhile, the installation is stable by arranging a positioning part.

Drawings

FIG. 1 is a schematic structural view of a first embodiment of a pultrusion die capable of detecting curing provided by the invention;

FIG. 2 is a schematic view of a portion of the structure shown in FIG. 1;

FIG. 3 is a schematic structural view of the detecting part shown in FIG. 1;

FIG. 4 is a cross-sectional view of the detecting part shown in FIG. 3;

FIG. 5 is a cross-sectional view of the positioning member shown in FIG. 1;

FIG. 6 is a schematic structural view of the bushing shown in FIG. 5;

FIG. 7 is a schematic structural diagram of a pultrusion die capable of detecting curing according to a second embodiment of the invention;

fig. 8 is a partial schematic view of the lower mold shown in fig. 7.

Reference numbers in the figures:

1. an upper die, 2, a lower die, 3, a molding cavity, 4 and a temperature measuring hole,

5. adetection part 51, anut 52, an embeddedshaft 53, a strip-shaped embeddedblock 54, acircular groove 55, a driving block,

551. anouter sleeve block 552, aninner sleeve block 553, a sliding groove,

6.positioning piece 61,positioning shaft 62,sleeve 63,piston block 64,elastic piece 65,positioning block 66,strip hole 67,ring groove 68,limit groove 69,limit plate 60, pressing shaft,

7. a threadedhole 8, a cylindrical hole 9, a strip-shaped hole,

10. a cooling cavity, 11, a baffle plate, 12, a connecting pipe head,

13. a communicatingpipe 131, anupper pipe 132, alower pipe 133, an extension pipe,

14. a flow guide port, 15 and a detection hole.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

First embodiment

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, wherein fig. 1 is a schematic structural diagram of a pultrusion die capable of detecting a curing condition according to a first embodiment of the present invention; FIG. 2 is a schematic view of a portion of the structure shown in FIG. 1; FIG. 3 is a schematic structural view of the detecting part shown in FIG. 1; FIG. 4 is a cross-sectional view of the detecting part shown in FIG. 3; FIG. 5 is a cross-sectional view of the positioning member shown in FIG. 1; fig. 6 is a schematic view of the structure of the socket shown in fig. 5. A pultrusion die capable of detecting curing conditions comprises:

the die comprises a die main body, wherein a forming cavity is formed in the inner side of the die main body, and temperature measuring holes 4 are formed in the die main body in a penetrating mode along the pultrusion direction;

the detection cavity is arranged at the top of the die main body and communicated with the inside of the forming cavity;

the detection part 5, the said detection part 5 is installed in the said detection cavity 1;

the twopositioning pieces 6 are symmetrically arranged on two sides of the top of the upper die 1;

when the curing condition of the product in the mold is detected, the detection part 5 is detected or taken out through the temperature measuring hole 4, and the cavity is further detected through detection.

Wherein the detectingpart 6 and thepositioning part 6 are both arranged at the discharging side close to the pultrusion mould, at this time, the mould is already in a curing state, and the partial length schematic diagrams of the pultrusion mould are shown in fig. 1, fig. 2 and fig. 7.

The die body may be a whole, or may be configured as an upper and lower die type of the upper die 1 and thelower die 2, or other multi-die type.

When the upper die and the lower die are adopted:

the forming cavity is arranged on the inner sides of the upper die 1 and thelower die 2, and temperature measuring holes 4 are formed in the upper die 1 and thelower die 2 in a penetrating mode along the pultrusion direction;

the detection cavity is formed in the top of the upper die 1 and communicated with the inside of the forming cavity;

when the multi-section heating equipment is sleeved between the upper die 1 and thelower die 2, a corresponding gap is reserved between the two pieces of heating equipment positioned at thepositioning part 6, or a correspondingly matched accommodating groove is formed in the position, corresponding to thepositioning part 6, of the shell of the heating equipment.

The detection cavity comprises a threaded hole 7, acylindrical hole 8 is formed in the bottom of the inner surface of the threaded hole 7, strip holes 9 are formed in two sides of the inner surface of thecylindrical hole 8, thecylindrical hole 8 and the strip holes 9 are communicated with the inside of the forming cavity 3, and the upper side of the strip holes 9 is communicated with the inside of the threaded hole 7.

By arranging the strip-shaped holes 9, the detection area of the mold is enlarged, and the curing condition of the mold is better judged.

The detection part 5 comprises anut 51, the bottom of thenut 51 is rotatably connected with an embeddingshaft 52, bar-shaped embeddingblocks 53 are fixedly connected to two sides of the embeddingshaft 52, and one end of each bar-shaped embeddingblock 53 is provided with an upward extending part.

The embeddingshaft 52 and the bar-shaped embeddingblock 53 are the same in size as thecylindrical hole 8 and the bar-shaped hole 9 and just embedded in thecylindrical hole 8 and the bar-shaped hole 9, and when the bar-shapedblock 53 is embedded in the inside of the bar-shaped hole 9, the upper side of the extending part is flush with the surface of the upper die 1.

Thenut 51 is provided with acircular groove 54 at the top, a drivingblock 55 is arranged inside thecircular groove 54, the drivingblock 55 comprises anouter sleeve block 551 and aninner sleeve block 552, theinner sleeve block 552 is fixed inside thecircular groove 54, theouter sleeve block 551 is slidably connected to the surface of theinner sleeve block 552, slidinggrooves 553 are respectively formed in both sides of theinner sleeve block 552, inward protrusions are respectively arranged on both sides of the inner wall of theouter sleeve block 551, and the protrusions extend into the slidinggrooves 553.

Thenut 51 is adapted to the threaded hole 7, and by providing the drivingblock 55 as theinner sleeve block 552 and theouter sleeve block 551, the area of theentire driving block 55 can be extended, thereby facilitating the screwing of thenut 51 by the drivingblock 55.

The settingelement 6 includeslocation axle 61,location axle 61 is fixed in go up the top of mould 1, the surface cover oflocation axle 61 is equipped withsleeve 62, one side fixedly connected with limitingplate 69 ofsleeve 62, the inside downside ofsleeve location axle 61 is provided withelastic component 64, the inside oflocation axle 61 and the upside that is locatedelastic component 64 slide and be provided withpiston block 63, the top fixedly connected with ofpiston block 63presses axle 60.

Thepositioning shaft 61 is provided with a cavity mechanism inside, thesleeve 62 can rotate relative to thepositioning shaft 61, theelastic member 64 is preferably provided as a spring,

the top of pressingaxle 60 runs throughlocation axle 61 and extends to the upside oflocation axle 61, the top fixedly connected with who pressesaxle 60 presses the cap,bar hole 66 has been seted up to one side oflocation axle 61,ring channel 67 has been seted up to one side ofsleeve pipe 62 internal surface, the upside ofring channel 67 internal surface is ninety degrees and has seted up twospacing grooves 68.

Thepressing shaft 60 is preferably configured as a rectangular shaft, wherein a rectangular hole is formed at the penetrating position of the top end of thepressing shaft 60, so that the axial direction of thepiston block 63 can be limited, and the two limitinggrooves 68 are arranged at ninety degrees from the center of the annular groove.

One side of thepiston block 63 is fixedly connected with apositioning block 65, and one side of thepositioning block 65 extends into a limitinggroove 68 through a strip-shapedhole 66.

Wherein locatingpiece 65cooperation bar hole 66 can carry on spacingly to the axial ofpiston block 63 equally, carries on spacingly to the axial of limitingplate 69 promptly, and the vallecular cavity height value ofbar hole 66 is the same with the vallecular cavity height value of spacinggroove 68 andring channel 67.

The working principle of the pultrusion die capable of detecting the curing condition provided by the invention is as follows:

when a product in the mold is just cooled and solidified, the temperature in the mold is detected through the temperature measuring holes and the temperature detection equipment, the cooling condition of the mold is obtained according to the temperature value, any position of the mold can be detected in the temperature measuring holes 4 through the temperature measuring holes 4 which are formed in a penetrating mode, the detection can be carried out at multiple positions, and the temperature information of the product in the mold at multiple positions can be obtained;

after the product in the mold begins to be gradually cured, the detection part 5 can be opened, the molding condition of the product can be visually seen, the temperature detection equipment can be directly in contact detection with the product, and meanwhile, a plurality of positions of the product can be detected and watched through the strip-shaped holes 9, so that the detection accuracy is improved, and the curing condition can be better judged;

when the detection part 5 needs to be detached, firstly, the pressing caps in the twopositioning parts 6 are sequentially pressed to push thepressing shaft 60, the pressingshaft 60 pushes thepiston block 63 to compress theelastic part 64 and drives thepositioning block 65 to move out of the limitinggroove 68 and move into theannular groove 67, at the moment, the limitingplate 69 can be rotated by ninety degrees to enable the limitingplate 69 to be staggered with the strip-shaped embeddedblock 53, at the moment, thepositioning block 65 corresponds to the limitinggroove 68 on the other side, at the moment, the pressing caps are loosened, and thepiston block 63 is pushed up under the action of theelastic part 64 to drive thepositioning block 65 to enter the limitinggroove 68 to limit the limitingplate 69 at the moment;

then, by pulling up theouter sleeve block 551, theouter sleeve block 551 and theinner sleeve block 552 are staggered, so that the height of thewhole driving block 55 is increased, thenut 51 is convenient to screw, thenut 51 is screwed out of the threaded hole 7, and the two strip-shaped embeddedblocks 53 are driven to move out of the strip-shaped holes 9, and the operation is simple;

through setting up twosetting elements 6, can fixstrip embedding piece 53 to improve the steady shape of whole detection portion 5, thereby can avoid the pultrusion process to have certain pressure to the mould at partial mould section and can not directly act on the screw thread thatnut 51 and screw hole 7 are connected, the life of extension detection portion.

Compared with the related art, the pultrusion mould capable of detecting the curing condition has the following beneficial effects:

through set up detection part 5 on last mould 1, when the solidification circumstances of mould is detected to needs, can pull down detection part 5, then cooperate temperature-detecting equipment, carry out wainscot to a plurality of positions of mould and detect, can audio-visually see the mould shaping circumstances simultaneously, can be more accurate better know the circumstances of mould solidification, and the equal easy operation of dismantlement and the installation of detection part 5 is convenient, simultaneously through setting up settingelement 6, makes the installation firm.

Second embodiment

Referring to fig. 7 and 8 in combination, based on the pultrusion mold capable of detecting the curing condition provided in the first embodiment of the present application, the second embodiment of the present application provides another pultrusion mold capable of detecting the curing condition.

Specifically, the different point of the pultrusion mould capable of detecting the curing condition provided by the second embodiment of the present application lies in that the pultrusion mould capable of detecting the curing condition has thecooling cavity 10 both provided inside the upper die 1 and thelower die 2, the upper side and the lower side of the inner surface of thecooling cavity 10 are provided with the convex arc surface and the concave arc surface in a staggered manner, and one side of the upper die 1 and one side of thelower die 2 are both connected with theconnector 12.

Set up to convex arc face and concave arc face through the upside with coolingchamber 10 internal surface and downside are crisscross can improve the area of contact with the coolant liquid, improve heat conduction efficiency, the surface of connector tube head is provided with the external screw thread, the tip correspondence of the raceway of being connected with the connector tube head is provided with the thread bush, can be connected with it, and easy operation, wherein go up detection cavity and coolingchamber 10 on the mould 1 and do not communicate, the part that is located the detection cavity promptly does not set up coolingchamber 10, it is the intercommunication to go up the insidewhole cooling chamber 10 of mould 1.

A plurality ofbaffle plates 11 are fixedly connected inside the coolingcavity 10, anddiversion ports 14 are respectively reserved between one opposite end of eachadjacent baffle plate 11 and two sides of the inner wall of thecooling cavity 10.

Can make the coolant liquid fill whole cooling chamber completely through setting up bafflingboard 11 and improve cooling rate, wherein the inspection hole 15 has been seted up to the position that the centre of bafflingboard 11 corresponds connectingtube head 12, and the diameter of inspection hole 15 is far less than connectingtube head 12's internal diameter, can cooperate the shaft-like detection portion of temperature measurement equipment to detect the inside temperature of mould through seting up inspection hole 15, and bafflingboard 11 can guarantee to go upmould 1 or 2 holistic stability of lower mould simultaneously.

Go up the cooling chamber in mould 1 and thelower mould 2 and pass through communicating pipe 13 intercommunication, communicating pipe 13 includesupper tube 131 andlow tube 132, the bottom ofupper tube 131 is provided withextension pipe 133,extension pipe 133's surface bonding has the sealing washer.

When the upper die 1 and thelower die 2 are correspondingly spliced, theextension pipe 133 at one end of theupper pipe 131 is correspondingly inserted into thelower pipe 132, the sealing ring is tightly attached to the inner surface of thelower pipe 132 to ensure the sealing property, and the two coolingcavities 10 are communicated through theupper pipe 131 and thelower pipe 132;

when the temperature in the mould needs to be detected, the temperature measuring equipment can be inserted into the temperature of the mould through the connectingpipe head 12, in the mould forming process, the connecting pipe heads in the upper mould 1 and thelower mould 2 can be respectively connected with pipelines, one of the pipelines is connected with a pump, the input end of the water pump is connected with a water source through the pipeline, the pipeline connected on the other connectingpipe head 12 is connected with a water storage tank, the cooling liquid is continuously pumped into thecooling cavity 10, so that the mould can be rapidly cooled, and the cooling speed is increased.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A pultrusion die capable of detecting curing conditions is characterized by comprising:

the die comprises a die main body, a die core and a die core, wherein a forming cavity is formed in the inner side of the die main body, and temperature measuring holes are formed in the die main body in a penetrating mode along the pultrusion direction;

the detection cavity is arranged at the top of the die main body and communicated with the inside of the forming cavity;

the detection part is arranged in the detection cavity;

the two positioning pieces are symmetrically arranged on two sides of the top of the die main body;

when the curing condition of the product in the mold is detected, the detection part is detected through the temperature measuring hole or taken out, and the detection cavity is used for further detection.

2. The pultrusion die capable of detecting the curing condition as claimed in claim 1, wherein the detection cavity comprises a threaded hole, a cylindrical hole is formed in the bottom of the inner surface of the threaded hole, strip-shaped holes are formed in both sides of the inner surface of the cylindrical hole, the cylindrical hole and the strip-shaped holes are communicated with the inside of the forming cavity, and the upper side of the strip-shaped hole is communicated with the inside of the threaded hole.

3. The pultrusion die capable of detecting the curing condition as claimed in claim 1, wherein the detecting portion comprises a nut, an embedding shaft is rotatably connected to the bottom of the nut, strip-shaped embedding blocks are fixedly connected to both sides of the embedding shaft, and an upward extending portion is arranged at one end of each strip-shaped embedding block.

4. The pultrusion die capable of detecting the curing condition as claimed in claim 3, wherein a circular groove is formed at the top of the nut, a driving block is arranged inside the circular groove, the driving block comprises an outer sleeve block and an inner sleeve block, the inner sleeve block is fixed inside the circular groove, the outer sleeve block is slidably connected to the surface of the inner sleeve block, sliding grooves are formed on both sides of the inner sleeve block, inward protrusions are arranged on both sides of the inner wall of the outer sleeve block, and the protrusions extend to the inside of the sliding grooves.

5. The pultrusion die capable of detecting the curing condition according to claim 1, wherein the positioning member comprises a positioning shaft, the positioning shaft is fixed at the top of the die body, a sleeve is sleeved on the surface of the positioning shaft, a limiting plate is fixedly connected to one side of the sleeve, an elastic member is arranged on the lower side of the inside of the positioning shaft of the sleeve, a piston block is arranged inside the positioning shaft and on the upper side of the elastic member in a sliding manner, and a pressing shaft is fixedly connected to the top of the piston block.

6. The pultrusion die capable of detecting the curing condition as claimed in claim 5, wherein the top end of the pressing shaft penetrates through the positioning shaft and extends to the upper side of the positioning shaft, a pressing cap is fixedly connected to the top end of the pressing shaft, a strip-shaped hole is formed in one side of the positioning shaft, an annular groove is formed in one side of the inner surface of the sleeve, and two limiting grooves are formed in the upper side of the inner surface of the annular groove at ninety degrees.

7. The pultrusion die capable of detecting the curing condition as claimed in claim 6, wherein a positioning block is fixedly connected to one side of the piston block, and one side of the positioning block extends to the inside of the limiting groove through a strip-shaped hole.

8. The pultrusion die capable of detecting the solidification condition as claimed in claim 1, wherein cooling cavities are formed in the upper and lower sides of the die body, and convex arc surfaces and concave arc surfaces are alternately arranged on the upper and lower sides of the inner surface of each cooling cavity.

9. The pultrusion die capable of detecting the curing condition as claimed in claim 8, wherein a plurality of baffle plates are fixedly connected to the inside of the cooling cavity, and diversion openings are respectively reserved between the opposite ends of the adjacent baffle plates and two sides of the inner wall of the cooling cavity.

10. The pultrusion die capable of detecting the curing condition as claimed in claim 9, wherein the cooling cavities in the die main body are communicated through a communicating pipe, the communicating pipe comprises an upper pipe and a lower pipe, an extension pipe is arranged at the bottom end of the upper pipe, and a sealing ring is bonded on the surface of the extension pipe.

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