CN109849344B - Abnormal-shaped product hot-pressing die applying heat-conducting silica gel - Google Patents
Abnormal-shaped product hot-pressing die applying heat-conducting silica gel Download PDFInfo
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- CN109849344B CN109849344B CN201910001830.9A CN201910001830A CN109849344B CN 109849344 B CN109849344 B CN 109849344B CN 201910001830 A CN201910001830 A CN 201910001830A CN 109849344 B CN109849344 B CN 109849344B
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- plate
- silica gel
- pressing
- fixing plate
- heating
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000007731 hot pressing Methods 0.000 title claims abstract description 38
- 239000000741 silica gel Substances 0.000 title claims abstract description 37
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 52
- 238000003825 pressing Methods 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims abstract 2
- 238000009413 insulation Methods 0.000 claims description 4
- 238000013329 compounding Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 6
- 238000005056 compaction Methods 0.000 abstract description 3
- 239000004744 fabric Substances 0.000 description 12
- 239000003292 glue Substances 0.000 description 6
- 229920001296 polysiloxane Polymers 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002508 compound effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the field of hot pressing, and discloses a special-shaped product hot pressing die applying heat-conducting silica gel. The die comprises an upper die fixing plate and a lower die fixing plate which are connected through guide posts, wherein a material pressing plate is arranged at the bottom of the upper die fixing plate, and a heating plate penetrating through the material pressing plate is arranged above the material pressing plate; the top of lower mould fixed plate installs locating plate and two sliders, and the middle part of locating plate is formed with annular locating head, and many locating pins are installed at both ends, and two sliders sliding contact forms the dead zone, and annular locating head is located the dead zone inside. According to the special-shaped product hot-pressing die using the heat-conducting silica gel, the die is manufactured by utilizing good heat conduction performance and hardness properties of the heat-conducting silica gel, and the hot-pressing compounding of the inner wall of the special-shaped reverse buckling product and the cloth-shaped material is realized in a deformation compaction mode, so that the whole compounding work is formed in one step, the precision and the efficiency are realized, the pre-compounding process is omitted, the hot-pressing work efficiency is improved, and the product quality is ensured.
Description
Technical Field
The invention relates to the field of hot pressing, in particular to a special-shaped product hot pressing die applying heat-conducting silica gel.
Background
In the process of producing and processing some glue products, the step of hot pressing is often carried out, namely cloth or some cloth-shaped materials are pressed with the inner side of the products, and then the electric soldering iron and the like are used for prepressing molding and hot pressing compounding manually. For some irregularly shaped products, namely special-shaped products, the inner wall of the irregular shaped products is difficult to compress with cloth or cloth-shaped materials, the cloth or cloth-shaped materials are easy to wrinkle in the process, so that the compound effect is poor, the difficulty of hot pressing is high, the success rate is low, a pre-compounding process is often needed, otherwise, the production and processing efficiency is reduced, and the reject ratio of the products is improved; in addition, the hot pressing is performed manually, and the situations of inaccurate alignment, poor manipulation and the like are easy to occur, so that the quality of a product is further reduced.
Disclosure of Invention
In order to solve the problems, the invention provides a special-shaped product hot-pressing die applying heat-conducting silica gel.
According to one aspect of the present invention, there is provided a heat-conductive silicone-applied profiled product heat pressing mold comprising:
the upper die fixing plate is slidably arranged on a plurality of vertical guide posts, and the bottom of each guide post is arranged on a lower die fixing plate;
the material pressing plate is arranged at the bottom of the upper die fixing plate through a plurality of screws;
a heating plate which is arranged at the top of the material pressing plate, the bottom of which is provided with a heating head which penetrates through the material pressing plate and extends to the lower part of the material pressing plate in a protruding way, and a heating pipe is inserted into the heating plate;
the heat conduction silica gel is annular, is installed and surrounds the tail end of the heating head;
the positioning plate is arranged at the top of the lower die fixing plate, the middle part of the positioning plate is provided with an annular positioning head corresponding to the heating head in a protruding mode, and the tops of the left end and the right end of the positioning plate are provided with a plurality of positioning pins, wherein the positioning pins are higher than the annular positioning head;
the two air cylinders are arranged on the lower die fixing plate and are respectively positioned at the front side and the rear side of the positioning plate
The two air cylinders can control the two sliding blocks to slide along the middle part of the positioning plate until the sliding blocks are in contact with each other, and at the moment, a hollow area is formed between the two sliding blocks and the annular positioning head.
According to the special-shaped product hot-pressing die using the heat-conducting silica gel, the die is manufactured by utilizing good heat conduction performance and hardness properties of the heat-conducting silica gel, and the hot-pressing compounding of the inner wall of the special-shaped reverse buckling product and the cloth-shaped material is realized in a deformation compaction mode, so that the whole compounding work is formed in one step, the precision and the efficiency are realized, the pre-compounding process is omitted, the hot-pressing work efficiency is improved, and the product quality is ensured.
In some embodiments, each corner of the upper die fixing plate is slidably mounted on each guide post through a guide sleeve. Therefore, the guide sleeve is arranged on the periphery of the guide post, so that the protection effect can be achieved when the upper die fixing plate and the guide post slide relatively.
In some embodiments, the screw is sleeved with a spring. Therefore, when the pressing plate presses materials, the screw often deforms due to stress, and the spring can apply elasticity to the pressing plate, so that the pressing plate can return to the original position conveniently.
In some embodiments, the top of each corner of the pressing plate is also connected with the bottom of the upper die fixing plate through a connecting block. From this, can reduce the atress of screw through the connecting block to further firm the installation of pressure flitch.
In some embodiments, the thermally conductive silicone has an inner ring and an outer ring, wherein the inner ring has a size not smaller than the size of the annular positioning head and the outer ring has a size not smaller than the size of the empty region. Therefore, the specific structure and the size of the heat conduction silicon are set, so that the heat conduction silicon can be stably installed in cooperation with the positioning head under the state of heating deformation.
In some embodiments, a heat shield is disposed between the heat generating plate and the upper die fixing plate, and a heat shield is also disposed between the positioning plate and the lower die fixing plate. Therefore, when the heating plate heats the heat-conducting silica gel and the like, the heat insulation plate can avoid the influence of heat on the upper die fixing plate, the lower die fixing plate and even the stamping equipment.
In some embodiments, the cylinder is mounted to the lower die fixing plate by a mounting block. Thereby, the mounting block can compensate for the height of the cylinder, so that it can slide the slider in the horizontal direction and reach a proper position.
In some embodiments, the sidewall of the void is sloped. Therefore, the heat-conducting silica gel enters the empty area along the inclined angle after being heated and deformed, so that the covered area is larger when hot pressing is carried out, and a more stable effect can be achieved in hot pressing processing.
In some embodiments, both left and right ends of the bottom of the slider protrude to the outer ends and are respectively located below two limiting blocks, wherein each limiting block is mounted on the positioning plate. Therefore, the height of the sliding block can be limited through the limiting block, so that the sliding block can be kept horizontal during sliding, and cannot be separated from the positioning plate.
In some embodiments, two heating heads are formed side by side at the bottom of the heating plate, and two annular positioning heads corresponding to the two heating heads are formed at the middle of the positioning plate. From this, through two heating heads and cyclic annular location head that set up side by side pressfitting, hot pressing is more stable when can, has improved the efficiency of hot pressing processing simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of a heat-pressing mold for a special-shaped product using heat-conducting silica gel according to an embodiment of the present invention;
FIG. 2 is a block diagram of the components of the bottom of the upper die plate shown in FIG. 1;
FIG. 3 is a block diagram of the components of FIG. 2 with the pressure plate and connecting blocks removed;
FIG. 4 is a partial block diagram of the components on top of the lower die plate shown in FIG. 1;
fig. 5 is a structural view of the components of fig. 4 with the cloth, slider and cylinder removed.
In the figure: the upper die fixing plate 1, the pressing plate 2, the heating plate 3, the heat conducting silica gel 4, the positioning plate 5, the sliding block 6, the heat insulation plate 7, the glue product 8, the cloth 9, the guide post 11, the lower die fixing plate 12, the guide sleeve 13, the screw 21, the spring 22, the connecting block 23, the heating head 31, the heating tube 32, the annular positioning head 51, the positioning pin 52, the limiting block 53, the air cylinder 61, the mounting block 62 and the empty area 63.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
Fig. 1 schematically shows a profiled product hot-pressing die using thermally conductive silicone according to an embodiment of the invention. As shown in fig. 1, the mold mainly comprises an upper mold fixing plate 1 and a lower mold fixing plate 12, main components of the invention are arranged between the upper mold fixing plate 1 and the lower mold fixing plate 12, other upper and lower mold holders and the like are all in the prior art, and are omitted herein.
The upper die fixing plate 1 and the lower die fixing plate 12 are square, a vertical guide post 11 is arranged at each corner of the lower die fixing plate 12, each corner of the upper die fixing plate 1 is respectively and slidably arranged on each guide post 11, wherein a hollow guide sleeve 13 is arranged at each corner of the upper die fixing plate 1, and each guide sleeve 13 respectively surrounds each guide post 11 and can mutually slide.
The bottom of the upper die fixing plate 1 is mainly provided with a heating plate 3, the bottom of the heating plate 3 is provided with heat conducting silica gel 4, the top of the lower die fixing plate 12 is provided with a fixing plate corresponding to the heating plate 3, the front side and the rear side of the fixing plate are respectively provided with a sliding block 6, and the fixing plate is matched with the sliding blocks 6 to fixedly install a product to be hot pressed.
Fig. 2 shows the structure of the components at the bottom of the upper die fixing plate in fig. 1, and fig. 3 shows the structure of the components in fig. 2 with the pressing plate and the connecting block removed. As shown in fig. 2-3, a pressing plate 2 is mounted at the bottom of the upper die fixing plate 1 through a plurality of screws 21 and a plurality of connecting blocks 23, wherein each screw 21 penetrates through the upper die fixing plate 1 from above, the bottom is fixed on each side of the pressing plate 2, and springs 22 are sleeved on the screws 21 to relieve the acting force applied to the pressing plate 2 during pressing; the bottom of each connecting block 23 is connected with each corner of the pressing plate 2, so that the pressing plate 2 is fixed at the bottom of the upper die fixing plate 1, and a certain space is reserved between the pressing plate 2 and the upper die fixing plate 1 to be identical to other components.
A horizontal heating plate 3 is arranged on the top of the pressing plate 2, at least one heating tube 32 for heating is inserted into the heating plate 3, the bottom of the heating plate 3 protrudes downwards to form a heating head 31, and the heating head 31 penetrates through the pressing plate 2 and extends to the lower part of the pressing plate 2. The heating heads 31 are preferably arranged at the bottom of the rectangular heating plate 3 in a side-by-side manner.
A heat-conducting silicone gel 4 is arranged on the end part of each heating head 31 below the material pressing plate 2, wherein the heat-conducting silicone gel 4 is annular and is provided with an inner layer ring and an outer layer ring, and surrounds the periphery of the end of the heating head 31.
Furthermore, a heat insulating plate 7 is provided between the heating plate 3 and the upper die fixing plate 1, and a partition plate may be provided in more than one piece, which can prevent the heating plate 3 from heating to affect the upper die fixing plate 1 on the one hand and can fill the empty space 63 between the heating plate 3 and the upper die fixing plate 1 on the other hand.
Fig. 4 shows the structure of the parts on top of the lower die fixing plate of fig. 1, and fig. 5 shows the structure of the parts of fig. 4 after the cloth, the slide and the cylinder are removed. As shown in fig. 4 to 5, a positioning plate 5 is provided on top of the lower die fixing plate 12, and preferably, a heat insulating plate 7 may be provided between the positioning plate 5 and the lower die fixing plate 12, and more than one partition may be provided, which can prevent the positioning plate 5 from being affected by heat to the lower die fixing plate 12.
The middle part of the positioning plate 5 is formed with annular positioning heads 51 in a protruding manner, wherein the number and the positions of the annular positioning heads 51 are corresponding to the heating heads 31 at the bottom of the heating plate 3, and the size of the annular positioning heads 51 is not larger than the size of the inner ring of the heat conducting silica gel 4. And a plurality of positioning pins 52 are provided at the top of both the left and right ends of the positioning plate 5, wherein the positioning pins 52 are used for mounting the cloth 9, and the height thereof is higher than that of the annular positioning head 51.
Two air cylinders 61 are also arranged on the lower die fixing plate 12, wherein the two air cylinders 61 are respectively positioned on the front side and the rear side of the positioning plate 5, and piston rods of the two air cylinders are horizontal and are connected with one sliding block 6. The sliding blocks 6 are slidably arranged on the positioning plate 5 and can slide along the middle of the positioning plate 5 under the control of the air cylinder 61, and the two sliding blocks 6 can slide relatively until contacting each other.
The limiting blocks 53 are arranged on the front side and the rear side of the middle of the locating plate 5, the limiting blocks 53 are four in number, the left end and the right end of the bottom of the sliding block 6 on each side are protruded towards the outer ends, the limiting blocks 53 are respectively positioned below the two limiting blocks 53 on the side, the limiting blocks 53 can limit the position of the sliding block 6 by pressing the protruding parts of the bottom of the sliding block 6 towards the outer ends, and the sliding block is prevented from being separated from the locating plate 5 from the upper side due to improper stress and the like.
In addition, the bottom of the cylinder 61 may be mounted on the lower die fixing plate 12 by providing a mounting block 62 to ensure that its height is leveled with the slide 6.
The two slide blocks 6 are provided with inward sinking parts on opposite surfaces, when the two slide blocks 6 slide to be contacted with each other, the inward sinking parts of the two slide blocks 6 are matched to enclose the annular positioning head 51 inside but are not contacted with the annular positioning head 51, so an annular empty area 63 is formed between each slide block 6 and the annular positioning head 51, and the empty area 63 is used for mounting a glue piece product 8 to be subjected to hot pressing.
The side wall of the empty area 63 is inclined and has a size not larger than the size of the outer ring of the heat conductive silicone 4, and when the glue product 8 is mounted, the glue product 8 is closely attached to the outer side wall of the empty area 63, i.e., the inward recessed portion of each slider 6, and does not contact the annular positioning head 51, so that the size of the remaining space of the empty area 63 is generally smaller than the size of the outer ring of the heat conductive silicone 4 after the glue product 8 is mounted.
When the special-shaped product hot-pressing die is used for hot-pressing the rubber product 8, the die is placed on a machine tool, then the two sliding blocks 6 are slid to be in contact with each other, the rubber product 8 is installed in the empty area 63, then two ends of the cloth 9 are respectively installed on the positioning pins 52 on two sides of the positioning plate 5, and the cloth 9 is located right above the rubber product 8 and right below the heat-conducting silica gel 4.
Starting the heating tube 32 to heat the heating plate 3, heating the heat-conducting silica gel 4 to be in a variable shape state through the conduction of the heating head 31, then operating the machine tool to enable the upper die fixing plate 1 to slide down along the guide post 11 to be close to the lower fixing plate, and enabling the heat-conducting silica gel 4 to press the cloth 9 and move down continuously, wherein an outer layer ring of the heat-conducting silica gel 4 stretches into the empty area 63, and because the heat-conducting silica gel 4 is easy to deform and the size of the outer layer ring is larger than that of the empty area 63, the heat-conducting silica gel 4 is difficult to slide after stretching into the empty area 63, so that the adhesive product 8 can be pressed and fastened; the inner ring of the heat-conducting silica gel 4 is easy to deform because the inner ring of the heat-conducting silica gel 4 stretches into the annular positioning head 51, and the inner ring is not smaller than the annular positioning head 51 in size, so that the inner ring is difficult to slip after stretching into the annular positioning head, and therefore, the hot pressing work of the rubber piece product 8 and the cloth 9 can be completed. After the hot pressing operation is completed, the upper die fixing plate 1 is controlled to ascend, so that the heat-conducting silica gel 4 is separated from the annular positioning head 51, the processed product is taken out, and the new rubber product 8 and cloth 9 to be processed are replaced, so that the hot pressing operation can be performed.
According to the special-shaped product hot-pressing die using the heat-conducting silica gel, the die is manufactured by utilizing good heat conduction performance and hardness properties of the heat-conducting silica gel, and the hot-pressing compounding of the inner wall of the special-shaped reverse buckling product and the cloth-shaped material is realized in a deformation compaction mode, so that the whole compounding work is formed in one step, the precision and the efficiency are realized, the pre-compounding process is omitted, the hot-pressing work efficiency is improved, and the product quality is ensured.
What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.
Claims (7)
1. A special-shaped product hot-pressing die applying heat conduction silica gel is characterized in that: comprising
The upper die fixing plate (1), the upper die fixing plate (1) is slidably arranged on a plurality of vertical guide posts (11), and the bottom of each guide post (11) is arranged on a lower die fixing plate (12);
the material pressing plate (2) is arranged at the bottom of the upper die fixing plate (1) through a plurality of screws (21);
a heating plate (3), wherein the heating plate (3) is arranged at the top of the material pressing plate (2), a heating head (31) penetrating through the material pressing plate (2) and extending to the lower part of the material pressing plate (2) is formed at the bottom of the heating plate, and a heating tube (32) is inserted into the heating plate (3);
the heat conduction silica gel (4), the heat conduction silica gel (4) is annular, and is installed and surrounds the tail end of the heating head (31);
the positioning plate (5), the positioning plate (5) is arranged at the top of the lower die fixing plate (12), the middle part of the positioning plate is provided with an annular positioning head (51) corresponding to the heating head (31) in a protruding mode, the tops of the left end and the right end of the positioning plate (5) are provided with a plurality of positioning pins (52), and the positioning pins (52) are higher than the annular positioning head (51);
the two sliding blocks (6) are respectively connected with the two air cylinders (61), the two air cylinders (61) are arranged on the lower die fixing plate (12) and are respectively positioned on the front side and the rear side of the locating plate (5), the left end and the right end of the bottom of the sliding blocks (6) are respectively protruded towards the outer ends and are respectively positioned below the two limiting blocks (53), and each limiting block (53) is arranged on the locating plate (5);
wherein, the two air cylinders (61) can control the two sliding blocks (6) to slide along the middle part of the positioning plate (5) until the sliding blocks are contacted with each other, at the moment, an annular empty area (63) is formed between the two sliding blocks (6) and the annular positioning head (51), and the side wall of the empty area (63) is inclined;
the heat-conducting silica gel (4) is provided with an inner ring and an outer ring, the size of the inner ring is not smaller than that of the annular positioning head (51), and the size of the outer ring is not smaller than that of the empty area (63).
2. The profiled product hot-pressing die using heat conductive silica gel as defined in claim 1, wherein: each angle of the upper die fixing plate (1) is slidably arranged on each guide post (11) through a guide sleeve (13).
3. The profiled product hot-pressing die using heat conductive silica gel as defined in claim 1, wherein: the screw (21) is sleeved with a spring (22).
4. The profiled product hot-pressing die using heat conductive silica gel as defined in claim 1, wherein: the top of each corner of the material pressing plate (2) is also connected with the bottom of the upper die fixing plate (1) through a connecting block (23).
5. The profiled product hot-pressing die using heat conductive silica gel as defined in claim 1, wherein: a heat insulation plate (7) is arranged between the heating plate (3) and the upper die fixing plate (1), and a heat insulation plate (7) is also arranged between the positioning plate (5) and the lower die fixing plate (12).
6. The profiled product hot-pressing die using heat conductive silica gel as defined in claim 1, wherein: the cylinder (61) is mounted on the lower die fixing plate (12) through a mounting block (62).
7. A shaped product hot-pressing die using heat conductive silica gel according to any one of claims 1 to 6, wherein: two heating heads (31) are formed at the bottom of the heating plate (3) side by side, and two annular positioning heads (51) corresponding to the two heating heads (31) are formed at the middle part of the positioning plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910001830.9A CN109849344B (en) | 2019-01-02 | 2019-01-02 | Abnormal-shaped product hot-pressing die applying heat-conducting silica gel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910001830.9A CN109849344B (en) | 2019-01-02 | 2019-01-02 | Abnormal-shaped product hot-pressing die applying heat-conducting silica gel |
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| Publication Number | Publication Date |
|---|---|
| CN109849344A CN109849344A (en) | 2019-06-07 |
| CN109849344B true CN109849344B (en) | 2024-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910001830.9A Active CN109849344B (en) | 2019-01-02 | 2019-01-02 | Abnormal-shaped product hot-pressing die applying heat-conducting silica gel |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08276497A (en) * | 1995-04-07 | 1996-10-22 | Inoac Corp | Molding of elastic mat |
| JP2012245646A (en) * | 2011-05-25 | 2012-12-13 | Daiichi Seiko Kk | Thermocompression bonding system and thermocompression bonding method |
| CN103085276A (en) * | 2013-02-04 | 2013-05-08 | 西北工业大学 | Lapping device used in linking resin-based composite material prepreg tape |
| CN103152690A (en) * | 2013-02-27 | 2013-06-12 | 黄清山 | Drum paper forming pressing mold |
| CN204035288U (en) * | 2014-08-04 | 2014-12-24 | 竹昌精密冲压件(上海)有限公司 | A kind of heat pressing utensil |
| CN204773527U (en) * | 2015-07-20 | 2015-11-18 | 武汉泰盛汽车内饰件有限公司 | Car seat headrest sponge hot pressing mould |
| CN207077780U (en) * | 2017-08-30 | 2018-03-09 | 平湖市新保纺织科技有限公司 | A kind of gluing device for heating compounding machine |
-
2019
- 2019-01-02 CN CN201910001830.9A patent/CN109849344B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08276497A (en) * | 1995-04-07 | 1996-10-22 | Inoac Corp | Molding of elastic mat |
| JP2012245646A (en) * | 2011-05-25 | 2012-12-13 | Daiichi Seiko Kk | Thermocompression bonding system and thermocompression bonding method |
| CN103085276A (en) * | 2013-02-04 | 2013-05-08 | 西北工业大学 | Lapping device used in linking resin-based composite material prepreg tape |
| CN103152690A (en) * | 2013-02-27 | 2013-06-12 | 黄清山 | Drum paper forming pressing mold |
| CN204035288U (en) * | 2014-08-04 | 2014-12-24 | 竹昌精密冲压件(上海)有限公司 | A kind of heat pressing utensil |
| CN204773527U (en) * | 2015-07-20 | 2015-11-18 | 武汉泰盛汽车内饰件有限公司 | Car seat headrest sponge hot pressing mould |
| CN207077780U (en) * | 2017-08-30 | 2018-03-09 | 平湖市新保纺织科技有限公司 | A kind of gluing device for heating compounding machine |
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| CN109849344A (en) | 2019-06-07 |
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