CN114148027B - A hot pressing mold - Google Patents
A hot pressing mold Download PDFInfo
- Publication number
- CN114148027B CN114148027B CN202111459620.8A CN202111459620A CN114148027B CN 114148027 B CN114148027 B CN 114148027B CN 202111459620 A CN202111459620 A CN 202111459620A CN 114148027 B CN114148027 B CN 114148027B
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- Prior art keywords
- mold
- cavity
- die
- lower mold
- upper mold
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007731 hot pressing Methods 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 88
- 230000007246 mechanism Effects 0.000 claims abstract description 79
- 239000002994 raw material Substances 0.000 claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims description 17
- 238000000465 moulding Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000002245 particle Substances 0.000 description 10
- 239000004033 plastic Substances 0.000 description 7
- 229910000838 Al alloy Inorganic materials 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910001297 Zn alloy Inorganic materials 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 229910021389 graphene Inorganic materials 0.000 description 5
- 239000007769 metal material Substances 0.000 description 5
- 229920001187 thermosetting polymer Polymers 0.000 description 5
- 210000000988 bone and bone Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 229920001342 Bakelite® Polymers 0.000 description 2
- 239000004637 bakelite Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/32—Discharging presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/34—Heating or cooling presses or parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
本发明公开了一种热压类模具。下模框上部中心设置有下模模芯，下模模芯下方设置有下模发热孔，下模模芯上设置有下模感温线孔，下模模芯与上模模芯之间的分型面处设置有管料机构形成的腔体，所述的管料机构形成的腔体分别为A型管料机构形成的管料腔体和B型管料机构形成的管料腔体，所述的管料机构包括上模管料机构和下模管料机构，上模管料机构和下模管料机构配合形成密封或半密封的模具腔体。本发明可通过管料机构以管住原材料在投料及软料的过程中不会向周边乱跑，提高生产效率提高产品良品率。
The present invention discloses a hot pressing type mold. A lower mold core is arranged at the center of the upper part of the lower mold frame, a lower mold heating hole is arranged below the lower mold core, a lower mold temperature sensing line hole is arranged on the lower mold core, and a cavity formed by a pipe material mechanism is arranged at the parting surface between the lower mold core and the upper mold core. The cavities formed by the pipe material mechanism are respectively formed by the A-type pipe material mechanism and the B-type pipe material mechanism. The pipe material mechanism includes an upper mold pipe material mechanism and a lower mold pipe material mechanism. The upper mold pipe material mechanism and the lower mold pipe material mechanism cooperate to form a sealed or semi-sealed mold cavity. The present invention can control the raw materials through the pipe material mechanism so that they will not run around during the feeding and softening process, thereby improving production efficiency and product yield.
Description
Technical Field
The invention relates to the technical fields of production, processing, preparation and molding of composite material products such as thermosetting plastic materials, bakelite powder, powder particle metal materials, graphite, graphene heat conduction powder particles and the like, in particular to a hot-pressing die.
Background
At present, the known thermosetting hot-press molding type mold adopts an upper plate mold structure and a lower plate mold structure, only products with simple appearance and no fine deep bone position can be produced, the mold is not fully filled when the products with the fine deep bone position are produced, the products are manually taken out or taken out after the lower mold of the mold is taken out, the products are taken out again through knocking or other manual modes, the automatic production degree is low, the production efficiency is extremely low, and the product yield is extremely low. And cannot produce shaped powder particle metal materials, graphene heat-conducting powder particles and other composite materials.
The known plastic mould adopts the mode that materials such as plastic, zinc alloy, aluminum alloy and the like are firstly melted by heating and then injected into a mould cavity by adopting a screw pressurizing mode. It is well known that conventional thermosetting plastic materials, bakelite powder, powder particle metal materials, graphene heat-conducting powder particles and other composite materials cannot be melted and have no fluidity. Therefore, the prior known plastic molds and zinc alloy, aluminum alloy and other types of molds cannot be produced to mold the materials.
In summary, the invention designs a hot-pressing mold.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a hot-pressing die, which can prevent raw materials from running out to the periphery in the process of feeding and softening materials through a pipe feeding mechanism, so that the production efficiency is improved, and the product yield is improved.
The hot press type die comprises an upper die panel, an upper die frame, a lower die frame, die legs, ejector pins, a lower die bottom plate, an upper die core, a lower die core, a guide sleeve, guide posts, a reset return pin, a lower die heating hole, a lower die temperature sensing wire hole, an upper die temperature sensing wire hole, an ejector pin plate, a pipe cavity formed by an A-type pipe mechanism and a pipe cavity formed by a B-type pipe mechanism, wherein the upper die frame is provided with the upper die panel, the guide sleeves are arranged on the side edges of the upper die frame, the guide posts are slidably matched in the guide sleeves, the upper die core is arranged in the middle of the inner side of the upper die frame, the upper die core is provided with the upper die heating hole, the bottom of the guide posts is connected with the reset return pin, the upper die frame is matched with the lower die frame, the lower die legs are arranged on the die bottom plate, the ejector pins are connected with the reset return pin, the center of the lower die frame is provided with the lower die core, the lower die legs are provided with the lower die core, the lower die core is provided with the lower die cavity formed by the lower die core, the lower die core is provided with the pipe cavity formed by the lower die core, the pipe cavity is formed by the lower die mechanism, and the pipe cavity is formed by the lower die core is provided with the pipe cavity formed by the lower die mechanism.
Preferably, the pipe material mechanism comprises an upper die pipe material mechanism and a lower die pipe material mechanism, and the upper die pipe material mechanism and the lower die pipe material mechanism are matched to form a sealed or semi-sealed die cavity.
Preferably, the upper die pipe material mechanism presses downwards to form a sealing or semi-sealing pipe material cavity part before the upper die contacts the formed material of the lower die, and the raw material used for forming by the die is powder or granular, so that the raw material can be managed by the pipe material mechanism and cannot run around in the process of feeding and softening. When the upper die moves downwards under the action of pressure, the pipe material mechanisms of the upper die and the lower die are contacted in advance to form a sealed or semi-sealed die cavity in the die, so that when the upper die moves downwards again, the formed material in the die can be extruded and filled into the die in an outer ring sealed or semi-sealed state until the small corners of the die cavity are filled. So as to ensure that the processed raw materials can not overflow to the outside of the die in advance to fill the cavity in the die when the upper die is pressed down during the processing and forming of the die. And under the downward pressure of the upper die, the excessive material is discharged outwards through the gap between the upper die and the lower die after the inside of the die cavity is filled with the molding raw material. So that burrs generated at the edges of the product after the excessive material overflows the cavity are not too thick.
Preferably, the pipe feeding mechanism is realized by directly processing an original die or adding an insert on the existing die through post connection.
The invention has the beneficial effects that:
1. The invention solves the problems that the prior thermosetting hot-press molding type mould can only produce products with simple appearance and no tiny deep bone position, the mould is not filled when producing complex products with tiny deep bone position, the products are taken out manually or taken out by knocking or other manual modes after the lower mould of the mould is taken out, the automatic production degree is not high, the production efficiency is extremely low, the product yield is extremely low, and the like. The invention improves the production efficiency and the product yield;
2. The invention solves the problems of production, processing, preparation, molding, application and the like of composite materials such as powder particle metal materials, graphene heat-conducting powder particles and the like.
3. The invention solves the problems that the prior plastic mold cannot use a hot pressing mode to produce and mold traditional thermosetting plastic materials, powder particle metal materials, graphene heat conduction powder particles and other composite materials, such as production, preparation, molding, application and the like, with zinc alloy, aluminum alloy and other types of molds.
4. Because the raw materials used for molding by the die are powder or granular, the raw materials can be managed by the pipe material mechanism, and the raw materials cannot run out to the periphery in the process of feeding and softening.
5. When the upper die moves downwards under the action of pressure, the pipe material mechanisms of the upper die and the lower die are contacted in advance to form a sealed or semi-sealed die cavity in the die, so that when the upper die moves downwards again, the formed material in the die can be extruded and filled into the die in an outer ring sealed or semi-sealed state until the small corners of the die cavity are filled. So as to ensure that the processed raw materials can not overflow to the outside of the die in advance to fill the cavity in the die when the upper die is pressed down during the processing and forming of the die. And under the downward pressure of the upper die, the excessive material is discharged outwards through the gap between the upper die and the lower die after the inside of the die cavity is filled with the molding raw material. So that burrs generated at the edges of the product after the excessive material overflows the cavity are not too thick.
Drawings
The invention is described in detail below with reference to the drawings and the detailed description;
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the operation of the tubing construction of the present invention;
FIG. 3 is a schematic diagram of parameters of a tubing mechanism according to the present invention;
FIG. 4 is a schematic perspective view of a lower die tubing mechanism of the present invention;
Fig. 5 is a schematic perspective view of the upper die tubing mechanism of the present invention.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Referring to fig. 1-5, the hot press type die comprises an upper die panel 1, an upper die frame 2, a lower die frame 3, die legs 4, a top needle plate 5, a lower die bottom plate 6, an upper die core 7, a lower die core 8, a guide sleeve 9, a guide pillar 10, a reset return needle 11, a lower die heating hole 12, a lower die temperature sensing wire hole 13, an upper die temperature sensing wire hole 14, an upper die heating hole 15, a pipe cavity 16 formed by an A-type pipe material mechanism and a pipe cavity 17 formed by a B-type pipe material mechanism, wherein the upper die frame 2 is provided with the upper die panel 1 above, the side edge of the upper die frame is provided with the guide sleeve 9, the guide pillar 10 is slidably matched with the guide sleeve 9, the middle part of the inner side of the upper die frame is provided with the upper die core 7, the upper die core 15 is provided with the upper die temperature sensing wire hole 14, the bottom of the guide pillar 10 is connected with the reset return needle 11, the upper die frame 2 is matched with the lower die frame 3, the lower die frame 3 is provided with the upper die leg 4, the lower die core 4 is provided with the lower die core 5, the lower die core 8 is provided with the die cavity 16 formed by the pipe cavity 16, the lower die core 8 is provided with the die core 8, the upper die core 5 is provided with the die cavity 6 is connected with the lower die core 8, and the die cavity 8 is formed by the die cavity between the upper die core 5 and the lower die core 8 is provided with the die core cavity 8.
The pipe material mechanism comprises an upper die pipe material mechanism 18 and a lower die pipe material mechanism 19, and the upper die pipe material mechanism 18 and the lower die pipe material mechanism 19 are matched to form a sealed or semi-sealed die cavity.
The upper die pipe material mechanism presses downwards to form a sealed or semi-sealed pipe material cavity part before the upper die contacts the formed material of the lower die, and the raw material used for forming the die is powder or granular, so that the raw material can be managed by the pipe material mechanism and cannot run around in the process of feeding and softening. When the upper die moves downwards under the action of pressure, the pipe material mechanisms of the upper die and the lower die are contacted in advance to form a sealed or semi-sealed die cavity in the die, so that when the upper die moves downwards again, the formed material in the die can be extruded and filled into the die in an outer ring sealed or semi-sealed state until the small corners of the die cavity are filled. So as to ensure that the processed raw materials can not overflow to the outside of the die in advance to fill the cavity in the die when the upper die is pressed down during the processing and forming of the die. And under the downward pressure of the upper die, the excessive material is discharged outwards through the gap between the upper die and the lower die after the inside of the die cavity is filled with the molding raw material. So that burrs generated at the edges of the product after the excessive material overflows the cavity are not too thick.
The product ejection principle of the specific embodiment is that the ejector plate or the ejector plate ejects the product, and the feeding mode of the die is that various raw materials prepared in advance are poured or filled into a die cavity through manpower or equipment, and a feeding system on the die such as a traditional conventional plastic die, zinc alloy, aluminum alloy and the like is not used. (including the feed nozzle, the flow channel, etc.)
The molding mode of the heating soft material of the die in the specific embodiment is as follows:
1. Holes or grooves for installing electric heating pipes or wires are additionally arranged on the upper mold core and the lower mold core of the mold or the upper mold blank and the lower mold blank of the mold, and the electric heating rods or the electric heating wires are additionally arranged in the holes or the grooves to heat the cavity temperature of the mold to 30-300 ℃ so as to soften the processed material which is installed in the cavity of the mold.
2. And (3) making a cooling water path of the die on the upper and lower die cores or the upper and lower die blanks of the die according to the conventional plastic die, zinc alloy and aluminum alloy die, and connecting an oil temperature machine on the water path to circulate hot oil to heat the cavity temperature of the die to 30-200 ℃ to soften the processed material filled in the die cavity.
3. Heating plates are respectively arranged on the upper part and the lower part of a forming machine table of the die, and the temperature of a cavity of the die is heated by the heating plates to be 30-300 ℃ so as to soften the processed material filled in the cavity of the die.
4. The die is characterized in that a pipe material mechanism is additionally arranged on the parting surface of the conventional plastic die, zinc alloy die, aluminum alloy die and silicon rubber die on the basis of the original parting surface, the pipe material mechanism is shown in fig. 2 and 3, and the pipe material mechanism is realized in two modes. For convenience of description, the two pipe feeding mechanisms are divided into an A type and a B type. The implementation method of the two pipe feeding mechanisms of the A type and the B type can be divided into two types, wherein one type is realized by directly processing on the original die, and the other type is realized by adding an insert on the original die in a mode of rear connection.
Technical parameters and structural principles of the tubing mechanism of the present embodiment.
1. The technical parameters of the pipe material mechanism A are that a pipe material mechanism is made by heightening a step of 0.1mm-500mm on the parting surface of the die between 0.1mm-20mm away from the edge of the product according to different product shapes, so that a higher cavity is formed in the inner cavity of the die. The internal volume space of the heightened cavity is larger than the volume space required by the raw material to be molded, and the demolding direction of the inner wall of the pipe material mechanism is made into demolding gradient of 0-30 degrees according to different product shapes. The die closing gap of the pipe material mechanism of the upper die and the lower die is 0.01mm-2mm according to different product shapes.
2. The technical parameters of the B-type pipe material mechanism are as follows, the pipe material mechanism is made by directly heightening the edge of a product by 0.1mm-500mm according to different product shapes on the parting surface of the die, so that the inner cavity of the die forms a higher cavity. The internal volume space of the heightened cavity is larger than the volume space required by the raw material to be molded, and the demolding direction of the inner wall of the pipe material mechanism is made into demolding gradient of 0-30 degrees according to different product shapes. The die closing gap of the pipe material mechanism of the upper die and the lower die is 0.01mm-2mm according to different product shapes.
3. The forming principle of the AB two-type pipe material mechanism and the function are that 1) because the raw material used for forming by the die is powder or granular, the raw material can be managed by the pipe material mechanism in the process of feeding and softening, and the raw material cannot run out towards the periphery. 2) When the upper die moves downwards under the action of pressure during the die forming processing, the AB two-type pipe material mechanisms of the upper die and the lower die are contacted in advance to form a sealed or semi-sealed die cavity, so that when the upper die moves downwards again, the formed material in the die can be extruded and filled in the die in an outer ring sealed or semi-sealed state until the small corners in the die cavity are filled. So as to ensure that the processed raw materials can not overflow to the outside of the die in advance to fill the cavity in the die when the upper die is pressed down during the processing and forming of the die. And (3) under the downward pressure of the upper die, after the interior of the die cavity is filled with raw materials, the redundant materials are discharged outwards through the gap between the upper die and the lower die. So that burrs generated at the edges of the product after the excessive material overflows the cavity are not too thick.
The mold of the present embodiment is mounted on a machine tool (such a machine tool is often a vertical movement device), and the mold closing and opening operation is realized by a power device on the machine tool. And the mould cavity is heated to the temperature required by processing and forming through the three heating modes, the prepared formed raw materials are poured or loaded into the mould cavity after the mould is opened, and a series of actions such as mould closing, soft material, air exhaust, pressure maintaining and the like of the mould are completed through power on processing and forming equipment, so that the raw materials in the mould cavity are formed and solidified into required products, then the mould is opened, and the finished products after the processing and forming are ejected through an ejection system of the mould after the mould is opened.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111459620.8A CN114148027B (en) | 2021-12-01 | 2021-12-01 | A hot pressing mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111459620.8A CN114148027B (en) | 2021-12-01 | 2021-12-01 | A hot pressing mold |
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| Publication Number | Publication Date |
|---|---|
| CN114148027A CN114148027A (en) | 2022-03-08 |
| CN114148027B true CN114148027B (en) | 2025-02-11 |
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| CN202111459620.8A Active CN114148027B (en) | 2021-12-01 | 2021-12-01 | A hot pressing mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116985307B (en) * | 2022-04-25 | 2025-10-28 | 江苏恒神股份有限公司 | Composite material screw, forming method thereof, and mold |
| CN115230226B (en) * | 2022-07-19 | 2024-09-24 | 苏州思萃热控材料科技有限公司 | Magnetic force orientation device for preparing high-heat-conductivity material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN216579352U (en) * | 2021-12-01 | 2022-05-24 | 邓国仁 | A new type of hot pressing mold |
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| JP4336499B2 (en) * | 2003-01-09 | 2009-09-30 | Ｔｏｗａ株式会社 | Resin sealing molding method and apparatus for electronic parts |
| CN102729320B (en) * | 2012-06-14 | 2014-06-18 | 刘芳恩 | Hot pressing die and die-casting forming method |
| CN208230608U (en) * | 2018-05-04 | 2018-12-14 | 浙江安胜科技股份有限公司 | A kind of hydraulic water shutoff bulging die structure |
| CN211031108U (en) * | 2019-10-31 | 2020-07-17 | 龙南县东骏电子制品有限公司 | Heating device of bakelite injection mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN216579352U (en) * | 2021-12-01 | 2022-05-24 | 邓国仁 | A new type of hot pressing mold |
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