CN222697829U - A precision injection mold for structural parts - Google Patents
A precision injection mold for structural parts Download PDFInfo
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- CN222697829U CN222697829U CN202421334389.9U CN202421334389U CN222697829U CN 222697829 U CN222697829 U CN 222697829U CN 202421334389 U CN202421334389 U CN 202421334389U CN 222697829 U CN222697829 U CN 222697829U
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- 238000002347 injection Methods 0.000 title claims abstract description 24
- 239000007924 injection Substances 0.000 title claims abstract description 24
- 230000000149 penetrating effect Effects 0.000 claims abstract description 12
- 238000001746 injection moulding Methods 0.000 claims description 44
- 238000003780 insertion Methods 0.000 claims description 14
- 230000037431 insertion Effects 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
本实用新型涉及注塑模具技术领域，具体是一种精密注塑结构件注塑模具，包括底座，所述底座上表面固定安装有框体，所述框体上表面固定嵌入安装有气缸，所述底座上表面固定安装有底模组件，所述底模组件包括固定安装于底座上表面的底模，所述底模上表面对称开设有贯穿底模的定位孔，所述气缸下端固定安装有安装板，所述安装板下表面固定安装有顶模组件。本实用新型中，通过将气孔和收纳槽设置在一处，减少在模腔内占用的面积，降低注塑件表面在气孔和收纳槽边缘形成飞边的面积，提高注塑件注塑质量，且在上模移动时，使推板先下移再上移，使空气先进入到模腔内部，再通过推板将注塑件移出，减少推板持续上移导致的注塑件粘连损坏的风险。
The utility model relates to the technical field of injection molds, specifically a precision injection mold for structural parts, including a base, a frame fixedly mounted on the upper surface of the base, a cylinder fixedly embedded and mounted on the upper surface of the frame, a bottom mold assembly fixedly mounted on the upper surface of the base, the bottom mold assembly including a bottom mold fixedly mounted on the upper surface of the base, positioning holes symmetrically opened on the upper surface of the bottom mold penetrating the bottom mold, a mounting plate fixedly mounted on the lower end of the cylinder, and a top mold assembly fixedly mounted on the lower surface of the mounting plate. In the utility model, by arranging the air holes and the receiving grooves in one place, the area occupied in the mold cavity is reduced, the area of burrs formed on the surface of the injection molded part at the edges of the air holes and the receiving grooves is reduced, the injection quality of the injection molded part is improved, and when the upper mold moves, the push plate is first moved down and then moved up, so that the air first enters the mold cavity, and then the injection molded part is moved out by the push plate, reducing the risk of adhesion and damage to the injection molded part caused by the continuous upward movement of the push plate.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to an injection mold for a precise injection molding structural part.
Background
When the injection molding preparation operation of the precise structural part is carried out, a corresponding rapid injection molding mold is needed, the injection molding mold is a tool for producing plastic products, and is also a tool for endowing the plastic products with complete structures and precise dimensions, the injection molding is a processing method used in mass production of parts with complex shapes, and particularly, the heated and melted plastic is injected into a mold cavity by an injection molding machine under high pressure, and after cooling and solidification, the formed product is obtained.
CN220517424U, a disclosed "an injection mold for precision structural member of electronic product", which belongs to the technical field of injection molds for precision structural members, comprises a mold base, a bottom mold, a connecting frame, a hydraulic pump and a pressing mold, wherein the top of the bottom mold is provided with a mold cavity, an inner groove body is arranged inside the bottom mold base close to the bottom mold, a movable plate is arranged inside the inner groove body in a vertical movement manner, the top of the bottom mold is provided with a pressing port in a penetrating manner at two opposite sides of the top of the bottom mold close to the opening of the mold cavity, a pressing plate is fixedly connected at the position of the pressing plate corresponding to the pressing port, the pressing plate is in fit and plug connection with the pressing port, and a spring is fixedly connected between the bottom of the movable plate and the bottom inner groove wall of the mold base;
When the injection molding device is used, certain defects still exist, air is sprayed out, gaps are further formed between the precise piece and the mold cavity, then the springs rebound to push the push plate to demould the injection molding precise piece, more areas are occupied in the mold cavity by the air holes and the clamping grooves, flash is easily formed on the edges of the air holes and the clamping grooves on the surface of the injection molding piece, the injection molding quality of the injection molding piece is reduced, the compression mold is required to be moved upwards before air is sprayed out, the movement space of the injection molding piece is ensured, the push plate is directly moved upwards after the compression mold is moved upwards, and the risk of damage caused by pulling of adhesion of the injection molding piece still exists.
Disclosure of utility model
The utility model aims to provide an injection mold for a precise injection molding structural part, which aims to solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides a precision injection molding structure injection mold, includes the base, base upper surface fixed mounting has the framework, the cylinder is installed in the fixed embedding in framework upper surface, fixed surface installs die block subassembly on the base, die block subassembly includes fixed mounting in the die block of base upper surface, the locating hole that runs through the die block is seted up to die block upper surface symmetry, cylinder lower extreme fixed mounting has the mounting panel, mounting panel lower surface fixed mounting has a top die subassembly, top die subassembly includes fixed mounting in the top die of mounting panel lower surface, top die lower surface fixed mounting has the locating lever, the mounting groove has been seted up to base upper surface, the inside activity of mounting groove is equipped with ejection of compact subassembly, ejection of compact subassembly includes the connecting plate, connecting plate upper surface symmetry fixed mounting has the push pedal, push pedal outside movable sleeve is equipped with a spring.
The positioning rod is characterized in that a clamping groove is formed in the lower surface of the positioning rod, a clamping block is movably arranged in the clamping groove, an ejector rod is fixedly arranged on the lower surface of the clamping block, a connecting groove is formed in the outer side surface of the positioning rod, a bolt is movably inserted in the connecting groove, penetrates through the clamping block, and is in screwed connection with the clamping block.
Preferably, the lower surface of the ejector rod is provided with a stepped groove, a piston rod is connected inside the stepped groove in a sliding manner, a second spring is movably sleeved outside the piston rod, an air bin is arranged on the surface of one end inside the stepped groove, a plane groove is arranged on the surface of the outer side of the ejector rod, and one end of the air bin is communicated with the plane groove.
The bottom die is characterized in that the lower surface of the inner part of the bottom die is provided with a storage groove penetrating through the bottom die, the push plate penetrates through the adjacent storage groove and is in sliding connection with the storage groove, and two ends of the first spring are fixedly connected with the bottom die and the connecting plate respectively.
Preferably, the inner surface of the storage groove is provided with an air groove, the inner side surface of the air groove is provided with an air passage, and one end of the air passage penetrates through the lower surface of the bottom die.
Preferably, a three-way pipe penetrating through the bottom die is fixedly arranged in the mounting groove, one end of the three-way pipe penetrating through the bottom die is fixedly communicated with an air pump, a first insertion pipe is fixedly arranged at the other two ends of the three-way pipe, and the first insertion pipe is movably clamped and connected with the air passage.
Preferably, the second cannula is symmetrically and fixedly embedded in the outer side surface of the three-way pipe.
Compared with the prior art, the utility model has the beneficial effects that:
Through the air pump operation, after moulding plastics, air pump is gone into gas storehouse and gas tank inside, the push pedal plugs up the gas tank this moment, the air promotes the piston rod and moves down, simultaneously the ejector module moves up, make the ejector pin move up, the ejector pin slightly separates with the injection molding, no. two intubates still communicate with the gas storehouse this moment, the piston rod moves down and pushes up the connecting plate and moves down, make the push pedal move down, expose the gas tank, pump in air from the storage tank upper end, blow to between die block and the injection molding, make both separate, when No. two intubates do not contact with the gas storehouse, the air pump stops the operation, no. one spring drives connecting plate and push pedal and moves up, it is ejecting with the injection molding, no. two springs push the piston rod, make the piston rod reset, so that use next time, thereby through setting up gas pocket and storage tank in one department, reduce the area that occupies in the die cavity, reduce the surface of injection molding forms the overlap at gas pocket and storage tank edge, improve the injection molding quality, and when the ejector pin moves down, make the push pedal move down again, make air enter into the die cavity inside earlier, again through the push pedal with the injection molding, the continuous damage risk that moves up the injection molding is led to the push pedal.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic view of the overall vertical cross-section structure of the present utility model;
FIG. 3 is a schematic view of the vertical cross-section of the discharge assembly and the carrier film portion of the present utility model;
FIG. 4 is a schematic view showing the vertical sectional structure of the positioning rod and the ejector rod portion in the present utility model;
FIG. 5 is a schematic diagram of the overall structure of the air pump and the three-way pipe in the utility model.
In the figure, 1, a base, 101, a mounting groove, 102, a frame body, 103, an air cylinder, 104, a mounting plate, 2, a bottom die assembly, 201, a bottom die, 202, a positioning hole, 203, a containing groove, 204, an air groove, 205, an air channel, 3, a top die assembly, 301, a top die, 302, a positioning rod, 303, a clamping groove, 304, a connecting groove, 305, a bolt, 306, a push rod, 307, a clamping block, 308, a step groove, 309, a plane groove, 4, a discharging assembly, 401, a connecting plate, 402, a push plate, 403, a first spring, 404, a tee pipe, 405, a first insertion pipe, 406, a second insertion pipe, 407, an air pump, 5, a piston rod, 501, a second spring, 503 and an air bin are shown.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, in an embodiment of the utility model, an injection mold for a precision injection molding structural member includes a base 1, a frame 102 is fixedly mounted on an upper surface of the base 1, a cylinder 103 is fixedly embedded in an upper surface of the frame 102, a bottom mold assembly 2 is fixedly mounted on an upper surface of the base 1, the bottom mold assembly 2 includes a bottom mold 201 fixedly mounted on an upper surface of the base 1, positioning holes 202 penetrating through the bottom mold 201 are symmetrically formed in an upper surface of the bottom mold 201, a mounting plate 104 is fixedly mounted on a lower end of the cylinder 103, a top mold assembly 3 is fixedly mounted on a lower surface of the mounting plate 104, the top mold assembly 3 includes a top mold 301 fixedly mounted on a lower surface of the mounting plate 104, a positioning rod 302 is fixedly mounted on a lower surface of the top mold 301, a mounting groove 101 is formed in an upper surface of the base 1, a discharge assembly 4 is movably arranged in the mounting groove 101, the discharge assembly 4 includes a connecting plate 401, a push plate 402 is symmetrically and fixedly mounted on an upper surface of the connecting plate 401, and a spring 403 is movably sleeved outside the push plate 402.
Specifically, by moving the top mold assembly 3 downward, the ejector rod 306 pushes the connection plate 401 downward, the push plate 402 downward, the storage groove 203 is closed for injection molding, then the air pump 407 operates, the external air is pumped into the air chamber 503, the piston rod 5 downward, the push plate 402 downward, the air enters the bottom mold 201, and the injection molded part is separated from the bottom mold 201.
Example 1
As shown in fig. 3-4, in this embodiment, a clamping groove 303 is formed on the lower surface of the positioning rod 302, a clamping block 307 is movably disposed inside the clamping groove 303, a push rod 306 is fixedly mounted on the lower surface of the clamping block 307, a connecting groove 304 is formed on the outer surface of the positioning rod 302, a bolt 305 is movably inserted inside the connecting groove 304, the bolt 305 penetrates through the clamping block 307 and is screwed with the clamping block 307, a containing groove 203 penetrating through the bottom die 201 is formed on the lower surface inside the bottom die 201, a push plate 402 penetrates through the adjacent containing groove 203 and is slidably connected with the containing groove 203, and two ends of a first spring 403 are fixedly connected with the bottom die 201 and the connecting plate 401 respectively.
In this embodiment, for convenience of description, taking the case that two ends of the first spring 403 are fixedly connected with the bottom die 201 and the connecting plate 401 respectively, the first spring 403 has a contraction function, drives the connecting plate 401 to move upwards, so that the push plate 402 always has an upward force, and is convenient for ejecting the injection molding piece, the positioning rod 302 drives the ejector rod 306 to pass through the positioning hole 202, so that the ejector rod 306 abuts against the connecting plate 401, the connecting plate 401 drives the push plate 402 to move downwards, the storage groove 203 is blocked, and injection molding is performed, at this time, one end face of the second insertion tube 406 is attached to the plane groove 309 and covers one end of the air bin 503 to be located outside the plane groove 309, and the first insertion tube 405 is inserted into the air flue 205.
In the embodiment, as shown in fig. 2-5, a stepped groove 308 is formed on the lower surface of the ejector rod 306, a piston rod 5 is slidably connected inside the stepped groove 308, a second spring 501 is movably sleeved outside the piston rod 5, an air bin 503 is formed on one end surface inside the stepped groove 308, a plane groove 309 is formed on the outer side surface of the ejector rod 306, one end of the air bin 503 is communicated with the plane groove 309, an air groove 204 is formed on the inner surface of the storage groove 203, an air channel 205 is formed on the inner side surface of the air groove 204, one end of the air channel 205 penetrates through the lower surface of the bottom mold 201, a three-way pipe 404 penetrating through the bottom mold 201 is fixedly arranged inside the mounting groove 101, one end of the three-way pipe 404 penetrating through the bottom mold 201 is fixedly communicated with an air pump 407, first insertion pipes 405 are fixedly arranged at the other two ends of the three-way pipe 404, the first insertion pipes 405 are movably clamped with the air channel 205, and the second insertion pipes 406 are symmetrically and fixedly embedded in the outer side surface of the three-way pipe 404.
In specific implementation, the air pump 407 operates to pump air into the air bin 503 and the air tank 204, at this time, the air pump 407 blocks the air tank 204, the air pushes the piston rod 5 to move downwards, meanwhile, the top die assembly 3 moves upwards, the ejector rod 306 moves upwards, the top die 301 is slightly separated from the injection molding piece, at this time, the second insertion tube 406 is still communicated with the air bin 503, the piston rod 5 moves downwards to push the connecting plate 401 to move downwards, the air tank 204 is exposed, the air is pumped from the upper end of the containing groove 203 to blow between the bottom die 201 and the injection molding piece, the air pump 407 stops operating when the second insertion tube 406 is not contacted with the air bin 503, the first spring 403 drives the connecting plate 401 and the push plate 402 to move upwards, the injection molding piece is ejected, the second spring 501 pushes the piston rod 5 to reset the piston rod 5, so that the injection molding piece is used next time, thereby reducing the occupied area of the injection molding piece in the die cavity, reducing the area of flash formed at the edge of the air hole and the containing groove 203, improving the quality of the injection molding piece, and when the top die 301 moves firstly, the push plate 402 moves downwards, the air is moved upwards to the injection molding piece is moved upwards, and then the risk of the injection molding piece is reduced, and the injection molding piece is continuously damaged by moving the injection molding piece 402.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The utility model provides a precision injection molding structure injection mold, including base (1), base (1) upper surface fixed mounting has framework (102), cylinder (103) are installed in fixed embedding in framework (102) upper surface, a serial communication port, base (1) upper surface fixed mounting has die block subassembly (2), die block subassembly (2) are including fixed mounting in die block (201) of base (1) upper surface, locating hole (202) that run through die block (201) are seted up to die block (201) upper surface symmetry, cylinder (103) lower extreme fixed mounting has mounting panel (104), mounting panel (104) lower surface fixed mounting has top die subassembly (3), top die subassembly (3) are including fixed mounting in top die (301) of mounting panel (104) lower surface, top die (301) lower surface fixed mounting has locating lever (302), mounting groove (101) have been seted up to base (1) upper surface, the inside activity of mounting groove (101) is equipped with ejection of compact subassembly (4), ejection of compact subassembly (4) include connecting plate (401), connecting plate (401) upper surface symmetry fixed mounting has push pedal (402), push pedal (402) outside movable sleeve is equipped with spring (403).
2. The injection mold for the precise injection molding structural part according to claim 1, wherein a clamping groove (303) is formed in the lower surface of the positioning rod (302), a clamping block (307) is movably arranged in the clamping groove (303), a push rod (306) is fixedly arranged on the lower surface of the clamping block (307), a connecting groove (304) is formed in the outer side surface of the positioning rod (302), a bolt (305) is movably inserted in the connecting groove (304), and the bolt (305) penetrates through the clamping block (307) and is connected with the clamping block (307) in a screwing mode.
3. The injection mold for the precise injection molding structural part according to claim 2, wherein a stepped groove (308) is formed in the lower surface of the ejector rod (306), a piston rod (5) is slidably connected in the stepped groove (308), a second spring (501) is movably sleeved outside the piston rod (5), a gas bin (503) is formed in one end surface of the inside of the stepped groove (308), a plane groove (309) is formed in the outer side surface of the ejector rod (306), and one end of the gas bin (503) is communicated with the plane groove (309).
4. The injection mold for precision injection molding structural parts according to claim 1, wherein a storage groove (203) penetrating through the bottom mold (201) is formed in the inner lower surface of the bottom mold (201), a push plate (402) penetrates through the adjacent storage groove (203) and is in sliding connection with the storage groove (203), and two ends of a first spring (403) are fixedly connected with the bottom mold (201) and the connecting plate (401) respectively.
5. The injection mold for precision injection molding structural parts according to claim 4, wherein the air groove (204) is formed in the inner surface of the accommodating groove (203), the air passage (205) is formed in the inner surface of the air groove (204), and one end of the air passage (205) penetrates through the lower surface of the bottom mold (201).
6. The injection mold for the precise injection molding structural part according to claim 5, wherein a three-way pipe (404) penetrating through the bottom mold (201) is fixedly arranged in the mounting groove (101), one end of the three-way pipe (404) penetrating through the bottom mold (201) is fixedly communicated with an air pump (407), the other two ends of the three-way pipe (404) are fixedly provided with a first insertion pipe (405), and the first insertion pipe (405) is movably clamped and connected with the air passage (205).
7. The injection mold for the precise injection molding structural part according to claim 6, wherein the second insertion pipe (406) is symmetrically and fixedly embedded in the outer side surface of the three-way pipe (404).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421334389.9U CN222697829U (en) | 2024-06-12 | 2024-06-12 | A precision injection mold for structural parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421334389.9U CN222697829U (en) | 2024-06-12 | 2024-06-12 | A precision injection mold for structural parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222697829U true CN222697829U (en) | 2025-04-01 |
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ID=95143308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421334389.9U Active CN222697829U (en) | 2024-06-12 | 2024-06-12 | A precision injection mold for structural parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222697829U (en) |
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- 2024-06-12 CN CN202421334389.9U patent/CN222697829U/en active Active
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