CN220331853U - Uniform stress mechanism and die compression molding device - Google Patents
Uniform stress mechanism and die compression molding device Download PDFInfo
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- CN220331853U CN220331853U CN202321833835.6U CN202321833835U CN220331853U CN 220331853 U CN220331853 U CN 220331853U CN 202321833835 U CN202321833835 U CN 202321833835U CN 220331853 U CN220331853 U CN 220331853U
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- die
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- uniform stress
- bottom plate
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- 230000007246 mechanism Effects 0.000 title claims abstract description 18
- 238000000748 compression moulding Methods 0.000 title claims abstract description 17
- 230000003068 static effect Effects 0.000 claims abstract description 23
- 230000002457 bidirectional effect Effects 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 9
- 239000002994 raw material Substances 0.000 abstract description 9
- 238000001746 injection moulding Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 3
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 239000012943 hotmelt Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The utility model relates to the technical field of mold processing, in particular to a uniform stress mechanism and a mold compression molding device. The device comprises a processing table, a top plate, an air cylinder, a movable die, a static die and a uniform stress mechanism, wherein the processing table is connected with the top plate through a connecting column, the air cylinder is installed on the top plate, the output end of the air cylinder penetrates through the top plate to be connected with the movable die, the static die is arranged below the movable die, the static die is installed on the processing table through a support column, and the uniform stress mechanism is arranged at the bottom of the static die. According to the utility model, the mold core bottom plate is arranged on the inner side of the cavity in a sliding manner through the cooperation of the limiting connecting rod, the sliding sleeve and the sliding rod, and the supporting plate can be driven to change angles through the cooperation of the pushing component and the linkage component, so that the top end of the supporting plate pushes the mold core bottom plate upwards from four corners of the bottom of the mold core bottom plate, and in the pushing process, the upper end of the mold core bottom plate extrudes injection molding raw materials in the cavity, so that the raw materials are compressed and molded, the uniform stress of the mold core bottom plate is realized, and the stability of product quality is ensured.
Description
Technical Field
The utility model relates to the technical field of mold processing, in particular to a uniform stress mechanism and a mold compression molding device.
Background
Injection compression molding is an advanced form of conventional injection molding that increases the ratio of the flow length to the wall thickness of the injection molded part; less mold locking force and injection pressure are adopted; reducing internal stress of the material; and improving the processing productivity, wherein the injection compression molding of the optical lens is a process of injecting a molten plastic raw material into a mold cavity and compressing and solidifying at a certain temperature and pressure.
The Chinese patent with the publication number of CN209552388U discloses an injection compression molding die, which can be subjected to secondary compression molding through the cooperation of a movable die, a lower push plate, an upper push plate and a die core bottom plate, and meets the precision of injection compression molding.
However, the above-mentioned forming device still has a certain problem, and by obliquely arranging an upper push plate and a lower push plate on the left side and the right side below the mold core bottom plate, the mold core bottom plate is extruded from the two sides by utilizing the upper push plate and the lower push plate, and the pushing force applied to the mold core bottom plate in the extrusion process is uneven, so that the inside of the mold core bottom plate is easily severely worn and seriously affects the service life and the effect of the mold.
Disclosure of Invention
Aiming at the problems in the background technology, a uniform stress mechanism and a die compression molding device are provided. The die core bottom plate is arranged on the inner side of the die cavity in a sliding manner through the matching of the limiting connecting rod, the sliding sleeve and the sliding rod, and the supporting plate can be driven to change angles by utilizing the matching of the pushing assembly and the linkage assembly, so that the top end of the supporting plate is pushed upwards from four corners of the bottom of the die core bottom plate, uniform stress of the die core bottom plate is realized, and the stability of product quality is ensured.
The utility model provides a uniform stress mechanism which comprises a limit connecting rod, a slide rod, a mold core bottom plate, a pushing assembly positioned below the mold core bottom plate and a linkage assembly for driving the pushing assembly to operate.
The limiting connecting rod is provided with four groups, installs respectively in four corners of mold core bottom plate bottom, and inlays on the limiting connecting rod and be equipped with the sliding sleeve, and the middle part sliding connection of sliding sleeve has the slide bar.
The pushing assembly comprises two vertical plates, two bidirectional screw rods, nut pairs and a supporting plate, wherein the two vertical plates and the two bidirectional screw rods are respectively provided with two groups, the two groups of bidirectional screw rods are rotatably arranged between the two vertical plates, the two nut pairs are connected to the two bidirectional screw rods in a threaded manner, and the supporting plate is rotatably arranged between the nut pairs and the limiting connecting rod.
Preferably, the linkage assembly comprises a driving motor, a conveyor belt and two belt pulleys, wherein the driving motor is arranged on the outer side of one of the vertical plates, the outer side of the other vertical plate is rotatably provided with the two belt pulleys, a main shaft of each of the two belt pulleys is respectively connected with two bidirectional screw rods, and the conveyor belt is arranged between the two belt pulleys in a transmission way.
The utility model also provides a die compression molding device which is provided with the uniform stress mechanism, and the uniform stress mechanism comprises a processing table, a top plate, an air cylinder, a movable die and a static die, wherein the processing table is connected with the top plate through a connecting column, the air cylinder is arranged on the top plate, the output end of the air cylinder penetrates through the top plate to be connected with the movable die, the static die is arranged below the movable die, the static die is arranged on the processing table through a support column, and the uniform stress mechanism is arranged at the bottom of the static die.
Preferably, the opposite sides of the movable mould and the static mould are respectively provided with a mould groove, the two mould grooves are matched to form a cavity, the movable mould is provided with a pouring channel communicated with the cavity, and one end of the pouring channel is provided with a drainage groove.
Preferably, the mold core bottom plate is arranged in the cavity, the sliding rod below the mold core bottom plate is connected with the static mold, and the bottom end of the sliding rod is provided with an anti-falling block.
Preferably, two self-adaptive telescopic guide rods are arranged at the bottom of the top plate, and the telescopic ends of the two self-adaptive telescopic guide rods are connected with the movable mould.
Compared with the prior art, the utility model has the following beneficial technical effects: the die core bottom plate is arranged on the inner side of the die cavity in a sliding manner through the cooperation of the limiting connecting rod, the sliding sleeve and the sliding rod, the supporting plate can be driven to perform angle transformation by utilizing the cooperation of the pushing assembly and the linkage assembly, the top end of the supporting plate is pushed upwards from four corners of the bottom of the die core bottom plate, in the pushing process, the upper end of the die core bottom plate extrudes injection molding raw materials in the die cavity, the raw materials are compressed and molded, the uniform stress of the die core bottom plate is integrally realized, the stability of product quality is ensured, the local abrasion of the die due to uneven stress is reduced, and the service life of the die is prolonged.
Drawings
FIG. 1 is a schematic diagram of a compression molding apparatus of a mold according to the present utility model;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
fig. 3 is a schematic view of the partial top view structure of fig. 1.
Reference numerals: 1. a processing table; 2. a top plate; 3. a cylinder; 4. a movable mold; 5. static mold; 6. a pushing assembly; 601. a vertical plate; 602. a bidirectional screw; 603. a nut pair; 604. a support plate; 7. a linkage assembly; 701. a driving motor; 702. a conveyor belt; 703. a belt wheel; 8. a limit connecting rod; 9. a slide bar; 10. a mold core bottom plate; 11. a sliding sleeve; 12. a cavity; 13. pouring gate; 14. drainage grooves; 15. an anti-falling block; 16. and (5) a self-adaptive telescopic guide rod.
Detailed Description
Example 1
As shown in fig. 1-3, the die compression molding device provided by the utility model comprises a processing table 1, a top plate 2, an air cylinder 3, a movable die 4, a static die 5 and a uniform stress mechanism, wherein the processing table 1 is connected with the top plate 2 through a connecting column, the air cylinder 3 is arranged on the top plate 2, the output end of the air cylinder 3 penetrates through the top plate 2 to be connected with the movable die 4, the static die 5 is arranged below the movable die 4, the static die 5 is arranged on the processing table 1 through a support column, and the uniform stress mechanism is arranged at the bottom of the static die 5.
The uniform stress mechanism comprises a limit connecting rod 8, a slide rod 9, a mold core bottom plate 10, a pushing assembly 6 positioned below the mold core bottom plate and a linkage assembly 7 for driving the pushing assembly 6 to operate, wherein the limit connecting rod 8 is provided with four groups, the four groups of the limit connecting rods are respectively arranged at four corners of the bottom of the mold core bottom plate 10, a sliding sleeve 11 is embedded on the limit connecting rod 8, and the middle part of the sliding sleeve 11 is in sliding connection with the slide rod 9;
the pushing assembly 6 comprises a vertical plate 601, two-way screws 602, nut pairs 603 and a supporting plate 604, wherein the vertical plate 601 and the two-way screws 602 are respectively provided with two groups, the two groups of two-way screws 602 are rotatably arranged between the two vertical plates 601, the two nut pairs 603 are connected with the two-way screws 602 through threads, and the supporting plate 604 is rotatably arranged between the nut pairs 603 and the limiting connecting rod 8.
Further, the opposite sides of the movable mould 4 and the static mould 5 are provided with mould grooves, the two mould grooves are matched to form a cavity 12, the movable mould 4 is provided with a runner 13 communicated with the cavity 12, one end of the runner 13 is provided with a drainage groove 14, after the static mould 5 and the movable mould 4 are matched to form the cavity 12, the injection molding device injects hot melt raw materials into the runner 13, the runner 13 conveys the hot melt raw materials into the drainage groove 14, the drainage groove 14 guides the hot melt raw materials passing through the runner 13 into the cavity 12, and the runner 13 is closed in the compression process.
Further, the mold core bottom plate 10 is arranged in the cavity 12, the slide bar 9 below the mold core bottom plate is connected with the static mold 5, and the bottom end of the slide bar 9 is provided with an anti-falling block 15.
Further, two self-adaptive telescopic guide rods 16 are arranged at the bottom of the top plate 2, telescopic ends of the two self-adaptive telescopic guide rods 16 are connected with the movable die 4, and the movement track of the movable die 4 is limited by the self-adaptive telescopic guide rods 16, so that the movement stability of the movable die is ensured.
The working principle of the utility model is as follows: when the injection molding device is used, the movable mold 4 is driven to stably descend under the guiding action of the self-adaptive telescopic guide rod 16, the movable mold is matched with the static mold 5 in the descending process, the injection molding device is used for injecting hot melt raw materials from the pouring channel 13 to the inside of the cavity 12, after injection molding is completed, the two bidirectional screws 602 are driven to rotate through the linkage assembly 7, the two bidirectional screws 602 are driven to move towards two ends in the rotating process, the four nut pairs 603 move one ends of the supporting plates 604 in the moving process, the other ends of the four supporting plates 604 simultaneously and adaptively change angles to play an upward pushing role on the mold core bottom plate 10, and the mold core bottom plate 10 stably moves upwards under the action of the limiting connecting rods 8, the sliding rods 9 and the sliding sleeves 11 to compress and mold molten polymers in the mold cavity 12.
Example two
As shown in fig. 3, the present embodiment discloses a specific structure of a linkage assembly 7 in detail based on the above embodiment, which includes a driving motor 701, a conveyor belt 702 and two belt pulleys 703, wherein the driving motor 701 is installed at the outer side of one of the vertical plates 601, two belt pulleys 703 are rotatably provided at the outer side of the other vertical plate 601, main shafts of the two belt pulleys 703 are respectively connected with two bidirectional screws 602, and the conveyor belt 702 is arranged between the two belt pulleys 703 in a transmission manner.
In this embodiment, during the use, drive one of them bi-directional screw 602 through driving motor 701 and rotate, the pulley 703 of its tip is driven to rotate to bi-directional screw 602 rotation in-process, and pulley 703 rotates the in-process and drives another pulley 703 through conveyer belt 702 and rotate in step, and then drives another bi-directional screw 602 and rotate, has guaranteed that the rotational speed of both keeps unanimous, has effectively reduced the electric power consumption cost in the course of working simultaneously.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.
Claims (6)
1. The uniform stress mechanism is characterized by comprising a limit connecting rod (8), a slide rod (9), a mold core bottom plate (10), a pushing component (6) positioned below the limit connecting rod and the slide rod, and a linkage component (7) for driving the pushing component (6) to operate;
the limiting connecting rods (8) are provided with four groups, the four groups of limiting connecting rods are respectively arranged at four corners of the bottom of the mold core bottom plate (10), sliding sleeves (11) are embedded on the limiting connecting rods (8), and the middle parts of the sliding sleeves (11) are connected with sliding rods (9) in a sliding manner;
the pushing assembly (6) comprises a vertical plate (601), two bidirectional screw rods (602), nut pairs (603) and a supporting plate (604), wherein the vertical plate (601) and the bidirectional screw rods (602) are respectively provided with two groups, the two groups of the bidirectional screw rods (602) are rotatably arranged between the two vertical plates (601), the two nut pairs (603) are connected to the bidirectional screw rods (602) in a threaded mode, and the supporting plate (604) is rotatably arranged between the nut pairs (603) and the limiting connecting rod (8).
2. The uniform stress mechanism according to claim 1, wherein the linkage assembly (7) comprises a driving motor (701), a conveyor belt (702) and two pulleys (703), the driving motor (701) is arranged on the outer side of one of the vertical plates (601), the two pulleys (703) are rotatably arranged on the outer side of the other vertical plate (601), the main shafts of the two pulleys (703) are respectively connected with the two bidirectional screws (602), and the conveyor belt (702) is arranged between the two pulleys (703) in a transmission manner.
3. A die compression molding device, which is provided with the uniform stress mechanism according to any one of claims 1-2, and is characterized by comprising a processing table (1), a top plate (2), an air cylinder (3), a movable die (4) and a static die (5), wherein the processing table (1) is connected with the top plate (2) through a connecting column, the air cylinder (3) is installed on the top plate (2), the output end of the air cylinder (3) penetrates through the top plate (2) to be connected with the movable die (4), the static die (5) is arranged below the movable die (4), the static die (5) is installed on the processing table (1) through a support column, and the uniform stress mechanism is arranged at the bottom of the static die (5).
4. A compression molding device for a mold according to claim 3, wherein the movable mold (4) and the stationary mold (5) are provided with mold cavities on opposite sides thereof, the two mold cavities are matched to form a cavity (12), the movable mold (4) is provided with a runner (13) communicated with the cavity (12), and one end of the runner (13) is provided with a drainage groove (14).
5. The compression molding device for a mold according to claim 4, wherein the mold core bottom plate (10) is disposed in the cavity (12), a slide bar (9) below the mold core bottom plate is connected with the stationary mold (5), and an anti-falling block (15) is disposed at the bottom end of the slide bar (9).
6. A die compression molding apparatus according to claim 3, wherein two adaptive telescopic guide rods (16) are mounted at the bottom of the top plate (2), and telescopic ends of the two adaptive telescopic guide rods (16) are connected with the movable die (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321833835.6U CN220331853U (en) | 2023-07-12 | 2023-07-12 | Uniform stress mechanism and die compression molding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321833835.6U CN220331853U (en) | 2023-07-12 | 2023-07-12 | Uniform stress mechanism and die compression molding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220331853U true CN220331853U (en) | 2024-01-12 |
Family
ID=89458344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321833835.6U Active CN220331853U (en) | 2023-07-12 | 2023-07-12 | Uniform stress mechanism and die compression molding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220331853U (en) |
-
2023
- 2023-07-12 CN CN202321833835.6U patent/CN220331853U/en active Active
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