CN220995322U - Low burr rate injection mold - Google Patents
Low burr rate injection mold Download PDFInfo
- Publication number
- CN220995322U CN220995322U CN202322837117.2U CN202322837117U CN220995322U CN 220995322 U CN220995322 U CN 220995322U CN 202322837117 U CN202322837117 U CN 202322837117U CN 220995322 U CN220995322 U CN 220995322U
- Authority
- CN
- China
- Prior art keywords
- mold base
- die holder
- movable groove
- injection mold
- low
- Prior art date
- 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.)
- Active
Links
- 238000002347 injection Methods 0.000 title claims abstract description 31
- 239000007924 injection Substances 0.000 title claims abstract description 31
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 10
- 238000001746 injection moulding Methods 0.000 description 9
- 239000003292 glue Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000012778 molding material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 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
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a low-burr injection mold, which relates to the technical field of injection molds and comprises a lower mold plate, a lower mold base, an upper mold base and an upper mold plate which are sequentially arranged from top to bottom, wherein a cavity is formed between the lower mold base and the upper mold base, a pouring opening communicated with the cavity is formed in the upper mold base, a flow limiting mechanism is arranged on the upper mold base and comprises a movable groove which is formed in the upper mold base and is communicated with the pouring opening, a blocking block is arranged in the movable groove in a sliding manner, and a pushing mechanism for pushing the blocking block to horizontally slide towards the inside of the pouring opening is further arranged on the upper mold base.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to a low-burr injection mold.
Background
The injection mold is a tool for producing plastic products, and also a tool for endowing the plastic products with complete structures and precise dimensions, and the injection molding is a processing method used for mass production of parts with complex shapes, specifically, the injection mold is used for injecting heated and melted plastic into a mold cavity at high pressure by an injection molding machine, and cooling and solidifying are carried out to obtain the formed products.
The prior art patent (bulletin number: CN 207657094U) proposes a household appliance switch injection mold, which comprises an upper mold, a lower mold and a workbench, wherein four guide posts are fixedly connected to four corners of the upper end of the workbench, a fixing plate is fixedly connected to the top ends of the guide posts, two first lifting cylinders are fixedly connected to the lower ends of the fixing plate, a sliding plate is connected to a hydraulic rod of each first lifting cylinder, an upper mold is fixedly connected to the middle part of the lower end of each sliding plate, the working efficiency can be effectively improved, meanwhile, the sealing performance of the device is good, the product quality is improved, and in addition, molten plastics can be prevented from being cooled in an injection molding opening.
The injection mold has the following defects in use: the injection speed and flow of the pouring gate are fixed in the preparation process of the mold, the injection speed cannot be controlled in a limited manner according to different molds, excessive melted glue is extruded into the mold cavity, the mold plate can be pushed away by high pressure in the mold cavity, the melted glue overflows, more burrs are easily generated in a molded product, and therefore, the injection mold with the low burr rate is provided for solving the problems.
Disclosure of utility model
The utility model provides a low-burr injection mold, which solves the technical problems that the injection speed and flow of a gate are fixed in the preparation process of the mold, the injection speed of the mold cannot be controlled in a limited manner according to different molds, excessive melted glue is extruded into a mold cavity, a mold plate can be pushed away by high pressure in the mold cavity, the melted glue overflows, and more burrs are easy to generate in a molded product.
In order to solve the technical problems, the low-burr injection mold provided by the utility model comprises a lower mold plate, a lower mold base, an upper mold base and an upper mold plate which are sequentially arranged from top to bottom, wherein a cavity is formed between the lower mold base and the upper mold base, a pouring opening communicated with the cavity is formed in the upper mold base, a flow limiting mechanism is arranged on the upper mold base and comprises a movable groove which is formed in the upper mold base and communicated with the pouring opening, a plugging block is arranged in the movable groove in a sliding manner, and a pushing mechanism for pushing the plugging block to horizontally slide towards the inside of the pouring opening is also arranged on the upper mold base.
Further, the propelling mechanism comprises a servo motor fixedly mounted on the upper die holder and a threaded rod rotatably mounted in the movable groove, the driving end of the servo motor extends to the inside of the movable groove and is fixedly connected with a driving bevel gear, one end of the threaded rod is fixedly connected with a driven bevel gear, the driven bevel gear is in meshed connection with the driving bevel gear, a threaded sleeve is connected to the threaded rod in a threaded manner, and one end of the threaded sleeve is fixedly connected with the side wall of the plugging block.
Further, the guide way has been seted up to the diapire in movable groove, the bottom surface fixedly connected with guide block of shutoff piece, the guide block slides and sets up the inside in the guide way.
Further, the top surface of the plugging block is of an inclined surface structure, and the plugging block is made of stainless steel.
Further, the inside of upper die base is offered and is had the inclined chute with the movable groove intercommunication, inclined chute's inside slidable mounting has the baffle, one side fixed mounting of baffle has supporting spring, supporting spring keeps away from the inner top wall fixed connection of baffle and inclined chute.
Further, guide posts are arranged at four corners of the top of the lower die plate, sliding holes matched with the guide posts are formed in the lower die base and the upper die base, and the top ends of the guide posts penetrate through the sliding holes formed in the lower die base and the upper die base and are fixedly connected with the upper die plate.
Further, the top surface liftable of lower bolster is installed the liftout plate, the top surface fixed mounting of liftout plate has a plurality of thimble, the top slip of thimble extends to the bottom of die cavity.
The low-burr injection mold provided by the utility model has the following beneficial effects:
1. According to the utility model, the driving bevel gear can be driven to rotate through the servo motor, the driving bevel gear drives the driven bevel gear meshed with the driving bevel gear to rotate, the driven bevel gear drives the threaded rod to rotate, the threaded rod drives the threaded sleeve in threaded connection with the threaded rod to horizontally displace in the movable groove, the blocking block can be pushed to move towards the inside of the pouring opening in the displacement process of the movable groove, and the size of the outlet of the pouring opening is regulated through the transverse movement of the blocking block, so that the effect of regulating the glue injection speed is achieved.
2. According to the utility model, the baffle plate can be pushed to slide outwards of the inclined chute by the elasticity of the supporting spring, so that the baffle plate can be propped against the top surface of the plugging block, and injection molding materials in the pouring gate can be effectively prevented from flowing into the movable chute during injection molding, so that a good sealing effect is achieved.
Drawings
FIG. 1 is a schematic diagram of a low flash injection mold in a three-dimensional configuration;
FIG. 2 is a schematic top view of a low flash injection mold;
FIG. 3 is a schematic cross-sectional view of a low flash injection mold along section line A-A;
fig. 4 is an enlarged view of the structure at B in fig. 3.
Reference numerals in the drawings: 1. a lower template; 2. a lower die holder; 3. an upper die holder; 4. an upper template; 5. a guide post; 6. a sprue gate; 7. a liftout plate; 8. a thimble; 9. a cavity; 10. a movable groove; 11. a block; 12. an inclined chute; 13. a baffle; 14. a support spring; 15. a servo motor; 16. a drive bevel gear; 17. a threaded rod; 18. a driven bevel gear; 19. and (5) a threaded sleeve.
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.
Example 1
As shown in fig. 1-4, the injection mold with low burr rate comprises a lower mold plate 1, a lower mold base 2, an upper mold base 3 and an upper mold plate 4 which are sequentially arranged from top to bottom, a cavity 9 is formed between the lower mold base 2 and the upper mold base 3, a pouring opening 6 communicated with the cavity 9 is formed on the upper mold base 3, a flow limiting mechanism is arranged on the upper mold base 3, the flow limiting mechanism comprises a movable groove 10 which is formed on the upper mold base 3 and is communicated with the pouring opening 6, a blocking block 11 is arranged in the movable groove 10 in a sliding manner, and a pushing mechanism for pushing the blocking block 11 to horizontally slide towards the inside of the pouring opening 6 is also arranged on the upper mold base 3;
The propelling mechanism comprises a servo motor 15 fixedly arranged on the upper die holder 3 and a threaded rod 17 rotatably arranged in the movable groove 10, wherein the driving end of the servo motor 15 extends into the movable groove 10 and is fixedly connected with a driving bevel gear 16, one end of the threaded rod 17 is fixedly connected with a driven bevel gear 18, the driven bevel gear 18 is in meshed connection with the driving bevel gear 16, the threaded rod 17 is in threaded connection with a threaded sleeve 19, and one end of the threaded sleeve 19 is fixedly connected with the side wall of the plugging block 11;
In specific implementation, the driving bevel gear 16 can be driven to rotate through the servo motor 15, the driving bevel gear 16 drives the driven bevel gear 18 meshed with the driving bevel gear 16 to rotate, the driven bevel gear 18 drives the threaded rod 17 to rotate, the threaded rod 17 drives the threaded sleeve 19 in threaded connection with the threaded rod 17 to horizontally displace inside the movable groove 10, the movable groove 10 can push the blocking block 11 to move towards the inside of the pouring opening 6 in the displacement process, and the size of the outlet of the pouring opening 6 is adjusted through the lateral movement of the blocking block 11, so that the effect of adjusting the glue injection speed is achieved.
In addition, in order to limit and guide the horizontal sliding of the plugging block 11, a guide groove is formed in the bottom wall of the movable groove 10, a guide block is fixedly connected to the bottom surface of the plugging block 11, and the guide block is slidably arranged in the guide groove.
In addition, in order to avoid injection molding material remaining on the top surface of the plugging block 11 during injection molding, the top surface of the plugging block 11 is of an inclined surface structure, and the plugging block 11 is made of stainless steel.
Example two
As shown in fig. 1-4, on the basis of the first embodiment, an inclined chute 12 communicated with a movable slot 10 is formed in the upper die holder 3, a baffle 13 is slidably mounted in the inclined chute 12, a supporting spring 14 is fixedly mounted on one side of the baffle 13, and one end, far away from the baffle 13, of the supporting spring 14 is fixedly connected with the inner top wall of the inclined chute 12;
In specific implementation, the baffle 13 can be pushed to slide towards the outside of the inclined chute 12 by the elastic force of the supporting spring 14, so that the baffle 13 can be propped against the top surface of the plugging block 11, and injection molding materials in the pouring gate 6 can be effectively prevented from flowing into the movable chute 10 during injection molding, so that a good sealing effect is achieved.
In addition, in order to guide die holder 2 and upper die holder 3 when the compound die, guide post 5 is all installed to lower bolster 1 top four corners department, has all seted up the slide opening with guide post 5 looks adaptation on die holder 2 and the upper die holder 3, and the slide opening of seting up on die holder 2 and upper die holder 3 is passed through on the top of guide post 5 and is connected with upper die plate 4 fixed.
The top surface of the lower template 1 is provided with a liftout plate 7 in a lifting manner, the top surface of the liftout plate 7 is fixedly provided with a plurality of ejector pins 8, and the top ends of the ejector pins 8 extend to the bottom end of a cavity 9 in a sliding manner;
during the concrete implementation, the ejector plate 7 and the ejector pin 8 are matched to eject the product formed in the cavity 9, so that the product can be conveniently ejected.
Working principle: the driving bevel gear 16 can be driven to rotate through the servo motor 15, the driving bevel gear 16 drives the driven bevel gear 18 meshed with the driving bevel gear 16 to rotate, the driven bevel gear 18 drives the threaded rod 17 to rotate, the threaded rod 17 drives the threaded sleeve 19 which is in threaded connection with the threaded rod to horizontally displace inside the movable groove 10, the blocking block 11 can be pushed to move towards the inside of the pouring opening 6 in the process of displacing the movable groove 10, and the size of the outlet of the pouring opening 6 is adjusted through the lateral movement of the blocking block 11, so that the effect of adjusting the glue injecting speed is achieved.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a low burr rate injection mold, includes lower bolster (1), die holder (2), upper die holder (3) and cope match-plate pattern (4) that set gradually from top to bottom, the shaping has die cavity (9) between die holder (2) and the upper die holder (3), set up pouring gate (6) with die cavity (9) intercommunication on upper die holder (3), a serial communication port, be provided with current-limiting mechanism on upper die holder (3), current-limiting mechanism is including seting up on upper die holder (3) and with movable groove (10) of pouring gate (6) intercommunication, the inside slip of movable groove (10) is provided with shutoff piece (11), still be provided with on upper die holder (3) and be used for promoting shutoff piece (11) to pouring gate (6) inside horizontally sliding's advancing mechanism.
2. The low-burr injection mold according to claim 1, wherein the pushing mechanism comprises a servo motor (15) fixedly installed on an upper mold base (3) and a threaded rod (17) rotatably installed inside the movable groove (10), the driving end of the servo motor (15) extends to the inside of the movable groove (10) and is fixedly connected with a driving bevel gear (16), one end of the threaded rod (17) is fixedly connected with a driven bevel gear (18), the driven bevel gear (18) is in meshed connection with the driving bevel gear (16), a threaded sleeve (19) is connected to the threaded rod (17) in a threaded mode, and one end of the threaded sleeve (19) is fixedly connected with the side wall of the plugging block (11).
3. The low-burr injection mold according to claim 2, wherein the bottom wall of the movable groove (10) is provided with a guide groove, the bottom surface of the plugging block (11) is fixedly connected with a guide block, and the guide block is slidably arranged in the guide groove.
4. The low-burr injection mold of claim 1, wherein the top surface of the plugging block (11) is of an inclined surface structure, and the plugging block (11) is made of stainless steel.
5. The low-burr injection mold according to claim 1, wherein a diagonal chute (12) communicated with the movable groove (10) is formed in the upper mold base (3), a baffle plate (13) is slidably mounted in the diagonal chute (12), a supporting spring (14) is fixedly mounted on one side of the baffle plate (13), and one end, far away from the baffle plate (13), of the supporting spring (14) is fixedly connected with the inner top wall of the diagonal chute (12).
6. The low-burr injection mold according to claim 1, wherein guide posts (5) are installed at four corners of the top of the lower mold plate (1), sliding holes matched with the guide posts (5) are formed in the lower mold base (2) and the upper mold base (3), and the top ends of the guide posts (5) penetrate through the sliding holes formed in the lower mold base (2) and the upper mold base (3) and are fixedly connected with the upper mold plate (4).
7. The low-burr injection mold according to claim 1, wherein a top surface of the lower mold plate (1) is provided with a liftout plate (7) in a liftable manner, a plurality of ejector pins (8) are fixedly arranged on the top surface of the liftout plate (7), and the top ends of the ejector pins (8) extend to the bottom end of the cavity (9) in a sliding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322837117.2U CN220995322U (en) | 2023-10-23 | 2023-10-23 | Low burr rate injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322837117.2U CN220995322U (en) | 2023-10-23 | 2023-10-23 | Low burr rate injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220995322U true CN220995322U (en) | 2024-05-24 |
Family
ID=91117008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322837117.2U Active CN220995322U (en) | 2023-10-23 | 2023-10-23 | Low burr rate injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220995322U (en) |
-
2023
- 2023-10-23 CN CN202322837117.2U patent/CN220995322U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211591158U (en) | Internal core-pulling injection mold with adjustable core-pulling distance | |
| CN211105275U (en) | Novel automobile injection mold with high demolding speed | |
| CN112356395A (en) | Injection mold with limit structure | |
| CN220995322U (en) | Low burr rate injection mold | |
| CN214026968U (en) | Injection mold with automatic cutout mechanism | |
| CN112172058B (en) | Intelligent injection molding device for fireproof window frame of window | |
| CN212072777U (en) | Novel injection mold | |
| CN212603094U (en) | Novel combined injection mold | |
| CN212498659U (en) | High-efficient combined type injection mold | |
| CN210011242U (en) | LED lamp lampshade mould | |
| CN111873331A (en) | Multi-runner injection mold | |
| CN208100937U (en) | A kind of injection mold with ramp-roof structure | |
| CN206614748U (en) | A kind of catenating slider mechanism mould | |
| CN216001278U (en) | Forming die of high temperature resistant earphone shell | |
| CN216683121U (en) | A mould for producing plastic toy | |
| CN220219535U (en) | Storage barrel pedal die | |
| CN219325478U (en) | Die for reducing flash of rubber product | |
| CN212072776U (en) | Injection mold | |
| CN220576469U (en) | Through-flow injection molding plastic part integrated forming equipment | |
| CN219522890U (en) | Injection mold for automobile front lampshade | |
| CN215434871U (en) | Rapid forming die with anti-deviation function | |
| CN218366116U (en) | Injection molding machine convenient to change injection mold board | |
| CN219360175U (en) | Rotary core-pulling type injection mold | |
| CN219153646U (en) | Plastic extrusion die capable of being rapidly molded | |
| CN220638801U (en) | High-efficiency energy-saving plastic injection molding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |