CN217414780U - Injection mold frame capable of ejecting front and back - Google Patents
Injection mold frame capable of ejecting front and back Download PDFInfo
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- CN217414780U CN217414780U CN202221325535.2U CN202221325535U CN217414780U CN 217414780 U CN217414780 U CN 217414780U CN 202221325535 U CN202221325535 U CN 202221325535U CN 217414780 U CN217414780 U CN 217414780U
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- rod part
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- 238000002347 injection Methods 0.000 title claims abstract description 17
- 239000007924 injection Substances 0.000 title claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000001746 injection moulding Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims 1
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The utility model provides a front-back ejection injection mold frame, which comprises a front mold assembly, a back ejection assembly, a front ejection assembly and a linkage assembly, wherein the front ejection assembly is movably arranged on the front mold assembly and is provided with a front thimble for penetrating a mold core; the linkage assembly comprises a fixing block, an elastic limiting pin, a first rod part and a second rod part, and the fixing block is fixed on the front ejection assembly; the elastic limiting pin is assembled on the fixing block and is provided with a limiting end part and a first inclined guide surface; the first rod part is fixed on the rear die assembly, and the front end of the first rod part penetrates through the fixing block and forms limit fit with the limit end part of the elastic limit pin; the second rod part is fixed on the front die assembly, the front end of the second rod part penetrates through the fixing block, and a second inclined guide surface corresponding to the first inclined guide surface is arranged on the second rod part; the product can be ejected forwards and backwards.
Description
Technical Field
The utility model relates to an injection mold field, concretely relates to ejecting die carrier of moulding plastics around.
Background
The injection mold is used for injection molding of plastic parts and generally comprises a universal mold frame and a mold core (also called a mold core) arranged in the mold frame; in the prior art, an injection mold base generally comprises a front mold assembly, a rear mold assembly and a rear ejection assembly movably arranged on the rear mold assembly; after the injection molding is finished, the front mold assembly and the rear mold assembly are separated, and the rear ejection assembly ejects a product from the rear end. However, when some products with large contact area are injected, the products can adhere to the front mold core (the front mold core is fixed on the front mold assembly), so that the product is abnormally demoulded and the yield is low.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model discloses a solve above-mentioned problem, provide ejecting die carrier of moulding plastics around, supplementary product breaks away from through addding ejecting structure on the front mould subassembly, improves the drawing of patterns qualification rate.
In order to achieve the above purpose, the utility model provides a technical scheme as follows:
an injection mold frame capable of being ejected forwards and backwards comprises a front mold component, a rear mold component and a rear ejection component movably arranged on the rear mold component; the front ejection assembly is movably arranged on the front mold assembly and is provided with a front ejector pin for penetrating the mold core; the linkage assembly comprises a fixing block, an elastic limiting pin, a first rod part and a second rod part, and the fixing block is fixed on the front ejection assembly; the elastic limiting pin is assembled on the fixing block and is provided with a limiting end part and a first inclined guide surface; the first rod part is fixed on the rear die assembly, and the front end of the first rod part penetrates through the fixing block and forms limit fit with the limit end part of the elastic limit pin; the second rod part is fixed on the front die assembly, the front end of the second rod part penetrates through the fixing block, and a second inclined guide surface corresponding to the first inclined guide surface is arranged on the second rod part.
Furthermore, a lateral sliding groove is formed in the fixing block, and the elastic limiting pin is assembled in the lateral sliding groove in a sliding mode.
Furthermore, the elastic limiting pin comprises a spring and a pin block, the limiting end part and the first inclined guide surface are both formed on the pin block, and the spring is arranged between the pin block and the fixing block and applies elasticity to the pin block so that the limiting end part is in limited fit with the front end of the first rod part.
Furthermore, the front end of the first rod part is provided with a limiting step, and the limiting end part of the elastic limiting pin is abutted against the limiting step to realize limiting matching.
Further, first opening and second opening have been seted up on the fixed block, first pole portion and second pole portion wear to locate in first opening and second opening respectively, set up on the round pin piece and correspond the second open-ended opening of stepping down to supply second pole portion to pass, first slope spigot surface is formed on the open-ended rear end face of stepping down.
Furthermore, the linkage assemblies are provided with two groups which are respectively positioned at two opposite sides of the die carrier.
Furthermore, a lateral forming slide rod is further arranged on the rear die assembly, a first end of the lateral forming slide rod is used for extending into the die core, a second end of the lateral forming slide rod extends out of the rear die assembly, and a rear end of the second rod part further extends to a second end of the corresponding lateral forming slide rod and forms inclined guide fit with the second end.
Furthermore, an inclined sliding groove is formed in the second end of the lateral forming sliding rod, a sliding block is arranged in the inclined sliding groove, and the rear end portion of the second rod portion is fixedly connected with the sliding block.
Furthermore, a limiting block is further fixed on the rear module assembly, and the rear end part of the second rod part penetrates through the limiting block.
Through the utility model provides a technical scheme has following beneficial effect:
when the mold is opened, the rear mold component moves backwards to be separated from the front mold component, and meanwhile, due to the limit of the first rod part and the elastic limit pin, the rear mold component can drive the front ejection component to move backwards together through the linkage component, so that a front ejector pin of the front ejection component can eject and separate a product from the front end; the product is normally separated from the front end, and the qualified rate of demoulding is effectively improved.
After moving backward for a certain distance, the second inclined guide surface of the second rod part is in contact fit with the first inclined guide surface of the elastic limiting pin, and the elastic limiting pin is driven to translate so that the limiting end part is separated from the first rod part, namely the front ejection assembly is separated from the rear die assembly, and subsequent demolding action is not influenced.
Drawings
FIG. 1 is a first schematic perspective view of an injection mold frame ejected back and forth in an embodiment;
FIG. 2 is a second schematic perspective view of an injection mold frame ejected back and forth in an embodiment;
FIG. 3 is a front view of an injection mold frame with back and forth ejection in an embodiment;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is an enlarged schematic view of region C of FIG. 4;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 3;
fig. 7 is an enlarged schematic view of region D in fig. 6.
Detailed Description
To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The present invention will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 7, the present embodiment provides a front-back ejection injection mold base, which includes a front mold assembly 11, a back mold assembly 12, a back ejection assembly 13, a front ejection assembly 14, and a linkage assembly 20, wherein the back ejection assembly 13 is movably disposed on the back mold assembly 12 to eject a product from a rear end.
The front ejection assembly 14 is movably disposed on the front mold assembly 11, and has a front thimble 142 for penetrating the mold core. More specifically, the front ejection assembly 14 includes a front ejector plate 141 and the front ejector 142 disposed on the front ejector plate 141. The linkage assembly 20 comprises a fixing block 21, an elastic limit pin 22, a first rod part 23 and a second rod part 24, wherein the fixing block 21 is fixed on the front ejection assembly 14, specifically on the front ejector plate 141.
The elastic limit pin 22 is assembled on the fixed block 21 and is provided with a limit end 223 and a first inclined guide surface 224; the first rod part 23 is fixed on the rear die assembly 12, and the front end of the first rod part passes through the fixing block 21 and forms limit fit with the limit end part 223 of the elastic limit pin 22. In this manner, the rear mold assembly 12 is connected by the linkage assembly 20. When the rear mold assembly 12 moves backwards and is separated from the front mold assembly 11, the front ejection assembly 14 is driven to move backwards together, so that the front ejector pins 142 of the front ejection assembly 14 can eject and separate the product from the front end; the product is normally separated from the front end, and the qualified rate of demoulding is effectively improved.
The second rod 24 is fixed on the front mold assembly 11, the front end of the second rod passes through the fixing block 21, and the second rod 24 is provided with a second inclined guide surface 241 corresponding to the first inclined guide surface 224. After the rear mold assembly 12 moves backward for a certain distance, the second inclined guide surface 241 of the second rod portion 24 contacts and cooperates with the first inclined guide surface 224 of the elastic limit pin 22, the elastic limit pin 22 is driven to translate by the continuous backward movement of the rear mold assembly 12 so that the limit end portion 223 is separated from the first rod portion 23, the limit cooperation between the front ejection assembly 14 and the rear mold assembly 12 is released, and thus, the subsequent demolding action is not affected.
The fixing block 21 is provided with a lateral sliding groove, and the elastic limit pin 22 is slidably assembled in the lateral sliding groove, so that the movable limit of the elastic limit pin 22 is realized, the structure is simple, and certainly, the matching mode of the elastic limit pin 22 and the fixing block 21 is not limited thereto in other embodiments.
The elastic limit pin 22 comprises a spring 221 and a pin block 222, the limit end 223 and the first inclined guide surface 224 are both formed on the pin block 222, the spring 221 is arranged between the pin block 222 and the fixed block 21, and applies elastic force to the pin block 222 to enable the limit end 223 to be in limit fit with the front end of the first rod part 23. And when the first inclined guide surface 224 and the second inclined guide surface 241 are in contact engagement, continued rearward movement of the rear mold assembly 12 causes the pin block 222 to translate against the force of the spring 221 to release the restraining end 223 from restraining engagement with the first stem portion 23.
Specifically, in this embodiment, the limit fitting structure of the limit end 223 and the first rod portion 23 is: the front end of the first rod part 23 is provided with a limiting step 231, and the limiting end part 223 of the elastic limiting pin 22 is abutted against the limiting step 231 to realize limiting matching, so that the structure is simple. Of course, in other embodiments, a socket may be provided at the front end of the first rod portion 23, and the limit end 223 of the elastic limit pin 22 may be inserted into the socket to achieve a limit fit.
Specifically, the fixed block 21 is provided with a first opening and a second opening, the first rod portion 23 and the second rod portion 24 are respectively inserted into the first opening and the second opening, the pin block 222 is provided with a yielding opening corresponding to the second opening for the second rod portion 24 to pass through, and the first inclined guide surface 224 is formed on the rear end surface of the yielding opening; with the arrangement, the structure is simple to assemble, and the first rod part 23 and the second rod part 24 cannot influence each other.
Specifically, in this embodiment, the linkage assemblies 20 are provided with two groups, which are respectively located at two opposite sides of the mold frame, so that the stress is more uniform and the mold frame is not easily blocked.
Further, a lateral forming slide rod 15 is further disposed on the rear mold component 12, a first end of the lateral forming slide rod 15 is used for extending into the mold core, and a second end thereof extends out of the rear mold component 12. Also, in one set of linkage assemblies 20, the rear end of the second rod portion 24 extends to and forms an angled guide fit with the second end of the corresponding laterally profiled slide bar 15. Thus, when the mold is opened, the rear mold assembly 12 moves backward, and the second rod portion 24 is stationary, so that the lateral forming slide 15 can be taken out to realize lateral demolding without additionally adding other driving or linkage structures.
Specifically, the structure of the second rod portion 24 and the inclined guide matching of the lateral forming slide rod 15 is as follows: the second end of the lateral forming slide rod 15 is provided with an inclined sliding groove 151, a sliding block 16 is arranged in the inclined sliding groove 151, and the rear end part of the second rod part 24 is fixedly connected with the sliding block 16. Of course, in other embodiments, this is not limiting.
More specifically, still be fixed with stopper 30 on the back mould subassembly 12, the rear end of second pole portion 24 is worn to locate in stopper 30, so, stopper 30 can support the rear end of second pole portion 24, prevents that the outside perk of rear end of second pole portion 24 from warping and warping.
A spring 17 is further arranged between the lateral forming sliding rod 15 and the rear die assembly 12, and the spring 17 applies an outward elastic force to the lateral forming sliding rod 15, so that the lateral forming sliding rod 15 can be assisted to move outwards to realize demoulding.
Meanwhile, a limiting groove 152 is formed in the lateral forming slide rod 15, a limiting pin 18 is fixed on the rear die assembly 12, and the limiting pin 18 is accommodated in the limiting groove 152, so that the moving range of the lateral forming slide rod 15 can be limited, and the lateral forming slide rod 15 is prevented from being separated due to excessive movement.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. An injection mold frame capable of being ejected forwards and backwards comprises a front mold component, a rear mold component and a rear ejection component movably arranged on the rear mold component; the method is characterized in that: the front ejection assembly is movably arranged on the front mold assembly and is provided with a front ejector pin for penetrating the mold core; the linkage assembly comprises a fixing block, an elastic limiting pin, a first rod part and a second rod part, and the fixing block is fixed on the front ejection assembly; the elastic limiting pin is assembled on the fixing block and is provided with a limiting end part and a first inclined guide surface; the first rod part is fixed on the rear die assembly, and the front end of the first rod part penetrates through the fixing block and forms limit fit with the limit end part of the elastic limit pin; the second rod part is fixed on the front die assembly, the front end of the second rod part penetrates through the fixing block, and a second inclined guide surface corresponding to the first inclined guide surface is arranged on the second rod part.
2. An injection molding frame capable of being ejected forward and backward according to claim 1, wherein: the fixed block is internally provided with a lateral sliding groove, and the elastic limiting pin is assembled in the lateral sliding groove in a sliding manner.
3. A front-rear ejection injection mold frame as claimed in claim 1 or 2, characterized in that: the elastic limiting pin comprises a spring and a pin block, the limiting end part and the first inclined guide surface are formed on the pin block, the spring is arranged between the pin block and the fixing block, and elasticity is applied to the pin block to enable the limiting end part to be in limiting fit with the front end of the first rod part.
4. A front-rear ejecting injection mold frame as claimed in claim 3, characterized in that: the front end of the first rod part is provided with a limiting step, and the limiting end part of the elastic limiting pin is abutted against the limiting step to realize limiting matching.
5. A front-rear ejecting injection mold frame as claimed in claim 3, characterized in that: first opening and second opening have been seted up on the fixed block, first pole portion and second pole portion wear to locate in first opening and second opening respectively, set up on the round pin piece and correspond the second open-ended opening of stepping down to supply second pole portion to pass, first slope spigot surface is formed on the open-ended rear end face of stepping down.
6. An injection molding frame capable of being ejected forward and backward according to claim 1, wherein: the linkage assembly is provided with two groups which are respectively positioned at two opposite sides of the die carrier.
7. An injection mold frame capable of being ejected forward and backward according to claim 1 or 6, wherein: the rear die assembly is further provided with a lateral forming sliding rod, the first end of the lateral forming sliding rod is used for extending into the die core, the second end of the lateral forming sliding rod extends out of the rear die assembly, and the rear end of the second rod portion further extends to the second end of the corresponding lateral forming sliding rod and forms inclined guide fit with the second end of the lateral forming sliding rod.
8. An injection molding frame capable of being ejected forward and backward according to claim 7, wherein: the second end of the lateral forming slide rod is provided with an inclined sliding groove, a sliding block is arranged in the inclined sliding groove, and the rear end part of the second rod part is fixedly connected with the sliding block.
9. A front-rear ejecting injection mold frame as claimed in claim 7, wherein: and the rear module assembly is also fixedly provided with a limiting block, and the rear end part of the second rod part penetrates through the limiting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221325535.2U CN217414780U (en) | 2022-05-30 | 2022-05-30 | Injection mold frame capable of ejecting front and back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221325535.2U CN217414780U (en) | 2022-05-30 | 2022-05-30 | Injection mold frame capable of ejecting front and back |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217414780U true CN217414780U (en) | 2022-09-13 |
Family
ID=83191465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221325535.2U Active CN217414780U (en) | 2022-05-30 | 2022-05-30 | Injection mold frame capable of ejecting front and back |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217414780U (en) |
-
2022
- 2022-05-30 CN CN202221325535.2U patent/CN217414780U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A front and rear ejection injection mold frame Effective date of registration: 20240103 Granted publication date: 20220913 Pledgee: Xiamen Jinyuan Financing Guarantee Co.,Ltd. Pledgor: FUJIAN LUNG KEE METAL PRODUCTS Co.,Ltd. Registration number: Y2023980075566 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |