CN219947140U - Ejector plate ejection return structure - Google Patents
Ejector plate ejection return structure Download PDFInfo
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- CN219947140U CN219947140U CN202321417341.XU CN202321417341U CN219947140U CN 219947140 U CN219947140 U CN 219947140U CN 202321417341 U CN202321417341 U CN 202321417341U CN 219947140 U CN219947140 U CN 219947140U
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- injection molding
- molding machine
- pull rod
- ejector
- ejector plate
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- 238000001746 injection moulding Methods 0.000 claims abstract description 44
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000011324 bead Substances 0.000 description 5
- 210000003739 neck Anatomy 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to a structure application technology in the mechanical industry, in particular to an ejector plate ejection return structure applied to an injection mold of an injection molding machine. The injection molding machine comprises a horizontal injection mold arranged on the injection molding machine, wherein an ejector plate is arranged in the horizontal injection mold, a power mechanism for ejecting and returning the ejector plate is arranged on the injection molding machine, the power mechanism is connected with an injection molding machine pull rod, and an ejector rod which is mutually buckled with the injection molding machine pull rod is connected in the vertical direction of the ejector plate. The ejector rod of the die is fastened on the ejector plate of the die through a screw rod. After the die is installed on the injection molding machine, the pull rod connected with the power mechanism of the injection molding machine is tightly matched with the ejector rod of the die for buckling. The power of the injection molding machine acts on the pull rod of the injection molding machine to realize the ejection and return of the ejector plate of the mold. The utility model uses the drag hook structure to enable the ejector pin plate of the die to be ejected out accurately, return accurately, and is safe and reliable.
Description
Technical Field
The utility model relates to a structure application technology in the mechanical industry, in particular to an ejector plate ejection return structure applied to an injection mold of an injection molding machine.
Background
Injection molding is also called injection molding, which is a molding method of injection and molding; the injection molding method has the advantages of high production speed, high efficiency, automation in operation, multiple patterns, various shapes, large size, accurate product size, easy updating of the product, and capability of forming the product with complex shape, and is suitable for the field of mass production, the product with complex shape and other molding processing. Injection molding of plastic parts is realized through injection molds, and various injection mold structures exist in the prior art. For an injection mold, the ejector plate is driven by spring reset elastic force to realize ejection return; for the structure of the spring-driven ejector plate ejection return, the structure has the defect of poor stability and reliability, such as failure risk of the spring ejection return.
The ejector plate ejection return structure of the injection mold in the prior art comprises an ejector bottom plate and an ejector plate, wherein a flange rod sleeve is arranged at the lower end side of the ejector bottom plate, the flange rod sleeve comprises an annular sleeve part and a flange part, and the flange part is screwed and fastened on the lower surface of the ejector bottom plate; the core part of the flange rod sleeve is provided with a sleeve hole which penetrates through the flange rod sleeve completely up and down, the outer circumferential surface of the annular sleeve part is provided with at least three internal threaded holes, each internal threaded hole is respectively provided with a wave bead screw in a threaded manner, and the wave beads of each wave bead screw are respectively protruded out of the inner wall of the sleeve hole; the ejector plate ejection return structure applied to the injection mold further comprises a demolding ejector rod, wherein the upper end part of the demolding ejector rod is provided with an ejector rod annular groove; when the injection mold is demolded, the upper end part of the demolding ejector rod is inserted into the sleeve hole of the flange rod sleeve, and the wave beads of each wave bead screw are respectively embedded into the ejector rod annular groove of the demolding ejector rod. However, due to the limitation of the sleeve-type structure of the flange, the stress points of the ejection and ejection return of the ejector plate of the die are the ball screws, and the ball screws are easy to pull and break, so that the die fails. The structure has higher precision requirement and difficult machining; when the die is installed on the injection molding machine, the positioning requirement of the structure is high, the hole installation is difficult, and the disassembly and assembly difficulty is high.
Disclosure of Invention
Aiming at the technical problems, the technology breaks through the ejection and ejection return mechanisms of the conventional plastic mold ejector plate and adopts a drag hook type ejector plate ejection return structure.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the ejector plate ejection return structure comprises a horizontal injection mold arranged on an injection molding machine, wherein an ejector plate is arranged in the horizontal injection mold, a power mechanism for ejecting the ejector plate to return is arranged on the injection molding machine, the power mechanism is connected with an injection molding machine pull rod, and an ejector rod which is mutually buckled with the injection molding machine pull rod is connected in the vertical direction of the ejector plate.
Further: in the ejector pin plate ejection return structure, the ejector pin comprises a large truncated cone-shaped mounting end and a small cylindrical connecting end, and the mounting end and the connecting end are connected according to a coaxial circle center and are integrally formed.
The end of the connecting end is provided with a large tile-shaped inner pit and a small tile-shaped inner pit which are connected together.
Screw holes are uniformly distributed on the side edge of the round table at the mounting end, screw rods are arranged in the screw holes, and the mounting end is connected with the thimble plate through the screw rods.
The longitudinal section of the pull rod is in a shape like a Chinese character 'Tu', and a pull rod clamping end for filling the large tile-shaped inner pit and a pull rod clamping neck for filling the small tile-shaped inner pit are sequentially arranged at the top of the pull rod. The pull rod also comprises a screw rod end connected with the power mechanism.
Compared with the prior art, the ejector plate ejection return structure comprises a horizontal injection mold arranged on an injection molding machine, wherein an ejector plate is arranged in the horizontal injection mold, a power mechanism for ejecting and returning the ejector plate is arranged on the injection molding machine, the power mechanism is connected with an injection molding machine pull rod, and an ejector rod mutually buckled with the injection molding machine pull rod is connected in the vertical direction of the ejector plate. The ejector rod of the die is fastened on the ejector plate of the die through screws. After the die is installed on the injection molding machine, the pull rod connected with the power mechanism of the injection molding machine is tightly matched with the ejector rod of the die for buckling. The power of the injection molding machine acts on the pull rod of the injection molding machine to realize the ejection and return of the ejector plate of the mold. The utility model has the following technical effects:
1. the buckle type structure has high stress intensity, and the stress is surface contact;
2. the structure is simple to process and the precision is easy to control;
3. the mold is installed in a sliding mode, so that the mold is very simple to assemble and disassemble when installed on the injection molding machine, and the operation time is saved;
4. the use process is very stable, the damage is not easy, and the production stability and reliability are strong;
5. the structure has wide application range and can be suitable for plastic mould structures with all sizes.
Drawings
FIG. 1 is a schematic view of the slit structure of the present utility model;
FIG. 2 is an enlarged schematic view of the ejector pin structure;
FIG. 3 is an enlarged schematic view of the structure of a tie rod of the injection molding machine;
wherein, 1 ejector pin board, 2 injection molding machine pull rod, 3 ejector pin, 4 installation end, 5 link, 6 big tile shape interior pit, 7 little tile shape interior pit, 8 screw, 9 pull rod card ends, 10 pull rod card necks, 11 screw rod ends.
Detailed Description
The present utility model will be described in further detail below with reference to the drawings and examples for the understanding of those skilled in the art.
Embodiment one referring to fig. 1-3: the ejector plate ejection return structure comprises a horizontal injection mold arranged on an injection molding machine, wherein an ejector plate 1 is arranged in the horizontal injection mold, a power mechanism for ejector plate ejection return is arranged on the injection molding machine, the power mechanism is connected with an injection molding machine pull rod 2, and an ejector rod 3 which is mutually buckled with the injection molding machine pull rod 2 is connected in the vertical direction of the ejector plate 1. The ejector rod 3 comprises a large truncated cone-shaped mounting end 4 and a small cylindrical connecting end 5, and the mounting end 4 and the connecting end 5 are connected according to a coaxial circle center and are integrally formed. The end of the connecting end is provided with a large tile-shaped inner pit 6 and a small tile-shaped inner pit 7 which are connected together. Screw holes 8 are uniformly distributed on the side edge of the round table at the mounting end, screw rods are arranged in the screw holes, and the mounting end is connected with the thimble plate through the screw rods. The longitudinal section of the pull rod 2 is in a shape like a Chinese character 'tu', a pull rod clamping end 9 for filling the large tile-shaped inner pit 6 and a pull rod clamping neck 10 for filling the small tile-shaped inner pit 7 are sequentially arranged at the top of the pull rod, and the pull rod further comprises a screw rod end 11 connected with a power mechanism.
The longitudinal section of the draw bar 2 of the injection molding machine is in a shape of soil, and a draw bar clamping end 9 for filling the large tile-shaped inner pit 6 and a draw bar clamping neck 10 for filling the small tile-shaped inner pit 7 are sequentially arranged at the top of the draw bar. The above-described structures of the injection molding machine tie rod 2 and the ejector rod 3 are tightly fitted when the mold is mounted to the injection molding machine. The power of the injection molding machine acts on the pull rod 2 of the injection molding machine, and then is transmitted to the ejector rod 3 of the die, so that the ejector rod 1 of the die is precisely ejected and returned.
It is to be understood that the above examples of the present utility model are provided by way of illustration only and are not intended to limit the scope of the utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included in the scope of the present utility model as set forth in the appended claims.
Claims (6)
1. The utility model provides an ejecting return structure of thimble board, includes the horizontal injection mold of setting on the injection molding machine, horizontal injection mold in be provided with thimble board (1), be equipped with the power unit that is used for ejecting return of thimble board on the injection molding machine, its characterized in that: the power mechanism is connected with an injection molding machine pull rod (2), and a push rod (3) which is mutually buckled with the injection molding machine pull rod (2) is connected in the vertical direction of the thimble plate (1).
2. The ejector plate ejection return structure according to claim 1, wherein: the ejector rod (3) comprises a large truncated cone-shaped mounting end (4) and a small cylindrical connecting end (5), and the mounting end (4) and the connecting end (5) are connected according to a coaxial circle center and are integrally formed.
3. The ejector plate ejection return structure according to claim 2, wherein: the end of the connecting end is provided with a large tile-shaped inner pit (6) and a small tile-shaped inner pit (7) which are connected together.
4. The ejector plate ejection return structure according to claim 3, wherein: screw holes (8) are uniformly distributed on the side edge of the round table at the mounting end, screw rods are arranged in the screw holes, and the mounting end is connected with the thimble plate through the screw rods.
5. The ejector plate ejection return structure according to claim 4, wherein: the longitudinal section of the pull rod (2) is in a shape like a Chinese character 'tu', and a pull rod clamping end (9) for filling the large tile-shaped inner pit (6) and a pull rod clamping neck (10) for filling the small tile-shaped inner pit (7) are sequentially arranged at the top of the pull rod.
6. The ejector plate ejection return structure of claim 5, wherein: the pull rod also comprises a screw rod end (11) connected with the power mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321417341.XU CN219947140U (en) | 2023-06-05 | 2023-06-05 | Ejector plate ejection return structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321417341.XU CN219947140U (en) | 2023-06-05 | 2023-06-05 | Ejector plate ejection return structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219947140U true CN219947140U (en) | 2023-11-03 |
Family
ID=88537364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321417341.XU Active CN219947140U (en) | 2023-06-05 | 2023-06-05 | Ejector plate ejection return structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219947140U (en) |
-
2023
- 2023-06-05 CN CN202321417341.XU patent/CN219947140U/en active Active
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