CN114571677A - Injection mold with pneumatic demoulding structure - Google Patents
Injection mold with pneumatic demoulding structure Download PDFInfo
- Publication number
- CN114571677A CN114571677A CN202210314417.XA CN202210314417A CN114571677A CN 114571677 A CN114571677 A CN 114571677A CN 202210314417 A CN202210314417 A CN 202210314417A CN 114571677 A CN114571677 A CN 114571677A
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- China
- Prior art keywords
- pneumatic
- rod
- air channel
- branch
- mold body
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- 238000002347 injection Methods 0.000 title claims abstract description 25
- 239000007924 injection Substances 0.000 title claims abstract description 25
- 238000003466 welding Methods 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 description 9
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000750 progressive effect Effects 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
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an injection mold with a pneumatic demolding structure, which comprises a mold body, wherein an injection cover is arranged above the mold body, a cavity is formed in the mold body, a main air channel is formed in the bottom of the mold body, a branch air channel is further connected to the main air channel, a pneumatic rod is arranged on the inner side of the main air channel, a transverse plate is arranged at the upper end of the pneumatic rod, a jacking block is arranged on the inner side of the branch air channel, a support rod is arranged on the surface of the jacking block, the support rod is positioned on the inner side of a limiting groove, a driving spring is arranged on the outer side of the support rod, and the driving spring is positioned on the inner side of the limiting groove. This injection mold with pneumatic demoulding structure, gas can pour into main air duct respectively and prop up the air flue and promote pneumatic rod and kicking block, so make things convenient for the kicking block to carry out the top to the lateral wall of product and move the drawing of patterns, and pneumatic rod then can drive the bottom completion drawing of patterns that the ejector pin promoted the product through the diaphragm, finally makes things convenient for the product to take out from this internal mould.
Description
Technical Field
The invention belongs to the technical field of injection molds, and particularly relates to an injection mold with a pneumatic demolding structure.
Background
An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification.
After injection mold accomplished the use, the product of its inside completion injection molding is inconvenient takes out, and the product surface can produce the adhesion of certain degree with the die cavity inner wall, leads to the drawing of patterns difficulty, and then take out the integrality that can influence injection molding product violently.
Disclosure of Invention
In order to solve the problems that after the injection mold is used, a product subjected to injection molding in the injection mold is inconvenient to take out, the surface of the product is adhered to the inner wall of a cavity to a certain degree, so that demolding is difficult, and the integrity of the injection product is influenced by taking out violently, the invention aims to provide the injection mold with a pneumatic demolding structure.
In order to achieve the purpose, the invention provides an injection mold with a pneumatic demolding structure, which comprises a mold body, wherein an injection cover is arranged above the mold body, a cavity is formed in the mold body, a main air channel is formed in the bottom of the mold body, a branch air channel is further connected to the main air channel, a pneumatic rod is arranged on the inner side of the main air channel, a transverse plate is arranged at the upper end of the pneumatic rod, a return spring is arranged on the upper surface of the transverse plate, ejector rods are arranged at the left end and the right end of the transverse plate respectively, end covers are arranged at the upper ends of the ejector rods, a guide rod is arranged inside the ejector rods and fixedly connected with the mold body, a mounting groove is formed in the surface of the guide rod, a ball is arranged inside the mounting groove, one end, far away from the mounting groove, of the ball is located in a guide groove, and the guide groove is formed in the inner wall of the ejector rods, the inboard of propping up the air flue is provided with the kicking block, the surface mounting of kicking block has branch, branch is located the inboard of spacing groove, the outside of branch is provided with drive spring, drive spring is located the inboard of spacing groove.
In one example, be fixed connection between pneumatic rod and the diaphragm, be welded connection between diaphragm and the ejector pin, after the pneumatic rod receives atmospheric pressure to promote, the pneumatic rod can carry out the synchronous motion through diaphragm promotion ejector pin.
In one example, the top rod is telescopically connected with the guide rod, and the top rod and the guide rod are symmetrically distributed about the longitudinal center line of the transverse plate, so that the top rod can conveniently perform telescopic motion on the guide rod, and the top rod can conveniently perform ejection demoulding on the bottom of a product.
In one example, the ball passes through the mounting groove and is connected with the guide bar rotation, the ball passes through guide slot and guide slot sliding connection, has promoted the ejector pin and has carried out concertina movement's smoothness nature on the guide bar, can avoid the ejector pin dead circumstances of card to appear in the in-process of carrying out concertina movement.
In one example, the top block is matched with the branch air channel, and the top block is fixedly connected with the support rod, so that sufficient air pressure can be conveniently used for pushing the top block to extend out of the branch air channel to eject and demold the side wall of the product.
In one example, branch and spacing groove sliding connection, branch and drive spring constitute extending structure, and drive spring can promote branch and drive the kicking block and carry out reverse retraction and reset, avoids influencing follow-up moulding plastics.
The injection mold with the pneumatic demolding structure provided by the invention can bring the following beneficial effects:
1. gas can pour into main gas passage and branch gas passage respectively and promote pneumatic rod and kicking block, so make things convenient for the kicking block to carry out the top to the lateral wall of product and move the drawing of patterns, and the pneumatic rod then can drive the bottom that the ejector pin promoted the product through the diaphragm and accomplish the drawing of patterns, finally makes things convenient for the product to take out from this internal mould.
2. After the kicking block stretches out the drawing of patterns to the product lateral wall completion under atmospheric pressure, drive spring can promote the kicking block and carry out the withdrawal and reset, and same reset spring can promote the diaphragm and drive the ejector pin and carry out the withdrawal, so can avoid influencing follow-up product and carry out the work of normally moulding plastics, prevent to influence the injection moulding of product.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a front section structure of the connection of the ejector rod and the guide rod of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;
fig. 4 is an enlarged schematic view of the invention at B in fig. 2.
In the figure: 1. a mold body; 2. injection molding a cover; 3. a cavity; 4. a main air passage; 5. a branch airway; 6. a pneumatic rod; 7. a transverse plate; 8. a return spring; 9. a top rod; 10. an end cap; 11. a guide rod; 12. mounting grooves; 13. a ball bearing; 14. a guide groove; 15. a top block; 16. a strut; 17. a limiting groove; 18. a drive spring.
Detailed Description
In order to more clearly explain the overall concept of the invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "central," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for ease of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description of the present specification, reference to the description of the terms "one aspect," "some aspects," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.
As shown in fig. 1 to 4, an embodiment of the present invention provides an injection mold with a pneumatic demolding structure, which includes a mold body 1, an injection cover 2 is disposed above the mold body 1, a cavity 3 is disposed on the mold body 1, a main air passage 4 is disposed at the bottom of the mold body 1, a branch air passage 5 is further connected to the main air passage 4, a pneumatic rod 6 is disposed inside the main air passage 4, a horizontal plate 7 is mounted at an upper end of the pneumatic rod 6, a return spring 8 is mounted on an upper surface of the horizontal plate 7, ejector rods 9 are mounted at left and right ends of the horizontal plate 7, an end cover 10 is mounted at an upper end of the ejector rod 9, a guide rod 11 is mounted inside the ejector rod 9, the guide rod 11 is fixedly connected to the mold body 1, a mounting groove 12 is disposed on a surface of the guide rod 11, a ball 13 is mounted inside the mounting groove 12, one end of the ball 13, which is far away from the mounting groove 12, is located in a guide groove 14, the guide groove 14 is disposed on an inner wall of the ejector rod 9, the inner side of the gas branch passage 5 is provided with a top block 15, the surface of the top block 15 is provided with a support rod 16, the support rod 16 is positioned at the inner side of a limiting groove 17, the outer side of the support rod 16 is provided with a driving spring 18, and the driving spring 18 is positioned at the inner side of the limiting groove 17.
Specifically, be fixed connection between pneumatic rod 6 and the diaphragm 7, be welded connection between diaphragm 7 and the ejector pin 9, after pneumatic rod 6 received atmospheric pressure to promote, pneumatic rod 6 can promote ejector pin 9 through diaphragm 7 and carry out the synchronous motion conveniently.
Specifically, ejector pin 9 and guide rod 11 telescopic connection, ejector pin 9 and guide rod 11 all about the longitudinal centerline symmetric distribution of diaphragm 7, make things convenient for ejector pin 9 to carry out concertina movement on guide rod 11 to make things convenient for ejector pin 9 to carry out the top to move the drawing of patterns to the bottom of product.
Specifically, ball 13 passes through mounting groove 12 and is connected with guide bar 11 rotation, and ball 13 has promoted ejector pin 9 and has carried out concertina movement's smoothness nature on guide bar 11 through guide groove 14 and guide groove 14 sliding connection, can avoid ejector pin 9 to appear the card dead condition at the in-process that carries out concertina movement.
Specifically, the ejector block 15 and the branch air channel 5 are matched with each other, the ejector block 15 is fixedly connected with the support rod 16, and sufficient air pressure can be conveniently used for pushing the ejector block 15 to extend out of the branch air channel 5 so as to eject and demold the side wall of the product.
Specifically, branch 16 and spacing groove 17 sliding connection, branch 16 and drive spring 18 constitute extending structure, and drive spring 18 can promote branch 16 and drive kicking block 15 and carry out reverse withdrawal and reset, avoids influencing follow-up moulding plastics.
The working principle is as follows: when a product is subjected to injection molding and needs to be demolded, firstly, the injection molding cover 2 on the mold body 1 is taken down, then air is injected into the main air passage 4 through an external pipeline, the air injected into the main air passage 4 is divided through the branch air passage 5, meanwhile, the air injected into the main air passage 4 generates air pressure to jack the pneumatic rod 6, so that the pneumatic rod 6 at the moment drives the ejector rod 9 to synchronously move through the transverse plate 7, the ejector rod 9 at the moment upwards extends through the ball 13 and the guide groove 14, the extended ejector rod 9 can push the bottom of the product for demolding, the air injected into the branch air passage 5 can push the ejector block 15, the ejector block 15 pushed by the air pressure drives the support rod 16 to slide and displace in the limiting groove 17 until the ejector block 15 extends out of the surface of the cavity 3 to jack the side wall of the product for demolding, and therefore, the product with the bottom and the side wall subjected to adhesion demolding can be taken out, then, air is not injected any more, so the return spring 8 can push the transverse plate 7 to drive the ejector rod 9 to move reversely for resetting, and the driving spring 18 also pushes the support rod 16 to slide reversely in the limiting groove 17 for resetting, thereby avoiding influencing the subsequent injection molding operation.
All the embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. An injection mold with a pneumatic demolding structure is characterized by comprising a mold body, wherein an injection cover is arranged above the mold body, a cavity is formed in the mold body, a main air channel is formed in the bottom of the mold body, a branch air channel is connected to the main air channel, a pneumatic rod is arranged on the inner side of the main air channel, a transverse plate is mounted at the upper end of the pneumatic rod, a reset spring is mounted on the upper surface of the transverse plate, ejector rods are mounted at the left end and the right end of the transverse plate, end covers are mounted at the upper ends of the ejector rods, guide rods are mounted inside the ejector rods and fixedly connected with the mold body, mounting grooves are formed in the surfaces of the guide rods, balls are mounted inside the mounting grooves, one ends, far away from the mounting grooves, of the balls are located in guide grooves, the guide grooves are formed in the inner walls of the ejector rods, and ejector blocks are arranged on the inner sides of the branch air channels, the surface mounting of kicking block has branch, branch is located the inboard of spacing groove, the outside of branch is provided with driving spring, driving spring is located the inboard of spacing groove.
2. An injection mold having a pneumatic knock-out structure according to claim 1, wherein: the pneumatic rod is fixedly connected with the transverse plate, and the transverse plate is connected with the ejector rod in a welding mode.
3. An injection mold having a pneumatic knock-out structure according to claim 1, wherein: the ejector pin is connected with the guide rod in a telescopic mode, and the ejector pin and the guide rod are symmetrically distributed about the longitudinal center line of the transverse plate.
4. An injection mold having a pneumatic knock-out structure according to claim 1, wherein: the ball passes through the mounting groove and is connected with the guide bar rotation, the ball passes through guiding groove and guiding groove sliding connection.
5. An injection mold having a pneumatic knock-out structure according to claim 1, wherein: the top block is matched with the branch air channel, and the top block is fixedly connected with the branch rod.
6. An injection mold having a pneumatic knock-out structure according to claim 1, wherein: the supporting rod is connected with the limiting groove in a sliding mode, and the supporting rod and the driving spring form a telescopic structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210314417.XA CN114571677A (en) | 2022-03-29 | 2022-03-29 | Injection mold with pneumatic demoulding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210314417.XA CN114571677A (en) | 2022-03-29 | 2022-03-29 | Injection mold with pneumatic demoulding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114571677A true CN114571677A (en) | 2022-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210314417.XA Pending CN114571677A (en) | 2022-03-29 | 2022-03-29 | Injection mold with pneumatic demoulding structure |
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| CN (1) | CN114571677A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115214075A (en) * | 2022-08-25 | 2022-10-21 | 苏州道格实业有限公司 | Liquid silica gel injection system and method for producing liquid silica gel molded product |
-
2022
- 2022-03-29 CN CN202210314417.XA patent/CN114571677A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115214075A (en) * | 2022-08-25 | 2022-10-21 | 苏州道格实业有限公司 | Liquid silica gel injection system and method for producing liquid silica gel molded product |
| CN115214075B (en) * | 2022-08-25 | 2024-02-06 | 苏州道格实业有限公司 | Liquid silica gel injection system and method for producing liquid silica gel molded product |
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| PB01 | Publication | ||
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Effective date of registration: 20240521 Address after: 226341 Group 38, Zhangsha Village, Shizong Town, Tongzhou District, Nantong City, Jiangsu Province Applicant after: Nantong Lifeng Artificial Intelligence Technology Co.,Ltd. Country or region after: China Address before: 215400 Zhangqiao village, Liuhe Town, Taicang City, Suzhou City, Jiangsu Province Applicant before: Taicang Tongyu Plastic Electronic Technology Co.,Ltd. Country or region before: China |