CN214188195U - Demoulding structure of plastic product injection mould - Google Patents

Demoulding structure of plastic product injection mould Download PDF

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Publication number
CN214188195U
CN214188195U CN202022870817.8U CN202022870817U CN214188195U CN 214188195 U CN214188195 U CN 214188195U CN 202022870817 U CN202022870817 U CN 202022870817U CN 214188195 U CN214188195 U CN 214188195U
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Prior art keywords
sliding sleeve
sliding
rod
lower bolster
plate
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CN202022870817.8U
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Chinese (zh)
Inventor
郑学平
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Fuzhou Pinjia Electronic Technology Co.,Ltd.
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Wujiang Pinjia Plastic Products Co ltd
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Abstract

The utility model discloses a plastic product injection mold's demoulding structure, including bed die and last mould, it installs at the bed die top to go up the mould, the bed die includes bottom plate and lower bolster, lower bolster bottom slidable mounting has the ejector pin, ejector pin one end extends to the lower bolster outside, ejector pin other end fixedly connected with sliding sleeve, the equal fixedly connected with connecting rod in sliding sleeve both sides, it is two sets of the equal fixedly connected with catch bar of connecting rod one end, it is two sets of inside the lower bolster, two sets of equal slidable mounting of catch bar the catch bar one end all passes the lower bolster and extends to the lower bolster outside, and is two sets of the relative lower bolster central symmetry of catch bar sets up, reset assembly is installed to sliding sleeve bottom one side. The utility model discloses a change traditional demoulding structure's structure, make demoulding structure can automatic re-setting ejecting with the product to carry out the drawing of patterns, it is more convenient when carrying out the drawing of patterns to make demoulding structure.

Description

Demoulding structure of plastic product injection mould
Technical Field
The utility model relates to an injection mold technical field specifically is a plastic product injection mold's demoulding 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. Injection molding is a process used to mass produce parts of some complex shapes. 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. The injection mold is divided into a thermosetting plastic mold and a thermoplastic plastic mold according to the molding characteristics; according to the forming process, the method is divided into a transfer mold, a blow mold, a cast mold, a hot forming mold, a hot pressing mold (compression mold), an injection mold and the like, wherein the hot pressing mold can be divided into a flash type, a semi-flash type and a non-flash type by a flash mode, and the injection mold can be divided into a cold runner mold and a hot runner mold by a pouring system; the device can be divided into a movable type and a fixed type according to the loading and unloading mode.
In the process of producing plastic products by using the injection mold, the products need to be demolded, so that the demolding structure needs to be designed on the injection mold, and most of the existing demolding structures of the injection mold are not convenient and fast enough and inconvenient to use. Therefore, we propose a mold release structure for plastic product injection mold.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a plastic product injection mold's demoulding structure, through the structure that changes traditional demoulding structure, it is ejecting with the product that makes demoulding structure can automatic re-setting to carry out the drawing of patterns, with the problem of proposing in solving above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a plastic product injection mold's demoulding structure, includes bed die and mould, it installs at the bed die top to go up the mould, the bed die includes bottom plate and lower bolster, lower bolster bottom slidable mounting has the ejector pin, ejector pin one end extends to the lower bolster outside, ejector pin other end fixedly connected with sliding sleeve, the equal fixedly connected with connecting rod in sliding sleeve both sides, it is two sets of the equal fixedly connected with catch bar of connecting rod one end, it is two sets of the equal slidable mounting of catch bar is inside the lower bolster, it is two sets of catch bar one end all passes the lower bolster and extends to the lower bolster outside, and is two sets of the relative lower bolster centrosymmetric setting of catch bar, reset assembly is installed to sliding sleeve bottom one side, reset assembly bottom fixed mounting is in bottom plate top one side.
Preferably, the reset assembly comprises a sliding rod and a reset spring, one end of the sliding rod is fixedly installed on one side of the top of the bottom plate, the other end of the sliding rod is slidably installed inside the sliding sleeve, the reset spring is installed on the sliding rod, and the reset spring is arranged between the bottom plate and the sliding sleeve.
Preferably, a first limiting plate is fixedly mounted at one end of the sliding sleeve, the sliding rod is slidably mounted on the inner side of the first limiting plate, a through hole is formed in one side of the bottom of the first limiting plate, and the sliding rod is slidably mounted inside the through hole.
Preferably, a second limiting plate is fixedly mounted at one end of the sliding rod, and the second limiting plate is arranged inside the sliding sleeve.
Preferably, first slide holes are formed in two sides of the bottom of the lower template, the two groups of first slide holes are arranged in a central symmetry mode relative to the lower template, and the two groups of push rods are arranged inside the first slide holes in a sliding mode.
Preferably, a second sliding hole is formed in the middle side of the bottom of the lower die plate, the ejector rod is slidably mounted inside the second sliding hole, the height difference between the top surface of the push rod and the top surface of the ejector rod is set to be 1-3cm, and the top surface of the ejector rod is lower than the top surface of the push rod.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a change traditional demoulding structure's structure, at sliding sleeve one end installation reset assembly, when injection mold opened, the ejector pin normal position that resumes under reset assembly's effect to with the ejecting realization drawing of patterns of product, this kind of design makes demoulding structure can automatic re-setting ejecting with the product, thereby carries out the drawing of patterns, makes demoulding structure more convenient when carrying out the drawing of patterns.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure of the lower template of the present invention;
fig. 3 is the utility model discloses a sliding sleeve and a limiting plate sectional structure schematic diagram.
In the figure: 1. a lower die; 2. an upper die; 3. a base plate; 4. a lower template; 5. a top rod; 6. a sliding sleeve; 7. a connecting rod; 8. a push rod; 9. a reset assembly; 901. a slide bar; 902. a return spring; 10. a first limit plate; 11. a through hole; 12. a second limiting plate; 13. a first slide hole; 14. a second slide hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
the demoulding structure of the plastic product injection mould comprises a lower mould 1 and an upper mould 2, wherein the upper mould 2 is arranged at the top of the lower mould 1, the lower mould 1 comprises a bottom plate 3 and a lower template 4, a mandril 5 is slidably arranged at the bottom of the lower template 4, the mandril 5 is used for ejecting a product to be demoulded, one end of the mandril 5 extends to the outside of the lower template 4, the other end of the mandril 5 is fixedly connected with a sliding sleeve 6, the sliding sleeve 6 is used for installing the mandril 5, both sides of the sliding sleeve 6 are fixedly connected with connecting rods 7, the connecting rods 7 are used for installing push rods 8, one ends of the two groups of connecting rods 7 are fixedly connected with push rods 8, the push rods 8 are used for pushing the mandril 5 to move downwards, the two groups of push rods 8 are slidably arranged in the lower template 4, one ends of the two groups of push rods 8 both extend to the outside of the lower template 4 through the lower template 4, the two groups of push rods 8 are centrally and symmetrically arranged relative to the lower template 4, one side of the bottom of the sliding sleeve 6 is provided with a resetting component 9, reset assembly 9 is used for reseing ejector pin 5 to realize the drawing of patterns, reset assembly 9 bottom fixed mounting is in bottom plate 3 top one side.
Reset assembly 9 includes slide bar 901 and reset spring 902, slide bar 901 one end fixed mounting is in bottom plate 3 top one side, the slide bar 901 other end slidable mounting is inside sliding sleeve 6, reset spring 902 installs on slide bar 901, reset spring 902 sets up between bottom plate 3 and sliding sleeve 6, slide bar 901 is used for installing and installing reset spring 902 and sliding sleeve 6, can make the removal that sliding sleeve 6 can be stable, reset spring 902 resets with roof-bar 5, thereby realize the drawing of patterns.
A first limiting plate 10 is fixedly mounted at one end of the sliding sleeve 6, a through hole 11 is formed in one side of the bottom of the first limiting plate 10, and the sliding rod 901 is slidably mounted inside the through hole 11. One end of the sliding rod 901 is fixedly provided with a second limiting plate 12, and the second limiting plate 12 is arranged inside the sliding sleeve 6. The first limit plate 10 and the second limit plate 12 are used together to prevent the sliding sleeve 6 from falling off the sliding rod 901.
First slide opening 13 has all been seted up to 4 bottom both sides of lower bolster, and two sets of first slide opening 13 are relative 4 central symmetry settings of lower bolster, and two sets of catch bars 8 are all slidable mounting inside first slide opening 13, and first slide opening 13 is used for installing catch bar 8.
The middle side of the bottom of the lower template 4 is provided with a second slide hole 14, the second slide hole 14 is used for installing an ejector rod 5, the ejector rod 5 is slidably installed inside the second slide hole 14, the height difference between the top surface of the push rod 8 and the top surface of the ejector rod 5 is set to be 1-3cm, the top surface of the ejector rod 5 is lower than the top surface of the push rod 8, and the top surface of the ejector rod 5 can be flat with the surface of the inner side due to the height difference between the inner side and the outer side of the lower template 4.
When the injection mold is used for producing plastic products, when the lower mold 1 and the upper mold 2 are combined, the bottom of the upper mold 2 extrudes the push rod 8, the push rod 8 pushes the connecting rod 7, the connecting rod 7 drives the sliding sleeve 6 to move, the sliding sleeve 6 moves to drive the ejector rod 5 to move, the top surface of the ejector rod 5 is flush with the inner surface of the lower mold 1, and the bottom of the sliding sleeve 6 extrudes the reset spring 902; when the product is molded, the upper mold 2 and the lower mold 1 are opened, when the upper mold 2 is separated from the lower mold 1, the sliding sleeve 6 moves upwards under the action of the elastic force of the reset spring 902, and the sliding sleeve 6 moves upwards to drive the ejector rod 5 to move upwards, so that the ejector rod 5 returns to the original position, the molded product is ejected out, and the demolding is realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a plastic product injection mold's demoulding structure, includes bed die (1) and last mould (2), its characterized in that: the upper die (2) is arranged at the top of the lower die (1), the lower die (1) comprises a bottom plate (3) and a lower die plate (4), ejector rods (5) are slidably arranged at the bottom of the lower die plate (4), one end of each ejector rod (5) extends to the outside of the lower die plate (4), a sliding sleeve (6) is fixedly connected with the other end of each ejector rod (5), connecting rods (7) are fixedly connected with the two sides of the sliding sleeve (6), push rods (8) are fixedly connected with one ends of the two groups of connecting rods (7), the two groups of push rods (8) are slidably arranged in the lower die plate (4), one ends of the two groups of push rods (8) extend to the outside of the lower die plate (4) through the lower die plate (4), the two groups of push rods (8) are arranged symmetrically relative to the center of the lower die plate (4), and a reset assembly (9) is, the bottom of the reset component (9) is fixedly arranged on one side of the top of the bottom plate (3).
2. The structure of claim 1, wherein: the reset assembly (9) comprises a sliding rod (901) and a reset spring (902), one end of the sliding rod (901) is fixedly installed on one side of the top of the bottom plate (3), the other end of the sliding rod (901) is installed inside the sliding sleeve (6) in a sliding mode, the reset spring (902) is installed on the sliding rod (901), and the reset spring (902) is arranged between the bottom plate (3) and the sliding sleeve (6).
3. The structure of claim 2, wherein: one end of the sliding sleeve (6) is fixedly provided with a first limiting plate (10), one side of the bottom of the first limiting plate (10) is provided with a through hole (11), and the sliding rod (901) is slidably arranged in the through hole (11).
4. The structure of claim 3, wherein: one end of the sliding rod (901) is fixedly provided with a second limiting plate (12), and the second limiting plate (12) is arranged inside the sliding sleeve (6).
5. The structure of claim 1, wherein: first slide holes (13) are formed in two sides of the bottom of the lower template (4), the first slide holes (13) are symmetrically arranged relative to the center of the lower template (4), and the push rods (8) are arranged in the first slide holes (13) in a sliding mode.
6. The structure of claim 1, wherein: the middle side of the bottom of the lower template (4) is provided with a second sliding hole (14), the ejector rod (5) is slidably mounted inside the second sliding hole (14), the height difference between the top surface of the push rod (8) and the top surface of the ejector rod (5) is set to be 1-3cm, and the top surface of the ejector rod (5) is lower than the top surface of the push rod (8).
CN202022870817.8U 2020-12-02 2020-12-02 Demoulding structure of plastic product injection mould Active CN214188195U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022870817.8U CN214188195U (en) 2020-12-02 2020-12-02 Demoulding structure of plastic product injection mould

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Application Number Priority Date Filing Date Title
CN202022870817.8U CN214188195U (en) 2020-12-02 2020-12-02 Demoulding structure of plastic product injection mould

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113752503A (en) * 2021-09-26 2021-12-07 华尔福(扬州)半导体新材料有限公司 Polytetrafluoroethylene injection mold and injection molding process thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113752503A (en) * 2021-09-26 2021-12-07 华尔福(扬州)半导体新材料有限公司 Polytetrafluoroethylene injection mold and injection molding process thereof

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GR01 Patent grant
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TR01 Transfer of patent right

Effective date of registration: 20240411

Address after: 344000 South of Weiliu Road, Fuzhou High tech Industrial Development Zone, Fuzhou City, Jiangxi Province

Patentee after: Fuzhou Pinjia Electronic Technology Co.,Ltd.

Country or region after: China

Address before: No.58 Lianhua Road, Youyi Industrial Zone, Songling Town, Wujiang District, Suzhou City, Jiangsu Province

Patentee before: Wujiang Pinjia plastic products Co.,Ltd.

Country or region before: China

TR01 Transfer of patent right