High-position screw cylinder forming structure

Abstract

The utility model relates to the technical field of injection molds, and discloses a high-position screw column body forming structure which comprises a plastic column body and an inner mold body, the plastic column body and the high-position screw column body are integrally formed, a forming cavity with an opening in the top is formed in the inner mold body, the plastic column body is located in the forming cavity, and the plastic column body and the forming cavity are coaxially arranged; through tight combination of the plastic column body and the screw column position, firm installation is ensured, the overall performance of a product is not affected, the problem that the appearance surface of the screw column position shrinks is effectively solved, the appearance quality of a plastic product is remarkably improved, the plastic column body is subjected to injection molding through waste materials, the production cost is greatly reduced, and the requirement for raw materials is reduced; meanwhile, the waste treatment cost is also reduced; the problem that the screw column is easily shrunk due to complete glue injection molding is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of injection mold, specifically, high screw post body forming structure. BACKGROUND

[0002] In the production process of plastic products, when the screw post position is designed to be high, the inner needle of the mold is prone to breakage, which seriously affects the appearance quality and production capacity of the product.

[0003] The prior art mainly disengages the product from the mold by digging glue at the bottom of the screw post and breaking the main wall thickness of the product, thereby improving the shrinkage of the main wall thickness of the product. However, this method requires the use of an inclined ejector. However, due to the special structure of the product and the limited space, the inclined ejector does not have enough space to move, making it impossible to complete the demolding process. Alternatively, the screw post can be completely formed by injection molding. However, this method is prone to shrinkage of the screw post and affects the appearance quality of the product. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a high screw post body forming structure to solve the problem of shrinkage of the screw post formed by complete injection molding in the prior art.

[0005] The utility model is implemented as follows: a high screw post body forming structure includes a plastic column body and an inner mold body for integrally forming with a high screw post body. A forming cavity with a top opening is formed in the inner mold body. The plastic column body is located in the forming cavity, and the plastic column body and the forming cavity are coaxially arranged.

[0006] Further, a positioning structure is provided on the plastic column body, and the plastic column body is movably abutted with the inner side wall of the forming cavity through the positioning structure.

[0007] Further, the positioning structure includes a plurality of positioning sheets, and the plurality of positioning sheets are arranged in a circumferential direction of the plastic column body.

[0008] Further, an injection gap is formed between adjacent positioning sheets.

[0009] Further, the positioning sheets are arranged vertically on the outer periphery of the plastic column body.

[0010] Further, the positioning sheets have an inner end face connected with the plastic column body and an outer end face abutted with the inner side wall of the forming cavity. The outer end face and the inner end face are arranged in opposite directions, and the upper and lower sides of the positioning sheets are gradually reduced in the direction away from the plastic column body, forming the outer end face.

[0011] Further, the positioning sheets and the plastic column body are an integrated structure.

[0012] Further, the upper and lower ends of the plastic column body are respectively provided with positioning structures.

[0013] Further, the two positioning structures are vertically and oppositely spaced.

[0014] Further, the plastic column body is spaced from the inner side wall of the forming cavity to form an annular space for filling glue liquid to make the glue liquid and the plastic column body integrally formed.

[0015] Compared with the prior art, the high screw column body forming structure provided by the utility model realizes the close combination of the plastic column body and the screw column position, ensures firm installation and does not affect the overall performance of the product, effectively solves the shrinkage problem of the appearance surface of the screw column position, significantly improves the appearance quality of the plastic product, greatly reduces the production cost by using waste injection molding plastic column body, reduces the demand for raw materials, and reduces the cost of waste treatment; solves the problem that the screw column is completely formed by injection molding and is prone to shrinkage. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a three-dimensional schematic view of the high screw column body forming structure provided by the utility model;

[0017] Figure 2 is a sectional structure schematic view of the high screw column body forming structure provided by the utility model;

[0018] Figure 3 is a three-dimensional schematic view of the plastic column body provided by the utility model;

[0019] Figure 4 is a three-dimensional schematic view of the product and the screw column body provided by the utility model;

[0020] Figure 5 is a sectional structure schematic view of the product and the screw column body provided by the utility model.

[0021] In the figure: inner mold body 10, plastic column body 20, positioning structure 30, screw column body 40, product 50, forming cavity 11, positioning piece 31, outer end face 32. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and do not limit the utility model.

[0023] The implementation of the utility model is described in detail below in combination with specific examples.

[0024] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the utility model, it is understood that if the orientation or position relationship indicated by the terms "upper", "lower", "left", "right" and the like is based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the position relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the utility model, for ordinary skilled persons in the art, the specific meaning of the above-mentioned terms can be understood according to the specific circumstances.

[0025] Referring to Figures 1-5 The preferred embodiment provided by the utility model is shown in the drawings.

[0026] The high-position screw column body 40 forming structure comprises a plastic column body 20 and an inner mold body 10, the inner mold body 10 is provided with a top opening forming cavity 11, the plastic column body 20 is located in the forming cavity 11, and the plastic column body 20 is coaxially arranged with the forming cavity 11.

[0027] The high-position screw column body 40 forming structure provided above ensures firm installation and does not affect the overall performance of the product 50 through the close combination of the plastic column body 20 and the screw column position, effectively solves the shrinkage problem of the screw column position appearance surface, significantly improves the appearance quality of the plastic product 50, greatly reduces the production cost by using waste injection molding of the plastic column body 20, reduces the demand for raw materials, and also reduces the cost of waste treatment; the problem that the screw column is completely formed by injection molding and is prone to shrinkage is solved.

[0028] In the embodiment, the plastic column body 20 is provided with a positioning structure 30, and the plastic column body 20 is movably abutted with the inner side wall of the forming cavity 11 through the positioning structure 30. In this way, the plastic column body 20 cannot swing in the forming cavity 11, and the close combination of the plastic column body 20 and the screw column body 40 is increased.

[0029] In the embodiment, the positioning structure 30 comprises a plurality of positioning sheets 31, and the plurality of positioning sheets 31 are arranged in a spaced manner along the circumference of the plastic column body 20. In this way, the plastic column body 20 can be in contact and pressed against the inner side wall of the forming cavity 11 through the plurality of positioning sheets 31, so that the wall thickness of the screw column body 40 formed by the glue liquid is more uniform and thicker.

[0030] In the embodiment, an injection gap is formed between adjacent positioning sheets 31. In this way, the injection molding machine has space for the glue to flow from top to bottom into the forming cavity 11, without affecting the filling of the forming cavity 11.

[0031] The positioning sheet 31 is vertically arranged on the outer periphery of the plastic column body 20.

[0032] In the embodiment, the positioning sheet 31 has an inner end surface connected with the plastic column 20 and an outer end surface 32 abutting against the inner side wall of the forming cavity 11. The outer end surface 32 is arranged opposite to the inner end surface, and the upper and lower sides of the positioning sheet 31 are gradually reduced away from the plastic column 20, and the outer end surface 32 is formed. In this way, the forming structure between the glue solution and the plastic column 20 is facilitated to be enhanced.

[0033] In the embodiment, the positioning sheet 31 and the plastic column 20 are integrated. In this way, the structural strength between the positioning sheet 31 and the plastic column 20 is enhanced.

[0034] In the embodiment, the upper and lower ends of the plastic column 20 are respectively provided with the positioning structure 30. In this way, the stability of the plastic column 20 in the forming cavity 11 is further increased, and the plastic column 20 is prevented from swinging in the process of injecting glue.

[0035] The two positioning structures 30 are vertically and oppositely spaced.

[0036] In the embodiment, the plastic column 20 and the inner side wall of the forming cavity 11 are spaced, and an annular space for filling the glue solution is formed to make the glue solution and the plastic column 20 integrally formed.

[0037] The shrinkage problem of the appearance surface of the screw column position is effectively solved, and the appearance quality of the plastic product 50 is significantly improved.

[0038] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high head screw post forming structure, characterized in that, The plastic column body is integrally formed with the high-position screw column body, and an inner mold body is provided with a top-opened forming cavity in which the plastic column body is arranged coaxially.

2. The high stand screw post forming structure according to claim 1, wherein, The plastic column body is provided with a positioning structure, and the plastic column body is movably abutted with the inner sidewall of the forming cavity through the positioning structure.

3. The high stand screw post forming structure according to claim 2, wherein, The positioning structure comprises a plurality of positioning pieces which are arranged in a circumferential direction of the plastic column body.

4. The high stand screw post forming structure according to claim 3, wherein, The positioning pieces are arranged in a circumferential direction of the plastic column body.

5. The high stand screw post forming structure according to claim 3, wherein, The positioning pieces are arranged in a circumferential direction of the plastic column body.

6. The high stand screw post forming structure according to claim 3, wherein, The positioning pieces are arranged in a circumferential direction of the plastic column body.

7. The overhead screw post forming structure according to any one of claims 3 to 6, wherein The positioning pieces are arranged in a circumferential direction of the plastic column body.

8. The overhead screw post forming structure according to any one of claims 2 to 6, wherein The positioning pieces are arranged in a circumferential direction of the plastic column body.

9. The high stand screw post forming structure according to claim 8, wherein, The positioning pieces are arranged in a circumferential direction of the plastic column body.

10. The overhead screw post forming structure according to any one of claims 2 to 6, wherein The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction of the plastic column body. The positioning pieces are arranged in a circumferential direction

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