Pitched roof structure and injection mold

Abstract

The utility model provides a pitched roof structure and an injection mold. The pitched roof structure comprises a base, a pitched roof sliding rod, a forming pitched roof head and a fastening round pin. One end of the pitched roof sliding rod is connected to the base in a sliding mode, a connecting part is formed at the other end of the pitched roof sliding rod, and a first penetrating hole is formed in the connecting part; a butt joint hole, a second penetrating hole and a third penetrating hole are formed in the forming inclined top head, the butt joint hole is communicated with the second penetrating hole and the third penetrating hole, and the second penetrating hole is communicated with the third penetrating hole; the connecting part is arranged in the butt joint hole, so that the hole center of the first penetrating hole, the hole center of the second penetrating hole and the hole center of the third penetrating hole are aligned; the fastening round pin sequentially penetrates through the first penetrating hole, the second penetrating hole and the third penetrating hole, so that the forming angle ejector head is detachably connected with the angle ejector sliding rod. The angle ejector structure can carry out targeted maintenance work on the forming angle ejector head or the angle ejector sliding rod, and can effectively prevent the whole angle ejector from being scrapped, so that the replaceable maintainability of the forming angle ejector head and the angle ejector sliding rod is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a lifter structure and an injection mold. Background Art

[0002] The lifter of a mold is also known as a lifter pin. The term "lifter" is a common saying in the mold industry in the Pearl River Delta region, mainly in Hong Kong-invested mold factories. The lifter is part of the ejection mechanism of an injection mold. When there are internal undercut structural features on a plastic product, such as the installation undercut structures of products like plastic shells, plastic bases, plastic back covers, and plastic panels, designers usually adopt a lifter ejection structure design on the injection mold.

[0003] However, traditional lifters generally adopt an integrally formed structure. If problems such as the lifter getting stuck during sliding or deforming and breaking occur during the trial mold or production of the injection mold, it will make the repair of the lifter more difficult, and may even cause the entire lifter to be damaged or scrapped. This is not conducive to the assembly workers to carry out targeted replacement and repair work on the lifter, thus seriously reducing the production efficiency of the injection mold and also shortening the service life of the injection mold. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art, and provide a lifter structure and an injection mold that can effectively reduce the repair difficulty of the lifter and are easy to replace and repair the damaged part in a targeted manner.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] A lifter structure includes a base, a lifter slide bar, a formed lifter head, and a fastening round pin;

[0007] One end of the lifter slide bar is slidably connected to the base, and a connecting portion is formed at the other end of the lifter slide bar. A first through hole is provided in the connecting portion;

[0008] The formed lifter head is provided with a docking hole, a second through hole, and a third through hole. The docking hole is respectively communicated with the second through hole and the third through hole, and the second through hole is communicated with the third through hole; the connecting portion is disposed in the docking hole, so that the centers of the first through hole, the second through hole, and the third through hole are aligned;

[0009] The fastening round pin is sequentially passed through the first through hole, the second through hole, and the third through hole, so that the formed lifter head is detachably connected to the lifter slide bar.

[0010] In one embodiment, an anti-false-positioning groove is provided on the side of the docking hole;

[0011] A positioning convex part is formed on the connecting part, and the positioning convex part is arranged in the anti-fooling positioning groove.

[0012] In one embodiment, the lifter structure further includes a wear-resistant block, which is embedded on the lifter slide bar, so that the wear-resistant surface of the wear-resistant block is flush with the sliding surface of the lifter slide bar, and a plurality of first spherical oil grooves are arranged in an array on the wear-resistant surface of the wear-resistant block.

[0013] In one embodiment, a plurality of second spherical oil grooves are arranged in an array on the sliding surface of the lifter slide bar, and the plurality of first spherical oil grooves and the plurality of second spherical oil grooves are all used for accommodating lubricant.

[0014] In one embodiment, the lifter structure further includes a guiding and fixing block, the guiding and fixing block is provided with a guiding through hole, and the sliding surface of the lifter slide bar and the wear-resistant surface of the wear-resistant block are both slidably connected to the inner wall of the guiding through hole.

[0015] In one embodiment, the guiding and fixing block is an integrally formed structure.

[0016] In one embodiment, the formed lifter head and the lifter slide bar are both integrally formed structures.

[0017] An injection mold includes the lifter structure described in any one of the above embodiments.

[0018] Compared with the prior art, the present utility model has at least the following advantages:

[0019] The processing difficulty of the docking hole, the first through hole, the second through hole and the third through hole of the lifter structure of the present utility model is relatively low; at the same time, the assembly convenience and practicality of the connecting part and the docking hole are relatively good. In addition, through the installation and positioning of the fastening round pin, the connection relationship between the formed lifter head and the lifter slide bar is relatively reliable; therefore, when problems such as sliding jamming or deformation and fracture occur to the lifter, targeted maintenance work can be carried out on the formed lifter head or the lifter slide bar, effectively avoiding the scrapping of the entire lifter, thereby improving the replaceability and maintainability of the formed lifter head and the lifter slide bar, and further effectively improving the production efficiency of the injection mold and the service life of the injection mold. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a structural schematic diagram of an inclined lifter structure in an embodiment;

[0022] Figure 2 It is Figure 1 a half-sectional schematic diagram of the shown inclined lifter structure;

[0023] Figure 3 It is Figure 2 a partial enlarged schematic diagram at position A of the shown inclined lifter structure;

[0024] Figure 4 It is Figure 1 a structural schematic diagram of the formed inclined lifter head and fastening round pin of the shown inclined lifter structure;

[0025] Figure 5 It is Figure 1 a partial structural schematic diagram of the inclined lifter slide bar of the shown inclined lifter structure. Detailed implementation manners

[0026] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a middle element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiments.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0029] The present disclosure provides an inclined ejector structure, including a base, an inclined ejector slide bar, a formed inclined ejector head, and a fastening round pin. One end of the inclined ejector slide bar is slidably connected to the base, and a connecting portion is formed at the other end of the inclined ejector slide bar. A first through hole is formed in the connecting portion. The formed inclined ejector head is provided with a docking hole, a second through hole, and a third through hole. The docking hole is respectively communicated with the second through hole and the third through hole, and the second through hole is communicated with the third through hole. The connecting portion is disposed in the docking hole so that the centers of the first through hole, the second through hole, and the third through hole are aligned. The fastening round pin is sequentially passed through the first through hole, the second through hole, and the third through hole, so that the formed inclined ejector head and the inclined ejector slide bar are detachably connected.

[0030] Please refer to Figures 1 to 5 , in order to better understand the inclined ejector structure 10 of the present application, the following further explanatory description is made on the inclined ejector structure 10:

[0031] The inclined ejector structure 10 of an embodiment includes a base 100, an inclined ejector slide bar 200, a formed inclined ejector head 300, and a fastening round pin 400. One end of the inclined ejector slide bar 200 is slidably connected to the base 100, and a connecting portion 210 is formed at the other end of the inclined ejector slide bar 200. A first through hole 2101 is formed in the connecting portion 210. The formed inclined ejector head 300 is provided with a docking hole 301, a second through hole 302, and a third through hole 303. The docking hole 301 is respectively communicated with the second through hole 302 and the third through hole 303, and the second through hole 302 is communicated with the third through hole 303. The connecting portion 210 is disposed in the docking hole 301 so that the centers of the first through hole 2101, the second through hole 302, and the third through hole 303 are aligned. The fastening round pin 400 is sequentially passed through the first through hole 2101, the second through hole 302, and the third through hole 303, so that the formed inclined ejector head 300 and the inclined ejector slide bar 200 are detachably connected.

[0032] In this embodiment, for the lifter structure 10 of the present utility model, the processing difficulty of the docking hole 301, the first through hole 2101, the second through hole 302 and the third through hole 303 is relatively low; at the same time, the assembly convenience and practicability of the connecting portion 210 and the docking hole 301 are relatively good. In addition, through the installation and positioning of the fastening round pin 400, the connection relationship between the formed lifter head 300 and the lifter slide bar 200 is relatively reliable; therefore, when problems such as sliding jamming or deformation and fracture occur to the lifter, targeted maintenance work can be carried out on the formed lifter head 300 or the lifter slide bar 200, effectively avoiding the scrapping of the entire lifter, thereby improving the replaceability and maintainability of the formed lifter head 300 and the lifter slide bar 200, and further effectively improving the production efficiency of the injection mold and the service life of the injection mold.

[0033] As Figure 1 , Figure 4 and Figure 5 shown, in one embodiment, an anti-fooling positioning groove 304 is formed on the side of the docking hole 301; a positioning convex portion 2110 is formed on the connecting portion 210, and the positioning convex portion 2110 is arranged in the anti-fooling positioning groove 304.

[0034] It can be understood that the positioning convex portion 2110 can prevent the assembly personnel from installing the connecting portion 210 of the lifter slide bar 200 in the wrong way, that is, realizing the correct installation of the connecting portion 210 and preventing reverse installation. Therefore, through the positioning installation of the positioning convex portion 2110 and the anti-fooling positioning groove 304, the accuracy of the assembly personnel in installing the connecting portion 210 into the docking hole 301 can be effectively improved.

[0035] As Figures 1 to 5 shown, in one embodiment, the lifter structure 10 further includes a wear-resistant block 500, the wear-resistant block 500 is embedded on the lifter slide bar 200, so that the wear-resistant surface of the wear-resistant block 500 is flush with the sliding surface of the lifter slide bar 200, and a plurality of first spherical oil grooves 201 are arranged in an array on the wear-resistant surface of the wear-resistant block 500. In one embodiment, a plurality of second spherical oil grooves 201 are arranged in an array on the sliding surface of the lifter slide bar 200, and the plurality of first spherical oil grooves 201 and the plurality of second spherical oil grooves 201 are both used for accommodating lubricant. In one embodiment, the lifter structure 10 further includes a guiding and fixing block 600, the guiding and fixing block 600 is provided with a guiding through hole 601, and the sliding surface of the lifter slide bar 200 and the wear-resistant surface of the wear-resistant block 500 are both slidably connected to the inner wall of the guiding through hole 601.

[0036] In other embodiments, the wear-resistant block 500 can also be fixed on the lifter slide bar 200 by means of clamping or screw fastening, and at the same time, the wear-resistant surface of the wear-resistant block 500 is flush with the sliding surface of the lifter slide bar 200, so as to improve the convenience of installation and disassembly of the wear-resistant block 500.

[0037] It can be understood that in this embodiment, when the assembler applies lubricant to the sliding surface of the lifter slide bar 200 and the wear-resistant surface of the wear-resistant block 500, part of the lubricant can remain in the first spherical oil groove 201 and the second spherical oil groove 201, thereby effectively improving the sliding smoothness of the sliding surface of the lifter slide bar 200 and the wear-resistant surface of the wear-resistant block 500 with the inner wall of the guiding through hole 601 respectively, that is, reducing the sliding friction between the sliding surface of the lifter slide bar 200 and the inner wall of the guiding through hole 601, and at the same time reducing the sliding friction between the wear-resistant surface of the wear-resistant block 500 and the inner wall of the guiding through hole 601.

[0038] Furthermore, as the sliding wear caused by the long-term sliding friction between the wear-resistant surface of the wear-resistant block 500 and the inner wall of the guiding through hole 601 occurs, the wear-resistant block 500 can be disassembled and replaced, so that the service life of the lifter slide bar 200 can be effectively extended.

[0039] As Figure 1 and Figure 2 shown, in one of the embodiments, the guiding and fixing block 600 is an integrally formed structure. In one of the embodiments, the formed lifter head 300 and the lifter slide bar 200 are both integrally formed structures. It can be understood that the guiding and fixing block 600, the formed lifter head 300 and the lifter slide bar 200 are convenient for manufacturing and processing, and at the same time, the guiding and fixing block 600, the formed lifter head 300 and the lifter slide bar 200 have better structural strength.

[0040] This application also provides an injection mold, including the lifter structure 10 described in any of the above embodiments.

[0041] In this embodiment, for the injection mold of the present utility model, the processing difficulty of the docking hole, the first through hole, the second through hole and the third through hole is relatively low; at the same time, the assembly convenience and practicality of the connecting portion and the docking hole are relatively good. In addition, through the installation and positioning of the fastening round pin, the connection relationship between the formed lifter head and the lifter slide bar is relatively reliable; therefore, when problems such as sliding jamming or deformation and fracture occur to the lifter, targeted maintenance work can be carried out on the formed lifter head or the lifter slide bar, effectively avoiding the scrapping of the entire lifter, thereby improving the replaceability and maintainability of the formed lifter head and the lifter slide bar, and further effectively improving the production efficiency of the injection mold and the service life of the injection mold.

[0042] Compared with the prior art, the present utility model has at least the following advantages:

[0043] The inclined ejector structure of the present utility model has relatively low processing difficulty for the docking hole, the first through hole, the second through hole and the third through hole; meanwhile, the assembly convenience and practicability of the connecting part and the docking hole are relatively good. In addition, through the installation and positioning of the fastening round pin, the connection relationship between the formed inclined ejector head and the inclined ejector slide bar is relatively reliable; therefore, when problems such as sliding jamming or deformation and fracture occur to the inclined ejector, targeted maintenance work can be carried out on the formed inclined ejector head or the inclined ejector slide bar, effectively avoiding the scrapping of the entire inclined ejector, thereby improving the replaceability and maintainability of the formed inclined ejector head and the inclined ejector slide bar, and further effectively improving the production efficiency of the injection mold and the service life of the injection mold.

[0044] The above-described embodiments merely represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. An inclined top structure, characterized in that, It includes a base, an inclined ejector slide bar, a forming inclined ejector head and a fastening round pin; One end of the inclined ejector slide bar is slidably connected to the base, and a connecting portion is formed at the other end of the inclined ejector slide bar. A first through hole is provided in the connecting portion; The forming inclined ejector head is provided with a docking hole, a second through hole and a third through hole. The docking hole is respectively communicated with the second through hole and the third through hole, and the second through hole is communicated with the third through hole; The connecting portion is arranged in the docking hole so that the centers of the first through hole, the second through hole and the third through hole are aligned; The fastening round pin is sequentially passed through the first through hole, the second through hole and the third through hole, so that the forming inclined ejector head is detachably connected to the inclined ejector slide bar.

2. The lifter structure according to claim 1, wherein, An anti-fooling positioning groove is provided on the side of the docking hole; A positioning convex portion is formed on the connecting portion, and the positioning convex portion is arranged in the anti-fooling positioning groove.

3. The lifter structure according to claim 1, wherein The inclined ejector structure further includes a wear-resistant block, and the wear-resistant block is embedded on the inclined ejector slide bar so that the wear-resistant surface of the wear-resistant block is flush with the sliding surface of the inclined ejector slide bar. A plurality of first spherical oil grooves are arranged in an array on the wear-resistant surface of the wear-resistant block.

4. The lifter structure according to claim 3, wherein A plurality of second spherical oil grooves are arranged in an array on the sliding surface of the inclined ejector slide bar, and the plurality of first spherical oil grooves and the plurality of second spherical oil grooves are all used for accommodating lubricant.

5. The inclined top structure according to claim 4, characterized in that, The inclined ejector structure further includes a guiding and fixing block, and the guiding and fixing block is provided with a guiding through hole. The sliding surface of the inclined ejector slide bar and the wear-resistant surface of the wear-resistant block are both slidably connected to the inner wall of the guiding through hole.

6. The lifter structure according to claim 5, wherein The guiding and fixing block is an integrally formed structure.

7. The lifter structure according to claim 1, wherein The forming inclined ejector head and the inclined ejector slide bar are both integrally formed structures.

8. An injection mold, characterized in that, It includes the inclined ejector structure according to any one of claims 1-7.

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