Crochet hook processing device for injection molding production of plastic products

Abstract

The utility model discloses a crochet hook processing device for injection molding production of plastic products, which comprises a support block and a limit structure, the support block is provided with a positioning structure for inserting a metal rod, one side of the support block is provided with the limit structure, and the positioning structure inclines downwards towards one side of the limit structure. During use, the machining device is mounted on a workbench of a grinding machine, after the position is adjusted, a grinding wheel of the grinding machine is started, the metal rod is inserted into the positioning structure, the front end of the metal rod abuts against the limiting structure, and then the metal rod is manually rotated, so that an annular inclined groove is machined in the metal rod, and the crochet hook is formed. The machining device has the advantages of being simple in structure and convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to bottle cap injection mould production technical field especially relates to a kind of hook needle processing device for plastic product injection molding production. BACKGROUND

[0002] When bottle cap is injection molded, injection mould is needed, and hook needle is machined when injection mould is made. Hook needle is a metal rod that pulls bottle cap out of mould during injection molding. In order to improve the reliability of hook needle, the hook needle designed by our company has an annular inclined groove. Since the hook needle is machined from a finished metal rod 40, the metal rod is hard and small in diameter, which is not convenient for machining with a machine tool. Therefore, the hook needle machining device is proposed by our technical personnel in combination with the actual situation. SUMMARY

[0003] The utility model aims at providing a kind of hook needle processing device for plastic product injection molding production, which can conveniently machine annular inclined groove on metal rod to form hook needle.

[0004] To achieve the above-mentioned purpose, the utility model provides a kind of hook needle processing device for plastic product injection molding production, which comprises a supporting block and a limiting structure, the supporting block is provided with a positioning structure for inserting metal rod, the supporting block is provided with a limiting structure on one side, and the positioning structure is inclined downward to the side of the limiting structure; in use, the metal rod is inserted into the positioning structure and abuts against the limiting structure.

[0005] The limiting structure comprises a bracket and a positioning rod, the positioning rod is installed on the bracket, the bracket is connected and fixed with the supporting block, and the positioning rod is aligned with the positioning structure.

[0006] The position of the positioning rod can be adjusted.

[0007] The positioning rod is screwed on the bracket.

[0008] The bracket comprises a supporting rod, a sliding block, a vertical rod, a first spring and a screw rod, one end of the supporting rod is fixedly connected with the supporting block, the other end is fixedly connected with a screw block, a sliding groove is arranged in the supporting rod along the axial direction, the sliding block is slidably installed in the sliding groove, the vertical rod is fixedly connected with the sliding block after extending into the sliding groove, the other end is fixedly installed with the positioning rod, the first spring is installed in the sliding groove between the supporting block and the sliding block, and the screw rod is screwed with the screw block and extends into the sliding groove after being screwed, and abuts against the sliding block.

[0009] The end of the positioning rod close to the supporting block has a pointed end.

[0010] The positioning structure is a through hole.

[0011] The positioning structure is a limiting groove; the top of the supporting block is provided with a pressing plate through a screw, a second spring is arranged on the screw and located on the upper side of the pressing plate, and the limiting groove is located on the side close to the pressing plate.

[0012] The bottom of the supporting block is a slope, so that the positioning structure is inclined downward to one side of the limiting structure.

[0013] Compared with the prior art, the positioning structure has the following technical effects:

[0014] 1. The positioning structure is inclined downward to one side of the limiting structure, so that the annular inclined groove can be machined when the metal rod is rotated. When in use, the machining device is installed on the workbench of the grinding machine, the position is adjusted, the grinding wheel of the grinding machine is started, the metal rod is inserted into the positioning structure and the front end of the metal rod abuts against the limiting structure, then the metal rod is manually rotated, the annular inclined groove is machined on the metal rod, and the crochet is formed. The machining device has the characteristics of simple structure and convenient use.

[0015] 2. The position of the positioning rod can be adjusted, so that the machining position of the annular inclined groove can be adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced.

[0017] Figure 1 It is a front view structural schematic diagram of the utility model.

[0018] Figure 2 It is a right view structural schematic diagram of the utility model.

[0019] Figure 3 It is Figure 2 A-A sectional view structural schematic diagram.

[0020] Figure 4 It is Figure 3 B-B sectional view structural schematic diagram.

[0021] Figure 5 It is a use state diagram of the utility model.

[0022] LIST OF REFERENCE NUMERALS

[0023] Supporting block 10, positioning structure 11, pressing plate 12, screw 13, second spring 14, step 15, slope 16;

[0024] Limiting structure 20, support 21, support rod 211, sliding groove 212, sliding block 213, vertical rod 214, threaded block 215, first spring 216, screw rod 217, locking nut 218, positioning rod 22, pointed end 221;

[0025] Switch type magnetic seat 30, metal rod 40, grinding wheel 50. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, examples of which are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0027] Embodiment 1:

[0028] Please see Figures 1-3 A hook needle processing device for plastic product injection molding production, comprising a support block 10 and a limiting structure 20, the support block 10 is provided with a positioning structure 11 for inserting a metal rod 40, the support block 10 is provided with a limiting structure 20 on one side, the positioning structure 11 is inclined downward to the side of the limiting structure 20; in use, the metal rod 40 is inserted into the positioning structure 11 and abuts against the limiting structure 20.

[0029] In use, see Figure 5 The hook needle processing device is installed on the workbench of the grinding machine, after adjusting the position, starting the grinding wheel 50 of the grinding machine, inserting the metal rod 40 into the positioning structure 11, and making the front end of the metal rod 40 abut against the limiting structure 20, then manually rotating the metal rod 40, thereby processing an annular inclined groove on the metal rod 40, thereby forming a hook needle.

[0030] In this embodiment, see Figure 1 The limiting structure 20 comprises a support 21 and a positioning rod 22, the positioning rod 22 is installed on the support 21, the support 21 is connected and fixed with the support block 10, and the positioning rod 22 is aligned with the positioning structure 11.

[0031] Further, see Figure 3 The end of the positioning rod 22 close to the support block 10 has a pointed end 221. The pointed end 221 abutting against the front end of the metal rod 40 has a smaller contact point, reduces the contact area, and prevents the annular inclined groove from fluctuating in the axial direction due to the uneven end of the metal rod 40 during processing.

[0032] In this embodiment, the positioning structure 11 is a through hole. Further, the through hole is in an inclined state.

[0033] Embodiment 2:

[0034] The position of the positioning rod 22 can be adjusted to adjust the processing position of the annular chute based on the embodiment 1.

[0035] In one of the schemes, the positioning rod 22 is screwed on the support 21. In use, the extension length of the positioning rod 22 is adjusted by rotating the positioning rod 22.

[0036] Embodiment 3:

[0037] Different from the embodiment 2, referring to Figure 3 、 4 , the support 21 comprises a support rod 211, a sliding block 213, a vertical rod 214, a first spring 216 and a screw rod 217, one end of the support rod 211 is fixedly connected with the support block 10, the other end is fixedly connected with a screwing block 215, the support rod 211 is provided with a sliding groove 212 in the axial direction, the sliding block 213 is slidably installed in the sliding groove 212, one end of the vertical rod 214 extends into the sliding groove 212 and is fixedly connected with the sliding block 213, the other end is fixedly installed with the positioning rod 22, the first spring 216 is installed in the sliding groove 212 between the support block 10 and the sliding block 213, the screw rod 217 is screwed with the screwing block 215 and extends into the sliding groove 212 and abuts against the sliding block 213.

[0038] In use, the position of the vertical rod 214 is adjusted by rotating the screw rod 217, so as to adjust the position of the positioning rod 22.

[0039] Specifically, in Figure 3 , when the screw rod 217 is rotated to the right, the sliding block 213 slides to the right under the action of the first spring 216, at this time, the positioning rod 22 moves to the right; when the screw rod 217 is rotated to the left, the sliding block 213 slides to the left under the action of the screw rod 217, the first spring 216 is compressed, at this time, the positioning rod 22 moves to the left.

[0040] Embodiment 4:

[0041] In this embodiment, referring to Figure 1 、 2 , 3, the positioning structure 11 is a limiting groove; the top of the support block 10 is installed with a pressing plate 12 through a screw 13, the screw 13 is installed with a second spring 14 on the upper side of the pressing plate 12, and the limiting groove is located on the side close to the pressing plate 12 of the support block 10. Through the above structure, it is convenient to adapt to metal rods 40 of different diameters.

[0042] Specifically, the threaded ends of the two screws 13 are screwed with the supporting block 10 after penetrating through the pressing plate 12, and a recess is arranged on the top of the supporting block 10 and / or the bottom of the pressing plate 12, and a limiting groove is formed through the recess. Since the second spring 14 is arranged on the screw 13 at the upper side of the pressing plate 12, the metal rod 40 can be rotated after being installed into the limiting groove between the supporting block 10 and the pressing plate 12.

[0043] Embodiment 5:

[0044] The difference between the embodiment 1 and the embodiment 5 is that, in the embodiment 5, referring to Figure 1 , the bottom of the supporting block 10 is a slope 16, so that the positioning structure 11 is inclined downward to the side of the limiting structure 20.

[0045] In Figure 1 , in order to improve the stability of the supporting block 10, the bottom surface of the supporting block 10 needs to be larger, but it will cause the thickness of the supporting block 10 to be thicker, which will affect the processing of the crochet with a smaller size. Therefore, a step 15 is arranged on the side of the supporting block 10 away from the limiting structure 20, so that the supporting block 10 has a larger bottom surface, and the upper end of the supporting block 10 is narrowed, which is convenient for processing the crochet with a smaller size.

[0046] The working principle or action process of the utility model is as follows:

[0047] Referring to Figure 5 , during use, a switch type magnetic base 30 is fixed on the workbench of the grinding machine, the processing device is placed on the switch type magnetic base 30, the position of the processing device is adjusted, the switch of the switch type magnetic base 30 is turned on, and the processing device is fixed on the switch type magnetic base 30.

[0048] Then, the grinding wheel 50 of the grinding machine is started, the metal rod 40 is inserted into the positioning structure 11, and the front end of the metal rod 40 abuts against the positioning rod 22 of the limiting structure 20. Then, the metal rod 40 is manually rotated, so that the annular inclined groove is processed on the metal rod 40, and the crochet is formed.

Claims

1. A hooking device for injection molding production of plastic articles, characterized in that: The application relates to a support block (10) and a limiting structure (20), the support block (10) is provided with a positioning structure (11) for inserting a metal rod (40), one side of the support block (10) is provided with the limiting structure (20), and the positioning structure (11) is inclined downward to the side of the limiting structure (20); in the use state, the metal rod (40) is inserted into the positioning structure (11) and abuts against the limiting structure (20).

2. The hooking needle processing device for injection molding production of plastic products according to claim 1, characterized in that: The limiting structure (20) comprises a support frame (21) and a positioning rod (22), the positioning rod (22) is installed on the support frame (21), the support frame (21) is fixedly connected with the support block (10), and the positioning rod (22) is aligned with the positioning structure (11).

3. The hooking needle processing device for injection molding production of plastic products according to claim 2, characterized in that: The position of the positioning rod (22) can be adjusted.

4. The hooking needle processing device for injection molding production of plastic products according to claim 3, characterized in that: The positioning rod (22) is screw-connected with the support frame (21).

5. The hooking needle processing device for injection molding production of plastic products according to claim 3, characterized in that: The support frame (21) comprises a support rod (211), a sliding block (213), a vertical rod (214), a first spring (216) and a screw rod (217), one end of the support rod (211) is fixedly connected with the support block (10), the other end is fixedly connected with a screwing block (215), an axial sliding groove (212) is arranged in the support rod (211), the sliding block (213) is slidably installed in the sliding groove (212), one end of the vertical rod (214) is inserted into the sliding groove (212) and is fixedly connected with the sliding block (213), the other end is fixedly installed with the positioning rod (22), the first spring (216) is installed in the sliding groove (212) between the support block (10) and the sliding block (213), the screw rod (217) is screw-connected with the screwing block (215) and is inserted into the sliding groove (212) and abuts against the sliding block (213).

6. The hooking device for injection molding production of plastic products according to any one of claims 2 to 5, characterized in that: One end of the positioning rod (22) close to the support block (10) is provided with a pointed end (221).

7. The hooking needle processing device for injection molding production of plastic products according to claim 1, characterized in that: The positioning structure (11) is a through hole.

8. The hooking needle processing device for injection molding production of plastic products according to claim 1, characterized in that: The positioning structure (11) is a limiting groove, the top of the support block (10) is provided with a pressing plate (12) through a screw (13), a second spring (14) is installed on the screw (13) and located on the upper side of the pressing plate (12), and the limiting groove is located on the side close to the pressing plate (12) of the support block (10).

9. The hooking needle processing device for injection molding production of plastic products according to claim 1, characterized in that: The bottom of the support block (10) is an inclined surface (16), so that the positioning structure (11) is inclined downward to the side of the limiting structure (20).

Images