Injection mold positioning disk

Abstract

This utility model discloses a positioning plate for injection molds, belonging to the field of injection mold technology. It includes: a positioning plate body with an injection hole and a receiving groove; the receiving groove is arranged around the injection hole, and several sets of buffer components are evenly distributed along the circumference of the injection hole within it; each buffer component includes a fixed block and a movable block elastically connected to the fixed block by a spring and whose top extends into the injection hole; a removable cover plate covers the receiving groove, and the cover plate has openings corresponding to the injection hole. In this utility model, the spring is connected to the fixed block and the movable block respectively through a spring connecting post and a spring connecting groove, facilitating disassembly and installation, reducing spring replacement time, and improving maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and specifically to an injection mold positioning plate. Background Technology

[0002] In the field of injection molding, the injection mold positioning plate is a key component ensuring mold installation accuracy and the stability of the injection process. Its performance directly affects the molding quality and production efficiency of injection molded products. Utility model patent CN220864625U discloses an injection mold positioning plate that addresses the issue of impact when the injection nozzle contacts the positioning plate by designing a retractable stabilizing pad structure to buffer the impact and reduce component wear. Specifically, this patent uses a spring as the driving component for the retraction and extension of the stabilizing pad, utilizing the elastic deformation characteristics of the spring to achieve the retraction and extension of the stabilizing pad, thus providing a certain degree of buffering protection. However, due to the inevitable gradual decrease in elasticity of the spring during long-term retraction and extension, the buffering performance of the stabilizing pad decreases, affecting the effectiveness of the positioning plate. Therefore, the spring needs to be replaced periodically. However, the structural design of this patent makes the disassembly and assembly of the spring difficult, reducing replacement efficiency. Therefore, this utility model provides an injection mold positioning plate. Utility Model Content

[0003] The purpose of this invention is to provide a positioning plate for injection molds.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: A positioning plate for an injection mold includes: a positioning plate body, wherein an injection hole and a receiving groove are provided at the center of the positioning plate body, the receiving groove is arranged around the injection hole, and a plurality of buffer components are provided therein, which are evenly distributed along the circumferential direction of the injection hole. The buffer assembly includes a fixed block fixed inside the receiving groove, a movable block elastically connected to the fixed block by a spring and with its top end extending into the injection hole, and a limiting mechanism for restricting the movable block; the fixed block has a spring connecting post on its side facing the movable block, and the spring is sleeved on the spring connecting post; the top end of the movable block has an arc structure, and the two sides are provided with limiting mating parts, and the bottom surface has a spring connecting groove corresponding to the spring connecting post, with the end of the spring placed in the spring connecting groove; The limiting mechanism includes a base fixedly disposed inside the receiving groove and a stop block slidably disposed on the base and positionable. The stop block can slide to cooperate with the limiting mating part to limit the movement of the movable block in a direction away from the fixed block. The receiving groove is covered with a removable cover plate, and the cover plate has an opening corresponding to the injection hole.

[0005] Based on the above scheme and as a preferred embodiment of the above scheme, the fixed block and the movable block are connected by at least two springs.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme, the top of the movable block has a chamfered edge facing the injection head to form a bevel.

[0007] Based on the above solution and as a preferred embodiment of the above solution, the stop block is L-shaped, with its vertical arm used to cooperate with the limiting engagement part, and its horizontal arm slidingly engaged with the top surface of the base, and an elongated hole is provided on the horizontal arm; the stop block is fixedly connected to the base by a screw located in the elongated hole to achieve positioning.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme, a stepped opening is provided at the top edge of the receiving groove, and the edge of the cover plate fits into the stepped opening so that its top surface remains flush with the side of the positioning disc.

[0009] Based on the above solution and as a preferred embodiment of the above solution, the cover plate is detachably connected to the positioning disc body by screws, and the screws are engaged at the stepped opening.

[0010] Compared with the prior art, this utility model has the following advantages and beneficial effects: Several movable blocks are provided inside the injection hole. When the injection head moves to the injection hole, it contacts the top of the movable block, compressing the spring and causing the movable block to move inward, thus buffering the impact, reducing component wear, and extending component life. The movable block is located in a receiving groove with a removable cover plate, allowing for maintenance of the buffer assembly. The spring is connected to the fixed block and the movable block respectively through a spring connecting post and a spring connecting groove, facilitating disassembly and installation, reducing spring replacement time, and improving maintenance efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the structure of the present invention after the cover plate is hidden.

[0013] Figure 3 This is a schematic diagram of the buffer component structure of this utility model.

[0014] In the diagram: 1. Positioning disc body; 2. Injection hole; 3. Accommodating groove; 4. Fixing block; 5. Spring; 6. Movable block; 7. Spring connecting column; 8. Limiting mating part; 10. Base; 11. Stop block; 12. Cover plate; 13. Screw; 14. Screw. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0016] like Figure 1 and Figure 2 As shown, an injection mold positioning plate includes: a circular positioning plate body 1, which is fixedly connected to the injection mold.

[0017] The positioning plate 1 has a circular injection hole 2 and a receiving groove 3 at its center. The injection hole 2 is used to cooperate with the injection head, so that the injection head is precisely aligned with the main channel inside the mold.

[0018] The receiving groove 3 is arranged around the injection hole 2, and several sets of buffer components are evenly distributed along the circumference of the injection hole 2 inside it.

[0019] like Figure 3 As shown, the buffer assembly includes a fixed block 4 fixed inside the receiving groove 3, a movable block 6 elastically connected to the fixed block 4 by a spring 5 and whose top end extends into the injection hole 2, and a limiting mechanism for restricting the movable block 6.

[0020] The fixing block 4 is located on the side of the movable block 6 away from the injection hole 2, and is detachably fixed to the positioning plate body 1 by screws. A spring connecting post 7 is provided on the side of the fixing block 4 facing the movable block 6, and the spring 5 is sleeved on the spring connecting post 7. The spring connecting post 7 has a certain length to ensure that the spring 5 is limited when sleeved on it.

[0021] The fixed block 4 and the movable block 6 are connected by at least two springs 5 ​​to ensure the stability of the elastic connection. Preferably, there are two springs 5, symmetrically distributed along the centerline of the movable block 6.

[0022] The movable block 6 has an arc-shaped top and limiting fitting parts 8 on both sides. A spring connecting groove is formed on the bottom surface corresponding to the spring connecting post 7, and the end of the spring 5 is placed within the spring connecting groove. The arc-shaped movable block 6 is more compatible with the injection head. The limiting fitting parts 8 extend outward from the movable block body. The spring connecting groove matches the spring 5, restricting the spring 5. It cooperates with the spring connecting post 7 to position the spring 5 and allows for quick disassembly and installation of the spring 5.

[0023] The top of the movable block 6 has a chamfered edge facing the injection head to form a bevel, thereby reducing the sharpness of the contact end between the movable block 6 and the injection head.

[0024] The limiting mechanism includes a base 10 fixedly disposed inside the receiving groove 3 and a stop 11 slidably disposed on the base 10 and can be positioned. The stop 11 can slide to cooperate with the limiting engagement part 8 to limit the movement of the movable block 6 away from the fixed block 4. At the same time, the stop 11 can slide to be misaligned with the limiting engagement part 8, at which point the movement of the movable block 6 is no longer restricted.

[0025] Specifically, the stop block 11 is L-shaped, with its vertical arm engaging with the limiting fitting part 8, and its horizontal arm slidingly fitting on the top surface of the base 10. An elongated hole is provided on the horizontal arm. The stop block 11 is fixedly connected to the base 10 via a screw 13 located within the elongated hole for positioning. When the stop block 11 needs to be moved, the screw 13 is loosened, and the stop block 11 is moved. The screw 13 then moves within the elongated hole. When the stop block 11 reaches the set position, the screw 13 is tightened, securing the stop block 11 and the base 10, thus achieving the positioning of the stop block 11.

[0026] The receiving groove 3 is covered by a removable cover plate 12, which has an opening corresponding to the injection hole 2. The removable cover plate 12 facilitates the inspection and maintenance of the components inside the receiving groove 3 by the staff.

[0027] The top edge of the receiving groove 3 has a stepped opening, and the edge of the cover plate 12 fits into the stepped opening so that its top surface remains flush with the side of the positioning disc 1. The stepped opening has a limiting function for the cover plate 12.

[0028] The cover plate 12 is detachably connected to the positioning disc body 1 by screws 14, which fit into the stepped opening. There are several screws 14, evenly distributed along the circumference of the injection hole 2.

[0029] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A positioning plate for an injection mold, characterized in that, include: The positioning disc body (1) has an injection hole (2) and a receiving groove (3) at its center. The receiving groove (3) is arranged around the injection hole (2) and has several sets of buffer components evenly distributed along the circumference of the injection hole (2). The buffer assembly includes a fixed block (4) fixed inside the receiving groove (3), a movable block (6) elastically connected to the fixed block (4) by a spring (5) and whose top end extends into the injection hole (2), and a limiting mechanism for limiting the movable block (6); the fixed block (4) has a spring connecting post (7) on its side facing the movable block (6), and the spring (5) is sleeved on the spring connecting post (7); the top end of the movable block (6) has an arc structure, and the two sides are provided with limiting fitting parts (8), and the bottom surface is provided with a spring connecting groove corresponding to the spring connecting post (7), and the end of the spring (5) is placed in the spring connecting groove; The limiting mechanism includes a base (10) fixedly disposed inside the receiving groove (3) and a stop (11) slidably disposed on the base (10) and can be positioned. The stop (11) can slide to cooperate with the limiting mating part (8) to limit the movement of the movable block (6) away from the fixed block (4). The receiving groove (3) is covered with a removable cover plate (12), and the cover plate (12) has an opening corresponding to the injection hole (2).

2. The positioning plate for an injection mold according to claim 1, characterized in that, The fixed block (4) and the movable block (6) are connected by at least two springs (5).

3. The positioning plate for an injection mold according to claim 1, characterized in that, The top of the movable block (6) has a chamfered edge facing the injection head to form a bevel.

4. An injection mold positioning disk according to claim 1, wherein The stop block (11) is L-shaped, with its vertical arm used to cooperate with the limiting engagement part (8), and its horizontal arm slidingly engaged with the top surface of the base (10), and an elongated hole is provided on the horizontal arm; the stop block (11) is fixedly connected to the base (10) by a screw (13) located in the elongated hole to achieve positioning.

5. An injection mold positioning disk according to claim 1, wherein The top edge of the receiving groove (3) is provided with a stepped opening, and the edge of the cover plate (12) fits into the stepped opening so that its top surface remains flush with the side of the positioning disc (1).

6. An injection mold positioning disk according to claim 5, wherein, The cover plate (12) is detachably connected to the positioning disc body (1) by screws (14), and the screws (14) are engaged at the stepped opening.

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