Anti-breaking structure of pull rod of injection molding machine

Abstract

The utility model discloses an anti-breaking structure of an injection molding machine pull rod, which is arranged at the joint of the pull rod and a mounting block, and comprises a connecting assembly, a positioning assembly and a limiting assembly, the connecting assembly comprises a sliding block arranged at one side of the pull rod, one side of the sliding block is fixedly connected with a connecting ring, and the outer wall of the mounting block is sleeved with a positioning ring; the outer wall of the positioning ring is sleeved with the connecting ring, and a rotating piece is arranged at the joint of the sliding block and the pull rod. Through the design of the sliding block, the connecting ring, the positioning ring, the rotating piece, the positioning assembly and the limiting assembly, the arranged positioning ring is fixedly arranged on the mounting block in a sleeving mode, and after the pull rod and the mounting block are connected, the pull rod and the mounting block are limited through the positioning assembly; and therefore, the pull rod is prevented from moving towards one side far away from or close to the mounting block, threads on the pull rod are prevented from being extruded, and the situation that the threads on the pull rod are fatigued is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of injection molding machine parts, and in particular to an anti-breakage structure for injection molding machine tie rods. Background Technology

[0002] The tie rod is a key component of the injection molding machine. It clamps the mold and stretches the mold to ultimately lock it in place.

[0003] The existing tie rod is directly connected to the front and rear mold plates of the injection molding machine via threads. During use, the tie rod presses the mold together. However, after prolonged use, the threads on the tie rod become fatigued due to the pressure from the mold plates, causing the tie rod to break at the point of fatigue. Therefore, this solution proposes an anti-breakage structure for the injection molding machine tie rod to solve the above problem. Utility Model Content

[0004] The purpose of this invention is to provide an anti-breakage structure for injection molding machine tie rods to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-breakage structure for an injection molding machine tie rod, installed at the connection between the tie rod and the mounting block, comprising:

[0006] A connecting assembly includes a sliding block disposed on one side of a pull rod, a connecting ring fixedly connected to one side of the sliding block, a positioning ring sleeved on the outer wall of the mounting block, the connecting ring sleeved on the outer wall of the positioning ring, and a rotating component disposed at the connection between the sliding block and the pull rod.

[0007] A positioning component is disposed at the connection between the sliding block and the positioning ring, and the positioning component is used to limit the movement of the pull rod;

[0008] A limiting component is disposed at the connection between the connecting ring and the positioning ring, and the limiting component is used to limit the rotation of the connecting ring.

[0009] Preferably, the sliding block has a through hole in the middle, the rotating component includes a rotating ring sleeved on one side of the pull rod, the inner wall of the through hole has a rotating groove, and the rotating ring is inserted into the rotating groove.

[0010] Preferably, the positioning component includes:

[0011] A connecting rod is fixedly connected to one side of the sliding block. A sliding groove is provided on one side of the positioning ring, and the connecting rod is inserted into the inside of the sliding groove.

[0012] A positioning post is fixedly connected to one end of a connecting rod. A positioning groove is provided on the inner wall of one side of the sliding groove, and the positioning post is inserted into the inside of the positioning groove.

[0013] Preferably, a through hole is provided on one side of the positioning ring, and the through hole communicates with the positioning groove.

[0014] Preferably, the limiting component includes:

[0015] A locking hole is provided at the top of the connecting ring;

[0016] A locking block, wherein the locking block is inserted and connected to the top of the positioning ring, and the locking block is inserted and connected to the top of the locking hole;

[0017] A pusher is disposed at the bottom of the card block.

[0018] Preferably, the pushing member includes a pushing block fixedly connected to the bottom end of the card block, and the bottom end of the pushing block is fixedly connected to the elastic block.

[0019] Preferably, the top of the positioning ring has a cavity, the pushing block is inserted into the cavity, and the elastic block is fixedly connected to the inner wall at the bottom of the cavity.

[0020] The technical effects and advantages of this utility model are as follows:

[0021] This utility model, through the design of a sliding block, connecting ring, positioning ring, rotating component, positioning assembly, and limiting assembly, sets the positioning ring to be fixedly sleeved on the mounting block. After the pull rod is connected to the mounting block, the positioning assembly further restricts the pull rod to the mounting block, thereby preventing the pull rod from moving away from or closer to the mounting block, preventing the threads on the pull rod from being squeezed, and thus preventing thread fatigue on the pull rod. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0023] Figure 2 This is a schematic diagram of a portion of the three-dimensional structure of this utility model.

[0024] Figure 3 This is a front cross-sectional view of the present invention.

[0025] Figure 4 This utility model Figure 3 Enlarged structural diagram of section A.

[0026] In the diagram: 1. Pull rod; 2. Mounting block; 3. Connecting assembly; 301. Sliding block; 302. Connecting ring; 303. Positioning ring; 4. Positioning assembly; 401. Connecting rod; 402. Positioning post; 403. Sliding groove; 404. Through hole; 405. Positioning groove; 5. Restricting assembly; 501. Locking hole; 502. Locking block; 503. Pushing block; 504. Cavity; 505. Elastic block; 6. Rotating component; 601. Rotating ring; 602. Rotating groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] This utility model provides, for example Figures 1-4 Shown:

[0029] Example 1:

[0030] A breakage prevention structure for an injection molding machine tie rod, installed at the connection between the tie rod 1 and the mounting block 2, includes:

[0031] The connecting component 3 includes a sliding block 301 disposed on one side of the pull rod 1, a connecting ring 302 fixedly connected to one side of the sliding block 301, a positioning ring 303 sleeved on the outer wall of the mounting block 2, the connecting ring 302 sleeved on the outer wall of the positioning ring 303, and a rotating part 6 disposed at the connection between the sliding block 301 and the pull rod 1.

[0032] Positioning component 4 is located at the connection between sliding block 301 and positioning ring 303, and is used to limit the movement of pull rod 1.

[0033] Restriction component 5 is disposed at the connection between connecting ring 302 and positioning ring 303, and restriction component 5 is used to restrict the rotation of connecting ring 302;

[0034] The sliding block 301 has a through hole in the middle. The rotating component 6 includes a rotating ring 601 sleeved on one side of the pull rod 1. The inner wall of the through hole has a rotating groove 602, and the rotating ring 601 is inserted into the rotating groove 602.

[0035] It should be noted that the mounting block 2 is fixedly connected to the front and rear templates of the injection molding machine. When it is necessary to connect the tie rod 1 to the front and rear templates, one end of the tie rod 1 is threaded through and connected to the mounting block 2. The sliding block 301 has a circular longitudinal section. The sliding block 301 is sleeved on one side of the tie rod 1. The rotating ring 601 is fixedly sleeved on one side of the tie rod 1. The rotating groove 602 is adapted to the rotating ring 601. When the rotating ring 601 is inserted into the rotating groove 602, the two sides of the rotating ring 601 are respectively connected to the two sides of the rotating groove 602. The inner wall is fitted together, and the movement of the sliding block 301 is restricted by the rotating ring 601 in a fixed position. Through the ring design, the sliding block 301 can rotate on the rotating ring 601 through the rotating groove 602. The positioning ring 303 is fixedly sleeved on the mounting block 2. After the pull rod 1 is connected to the mounting block 2, the positioning component 4 is used to restrict the pull rod 1 and the mounting block 2, thereby preventing the pull rod 1 from moving away from or closer to the mounting block 2, and preventing the threads on the pull rod 1 from being squeezed, thereby preventing the threads on the pull rod 1 from fatigue.

[0036] Specifically, positioning component 4 includes:

[0037] The connecting rod 401 is fixedly connected to one side of the sliding block 301. A sliding groove 403 is provided on one side of the positioning ring 303, and the connecting rod 401 is inserted into the inside of the sliding groove 403.

[0038] The positioning post 402 is fixedly connected to one end of the connecting rod 401. The inner wall of one side of the sliding groove 403 is provided with a positioning groove 405, and the positioning post 402 is inserted into the inside of the positioning groove 405.

[0039] Specifically, a through hole 404 is provided on one side of the positioning ring 303, and the through hole 404 is connected to the positioning groove 405.

[0040] It should be noted that the connecting rod 401 is adapted to the sliding groove 403, allowing the connecting rod 401 to slide inside the sliding groove 403; the positioning groove 405 is adapted to the positioning post 402, allowing the positioning post 402 to slide inside the positioning groove 405. The diameter of the positioning post 402 is larger than the width of the sliding groove 403, preventing the positioning post 402 from passing through the sliding groove 403 and exiting the positioning groove 405. When the pull rod 1 moves away from or towards the mounting block 2... When the rod moves, the pull rod 1 will drive the sliding block 301, the connecting rod 401 and the positioning post 402 to move. The positioning post 402 is restricted by the positioning groove 405 on the mounting block 2 and cannot move. Thus, by restricting the movement of the positioning post 402, the position of the pull rod 1 is restricted, so that the pull rod 1 cannot move away from or towards the mounting block 2. The through hole 404 is adapted to the positioning post 402, so that the positioning post 402 can pass through the through hole 404 into the interior of the positioning groove 405.

[0041] Furthermore, during use, the positioning pin 402 is first inserted into the positioning groove 405 through the insertion hole 404, and then the connecting ring 302 is rotated to separate the positioning pin 402 from the insertion hole 404. The position of the connecting ring 302 is then fixed by the limiting component 5.

[0042] Example 2:

[0043] Restriction component 5 is applied to the anti-breakage structure in Embodiment 1;

[0044] Specifically, limiting component 5 includes:

[0045] The card slot 501 is located on the top of the connecting ring 302;

[0046] The locking block 502 is inserted into the top of the positioning ring 303 and the locking block 502 is inserted into the top of the locking hole 501;

[0047] A pusher is located at the bottom of the card block 502.

[0048] It should be noted that the slot 501 is adapted to the slot 502. The slot 502 is inserted into the top of the positioning ring 303. When it is necessary to restrict the position of the connecting ring 302, the slot 502 is moved upward by the pusher and the top of the slot 502 is inserted into the slot 501 on the connecting ring 302. The blocking effect of the slot 502 prevents the connecting ring 302 from rotating. When it is necessary to move the position of the connecting ring 302, the slot 502 can be moved out of the slot 501 by pressing the slot 502 with a finger or other object.

[0049] Specifically, the pushing component includes a pushing block 503 fixedly connected to the bottom end of the locking block 502, and the bottom end of the pushing block 503 is fixedly connected to the elastic block 505.

[0050] Specifically, the top of the positioning ring 303 has a cavity 504, the pushing block 503 is inserted into the cavity 504, and the elastic block 505 is fixedly connected to the inner wall at the bottom of the cavity 504.

[0051] It should be noted that the cavity 504 is adapted to the push block 503, allowing the push block 503 to slide inside the cavity 504. The elastic block 505 is made of rubber, which has deformable properties. During use, it is used to push the push block 503 toward the side of the locking block 502, thereby preventing the locking block 502 from moving out of the locking hole 501 due to equipment shaking or other reasons.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A breakage prevention structure for an injection molding machine tie rod, installed at the connection between the tie rod (1) and the mounting block (2), characterized in that, include: The connecting component (3) includes a sliding block (301) disposed on one side of the pull rod (1), a connecting ring (302) fixedly connected to one side of the sliding block (301), a positioning ring (303) sleeved on the outer wall of the mounting block (2), the connecting ring (302) sleeved on the outer wall of the positioning ring (303), and a rotating part (6) provided at the connection between the sliding block (301) and the pull rod (1). Positioning component (4), which is disposed at the connection between sliding block (301) and positioning ring (303), is used to restrict the movement of pull rod (1); A limiting component (5) is disposed at the connection between the connecting ring (302) and the positioning ring (303), and the limiting component (5) is used to limit the rotation of the connecting ring (302).

2. The anti-breakage structure for an injection molding machine tie rod according to claim 1, characterized in that, The sliding block (301) has a through hole in the middle, and the rotating component (6) includes a rotating ring (601) sleeved on one side of the pull rod (1). The inner wall of the through hole has a rotating groove (602), and the rotating ring (601) is inserted into the interior of the rotating groove (602).

3. The anti-breakage structure for an injection molding machine tie rod according to claim 1, characterized in that, The positioning component (4) includes: A connecting rod (401) is fixedly connected to one side of a sliding block (301). A sliding groove (403) is provided on one side of the positioning ring (303), and the connecting rod (401) is inserted into the inside of the sliding groove (403). A positioning post (402) is fixedly connected to one end of a connecting rod (401). A positioning groove (405) is provided on the inner wall of one side of the sliding groove (403), and the positioning post (402) is inserted into the inside of the positioning groove (405).

4. The anti-breakage structure for an injection molding machine tie rod according to claim 3, characterized in that, The positioning ring (303) has an insertion hole (404) on one side, and the insertion hole (404) communicates with the positioning groove (405).

5. The anti-breakage structure for an injection molding machine tie rod according to claim 1, characterized in that, The limiting component (5) includes: A slot (501) is provided on the top of the connecting ring (302); A locking block (502) is inserted into the top of the positioning ring (303) and the locking block (502) is inserted into the top of the locking hole (501); A pusher is disposed at the bottom of the card block (502).

6. The anti-breakage structure for an injection molding machine tie rod according to claim 5, characterized in that, The pusher includes a push block (503) fixedly connected to the bottom end of the locking block (502), and the bottom end of the push block (503) is fixedly connected to the elastic block (505).

7. The anti-breakage structure for an injection molding machine tie rod according to claim 6, characterized in that, The top of the positioning ring (303) has a cavity (504), the pushing block (503) is inserted into the inside of the cavity (504), and the elastic block (505) is fixedly connected to the inner wall at the bottom of the cavity (504).

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