Product jacking and pulling structure

By pulling the product structure out of the way and using the ejector pin and fixture to work together, stable demoulding of the product is achieved, solving the problems of cracking and imprinting caused by traditional demoulding structures, and improving product quality and production efficiency.

CN223478114UActive Publication Date: 2025-10-28KUNSHAN TIEYING RUBBER PROD CO LTD
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Patent Information

Application Number
CN202422818127.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-10-28
Estimated Expiration
2034-11-19

AI Technical Summary

Technical Problem

Traditional product removal structures can easily cause product breakage or marks during the demoulding process, affecting product quality and production efficiency.

Method used

The product is ejected and pulled out using a top-pull structure. The ejector and dual-axis cylinder set on the bottom of the mold are combined with a clamp and an electric cylinder. The product is ejected a certain distance by the ejector and then held and pulled out by the clamp to avoid excessive pulling. The mold is rotated to achieve demoulding of each mold hole one by one.

Benefits of technology

It effectively avoids the product from being cracked and marked due to excessive pulling during the demoulding process, and improves product quality and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of product demolding, in particular to a product ejecting and pulling structure which comprises a mold, a plurality of mold holes formed in the surface of the mold in a circumferential array mode, a rotating rod arranged at the circle center of the bottom face of the mold, an ejector pin arranged below the mold, and a double-shaft air cylinder connected to one end of the ejector pin. The clamp is connected with one end of the finger air cylinder, and the electric cylinder is installed above the finger air cylinder; the device has the beneficial effects that the mold is clamped at one end of the rotating rod, the ejector pin is arranged under one mold hole in the mold, when a product is in the mold hole, the double-shaft air cylinder can eject the product in the mold hole by a certain distance through the ejector pin, then the electric cylinder drives the finger air cylinder to descend, the clamp at one end of the finger air cylinder tightly holds the product, and then the double-shaft air cylinder rapidly returns to the original position; and then the electric cylinder drives the finger air cylinder to pull out the product, so that demolding of the single product is completed, then the rotating rod rotates, the mold hole where demolding is not completed is rotated to the mold hole position where demolding is completed, and the process is repeated till demolding of all the products in the mold holes is completed.
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Description

Technical Field

[0001] This utility model relates to the field of product demolding, specifically a top-pull-out product structure. Background Technology

[0002] Product ejection structures play a crucial role in injection molding, casting, and other molding processes, directly impacting the quality of the final product and production efficiency. A well-designed ejection structure ensures that the finished product is smoothly and undamagedly removed from the mold, avoiding problems such as deformation, scratches, or cracks caused by improper demolding. This not only improves the yield rate but also reduces the cost of scrap and rework, thereby enhancing the company's economic benefits. In short, an excellent product ejection structure not only improves product quality but also increases production efficiency.

[0003] In the prior art, the traditional product removal structure mainly consists of a fixing fixture, a support structure, and a clamp. The fixing fixture is used to fix the mold in the appropriate position to ensure that it will not be displaced during the demolding process. The support structure provides the necessary stability and strength to ensure the smooth progress of the entire removal process. The clamp is usually used to hold and move the product so that it can be smoothly removed from the mold. These components work together to remove the product.

[0004] However, when using traditional product removal structures, if some products are stuck in the mold, the traditional product removal structure needs to pull the products with force. Excessive force during the pulling process may cause the products to break or leave marks, which is not conducive to ensuring product quality. Therefore, this utility model proposes a top-pull product removal structure to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a top-pull product structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a top-pull product structure, the top-pull product structure comprising: a mold, the surface of the mold having a plurality of circumferentially arrayed mold holes, a rotating rod being provided at the center of the bottom surface of the mold, an ejector pin being provided below the mold, and a dual-axis cylinder being connected to one end of the ejector pin;

[0007] The clamp is connected to one end of the finger cylinder, and an electric cylinder is installed above the finger cylinder.

[0008] Preferably, the mold is a circular plate structure, with a frame fixedly connected to the center of the bottom surface of the mold, a block inserted into the frame, the bottom surface of the block fixedly connected to one end of the rotating rod, and a rotary motor provided at the other end of the rotating rod.

[0009] Preferably, one end of the ejector pin is provided with a fixing fixture, which is connected to one end of the dual-axis cylinder. The other end of the dual-axis cylinder is fixedly connected to the surface of the stabilizing plate, and fixing plates are provided on both sides of one end of the fixing fixture.

[0010] Preferably, there are two sets of fixing plates, and a connecting plate is fixedly connected between the fixing plates. A rotary motor is provided on the surface of the connecting plate. One end of the fixing plate is fixedly installed on the surface of the stabilizing plate, and a limit frame is provided at the other end of the fixing plate. A sliding groove is opened on the side of the limit frame, and a mold is inserted into the sliding groove. The mold can move freely in the sliding groove.

[0011] Preferably, the stabilizing plate is fixedly installed on the upper surface of the support frame base plate by fixing screws, and a support foot is fixedly installed at the corner of the lower surface of the support frame base plate, with a suction cup at the bottom of the support foot.

[0012] Preferably, the clamp is located directly above the mold hole where demolding is being performed. One end of the finger cylinder is provided with a gripper, and the clamp is fixed to the surface of the gripper by a fixing screw. The other end of the finger cylinder is provided with an electric cylinder, which is fixedly installed on the top of the support frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The product-pull-out structure proposed in this utility model involves clamping the mold at one end of a rotating rod. A ejector pin is positioned directly below one of the mold holes in the mold, allowing it to be inserted into the mold hole. When the product is inside the mold hole, a dual-axis cylinder uses the ejector pin to push the product out of the mold hole a certain distance. Then, an electric cylinder drives a finger cylinder to descend, causing a clamp at one end to hold the product tightly. The dual-axis cylinder then quickly returns to its original position, and the electric cylinder drives the finger cylinder again to pull the product out, thus completing the demolding of a single product. The rotating rod then rotates, moving any undemolded mold holes to the position of the previously demolded mold holes. This process is repeated until all products inside the mold holes are demolded, avoiding the problem of product breakage and marks caused by excessive pulling during product removal. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the back of the structure of this utility model;

[0017] Figure 3 This is an exploded view of the internal structure of this utility model.

[0018] Figure 4 This is an exploded view of the overall structure of the mold of this utility model;

[0019] Figure 5 This is an exploded view of the overall structure of the structural fixture of this utility model.

[0020] In the diagram: 1. Mold; 2. Mold hole; 3. Rotating rod; 4. Ejector pin; 5. Twin-axis cylinder; 6. Fixture;

[0021] 7. Finger cylinder; 8. Electric cylinder; 9. Frame; 10. Block; 11. Rotary motor; 12. Fixture; 13. Fixing plate; 14. Stabilizing plate; 15. Limiting frame; 16. Support frame; 17. Support foot; 18. Gripper. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Example 1: Please refer to Figure 1-Figure 5 This utility model provides a technical solution: a top-pull product structure, the top-pull product structure includes: a mold 1, the surface of the mold 1 is provided with a plurality of circumferential array mold holes 2, a rotating rod 3 is provided at the center of the bottom surface of the mold 1, an ejector pin 4 is provided below the mold 1, and one end of the ejector pin 4 is connected to a double-shaft cylinder 5.

[0024] The clamp 6 is connected to one end of the finger cylinder 7, and an electric cylinder 8 is installed above the finger cylinder 7.

[0025] In use, mold 1 is clamped at one end of rotating rod 3. Ejector pin 4 is set directly below mold hole 2 in mold 1. Ejector pin 4 can be inserted into mold hole 2. When the product is in mold hole 2, dual-axis cylinder 5 can push the product in mold hole 2 out a certain distance through ejector pin 4. Then electric cylinder 8 drives finger cylinder 7 to descend and clamp the product with clamp 6 at one end. Then dual-axis cylinder 5 quickly returns to its original position. Electric cylinder 8 drives finger cylinder 7 to pull out the product, thus completing the demolding of a single product. Then rotating rod 3 rotates to rotate the mold hole 2 that has not been demolded to the position of the previous mold hole 2 that has been demolded. The above process is repeated until all products in mold hole 2 are demolded. This avoids the problem of product breakage and imprint caused by excessive pulling of the product when taking it out.

[0026] Example 2: Based on Example 1, to avoid damage to the product caused by excessive force when removing the product, an ejector pin 4 is provided. A fixing fixture 12 is provided at one end of the ejector pin 4. The fixing fixture 12 is connected to one end of the dual-axis cylinder 5. The other end of the dual-axis cylinder 5 is fixedly connected to the surface of the stabilizing plate 14. Fixing plates 13 are provided on both sides of one end of the fixing fixture 12. When demolding the product in the mold hole 2, one end of the ejector pin 4 can be inserted into the mold hole 2 to push the product in the mold hole 2 out a certain distance, which paves the way for the product to be easily removed from the mold 1 later.

[0027] The clamp 6 is located directly above the mold hole 2 where demolding is being carried out. One end of the finger cylinder 7 is equipped with a gripper 18, and the clamp 6 is fixed to the surface of the gripper 18 by a fixing screw. The other end of the finger cylinder 7 is equipped with an electric cylinder 8, which is fixedly installed on the top of the support frame 16. After the product is pushed out a certain distance by the ejector pin 4, the electric cylinder 8 drives the finger cylinder 7 to make the clamp 6 hold the product tightly. At the same time, the dual-axis cylinder 5 quickly returns to its original position and then pulls the product outward, so as to avoid damage to the product during the process of pulling the product out of the mold 1 with a large force.

[0028] Example 3: Based on Example 2, a mold 1 is provided to demold all products in the mold holes 2 of the mold 1. The mold 1 is a circular plate structure. A retaining frame 9 is fixedly connected to the center of the bottom surface of the mold 1. A retaining block 10 is inserted into the retaining frame 9. The bottom surface of the retaining block 10 is fixedly connected to one end of the rotating rod 3. A rotary motor 11 is provided at the other end of the rotating rod 3. Two sets of fixing plates 13 are provided. A connecting plate is fixedly connected between the fixing plates 13. The rotary motor 11 is provided on the surface of the connecting plate. One end of the fixed plate 13 is fixedly installed on the surface of the stabilizing plate 14, and the other end of the fixed plate 13 is provided with a limiting frame 15. The side of the limiting frame 15 is provided with a sliding groove, and the mold 1 is inserted into the sliding groove. The mold 1 can move freely in the sliding groove. The mold 1 is inserted into the limiting frame 15. The rotating rod 3 at the bottom of the mold 1 can make the mold 1 rotate within the limiting frame 15. When the product in one mold hole 2 is demolded, the rotary motor 11 drives the rotating rod 3 to rotate, thereby rotating the mold holes 2 in the mold 1 that have not been demolded in turn to demold them.

[0029] The stabilizing plate 14 is fixedly installed on the upper surface of the base plate of the support frame 16 by fixing screws. The support foot 17 is fixedly installed at the corner of the lower surface of the base plate of the support frame 16, and the bottom of the support foot 17 is provided with a suction cup. The suction cup at one end of the support foot 17 at the bottom of the support frame 16 will fix the whole in the required position more stably, so as to complete the demolding of the product better and more stably.

[0030] In actual use, mold 1 is clamped at one end of rotating rod 3. Ejector pin 4 is set directly below mold hole 2 in mold 1. Ejector pin 4 can be inserted into mold hole 2. When the product is in mold hole 2, dual-axis cylinder 5 can push the product in mold hole 2 out a certain distance through ejector pin 4. Then electric cylinder 8 drives finger cylinder 7 to descend and clamp the product with clamp 6 at one end. Then dual-axis cylinder 5 quickly returns to its original position. Electric cylinder 8 drives finger cylinder 7 to pull out the product, thus completing the demolding of a single product. Then rotating rod 3 rotates to rotate the mold hole 2 that has not been demolded to the position of the previous mold hole 2 that has been demolded. The above process is repeated until all products in mold hole 2 are demolded. This avoids the problem of product breakage and imprint caused by excessive pulling of the product when taking it out.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A top-pull product structure, characterized in that: The top-pull product structure includes: a mold (1), a mold (1) with multiple circumferential array mold holes (2) on the surface of the mold (1), a rotating rod (3) at the center of the bottom surface of the mold (1), an ejector pin (4) at the bottom of the mold (1), and a double-axis cylinder (5) connected to one end of the ejector pin (4). A clamp (6) is connected to one end of a finger cylinder (7), and an electric cylinder (8) is installed above the finger cylinder (7).

2. The top-pull-out product structure according to claim 1, characterized in that: The mold (1) is a circular plate structure. A frame (9) is fixedly connected to the center of the bottom surface of the mold (1). A block (10) is inserted into the frame (9). The bottom surface of the block (10) is fixedly connected to one end of the rotating rod (3). A rotary motor (11) is provided at the other end of the rotating rod (3).

3. The top-pull-out product structure according to claim 1, characterized in that: One end of the ejector pin (4) is provided with a fixing fixture (12), which is connected to one end of the dual-axis cylinder (5). The other end of the dual-axis cylinder (5) is fixedly connected to the surface of the stabilizing plate (14). Fixing plates (13) are provided on both sides of one end of the fixing fixture (12).

4. The top-pull-out product structure according to claim 3, characterized in that: The fixed plate (13) is provided in two sets, and a connecting plate is fixedly connected between the fixed plates (13). A rotary motor (11) is provided on the surface of the connecting plate. One end of the fixed plate (13) is fixedly installed on the surface of the stabilizing plate (14), and a limit frame (15) is provided on the other end of the fixed plate (13). A sliding groove is provided on the side of the limit frame (15), and a mold (1) is inserted into the sliding groove. The mold (1) can move freely in the sliding groove.

5. The top-pull-out product structure according to claim 4, characterized in that: The stabilizing plate (14) is fixedly installed on the upper surface of the bottom plate of the support frame (16) by a fixing screw. A support foot (17) is fixedly installed at the corner of the bottom surface of the support frame (16), and a suction cup is provided at the bottom of the support foot (17).

6. The top-pull-out product structure according to claim 1, characterized in that: The clamp (6) is located directly above the mold hole (2) that is being demolded. One end of the finger cylinder (7) is provided with a gripper (18). The clamp (6) is fixed to the surface of the gripper (18) by a fixing screw. The other end of the finger cylinder (7) is provided with an electric cylinder (8). The electric cylinder (8) is fixedly installed on the top of the support frame (16).