Novel slide inner ejector plate mechanism

By setting up a new type of thimble plate mechanism driven by the cylinder body in the row position, the problem of easy jamming in the traditional structure is solved, and more efficient and precise mold operation is achieved, which is suitable for the production of complex products.

CN223045073UActive Publication Date: 2025-07-01HONGLIDA MOULD TECH (ZHONGSHAN) CO LTD
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Patent Information

Application Number
CN202422552375.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-22
Publication Date
2025-07-01
Estimated Expiration
2034-10-22

AI Technical Summary

Technical Problem

The traditional thimble plate mechanism in the row position is prone to get stuck, resulting in a longer production cycle, a lower production efficiency, and an increase in maintenance and maintenance time.

Method used

A new type of in-line thimble plate mechanism is designed, which adopts the cylinder body drive, combined with the return spring and the induction switch to achieve more flexible and precise mold opening and closing movement.

Benefits of technology

It improves the smoothness of mold production and the stability of product production, improves production efficiency, is suitable for more complex products, and has a precision mold structure and accelerates molding efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223045073U_ABST
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Abstract

The utility model discloses a novel slide internal ejector plate mechanism, which belongs to the technical field of injection molds and comprises a front mold fixing plate and a rear mold fixing plate, two slide seats are arranged on the upper surface of the rear mold fixing plate, ejector plate mechanism bodies are arranged in the two slide seats, and the ejector plate mechanism bodies are arranged in the slide seats. Slide inserts are arranged on the left sides of the two slide seats, and slide pressing plates are arranged on the upper surface of the rear mold fixing plate and located on the front surfaces and the rear surfaces of the two slide seats; the ejector plate mechanism body is arranged in the slide seat, so that the mold production is smooth, the stability of product production is guaranteed to a certain degree, the production efficiency is improved, and compared with a traditional structure, the structure is derived from the driving force of the oil cylinder body, so that the mold opening and closing actions of the mold structure are more flexible, and the slide seat can be suitable for more complex products; and meanwhile, the mold is precise in structure, the forming efficiency is improved, traditional inherent thinking is broken, and mold forms are diversified.
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Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a novel ejector plate mechanism within a slide. Background Art

[0002] As the market's requirements for product quality and appearance continue to increase, plastic products need to avoid defects such as tearing and deformation during demoulding. The ejector plate mechanism is set in the slide position to more accurately control the direction and magnitude of the demoulding force, so that the product is more evenly stressed during demoulding, thereby reducing product surface quality problems caused by improper demoulding, such as scratches and dents, and improving the appearance quality and overall quality of the product.

[0003] Traditionally, this type of product structure generally uses a spring pin on the slide or a shovel machine to drive the inclined top to release. The traditional structure is easy to get stuck during production, and it takes more time to repair and maintain the upper and lower molds, which may lead to longer production cycles, reduced production efficiency, defective products and other factors. Utility Model Content

[0004] Purpose of the utility model: The purpose of the utility model is to provide a solution to the problem that the ejector plate mechanism in the traditional slide is easy to get stuck during production, which requires more time to repair and maintain the upper and lower molds, thereby possibly prolonging the production cycle.

[0005] Technical solution: A novel mechanism for an ejector plate inside a slide, comprising a front mold fixing plate and a rear mold fixing plate, wherein two slide seats are arranged on the upper surface of the rear mold fixing plate, and the ejector plate mechanism body is arranged inside the two slide seats, and slide inserts are arranged on the left sides of the two slide seats, and slide pressure plates are arranged on the upper surface of the rear mold fixing plate and on the front and rear surfaces of the two slide seats, and spring pressure plates are arranged on the side of the multiple slide pressure plates and away from the two slide seats, and cylinder bodies are arranged on the right sides of the two slide seats, and the left ends of the output shafts of the two cylinder bodies are fixedly connected to cylinder connecting rods, and the left ends of the two cylinder connecting rods are respectively fixedly connected to the two slide seats.

[0006] Furthermore, the outer side wall of the front mold fixing plate is provided with two sliding wear-resistant plates.

[0007] Furthermore, a cylinder seat is fixedly connected to the right side of the rear mold fixing plate and below the two cylinder bodies.

[0008] Further, the ejector plate mechanism body includes an ejector plate body. Oblique ejector seats are fixedly connected to the left sides of the two ejector plate bodies. Oblique ejector bodies are arranged on the left sides of the two oblique ejector seats. Reset rods are fixedly connected to the front and rear of the left sides of the two ejector plate bodies and on the front and rear sides of the two oblique ejector seats. Return springs are sleeved on the outer walls of the plurality of reset rods. Latch mechanisms one are arranged on the front and rear sides of the two ejector plate bodies. Latch mechanisms two are arranged on the outer sides of the plurality of latch mechanisms one. Latch springs are arranged inside the plurality of latch mechanisms two.

[0009] Further, two limit screws are arranged below the two oblique ejector seats and on the left sides of the two ejector plate bodies.

[0010] Further, connecting plates are fixedly connected to the right sides of the oil cylinder seats and on the opposite sides of the two oil cylinder bodies. Proximity switches one are arranged on the left sides of the front surfaces of the two connecting plates. Proximity switches two are arranged on the right sides of the front surfaces of the two connecting plates. Sensing rods are fixedly connected to the right sides of the two slider seats and on the opposite sides of the two oil cylinder connecting rods.

[0011] Beneficial effects:

[0012] By arranging the ejector plate mechanism body inside the slider seat, the smooth production of the mold is ensured, the stability of product production is guaranteed to a certain extent, and the production efficiency is improved. Compared with the traditional structure, this structure is driven by the driving force of the oil cylinder body, making the mold structure more flexible in the opening and closing actions, and can be applied to more complex products. At the same time, this mold structure is precise and can accelerate the molding efficiency, breaking the traditional fixed thinking and making the mold forms more diverse. Description of the drawings

[0013] Figure 1 is a schematic diagram of the moving mold structure of the present invention;

[0014] Figure 2 is a schematic diagram of the fixed mold structure of the present invention;

[0015] Figure 3 is a schematic diagram of the ejector plate structure with the slider inside the present invention;

[0016] Figure 4 is a detailed schematic diagram of the ejector plate mechanism body in the unmoved state of the present invention;

[0017] Figure 5 is a detailed schematic diagram of the ejector plate mechanism body in the moving state of the present invention;

[0018] Figure 6 is a detailed schematic diagram of the ejector plate mechanism body after movement of the present invention.

[0019] In the figure: 1. Front mold fixed plate; 2. Rear mold fixed plate; 3. Slide block seat; 4. Thimble plate mechanism body; 5. Slide block insert; 6. Slide block pressure plate; 7. Spring pressure plate; 8. Oil cylinder body; 9. Oil cylinder connecting rod; 10. Slide block wear plate; 11. Oil cylinder seat; 12. Connecting plate; 13. Inductive switch 1; 14. Inductive switch 2; 15. Inductive rod; 401. Thimble plate body; 402. Lifter seat; 403. Lifter body; 404. Return rod; 405. Return spring; 406. Locking mechanism 1; 407. Locking mechanism 2; 408. Locking mechanism spring; 409. Limit screw. Detailed implementation mode

[0020] To make the technical solution of the present utility model clearer, the following further describes the present utility model in detail with reference to the accompanying drawings and specific embodiments.

[0021] Embodiment 1

[0022] As Figures 1-6 shown, a new type of slide block with an internal thimble plate mechanism is provided, including a front mold fixed plate 1 and a rear mold fixed plate 2. There are two slide block seats 3 arranged on the upper surface of the rear mold fixed plate 2. The inside of both slide block seats 3 is provided with a thimble plate mechanism body 4. Slide block inserts 5 are arranged on the left side of both slide block seats 3. Slide block pressure plates 6 are arranged on the upper surface of the rear mold fixed plate 2 and on the front and rear surfaces of both slide block seats 3. Spring pressure plates 7 are arranged on the side of multiple slide block pressure plates 6 away from both slide block seats 3. Oil cylinder bodies 8 are arranged on the right side of both slide block seats 3. The left ends of the output shafts of both oil cylinder bodies 8 are fixedly connected with oil cylinder connecting rods 9. The left ends of both oil cylinder connecting rods 9 are fixedly connected to both slide block seats 3 respectively. The thimble plate mechanism body 4 includes a thimble plate body 401. Lifter seats 402 are fixedly connected to the left sides of both thimble plate bodies 401. Lifter bodies 403 are arranged on the left sides of both lifter seats 402. Return rods 404 are fixedly connected to the left sides of both thimble plate bodies 401 and in front of and behind both lifter seats 402. Return springs 405 are sleeved on the outer walls of multiple return rods 404. Locking mechanisms 1 406 are arranged on the front and rear sides of both thimble plate bodies 401. Locking mechanisms 2 407 are arranged on the outside of multiple locking mechanisms 1 406. Locking mechanism springs 408 are arranged inside multiple locking mechanisms 2 407;

[0023] Under the action of the set buckle spring 408, the second buckle 407 moves forward by 4 mm. After clamping the thimble plate body 401, the oil cylinder body 8 drives the slider seat 3 to move through the oil cylinder connecting rod 9. Since the thimble plate body 401 does not move and moves relative to the slider seat 3, the lifter block 402 fixed on the thimble plate body 401 has a forward force, and the lifter body 403 will move along the T-slot on the lifter block 402, so that the lifter body 403 disengages the buckle position of the product. At the same time, the slider seat 3 drives the first buckle 406 to retreat by 37 mm, and the second buckle 407 retreats by 4 mm. After the thimble plate body 401 is unfastened, the return spring 405 will push the thimble plate body 401 to reset.

[0024] As Figures 4-6 shown, two limit screws 409 are provided on the left side of the two thimble plate bodies 401 and below the two lifter blocks 402;

[0025] By providing the two limit screws 409, it is possible to prevent the lifter block 402 from colliding with or interfering with other components of the mold, ensuring the stable operation of the entire mechanism.

[0026] As Figure 1 、 Figure 3 and Figure 6 shown, connecting plates 12 are fixedly connected to the right side of the oil cylinder seat 11 and on the opposite sides of the two oil cylinder bodies 8. Inductive switch 13 is provided on the left side of the front surface of the two connecting plates 12, and inductive switch 14 is provided on the right side of the front surface of the two connecting plates 12. Inductive rods 15 are fixedly connected to the right sides of the two slider seats 3 and on the opposite sides of the two oil cylinder connecting rods 9;

[0027] When the return spring 405 pushes the thimble plate body 401 to reset, the oil cylinder body 8 drives the slider seat 3 to continue to retreat by 100 mm through the oil cylinder connecting rod 9. It stops directly after the inductive rod 15 contacts the inductive switch 14. At the same time, the return spring 405 will also push the thimble plate body 401 until it resets to the plane of the slider seat 3 and stops. The slider seat 3 is in the core-in state through the connection of the inductive rod 15 and the inductive switch 13. Under the action of the oil cylinder body 8, the slider seat 3 is driven through the oil cylinder connecting rod 9. After the slider seat 3 drives the inductive rod 15 to retreat by a distance of 100 mm and contacts the inductive switch 14, it is in the core-out state at this time.

[0028] As Figure 2 shown, two slider wear plates 10 are provided on the outer side wall of the front mold fixing plate 1;

[0029] During the mold opening and closing process of the injection mold, since the slider base 3 will rub against the front mold fixing plate 1 during movement, without protective measures, long-term friction will cause wear of the front mold fixing plate 1 and the slider base 3, reducing the precision and service life of the mold. By setting two slider wear plates 10, this kind of friction can be effectively reduced, the degree of wear can be decreased, and the front mold fixing plate 1 and the slider base 3 can be protected.

[0030] As Figure 1 shown, a cylinder seat 11 is fixedly connected to the right side of the rear mold fixing plate 2 and below the two cylinder bodies 8.

[0031] The cylinder seat 11 provides stable support and fixation for the cylinder body 8. During the working process of the injection mold, the cylinder body 8 needs to generate a large thrust or pulling force to drive the movement of some components of the mold. Without a firm support structure, the cylinder body 8 may shake or displace during work, affecting its normal operation or even damaging the cylinder body 8, thus ensuring the stable position of the cylinder body 8 and enabling it to play a reliable role.

[0032] The above-described embodiments only represent several implementation manners of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications 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 patent of the present utility model shall be subject to the appended claims.

Claims

1. A novel ejector plate mechanism in a slide position, comprising a front mold fixing plate (1) and a rear mold fixing plate (2), characterized in that: Two sliding seats (3) are arranged on the upper surface of the rear mold fixing plate (2), and a pin plate mechanism body (4) is arranged inside the two sliding seats (3). A sliding insert (5) is arranged on the left side of the two sliding seats (3). A sliding pressure plate (6) is arranged on the upper surface of the rear mold fixing plate (2) and located on the front surface and the rear surface of the two sliding seats (3). A plurality of sliding pressure plates (6) and a spring pressure plate (7) are arranged on the side away from the two sliding seats (3). A cylinder body (8) is arranged on the right side of the two sliding seats (3). The left ends of the output shafts of the two cylinder bodies (8) are fixedly connected to a cylinder connecting rod (9), and the left ends of the two cylinder connecting rods (9) are fixedly connected to the two sliding seats (3) respectively.

2. According to the novel slide-in ejector plate mechanism of claim 1, it is characterized by: The outer side wall of the front mold fixing plate (1) is provided with two sliding wear-resistant plates (10).

3. According to the novel slide-in ejector plate mechanism of claim 1, it is characterized by: A cylinder seat (11) is fixedly connected to the right side of the rear mold fixing plate (2) and below the two cylinder bodies (8).

4. According to the novel slide-in ejector plate mechanism of claim 1, it is characterized by: The ejector plate mechanism body (4) comprises an ejector plate body (401), the left sides of the two ejector plate bodies (401) are fixedly connected with an inclined ejector seat (402), the left sides of the two inclined ejector seats (402) are provided with an inclined ejector body (403), the left sides of the two ejector plate bodies (401) and located in front and rear of the two inclined ejector seats (402) are fixedly connected with a reset rod (404), the outer side walls of the plurality of reset rods (404) are sleeved with a reset spring (405), the front and rear sides of the two ejector plate bodies (401) are provided with a first latch (406), the outer sides of the plurality of first latches (406) are provided with a second latch (407), and the interiors of the plurality of second latches (407) are provided with a latch spring (408).

5. According to the novel slide-in ejector plate mechanism of claim 4, it is characterized by: Two limit screws (409) are arranged on the left side of the two ejector plate bodies (401) and below the two inclined ejector seats (402).

6. According to the novel slide-in ejector plate mechanism of claim 3, it is characterized by: A connecting plate (12) is fixedly connected to the right side of the cylinder seat (11) and on the opposite side of the two cylinder bodies (8); a sensing switch 1 (13) is provided on the left side of the front surface of the two connecting plates (12); a sensing switch 2 (14) is provided on the right side of the front surface of the two connecting plates (12); and a sensing rod (15) is fixedly connected to the right side of the two sliding seats (3) and on the opposite side of the two cylinder connecting rods (9).