Large-stroke ejection mechanism

By combining a single-stage push rod and a double-stage push rod, along with cylinder drive, the problem of product jamming in the long-stroke ejection mechanism is solved, achieving a stable and reliable ejection effect, suitable for forming cabinets of various specifications.

CN223750166UActive Publication Date: 2026-01-02QINDIAN (XIAMEN) MOLD TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520050539.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-01-02
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

Existing spring-driven automatic ejection structures are prone to jamming during large-stroke movements, making it impossible to reliably eject the molded product from the mold.

Method used

It adopts a structure combining a single push rod and a two-stage push rod, combined with cylinder drive, to provide stable ejection force, and forms an injection space through connecting seat and molding support block to ensure that the push block can move accurately.

Benefits of technology

It achieves stability and reliability in long-stroke ejection, prevents product jamming, is suitable for forming cabinets of various specifications, and improves the applicability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The large-stroke ejection mechanism comprises a supporting base, a supporting bottom plate and a pushing base arranged on the upper portion of the interior of the supporting base, a section of push rod is arranged at the upper end of the pushing base, the section of push rod is connected with the supporting bottom plate in an inserted mode, the section of push rod penetrates to the position above the supporting bottom plate, and the supporting bottom plate is arranged on the pushing base. A first-section push rod is arranged on the supporting bottom plate, a second-section push rod is arranged above the first-section push rod, a push block is installed at the upper end of the second-section push rod, a cabinet body is arranged above the push block, the push block is located in the cabinet body, a plurality of air cylinders are arranged on the two opposite sides of the supporting bottom plate, and the air cylinders are used for movably supporting the pushing base, the first-section push rod and the push block; on the basis of combined use of the first-section push rod and the second-section push rod, ejection moving force can be provided for a cabinet body from the interior of the supporting base, the stability of thrust transmission is guaranteed, meanwhile, the cabinet body can be accurately moved out of the interior of a forming mold, and the situation that a formed product and the mold are clamped is prevented.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a forming die technical field especially relates to a big stroke ejection mechanism. BACKGROUND

[0002] Forming die, also called mould, is made according to the shape and structure of the real object in proportion, which is used to make materials into a certain shape by pressing or pouring.

[0003] The cabinet product is prepared by the mold forming, and the main body is integrally formed, which prevents the complicated assembly process. However, due to the large size of the cabinet, the existing spring automatic ejection structure is used to move the product after forming, which is easy to cause the ejection force to be too small, resulting in the product being stuck, which affects the reliability of the mold during the large stroke movement.

[0004] Therefore, we provide a big stroke ejection mechanism. INVENTION CONTENTS

[0005] The utility model aims at the above -mentioned technical problem, provides a big stroke ejection mechanism, reaches the effect that the device has big stroke ejection.

[0006] Therefore, the utility model provides a big stroke ejection mechanism, which comprises a supporting base, a supporting bottom plate, a pushing base arranged above the inside of the supporting base, a first push rod arranged at the upper end of the pushing base, the first push rod being inserted into the supporting bottom plate and penetrating through the upper side of the supporting bottom plate, a second push rod arranged above the first push rod, a pushing block mounted at the upper end of the second push rod, a cabinet arranged above the pushing block, the pushing block being arranged inside the cabinet, and a plurality of air cylinders arranged at the opposite sides of the supporting bottom plate and used for moving and supporting the pushing base, the first push rod and the pushing block.

[0007] Preferably, the upper end of the first push rod and the upper end of the second push rod are both provided with a connecting seat, the connecting seat is arranged between the first push rod and the second push rod, and the second push rod is arranged between the pushing block and the connecting seat below.

[0008] Preferably, the second push rod is provided with a fixing block, a plurality of forming support blocks are arranged outside the fixing block, an injection molding space is formed between the inner wall of the forming support blocks and the outer side surface of the fixing block, and the injection molding space is used for injection molding of the cabinet.

[0009] Preferably, the forming support blocks are mounted at the upper end of the supporting bottom plate, the fixing block is arranged between the forming support blocks, the second push rod penetrates through the upper side of the fixing block, and the fixing block is arranged between the pushing block and the connecting seat below.

[0010] Preferably, the pushing base lower end is provided with a moving plate, the moving plate is located in the middle of the supporting base, and the supporting base is provided with a plurality of clamping seats on opposite sides, and the clamping seats are used for the moving connection and support of the moving plate.

[0011] Preferably, a clamping head is clamped in the clamping seat, and the clamping head is installed at the output end of the air cylinder.

[0012] Preferably, two air cylinders located on the same side are simultaneously connected with a fixing plate, the fixing plate is installed on one side of the supporting base plate, and the output end of the air cylinder penetrates the fixing plate.

[0013] Compared with the prior art, the large-stroke ejection mechanism has the following beneficial effects:

[0014] 1. The utility model is based on the combined use of a one-section push rod and a two-section push rod, can provide ejection moving force for the cabinet from the inside of the supporting base, ensure the stability of the push force transmission, at the same time, can accurately move the cabinet out of the forming mold, prevent incomplete demolding movement due to large size, and cause the situation that the formed product and the mold are stuck.

[0015] 2. The utility model provides stable power source for the ejection movement of the one-section push rod and the two-section push rod under the driving support of the two side air cylinders, ensures the reliability of the power when the device is ejected and moved, effectively prevents the situation that the moving force is weak due to large product size and the product cannot be moved out in time.

[0016] 3. The utility model is combined with a plurality of two-section push rods and one-section push rods under the connecting support of the connecting seat, meets the use support of more specifications, and improves the application range of the device.

[0017] The parts not involved in the device are the same as or can be realized by the prior art, the utility model has the advantages of simple structure and convenient operation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an explosion view of the large-stroke ejection mechanism proposed in the utility model;

[0019] Figure 2 It is a lower half three-dimensional structure schematic view of the large-stroke ejection mechanism proposed in the utility model;

[0020] Figure 3 It is a pushing mode structure schematic view of the large-stroke ejection mechanism proposed in the utility model;

[0021] Figure 4 It is an overall front view structure schematic view of the large-stroke ejection mechanism proposed in the utility model.

[0022] In the diagram: 1. Support base; 2. Movable plate; 3. Card slot; 4. Card head; 5. Cylinder; 501. Fixed plate; 6. Push base; 7. First stage push rod; 701. Second stage push rod; 702. Connecting seat; 8. Push block; 9. Cabinet; 10. Fixed block; 11. Forming support block; 12. Support base plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Example 1: A long-stroke ejection mechanism, such as Figure 1 - Figure 4 As shown, the support includes a support base 1, a support base plate 12, and a push base 6 located inside and above the support base 1. A push rod 7 is provided at the upper end of the push base 6. The push rod 7 is inserted into the support base plate 12 and extends through to the top of the support base plate 12. A second push rod 701 is provided above the first push rod 7. A push block 8 is installed at the upper end of the second push rod 701. A cabinet 9 is provided above the push block 8. The push block 8 is located inside the cabinet 9. Several cylinders 5 are provided on opposite sides of the support base plate 12. The cylinders 5 are used to move the support of the base 6, the first push rod 7, and the push block 8.

[0026] Firstly, the combined use of the first-stage push rod 7 and the second-stage push rod 701 provides an ejection force to the cabinet 9 from inside the support base 1, ensuring stable thrust transmission. Simultaneously, it accurately removes the cabinet 9 from the molding mold, preventing incomplete demolding due to its large size, which could cause the molded product to jam against the mold. Furthermore, the drive of the cylinders 5 on both sides provides a stable power source for the ejection movement of the first-stage push rod 7 and the second-stage push rod 701, ensuring reliable power during ejection and effectively preventing situations where the large product size results in weak movement force, preventing timely product removal. This ensures the device possesses accurate and reliable large-stroke demolding movement.

[0027] like Figure 1 - Figure 4As shown, the upper end of the first push rod 7 and the second push rod 701 is provided with a connecting seat 702, and the lower connecting seat 702 is located between the first push rod 7 and the second push rod 701, and the upper second push rod 701 is located between the push block 8 and the lower connecting seat 702.

[0028] With the support of the lower connecting seat 702, the combination of the first push rod 7 and the second push rod 701 is stable, and with the support of the upper connecting seat 702, the installation and connection of the push block 8 and the second push rod 701 are stable, thereby ensuring the stable strength of the combination of the first push rod 7 and the second push rod 701 for driving the push block 8, so that it can meet the moving distance of large stroke, improve the accuracy and efficiency of the device, and through the combination of multiple second push rods 701 and first push rods 7, it can meet the use of more specifications, and improve the application range of the device.

[0029] As shown in Figure 1 - Figure 4 As shown, the second push rod 701 is inserted with a fixed block 10, and the outer side of the fixed block 10 is provided with a plurality of shaped support blocks 11, and the inner wall of the plurality of shaped support blocks 11 and the outer side of the fixed block 10 form an injection molding space, which is used for injection molding of the cabinet body 9.

[0030] The shaped support block 11 is installed on the upper end of the support bottom plate 12, the fixed block 10 is located between the plurality of shaped support blocks 11, and the second push rod 701 penetrates to the upper side of the fixed block 10, and the fixed block 10 is located between the push block 8 and the lower connecting seat 702.

[0031] Through the combination support of the shaped support block 11, the support bottom plate 12 and the cabinet body 9, an injection molding support space is formed to ensure the stability of the cabinet body 9, and to provide guiding support for the pushing part to improve the reliability of the device as a whole.

[0032] Embodiment two: a large-stroke ejection mechanism, as shown in Figure 1 - Figure 4 As shown, the lower end of the pushing base 6 is provided with a moving plate 2, and the moving plate 2 is located in the middle of the support base 1, and the support base 1 is provided with a plurality of clamping seats 3 on the opposite sides, and the clamping seats 3 are used for the moving connection and support of the moving plate 2.

[0033] The clamping head 4 is connected and clamped in the clamping seat 3, and the clamping head 4 is installed on the output end of the air cylinder 5.

[0034] The two air cylinders 5 on the same side are connected with a fixed plate 501, and the fixed plate 501 is installed on one side of the support bottom plate 12, and the output end of the air cylinder 5 penetrates the fixed plate 501.

[0035] Based on the positioning plug-in of the card seat 3 and the card head 4, the driving of the air cylinder 5 is transmitted to the moving plate 2, and under the support of the moving plate 2, the plurality of pushing bases 6 are driven to move simultaneously, the effect of supporting the plurality of pushing bases 6 to move simultaneously is achieved, and under the power support of the plurality of air cylinders 5 from both sides, the accurate and reliable stability of the device connection movement is ensured, and stable power support is provided for the ejection movement of the device.

[0036] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A large-stroke ejection mechanism comprising a support base (1), a support bottom plate (12), and a pushing base (6) arranged inside and above the support base (1), characterized in that, The upper end of the pushing base (6) is provided with a section of push rod (7), the section of push rod (7) is inserted with the supporting bottom plate (12), and the section of push rod (7) penetrates to above the supporting bottom plate (12), the upper end of the section of push rod (7) is provided with a section of second push rod (701), the upper end of the section of second push rod (701) is provided with a push block (8), the upper end of the push block (8) is provided with a cabinet (9), the push block (8) is located in the cabinet (9), and the opposite sides of the supporting bottom plate (12) are provided with a plurality of air cylinders (5), and the air cylinders (5) are used for the movement support of the pushing base (6), the section of push rod (7) and the push block (8).

2. A high-stroke ejection mechanism according to claim 1, characterized in that The upper end of the section of push rod (7) and the section of second push rod (701) is provided with a connecting seat (702), the connecting seat (702) is located between the section of push rod (7) and the section of second push rod (701), and the section of second push rod (701) is located between the push block (8) and the connecting seat (702) below.

3. A high-stroke ejection mechanism according to claim 2, characterized in that The section of second push rod (701) is inserted with a fixed block (10), a plurality of shaped supporting blocks (11) are arranged on the outer side of the fixed block (10), an injection molding space is formed between the inner wall of the plurality of shaped supporting blocks (11) and the outer side of the fixed block (10), and the injection molding space is used for the injection molding of the cabinet (9).

4. A high-stroke ejection mechanism according to claim 3, characterized in that The shaped supporting blocks (11) are installed on the upper end of the supporting bottom plate (12), the fixed block (10) is located between the plurality of shaped supporting blocks (11), the section of second push rod (701) penetrates to above the fixed block (10), and the fixed block (10) is located between the push block (8) and the connecting seat (702) below.

5. A high-stroke ejection mechanism according to claim 1, characterized in that The lower end of the pushing base (6) is provided with a moving plate (2), the moving plate (2) is located in the middle of the supporting base (1), and the opposite sides of the supporting base (1) are provided with a plurality of clamping seats (3), and the clamping seats (3) are used for the movement connection support of the moving plate (2).

6. A high-stroke ejection mechanism according to claim 5, characterized in that The clamping seat (3) is internally clamped and connected with a clamping head (4), and the clamping head (4) is installed at the output end of the air cylinder (5).

7. A high-stroke ejection mechanism according to claim 1, characterized in that The two air cylinders (5) located on the same side are simultaneously connected with a fixed plate (501), the fixed plate (501) is installed on one side of the supporting bottom plate (12), and the output end of the air cylinder (5) penetrates the fixed plate (501).