Linear-arc composite ejection demolding structure

By designing an automatic core-pulling mechanism and a high-efficiency material pushing mechanism for a composite ejection and demolding structure with a straight line and an arc, the problem of inconvenience in using existing demolding structures has been solved, demolding efficiency has been improved, and costs have been reduced.

CN224489747UActive Publication Date: 2026-07-14XIAMEN MOBANG IND TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521784065.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-21
Publication Date
2026-07-14
Estimated Expiration
2035-08-21

AI Technical Summary

Technical Problem

Existing demolding structures are inconvenient to operate during automatic core pulling and material pushing, resulting in low efficiency and high manufacturing costs, making it difficult to meet market demands.

Method used

A composite ejection and demolding structure with a straight line and an arc shape was designed, which includes an automatic core pulling mechanism and a high-efficiency material pushing mechanism. Automatic core pulling is achieved by a motor-driven rotating shaft that drives a transmission gear system, and high-efficiency material pushing is achieved by the linkage of a straight ejector rod and a rotating slider.

Benefits of technology

It achieves automatic core pulling and efficient material pushing of the demolding structure, improves work efficiency, reduces manufacturing costs, and meets market demand.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to product demoulding technical field, concretely to a linear plus arc composite ejection demoulding structure, including structure frame board, the surface of structure frame board top position department installs motor body, one side of structure frame board is provided with motor seat, the inside of motor seat is provided with push block, the inner wall of push block and motor seat mutually sliding fit, one side of structure frame board all is provided with rotating lever, one side of rotating lever is provided with tooth core lengthening lever, the surface of structure frame board and rotating lever is provided with automatic core pulling mechanism, the inside of motor seat is provided with high -efficient push material mechanism. The utility model not only makes the demoulding structure use can automatically draw out the product, makes the demoulding structure more efficient when using, and makes the demoulding structure use can push out the tooth core body from the surface of motor seat when drawing out, makes the demoulding structure when using the work efficiency higher.
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Description

Technical Field

[0001] This utility model relates to the field of product demolding technology, specifically a linear and arc-shaped composite ejection demolding structure. Background Technology

[0002] For plastic products formed by plastic molds, it is common to see plastic products with curved structures, such as pipe products with curved elbows. Because the curved structure cannot be directly demolded during the mold opening process, and when the curved feature and the product threads are integrated, the product becomes complicated to manufacture and inconvenient to demold. In order to meet the needs of the market, a composite ejection and demolding structure of straight line and curved shape is needed.

[0003] Existing demolding structures have long development cycles and high manufacturing costs, making them inconvenient for later maintenance. Furthermore, existing demolding structures are not convenient for automatic core pulling during use, which makes it difficult to automatically extract the product and thus makes them inefficient. In addition, existing demolding structures are inconvenient and inefficient in pushing materials, which prevents the extracted tooth core from the surface of the motor base, greatly reducing the working efficiency of the demolding structure. Utility Model Content

[0004] The purpose of this invention is to provide a linear and arc-shaped composite ejection and demolding structure to solve the problems mentioned in the background art, such as the inconvenience of automatic core pulling and the inconvenience of operation during material pushing, which are not efficient enough.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a linear and arc-shaped composite ejection and demolding structure, comprising a structural frame plate, a motor body mounted on the surface of the top position of the structural frame plate, a rotating shaft mounted on the output end of the motor body, one end of the rotating shaft penetrating the structural frame plate and extending to the bottom of the structural frame plate, a motor seat provided on one side of the structural frame plate, a push block provided inside the motor seat, the push block slidingly engaging with the inner wall of the motor seat, a rotating rod provided on one side of each side of the structural frame plate, a toothed core extension rod provided on one side of each rotating rod, an automatic core-pulling mechanism provided on the surfaces of the structural frame plate and the rotating rod, and a high-efficiency material pushing mechanism provided inside the motor seat.

[0006] Preferably, a support seat is installed on the inner wall of the motor base, the support seat slides in contact with the surface of the core body, the motor base is provided with product threads, the surface of the product threads is provided with the core body, the inner wall of the core body is threaded in contact with the surface of the product threads, and a pressure block is provided on the surface of the rotating rod.

[0007] Preferably, the automatic core-pulling mechanism comprises a transmission gear, a chain, a fixed gear, a driving gear, a driven gear, a rotating gear, and bearings. The transmission gear is located below the structural frame plate. The surface of the transmission gear at its center is fixed to the surface of the rotating shaft. The surface of the toothed core extension rod is fitted with a fixed gear. The surfaces of the fixed gear and the transmission gear are fitted with a chain. The surface of the toothed core extension rod is fitted with a driving gear. The surface of the rotating rod is fitted with a driven gear. The driven gear and the driving gear mesh with each other. The rotating rod rotates in conjunction with the inner wall of the motor base.

[0008] Preferably, the surface of the rotating rod is fitted with a bearing, and the interior of the motor base is provided with a rotating gear. The rotating gear rotates and engages with the inner wall of the motor base. The rotating gear meshes with the driven gear. The surface at the top of the rotating gear is fixed to the surface at the bottom of the product thread.

[0009] Preferably, the high-efficiency pushing mechanism consists of a track groove, a guide shaft, a straight push rod, a rotating pin, a groove body, and a rotatable slider. Track grooves are formed on both sides of the motor base, and guide shafts are installed on both sides of the push block. The guide shafts are engaged with the inner wall of the track groove. A groove body is formed on the bottom surface of the push block, and a straight push rod is provided on the bottom surface of the motor base. The top end of the straight push rod passes through the motor base and extends into the interior of the groove body.

[0010] Preferably, each push block has a rotatable slider inside, which rotates and engages with the surface at the top of the straight push rod. The surface of the straight push rod is equipped with a rotating pin, which rotates and engages with the inner wall of the rotatable slider. The surface of the rotatable slider is fixed to the inner wall of the push block.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the straight line plus arc composite ejection demolding structure not only enables the demolding structure to automatically extract the product during use, making the demolding structure more efficient during use, but also enables the demolding structure to push the extracted tooth core body from the surface of the motor seat during use, making the demolding structure more efficient during use.

[0012] 1. By setting up an automatic core-pulling mechanism, the motor body drives the rotating shaft to rotate on the inner wall of the structural frame plate, thereby driving the transmission gear to rotate. Under the combined action of the transmission gear, chain, and fixed gear, the tooth core extension rod is driven to rotate. When the tooth core extension rod rotates, it drives the drive gear to rotate. Under the meshing action of the drive gear and the driven gear, the driven gear is driven to rotate, thereby driving the rotating rod to rotate. When the driven gear rotates, under the meshing action of the driven gear and the rotating gear, the product thread rotates. Under the clamping force of the product thread and the transmission properties of the thread pitch, the product thread is driven to retract and separate from the surface of the tooth core body under the thread engagement between the product thread surface and the tooth core body, thus performing core-pulling processing on the tooth core body. This realizes the automatic core-pulling function of the demolding structure, so that the demolding structure can automatically pull out the product during use, making the demolding structure more efficient in use.

[0013] 2. By setting up a high-efficiency pushing mechanism, the straight push rod drives the push block to move upward inside the motor base. The guide shaft on the surface of the push block is locked inside the track groove. Therefore, when the tooth core body moves upward to the arc-shaped turning point of the track groove, the push block stops moving upward. The straight push rod drives the rotating pin and the rotatable slider to continue linear motion. Under the linkage of the straight push rod, the rotating pin and the rotatable slider, the push block makes arc-shaped motion on the inner wall of the track groove, thereby driving the push block to move. Under the action of the push block, the tooth core body is pushed out. Under the action of the support seat, the tooth core body is guided, so that the tooth core body falls off automatically. This realizes the efficient pushing function of the demolding structure, so that the tooth core body can be pushed out from the surface of the motor base when the demolding structure is used, making the demolding structure more efficient in use. Attached Figure Description

[0014] Figure 1 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 3 This is an enlarged side view sectional diagram of the present invention;

[0017] Figure 4 This is a partial three-dimensional cross-sectional enlarged structural schematic diagram of the present invention;

[0018] Figure 5 For the present utility model Figure 4 A magnified structural diagram of point A in the middle.

[0019] In the diagram: 1. Structural frame plate; 101. Motor body; 102. Push block; 103. Core body; 104. Core extension rod; 105. Rotating rod; 106. Motor base; 107. Support base; 108. Product thread; 109. Pressure block; 2. Automatic core pulling mechanism; 21. Transmission gear; 22. Chain; 23. Fixed gear; 24. Driving gear; 25. Driven gear; 26. Rotating gear; 27. Bearing; 3. High-efficiency pushing mechanism; 31. Track groove; 32. Guide shaft; 33. Straight push rod; 34. Rotating pin; 35. Groove; 36. Rotatable slider. Detailed Implementation

[0020] 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.

[0021] The present invention provides a linear plus arc-shaped composite ejection and demolding structure, as follows: Figures 1 to 4 As shown, the structure includes a structural frame plate 1. A motor body 101 is mounted on the top surface of the structural frame plate 1. The motor body 101 can be a YE series model. A rotating shaft is mounted on the output end of the motor body 101, and one end of the rotating shaft passes through the structural frame plate 1 and extends to the bottom of the structural frame plate 1. A motor seat 106 is provided on one side of the structural frame plate 1. A push block 102 is provided inside the motor seat 106. The push block 102 slides against the inner wall of the motor seat 106. A rotating rod 105 is provided on one side, and a toothed core extension rod 104 is provided on one side of the rotating rod 105. A support seat 107 is installed on the inner wall of the motor seat 106. The support seat 107 and the surface of the toothed core body 103 slide in each other. A product thread 108 is provided inside the motor seat 106. The toothed core body 103 is provided on the surface of the product thread 108. The inner wall of the toothed core body 103 is threaded in conjunction with the surface of the product thread 108. A pressure block 109 is provided on the surface of the rotating rod 105.

[0022] Furthermore, such as Figure 1 and Figure 2As shown, an automatic core-pulling mechanism 2 is provided on the surfaces of the structural frame plate 1 and the rotating rod 105. The automatic core-pulling mechanism 2 consists of a transmission gear 21, a chain 22, a fixed gear 23, a driving gear 24, a driven gear 25, a rotating gear 26, and a bearing 27. The transmission gear 21 is located below the structural frame plate 1. The surface of the transmission gear 21 at its center position is fixed to the surface of the rotating shaft. The fixed gear 23 is fitted onto the surface of the toothed core extension rod 104. The chain 22 is fitted onto the surfaces of the fixed gear 23 and the transmission gear 21. The chain 22 is fitted onto the surface of the toothed core extension rod 104. There is a driving gear 24, and a driven gear 25 is fitted on the surface of the rotating rod 105. The driven gear 25 meshes with the driving gear 24. The rotating rod 105 rotates with the inner wall of the motor base 106. A bearing 27 is fitted on the surface of the rotating rod 105. Rotating gears 26 are provided inside the motor base 106. The rotating gears 26 rotate with the inner wall of the motor base 106. The rotating gears 26 mesh with the driven gear 25. The surface at the top of the rotating gear 26 is fixed to the surface at the bottom of the product thread 108.

[0023] During implementation, the motor body 101 drives the rotating shaft to rotate on the inner wall of the structural frame plate 1, thereby driving the transmission gear 21 to rotate. Under the combined action of the transmission gear 21, chain 22 and fixed gear 23, the tooth core extension rod 104 is driven to rotate. When the tooth core extension rod 104 rotates, it drives the drive gear 24 to rotate. Under the meshing action of the drive gear 24 and the driven gear 25, the driven gear 25 is driven to rotate, thereby driving the rotating rod 105 to rotate. When the driven gear 25 rotates, under the meshing action of the driven gear 25 and the rotating gear 26, the product thread 108 is driven to rotate. Under the clamping force of the product thread 108 and the transmission properties of the thread pitch, and under the threaded engagement between the surface of the product thread 108 and the tooth core body 103, the product thread 108 is driven to retract and detach from the surface of the tooth core body 103, thus performing a core-pulling process on the tooth core body 103 to achieve the function of automatic core-pulling of the demolding structure.

[0024] Furthermore, such as Figure 3 , Figure 4 and Figure 5As shown, the motor base 106 is equipped with a high-efficiency pushing mechanism 3. The high-efficiency pushing mechanism 3 consists of a track groove 31, a guide shaft 32, a straight push rod 33, a rotating pin 34, a groove 35, and a rotatable slider 36. Track grooves 31 are provided on both sides of the motor base 106. Guide shafts 32 are installed on both sides of the push block 102. The guide shafts 32 are engaged with the inner walls of the track grooves 31. Grooves 35 are provided on the bottom surface of the push block 102. A straight push rod 33 is provided on the bottom surface of the motor base 106. The top of the straight push rod 33 passes through the motor base 106 and extends into the groove 35. A rotatable slider 36 is provided inside the push block 102. The rotatable slider 36 rotates with the top surface of the straight push rod 33. A rotating pin 34 is installed on the surface of the straight push rod 33. The rotating pin 34 rotates with the inner wall of the rotatable slider 36. The surface of the rotatable slider 36 is fixed to the inner wall of the push block 102.

[0025] During implementation, the straight push rod 33 drives the push block 102 to move upward inside the motor base 106. The guide shaft 32 on the surface of the push block 102 is engaged inside the track groove 31. Therefore, when the tooth core body 103 moves upward to the arc-shaped turning point of the track groove 31, the push block 102 stops moving upward. The straight push rod 33 drives the rotating pin 34 and the rotatable slider 36 to continue linear motion. Under the linkage of the straight push rod 33, the rotating pin 34 and the rotatable slider 36, the push block 102 makes arc-shaped motion on the inner wall of the track groove 31, thereby driving the push block 102 to move. Under the action of the push block 102, the tooth core body 103 is pushed out. Under the action of the support base 107, the tooth core body 103 is guided, so that the tooth core body 103 falls off automatically, thereby realizing the efficient material pushing function of the demolding structure.

[0026] Working principle: In use, when the motor body 101 starts working, the motor body 101 drives the rotating shaft to rotate on the inner wall of the structural frame plate 1, thereby driving the transmission gear 21 to rotate. Under the combined action of the transmission gear 21, chain 22 and fixed gear 23, the tooth core extension rod 104 is driven to rotate. When the tooth core extension rod 104 rotates, it drives the driving gear 24 to rotate. Under the meshing action of the driving gear 24 and the driven gear 25, the driven gear 25 is driven to rotate, thereby driving the rotating rod 105 to rotate. When the driven gear 24 rotates, the driven gear 25 rotates. When gear 25 rotates, the driven gear 25 and the rotating gear 26 mesh to drive the product thread 108 to rotate. Under the clamping force of the product thread 108 and the transmission properties of the thread pitch, the product thread 108 is driven to retract and detach from the surface of the core body 103 by the threaded engagement between the surface of the product thread 108 and the core body 103, thereby performing core pulling processing on the core body 103 to realize the automatic core pulling function of the demolding structure. This allows the demolding structure to automatically extract the product during use, making the demolding structure more efficient in use.

[0027] Subsequently, the straight push rod 33 drives the push block 102 to move upward inside the motor base 106. The guide shaft 32 on the surface of the push block 102 is engaged inside the track groove 31. Therefore, when the tooth core body 103 moves upward to the arc-shaped turning point of the track groove 31, the push block 102 stops moving upward. The straight push rod 33 drives the rotating pin 34 and the rotatable slider 36 to continue linear motion. Under the linkage of the straight push rod 33, the rotating pin 34 and the rotatable slider 36, the push block 102 makes arc-shaped motion on the inner wall of the track groove 31, thereby driving the push block 102 to move. Under the action of the push block 102, the tooth core body 103 is pushed out. Under the action of the support seat 107, the tooth core body 103 is guided, so that the tooth core body 103 falls off automatically, so as to realize the efficient material pushing function of the demolding structure. Thus, when the demolding structure is used, the extracted tooth core body 103 can be pushed out from the surface of the motor base 106, making the demolding structure more efficient in use, and finally completing the use of the demolding structure.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention.

Claims

1. A composite ejection and demolding structure with straight and arc shapes, comprising a structural frame plate (1), characterized in that: A motor body (101) is mounted on the surface of the top position of the structural frame plate (1). A rotating shaft is mounted on the output end of the motor body (101), and one end of the rotating shaft passes through the structural frame plate (1) and extends to the bottom of the structural frame plate (1). A motor seat (106) is provided on one side of the structural frame plate (1). A push block (102) is provided inside the motor seat (106). The push block (102) slides and engages with the inner wall of the motor seat (106). A rotating rod (105) is provided on one side of the structural frame plate (1). A tooth core extension rod (104) is provided on one side of the rotating rod (105). An automatic core pulling mechanism (2) is provided on the surface of the structural frame plate (1) and the rotating rod (105). A high-efficiency material pushing mechanism (3) is provided inside the motor seat (106).

2. The linear and arc-shaped composite ejection and demolding structure according to claim 1, characterized in that: The inner wall of the motor base (106) is equipped with a support base (107), the support base (107) and the surface of the core body (103) slide in mutual engagement, the motor base (106) is provided with a product thread (108), the surface of the product thread (108) is provided with a core body (103), the inner wall of the core body (103) is threaded in engagement with the surface of the product thread (108), and the surface of the rotating rod (105) is provided with a pressure block (109).

3. The linear and arc-shaped composite ejection and demolding structure according to claim 1, characterized in that: The automatic core-pulling mechanism (2) is composed of a transmission gear (21), a chain (22), a fixed gear (23), a driving gear (24), a driven gear (25), a rotating gear (26), and a bearing (27). The transmission gear (21) is provided below the structural frame plate (1). The surface of the transmission gear (21) at its center position is fixed to the surface of the rotating shaft. The fixed gear (23) is fitted on the surface of the tooth core extension rod (104). The chain (22) is fitted on the surface of the fixed gear (23) and the transmission gear (21). The driving gear (24) is fitted on the surface of the tooth core extension rod (104). The driven gear (25) is fitted on the surface of the rotating rod (105). The driven gear (25) meshes with the driving gear (24). The rotating rod (105) rotates with the inner wall of the motor base (106).

4. The linear and arc-shaped composite ejection and demolding structure according to claim 1, characterized in that: The rotating rod (105) is fitted with a bearing (27), and the motor seat (106) is provided with a rotating gear (26). The rotating gear (26) rotates and engages with the inner wall of the motor seat (106). The rotating gear (26) meshes with the driven gear (25). The surface at the top of the rotating gear (26) is fixed to the surface at the bottom of the product thread (108).

5. The linear and arc-shaped composite ejection and demolding structure according to claim 1, characterized in that: The high-efficiency pushing mechanism (3) consists of a track groove (31), a guide shaft (32), a straight push rod (33), a rotating pin (34), a groove (35), and a rotatable slider (36). Track grooves (31) are provided on both sides of the motor seat (106). Guide shafts (32) are installed on both sides of the push block (102). The guide shafts (32) and the inner wall of the track groove (31) are engaged with each other. A groove (35) is provided on the bottom surface of the push block (102). A straight push rod (33) is provided on the bottom surface of the motor seat (106). The top end of the straight push rod (33) passes through the motor seat (106) and extends into the interior of the groove (35).

6. The linear and arc-shaped composite ejection and demolding structure according to claim 1, characterized in that: The push block (102) is equipped with a rotatable slider (36) inside. The rotatable slider (36) rotates with the surface at the top of the straight push rod (33). The surface of the straight push rod (33) is equipped with a rotating pin (34). The rotating pin (34) rotates with the inner wall of the rotatable slider (36). The surface of the rotatable slider (36) is fixed to the inner wall of the push block (102).