Rubber product demolding mold structure

By driving the oil cylinder to move the moving seat and the ejector structure, combined with the guide moving components and the connecting block, the problem of difficult demoulding of the undercut structure of the rubber product is solved, automatic demoulding is achieved, and stability and efficiency are improved.

CN223339945UActive Publication Date: 2025-09-16JIAXING ZHIFENG AUTOMOBILE TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422098556.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-28
Publication Date
2025-09-16
Estimated Expiration
2034-08-28

AI Technical Summary

Technical Problem

In the prior art, rubber products with an undercut structure are easily adsorbed on the mold, making demoulding difficult, time-consuming, labor-intensive, and easily damaging the product.

Method used

The driving cylinder is used to drive the moving seat and the ejector rod structure. The up and down movement of the ejector block is achieved through the guided moving assembly. The stable connection between the connecting block and the connecting rod ensures the stability of the mold operation and realizes the automatic demoulding of the rubber product.

Benefits of technology

It realizes automatic demoulding of rubber products, reduces manual operations, avoids product damage, and improves demoulding efficiency and stability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223339945U_ABST
    Figure CN223339945U_ABST
Patent Text Reader

Abstract

The utility model relates to a rubber product demolding mold structure. The technical problem that when an existing rubber part is provided with an inverted buckle structure, a product cannot be normally demolded is solved. Comprising a driving oil cylinder, a connecting seat body is arranged at one end of the driving oil cylinder, moving seats are arranged at the two ends of the connecting seat body respectively, and the connecting seat body enables the moving seats to axially move in the length direction through the driving oil cylinder; a guide moving structure capable of driving the ejector rod to vertically move when the moving seat axially moves in the length direction is arranged between the moving seat and the ejector rod, an ejector block is arranged at one end of the ejector rod, fixing blocks are arranged at the two ends of the ejector block respectively, and injection molding grooves used for containing product pieces are formed between the fixing blocks and the ejector block. The injection mold has the advantages that the ejector rod is driven by the moving seat to move up and down through the guide moving structure, so that the ejector block is ejected upwards, the phenomenon that normal demolding cannot be carried out when a product part is provided with an inverted buckle is solved, and meanwhile, the design structure of the connecting seat body and the moving seat ensures the overall operation stability of the mold.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model belongs to the technical field of mold equipment, and particularly relates to a demoulding mold structure for rubber products. Background Art

[0002] Molds are various molds and tools used in industrial production to produce desired products through methods such as injection molding, blow molding, extrusion, die-casting, forging, smelting, and stamping. They primarily shape the object by altering the physical state of the material being molded. Specifically, they transform the blank into a specific shape and size under the action of external forces. In existing technology, when manufacturing rubber parts with undercut structures, the rubber product can cling to the mold, preventing the product from being properly demolded. Manual demolding is not only time-consuming and labor-intensive, but can also damage the rubber part, resulting in product failure. Summary of the Invention

[0003] The purpose of the utility model is to provide a rubber product demoulding mold structure in view of the above problems.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a rubber product demoulding mold structure, comprising a driving oil cylinder, wherein one end of the driving oil cylinder is provided with a connecting seat body, and both ends of the connecting seat body are provided with movable seats, and the connecting seat body can cause the movable seat to move axially along the length direction through the driving oil cylinder, and the movable seat is provided with a push rod vertically on the upper side of the end away from the connecting seat body, and a guide movable structure is provided between the movable seat and the push rod, which can drive the push rod to move vertically when the movable seat moves axially along the length direction, and the push rod is provided with a push block at the end away from the movable seat, and fixed blocks are provided at both ends of the push block, and an injection groove for placing the product is provided between the fixed block and the push block. The driving oil cylinder drives the movable seat, and the movable seat causes the push rod to move upward through the guide movable structure, thereby ejecting the push block upward, which is conducive to removing the product.

[0005] In the aforementioned rubber product demolding mold structure, the connecting base comprises a connecting block and a connecting rod. The connecting block is provided with a drive connecting groove at one end near the drive cylinder. The drive connecting groove is T-shaped. A retaining groove extending axially along the width of the connecting block is provided in the middle of the lower end of the connecting block. A plurality of connecting holes extending through the connecting block and communicating with the retaining groove are provided in the middle of the upper end of the connecting block. The drive connecting groove of the connecting block is used to connect to the drive cylinder.

[0006] In the aforementioned rubber product demolding mold structure, a drive block is connected to the output shaft of the drive cylinder. The drive block's shape matches the interior of the drive connection slot and is radially inserted into the drive connection slot. The drive block on the drive cylinder is engaged in the drive connection slot, and when the drive cylinder is operated, it drives the connection block to move.

[0007] In the aforementioned rubber product demolding mold structure, a first connecting groove is provided in the middle of the upper end of the connecting rod. The first connecting groove and the clamping groove are plugged into each other, and the first connecting groove is provided with a plurality of first fixing holes corresponding to the connecting holes. Second connecting grooves are provided on both sides of the lower end of the connecting rod, and the second connecting grooves are provided with a plurality of second fixing holes extending axially therethrough. A connecting block is connected to the first connecting groove of the connecting rod via the clamping groove. The connecting block is disposed in the middle of the connecting rod, which facilitates operational stability.

[0008] In the aforementioned rubber product demoulding mold structure, the guide movement structure includes a slide groove provided at one end of the movable seat away from the connecting seat body, one end of the slide groove being provided with an inclined portion, the lower end of the ejector rod being disposed within the slide groove, the lower end of the ejector rod being provided with an ejector rod slide portion corresponding to the inclined portion, and a guide movement assembly being provided between the ejector rod and the movable seat. The inclined portion cooperates with the ejector rod slide portion, and when the movable seat is in operation, the ejector rod begins to move following the inclined portion.

[0009] In the aforementioned rubber product demoulding mold structure, the guide movement assembly includes a guide ridge disposed on one side of the slide groove. The guide ridge and the inclined portion are both upwardly inclined. An oblique guide groove is provided on the lower end of the ejector rod, and the guide ridge is disposed within the oblique guide groove. The oblique guide groove and the guide ridge cooperate to guide the ejector rod during movement.

[0010] In the aforementioned rubber product demolding mold structure, the movable seat has a third connecting groove at one end near the connecting seat body. The third connecting groove is interlocked with the second connecting groove, and the third connecting groove is provided with a plurality of third fixing holes corresponding to the second fixing holes. The movable seat is disposed at each end of the connecting rod, ensuring operational stability of the movable seat when the connecting rod moves.

[0011] In the above-mentioned rubber product demoulding mold structure, a top block mounting groove is provided on the inner circumferential side of the lower end of the top block, the upper end of the top rod is axially inserted into the top block mounting groove, a plurality of top block connecting holes are provided on the inner circumferential side of the top block, and the upper end of the top rod is provided on the inner circumferential side of the top block, which axially penetrate the top block mounting groove. A plurality of top block fixing holes are provided on the inner circumferential side of the upper end of the top rod, which correspond to the top block connecting holes. The top block is connected to the top rod, and movement of the top rod drives the top block to move.

[0012] In the above-mentioned demoulding mold structure for rubber products, an injection space is provided between the fixed block and the top block, the product part is arranged in the injection space, and one end of the product part is connected to an auxiliary part.

[0013] In the above-mentioned rubber product demoulding mold structure, the driving cylinder is provided with a cylinder fixing seat on the outer side of one end close to the connecting seat body, and the cylinder fixing seat has a cylinder frame fixedly connected to the driving cylinder, and one end of the cylinder frame is provided with a cylinder fixing rod arranged along the direction of the connecting seat body.

[0014] Compared with the existing technology, the advantages of this utility model are:

[0015] The device uses a guided moving structure to enable the ejector rod to move up and down driven by the moving seat, thereby ejecting the ejector block upward, solving the problem of normal demoulding when the product has an undercut. At the same time, the design structure connecting the seat body and the moving seat ensures the overall operating stability of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] Figure 2 It is a structural diagram of the movable seat in the utility model.

[0018] Figure 3 It is a structural diagram of the connecting block in the utility model.

[0019] Figure 4 It is a structural diagram of the top block in the utility model.

[0020] Figure 5 It is a structural schematic diagram of the push rod in the utility model.

[0021] Figure 6 It is a structural schematic diagram of the connecting rod in the utility model.

[0022] Figure 7 It is a front view of the connecting rod in the utility model.

[0023] Figure 8 It is a structural diagram of the top block and the fixed block in the utility model.

[0024] In the figure: driving cylinder 1, output shaft 11, driving block 12, cylinder fixing seat 13, cylinder frame 14, cylinder fixing rod 15, connecting seat body 2, connecting block 21, connecting rod 22, driving connecting groove 23, card slot 24, connecting hole 25, first connecting groove 26, first fixing hole 27, second connecting groove 28, second fixing hole 29, moving seat 3, third connecting groove 31, third fixing hole 32, ejector rod 4, guide moving structure 5, sliding groove 51, inclined portion 52, ejector rod sliding portion 53, ejector block 6, ejector block mounting groove 61, ejector block connecting hole 62, ejector block fixing hole 63, fixed block 7, injection molding groove 71, injection molding space 72, guide moving component 8, guide ridge 81, oblique guide groove 82, product part 9, auxiliary part 91. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0026] like Figure 1-8 As shown, a demoulding mold structure for a rubber product includes a driving cylinder 1, a connecting seat 2 is provided at one end of the driving cylinder 1, and a movable seat 3 is provided at both ends of the connecting seat 2. The connecting seat 2 can make the movable seat 3 move axially along the length direction through the driving cylinder 1, and a push rod 4 is vertically provided on the upper side of the end of the movable seat 3 away from the connecting seat 2. A guide moving structure 5 is provided between the movable seat 3 and the push rod 4, which can drive the push rod 4 to move vertically when the movable seat 3 moves axially along the length direction. The push rod 4 is provided at the end away from the movable seat 3, and fixed blocks 7 are provided at both ends of the push block 6. An injection groove 71 for placing a product part 9 is provided between the fixed block 7 and the push block 6. The driving cylinder 1 drives the movable seat 3, and the movable seat 3 causes the push rod 4 to move upward through the guiding moving structure 5, thereby ejecting the push rod 6 upward, which is conducive to removing the product part 9.

[0027] Combine Figure 1 、 Figure 6 and Figure 7 As shown, the connecting base 2 comprises a connecting block 21 and a connecting rod 22. A drive connecting groove 23 is provided at one end of the connecting block 21, which is close to the driving cylinder 1. The drive connecting groove 23 is T-shaped. A retaining groove 24 is provided in the middle of the lower end of the connecting block 21, extending axially along the width of the connecting block 21. A plurality of connecting holes 25 are provided in the middle of the upper end of the connecting block 21, penetrating the connecting block 21 and communicating with the retaining groove 24. The drive connecting groove 23 of the connecting block 21 is used to connect to the driving cylinder 1.

[0028] The output shaft 11 of the driving cylinder 1 is connected to a driving block 12. The outer shape of the driving block 12 matches the interior of the driving connection slot 23, and the driving block 12 is radially inserted into the driving connection slot 23. The driving block 12 on the driving cylinder 1 is snapped into the driving connection slot 23, and when the driving cylinder 1 is in operation, it drives the connection block 21 to move.

[0029] Specifically, a first connecting groove 26 is provided in the middle of the upper end of the connecting rod 22. The first connecting groove 26 and the retaining groove 24 are plugged into each other. A plurality of first fixing holes 27 corresponding to the connecting holes 25 are provided in the first connecting groove 26. A second connecting groove 28 is provided on either side of the lower end of the connecting rod 22, and a plurality of second fixing holes 29 extending axially therethrough are provided in the second connecting groove 28. The connecting block 21 is connected to the first connecting groove 26 of the connecting rod 22 via the retaining groove 24. The connection block 21 is located in the middle of the connecting rod 22, which facilitates operational stability.

[0030] like Figure 2As shown, the guide movement structure 5 includes a slide groove 51 provided at the end of the movable seat 3 away from the connecting seat body 2. One end of the slide groove 51 is provided with an inclined portion 52. The lower end of the push rod 4 is disposed in the slide groove 51. The lower end of the push rod 4 is provided with a push rod slide portion 53 corresponding to the inclined portion 52. A guide movement assembly 8 is provided between the push rod 4 and the movable seat 3. The inclined portion 52 cooperates with the push rod slide portion 53. When the movable seat 3 is in operation, the push rod 4 begins to move following the inclined portion 52.

[0031] like Figure 5 As shown, the guide movement assembly 8 includes a guide ridge 81 provided on one side of the sliding groove 51. The guide ridge 81 and the inclined portion 52 are both upwardly inclined. An oblique guide groove 82 is provided on one side of the lower end of the push rod 4, and the guide ridge 81 is disposed in the oblique guide groove 82. The oblique guide groove 82 cooperates with the guide ridge 81 to guide the push rod 4 when it moves.

[0032] Combine Figure 2 、 Figure 6 and Figure 7 As shown, the movable base 3 is provided with a third connecting groove 31 at one end near the connecting base body 2. The third connecting groove 31 is plugged into the second connecting groove 28. The third connecting groove 31 is provided with a plurality of third fixing holes 32 corresponding to the second fixing holes 29. The movable base 3 is respectively provided at both ends of the connecting rod 22, ensuring the operational stability of the movable base 3 when the connecting rod 22 moves.

[0033] Combine Figure 4 and Figure 5 As shown, a top block mounting groove 61 is provided on the inner circumferential side of the lower end of the top block 6, and the upper end of the top rod 4 is axially inserted into the top block mounting groove 61. A plurality of top block connecting holes 62 are provided on the inner circumferential side of the top block 6, which axially penetrate the top block mounting groove 61. A plurality of top block fixing holes 63 are provided on the inner circumferential side of the upper end of the top rod 4, which correspond to the top block connecting holes 62. The top block 6 is connected to the top rod 4, and when the top rod 4 moves, the top block 6 is driven to move.

[0034] Combine Figure 1 and Figure 8 As shown, an injection molding space 72 is defined between the fixed block 7 and the top block 6 , a product part 9 is disposed in the injection molding space 72 , and an auxiliary part 91 is connected to one end of the product part 9 .

[0035] Among them, a cylinder fixing seat 13 is provided on the outer side of one end of the driving cylinder 1 close to the connecting seat body 2. The cylinder fixing seat 13 has a cylinder frame 14 fixedly connected to the driving cylinder 1. One end of the cylinder frame 14 is provided with a cylinder fixing rod 15 arranged along the direction of the connecting seat body 2.

[0036] The principle of this embodiment is:

[0037] When the mold is opened, the driving cylinder 1 contracts, and the output shaft 11 of the driving cylinder 1 is connected to the connecting block 21 through the driving block 12, the connecting block 21 is connected to the connecting rod 22, and the connecting rod 22 is connected to the moving seat 3, then the moving seat 3 starts to move, and at the same time, the moving seat 3 drives the ejector rod 4 to push up through the guide moving structure 5, and the ejector rod 4 pushes the ejector block 6 to eject the product 9, and then the product is manually removed; when the mold is closed, the driving cylinder 1 extends, drives the moving seat 3 to move through the connecting seat body 2, and drives the ejector rod 4 to move down, and then the ejector block 6 is reset accordingly.

[0038] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0039] Although this article uses more terms such as driving cylinder 1, output shaft 11, driving block 12, cylinder fixing seat 13, cylinder frame 14, cylinder fixing rod 15, connecting seat body 2, connecting block 21, connecting rod 22, driving connecting groove 23, card slot 24, connecting hole 25, first connecting groove 26, first fixing hole 27, second connecting groove 28, second fixing hole 29, moving seat 3, third connecting groove 31, third fixing hole 32, push rod 4, guide moving structure 5, sliding groove 51, inclined portion 52, push rod sliding portion 53, push block 6, push block mounting groove 61, push block connecting hole 62, push block fixing hole 63, fixed block 7, injection molding groove 71, injection molding space 72, guide moving component 8, guide ridge 81, oblique guide groove 82, product part 9, auxiliary part 91, etc., the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A rubber product demoulding mold structure, comprising a driving cylinder (1), characterized in that: The driving oil cylinder (1) is provided with a connecting seat body (2) at one end, and a moving seat (3) is provided at both ends of the connecting seat body (2). The connecting seat body (2) can make the moving seat (3) move axially along the length direction by driving the oil cylinder (1). The moving seat (3) is vertically provided with a push rod (4) on the upper side of one end away from the connecting seat body (2). A guiding moving structure (5) is provided between the moving seat (3) and the push rod (4) and can drive the push rod (4) to move vertically when the moving seat (3) moves axially along the length direction. The push rod (4) is provided with a push block (6) at one end away from the moving seat (3). Fixed blocks (7) are provided at both ends of the push block (6). An injection groove (71) for placing a product part (9) is provided between the fixed block (7) and the push block (6).

2. A rubber product demoulding mold structure according to claim 1, characterized in that: The connecting seat body (2) comprises a connecting block (21) and a connecting rod (22); a driving connecting groove (23) is provided at one end of the connecting block (21) close to the driving oil cylinder (1); the driving connecting groove (23) is in a T-shaped structure; a clamping groove (24) is provided in the middle of the lower end of the connecting block (21) and axially penetrates the connecting block (21) in the width direction; and a plurality of connecting holes (25) are provided in the middle of the upper end of the connecting block (21) and are communicated with the clamping groove (24).

3. A rubber product demoulding mold structure according to claim 2, characterized in that: The output shaft (11) of the driving oil cylinder (1) is connected to a driving block (12), the outer shape of the driving block (12) matches the interior of the driving connection groove (23), and the driving block (12) is radially inserted into the driving connection groove (23).

4. A rubber product demoulding mold structure according to claim 2, characterized in that: A first connecting groove (26) is provided in the middle of the upper end of the connecting rod (22), and the first connecting groove (26) and the clamping groove (24) are plugged into each other. A plurality of first fixing holes (27) corresponding to the connecting holes (25) are provided in the first connecting groove (26). Second connecting grooves (28) are provided on both sides of the lower end of the connecting rod (22), and a plurality of second fixing holes (29) axially penetrating therethrough are provided in the second connecting groove (28).

5. A rubber product demoulding mold structure according to claim 1 or 2 or 3 or 4, characterized in that: The guide movable structure (5) includes a sliding groove (51) arranged at one end of the movable seat (3) away from the connecting seat body (2), one end of the sliding groove (51) is provided with an inclined portion (52), the lower end of the push rod (4) is arranged in the sliding groove (51), the lower end of the push rod (4) is provided with a push rod sliding portion (53) corresponding to the inclined portion (52), and a guide movable component (8) is provided between the push rod (4) and the movable seat (3).

6. A rubber product demoulding mold structure according to claim 5, characterized in that: The guide moving assembly (8) includes a guide ridge (81) arranged on one side of the sliding groove (51), and the guide ridge (81) and the inclined portion (52) are both upwardly inclined structures corresponding to each other. An oblique guide groove (82) is provided on one side of the lower end of the push rod (4), and the guide ridge (81) is arranged in the oblique guide groove (82).

7. The demoulding mold structure for rubber products according to claim 4, characterized in that: The movable seat (3) is provided with a third connecting groove (31) at one end close to the connecting seat body (2), the third connecting groove (31) and the second connecting groove (28) are plugged into each other, and a plurality of third fixing holes (32) corresponding to the second fixing holes (29) are provided in the third connecting groove (31).

8. The rubber product demoulding mold structure according to claim 1, characterized in that: A top block mounting groove (61) is provided on the inner circumferential side of the lower end of the top block (6); the upper end of the top rod (4) is axially inserted into the top block mounting groove (61); a plurality of top block connecting holes (62) axially penetrating the top block mounting groove (61) are provided on the inner circumferential side of the top block (6); and a plurality of top block fixing holes (63) corresponding to the top block connecting holes (62) are provided on the inner circumferential side of the upper end of the top rod (4).

9. The rubber product demoulding mold structure according to claim 1, characterized in that: An injection molding space (72) is provided between the fixed block (7) and the top block (6), the product part (9) is arranged in the injection molding space (72), and one end of the product part (9) is connected to an auxiliary part (91).

10. The rubber product demoulding mold structure according to claim 1, characterized in that: The driving oil cylinder (1) is provided with an oil cylinder fixing seat (13) on the outer side of one end close to the connecting seat body (2), and the oil cylinder fixing seat (13) has an oil cylinder frame (14) fixedly connected to the driving oil cylinder (1), and one end of the oil cylinder frame (14) is provided with an oil cylinder fixing rod (15) arranged along the direction of the connecting seat body (2).