Rubber compound product demolding power assisting device
By employing a dual-action pneumatic and mechanical demolding method, the air cushion effect is used to reduce friction, and combined with mechanical ejection force, the deformation and damage problems of high-viscosity compounded rubber during the demolding process are solved, achieving efficient and stable demolding results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINGTAI ZHAO XIN XIANGSU PROD CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-04-10
AI Technical Summary
In the existing technology, high-viscosity compounded rubber is prone to sticking to the mold cavity during the demolding process, which leads to deformation, surface scratches or cracks of the compounded rubber products during demolding, resulting in poor demolding efficiency and quality.
A dual-action pneumatic and mechanical demolding method is adopted. Hollow push blocks and air pumps provide an air cushion effect to reduce friction, while mechanical ejection force ensures complete separation. Combined with a drive adjustment mechanism, the mold base can be closed and demolded.
It effectively reduces the risk of mold sticking to the mold during the demolding process of compounded rubber products, avoids deformation and damage, improves demolding efficiency and quality, and achieves an efficient and stable demolding process.
Smart Images

Figure CN224103442U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of demolding equipment, in particular to a rubber compound product demolding assisting device. BACKGROUND
[0002] Mixing is a process of mixing raw rubber or plasticized raw rubber with compounding agents into rubber compound by a rubber mixer, and is the most important production process in rubber processing. When producing and manufacturing rubber compound products, injection molds are needed to inject molten rubber compound into the mold cavity for injection molding, and then the molded rubber compound product needs to be demolded and taken out from the mold cavity.
[0003] According to the search, a rubber product demolding device is disclosed in a patent document with the authorization announcement No. CN222406981U, which comprises an operating table, a vertical plate is installed on the top outer wall of the operating table, a guide groove is formed in the vertical plate, a production mechanism is arranged on the vertical plate, the production mechanism comprises a motor, a bidirectional screw rod and a connecting plate, the motor is installed on the outer wall of the vertical plate, one end of the bidirectional screw rod is rotatably connected with the inner wall of the guide groove, the other end of the bidirectional screw rod is fixedly connected with the output end of the motor, the number of the connecting plates is two, the two connecting plates are symmetrically distributed on the two sides of the bidirectional screw rod and are threadedly connected to the bidirectional screw rod, and the two molds are arranged on the two connecting plates and are oppositely arranged. When in use, automatic demolding can be realized without manual demolding by workers, which not only reduces the labor intensity and production cost of the operators, but also improves the production efficiency.
[0004] The above-mentioned related scheme has the following disadvantages in actual use: during the demolding process of controlling the two mold bases to move away from each other, due to the strong adhesion between the rubber compound (especially the rubber compound with high viscosity formula) and the mold cavity, only using the push rod to apply mechanical ejection force to the molded rubber compound product to push it out of the mold, the rubber compound product may still be deformed, scratched or broken during the demolding process, resulting in poor demolding efficiency and demolding quality.
[0005] Therefore, we propose a rubber compound product demolding assisting device to solve the above-mentioned problems. Content of the utility model
[0006] The purpose of the present application is to provide a rubber compound product demolding assisting device, which has the advantages of pneumatic and mechanical double-acting demolding, gas lubrication to reduce friction and effectively reduce the risk of sticking, mechanical ejection to ensure complete separation, and the combination of the two to avoid damage to the rubber compound product during the demolding process, effectively improving the demolding efficiency and quality of the rubber compound product, and realizing the effect of efficient and stable demolding process.
[0007] The above technical problem of the application is achieved by the following technical scheme: a rubber compound product demolding assisting device, comprising a machine table, a vertical plate, two mold bases and a demolding assisting mechanism, the vertical plate is fixedly installed on the top of the machine table, a driving adjusting mechanism is arranged on the vertical plate, the two mold bases are arranged on the driving adjusting mechanism, a mold cavity is formed on one side of each of the two mold bases which are close to each other, a plurality of evenly distributed receiving grooves are formed on the inner walls of the sides of the two mold bases which are away from each other, four evenly distributed through holes are formed on the side of each of the two mold bases which are away from each other, eight through holes are in communication with corresponding receiving grooves respectively, the demolding assisting mechanism comprises two hollow air distribution plates fixedly installed on the front side wall of the vertical plate and eight hollow push blocks, the eight hollow push blocks are slidably installed in the corresponding receiving grooves respectively, four hollow cross bars are fixedly installed on the side of each of the two hollow air distribution plates which are close to each other, one end of each of the hollow cross bars extends into the corresponding hollow air distribution plate, the other end of each of the hollow cross bars penetrates through the corresponding through hole and is fixedly connected with the corresponding hollow push block, a plurality of evenly distributed air outlets are formed on the outer wall of each of the hollow push blocks.
[0008] Further, the demolding assisting mechanism further comprises an air pump fixedly installed on the top of the vertical plate, an L-shaped air conveying pipe is fixedly connected with the discharge end of the air pump, a U-shaped air conveying pipe is fixedly installed on the top of each of the two hollow air distribution plates, the two ends of the U-shaped air conveying pipe extend into the corresponding hollow air distribution plate respectively, and one end of the L-shaped air conveying pipe is fixedly connected with the U-shaped air conveying pipe.
[0009] Further, the inner wall of the receiving groove and the outer wall of the hollow push block are both smooth surface structures, and the outer wall of the hollow push block and the inner wall of the receiving groove are in sliding sealing cooperation.
[0010] Further, a rectangular transverse groove is formed on the front side wall of the vertical plate, the driving adjusting mechanism comprises a shaft seat fixedly installed on the left inner wall of the rectangular transverse groove, a bidirectional screw rod is rotatably installed on the right side of the shaft seat, two symmetrical rectangular blocks are threadedly sleeved on the bidirectional screw rod, the front ends of the two rectangular blocks extend out of the rectangular transverse groove, the two mold bases are fixedly installed on the front ends of the corresponding rectangular blocks respectively, a motor is fixedly installed on the right side wall of the vertical plate, a driving shaft is fixedly installed on the output shaft end of the motor, and the left end of the driving shaft is fixedly connected with the right end of the bidirectional screw rod.
[0011] Further, the two rectangular blocks are slidably installed in the rectangular transverse groove.
[0012] Further, a transverse hole is formed on the right inner wall of the rectangular transverse groove, and the left end of the driving shaft rotatably penetrates through the transverse hole.
[0013] Further, an injection port is formed on the top of one of the two mold bases.
[0014] The machine table is provided with a collecting box with an open top structure on the top, which is located below the mold base and is used to collect the rubber product.
[0015] The present application includes at least one of the following beneficial technical effects:
[0016] 1. The driving adjustment mechanism can control the movement of the two mold bases towards each other or away from each other, realizing the clamping and demolding of the two mold bases.
[0017] 2. The demolding assisting mechanism is designed to gradually extend the hollow push block outside the corresponding receiving groove during demolding, which can directly act on the edge of the formed rubber product and apply uniform mechanical ejection force to the product. The released airflow from the air outlet hole forms an air cushion effect, greatly reducing the adhesion and friction between the rubber product and the mold cavity, avoiding deformation, surface scratches or rupture of the rubber product during demolding, and then through pneumatic and mechanical double-acting demolding, gas lubrication reduces friction and effectively reduces the risk of sticking, mechanical ejection ensures complete separation, and the combination of the two avoids damage to the rubber product during demolding, effectively improving the demolding efficiency and quality of the rubber product, and realizing efficient and stable demolding process. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is a schematic diagram of the front view of the embodiment.
[0019] Figure 2 is a schematic diagram of the front view of the embodiment.
[0020] Figure 3 is Figure 2 is a schematic diagram of the enlarged structure of part A.
[0021] Figure 4 is a schematic diagram of the driving adjustment mechanism.
[0022] Figure 5 is a schematic diagram of the demolding assisting mechanism.
[0023] In the figure, 1 is the machine table; 2 is the vertical plate; 3 is the mold base; 4 is the driving adjustment mechanism; 41 is the shaft seat; 42 is the bidirectional screw; 43 is the rectangular block; 44 is the motor; 45 is the driving shaft; 5 is the rectangular transverse groove; 6 is the mold cavity; 7 is the receiving groove; 8 is the through hole; 9 is the hollow push block; 10 is the air outlet hole; 11 is the hollow air distribution plate; 12 is the hollow horizontal rod; 13 is the air pump; 14 is the L-shaped air pipe; 15 is the U-shaped air pipe; 16 is the injection port; 17 is the collecting box. DETAILED DESCRIPTION
[0024] The technical solutions of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0025] Referring to Figures 1-5 The present application provides a rubber compound product demolding assisting device, which comprises a machine table 1, a vertical plate 2, two mold bases 3 and a demolding assisting mechanism. The vertical plate 2 is fixedly installed on the top of the machine table 1, and a driving adjusting mechanism 4 is arranged on the vertical plate 2. The two mold bases 3 are arranged on the driving adjusting mechanism 4. The driving adjusting mechanism 4 can be used to control the two mold bases 3 to move towards each other or away from each other, so as to realize the closing and demolding of the two mold bases 3. The side of each of the two mold bases 3, which is close to the other, is provided with a mold cavity 6. When the closing of the two mold bases 3 is completed, the two mold cavities 6 form a closed injection mold cavity, so that the molten rubber compound can be formed in the closed injection mold cavity. The top of one of the two mold bases 3 is provided with an injection port 16 for adding molten rubber compound into the two mold cavities 6. The inner wall of the side, which is away from each other, of each of the two mold cavities 6 is provided with evenly distributed receiving grooves 7. The side, which is away from each other, of each of the two mold bases 3 is provided with four evenly distributed through holes 8. The eight through holes 8 are respectively communicated with the corresponding receiving grooves 7.
[0026] In the embodiment, the demolding assisting mechanism comprises two hollow air distribution plates 11 fixedly installed on the front side wall of the vertical plate 2 and eight hollow push blocks 9. The eight hollow push blocks 9 are respectively slidably installed in the corresponding receiving grooves 7. The side, which is close to each other, of the two hollow air distribution plates 11 is fixedly installed with four hollow cross bars 12. One end of the hollow cross bar 12 extends into the corresponding hollow air distribution plate 11. The other end of the hollow cross bar 12 penetrates through the corresponding through hole 8 and is fixedly communicated with the corresponding hollow push block 9. A plurality of evenly distributed air outlets 10 are arranged on the outer side wall of the hollow push block 9. During the demolding process of the two mold bases 3 moving away from each other, the integrated design of the mold cavity 6 and the receiving groove 7 allows the hollow push block 9 to extend out during demolding, which can directly act on the edge of the formed rubber compound product, thereby reducing the risk of sticking to the mold.
[0027] In this embodiment, the demolding assisting mechanism further comprises an air pump 13 fixedly installed on the top of the vertical plate 2, the discharge end of the air pump 13 is fixedly connected with an L-shaped air conveying pipe 14, the top of each of the two hollow air distribution plates 11 is fixedly installed with a same U-shaped air conveying pipe 15, the two ends of the U-shaped air conveying pipe 15 respectively extend into the corresponding hollow air distribution plate 11, the one end of the L-shaped air conveying pipe 14 is fixedly communicated with the U-shaped air conveying pipe 15, by the operation of the air pump 13, the air can be conveyed into the two hollow air distribution plates 11 through the L-shaped air conveying pipe 14 and the U-shaped air conveying pipe 15, and then the air entering the two hollow air distribution plates 11 is conveyed into the hollow push block 9 through the hollow cross rod 12, the design of the plurality of air outlets 10 on the hollow push block 9 releases the air flow at the same time during demolding, forms the air cushion effect, greatly reduces the adhesion and friction between the mixed rubber product and the mold cavity 6, avoids the deformation, surface scratch or rupture of the mixed rubber product during the demolding process, and further improves the demolding efficiency and quality of the mixed rubber product.
[0028] In this embodiment, the inner wall of the receiving groove 7 and the outer wall of the hollow push block 9 are both smooth surface structures, the outer wall of the hollow push block 9 is in sliding sealing cooperation with the inner wall of the receiving groove 7, which not only ensures the air tightness, but also avoids the infiltration of the molten mixed rubber material into the gap.
[0029] In this embodiment, a rectangular transverse groove 5 is formed in the front side wall of the vertical plate 2, the driving and adjusting mechanism 4 comprises a shaft seat 41 fixedly installed on the left side inner wall of the rectangular transverse groove 5, a bidirectional screw rod 42 is rotatably installed on the right side of the shaft seat 41, two symmetrical rectangular blocks 43 are threadedly sleeved on the bidirectional screw rod 42, the front ends of the two rectangular blocks 43 both extend out of the rectangular transverse groove 5, the two mold bases 3 are respectively fixedly installed on the front ends of the corresponding rectangular blocks 43, a motor 44 is fixedly installed on the right side wall of the vertical plate 2, a driving shaft 45 is fixedly installed on the output shaft end of the motor 44, the left end of the driving shaft 45 is fixedly connected with the right end of the bidirectional screw rod 42, the bidirectional screw rod 42 can be controlled to rotate by the motor 44, and then the two rectangular blocks 43 can be moved in the direction away from each other or in the direction close to each other, so that the two mold bases 3 are controlled to move in the direction close to each other or in the direction away from each other, and it should be noted that the motor 44 is a reversible motor.
[0030] In this embodiment, the two rectangular blocks 43 are both slidingly installed in the rectangular transverse groove 5, which ensures the stability and smoothness of the sliding of the two rectangular blocks 43, a horizontal hole is formed in the right side inner wall of the rectangular transverse groove 5, the left end of the driving shaft 45 rotatably penetrates through the horizontal hole, which ensures the smooth and stable rotation of the driving shaft 45.
[0031] In this embodiment, the top of the machine table 1 is placed with a collecting box 17 with an open top structure, the collecting box 17 is located below the mold base 3, and the collecting box 17 is used for collecting the mixed rubber product.
[0032] It should be noted that the motor 44 and the air pump can be purchased in the market, and the connection mode and control mode thereof belong to the mature technology in the field, and thus will not be described herein.
[0033] Through the above structure, the rubber product demolding assisting device provided by the application can drive the motor 44 to rotate in the forward direction in use, the output shaft of the motor 44 drives the driving shaft 45 and the bidirectional screw rod 42 to rotate in the forward direction, and then the two rectangular blocks 43 drive the corresponding mold bases 3 to move in the direction of approaching each other until the two mold bases 3 are tightly fitted, and the motor 44 is stopped, that is, the mold closing of the two mold bases 3 is completed, at this time, the two mold cavities 6 form a closed injection mold cavity, and the eight hollow push blocks 9 are completely retracted into the corresponding receiving grooves 7 to avoid interfering with the injection molding process.
[0034] Then, the molten rubber material is injected into the closed injection mold cavity formed by the two mold cavities 6 through the injection port 16 to form the required rubber product;
[0035] Then, the motor 44 is controlled to rotate in the reverse direction, the output shaft of the motor 44 drives the driving shaft 45 and the bidirectional screw rod 42 to rotate in the reverse direction, so that the two rectangular blocks 43 drive the corresponding mold bases 3 to move in the direction of moving away from each other for demolding, and the hollow push blocks 9 in the mold cavities 6 gradually extend out of the corresponding receiving grooves 7 during demolding, which can directly act on the edges of the molded rubber product to apply uniform mechanical ejection force to the product, assist the rubber product to separate from the mold cavity 6, and reduce the risk of sticking to the mold. At the same time, the air pump 13 is controlled to operate, and the compressed air is delivered to the hollow air distribution plates 11 on both sides through the L-shaped air conveying pipe 14 and the U-shaped air conveying pipe 15, and then enters each hollow push block 9 through the hollow cross bar 12. The compressed air is sprayed out from the air outlet holes 10 on the surface of the hollow push block 9 to form an air cushion layer between the product and the inner wall of the mold cavity 6, which can greatly reduce the adhesion and friction between the rubber product and the mold cavity 6, avoid deformation, surface scratches or rupture of the rubber product during demolding, and then realize pneumatic and mechanical double-acting demolding, gas lubrication to reduce friction and effectively reduce the risk of sticking to the mold, mechanical ejection to ensure complete separation, and both to avoid damage to the rubber product during demolding, effectively improve the demolding efficiency and quality of the rubber product, and realize efficient and stable demolding process.
[0036] The rubber product falling off from the mold cavity 6 can fall into the collection box 17.
Claims
1. A demolding aid device for compounded rubber products, characterized in that, The utility model relates to a moulding machine, including machine table (1), vertical board (2), two mould bases (3) and demoulding power assisting mechanism, vertical board (2) fixed mounting is installed on the top of machine table (1), be provided with drive adjusting mechanism (4) on vertical board (2), two mould bases (3) all are arranged on drive adjusting mechanism (4), two mould bases (3) all are set up the cavity (6) on the side of each other close, two cavities (6) are set up the receiving groove (7) of evenly distributed on the inner wall of the side of each other away, two mould bases (3) are set up four evenly distributed through -hole (8) on the side of each other away, eight through -hole (8) are communicated with corresponding receiving groove (7) respectively, The demoulding power assisting mechanism includes two hollow air distribution plates (11) fixedly installed on the front side wall of the vertical plate (2) and eight hollow push blocks (9), the eight hollow push blocks (9) are respectively and slidingly installed in the corresponding receiving grooves (7), the two hollow air distribution plates (11) are respectively and fixedly installed with four hollow cross bars (12) on the side of each other close, one end of the hollow cross bar (12) extends into the corresponding hollow air distribution plate (11), the other end of the hollow cross bar (12) penetrates the corresponding through -hole (8) and is fixedly communicated with the corresponding hollow push block (9), a plurality of evenly distributed air outlet holes (10) are formed in the outer side wall of the hollow push block (9).
2. The rubber compound ejection assisting device according to claim 1, characterized by: The demoulding power assisting mechanism further includes a gas pump (13) fixedly installed on the top of the vertical plate (2), an L-shaped gas conveying pipe (14) is fixedly connected to the discharge end of the gas pump (13), a U-shaped gas conveying pipe (15) is fixedly installed on the top of the two hollow air distribution plates (11), the two ends of the U-shaped gas conveying pipe (15) respectively extend into the corresponding hollow air distribution plates (11), and one end of the L-shaped gas conveying pipe (14) is fixedly communicated with the U-shaped gas conveying pipe (15).
3. The rubber compound ejection assisting device according to claim 1, characterized by: The inner wall of the receiving groove (7) and the outer wall of the hollow push block (9) are both smooth surfaces, and the outer wall of the hollow push block (9) is in sliding sealing cooperation with the inner wall of the receiving groove (7).
4. The rubber compound ejection assist device of claim 1, wherein: A rectangular transverse groove (5) is formed in the front side wall of the vertical plate (2), the drive adjusting mechanism (4) includes a shaft seat (41) fixedly installed on the left inner wall of the rectangular transverse groove (5), a bidirectional screw rod (42) is rotatably installed on the right side of the shaft seat (41), two symmetrical rectangular blocks (43) are threadedly sleeved on the bidirectional screw rod (42), the front ends of the two rectangular blocks (43) extend out of the rectangular transverse groove (5), the two mould bases (3) are respectively fixedly installed on the front ends of the corresponding rectangular blocks (43), a motor (44) is fixedly installed on the right side wall of the vertical plate (2), a drive shaft (45) is fixedly installed on the output shaft end of the motor (44), and the left end of the drive shaft (45) is fixedly connected with the right end of the bidirectional screw rod (42).
5. The rubber compound ejection assist device of claim 4, wherein: The two rectangular blocks (43) are slidingly installed in the rectangular transverse groove (5).
6. The rubber compound ejection assist device of claim 4, wherein: A transverse hole is formed in the right inner wall of the rectangular transverse groove (5), and the left end of the drive shaft (45) rotatably penetrates the transverse hole.
7. The rubber compound ejection assist device of claim 1, wherein: The top of one of the two mold bases (3) is provided with an injection port (16).
8. The rubber compound ejection assist device of claim 1, wherein: The top of the machine (1) is provided with a collecting box (17) with an open top structure, which is located below the mold base (3), and is used for collecting rubber products.
Citation Information
Patent Citations
Rubber product demolding device
CN222406981U