Demolding device for rubber production and processing and demolding method thereof

Abstract

The invention relates to the technical field of demolding devices, and discloses a demolding device for rubber production and processing and a demolding method thereof.The demolding device comprises a base and an inner groove formed in the base, the inner wall of the base is fixedly connected with a bottom side mold, the inner wall of the bottom side mold is provided with a bottom mold and a secondary demolding part, and the secondary demolding part is installed on the base; the ejection demolding part is arranged on the inner wall of the inner groove; the cleaning part is mounted on the base; the secondary demolding part comprises a demolding assembly, and the demolding assembly is arranged on the base. By arranging the secondary demolding part, the problems that in the using process of an existing demolding device, a single ejection type demolding structure is mostly adopted, a rubber product is directly ejected out through an ejection rod, consequently, when a convex rod is directly ejected out, the stress of the product is concentrated, and surface scratches, damage, even deformation and other defects are likely to occur are solved; therefore, the subsequent rubber product processing quality is influenced.

Description

Technical Field

[0001] This invention relates to the field of demolding device technology, specifically to a demolding device and demolding method for rubber production and processing. Background Technology

[0002] With the rapid development of the rubber industry, rubber products are widely used in many industries such as automobiles, electronics, and construction due to their good elasticity, wear resistance and sealing properties. Market demand continues to rise. In the production process of rubber products, demolding is a key process that connects molding and subsequent processing. The performance of the demolding device directly determines the molding accuracy, surface quality and production efficiency of rubber products. Therefore, an efficient and stable demolding device is needed to complete the demolding operation.

[0003] However, most existing demolding devices use a one-time ejection demolding structure, which directly ejects the rubber product through the ejector pin. This results in concentrated force on the product when the ejector pin is ejected directly, which can easily cause surface scratches, damage, or even deformation, thus affecting the processing quality of subsequent rubber products. Summary of the Invention

[0004] The purpose of this invention is to provide a demolding device and demolding method for rubber production and processing. By setting up a secondary demolding section, the invention solves the problem that most existing demolding devices adopt a single ejection demolding structure, which directly ejects the rubber product through the ejector rod. This results in concentrated force on the product when the ejector rod directly ejects, which easily leads to surface scratches, damage, or even deformation and other defects, thus affecting the quality of subsequent rubber product processing.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a demolding device and method for rubber production and processing, comprising a base and an inner groove formed within the base. A bottom mold is fixedly connected to the inner wall of the base, and a bottom mold is provided on the inner wall of the bottom mold. A secondary demolding section is mounted on the base; an ejector demolding section is disposed on the inner wall of the inner groove; and a cleaning section is mounted on the base. The secondary demolding section includes a demolding assembly disposed on the base; and a reset assembly disposed on the base. The demolding assembly includes a right-angled trapezoid fixedly connected to the inner wall of the top of the base. The base contains an isosceles trapezoidal block. Two connecting blocks are fixedly connected to the outer wall of the isosceles trapezoidal block. A spring damper is fixedly connected to the right side of each of the two connecting blocks. A fixing block is fixedly connected to the right side of each of the two spring dampers. An ejector is provided on the base. The outer wall of the bottom mold contacts the inner wall of the bottom mold. The ejector includes a fixing ring one fixedly connected to the bottom of the bottom mold. The bottom of the fixing ring one is fixedly connected to a return spring. A protruding rod is slidably connected to the inner wall of the fixing ring one. The outer wall of the protruding rod is fixedly connected to a second fixing ring. The outer wall of the protruding rod contacts the inner wall of the bottom mold.

[0006] Furthermore, the reset assembly includes a second fixing ring disposed below the bottom mold, a reset spring fixedly connected to the top of the second fixing ring, a top frame fixedly connected to the top of the base, and an upper mold assembly mounted on the top frame.

[0007] Furthermore, the ejection and demolding part includes a sliding assembly disposed on the inner wall of the inner groove; a driving assembly installed in the inner groove; the sliding assembly includes a limiting rod fixedly connected to the inner wall of the inner groove, a sliding plate slidably connected to the outer wall of the limiting rod, and the top of the sliding plate slidably connected to the isosceles trapezoidal block; the bottoms of the two fixed blocks are fixedly connected to the top of the sliding plate.

[0008] Furthermore, the drive assembly includes an electric telescopic rod fixedly connected to the inner wall of the base, the output shaft of the electric telescopic rod being fixedly connected to the top of the sliding plate, and a connecting rod being fixedly connected to the top of the sliding plate; the top of each connecting rod is fixedly connected to the bottom of the bottom mold.

[0009] Furthermore, the cleaning unit includes a bracket fixedly connected to the top of the base, with a pipe fixedly connected to the inner wall of the bracket, and a suction nozzle connected to the right side of the pipe. An air supply component is provided on the base. The suction nozzle is used to draw airflow from the bottom mold. The isosceles trapezoidal block is adapted to the right trapezoidal block. The air supply component includes a flexible hose connected to the outer wall of the protruding rod. An air chamber is opened inside the protruding rod, and an air passage is opened on the base, with all air passages connected to the air chamber.

[0010] The present invention has the following beneficial effects: This invention features a secondary demolding section. After the initial demolding is completed by the ejector demolding section, the sliding plate continues to move upward, causing the isosceles trapezoidal block to contact the right-angled trapezoidal block. Under the pressure of the right-angled trapezoidal block, the isosceles trapezoidal block moves to the right and compresses the spring damper. Simultaneously, its inclined surface presses the convex rod upward, lifting the rubber product and separating it from the bottom mold, thus completing the secondary demolding. After demolding, the return spring and the spring damper respectively drive the convex rod and the isosceles trapezoidal block to return to their original positions. This avoids the problem of the ejector rod directly ejecting the rubber product, causing the product to be subjected to concentrated force, resulting in surface scratches, damage, or even deformation. This ensures the processing quality of subsequent rubber products. (2) By setting an ejector demolding part, after the demolding is started, the electric telescopic rod of the drive component retracts, which drives the sliding plate of the sliding component to slide smoothly along the limit rod. The sliding plate drives the bottom mold to rise synchronously through the connecting rod. Since the bottom mold is fixed, the rubber product is separated from the bottom mold when the bottom mold is raised, thus completing the first demolding. In conjunction with the secondary demolding part, a collaborative mode of "first separation + second thorough demolding" is formed, which greatly improves the efficiency and reliability of the demolding operation and avoids the defects of the single ejector demolding of the existing device. (3) By setting up a cleaning unit, the present invention delivers compressed gas to the inner wall of the bottom mold and the bottom side mold through the air supply component during the demolding operation and after demolding is completed, blows away the residual rubber debris, and then uses the negative pressure generated by the blower to suck up the airflow containing debris through the suction nozzle and filter it. This not only avoids the rubber debris remaining on the inner wall of the mold from affecting the molding accuracy and demolding effect of subsequent products, but also prevents the debris from falling into the inner groove and damaging the internal parts of the device, reducing the manual intervention of mold cleaning and improving the work efficiency.

[0011] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the front cross-sectional structure of the present invention; Figure 3 This is a schematic cross-sectional view of the right side of the present invention; Figure 4 This is a schematic diagram of the left cross-sectional structure of the present invention; Figure 5 This is a partial cross-sectional view of the secondary demolding section of the present invention; Figure 6 This is a partial cross-sectional view of the demolding assembly of the present invention; Figure 7 This is a partial cross-sectional view of the cleaning section of the present invention; Figure 8 This is a partial cross-sectional view of the mold assembly of the present invention.

[0014] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Base; 1. Inner groove; 1. Bottom side mold; 1. Bottom mold; 1. Top frame; 1. Upper mold assembly; 2. Secondary demolding section; 2. Demolding assembly; 2. Right-angled trapezoidal block; 2. Isosceles trapezoidal block; 2. Connecting block; 2. Spring damper; 2. Fixing block; 2. Fixing ring one; 2. Protruding rod; 2. Reset assembly; 2. Fixing ring two; 2. Reset spring; 3. Ejection demolding section; 3. Sliding assembly; 3. Limiting rod; 3. Sliding plate; 3. Drive assembly; 3. Electric telescopic rod; 3. Connecting rod; 4. Cleaning section; 4. Hoses; 4. Air chamber; 4. Air passage; 4. Support; 4. Pipe; 4. Nozzle. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figures 1-8 As shown, the present invention is a demolding device and demolding method for rubber production and processing, including a base 111 and an inner groove 112 formed in the base 111. A bottom side mold 113 is fixedly connected to the inner wall of the base 111, and a bottom mold 114 is provided on the inner wall of the bottom side mold 113. A secondary demolding part 2 is installed on the base 111. An ejector demolding part 3 is provided on the inner wall of the inner groove 112. A cleaning part 4 is installed on the base 111. A top frame 115 is fixedly connected to the top of the base 111, and an upper mold assembly 116 is installed on the top frame 115.

[0017] The secondary demolding section 2 includes a demolding assembly 21, which is mounted on the base 111; and a reset assembly 22, which is also mounted on the base 111. The demolding assembly 21 includes a right-angled trapezoidal block 211 fixedly connected to the inner wall of the top of the base 111. An isosceles trapezoidal block 212 is provided inside the base 111. Two connecting blocks 213 are fixedly connected to the outer wall of the isosceles trapezoidal block 212. Spring dampers 214 are fixedly connected to the right side of each of the two connecting blocks 213. Fixing blocks 215 are fixedly connected to the right side of each of the two spring dampers 214. An ejector is provided on the base 111. The outer wall of the bottom mold 114 contacts the inner wall of the bottom side mold 113. The ejector includes a fixing block 215. A fixing ring 216 is attached to the bottom of the bottom mold 114. The bottom of the fixing ring 216 is fixedly connected to the return spring 222. A protruding rod 217 is slidably connected to the inner wall of the fixing ring 216. The outer wall of the protruding rod 217 is fixedly connected to the fixing ring 221. The outer wall of the protruding rod 217 is in contact with the inner wall of the bottom mold 114. The reset assembly 22 includes a fixing ring 221 located below the bottom mold 114. A return spring 222 is fixedly connected to the top of the fixing ring 221. By setting the secondary demolding part 2, the problem of the ejector rod directly ejecting the rubber product, causing the product to be subjected to concentrated force and resulting in surface scratches, damage, or even deformation can be avoided, thereby ensuring the processing quality of the subsequent rubber products.

[0018] The ejection and demolding part 3 includes a sliding assembly 31, which is disposed on the inner wall of the inner groove 112; and a driving assembly 32, which is installed in the inner groove 112. The sliding assembly 31 includes a limiting rod 311 fixedly connected to the inner wall of the inner groove 112, and a sliding plate 312 slidably connected to the outer wall of the limiting rod 311. The top of the sliding plate 312 is slidably connected to the isosceles trapezoidal block 212. The bottoms of two fixed blocks 215 are fixedly connected to the top of the sliding plate 312. The driving assembly 32 includes a fixed... An electric telescopic rod 321 is fixedly connected to the inner wall of the base 111. The output shaft of the electric telescopic rod 321 is fixedly connected to the top of the sliding plate 312. A connecting rod 322 is fixedly connected to the top of the sliding plate 312. The top of the connecting rod 322 is fixedly connected to the bottom of the bottom mold 114. By setting the ejection demolding part 3, a collaborative mode of "initial separation + secondary complete demolding" is formed with the secondary demolding part 2, which greatly improves the efficiency and reliability of the demolding operation and avoids the defects of the existing single ejection demolding device.

[0019] The cleaning unit 4 includes a bracket 414 fixedly connected to the top of the base 111. A pipe 415 is fixedly connected to the inner wall of the bracket 414. A suction nozzle 416 is connected to the right side of the pipe 415. An air supply component is provided on the base 111. The suction nozzle 416 is used to draw airflow from the bottom mold 113. An isosceles trapezoidal block 212 is adapted to a right trapezoidal block 211. The air supply component includes a flexible hose 411 connected to the outer wall of the protruding rod 217. An air chamber 412 is opened inside the protruding rod 217. An air passage 413 is opened on the base 111. All air passages 413 are connected to the air chamber 412. By setting up the cleaning unit 4, rubber debris is prevented from remaining on the inner wall of the mold, which would affect the molding accuracy and demolding effect of subsequent products. It also prevents debris from falling into the inner groove 112 and damaging the internal components of the device, reducing manual intervention in mold cleaning and improving work efficiency.

[0020] In use, pipe 415 is connected to the blower, and hose 411 is connected to the air pump. The pre-treated rubber material is placed into the bottom mold 113. The upper mold assembly 116 on the top frame 115 is controlled to move the corresponding part of the upper mold assembly 116 downward to cooperate with the bottom mold 113, thus completing the molding of the rubber material. During demolding, the corresponding part of the upper mold assembly 116 moves upward to separate from the molded rubber product. The air pump connected to hose 411 is started, and the air pump injects compressed gas into hose 411. The compressed gas enters the air chamber 412 in the protrusion 217 and then enters the air... When gas is injected, the electric telescopic rod 321 is activated. The electric telescopic rod 321 retracts, causing the sliding plate 312 to slide upward on the outer wall of the limiting rod 311. The sliding plate 312 simultaneously drives the connecting rod 322 and the isosceles trapezoidal block 212 to move upward. The connecting rod 322 drives the bottom mold 114 to rise upward. Since the bottom side mold 113 is fixedly connected to the inner wall of the base 111, the rubber product rises synchronously when the bottom mold 114 rises, so that the rubber product separates from the bottom side mold 113, thus completing the initial demolding of the rubber product from the bottom side mold 113. After the initial demolding is completed, the sliding plate 312 continues to drive the isosceles trapezoidal block 212 upward, causing it to contact the right-angled trapezoidal block 211 on the inner wall of the base 111. As the isosceles trapezoidal block 212 continues to rise, the right-angled trapezoidal block 211 exerts a rightward squeezing force on the isosceles trapezoidal block 212, causing it to move to the right. The isosceles trapezoidal block 212 drives the two connecting blocks 213 to move to the right simultaneously, and the two connecting blocks 213 compress the two spring dampers respectively. 214, the right sides of the two spring dampers 214 are fixedly connected to the fixed blocks 215, and the two fixed blocks 215 are fixedly connected to the sliding plate 312. At the same time, the inclined surface of the isosceles trapezoidal block 212 presses the protruding rod 217, causing the protruding rod 217 to move upward under the limiting action of the inner wall of the fixed ring 216. The top of the protruding rod 217 pushes the rubber product upward, causing the rubber product to separate from the bottom mold 114, completing the secondary demolding of the rubber product from the bottom mold 114, and realizing the complete demolding of the rubber product. After the rubber product is completely demolded, the air passage 413 on the protrusion 217 continuously sprays compressed gas to clean the inner wall of the bottom mold 114 and the inner wall of the bottom side mold 113, removing residual rubber debris. At the same time, the fan connected to the pipe 415 is turned on, and the fan generates negative pressure. The negative pressure is transmitted to the suction nozzle 416 through the pipe 415. The suction nozzle 416 sucks up the airflow containing rubber debris blown out from the air passage 413 in the bottom side mold 113, preventing the rubber debris from falling into the inner groove 112. Then, the sucked airflow is filtered to remove impurities, thus completing the cleaning of the bottom side mold 113 and the bottom mold 114, which facilitates the subsequent demolding operation. After cleaning, turn off the air pump and fan, control the electric telescopic rod 321 to extend, drive the sliding plate 312 to move downwards and reset, the sliding plate 312 drives the isosceles trapezoidal block 212, connecting rod 322 and bottom mold 114 to reset downwards, after the isosceles trapezoidal block 212 separates from the right trapezoidal block 211, the two spring dampers 214 extend and reset, drive the isosceles trapezoidal block 212 and the two connecting blocks 213 to move to the left and reset, at the same time the reset spring 222 at the top of the fixed ring 221 extends and reset, drive the protruding rod 217 to move downwards and reset, completing the reset of the entire device, waiting for the next demolding operation.

[0021] It should be noted that the control of the upper mold assembly 116 and the electric telescopic rod 321 in this application can be achieved by using a program set in the control panel and inputting relevant parameters as needed for automated control. This control method can be achieved using existing technologies, such as PLC.

[0022] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A demolding device for rubber production and processing, comprising a base (111) and an inner groove (112) formed within the base (111), wherein a bottom side mold (113) is fixedly connected to the inner wall of the base (111), and a bottom mold (114) is provided on the inner wall of the bottom side mold (113), characterized in that, Also includes: Secondary demolding part (2), which is mounted on base (111); Ejector demolding part (3), the ejector demolding part (3) is provided on the inner wall of the inner groove (112); Cleaning unit (4), which is mounted on base (111); The secondary demolding section (2) includes a demolding assembly (21), which is disposed on the base (111); and A reset assembly (22) is disposed on a base (111); The demolding assembly (21) includes a right-angled trapezoidal block (211) fixedly connected to the inner wall of the top of the base (111). An isosceles trapezoidal block (212) is provided inside the base (111). Two connecting blocks (213) are fixedly connected to the outer wall of the isosceles trapezoidal block (212). A spring damper (214) is fixedly connected to the right side of each of the two connecting blocks (213). A fixing block (215) is fixedly connected to the right side of each of the two spring dampers (214). An ejector is provided on the base (111). The outer wall of the bottom mold (114) is in contact with the inner wall of the bottom side mold (113).

2. The demolding device for rubber production and processing according to claim 1, characterized in that, The top of the base (111) is fixedly connected to a top frame (115), and an upper mold assembly (116) is installed on the top frame (115).

3. The demolding device for rubber production and processing according to claim 2, characterized in that, The ejector demolding part (3) includes a sliding assembly (31), which is disposed on the inner wall of the inner groove (112); and A drive assembly (32) is installed in an inner groove (112).

4. The demolding device for rubber production and processing according to claim 3, characterized in that, The cleaning unit (4) includes a bracket (414) fixedly connected to the top of the base (111), a pipe (415) fixedly connected to the inner wall of the bracket (414), a suction nozzle (416) connected to the right side of the pipe (415), and an air supply component on the base (111). The nozzle (416) is used to draw airflow from the bottom side mold (113), and the isosceles trapezoidal block (212) is adapted to the right trapezoidal block (211).

5. A demolding device for rubber production and processing according to claim 4, characterized in that, The reset assembly (22) includes a second fixing ring (221) disposed below the bottom mold (114), and a reset spring (222) is fixedly connected to the top of the second fixing ring (221).

6. A demolding device for rubber production and processing according to claim 5, characterized in that, The sliding assembly (31) includes a limiting rod (311) fixedly connected to the inner wall of the inner groove (112), and a sliding plate (312) is slidably connected to the outer wall of the limiting rod (311). The top of the sliding plate (312) is slidably connected to the isosceles trapezoidal block (212). The bottom of both fixed blocks (215) is fixedly connected to the top of the sliding plate (312).

7. A demolding device for rubber production and processing according to claim 6, characterized in that, The drive assembly (32) includes an electric telescopic rod (321) fixedly connected to the inner wall of the base (111). The output shaft of the electric telescopic rod (321) is fixedly connected to the top of the sliding plate (312). A connecting rod (322) is fixedly connected to the top of the sliding plate (312). The top of each connecting rod (322) is fixedly connected to the bottom of the bottom mold (114).

8. A demolding device for rubber production and processing according to claim 7, characterized in that, The ejector includes a fixing ring one (216) fixedly connected to the bottom of the bottom mold (114). The bottom of the fixing ring one (216) is fixedly connected to a reset spring (222). A protruding rod (217) is slidably connected to the inner wall of the fixing ring one (216). The outer wall of the protruding rod (217) is fixedly connected to the fixing ring two (221). The outer wall of the protruding rod (217) is in contact with the inner wall of the bottom mold (114).

9. A demolding device for rubber production and processing according to claim 8, characterized in that, The gas supply component includes a flexible hose (411) connected to the outer wall of the protruding rod (217), an air chamber (412) is provided inside the protruding rod (217), and an air passage (413) is provided on the base (111), with several air passages (413) connected to the air chamber (412).

10. The demolding method of the demolding device for rubber production and processing according to claim 1, wherein the demolding device for rubber production and processing as described in claim 1 is characterized in that, Includes the following steps; S1: During demolding, the corresponding part of the upper mold assembly (116) moves upward and separates from the molded rubber product. The air pump connected to the hose (411) is started. The air pump injects compressed gas into the hose (411). After the compressed gas enters the air chamber (412) in the protrusion (217), it enters the air passage (413). At the same time as the gas is injected, the electric telescopic rod (321) is started. The electric telescopic rod (321) retracts and drives the sliding plate (312) to slide upward on the outer wall of the limit rod (311). The sliding plate (312) synchronously drives the connecting rod (322) and the isosceles trapezoidal block (212) to move upward. The connecting rod (322) drives the bottom mold (114) to rise upward. Since the bottom side mold (113) is fixedly connected to the inner wall of the base (111), when the bottom mold (114) rises, it drives the rubber product to rise synchronously, so that the rubber product is separated from the bottom side mold (113), thus completing the initial demolding of the rubber product from the bottom side mold (113). S2: After the initial demolding is completed, the sliding plate (312) continues to drive the isosceles trapezoidal block (212) to rise, so that the isosceles trapezoidal block (212) contacts the right-angled trapezoidal block (211) on the inner wall of the top of the base (111). As the isosceles trapezoidal block (212) continues to rise, the right-angled trapezoidal block (211) exerts a rightward squeezing force on the isosceles trapezoidal block (212), causing the isosceles trapezoidal block (212) to move to the right. The isosceles trapezoidal block (212) drives the two connecting blocks (213) to move to the right synchronously. The two connecting blocks (213) respectively compress the two spring dampers. The two spring dampers (214) are fixedly connected to the right side of the fixed block (215), and the two fixed blocks (215) are fixedly connected to the sliding plate (312). At the same time, the inclined surface of the isosceles trapezoidal block (212) squeezes the protruding rod (217), causing the protruding rod (217) to move upward under the limiting action of the inner wall of the fixed ring (216). The top of the protruding rod (217) pushes the rubber product upward, so that the rubber product is separated from the bottom mold (114), completing the secondary demolding of the rubber product from the bottom mold (114) and realizing the complete demolding of the rubber product. S3: After the product is completely demolded, the air passage (413) on the protrusion (217) continuously sprays compressed gas to clean the inner wall of the bottom mold (114) and the inner wall of the bottom side mold (113), removing residual rubber debris. At the same time, the fan connected to the pipe (415) is turned on, and the fan generates negative pressure. The negative pressure is transmitted to the suction nozzle (416) through the pipe (415). The suction nozzle (416) sucks up the airflow with rubber debris blown out from the air passage (413) in the bottom side mold (113) to prevent the rubber debris from falling into the inner groove (112). Then the sucked airflow is filtered to remove impurities, and the cleaning of the bottom side mold (113) and the bottom mold (114) can be completed, which is convenient for subsequent demolding operations. S4: After cleaning, turn off the air pump and fan, control the electric telescopic rod (321) to extend, drive the sliding plate (312) to move downwards to reset, the sliding plate (312) drives the isosceles trapezoidal block (212), connecting rod (322) and bottom mold (114) to reset downwards, after the isosceles trapezoidal block (212) separates from the right trapezoidal block (211), the two spring dampers (214) extend to reset, drive the isosceles trapezoidal block (212) and two connecting blocks (213) to move to the left to reset, at the same time the reset spring (222) at the top of the fixed ring (221) extends to reset, drive the convex rod (217) to move downwards to reset, complete the reset of the entire device, and wait for the next demolding operation.

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