A vulcanizer

Abstract

The application relates to a vulcanizing machine and relates to the technical field of vulcanizing equipment. The vulcanizing machine comprises a base, a lower mold and a heating assembly arranged on the base, an upper mold arranged above the lower mold and a power member for driving the upper mold to reciprocatingly move towards the lower mold; the lower mold and the upper mold are both provided with a placing cavity for placing a core rod and a forming cavity for injecting molten particles, the upper mold is provided with an injection port communicated with the forming cavity, the side surface of the base is provided with an injection molding machine for heating plastic particles, an injection pipe for connecting the injection port and the injection molding machine; extrusion blocks are arranged below the core rods in the placing cavities of the lower mold, the two extrusion blocks are symmetrically arranged on the opposite side surfaces of the lower mold, driving members for driving the extrusion blocks to reciprocatingly move are fixed on the base, and limit grooves are arranged on the extrusion blocks; in the application, the possibility of damage or tearing of the umbrella skirt caused by uneven force exertion during demolding is reduced.

Description

Technical Field

[0001] This application relates to the technical field of vulcanizing equipment, and in particular to a vulcanizing machine. Background Technology

[0002] A vulcanizing machine is a specialized piece of equipment used for processing polymer materials such as rubber and silicone. It uses heating and pressurization to induce a chemical reaction in the material under high temperature and pressure, achieving cross-linking and curing. In the production of insulator skirts, the main function of the vulcanizing machine is to inject liquid or semi-solid rubber material into a mold and vulcanize it under specific temperature and pressure, causing the rubber material to adhere tightly to the mandrel, forming a robust and durable skirt structure.

[0003] In related technologies, vulcanizing machines are compact in structure and powerful in function. Supported by a base, the lower mold is securely mounted on it, while the upper mold is precisely positioned above the lower mold. The two are connected by a hydraulic cylinder to achieve mold closing, together forming the vulcanizing cavity. The injection molding machine is cleverly placed beside the base, seamlessly connecting to the injection port of the upper mold via injection pipes, ensuring smooth injection of molten plastic into the vulcanizing cavity. The heating system, adjacent to the lower mold, evenly transfers heat to the mold and rubber material, guaranteeing effective vulcanization. The workflow is rigorous: first, the mold closes; then, injection molding is performed; finally, the heating system is activated to vulcanize the mold, ensuring precision and efficiency at every step.

[0004] However, while existing vulcanizing machine designs demonstrate high efficiency and stability during injection molding and vulcanization, they face challenges in the demolding stage. Specifically, certain areas of the skirt structure are designed to be relatively thin, directly limiting the corresponding space within the vulcanization chamber. In this situation, traditional manual demolding methods, due to the difficulty in ensuring uniform force application, are prone to causing damage or tearing of the skirt edges during operation. This not only reduces the product's aesthetics but also seriously impairs its performance and durability, becoming a bottleneck restricting production efficiency and product quality. Summary of the Invention

[0005] The purpose of this application is to provide a vulcanizing machine that solves the possibility of edge damage or tearing of the umbrella skirt due to uneven force during the demolding process.

[0006] The vulcanizing machine provided in this application adopts the following technical solution:

[0007] A vulcanizing machine includes a base, on which a lower mold and a heating assembly are disposed. An upper mold is disposed above the lower mold, and a power component is disposed on the base to drive the upper mold to reciprocate towards the lower mold. Both the lower and upper molds have placement cavities for inserting a mandrel and molding cavities for injecting molten particles. The upper mold has an injection port communicating with the molding cavity. An injection molding machine for heating plastic particles and an injection pipe for connecting the injection port and the injection molding machine are disposed on the side of the base. An extrusion block is disposed below the mandrel in the placement cavity of the lower mold. Two extrusion blocks are symmetrically disposed on opposite sides of the lower mold. A driving component is fixed on the base to drive the extrusion blocks to reciprocate towards the upper mold. A limiting groove is disposed on the extrusion block for inserting the outer periphery of the mandrel.

[0008] By adopting the above technical solution, due to the cooperative arrangement of the extrusion block and the driving component, when the finished product is demolded, the driving component located below the mandrel is activated, which drives the extrusion block to move away from the base, so that both ends of the mandrel are simultaneously subjected to external force and detached from the placement cavity of the lower mold. Finally, the finished product is removed from the two extrusion blocks by the workers. Because the applied force is uniform, the possibility of uneven force during demolding causing damage or tearing of the umbrella skirt is reduced.

[0009] Optionally, the driving component is a servo electric cylinder mounted on the side of the base, and the telescopic rod of the servo electric cylinder is fixedly connected to the side of the extrusion block away from the limiting groove.

[0010] By adopting the above technical solution, the servo electric cylinder can more precisely control the moving speed and moving distance of the extrusion block, improve the uniformity of the thrust applied to the mandrel, and further reduce the possibility of the umbrella skirt breaking or tearing during demolding.

[0011] Optionally, a support plate is slidably mounted on the base, the servo electric cylinder is fixed on the support plate, the sliding direction of the support plate is perpendicular to the length direction of the mandrel, and a drive source for driving the support plate to slide back and forth is provided on the base.

[0012] By adopting the above technical solution, due to the coordinated arrangement of the drive source and the support plate, the extrusion block can be moved to a position away from the lower mold when demolding is not required, thereby reducing the possible interference to the workers during the injection molding vulcanization process.

[0013] Optionally, the base is provided with an adjustment assembly, which includes an air jet pipe located on one side of the vertical side of the lower mold. The air jet pipe has several air jet ports on its side facing the placement cavity, and an air inlet connected to an external pipe is fixed on the air jet pipe. The air jet pipe is parallel to the length direction of the mandrel, and a support frame for supporting the air jet pipe is fixed on the side of the extrusion block.

[0014] By adopting the above technical solution, due to the installation of the air jet pipe, after demolding, the upper and lower molds can be cleaned by blowing air through the air jet pipe, reducing the difficulty for subsequent workers to clean the impurities adhering to the placement cavity and molding cavity.

[0015] Optionally, a placement platform is fixed on the side of the lower mold, and a placement notch for inserting an air jet pipe is provided on the placement platform.

[0016] By adopting the above technical solution, during the operation of the vulcanizing machine, the air jet pipe can be moved to the placement notch on the placement platform due to the setting of the placement notch on the placement platform, reducing the possibility of deformation or poor arc at the connection between the air jet pipe and the extrusion block due to long-term support.

[0017] Optionally, the side of the extrusion block is fixed with a diagonal brace for supporting the support frame.

[0018] By adopting the above technical solution, the diagonal bracing can better support the support frame, thereby improving the stability of the jet pipe during application.

[0019] Optionally, a water spray pipe for spraying lubricating fluid is fixed on the support frame, located on the side of the jet pipe. The water spray pipe has several spray holes on its side facing the placement cavity, and an inlet for connecting to an external pipeline is provided on the water spray pipe.

[0020] By adopting the above technical solution, due to the coordinated setting of the water spray pipe, after the workers blow away the impurities adhering to the upper and lower molds through the air jet pipe, the water spray pipe is then used to spray the lubricant into the corresponding molding cavity, reducing the possibility that the umbrella skirt will adhere to the inner wall of the molding cavity and be difficult to demold after subsequent injection molding.

[0021] Optionally, the support frame is provided with a rotating shaft and a micro motor that drives the rotating shaft to rotate, and a cleaning cotton is fixed on the outer periphery of the rotating shaft.

[0022] By adopting the above technical solution, due to the application of the cleaning cotton, after the staff blows away the impurities adhering to the upper and lower molds through the air jet pipe, the cleaning cotton can be further placed in the placement cavity and the forming cavity, and the cleaning cotton can be rotated by the micro motor, thereby further cleaning the inside of the placement cavity and the forming cavity, further reducing the cleaning difficulty for subsequent staff.

[0023] Optionally, the support frame is also equipped with a cooling fan.

[0024] By adopting the above technical solution, the temperature of the umbrella skirt surface can be reduced after the upper and lower molds are separated and before demolding. The cooling fan can drive the air circulation, so that the newly demolded umbrella skirt can be cooled better.

[0025] Optionally, an elastic pad is fixed on the inner wall of the limiting groove, and the elastic pad is provided with a plurality of anti-slip patterns.

[0026] By adopting the above technical solution, when the extrusion block pushes the mandrel upward, the buffer setting of the elastic pad reduces the possibility of wear on the mandrel part in the limiting groove.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Due to the coordinated design of the extrusion block and the drive unit, when the finished product is demolded, the drive unit located below the mandrel is activated, which drives the extrusion block to move away from the base. This causes both ends of the mandrel to be simultaneously subjected to external force and ejected from the placement cavity of the lower mold. Finally, the finished product is removed from the two extrusion blocks by the operator. Because the applied force is uniform, the possibility of uneven force during demolding, which could cause damage or tearing of the umbrella skirt, is reduced. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0031] Figure 2 This is a partial cross-sectional structural diagram of an embodiment of this application;

[0032] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle;

[0033] Figure 4 This is a schematic diagram illustrating the installation and cooperation of the extrusion block and the support frame in an embodiment of this application;

[0034] Figure 5 This is a partial cross-sectional view of the installation and cooperation of the extrusion block and the support frame in an embodiment of this application;

[0035] Figure 6 yes Figure 5 Enlarged schematic diagram of part B;

[0036] Figure 7 This is a schematic diagram illustrating the installation and assembly of the cooling fan and support frame in an embodiment of this application;

[0037] Figure 8This is a partial structural diagram illustrating the installation and assembly of the placement platform in an embodiment of this application.

[0038] In the diagram, 1 is the base; 11 is the support plate; 12 is the drive source; 121 is the first cylinder; 2 is the lower mold; 21 is the placement cavity; 22 is the molding cavity; 3 is the upper mold; 4 is the placement platform; 41 is the placement notch; 5 is the power component; 51 is the hydraulic cylinder; 6 is the extrusion block; 61 is the limiting groove; 62 is the elastic pad; 621 is the anti-slip texture; 63 is the support frame; 631 is the rotating shaft; 632 is the micro motor; 633 is the cleaning cotton; 64 is the diagonal brace; 65 is the cooling fan; 7 is the drive component; 71 is the servo electric cylinder; 8 is the adjustment component; 81 is the jet pipe; 811 is the jet nozzle; 812 is the air inlet; 82 is the water spray pipe; 821 is the water spray hole; 822 is the liquid inlet. Detailed Implementation

[0039] The present application will be further described in detail below with reference to all the accompanying drawings.

[0040] Example:

[0041] Reference Figure 1 and Figure 2 A vulcanizing machine includes a base 1, on which a lower mold 2 and a heating assembly (not shown) are disposed. An upper mold 3 located above the lower mold 2 and a power component 5 for driving the upper mold 3 to reciprocate towards the lower mold 2 are disposed on the base 1, wherein the power component 5 is a hydraulic cylinder 51; and the vulcanizing machine has a three-station structure, that is, there are three sets of upper molds 3 and corresponding lower molds 2 on the vulcanizing machine, and there are gaps between adjacent sets;

[0042] Both the lower mold 2 and the upper mold 3 are provided with a placement cavity 21 for inserting the core rod and a molding cavity 22 for injecting molten particles. The upper mold 3 is provided with an injection port (not shown in the figure) that communicates with the molding cavity 22. The side of the base 1 is provided with an injection molding machine for heating plastic particles (not shown in the figure) and an injection tube (not shown in the figure) for connecting the injection port and the injection molding machine.

[0043] When the vulcanizing machine is running, the mandrel is placed in the placement cavity 21 on the lower mold 2 beforehand. Then, the hydraulic cylinder 51 is started to close the upper mold 3 and the lower mold 2. The molten particles in the injection molding machine are then injected into the molding cavity 22 through the injection tube. After injection molding, the vulcanizing process is carried out by heating and assembly to a certain temperature. Finally, the finished product is demolded after processing is completed.

[0044] Reference Figure 2 and Figure 3An extrusion block 6 is provided below the mandrel in the upper cavity 21 of the lower mold 2. Two extrusion blocks 6 are symmetrically arranged on opposite sides of the lower mold 2. A driving component 7 is fixed on the base 1 to drive the extrusion block 6 to reciprocate towards the upper mold 3. The driving component 7 is a servo electric cylinder 71 provided on the upper side of the base 1. The telescopic rod of the servo electric cylinder 71 is fixedly connected to the side of the extrusion block 6 away from the limiting groove 61.

[0045] The extrusion block 6 has a limiting groove 61 for inserting the outer periphery of the mandrel, and an elastic pad 62 is fixed on the inner wall of the limiting groove 61. The elastic pad 62 is provided with several anti-slip textures 621. When the finished product is demolded, the drive component 7 is activated to move the extrusion block 6 away from the base 1, so that both ends of the mandrel are simultaneously subjected to external force and ejected from the placement cavity 21 of the lower mold 2, reducing the possibility of uneven force during demolding causing damage or tearing of the umbrella skirt.

[0046] Reference Figure 2 A support plate 11 is slidably mounted on the base 1, and a servo electric cylinder 71 is fixed on the support plate 11. The sliding direction of the support plate 11 is perpendicular to the length direction of the mandrel. A drive source 12 is provided on the base 1 to drive the support plate 11 to slide back and forth. The drive source 12 is a first cylinder 121, which can move the extrusion block 6 away from the lower mold 2 when demolding is not required, thereby reducing the possible interference of the extrusion block 6 to the workers during the injection molding vulcanization process.

[0047] Reference Figure 4 , Figure 5 and Figure 6 The base 1 is provided with an adjustment component 8, which includes an air jet pipe 81 located on one side of the vertical side of the lower mold 2. The air jet pipe 81 is parallel to the length direction of the mandrel. The side of the extrusion block 6 is fixed with a support frame 63 for supporting the air jet pipe 81, thereby realizing the installation and fixation of the air jet pipe 81.

[0048] The jet pipe 81 has several jet ports 811 on its sides facing the upper and lower placement cavities 21. The jet pipe 81 is fixed with an air inlet 812 connected to an external pipe. Compressed gas can be injected into the jet port 811 through the air inlet 812, thereby performing simple cleaning on the upper mold 3 and lower mold 2 after demolding, reducing the possibility of impurities adhering to the placement cavity 21 and the molding cavity 22.

[0049] Reference Figure 4 and Figure 5 An inclined brace 64 for supporting the support frame 63 is fixed on the side of the extrusion block 6. The other end of the inclined brace 64 is fixedly connected to the bottom side of the support frame 63, so that the support frame 63 can be better supported by the inclined brace 64, thereby improving the support stability of the jet pipe 81 during application.

[0050] Reference Figure 5 and Figure 7 The support frame 63 is equipped with two rotating shafts 631 and a micro motor 632 that drives the rotating shafts 631 to rotate. A cleaning cotton 633 is fixed on the outer periphery of the rotating shafts 631. The two rotating shafts 631 are located diagonally below the jet pipe 81, respectively, and can move the cleaning cotton 633 into the placement cavity 21 of the upper mold 3 and the lower mold 2, thereby performing simple cleaning of the impurities adhering to the inner wall of the placement cavity 21.

[0051] Reference Figure 4 and Figure 5 The support frame 63 is also equipped with a cooling fan 65. The cooling fan 65 is a conventional fan with a small battery installed inside and driven by a small motor. After the upper mold 3 and the lower mold 2 are separated and before demolding, it can reduce the temperature of the umbrella skirt surface and make it cool better.

[0052] Reference Figure 8 A placement platform 4 is fixedly provided on the side of the lower mold 2, wherein the placement platform 4 is located in the gap between adjacent lower molds 2, and a placement notch 41 is provided on the placement platform 4 for inserting the air jet pipe 81. During the operation of the vulcanizing machine, the air jet pipe 81 can be moved to the placement notch 41 on the placement platform 4 for placement, reducing the possibility of deformation or arcing at the connection between the air jet pipe 81 and the extrusion block 6 due to long-term support.

[0053] Reference Figure 4 , Figure 5 and Figure 6 A water spray pipe 82 for spraying lubricating fluid is fixedly provided on the side of the jet pipe 81. The water spray pipe 82 has several water spray holes 821 on the side facing the placement cavity 21. The water spray pipe 82 is provided with a liquid inlet 822 connected to an external pipe. After the upper mold 3 and the lower mold 2 are separated and cleaned, the lubricating fluid can be sprayed into the corresponding molding cavity 22 through the water spray holes, reducing the possibility that the umbrella skirt will stick to the inner wall of the molding cavity 22 after injection molding and be difficult to demold.

[0054] The implementation principle of this application embodiment is as follows:

[0055] When the vulcanizing machine is running, the mandrel is placed in the placement cavity 21 on the lower mold 2 beforehand. Then, the hydraulic cylinder 51 is started to close the upper mold 3 and the lower mold 2. The molten particles in the injection molding machine are then injected into the molding cavity 22 through the injection tube. After injection molding, the vulcanizing process is carried out by heating and assembly to a certain temperature. Finally, the finished product is demolded after processing is completed.

[0056] When the finished product is demolded, the servo electric cylinder 71 and the first cylinder 121 work together to move the extrusion block 6 to the bottom of the mandrel. Then the servo electric cylinder 71 is activated to drive the extrusion block 6 to move away from the base 1, so that both ends of the mandrel are simultaneously subjected to external force and ejected from the placement cavity 21 of the lower mold 2. Finally, the finished product is removed from the two extrusion blocks 6 by the workers.

[0057] After demolding, the upper and lower molds 2 are cleaned sequentially through cleaning cotton 633 and air jet pipe 81. Finally, lubricant is sprayed into the molding cavity 22 inside the upper and lower molds 2 through water spray pipe 82 to reduce the possibility that the umbrella skirt will stick to the inner wall of the molding cavity 22 after subsequent injection molding and be difficult to demold.

[0058] After the air jet cleaning, cleaning cotton 633 cleaning, and water lubricant spraying are completed, the air jet pipe 81, support frame 63, etc. are moved along with the extrusion block 6 to the gap between the adjacent lower mold 2 and placed. At the same time, the air jet pipe 81, water spray pipe 82 and rotating shaft 631 are placed in the placement notch 41 on the placement table 4.

[0059] Unless otherwise defined, the terms or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar words used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "one," and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar words mean that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0060] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A vulcanizing machine, comprising a base (1) provided with a lower mold (2) and a heating assembly, an upper mold (3) located above the lower mold (2) and a power member (5) for driving the upper mold (3) to reciprocate towards the lower mold (2) are arranged on the base (1); the lower mold (2) and the upper mold (3) are both provided with a placement cavity (21) for placing a mandrel and a forming cavity (22) for injecting molten particles, the upper mold (3) is provided with an injection port in communication with the forming cavity (22), and the side surface of the base (1) is provided with an injection molding machine for heating plastic particles, an injection pipe for connecting the injection port and the injection molding machine; An extrusion block (6) is arranged below the placement cavity (21) of the lower mold (2), and two extrusion blocks (6) are symmetrically arranged on the opposite side surfaces of the lower mold (2); a driving member (7) for driving the extrusion block (6) to reciprocate towards the upper mold (3) is fixedly arranged on the base (1); the extrusion block (6) is provided with a limiting groove (61) for placing the outer periphery of the mandrel; characterized in that The driving member (7) is a servo electric cylinder (71) arranged on the side surface of the base (1), the telescopic rod of the servo electric cylinder (71) is fixedly connected with the side surface of the extrusion block (6) away from the limiting groove (61); a support plate (11) is slidably arranged on the base (1), the servo electric cylinder (71) is fixedly arranged on the support plate (11), the sliding direction of the support plate (11) is perpendicular to the length direction of the mandrel, and a driving source (12) for driving the support plate (11) to reciprocate is arranged on the base (1); An adjusting assembly (8) is arranged on the base (1), the adjusting assembly (8) comprises an air jet pipe (81) located on one side of the vertical side surface of the lower mold (2), a plurality of air jet ports (811) are arranged on the side surface of the air jet pipe (81) facing the placement cavity (21), and an air inlet (812) connected with an external pipeline is fixedly arranged on the air jet pipe (81); the air jet pipe (81) is parallel to the length direction of the mandrel, a support frame (63) for supporting the air jet pipe (81) is fixedly arranged on the side surface of the extrusion block (6); a placement table (4) is fixedly arranged on the side surface of the lower mold (2), and a placement gap (41) for placing the air jet pipe (81) is arranged on the placement table (4); A water jet pipe (82) for spraying lubricating liquid is fixedly arranged on the side surface of the support frame (63) and the support frame (63), a plurality of water jet holes (821) are arranged on the side surface of the water jet pipe (82) facing the placement cavity (21), and a liquid inlet (822) connected with an external pipeline is arranged on the water jet pipe (82); a rotating shaft (631) and a micro motor (632) for driving the rotating shaft (631) to rotate are arranged on the support frame (63), and cleaning cotton (633) is fixedly arranged on the outer periphery of the rotating shaft (631); a heat dissipation fan (65) is further arranged on the support frame (63). A diagonal support rod (64) for supporting the support frame (63) is fixedly arranged on the side surface of the extrusion block (6).

2. A vulcanizing machine according to claim 1, characterized in that ​ 3. The curing press according to claim 1, wherein An elastic pad (62) is fixed on the inner wall of the limiting groove (61), and a plurality of anti-skid lines (621) are arranged on the elastic pad (62).

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