Plate vulcanizing machine for rubber pad production

Abstract

The invention relates to the technical field of rubber production, and provides a press vulcanizer for rubber pad production, which comprises a vulcanizer body, the upper mold lifts relative to the vulcanizing machine body; the multiple middle molds are horizontally arranged in a sliding mode relative to the upper mold, and the multiple middle molds get close to or get away from one another after horizontally sliding. The lower mold is arranged on the vulcanizing machine body; the plurality of middle molds are close to each other and then form a vulcanizing space with the upper mold and the lower mold. By means of the technical scheme, the problems that in the prior art, a mold of a press vulcanizer is poor in universality, and the production cost is high when rubber pads of different specifications are produced are solved.

Description

Technical Field

[0001] The invention relates to the technical field of rubber production, and in particular to a flat vulcanizing machine for producing rubber pads. Background Art

[0002] After the bridge is built, it is subjected to various dynamic loads such as vehicle driving, wind, and earthquakes. The bridge rubber pad can effectively absorb and disperse the impact force generated by these loads, reduce the vibration impact on the main structure of the bridge, thereby extending the service life of the bridge and improving driving comfort and safety. Due to factors such as temperature changes and foundation settlement, the bridge will also produce certain displacement and deformation. The bridge rubber pad has good elasticity and deformation capacity, can adapt to these deformation requirements, and ensure the integrity of the bridge structure. Plate rubber bearings are a more common type of bridge rubber pads. They are made of multiple layers of rubber sheets and thin steel plates alternately stacked together, and are made into a whole through a vulcanization process. This structure enables the plate rubber bearing to withstand large loads in the vertical direction, and at the same time has a certain flexibility in the horizontal direction, which can effectively adapt to the rotation and horizontal displacement of the bridge. Common plate vulcanizers are usually equipped with vulcanization molds of fixed specifications. When rubber pads of different sizes need to be produced, the corresponding molds need to be replaced.

[0003] The market demand for rubber pads is showing a trend of diversification. Common molds have poor versatility. For the production of rubber pads of different specifications, the mold fixing method is relatively cumbersome when changing molds. At the same time, frequent mold opening also increases the production cost of enterprises. Summary of the invention

[0004] The invention provides a plate vulcanizing machine for producing rubber pads, which solves the problems of poor mold versatility of the plate vulcanizing machine in the prior art and high production cost when producing rubber pads of different specifications.

[0005] The technical solution of the present invention is as follows: A flat plate vulcanizing machine for producing rubber pads, comprising: Vulcanizing machine body; An upper mold, the upper mold is arranged to be lifted relative to the vulcanizer body; An intermediate mold, wherein there are multiple intermediate molds, and the multiple intermediate molds are arranged to slide horizontally relative to the upper mold, and the multiple intermediate molds move closer to or farther from each other after sliding horizontally; The lower mold is arranged on the vulcanizer body, and the plurality of intermediate molds are close to each other to form a vulcanization space with the upper mold and the lower mold.

[0006] Optionally, the upper mold comprises: A first vulcanizing plate, wherein the first vulcanizing plate is arranged to be lifted relative to the vulcanizing machine body; A support plate is arranged on the first vulcanization plate, and a plurality of the intermediate molds are horizontally slidably arranged on the support plate.

[0007] Optionally, the intermediate mold includes: A support rod, the support rod is horizontally slidably arranged on the support plate, A second vulcanized plate, wherein the second vulcanized plate is arranged at one end of the support rod.

[0008] Optionally, the two ends of the second vulcanized plate respectively have a sealing protrusion and a sealing groove, the sealing protrusion is used to clamp with the sealing groove of the adjacent second vulcanized plate, and after multiple second vulcanized plates slide close to each other, they are connected end to end in sequence, and the sealing protrusion is used to form a labyrinth-type sealing structure with the sealing groove.

[0009] Optionally, it also includes: A sliding sleeve, the sliding sleeve is vertically slidably arranged on the vulcanizer body, the inner wall of the sliding sleeve has a guiding inclined surface, the guiding inclined surface is used to abut against an end of the support rod away from the second vulcanization plate, and the sliding sleeve drives the multiple support rods to slide synchronously after sliding; A first elastic member, wherein the first elastic member is sleeved on the support rod, and two ends of the first elastic member act on the second vulcanized plate and the support plate respectively, and the first elastic member is used to provide a force for bringing the plurality of second vulcanized plates closer to each other.

[0010] Optionally, it also includes: A mounting sleeve, the mounting sleeve is detachably mounted on one end of the support rod, and a mounting space is formed between the mounting sleeve and the support rod; A contact ball, one end of which is rotatably arranged in the installation space, and the other end of which extends out of the installation space, and the support rod abuts against the guide inclined surface through the contact ball.

[0011] Optionally, it also includes: A flexible connector, wherein two ends of the flexible connector are respectively connected to the first vulcanized plate and the sliding sleeve.

[0012] Optionally, the vulcanizer body has a vulcanization zone and a feeding zone, the lower mold is slidably arranged between the vulcanization zone and the feeding zone, the lower mold is provided with a first vent hole, and further comprises: A push rod is slidably arranged relative to the lower mold, and the push rod blocks or cancels the blocking of the first vent hole after sliding.

[0013] Optionally, after the plurality of second vulcanized plates are brought close to each other, an annular air cavity is formed between the second vulcanized plates and the support plate, and a second vent hole is further provided on the lower mold, further comprising: A vent cylinder, wherein the vent cylinder is arranged on the vulcanizer body, and after the lower mold slides into the vulcanization zone and is molded with the upper mold and the plurality of intermediate molds, the two ends of the second vent hole are respectively connected to the annular air cavity and the vent cylinder; After the push rod stops blocking the first vent hole, the first vent hole is communicated with the vent cylinder.

[0014] Optionally, one upper mold and a plurality of middle molds form a vulcanized part, an array of the plurality of vulcanized parts is arranged on the vulcanizer body, there are a plurality of first vent holes, and a plurality of vulcanized parts are molded together with the lower mold to form a plurality of vulcanization spaces.

[0015] The working principle and beneficial effects of the present invention are: In the present invention, the mold of the vulcanizer is set to three parts of a split type, and in addition to the upper mold and the lower mold, it also includes multiple horizontal sliding molds. After the multiple horizontal sliding middle molds are close to each other, they can be self-centered. Whether it is through manual loading or mechanical loading, when the rubber pad to be vulcanized is placed on the lower mold, it is not necessary to place the rubber pad in a precise position. After the multiple middle molds are close to each other, the rubber pad can be pushed to the center of the multiple middle molds by themselves, which increases the fault tolerance of loading. When unloading, the multiple middle molds are away from each other, and the rubber pad can be completely exposed while being separated from the rubber pad, which is convenient to operate and can greatly improve the loading efficiency and unloading efficiency during vulcanization. When vulcanizing rubber pads of different sizes, the upper mold and the lower mold do not need to be replaced, and only the middle mold needs to be adjusted accordingly. The size of the vulcanization space can be flexibly adjusted, and the production needs of rubber pads of different sizes can be conveniently and quickly adapted. There is no need to frequently replace the entire mold like a traditional flat vulcanizer, which greatly improves production efficiency, reduces mold replacement costs and equipment downtime caused by mold replacement, and reduces mold inventory.

[0016] The working principle of the present invention is that during the production process of rubber pads, the vulcanizer body provides basic support and power source for the entire equipment. The upper mold achieves precise lifting and lowering movement through a lifting device such as a hydraulic cylinder equipped with the vulcanizer body. Multiple intermediate molds are arranged on the vulcanizer body or a supporting structure associated with the upper mold, so that they can slide horizontally relative to the upper mold. The lower mold is firmly fixed on the workbench of the vulcanizer body. When it is necessary to produce rubber pads of specific sizes, multiple intermediate molds slide in the horizontal direction according to the size requirements of the rubber pads, approaching or moving away from each other, until the multiple intermediate molds approach each other and enclose together with the upper mold and the lower mold to form a vulcanization space adapted to the size of the rubber pad. When it is necessary to produce rubber pads of different sizes according to production needs, it is only necessary to replace the intermediate mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial structural cross-sectional view of the present invention; Figure 3 It is a schematic diagram of the local structure of the present invention; Figure 4 Another partial structural cross-sectional view of the present invention; Figure 5 It is another partial structural schematic diagram of the present invention.

[0019] In the figure: 1. vulcanizer body, 101. vulcanizing space, 11. vulcanizing part, 102. vulcanizing area, 103. loading area, 2. upper mold, 201. annular air cavity, 21. first vulcanizing plate, 22. support plate, 3. middle mold, 31. support rod, 32. second vulcanizing plate, 321. sealing protrusion, 322. sealing groove, 33. sliding sleeve, 331. guide slope, 4. lower mold, 401. first vent hole, 402. second vent hole, 5. first elastic member, 6. mounting sleeve, 7. contact ball, 8. flexible connector, 9. ejector rod, 10. vent cylinder. DETAILED DESCRIPTION In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0020] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0021] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] Reference Figure 1~Figure 5 , which is the first embodiment of the present invention, proposes a flat vulcanizer for rubber pad production, including a vulcanizer body 1; an upper mold 2 is set to rise and fall relative to the vulcanizer body 1; there are multiple middle molds 3, and the multiple middle molds 3 are set to slide horizontally relative to the upper mold 2, and the multiple middle molds 3 move closer to or away from each other after sliding horizontally; the lower mold 4 is set on the vulcanizer body 1, and the multiple middle molds 3 move closer to each other to form a vulcanization space 101 with the upper mold 2 and the lower mold 4. The main bodies of the upper mold 2 and the lower mold 4 are both flat plate structures, and the main body of the middle mold 3 can be selected according to the shape of the rubber pad. When the rubber pad is in the shape of a cuboid, the main body of the middle mold 3 can be a long strip; when the rubber pad is cylindrical, the main body of the middle mold 3 can be arc-shaped.

[0024] In the present invention, the mold of the vulcanizer is set to be divided into three parts, including a plurality of horizontally sliding intermediate molds 3 in addition to the upper mold 2 and the lower mold 4. The plurality of horizontally sliding intermediate molds 3 can be self-centered after being close to each other. Whether it is manually loaded or mechanically loaded, when the rubber pad to be vulcanized is placed on the lower mold 4, it is not necessary to place the rubber pad in a precise position. The plurality of intermediate molds 3 can push the rubber pad to the center of the plurality of intermediate molds 3 by themselves after being close to each other, thereby increasing the error tolerance of loading. When unloading, the plurality of intermediate molds 3 are separated from each other, and the rubber pad can be completely exposed while being separated from the rubber pad, which is convenient for operation and can greatly improve the loading efficiency and unloading efficiency during vulcanization. When vulcanizing rubber pads of different sizes, the upper mold 2 and the lower mold 4 do not need to be replaced, and only the middle mold 3 needs to be adjusted accordingly. The size of the vulcanization space 101 can be flexibly adjusted to quickly and conveniently adapt to the production needs of rubber pads of different sizes. There is no need to frequently replace the entire mold like a traditional flat vulcanizer, which greatly improves production efficiency, reduces mold replacement costs and equipment downtime caused by mold replacement, and reduces mold inventory.

[0025] The working principle of the present invention is that during the production of rubber pads, the vulcanizer body 1 provides basic support and power source for the entire equipment. The upper mold 2 realizes precise lifting and lowering movement through the lifting device such as hydraulic cylinder equipped by the vulcanizer body 1. Multiple intermediate molds 3 are arranged on the vulcanizer body 1 or on a supporting structure associated with the upper mold 2, so that they can slide horizontally relative to the upper mold 2. The lower mold 4 is firmly fixed on the workbench of the vulcanizer body 1. When it is necessary to produce rubber pads of a specific size, multiple intermediate molds 3 slide in the horizontal direction, approach or move away from each other according to the size requirements of the rubber pads, until the multiple intermediate molds 3 approach each other and enclose together with the upper mold 2 and the lower mold 4 to form a vulcanization space 101 that matches the size of the rubber pad. When it is necessary to produce rubber pads of different sizes according to production needs, it is only necessary to replace the intermediate mold 3.

[0026] Furthermore, the upper mold 2 includes a first vulcanization plate 21 , which is arranged to rise and fall relative to the vulcanizer body 1 ; a support plate 22 is arranged on the first vulcanization plate 21 , and a plurality of intermediate molds 3 are horizontally slidably arranged on the support plate 22 .

[0027] In this embodiment, the first vulcanization plate 21 of the upper mold 2 can be connected to the vulcanizer body 1 through a lifting drive component such as a screw lifter or a chain lifter connected to the top of the vulcanizer body 1, and can accurately achieve lifting and lowering movement relative to the vulcanizer body 1 under the action of the control signal. The support plate 22 is installed on the lower surface of the first vulcanization plate 21 by welding, bolt connection or other reliable fixing methods. The support plate 22 provides support for the middle mold 3 to ensure the stability and smoothness of the middle mold 3 during horizontal sliding. During the production process, when the lifting device of the vulcanizer body 1 drives the first vulcanization plate 21 to descend, the support plate 22 also descends, driving the middle mold 3 to approach the lower mold 4.

[0028] The support plate 22 is arranged on the first vulcanization plate 21, providing a unified and stable installation base for the multiple intermediate molds 3, so that the horizontal sliding movement of the intermediate mold 3 and the lifting movement of the upper mold 2 can work better together. While ensuring the integrity of the mold structure, it is beneficial to accurately control the relative position relationship of the mold during the vulcanization process, and improve the vulcanization quality and dimensional accuracy of the rubber pad product.

[0029] Furthermore, the middle mold 3 includes a support rod 31 , which is horizontally slidably disposed on the support plate 22 , and a second vulcanization plate 32 is disposed at one end of the support rod 31 .

[0030] In this embodiment, one end of the support rod 31 cooperates with the guide rail on the support plate 22 through a shaft sleeve or a slider structure to achieve horizontal sliding. The second vulcanized plate 32 is firmly installed on the other end of the support rod 31 by welding, riveting or bolting. The support rod 31 is pushed to slide horizontally on the support plate 22 by an external driving device such as a motor driving a lead screw or a pneumatic push cylinder, thereby driving the second vulcanized plate 32 to move, thereby changing the relative position relationship between the multiple intermediate molds 3.

[0031] This structural design makes the horizontal sliding movement of the middle mold 3 more flexible and reliable, and the driving force can be effectively transmitted to the second vulcanization plate 32 through the support rod 31, so as to achieve precise adjustment of the vulcanization space 101. At the same time, it is convenient for the installation, disassembly and maintenance of the middle mold 3. When a certain middle mold 3 fails or needs to be replaced, it can be operated quickly, reducing the equipment maintenance time and improving the production continuity. When the size of the vulcanization space 101 needs to be adjusted as needed, it is also convenient to replace the middle mold 3, and the flexibility is better.

[0032] Furthermore, both ends of the second vulcanized plate 32 respectively have a sealing protrusion 321 and a sealing groove 322. The sealing protrusion 321 is used to engage with the sealing groove 322 of the adjacent second vulcanized plate 32. After multiple second vulcanized plates 32 slide close to each other, they are connected end to end in sequence. The sealing protrusion 321 is used to form a labyrinth-type sealing structure with the sealing groove 322.

[0033] In this embodiment, in the process of the second vulcanization plates 32 of the plurality of intermediate molds 3 approaching each other, when the adjacent second vulcanization plates 32 approach each other, the sealing protrusion 321 at one end of a second vulcanization plate 32 is accurately inserted into the sealing groove 322 of the adjacent second vulcanization plate 32, forming a labyrinth seal structure. During the vulcanization process of the rubber pad, when the vulcanization space 101 is filled with a high-temperature and high-pressure vulcanization medium such as steam or hot air, the labyrinth seal structure can effectively prevent the vulcanization medium from leaking from the gap between the adjacent second vulcanization plates 32, ensuring that the pressure and temperature in the vulcanization space 101 are uniform and stable, so that the rubber pad is vulcanized uniformly. When electric heating is used during vulcanization, the cooperation of the sealing protrusion 321 and the sealing groove 322 can also ensure the pressure stability of the sealing space, thereby improving the quality of the vulcanization of the rubber pad. The labyrinth seal structure has good sealing performance, can effectively prevent the leakage of the vulcanization medium under complex vulcanization conditions such as high temperature, high pressure, rubber flow, etc., ensure the stability and reliability of the vulcanization process, and improve the production efficiency and the overall reliability of the equipment.

[0034] Furthermore, it also includes a sliding sleeve 33, which is vertically slidably arranged on the vulcanizer body 1. The inner wall of the sliding sleeve 33 has a guiding slope 331, and the guiding slope 331 is used to abut against the end of the support rod 31 away from the second vulcanization plate 32. After the sliding sleeve 33 slides, it drives multiple support rods 31 to slide synchronously; the first elastic member 5 is sleeved on the support rod 31, and its two ends act on the second vulcanization plate 32 and the support plate 22 respectively. The first elastic member 5 is used to provide a force for the multiple second vulcanization plates 32 to approach each other.

[0035] In this embodiment, the sliding sleeve 33 cooperates with the guide sleeve on the vulcanizer body 1 through the guide columns on both sides to achieve vertical sliding installation. The guide slope 331 is set on the inner wall of the sliding sleeve 33, and the upper end of the guide slope 331 is closer to the center of the sliding sleeve 33 than the lower end. When the sliding sleeve 33 slides vertically under the action of an external driving device such as a hydraulic cylinder or an electric push rod, the guide slope 331 contacts the end of the support rod 31 away from the second vulcanization plate 32 and generates thrust, pushing the support rod 31 to slide horizontally on the support plate 22. The first elastic member 5 is set on the support rod 31 like a spring, and its two ends are in close contact with the second vulcanization plate 32 and the support plate 22 respectively, providing elastic force for the multiple second vulcanization plates 32 to move away from each other. After the rubber pad is placed on the lower mold 4, the sliding sleeve 33 slides downward relative to the upper mold 2 to push the support rod 31 to slide, the first elastic member 3 is stretched, and the plurality of second vulcanization plates 32 are close to each other to form a vulcanization space 101 together with the upper mold 2 and the lower mold 4, and the rubber pad is located in the vulcanization space 101. After the vulcanization is completed, when the sliding sleeve 33 slides upward relative to the upper mold 2, the thrust of the guide slope 331 on the support rod 31 is reduced, and under the action of the first elastic member 5, the plurality of second vulcanization plates 32 are away from each other.

[0036] The design of the sliding sleeve 33 and the guiding slope 331 provides a simple and effective way to realize the synchronous horizontal sliding control of multiple intermediate molds 3, reducing the number and complexity of the driving device and reducing the equipment cost. The setting of the first elastic member 5 can not only assist the reset and initial position adjustment of the intermediate mold 3, but also buffer the impact force of the multiple second vulcanization plates 32 when they approach each other to a certain extent, protect the mold and equipment structure, improve the stability and service life of the equipment, and help to improve the uniform pressure effect of the mold on the rubber material during the vulcanization process, thereby improving the quality of the rubber pad product.

[0037] Furthermore, it also includes a mounting sleeve 6, which is detachably arranged at one end of the support rod 31, and an mounting space is formed between the mounting sleeve 6 and the support rod 31; one end of the contact ball 7 is rotatably arranged in the mounting space, and the other end of the contact ball 7 extends out of the mounting space, and the support rod 31 abuts against the guide inclined surface 331 through the contact ball 7.

[0038] In this embodiment, the mounting sleeve 6 is detachably mounted on one end of the support rod 31 by means of a threaded connection or a snap-fit ​​structure, and a suitable mounting space is reserved between the mounting sleeve 6 and the support rod 31. The contact ball 7 can rotate freely in the mounting space. During the vertical sliding process of the sliding sleeve 33, one end of the contact ball 7 contacts the guide slope 331. Due to the rotatable characteristics of the contact ball 7, the friction resistance between the support rod 31 and the guide slope 331 can be effectively reduced, making the horizontal sliding of the support rod 31 smoother. During long-term use, if the contact ball 7 is worn or damaged, the mounting sleeve 6 can be easily removed and the contact ball 7 can be replaced without large-scale disassembly and repair of the entire mold structure.

[0039] The application of the contact ball 7 significantly reduces the friction resistance of the middle mold 3 during the movement, improves the flexibility and response speed of the mold movement, and reduces energy loss and equipment wear. At the same time, the detachable installation sleeve 6 design facilitates the replacement and maintenance of the contact ball 7, further improves the maintainability and operational reliability of the equipment, reduces the long-term use cost of the equipment, and ensures the efficient and stable production process of the rubber pad.

[0040] Furthermore, a flexible connector 8 is included, and two ends of the flexible connector 8 are respectively connected to the first vulcanized plate 21 and the sliding sleeve 33 .

[0041] In this embodiment, the flexible connector 8 can be a spring, and its two ends are firmly connected to the first vulcanized plate 21 and the sliding sleeve 33 by means of a connecting buckle or welding. While connecting the first vulcanized plate 21 and the sliding sleeve 33 together, it can also ensure that the first vulcanized plate 21 and the sliding sleeve 33 can slide relative to each other. During the operation of the vulcanizer, when the lifting device of the vulcanizer body 1 drives the sliding sleeve 33 to descend, the flexible connector 8 carries the first vulcanized plate 21 to perform a synchronous vertical sliding movement. An intermediate mold 3 is installed below the first vulcanized plate 21, and the intermediate mold 3 cannot continue to descend after contacting the lower mold 4. At this time, as the sliding sleeve 33 continues to descend, the flexible connector 8 shrinks after being compressed, and the sliding sleeve 33 slides downward relative to the first vulcanized plate 21. At this time, the guide inclined surface 331 pushes the support rod 31 to slide horizontally, so that the multiple second vulcanized plates 32 approach each other and completely surround the rubber pad. After the rubber pad is vulcanized, the sliding sleeve 33 rises, and the flexible connector 8 pulls the upper mold 2 up, so that the middle mold 3 returns to its initial position to prepare for the next vulcanization.

[0042] The flexible connector 8 realizes the motion association between the upper mold 2 and the sliding sleeve 33, making the overall motion control of the equipment more coordinated and automated. By rationally designing the length, material and structure of the flexible connector 8, it is possible to meet the motion requirements under different working conditions while ensuring the accuracy of motion transmission, avoiding motion interference or jamming that may be caused by rigid connection, improving the operating stability and reliability of the equipment, reducing the probability of equipment failure, and helping to improve the production efficiency and product quality of rubber pads.

[0043] Further, the vulcanizer body 1 has a vulcanization zone 102 and a feeding zone 103, the lower mold 4 is slidably arranged between the vulcanization zone 102 and the feeding zone 103, the lower mold 4 is provided with a first vent hole 401, and further includes: The push rod 9 is slidably arranged relative to the lower mold 4, and the push rod 9 blocks or cancels the blocking of the first vent hole 401 after sliding.

[0044] In this embodiment, the vulcanizer body 1 is provided with a separated vulcanization zone 102 and a feeding zone 103. The lower mold 4 cooperates with the guide rail provided in the vulcanizer body 1 through the slider at the bottom to achieve precise sliding between the vulcanization zone 102 and the feeding zone 103. The push rod 9 is realized by a push rod driving device such as a cylinder or a hydraulic cylinder installed on the vulcanizer body 1 to slide relative to the lower mold 4. In the rubber pad feeding stage, the lower mold 4 is located in the feeding zone 103. When vulcanization is required, the lower mold 4 slides to the vulcanization zone 102. At this time, the push rod 9 retracts under the action of the driving device, and the first vent 401 is in an open state to facilitate the subsequent ventilation operation of the vulcanization medium. After the ventilation is completed, the push rod 9 extends and blocks the first vent to ensure the sealing and integrity of the vulcanization space 101. After the vulcanization is completed, the push rod 9 retracts and the first vent hole 401 is opened again. At this time, the first vent hole 401 can be ventilated to assist the cooling of the rubber pad and the separation of the rubber pad from the mold. After the lower mold 4 slides back to the loading area 103, the vulcanized rubber pad can be removed and the loading operation can continue. A plug is provided on the lower mold 4. After the lower mold 4 slides to the vulcanization area 102, the electrical connection with the vulcanizer body is achieved through the plug connection, so as to facilitate the heating of the mold. After the push rod 9 withdraws from the first vent hole 401, it will not affect the sliding of the lower mold 4. The first vent hole 401 can be designed in the form of a stepped hole. When the push rod 9 blocks the first vent hole 401, the lower mold 4 can have a tendency to move upward. After the mold is closed, the upper mold 2 and the middle mold 3 are pressed downward to further improve the air tightness of the vulcanization space 101.

[0045] The division of the vulcanization zone 102 and the feeding zone 103 and the sliding design of the lower mold 4 realize the effective separation of the feeding and vulcanization processes in the rubber pad production process, and improve the production efficiency and the degree of automation of the equipment. The controllable blocking and opening function of the ejector 9 on the first vent 401 ensures that the state of the vent meets the requirements at different production stages, prevents the leakage of the vulcanization medium, and ensures the smooth progress of the vulcanization process and the stability of the quality of the rubber pad product.

[0046] Furthermore, after the multiple second vulcanization plates 32 are close to each other, an annular air cavity 201 is formed between the second vulcanization plates 32 and the support plate 22, and a second air vent 402 is also opened on the lower mold 4, which also includes a vent cylinder 10, and the vent cylinder 10 is arranged on the vulcanizer body 1. After the lower mold 4 slides into the vulcanization zone 102 and is molded with the upper mold 2 and multiple intermediate molds 3, the two ends of the second air vent 402 are respectively connected to the annular air cavity 201 and the vent cylinder 10; after the push rod 9 cancels the blocking of the first air hole 401, the first air hole 401 is connected to the vent cylinder 10.

[0047] In this embodiment, when the plurality of second vulcanization plates 32 slide horizontally and approach each other, an annular air cavity 201 is naturally formed between the support plate 22. The vent 10 is mounted on the vulcanizer body 1 and is connected to the external cooling air source and the hot air generator through a pipeline. During the vulcanization process, when the lower mold 4 slides into the vulcanization zone 102 and completes the mold closing action with the upper mold 2 and the plurality of intermediate molds 3, the two ends of the second vent 402 are precisely connected to the annular air cavity 201 and the vent 10, respectively, and the ejector 9 blocks the first vent 401, and hot air can enter the annular air cavity 201 through the second vent 402, so as to achieve uniform heat preservation of the vulcanization space 101. After the vulcanization is completed, the ejector 9 no longer blocks the first vent 401, and the cooling gas enters the vulcanization space 101 and the annular air cavity 201 through the first vent 401 and the second vent 402, respectively, to assist in the demoulding and cooling of the rubber pad.

[0048] Furthermore, an upper mold 2 and multiple middle molds 3 form a vulcanized part 11, and the multiple vulcanized parts 11 are arranged in an array on the vulcanizer body 1. There are multiple first vents 401, and multiple vulcanized parts 11 are molded with the lower mold 4 to form multiple vulcanization spaces 101.

[0049] In this embodiment, on the workbench of the vulcanizer body 1, an upper mold 2 and a plurality of intermediate molds 3 form a vulcanized part 11, and the plurality of vulcanized parts 11 are arranged in a predetermined array such as a rectangular array or a circular array. A first vent hole 401 is provided on the lower mold 4 at a position corresponding to each vulcanized part 11. During the production of rubber pads, after the plurality of vulcanized parts 11 are molded with the lower mold 4, each vulcanized part 11 forms an independent vulcanization space 101 with the lower mold 4. By controlling the coordinated work of the vent 10 and the ejector 9, the rubber pads in the plurality of vulcanization spaces 101 can be vulcanized at the same time. For example, in the large-scale production of rubber pads, this array-type design of vulcanized parts 11 can make full use of the workbench area of ​​the vulcanizer body 1, produce a plurality of rubber pads at one time, significantly improve production efficiency, and reduce the production cost of a unit rubber pad. At the same time, the independent vulcanization space 101 and corresponding vent hole design of each vulcanized part 11 ensure that each rubber pad can be evenly vulcanized during the mass production process, and the product quality is stable and reliable, which is conducive to meeting the market demand for large-scale rubber pad production and improving the company's market competitiveness.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A flat plate vulcanizing machine for rubber pad production, characterized in that: include: Vulcanizing machine body (1); An upper mold (2), the upper mold (2) being arranged to be lifted relative to the vulcanizer body (1); An intermediate mold (3), wherein the intermediate mold (3) comprises a plurality of intermediate molds (3), the plurality of intermediate molds (3) being arranged to slide horizontally relative to the upper mold (2), and the plurality of intermediate molds (3) moving closer to or farther from each other after sliding horizontally; A lower mold (4) is arranged on the vulcanizer body (1); a plurality of the intermediate molds (3) are brought close to each other to form a vulcanization space (101) with the upper mold (2) and the lower mold (4).

2. A flat plate vulcanizing machine for producing rubber pads according to claim 1, characterized in that: The upper mold (2) comprises: A first vulcanizing plate (21), the first vulcanizing plate (21) being arranged to be lifted relative to the vulcanizing machine body (1); A support plate (22), wherein the support plate (22) is arranged on the first vulcanization plate (21), and the plurality of intermediate molds (3) are all arranged on the support plate (22) in a horizontally slidable manner.

3. A flat plate vulcanizing machine for producing rubber pads according to claim 2, characterized in that: The intermediate mold (3) comprises: a support rod (31), the support rod (31) being horizontally slidably disposed on the support plate (22), A second vulcanized plate (32), wherein the second vulcanized plate (32) is arranged at one end of the support rod (31).

4. A flat plate vulcanizing machine for producing rubber pads according to claim 3, characterized in that: The second vulcanized plate (32) has a sealing protrusion (321) and a sealing groove (322) at both ends, respectively; the sealing protrusion (321) is used to engage with the sealing groove (322) of an adjacent second vulcanized plate (32); after a plurality of second vulcanized plates (32) slide close to each other, they are connected end to end in sequence; the sealing protrusion (321) is used to form a labyrinth-type sealing structure with the sealing groove (322).

5. A flat plate vulcanizing machine for producing rubber pads according to claim 3, characterized in that: Also includes: A sliding sleeve (33), the sliding sleeve (33) being vertically slidably disposed on the vulcanizer body (1), the inner wall of the sliding sleeve (33) having a guiding inclined surface (331), the guiding inclined surface (331) being used to abut against an end of the support rod (31) away from the second vulcanizing plate (32), and the sliding sleeve (33) driving the plurality of support rods (31) to slide synchronously after sliding; A first elastic member (5), the first elastic member (5) is sleeved on the support rod (31), and two ends of the first elastic member (5) act on the second vulcanized plate (32) and the support plate (22) respectively, and the first elastic member (5) is used to provide a force for bringing the plurality of second vulcanized plates (32) closer to each other.

6. A flat plate vulcanizing machine for producing rubber pads according to claim 5, characterized in that: Also includes: a mounting sleeve (6), the mounting sleeve (6) being detachably arranged at one end of the support rod (31), and forming a mounting space between the mounting sleeve (6) and the support rod (31); A contact ball (7), one end of the contact ball (7) being rotatably disposed in the installation space, the other end of the contact ball (7) extending out of the installation space, and the support rod (31) being in contact with the guide inclined surface (331) via the contact ball (7).

7. A flat plate vulcanizing machine for producing rubber pads according to claim 5, characterized in that: Also includes: A flexible connecting member (8), wherein two ends of the flexible connecting member (8) are respectively connected to the first vulcanized plate (21) and the sliding sleeve (33).

8. A flat plate vulcanizing machine for producing rubber pads according to claim 3, characterized in that: The vulcanizer body (1) comprises a vulcanization zone (102) and a feeding zone (103), the lower mold (4) is slidably arranged between the vulcanization zone (102) and the feeding zone (103), the lower mold (4) is provided with a first vent hole (401), and further comprises: A push rod (9), the push rod (9) being slidably arranged relative to the lower mold (4), and the push rod (9) blocking or unblocking the first vent hole (401) after sliding.

9. A flat plate vulcanizing machine for producing rubber pads according to claim 8, characterized in that: After the plurality of second vulcanized plates (32) are brought close to each other, an annular air cavity (201) is formed between the second vulcanized plates (32) and the support plate (22), and a second vent hole (402) is also provided on the lower mold (4), further comprising: a vent cylinder (10), wherein the vent cylinder (10) is arranged on the vulcanizer body (1), and after the lower mold (4) slides into the vulcanization zone (102) and is molded together with the upper mold (2) and the plurality of intermediate molds (3), the two ends of the second vent hole (402) are respectively connected to the annular air cavity (201) and the vent cylinder (10); After the push rod (9) stops blocking the first ventilation hole (401), the first ventilation hole (401) is communicated with the ventilation cylinder (10).

10. A flat plate vulcanizing machine for producing rubber pads according to claim 9, characterized in that: One upper mold (2) and a plurality of intermediate molds (3) form a vulcanized component (11); the plurality of vulcanized components (11) are arranged in an array on the vulcanizer body (1); the first vent holes (401) are provided in plurality; and the plurality of vulcanized components (11) are molded together with the lower mold (4) to form a plurality of vulcanization spaces (101).

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