A flat vulcanizing machine for producing rubber pads

Abstract

The present application relates to the technical field of rubber production, and proposes a flat vulcanizing machine for rubber pad production, which comprises a vulcanizing machine body, an upper mold arranged opposite the vulcanizing machine body and lifted, a plurality of intermediate molds, the plurality of intermediate molds being arranged opposite the upper mold and horizontally sliding, the plurality of intermediate molds being close to or away from each other after horizontal sliding, a lower mold arranged on the vulcanizing machine body, and the plurality of intermediate molds forming a vulcanizing space with the upper mold and the lower mold after being close to each other. Through the above technical scheme, the problem of poor mold versatility of the flat vulcanizing machine in the prior art and high production cost when producing rubber pads of different specifications is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rubber production, in particular to a flat vulcanizing machine for rubber pad production. BACKGROUND

[0002] After the bridge is built, it bears various dynamic loads such as vehicle driving, wind force, earthquake, etc. 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 prolonging the service life of the bridge and improving the comfort and safety of driving. Due to factors such as temperature change and foundation settlement, the bridge will also produce certain displacement and deformation. The bridge rubber pad has good elasticity and deformation ability, which can adapt to these deformation requirements and ensure the integrity of the bridge structure. The plate type rubber support is a common bridge rubber pad, which is composed of multiple layers of rubber sheets and thin steel plates alternately stacked, and becomes a whole through the vulcanization process. This structure makes the plate type rubber support able to bear large vertical load, 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. The common flat vulcanizing machine is usually equipped with vulcanizing molds of fixed specifications, and when different sizes of rubber pads need to be produced, the corresponding molds need to be replaced.

[0003] The market demand for the size of rubber pads shows a diversification trend. The common mold has poor versatility, and when producing rubber pads of different specifications, the fixed mode of the mold is more cumbersome, and frequent mold opening also increases the production cost of enterprises. SUMMARY

[0004] The present application provides a flat vulcanizing machine for rubber pad production, which solves the problem of poor mold versatility of the flat vulcanizing machine in the prior art and high production cost when producing rubber pads of different specifications.

[0005] The technical scheme of the present application is as follows:

[0006] A flat vulcanizing machine for rubber pad production, comprising:

[0007] a vulcanizing machine body;

[0008] an upper mold, which is arranged to be lifted relative to the vulcanizing machine body;

[0009] a plurality of intermediate molds, which are arranged to slide horizontally relative to the upper mold, and which are arranged to move closer to or away from each other after horizontal sliding;

[0010] a lower mold, which is arranged on the vulcanizing machine body, and which forms a vulcanization space with the upper mold and the lower mold after the plurality of intermediate molds move closer to each other.

[0011] Optionally, the upper mold comprises:

[0012] a first vulcanizing plate, the first vulcanizing plate being arranged to rise and fall relative to the vulcanizing machine body;

[0013] A support plate is provided on the first vulcanization plate, and the plurality of intermediate molds are all horizontally slidably provided on the support plate.

[0014] Optionally, the intermediate mold includes:

[0015] A support rod is horizontally slidably arranged on the support plate.

[0016] A second vulcanized plate is provided at one end of the support rod.

[0017] Optionally, the two ends of the second vulcanized plate respectively have a sealing protrusion and a sealing groove, and the sealing protrusion is used to engage with the sealing groove of the adjacent second vulcanized plate. After multiple second vulcanized plates slide close to each other, the end to end are connected in sequence, and the sealing protrusion is used to form a labyrinth-type sealing structure with the sealing groove.

[0018] Optionally, it also includes:

[0019] A sliding sleeve is vertically slidably disposed on the vulcanizer body, and an inner wall of the sliding sleeve has a guide slope, the guide slope is used to abut against an end of the support rod away from the second vulcanization plate, and after the sliding sleeve slides, it drives the multiple support rods to slide synchronously;

[0020] A first elastic member is sleeved on the support rod, with two ends acting on the second vulcanized plate and the support plate respectively, and the first elastic member is used to provide a force for the plurality of second vulcanized plates to approach each other.

[0021] Optionally, it also includes:

[0022] A mounting sleeve, the mounting sleeve being detachably mounted on one end of the support rod, with a mounting space formed between the mounting sleeve and the support rod;

[0023] 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, wherein the support rod abuts against the guide inclined surface through the contact ball.

[0024] Optionally, it also includes:

[0025] A flexible connector, with two ends of the flexible connector respectively connected to the first vulcanized plate and the sliding sleeve.

[0026] Optionally, the vulcanizer body has a vulcanization zone and a loading zone, the lower mold is slidably arranged between the vulcanization zone and the loading zone, the lower mold is provided with a first vent hole, and further comprises:

[0027] A push rod is slidably arranged relative to the lower mold, and the push rod blocks or unblocks the first vent hole after sliding.

[0028] 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:

[0029] a vent cylinder, the vent cylinder being arranged on the vulcanizer body; after the lower mold slides into the vulcanization zone and is clamped 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;

[0030] After the push rod stops blocking the first vent hole, the first vent hole is communicated with the vent cylinder.

[0031] Optionally, one upper mold and multiple middle molds form a vulcanized part, and the multiple vulcanized parts are arrayed on the vulcanizer body. There are multiple first vents, and multiple vulcanized parts form multiple vulcanization spaces after being combined with the lower mold.

[0032] The working principle and beneficial effects of the present invention are:

[0033] In the present invention, the mold of the vulcanizer is configured as a three-part, split mold. In addition to the upper mold and lower mold, it also includes multiple horizontally sliding intermediate molds. The multiple horizontally sliding intermediate molds can align themselves when they are brought close to each other. Whether loading by hand or mechanical equipment, 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. The multiple intermediate molds can automatically push the rubber pad to the center of the multiple intermediate molds when they are brought close to each other, increasing the error tolerance of loading. When unloading, the multiple intermediate molds move away from each other, separating from the rubber pad while fully exposing the rubber pad, facilitating operation and significantly improving loading and unloading efficiency during vulcanization. When vulcanizing rubber pads of different sizes, the upper mold and lower mold do not need to be replaced. Only the intermediate mold needs to be adjusted accordingly. The size of the vulcanization space can be flexibly adjusted to quickly and easily meet the production needs of rubber pads of different sizes. There is no need to frequently replace the entire mold as in traditional flat-plate vulcanizers. This greatly improves production efficiency, reduces mold replacement costs and equipment downtime caused by mold replacement, and reduces mold inventory.

[0034] The working principle of the present invention is that during the rubber pad production process, 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 on the vulcanizer body. Multiple intermediate molds are arranged on the vulcanizer body or a support 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 a specific size, multiple intermediate molds slide in the horizontal direction, approaching or moving away from each other according to the size requirements of the rubber pad, 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

[0035] The preferred embodiments 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.

[0036] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 It is a partial structural cross-sectional view of the present invention;

[0038] Figure 3 It is a schematic diagram of the local structure of the present invention;

[0039] Figure 4 is another partial structural sectional view of the present invention;

[0040] Figure 5 This is another partial structural diagram of the present invention.

[0041] 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 pin, 10. vent cylinder. DETAILED DESCRIPTION

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other embodiments can be obtained based on these drawings without inventive work.

[0043] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0044] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0045] 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.

[0046] Reference Figures 1 to 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 arranged to rise and fall relative to the vulcanizer body 1; there are multiple middle molds 3, and the multiple middle molds 3 are arranged to slide horizontally relative to the upper mold 2. After the multiple middle molds 3 slide horizontally, they move closer to or away from each other; the lower mold 4 is arranged 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 long strips; when the rubber pad is cylindrical, the main body of the middle mold 3 can be arc-shaped.

[0047] In the present invention, the mold of the vulcanizer is configured as a three-part, split mold. In addition to the upper mold 2 and the lower mold 4, it also includes multiple horizontally sliding intermediate molds 3. The multiple horizontally sliding intermediate molds 3 can be self-centered when they are brought close to each other. Whether loading by hand or mechanical equipment, 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. When the multiple intermediate molds 3 are brought close to each other, the rubber pad can be pushed to the center of the multiple intermediate molds 3, thereby increasing the error tolerance of loading. During unloading, the multiple intermediate molds 3 move away from each other, separating from the rubber pad while fully exposing the rubber pad, facilitating operation and significantly improving the loading 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 easily 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-plate vulcanizer, which greatly improves production efficiency, reduces mold replacement costs and equipment downtime caused by mold replacement, and reduces mold inventory.

[0048] The working principle of the present invention is that during the rubber pad production process, the vulcanizer body 1 provides basic support and power source for the entire equipment. The upper mold 2 achieves precise lifting and lowering movement through the lifting device equipped by the vulcanizer body 1, such as a hydraulic cylinder. Multiple intermediate molds 3 are arranged on the vulcanizer body 1 or on a support 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, approaching or moving away from each other according to the size requirements of the rubber pad, 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 is 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 3.

[0049] Furthermore, the upper mold 2 includes a first vulcanizing plate 21 , which is arranged to rise and fall relative to the vulcanizer body 1 ; a support plate 22 is arranged on the first vulcanizing plate 21 , and multiple intermediate molds 3 are all arranged to slide horizontally on the support plate 22 .

[0050] In this embodiment, the first vulcanizing plate 21 of the upper mold 2 is connected to the vulcanizer body 1 via a lifting drive component, such as a screw elevator or chain elevator, attached to the top of the vulcanizer body 1. Control signals allow precise lifting and lowering relative to the vulcanizer body 1. A support plate 22 is attached to the lower surface of the first vulcanizing plate 21 by welding, bolting, or other reliable fixing methods. This support plate 22 provides support for the intermediate mold 3, ensuring stability and smoothness during horizontal sliding. During production, when the lifting mechanism of the vulcanizer body 1 drives the first vulcanizing plate 21 downward, the support plate 22 also descends, driving the intermediate mold 3 toward the lower mold 4.

[0051] The support plate 22 is mounted on the first vulcanization plate 21, providing a unified and stable mounting base for the multiple intermediate molds 3. This allows for better coordination between the horizontal sliding motion of the intermediate molds 3 and the lifting motion of the upper mold 2. This ensures the structural integrity of the molds while facilitating precise control of the relative position of the molds during the vulcanization process, improving the vulcanization quality and dimensional accuracy of the rubber mat product.

[0052] 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 .

[0053] In this embodiment, one end of the support rod 31 engages with a guide rail on the support plate 22 via a sleeve or slider structure, enabling horizontal sliding. The second vulcanization plate 32 is securely attached to the other end of the support rod 31 by welding, riveting, or bolting. An external drive device, such as a motor-driven lead screw or pneumatic cylinder, propels the support rod 31 to slide horizontally on the support plate 22, thereby driving the movement of the second vulcanization plate 32 and changing the relative positions of the multiple intermediate molds 3.

[0054] This structural design makes the horizontal sliding movement of the intermediate mold 3 more flexible and reliable. The support rods 31 effectively transmit driving force to the second vulcanizing plate 32, enabling precise adjustment of the vulcanizing space 101. It also facilitates the installation, removal, and maintenance of the intermediate molds 3. If an intermediate mold 3 malfunctions or requires replacement, operations can be performed quickly, reducing equipment maintenance time and improving production continuity. It also facilitates replacement of the intermediate mold 3 when the size of the vulcanizing space 101 needs to be adjusted, providing greater flexibility.

[0055] Furthermore, the two 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.

[0056] In this embodiment, as the second vulcanization plates 32 of the multiple intermediate molds 3 approach each other, when adjacent second vulcanization plates 32 approach each other, the sealing protrusion 321 at one end of one second vulcanization plate 32 precisely engages the sealing groove 322 of the adjacent second vulcanization plate 32, forming a labyrinth-type sealing structure. During the rubber mat vulcanization process, when the vulcanization space 101 is filled with a high-temperature, high-pressure vulcanization medium, such as steam or hot air, the labyrinth-type sealing structure effectively prevents the vulcanization medium from leaking through the gaps between adjacent second vulcanization plates 32, ensuring uniform pressure and temperature within the vulcanization space 101 and uniform vulcanization of the rubber mat. When electrical heating is used during vulcanization, the coordination between the sealing protrusion 321 and the sealing groove 322 also ensures stable pressure in the sealed space, improving the quality of the vulcanization of the rubber mat. The labyrinth-type sealing structure exhibits excellent sealing performance and effectively prevents leakage of the vulcanization medium under complex vulcanization conditions, such as high temperature, high pressure, and rubber flow. This ensures the stability and reliability of the vulcanization process, thereby improving production efficiency and the overall reliability of the equipment.

[0057] 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 the 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.

[0058] In this embodiment, the sliding sleeve 33 engages with the guide sleeves on the vulcanizer body 1 via guide posts on both sides, achieving vertical sliding installation. A guide ramp 331 is provided on the inner wall of the sliding sleeve 33. The upper end of the guide ramp 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 drive device such as a hydraulic cylinder or electric push rod, the guide ramp 331 contacts the end of the support rod 31 away from the second vulcanization plate 32, generating a thrust that pushes the support rod 31 to slide horizontally on the support plate 22. A first elastic member 5, such as a spring, is mounted on the support rod 31. Its ends are in close contact with the second vulcanization plate 32 and the support plate 22, respectively, providing an elastic force to keep the multiple second vulcanization plates 32 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, pushing the support rod 31. The first elastic member 3 is stretched, and the multiple second vulcanization plates 32 move closer together, forming a vulcanization space 101 together with the upper mold 2 and lower mold 4. The rubber pad is located within the vulcanization space 101. After vulcanization is completed, the sliding sleeve 33 slides upward relative to the upper mold 2, reducing the thrust of the guide slope 331 on the support rod 31. Under the action of the first elastic member 5, the multiple second vulcanization plates 32 move away from each other.

[0059] The design of the sliding sleeve 33 and the guide ramp 331 provides a simple and effective method for achieving synchronized horizontal sliding control of multiple intermediate molds 3, reducing the number and complexity of drive devices and lowering equipment costs. The provision of the first elastic member 5 not only assists in resetting and adjusting the initial position of the intermediate mold 3, but also, to a certain extent, cushions the impact force of the multiple second vulcanization plates 32 during their approach, protecting the mold and equipment structure, and improving the stability and service life of the equipment. It also helps to ensure that the mold applies uniform pressure to the rubber material during vulcanization, thereby enhancing the quality of the rubber mat product.

[0060] Furthermore, it also includes a mounting sleeve 6, which is detachably arranged at one end of the support rod 31, and a 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.

[0061] 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 within the mounting space. During the vertical sliding of the sliding sleeve 33, one end of the contact ball 7 contacts the guide bevel 331. Due to the rotatable nature of the contact ball 7, the frictional resistance between the support rod 31 and the guide bevel 331 can be effectively reduced, making the horizontal sliding of the support rod 31 smoother. During long-term use, if the contact ball 7 becomes worn or damaged, the mounting sleeve 6 can be easily removed and the contact ball 7 can be replaced without the need for large-scale disassembly and repair of the entire mold structure.

[0062] The use of contact balls 7 significantly reduces frictional resistance during the movement of the intermediate mold 3, improving mold flexibility and responsiveness, and reducing energy loss and equipment wear. Furthermore, the removable mounting sleeve 6 facilitates replacement and maintenance of the contact balls 7, further improving the equipment's maintainability and operational reliability, reducing long-term equipment costs, and ensuring efficient and stable rubber mat production.

[0063] 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.

[0064] In this embodiment, the flexible connecting piece 8 can adopt a spring, and the two ends thereof are respectively connected with the first vulcanization plate 21 and the sliding sleeve 33 through a connecting buckle or welding, etc. In this way, the first vulcanization plate 21 and the sliding sleeve 33 can be connected together, and the relative sliding movement of the first vulcanization plate 21 and the sliding sleeve 33 can be ensured. In the working process of the vulcanizing machine, when the lifting device of the vulcanizing machine body 1 drives the sliding sleeve 33 to descend, the flexible connecting piece 8 synchronously performs the vertical sliding movement with the first vulcanization plate 21. The intermediate mold 3 is installed below the first vulcanization plate 21, and the intermediate mold 3 cannot continue to descend after being in contact with the lower mold 4. At this time, with the continuous descent of the sliding sleeve 33, the flexible connecting piece 8 is compressed and shrinks, and the sliding sleeve 33 slides downward relative to the first vulcanization plate 21. At this time, the guide inclined surface 331 pushes the support rod 31 to slide horizontally, so that the plurality of second vulcanization plates 32 are close to each other to completely surround the rubber pad. After the rubber pad is vulcanized, the sliding sleeve 33 rises, the flexible connecting piece 8 pulls the upper mold 2 to rise, and the intermediate mold 3 returns to the initial position, so as to prepare for the next vulcanization.

[0065] The flexible connecting piece 8 realizes the movement association between the upper mold 2 and the sliding sleeve 33, so that the overall movement control of the equipment is more coordinated and automated. By reasonably designing the length, material and structure of the flexible connecting piece 8, the movement demand under different working conditions can be adapted while ensuring the accuracy of movement transmission, the movement interference or jamming phenomenon caused by rigid connection can be avoided, the running stability and reliability of the equipment are improved, the probability of equipment failure is reduced, and the production efficiency and product quality of the rubber pad are improved.

[0066] Further, the vulcanizing machine body 1 has a vulcanization area 102 and a feeding area 103, the lower mold 4 is slidingly arranged between the vulcanization area 102 and the feeding area 103, the lower mold 4 is provided with a first air hole 401, and the vulcanizing machine body 1 further comprises:

[0067] The top rod 9 is slidingly arranged relative to the lower mold 4, and the top rod 9 blocks or unblocks the first air hole 401 after sliding.

[0068] In this embodiment, the interior of the vulcanizer body 1 is provided with a separated vulcanization zone 102 and a loading 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 loading zone 103. The push rod 9 is achieved by sliding relative to the lower mold 4 through a push rod driving device such as a cylinder or a hydraulic cylinder installed on the vulcanizer body 1. During the rubber pad loading stage, the lower mold 4 is located in the loading 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 subsequent ventilation operations of the vulcanizing medium. After 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 vulcanization is completed, the push rod 9 retracts and the first air vent 401 is opened again. At this time, air can be ventilated to the first air vent 401 to assist in cooling the rubber pad and separating 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 be continued. 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, thereby facilitating heating of the mold. After the push rod 9 withdraws from the first air vent 401, it will not affect the sliding of the lower mold 4. The first air vent 401 can be designed in the form of a stepped hole. When the push rod 9 blocks the first air vent 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.

[0069] The division of the vulcanization zone 102 and the loading zone 103, along with the sliding design of the lower die 4, effectively separates the loading and vulcanization processes during rubber mat production, improving production efficiency and the equipment's degree of automation. The controllable blocking and opening of the first vent 401 by the ejector pin 9 ensures that the vent remains in the required state at different production stages, preventing leakage of the vulcanization medium and ensuring a smooth vulcanization process and consistent rubber mat product quality.

[0070] Furthermore, after the multiple second vulcanization plates 32 are close to each other, an annular air cavity 201 is formed between the second vulcanization plate 32 and the support plate 22. A second vent hole 402 is also provided on the lower mold 4, and also includes a vent cylinder 10. The vent cylinder 10 is set on the vulcanizer body 1. After the lower mold 4 slides into the vulcanization zone 102 and is closed with the upper mold 2 and multiple 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 unblocks the first vent hole 401, the first vent hole 401 is connected to the vent cylinder 10.

[0071] In this embodiment, when the plurality of second vulcanization plates 32 are close to each other after horizontal sliding, the annular air cavity 201 is naturally formed between the support plate 22. The air cylinder 10 is installed on the vulcanizing machine body 1 and is connected with the external cooling gas source and the hot air generator through the pipeline. During the vulcanization process, when the lower mold 4 slides into the vulcanization area 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 air hole 402 are respectively connected with the annular air cavity 201 and the air cylinder 10, and the top rod 9 blocks the first air hole 401. The hot air can enter the annular air cavity 201 through the second air hole 402, so as to realize uniform heat preservation of the vulcanization space 101. After the vulcanization is completed, the top rod 9 does not block the first air hole 401, and the cooling gas enters the vulcanization space 101 and the annular air cavity 201 through the first air hole 401 and the second air hole 402 respectively, so as to assist the demolding and cooling of the rubber pad.

[0072] Further, one upper mold 2 and a plurality of intermediate molds 3 form a vulcanizing part 11, a plurality of vulcanizing parts 11 are arranged on the vulcanizing machine body 1, the first air hole 401 has a plurality of, and the plurality of vulcanizing parts 11 form a plurality of vulcanization spaces 101 after being closed with the lower mold 4.

[0073] In this embodiment, on the workbench of the vulcanizing machine body 1, one upper mold 2 and a plurality of intermediate molds 3 form a vulcanizing part 11, and a plurality of vulcanizing parts 11 are arranged in a predetermined array mode such as a rectangular array or a circular array. The lower mold 4 is provided with a first air hole 401 corresponding to the position of each vulcanizing part 11. During the production of the rubber pad, after the plurality of vulcanizing parts 11 are closed with the lower mold 4, each vulcanizing part 11 forms an independent vulcanization space 101 with the lower mold 4. By controlling the cooperative work of the air cylinder 10 and the top rod 9, the rubber pads in a plurality of vulcanization spaces 101 can be vulcanized at the same time. For example, in large-scale rubber pad production, the arrayed vulcanizing part 11 design can fully utilize the workbench area of the vulcanizing machine body 1, produce a plurality of rubber pads at one time, significantly improve the production efficiency, and reduce the production cost per rubber pad. At the same time, the independent vulcanization space 101 of each vulcanizing part 11 and the corresponding air hole design ensure that each rubber pad can be uniformly vulcanized during batch production, the product quality is stable and reliable, which is conducive to meeting the market demand of large-scale rubber pad production and improving the market competitiveness of enterprises.

[0074] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not limit the present application. Although the present application 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 application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, which should be covered by the claims of the present application.

Claims

1. A flat vulcanizing press for producing rubber pads, characterized in that: include: Vulcanizing machine body (1); An upper mold (2), the upper mold (2) being arranged to rise and fall relative to the vulcanizer body (1); An intermediate mold (3), wherein the intermediate molds (3) are provided in plurality, and the plurality of intermediate molds (3) are arranged to slide horizontally relative to the upper mold (2), and the plurality of intermediate molds (3) move closer to or farther away from each other after sliding horizontally; A lower mold (4), the lower mold (4) being arranged on the vulcanizer body (1), and a plurality of the intermediate molds (3) being brought close to each other to form a vulcanization space (101) with the upper mold (2) and the lower mold (4); 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), the support plate (22) being arranged on the first vulcanization plate (21), and the plurality of intermediate molds (3) being arranged horizontally and slidably on the support plate (22); The intermediate mold (3) comprises: A support rod (31), wherein the support rod (31) is horizontally slidably arranged on the support plate (22), a second vulcanized plate (32), the second vulcanized plate (32) being arranged at one end of the support rod (31); Also includes: A sliding sleeve (33), the sliding sleeve (33) is vertically slidably arranged on the vulcanizer body (1), the inner wall of the sliding sleeve (33) has a guiding inclined surface (331), the guiding inclined surface (331) is used to abut against an end of the support rod (31) away from the second vulcanizing plate (32), and after the sliding sleeve (33) slides, it drives the multiple support rods (31) to slide synchronously; a first elastic member (5), the first elastic member (5) being sleeved on the support rod (31), with two ends acting on the second vulcanized plate (32) and the support plate (22) respectively, and the first elastic member (5) being used to provide a force for moving the plurality of second vulcanized plates (32) away from each other; 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).

2. A flat vulcanizing press for producing rubber pads according to claim 1, characterized in that: The two ends of the second vulcanized plate (32) are respectively provided with a sealing protrusion (321) and a sealing groove (322), wherein the sealing protrusion (321) is used to engage with the sealing groove (322) of the adjacent second vulcanized plate (32), and after the plurality of second vulcanized plates (32) slide close to each other, the end to end are connected in sequence, and the sealing protrusion (321) is used to form a labyrinth-type sealing structure with the sealing groove (322).

3. A flat vulcanizing press for producing rubber pads according to claim 1, characterized in that: Also includes: a mounting sleeve (6), the mounting sleeve (6) being detachably mounted on one end of the support rod (31), with a mounting space formed between the mounting sleeve (6) and the support rod (31); A contact ball (7), one end of the contact ball (7) is rotatably disposed in the installation space, the other end of the contact ball (7) extends out of the installation space, and the support rod (31) abuts against the guide inclined surface (331) through the contact ball (7).

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

5. A flat plate vulcanizing machine for producing rubber pads according to claim 4, 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 provided on the lower mold (4), further comprising: A vent cylinder (10), the vent cylinder (10) being arranged on the vulcanizer body (1), and after the lower mold (4) slides into the vulcanization zone (102) and is clamped 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 vent hole (401), the first vent hole (401) is communicated with the vent cylinder (10).

6. A flat plate vulcanizing machine for producing rubber pads according to claim 5, characterized in that: One 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 an array on the vulcanizer body (1). The first vent holes (401) are provided in plurality, and the plurality of vulcanized parts (11) and the lower mold (4) are combined to form a plurality of vulcanizing spaces (101).

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