A vulcanizing machine for rubber inner tube

Abstract

The present invention relates to the technical field of vulcanizing machines, and proposes a vulcanizing machine for rubber inner tubes, comprising a frame; a lower mold is relatively lifted and arranged on the frame, and the lower mold has a first material receiving part; a top block is lifted and arranged on the lower mold, and the top block has a second material receiving part. After the top block is lifted and lowered, the second material receiving part is connected to or higher than the first material receiving part, and the second material receiving part and the first material receiving part are connected and combined to form a lower mold material receiving cavity, and the lower mold material receiving cavity abuts against the inner tube. Through the above technical scheme, the problem that the inner tube will adhere to the lower mold after vulcanization, resulting in difficulty in removal, is solved in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of vulcanizers, and in particular to a vulcanizer for a rubber inner tube. Background Art

[0002] In the field of rubber inner tube manufacturing, the vulcanization process is crucial. During the vulcanization process, the rubber reacts chemically with the surface of the lower mold under high temperature and high pressure, causing the inner tube to adhere to the mold after vulcanization. This adhesion makes it extremely difficult to remove the inner tube, and the operator has to use external tools or apply external force to try to separate the inner tube from the mold. This process not only consumes a lot of valuable time and greatly slows down the pace of production, but also, due to the roughness of the operation, it is very easy to cause irreparable damage to the inner tube such as scratches, tears, and even deformation. As a result, the pass rate of the inner tube is significantly reduced, and the waste of raw materials is serious, which directly leads to a sharp increase in production costs. In the large-scale batch production of inner tubes, the frequent adhesion of the inner tubes greatly extends the production cycle of each inner tube. The cycle of vulcanization, tire removal, and re-vulcanization, which could have been completed quickly, was forced to be interrupted due to the difficulty of tire removal. The equipment was in a waiting state for a long time, and the overall output was sharply reduced. At the same time, the damage to the inner tube during the removal process and the uneven vulcanization and local defects caused by the unreasonable mold structure during the vulcanization process have resulted in uneven product quality and a high defective rate. This has not only increased the cost of product inspection and screening, but has also seriously affected the company's market reputation and economic benefits. Summary of the invention

[0003] The invention provides a vulcanizing machine for a rubber inner tube, which solves the problem in the related art that after the inner tube is vulcanized, it will adhere to the lower mold, making it difficult to remove.

[0004] The technical solution of the present invention is as follows:

[0005] A vulcanizing machine for a rubber inner tube, comprising:

[0006] frame;

[0007] A lower mold, the lower mold is relatively lifted and lowered on the frame, and the lower mold has a first material receiving portion;

[0008] A top block, the top block is raised and lowered on the lower mold, the top block has a second material receiving part, after the top block is raised and lowered, the second material receiving part is connected to or higher than the first material receiving part, the second material receiving part and the first material receiving part are connected and combined to form a lower mold material receiving cavity, and the lower mold material receiving cavity abuts against the inner tube.

[0009] Optionally, the top block has an overlap portion, the lower mold has an overlap surface, and after the lower mold rises, the top block overlaps the overlap surface through the overlap portion, so that the top block and the lower mold rise synchronously, and further includes:

[0010] A heating frame, wherein the heating frame is lifted and arranged on the frame, wherein a cavity is provided inside the heating frame, wherein the lower mold is lifted and arranged inside the cavity, wherein a plurality of protrusions are provided at the bottom of the cavity, wherein after the lower mold is lowered, the top block abuts against the protrusions, thereby releasing the overlapping of the overlapping portion and the overlapping surface, and making the second material receiving portion higher than the first material receiving portion.

[0011] Optionally, the lower mold further has a plurality of retaining grooves, and further comprises:

[0012] Baffle rods, the number of which is several, and the baffle rods are arranged on the heating frame. After the lower mold rises, the baffle groove abuts against the baffle rods, driving the heating frame to rise synchronously;

[0013] A telescopic member is arranged on the frame. After the telescopic member is extended, the extended end passes through the heating frame and abuts against the lower mold to push the lower mold to rise.

[0014] Optionally, the lower mold, the top block and the heating frame together constitute a first vulcanization unit, there are a plurality of first vulcanization units, and the plurality of first vulcanization units are vertically spaced apart, further comprising:

[0015] An upper mold, one end of which has an upper mold receiving cavity, and the upper mold is arranged at the lower end of the frame and / or the heating frame. After the first vulcanization part rises, several of the first vulcanization parts are approached in sequence to make the upper mold abut against the lower mold, and the upper mold receiving cavity and the lower mold receiving cavity form a vulcanization space.

[0016] Optionally, the heating rack has an air suction channel, which is connected to the cavity; the first material receiving portion has a plurality of air vents, and two ends of the air vents are respectively connected to the lower mold material receiving cavity and the cavity.

[0017] Optionally, the lower mold has a slide groove in it, and the slide groove is connected to the vent hole, and further includes:

[0018] A lower pressing rod, the lower pressing rod is lifted and arranged on the lower mold, one end of the lower pressing rod extends out of the lower mold, and the other end of the lower pressing rod has an abutment portion;

[0019] A blocking rod, the blocking rod is slidably disposed in the sliding groove, the blocking rod has an abutment surface, and the abutment portion slidably abuts against the abutment surface;

[0020] After the lower mold is raised, one end of the lower pressing rod abuts against the upper mold, causing the lower pressing rod to descend, driving the blocking rod to slide, so that one end of the blocking rod blocks the vent hole.

[0021] Optionally, it also includes:

[0022] A first elastic member, two ends of which act on the blocking rod and the lower mold respectively, and are used to provide a force to keep the blocking rod away from the vent hole.

[0023] Optionally, it also includes:

[0024] A top column, one end of which is arranged on the lower mold. After the lower mold rises, the top column abuts against the first vulcanization part above, driving a plurality of the first vulcanization parts to rise synchronously.

[0025] Optionally, the blocking rod is rotatably and slidably arranged on the heating frame, one end of the blocking rod is located in the cavity and has a plane and an inclined surface, and the other end is located outside the heating frame, and after the blocking rod rotates, the lower mold rises and abuts against the plane or the inclined surface, and further includes:

[0026] A second elastic member, two ends of which act on the blocking rod and the heating frame respectively, and are used to provide a force for one end of the blocking rod to extend into the cavity.

[0027] Optionally, both sides of the end of the baffle rod away from the cavity have limiting grooves, and the outer side of the heating frame has a limiting rod. After the baffle rod is rotated, the limiting rod abuts against any side wall of the limiting groove to limit the rotation range of the baffle rod.

[0028] The working principle and beneficial effects of the present invention are:

[0029] In the present invention, in order to solve the problem that the inner tube will adhere to the lower mold after vulcanization in the related art, resulting in difficulty in removal, a vulcanizing machine for rubber inner tube is designed. First, a frame is constructed, and the frame is a stable supporting structure. The lower mold is relatively lifted and lowered in the frame. The lower mold is circular, and a first material receiving portion is provided on it. The top block is located at the first material receiving portion and can be lifted and lowered on the first material receiving portion. A second material receiving portion is provided on the top block. During the vulcanization process, the second material receiving portion of the top block is connected with the first material receiving portion of the lower mold to form a lower mold material receiving cavity together, and the inner tube is placed in the lower mold material receiving cavity for vulcanization, ensuring that the inner tube is stable in position during the vulcanization process. When the vulcanization is completed, the top block rises, and at this time, the first material receiving portion of the lower mold and the second material receiving portion of the top block are interlaced, that is, the second material receiving portion of the top block lifts the vulcanized inner tube from the inside of the lower mold material receiving cavity, destroying the adhesion between the inner tube and the lower mold material receiving cavity due to vulcanization, so that the inner tube can be smoothly separated from the lower mold material receiving cavity.

[0030] The advantage is that this design cleverly solves the problem of the inner tube sticking to the lower mold and being difficult to remove after vulcanization through the lifting of the top block and the unique material receiving structure. While ensuring the quality of the inner tube vulcanization, it greatly improves production efficiency, reduces damage to the inner tube caused by difficulty in removing the tire, and reduces production costs. In addition, the structure is relatively simple and easy to implement and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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.

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a schematic cross-sectional view of the internal structure of the present invention;

[0034] Figure 3 It is a cross-sectional schematic diagram of the internal structure of the present invention from another angle;

[0035] Figure 4 For the present invention Figure 3 Enlarged view of point B in the middle;

[0036] Figure 5 This is a schematic diagram of the heating rack structure of the present invention;

[0037] Figure 6 This is a schematic diagram of the lower mold structure of the present invention;

[0038] Figure 7 It is a schematic cross-sectional view of the internal structure of the lower mold of the present invention;

[0039] Figure 8 For the present invention Figure 7 Enlarged view of point C in the middle;

[0040] Fig. 9 For the present invention Figure 1 Enlarged view of point D in the middle;

[0041] Fig.10 For the present invention Figure 2 Enlarged view of point A in the middle.

[0042] In the figure: 1, frame, 2, lower mold, 201, first material receiving part, 3, top block, 301, second material receiving part, 302, overlapping part, 202, overlapping surface, 4, heating frame, 401, cavity, 402, protrusion, 203, blocking groove, 5, blocking rod, 6, telescopic member, 7, upper mold, 403, suction channel, 204, vent hole, 205, slide groove, 8, lower pressure rod, 801, abutment part, 9, blocking rod, 901, abutment surface, 10, first elastic member, 11, top column, 501, plane, 502, inclined surface, 12, second elastic member, 503, limiting groove, 404, limiting rod. DETAILED DESCRIPTION

[0043] 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.

[0044] 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".

[0045] 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 an indirect connection 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.

[0046] 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.

[0047] Reference Figure 1 to Figure 10, which is the first embodiment of the present invention, proposes a vulcanizer for rubber inner tube, including a frame 1; a lower mold 2 is relatively lifted and arranged on the frame 1, and the lower mold 2 has a first material receiving part 201; a top block 3 is lifted and arranged on the lower mold 2, and the top block 3 has a second material receiving part 301. After the top block 3 is lifted and lowered, the second material receiving part 301 is connected to or higher than the first material receiving part 201, and the second material receiving part 301 and the first material receiving part 201 are connected and combined to form a lower mold material receiving cavity, and the lower mold material receiving cavity is in contact with the inner tube.

[0048] In the present embodiment, in order to solve the problem that the inner tube will adhere to the lower mold 2 after the vulcanization is completed in the related art, resulting in the problem that it is not easy to take out, a vulcanizing machine for rubber inner tube is designed. First, a frame 1 is constructed, and the frame 1 is a stable supporting structure. The lower mold 2 is lifted and lowered relative to the frame 1. The lower mold 2 is circular, and a first material receiving portion 201 is provided thereon. The top block 3 is located at the first material receiving portion 201 and can be lifted and lowered on the first material receiving portion 201. A second material receiving portion 301 is provided on the top block 3. During the vulcanization process, the second material receiving portion 301 of the top block 3 is connected with the first material receiving portion 201 of the lower mold 2 to form a lower mold material receiving cavity together, and the inner tube is placed in the lower mold material receiving cavity for vulcanization, ensuring that the inner tube is stable in position during the vulcanization process. When vulcanization is completed, the top block 3 rises. At this time, the first material receiving part 201 of the lower mold 2 and the second material receiving part 301 of the top block 3 are intertwined, that is, the second material receiving part 301 of the top block 3 lifts the vulcanized inner tube from the inside of the lower mold receiving cavity, destroying the adhesion between the inner tube and the lower mold receiving cavity caused by vulcanization, so that the inner tube can be smoothly separated from the lower mold receiving cavity.

[0049] The advantage is that this design cleverly solves the problem of the inner tube being difficult to remove from the lower mold 2 after vulcanization through the lifting and lowering of the top block 3 and the unique material receiving structure. While ensuring the quality of the inner tube vulcanization, it greatly improves the production efficiency, reduces the damage to the inner tube caused by the difficulty in removing the tire, and reduces the production cost. In addition, the structure is relatively simple and easy to implement and maintain.

[0050] Furthermore, the top block 3 has an overlapping portion 302, and the lower mold 2 has an overlapping surface 202. After the lower mold 2 rises, the top block 3 overlaps the overlapping surface 202 through the overlapping portion 302, so that the top block 3 and the lower mold 2 rise synchronously. It also includes a heating rack 4, which is set on the frame 1 for lifting and lowering, and has a cavity 401 in the heating rack 4. The lower mold 2 is set in the cavity 401 for lifting and lowering, and the bottom of the cavity 401 has a plurality of protrusions 402. After the lower mold 2 descends, the top block 3 abuts against the protrusions 402, so that the overlapping portion 302 and the overlapping surface 202 are released from overlapping, so that the second material receiving portion 301 is higher than the first material receiving portion 201.

[0051] In this embodiment, a block-shaped overlap portion 302 protruding outward is provided on the side of the top block 3, and an overlap surface 202 is provided at a corresponding position of the lower mold 2. Before the vulcanization process starts, when the lower mold 2 rises, the top block 3 overlaps with the overlap surface 202 of the lower mold 2 through the overlap portion 302, so that the top block 3 and the lower mold 2 rise synchronously.

[0052] The heating frame 4 can realize lifting movement on the frame 1, and has a cavity 401 inside the heating frame 4, and the lower mold 2 is lifted and installed in the cavity 401. A plurality of protrusions 402 are evenly arranged at the bottom of the cavity 401. When the vulcanization is completed and the inner tube needs to be separated, the lower mold 2 descends, and the top block 3 abuts against the protrusion 402, so that the overlapping portion 302 of the top block 3 and the overlapping surface 202 of the lower mold 2 are released from the overlapping. At this time, the first material receiving portion 201 is higher than the second material receiving portion 301, which is convenient for subsequent material removal operations. This design is to achieve different movement relationships between the top block 3 and the lower mold 2 at different stages of the vulcanization process, so as to better deal with the adhesion problem between the inner tube and the lower mold 2.

[0053] The advantage is that, through the design of overlapping and releasing the overlapping, the top block 3 and the lower mold 2 can change the movement state as needed in different links of the vulcanization process. The synchronous rising in the early stage of vulcanization ensures the stable placement of the inner tube and vulcanization. After the vulcanization is completed, the overlapping is released to facilitate the handling of possible adhesion between the inner tube and the lower mold 2. At the same time, the design of the cavity 401 and the protrusion 402 of the heating frame 4 provides a reliable structural foundation for the entire operation process, further improves the flexibility and reliability of the vulcanizer operation, and helps to improve the vulcanization quality and production efficiency.

[0054] Furthermore, the lower mold 2 also has a plurality of retaining grooves 203 and retaining rods 5. The retaining rods 5 are arranged on the heating frame 4. After the lower mold 2 rises, the retaining grooves 203 abut against the retaining rods 5, driving the heating frame 4 to rise synchronously. The telescopic member 6 is arranged on the frame 1. After the telescopic member 6 is extended, the extended end passes through the heating frame 4 and abuts against the lower mold 2, pushing the lower mold 2 to rise.

[0055] In this embodiment, the lower mold 2 is evenly provided with a plurality of retaining grooves 203 at its edge. The retaining rods 5 are installed on the heating frame 4 through a specific installation position, and the number of retaining rods 5 is consistent with the number of retaining grooves 203. The telescopic member 6 is a hydraulic telescopic rod, which is installed at the bottom center of the frame 1. The extended end of the telescopic member 6 can pass through the hole reserved at the bottom of the heating frame 4 and contact the lower surface of the lower mold 2.

[0056] When the vulcanization operation starts, the telescopic member 6 extends to push the lower mold 2 up, and the retaining groove 203 of the lower mold 2 abuts against the retaining rod 5, driving the heating frame 4 to rise synchronously. This design enables an effective linkage between the lower mold 2, the retaining rod 5 and the heating frame 4, ensuring that each component works in coordination during the vulcanization process.

[0057] The advantage is that, by using the cooperation of the stop rod 5 and the stop groove 203, the lower mold 2 can effectively drive the heating frame 4 during the rising process, thereby realizing the coordinated movement between multiple components. Such a design reduces the number of additional drive devices and reduces the cost. At the same time, the design of the telescopic member 6 facilitates the precise control of the rising action of the lower mold 2, which is conducive to ensuring the stability and accuracy of the vulcanization process, and further improving the vulcanization quality and production efficiency.

[0058] Furthermore, the lower mold 2, the top block 3 and the heating rack 4 together constitute a first vulcanization part. There are several first vulcanization parts, which are vertically spaced apart. The upper mold 7 is also included. One end of the upper mold 7 has an upper mold receiving cavity. The upper mold 7 is arranged at the lower end of the frame 1 and / or the heating rack 4. After the first vulcanization part rises, several first vulcanization parts approach one after another, so that the upper mold 7 is abutted against the lower mold 2, and the upper mold receiving cavity and the lower mold receiving cavity form a vulcanization space.

[0059] In this embodiment, there are two first vulcanization parts composed of lower molds 2, top blocks 3 and heating frames 4. These first vulcanization parts are arranged vertically at intervals. The upper mold 7 is a flat plate structure, and an upper mold receiving cavity is provided on its lower surface. The upper mold 7 is set at the bottom of the frame 1 by bolts and screws.

[0060] When the vulcanization operation starts, the telescopic member 6 pushes the lower mold 2 up, and the lower mold 2 drives the heating frame 4 to rise, and the two first vulcanization parts are successively close, and the upper mold 7 accurately abuts against the lower mold 2. The upper mold receiving cavity and the lower mold receiving cavity together form a vulcanization space for vulcanization of the rubber inner tube. This design of multiple sets of first vulcanization parts and the upper mold 7 can process multiple rubber inner tubes at the same time.

[0061] The advantage is that the vertical spacing arrangement of multiple first vulcanization parts and the matching design with the upper mold 7 can vulcanize multiple rubber inner tubes at the same time. This design greatly improves production efficiency, and ensures the accurate formation of vulcanization space through reasonable structural design, which is conducive to improving vulcanization quality. At the same time, the connection and driving mode between various components ensure the stability and reliability of the entire vulcanization process, reducing vulcanization problems caused by unreasonable structure.

[0062] Furthermore, the heating rack 4 has an air suction channel 403 , which is connected to the cavity 401 . The first material receiving portion 201 has a plurality of air vents 204 , and two ends of the air vents 204 are connected to the lower mold material receiving cavity and the cavity 401 , respectively.

[0063] In this embodiment, a plurality of hollow air suction channels 403 are provided inside the heating frame 4, and the air suction channels 403 are connected to the cavity 401 inside the heating frame 4. A plurality of fine vent holes 204 are evenly drilled on the first material receiving portion 201 of the lower mold 2, and one end of the vent holes 204 is connected to the lower mold material receiving cavity, and the other end is connected to the cavity 401. During the vulcanization operation, the air suction channels 403 are connected to an external air extraction device through a pipeline.

[0064] When the vulcanization process is completed, the vacuum device is started, and the vulcanized inner tube is firmly adsorbed in the lower mold receiving cavity through the suction channel 403 and the vent hole 204, so as to prevent the inner tube from sticking to the upper mold receiving cavity after vulcanization.

[0065] Furthermore, the lower mold 2 has a slide groove 205, which is connected to the vent hole 204, and also includes a lower pressure rod 8, which is raised and lowered on the lower mold 2, with one end of the lower pressure rod 8 extending out of the lower mold 2, and the other end having a contact portion 801; the blocking rod 9 is slidably arranged in the slide groove 205, and the blocking rod 9 has a contact surface 901, and the contact portion 801 slides and contacts with the contact surface 901; after the lower mold 2 rises, one end of the lower pressure rod 8 contacts with the upper mold 7, so that the lower pressure rod 8 descends, driving the blocking rod 9 to slide, so that one end of the blocking rod 9 blocks the vent hole 204.

[0066] Furthermore, it also includes a first elastic member 10 , two ends of which act on the blocking rod 9 and the lower mold 2 respectively, so as to provide a force to keep the blocking rod 9 away from the vent hole 204 .

[0067] In this embodiment, a plurality of elongated slide grooves 205 are processed inside the lower mold 2, and each slide groove 205 is connected to a corresponding vent hole 204. The lower pressing rod 8 is installed on the lower mold 2 through a specific slot structure, one end of the lower pressing rod 8 extends out of the top of the lower mold 2, and the other end is designed as a pointed abutment portion 801. The blocking rod 9 is a rectangular parallelepiped with suitable size, smoothly installed in the slide groove 205, and can slide freely, and one end of the blocking rod 9 has a flat abutment surface 901.

[0068] During the vulcanization process, the lower mold 2 continues to rise, and when it gradually approaches and abuts against the upper mold 7, the end of the lower pressure rod 8 extending out of the lower mold 2 first contacts the upper mold 7. The upper mold 7 applies downward pressure to the lower pressure rod 8, causing the lower pressure rod 8 to descend, and the pointed abutting portion 801 of the lower pressure rod 8 will forcefully push the abutting surface 901 of the blocking rod 9, so that the blocking rod 9 slides in the slide groove 205 toward the vent 204 until one end of the blocking rod 9 accurately blocks the vent 204, effectively preventing the vent 204 from having an adverse effect on the vulcanization molding effect during the critical vulcanization process, and ensuring the smooth progress of the vulcanization process.

[0069] When the vulcanization process is completed, the vacuum device is started to absorb the inner tube. At this time, the lower pressure rod 8 is released from the contact with the upper mold 7, and under the elastic force of the first elastic member 10 (such as a spring, one end of which is connected to the blocking rod 9 and the other end is fixed to the corresponding position in the lower mold 2), the blocking rod 9 slides in the opposite direction to open the vent 204. This design can keep the inner tube in the adsorption state for subsequent operations, ensuring the continuity and efficiency of the operation.

[0070] The advantage is that the ingenious design of the lower pressure rod 8 and the blocking rod 9 can accurately control the opening and closing state of the vent 204 according to the different stages of the vulcanization process, thereby achieving precise control of the air pressure in the cavity. During the vulcanization process, by blocking the vent 204, the abnormal vulcanization caused by the vent 204 is avoided, and the vulcanization molding effect is guaranteed. After the vulcanization is completed, the vent 204 can be opened in time, while maintaining the inner tube stably adsorbed on the lower mold material cavity, which greatly optimizes the subsequent operation process. This effectively reduces the vulcanization quality problems caused by the accidental movement of the inner tube, and significantly improves the stability and controllability of the entire vulcanization process.

[0071] Furthermore, it also includes a top column 11, one end of which is arranged on the lower mold 2. After the lower mold 2 rises, the top column 11 abuts against the upper first vulcanization part, driving the first vulcanization parts to rise synchronously.

[0072] In this embodiment, a top post 11 is installed at a suitable position (such as the center) of each lower mold 2, one end of the top post 11 is firmly fixed on the lower mold 2, and the other end extends upward. When the vulcanization operation starts, when the lower mold 2 rises under the push of the telescopic member 6, the top post 11 on the lower mold 2 at the bottom will gradually approach the bottom of the upper lower mold 2 as the lower mold 2 rises.

[0073] When the lower mold 2 below rises to a certain height, the top column 11 contacts the bottom of the upper lower mold 2. Due to the support and pushing action of the top column 11, the upper lower mold 2 also begins to rise, thereby driving several first vulcanization parts to rise synchronously, ensuring the coordination and consistency of the rising actions among the multiple first vulcanization parts, so that the upper mold 7 can accurately abut against each lower mold 2 to form a stable vulcanization space.

[0074] The advantage is that the design of the top column 11 cleverly solves the problem of synchronous rise of multiple first vulcanization parts. Through the transmission effect of the top column 11 between adjacent lower molds 2, the coordinated movement of multiple vulcanization parts during the rise process is achieved, and there is no need to set up a complex synchronous drive device for each vulcanization part. This not only simplifies the structure of the vulcanizer and reduces costs, but also improves the stability and reliability of the vulcanizer operation, ensures the accuracy of the vulcanization space formation, is conducive to improving the vulcanization quality and production efficiency, and ensures that each rubber inner tube can be processed under suitable vulcanization conditions.

[0075] Furthermore, the baffle rod 5 is rotatably and slidably arranged on the heating rack 4, one end of the baffle rod 5 is located in the cavity 401, and has a plane 501 and an inclined surface 502, and the other end is located outside the heating rack 4. After the baffle rod 5 rotates, the lower mold 2 rises and abuts against the plane 501 or the inclined surface 502, and also includes a second elastic member 12, and the two ends of the second elastic member 12 act on the baffle rod 5 and the heating rack 4 respectively, for providing a force for one end of the baffle rod 5 to extend into the cavity 401.

[0076] In this embodiment, the blocking rod 5 is installed through the shaft hole and the slide groove provided on the heating frame 4, so that it can rotate around the shaft hole and slide along the slide groove within a certain range. One end of the blocking rod 5 is located in the cavity 401, and this end is designed to have a special shape with a plane 501 and an inclined surface 502, and the other end is located outside the heating frame 4. The second elastic member 12 is installed in the portion of the blocking rod 5 located in the slide groove of the heating frame 4. The second elastic member 12 can be a tension spring, one end of the spring is connected to the blocking rod 5, and the other end is fixed to the corresponding position in the slide groove of the heating frame 4.

[0077] When it is necessary to replace the lower mold 2 of another type, the operator manually rotates several stop rods 5 in sequence, so that the inclined surface 502 at one end of the stop rod 5 in the cavity 401 faces downward. Then the equipment is started to raise the lower mold 2, and the stop groove 203 on the edge of the lower mold 2 contacts the inclined surface 502 of the stop rod 5. As the lower mold 2 continues to rise, the stop groove 203 squeezes the inclined surface 502. Due to the guiding effect of the inclined surface 502, the stop rod 5 slides along the guide rail on the heating frame 4 in the direction away from the lower mold 2, so that the lower mold 2 can pass through the stop rod 5 smoothly without hindrance, thereby leaving the heating frame 4, and the operation of quickly replacing the lower mold 2 is realized.

[0078] When vulcanization is to be carried out normally, the operator rotates the stopper 5 to the position where the plane 501 faces downward. When the vulcanization process is started and the lower mold 2 rises, the stopper groove 203 of the lower mold 2 contacts the plane 501 of the stopper 5. Because the plane 501 cannot make the stopper 5 slide like the inclined surface 502, the stopper groove 203 contacts the plane 501 of the stopper 5 during the rising process of the lower mold 2, and the lower mold 2 can drive the heating frame 4 to rise synchronously, ensuring that all components work together as designed during the vulcanization process.

[0079] The advantage is that the baffle rod 5 is rotatable and combined with the design of the plane 501 and the inclined surface 502, in conjunction with the second elastic member 12, it brings great operational convenience and functional diversity to the vulcanizer. When replacing the lower mold 2, the lower mold 2 can be easily separated from the heating rack 4 through the simple rotation operation of the baffle rod 5 and the design of the inclined surface 502, which greatly shortens the time for replacing the mold and improves the maintainability of the equipment and the adaptability to molds of different models. During normal vulcanization work, the design of the plane 501 ensures reliable linkage between the lower mold 2 and the heating rack 4, ensuring stable vulcanization operation. The entire design optimizes the operating process of the equipment, improves production efficiency, reduces problems that may be caused by difficult mold replacement or unstable linkage of components during vulcanization, and ensures vulcanization quality.

[0080] Furthermore, both sides of the end of the blocking rod 5 away from the cavity 401 have limiting grooves 503, and the outer side of the heating frame 4 has a limiting rod 404. After the blocking rod 5 rotates, the limiting rod 404 abuts against any side wall of the limiting groove 503 to limit the rotation range of the blocking rod 5.

[0081] In this embodiment, two limiting grooves 503 are respectively provided on both sides of one end of the blocking rod 5 away from the cavity 401 by means of mechanical processing. At the same time, a limiting rod 404 is installed at a corresponding position outside the heating frame 4. The sizes of the limiting rod 404 and the limiting groove 503 match each other, and the limiting function can be accurately realized.

[0082] When the stopper 5 is rotating, whether it is rotating in a normal vulcanization working state or rotating when replacing the lower mold 2, the limiting rod 404 will abut against the side wall of the corresponding limiting groove 503. For example, when the stopper 5 is rotated to the working position where the rising stopper groove 203 of the lower mold 2 abuts against the plane 501, the limiting rod 404 will contact the side wall of one of the limiting grooves 503, restricting the stopper 5 from continuing to rotate, ensuring that the plane 501 can stably cooperate with the stopper groove 203 of the lower mold 2, and realizing the function of the lower mold 2 rising to drive the heating frame 4 to rise synchronously. When the stopper 5 is rotated to perform the lower mold 2 replacement operation, the stopper 5 is rotated to a specific angle, and the limiting rod 404 abuts against the side wall of another limiting groove 503, preventing the stopper 5 from excessively rotating, and ensuring the stability of the stopper 5 when the inclined surface 502 interacts with the stopper groove 203 of the lower mold 2.

[0083] The advantage is that the design of the limit rod 404 and the limit groove 503 provides precise limits for the rotation of the stop rod 5. This not only ensures that the stop rod 5 can be accurately located at the predetermined position in different working modes (normal vulcanization work and replacement of the lower mold 2), ensuring the correct linkage relationship between the lower mold 2 and the heating rack 4, but also avoids equipment failures that may be caused by accidental excessive rotation of the stop rod 5. This precise limit function improves the accuracy and stability of equipment operation, further ensures the smooth progress of the vulcanization process, and also extends the service life of the equipment, reduces the maintenance requirements caused by improper position of the stop rod 5, and improves production efficiency and product quality.

[0084] 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 vulcanizing machine for a rubber inner tube, characterized in that: include: Rack(1); A lower mold (2), the lower mold (2) being relatively raised and lowered on the frame (1), the lower mold (2) comprising a first material receiving portion (201); A top block (3), the top block (3) is arranged on the lower mold (2) in a lifting manner, the top block (3) has a second material receiving portion (301), after the top block (3) is lifted, the second material receiving portion (301) is in contact with or higher than the first material receiving portion (201), the second material receiving portion (301) and the first material receiving portion (201) are connected and combined to form a lower mold material receiving cavity, the lower mold material receiving cavity is used to abut against the inner tube; The top block (3) has an overlapping portion (302), and the lower mold (2) has an overlapping surface (202). After the lower mold (2) rises, the top block (3) overlaps the overlapping surface (202) via the overlapping portion (302), so that the top block (3) and the lower mold (2) rise synchronously, and further comprising: A heating rack (4), the heating rack (4) being arranged on the frame (1) in a lifting manner, the heating rack (4) having a cavity (401) therein, the lower mold (2) being arranged in the cavity (401) in a lifting manner, the bottom of the cavity (401) having a plurality of protrusions (402), after the lower mold (2) is lowered, the top block (3) abuts against the protrusions (402), so that the overlapping portion (302) and the overlapping surface (202) are released from overlapping, so that the second material receiving portion (301) is higher than the first material receiving portion (201); The lower mold (2) further comprises a plurality of retaining grooves (203), and further comprises: Baffle rods (5), the number of the baffle rods (5) being several, the baffle rods (5) being arranged on the heating rack (4), and after the lower mold (2) rises, the baffle grooves (203) abut against the baffle rods (5), thereby driving the heating rack (4) to rise synchronously; A telescopic member (6), wherein the telescopic member (6) is arranged on the frame (1); after the telescopic member (6) is extended, the extended end passes through the heating frame (4) and abuts against the lower mold (2), thereby pushing the lower mold (2) to rise.

2. A vulcanizing machine for a rubber inner tube according to claim 1, characterized in that: The lower mold (2), the top block (3) and the heating frame (4) together form a first vulcanization section, the first vulcanization sections are in a plurality, and the plurality of first vulcanization sections are arranged vertically at intervals, and further include: An upper mold (7), one end of which is provided with an upper mold receiving cavity, the upper mold (7) being arranged at the lower end of the frame (1) and / or the heating frame (4), and after the first vulcanization part rises, a plurality of the first vulcanization parts are sequentially approached, so that the upper mold (7) is in contact with the lower mold (2), and the upper mold receiving cavity and the lower mold receiving cavity form a vulcanization space.

3. A vulcanizing machine for a rubber inner tube according to claim 2, characterized in that: The heating rack (4) has an air suction channel (403), the air suction channel (403) is connected to the cavity (401), the first material receiving portion (201) has a plurality of air vents (204), and the two ends of the air vents (204) are respectively connected to the lower mold material receiving cavity and the cavity (401).

4. A vulcanizing machine for a rubber inner tube according to claim 3, characterized in that: The lower mold (2) has a slide groove (205) therein, the slide groove (205) is communicated with the vent hole (204), and further comprises: A lower pressing rod (8), the lower pressing rod (8) being arranged on the lower mold (2) in a lifting manner, one end of the lower pressing rod (8) extending out of the lower mold (2), and the other end of the lower pressing rod (8) having an abutting portion (801); A blocking rod (9), the blocking rod (9) being slidably disposed in the sliding groove (205), the blocking rod (9) having an abutment surface (901), the abutment portion (801) being in slidable abutment with the abutment surface (901); After the lower mold (2) rises, one end of the lower pressure rod (8) abuts against the upper mold (7), causing the lower pressure rod (8) to descend, driving the blocking rod (9) to slide, so that one end of the blocking rod (9) blocks the vent hole (204).

5. A vulcanizing machine for a rubber inner tube according to claim 4, characterized in that: Also includes: A first elastic member (10), wherein two ends of the first elastic member (10) act on the blocking rod (9) and the lower mould (2) respectively, and are used to provide a force to move the blocking rod (9) away from the vent hole (204).

6. A vulcanizing machine for a rubber inner tube according to claim 2, characterized in that: Also includes: A top column (11), one end of which is arranged on the lower mold (2); after the lower mold (2) rises, the top column (11) abuts against the first vulcanization part above, driving a plurality of the first vulcanization parts to rise synchronously.

7. A vulcanizing machine for a rubber inner tube according to claim 1, characterized in that: The blocking rod (5) is rotatably and slidably arranged on the heating frame (4); one end of the blocking rod (5) is located in the cavity (401) and has a plane (501) and an inclined surface (502); the other end is located outside the heating frame (4); after the blocking rod (5) rotates, the lower mold (2) rises and abuts against the plane (501) or the inclined surface (502); and further comprises: A second elastic member (12), two ends of the second elastic member (12) acting on the blocking rod (5) and the heating frame (4) respectively, for providing a force for one end of the blocking rod (5) to extend into the cavity (401).

8. A vulcanizing machine for a rubber inner tube according to claim 1, characterized in that: The blocking rod (5) has limiting grooves (503) on both sides of one end away from the cavity (401), and the heating frame (4) has a limiting rod (404) on the outside. After the blocking rod (5) is rotated, the limiting rod (404) abuts against any side wall of the limiting groove (503) to limit the rotation range of the blocking rod (5).

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