Heating device for vulcanizing machine

Abstract

The invention discloses a heating device for a vulcanizing machine, and relates to the technical field of vulcanizing machine heating devices, the heating device comprises a substrate, the inner side of the substrate is fixedly provided with a heating coil, the upper surface of the substrate is fixedly connected with a mold, and the heating device further comprises a waste heat utilization structure arranged on the surface of the substrate, the waste heat utilization structure comprises an outer fixing ring and an inner fixing ring which are fixedly connected to the lower surface of the base plate, the lower end of the outer fixing ring is fixedly connected with an outer folding cylinder, and the lower end of the inner fixing ring is fixedly connected with an inner folding cylinder. The recycled waste heat can also be used for heating air to form hot air, the hot air can be used for drying rubber products or other materials needing to be dried, the service life of the mold is prolonged, the vulcanizing effect of the mold is improved, meanwhile, cyclic utilization of energy is achieved, and the using performance of the vulcanizing machine heating device is improved to a certain degree.

Description

Technical Field

[0001] The invention relates to the technical field of vulcanizing machine heating devices, in particular to a heating device for a vulcanizing machine. Background Art

[0002] The vulcanizer heating device is an important part of the vulcanizer. There are mainly steam heating, thermal oil heating, electric heating, gas heating and hot air circulation heating. The electric heating device converts electrical energy into thermal energy with the help of resistance heating elements. It has fast heating speed, clean and environmental protection, and easy operation. These heating devices have their own characteristics and can be selected according to production needs, energy supply, temperature control accuracy and operating costs to meet the requirements of different vulcanization processes.

[0003] A rapid and uniform heating device for a tire vulcanizer and a vulcanizer with publication number CN218570506U. The rapid and uniform heating device includes a substrate and multiple groups of heating coils. A spiral groove is provided on one end surface of the substrate. The multiple groups of heating coils are laid in sequence in the preset area of ​​the spiral groove of the substrate. The ends of adjacent groups of heating coils are arranged close to each other so that the multiple groups of heating coils are evenly embedded in the spiral groove of the substrate. The input ends of the multiple groups of heating coils are arranged in parallel, and the output ends of the multiple groups of heating coils are arranged in parallel. The multiple groups of heating coils are all connected to an AC power supply. The vulcanizer adopts the above-mentioned rapid and uniform heating device. In this application, the heating device has a fast heating speed, a uniform temperature, improves the vulcanization efficiency, has a simple structure, a long service life and is easy to maintain, which can greatly reduce the production cost of vulcanization.

[0004] The existing related technologies often have the following defects: However, in the actual use of the vulcanizer heating device, after the product is vulcanized, the moisture of the vulcanized tire product is often relatively high, which is not conducive to the subsequent rapid drying and storage of the vulcanized tire.

[0005] To this end, we propose a heating device for a vulcanizing machine. Summary of the invention

[0006] The object of the present invention is to provide a heating device for a vulcanizer to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a heating device for a vulcanizer, comprising a base plate, a heating coil is fixedly installed on the inner side of the base plate, a mold is fixedly connected to the upper surface of the base plate, and also comprises: a waste heat utilization structure arranged on the surface of the base plate, the waste heat utilization structure comprises an outer fixing ring and an inner fixing ring fixedly connected to the lower surface of the base plate, the lower end of the outer fixing ring is fixedly connected to an outer folding cylinder, the lower end of the inner fixing ring is fixedly connected to an inner folding cylinder, the lower ends of the outer fixing ring and the inner fixing ring are fixedly connected to an upper plate, the side wall of the outer fixing ring is connected to two mounting tubes, the ends of the two mounting tubes close to each other are connected to a hollow disk, the lower surface of the upper disk is provided with twelve first ventilation holes, and the upper surface of the hollow disk is provided with twelve second ventilation holes. Two ventilation holes; an auxiliary structure arranged on the surface of the outer fixed ring, the auxiliary structure comprising an upper circular plate frame rotatably mounted on the inner side of the upper disk, a lower circular plate frame rotatably mounted on the inner side of the hollow circular disk, the upper circular plate frame and the lower circular plate frame are both formed by splicing a circular plate and two groove plates, a slide plate is slidably connected to the inner side of the upper circular plate frame, the slide plate and the upper end of the lower circular plate frame are fixedly connected, twelve first reserved holes are opened on the surface of the upper circular plate frame, and twelve second reserved holes are opened on the surface of the lower circular plate frame, the first ventilation hole, the second ventilation hole, the first reserved hole and the second reserved hole are all diamond-shaped holes; a positioning structure arranged inside the lower circular plate frame, the positioning structure comprises two limit bars slidably connected to the inside of the lower circular plate frame, and the other ends of the two limit bars are fixedly connected to positioning blocks.

[0008] The effects achieved by the above components are as follows: by setting up a waste heat utilization structure, the recovered heat is reused, and the recovered waste heat can also be used to heat the air to form hot air, which can be used to dry rubber products or other materials that need to be dried, thereby increasing the service life of the mold and the vulcanization effect, while realizing the recycling of energy, and improving the performance of the vulcanizer heating device to a certain extent; by setting up an auxiliary structure, the intermittent blowing work on the upper and lower sides of the vulcanized tire is facilitated, and the efficiency of comprehensive drying of the vulcanized tire is further improved; by setting up a positioning structure, after the vulcanized tire is placed, the clamping work can be completed quickly and conveniently, providing a solid guarantee for the subsequent drying process, and comprehensively improving the stability of the vulcanized tire drying process.

[0009] Preferably, two support plates are fixedly connected to the side walls of the upper plate, and a telescopic rod is connected between the support plates and the mounting tube.

[0010] The effect achieved by the above components is: by arranging the telescopic rod to be telescopic between the mounting tube and the support plate, the moving direction between the inner folding tube and the outer folding tube is restricted.

[0011] Preferably, the side wall of the outer fixed ring is fixedly connected to a mounting frame, a first motor is fixedly installed on the inner side of the mounting frame, an output end of the first motor is fixedly connected to a driving plate, the side wall of the upper disk is fixedly connected to a limiting frame, and the driving plate is a diamond plate.

[0012] The effects achieved by the above components are: starting the first motor will drive the driving plate to twist, and when the driving plate with a diamond structure rotates, relative movement will occur between the driving plate and the limit frame, thereby realizing the lifting work of the upper plate.

[0013] Preferably, a notch is provided on the lower surface of the limiting frame.

[0014] The effect achieved by the above components is: by providing the notch on the inner side of the limit frame, the stability of lifting the limit frame and the upper plate is improved.

[0015] Preferably, the auxiliary structure also includes a gear ring fixedly connected to the side wall of the lower circular plate frame, the side wall of the hollow disc is fixedly connected to a positioning frame, a second motor is fixedly installed on the inner side of the positioning frame, and the output end of the second motor is fixedly connected to a gear, and the tooth surface of the gear is meshed with the tooth surface of the gear ring.

[0016] The effect achieved by the above components is: starting the second motor will drive the gear to rotate, thereby achieving the twisting work of the gear ring, and then achieving the purpose of driving the lower circular plate frame and the upper circular plate frame to rotate at the same time.

[0017] Preferably, the side wall of the gear ring is provided with a partial smooth surface.

[0018] The effect achieved by the above components is that by setting a partial smooth surface on the gear, the gear can be stopped during the rotation process.

[0019] Preferably, a plurality of support rings of equal size are fixedly connected to the upper surface of the lower circular plate frame.

[0020] The effect achieved by the above components is: placing the vulcanized tire on the supporting ring of equal size can avoid the phenomenon that the second reserved hole is easily blocked after the vulcanized tire is directly placed on the second reserved hole.

[0021] Preferably, the positioning structure further comprises a driving rod threadedly connected to the interior of the lower circular plate frame, and the driving rod is rotationally connected to the interior of the positioning block.

[0022] The effect achieved by the above components is that when the driving rod rotates, the positioning block can be driven.

[0023] Preferably, a V-shaped groove is formed on the surface of the positioning block.

[0024] The effect achieved by the above components is that the V-groove can closely fit the edge of the vulcanized tire with a disc-shaped structure, thereby achieving precise positioning and clamping of the vulcanized tire.

[0025] Preferably, a plurality of anti-slip grooves are evenly arranged on the inner side of the V-shaped groove.

[0026] The above components achieve the following effects: anti-skid grooves are specially provided, and these anti-skid grooves increase the friction between the positioning block and the tire, further improving the stability of clamping the vulcanized tire.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention reuses the recovered heat by setting a waste heat utilization structure. The recovered waste heat can also be used to heat the air to form hot air. The hot air can be used to dry rubber products or other materials that need to be dried, thereby increasing the service life of the mold and the vulcanization effect. At the same time, it realizes the recycling of energy and improves the performance of the vulcanizer heating device to a certain extent.

[0029] 2. The present invention sets an auxiliary structure and rotates the upper circular plate frame and the lower circular plate frame. When the first reserved hole on the upper circular plate frame flips to a position overlapping with the first ventilation hole, the compressed air above will be ejected along the first ventilation hole and the first reserved hole. At this time, the second reserved hole and the second ventilation hole on the lower circular plate frame are in a staggered state, and the second reserved hole and the second ventilation hole at the lower position are not blown. On the contrary, the second ventilation hole and the second reserved hole at the lower position are blown, thereby realizing the drying work of the upper and lower parts of the vulcanized tire, facilitating the intermittent blowing work of the upper and lower parts of the vulcanized tire, and further improving the efficiency of comprehensive drying of the vulcanized tire.

[0030] 3. The present invention provides a positioning structure. When performing a drying operation on a vulcanized tire, the vulcanized tire is firstly placed stably above the support ring. Subsequently, the operator manually rotates the driving rod. When the driving rod rotates, the positioning block can be driven. By providing the positioning structure, after the vulcanized tire is placed, the clamping work can be completed quickly and conveniently, which provides a solid guarantee for the subsequent drying process and comprehensively improves the stability of the drying process of the vulcanized tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a structural schematic diagram of another angle of the present invention;

[0033] Figure 3 For the present invention Figure 2 Schematic diagram of the disassembled structure;

[0034] Figure 4 It is a schematic diagram of the disassembled structure of the waste heat utilization structure and the auxiliary structure in the present invention;

[0035] Figure 5 It is a partial structural schematic diagram of the waste heat utilization structure in the present invention;

[0036] Figure 6 It is a schematic diagram of the local structure of the auxiliary structure in the present invention;

[0037] Figure 7 For the present invention Figure 6 Schematic diagram of the local structure;

[0038] Figure 8 For the present invention Figure 6 Enlarged view of point A.

[0039] In the figure: 1, substrate; 2, mold; 3, heating coil; 4, waste heat utilization structure; 401, mounting tube; 402, hollow disc; 403, outer folding cylinder; 404, outer fixing ring; 405, inner fixing ring; 406, inner folding cylinder; 407, upper plate; 408, first ventilation hole; 409, second ventilation hole; 410, mounting frame; 411, first motor; 412, driving plate; 413, limit frame; 414 , telescopic rod; 415, support plate; 5, auxiliary structure; 501, upper circular plate frame; 502, lower circular plate frame; 503, positioning frame; 504, second motor; 505, gear; 506, skateboard; 507, first reserved hole; 508, second reserved hole; 509, gear ring; 510, support ring; 6, positioning structure; 61, positioning block; 62, drive rod; 63, limit strip; 64, V-shaped groove; 65, anti-slip pattern. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-8The present invention provides a technical solution: a heating device for a vulcanizer, comprising a substrate 1, a heating coil 3 is fixedly installed on the inner side of the substrate 1, a mold 2 is fixedly connected to the upper surface of the substrate 1, and also comprises: a waste heat utilization structure 4 arranged on the surface of the substrate 1, the waste heat utilization structure 4 comprises an outer fixed ring 404 and an inner fixed ring 405 fixedly connected to the lower surface of the substrate 1, an outer folding cylinder 403 is fixedly connected to the lower end of the outer fixed ring 404, an inner folding cylinder 406 is fixedly connected to the lower end of the inner fixed ring 405, an upper plate 407 is fixedly connected to the lower ends of the outer fixed ring 404 and the inner fixed ring 405, a side wall of the outer fixed ring 404 is connected to two mounting tubes 401, and the ends of the two mounting tubes 401 close to each other are connected to a hollow disc 402, twelve first ventilation holes 408 are opened on the lower surface of the upper disc 407, and twelve second ventilation holes 409 are opened on the upper surface of the hollow disc 402; The auxiliary structure 5 on the surface of the fixed ring 404 comprises an upper circular plate frame 501 rotatably mounted on the inner side of the upper disk 407, a lower circular plate frame 502 rotatably mounted on the inner side of the hollow circular disk 402, the upper circular plate frame 501 and the lower circular plate frame 502 are both composed of a circular plate and two groove plates spliced ​​together, a slide plate 506 is slidably connected to the inner side of the upper circular plate frame 501, the slide plate 506 is fixedly connected to the upper end of the lower circular plate frame 502, twelve first reserved holes 507 are provided on the surface of the upper circular plate frame 501, and twelve second reserved holes 508 are provided on the surface of the lower circular plate frame 502, the first ventilation holes 408, the second ventilation holes 409, the first reserved holes 507 and the second reserved holes 508 are all diamond-shaped holes; a positioning structure 6 is arranged inside the lower circular plate frame 502, the positioning structure 6 comprises two limit bars 63 slidably connected to the inside of the lower circular plate frame 502, and the other ends of the two limit bars 63 are fixedly connected to the positioning blocks 61. By setting up the waste heat utilization structure 4, the recovered heat can be reused, and the recovered waste heat can also be used to heat the air to form hot air. The hot air can be used to dry rubber products or other materials that need to be dried, thereby increasing the service life and vulcanization effect of the mold 2, while realizing the recycling of energy, and improving the performance of the vulcanizer heating device to a certain extent; by setting up the auxiliary structure 5, the intermittent blowing work on the upper and lower sides of the vulcanized tire is facilitated, and the efficiency of comprehensive drying of the vulcanized tire is further improved; by setting up the positioning structure 6, after the vulcanized tire is placed, the clamping work can be completed quickly and conveniently, which provides a solid guarantee for the subsequent drying process and comprehensively improves the stability of the vulcanized tire drying process.

[0042] The specific settings and functions of the remaining heat utilization structure 4, the auxiliary structure 5 and the positioning structure 6 are described in detail below.

[0043] like Figure 1-Figure 5As shown, the side wall of the upper plate 407 is fixedly connected to two support plates 415, and a telescopic rod 414 is connected between the support plate 415 and the mounting tube 401. By setting the telescopic rod 414 to telescope between the mounting tube 401 and the support plate 415, the movement direction between the inner folding tube 406 and the outer folding tube 403 is limited. The side wall of the outer fixed ring 404 is fixedly connected to the mounting frame 410, and the inner side of the mounting frame 410 is fixedly installed with a first motor 411, and the output end of the first motor 411 is fixedly connected to a driving plate 412. The side wall of the upper plate 407 is fixedly connected to a limiting frame 413, and the driving plate 412 is a diamond plate. When the first motor 411 is started, the first motor 411 will drive the driving plate 412 to twist. When the driving plate 412 with a diamond structure rotates, the driving plate 412 will move relative to the limiting frame 413, so that the lifting work of the upper plate 407 can be realized. The lower surface of the limiting frame 413 is provided with a notch. By providing the notch on the inner side of the limiting frame 413 , the stability of lifting the limiting frame 413 and the upper plate 407 is improved.

[0044] like Figure 1-Figure 7 As shown, the auxiliary structure 5 also includes a toothed ring 509 fixedly connected to the side wall of the lower circular plate frame 502, and the side wall of the hollow disc 402 is fixedly connected with a positioning frame 503, and the inner side of the positioning frame 503 is fixedly installed with a second motor 504, and the output end of the second motor 504 is fixedly connected with a gear 505, and the tooth surface of the gear 505 is meshed with the tooth surface of the toothed ring 509. Start the second motor 504, the second motor 504 will drive the gear 505 to rotate, so as to achieve the torsion work of the toothed ring 509, and then the purpose of driving the lower circular plate frame 502 and the upper circular plate frame 501 to rotate at the same time can be achieved. The side wall of the toothed ring 509 is provided with a partial smooth surface. By setting the partial smooth surface on the gear 505, the gear 505 can be made to stop working during the rotation process. The upper surface of the lower circular plate frame 502 is fixedly connected with a plurality of supporting rings 510 of equal size. Placing the vulcanized tire on the supporting ring 510 of equal size can avoid the phenomenon that the second reserved hole 508 is easily blocked after the vulcanized tire is directly placed on the second reserved hole 508 .

[0045] like Figure 1-Figure 4 and Figure 8 As shown, the positioning structure 6 also includes a driving rod 62 threadedly connected to the inside of the lower circular plate frame 502, and the driving rod 62 is connected to the inside of the positioning block 61 for rotation. When the driving rod 62 rotates, the driving work of the positioning block 61 can be achieved. A V-shaped groove 64 is provided on the surface of the positioning block 61. The V-shaped groove can closely fit the edge of the vulcanized tire with a disc-shaped structure, thereby achieving accurate positioning and clamping of the vulcanized tire. A plurality of anti-skid grooves 65 are evenly arranged on the inner side of the V-shaped groove 64. The anti-skid grooves 65 are specially provided, and these anti-skid grooves 65 increase the friction between the positioning block 61 and the tire, and further improve the stability of clamping the vulcanized tire.

[0046] Working principle: When using the base plate 1, place the last processed tire on top of the hollow disc 402, start the first motor 411, and the first motor 411 will drive the driving plate 412 to twist. When the driving plate 412 with a diamond structure rotates, the driving plate 412 will move relative to the limiting frame 413, so as to realize the lifting of the upper disc 407. By setting the notch on the inner side of the limiting frame 413, the stability of lifting the limiting frame 413 and the upper disc 407 is improved. By setting the telescopic rod 414 to be telescopic between the mounting tube 401 and the support plate 415, the movement direction between the inner folding tube 406 and the outer folding tube 403 is limited. By compressing the inner folding tube 406 and the outer folding tube 403, the compressed gas will be discharged from the first ventilation hole 408 or along the mounting tube 401 to the second ventilation hole 409 on the hollow disc 402. Blowing out from the inside facilitates the blowing work on the tire surface. Since the substrate 1 is heated, the entire substrate 1 is a heated structure, so the heating work of the blown air can be achieved, thereby facilitating the drying work of the tire after vulcanization with moisture. By setting the hollow disc 402, not only the support work of the vulcanized tire is facilitated, but also the blowing work under the vulcanized tire is facilitated, thereby achieving the purpose of drying the upper and lower sides of the vulcanized tire, avoiding the situation where the tire is turned over and then dried. By setting the waste heat utilization structure 4, the recovered heat is reused, and the recovered waste heat can also be used to heat the air to form hot air. The hot air can be used to dry rubber products or other materials that need to be dried, thereby increasing the service life and vulcanization effect of the mold 2, while realizing the recycling of energy, and improving the performance of the vulcanizer heating device to a certain extent.

[0047] During the process of air-drying the vulcanized tire, the second motor 504 is started, and the second motor 504 drives the gear 505 to rotate, thereby realizing the twisting of the gear ring 509, and then realizing the purpose of driving the lower circular plate frame 502 and the upper circular plate frame 501 to rotate at the same time. By setting a sliding structure between the slide plate 506 and the upper circular plate frame 501, the normal driving work of the upper plate 407 is facilitated. By rotating the upper circular plate frame 501 and the lower circular plate frame 502, when the first reserved hole 507 on the upper circular plate frame 501 is flipped to a position overlapping with the first ventilation hole 408, the compressed air above will be ejected along the first ventilation hole 408 and the first reserved hole 507. At this time, the second reserved hole 508 and the second ventilation hole 409 on the lower circular plate frame 502 are in a staggered state. 8 and the second ventilation hole 409 are not blown, on the contrary, the second ventilation hole 409 and the second reserved hole 508 at the lower position are blown, thereby achieving the drying work of the upper and lower parts of the vulcanized tire, avoiding the phenomenon that the vulcanized tire can only be dried in all directions after being turned over, and by setting a partial smooth surface on the gear 505, the gear 505 can be paused during the rotation process, which is convenient for the pause blowing and drying work of the upper and lower parts of the vulcanized tire, and the vulcanized tire is placed on a supporting ring 510 of equal size, which can avoid the phenomenon that the second reserved hole 508 is easily blocked after the vulcanized tire is directly placed on it, thereby further improving the air outlet effect at the lower position, and by setting the auxiliary structure 5, the intermittent blowing work of the upper and lower parts of the vulcanized tire is facilitated, and the efficiency of comprehensive drying of the vulcanized tire is further improved.

[0048] When performing the drying operation of the vulcanized tire, the vulcanized tire is first placed stably on the top of the support ring 510, and then the operator manually rotates the driving rod 62. When the driving rod 62 rotates, the positioning block 61 can be driven. In this process, the limit bar 63 plays a key role. It slides smoothly along a specific track inside the lower circular plate frame 502, thereby strictly limiting the moving direction of the positioning block 61 and ensuring that the positioning block 61 can only move in a predetermined straight line direction. Both positioning blocks 61 are designed with a unique V-groove structure. When they move toward each other, the V-groove can fit closely to the edge of the vulcanized tire with a disc-shaped structure, thereby achieving the vulcanization of the vulcanized tire. Precise positioning and clamping work. This positioning and clamping method greatly improves the stability of the vulcanized tire during the rotation process, thereby making the vulcanized tire more stable during the drying process, and effectively avoiding the problem of uneven drying caused by tire shaking. Anti-skid patterns 65 are specially arranged at the contact portion between the positioning block 61 and the vulcanized tire. These anti-skid patterns 65 increase the friction between the positioning block 61 and the tire, further improving the stability of clamping the vulcanized tire. By setting the positioning structure 6, after the vulcanized tire is placed, the clamping work can be completed quickly and conveniently, providing a solid guarantee for the subsequent drying process, and comprehensively improving the stability of the vulcanized tire drying process.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heating device for a vulcanizing machine, comprising a base plate (1), characterized in that: A heating coil (3) is fixedly mounted on the inner side of the substrate (1), a mold (2) is fixedly connected to the upper surface of the substrate (1), and further comprises: A waste heat utilization structure (4) is arranged on the surface of the substrate (1), the waste heat utilization structure (4) comprising an outer fixing ring (404) and an inner fixing ring (405) fixedly connected to the lower surface of the substrate (1), the lower end of the outer fixing ring (404) is fixedly connected to an outer folding cylinder (403), the lower end of the inner fixing ring (405) is fixedly connected to an inner folding cylinder (406), the lower ends of the outer fixing ring (404) and the inner fixing ring (405) are fixedly connected to an upper plate (407), the side wall of the outer fixing ring (404) is connected to two mounting tubes (401), the ends of the two mounting tubes (401) close to each other are connected to a hollow disc (402), the lower surface of the upper disc (407) is provided with twelve first ventilation holes (408), and the upper surface of the hollow disc (402) is provided with twelve second ventilation holes (409); An auxiliary structure (5) is arranged on the surface of the outer fixed ring (404), the auxiliary structure (5) comprises an upper circular plate frame (501) rotatably mounted on the inner side of the upper disk (407), a lower circular plate frame (502) is rotatably mounted on the inner side of the hollow circular disk (402), the upper circular plate frame (501) and the lower circular plate frame (502) are both formed by splicing a circular plate and two groove plates, a slide plate (506) is slidably connected to the inner side of the upper circular plate frame (501), the slide plate (506) and the upper end of the lower circular plate frame (502) are fixedly connected, twelve first reserved holes (507) are opened on the surface of the upper circular plate frame (501), and twelve second reserved holes (508) are opened on the surface of the lower circular plate frame (502), and the first ventilation hole (408), the second ventilation hole (409), the first reserved hole (507) and the second reserved hole (508) are all rhombus holes; A positioning structure (6) is arranged inside the lower circular plate frame (502), and the positioning structure (6) comprises two limit bars (63) slidably connected inside the lower circular plate frame (502), and the other ends of the two limit bars (63) are fixedly connected with positioning blocks (61).

2. A heating device for a vulcanizing machine according to claim 1, characterized in that: Two support plates (415) are fixedly connected to the side walls of the upper plate (407), and a telescopic rod (414) is connected between the support plate (415) and the mounting tube (401).

3. A heating device for a vulcanizing machine according to claim 1, characterized in that: The side wall of the outer fixed ring (404) is fixedly connected to a mounting frame (410), a first motor (411) is fixedly installed on the inner side of the mounting frame (410), an output end of the first motor (411) is fixedly connected to a driving plate (412), the side wall of the upper plate (407) is fixedly connected to a limiting frame (413), and the driving plate (412) is a diamond-shaped plate.

4. A heating device for a vulcanizing machine according to claim 3, characterized in that: The lower surface of the limiting frame (413) is provided with a notch.

5. A heating device for a vulcanizing machine according to claim 1, characterized in that: The auxiliary structure (5) further comprises a gear ring (509) fixedly connected to the side wall of the lower circular plate frame (502); the side wall of the hollow disc (402) is fixedly connected to a positioning frame (503); a second motor (504) is fixedly mounted on the inner side of the positioning frame (503); a gear (505) is fixedly connected to the output end of the second motor (504); the tooth surface of the gear (505) meshes with the tooth surface of the gear ring (509).

6. A heating device for a vulcanizing machine according to claim 5, characterized in that: The side wall of the gear ring (509) is provided with a partial smooth surface.

7. A heating device for a vulcanizing machine according to claim 1, characterized in that: A plurality of support rings (510) of equal size are fixedly connected to the upper surface of the lower circular plate frame (502).

8. A heating device for a vulcanizing machine according to claim 1, characterized in that: The positioning structure (6) further comprises a driving rod (62) threadedly connected to the interior of the lower circular plate frame (502), and the driving rod (62) is rotatably connected to the interior of the positioning block (61).

9. A heating device for a vulcanizing machine according to claim 1, characterized in that: A V-shaped groove (64) is formed on the surface of the positioning block (61).

10. A heating device for a vulcanizing machine according to claim 9, characterized in that: A plurality of anti-slip grooves (65) are evenly arranged on the inner side of the V-shaped groove (64).

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