Automatic cleaning device for lower mold of vulcanizing machine and vulcanizing machine

Abstract

The utility model discloses an automatic cleaning device for a lower die of a vulcanizing machine and the vulcanizing machine, and belongs to the technical field of vulcanizing equipment, the automatic cleaning device comprises at least one annular groove component, the annular groove component comprises two structural bodies, and an annular groove is formed in the butt joint face of at least one structural body; the two structural bodies are in butt joint, and the annular grooves form an annular gas distribution cavity. The gas distribution cavity is communicated with a gas outlet structure, and gas in the gas distribution cavity is exhausted upwards, obliquely downwards and outwards in the whole circumferential direction of the gas distribution cavity through the gas outlet structure; the vulcanizing machine comprises a lower mold and a supporting mechanism, and further comprises the automatic cleaning device for the lower mold of the vulcanizing machine, and the automatic cleaning device for the lower mold of the vulcanizing machine ascends and descends along with a ring seat of the supporting mechanism. The airflow intensity of the ring groove component is uniform, the whole surface of the lower mold can be completely covered in the rising process of the ring base, the cleaning efficiency is high, and the working efficiency of the vulcanizing machine is high.

Description

Technical Field

[0001] The utility model relates to the technical field of vulcanization equipment, in particular to an automatic cleaning device for a lower mold of a vulcanizer and a vulcanizer. Background Art

[0002] In traditional tire vulcanization processes, a vulcanizer is required. For example, in a tire vulcanization device disclosed in the publication number CN219133308U, the vulcanization mold is arranged to be openable and closable, and a vulcanization cavity is formed inside; the green tire is placed in the vulcanization cavity, and a vulcanization bladder is arranged inside the green tire, and a heating medium is introduced into the vulcanization bladder to cooperate with the vulcanization mold to complete the vulcanization of the tire. At present, during the continuous vulcanization of tires by a tire vulcanizer, there are often rubber materials and foreign objects remaining on the surface of the lower mold, which is also a problem that troubles most tire manufacturers and operators.

[0003] At present, the manual air blowing device on the market has a good cleaning effect but relies on manual labor, which affects the efficiency; for the automatic air blowing device, limited by the structure of the vulcanizer itself, the available space is small, the structure of the automatic air blowing device is complex, and its combination with the vulcanizer is poor, and both the cleaning effect and the working efficiency are not ideal. Summary of the Utility Model

[0004] Regarding the problems existing in the prior art, the utility model provides an automatic cleaning device for a lower mold of a vulcanizer and a vulcanizer. The automatic cleaning device has a simple structure, is convenient to be integrated on the vulcanizer, has a good cleaning effect, and a high working efficiency.

[0005] In order to achieve the above object, the technical solution adopted by the utility model is as follows:

[0006] On the one hand, the utility model provides an automatic cleaning device for a lower mold of a vulcanizer, which includes at least one annular groove member. The annular groove member includes two structural bodies, and at least one of the docking surfaces of the structural bodies is provided with an annular groove; the two structural bodies are docked and the annular groove forms an annular gas distribution cavity;

[0007] The gas distribution cavity is communicated with an air outlet structure, and the gas in the gas distribution cavity blows out obliquely downward in the entire circumferential direction of the gas distribution cavity through the air outlet structure.

[0008] In the above automatic cleaning device for a lower mold of a vulcanizer, the air outlet structure includes an air outlet channel provided on the side wall of the gas distribution cavity, and the air outlet channel extends in the entire circumferential direction of the gas distribution cavity.

[0009] In the above-mentioned automatic cleaning device for the lower die of a vulcanizer, there are a sealing butt joint surface group and an air outlet butt joint surface group between the two structures. The two butt joint surfaces in the sealing butt joint surface group are sealingly connected, and there is a gap between the two butt joint surfaces of the air outlet butt joint surface group to form the air outlet channel.

[0010] In the above-mentioned automatic cleaning device for the lower die of a vulcanizer, a seal is provided between the two butt joint surfaces of the sealing butt joint surface group;

[0011] And / or, a gasket is provided between the two butt joint surfaces of the sealing butt joint surface group;

[0012] And / or, the two structures are detachably connected.

[0013] In the above-mentioned automatic cleaning device for the lower die of a vulcanizer, in the axial direction of the gas distribution cavity, the two structures of the annular groove member are arranged side by side up and down;

[0014] Or, in the two structures of the annular groove member, one of the structures is sleeved outside the other structure.

[0015] In the above-mentioned automatic cleaning device for the lower die of a vulcanizer, one of the two structures of the annular groove member is an annular seat.

[0016] In the above-mentioned automatic cleaning device for the lower die of a vulcanizer, the air outlet structure includes a plurality of air nozzles, and the plurality of air nozzles are distributed in the entire circumferential direction of the gas distribution cavity.

[0017] In the above-mentioned automatic cleaning device for the lower die of a vulcanizer, the air outlet structure is located outside or below the gas distribution cavity.

[0018] In the above-mentioned automatic cleaning device for the lower die of a vulcanizer, the gas distribution cavity is communicated with a gas supply mechanism; the gas supply mechanism includes a connecting pipe, the output end of the connecting pipe is communicated with the gas distribution cavity, and the input end is connected to an external gas source through an electromagnetic valve.

[0019] On the other hand, the present invention provides a vulcanizer, which includes a lower die and a support mechanism; it also includes the above-mentioned automatic cleaning device for the lower die of a vulcanizer, and the automatic cleaning device for the lower die of a vulcanizer rises and falls with the annular seat of the support mechanism.

[0020] The beneficial effects of the present invention are as follows:

[0021] In two structures of the annular groove member, an annular groove is provided on the butt joint surface of one of the structures. After the two structures are butted, a closed annular gas distribution cavity is formed. The gas distribution cavity has an air outlet structure and can blow air in the entire circumferential direction of the gas distribution cavity. The gas in the gas distribution cavity blows out obliquely downward through the air outlet structure; the air flow intensity is uniform, and there is no dead angle in the cleaning, covering the lower mold 360°; realizing a comprehensive and thorough removal of foreign objects and rubber materials;

[0022] At the same time, during the rising process of the annular groove member along with the annular seat, it can completely cover the entire surface of the lower mold, significantly improving the cleaning efficiency, and correspondingly greatly improving the working efficiency of the vulcanizer;

[0023] Reducing the workload of operators and improving production efficiency. Brief Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the automatic cleaning device for the lower mold of the vulcanizer of the present invention;

[0025] Figure 2 It is Figure 1 an enlarged view of area A in

[0026] Figure 3 It is a schematic diagram of the use state of the automatic cleaning device for the lower mold of the vulcanizer of the present invention;

[0027] Figure 4 It is a schematic diagram of the cleaning process of the automatic cleaning device for the lower mold of the vulcanizer of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the second embodiment of the annular groove member in the automatic cleaning device for the lower mold of the vulcanizer of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the third embodiment of the annular groove member in the automatic cleaning device for the lower mold of the vulcanizer of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the fourth embodiment of the annular groove member in the automatic cleaning device for the lower mold of the vulcanizer of the present invention;

[0031] Figure 8 It is a schematic diagram of the structure of the fifth embodiment of the annular groove member in the automatic cleaning device for the lower mold of the vulcanizer of the present invention;

[0032] Figure 9 It is a schematic diagram of the structure of the sixth embodiment of the annular groove member in the automatic cleaning device for the lower mold of the vulcanizer of the present invention;

[0033] Figure 10 The structural schematic diagram of the seventh embodiment of the annular groove member in the automatic cleaning device for the lower die of the vulcanizer according to the present utility model;

[0034] Figure 11 The structural schematic diagram of the eighth embodiment of the annular groove member in the automatic cleaning device for the lower die of the vulcanizer according to the present utility model;

[0035] Figure 12 The structural schematic diagram of the ninth embodiment of the annular groove member in the automatic cleaning device for the lower die of the vulcanizer according to the present utility model;

[0036] Figure 13 The structural schematic diagram of the tenth embodiment of the annular groove member in the automatic cleaning device for the lower die of the vulcanizer according to the present utility model;

[0037] Figure 14 The structural schematic diagram of the eleventh embodiment of the annular groove member in the automatic cleaning device for the lower die of the vulcanizer according to the present utility model.

[0038] In the figure:

[0039] 1 - Lower die; 2 - Support mechanism; 21 - Ring seat; 211 - Eighth sealing surface; 212 - Eighth air outlet guiding surface; 213 - Ring platform; 214 - Connecting seat; 215 - Spacer block;

[0040] 3 - Annular groove member; 31 - Gas distribution cavity; 32 - First structural body; 321 - First sealing surface; 322 - First air outlet guiding surface; 33 - Second structural body; 331 - Second sealing surface; 332 - Second air outlet guiding surface; 34 - Fifth structural body; 341 - Fifth sealing surface; 342 - Fifth air outlet guiding surface; 35 - Sixth structural body; 351 - Sixth sealing surface; 352 - Sixth air outlet guiding surface; 36 - Third structural body; 361 - Third sealing surface; 362 - Third air outlet guiding surface; 363 - Inner connection hole; 37 - Fourth structural body; 371 - Fourth sealing surface; 372 - Fourth air outlet guiding surface; 373 - Outer connection hole; 38 - Seventh structural body; 381 - Seventh sealing surface; 382 - Seventh air outlet guiding surface; 39 - Eighth structural body; 310 - Ninth structural body; 311 - Tenth structural body; 312 - Eleventh structural body; 313 - Twelfth structural body; 314 - Thirteenth structural body; 315 - Fourteenth structural body; 316 - Fifteenth structural body; 317 - Sixteenth structural body; 318 - Eighteenth structural body; 319 - Seventeenth structural body;

[0041] 4 - Air supply mechanism; 41 - Connecting pipe; 42 - Solenoid valve;

[0042] 5 - Air outlet channel; 6 - Gasket; 7 - Sealing member; 8 - Connecting member; 9 - Air nozzle. Detailed implementation manners

[0043] For the convenience of those skilled in the art to understand, the following further describes the present utility model in conjunction with the accompanying drawings.

[0044] Please refer to Figures 1-4 , which is an embodiment of a vulcanizer provided by the present utility model. The vulcanizer includes a lower mold 1 and a support mechanism 2. Among them, the middle part of the lower mold 1 has an installation hole penetrating its upper and lower sides, and the support mechanism 2 is located in the installation hole. The support mechanism 2 has a ring seat 21, and controlling the support mechanism 2 can make the ring seat 21 lift relative to the lower mold 1. Both the lower mold 1 and the support mechanism 2 are prior arts, and no improvements are made in this application, so the specific structures thereof will not be elaborated.

[0045] In order to realize automatic cleaning of the lower mold 1, an automatic cleaning device for the lower mold of the vulcanizer is provided on the ring seat 21, and the automatic cleaning device lifts and lowers with the lifting of the ring seat 21. Preferably, the automatic cleaning device is arranged at the lower end of the ring seat 21, which has no influence on the existing functional structure of the ring seat 21 and is convenient for processing, manufacturing and assembly.

[0046] Please refer to Figures 1-4 , the automatic cleaning device for the lower mold of the vulcanizer includes at least one ring groove member 3. The ring groove member 3 is assembled by two structural bodies. The two structural bodies are preferably detachably connected, for example, connected by connecting parts such as bolts, which is convenient for adjusting the ring groove member 3 or replacing parts when needed. In the two structural bodies, at least one docking surface is partially concave to form a ring groove. After the two structural bodies are docked, the ring groove forms a gas distribution cavity 31, and the gas distribution cavity 31 is distributed in the entire circumference of the ring seat 21. If ring grooves are provided on the docking surfaces of both structural bodies, the two ring grooves are communicated to jointly form the gas distribution cavity 31. The cross-sectional shape of the gas distribution cavity 31 is not limited to circular, rectangular, etc., and can be set to any shape according to needs.

[0047] The gas distribution cavity 31 is communicated with a gas supply mechanism 4, and the required gas, preferably compressed air, is supplied into the gas distribution cavity 31 through the gas supply mechanism 4. The flow rate and flow velocity of the supplied gas are both controllable to meet different cleaning requirements. For example, the gas supply mechanism 4 includes a connecting pipe 41. The output end of the connecting pipe 41 is communicated with the gas distribution cavity 31, and the input end is connected to an external gas source through an electromagnetic valve 42. The external gas source can adopt existing equipment on the market, and no improvements are made in this application.

[0048] The gas distribution cavity 31 is communicated with an air outlet structure. Through the air outlet structure, the gas in the gas distribution cavity 31 exits in the entire circumference of the ring seat 21, and the air outlet direction is obliquely downward and outward. The air outlet flow direction can refer to the Figure 3 and Figure 4 indicated by the arrows in; realizing blowing air on the lower mold 1 in a 360° dead-angle-free manner.

[0049] Axially, the number of the annular groove members 3 can be set to two or more to meet the usage requirements of different cleaning situations. The annular groove members 3 move up and down synchronously with the annular seat 21. After the tire vulcanization is completed and the vulcanization mold is opened, the support mechanism 2 is controlled to make the annular seat 21 move upward. During the upward movement of the annular seat 21, the air supply mechanism 4 supplies gas into the gas distribution cavity 31, and the gas is blown on the upper surface of the lower mold 1 through the air outlet structure; as the annular groove members 3 pass through the positions A1, A2, and A3 shown in Figure 4 sequentially, the lower mold 1 is cleaned from the inside to the outside. The air outlet structure continuously blows air obliquely downward and outward uniformly in the circumferential direction of the annular seat 21, realizing a 360° non-dead-angle and non-gap cleaning of the lower mold 1 from the inside to the outside, and pushing the debris and other dirt on the lower mold 1 from the inside to the outside until it is completely cleaned.

[0050] Preferably, the air outlet structure is located on the lower side or the outer side of the gas distribution cavity 31, which can be closer to the lower mold 1 to ensure the cleaning effect.

[0051] As an implementation manner of the air outlet structure, please refer to Figure 2 and Figures 5-9 , the air outlet structure is an annular air outlet channel 5 provided on the outer side wall or the lower side wall of the gas distribution cavity 31. The air outlet channel 5 communicates the gas distribution cavity 31 with the outside; the air outlet channel 5 extends in the entire circumferential direction of the annular seat 21. The annular air outlet of the air outlet channel 5 has uniform air outlet, simplifies the overall structure of the automatic cleaning device, saves the installation space, and is applicable to the working conditions where no air nozzle can be installed. The air outlet channel 5 is designed through calculation according to the actual usage requirements, and the air outlet angle does not need to be adjusted during the later production process, and can clean the dirt on the surface of different types of lower molds 1, with strong versatility.

[0052] The annular air outlet of the air outlet channel 5 can be on a certain horizontal plane, which is convenient for production and processing; it can also be set as a spiral shape or any other annular shape with a certain angle relative to the horizontal plane, as long as the air is evenly discharged in the entire circumferential direction of the annular seat 21.

[0053] When two structures of the same annular groove member 3 are butted, there are two butt joints. Each butt joint corresponds to two butt surfaces. The two butt surfaces of the same butt joint form a group of butt surface groups. The two butt surfaces of one group of butt surface groups form a seal and do not allow gas to pass through, limiting the gas in the gas distribution cavity 31, which is hereinafter referred to as the sealed butt surface group; there is a gap between the two butt surfaces in the other group of butt surface groups, forming an annular air outlet channel 5, which is hereinafter referred to as the air outlet butt surface group. The size of the gap between the two butt surfaces of the air outlet butt surface group can be designed or adjusted according to needs. Sealing members 7 can be provided between the two butt surfaces of the sealed butt surface group according to the sealing needs.

[0054] As the first embodiment of the annular groove member 3, please refer toFigure 2 , the annular groove member 3 includes an annular first structure body 32 and a second structure body 33. Axially of the annular seat 21, the first structure body 32 and the second structure body 33 are arranged side by side up and down; after they are butted and overlapped, they are fixedly connected to the annular seat 21 through a connecting member 8. The connecting member 8 can be a bolt. Threaded holes are machined on the lower end face of the annular seat 21, through holes are machined at corresponding positions of the first structure body 32 and the second structure body 33, and the bolt passes through the two through holes from bottom to top and then is screwed and connected with the threaded hole, fixing the first structure body 32 and the second structure body 33 on the annular seat 21. The assembly structure of the annular groove member 3 is simple, easy to operate, and also beneficial to production and application.

[0055] Both the butting surfaces of the first structure body 32 and the second structure body 33 have annular grooves, that is, the upper end face of the first structure body 32 has a first annular groove, the upper end face of the inner groove wall of the first annular groove constitutes a first sealing surface 321, and the upper end face of the outer groove wall constitutes a first gas outlet guiding surface 322; the lower end face of the second structure body 33 has a second annular groove, the lower end face of the inner groove wall of the second annular groove constitutes a second sealing surface 331, and the lower end face of the outer groove wall constitutes a second gas outlet guiding surface 332. The first sealing surface 321 and the second sealing surface 331 form a sealing butting surface group, the first annular groove and the second annular groove communicate to form a gas distribution cavity 31, the first gas outlet guiding surface 322 and the second gas outlet guiding surface 332 form a gas outlet butting surface group, and a certain gap is maintained between the first gas outlet guiding surface 322 and the second gas outlet guiding surface 332 to form an annular gas outlet channel 5. The first sealing surface 321, the second sealing surface 331, the first gas outlet guiding surface 322, and the second gas outlet guiding surface 332 are all annular surfaces, and the first sealing surface 321 and the second sealing surface 331 are preferably flat surfaces, which are convenient for processing and sealing.

[0056] Preferably, a gasket 6 is arranged between the first sealing surface 321 and the second sealing surface 331, and the gasket 6 is preferably an annular gasket; the connecting member 8 extends axially of the annular seat 21. After the connecting member 8 passes through the first structure body 32 and the second structure body 33 from bottom to top in sequence, it is fixedly connected to the annular seat 21. The connecting member 8 is preferably a part such as a bolt or a screw that is threadedly connected to the annular seat 21. When it is necessary to adjust the gap between the first gas outlet guiding surface 322 and the second gas outlet guiding surface 332, the first structure body 32 and the second structure body 33 can be disassembled and a gasket 6 with a suitable thickness can be replaced, which is convenient for operation.

[0057] A seal 7 is arranged between the first sealing surface 321 and the second sealing surface 331 to further optimize and improve the sealing effect of the first sealing surface 321 and the second sealing surface 331.

[0058] As the second embodiment of the annular groove member 3, please refer to Figure 5, the annular groove member 3 includes a third structure body 36 and a fourth structure body 37. Both the third structure body 36 and the fourth structure body 37 are annular, and the fourth structure body 37 is sleeved on the outer side of the third structure body 36. After the third structure body 36 and the fourth structure body 37 are fixedly connected into a whole by a detachable connection method such as bolts and screws, they are fixedly installed on the annular seat 21 through a connecting member 8. For example, a connecting platform is provided on the inner side surface of the third structure body 36, and the connecting member 8 fixedly connects the connecting platform with the annular seat 21, so as to realize the installation and fixation of the annular groove member 3. Preferably, the fourth structure body 37 is provided with an outer connection hole 373, and the third structure body 36 is provided with an inner connection hole 363. The positions of the inner connection hole 363 and the outer connection hole 373 correspond one by one, and in the axial direction of the annular seat 21, the inner diameter of the outer connection hole 373 is larger than the inner diameter of the inner connection hole 363. In this way, the fourth structure body 37 is allowed to adjust its position relative to the third structure body 36 along its axial direction.

[0059] A third annular groove is machined on the outer side surface of the third structure body 36. The outer side surfaces of the upper and lower groove walls of the third annular groove respectively form a third sealing surface 361 and a third gas outlet guiding surface 362. A fourth annular groove is machined on the inner side surface of the fourth structure body 37. The inner side surfaces of the upper and lower groove walls of the fourth annular groove respectively form a fourth sealing surface 371 and a fourth gas outlet guiding surface 372. After the third structure body 36 and the fourth structure body 37 are sleeved and connected, the third annular groove and the fourth annular groove communicate to form a gas distribution cavity 31. The third sealing surface 361 and the fourth sealing surface 371 form a sealing butt joint surface group, and the third gas outlet guiding surface 362 and the fourth gas outlet guiding surface 372 form a gas outlet butt joint surface group. There is a gap between the third gas outlet guiding surface 362 and the fourth gas outlet guiding surface 372, which constitutes a gas outlet channel 5. By changing the relative positions of the fourth structure body 37 and the third structure body 36, the gas outlet flow rate of the gas outlet channel 5 can be adjusted. According to actual needs, a sealing member 7 can be provided between the third sealing surface 361 and the fourth sealing surface 371 as required.

[0060] As a third embodiment of the annular groove member 3, please refer to Figure 6; The annular groove member 3 includes a fifth structure body 34 and a sixth structure body 35, and the fifth structure body 34 is also sleeved on the outer side of the sixth structure body 35. Different from the second embodiment, a fifth annular groove is machined on the inner side surface of the fifth structure body 34. In the radial direction of the fifth structure body 34, the upper groove wall of the fifth annular groove extends inward toward the lower groove wall, that is, the inner diameter of the upper groove wall is smaller than that of the lower groove wall; for the fifth structure body 34, the inner side surface of the lower groove wall of the fifth annular groove constitutes a fifth air outlet guiding surface 342, and the groove surface of the upper groove wall of the fifth annular groove constitutes a fifth sealing surface 341. The sixth structure body 35 extends between the fifth air outlet guiding surface 342 and the fifth sealing surface 341, and a sixth air outlet guiding surface 352 and a sixth sealing surface 351 are respectively formed. Since the sixth structure body 35 has no annular groove structure, the structure is simplified and it is easier to machine than the second embodiment. The cross-section of the sixth structure body 35 can be Figure 6 similar to the "L" shape shown, that is, the sixth air outlet guiding surface 352 is the surface where the sixth structure body 35 extends radially and approaches the fifth air outlet guiding surface 342, and the sixth sealing surface 351 is the surface where the sixth structure body 35 extends axially and approaches the fifth sealing surface 341; the cross-section of the sixth structure body 35 can also be arc-shaped or any other shape, as long as a gas distribution cavity 31 is formed by the fifth annular groove after the fifth structure body 34 and the sixth structure body 35 are butted. The sixth sealing surface 351 and the fifth sealing surface 341 form a sealing butt joint surface group, and a seal 7 can be arranged between them; the fifth air outlet guiding surface 342 and the sixth air outlet guiding surface 352 form an air outlet butt joint surface group, and there is a gap between them, constituting an air outlet channel 5.

[0061] Furthermore, a gasket 6 is arranged between the sixth sealing surface 351 and the fifth sealing surface 341. After the connecting member 8 passes through the sixth structure body 35 and the fifth structure body 34 from bottom to top in sequence, it is threadedly connected to the lower end surface of the ring seat 21; the annular groove member 3 is convenient for disassembly and assembly, and the air outlet flow rate of the air outlet channel 5 can be adjusted by changing the thickness of the gasket 6.

[0062] According to actual needs, in the two structure bodies of the annular groove member 3, one of them can be integrated on the ring seat 21, that is, the ring seat 21 and one of the structure bodies of the annular groove member 3 are of an integral structure, or the ring seat 21 is a structure body constituting the annular groove member 3. This structural method makes full use of the own structure of the ring seat 21, one less structure body can be used, the overall structure of the automatic cleaning device can be greatly simplified, the space required for device installation can be reduced, and it is beneficial to equip and apply the annular groove member 3 on different vulcanizers.

[0063] As the fourth embodiment of the annular groove member 3, please refer to Figure 7; The annular groove member 3 includes an annular seventh structure body 38. The outer side surface of the annular seat 21 has an outwardly convex annular platform 213. The seventh structure body 38 is located below the annular platform 213 and is fixed to the connection seat 214 of the annular seat 21 through the connecting member 8. The connection seats 214 are dot-shaped distributed on the outer side surface of the annular seat 21, and the number can be set as required, for example, 6 - 8.

[0064] The lower end surface of the annular platform 213 is partially concave, forming an annular eighth air outlet guiding surface 212 that slopes downward and outward. A partial outer side surface of the annular seat 21 constitutes an annular eighth sealing surface 211; the seventh structure body 38 extends between the eighth air outlet guiding surface 212 and the eighth sealing surface 211. The end surface extending to the eighth air outlet guiding surface 212 constitutes the seventh air outlet guiding surface 382, and the end surface extending to the eighth sealing surface 211 constitutes the seventh sealing surface 381. After the seventh structure body 38 and the annular seat 21 are connected, the two enclose an annular gas distribution cavity 31. The seventh sealing surface 381 and the eighth sealing surface 211 form a sealing docking surface group, and the two are docked and sealed; the eighth air outlet guiding surface 212 and the seventh air outlet guiding surface 382 form an air outlet docking surface group, and there is a gap between the two, forming an air outlet channel 5. Among them, the cross-section of the seventh structure body 38 is L-shaped, having an axial ring body extending along the axis of the annular seat 21 and a radial ring body extending along the radius of the annular seat 21; the upper end surface of the axial ring body is the seventh air outlet guiding surface 382, and the inner side surface of the radial ring body is the seventh sealing surface 381.

[0065] The seventh structure body 38 can be adjusted axially on the annular seat 21, so as to adjust the gap size between the eighth air outlet guiding surface 212 and the seventh air outlet guiding surface 382; at this time, the connecting member 8 is preferably threadedly connected to the annular seat 21, and a gasket 6 is provided between the connection seat 214 and the seventh structure body 38, and different thickness gaskets 6 can be replaced when it is necessary to adjust the air outlet flow rate.

[0066] As the fifth embodiment of the annular groove member 3, please refer to Figure 8; One of the structures of the annular groove member 3 is integrated with the annular seat 21 to form an integral structure. The lower end surface of the annular seat 21 is provided with a sixth annular groove; the annular groove member 3 further includes an eighth structure 39, and the eighth structure 39 is located at the opening of the sixth annular groove and extends between the inner groove wall and the outer groove wall of the sixth annular groove; the eighth structure 39 is sealed and butted with the groove surface of the inner groove wall of the sixth annular groove, and the two butting surfaces form a sealed butting surface group; there is a gap between the eighth structure 39 and the groove surface of the outer groove wall of the sixth annular groove to form an air outlet channel 5, and the two butting surfaces form an air outlet butting surface group. In order to fix the eighth structure 39, a plurality of pads 215 are fixed at the bottom of the sixth annular groove, and the plurality of pads 215 are distributed in a dot shape at the bottom of the sixth annular groove without affecting the air flow. The eighth structure 39 is fixedly connected to the pads 215, preferably by threaded connection, and is detachable; a gasket 6 is provided between the pads 215 and the eighth structure 39. A seal 7 is provided between the two butting surfaces of the sealed butting surface group to improve the sealing effect.

[0067] As the sixth embodiment of the annular groove member 3, please refer to Figure 9 ; The outer side surface of the annular seat 21 is provided with a seventh annular groove, and the seventh annular groove is stepped, with a larger cross-section of the outer groove and a smaller cross-section of the inner groove. The annular groove member 3 includes a ninth structure 310, and the ninth structure 310 is located in the seventh annular groove and at the opening of the seventh annular groove. The ninth structure 310 extends between the upper and lower groove walls of the outer groove; the ninth structure 310 is hermetically connected to the bottom wall of the outer groove, and the two butting surfaces form a sealed butting surface group. There is a gap between the ninth structure 310 and the groove surface of the lower groove wall of the outer groove to form an air outlet channel 5, and the two butting surfaces correspondingly form an air outlet butting surface group. The seventh structure 38 is fixed on the bottom wall of the outer groove of the seventh annular groove. Preferably, the ninth structure 310 can move relative to the annular seat 21 along the axial direction of the annular seat 21, so as to adjust the air outlet flow rate of the air outlet channel 5; for example, a plurality of threaded holes are provided on the bottom wall of the outer groove of the seventh annular groove, and the plurality of threaded holes are evenly distributed in the circumferential direction of the annular seat 21. The ninth structure 310 is provided with adjustment holes, and the positions of the adjustment holes correspond to the positions of the threaded holes; the diameter of the adjustment holes is larger than that of the threaded holes, especially the dimension of the adjustment holes in the axial direction of the annular seat 21 should be larger than that of the threaded holes; thus, the ninth structure 310 is allowed to move up or down.

[0068] As another implementation manner of the air outlet structure, please refer to Figures 10-14 , the air outlet structure is a plurality of air nozzles 9 provided on the side wall of the gas distribution cavity 31, and the plurality of air nozzles 9 are distributed in the entire circumferential direction of the gas distribution cavity 31; preferably, the plurality of air nozzles 9 are evenly distributed in the entire circumferential direction of the gas distribution cavity 31, so that the air flow distribution on the lower mold 1 is uniform and the cleaning effect is consistent.

[0069] Please refer to Figure 10, which is the seventh embodiment of the annular groove member 3; the annular groove member 3 includes a tenth structure body 311 and an eleventh structure body 312; both the tenth structure body 311 and the eleventh structure body 312 are annular, the eleventh structure body 312 is sleeved outside the tenth structure body 311, and after being hermetically butted, they are connected as a whole and fixed on the annular seat 21 through the connecting member 8. Among them, an eighth annular groove is provided on the outer side surface of the tenth structure body 311, and a ninth annular groove is provided on the inner side surface of the eleventh structure body 312; the eighth annular groove and the ninth annular groove communicate with each other to jointly form a sealed gas distribution cavity 31. The air nozzle 9 is fixedly installed on the lower side wall of the gas distribution cavity 31 and blows air obliquely downward and outward.

[0070] Please refer to Figure 11 , which is the eighth embodiment of the annular groove member 3; the annular groove member 3 includes a twelfth structure body 313 and a thirteenth structure body 314; both the thirteenth structure body 314 and the twelfth structure body 313 are annular, the thirteenth structure body 314 is sleeved outside the twelfth structure body 313, and after being fixedly and hermetically connected, the connecting member 8 sequentially penetrates through the twelfth structure body 313 and the thirteenth structure body 314 from bottom to top and is fixedly connected to the annular seat 21 to fix the annular groove member 3 on the annular seat 21. A tenth annular groove is provided on the inner side surface of the thirteenth structure body 314, and the upper groove wall of the tenth annular groove protrudes outward from its lower groove wall; the twelfth structure body 313 closes and seals the opening of the tenth annular groove, and a closed gas distribution cavity 31 is formed inside. The air nozzle 9 is fixedly installed on the bottom wall of the gas distribution cavity 31 and blows air obliquely downward and outward.

[0071] Please refer to Figure 12 , which is the ninth embodiment of the annular groove member 3; the annular groove member 3 includes a fourteenth structure body 315 and a fifteenth structure body 316; in the axial direction of the annular seat 21, the fourteenth structure body 315 and the fifteenth structure body 316 are stacked, and the fourteenth structure body 315 and the fifteenth structure body 316 are simultaneously fixed on the annular seat 21 through the connecting member 8. Both the fourteenth structure body 315 and the fifteenth structure body 316 are annular, an eleventh annular groove is provided on the lower end surface of the fourteenth structure body 315, and the fifteenth structure body 316 closes and seals the opening of the eleventh annular groove, and a closed gas distribution cavity 31 is formed inside. The air nozzle 9 is fixedly installed on the bottom wall of the gas distribution cavity 31 and blows air obliquely downward and outward.

[0072] Please refer to Figure 13, which is the tenth embodiment of the annular groove member 3; in this embodiment, one of the structures of the annular groove member 3 is integrated on the annular seat 21 and is an integral structure with the annular seat 21; a twelfth annular groove is provided on the lower end surface of the annular seat 21, and the annular groove member 3 further includes a sixteenth structure 317, and the sixteenth structure 317 is fixed on the annular seat 21 through a connecting member 8 to close and seal the opening of the twelfth annular groove, and a gas distribution cavity 31 is formed inside. The air nozzle 9 is fixedly installed on the bottom wall of the gas distribution cavity 31 and blows air obliquely downward and outward.

[0073] Please refer to Figure 14 , which is the eleventh embodiment of the annular groove member 3; the annular groove member 3 includes a seventeenth structure 319 and an eighteenth structure 318; both the seventeenth structure 319 and the eighteenth structure 318 are annular, and after being stacked up and down, they are fixed on the annular seat 21 through a connecting member 8; a thirteenth annular groove is provided on the upper end surface of the seventeenth structure 319, and the eighteenth structure 318 seals the opening of the thirteenth annular groove, so as to form a closed gas distribution cavity 31 between the seventeenth structure 319 and the eighteenth structure 318. The air nozzle 9 is fixedly installed on the bottom wall of the gas distribution cavity 31 and blows air obliquely downward and outward.

[0074] In the above structure, a seal 7 can be selectively arranged between the two butting surfaces that are hermetically connected; the seal 7 can be selected as a sealing ring, such as a rubber sealing ring.

[0075] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic cleaning device for the lower mold of a vulcanizer, characterized in that, Comprising at least one annular groove member (3), the annular groove member (3) comprising two structural bodies, at least one of the structural bodies having an annular groove provided on its butt joint surface; the two structural bodies are butted and the annular groove forms an annular gas distribution chamber (31); The gas distribution chamber (31) is communicated with an air outlet structure, and the gas in the gas distribution chamber (31) blows out obliquely downward in the entire circumferential direction of the gas distribution chamber (31) through the air outlet structure.

2. The automatic cleaning device for the lower mold of a vulcanizer according to claim 1, characterized in that, The air outlet structure comprises an air outlet channel (5) provided on the side wall of the gas distribution chamber (31), and the air outlet channel (5) extends in the entire circumferential direction of the gas distribution chamber (31).

3. The automatic cleaning device for the lower die of the vulcanizer according to claim 2, characterized in that, There is a sealed butt joint surface group and an air outlet butt joint surface group between the two structural bodies. The two butt joint surfaces in the sealed butt joint surface group are sealed and connected, and there is a gap between the two butt joint surfaces of the air outlet butt joint surface group to form the air outlet channel (5).

4. The automatic cleaning device for the lower die of a vulcanizer according to claim 3, characterized in that, A seal (7) is provided between the two butt joint surfaces of the sealed butt joint surface group; And / or, a gasket (6) is provided between the two butt joint surfaces of the sealed butt joint surface group; And / or, the two structural bodies are detachably connected.

5. The automatic cleaning device for the lower die of a vulcanizer according to claim 1, characterized in that, Axially of the gas distribution chamber (31), the two structural bodies of the annular groove member (3) are arranged side by side up and down; Or, of the two structural bodies of the annular groove member (3), one of the structural bodies is sleeved outside the other structural body.

6. The automatic cleaning device for the lower mold of a vulcanizer according to claim 1, characterized in that, Of the two structural bodies of the annular groove member (3), one of the structural bodies is a ring seat (21).

7. The automatic cleaning device for the lower mold of a vulcanizer according to claim 1, wherein, The air outlet structure comprises a plurality of air nozzles (9), and the plurality of air nozzles (9) are distributed in the entire circumferential direction of the gas distribution chamber (31).

8. The automatic cleaning device for the lower die of a vulcanizer according to claim 1, characterized in that, The air outlet structure is located outside or below the gas distribution chamber (31).

9. The automatic cleaning device for the lower die of a vulcanizer according to claim 1, characterized in that, The gas distribution chamber (31) is communicated with a gas supply mechanism (4); the gas supply mechanism (4) comprises a connecting pipe (41), the output end of the connecting pipe (41) is communicated with the gas distribution chamber (31), and the input end is connected to an external gas source through an electromagnetic valve (42).

10. Vulcanizer, comprising a lower mold (1) and a support mechanism (2); characterized in that, It further comprises an automatic cleaning device for the lower mold of a vulcanizer according to any one of claims 1-9, and the automatic cleaning device for the lower mold of the vulcanizer rises and falls along with the ring seat (21) of the support mechanism (2).

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