Gantry structure tire mold offline laser cleaning device

Abstract

The invention discloses a gantry structure tire mold offline laser cleaning device which comprises two opposite first fixing frames, a movable cross beam is arranged at the upper ends of the first fixing frames, cleaning arms are arranged on the two sides of the lower end of the movable cross beam, tire mold turnover devices are arranged at the lower ends of the cleaning arms, and the movable cross beam comprises cross beams. A first rotating motor is arranged on the base at one end, a gear is arranged at the output end of the first rotating motor, the gear is connected with a rack in an assembled mode, sliding blocks are arranged at the two ends of the bottom of each base, and sliding rails are connected with the lower ends of the sliding blocks in an assembled mode; the product has the advantages that the structure is stable, movement is accurate, stable translation of the movable cross beam is achieved through combination of the opposite fixing frames and the movable cross beam in cooperation with gear and rack transmission and a sliding block and sliding rail structure, solid support is provided for the cleaning arm, it is ensured that the cleaning arm flexibly moves in the horizontal direction, and the cleaning range requirements of tire molds of different specifications are met.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of laser cleaning, and particularly relates to a gantry structure tire mold off-line laser cleaning device. BACKGROUND

[0002] In the tire manufacturing industry, the surface cleanliness of the tire mold, as a key production equipment, directly determines the quality and appearance of the tire product. During long-term use, the surface of the mold will gradually attach pollutants such as rubber residues, sulfides, oil stains, etc. If not cleaned in time, not only will it cause defects such as lack of glue and bulging on the surface of the tire, but also will shorten the service life of the mold and increase the production cost. Therefore, efficient and accurate tire mold cleaning operation is an important link to ensure the continuity and stability of tire production. At present, the mainstream tire mold cleaning method in the industry has obvious limitations: mechanical cleaning relies on physical friction methods such as steel wire brushes and sand blasting to remove stains, which can easily scratch or wear the precise lines on the mold surface, resulting in a decrease in mold precision, and the cleaning effect for complex cavities and fine lines is not good, and there are many cleaning dead angles; chemical cleaning uses strong acid, strong alkali and other corrosive agents to dissolve pollutants, which can achieve a certain degree of cleanliness, but the agents can corrode the mold base, shorten the service life of the mold, and the discharge of waste liquid will cause serious environmental pollution, which does not meet the development requirements of modern industrial green environmental protection, and after cleaning, complicated neutralization and rinsing processes are required, which is low in operation efficiency. SUMMARY

[0003] The purpose of the application is to solve the problem that the existing mechanical cleaning relies on physical friction such as steel wire brushes and sand blasting, which can easily scratch the precise lines on the mold surface, resulting in a decrease in precision and the existence of cleaning dead angles. The device uses a non-contact laser cleaning method, adjusts the mold to the best angle with a six-degree-of-freedom platform, and combines the flexible movement of the cleaning arm to cover complex cavities and fine lines, avoiding the problem of mechanical damage.

[0004] The application achieves the above-mentioned purpose through the following technical scheme: a gantry structure tire mold off-line laser cleaning device, comprising two first fixed frames in an opposite manner, a moving cross beam arranged at the upper end of the first fixed frame, a cleaning arm arranged at the lower end of the moving cross beam, a tire mold turnover device arranged at the lower end of the cleaning arm, the moving cross beam comprising a cross beam, the cross beam, triangular support frames arranged at the two ends of the bottom of the cross beam, bases arranged at the two ends of the bottom of the triangular support frames, a first rotating motor arranged on one of the bases, a gear arranged at the output end of the first rotating motor, a gear rack matched and connected with the gear, a sliding block arranged at the two ends of the bottom of the base, and a sliding rail matched and connected with the sliding block, through the arrangement of the opposite first fixed frame and the movable cross beam structure, combined with the gear and rack transmission and the sliding block and sliding rail cooperation, stable translation of the moving cross beam is realized, a stable support foundation is provided for the cleaning arm, and flexible movement of the cleaning arm in the horizontal direction is ensured, the cleaning range requirement of different specifications of tire molds is adapted, the overall structure layout is reasonable, and the bearing capacity is strong.

[0005] Further, the tire mold turnover device comprises four supporting legs, a circulating conveying line is arranged on the supporting legs, a plurality of auxiliary moving bases are arranged on the circulating conveying line, limiting and fixing structures are arranged at the bottoms of the two sides of the circulating conveying line for limiting the auxiliary moving bases, and tire mold clamping devices are arranged on the auxiliary moving bases.

[0006] Further, the circulating conveying line comprises a circulating line bottom disc, a guide rail is arranged on the circulating line bottom disc, a chain is arranged on the inner side of the guide rail, fixed plates are arranged on the inner sides of the four corners of the circulating line bottom disc, second rotating motors are arranged at the bottoms of the fixed plates, sprockets are arranged at the output ends of the second rotating motors, the circulating conveying line is driven through the meshing transmission of the chain and the sprocket, the circulating movement of the auxiliary moving base is realized, the transmission is stable, the power transmission efficiency is high, the second rotating motors and the sprockets arranged at the four corners form a closed-loop transmission, the running synchronization of the conveying line is good, the jamming phenomenon is reduced, and the continuous conveying requirement of batch tire molds is adapted.

[0007] Further, the auxiliary moving base comprises a circulating line fixing plate, a plurality of U-shaped grooves are arranged equidistantly on both sides of the circulating line fixing plate, a guide rail is arranged in the U-shaped groove, the guide rail is connected with the guide rail in assembly, a compression spring is arranged on both sides of the guide rail, the compression spring is movable in the U-shaped groove and is used for correcting the guide rail, a locking rack structure is arranged on one side end of the circulating line fixing plate, a clamping groove fixing block is arranged at the other side of the circulating line fixing plate opposite to the locking rack structure, and a bearing bottom plate is arranged on the upper end of the circulating line fixing plate. The guide rail and the compression spring are arranged in the U-shaped groove of the auxiliary moving base, the guide rail is matched with the circulating conveying line guide rail to realize accurate guidance, the compression spring can automatically correct the position deviation of the guide rail, vibration and wear in the moving process are reduced, and smooth movement of the base is ensured. The locking rack structure and the clamping groove fixing block are arranged, chain connection and limiting fixation are facilitated, and moving stability is improved.

[0008] Further, the limiting fixation structure comprises two overturning bearing blocks, an overturning rod is arranged between the bearing blocks, a telescopic cylinder is arranged on the overturning rod, one end of the telescopic cylinder is fixedly connected with the circulating line chassis, a clamping head is arranged on the upper end of the overturning rod and is used for limiting action of the clamping groove fixing block. When the auxiliary moving base moves to a corresponding position, the overturning rod is pushed and overturned through the action of the telescopic cylinder, the clamping head is overturned into the clamping groove fixing block, and limiting fixation is realized. The limiting fixation structure drives the overturning rod to overturn through the telescopic cylinder, the clamping head is accurately matched with the clamping groove fixing block, quick limiting and unlocking of the auxiliary moving base are realized, operation is convenient and firm fixation is achieved. The base is prevented from shaking in the cleaning process, the position of the tire mold is ensured to be stable, the precision and consistency of laser cleaning are improved.

[0009] Further, the tire mold clamping device comprises a six-degree-of-freedom platform, a second fixing frame is fixedly connected to the six-degree-of-freedom platform, a limiting rod is arranged on one side of the upper end of the second fixing frame, a telescopic cylinder clamping device is arranged at one side end of the second fixing frame, a plurality of tire mold guide devices are arranged around the upper end of the second fixing frame, and a tire mold is arranged on the tire mold guide device. The six-degree-of-freedom platform is adopted to adjust the posture of the second fixing frame, the telescopic cylinder clamping device and the limiting rod are matched, and different sizes of tire molds can be stably clamped. The tire mold guide device assists in quick positioning and moving of the mold, manual adjustment time is reduced, the mold can be adjusted to an optimal cleaning angle through the six-degree-of-freedom platform, and cleaning coverage is improved.

[0010] Further, the six-degree-of-freedom platform comprises a lower mounting plate and an upper mounting plate, the lower mounting plate is fixedly connected with the bearing bottom plate, the upper mounting plate is fixedly connected with the bottom of the second fixed frame, six hydraulic supporting rods are arranged between the lower mounting plate and the upper mounting plate, the two ends of the hydraulic supporting rod are respectively hinged with the lower mounting plate and the upper mounting plate through universal joints, and the spatial angle of the fixed frame is adjusted, the six-degree-of-freedom platform is connected with the universal joint through the six hydraulic supporting rods, the multi-angle flexible adjustment of the fixed frame in space can be realized, the adjustment range is wide and the precision is high; the complex curved surface structure of the tire mold can be adapted, the best distance and angle between the laser cleaning head and the mold surface are ensured, the cleaning dead angle is reduced, and the cleaning quality is improved.

[0011] Further, the chain is sleeved outside the four sprockets and is engaged with the sprockets, the locking rack structure is fixedly connected with the chain through bolts, and the rack is fixed on the upper end face of the first fixed frame and is engaged with the gear; the engagement connection of the chain and the sprocket and the fixation of the locking rack structure and the chain ensure that the auxiliary moving base moves synchronously with the chain, and the transmission is reliable; the rack and the gear are engaged and matched with the sliding block sliding rail, the stable driving of the moving beam is realized, the moving precision of the cleaning arm is ensured, and the operation stability and the synergy of the overall device are improved.

[0012] Further, the tire mold guiding device is installed on the upper end of the second fixed frame through a bearing seat, a third rotating motor is arranged on one side of the upper end of the bearing seat, and a rotating roller is arranged at the output end of the third rotating motor; the tire mold guiding device drives the rotating roller through the third rotating motor, can drive the tire mold to rotate, and cooperates with the cleaning arm to realize comprehensive cleaning in the circumferential direction of the mold; the bearing seat installation ensures the stable operation of the rotating roller, reduces the vibration in the rotating process of the mold, improves the cleaning uniformity, and reduces the labor intensity without manual mold overturning.

[0013] Compared with the prior art, the beneficial effects of the present application are: 1. Stable structure and accurate movement: through the combination of the vertical fixed frame and the movable beam, cooperating with the gear and rack transmission and the sliding block sliding rail structure, the stable translation of the moving beam is realized, the cleaning arm is provided with solid support, the flexible movement in the horizontal direction is ensured, the cleaning range requirement of different specifications of tire molds is adapted, and the overall carrying capacity is strong; 2. High automatic turnover efficiency: the tire mold turnover device adopts a circulating conveying line design, combines the chain and sprocket transmission and multiple auxiliary moving bases, realizes continuous turnover of the mold, and improves the operation continuity; the limiting and fixing structure drives the overturning rod through the telescopic cylinder, quickly completes the limiting and unlocking of the base, avoids displacement during cleaning, and guarantees the accuracy and overall efficiency; 3. Flexible adjustment ensures comprehensive cleaning: The six-degree-of-freedom platform realizes precise multi-angle adjustment of the fixed frame with the help of hydraulic support rods and universal joints, and adapts to complex curved surfaces of molds; the tire mold guiding device drives the rotating roller through a rotating motor, rotates the mold, and completes comprehensive cleaning in the circumferential direction with the cleaning arm, reducing dead angles and improving cleaning coverage and uniformity; 4. Stable and reliable operation: The guide rail of the auxiliary moving base cooperates with the compression spring to automatically correct position deviation, reduce movement vibration and wear; chain and sprocket meshing and locking rack fixation ensure synchronous and reliable transmission, reduce jamming phenomenon, and improve the stability and synergy of the overall operation of the device; 5. Reducing labor intensity and strong adaptability: Automatic turnover, clamping and rotating structure reduces manual adjustment and mold turning operation; telescopic cylinder clamping device cooperates with limiting rod to stably clamp molds of different sizes, and the flexible adjustment of the six-degree-of-freedom platform further improves the adaptability to diversified molds, reducing manual labor intensity; BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic diagram of the present application; Figure 2 is a schematic diagram of the moving beam of the present application; Figure 3 is a schematic diagram of the tire mold turnover device of the present application; Figure 4 is a schematic diagram of the circulating conveying line of the present application; Figure 5 is a schematic diagram of the auxiliary moving base of the present application; Figure 6 is a schematic diagram of the limiting and fixing structure of the present application; Figure 7 is a schematic diagram of the tire mold clamping device of the present application.

[0015] Figure 8 is a schematic diagram of the six-degree-of-freedom platform of the present application; Figure 9 is a schematic diagram of the tire mold guiding device of the present application; In the figure: 1 - first fixed frame, 2 - moving cross beam, 3 - cleaning arm, 4 - tire mold turnover device, 21 - cross beam, 22 - triangular support frame, 23 - base, 24 - first rotating motor, 25 - gear, 26 - rack, 27 - sliding block, 28 - sliding rail, 41 - support leg, 42 - circulating conveying line, 43 - auxiliary moving base, 45 - tire mold clamping device, 421 - circulating line chassis, 422 - guide rail, 423 - chain, 424 - fixed plate, 425 - second rotating motor, 426 - sprocket, 431 - circulating line fixed plate, 432 - U-shaped groove, 433 - guide rail, 434 - compression spring, 435 - locking rack structure, 436 - clamping groove fixed block, 437 - bearing bottom plate, 441 - overturning bearing block, 442 - overturning rod, 443 - telescopic cylinder, 444 - clamping head, 451 - six-degree-of-freedom platform, 452 - second fixed frame, 453 - limiting rod, 454 - telescopic cylinder clamping device, 455 - tire mold guide device, 456 - tire mold, 4511 - lower mounting plate, 4512 - upper mounting plate, 4513 - hydraulic support rod, 4514 - universal joint, 4551 - bearing seat, 4552 - third rotating motor, 4553 - rotating roller. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0017] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0018] Combination Figures 1-9As shown, a gantry structure tire mold line laser cleaning device, including two first fixed frame 1, present opposite, the first fixed frame 1 upper end is provided with moving crossbeam 2, moving crossbeam 2 lower end both sides are provided with cleaning arm 3, cleaning arm 3 lower end is provided with tire mold turnover device 4, moving crossbeam 2 includes crossbeam 21, crossbeam 21, crossbeam 21 bottom both ends are provided with triangular support frame 22, triangular support frame 22 bottom both ends are provided with base 23, one base 23 is provided with first rotating motor 24 at one end, the output end of first rotating motor 24 is provided with gear 25, gear 25 is matched with rack 26, the bottom of base 23 both ends are provided with sliding block 27, sliding block 27 lower end is matched with slide rail 28, by setting the opposite fixed frame and movable crossbeam structure, combined with gear and rack transmission and sliding block and slide rail cooperation, realize the stable translation of moving crossbeam, provide stable support foundation for cleaning arm, ensure the flexible movement of cleaning arm in horizontal direction, adapt to the cleaning range requirement of different specifications of tire mold, the overall structure layout is reasonable, and the bearing capacity is strong.

[0019] Among them, the tire mold turnover device 4 includes four supporting legs 41, the supporting legs 41 are provided with a circulating conveying line 42, a plurality of auxiliary moving bases 43 are arranged on the circulating conveying line 42, limiting fixed structures 44 are arranged at the bottom of the circulating conveying line 42 for limiting the auxiliary moving bases 43, tire mold clamping devices 45 are arranged on the auxiliary moving bases 43, the circulating conveying line design is adopted for the tire mold turnover device, and the continuous turnover of the tire mold is realized by cooperating with the plurality of auxiliary moving bases, so that the continuity and automation degree of the cleaning operation are improved; the limiting fixed structure can accurately fix the auxiliary moving base, avoid the displacement of the mold during cleaning, ensure the cleaning accuracy, and improve the overall operation efficiency.

[0020] The circulating conveying line 42 includes a circulating line bottom plate 421, a guide rail 422 is arranged on the circulating line bottom plate 421, a chain 423 is arranged on the inner side of the guide rail 422, fixed plates 424 are arranged on the inner sides of the four corners of the circulating line bottom plate 421, second rotating motors 425 are arranged on the bottom of the fixed plates 424, sprockets 426 are arranged on the output ends of the second rotating motors 425, the circulating conveying line is driven by the meshing transmission of the chain and the sprocket, the auxiliary moving base is moved in a circulating manner, the transmission is stable and the power transmission efficiency is high; the rotating motors and the sprockets arranged at the four corners form a closed-loop transmission, ensuring good synchronization of the conveying line operation, reducing the jamming phenomenon, and being suitable for the continuous conveying requirement of batch tire molds.

[0021] The auxiliary moving base 43 comprises a circulating line fixing plate 431, a plurality of U-shaped grooves 432 are arranged on the two sides of the circulating line fixing plate 431 at equal intervals, a guide rail 433 is arranged in the U-shaped groove 432, the guide rail 433 is connected with the guide rail 422 in a matched mode, a compression spring 434 is arranged on the two sides of the guide rail 433, the compression spring 434 is movable in the U-shaped groove 432 and is used for correcting the guide rail 433, a locking rack structure 435 is arranged on one side of the circulating line fixing plate 431, a clamping groove fixing block 436 is arranged on the other side of the circulating line fixing plate 431, a bearing bottom plate 437 is arranged on the upper end of the circulating line fixing plate 431, the guide rail and the compression spring are arranged in the U-shaped groove of the auxiliary moving base, the guide rail is matched with the circulating conveying line guide rail to realize accurate guidance, the compression spring can automatically correct the position deviation of the guide rail, vibration and wear in the moving process are reduced, and smooth movement of the base is ensured; the locking rack structure and the clamping groove fixing block are arranged, chain connection and limiting fixation are facilitated, and moving stability is improved.

[0022] The limiting fixing structure 44 comprises two overturning bearing blocks 441, an overturning rod 442 is arranged between the bearing blocks 441, an extension cylinder 443 is arranged on the overturning rod 442, one end of the extension cylinder 443 is fixedly connected with the circulating line bottom plate 421, a clamping head 444 is arranged on the upper end of the overturning rod 442 and is used for limiting action of the clamping groove fixing block 436, when the auxiliary moving base 43 moves to a corresponding position, the overturning rod 442 is pushed and overturned by the extension cylinder 443, the clamping head 444 is overturned into the clamping groove fixing block 436, and limiting fixation is realized, which facilitates subsequent cleaning work, the limiting fixing structure drives the overturning rod to overturn through the extension cylinder, the clamping head is accurately matched with the clamping groove fixing block, rapid limiting and unlocking of the auxiliary moving base are realized, operation is convenient and firm fixation is achieved; base shaking in the cleaning process is avoided, the position of the tire mold is stable, the precision and consistency of laser cleaning are improved.

[0023] The tire mold clamping device 45 comprises a six-degree-of-freedom platform 451, a second fixing frame 452 is fixedly connected to the six-degree-of-freedom platform 451, a limiting rod 453 is arranged on one side of the upper end of the second fixing frame 452, an extension cylinder clamping device 454 is arranged on one side of the second fixing frame 452, a plurality of tire mold guide devices 455 are arranged around the upper end of the second fixing frame 452, a tire mold 456 is arranged on the tire mold guide device 455, the tire mold clamping device adjusts the posture of the fixing frame by using the six-degree-of-freedom platform, cooperates with the extension cylinder clamping device and the limiting rod, and can stably clamp tire molds of different sizes; the tire mold guide device assists in rapid positioning and moving of the mold, manual adjustment time is reduced, the mold can be adjusted to the best cleaning angle by the six-degree-of-freedom platform, and cleaning coverage is improved.

[0024] The six-degree-of-freedom platform 451 comprises a lower mounting plate 4511 fixedly connected with the bearing bottom plate 437 and an upper mounting plate 4512 fixedly connected with the bottom of the second fixing frame 452, six hydraulic supporting rods 4513 are arranged between the lower mounting plate 4511 and the upper mounting plate 4512, the two ends of the hydraulic supporting rod 4513 are respectively hinged with the lower mounting plate 4511 and the upper mounting plate 4512 through universal joints 4514, and the spatial angle of the second fixing frame 452 is adjusted, the six-degree-of-freedom platform is connected through the six hydraulic supporting rods and the universal joints, the fixing frame can be flexibly adjusted at multiple angles in space, the adjustment range is wide and the precision is high, the complex curved surface structure of the tire mold can be adapted, the optimal distance and angle between the laser cleaning head and the mold surface are ensured, the dead angle of cleaning is reduced, and the cleaning quality is improved.

[0025] The chain 423 is sleeved outside the four sprockets 426 and is engaged with the sprockets 426, the locking rack structure 435 is fixedly connected with the chain 423 through bolts, the rack 26 is fixed to the upper end face of the first fixing frame 1 and is engaged with the gear 25, and the engagement connection of the chain and the sprockets and the fixation of the locking rack structure and the chain ensure that the auxiliary moving base moves synchronously with the chain, and the transmission is reliable; the rack and the gear are engaged and matched with the sliding block sliding rail, the stable driving of the moving beam is realized, the moving precision of the cleaning arm is ensured, and the operation stability and the collaboration of the overall device are improved.

[0026] The tire mold guiding device 455 is installed on the upper end of the second fixing frame 452 through a bearing seat 4551, a third rotating motor 4552 is arranged on one side of the upper end of the bearing seat 4551, a rotating roller 4553 is arranged at the output end of the third rotating motor 4552, the tire mold guiding device drives the rotating roller through the rotating motor, can drive the tire mold to rotate, and realizes the comprehensive cleaning of the mold in the circumferential direction in cooperation with the cleaning arm; the bearing seat ensures the stable operation of the rotating roller, reduces the vibration in the rotating process of the mold, improves the cleaning uniformity, and reduces the labor intensity without manual overturning of the mold.

[0027] Working principle: Place the tire mold on the tire mold clamping device of the auxiliary moving base. Under the action of the tire mold guiding device, the mold is quickly positioned, and then the telescopic cylinder clamping device cooperates with the limiting rod to stably clamp the mold of different sizes. At this time, the guide rail of the auxiliary moving base is accurately matched with the guide rail of the circulating conveying line, the position deviation of the guide rail is automatically corrected by the compression spring in the U-shaped groove, the vibration and wear in the moving process are reduced, and the movement of the base is smooth. Then, the circulating conveying line starts to work. The rotating motor of the four-corner drives the sprocket to rotate, the chain is engaged with the sprocket to drive, and the auxiliary moving base is driven to move along the guide rail due to the bolted connection of the locking rack structure and the chain. When the auxiliary moving base moves to the designated cleaning position, the limiting and fixing structure is started. The telescopic cylinder pushes the turnover rod to turn over, and the clamping head is turned over to the clamping groove fixing block of the auxiliary moving base to be quickly limited and fixed, so as to avoid the shaking of the base during cleaning and ensure the stable position of the tire mold. Subsequently, the moving cross beam drives the cleaning arm to move to the working position, the rotating motor drives the gear to rotate, the gear is engaged with the rack fixed on the upper end surface of the first fixed frame, and the slider at the bottom of the base slides on the slide rail. Through the gear and rack transmission and the cooperation of the slider and the slide rail, the stable translation of the moving cross beam is realized, so that the cleaning arm can be flexibly moved in the horizontal direction to adapt to the cleaning range requirements of different specifications of tire molds. During the cleaning process, the six-degree-of-freedom platform plays an important role. The lower mounting plate is fixedly connected with the bearing bottom plate, and the upper mounting plate is fixedly connected with the bottom of the fixed frame. Through the cooperation of the six hydraulic supporting rods and the universal joint, the spatial angle of the fixed frame is adjusted, so that the mold can be adjusted to the best cleaning angle. At the same time, the rotating motor of the tire mold guiding device drives the rotating roller to rotate, and cooperates with the cleaning arm to realize the comprehensive cleaning of the mold in the circumferential direction, so as to ensure that the laser cleaning head and the mold surface maintain the best distance and angle, reduce the cleaning dead angle, and improve the cleaning coverage and quality. When the cleaning work is completed, the telescopic cylinder of the limiting and fixing structure is reset to drive the turnover rod to turn over, and the clamping head is separated from the clamping groove fixing block to release the fixing of the auxiliary moving base. The auxiliary moving base continues to move under the driving of the circulating conveying line, and the cleaned mold is conveyed to the next link, and the new mold to be cleaned is moved to the cleaning position with other auxiliary moving bases, and the next round of cleaning operation is started, so as to realize the continuous turnover cleaning of the tire mold and improve the continuity and automation degree of the operation.

[0028] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0029] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A gantry-structure tire mold offline laser cleaning device, comprising two first fixing frames (1) in an opposing configuration, characterized in that: The first fixed frame (1) is provided with a movable crossbeam (2) at the upper end. Cleaning arms (3) are provided on both sides of the lower end of the movable crossbeam (2). A tire mold turnover device (4) is provided at the lower end of the cleaning arm (3). The movable crossbeam (2) includes a crossbeam (21). A triangular support frame (22) is provided at both ends of the bottom of the crossbeam (21). A base (23) is provided at both ends of the bottom of the triangular support frame (22). A first rotating motor (24) is provided on one of the bases (23). A gear (25) is provided at the output end of the first rotating motor (24). A rack (26) is connected to the gear (25). A slider (27) is provided at both ends of the bottom of the base (23). A slide rail (28) is connected to the lower end of the slider (27).

2. The offline laser cleaning device for gantry structure tire molds according to claim 1, characterized in that: The tire mold turnover device (4) includes four support legs (41), a circulating conveyor line (42) is provided on the support legs (41), a number of auxiliary moving bases (43) are arranged on the circulating conveyor line (42), a limit fixing structure (44) is provided on both sides of the bottom of the circulating conveyor line (42) to limit the auxiliary moving bases (43), and a tire mold clamping device (45) is provided on each of the auxiliary moving bases (43).

3. The offline laser cleaning device for gantry structure tire molds according to claim 2, characterized in that: The circulating conveyor line (42) includes a circulating line chassis (421), a guide rail (422) is provided on the circulating line chassis (421), a chain (423) is provided on the inner side of the guide rail (422), a fixing plate (424) is provided on the inner side of each of the four corners of the circulating line chassis (421), a second rotating motor (425) is provided at the bottom of each fixing plate (424), and a sprocket (426) is provided at the output end of each second rotating motor (425).

4. The offline laser cleaning device for gantry structure tire molds according to claim 3, characterized in that: The auxiliary moving base (43) includes a circulating line fixing plate (431). Several U-shaped grooves (432) are arranged equidistantly on both sides of the circulating line fixing plate (431). A guide rail (433) is provided inside the U-shaped groove (432). The guide rail (433) is assembled and connected with the guide rail (422). A compression spring (434) is provided on both sides of the guide rail (433). The compression spring (434) moves in the U-shaped groove (432) and is used for the correction of the guide rail (433). A locking rack structure (435) is provided on one side of the circulating line fixing plate (431). A locking slot fixing block (436) is provided on the opposite side of the circulating line fixing plate (431). A bearing base plate (437) is provided on the upper end of the circulating line fixing plate (431).

5. The offline laser cleaning device for gantry structure tire molds according to claim 4, characterized in that: The limiting and fixing structure (44) includes two flip bearing blocks (441), and a flip rod (442) is provided between the bearing blocks (441). A telescopic cylinder (443) is provided on the flip rod (442). One end of the telescopic cylinder (443) is fixedly connected to the circulating line chassis (421). A locking head (444) is provided at the upper end of the flip rod (442) for limiting the position with the locking slot fixing block (436). When the auxiliary moving base (43) moves to the corresponding position, the flip rod (442) is pushed and flipped by the telescopic cylinder (443), and the locking head (444) is flipped into the locking slot fixing block (436) for limiting and fixing, which facilitates the subsequent cleaning work.

6. The offline laser cleaning device for gantry structure tire molds according to claim 5, characterized in that: The tire mold clamping device (45) includes a six-degree-of-freedom platform (451), a second fixed frame (452) is fixedly connected to the six-degree-of-freedom platform (451), a limit rod (453) is provided on one side of the upper end of the second fixed frame (452), a telescopic cylinder clamping device (454) is provided on one side of the second fixed frame (452), and a plurality of tire mold guiding devices (455) are provided around the upper end of the second fixed frame (452), and a tire mold (456) is provided on the tire mold guiding device (455).

7. The offline laser cleaning device for gantry structure tire molds according to claim 6, characterized in that: The six-degree-of-freedom platform (451) includes a lower mounting plate (4511) and an upper mounting plate (4512). The lower mounting plate (4511) is fixedly connected to the bearing base plate (437), and the upper mounting plate (4512) is fixedly connected to the bottom of the second fixed frame (452). Six hydraulic support rods (4513) are provided between the lower mounting plate (4511) and the upper mounting plate (4512). The two ends of the hydraulic support rods (4513) are respectively hinged to the lower mounting plate (4511) and the upper mounting plate (4512) through universal joints (4514) to adjust the spatial angle of the second fixed frame (452).

8. The offline laser cleaning device for gantry structure tire molds according to claim 7, characterized in that: The chain (423) is sleeved on the outside of the four sprockets (426) and meshes with them. The locking rack structure (435) is fixedly connected to the chain (423) by bolts. The rack (26) is fixed to the upper end face of the first fixing frame (1) and meshes with the gear (25).

9. The offline laser cleaning device for gantry structure tire molds according to claim 8, characterized in that: The tire mold guide device (455) is mounted on the upper end of the second fixed frame (452) via a bearing seat (4551). A third rotating motor (4552) is provided on one side of the upper end of the bearing seat (4551), and a rotating roller (4553) is provided at the output end of the third rotating motor (4552).

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