Multi-station tire storage apparatus

Abstract

The application relates to the technical field of tire processing equipment, in particular to a multi-station tire storage device which comprises a device frame, a pushing-out mechanism and a tire storage mechanism, the left and right sides of the device frame are fixedly connected with support plates which are uniformly distributed on the upper and lower surfaces, the pushing-out mechanism comprises sliding rails I, support wheels and a placing frame, the sliding rails I are fixedly connected to the upper surfaces of the support plates respectively, the upper ends of the sliding rails I are slidably connected with sliding blocks I respectively, the placing frame is fixedly connected between every two adjacent sliding blocks I on the left and right sides respectively, the left and right sides of the placing frame are fixedly connected with support wheels which are uniformly distributed, the outer curved surfaces of the support wheels are slidably connected with the upper surfaces of the adjacent support plates, the tire storage mechanism comprises a tire storage frame, a support frame, a placing ring, a top plate and a rotating frame, and the tire storage frame is fixedly connected to the left and right sides of the front end of the placing frame respectively. The multi-station tire storage device disclosed by the application has better stability due to the pull-out type storage frame, the tire storage position is provided with the top plate, and the protection effect on the tires is better.

Description

Technical Field

[0001] This invention relates to the field of tire processing equipment technology, specifically a multi-station tire storage device. Background Technology

[0002] In the increasingly automated tire vulcanization production process, the tire sizing vulcanizing machine itself has already achieved a relatively high level of automation. To extend the automation of the vulcanization stage, some rubber machinery manufacturers have introduced automated green tire conveying solutions. Currently, in mainstream automated green tire conveying solutions, green tires are conveyed from above the vulcanizing machine to the front end. The matching tire storage devices include single-station, frame-type, and belt-driven horizontal conveyor systems. As an intermediate transfer mechanism between the front-end process and the tire sizing vulcanizing machine, increasing the number of stations in the tire storage device significantly reduces manual labor and improves the efficiency of the logistics system.

[0003] Compared to rotary tire storage devices, frame-type tire storage devices can transfer more tires at a time. In a current technology, a frame-type tire storage device can rotate. After placing one layer of tires, the upper frame is rotated down. However, the rotating frame is hinged by a pivot, which is prone to play, sagging, and shaking under long-term heavy loads. When the rotating frame is tilted down, the center of gravity shifts, resulting in a slight wobbling sensation, or even jamming when the weight is uneven, indicating poor stability. Furthermore, the tires are placed on only one plane, with no protection for the tire sidewalls. Over a long period of time, the tire sidewalls may slightly collapse. Therefore, we propose a multi-station tire storage device. Summary of the Invention

[0004] This invention provides a multi-position tire storage device. The pull-out storage rack provides better stability, and the top plate at the tire storage position provides better tire protection.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-station tire storage device, comprising a device frame, an ejection mechanism, and a tire storage mechanism; The equipment frame is fixedly connected to support plates that are evenly distributed vertically on both the left and right sides; The launching mechanism includes a slide rail, support wheels, and a placement frame. The slide rail is fixedly connected to the upper surface of the support plate. The upper end of each slide rail is slidably connected to a slider. The placement frame is fixedly connected between two adjacent sliders. The left and right sides of the placement frame are fixedly connected to evenly distributed support wheels. The outer arc surface of each support wheel is slidably connected to the upper surface of the adjacent support plate. The tire storage mechanism includes a tire storage rack, a support frame, a placement ring, a top plate, and a rotating frame. The tire storage rack is fixedly connected to the left and right sides of the front end of the placement frame. Eight evenly distributed rotating frames are fixedly connected to the upper end of each tire storage rack. The top plate is rotatably connected to the upper end of each rotating frame. The support frame is fixedly connected inside each tire storage rack. The placement ring is fixedly connected to the upper surface of each support frame. The pull-out storage rack provides better stability, and the top plate at the tire storage position provides better tire protection.

[0006] Furthermore, the ejection mechanism also includes proximity switches, which are fixedly connected to the front end of the upper surface of the support plate on the left side. Magnets are fixedly connected to both the front and rear ends of the left side of the placement rack. The proximity switches are used in conjunction with two magnets of the same height to detect the position of the placement rack.

[0007] Furthermore, the ejection mechanism also includes an electric push rod. Push rod seats are fixedly connected to the rear end of the upper surface of the support plate on the right side. The upper end of each push rod seat is rotatably connected to an electric push rod via a pin. The front end of the telescopic end of the electric push rod is rotatably connected to the rear left end of the adjacent placement rack on the front side via a pin, thereby realizing the ejection and retraction of the placement rack.

[0008] Furthermore, the ejection mechanism also includes a slide rail and a diagonal brace. The top left and right ends of the equipment frame and the lower surfaces of the support plates other than the bottom support plate are all fixedly connected to the slide rail. The lower ends of the slide rail are all slidably connected to the slider. The left and right ends of the placement frame are all fixedly connected to the diagonal brace. The lower surface of the slider is fixedly connected to the upper end of the vertically adjacent diagonal brace, thereby improving the rigidity of the placement frame.

[0009] Furthermore, extension frames are fixedly connected to the left and right sides of the front end of the equipment frame, and the extension frames correspond to the front and rear positions of the adjacent support plates on the rear side, thereby increasing the support points for the placement frame.

[0010] Furthermore, the tire storage mechanism also includes an ejection assembly, which includes a push block, a spring, a fixed plate, and a sliding column. A fixed plate is welded to the end of the rotating frame away from the center of the placement ring. Two horizontally distributed sliding columns are slidably connected to the middle of the fixed plate. Push blocks are fixedly connected to the ends of the two sliding columns located on the same fixed plate near the center of the placement ring. The outer arc surface of the push block is slidably connected to the side of the adjacent top plate away from the center of the placement ring. Springs are sleeved on the outside of the sliding columns. The springs are located between the adjacent fixed plates and the push blocks, respectively, to push open the top plate.

[0011] Furthermore, the ejection assembly also includes a limiting plate. The ends of the two sliding pillars located on the same fixed plate that are away from the center of the placement ring are connected to the limiting plate by nuts to prevent the sliding pillars from falling off.

[0012] Furthermore, rotating seats one is fixedly connected to the rear ends of both the left and right sides of the equipment frame, and rotating seats two is fixedly connected to the rear ends of both the left and right sides of the equipment frame. An extension frame is rotatably connected to the middle of rotating seats one and the middle of rotating seats two. A caster wheel one is fixedly connected to the end of the extension frame away from the equipment frame. An insertion hole is opened in the middle of the extension frame. A pin is inserted into the insertion hole of the extension frame located on the rear side to prevent the equipment frame from tipping over.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. The multi-station tire storage device disclosed in this invention has multiple layers of storage racks. Compared with the rotary tire storage device, it can hold more tires with a similar space requirement. The tire storage racks are automatically extended and retracted by the extension and retraction of the electric push rod. The extended storage racks are unobstructed, making it easy to place tires. Furthermore, the lower slide rail 1 serves as a guide, while the upper slide rail 2 and the diagonal brace cooperate to form a triangular structure, which greatly improves the stability of the storage racks.

[0014] 2. The multi-station tire storage device disclosed in this invention places the tire on a placement ring with an inner arc surface that is inclined. The sidewall of the tire is in contact with the top plate, and the inclined edges of the upper and lower ends of the tire are in contact with the inclined edges of the upper and lower ends of the top plate, respectively. This reduces local stress concentration in the tire and prevents micro-collapse of the tire sidewall. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the multi-station tire storage device in the embodiment. Figure 2 This is a partial structural diagram of the ejection mechanism in an embodiment; Figure 3 This is a schematic diagram of the tire storage mechanism in an embodiment; Figure 4 This is a schematic diagram of the component structure for an embodiment; Figure 5 for Figure 1 Enlarged view at point A (in Chinese character format); Figure 6 for Figure 1 Enlarged view of section B (Chinese character symbol B).

[0016] In the diagram: 1-Equipment rack, 2-Support plate, 3-Control unit, 4-Push-out mechanism, 41-Proximity switch, 42-Electric push rod, 43-Slide rail one, 44-Support wheel, 45-Slide rail two, 46-Placement rack, 47-Diagonal brace, 5-Tire storage mechanism, 51-Tire storage rack, 52-Support frame, 53-Placement ring, 54-Top plate, 55-Rotating frame, 561-Push block, 562-Spring, 563-Fixing plate, 564-Slide column, 565-Limiting plate, 6-Tire, 7-Rotating seat one, 8-Rotating seat two, 9-Extension frame, 10-Universal wheel one, 11-Pin, 12-Extension frame. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-6 This embodiment provides a multi-station tire storage device, including a device frame 1, a control unit 3, an ejection mechanism and a tire storage mechanism. The control unit in this embodiment adopts a Vision560 display and control all-in-one machine.

[0019] The equipment frame 1 is fixedly connected to support plates 2 that are evenly distributed vertically on both the left and right sides. The rear ends of both the left and right sides of the equipment frame 1 are fixedly connected to rotating seats 1 and 8. The middle of rotating seats 1 and 8 are rotatably connected to extension frames 9. The end of the extension frame 9 away from the equipment frame 1 is fixedly connected to casters 10. The middle of the extension frame 9 is provided with a hole. The hole of the extension frame 9 on the rear side is inserted with a pin 11. Pull out the pin 11 and open the extension frame 9. The extension frame 9 increases the ground contact area of ​​the front and rear sides of the equipment frame 1 to prevent the equipment frame 1 from tipping over. Casters 10 serve as support wheels and can be casters without foot brakes. The position of the equipment frame 1 is locked by the directional caster with foot brake in the middle and the caster 2 with foot brake in the middle.

[0020] The launching mechanism includes a slide rail 43, support wheels 44, and a placement frame 46. The slide rail 43 is fixedly connected to the upper surface of the support plate 2, and a slider 44 is slidably connected to the upper end of each slide rail 43. The placement frame 46 is fixedly connected between two adjacent sliders 44 on the left and right sides, and evenly distributed support wheels 44 are fixedly connected to both sides of the placement frame 46. The outer arc surface of each support wheel 44 is slidably connected to the upper surface of the adjacent support plate 2. The launching mechanism also includes an electric push rod 42. A push rod seat is fixedly connected to the rear end of the upper surface of the right support plate 2, and an electric push rod 42 is rotatably connected to the upper end of each push rod seat via a pin. The front end of the telescopic end of the electric push rod 42 is rotatably connected to the front end of each push rod via a pin. The electric push rod 42 is electrically connected to the left rear of the adjacent placement rack 46 on the front side. The input end of the electric push rod 42 is electrically connected to the output end of the control unit 3. The left and right sides of the front end of the equipment rack 1 are fixedly connected to the extension rack 12, which is evenly distributed vertically. The extension rack 12 corresponds to the front and rear positions of the adjacent support plate 2 on the rear side. When the telescopic end of the electric push rod 42 is extended, it pushes the support rack 52 to slide forward between the two slide rails 43. The support wheel 44 moves forward synchronously, and the placement rack 46 is pushed out of the equipment rack 1. After the support wheel 44 slides out from the support plate 2, it moves forward a distance on the extension rack 12 to provide support for the placement rack 46, ensuring that at least two support wheels 44 on the same side are not in a suspended state.

[0021] The ejection mechanism also includes a proximity switch 41. In this example, the proximity switch 41 is a GUC15 magnetic position switch. The proximity switch 41 is fixedly connected to the front end of the upper surface of the support plate 2 on the left side. Magnets are fixedly connected to both the front and rear ends of the left side of the placement rack 46. The proximity switch 41 is used in conjunction with two magnets of the same height. The proximity switches 41 are bidirectionally electrically connected to the control unit 3. When the rear magnet moves to the right end of the proximity switch 41, the proximity switch 41 becomes a magnetic proximity switch. After the proximity switch 41 senses the magnet, it sends the position information of the placement rack 46 to the control unit 3, realizing a closed-loop feedback for the ejection and retraction of the placement rack 46. The magnets are sheet magnets processed from natural magnetic minerals. The front magnet corresponds to the position where the placement rack 46 is pushed back into the equipment rack 1, and the rear magnet corresponds to the position when the placement rack 46 is fully ejected.

[0022] The launching mechanism also includes slide rail 45 and diagonal brace 47. Slide rail 45 is fixedly connected to the top left and right ends of the equipment frame 1 and the lower surface of the support plate 2 except for the bottom support plate 2. Sliding slider 2 is slidably connected to the lower end of slide rail 45. Diagonal brace 47 is fixedly connected to the left and right ends of the placement frame 46. The lower surface of slider 2 is fixedly connected to the upper end of the vertically adjacent diagonal brace 47. Since the front end of the placement frame 46 is suspended after the placement frame 46 is launched, the diagonal brace 47 is connected to slide rail 45 through slide rail 45 to form a triangular support mechanical structure, which greatly improves the rigidity. The placement frame 46 does not collapse or warp after the tire is placed.

[0023] The tire storage mechanism includes a tire storage frame 51, a support frame 52, a placement ring 53, a top plate 54, and a rotating frame 55. The tire storage frame 51 is fixedly connected to the left and right sides of the front end of the placement frame 46. Eight evenly distributed rotating frames 55 are fixedly connected to the upper end of each tire storage frame 51. The top plate 54 is rotatably connected to the upper end of each rotating frame 55. The support frame 52 is fixedly connected inside each tire storage frame 51. The placement ring 53 is fixedly connected to the upper surface of each support frame 52. Tires are picked up manually or by a robot and placed inside the tire storage frame 51 when no tire is placed. Under normal circumstances, the top plate 54 is in an inclined state due to the support of the push block 561, which makes it easy to place the tire on the upper end of the placement ring 53. The inclination angle of the inner arc surface of the placement ring 53 is the same as the inclination angle of the tire's inclined surface. After the tire is placed inside the placement ring 53, the inclined surface of the tire fits against the inner arc surface of the placement ring 53, achieving self-centering and surface contact between the placement ring 53 and the tire, reducing local stress concentration.

[0024] The tire storage mechanism also includes an ejection assembly, which comprises a push block 561, a spring 562, a fixing plate 563, and a sliding column 564. A fixing plate 563 is welded to the end of the rotating frame 55 furthest from the center of the placement ring 53. Two laterally distributed sliding columns 564 are slidably connected to the middle of each fixing plate 563. Push blocks 561 are fixedly connected to the ends of the two sliding columns 564 located on the same fixing plate 563 near the center of the placement ring 53. The outer arc surface of the push block 561 is slidably connected to the side of the adjacent top plate 54 furthest from the center of the placement ring 53. Springs 562 are sleeved on the outside of each sliding column 564, and the springs 562 are located between adjacent fixing plates 563 and push blocks 561. The ejection assembly also includes a limiting plate 565. The ends of the two sliding pillars 564 located on the same fixed plate 563 away from the center of the placement ring 53 are connected to the limiting plate 565 by nuts. The spring 562 is replaced regularly to ensure that the elastic force of the spring 562 meets the usage requirements. The push block 561 and the sliding pillar 564 can be removed by unscrewing the nuts of the fixed limiting plate 565. The spring 562 can then be replaced. The limiting plate 565 prevents the sliding pillar 564 from falling off the fixed plate 563 and limits the sliding distance of the sliding pillar 564. At the same time, the connection position between the top plate 54 and the rotating frame 55 is located in the upper part of the top plate 54. The center of gravity of the top plate 54 is located at the lower end of the rotating position of the top plate 54. Under normal circumstances, the pushing force of the spring 562 on the top plate 54 will not cause the top plate 54 to flip.

[0025] The working principle of the multi-station tire storage device disclosed in this embodiment is as follows: Workers move the equipment frame 1 by pulling the handrails at both ends of the equipment frame 1. Two directional casters with foot brakes are fixedly connected to the lower right side of the equipment frame 1 to facilitate straight movement. Two swivel casters with foot brakes are fixedly connected to the lower left side of the equipment frame 1 to facilitate turning. After the position is right, the extension frame 9 is opened.

[0026] Pull out the pin 11 and open the extension frame 9. The extension frame 9 increases the grounding area on the front and rear sides of the equipment frame 1 to prevent the equipment frame 1 from tipping over. The first caster 10 serves as a support wheel. Casters without foot brakes can be selected. The position of the equipment frame 1 is locked by the directional caster with foot brake in the middle and the second caster with foot brake.

[0027] The distance between the rotation center of the rotating seat 1 7 and the side of the equipment frame 1 is larger than the distance between the rotating seat 2 8 and the side of the equipment frame 1 by the width of an extension frame 9, which facilitates the folding of the adjacent extension frames 9 on the left and right. When the equipment frame 1 is pulled to move, the extension frames 9 can be retracted. The extension frames 9 on the left and right sides are locked in position by the pins 11 to prevent the extension frames 9 from shaking.

[0028] When placing tires, the control unit 3 controls the extension end of the electric push rod 42 to extend. The tires are placed sequentially from bottom to top. When the extension end of the electric push rod 42 extends, it pushes the support frame 52 to slide forward between the two slide rails 43. The support wheel 44 moves forward synchronously, and the placement frame 46 is pushed out of the equipment frame 1. The support wheel 44 bears most of the vertical load of the placement frame 46. The slide rails 43 are only responsible for horizontal guidance and preventing deviation. They do not bear heavy loads, which greatly reduces the load on the slide rails 43 and extends their service life. At the same time, it ensures that the extension end of the electric push rod 42 is not subjected to force in the vertical direction, avoids cylinder blockage of the extension end of the electric push rod 42, and extends the service life of the electric push rod 42.

[0029] Since the front end of the placement frame 46 is suspended after the placement frame 46 is pushed out, the diagonal brace 47 is connected to the slide rail 45 through the slide rail 2 45 to form a triangular support mechanical structure, which greatly improves the rigidity. After the tire is placed on the placement frame 46, it will not collapse or warp.

[0030] After the support wheel 44 slides out of the support plate 2, it moves forward a distance on the extension frame 12 to provide support for the placement frame 46, ensuring that at least two support wheels 44 on the same side are not suspended in the air.

[0031] When the rear magnetic piece moves to the right end of the proximity switch 41, the proximity switch 41 is a magnetic proximity switch. After the proximity switch 41 senses the magnetic piece, it sends the position information of the placement rack 46 to the control unit 3 to realize the closed-loop feedback of the placement rack 46 being pushed out and retracted. The magnetic piece is a sheet magnet processed from natural magnetic minerals. The front magnetic piece corresponds to the position where the placement rack 46 is pushed back into the equipment rack 1, and the rear magnetic piece corresponds to the position when the placement rack 46 is fully pushed out.

[0032] The tire is picked up manually or by a robot and placed inside the tire storage rack 51 where no tire is placed. Under normal circumstances, the top plate 54 is tilted and open due to the support of the push block 561, which facilitates the placement of the tire on the upper end of the placement ring 53. The inclination angle of the inner arc surface of the placement ring 53 is the same as the inclination angle of the tire's slope. After the tire is placed inside the placement ring 53, the slope of the tire fits against the inner arc surface of the placement ring 53, achieving self-centering and surface contact between the placement ring 53 and the tire, reducing local stress concentration.

[0033] Both the upper and lower ends of the top plate 54 are inclined towards the center of the placement ring 53, and the inclination angle is the same as the inclination angle of the tire's slope. The upper and lower slopes of the top plate 54 can adaptively fit the slope edges of the upper and lower ends of the tire. The top plate 54 provides support for the tire sidewall, reducing the slight collapse of the tire sidewall. Furthermore, due to the self-centering of the placement ring 53 and the tire's own weight, the slight shaking of the top plate 54 caused by the vibration of the spring 562 when the equipment frame 1 vibrates has almost no effect on the tire.

[0034] Spring 562 is replaced periodically to ensure its elasticity meets usage requirements. The push block 561 and slide column 564 can be removed by unscrewing the nuts on the fixing limit plate 565. (The end of slide column 564 furthest from the placement ring 53 is threaded, and two nuts are threaded to the threaded end of slide column 564. The limit plate 565 is located between the two nuts. The nut closer to the placement ring 53 is used to determine the position of the limit plate 565, and the nut furthest from the placement ring 53 is used to lock the limit plate 565.) Spring 562 can then be replaced. The limit plate 565 prevents slide column 564 from falling off the fixing plate 563 and limits the sliding distance of slide column 564. Meanwhile, the connection between the top plate 54 and the rotating frame 55 is located slightly above the top plate 54. The center of gravity of the top plate 54 is located at the lower end of the rotating position of the top plate 54. Under normal circumstances, the pushing force of spring 562 on the top plate 54 will not cause the top plate 54 to flip.

[0035] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A multi-station tire storage device, characterized in that: Includes equipment rack (1), ejection mechanism and tire storage mechanism; The equipment frame (1) has support plates (2) that are evenly distributed vertically on both the left and right sides. The launching mechanism includes a slide rail (43), a support wheel (44), and a placement frame (46). The slide rail (43) is fixedly connected to the upper surface of the support plate (2). The upper end of the slide rail (43) is slidably connected to a slider. The placement frame (46) is fixedly connected between two adjacent sliders. The left and right sides of the placement frame (46) are fixedly connected to evenly distributed support wheels (44). The outer arc surface of the support wheel (44) is slidably connected to the upper surface of the adjacent support plate (2). The tire storage mechanism includes a tire storage frame (51), a support frame (52), a placement ring (53), a top plate (54), and a rotating frame (55). The tire storage frame (51) is fixedly connected to the left and right sides of the front end of the placement frame (46). Eight evenly distributed rotating frames (55) are fixedly connected to the upper end of the tire storage frame (51). The top plate (54) is rotatably connected to the upper end of the rotating frame (55). The support frame (52) is fixedly connected inside the tire storage frame (51). The placement ring (53) is fixedly connected to the upper surface of the support frame (52).

2. The multi-station tire storage device according to claim 1, characterized in that: The ejection mechanism also includes a proximity switch (41), which is fixedly connected to the front end of the upper surface of the support plate (2) on the left side. Magnets are fixedly connected to both the front and rear ends of the left side of the placement frame (46). The proximity switch (41) is used in conjunction with two magnets of the same height.

3. The multi-station tire storage device according to claim 1, characterized in that: The launching mechanism also includes an electric push rod (42). The upper surface of the support plate (2) on the right side is fixedly connected to the rear end of the push rod seat. The upper end of the push rod seat is rotatably connected to the electric push rod (42) through a pin. The front end of the telescopic end of the electric push rod (42) is rotatably connected to the rear left end of the adjacent placement rack (46) on the front side through a pin.

4. The multi-station tire storage device according to claim 1, characterized in that: The launching mechanism also includes slide rail 2 (45) and diagonal brace (47). Slide rail 2 (45) is fixedly connected to the top left and right ends of the equipment frame (1) and the lower surface of the support plate (2) except the bottom support plate (2). Sliding slider 2 is slidably connected to the lower end of slide rail 2 (45). Diagonal brace (47) is fixedly connected to the left and right ends of the placement frame (46). The lower surface of slider 2 is fixedly connected to the upper end of the vertically adjacent diagonal brace (47).

5. The multi-station tire storage device according to claim 1, characterized in that: The equipment frame (1) has extension frames (12) that are evenly distributed vertically on both the left and right sides of the front end. The extension frames (12) correspond to the front and rear positions of the adjacent support plate (2) on the rear side.

6. The multi-station tire storage device according to claim 1, characterized in that: The tire storage mechanism also includes an ejection assembly, which includes a push block (561), a spring (562), a fixing plate (563), and a sliding column (564). The rotating frame (55) is welded with a fixing plate (563) at one end away from the center of the placement ring (53). The middle of the fixing plate (563) is slidably connected with two horizontally distributed sliding columns (564). The two sliding columns (564) located on the same fixing plate (563) are fixedly connected with a push block (561) at one end near the center of the placement ring (53). The outer arc surface of the push block (561) is slidably connected to the side of the adjacent top plate (54) away from the center of the placement ring (53). The outside of the sliding column (564) is fitted with a spring (562), which is located between the adjacent fixing plate (563) and the push block (561).

7. The multi-station tire storage device according to claim 6, characterized in that: The ejection assembly also includes a limiting plate (565), and the ends of the two sliding pillars (564) located on the same fixed plate (563) away from the center of the placement ring (53) are connected to the limiting plate (565) by nuts.

8. The multi-station tire storage device according to claim 1, characterized in that: Rotary seat 1 (7) is fixedly connected to the rear ends of both sides of the equipment frame (1). Rotary seat 2 (8) is fixedly connected to the rear ends of both sides of the equipment frame (1). An extension frame (9) is rotatably connected to the middle of the rotating seat 1 (7) and the middle of the rotating seat 2 (8). A caster wheel 1 (10) is fixedly connected to the end of the extension frame (9) away from the equipment frame (1). An insertion hole is opened in the middle of the extension frame (9). A pin (11) is inserted into the insertion hole of the extension frame (9) located on the rear side.

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