Multi-leaf spring array stacking structure

Abstract

The present application relates to the technical field of plate spring assembly, in particular to a multi-plate spring arraying and stacking structure, which comprises two conveying belts I oppositely distributed in horizontal direction and two conveying wheels I arranged in each conveying belt I and distributed in up-down direction, a plurality of supporting tables are arranged between the two conveying belts I and equidistantly distributed along the track of the conveying belt I, and a center pull rod for penetrating the center hole of the plate spring is arranged on the supporting table; by adopting the automatic stacking and collecting mode of the plate spring, the manpower can be greatly saved, the tedious operation of identifying and stacking the plate spring by the workers piece by piece can be avoided, the plate spring assembly mode is simplified, the working efficiency is improved, and since the supporting table can continuously move and collect plate springs of different specifications, the stacking work can always be in a continuous state, and the waste of waiting time during the stacking of the plate spring is avoided.

Description

Technical Field

[0001] This invention relates to the technical field of leaf spring assembly, and in particular to a structure for stacking multiple leaf springs. Background Technology

[0002] The core function of leaf springs is to use the elastic deformation of metal materials to bear loads and reduce impacts and vibrations. In the automotive industry, especially in areas with high requirements for load-bearing capacity and durability, such as heavy trucks, buses, pickups and some off-road vehicles, leaf springs have long been a key support and shock-absorbing component of suspension systems (especially non-independent suspensions).

[0003] To overcome the limitations of single-leaf springs, such as poor load-bearing capacity and large deformation, the design concept of multi-leaf springs has emerged and been widely used. Its core idea is to stack several spring steel plates of decreasing length and with the same or similar curvature in a specific order (usually with the longer plates on top and the shorter plates on the bottom) longitudinally aligned, and combine them into a whole structure by fasteners such as central tie rods or clamps. This "stacked" configuration aims to more effectively distribute the load, optimize stress distribution, and improve the overall load-bearing capacity through the coordinated deformation of multiple steel plates, and provide more suitable stiffness characteristics under different load conditions.

[0004] When stacking leaf springs, leaf springs of different specifications are usually sorted and placed around the workers. The workers then pass the leaf springs one by one through the center hole and through the center tie rod according to their size, and arrange the leaf springs neatly. This is how the leaf springs are stacked. However, this method of work has a high repetition rate, requires a lot of manpower, and is slow and inefficient. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a multi-leaf spring stacked structure, the specific technical solution of which is as follows:

[0006] The present invention provides a multi-leaf spring stacking structure, comprising two conveyor belts horizontally distributed opposite each other and two conveyor wheels located within each conveyor belt and distributed vertically. A plurality of support platforms are provided between the two conveyor belts, and the plurality of support platforms are equidistantly distributed along the track of the conveyor belts. A central pull rod for inserting the central hole on the leaf spring is provided on the support platform.

[0007] Along a perpendicular line connecting the two conveyor belts, limit groups are provided on both sides of the central tie rod. Each limit group consists of two oppositely arranged side stops, and each side stop is provided with a guide slope at its end away from the support platform.

[0008] Several feeding structures are arranged vertically on one side of the conveyor belt, and the feeding structures are used to horizontally convey leaf springs of different specifications.

[0009] Furthermore, each of the two side blocks in the limiting group is provided with a plurality of locking blocks on its opposite sidewalls, and the plurality of locking blocks on the side blocks are arranged along the length direction of the side blocks. The locking blocks are slidably inserted into the side blocks, and the surface of the locking blocks away from the support is set as an inclined surface.

[0010] Furthermore, the limiting group also includes an oil storage chamber, and both side blocks are fixed on the oil storage chamber. The side blocks are hollow inside and communicate with the oil storage chamber. A movable column is slidably inserted into one end of the oil storage chamber, and the movable column is connected to the support platform by a spring.

[0011] The end of the card block extends into the side stop body, and the two side stops are interconnected through the oil storage chamber.

[0012] Furthermore, the limiting assembly also includes a drag bar for supporting the leaf spring, and the drag bar is connected to the movable column.

[0013] Furthermore, each of the locking blocks within the side block body is provided with a limiting block for limiting the locking block.

[0014] Furthermore, the feeding structure includes a support plate located in the middle and two telescopic rods located on both sides of the support plate. The telescopic rods are horizontally arranged, and a support sleeve is provided at the fixed end of the telescopic rod. A first spindle is rotatably sleeved inside the support sleeve, and a second spindle is provided at the movable end of the telescopic rod. The second spindle is located between the first spindle and the first conveyor belt. A rotating sleeve is rotatably sleeved on the outer wall of the support sleeve, and a connecting arm is inclinedly arranged on the rotating sleeve. A third spindle is provided on the connecting arm, and the third spindle is connected to the second spindle by a steel leaf spring.

[0015] Each of the three mandrels is equipped with a conveyor wheel 2, and the three conveyor wheels 2 are driven by a conveyor belt 2, which is used to convey the leaf spring.

[0016] Furthermore, a side push plate is provided on the second mandrel, and a side push body that cooperates with the side push plate is provided on the support platform, and a number of rollers are rotatably provided on the outer surface of the side push body.

[0017] Furthermore, an auxiliary structure for guiding the movement of the support platform is provided between the two conveyor belts. The auxiliary structure includes an intermediate body with the same shape as the conveyor belt, and a T-shaped groove with the same shape as the intermediate body is formed on the outer wall of the intermediate body.

[0018] Each of the aforementioned support platforms is provided with two guide posts for sliding within the T-slot.

[0019] The beneficial effects of this invention are as follows:

[0020] By adopting an automated stacking and collection method for leaf springs, manpower can be greatly saved, avoiding the tedious operation of workers identifying and stacking leaf springs one by one, simplifying the leaf spring assembly method, improving work efficiency, and since the platform can move continuously and collect leaf springs of different specifications, the stacking work can always be in a continuous state, avoiding the waste of waiting time when stacking leaf springs. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the external frame in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the support platform and its structure in an embodiment of the present invention;

[0025] Figure 4 yes Figure 3 A structural diagram from another perspective;

[0026] Figure 5 This is a schematic diagram of the side baffle structure in an embodiment of the present invention;

[0027] Figure 6 This is a schematic cross-sectional view of the side baffle structure in an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the feeding structure in an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of conveyor belt two in an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of the telescopic rod in an embodiment of the present invention;

[0031] Figure 10 This is a cross-sectional structural diagram of the intermediate in an embodiment of the present invention.

[0032] Figure label:

[0033] 1. Conveyor belt 1; 2. Conveyor wheel 1; 3. Support platform; 4. Central tie rod; 5. Side baffle; 6. Guide slope; 7. Feeding structure; 8. Clamping block; 9. Oil storage chamber; 10. Movable column; 11. Spring; 12. Trailing rod; 13. Limiting block; 14. Support plate; 15. Telescopic rod; 16. Support sleeve; 17. Mandrel 1; 18. Mandrel 2; 19. Rotating sleeve; 20. Connecting arm; 21. Mandrel 3; 22. Steel leaf spring; 23. Conveyor wheel 2; 24. Conveyor belt 2; 25. Connecting sleeve; 26. Motor; 27. Bevel gear 1; 28. Bevel gear 2; 29. ​​Side push plate; 30. Side push body; 31. Roller; 32. Intermediate body; 33. T-slot; 34. Guide column; 35. Outer frame. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. This embodiment is written in a progressive manner.

[0037] like Figures 1 to 10 As shown, a multi-leaf spring stacking structure of the present invention includes two conveyor belts 1 that are horizontally opposite to each other and two conveyor wheels 2 located in each conveyor belt 1 and distributed vertically. A plurality of support platforms 3 are provided between the two conveyor belts 1, and the plurality of support platforms 3 are equidistantly distributed along the track of the conveyor belts 1. A central pull rod 4 for inserting the central hole on the leaf spring is provided on the support platform 3.

[0038] Along the vertical line connecting the two conveyor belts 1, limit groups are provided on both sides of the central tie rod 4. The limit groups consist of two oppositely arranged side stops 5, and each side stop 5 is provided with a guide slope 6 at the end away from the support platform 3.

[0039] Several feeding structures 7 are arranged vertically on one side of the conveyor belt 1. The feeding structures 7 are used for horizontally conveying leaf springs of different specifications.

[0040] Several horizontally arranged and vertically aligned feeding structures 7 can be used to transport leaf springs of different specifications to a position close to the conveyor belt 1. The specifications of the leaf springs transported on the feeding structures 7 gradually change from bottom to top, thus facilitating the stacking of leaf springs one by one according to their width. Two conveyor wheels 2 inside the conveyor belt 1 can be used to transport the conveyor belt 1, thereby enabling the conveyor belt 1 to rotate. To support the conveyor wheels 2, a rotating shaft can be set on each conveyor wheel 2, and the conveyor wheels 2 on the two conveyor belts 1 at the same height can be located on the same rotating shaft. In this way, when one rotating shaft rotates, it can drive the two conveyor belts 1 to move synchronously. Several support platforms 3 on the conveyor belt 1 can be used to support the stacked leaf springs. Since the support platforms 3 follow the cyclical movement of the conveyor belt 1, continuous stacking of leaf springs can be achieved, improving the continuity of leaf spring assembly. Figure 2 As shown, in order to improve the stability of the overall structure, an outer frame 35 can be set up, and the rotating shaft and the feeding structure 7 can be set inside the outer frame 35.

[0041] In use, several feeding structures 7 horizontally transport leaf springs of different specifications to a position close to the conveyor belt 1. The conveyor belt 1 rotates and drives the support platform 3 and its structure to move synchronously. When the support platform 3 moves on the conveyor belt 1 to the side close to the feeding structure 7, the support platform 3 moves vertically upward. At this time, the support platform 3 gradually approaches the lowermost feeding structure 7. The central tie rod 4 on the support platform 3 passes through the central hole of the leaf spring on the feeding structure 7, and the side stops 5 in the two limit groups on the support platform 3 can limit the position of the leaf spring, thereby preventing the leaf spring from being damaged. The central pull rod 4 can be rotated freely to facilitate the neat stacking of leaf springs. The feeding structure 7 can be moved to avoid the support platform 3, and the leaf springs on the feeding structure 7 will stay on the support platform 3. As the support platform 3 continues to move upward, the leaf springs on multiple feeding structures 7 are stacked one by one on the support platform 3, thereby realizing the stacking of leaf springs. At the same time, each feeding structure 7 can actively avoid the support platform 3 to allow the support platform 3 to move smoothly. When the support platform 3 moves vertically to the designated position, the stacked leaf spring group on the support platform 3 can be removed by a robotic arm or other structure.

[0042] It should be noted that when the support platform 3 is far away from the feeding structure 7, the feeding structure 7 can be reset, which makes it convenient for the feeding structure 7 to continue to transport the leaf spring and prepare for the next stacking operation; the guide slope 6 on the top of the side block 5 can be used to guide the leaf spring, so that it can be smoothly moved between the two side blocks 5.

[0043] By adopting an automatic stacking and collection method for leaf springs, manpower can be greatly saved, avoiding the tedious operation of workers having to identify and stack leaf springs one by one, simplifying the leaf spring assembly method, improving work efficiency, and since the support platform 3 can move continuously and collect leaf springs of different specifications, the stacking work can always be in a continuous state, avoiding the waste of waiting time when stacking leaf springs.

[0044] Furthermore, several locking blocks 8 are provided on the opposite side walls of the two side blocks 5 within the limiting group, and the locking blocks 8 on the side blocks 5 are arranged along the length direction of the side blocks 5. The locking blocks 8 are slidably inserted into the side blocks 5, and the surface of the locking blocks 8 away from the support platform 3 is set as an inclined surface.

[0045] When the leaf spring is placed between the two side stops 5, the leaf spring will use its own weight and the inclined surface on the stop 8 to push the stop 8 into the side stop 5, thus allowing the leaf spring to fall smoothly to the designated position. When the leaf spring separates from the stop 8, the stop 8 slides out. At this time, the stop 8 blocks and limits the leaf spring on its lower side, thereby preventing the leaf spring from jumping around when the support 3 moves. The setting of multiple stop 8 on each side stop 5 can limit the leaf spring at different height positions, thereby fully restricting the stacked leaf springs.

[0046] Furthermore, the limiting group also includes an oil storage chamber 9, and both side blocks 5 are fixed on the oil storage chamber 9. The side blocks 5 are hollow inside and are connected to the oil storage chamber 9. A movable column 10 is slidably inserted into one end of the oil storage chamber 9, and the movable column 10 is connected to the support platform 3 by a spring 11.

[0047] The end of the locking block 8 extends into the side stop 5, and the two side stops 5 are connected to each other through the oil storage chamber 9.

[0048] Hydraulic oil is stored in both the side stop 5 and the oil reservoir 9. The spring 11 provides an elastic force to the movable column 10, causing the movable column 10 to tend to move towards the inside of the oil reservoir 9. This gives the hydraulic oil in the side stop 5 and the oil reservoir 9 a certain pressure, which is transmitted to the locking block 8. This makes it convenient to provide an elastic force to each locking block 8 at different height positions, that is, several locking blocks 8 can share one spring 11. When the leaf spring falls and pushes the locking block 8 into the side stop 5, a small amount of hydraulic oil in the side stop 5 will enter the oil reservoir 9 and push the movable column 10 to move outward a small distance.

[0049] Furthermore, the limiting assembly also includes a drag bar 12 for supporting the leaf spring, and the drag bar 12 is connected to the movable column 10.

[0050] The tow bar 12 can lift the stacked leaf springs, thus preventing the leaf springs from being difficult to remove when placed directly on the support platform 3. After the leaf springs are stacked, the external robotic arm or shovel can be inserted into the bottom of the leaf springs by pushing the tow bar 12, thus making it easy to grab the leaf springs from the bottom. The movement of the tow bar 12 will drive the movable column 10 to move, increasing the internal space of the oil reservoir 9. The locking blocks 8 on each side stop 5 will retract into the side stop 5, thereby unlocking each locking block 8 and making it easy to remove the leaf springs.

[0051] In actual use, several insertion holes can be opened on the side wall of the side block 5. The locking block 8 slides in the insertion hole. When the locking block 8 moves, it will always isolate the hydraulic oil in the side block 5, thereby avoiding hydraulic oil leakage. At the same time, the outer end of the locking block 8 can be completely slid into the insertion hole to avoid the locking block 8 from obstructing the removal of the leaf spring.

[0052] Furthermore, each of the locking blocks 8 inside the side block 5 is provided with a limiting block 13 at its end for limiting the locking block 8.

[0053] Since the locking block 8 needs to extend and retract, in order to prevent the locking block 8 from extending completely and detaching from the side stop 5 or from retracting completely into the side stop 5, the moving range of the locking block 8 needs to be limited by the limiting block 13. At the same time, in order to prevent the hydraulic oil from failing to provide pushing force to the limiting block 13 and the locking block 8 when the side wall of the limiting block 13 is in contact with the inner wall of the side stop 5, the shape of the limiting block 13 can be set as a cone facing away from the locking block 8.

[0054] Furthermore, the feeding structure 7 includes a support plate 14 located in the middle and two telescopic rods 15 located on both sides of the support plate 14. The telescopic rods 15 are horizontally arranged, and a support sleeve 16 is provided at the fixed end of the telescopic rod 15. A spindle 17 is rotatably sleeved inside the support sleeve 16, and a spindle 28 is provided at the movable end of the telescopic rod 15. The spindle 28 is located between the spindle 17 and the conveyor belt 1. A rotating sleeve 19 is rotatably sleeved on the outer wall of the support sleeve 16. A connecting arm 20 is inclinedly arranged on the rotating sleeve 19. A spindle 3 21 is arranged on the connecting arm 20. The spindle 3 21 and the spindle 2 18 are connected by a steel leaf spring 22.

[0055] Each of the mandrel 17, mandrel 28 and mandrel 321 is rotatably equipped with a conveyor wheel 23, and the three conveyor wheels 23 are driven by a conveyor belt 24, which is used to convey the leaf spring.

[0056] The two conveyor belts 24 are positioned so that there are two contact points with the leaf springs, which facilitates the movement of the central tie rod 4 and the side stop 5 on the support platform 3 between the two conveyor belts 24 to receive the leaf springs. The support plate 14 provides support for the two telescopic rods 15 and their structures. The three conveyor wheels 23 are arranged in a triangle using the telescopic rods 15, the connecting arm 20 and the leaf spring 22. When the length of one side of the triangle changes, that is, when the telescopic rod 15 moves in extension or retraction, the leaf spring 22 can undergo elastic deformation, and the angle between the connecting arm 20 and the telescopic rod 15 will change, thereby keeping the conveyor belts 24 taut.

[0057] The spindle 17 and rotating sleeve 19 on the support sleeve 16 can rotate on the support sleeve 16, thereby deforming the triangle. When the support platform 3 moves to the position of the feeding structure 7 and completes the leaf spring receiving work, the spindle 18 moves away from the conveyor belt 1, and the telescopic rod 15 retracts. At this time, the deformed leaf spring 22 will push the spindle 21, connecting arm 20 and rotating sleeve 19 to rotate on the support sleeve 16. The triangle formed by the three conveyor wheels 23 deforms, and the three conveyor wheels 23 maintain the supporting effect on the conveyor belt 24. Two connecting sleeves 25 can be set at both ends of the leaf spring 22. The two connecting sleeves 25 are respectively sleeved on the spindle 18 and the spindle 21. The two connecting sleeves 25 are fixedly connected to the spindle 21 and the spindle 28, respectively, or one of the two connecting sleeves 25 can be fixedly connected to the spindle 21 and the spindle 28. One is fixedly connected to the mandrel 21 or the mandrel 18. This allows the leaf spring 22 to not only bend and deform when the telescopic rod 15 extends or retracts, but also change its direction of deformation. That is, the leaf spring 22 has the characteristic of restoring its natural shape and position. This characteristic can be used to reset the mandrel 18, thus avoiding the elastic deformation of the leaf spring 22 caused by the extension and retraction of the telescopic rod 15 when the two connecting sleeves 25 are rotatably connected to the mandrel 21 and the mandrel 18 respectively. However, due to the setting of the connecting sleeves 25, the direction of elastic deformation of the leaf spring 22 is not restricted. Therefore, the leaf spring 22 can only provide the elastic thrust for the extension of the telescopic rod 15 and the connecting arm 20, but cannot reset the mandrel 18. That is, the triangle in which the three conveying wheels 23 are located can deform at will without resetting.

[0058] To provide power for the transmission of the second conveyor belt 24, the two spindles 17 on the feeding structure 7 can be connected. A motor 26 is installed on the support plate 14. A bevel gear 27 is installed at the output end of the motor 26. A bevel gear 28 is meshed on the bevel gear 27. The bevel gear 28 is installed on the connected spindles 17. Thus, the motor 26 can drive the spindles 17, the conveyor wheel 23 and the second conveyor belt 24.

[0059] Furthermore, a side push plate 29 is provided on the second spindle 18, and a side push body 30 that works in conjunction with the side push plate 29 is provided on the support platform 3, and a number of rollers 31 are rotatably provided on the outer surface of the side push body 30.

[0060] like Figure 9 As shown, the side push plate 29 includes a lower inclined surface and an upper arc surface that wraps around the second mandrel 18. When the support platform 3 moves to the position of the feeding structure 7, the side push body 30 on the support platform 3 contacts the side push plate 29 through several rollers 31 and uses the inclined surface of the side push plate 29 to push the second mandrel 18 to move laterally. At this time, the telescopic rod 15 retracts. When the support platform 3 moves away from the telescopic rod 15, the leaf spring 22 will push the second mandrel 18 to return to its original position. The setting of the rollers 31 can reduce the friction between the side push plate 29 and the side push body 30.

[0061] Furthermore, an auxiliary structure for guiding the movement of the support platform 3 is provided between the two conveyor belts 1. The auxiliary structure includes an intermediate body 32 with the same shape as the conveyor belt 1, and a T-shaped groove 33 with the same shape as the intermediate body 32 is provided on the outer wall of the intermediate body 32.

[0062] Each support platform 3 is equipped with two guide posts 34 for sliding within the T-slot 33.

[0063] When the conveyor belt 1 moves, it will drive the two guide columns 34 to slide in the T-slot 33 through the support platform 3. In this way, the support platform 3 is guided by the cooperation of the two guide columns 34 and the T-slot 33, so as to prevent the support platform 3 from tilting or rotating at will.

[0064] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A multi-leaf spring stacked structure, characterized in that, It includes two conveyor belts that are horizontally opposite to each other and two conveyor wheels that are located inside each conveyor belt and are vertically distributed. A plurality of support platforms are provided between the two conveyor belts and the plurality of support platforms are equidistantly distributed along the track of the conveyor belts. A central pull rod for inserting into the central hole of the leaf spring is provided on the support platform. Along a perpendicular line connecting the two conveyor belts, limit groups are provided on both sides of the central tie rod. Each limit group consists of two oppositely arranged side stops, and each side stop is provided with a guide slope at its end away from the support platform. Several feeding structures are arranged vertically on one side of the conveyor belt, and the feeding structures are used to horizontally convey leaf springs of different specifications. Several locking blocks are provided on the opposite side walls of the two side blocks in the limiting group, and the locking blocks on the side blocks are arranged along the length direction of the side blocks. The locking blocks are slidably inserted into the side blocks, and the surface of the locking blocks away from the support is set as an inclined surface. The limiting group also includes an oil storage chamber, and both side blocks are fixed on the oil storage chamber. The side blocks are hollow inside and communicate with the oil storage chamber. A movable column is slidably inserted into one end of the oil storage chamber, and the movable column is connected to the support platform by a spring. The end of the card block extends into the side baffle body, and the two side baffle bodies are interconnected through the oil reservoir. The feeding structure includes a support plate in the middle and two telescopic rods on both sides of the support plate. The telescopic rods are horizontally arranged. A support sleeve is provided at the fixed end of the telescopic rod. A first spindle is rotatably sleeved inside the support sleeve. A second spindle is provided at the movable end of the telescopic rod, and the second spindle is located between the first spindle and the first conveyor belt. A rotating sleeve is rotatably sleeved on the outer wall of the support sleeve. A connecting arm is inclinedly arranged on the rotating sleeve. A third spindle is provided on the connecting arm. The third spindle is connected to the second spindle by a steel leaf spring. Each of the mandrel 1, mandrel 2 and mandrel 3 is provided with a conveyor wheel 2, and the three conveyor wheels 2 are driven by a conveyor belt 2, which is used to convey the leaf spring; The second spindle is provided with a side push plate, and the support is provided with a side push body that works in conjunction with the side push plate. Several rollers are rotatably provided on the outer surface of the side push body.

2. The multi-leaf spring stacking structure according to claim 1, characterized in that, The limiting assembly also includes a drag bar for supporting the leaf spring, and the drag bar is connected to the movable column.

3. The multi-leaf spring stacking structure according to claim 2, characterized in that, Each of the locking blocks within the side block body is provided with a limiting block at its end for limiting the locking block.

4. The multi-leaf spring stacking structure according to claim 3, characterized in that, An auxiliary structure for guiding the movement of the support platform is provided between the two conveyor belts. The auxiliary structure includes an intermediate body with the same shape as the conveyor belt. A T-shaped groove with the same shape as the intermediate body is formed on the outer wall of the intermediate body. Each of the aforementioned support platforms is provided with two guide posts for sliding within the T-slot.

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