Tray mechanism for tank production line

Abstract

The invention provides a tray mechanism for a tank body production line, which integrates a positioning mechanism and a tray mechanism of a tank body into a whole, so that the arrangement of the production line is simple, the deployment difficulty of the production line is reduced, and the positioning of the tank body is accurate and reliable. The tray plate is arranged by covering the periphery of the lower surface of the corresponding tank body; a central support assembly; a jacking assembly; a bottom guide plate; a pair of first positioning assemblies; and a pair of second positioning assemblies. A first positioning assembly is arranged at the width center position of one pair of edges of the tray plate, a second positioning assembly is arranged at the width center position of the other pair of edges of the tray plate, the center position of the tray plate is fixedly connected with a top mechanism of a center supporting assembly, and the bottom of the center supporting assembly is externally connected with a production line support mechanism with the fixed position. A jacking assembly is arranged in a center cavity of the center supporting assembly, and the bottom of the jacking assembly penetrates through the bottom guide plate to be externally connected with the output end of a jacking power source.

Description

Technical Field

[0001] The invention relates to the technical field of can production line structures, in particular to a tray mechanism used in a can production line. Background Art

[0002] When packaging cans are produced, step-by-step conveying operations are required so that the can body can be moved between different workstations. After the square can is swelled, a slight offset in the X direction, Y direction, or both directions will inevitably occur during the step-by-step operation. Therefore, when it is necessary to ensure that the square can is stably and reliably placed during subsequent positioning, it is necessary to set external X-direction positioning and Y-direction positioning mechanisms at the bottom of the corresponding workstation. The positioning mechanisms of existing mechanisms are generally independently arranged on the periphery of the pallet mechanism, resulting in a complex design of the entire production line. Moreover, since the positioning mechanism is independently arranged on the periphery of the pallet mechanism of each workstation, the pallet mechanism and the positioning mechanism also need to be aligned in the height direction, resulting in a complex design of the entire production line and a large occupied width area. Therefore, it is urgently necessary to develop a corresponding mechanism that can integrate the positioning mechanism into the pallet mechanism, so as to simplify the layout of the production line, reduce the difficulty of production line allocation, and make the positioning accurate and reliable. Summary of the invention

[0003] In view of the above problems, the present invention provides a pallet mechanism for a can production line, which integrates the can positioning mechanism and the pallet mechanism into one, thereby simplifying the layout of the production line, reducing the difficulty of production line deployment, and making the positioning of the can accurate and reliable.

[0004] A tray mechanism for a can production line, characterized in that it comprises: A tray plate, which is arranged to cover the outer circumference of the lower surface of the corresponding tank body; Center support assembly; Lifting components; Bottom guide plate; a pair of first positioning components; and a pair of second positioning components; A first positioning assembly is provided at the width center position of one pair of sides of the pallet plate, and a second positioning assembly is provided at the width center position of the other pair of sides of the pallet plate. The top mechanism of the central support assembly is fixedly connected to the center position of the pallet plate, and the bottom of the central support assembly is externally connected to a production line bracket mechanism fixed thereto. A jacking assembly is provided in the central cavity of the central support assembly, and the bottom of the jacking assembly passes through the bottom guide plate and is externally connected to an output end of a jacking power source. The lifting carriers of the first and second positioning assemblies are fixedly connected to the upper output end of the jacking assembly.

[0005] It is further characterized by: The first positioning assembly includes a first guide block with a fixed position and a guide bevel block with lifting adjustment, the first guide block is respectively fixed to the width center position area of ​​the upper surface of each side of one pair of sides of the pallet plate, the inner side of the first guide block is a guide plate, the guide plate is a long strip plate, the pallet plate is provided with a first avoidance groove at a position corresponding to the guide bevel block, the guide bevel block includes a guide bevel edge, the guide bevel edge is a structure gradually approaching the inner side of the guide plate from top to bottom, the guide bevel block is located in the space of the first avoidance groove, and the bottom of the guide bevel block is fixed to the lower connecting plate; The central areas of the lower connecting plates of the two groups of the first positioning assemblies are connected to form an integrated lower connecting plate assembly, and when the tank body is not positioned, a movable gap is left between the upper surface of the lower connecting plate assembly and the lower surface of the tray plate, and the central area of ​​the lower connecting plate assembly is fixedly connected to the upper output end of the jacking assembly; The upper part of the inner side of the guide plate is a guide edge that is inclined from top to bottom toward the center, which ensures the self-guiding alignment of the tank body; The spacing between the areas below the guide plates of the two pairs of first positioning assemblies is the set outer spacing in the first direction of the tank body. When the guiding inclined blocks of the first positioning assemblies are lifted up, they reliably clamp the inner wall of the tank body according to the thickness of the tank body, thereby ensuring accurate and reliable positioning of the tank body in the first direction. The second positioning assembly is a clamping claw cylinder, which includes a cylinder seat and a pair of clamping claws. A second avoidance groove is provided on each side of the central area in the width direction of the other pair of sides of the pallet plate. The second avoidance groove is a long strip structure. Side convex connection frames are provided on the other two sides of the lower connecting plate assembly. The cylinder seat is fixed to the side convex connection frame. The pair of clamping claws respectively correspond to the space settings of the second avoidance grooves at corresponding positions. The pair of clamping claws are centrally positioned to fit the pair of sides of the second direction of the tank body during operation to ensure accurate and reliable positioning of the tank body in the second direction. The central support assembly includes side support connecting frames, connecting flanges, and lower connecting sleeves on both sides. The upper part of the connecting flange is provided with side support connecting frames arranged on both sides. The upper part of the side support connecting frame is fixedly connected to the central area of ​​the pallet plate by fasteners. The lower part of the connecting flange is fixedly sleeved on the upper part of the lower connecting sleeve. The outer periphery of the connecting flange is fixedly connected to the production line bracket mechanism in a fixed position by long bolts. The central hole of the lower connecting sleeve is used to install the components of the jacking assembly. The lifting assembly includes a connection pressing assembly, a guide sleeve assembly, and a lower convex connection assembly from top to bottom. The connection pressing assembly is used to fix the central area of ​​the lower connection plate assembly and the side convex connection frames on both sides. The lower part of the connection pressing assembly is attached to the central upper surface of the guide sleeve assembly. The connecting and pressing assembly comprises guide inserts on both sides, the guide inserts are respectively embedded in the inner cavity of the corresponding side supporting connecting frame, the convex part of the guide insert is embedded in the corresponding guide track cavity of the corresponding side supporting connecting frame, and the bottom of the side supporting connecting frame is also provided with an upper convex guide column, the guide column is inserted into the guide track groove of the guide insert, and the guide inserts are respectively fixed to the corresponding positions of the lower connecting plate assembly, which makes the lifting track of the entire connecting and pressing assembly stable and reliable; The guide sleeve assembly includes a guide sleeve, an upper bearing, and a lower bearing. A limiting ring is arranged on the upper part of the guide sleeve. The guide sleeve passes through the central hole of the lower connecting sleeve and is linearly guided and connected through the upper bearing and the lower bearing respectively. The lower part of the guide sleeve is fixedly inserted into the central positioning hole of the bottom guide plate. A spacing is left between the limiting ring of the guide sleeve and the connecting flange in height. The lower convex connecting assembly includes a lower convex connecting rod, an adjusting rod, an adjusting spring, and a pressure adjusting lock accessory. The adjusting spring is arranged on the upper part of the central cavity of the guide sleeve, and the adjusting rod is arranged on the lower part of the central cavity of the guide sleeve. The lower exposed end of the adjusting rod is located at the lower end of the bottom guide plate, the lower exposed end of the adjusting rod is pivotally connected to the upper end of the lower convex connecting rod, and the lower end of the lower convex connecting rod is externally connected to the output end of the jacking power source. The adjusting rod is guided and placed in the lower part of the central cavity of the guide sleeve through two sets of mounting bearings, and the top of the adjusting rod is top-mounted with the bottom of the adjusting spring. The pressure adjusting lock accessory is threadedly connected to the upper center connecting screw hole of the guide sleeve, and the lower part of the pressure adjusting lock accessory is pressed on the upper end of the adjusting spring. The pressing force of the adjusting spring is adjusted by rotating the pressure adjusting lock accessory.

[0006] After adopting the structure of the present invention, the stepping clamp places the can body from top to bottom into the pallet plate of the pallet mechanism. At this time, the two opposite sides of the can body in the first direction are positioned by the convex part of the first positioning component. Then the jacking power source drives the first positioning component and the second positioning component originally located under the pallet plate to rise. The first positioning component ensures accurate and reliable positioning of the tank body in the first direction, and the second positioning component ensures accurate and reliable positioning of the tank body in the second direction. The positioning mechanism of the tank body and the pallet mechanism are integrated into one, which simplifies the layout of the production line, reduces the difficulty of production line allocation, and makes the positioning of the tank body accurate and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 The three-dimensional structure diagram of the present invention is shown in FIG. Figure 1 ; Figure 2 The three-dimensional structure diagram of the present invention is shown in FIG. Figure 2 ; Figure 3 A top view of the present invention; Figure 4 for Figure 3 AA section view (omit the side support connecting frame); Figure 5 for Figure 3 BB section view (omit the side support connecting frame); The names corresponding to the serial numbers in the figure are as follows: Pallet plate 10, first avoidance groove 11, second avoidance groove 12, center support assembly 20, side support connecting frame 21, guide rail cavity 211, guide column 212, connecting flange 22, lower connecting sleeve 23, long bolt 24, lifting assembly 30, connecting pressing assembly 31, guide block 311, guide sleeve assembly 32, guide sleeve 321, upper bearing 322, lower bearing 323, limiting ring 324, lower convex connecting assembly 33, lower convex connecting rod 331, adjusting rod 332, adjusting spring 333, pressure adjusting lock accessory 334, installing bearing 335, bottom guide plate 40, first positioning assembly 50, first guide block 51, guide bevel block 52, guide plate 53, guide bevel edge 54, lower connecting plate assembly 55, guide edge 56, side convex connecting frame 57, waist-shaped positioning hole 58, second positioning assembly 60, cylinder seat 61, clamping claw 62. DETAILED DESCRIPTION

[0008] A tray mechanism for a tank production line, see Figure 1-Figure 5 , which includes a tray plate 10, a center support assembly 20, a lifting assembly 30, a bottom guide plate 40, a pair of first positioning assemblies 50, and a pair of second positioning assemblies 60; The pallet plate 10 is arranged to cover the outer periphery of the lower surface of the corresponding tank body, a first positioning assembly 50 is arranged at the width center position of one pair of sides of the pallet plate 10, and a second positioning assembly 60 is arranged at the width center position of the other pair of sides of the pallet plate 10. The top mechanism of the central support assembly 20 is fixedly connected to the center position of the pallet plate 10, and the bottom of the central support assembly 20 is externally connected to a production line bracket mechanism (not shown in the figure) fixed in a position, and a jacking assembly 30 is arranged in the central cavity of the central support assembly 20. The bottom of the jacking assembly 30 passes through the bottom guide plate 40 and is externally connected to an output end of a jacking power source (not shown in the figure), and the lifting carriers of the first positioning assembly 50 and the second positioning assembly 60 are fixedly connected to the upper output end of the jacking assembly 30.

[0009] In specific implementation, the first positioning assembly 50 includes a first guide block 51 with a fixed position and a guide bevel block 52 with lifting adjustment. The first guide block 51 is respectively fixed to the width center position area of ​​the upper surface of each side of one pair of sides of the pallet plate 10. The inner side of the first guide block 51 is a guide plate 53, and the guide plate 53 is a long strip. The pallet plate 10 is provided with a first avoidance groove 11 at a position corresponding to the guide bevel block 52. The guide bevel block 52 includes a guide bevel 54, and the guide bevel 54 is a structure that gradually approaches the inner side of the guide plate 53 from top to bottom. The guide bevel block 52 is located in the space of the first avoidance groove 11, and the bottom of the guide bevel block 52 is fixed to the lower connecting plate. In the non-positioning state, the guide bevel block 52 is located below the first avoidance groove 11; The central areas of the lower connecting plates of the two groups of first positioning assemblies 50 are connected to form an integrated lower connecting plate assembly 55. When the tank body is not positioned, the upper surface of the lower connecting plate assembly 55 has a movable gap with the lower surface of the tray plate 10. The central area of ​​the lower connecting plate assembly 55 is fixedly connected to the upper output end of the jacking assembly 30. The upper portion of the inner side of the guide plate 53 is a guide edge 56 that is inclined from top to bottom toward the center, which ensures the self-guiding alignment of the tank body; The spacing between the areas below the guide plates 53 of the two pairs of first positioning assemblies is the set outer spacing in the first direction of the tank body. When the guide bevel block 52 of the first positioning assembly 50 is lifted, it reliably clamps the inner wall of the tank body according to the thickness of the tank body, ensuring accurate and reliable positioning of the tank body in the first direction. The second positioning assembly 60 is a clamping cylinder, which includes a cylinder seat 61 and a pair of clamping jaws 62. A second avoidance groove 12 is provided on each side of the central area in the width direction of the other pair of sides of the pallet plate 10. The second avoidance groove 12 is a long strip structure. The other two sides of the lower connecting plate assembly 55 are provided with side convex connecting frames 57. The cylinder seat 61 is fixed to the side convex connecting frame 57. A pair of clamping jaws 62 respectively correspond to the space setting of the second avoidance groove 12 at the corresponding position. In the non-positioning state, the clamping cylinder is located below the second avoidance groove 12. The pair of clamping jaws 62 are centered and positioned to fit the pair of sides of the second direction of the tank body during operation, ensuring that the positioning of the tank body in the second direction is accurate and reliable. In a specific embodiment, waist-shaped positioning holes 58 arranged laterally are provided on the two side plates of each group of side convex connecting frames 57. The waist-shaped positioning holes 58 are used to reliably adjust the position of the cylinder seat 61 of the clamping cylinder according to the actual position, ensuring that the position of the tank body is accurate and reliable after the clamping jaws 62 of the clamping cylinder are centered.

[0010] In specific implementation, the central support assembly 20 includes side support connecting frames 21, connecting flanges 22, and lower connecting sleeves 23 on both sides. The upper part of the connecting flanges 22 is provided with side support connecting frames 21 arranged on both sides. The upper part of the side support connecting frame 21 is fixedly connected to the central area of ​​the pallet plate 10 by fasteners. The lower part of the connecting flange 22 is fixedly sleeved on the upper part of the lower connecting sleeve 23. The outer periphery of the connecting flange 22 is fixedly connected to the production line bracket mechanism with a fixed position by long bolts 24. The central hole of the lower connecting sleeve 23 is used to install the components of the jacking assembly 30. The lifting assembly 30 includes a connecting and pressing assembly 31, a guide sleeve assembly 32, and a lower convex connecting assembly 33 from top to bottom. The connecting and pressing assembly 31 is used to fix the central area of ​​the lower connecting plate assembly 55 and the side convex connecting frames 57 on both sides. The lower part of the connecting and pressing assembly 31 is arranged on the central upper surface of the guide sleeve assembly 32. The connection pressing assembly 31 includes guide inserts 311 on both sides, the guide inserts 311 are respectively embedded in the inner cavity of the corresponding side support connecting frame 21, and the convex parts of the guide inserts 311 are embedded in the corresponding guide track cavity 211 of the corresponding side support connecting frame 21. The bottom of the side support connecting frame 21 is also provided with a convex guide column 212, and the guide column 212 is inserted into the guide track groove of the guide insert 311 (blocked in the figure, belonging to the guide limit mechanism), and the guide inserts 311 are respectively fixed to the corresponding positions of the lower connecting plate assembly 55, which makes the lifting track of the entire connection pressing assembly 31 stable and reliable; The guide sleeve assembly 32 includes a guide sleeve 321, an upper bearing 322, and a lower bearing 323. A limit ring 324 is provided on the upper part of the guide sleeve 321. The guide sleeve 321 passes through the central hole of the lower connecting sleeve 23 and is linearly guided and connected through the upper bearing 322 and the lower bearing 323 respectively. The lower part of the guide sleeve 321 is fixedly inserted into the central positioning hole of the bottom guide plate 40. The limit ring 324 of the guide sleeve 321 and the connecting flange 22 are spaced apart in height. The lower convex connecting assembly 33 includes a lower convex connecting rod 331, an adjusting rod 332, an adjusting spring 333, and a pressure adjusting locking accessory 334. The upper part of the central cavity of the guide sleeve 321 is provided with an adjusting spring 333, and the lower part of the central cavity of the guide sleeve 321 is provided with an adjusting rod 332. The lower exposed end of the adjusting rod 332 is located at the lower end of the bottom guide plate 40, and the lower exposed end of the adjusting rod 332 is pivotally connected to the upper end of the lower convex connecting rod 331. The lower end of the lower convex connecting rod 331 is externally connected to the output end of the jacking power source. The adjusting rod 332 is guided and placed in the lower part of the central cavity of the guide sleeve 321 through two groups of mounting bearings 335. The top of the adjusting rod 332 is mounted on the bottom of the adjusting spring 333. The pressure adjusting locking accessory 334 is threadedly connected to the upper central connecting screw hole of the guide sleeve 321. The lower part of the pressure adjusting locking accessory 334 is press-fitted on the upper end of the adjusting spring 333. The pressing force of the adjusting spring 333 is adjusted by rotating the pressure adjusting locking accessory 334.

[0011] In specific implementation, a guide rod 41 is further provided between the lower connecting sleeve 23 and the bottom guide plate 40 , and a downwardly convex guide rod 41 is fixedly installed on the side of the lower connecting sleeve 23 , and the guide rod 41 passes through the guide through hole 42 of the bottom guide plate 40 , which ensures stable and reliable jacking.

[0012] When the bottom of the tank is fully supported on the upper surface of the tray plate 10, the lifting power source at the bottom lifts and drives the lower convex connecting rod 331 to rise. At this time, the adjustment spring 333 is adjusted to have a greater downward pressure, and the guide sleeve 321, the adjustment rod 332, and the adjustment spring 333 rise synchronously, thereby driving the connection pressing assembly 31 to rise, and then driving the guide bevel block 52 of the first positioning assembly 50 and the clamping cylinder of the second positioning assembly 60 to rise. At this time, the clamping cylinder is in a non-working state, and a horizontal spacing is left between the clamping jaws 62 of each group of clamping jaw cylinders. When the guide bevel block 52 moves from bottom to top until the guide bevel edge 54 of the guide bevel block 52 is close to the inner wall of the first direction edge of the tank, The clamping cylinder also rises into place synchronously. At this time, the lower connecting plate assembly 55 can no longer rise, and the pressure adjustment lock accessory 334 presses the adjustment spring 333. The lifting power source drives the adjustment rod 332 to rise relative to the lower cavity of the guide sleeve 321 to compress the adjustment spring 333 until the output end of the lifting power source remains in a high position. Then, each pair of clamping jaws 62 of the clamping cylinder of the second positioning assembly 60 clamps in the center, so that the second direction of the tank body is reliably positioned. After the operation is completed at the corresponding workstation, the clamping jaws 62 of the clamping cylinder are loosened, the lifting power source descends, and the adjustment spring 333 is reset, thereby driving the clamping jaw cylinder and the guide bevel 52 to descend and reset. Then, the operation is cyclically performed in sequence. The first positioning assembly 50 ensures that the first direction of the tank body is accurately and reliably positioned, and the second positioning assembly 60 ensures that the second direction of the tank body is accurately and reliably positioned. It integrates the positioning mechanism and the tray mechanism of the tank body into one, which simplifies the layout of the production line, reduces the difficulty of production line allocation, and makes the positioning of the tank body accurate and reliable.

[0013] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0014] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A tray mechanism for a can production line, characterized in that: It includes: A tray plate, which is arranged to cover the outer circumference of the lower surface of the corresponding tank body; Center support assembly; Lifting components; Bottom guide plate; a pair of first positioning components; and a pair of second positioning components; A first positioning assembly is provided at the width center position of one pair of sides of the pallet plate, and a second positioning assembly is provided at the width center position of the other pair of sides of the pallet plate. The top mechanism of the central support assembly is fixedly connected to the center position of the pallet plate, and the bottom of the central support assembly is externally connected to a production line bracket mechanism fixed in position. A jacking assembly is provided in the central cavity of the central support assembly, and the bottom of the jacking assembly passes through the bottom guide plate and is externally connected to an output end of a jacking power source. The lifting carriers of the first and second positioning assemblies are fixedly connected to the upper output end of the jacking assembly.

2. The tray mechanism for a can production line according to claim 1, characterized in that: The first positioning assembly includes a first guide block with a fixed position and a guide bevel block with lifting and lowering adjustment. The first guide blocks are respectively fixed to the width center position area of ​​the upper surface of each side of one pair of sides of the pallet plate. The inner side of the first guide block is a guide plate, and the guide plate is a long strip. The pallet plate is provided with a first avoidance groove corresponding to the position of the guide bevel block. The guide bevel block includes a guide bevel edge, and the guide bevel edge is a structure that gradually approaches the inner side of the guide plate from top to bottom. The guide bevel block is located in the space of the first avoidance groove, and the bottom of the guide bevel block is fixed to the lower connecting plate.

3. The tray mechanism for a can production line according to claim 2, characterized in that: The central areas of the two groups of lower connecting plates of the first positioning assemblies are connected to form an integrated lower connecting plate assembly. When the tank body is not positioned, a movable gap is left between the upper surface of the lower connecting plate assembly and the lower surface of the pallet plate. The central area of ​​the lower connecting plate assembly is fixedly connected to the upper output end of the jacking assembly.

4. The tray mechanism for a can production line according to claim 2, characterized in that: The upper portion of the inner side of the guide plate is a guide edge which is inclined from top to bottom toward the center.

5. The tray mechanism for a can production line according to claim 2, characterized in that: The spacing between the areas below the guide plates of the two pairs of first positioning assemblies is the set outer spacing in the first direction of the tank body. When the guiding bevel blocks of the first positioning assemblies are lifted up, they can reliably clamp the inner wall of the tank body according to the thickness of the tank body.

6. The tray mechanism for a can production line according to claim 3, characterized in that: The second positioning component is a clamping cylinder, which includes a cylinder seat and a pair of clamping jaws. A second avoidance groove is provided on each side of the central area in the width direction of the other pair of sides of the pallet plate. The second avoidance groove is a long strip structure. Side convex connecting frames are provided on the other two sides of the lower connecting plate assembly. The cylinder seat is fixed to the side convex connecting frame. The pair of clamping jaws respectively correspond to the spatial settings of the second avoidance grooves at corresponding positions. The pair of clamping jaws are centered and positioned to fit the pair of sides in the second direction of the tank body during operation.

7. The tray mechanism for a can production line according to claim 3, characterized in that: The central support assembly includes side support connecting frames, a connecting flange, and a lower connecting sleeve on both sides. The upper part of the connecting flange is provided with side support connecting frames arranged on both sides. The upper part of the side support connecting frame is fixedly connected to the central area of ​​the pallet plate by fasteners. The lower part of the connecting flange is fixedly sleeved on the upper part of the lower connecting sleeve. The outer periphery of the connecting flange is fixedly connected to the production line bracket mechanism in a fixed position by long bolts. The central hole of the lower connecting sleeve is used to install the components of the jacking assembly.

8. The tray mechanism for a can production line according to claim 7, characterized in that: The lifting assembly includes a connecting and pressing assembly, a guide sleeve assembly, and a lower convex connecting assembly in sequence from top to bottom. The connecting and pressing assembly is used to fix the central area of ​​the lower connecting plate assembly and the side convex connecting frames on both sides. The lower part of the connecting and pressing assembly is attached to the central upper surface of the guide sleeve assembly.

9. The tray mechanism for a can production line according to claim 8, characterized in that: The connecting pressing assembly includes guide blocks on both sides, which are respectively embedded in the inner cavity of the corresponding side supporting connecting frame, and the convex parts of the guide blocks are embedded in the corresponding guide track cavities of the corresponding side supporting connecting frame. The bottom of the side supporting connecting frame is also provided with an upper convex guide column, and the guide column is inserted into the guide track groove of the guide block. The guide blocks are respectively fixed to the corresponding positions of the lower connecting plate assembly.

10. The tray mechanism for a can production line according to claim 8, characterized in that: The guide sleeve assembly includes a guide sleeve, an upper bearing, and a lower bearing. A limiting ring is arranged on the upper portion of the guide sleeve. The guide sleeve passes through the central hole of the lower connecting sleeve and is linearly guided and connected via the upper bearing and the lower bearing respectively. The lower portion of the guide sleeve is fixedly inserted into the central positioning hole of the bottom guide plate. A height spacing is left between the limiting ring of the guide sleeve and the connecting flange.

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