A tinplate coiling pressure arm assembly and a coiling device

Abstract

The present invention discloses a coiling pressing arm assembly and a coiling device for tinplate sheets, which relates to the technical field of tinplate sheet production equipment. The coiling pressing arm assembly includes a processing table, a moving block is horizontally slidably connected to the processing table, a plurality of pressing arm plates are installed in the moving block through a plurality of connecting springs, and a plurality of clamping assemblies are further arranged in the moving block, and each clamping assembly is in clamping cooperation with the corresponding pressing arm plate; a cutting assembly and a bundling mechanism are also included, and both are arranged on the processing table. By setting the clamping assemblies to separately control the states of the pressing arm plates, the bundling mechanism can move to drive the blocking pressing arm assembly to move, while the remaining pressing arm assemblies are in a pressing state, so as to ensure that the coiled tinplate sheets are tightly coiled during bundling, improving the coiling state of the tinplate sheets. During the moving cutting stroke of the cutting assembly, through the cooperation between the connecting assembly and the driving mechanism, the coiled tinplate sheets can be bundled in time after slitting, improving the coiling effect.

Description

Technical Field

[0001] The present invention relates to the technical field of tinplate production equipment, and particularly relates to a winding pressure arm assembly and a winding device for tinplate. Background Art

[0002] Tinplate refers to cold-rolled thin steel plates with a very thin layer of metallic tin plated on both sides. It combines the hardness and strength of steel with the weldability, corrosion resistance, and bright appearance of tin. Tinplate has the advantages of being odorless, non-toxic, lightweight, and easy to process and form. Printing different patterns can also beautify products, so it has been widely used in industries such as the food canning industry, electronic devices, and chemical paints. During the production process of tinplate, after the strip steel is tinned and softened, in order to prevent the tin layer from oxidizing and turning yellow during storage or paint baking of the tinplate, and at the same time improve the sulfur resistance and other properties of the tinplate, the tinplate needs to be passivated.

[0003] When winding tinplate, a pressure arm assembly is required to wind and fix the wound thin plate to prevent the thin plate roll from loosening or sliding, which affects subsequent packaging. The existing thin plate winding pressure arms are generally in the shape of round rollers or flat plates and are pressed against one side of the wound thin plate roll. When it is necessary to bandage the wound thin plate roll after winding, the entire pressure arm assembly needs to be removed. Otherwise, the bundling mechanism moves to the surface of the thin plate roll to achieve bundling. Moreover, after the pressure arm assembly is removed, the restraining force disappears, and the thin plate roll may loosen, which has certain deficiencies. Summary of the Invention

[0004] The purpose of the present invention is to provide a winding pressure arm assembly and a winding device for tinplate to solve the above deficiencies in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A winding pressure arm assembly for tinplate includes a processing table, a moving block is horizontally slidably connected to the processing table, a plurality of pressure arm plates are installed in the moving block through a plurality of connecting springs, and a plurality of clamping assemblies are also arranged in the moving block. Each clamping assembly is in clamping cooperation with the corresponding pressure arm plate; it also includes a cutting assembly and a bundling mechanism, both of which are arranged on the processing table; after winding, the cutting assembly has the following three working positions:

[0006] The first working position: The cutting assembly moves to cut the tinplate, and drives the bundling mechanism to move to the wound thin plate roll through a connecting component. When the bundling mechanism moves, the unlocking mechanism sequentially triggers the unlocking of the clamping assemblies. After the bundling mechanism completes the movement, the clamping assemblies fix the pressure arm plates again to achieve extrusion of the thin plate roll.

[0007] The second working position: The cutting assembly resets, and drives the bundling mechanism to move to bundle the wound tinplate roll through a driving mechanism.

[0008] In the third working station, the cutting assembly continues to reset, and the bundling mechanism is driven to reset again through the connecting assembly.

[0009] As a further description of the above technical solution:

[0010] The clamping assembly includes a cross frame rotatably connected to the moving block, and a first moving plate and a second moving plate are respectively arranged on both sides of the cross frame; both the first moving plate and the second moving plate are slidably connected in the moving block, a limiting column is fixedly connected to the first moving plate, an extension rod is fixedly connected to the second moving plate, a conical block is fixedly connected to one end of the extension rod, and a support spring is fixedly connected between the conical block and the moving block. The elastic force of the support spring drives the limiting column to be clamped and matched with the corresponding pressing arm plate.

[0011] As a further description of the above technical solution:

[0012] The cutting assembly includes a limiting frame fixedly connected to the processing table, an installation frame is slidably connected in the limiting frame, and a slitting knife is fixedly connected in the installation frame.

[0013] As a further description of the above technical solution:

[0014] The bundling mechanism includes two bundling frames slidably connected to the processing table, and a rotating rod is rotatably connected in each of the two bundling frames; a clamping member is fixedly connected to each of the two rotating rods, a bundling wire is arranged on each of the two clamping members, and a synchronization assembly is arranged between the two bundling frames.

[0015] As a further description of the above technical solution:

[0016] The synchronization assembly includes a transmission plate rotatably connected to the processing table, transmission strips are rotatably connected to both sides of the transmission plate, and the two transmission strips are respectively rotatably connected to the corresponding bundling frames.

[0017] As a further description of the above technical solution:

[0018] The unlocking mechanism includes a double-sided inclined plate and two wedge-shaped blocks fixedly connected to the bundling frame; the double-sided inclined plate contacts the corresponding conical block during its movement stroke, and first inclined grooves are opened on both sides of each pressing arm plate, and the wedge-shaped block contacts the corresponding first inclined groove during its movement stroke.

[0019] As a further description of the above technical solution:

[0020] The driving mechanism includes a mounting plate fixedly connected to the slitting knife, and an incomplete toothed plate is fixedly connected to the mounting plate; an auxiliary rod is rotatably connected to the bundling frame, a disc is fixedly connected to the auxiliary rod, a gear ring is rotatably connected to the auxiliary rod, the incomplete toothed plate contacts the gear ring during its movement stroke, a belt is arranged between the auxiliary rod and the rotating rod, and a one-way component is arranged between the gear ring and the disc.

[0021] As a further description of the above technical solution:

[0022] The one-way component includes a plurality of T-shaped wedges slidably connected vertically in the gear ring, and a suspension spring is fixedly connected between each T-shaped wedge and the gear ring; a plurality of second inclined grooves are formed in the disc, and each T-shaped wedge is in snap-fit connection with the corresponding second inclined groove.

[0023] As a further description of the above technical solution:

[0024] The connecting component includes an L-shaped baffle and a reset plate fixedly connected to one side of the bundling frame, and the bundling frame contacts the L-shaped baffle and the reset plate in sequence during its movement stroke.

[0025] A winding device, the winding device includes the above-mentioned tinplate winding pressing arm assembly.

[0026] In the above technical solution, the beneficial effects of a tinplate winding pressing arm assembly and a winding device provided by the present invention are as follows:

[0027] The present invention controls the state of the pressing arm plate separately through the cooperation of the processing table, the moving block, the connecting spring, the pressing arm plate, the clamping component, the cutting component, the bundling mechanism, the connecting component, the unlocking mechanism and the driving mechanism. The bundling mechanism moves to drive the blocking pressing arm assembly to move, while the remaining pressing arm assemblies are in a squeezed state to ensure that the wound tinplate coils are tightly wound during bundling, improving the winding state of the tinplate. During the movement and cutting stroke of the cutting component, through the cooperation between the connecting component and the driving mechanism, the tinplate coil can be bundled in time after slitting, improving the winding effect.

[0028] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not intended to limit the present disclosure.

[0029] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Description of the Drawings

[0030] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for use in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other accompanying drawings can also be obtained based on these drawings.

[0031] Figure 1 Schematic diagram of the overall structure provided by the embodiment of the present invention;

[0032] Figure 2 Another perspective view of the overall structure provided by the embodiment of the present invention;

[0033] Figure 3 Schematic diagram of the connection structure between the moving block and the pressing arm plate provided by the embodiment of the present invention;

[0034] Figure 4 Schematic cross-sectional view of the local structure provided by the embodiment of the present invention;

[0035] Figure 5 Schematic longitudinal cross-sectional view of the moving block structure provided by the embodiment of the present invention;

[0036] Figure 6 Schematic diagram of the connection structure of the bundling mechanism, cutting assembly, driving mechanism, and connection assembly provided by the embodiment of the present invention;

[0037] Figure 7 Schematic diagram of the local structure of the bundling mechanism provided by the embodiment of the present invention;

[0038] Figure 8 is Figure 5 Enlarged view of part A in

[0039] Figure 9 is Figure 6 Enlarged view of part B in

[0040] Figure 10 is Figure 7 Enlarged view of part C in

[0041] Explanation of reference numerals:

[0042] 1. Processing table; 11. Moving block; 12. Connecting spring; 13. Pressing arm plate; 21. Cross frame; 22. First moving plate; 23. Second moving plate; 24. Limit post; 25. Extension rod; 26. Cone block; 27. Support spring; 31. Limit frame; 32. Mounting frame; 33. Slitting knife; 41. Strapping frame; 42. Rotating rod; 43. Clamping member; 44. Strapping wire; 51. Transmission plate; 52. Transmission strip; 61. Double-sided inclined plate; 62. Wedge block; 63. First inclined groove; 71. Mounting plate; 72. Incomplete toothed plate; 73. Auxiliary rod; 74. Disk; 75. Gear ring; 76. Belt; 81. T-shaped wedge block; 82. Suspension spring; 83. Second inclined groove; 91. L-shaped baffle; 92. Reset plate. Detailed implementation manners

[0043] To make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some but not all of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0044] Please refer to Figure 1-10 , a tinplate winding pressing arm assembly provided in this embodiment includes a processing table 1. A moving block 11 is horizontally slidably connected to the processing table 1. The processing table 1 is an existing tinplate winding frame. The processing table 1 needs to be provided with a clamping portion for installing a tinplate winding roller. The setting of this clamping portion is also an existing and most basic setting, and will not be elaborated here too much. The moving block 11 on the processing table 1 is driven to move by an external driving source, and stops moving and maintains the state before stopping. A plurality of pressing arm plates 13 are installed in the moving block 11 through a plurality of connecting springs 12. A groove for the pressing arm plate 13 to move is provided on the moving block 11. The elastic force of the connecting spring 12 drives the pressing arm plate 13 to move outward from the moving block 11. A plurality of sets of clamping assemblies are also provided in the moving block 11. Each clamping assembly is in clamping cooperation with the corresponding pressing arm plate 13. The pressing arm plate 13 can be fixed inside the moving block 11 through the clamping assembly, so as to improve the stability of the pressing arm plate 13 when extruding the tinplate; it also includes a cutting assembly and a bundling mechanism, both of which are arranged on the processing table 1; after winding, the cutting assembly has the following three working positions:

[0045] At the first station, the cutting assembly moves to cut the tinned sheet. When a certain amount of the tinned sheet is wound, the cutting assembly is driven to move by starting an external drive source to cut the tinned sheet, and the bundling mechanism is driven to move to the wound sheet roll through the connecting assembly. Through the cooperation of the connecting assembly, the bundling mechanism is driven to move to the bundling position during the cutting stroke of the cutting assembly, reducing the use of power sources. The movement of the bundling mechanism sequentially triggers the unlocking of the clamping assembly through the unlocking mechanism. When the movement of the bundling mechanism is completed, the clamping assembly fixes the pressing arm plate 13 again to realize the extrusion of the sheet roll. When the bundling assembly moves, it will trigger the unlocking and movement of the pressing arm plate 13 that it is about to contact through the unlocking mechanism so that the bundling assembly can pass smoothly. After the bundling assembly moves, the pressing arm plate 13 is reset under the action of the connecting spring 12 and is fixed by the clamping assembly again to continue to extrude the tinned sheet roll. Moreover, the pressing arm plate 13 is triggered individually. During the movement of the bundling assembly, the other pressing arm plates 13 can continue to maintain the extrusion state to prevent the tinned sheet roll from loosening during bundling;

[0046] At the second station, the cutting assembly resets, and the bundling mechanism is driven to move by the driving mechanism to bundle the wound tinned sheet roll. The movement of the cutting assembly reset can drive the bundling mechanism to move, reducing the overall energy consumption of the device again. Without the cooperation of multiple control devices, the bundling and winding operations can be carried out;

[0047] At the third station, the cutting assembly continues to reset, and the bundling mechanism is driven to reset again through the connecting assembly. After bundling is completed, the cutting assembly moves and contacts the connecting assembly that controls the movement of the bundling assembly, and drives the bundling assembly to reset, facilitating the next repeated bundling operation.

[0048] In the further provided embodiment of the present invention, the clamping assembly includes a cross frame 21 rotatably connected to the moving block 11. First moving plates 22 and second moving plates 23 are respectively arranged on both sides of the cross frame 21. The connection points of the cross frame 21 with the first moving plates 22 and the second moving plates 23 are rotational and sliding; the first moving plates 22 and the second moving plates 23 are both slidably connected in the moving block 11. A limiting column 24 is fixedly connected to the first moving plate 22, and an extension rod 25 is fixedly connected to the second moving plate 23. A conical block 26 is fixedly connected to one end of the extension rod 25. A support spring 27 is fixedly connected between the conical block 26 and the moving block 11. The elastic force of the support spring 27 drives the limiting column 24 to be clamped and matched with the corresponding pressing arm plate 13. A hole adapted to the limiting column 24 is provided on the pressing arm plate 13. By clamping the limiting column 24 on the pressing arm plate 13, the movement of the pressing arm plate 13 can be restricted, and the stability of the extrusion of the tinned sheet by the pressing arm plate 13 can be improved.

[0049] In an embodiment further provided by the present invention, the cutting assembly includes a limiting frame 31 fixedly connected to the processing table 1. An installation frame 32 is slidably connected in the limiting frame 31, and a slitting knife 33 is fixedly connected in the installation frame 32. By providing the limiting frame 31 to limit the movement of the installation frame 32, the slitting knife 33 can also be detachably installed on the installation frame 32.

[0050] In an embodiment provided by the present invention, the bundling mechanism includes two bundling frames 41 slidably connected to the processing table 1. For the specific shape of the bundling frame 41, reference can be made to the attached Figure 6 drawings. Rotating rods 42 are rotatably connected in both of the two bundling frames 41; clamping members 43 are fixedly connected to both of the two rotating rods 42, and bundling wires 44 are arranged on both of the two clamping members 43. The clamping members 43 can adopt existing clamping devices that can clamp the bundling wires 44, and the bundling wires 44 can be selected with appropriate materials according to specific usage requirements. A synchronization component is arranged between the two bundling frames 41.

[0051] Specifically, the synchronization component includes a transmission plate 51 rotatably connected to the processing table 1. Transmission bars 52 are rotatably connected to both sides of the transmission plate 51, and the two transmission bars 52 are respectively rotatably connected to the corresponding bundling frames 41. By providing the transmission plate 51 and the transmission bars 52, the bundling frames 41 on both sides can be driven to move towards each other synchronously, so as to bundle different parts of the wound tinplate coil.

[0052] In an embodiment further provided by the present invention, the unlocking mechanism includes a double-sided inclined plate 61 fixedly connected to the bundling frame 41 and two wedge-shaped blocks 62; during the movement stroke of the double-sided inclined plate 61, it contacts the corresponding conical block 26. First inclined grooves 63 are opened on both sides of each pressing arm plate 13, and during the movement stroke of the wedge-shaped block 62, it contacts the corresponding first inclined groove 63. Both sides of the double-sided inclined plate 61 are provided in an inclined surface shape, which is convenient for abutting against the conical block 26 to move it upward when contacting the conical block 26. The two wedge-shaped blocks 62 are respectively arranged on both sides of the bundling frame 41, so that when the bundling frame 41 moves to the bundling position and during the stroke of returning to the original position after bundling, the clamping component can be triggered to move and unlock. One side of the two wedge-shaped blocks 62 is on the same plane as the side of the bundling frame 41, so that the pressing arm plate 13 abutted by the wedge-shaped block 62 can abut against the bundling frame 41 until the bundling frame 41 completely passes through.

[0053] Further, the driving mechanism includes a mounting plate 71 fixedly connected to the slitting knife 33. An incomplete toothed plate 72 is fixedly connected to the mounting plate 71. The mounting plate 71 and the incomplete toothed plate 72 are both horizontally slidable on the processing table 1 to improve the stability of the incomplete toothed plate 72 during movement. An auxiliary rod 73 is rotatably connected to the bundling frame 41. A disc 74 is fixedly connected to the auxiliary rod 73. A gear ring 75 is rotatably connected to the auxiliary rod 73. The incomplete toothed plate 72 contacts the gear ring 75 during its movement stroke. The distance between the tooth gaps on the incomplete toothed plate 72 needs to be consistent with the distance between two gear rings 75. A belt 76 is provided between the auxiliary rod 73 and the rotating rod 42. Sprockets adapted to the belt 76 are provided on both the auxiliary rod 73 and the rotating rod 42. A one-way assembly is provided between the gear ring 75 and the disc 74.

[0054] Furthermore, the one-way assembly includes a plurality of T-shaped wedges 81 vertically slidably connected in the gear ring 75. A suspension spring 82 is fixedly connected between each T-shaped wedge 81 and the gear ring 75. A plurality of second inclined grooves 83 are formed in the disc 74. Each T-shaped wedge 81 is in snap-fit with the corresponding second inclined groove 83. The gear ring 75 needs to be provided with a groove adapted to the T-shaped wedge 81. And the plurality of T-shaped wedges 81 are arranged in an annular array with the auxiliary rod 73 as the center. One side of the T-shaped wedge 81 and one side of the second inclined groove 83 are both provided in an inclined plane shape, and the other corresponding side is provided in a flat plane shape.

[0055] In the further embodiment provided by the present invention, the connection assembly includes an L-shaped baffle 91 and a reset plate 92 fixedly connected to one side of the bundling frame 41. The bundling frame 41 contacts the L-shaped baffle 91 and the reset plate 92 in sequence during its movement stroke. The cutting assembly will contact the L-shaped baffle 91 only after moving a certain distance to one side. The certain distance that the cutting assembly moves is the distance at which the cutting assembly cuts off the connection of the tinplate. The movement of the L-shaped baffle 91 drives the bundling frame 41 to move synchronously, so that the reset plate 92 moves synchronously. And when the bundling frame 41 resets, it will also move a certain distance before contacting the reset plate 92. This distance is the stroke at which the cutting assembly moves through the driving mechanism to drive the bundling assembly to work and bundle the wound tinplate. The cutting assembly contacts the reset plate 92 and also drives the L-shaped baffle 91 to reset through the bundling frame 41.

[0056] A winding device, the winding device includes the above-mentioned tinplate winding pressing arm assembly.

[0057] Working principle: During operation, the roll to be wound is installed on the processing table 1. By starting the external drive source, the moving block 11 is driven to move until the pressing arm plate 13 on the moving block 11 contacts the tinned sheet wound on the roll. During the winding process, the external drive source drives the moving block 11 to move slowly, and it is necessary to keep the pressing arm plate 13 always in contact with the outer side of the continuously growing tinned sheet roll. When the winding is completed, by driving the external drive source, the mounting frame 32 in the cutting assembly drives the slitting knife 33 to move, cutting the connected tinned sheet. After cutting, the mounting frame 32 drives the slitting knife 33 to move a certain distance. At this time, when the mounting frame 32 moves, it will contact the L-shaped baffle 91 and drive the L-shaped baffle 91 to move synchronously. The movement of the L-shaped baffle 91 will pull the bundling frame 41 on one side to move, and the bundling frame 41 will move towards the wound tinned sheet roll;

[0058] When the bundling frame 41 moves, the double-sided inclined plate 61 fixed on it will contact the conical block 26 on the extension rod 25 and squeeze the conical block 26 to drive the extension rod 25 to move into the moving block 11. At this time, the support spring 27 connected between the conical block 26 and the moving block 11 is compressed. When the extension rod 25 enters the moving block 11, it will move through the second moving plate 23 connected to it, thereby driving the cross frame 21 to rotate and driving the first moving plate 22 connected to the other end to move towards each other synchronously. The movement of the first moving plate 22 drives the limit post 24 fixed on it to move downward and separate from the pressing arm plate 13. At this time, the pressing arm plate 13 is only supported by the connecting spring 12. Synchronously, the wedge-shaped block 62 connected to the bundling frame 41 will contact the first inclined groove 63 on the pressing arm plate 13 and push the pressing arm plate 13 to contract towards the inside of the moving block 11. At the same time, the bundling frame 41 continues to move. The pressed pressing arm plate 13 will move from the wedge-shaped block 62 on one side to the bundling frame 41 and then move to the side of the wedge-shaped block 62 on the other side until the bundling frame 41 drives the wedge-shaped block 62 to completely separate. At this time, the restoring force of the connecting spring 12 drives the pressing arm plate 13 to press against the tinned sheet roll again. Then the double-sided inclined plate 61 separates from the conical block 26. At this time, the conical block 26 resets under the restoring force of the support spring 27 and, through the cooperation of the first moving plate 22, the second moving plate 23 and the cross frame 21, drives the limit post 24 to be stuck on the pressing arm plate 13 again to fix it. Moreover, when the cutting assembly moves during cutting, it will drive the incomplete toothed plate 72 to move through the mounting plate 71. The movement of the incomplete toothed plate 72 contacts the gear ring 75 arranged on the auxiliary rod 73 and drives the gear ring 75 to rotate. When the gear ring 75 rotates, the T-shaped wedge block 81 arranged inside it rotates synchronously. Since the rotation direction of the gear ring 75 is such that the inclined surface of the T-shaped wedge block 81 contacts the inclined surface of the second inclined groove 83, at this time, the T-shaped wedge block 81 will squeeze the suspension spring 82 and move upward, separating from the second inclined groove 83. At this time, the rotation of the gear ring 75 does not drive the auxiliary rod 73 to rotate synchronously;

[0059] After the bundling frame 41 is moved to a proper position, the driving source then drives the cutting assembly to move in the reverse direction and reset. At this time, the cutting assembly is not in contact with the L-shaped baffle 91. The cutting assembly drives the incomplete toothed plate 72 to reset through the mounting plate 71. At this time, the incomplete toothed plate 72 contacts the gear ring 75 again. The direction in which the incomplete toothed plate 72 drives the gear ring 75 to rotate is such that the plane side of the T-shaped wedge block 81 contacts the plane of the second inclined groove 83. Blocked by the T-shaped wedge block 81, the auxiliary rod 73 rotates as the gear ring 75 rotates. The rotation of the auxiliary rod 73 drives the rotating rod 42 to rotate through the belt 76. The rotation of the rotating rod 42 drives the clamping member 43 to rotate, so that the binding wire 44 can be twisted to bundle the wound tinplate coil. After the bundling is completed, the clamping member 43 is separated from the binding wire 44. Driven by the bundling frame 41, the clamping member 43 moves in the reset direction. At this time, the bundling frame 41 will contact the reset plate 92 and push the reset plate 92 to move. The movement of the reset plate 92 drives the bundling frame 41 and the L-shaped baffle 91 to move and reset synchronously.

[0060] Only some exemplary embodiments of the present invention have been described by way of illustration. Without doubt, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A tinplate coiling and pressing arm assembly, comprising a processing table (1), characterized in that: A moving block (11) is slidably connected to the processing table (1) in a transverse manner, a plurality of pressure arm plates (13) are installed in the moving block (11) via a plurality of connecting springs (12), and a plurality of groups of clamping components are also arranged in the moving block (11), each of the clamping components is clamped and matched with a corresponding pressure arm plate (13); It also includes a cutting assembly and a bundling mechanism, both of which are arranged on the processing table (1); After winding, the cutting assembly has the following three stations: At the first workstation, the cutting assembly moves to cut the tin-plated sheet, and drives the strapping mechanism to move onto the rolled sheet roll through the connecting assembly. The strapping mechanism moves and triggers the unlocking of the clamping assembly in turn through the unlocking mechanism. When the strapping mechanism has completed its movement, the clamping assembly fixes the pressure arm plate (13) again to achieve squeezing of the sheet roll. At the second station, the cutting assembly is reset, and the driving mechanism drives the bundling mechanism to move and bundle the wound tinplate coils; At the third station, the cutting assembly continues to reset, and the strapping mechanism is driven to reset again through the connecting assembly.

2. The tinplate coiling and pressing arm assembly according to claim 1, characterized in that: The clamping assembly comprises a cross frame (21) rotatably connected to the moving block (11), and a first moving plate (22) and a second moving plate (23) are respectively provided on two sides of the cross frame (21); The first movable plate (22) and the second movable plate (23) are both slidably connected in the movable block (11); a limiting column (24) is fixedly connected to the first movable plate (22); an extension rod (25) is fixedly connected to the second movable plate (23); one end of the extension rod (25) is fixedly connected to a conical block (26); a support spring (27) is fixedly connected between the conical block (26) and the movable block (11); the elastic force of the support spring (27) drives the limiting column (24) to engage with the corresponding pressure arm plate (13).

3. The tinplate coiling and pressing arm assembly according to claim 1, characterized in that: The cutting assembly comprises a limit frame (31) fixedly connected to the processing table (1), a mounting frame (32) being slidably connected to the limit frame (31), and a slitting knife (33) being fixedly connected to the mounting frame (32).

4. The tinplate coiling and pressing arm assembly according to claim 3, characterized in that: The bundling mechanism comprises two bundling frames (41) slidably connected to the processing table (1), and a rotating rod (42) is rotatably connected to each of the two bundling frames (41); The two rotating rods (42) are both fixedly connected with a clamping member (43), the two clamping members (43) are both provided with a tying wire (44), and a synchronization component is provided between the two tying frames (41).

5. The tinplate coiling and pressing arm assembly according to claim 4, characterized in that: The synchronization component comprises a transmission plate (51) rotatably connected to the processing table (1), and transmission bars (52) are rotatably connected to both sides of the transmission plate (51), and the two transmission bars (52) are respectively rotatably connected to corresponding bundling frames (41).

6. The tinplate coiling and pressing arm assembly according to claim 2, characterized in that: The unlocking mechanism comprises a double-sided inclined plate (61) and two wedge-shaped blocks (62) fixedly connected to the bundling frame (41); The double-sided inclined plate (61) contacts the corresponding conical block (26) during its movement, and first inclined grooves (63) are provided on both sides of each of the pressure arm plates (13). The wedge-shaped block (62) contacts the corresponding first inclined grooves (63) during its movement.

7. The tinplate coiling and pressing arm assembly according to claim 4, characterized in that: The driving mechanism comprises a mounting plate (71) fixedly connected to the slitting knife (33), and an incomplete tooth plate (72) is fixedly connected to the mounting plate (71); An auxiliary rod (73) is rotatably connected to the bundling frame (41), a disc (74) is fixedly connected to the auxiliary rod (73), a gear ring (75) is rotatably connected to the auxiliary rod (73), the incomplete tooth plate (72) contacts the gear ring (75) during its movement, a belt (76) is provided between the auxiliary rod (73) and the rotating rod (42), and a one-way component is provided between the gear ring (75) and the disc (74).

8. The tinplate coiling and pressing arm assembly according to claim 7, characterized in that: The one-way assembly comprises a plurality of T-shaped wedges (81) vertically slidably connected in the gear ring (75), and a suspension spring (82) is fixedly connected between each of the T-shaped wedges (81) and the gear ring (75); The circular disk (74) is provided with a plurality of second inclined grooves (83), and each of the T-shaped wedge blocks (81) is engaged with a corresponding second inclined groove (83).

9. The tinplate coiling and pressing arm assembly according to claim 4, characterized in that: The connection assembly comprises an L-shaped baffle plate (91) and a reset plate (92) fixedly connected to a bundling frame (41) on one side; the bundling frame (41) contacts the L-shaped baffle plate (91) and the reset plate (92) in sequence during its movement.

10. A winding device, characterized in that: The winding device comprises a tinplate winding pressure arm assembly as described in any one of claims 1 to 9.

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