Metal tin-plated sheet shearing device

Abstract

The invention discloses a metal tin-plated thin plate shearing device, and relates to the technical field of food packaging production, the metal tin-plated thin plate shearing device comprises an auxiliary mechanism, the auxiliary mechanism comprises a plurality of groups of nylon chain plates, side plates cover the two sides of the nylon chain plates, the middle parts of the side plates are rotatably mounted on a disc shearing roller, and electromagnets are fixedly connected to the inner side surfaces of the nylon chain plates. Through the nylon chain plate located around the disc shearing roller, when a strip reaches the adsorption position close to the shearing mechanism, the strip is adsorbed to the nylon chain plate, the feeding speed of the strip is ensured, and the problems of tearing, deformation and the like of the shearing position caused by asynchronous movement are avoided; and meanwhile, due to the adsorption of the electromagnet, the situation that the cut part of the front end of the strip droops due to the influence of gravity, the contact angle between the cut part of the strip and the circle shear is changed, burrs and shoulder collapse occur on the cut end face, and stacking and follow-up edge rolling machining of tank pieces are affected is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of food packaging production, in particular to a metal tin-plated sheet shearing device. Background Art

[0002] Tinplate, also known as tinplate, is widely used in food packaging fields such as canned food containers, beverage cans, and milk powder cans due to its excellent corrosion resistance, workability, and aesthetics. When processing the above-mentioned canned items, the steel coils are first punched and cut into rectangular sheets according to specifications, and then undergo appearance processing such as color printing. After that, the printed rectangular sheets are sheared to cut the rectangular sheets into strips, and then sheared again to obtain can body sheets. The stacked can body sheets are then transported to the rolling and welding equipment to process the can body.

[0003] When the tin-coated steel sheet is pushed between the disc shears by a chain or other pushing mechanism, a low-speed push is used to ensure that the strip can be stably transported into the position of the disc shears. As a result, the speed of the pushing mechanism must be significantly lower than the rotation speed of the disc shears. Since the speed of the disc shears is faster than the pushing mechanism, the sheet will be dragged forward by the disc shears rapidly. When the moving speed of the sheet suddenly increases, it is easy for it to slip in the shearing area, causing the burrs on the sheared surface to become larger and making the shearing results unstable. At the same time, because the sheet is dragged by the disc shears, when the sheet is sheared into multiple can body slices and separated from the disc shears, the can body slices will leap forward due to inertia. At this time, when the can body slice contacts the unloading mechanism and other can body slices, it will cause friction with the unloading chute and other can body slices. At this time, the burrs on the sheared edge will rub against other parts, thereby scratching the tin coating on the surface of other workpieces. Summary of the Invention

[0004] The object of the present invention is to provide a metal tin-plated sheet shearing device to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a metal tin-plated sheet shearing device, comprising a transport mechanism, the transport mechanism comprising a frame and a loading platform, a shearing mechanism is provided at one end of the frame, the shearing mechanism comprises two disc shearing rollers arranged up and down, and further comprising: an auxiliary mechanism, which comprises a plurality of groups of nylon chain plates, both sides of the nylon chain plates are covered with side plates, the middle part of the side plates are rotatably mounted on the disc shearing rollers, the inner side surface of the nylon plate of the nylon chain plate is fixedly connected to an electromagnet, the inner side surface of the side plate is fixedly connected to two trigger elements, the trigger element controls the start and stop of the electromagnet, and the nylon chain One end of the plate is located directly above the loading platform, and the outer side surface of the side plate is fixedly connected to a fixing frame passing through it, and the bottom surface of the fixing frame located inside the nylon chain plate is provided with a ferromagnetic block, and the bottom surface of the fixing frame is fixedly connected to a vertical slide, and a pressure rod is slidably connected inside the vertical slide, and the electromagnet is located below the ferromagnetic block and attracts the ferromagnetic block to drive the pressure rod to slide upward, and a pulling block is rotatably installed on the rotating axis of the pressure rod; the pressure rod is in a vertical state when it is at the bottom, and it rotates to a horizontal state when it approaches the end of the upward sliding stroke, and the pressure rod is in a horizontal state when it starts to slide downward, and it rotates to a vertical state when it approaches the end of the downward sliding stroke.

[0006] Preferably, the electromagnets inside the nylon chain plate are divided into multiple magnet groups, the nylon plates between two adjacent magnet groups are not fixedly connected to the electromagnets, and the electromagnets in the magnet groups are started and stopped synchronously.

[0007] Preferably, the two trigger elements are respectively located on both sides of the disc shear roller, the one located above the loading platform is the opening trigger, and the one close to the auxiliary mechanism is the closing trigger. The magnet group switches to the corresponding start and stop state after activating the trigger element.

[0008] Preferably, the vertical slide includes a first vertical plate and a second vertical plate, the side of the second vertical plate is provided with a vertical slide groove, the inner side of the first vertical plate is provided with a first slide groove and a second slide groove, a sliding shaft is slidably connected in the vertical slide groove, a rotating disk is fixedly sleeved on the sliding shaft, the pressure rod is fixedly sleeved on the sliding shaft, a sliding column is fixedly connected to the side of the rotating disk, the sliding shaft is slidably connected in the first slide groove, the sliding column is slidably connected in the second slide groove, the depth of the second slide groove is greater than the first slide groove, and the pulling block is slidably connected between the first vertical plate and the second vertical plate.

[0009] Preferably, the pulling block is connected to the ferromagnetic block via a rope, and the rope passes through the fixing frame and is guided by a guide roller in the fixing frame.

[0010] Preferably, a loading mechanism is provided at the rear end of the frame, and the loading mechanism includes a symmetrical linear guide rail fixedly connected to the top surface of the frame, a cross bar is connected to the slider of the symmetrical linear guide rail, and a material picking cylinder is connected to the cross bar, and a material picking rack is fixed to the telescopic end of the material picking cylinder, and a suction cup is fixed on the material picking rack, and a feeding platform is provided below the suction cup, and the feeding platform is a lifting platform.

[0011] Preferably, a motor for driving the movement of the slider of one of the linear guide rails is fixedly connected to one side of the linear guide rail, a conveyor chain is provided in the loading platform, and the loading mechanism places the workpiece on the loading platform and the workpiece is pushed toward the shearing mechanism by the conveyor chain.

[0012] Preferably, the shearing mechanism also includes a symmetrical driving bracket, the disc shearing roller is rotatably installed between the two driving brackets, the driving shaft of the nylon chain plate is rotatably installed between the two driving brackets, and a driving mechanism is provided in the driving bracket to enable the disc shearing roller and the driving shaft of the nylon chain plate to rotate synchronously.

[0013] Preferably, a material receiving mechanism is provided at the front end of the frame, and the material receiving mechanism includes a material receiving platform and a partition frame slidably connected thereto. The material receiving platform is a lifting platform, and the partition frame is located below the auxiliary mechanism. After the partition frame moves up, it is fixed and cannot slide.

[0014] Preferably, a controller is provided on one side of the shearing mechanism, and the controller is electrically connected to the electromagnet and the trigger element.

[0015] In the above technical scheme, the present invention provides a metal tin-plated sheet shearing device, which uses a nylon chain plate arranged around the disc shearing roller. When the strip reaches the adsorption position close to the shearing mechanism, the strip is adsorbed on the nylon chain plate. Since the nylon chain plate moves synchronously with the disc shearing roller, the feeding speed of the strip is ensured, and the problems of tearing and deformation at the shearing point due to asynchronous movement are avoided; at the same time, due to the adsorption of the electromagnet, the part of the front end of the strip that has been cut is prevented from sagging due to the influence of gravity, resulting in a change in the contact angle between the cut part of the strip and the disc shear, and then causing burrs and collapsed shoulders on the cut end face, affecting the stacking and subsequent rolling processing of the can body sheets. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1This is a schematic diagram of the overall structure of a metal tin-plated sheet shearing device according to the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of a transport mechanism of a metal tin-plated sheet shearing device according to the present invention;

[0019] Figure 3 This is a schematic structural diagram of a feeding mechanism of a metal tin-plated sheet shearing device according to the present invention;

[0020] Figure 4 This is a schematic structural diagram of a shearing mechanism, auxiliary mechanism and material joining mechanism of a metal tin-plated sheet shearing device of the present invention;

[0021] Figure 5 This is a schematic diagram of the internal structure of a nylon chain plate, an auxiliary mechanism of a metal tin-plated sheet shearing device according to the present invention;

[0022] Figure 6 This is a schematic structural diagram of the auxiliary mechanism portion of a metal tin-plated sheet shearing device of the present invention;

[0023] Figure 7 This is a schematic diagram of the vertical slide structure of a metal tin-plated sheet shearing device of the present invention;

[0024] Figure 8 This is a structural schematic diagram of a vertical slide of a metal tinplate shearing device according to the present invention removing a first vertical plate;

[0025] Figure 9 This is a schematic structural diagram of the inner side of the first vertical plate of a metal tin-plated sheet shearing device of the present invention.

[0026] Explanation of the accompanying drawings: 1. Transport mechanism; 11. Frame; 12. Loading platform; 13. Conveyor chain; 2. Loading mechanism; 21. Feeding platform; 22. Linear guide; 23. Material picking cylinder; 24. Suction cup; 25. Motor; 3. Shearing mechanism; 31. Driving bracket; 32. Disc shearing roller; 4. Auxiliary mechanism; 41. Nylon chain plate; 42. Side plate; 43. Vertical slide; 431. First vertical plate; 432. Second vertical plate; 433. Vertical slide; 434. Sliding shaft; 435. Pressure rod; 436. Rotating disk; 437. Slide column; 438. Pulling block; 439. First slide; 4310. Second slide; 44. Electromagnet; 45. Fixed frame; 46. Rope; 47. Ferromagnetic block; 48. Trigger element; 5. Material receiving mechanism; 51. Material receiving platform; 52. Partition frame; 6. Controller. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] like Figures 1 to 9 As shown, the metal tinned sheet shearing device of this embodiment includes a transport mechanism 1, which includes a frame 11 and a loading platform 12. A shearing mechanism 3 is provided at one end of the frame 11. The shearing mechanism 3 includes two disc shearing rollers 32 arranged vertically, and further includes:

[0029] The auxiliary mechanism 4 includes multiple sets of nylon chain plates 41. Both sides of the nylon chain plates 41 are covered with side plates 42. The width of the nylon chain plates 41 is smaller than the spacing between the two disc shears on the disc shear roller 32. The middle part of the side plates 42 is rotatably mounted on the disc shear roller 32. The inner side of the nylon plate of the nylon chain plate 41 is fixedly connected to an electromagnet 44. The inner side of the side plate 42 is fixedly connected to two trigger elements 48. The trigger element 48 controls the start and stop of the electromagnet 44. One end is located just above the loading platform 12. The outer side surface of the side plate 42 is fixedly connected to a fixing frame 45 that passes through it. The bottom surface of the fixing frame 45 located inside the nylon chain plate 41 is provided with a ferromagnetic block 47. The bottom surface of the fixing frame 45 is fixedly connected to the vertical slide 43. A pressure rod 435 is slidably connected inside the vertical slide 43. The electromagnet 44 is located below the ferromagnetic block 47 and attracts the ferromagnetic block 47 to drive the pressure rod 435 to slide upward. A pulling block 438 is rotatably installed on the rotating axis of the pressure rod 435.

[0030] The pressure rod 435 is in a vertical state when it is at the bottom, and rotates to a horizontal state when it approaches the end of the upward sliding stroke. The pressure rod 435 is in a horizontal state when it starts to slide downward, and rotates to a vertical state when it approaches the end of the downward sliding stroke.

[0031] In the present invention, by setting the nylon chain plate 41 around the disc shearing roller 32, when the strip is sheared, as the strip is pushed by the conveying chain 13, when the strip reaches the adsorption position close to the shearing mechanism 3 (that is, the position of the open trigger), the trigger element 48 just above the strip is activated by the trigger block of the internal magnet group, thereby opening the magnet group. At this time, the strip below the magnet group will be adsorbed on the nylon chain plate 41, and as the nylon chain plate 41 moves, the strip will enter between the two disc shearing rollers 32. , thereby being sheared into multiple can body slices, ensuring that the feeding speed of the strip is the same as the rotation speed of the disc shear roller 32, avoiding problems such as tearing and deformation at the shearing point due to asynchronous movement; because the strip is still adsorbed on the nylon chain plate 41 when being sheared, the stability of the strip during shearing is improved, avoiding the front end of the strip from sagging due to gravity after being cut, resulting in a change in the contact angle between the cut part of the strip and the disc shear, and causing burrs and collapsed shoulders on the cut end face, affecting the stacking and subsequent rolling processing of the can body slices.

[0032] When the pressing rod 435 slides to the highest point of the first slide groove 439, under the guidance of the second slide groove 4310, the pressing rod 435 rotates from the vertical state to the horizontal state, so that the pressing rod 435 is located above the top surface of the can body sheet. After the magnet group triggers the closing trigger, the magnet group is closed. At this time, the can body sheet is no longer attracted and falls downward. At this time, the pressing rod 435 moves downward under the driving force of its own gravity, thereby pressing the can body sheet downward, thereby replacing the parabolic motion of the can body sheet leaving the shearing mechanism 3 with the vertical motion being pressed downward, thereby preventing the surface coating of the can body sheet from being damaged due to friction between the sliding of the can body sheet and the can body sheet below.

[0033] Among them, the electromagnet 44 inside the nylon chain plate 41 is divided into multiple magnet groups. The nylon plate between two adjacent magnet groups is not fixedly connected to the electromagnet 44. The electromagnets 44 in the magnet group start and stop synchronously. The two trigger elements 48 are respectively located on both sides of the disc shear roller 32. The one located above the worktable 12 is the opening trigger, and the one close to the auxiliary mechanism 4 is the closing trigger. The magnet group switches to the corresponding start and stop state after activating the trigger element 48.

[0034] The number of electromagnets 44 in the magnet group needs to be determined according to the length of the can body sheet after the strip is cut. At the same time, the spacing between the two magnet groups needs to be determined according to the feeding frequency of the feeding mechanism 2. At the same time, the length of the nylon chain plate 41 also needs to be adjusted according to the actual situation of the workpiece.

[0035] like Figure 5 As shown, the side of the first electromagnet 44 of each magnet group has a trigger block for activating the trigger element 48. When the trigger block contacts the trigger element 48, the state of the magnet group is switched according to the trigger element 48. When the magnet group is above the stage 12 and the trigger is triggered, the magnet group opens, thereby adsorbing the strip below to the bottom surface of the nylon chain plate 41. As the nylon chain plate 41 rotates, the adsorbed strip is transported between the two disc shear rollers 32, so that the strip is cut into can body pieces. Due to the adsorption of the electromagnet 44, when the strip is sheared, its cut front end will not hang down due to the action of gravity, resulting in changes in the contact angle and pressure distribution between the cut part of the strip and the disc shear, ensuring that the feeding speed is synchronized with the rotating shear speed of the disc shear roller 32 during feeding, reducing burrs and collapsed shoulders on the cut section caused by asynchrony, and ensuring the quality of the sheared edge.

[0036] The vertical slide 43 includes a first vertical plate 431 and a second vertical plate 432. A vertical slide groove 433 is provided on the side of the second vertical plate 432. A first slide groove 439 and a second slide groove 4310 are provided on the inner side of the first vertical plate 431. A sliding shaft 434 is slidably connected in the vertical slide groove 433. A rotating disk 436 is fixedly sleeved on the sliding shaft 434. A pressure rod 435 is fixedly sleeved on the sliding shaft 434. A sliding column 437 is fixedly connected to the side of the rotating disk 436. The movable shaft 434 is slidably connected in the first slide groove 439, the slide column 437 is slidably connected in the second slide groove 4310, the depth of the second slide groove 4310 is greater than that of the first slide groove 439, the pulling block 438 is slidably connected between the first vertical plate 431 and the second vertical plate 432, and the pulling block 438 is connected to the ferromagnetic block 47 by a rope 46. The rope 46 passes through the fixed frame 45 and is guided by the guide roller in the fixed frame 45. The rope 46 is inelastic and non-ferromagnetic.

[0037] A counterweight is connected to the bottom end of the pressure rod 435, which makes the mass of the pressure rod 435 greater than the mass of the ferromagnetic block 47. Therefore, by default, the pressure rod 435 pulls the rope 46 through gravity, so that the top surface of the ferromagnetic block 47 fits against the bottom surface of the fixing frame 45.

[0038] like Figures 6 to 9As shown, after the strip is cut into can body sheets by the disc shear roller 32, as the nylon chain plate 41 continues to move, when the frontmost magnet group approaches the ferromagnetic block 47, the ferromagnetic block 47 is attracted and moves downward, and the pulling block 438 is pulled upward by the pulling of the rope 46. At this time, the upward movement of the pulling block 438 will drive the sliding shaft 434 to move upward, thereby causing the slide post 437 to slide in the second slide groove 4310, and when the sliding shaft 434 moves upward and causes the slide post 437 to slide from the straight section of the second slide groove 4310 to the top arc section, the rotating disk 436 rotates, thereby driving the sliding shaft 434 to rotate, and then driving the pressure rod 435 to rotate, and as the sliding shaft 434 slides to the top of the first slide groove 439, the slide post 437 rotates from the initial position directly above the sliding shaft 434 to the horizontal side of the sliding shaft 434, thereby causing the pressure rod 435 to rotate from a vertical state to a horizontal state. At this time, the front end of the pressure rod 435 is above the can body piece, and as the magnet group triggers the closing trigger, the magnet group is closed. At this time, the can body piece below loses the attraction of the electromagnet 44 and falls downward. At the same time, due to the closing of the magnet group, the ferromagnetic block 47 is no longer attracted downward, causing the pressure rod 435 to slide down in the vertical slide 43. In the initial sliding stage, due to the limitation of the second slide groove 4310, the pressure rod 435 still remains in a horizontal state, thereby driving the can body piece that has been separated from the adsorption state to move downward. Through the limitation of the vertical slide 43 and the partition frame 52, the parabolic motion of the can body piece leaving the shearing mechanism 3 is converted into the downward pressure of the pressure rod 435, causing the can body piece to drop vertically in the process of entering the material receiving mechanism 5, preventing the existing material receiving device from rubbing against the previous can body piece when receiving the parabolic motion can body piece, causing the tin plating layer on the surface of the can body piece to wear.

[0039] The state of the pressing rod 435 during the movement: When the pressing rod 435 starts to move upward along with the sliding shaft 434, the sliding column 437 is located at the right vertical part of the second sliding groove 4310. At this time, the pressing rod 435 is in a vertical state. When the pressing rod 435 moves upward for a distance, the sliding column 437 begins to enter the top arc section of the second sliding groove 4310 (at this time, the top height of the pressing rod 435 has exceeded the sheared tank body sheet), the pressing rod 435 rotates together with the rotation of the rotating disk 436, and rotates along with the sliding shaft 434. 34 continues to move upward, and the slide post 437, guided by the second slide groove 4310, causes the rotating disk 436 to rotate 90° compared with the initial state. At this time, the slide post 437 enters the left side of the second slide groove 4310. When the electromagnet 44 is turned off, causing the pressure rod 435 to slide down, the pressure rod 435 still maintains a horizontal state due to the limitation of the second slide groove 4310. When the slide post 437 enters the arc-shaped position below the second slide groove 4310, the pressure rod 435 rotates from the horizontal state to its initial vertical state.

[0040] Among them, a loading mechanism 2 is provided at the rear end of the frame 11, and the loading mechanism 2 includes a symmetrical linear guide rail 22 fixedly connected to the top surface of the frame 11, and the slider of the symmetrical linear guide rail 22 is connected to a cross bar, and the cross bar is connected to a feeding cylinder 23, and the telescopic end of the feeding cylinder 23 is fixed with a feeding rack, and a suction cup 24 is fixed on the feeding rack. A feeding platform 21 is provided below the suction cup 24, and the feeding platform 21 is a lifting platform. One side of a linear guide rail 22 is fixedly connected to a motor 25 that drives its slider to move. A conveying chain 13 is provided in the loading platform 12. After the loading mechanism 2 places the workpiece on the loading platform 12, it is pushed toward the shearing mechanism 3 by the conveying chain 13.

[0041] like Figure 1 and Figure 3 As shown, when the strips are cut into can body sheets, the strip stack is first placed on the feeding platform 21, and then the feeding platform 21 is controlled to rise, and then the telescopic section of the material-taking cylinder 23 is controlled to extend, and the suction cup 24 sucks the strips on the strip stack, and then the slider of the linear guide rail 22 is controlled to move toward the direction of the shearing mechanism 3, and the suction cup 24 releases the strip, thereby realizing the loading of the strip.

[0042] Among them, the shearing mechanism 3 also includes a symmetrical driving bracket 31, the disc shearing roller 32 is rotatably installed between the two driving brackets 31, the driving shaft of the nylon chain plate 41 is rotatably installed between the two driving brackets 31, and a driving mechanism is provided in the driving bracket 31 to make the disc shearing roller 32 and the driving shaft of the nylon chain plate 41 rotate synchronously.

[0043] By making the disc shear roller 32 rotate synchronously with the nylon chain plate 41, the feed speed can be ensured to be the same as the rotation speed of the disc shear roller 32 when the feed speed is lower than the shear speed, ensuring that the feed speed and the shear speed are synchronized, thereby avoiding the tearing and deformation at the shearing point caused by the different feeding speed and shear speed of the existing feeding structure, and at the same time avoiding the deviation or jamming of the plate.

[0044] Among them, a material receiving mechanism 5 is provided at the front end of the frame 11, and the material receiving mechanism 5 includes a material receiving platform 51 and a partition frame 52 slidably connected thereto. The material receiving platform 51 is a lifting platform, and the partition frame 52 is located below the auxiliary mechanism 4. After the partition frame 52 moves up, it is fixed and cannot slide.

[0045] After the nylon chain plate 41 moves with the sheared can body piece to the material receiving platform 51, it loses the attraction of the electromagnet 44 and is driven downward by the pressure rod 435, thereby falling into the partition frame 52, ensuring that the can body piece falls vertically into the partition frame 52, and preventing the can body piece from sliding after entering the partition frame 52 and scratching the sheared can body piece below.

[0046] A controller 6 is provided on one side of the shearing mechanism 3 , and the controller 6 is electrically connected to the electromagnet 44 and the trigger element 48 .

[0047] Working principle:

[0048] When the present invention is used to shear tin-plated steel sheets to produce can body sheets, the strips are first placed on the feeding platform 21, and then the linear guide 22 is started so that its slider drives the picking cylinder 23 and the suction cup 24 to move to the strip stack. Then the telescopic end of the picking cylinder 23 is extended so that the suction cup 24 sucks the strip at the top of the strip stack. Then the picking cylinder 23 is retracted and the slider of the linear guide 22 is returned, thereby transporting the strips to the loading platform 12. Thereafter, the strips are pushed toward the shearing mechanism 3 under the action of the conveyor chain 13.

[0049] As the strip reaches the bottom of the nylon chain plate 41, the magnet group inside the nylon chain plate 41 opens after triggering the trigger element 48 for opening, thereby adsorbing the strip to the bottom surface of the nylon chain plate 41. As the nylon chain plate 41 moves, the strip enters between the two disc shear rollers 32 and is sheared into multiple can slices.

[0050] As the shearing is completed, the tank body piece is still adsorbed on the bottom surface of the nylon chain plate 41. As the nylon chain plate 41 moves, the magnet group that adsorbs the tank body piece gradually approaches the trigger element 48 for triggering the closure. In the process of approaching the trigger element 48, the ferromagnetic block 47 is attracted by the magnet group and moves downward, thereby pulling the pressure rod 435 upward through the rope 46. During the upward movement, the pressure rod 435 rotates under the guidance of the second slide groove 4310, thereby rotating from a vertical state to a horizontal state during the rising process. At this time, the pressure rod 435 is located above the tank body piece.

[0051] When the magnet group triggers the trigger element 48 for closing, the magnet group is powered off and closed, and no longer attracts the can body piece. At this time, the pressure rod 435 slides down under its own weight, and under the limitation of the second slide groove 4310, the pressure rod 435 is in a horizontal state before sliding down, thereby pushing the can body piece downward, causing the can body piece to move downward vertically. After that, the pressure rod 435 will continue to fall and will be guided by the second slide groove 4310 to rotate back to the vertical state to complete the reset. The can body piece pushed downward by the pressure rod 435 falls back into the partition frame 52 on the material receiving platform 51 below. After the strip is sheared, the sheared can body piece can be taken out from the material receiving mechanism 5.

[0052] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A metal tinplate shearing device, comprising a transport mechanism (1), wherein the transport mechanism (1) comprises a frame (11) and a loading platform (12), a shearing mechanism (3) is provided at one end of the frame (11), and the shearing mechanism (3) comprises two disc shearing rollers (32) arranged one above the other, characterized in that: Also includes: The auxiliary mechanism (4) includes multiple groups of nylon chain plates (41), both sides of the nylon chain plates (41) are covered with side plates (42), the middle part of the side plates (42) is rotatably mounted on the disc shear roller (32), the inner side surface of the nylon plate of the nylon chain plate (41) is fixedly connected to an electromagnet (44), the inner side surface of the side plate (42) is fixedly connected to two trigger elements (48), the trigger element (48) controls the start and stop of the electromagnet (44), one end of the nylon chain plate (41) is located directly above the loading platform (12), and the The outer side surface of the side plate (42) is fixedly connected to a fixing frame (45) passing through it, and the fixing frame (45) is located on the bottom surface inside the nylon chain plate (41) and is provided with a ferromagnetic block (47). The bottom surface of the fixing frame (45) is fixedly connected to a vertical slide (43), and a pressure rod (435) is slidably connected inside the vertical slide (43). The electromagnet (44) is located below the ferromagnetic block (47) and attracts the ferromagnetic block (47) to drive the pressure rod (435) to slide upward. A pulling block (438) is rotatably installed on the rotating shaft of the pressure rod (435); The pressure rod (435) is in a vertical state when it is at the bottom, and rotates to a horizontal state when it approaches the end of the upward sliding stroke. The pressure rod (435) is in a horizontal state when it starts to slide downward, and rotates to a vertical state when it approaches the end of the downward sliding stroke.

2. The metal tin plate shearing device according to claim 1, characterized in that: The electromagnets (44) inside the nylon chain plate (41) are divided into a plurality of magnet groups. The nylon plates between two adjacent magnet groups are not fixedly connected to the electromagnets (44), and the electromagnets (44) in the magnet groups are started and stopped synchronously.

3. The metal tin plate shearing device according to claim 2, characterized in that: The two trigger elements (48) are respectively located on both sides of the disc shear roller (32), the one located above the loading platform (12) is an opening trigger, and the one close to the auxiliary mechanism (4) is a closing trigger. The magnet group switches to the corresponding start and stop state after activating the trigger element (48).

4. The metal tin plate shearing device according to claim 1, characterized in that: The vertical slide (43) includes a first vertical plate (431) and a second vertical plate (432). A vertical slide groove (433) is provided on the side of the second vertical plate (432). A first slide groove (439) and a second slide groove (4310) are provided on the inner side of the first vertical plate (431). A sliding shaft (434) is slidably connected in the vertical slide groove (433). A rotating disk (436) is fixedly sleeved on the sliding shaft (434). The pressure rod (435) is fixedly The fixed sleeve is connected to the sliding shaft (434), and the side of the rotating disk (436) is fixedly connected with a sliding column (437). The sliding shaft (434) is slidably connected in the first sliding groove (439), and the sliding column (437) is slidably connected in the second sliding groove (4310). The depth of the second sliding groove (4310) is greater than that of the first sliding groove (439). The pulling block (438) is slidably connected between the first vertical plate (431) and the second vertical plate (432).

5. The metal tin plate shearing device according to claim 1, characterized in that: The pulling block (438) and the ferromagnetic block (47) are connected via a rope (46), and the rope (46) passes through the fixing frame (45) and is guided by a guide roller in the fixing frame (45).

6. The metal tin plate shearing device according to claim 1, characterized in that: A loading mechanism (2) is provided at the rear end of the frame (11), and the loading mechanism (2) includes a symmetrical linear guide rail (22) fixedly connected to the top surface of the frame (11), a slider of the symmetrical linear guide rail (22) is connected to a cross bar, and a material-taking cylinder (23) is connected to the cross bar, and a material-taking frame is fixed to the telescopic end of the material-taking cylinder (23), and a suction cup (24) is fixed on the material-taking frame. A feeding platform (21) is provided below the suction cup (24), and the feeding platform (21) is a lifting platform.

7. The metal tin plate shearing device according to claim 6, characterized in that: A motor (25) for driving the slider to move is fixedly connected to one side of the linear guide rail (22), a conveying chain (13) is provided in the loading platform (12), and the loading mechanism (2) places the workpiece on the loading platform (12), and the workpiece is pushed by the conveying chain (13) to move toward the shearing mechanism (3).

8. The metal tin plate shearing device according to claim 1, characterized in that: The shearing mechanism (3) further comprises symmetrical drive brackets (31), the disc shearing roller (32) is rotatably mounted between the two drive brackets (31), the drive shaft of the nylon chain plate (41) is rotatably mounted between the two drive brackets (31), and a drive mechanism is provided in the drive bracket (31) to enable the disc shearing roller (32) and the drive shaft of the nylon chain plate (41) to rotate synchronously.

9. The metal tin plate shearing device according to claim 1, characterized in that: A material receiving mechanism (5) is provided at the front end of the frame (11), and the material receiving mechanism (5) comprises a material receiving platform (51) and a partition frame (52) slidably connected thereto. The material receiving platform (51) is a lifting platform, and the partition frame (52) is located below the auxiliary mechanism (4). After the partition frame (52) moves upward, it is fixed and cannot slide.

10. The metal tin plate shearing device according to claim 1, characterized in that: A controller (6) is provided on one side of the shearing mechanism (3), and the controller (6) is electrically connected to the electromagnet (44) and the trigger element (48).

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