Starting device and roll changing apparatus

Abstract

The application relates to a starting end processing device and a roll changing equipment. The starting end processing device is used for lifting a starting end of a standby material roll, and the starting end processing device comprises a lifting assembly, which comprises a clamping mechanism with a clamping space and a blowing mechanism which blows air towards the clamping mechanism and the standby material roll to blow the starting end of the standby material roll into the clamping space; wherein the clamping mechanism is configured to controllably clamp the starting end of the material roll entering the clamping space. The starting end processing device can automatically lift the starting end of the standby material roll, reduces labor cost, improves the automation degree of the roll changing equipment, and is beneficial to improving production efficiency and the stability of production quality.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing equipment technology, and in particular to a starting device and a reel changing device. Background Technology

[0002] In the battery manufacturing process, it is often necessary to continuously unwind and output the material strip on the roll downstream. For example, in the cell winding process, electrode sheets need to be continuously unwound and output to the winding device. When the working material strip on the working roll is unwound, it needs to be cut to remove the empty roll. Then, a spare roll is loaded, and the starting end of the spare material strip on the spare roll is attached to the cut end of the working material strip with adhesive tape, thus completing the roll change.

[0003] However, in the existing technology, the starting end of the spare material roll generally needs to be handled manually, such as lifting the starting end of the material roll or adjusting the angle of the starting end of the material roll, which increases labor costs, reduces the automation level of the roll changing equipment, and affects the stability of production efficiency and production quality. Summary of the Invention

[0004] Therefore, it is necessary to provide a starting processing device and rewinding equipment that improves upon the above-mentioned defects, addressing the problem that the starting end of the spare material roll generally requires manual processing in the existing technology, which increases labor costs, reduces the automation level of the rewinding equipment, and affects the stability of production efficiency and quality.

[0005] A starting processing device is used to lift the starting end of a spare material roll, the starting processing device including a lifting assembly, the lifting assembly comprising:

[0006] The clamping mechanism has a clamping space; and

[0007] The blowing mechanism blows air between the clamping mechanism and the spare roll to blow the starting end of the spare roll into the clamping space.

[0008] The clamping mechanism is configured to controllably clamp the starting end of the strip that enters the clamping space.

[0009] In one embodiment, the clamping mechanism includes a roller and a clamping block. The circumferential sidewall of the roller has a material-passing area, and the clamping block is movably connected inside the roller, forming the clamping space between the clamping block and the material-passing area.

[0010] The material feeding area has a feeding port for the starting end of the blown-up material strip to enter the clamping space. The clamping block can controllably cooperate with the material feeding area of ​​the roller to clamp or release the starting end of the material strip located in the clamping space.

[0011] In one embodiment, the lifting assembly further includes a movable seat on which both the roller and the blowing mechanism are mounted, and the movable seat is controllably movable along a first direction to a first position close to the spare roll and a second position away from the spare roll;

[0012] When the movable seat moves to the first position, the blowing mechanism blows air toward the spare roll to blow the starting end of the spare roll into the clamping space.

[0013] In one embodiment, the gripping mechanism further includes a rotary drive unit connected to the roller drive to drive the roller to rotate about its own axis.

[0014] In one embodiment, the starting processing device further includes a cutting component disposed between the first position and the second position;

[0015] When the movable seat moves from the first position to the second position, the cutting component cuts the material strip that is passing through.

[0016] In one embodiment, the clamping block includes a connecting end and a clamping end opposite to the connecting end, the connecting end being rotatably connected to the drum about a swing axis;

[0017] During the rotation of the connecting end around the swing axis, it can drive the clamping end to clamp or release the starting end of the material strip that enters the clamping space from the material inlet.

[0018] In one embodiment, the clamping mechanism further includes a clamping drive unit, which is driven to the clamping block to drive the clamping block to rotate about the swing axis.

[0019] In one embodiment, the clamping drive unit includes a drive base, a roller, and a reset elastic element;

[0020] The drive seat is movably connected inside the drum, the roller is mounted on the drive seat, and the clamping block has an inclined surface that rolls with the roller; the two ends of the reset elastic member are respectively connected to the drum and the clamping block to provide an elastic force that causes the clamping end to rotate in a direction away from the material-feeding area of ​​the drum;

[0021] As the drive seat drives the roller to roll along the inclined surface, the roller provides a clamping force that causes the clamping end to rotate toward the material-feeding area close to the roller.

[0022] In one embodiment, the clamping block has a protrusion, and the peripheral sidewall of the roller has a notch corresponding to the protrusion;

[0023] When the clamping end of the clamping block is in the position of clamping the starting end of the material strip, the protrusion on the clamping block protrudes through the notch onto the peripheral surface of the roller;

[0024] When the clamping end of the clamping block is in the position of releasing the starting end of the material belt, the protrusion on the clamping block retracts into the roller through the notch.

[0025] In one embodiment, the starting processing device further includes a waste collection assembly arranged corresponding to the second position. The waste collection assembly includes a fixed frame, a pushing drive and a pushing block. The pushing drive is disposed on the fixed frame and drivenly connected to the pushing block to drive the pushing block to move along the axial direction of the roller.

[0026] When the movable seat moves to the second position, the pusher block moves along the axial direction of the roller and pushes the waste material on the roller away from the roller.

[0027] In one embodiment, the blowing mechanism comprises two, which are respectively arranged on opposite sides of the axis of the roller.

[0028] In one embodiment, the blowing mechanism includes a moving drive and an air blowing component, the air blowing component being mounted on the driving end of the moving drive to be driven by the moving drive to approach or move away from the material feeding area of ​​the roller.

[0029] A roll changing device includes the starting treatment apparatus as described in any of the above embodiments.

[0030] When the starting end of the spare roll needs to be lifted, the blowing mechanism controls the blowing mechanism to blow air between the clamping mechanism and the spare roll, thereby blowing the starting end of the spare roll into the clamping space of the clamping mechanism so that the clamping mechanism can clamp the blown starting end of the roll, keeping the starting end of the roll vertical, so that the starting end of the roll can be further processed, such as applying tape or connecting it to the working roll.

[0031] Thus, the starting processing device of the present invention can automatically lift the starting end of the spare material strip, reducing labor costs, improving the automation level of the roll changing equipment, and helping to improve production efficiency and the stability of production quality. Attached Figure Description

[0032] Figure 1This is a schematic diagram of the structure of the head-starting processing device in one embodiment of the present invention;

[0033] Figure 2 for Figure 1 A top view of the head-starting processing device shown;

[0034] Figure 3 for Figure 1 A schematic diagram of the internal structure of the roller in the starting processing device shown (the roller is omitted);

[0035] Figure 4 for Figure 3 A top view of the internal structure of the drum shown;

[0036] Figure 5 for Figure 3 The side view of the internal structure of the drum shown;

[0037] Figure 6 for Figure 1 A schematic diagram of the installation structure of the rotating shaft of the starting processing device shown;

[0038] Figure 7 for Figure 1 A schematic diagram of the cutting and translation components and the cutting component of the starting processing device shown;

[0039] Figure 8 for Figure 7 The top view of the cut-off component shown. Detailed Implementation

[0040] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0041] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0046] Please see Figure 1 One embodiment of the present invention provides a starting processing device for lifting the starting end a of the spare material roll A to facilitate smooth connection with the working material roll, thereby realizing automatic roll changing.

[0047] The starting processing device includes a lifting assembly 20. The lifting assembly 20 includes a clamping mechanism 21 and a blowing mechanism 22. The clamping mechanism 21 has a clamping space. The blowing mechanism 22 blows air between the clamping mechanism 21 and the spare roll to blow the starting end a of the spare roll A into the clamping space. The clamping mechanism 21 is configured to controllably clamp the starting end a of the roll that has entered the clamping space.

[0048] When the starting end a of the spare material roll A needs to be lifted, the blowing mechanism 22 is controlled to blow air between the clamping mechanism 21 and the spare material roll A, thereby blowing the starting end a of the spare material roll A into the clamping space of the clamping mechanism 21 so that the clamping mechanism 21 can clamp the blown starting end a of the material roll, so that the starting end a of the material roll can be further processed, such as applying tape or connecting it to the working material roll.

[0049] Thus, the starting processing device of the present invention can automatically lift the starting end a of the spare material strip, reducing labor costs, improving the automation level of the roll changing equipment, and helping to improve production efficiency and the stability of production quality.

[0050] In an embodiment of the present invention, the clamping mechanism 21 includes a roller 211 and a clamping block 212. The circumferential sidewall of the roller 211 has a material-passing area b. The clamping block 212 is movably connected inside the roller 211, and the clamping block 212 and the material-passing area b form the aforementioned clamping space. The material-passing area b has a material-passing port for the starting end a of the blown material strip to enter the clamping space. The clamping block 212 can be controllably engaged with the material-passing area b of the roller 211 to clamp or release the starting end a of the material strip located in the clamping space.

[0051] Thus, when it is necessary to lift the starting end a of the spare material roll A, the blowing mechanism 22 is controlled to blow air between the roller 211 and the spare material roll A, thereby lifting the starting end a of the spare material roll A and allowing the starting end a of the material roll to enter the clamping space through the material inlet. Then, the clamping block 212 is controlled to cooperate with the material inlet b to clamp the starting end a of the material roll.

[0052] It should also be noted that, in order to ensure that the starting end a of the blown strip can accurately enter the clamping space inside the roller 211 through the material inlet, while the blowing mechanism 22 blows the starting end a of the strip, the rotation of the spare material roll A can be controlled, thereby driving the spare material roll A to rotate around its own axis by a certain angle, and thus driving the starting end a of the strip to be inserted into the clamping space inside the roller 211 through the material inlet.

[0053] In a specific embodiment, the lifting assembly 20 further includes a movable base 10, on which the roller 211 and the blowing mechanism 22 are mounted. The movable base 10 can be controllably moved along a first direction X to a first position close to the spare material roll A and a second position away from the spare material roll A. When the movable base 10 moves to the first position, the blowing mechanism 22 blows air toward the spare material roll A to lift the starting end a of the material roll A into the clamping space. Thus, when it is necessary to lift the starting end a of the material roll A, the blowing mechanism 22 is controlled to blow air between the roller 211 and the spare material roll A, thereby lifting the starting end a of the material roll A and allowing the starting end a of the material roll to enter the clamping space through the material inlet. Then, the clamping block 212 is controlled to cooperate with the material inlet b to clamp the starting end a of the material roll. Then, the control moving seat 10 moves along the first direction X to the second position, so that the starting end a of the material belt follows the roller 211 along the first direction X and pulls out a certain length of spare material belt.

[0054] In a specific embodiment, the starting processing device further includes a lifting drive assembly 50, which is drivenly connected to the movable seat 10 to drive the movable seat 10 to move along the first direction X. Optionally, the lifting drive assembly 50 can be a linear drive structure such as a motor screw module.

[0055] It should be noted that the starting processing device is not limited to using the moving seat 10 to move in a straight line to pull out a certain length of spare material strip. In other embodiments, the moving seat 10 can also use a swinging motion to pull out a certain length of spare material strip. Whether the moving seat 10 moves in a straight line along the first direction X or uses a swinging motion can be designed according to actual needs and is not limited here.

[0056] Please see Figure 2 and Figure 6 As shown, in a specific embodiment, the roller 211 is rotatably connected to the movable seat 10 about its own axis. The clamping mechanism 21 also includes a rotary drive unit 213 disposed on the movable seat 10. The rotary drive unit 213 is drivenly connected to the roller 211 to drive the roller 211 to rotate relative to the movable seat 10 about its own axis. Thus, when the clamping block 212 clamps the starting end a of the material strip, the rotary drive unit 213 drives the roller 211 to rotate about its own axis, so that the spare material strip is wound around the roller 211, thereby preventing the starting end a of the material strip from disengaging from the roller 211 when the movable seat 10 moves from the first direction X to the second position.

[0057] Optionally, the rotary drive unit 213 includes a rotary shaft 2135 and a rotary drive component 2131. The rotary shaft 2135 is rotatably connected to the movable base 10, and the roller 211 is coaxially connected to one end of the rotary shaft 2135. The rotary drive component 2131 is mounted on the movable base 10 and is drivenly connected to the other end of the rotary shaft 2135 to drive the rotary shaft 2135 to rotate, thereby driving the roller 211 to rotate around its own axis.

[0058] Optionally, a belt drive structure can be used to connect the rotary drive component 2131 and the rotary shaft 2135. That is, a drive wheel 2132 is mounted on the output shaft of the rotary drive component 2131, and a driven wheel 2133 is mounted on the rotary shaft 2135. A transmission belt 2134 is fitted between the drive wheel 2132 and the driven wheel 2133. In this way, the rotary drive component 2131 can drive the drive wheel 2132 to rotate, the drive wheel 2132 drives the driven wheel 2133 to rotate via the transmission belt 2134, and the driven wheel 2133 in turn drives the rotary shaft 2135 and the roller 211 to rotate. Furthermore, the rotary drive component 2131 can be an electric motor.

[0059] In a specific embodiment, the roller 211 has an identification part (not shown). The clamping mechanism 21 also includes a detector 214 mounted on the movable seat 10. The detector 214 is used to detect the identification part passing through its identification area. When the detector 214 detects that the identification part has rotated with the roller 211 to the identification area of ​​the detector 214, the feed port of the roller 211 faces the spare roll A (i.e., in...). Figure 1 In the illustrated embodiment, the feed port of the roller 211 faces downwards, so that the starting end a of the spare roll A, which is blown up when the moving seat 10 moves to the first position, can accurately enter the clamping space inside the roller 211 through the feed port and be clamped by the clamping block 212. Optionally, the detector 214 can be a photoelectric sensor, and the identification part can be a notch formed on the roller 211.

[0060] Please see Figures 3 to 5 As shown, in some embodiments, the clamping block 212 includes a connecting end 2122 and a clamping end 2123 opposite to the connecting end 2122. The connecting end 2122 is rotatably connected to the drum 211 about a swing axis, for example, the connecting end 2122 is mounted in the drum 211 via a swing shaft 2124. A clamping space is formed between the clamping end 2123 and the material feeding area b of the drum 211, so that the starting end a of the spare material roll A can enter the clamping space in the drum 211 through the material feeding port of the material feeding area b, so that the clamped end 2123 can clamp it on the inner wall of the material feeding area b of the drum 211. That is, during the rotation of the connecting end 2122 about the swing axis, the clamping end 2123 can clamp or release the starting end a of the material feeding roll that enters the clamping space from the material feeding port.

[0061] Thus, during actual operation, the starting end a of the spare material roll A is blown up by the airflow from the blowing mechanism 22, causing the starting end a of the material roll to enter the clamping space inside the roller 211 through the material inlet. Then, the clamping block 212 is controlled to rotate around the swing axis, so that the clamping end 2123 gradually approaches the inner wall of the material inlet of the roller 211, until the starting end a of the material roll is clamped on the inner wall of the material inlet area b of the roller 211.

[0062] In a specific embodiment, the clamping mechanism 21 further includes a clamping drive unit (not shown in the figure), which is driven to connect with the clamping block 212 to drive the clamping block 212 to rotate around the swing axis, thereby causing the clamping end 2123 to clamp or release the starting end a of the material strip that has entered the clamping space.

[0063] Optionally, the clamping drive unit includes a drive base 215, a roller 2153, and a reset elastic element 216. The drive base 215 is movably connected inside the roller 211. The roller 2153 is mounted on the drive base 215, thereby moving relative to the roller 211 along with the drive base 215. The clamping block 212 has an inclined surface 2125 that rolls with the roller 2153.

[0064] The two ends of the reset elastic element 216 are connected to the roller 211 and the clamping block 212, respectively, to provide a spring force that causes the clamping end 2123 to rotate in the direction of releasing the starting end a of the material strip (i.e., away from the material-passing area b of the roller 211). As the drive seat 215 drives the roller 2153 to roll along the inclined surface 2125, the roller 2153 provides a clamping force that causes the clamping end 2123 to rotate in the direction of clamping the starting end a of the material strip (i.e., closer to the material-passing area b of the roller 211).

[0065] Thus, when it is necessary to clamp the starting end a of the strip entering the clamping space from the feed port, the drive seat 215 is moved relative to the roller 211, thereby driving the roller 2153 to move along the inclined surface 2125 on the clamping block 212, thereby providing a clamping force to the clamping block 212. Driven by this clamping force, the clamping block 212 rotates around the swing axis until the clamping end 2123 of the clamping block 212 and the inner wall of the feed area b of the roller 211 jointly clamp the starting end a of the strip (during this process, the clamping block 212 needs to overcome the elastic force provided by the reset elastic element 216 to rotate). When it is necessary to release the starting end a of the strip, the drive seat 215 is moved in the opposite direction relative to the roller 211, so that the clamping force applied by the roller 2153 to the clamping block 212 disappears, thereby causing the clamping block 212 to move in the direction away from the feed area b of the roller 211 under the action of the elastic force provided by the reset elastic element 216, so as to release the starting end a of the strip. Optionally, the reset elastic element 216 can be a tension spring.

[0066] Optionally, the swing axis is perpendicular to the axial direction of the roller 211, and the direction of movement of the drive seat 215 relative to the roller 211 is parallel to the axial direction of the roller 211. The inclined surface 2125 is inclined relative to the axial direction of the roller 211. Specifically... Figure 1 In the embodiment shown, the swing axis is parallel to the left-right direction, and the axial direction of the roller 211 is parallel to the direction perpendicular to the paper surface.

[0067] Furthermore, the clamping drive unit also includes a clamping drive element 2181 (see...) Figure 6 ) and push block 2182 (see Figure 6 The clamping drive 2181 is mounted on the rotating shaft 2135, and the pushing block 2182 is mounted on the driving end of the clamping drive 2181 and is arranged opposite to the drive seat 215. The clamping drive 2181 is used to drive the pushing block 2182 to move relative to the roller 211, and to push the drive seat 215 to move relative to the roller 211. Optionally, the clamping drive 2181 can be a cylinder.

[0068] Of course, in another embodiment, the push block 2182 and the drive seat 215 can also be directly connected, so that the push block 2182 can drive the drive seat 215 to move along the axial direction of the roller 211.

[0069] Furthermore, the inner wall of the roller 211 is provided with a slide rail 2151, and the drive seat 215 is provided with a slider 2152, which slides in cooperation with the slide rail 2151. In this way, the movement of the slider 2152 on the slide rail 2151 guides the movement of the drive seat 215 relative to the roller 211.

[0070] Please see Figure 7 and Figure 8As shown, in some embodiments, the starting processing device further includes a cutting assembly 40. This cutting assembly 40 is positioned between the first and second positions. When the moving seat 10 moves to the second position away from the spare roll A, the cutting assembly 40 cuts the spare roll in the path. Thus, when it is necessary to lift the starting end a of the spare roll A, the moving seat 10 moves to the first position, and the blowing mechanism 22 is controlled to blow air between the roller 211 and the spare roll A, thereby lifting the starting end a of the spare roll A. At this time, the spare roll A is controlled to rotate, thereby driving the lifted starting end a of the roll to be inserted from the threading port into the clamping space within the roller 211. Then, the clamping block 212 is controlled to rotate about the swing axis, so that the clamping end 2123 of the clamping block 212 engages with the inner wall of the threading area of ​​the roller 211 to clamp the starting end a of the roll. Then, the moving seat 10 moves from the first position to the second position, so that the starting end a of the roll follows the roller 211 and moves along the first direction X. At this point, the starting end a of the material strip passes over the cutting assembly 40, so that the transfer device for transferring the spare material roll A can be used to adsorb and fix the spare material strip passing between the cutting assembly 40 and the spare material roll A, so that the spare material strip remains in a state of extending along the first direction X. Then, the cutting assembly 40 cuts the spare material strip that has passed through, and the end of the spare material strip adsorbed and fixed on the transfer device becomes the new starting end a of the material strip (the part left on the clamping mechanism 21 becomes the material strip waste), thus completing the lifting process of the starting end a of the spare material roll A.

[0071] It should be noted that cutting the spare material strip using the cutting component 40 serves two purposes: firstly, when the subsequent transfer device transfers the spare material strip to the receiving station and connects it with the working material strip, the starting end a of the spare material roll A is aligned with the cut end of the working material strip, thus facilitating connection; secondly, it cuts off the waste section of the spare material strip, thereby ensuring the quality of the spare material strip.

[0072] Specifically, in this embodiment, the starting processing device further includes a cutting and translational assembly 30, which is drivenly connected to the cutting assembly 40 to drive the cutting assembly 40 into or out of the first position and the second position. When the cutting and translational assembly 30 drives the cutting assembly 40 into the first position and the second position, the spare material strip enters the cutting assembly 40, enabling the cutting assembly 40 to cut the spare material strip. When the cutting and translational assembly 30 drives the cutting assembly 40 out of the first position and the second position, the moving seat 10 can drive the lifting assembly 20 to move smoothly between the first position and the second position without interference from the cutting assembly 40. Optionally, the cutting and translational assembly 30 drives the cutting assembly 40 into or out of the first position and the second position along a second direction Y perpendicular to the first direction X. Figure 1 In the embodiment shown, the first direction X is the up-down direction, and the second direction Y is the direction perpendicular to the paper.

[0073] Specifically, in this embodiment, the cutting and translational assembly 30 includes a mounting bracket 31, a translational slide 32, and a cutting and translational drive 33. The translational slide 32 is movably connected to the mounting bracket 31 along the second direction Y (i.e., along the axial direction of the roller 211). The cutting assembly 40 is mounted on the translational slide 32 to move along the second direction Y with the translational slide 32, thereby entering or exiting between the first position and the second position. The cutting and translational drive 33 is mounted on the mounting bracket 31 and slidably connected to the translational slide 32 to drive the translational slide 32 to move along the second direction Y. Optionally, the cutting and translational drive 33 can be a cylinder. The translational slide 32 can be connected to the mounting bracket 31 via a slide rail slider, thereby guiding the movement of the translational slide 32.

[0074] In a specific embodiment, the cutting assembly 40 includes a mounting base 41, a first shearing blade 42, a second shearing blade 43, and a cutting drive 44. The first shearing blade 42 includes a first pivot portion 421 and a first cutting edge 422 and a first drive portion 423 connected to opposite ends of the first pivot portion 421. The second shearing blade 43 includes a second pivot portion 431 and a second cutting edge 432 and a second drive portion 433 connected to opposite ends of the second pivot portion 431. The first pivot portion 421 and the second pivot portion 431 are rotatably connected to the mounting base 41 about the same axis, and a cutting channel is formed between the first cutting edge 422 and the second cutting edge 432 through which the feed belt passes. The cutting drive 44 is drively connected to the first drive portion 423 and the second drive portion 433 to drive the first drive portion 423 and the second drive portion 433 to separate or move closer together, thereby causing the first cutting edge 422 and the second cutting edge 432 to separate or move closer together.

[0075] Thus, the first shearing blade 42 and the second shearing blade 43 form a scissor structure. The cutting drive 44 drives the first driving part 423 and the second driving part 433 to move closer together, thereby causing the first blade 422 and the second blade 432 to move closer together, allowing the first blade 422 and the second blade 432 to shear the spare material strip until it is cut. After the spare material strip is cut, the cutting drive 44 drives the first driving part 423 and the second driving part 433 to separate, thereby causing the first blade 422 and the second blade 432 to open apart, thus separating the first blade 422 and the second blade 432.

[0076] Furthermore, the cutting assembly 40 also includes a moving block 45, a first cam 46, and a second cam 47. The moving block 45 is connected to the driving end of the cutting drive member 44 and has a first cam groove 451 and a second cam groove 452. The first cam 46 is mounted on the first drive part 423 and slides in engagement with the first cam groove 451. The second cam 47 is mounted on the second drive part 433 and slides in engagement with the second cam groove 452. During the process of the cutting drive member 44 driving the moving block 45 to move, the first cam 46 and the second cam 47 move relative to the moving block 45 along the first cam groove 451 and the second cam groove 452, respectively, thereby causing the first drive part 423 and the second drive part 433 to separate or move closer to each other. In this way, through the cam structure, the linear motion of the moving block 45 is converted into the rotational separation or moving closer motion of the first drive part 423 and the second drive part 433, thereby causing the first blade 422 and the second blade 432 to cut the spare material strip. Optionally, the cutting drive member 44 can be a cylinder.

[0077] Furthermore, the cutting assembly 40 also includes a rotating shaft 48 and an elastic element 49. The rotating shaft 48 passes through rotating shaft holes opened in the mounting base 41, the first pivot portion 421, and the second pivot portion 431. Both ends of the rotating shaft 48 have limiting portions 481 to limit the mounting base 41, the first pivot portion 421, and the second pivot portion 431 between the two limiting portions 481. The elastic element 49 abuts against the mounting base 41 and an adjacent limiting portion 481, thereby pressing the first shearing blade 42 and the second shearing blade 43 together, ensuring better engagement between the first blade 422 and the second blade 432, which is beneficial for improving the cutting quality of the spare material strip. Optionally, the elastic element can be a spring, which is sleeved on the rotating shaft 48.

[0078] Please see Figure 1 and Figure 2 As shown, in some embodiments, the starting processing device further includes a waste collection assembly 60 corresponding to the second position. The waste collection assembly 60 includes a fixed frame 61, a pushing drive 62, and a pushing block 63. The pushing drive 62 is mounted on the fixed frame 61 and is drivenly connected to the pushing block 63 to drive the pushing block 63 to move axially along the roller 211. When the moving seat 10 moves to the second position, the pushing block 63 moves axially along the roller 211, pushing the waste material strip on the roller 211 away from the roller 211. Optionally, the pushing drive 62 can be a cylinder.

[0079] Thus, after the cutting assembly 40 cuts the spare strip, the spare strip wound on the roller 211 becomes waste strip. At this time, the pushing drive 62 drives the pushing block 63 to move along the axial direction of the roller 211 to push the waste strip off the roller 211. Then, the pushing drive 62 drives the pushing block 63 back. Optionally, the pushing drive 62 can be a cylinder. The pushing block 63 has a mating surface that matches the outer peripheral surface of the roller 211. This mating surface is in direct contact with the outer peripheral surface of the roller 211, or it can be separated from the outer peripheral surface of the roller 211 by a small gap, as long as it can push the waste strip on the roller 211. For example, if the outer peripheral surface of the roller 211 is an arc surface, then the mating surface is also an arc surface.

[0080] It should be noted that in order to ensure that the waste material of the conveyor belt can be completely pushed away from the roller 211, the material inlet on the roller 211 is connected to one end of the roller 211, so that the waste material of the conveyor belt that enters the roller 211 through the material inlet can also be pushed away from the roller 211 by the pusher block 63 from the end connected by the material inlet.

[0081] Please see Figure 3 As shown, in a specific embodiment, the clamping block 212 has a protrusion 2121, and a notch corresponding to the protrusion 2121 is formed on the peripheral surface of the roller 211. When the clamping end 2123 of the clamping block 212 is in the position of clamping the starting end a of the material strip, the protrusion 2121 on the clamping block 212 passes through the corresponding notch to the peripheral surface of the roller 211, thereby increasing the circumference of the inner circle of the spare material strip (i.e., the cut material strip waste) wound on the roller 211 (i.e., the protrusion 2121 passing through the notch plays the role of spreading the material strip waste wound on the roller 211). When the clamping end 2123 of the clamping block 212 is in the position of releasing the starting end a of the strip, the protrusion 2121 on the clamping block 212 retracts into the roller 211 through the corresponding notch, thereby releasing the stretching of the strip waste wrapped on the roller 211, so that the inner circumference of the strip waste is greater than the outer circumference of the roller 211 (i.e. the strip waste will not be tightly clamped on the roller 211), so that the pusher block 63 can push the strip waste away from the roller 211 more easily.

[0082] Optionally, the clamping block 212 has two protrusions 2121, which are located on opposite sides of the clamping block 212 in a direction parallel to the aforementioned swing axis. The roller 211 has notches corresponding to the two protrusions 2121. During the rotation of the clamping block 212 around the swing axis, the two protrusions 2121 simultaneously extend or retract through the two notches. Thus, when the roller 211 rotates, the two protrusions 2121 simultaneously expand the spare material strip, and before pushing away the waste material strip, the two protrusions 2121 simultaneously retract through the corresponding notches, thereby releasing the expansion of the waste material strip, making the inner circumference of the waste material strip greater than the outer circumference of the roller 211, thereby making it easier to push the waste material strip off the roller 211.

[0083] Please see Figure 1 As shown, in some embodiments, the blowing mechanism 22 includes a moving drive 221 and an air blowing component 223, the moving drive 221 being mounted on the moving base 10. The air blowing component 223 is mounted on the driving end of the moving drive 221, so that it is driven by the moving drive 221 to approach or move away from the material inlet of the roller 211. Thus, when it is necessary to lift the starting end a of the strip, firstly, the moving drive 221 drives the air blowing component 223 toward the material inlet of the roller 211 until it is close to the material inlet. Then, the air blowing component 223 blows air between the roller 211 and the spare material roll A, thereby lifting the starting end a of the strip on the spare material roll A. At the same time, the spare material roll A is controlled to rotate at a certain angle until the lifted starting end a of the strip is inserted from the material inlet into the clamping space inside the roller 211. Then, the starting end a of the strip in the clamping space is clamped by the clamping block 212. The moving drive unit 221 drives the air blowing unit 223 away from the material inlet of the roller 211 until it returns to its initial position, so as to avoid the air blowing unit 223 interfering with the rotation of the roller 211. Optionally, the moving drive unit 221 can be a cylinder.

[0084] In some embodiments, the blowing mechanism 22 includes two mechanisms, which are respectively arranged on opposite sides of the axis of the roller 211. Thus, depending on the winding direction of the spare material strip on the spare material roll A, the blowing mechanism 22 on the right side of the roller 211 may need to blow air to the left to blow up the starting end a of the strip, so that when the spare material roll A rotates clockwise, the starting end a of the strip can be inserted into the material inlet; or the blowing mechanism 22 on the left side of the roller 211 may need to blow air to the right to blow up the starting end a of the strip, so that when the spare material roll A rotates counterclockwise, the starting end a of the strip can be inserted into the material inlet. Therefore, blowing mechanisms 22 are provided on opposite sides of the axis of the roller 211 (i.e., the left and right sides of the roller 211) to ensure that the starting ends a of the strip of the clockwise wound spare material roll A and the counterclockwise wound spare material roll A can be blown up and clamped smoothly.

[0085] It should be noted that, specifically... Figure 1 In the illustrated embodiment, if the starting end of the spare material roll A is wound counterclockwise, the blowing mechanism 22 on the left side needs to blow air to the right to lift the starting end a of the material roll. At the same time, the spare material roll A is controlled to rotate counterclockwise, thereby moving the starting end a of the material roll to the upper left until the starting end a of the material roll is inserted into the clamping space inside the roller 211 through the material inlet.

[0086] In other embodiments, if the starting end of the spare material roll A is wound clockwise, the blowing mechanism 22 on the right side needs to blow air to the left to lift the starting end a of the material roll. At the same time, the spare material roll A is controlled to rotate clockwise, thereby driving the starting end a of the material roll to move to the upper right until the starting end a of the material roll is inserted into the clamping space inside the roller 211 through the material inlet.

[0087] The following is in conjunction with the appendix Figure 1 The operation process of the head-starting processing device 30 is described below:

[0088] When it is necessary to lift the starting end a of the spare material roll A, firstly, the moving seat 10 moves downward to the first position close to the spare material roll A.

[0089] Then, the blowing mechanism 22 blows up the starting end a of the spare material roll A and controls the spare material roll A to rotate, thereby driving the starting end a of the blown material roll to gradually approach the material inlet of the roller 211 until it enters the clamping space inside the roller 211 from the material inlet.

[0090] Then, the drive seat 215 drives the clamping block 212 to rotate around the swing axis until the clamping end 2123 of the clamping block 212 clamps the starting end a of the material strip onto the inner wall of the material passage area b of the roller 211.

[0091] Then, drive roller 211 to rotate around its own axis, so that the spare material strip is wound around roller 211 (generally two to three turns, but not limited here).

[0092] Then, the moving seat 10 moves upward to a second position away from the spare material roll A, and the transfer device adsorbs and fixes the spare material roll at the position between the cutting component 40 and the spare material roll A. The spare material roll is cut by the cutting component 40, and at this time, the starting end a of the spare material roll is adsorbed and fixed by the transfer device. The part remaining on the roller 211 is the material waste.

[0093] Finally, the transfer device moves the spare material roll A and the starting end a of the spare material roll A away from the starting processing device. Furthermore, the pusher block 63 moves axially along the roller 211 to push the waste material away from the roller 211.

[0094] Based on the above-described starting processing device, the present invention also provides a roll changing device, which includes the starting processing device as described in any of the above embodiments.

[0095] Specifically, the roll changing equipment also includes a transfer device, a tape receiving device located at the tape receiving station, and a feeding device located at the starting processing station. The starting processing device is arranged corresponding to the starting processing station.

[0096] The transfer device can move to the starting processing station and the tape receiving station. When the transfer device moves to the starting processing station, the feeding device is used to convey the spare material roll A to the transfer device, and the starting processing device is used to lift the starting end of the spare material tape, so that the starting end a of the material tape is fixed by the transfer device to keep it in a vertical state.

[0097] When the working material roll on the splicing device is unwound, the splicing device cuts the working material strip. The transfer device moves to the splicing position and transfers the spare material roll A to the splicing device, aligning the starting end a of the spare material roll A with the cut end of the working material strip. Then, the transfer device connects (e.g., adhesively) the cut end of the working material strip with the starting end a of the spare material strip, thus completing the splicing. After splicing is completed, the transfer device leaves the splicing station, and the splicing device continues to output material strip downstream.

[0098] It should be noted that the transfer device, tape receiving device, and feeding device can adopt relatively mature existing technologies, as long as they can cooperate to complete automatic roll changing (that is, replacing the spare material roll A with the working material roll), and there are no restrictions here.

[0099] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0100] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A leader handling device for lifting a leader end of a web of a reserve roll, characterized by The starting treatment device comprises a lifting assembly, which comprises: a clamping mechanism having a clamping space; and a blowing mechanism blowing air between the clamping mechanism and the standby roll to blow the starting end of the standby tape into the clamping space; wherein the clamping mechanism is configured to controllably clamp the starting end of the tape entering the clamping space; the clamping mechanism comprises a roller and a clamping block, the circumferential sidewall of the roller has a tape passing area, the clamping block is movably connected in the roller, and the clamping block and the tape passing area form the clamping space; the clamping mechanism further comprises a rotary driving unit, which is drivingly connected with the roller to drive the roller to rotate about its axis, so that the standby tape is wound on the roller; the blowing mechanism comprises two, and the two blowing mechanisms are respectively arranged on the opposite sides of the axis of the roller.

2. The starting treatment apparatus according to claim 1, characterized by The tape passing area has a tape passing port for the blown starting end of the tape to enter the clamping space, and the clamping block can controllably clamp or release the starting end of the tape in the clamping space in cooperation with the tape passing area of the roller.

3. The starting treatment apparatus according to claim 2, characterized by The clamping block comprises a connecting end and a clamping end opposite to the connecting end, and the connecting end is controllably rotatably connected in the roller about a swing axis; During the rotation of the connecting end about the swing axis, the clamping end can clamp or release the starting end of the tape entering the clamping space from the tape passing port.

4. The starting treatment apparatus according to claim 3, characterized by The clamping mechanism further comprises a clamping driving unit, which is drivingly connected with the clamping block to drive the clamping block to rotate about the swing axis.

5. A starter treatment device according to claim 4, characterized in that The clamping driving unit comprises a driving seat, a roller and a reset elastic member; The driving seat is movably connected in the roller, the roller is installed on the driving seat, the clamping block has an inclined surface rollingly cooperating with the roller, and the two ends of the reset elastic member are connected with the roller and the clamping block respectively to provide a spring force for rotating the clamping end towards the tape passing area of the roller; During the rolling of the roller along the inclined surface driven by the driving seat, the roller provides a clamping force for rotating the clamping end towards the tape passing area of the roller.

6. A starter treatment device according to any one of claims 2 to 5, characterised in that The blowing mechanism comprises a moving driving member and a blowing member, the blowing member is installed on the driving end of the moving driving member to be driven by the moving driving member to approach or move away from the tape passing area of the roller.

7. A starter treatment device according to any one of claims 2 to 5, characterised in that The lifting assembly further comprises a moving seat and a cutting assembly, the roller and the blowing mechanism are both installed on the moving seat, the moving seat is controllably movable along a first direction to a first position close to the standby roll and a second position away from the standby roll, and the cutting assembly is arranged between the first position and the second position; When the moving seat moves to the first position, the blowing mechanism blows air towards the standby roll to blow the starting end of the standby roll into the clamping space, and when the moving seat moves to the second position, the cutting assembly cuts the tape passing through.

8. The starting treatment apparatus according to claim 3, characterized by The clamping block has a protrusion, and a notch corresponding to the protrusion is formed on the circumferential wall of the roller; When the clamping end of the clamping block is in the position of clamping the leading end of the material belt, the protrusion on the clamping block passes through the notch and protrudes out of the circumferential surface of the roller; When the clamping end of the clamping block is in the position of releasing the leading end of the material belt, the protrusion on the clamping block is retracted into the roller through the notch.

9. The starting treatment apparatus according to claim 7, characterized by The leading end processing device further comprises a waste collecting assembly arranged corresponding to the second position, the waste collecting assembly comprising a fixing frame, a pushing driving member and a pushing block, the pushing driving member being arranged on the fixing frame and being drivingly connected with the pushing block to drive the pushing block to move along the axial direction of the roller; When the moving seat moves to the second position, the pushing block moves along the axial direction of the roller and pushes the waste of the material belt on the roller away from the roller.

10. A roll changing apparatus characterized by comprising: A leading end processing device comprising any one of claims 1 to 9.

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