A long-stroke taping device

Abstract

The application relates to a long-stroke tape sticking device. The long-stroke tape sticking device comprises a rack, a fixed plate, a tape unwinding assembly and a first suction disc, the rack is provided with a first guide rail and a first driving unit in the horizontal direction, the fixed plate is slidingly arranged on the first guide rail, the tape unwinding assembly is arranged on the fixed plate, the first suction disc is arranged at the rear end of the first guide rail, and the air suction hole of the first suction disc faces upwards, a cutter and a second suction disc are further arranged on the fixed plate, the cutter and the second suction disc are sequentially arranged in the glue outlet direction of the unwinding end of the tape unwinding assembly, the first driving unit is used for driving the unwinding end of the tape unwinding assembly to move from the front end of the first guide rail to above the first suction disc through the fixed plate, and driving the unwinding end of the tape unwinding assembly to move from above the first suction disc to the front end of the first guide rail. The long-stroke tape sticking device has the advantages of high automation degree, convenient operation and reduced production cost.

Description

TECHNICAL FIELD

[0001] The present application relates to a battery cell taping device, in particular to a long-stroke taping device. BACKGROUND

[0002] In the processing technology of battery cells, the taping of the processed bare battery cells is required. In the existing taping device, the taping is performed after the tape is pulled out from the taping mechanism, and the tape is cut off after the taping mechanism completes the taping. After the taping of the previous time is completed and the tape is cut off, the tape needs to be manually pulled out from the taping mechanism and fixed, and then the next taping is performed. This processing method of manually pulling out the tape from the taping mechanism has the defects of inconvenient operation, low automation degree, and high production cost. SUMMARY

[0003] Therefore, the purpose of the present application is to provide a long-stroke taping device, which moves the tape above the suction cup and then automatically pulls it off for taping by setting the suction cup and guide rail, and has the advantages of high automation degree, convenient operation, and reduced production cost.

[0004] The present application is realized by the following scheme:

[0005] A long-stroke taping device comprises a rack, a fixed plate, a tape unwinding assembly, and a first suction cup. The rack is provided with a first guide rail and a first driving unit in the horizontal direction. The fixed plate is slidingly arranged on the first guide rail. The tape unwinding assembly is arranged on the fixed plate. The first suction cup is arranged on the rack and located at the rear end of the first guide rail. The suction hole of the first suction cup faces upward.

[0006] The fixed plate is further provided with a cutter and a second suction cup. The cutter and the second suction cup are arranged in the tape discharge direction of the unwinding end of the tape unwinding assembly.

[0007] The first driving unit is used to drive the unwinding end of the tape unwinding assembly through the fixed plate, move from the front end of the first guide rail to the upper side of the first suction cup, and drive the unwinding end of the tape unwinding assembly to move from the upper side of the first suction cup to the front end of the first guide rail.

[0008] The long-stroke taping device has the advantages of high automation degree and convenient operation.

[0009] Further, the fixing plate is further provided with a second driving unit and a connecting plate, the connecting plate is provided with a first mounting plate and a second mounting plate, the adhesive tape unwinding assembly is arranged on the first mounting plate, the cutter and the second suction cup are arranged on the second mounting plate, and the second driving unit is used to drive the connecting plate to move downward to perform the adhesive tape pasting operation.

[0010] Further, the second driving unit comprises a first air cylinder, the fixing plate is provided with a second guide rail in the vertical direction, the connecting plate is slidingly arranged on the second guide rail, and the push rod end of the first air cylinder is fixedly connected with the connecting plate.

[0011] Further, the unwinding end of the adhesive tape unwinding assembly comprises a roller mounting plate arranged on the first mounting plate, a flexible roller, a second air cylinder and a guide block, the roller mounting plate is connected with the second air cylinder arranged on the first mounting plate, and the flexible roller is arranged on the roller mounting plate.

[0012] The guide block is arranged on one side of the adhesive tape introduction end of the flexible roller, and the guide block is provided with an inner recess at the adhesive tape introduction end of the flexible roller.

[0013] Further, the guide block is further provided with a blowing hole, the blowing direction of the blowing hole is towards the adhesive tape leading-out end of the flexible roller, and the blowing hole is connected with an air inlet pipeline.

[0014] Further, an elastic member is arranged between the roller mounting plate and the push rod of the second air cylinder.

[0015] Further, the connecting plate is provided with a first connecting portion, the first mounting plate is provided with a second connecting portion, and the first connecting portion and the second connecting portion are rotationally connected through a vertical rotating shaft.

[0016] The first connecting portion is provided with a first connecting hole and a second connecting hole, the second connecting portion is provided with a third connecting hole, or the first connecting portion is provided with a third connecting hole, and the second connecting portion is provided with a first connecting hole and a second connecting hole.

[0017] The first mounting plate can be rotated to a first position or a second position with the rotating shaft as the axis, when the first mounting plate is located at the first position, the first connecting hole coincides with the third connecting hole, and when the first mounting plate is located at the second position, the second connecting hole coincides with the third connecting hole.

[0018] Further, the connecting line between the center of the first connecting hole and the axis of the rotating shaft is perpendicular to the connecting line between the center of the second connecting hole and the axis of the rotating shaft.

[0019] Further, the adhesive tape unwinding assembly comprises a loading adhesive disc and an adhesive disc mounting shaft fixed on the first mounting plate, and the loading adhesive disc is sleeved on the adhesive disc mounting shaft;

[0020] The first transition roller and the second transition roller are sequentially arranged on the first mounting plate from the adhesive tape leading-out end of the loading adhesive disc to the adhesive tape leading-in end of the flexible roller, and the second transition roller is further connected with a third cylinder arranged on the first mounting plate.

[0021] Further, the second mounting plate is further provided with a fourth cylinder connected with the cutter, and the fourth cylinder is used for controlling the movement of the cutter, and the tail end of the cutter is obliquely arranged at the adhesive tape leading-out end of the flexible roller.

[0022] The second mounting plate is further provided with a fifth cylinder connected with the second suction disc, and the second suction disc is arranged on the side of the cutter opposite to the flexible roller, and the air suction hole of the second suction disc faces downward.

[0023] The long-stroke adhesive tape device comprises a first suction disc arranged at the rear end of the rack, a fixed plate arranged on the first guide rail for driving the adhesive tape unwinding assembly, the cutter and the second suction disc to move horizontally, the adhesive tape unwinding assembly extends the adhesive tape to be attached to the battery cell, then the cutter cuts the adhesive tape, and the second suction disc moves the adhesive tape to be adsorbed above the first suction disc, so that the first suction disc adsorbs and fixes the adhesive tape, at this time, the adhesive tape is automatically pulled out without manual operation, and the degree of automation is high and the operation is convenient; the second driving unit is arranged on the fixed plate to drive the first mounting plate and the second mounting plate connected to the connecting plate to move, specifically, the first cylinder and the second guide rail are arranged to drive the movement, and the up-down movement is matched with the adhesive application operation; the flexible roller is arranged at the unwinding end and is driven to move by the second cylinder, when the adhesive tape is applied to the battery cell, the flexible roller is rolled down to the adhesive tape, so that the adhesive tape is better attached to the surface of the battery cell, the flexible roller is further connected with the elastic member, so that the contact between the flexible roller and the battery cell is more flexible, and the battery cell is prevented from being damaged; the guide block is arranged on one side of the adhesive tape leading-in end of the flexible roller, the inner recess of the guide block guides the adhesive tape, and the guide block is provided with the air blowing hole, the adhesive tape is blown after being cut by the cutter, and the second suction disc is adsorbed; the first connecting part and the second connecting part are respectively arranged on the connecting plate and the first mounting plate, the first mounting plate is rotatably connected through the rotating shaft, the loading adhesive disc is replaced, specifically, the first connecting hole, the second connecting hole and the third connecting hole are arranged to coincide with the limiting position; the first transition roller and the second transition roller are further arranged to guide the transmission of the adhesive tape, and the third cylinder is arranged to control the movement of the second transition roller to adjust the tension of the adhesive tape.

[0024] For better understanding and implementation, the present application is described in detail below in conjunction with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a perspective view of a long-stroke tape sticking device according to an embodiment of the present application.

[0026] Figure 2 It is a side view of a long-stroke tape sticking device according to an embodiment of the present application.

[0027] Figure 3 It is a bottom view of a long-stroke tape sticking device according to an embodiment of the present application.

[0028] Figure 4 It is an enlarged view of part I of a long-stroke tape sticking device according to an embodiment of the present application.

[0029] Figure 5 It is an enlarged view of part II of a long-stroke tape sticking device according to an embodiment of the present application.

[0030] The reference signs: frame 100, first guide rail 110, first driving unit 200, first suction cup 300, fixed plate 400, second driving unit 500, first air cylinder 510, second guide rail 520, tape sticking mechanism 600, connecting plate 610, first connecting part 611, first connecting hole 611A, second connecting hole 611B, first mounting plate 620, second connecting part 621, rotating shaft 621A, second mounting plate 630, tape unwinding assembly 640, loading tape disc 641, tape disc mounting shaft 642, roller assembly 650, roller mounting plate 651, flexible roller 652, second air cylinder 653, elastic member 654, first transition roller 655, second transition roller 656, third air cylinder 657, guide block 660, inner recess 660A, air blowing hole 660B, cutter assembly 670, cutter 671, fourth air cylinder 672, second suction cup assembly 680, second suction cup 681, fifth air cylinder 682. DETAILED DESCRIPTION

[0031] The following are specific embodiments of the present application and further describe the technical solutions of the present application in conjunction with the drawings, but the present application is not limited to these embodiments.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0033] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element.

[0034] To solve the technical problems in the background art, the present application provides a long-stroke tape sticking device, as shown in Figure 1 The device includes a rack 100, a first driving unit 200, a first suction cup 300, a fixed plate 400 and a tape sticking mechanism 600. The rack 100 is provided with a first guide rail 110 in the horizontal direction and the first driving unit 200. The fixed plate 400 is slidingly arranged on the first guide rail 110. The tape sticking mechanism 600 is arranged on the fixed plate 400. The first suction cup 300 is arranged on the rack 100 and located at the rear end of the first guide rail 110. The air suction hole of the first suction cup 300 faces upward. The first driving unit 200 is used to drive the unwinding end of the tape sticking mechanism 600 to move from the front end of the first guide rail 110 to above the first suction cup 300 through the fixed plate 400, at which time the first suction cup 300 adsorbs the tape on the tape sticking mechanism 600. Then the first driving unit 200 drives the unwinding end of the tape sticking mechanism 600 to move from above the first suction cup 300 to the front end of the first guide rail 110. Since the first suction cup 300 faces upward and adsorbs the tape on the tape sticking mechanism 600, the movement will pull out the tape in the tape sticking mechanism 600, and then the tape sticking mechanism 600 performs tape sticking, achieving the technical effect of automatic tape pulling out and tape sticking. Specifically, the unwinding end is the part of the tape extending out of the tape sticking mechanism 600.

[0035] As shown in Figure 5 The tape sticking mechanism 600 includes a connecting plate 610. The connecting plate 610 is arranged on the fixed plate 400 by a second driving unit 500. Specifically, as shown in Figure 2As shown, the second driving unit 500 includes a first cylinder 510 and a second guide rail 520, the second guide rail 520 is vertically arranged on the fixed plate 400, the connecting plate 610 is slidingly arranged on the second guide rail 520, the push rod end of the first cylinder 510 is fixedly connected with the connecting plate 610, so that the first cylinder 510 pushes the connecting plate 610 to vertically slide up and down on the second guide rail 520. Figures 3 to 5 As shown, the adhesive sticking mechanism 600 further includes a first mounting plate 620 and a second mounting plate 630, the first mounting plate 620 is arranged on the side of the connecting plate 610 away from the first suction disc 300, and the second mounting plate 630 is arranged on the side of the connecting plate 610 close to the first suction disc 300. The first mounting plate 620 is provided with a tape unwinding assembly 640 and a roller assembly 650. The second mounting plate 630 is provided with a cutter assembly 670 and a second suction disc assembly 680.

[0036] As shown, Figure 4 and Figure 5 As shown, the tape unwinding assembly 640 includes a loading adhesive disc 641 and an adhesive disc mounting shaft 642, the adhesive disc mounting shaft 642 is fixed on the first mounting plate 620, and the loading adhesive disc 641 is sleeved and mounted on the adhesive disc mounting shaft 642. The loading adhesive disc 641 is loaded with adhesive tape, and the adhesive disc is led out from below the loading adhesive disc 641 to the roller assembly 650.

[0037] As shown, Figure 4 As shown, the roller assembly 650 includes a roller mounting plate 651, a flexible roller 652, and a second cylinder 653. The roller mounting plate 651 is arranged at the bottom of the first mounting plate 620, the flexible roller 652 is arranged on the roller mounting plate 651, and the roller mounting plate 651 is connected with the second cylinder 653 arranged on the first mounting plate 620, for driving the flexible roller 652 mounted on the roller mounting plate 651 to stretch and retract up and down to roll the adhesive. Preferably, the second cylinder 653 and the roller mounting plate 651 are connected through an elastic member 654, which provides flexible connection for the flexible roller 652, and provides a buffer force when the flexible roller 652 is tightly attached to the battery cell, so as to avoid impact on the battery cell caused by the flexible roller 652, thereby preventing damage to the battery cell.

[0038] Further, the roller assembly 650 further includes a first transition roller 655, a second transition roller 656, and a third cylinder 657. The first transition roller 655 and the second transition roller 656 are arranged on the first mounting plate 620 between the adhesive tape leading-out end of the loading adhesive disc 641 and the adhesive tape leading-in end of the flexible roller 652, so that the adhesive tape led out from the loading adhesive disc 641 is guided to be wound around the flexible roller 652 to extend outward for adhesive sticking; the second transition roller 656 is further connected with the third cylinder 657 arranged on the first mounting plate 620, and the third cylinder 657 is used to drive the second transition roller 656 to move up and down, so as to adjust the tension of the adhesive tape.

[0039] In a preferred embodiment, a guide block 660 is further arranged on the first mounting plate 620. Specifically, the guide block 660 is arranged on one side of the tape introduction end of the flexible roller 652, the guide block 660 is provided with a concave portion 660A in the direction of the tape introduction end of the flexible roller 652, and the guide block 660 is further provided with a blowing hole 660B connected with the air inlet pipe, and the blowing direction is towards the tape introduction end of the flexible roller 652. After the tape is extended from the second transition roller 656, it is extended to the flexible roller 652 through the concave portion 660A of the guide block 660 for pasting, and after the tape is cut off after pasting, the tape loses tension, at which time the blowing hole 660B blows air to make the tape upward, so as to cooperate with the second suction disc assembly 680 to adsorb the tape, avoid the tape from falling downward, and ensure that the position of the tape corresponds to the first suction disc 300 when the taping mechanism 600 moves to the first suction disc 300.

[0040] The cutter assembly 670 includes a cutter 671 and a fourth cylinder 672, and the cutter 671 and the fourth cylinder 672 are arranged on the second mounting plate 630 corresponding to the tape outlet direction at the end of unwinding. Specifically, the end of the cutter 671 is arranged obliquely at the tape introduction end of the flexible roller 652, and the cutter 671 is connected with the fourth cylinder 672, and the fourth cylinder 672 is used for controlling the cutter 671 to move in and out. After taping is completed on the battery cell, the fourth cylinder 672 controls the cutter 671 to move downward, and the cutter 671 cuts off the tape.

[0041] The second suction disc assembly 680 includes a second suction disc 681 and a fifth cylinder 682, and the second suction disc 681 and the fifth cylinder 682 are arranged on the second mounting plate 630 corresponding to the tape outlet direction at the end of unwinding. Specifically, the second suction disc 681 is arranged on the side opposite to the cutter 671 relative to the flexible roller 652, and the air inlet hole of the second suction disc 681 faces downward, and the second suction disc 681 is connected with the fifth cylinder 682, and the fifth cylinder 682 is used for controlling the second suction disc 681 to move in and out. After taping is cut off, the tape loses tension and falls downward, at which time the blowing hole 660B of the guide block 660 blows air, cooperates with the second suction disc 681 to move downward and adsorb, and adsorbs the tape on the second suction disc 681, so as to ensure that the position of the tape corresponds to the suction port of the first suction disc 300 when the taping mechanism 600 moves to the first suction disc 300.

[0042] In a preferred embodiment, as Figure 5As shown, the connecting plate 610 is provided with a first connecting part 611, and the first mounting plate 620 is provided with a second connecting part 621, and the first connecting part 611 and the second connecting part 621 are rotationally connected through a vertical rotating shaft 621A. In this embodiment, the first connecting part 611 is provided with a first connecting hole 611A and a second connecting hole 611B, and the second connecting part 621 is provided with a third connecting hole; in another embodiment, the first connecting part 611 can be provided to include the third connecting hole, and the second connecting part 621 can be provided to include the first connecting hole 611A and the second connecting hole 611B.

[0043] In Figure 5 the example, the first mounting plate 620 can rotate around the rotating shaft 621A to a first position or a second position. Wherein, when the first mounting plate 620 is located at the first position, the position of the third connecting hole coincides with the first connecting hole 611A, that is Figure 1 and Figure 2 the state of the adhesive mechanism 600 on the right side in FIG. 6, at this time, the first mounting plate 620 and the second mounting plate 630 are located at the same side, that is, the adhesive tape unwinding assembly 640 and the roller assembly 650 on the first mounting plate 620 and the cutter assembly 670 and the second suction disc assembly 680 on the second mounting plate 630 are all located at the same side working position, and the adhesive mechanism 600 can carry out normal adhesive operation; when the first mounting plate 620 is located at the second position, that is Figure 1 and Figure 2 the state of the adhesive mechanism 600 on the left side in FIG. 6 and Figure 5The third connecting hole coincides with the second connecting hole 611B, at this time the first mounting plate 620 rotates to the side of the adhesive taping mechanism 600, the first mounting plate 620 and the second mounting plate 630 are in a vertical state, and the adhesive taping mechanism 600 can be operated to replace the loading adhesive disc 641. Further, the line between the center of the first connecting hole 611A and the axis of the rotating shaft 621A is perpendicular to the line between the center of the second connecting hole 611B and the axis of the rotating shaft 621A, so that when the first mounting plate 620 rotates from the position of the first connecting hole 611A to the position of the second connecting hole 611B around the rotating shaft 621A, the rotation angle is 90 degrees. Further, when the third connecting hole coincides with the first connecting hole 611A or the second connecting hole 611B, the coincident connecting hole is fixed by the spring plunger pin. When the device is in a normal adhesive taping working state, the first mounting plate 620 is located at the first position and is in the same plane as the second mounting plate 630, the first connecting hole 611A coincides with the third connecting hole, and is fixed by the spring plunger pin; when the adhesive tape of the loading adhesive disc 641 is used up and needs to be replaced by a new loading adhesive disc 641, the spring plunger pin in the first connecting hole 611A and the third connecting hole is pulled out, the first mounting plate 620 rotates from the first position to the second position, at this time the first mounting plate 620 rotates 90 degrees to the side of the adhesive taping mechanism 600, the second connecting hole 611B coincides with the third connecting hole, and the spring plunger pin is put down to be fixed, at this time the loading adhesive disc 641 can be replaced, and the operator can operate conveniently.

[0044] The long-stroke rubberizing device provided by the embodiment of the application has the advantages of high automation degree, convenient operation and low production cost.

[0045] The long-stroke rubberizing device provided by the embodiment of the application has the advantages of high automation degree, convenient operation and low production cost.

[0046] The above-mentioned embodiments only express several implementation manners of the application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the application, a number of modifications and improvements can be made, and the application also intends to include these modifications and improvements.

Claims

1. A long-stroke tape sticking device, characterized in that: a rack, a fixed plate, a tape sticking mechanism and a first suction cup are included, the rack is provided with a first guide rail in the horizontal direction and a first driving unit; the fixed plate is slidingly arranged on the first guide rail; the tape sticking mechanism is arranged on the fixed plate, the first suction cup is arranged on the rack and located at the rear end of the first guide rail, and the air inlet hole of the first suction cup faces upward; a cutter assembly and a second suction cup assembly are further arranged on the fixed plate, and the cutter assembly and the second suction cup assembly are arranged in the glue outlet direction of the unwinding end of the tape sticking mechanism in sequence; the first driving unit is used to drive the unwinding end of the tape sticking mechanism through the fixed plate, move from the front end of the first guide rail to above the first suction cup, and drive the unwinding end of the tape sticking mechanism to move from above the first suction cup to the front end of the first guide rail; a second driving unit and a connecting plate are further arranged on the fixed plate, the connecting plate is provided with a first mounting plate and a second mounting plate, the first mounting plate is provided with a tape unwinding assembly, the second mounting plate is provided with the cutter assembly and the second suction cup assembly, and the second driving unit is used to drive the connecting plate to move downward to perform tape sticking operation; the tape unwinding assembly includes a loaded adhesive disc and an adhesive disc mounting shaft, the adhesive disc mounting shaft is fixed on the first mounting plate, and the loaded adhesive disc is sleeved and mounted on the adhesive disc mounting shaft; the connecting plate is provided with a first connecting portion, the first mounting plate is provided with a second connecting portion, and the first connecting portion and the second connecting portion are rotationally connected through a vertical rotating shaft; the first connecting portion is provided with a first connecting hole and a second connecting hole, and the second connecting portion is provided with a third connecting hole; the first mounting plate can rotate to a first position or a second position with the rotating shaft as the axis, wherein when the first mounting plate is located at the first position, the third connecting hole coincides with the first connecting hole, the first mounting plate is located at the same side as the second mounting plate, and the tape sticking mechanism performs normal tape sticking operation; when the first mounting plate is located at the second position, the third connecting hole coincides with the second connecting hole, the first mounting plate is rotated to the side of the tape sticking mechanism, the first mounting plate is in a vertical state with the second mounting plate, and the tape sticking mechanism performs the operation of replacing the loaded adhesive disc.

2. The long-stroke tape sticking device according to claim 1, characterized in that: the second driving unit includes a first cylinder, the fixed plate is provided with a second guide rail in the vertical direction, the connecting plate is slidingly arranged on the second guide rail, and the push rod end of the first cylinder is fixedly connected with the connecting plate.

3. The long-stroke tape sticking device according to claim 2, characterized in that: the first mounting plate is further provided with a roller assembly, the roller assembly includes a roller mounting plate, a flexible roller, a second cylinder and a guide block, the roller mounting plate is arranged at the bottom of the first mounting plate and connected with the second cylinder, and the flexible roller is arranged on the roller mounting plate. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The guide block is arranged at one side of the belt introduction end of the flexible roller, and the guide block is provided with a concave part in the direction of the belt introduction end of the flexible roller.

4. The long-stroke tape sticking device according to claim 3, characterized in that: The guide block is further provided with a blowing hole, the blowing direction of the blowing hole is towards the belt introduction end of the flexible roller, and the blowing hole is connected with an air inlet pipeline.

5. The long-stroke tape sticking device according to claim 4, characterized in that: The roller mounting plate is provided with an elastic member between the push-out rod of the second air cylinder.

6. The long-stroke tape sticking device according to claim 1, characterized in that: The line between the center of the first connecting hole and the axis of the rotating shaft is perpendicular to the line between the center of the second connecting hole and the axis of the rotating shaft.

7. The long-stroke tape sticking device according to claim 5, characterized in that: The loading rubber disc and the flexible roller are further provided with a first transition roller and a second transition roller, the first transition roller and the second transition roller are arranged in sequence on the first mounting plate from the belt introduction end of the loading rubber disc to the belt introduction end of the flexible roller, and the second transition roller is further connected with a third air cylinder arranged on the first mounting plate.

8. The long-stroke tape sticking device according to claim 7, characterized in that: The cutter assembly comprises a cutter and a fourth air cylinder, the end of the cutter is arranged obliquely at the belt introduction end of the flexible roller, the cutter is connected with the fourth air cylinder, and the fourth air cylinder is used for controlling the extension and retraction movement of the cutter; The second suction disc assembly comprises a second suction disc and a fifth air cylinder, the second suction disc is arranged at the side of the cutter opposite to the flexible roller, the air suction hole of the second suction disc faces downward, and the second suction disc is connected with the fifth air cylinder.

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