Conveying device and cutting and stacking all-in-one machine

Abstract

The utility model relates to a conveying device and a cutting and stacking all-in-one machine. The conveying device comprises a fixed supporting seat; one end of the movable supporting seat is rotatably connected to the fixed supporting seat; the conveying belt is arranged on the fixed supporting seat and the movable supporting seat in a sleeving manner; the main driving assembly comprises a main driving wheel for the conveying belt to bypass, and the main driving wheel is used for driving the conveying belt to move forwards in sequence along the fixed supporting seat and the movable supporting seat; a maintenance channel is formed in the space below the movable supporting base, and the movable supporting base can be controlled to turn upwards relative to the fixed supporting base. Thus, when the equipment needs to be maintained, the movable supporting seat is controlled to rotate upwards by a certain angle relative to the fixed supporting seat, at the moment, the conveying belt arranged on the movable supporting seat in a sleeving mode is bent upwards along with the movable supporting seat, and the space of the maintenance channel below the movable supporting seat is large enough; therefore, the maintenance personnel can enter the maintenance channel more smoothly to maintain the equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing equipment, in particular to a conveying device and a slitting and stacking integrated machine. Background Art

[0002] During the battery manufacturing process, a slitting and stacking integrated machine is required to cut a pole piece strip into pole pieces, and then stack the pole pieces to form a stacked battery cell. Due to the relatively complex process flow, multiple processes such as unwinding, die cutting, pole piece conveying, positioning, deviation correction, and stacking need to be completed, resulting in a complex structure and large volume of the slitting and stacking integrated machine. In order to avoid the space required by the equipment meeting the design requirements, the maintenance passage for providing space for equipment maintenance personnel to carry out maintenance work is low and narrow, making it inconvenient for equipment maintenance personnel to maintain the equipment. Summary of the Utility Model

[0003] Based on this, in view of the problem in the prior art that in order to avoid the space required by the equipment meeting the design requirements, the maintenance passage is low and narrow, making it inconvenient for equipment maintenance personnel to maintain the equipment, it is necessary to provide a conveying device and a slitting and stacking integrated machine that improve the above defects.

[0004] A conveying device, comprising:

[0005] A fixed support seat;

[0006] A movable support seat, one end of which is rotatably connected to the fixed support seat;

[0007] A conveying belt sleeved on the fixed support seat and the movable support seat; and

[0008] A main drive assembly, including a main drive wheel around which the conveying belt passes, and the main drive wheel is used to drive the conveying belt to move forward sequentially along the fixed support seat and the movable support seat;

[0009] Wherein, a maintenance passage is formed in the space below the movable support seat, and the movable support seat can be controllably turned upward relative to the fixed support seat.

[0010] In one embodiment, the fixed support seat has a first negative pressure chamber and a plurality of first ventilation holes / grooves all communicating with the first negative pressure chamber. The first negative pressure chamber is communicated with an external negative pressure source through a pipeline. Each of the first ventilation holes / grooves is located on the top surface of the fixed support seat. A part of the conveying belt is supported on the top surface of the fixed support seat and is provided with a plurality of adsorption holes.

[0011] In one embodiment, the movable support seat has a second negative pressure chamber and a plurality of second vent holes / grooves connected to the second negative pressure chamber, the second negative pressure chamber is connected to an external negative pressure source through a pipeline, and each of the second vent holes / grooves is located on the top surface of the movable support seat, and part of the conveyor belt is supported on the top surface of the movable support seat and is provided with a plurality of adsorption holes.

[0012] In one embodiment, the conveying device also includes a first tensioning assembly, which includes a first mounting member and a first reversing roller rotatably connected to the first mounting member, the first mounting member is installed at an end of the movable support seat away from the fixed support seat, the first reversing roller is used for the conveying belt to pass around, and the first mounting member can be controlled to move relative to the movable support seat in a direction close to or away from the fixed support seat, so that the first reversing roller drives the conveying belt to be tensioned or relaxed.

[0013] In one embodiment, the conveying device also includes a second tensioning assembly, which includes a second mounting member and a second reversing roller rotatably connected to the second mounting member, the second mounting member is installed at one end of the fixed support seat away from the movable support seat, and the second reversing roller is used for the conveying belt to pass around.

[0014] In one embodiment, the conveying device further includes a buffer assembly for the conveying belt to pass through, and the buffer assembly can controllably adjust the length of the portion of the conveying belt passing through the buffer assembly to adjust the tension of the conveying belt.

[0015] In one embodiment, the buffer assembly includes a plurality of rollers for the conveyor belt to pass around, and a portion of each of the rollers can be controlled to move relative to another portion to increase or decrease the length of the conveyor belt wrapped between each of the rollers.

[0016] In one embodiment, the conveying device further includes a pressing assembly, which is arranged corresponding to the main drive wheel and can controllably press the conveying belt passing around the main drive wheel onto the main drive wheel.

[0017] In one embodiment, the conveying device also includes a flipping drive assembly, which includes a fixed seat and a telescopic member, one end of the telescopic member is hinged to the fixed seat, and the other end of the telescopic member is hinged to the movable support seat, and the telescopic member can be extended or shortened in a controllable manner to drive the movable support seat to rotate relative to the fixed support seat.

[0018] A cutting and stacking machine includes the conveying device as described in any of the above embodiments.

[0019] In the actual use process of the above-mentioned conveying device and the laminating and cutting integrated machine, the pole piece is loaded onto the part of the conveying belt passing through the movable support seat or the fixed support seat. The main driving wheel drives the conveying belt to move forward sequentially along the movable support seat and the fixed support seat, so that the conveying belt conveys the pole piece thereon. When maintenance of the equipment is required, the movable support seat is controlled to rotate upward by a certain angle relative to the fixed support seat. At this time, the conveying belt sleeved on the movable support seat also bends upward together with the movable support seat, making the space of the maintenance passage below the movable support seat large enough for maintenance personnel to enter the maintenance passage more smoothly, and then maintain the equipment. After the maintenance is completed, the movable support seat is controlled to rotate downward to the initial position relative to the fixed support seat. At this time, the conveying belt can continue to convey the pole piece thereon. Brief Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the conveying device in an embodiment of the present invention (the moving support seat is in the initial position);

[0021] Figure 2 is Figure 1 a schematic structural diagram of the shown conveying device (the moving support seat is in a state of being turned upward by a certain angle). Detailed Description of the Embodiment

[0022] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the specific embodiments of the present invention in detail with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. 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 invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0024] In addition, 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0025] In the present utility model, unless otherwise clearly specified and defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0027] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0028] An embodiment of the present utility model provides a slitting and stacking integrated machine, including a die-cutting device, a conveying device and a stacking device. The die-cutting device is used to die-cut a pole piece strip into pole pieces, the conveying device is used to convey the pole pieces formed by die-cutting, and the stacking device stacks the pole pieces conveyed by the conveying device to form a stacked battery cell.

[0029] Please refer to Figure 1 and Figure 2, in the embodiments of the present application, the conveying device includes a fixed support base 10, a movable support base 20, a conveying belt 30, and a main driving assembly 40. One end of the movable support base 20 is rotatably connected to the fixed support base 10 through a pivot shaft 101. The conveying belt 30 is sleeved on the fixed support base 10 and the movable support base 20. The main driving assembly 40 includes a main driving wheel 41 for the conveying belt 30 to bypass, and the main driving wheel 41 is used to drive the conveying belt 30 to move forward sequentially along the fixed support base 10 and the movable support base 20. A maintenance passage 100 is formed in the space below the movable support base 20. The movable support base 20 can be controlled to turn upwards relative to the fixed support base 10, so as to open the maintenance passage 100 to facilitate maintenance personnel to maintain the equipment through the maintenance passage 100. Optionally, the power provided by the motor can be used to drive the main driving wheel 41 to rotate.

[0030] In the actual use process of the above-mentioned conveying device, the pole piece is loaded onto the part of the conveying belt 30 passing through the movable support base 20 or the fixed support base 10, and the main driving wheel 41 drives the conveying belt 30 to move forward sequentially along the movable support base 20 and the fixed support base 10, so that the conveying belt 30 conveys the pole piece thereon. When maintenance of the equipment is required, the movable support base 20 is controlled to rotate upwards relative to the fixed support base 10 by a certain angle (see Figure 2 ), at this time, the conveying belt 30 sleeved on the movable support base 20 also bends upwards together with the movable support base 20, so that the space of the maintenance passage 100 below the movable support base 20 is large enough for maintenance personnel to enter the maintenance passage 100 more smoothly, and then maintain the equipment. After the maintenance is completed, the movable support base 20 is controlled to rotate downwards relative to the fixed support base 10 to the initial position (see Figure 1 ), at this time, the conveying belt 30 can continue to convey the pole piece thereon.

[0031] Specifically in the embodiment, the conveying device further includes a support frame 80, the fixed support base 10 is installed on the support frame 80, and the main driving wheel 41 of the main driving assembly 40 is also installed on the support frame 80, so that the support frame 80 supports the fixed support base 10, the movable support base 20, and the main driving assembly 40.

[0032] Specifically in the embodiment, the conveying device further includes a flipping drive assembly 60, and the flipping drive assembly 60 includes a fixed seat 61 and a telescopic member 63. One end of the telescopic member 63 is hinged to the fixed seat 61, and the other end of the telescopic member 63 is hinged to the movable support seat 20. The telescopic member 63 can be controlled to extend or contract, so as to drive the movable support seat 20 to flip up or down relative to the fixed support seat 10. In this way, when maintenance is required, the telescopic member 63 is controlled to extend, so that the telescopic member 63 drives the movable support seat 20 to flip up by a certain angle relative to the fixed support seat 10, so that the maintenance passage 100 below the movable support seat 20 is opened, and maintenance personnel can enter the maintenance passage 100 and perform maintenance on the equipment. After the maintenance is completed, the telescopic member 63 is controlled to contract, so that the telescopic member 63 drives the movable support seat 20 to flip down relative to the fixed support seat 10 to the initial position. At this time, driven by the main driving wheel 41, the conveying belt 30 conveys the pole pieces along the top surfaces of the movable support seat 20 and the fixed support seat 10.

[0033] Specifically in the embodiment, the fixed support seat 10 has a first negative pressure chamber and a plurality of first ventilation holes / grooves all communicating with the first negative pressure chamber. The first negative pressure chamber is communicated with an external negative pressure source through a pipeline, so that the external negative pressure source can evacuate the first negative pressure chamber, making the first negative pressure chamber in a negative pressure state. Each of the first ventilation holes / grooves is located on the top surface of the fixed support seat 10, a part of the conveying belt 30 is supported on the top surface of the fixed support seat 10, and is provided with a plurality of adsorption holes. In this way, the external negative pressure source evacuates the first negative pressure chamber, making the first negative pressure chamber in a negative pressure state. At the same time, the negative pressure in the first negative pressure chamber is transmitted to the adsorption holes on the conveying belt 30 (the part passing through the top surface of the fixed support seat 10) through the corresponding first ventilation holes / grooves, so that the negative pressure generated at the part of the adsorption holes adsorbs and fixes the pole pieces on the conveying belt 30, thereby avoiding the displacement of the pole pieces relative to the conveying belt 30 during the process of the pole pieces being conveyed along the top surface of the fixed support seat 10 by the conveying belt 30, resulting in position deviation, and ensuring better position accuracy of the pole pieces.

[0034] Specifically in the embodiment, the movable support seat 20 has a second negative pressure chamber and a plurality of second ventilation holes / grooves that are all communicated with the second negative pressure chamber. The second negative pressure chamber is communicated with an external negative pressure source through a pipeline, so that the external negative pressure source can evacuate the second negative pressure chamber, making the second negative pressure chamber in a negative pressure state. Each of the second ventilation holes / grooves is located on the top surface of the fixed support seat 10, and a part of the conveying belt 30 is supported on the top surface of the fixed support seat 10. In this way, the external negative pressure source evacuates the second negative pressure chamber, making the second negative pressure chamber in a negative pressure state. At the same time, the negative pressure in the second negative pressure chamber is transmitted to the adsorption holes on the conveying belt 30 (the part passing through the top surface of the movable support seat 20) through the corresponding second ventilation holes / grooves, so that the negative pressure generated at the part of the adsorption holes adsorbs and fixes the pole piece on the conveying belt 30, thereby avoiding the displacement of the pole piece relative to the conveying belt 30 and resulting in a position deviation during the process of the pole piece being conveyed along the top surface of the movable support seat 20 by the conveying belt 30, and ensuring better position accuracy of the pole piece.

[0035] It should be noted that when the movable support seat 20 is in the initial position (see Figure 1 ), the top surface of the movable support seat 20 is flush with the top surface of the fixed support seat 10 (i.e., in the same horizontal plane), so that the pole piece can move smoothly along the top surfaces of the fixed support seat 10 and the movable support seat 20 following the conveying belt 30. When maintenance is required, the movable support seat 20 is controlled to turn upward by a certain angle (such as 30°, 45°, 60° or 90°, etc.), and at this time, the top surface of the movable support seat 20 and the top surface of the fixed support seat 10 are arranged at an angle (see Figure 2 ).

[0036] Optionally, one end of the fixed support seat 10 away from the movable support seat 20 is the upstream end a1, and one end of the movable support seat 20 away from the fixed support seat 10 is the downstream end a2. The pole piece is first loaded onto the conveying belt 30 passing through the upstream end a1 and is adsorbed and fixed on the conveying belt 30 by the negative pressure generated at the corresponding adsorption holes. Then, the pole piece moves along the top surface of the fixed support seat 10 following the conveying belt 30 towards the movable support seat 20, and then moves along the top surface of the movable support seat 20 towards the downstream end a2. When the pole piece reaches the downstream end a2, the pole piece is unloaded from the conveying belt 30.

[0037] Specifically in the embodiment, the conveying device further includes a first tensioning assembly 50, and the first tensioning assembly 50 includes a first mounting member and a first reversing roller. The first mounting member is mounted at one end of the movable support seat 20 away from the fixed support seat 10 (i.e., the downstream end a2 mentioned above). The first reversing roller is rotatably connected to the first mounting member and the conveying belt 30 passes around it. The first mounting member can be controllably moved relative to the movable support seat 20 in a direction close to or away from the fixed support seat 10, so that the first reversing roller drives the conveying belt 30 to be tensioned or relaxed. Thus, when maintenance is required, first, control the first mounting member to move a certain distance relative to the movable support seat 20 in a direction close to the fixed support seat 10 (i.e., move a certain distance to the right as shown in the embodiment of Figure 1 ), so that the conveying belt 30 is relatively loose; then, control the movable support seat 20 to flip upward by a certain angle relative to the fixed support seat 10, so that maintenance personnel can more conveniently enter the maintenance passage 100 below the movable support seat 20. After the maintenance is completed, first control the movable support seat 20 to rotate downward to the initial position relative to the fixed support seat 10; then, control the first mounting member to move a certain distance relative to the movable support seat 20 in a direction away from the fixed support seat 10 (i.e., move a certain distance to the left as shown in the embodiment of Figure 1 ), thereby driving the first reversing roller to tension the conveying belt 30. At this time, the conveying belt 30 can continue to convey the pole pieces thereon.

[0038] It should be noted that the power provided by the linear module can be used to drive the first mounting member to move relative to the movable support seat 20, so as to realize the automatic adjustment of the position of the first reversing roller; of course, a manual adjustment mechanism can also be used to drive the first mounting member to move relative to the movable support seat 20, so as to realize the manual adjustment of the position of the first reversing roller, and no special limitation is made here.

[0039] Specifically in the embodiment, the conveying device further includes a second tensioning assembly (not shown in the figure), and the second tensioning assembly includes a second mounting member and a second reversing roller. The second mounting member is mounted at one end of the fixed support seat 10 away from the movable support seat 20 (i.e., the upstream end a1 mentioned above). The second reversing roller is rotatably connected to the second mounting member and the conveying belt 30 passes around it. Thus, driven by the main driving wheel 41, the conveying belt 30 located below the fixed support seat 10 reaches the top surface of the fixed support seat 10 after being reversed by the second reversing roller, and then moves along the top surfaces of the fixed support seat 10 and the movable support seat 20, and then reaches below the movable support seat 20 after being reversed by the first reversing roller, and so on in a cycle.

[0040] It should be noted that, in some embodiments, the second mounting member is relatively fixed to the fixed support base 10. Of course, in other embodiments, the second mounting member can also be configured to be able to adjust its position relative to the fixed support base 10, so as to achieve the purpose of adjusting the tension of the conveyor belt 30.

[0041] Specifically in the embodiment, the conveying device further includes a buffer assembly 70 for the conveyor belt 30 to pass around. The buffer assembly 70 is installed on the support frame 80 and can be controlled to adjust the length of the part of the conveyor belt 30 passing around the buffer assembly 70, so as to achieve the purpose of adjusting the tension of the conveyor belt 30 and avoid the tension of the conveyor belt 30 being too large or too small. In this way, when maintenance is required, before controlling the movable support base 20 to turn upward relative to the fixed support base 10, the buffer assembly 70 adjusts and reduces the length of the part of the conveyor belt 30 passing around the buffer assembly 70, so that the conveyor belt 30 becomes looser, and it is avoided that the conveyor belt 30 is tightened when the movable support base 20 is turned upward later, resulting in the failure of the movable support base 20 to turn in place.

[0042] Specifically in the embodiment, the buffer assembly 70 includes a plurality of idler rollers 71 for the conveyor belt 30 to pass around. A part of each idler roller 71 can be controlled to move relative to another part, so as to increase or decrease the length of the conveyor belt 30 wound between the idler rollers 71.

[0043] Furthermore, the buffer assembly 70 further includes an adjustment driving member 73 and a moving seat 72 movably connected to the support frame 80. The adjustment driving member 73 is installed on the support frame 80 and is drivingly connected to the moving seat 72, so that the adjustment driving member 73 can drive the moving seat 72 to move relative to the support frame 80. A part of each idler roller 71 is installed on the support frame 80, and the other part is installed on the moving seat 72. Thus, the moving seat 72 can drive the idler rollers 71 thereon to approach or move away from the idler rollers 71 installed on the support frame 80, so that the length of the conveyor belt 30 wound between the idler rollers 71 increases or decreases, and further achieves the purpose of adjusting the tension of the conveyor belt 30. Optionally, the adjustment driving member 73 can be a cylinder. A slider 74 is provided on the moving seat 72, and a slide rail 81 is provided on the support frame 80. The slider 74 is installed on the slide rail 81 and is movable along the slide rail 81. In this way, the movement of the moving seat 72 relative to the support frame 80 is guided by the movement of the slider 74 along the slide rail 81.

[0044] Optionally, the number of idler rollers 71 is three, and two of the idler rollers 71 are fixed stationary idler rollers 71a. These two stationary idler rollers 71a ( Figure 1Only one fixed roller 71a is shown as being installed on the support frame 80; the other roller 71 is a movable roller 71b that can move, and this movable roller 71b is installed on the moving seat 72. The conveyor belt 30 sequentially passes around one of the fixed rollers 71a, the movable roller 71b, and the other fixed roller 71a. When it is necessary to adjust the tension of the conveyor belt 30, the adjusting drive member 73 drives the moving seat 72 to move relative to the support frame 80, so as to drive the movable roller 71 to move closer to or away from the two fixed rollers 71, thereby increasing or decreasing the length of the conveyor belt 30 wound between the rollers 71, and further achieving the purpose of adjusting the tension of the conveyor belt 30.

[0045] Specifically in the embodiment, the conveying device further includes a pressing assembly 90 installed on the support frame 80. This pressing assembly 90 is arranged corresponding to the main driving wheel 41 and can controllably press the conveyor belt 30 passing around the main driving wheel 41 against the main driving wheel 41. In this way, when maintenance is required, before controlling the movable support seat 20 to turn upward relative to the fixed support seat 10, first use the pressing assembly 90 to press and fix the conveyor belt 30 on the main driving wheel 41, so as to prevent the conveyor belt 30 from being driven during the subsequent turning of the movable support seat 20 relative to the fixed support seat 10.

[0046] Furthermore, the pressing assembly 90 includes a pressing drive member 91 and a pressing block 93. This pressing drive member 91 is installed on the support frame 80. The pressing block 93 is installed at the driving end of the pressing drive member 91 and is arranged facing the main driving wheel 41. This pressing drive member 91 can drive the pressing block 93 to move closer to or away from the main driving wheel 41, so that the pressing block 93 presses the conveyor belt 30 against the main driving wheel 41 or releases it. Optionally, the pressing drive member 91 can adopt a cylinder. The pressing block 93 has a pressing arc surface facing the main driving wheel 41, and the shape of this pressing arc surface matches the shape of the surface of the main driving wheel 41 for the conveyor belt 30 to pass around, which is beneficial to increasing the contact area between the pressing block 93 and the conveyor belt 30 when pressing the conveyor belt 30 against the main driving wheel 41, and ensuring that the pressing on the conveyor belt 30 is more stable and reliable.

[0047] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, 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, it should be considered to be within the scope described in this specification.

[0048] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A conveying device, characterized in that, include: Fixed support seat (10); a movable support seat (20), one end of the movable support seat (20) being rotatably connected to the fixed support seat (10); A conveying belt (30) is sleeved on the fixed support seat (10) and the movable support seat (20); and A main drive assembly (40) includes a main drive wheel (41) for the conveyor belt (30) to pass around, and the main drive wheel (41) is used to drive the conveyor belt (30) to move forward sequentially along the fixed support seat (10) and the movable support seat (20); The space below the movable support seat (20) forms a maintenance passage (100), and the movable support seat (20) can be controlled to flip upward relative to the fixed support seat (10).

2. The conveying device according to claim 1, wherein The fixed support seat (10) has a first negative pressure chamber and a plurality of first vent holes / grooves connected to the first negative pressure chamber. The first negative pressure chamber is connected to an external negative pressure source through a pipeline. Each of the first vent holes / grooves is located on the top surface of the fixed support seat (10). Part of the conveyor belt (30) is supported on the top surface of the fixed support seat (10) and is provided with a plurality of adsorption holes.

3. The conveying device according to claim 1, characterized in that, The movable support seat (20) has a second negative pressure chamber and a plurality of second vent holes / grooves connected to the second negative pressure chamber. The second negative pressure chamber is connected to an external negative pressure source through a pipeline. Each of the second vent holes / grooves is located on the top surface of the movable support seat (20). Part of the conveyor belt (30) is supported on the top surface of the movable support seat (20) and is provided with a plurality of adsorption holes.

4. The conveying device according to claim 1, characterized in that The conveying device also includes a first tensioning assembly (50), which includes a first mounting member and a first reversing roller rotatably connected to the first mounting member, the first mounting member is mounted on an end of the movable support seat (20) away from the fixed support seat (10), the first reversing roller is used for the conveying belt (30) to pass around, and the first mounting member can be controlled to move relative to the movable support seat (20) in a direction close to or away from the fixed support seat (10), so that the first reversing roller drives the conveying belt (30) to be tensioned or relaxed.

5. The conveying device according to claim 1, characterized in that The conveying device also includes a second tensioning assembly, which includes a second mounting member and a second reversing roller rotatably connected to the second mounting member. The second mounting member is installed at one end of the fixed support seat (10) away from the movable support seat (20), and the second reversing roller is used for the conveying belt (30) to be wound around.

6. The conveying device according to claim 1, wherein, The conveying device further comprises a buffer assembly (70) for the conveying belt (30) to pass through, and the buffer assembly (70) can controllably adjust the length of the portion of the conveying belt (30) passing through the buffer assembly (70) to adjust the tension of the conveying belt (30).

7. The conveying device according to claim 6, wherein The cache component (70) includes a plurality of idler rollers (71) around which the conveyor belt (30) passes. A part of each of the idler rollers (71) can be controllably moved relative to another part to increase or decrease the length of the conveyor belt (30) wound between the idler rollers (71).

8. The conveying device according to claim 1, characterized in that The conveying device further includes a pressing component (90). The pressing component (90) is arranged corresponding to the main driving wheel (41) and can controllably press the conveyor belt (30) passing around the main driving wheel (41) onto the main driving wheel (41).

9. The conveying device according to claim 1, characterized in that, The conveying device further includes a flipping driving component (60). The flipping driving component (60) includes a fixed seat (61) and a telescopic member (63). One end of the telescopic member (63) is hinged to the fixed seat (61), and the other end of the telescopic member (63) is hinged to the movable support seat (20). The telescopic member (63) can be controllably extended or shortened to drive the movable support seat (20) to rotate relative to the fixed support seat (10).

10. A cutting and folding integrated machine, characterized in that, Comprising the conveying device according to any one of claims 1 to 9.

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