Waste discharge device and cutting and stacking all-in-one machine equipment

Abstract

The utility model relates to a waste discharge device and cutting and stacking all-in-one machine equipment. The waste discharge device comprises a bearing mechanism, a material receiving mechanism and a material collecting mechanism. The materials judged to be NG can be firstly transferred to the material receiving box from the bearing platform, and after a discharging port of the material receiving box is opened, the materials can be transferred into a waste material box below the discharging port to be collected. And after the waste material box is full of the materials, the waste material box is moved out from the lower part of the material receiving box under the driving of the transferring assembly, so that a worker can conveniently remove the materials in the waste material box or replace a new waste material box. In the process, the waste box is moved to the outside, so that the operation of a worker does not interfere with the working process of the equipment. In addition, after the waste material box is moved out, the material receiving box can continue to receive the materials moved out of the bearing platform and conduct temporary storage. Therefore, the waste discharge device and the cutting and stacking all-in-one machine equipment do not need to be shut down in the waste discharge process, and therefore the utilization rate is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery equipment, and particularly relates to a waste discharging device and a slitting and laminating integrated machine equipment. Background Art

[0002] During the working process of the slitting and laminating integrated machine, the cut electrode sheets need to be detected as qualified before entering the lamination step, and the unqualified waste materials need to be removed from the production line. Currently, the common waste discharging method is to transfer the electrode sheets determined as NG waste materials by a manipulator to a waste box, and the waste box collects the waste materials. After the waste box is full, the waste box is cleared or replaced manually. When the staff performs the clearing and replacement operations, the slitting and laminating integrated machine needs to be shut down. Thus, the waste discharging operation will reduce the operating time of the equipment, thereby affecting the equipment utilization rate. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a waste discharging device and a slitting and laminating integrated machine equipment that can effectively improve the utilization rate in view of the above problems.

[0004] A waste discharging device includes:

[0005] A carrying mechanism, including a carrying platform for carrying materials;

[0006] A material receiving mechanism, including a material receiving box, the bottom of the material receiving box is provided with a discharge port, the discharge port can be operably opened or closed, and the material receiving box can receive the materials moved out from the carrying platform; and

[0007] An aggregate mechanism, including a transfer assembly and a waste box installed at the driving end of the transfer assembly. The waste box can be driven by the transfer assembly to move below the discharge port to receive the materials discharged from the discharge port, and can be driven by the transfer assembly to move out from below the discharge port.

[0008] In one embodiment, the carrying mechanism further includes a rectifying component, the carrying platform is installed at the driving end of the rectifying component, and the rectifying component can drive the carrying platform to translate along a direction parallel to the carrying surface of the carrying platform, and can drive the carrying platform to rotate around an axis perpendicular to the carrying surface of the carrying platform.

[0009] In one embodiment, during the process of driving the carrying platform to translate, the rectifying component can move the carrying platform above the material receiving box or move it out from above the material receiving box.

[0010] In one embodiment, the material receiving mechanism further includes a lifting component, the material receiving box is installed at the driving end of the lifting component, and can be lifted by the lifting component to approach or move away from the carrying platform.

[0011] In one embodiment, the lifting assembly can drive the material receiving box to rise until the upper edge of the material receiving box is flush with the bearing surface of the bearing platform moved out from above the material receiving box, and can drive the material receiving box to descend until the discharge port is docked with the waste box below the discharge port.

[0012] In one embodiment, the lifting assembly includes a mounting base and a jacking driving member housed in the mounting base. The material receiving box is slidably mounted on the side wall of the mounting base along a direction perpendicular to the bearing surface of the bearing platform and is in transmission connection with the jacking driving member.

[0013] In one embodiment, the material receiving box includes a frame and two support plates rotatably mounted in the frame. The two support plates form the bottom of the material receiving box, and the two support plates can open or close to open or close the discharge port.

[0014] In one embodiment, the material receiving box further includes an opening and closing driving member. The opening and closing driving member is mounted on the frame and can drive the two support plates to rotate;

[0015] Alternatively, the two support plates are supported by damping elements and are closed under the support of the damping elements so that the discharge port is in a closed state.

[0016] In one embodiment, the transfer assembly includes a base, a transfer guide rail mounted on the base, and a transfer driving member. The waste box is slidably mounted on the transfer guide rail and is in transmission connection with the transfer driving member.

[0017] A slitting and stacking integrated machine device includes at least two waste discharging devices as described in any one of the above preferred embodiments. One of the waste discharging devices is used to detect the positive electrode sheet, and the other waste discharging device is used to detect the negative electrode sheet.

[0018] For the above waste discharging device and the slitting and stacking integrated machine device, the materials determined to be NG can be first transferred from the bearing platform to the material receiving box. After the discharge port of the material receiving box is opened, the materials can be transferred into the waste box below the discharge port for collection. After the waste box is full, the waste box will be moved out from below the material receiving box under the drive of the transfer assembly, so as to facilitate the staff to remove the materials in the waste box or replace it with a new waste box. During this process, since the waste box has been moved to the outside, the operation of the staff will not interfere with the working process of the equipment. Moreover, the material receiving box can continue to receive the materials moved out from the bearing platform and perform buffering after the waste box is moved out. Therefore, the above waste discharging device and the slitting and stacking integrated machine device do not need to stop during the waste discharging process, thus significantly improving the operation rate. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the waste discharging device distribution of the slitting and laminating integrated machine equipment in an embodiment;

[0021] Figure 2 It is the front view of the waste discharging device in the preferred embodiment of the present utility model;

[0022] Figure 3 It is Figure 2 The top view of one usage state of the waste discharging device shown;

[0023] Figure 4 It is Figure 2 The top view of another usage state of the waste discharging device shown;

[0024] Figure 5 It is Figure 2 The structural schematic diagram of the material receiving mechanism in the waste discharging device shown;

[0025] Figure 6 It is Figure 5 The front view of the material receiving mechanism shown;

[0026] Figure 7 It is Figure 2 The structural schematic diagram of the aggregate mechanism in the waste discharging device shown. Detailed Embodiments

[0027] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will make a detailed description of the specific embodiments of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by 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. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 on the present utility model.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. 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 and clearly defined.

[0030] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should 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 elements or the interaction relationship between two elements, 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.

[0031] 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.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate 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 intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0033] Please refer to Figure 1 , the present utility model provides a waste discharging device 100 and a slitting and laminating integrated machine device (not shown in the figure). Among them, the above-mentioned slitting and laminating integrated machine device includes a waste discharging device 100.

[0034] The above-mentioned slitting and laminating integrated machine device generally further includes a cutting device and a laminating device. The cutting device can cut the strip to obtain the electrode sheet. After the electrode sheet is detected, the qualified electrode sheet enters the laminating device for subsequent laminating operation, while the unqualified electrode sheet is removed at the waste discharging device 100. There are two waste discharging devices 100, one of the waste discharging devices 100 is used to detect the positive electrode sheet, and the other waste discharging device 100 is used to detect the negative electrode sheet. The two waste discharging devices 100 are generally symmetrically distributed left and right. Of course, the number of waste discharging devices 100 can also be increased accordingly to match the rhythm of high-speed cutting and sheet making and high-speed laminating.

[0035] Please refer to Figure 2 , Figure 3 and Figure 4 , the waste discharging device 100 in the preferred embodiment of the present utility model includes a carrying mechanism 110, a material receiving mechanism 120 and an aggregate mechanism 130.

[0036] The carrying mechanism 110 includes a carrying platform 111, and the carrying platform 111 is used to carry materials. Specifically, the materials in this embodiment refer to electrode sheets. The carrying surface of the carrying platform 111 is a flat plane, generally arranged parallel to the horizontal plane, so that the electrode sheet carried on the carrying platform 111 can be unfolded. In addition, in order to prevent the electrode sheet from slipping off the carrying platform 111, a plurality of adsorption holes communicating with the vacuum chamber are generally opened on the carrying surface to form a negative pressure on the carrying surface.

[0037] The electrode sheet can be detected before entering the carrying platform 111 or on the carrying platform 111. Specifically, in this embodiment, in order to save workstations and improve efficiency, the electrode sheet is detected on the carrying platform 111. More specifically, a shooting module such as a CCD camera (not shown in the figure) can be used to take pictures of the electrode sheet carried on the carrying platform 111, and by comparing and analyzing the obtained image information, it can be detected whether there are defects in the electrode sheet, so as to determine the electrode sheet as qualified or unqualified.

[0038] In this embodiment, the carrying mechanism 110 further includes a rectifying component 112. The carrying platform 111 is installed at the driving end of the rectifying component 112. The rectifying component 112 can drive the carrying platform 111 to translate in a direction parallel to the carrying surface of the carrying platform 111 and can drive the carrying platform 111 to rotate around an axis perpendicular to the carrying surface of the carrying platform 111.

[0039] By driving the carrying platform 111 to translate and rotate, the rectifying component 112 can drive the pole piece carried on the carrying platform 111 to adjust its orientation, so that the pole piece can be in the best detection position. Moreover, by adjusting the orientation of the pole piece, it is also convenient for the manipulator to grasp the pole piece after the detection is completed, so as to smoothly transfer the pole piece that has completed the detection on the carrying platform 111 to the laminating device or reject it.

[0040] Specifically, the rectifying component 112 generally includes two linear driving modules and one rotating module. The two linear driving modules can be driven independently in two mutually perpendicular directions. The carrying platform 111 is installed at the rotating end of the rotating module, the rotating module is installed at the driving end of one of the linear driving modules, and this linear driving module is installed at the driving end of the other linear driving module.

[0041] Please refer to Figure 5 and Figure 6 , the receiving mechanism 120 includes a receiving box 121. The receiving box 121 can receive the materials removed from the carrying platform 111, that is, the pole pieces. Specifically, the pole pieces determined to be NG can be grasped by the manipulator and placed in the receiving box 121. The receiving box 121 is generally a long strip-shaped box structure, which matches the shape of the pole piece. An opening is formed on one side of the top of the receiving box 121, and the manipulator can place the grasped pole piece into the receiving box 121 through the opening at the top.

[0042] Furthermore, a discharge port (not shown in the figure) is provided at the bottom of the receiving box 121, and the discharge port can be operably opened or closed. When the discharge port is closed, the received pole pieces can be cached in the receiving box 121; when the discharge port is opened, the pole pieces in the receiving box 121 can be discharged downward from the discharge port.

[0043] In this embodiment, during the process of driving the carrying platform 111 to translate, the rectifying component 112 can move the carrying platform 111 above the receiving box 121 or move it out from above the receiving box 121.

[0044] That is to say, the carrying mechanism 110 and the receiving mechanism 120 can share part of the space in the up and down direction. As Figure 4As shown, during the normal detection process, the deviation rectifying component 112 can drive the carrying platform 111 to move above the receiving box 121, so that the carrying platform 111 and the receiving box 121 are stacked in the vertical direction, and the receiving box 121 is hidden below the carrying platform 111, which is beneficial to saving installation space. As Figure 3 shown, when a NG pole piece is detected, the deviation rectifying component 112 drives the carrying platform 11 away from above the receiving box 121, so as to form an avoidance position for the receiving box 121. At this time, the manipulator can carry the NG pole piece from the carrying platform 111 to the inside of the receiving box 121. Moreover, since the receiving box 121 is located below the original position of the carrying platform 111, the manipulator requires a shorter stroke when carrying the pole piece to the receiving box 121.

[0045] In this embodiment, the receiving box 121 includes a frame 1211 and two support plates 1212 rotatably installed on the frame 1211. The two support plates 1211 form the bottom of the receiving box 121, and the two support plates 1212 can open or close to open or close the discharge port.

[0046] Specifically, the two support plates 1212 and the frame 1211 enclose a receiving space with an open top, and the two support plates 1212 are used to support the pole pieces entering the receiving box 121. The rotation axes of the two support plates 1212 are substantially parallel, and a discharge port of the receiving box 121 is formed between them. When the two support plates 1212 rotate around the rotation axes and close together (for example, Figure 5 as shown, the left support plate 1212 rotates counterclockwise and the right support plate 1212 rotates clockwise), the discharge port of the receiving box 121 is closed.

[0047] When the two support plates 1212 rotate and open (for example, Figure 5 as shown, the left support plate 1212 rotates clockwise and the right support plate 1212 rotates counterclockwise), the discharge port of the receiving box 121 is opened. It can be seen that when the two support plates 1212 rotate and open the discharge port, the opening range of the discharge port is large, so as to avoid jamming of the pole pieces during the process of discharging from the discharge port.

[0048] Furthermore, in this embodiment, the receiving box 121 further includes an opening and closing driving member 1213. The opening and closing driving member 1213 is installed on the frame 1211 and can drive the two support plates 1212 to rotate.

[0049] The opening and closing driving member 1213 can adopt driving components such as motors and rotary cylinders, and can drive the two support plates 1212 to rotate around the rotating shaft, so as to achieve the purpose of opening or closing the discharge port. Specifically, two opening and closing driving members 1213 can be provided to drive the two support plates 1212 to rotate respectively. In addition, only one opening and closing driving member 1213 can also be provided, and the two support plates 1212 can be synchronously driven to rotate through transmission components such as gears.

[0050] It should be noted that in other embodiments, the discharge port of the receiving box 121 can also be automatically opened or closed in other ways. In one embodiment, the two support plates 1212 are supported by damping elements (not shown in the figure), and are brought together under the support of the damping elements so that the discharge port is in a closed state. When the gravity of the pole piece accommodated in the receiving box 121 can offset the action of the damping element, the two support plates 1212 can be forced to open to open the discharge port.

[0051] For example, the damping element is set as a torsion spring. Torsion springs are arranged on the rotating shafts of the two support plates 1212. The torsion provided by the torsion springs causes the two support plates 1212 to come together, so that the discharge port remains in a closed state. When the gravity of the pole piece accommodated in the receiving box 121 exceeds the torsion of the torsion spring, the two support plates 121 can rotate and open under the action of the gravity of the pole piece, so as to open the discharge port.

[0052] Please refer to again Figure 2 And refer to together Figure 7 , the aggregate mechanism 130 includes a transfer assembly 132 and a waste box 131, and the waste box 131 is installed at the driving end of the transfer assembly 132. Among them, the waste box 131 can be driven by the transfer assembly 132 to move below the discharge port to receive the materials discharged from the discharge port, and can be driven by the transfer assembly 132 to move out from below the discharge port.

[0053] When the waste box 131 is not full, it can be driven by the transfer assembly 132 to move below the discharge port of the receiving box 121. When discharging the waste of the pole piece determined to be NG, the NG pole piece can be first transferred from the bearing platform 111 to the receiving box 121 for transfer and buffering. Then, the discharge port of the receiving box 121 is opened, and the pole piece can be discharged through the discharge port and fall into the waste box 131 below for collection. After the waste box 131 is full, the transfer assembly 132 drives the waste box 131 to move out from below the receiving box 121, so as to facilitate the staff to remove the pole pieces in the waste box 131 or replace it with a new waste box 131. During this process, since the waste box 131 has been moved to the outside, the operation of the staff will not interfere with the working process of the equipment. Moreover, the receiving box 121 can continue to receive the NG pole pieces transferred from the bearing platform 111 and buffer them after the waste box 131 is removed.

[0054] After the staff completes the cleaning or replacement operation, the transfer assembly 132 will drive the waste box 131 to move below the discharge port again to prepare for receiving the pole pieces buffered by the receiving box 121. It can be seen that the waste discharging device 100 does not need to stop during the waste discharging process, thus significantly improving the equipment utilization rate.

[0055] In this embodiment, the transfer assembly 132 includes a base 1321, a transfer guide rail 1322 installed on the base 1321, and a transfer driving member 1323. The waste box 131 is slidably installed on the transfer guide rail 1322 and is in transmission connection with the transfer driving member 1323.

[0056] The transfer driving member 1323 can be a cylinder, and the transfer guide rail 1322 extends from the outside of the waste discharging device 100 to below the receiving box 121. The transfer driving member 1323 drives the waste box 131 to slide along the transfer guide rail 1322, and then can drive the waste box 131 to move between below the receiving box 121 and the outside of the waste discharging device 100.

[0057] Please refer to again Figure 5 and Figure 6 In this embodiment, the receiving mechanism 120 further includes a lifting assembly 122. The receiving box 121 is installed at the driving end of the lifting assembly 122 and can move up and down under the drive of the lifting assembly 122 to approach or move away from the bearing platform 111.

[0058] Specifically, when the receiving box 121 is used to receive the pole pieces removed from the bearing platform 111, the receiving box 121 can move upward under the drive of the lifting assembly 122, so that the receiving box 121 is closer to the bearing platform 111, thereby shortening the stroke of the manipulator. When the pole pieces buffered in the receiving box 121 need to be transferred to the waste box 131, the receiving box 121 moves downward under the drive of the lifting assembly 122, so that the discharge port of the receiving box 121 is close to the waste box 131. In this way, the stroke experienced by the pole pieces from being discharged from the discharge port to falling into the receiving box 121 is short, thus effectively avoiding the scattering of the pole pieces during the transfer to the waste box 131.

[0059] Furthermore, in this embodiment, the lifting assembly 122 can drive the receiving box 121 to rise until the upper edge of the receiving box 121 is flush with the bearing surface of the bearing platform 111 moved out from above the receiving box 121, and can drive the receiving box 121 to descend until the discharge port is docked with the waste box 131 below the discharge port.

[0060] The upper edge of the receiving box 121 generally refers to the edge of the top opening of the receiving box 121. When the upper edge of the receiving box 121 is flush with the bearing surface of the bearing platform 111, the manipulator for grasping the pole piece can smoothly place the pole piece into the receiving box 121 without moving downward, which can further shorten the travel of the manipulator and avoid interference between the manipulator and other structures of the equipment.

[0061] When the discharge port of the receiving box 121 is docked with the waste box 131, the discharge port of the receiving box 121 is communicated with the inlet of the waste box 131. Therefore, the pole piece discharged from the discharge port of the receiving box 121 can directly fall into the receiving box 121, which can further prevent the pole piece from scattering. Moreover, since the drop experienced by the pole piece during the transfer from the receiving box 121 to the waste box 131 is small, the pole pieces can be stacked orderly in the waste box 131 to avoid chaos.

[0062] Specifically, in this embodiment, the lifting assembly 122 includes a mounting base 1221 and a jacking driving member 1222 received in the mounting base 1221. The receiving box 121 is slidably mounted on the side wall of the mounting base 1221 in a direction perpendicular to the bearing surface of the bearing platform 111 and is in transmission connection with the jacking driving member 1222.

[0063] The mounting base 1221 supports the receiving mechanism 120, and the jacking driving member 1222 can be a cylinder. By embedding the jacking driving member 1222 into the mounting base 1221, space can be effectively saved. The receiving box 121 can be slidably mounted on the mounting base 1221 through a lifting guide rail 1223 in a direction perpendicular to the bearing surface of the bearing platform 111 and a slider cooperating therewith, and is lifted under the drive of the jacking driving member 1222.

[0064] For the above waste discharging device 100 and the slitting and laminating integrated machine equipment, the materials determined to be NG can be first transferred from the bearing platform 111 to the receiving box 121. After the discharge port of the receiving box 121 is opened, the materials can be transferred to the waste box 131 below the discharge port for collection. After the waste box 131 is full, the waste box 131 will be moved out from below the receiving box 121 under the drive of the transfer assembly 132, so as to facilitate the staff to remove the materials in the waste box 131 or replace it with a new waste box 131. During this process, since the waste box 131 has been moved to the outside, the operation of the staff will not interfere with the working process of the equipment. Moreover, after the waste box 131 is moved out, the receiving box 121 can continue to receive the materials transferred from the bearing platform 111 and perform buffering. Therefore, the above waste discharging device 100 and the slitting and laminating integrated machine equipment do not need to stop during the waste discharging process, thus significantly improving the operation rate.

[0065] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0066] The above-described embodiments only represent several implementation manners of the present utility model. The description 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 belong to 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 waste discharge device, characterized in that: include: A carrying mechanism, including a carrying platform for carrying materials; A material receiving mechanism, comprising a material receiving box, a material outlet is provided at the bottom of the material receiving box, the material outlet can be opened or closed, and the material receiving box can receive the material removed from the carrying platform; and The material collecting mechanism includes a transfer component and a waste box installed on the driving end of the transfer component. The waste box can be moved to the bottom of the discharge port under the drive of the transfer component to receive the material discharged from the discharge port, and can be moved out from under the discharge port under the drive of the transfer component.

2. The waste discharge device according to claim 1, characterized in that: The bearing mechanism also includes a correction component, and the bearing platform is installed at the driving end of the correction component. The correction component can drive the bearing platform to translate in a direction parallel to the bearing surface of the bearing platform, and can drive the bearing platform to rotate around an axis perpendicular to the bearing surface of the bearing platform.

3. The waste discharge device according to claim 2, characterized in that: In the process of driving the carrying platform to translate, the deviation-correcting component can enable the carrying platform to move to the top of the material receiving box or move out from the top of the material receiving box.

4. The waste discharge device according to claim 3, characterized in that: The material receiving mechanism further comprises a lifting component, the material receiving box is mounted on a driving end of the lifting component, and can be lifted and lowered under the drive of the lifting component to approach or move away from the carrying platform.

5. The waste discharge device according to claim 4, characterized in that: The lifting assembly can drive the receiving box to rise until the upper edge of the receiving box is flush with the bearing surface of the bearing platform moved out from above the receiving box, and can drive the receiving box to fall down until the discharge port is docked with the waste box below the discharge port.

6. The waste discharge device according to claim 4, characterized in that: The lifting assembly includes a mounting seat and a lifting driving member accommodated in the mounting seat, and the material receiving box is slidably mounted on the side wall of the mounting seat along a direction perpendicular to the bearing surface of the bearing platform and is drivingly connected to the lifting driving member.

7. The waste discharge device according to claim 1, characterized in that: The material receiving box comprises a frame and two support plates rotatably mounted in the frame, the two support plates constitute the bottom of the material receiving box, and the two support plates can be opened or closed to open or close the material outlet.

8. The waste discharge device according to claim 7, characterized in that: The receiving box further comprises an opening and closing driving member, which is mounted on the frame and can drive the two supporting plates to rotate; Alternatively, the two support plates are supported by a damping element, and are brought together under the support of the damping element to keep the discharge port in a closed state.

9. The waste discharge device according to claim 1, characterized in that: The transfer assembly includes a base, a transfer guide rail installed on the base, and a transfer drive member. The waste box can be slidably installed on the transfer guide rail and is drivingly connected to the transfer drive member.

10. A cutting and stacking machine, characterized in that: It comprises at least two waste discharge devices as described in any one of claims 1 to 9, wherein one of the waste discharge devices is used to detect positive electrode sheets, and the other waste discharge device is used to detect negative electrode sheets.

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