Cutting device and lamination machine

Abstract

This utility model relates to a cutting device and a stacking machine. The driving component can drive the upper die to reciprocate relative to the lower die, thereby achieving slicing. The distance between the position of the upper die at the moment of mold closing and the position of the upper die at its lowest point relative to the lower die is the cutting depth. Based on the rotation angle of the drive motor and the parameters of the transmission structure, the relative height of the upper die at different positions can be calculated, thus obtaining the specific value of the cutting depth. Moreover, during the reciprocating movement of the upper die, it will alternately block and avoid the signal transmission path of the sensor, resulting in a periodic change in the signal strength received by the receiving end. Therefore, the position of the upper die relative to the lower die can be indicated based on the signal value received by the receiving end. It can be seen that by monitoring the rotation angle of the drive motor in real time and cooperating with the sensor, the cutting depth can be visualized.

Description

Technical Field

[0001] This utility model relates to the field of automation technology, and in particular to a cutting device and a stacking machine. Background Technology

[0002] Slicing is a common process in actual production, and the cutting depth directly affects the quality of the slices. For example, electrode cutting is an essential step in the stacking process; if the cutting depth cannot be maintained at a consistent standard, the quality of the resulting electrodes cannot be guaranteed. Currently, most slicing operations are completed using traditional molds. However, these molds require frequent disassembly and maintenance during production, leading to continuous changes in their cutting depth. Therefore, adjustments are needed to ensure consistency in the cutting depth. However, because the cutting depth of the mold is not readily apparent, adjustments are extremely inconvenient and prone to inaccurate results. Utility Model Content

[0003] Therefore, it is necessary to provide a cutting device and stacking machine that can visualize the cutting depth to address the above problems.

[0004] A cutting device includes a cutting mold, a driving assembly, and a sensor. The cutting mold includes a lower mold and an upper mold arranged opposite to each other. The driving assembly includes a driving motor and a transmission structure. The upper mold is connected to the driving motor through the transmission structure. The sensor includes a receiving end and a transmitting end, and the transmitting end and the receiving end are respectively arranged on opposite sides of the cutting mold.

[0005] In one embodiment, the cutting die further includes a guide shaft, to which the upper die is slidably mounted.

[0006] In one embodiment, a plurality of the guide shafts are arranged side by side, and the cutting die further includes a movable plate slidably mounted on the plurality of guide shafts, the upper die being mounted on the movable plate.

[0007] In one embodiment, the transmission structure includes an eccentric shaft and a connecting rod, the eccentric shaft being connected to the drive motor, and the two ends of the connecting rod being connected to the eccentric shaft and the upper mold, respectively.

[0008] In one embodiment, a support mechanism is also included, the support mechanism including a base and a bracket, the transmission structure further including a connecting plate slidably mounted on the bracket, and the end of the connecting rod away from the eccentric shaft is connected to the connecting plate, the lower mold is fixed to the base, and the upper mold is connected to the connecting plate.

[0009] In one embodiment, the drive motor includes a motor encoder.

[0010] In one embodiment, the sensor is configured as a through-beam fiber optic sensor.

[0011] In one embodiment, a dust-collecting plate is also included, which is disposed on at least one side of the cutting die.

[0012] In one embodiment, a limiting component is further included, the limiting component comprising a driving element and a limiting block, the limiting block being mounted on the driving end of the driving element.

[0013] A stacking machine includes a cutting device as described in any of the preferred embodiments above.

[0014] The aforementioned cutting device and stacking machine utilize a drive assembly that drives the upper die to reciprocate relative to the lower die, thereby achieving slicing. The distance between the position of the upper die at the instant the upper and lower dies are closed and the position of the upper die at its lowest point relative to the lower die is the cutting depth. Based on the rotation angle of the drive motor and the parameters of the transmission structure, the relative height of the upper die at different positions can be calculated, thus obtaining the specific value of the cutting depth. Furthermore, during the reciprocating movement of the upper die, it alternately obstructs and avoids the signal transmission path of the sensor, causing the signal strength received by the receiver to change periodically. Therefore, the position of the upper die relative to the lower die can be indicated based on the signal value received by the receiver. It is evident that by real-time monitoring of the rotation angle of the drive motor in conjunction with a sensor, the cutting depth can be visualized. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a front view of the cutting device in one embodiment of the present invention;

[0017] Figure 2 for Figure 1 Top view of the cutting device shown;

[0018] Figure 3 for Figure 1 An enlarged schematic diagram of part A in the cutting device shown;

[0019] Figure 4 for Figure 1 The cutting device shown is a cross-sectional view along BB;

[0020] Figure 5 for Figure 4An enlarged schematic diagram of part C in the cutting device shown;

[0021] Figure 6 for Figure 1 A simplified schematic diagram of the state changes of the transmission structure in the cutting device shown. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] In the description of this utility model, 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., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] Please see Figure 1 The present invention provides a cutting device 100. Furthermore, the present invention also provides a stacking machine (not shown), which includes the aforementioned cutting device 100.

[0029] The cutting device 100 can cut electrode strips to obtain electrodes. A stacking machine generally also includes a stacking table and a stacking robot, which can stack the cut electrodes sequentially on the stacking table to produce a battery cell. Of course, the cutting device 100 can also be applied to other fields to slice other materials.

[0030] Please refer to the following: Figure 2 and Figure 3 In one embodiment of the present invention, the cutting device 100 includes a support mechanism 110, a cutting mold 120, a drive assembly 130, and a sensor 140.

[0031] The support mechanism 110 provides support, and the cutting die 120, drive assembly 130, and sensor 140 are all mounted on the support mechanism 110. Specifically, the support mechanism 110 includes a base 112 and a bracket 111, with the bracket 111 located above the base 112. The drive assembly 130 is mounted on the bracket 111, while the sensor 140 can be mounted on the base 112. The cutting die 120 includes a lower die 121 and an upper die 122 arranged opposite to each other, with the lower die 121 mounted on the base 112 of the support mechanism 110 and the upper die 122 mounted on the bracket 111 of the support mechanism 110. The drive assembly 130 includes a drive motor 131 and a transmission structure 132, with the upper die 122 connected to the drive motor 131 via the transmission structure 132. Therefore, the drive motor 131 can drive the upper die 122 to reciprocate relative to the lower die 121 via the transmission structure 132, thereby enabling the cutting die 120 to perform a cutting operation.

[0032] The transmission structure 132 converts the rotational motion of the drive motor 131 into the reciprocating linear motion of the upper die 122, thereby enabling the cutting die 120 to perform continuous cutting operations. When the lower die 121 and the upper die 122 separate, the electrode strip to be cut can pass between the lower die 121 and the upper die 122. After the upper die 122 and the lower die 121 close, the electrode strip of the required shape can be cut. Specifically, under the drive of the drive assembly 130, the upper die 122 can cycle between the initial state, the closing critical state, the cutting state, the separation critical state, and the initial state relative to the lower die 121.

[0033] In the initial state, the upper mold 122 is at its highest point relative to the lower mold 121; the critical state of mold closing is the instant when the upper mold 122 and the lower mold 121 close; the cutting state is the lowest point where the upper mold 122 moves relative to the lower mold 121; the critical state of separation is the instant when the upper mold 122 and the lower mold 121 separate. The distance the upper mold 122 moves from the critical state of mold closing to the cutting state is the cutting depth of the cutting device 100.

[0034] Please refer to the following: Figure 4 and Figure 6 In this embodiment, the transmission structure 132 includes an eccentric shaft 1321 and a connecting rod 1322. The eccentric shaft 1321 is connected to the drive motor 131, and the two ends of the connecting rod 1322 are respectively connected to the eccentric shaft 1321 and the upper mold 122.

[0035] The eccentric shaft 1321 can be indirectly connected to the shaft of the drive motor 131 via a coupling, reducer, or other means, or it can be directly connected to the shaft of the drive motor 131. The end of the connecting rod 1322 furthest from the eccentric shaft 1321 can be directly connected to the upper mold 122, or it can be indirectly connected to the upper mold 122 via a slider or other structure. The drive motor 131 can drive the eccentric shaft 1321 to rotate, and the eccentric shaft 1321 will drive the connecting rod 1322 to swing, thereby causing the upper mold 122 to move linearly back and forth.

[0036] The transmission structure achieved by the eccentric shaft 1321 and connecting rod 1322 is simple and highly reliable. It should be noted that in other embodiments, the transmission structure 132 can also adopt other methods, such as the use of a cam and a cam follower to convert the rotational motion of the drive motor 131 into reciprocating linear motion.

[0037] Furthermore, in this embodiment, the transmission structure 132 also includes a connecting plate 1323 slidably mounted on the bracket 111, and one end of the connecting rod 1322 away from the eccentric shaft 1321 is connected to the connecting plate 1323. The upper mold 122 is connected to the connecting plate 1323, while the lower mold 121 is fixed to the base 112 of the support mechanism 110.

[0038] Specifically, a guide rail is provided on the bracket 111, and the connecting plate 1323 can be mounted on the guide rail via a slider. During the transmission process, the connecting rod 1322 first drives the connecting plate 1323 to reciprocate linearly along the support mechanism 110, and then the connecting plate 1323 drives the upper mold 122 to reciprocate linearly relative to the lower mold 121. In this way, the length of the connecting rod 1322 can be significantly shortened, which helps to maintain high rigidity. Moreover, the connecting plate 1323 has high stability during movement, thus also improving the stability of the upper mold 122 during movement.

[0039] In addition, in this embodiment, the cutting die 120 also includes a guide shaft 123, and the upper die 122 is slidably mounted on the guide shaft 123.

[0040] Specifically, the two ends of the guide shaft 123 can be fixed to the base 112 and the bracket 111 respectively, and the upper mold 122 can be installed with the guide shaft 123 through a linear bearing. The guide shaft 123 can limit and guide the upper mold 122, so as to further improve the stability of the upper mold 122 during movement.

[0041] Furthermore, in this embodiment, multiple guide shafts 123 are arranged side by side, and the cutting die 120 also includes a movable plate 124 visibly slidably mounted on the multiple guide shafts 123, with the upper die 122 mounted on the movable plate 124. The movable plate 124 and each guide shaft 123 can be mounted via linear bearings.

[0042] Please refer to the following: Figure 5 The sensor 140 includes a receiver 141 and a transmitter 142, with the transmitter 142 and receiver 141 respectively disposed on opposite sides of the cutting mold 120. The transmitter 142 can emit signals, and the receiver 141 can receive signals. Furthermore, the cutting mold 120 is disposed on the transmission path of the sensor 140. Specifically, the receiver 141 and transmitter 142 are respectively disposed in the width direction of the cutting mold 120 (i.e.,...). Figure 1 The transmission path is shorter and less susceptible to external interference, as shown on both sides of the plane perpendicular to the drawing.

[0043] When the upper mold 122 is in its initial state, the cutting mold 120 does not obstruct the transmission path, so the receiving end 141 can receive the signal. However, when the upper mold 122 moves to the mold closing critical state, the transmission path is completely blocked, so the receiving end 141 receives the weakest signal, or even zero. When the upper mold 122 moves to the separation critical state, the signal strength received by the receiving end 141 will gradually increase. It can be seen that during the reciprocating movement of the upper mold 122, the signal strength received by the receiving end 141 also changes periodically. Therefore, the position of the upper mold 122 relative to the lower mold 121 can be indicated based on the signal value received by the receiving end 141.

[0044] As analyzed above, the distance the upper mold 122 travels from the mold-closing critical state to the cutting state is the cutting depth of the cutting device 100. Therefore, by monitoring the rotation angle of the drive motor 131 in real time and using the sensor 140, the cutting depth can be visualized. The specific analysis is as follows:

[0045] When the signal received by receiver 141 is at its minimum value, it indicates that the upper mold 122 has moved to the initial mold-closing state, and the operating position of drive motor 131 at this time is recorded as the first position. When the signal received by receiver 141 gradually increases, it indicates that the upper mold 122 has moved to the critical separation position, and the operating position of drive motor 131 at this time is recorded as the second position. It can be understood that when drive motor 131 moves to the third position, which is between the first and second positions, the upper mold 122 has just moved to its lowest point relative to the lower mold 121, i.e., the cutting position. Based on the angle change of drive motor 131 from the first position to the second position, the angle change of drive motor 131 from the first position to the third position can be obtained. Based on the above angle change and parameters such as the transmission ratio of transmission structure 132, the distance from the critical mold-closing state to the cutting state, i.e., the cutting depth, can be obtained.

[0046] Please refer to it again. Figure 6 The following is a further analysis of the implementation scheme of the transmission structure 132, which includes the eccentric shaft 1321 and the connecting rod 1322:

[0047] The eccentric shaft 1321 rotates counterclockwise under the drive of the drive motor 131. When the transmission structure 132 is in... Figure 6 When in the state shown in (a), the upper mold 122 is moved relative to the lower mold 121 to the critical state of mold closing; while when the transmission structure 132 is in Figure 6 In the state shown in (b), the upper mold 122 will reach its lowest point relative to the lower mold 121, i.e., the cut-off state. During this process, the rotation angle of the eccentric shaft 1321 is denoted as θ, which can be obtained by recording the rotation angle of the drive motor 131.

[0048] Transmission structure 132 is in Figure 6 In the state shown in (b), the distance from the end of the connecting rod 1322 to the center of motion o of the eccentric shaft 1321 is (R+L); while the transmission structure 132 is in the state shown in (b). Figure 6 In the state shown in (a), the distance from the end of the connecting rod 1322 to the center of motion o of the eccentric shaft 1321 is (R*cos(θ)+L*sqrt(1-R^2*sin(θ)^2 / L^2)). Subtracting the two gives the depth of cut H. Therefore, the depth of cut H = (R+L)-(R*cos(θ)+L*sqrt(1-R^2*sin(θ)^2 / L^2)), where R is the eccentricity of the eccentric shaft 1321 and L is the length of the connecting rod 1322.

[0049] Specifically, in this embodiment, the drive motor 131 includes a motor encoder (not shown). The motor encoder can record the rotation angle of the drive motor 131 in real time, thereby helping to quickly obtain the cutting depth.

[0050] Specifically, in this embodiment, the sensor 140 is configured as a through-beam fiber optic sensor 140. The through-beam fiber optic sensor 140 has advantages such as high sensitivity, high accuracy, and strong adaptability, which can ensure the accuracy of the obtained cutting depth.

[0051] Please refer to it again. Figure 5 In this embodiment, the cutting device 100 further includes a dust-collecting plate 150, which is disposed on at least one side of the cutting mold 120. The surface of the dust-collecting plate 150 may have dust-removing holes, and an air passage is formed inside the dust-removing plate 150, which can communicate with an external dust-collecting device. During the cutting operation, the dust-collecting plate 150 can quickly remove the dust generated during cutting, thereby helping to improve the quality of the slices.

[0052] In addition, please refer to again Figure 4 In this embodiment, the cutting device 100 further includes a limiting component 160, which includes a driving member 161 and a limiting block 162. The limiting block 162 is installed on the driving end of the driving member 161.

[0053] The driving component 161 can be a cylinder. When the cutting device 100 is operating normally, the driving component 161 drives the limiting block 162 to create a clearance between the upper mold 122 and the lower mold 121, allowing the upper mold 122 to move smoothly back and forth relative to the lower mold 121. During maintenance or other operations, the driving component 161 can move the limiting block 162 onto the movement path of the upper mold 122, thereby preventing accidental mold closing between the upper mold 122 and the lower mold 121, ensuring safety.

[0054] The aforementioned cutting device 100 and stacking machine, with drive assembly 130, can drive the upper mold 122 to reciprocate relative to the lower mold 121, thereby achieving slicing. The distance between the position of the upper mold 122 at the moment of mold closing and the position of the upper mold 122 relative to the lowest point of the lower mold 121 is the cutting depth. Based on the rotation angle of the drive motor 131 and the parameters of the transmission structure 132, the relative height of the upper mold 122 at different positions can be calculated, thus obtaining the specific value of the cutting depth. Moreover, during the reciprocating movement of the upper mold 122, it will alternately block and avoid the signal transmission path of the sensor 140, resulting in a periodic change in the signal strength received by the receiving end 141. Therefore, the position of the upper mold 122 relative to the lower mold 121 can be indicated based on the signal value received by the receiving end 141. It can be seen that by real-time monitoring of the rotation angle of the drive motor 131 in conjunction with the sensor 140, the cutting depth can be visualized.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A cutting device, characterized in that, The device includes a cutting mold, a drive assembly, and a sensor. The cutting mold includes a lower mold and an upper mold arranged opposite to each other. The drive assembly includes a drive motor and a transmission structure. The upper mold is connected to the drive motor through the transmission structure. The sensor includes a receiver and a transmitter, and the transmitter and the receiver are respectively arranged on opposite sides of the cutting mold.

2. The cutting device according to claim 1, characterized in that, The cutting die also includes a guide shaft, and the upper die is slidably mounted on the guide shaft.

3. The cutting device according to claim 2, characterized in that, The plurality of guide shafts are arranged in parallel, and the cutting die further includes a movable plate slidably mounted on the plurality of guide shafts, and the upper die is mounted on the movable plate.

4. The cutting device according to claim 1, characterized in that, The transmission structure includes an eccentric shaft and a connecting rod. The eccentric shaft is connected to the drive motor, and the two ends of the connecting rod are respectively connected to the eccentric shaft and the upper mold.

5. The cutting device according to claim 4, characterized in that, It also includes a support mechanism, which includes a base and a bracket. The transmission structure also includes a connecting plate that is slidably mounted on the bracket, and the end of the connecting rod away from the eccentric shaft is connected to the connecting plate. The lower mold is fixed to the base, and the upper mold is connected to the connecting plate.

6. The cutting device according to claim 1, characterized in that, The drive motor includes a motor encoder.

7. The cutting device according to claim 1, characterized in that, The sensor is configured as a through-beam fiber optic sensor.

8. The cutting device according to claim 1, characterized in that, It also includes a dust-collecting plate disposed on at least one side of the cutting die.

9. The cutting device according to claim 1, characterized in that, It also includes a limiting component, which includes a driving element and a limiting block, wherein the limiting block is installed on the driving end of the driving element.

10. A stacking machine, characterized in that, Includes the cutting device as described in any one of claims 1 to 9 above.

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