A die-cutting mechanism and a pole piece die-cutting machine with the die-cutting mechanism

Abstract

The present invention discloses a die-cutting mechanism and a pole piece die-cutting machine with the die-cutting mechanism, belonging to the technical field of pole piece die-cutting. It includes an overall assembly plate, a mold, a driving device, a lifting device, and a moving device; the mold includes an upper mold and a lower mold, and the lower mold is provided with a receiving groove; the driving device is used to drive the longitudinal movement of the upper mold; the moving device includes a moving component, a transporting component, and a moving bottom plate; the lifting device is used to adjust the height of the moving device; one end of the transporting component is slidably connected to the moving bottom plate, and the other end is suspended. The moving component drives the transporting component to slide on the moving bottom plate and drives the suspended end of the transporting component to extend into or out of the receiving groove; the technical problem solved is that the existing die-cutting mechanism using the mechanical hand grasping method has too many steps, which does not match the current pole piece unwinding and die-cutting speeds, affecting the overall pole piece production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of pole piece die cutting, and particularly to a die cutting mechanism and a pole piece die cutting machine with the die cutting mechanism. Background Art

[0002] Currently, a pole piece die cutting machine generally includes an unwinding mechanism and a die cutting mechanism. The unwinding mechanism feeds the pole piece to the die cutting mechanism at a certain speed for die cutting work.

[0003] The existing die cutting mechanism usually adopts the following method: the pole piece is transported from the unwinding mechanism to the die of the die cutting mechanism for die cutting work. After die cutting, the pole piece is grabbed by a manipulator and moved to a conveyor belt or the next process, and the die cutting work is carried out in this cycle.

[0004] However, the above technical solution has the following problems: the manipulator needs to adjust its height to the die, extend into the die to grab the die-cut pole piece, move the pole piece out to the conveyor belt, and repeat this process to complete the material taking process of the pole piece. The method of manipulator grabbing has too many steps, which does not match the current pole piece unwinding and die cutting speeds, affecting the overall production efficiency of the pole piece, so it needs to be improved. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a die cutting mechanism and a pole piece die cutting machine with the die cutting mechanism to solve the above technical problems.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows:

[0007] A die cutting mechanism includes an overall assembly plate, a die, a driving device, a lifting device and a moving device; the die includes an upper die and a lower die, and the lower die is provided with a receiving groove; the driving device is used to drive the longitudinal movement of the upper die; the moving device includes a moving component, a transporting component and a moving bottom plate; the lifting device is used to adjust the height of the moving device; one end of the transporting component is slidably connected to the moving bottom plate, and the other end is suspended. The moving component drives the transporting component to slide on the moving bottom plate and drives the suspended end of the transporting component to extend into or out of the receiving groove.

[0008] By adopting the above technical solution, the staff use the lifting device to adjust the height of the moving device so that the height of the transportation component in the moving device is equal to or lower than the height of the lower die, that is, the suspended end of the transportation component is completely accommodated in the accommodation groove, so that the suspended end of the transportation component will not affect the closing movement of the upper die and the lower die; after the height adjustment work is completed, the moving device and the driving device are started, the pole piece is sent to the die by the unwinding mechanism and die-cut by the die, the upper die is lifted, the die-cut pole piece falls to the suspended end of the transportation component, the belt of the transportation component rotates, after moving out the body position of one pole piece, the die performs die-cutting work again, the second pole piece falls to the transportation component, and the cycle continues until four to five pole pieces are die-cut (this is determined by the length of the transportation component, the longer the transportation component, the more pole pieces can be accommodated at one time), the moving component drives the transportation device along the moving bottom plate to the next process (such as the grinding mechanism or the material receiving mechanism), and then drives the transportation component to extend into the accommodation groove of the die again for the next cycle;

[0009] In the present invention, the cooperation relationship among the die, the transportation component and the moving component is adopted to optimize the overall material taking process as a whole. Compared with the material taking process of the manipulator type, the time required for the material taking link is greatly reduced, which matches the efficiency of the unwinding mechanism and the die;

[0010] Moreover, compared with another solution: directly fixing the transportation component and the die, and keeping the suspended end of the transportation component always inside the die. This solution necessarily requires a longer transportation component to reach the next process. The lengthening of the transportation component will indirectly increase the overall equipment space and the required supporting force. However, the present invention can adopt a shorter transportation component, with one end of the transportation component moving along with the transportation plate and the other end suspended and extending into or out of the die, achieving the same technical effect as the above technical solution, and reducing the overall equipment occupied space and the required supporting force. In addition, the present invention can also solve the problem that the excessive height of the transportation component affects the die-cutting work of the die through the lifting device.

[0011] Preferably, the transportation component includes a transportation plate slidably connected to the moving bottom plate, a suction plate arranged on the transportation plate, a first driven wheel and a second driven wheel respectively rotatably connected to both ends of the suction plate, and a belt in transmission cooperation with the first driven wheel and the second driven wheel; the transportation plate is provided with a pair of first fixing blocks and a pair of second fixing blocks, one end of the suction plate is fixed to the transportation plate in a two-point manner through the first fixing block and the second fixing block, and the other end of the suction plate is suspended.

[0012] By adopting the above technical solution, after the pole piece is die-cut, it falls onto the belt. The belt conveys the die-cut pole piece and reserves the position of one pole piece for the next die-cutting and material collection. It circulates in turn until the belt is covered with pole pieces, and then it can be sent to the next process through the moving component; since one end of the suction plate is a suspended end, to ensure the stable installation of the suction plate, the present invention uses the first fixing block and the second fixing block to fix the end of the suction plate at the same time, making the suspended end of the transportation component more stable during the movement and material collection process.

[0013] Preferably, negative pressure exhaust holes are formed on the side surface of the suction plate, and a plurality of long strip-shaped negative pressure grooves are formed on the suction plate. A plurality of negative pressure through holes are formed at each negative pressure groove and on the surface of the belt, and the negative pressure exhaust holes are communicated with the negative pressure through holes;

[0014] A plurality of annular grooves corresponding to the negative pressure grooves one by one are formed on the driven wheel one along its axial direction, and the negative pressure grooves extend into the annular grooves;

[0015] The first fixing block is rotatably connected with a driving wheel. One end of the driving wheel passes through one of the first fixing blocks and is connected with a transmission motor, and the driving wheel is in transmission cooperation with the belt.

[0016] By adopting the above technical solution, the negative pressure exhaust holes can be communicated with an air extractor, and the air extractor is used to generate negative pressure at the negative pressure through holes. Thus, after the pole piece is die-cut, it can be adsorbed on the belt;

[0017] The negative pressure grooves correspond to the negative pressure through holes on the negative pressure belt. If only the negative pressure through holes are formed, after the belt rotates, the negative pressure through holes on the belt will not correspond to the negative pressure through holes on the transportation plate, resulting in the pole piece slipping on the belt or not being able to transport the pole piece at all. By forming the negative pressure grooves, the corresponding negative pressure through holes on the belt will always be in a negative pressure state, and there will be no place without negative pressure, so that the belt always has an adsorption force on the pole piece;

[0018] The number and position of the annular grooves are the same as those of the negative pressure grooves. The suction plate extends into the annular grooves, so that the negative pressure grooves can also extend into the annular grooves, increasing the overall negative pressure adsorption area of the transportation component. When the pole piece falls on the edge of the belt, the effective adsorption area is larger, increasing the stability of the pole piece after blanking and reducing the influence on the position of the uncut pole piece.

[0019] Preferably, a through groove is formed on the moving bottom plate. The moving component includes a mounting block fixed on the lower surface of the moving bottom plate, a moving lead screw rotatably connected with the mounting block, a moving motor fixed below the moving bottom plate and used for driving the moving lead screw, and a matching block. One end of the matching block is fixedly connected with the transportation component, and the other end is threadedly connected with the moving lead screw.

[0020] By adopting the above technical solution, a common screw motor type moving structure is provided; since space is usually required above the moving base plate for the movement of the transportation component and the installation of the next process, the present invention opens a through groove in the moving base plate to connect the upper and lower parts of the moving base plate, so that the moving component can be installed below the moving base plate, effectively utilizing the space.

[0021] Preferably, the moving base plate is provided with a first adjustment slide rail and a second adjustment slide rail whose length directions are the same as the moving direction of the transportation component. The first adjustment slide rail is slidably fitted with a first sensor, and the second adjustment slide rail is slidably fitted with a second sensor.

[0022] By adopting the above technical solution, the first sensor and the second sensor serve as safety switches, which can prevent the moving screw rod from exceeding the stroke and avoid collision with the mold;

[0023] The first adjustment slide rail and the second adjustment slide rail can be used to respectively adjust the positions of the first sensor and the second sensor, facilitating the staff to correspondingly adjust the positions of the two sensors according to the actual positions of the mold and the moving device.

[0024] Preferably, the driving device includes an installation frame, a downward pressing component longitudinally slidably connected to the installation frame and used for driving the upper mold and the lower mold to close, a driving motor arranged on the installation frame, a crankshaft driven by the driving motor, a vertical connecting piece rotatably connected to the crankshaft, and a transverse connecting piece. One end of the transverse connecting piece is rotatably connected to the vertical connecting piece, and the other end is connected to the downward pressing component.

[0025] By adopting the above technical solution, the driving motor drives the crankshaft to rotate, and drives the downward pressing component to make a vertical displacement movement on the installation frame through the vertical connecting piece and the transverse connecting piece, so that the downward pressing component drives the upper mold to move up and down, realizing the rapid opening and closing process with the lower mold;

[0026] Adopting this driving method can enable the normal speed of upper and lower mold closing to reach 200 - 280 cycles per minute. Converting it to the existing cylinder driving method at 200 cycles per minute, that is, 400 strokes need to be completed per minute. Under normal circumstances, the cylinder can only complete 200 strokes per minute. Therefore, the solution provided by the present invention can greatly improve the mold closing speed of the upper mold and the lower mold, and is applicable to die-cutting equipment with high requirements for the production speed of the pole piece.

[0027] Preferably, the installation frame includes an installation rack and a support seat. The installation rack is provided with an adjustment groove, and the support seat is slidably fitted with the adjustment groove;

[0028] The installation rack is provided with an adjustment screw rod, a rotating seat, and an adjustment hand wheel with a handle. One end of the adjustment screw rod is threadedly connected to the support seat, and the other end is rotatably connected to the rotating seat. The adjustment hand wheel is used to drive the adjustment screw rod to rotate.

[0029] By adopting the above technical solution, after the mold and the mounting frame are both installed, the positions of the two components are usually not easily changed. When the connection position between the pressing component and the upper mold is offset from the central position of the upper mold after installation, the position of the mold connection point is adjusted to avoid generating additional torque and extend the service life of the mold.

[0030] Preferably, the mounting frame is provided with a longitudinal slide rail. The pressing component includes a moving plate slidably matched with the longitudinal slide rail, a connecting block connected to the upper mold, and a joint connecting piece with two ends respectively connected to the moving plate and the connecting block.

[0031] The connecting block is provided with a chute, and the lower end of the joint connecting piece is provided with a slider located in the chute.

[0032] By adopting the above technical solution, the longitudinal slide rail provides a sliding mode for the moving plate on the one hand and can limit the moving plate to only slide longitudinally on the other hand. The connecting block and the joint connecting piece are used to connect the moving plate and the upper mold.

[0033] The connection position between the connecting block and the upper mold can be adjusted by the slider being in different positions in the chute, and the position where the slider can be located can also be changed by rotating the orientation of the connecting block.

[0034] Preferably, the lifting device includes a lifting opening formed in the general assembly plate for the movable bottom plate to move, a fixing plate installed below the general assembly plate through a plurality of connecting columns, a lifting plate installed below the movable bottom plate through a plurality of guide rods, and a longitudinally arranged lifting lead screw. The lifting lead screw is rotatably connected to the fixing plate and is in threaded connection with the lifting plate.

[0035] By adopting the above technical solution, when the staff finds that the height of the transportation component needs to be adjusted, the lifting lead screw can be rotated. The lifting lead screw rotates relative to the fixing plate, and the lifting plate can only move up and down under the restriction of the guide rods. Thus, the rotation of the lifting lead screw drives the lifting plate to move up and down, thereby driving the movable bottom plate to move up and down, achieving the effect of adjusting the height of the transportation component.

[0036] A pole piece die-cutting machine includes an unwinding mechanism and also includes the die-cutting mechanism described in any one of the above technical solutions.

[0037] By adopting the above technical solution, the pole piece die-cutting machine adopting the die-cutting mechanism provided by the present invention can match the working efficiency of the unwinding mechanism, the grinding mechanism and the winding mechanism, thereby improving the overall pole piece production efficiency.

[0038] The beneficial effects of the present invention are:

[0039] 1. By using the cooperation relationship among the mold, the transportation component, and the moving component, the overall material taking process is optimized integrally. Compared with the material taking process of the manipulator type, the time required for the material taking link is significantly reduced, which matches the efficiency of the unwinding mechanism and the mold.

[0040] 2. The first fixing block and the second fixing block are used to fix the end of the suction plate simultaneously, making the suspended end of the transportation component more stable during the movement and material collection processes.

[0041] 3. The number and position of the annular grooves are the same as those of the negative pressure grooves. The suction plate extends into the annular grooves, so that the negative pressure grooves can also extend into the annular grooves, increasing the overall negative pressure adsorption area of the transportation component. When the pole piece falls on the edge of the belt, there is a larger effective adsorption area, increasing the stability of the pole piece after blanking and reducing the influence on the position of the uncut pole piece.

[0042] 4. By using the driving device provided by the present invention, the normal speed of the upper and lower mold clamping can reach 200 - 280 cycles per minute. Converting it to the existing cylinder driving method at 200 cycles per minute, that is, 400 strokes need to be completed per minute. Under normal circumstances, the cylinder can only complete 200 strokes per minute. Therefore, the solution provided by the present invention can significantly improve the mold clamping speed of the upper mold and the lower mold, and is applicable to the die-cutting equipment with high requirements for the production speed of the pole piece.

[0043] 5. The pole piece die-cutting machine adopting the die-cutting mechanism provided by the present invention can match the working efficiency of the unwinding mechanism, the grinding mechanism, and the material collection mechanism, thereby improving the overall pole piece output efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The present invention will be further described below in conjunction with the drawings and embodiments.

[0045] Figure 1 is the structural schematic diagram of the present invention;

[0046] Figure 2 is the structural schematic diagram of the mold and the driving device in the present invention;

[0047] Figure 3 is the partial three-dimensional sectional view of the driving device in the present invention;

[0048] Figure 4 is the front view of the present invention;

[0049] Figure 5 is the structural schematic diagram of the moving bottom plate and the lifting device after hiding the general assembly plate in the present invention;

[0050] Figure 6 is the structural schematic diagram of the moving bottom plate and the moving component in the present invention;

[0051] Figure 7For Figure 1 Partial enlarged view at position A in

[0052] Figure 8 Schematic structural view of the transportation component in the present invention after hiding the belt;

[0053] Figure 9 For Figure 8 Schematic structural view at position B in

[0054] The descriptions of the reference numerals in the figures are as follows:

[0055] 1. General assembly plate;

[0056] 2. Mold; 201. Upper mold; 202. Lower mold; 203. Accommodating groove;

[0057] 3. Driving device; 301. Installation frame; 302. Pressing-down component; 303. Driving motor; 304. Crankshaft; 305. Vertical connecting piece; 306. Horizontal connecting piece; 307. Installation bracket; 308. Support seat; 309. Adjusting groove; 310. Adjusting screw rod; 311. Rotating seat; 312. Adjusting handwheel; 313. Longitudinal sliding rail; 314. Moving plate; 315. Connecting block; 316. Joint connecting piece; 317. Chute; 318. Slide block;

[0058] 4. Lifting device; 401. Lifting opening; 402. Connecting column; 403. Fixed plate; 404. Guide rod; 405. Lifting plate; 406. Lifting screw rod; 407. Connecting strip; 408. Lifting handwheel; 409. Bearing plate; 410. Sliding bearing;

[0059] 5. Moving component; 501. Installation block; 502. Moving screw rod; 503. Moving motor; 504. Fitting block; 505. Adjusting sliding rail I; 506. Adjusting sliding rail II; 507. First sensor; 508. Second sensor;

[0060] 6. Transportation component; 601. Transportation plate; 602. Suction plate; 603. First driven wheel; 604. Second driven wheel; 605. Belt; 606. First fixing block; 607. Second fixing block; 608. Driving wheel; 609. Transmission motor; 610. Negative pressure exhaust hole; 611. Negative pressure groove; 612. Negative pressure through hole; 613. Annular groove;

[0061] 7. Moving bottom plate; 701. Through groove;

[0062] 8. Pole piece. Detailed implementation manners

[0063] The concept, specific structure, and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments and the accompanying drawings to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present invention. In addition, all connection / linkage relationships involved in the patent do not simply refer to direct connection of components, but refer to the formation of a more optimal connection structure by adding or reducing connection accessories according to specific implementation situations. The various technical features in the present invention can be interactively combined without conflicting with each other.

[0064] A die-cutting mechanism, as Figure 1 shown, includes an assembly plate 1, a die 2, a driving device 3, a lifting device 4, and a moving device; the die 2 includes an upper die 201 and a lower die 202, and the lower die 202 is provided with a receiving groove 203; the driving device 3 is used to drive the longitudinal movement of the upper die 201; the moving device includes a moving component 5 (see Figure 6 ), a conveying component 6, and a moving bottom plate 7; the lifting device 4 is used to adjust the height of the moving device; one end of the conveying component 6 is slidably connected to the moving bottom plate 7, and the other end is suspended. The moving component 5 drives the conveying component 6 to slide on the moving bottom plate 7 and brings the suspended end of the conveying component 6 into or out of the receiving groove 203.

[0065] Specific working principle: The staff uses the lifting device 4 to adjust the height of the moving device so that the height of the conveying component 6 in the moving device is equal to or lower than the height of the lower die 202, that is, the suspended end of the conveying component 6 is completely received in the receiving groove 203, so that the suspended end of the conveying component 6 does not affect the closing movement of the upper die 201 and the lower die 202; after the height adjustment work is completed, the moving device and the driving device 3 are started. The pole piece 8 is sent to the die 2 by the unwinding mechanism and die-cut by the die 2. The upper die 201 is lifted, and the die-cut pole piece 8 falls onto the suspended end of the conveying component 6. The belt 605 of the conveying component 6 rotates. After moving out the position of one pole piece 8, the die 2 performs die-cutting work again. The second pole piece 8 falls onto the conveying component 6, and this process is cycled in turn until four to five pole pieces 8 are die-cut (this is determined by the length of the conveying component 6. The longer the length of the conveying component 6, the more pole pieces 8 can be accommodated at one time). The moving component 5 drives the conveying device along the moving bottom plate 7 to the next process (such as a grinding mechanism or a material receiving mechanism), and then drives the conveying component 6 to extend into the receiving groove 203 of the die 2 again for the next cycle.

[0066] In the present invention, the cooperation relationship among the mold 2, the transportation component 6, and the moving component 5 is adopted to optimize the overall material taking process integrally. Compared with the material taking process by a manipulator, the time required for the material taking link is greatly reduced, which matches the efficiency of the unwinding mechanism and the mold 2.

[0067] Moreover, compared with another solution: directly fixing the transportation component 6 and the mold 2, and making the suspended end of the transportation component 6 always located inside the mold 2. This solution necessarily requires a longer transportation component 6 to reach the next process. The lengthening of the transportation component 6 will indirectly increase the overall equipment space and the required supporting force. However, in the present invention, a shorter transportation component 6 can be adopted, with one end of the transportation component 6 moving along with the transportation plate 601 and the other end suspended and extending into or withdrawn from the mold 2, achieving the same technical effect as the above technical solution, and reducing the overall equipment occupied space and the required supporting force. In addition, the present invention can also solve the problem that the excessive height of the transportation component 6 affects the die cutting work of the mold 2 through the lifting device 4.

[0068] To better understand the present invention, the driving device 3, the lifting device 4, and the moving device will be elaborated in detail below.

[0069] I. Driving device 3

[0070] As shown in Figure 2 and Figure 3 , the driving device 3 includes an installation frame 301, a downward pressing component 302 longitudinally slidably connected to the installation frame 301 and used to drive the upper die 201 and the lower die 202 to close, a driving motor 303 arranged on the installation frame 301, a crankshaft 304 driven by the driving motor 303, a vertical connecting piece 305 rotatably connected to the crankshaft 304, and a horizontal connecting piece 306. One end of the horizontal connecting piece 306 is rotatably connected to the vertical connecting piece 305, and the other end is connected to the downward pressing component 302.

[0071] Specific working principle: The driving motor 303 drives the crankshaft 304 to rotate, drives the downward pressing component 302 to make a vertical displacement movement on the installation frame 301 through the vertical connecting piece 305 and the horizontal connecting piece 306, so that the downward pressing component 302 drives the upper die 201 to make a vertical movement, and realizes the rapid opening and closing process with the lower die 202.

[0072] Adopting this driving method can make the normal speed of upper and lower mold closing reach 200 - 280 cycles per minute. Converting it to the existing cylinder driving method at 200 cycles per minute, that is, 400 strokes need to be completed per minute. Under normal circumstances, the cylinder can only complete 200 strokes per minute. Therefore, the solution provided by the present invention can greatly improve the mold closing speed of the upper die 201 and the lower die 202, and is applicable to die cutting equipment with high requirements for the production speed of the pole piece 8.

[0073] To solve the problem that after the driving device 3 is installed, its connection position with the mold 2 cannot be adjusted according to the actual situation, the present invention is further arranged as follows.

[0074] The installation frame 301 includes an installation rack 307 and a support base 308. The installation rack 307 is provided with an adjustment groove 309, and the support base 308 is slidably engaged with the adjustment groove 309; the installation rack 307 is provided with an adjustment screw rod 310, a rotating seat 311 and an adjustment handwheel 312 with a handle. One end of the adjustment screw rod 310 is threadedly connected to the support base 308, and the other end is rotatably connected to the rotating seat 311. The adjustment handwheel 312 is used to drive the adjustment screw rod 310 to rotate.

[0075] After the mold 2 and the installation frame 301 are both installed, the positions of the two components are usually not easily changed. When the connection position of the pressing component 302 with the upper mold 201 is offset from the central position of the upper mold 201 after installation, the position of the connection point of the mold 2 is adjusted to avoid generating additional torque and extend the service life of the mold 2.

[0076] Further, the installation frame 301 is provided with a longitudinal slide rail 313. The pressing component 302 includes a moving plate 314 slidably engaged with the longitudinal slide rail 313, a connecting block 315 connected to the upper mold 201, and a joint connecting piece 316 with two ends respectively connected to the moving plate 314 and the connecting block 315; the connecting block 315 is provided with a chute 317, and the lower end of the joint connecting piece 316 is provided with a slider 318 located in the chute 317.

[0077] The longitudinal slide rail 313 provides a sliding mode for the moving plate 314 on the one hand, and can limit the moving plate 314 to only slide longitudinally on the other hand. The connecting block 315 and the joint connecting piece 316 are used to connect the moving plate 314 and the upper mold 201; by the slider 318 being in different positions within the chute 317, the connection position between the connecting block 315 and the upper mold 201 can be adjusted, and by rotating the orientation of the connecting block 315, the positions where the slider 318 can be located can also be changed.

[0078] II. Lifting device 4

[0079] As Figure 4 and Figure 5 shown, the lifting device 4 includes a lifting opening 401 opened on the general assembly plate 1 for the movable bottom plate 7 to move, a fixing plate 403 installed below the general assembly plate 1 through a plurality of connecting columns 402, a lifting plate 405 installed below the movable bottom plate 7 through a plurality of guide rods 404, and a longitudinally arranged lifting screw rod 406. The lifting screw rod 406 is rotatably connected to the fixing plate 403 and threadedly connected to the lifting plate 405.

[0080] Specific working principle: When the staff finds that the height of the transportation component 6 needs to be adjusted, the lifting screw rod 406 can be rotated. The lifting screw rod 406 rotates relative to the fixed plate 403. The lifting plate 405 can only move up and down under the restriction of the guide rod 404. Thus, the rotation of the lifting screw rod 406 drives the lifting plate 405 to move up and down, thereby driving the moving bottom plate 7 to move up and down, achieving the function of adjusting the height of the transportation component 6.

[0081] There are four guide rods 404, which are respectively fixedly connected to the four corners of the moving bottom plate 7.

[0082] By using the four guide rods 404 to respectively fix the four corners of the moving bottom plate 7, during the lifting process of the lifting plate 405, a uniform thrust can be given to the moving bottom plate 7, avoiding the situation of excessive pressure generated by local stress on the moving bottom plate 7, which helps to improve the service life of the moving bottom plate 7.

[0083] Every two guide rods 404 are connected by a connecting strip 407, and the two connecting strips 407 are both fixedly connected to the lifting plate 405.

[0084] The moving device is used to horizontally transport the die-cut pole piece 8 to the next process. Therefore, the moving bottom plate 7 needs to have an appropriate length, and usually a rectangular plate is selected. Since in addition to the lifting plate 405 needs to be placed below the general assembly plate 1, if the lifting plate 405 also uses a rectangular plate and is directly fixed to the lower part of the guide rod 404, then the gravity of the lifting plate 405 will be greatly increased, bringing an extra burden to the lifting screw rod 406. In the present invention, first, the four guide rods 404 are connected in pairs by two connecting strips 407, and then the lifting plate 405 with a relatively narrow length and width is fixed to the connecting strips 407, which can reduce the total gravity and the burden on the lifting screw rod 406.

[0085] The lower end of the lifting screw rod 406 passes through the fixed plate 403 and is connected to a lifting handwheel 408. The lifting handwheel 408 is used to drive the lifting screw rod 406 to rotate, and it is more convenient to rotate the lifting screw rod 406.

[0086] Bearing plates 409 corresponding to the number of guide rods 404 are fixed below the general assembly plate 1. Each bearing plate 409 is equipped with a sliding bearing 410, and the sliding bearing 410 is slidably connected to the guide rod 404.

[0087] When the height of the moving device is adjusted and the lifting screw rod 406 is in a static state, the four sliding bearings 410 respectively generate a certain amount of sliding friction on the four guide rods 404. By using this friction, the overall gravity of the lifting device 4, the lifting plate 405, and the guide rod 404 can be partially offset, reducing the load pressure on the lifting screw rod 406 in the static state.

[0088] There are four connecting columns 402. The upper ends of the four connecting columns 402 are fixed to the lower surface of the general installation, and the lower ends are respectively fixed to the four corners of the fixed plate 403.

[0089] By using the four connecting columns 402 to connect the four corners of the fixed plate 403 respectively, the fixed plate 403 can be located below the lifting bottom plate, and by using the connecting columns 402, the fixed plate 403 can cross the lifting bottom plate and be fixed to the general assembly plate 1.

[0090] III. Moving device

[0091] 1. Moving assembly 5

[0092] As Figure 6 shown, the moving bottom plate 7 is provided with a through groove 701. The moving assembly 5 includes a mounting block 501 fixed to the lower surface of the moving bottom plate 7, a moving lead screw 502 rotatably connected to the mounting block 501, a moving motor 503 fixed below the moving bottom plate 7 and used to drive the moving lead screw 502, and a mating block 504. One end of the mating block 504 is fixedly connected to the transportation assembly 6, and the other end is threadedly connected to the moving lead screw 502.

[0093] The above provides a common lead screw motor type moving structure; since space is usually required above the moving bottom plate 7 for the movement of the transportation assembly 6 and the installation of the next process, the present invention provides a through groove 701 in the moving bottom plate 7 to communicate the upper and lower parts of the moving bottom plate 7, so that the moving assembly 5 can be installed below the moving bottom plate 7, effectively utilizing the space.

[0094] Furthermore, the moving bottom plate 7 is provided with an adjusting slide rail 505 and an adjusting slide rail 506 whose length directions are the same as the moving direction of the transportation assembly 6. The adjusting slide rail 505 is slidably fitted with a first sensor 507, and the adjusting slide rail 506 is slidably fitted with a second sensor 508.

[0095] The first sensor 507 and the second sensor 508 serve as safety switches, which can prevent the moving lead screw 502 from exceeding the stroke and avoid collision with the mold.

[0096] By using the adjusting slide rail 505 and the adjusting slide rail 506, the positions of the first sensor 507 and the second sensor 508 can be adjusted respectively, which is convenient for the staff to adjust the positions of the two sensors according to the actual positions of the mold 2 and the moving device.

[0097] 2. Transportation assembly 6

[0098] As Figures 7 to 9As shown in the figure, the transportation component 6 includes a transportation plate 601 slidably connected to the moving bottom plate 7, a suction plate 602 provided on the transportation plate 601, a first driven wheel 603 and a second driven wheel 604 respectively rotatably connected to both ends of the suction plate 602, and a belt 605 in transmission cooperation with the first driven wheel 603 and the second driven wheel 604; the transportation plate 601 is provided with a pair of first fixing blocks 606 and a pair of second fixing blocks 607, one end of the suction plate 602 is fixed to the transportation plate 601 in a two-point manner through the first fixing block 606 and the second fixing block 607, and the other end of the suction plate 602 is suspended.

[0099] A driving wheel 608 is rotatably connected to the first fixing block 606, one end of the driving wheel 608 passes through one of the first fixing blocks 606 and is connected to a transmission motor 609, and the driving wheel 608 is in transmission cooperation with the belt 605.

[0100] Specific working principle: After the pole piece 8 is die-cut, it falls onto the belt 605. The belt 605 conveys the die-cut pole piece 8 and reserves the position of the next pole piece 8 for the next die-cutting and material collection. This cycle continues until the belt 605 is covered with pole pieces 8, and then it can be sent to the next process through the moving component 5; since one end of the suction plate 602 is a suspended end, in order to ensure the stable installation of the suction plate 602, the present invention uses the first fixing block 606 and the second fixing block 607 to simultaneously fix the end of the suction plate 602, making the suspended end of the transportation component 6 more stable during the movement and material collection process.

[0101] In order to enable the die-cut pole piece 8 to stably fall onto the belt 605, the present invention is further arranged as follows.

[0102] The side surface of the suction plate 602 is provided with a negative pressure exhaust hole 610, the suction plate 602 is provided with a plurality of strip-shaped negative pressure grooves 611, a plurality of negative pressure through holes 612 are provided at each negative pressure groove 611 and on the belt 605, and the negative pressure exhaust hole 610 is communicated with the negative pressure through holes 612.

[0103] The negative pressure exhaust hole 610 can be communicated with an air extractor, and the air extractor is used to generate negative pressure at the negative pressure through holes 612. Thus, after the pole piece 8 is die-cut, it can be adsorbed on the belt 605. The negative pressure groove 611 corresponds to the negative pressure through holes 612 on the upper surface of the negative pressure belt 605. If only the negative pressure through holes 612 are provided, after the belt 605 rotates, the negative pressure through holes 612 on the belt 605 will not correspond to the negative pressure through holes 612 on the transportation plate 601, resulting in the pole piece 8 slipping on the belt 605 or not being able to transport the pole piece 8 at all. By providing the negative pressure grooves 611, the corresponding negative pressure through holes 612 on the belt 605 will always be in a negative pressure state, and there will be no place without negative pressure, so that the belt 605 always has an adsorption force on the pole piece 8.

[0104] The driven wheel one 603 is provided with a plurality of annular grooves 613 corresponding to the negative pressure grooves 611 one by one along its axial direction, and the negative pressure grooves 611 extend into the annular grooves 613.

[0105] The number and positions of the annular grooves 613 are the same as those of the negative pressure grooves 611. The suction plate 602 extends into the annular grooves 613, so that the negative pressure grooves 611 can also extend into the annular grooves 613, increasing the overall negative pressure adsorption area of the conveying assembly 6. When the pole piece 8 falls on the edge of the belt 605, there is a larger effective adsorption area, increasing the stability of the pole piece 8 after blanking and reducing the influence on the position of the uncut pole piece 8.

[0106] The above content is the detailed description of the die-cutting mechanism provided by the present invention. In addition, the present invention also provides a pole piece die-cutting machine, which includes a unwinding mechanism and also includes the above-mentioned die-cutting mechanism.

[0107] The pole piece 8 die-cutting machine adopting the die-cutting mechanism provided by the present invention can match the working efficiency of the unwinding mechanism, the grinding mechanism and the winding mechanism, thereby improving the overall production efficiency of the pole piece 8.

[0108] The above is a specific description of the preferred embodiment of the present invention. However, the present invention is not limited to the described embodiment. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A die-cutting mechanism, characterized in that, it includes an assembly plate (1), a die (2), a driving device (3), a lifting device (4) and a moving device; the die (2) includes an upper die (201) and a lower die (202), and the lower die (202) is provided with a receiving groove (203); the driving device (3) is used to drive the longitudinal movement of the upper die (201); the moving device includes a moving component (5), a transporting component (6) and a moving bottom plate (7); the lifting device (4) is used to adjust the height of the moving device; one end of the transporting component (6) is slidably connected to the moving bottom plate (7), and the other end is suspended, and the moving component (5) drives the transporting component (6) to slide on the moving bottom plate (7) and brings the suspended end of the transporting component (6) into or out of the receiving groove (203); the transporting component (6) includes a transporting plate (601) slidably connected to the moving bottom plate (7), a suction plate (602) arranged on the transporting plate (601), a driven wheel one (603) and a driven wheel two (604) respectively rotatably connected to both ends of the suction plate (602), and a belt (605) in transmission cooperation with the driven wheel one (603) and the driven wheel two (604); the transporting plate (601) is provided with a pair of first fixing blocks (606) and a pair of second fixing blocks (607), and one end of the suction plate (602) is fixed to the transporting plate (601) in a two-point manner through the first fixing block (606) and the second fixing block (607), and the other end of the suction plate (602) is suspended; the side surface of the suction plate (602) is provided with negative pressure exhaust holes (610), the suction plate (602) is provided with a plurality of strip-shaped negative pressure grooves (611), and a plurality of negative pressure through holes (612) are opened at each negative pressure groove (611) and on the surface of the belt (605), and the negative pressure exhaust holes (610) are communicated with the negative pressure through holes (612); the driven wheel one (603) is provided with a plurality of annular grooves (613) corresponding to the negative pressure grooves (611) along its axial direction, and the negative pressure grooves (611) extend into the annular grooves (613).

2. The die-cutting mechanism according to claim 1, characterized in that, a driving wheel (608) is rotatably connected to the first fixing block (606), one end of the driving wheel (608) passes through one of the first fixing blocks (606) and is connected to a transmission motor (609), and the driving wheel (608) is in transmission cooperation with the belt (605).

3. The die-cutting mechanism according to claim 1, characterized in that, The moving bottom plate (7) is provided with a through groove (701). The moving component (5) includes a mounting block (501) fixed to the lower surface of the moving bottom plate (7), a moving lead screw (502) rotatably connected to the mounting block (501), a moving motor (503) fixed below the moving bottom plate (7) and used to drive the moving lead screw (502), and a mating block (504). One end of the mating block (504) is fixedly connected to the conveying component (6), and the other end is threadedly connected to the moving lead screw (502).

4. The die-cutting mechanism according to claim 3, characterized in that, the moving bottom plate (7) is provided with a first adjusting slide rail (505) and a second adjusting slide rail (506) whose length direction is the same as the moving direction of the conveying component (6). The first adjusting slide rail (505) is slidably engaged with a first sensor (507), and the second adjusting slide rail (506) is slidably engaged with a second sensor (508).

5. The die-cutting mechanism according to claim 1, characterized in that, the driving device (3) includes a mounting frame (301), a downward pressing component (302) longitudinally slidably connected to the mounting frame (301) and used to drive the upper die (201) and the lower die (202) to close, a driving motor (303) arranged on the mounting frame (301), a crankshaft (304) driven by the driving motor (303), a vertical connecting piece (305) rotatably connected to the crankshaft (304), and a horizontal connecting piece (306). One end of the horizontal connecting piece (306) is rotatably connected to the vertical connecting piece (305), and the other end is connected to the downward pressing component (302).

6. The die-cutting mechanism according to claim 5, characterized in that, the mounting frame (301) includes a mounting rack and a support seat (308). The mounting rack is provided with an adjusting groove (309), and the support seat (308) is slidably engaged with the adjusting groove (309); the mounting rack is provided with an adjusting lead screw (310), a rotating seat (311) and an adjusting handwheel (312) with a handle. One end of the adjusting lead screw (310) is threadedly connected to the support seat (308), and the other end is rotatably connected to the rotating seat (311). The adjusting handwheel (312) is used to drive the adjusting lead screw (310) to rotate.

7. The die-cutting mechanism according to claim 5, characterized in that, the mounting frame (301) is provided with a longitudinal slide rail (313). The downward pressing component (302) includes a moving plate (314) slidably engaged with the longitudinal slide rail (313), a connecting block (315) connected to the upper die (201), and a joint connecting piece (316) with two ends respectively connected to the moving plate (314) and the connecting block (315); the connecting block (315) is provided with a chute (317), and the lower end of the joint connecting piece (316) is provided with a slider (318) located in the chute (317).

8. The die-cutting mechanism according to claim 1, characterized in that, The lifting device (4) includes a lifting opening (401) formed in the general assembly plate (1) for the movable bottom plate (7) to move, a fixing plate (403) installed below the general assembly plate (1) through a plurality of connecting columns (402), a lifting plate (405) installed below the movable bottom plate (7) through a plurality of guide rods (404), and a longitudinally arranged lifting lead screw (406). The lifting lead screw (406) is rotatably connected to the fixing plate (403) and is threadedly connected to the lifting plate (405).

9. A pole piece die-cutting machine, comprising an unwinding mechanism, characterized in that, it further comprises a die-cutting mechanism as described in any one of claims 1-8.

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