Pole piece thickness real-time detection mechanism for negative electrode rolling main machine

Abstract

The utility model discloses a pole piece thickness real-time detection mechanism for a negative electrode rolling main machine. The pole piece thickness real-time detection mechanism comprises a shell, a fixing plate, a support, a pressing roller, a U-shaped rack, a sensor A and a sensor B, a shell is arranged between the host and the slave and located on the rear side of the pole piece, a fixing plate is arranged in the shell, and the fixing plate vertically moves up and down through a lifting assembly; supports are vertically and symmetrically arranged on the left side and the right side of the lower surface of the fixing plate, and a pressing roller is horizontally, longitudinally and rotationally arranged at the lower end of each support. A U-shaped rack is horizontally and longitudinally arranged on the lower surface of the fixing plate relative to the position between the two pressing rollers in a sliding mode, and the two opening ends of the U-shaped rack are arranged forwards and arranged on the upper side and the lower side of the pole piece at intervals; a sensor A is arranged on the end face of the opening end of the upper side of the U-shaped rack, a sensor B is arranged on the end face of the opening end of the lower side of the U-shaped rack, and then the thickness of the pole piece is measured through cooperation of the sensor A and the sensor B. The thickness of the pole piece passing through the host is monitored in real time, and the wrinkling phenomenon is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lithium battery production, concretely relates to a negative pole piece thickness real -time detection mechanism for negative pole roller pressure host. BACKGROUND

[0002] The existing host and slave machine do not have pole piece thickness detection function, so after the pole piece passes the host, the pole piece thickness on the operation side and the driving side is inconsistent, which easily causes the ear wrinkling phenomenon in the slave machine entry pulling place, thereby invisibly increasing the pole piece scrap rate, and the debugging wrinkling also delays the production capacity. At present, the pole piece is generally measured thick by artificial way, but the process is time -consuming and labor -intensive, and the overall production efficiency is affected. Therefore, the above problems need to be solved. SUMMARY

[0003] The utility model solves the technical problem to provide a negative pole piece thickness real -time detection mechanism for negative pole roller pressure host, through the cooperation of lifting assembly, press roll, moving assembly, U type frame, sensor A and sensor B, the thickness after the pole piece passes the host can be monitored in real time, time -saving and labor -saving, effectively reduce the occurrence of wrinkling phenomenon, reduce the scrap rate, realize the cost reduction and efficiency increase, and also reduce unnecessary machine debugging time, thereby increasing the production capacity.

[0004] To solve the above technical problems, the utility model discloses the following technical scheme: A kind of negative pole piece thickness real-time detection mechanism for negative pole roller pressing host computer of the utility model, including host computer and slave, the host computer and slave are left and right interval arrangement, and pole piece after the host computer enters the slave again;Its innovation point is: including shell, fixed plate, lifting assembly, support, compression roller, U-shaped frame, moving assembly, sensor A and sensor B;Between the host computer and slave and located at the rear side of pole piece still vertically provided with shell, the shell is open type hollow cuboid structure of front surface, and fixed plate is also horizontally arranged in its inside middle position, the fixed plate is vertically up and down motion in shell interior by lifting assembly;Support is also vertically symmetrical and arranged on the lower surface of the fixed plate left and right sides, and compression roller is also horizontally longitudinally rotatably arranged in the lower end of each support, and then the pole piece between host computer and slave is pressed down by the descending of compression roller, and it is ensured that the pole piece between two compression rollers is in horizontal state;U-shaped frame is also horizontally longitudinally arranged on the lower surface of the fixed plate relative to two compression rollers, and the U-shaped frame is horizontally longitudinally reciprocating motion by moving assembly;The opening slot of the U-shaped frame is arranged along horizontal transverse, and its two opening ends are forwardly arranged, and are interval arranged on the upper and lower sides of the pole piece between two compression rollers;Sensor A is arranged on the upper side opening end end face of the U-shaped frame, and the detection end of sensor A is vertically downwardly arranged;Sensor B is arranged on the lower side opening end end face of the U-shaped frame, and the detection end of sensor B is vertically upwardly arranged, and then the thickness of pole piece is measured by the cooperation of sensor A and sensor B.

[0005] Preferably, the left and right side surfaces of the shell are vertically embedded with avoidance grooves matching the pole piece relative to the position of the pole piece, each avoidance groove is in communication with the interior of the shell, and the avoidance grooves ensure that the shell does not interfere with the transmission of the pole piece between the host computer and the slave.

[0006] Preferably, the utility model also includes a first rotating shaft, and the first rotating shaft is coaxially arranged at the two ends of the compression roller, one end of the first rotating shaft is rotatably connected to the lower end of the support, and the other end of the first rotating shaft is fixedly connected to the two ends of the compression roller by a flange, so that the compression roller and the support are rotatably connected around the axis of the compression roller.

[0007] Preferably, it further comprises a second reinforcing plate; the length of the roller surface of each said pressing roller matches the width of the pole piece, and a second reinforcing plate is vertically arranged between the upper end of each said support and the lower surface of the fixed plate on both sides, and the corresponding support is fixed and reinforced by the second reinforcing plate.

[0008] Preferably, the lifting assembly comprises an electric push rod, a lifting plate, a sliding rail, a first sliding block and a limiting plate; a lifting plate matching the inner part of the shell is horizontally arranged on the upper surface of the fixed plate, and the lifting plate is screw-fixed with the upper surface of the fixed plate; an electric push rod is vertically arranged on the center position of the upper surface of the shell, and the pushing end of the electric push rod vertically extends to the inner part of the shell and is screw-fixed with the middle position of the upper surface of the lifting plate, thereby driving the lifting plate to vertically move up and down in the shell; two first sliding blocks are respectively arranged in front of and behind the left and right sides of the lifting plate, and a sliding rail matching the first sliding block is vertically arranged on the inner side of the shell corresponding to each first sliding block, thereby ensuring the stability of the vertical up-and-down movement of the lifting plate through the cooperation of the first sliding block and the sliding rail; a limiting plate is horizontally arranged at the upper and lower ends of each said sliding rail, and each said limiting plate is fixedly connected with the corresponding position of the left and right inner sides of the shell, and the vertical movement of the U-shaped rack with the lifting plate is up-and-down limited by the limiting plate.

[0009] Preferably, the upper limit position of the electric push rod needs to ensure that the U-shaped rack is above the pole piece, and the lower limit position of the electric push rod needs to ensure that the two open ends of the U-shaped rack are symmetrically arranged on the upper and lower sides of the pole piece.

[0010] Preferably, the horizontal longitudinal reciprocating motion of the U-shaped rack is not interfered with the horizontal transmission action of the pole piece, and the moving assembly comprises side plates, a first reinforcing plate, a motor, a threaded rod, guide rails, a second sliding block and a bottom plate; the vertical transverse side plates are symmetrically arranged on the lower surface of the fixed plate relative to the positions between the two supports, and the threaded rod is horizontally and longitudinally arranged at the middle position between the two side plates, the two ends of the threaded rod are rotatably connected with the corresponding side plates, and the rear end of the threaded rod extends out of the corresponding side plates and is connected with the output end of the motor; the motor is horizontally and longitudinally arranged and is fixedly connected with the rear side plate by screwing; the guide rails are symmetrically and horizontally arranged on the upper and lower sides of the threaded rod relative to the positions between the two side plates, and the two ends of each guide rail are fixedly connected with the corresponding side plates by screwing; the two second sliding blocks are symmetrically and horizontally arranged on the threaded rod, and are fixedly connected with the threaded rod by screwing and are horizontally and longitudinally connected with each guide rail by sliding; the bottom plate is horizontally and longitudinally arranged, and the upper surface of the rear side of the bottom plate is fixedly connected with the upper surfaces of the two second sliding blocks, and the bottom plate moves horizontally and longitudinally through the second sliding block; the U-shaped rack is fixedly installed on the lower surface of the bottom plate and moves horizontally and longitudinally with the bottom plate, and the thickness of the pole piece in the forward direction is measured by the cooperation of the sensor A and the sensor B.

[0011] Preferably, the horizontal longitudinal motion stroke of the U-shaped rack needs to ensure that the sensor A and the sensor B can measure the thickness of the pole piece in the width direction, and the horizontal limit position of the rear side of the U-shaped rack needs to ensure that the two open ends of the U-shaped rack are separated from the range of the pole piece.

[0012] Preferably, the sensor A and the sensor B are symmetrically arranged relative to the pole piece, and the distance between the two is L ab .

[0013] The utility model discloses the cooperation of lifting assembly, compression roller, moving assembly, U-shaped rack, sensor A and sensor B can monitor the thickness of the pole piece after the main machine, save time and effort, effectively reduce the occurrence of wrinkling, reduce the scrap rate, realize the cost reduction and benefit increase, and simultaneously reduce unnecessary machine adjusting time, and further increase the production capacity. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed in the embodiments will be simply introduced below, and obviously, the drawings in the following description are only some embodiments described in the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0015] Figure 1 It is a structure schematic view of the negative pole piece thickness real-time detection mechanism for the pole piece pressing host.

[0016] Figure 2 It is Figure 1 A-A view.

[0017] Wherein, 1 - host; 2 - slave; 3 - pole piece; 4 - shell; 5 - electric push rod; 6 - lifting plate; 7 - slide rail; 8 - first sliding block; 9 - limiting plate; 10 - fixed plate; 11 - support; 12 - pressing roller; 13 - side plate; 14 - motor; 15 - threaded rod; 16 - guide rail; 17 - second sliding block; 18 - first reinforcing plate; 19 - bottom plate; 20 - U-shaped rack; 21 - sensor A; 22 - sensor B; 23 - second reinforcing plate. DETAILED DESCRIPTION

[0018] The technical scheme of the utility model will be described clearly and completely by specific embodiments.

[0019] The negative pole piece thickness real-time detection mechanism for the pole piece pressing host, including host 1 and slave 2, host 1 and slave 2 left and right interval arrangement, and pole piece 3 passes through host 1 and then enters slave 2 again, and the specific structure is as shown in Figure 1 、 Figure 2 Also including shell 4, fixed plate 10, lifting assembly, support 11, pressing roller 12, U-shaped rack 20, moving assembly, sensor A 21 and sensor B 22, and between host 1 and slave 2 and located at the rear side of pole piece 3, shell 4 is also vertically provided, shell 4 is the hollow cuboid structure of open front surface, and fixed plate 10 is also horizontally provided in the middle position inside it, and fixed plate 10 makes vertical up and down movement in the shell 4 by lifting assembly; support 11 is also vertically and symmetrically provided on the left and right sides of the lower surface of fixed plate 10, and pressing roller 12 is also horizontally and longitudinally rotatably provided at the lower end of each support 11, and then the pole piece 3 between host 1 and slave 2 is pressed by the descent of pressing roller 12, and it is ensured that the pole piece 3 between the two pressing rollers 12 is in a horizontal state; U-shaped rack 20 is also horizontally and longitudinally provided on the lower surface of fixed plate 10 relative to the two pressing rollers 12, and U-shaped rack 20 makes horizontal longitudinal reciprocating motion by moving assembly; the opening groove of U-shaped rack 20 is arranged along the horizontal transverse direction, and the two opening ends thereof are arranged forward and are spaced apart on the upper and lower sides of the pole piece 3 between the two pressing rollers 12; sensor A 21 is provided on the upper side opening end face of U-shaped rack 20, and the detection end of sensor A 21 is vertically downward; sensor B 22 is provided on the lower side opening end face of U-shaped rack 20, and the detection end of sensor B 22 is vertically upward, and then the thickness of pole piece 3 is measured by the cooperation of sensor A 21 and sensor B 22.

[0020] As Figure 1 、 Figure 2 As shown in FIG. 1, the left and right sides of the shell 4 are vertically embedded with a matching slot for the pole piece 3 at the front end side and relative to the position of the pole piece 3, and each slot is in communication with the interior of the shell 4, and the transmission of the pole piece 3 between the host 1 and the slave 2 is ensured by the slot.

[0021] As shown in FIG. 1, the left and right sides of the shell 4 are vertically embedded with a matching slot for the pole piece 3 at the front end side and relative to the position of the pole piece 3, and each slot is in communication with the interior of the shell 4, and the transmission of the pole piece 3 between the host 1 and the slave 2 is ensured by the slot. Figure 1 As shown in FIG. 1, the left and right sides of the shell 4 are vertically embedded with a matching slot for the pole piece 3 at the front end side and relative to the position of the pole piece 3, and each slot is in communication with the interior of the shell 4, and the transmission of the pole piece 3 between the host 1 and the slave 2 is ensured by the slot.

[0022] As shown in FIG. 1, the left and right sides of the shell 4 are vertically embedded with a matching slot for the pole piece 3 at the front end side and relative to the position of the pole piece 3, and each slot is in communication with the interior of the shell 4, and the transmission of the pole piece 3 between the host 1 and the slave 2 is ensured by the slot. Figure 1 As shown in FIG. 1, the left and right sides of the shell 4 are vertically embedded with a matching slot for the pole piece 3 at the front end side and relative to the position of the pole piece 3, and each slot is in communication with the interior of the shell 4, and the transmission of the pole piece 3 between the host 1 and the slave 2 is ensured by the slot.

[0023] The lifting assembly comprises an electric push rod 5, a lifting plate 6, a sliding rail 7, a first sliding block 8 and a limiting plate 9. Figure 1 、 Figure 2As shown, the lifting plate 6 matched with the inside of the shell 4 is horizontally arranged on the upper surface of the fixed plate 10 in the inside of the shell 4, and the lifting plate 6 is screw-fixed with the upper surface of the fixed plate 10; the electric push rod 5 is vertically arranged on the upper surface of the shell 4 relative to the center position of the lifting plate 6, and the pushing end of the electric push rod 5 vertically extends to the inside of the shell 4 and is screw-fixed with the middle position of the upper surface of the lifting plate 6, thereby driving the lifting plate 6 to vertically move up and down in the inside of the shell 4; the two first sliding blocks 8 are respectively arranged at the front and back of the left and right sides of the lifting plate 6, and the slide rails 7 matched with the first sliding blocks 8 are respectively vertically arranged on the left and right inner sides of the shell 4 relative to the position of each first sliding block 8, thereby ensuring the stability of the vertical up and down movement of the lifting plate 6 through the cooperation of the first sliding block 8 and the slide rail 7; the limiting plates 9 are respectively horizontally arranged at the upper and lower ends of each slide rail 7, and each limiting plate 9 is fixedly connected with the corresponding position of the left and right inner sides of the shell 4, and the vertical movement of the U-shaped rack 20 with the lifting plate 6 is limited up and down through the limiting plate 9; wherein the upper limit position of the electric push rod 5 needs to ensure that the U-shaped rack 20 is above the pole piece 3, and the lower limit position needs to ensure that the two opening ends of the U-shaped rack 20 are symmetrically and spaced apart on the upper and lower sides of the pole piece 3.

[0024] The horizontal longitudinal reciprocating movement of the U-shaped rack 20 and the horizontal transmission action of the pole piece 3 do not interfere with each other, and the moving assembly includes the side plate 13, the first reinforcing plate 18, the motor 14, the threaded rod 15, the guide rail 16, the second sliding block 17 and the bottom plate 19; as shown Figure 1 、 Figure 2 As shown, the vertical and horizontal side plates 13 are symmetrically arranged between the two supports 11 on the lower surface of the fixed plate 10, and the threaded rods 15 are horizontally and longitudinally arranged between the two side plates 13, and the two ends of the threaded rods 15 are rotationally connected with the corresponding side plates 13, and the rear end of the threaded rod 15 horizontally and vertically extends out of the corresponding side plate 13 and is connected with the output end of the motor 14; wherein the motor 14 is horizontally and longitudinally arranged and is screw-fixed with the rear side plate 13;

[0025] As shown Figure 1 、 Figure 2As shown, the guide rails 16 are horizontally and symmetrically arranged between the two side plates 13 on the upper and lower sides of the threaded rod 15, and the two ends of each guide rail 16 are respectively screwed and fixed with the corresponding side plate 13; two second sliding blocks 17 are vertically arranged between the two side plates 13 and are respectively screwed with the threaded rod 15 and are respectively connected with each guide rail 16 in horizontal and longitudinal sliding manner; the bottom plate 19 is horizontally and longitudinally arranged, and the upper surface of the bottom plate 19 is fixedly connected with the upper surfaces of the two second sliding blocks 17, and the bottom plate 19 moves horizontally and longitudinally through the second sliding blocks 17; the U-shaped rack 20 is fixedly installed on the lower surface of the bottom plate 19, and moves horizontally and longitudinally with the bottom plate 19, and measures the thickness of the pole piece 3 in the forward movement through the cooperation of the sensor A 21 and the sensor B 22. The horizontal and longitudinal movement stroke of the U-shaped rack 20 needs to ensure that the sensor A 21 and the sensor B 22 can measure the thickness of the pole piece 3 in the width direction range, and the horizontal limit position of the rear side of the U-shaped rack 20 needs to ensure that the two open ends of the U-shaped rack 20 are out of the range of the pole piece 3; the sensor A 21 and the sensor B 22 are symmetrically arranged above and below the pole piece 3, and the distance between the two is L ab .

[0026] The working principle of the utility model is: firstly, under the driving of the electric push rod 5, the two compression rollers 12 move vertically downward with the lifting plate 6, press the pole piece 3 between the host computer 1 and the slave computer 2, and ensure that the pole piece 3 between the two compression rollers 12 is in a horizontal state; then under the driving of the moving assembly, the U-shaped rack 20 moves horizontally and longitudinally with the bottom plate 19, the distance between the U-shaped rack 20 and the upper surface of the pole piece 3 is L a , and the distance between the U-shaped rack 20 and the lower surface of the pole piece 3 is L b , which can be calculated to obtain the thickness H of the pole piece 3. ab -L a -L b .

[0027] The utility model has the advantages that the utility model can monitor the thickness of the pole piece 3 after passing through the host computer 1 in real time through the cooperation of the lifting assembly, the compression roller 12, the moving assembly, the U-shaped rack 20, the sensor A 21 and the sensor B 22, which saves time and effort, effectively reduces the occurrence of wrinkling, reduces the scrap rate, realizes cost reduction and benefit increase, and reduces unnecessary machine adjustment time, thereby increasing production capacity.

[0028] The above-described embodiments are merely preferred embodiments of the present application and are not intended to limit the design concept and scope of the present application. Without departing from the design concept of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope of the present application. The technical content claimed by the present application has been entirely recorded in the technical requirements.

Claims

1. A real-time electrode thickness detection mechanism for a negative electrode roller pressing host, comprising a master and a slave, the master and slave being spaced apart on the left and right sides, and the electrode passes through the master before entering the slave; characterized in that: It also includes a shell, a fixed plate, a lifting assembly, a bracket, a pressure roller, a U-shaped frame, a moving assembly, a sensor A and a sensor B; a shell is vertically provided between the host and the slave and at the rear side of the pole piece, the shell is a hollow rectangular structure with an open front surface, and a fixed plate is horizontally provided in the middle position inside the shell, and the fixed plate moves vertically up and down inside the shell through the lifting assembly; brackets are vertically symmetrically provided on the left and right sides of the lower surface of the fixed plate, and a pressure roller is provided at the lower end of each of the brackets for horizontal longitudinal rotation, and then the pole piece between the host and the slave is pressed down by the descent of the pressure roller, and the pole piece between the two pressure rollers is ensured to be in a in a horizontal state; a U-shaped frame is further provided horizontally and longitudinally on the lower surface of the fixed plate relative to the two pressure rollers, and the U-shaped frame performs horizontal and longitudinal reciprocating motion through a moving component; the opening groove of the U-shaped frame is arranged horizontally and transversely, and its two open ends are arranged forward and spaced apart on the upper and lower sides of the pole piece located between the two pressure rollers; a sensor A is provided on the end face of the upper open end of the U-shaped frame, and the detection end of the sensor A is arranged vertically downward; a sensor B is provided on the end face of the lower open end of the U-shaped frame, and the detection end of the sensor B is arranged vertically upward, and then the thickness of the pole piece is measured by the cooperation of sensor A and sensor B.

2. The real-time electrode thickness detection mechanism for a negative electrode roller pressing main machine according to claim 1, characterized in that: Avoidance grooves matching the pole pieces are vertically embedded on the left and right side surfaces of the shell, close to the front end side and relative to the position of the pole piece. Each of the avoidance grooves is connected to the interior of the shell, and the avoidance grooves ensure that the shell does not interfere with the transmission action of the pole piece between the host and the slave.

3. The real-time electrode thickness detection mechanism for a negative electrode roller pressing main machine according to claim 2, characterized in that: The cam is connected to the support frame by a screw thread extending from one end of the cam and the other end of the cam, and the cam is connected to the support frame by a screw thread extending from one end of the cam. The cam is connected to the support frame by a screw thread extending from one end of the cam. The cam is connected to the support frame by a screw thread extending from one end of the cam. The cam is connected to the support frame by a screw thread extending from one end of the cam. The cam is connected to the support frame by a screw thread extending from one end of the cam. The cam is connected to the support frame by a screw thread extending from one end of the cam. The cam is connected to the support frame by a screw thread extending from one end of the cam.

4. The real-time electrode thickness detection mechanism for a negative electrode roller pressing main machine according to claim 3, characterized in that: It also includes a second reinforcing plate; the roller surface length of each pressure roller matches the width of the pole piece, and a second reinforcing plate is vertically provided between the left and right sides of the upper end of each bracket and the lower surface of the fixed plate, and the corresponding bracket is fixed and reinforced by the second reinforcing plate.

5. The real-time electrode thickness detection mechanism for a negative electrode roller pressing main machine according to claim 3, characterized in that: The lifting assembly includes an electric push rod, a lifting plate, a slide rail, a first slider and a limit plate; a lifting plate matching the interior of the shell is also horizontally provided in the interior of the shell relative to the upper surface of the fixed plate, and the lifting plate is screwed and fixed to the upper surface of the fixed plate; an electric push rod is also vertically provided on the upper surface of the shell relative to the center position of the lifting plate, and the pushing end of the electric push rod extends vertically downward to the interior of the shell and is screwed and fixed to the middle position of the upper surface of the lifting plate, thereby driving the lifting plate to move vertically up and down in the shell; two first sliders are also provided at intervals on the left and right sides of the lifting plate, and slide rails matching the first sliders are also vertically provided on the left and right inner sides of the shell relative to each first slider position, thereby ensuring the stability of the vertical up and down movement of the lifting plate through the cooperation of the first slider and the slide rail; limit plates are also horizontally provided at the upper and lower ends of each of the slide rails, and each of the limit plates is fixedly connected to the corresponding positions of the left and right inner sides of the shell, and the U-shaped frame is limited up and down with the vertical movement of the lifting plate through the limit plates.

6. The real-time electrode thickness detection mechanism for a negative electrode roller pressing main machine according to claim 5, characterized in that: The upper limit position of the electric push rod needs to ensure that the U-shaped frame is located above the pole piece, and the lower limit position needs to ensure that the two open ends of the U-shaped frame are symmetrically located on the upper and lower sides of the pole piece.

7. The real-time electrode thickness detection mechanism for a negative electrode roller pressing main machine according to claim 1, characterized in that: The horizontal and longitudinal reciprocating motion of the U-shaped frame does not interfere with the horizontal transmission action of the pole piece, and the moving assembly includes side plates, a first reinforcing plate, a motor, a threaded rod, a guide rail, a second slider and a bottom plate; vertically and horizontally arranged side plates are symmetrically arranged at intervals between the two brackets on the lower surface of the fixed plate, and a threaded rod is also horizontally and longitudinally arranged in the middle position between the two side plates, and the two ends of the threaded rod are respectively rotatably connected to the corresponding side plates, and the rear end thereof extends horizontally and vertically from the corresponding side plates and is linked to the output end of the motor; the motor is arranged horizontally and longitudinally and is screwed and fixed to the side plate on the rear side; the upper and lower sides of the threaded rod are relative to the two side plates Guide rails are also arranged horizontally symmetrically and in parallel, and the two ends of each guide rail are respectively screwed and fixed to the corresponding side plates; two second sliders are also sleeved on the threaded rod at front and rear intervals, and the two second sliders are vertically arranged between the two side plates, and are respectively screwed to the threaded rods, and are respectively connected to each guide rail for horizontal longitudinal sliding; the bottom plate is arranged horizontally and longitudinally, and its upper surface is fixedly connected to the upper surfaces of the two second sliders on the rear side, and performs horizontal and longitudinal movement through the second sliders; the U-shaped frame is fixedly installed on the lower surface of the bottom plate, and performs horizontal and longitudinal reciprocating movement with the bottom plate, and measures the thickness of the advancing pole piece through the cooperation of sensor A and sensor B.

8. The real-time electrode thickness detection mechanism for a negative electrode roller pressing main machine according to claim 7, characterized in that: The horizontal longitudinal movement stroke of the U-shaped frame must ensure that sensors A and B can measure the thickness of the width direction of the pole piece, and its horizontal limit position in the rear direction must ensure that the two open ends of the U-shaped frame are out of the range of the pole piece.

9. The real-time electrode thickness detection mechanism for a negative electrode roller pressing main machine according to claim 7, characterized in that: The sensor A and sensor B are symmetrically arranged with respect to the pole piece, and the distance between them is L. ab .

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