A coating machine for power battery pole groups

Abstract

The present invention relates to the technical field of PVC coating in the processing of lead-acid battery pole groups, and specifically to a coating machine for power battery pole groups, including a pushing mechanism, a film feeding mechanism, a film pulling mechanism, and a cutting mechanism. A coating roller and a load-bearing roller parallel to the mounting bracket are arranged at the output end of the pushing mechanism, and the coating rollers on the upper and lower sides respectively contact the upper and lower sides of the pole group pushed by the pushing mechanism. An electric heating rod is arranged in the coating roller, and the coating rollers and the load-bearing rollers on the upper and lower sides are arranged on both sides of the mounting bracket. A first film clamping plate is arranged on both sides of the mounting bracket, and a second film clamping plate is arranged on the rear side of the first film clamping plate. The second film clamping plate is used to press the rolled film merged on both sides onto the two sides of the pole group. The technical solution realizes that the rolled film is gradually merged from both sides to the middle to a bonding state through the first film clamping plate, and under the action of the second film clamping plate, the rolled film is tilted from the middle to one side to be bonded to the lower half of the pole group, thereby automatically performing corresponding coating operations on the side of the pole group.

Description

Technical Field

[0001] The invention relates to the technical field of PVC coating in the process of processing lead-acid battery pole groups, and in particular to a coating machine for power battery pole groups. Background Art

[0002] The existing lead-acid battery electrode stacking is performed by a semi-automatic stacking mechanism to stack the positive and negative plates and separator paper, and then manually wrap the film into the electrode group turnover box and flow to the next casting and welding process. The purpose of the film is to protect each electrode group from damage during the assembly process. At present, the film coating is mainly done manually. The existing film coating methods on the market have a low degree of automation, the quality of the battery cannot be guaranteed, the production efficiency is low, the cost is high, the stability is poor, and there are certain defects in the structure of each component.

[0003] Chinese patent application number "CN201721310274.6" discloses an automatic film coating machine for battery pole groups, which aims to solve the technical problem of slow manual coating of pole groups with PVC film. The machine includes a first pushing mechanism, a second pushing mechanism, a film transporting mechanism, a shelling mechanism and an output mechanism. By modifying the existing film coating machine, after the film coating machine completes the electrode plate coating to form a pole group, the pole group is automatically coated with PVC film through the cooperation of the second pushing mechanism and the film transporting mechanism directly during the output of the pole group. However, the equipment can only coat the upper and lower sides of the pole group with U-shaped PVC film, and the two sides of the pole group have not yet been coated, resulting in poor integrity of the pole group coating, which can easily lead to unstable pole group structure in subsequent processing. Summary of the invention

[0004] Based on this, it is necessary to provide a coating machine for power battery pole groups in response to the existing technical problems.

[0005] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0006] The film-coating machine of a power battery pole group comprises a pushing mechanism for directionally conveying the pole group, a film feeding mechanism is arranged on one side of the output end of the pushing mechanism, the film feeding mechanism conveys the rolled film into the film pulling mechanism, the film pulling mechanism conveys the rolled film laterally to the output end of the pushing mechanism, and the rolled film is cut by the cutting mechanism, and two groups of parallel film coating rollers are arranged at the output end of the pushing mechanism, the film coating rollers on the upper and lower sides respectively contact the upper and lower sides of the pole group pushed by the pushing mechanism, the axis of the film coating roller is perpendicular to the conveying direction of the working end of the pushing mechanism, an electric heating rod is arranged in the film coating roller, and a plurality of load-bearing rollers are arranged along the moving direction of the pole group of the film coating roller, the load-bearing rollers are used to drive the pole group to move in a direction after coating, the film coating rollers and the load-bearing rollers on the upper and lower sides are both installed on a horizontally arranged mounting bracket, and a first film clamping plate is arranged on both sides of the mounting bracket, the first film clamping plate is used to merge the rolled films on both sides of the pole group toward the middle side, and a second film clamping plate is arranged on the rear side of the first film clamping plate, and the second film clamping plate is used to press the rolled films merged on both sides onto the two sides of the pole group.

[0007] Preferably, there are two first clamping plates on each side of the mounting bracket, and the first clamping plates are provided with a first curved surface extending from a side facing the pushing mechanism to the middle, and the two first clamping plates are installed opposite to each other up and down, and a channel with a gradually narrowing opening is formed between the first curved surfaces, and a first heating plate is fixedly installed on the back side of the first curved surface.

[0008] Preferably, there is one second clamping plate on each side of the mounting bracket, the second clamping plate is fixedly mounted on the rear side of the first clamping plate, the second clamping plate is provided with a second curved surface extending downwardly from a side facing the first clamping plate, the horizontal height of one end of the second curved surface facing the first clamping plate is the same as the height of the top side of the channel formed by the straight line of the first curved surface, the second curved surface of the second clamping plate is provided with a rounded corner, a second heating plate is fixedly mounted on the second clamping plate, and the second heating plate is fixedly mounted at a position behind the second curved surface.

[0009] Preferably, the pushing mechanism includes a conveying plate for placing the pole group, and side limit plates are arranged on both sides of the conveying plate. The spacing between the side limit plates matches the width of the pole group. The pushing plate is attached to the upper side of the conveying plate and moves along the extension direction of the side limit plate. The pushing plate is fixedly mounted on the working end of the first linear drive device, and the first linear drive device is used to push the pole group and the roll film to move between the coating rollers.

[0010] Preferably, the first linear drive device is fixedly mounted on a mounting seat arranged on one side of the conveying plate, and at least two horizontally extending guide rods are arranged on the side of the push plate facing the first linear drive device. The guide rods are inserted into guide sleeves arranged on the mounting seat and at the same position as the guide rod axis.

[0011] Preferably, the film feeding mechanism includes a film roll frame for placing the film roll, and a first conveying roller and a second conveying roller are arranged in parallel on one side of the film roll frame. The axes of the film roll frame, the first conveying roller and the second conveying roller are arranged vertically, and the first conveying roller and the second conveying roller rotate relative to each other to convey the film roll passing between the first conveying roller and the second conveying roller. Guide plates are arranged at the discharge ends of the first conveying roller and the second conveying roller, and the guide plates extend to the output end of the pushing mechanism.

[0012] Preferably, the film pulling mechanism includes fixed suction cups. The fixed suction cups are fixedly installed on the side of the guide plate away from the material pushing mechanism through a first mounting frame. There are two fixed suction cups, which are arranged vertically on the upper and lower sides of the end of the guide plate close to the material pushing mechanism. There are notches on the upper and lower sides of the guide plate. The film pulling mechanism further includes movable suction cups. There are two movable suction cups, which are at the same horizontal height as the fixed suction cups. The movable suction cups are driven by a second linear driving device to move in a horizontal direction perpendicular to the conveying direction of the material pushing mechanism. The second linear driving device is fixedly installed on the same side of the guide plate and the material pushing mechanism. The second linear driving device is connected to the two movable suction cups through a second mounting frame.

[0013] Preferably, the second mounting frame is a "C"-shaped flat plate. The opening of the second mounting frame faces the material pushing mechanism. Elastic mounting plates are respectively arranged at both ends of the second mounting frame. The elastic mounting plates are elastically connected to the second mounting frame through a number of horizontally arranged springs. The movable suction cups are fixedly installed on the elastic mounting plates.

[0014] Preferably, a horizontally extending second guide rod is arranged on the side of the second mounting frame facing the second linear driving device. The second guide rod is inserted into a guide seat arranged on the guide plate and coaxial with the second guide rod.

[0015] Preferably, the cutting mechanism includes a cutter fixedly installed on a fixed part. The cutting edge of the cutter is inclined. The cutter is arranged between the fixed suction cups of the film pulling mechanism and the output end of the material pushing mechanism. The fixed part is fixedly installed on a conveyor belt. The transmission shafts at both ends of the conveyor belt are arranged vertically, and the axes of the transmission shafts are arranged horizontally. The transmission belt is driven by a first rotary driving device to drive the cutter to rotate directionally for cutting.

[0016] The beneficial effects of this application compared with the prior art are as follows:

[0017] 1. In the present invention, the material pushing mechanism is used to convey the pole groups after being covered with plates and stacked in a directional manner. When the pole groups drive the cut film rolls to move, the film covering rollers cover the film rolls on the upper and lower sides of the pole groups. The heating rods heat up, so that the film covering rollers have a certain amount of heat. The film covering rollers perform hot ironing on the film rolls, making the film rolls adhere to the pole groups better.

[0018] 2. In the present invention, the film covering rollers and the load-bearing rollers are installed through the mounting brackets. The first film clamping plates are installed oppositely up and down, and a channel with a gradually narrowing opening is formed between the first arc surfaces. During the contact between the folded film rolls on both sides of the pole groups and the first arc surfaces of the first film clamping plates, the film rolls are gradually limited by the first arc surfaces and merged towards the middle until they are in a fitting state. After the first heating sheets heat the film rolls on both sides of the pole groups to fuse, the preliminary covering on both sides of the pole groups is completed.

[0019] 3. The present invention uses a second clamping plate installed on the rear side of the first clamping plate to allow both sides of the rolled film to move to the second curved surface of the second clamping plate after passing through the first clamping plate. Under the action of the second curved surface, the rolled film is tilted from the middle to one side and fits on the lower half of the pole group. The rounded corners of the second curved surface facilitate the bending of the rolled film and prevent the right-angled surface from causing damage to the rolled film.

[0020] 4. The present invention places the rolled film on a film stand, and the first conveying roller and the second conveying roller rotate relative to each other to drive the film stand to rotate to convey the rolled film. The free end of the rolled film moves to the guide plate after passing through the first conveying roller and the second conveying roller, and moves toward the output end of the pushing mechanism in contact with the surface of the guide plate.

[0021] 5. The present invention installs the movable suction cup by arranging an elastic mounting plate on the second mounting frame, so that when the pole group pulls the rolled film, the spring bends so that the rolled film maintains a certain tension and then adheres to the surface of the pole group. The existence of the elastic mounting plate prolongs the time for the movable suction cup to fix the free end of the rolled film, and will not cause excessive pulling on the rolled film to cause damage to the rolled film, thereby ensuring that the rolled film has a better effect of adhering to the surface of the pole group. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This application is a three-dimensional Figure 1 ;

[0023] Figure 2 This application is a three-dimensional Figure 2 ;

[0024] Figure 3 It is a front view of the laminating roller, load-bearing roller and mounting bracket of the present application;

[0025] Figure 4 is a three-dimensional diagram of the laminating roller, the load-bearing roller and the mounting bracket of the present application;

[0026] Figure 5 yes Figure 4 A local enlarged view of point A;

[0027] Figure 6 is a top view of the material pushing mechanism of the present application;

[0028] Figure 7 It is a three-dimensional structure of the film feeding mechanism and the film pulling mechanism of the present application. Figure 1 ;

[0029] Figure 8 yes Figure 7 A partial enlarged view of point B;

[0030] Fig. 9 It is a three-dimensional structure of the film feeding mechanism and the film pulling mechanism of the present application. Figure 2 ;

[0031] Fig.10 is a three-dimensional diagram of the cutting mechanism of the present application;

[0032] The numbers in the figure are:

[0033] 1-push mechanism; 1a-conveying plate; 1b-side limit plate; 1c-push plate; 1c1-guide rod; 1d-first linear drive device; 1d1-mounting seat; 1d2-guide sleeve;

[0034] 2-film feeding mechanism; 2a-film roll frame; 2b-first conveying roller; 2c-second conveying roller; 2d-guide plate; 2d1-notch; 2d2-guide seat;

[0035] 3-film pulling mechanism; 3a-fixed suction cup; 3a1-first mounting frame; 3b-movable suction cup; 3c-second linear drive device; 3d-second mounting frame; 3d1-elastic mounting plate; 3d2-spring; 3d3-second guide rod;

[0036] 4-cutting mechanism; 4a-cutter; 4b-fixing member; 4c-transmission belt; 4d-transmission shaft; 4e-first rotary drive device;

[0037] 5-coating roller; 5a-electric heating rod;

[0038] 6-Load-bearing roller;

[0039] 7-mounting bracket; 7a-first clamping plate; 7a1-first arc-shaped surface; 7a2-first heating plate; 7b-second clamping plate; 7b1-second arc-shaped surface; 7b2-rounded corner; 7b3-second heating plate. DETAILED DESCRIPTION

[0040] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0041] like Figures 1 to 3 As shown, this application provides:

[0042] A coating machine for a power battery pole group, comprising a pushing mechanism 1 for directional conveying of the pole group, a film feeding mechanism 2 is arranged on one side of the output end of the pushing mechanism 1, the film feeding mechanism 2 conveys a roll film to a film pulling mechanism 3, the film pulling mechanism 3 conveys the roll film transversely to the output end of the pushing mechanism 1, and the roll film is cut by a cutting mechanism 4, and two sets of parallel coating rollers 5 are arranged at the output end of the pushing mechanism 1, and the coating rollers 5 on the upper and lower sides respectively contact the upper and lower sides of the pole group pushed by the pushing mechanism 1, and the axis of the coating roller 5 is perpendicular to the working end of the pushing mechanism 1. In the conveying direction, an electric heating rod 5a is arranged in the coating roller 5, and a plurality of load-bearing rollers 6 are arranged along the moving direction of the pole group. The load-bearing rollers 6 are used to drive the pole group to move in a directional manner after coating. The coating rollers 5 and the load-bearing rollers 6 on the upper and lower sides are installed on a horizontally arranged mounting bracket 7. A first clamping plate 7a is arranged on both sides of the mounting bracket 7. The first clamping plate 7a is used to merge the rolled films on both sides of the pole group to the middle side. A second clamping plate 7b is arranged on the rear side of the first clamping plate 7a. The second clamping plate 7b is used to press the merged rolled films on both sides onto the two sides of the pole group.

[0043] Based on the above embodiments, the technical problem that the present application aims to solve is how to automatically perform corresponding coating operations on the side surfaces of the pole groups. To this end, the present application uses a pushing mechanism 1 to carry out directional transportation of the pole group after being wrapped and stacked. The output end of the pushing mechanism 1 is provided with coating rollers 5 arranged in parallel up and down. The roll film for coating the pole group is installed on the film feeding mechanism 2. The roll film can be a PVC roll film. The width of the roll film should meet the coating effect on the pole group. The free end of the roll film on the film feeding mechanism 2 is moved laterally to between the output end of the pushing mechanism 1 and the coating roller 5 by the film pulling mechanism 3, and after being cut by the cutting mechanism 4, the width of the roll film has sufficient surplus on both sides of the pole group. The pushing mechanism 1 pushes the pole group between the coating rollers 5, and the pole group drives the roll film to move and wraps the roll film on the upper and lower sides of the pole group at the same time. When the pole group moves between the coating rollers 5, the electric heating rod 5a heats the coating roller 5 so that a certain amount of heat is added to the coating roller 5. When the pole group drives the roll film 40 to pass through the coating roller 5, the coating roller 5 rolls the roll film to make the roll film better attached to the pole group. After passing the coating roller 5, the pushing mechanism 1 can no longer push the pole group, and the directional movement of the pole group after coating is achieved through the relative rotation of the upper and lower load-bearing rollers 6. The coating roller 5 and the load-bearing roller 6 are inserted on the horizontal mounting bracket 7. The coating roller 5 and the load-bearing roller 6 of this embodiment are synchronously moved through the transmission belt. The coating rollers 5 and the load-bearing rollers 6 on the upper and lower sides are connected with the load-bearing rollers 6 through meshing gear transmission, one of the gears is connected to the servo motor for driving, so that only one servo motor is used to drive the rotation of all the coating rollers 5 and the load-bearing rollers 6. When the load-bearing roller 6 drives the pole group to move, the rolled films on both sides of the pole group are merged toward the middle under the action of the first clamping plate 7a, and the merged rolled films are driven by the second clamping plate 7b to adhere to the two sides of the pole group to complete the coating of the two sides of the pole group, which solves the technical problem that the traditional U-shaped coating cannot coat the two sides of the pole group. The load-bearing roller 6 directional transports the coated pole group for subsequent processing such as shelling.

[0044] Further, such as Figure 3 and Figure 4 As shown:

[0045] There are two first clamping plates 7a on each side of the mounting bracket 7. The first clamping plates 7a are provided with a first arcuate surface 7a1 extending from the side facing the pushing mechanism 1 to the middle. The two first clamping plates 7a are installed opposite to each other up and down, and a channel with a gradually narrowing opening is formed between the first arcuate surfaces 7a1. The back side of the first arcuate surface 7a1 is fixedly installed with a first heating plate 7a2.

[0046] Based on the above embodiments, the technical problem that the present application wants to solve is how the first clamping plate 7a can make the coatings on both sides of the pole group merge toward the middle. To this end, two first clamping plates 7a are installed on each side of the mounting bracket 7 of the present application. The first clamping plates 7a are installed relatively up and down to form a channel with a gradually narrowing opening between the first arc-shaped surfaces 7a1. When the pole group drives the rolled film to move into the coating roller 5 and the load-bearing roller 6, the folded rolled film on both sides of the pole group contacts the first arc-shaped surface 7a1 of the first clamping plate 7a. During the movement, it is limited by the first arc-shaped surface 7a1 and gradually merges toward the middle to a fitting state. At this time, the first heating plate 7a2 installed on the first clamping plate 7a heats the first arc-shaped surface 7a1, so that the rolled film on both sides of the pole group is heated and fused to complete the initial coating on both sides of the pole group.

[0047] Further, such as Figures 3 to 5 As shown:

[0048] The mounting bracket 7 has one second clamping plate 7b on each side, and the second clamping plate 7b is fixedly mounted on the rear side of the first clamping plate 7a. The second clamping plate 7b is provided with a second curved surface 7b1 extending downwardly from a side facing the first clamping plate 7a. The horizontal height of one end of the second curved surface 7b1 facing the first clamping plate 7a is the same as the height of the top side of the channel formed by the straight line of the first curved surface 7a1. The second curved surface 7b1 of the second clamping plate 7b is provided with a rounded corner 7b2. The second clamping plate 7b is fixedly mounted with a second heating plate 7b3, and the second heating plate 7b3 is fixedly mounted at a position behind the second curved surface 7b1.

[0049] Based on the above embodiments, the technical problem that the present application aims to solve is how the second clamping plate 7b can make the rolled films on both sides of the pole group fit on both sides of the pole group. The second film roll 7b is provided at the rear side of the first film roll 7a, and the second film roll 7b is provided at the rear side of the first film roll 7a.

[0050] Further, such as Figure 6 As shown:

[0051] The pushing mechanism 1 includes a conveying plate 1a for placing the pole group, and side limit plates 1b are arranged on both sides of the conveying plate 1a. The spacing between the side limit plates 1b matches the width of the pole group. The pushing plate 1c is attached to the upper side of the conveying plate 1a and moves along the extension direction of the side limit plate 1b. The pushing plate 1c is fixedly installed on the working end of the first linear drive device 1d, and the first linear drive device 1d is used to push the pole group and the roll film to move between the coating rollers 5.

[0052] The first linear drive device 1d is fixedly mounted on a mounting seat 1d1 disposed on one side of the conveying plate 1a, and at least two horizontally extending guide rods 1c1 are disposed on the side of the push plate 1c facing the first linear drive device 1d. The guide rod 1c1 is inserted into a guide sleeve 1d2 disposed on the mounting seat 1d1 and at the same axial position as the guide rod 1c1.

[0053] Based on the above embodiments, the technical problem that the present application intends to solve is how the pushing mechanism 1 drives the pole group to move in a directional manner. To this end, the assembled pole group is grabbed and moved to the conveying plate 1a of the pushing mechanism 1 by a mechanical arm. The side limit plates 1b on both sides of the conveying plate 1a can be set at positions that match the size of the required assembled pole group to ensure the limiting effect of the side limit plates 1b on the pole group. The first linear drive device 1d drives the pushing plate 1c to push the pole group toward the coating roller 5. The first linear drive device 1d can be a linear cylinder or an electric push rod, etc. The height of the pushing plate 1c should be ensured to be higher than the height of the pole group, so as to prevent the uniformity of the pole group from changing when the pole group is moved. A guide rod 1c1 is provided on one side of the pushing plate 1c and is inserted into the guide sleeve 1d2 of the mounting seat 1d1 to ensure the stability of the pushing plate 1c when pushing the pole group.

[0054] Further, such as Figures 7 to 9 As shown:

[0055] The film feeding mechanism 2 includes a film roll frame 2a for placing a film roll, and a first conveying roller 2b and a second conveying roller 2c are arranged in parallel on one side of the film roll frame 2a. The axes of the film roll frame 2a, the first conveying roller 2b and the second conveying roller 2c are arranged vertically. The first conveying roller 2b and the second conveying roller 2c rotate relative to each other to convey the film roll passing between the first conveying roller 2b and the second conveying roller 2c. A guide plate 2d is arranged at the discharge end of the first conveying roller 2b and the second conveying roller 2c, and the guide plate 2d extends to the output end of the pushing mechanism 1.

[0056] Based on the above embodiments, the technical problem that this application aims to solve is how the film feeding mechanism 2 conveys the wound film in a directional manner. To this end, the film feeding mechanism 2 of this application places the wound film in a roll shape through a film roll holder 2a. The free end of the film passes through a first conveying roller 2b and a second conveying roller 2c. The relative rotation of the first conveying roller 2b and the second conveying roller 2c drives the film roll holder 2a to rotate to achieve the conveying of the film. After the free end of the film passes through the first conveying roller 2b and the second conveying roller 2c, it moves to the guide plate 2d and adheres to the surface of the guide plate 2d and moves towards the output end of the material pushing mechanism 1.

[0057] Further, as Figures 7 to 9 shown:

[0058] The film pulling mechanism 3 includes fixed suction cups 3a. The fixed suction cups 3a are fixedly installed on one side of the guide plate 2d away from the material pushing mechanism 1 through a first mounting bracket 3a1. There are two fixed suction cups 3a, and the two fixed suction cups 3a are arranged vertically on the upper and lower sides of one end of the guide plate 2d close to the material pushing mechanism 1. Notches 2d1 are provided on the upper and lower sides of the guide plate 2d. The film pulling mechanism 3 further includes movable suction cups 3b. There are two movable suction cups 3b, and the movable suction cups 3b are at the same horizontal height as the fixed suction cups 3a. The movable suction cups 3b are driven by a second linear driving device 3c to move in a horizontal direction perpendicular to the conveying direction of the material pushing mechanism 1. The second linear driving device 3c is fixedly installed on the same side of the guide plate 2d and the material pushing mechanism 1, and the second linear driving device 3c connects the two movable suction cups 3b through a second mounting bracket 3d.

[0059] The second mounting bracket 3d is a "C"-shaped flat plate. The opening of the second mounting bracket 3d faces the material pushing mechanism 1. Elastic mounting plates 3d1 are respectively provided at both ends of the second mounting bracket 3d. The elastic mounting plates 3d1 are elastically connected to the second mounting bracket 3d through a plurality of horizontally arranged springs 3d2. The movable suction cups 3b are fixedly installed on the elastic mounting plates 3d1.

[0060] Based on the above embodiments, the technical problem that the present application wants to solve is how the film pulling mechanism 3 moves the free end of the roll film to the output end side of the pushing mechanism 1. To this end, the film pulling mechanism 3 of the present application is provided with a fixed suction cup 3a and a movable suction cup 3b. The fixed suction cup 3a is fixedly mounted at one end of the guide plate 2d to fix the free end of the moving roll film. The movable suction cup 3b is connected via a second mounting bracket 3d. The opening of the second mounting bracket 3d is arranged toward the pushing mechanism 1 to facilitate the push mechanism 1 and the pole group to avoid when the movable suction cup 3b moves. When working, the second linear drive device 3c drives the movable suction cup 3b to move to a position opposite to the fixed suction cup 3a, that is, the notch 2d1 position of the guide plate 2d. The fixed suction cup 3a stops adsorption, and the movable suction cup 3b adsorbs the free end of the roll film. The second linear drive device 3c drives the movable suction cup 3b to move in a horizontal direction perpendicular to the conveying direction of the pushing mechanism 1 to realize the lateral movement of the roll film. The second linear drive device 3c can It is a linear cylinder or an electric push rod, etc. After the second linear drive device 3c drives the free end of the roll film to a suitable position, the fixed suction cup 3a starts to adsorb the other side of the roll film. At this time, the pushing mechanism 1 pushes the pole group into the coating roller 5. At this time, the pole group pulls the roll film. Since the movable suction cup 3b is fixedly mounted on the elastic mounting plate 3d1 of the second mounting frame 3d, the bending of the spring 3d2 when the pole group pulls the roll film can keep a certain tension on the surface of the pole group and then adhere to the surface of the pole group. The existence of the elastic mounting plate 3d1 can extend the time that the movable suction cup 3b fixes the free end of the roll film, and will not cause excessive pulling on the roll film to cause damage to the roll film, thereby ensuring that the roll film is better adhered to the surface of the pole group. While the pole group pulls the roll film, the cutting mechanism 4 cuts the fixed roll film at the fixed suction cup 3a, so that the roll film smoothly enters the coating roller 5 to complete the film coating.

[0061] Further, such as Figure 7 As shown:

[0062] A horizontally extending second guide rod 3d3 is provided on one side of the second mounting frame 3d facing the second linear drive device 3c. The second guide rod 3d3 is inserted into a guide seat 2d2 coaxial with the second guide rod 3d3 and provided on the guide plate 2d.

[0063] Based on the above embodiment, the present application achieves the stabilization of the moving path of the movable suction cup 3b by inserting the second guide rod 3d3 provided on the second mounting frame 3d on the guide seat 2d2 of the guide plate 2d.

[0064] Further, such as Fig.10 As shown:

[0065] The cutting mechanism 4 includes a cutter 4a fixedly mounted on a fixing member 4b, the blade of the cutter 4a is tilted, the cutter 4a is arranged between the fixed suction cup 3a of the film pulling mechanism 3 and the output end of the pushing mechanism 1, the fixing member 4b is fixedly mounted on a transmission belt 4c, the transmission shafts 4d at both ends of the transmission belt 4c are arranged up and down, the axis of the transmission shaft 4d is arranged horizontally, and the transmission shaft 4d drives the transmission belt 4c through the first rotation drive device 4e to drive the cutter 4a to rotate in a directional manner for cutting.

[0066] Based on the above embodiments, the technical problem that the present application wants to solve is how the cutting mechanism 4 cuts the roll film. To this end, the cutting mechanism 4 adopted by the present application drives the cutter 4a to rotate around the circular track through the transmission belt 4c to achieve cutting of the roll film. The cutter 4a has an inclined blade and is fixedly mounted on the surface of the transmission belt 4c through the fixing member 4b. The transmission shaft 4d of the transmission belt 4c drives the cutter 4a to move from top to bottom to achieve straight-line cutting of the roll film. The cutter 4a is set between the fixed suction cup 3a and the pushing mechanism 1 and ensures that there is a certain margin in the width of the roll film after cutting. The transmission shaft 4d is set at both ends of the transmission belt 4c. The transmission shaft 4d is driven by the first rotation drive device 4e, which can be a servo motor.

[0067] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A coating machine for power battery pole groups, characterized in that: The invention comprises a pushing mechanism (1) for directional conveying of the electrode group, a film feeding mechanism (2) is arranged on one side of the output end of the pushing mechanism (1), the film feeding mechanism (2) conveys the roll film to the film pulling mechanism (3), the film pulling mechanism (3) conveys the roll film transversely to the output end of the pushing mechanism (1), and the roll film is cut by the cutting mechanism (4), and two sets of parallel film coating rollers (5) are arranged at the output end of the pushing mechanism (1), the upper and lower film coating rollers (5) respectively contact the upper and lower sides of the electrode group pushed by the pushing mechanism (1), and the axis of the film coating roller (5) is perpendicular to the conveying direction of the working end of the pushing mechanism (1), and the film coating roller (5) is arranged at the output end of the pushing mechanism (1). An electric heating rod (5a) is arranged inside the roller (5), and a plurality of load-bearing rollers (6) are arranged on the coating roller (5) along the moving direction of the pole group. The load-bearing rollers (6) are used to drive the pole group to move in a directional manner after coating. The coating rollers (5) and the load-bearing rollers (6) on the upper and lower sides are both mounted on a horizontally arranged mounting bracket (7). A first film clamping plate (7a) is arranged on both sides of the mounting bracket (7). The first film clamping plate (7a) is used to merge the rolled films on both sides of the pole group toward the middle side. A second film clamping plate (7b) is arranged on the rear side of the first film clamping plate (7a). The second film clamping plate (7b) is used to press the rolled films merged on both sides onto the two sides of the pole group. The mounting bracket (7) has two first clamping plates (7a) on each side, the first clamping plates (7a) being provided with a first arc-shaped surface (7a1) extending from a side facing the material pushing mechanism (1) to a middle portion, the two first clamping plates (7a) being mounted opposite to each other up and down, a channel with a gradually narrowing opening being formed between the first arc-shaped surfaces (7a1), and a first heating plate (7a2) being fixedly mounted on the back side of the first arc-shaped surface (7a1). The mounting bracket (7) has a second clamping plate (7b) on each side, the second clamping plate (7b) being fixedly mounted on the rear side of the first clamping plate (7a), the second clamping plate (7b) being provided with a second arcuate surface (7b1) extending downwardly from a side facing the first clamping plate (7a), the horizontal height of one end of the second arcuate surface (7b1) facing the first clamping plate (7a) being the same as the height of the top side of the channel formed by the straight line of the first arcuate surface (7a1), the second arcuate surface (7b1) of the second clamping plate (7b) being provided with a rounded corner (7b2), the second clamping plate (7b3) being fixedly mounted on the second clamping plate (7b), the second heating plate (7b3) being fixedly mounted at a position on the rear side of the second arcuate surface (7b1), The pushing mechanism (1) comprises a conveying plate (1a) for placing the electrode group, side limit plates (1b) are arranged on both sides of the conveying plate (1a), the spacing between the side limit plates (1b) matches the width of the electrode group, the pushing plate (1c) is in contact with the upper side of the conveying plate (1a) and moves along the extension direction of the side limit plates (1b), the pushing plate (1c) is fixedly mounted on the working end of the first linear drive device (1d), and the first linear drive device (1d) is used to push the electrode group and the roll film to move between the coating rollers (5). The first linear driving device (1d) is fixedly installed on the mounting seat (1d1) arranged on one side of the conveying plate (1a). On the side of the pusher plate (1c) facing the first linear driving device (1d), there are at least two horizontally extending guide rods (1c1). The guide rods (1c1) are inserted into the guide sleeves (1d2) arranged on the mounting seat (1d1) and having the same axis position as the guide rods (1c1). The film feeding mechanism (2) includes a film reel holder (2a) for placing the rolled film. On one side of the film reel holder (2a), a first conveying roller (2b) and a second conveying roller (2c) are arranged in parallel. The axes of the film reel holder (2a), the first conveying roller (2b), and the second conveying roller (2c) are vertically arranged. The first conveying roller (2b) and the second conveying roller (2c) rotate relatively to convey the rolled film passing between the first conveying roller (2b) and the second conveying roller (2c). At the discharge ends of the first conveying roller (2b) and the second conveying roller (2c), there is a guide plate (2d). The guide plate (2d) extends to the output end of the pusher mechanism (1). The film pulling mechanism (3) includes fixed suction cups (3a). The fixed suction cups (3a) are fixedly installed on the side of the guide plate (2d) away from the pusher mechanism (1) through the first mounting frame (3a1). There are two fixed suction cups (3a), and the two fixed suction cups (3a) are arranged vertically on the upper and lower sides of the upper and lower ends of the guide plate (2d) close to the pusher mechanism (1). Notches (2d1) are arranged on the upper and lower sides of the guide plate (2d). The film pulling mechanism (3) further includes movable suction cups (3b). There are two movable suction cups (3b), and the movable suction cups (3b) are at the same horizontal height as the fixed suction cups (3a). The movable suction cups (3b) are driven by the second linear driving device (3c) to move in the horizontal direction perpendicular to the conveying direction of the pusher mechanism (1). The second linear driving device (3c) is fixedly installed on the same side of the guide plate (2d) as the pusher mechanism (1). The second linear driving device (3c) connects the two movable suction cups (3b) through the second mounting frame (3d). The second mounting frame (3d) is a "C"-shaped flat plate. The opening of the second mounting frame (3d) faces the pusher mechanism (1). Elastic mounting plates (3d1) are respectively arranged at both ends of the second mounting frame (3d). The elastic mounting plates (3d1) are elastically connected to the second mounting frame (3d) through a plurality of horizontally arranged springs (3d2). The movable suction cups (3b) are fixedly installed on the elastic mounting plates (3d1). On the side of the second mounting frame (3d) facing the second linear driving device (3c), there is a horizontally extending second guide rod (3d3). The second guide rod (3d3) is inserted into the guide seat (2d2) arranged on the guide plate (2d) and coaxial with the second guide rod (3d3).

2. A coating machine for power battery pole groups according to claim 1, characterized in that: The cutting mechanism (4) comprises a cutter (4a) fixedly mounted on a fixing member (4b), the blade of the cutter (4a) being arranged at an angle, the cutter (4a) being arranged between a fixed suction cup (3a) of a film-pulling mechanism (3) and an output end of a material-pushing mechanism (1), the fixing member (4b) being fixedly mounted on a transmission belt (4c), transmission shafts (4d) at both ends of the transmission belt (4c) being arranged vertically, the axis of the transmission shaft (4d) being arranged horizontally, and the transmission shaft (4d) driving the transmission belt (4c) through a first rotation driving device (4e) to drive the cutter (4a) to rotate in a directional manner for cutting.

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