Cylindrical battery pole end half-membrane sleeving device

Abstract

The invention belongs to the technical field of lithium battery production, and particularly relates to a cylindrical battery pole end half film sleeving device which comprises a rack large plate, a feeding and discharging mechanism, a push rod mechanism for pushing a battery to a rotating platform, a transplanting mechanism for rotating and positioning the battery, a battery film sleeving mechanism, a battery discharging mechanism, a film sleeving mechanism support and a rotating support mechanism. According to the invention, after thermal shrinkage, the protection on the end face of the positive electrode is ensured, and the code spraying requirement is met; the use amount of materials is effectively saved, so that the production and purchase cost is reduced; the problem of non-uniform thermal shrinkage caused in the production process of the battery cell membrane is solved, and the customization requirement of a user for tagging on a steel shell or membrane can be met; safety protection of an effective physical level is provided for the junction sealing end of the positive electrode and the negative electrode of the battery, and the safety risk caused by short circuit due to collision under the condition that the formation and capacity grading end is electrified and transplanted is avoided; during steel shell code spraying, a code scanning gun reads and stores a code assigned on the sleeve film during use, and battery data can be conveniently traced during production.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery production, and in particular to an extreme sleeve half-membrane device for a cylindrical battery. Background Art

[0002] In the prior art, a lithium battery is a type of battery that uses lithium metal or lithium alloy as the positive / negative electrode material and a non-aqueous electrolyte solution. It is a rechargeable battery that mainly relies on the movement of lithium ions between the positive and negative electrodes to work; In the lithium battery manufacturing process, the existing lithium-ion cylindrical batteries are generally produced in the form of an integral sleeve film. In the actual production process, there are the following problems: 1) The amount of casing materials used is large, and the production cost is high; 2) The amount of material used for a single cell casing is relatively large, which can easily cause uneven heat shrinkage and lead to material waste; 3) Unable to meet customers’ personalized demands for battery appearance.

[0003] Therefore, the present application proposes a cylindrical battery extreme shell half-membrane device to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art, namely, large amount of casing material is used, high production cost investment; large amount of casing material is used for a single battery cell, which easily causes uneven heat shrinkage and leads to material waste; and failure to meet customers' personalized needs for battery appearance. A cylindrical battery extreme casing half-film device is proposed to solve the shortcomings of the prior art, namely, large amount of casing material is used, high production cost investment; large amount of casing material is used for a single battery cell, which easily causes uneven heat shrinkage and leads to material waste; and failure to meet customers' personalized needs for battery appearance.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A cylindrical battery extreme end film sleeve half device, including a frame plate, a loading and unloading mechanism, a battery push rod mechanism to push the battery to a rotating platform, a battery rotation and positioning transplanting mechanism, a battery film sleeve mechanism, a battery unloading mechanism, a film sleeve mechanism bracket, a rotating bracket mechanism, a film sleeve material belt and a material belt unwinding mechanism, and the cylindrical battery extreme end film sleeve half device also includes: It is composed of an unwinding bracket, a material tray, an unwinding motor, a film material belt, a rotating bracket mechanism, a rotating mechanism bracket, a No. 1 rotating mechanism large plate, a feeding platform fixed plate, a feeding cylinder, a guide rod, a linear bearing, and a feeding clamp. The feeding platform fixed plate, the feeding cylinder, the guide rod, the linear bearing, and the feeding clamp constitute a battery cell feeding mechanism.

[0006] As a preferred solution of the present invention, the loading and unloading mechanism includes a flow wire support, a wire body profile, a synchronous wheel fixing frame, a conveyor belt, a battery clamp, a conveyor motor and a profile support; The battery clamp is fixedly connected to the conveyor belt by screws, the wire profile is fixedly connected to the profile bracket, a synchronous wheel is rotatably connected in a synchronous wheel fixing frame, and the synchronous wheel fixing frame is fixedly connected to the profile bracket, the conveying motor is fixedly connected to the synchronous wheel through a coupling, a No. 2 rotating mechanism large plate is arranged in the synchronous wheel fixing frame, and a film-coated battery is arranged on the conveyor belt.

[0007] As a preferred solution of the present invention, the push rod mechanism for pushing the battery to the rotating platform includes a battery pushing foot, a second linear guide rail, a top plate, a cylinder fixing plate and a propulsion cylinder; The battery pushing foot is fixedly connected to the push rod of the propulsion cylinder, the pushing device slides on the top of the No. 2 linear guide rail, and the propulsion cylinder is fixedly connected in the cylinder fixing plate, so that the push rod mechanism for pushing the battery to the rotating platform is fixedly connected to the line profile.

[0008] As a preferred solution of the present invention, the battery rotation positioning transplanting mechanism includes a servo motor, a motor support, a protective cover, a rotating platform bracket, a battery magnetic transplanting fixture, a support rod, an axis support frame, a bearing, a spindle support frame, a battery fixture connecting plate, two fixture connecting plates and a spindle; The main shaft is fixedly connected to the main shaft support frame, the main shaft support frame is fixedly connected to the two clamp connecting plates by screws, the support rod is fixedly connected to the battery clamp connecting plate, the battery magnetic transplanting clamp is fixedly connected to the axial side center of the battery clamp connecting plate by screws, the main shaft is fixedly connected to the bearing, and the main shaft and the bearing are fixedly connected to the shaft support frame, the main shaft is fixedly connected to the rotating platform bracket by screws, the battery rotation positioning transplanting mechanism is set on the No. 1 rotating mechanism large plate by screws, the servo motor output shaft is provided with a synchronous pulley, and the synchronous pulley cooperates with the main shaft.

[0009] As a preferred solution of the present invention, the battery film sleeve mechanism includes a No. 1 battery push rod, a No. 2 battery push rod, a push rod bracket, a No. 1 linear guide rail, a battery transplanting positioning sleeve, a push rod positioning sleeve connecting plate, a film sleeve cutting mechanism, a hollow magnetic ring mechanism, a bracket plate, a No. 1 rubber wheel, a rubber wheel bracket, a cylinder, a sleeve rod, a No. 2 rubber wheel, a film sleeve drive motor, a gear and a bracket; The No. 2 rubber wheel, the film covering driving motor and the gear constitute the main drive of the film covering mechanism material belt, and the No. 1 rubber wheel, the rubber wheel bracket and the cylinder constitute the sleeve rod and the material belt stroke change adjustable pressing mechanism. Beneficial Effects

[0010] In the present invention, after heat shrinkage, the protection of the positive terminal surface is guaranteed and the requirements for coding are met; the use of materials is effectively saved, thereby reducing the production and procurement costs; the uneven heat shrinkage caused by the battery film in the production process is solved, and the user's customization requirements for coding on the steel shell or the film can be met; it is ensured that the sealed end where the positive and negative poles of the battery meet provides effective physical safety protection, avoiding the safety risks caused by short circuits caused by collisions during the live transfer of the chemical component end; when the steel shell is sprayed with code, the code on the sleeve film is read and stored by a barcode scanner during use, which is convenient for production and tracing of battery data. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a two-dimensional view of a half-membrane mechanism for a battery terminal sleeve of the present invention; Figure 2 It is an attempt to illustrate the mechanism of the present invention; Figure 3 A top view of the mechanism of the present invention; Figure 4 It is a schematic diagram of the push rod mechanism for pushing the battery onto the rotating platform of the present invention; Figure 5 It is a schematic diagram of the battery rotation positioning transplanting mechanism of the present invention; Figure 6 It is a schematic diagram of the battery casing mechanism of the present invention; Figure 7 It is a schematic diagram of the battery conveying line mechanism of the present invention; Figure 8 It is a schematic diagram of the film-encased battery of the present invention.

[0012] In the figure: 1, frame plate; 2, material strip unwinding mechanism; 21, unwinding bracket; 22, material tray 23, unwinding motor; 3, film strip; 4, rotating bracket frame; 5, rotating bracket mechanism; 51, rotating mechanism bracket; 52, rotating mechanism plate; 6, battery unloading mechanism; 61, unloading platform fixing plate; 62, unloading cylinder; 63, guide rod; 64, linear bearing; 65, unloading clamp; 7, film mechanism; 71, one No. 1 battery push rod; 717, No. 2 battery push rod; 72, push rod bracket; 73, linear guide; 74, battery transplanting positioning sleeve; 75, push rod positioning sleeve connecting plate; 76, film cutting mechanism; 77, hollow magnetic ring mechanism; 78, bracket plate; 79, No. 1 rubber wheel; 710, rubber wheel bracket; 711, cylinder; 712, sleeve rod; 713, No. 2 rubber wheel; 714, film driving motor; 715, gear; 716, support Frame; 8, battery rotation positioning transplanting mechanism; 81, servo motor; 82, motor support; 83, protective cover; 84, rotating platform bracket; 85, battery with magnetic transplanting fixture; 87, support rod; 88, shaft support frame; 89, bearing; 810, spindle support frame; 811, battery fixture connecting plate; 812, fixture connecting plate; 813, spindle; 9, battery push rod mechanism to the rotating platform; 91, battery push foot ; 92. Linear guide; 93. Top plate; 95. Cylinder fixing plate; 96. Propelling cylinder; 10. Loading and unloading mechanism; 101. Flow line bracket; 102. Line profile; 103. Synchronous wheel fixing frame; 104. Rotating mechanism large plate; 105. Film-coated battery; 106. Conveyor belt; 107. Battery clamp; 108. Conveying motor; 109. Unfilmed battery; 1010. Synchronous wheel; 1011. Profile bracket. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example

[0014] Reference Figure 1-Figure 8 A cylindrical battery extreme end film device includes a frame plate 1, a loading and unloading mechanism 10, a battery push rod mechanism 9 to push the battery to the rotating platform, a battery rotation and positioning transplanting mechanism 8, a battery film mechanism 7, a battery unloading mechanism 6, a film mechanism bracket 4, a rotating bracket mechanism 5, a film material strip 3 and a material strip unwinding mechanism 2. The cylindrical battery extreme end film device also includes: The unwinding bracket 21, the material tray 22, the unwinding motor 23, the film sleeve material belt 3, the rotating bracket mechanism 5, the rotating mechanism bracket 51, the No. 1 rotating mechanism large plate 52, the unloading platform fixed plate 61, the unloading cylinder 62, the guide rod 63, the linear bearing 64, and the unloading clamping claw 65 constitute the battery cell unloading mechanism. Through the coordinated work of these components, an efficient and accurate workflow for the battery cell sleeve rod is realized.

[0015] As a preferred solution of the present invention, the loading and unloading mechanism 10 includes a flow line support 101, a line profile 102, a synchronous wheel fixing frame 103, a conveying belt 106, a battery clamp 107, a conveying motor 108 and a profile support 1011; The battery clamp 107 is fixedly connected to the conveyor belt 106 by screws, the line profile 102 is fixedly connected to the profile bracket 1011, the synchronous wheel 1010 is rotatably connected in the synchronous wheel fixing frame 103, and the synchronous wheel fixing frame 103 is fixedly connected to the profile bracket 1011, the conveying motor 108 is fixedly connected to the synchronous wheel 1010 through a coupling, a No. 2 rotating mechanism large plate 104 is provided in the synchronous wheel fixing frame 103, a film battery 105 is provided on the conveyor belt 16, and the conveying motor 108 is connected to the synchronous wheel 1011 via a coupling, together forming a complete flow-pull transmission type transplanting conveyor line 10.

[0016] As a preferred solution of the present invention, the push rod mechanism 9 for pushing the battery to the rotating platform includes a battery pushing foot 91, a second linear guide rail 92, a top plate 93, a cylinder fixing plate 95 and a pushing cylinder 96; The battery pushing foot 91 is fixedly connected to the push rod of the pushing cylinder 96, the pushing device 91 slides the top of the No. 2 linear guide rail 92, and the pushing cylinder 96 is fixedly connected in the cylinder fixing plate 95, so that the battery is pushed to the rotating platform and the push rod mechanism 9 is fixedly connected to the wire body profile 102.

[0017] As a preferred solution of the present invention, the battery rotation positioning transplanting mechanism 8 includes a servo motor 81, a motor support 82, a protective cover 83, a rotating platform bracket 84, a battery magnetic transplanting fixture 85, a support rod 87, an axis support frame 88, a bearing 89, a spindle support frame 810, a battery fixture connecting plate 811, two fixture connecting plates 812 and a spindle 813; The spindle 813 is fixedly connected to the spindle support frame 810, and the spindle support frame 810 is fixedly connected to the two clamp connecting plates 812 by screws. In order to enhance the structural strength and stability, the support rod 87 is fixedly connected to the battery clamp connecting plate 811, the battery magnetic transplanting fixture 85 is fixedly connected to the axial edge center of the battery clamp connecting plate 811 by screws, the spindle 813 is fixedly connected to the bearing 89, and the spindle 813 and the bearing 89 are fixedly connected to the shaft support frame 88, the spindle 813 is fixedly connected to the rotating platform bracket 84 by screws, the battery rotation positioning transplanting mechanism 8 is set on the No. 1 rotating mechanism large plate 52 by screws, and the servo motor 81 output shaft is provided with a synchronous pulley, and the synchronous pulley is matched with the spindle 813.

[0018] As a preferred solution of the present invention, the battery film sleeve mechanism 7 includes a No. 1 battery push rod 71, a No. 2 battery push rod 717, a push rod bracket 72, a No. 1 linear guide rail 73, a battery transplanting positioning sleeve 74, a push rod positioning sleeve connecting plate 75, a film sleeve cutting mechanism 76, a hollow magnetic ring mechanism 77, a bracket plate 78, a No. 1 rubber wheel 79, a rubber wheel bracket 710, a cylinder 711, a sleeve rod 712, a No. 2 rubber wheel 713, a film sleeve drive motor 714, and gears 715 and 716 brackets; The second rubber wheel 713, the film covering driving motor 714 and the gear 715 constitute the main drive of the film covering mechanism material belt, and the first rubber wheel 79, the rubber wheel bracket 710 and the cylinder 711 constitute the sleeve rod 712 and the material belt stroke change adjustable clamping mechanism.

[0019] It should be noted that the specific types of motors, electric push rods and detection probes to be used are selected by relevant technical personnel familiar with the field, and the above motors, electric push rods and detection probes are all existing technologies and will not be elaborated in this solution.

[0020] The working principle of the present invention is as follows: when the system detects that the battery holder 107 carries an uncoated battery 109, the conveying motor 108 is started to smoothly transport the uncoated battery 109 to the battery rotation positioning transplanting mechanism 8 for further processing. This design not only ensures that the transplanting operation is completed in a flat state, but also ensures the transmission stability and high-precision positioning requirements during the entire process. The entire battery is pushed out to the battery rotation positioning transplanting mechanism 8, and the battery is pushed out to the rotating platform push rod mechanism 9 and is connected and fixed with the wire body profile 102. When the system detects that the uncoated battery 109 has been accurately positioned on the battery rotation positioning transplanting mechanism 8 and the upper and lower After the film-free battery 109 is moved between the material mechanisms, the propulsion cylinder 96 will be started, and the unfilmed battery 109 will be pushed to the battery with magnetic transplanting fixture 85 of the battery rotation positioning transplanting mechanism 8. This design scheme not only fully considers the requirements of action stroke and accuracy, but also takes into account the cost-effectiveness ratio, and realizes an efficient and economical operation mode. After the unfilmed battery 109 moves to the half-film waiting position, the battery transplanting positioning sleeve 74 and the waiting unfilmed battery 109 complete positioning, the No. 1 battery push rod 71 pushes the waiting unfilmed battery 109 into the battery transplanting positioning sleeve 74, and the No. 2 battery push rod 717 pushes the battery transplanting positioning sleeve 74 into the battery with film sleeve position, and at the same time The main drive composed of the second rubber wheel 713, the film sleeve driving motor 714 and the gear 715 drives the second rubber wheel 713 to push the film sleeve material belt 3 forward through the friction between the film sleeve driving motor 714 and the film sleeve material belt 3. The first rubber wheel 79, the rubber wheel bracket 710 and the cylinder 711 constitute a clamping mechanism with adjustable travel of the sleeve rod and the material belt. When the sleeve rod 712 is clamped, the material belt 3 can still move forward through the rotation of the first rubber wheel 79. The hollow magnetic ring mechanism 77 uses the principle of mutual repulsion of the same magnetic poles to keep the sleeve rod 712 hollow and suspended at all times. The two processes are carried out simultaneously. At the docking point, the front section of the battery transplanting and positioning sleeve 74 has an 18° chamfer, and the film sleeve is not sleeved. The battery 109 is directly inserted into the expanded material strip 3, at which time 1 / 2 of it is still in the battery transplanting and positioning sleeve 74, and then the sleeve film cutting mechanism 76 motor is started to drive the cam blade to rotate and cut the material strip, and the sleeve film process is completed; the working principle of this station is simple, and the cutting length of the sleeve film material strip 3 can be set. After the battery cell is sleeved, the unloading cylinder 62 extends, and the unloading claw 65 clamps the battery cell. At the same time, the battery transplanting and positioning sleeve 74 and the No. 1 battery push rod 71 and the No. 2 battery push rod 717 are retracted to the replacement sleeve film preparation station to complete the next sleeve film docking. After the sleeve film is completed, the battery cell is placed in the unloading battery fixture 107 by the unloading mechanism and transplanted to complete the entire process flow of the half-sleeve film.

[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cylindrical battery extreme sleeve half membrane device, characterized in that: The device comprises a frame plate (1), a loading and unloading mechanism (10), a push rod mechanism (9) for pushing batteries onto a rotating platform, a battery rotationally positioned transplanting mechanism (8), a battery film coating mechanism (7), a battery unloading mechanism (6), a film coating mechanism support (4), a rotating support mechanism (5), a film coating material strip (3) and a material strip unwinding mechanism (2). The cylindrical battery extreme half-film coating device also comprises: An unwinding bracket (21), a material tray (22), an unwinding motor (23), a film material belt (3), a rotating bracket mechanism (5), a rotating mechanism bracket (51), a No. 1 rotating mechanism large plate (52), a material unloading platform fixed plate (61), a material unloading cylinder (62), a guide rod (63), a linear bearing (64), and a material unloading clamp (65), wherein the material unloading platform fixed plate (61), the material unloading cylinder (62), the guide rod (63), the linear bearing (64), and the material unloading clamp (65) constitute a battery cell unloading mechanism.

2. A cylindrical battery extreme sleeve half membrane device according to claim 1, characterized in that: The loading and unloading mechanism (10) comprises a flow-drawing wire support (101), a wire profile (102), a synchronous wheel fixing frame (103), a conveying belt (106), a battery clamp (107), a conveying motor (108) and a profile support (1011); The battery clamp (107) is fixedly connected to the conveying belt (106) by means of screws, the wire profile (102) is fixedly connected to the profile bracket (1011), a synchronous wheel (1010) is rotatably connected in the synchronous wheel fixing frame (103), and the synchronous wheel fixing frame (103) is fixedly connected to the profile bracket (1011), the conveying motor (108) is fixedly connected to the synchronous wheel (1010) by means of a coupling, a second rotating mechanism large plate (104) is provided in the synchronous wheel fixing frame (103), and a film-encapsulated battery (105) is provided on the conveying belt (16).

3. A cylindrical battery extreme sleeve half membrane device according to claim 1, characterized in that: The battery pushing mechanism (9) to the rotating platform comprises a battery pushing foot (91), a second linear guide rail (92), a top plate (93), a cylinder fixing plate (95) and a pushing cylinder (96); The battery pushing foot (91) is fixedly connected to the push rod of the pushing cylinder (96); the pushing device (91) slides on the top of the second linear guide rail (92); the pushing cylinder (96) is fixedly connected in the cylinder fixing plate (95), and the push rod mechanism (9) for pushing the battery to the rotating platform is fixedly connected to the line body profile (102).

4. A cylindrical battery extreme sleeve half membrane device according to claim 1, characterized in that: The battery rotation positioning transplanting mechanism (8) comprises a servo motor (81), a motor support (82), a protective cover (83), a rotating platform support (84), a battery magnetic transplanting fixture (85), a support rod (87), an axis support frame (88), a bearing (89), a spindle support frame (810), a battery fixture connecting plate (811), two fixture connecting plates (812) and a spindle (813); The main shaft (813) is fixedly connected to the main shaft support frame (810), and the main shaft support frame (810) is fixedly connected to two clamp connection plates (812) by screws. The support rod (87) is fixedly connected to the battery clamp connection plate (811), and the battery magnetic transplanting clamp (85) is fixedly connected to the axial side center of the battery clamp connection plate (811) by screws. The main shaft (813) is fixedly connected to the bearing (89), and the main shaft (813) and the bearing (89) are fixedly connected to the shaft support frame (88). The main shaft (813) is fixedly connected to the rotating platform bracket (84) by screws. The battery rotation positioning transplanting mechanism (8) is set on the No. 1 rotating mechanism large plate (52) by screws. The output shaft of the servo motor (81) is provided with a synchronous pulley, and the synchronous pulley cooperates with the main shaft (813).

5. A cylindrical battery extreme sleeve half membrane device according to claim 1, characterized in that: The battery film casing mechanism (7) comprises a No. 1 battery push rod (71), a No. 2 battery push rod (717), a push rod bracket (72), a No. 1 linear guide rail (73), a battery transplanting positioning sleeve (74), a push rod positioning sleeve connecting plate (75), a film casing cutting mechanism (76), a hollow magnetic ring mechanism (77), a bracket plate (78), a No. 1 rubber wheel (79), a rubber wheel bracket (710), a cylinder (711), a casing rod (712), a No. 2 rubber wheel (713), a film casing driving motor (714), a gear (715) and a (716) bracket; The second rubber wheel (713), the film covering drive motor (714) and the gear (715) constitute the main drive of the film covering mechanism material belt, and the first rubber wheel (79), the rubber wheel bracket (710) and the cylinder (711) constitute the sleeve rod (712) and the material belt stroke adjustable clamping mechanism.

Images