Tab gathering equipment

Abstract

The invention discloses tab folding equipment which comprises a pair of folding units, and each folding unit comprises a feeding device and a folding device. The feeding device comprises a first servo electric cylinder, a feeding device base and a base connecting piece; the furling device comprises a furling device base, a second servo electric cylinder arranged on the furling device base, and a pressure head assembly connecting piece in driving connection with the second servo electric cylinder; the folding device base is connected to the base connecting piece; the first servo electric cylinder is in driving connection with the folding device base; guide shaft fixing pieces are arranged on the two sides of the second servo electric cylinder, guide shafts are arranged on the guide shaft fixing pieces, guide shaft seats are arranged on the pressing head assembly connecting piece, and the guide shafts are arranged in the guide shaft seats in a penetrating mode; the concentricity adjusting part is arranged on the gathering device base, the pressure head assembly is arranged between the concentricity adjusting part and the pressure head assembly connecting part, the battery tabs are accurately and orderly stacked and gathered layer by layer through the pressure head assembly, the gathering forming precision of the battery tabs is high, and the gathering guide of the tabs is consistent.

Description

Technical Field

[0001] This patent belongs to the technical field of battery production and manufacturing equipment, and specifically relates to a tab folding device. Background Art

[0002] During the battery manufacturing process, the battery tabs need to be flattened and folded. Currently, mechanical rotational friction or ultrasonic vibration is usually used to flatten and fold the battery tabs. However, the rotational friction or ultrasonic vibration process can easily lead to debris in the tabs, which can easily cause defects in the battery. In view of the above problems, it is urgent to develop a new type of tab folding equipment. Summary of the invention

[0003] The purpose of this patent is to overcome the shortcomings of the prior art and provide a tab folding device to solve the problem that the prior art easily causes the tabs to produce debris. At the same time, the device has a simple structure, high precision in the folding and forming of the battery tabs, and consistent folding guide for the battery tabs, which is beneficial to improving battery quality.

[0004] To achieve the above-mentioned purpose, the present patent adopts the following technical scheme: a tab folding device, comprising a pair of folding units, the folding unit comprising a feeding device and a folding device; specifically, the battery with the tabs to be folded is placed in the middle of a pair of folding devices; the feeding device comprises a first servo electric cylinder, a feeding device base and a base connecting member; a slide rail is arranged on the feeding device base, a slider is arranged under the base connecting member, and the slider is slidably connected to the slide rail; the folding device is arranged on the base connecting member, and the first servo electric cylinder is drivingly connected to the folding device; the folding device is driven by the first servo electric cylinder to move along the slide rail with the slider, thereby driving the corresponding folding device to move along the slide rail toward or away from the battery in the middle with the slider through two relative feeding devices.

[0005] Specifically, the folding device described in the present technical solution includes a folding device base, a second servo electric cylinder arranged on the folding device base, and a pressure head assembly connecting piece driven and connected to the second servo electric cylinder; the folding device base is connected to the base connecting piece; the first servo electric cylinder is driven and connected to the folding device base, thereby driving the corresponding folding device base through two relative first servo electric cylinders to drive the folding device as a whole to move toward or away from the middle battery along the slide rail along the slider; guide shaft fixing pieces are arranged on both sides of the second servo electric cylinder, a guide shaft is arranged on the guide shaft fixing piece, a guide shaft seat is arranged on the pressure head assembly connecting piece, and the guide shaft is passed through the guide shaft seat; a concentricity adjusting piece is arranged on the folding device base, and a pressure head assembly is arranged between the concentricity adjusting piece and the pressure head assembly connecting piece, and the pressure head assembly is used to fold the battery pole ear; thereby, the pressure head assembly connecting piece is driven by the second servo electric cylinder to drive the pressure head assembly to move along the guide shaft.

[0006] Furthermore, the pressure head assembly in the present technical solution includes a push plate, a first pin shaft, a second pin shaft and a pressure head assembly seat; the push plate is connected to the pressure head assembly connecting piece, the push plate has at least one first pin shaft seat, the first pin shaft seat is connected to the first connecting rod through the first pin shaft, the first connecting rod has a second pin shaft seat, the second pin shaft seat is connected to the second connecting rod through the second pin shaft, and the second connecting rod has a connecting part and a pressure head part; the pressure head assembly seat is provided with at least one rotating shaft, and the second connecting rod is rotatably connected to the rotating shaft; the pressure head assembly connecting piece is driven by the second servo electric cylinder to drive the push plate to move, and then the first connecting rod and the second connecting rod are driven in turn to move with the first pin shaft and the second pin shaft respectively through the push plate, and finally the second connecting rod is driven to move with the rotating shaft; specifically, the pressure head assembly connecting piece is driven by the second servo electric cylinder to drive the push plate to move in the direction close to the middle battery, and then the first connecting rod and the second connecting rod are driven in turn through the push plate The connecting rod moves with the first pin and the second pin respectively, and finally drives the second connecting rod to move with the rotating shaft, and the pressure head of the second connecting rod is away from the middle battery; the second servo electric cylinder drives the pressure head assembly connecting piece to drive the push plate to move in the direction away from the middle battery, and then the push plate drives the first connecting rod and the second connecting rod to move with the first pin and the second pin respectively in turn, and finally drives the second connecting rod to move with the rotating shaft, and the pressure head of the second connecting rod is pressed toward the middle battery, thereby realizing orderly stacking and folding of the tabs of the middle battery layer by layer through the pressure head of at least one second connecting rod, and the battery tabs have high forming accuracy and consistent folding guide, which is beneficial to improving battery quality, the number of second connecting rods and the shape of their pressure heads can be adjusted according to the needs of the production process, the equipment has high scalability, and the structure is simple, which solves the problem that the existing technology uses rotational friction or ultrasonic vibration to easily cause debris to form on the tabs.

[0007] Furthermore, the concentricity adjustment member described in the technical solution has a concentricity adjustment member opening for accommodating a battery, thereby driving the corresponding folding device base through two relative first servo electric cylinders to drive the folding device as a whole to move toward the battery in the middle along the slide rail along the slider, thereby the concentricity adjustment member opening on the folding device base corresponds to the battery, and the battery is accommodated in the corresponding concentricity adjustment member opening.

[0008] Furthermore, the press head assembly seat in the technical solution has a press head assembly seat opening corresponding to the concentricity adjustment piece opening, so that the press head assembly corresponds to the battery accommodated in the corresponding concentricity adjustment piece opening.

[0009] Furthermore, a center needle seat is provided on the pressure head assembly seat in the technical solution, and a center needle is provided on the center needle seat. The center needle corresponds to the opening of the pressure head assembly seat, and the center needle is used to correspond to the center of the battery accommodated in the corresponding concentricity adjustment piece opening. The center needle is inserted into the center of the battery, which can effectively protect the center of the battery and achieve precise positioning.

[0010] The present patent provides a terminal ear gathering device, which has the following beneficial effects: two relative feeding devices drive the corresponding gathering devices to move toward the middle battery along the slide rail with the slider, and further drive the push plate to move away from the middle battery in the direction of the pressure head assembly connector through the second servo electric cylinder, and then drive the first connecting rod and the second connecting rod to move with the first pin and the second pin respectively through the push plate, and finally drive the second connecting rod to move with the rotating shaft, and the pressure head of the second connecting rod presses toward the middle battery, thereby accurately stacking and gathering the terminal ears of the middle battery layer by layer through the pressure head of at least one second connecting rod, and the battery terminal ears are gathered and formed with high precision and the battery terminal ears are gathered in a consistent guide, which is beneficial to improving the battery quality, and the number of the second connecting rods and the shape of their pressure heads can be adjusted according to the production process requirements, the equipment has high scalability, and the structure is simple, which solves the problem that the existing technology uses rotational friction or ultrasonic vibration to easily cause the terminal ears to produce debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of this patent, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of this patent. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, including:

[0012] Figure 1 A schematic diagram of the structure of a tab folding device disclosed in an embodiment of the present patent;

[0013] Figure 2 This is a schematic diagram of the structure of a folding unit in a tab folding device disclosed in an embodiment of the present patent;

[0014] Figure 3 This is a schematic diagram of the structure of a pressure head assembly of a tab folding unit in a tab folding device disclosed in an embodiment of the present patent;

[0015] Figure 4 It is a schematic diagram of the cross-sectional structure of a pressure head assembly of a tab folding unit in a tab folding device disclosed in an embodiment of the present patent;

[0016] Explanation of the reference numerals in the figure: 1-folding unit, 2-feeding device, 201-first servo electric cylinder, 202-feeding device base, 203-slide rail, 204-sliding block, 205-base connecting piece, 3-folding device, 301-folding device base, 302-second servo electric cylinder, 303-guide shaft fixing piece, 304-pressing head assembly connecting piece, 305-guide shaft seat, 306-guide shaft, 307-pressing head assembly, 3071-push plate, 3072- Pressure head assembly seat, 30721-pressure head assembly seat opening, 3073-center needle seat, 3074-center needle, 3075-first pin seat, 3076-first pin, 3077-first connecting rod, 3078-second pin seat, 3079-second pin, 30710-second connecting rod, 307101-connecting part, 307102-pressure head, 30711-rotating axis, 308-concentricity adjustment piece, 3081-concentricity adjustment piece opening. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of this patent to clearly and completely describe the technical solutions in the embodiments of this patent. Obviously, the described embodiments are only part of the embodiments of this patent, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0018] See also Figure 1-4 The embodiment of the present patent discloses a tab folding device, comprising a pair of folding units 1, wherein the folding unit 1 comprises a feeding device 2 and a folding device 3; specifically, in the present embodiment, the battery with the tab to be folded is placed in the middle of a pair of folding devices 3; the feeding device 2 comprises a first servo electric cylinder 201, a feeding device base 202 and a base connector 205; a slide rail 203 is arranged on the feeding device base 202, a slider 204 is arranged under the base connector 205, and the slider 204 is slidably connected to the slide rail 203; the folding device 3 is arranged on the base connector 205, and the first servo electric cylinder 201 is drivingly connected to the folding device 3; the specific working principle and implementation method are to drive the folding device 3 to move along the slide rail 203 with the slider 204 through the first servo electric cylinder 201, thereby driving the corresponding folding device 3 to move along the slide rail 203 with the slider 204 through two relative feeding devices 2 to move toward or away from the battery in the middle along the slide rail 203.

[0019] For details, see Figure 2In this embodiment, the folding device 3 comprises a folding device base 301, a second servo electric cylinder 302 arranged on the folding device base 301, and a pressure head assembly connector 304 driven and connected to the second servo electric cylinder 302; the folding device base 301 is connected to the base connector 205; the first servo electric cylinder 201 is driven and connected to the folding device base 301, thereby driving the corresponding folding device base 301 through two opposite first servo electric cylinders 201 to drive the folding device 3 as a whole to move toward or away from the middle battery along the slide rail 203 along with the slider 204; the second servo electric cylinder 3 02 are provided with guide shaft fixing parts 303 on both sides, guide shaft 306 is provided on the guide shaft fixing parts 303, guide shaft 305 is provided on the pressure head assembly connecting part 304, and guide shaft 306 is penetrated in the guide shaft seat 305; a concentricity adjustment part 308 is provided on the base 301 of the folding device, a pressure head assembly 307 is provided between the concentricity adjustment part 308 and the pressure head assembly connecting part 304, and the pressure head assembly 307 is used to fold the battery tabs; thereby, the pressure head assembly connecting part 304 is driven by the second servo electric cylinder 302 to drive the pressure head assembly 307 to move along the guide shaft 306.

[0020] For further information, see Figure 2-4In this embodiment, the pressure head assembly 307 includes a push plate 3071, a first pin shaft 3076, a second pin shaft 3079 and a pressure head assembly seat 3072; the push plate 3071 is connected to the pressure head assembly connector 304, the push plate 3071 has at least one first pin shaft seat 3075, the first pin shaft seat 3075 is connected to the first connecting rod 3077 through the first pin shaft 3076, the first connecting rod 3077 has a second pin shaft seat 3078, the second pin shaft seat 3078 is connected to the second connecting rod 30710 through the second pin shaft 3079, and the second connecting rod 30710 has a connecting portion 307101 and a pressure head portion 307102; The pressure head assembly seat 3072 is provided with at least one rotating shaft 30711, and the second connecting rod 30710 is rotatably connected to the rotating shaft 30711; the pressure head assembly connecting member 304 is driven by the second servo electric cylinder 302 to drive the push plate 3071 to move, and then the first connecting rod 3077 and the second connecting rod 30710 are driven by the push plate 3071 in sequence to move with the first pin 3076 and the second pin 3079 respectively, and finally the second connecting rod 30710 is driven to move with the rotating shaft 30711; the specific working principle and implementation method are as follows: the pressure head assembly connecting member 304 is driven by the second servo electric cylinder 302 to drive the push plate 3071 to move close to the center The push plate 3071 drives the first connecting rod 3077 and the second connecting rod 30710 to move along with the first pin 3076 and the second pin 3079 respectively through the push plate 3071, and finally drives the second connecting rod 30710 to move along with the rotating shaft 30711, and the pressure head 307102 of the second connecting rod 30710 moves away from the middle battery; the second servo electric cylinder 302 drives the pressure head assembly connector 304 to drive the push plate 3071 to move in the direction away from the middle battery, and then drives the first connecting rod 3077 and the second connecting rod 30710 to move along with the first pin 3076 and the second pin 3079 respectively through the push plate 3071. 9 movement, and finally drives the second connecting rod 30710 to move with the rotating shaft 30711, and the pressing head 307102 of the second connecting rod 30710 presses against the middle battery, thereby realizing orderly stacking and folding of the tabs of the middle battery layer by layer through at least one pressing head 307102 of the second connecting rod 30710, and the forming precision of the tabs is high and the folding guide of the tabs is consistent, which is beneficial to improving the quality of the battery, and the number of the second connecting rods and the shape of the pressing heads can be adjusted according to the needs of the production process. The equipment has high scalability and a simple structure, which solves the problem that the existing technology uses rotational friction or ultrasonic vibration to easily cause the tabs to produce debris.

[0021] For further information, see Figure 2In this embodiment, the concentricity adjustment member 308 has a concentricity adjustment member opening 3081 for accommodating batteries. The size and shape of the concentricity adjustment member opening can be adjusted according to the production process requirements. Thus, the corresponding folding device base 301 is driven by two relative first servo electric cylinders 201 to drive the folding device 3 as a whole to move toward the battery in the middle along the slide rail 203 along the slider 204. Thus, the opening of the concentricity adjustment member 3081 on the folding device base 301 corresponds to the battery, and the battery is accommodated in the corresponding concentricity adjustment member opening 3081.

[0022] For further information, see Figure 2-4 In this embodiment, the press head assembly seat 3072 has a press head assembly seat opening 30721 corresponding to the concentricity adjustment piece opening 3081. The size and shape of the press head assembly seat opening can be adjusted according to the production process requirements, so that the press head assembly 307 corresponds to the battery accommodated in the corresponding concentricity adjustment piece opening 3081, and then the battery ear is retracted through the press head assembly 307.

[0023] For further information, see Figure 2-4 In this embodiment, a center needle seat 3073 is provided on the pressure head assembly seat 3072 described in this technical solution, and a center needle 3074 is provided on the center needle seat 3073. The center needle 3074 corresponds to the pressure head assembly seat opening 30721. The size and shape of the center needle can be adjusted according to the production process requirements. The center needle 3074 is used to correspond to the center of the battery accommodated in the corresponding concentricity adjustment piece opening 3081. The center needle is inserted into the center of the battery, which can effectively protect the battery center and achieve precise positioning.

[0024] The tab folding device provided in the above-mentioned embodiment drives the corresponding folding device to move toward the middle battery along the slide rail with the slider through two relative feeding devices, and further drives the push plate to move in the direction away from the middle battery through the second servo electric cylinder to drive the pressure head assembly connecting part, and then drives the first connecting rod and the second connecting rod to move with the first pin and the second pin respectively through the push plate, and finally drives the second connecting rod to move with the rotating shaft, and the pressure head of the second connecting rod presses toward the middle battery, thereby accurately stacking and folding the tabs of the middle battery layer by layer through the pressure head of at least one second connecting rod, and the battery tab folding forming accuracy is high and the battery tab folding guide is consistent, which is beneficial to improving the battery quality. The number of second connecting rods and the shape of their pressure heads can be adjusted according to the production process requirements. The equipment has high scalability and a simple structure, which solves the problem that the existing technology uses rotational friction or ultrasonic vibration to easily cause the tabs to produce debris.

[0025] The above description is only an implementation method of this patent, and does not limit the patent scope of this patent. Any equivalent structure or equivalent process transformation made using the contents of this patent specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of this patent.

Claims

1. A tab folding device, comprising a pair of folding units (1), wherein the folding unit (1) comprises a feeding device (2) and a folding device (3); the feeding device (2) comprises a first servo electric cylinder (201), a feeding device base (202) and a base connecting member (205); a slide rail (203) is arranged on the feeding device base (202), a slider (204) is arranged under the base connecting member (205), and the slider (204) is slidably connected to the slide rail (203); the folding device (3) is arranged on the base connecting member (205), and the first servo electric cylinder (201) is drivingly connected to the folding device (3); the folding device (3) is driven by the first servo electric cylinder (201) to move along the slide rail (203) along with the slider (204); the characteristics are: The folding device (3) comprises a folding device base (301), a second servo electric cylinder (302) arranged on the folding device base (301), and a pressure head assembly connecting piece (304) drivingly connected to the second servo electric cylinder (302); the folding device base (301) is connected to the base connecting piece (205); the first servo electric cylinder (201) is drivingly connected to the folding device base (301); guide shaft fixing pieces (303) are arranged on both sides of the second servo electric cylinder (302), and the guide shaft fixing pieces (303) are A guide shaft (306) is arranged on the pressure head assembly connecting piece (304), a guide shaft seat (305) is arranged on the pressure head assembly connecting piece (304), and the guide shaft (306) is inserted into the guide shaft seat (305); a concentricity adjustment piece (308) is arranged on the folding device base (301), and a pressure head assembly (307) is arranged between the concentricity adjustment piece (308) and the pressure head assembly connecting piece (304); the pressure head assembly connecting piece (304) is driven by the second servo electric cylinder (302) to drive the pressure head assembly (307) to move along the guide shaft (306).

2. The tab folding device according to claim 1, characterized in that: The pressure head assembly (307) comprises a push plate (3071), a first pin shaft (3076), a second pin shaft (3079) and a pressure head assembly seat (3072); the push plate (3071) is connected to the pressure head assembly connecting member (304); the push plate (3071) has at least one first pin shaft seat (3075); the first pin shaft seat (3075) is connected to a first connecting rod (3077) via a first pin shaft (3076); the first connecting rod (3077) has a second pin shaft seat (3078); the second pin shaft seat (3078) is connected to a second connecting rod (30710) via a second pin shaft (3079); the second connecting rod (30710) The invention comprises a connecting part (307101) and a pressing part (307102); the pressing part assembly seat (3072) is provided with at least one rotating shaft (30711), and the second connecting rod (30710) is rotatably connected to the rotating shaft (30711); the pressing part assembly connecting member (304) is driven by the second servo electric cylinder (302) to drive the push plate (3071) to move, and then the push plate (3071) drives the first connecting rod (3077) and the second connecting rod (30710) to move respectively with the first pin shaft (3076) and the second pin shaft (3079), and finally drives the second connecting rod (30710) to move with the rotating shaft (30711).

3. The tab folding device according to claim 2, characterized in that: The concentricity adjustment member (308) has a concentricity adjustment member opening (3081).

4. The tab folding device according to claim 3, characterized in that: The pressure head assembly seat (3072) has a pressure head assembly seat opening (30721) corresponding to the concentricity adjustment piece opening (3081).

5. The tab folding device according to claim 4, characterized in that: The pressure head assembly seat (3072) is provided with a center needle seat (3073), and the center needle seat (3073) is provided with a center needle (3074), and the center needle (3074) corresponds to the pressure head assembly seat opening (30721).

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