L-type battery film peeling machine and film peeling method

Abstract

The present invention discloses an L-type battery film tearing machine and a film tearing method. The L-type battery film tearing machine includes a feeding mechanism, a feeding mechanism, a battery transfer mechanism and two film tearing working mechanisms. The film tearing working mechanism includes a film tearing station, and the film tearing station is provided with a film tearing mechanism. The film tearing mechanism includes a film tearing platform and two film tearing assemblies respectively arranged on the left and right sides of the film tearing platform. When tearing the film, the film tearing assembly far away from the pole ear of the L-type battery tears the film of the L-type battery; the film tearing assembly includes a first translation module, a first lifting module arranged on the first translation module, a first rotating module arranged on the first lifting module, a clamp cylinder arranged on the first rotating module, and a long strip clamping claw arranged on the clamp cylinder. The present invention is suitable for film tearing of L-type batteries, and can ensure that the force on the surface of the L-type battery is uniform when tearing the film, and avoids the problems of dark lines, wrinkles, swelling, etc. on the surface of the L-type battery after film tearing.

Description

Technical Field

[0001] The present invention relates to the technical field of battery film tearing equipment, and in particular to an L-shaped battery film tearing machine and a film tearing method. Background Art

[0002] Lithium batteries are a type of battery that can be charged and discharged multiple times and recycled. They are the mainstream of batteries now because of their large capacity. With the development of new energy companies, the demand for lithium batteries is increasing, and it is particularly important to improve the production efficiency of lithium batteries. However, the chemical properties of lithium metal are very active, and the processing, storage, and use of lithium metal have very high environmental requirements. In the production process of lithium batteries, in order to avoid scratching the lithium battery, a protective film is usually attached to the surface of the lithium battery. After the production is completed, the protective film is torn off for finished product testing.

[0003] A film tearing method and a film tearing mechanism and a film tearing device using the Chinese patent with application number 202010806095.1 disclose a film tearing method using tape, in which one end of the tape is attached to one end of one pole ear of the battery, and the other end of the tape is attached to one end of the other pole ear of the battery, and both ends of the tape are exposed to the battery. A robot clamps the exposed parts at both ends of the tape and flips the tape about 180°, thereby removing the upper film. Then the robot moves at a uniform speed toward the tail end of the battery, tears off the upper film, and then tears off the lower film to peel off the protective film from the battery. However, the above-mentioned film tearing method is only applicable to conventional square lithium batteries, but not to L-type batteries. The reason is that the pole ear of the L-type battery is located on the side of its end, and the pole ear will block the robot from clamping the tape on that side, so that the robot can only clamp the tape on the side away from the pole ear, and the film can only be torn on one side. When tearing the film on one side, the adhesion force overcome by various parts of the battery is uneven, which can easily cause the battery surface to swell, causing the battery surface to bulge, resulting in battery failure.

[0004] Therefore, it is urgent to develop a new film-tearing method and equipment for tearing the film of L-type batteries. Summary of the invention

[0005] In order to overcome the problem that the existing film tearing method is not applicable to L-type batteries, the present invention provides an L-type battery film tearing machine and a film tearing method.

[0006] The technical solution of the present invention is as follows:

[0007] On the one hand, the present invention provides an L-type battery film tearing machine, comprising a loading mechanism, a unloading mechanism, a battery transfer mechanism and two film tearing working mechanisms, wherein the loading mechanism moves the L-type battery on the loading line to the two film tearing working mechanisms for film tearing processing, the unloading mechanism moves the L-type battery after film tearing to the unloading line, and the battery transfer mechanism drives the L-type battery to move between the two film tearing working mechanisms.

[0008] The film-tearing working mechanism comprises a film-tearing station, on which a film-tearing mechanism is provided, wherein the film-tearing mechanism comprises a film-tearing platform and two film-tearing assemblies respectively arranged on the left and right sides of the film-tearing platform, and when tearing the film, the film-tearing assembly far away from the tab of the L-shaped battery tears the film of the L-shaped battery;

[0009] The film tearing assembly includes a first translation module, a first lifting module arranged on the first translation module, a first rotation module arranged on the first lifting module, a clamp cylinder arranged on the first rotation module, and a long clamping claw arranged on the clamp cylinder.

[0010] Furthermore, the film tearing mechanism also includes two auxiliary clamping assemblies respectively arranged at the left rear and right rear of the film tearing platform, and the two auxiliary clamping assemblies are used to assist the battery transfer mechanism to tear the lower film from the L-shaped battery.

[0011] Furthermore, the auxiliary clamping assembly includes a second lifting module and a first finger cylinder arranged on the second lifting module.

[0012] Furthermore, the waste film clamping assembly includes a second rotating module and a second finger cylinder disposed on the second rotating module.

[0013] Furthermore, the film tearing mechanism also includes a waste film clamping assembly arranged at the lower rear of the film tearing platform, which is used to recover the protective film after peeling.

[0014] Furthermore, the film tearing working mechanism also includes a glue sticking station and a glue pressing station. The glue sticking station is provided with a glue preparation and glue sticking mechanism, and the glue preparation and glue sticking mechanism is used to stick the tape to the end edge of the upper film of the L-type battery when the L-type battery moves to the glue sticking station, and the front end of the tape is exposed from the L-type battery; the glue pressing station is provided with a glue pressing mechanism, and the glue pressing mechanism is used to press the tape and the upper film of the L-type battery when the L-type battery attached with the tape moves to the glue pressing station.

[0015] Furthermore, the film tearing working mechanism also includes a tidying station, on which is provided a gluing tidying mobile platform, and the gluing tidying mobile platform is used to tidy the front, back, left and right positions of the L-shaped battery when the L-shaped battery is moved to the tidying station, and move the tidy L-shaped battery to the gluing station.

[0016] Furthermore, the film tearing working mechanism also includes a flipping station, on which a loading and flipping mechanism is provided. The loading and flipping mechanism is used to flip the L-shaped battery when the L-shaped battery moves to the flipping station, and place the flipped L-shaped battery on the regular station.

[0017] Furthermore, the film tearing working mechanism also includes a transfer station and an NG station. The transfer station is provided with a material unloading transfer belt line, and the material unloading transfer belt line is used to transfer and convey the L-type batteries after film tearing; the NG station is provided with an NG product unloading belt line, and the NG product unloading belt line is used to store the L-type batteries that fail the quality test after film tearing.

[0018] Furthermore, the film-tearing working mechanism also includes a material unloading U-turn mechanism, which is arranged on one side of the material unloading transfer belt line and is used to turn around the L-type battery after the film is torn on the material unloading transfer belt line.

[0019] Furthermore, the feeding mechanism includes a feeding belt line and a feeding transfer mechanism, the feeding belt line is connected to the feeding line, and the feeding transfer mechanism absorbs the L-type battery at the end of the feeding belt line and moves it to the film tearing working mechanism.

[0020] Furthermore, the unloading mechanism includes an unloading belt line and an unloading transfer mechanism. The unloading belt line is connected to the unloading line. The unloading transfer mechanism absorbs the L-type battery after the film is torn in the film tearing working mechanism and moves it to the unloading belt line.

[0021] In a second aspect, the present invention provides a film peeling method, comprising the following steps:

[0022] Step S1, sticking: take a piece of tape and stick the tape on the edge of the upper film end of the L-shaped battery, with the front end of the tape exposed from the L-shaped battery;

[0023] Step S2, film peeling: on the side away from the tab of the L-shaped battery, a film peeling assembly is used to clamp the portion of the tape exposed from the L-shaped battery, and then the film peeling assembly drives the tape to move up a certain distance and rotate 180 degrees to peel the upper film;

[0024] Step S3, film peeling: the film peeling assembly clamps the portion of the tape exposed from the L-shaped battery and moves toward the rear end of the L-shaped battery at a uniform speed until the upper film is peeled off from the L-shaped battery, and then the lower film is peeled off from the L-shaped battery.

[0025] Further, in step S3, peeling the lower film from the L-shaped battery includes the following steps:

[0026] The battery transfer mechanism is used to adsorb on the upper surface of the L-shaped battery with the film torn off;

[0027] The upper film that has been peeled off from the L-shaped battery is clamped by using an auxiliary clamping assembly;

[0028] The battery transfer mechanism drives the L-shaped battery to move upward for a certain distance, and then moves backward at a uniform speed until the lower film is peeled off from the L-shaped battery.

[0029] Furthermore, the method further comprises the following steps:

[0030] Step S4, recovering the protective film: after the protective film is peeled off from the L-type battery, the auxiliary clamping assembly drives the protective film to move down a certain distance, the waste film clamping assembly clamps the protective film, the auxiliary clamping assembly releases the protective film, and the waste film clamping assembly drives the protective film to rotate downward a certain angle and then releases the protective film, so that the protective film falls into the waste film storage groove.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The film tearing machine provided by the present invention uses two film tearing working mechanisms to form two film tearing channels, and completes the loading and unloading of the two film tearing channels through the loading mechanism and the unloading mechanism, and uses the battery transfer mechanism to complete the transportation between the film tearing working mechanisms, thereby saving the intermediate transmission mechanism, reducing the occupied area of ​​a single device, and improving the utilization rate of the production space, thereby improving the production efficiency, so as to obtain higher production benefits; at the same time, it is suitable for tearing the film of L-type batteries, which can ensure that the force exerted on the surface of the L-type battery is uniform during film tearing, avoiding the problems of dark lines, wrinkles, swelling, etc. on the surface of the L-type battery after film tearing, and reducing the defective rate of the L-type battery during film tearing;

[0033] 2. The present invention is provided with a feeding turning mechanism, which is selectively started according to demand. For example, when the direction of the incoming L-shaped battery is reversed, the feeding turning mechanism turns the L-shaped battery over and places the turned L-shaped battery on the regular workstation;

[0034] 3. The present invention is provided with a material unloading transfer belt line and a NG product unloading belt line. When it is detected that there are L-type batteries with unqualified quality after film tearing on the material unloading transfer belt line, the unloading mechanism will grab the L-type batteries with unqualified quality after film tearing to the NG product unloading belt line to prevent the L-type batteries with unqualified quality after film tearing from flowing into the unloading line;

[0035] 4. The present invention is provided with a material unloading U-turn mechanism, which is activated as required. For example, when the direction of the L-type battery 1 after film tearing does not meet the code scanning requirement (such as the QR code is on the back of the L-type battery), the material loading flipping mechanism is activated to turn the L-type battery after film tearing on the unloading transfer belt line, so that the code scanning device can scan the QR code on the L-type battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a top view schematic diagram of the present invention;

[0037] Figure 2 It is a structural schematic diagram of the gluing regularization mobile platform in the present invention;

[0038] Figure 3It is a structural schematic diagram of the glue preparation and glue application mechanism in the present invention;

[0039] Figure 4 It is a structural schematic diagram of the glue pressing mechanism in the present invention;

[0040] Figure 5 It is a top view of the film tearing mechanism in the present invention;

[0041] Figure 6 It is a structural schematic diagram of the film tearing assembly in the present invention;

[0042] Figure 7 It is a structural schematic diagram of the feeding and turning mechanism in the present invention;

[0043] Figure 8 It is a structural schematic diagram of the material unloading and turning mechanism in the present invention;

[0044] Fig. 9 Schematic diagram of the state of the L-shaped battery and the protective film in the film tearing method of the present invention.

[0045] In the figure,

[0046] 1. Frame; 2. Battery transfer mechanism; 3. Loading belt line; 4. Loading transfer mechanism; 5. Unloading belt line; 6. Unloading transfer mechanism; 7. Glue-sticking regular mobile platform; 701. Glue-sticking regular platform; 702. Platform transfer mechanism; 703. First regular plate; 704. First regular translation module; 705. Front baffle; 706. Second regular plate; 707. Second regular translation module; 8. Glue preparation and gluing mechanism; 9. Glue pressing mechanism; 10. Film tearing mechanism; 101. Film tearing platform; 1011. First suction cup assembly; 102. Film tearing assembly; 1021. First translation module; 10 22. First lifting module; 1023. First rotating module; 1024. Clamp cylinder; 1025. Long clamp; 103. Auxiliary clamping assembly; 104. Waste film clamping assembly; 11. Loading and turning mechanism; 1101. Third lifting module; 1102. Third rotating module; 1103. Turning platform; 1104. Second suction cup assembly; 12. Unloading transfer belt line; 13. NG product unloading belt line; 14. Unloading U-turn mechanism; 1401. Fourth rotating module; 1402. U-turn rotating rod; 1403. Third suction cup assembly; 100. L-type battery; 200. Tape. DETAILED DESCRIPTION

[0047] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0048] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. Terms such as "provided at", "connected to", "fixed to", and "installed on" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", etc. are based on the directions or positions shown in the drawings, which are only for the convenience of description and cannot be understood as limitations on the present technical solution. The terms "first", "second" and "third" are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features.

[0049] See also Figure 1 The embodiment of the present invention provides an L-type battery film tearing machine, including a frame 1, on which a loading mechanism, a unloading mechanism, a battery transfer mechanism 2 and two film tearing working mechanisms are installed. The loading mechanism moves the L-type battery 100 on the loading line to the two film tearing working mechanisms for film tearing processing, and the unloading mechanism moves the L-type battery 100 after film tearing to the unloading line. The battery transfer mechanism 2 drives the L-type battery 100 to move between the two film tearing working mechanisms, thereby realizing dual-channel film tearing processing of the L-type battery 100.

[0050] The feeding mechanism includes a feeding belt line 3 and a feeding transfer mechanism 4. The feeding belt line 3 is connected to the feeding line. The feeding transfer mechanism 4 absorbs the L-shaped battery 100 at the end of the feeding belt line 3 and moves it to the film tearing working mechanism.

[0051] The unloading mechanism includes an unloading belt line 5 and an unloading transfer mechanism 6 . The unloading belt line 5 is connected to the unloading line. The unloading transfer mechanism 6 absorbs the L-type battery 100 after the film is torn in the film tearing working mechanism and moves it to the unloading belt line 5 .

[0052] The battery transfer mechanism 2 includes a transfer cross bar and a plurality of transfer suction cups arranged on the transfer cross bar. The transfer suction cups absorb the L-type battery 100 and move it between the two film tearing working mechanisms. The transfer cross bar is arranged on the transfer vertical slide rail and moves up and down along the transfer vertical slide rail. The transfer vertical slide rail is arranged on the transfer horizontal slide rail and slides left and right along the transfer horizontal slide rail.

[0053] The film-tearing mechanism includes a regularization station, a gluing station, a gluing station and a film-tearing station. The battery transfer mechanism 2 drives the L-type battery 100 to pass through the regularization station, the gluing station, the gluing station and the film-tearing station in sequence.

[0054] See also Figure 2 A glue-sticking and tidying mobile platform 7 is provided on the tidying station. The glue-sticking and tidying mobile platform 7 is used to tidy the front, back, left, and right positions of the L-shaped battery 100 when the L-shaped battery 100 is moved to the tidying station, and move the tidy L-shaped battery 100 to the glue-sticking station.

[0055] Specifically, the glue-sticking regularization mobile platform 7 includes a glue-sticking regularization platform 701 and a platform transfer mechanism 702. The movable end of the platform transfer mechanism 702 is fixed to the glue-sticking regularization platform 701. The loading mechanism moves the L-shaped battery 100 to the glue-sticking regularization platform 701. The platform transfer mechanism 702 drives the glue-sticking regularization platform 701 to move, and moves the L-shaped battery 100 to the glue-sticking station. The left and right sides of the rear end of the glue-sticking regularization platform 701 are provided with first regularization plates 703. The two first regularization plates 703 are each connected to a first regularization translation module 704. The first regularization translation module 704 drives the first regularization plates 703 to move toward the glue-sticking regularization platform 701, thereby regulating the left and right positions of the L-shaped battery 100 on the glue-sticking regularization platform 701. A front baffle 705 is provided at the front side of the front end of the glue regularization platform 701, and the height of the front baffle 705 protruding from the upper surface of the glue regularization platform 701 is lower than the thickness of the L-shaped battery 100, so as to prevent the front baffle 705 from affecting the glue preparation and glue application mechanism 8 to apply the adhesive tape 200 to the edge of the upper film end of the L-shaped battery 100. A second regularization plate 706 is provided at the rear side of the rear end of the glue regularization platform 701, and the second regularization plate 706 is connected to the second regularization translation module 707. The second regularization translation module 707 drives the second regularization plate 706 to move toward the glue regularization platform 701, and cooperates with the front baffle 705 to regularize the front and rear positions of the L-shaped battery 100 on the glue regularization platform 701. The above-mentioned glue regularization mobile platform 7 has a simple and stable structure, and can regularize the front, rear, left and right positions of the L-shaped battery 100 to improve the glue application accuracy, while not affecting the glue application of the glue preparation and glue application mechanism 8.

[0056] See also Figure 3 The glue sticking station is provided with a glue preparation and glue sticking mechanism 8, which is used to stick the adhesive tape 200 on the edge of the upper film end of the L-shaped battery 100 when the L-shaped battery 100 is moved to the glue sticking station, and the front end of the adhesive tape 200 is exposed from the L-shaped battery 100, so that the film tearing assembly 102 of the film tearing mechanism 10 can clamp the front end of the adhesive tape 200. Since the glue sticking mechanism 8 is an existing mature technology, the present invention does not describe its specific structure and working principle in detail.

[0057] See also Figure 4The glue pressing station is provided with a glue pressing mechanism 9, which is used to press the adhesive tape 200 and the upper film of the L-shaped battery 100 when the L-shaped battery 100 with the adhesive tape 200 is moved to the glue pressing station, so as to prevent the adhesive tape 200 from being separated from the upper film of the L-shaped battery 100 when the film is torn off. Since the glue pressing mechanism 9 is an existing mature technology, the present invention does not describe its specific structure and working principle in detail.

[0058] See also Figure 5 The film-tearing station is provided with a film-tearing mechanism 10, which includes a film-tearing platform 101, two film-tearing assemblies 102 respectively arranged on the left and right sides of the film-tearing platform 101, two auxiliary clamping assemblies 103 respectively arranged at the left rear and right rear of the film-tearing platform 101, and a waste film clamping assembly 104 arranged at the lower rear of the film-tearing platform 101. A first suction cup assembly 1011 for fixing the L-type battery 100 is arranged on the film-tearing platform 101, which is used to fix the L-type battery 100 when the film-tearing assembly 102 is tearing the film, so as to prevent the L-type battery 100 from detaching from the film-tearing platform 101 when the film is torn. When tearing the film, the film tearing assembly 102 far away from the pole ear of the L-type battery 100 tears the film of the L-type battery 100 to prevent the pole ear from blocking the movement of the film tearing assembly 102. The purpose of setting two film tearing assemblies 102 is that no matter whether the pole ear of the incoming L-type battery 100 is located on the left or right side of its end, there is a corresponding film tearing assembly 102 to tear the film for it, regardless of whether the L-type battery 100 is forward or reverse. The two auxiliary clamping assemblies 103 are used to assist the battery transfer mechanism 2 to tear the lower film off the L-type battery 100. The waste film clamping assembly 104 is used to recycle the protective film after peeling.

[0059] See also Figure 6 Specifically, the film tearing assembly 102 includes a first translation module 1021, a first lifting module 1022 arranged on the first translation module 1021, a first rotation module 1023 arranged on the first lifting module 1022, a clamp cylinder 1024 arranged on the first rotation module 1023, and a long clamping claw 1025 arranged on the clamp cylinder 1024. Among them, the first translation module 1021 is used to drive the long clamping jaw 1025 to move forward and backward; the long clamping jaw 1025 is used to clamp the part of the tape 200 exposed to the L-shaped battery 100, and the clamping length is consistent with the length of the tape 200, so as to ensure that the adhesion force overcome by each part of the battery is uneven when the film is torn off, and to avoid swelling of the battery surface; the first lifting module 1022 is used to lift the height of the long clamping jaw 1025 when the film is torn off, so that the long clamping jaw 1025 exceeds the upper surface of the L-shaped battery 100, so as to avoid the L-shaped battery 100 blocking the long clamping jaw 1025 from moving backward, and at the same time, because the long clamping jaw 1025 clamps the tape 200, the tape 200 will also be lifted synchronously with the long clamping jaw 1025. Preferably, the lifted tape 200 exceeds the upper surface of the L-shaped battery 100 by 2mm, so as to minimize the resistance when the film is torn off.

[0060] Specifically, the auxiliary clamping assembly 103 includes a second lifting module and a first finger cylinder disposed on the second lifting module. The first finger cylinder is used to clamp the corresponding side of the peeled upper film after the upper film is peeled off from the L-type battery 100, and the auxiliary battery transfer mechanism 2 tears the lower film from the L-type battery 100. The second lifting module is used to drive the first finger cylinder to move downward after the protective film is peeled off from the L-type battery 100, and the first finger cylinder drives the protective film to move downward to the clamping position of the waste film clamping assembly 104.

[0061] Specifically, the waste film clamping assembly 104 includes a second rotating module and a second finger cylinder disposed on the second rotating module. The second finger cylinder is used to clamp the protective film peeled off from the L-type battery 100. The second rotating module is used to drive the second finger cylinder to rotate upward or downward to move the protective film to the top of the waste film storage tank.

[0062] See also Figure 1 In one embodiment, the film tearing mechanism further includes a flipping station, which is located above the regularization station. The flipping station is provided with a loading flipping mechanism 11, which is used to flip the L-type battery 100 when the L-type battery 100 moves to the flipping station, and place the flipped L-type battery 100 on the regularization station. The loading flipping mechanism 11 is selectively started as required. For example, when the direction of the incoming L-type battery 100 is reversed, the loading mechanism will place the L-type battery 100 on the loading flipping mechanism 11, and then the loading flipping mechanism 11 flips the L-type battery 100 and places the flipped L-type battery 100 on the regularization station.

[0063] See also Figure 7 Specifically, the loading and flipping mechanism 11 includes a third lifting module 1101, a third rotating module 1102 disposed on the third lifting module 1101, a flipping platform 1103 disposed on the third rotating module 1102, and a second suction cup assembly 1104 disposed on the flipping platform 1103. The third lifting module 1101 is used to drive the flipping platform 1103 to move up and down, so as to place the flipped L-shaped battery 100 on the regular workstation; the second suction cup assembly 1104 is used to fix the L-shaped battery 100 placed on the flipping platform 1103; the third rotating module 1102 is used to drive the flipping platform 1103 to rotate 180 degrees, so as to flip the L-shaped battery 100.

[0064] See also Figure 1In one embodiment, the film-tearing mechanism further includes a transfer station and an NG station. The transfer station is provided with a material unloading transfer belt line 12, which is used to transfer and transport the L-type batteries 100 after the film is torn. The NG station is provided with an NG product unloading belt line 13, which is used to store L-type batteries 100 with unqualified quality after the film is torn. When it is detected that there are L-type batteries 100 with unqualified quality after the film is torn on the unloading transfer belt line 12, the unloading mechanism will grab the L-type batteries 100 with unqualified quality after the film is torn to the NG product unloading belt line 13, so as to prevent the L-type batteries 100 with unqualified quality after the film is torn from flowing into the unloading line.

[0065] See also Figure 1 In one embodiment, the film-tearing mechanism further includes a material unloading turning mechanism 14, which is disposed on one side of the unloading transfer belt line 12 and is used to turn around the L-shaped battery 100 after the film is torn on the unloading transfer belt line 12. The loading flip mechanism 11 is selectively started according to demand. For example, when the direction of the L-shaped battery 100 after the film is torn does not meet the code scanning requirement (such as the QR code is on the back of the L-shaped battery 100), the loading flip mechanism 11 is started to turn around the L-shaped battery 100 after the film is torn on the unloading transfer belt line 12, so that the code scanning device can scan the QR code on the L-shaped battery 100.

[0066] See also Figure 8 Specifically, the unloading and turning mechanism 14 includes a fourth rotating module 1401, a turning rotating rod 1402 disposed on the fourth rotating module 1401, and a third suction cup assembly 1403 disposed at the end of the turning rotating rod 1402. The third suction cup assembly 1403 is used to absorb the L-shaped battery 100 after the film is torn off on the unloading transfer belt line 12; the fourth rotating module 1401 is used to drive the turning rotating rod 1402 to rotate 180 degrees, so as to realize the turning of the L-shaped battery 100 after the film is torn off on the unloading transfer belt line 12.

[0067] See also Fig. 9 The embodiment of the present invention further provides a film peeling method, comprising the following steps:

[0068] Step S1, sticking glue: take a piece of tape 200, stick the tape 200 on the edge of the upper film end of the L-shaped battery 100, and the front end of the tape 200 is exposed from the L-shaped battery 100, so that the film tearing assembly 102 of the film tearing mechanism 10 can clamp the front end of the tape 200; the exposed width of the tape 200 should not be too long or too short. If it is too long, not only will the tape 200 be wasted, but the exposed tape 200 will bend downward, making it inconvenient for the film tearing mechanism 10 to clamp it. If it is too short, the film tearing mechanism 10 will not be able to clamp it. The width of the tape 200 should not be too long or too short. If it is too long, not only will the tape 200 be wasted, but if it is too short, it will not be able to stick to the upper film tightly and will easily fall off when the film is removed.

[0069] Step S2, film peeling: On the side of the tab away from the L-shaped battery 100, the film peeling assembly 102 is used to clamp the portion of the tape 200 exposed from the L-shaped battery 100, and then the film peeling assembly 102 drives the tape 200 to move up a certain distance and rotate 180 degrees to peel the upper film; in this embodiment, after the tape 200 moves up, it exceeds the upper surface of the L-shaped battery 100 by 2 mm, so that the resistance encountered during film peeling can be minimized.

[0070] Step S3, film peeling: the film peeling assembly 102 clamps the portion of the tape 200 exposed from the L-shaped battery 100 and moves uniformly toward the rear end of the L-shaped battery 100 until the upper film is peeled off from the L-shaped battery 100, and then peels the lower film off from the L-shaped battery 100.

[0071] In step S3, peeling the lower film from the L-type battery 100 includes the following steps:

[0072] The battery transfer mechanism 2 is used to adsorb on the upper surface of the L-shaped battery 100 from which the film has been torn off;

[0073] The auxiliary clamping assembly 103 is used to clamp the upper film that has been peeled off from the L-shaped battery 100;

[0074] After the battery transfer mechanism 2 drives the L-shaped battery 100 to move upward for a certain distance, it moves backward at a uniform speed until the lower film is peeled off from the L-shaped battery 100.

[0075] The battery transfer mechanism 2 cooperates with the auxiliary clamping assembly 103 to peel the lower film from the L-type battery 100. After the lower film is peeled off, the L-type battery 100 can be directly brought to the unloading transfer belt line 12 by the battery transfer mechanism 2, thereby improving the working efficiency of film peeling.

[0076] In one embodiment, the film peeling method further comprises the following steps:

[0077] Step S4, recovering the protective film: after the protective film is peeled off from the L-type battery 100, the auxiliary clamping assembly 103 drives the protective film to move down a certain distance, the waste film clamping assembly 104 clamps the protective film, the auxiliary clamping assembly 103 releases the protective film, and the waste film clamping assembly 104 drives the protective film to rotate downward a certain angle and then releases the protective film, so that the protective film falls into the waste film storage groove.

[0078] The film-tearing method provided by the present invention adopts a different adhesive sticking method from the conventional square lithium battery, and the tape 200 is pasted on the edge of the upper film end of the L-type battery 100, and the front end of the tape 200 is exposed to the L-type battery 100, and the exposed part of the tape 200 is clamped by the film-tearing assembly 102 on the side away from the pole ear of the L-type battery 100, and then the film-tearing assembly 102 drives the tape 200 to move up a distance and rotate 180 degrees, so as to film the upper film, and then the film-tearing assembly 102 moves at a uniform speed toward the rear end of the L-type battery 100, tears the upper film, and then tears the lower film, and peels the protective film from the battery. This film-tearing method is suitable for film-tearing of L-type batteries 100, and can ensure that the force on the surface of the L-type battery 100 is uniform when the film is torn, avoids the problems of dark lines, wrinkles, swelling, etc. on the surface of the L-type battery 100 after the film is torn, and reduces the defective rate of the L-type battery 100 when the film is torn.

[0079] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

[0080] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An L-type battery film tearing machine, comprising a feeding mechanism, a feeding mechanism, a battery transfer mechanism and two film tearing working mechanisms, wherein the feeding mechanism moves the L-type battery on the feeding line to the two film tearing working mechanisms for film tearing processing, the feeding mechanism moves the L-type battery after film tearing to the feeding line, and the battery transfer mechanism drives the L-type battery to move between the two film tearing working mechanisms, characterized in that: The film-tearing working mechanism comprises a film-tearing station, on which a film-tearing mechanism is provided, wherein the film-tearing mechanism comprises a film-tearing platform and two film-tearing assemblies respectively arranged on the left and right sides of the film-tearing platform, and when tearing the film, the film-tearing assembly far away from the tab of the L-shaped battery tears the film of the L-shaped battery; The film tearing assembly includes a first translation module, a first lifting module arranged on the first translation module, a first rotation module arranged on the first lifting module, a clamp cylinder arranged on the first rotation module, and a long clamping claw arranged on the clamp cylinder; The film tearing working mechanism also includes a flipping station and a tidying station. The flipping station is provided with a loading flipping mechanism. The loading flipping mechanism is used to flip the L-shaped battery when the L-shaped battery moves to the flipping station, and place the flipped L-shaped battery on the tidying station; The film-tearing mechanism further comprises a transfer station and an NG station. The transfer station is provided with a material unloading transfer belt line, which is used to transfer and convey the L-shaped batteries after film-tearing; the NG station is provided with an NG product unloading belt line, which is used to store the L-shaped batteries with unqualified quality after film-tearing; The film-tearing mechanism further includes a material unloading U-turn mechanism, which is arranged on one side of the unloading transfer belt line and is used to turn around the L-shaped battery after the film is torn on the unloading transfer belt line; The film tearing method of the L-type battery film tearing machine comprises the following steps: Step S1, sticking: take a piece of tape and stick the tape on the edge of the upper film end of the L-shaped battery, with the front end of the tape exposed from the L-shaped battery; Step S2, film peeling: on the side away from the tab of the L-shaped battery, a film peeling assembly is used to clamp the portion of the tape exposed to the L-shaped battery, and then the film peeling assembly drives the tape to move up a certain distance and rotate 180 degrees to peel the upper film; wherein, after the tape moves up, it exceeds the upper surface of the L-shaped battery by 2 mm; Step S3, film peeling: the film peeling assembly clamps the portion of the tape exposed from the L-shaped battery and moves toward the rear end of the L-shaped battery at a uniform speed until the upper film is peeled off from the L-shaped battery, and then the lower film is peeled off from the L-shaped battery.

2. The L-type battery film tearing machine according to claim 1, characterized in that: The film tearing mechanism further includes two auxiliary clamping assemblies respectively arranged at the left rear and right rear of the film tearing platform, and the two auxiliary clamping assemblies are used to assist the battery transfer mechanism to tear the lower film off the L-shaped battery; The auxiliary clamping assembly includes a second lifting module and a first finger cylinder arranged on the second lifting module.

3. The L-type battery film tearing machine according to claim 1, characterized in that: The film tearing mechanism further comprises a waste film clamping assembly arranged at the lower rear of the film tearing platform, and the waste film clamping assembly is used for recovering the protective film after peeling.

4. The L-type battery film tearing machine according to claim 1, characterized in that: The film tearing working mechanism also includes a glue sticking station and a glue pressing station. The glue sticking station is provided with a glue preparation and glue sticking mechanism. The glue preparation and glue sticking mechanism is used to stick the tape to the end edge of the upper film of the L-shaped battery when the L-shaped battery moves to the glue sticking station, and the front end of the tape is exposed from the L-shaped battery; the glue pressing station is provided with a glue pressing mechanism. The glue pressing mechanism is used to press the tape and the upper film of the L-shaped battery when the L-shaped battery with the tape attached moves to the glue pressing station.

5. The L-type battery film tearing machine according to claim 4, characterized in that: The film tearing working mechanism also includes a tidying station, on which is provided a gluing tidying mobile platform, which is used to tidy the front, back, left, and right positions of the L-shaped battery when the L-shaped battery is moved to the tidying station, and move the tidy L-shaped battery to the gluing station.

6. The L-type battery film tearing machine according to claim 1, characterized in that: In step S3, the step of peeling the lower film from the L-shaped battery includes the following steps: The battery transfer mechanism is used to adsorb on the upper surface of the L-shaped battery with the film torn off; The upper film that has been peeled off from the L-shaped battery is clamped by using an auxiliary clamping assembly; The battery transfer mechanism drives the L-shaped battery to move upward for a certain distance, and then moves backward at a uniform speed until the lower film is peeled off from the L-shaped battery.

Images