Film Coating Device and Processing Line for Power Battery Cover Plate

Abstract

An embodiment of the present invention discloses a film sticking device for a power battery cover plate, comprising: a machine table; a feeding mechanism arranged on the machine table for supplying a carrier tape and a protective film; a film sticking mechanism arranged on the machine table, including a plurality of first suction components arranged at intervals, and each first suction component can move along the width direction of the carrier tape to adjust the distance between every two adjacent first suction components. In the technical solution proposed by the present invention, each first suction component can move along the width direction of the carrier tape, that is, the distance between two adjacent first suction components is adjustable. Thus, the distance between a plurality of protective films in the width direction of the carrier tape can be smaller than the distance between each power battery cover plate. When the number of protective films is the same, the width size of the carrier tape is reduced, so that the material consumption of the carrier tape can be saved, and the cost can be further reduced. In addition, an embodiment of the present invention also discloses a processing line for a power battery cover plate.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of power battery processing, and particularly to a film pasting device and a processing line for a power battery cover plate. Background Art

[0002] In recent years, the sales volume of new energy vehicles mainly including electric vehicles and hybrid electric vehicles has been continuously increasing, and it has gradually become the main trend of global automotive development.

[0003] The electric energy used by electric vehicles comes from power batteries. The power battery includes a housing, a battery cell, and a cover plate. An explosion-proof valve is provided on the cover plate. When the internal pressure of the battery cell is too high, the explosion-proof valve will automatically open to release pressure to avoid explosion. To prevent dust from adhering to the explosion-proof valve, a protective film is often pasted on the surface of the explosion-proof valve.

[0004] To improve the film pasting efficiency, the film pasting device usually includes a plurality of suction nozzles distributed at intervals to simultaneously suck a plurality of protective films from the carrier tape and attach them one by one to the explosion-proof valves of the corresponding battery cover plates. Considering the movement interference problem between the suction nozzles during film pasting, a certain distance needs to be reserved between the suction nozzles. Based on this, a certain distance also needs to be correspondingly reserved between the protective films in the same row in the width direction of the carrier tape. In this way, it will cause partial waste of the carrier tape and increase the cost. Summary of the Invention

[0005] The main purpose of the present invention is to provide a film pasting device for a power battery cover plate, aiming to solve the technical problem of high production cost of the existing power battery cover plates.

[0006] In a first aspect, to achieve the above object, the embodiments of the present invention provide a film pasting device for a power battery cover plate, and the film pasting device for the power battery cover plate includes:

[0007] A machine platform;

[0008] A feeding mechanism, arranged on the machine platform, for supplying a carrier tape and a protective film;

[0009] A film pasting mechanism, arranged on the machine platform, including a plurality of first suction members arranged at intervals, and each of the first suction members can move along the width direction of the carrier tape to adjust the distance between every two adjacent first suction members;

[0010] Wherein, when each of the first suction members approaches each other along the width direction of the carrier tape to a first state, the distance between two adjacent first suction members corresponds to the distance between the corresponding protective films on the carrier tape; when each of the first suction members moves away from each other along the width direction of the carrier tape to a second state, the distance between two adjacent first suction members corresponds to the distance between the corresponding power battery cover plates.

[0011] In some embodiments, the film attaching mechanism includes:

[0012] A material taking component, including a first driving unit, the output execution end of the first driving unit is drivingly connected to the plurality of first material sucking members, and is used for driving the plurality of first material sucking members to suck the protective film from the carrier tape;

[0013] A transfer component, including a transfer platform, the transfer platform has a plurality of material placing positions distributed at intervals, the distance between each of the material placing positions corresponds to the distance between each power battery cover plate, and the material taking component temporarily places the protective film sucked from the carrier tape on the material placing position of the transfer platform;

[0014] A film attaching component, including a second driving unit and a plurality of second material sucking members arranged at intervals, the distance between each of the second material sucking members corresponds to the distance between each power battery cover plate, the output execution end of the second driving unit is drivingly connected to the plurality of second material sucking members, and is used for driving the plurality of second material sucking members to suck the protective film from the transfer platform and attach it to the explosion-proof valve of the battery cover plate.

[0015] In some embodiments, the material taking component further includes:

[0016] A scissor unit, the scissor unit extends along the width direction of the carrier tape and is respectively connected to the plurality of first material sucking members;

[0017] A third driving unit, the output execution end of the third driving unit is drivingly connected to the scissor unit, and is used for driving the free end of the scissor unit to move along the width direction of the carrier tape.

[0018] In some embodiments, the transfer platform includes:

[0019] A bottom plate;

[0020] Two positioning plates, at least one of the positioning plates is movably arranged on the bottom plate, and it can move along the length direction of the carrier tape. A plurality of grooves are arranged at intervals on each positioning plate, and a corresponding two grooves on the two positioning plates enclose to form one of the material placing positions.

[0021] In some embodiments, the transfer component further includes:

[0022] A fourth driving unit, the output execution end of the fourth driving unit is respectively drivingly connected to the two positioning plates, and is used for driving the two positioning plates to move relatively closer or farther away.

[0023] In some embodiments, a plurality of bosses are arranged on the bottom plate at intervals and located between the two positioning plates. The bosses are used for placing the protective film to be attached, and at least one of an anti-adhesive layer, a plurality of protrusions and through holes is arranged on each boss.

[0024] In some embodiments, the second driving unit includes a robotic arm, and a substrate is connected to the end of the robotic arm;

[0025] A cover plate is provided on a side of the substrate away from the robotic arm, and a plurality of vacuum adsorption cavities are provided between the substrate and the cover plate at intervals, and the plurality of vacuum adsorption cavities correspond to a plurality of second suction members one by one;

[0026] The second suction member includes a protrusion provided on the cover plate and a vacuum adsorption hole provided on the protrusion, and the vacuum adsorption hole is communicated with the vacuum adsorption cavity.

[0027] In some embodiments, a mounting plate is provided between the substrate and the end of the robotic arm, and a buffer assembly is provided between the mounting plate and the substrate for buffering when the protective film is attached to the explosion-proof valve.

[0028] In some embodiments, the feeding mechanism includes:

[0029] A tape feeding assembly for conveying a carrier tape and a protective film to a picking position of the film attaching mechanism;

[0030] A tape collecting assembly for recycling the carrier tape.

[0031] In a second aspect, an embodiment of the present invention further provides a processing line for a power battery cover plate, including a conveying device, an electrical detection device, and the film attaching device described in each of the foregoing embodiments, and the film attaching device and the electrical detection device are arranged along the conveying direction of the conveying device.

[0032] In the technical solution proposed by the present invention, each first suction member can move along the width direction of the carrier tape, that is, the distance between two adjacent first suction members is adjustable. When sucking the protective film to be attached from the carrier tape, each first suction member approaches each other along the width direction of the carrier tape to correspond to the distance between each protective film on the carrier tape. When attaching the sucked plurality of protective films to the explosion-proof valves of each power battery cover plate, each first suction member moves away from each other along the width direction of the carrier tape to correspond to the distance between each power battery cover plate. In this way, the distance between the plurality of protective films in the width direction of the carrier tape can be smaller than the distance between each power battery cover plate. When the number of protective films is the same, the width size of the carrier tape is reduced, so that the material used for the carrier tape can be saved, and further the production cost of the power battery cover plate can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic structural diagram of a carrier tape and a protective film;

[0034] Figure 2 It is a schematic structural diagram of a jig and a power battery cover plate;

[0035] Figure 3 Schematic structural diagram of the film pasting device for the power battery cover plate in an embodiment of the present invention;

[0036] Figure 4 Is Figure 3 Schematic structural diagram of the material taking component in;

[0037] Figure 5 Is Figure 4 Schematic structural diagram of the first material sucking member, scissor unit and third driving unit in;

[0038] Figure 6 Is Figure 5 Schematic structural diagram of the first material sucking member, scissor unit and third driving unit from another perspective in;

[0039] Figure 7 Is Figure 3 Schematic structural diagram of the transfer component in;

[0040] Figure 8 Is Figure 7 Exploded structural diagram of the transfer component in;

[0041] Figure 9 Is Figure 8 Partial enlarged schematic diagram of the A position in;

[0042] Figure 10 Is Figure 3 Schematic structural diagram of the feeding mechanism in;

[0043] Figure 11 Is Figure 10 Schematic structural diagram of the second material sucking member, substrate, cover plate, mounting plate and buffer component in;

[0044] Figure 12 Is Figure 3 Schematic structural diagram of the film pasting component in;

[0045] Figure 13 Schematic structural diagram of the processing line of the power battery cover plate in an embodiment of the present invention.

[0046] The realization of the purpose, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0047] Next, the solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0048] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0049] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0050] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0051] Please refer to Figure 1-4 , an embodiment of the present invention provides a film pasting device for a power battery cover plate, including:

[0052] A machine table 10;

[0053] A feeding mechanism 20, disposed on the machine table 10, for feeding a carrier tape 1 and a protective film 2;

[0054] A film pasting mechanism, disposed on the machine table 10, includes a plurality of first suction members 311 arranged at intervals, and each of the first suction members 311 can move along the width direction of the carrier tape 1 to adjust the distance between every two adjacent first suction members 311;

[0055] Wherein, when each of the first suction members 311 approaches each other along the width direction of the carrier tape 1, it corresponds to the distance between each protective film 2 on the carrier tape 1, and when each of the first suction members 311 moves away from each other along the width direction of the carrier tape 1, it corresponds to the distance between each power battery cover plate 3.

[0056] In this embodiment, the feeding mechanism 20 and the film pasting mechanism are respectively arranged on the machine table 10. The bottom of the machine table 10 is provided with moving wheels, and the film pasting device can be easily moved through the moving wheels, which is convenient for use and maintenance. Among them, the feeding mechanism 20 is used to supply the carrier tape 1 and the protective film 2. The protective film 2 is attached to the carrier tape 1. When the film pasting operation needs to be carried out, the film pasting mechanism sucks the protective film 2 from the carrier tape 1.

[0057] The film pasting mechanism includes a plurality of first suction members 311. The plurality of first suction members 311 are spaced apart and can move along the width direction of the carrier tape 1 to adjust the distance between every two adjacent first suction members 311. That is to say, the distance between the plurality of first suction members 311 can be changed according to the actual working conditions. Exemplarily, when sucking the protective film 2 to be pasted from the carrier tape 1, the respective first suction members 311 approach each other along the width direction of the carrier tape 1 to correspond to the distances between the respective protective films 2 on the carrier tape 1. When pasting the sucked plurality of protective films 2 on the explosion-proof valves of the respective power battery covers 3, the respective first suction members 311 move away from each other along the width direction of the carrier tape 1 to correspond to the distances between the respective power battery covers 3.

[0058] The film pasting mechanism can simultaneously complete the suction and pasting operations of the protective film 2 only through the plurality of first suction members 311, or a plurality of second suction members can be additionally provided. First, the first suction members 311 suck the protective film 2 to be pasted and transfer it to a preset area for positioning, and then the second suction members suck the positioned protective film 2 from the preset area and paste it on the explosion-proof valve of the power battery cover 3. Among them, the distance between the respective second suction members is fixed and corresponds to the distance between the respective power battery covers 3.

[0059] Exemplarily, the first suction member 311 proposed in this embodiment includes a mounting rod and a suction cup. The mounting rod is arranged in the vertical direction and internally constructed with a gas channel. One end of the gas channel is communicated with a vacuum generator, and the other end is communicated with the suction cup, so as to generate negative pressure in the gas channel through the vacuum generator, so that the protective film 2 can be firmly fixed on the suction cup under the action of the vacuum negative pressure.

[0060] In some embodiments, the power battery cover 3 can be placed on the machine table 10 through the fixture 400, or can be placed on the conveyor line on one side of the machine table 10 through the fixture 400. That is to say, a conveyor line is arranged on one side of the film pasting device, which is dedicated to conveying the fixture 400 and the power battery cover 3.

[0061] In some embodiments, please refer to Figure 4-10 ., the film pasting mechanism proposed in the embodiment of the present invention includes:

[0062] The material taking component 31 comprises a first driving unit 312, wherein the output execution end of the first driving unit 312 is transmission-connected with the plurality of first material sucking members 311, and is used for driving the plurality of first material sucking members 311 to suck the protective film 2 from the carrier tape 1;

[0063] The transfer assembly 32 includes a transfer platform 321, wherein the transfer platform 321 has a plurality of discharge positions 3211 that are spaced apart from each other, and the distance between each discharge position 3211 corresponds to the distance between each power battery cover plate 3. The material taking assembly 31 temporarily places the protective film 2 sucked from the carrier tape 1 on the transfer platform 321;

[0064] The film sticking assembly 33 includes a second driving unit 331 and a plurality of second suction members 332 arranged at intervals. The distance between each of the second suction members 332 corresponds to the distance between each of the power battery cover plates 3. The output execution end of the second driving unit 331 is transmission-connected to the plurality of second suction members 332, and is used to drive the plurality of second suction members 332 to absorb the protective film 2 from the transfer platform 321 and attach it to the explosion-proof valve of the power battery cover plate 3.

[0065] In this embodiment, the film pasting mechanism includes a material picking component 31, a transfer component 32 and a film pasting component 33. The material picking component 31 is used to transfer the protective film 2 on the carrier 1 to the transfer component 32, and the film pasting component 33 is used to absorb the protective film 2 from the transfer component 32 and attach it one by one to the corresponding power battery cover plate 3.

[0066] The material picking assembly 31 includes a first driving unit 312, and a plurality of first material suction members 311 are respectively connected to the first driving unit 312 in a transmission manner, so as to drive the plurality of first material suction members 311 to move between the carrier 1 and the transfer assembly 32 through the first driving unit 312. Exemplarily, the first driving unit 312 includes a gantry and a multi-axis linear module disposed on the gantry, so as to drive the plurality of first material suction members 311 through the multi-axis linear module. In some specific implementations, the multi-axis linear module can use a cylinder as a power source, or a motor as a power source, and those skilled in the art can design it according to actual conditions.

[0067] The transfer component 32 includes a transfer platform 321, and the surface of the transfer platform 321 has a plurality of material placing positions 3211 distributed at intervals. The distances between the respective material placing positions 3211 correspond one-to-one to the distances between the respective power battery covers 3, and are used for a plurality of first suction members 311 to place the plurality of protective films 2 sucked from the carrier tape 1 on the corresponding material placing positions 3211 respectively. It can be understood that before the plurality of first suction members 311 place the plurality of protective films 2 on the corresponding material placing positions 3211, the respective first suction members 311 are spaced apart from each other in the width direction of the carrier tape 1, so that the distances between the respective first suction members 311 correspond to the distances between the respective material placing positions 3211.

[0068] The film pasting component 33 includes a second driving unit 331 and a plurality of second suction members 332. The distances between the respective second suction members 332 are fixed and the same as the distances between the respective power battery covers 3. The second driving unit 331 is used to drive the plurality of second suction members 332 to move between the transfer component 32 and the power battery cover 3. It can be a robotic arm or a multi-axis linear module, and those skilled in the art can design according to the actual situation.

[0069] In some embodiments, please refer to Figure 4-6 , the material taking component 31 proposed in the embodiment of the present invention further includes:

[0070] A scissor unit 313, which is horizontally arranged along the width direction of the carrier tape 1 and is respectively connected to the plurality of first suction members 311;

[0071] A third driving unit 314, the output execution end of the third driving unit 314 is in transmission connection with the scissor unit 313, and is used to drive the scissor unit 313 to move along the width direction of the carrier tape 1.

[0072] In this embodiment, the relative approach or separation between the plurality of first suction members 311 is realized by the third driving unit 314 and the scissor unit 313. Among them, the third driving unit 314 is used to provide driving force, and the scissor unit 313 is used to connect the respective first suction members 311. Driven by the third driving unit 314, the scissor unit 313 can simultaneously drive the respective first suction members 311 to move in the width direction of the carrier tape 1 to adjust the distance between every two adjacent first suction members 311. Exemplarily, the third driving unit 314 in this embodiment uses a linear cylinder as the power source, and the linear cylinder is arranged along the width direction of the carrier tape 1.

[0073] In some embodiments, please refer to Figure 7-9 , the transfer platform 321 proposed in the embodiment of the present invention includes:

[0074] A bottom plate 3212;

[0075] Two positioning plates 3213, at least one of which is movably disposed on the bottom plate 3212, can be moved along the length direction of the carrier tape 1, and each of the positioning plates 3213 is provided with a plurality of grooves 3214 at intervals, and a discharge position 3211 is enclosed between two corresponding grooves 3214 disposed on the two positioning plates 3213.

[0076] In this embodiment, in order to ensure that the protective film 2 is accurately attached to the explosion-proof valve of the power battery cover plate 3, the transfer platform 321 includes a bottom plate 3212 and two positioning plates 3213 arranged opposite to each other, so as to position the protective film 2 to be attached through the two positioning plates 3213. Among them, each positioning plate 3213 is provided with a plurality of grooves 3214 at intervals, and a discharge position 3211 is formed between two corresponding grooves 3214 arranged on the two positioning plates 3213.

[0077] Furthermore, at least one of the two positioning plates 3213 can move along the width direction of the carrier tape 1 to expand or shrink the space of the discharge position 3211 defined by the two positioning plates 3213. Before the plurality of first suction members 311 place the plurality of protective films 2 at the corresponding discharge positions 3211, at least one of the two positioning plates 3213 moves along the width direction of the carrier tape 1 to expand the space of the discharge position 3211, thereby facilitating the placement of the protective films 2. After the protective films 2 are placed at the discharge position 3211, at least one of the two positioning plates 3213 moves in the opposite direction to shrink the space of the discharge position 3211.

[0078] For example, either one of the two positioning plates 3213 may be movable along the width direction of the carrier tape 1, or both positioning plates 3213 may be movable along the width direction of the carrier tape 1. When both positioning plates 3213 may be movable along the width direction of the carrier tape 1, the two positioning plates 3213 may move synchronously or separately.

[0079] In some embodiments, see Figure 7-9 , the transfer component 32 proposed in the embodiment of the present invention also includes:

[0080] The fourth driving unit 322 , wherein the output execution end of the fourth driving unit 322 is respectively connected to the two positioning plates 3213 for driving the two positioning plates 3213 to move closer to or farther from each other.

[0081] In this embodiment, the output execution end of the fourth driving unit 322 is respectively connected to the two positioning plates 3213 for synchronously driving the two positioning plates 3213 to move relative to each other, so as to realize the relative opening and closing between the two positioning plates 3213. To ensure the stable movement between the two positioning plates 3213, the fourth driving unit 322 includes two clamping claw cylinders, which are respectively arranged at the two ends of the two positioning plates 3213, and the two clamping claws of each clamping claw cylinder are respectively connected to the two positioning plates 3213 for driving the two positioning plates 3213 to move relative to each other.

[0082] In some embodiments, see Figure 9 The bottom plate 3212 proposed in the embodiment of the present invention is provided with a plurality of bosses 3212a which are spaced apart and located between the two positioning plates 3213, and the bosses 3212a are used to place the protective film 2 to be attached, and each of the bosses 3212a is provided with at least one of an anti-sticking layer, a plurality of bumps 3212b and a through hole 3212c.

[0083] In this embodiment, in order to ensure that the second suction member 332 can take out the protective film 2 from the discharge position 3211 and prevent the protective film 2 from adhering to the discharge position 3211, at least one of an anti-sticking layer, a plurality of bumps 3212b and a through hole 3212c is provided on the boss 3212a of the bottom plate 3212. Among them, the anti-sticking layer is provided on the boss 3212a, which can reduce the adhesion between the protective film 2 and the boss 3212a, and the plurality of bumps 3212b and the through hole 3212c are provided on the boss 3212a, which can reduce the contact area between the protective film 2 and the boss 3212a, thereby reducing the adhesion between the protective film 2 and the boss 3212a. Exemplarily, the boss 3212a proposed in this embodiment is provided with an anti-sticking layer, a plurality of bumps 3212b and a through hole 3212c at the same time.

[0084] In some embodiments, see Figure 10 , 11 , the second driving unit 331 proposed in the embodiment of the present invention includes a joint mechanical arm, and the end of the joint mechanical arm is connected to a base plate 333;

[0085] A cover plate 334 is provided on one side of the base plate 333 away from the joint mechanical arm, and a plurality of vacuum adsorption chambers 335 are provided between the base plate 333 and the cover plate 334, and the plurality of vacuum adsorption chambers 335 correspond one to one with the plurality of second material suction members 332;

[0086] The second material suction member 332 includes a protrusion 3321 disposed on the cover plate 334 and a vacuum suction hole 3322 disposed on the protrusion 3321 . The vacuum suction hole 3322 is communicated with the vacuum suction chamber 335 .

[0087] In this embodiment, the second driving unit 331 includes a robotic arm to drive a plurality of second suction members 332 through the robotic arm to complete the film pasting operation of the power battery cover 3. Wherein, the end of the robotic arm is connected with a substrate 333, a cover plate 334 is arranged on the substrate 333, and a plurality of vacuum adsorption cavities 335 distributed at intervals are arranged between the substrate 333 and the cover plate 334. The vacuum adsorption cavity 335 can be arranged only on the substrate 333, or only on the cover plate 334, or can be respectively arranged on the substrate 333 and the cover plate 334.

[0088] Further, the second suction member 332 includes a protrusion 3321 and a vacuum adsorption hole 3322. The protrusion 3321 protrudes on the cover plate 334. One end of the vacuum adsorption cavity 335 is communicated with the vacuum adsorption hole 3322, and the other end is communicated with a vacuum generator to generate negative pressure through the vacuum generator, so that the protrusion 3321 can firmly adsorb the protective film 2 to be pasted. Exemplarily, the shape and size of the protrusion 3321 are consistent with those of the protective film 2 to be pasted.

[0089] In some embodiments, please refer to Figure 10 , 11 , there is an installation plate 336 between the substrate 333 proposed in the embodiment of the present invention and the end of the robotic arm, and a buffer assembly 337 is arranged between the installation plate 336 and the substrate 333 for buffering when pasting the protective film 2 on the explosion-proof valve.

[0090] In this embodiment, to prevent damage to the explosion-proof valve of the power battery cover 3 during film pasting, an installation plate 336 is arranged at the end of the robotic arm, and the substrate 333 is arranged at an interval from the installation plate 336. A buffer assembly 337 is arranged between the substrate 333 and the installation plate 336. During film pasting, the buffer assembly 337 can buffer the pressure received by the explosion-proof valve to avoid damage to the explosion-proof valve. Exemplarily, the buffer assembly 337 proposed in this embodiment includes two guide rods arranged at intervals. One end of the guide rod is connected with the substrate 333, and the other end slides through the installation plate 336, and a telescopic spring is sleeved on the guide rod.

[0091] In some embodiments, please refer to Figure 12 , the feeding mechanism 20 proposed in the embodiment of the present invention includes:

[0092] A feeding component 21 for conveying the carrier tape 1 and the protective film 2 to the material taking position of the film pasting mechanism;

[0093] A collecting component 22 for recycling the carrier tape 1.

[0094] In this embodiment, when applying the film to the power battery cover plate 3, the feeding assembly 21 first conveys the carrier tape 1 and the protective film 2 to the material taking position of the film applying mechanism, and then the film applying mechanism sucks the protective film 2 to be applied at the material taking position and attaches it to the corresponding power battery cover plate 3 one by one. While applying the film, the empty carrier tape 1 will be recycled by the material collecting assembly 22.

[0095] Please refer to Figure 13 , the processing line of the power battery cover plate further proposed by the present invention includes a conveying device 100, an electrical detection device 200, and the film applying device 300 described in each of the foregoing embodiments. The specific structure of the film applying device 300 refers to the above embodiments. Since the processing line of the power battery cover plate adopts all the technical solutions of all the above embodiments, it has at least all the technical effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here. Among them, the film applying device 300 and the electrical detection device 200 are arranged along the conveying direction of the conveying device 100.

[0096] In this embodiment, the electrical detection device 200 includes a resistance detection device, a high-voltage detection device, an airtightness detection device, etc., that is, the power battery cover plate 3 is subjected to resistance detection, high-voltage detection, airtightness detection, etc. Among them, the sequence of electrical detection and film application of the power battery cover plate 3 can be arbitrary, that is, the power battery cover plate 3 can be film-applied first and then electrically detected, or the power battery cover plate 3 can be electrically detected first and then film-applied.

[0097] Furthermore, a fixture 400 for placing the power battery cover plate 3 is provided on the conveying device 100. The fixture 400 and the power battery cover plate 3 are sequentially conveyed to the film applying device 300 and the electrical detection device 200 through the conveying device 100. Exemplarily, the power battery cover plate 3 to be film-applied is placed on the fixture 400 and starts to be conveyed at one end of the conveying device 100. When it is conveyed to the film applying device 300, the film applying device 300 applies the film to the power battery cover plate 3 on the fixture 400. After the film application is completed, it is conveyed to the electrical detection device 200, and the electrical detection device 200 performs electrical detection on the power battery cover plate 3 on the fixture 400, and finally conveyed to the blanking area for blanking.

[0098] Optionally, the conveying device 100 proposed in this embodiment is an up-and-down circulating conveyor line, and a lifter 500 is provided at each of its two ends to transfer the fixture 400 from the upper conveyor line to the lower conveyor line, or transfer the fixture 400 from the lower conveyor line to the upper conveyor line through the lifter 500.

[0099] Without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0100] The above are only some or preferred embodiments of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the overall concept of the present invention, or any direct / indirect application in other related technical fields is included in the scope of protection of the present invention.

Claims

1. A film laminating device for a power battery cover plate, characterized in that, Comprising: Machine platform; Feeding mechanism, arranged on the machine platform for feeding carrier tape and protective film; Film pasting mechanism, arranged on the machine platform, including a plurality of first suction components arranged at intervals, and each of the first suction components can move along the width direction of the carrier tape to adjust the distance between every two adjacent first suction components; Wherein, when each of the first suction components approaches each other along the width direction of the carrier tape to the first state, the distance between two adjacent first suction components corresponds to the distance between the corresponding protective films on the carrier tape, and when each of the first suction components moves away from each other along the width direction of the carrier tape to the second state, the distance between two adjacent first suction components corresponds to the distance between the corresponding power battery covers; The film pasting mechanism includes a material taking component, a transfer component and a film pasting component. The material taking component includes a first driving unit, and the output execution end of the first driving unit is in transmission connection with the plurality of first suction components for driving the plurality of first suction components to suck the protective film from the carrier tape; the transfer component includes a transfer platform which has a plurality of material placing positions distributed at intervals, and the distance between each of the material placing positions corresponds to the distance between each of the power battery covers. The material taking component temporarily places the protective film sucked from the carrier tape on the material placing position of the transfer platform. The film pasting component includes a second driving unit and a plurality of second suction components arranged at intervals, and the distance between each of the second suction components corresponds to the distance between each of the power battery covers. The output execution end of the second driving unit is in transmission connection with the plurality of second suction components for driving the plurality of second suction components to suck the protective film from the transfer platform and paste it on the explosion-proof valve of the battery cover; The transfer platform includes a bottom plate and two positioning plates, and at least one of the positioning plates is movably arranged on the bottom plate and can move along the length direction of the carrier tape. A plurality of grooves are arranged at intervals on each of the positioning plates, and a corresponding two grooves respectively arranged on the two positioning plates enclose to form one of the material placing positions. A plurality of bosses are arranged at intervals on the bottom plate and located between the two positioning plates, and the bosses are used for placing the protective film to be pasted. At least one of an anti-adhesive layer, a plurality of bumps and through holes is arranged on each of the bosses; The transfer component further includes a fourth driving unit, and the output execution end of the fourth driving unit is respectively in transmission connection with the two positioning plates for driving the two positioning plates to approach or move away from each other relatively; 2. The film laminating device for the power battery cover plate according to claim 1, wherein, The material taking component further includes: Scissor unit, which extends along the width direction of the carrier tape and is respectively connected with the plurality of first suction components; Third driving unit, the output execution end of the third driving unit is in transmission connection with the scissor unit for driving the free end of the scissor unit to move along the width direction of the carrier tape; 3. The film laminating device for the power battery cover plate according to claim 1, characterized in that, The second driving unit includes an articulated robotic arm, and a substrate is connected to the end of the articulated robotic arm; A cover plate is arranged on one side of the substrate away from the articulated robotic arm, and a plurality of vacuum adsorption cavities are arranged at intervals between the substrate and the cover plate, and the plurality of vacuum adsorption cavities correspond to the plurality of second suction components one by one; The second material suction member includes a convex portion provided on the cover plate and a vacuum suction hole provided on the convex portion, and the vacuum suction hole is communicated with the vacuum suction cavity.

4. The film laminating device for the power battery cover plate according to claim 3, wherein, An installation plate is provided between the substrate and the end of the articulated robot arm, and a buffer assembly is provided between the installation plate and the substrate for buffering when the protective film is attached to the explosion-proof valve.

5. The film laminating device for the power battery cover plate according to claim 1, characterized in that, The feeding mechanism includes: A material discharging assembly for conveying the carrier tape and the protective film to the material taking position of the film attaching mechanism; A material collecting assembly for recycling the carrier tape.

6. A processing line for a power battery cover plate, characterized in that, It includes a conveying device, an electrical detection device and a film attaching device according to any one of claims 1 to 5, and the film attaching device and the electrical detection device are arranged along the conveying direction of the conveying device.

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