A power battery electrode sheet forming film cutting machine with automatic electrode sheet separation function

Abstract

This invention relates to the technical field of electrode sheet processing. Specifically, it relates to a power battery electrode sheet forming and cutting machine with an automatic electrode sheet separation function, comprising: an electrode sheet separation table, the top of which is provided with receiving grooves for receiving electrode sheets separated from the membrane, corresponding to each electrode sheet; an electrode sheet separation roller, rotatably mounted on the electrode sheet separation table, the surface of which has annular protrusions corresponding to each electrode sheet; and a membrane tensioning conveyor pair, which has two sets of concentrically arranged, synchronously rotating counter-rotating rotary conveyors for continuously conveying the membrane downstream of the electrode sheet separation roller in a clamping state. This invention has the advantages of automatically separating electrode sheets from the membrane, automatically winding up waste membrane, and automatically collecting electrode sheets.

Description

Technical Field

[0001] This invention relates to the field of electrode sheet processing technology, and more specifically to a power battery electrode sheet forming and cutting machine with automatic electrode sheet separation function. Background Technology

[0002] The battery electrode forming film cutting machine cuts the rolled electrode sheets intermittently. The cut electrode sheets, along with the remaining waste film material, are conveyed to the rear by a conveyor. Then, the workers grab the scraps of the battery electrode roll film and shake them up and down to make the electrode sheets fall off and separate. After falling into the collection box, the electrode sheets in the collection box are neatly arranged for storage or for processing in the next process.

[0003] When workers separate the electrode sheets, they grasp the corners on both sides of the cut battery electrode sheet roll and shake their hands to make the electrode sheets fall off the roll. The falling electrode sheets are prone to damage and may stack up. The stacked electrode sheets need to be sorted out manually. After the electrode sheets are separated from the battery electrode sheet roll, the remaining waste film needs to be collected and processed manually.

[0004] Therefore, a power battery electrode sheet forming and cutting machine with automatic electrode sheet separation function is invented to solve the above-mentioned problems of automatic electrode sheet separation, automatic collection of electrode sheets, and automatic winding of waste film. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this invention proposes a power battery electrode sheet forming and cutting machine with automatic electrode sheet separation function.

[0006] The technical solution of this invention is implemented as follows:

[0007] A power battery electrode sheet forming and cutting machine with automatic electrode sheet separation function includes a frame, a membrane conveying line mounted on the frame, and a membrane cutting section mounted on the membrane conveying line. An electrode sheet separation mechanism is provided at the tail end of the membrane conveying line, wherein the electrode sheet separation mechanism includes:

[0008] The electrode separation platform has an upper surface height that is the same as the platform height of the membrane conveyor line, and the top of the electrode separation platform is provided with receiving grooves for receiving electrode sheets separated from the membrane, corresponding to each electrode sheet.

[0009] The electrode sheet separating roller is rotatably mounted on the electrode sheet separating table. The surface of the electrode sheet separating roller has an annular protrusion corresponding to each electrode sheet, and the bottom of the annular protrusion extends into the receiving groove directly below it.

[0010] The film tensioning track pair is provided with two groups of synchronous reverse rotating rotary tracks arranged in concentric, the two groups of rotary tracks are arranged in inner and outer, and are used for continuously conveying the film in a clamped state downstream of the electrode sheet separation roller;

[0011] The separation roller lifting upper swing rod is fixedly installed at the bottom end of the transverse support shaft, and the top end extends to the inside of the film tensioning track pair, and is used for being pushed by the film body part conveyed by the film tensioning track pair.

[0012] The separation roller lifting lower swing rod is fixedly installed at the top end of the transverse support shaft, and the bottom end is connected with the separation roller lifting connecting rod, and the separation roller lifting connecting rod is slidingly arranged on the electrode sheet separation table in the height direction.

[0013] The electrode sheet separation roller is fixedly connected to the bottom end of the separation roller lifting connecting rod through the separation roller roller seat, and the separation roller roller seat is slidingly installed on the electrode sheet separation table in the height direction, and the top of the separation roller roller seat is connected with the separation roller pressing spring.

[0014] Further, the two sides of the electrode sheet separation table are fixedly connected with the separation roller support, the separation roller roller seat is slidingly arranged on the separation roller support in the height direction, the two ends of the transverse support shaft are rotatably installed on the separation roller support, the top end of the separation roller pressing spring is connected with the separation roller support, the rotary track is rotatably installed at the top end of the separation roller support, the separation roller lifting connecting rod comprises a first connecting rod and a second connecting rod, the top end of the first connecting rod is rotatably connected with the bottom end of the separation roller lifting lower swing rod, the top end of the second connecting rod is rotatably connected with the bottom end of the first connecting rod, and the second connecting rod is slidingly arranged on the separation roller support in the height direction.

[0015] Further, a plurality of each group of rotary tracks are equidistantly arranged in the width direction of the film conveying frame, and one separation roller lifting upper swing rod is arranged corresponding to the interval between adjacent two rotary tracks in the same group, the two ends of the rotary track are sleeved with a rotating shaft support plate for maintaining the circular arc shape, a plurality of track transmission rotating shafts are installed between the rotating shaft support plates, the opposite ends of the track transmission rotating shafts of adjacent two rotary tracks in the same group are connected, the end of one track transmission rotating shaft of the two groups of rotary tracks extends out of the rotating shaft support plate and is connected with a track transmission gear, the two track transmission gears are meshed to drive the two rotary tracks to synchronously and reversely rotate, and one of the track transmission gears is drivingly connected with a track transmission bevel gear pair.

[0016] Further, the end of the electrode sheet separation roller on the same side of the track transmission bevel gear pair is connected with a separation roller transmission bevel gear pair, the separation roller transmission bevel gear pair and the track transmission bevel gear pair are drivingly connected through a power transmission shaft, and the power transmission shaft is drivingly connected with the film conveying line through a power transmission component, for cooperating with the film conveying line to convey the film.

[0017] Further, the outlet side of the film tensioned track pair is provided with a waste film winding roller, both ends of the waste film winding roller are rotatably supported on a winding roller support, one end of the winding roller support is fixedly installed on the separation roller support, the height of the waste film winding roller is less than the height of the film tensioned track pair, and the winding roller support is obliquely arranged, both ends of the waste film winding roller are rotatably installed with winding roller roller seats, the winding roller support is provided with a winding roller seat sliding groove, and the winding roller roller seat is slidingly arranged in the winding roller seat sliding groove.

[0018] Further, one of the track drive shafts is drivingly connected with a winding drive bevel gear pair at one end opposite to the track drive gear, the waste film winding roller is drivingly connected with a winding drive bevel gear pair at one end corresponding to the winding drive bevel gear pair, and the winding drive bevel gear pair and the winding drive bevel gear pair are drivingly connected with a winding drive telescopic shaft, wherein the winding outer layer shaft of the winding drive telescopic shaft is rotatably installed on the winding roller support, one end of the winding inner layer shaft of the winding roller drive telescopic shaft is inserted into the outer layer shaft, and the winding inner layer shaft is rotatably installed on the winding roller roller seat at one end connected with the winding drive bevel gear pair.

[0019] Further, the separation roller support includes an upper support body, a lower support body, and a support body fastening knob, the lower support body is fixedly installed on the electrode sheet separation table, the bottom end of the upper support body is inserted into the cavity of the top end of the lower support body, and the inner side end of the support body fastening knob is tightly abutted against the upper support body by being inserted into the cavity of the lower support body to fix the upper support body.

[0020] The second connecting rod includes an upper rod body, a lower rod body, and a rod body fastening knob, the upper rod body is rotatably installed on the upper support body, the bottom end of the upper rod body is inserted into the cavity of the top end of the lower rod body, the lower rod body is rotatably installed on the lower support body, the bottom end of the lower rod body is fixedly connected with the spring seat, and the inner side end of the rod body fastening knob is tightly abutted against the upper rod body by being inserted into the cavity of the lower rod body to fix the upper rod body.

[0021] Further, the power transmission shaft includes an upper shaft and a lower shaft, the power transmission component is drivingly connected with the lower shaft, the lower shaft is rotatably installed on the lower support body, and the upper shaft is rotatably installed on the upper support body, the top end of the upper shaft is drivingly connected with the track drive bevel gear pair, and the bottom end of the upper shaft is telescopically inserted into the shaft cavity of the top end of the lower shaft.

[0022] Further, the tail end of the electrode sheet separation table is provided with an electrode sheet collecting box, the electrode sheet collecting box is provided with electrode sheet collecting cavities corresponding to the receiving grooves one by one, and the tail end surface of the electrode sheet collecting box is detachably provided with cavity doors corresponding to the electrode sheet collecting cavities.

[0023] Furthermore, the electrode collection cavity is provided with receiving plates arranged in a front-to-back opposite manner. The opposite ends of the two receiving plates are rotatably mounted on the electrode collection box via a lowering shaft. The end of the lowering shaft is connected to the separating roller seat via a lowering transmission component. The lowering transmission component is configured such that when the separating roller seat is at its highest position, both receiving plates are in a vertically open state with the end away from the lowering shaft facing downwards, and when the separating roller seat is at its lowest position, both receiving plates are in a horizontally closed state.

[0024] The present invention has the following beneficial effects:

[0025] 1. By setting up an electrode sheet separation mechanism, the present invention can automatically separate the electrode sheet from the membrane after membrane cutting. Compared with the existing technology that relies on manual hand-held shaking of the membrane, it is more efficient, has a better electrode sheet separation effect, and a higher degree of automation.

[0026] 2. This invention can automatically collect the film after it has detached from the electrode sheet by setting a waste film take-up roller, thereby further improving the automation performance.

[0027] 3. By setting up an electrode sheet collection box, the present invention can automatically transport the electrode sheets separated from the membrane to the electrode sheet collection box for centralized collection, in conjunction with the electrode sheet separation roller.

[0028] 4. The present invention improves performance by setting the height of the membrane tensioning track pair to be adjustable, so as to be suitable for the automatic separation of electrode sheets of different lengths. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the electrode sheet separation mechanism of the present invention;

[0030] Figure 2 This is a schematic diagram of the power transmission component of the present invention;

[0031] Figure 3 This is a schematic diagram of the overall structure of the waste film take-up roller of the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of the receiving plate of the present invention;

[0033] Figure 5 This is the present invention. Figure 4 Enlarged view of point A;

[0034] Figure 6 This is a schematic diagram of the structure of the electrode sheet separation roller of the present invention;

[0035] Figure 7 This is a schematic diagram of the lifting linkage of the separating roller of the present invention;

[0036] Figure 8 This is a schematic diagram of the structure of the take-up roller bracket of the present invention;

[0037] Figure 9 This is the present invention. Figure 8 Enlarged view of point B;

[0038] Figure 10 This is the present invention. Figure 8 Enlarged view of point C;

[0039] Figure 11 This is the present invention. Figure 8 Enlarged view of point D. Detailed Implementation

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Please see Figures 1 to 11 As shown, the power battery electrode sheet forming and cutting machine with automatic electrode sheet separation function provided by the present invention includes a frame 1, a membrane conveying line 2, a membrane cutting section and an electrode sheet separation mechanism.

[0042] The membrane conveyor line 2 is installed on the frame 1. It mainly includes a membrane conveyor roller and a membrane conveyor belt. The membrane is partially set on the conveyor line. It is used to cut the electrode sheet on the membrane below it during the stop gap of the conveyor line. The cut part continues to be conveyed to the tail of the membrane conveyor line 2. The electrode sheet is detached from the membrane at the tail of the membrane conveyor line 2.

[0043] An electrode sheet separation mechanism is located at the tail end of the membrane conveyor line 2, and is used to automatically separate the cut electrode sheets from the membrane. The electrode sheet separation mechanism includes an electrode sheet separation platform 3, an electrode sheet separation roller 5, a membrane tensioning conveyor pair, an upper lifting arm 8 for the separation roller, and a lower lifting arm 10 for the separation roller.

[0044] The electrode separation platform 3 is docked at the end of the membrane conveying line 2, and the height of its upper surface is the same as the platform height of the membrane conveying line 2, so that the electrode sheet can enter the upper surface of the electrode separation platform 3 from the membrane conveying line 2 when it is conveyed along with the membrane.

[0045] The upper surface of the electrode separation stage 3 is provided with receiving grooves 4 for receiving electrode sheets separated from the membrane, corresponding to each electrode sheet. Specifically, the electrode sheets after membrane cutting are evenly distributed on the membrane, so that when the electrode sheet moves to the electrode separation stage 3, it is positioned directly above its corresponding receiving groove 4.

[0046] The electrode separation roller 5 is rotatably mounted on the electrode separation stage 3. The surface of the electrode separation roller 5 has an annular protrusion 6 corresponding to each electrode sheet, and the bottom of the circumferential surface of the annular protrusion 6 extends into the receiving groove 4 directly below it.

[0047] Specifically, the annular protrusions 6 are arranged on the electrode sheet separating roller 5 in a one-to-one correspondence with the receiving grooves 4, and the annular protrusions 6 are arranged near the tail end of the receiving grooves 4, so that when the electrode sheet separating roller 5 contacts the electrode sheet, the entire electrode sheet pressed down by it is located in the receiving grooves 4.

[0048] The membrane tensioning conveyor belt is equipped with two sets of rotating conveyors 7. Both sets of rotating conveyors 7 have an arc-shaped rotating structure and are arranged concentrically, with one set inside the other. A channel for conveying the membrane is formed between the two sets of rotating conveyors 7. After the membrane leaves the electrode plate separating roller 5, it passes between the two sets of rotating conveyors 7. At this time, the two sets of rotating conveyors 7 continue to convey the membrane backward in a clamping state.

[0049] The bottom end of the upper swing arm 8 for lifting the separating roller and the top end of the lower swing arm 10 for lifting the separating roller are both fixedly mounted on the transverse support shaft 9, which is rotatably mounted on the electrode plate separation stage 3. The top end of the upper swing arm 8 for lifting the separating roller extends into the interior of the membrane tensioning conveyor pair and is used to push the membrane portion conveyed by the membrane tensioning conveyor pair.

[0050] Specifically, after the membrane is separated from the electrode plates, the membrane body portion corresponding to the part between the two rows of electrode plates is a complete membrane body. This part of the membrane body can maintain a relatively stable state when it is conveyed in a clamped state by the membrane tensioning conveyor pair. During the process of leaving the membrane tensioning conveyor pair, it pushes the top of the upper swing arm 8 of the separation roller, so that the upper swing arm 8 of the separation roller rotates around the transverse support shaft 9. At this time, the transverse support shaft 9 causes the lower swing arm 10 of the separation roller to swing.

[0051] The bottom end of the separating roller lifting swing arm 10 is connected to the separating roller lifting link 11, and the separating roller lifting link 11 is slidably mounted on the electrode sheet separating platform 3 in the height direction. The electrode sheet separating roller 5 is fixedly connected to the bottom end of the separating roller lifting link 11 through the separating roller seat 12, and the separating roller seat 12 is slidably mounted on the electrode sheet separating platform 3 in the height direction. The top of the separating roller seat 12 is connected to the separating roller pressing spring 13.

[0052] At this time, when the upper swing arm 8 of the separating roller lifts drives the lower swing arm 10 of the separating roller lifts to swing through the transverse support shaft 9, the lower swing arm 10 of the separating roller lifts drags the separating roller seat 12 upward through the separating roller lifting connecting rod 11. The separating roller seat 12 moves upward to compress the lower pressure spring and drives the electrode sheet separating roller 5 to move upward to the bottom of the annular protrusion 6 and move to the upper surface of the membrane.

[0053] After applying the above-described solution of the present invention:

[0054] Because the electrode sheet separating roller 5 utilizes its own weight and the elastic force of the downward pressure spring, it has a downward impact force.

[0055] When the membrane carrying the electrode sheet passes through the electrode sheet separation roller 5 after the membrane is cut, the annular protrusion 6 on the electrode sheet separation roller 5 will press down on the electrode sheet and press the electrode sheet into the receiving groove 4.

[0056] When the membrane portion between two adjacent rows of electrode sheets passes the electrode sheet separation roller 5, the electrode sheet separation roller 5 rises to the upper surface of the membrane so that the membrane portion passes over the bottom of the annular protrusion 6.

[0057] As soon as the membrane portion passes the bottom of the annular protrusion 6, the electrode separation roller 5 automatically presses down on the next row of electrode sheets in the membrane portion.

[0058] Therefore, based on the distribution of the electrode sheets on the membrane, the electrode sheet separating roller 5 can automatically press down the electrode sheets when they reach the receiving groove 4, causing the electrode sheets to separate from the membrane and enter the receiving groove 4. When the membrane portion between the two rows of electrode sheets passes the electrode sheet separating roller 5, the electrode sheet separating roller 5 automatically rises so that the membrane can pass over the electrode sheet separating roller 5.

[0059] Among them, the electrode sheet separation platform 3 is fixedly connected to both sides of the separation roller bracket 14, the separation roller seat 12 is slidably set on the separation roller bracket 14 in the height direction, both ends of the transverse support shaft 9 are rotatably installed on the separation roller bracket 14, the top end of the separation roller pressure spring 13 is connected to the separation roller bracket 14, and the rotary track 7 is rotatably installed on the top end of the separation roller bracket 14.

[0060] The separating roller lifting link 11 includes a first link 11.1 and a second link 11.2. The top end of the first link 11.1 is rotatably connected to the bottom end of the separating roller lifting swing arm 10, and the top end of the second link 11.2 is rotatably connected to the bottom end of the first link 11.1. The second link 11.2 is slidably mounted on the separating roller bracket 14 in the height direction.

[0061] Furthermore, each set of rotary tracks 7 has multiple tracks evenly spaced in the width direction of the film conveyor frame, and the lifting arm 8 of the separating roller is set at a distance corresponding to the interval between two adjacent rotary tracks 7 in the same set. Both ends of the rotary tracks 7 are fitted with a rotating shaft support plate 15 to keep them in an arc shape, and multiple track drive shafts 16 are installed between the rotating shaft support plates 15. The track drive shafts 16 of two adjacent rotary tracks 7 in the same set are connected at opposite ends, and each set of rotary tracks 7 has one end of a track drive shaft 16 that extends out of the rotating shaft support plate 15 and is connected to a track drive gear 17. The two track drive gears 17 mesh to drive the two rotary tracks 7 to rotate synchronously in opposite directions, and one of the track drive gears 17 is connected to a track drive bevel gear pair 18.

[0062] Among them, the outer surface of the rotary track 7 is uniformly provided with interlocking parts. When the two rotary tracks 7 are conveying the film, the interlocking parts on the two rotary tracks 7 interlock at different positions on the film to ensure that the film conveyed between the two rotary tracks 7 is in a stable taut state, thereby enabling the film to stably drive the separation roller to lift and swing the upper swing arm 8.

[0063] Furthermore, the electrode sheet separating roller 5 is connected to the end of the same side as the track drive bevel gear pair 18 by a separating roller drive bevel gear pair 19, and the separating roller drive bevel gear pair 19 and the track drive bevel gear pair 18 are connected by a power transmission shaft 20. The power transmission shaft 20 is connected to the film conveying line 2 by a power transmission component 21, and is used to cooperate with the film conveying line 2 to convey the film.

[0064] At this time, in combination with the operation mode of the membrane transport line 2 in the existing technology, when the part to be cut on the membrane moves to the direct under the membrane cutting mechanism, the membrane transport line 2 stops to provide time for the operation of the membrane cutting part. After the membrane cutting, the membrane transport line 2 will automatically move again so as to transport the next row of electrode sheets to be cut to the direct under the membrane cutting part.

[0065] Among them, a waste film take-up roller 22 is provided on the exit side of the film tensioning track pair. Both ends of the waste film take-up roller 22 are rotatably supported on the take-up roller bracket 23. One end of the take-up roller bracket 23 is fixedly installed on the separation roller bracket 14. The height of the waste film take-up roller 22 is less than the height of the film tensioning track pair, and the take-up roller bracket 23 is inclined. Both ends of the waste film take-up roller 22 are rotatably installed with take-up roller seats 24. The take-up roller bracket 23 is provided with a take-up roller seat groove 25, and the take-up roller seat 24 is slidably disposed in the take-up roller seat groove 25.

[0066] After the waste film take-up roller 22 is installed, on the one hand, the waste film after the electrode sheet is detached can be automatically taken up for subsequent recycling. On the other hand, the take-up roller support 23 is set at an angle, so that the waste film take-up roller 22 can assist the film tensioning conveyor in improving the film's performance.

[0067] One of the track drive shafts 16 is connected to a winding drive bevel gear pair 26 at one end opposite to the track drive gear 17. The waste film winding roller 22 is connected to a winding drive bevel gear pair 27 at one end corresponding to the winding drive bevel gear pair 26. A winding drive telescopic shaft 28 is connected between the winding drive bevel gear pair 26 and the winding drive bevel gear pair 27. The outer winding shaft of the winding drive telescopic shaft 28 is rotatably mounted on the winding roller bracket 23. One end of the inner winding shaft of the winding roller drive telescopic shaft is inserted into the outer shaft, and the end of the inner winding shaft connected to the winding drive gear pair is rotatably mounted on the winding roller seat 24.

[0068] By making the above settings, as the waste film take-up roller 22 continuously takes up waste film, its radius increases, and the distance between it and the film tensioning track is automatically adjusted by the upward displacement of the take-up roller seat 24 on the take-up roller bracket 23. At the same time, during the adjustment process, the normal power supply is maintained by utilizing the retractable state of the take-up roller.

[0069] The separating roller support 14 includes an upper frame 14.1, a lower frame 14.2, and a frame fastening knob 14.3. The lower frame 14.2 is fixedly mounted on the electrode sheet separating stage 3. The bottom end of the upper frame 14.1 is inserted into the cavity of the lower frame 14.2 from the top end. The frame fastening knob 14.3 is threaded onto the lower frame 14.2, and its inner end is inserted into the cavity of the lower frame 14.2 to press against the upper frame 14.1 to fix the upper frame 14.1. At this time, the length of the separating roller support 14 can be adjusted by loosening the frame fastening knob 14.3 to adjust the height of the membrane tensioning conveyor belt. After the adjustment is completed, the height-adjusted membrane tensioning conveyor belt is fixed by retightening the frame fastening knob.

[0070] The second connecting rod 11.2 includes an upper rod body 11.2.1, a lower rod body 11.2.2, and a rod fastening knob 11.2.3. The upper rod body 11.2.1 is rotatably mounted on the upper frame 14.1, with its bottom end inserted into the cavity of the lower rod body 11.2.2 from its top end. The lower rod body 11.2.2 is rotatably mounted on the lower frame 14.2, with its bottom end fixedly connected to a spring seat. The rod fastening knob 11.2.3 is threaded onto the lower rod body 11.2.2, and its inner end abuts against the upper rod body 11.2.1 by being inserted into the cavity of the lower rod body 11.2.2 to fix the upper rod body 11.2.1. At this time, the length of the second connecting rod 11.2 can be adjusted by loosening the rod fastening knob 11.2.3, and after adjustment, the rod fastening knob 11.2.3 is tightened again to fix the length of the second connecting rod 11.2 after length adjustment.

[0071] By making the above settings, the distance between the membrane tensioning conveyor and the electrode separation roller 5 can be adjusted according to the length of different electrode sheets by adjusting the height of the separation roller bracket 14 and the length of the second connecting rod 11.2, so as to achieve effective separation of electrode sheets of different lengths and greatly improve practicality.

[0072] Furthermore, to accommodate the separation of electrode sheets of different lengths, the power drive shaft 20 includes an upper shaft and a lower shaft. The power transmission component 21 is connected to the lower shaft, which is rotatably mounted on the lower frame 14.2. The upper shaft is rotatably mounted on the upper frame 14.1. The top end of the upper shaft is connected to the track drive bevel gear pair 18, and the bottom end of the upper shaft is retractably inserted into the shaft cavity of the lower shaft from the top end. Thus, the length of the power drive shaft 20 is simultaneously adjusted while the length of the separating roller support 14 is being adjusted.

[0073] In this embodiment of the invention, an electrode sheet collection box 29 is provided at the tail end of the electrode sheet separation stage 3. The electrode sheet collection box 29 is provided with electrode sheet collection cavities 30 that are distributed in a one-to-one correspondence with each receiving groove 4. A cavity door 31 is provided on the tail end surface of the electrode sheet collection box 29 corresponding to each electrode sheet collection cavity 30.

[0074] Specifically, the distance between the upstream end of the receiving groove 4 and the upstream end of the top inlet of the electrode sheet collecting cavity 30 is set to be less than the length of the electrode sheet. This ensures that when the electrode sheet separating roller 5 presses down on the downstream end of the electrode sheet, its upstream end is still supported by the electrode sheet separating table 3, so that the electrode sheet is torn apart from the downstream end to the upstream end when it is separated, thus improving the separation effect.

[0075] By making the above settings, the electrode sheets that have been separated by the electrode sheet separating roller 5 and entered the receiving groove 4 continue to be conveyed by the electrode sheet separating roller 5 before it is lifted. At this time, the electrode sheet separating roller 5 conveys the electrode sheets in the receiving groove 4 to the corresponding electrode sheet collecting cavity 30. In this way, the automatic collection of electrode sheets is achieved.

[0076] Furthermore, the electrode collection cavity 30 is provided with receiving plates 32 arranged in a front-to-back relative manner. The opposite ends of the two receiving plates 32 are rotatably mounted on the electrode collection box 29 via a lowering shaft 33. The end of the lowering shaft 33 is connected to the separating roller seat 12 via a lowering transmission component 34. The lowering transmission component 34 is configured such that when the separating roller seat 12 is in the highest position, the two receiving plates 32 are in a vertically open state with the end away from the lowering shaft 33 facing downwards, and when the separating roller seat 12 is in the lowest position, the two receiving plates 32 are in a horizontally closed state.

[0077] Specifically, the electrode sheet that moves from the receiving groove 4 to the electrode sheet collection cavity 30 first slides onto the receiving plate 32. Then, during the process of the electrode sheet separating roller 5 being lifted, the two receiving plates 32 swing to a vertical state, causing the electrode sheet at the top of them to fall from between the two receiving plates 32 into the electrode sheet collection cavity 30 and be collected.

[0078] The lowering transmission component 34 includes a rack, a lowering transmission gear, and a lowering transmission bevel gear pair. The rack is fixedly mounted on the bottom of the separating roller seat 12, and the lowering transmission gear is rotatably mounted on the lowering shaft 33. The rack meshes with the lowering transmission gear. Both ends of the two lowering shafts 33 are provided with lowering transmission bevel gear pairs, and the two lowering transmission bevel gear pairs are connected by a connecting shaft.

[0079] More specifically, the separating roller seat 12 moves along with the electrode sheet separating roller 5. A rack is fixedly installed at the bottom of the separating roller seat 12. The separating roller seat 12 drives the rack to move, and the rack drives the rotation of the lowering transmission gear and the lowering transmission bevel gear on the lowering transmission component 34, so that the lowering transmission component 34 drives the rotation of the lowering shaft 33, thereby achieving the purpose of opening and closing the receiving plate 32 on the lowering shaft 33.

[0080] In the specific implementation process, the height between the membrane tensioning conveyor pair and the electrode sheet separation roller 5 is set. When one of the membrane parts located between two adjacent rows of electrode sheets is stably conveyed within the membrane tensioning conveyor pair and the separation roller is lifted and the swing arm 8 is in a swinging state, the downstream end of the upstream membrane part located between two electrode sheets moves to the center position of the electrode sheet separation roller 5.

[0081] At this time, after the membrane portion located between the two rows of electrode sheets in the membrane tensioning conveyor pair leaves the membrane tensioning conveyor pair, the electrode sheet separating roller 5 is supported by the membrane portion located between the two electrode sheets below it. Simultaneously, as the membrane portion below the electrode sheet separating roller 5 leaves the electrode sheet separating roller 5, the electrode sheet separating roller 5 contacts the electrode sheet and directly presses the electrode sheet into the receiving groove 4, while simultaneously conveying the electrode sheet in the receiving groove 4 into the electrode sheet collecting cavity 30.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A power battery electrode sheet forming and cutting machine with automatic electrode sheet separation function, comprising a frame (1), a membrane conveying line (2) disposed on the frame (1), and a membrane cutting section disposed on the membrane conveying line (2), characterized in that, The tail end of the membrane delivery line (2) is provided with an electrode sheet separation mechanism, wherein the electrode sheet separation mechanism includes: The electrode separation platform (3) has the same height as the platform height of the membrane conveying line (2), and the top of the electrode separation platform (3) is provided with receiving grooves (4) for receiving the electrode sheets separated from the membrane corresponding to each electrode sheet. The electrode separation roller (5) is rotatably mounted on the electrode separation table (3). The surface of the electrode separation roller (5) has an annular protrusion (6) corresponding to each electrode sheet, and the bottom of the circumferential surface of the annular protrusion (6) extends into the receiving groove (4) directly below it. The membrane tensioning conveyor pair is provided with two sets of synchronously opposite rotating conveyors (7) arranged concentrically. The two sets of rotating conveyors (7) are arranged inside and outside, and are used to continue to transport the membrane downstream of the electrode sheet separation roller (5) in a clamping state. The separating roller lifts the upper swing arm (8), the bottom end of which is fixedly installed on the transverse support shaft (9), and the top end of which extends into the interior of the membrane tensioning track pair for pushing the membrane part conveyed by the membrane tensioning track pair. The lower swing arm (10) for lifting the separation roller is fixedly installed on the transverse support shaft (9) at its top end and connected to the lifting link (11) for lifting the separation roller at its bottom end. The lifting link (11) for lifting the separation roller is slidably set on the electrode sheet separation platform (3) in the height direction. The electrode separation roller (5) is fixedly connected to the bottom end of the separation roller lifting link (11) via the separation roller seat (12), and the separation roller seat (12) is slidably mounted on the electrode separation platform (3) in the height direction. The top of the separation roller seat (12) is connected to the separation roller pressing spring (13). The electrode plate separation platform (3) is fixedly connected to two sides of the separation roller bracket (14). The separation roller seat (12) is slidably mounted on the separation roller bracket (14) in the height direction. Both ends of the transverse support shaft (9) are rotatably mounted on the separation roller bracket (14). The top end of the separation roller pressure spring (13) is connected to the separation roller bracket (14). The rotary track (7) is rotatably mounted on the top end of the separation roller bracket (14). The separation roller lifting link (11) includes a first link (11.1) and a second link (11.2). The top end of the first link (11.1) is rotatably connected to the bottom end of the separation roller lifting swing arm (10). The top end of the second link (11.2) is rotatably connected to the bottom end of the first link (11.1). The second link (11.2) is slidably mounted on the separation roller bracket (14) in the height direction.

2. The power battery electrode sheet forming and cutting machine with automatic electrode sheet separation function according to claim 1, characterized in that, Each set of rotary tracks (7) is equidistantly arranged in the width direction of the film conveyor frame, and the lifting arm (8) of the separating roller is provided with one corresponding to the interval between two adjacent rotary tracks (7) in the same set. Both ends of the rotary track (7) are fitted with a rotating shaft support plate (15) to keep it in an arc shape, and multiple track drive shafts (16) are installed between the rotating shaft support plates (15). The track drive shafts (16) of two adjacent rotary tracks (7) in the same set are connected at opposite ends, and each set of rotary tracks (7) has a track drive shaft (16) whose end extends out of the rotating shaft support plate (15) and is connected to a track drive gear (17). The two track drive gears (17) mesh to drive the two rotary tracks (7) to rotate synchronously in opposite directions, and one of the track drive gears (17) is connected to a track drive bevel gear pair (18).

3. A power battery electrode sheet forming and cutting machine with automatic electrode sheet separation function according to claim 2, characterized in that, The electrode sheet separating roller (5) is connected to the end of the track drive bevel gear pair (18) on the same side by a separating roller drive bevel gear pair (19), and the separating roller drive bevel gear pair (19) and the track drive bevel gear pair (18) are connected by a power transmission shaft (20), and the power transmission shaft (20) is connected to the film conveying line (2) by a power transmission component (21) for cooperating with the film conveying line (2) to convey the film.

4. A power battery electrode sheet forming and cutting machine with automatic electrode sheet separation function according to claim 2, characterized in that, The outlet side of the membrane tensioning track pair is provided with a waste film take-up roller (22). The two ends of the waste film take-up roller (22) are rotatably supported on the take-up roller bracket (23). One end of the take-up roller bracket (23) is fixedly installed on the separation roller bracket (14). The height of the waste film take-up roller (22) is less than the height of the membrane tensioning track pair, and the take-up roller bracket (23) is inclined. Both ends of the waste film take-up roller (22) are rotatably installed with take-up roller seats (24). The take-up roller bracket (23) is provided with a take-up roller seat groove (25), and the take-up roller seat (24) is slidably installed in the take-up roller seat groove (25).

5. A power battery electrode sheet forming and cutting machine with automatic electrode sheet separation function according to claim 4, characterized in that, One of the track drive shafts (16) is connected to a winding drive bevel gear pair (26) at one end opposite to the track drive gear (17). The waste film winding roller (22) is connected to a winding drive bevel gear pair (27) at one end corresponding to the winding drive bevel gear pair (26). A winding drive telescopic shaft (28) is connected between the winding drive bevel gear pair (26) and the winding drive bevel gear pair (27). The outer winding shaft of the winding drive telescopic shaft (28) is rotatably mounted on the winding roller bracket (23). One end of the inner winding shaft of the winding roller drive telescopic shaft is inserted into the outer shaft. The end of the inner winding shaft connected to the winding drive gear pair is rotatably mounted on the winding roller seat (24).

6. A power battery electrode sheet forming and cutting machine with automatic electrode sheet separation function according to claim 3, characterized in that, The separating roller support (14) includes an upper frame (14.1), a lower frame (14.2), and a frame fastening knob (14.3). The lower frame (14.2) is fixedly installed on the electrode sheet separating table (3). The bottom end of the upper frame (14.1) is inserted into the cavity of the lower frame (14.2) from the top end. The frame fastening knob (14.3) is threaded onto the lower frame (14.2), and its inner end abuts against the upper frame (14.1) by inserting into the cavity of the lower frame (14.2) to fix the upper frame (14.1). The second connecting rod (11.2) includes an upper rod body (11.2.1), a lower rod body (11.2.2), and a rod fastening knob (11.2.3). The upper rod body (11.2.1) is rotatably mounted on the upper frame (14.1), and its bottom end is inserted into the cavity of the lower rod body (11.2.2) from the top end. The lower rod body (11.2.2) is rotatably mounted on the lower frame (14.2), and its bottom end is fixedly connected to a spring seat. The rod fastening knob (11.2.3) is threaded onto the lower rod body (11.2.2), and its inner end is inserted into the cavity of the lower rod body (11.2.2) to press against the upper rod body (11.2.1) to fix the upper rod body (11.2.1).

7. A power battery electrode sheet forming and cutting machine with automatic electrode sheet separation function according to claim 6, characterized in that, The power transmission shaft (20) includes an upper shaft and a lower shaft. The power transmission component (21) is connected to the lower shaft. The lower shaft is rotatably mounted on the lower frame (14.2). The upper shaft is rotatably mounted on the upper frame (14.1). The top end of the upper shaft is connected to the track drive bevel gear pair (18). The bottom end of the upper shaft is retractable and can be inserted into the shaft cavity from the top end of the lower shaft.

8. A power battery electrode sheet forming and cutting machine with automatic electrode sheet separation function according to any one of claims 1 to 7, characterized in that, The tail end of the electrode sheet separation stage (3) is provided with an electrode sheet collection box (29). The electrode sheet collection box (29) is provided with electrode sheet collection cavities (30) that are distributed one-to-one with each receiving groove (4). The tail end face of the electrode sheet collection box (29) is provided with a cavity door (31) that is detachable for each electrode sheet collection cavity (30). The distance between the upstream end of the receiving groove (4) and the upstream end of the top entrance of the electrode sheet collection cavity (30) is set to be less than the length of the electrode sheet.

9. A power battery electrode sheet forming and cutting machine with automatic electrode sheet separation function according to claim 8, characterized in that, The electrode collection cavity (30) is provided with receiving plates (32) arranged in a front-to-back arrangement. The opposite ends of the two receiving plates (32) are rotatably mounted on the electrode collection box (29) via a lowering shaft (33). The end of the lowering shaft (33) is connected to the separating roller seat (12) via a lowering transmission component (34). The lowering transmission component is configured such that when the separating roller seat (12) is at its highest position, the two receiving plates (32) are in a vertically open state with the end away from the lowering shaft (33) facing downwards, and when the separating roller seat (12) is at its lowest position, the two receiving plates (32) are in a horizontally closed state.

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