Automatic material changing and belt splicing device capable of removing dust

Abstract

The utility model relates to an automatic material changing and belt connecting device capable of removing dust. The belt receiving mechanism comprises two belt receiving suction plates which are oppositely arranged on the mounting seat, the two belt receiving suction plates can be close to each other or far away from each other, one of the belt receiving suction plates is provided with a dust suction channel, an avoiding groove and a dust suction hole, the dust suction channel and the avoiding groove extend in the same direction, and the dust suction hole is communicated with the dust suction channel. The dust suction channel penetrates through the belt receiving suction plate, a dust suction opening is formed in the side wall of the belt receiving suction plate, the dust suction hole is formed in the receding groove and communicates with the dust suction channel and the receding groove, and negative pressure is connected into the dust suction opening; the cutting mechanism comprises a cutter, the cutter is fixedly connected to the belt receiving suction plate which is arranged opposite to the avoiding groove, and the cutter is arranged right opposite to the avoiding groove; by means of the negative pressure dust suction function, dust pollution caused by material roll cutting is reduced, the cleanliness of a workshop is guaranteed, and the quality of a battery cell is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to an automatic material-changing and belt-joining device capable of removing dust. Background Art

[0002] In the lithium battery production process, lithium battery winding equipment is needed to assemble the positive electrode sheet, negative electrode sheet and diaphragm material of the battery into battery cells through continuous rotation, and the cutting and splicing of the electrode sheet rolls generally need to be completed with the help of an automatic material changing and splicing mechanism.

[0003] The existing automatic material change and tape splicing mechanism aligns the old and new pole pieces and then cuts them, connects the tail of the old pole piece with the head of the new pole piece through tape, and completes the automatic pole piece change. However, when cutting the new and old pole pieces, dust is easily generated and adheres to the pole pieces, affecting the quality of the battery cell. Summary of the invention

[0004] To this end, the technical problem to be solved by the utility model is to improve the quality of battery cells, and further provide a dust-removing automatic material changing and splicing device to reduce dust pollution generated by cutting material rolls, ensure the cleanliness of the workshop, and improve the quality of battery cells.

[0005] In order to solve the above technical problems, the utility model provides a dust-removable automatic material-changing and belt-joining device, comprising:

[0006] Mounting seat;

[0007] The belt connection mechanism comprises two belt connection suction plates arranged relatively on the mounting seat, the two belt connection suction plates are arranged to be able to approach or move away from each other, one of the belt connection suction plates is provided with a dust extraction channel, an avoidance groove and a dust suction hole, the dust extraction channel and the avoidance groove extend in the same direction, the dust extraction channel passes through the belt connection suction plate and forms a dust suction port on the side wall of the belt connection suction plate, the dust suction hole is arranged in the avoidance groove and connects the dust extraction channel and the avoidance groove, and the dust suction port is connected to negative pressure;

[0008] The cutting mechanism comprises a cutting knife, wherein the cutting knife is fixedly connected to the belt connecting suction plate arranged opposite to the avoiding groove, and the cutting knife is arranged directly facing the avoiding groove.

[0009] In one embodiment of the utility model, the belt connecting mechanism further comprises a first driving mechanism disposed on the mounting seat, the first driving mechanism comprises two first drivers, and the two first drivers respectively drive the two belt connecting suction plates to move closer to or away from each other.

[0010] In one embodiment of the utility model, the belt connecting mechanism further comprises a second driving mechanism disposed on the mounting seat, the second driving mechanism comprises two second drivers, and the two second drivers respectively drive the two belt connecting suction plates to rotate.

[0011] In one embodiment of the present invention, the dust extraction channel is arranged on a side of the avoidance groove away from the cutter.

[0012] In one embodiment of the utility model, the plurality of dust suction holes are arranged on the groove surface of the avoidance groove opposite to the cutter, and the groove surface is arranged as a plane structure or a curved structure; the plurality of dust suction holes are linearly distributed along the length direction of the avoidance groove, and the apertures of the plurality of dust suction holes gradually increase in the direction away from the negative pressure source.

[0013] In one embodiment of the present invention, the belt connecting mechanism includes a guide rail arranged on the mounting seat and two mounting plates slidably arranged on the guide rail, and the two mounting plates are respectively connected to the corresponding first drivers.

[0014] In one embodiment of the utility model, the mounting plate arranged opposite to the avoidance groove is provided with a third driver, and the belt connection suction plate arranged opposite to the avoidance groove is arranged on the output end of the third driver.

[0015] In one embodiment of the utility model, the two belt connection suction plates are each provided with two suction surfaces, the two suction surfaces are vertically arranged, and the two suction surfaces are each provided with a plurality of vacuum suction holes, and the avoidance groove is arranged on one of the suction surfaces.

[0016] In one embodiment of the utility model, it also includes a fixed adjustment mechanism, which includes a first waste collecting shaft, a second waste collecting shaft and a third driving mechanism. The third driving mechanism drives the first waste collecting shaft and the second waste collecting shaft to rotate, and the first waste collecting shaft and the second waste collecting shaft are both provided with slots.

[0017] In one embodiment of the utility model, a first guide roller and a second guide roller are provided between the fixed adjustment mechanism and the belt connecting mechanism, the first guide roller and the second guide roller are arranged opposite to each other, and the first guide roller and the second guide roller are both slidably connected to the guide rail, the first guide roller and the second guide roller move synchronously with the two belt connecting suction plates respectively, the first guide roller is arranged between the first waste collecting shaft and the belt connecting mechanism, the second guide roller is arranged between the second waste collecting shaft and the belt connecting mechanism, and the first waste collecting shaft and the second waste collecting shaft rotate, and the first guide roller and the second guide roller are arranged in parallel.

[0018] In one embodiment of the present invention, a fourth driving mechanism is further included, and the fourth driving mechanism drives the fixed adjustment mechanism to move along the width direction of the pole piece strip.

[0019] The above technical solution of the utility model has the following advantages compared with the prior art:

[0020] The utility model discloses a dust-removable automatic material changing and belt splicing device, wherein the belt splicing mechanism comprises a mounting seat, two belt splicing suction plates relatively arranged on the mounting seat, wherein one of the belt splicing suction plates is provided with a dust extraction channel, an avoidance groove and a dust suction hole, the dust extraction channel and the avoidance groove extend in the same direction, the dust extraction channel passes through the belt splicing suction plate and forms a dust suction port on the side wall of the belt splicing suction plate, the dust suction hole is arranged in the avoidance groove and connects the dust extraction channel and the avoidance groove, and the dust suction port is connected to negative pressure; by arranging the dust extraction channel and the dust suction hole on the belt splicing suction plate and introducing negative pressure, the belt splicing suction plate increases the negative pressure dust function, reduces the dust pollution in the material strip cutting process, improves the cleanliness of the workshop, and improves the quality of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0022] Figure 1 It is a structural schematic diagram of the front view of the automatic material changing and belt splicing device with dust removal in the preferred embodiment of the utility model.

[0023] Figure 2 for Figure 1 The structure schematic diagram of the front view of two belt splicing suction plates and a cutter of the automatic material changing belt splicing device with dust removal is shown.

[0024] Figure 3 for Figure 2 The structural schematic diagram of the side view of the belt suction plate shown.

[0025] Figure 4 for Figure 3 A structural schematic diagram of the belt suction plate shown.

[0026] Figure 5 for Figure 1 The structure schematic diagram of the first waste collecting shaft and the second waste collecting shaft of the automatic material changing and splicing device with dust removal is shown.

[0027] Explanation of the reference numerals in the specification: 1. third driver; 101. belt connection suction plate; 103. dust suction port; 104. avoidance groove; 106. suction hole; 107. dust suction hole; 21. first driver; 31. second driver; 4. third driving mechanism; 41. first waste collecting shaft; 42. second waste collecting shaft; 51. first guide roller; 52. second guide roller; 6. dust suction port; 7. gap; 8. new pole piece strip; 9. old pole piece strip; 10. belt connection mechanism; 11. cutter; 12. adsorption surface; 13. guide rail; 14. slot; 15. mounting plate. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0029] Example

[0030] In one embodiment of the present invention, referring to Figure 1 and 2 As shown, a dust-removable automatic material changing and tape splicing device comprises an unwinding mechanism, a cutting mechanism, a tape splicing mechanism 10 and a fixed adjustment mechanism, wherein the unwinding mechanism is used to place a pole piece roll, the cutting mechanism is used to cut the pole piece roll, the tape splicing mechanism 10 is used to splice a new pole piece roll with an old pole piece roll, the old pole piece roll is a roll on a production line, the initial end of the pole piece roll placed on the unwinding mechanism can be arranged on the fixed adjustment mechanism after passing through the cutting mechanism and the tape splicing mechanism 10, the fixed adjustment mechanism is used to fix the new pole piece roll, and push the new pole piece roll along the width direction of the new pole piece roll, so that the new pole piece roll is aligned with the old pole piece roll, which is convenient for cutting and splicing the new pole piece roll with the old pole piece roll, and the tape splicing mechanism 10 comprises,

[0031] Mounting seat;

[0032] Relative to the two belt suction plates 101 arranged on the mounting seat, the two belt suction plates 101 are both installed on the mounting seat, and a gap 7 is provided between the two belt suction plates 101. The two belt suction plates 101 are arranged to be able to approach or move away from each other to absorb and fix the new pole piece material strip 8 and the old pole piece material strip 9 in the gap 7. The old pole piece material strip 9 passes through the gap 7 and moves to one side of the production line. The belt suction plate 101 located on the left side is provided with a dust extraction channel, an avoidance groove 104 and a dust suction hole 107. The belt suction plate 101 is used to absorb and fix the pole piece material strip and the adhesive tape. The dust extraction channel and the avoidance groove 104 extends in the same direction, the dust extraction channel penetrates the belt connection suction plate 101 and forms a dust suction port 103 on the side wall of the belt connection suction plate 101, the dust suction hole 107 is arranged in the avoidance groove 104 and connects the dust extraction channel and the avoidance groove 104, the dust suction port 103 is connected to negative pressure, and the dust suction hole 107 forms a vacuum suction force when the dust suction port 103 is connected to negative pressure, which is used to absorb dust and debris generated when cutting the material strip; the avoidance groove 104 is used to avoid the blade of the cutter 11 of the pole piece cutting mechanism to avoid the passivation of the cutter 11, and the avoidance groove 104 is also conducive to collecting dust or debris. In this embodiment, the cutter 11 is located on the right side, and the relative avoidance groove 104 is located on the left side. In other embodiments, the settings can also be reversed, as long as the avoidance groove 104 is located on the opposite side of the cutter 11.

[0033] In one embodiment of the present invention, referring to Figure 1 and 2 As shown, in order to improve the belt splicing efficiency, the belt splicing mechanism 10 also includes a first driving mechanism arranged on the mounting seat, and the first driving mechanism includes two first drivers 21, and the two first drivers 21 respectively drive the two belt splicing suction plates 101 to move closer to or away from each other.

[0034] In one embodiment of the present invention, referring to Figure 1 As shown, in order for the tape splicing suction plate 101 to absorb the adhesive tape and transfer the adhesive tape to the joint of the new pole piece stock roll and the old pole piece stock roll, the tape splicing mechanism 10 also includes a second driving mechanism arranged on the mounting seat, and the second driving mechanism includes two second drivers 31, and the two second drivers 31 respectively drive the two tape splicing suction plates 101 to rotate.

[0035] In one embodiment of the present invention, referring to Figure 2 As shown, the dust extraction channel is arranged on one side of the avoidance groove 104, and the dust suction hole 107 is arranged in the avoidance groove 104 and communicates with the dust extraction channel on one side. Dust and debris generated when cutting the material strip will enter the avoidance groove 104, and the dust suction hole 107 can quickly absorb them to avoid pollution. The dust extraction channel is arranged on one side of the avoidance groove 104 to facilitate communication with the dust suction hole 107, so as to facilitate the manufacture of the dust suction hole 107.

[0036] In one embodiment of the present invention, referring to Figure 3 As shown, the multiple dust suction holes 107 are all arranged on the side of the avoidance groove 104 opposite to the cutter 11, which is conducive to the dust suction holes 107 being aligned with the cutting position, and can improve the absorption rate of dust and debris. The bottom surface is set to a plane structure or a curved structure. Compared with the plane structure, the curved structure makes it easier for dust or debris to slide and enter the dust suction holes 107; since the material belt and the cutter 11 have a certain width, the multiple dust suction holes 107 are linearly distributed along the length direction of the dust extraction channel, which is conducive to the matching of the dust suction holes 107 with the cutting position, and improves the collection efficiency of dust and debris. The apertures of the multiple dust suction holes 107 gradually increase in the direction away from the negative pressure source, which is conducive to ensuring that the dust suction holes 107 far away from the negative pressure source have sufficient absorption force.

[0037] In one embodiment of the present invention, referring to Figure 2 As shown, the cutting mechanism includes a cutter 11, which is fixedly connected to the tape connection suction plate 101 arranged opposite to the avoidance groove 104, and the cutter 11 is arranged directly opposite to the avoidance groove 104. The cutter 11 can extend into the gap 7 to cut the overlapping new pole piece strip 8 and the old pole piece strip 9, so that the new pole piece strip 8 and the old pole piece strip 9 are aligned for easy splicing, and the avoidance groove 104 is used to avoid the blade of the cutter 11.

[0038] In one embodiment of the present invention, referring to Figure 1 As shown, the belt connection mechanism 10 includes a guide rail 13 arranged on the mounting seat and two mounting plates 15 slidably arranged on the guide rail 13, and the driving ends of the two first drivers 21 are respectively connected to the two mounting plates 15. A third driver 1 is arranged on the mounting plate 15 arranged opposite to the avoidance groove 104, and the belt connection suction plate 101 arranged opposite to the avoidance groove 104 is arranged on the output end of the third driver 1. The function of the third driver 1 is to fine-tune the distance between the two belt connection suction plates.

[0039] In one embodiment of the present invention, referring to Figure 1 As shown, the two tape-joining suction plates 101 are each provided with two adsorption surfaces 12, the two adsorption surfaces 12 are vertically arranged, and the two adsorption surfaces 12 are each provided with a plurality of vacuum suction holes 106, and the avoidance groove 104 is arranged on one of the adsorption surfaces 12. Of the mutually perpendicular adsorption surfaces 12 of the two tape-joining suction plates 101, one adsorption surface 12 is used to assist in adsorbing and pressing the electrode sheet, and the other adsorption surface 12 adsorbs the adhesive paper. The second driver 31 drives the tape-joining suction plate 101 to rotate, so that the adsorption surface 12 adsorbing the adhesive paper is transferred into the gap 7, and the adsorption surface 12 controls the adsorption force to put the adhesive paper into the joint of the new electrode sheet roll and the old electrode sheet roll.

[0040] In one embodiment of the present invention, referring to Figure 1 , Figure 5 As shown, the fixed adjustment mechanism includes a first scrap collecting shaft 41, a second scrap collecting shaft 42 and a third driving mechanism 4. The third driving mechanism 4 drives the first scrap collecting shaft 41 and the second scrap collecting shaft 42 to rotate. The output end of the third driving mechanism 4 is connected to the first scrap collecting shaft 41 and is transmission-connected to the second scrap collecting shaft 42. The first scrap collecting shaft 41 and the second scrap collecting shaft 42 are both provided with a slot 14. The end of the new pole piece strip 8 passes through the slot 14 of the first scrap collecting shaft 41. The new pole piece strip 8 is fixed. When the fixed adjustment mechanism is pushed to move along the width direction of the strip, it can be aligned with the old pole piece strip 9. After the cutter 11 cuts the strip, the first scrap collecting shaft 41 or the second scrap collecting shaft 42 rotates to wind up the scrap strip, and the scrap strip can also be taken out manually.

[0041] In one embodiment of the present invention, referring to Figure 1 As shown, a first guide roller 51 and a second guide roller 52 are provided between the fixed adjustment mechanism and the belt connecting mechanism 10, the first guide roller 51 and the second guide roller 52 are arranged opposite to each other, and the first guide roller 51 and the second guide roller 52 are respectively installed on the corresponding two mounting plates 15, the first guide roller 51 and the second guide roller 52 move synchronously with the two belt connecting suction plates 101 respectively, the first guide roller 51 is arranged between the first waste collecting shaft 41 and the belt connecting mechanism 10, and the second guide roller 51 is arranged between the second waste collecting shaft 42 and the belt connecting mechanism 10, and the new pole piece strip 8 coming out of the gap 7 passes through the first guide roller 51 or the second guide roller 52 and reaches the fixed adjustment mechanism.

[0042] In one embodiment of the utility model, a fourth driving mechanism is further included, and the fourth driving mechanism drives the fixed adjustment mechanism to move along the width direction of the pole piece strip, so as to adjust the position of the new pole piece strip 8 to align it with the old pole piece strip 9.

[0043] The working principle of the dust-removable automatic material-changing and belt-joining device of the utility model is:

[0044] The old pole piece strip 9 continuously passes through the gap 7 and moves toward the production line. When the old pole piece strip 9 is about to be used up, the new pole piece strip 8 and the old pole piece strip 9 need to be connected. The end of the new pole piece strip 8 passes through the gap and the groove 14 and is fixed. The fourth driving mechanism drives the new pole piece strip 8 to align it with the old pole piece strip 9. Negative pressure is introduced into the dust suction port 103. The two connecting suction plates 101 approach each other to adsorb and press the overlapping new pole piece strip 8 and the old pole piece strip 9. When the cutter 11 of the cutting mechanism cuts the strip in the gap 7, the dust suction port absorbs the dust particles generated when cutting the strip through negative pressure. Under the action of negative pressure, the dust enters the avoidance groove 104 and then enters the dust suction hole 107, and leaves from the dust suction port 103 through the dust suction channel and is collected, thereby avoiding dust adhering to the pole piece, reducing dust pollution, and improving the quality of the battery cell.

[0045] The adsorption surfaces 12 of the two adsorption plates 101 for adsorbing the pole pieces both have an upper adsorption surface and a lower adsorption surface whose vacuum degree can be controlled independently.

[0046] The upper suction surface of the tape-joining suction plate 101 corresponding to the new electrode sheet roll breaks the vacuum to release the electrode sheet, and the lower suction surface sucks the cut end of the new electrode sheet. The first waste collection shaft 51 reels the waste or removes the waste manually. The lower suction surface of the tape-joining suction plate 101 corresponding to the old electrode sheet roll breaks the vacuum to release the electrode sheet, and the upper suction surface sucks the cut end of the old electrode sheet. At this time, the head of the new roll and the tail of the old roll are released respectively.

[0047] The two splicing suction plates 101 are driven close to each other, the splicing suction plate 101 corresponding to the new electrode sheet roll is driven to adsorb the new and old electrode sheets, the splicing suction plate 101 corresponding to the old electrode sheet roll breaks the vacuum and is driven away from the splicing suction plate 101 corresponding to the new electrode sheet roll, and then the splicing suction plate 101 corresponding to the old electrode sheet roll is driven to flip, and the adsorption surface 12 of the adsorption tape of the splicing suction plate 101 corresponding to the old electrode sheet roll faces the joint of the new and old electrode sheets, and the splicing suction plate 101 corresponding to the old electrode sheet roll is driven close to the splicing suction plate 101 corresponding to the new electrode sheet roll to attach the tape.

[0048] The splicing suction plate 101 corresponding to the old pole piece stock roll absorbs the tape and the old and new pole pieces, the splicing suction plate 101 corresponding to the new pole piece stock roll is driven away from the splicing suction plate 101 corresponding to the old pole piece stock roll, the splicing suction plate 101 corresponding to the new pole piece stock roll is driven to flip, the splicing suction surface 12 of the splicing tape of the splicing suction plate 101 corresponding to the new pole piece stock roll faces the joint of the new and old pole pieces, the splicing suction plate 101 corresponding to the new pole piece stock roll is driven close to the splicing suction plate 101 corresponding to the old pole piece stock roll to attach the tape to the other side of the joint of the new and old pole pieces, completing the attachment of the tapes on both sides of the new and old pole pieces.

[0049] After the new and old pole pieces are connected, the automatic reel-changing and connecting device is driven to restore the initial state, waiting for the next connection of the new and old pole pieces.

[0050] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A dust-removable automatic material-changing and belt-joining device, characterized in that: include: Mounting seat; The belt connection mechanism comprises two belt connection suction plates arranged relatively on the mounting seat, the two belt connection suction plates are arranged to be able to approach or move away from each other, one of the belt connection suction plates is provided with a dust extraction channel, an avoidance groove and a dust suction hole, the dust extraction channel and the avoidance groove extend in the same direction, the dust extraction channel passes through the belt connection suction plate and forms a dust suction port on the side wall of the belt connection suction plate, the dust suction hole is arranged in the avoidance groove and connects the dust extraction channel and the avoidance groove, and the dust suction port is connected to negative pressure; The cutting mechanism comprises a cutting knife, wherein the cutting knife is fixedly connected to the belt connecting suction plate arranged opposite to the avoiding groove, and the cutting knife is arranged directly facing the avoiding groove.

2. The dust-removable automatic material-changing and belt-splicing device according to claim 1, characterized in that: The belt connecting mechanism also includes a first driving mechanism arranged on the mounting seat, and the first driving mechanism includes two first drivers, and the two first drivers respectively drive the two belt connecting suction plates to move closer to or away from each other.

3. A dust-removable automatic material-changing and belt-splicing device according to claim 1 or 2, characterized in that: The belt connecting mechanism also includes a second driving mechanism arranged on the mounting seat, and the second driving mechanism includes two second drivers, and the two second drivers respectively drive the two belt connecting suction plates to rotate.

4. The automatic material changing and belt splicing device capable of dust removal according to claim 1, characterized in that: The dust extraction channel is arranged on a side of the avoidance groove away from the cutter.

5. The automatic material changing and belt splicing device capable of dust removal according to claim 1 or 4, characterized in that: The multiple dust suction holes are all arranged on the groove surface of the avoidance groove opposite to the cutter, and the groove surface is set to a plane structure or a curved structure; the multiple dust suction holes are linearly distributed along the length direction of the avoidance groove, and the apertures of the multiple dust suction holes gradually increase in the direction away from the negative pressure source.

6. The dust-removable automatic material-changing and belt-splicing device according to claim 2, characterized in that: The belt connecting mechanism comprises a guide rail arranged on the mounting seat and two mounting plates slidably arranged on the guide rail, and the two mounting plates are respectively connected to the corresponding first drivers.

7. The dust-removable automatic material-changing and belt-splicing device according to claim 6, characterized in that: The mounting plate arranged opposite to the avoidance groove is provided with a third driver, and the belt connection suction plate arranged opposite to the avoidance groove is arranged on the output end of the third driver.

8. The automatic material changing and belt splicing device capable of dust removal according to claim 1, characterized in that: The two belt connection suction plates are each provided with two suction surfaces, the two suction surfaces are vertically arranged, and the two suction surfaces are each provided with a plurality of vacuum suction holes, and the avoidance groove is arranged on one of the suction surfaces.

9. The automatic material changing and belt splicing device capable of dust removal according to claim 1, characterized in that: It also includes a fixed adjustment mechanism, which includes a first waste collecting shaft, a second waste collecting shaft and a third driving mechanism. The third driving mechanism drives the first waste collecting shaft and the second waste collecting shaft to rotate. The first waste collecting shaft and the second waste collecting shaft are both provided with slots.

10. The automatic material changing and belt splicing device capable of dust removal according to claim 9, characterized in that: A first guide roller and a second guide roller are provided between the fixed adjustment mechanism and the belt connection mechanism, and the first guide roller and the second guide roller are arranged opposite to each other.

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