CN209668413U - Coil replacing mechanism - Google Patents

Abstract

A kind of coil replacing mechanism, it includes the first material spool, the second material spool, cuts component, by roll assembly and rotating device, first material spool and/or the second material spool are to be arranged multiple material volumes, one in first material spool and second material spool when being dispensing shaft, another is stock axis.When that will be used up on the dispensing shaft in the old material volume for unreeling station and having unreeled, it is described to clamp material strip by roll assembly, it is described to cut material strip described in component severing, the rotating device clamps the material strip overturning by roll assembly with by described, makes the back side by the material strip on the back side of the material strip of severing and the stock axis on the same face.Being connected together by the material strip on the material strip of severing and the stock axis makes the stock axis become new dispensing shaft.So set, improving change of lap efficiency.

Description

Roll changing mechanism

technical field

The utility model relates to a roll changing mechanism, which belongs to the technical field of automation equipment.

Background technique

In the battery production process, it is often necessary to use coiled materials, such as pole pieces, separators and other materials, which are usually used in the form of coiled materials, and then enter the machine after being rotated and discharged by the material reel. When the roll material roll is used up, it is necessary to start the preparatory roll to complete the roll change. The existing automatic roll change mechanism mostly adopts two sets of suction cups on the left and right, after absorbing the material of the material roll and the stock roll, cutting and then receiving the material. This type of roll changing mechanism has a complex structure and takes up a lot of space; when receiving materials, tapes must be prepared to fit the tail of the old material roll and the head of the new material roll.

Utility model content

The purpose of the utility model is to provide a roll changing mechanism with high roll changing efficiency.

In order to achieve the above purpose, the utility model adopts the following technical solutions: a roll changing mechanism, which includes a first material reel, a second material reel, a cutting assembly, a roller assembly and a rotating device, the first material reel and/or Or the second material reel is used to sleeve a plurality of material reels, and when one of the first material reel and the second material reel is a discharge shaft, the other is a material preparation shaft; When it is in the unwinding station and the old material roll that has been unwound is about to run out, the roller assembly clamps the material tape, the cutting assembly cuts the material tape, and the rotating device is carried by the roller The component clamps the material tape and turns over, so that the back of the cut material tape is on the same surface as the back of the material tape on the preparation shaft, and the cut material tape and the material tape on the preparation shaft are on the same surface. Banding together makes the stock shaft a new discharge shaft.

As a further improved technical solution of the utility model, the back side of the cut material tape and the back side of the material tape on the preparation shaft are on the same plane and connected together by adhesive tape.

As a further improved technical solution of the present invention, the roller assembly includes a first roller, a second roller and a roller for driving the first roller and/or the second roller to approach or move away from each other. Roller driving device; when the old material roll on the discharge shaft is about to be used up, the first roller and the second roller clamp the material tape released by the discharge shaft.

As a further improved technical solution of the present invention, the rotating device can drive one of the first backing roller and the second backing roller to rotate around the other.

As a further improved technical solution of the utility model, the rotating device includes a rotating drive member and a rotating guide arranged along the circumference, and the first roller and/or the second roller are slidably connected to the corresponding rotating guide , the rotary driving member is connected to and drives the corresponding first roller and/or the second roller to move along the circle.

As a further improved technical solution of the utility model, the radius of the circle is the sum of the radii of the first roller and the second roller, wherein the center of the circle is when the first roller and the When the second roller clamps the material strip, the center of the roller corresponding to the stock preparation shaft where the new material roll is located.

As a further improved technical solution of the utility model, when the back side of the cut material tape is on the same surface as the back side of the material tape on the preparation shaft,

The relative movement between the roller assembly and the stock preparation shaft brings them close to each other, and connects the cut material tape with the stock tape on the stock preparation shaft; or

The overturned material tape is dragged by the transfer mechanism to be connected with the material tape on the preparation shaft.

As a further improved technical solution of the utility model, the roll change mechanism also includes a displacement drive device, which drives the discharge shaft forward or backward, so that the next preparatory roll reaches the place where the original old roll is located. unwinding station.

As a further improved technical solution of the present invention, the first material reel and/or the second material reel include a material reel driving device, a mounting shaft, a barrel, a fixing component and a linkage component, wherein the material reel driving device Connect and drive the installation shaft to rotate; the installation shaft is provided with a number of the material cylinders corresponding to the material rolls at intervals, and the material rolls are sleeved on the corresponding material cylinders; the material cylinders are rotatable It is arranged on the installation shaft; the fixing component is used to fix the relative position of the material roll and the installation shaft; the linkage component is used to link the corresponding material roll and the installation shaft to rotate together.

As a further improved technical solution of the present invention, the material cylinder is rotatably arranged on the installation shaft through a bearing, and the bearing includes an inner ring bearing and an outer ring bearing, and the inner ring bearing is relative to the installation shaft. Rotate, the outer ring bearing does not rotate relative to the inner ring bearing when the linkage assembly is not in action.

Compared with the prior art, the utility model makes the back side of the cut material tape and the back side of the material tape on the preparation shaft be on the same plane by setting the rotating device, so as to facilitate the connection of the two; in addition, the first material reel and the / or the second material reel is used to cover multiple material rolls, which reduces the frequency of material preparation and improves the efficiency of roll change.

Description of drawings

Fig. 1 is a left view of the first material reel or the second material reel of the present invention.

FIG. 2 is a partial cross-sectional schematic view of FIG. 1 .

Fig. 3 is a front view of the roll changing mechanism of the present invention when the roll on the unwinding shaft is about to run out.

FIG. 4 and FIG. 5 are schematic diagrams of the material tape being turned over after cutting.

Fig. 6 is a left view of the roll changing mechanism of the present invention.

Detailed ways

Please refer to Fig. 1 to Fig. 6, the utility model discloses a roll changing mechanism, which includes a first material reel 1, a second material reel 2, a cutting assembly 3, a roller assembly 4 and a rotating device. The first material reel 1 is used in conjunction with the second material reel 2, and when one of them is a discharge reel, the other is a material preparation reel. In order to avoid frequent material preparation, multiple groups of material rolls can be stored on the first material reel 1 and/or the second material reel 2 , where multiple groups means greater than or equal to two groups. Preferably, multiple groups of material rolls are stored on the first material reel 1 and the second material reel 2 .

In order to describe the specific implementation of the utility model more clearly, the material roll that is in the unwinding station on the unwinding shaft and has been unwound is called the old material roll; The material roll of the material roll is called the new material roll; the other material rolls on the unwinding shaft and the stocking shaft are called the preparatory material roll. When the old material roll on the unwinding shaft is about to be used up, the roll needs to be changed, and the new material roll at the unwinding station on the material preparation shaft is connected to the material belt released from the old material roll, and the old material roll is replaced by the old material roll. The unwound tape is separated so that the old roll can be replaced. Thus, the new reel replaces the old reel that is about to be used up. Correspondingly, the original unwinding reel carrying the old reel becomes the stock reel, and the original reel carrying the new reel becomes the unwinding reel. After the new material roll is connected, the unwinding shaft rotates to unwind. When the machine is running, the old material belt pulls the new material belt, and the new material belt is actively brought into each mechanism of the machine to start a new round of action. In one embodiment of the present invention, when the discharging shaft rotates to discharge the material, the stocking shaft does not move. In the illustrated embodiment of the utility model, when the old material roll on the unwinding shaft is about to be used up, the new material roll on the preparation shaft is connected to the material tape of the old material roll through an adhesive tape 8 , so as to realize the volume change.

Please refer to FIG. 3 , the material roll includes a first material roll 10 sleeved on the first material roll shaft 1 and a second material roll 20 sleeved on the second material roll shaft 2 . The discharge ends of the first material reel 1 and the second material reel 2 are provided with a passing roller 6, and the material tape on the unwinding reel is wound around the passing roller 6, guided by the passing roller 6, and transported forward.

Please refer to Fig. 2, in the illustrated embodiment of the utility model, in order to fix each group of preparatory material rolls and ensure that they do not interfere with each other during the unwinding process of the old material rolls, the first material reel 1 and/or Or the second material reel 2 includes an installation shaft 11 , a material cylinder 12 , a fixing assembly 13 , a linkage assembly 14 and a material reel driving device 15 . Only take described first material spool 1 as an example below to illustrate: described material spool driving device 15 is preferably geared motor, and it is connected and drives described installation shaft 11 to rotate, to realize unwinding; There are several material cylinders 12 corresponding to the first material rolls 10, and the first material rolls 10 are sleeved on the corresponding material cylinders 12; the material cylinders 12 are rotatably arranged on the installation shaft 11 The fixing assembly 13 is used to fix the relative position of the corresponding first material roll 10 and the installation shaft 11 ; the linkage assembly 14 is used to link the corresponding first material roll 10 and the installation shaft 11 to rotate together.

Specifically, the barrel 12 is rotatably arranged on the installation shaft 11 through a bearing 16, the bearing 16 includes an inner ring bearing 161 and an outer ring bearing 162, the inner ring bearing 161 is connected to the installation shaft 11, and The outer ring bearing 162 connects the cartridge 12 . After the fixing assembly 13 connects and fixes the first material reel 10 and the installation shaft 11, when the material reel driving device 15 drives the installation shaft 11 to rotate, the inner ring bearing 161 rotates, and the outer ring bearing 162 The relative inner ring bearing 161 does not rotate when the linkage assembly 14 is inactive.

Specifically, the fixing assembly 13 is provided in one-to-one correspondence with the barrel 12, the fixing assembly 13 is arranged on the installation shaft 11 or the barrel 12, and includes a fixing piece and a driving piece, the output end of the driving piece is connected to the fixing piece, Drive the fixing part close to and connect the first material roll 10 to fix the position of the first material roll 10 and the installation shaft 11 or the material cylinder 12, so that the first material roll 10 cannot move axially after being inserted into the installation shaft 11, so as to facilitate When changing the roll, it is docked at the unwinding station with the old material roll on the unwinding shaft or the new material roll on the preparation shaft. In one embodiment, the fixing assembly 13 includes a cylinder and a fixing block, wherein the main body of the cylinder is arranged on the installation shaft 11 or the barrel 12, the driving end of the cylinder is connected to the fixing block, and the cylinder can drive the fixing block into the first In the material roll 10 or block the position of the material roll to fix the first material roll 10 . Of course, in other embodiments, the fixing assembly 13 may also include air claws and clamps, wherein the air claws drive the clamps to open and close to clamp or loosen the first material roll 10 .

Specifically, the linkage assembly 14 is provided in one-to-one correspondence with the barrel 12, and includes an active linkage member 141, a driven linkage member 142 and a linkage driver, wherein the linkage driver is used to drive the active linkage member 141 to match the driven linkage member. 142 , so that the driven linkage member 142 can act together with the active linkage member 141 . In one embodiment of the present utility model, the active linkage member 141 is arranged on the installation shaft 11 or the inner ring bearing 161, and the driven linkage member 142 is arranged on the barrel 12 or the outer ring bearing 162; the linkage assembly 14 can It is a clutch or brake, which generally includes a driving part and a driven part, and can cooperate with butt joints to realize linkage.

The first material rolls 10 are sheathed on the material cylinder 12 in one-to-one correspondence. When the first material roll 10 is in place, the fixing assembly 13 acts, and the driving member drives the fixing member to move toward the corresponding first material roll 10 to contact and fix the corresponding first material roll 10 so that it cannot move axially. Since the material cylinder 12 is rotatably connected to the installation shaft 11 through the bearing 16, when the material reel driving device 15 drives the installation shaft 11 to rotate, each first material reel 10 above will not follow the rotation. When a certain first material roll 10 is used as a new material roll to replace the old material roll and needs to be unwound, its corresponding linkage assembly 14 will act, and the linkage drive will drive the active linkage member 141 to dock with the driven linkage member 142, thus, the material reel When the driving device 15 drives the installation shaft 11 to rotate, the active linkage member 141 follows and drives the driven linkage member 142 and the corresponding first material roll 10 to rotate. Through this design, the independent rotary discharge of each first material roll 10 is realized, and mutual interference is avoided.

Preferably, the installation shaft 11 cooperates with the fixing component 13 as a whole, and adopts an air expansion shaft, which includes a shaft body and an air expansion part. Please refer to Figure 2, when the external ventilation device 17 (equivalent to the driving part of the fixed assembly 13) ventilates into the shaft body, the inflatable part expands to fix the bearing 16 on the installation shaft 11, thereby tightening The bearing 16 , the barrel 12 and the first material roll 10 realize the position fixation of the first material roll 10 . When the linkage assembly 14 adopts a clutch, its active clutch part is arranged on the air expansion shaft, its driven clutch part is arranged on the barrel 12, the active clutch part communicates with another air circuit, and the external ventilation device (equivalent to the linkage drive device) can independently ventilate to the gas path of each active clutch part, so that the active clutch part corresponding to the roll to be unwound is docked with the driven clutch part to realize transmission.

Please refer to FIGS. 3 to 6, the roller assembly 4 includes a first roller 41, a second roller 42 and a mechanism for driving the first roller 41 and/or the second roller 42 to each other. Approaching or moving away from roller drive means (not shown). The material belt 100 released from the old material roll on the unwinding shaft passes between the first roller 41 and the second roller 42 . When the old material roll on the discharge shaft is about to be used up, the discharge shaft stops unwinding, and the roller driving device drives the first roller 41 and the second roller 42 to approach each other to clamp the material belt 100, which is convenient The cutting assembly 3 cuts the strip 100 . After changing rolls, the roller driving device drives the first roller 41 and the second roller 42 away from the release material tape 100 to start a new round of tape running. Specifically, the first roller 41 and the second roller 42 can move toward each other to approach each other, or only one roller can move toward the other roller.

In order to make the material belt face consistent, the rotating device drives the first roller 41 and/or the second roller 42 to rotate the material belt 100, so as to drive the end of the material belt 100 to turn over, which is convenient for the old material belt and the new material belt. When the tape is bonded, the back of the new tape is on the same side as the back of the old tape. It can be understood that the cut material tape mentioned in the present invention refers to the material tape left on the roll change mechanism after cutting, not the material tape removed with the old material roll.

Preferably, the rotating device is provided with two sets, respectively corresponding to the first roller 41 and the second roller 42, so that one roller can rotate around the other roller to lift the end of the material belt 100, so that the material belt The end of 100 is facing the new roll ready to replace the old roll. Specifically, the rotating device includes a rotating drive (preferably a motor) and a rotating guide arranged along the circumference A, the first roller 41 and the second roller 42 are slidably connected to the corresponding rotating guide, and the rotating driving member is connected and drives The corresponding rollers move along the circle A. Taking the first material reel 1 as the discharge shaft and the second material reel 2 as the stocking shaft as an example, the first roller 41 is the roller corresponding to the discharging shaft, and the second roller 42 is the roller corresponding to the stocking shaft . Please refer to shown in Figure 5, the circle center of this circle A is when the first roller 41 and the second roller 42 clamp the material belt 100, the roller that does not rotate (that is, the roller corresponding to the stocking shaft where the new material roll is located) , in the illustrated embodiment is the center of circle of the second roller 42); and the radius of the circle A is the sum of the radii of the first roller 41 and the second roller 42.

The cutting assembly 3 includes a cutter and a cutter driving device (not shown), wherein the cutter driving device is used to drive the cutter to approach or move away from the corresponding material strip. When the cutting knife driving device drives the cutting knife close to the corresponding material strip, the cutting knife cuts off the material strip discharged from the discharge shaft. Please refer to FIG. 3 , in the illustrated embodiment of the present invention, the cutting assembly 3 is disposed below the first roller 41 . In one embodiment of the present utility model, the cutter driving device includes a cutter driver (such as a motor or a cylinder, preferably a cylinder) and a cutter guide (such as a guide rail) arranged toward the strip, wherein the The cutter is slidingly connected with the cutter guide, and the cutter driver is connected and drives the cutter to move along the cutter guide.

In order to describe the reel changing principle of the utility model more specifically, the first material reel 1 is used as the unwinding reel, and the second material reel 2 is used as the material preparation reel as an example for illustration. Please refer to Fig. 3 , when the first material roll 10 unwound on the first material reel 1 is about to be exhausted and ready to be changed, the material reel driving device 15 corresponding to the first material reel 1 stops driving, and the roller The driving device drives the first roller 41 and the second roller 42 to approach each other to clamp the material belt 100, and the cutting assembly 3 cuts the material belt 100; at this time, the cut old material roll can be moved from the unwinding station Open; as shown in Figure 5, the rotating device drives the first roller 41 to rotate around the second roller 42 with the clamped material belt 100 along the circumference A, so that the end of the material belt 100 is turned up, and its inner surface Facing the new material roll (the second material roll 20), after the end of the old material band sticks on the new material end, the inner surface sticks below, and the back side of the new material band is on the same side as the back side of the old material band.

Specifically, when the end of the material tape is lifted, the roller assembly 4 may move toward the first material reel 1 or the second material reel 2, so that the end of the old material tape is bonded to the initial end of the new material end; It is the first material reel 1 or the second material reel 2 that moves towards the roller assembly 4, so that the initial end of the new material end is bonded to the end of the old material tape; a transfer mechanism can also be set, which drags the turned up old material tape The end of the machine moves towards the new material end, and finally achieves bonding. Preferably, the roller assembly 4 further includes a roller transfer mechanism (not shown), which is used to drive the first roller 41 and the second roller 42 to move toward the first material reel 1 . The first roller 41 rotates along the circumference A with the clamped material strip 100 around the second roller 42 until the end of the material belt 100 is lifted, and the roller transfer mechanism drives the two rollers to clamp the raised material belt 100 is close to abutting against the first material reel 1, and the material tape 100 is pasted on the new material reel. In one embodiment of the present utility model, the adhesive tape 8 is double-sided adhesive tape arranged at the beginning end of the new material roll. One side of the double-sided adhesive sticks to the material below the initial end of the new roll, and the other double-sided adhesive partially sticks to the material tape at the initial end to prevent the roll from falling apart, and the partially exposed adhesive tape is bonded to the material tape 100 . Specifically, in order to ensure that the initial end stuck by the double-sided tape can be released smoothly during unwinding without sticking to the material below, special double-sided tape can be used. Detachment; the other side is more viscous for bonding new and old materials.

After changing the roll, the first material reel 1 or the second material reel 2 that has received the old material roll needs to retreat or advance a station, so that the next preparatory material roll is at the unwinding station. Specifically, when the first material reel 1 and the second material reel 2 are correspondingly stored with multiple groups of material reels, when the old material reels on the unwinding reel are used up, and the new material reels on the stocking reel After bonding, the old material roll is cut off, and the broken material end is re-run together with the new material tape; at this time, the material preparation shaft becomes the discharge shaft, which is driven by the corresponding driving device to rotate and discharge; while the old material roll is loaded The unwinding shaft becomes the stocking shaft, and the preparatory roll that is ready to be replaced next time on the shaft that becomes the stocking shaft is transferred to the unwinding station and is opposite to the unwinding roll, so that it is convenient for the next time when changing rolls and receiving materials. The segment is opposite to the material segment to realize the bonding between the two.

In one embodiment, the old material roll to be unwound is the roll closest to the substrate; after the unwinding shaft completes the roll change and material connection, the displacement drive device 9 (please refer to Figure 6) drives the unwinding shaft back, The next preparatory roll adjacent to the old roll arrives at the unwinding station where the old roll was originally located.

In another embodiment, the unrolled old material roll is the one farthest from the substrate; after the unwinding shaft completes the roll change and material connection, the displacement drive device 9 (please refer to Figure 6) drives the unwinding shaft forward , so that the next preparatory roll adjacent to the old roll arrives at the unwinding station where the old roll was originally located.

In the above two implementations, the passing roller 6 , the roller backing assembly 5 and the cutting assembly 3 are always opposite to the unwinding station, and only process the rolls at the unwinding station.

Specifically, in one embodiment, the displacement driving device 9 includes a drive member and a guide member, the drive member is preferably a motor and a screw, and the guide member is preferably parallel to the first material reel shaft 1 and the second material reel shaft 2 axially arranged guide rails or guide rods, the first material reel 1 or the second material reel 2 is slidingly connected with the guide, and the driving member is connected and drives the first material reel 1 or the second material reel 2 to move along the guide.

The above embodiments are only used to illustrate the utility model rather than limit the technical solution described in the utility model. The understanding of this description should be based on those skilled in the art, such as "front", "rear", "left" , "right", "up", "down" and other directional descriptions, although this specification has described the utility model in detail with reference to the above-mentioned embodiments, those of ordinary skill in the art should understand that the technical field Those skilled in the art can still modify or equivalently replace the utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model should be covered within the scope of claims of the utility model.

Claims (10)

1. a kind of coil replacing mechanism, which is characterized in that including the first material spool, the second material spool, cut component, by roll assembly and Rotating device, first material spool and/or the second material spool to be arranged multiple material volumes, first material spool with it is described One in second material spool when being dispensing shaft, another is stock axis；When on the dispensing shaft in unreeling station and It is described to clamp material strip by roll assembly when the old material volume unreeled will be used up, it is described to cut material strip described in component severing, the rotation Device clamps the material strip overturning by roll assembly with by described, makes by the back side of the material strip of severing and the stock axis Material strip the back side on the same face, be connected together by the material strip on the material strip of severing and the stock axis and made the stock Axis becomes new dispensing shaft.

2. coil replacing mechanism as described in claim 1, it is characterised in that: by the back side of the material strip of severing and the stock axis On the back side of material strip be connected together on the same face and through adhesive tape.

3. coil replacing mechanism as described in claim 1, it is characterised in that: described to include the first roller rest, the second roller rest by roll assembly And to drive first roller rest and/or second roller rest it is close to each other or separate by roll driving apparatus；Work as institute When stating the old material volume on dispensing shaft will use up, first roller rest and second roller rest clamp the material that the dispensing shaft is released Band.

4. coil replacing mechanism as claimed in claim 3, it is characterised in that: the rotating device can drive first roller rest with One in second roller rest rotates around another.

5. coil replacing mechanism as claimed in claim 4, it is characterised in that: the rotating device includes rotary drive and along circle The guiding member rotating of week setting, first roller rest and/or second roller rest are slidably connected with corresponding guiding member rotating, institute Rotary drive is stated to connect and drive corresponding first roller rest and/or second roller rest along the circular motion.

6. coil replacing mechanism as claimed in claim 5, it is characterised in that: the radius of the circumference be first roller rest with it is described The sum of the radius of second roller rest, wherein the center of circle of the circumference is when first roller rest and second roller rest clamp the material When band, the center of circle of that corresponding roller rest of stock axis where new material volume.

7. coil replacing mechanism as described in claim 1, it is characterised in that: when by the back side of the material strip of severing and the stock The back side of material strip on axis when on the same face,

It is described relative motion occurs by roll assembly and the stock axis to keep the two close to each other, and make by the material strip of severing and Material strip on the stock axis is connected together；Or

The material strip of overturning is transferred mechanism dragging to be connected together with the material strip on the stock axis.

8. coil replacing mechanism as described in claim 1, it is characterised in that: the coil replacing mechanism further includes displacement driving device, institute Stating displacement driving device drives the dispensing shaft to advance or retreat, and is rolled onto next pre-feed up to where original old material volume Unreel station.

9. coil replacing mechanism as described in claim 1, it is characterised in that: first material spool and/or second material spool Including material volume axial brake device, installation axle, barrel, fixation kit and linkage unit, wherein the material spool driving device connects And the installation axle is driven to rotate；Several barrels corresponding to material volume, the material volume are arranged at intervals in the installation axle It is set on the corresponding barrel；The barrel is rotatably arranged in the installation axle；The fixation kit is to solid The relative position of the fixed material volume and the installation axle；The linkage unit is revolved to link corresponding material volume with installation axle jointly Turn.

10. coil replacing mechanism as claimed in claim 9, it is characterised in that: the barrel is rotatably arranged in institute by bearing It states in installation axle, the bearing includes inner-ring bearing and race bearing, and the relatively described installation axle transfer of the inner-ring bearing is described Race bearing is not rotated when the linkage unit is not acted on relative to the inner-ring bearing.