Splitting machine

Abstract

The utility model relates to a splitting machine which comprises a platform, a cutter module, a deviation rectifying sensor, a control system and a driving system, and the deviation rectifying sensor comprises a first sensor and a second sensor which are distributed in the width direction of a pole roll. The first sensor and the second sensor are respectively used for detecting the positions of two adjacent edges of the coating area in the width direction of the pole roll; the control system can calculate the center line position according to the position information of the two edges; the driving system can drive the cutter module to move in the width direction of the pole roll according to the center line position so that the cutter module can cut the pole roll along the center line position. The slitting center line position is calculated through the two adjacent edge positions of the coating area, the precision of the slitting position is improved, the influence of the width change of the pole roll on the width size of the slit sub-rolls is reduced, the influence on the slitting position judgment when wrinkles exist on the pole roll is also reduced, the width size difference of the slit sub-rolls is reduced, and the slitting quality is improved. And the slitting qualified rate of the slitting machine and the qualified rate of sub-rolls are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of lithium batteries, and particularly relates to a slitting machine. BACKGROUND

[0002] In the processing of lithium batteries, a local part of a pole piece is first coated with slurry to form an electrode, and the position of the pole piece without the slurry is used as a tab. After the coating is completed, a slitting machine is used to cut the pole roll, so that one pole roll is divided into at least two sub-rolls, and each sub-roll has a coated area and a tab area.

[0003] In the process of cutting the pole roll, the pole roll needs to be corrected to reduce the risk that the size deviation of the sub-rolls after cutting is large due to the deviation of the pole roll in the cutting process.

[0004] Generally, the slitting machine adopts a single-side correction method, that is, a correction sensor of the slitting machine detects the edge position of one side of the pole roll, and then the middle position of the pole roll is determined according to the width and the edge position of the pole roll. After the cutting knife is moved to the middle position, a one-to-two cutting action is performed on the pole roll at the middle position. Thereafter, the two sub-rolls after the slitting are again subjected to slitting according to the same correction method, so as to form four sub-rolls.

[0005] In the single-side correction method, the differences in the parameters such as the size of the incoming pole roll and the degree of folding have a great influence on the width size of the sub-rolls after the slitting, so that the size of the sub-rolls after the slitting fluctuates greatly, thereby resulting in a large difference in the width size of the sub-rolls after the slitting and a poor pass rate. CONTENT OF THE UTILITY MODEL

[0006] The application relates to a slitting machine which can reduce the difference in the width size of the sub-rolls after the slitting and improve the pass rate of the sub-rolls.

[0007] The application provides a slitting machine for slitting a pole roll, the pole roll comprising a coated area and a tab area, the tab area being located on both sides of the coated area along the width direction of the pole roll. The slitting machine comprises a platform, a cutting knife module, a correction sensor, a control system and a driving system. The platform is used for bearing a part of the pole roll. The cutting knife module is used for slitting the pole roll into at least two parts. The correction sensor comprises at least a first sensor and a second sensor which are distributed along the width direction of the pole roll. The first sensor and the second sensor are respectively used for detecting the positions of two edges of the coated area which are adjacent along the width direction of the pole roll. The control system is electrically connected or signal-connected with the correction sensor. The correction sensor can transmit position information to the control system. The control system can calculate a middle line position according to the received position information. The driving system is electrically connected or signal-connected with the control system. The driving system is drivingly connected with the cutting knife module. The driving system can drive the cutting knife module to move along the width direction of the pole roll according to the middle line position, so that the cutting knife module cuts the pole roll along the middle line position.

[0008] In the present application, the cutting position accuracy is improved by calculating the center line position of the cutting at two adjacent edge positions of the coating area, the width variation of the pole roll reduces the influence on the width size of the cut sub-roll, and the influence of the presence of wrinkles on the pole roll on the cutting position judgment is also reduced, thereby reducing the width size difference of the cut sub-roll, improving the cutting qualified rate of the cutting machine, and further improving the qualified rate of the sub-roll.

[0009] In a possible design, the coating area includes at least a first coating area and a second coating area spaced apart along the width direction of the pole roll, the edge of the first coating area near one side of the second coating area is a first edge, and the edge of the second coating area near one side of the first coating area is a second edge; the first sensor is configured to detect the position of the first edge, and the second sensor is configured to detect the position of the second edge; the cutter module includes at least a first cutter group, and the driving system includes at least a first driving module, the first driving module is drivingly connected with the first cutter group, and the first driving module is configured to move the first cutter group to a first center line position between the first edge and the second edge.

[0010] In a possible design, the edge of the first coating area away from the second coating area is a third edge, and the edge of the second coating area away from the first coating area is a fourth edge; the deviation correction sensor further includes a third sensor and a fourth sensor, the third sensor is configured to detect the position of the third edge, and the fourth sensor is configured to detect the position of the fourth edge; the cutter module further includes a second cutter group and a third cutter group, and the driving system further includes a second driving module and a third driving module, the second driving module is drivingly connected with the second cutter group, the second driving module is configured to move the second cutter group to a second center line position between the first edge and the third edge, the third driving module is drivingly connected with the third cutter group, and the third driving module is configured to move the third cutter group to a third center line position between the second edge and the fourth edge.

[0011] In a possible design, the first cutter group, the second cutter group and the third cutter group are distributed along the width direction of the pole roll, and the first cutter group, the second cutter group and the third cutter group can simultaneously cut the pole roll.

[0012] In a possible design, the cutter module includes an upper cutter group and a lower cutter group, and the upper cutter group and the lower cutter group are respectively located on both sides of the platform along the height direction of the cutting machine; the upper cutter group and the lower cutter group cooperate to cut the pole roll into at least two parts; the driving system includes at least a first driving member, the first driving member is drivingly connected with the upper cutter group and the lower cutter group respectively, and the first driving member can drive the upper cutter group and the lower cutter group to move synchronously in the width direction of the pole roll.

[0013] In a possible design, the driving system further includes a first support seat and a second support seat, the upper cutter group is mounted on the first support seat, the lower cutter group is mounted on the second support seat, and the first driving member is connected with the first support seat and the second support seat respectively.

[0014] In a possible design, the driving system further includes a first lead screw and a second lead screw, the first lead screw is threadedly connected with the first mounting base, and the second lead screw is threadedly connected with the second mounting base; the first driving member is drivingly connected with the first lead screw and the second lead screw respectively, the first driving member can drive the first lead screw to rotate about an axis of the first lead screw, so as to drive the first mounting base and the upper cutter set to move along the width direction of the pole winding, and the first driving member can also drive the second lead screw to rotate about an axis of the second lead screw, so as to drive the second mounting base and the lower cutter set to move along the width direction of the pole winding.

[0015] In a possible design, the driving system further includes a driving wheel, a first driven wheel and a second driven wheel, the first driven wheel and the second driven wheel are meshed with two sides of the driving wheel along the height direction of the slitting machine, the first driven wheel is drivingly connected with the first lead screw, and the second driven wheel is drivingly connected with the second lead screw; the first driving member is drivingly connected with the driving wheel, the first driving member can drive the driving wheel to rotate about an axis of the driving wheel, the driving wheel can drive the first driven wheel and the second driven wheel to synchronously rotate about axes of the first driven wheel and the second driven wheel, and the first driven wheel and the second driven wheel can drive the first lead screw and the second lead screw to synchronously rotate about axes of the first lead screw and the second lead screw, so as to drive the second mounting base and the lower cutter set to move along the width direction of the pole winding.

[0016] In a possible design, the slitting machine further includes a first base plate and a second base plate, the first supporting base is mounted on the first base plate, and the second supporting base is mounted on the second base plate; one of the first base plate and the first supporting base is provided with a first sliding block, and the other is provided with a first sliding rail, the first sliding block is matched with the first sliding rail, and the first sliding block can move along the first sliding rail when the first supporting base moves along the width direction of the pole winding; and / or, one of the second base plate and the second supporting base is provided with a second sliding block, and the other is provided with a second sliding rail, the second sliding block is matched with the second sliding rail, and the second sliding block can move along the second sliding rail when the second supporting base moves along the width direction of the pole winding.

[0017] In a possible design, the cutter module includes an upper cutter set and a lower cutter set, the upper cutter set and the lower cutter set are located on two sides of the platform along the height direction of the slitting machine, and the upper cutter set and the lower cutter set cooperate to cut the pole winding into at least two parts; the upper cutter set includes at least an upper cutter and a second driving member, the second driving member is drivingly connected with the upper cutter, and the second driving member can drive the upper cutter to rotate about an axis of the upper cutter to cut the pole winding; the lower cutter set includes at least a lower cutter and a third driving member, the third driving member is drivingly connected with the lower cutter, and the third driving member can drive the lower cutter to move along the width direction of the pole winding to cooperate with the upper cutter.

[0018] It should be understood that the general description above and the detailed description below are only examples and do not limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1A schematic diagram of the structural distribution of the slitting machine provided in this application in one embodiment;

[0020] Figure 2 This is a partial structural diagram of the polar roll in one embodiment;

[0021] Figure 3 This is a partial structural diagram of the polar roll in another embodiment;

[0022] Figure 4 This is a schematic diagram showing the placement of the correction sensor in one embodiment;

[0023] Figure 5 To and Figure 4 A schematic diagram of the corresponding cutting module in one embodiment;

[0024] Figure 6 This is a schematic diagram showing the placement of the correction sensor in another embodiment;

[0025] Figure 7 To and Figure 6 A schematic diagram of the corresponding cutting module in one embodiment;

[0026] Figure 8 This is a schematic diagram of the structural distribution of the slitting machine provided in this application in another embodiment.

[0027] Figure label:

[0028] 01-Unwinding shaft; 02-Tape splicing platform; 03-Tension detection mechanism; 04-Correction mechanism; 05-Dust removal mechanism; 06-First take-up shaft; 07-Second take-up shaft; 08-Electrode roll; 081-Coating area; 0811-First coating area; 0811A-First edge; 0811B-Third edge; 0811C-Second centerline position; 0812-Second coating area; 0812A-Second edge; 0812B-Fourth edge; 0812C-Third centerline position; 082-Electrode tab area; 0821-First electrode tab area; 0822-Second electrode tab area; 0823-Third electrode tab area; 0823A-First centerline position; 083-Edge position; 084-Centerline position;

[0029] 1-Cutter module; 11-First cutter group; 12-Second cutter group; 13-Third cutter group; 14-Upper cutter group; 141-Upper cutter; 142-Second drive unit; 15-Lower cutter group; 151-Lower cutter; 152-Third drive unit;

[0030] 2-Correction sensor; 21-First sensor; 22-Second sensor; 23-Third sensor; 24-Fourth sensor;

[0031] 3 - drive system; 31 - first drive module; 32 - second drive module; 33 - third drive module; 34 - first driving member; 35 - first support seat; 36 - second support seat; 37 - first screw rod; 38 - second screw rod; 39 - driving wheel; 3A - first driven wheel; 3B - second driven wheel;

[0032] 4 - fixing seat; 5 - first base plate; 6 - second base plate.

[0033] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the principles of the application. DETAILED DESCRIPTION

[0034] For a better understanding of the technical solutions of the present application, the embodiments of the present application are described in detail below with reference to the drawings.

[0035] It should be clear that the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0036] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0037] It should be understood that the term "and / or" used herein is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0038] It should be noted that the "up", "down", "left", "right" and other directional words described in the embodiments of the present application are described from the angle shown in the drawings, and should not be understood as a limitation on the embodiments of the present application. In addition, in the context, it should also be understood that when referring to an element connected to another element "on" or "under", it can be directly connected to another element "on" or "under", or indirectly connected to another element "on" or "under" through an intermediate element.

[0039] The embodiments of the present application provide a slitting machine, such as Figure 1As shown, the slitting machine includes a unwinding shaft 01, a tape connecting platform 02, a tension detection mechanism 03, a deviation correction mechanism 04, a dust removal mechanism 05, a first winding shaft 06 and a second winding shaft 07. The pole roll 08 is sleeved on the unwinding shaft 01, the other end of the pole roll 08 is corrected by the deviation correction mechanism 04, and then is cut into at least two parts by the cutter module 1, and the cut parts are dusted by the dust removal mechanism 05, and then are wound into sub-rolls at the first winding shaft 06 and the second winding shaft 07 respectively, so as to facilitate subsequent use.

[0040] The tape connecting platform 02 is used for bonding the tail end of one pole roll 08 with the head end of another pole roll 08, that is, the tape connecting platform 02 is used for splicing two pole rolls 08 to lengthen the length of the pole roll 08 and improve the working efficiency of the slitting machine.

[0041] The tension detection mechanism 03 is used for detecting and adjusting the tension of the pole roll 08 on the whole system, so that the pole roll 08 is kept in a tensioned state, and the problems such as wrinkles and distortion of the pole roll 08 are reduced.

[0042] The deviation correction mechanism 04 is used for adjusting the position of the pole roll 08 on the platform, so that the cutting position of the pole roll 08 is aligned with the cutter module 1, thereby improving the accuracy of the slitting machine in cutting the pole roll 08, and improving the dimensional accuracy of the cut sub-rolls.

[0043] The dust removal mechanism 05 is used for removing dust and other impurities on the surface of the pole roll 08, thereby reducing the risk of wrinkles in the subsequent winding process.

[0044] The first winding shaft 06 and the second winding shaft 07 are used for collecting the sub-rolls respectively, which can facilitate the later individual use of one or several sub-rolls.

[0045] When the slitting machine cuts one pole roll 08 into two sub-rolls, the structure of the pole roll 08 is as shown in the figure. Figure 2 The pole roll 08 includes a coated area 081 coated with slurry and a tab area 082 without slurry coating, the coated area 081 is used as a positive electrode or a negative electrode of a lithium battery, and the tab area 082 is used to form a tab after cutting. As shown in the figure, Figure 2 The number of coated areas 081 is one, two tab areas 082 are located on both sides of the coated area 081 along the width direction Y of the pole roll 08, and the cutter module 1 cuts along the center line position 084 of the coated area 081 when the slitting machine cuts the pole roll 08, so that the pole roll 08 is cut into two symmetrical sub-rolls.

[0046] When the slitting machine cuts one pole roll 08 into four sub-rolls, the structure of the pole roll 08 is as shown in the figure. Figure 3The coating area 081 includes a first coating area 0811 and a second coating area 0812, and the tab area 082 includes a first tab area 0821, a second tab area 0822, and a third tab area 0823. Along the width direction Y of the pole roll 08, the first tab area 0821 and the second tab area 0822 are located at the two side edges of the pole roll 08, and the third tab area 0823 is located between the first coating area 0811 and the second coating area 0812. At this time, the cutter module 1 is cut along the first center line position 0823A of the third tab area 0823, the second center line position 0811C of the first coating area 0811, and the third center line position 0812C of the second coating area 0812, respectively, so that the pole roll 08 is cut into four symmetrical sub-rolls.

[0047] As shown in Figure 4 The correction mechanism 04 includes a correction sensor 2 mounted on the fixed seat 4. The correction sensor 2 includes at least a first sensor 21 and a second sensor 22 distributed along the width direction Y of the pole roll 08, and the first sensor 21 and the second sensor 22 are respectively used to detect the positions of the two adjacent edges of the coating area 081 in the width direction Y of the pole roll 08. Specifically, the first sensor 21 detects the relative position of one edge of the coating area 081 to itself, and the second sensor 22 detects the relative position of the other edge of the coating area 081 to itself.

[0048] The cutting machine further includes a control system (not shown in the figure), which is electrically or signal connected with the correction sensor 2. The correction sensor 2 can transmit position information to the control system, and the control system can calculate the center line position 084 according to the received position information. Specifically, the control system can calculate the positions of the two edges according to the relative positions of the first sensor 21 and the second sensor 22, the relative position of the first sensor 21 to one edge of the coating area 081, and the relative position of the second sensor 22 to the other edge of the coating area 081, and finally calculate the center line position 084.

[0049] As shown in Figure 5 The cutting machine further includes a driving system 3 electrically or signal connected with the control system, and the driving system 3 is drivingly connected with the cutter module 1. The driving system 3 can drive the cutter module 1 to move along the width direction Y of the pole roll 08 according to the center line position 084, so that the cutter module 1 cuts the pole roll 08 along the center line position 084.

[0050] As shown in Figure 2As shown in the polar roll 08, the first sensor 21 and the second sensor 22 are respectively used to detect the relative positions of the two edges of the coating area 081, and are respectively recorded as the first relative position and the second relative position; the control system calculates the center line position 084 of the coating area 081 according to the first relative position and the second relative position, and the driving system 3 drives the cutter module 1 to move according to the calculation result of the control system, so that the cutter module 1 is aligned with the center line position 084 in the height direction Z of the slitting machine, so as to make the cutter module 1 slit the polar roll 08 along the center line position 084.

[0051] In this embodiment, the center line position 084 of the slitting is calculated by the relative positions of the two adjacent edges of the coating area 081, that is, the polar roll 08 is slitted by the center line correction method, which improves the accuracy of the slitting position, reduces the influence of the width change of the polar roll 08 on the width size of the sub-roll after slitting, and also reduces the influence of the existence of wrinkles on the polar roll 08 on the slitting position, thereby reducing the width size difference of the sub-roll after slitting, improving the slitting qualified rate of the slitting machine, and further improving the qualified rate of the sub-roll.

[0052] In Figure 3 As shown in the polar roll 08, in one embodiment, during the process of slitting the polar roll 08 by the slitting machine, the polar roll 08 can be first slit into two parts along the second center line position 0811C, then slit into three parts along the first center line position 0823A, and finally slit into four parts along the third center line position 0812C.

[0053] In another embodiment, as shown in Figure 3 The edge of the first coating area 0811 close to the second coating area 0812 is the first edge 0811A, and the edge of the second coating area 0812 close to the first coating area 0811 is the second edge 0812A; as shown in Figure 4 The first sensor 21 is used to detect the relative position of the first edge 0811A and the first sensor 21, and the second sensor 22 is used to detect the relative position of the second edge 0812A and the second sensor 22, and the control system calculates the first center line position 0823A according to the relative positions of the first sensor 21 and the second sensor 22, the relative position of the first sensor 21 and the first edge 0811A, and the relative position of the second sensor 22 and the second edge 0812A; as shown in Figure 5 The cutter module 1 at least includes the first cutter group 11, and the driving system 3 at least includes the first driving module 31, the first driving module 31 is drivingly connected with the first cutter group 11, and the first driving module 31 is used to move the first cutter group 11 to the first center line position 0823A between the first edge 0811A and the second edge 0812A.

[0054] In the embodiment, the pole coil 08 is first cut along the first center line position 0823A into two parts symmetrical along the width direction Y of the pole coil 08, and then the two parts are cut respectively, which reduces the risk of size error accumulation caused by cutting from left to right along the width direction Y of the pole coil 08, thereby reducing the risk of large width difference of the cut sub-coil, further reducing the width size difference of the cut sub-coil, improving the cutting qualified rate of the cutting machine, and further improving the qualified rate of the sub-coil.

[0055] In an embodiment, after the pole coil 08 is cut into two symmetrical sub-coils, the cutting of the two sub-coils can use the existing single-side correction method to adjust the position of the cutter module 1, that is, the edge of the sub-coil is detected by the correction sensor 2, the center line of the sub-coil is calculated by the control system according to the edge of the sub-coil and the width of the sub-coil, and finally the cutting of the sub-coil is performed by driving the cutter module 1 to move to the center line by the control system.

[0056] In an embodiment, after the pole coil 08 is cut into two symmetrical sub-coils by the center line correction method, the cutting of the two sub-coils still uses the center line correction method. Specifically, as shown in Figure 3 the edge of the side of the first coating area 0811 away from the second coating area 0812 is a third edge 0811B, and the edge of the side of the second coating area 0812 away from the first coating area 0811 is a fourth edge 0812B; as shown in Figure 6 the correction sensor 2 further includes a third sensor 23 and a fourth sensor 24, the third sensor 23 is used to detect the relative position between the third edge 0811B and the third sensor 23, and the fourth sensor 24 is used to detect the relative position between the fourth edge 0812B and the fourth sensor 24; as shown in Figure 7 the cutter module 1 further includes a second cutter group 12 and a third cutter group 13, and the driving system 3 further includes a second driving module 32 and a third driving module 33, the second driving module 32 is drivingly connected with the second cutter group 12, and the second driving module 32 is used to move the second cutter group 12 to a second center line position 0811C between the first edge 0811A and the third edge 0811B, the third driving module 33 is drivingly connected with the third cutter group 13, and the third driving module 33 is used to move the third cutter group 13 to a third center line position 0812C between the second edge 0812A and the fourth edge 0812B.

[0057] In the embodiment, after the pole coil 08 is cut into two symmetrical sub-coils by the center line correction method, the cutting of the two sub-coils still uses the center line correction method, which further reduces the risk of large width difference of the cut sub-coil, further reduces the width size difference of the cut sub-coil, and further improves the cutting qualified rate of the cutting machine, the qualified rate of the sub-coil.

[0058] In the embodiment, after the pole coil 08 is cut into two symmetrical sub-coils by the center line correction method, the cutting of the two sub-coils still uses the center line correction method, which further reduces the risk of large width difference of the cut sub-coil, further reduces the width size difference of the cut sub-coil, and further improves the cutting qualified rate of the cutting machine, the qualified rate of the sub-coil. Figure 6As shown, the first sensor 21 and the second sensor 22 are installed on the same mounting seat 4, and the third sensor 23 and the fourth sensor 24 are respectively installed on two mounting seats 4, so as to reduce the number of mounting seats 4 and reduce the cost of the slitting machine.

[0059] In an embodiment, as shown in Figure 8 The first knife group 11, the second knife group 12 and the third knife group 13 are staggered along the length direction X of the pole winding 08, that is, the pole winding 08 is first cut by the first knife group 11 along the first center line position 0823A for the first time, and then the pole winding 08 is cut by the second knife group 12 and the third knife group 13 for the second and third times.

[0060] In another embodiment, as shown in Figure 7 The first knife group 11, the second knife group 12 and the third knife group 13 are distributed along the width direction Y of the pole winding 08, and the first knife group 11, the second knife group 12 and the third knife group 13 can cut the pole winding 08 at the same time.

[0061] In this embodiment, the first knife group 11, the second knife group 12 and the third knife group 13 cut the pole winding 08 at the same time, which can improve the cutting efficiency of the slitting machine on the pole winding 08, and is beneficial to reduce the size of the slitting machine in the length direction X of the pole winding 08, so as to facilitate the transportation, storage and use of the slitting machine.

[0062] When the first knife group 11, the second knife group 12, the third knife group 13, the first driving module 31, the second driving module 32 and the third driving module 33 exist at the same time, the first knife group 11, the second knife group 12 and the third knife group 13 have the same structure, and the first driving module 31, the second driving module 32 and the third driving module 33 have the same structure, so as to reduce the installation, maintenance and replacement cost of the slitting machine, and is beneficial to reduce the installation difficulty of the slitting machine.

[0063] In order to facilitate the description of the structure of the cutting knife module 1 and the driving system 3, the following will take the first knife group 11 and the first driving module 31 as an example.

[0064] As shown in Figure 5 The cutting knife module 1 includes an upper knife group 14 and a lower knife group 15, and the upper knife group 14 and the lower knife group 15 are respectively located on both sides of the platform along the height direction Z of the slitting machine. The upper knife group 14 cooperates with the lower knife group 15 to cut the pole winding 08 into at least two parts; the driving system 3 at least includes a first driving member 34, and the first driving member 34 is drivingly connected with the upper knife group 14 and the lower knife group 15 respectively. The first driving member 34 can drive the upper knife group 14 and the lower knife group 15 to move synchronously in the width direction Y of the pole winding 08.

[0065] In the embodiment, after the deviation correction sensor 2 detects the relative positions of the first edge 0811A and the second edge 0812A, the control system calculates the first center line position 0823A, and the first driving member 34 drives the upper cutter set 14 and the lower cutter set 15 to move synchronously to the first center line position 0823A, which reduces the risk of deviation of the moving distance of the upper cutter set 14 and the lower cutter set 15, thereby reducing the risk of failure of cooperation between the upper cutter set 14 and the lower cutter set 15 after moving, and thus the risk of failure of the extreme roll 08 to be cut. Therefore, the first driving member 34 drives the upper cutter set 14 and the lower cutter set 15 to move synchronously, which improves the accuracy of cooperation between the upper cutter set 14 and the lower cutter set 15, and thus improves the working stability and reliability of the cutting knife module 1 and the cutting machine.

[0066] In an embodiment, the first driving member 34 is directly connected with the upper cutter set 14 and the lower cutter set 15, so as to simplify the structure of the cutting machine.

[0067] In another embodiment, as shown in Figure 5 , the driving system 3 further comprises a first support seat 35 and a second support seat 36, the upper cutter set 14 is installed on the first support seat 35, the lower cutter set 15 is installed on the second support seat 36, and the first driving member 34 is connected with the first support seat 35 and the second support seat 36 respectively.

[0068] In the embodiment, the first driving member 34 is indirectly connected with the upper cutter set 14 through the first support seat 35 and indirectly connected with the lower cutter set 15 through the second support seat 36, which reduces the connection difficulty of the first driving member 34 with the upper cutter set 14 and the lower cutter set 15, thereby facilitating the simplification of the structure of the first driving member 34, the upper cutter set 14 and the lower cutter set 15, so as to reduce the cost of the cutting machine.

[0069] In an embodiment, the first driving member 34 is directly connected with the first support seat 35 and the second support seat 36.

[0070] In another embodiment, as shown in Figure 5 , the driving system 3 further comprises a first lead screw 37 and a second lead screw 38, the first lead screw 37 is threadedly connected with the first mounting seat, the second lead screw 38 is threadedly connected with the second mounting seat, the first driving member 34 is drivingly connected with the first lead screw 37 and the second lead screw 38 respectively, the first driving member 34 can drive the first lead screw 37 to rotate around its own axis to drive the first mounting seat and the upper cutter set 14 to move along the width direction Y of the extreme roll 08, and the first driving member 34 can also drive the second lead screw 38 to rotate around its own axis to drive the second mounting seat and the lower cutter set 15 to move along the width direction Y of the extreme roll 08.

[0071] In this embodiment, the first driving member 34 is indirectly connected to the first support base 35 via the first lead screw 37 and indirectly connected to the second support base 36 via the second lead screw 38. The movement of the first support base 35 and the second support base 36 is achieved by driving the rotation of the first lead screw 37 and the second lead screw 38. That is, the first lead screw 37 and the first support base 35, and the second lead screw 38 and the second support base 36, all form a lead screw-nut mating structure. By controlling the number of rotations of the first lead screw 37 and the second lead screw 38 through the first driving member 34, the movement distance of the first support base 35 and the second support base 36 in the width direction Y of the pole roll 08 can be precisely controlled, thereby improving the control accuracy of the movement distance of the cutting module 1, thereby improving the accuracy of the cutting position, and further reducing the width difference of the sub-rolls after cutting.

[0072] In one embodiment, there are multiple first driving members 34. One first driving member 34 is driven to the first lead screw 37, and another first driving member 34 is driven to the second lead screw 38. By driving the first lead screw 37 and the second lead screw 38 to rotate synchronously through different first driving members 34, the upper tool group 14 and the lower tool group 15 are driven to move synchronously.

[0073] In another embodiment, such as Figure 5 As shown, the drive system 3 also includes a drive wheel 39, a first driven wheel 3A, and a second driven wheel 3B. Along the height direction Z of the slitting machine, the first driven wheel 3A and the second driven wheel 3B are respectively engaged on both sides of the drive wheel 39. The first driven wheel 3A is driven and connected to the first lead screw 37, and the second driven wheel 3B is driven and connected to the second lead screw 38. The first drive member 34 is driven and connected to the drive wheel 39. The first drive member 34 can drive the drive wheel 39 to rotate around its own axis. The drive wheel 39 can drive the first driven wheel 3A and the second driven wheel 3B to rotate synchronously around their own axis. The first driven wheel 3A and the second driven wheel 3B can drive the first lead screw 37 and the second lead screw 38 to rotate synchronously around their own axis, so as to drive the second mounting base and the lower blade assembly 15 to move along the width direction Y of the pole roll 08.

[0074] In this embodiment, there is only one first driving member 34. The first driving member 34 controls the rotation of the first lead screw 37 and the second lead screw 38 simultaneously through the meshing of the driving wheel 39, the first driven wheel 3A and the second driven wheel 3B. This reduces the number of first driving members 34 required, thereby reducing the cost of the drive system 3 and the slitting machine. At the same time, it reduces the difference in the rotation speed and number of rotations of the first lead screw 37 and the second lead screw 38, that is, it reduces the difference in the moving distance of the upper blade group 14 and the lower blade group 15 in the width direction Y of the pole roll 08, so as to improve the synchronization of the movement of the upper blade group 14 and the lower blade group 15, thereby improving the coordination accuracy of the upper blade group 14 and the lower blade group 15, and improving the working stability and reliability of the cutting module 1 and the slitting machine.

[0075] As shown in Figure 5 , the slitting machine further comprises a first base plate 5 and a second base plate 6, the first support base 35 is installed on the first base plate 5, and the second support base 36 is installed on the second base plate 6; one of the first base plate 5 and the first support base 35 is provided with a first sliding block (not shown in the figure), and the other is provided with a first sliding rail (not shown in the figure), the first sliding block and the first sliding rail are matched, and when the first support base 35 moves along the width direction (Y) of the pole roll 08, the first sliding block can move along the first sliding rail; and / or, one of the second base plate 6 and the second support base 36 is provided with a second sliding block (not shown in the figure), and the other is provided with a second sliding rail (not shown in the figure), the second sliding block and the second sliding rail are matched, and when the second support base 36 moves along the width direction (Y) of the pole roll 08, the second sliding block can move along the second sliding rail.

[0076] In this embodiment, during the movement of the first support base 35 and the second support base 36 driven by the first driving member 34, the first sliding block can move along the first sliding rail, and the second sliding block can move along the second sliding rail, and the first sliding rail and the second sliding rail can limit the moving direction of the first support base 35 and the second support base 36, thereby improving the accuracy of the moving direction of the upper knife set 14 and the lower knife set 15.

[0077] Based on any one of the above embodiments, as shown in Figure 5 , the upper knife set 14 at least comprises an upper knife 141, and in an embodiment, the upper knife 141 is in the form of a blade, and the slitting of the pole roll 08 is realized by the movement of the pole roll 08 along the length direction X of the pole roll 08.

[0078] In another embodiment, as shown in Figure 5 , the upper knife set 14 further comprises a second driving member 142, the second driving member 142 is drivingly connected with the upper knife 141, and the second driving member 142 can drive the upper knife 141 to rotate around the axis line thereof to slit the pole roll 08.

[0079] In this embodiment, the slitting of the pole roll 08 is realized by the rotation of the upper knife 141 driven by the second driving member 142, which improves the slitting efficiency of the upper knife 141 on the pole roll 08, and at the same time, reduces the risk of burrs on the slitted edge, which is beneficial to improve the slitting quality of the slitting machine.

[0080] As shown in Figure 5 , the lower knife set 15 at least comprises a lower knife 151 and a third driving member 152, the third driving member 152 is drivingly connected with the lower knife 151, and the third driving member 152 can drive the lower knife 151 to move along the width direction Y of the pole roll 08 to cooperate with the upper knife 141.

[0081] In the embodiment, when the wear of the upper knife 141 causes the matching gap between the upper knife 141 and the lower knife 151 to become larger, the third driving member 152 can fine-tune the position of the lower knife 151 in the width direction Y of the pole winding 08, and reduce the matching gap between the upper knife 141 and the lower knife 151, thereby improving the slitting quality of the slitting cutter module 1 on the pole winding 08.

[0082] In summary, the correction and slitting process of the slitting machine in an embodiment of the present application is as follows:

[0083] As shown in Figure 6 , the first sensor 21 detects the relative position of the first edge 0811A and the first sensor 21 and records it as the first relative position, the second sensor 22 detects the relative position of the second edge 0812A and the second sensor 22 and records it as the second relative position, the third sensor 23 detects the relative position of the third edge 0811B and the third sensor 23 and records it as the third relative position, and the fourth sensor 24 detects the relative position of the fourth edge 0812B and the fourth sensor 24 and records it as the fourth relative position;

[0084] The control system calculates the first center line position 0823A according to the relative positions of the first sensor 21 and the second sensor 22, the first relative position and the second relative position; the control system calculates the second center line position 0811C according to the relative positions of the first sensor 21 and the third sensor 23, the first relative position and the third relative position; and the control system calculates the third center line position 0812C according to the relative positions of the second sensor 22 and the fourth sensor 24, the second relative position and the fourth relative position;

[0085] As shown in Figure 7 , the first driving module 31 drives the first knife group 11 to move along the width direction Y of the pole winding 08, so that the first knife group 11 is aligned with the first center line position 0823A in the height direction Z of the slitting machine; the second driving module 32 drives the second knife group 12 to move along the width direction Y of the pole winding 08, so that the second knife group 12 is aligned with the second center line position 0811C in the height direction Z of the slitting machine; and the third driving module 33 drives the third knife group 13 to move along the width direction Y of the pole winding 08, so that the third knife group 13 is aligned with the third center line position 0812C in the height direction Z of the slitting machine;

[0086] The first knife group 11, the second knife group 12 and the third knife group 13 simultaneously slit the pole winding 08, so that the pole winding 08 is slitted into four sub-windings.

[0087] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A slitting machine for slitting a jelly-roll (08) including a coated region (081) and tab regions (082) located on both sides of the coated region (081) in a width direction (Y) of the jelly-roll (08), characterized in that, The slitting machine comprises: a platform for carrying a part of the pole roll (08); a cutter module (1) for slitting the pole roll (08) into at least two parts; a deviation correction sensor (2) comprising at least a first sensor (21) and a second sensor (22) distributed along the width direction (Y) of the pole roll (08), the first sensor (21) and the second sensor (22) are respectively used to detect the positions of two edges adjacent to the coating area (081) in the width direction (Y) of the pole roll (08); a control system electrically or signal connected with the deviation correction sensor (2), the deviation correction sensor (2) can transmit position information to the control system, and the control system can calculate the center line position (084) according to the received position information; a driving system (3) electrically or signal connected with the control system, the driving system (3) is drivingly connected with the cutter module (1), and the driving system (3) can drive the cutter module (1) to move along the width direction (Y) of the pole roll (08) according to the center line position (084), so that the cutter module (1) cuts the pole roll (08) along the center line position (084).

2. The slitter according to claim 1, characterized in that, The coating area (081) comprises at least a first coating area (0811) and a second coating area (0812) spaced apart along the width direction (Y) of the pole roll (08), the edge of the first coating area (0811) close to one side of the second coating area (0812) is a first edge (0811A), and the edge of the second coating area (0812) close to one side of the first coating area (0811) is a second edge (0812A); The first sensor (21) is used to detect the position of the first edge (0811A), and the second sensor (22) is used to detect the position of the second edge (0812A); The cutter module (1) comprises at least a first cutter group (11), and the driving system (3) comprises at least a first driving module (31), the first driving module (31) is drivingly connected with the first cutter group (11), and the first driving module (31) is used to move the first cutter group (11) to a first center line position (0823A) between the first edge (0811A) and the second edge (0812A).

3. The slitter according to claim 2, characterized in that, The edge of the first coating area (0811) away from one side of the second coating area (0812) is a third edge (0811B), and the edge of the second coating area (0812) away from one side of the first coating area (0811) is a fourth edge (0812B); The deviation correction sensor (2) further comprises a third sensor (23) and a fourth sensor (24), the third sensor (23) is used to detect the position of the third edge (0811B), and the fourth sensor (24) is used to detect the position of the fourth edge (0812B); The cutting knife module (1) further comprises a second knife group (12) and a third knife group (13), and the driving system (3) further comprises a second driving module (32) and a third driving module (33), the second driving module (32) is in driving connection with the second knife group (12), and the second driving module (32) is used for moving the second knife group (12) to a second middle line position (0811C) between the first edge (0811A) and the third edge (0811B), the third driving module (33) is in driving connection with the third knife group (13), and the third driving module (33) is used for moving the third knife group (13) to a third middle line position (0812C) between the second edge (0812A) and the fourth edge (0812B).

4. The slitter according to claim 3, characterized in that, The first knife group (11), the second knife group (12) and the third knife group (13) are distributed along the width direction (Y) of the pole winding (08), and the first knife group (11), the second knife group (12) and the third knife group (13) can simultaneously slit the pole winding (08).

5. The slitter according to any one of claims 1 to 4, characterized in that, The cutting knife module (1) comprises an upper knife group (14) and a lower knife group (15), and the upper knife group (14) and the lower knife group (15) are respectively located on both sides of the platform along the height direction (Z) of the slitting machine, and the upper knife group (14) cooperates with the lower knife group (15) to slit the pole winding (08) into at least two parts. The driving system (3) at least comprises a first driving member (34), the first driving member (34) is in driving connection with the upper knife group (14) and the lower knife group (15) respectively, and the first driving member (34) can drive the upper knife group (14) and the lower knife group (15) to move synchronously in the width direction (Y) of the pole winding (08).

6. The slitter according to claim 5, characterized in that, The driving system (3) further comprises a first support seat (35) and a second support seat (36), the upper knife group (14) is installed on the first support seat (35), the lower knife group (15) is installed on the second support seat (36), and the first driving member (34) is connected with the first support seat (35) and the second support seat (36) respectively.

7. The slitter according to claim 6, characterized in that The driving system (3) further comprises a first lead screw (37) and a second lead screw (38), the first lead screw (37) is in threaded connection with a first mounting seat, the second lead screw (38) is in threaded connection with a second mounting seat, the first driving member (34) is in driving connection with the first lead screw (37) and the second lead screw (38) respectively, the first driving member (34) can drive the first lead screw (37) to rotate around its own axis, so as to drive the first mounting seat and the upper knife group (14) to move along the width direction (Y) of the pole winding (08), and the first driving member (34) can also drive the second lead screw (38) to rotate around its own axis, so as to drive the second mounting seat and the lower knife group (15) to move along the width direction (Y) of the pole winding (08).

8. The slitter according to claim 7, characterized in that, The driving system (3) further comprises a driving wheel (39), a first driven wheel (3A) and a second driven wheel (3B), along the height direction (Z) of the slitting machine, the first driven wheel (3A) and the second driven wheel (3B) are respectively engaged on both sides of the driving wheel (39), the first driven wheel (3A) is drivingly connected with the first lead screw (37), and the second driven wheel (3B) is drivingly connected with the second lead screw (38); The first driving member (34) is drivingly connected with the driving wheel (39), the first driving member (34) can drive the driving wheel (39) to rotate around its own axis, the driving wheel (39) can drive the first driven wheel (3A) and the second driven wheel (3B) to synchronously rotate around their own axes, and the first driven wheel (3A) and the second driven wheel (3B) can drive the first lead screw (37) and the second lead screw (38) to synchronously rotate around their own axes, so as to drive the second mounting seat and the lower knife group (15) to move along the width direction (Y) of the polar roll (08).

9. The slitter according to claim 6, characterized in that, The slitting machine further comprises a first base plate (5) and a second base plate (6), the first support seat (35) is mounted on the first base plate (5), and the second support seat (36) is mounted on the second base plate (6); One of the first base plate (5) and the first support seat (35) is provided with a first sliding block, and the other is provided with a first sliding rail, the first sliding block is matched with the first sliding rail, and when the first support seat (35) moves along the width direction (Y) of the polar roll (08), the first sliding block can move along the first sliding rail; And / or, one of the second base plate (6) and the second support seat (36) is provided with a second sliding block, and the other is provided with a second sliding rail, the second sliding block is matched with the second sliding rail, and when the second support seat (36) moves along the width direction (Y) of the polar roll (08), the second sliding block can move along the second sliding rail.

10. The slitter according to any one of claims 1 to 4, characterized in that, The cutter module (1) comprises an upper knife group (14) and a lower knife group (15), along the height direction (Z) of the slitting machine, the upper knife group (14) and the lower knife group (15) are respectively located on both sides of the platform, and the upper knife group (14) cooperates with the lower knife group (15) to slit the polar roll (08) into at least two parts; The upper knife group (14) at least comprises an upper knife (141) and a second driving member (142), the second driving member (142) is drivingly connected with the upper knife (141), and the second driving member (142) can drive the upper knife (141) to rotate around its own axis to slit the polar roll (08); The lower knife group (15) at least comprises a lower knife (151) and a third driving member (152), the third driving member (152) is drivingly connected with the lower knife (151), and the third driving member (152) can drive the lower knife (151) to move along the width direction (Y) of the polar roll (08) to cooperate with the upper knife (141).

Images