Automatic belt splicing and belt pressing device

Abstract

The present application discloses an automatic belt splicing and pressing device, comprising: a turning frame; a first telescopic shaft, a second telescopic shaft, a first fixed roller and a second fixed roller are arranged on the turning frame; the first telescopic shaft and the second telescopic shaft are arranged symmetrically along the rotating shaft of the turning frame; the first fixed roller and the second fixed roller are arranged symmetrically along the rotating shaft of the turning frame; the turning frame is also provided with a first belt splicing roller, a first cylinder, a first connecting rod, a second belt splicing roller, a second cylinder and a second connecting rod; one end of the first connecting rod is connected to the first belt splicing roller, and the other end is hinged to the piston rod of the first cylinder; one end of the second connecting rod is connected to the second belt splicing roller, and the other end is hinged to the piston rod of the second cylinder. The present invention has a simple structure, is easy to operate, has a high success rate of belt splicing, and has the function of preventing the winding and pressing belt from loosening.

Description

Technical Field

[0001] The present application relates to the technical field of lithium battery pole piece or thin film production equipment, and in particular to an automatic tape splicing and tape pressing device. Background Art

[0002] In the lithium battery coating machine or film production industry, in order to achieve successful splicing, it is necessary to accurately control the contact point between the electrode or film and the tape and the action time of the cutter.

[0003] At present, the industry mainly adopts the swing arm cutter to splice the tape. Its disadvantage is that when unwinding and splicing, due to the different diameters of the incoming material pole pieces or films, the movement trajectory of the swing arm cutter is an arc line, that is, the splicing point is an arc line. The original swing arm cutter position has only a small arc section at the best splicing position when designing the swing arm rotation point. There is also an arc section at both ends of this small arc section for splicing. The farther away from the best splicing position, the easier it is to fail to splice. That is, the larger the range of incoming material roll diameters, the easier it is to fail. The whole set of swing arm cutter mechanism is more expensive. In addition, when the winding roll diameter is large, due to the change in the taper of the winding substrate tension, the external pole piece or film is easy to loosen during splicing, and the splicing action needs to be completed in the process of manual light pressure. For this reason, the present invention proposes an automatic splicing and pressing device. Summary of the invention

[0004] The embodiment of the present application provides an automatic tape splicing and tape pressing device, which has a simple structure, is easy to operate, has a high tape splicing success rate, and has a function of winding and pressing the tape to prevent loosening.

[0005] In view of this, the present application provides an automatic tape splicing and tape pressing device, comprising: a turning frame;

[0006] The turning frame is provided with a first telescopic shaft, a second telescopic shaft, a first fixed roller and a second fixed roller;

[0007] The first telescopic shaft and the second telescopic shaft are arranged symmetrically along the rotation axis of the flip frame;

[0008] The first fixed roller and the second fixed roller are symmetrically arranged along the rotating shaft of the turning frame;

[0009] The turning frame is also provided with a first belt-joining roller, a first cylinder, a first connecting rod, a second belt-joining roller, a second cylinder and a second connecting rod;

[0010] One end of the first connecting rod is connected to the first belt connecting roller, and the other end is hinged to the piston rod of the first cylinder;

[0011] One end of the second connecting rod is connected to the second belt connecting roller, and the other end is hinged to the piston rod of the second cylinder.

[0012] Optionally, the turning frame is provided with a first support rod and a second support rod;

[0013] The first support rod and the second support rod are symmetrically arranged along the rotation axis of the flip frame;

[0014] The first fixed roller and the second fixed roller are fixed to the top of the first support rod and the bottom of the second support rod respectively.

[0015] Optionally, the first cylinder is fixed to the second support rod via a first mounting seat;

[0016] The second cylinder is fixed on the first support rod through a second mounting seat.

[0017] Optionally, a roll diameter measuring sensor is provided on a side of the first support rod facing the first telescopic axis and on a side of the second support rod facing the second telescopic axis.

[0018] Optionally, it also includes: a controller;

[0019] The roll diameter measuring sensor is electrically connected to the controller;

[0020] The controller is electrically connected to the first cylinder and the second cylinder respectively.

[0021] Optionally, it also includes: a fixed frame;

[0022] The fixed frame is provided with a third fixed roller, a tape joint rubber roller and a tape joint cutter in sequence from top to bottom.

[0023] Optionally, the fixed frame is provided with a sliding seat which can slide back and forth on the fixed frame in a horizontal direction;

[0024] The splicing rubber roller and the splicing cutter are both located on the sliding seat, and the sliding seat is provided with a third cylinder for driving the splicing rubber roller to move forward and backward and a driving device for driving the splicing cutter to rotate;

[0025] The third cylinder is drivingly connected to the tape splicing rubber roller, and the driving device is drivingly connected to the tape splicing cutter.

[0026] Optionally, a slide rail is provided on the fixed frame in a horizontal direction;

[0027] The sliding seat is slidably connected to the fixed frame via the sliding rail.

[0028] Optionally, the sliding seat is also provided with a beam sensor for detecting the position of the substrate;

[0029] The through-beam sensor is electrically connected to the third cylinder and the driving device respectively.

[0030] Optionally, the third fixed roller is fixed on the sliding seat.

[0031] It can be seen from the above technical scheme that the embodiment of the present application has the following advantages: the automatic tape splicing and pressing device uses the first cylinder and the second cylinder to control the positions of the first tape splicing roller and the second tape splicing roller respectively, so that the first tape splicing roller and the second tape splicing roller become movable rollers with variable positions, thereby making it easy to control the direction of the substrate when splicing, ensuring that the splicing point is always in the center horizontal position when the roll diameter is different, and the success rate of splicing is higher. When winding, the second tape splicing roller can be used as a pressure roller, and the second cylinder drives the second tape splicing roller to automatically press down without manual intervention, so as to realize the function of winding and pressing to prevent loosening. The automatic tape splicing and pressing device can adapt to pole pieces or films with different roll diameters, and keep the contact points of pole pieces or films with different roll diameters consistent with the tape, which is easy to control and has a high success rate of splicing. At the same time, its overall structure is simple, the winding and unwinding structure is universal, and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of the automatic tape splicing and tape pressing device during unwinding in the embodiment of the present application;

[0033] Figure 2 This is a schematic diagram of the structure of the automatic tape splicing and tape pressing device during winding in the embodiment of the present application;

[0034] Wherein, the accompanying drawings are marked as follows:

[0035] 1-second telescopic axis, 2-first telescopic axis, 3-substrate, 4-second fixed roller, 5-first tape connecting roller, 6-first cylinder, 7-tape connecting cutter, 8-tape connecting rubber roller, 9-third fixed roller, 10-first fixed roller, 11-second tape connecting roller, 12-second cylinder, 13-reel diameter measuring sensor, 14-counter-radiation sensor, 15-first support rod, 16-second support rod. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] The present application provides an embodiment of an automatic tape splicing and tape pressing device. Figure 1 and Figure 2 .

[0040] The automatic belt splicing and pressing device in this embodiment includes: a turning frame, on which a first telescopic shaft 2, a second telescopic shaft 1, a first fixed roller 10 and a second fixed roller 4 are arranged, the first telescopic shaft 2 and the second telescopic shaft 1 are symmetrically arranged along the rotating axis of the turning frame, the first fixed roller 10 and the second fixed roller 4 are symmetrically arranged along the rotating axis of the turning frame, and the first splicing roller 5, the first cylinder 6, the first connecting rod, the second splicing roller 11, the second cylinder 12 and the second connecting rod are also arranged on the turning frame, one end of the first connecting rod is connected to the first splicing roller 5, and the other end is hinged to the piston rod of the first cylinder 6, one end of the second connecting rod is connected to the second splicing roller 11, and the other end is hinged to the piston rod of the second cylinder 12.

[0041] It should be noted that: the automatic tape splicing and pressing device uses the first cylinder 6 and the second cylinder 12 to control the positions of the first tape splicing roller 5 and the second tape splicing roller 11 respectively, so that the first tape splicing roller 5 and the second tape splicing roller 11 become movable rollers with variable positions, thereby making it easy to control the direction of the substrate 3 when splicing, ensuring that the splicing point is always in the central horizontal position when the roll diameter is different, and the success rate of splicing is higher. In addition, when winding (when the roll diameter is large and cannot be tightened), the second tape splicing roller 11 can be used as a pressure roller, and the second cylinder 12 drives the second tape splicing roller 11 to automatically press down to assist winding and tightening, without manual intervention, and realize the function of winding and pressing to prevent loosening. The automatic tape splicing and pressing device can adapt to pole pieces or films with different roll diameters, and keep the contact points of pole pieces or films with different roll diameters consistent with the tape, which is easy to control and has a high success rate of splicing. At the same time, its overall structure is simple, the winding and unwinding structure is universal, and the cost is low.

[0042] The above is an embodiment of the present invention provided by the embodiment of an automatic tape splicing and pressing device. The following is an embodiment of the present invention provided by the embodiment of an automatic tape splicing and pressing device. For details, please refer to Figure 1 and Figure 2 .

[0043] The automatic belt splicing and belt pressing device in this embodiment includes: a flip frame, which can flip 360° with its rotating shaft as the center point to realize the flipping and winding function; the flip frame is provided with a first telescopic shaft 2, a second telescopic shaft 1, a first fixed roller 10 and a second fixed roller 4, the first telescopic shaft 2 and the second telescopic shaft 1 are symmetrically arranged along the rotating shaft of the flip frame, and the first fixed roller 10 and the second fixed roller 4 are symmetrically arranged along the rotating shaft of the flip frame, and the flip frame is also provided with a first splicing roller 5, a first cylinder 6, a first connecting rod, a second splicing roller 11, a second cylinder 12 and a second connecting rod, one end of the first connecting rod is connected to the first splicing roller 5, and the other end is hinged to the piston rod of the first cylinder 6, one end of the second connecting rod is connected to the second splicing roller 11, and the other end is hinged to the piston rod of the second cylinder 12.

[0044] Specifically, the flip frame is provided with a first support rod 15 and a second support rod 16, which are symmetrically arranged up and down along the rotating axis of the flip frame, and the first fixed roller 10 and the second fixed roller 4 are fixed on the top of the first support rod 15 and the bottom of the second support rod 16 respectively.

[0045] The first cylinder 6 is fixed to the second support rod 16 via a first mounting seat, and the second cylinder 12 is fixed to the first support rod 15 via a second mounting seat.

[0046] A roll diameter measuring sensor 13 is provided on a side of the first support rod 15 facing the first telescopic shaft 2 and a side of the second support rod 16 facing the second telescopic shaft 1 .

[0047] It also includes: a controller, a roll diameter sensor 13 electrically connected to the controller, and the controller is electrically connected to the first cylinder 6 and the second cylinder 12 respectively. When the roll diameter sensor 13 detects that the substrate 3 on the second telescopic shaft 1 reaches a set value, a feedback signal is sent to the controller, and the controller controls the movement of the first cylinder 6 or the second cylinder 12 to adjust the positions of the first splicing roller 5 and the second splicing roller 11 to achieve automatic splicing action during unwinding or rewinding.

[0048] The utility model also comprises: a fixed frame, on which a third fixed roller 9, a tape splicing rubber roller 8 and a tape splicing cutter 7 are arranged in sequence from top to bottom.

[0049] The fixed frame is provided with a sliding seat that can slide forward and backward on the fixed frame in the horizontal direction; the splicing rubber roller 8 and the splicing cutter 7 are both located on the sliding seat, and the sliding seat is provided with a third cylinder for driving the splicing rubber roller 8 to move forward and backward and a driving device for driving the splicing cutter 7 to rotate; the third cylinder drives the splicing rubber roller 8, and the driving device drives the splicing cutter 7. The splicing rubber roller 8 can move toward the first telescopic shaft 2 under the drive of the third cylinder, and its function is to press the substrate 3 and the adhesive tape on the new and old (corresponding to unwinding and rewinding) rolls to splice the tapes; the splicing cutter 7 can cut the substrate 3 and separate the old roll under the drive of the driving device.

[0050] It can be understood that: by controlling the positions of the first splicing roller 5 and the second splicing roller 11 respectively by the first cylinder 6 and the second cylinder 12, it can be ensured that the splicing point is always in the central horizontal position when the roll diameter is different, the advancement time of the splicing rubber roller 8 can be determined by measuring the detection value of the roll diameter sensor 13, and the splicing cutter 7 starts to move when the corresponding sensor 14 in front of the splicing rubber roller 8 detects the coil material, and the success rate of splicing is higher.

[0051] A slide rail is arranged on the fixed frame in a horizontal direction, and the sliding seat is slidably connected with the fixed frame through the slide rail.

[0052] The sliding seat is also provided with a beam sensor 14 for detecting the position of the substrate 3. The beam sensor 14 is electrically connected to the third cylinder and the driving device, respectively. The third cylinder and the driving device can be controlled by the above-mentioned controller, that is, the beam sensor 14 is electrically connected to the controller, and the controller is electrically connected to the third cylinder and the driving device, respectively. When the beam sensor 14 detects the substrate 3 on the first telescopic shaft 2, the piston rod of the third cylinder extends to press the tape splicing rubber roller 8 against the substrate 3 on the first telescopic shaft 2, and at the same time, the driving device drives the tape splicing cutter 7 to rotate clockwise to complete the automatic tape splicing action.

[0053] It is understandable that the third fixed roller 9 can be fixed on the sliding seat and move with the tape rubber roller 8, the tape cutter 7 and the corresponding sensor 14, or the third fixed roller 9 can be fixed separately on the fixed frame. It can be specifically set according to actual conditions and is not limited here.

[0054] In a specific implementation, the substrate 3 is introduced into the next process via the second fixed roller 4 , the first connecting roller 5 and the third fixed roller 9 .

[0055] During unwinding: When the roll diameter sensor 13 detects that the substrate 3 of the second telescopic shaft 1 is smaller than the set value, the first cylinder 6 is controlled to drive the first tape roller 5 to a suitable position (such as Figure 1 As shown), at this time, the sliding seat is controlled to move toward the first telescopic shaft 2. When the opposing sensor 14 detects the substrate 3 on the first telescopic shaft 2, the piston rod of the third cylinder is controlled to extend, so that the tape splicing rubber roller 8 is pressed tightly against the substrate 3 on the first telescopic shaft 2. At the same time, the driving device drives the tape splicing cutter 7 to rotate clockwise to complete the automatic tape splicing action.

[0056] When winding: When the roll diameter sensor 13 detects that the substrate 3 of the second telescopic shaft 1 reaches the set value, the second cylinder 12 drives the second tape roller 11 to a suitable position (such as Figure 2 As shown), the substrate 3 on the second telescopic shaft 1 is pressed tightly to assist in winding. When winding continues until a roll change is required, the second cylinder 12 drives the second splicing roller 11 to separate from the substrate 3, and then the first cylinder 6 drives the first splicing roller 5 to a suitable position, and controls the sliding seat to move toward the first telescopic shaft 2. When the opposing sensor 14 detects the substrate 3 on the first telescopic shaft 2, the piston rod of the third cylinder is controlled to extend, so that the splicing rubber roller 8 is pressed tightly against the substrate 3 on the first telescopic shaft 2, and at the same time, the driving device drives the splicing cutter 7 to rotate clockwise to complete the automatic splicing action.

[0057] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An automatic belt splicing and pressing device, characterized in that: include: Flip the rack; The turning frame is provided with a first telescopic shaft, a second telescopic shaft, a first fixed roller and a second fixed roller; The first telescopic shaft and the second telescopic shaft are arranged symmetrically along the rotation axis of the flip frame; The first fixed roller and the second fixed roller are symmetrically arranged along the rotating shaft of the turning frame; The turning frame is also provided with a first belt-joining roller, a first cylinder, a first connecting rod, a second belt-joining roller, a second cylinder and a second connecting rod; One end of the first connecting rod is connected to the first belt connecting roller, and the other end is hinged to the piston rod of the first cylinder; One end of the second connecting rod is connected to the second belt connecting roller, and the other end is hinged to the piston rod of the second cylinder; When in use, the positions of the first splicing roller and the second splicing roller are respectively controlled by the first cylinder and the second cylinder, so that the first splicing roller and the second splicing roller become movable rollers, thereby easily controlling the direction position of the substrate during splicing, ensuring that when the winding diameters are different, the splicing point is always in the central horizontal position, so that the success rate of splicing is higher.

2. The automatic belt splicing and pressing device according to claim 1, characterized in that: The turning frame is provided with a first supporting rod and a second supporting rod; The first support rod and the second support rod are symmetrically arranged along the rotation axis of the flip frame; The first fixed roller and the second fixed roller are fixed to the top of the first support rod and the bottom of the second support rod respectively.

3. The automatic belt splicing and pressing device according to claim 2, characterized in that: The first cylinder is fixed on the second support rod through a first mounting seat; The second cylinder is fixed on the first support rod through a second mounting seat.

4. The automatic belt splicing and pressing device according to claim 2, characterized in that: A roll diameter measuring sensor is provided on a side of the first support rod facing the first telescopic axis and on a side of the second support rod facing the second telescopic axis.

5. The automatic belt splicing and pressing device according to claim 4, characterized in that: Also includes: Controller; The roll diameter measuring sensor is electrically connected to the controller; The controller is electrically connected to the first cylinder and the second cylinder respectively.

6. The automatic belt splicing and pressing device according to claim 1, characterized in that: Also includes: Fixed rack; The fixed frame is provided with a third fixed roller, a tape joint rubber roller and a tape joint cutter in sequence from top to bottom.

7. The automatic belt splicing and pressing device according to claim 6, characterized in that: The fixed frame is provided with a sliding seat which can slide back and forth on the fixed frame in a horizontal direction; The splicing rubber roller and the splicing cutter are both located on the sliding seat, and the sliding seat is provided with a third cylinder for driving the splicing rubber roller to move forward and backward and a driving device for driving the splicing cutter to rotate; The third cylinder is drivingly connected to the tape splicing rubber roller, and the driving device is drivingly connected to the tape splicing cutter.

8. The automatic belt splicing and pressing device according to claim 7, characterized in that: The fixed frame is provided with a slide rail in the horizontal direction; The sliding seat is slidably connected to the fixed frame via the sliding rail.

9. The automatic belt splicing and pressing device according to claim 7, characterized in that: The sliding seat is also provided with a through-beam sensor for detecting the position of the substrate; The through-beam sensor is electrically connected to the third cylinder and the driving device respectively.

10. The automatic belt splicing and pressing device according to claim 7, characterized in that: The third fixed roller is fixed on the sliding seat.

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