Bandage cutting machine

Abstract

The utility model provides a bandage cutting machine. The bandage cutting machine comprises a driving part used for conveying a bandage, a cutting part, a spraying part, a workbench and a plurality of brackets distributed on the workbench in the bandage conveying direction, wherein the cutting part and the spraying part are aligned to the bandage; wherein one end of the workbench is a feeding end, and the other end of the workbench is a discharging end; the bracket is used for supporting the bandage; the driving part drives the binding belt to penetrate through the bracket from the feeding end and to be conveyed to the discharging end; the cutting part is used for cutting the bandage into a target bandage with a target length; and the spraying part is used for spraying deionized water to the target position of the target bandage. By means of the conveying characteristic of the binding belt, photosensitive switches are arranged in the support, the distance between the photosensitive switches is the target length, the photosensitive switches are connected in series, and when the photosensitive switches are triggered, the cutting part and the spraying part are started. The control process is simple, the cost is low, meanwhile, the deionized water lubricates the target bandage to provide the isolation layer, friction in the subsequent packaging process is reduced, and the stability and safety of the product are improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of band packaging battery stacks, in particular to a band cutting machine. BACKGROUND

[0002] The band is mostly made of metal material, almost cannot be extended, has poor flexibility, and has certain bending resistance. The band is mainly applied to the packaging process of the battery stack. After the band is fed, aligned, bent, and laser welded, the band binds the electric push and the end plates on both sides of the battery stack. The tension of the band is the packaging force of the battery stack. Therefore, the state of the band has a great influence on the effect of the subsequent battery stack packaging. However, due to the packaging load, the stress in the structure is large, and there is a large friction force between the band and the end plate, so that the load stability of the battery stack is poor. In addition, when the band made of metal material is close to the battery stack, an electric connection is easily generated, and then a leakage and a short circuit are easily generated, so that the safety of the packaged product cannot be easily ensured. CONTENT OF THE UTILITY MODEL

[0003] One of the technical problems to be solved by the present disclosure is that, in the process of packaging the battery stack by the band, due to the friction and the strong conductivity of the metal, the load stability of the battery stack is poor and the safety is low.

[0004] To solve the above technical problem, the present disclosure provides a band cutting machine, which comprises a driving part for conveying the band, a cutting part and a spraying part for aligning the band, a workbench, and a plurality of supports distributed on the workbench along the conveying direction of the band; wherein one end of the workbench is a feeding end and the other end is a discharging end; the support is used to support the band; the driving part drives the band to pass through the support from the feeding end to the discharging end; the cutting part is used to cut the band into a target band with a target length; and the spraying part is used to spray deionized water to a target position of the target band.

[0005] In some embodiments, the band cutting machine further comprises a PLC circuit, which is used to control the cutting part to cut the band into a target band with a target length, and then control the spraying part to spray deionized water to a target position of the target band, the target length being determined according to the corresponding packaging height of the battery stack, and the target position being determined according to the welding position of the target band.

[0006] In some embodiments, the support comprises a bottom plate, the lower surface of the bottom plate is in contact with the workbench, and there is no obstruction above the bottom plate, and the band is located on the upper surface of the bottom plate.

[0007] In some embodiments, the support comprises a first support and a second support, the distance between the first support and the second support is the target length; the bottom plate of the first support is provided with a first switch, the bottom plate of the second support is provided with a second switch, and the first switch and the second switch are both photosensitive switches and are connected in series.

[0008] In some embodiments, the first support is a fixed support and is close to the feeding end, and the second support is a movable support and is between the discharging end and the fixed support.

[0009] In some embodiments, the first support is a fixed support and is close to the feeding end, and the second support is a fixed support and is between the discharging end and the first support; the second support is at least two, and the second switches are connected in parallel; the first support and each second support are spaced apart by different target lengths.

[0010] In some embodiments, the cutting part is aligned with the first support; when the PLC circuit detects that the first switch and the second switch are triggered at the same time, the cutting part is started to cut the target bandage.

[0011] In some embodiments, when the target position is the two ends of the target bandage, the spraying part is provided with two, one of which is aligned with the first support, and the other is always aligned with the second support; when the PLC circuit detects that the first switch and the second switch are triggered at the same time, the spraying part is started to spray the target bandage.

[0012] In some embodiments, the bottom plate is bent upwards at both ends and forms an opening above.

[0013] In some embodiments, the support device further comprises a guide rod, which is located above the workbench and parallel to the direction of the bandage conveying, and the cutting part and / or the spraying part are suspended from the guide rod.

[0014] Through the above technical solutions, the bandage cutting machine provided by the present disclosure is provided with a spraying part to spray deionized water on the target bandage after cutting, so as to set a protective lubricating layer for the target bandage, facilitate to reduce the friction with the end plate in the subsequent packaging process, improve the load stability; at the same time, the electrical conductivity of the target bandage is reduced, and the safety of the packaged electric pile product is improved; the high temperature generated by laser cutting can also be effectively reduced, and the operation safety is ensured. At the same time, the present disclosure uses a simple photosensitive switch control mode, sets the photosensitive switch on the support bearing the bandage, ingeniously uses the characteristics of the bandage conveying and the series-parallel mode of the photosensitive switch, and then simply and directly controls the start and stop of the cutting part and the spraying part, which is practical and low in cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art without creative labor.

[0016] Figure 1 is a structural schematic diagram of the electric pile after packaging;

[0017] Figure 2 is a control structure schematic diagram of the binding tape cutting machine disclosed by the embodiment of the present disclosure;

[0018] Figure 3 is a main body structure schematic diagram of the binding tape cutting machine disclosed by the embodiment of the present disclosure;

[0019] Figure 4 is Figure 3 is a structure schematic diagram when the spraying part is arranged on the workbench;

[0020] Explanation of reference signs:

[0021] 1, electric pile; 2, end plate; 3, binding tape; 4, workbench; 5, support; 51, bottom plate; 6, spraying part. DETAILED DESCRIPTION

[0022] The embodiments of the present disclosure will be further described in detail below with reference to the drawings and embodiments. The detailed description of the following embodiments and the drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure, and the present disclosure can be implemented in many different forms, not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0023] The present disclosure provides these embodiments in order to make the present disclosure thorough and complete, and fully express the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these embodiments should be interpreted as merely exemplary, and not as a limitation.

[0024] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] In addition, "first", "second", and similar words used in the present disclosure do not indicate any order, number, or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0026] It should be noted that, in the description of the present disclosure, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances. When it is described that a specific device is located between the first device and the second device, there can be or can not be an intermediate device between the specific device and the first device or the second device.

[0027] All the terms used in the present disclosure have the same meaning as understood by those skilled in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that the terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or excessively formalized sense, unless otherwise defined herein.

[0028] The techniques, methods, and devices known to those skilled in the relevant art can not be discussed in detail, but in appropriate cases, the techniques, methods, and devices should be considered as part of the specification.

[0029] The utility model discloses a bandage cutting machine mainly aims at the packaging process of electric pile 1. Please refer to Figure 1 , it is the schematic diagram of electric pile packaging completion. Among them, electric pile 1 is formed by the series connection of several batteries;End plate 2 is slightly wider than the width of the battery to avoid the short circuit of bandage 3 and electric pile 1;Bandage 3 is provided with multiple, for compacting and fixing several batteries to reduce the gap between the batteries. When packaging, first, the adjacent battery is placed, then the end plate 2 is placed outside the battery on both sides, finally, each bandage 3 is bent around the circumference of the end plate 2 and the battery after being wound around one time, and is welded at the overlapping part, at this time, the packaging is completed. As can be known from the above description, the length of bandage 3 required by electric pile 1 of different sizes and different battery quantities is different, the bandage cutting machine proposed by the utility model is applied to the process before packaging, and bandage 3 is cut into target bandage with corresponding length suitable for electric pile 1, and the lubricating process of target bandage is also creatively added.

[0030] Specifically, please refer to Figures 2-3The utility model discloses a bandage cutting machine, including the drive part for conveying bandage 3, the cutting part and the injection part 6 of alignment bandage 3, workbench 4, a plurality of support 5 are distributed on workbench 4 along the bandage 3 transmission direction, PLC circuit. Among them, support 5 is used to support bandage 3, the effect of support 5 is except supporting bandage 3, reduce the loss of bandage 3 and workbench 4 friction, still has the effect of restriction guiding bandage 3 transmission direction. Support 5 includes at least bottom plate 51, and the lower surface of bottom plate 51 is contacted with workbench 4 and the upper side of bottom plate 51 is not sheltered, and bandage 3 is located on the upper surface of the bottom plate 51. In the embodiment, the both ends of bottom plate 51 are bent upwards and form an opening above. The upper side of bottom plate 51 is not sheltered on the one hand considering production efficiency, and it is not conducive to mass production to establish too many constraints, and on the other hand is for the subsequent layout of photosensitive switch. In the embodiment, one end of workbench 4 is the feeding end, and the other end is the discharging end. The drive part drives bandage 3 to pass through support 5 from the feeding end to the discharging end. The cutting part is used to cut bandage 3 into target bandage with target length, and the cutting part can adopt laser cutting. The injection part 6 is used to spray deionized water to the target position of the target bandage. The injection part 6 mainly refers to the spray head. Generally, the injection part 6 can also include the spray head, the solution storage tank, the conduit connecting the spray head and the solution storage tank, the pressure applying device, and the like. The PLC circuit can control the start and stop of the injection part 6 through the electromagnetic valve. The utility model has the function of spraying deionized water to the target bandage after cutting. After cutting, the deionized water adheres to the target bandage, and the increased lubricating layer reduces the friction between the bandage 3 and the end plate 2 in the subsequent packaging process. The low conductivity of the deionized water improves the load stability and product safety.

[0031] For control, please refer to Figure 2In the embodiment, the PLC circuit is used for control. The PLC circuit is used for controlling the cutting part to cut the binding tape 3 into a target binding tape with a target length, and then controlling the spraying part 6 to spray deionized water to the target position of the target binding tape. The target length and the target position are determined by presetting programs or values in the PLC circuit. For example, the target length corresponding to the target binding tape can be calculated according to the built-in program and the size of the battery stack 1, and then the target position of spraying deionized water can be determined according to the target length and the size of the battery stack 1. In the embodiment, the spraying position is the welding position. Generally, the two ends of the target binding tape can be selected, and of course, the target binding tape can be sprayed at any position according to the needs. The target position can be a specific value or a certain range. In the embodiment, the PLC circuit controls the opening and closing of the circuit by using the light-sensitive switch in series. According to the structure of the disclosure and the conveying mode of the binding tape 3, the disclosure aims to reduce the cost and facilitate the operation. The light-sensitive switch is used in series to control the opening and closing of the circuit, and the support 5 is classified according to the function. The support 5 includes a first support, a second support and a third support. The distance between the first support and the second support is the target length. The third support is not provided with a switch and only plays a supporting and limiting role. The bottom plate 51 of the first support is provided with a first switch, and the bottom plate 51 of the second support is provided with a second switch. The first switch and the second switch are connected in series. When the first switch and the second switch are triggered at the same time, the PLC circuit starts the cutting part to cut the binding tape 3 to obtain a target binding tape with a target length from the first switch to the second switch. At this time, the cutting part is closed, and the spraying part 6 is started to spray deionized water to the target position of the target binding tape. If no cutting is needed, the cutting part is always closed. When the first switch and the second switch are triggered at the same time, the PLC circuit directly starts the spraying part 6 to spray deionized water to the target position of the target binding tape. When the target position is the two ends of the target binding tape, the spraying part 6 is provided with two, one spraying part 6 is aligned with the first support, and the other spraying part 6 is always aligned with the second support. The PLC circuit detects that the first switch and the second switch are triggered at the same time, and starts the spraying part 6 to spray the target binding tape. Then, under the pushing of the next binding tape 3 close to the inlet end, the target binding tape that has been lubricated and / or cut is transported to the next process for packaging.

[0032] Specifically, according to the different number of second switches, the utility model discloses the different mode of setting support 5. When the second switch is only one, the first support is fixed support and is close to the feeding end, and the second support is movable support and is between the discharging end and the fixed support. This case is suitable for the size of the electric pile 1 to change continuously, flexible and variable, and high practicability. Among them, the distance between the movable support and the fixed support is determined according to the target length, and when the current target length is different from the next target length, the distance between the movable support and the fixed support can be made to be the target length required by moving the position of the movable support. The movable support is set to be groove wheel type, and the bottom plate 51 of the movable support extends downward to the pulley matched with the groove, and the pulley can be provided with locking device. Since the first support is fixed support and the band 3 is conveyed in the direction away from the first support, the cutting part is aligned with the first support, at this time, the end of the band 3 close to the discharging end does not need to be cut, only needs to be cut at a certain place close to the feeding end. As the band 3 is conveyed from the feeding end to the discharging end, the band 3 first passes through the first support, at this time, the first switch is triggered, but the circuit is not connected due to series connection. Then the band 3 continues to move and passes through the second support, the second switch is triggered, the PLC circuit detects that the first switch and the second switch are triggered at the same time, and the cutting part is started to obtain the target band. Then the spraying part 6 can move to spray deionized water in the target band length range. When the target position is the two ends of the target band, the spraying part 6 can still move to spray. Two spraying parts 6 can also be adopted to spray, one spraying part 6 is aligned with the first support (not movable), and the other spraying part 6 (movable) is always aligned with the second support; the PLC circuit detects that the first switch and the second switch are triggered at the same time, and the spraying part 6 sprays the two ends of the target band. When the second switch is at least two, the first support is fixed support and is close to the feeding end, and the second support is fixed support and is between the discharging end and the first support; the second switches are connected in parallel; the first support and each second support are spaced apart by different target lengths. This case is suitable for the size of the electric pile 1 to change discretely, without the cost of adopting movable support, and is convenient to operate. The specific process is that the PLC circuit determines the position of the first switch and the size of the target length, and then determines the position of the second switch. Since the first support is fixed support and the band 3 is conveyed in the direction away from the first support, the cutting part is aligned with the first support, at this time, the end of the band 3 close to the discharging end does not need to be cut, only needs to be cut at a certain place close to the feeding end. Under the driving of the driving device, the end of the band 3 away from the feeding end first passes through the first switch, the first switch is triggered, and the band 3 continues to move. When the second switch is triggered, the band 3 has extended the target length distance, and since the first switch and the second switch are connected in series, the circuit is connected. Since the second switch is provided with multiple, it is necessary to judge whether the target second switch corresponding to the target length is triggered when the circuit is connected, at this time, it can be judged according to whether each second switch is triggered.For example, according to the distance from the discharge end, the second switch a, the second switch b, the second switch c, the second switch d are in turn, the target length of the second switch c needs to be cut, only when the second switch a, the second switch b, the second switch c are triggered, and the second switch d is not triggered, it means that the binding tape 3 has extended the target length from the first switch. At this time, the PLC circuit detects that the first switch and the target second switch are triggered at the same time, and the cutting part obtains the target binding tape. Then the spraying part 6 can move to spray deionized water in the target binding tape length range. When the target position is the two ends of the target binding tape, the spraying part 6 can still move to spray. Two spraying parts 6 can also be used, one spraying part 6 is aligned with the first support (not movable), and the other spraying part 6 (movable) is always aligned with the target second support; the PLC circuit detects that the first switch and the second switch are triggered at the same time, and the spraying part 6 sprays the two ends of the target binding tape.

[0033] The present disclosure also includes a support device, which can extend downward from the top of the factory building to above the workbench 4, or extend upward from the ground to above the workbench 4. The support device at least includes a guide rod, which is located above the workbench 4 and parallel to the conveying direction of the binding tape 3, and the cutting part and / or the spraying part 6 are suspended from the guide rod. The cutting part can be fixed or movably connected to the guide rod, and similarly, the spraying part 6 can also be fixed or movably connected to the guide rod. In addition, the spraying part 6 can also be placed on the workbench 4, and a corresponding track is provided to realize sliding; or please refer to Figure 4 , the spraying part 6 can also be directly fixed at a specific position on the workbench 4.

[0034] So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0035] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A strap cutting machine characterized by, The cutting machine comprises a driving part for conveying the binding tape (3), a cutting part and a spraying part (6) for aligning the binding tape (3), a workbench (4), and a plurality of supports (5) distributed on the workbench (4) along the conveying direction of the binding tape (3); wherein one end of the workbench (4) is an inlet end, and the other end is an outlet end; the support (5) is used to support the binding tape (3); the driving part drives the binding tape (3) to pass through the support (5) from the inlet end to the outlet end; the cutting part is used to cut the binding tape (3) into a target binding tape (3) with a target length; and the spraying part (6) is used to spray deionized water to a target position of the target binding tape (3).

2. The strap cutting machine of claim 1, wherein, The cutting machine further comprises a PLC circuit for controlling the cutting part to cut the binding tape (3) into a target binding tape (3) with a target length, and then controlling the spraying part (6) to spray deionized water to a target position of the target binding tape (3), wherein the target length is determined according to the corresponding stack packaging height of the binding tape (3), and the target position is determined according to the welding position of the target binding tape (3).

3. The strap cutting machine of claim 2, wherein, The support (5) comprises a bottom plate (51), the lower surface of the bottom plate (51) is in contact with the workbench (4), and the upper surface of the bottom plate (51) is not blocked; and the binding tape (3) is located on the upper surface of the bottom plate (51).

4. The strap cutting machine of claim 3, wherein, The support (5) comprises a first support and a second support, the distance between the first support and the second support is the target length; the bottom plate (51) of the first support is provided with a first switch, and the bottom plate (51) of the second support is provided with a second switch, both the first switch and the second switch are photosensitive switches and are connected in series.

5. The strap cutting machine of claim 4, wherein, The first support is a fixed support and is close to the inlet end, and the second support is a movable support and is between the outlet end and the fixed support; and the second support is provided with one.

6. The strap cutting machine of claim 4, wherein, The first support is a fixed support and is close to the inlet end, and the second support is a fixed support and is between the outlet end and the first support; the second support is at least two, and the second switches are connected in parallel; and the distance between the first support and each second support is different.

7. The strap cutting machine of claim 4, wherein, The cutting part is aligned with the first support; when the PLC circuit detects that the first switch and the second switch are triggered at the same time, the cutting part is started to cut the binding tape (3) to obtain the target binding tape (3).

8. The strap cutting machine of claim 4, wherein, When the target position is the two ends of the target binding tape (3), the spraying part (6) is provided with two, one spraying part (6) is aligned with the first support, and the other spraying part (6) is always aligned with the second support; when the PLC circuit detects that the first switch and the second switch are triggered at the same time, the spraying part (6) is started to spray the target binding tape (3).

9. The strap cutting machine of claim 3, wherein, The bottom plate (51) is bent upwards at both ends and forms an opening above.

10. The strap cutting machine of claim 1, wherein, Further comprising a supporting device, the supporting device comprises a guide rod, the guide rod is located above the workbench (4) and is parallel to the conveying direction of the binding tape (3), and the cutting part and / or the spraying part (6) are suspended on the guide rod.

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