Bus bar punching and cutting device

Abstract

The utility model discloses a bus bar punching and cutting device which comprises a base, a driving piece, a cutting and punching die and an elastic supporting piece, the driving piece is arranged on the base, the cutting and punching die is arranged at the driving end of the driving piece, a punching hole set is formed in the base in the first direction, a guide hole is formed in the base in the second direction, the punching hole set communicates with the guide hole, and the elastic supporting piece is arranged on the base. The cutting and punching die and the punching hole set are oppositely arranged, the elastic supporting piece is arranged on the base in the second direction close to the punching hole set, the supporting end of the elastic supporting piece stretches into the guide hole in the first direction, and the first direction is perpendicular to the second direction. According to the technical scheme, the problems that due to the fact that the texture of the photovoltaic welding strip is soft, the punched-off end of the photovoltaic welding strip can be bent downwards to stretch into the punching hole, manual intervention is needed to move out the end of the photovoltaic welding strip stretching into the punching hole to prepare the next set of bus bars, time and labor are wasted, and the bus bar preparation efficiency is reduced can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bus bar preparation, in particular to a bus bar punching and cutting device. Background Art

[0002] In a photovoltaic module, there are multiple groups of bus bars, and some of the bus bars are welded to a junction box. Usually, the end of the bus bar welded to the junction box is folded upward, and some also have through holes provided at the folded end, so that the shape of the bus bar will be different according to the welding position, and the manufacturing process is also different.

[0003] In the related art, the welding process of the bus bar welded to the junction box is as follows: First, a photovoltaic solder tape is prepared into a group of straight bus bars by a cutting mechanism, then through holes are punched by a punching mechanism, then one end or both ends of the bus bar are folded upward, and finally it is welded to a plurality of cell strings arranged in a layout. Among them, the cutting mechanism and the punching mechanism can be an integrated structure. Among them, the cutting mechanism uses a blanking method to prepare the bus bar. Since the photovoltaic solder tape is soft, the end of the photovoltaic solder tape cut off will bend downward and extend into the blanking hole, and manual intervention is required to remove the end of the photovoltaic solder tape extending into the blanking hole to prepare the next group of bus bars, which is time-consuming and laborious and reduces the preparation efficiency of the bus bar. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a bus bar punching and cutting device to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A bus bar punching and cutting device, including a base, a driving member, a cutting and punching die, an elastic support member and an elastic pressing member. The driving member is arranged on the base, the cutting and punching die is arranged at the driving end of the driving member, the elastic pressing member is arranged on the cutting and punching die, the base is provided with a punching hole group along a first direction, the base is provided with a guiding hole along a second direction, the punching hole group is communicated with the guiding hole, the cutting and punching die is arranged opposite to the punching hole group, the elastic support member is arranged on the base adjacent to the punching hole group along the second direction, the elastic pressing member is arranged opposite to the elastic support member, and the supporting end of the elastic support member extends into the guiding hole along the first direction, and the first direction is perpendicular to the second direction.

[0006] Preferably, it further includes an elastic pressing member, the elastic pressing member is arranged on the cutting and punching die, and the elastic pressing member is arranged opposite to the elastic support member.

[0007] Preferably, the base includes a support frame and a pressing plate. The cutting and punching die is provided with guide posts. The pressing plate is arranged on the support frame. The punching hole group penetrates through the support frame and the pressing plate. The support frame is provided with through holes. The guide posts are slidably matched with the through holes. The axis of the guide holes is parallel to the first direction.

[0008] Preferably, the support frame is provided with the guide holes along the second direction. The pressing plate is provided with grooves along the second direction. The grooves and the guide holes form a feeding channel.

[0009] Preferably, the cutting and punching die is hingedly connected to the driving end of the driving member.

[0010] Preferably, the supporting end of the elastic support member is a spherical protrusion.

[0011] Preferably, the elastic support member is a spring plunger.

[0012] Preferably, the cutting and punching die includes a cutting punch and a punching column. The punching hole group includes a cutting hole and a punching hole. The cutting punch is oppositely arranged with the cutting hole. The punching column is oppositely arranged with the punching hole.

[0013] Preferably, the elastic pressing member includes a spring and a pressing column. The cutting and punching die is provided with a mounting hole. A part of the pressing column extends into the mounting hole and is slidably matched. The spring is located in the mounting hole. Two ends of the spring are elastically contacted with the inner wall of the mounting hole and a part of the pressing column respectively.

[0014] Preferably, in the first direction, the length of the pressing end of the elastic pressing member is longer than the length of the cutting end of the cutting and punching die.

[0015] The technical solution adopted in this application can achieve the following beneficial effects:

[0016] In a busbar punching and cutting device disclosed in this application, a driving member is arranged on a base. A cutting and punching die is arranged at the driving end of the driving member. The base is provided with a punching hole group along a first direction. The base is provided with guide holes along a second direction. The first direction is perpendicular to the second direction. The punching hole group is communicated with the guide holes. An elastic support member is arranged on the base along the second direction adjacent to the punching hole group. The supporting end of the elastic support member extends into the guide holes along the first direction. The cutting and punching die is oppositely arranged with the punching hole group.

[0017] During the use of the bus bar punching and cutting device, one end of the photovoltaic solder tape passes through the guiding hole and moves to the relative position of the punching hole group under its guiding action. Among them, one end of the photovoltaic solder tape passes through and covers the supporting end of the elastic support. The tensile part of the photovoltaic solder tape is pulled by the solder tape reel, and is in a taut state. Therefore, the supporting end of the elastic support will be pressed and retracted. Along the second direction, the photovoltaic solder tape moves to extend a preset length (i.e., the welding length meeting the requirements of the photovoltaic module) relative to the punching hole group. The driving part drives the cutting and punching die to move down. The punching die extends into the punching hole group and slides in cooperation to cut the photovoltaic solder tape to form a bus bar.

[0018] When the photovoltaic solder tape continues to move, the supporting end of the elastic support contacts and jacks up the photovoltaic solder tape, thereby providing a lifting and supporting effect, so that the photovoltaic solder tape can be lifted a certain distance. When passing through the punching hole group again, even if one end of the photovoltaic solder tape is bent, it will not touch the inner wall of the punching hole group, and the continuous conveying of the photovoltaic solder tape is completed, thus avoiding manually adjusting the position of the end of the photovoltaic solder tape during downtime, saving time and effort, and improving the preparation efficiency of the bus bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0020] Figure 1 The front view of the bus bar punching and cutting device disclosed in the embodiment of the present application;

[0021] Figure 2 is Figure 1 the sectional view of;

[0022] Figure 3 The side view of the bus bar punching and cutting device disclosed in the embodiment of the present application;

[0023] Figure 4 is Figure 3 the sectional view of.

[0024] In the figure: 100, base; 110, punching hole group; 120, guiding hole; 130, support frame; 140, pressing plate; 150, guiding column; 200, driving part; 300, cutting and punching die; 310, cutting punch; 320, punching column; 400, elastic support; 500, elastic pressing part; 510, spring; 520, pressing column; 600, waste bin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0028] As Figures 1 to 4 shown, the present application discloses a bus bar punching and cutting device. The disclosed bus bar punching and cutting device includes a base 100, a driving member 200, a punching and cutting die 300, and an elastic support member 400.

[0029] Specifically, the driving member 200 is disposed on the base 100, the punching and cutting die 300 is disposed at the driving end of the driving member 200. The base 100 is provided with a punching hole group 110 in a first direction, and the base 100 is provided with a guiding hole 120 in a second direction. The first direction is perpendicular to the second direction. The punching hole group 110 communicates with the guiding hole 120. The elastic support member 400 is disposed on the base 100 adjacent to the punching hole group 110 in the second direction. The supporting end of the elastic support member 400 extends into the guiding hole 120 in the first direction. The punching and cutting die 300 is disposed opposite to the punching hole group 110.

[0030] During the use of the bus bar punching and cutting device, one end of the photovoltaic solder ribbon passes through the guiding hole 120 and moves to the relative position of the punching hole group 110 under its guiding action. Among them, one end of the photovoltaic solder ribbon passes through and covers the supporting end of the elastic support member 400. The photovoltaic solder ribbon is pulled by the tensile hand and the solder ribbon reel and is in a taut state. Thus, the supporting end of the elastic support member 400 will be compressed and retracted. In the second direction, the photovoltaic solder ribbon moves to extend a preset length (i.e., the welding length required to meet the needs of the photovoltaic module) relative to the punching hole group 110. The driving member 200 drives the punching and cutting die 300 to move downward. The punching die extends into the punching hole group 110 and slides in cooperation to cut the photovoltaic solder ribbon to form a bus bar.

[0031] When the photovoltaic solder strip continues to move, the supporting end of the elastic support 400 contacts and lifts the photovoltaic solder strip, thereby providing a lifting and supporting effect, so that the photovoltaic solder strip can be lifted by a certain distance. When passing through the punching hole group 110 again, even if one end of the photovoltaic solder strip is bent, it will not contact the inner wall of the punching hole group 110, and the continuous conveying of the photovoltaic solder strip is completed, thereby avoiding manual adjustment of the position of the end of the photovoltaic solder strip during shutdown, saving time and effort, and thus improving the preparation efficiency of the bus bar.

[0032] In addition, the driving member 200 can be a telescopic cylinder, a telescopic electric cylinder, etc., and the present application does not make any restrictions on this.

[0033] In the embodiment of the present application, the disclosed bus bar punching and cutting device may further include an elastic pressing member 500. The elastic pressing member 500 is arranged on the punching and cutting die 300. The elastic pressing member 500 is arranged opposite to the elastic support 400. When the photovoltaic solder strip moves to a preset length (i.e., the welding length required to meet the needs of the photovoltaic module) relative to the punching hole group 110, the elastic pressing member 500 descends with the punching and cutting die 300 to contact the photovoltaic solder strip, and pushes the photovoltaic solder strip and the supporting end of the elastic support 400, so that the supporting end retracts, achieving the effect of flattening and fixing the photovoltaic solder strip.

[0034] In the embodiment of the present application, the base 100 may include a support frame 130 and a pressing plate 140. Specifically, the punching and cutting die 300 is provided with a guide post 150. The pressing plate 140 is arranged on the support frame 130. The punching hole group 110 penetrates through the support frame 130 and the pressing plate 140. The support frame 130 is provided with a through hole, and the guide post 150 is slidably matched with the through hole. The axis of the guide hole 120 is parallel to the first direction. The above structure improves the moving accuracy of the punching and cutting die 300 through the sliding fit between the guide post 150 and the through hole, ensuring the preparation effect of the bus bar.

[0035] In a further technical solution, the support frame 130 may be provided with a guide hole 120 along the second direction, and the pressing plate 140 is provided with a groove along the second direction. The groove and the guide hole 120 form a feeding channel, and a limiting fit for the photovoltaic solder strip in the second direction is formed through the pressing plate 140 and the support frame 130.

[0036] In yet another technical solution, the punching and cutting die 300 may be hingedly connected to the driving end of the driving member 200. Under the sliding fit between the guide post 150 and the guide hole 120, the punching and cutting module can only obtain a driving force in the first direction at the driving member 200, so that the installation accuracy of the driving member 200 can be reduced. In other words, it is beneficial to reduce the machining accuracy of the flatness of the base 100.

[0037] In the embodiments of the present application, the supporting end of the elastic support member 400 can be a spherical protrusion. The spherical protrusion helps to provide a guiding effect for the photovoltaic solder ribbon, preventing the photovoltaic solder ribbon from colliding and stopping when moving to the supporting end.

[0038] In an alternative solution, the elastic support member 400 can be a combined structure of an elastic rubber rod, a spring 510 connected to nylon, etc. In another alternative solution, the elastic support member 400 can be a spring plunger. The spring plunger has a self-thread, which is convenient for adjusting the size of the supporting end extending into the guiding hole 120, thereby facilitating the stability of the bus bar cutting and punching.

[0039] In the embodiments of the present application, the cutting and punching die 300 can include a cutting punch 310 and a punching post 320. Specifically, the punching hole group 110 includes a cutting hole and a punching hole. The cutting punch 310 is disposed opposite to the cutting hole, and the punching post 320 is disposed opposite to the punching hole.

[0040] In the embodiments of the present application, the base 100 can further be provided with a waste bin 600. Specifically, the inner cavity of the waste bin 600 communicates with the punching hole group 110, and the cut waste can be uniformly collected through the waste bin 600.

[0041] In the embodiments of the present application, the elastic pressing member 500 can include a spring 510 and a pressing post 520. The cutting and punching die 300 is provided with a mounting hole. A part of the pressing post 520 extends into the mounting hole and is in sliding fit. The spring 510 is located in the mounting hole, and both ends of the spring 510 are elastically in contact with the inner wall of the mounting hole and a part of the pressing post 520 respectively.

[0042] Of course, the elastic pressing member 500 can also be a silicone column, a sponge column, etc., and the present application does not impose any restrictions on this.

[0043] In the embodiments of the present application, along the first direction, the length of the pressing end of the elastic pressing member 500 can be longer than the length of the cutting end of the cutting and punching die 300, so that the photovoltaic solder ribbon moves to a preset length (i.e., the welding length meeting the requirements of the photovoltaic module) relative to the punching hole group 110. The driving member 200 drives the cutting and punching die 300 to move downward. The elastic pressing member 500 descends with the cutting and punching die 300, but first contacts the photovoltaic solder ribbon and pushes the photovoltaic solder ribbon and the supporting end of the elastic support member 400, so that the supporting end retracts, completing the flattening and fixing of the photovoltaic solder ribbon. Then the punching die extends into the punching hole group 110 and is in sliding fit to cut the photovoltaic solder ribbon to form a bus bar, realizing that the photovoltaic solder ribbon is first pressed and fixed and then cut, thereby ensuring the production effect of the bus bar.

[0044] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A busbar punching and cutting device, characterized in that, It includes a base (100), a driving member (200), a cutting and punching die (300), and an elastic support member (400). The driving member (200) is arranged on the base (100), the cutting and punching die (300) is arranged at the driving end of the driving member (200). The base (100) is provided with a punching hole group (110) along a first direction, the base (100) is provided with a guiding hole (120) along a second direction, the punching hole group (110) is communicated with the guiding hole (120), the cutting and punching die (300) is arranged opposite to the punching hole group (110), the elastic support member (400) is arranged on the base (100) along the second direction adjacent to the punching hole group (110), the supporting end of the elastic support member (400) extends into the guiding hole (120) along the first direction, and the first direction is perpendicular to the second direction.

2. The bus bar punching and cutting device according to claim 1, characterized in that, It further includes an elastic pressing member (500). The elastic pressing member (500) is arranged on the cutting and punching die (300), and the elastic pressing member (500) is arranged opposite to the elastic support member (400).

3. The busbar punching and cutting device according to claim 1, wherein, The base (100) includes a support frame (130) and a pressing plate (140). The cutting and punching die (300) is provided with a guiding column (150). The pressing plate (140) is arranged on the support frame (130). The punching hole group (110) penetrates through the support frame (130) and the pressing plate (140). The support frame (130) is provided with a through hole. The guiding column (150) is in sliding fit with the through hole. The axis of the guiding hole (120) is parallel to the first direction.

4. The busbar punching and cutting device according to claim 3, characterized in that, The support frame (130) is provided with the guiding hole (120) along the second direction. The pressing plate (140) is provided with a groove along the second direction. The groove and the guiding hole (120) form a feeding channel.

5. The busbar punching and cutting device according to claim 3, characterized in that, The cutting and punching die (300) is hinged to the driving end of the driving member (200).

6. The bus bar punching and cutting device according to claim 1, wherein, The supporting end of the elastic support member (400) is a spherical protrusion.

7. The busbar punching and cutting device according to claim 1, characterized in that, The elastic support member (400) is a spring plunger.

8. The bus bar punching and cutting device according to claim 5, wherein The cutting and punching die (300) includes a cutting punch (310) and a punching column (320). The punching hole group (110) includes a cutting hole and a punching hole. The cutting punch (310) is arranged opposite to the cutting hole. The punching column (320) is arranged opposite to the punching hole.

9. The bus bar punching and cutting device according to claim 2, characterized in that, The elastic pressing member (500) includes a spring (510) and a pressing column (520). The cutting and punching die (300) is provided with a mounting hole. A part of the pressing column (520) extends into the mounting hole and is in sliding fit. The spring (510) is located in the mounting hole. The two ends of the spring (510) are elastically in contact with the inner wall of the mounting hole and a part of the pressing column (520) respectively.

10. The busbar punching and cutting device according to claim 2, characterized in that, In the first direction, the length of the pressing end of the elastic pressing member (500) is longer than the length of the cutting end of the cutting and punching die (300).

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