Feeding device of photovoltaic stitch welding machine

Abstract

The utility model provides a photovoltaic stitch welding machine feeding device which comprises a plate feeding belt conveying in the longitudinal direction, the plate feeding belt is composed of a plurality of narrow plate supporting belts arranged at intervals, and inter-belt gaps are formed among the narrow plate supporting belts. The feeding device of the photovoltaic stitch welding machine comprises a base, an advancing and retreating platform installed on the base and a plurality of supporting plate rollers which are installed on the advancing and retreating platform and can ascend and descend synchronously, the advancing and retreating platform is arranged at the input end of the plate feeding belt, and the supporting plate rollers right face the multiple inter-belt neutral positions. The advancing and retreating platform advances and retreats between a plate feeding station and a plate discharging station, and when the advancing and retreating platform is located at the plate feeding station, the plate supporting roller is pulled away from the inter-belt neutral position and used for receiving a glass plate assembly; and when the conveying device is located at the plate unloading station, the plate supporting rollers intervene in the inter-belt neutral position, and the glass plate assembly is placed on the plurality of narrow plate supporting belts through synchronous descending of the plurality of plate supporting rollers.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic module production, and specifically, to a feeding device for a photovoltaic string welder. Background Art

[0002] A photovoltaic module, also known as a solar panel, can convert solar energy into electrical energy. It is composed of components such as photovoltaic glass, EVA film, solar cells, EVA film, backplane, frame, and junction box, which are laid in sequence from top to bottom. During production and processing, first, an EVA film is laid on the photovoltaic glass, and then, the solar cells are successively subjected to laser scribing, string welding into a battery string, the battery string is typeset on the EVA film of the photovoltaic glass, and the battery string is welded by a string welder, etc. Among them, between the typesetting and string welding steps, it is necessary to convey the typeset components to the upper plate belt of the photovoltaic string welder.

[0003] The existing conveying method is to set a turning belt at the input end of the upper plate belt (assuming the upper plate belt conveys longitudinally). The turning belt includes a transverse conveyor belt assembly and a longitudinally conveyor belt assembly that can be lifted. The assembly is first sent into the transverse conveyor belt assembly by the upstream belt. After arriving, the longitudinally conveyor belt assembly rises to lift the assembly and send the assembly into the upper plate belt. However, after typesetting, the battery string is placed loosely on the photovoltaic glass. The traditional conveying method has a long path and many actions, and the position of the battery string is likely to change. Once the change exceeds the allowable error, the automatic deviation correction function of the photovoltaic string welder will fail, resulting in the inability to smoothly carry out production.

[0004] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the Invention

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art, and thus provide a feeding device for a photovoltaic string welder with a short conveying path, no redundant actions, the position of the battery string is not easily changed during the conveying process, and the production is more smooth.

[0006] To achieve the above object, the technical solution adopted by the present utility model is as follows: A feeding device for a photovoltaic laminator, the photovoltaic laminator includes an upper plate belt that conveys longitudinally, the upper plate belt is composed of a plurality of spaced-apart pallet narrow belts, and an inter-band gap is formed between the plurality of pallet narrow belts. The feeding device for the photovoltaic laminator includes a base, a forward and backward platform installed on the base, and a plurality of synchronously liftable pallet rollers installed on the forward and backward platform. The forward and backward platform is arranged at the input end of the upper plate belt, and the plurality of pallet rollers are arranged facing the plurality of inter-band gaps; the forward and backward platform moves forward and backward between the upper plate station and the plate unloading station. When in the upper plate station, the pallet rollers are withdrawn from the inter-band gaps for receiving the glass plate assembly; when in the plate unloading station, the pallet rollers intervene in the inter-band gaps, and through the synchronous descent of the plurality of pallet rollers, the glass plate assembly is placed on the plurality of pallet narrow belts.

[0007] Based on the above, it further includes a swing cylinder and a driving cross plate. Both ends of each pallet roller are respectively hinged to a support plate, the bottom ends of each support plate are hinged to the forward and backward platform and are parallel to each other, the driving cross plate is hinged to one end of each pallet roller away from the upper plate belt, and both ends of the swing cylinder are respectively hinged to the forward and backward platform and the driving cross plate; through the telescopic movement of the swing cylinder, the driving cross plate is driven to swing up and down, driving the plurality of pallet rollers to lift synchronously.

[0008] Based on the above, the top of the driving cross plate is set higher than the pallet rollers to push the glass plate assembly forward.

[0009] Based on the above, it further includes a limiting plate located on the output side of the upper plate station to limit the lateral position of the glass plate assembly on the plurality of pallet rollers.

[0010] Based on the above, it further includes a forward and backward cylinder. A longitudinal slide rail is provided at the top of the base, the forward and backward platform is slidably arranged on the longitudinal slide rail, and both ends of the forward and backward cylinder are respectively connected to the base and the bottom of the forward and backward platform; through the telescopic movement of the forward and backward cylinder, the forward and backward platform is driven to move forward and backward.

[0011] The present utility model has substantial characteristics and progress compared with the prior art. Specifically, the present utility model has the following advantages:

[0012] (1) A number of the pallet rollers are used to support the glass plate assembly. When arranging the battery strings, the photovoltaic glass laid with EVA film can be first conveyed onto the pallet rollers, and the arrangement can be directly carried out on the pallet rollers, shortening the conveying path. When loading the plate, by the forward and backward movement of the forward and backward platform and the lifting of the pallet rollers, the glass plate assembly is placed on the narrow pallet belt. During the entire turning process, the glass plate assembly itself does not move, without any redundant operations, thus maintaining the stability of the position of the battery strings.

[0013] (2) The driving cross plate, the supporting plate and the forward and backward platform form a parallelogram with end points hinged. By the telescopic movement of the swing oil cylinder, the parallelogram is driven to deform, causing a number of the pallet rollers to swing slightly up and down, making the operation of placing the glass plate assembly gentler.

[0014] (3) The top of the driving cross plate is set higher than the pallet rollers, facilitating the pushing of the glass plate assembly onto the upper plate belt. The setting of the limiting plate facilitates the control of the lateral position of the glass plate assembly, ensuring the accuracy of the plate loading. Description of the Drawings

[0015] Figure 1 is a schematic structural view of the loading device of the photovoltaic stack welding machine in the system of the present utility model.

[0016] Figure 2 is a top view of the loading device of the photovoltaic stack welding machine of the present utility model.

[0017] Figure 3 is a side view of the loading device of the photovoltaic stack welding machine of the present utility model.

[0018] In the figure: 1. Photovoltaic stack welding machine; 2. Narrow pallet belt; 3. Gap between belts; 4. Base; 5. Forward and backward platform; 6. Pallet rollers; 7. Upstream belt; 8. Limiting plate; 9. Swing cylinder; 10. Driving cross plate; 11. Supporting plate; 12. Forward and backward cylinder; 13. Longitudinal slide rail. Detailed Embodiments

[0019] The technical solutions of the present utility model will be further described in detail below through specific embodiments.

[0020] As Figures 1-3As shown, a photovoltaic stitch welding machine feeding device, in this embodiment, the photovoltaic stitch welding machine 1 adopts a photovoltaic stitch welding machine commonly seen on the market, including an upper plate belt conveyed in the longitudinal direction, the upper plate belt is composed of five spaced-apart narrow plate belts 2, and a belt gap 3 is formed between the five narrow plate belts 2. The photovoltaic stitch welding machine feeding device includes a base 4, an advance and retreat platform 5 installed on the base 4, and four synchronously lifting and lowering plate rollers 6 installed on the advance and retreat platform 5, the advance and retreat platform 5 is arranged at the input end of the upper plate belt, and the four plate rollers 6 are arranged opposite to the four belt gaps 3.

[0021] The advance and retreat platform 5 advances and retreats between the loading station and the unloading station. When in the loading station, the plate support roller 6 is pulled out of the gap 3 between the belts, and the upstream belt 7 is docked on the lateral input side for receiving the glass plate assembly. A limit plate 8 is provided on the lateral output side for limiting the lateral position of the glass plate assembly on the plate support roller 6 to ensure the loading accuracy. The limit plate 8 can be installed on an independent fixed frame; when in the unloading station, the plate support roller 6 intervenes in the gap 3 between the belts, and the glass plate assembly is placed on the five narrow plate belts 2 through the synchronous descent of the four plate support rollers 6.

[0022] In order to be able to place the glass plate assembly on the narrow pallet belt 2 more gently, the loading device of the photovoltaic stitch welding machine also includes a swing cylinder 9 and a driving cross plate 10, and each of the two ends of the pallet roller 6 is hinged with a support plate 11, and the bottom end of each support plate 11 is hinged on the advance and retreat platform 5 and parallel to each other, and the driving cross plate 10 is hinged to the end of each pallet roller 6 away from the upper plate belt, and the two ends of the swing cylinder 9 are respectively hinged on the advance and retreat platform 5 and the driving cross plate 10; in this way, the driving cross plate 10, the support plate 11 and the advance and retreat platform 5 form a parallelogram with hinged end points, and the parallelogram is deformed by the extension and retraction of the swing cylinder 9, so that the pallet roller 6 swings up and down with a small amplitude, and the movement is gentler when placing the glass plate assembly.

[0023] In addition, the top of the driving transverse plate 10 is arranged higher than the supporting roller 6 so as to push the glass plate assembly forward and avoid the movement of the supporting roller 6.

[0024] The advance and retreat platform 5 is driven by an advance and retreat cylinder 12. A longitudinal slide rail 13 is provided on the top of the base 4. The advance and retreat platform 5 is slidably arranged on the longitudinal slide rail 13. The two ends of the advance and retreat cylinder 12 are respectively connected to the base 4 and the bottom of the advance and retreat platform 5. The advance and retreat platform 5 is driven to advance and retreat by the extension and retraction of the advance and retreat cylinder 5.

[0025] Working principle:

[0026] The advancing and retracting air cylinder 12 first pulls the advancing and retracting platform 5 to the upper plate station. First, the photovoltaic glass laid with the EVA film is conveyed onto the pallet roller 6. The limiting plate 8 limits the lateral position, and the battery strings are typeset directly on the pallet roller 6. Then, the advancing and retracting air cylinder 12 pushes the advancing and retracting platform 5 to the unloading station. The pallet roller 6 intervenes in the gap 3 between the belts. The swinging air cylinder 9 pulls the driving cross plate 10 to swing downward, driving the pallet roller 6 to swing downward, and placing the glass plate assembly on the five pallet narrow belts 2. Finally, the advancing and retracting air cylinder 12 pulls the advancing and retracting platform 5 back to the upper plate station to prepare for the next loading.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the specific implementation manners of the present invention or perform equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A feeding device for a photovoltaic stitch welding machine, the photovoltaic stitch welding machine comprising an upper plate belt conveyed in a longitudinal direction, the upper plate belt consisting of a plurality of spaced-apart narrow belts of pallets, a plurality of the narrow belts of pallets forming inter-belt gaps, characterized in that: The loading device of the photovoltaic stitch welding machine includes a base, an advance and retreat platform installed on the base, and a plurality of synchronously rising and falling support rollers installed on the advance and retreat platform. The advance and retreat platform is arranged at the input end of the upper plate belt, and the plurality of support rollers are arranged opposite to the plurality of inter-belt gaps; the advance and retreat platform advances and retreats between the upper plate loading station and the lower plate unloading station. When in the upper plate loading station, the support rollers are pulled out of the inter-belt gaps to receive the glass plate assembly; when in the lower plate unloading station, the support rollers intervene in the inter-belt gaps, and the glass plate assembly is placed on the plurality of narrow support belts through the synchronous descent of the plurality of support rollers.

2. The photovoltaic stack welding machine feeding device according to claim 1, characterized in that: It also includes a swinging cylinder and a driving cross plate. The two ends of each of the pallet rollers are respectively hinged with support plates. The bottom ends of the support plates are hinged on the advance and retreat platform and are parallel to each other. The driving cross plate is hinged to one end of each of the pallet rollers away from the upper plate belt. The two ends of the swinging cylinder are respectively hinged on the advance and retreat platform and the driving cross plate. The driving cross plate is driven to swing up and down by the extension and retraction of the swinging cylinder, thereby driving a plurality of the pallet rollers to rise and fall synchronously.

3. The photovoltaic stack welding machine feeding device according to claim 2 is characterized in that: The top of the driving transverse plate is arranged higher than the supporting plate roller so as to push the glass plate assembly forward.

4. The photovoltaic stitch welding machine feeding device according to any one of claims 1 to 3, characterized in that: It also includes a limiting plate located at the output side of the upper plate station so as to limit the lateral position of the glass plate assembly on the plurality of supporting plate rollers.

5. The photovoltaic stack welding machine feeding device according to claim 4, characterized in that: It also includes an advance and retreat cylinder, a longitudinal slide rail is arranged on the top of the base, the advance and retreat platform is slidably arranged on the longitudinal slide rail, and the two ends of the advance and retreat cylinder are respectively connected to the base and the bottom of the advance and retreat platform; The advance and retreat platform is driven to advance and retreat by the extension and retraction of the advance and retreat cylinder.

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