Tin plating device for photovoltaic welding strip production

Abstract

The invention provides a tin plating device for photovoltaic welding strip production, and relates to the field of photovoltaic welding strip production, the tin plating device comprises a welding strip tin plating machine body and a protective cover plate, the protective cover plate is inserted in the upper surface of the welding strip tin plating machine body, and the upper end of the welding strip tin plating machine body is connected with an excess material removing frame through a fixed side plate; liquid rollers are distributed in the excess material discharging frame in a bilateral symmetry mode, the side ends of the liquid rollers are in shaft connection with a fixing frame, a liquid squeezing barrel frame is fixed to the lower end face of the fixing frame and is in shaft connection with a rotating column through a motor, the surface of the rotating column is sleeved with a sponge barrel, and the upper barrel face of the sponge barrel is attached to the lower roller face of the liquid rollers. And a liquid discharging filter screen is arranged on the cylinder surface of the lower end of the liquid squeezing cylinder frame. The problem that in the prior art, when a photovoltaic welding strip soaked in tin liquor is moved out of a water tank, the strip face is prone to carrying the tin liquor to drop into the external environment, and harm is generated is solved.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic welding strip production, and in particular to a tin coating device for photovoltaic welding strip production. Background Art

[0002] Photovoltaic welding ribbon is also called tinned copper ribbon or tin-coated copper ribbon, which is divided into busbar and interconnection strip, and is used for connecting photovoltaic module cells. During the tinning process of photovoltaic welding ribbon, tin needs to be evenly coated on both sides of the copper ribbon. After searching, the prior art (Announcement No.: CN202321931838.3) is a tinning device for photovoltaic welding ribbon processing. The article records that "the tinning operation of the photovoltaic welding ribbon is facilitated by the setting of the box and the water tank. When coating the welding ribbon, the tin liquid is poured into the water tank, and then the welding ribbon is immersed in the water tank so that the tin liquid is coated on the surface of the welding ribbon, which greatly improves the tin coating of the welding ribbon and further improves the work efficiency. At the same time, the device has a simple structure and is easy to operate." However, in the prior art, when the photovoltaic welding ribbon is removed from the water tank after being immersed in the tin liquid, the belt surface is prone to carry the tin liquid and drip into the external environment, causing harm. Summary of the invention

[0003] In order to overcome the defects of the prior art, a tin coating device for photovoltaic solder strip production is provided to solve the problem that the photovoltaic solder strip surface is easily carried with tin liquid and dripped into the external environment when it is moved out of the water tank after being immersed in tin liquid in the prior art, causing harm.

[0004] In order to achieve the above-mentioned purpose, a tinning device for producing photovoltaic solder strips is provided, comprising: a solder strip tinning machine body and a protective cover plate, wherein the upper surface of the solder strip tinning machine body is plugged with a protective cover plate, The upper end of the solder strip tinning machine body is connected to a residual material exclusion frame through a fixed side plate, and liquid rollers are symmetrically distributed in the residual material exclusion frame. The side end shafts of the liquid application rollers are connected to a fixed frame, and a liquid extrusion cylinder frame is fixed to the lower end surface of the fixed frame. The liquid extrusion cylinder frame is connected to a rotating column through a motor shaft, and a sponge cylinder is sleeved on the surface of the rotating column. The upper cylinder surface of the sponge cylinder is in contact with the lower roller surface of the liquid application roller, and a liquid drainage filter is arranged on the lower end cylinder surface of the liquid extrusion cylinder frame.

[0005] Furthermore, a fixed side plate is welded at the rear edge of the upper surface of the solder strip tinning machine body, a pair of feeding rollers are installed on the front end surface of the fixed side plate, and tin liquid is introduced into the inner cavity of the solder strip tinning machine body.

[0006] Furthermore, a heater is fixed inside the lower end of the solder strip tinning body, and a slider is fixed on the lower surface of the protective cover; and the slider is slidably connected in the slide groove on the upper surface of the solder strip tinning body.

[0007] Furthermore, two groups of through grooves are provided on the surface of the protective cover plate; and the through grooves are correspondingly located below the feeding roller pair and the residual material removal frame.

[0008] Furthermore, a material guide roller is installed on the upper end of the residual material exclusion frame surface, and the side end of the fixed frame is connected to the side frame wall of the residual material exclusion frame through an adjusting stud.

[0009] Furthermore, a motor is embedded and fixed at the rear end of the squeezing cylinder frame, and a sealing end cover is screwed at the front end of the squeezing cylinder frame; and the rear side of the sealing end cover is in contact with the sponge cylinder through a sealing pad.

[0010] Furthermore, the liquid application roller, the fixed frame, the sponge cylinder, the liquid squeezing cylinder frame, the motor and the rotating column constitute a residual liquid recovery mechanism of the solder strip tinning machine body.

[0011] The beneficial effect of the present invention is that the tin coating device for the production of photovoltaic solder strips of the present invention utilizes two groups of liquid application rollers in a residual material removal frame to roll in contact with the photovoltaic solder strips after tin coating, so that excess tin liquid on the surface of the photovoltaic solder strip is contaminated and attached to the roller surface of the liquid application roller, and the rotating sponge cylinder contacts the lower roller surface of the liquid application roller to absorb and remove the excess tin liquid contaminated and attached to the roller surface, and the absorbed tin liquid is squeezed out through the liquid extrusion cylinder frame and discharged back into the tin coating body, so as to facilitate the efficient removal and recovery of excess tin liquid on the photovoltaic solder strip after tin coating, and at the same time ensure that the tin liquid on the surface of the photovoltaic solder strip is evenly distributed and flat, avoid excess tin liquid dripping into the external environment, and improve the safety of the solder strip tin coating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view structural schematic diagram of a tin coating device for producing photovoltaic solder strips according to an embodiment of the present invention.

[0013] Figure 2 It is a schematic diagram of the front cross-sectional structure of a tin coating device for producing photovoltaic solder strips according to an embodiment of the present invention.

[0014] Figure 3 It is a schematic diagram of the front cross-sectional structure of the residual material removal frame and the liquid application roller according to an embodiment of the present invention.

[0015] Figure 4 It is a schematic diagram of the side cross-sectional connection structure of the liquid applicator roller and the sponge tube according to an embodiment of the present invention.

[0016] In the figure: 1. Solder strip tinning machine body; 11. Feed roller pair; 12. Fixed side plate; 13. Heater; 2. Protective cover plate; 21. Slider; 22. Through groove; 3. Residual material removal frame; 31. Material guide roller; 4. Liquid roller; 41. Fixed frame; 42. Adjusting stud; 5. Sponge cylinder; 51. Liquid squeezing cylinder frame; 52. Liquid discharge filter; 53. Rotating column; 54. Motor; 55. Sealing end cover. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Reference Figures 1 to 4 As shown, the present invention provides a tinning device for producing photovoltaic solder strips, comprising: a solder strip tinning machine body 1 and a protective cover plate 2, wherein the protective cover plate 2 is plugged into the upper surface of the solder strip tinning machine body 1. The upper end of the solder strip tinning machine body 1 is connected to a residual material removal frame 3 through a fixed side plate 12, and liquid rollers 4 are symmetrically distributed in the residual material removal frame 3. The side ends of the liquid rollers 4 are axially connected to a fixed frame 41, and a liquid squeezing cylinder frame 51 is fixed to the lower end surface of the fixed frame 41. The liquid squeezing cylinder frame 51 is connected to a rotating column 53 through a motor 54 shaft, and a sponge cylinder 5 is sleeved on the surface of the rotating column 53. The upper cylinder surface of the sponge cylinder 5 is in contact with the lower roller surface of the liquid roller 4, and a liquid drainage filter 52 is provided on the lower end cylinder surface of the liquid squeezing cylinder frame 51.

[0019] When processing the photovoltaic welding strip, the un-tinned photovoltaic welding strip is first immersed into the tin liquid in the welding strip tin coating machine body 1 through the feeding roller pair 11, and the photovoltaic welding strip with the tin liquid on the surface passes through the welding strip tin coating machine body 1 and then enters the residual material removal frame 3, and contacts with the liquid rollers 4 on the left and right sides, so that the liquid rollers 4 rotate with the movement of the photovoltaic welding strip, and the contact roller surface of the liquid roller 4 carries away the excess tin liquid on the surface of the photovoltaic welding strip, and the roller surface stained with the tin liquid rotates to the lower end and fits with the sponge tube 5, so that the sponge tube 5 absorbs the tin liquid on the roller surface. At this time, the motor 54 drives the sponge tube 5 to rotate, and the adsorbed tin liquid is rotated and squeezed to the drainage filter 52, and the tin liquid is squeezed back into the welding strip tin coating machine body 1, and the tin coating processing of the photovoltaic welding strip is completed.

[0020] In this embodiment, a fixed side plate 12 is welded at the rear edge of the upper surface of the solder strip tinning machine body 1, and a feeding roller pair 11 is installed on the front end surface of the fixed side plate 12. Tin liquid is introduced into the inner cavity of the solder strip tinning machine body 1. A heater 13 is fixed inside the lower end of the solder strip tinning machine body 1, and a slider 21 is fixed on the lower surface of the protective cover plate 2; and the slider 21 is slidably connected in the slide groove on the upper surface of the solder strip tinning machine body 1. Two sets of through grooves 22 are opened on the surface of the protective cover plate 2; and the through grooves 22 are correspondingly located below the feeding roller pair 11 and the residual material removal frame 3.

[0021] As a preferred embodiment, the feeding roller pair 11 facilitates conveying the photovoltaic solder ribbon to the tin liquid in the solder ribbon tinning machine body 1, so that the photovoltaic solder ribbon is immersed in the tin liquid, and then passes through the right through groove 22 of the protective cover plate 2 and enters the residual material removal frame 3. The protective cover plate 2 facilitates preventing the tin liquid in the solder ribbon tinning machine body 1 from being exposed to the environment, thereby reducing pollution.

[0022] In this embodiment, a material guide roller 31 is installed on the upper end of the frame surface of the residual material removal frame 3, and the side end of the fixed frame 41 is connected to the side frame wall of the residual material removal frame 3 through the adjusting stud 42.

[0023] As a preferred embodiment, the guide roller 31 facilitates guiding the photovoltaic welding ribbon vertically penetrating the excess material removal frame 3 to the next processing link. The adjustment stud 42 is rotated to adjust the spacing between the two sets of liquid rollers 4, so that the roller surface of the liquid roller 4 rolls in contact with the photovoltaic welding ribbon, and removes excess tin liquid on the surface of the photovoltaic welding ribbon.

[0024] In this embodiment, a motor 54 is embedded and fixed at the rear end of the squeezing cylinder frame 51, and a sealing end cover 55 is screwed to the front end of the squeezing cylinder frame 51; and the rear side of the sealing end cover 55 is in contact with the sponge cylinder 5 through a sealing pad.

[0025] As a preferred embodiment, the motor 54 drives the sponge tube 5 sleeved on the surface of the rotating column 53 to rotate, and the side of the sponge tube 5 that absorbs the tin liquid on the roller surface is rotated and squeezed to the drainage filter 52, and the absorbed tin liquid is squeezed and discharged to the inclined surface of the residual material removal frame 3, so that the discharged tin liquid flows back to the solder strip tin coating machine body 1 along the inclined surface.

[0026] In this embodiment, the liquid applicator roller 4 , the fixed frame 41 , the sponge cylinder 5 , the liquid squeezing cylinder frame 51 , the motor 54 and the rotating column 53 constitute a residual liquid recovery mechanism of the solder strip tinning machine body 1 .

[0027] As a preferred embodiment, the residual liquid recovery mechanism of the solder strip tinning machine 1 is convenient for efficiently removing and recovering excess tin liquid on the photovoltaic solder strip after tinning, while ensuring that the tin liquid on the surface of the photovoltaic solder strip is evenly distributed and flat, avoiding excess tin liquid from dripping into the external environment, and improving the safety of the solder strip tinning device.

[0028] The tin coating device for the production of photovoltaic solder strips of the present invention can effectively solve the problem in the prior art that the photovoltaic solder strips are easily carried with tin liquid and dripped into the external environment when the strips are moved out of the water tank after being soaked in tin liquid, causing harm. It is convenient for efficiently removing and recovering excess tin liquid on the photovoltaic solder strips after tin coating, and at the same time ensures that the tin liquid on the surface of the photovoltaic solder strip is evenly distributed and flat, avoiding excess tin liquid from dripping into the external environment, thereby improving the safety of the solder strip tin coating device, and is suitable for the tin coating device for the production of photovoltaic solder strips.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tinning device for producing photovoltaic welding strips, comprising: A soldering strip tinning machine body (1) and a protective cover plate (2), wherein the protective cover plate (2) is plugged into the upper surface of the soldering strip tinning machine body (1), and is characterized in that: The upper end of the solder strip tinning machine body (1) is connected to a residual material removal frame (3) via a fixed side plate (12), and liquid rollers (4) are symmetrically distributed in the residual material removal frame (3). The side ends of the liquid rollers (4) are axially connected to a fixed frame (41), and a liquid squeezing cylinder frame (51) is fixed to the lower end surface of the fixed frame (41). The liquid squeezing cylinder frame (51) is axially connected to a rotating column (53) via a motor (54), and a sponge cylinder (5) is sleeved on the surface of the rotating column (53). The upper cylinder surface of the sponge cylinder (5) is in contact with the lower roller surface of the liquid squeezing roller (4), and a liquid drainage filter (52) is provided on the lower cylinder surface of the liquid squeezing cylinder frame (51).

2. A tin coating device for photovoltaic ribbon production according to claim 1, characterized in that: A fixed side plate (12) is welded at the rear edge of the upper surface of the solder strip tinning machine body (1), a pair of feeding rollers (11) is installed on the front end surface of the fixed side plate (12), and tin liquid is introduced into the inner cavity of the solder strip tinning machine body (1).

3. A tin coating device for producing photovoltaic welding strips according to claim 1, characterized in that: A heater (13) is fixed inside the lower end of the solder strip tinning machine body (1), and a slider (21) is fixed on the lower surface of the protective cover plate (2); and the slider (21) is slidably connected in a slide groove on the upper surface of the solder strip tinning machine body (1).

4. A tin coating device for photovoltaic ribbon production according to claim 1, characterized in that: The surface of the protective cover plate (2) is provided with two groups of through grooves (22); and the through grooves (22) are correspondingly located below the feeding roller pair (11) and the residual material removal frame (3).

5. The tin coating device for photovoltaic ribbon production according to claim 1, characterized in that: A material guide roller (31) is installed on the upper end of the frame surface of the residual material removal frame (3), and the side end of the fixed frame (41) is connected to the side frame wall of the residual material removal frame (3) via an adjusting stud (42).

6. A tin coating device for photovoltaic ribbon production according to claim 1, characterized in that: A motor (54) is embedded and fixed at the rear end of the squeezing cylinder frame (51), and a sealing end cover (55) is screwed at the front end of the squeezing cylinder frame (51); and the rear side of the sealing end cover (55) is in contact with the sponge cylinder (5) via a sealing pad.

7. A tin coating device for photovoltaic ribbon production according to claim 1, characterized in that: The liquid application roller (4), the fixed frame (41), the sponge cylinder (5), the liquid squeezing cylinder frame (51), the motor (54) and the rotating column (53) constitute a residual liquid recovery mechanism of the solder strip tinning machine body (1).

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