Punching and spot spraying mechanism for photovoltaic module terminal

Abstract

The utility model belongs to the technical field of photovoltaic module manufacturing, and relates to a photovoltaic module terminal punching and spot spraying mechanism, which comprises a base, and a material tray module, a punching module, a material taking and transferring module and a material cutting module which are sequentially arranged on the base, the punching module comprises a motor and a cutting die; the material taking and transferring module comprises a transferring and pressing air cylinder and a linear driving assembly. The material cutting module comprises a fixing plate, a cutter air cylinder arranged on the fixing plate and a cutter driven by the cutter air cylinder to conduct downward cutting. A terminal guide groove is formed from the outlet of the cutting die to the discharging side of the cutter; the transferring and pressing air cylinder downwards drives a pressing head for pressing a material belt in the terminal guide groove; a point spraying terminal module is further arranged between the punching module and the material taking and transferring module and comprises a point spraying head located above the terminal guiding groove and a waste discharging groove located below the terminal guiding groove. According to the utility model, waste materials can be blown off by using the point spray head between terminal punching and terminal blanking, so that the terminal is ensured to meet the structural requirement, and the quality problem of a photovoltaic module is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic assembly manufacturing, in particular to a photovoltaic assembly terminal punching and point spraying mechanism. Background Art

[0002] Photovoltaic modules (also called solar panels) are the core and most important part of solar power generation systems, including backplanes, frames, junction boxes, photovoltaic cells, welding strips, terminal welding rods, etc. The welding strips will connect photovoltaic cells into battery strings and then conduct current through terminals. Welding strips, photovoltaic cells, and terminal welding rods all rely on welding to form electrical connections.

[0003] Chinese patent CN209408668U discloses an automatic strip cutting machine, which can cut injection-molded products with terminals from the strip. However, in the terminal cutting of our photovoltaic modules, there are generally two steps: punching and blanking. Punching is used to cut the strip of material into the shape of the terminal, and blanking is to break the remaining part of the material strip to form the terminal, and the terminal is to be welded to the photovoltaic module. The hidden danger here is that the material strip is a conductive metal material with ductility. After the punching process, the waste may still be connected to the material strip. The terminal cannot be directly welded in this blanking state, otherwise it may cause a short circuit problem.

[0004] Therefore, it is necessary to improve the punching mechanism to solve the above problems. Summary of the invention

[0005] The main purpose of the utility model is to provide a photovoltaic module terminal punching and spraying mechanism, which can blow waste materials off the material strip after punching, so as to avoid waste materials being connected to the terminal and causing quality problems of the photovoltaic module.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: a photovoltaic module terminal punching and spraying mechanism, comprising a base and a material tray module, a punching module, a material picking and transferring module and a cutting module arranged in sequence on the base; the punching module comprises a motor and a knife die driven by the motor to punch and cut the material strip; the material picking and transferring module comprises a transfer and pressing cylinder and a linear drive component that drives the transfer and pressing cylinder to translate along the material strip conveying direction; the cutting module comprises a fixed plate, a cutter cylinder arranged on the fixed plate and a cutter driven by the cutter cylinder to cut downward; a terminal guide groove is arranged from the outlet of the cutter die to the material discharge side of the cutter, and the transfer and pressing cylinder drives a pressure head downward to press the material strip into the terminal guide groove; a spraying terminal module is also arranged between the punching module and the material picking and transferring module, and the spraying terminal module comprises a spray head located above the terminal guide groove and a waste discharge groove located below the terminal guide groove.

[0007] Specifically, the material tray module includes a material tray for delivering the material belt, a plurality of rollers for changing the direction of the material belt, and a plurality of straightening wheels arranged alternately up and down.

[0008] Specifically, the outlet side of the point nozzle is also provided with a camera for taking pictures of the upper surface of the material strip and a light source for illuminating the material strip.

[0009] Specifically, the dot spray terminal module also includes a moving module that drives the dot spray head to translate along the material belt conveying direction.

[0010] Specifically, the linear drive assembly includes a servo motor, a screw driven by the servo motor, a slider cooperating with the screw, and a slide rail guiding the slider to move along the conveying direction of the material belt, the slide rail is fixed on the base, and the transfer and pressing cylinder is fixed on the slider.

[0011] Specifically, the fixing plate is located on the moving path of the material belt, and the fixing plate is provided with a through hole for the material belt to pass through.

[0012] The beneficial effects of the technical solution of the utility model are:

[0013] After the punching module completes the punching of the material strip, some waste materials may be attached to the surface. At this time, when passing through the spray terminal module, they will be blown into the waste discharge trough by the airflow blown out from the spray nozzle. In this way, the terminals that are sent to the rear cutting module for cutting are the terminals that meet the requirements, ensuring that the structure of the terminals meets the requirements and avoiding waste materials attached to the terminals and causing quality problems of photovoltaic modules after welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A top view of a punching and spraying mechanism for photovoltaic module terminals in an embodiment;

[0015] Figure 2 A three-dimensional diagram of a punching and point spraying mechanism for photovoltaic module terminals in an embodiment;

[0016] Figure 3 for Figure 2 A partial enlarged view of position A in the middle.

[0017] The numbers in the figure represent:

[0018] 1- Photovoltaic module terminal punching and spraying mechanism,

[0019] 11- Base,

[0020] 12-tray module, 121-tray, 122-roller, 123-straightening wheel,

[0021] 13-punching module, 131-motor, 132-die cutter,

[0022] 14-point spray terminal module, 141-point spray head, 142-waste discharge tank, 143-mobile module, 144-camera, 145-light source,

[0023] 15- material transfer module, 151- material transfer and pressing cylinder, 152- linear drive assembly, 1521- servo motor, 1522- screw rod, 1523- slider, 1524- slide rail,

[0024] 16-cutting module, 161-fixed plate, 162-cutter cylinder

[0025] 17-terminal guide groove;

[0026] 2- Material strip. DETAILED DESCRIPTION

[0027] The utility model is further described in detail below in conjunction with specific embodiments.

[0028] Example:

[0029] like Figure 1 and Figure 2 As shown, a photovoltaic module terminal punching and spot spraying mechanism 1 of the utility model comprises a base and a material tray module 12, a punching module 13, a spot spraying terminal module 14, a material taking and transferring module 15 and a material cutting module 16 which are sequentially arranged on the base 11.

[0030] like Figure 2 As shown, the material tray module 12 includes a material tray 121 for delivering the material belt 2, a plurality of rollers 122 for changing the direction of the material belt 2, and a plurality of straightening wheels 123 arranged alternately up and down.

[0031] The tray module 12 is mainly responsible for leading out the material belt 2 rolled on the tray 121 , and releasing the stress through the straightening wheel 123 after the roller 122 changes direction, so that the material belt 2 is transported backward in a basically straight structure.

[0032] like Figure 2 As shown, the punching module 13 includes a motor 131 and a cutting die 132 driven by the motor 131 to punch the material strip 2 .

[0033] The material strip 2 is a strip material with a stable width, but the edge structure of the terminal structure is not flat and there is a hole in the middle, so it is necessary to use the cutting die 132 to perform edge trimming and hole cutting operations when the terminal is not completely cut off from the material strip 2, and the motor 131 is used to provide downward pressure.

[0034] like Figure 3As shown, the material picking and transferring module 15 includes a transfer and pressing cylinder 151 and a linear drive assembly 152 that drives the transfer and pressing cylinder 151 to translate along the conveying direction of the material belt; the linear drive assembly 152 includes a servo motor 1521, a screw rod 1522 driven by the servo motor 1521, a slider 1523 matched with the screw rod 1522, and a slide rail 1524 that guides the slider 1523 to move along the conveying direction of the material belt 2, the slide rail 1524 is fixed on the base 11, and the transfer and pressing cylinder 151 is fixed on the slider 1523. The transfer and pressing cylinder 151 drives a pressing head 1511 downward to press the material belt 2 into the terminal guide groove 17.

[0035] The main function of the material picking and transferring module 15 is to pull the head of the material strip 2 and then pull out the material strip 2. Specifically, the transfer and pressing cylinder 151 controls the pressing head 1511 to press the material strip 2 into the terminal guide groove 17, and then the servo motor 1521 drives the slider 1523 to move along the slide rail 1524 through the rotation of the screw rod 1522, and the transfer and pressing cylinder 151 will move along the conveying direction of the material strip 2, relying on the friction force of the pressing head 1511 on the upper surface of the material strip 2, so that the material strip 2 slides along the terminal guide groove 17.

[0036] like Figure 1 and Figure 2 As shown, the dot spray terminal module 14 includes a dot spray head 141 located above the terminal guide groove 17 and a waste discharge groove 142 located below the terminal guide groove 17; the outlet side of the dot spray head 141 is also provided with a camera 144 for taking pictures of the upper surface of the material strip 2 and a light source 145 for illuminating the material strip 2; the dot spray terminal module 14 also includes a moving module 143 for driving the dot spray head 141 to translate along the material strip conveying direction.

[0037] After the material strip 2 is punched, some waste may be attached to the surface. At this time, when passing through the spot spray terminal module 14, it will be blown into the waste discharge slot 142 by the airflow blown out from the spot spray head 141. In this way, the terminals that are sent to the rear and cut off are the terminals that meet the needs, avoiding waste being attached to the terminals and causing quality problems of photovoltaic modules after welding. With the assistance of the light source 145, the camera 144 can perform visual inspection of the material strip 2 leaving the spot spray head 141 to ensure that the surface of the material strip 2 has been blown clean; if the image taken by the camera 144 shows that the material strip 2 has not been blown clean, the mobile module 143 can also move the spot spray head 141 back and forth above the material strip 2 while keeping the material strip 2 stationary until the waste is blown off, ensuring that the purpose of spot spraying is achieved.

[0038] like Figure 3As shown, the cutting module 16 includes a fixed plate 161, a cutter cylinder 162 arranged on the fixed plate 161, and a cutter (not exposed) driven by the cutter cylinder 162 to cut downward; a terminal guide groove 17 is provided from the outlet of the cutting die 132 to the discharge side of the cutter; the fixed plate 161 is located on the moving path of the material strip 2, and a through hole 161 is provided on the fixed plate 161 for the material strip 2 to pass through.

[0039] The material strip 2 that has been spray-cleaned needs to be cut into independent terminals by a cutter. The cutter cylinder 162 drives the cutter to press down, and the disconnected terminals will fall to the terminal guide groove 17 on the side of the cutter discharge direction. The fixing plate 161 serves as both a fixing base for the cutter cylinder 162 and a limiting component for conveying the material strip 2. When cutting, the lower wall of the through hole 161 supports the lower surface of the material strip 2, thereby cooperating with the cutter to generate shear force.

[0040] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A photovoltaic module terminal punching and spraying mechanism, characterized in that: It includes a base and a material tray module, a punching module, a material picking and transferring module and a cutting module which are arranged in sequence on the base; the punching module includes a motor and a knife die driven by the motor to punch and cut the material strip; the material picking and transferring module includes a transferring and pressing cylinder and a linear driving component which drives the transferring and pressing cylinder to translate along the material strip conveying direction; the cutting module includes a fixed plate, a cutter cylinder arranged on the fixed plate and a cutter driven by the cutter cylinder to cut downwards; a terminal guide groove is arranged from the outlet of the knife die to the material discharging side of the cutter, and the transferring and pressing cylinder drives a pressure head which presses the material strip into the terminal guide groove downward; a dot spray terminal module is also arranged between the punching module and the material picking and transferring module, and the dot spray terminal module includes a dot spray head located above the terminal guide groove and a waste discharge groove located below the terminal guide groove.

2. The photovoltaic module terminal punching and spraying mechanism according to claim 1, characterized in that: The material tray module comprises a material tray for delivering a material belt, a plurality of rollers for changing the direction of the material belt, and a plurality of straightening wheels arranged in an upper and lower staggered manner.

3. The photovoltaic module terminal punching and spraying mechanism according to claim 1, characterized in that: The outlet side of the dot nozzle is also provided with a camera for taking pictures of the upper surface of the material strip and a light source for illuminating the material strip.

4. The photovoltaic module terminal punching and spraying mechanism according to claim 1, characterized in that: The dot spray terminal module also includes a moving module for driving the dot spray head to translate along the material belt conveying direction.

5. The photovoltaic module terminal punching and spraying mechanism according to claim 1, characterized in that: The linear drive assembly includes a servo motor, a lead screw driven by the servo motor, a slider matched with the lead screw, and a slide rail guiding the slider to move along the conveying direction of the material belt. The slide rail is fixed on the base, and the transfer and pressing cylinder is fixed on the slider.

6. The photovoltaic module terminal punching and spraying mechanism according to claim 1, characterized in that: The fixing plate is located on the moving path of the material belt, and a through hole for the material belt to pass through is provided on the fixing plate.

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