Photovoltaic module EVA strip feeding spot ironing machine

Abstract

The utility model relates to a photovoltaic module EVA strip feeding spot ironing machine which comprises a conveying unit, a feeding unit and a material changing trolley, the conveying unit conveys a photovoltaic module in the X direction, the feeding unit is arranged on the two sides of the conveying unit in the Y direction, the material changing trolley is arranged on the side of the feeding unit in the X direction, and the X direction and the Y direction are both located in the horizontal plane and are perpendicular to each other; the feeding unit comprises a base, a mechanical arm arranged on the upper portion of the base and a gripper assembly arranged at the free end of the mechanical arm, and a plurality of first magnetic attraction mechanisms are arranged on the X-direction side of the base; the material changing trolley comprises a stock bin assembly located on the upper portion, four double-track wheels located at the four corners of the lower portion and walking in the Y direction and a second magnetic attraction mechanism located on the side of the lower portion, and the second magnetic attraction mechanism and the first magnetic attraction mechanism are attracted mutually. According to the equipment, the position between the reloading trolley and the base is fixed through adsorption of the second magnetic attraction mechanism and the first magnetic attraction mechanism, point position debugging or workpiece coordinate calibration is not needed, reloading and reloading can be rapidly conducted, and the working efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic components, in particular to a photovoltaic component EVA strip feeding and hot spot machine. Background Art

[0002] EVA materials are widely used in various fields due to their softness, shock resistance, anti-slip and pressure resistance, such as soles, interior materials, packaging films, gaskets, medical equipment, hot melt adhesives, cable insulation layers, etc. EVA materials are also pasted on photovoltaic modules to protect them.

[0003] Chinese patent CN 112390048A discloses an EVA cutting and laying machine, which can paste the EVA film on the glass in its entirety. This method has high requirements on the flatness of the EVA film, and it cannot have wrinkles, which is not as simple as directly attaching strip materials. However, the loading of the EVA head-end loading component is complicated, and it takes a long time to change the material.

[0004] Therefore it is necessary to design a new device to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a photovoltaic component EVA strip feeding and hot-pointing machine, which can realize the rapid feeding of EVA strips and has high working efficiency.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions: a photovoltaic module EVA long strip loading and hot stamping machine, including a conveying unit, a loading unit and a material changing trolley, the conveying unit conveys the photovoltaic module along the X direction, the loading unit is arranged on both sides of the Y direction of the conveying unit, and the material changing trolley is arranged on the X direction side of the loading unit, and the X direction and the Y direction are both located in the horizontal plane and are perpendicular to each other; the loading unit includes a base, a mechanical arm arranged on the upper part of the base, and a gripper assembly arranged at the free end of the mechanical arm, and a plurality of first magnetic suction mechanisms are arranged on the X direction side of the base; the material changing trolley includes a silo assembly located at the upper part, four double-track wheels located at the four corners of the lower part and moving along the Y direction, and a second magnetic suction mechanism located on the side of the lower part, and the second magnetic suction mechanism and the first magnetic suction mechanism are mutually adsorbed.

[0007] Specifically, the conveying unit includes a synchronous conveyor belt with a conveying direction along the X direction, a plurality of X-direction alignment mechanisms arranged on both sides of the synchronous conveyor belt in the X direction, and a plurality of Y-direction centering mechanisms arranged on both sides of the synchronous conveyor belt in the Y direction.

[0008] Furthermore, a plurality of auxiliary rollers with the conveying direction along the X direction are provided on both sides of the synchronous conveyor belt in the Y direction.

[0009] Specifically, a loading unit is provided on each of the two sides of the conveying unit in the Y direction, and a material changing trolley is provided on each of the two sides of the conveying unit in the X direction.

[0010] Furthermore, the gripper assembly includes a guide bracket connected to the robotic arm, a plurality of suction nozzles arranged side by side along the guide bracket, and a vacuum generator arranged on the guide bracket, wherein the vacuum generator provides suction for all suction nozzles, and the suction surfaces of all suction nozzles are flush and located below the guide bracket.

[0011] Furthermore, a pair of welding head assemblies are provided on both sides of the gripper assembly, and the welding head assembly includes an L-shaped connecting block installed at the lower end of the guide bracket, a lifting guide rail installed on the outside of the L-shaped connecting block, a pressure head slider sliding along the Z direction on the lifting guide rail, and a hot-spot copper block fixed on the outside of the pressure head slider, and a welding head temperature controller for controlling the heating temperature of the hot-spot copper block is provided on the guide bracket, and the Z direction is the vertical direction.

[0012] Furthermore, the welding head assembly also includes a spring pressure block fixedly arranged above the lifting guide rail, the upper part of the pressure head slider is provided with a positioning column passing upward through the spring pressure block, the spring pressure block acts downward on the upper part of the pressure head slider, and a stopper is fixed below the lifting guide rail to prevent the pressure head slider from detaching from the lifting guide rail.

[0013] Furthermore, the silo assembly includes a rectangular bottom plate, two baffles erected on both sides of the wide side of the bottom plate, and a plurality of baffle rods distributed in an array on the bottom plate. The baffles and the baffle rods divide the upper part of the bottom plate into a plurality of silos with thin EVA strip structures for accommodating EVA strips, and a push handle is provided on the wide side of the silo assembly.

[0014] The beneficial effects of the technical solution of the utility model are:

[0015] 1. The material change trolley of this equipment moves with double-track wheels, which can move along the Y-track on the floor of the factory, so that the material change trolley can be quickly adjusted to be parallel to the nearest side of the base of the loading unit. The second magnetic suction mechanism fixes the position between the material change trolley and the base through the adsorption of the first magnetic suction mechanism. There is no need to debug the point or calibrate the workpiece coordinates, and the material can be quickly replenished and replaced, with high work efficiency.

[0016] 2. The gripper assembly will not cause the material changing trolley to move each time the EVA strip is taken, thus reducing the difficulty of positioning and grasping the EVA strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional picture of the photovoltaic module EVA strip feeding and hot stamping machine in operation;

[0018] Figure 2 This is a top view of the photovoltaic module EVA strip feeding and hot stamping machine in operation;

[0019] Figure 3 This is a three-dimensional picture of the conveying unit delivering the board;

[0020] Figure 4 is a three-dimensional diagram of the first loading unit;

[0021] Figure 5 It is a position relationship diagram of the gripper assembly and the welding head assembly;

[0022] Figure 6 is an enlarged view of the welding head assembly;

[0023] Figure 7 This is a three-dimensional view of the second material change trolley.

[0024] The numbers in the figure represent:

[0025] 100-Photovoltaic module EVA long strip feeding hot stamping machine,

[0026] 1- conveying unit, 11- synchronous conveyor belt, 12- X-direction alignment mechanism, 13- Y-direction centering mechanism, 14- roller;

[0027] 2a-first loading unit, 2b-second loading unit, 21-base, 211-first magnetic suction mechanism, 22-mechanical arm, 23-gripper assembly, 231-guide bracket, 232-nozzle, 233-vacuum generator, 24-welding head assembly, 241-L-shaped connecting block, 242-lifting guide rail, 243-spring pressure block, 244-pressure head slider, 2441-positioning column, 245-spot hot copper block, 246-stopper, 25-welding head temperature controller;

[0028] 3a-first material changing trolley, 3b-second material changing trolley, 31-bin assembly, 311-bottom plate, 312-baffle plate, 313-baffle rod, 32-double-track wheel, 33-push handle, 34-second magnetic attraction mechanism;

[0029] 200-Photovoltaic panels;

[0030] 300-EVA strip. DETAILED DESCRIPTION

[0031] The utility model is further described in detail below in conjunction with specific embodiments.

[0032] Example:

[0033] like Figure 1 and Figure 2As shown, a photovoltaic module EVA strip loading and hot spot machine 100 of the utility model comprises a conveying unit 1, a first loading unit 2a, a second loading unit 2b, a first material changing trolley 3a and a second material changing trolley 3b. The conveying unit 1 conveys the photovoltaic module 200 along the X direction, the first loading unit 2a and the second loading unit 2b are respectively arranged on both sides of the Y direction of the conveying unit 1, the first material changing trolley 3a is arranged on the X direction side of the first loading unit 2a, and the second material changing trolley 3b is arranged on the X direction side of the second loading unit 2b. The X direction and the Y direction are both located in the horizontal plane and are perpendicular to each other.

[0034] The conveying unit 1 is used to convey the photovoltaic module 200 to the assembly area and perform centering positioning. The first material change trolley 3a and the second material change trolley 3b are both used to batch-convey the EVA strips 300 to the corresponding loading units. The first loading unit 2a and the second loading unit 2b respectively place the EVA strips 300 from both sides of the photovoltaic module 200 to the installation area of ​​the photovoltaic module 200 and complete the spot welding. The conveying unit 1, the first loading unit 2a, the second loading unit 2b, the first material change trolley 3a and the second material change trolley 3b are all modular designs, which are easier to replace parts and debug than the whole machine structure.

[0035] like Figure 3 As shown, the conveying unit 1 includes a synchronous conveyor belt 11 whose conveying direction is along the X direction, a plurality of X-direction alignment mechanisms 12 arranged on both sides of the X direction of the synchronous conveyor belt 11, and a plurality of Y-direction centering mechanisms 13 arranged on both sides of the Y direction of the synchronous conveyor belt 11. A plurality of auxiliary rollers 14 whose conveying direction is along the X direction are also arranged on both sides of the Y direction of the synchronous conveyor belt 11.

[0036] The synchronous conveyor belt 11 is used to move the photovoltaic module 200. The main part of the photovoltaic module 200 is fragile glass, so the auxiliary rollers 14 are used to support the two sides of the photovoltaic module 200 to prevent the two sides from being overhanging too much and deforming to cause glass breakage. When the photovoltaic module 200 is located in the middle of the synchronous conveyor belt 11, it is necessary to use the X-direction alignment mechanism 12 and the Y-direction centering mechanism 13 to clamp the sides from all sides, so that the photovoltaic module 200 can maintain its position when welding the EVA strip 300.

[0037] like Figure 4 and Figure 5As shown, the first loading unit 2a and the second loading unit 2b have similar structures, both of which include a base 21, a mechanical arm 22 disposed on the upper part of the base 21, a gripper assembly 23 disposed at the free end of the mechanical arm 22, and a pair of welding head assemblies 24 disposed on both sides of the gripper assembly 23. The gripper assembly 23 includes a guide bracket 231 connected to the mechanical arm 22, a plurality of suction nozzles 232 arranged side by side along the guide bracket 231, and a vacuum generator 233 disposed on the guide bracket 231. The vacuum generator 233 provides suction for all suction nozzles 232, and the suction surfaces of all suction nozzles 232 are flush and located below the guide bracket 231. A plurality of first magnetic suction mechanisms 211 are disposed on the X-direction side of the base 21.

[0038] The gripper assembly 23 uses the suction nozzle 232 to suck the EVA strip 300 from multiple positions along the length direction, and the robot arm 22 is used to complete the movement of the gripper assembly 23, so that the EVA strip 300 is moved from the corresponding material change trolley to the photovoltaic module 200. The welding head assembly 24 can perform spot welding immediately after the EVA strip 300 is placed in place, avoiding the need for another positioning action by another robot, improving work efficiency, and ensuring spot welding accuracy.

[0039] like Figure 6 As shown, the welding head assembly 24 includes an L-shaped connecting block 241 installed at the lower end of the guide bracket 231, a lifting guide rail 242 installed on the outside of the L-shaped connecting block 241, a spring pressure block 243 fixedly arranged above the lifting guide rail 242, a pressure head slider 244 sliding along the Z direction on the lifting guide rail 242, and a spot copper block 245 fixed on the outside of the pressure head slider 244. The guide bracket 231 is provided with a welding head temperature controller 25 for controlling the heating temperature of the spot copper block 245, and the upper part of the pressure head slider 244 is provided with a positioning column 2441 passing through the spring pressure block 243 upwards. The spring pressure block 243 acts downward on the upper part of the pressure head slider 244, and a stopper 246 is fixed below the lifting guide rail 242 to prevent the pressure head slider 244 from detaching from the lifting guide rail 242. The Z direction is the vertical direction.

[0040] Under the action of the spring pressure block 243 and the stopper 246, the pressure head slider 244 can only slide within the range of the lifting rail 242. The spot copper block 245 is floatable, and the floating direction is the Z direction, so that the welding head assembly 24 can automatically give way when pressing on the EVA strip 300 and the photovoltaic module 200 to avoid crushing the glass. The welding head thermostat 25 will control the temperature of the spot copper block 245, so that the EVA strip 300 is partially melted and can be attached to the photovoltaic module 200.

[0041] like Figure 3As shown, the first material changing trolley 3a and the second material changing trolley 3b have similar structures, both of which include a silo assembly 31 located at the top, four double-track wheels 32 located at the four corners of the bottom and moving along the Y direction, a push handle 33 located at the wide side of the silo assembly 31, and a second magnetic attraction mechanism 34 located at the side of the lower part. The silo assembly 31 includes a rectangular bottom plate 311, two baffles 312 vertically arranged on both sides of the wide side of the bottom plate 311, and a plurality of baffles 313 arranged in an array on the bottom plate 311. The baffles 312 and the baffles 313 divide the top of the bottom plate 311 into a plurality of silos of thin EVA strip structures for accommodating EVA strips 300. The second magnetic attraction mechanism 34 and the first magnetic attraction mechanism 211 are mutually attracted.

[0042] The silo assembly 31 is used to stack the EVA strips 300 for supply to the corresponding loading unit. The push handle 33 provides a force position for pushing and pulling the material change trolley. The material change trolley moves using the double-track wheels 32, which can move along the Y-direction track on the factory floor, so that the material change trolley can be quickly adjusted to be parallel to the nearest side of the base 21 of the loading unit. The second magnetic suction mechanism 34 fixes the position between the material change trolley and the base 21 by adsorption with the first magnetic suction mechanism 211. There is no need to debug the point position or calibrate the workpiece coordinates, and the material can be replenished and replaced quickly. The gripper assembly 23 will not cause the position of the material change trolley to move each time the EVA strip 300 is taken, reducing the difficulty of positioning and grasping the EVA strip 300.

[0043] The use process of photovoltaic module EVA strip feeding hot stamping machine 100 is as follows:

[0044] The photovoltaic module 200 is run to the synchronous conveyor belt 11 of the equipment through the front-end assembly line, and the X-direction alignment mechanism 12 and the Y-direction centering mechanism 13 align the four sides of the photovoltaic module 200; multiple groups of EVA strips 300 are manually placed in the material bins of the first material change trolley 3a and the second material change trolley 3b, and the first material change trolley 3a is pushed to one side of the first loading unit 2a, and the first magnetic attraction mechanism 211 and the second magnetic attraction mechanism 34 are automatically adsorbed, so that the material change trolley and the loading unit are quickly positioned and maintain relative positions; the gripper assembly 23 is in the machine Driven by the mechanical arm 22, it runs to the top of the silo, then relies on the suction nozzle 232 to suck the EVA strip 300, and then places it on the short side of the photovoltaic module 200. The spot-hot copper block 245 presses the two ends of the EVA strip 300 on the upper surface of the photovoltaic module 200 to complete the spot-hot welding; the gripper assembly 23 goes back to suck the next EVA strip 300, and the photovoltaic module 200 that has completed the spot-hot welding is released by the X-direction straightening mechanism 12 and the Y-direction centering mechanism 13, and the synchronous conveyor belt 11 moves it along the X-direction to the next station outside the equipment.

[0045] 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 EVA strip loading and hot stamping machine, comprising a conveying unit, a loading unit and a material changing trolley, wherein the conveying unit conveys the photovoltaic module along the X direction, the loading unit is arranged on both sides of the conveying unit in the Y direction, and the material changing trolley is arranged on the X direction side of the loading unit, and the X direction and the Y direction are both located in the horizontal plane and are perpendicular to each other; characterized in that: The loading unit includes a base, a robotic arm arranged on the upper part of the base, and a gripper assembly arranged at the free end of the robotic arm. A plurality of first magnetic suction mechanisms are arranged on the X-direction side of the base. The material changing trolley includes a silo assembly located at the upper part, four double-track wheels located at the four corners of the lower part and moving along the Y-direction, and a second magnetic suction mechanism located on the side of the lower part. The second magnetic suction mechanism and the first magnetic suction mechanism are mutually attracted.

2. The photovoltaic module EVA strip loading and hot stamping machine according to claim 1, characterized in that: The conveying unit comprises a synchronous conveyor belt with a conveying direction along the X direction, a plurality of X-direction alignment mechanisms arranged on both sides of the synchronous conveyor belt in the X direction, and a plurality of Y-direction centering mechanisms arranged on both sides of the synchronous conveyor belt in the Y direction.

3. The photovoltaic module EVA strip loading and hot stamping machine according to claim 2, characterized in that: A plurality of auxiliary rollers with the conveying direction along the X direction are also arranged on both sides of the synchronous conveyor belt in the Y direction.

4. The photovoltaic module EVA strip loading and hot stamping machine according to claim 1, characterized in that: A loading unit is respectively provided on both sides of the conveying unit in the Y direction, and a material changing trolley is respectively provided on the side of each loading unit in the X direction.

5. The photovoltaic module EVA strip loading and hot stamping machine according to claim 1 or 4, characterized in that: The gripper assembly includes a guide bracket connected to the robotic arm, a plurality of suction nozzles arranged side by side along the guide bracket, and a vacuum generator arranged on the guide bracket, wherein the vacuum generator provides suction for all suction nozzles, and the suction surfaces of all suction nozzles are flush and located below the guide bracket.

6. The photovoltaic module EVA strip loading and hot stamping machine according to claim 5, characterized in that: A pair of welding head assemblies are provided on both sides of the gripper assembly, and the welding head assembly includes an L-shaped connecting block installed at the lower end of the guide bracket, a lifting guide rail installed on the outside of the L-shaped connecting block, a pressure head slider sliding along the Z direction on the lifting guide rail, and a hot-spot copper block fixed on the outside of the pressure head slider. A welding head temperature controller for controlling the heating temperature of the hot-spot copper block is provided on the guide bracket, and the Z direction is the vertical direction.

7. The photovoltaic module EVA strip loading and hot stamping machine according to claim 6, characterized in that: The welding head assembly also includes a spring pressure block fixedly arranged above the lifting guide rail, a positioning column passing upward through the spring pressure block is provided on the upper part of the pressure head slider, the spring pressure block acts downward on the upper part of the pressure head slider, and a stopper is fixed below the lifting guide rail to prevent the pressure head slider from detaching from the lifting guide rail.

8. The photovoltaic module EVA strip loading and hot stamping machine according to claim 1 or 4, characterized in that: The silo assembly includes a rectangular bottom plate, two baffles erected on both sides of the wide side of the bottom plate, and a plurality of baffle rods distributed in an array on the bottom plate. The baffles and the baffle rods divide the upper part of the bottom plate into a plurality of silos with thin EVA strip structures for accommodating EVA strips. A push handle is provided on the wide side of the silo assembly.

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