Mechanism for preventing welding belt from deviating and photovoltaic module series welding machine

Abstract

The utility model discloses a mechanism for preventing a welding belt from deviating and a photovoltaic module series welding machine. The mechanism comprises: a roller having a cylindrical middle section, the extension direction of the cylindrical middle section being the axial direction of the roller; the rubber sheet is wrapped on the peripheral surface of the cylindrical middle section of the roller; the two universal bearings are respectively arranged at the two ends of the roller, and the end parts of the roller are fixed on the bearing inner rings of the corresponding universal bearings; the two connecting pieces and the two universal bearings are arranged in a one-to-one correspondence mode, and bearing outer rings of the universal bearings are fixed to the corresponding connecting pieces; the two air cylinders and the two connecting pieces are arranged in a one-to-one correspondence mode, and the tail ends of output shafts of the air cylinders are fixed to the corresponding connecting pieces; the two sliding rails are arranged in one-to-one correspondence with the two connecting pieces, and the sliding rails limit the moving direction of the corresponding connecting pieces to be the telescopic direction of the output shafts of the corresponding air cylinders. The mechanism effectively prevents the welding belt from deviating.

Description

Technical Field

[0001] The utility model relates to a mechanism for preventing a welding belt from deviating and a photovoltaic component string welding machine. Background Art

[0002] Stringer machines are used in the manufacture of photovoltaic modules. During operation, the welding belt inevitably deviates. The welding belt is equipped with ventilation holes. A vacuum device below the welding belt suctions the cells above the belt through the ventilation holes, thereby securing the cells. If the welding belt deviates in the area where the ventilation holes are located, it can cause poor soldering of the cells, reducing production capacity and yield. Utility Model Content

[0003] The utility model provides a mechanism for preventing a welding belt from deviating and a photovoltaic component string welding machine.

[0004] The technical solution of the utility model is as follows: a mechanism for preventing a welding belt from deviating, comprising:

[0005] The roller has a cylindrical middle section, wherein the extension direction of the cylindrical middle section is the axial direction of the roller;

[0006] The rubber is wrapped around the outer peripheral surface of the cylindrical middle section of the roller;

[0007] Two universal bearings are respectively provided at both ends of the roller, and the ends of the roller are fixed on the inner rings of the corresponding universal bearings;

[0008] Two connecting pieces are provided corresponding to the two universal bearings one by one, and the outer rings of the universal bearings are fixed on the corresponding connecting pieces;

[0009] Two cylinders are provided corresponding to the two connecting pieces in a one-to-one manner, and the ends of the output shafts of the cylinders are fixed to the corresponding connecting pieces;

[0010] Two slide rails are provided in one-to-one correspondence with the two connecting members, and the slide rails limit the moving direction of the corresponding connecting member to the telescopic direction of the output shaft of the corresponding cylinder.

[0011] Optionally, the connecting member includes: a first flat plate portion, a second flat plate portion and a third flat plate portion; the first flat plate portion is vertically fixed on the upper surface of the second flat plate portion, a first through hole is opened on the first flat plate portion, and the end section of the output shaft of the cylinder is fixed in the first through hole; the third flat plate portion is vertically fixed on the upper surface of the second flat plate portion, a second through hole is opened on the third flat plate portion, and the outer ring of the universal bearing is fixed in the second through hole; the third flat plate portion is perpendicular to the second flat plate portion.

[0012] Optionally, the slide rail is located below the corresponding connecting member.

[0013] Optionally, two cylinder seats are further included, which are arranged in a one-to-one correspondence with the two cylinders, and the cylinders are fixed on the corresponding cylinder seats.

[0014] Optionally, it also includes an air source, a manual air pressure valve and two pressure regulating valves, the air outlet of the air source is connected to the air inlet of the manual air pressure valve, the air outlet of the manual air pressure valve is connected to the air inlets of the two pressure regulating valves through a three-way piece, the two pressure regulating valves are arranged in a one-to-one correspondence with the two cylinders, and the air outlet of the pressure regulating valve is connected to the air inlet of the corresponding cylinder.

[0015] The technical solution of the present utility model is as follows: A photovoltaic module string welding machine, comprising: a welding belt, a roller and the above-mentioned mechanism for preventing the welding belt from deviating, the welding belt is tightly wound around the roller, the roller of the mechanism is arranged parallel to the roller, and the cylinder is used to drive the roller to move toward the roller so that the rubber on the roller squeezes the welding belt toward the roller.

[0016] When the welding belt is working, two cylinders push the two connecting parts toward the roller, forcing the rubber on the roller and the welding belt into contact with each other. The welding belt is always in close contact with the roller and moves with the roller's rotation. The universal bearing ensures that the roller can rotate at all times, thus preventing the welding belt from deviating. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a mechanism for preventing a welding belt from deviating according to the present invention.

[0018] The figures are marked as follows: 1. Air source; 2. Manual air pressure valve; 3. Pressure regulating valve; 4. Cylinder; 41. Output shaft; 51. First flat plate portion; 52. Second flat plate portion; 53. Third flat plate portion; 6. Slide rail; 7. Universal bearing; 8. Roller; 81. Rubber; 100. Welding belt; 200. Roller. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to specific embodiments, but the protection scope of the present invention is not limited thereto.

[0020] Figure 1 This is a schematic diagram of the structure of the mechanism for preventing the welding belt 100 from deviating according to the present invention. Figure 1 An embodiment of the present invention provides a mechanism for preventing a welding belt 100 from deviating, comprising: a roller 8, a rubber 81, two universal bearings 7, two connecting pieces, two cylinders 4 and two slide rails 6. Figure 1Only the universal bearing 7, cylinder 4 and slide rail 6 near one end of the roller 8 are shown. The structural features and connection relationship of the universal bearing 7, cylinder 4 and slide rail 6 near the other end of the roller 8 are the same.

[0021] Roller 8 has a cylindrical middle section extending in the axial direction of roller 8. Roller 8 is a metal component and can be solid or hollow, as long as it ensures sufficient mechanical strength. During use, roller 8 extends parallel to the direction of extension of drum 200. Roller 8 can be cylindrical overall. The ends of roller 8 can also be cylindrical with a smaller diameter than the cylindrical middle section. Roller 8 is coaxial overall.

[0022] Rubber 81 wraps around the outer circumference of the cylindrical middle section of roller 8. Rubber 81 rotates synchronously with roller 8. Rubber 81 is made of, for example, rubber. During use, rubber 81 contacts welding belt 100, providing sufficient friction without damaging the latter. Roller 8 and rubber 81 together form a rubber roller.

[0023] Two universal bearings 7 are mounted at either end of roller 8, with the ends of roller 8 fixed to the inner races of the corresponding universal bearings 7. The inner races can still rotate freely even when the planes of the inner and outer races form an angle greater than 0. Universal bearings 7 can be made of commercially available standard components.

[0024] The two connecting pieces are arranged in a one-to-one correspondence with the two universal bearings 7, and the outer rings of the universal bearings 7 are fixed on the corresponding connecting pieces. The two cylinders 4 are arranged in a one-to-one correspondence with the two connecting pieces, and the ends of the output shafts 41 of the cylinders 4 are fixed on the corresponding connecting pieces.

[0025] For example, a hole or a groove is made on the connecting piece, and the outer ring of the universal bearing 7 is fixed to the connecting piece by welding, clamping or the like.

[0026] Figure 1 Schematically showing the inner bearing ring and the outer bearing ring of the universal bearing 7.

[0027] Optionally, the connecting member includes: a first flat plate portion 51, a second flat plate portion 52 and a third flat plate portion 53; the first flat plate portion 51 is vertically fixed on the upper surface of the second flat plate portion 52, a first through hole is opened on the first flat plate portion 51, and the end section of the output shaft 41 of the cylinder 4 is fixed in the first through hole; the third flat plate portion 53 is vertically fixed on the upper surface of the second flat plate portion 52 (that is, the third flat plate portion 53 is perpendicular to the second flat plate portion 52, and the third flat plate portion 53 is fixed on the upper surface of the second flat plate portion 52), a second through hole is opened on the third flat plate portion 53, and the outer ring of the universal bearing 7 is fixed in the second through hole; the third flat plate portion 53 is perpendicular to the second flat plate portion 52.

[0028] During use, the normal line of the third flat portion 53 is parallel to the axis of the drum 200 , and the normal line of the first flat portion 51 is parallel to the radial direction of the drum 200 at the contact position between the rubber 81 and the welding belt 100 .

[0029] Specifically, the piston (not shown) of the cylinder 4 is connected to the output shaft 41, and the piston's movement direction is parallel to the axial direction of the output shaft. The output shaft 41 of the cylinder 4 passes through the first flat portion 51 and is then screwed onto the free end of the output shaft 41 of the cylinder 4 using a nut, thereby achieving a fixed connection between the output shaft 41 of the cylinder 4 and the connecting member.

[0030] The connection method between the connecting piece and the output shaft 41 of the cylinder 4 is not limited thereto, and may be, for example, welding, threaded connection, etc., as long as the output shaft 41 of the cylinder 4 and the connecting piece are fixedly connected.

[0031] The shape of the connecting member is not limited thereto. In some other embodiments, the connecting member is a solid block with the aforementioned first through hole and second through hole defined thereon.

[0032] Two slide rails 6 are provided in a one-to-one correspondence with the two connectors. The slide rails 6 define the movement direction of the corresponding connector as the extension and retraction direction of the output shaft of the corresponding cylinder 4. For example, a slider (not shown) that cooperates with the slide rails 6 is fixedly provided on the bottom surface of the connector. The slider can be integral with the connector or separate from the connector.

[0033] Figure 1 In the illustrated embodiment, the slide rail 6 is located below the corresponding connecting member, and the slide rail 6 also serves to support the connecting member.

[0034] In some other embodiments, the slide rail 6 is located above the corresponding connecting member, and the slide rail 6 lifts the corresponding connecting member.

[0035] Optionally, two cylinder seats (not shown) are further included, which are arranged in a one-to-one correspondence with the two cylinders 4, and the cylinders 4 are fixed on the corresponding cylinder seats. The cylinder seats are fixed relative to the photovoltaic module string welding machine to provide support for the cylinders 4.

[0036] Optionally, it also includes an air source 1, a manual air pressure valve 2 and two pressure regulating valves 3, the air outlet of the air source 1 is connected to the air inlet of the manual air pressure valve 2, the air outlet of the manual air pressure valve 2 is connected to the air inlets of the two pressure regulating valves 3 through a three-way piece (not shown), the two pressure regulating valves 3 are arranged in a one-to-one correspondence with the two cylinders 4, and the air outlet of the pressure regulating valve 3 is connected to the air inlet of the corresponding cylinder 4.

[0037] Manual air pressure valve 2 and pressure regulating valve 3 are both used to adjust the air pressure. The output air pressure of pressure regulating valve 3 is also manually set. When in use, the output air pressure values ​​of the two pressure regulating valves 3 are set to be equal.

[0038] In other embodiments, two independent gas sources 1 supply gas to two cylinders 4 respectively, and a pressure regulating valve 3 is provided on the pipeline between the cylinder 4 and the gas source 1 .

[0039] During operation, the output shafts 41 of the two air cylinders 4 are ejected, and the connector moves along the slide rails 6 toward the roller 200. The connector, in turn, drives the roller toward the roller 200, where the rubber 81 on the roller squeezes the welding belt 100 on the roller 200. Even if the pressure of the two air cylinders 4 fluctuates and the roller and roller 200 are not strictly parallel, the roller can still rotate freely. Furthermore, the elasticity of the rubber 81 ensures that the squeezed area of ​​the welding belt 100 remains parallel to the axis of the roller 200, ensuring uniform force on the welding belt 100 and preventing deviation.

[0040] Based on the same inventive concept, an embodiment of the present invention also provides a photovoltaic module string welding machine, including: a welding belt 100, a roller 200 and the above-mentioned mechanism for preventing the welding belt 100 from deviating. The welding belt 100 is tightly wound around the roller 200, and the roller 8 of the mechanism is arranged parallel to the roller 200. The cylinder 4 is used to drive the roller 8 to move toward the roller 200 so that the rubber 81 on the roller 8 squeezes the welding belt 100 toward the roller 200.

[0041] The present invention does not limit the remaining structures of the string welding machine, and the remaining structures can be designed according to the existing technology.

[0042] The various embodiments of the present invention are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0043] The scope of protection of the present invention is not limited to the above-described embodiments. Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the scope and spirit of the present invention. If such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A mechanism for preventing a welding belt from deviating, characterized in that: include: The roller has a cylindrical middle section, wherein the extension direction of the cylindrical middle section is the axial direction of the roller; The rubber is wrapped around the outer peripheral surface of the cylindrical middle section of the roller; Two universal bearings are respectively provided at both ends of the roller, and the ends of the roller are fixed on the inner rings of the corresponding universal bearings; Two connecting pieces are provided corresponding to the two universal bearings one by one, and the outer rings of the universal bearings are fixed on the corresponding connecting pieces; Two cylinders are provided corresponding to the two connecting pieces in a one-to-one manner, and the ends of the output shafts of the cylinders are fixed to the corresponding connecting pieces; Two slide rails are provided in one-to-one correspondence with the two connecting members, and the slide rails limit the moving direction of the corresponding connecting member to the telescopic direction of the output shaft of the corresponding cylinder.

2. The mechanism according to claim 1, characterized in that The connecting member includes: a first flat plate portion, a second flat plate portion and a third flat plate portion; the first flat plate portion is vertically fixed on the upper surface of the second flat plate portion, a first through hole is provided on the first flat plate portion, and the end section of the output shaft of the cylinder is fixed in the first through hole; the third flat plate portion is vertically fixed on the upper surface of the second flat plate portion, a second through hole is provided on the third flat plate portion, and the outer ring of the universal bearing is fixed in the second through hole; the third flat plate portion is perpendicular to the second flat plate portion.

3. The mechanism according to claim 2, characterized in that The slide rail is located below the corresponding connecting piece.

4. The mechanism according to claim 1, characterized in that It also includes two cylinder seats, which are arranged in a one-to-one correspondence with the two cylinders, and the cylinders are fixed on the corresponding cylinder seats.

5. The mechanism according to claim 1, characterized in that It also includes an air source, a manual air pressure valve and two pressure regulating valves. The air outlet of the air source is connected to the air inlet of the manual air pressure valve. The air outlet of the manual air pressure valve is connected to the air inlets of the two pressure regulating valves through a three-way piece. The two pressure regulating valves are arranged in a one-to-one correspondence with the two cylinders, and the air outlet of the pressure regulating valve is connected to the air inlet of the corresponding cylinder.

6. The mechanism according to claim 1, characterized in that The roller is cylindrical as a whole or has two ends with a cylindrical shape having a diameter smaller than that of the cylindrical middle section.

7. The mechanism according to claim 1, characterized in that The outer ring of the universal bearing is fixed to the connecting piece by welding or clamping.

8. The mechanism according to claim 1, wherein: A sliding block matched with the sliding rail is fixedly arranged on the bottom surface of the connecting member.

9. The mechanism according to claim 8, characterized in that The slider and the connecting piece are an integral structure or a separate structure.

10. A photovoltaic module string welding machine, characterized in that: include: A welding belt, a roller, and a mechanism for preventing the welding belt from deviating according to any one of claims 1 to 9, wherein the welding belt is tightly wound around the roller, the roller of the mechanism is arranged parallel to the roller, and the cylinder is used to drive the roller to move toward the roller so that the rubber on the roller squeezes the welding belt toward the roller.

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