CN214733453U

CN214733453U - Guide wheel for multi-main-grid circular welding strip tinning machine

Info

Publication number: CN214733453U
Application number: CN202121087822.XU
Authority: CN
Inventors: 庞永翌
Original assignee: Changzhou Jiutian New Energy Technology Co ltd
Current assignee: Changzhou Jiutian New Energy Technology Co ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-11-16
Anticipated expiration: 2031-05-20

Abstract

The utility model relates to a circle welds and takes production technical field, especially relates to many main grids circle welds guide pulley for tinning machine, including guide pulley body, guide pulley body outer lane has the guide way that supplies the wire rod process, and the guide way is V type structure, first inclined plane and second inclined plane bilateral symmetry on the guide way, and be equipped with a plurality of bar grooves on first inclined plane and second inclined plane relatively, and a plurality of bar grooves set up along the circumferencial direction equipartition. The utility model discloses well guide way adopts V type structure, can play the correct guide effect to the wire rod, has avoided the wire rod to appear rocking and the phenomenon of skidding in the slot, has reduced line offset and surrender fluctuation, has improved the rolling quality of wire rod; through the setting in bar groove, when guaranteeing the guide effect, the effectual area of contact that has reduced guide pulley and wire rod has reduced frictional resistance, has reduced the pulling force of wire rod itself, has reduced the yield strength of wire rod.

Description

Guide wheel for multi-main-grid circular welding strip tinning machine

Technical Field

The utility model relates to a circle welds and takes production technical field, especially relates to many main grids circle welds and takes guide pulley for tinning machine.

Background

The photovoltaic module end multi-main-grid technology gradually becomes the mainstream because the photovoltaic module end multi-main-grid technology has optical and electrical gains and can greatly reduce the cost of silver paste. The multi-main grid can improve the light receiving area of the battery, reduce the current heat loss and improve the power of the battery, the optical utilization rate can be improved to more than 40% from less than 5%, and finally the power of the component can be improved by more than 10W. In the aspect of reducing cost, the number of the main grids is increased by reducing the width of the main grids, so that the using amount of silver paste can be reduced, the positive silver consumption of a conventional main grid battery piece is about 110mg, the positive silver consumption of a multi-main grid battery (taking 12 grids as an example) is about 70mg, and the cost saving range of the silver paste can reach 36%.

Corresponding to the multi-main-grid technology, the photovoltaic welding strip matched with the multi-main-grid technology is a circular welding strip, along with the reduction of the diameter of the circular welding strip, the shading area of a battery piece is reduced, the power of a unit battery piece is improved, and therefore the diameter of the circular welding strip required in the market tends to be continuously reduced. In the case of a reduced diameter of the circular welding strip, the performance of the circular welding strip is maintained, and new challenges are brought to the production process and equipment. The production of the circular welding strip comprises the following steps: the main processes of wire drawing, annealing, tinning, rolling and the like.

In the production process, the flow of products from raw materials to finished products is completed by means of guide wheels and traction wheels, the cross sections of the traction wheels and the guide wheels of the existing circular welding strip tinning machine are wide U-shaped grooves as shown in fig. 1, but in the actual production process, copper wires or tinning wires shake and slip back and forth in grooves due to overlarge transverse space, so that the finished products have serious wire deviation (the wires are not straight and have S-shaped deviation) and yield fluctuation, the undesirable complaints such as white exposure and the like in the welding process of client side components are directly caused, and the thinner the wire diameter is, the more obvious the undesirable complaints are.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the guide wheel for the multi-main-grid circular welding belt tinning machine is provided, the phenomenon that wires shake and slip in grooves is avoided, the wire offset and yield fluctuation are reduced, and the welding quality of finished products during welding is guaranteed.

In order to achieve the above purpose, the utility model adopts the technical scheme that: many main bars circle welds and takes guide pulley for tinning machine includes: guide pulley body, the guide pulley body outer lane has the guide way that supplies the wire rod to pass through, the guide way is V type structure, first inclined plane and second inclined plane bilateral symmetry on the guide way, just first inclined plane with be equipped with a plurality of bar grooves on the second inclined plane relatively, it is a plurality of the bar groove sets up along the circumferencial direction equipartition.

Furthermore, a groove is formed in the bottom of the guide groove, the cross section of the groove is of a U-shaped structure, and two end portions of an opening of the groove are located on the first inclined surface and the second inclined surface respectively.

Furthermore, the first inclined surface and the second inclined surface are coated with wear-resistant paint.

Furthermore, a plurality of lightening holes are formed in the guide wheel body, and the lightening holes are evenly arrayed in a ring shape.

Furthermore, two symmetrical side surfaces of the guide wheel body are provided with annular grooves.

Further, a first included angle formed by the first inclined surface and the second inclined surface is an acute angle.

Furthermore, the guide groove is an isosceles triangle, and the length of the opposite side of the first included angle is greater than or equal to the groove depth of the guide groove.

Further, the wire rod is tangent to the first inclined surface to form a first contact point, the wire rod is tangent to the second inclined surface to form a second contact point, the first contact point and the second contact point form a central angle with a connection line of the circle center of the wire rod, and the central angle is larger than or equal to the first included angle.

Furthermore, a through hole is formed in the center of the guide wheel body, and a bearing is arranged in the through hole.

The utility model has the advantages that: the guide groove of the guide wheel body of the middle circular welding strip tinning machine adopts a V-shaped structure, so that the position of a wire in the groove is ensured, the wire can be correctly guided, the phenomenon that the wire shakes and slips in the groove is avoided, the wire offset and yield fluctuation are reduced, and the winding quality of the wire is improved, thereby ensuring the welding quality of a finished product; through the setting in bar groove, make the surface area of whole wire rod guide way will less half, when guaranteeing the guide effect, the effectual area of contact that has reduced guide pulley and wire rod to reduce frictional resistance, reduced the pulling force of wire rod itself, and finally reduced the yield strength of wire rod.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a guide wheel in the prior art;

FIG. 2 is a front view of a guide wheel according to an embodiment of the present invention;

fig. 3 is a sectional view of the guide wheel in the embodiment of the present invention;

FIG. 4 is a sectional view A-A of FIG. 3;

FIG. 5 is a schematic view of the structure of the guide groove in the embodiment of the present invention;

fig. 6 is a schematic view of the strip-shaped groove structure in the embodiment of the present invention.

Reference numerals: 1. a guide groove; 11. a first inclined surface; 12. a second inclined surface; 2. a strip-shaped groove; 3. a groove; 4. lightening holes; 5. an annular groove; 6. a through hole; 7. a first contact point; 8. a second contact point; 9. and (3) wire rods.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 2 to 6, the guide wheel for the multi-main-grid circular welding strip tinning machine comprises a guide wheel body, wherein a guide groove 1 for a wire rod 9 to pass through is formed in the outer ring of the guide wheel body, the guide groove 1 is of a V-shaped structure, a first inclined surface 11 and a second inclined surface 12 on the guide groove 1 are bilaterally symmetrical, a plurality of strip-shaped grooves 2 are oppositely arranged on the first inclined surface 11 and the second inclined surface 12, and the strip-shaped grooves 2 are uniformly distributed along the circumferential direction. It should be noted that the strip-shaped grooves 2 on the first inclined surface 11 and the second inclined surface 12 are oppositely arranged, so that the uniform stress of the wire 9 during traction is ensured, the rationalization of the tensioning force is effectively ensured, and the phenomena of non-uniform winding and non-uniform arrangement of the wire 9 under the guiding action of the guide groove 1 are avoided.

The utility model discloses well circle welds guide pulley body's of taking tinning machine guide way 1 and adopts V type structure, has guaranteed wire rod 9 position at the inslot, can play the correct guide effect to wire rod 9, has avoided wire rod 9 to appear rocking and the phenomenon of skidding in the ditch inslot, has reduced line offset and surrender undulant, has improved wire rod 9's rolling quality to off-the-shelf welding quality has been guaranteed. Through the setting of bar groove 2, make the surface area of whole wire rod 9 guide way 1 will reduce half, when guaranteeing the guide effect, the effectual area of contact that reduces guide way and wire rod 9 to reduce frictional resistance, reduced the pulling force of wire rod 9 itself, and finally reduced the yield strength of wire rod 9.

Because the relative setting in bar groove 2, in order to reduce the processing degree of difficulty, 1 bottom of guide way is equipped with recess 3, and the cross-section of recess 3 is U type structure, and the both ends of its opening part are located first inclined plane 11 and second inclined plane 12 respectively, and the tank bottom in bar groove 2 extends to 3 tank bottoms of recess and forms trapezium structure, has not only reduced the degree of difficulty of 2 processing in bar groove, has still simplified the processing of guide way 1, has improved the convenience of processing.

In order to maintain the durability of the guide wheel, the first inclined surface 11 and the second inclined surface 12 are coated with wear-resistant paint. The surface of the guide groove 1 is coated with a thin wear-resistant coating layer, such as a ceramic coating, so that the wear of the guide wheel is reduced, and the service life is prolonged.

The utility model discloses in the preferred embodiment, set up a plurality of lightening holes 4 on the guide pulley body, the even annular array in lightening hole 4 has alleviateed guide pulley self weight, has reduced the rotation resistance.

On the basis of the embodiment, the two symmetrical side surfaces of the guide wheel body are provided with the annular grooves 3, the weight of the guide wheel body is further reduced by the annular grooves 3, and the structural strength of the guide wheel body is ensured.

The utility model discloses in the preferred embodiment, contained angle between first inclined plane 11 and the second inclined plane 12 is the acute angle, and preferred angular range is 60~90, has guaranteed that the yield strength of circular welding area in the different positions of guide way 1 meet mutually tends to unanimity, has improved the rolling quality of wire rod 9.

As a preference of the above embodiment, specifically, the guide groove 1 is an isosceles triangle, and the length of the side corresponding to the first included angle is greater than or equal to the groove depth of the V-shaped guide groove 1.

In the preferred embodiment of the present invention, the wire 9 forms the first contact point 7 tangentially with the first inclined plane 11, the wire 9 forms the second contact point 8 tangentially with the second inclined plane 12, the first contact point 7 and the second contact point 8 form a central angle with the line connecting the centers of the circles of the wire 9, and the central angle is greater than or equal to the first included angle. Under the condition that the thickness of the guide wheel is not changed, the central angle is larger than or equal to the first included angle, and the running resistance of the circular welding strip is reduced, so that the traction force of the guide wheel to the wire 9 is reduced, the circular welding strip is effectively prevented from being processed and hardened in the tinning process, the yield strength of the welding strip is remarkably reduced, and the rolling quality of the circular welding strip in the production process is finally effectively ensured.

The utility model discloses in the preferred embodiment, through-hole 6 is seted up at the guide pulley body center, and is equipped with the bearing in the through-hole 6. The arrangement of the bearing in the guide wheel body to realize the rotation of the guide wheel and the limitation of the axial displacement of the bearing by the clamp spring belong to the conventional design of the person skilled in the art, and are not described herein again.

It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Many main bars circle welds guide pulley for area tinning machine, its characterized in that, including the guide pulley body, guide pulley body outer lane has guide way (1) that supplies wire rod (9) to pass through, guide way (1) is V type structure, first inclined plane (11) and second inclined plane (12) bilateral symmetry on guide way (1), just first inclined plane (11) with be equipped with a plurality of bar grooves (2), a plurality of on second inclined plane (12) relatively bar groove (2) set up along the circumferencial direction equipartition.

2. The guide wheel for the multi-main-grid circular welding strip tinning machine according to claim 1, wherein a groove (3) is formed in the bottom of the guide groove (1), the cross section of the groove (3) is of a U-shaped structure, and two end parts of the opening of the groove are respectively located on the first inclined surface (11) and the second inclined surface (12).

3. The guide wheel for the multi-main-grid circular welding strip tinning machine as claimed in claim 1, wherein the first inclined surface (11) and the second inclined surface (12) are coated with wear-resistant paint.

4. The guide wheel for the multi-main-grid circular welding strip tinning machine as claimed in claim 1, wherein a plurality of lightening holes (4) are formed in the guide wheel body, and the lightening holes (4) are uniformly and annularly arrayed.

5. The guide wheel for the multi-main-grid circular welding strip tinning machine as claimed in claim 1, wherein two symmetrical side surfaces of the guide wheel body are provided with annular grooves (5).

6. The guide wheel for the multi-main-grid circular solder strip tinning machine as claimed in claim 1, wherein a first included angle formed by the first inclined surface (11) and the second inclined surface (12) is an acute angle.

7. The guide wheel for the multi-main-grid circular welding strip tinning machine according to claim 6, wherein the guide groove (1) is in the shape of an isosceles triangle, and the length of the opposite side of the first included angle is greater than or equal to the groove depth of the guide groove (1).

8. The guide wheel for the multi-main-grid circular solder strip tinning machine as claimed in claim 6, wherein the wire (9) is tangent to the first inclined surface (11) to form a first contact point (7), the wire (9) is tangent to the second inclined surface (12) to form a second contact point (8), and the first contact point (7) and the second contact point (8) are connected with the center of the wire (9) to form a central angle which is greater than or equal to the first included angle.

9. The guide wheel for the multi-main-grid circular welding strip tinning machine according to claim 1, wherein a through hole (6) is formed in the center of the guide wheel body, and a bearing is arranged in the through hole (6).