Seam welder copper disc

Abstract

The utility model discloses a seam welder copper disc which comprises a copper disc body and a plurality of rolling units installed on the copper disc body, the rolling units are installed along the side face of the copper disc body, the rolling direction of the rolling units is the same as the moving direction of main ribs, each rolling unit comprises a bearing portion, and the main ribs make contact with the bearing portions. The rolling units are arranged on the copper disc body, friction between the main reinforcements and the copper disc body is reduced, meanwhile, the rolling units corresponding to the reinforcement cages in shape and specification are arranged on the copper disc according to the reinforcement cages of different design specifications and used for containing the main reinforcements, and meanwhile the rolling units are installed on the two sides of the copper disc correspondingly, so that installation of the rolling units is facilitated; the relative positions of the rolling units and the copper disc are arranged, meanwhile, the rib passing grooves are formed, the design size of the reinforcement cage is guaranteed, and the problems that welding with main ribs is not firm, and the overall dimension of cage ribs is small are solved.

Description

Technical Field

[0001] The utility model relates to a copper disc of a seam welder, belonging to the technical field of seam welders. Background Art

[0002] A seam welder is a device used for processing steel reinforcement cages, which welds steel bars by means of rolling and resistance heating. It is mainly used in the manufacturing process of precast concrete structures, such as bridges, columns, beams, etc., to ensure the firmness and reliability of the structure of the steel reinforcement cage.

[0003] The working principle of the seam welder is to place the steel reinforcement cage on a rotating workbench or conveyor belt. Through current conduction and resistance heating, the surface of the steel bar is heated to the welding temperature, and then the welding operation is carried out in an automatic or semi-automatic manner. Usually, the seam welder is equipped with a copper disc as a current conduction medium to help control the current distribution and heat conduction during the welding process, so as to ensure the welding quality and stability.

[0004] However, when processing rectangular or polygonal steel reinforcement cages for square piles or retaining wall piles, etc., during the rolling welding of the steel reinforcement cage, problems often occur such as the wire of the steel reinforcement cage not being firmly welded to the main reinforcement and the outer dimension of the steel reinforcement cage being too small. As a result, when assembling, it is necessary to knock off the rolled welded steel reinforcement cage, and it cannot be reset, which is time-consuming and laborious, seriously affecting the quality of the finished pile and resulting in serious product quality problems. At the same time, in order to ensure the quality of the steel reinforcement cage, the position where the copper disc contacts the main reinforcement is prone to wear, so it needs to be replaced frequently. And if the entire copper disc is replaced, the cost is high and the time for replacing the copper disc is long, seriously affecting the production cycle. Summary of the Invention

[0005] Object of the Invention: To solve the above technical problems, the utility model provides a copper disc of a seam welder, which reduces the wear of the main reinforcement on the copper disc by arranging a rolling unit on the copper disc.

[0006] Technical Solution: A copper disc of a seam welder includes a copper disc body and a plurality of rolling units installed on the copper disc body. The rolling units are installed along the side surface of the copper disc body, and the rolling direction of the rolling units is the same as the moving direction of the main reinforcement. The rolling unit includes a bearing part, and the main reinforcement contacts the bearing part.

[0007] The utility model reduces the friction between the main reinforcement and the copper disc body, reduces wear, and ensures the service life of the copper disc by arranging a rolling unit on the copper disc body. The outer circular surface of the main reinforcement contacts the bearing part; the rolling units are arranged along the side surface of the copper disc body to ensure that the appearance of the steel reinforcement cage meets the design requirements. The surfaces of the copper disc body along the front and back moving directions of the main reinforcement are the front and the back respectively, and the other surfaces are the side surfaces.

[0008] Preferred option: To prevent the main reinforcement bar from falling off the bearing part and avoid its contact with the copper disk body, the rolling unit includes limiting parts arranged on both sides of the bearing part. In the projection plane of the copper disk body along the moving direction of the main reinforcement bar, when the projection plane where the rolling unit is located extends beyond the side edge of the copper disk body, the limiting parts are provided to prevent the main reinforcement bar from falling off the bearing part during movement; in the projection plane of the copper disk body along the moving direction of the main reinforcement bar, when the projection plane where the rolling unit is located is lower than the side edge of the copper disk body, the limiting parts are provided to avoid the outer cylindrical surface of the main reinforcement bar from contacting the copper disk body.

[0009] Preferred option: To guide the main reinforcement bar, it further includes a bar passing groove opened on the copper disk body. The bar passing groove is provided in a set with the rolling unit. In the projection plane of the bearing part along the moving direction of the main reinforcement bar, the projection edge where the bearing part contacts the main reinforcement bar is parallel to the tangent line at the bottom of the bar passing groove, and the outer cylindrical surface of the main reinforcement bar contacts the bar passing groove and the bearing part simultaneously.

[0010] By providing the bar passing groove, when the main reinforcement bar passes through the bar passing groove, it also passes through the bearing part, preventing errors in the moving direction of the main reinforcement bar from causing errors in the dimensions of the steel reinforcement cage.

[0011] Preferred option: To reduce the friction between the main reinforcement bar and the copper disk body, in the projection plane of the bearing part along the moving direction of the main reinforcement bar, the projection edge where the bearing part contacts the main reinforcement bar is higher than the bottom of the bar passing groove.

[0012] Since the bearing part is relatively higher than the bottom of the bar passing groove, it can play a guiding role for the main reinforcement bar while reducing the wear of the copper disk body.

[0013] Preferred option: To prepare a polygonal steel reinforcement cage, the copper disk body is of a polygonal structure, and the rolling units are respectively arranged at the included angles between adjacent side surfaces of the copper disk body. In the projection plane of the rolling unit along the moving direction of the main reinforcement bar, the projection edge where the bearing part contacts the main reinforcement bar is perpendicular to the angular bisector of the included angle.

[0014] Designing the copper disk body as a polygonal structure and arranging rolling units at each corner of the polygonal structure can ensure that when using a rolling welding machine for rolling welding reinforcement, the reinforcement forms a polygonal steel reinforcement cage that meets the design requirements around the main reinforcement bar, improving the finished product rate.

[0015] Preferred option: To prevent the problem of unstable welding caused by wear of the copper disk at the contact position between the copper disk and the steel bar, and to ensure the stability of the steel reinforcement cage, it further includes rolling units arranged on the side surface of the copper disk body. At least one set of rolling units is evenly distributed on each side surface of the copper disk body. In the projection plane of the rolling unit along the moving direction of the main reinforcement bar, the projection edge where the bearing part contacts the main reinforcement bar is parallel to the side edge.

[0016] Rolling units that come into contact with the main bars are respectively arranged on the side edges of the copper disk body, preventing the main bars from wearing the steel reinforcement cage, which may cause the stirrups and main bars to be welded insecurely, resulting in the steel reinforcement cage becoming loose during hoisting and requiring manual repair welding or secondary binding operations.

[0017] Preferred option: To facilitate the installation of the rolling units at the corners and avoid insufficient installation space, the rolling units at the corners between adjacent side surfaces of the copper disk body and the rolling units on the side surfaces of the copper disk body are respectively installed on both sides of the copper disk body.

[0018] Installing the rolling units at the corners and the rolling units on the side surfaces on different sides not only facilitates the installation of the rolling units at the corners but also avoids interference between the rolling units on the side surfaces and the rolling units at the corners due to limited installation space.

[0019] Preferred option: To prepare an oval steel reinforcement cage, the copper disk body is of an oval structure, and rolling units are respectively installed at the two end points of the long axis and the two end points of the short axis of the copper disk body, and at least one set of rolling units is installed on each arc between adjacent end points.

[0020] Preferred option: The material of the copper disk body is iron.

[0021] Preferred option: To ensure that the outer dimensions of the prepared steel reinforcement cage meet the standards, in the projection plane of the rolling unit along the moving direction of the main bar, the projection edge of the bearing part in contact with the main bar is parallel to the tangent of the arc of the copper disk body.

[0022] Preferred option: To facilitate the installation of the rolling unit, an installation part is provided between the rolling unit and the copper disk body, and the rolling unit is connected to the copper disk body through the installation part.

[0023] Beneficial effects: By setting rolling units on the copper disk body, the present utility model reduces the friction between the main bar and the copper disk body. At the same time, for steel reinforcement cages with different design specifications, rolling units corresponding to the shape and specifications of the steel reinforcement cage are set on the copper disk to support the main bar. Meanwhile, the rolling units are respectively installed on both sides of the copper disk, which facilitates the installation of the rolling units, prevents insufficient installation space, sets the relative position of the rolling unit and the copper disk, and at the same time sets a bar passing groove, ensuring the design size of the steel reinforcement cage and avoiding problems such as insecure welding with the main bar and too small outer dimensions of the cage bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0025] Figure 1 It is the overall structure diagram of the copper disk;

[0026] Figure 2 It is the structure assembly diagram of the rolling unit;

[0027] Figure 3 It is the top view of the polygonal copper disk;

[0028] Figure 4 It is the front view of the polygonal copper disk;

[0029] Figure 5 It is the three-dimensional view of the elliptical copper disk;

[0030] Figure 6 It is the front view of the elliptical copper disk. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0033] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath" and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0034] Such as Figures 1 - 4As shown in the figure, a copper disc for a seam welder includes a copper disc body 1 and a number of rolling units 2 installed on the copper disc body 1. The rolling units 2 are installed along the side surface of the copper disc body 1, and the rolling direction of the rolling units 2 is the same as the moving direction of the main reinforcement. The rolling unit 2 includes a bearing part 21, and the main reinforcement contacts the bearing part 21. Compared with the copper disc of the existing seam welder, the copper disc of the seam welder has a long service life. The copper disc of the seam welder can be replaced once every 2 - 3 months instead of once a week, saving production costs.

[0035] By setting the rolling units 2 on the copper disc body 1, the friction between the main reinforcement and the copper disc body 1 is reduced, wear is minimized, and the service life of the copper disc is ensured. The outer cylindrical surface of the main reinforcement contacts the bearing part 21; the rolling units 2 are arranged along the side surface of the copper disc body 1 to ensure that the appearance of the steel reinforcement cage meets the design requirements. The surfaces of the copper disc body 1 along the front - and - back moving direction of the main reinforcement are the front and the back respectively, and the other surfaces are the side surfaces.

[0036] To prevent the main reinforcement from falling off the bearing part 21 and avoid its contact with the copper disc body 1, the rolling unit includes limiting parts 22 arranged on both sides of the bearing part 21.

[0037] In the projection plane of the copper disc body 1 along the moving direction of the main reinforcement, when the projection plane where the rolling unit 2 is located exceeds the side of the copper disc body 1, the limiting part 22 is set to prevent the main reinforcement from falling off the bearing part 21 during movement; in the projection plane of the copper disc body 1 along the moving direction of the main reinforcement, when the projection plane where the rolling unit 2 is located is lower than the side of the copper disc body 1, the limiting part 22 is set to avoid the contact between the outer cylindrical surface of the main reinforcement and the copper disc body 1;

[0038] To guide the main reinforcement, a reinforcement - passing groove 3 is also opened on the copper disc body 1. The reinforcement - passing groove 3 is provided in a set with the rolling unit 2. In the projection plane of the bearing part 21 along the moving direction of the main reinforcement, the projection edge where the bearing part 21 contacts the main reinforcement is parallel to the tangent line at the bottom of the reinforcement - passing groove 3, and the outer cylindrical surface of the main reinforcement contacts both the reinforcement - passing groove 3 and the bearing part 21 simultaneously.

[0039] By setting the reinforcement - passing groove 3, when the main reinforcement passes through the reinforcement - passing groove 3, it also passes through the bearing part 21, preventing the deviation of the moving direction of the main reinforcement and eliminating the need for manual adjustment.

[0040] To reduce the friction between the main reinforcement and the copper disc body 1, in the projection plane of the bearing part 21 along the moving direction of the main reinforcement, the projection edge where the bearing part 21 contacts the main reinforcement is higher than the bottom of the reinforcement - passing groove 3.

[0041] Since the bearing part 21 is relatively higher than the bottom of the reinforcement - passing groove 3, while reducing the wear of the copper disc body 1, it can also play a guiding role for the main reinforcement.

[0042] In order to prepare a polygonal steel reinforcement cage, the copper disk body 1 is of a polygonal structure, the rolling units 2 are respectively arranged at the included angles between adjacent side faces of the copper disk body 1, and in the projection plane of the rolling units 2 along the moving direction of the main reinforcement, the projection edge where the bearing part 21 contacts the main reinforcement is perpendicular to the angular bisector of the included angle.

[0043] The copper disk body 1 is designed to be of a polygonal structure, and the rolling units 2 are arranged at the corners of the polygonal structure. When using a rolling welding machine for rolling and reinforcing, it is ensured that the reinforcement forms a polygonal steel reinforcement cage that meets the design requirements around the main reinforcement, thereby improving the finished product rate.

[0044] It further includes rolling units 2 arranged on the side faces of the copper disk body 1. At least one group of rolling units 2 is evenly distributed on each side face of the copper disk body 1. In the projection plane of the rolling units 2 along the moving direction of the main reinforcement, the projection edge where the bearing part 21 contacts the main reinforcement is parallel to the side edge.

[0045] Rolling units 2 that contact the main reinforcement are respectively arranged on the side edges of the copper disk body 1. After the main reinforcement wears the steel reinforcement cage, the welding between the stirrups and the main reinforcement becomes insecure, resulting in the steel reinforcement cage being loose during the hoisting process, and manual repair welding or tying secondary operations are required.

[0046] In order to facilitate the installation of the rolling units 2 at the included angles and avoid insufficient installation space, the rolling units 2 at the included angles between adjacent side faces of the copper disk body 1 and the rolling units 2 on the side faces of the copper disk body 1 are respectively installed on both sides of the copper disk body 1.

[0047] Installing the rolling units 2 at the included angles and the rolling units 2 on the side faces on different sides not only facilitates the installation of the rolling units 2 at the included angles but also avoids interference between the rolling units 2 on the side faces and the rolling units 2 at the included angles due to limited installation space.

[0048] As Figures 5 - 6 shown, in order to prepare an oval steel reinforcement cage, the copper disk body 1 is of an oval structure, and rolling units 2 are respectively installed at the two end points of the long axis and the two end points of the short axis of the copper disk body 1, and at least one group of rolling units 2 is respectively installed on each arc between adjacent end points.

[0049] In order to ensure that the outer dimensions of the prepared steel reinforcement cage meet the standards, in the projection plane of the rolling units 2 along the moving direction of the main reinforcement, the projection edge where the bearing part 21 contacts the main reinforcement is parallel to the tangent of the arc of the copper disk body 1.

[0050] In order to facilitate the installation of the rolling units 2, an installation part 4 is arranged between the rolling units 2 and the copper disk body 1, and the rolling units 2 are connected to the copper disk body 1 through the installation part 4.

[0051] Iron can be used to replace the original copper disk to save costs.

[0052] The copper disc of the seam welder of the present utility model is mainly applicable to the copper discs of seam welders with shapes other than non-circular shapes, which is convenient for seam welding of non-circular steel cages. For the copper disc with a circular shape, after the main reinforcement and the copper disc are worn, it can be rotated by an angle and seam welded again. However, for the copper disc of the seam welder with a non-circular shape, since the position of the main reinforcement of the steel cage is fixed, the copper disc cannot match the shape of the steel cage after rotation. Therefore, it wears quickly at the fixed position while there is no wear at other positions, resulting in waste.

[0053] Certainly, the copper disc of the seam welder of the present utility model can also be used for steel cages with circular shapes.

[0054] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method part.

[0055] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A copper plate for a seam welding machine, characterized in that: The invention comprises a copper plate body (1) and a plurality of rolling units (2) mounted on the copper plate body (1), wherein the rolling units (2) are mounted along the side of the copper plate body (1), the rolling direction of the rolling units (2) is the same as the moving direction of the main ribs, and the rolling units (2) comprise a bearing portion (21), and the main ribs are in contact with the bearing portion (21).

2. The copper plate for seam welding machine according to claim 1, characterized in that: The rolling unit comprises limiting portions (22) arranged on both sides of the bearing portion (21).

3. The copper plate for seam welding machine according to claim 1, characterized in that: It also includes a rib groove (3) formed on the copper plate body (1), the rib groove (3) and the rolling unit (2) being arranged in a set, and in the projection surface of the bearing portion (21) along the moving direction of the main rib, the projection edge of the bearing portion (21) in contact with the main rib is parallel to the tangent line of the bottom of the rib groove (3), and the outer cylindrical surface of the main rib is in contact with the rib groove (3) and the bearing portion (21) at the same time.

4. The copper plate for seam welding machine according to claim 3, characterized in that: In the projection surface of the bearing portion (21) along the moving direction of the main reinforcement, the projection edge where the bearing portion (21) contacts the main reinforcement is higher than the bottom of the reinforcement groove (3).

5. The copper plate for seam welding machine according to claim 1, characterized in that: The copper plate body (1) is a polygonal structure, the rolling units (2) are respectively arranged at the angles between adjacent side surfaces of the copper plate body (1), and in the projection plane of the rolling unit (2) along the moving direction of the main rib, the projection edge of the bearing portion (21) in contact with the main rib is perpendicular to the bisector of the angle.

6. The copper plate for seam welding machine according to claim 5, characterized in that: It also includes rolling units (2) arranged on the side of the copper plate body (1), at least one group of rolling units (2) being evenly distributed on each side of the copper plate body (1), and in the projection plane of the rolling units (2) along the moving direction of the main rib, the projection edge of the bearing portion (21) in contact with the main rib is parallel to the side edge.

7. The copper plate for seam welding machine according to claim 6, characterized in that: The rolling units (2) at the angles between adjacent side surfaces of the copper plate body (1) and the rolling units (2) on the side surfaces of the copper plate body (1) are respectively mounted on both sides of the copper plate body (1).

8. The copper plate for seam welding machine according to claim 1, characterized in that: The copper disk body (1) is an elliptical structure, and rolling units (2) are respectively installed at two end points of the long axis and two end points of the short axis of the copper disk body (1), and at least one set of rolling units (2) is respectively installed on each arc line between adjacent end points.

9. The copper plate for seam welding machine according to claim 1, characterized in that: The copper plate body (1) is made of iron.

10. The copper plate for seam welding machine according to claim 1, characterized in that: A mounting portion (4) is provided between the rolling unit (2) and the copper disk body (1), and the rolling unit (2) is connected to the copper disk body (1) via the mounting portion (4).

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