Welding wire grinding device

Abstract

The utility model provides a welding wire grinding device, including a turntable, a wire passing mechanism, and two rotating shafts. The two rotating shafts are wound with abrasive belts. The wire passing mechanism is located outside the abrasive belt. The wire passing mechanism includes a semi-cylindrical support plate coaxial with the turntable. The support plate is installed on the turntable. A module is respectively provided at the front and rear ends of the support plate. The two modules are respectively provided with a die hole coaxial with the support plate for the wire to pass through. A mounting groove is provided at the axis position of the support plate. A plurality of guide blocks are provided in the mounting groove. The top surface of the guide block is provided with an arc groove directly facing the abrasive belt. The arc grooves of the guide blocks are of the same size and correspond to the die hole. The arc groove and the die hole are coaxial. In the utility model, a plurality of guide blocks are provided on the support plate to support the wire for welding wire drawing. When grinding and removing rust and oxide scale of the wire, the abrasive belt presses the wire inward. Since the guide blocks have a force acting on the wire locally, the surface of the wire is unevenly stressed, so that the oxide scale layer on the surface is broken, which is convenient for the oxide scale layer to fall off, and the efficiency of removing the oxide scale layer of the wire is improved.

Description

Technical Field

[0001] The utility model belongs to the field of welding wire production, in particular to a welding wire grinding device. Background Art

[0002] Due to long-term storage, rust and scale are generated on the surface of the wire used for welding wire drawing. Before drawing the welding wire, the wire needs to be descaled and rusted. Currently, the industry mostly uses pickling, alkali washing and other processes to remove rust and scale. In the pickling process, the wire needs to be placed in an acidic solution to remove the scale through acidolysis chemical reaction. The pickling process not only consumes a large amount of acid, but also produces a large amount of pickling waste liquid. The wastewater needs to be treated subsequently, resulting in increased production costs.

[0003] To solve this problem, technicians in this field have developed a belt grinder for grinding wire to remove oxide scale and rust. The grinder includes a turntable, a sanding belt, a rotating shaft and a wire-passing mechanism. The wire-passing mechanism is located on the outside of the sanding belt and includes a semi-cylindrical support plate and a module. The module is provided with a die hole. A strip guide plate is embedded in the center axis of the support plate. An arc groove is provided at the center of the top surface of the strip guide plate. The arc groove faces the sanding belt. The wire crosses the die hole and the arc groove, and the side of the wire away from the arc groove is close to the sanding belt. The turntable drives the wire-passing mechanism to rotate, and the sanding belt moves around the rotating shaft and rotates with the turntable at the same time. That is, the sanding belt rotates around the wire to grind the surface of the wire to remove the oxide scale and rust.

[0004] However, in actual production, it is found that the oxide scale on the wire surface is completely removed by belt grinding, which affects production efficiency. Utility Model Content

[0005] In view of this, the utility model aims to provide a welding wire grinding device to quickly remove the oxide scale on the surface of the wire used for welding and drawing, so as to ensure the surface quality of the wire.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] A welding wire grinding device comprises a turntable, a wire passing mechanism arranged at the center of the turntable, two rotating shafts arranged on the turntable, and an abrasive belt wound by the two rotating shafts, wherein the wire passing mechanism is located outside the abrasive belt, a hole is arranged at the center of the turntable, the wire passing mechanism comprises a semi-cylindrical support plate which is coaxial with the turntable and has a central angle of no more than 180°, the support plate is installed on the turntable, a module is respectively arranged at the front and rear ends of the support plate, the two modules are respectively provided with a die hole which is coaxial with the support plate and for the wire to pass through, an installation groove is arranged at the axial center position of the support plate, a plurality of guide blocks are arranged in the installation groove, a circular arc groove which is opposite to the abrasive belt is arranged on the top surface of the guide block, the circular arc grooves of all the guide blocks are of the same size and correspond to the die hole, and the circular arc groove and the die hole are coaxial.

[0008] Furthermore, a guide hole is provided at the bottom of the installation groove between every two adjacent guide blocks.

[0009] Furthermore, the support plate is a semi-cylindrical structure with a central angle of 90° to 150°, and the guide block is a semi-circular ring structure with the same central angle as that of the support plate.

[0010] Furthermore, a pressure plate is provided on the left and right sides of the support plate respectively, and the lower positions of the left and right sides of the guide block abut against the inner sides of the two pressure plates.

[0011] Furthermore, a pressure cover is fixed to the front end of the support plate by screws, and the module at the front end of the support plate is tightly pressed between the pressure cover and the support plate, and the pressure cover is provided with a wire passing hole.

[0012] Furthermore, a flange portion is provided at the rear end of the support plate, and a template at the rear end of the support plate is embedded in an outer end surface of the flange portion.

[0013] Compared with the prior art, the welding wire grinding device described in the utility model has the following advantages:

[0014] (1) In the utility model, a plurality of guide blocks are arranged on the support plate to support the wire for welding wire drawing. When grinding and removing rust and oxide scale of the wire, the abrasive belt presses the wire inward. Since the guide blocks exert force on the wire locally, the surface of the wire is unevenly stressed, causing the oxide scale layer on the surface to break, making it easier to fall off the oxide scale layer, thereby improving the efficiency of removing the oxide scale layer of the wire.

[0015] (2) In the utility model, the arrangement of the guide holes on the support plate allows some scale debris and rust to be quickly discharged, thereby reducing the content of scale debris and rust between the wire and the abrasive belt, improving the grinding effect of the abrasive belt and the wire, and reducing dust dispersion and pollution to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0017] Figure 1 This is a front view of a welding wire grinding device according to an embodiment of the utility model;

[0018] Figure 2 This is the front view of the wire passing mechanism in this embodiment;

[0019] Figure 3 This is a top view of the wire-passing mechanism in this embodiment;

[0020] Figure 4 for Figure 2 AA view of the .

[0021] Description of reference numerals:

[0022] 1- support plate; 11- installation groove; 12- guide hole; 13- flange; 2- guide block; 21- arc groove; 3- pressure plate; 31- inclined surface structure; 4- module; 41- die hole; 5- pressure cover; 6- turntable; 7- abrasive belt; 8- wire passing mechanism; 9- rotating shaft. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0024] like Figure 1 As shown, a welding wire grinding device includes a turntable 6, a hole is provided at the center of the turntable 6, a wire passing mechanism 8 for the wire to pass through is provided at the center of the turntable 6, a rotating shaft 9 is provided on both sides of the wire passing mechanism 8, the two rotating shafts 9 are wrapped with abrasive belts 7, the abrasive belts 7 move around the two rotating shafts 9, and the wire at the position of the wire passing mechanism 8 is ground to remove the oxide scale. The turntable 6 rotates, driving the abrasive belt 7 to rotate around the wire, and the wire is descaled in the circumferential direction. This structure is a common structure for grinding and removing oxide scale of wires, and will not be described in detail here.

[0025] like Figure 2 , Figure 3 and Figure 4 The wire passing mechanism 8 includes a semi-cylindrical support plate 1 which is coaxially arranged with the turntable 6 and has a central angle of no more than 180°, that is, the cross section of the support plate 1 is a sector-shaped surface structure with a central angle of no more than 180°, and preferably, the central angle is 90° to 150°. The axis of the support plate 1 is the center of the sector. The front and rear ends of the support plate 1 are respectively provided with modules 4, and the two modules 4 are respectively provided with die holes 41 coaxial with the support plate 1 for the wire to pass through. The axis of the support plate 1 is provided with a mounting groove 11, and the mounting groove 11 runs through the front and rear end surfaces of the support plate 1. The mounting groove 11 is preferably an arc groove coaxial with the support plate. A plurality of guide blocks 2 are arranged at equal intervals in the mounting groove 11, and the top surface of the guide block 2 is provided with an arc groove 21 facing the sanding belt 7, and the arc groove 21 is coaxial with the support plate 1. The arc groove 21 of the guide block 2 is the same size and corresponds to the die hole 41.

[0026] The principle of the utility model is that the wire passes through the die hole 41 of the module 4 at the front end of the support plate 1, crosses the circular arc grooves 21 of all the guide blocks 2, and then passes through the die hole 41 of the module 4 at the rear end of the support plate 1, and finally passes through the hole of the turntable 6. When the wire passes through the support plate 1, the abrasive belt 7 presses the wire at this position, and the wire is in close contact with the circular arc groove 21. A force is generated between the bottom of the circular arc groove 21 and the wire. Since the force is only located at the contact position between the wire and the guide block 2, rather than being evenly distributed along the straight line direction of the wire, the uneven force on the wire can easily cause the oxide layer on the surface of the wire to break and fall off, thereby improving the speed and effect of oxide removal and ensuring the surface quality of the wire.

[0027] In the utility model, the bottom of the installation groove 11 is provided with a guide hole 12 between each two adjacent guide blocks 2. This structure allows part of the scale debris and rust to be quickly discharged into the ash storage tank, reduces the content of scale debris and rust between the wire and the sand belt 7, improves the sanding effect of the sand belt and the wire, and reduces dust scattering and pollution to a certain extent.

[0028] In the utility model, a pressing plate 3 is respectively provided on the left and right sides of the support plate 1 by screws, and the lower positions of the left and right sides of the guide block 2 abut against the inner sides of the two pressing plates 3, and the guide block 2 is further fixed in the circumferential direction by the two pressing plates 3, thereby improving the installation stability of the guide block 2. Preferably, the upper surface of the pressing plate 3 and the corresponding position of the guide block 2 are inclined structures 31, so that the thickness of the edge of the pressing plate 3 pressing the guide block 2 is smaller than the thickness of the pressing plate 3 itself, avoiding the sand belt 7, and providing space for the sand belt 7 to wrap and grind the wire.

[0029] In the utility model, the front end of the support plate 1 is screwed to fix the pressure cover 5, the module 4 at the front end of the support plate 1 is tightly pressed between the pressure cover 5 and the support plate 1, and the pressure cover 5 is provided with a wire passing hole.

[0030] In the present invention, a flange portion 13 is provided at the rear end of the support plate 1 , and a template 4 at the rear end of the support plate 1 is embedded in the outer end surface of the flange portion 13 , and the support plate 1 and the turntable 6 are connected and fixed by the flange portion 13 .

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding wire grinding device, comprising a turntable (6), a wire passing mechanism (8) arranged at the center of the turntable (6), two rotating shafts (9) arranged on the turntable (6), and an abrasive belt (7) wound around the two rotating shafts (9), wherein the wire passing mechanism (8) is located outside the abrasive belt (7), and a hole is arranged at the center of the turntable (6), characterized in that: The wire passing mechanism (8) comprises a semi-cylindrical support plate (1) which is coaxial with the turntable (6) and has a central angle of no more than 180°. The support plate (1) is mounted on the turntable (6). A module (4) is respectively provided at the front and rear ends of the support plate (1). The two modules (4) are respectively provided with a die hole (41) coaxial with the support plate (1) for the wire to pass through. A mounting groove (11) is provided at the axis position of the support plate (1). A plurality of guide blocks (2) are provided in the mounting groove (11). The top surface of the guide block (2) is provided with an arc groove (21) which is directly opposite to the sanding belt (7). The arc grooves (21) of all the guide blocks (2) are of the same size and correspond to the die hole (41). The arc groove (21) and the die hole (41) are coaxial.

2. A welding wire grinding device according to claim 1, characterized in that: A guide hole (12) is provided at the bottom of the installation groove (11) between every two adjacent guide blocks (2).

3. A welding wire grinding device according to claim 1, characterized in that: The support plate (1) is a semi-cylindrical structure with a central angle of 90° to 150°, and the guide block (2) is a semi-circular ring structure with the same central angle as that of the support plate (1).

4. A welding wire grinding device according to claim 3, characterized in that: A pressing plate (3) is provided on the left and right sides of the support plate (1), respectively, and the lower parts of the left and right sides of the guide block (2) are in contact with the inner sides of the two pressing plates (3).

5. A welding wire grinding device according to claim 1, characterized in that: The front end of the support plate (1) is screwed with a pressure cover (5), the module (4) at the front end of the support plate (1) is tightly pressed between the pressure cover (5) and the support plate (1), and the pressure cover (5) is provided with a wire hole.

6. A welding wire grinding device according to claim 1, characterized in that: The rear end of the support plate (1) is provided with a flange portion (13), and the module (4) at the rear end of the support plate (1) is embedded in the outer end surface of the flange portion (13).

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