Rotary shear flying knife for cutting of tubular electrodes

Abstract

A rotary cutting fly cutter for cutting tubular electrode includes a cutting seat and a mounting seat fixed on the cutting seat, the mounting seat has a rotary surface, a line pressing groove is arranged on the rotary surface along the circumference of the rotary surface, a cutter groove is arranged in the middle of the mounting seat and penetrates the rotary surface, a fly cutter body is fixed in the cutter groove, the fly cutter body has a cutting knife corresponding to the line pressing groove, the length direction of the cutting knife blade is parallel to the rotary center line of the rotary surface, shoulder planes are formed on the fly cutter body on both sides of the cutting knife, the shoulder planes on both sides are in the same plane, and the shoulder planes are higher than the groove bottom of the line pressing groove. The rotary cutting fly cutter for cutting tubular electrode cuts the tubular electrode by rotary extrusion, seals the cut part at the same time, avoids powder leakage at the sealing part of the electrode, is stable in operation, and can improve the processing efficiency of the tubular electrode.

Description

Technical Field

[0001] This utility model relates to the field of tubular welding electrode processing technology, specifically a rotary shearing fly knife for shearing tubular welding electrodes. Background Technology

[0002] Tubular welding electrodes have a tubular shell on the outside and a core filled with welding flux containing highly wear-resistant hard phase particles. During the production of tubular welding electrodes and welding materials, they need to be cut to a certain length according to product technical requirements. Currently, the industry commonly uses heat-treated high-hardness steel shearing knives. However, during shearing, powder leakage is prone to occur at the shearing seal, leading to quality problems and hindering stable, continuous, and efficient production of tubular welding electrode products. Therefore, designing a new structural shearing knife is urgently needed in the production of welding materials. Utility Model Content

[0003] The purpose of this invention is to provide a rotary shearing fly knife for cutting tubular welding electrodes. It cuts the tubular welding electrodes by rotating and squeezing, and simultaneously seals the cut end to prevent powder leakage at the sealing point of the welding electrode. It operates stably and can improve the processing efficiency of tubular welding electrodes.

[0004] The technical solution adopted by this utility model is: a rotary shearing flying knife for shearing tubular welding rods, including a shearing knife holder and a mounting base fixed on the shearing knife holder. The mounting base has a rotating surface, and a pressure groove is provided on the rotating surface along its circumference.

[0005] The mounting base has a tool groove that penetrates the rotating surface in the middle, and a flying knife body is fixed in the tool groove;

[0006] The flying knife body has a shearing blade corresponding to the pressure groove, and the length direction of the shearing blade is parallel to the rotation center line of the rotating surface;

[0007] Shoulder planes are formed on the flying blades on both sides of the shearing blade. The shoulder planes on both sides are on the same plane and are higher than the bottom of the pressure groove.

[0008] As a preferred embodiment, a chamfered surface is provided on the side of the shoulder plane away from the blade in the width direction of the blade.

[0009] As a preferred embodiment, the throwing knife body is provided with clearance grooves that penetrate the chamfered surface on both sides, and the two clearance grooves are located on two opposite sides in the direction of the blade width.

[0010] As a preferred embodiment, the cutting edge is higher than the rotating surface.

[0011] As a preferred embodiment, the cross-section of the pressure groove is semi-circular.

[0012] As a preferred embodiment, the cross-section of the shearing blade is triangular.

[0013] As a preferred embodiment, the length of the shearing blade is at least equal to the width of the crimping groove.

[0014] As a preferred embodiment, the tool groove extends through the entire mounting base and forms an opening on its side, with a side stop for clamping the flying knife body provided on the open side of the mounting base.

[0015] As a preferred embodiment, the side stop includes a side baffle and bolts. The side baffle and the mounting base are provided with corresponding bolt holes, and the corresponding bolt holes are connected by bolts. The side baffle has a clamping part that can extend into the opening and abut against the side of the flying knife body.

[0016] As a preferred embodiment, the shearing blade holder is provided with a connection hole for connecting an external rotating body.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The shoulder plane design in this utility model can increase the force-bearing area during the shearing process and reduce the pressure on the flying knife during the shearing process, thereby improving the service life of the flying knife; at the same time, the reserved shoulder width position can increase the compression area of ​​the welding rod seal, thereby improving the sealing performance of the welding rod seal and solving the problem of leakage of flux core powder from tubular welding rods.

[0019] 2. The semi-circular design of the blade holder in this utility model, along with the setting of the pressure groove, prevents the product from shaking during the cutting process and solves the problem of the product being crushed and scrapped during instantaneous cutting.

[0020] 3. The chamfered surface and clearance groove design can prevent excessive compression of the tubular welding rod during the shearing process, avoiding powder leakage caused by the joint opening; 4. The flying knife body and the knife holder in this utility model are detachable structures, which can be better assembled and replaced according to the change of the diameter of the tubular welding rod, improving the efficiency of product line changeover. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is an overall axonometric view of the present invention;

[0023] Figure 2 This is a front view schematic diagram of the entire utility model;

[0024] Figure 3 This is a front view and top view schematic diagram of the present invention;

[0025] Figure 4 This is a side view of the entire utility model;

[0026] Figure 5 This is a schematic diagram of the axial side of the flying knife body of this utility model;

[0027] Figure 6 This is a front view schematic diagram of the flying knife body of this utility model;

[0028] Figure 7 This is a side view of the throwing knife body of this utility model;

[0029] Figure 8 This is a top view of the flying knife body of this utility model.

[0030] Reference numerals: 1. Shearing blade holder; 101. Connecting hole; 2. Mounting base; 201. Rotating surface; 202. Wire groove; 203. Tool groove; 3. Flying knife body; 301. Shearing blade; 302. Blade; 303. Shoulder plane; 304. Chamfered surface; 305. Clearance groove; 4. Side baffle; 5. Bolt; 6. Clamping part. Detailed Implementation

[0031] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0032] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "a," "an," or "the," etc., used in this utility model patent application specification and claims do not express a quantity limitation, but rather indicate the presence of at least one; the terms "first," "second," and "third," as used herein, should not be considered as a limitation on the order of components, but are merely for distinguishing different components; the terms "comprising" or "including," etc., indicate that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function.

[0033] To more clearly describe the specific structural components of this rotary shearing fly knife used for shearing tubular welding electrodes, see attached... Figure 1-8 This embodiment is described as follows:

[0034] like Figure 1-8As shown, a rotary shearing fly knife for shearing tubular welding rods includes a shearing knife holder 1 and a mounting base 2 fixed on the shearing knife holder 1. The mounting base 2 has a rotating surface 201, and a wire pressing groove 202 is provided on the rotating surface 201 along its circumference. A tool groove 203 penetrating the rotating surface 201 is provided in the middle of the mounting base 2, and a fly knife body 3 is fixed in the tool groove 203. The fly knife body 3 has a shearing blade 301 corresponding to the wire pressing groove 202. The length direction of the blade 302 of the shearing blade 301 is parallel to the rotation center line of the rotating surface 201. Shoulder planes 303 are formed on the fly knife body 3 on both sides of the shearing blade 301. The shoulder planes 303 on both sides are on the same plane, and the shoulder planes 303 are higher than the bottom of the wire pressing groove 202.

[0035] In actual production, shearing blade holders 1 are used in pairs. Two shearing blade holders 1 with flying blade bodies 3 are respectively installed on two external rotating bodies. The tubular welding rod to be sheared passes through the gap between the two external rotating bodies. The external rotating bodies drive the flying blade bodies 3 to rotate relative to each other. The tubular welding rod is cut off by the pressure of the blade 302 of the flying blade body 3. The lower end of the cut welding rod is the cut. A compression plane with a certain width in the axial direction is formed near the cut. During the shearing process, the pressure groove 202 is stuck on the outside of the tubular welding rod to ensure that the welding rod does not shake during the shearing process. The shoulder planes 303 set on both sides of the blade 302 can increase the compression area of ​​the welding rod sealing (so that a certain area of ​​compression plane is formed near the cut of the welding rod), thereby improving the sealing performance of the welding rod sealing and solving the problem of flux leakage of the tubular welding rod.

[0036] See Figure 5-8 To prevent excessive compression of the tubular welding rod during the shearing process, a chamfered surface 304 is provided on the side of the shoulder plane 303 away from the blade 302 in the width direction of the blade 302; furthermore, the flying knife body 3 is provided with relief grooves 305 that penetrate the chamfered surface 304 on both sides, and the two relief grooves 305 are located on two opposite sides in the width direction of the blade 302. This design can prevent powder leakage caused by the joint opening.

[0037] In the above embodiments, the cross-sectional shape and size of the wire groove 202 are designed according to the shape and size of the tubular welding rod. Generally, the cross-section of the wire groove 202 is semi-circular.

[0038] The flying knife body 3 can be made of WC-Co cemented carbide to ensure wear resistance and high toughness, thereby ensuring service life when shearing tubular welding rods.

[0039] See Figure 2-4 Specifically, the cross-section of the shearing blade 301 can be triangular, and the length of the shearing blade 301 is at least equal to the width of the pressure groove 202 to ensure that the shearing width is sufficient; at the same time, the blade 302 can be higher than the rotating surface 201 to ensure that the shearing is in place.

[0040] The mounting base 2 and the flying knife body 3 are connected in a detachable manner, which facilitates the replacement of the flying knife body. The tool groove 203 can pass through the entire mounting base 2 and form an open opening on its side. A side stop is provided on the open opening side of the mounting base 2 for clamping the flying knife body 3. After the flying knife body 3 is installed in the tool groove 203, the flying knife body 3 is clamped and secured by the side stop.

[0041] Specifically, the side baffle includes a side baffle 4 and bolts 5. The side baffle 4 and the mounting base 2 are provided with corresponding bolt holes, and the corresponding bolt holes are connected by bolts 5. The side baffle 4 has a clamping part 6 that can extend into the open opening and abut against the side of the flying knife body 3.

[0042] See Figure 1 The shearing blade holder 1 is provided with a connecting hole 101 for connecting to an external rotating body, and the rotation center line of the rotating surface 201 coincides with the rotation center line of the external rotating body.

[0043] The parts not described in detail in the above embodiments are existing technologies.

[0044] It should be noted that although the present invention has been described through the above embodiments, there may be other various embodiments of the present invention. Without departing from the spirit and scope of the present invention, those skilled in the art can obviously make various corresponding changes and modifications to the present invention, but all such changes and modifications should fall within the scope of protection of the appended claims and their equivalents.

Claims

1. A rotary shearing tool for shearing tubular welding electrodes, characterized in that: It includes a shearing blade holder (1) and a mounting base (2) fixed on the shearing blade holder (1). The mounting base (2) has a rotating surface (201) and a pressure groove (202) is provided on the rotating surface (201) along its circumference. The mounting base (2) has a tool groove (203) that penetrates the rotary surface (201) in the middle, and a flying knife body (3) is fixed in the tool groove (203). The flying knife body (3) has a shearing blade (301) corresponding to the pressure groove (202), and the length direction of the blade (302) of the shearing blade (301) is parallel to the rotation center line of the rotating surface (201); Shoulder planes (303) are formed on the flying knife bodies (3) on both sides of the shearing blade (301). The shoulder planes (303) on both sides are on the same plane, and the shoulder planes (303) are higher than the bottom of the pressure groove (202).

2. The rotary shearing tool for shearing tubular welding electrodes according to claim 1, characterized in that: In the width direction of the blade (302), a chamfered surface (304) is provided on the side of the shoulder plane (303) away from the blade (302).

3. A rotary shearing tool for shearing tubular welding electrodes according to claim 2, characterized in that: The throwing knife body (3) has clearance grooves (305) on both sides that penetrate the chamfered surface (304), and the two clearance grooves (305) are located on two opposite sides in the width direction of the blade (302).

4. A rotary shearing tool for shearing tubular welding electrodes according to claim 1, characterized in that: The cutting edge (302) is higher than the rotating surface (201).

5. A rotary shearing tool for shearing tubular welding electrodes according to claim 1, characterized in that: The cross-section of the pressure groove (202) is semi-circular.

6. A rotary shearing tool for shearing tubular welding electrodes according to claim 1, characterized in that: The cross-section of the shearing blade (301) is triangular.

7. A rotary shearing tool for shearing tubular welding electrodes according to claim 1, characterized in that: The length of the shearing blade (301) is at least equal to the width of the crimping groove (202).

8. A rotary shearing tool for shearing tubular welding electrodes according to claim 1, characterized in that: The tool groove (203) extends through the entire mounting base (2) and forms an opening on its side. A side stop for clamping the flying knife body (3) is provided on the open side of the mounting base (2).

9. A rotary shearing tool for shearing tubular welding electrodes according to claim 8, characterized in that: The side baffle includes a side baffle (4) and a bolt (5). The side baffle (4) and the mounting base (2) are provided with corresponding bolt holes. The corresponding bolt holes are connected by bolts (5). The side baffle (4) has a clamping part (6) that can extend into the open opening and abut against the side of the flying knife body (3).

10. A rotary shearing tool for shearing tubular welding electrodes according to claim 1, characterized in that: The shearing blade holder (1) is provided with a connecting hole (101) for connecting an external rotating body.

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