A device for cleaning the oxide scale at the weld of a pick

Abstract

The application relates to a pick weld scale cleaning device, and belongs to the technical field of pick production. The device comprises a rack, a rotating assembly and a cleaning assembly. The rotating assembly and the cleaning assembly are both installed on the rack. The rotating assembly comprises a rotating driving element, a mounting plate, a main rotating disc and a plurality of auxiliary rotating discs. The mounting plate is installed on the rack. The main rotating disc and the auxiliary rotating discs are both installed on the mounting plate. The main rotating disc and the auxiliary rotating discs can rotate around their own central axes on the mounting plate. The auxiliary rotating discs are circumferentially distributed on the outside of the main rotating disc. The main rotating disc is used for driving the auxiliary rotating discs to rotate. The auxiliary rotating discs are provided with fixing grooves for inserting picks. The rotating driving element is installed on the rack and connected with the main rotating disc. The rotating driving element is used for driving the main rotating disc to rotate around its own central axis on the mounting plate. The cleaning assembly is used for cleaning the picks inserted on the auxiliary rotating discs. The application has the effect of reducing the economic cost required for removing the pick scale.

Description

TECHNICAL FIELD

[0001] The application relates to the field of tooth production, in particular to a tooth weld joint oxide scale cleaning device. BACKGROUND

[0002] The tooth is a device applied to a mining and tunneling machine, comprising a tooth head and a tooth base body, the tooth head is often connected with the tooth base body by brazing, at present, after the tooth head and the tooth base body are brazed, the temperature of the weld joint is high, which accelerates the oxidation reaction rate of the tooth weld joint, and more oxide scales are generated, if the excessive oxide scales are not cleaned in time, the material loss of the weld joint between the tooth head and the tooth base body will occur in the subsequent quenching process, and the connection quality between the tooth head and the tooth base body will be reduced.

[0003] At present, the method for removing the oxide scales of the tooth is usually to perform acid pickling on the tooth to remove the oxide scales, however, the acid pickling method needs to use a large amount of acid, alkali and water resources, and the oxide scales cannot be recycled due to the dissolution in the acid solution, which causes great resource waste, and after the acid pickling, the acid solution needs to be treated to avoid the influence of the discharged acid solution on the environment, and the cost is high. SUMMARY

[0004] In order to reduce the cost required for removing the oxide scales on the tooth, the application provides a tooth weld joint oxide scale cleaning device.

[0005] The tooth weld joint oxide scale cleaning device provided by the application adopts the following technical scheme:

[0006] The tooth weld joint oxide scale cleaning device comprises a rack, a rotating assembly and a cleaning assembly, the rotating assembly and the cleaning assembly are both installed on the rack, the rotating assembly comprises a rotating driving piece, a mounting plate, a main rotating disc and a plurality of auxiliary rotating discs, the mounting plate is installed on the rack, the main rotating disc and the plurality of auxiliary rotating discs are both installed on the mounting plate, the main rotating disc and the plurality of auxiliary rotating discs can rotate around their own center axes on the mounting plate, the auxiliary rotating discs are circumferentially distributed on the outer side of the main rotating disc, the main rotating disc is used to drive the auxiliary rotating discs to rotate, the auxiliary rotating disc is provided with a fixing groove for inserting the tooth, the rotating driving piece is installed on the rack and connected with the main rotating disc, the rotating driving piece is used to drive the main rotating disc to rotate around its own center axis on the mounting plate, and the cleaning assembly is used to clean the tooth inserted on the auxiliary rotating disc.

[0007] By adopting the technical scheme, the plurality of brazing completed picks are placed in the fixing grooves on the plurality of sub rotating discs respectively, then the main rotating disc is driven to rotate on the mounting plate around the center axis thereof by starting the rotary driving member, and then the plurality of sub rotating discs are driven to move and rotate, at this time, the pick placed on the sub rotating disc rotates around the center axis of the sub rotating disc together with the sub rotating disc, and the cleaning assembly grinds the pick rotating together with the sub rotating disc at this time to remove the oxide skin on the pick, in the whole process, the pick does not need to be cleaned by using acid liquid, and the removed oxide skin can be recycled, thereby achieving the effect of reducing the cost required for removing the oxide skin on the pick.

[0008] Optionally, the cleaning assembly comprises a cleaning disc and a lifting member, the lifting member is installed on the rack and located above the main rotating disc, and the cleaning disc is installed on the lifting member and abuts against the pick of the sub rotating disc when the pick needs to be cleaned.

[0009] By adopting the technical scheme, the cleaning disc for cleaning the oxide skin on the pick is lifted by the lifting member, so that the cleaning disc can move away from the plurality of sub rotating discs when it does not need to be cleaned, thereby increasing the distance between the cleaning disc and the sub rotating disc, and facilitating the pick to be placed on the sub rotating disc.

[0010] Optionally, the cleaning disc comprises a connecting part and a cleaning part, the connecting part is connected with the lifting member, and the cleaning part abuts against the outer wall of the pick of the sub rotating disc close to the side of the main rotating disc.

[0011] By adopting the technical scheme, the cleaning disc comprises the connecting part and the cleaning part, the connecting part connects the cleaning part with the lifting member, and the cleaning part abuts against the outer wall of the pick close to the side of the main rotating disc, so that the cleaning part cleans the oxide skin at the welding seam of the pick by direct contact.

[0012] Optionally, the main rotating disc is provided with a pick placing and taking disc for placing and taking the pick on the sub rotating disc, the pick placing and taking disc is detachably connected with the main rotating disc, the pick placing and taking disc is provided with a plurality of supporting parts corresponding to the positions of the fixing grooves on the plurality of sub rotating discs.

[0013] By adopting the technical scheme, the pick on each sub rotating disc can be placed and taken uniformly by the pick placing and taking disc, without placing the pick on the sub rotating disc one by one, thereby increasing the efficiency of placing and taking.

[0014] Optionally, the main rotating disc is provided with a placing groove, the pick placing and taking disc is provided with a collecting part matched with the placing groove, and the placing groove is provided with a ball abutting against the outer wall of the collecting part.

[0015] By adopting the technical scheme, the placing groove is arranged on the main rotating disc, the collecting part matched with the placing groove is arranged on the taking and placing disc, and the ball is arranged in the placing groove and abuts against the outer wall of the collecting part, so that when the main rotating disc rotates under the driving of the rotating driving element, the taking and placing disc does not rotate with the main rotating disc.

[0016] Optionally, the taking and placing disc is provided with a discharge port at the collecting part, the discharge port is provided with an end cover, and the main rotating disc is provided with an accommodating groove at a position corresponding to the end cover in the placing groove, so that when the taking and placing disc is placed on the main rotating disc, the end cover is located in the accommodating groove.

[0017] By adopting the technical scheme, the accommodating groove is used for accommodating the end cover, so that when the taking disc is placed on the main rotating disc, only the ball contacts the taking disc, the possibility that the main rotating disc drives the taking disc to rotate together due to the large contact area between the main rotating disc and the taking disc is reduced, and the end cover is used for taking out the accumulated oxide skin in the collecting part on the taking disc to recycle the oxide skin after the oxide skin is accumulated in the collecting part by the cleaning part.

[0018] Optionally, the side wall of the main rotating disc is provided with main transmission teeth which are distributed in the circumferential direction of the side wall of the main rotating disc, the side wall of the auxiliary rotating disc is provided with auxiliary transmission teeth which are distributed in the circumferential direction of the side wall of the auxiliary rotating disc, and the auxiliary transmission teeth are engaged with the main transmission teeth.

[0019] By adopting the technical scheme, the main transmission teeth which are distributed in the circumferential direction of the side wall of the main rotating disc are arranged on the side wall of the main rotating disc, the auxiliary transmission teeth which are distributed in the circumferential direction of the side wall of the auxiliary rotating disc are arranged on the side wall of each auxiliary rotating disc, and the auxiliary transmission teeth are engaged with the main transmission teeth, so that when the main rotating disc rotates, the auxiliary rotating disc can be driven to rotate.

[0020] Optionally, the auxiliary rotating disc is provided with a plurality of positioning units, each positioning unit is arranged at the root of the auxiliary transmission tooth, the positioning unit comprises a pushing rod, a spring and a stop roller, the center axis of the stop roller is perpendicular to the center axis of the auxiliary rotating disc, the auxiliary rotating disc is provided with a cavity, one end of the pushing rod passes through the cavity and is connected with the stop roller, the stop roller is located in the fixed groove, the other end of the pushing rod is located at the root of the auxiliary transmission tooth and used for abutting against the tooth top of the main transmission tooth, the spring is located in the cavity and is sleeved on the pushing rod, the part of the pushing rod located in the cavity is provided with a limiting portion, one end of the spring is connected with the limiting portion, and the other end of the spring abuts against the side wall of the cavity close to the fixed groove.

[0021] By adopting the above technical solution, when the main drive gear and the auxiliary rotating gear mesh, the tooth tip of the main drive gear will push the push rod located at the tooth root of the auxiliary drive gear, thereby pushing the push rod out through the stop roller located in the fixed groove. This causes the stop roller to abut against the part of the cutting tooth located in the fixed groove, thus preventing the cutting tooth from being driven by the cleaning part on the cleaning disc and rotating on the auxiliary rotating disc when it is cleaned by the cleaning part. This effectively restricts the rotation of the cutting tooth on the auxiliary rotating disc. The spring will cause the stop roller to reset when the push rod is not abutted by the main drive gear, so that the tooth tip of the main drive gear can always push the push rod. Since the central axis of the stop roller is perpendicular to the central axis of the auxiliary rotating disc, when the cutting tooth is located in the fixed groove, its up and down movement will drive the stop roller to rotate around its own central axis, thereby realizing the removal of the cutting tooth in the fixed groove.

[0022] In summary, this application includes at least the following beneficial technical effects:

[0023] 1. By setting a main rotating disk, a secondary rotating disk, and a cleaning component on the frame, the secondary rotating disk is used to place the cutting teeth to be cleaned at the weld seam, while the main rotating disk is used to drive the secondary rotating disk to rotate, which in turn drives the cutting teeth to rotate together. This allows the cleaning component to clean the oxide scale on the cutting teeth circumferentially at the weld seam. Since no acid solution is needed in the whole process, the removed oxide scale can be centrally processed, and there is no need to treat the acid solution, thus achieving the effect of reducing the economic cost required for oxide scale removal.

[0024] 2. By setting up a pick-and-place disc, the cutting teeth on each auxiliary rotating disc can be picked up and placed uniformly, without having to place the cutting teeth one by one on the auxiliary rotating disc, which increases the efficiency of the cutting teeth loading and unloading on the auxiliary rotating disc. Attached Figure Description

[0025] Figure 1 This is a perspective schematic diagram of an oxide scale removal device for a cutting tooth weld according to an embodiment of this application;

[0026] Figure 2 yes Figure 1 The left view;

[0027] Figure 3 yes Figure 2 A schematic diagram showing the connection between the plate and the main rotating plate after cutting along point AA;

[0028] Figure 4 yes Figure 1 A three-dimensional schematic diagram of the rotating component;

[0029] Figure 5 This is a schematic diagram of the structure of the three positioning units;

[0030] 1, rack; 2, rotating assembly; 3, cleaning assembly; 4, rotating driving piece; 5, mounting plate; 6, main rotating disc; 7, auxiliary rotating disc; 8, fixing groove; 9, cleaning disc; 10, lifting piece; 11, connecting part; 12, cleaning part; 13, taking and placing disc; 14, supporting part; 15, placing groove; 16, ball; 17, discharge port; 18, end cover; 19, containing groove; 20, main transmission tooth; 21, auxiliary transmission tooth; 22, positioning unit; 23, pushing rod; 24, spring; 25, stop roller; 26, cavity; 27, limiting part; 28, cutting tooth; 29, collecting part. DETAILED DESCRIPTION

[0031] The above description is made in conjunction with the accompanying drawings Figures 1-5 The application is further described in detail.

[0032] The embodiments of the application disclose a cutting tooth welding seam scale cleaning device, which refers to Figure 1 and Figure 2 , comprising a rack 1, a rotating assembly 2 and a cleaning assembly 3, the rotating assembly 2 and the cleaning assembly 3 are both mounted on the rack 1, and the cleaning assembly 3 is located above the rotating assembly 2.

[0033] Referring to Figure 2 , Figure 3 and Figure 4 , the rotating assembly 2 comprises a rotating driving piece 4, a mounting plate 5, a main rotating disc 6 and a plurality of auxiliary rotating discs 7, wherein the mounting plate 5 is mounted on the rack 1, the main rotating disc 6 and the plurality of auxiliary rotating discs 7 are both mounted on the upper surface of the mounting plate 5 and can rotate around their own central axes, each auxiliary rotating disc 7 is located outside the main rotating disc 6 and is distributed in a circle around the central axis of the main rotating disc 6, the main transmission tooth 20 is arranged on the peripheral wall of the main rotating disc 6, and the auxiliary transmission tooth 21 meshing with the main transmission tooth 20 is arranged on the peripheral wall of the auxiliary rotating disc 7; when the main rotating disc 6 rotates around the central axis, each auxiliary rotating disc 7 also rotates together; the side of the main rotating disc 6 close to the mounting plate 5 is vertically provided with a rotating rod coaxial with the main rotating disc 6, the rotating rod vertically penetrates through the mounting plate 5 and is mounted with a driven wheel, and the rotating driving piece 4 is a driving motor; the rotating driving piece 4 is mounted on the rack 1, a driving wheel is mounted on the output shaft of the rotating driving piece 4, and the driving wheel and the driven wheel are connected through a belt transmission to realize the rotation of the main rotating disc 6 on the mounting plate 5.

[0034] The fixing groove 8 for inserting the cutting tooth 28 is arranged on the upper surface of the auxiliary rotating disc 7, and the fixing groove 8 is coaxial with the auxiliary rotating disc 7, so that when the cutting tooth 28 is inserted into the fixing groove 8, the cutting tooth 28 rotates around the central axis of the auxiliary rotating disc 7 under the driving of the main rotating disc 6.

[0035] The cleaning assembly 3 comprises a cleaning disc 9 and a lifting member 10, the lifting member 10 is an electric push rod, the lifting member 10 is installed on the rack 1, the cleaning disc 9 comprises a fixedly connected connecting part 11 and a cleaning part 12, the connecting part 11 is fixedly connected with the movable end of the lifting member 10, and the cleaning part 12 abuts against the weld close to the side of the cutting tooth 28 on the main rotating disc 6 after the lifting member 10 is lowered, which makes the cutting tooth 28 placed on the secondary rotating disc 7 rotate together with the secondary rotating disc 7 when the main rotating disc 6 drives the secondary rotating disc 7 to rotate, and at this time, the cutting tooth 28 rotates on the secondary rotating disc 7 relative to the cleaning part 12 on the cleaning disc 9 under the action of the cleaning part 12, so that the oxide skin at the weld is cleaned in the circumferential direction.

[0036] With reference to Figure 3 And Figure 5 In order to prevent the cutting tooth 28 from not rotating on the secondary rotating disc 7 when the cleaning part 12 abuts against the cutting tooth 28 during cleaning of the oxide skin on the weld of the cutting tooth 28, a positioning unit 22 is arranged at the tooth root of the secondary transmission tooth 21 on the secondary rotating disc 7, the secondary rotating disc 7 comprises two components connected by bolts (not shown in the figure), and the positioning unit 22 is arranged between the two components, the positioning unit 22 comprises a push rod 23, a spring 24 and a stop roller 25, the stop roller 25 is made of rubber, the outer wall is arc-shaped, the center axis of the stop roller 25 is parallel to the center axis of the secondary rotating disc 7, and the outer wall of the stop roller 25 is matched with the contour of the part of the cutting tooth 28 located in the fixed groove 8.

[0037] The push rod 23 is arranged on the secondary rotating disc 7 in a manner perpendicular to the outer wall of the secondary rotating disc 7, one end of the push rod 23 is located in the fixed groove 8 and connected with the stop roller 25, and the other end of the push rod 23 is located at the tooth root of the secondary transmission tooth 21 and can be pushed by the tooth top of the main transmission tooth 20, and a cavity 26 is arranged in the secondary rotating disc 7, a limiting part 27 is arranged on the part of the push rod 23 located in the cavity 26, the spring 24 is installed in the cavity 26 and sleeved on the push rod 23, one end of the spring 24 is connected with the limiting part 27, and the other end of the spring 24 abuts against the side wall of the fixed groove 8 in the cavity 26.

[0038] When the main transmission tooth 20 is engaged with the secondary transmission tooth 21, the tooth top of the main transmission tooth 20 enters the tooth root of the secondary transmission tooth 21 and pushes the push rod 23 to move along its central axis. At this time, the spring 24 in the cavity 26 is compressed, and the stop roller 25 is pushed out and abuts against the outer wall of the cutting tooth 28, so that the cutting tooth 28 can rotate with the secondary rotating disc 7. Since the central axis of the stop roller 25 is perpendicular to the central axis of the secondary rotating disc 7, the cutting tooth 28 can only rotate with the secondary rotating disc 7 in the fixed groove 8 after being abutted by the stop roller 25, and cannot rotate spontaneously. At the same time, the cutting tooth 28 can be placed in or taken out of the fixed groove 8 by rotating the stop roller 25 around its central axis.

[0039] Referring to Figure 3 and Figure 4 In order to improve the feeding and discharging efficiency of the cutting tooth 28, a taking and placing disc 13 is arranged on the upper surface of the main rotating disc 6. The taking and placing disc 13 is provided with circumferentially distributed supporting portions 14 corresponding to the positions of the fixed grooves 8 on each secondary rotating disc 7. The supporting portions 14 are used to support the cutting tooth 28, so as to realize the taking and placing of the cutting tooth 28 on the secondary rotating disc 7.

[0040] In order to prevent the taking and placing disc 13 from rotating with the main rotating disc 6, a placing groove 15 is arranged on the main rotating disc 6, and a collecting portion 29 adapted to the placing groove 15 is arranged on the taking and placing disc 13. The collecting portion 29 is located in the placing groove 15, and a plurality of circumferentially distributed rolling balls 16 are arranged in the placing groove 15 on the main rotating disc 6. When the main rotating disc 6 rotates, the taking and placing disc 13 cannot rotate with the main rotating disc 6 by abutting against the outer wall of the collecting portion 29 on the taking and placing disc 13. At the same time, the oxide skin cleaned from the cutting tooth 28 can also be swept into the collecting portion 29 for subsequent centralized cleaning.

[0041] Further, the part of the taking and placing disc 13 located in the placing groove 15 is provided with a discharge port 17. The discharge port 17 is connected with an end cover 18 by threaded cooperation. A containing groove 19 is arranged at the bottom of the placing groove 15. When the taking and placing disc 13 is placed in the placing groove 15 on the main rotating disc 6, the end cover 18 is located in the containing groove 19. When the main rotating disc 6 rotates, the outer wall of the end cover 18 does not contact the main rotating disc 6, so the taking and placing disc 13 does not rotate with the main rotating disc 6. After the oxide skin on the cutting tooth 28 is cleaned, the oxide skin on the taking and placing disc 13 is swept into the collecting portion 29 on the taking and placing disc 13. Then, the taking and placing disc 13 is taken off the main rotating disc 6, and the end cover 18 is removed from the discharge port 17. The oxide skin in the collecting portion can be collected and treated subsequently.

[0042] The implementation principle of the embodiment of the present application is that each pick 28 is first placed in the supporting portion 14 on the taking and placing disc 13, and then the placing disc is placed on the main rotating disc 6, at this time, the outer wall of the collecting portion on the placing disc abuts against the ball 16 in the placing groove 15 on the main rotating disc 6, and each pick 28 on the supporting portion 14 is inserted into the fixing groove 8 on the auxiliary rotating disc 7, the rotating drive 4 is started, the main rotating disc 6 starts to rotate and drives each auxiliary rotating disc 7 to rotate together, then the lifting member 10 is started, the lifting member 10 drives the cleaning disc 9 to descend, so that the peripheral wall of the cleaning disc 9 abuts against the weld of the pick 28, with the rotation of the auxiliary rotating disc 7, the pick 28 rotates relative to the cleaning disc 9, so that the cleaning disc 9 grinds the weld of the pick 28, and the oxide skin on the weld of the pick 28 is cleaned.

[0043] When the oxide skin cleaning is completed, the lifting member 10 drives the cleaning disc 9 to ascend, and the rotating drive 4 stops working, since the cleaning portion 12 abuts against the pick 28 on the side close to the main rotating disc 6, most of the cleaned oxide skin will fall on the taking and placing disc 13, then the oxide skin falling on the taking and placing disc 13 is swept into the collecting portion on the taking and placing disc 13, the pick 28 on each auxiliary rotating disc 7 is taken off through the taking and placing disc 13, then the end cover 18 is opened from the discharge port 17, and the collection of the oxide skin is completed.

[0044] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A device for cleaning oxide scale at the weld seam of a cutting tooth, characterized in that: The assembly includes a frame (1), a rotating component (2), and a cleaning component (3). Both the rotating component (2) and the cleaning component (3) are mounted on the frame (1). The rotating component (2) includes a rotating drive (4), a mounting plate (5), a main rotating disk (6), and multiple auxiliary rotating disks (7). The mounting plate (5) is mounted on the frame (1). The main rotating disk (6) and the multiple auxiliary rotating disks (7) are all mounted on the mounting plate (5). Both the main rotating disk (6) and the multiple auxiliary rotating disks (7) can rotate around their own central axis on the mounting plate (5). Each auxiliary rotating disk (7) is circumferentially distributed outside the main rotating disk (6). The main rotating disk (6) drives each auxiliary rotating disk (7) to rotate. The auxiliary rotating disks (7) are provided with... A fixing slot (8) for inserting cutting teeth; the rotary drive (4) is mounted on the frame (1) and connected to the main rotating disk (6); the rotary drive (4) is used to drive the main rotating disk (6) to rotate around its own central axis on the mounting plate (5); the cleaning assembly (3) is used to clean the cutting teeth inserted on each of the auxiliary rotating disks (7); the cleaning assembly (3) includes a cleaning disc (9) and a lifting component (10); the lifting component (10) is mounted on the frame (1) and located above the main rotating disk (6); the cleaning disc (9) is mounted on the lifting component (10); when it is necessary to clean the cutting teeth on the auxiliary rotating disks (7), the cleaning disc (9) abuts against the weld seam of the cutting teeth; a pick-and-place disc (13) is provided on the upper surface of the main rotating disk (6). The pick-and-place plate (13) is provided with a support part (14) that is circumferentially distributed and corresponds one-to-one with the position of the fixing groove (8) on each of the auxiliary rotating plates (7). The support part (14) is used to support the cutting teeth (28) so as to realize the pick-and-place of the cutting teeth (28) on the auxiliary rotating plates (7). The main rotating disk (6) is provided with main drive teeth (20) on its side wall. The main drive teeth (20) are circumferentially distributed on the side wall of the main rotating disk (6). The auxiliary rotating disk (7) is provided with auxiliary drive teeth (21) on its side wall. The auxiliary drive teeth (21) are circumferentially distributed on the side wall of the auxiliary rotating disk (7). The auxiliary drive teeth (21) mesh with the main drive teeth (20). The auxiliary rotating disk (7) is provided with a plurality of positioning units (22), each of which is located at the root of the auxiliary transmission gear (21). Each positioning unit (22) includes a push rod (23), a spring (24), and a stop roller (25). The central axis of the stop roller (25) is perpendicular to the central axis of the auxiliary rotating disk (7). A cavity (26) is provided inside the auxiliary rotating disk (7). One end of the push rod (23) passes through the cavity (26) and is connected to the stop roller (25). The push rod (23) is located in the fixed groove (8), and the other end of the push rod (23) is located at the root of the auxiliary transmission tooth (21) for abutting against the tooth tip of the main transmission tooth (20). The spring (24) is located in the cavity (26) and sleeved on the push rod (23). The part of the push rod (23) located in the cavity (26) is provided with a limiting part (27). One end of the spring (24) is connected to the limiting part (27), and the other end of the spring (24) abuts against the side wall of the cavity (26) near the fixed groove (8).

2. The oxide scale removal device for the weld seam of a cutting tooth according to claim 1, characterized in that: The cleaning disc (9) includes a connecting part (11) and a cleaning part (12) that are fixedly connected. The connecting part (11) is connected to the lifting member (10), and the cleaning part (12) abuts against the outer wall of the auxiliary rotating disc (7) on the side of the cutting teeth near the main rotating disc (6).

3. The oxide scale removal device for the weld seam of a cutting tooth according to claim 1, characterized in that: The main rotating disk (6) is provided with a placement groove (15), and the pick-and-place disk (13) is provided with a collection part (29) adapted to the placement groove (15). A ball (16) is provided in the placement groove (15), and the ball (16) abuts against the outer wall of the collection part (29).

4. The oxide scale removal device for the weld seam of a cutting tooth according to claim 3, characterized in that: The loading and unloading plate (13) is provided with a discharge port (17) located at the collection part (29), and an end cap (18) is provided on the discharge port (17). A receiving groove (19) is provided in the placement groove (15) on the main rotating plate (6) corresponding to the position of the end cap (18). The end cap (18) and the receiving groove (19) are connected by a plug-in engagement.

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