An auxiliary device for a metal sawing machine, a method of use and applications

Abstract

The application relates to an auxiliary device of a metal sawing machine, a use method and application, and the auxiliary device comprises a turnover plate mechanism and a clamping mechanism, the number of the turnover plate mechanism and the clamping mechanism is both two, the turnover plate mechanism comprises a supporting plate, a turnover plate front base, a turnover plate rear base, a turnover plate support and a turnover plate hydraulic cylinder, the supporting plate comprises a plane plate and a side baffle, the side baffle is arranged on one side of the plane plate close to a sawing device, the turnover plate front base and the turnover plate rear base are fixedly arranged on the ground, the bottom end of the turnover plate support is hinged to the turnover plate front base, the top end is fixedly connected with the bottom surface of the plane plate, the cylinder bottom end of the turnover plate hydraulic cylinder is hinged to the turnover plate rear base, the piston rod top end is hinged to the bottom surface of the plane plate, and the turnover plate hydraulic cylinder drives the supporting plate to turn over upwards or downwards; the clamping mechanism is outside the side of the supporting plate away from the sawing device. The application reduces the vibration of a saw blade during sawing, guarantees the relative stability during sawing, reduces the abrasion of the saw blade, and prolongs the service life of the saw blade.

Description

Technical Field

[0001] This invention relates to the field of sawing equipment, and more specifically, to an auxiliary device for a metal saw, its method of use, and its application. Background Technology

[0002] In the bar rolling process, high-temperature bars are mostly cut into sections using metal saws. However, the clamping device on the metal saw is located outside the saw's layout area, far from the saw blade and the cutting point. This results in a large distance between the front and rear roller conveyors of the metal saw, creating a space without any device. Although this device facilitates the falling of sawing waste such as cut ends off the production line, this arrangement brings many problems to the production process.

[0003] When the bar passes through the empty section of the sawing zone, the lack of guiding devices such as roller cover plates can easily cause production accidents such as the bar head drilling into the bottom and sides of the sawing roller. More seriously, the bar is in a cantilevered state with the front and rear rollers as fulcrums during sawing. When the metal saw machine moves laterally and cuts downwards, it generates lateral thrust and downward pressure on the bar, which can easily cause the end to bend downwards and result in the problem of the bar tip bending.

[0004] As the sawing depth increases, the saw blade buckling phenomenon intensifies, which can easily cause vibration of the saw blade, reduce the service life of the saw blade, and cause large sawing burrs to form on the saw surface.

[0005] When the bar is close to being cut off, the cut end or tail of the bar that should be cut off will tear instantly due to its own weight, resulting in a large sawing flash, edge binding, and poor effect.

[0006] Therefore, it is necessary to propose an auxiliary device to solve the above problems. Summary of the Invention

[0007] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an auxiliary device, a method of use and an application for a metal saw, which reduces the vibration of the saw blade during sawing, ensures relative stability during sawing, reduces the wear of the saw blade and improves the service life of the saw blade.

[0008] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0009] An auxiliary device for a metal saw includes a flipping mechanism and a clamping mechanism. There are two flipping mechanisms, which are respectively located in front of and behind the saw blade and are adapted to the front and rear conveyor rollers of the sawing area. There are two clamping mechanisms, which are located outside the two flipping mechanisms and cooperate with the flipping mechanisms to clamp the bar.

[0010] The flipping mechanism includes a pallet, a front flipping base, a rear flipping base, a flipping support, and a flipping hydraulic cylinder. The pallet includes a flat plate and a side baffle. The side baffle is located on the side of the flat plate near the sawing equipment. The front flipping base and the rear flipping base are fixedly mounted on the ground. The bottom end of the flipping support is hinged to the front flipping base, and the top end is fixedly connected to one side of the bottom surface of the flat plate. The bottom end of the cylinder body of the flipping hydraulic cylinder is hinged to the rear flipping base, and the top end of the piston rod of the flipping hydraulic cylinder is hinged to the other side of the bottom surface of the flat plate. The flipping hydraulic cylinder drives the pallet to flip up or down.

[0011] The clamping mechanism is located on the outer side of the pallet away from the sawing equipment, and includes a steel pushing base and a steel pushing hydraulic cylinder, a push rod and a push head disposed on the steel pushing base. The piston rod of the steel pushing hydraulic cylinder is connected to the push rod, and the push head is disposed at the end of the push rod near the flipping mechanism.

[0012] In one embodiment, the clamping mechanism further includes a stroke sensing device disposed on the pusher head and facing the bar.

[0013] In one embodiment, the stroke sensing device includes a steel pipe, a sliding plug, a limiting spring, a sleeve, a retaining ring, a positioning ring, and a metal detector. The push head is detachably connected to the steel pipe, the steel pipe is parallel to the push rod, and the push head has a stepped through-hole along the axial direction of the steel pipe. The end of the steel pipe is connected to one end of the through-hole. The sliding plug is disposed in the through-hole, with one end extending out of the through-hole towards the flip-plate mechanism. A limiting ring is disposed on the circumferential side of the sliding plug to prevent the sliding plug from coming out of the through-hole towards the flip-plate mechanism. The sleeve is disposed in the through-hole and is located between the sliding plug and the steel pipe. The retaining ring is located between the sleeve and the sliding plug, and the other end of the sliding plug can slide through the retaining ring. The limiting spring is disposed between the limiting ring and the retaining ring. The positioning ring is disposed between the sleeve and the steel pipe, and the metal detector passes through the positioning ring and is fixedly connected.

[0014] The steel pipe is provided with a through hole along the axial direction, and the through hole is connected to the through connection hole. The signal source line of the metal detector passes through the through hole.

[0015] In one embodiment, the auxiliary equipment further includes a support mechanism, which includes a support plate, a front support base, a rear support base, a support bracket, and a support hydraulic cylinder. The support plate is located between two support plates and is provided with a U-shaped sawing groove, the opening of which faces the sawing equipment.

[0016] The front support base and the rear support base are fixedly installed on the ground. The bottom end of the support bracket is hinged to the front support base, and the top end is fixedly connected to one side of the bottom surface of the support plate. The bottom end of the cylinder body of the support hydraulic cylinder is hinged to the rear support base, and the top end of the piston rod of the support hydraulic cylinder is hinged to the other side of the bottom surface of the support plate. The support hydraulic cylinder drives the support plate to flip up or down. When the support plate flips up to the limit position, the plane of the top surface of the support plate is flush with the conveying plane of the conveying roller.

[0017] In one embodiment, the auxiliary equipment further includes a sampling mechanism, which includes a guide rail, a transition chute, a sampling trolley, and a drive device. The transition chute is inclinedly disposed above the lower chute and cooperates with the downward-sloping support plate and tray. The guide rail is horizontally disposed on the outer side of the bottom end of the transition chute. The sampling trolley is disposed on the guide rail and the drive device is connected to the sampling trolley.

[0018] In one embodiment, the drive device is a hydraulic cylinder located at the end of the guide rail away from the transition chute, and the piston rod portion of the drive device is connected to the sampling trolley to drive the sampling trolley forward or backward.

[0019] In one embodiment, a guide roller is provided on the side of the conveyor rollers near the sawing equipment to guide the forward movement of the bar stock.

[0020] A method for using an auxiliary device for a metal saw includes the following steps:

[0021] Before the bar enters the sawing area, the push rod of the clamping mechanism retracts, and the hydraulic cylinder of the flipping plate drives the pallet to flip upward until the flat plate is parallel to the conveying plane. After the bar enters the sawing area and stops moving, the clamping mechanism starts and presses the bar against the side baffle through the push head, fixing the bar and sawing it.

[0022] When the bar is being sawn in normal segments, after the sawing is completed, the clamping mechanisms in front of and behind the saw blade retract to their original positions. The bar section in front is conveyed to the next process via the conveyor rollers, while the bar section in the back continues to move forward to the cutting position and stops. The clamping mechanism then clamps and fixes the bar again, waiting for the next cut.

[0023] After the bar head or the cutting tip is used as a sample, the clamping mechanisms in front of and behind the saw blade retract and return to their original positions along the direction of bar movement. The support plate in front of the saw blade tilts down, causing the cut part to roll away from the production line along the inclined flat plate. Then the support plate flips up and resets, and the bar continues to move forward.

[0024] After the bar is cut at the tail or the end of the cut section is used as a sample, the clamping mechanisms in front of and behind the saw blade retract and return to their original positions along the direction of bar movement. The support plate behind the saw blade tilts down, causing the cut part to roll away from the production line along the inclined flat plate. Then the support plate flips up and resets, waiting for the next bar to enter the sawing area.

[0025] An application of auxiliary equipment for a metal saw machine, wherein the aforementioned auxiliary equipment is used in the bar rolling production process.

[0026] In summary, the present invention has the following beneficial effects:

[0027] This invention facilitates stable sawing of bar stock, reduces saw blade vibration during sawing, ensures relative stability during sawing, reduces saw blade wear, reduces saw blade steel consumption per ton, reduces the number of saw blade replacements, lowers sawing costs, and improves production efficiency. The lateral clamping mechanism brings the bar stock close to the sawing equipment before sawing, reducing the idle feed and retraction strokes of the saw blade, shortening the working time of the sawing process, and simultaneously reducing the final scrap diameter of the saw blade, thus increasing the service life of the saw blade. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the present invention;

[0029] Figure 2 yes Figure 1 A schematic diagram of the AA' direction;

[0030] Figure 3 yes Figure 1 A schematic diagram of the BB' direction;

[0031] Figure 4 yes Figure 2 A schematic diagram of the CC' direction;

[0032] Figure 5 yes Figure 1 A magnified diagram of the K position.

[0033] In the diagram: 1. Sawing equipment, 2. Support plate, 3. Front support base, 4. Support bracket, 5. Rear support base, 6. Support hydraulic cylinder, 7. Steel pushing base, 8. Steel pushing hydraulic cylinder, 9. Push rod, 10. Guide rail, 11. Sampling trolley, 12. Transition chute, 13. Drive device, 14. Lower chute, 15. Flat plate, 16. Side baffle, 17. Flip plate hydraulic cylinder, 18. Conveying roller, 19. Guide roller, 20. Push head, 21. Sawing groove, 22. Steel pipe, 23. Signal source line, 24. Through connection hole, 25. Sliding plug, 26. Limiting ring, 27. Limiting spring, 28. Retaining ring, 29. Sleeve, 30. Positioning ring, 31. Metal detector, 32. Through hole. Detailed Implementation

[0034] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] It is worth noting that the directional terms such as "up" and "down" used in this article are all relative to the perspective of the attached figures and are only for the purpose of description. They should not be interpreted as limitations on the technical solutions.

[0036] This invention proposes an auxiliary device for a metal saw, including a flipping mechanism and a clamping mechanism, such as... Figure 1-5 As shown, there are two flipping mechanisms, which are respectively located in front of and behind the saw blade and are adapted to the front and rear conveyor rollers 18 of the sawing area. There are two clamping mechanisms, which are located outside the two flipping mechanisms and cooperate with the flipping mechanisms to clamp the bar, which facilitates the sawing operation.

[0037] like Figure 1 , 2 As shown in Figure 4, the flipping mechanism includes a pallet, a front flipping base, a rear flipping base, a flipping support, and a flipping hydraulic cylinder 17. The pallet includes a flat plate 15 and a side baffle 16. The side baffle 16 is located on the side of the flat plate 15 closest to the sawing device 1, i.e., the cross-section of the pallet parallel to the saw blade is L-shaped. The front flipping base is close to the sawing device 1, and the rear flipping base is away from the sawing device 1. The front flipping base and the rear flipping base are fixedly mounted on the ground. The bottom end of the flipping support is hinged to the front flipping base. The top end is fixedly connected to one side of the bottom surface of the flat plate 15. The bottom end of the cylinder body of the flipping hydraulic cylinder 17 is hinged to the rear base of the flipping plate. The top end of the piston rod of the flipping hydraulic cylinder 17 is hinged to the other side of the bottom surface of the flat plate 15. The flipping hydraulic cylinder 17 drives the pallet to flip up or down. It should be noted that when the pallet flips up to the limit position, the plane of the top surface of the pallet is parallel to the conveying plane of the conveying roller 18, and the plane of the top surface of the pallet is slightly lower than the conveying plane to facilitate the smooth passage of the bar, for example, 3-10cm lower.

[0038] like Figure 1 , 3 As shown in Figure 4, the clamping mechanism is located on the outer side of the pallet away from the sawing device 1, pushing and clamping the bar towards the side baffle 16.

[0039] In one embodiment, the clamping mechanism includes a steel pushing base 7 and a steel pushing hydraulic cylinder 8, a push rod 9 and a push head 20 disposed on the steel pushing base 7. The piston rod of the steel pushing hydraulic cylinder 8 is connected to the push rod 9, and the push head 20 is disposed at one end of the push rod 9 near the flipping mechanism.

[0040] like Figure 1As shown, in order to detect whether the clamping mechanism has moved into place, the clamping mechanism also includes a stroke sensing device, which is disposed on the push head 20 and faces the bar, and is used to detect whether the push head 20 has moved into place.

[0041] In one embodiment, the travel sensing device includes a steel pipe 22, a metal sliding plug 25, a limiting spring 27, a sleeve 29, a retaining ring 28, a positioning ring 30, and a metal detector 31, such as Figure 5 As shown, the push head 20 is detachably connected to the steel pipe 22, for example, by a threaded connection. The steel pipe 22 is parallel to the push rod 9. The push head 20 has a stepped through-hole 24 along the axial direction of the steel pipe 22. The end of the steel pipe 22 is connected to one end of the through-hole 24. The inner diameter of the through-hole 24 facing the flipping mechanism is the smallest, and the inner diameter of the end facing the steel pipe 22 is the largest. The sliding plug 25 is disposed in the through-hole 24, and one end extends out of the through-hole 24 towards the flipping mechanism. The circumferential side of the sliding plug 25... A limiting ring 26 is provided to prevent the sliding plug 25 from coming out of the through connection hole 24 towards the flip mechanism. The sleeve 29 is provided in the through connection hole 24 and is located between the sliding plug 25 and the steel pipe 22. The retaining ring 28 is located between the sleeve 29 and the sliding plug 25. The other end of the sliding plug 25 can slide through the retaining ring 28. The limiting spring 27 is provided between the limiting ring 26 and the retaining ring 28. The positioning ring 30 is provided between the sleeve 29 and the steel pipe 22. The metal detector 31 passes through the positioning ring 30 and is fixedly connected.

[0042] It is easy to understand that the inner diameter of the retaining ring 28 is greater than or equal to the outer diameter of the end of the sliding plug 25, and less than the outer diameter of the limiting ring 26, so as to prevent the sliding plug 25 from completely passing through the retaining ring 28.

[0043] The working principle of the travel sensing device is as follows: When the pusher head 20 is not close to the bar, under the action of the limit spring 27, the sliding plug 25 extends as far as possible inside the pusher head 20, maximizing the distance between the sliding plug 25 and the metal detector 31; when the pusher head 20 contacts the bar, the sliding plug 25 retracts, gradually reducing the distance between it and the metal detector 31; when the pusher head 20 holds the bar against the side baffle 16, the sliding plug 25 retracts to its maximum distance, minimizing the distance between it and the metal detector 31. This allows for monitoring of the bar clamping process, preventing the pusher rod 9 from extending too far and damaging the bar surface. It is easy to understand that the metal detector 31 is a conventional proximity switch for metal materials.

[0044] Furthermore, the steel pipe 22 is provided with a through hole 32 along the axial direction, the through hole 32 is connected to the through connection hole 24, and the signal source line 23 of the metal detector 31 passes through the through hole 32.

[0045] This invention also proposes a method for using the auxiliary equipment, as follows:

[0046] Before the bar enters the sawing area, the push rod 9 of the clamping mechanism retracts, and the flipping hydraulic cylinder 17 drives the pallet to flip upward until the flat plate 15 is parallel to the conveying plane. After the bar enters the sawing area and stops moving, the clamping mechanism is activated, and the pushing hydraulic cylinder 8 drives the push rod 9 to extend towards the bar. The push head 20 presses the bar against the side baffle 16. Since the flipping mechanism and the clamping mechanism are located in the front and rear areas of the saw blade, they can effectively fix the bar and facilitate sawing.

[0047] When the bar is being sawn in normal segments, after the sawing is completed, the clamping mechanisms in front of and behind the saw blade retract to their original positions. The bar section in front is conveyed to the next process via the conveyor roller 18, while the bar section in the back continues to move forward to the cutting position and stops. The clamping mechanism then clamps and fixes the bar again, waiting for the next cut.

[0048] After the bar head or cutting tip is used as a sample, the clamping mechanisms in front of and behind the saw blade retract and return to their original positions along the bar's forward direction. The support plate in front of the saw blade tilts down, causing the cut part to roll along the inclined flat plate 15 to the side of the production line. Then the support plate flips up and resets, and the bar continues to move forward.

[0049] After the bar is cut at the tail or the end of the cut section is used as a sample, the clamping mechanisms in front of and behind the saw blade retract and return to their original positions along the direction of bar movement. The support plate behind the saw blade tilts down, causing the cut part to roll along the inclined flat plate 15 to the side of the production line. Then the support plate flips up and resets, waiting for the next bar to enter the sawing area.

[0050] It is easy to understand that during normal segmented sawing of bar stock, both the front and rear parts of the bar stock being sawed are on the corresponding conveyor rollers 18, so the pallet will not flip and the cut bar stock enters the next process.

[0051] Furthermore, the auxiliary equipment also includes a support mechanism, which includes a support plate 2, a front support base 3, a rear support base 5, a support bracket 4, and a support hydraulic cylinder 6. The support plate 2 is located between two support plates, and the support plate 2 is provided with a U-shaped sawing groove 21. The opening direction of the sawing groove 21 faces the sawing equipment 1 to avoid affecting the sawing.

[0052] like Figure 1 and 2As shown, the movement of the support mechanism and the flipping mechanism is the same. Specifically, the front support base 3 is close to the sawing device 1, and the rear support base 5 is away from the sawing device 1. The front support base 3 and the rear support base 5 are fixedly set on the ground. The bottom end of the support support 4 is hinged to the front support base 3, and the top end is fixedly connected to one side of the bottom surface of the support plate 2. The bottom end of the cylinder body of the support hydraulic cylinder 6 is hinged to the rear support base 5, and the top end of the piston rod of the support hydraulic cylinder 6 is hinged to the other side of the bottom surface of the support plate 2. The support hydraulic cylinder 6 drives the support plate 2 to flip up or down. When the support plate 2 flips up to the limit position, the plane of the top surface of the support plate 2 is flush with the conveying plane of the conveying roller 18.

[0053] During sawing, the flat plate 15 of the front and rear flipping mechanism does not contact the bar. The bar is fixed in the horizontal direction only by the clamping action of the clamping mechanism and the side baffle 16. The support plate 2 is located directly below the saw blade and provides support for the bar in the vertical direction, which is beneficial to the stability of the bar and reduces the vibration of the saw blade during sawing.

[0054] It is easy to understand that after the sawing operation is completed, whether the front or rear pallet tilts down, the support plate 2 also needs to tilt down to allow the cut material to leave the production line.

[0055] In this invention, the conveying plane of the conveying roller 18 refers to the plane where the lowest point of the bar is located when the bar is above the conveying roller, that is, the plane where the bar contacts the conveying roller 18.

[0056] In one embodiment, the auxiliary equipment further includes a sampling mechanism, which comprises a guide rail 10, a transition chute 12, a sampling trolley 11, and a drive device 13, such as... Figure 1 As shown, the transition chute 12 is inclinedly disposed above the lower chute 14 and cooperates with the downward-sloping support plate 2 and the pallet. The guide rail 10 is horizontally disposed on the outer side of the bottom end of the transition chute 12. The sampling trolley 11 is disposed on the guide rail 10. The driving device 13 is connected to the sampling trolley 11 and drives the sampling trolley 11 to move on the guide rail 10.

[0057] The drive device 13 can be an electric motor drive device 13, a hydraulic cylinder device, or other feasible devices. In this invention, the drive device 13 is preferably a hydraulic cylinder, which is located at the end of the guide rail 10 away from the transition chute 12. The piston rod of the hydraulic cylinder is connected to the sampling trolley 11 to drive the sampling trolley 11 forward or backward.

[0058] It should be noted that the lower chute 14 is a conventional chute section used to collect cutting waste or samples. The sampling mechanism in this invention is designed to separate samples from waste. For example, when waste is generated during head and tail cutting, the sampling trolley 11 moves away from the transition chute 12, and the waste falls directly from the transition chute 12 to the lower chute 14, and then slides into the waste basket, completing the waste collection. During cutting sampling, the bottom end of the transition chute 12 faces the sampling trolley 11, and the sample falls directly into the sampling trolley 11. Subsequently, the sampling trolley 11 moves away from the transition chute 12 and leaves the production line for transport by overhead crane in the workshop. This completes the bar sampling work.

[0059] It should be noted that the guide rail 10 will not obstruct the cutting material from falling into the lower chute 14. Figure 5 The leftmost segment of the guide rail 10 is positioned between the lower chute 14 and the transition chute 12 to show the positional changes of the sampling trolley 11 and the transition chute 12. It is easy to understand that by extending the length of the sampling trolley, even if the end of the guide rail 10 is far from the transition chute 12, one end of the sampling trolley can still be directly below the bottom of the transition chute 12.

[0060] In one embodiment, the conveyor roller 18 is provided with a guide roller 19 on the side near the sawing equipment 1, which guides the forward movement of the bar. It can also be used in conjunction with the side baffle 16 of the flipping mechanism and the clamping mechanism to clamp and fix the bar.

[0061] This invention facilitates stable sawing of bar stock, reduces saw blade vibration during sawing, ensures relative stability during sawing, reduces saw blade wear, reduces saw blade steel consumption per ton, reduces the number of saw blade replacements, lowers sawing costs, and improves production efficiency. The lateral clamping mechanism brings the bar stock close to the sawing equipment 1 before sawing, reducing the idle feed and retraction strokes of the saw blade, shortening the working time of the sawing process, and simultaneously reducing the final scrap diameter of the saw blade, thus improving the service life of the saw blade. The sampling mechanism facilitates sampling in the middle section of the waste chute.

[0062] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An auxiliary device for a metal saw, characterized in that, It includes a flipping mechanism and a clamping mechanism. There are two flipping mechanisms, which are respectively located in front of and behind the saw blade and are adapted to the front and rear conveyor rollers (18) of the sawing area. There are two clamping mechanisms, which are located outside the two flipping mechanisms and cooperate with the flipping mechanisms to clamp the bar. The flipping mechanism includes a pallet, a front flipping base, a rear flipping base, a flipping support, and a flipping hydraulic cylinder (17). The pallet includes a flat plate (15) and a side baffle (16). The side baffle (16) is located on the side of the flat plate (15) near the sawing device (1). The front flipping base and the rear flipping base are fixedly located on the ground. The bottom end of the flipping support is hinged to the front flipping base, and the top end is fixedly connected to one side of the bottom surface of the flat plate (15). The bottom end of the cylinder body of the flipping hydraulic cylinder (17) is hinged to the rear flipping base, and the top end of the piston rod of the flipping hydraulic cylinder (17) is hinged to the other side of the bottom surface of the flat plate (15). The flipping hydraulic cylinder (17) drives the pallet to flip up or down. The clamping mechanism is located on the outer side of the pallet away from the sawing equipment (1), and includes a steel pushing base (7) and a steel pushing hydraulic cylinder (8), a push rod (9) and a push head (20) disposed on the steel pushing base (7). The piston rod of the steel pushing hydraulic cylinder (8) is connected to the push rod (9), and the push head (20) is disposed at the end of the push rod (9) near the flipping mechanism. The clamping mechanism also includes a stroke sensing device, which is mounted on the push head (20) and faces the bar. The stroke sensing device includes a steel pipe (22), a sliding plug (25), a limiting spring (27), a sleeve (29), a retaining ring (28), a positioning ring (30), and a metal detector (31). The push head (20) is detachably connected to the steel pipe (22). The steel pipe (22) is parallel to the push rod (9). The push head (20) has a stepped through-hole (24) along the axial direction of the steel pipe (22). The end of the steel pipe (22) is connected to one end of the through-hole (24). The sliding plug (25) is located inside the through-hole (24), and one end extends from the through-hole (24). The sliding plug (25) extends towards the flip-plate mechanism. A limiting ring (26) is provided on the circumferential side of the sliding plug (25) to prevent the sliding plug (25) from coming out of the through connection hole (24) towards the flip-plate mechanism. The sleeve (29) is provided in the through connection hole (24) and is located between the sliding plug (25) and the steel pipe (22). The retaining ring (28) is located between the sleeve (29) and the sliding plug (25). The other end of the sliding plug (25) can slide through the retaining ring (28). The limiting spring (27) is provided between the limiting ring (26) and the retaining ring (28). The positioning ring (30) is provided between the sleeve (29) and the steel pipe (22). The metal detector (31) passes through the positioning ring (30) and is fixedly connected. The steel pipe (22) is provided with a through hole (32) along the axial direction. The through hole (32) is connected to the through connection hole (24). The signal source line (23) of the metal detector (31) passes through the through hole (32).

2. The auxiliary equipment as described in claim 1, characterized in that, It also includes a support mechanism, which includes a support plate (2), a front support base (3), a rear support base (5), a support bracket (4), and a support hydraulic cylinder (6). The support plate (2) is located between two support plates. The support plate (2) is provided with a U-shaped sawing groove (21). The opening direction of the sawing groove (21) faces the sawing equipment (1). The front support base (3) and the rear support base (5) are fixedly set on the ground. The bottom end of the support bracket (4) is hinged to the front support base (3), and the top end is fixedly connected to one side of the bottom surface of the support plate (2). The bottom end of the cylinder body of the support hydraulic cylinder (6) is hinged to the rear support base (5), and the top end of the piston rod of the support hydraulic cylinder (6) is hinged to the other side of the bottom surface of the support plate (2). The support hydraulic cylinder (6) drives the support plate (2) to flip up or down. When the support plate (2) flips up to the limit position, the plane of the top surface of the support plate (2) is flush with the conveying plane of the conveying roller (18).

3. The auxiliary equipment as described in claim 1, characterized in that, It also includes a sampling mechanism, which includes a guide rail (10), a transition chute (12), a sampling trolley (11), and a drive device (13). The transition chute (12) is inclined above the lower chute (14) and cooperates with the support plate (2) and the pallet in a downward state. The guide rail (10) is horizontally arranged on the outer side of the bottom end of the transition chute (12). The sampling trolley (11) is arranged on the guide rail (10). The drive device (13) is connected to the sampling trolley (11).

4. The auxiliary equipment as described in claim 3, characterized in that, The drive device (13) is a hydraulic cylinder, which is located at one end of the guide rail (10) away from the transition chute (12). The piston rod of the drive device (13) is connected to the sampling trolley (11) to drive the sampling trolley (11) forward or backward.

5. The auxiliary equipment as described in claim 1, characterized in that, The conveyor roller (18) is provided with a guide roller (19) on the side near the sawing equipment (1) to guide the forward movement of the bar.

6. A method of using an auxiliary device for a metal saw as described in any one of claims 1-5, characterized in that, Includes the following steps: Before the bar enters the sawing area, the push rod (9) of the clamping mechanism retracts, and the flipping hydraulic cylinder (17) drives the pallet to flip upward until the flat plate (15) is parallel to the conveying plane. After the bar enters the sawing area and stops moving, the clamping mechanism starts and presses the bar against the side baffle (16) through the push head (20) to fix the bar and perform sawing. When the bar is being sawn in normal segments, after the sawing is completed, the clamping mechanisms in front of and behind the saw blade retract to their original positions. The bar section in front is conveyed to the next process through the conveying roller (18), and the bar section in the back continues to move forward to the cutting position and then stops. The clamping mechanism clamps and fixes the bar again, waiting for the next cut. After the bar head or cutting tip is used as a sample, the clamping mechanisms in front of and behind the saw blade retract and return to their original positions along the bar's forward direction. The support plate in front of the saw blade tilts down, causing the cut part to roll away from the production line along the inclined flat plate (15). Then the support plate flips up and resets, and the bar continues to move forward. After the bar is cut off at the tail or the end of the cut is used as a sample, the clamping mechanisms in front of and behind the saw blade retract and return to their original positions along the direction of bar movement. The pallet behind the saw blade tilts down, causing the cut part to roll away from the production line along the inclined flat plate (15). Then the pallet flips up and resets, waiting for the next bar to enter the sawing area.

7. The application of an auxiliary device for a metal saw as described in any one of claims 1-5, characterized in that, The auxiliary equipment is used in the bar rolling production process.

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