Tensioning device for quenching and tempering production line of bimetal band saw blade

Abstract

The invention relates to the technical field of quenching and tempering production, in particular to a tensioning device for a bimetal band saw blade quenching and tempering production line, which comprises a mounting plate, and a first guide assembly, a second guide assembly, a first tensioning assembly and a second tensioning assembly which are arranged on the mounting plate, the first tensioning assembly comprises a first tensioning roller, a first connecting frame and a first supporting piece; the first tensioning roller is rotationally connected with the first connecting frame, the first supporting piece is connected with the first connecting frame, a first driving piece and a first detecting piece are arranged on the first supporting piece, the first driving piece is connected with the first connecting frame, and the first detecting piece is arranged on the side, close to the first connecting frame, of the mounting plate and used for detecting the position of a saw blade; a first controller is arranged between the first detection piece and the first driving piece, and the first detection piece, the first driving piece and the first controller are electrically connected. The saw blade has the effect of reducing the possibility of safety and product performance problems caused by looseness of the saw blade.

Description

Technical Field

[0001] The present application relates to the technical field of quenching and tempering production, and in particular to a tensioning device for a quenching and tempering production line of a bimetal band saw blade. Background Art

[0002] A bimetal saw blade is a saw blade processed through a series of processes such as electron beam vacuum welding of two steels with different characteristics, followed by annealing, precision rolling, leveling and straightening, milling teeth, tooth spacing, and quenching and tempering treatments.

[0003] During the processing of the quenching and tempering production line of the bimetal band saw blade, when operating the tempering, due to material changes, the saw blade belt may be deformed, resulting in the saw blade being slack during transmission, and there is a risk of accidental ejection of the saw blade, with poor safety performance; moreover, due to the different materials of the saw blade belt, there may be two or more cycles of tempering. During the repeated tempering process, since the saw blade belt is in a slack state, it is difficult to control the attitude of the saw blade belt when entering the furnace, resulting in possible deviation of the tempering effect and affecting the product performance. Summary of the Invention

[0004] In order to reduce the possibility of problems with safety and product performance caused by the saw blade being slack, the present application provides a tensioning device for a quenching and tempering production line of a bimetal band saw blade.

[0005] The tensioning device for a quenching and tempering production line of a bimetal band saw blade provided by the present application adopts the following technical solutions: A tensioning device for a quenching and tempering production line of a bimetal band saw blade, including a mounting plate, a first guiding component, a second guiding component provided on the mounting plate, a first tensioning component and a second tensioning component provided between the first guiding component and the second guiding component. Both the first tensioning component and the second tensioning component are used to tension the saw blade. The first tensioning component includes a first tensioning roller, a first connecting frame and a first supporting member. The first tensioning roller is rotatably connected to the first connecting frame, the first supporting member is connected to the first connecting frame, the first supporting member is used to elastically support the first connecting frame and can drive the first connecting frame to move up and down. A first driving member and a first detecting member are provided on the first supporting member. The first driving member is connected to the first connecting frame and is used to drive the first connecting frame to move up and down. The first detecting member is provided on the side of the mounting plate close to the first connecting frame and is used to detect the position of the saw blade. A first controller is provided between the first detecting member and the first driving member. The first detecting member, the first driving member and the first controller are all electrically connected. The second tensioning component is provided between the first tensioning component and the second guiding component, and the second tensioning component is higher than the first tensioning component.

[0006] By adopting the above technical solution, the saw blade passes through the first guiding assembly, the first tensioning assembly, the second tensioning assembly and the second guiding assembly in sequence. When the first detecting member detects that the saw blade generates slack during transportation, resulting in displacement, the first controller transmits the detection result to the first driving member, and the first driving member drives the first connecting frame to descend, so that the saw blade in contact with the first tensioning roller receives a reaction force, thereby tensioning the saw blade. Similarly, the second tensioning assembly drives the saw blade to rise together by ascending, generating a reaction force again to drive the saw blade to be tensioned, reducing the possibility of problems with safety and product performance caused by the slack of the saw blade.

[0007] Optionally, the second tensioning assembly is horizontally symmetrically arranged with the first tensioning assembly. The second tensioning assembly includes a second tensioning roller, a second connecting member and a second supporting member. The second tensioning roller is rotatably connected to the mounting plate. The second supporting frame is connected to the second connecting member. The second supporting member is used for elastically supporting the second connecting frame and can drive the second connecting frame to lift and lower. A second driving member and a second detecting member are provided on the second supporting member. The second driving member is connected to the second connecting frame and is used for driving the second connecting frame to lift and lower. A second controller is provided between the second detecting member and the second driving member. The second detecting member, the second driving member and the second controller are all electrically connected.

[0008] By adopting the above technical solution, when the second detecting member detects that the saw blade generates slack during transportation, resulting in displacement, the second controller transmits the detection result to the second driving member, and the second driving member drives the second connecting frame to rise, so that the saw blade in contact with the second tensioning roller receives a reaction force, that is, an upward pulling force, thereby tensioning the saw blade.

[0009] Optionally, a first tensioning adjustment assembly is provided between the first tensioning assembly and the second tensioning assembly. The first tensioning adjustment assembly includes an adjustment disk and a first adjustment member. The adjustment disk is slidably connected to the mounting plate, and the sliding direction of the adjustment disk is close to or away from the saw blade. One end of the first adjustment member is connected to the adjustment disk, and the other end is connected to the mounting plate. The first adjustment member is used for driving the adjustment plate to be close to or away from the saw blade.

[0010] By adopting the above technical solution, when the saw blade needs to be tensioned, the first adjustment member drives the adjustment plate to be close to the saw blade, so that the adjustment disk slides along the mounting plate close to the saw blade until the adjustment disk abuts against the saw blade to tension the saw blade.

[0011] Optionally, the first adjusting member includes a mounting disc, a connecting rod, a first mounting bracket, a mounting shaft, and a first adjusting drive. The mounting disc is disposed at an end of the adjusting disc away from the saw blade. The connecting rod is disposed between the mounting disc and the adjusting disc. One end of the connecting rod is rotatably connected to the mounting disc, and the other end is rotatably connected to the adjusting disc. One end of the first mounting bracket is rotatably connected to the mounting disc, and the other end is slidably connected to the mounting plate. The sliding direction of the first mounting bracket is the same as the sliding direction of the adjusting disc. A sliding block is provided between the adjusting disc and the mounting plate. The sliding block slides along the mounting plate, and the sliding direction of the sliding block is towards or away from the saw blade. The adjusting disc is rotatably connected to the sliding block. The mounting shaft is eccentrically disposed at an end of the mounting disc close to the connecting rod. The connecting rod is rotatably connected to the mounting shaft. The first adjusting drive is disposed on the first mounting bracket and coaxially connected to the mounting disc. The first adjusting drive is used to drive the mounting disc to rotate.

[0012] By adopting the above technical solution, when the first adjusting member drives the adjusting plate to approach the saw blade, the first adjusting drive is started. The first adjusting drive drives the mounting disc to rotate. When the mounting disc rotates, it drives the connecting rod to move. The connecting rod drives the adjusting disc to slide along the first mounting bracket towards the saw blade, so that the adjusting disc approaches the saw blade until the adjusting disc abuts against the saw blade, completing the tensioning of the saw blade.

[0013] Optionally, a second adjusting member is provided on the first mounting bracket. The second adjusting member is used to drive the first mounting bracket to move up and down.

[0014] By adopting the above technical solution, the second adjusting member can also adjust the first mounting bracket, facilitating the re-adjustment of the adjusting disc to make the adjusting disc abut tightly against the saw blade.

[0015] Optionally, the second adjusting member includes a second adjusting drive and a third supporting member. Both the second adjusting drive and the third supporting member are disposed at the bottom of the first mounting bracket. The second adjusting drive is used to drive the first mounting bracket to move up and down, and the third supporting member is used to elastically support the first mounting bracket.

[0016] By adopting the above technical solution, when the second adjusting member adjusts the first mounting bracket, the second adjusting drive is started. The second adjusting drive drives the first mounting bracket to rise or fall. The third supporting member improves the stability of the first mounting bracket when it rises or falls.

[0017] Optionally, a second tension adjustment component is further provided between the second tensioning component and the second guiding component. The second tension adjustment component includes a conveying roller, a second mounting bracket, a fourth support member, and a counterweight. The conveying roller is rotatably connected to one end of the second mounting bracket away from the mounting plate, and one end of the second mounting bracket close to the mounting plate is slidably connected to the mounting plate. The sliding direction of the second mounting bracket is the same as that of the first mounting bracket. The fourth support member is provided at the bottom of the second mounting bracket and is used to elastically support the second mounting bracket. A mounting rod is provided at one end of the second mounting bracket away from the fourth support member, and the counterweight is placed on the mounting rod.

[0018] By adopting the above technical solution, when using the second tension adjustment component, the counterweight is placed on the mounting rod, the second mounting bracket descends, and the saw blade wound around the conveying roller is pressed down by gravity to tension the loose saw blade. After removing the counterweight, the third support member jacks up the second mounting bracket to restore the position of the conveying roller.

[0019] Optionally, the first support member, the second support member, the third support member, and the fourth support member have the same structure. The first support member includes a support telescopic rod, a support spring, and a support plate. The support plate is connected to the mounting plate. The support telescopic rod is provided between the first connecting frame and the support plate, and both ends of the support telescopic rod are respectively connected to the first connecting frame and the support plate. The support spring is sleeved on the periphery of the support telescopic rod, and both ends of the support spring are also respectively connected to the first connecting frame and the support plate.

[0020] By adopting the above technical solution, the support telescopic rod guides and supports the first connecting frame, the support spring elastically supports the first connecting frame, and the support plate mounts the support telescopic rod and the support spring.

[0021] Optionally, the first guiding component and the second guiding component have the same structure, and both are a plurality of first guiding rollers arranged at vertical intervals.

[0022] By adopting the above technical solution, a plurality of first guiding rollers facilitate the selection of first guiding rollers with less surface wear for installation and conveying.

[0023] Optionally, a second guiding roller is provided between the first guiding component and the first tensioning component, and the second guiding roller is used to support the saw blade between the first guiding component and the first tensioning component.

[0024] By adopting the above technical solution, the second guiding roller facilitates the transition of the saw blade into the first tensioning component.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting the first tensioning component and the second tensioning component, the first tensioning component and the second tensioning component press against the saw blade in opposite directions, thereby pulling the saw blade. At the same time, the first tensioning adjustment component jacks up the saw blade, and the second tensioning adjustment component presses down the saw blade. Once again, forces in opposite directions can be applied to the saw blade, enabling the saw blade to be tensioned in a wave shape during transportation, increasing the tensioning points and tensioning paths of the saw blade, and reducing the possibility of problems with safety and product performance caused by the saw blade becoming loose. 2. By setting the adjustment disc to an eccentric rotation adjustment method, the saw blade can be tensioned along a curved path, reducing the possibility that the saw blade may pop out in a straight up and down tensioning method. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Figure 1 is the overall structural schematic diagram of the embodiment of the present application; Figure 2 is the overall structural schematic diagram of the tensioning device in the embodiment of the present application; Figure 3 is the partial three-dimensional cross-sectional view of the embodiment of the present application; Figure 4 is the partial structural schematic diagram of the first tensioning component in the embodiment of the present application; Figure 5 is the front view overall structural schematic diagram of the tensioning device in the embodiment of the present application; Figure 6 is the overall structural schematic diagram of the tensioning device from another perspective in the embodiment of the present application; Figure 7 is the overall structural schematic diagram of the hidden installation of the tensioning device in the embodiment of the present application.

[0028] Description of reference numerals: 1, mounting plate; 2, first guiding assembly; 21, first guiding roller; 3, second guiding assembly; 4, first tensioning assembly; 41, first tensioning roller; 42, first connecting frame; 43, first supporting member; 431, supporting telescopic rod; 432, supporting spring; 433, supporting plate; 44, first driving member; 45, first detecting member; 46, first controller; 5, second tensioning assembly; 51, second tensioning roller; 52, second connecting member; 53, second supporting member; 531, second driving member; 532, second detecting member; 533, second controller; 6, first tensioning adjustment assembly; 61, adjusting disc; 62, first adjusting member; 621, mounting disc; 622, connecting rod; 623, first mounting bracket; 624, mounting shaft; 625, sliding block; 63, second adjusting member; 631, second adjusting drive; 632, third supporting member; 7, second tensioning adjustment assembly; 71, conveying roller; 72, second mounting bracket; 73, fourth supporting member; 74, counterweight; 75, mounting rod; 8, second guiding roller. Detailed implementation manners

[0029] The following is further detailed description of the present application in conjunction with the attached Figure 1-7 drawings.

[0030] An embodiment of the present application discloses a tensioning device for a quenching and tempering production line of a bimetal band saw blade. Referring to Figure 1 and

[0031] Referring to Figure 3 and Figure 4, the first tensioning assembly 4 includes a first tensioning roller 41, a first connecting frame 42 and a first support 43. The first tensioning roller 41 is rotatably connected to the first connecting frame 42 through a rotating shaft. The first support 43 is connected to the first connecting frame 42. The first support 43 is used to elastically support the first connecting frame 42 and can drive the first connecting frame 42 to move up and down. A first driving member 44 and a first detecting member 45 are provided on the first support 43. The first driving member 44 is connected to the first connecting frame 42. The first driving member 44 is used to drive the first connecting frame 42 to move up and down. The first driving member 44 is a cylinder; the first detecting member 45 is provided on one side of the mounting plate 1 close to the first connecting frame 42. The first detecting member 45 is used to detect the position of the saw blade. A first controller 46 is provided between the first detecting member 45 and the first driving member 44. The first controller 46 is a PLC controller. The first detecting member 45, the first driving member 44 and the first controller 46 are all electrically connected. The second tensioning assembly 5 is provided between the first tensioning assembly 4 and the second guiding assembly 3. The second tensioning assembly 5 is higher than the first tensioning assembly 4.

[0032] The first tensioning assembly 4 and the second tensioning assembly 5 apply opposite pressing forces to the saw blade, thereby pulling the saw blade. Specifically, the pulling and tensioning process is as follows: when the first detecting member 45 detects that the saw blade is slack and displaced during transportation, the first controller 46 transmits the detection result to the first driving member 44, and starts the first driving member 44. The first driving member 44 drives the first connecting frame 42 to descend, so that the saw blade in contact with the first tensioning roller 41 is subjected to a downward pulling force to tension the saw blade. The second tensioning assembly 5 can also pull the saw blade, but the pulling direction of the second tensioning assembly 5 is opposite to that of the first tensioning assembly 4. By pulling and pressing the saw blade by the first tensioning assembly 4 and the second tensioning assembly 5, the possibility of problems with safety and product performance caused by the saw blade being slack is reduced.

[0033] Refer to Figure 4 and Figure 5 , the second tensioning assembly 5 is horizontally symmetrically arranged with the first tensioning assembly 4. The second tensioning assembly 5 includes a second tensioning roller 51, a second connecting member 52 and a second support 53. The second tensioning roller 51 is rotatably connected to the mounting plate 1 through a rotating shaft. The second support frame is connected to the second connecting member 52. The second support 53 is used to elastically support the second connecting frame and can drive the second connecting frame to move up and down.

[0034] A second driving member 531 and a second detecting member 532 are provided on the second supporting member 53. The second driving member 531 is connected to the second connecting frame. The second driving member 531 is used to drive the second connecting frame to lift and lower. The second driving member 531 is also a cylinder. A second controller 533 is provided between the second detecting member 532 and the second driving member 531. The second controller 533 is also a PLC controller. The second detecting member 532, the second driving member 531 and the second controller 533 are all electrically connected. In the embodiment of the present application, the second tensioning assembly 5 is located directly above the second tensioning roller 51. The first detecting member 45 and the second detecting member 532 are both laser sensors. The first detecting member 45 and the second detecting member 532 are both fixedly connected to the mounting plate 1 near the saw blade path by bolts. In the initial state, when the saw blade is tensioned, the first detecting member 45 and the second detecting member 532 are blocked.

[0035] Further, referring to Figure 5 and Figure 6 , a first tensioning adjustment assembly 6 is provided between the first tensioning assembly 4 and the second tensioning assembly 5. The first tensioning adjustment assembly 6 includes an adjustment disc 61 and a first adjustment member 62. The adjustment disc 61 is slidably connected to the mounting plate 1 in a sliding manner through a slider and chute. The sliding direction of the adjustment disc 61 is close to or away from the saw blade. In this embodiment, it is a vertical sliding. One end of the first adjustment member 62 is connected to the adjustment disc 61, and the other end is connected to the mounting plate 1. The first adjustment member 62 is used to drive the adjustment plate close to or away from the saw blade.

[0036] Specifically, referring to Figure 6 and Figure 7 , the first adjustment member 62 includes a mounting disc 621, a connecting rod 622, a first mounting bracket 623, a mounting shaft 624 and a first adjustment drive. The mounting disc 621 is provided at the end of the adjustment disc 61 away from the saw blade. The connecting rod 622 is provided between the mounting disc 621 and the adjustment disc 61. One end of the connecting rod 622 is rotatably connected to the mounting disc 621, and the other end is rotatably connected to the adjustment disc 61 through a rotating shaft. One end of the first mounting bracket 623 is rotatably connected to the mounting disc 621 through a rotating shaft, and the other end is slidably connected to the mounting plate 1. The sliding direction of the first mounting bracket 623 is the same as the sliding direction of the adjustment disc 61.

[0037] Referring to Figure 6 and Figure 7, a sliding block 625 is welded between the adjusting disc 61 and the mounting plate 1. The sliding block 625 slides along the mounting plate 1, and the sliding direction of the sliding block 625 is close to or away from the saw blade. In this application, it is a vertical slide. The adjusting disc 61 and the sliding block 625 are rotatably connected through a rotating shaft. The mounting shaft 624 is eccentrically welded on the mounting disc 621. The connecting rod 622 and the mounting shaft 624 are rotatably connected through a rotating shaft. The first adjusting drive is arranged on the first mounting bracket 623 and is coaxially connected to the mounting disc 621. The first adjusting drive is used to drive the mounting disc 621 to rotate. The first adjusting drive is a servo motor, and the first adjusting drive is not shown in the figure.

[0038] Refer to Figure 6 and Figure 7 , a second adjusting member 63 is arranged on the first mounting bracket 623. The second adjusting member 63 is used to drive the first mounting bracket 623 to lift. The second adjusting member 63 includes a second adjusting drive 631 and a third supporting member 632. Both the second adjusting drive 631 and the third supporting member 632 are arranged at the bottom of the first mounting bracket 623. The second adjusting drive 631 is used to drive the first mounting bracket 623 to lift. The second adjusting drive 631 is a cylinder. The third supporting member 632 is used to elastically support the first mounting bracket 623.

[0039] Refer to Figure 5 , Figure 6 and Figure 7 , a second tensioning adjustment assembly 7 is further arranged between the second tensioning assembly 5 and the second guiding assembly 3. The second tensioning adjustment assembly 7 includes a conveying roller 71, a second mounting bracket 72, a fourth supporting member 73 and a counterweight 74. The conveying roller 71 is rotatably connected to one end of the second mounting bracket 72 far away from the mounting plate 1 through a rotating shaft. One end of the second mounting bracket 72 close to the mounting plate 1 is slidably connected to the mounting plate 1 in a sliding block and sliding groove connection manner. The sliding direction of the second mounting bracket 72 is the same as the sliding direction of the first mounting bracket 623. The fourth supporting member 73 is arranged at the bottom of the second mounting bracket 72. The fourth supporting member 73 is used to elastically support the second mounting bracket 72. A mounting rod 75 is welded to one end of the second mounting bracket 72 far away from the fourth supporting member 73. The mounting rod 75 is a cylinder. The counterweight 74 is placed on the mounting rod 75. The counterweight 74 is a counterweight ring.

[0040] Refer to Figure 4 and Figure 5 , the first supporting member, the second supporting member, the third supporting member and the fourth supporting member have the same structure. The first supporting member includes a supporting telescopic rod, a supporting spring and a supporting plate. The supporting plate is connected to the mounting plate. The supporting telescopic rod is arranged between the first connecting frame and the supporting plate. Both ends of the supporting telescopic rod are respectively connected to the first connecting frame and the supporting plate. The supporting spring is sleeved on the periphery of the supporting telescopic rod. Both ends of the supporting spring are also respectively connected to the first connecting frame and the supporting plate.

[0041] Refer toFigure 6 , the first guiding component 2 and the second guiding component 3 have the same structure, both of which are a plurality of first guiding rollers 21 arranged vertically at intervals. In this embodiment, two first guiding rollers 21 are provided. A second guiding roller 8 is arranged between the first guiding component 2 and the first tensioning component 4. The second guiding roller 8 is used to support the saw blade between the first guiding component 2 and the first tensioning component 4. The second guiding roller 8 is rotatably connected to the mounting plate 1 through a rotating shaft.

[0042] The implementation principle of the tensioning device of a bimetal band saw blade quenching and tempering production line in an embodiment of the present application is as follows: The saw blade is placed on the second guiding roller 8 via the first guiding roller 21, passes under the first tensioning roller 41 through the second guiding roller 8, then passes around the upper part of the adjusting disk 61 via the first tensioning roller 41, then passes over the second tensioning roller 51 through the adjusting disk 61, and finally passes under the conveying roller 71 in sequence and exits through the first guiding roller 21 in the second guiding component 3. The first tensioning roller 41, the adjusting disk 61, the second tensioning roller 51, and the conveying roller 71 can all tension the saw blade, reducing the possibility of problems with safety and product performance caused by the saw blade becoming loose.

[0043] Unless otherwise defined, the technical terms or scientific terms used in this application should have the ordinary meanings understood by those of ordinary skill in the field to which this application belongs. The words "first", "second", "third", and the like used in the specification and claims of this application do not indicate any order, quantity, or importance, but are only used to distinguish different components. Words such as "a" or "one" do not indicate a quantity limitation, but indicate that there is at least one. Words such as "including" or "comprising" mean that the elements or objects appearing before "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0044] The above are all optional embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A tensioning device for a bimetallic band saw blade quenching and tempering production line, characterized in that: The invention comprises a mounting plate (1), a first guide assembly (2) arranged on the mounting plate (1), a second guide assembly (3), a first tensioning assembly (4) and a second tensioning assembly (5) arranged between the first guide assembly (2) and the second guide assembly (3), wherein the first tensioning assembly (4) and the second tensioning assembly (5) are both used for tensioning a saw blade, the first tensioning assembly (4) comprises a first tensioning roller (41), a first connecting frame (42) and a first support member (43), the first tensioning roller (41) is rotatably connected to the first connecting frame (42), the first support member (43) is connected to the first connecting frame (42), the first support member (43) is used for elastically supporting the first connecting frame (42) and can drive the first connecting frame (42) to rise and fall, and the first support member (43) is used for elastically supporting the first connecting frame (42) and can drive the first connecting frame (42) to rise and fall. A first driving member (44) and a first detecting member (45) are provided on the member (43); the first driving member (44) is connected to the first connecting frame (42); the first driving member (44) is used to drive the first connecting frame (42) to rise and fall; the first detecting member (45) is provided on a side of the mounting plate (1) close to the first connecting frame (42); the first detecting member (45) is used to detect the position of the saw blade; a first controller (46) is provided between the first detecting member (45) and the first driving member (44); the first detecting member (45), the first driving member (44) and the first controller (46) are all electrically connected; the second tensioning assembly (5) is provided between the first tensioning assembly (4) and the second guide assembly (3); the second tensioning assembly (5) is higher than the first tensioning assembly (4).

2. A bimetallic band saw blade quenching and tempering production line tensioning device according to claim 1, characterized in that: The second tensioning assembly (5) is horizontally symmetrically arranged with the first tensioning assembly (4). The second tensioning assembly (5) comprises a second tensioning roller (51), a second connecting member (52) and a second supporting member (53). The second tensioning roller (51) is rotatably connected to the mounting plate (1). The second supporting frame is connected to the second connecting member (52). The second supporting member (53) is used for elastically supporting the second connecting frame and can drive the second connecting frame to rise and fall. The second supporting member (53) is provided with a second driving member (531) and a second detecting member (532). The second driving member (531) is connected to the second connecting frame. The second driving member (531) is used for driving the second connecting frame to rise and fall. A second controller (533) is provided between the second detecting member (532) and the second driving member (531). The second detecting member (532), the second driving member (531) and the second controller (533) are all electrically connected.

3. The tensioning device for a bimetallic band saw blade quenching and tempering production line according to claim 1, characterized in that: A first tensioning adjustment assembly (6) is provided between the first tensioning assembly (4) and the second tensioning assembly (5), the first tensioning adjustment assembly (6) comprising an adjustment disk (61) and a first adjustment member (62), the adjustment disk (61) being slidably connected to the mounting plate (1), the sliding direction of the adjustment disk (61) being close to or away from the saw blade, one end of the first adjustment member (62) being connected to the adjustment disk (61) and the other end being connected to the mounting plate (1), the first adjustment member (62) being used to drive the adjustment plate to move close to or away from the saw blade.

4. A bimetallic band saw blade quenching and tempering production line tensioning device according to claim 3, characterized in that: The first adjusting member (62) comprises a mounting plate (621), a connecting rod (622), a first mounting bracket (623), a mounting shaft (624) and a first adjusting drive, wherein the mounting plate (621) is arranged at one end of the adjusting plate (61) away from the saw blade, the connecting rod (622) is arranged between the mounting plate (621) and the adjusting plate (61), one end of the connecting rod (622) is rotatably connected to the mounting plate (621), and the other end is rotatably connected to the adjusting plate (61), one end of the first mounting bracket (623) is rotatably connected to the mounting plate (621), and the other end is slidably connected to the mounting plate (1), and the sliding direction of the first mounting bracket (623) is aligned with the adjusting plate (61). The sliding directions of the section disks (61) are the same; a sliding block (625) is provided between the adjusting disk (61) and the mounting plate (1); the sliding block (625) slides along the mounting plate (1); the sliding direction of the sliding block (625) is close to or away from the saw blade; the adjusting disk (61) and the sliding block (625) are rotationally connected; the mounting shaft (624) is eccentrically arranged at one end of the mounting disk (621) close to the connecting rod (622); the connecting rod (622) and the mounting shaft (624) are rotationally connected; a first adjusting drive is arranged on a first mounting bracket (623) and is coaxially connected to the mounting disk (621); the first adjusting drive is used to drive the mounting disk (621) to rotate.

5. A bimetallic band saw blade quenching and tempering production line tensioning device according to claim 4, characterized in that: The first mounting bracket (623) is provided with a second adjusting member (63), and the second adjusting member (63) is used to drive the first mounting bracket (623) to rise and fall.

6. A bimetallic band saw blade quenching and tempering production line tensioning device according to claim 5, characterized in that: The second adjustment member (63) comprises a second adjustment drive (631) and a third support member (632); the second adjustment drive (631) and the third support member (632) are both arranged at the bottom of the first mounting bracket (623); the second adjustment drive (631) is used to drive the first mounting bracket (623) to rise and fall; and the third support member (632) is used to elastically support the first mounting bracket (623).

7. The tensioning device for a bimetallic band saw blade quenching and tempering production line according to claim 1, characterized in that: A second tensioning adjustment component (7) is also provided between the second tensioning component (5) and the second guide component (3). The second tensioning adjustment component (7) comprises a conveying roller (71), a second mounting bracket (72), a fourth support member (73) and a counterweight member (74). The conveying roller (71) is rotatably connected to an end of the second mounting bracket (72) away from the mounting plate (1). An end of the second mounting bracket (72) close to the mounting plate (1) is slidably connected to the mounting plate (1). The sliding direction of the second mounting bracket (72) is the same as the sliding direction of the first mounting bracket (623). The fourth support member (73) is provided at the bottom of the second mounting bracket (72). The fourth support member (73) is used to elastically support the second mounting bracket (72). An end of the second mounting bracket (72) away from the fourth support member (73) is provided with a mounting rod (75). The counterweight member (74) is placed on the mounting rod (75).

8. The tensioning device for a bimetallic band saw blade quenching and tempering production line according to claim 1, characterized in that: The first support member (43), the second support member (53), the third support member (632) and the fourth support member (73) have the same structure. The first support member (43) comprises a supporting telescopic rod, a supporting spring and a supporting plate. The supporting plate is connected to the mounting plate (1). The supporting telescopic rod is arranged between the first connecting frame (42) and the supporting plate. The two ends of the supporting telescopic rod are respectively connected to the first connecting frame (42) and the supporting plate. The supporting spring is sleeved around the supporting telescopic rod. The two ends of the supporting spring are also respectively connected to the first connecting frame (42) and the supporting plate.

9. The tensioning device for a bimetallic band saw blade quenching and tempering production line according to claim 1, characterized in that: The first guide assembly (2) and the second guide assembly (3) have the same structure, and both comprise a plurality of first guide rollers (21) arranged vertically at intervals.

10. The tensioning device for a bimetallic band saw blade quenching and tempering production line according to claim 1, characterized in that: A second guide roller (8) is provided between the first guide assembly (2) and the first tensioning assembly (4), and the second guide roller (8) is used to support the saw blade between the first guide assembly (2) and the first tensioning assembly (4).

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