Board slitting saw mark eliminating equipment system for gypsum board production line

Abstract

The invention relates to the technical field of plasterboards, and discloses a plasterboard production line board slitting saw mark eliminating equipment system which comprises a conveying assembly, a cutting assembly and a cutting assembly. The grinding assembly is used for grinding the cutting and sawing end face of the gypsum board; the grinding assembly comprises two machine bodies arranged on the two sides of the gypsum board, grinding belts are installed on the machine bodies through driving mechanisms, the grinding faces of the grinding belts make sliding contact with the cutting and sawing end face of the gypsum board, and the transmission direction of the grinding belts is opposite to the conveying direction of the gypsum board. According to the grinding device, the grinding assembly is arranged on the gypsum board conveying track to grind the saw marks on the cut and sawed gypsum boards, the grinding assembly mainly adopts the flexible rotating grinding belt as a grinding piece, transmission of the gypsum boards cannot be interfered, the flatness of the saw cutting end faces of the gypsum boards can be improved, and the grinding efficiency is improved. And the appearance quality of the gypsum board is improved.

Description

Technical Field

[0001] The invention relates to the technical field of gypsum boards, and in particular to a gypsum board production line board cutting saw mark elimination equipment system. Background Art

[0002] In the gypsum board production process, the dried boards need to be sawed into the required length by the high-speed saw of the finished product section. When the high-speed saw is used to cut the boards, saw marks will be left on the end surface of the saw. Especially after the saw blade has been used for a period of time, the saw marks left are more obvious and rough, which seriously affects the appearance quality of the board. In the subsequent lamination process, the film layer will also be damaged to a certain extent. However, the life of the saw blade itself is at most 1 / 3 of its length. Replacing it will not only cause great waste but also cause long-term downtime and affect production. A lot of labor costs are consumed in production, and the quality stability cannot be guaranteed. The safety factor of the operating position is poor.

[0003] There is no effective way and equipment to deal with it now. In order to save labor costs, improve the efficiency of slitting saws, improve the safety factor of personnel and reduce safety hazards, the production line urgently needs a set of three-control slitting board rear end saw mark elimination equipment to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a gypsum board production line board cutting saw mark elimination equipment system to solve the technical problem in the prior art that the saw marks formed on the rear end surface of the gypsum board after sawing affect the appearance quality of the gypsum board.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0006] A gypsum board production line board cutting saw mark elimination equipment system, comprising:

[0007] A conveying assembly, wherein the conveying mechanism is used to continuously convey a plurality of gypsum boards;

[0008] A sanding assembly, the sanding assembly is used to sand the sawn end surface of the gypsum board;

[0009] The sanding assembly includes two bodies arranged on both sides of the gypsum board, and a sanding belt is installed on the body through a driving mechanism. The sanding surface of the sanding belt is in sliding contact with the saw end surface of the gypsum board, and the transmission direction of the sanding belt is opposite to the conveying direction of the gypsum board.

[0010] As a preferred solution of the present invention, the driving mechanism includes a driving shaft wheel and a driven shaft wheel rotatably mounted on the machine body, the sanding belt transmission sleeve is arranged on the driving shaft wheel and the driven shaft wheel, and a first motor for driving the driving shaft wheel to rotate is installed on the machine body.

[0011] As a preferred solution of the present invention, a lead screw is provided on the machine body along its length direction, and the lead screw is rotatably mounted on the machine body via a bearing, a second motor for driving the lead screw to rotate is installed on the machine body, and a lead screw nut is threadedly sleeved on the lead screw;

[0012] A rotating rod is fixedly connected to one end of the driven shaft wheel, and the rotating rod coincides with the central axis of the driven shaft wheel. The other end of the rotating rod is rotatably connected to the lead screw nut through a bearing.

[0013] As a preferred solution of the present invention, it also includes an angle adjustment component, and the angle adjustment component is used to drive the body to rotate to change the angle between the sanding belt and the gypsum board.

[0014] As a preferred solution of the present invention, the angle adjustment assembly includes a through hole extending through one end of the body, a column is inserted into the through hole, and the body is rotatably mounted between the column, a support rod is fixedly connected to the other end of the body, and the other end of the support rod is connected to a guide rail for limiting its moving trajectory;

[0015] The machine body is connected with a rotating mechanism, and the rotating mechanism is used to drive the machine body to rotate and swing around the column.

[0016] As a preferred solution of the present invention, the rotating mechanism includes a threaded sleeve, a threaded rod is threadedly inserted into the threaded sleeve, a sliding groove is opened on the body along its length direction, a slider is installed in the sliding groove, and the slider is in sliding contact with the sliding groove, and one end of the threaded rod is rotatably connected to the slider through a connecting piece.

[0017] As a preferred solution of the present invention, the connecting member includes a connecting tube, one end of the threaded rod extends into the connecting tube, and the threaded rod is in sliding contact with the inner wall of the connecting tube, a first spring is arranged between the threaded rod and the inner wall of the connecting tube, and the other end of the connecting tube is rotatably connected to the slider through a pin shaft.

[0018] As a preferred solution of the present invention, a tension monitoring component is provided between the abrasive belts, the tension monitoring component is used to monitor the tension of the abrasive belts, and the tension monitoring component is communicatively connected with an external warning mechanism.

[0019] As a preferred solution of the present invention, the tension monitoring assembly includes a horizontal seat located between the abrasive belts, a sliding seat is arranged in the horizontal seat, and the sliding seat is in sliding contact with the horizontal seat, a pressure sensor is installed in the horizontal seat, and a second spring is arranged between one end of the sliding seat and the pressure sensor;

[0020] The other end of the sliding seat is connected to a push rod, and the other end of the push rod extends outside the horizontal seat, and under the elastic force of the second spring, the push rod always pushes against the side of the grinding belt.

[0021] As a preferred solution of the present invention, a magnetic block is installed on the sliding seat, and an electromagnet is arranged on the horizontal seat. When the electromagnet excites a magnetic field, the magnetic block and the electromagnet are magnetically attracted to each other.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] In the present invention, a sanding assembly is arranged on the conveying track of the gypsum board to grind the saw marks on the gypsum board after sawing, wherein the sanding assembly mainly adopts a flexible rotating sanding belt as a grinding piece, which will not interfere with the transmission of the gypsum board, but can improve the flatness of the sawed end surface of the gypsum board, thereby improving the appearance quality of the gypsum board. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0025] Figure 1 A schematic structural diagram of a gypsum board production line board cutting saw mark elimination equipment system is provided for an embodiment of the present invention;

[0026] Figure 2 A schematic structural diagram of a machine body in a gypsum board production line board cutting saw mark elimination equipment system is provided for an embodiment of the present invention;

[0027] Figure 3 for Figure 1 The enlarged view of point A in the middle;

[0028] Figure 4 A structural schematic diagram of a tension monitoring component in a gypsum board production line board slitting saw mark elimination equipment system is provided for an embodiment of the present invention;

[0029] The numbers in the figure represent the following:

[0030] 1 body, 2 first motor, 3 driving shaft wheel, 4 rotating rod, 5 driven shaft wheel, 6 grinding belt, 7 lead screw, 8 lead screw nut, 9 second motor, 10 column, 11 support rod, 12 guide rail, 13 threaded rod, 14 threaded sleeve, 15 connecting tube, 16 first spring, 17 slider, 18 horizontal seat, 19 sliding seat, 20 second spring, 21 pressure sensor, 22 magnetic block, 23 push rod, 24 electromagnet, 25 conveying assembly. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the prior art, after the gypsum board is cut by a saw blade, obvious and rough saw marks will remain on the end surface, which not only affects the appearance quality of the gypsum board, but also causes damage to the film layer during the subsequent lamination process. Therefore, it is necessary to grind the end surface of the gypsum board after cutting. To this end, we propose the following solution to solve the above problem:

[0033] like Figure 1 and Figure 2 As shown, the present invention provides a gypsum board production line board cutting saw mark elimination equipment system, comprising:

[0034] The conveying assembly 25 is a conveying mechanism used for continuously conveying a plurality of gypsum boards.

[0035] The sanding component is used for sanding the sawn end surface of the gypsum board.

[0036] Among them, the sanding assembly includes two bodies 1 arranged on both sides of the gypsum board, and a sanding belt 6 is installed on the body 1 through a driving mechanism. The sanding surface of the sanding belt 6 is in sliding contact with the saw end surface of the gypsum board, and the transmission direction of the sanding belt 6 is opposite to the conveying direction of the gypsum board.

[0037] The sawed gypsum boards are placed on the conveying assembly 25 in sequence, and the two end faces with saw marks on the gypsum boards are respectively opposite to the sanding belts 6 on both sides of the conveying assembly 25. Before the gypsum boards are conveyed to the next process by the conveying assembly 25, the gypsum boards pass through the sanding assembly.

[0038] The frosted surface of the frosting belt 6 is in sliding contact with the saw surface of the gypsum board, and the conveying component 25 drives the gypsum board to move relative to the frosting belt 6, and at the same time, the driving mechanism drives the frosting belt 6 to transmit, and the moving direction of the frosting belt 6 is opposite to the moving direction of the gypsum board, so that the end surface of the gypsum board with saw marks rubs against the frosting belt 6, and then the saw marks on the end surface of the gypsum board are smoothed to improve the flatness of the sawed end surface of the gypsum board, thereby improving the appearance quality of the gypsum board, and realizing automated grinding, improving the operating safety factor of job personnel and reducing safety hazards, meeting factory production requirements, and adding supporting electrical control programs.

[0039] Furthermore, a bag dust collector is arranged under the sanding belt 6, and the bag dust collector is used to collect the powder generated during the sanding belt 6 sanding the gypsum board to maintain the working environment on site.

[0040] In this embodiment, refer to Figure 2 As shown, the driving mechanism includes a driving shaft wheel 3 and a driven shaft wheel 5 rotatably mounted on the machine body 1, and a grinding belt 6 is driven sleeved on the driving shaft wheel 3 and the driven shaft wheel 5. The driving shaft wheel 3 and the driven shaft wheel 5 are parallel to each other.

[0041] A rubber layer is provided on the surface of the driving shaft wheel 3 and the driven shaft wheel 5 to increase the friction between the frosting belt 6 and the driving shaft wheel 3, the driven shaft wheel 5. The friction between the frosting belt 6 and the driving shaft wheel 3, the driven shaft wheel 5 is greater than the friction between the frosting belt 6 and the end surface of the gypsum board to avoid slipping between the frosting belt 6 and the driving shaft wheel 3, the driven shaft wheel 5.

[0042] A first motor 2 for driving the driving shaft wheel 3 to rotate is installed on the body 1. The first motor 2 is a servo motor. According to the conveying speed of the gypsum board by the conveying component 25, the transmission speed of the first motor 2 to the sanding belt 6 is adjusted to extend the sanding time between the sanding belt 6 and the end face of the gypsum board.

[0043] As the sanding belt 6 is used, it will be worn. In order to keep the sanding belt 6 taut so that the sanding belt 6 is always pressed and rubbed against the end surface of the gypsum board, in this embodiment, the following solution is proposed to solve the above problem:

[0044] A lead screw 7 is provided on the machine body 1 along its length direction, and the lead screw 7 is rotatably mounted with the machine body 1 via a bearing. A second motor 9 for driving the lead screw 7 to rotate is installed on the machine body 1, and a lead screw nut 8 is threadedly sleeved on the lead screw 7.

[0045] A rotating rod 4 is fixedly connected to one end of the driven shaft wheel 5 , and the rotating rod 4 coincides with the central axis of the driven shaft wheel 5 . The other end of the rotating rod 4 is rotatably connected to the lead screw nut 8 via a bearing.

[0046] The second motor 9 drives the lead screw 7 to rotate, and the lead screw 7 drives the lead screw nut 8 to move along the length direction of the lead screw 7. The lead screw nut 8 drives the driven shaft wheel 5 to move along the length direction of the machine body 1 through the rotating rod 4, thereby changing the distance between the driven shaft wheel 5 and the driving shaft wheel 3, and then adjusting the tension of the sanding belt 6.

[0047] When the frosting belt 6 is arranged in parallel with the gypsum board, the inlet frosting belt 6 is in a tensioned state, and the frosting belt 6 of the driving shaft wheel 3 and the driven shaft wheel 5, especially the frosting belt 6 located between the driving shaft wheel 3 and the driven shaft wheel 5, does not contact the end surface of the gypsum board well. If more driven shaft wheels 5 are used to press against the gypsum board, the conveying effect of the gypsum board will be reduced. Therefore, the following solution is proposed in this embodiment to solve the above problem:

[0048] It also includes an angle adjustment component, which is used to drive the body 1 to rotate so as to change the angle between the sanding belt 6 and the gypsum board.

[0049] The body 1 is tilted relative to the gypsum board through the angle adjustment component, and the two bodies 1 are installed in an "eight" shape. When the gypsum board enters between the two bodies 1, the driven shaft wheel 5 presses the protrusion of the grinding belt 6 against the end face of the gypsum board, and the grinding belt 6 rotates at the same time to grind the end face of the gypsum board at high speed to eliminate the saw marks on the end face of the gypsum board, thereby avoiding the inability to effectively grind the gypsum board when the grinding belt is loose.

[0050] In order to achieve the above purpose, in this embodiment, the structure of the angle adjustment component is as follows:

[0051] The angle adjustment component includes a through hole formed on one end of the body 1, in which a column 10 is inserted, and the body 1 and the column 10 are rotatably mounted, and a support rod 11 is fixedly connected to the other end of the body 1, and the other end of the support rod 11 is connected to a guide rail 12 for limiting its moving trajectory, and the guide rail 12 is an arc with the column 10 as the center.

[0052] A rotating mechanism is connected to the machine body 1 , and is located at one end of the machine body 1 away from the column 10 . The rotating mechanism is used to drive the machine body 1 to rotate and swing around the column 10 .

[0053] The rotating mechanism drives the body 1 to rotate about the column 10 to change the distance between the driven shaft wheel 5 on the body 1 and the conveying assembly 25, so that the sanding belt 6 on one side of the driven shaft wheel 5 is against the end face of the gypsum board, maintaining the grinding effect of the sanding belt 6 on the gypsum board. At the same time, the device has the ability to grind gypsum boards of different sizes.

[0054] In this embodiment, the rotating mechanism includes a threaded sleeve 14, in which a threaded rod 13 is threadedly inserted, a slide groove is opened on the body 1 along its length direction, a slider 17 is installed in the slide groove, and the slider 17 is in sliding contact with the slide groove, and one end of the threaded rod 13 is rotatably connected to the slider 17 through a connecting piece.

[0055] The staff drives the threaded rod 13 to rotate so that the threaded rod 13 moves relative to the threaded sleeve 14. The threaded rod 13 drives the slider 17 to slide in the slide groove through the connecting piece. According to the lever principle, the slider 17 drives the body 1 to rotate and swing about the column 10, and the driven shaft wheel 5 located at one end of the principle column 10 moves closer to or away from the gypsum board.

[0056] Since the driven shaft wheel 5 abuts against the passing gypsum board, when the gypsum board is placed on the conveying assembly 25 with a large offset, the gypsum board is prone to overload when passing through the driven shaft wheel, thereby damaging the gypsum board and the sanding belt 6. Therefore, we propose the following solution to solve the above problem:

[0057] Reference Figure 3 As shown, the connecting member includes a connecting tube 15, one end of the threaded rod 13 extends into the connecting tube 15, and the threaded rod 13 is in sliding contact with the inner wall of the connecting tube 15, a first spring 16 is arranged between the threaded rod 13 and the inner wall of the connecting tube 15, and the other end of the connecting tube 15 is rotatably connected to the slider 17 through a pin shaft.

[0058] When the gypsum board and the driven shaft wheel 5 are excessively squeezed, the first spring 16 between the connecting tube 15 and the threaded rod 13 is squeezed, so that the driven shaft wheel 5 can automatically avoid the gypsum board, allowing the gypsum board to pass normally, so as to avoid the hard friction between the gypsum board and the grinding belt 6, thereby automatically protecting the gypsum board and the grinding belt 6, and the side of the grinding belt 6 can also slide and rub against the side of the gypsum board, so as to ensure the grinding of the saw mark end surface of the gypsum board.

[0059] After the gypsum board passes, under the elastic force of the first spring 16, the driven shaft wheel 5 automatically returns to its original position and continues to work.

[0060] After a period of use, the sanding belt 6 will be worn to varying degrees, which will reduce the tension of the sanding belt 6 on the driving shaft wheel 3 and the driven shaft wheel 5. Timely manual adjustment is required. If it cannot be found in time, the quality of the sanding belt 6 on the gypsum board will be reduced. For this reason, we propose the following solution to solve the above problem:

[0061] A tension monitoring component is provided between the sanding belts 6, and is used to monitor the tension level of the sanding belts 6. The tension monitoring component is communicated with an external warning mechanism, and monitors the tension state of the sanding belts 6 in real time. When the tension monitoring component detects that the tension level of the sanding belts 6 is lower than the preset expectation, the tension monitoring component sends a warning signal to the workers through the external warning mechanism.

[0062] In order to realize the monitoring function of the tension monitoring component on the frosting belt 6, refer to Figure 4 As shown, in this embodiment, the specific structure of the tension monitoring component is as follows:

[0063] The tension monitoring assembly includes a horizontal seat 18 located between the sanding belts 6, a sliding seat 19 is arranged in the horizontal seat 18, and the sliding seat 19 is in sliding contact with the horizontal seat 18, a pressure sensor 21 is installed in the horizontal seat 18, and a second spring 20 is arranged between one end of the sliding seat 19 and the pressure sensor 21.

[0064] The other end of the sliding seat 19 is connected to a push rod 23 , and the other end of the push rod 23 extends outside the horizontal seat 18 , and under the elastic force of the second spring 20 , the push rod 23 always pushes against the side of the grinding belt 6 .

[0065] A ball is rotatably connected to one end of the push rod 23 that abuts against the sanding belt 6 , and the ball is used to reduce the friction between the push rod 23 and the sanding belt 6 to prevent the push rod 23 from deviating as the sanding belt 6 rotates.

[0066] Since the sanding belt 6 located in the middle of the driving shaft wheel 3 and the driven shaft wheel 5 is farther away from the tensioning force, the sanding belt 6 located here is more likely to relax. Therefore, setting the horizontal seat 18 in the middle of the driving shaft wheel 3 and the driven shaft wheel 5 can more quickly monitor the tensioning state of the sanding belt 6.

[0067] Since the second spring 20 is always in a compressed state, the force applied by the second spring 20 on the frosting belt 6 through the sliding seat 19 and the push rod 23 is also applied to the pressure sensor 21. Therefore, the pressure sensor 21 always monitors the tensioning state of the frosting belt 6. When the frosting belt 6 gradually becomes loose, the second spring 20 also gradually stretches, and the force applied by the second spring 20 on the pressure sensor 21 changes.

[0068] A controller is provided inside the external warning mechanism. The output end of the pressure sensor 21 is communicatively connected to the input end of the controller. The controller receives the signal of the pressure sensor 21 in real time. The input threshold of the pressure sensor 21 is preset inside the controller. When the pressure value input to the controller by the pressure sensor 21 is lower than the threshold, the controller activates the alarm of the warning mechanism, thereby sending a warning signal to the worker.

[0069] During the continuous grinding process of the gypsum board by the sanding belt 6, the surface of the sanding belt 6 will absorb dust, which will cause the uneven surface of the sanding belt 6 to become smooth, thereby reducing the grinding quality of the gypsum board by the sanding belt 6. To this end, we propose the following solution to solve the above problem:

[0070] Reference Figure 4 As shown, in the present embodiment, a magnetic block 22 is mounted on the sliding seat 19, and an electromagnet 24 is arranged on the horizontal seat 18. When current is supplied to the electromagnet 24, the electromagnet 24 excites a magnetic field, and the electromagnet 24 and the magnetic block 22 are magnetically attracted to each other. Under the action of the magnetic attraction between the electromagnet 24 and the magnetic block 22, the sliding seat 19 moves in the direction of compressing the second spring 20, and the push rod 23 is separated from the sanding belt 6. When the electromagnet 24 is powered off, under the action of the elastic force of the second spring 20, the sliding seat 19 pushes the push rod 23 to hit the sanding belt 6, thereby driving the sanding belt 6 to vibrate, so that the dust adhered to the sanding belt 6 is separated. This process is repeated, and the electromagnet 24 is intermittently powered on and off, and the push rod 23 is used to continuously strike the sanding belt 6 to remove the dust on the sanding belt 6, thereby improving the quality of the sanding belt 6 for grinding the gypsum board after long-term use and extending the service life of the sanding belt 6.

[0071] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A gypsum board production line board cutting saw mark elimination equipment system, characterized in that: include: A conveying assembly (25), the conveying mechanism being used to continuously convey a plurality of gypsum boards; A sanding assembly, the sanding assembly is used to sand the sawn end surface of the gypsum board; The sanding assembly comprises two machine bodies (1) arranged on both sides of the gypsum board, a sanding belt (6) is installed on the machine body (1) through a driving mechanism, the sanding surface of the sanding belt (6) is in sliding contact with the saw end surface of the gypsum board, and the transmission direction of the sanding belt (6) is opposite to the conveying direction of the gypsum board.

2. The gypsum board production line sheet cutting saw mark elimination equipment system according to claim 1, characterized in that: The driving mechanism comprises a driving shaft wheel (3) and a driven shaft wheel (5) rotatably mounted on a machine body (1); the grinding belt (6) transmission sleeve is arranged on the driving shaft wheel (3) and the driven shaft wheel (5); and a first motor (2) for driving the driving shaft wheel (3) to rotate is mounted on the machine body (1).

3. The gypsum board production line sheet cutting saw mark elimination equipment system according to claim 2, characterized in that: A lead screw (7) is arranged on the machine body (1) along its length direction, and the lead screw (7) and the machine body (1) are rotatably mounted via a bearing, a second motor (9) is mounted on the machine body (1) for driving the lead screw (7) to rotate, and a lead screw nut (8) is threadedly sleeved on the lead screw (7); A rotating rod (4) is fixedly connected to one end of the driven shaft wheel (5), and the rotating rod (4) coincides with the central axis of the driven shaft wheel (5). The other end of the rotating rod (4) is rotatably connected to the lead screw nut (8) via a bearing.

4. The gypsum board production line sheet cutting saw mark elimination equipment system according to claim 1, characterized in that: It also comprises an angle adjustment component, which is used to drive the machine body (1) to rotate so as to change the angle between the sanding belt (6) and the gypsum board.

5. The gypsum board production line sheet cutting saw mark elimination equipment system according to claim 4, characterized in that: The angle adjustment assembly comprises a through hole extending through one end of the body (1), a column (10) being inserted into the through hole, and the body (1) and the column (10) being rotatably mounted between them, a support rod (11) being fixedly connected to the other end of the body (1), and a guide rail (12) for limiting its moving track being connected to the other end of the support rod (11); A rotating mechanism is connected to the machine body (1), and the rotating mechanism is used to drive the machine body (1) to rotate and swing around the column (10).

6. The gypsum board production line board cutting saw mark elimination equipment system according to claim 5, characterized in that: The rotating mechanism comprises a threaded sleeve (14), a threaded rod (13) is inserted into the threaded sleeve (14), a slide groove is provided on the body (1) along its length direction, a slider (17) is installed in the slide groove, and the slider (17) is in sliding contact with the slide groove, and one end of the threaded rod (13) is rotatably connected to the slider (17) through a connecting piece.

7. The gypsum board production line sheet cutting saw mark elimination equipment system according to claim 6, characterized in that: The connecting member comprises a connecting tube (15), one end of the threaded rod (13) extends into the connecting tube (15), and the threaded rod (13) is in sliding contact with the inner wall of the connecting tube (15), a first spring (16) is arranged between the threaded rod (13) and the inner wall of the connecting tube (15), and the other end of the connecting tube (15) is rotatably connected to the slider (17) via a pin shaft.

8. The gypsum board production line board cutting saw mark elimination equipment system according to claim 1, characterized in that: A tension monitoring component is arranged between the sanding belts (6), and the tension monitoring component is used to monitor the tension of the sanding belts (6). The tension monitoring component is communicatively connected with an external warning mechanism.

9. The gypsum board production line board cutting saw mark elimination equipment system according to claim 8, characterized in that: The tension monitoring assembly comprises a horizontal seat (18) located between the abrasive belts (6), a sliding seat (19) is arranged in the horizontal seat (18), and the sliding seat (19) is in sliding contact with the horizontal seat (18), a pressure sensor (21) is installed in the horizontal seat (18), and a second spring (20) is arranged between one end of the sliding seat (19) and the pressure sensor (21); The other end of the sliding seat (19) is connected to a push rod (23), and the other end of the push rod (23) extends outside the horizontal seat (18), and under the elastic force of the second spring (20), the push rod (23) always presses against the side of the grinding belt (6).

10. The gypsum board production line board cutting saw mark elimination equipment system according to claim 9, characterized in that: A magnetic block (22) is mounted on the sliding seat (19), and an electromagnet (24) is arranged on the horizontal seat (18); when the electromagnet (24) excites a magnetic field, the magnetic block (22) and the electromagnet (24) are magnetically attracted to each other.

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