Conveying belt deviation automatic alignment system and method applied to gypsum powder conveying

Abstract

The invention discloses an automatic conveying belt deviation adjusting system applied to gypsum powder conveying. The automatic conveying belt deviation adjusting system comprises a sliding block, an adjusting device, a limiting switch and a PLC. The sliding block is arranged at the end of the rotating shaft, a sliding rail is arranged in the belt conveying device corresponding to the end of the rotating shaft in the conveying direction of the conveying belt, and the sliding block can slide along the sliding rail. The two limiting switches are located on the two sides of the conveying belt correspondingly. When the conveying belt deviates to one side, the limiting switch on the corresponding side can be triggered; the PLC is used for receiving electric signals sent by the limiting switch and controlling the adjusting device to adjust the sliding block so that the end of the rotating shaft can deviate towards one side, and the conveying belt can be aligned. The invention further discloses a conveying belt deviation automatic alignment method applied to gypsum powder conveying, deviation of the conveying belt can be automatically aligned, the gypsum powder conveying stability is improved, and the production quality of raw paste plates is guaranteed. And the operation safety coefficient of post staff is improved, and potential safety hazards are eradicated.

Description

Technical Field

[0001] The invention relates to the technical field of gypsum board production and processing, and in particular to an automatic correction system and method for conveyor belt deviation applied to gypsum powder conveying. Background Art

[0002] In the production of gypsum board production line, the quantitative use of gypsum powder is controlled by a conveyor belt with metering function. When the conveyor belt deviates, the feeding amount of gypsum powder will be unstable, which will eventually affect the quality of the board and cause the metering conveyor belt to be scratched by foreign objects, resulting in serious production problems such as production line shutdown.

[0003] In order to avoid the above situation, a dedicated person is required to pay real-time attention or conduct regular inspections to prevent the metering conveyor belt from deviating. When this happens, the conveyor belt should be manually adjusted in time to make the conveyor belt correct.

[0004] However, the above processing method has certain safety hazards and requires manual processing for a long time, which increases the probability of safety accidents. Summary of the invention

[0005] The object of the present invention is to provide a conveyor belt automatic correction system and method for conveying gypsum powder, which can timely correct the conveyor belt when the conveyor belt deviates, so as to solve the technical problems existing in the prior art.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0007] An automatic correction system for conveyor belt deviation applied to gypsum powder conveying, acting on the rotating shaft of the conveyor belt in the belt conveying device, comprises:

[0008] A slider is arranged at the end of the rotating shaft, and a slide rail is provided inside the belt conveyor device corresponding to the end of the rotating shaft along the transmission direction of the conveyor belt, and the slider can slide along the slide rail; an adjusting device is arranged outside the belt conveyor device, and the action end of the adjusting device acts on the slider to adjust the position of the slider along the slide rail; there are at least two limit switches, and the two limit switches are arranged inside the belt conveyor device, respectively on both sides of the conveyor belt; so that when the conveyor belt deviates to one side, the limit switch on the corresponding side can be triggered; a PLC controller is used to receive the electrical signal sent by the limit switch, and control the adjusting device to adjust the slider so that the end of the rotating shaft deviates toward one side, so that the conveyor belt is adjusted.

[0009] Furthermore, two sliders are provided, which are respectively located at the two ends of the rotating shaft. The ends of the two ends of the rotating shaft inside the belt conveyor device are respectively provided with slide rails along the transmission direction of the conveyor belt. The two sliders can slide along the two slide rails respectively; the adjusting device can drive the two sliders to slide along the corresponding slide rails respectively.

[0010] Furthermore, travel switches are respectively provided at both ends of the slide rail to limit the travel of the slider. When the travel switch on one side of the slide rail is triggered by the slider, the travel switch sends an electrical signal to the PLC controller. After the PLC controller receives the electrical signal sent by the travel switch, when the PLC controller receives the electrical signal sent by the limit switch, it controls the adjustment device to adjust the slider on the other side of the travel switch that sends the electrical signal.

[0011] Furthermore, a bearing seat is provided on the sliding block, and the end of the rotating shaft is interference fit with the bearing seat.

[0012] Furthermore, the adjusting device includes two driving mechanisms, and the two driving mechanisms independently control one of the sliding blocks.

[0013] Furthermore, the driving mechanism includes a servo motor and a lead screw driven to rotate by the servo motor, the servo motor is fixed inside the belt conveyor device, the lead screw is arranged along the transmission direction of the conveyor belt, and the lead screw is threadedly connected to the slider.

[0014] Furthermore, a single slider is provided with two groups of slide rails, the two groups of slide rails are parallel to each other and are respectively located above or below the slider; at least two rolling gears are provided at the top or bottom of the slider along the moving direction of the slider, and the slide rail is provided with a rack at the position in contact with the gear, and the gear and rack are meshed.

[0015] In order to solve the above technical problems, the present invention further provides the following technical solutions:

[0016] A conveyor belt deviation automatic correction method for gypsum powder conveying, based on the conveyor belt deviation automatic correction system for gypsum powder conveying, the specific method is as follows:

[0017] During the conveying process of the belt conveyor device, if the conveying belt deviates to one side, the limit switch on the corresponding side will be triggered, and the limit switch will send an electrical signal to the PLC controller; the PLC controller controls the driving mechanism on the same side as the limit switch to adjust the slider along the slide rail to adjust the conveying belt.

[0018] Furthermore, the driving mechanism drives the slider to move a fixed distance along the slide rail each time; the PLC controller is provided with an observation period during the process of adjusting the slider, during which, if the limit switch is still sending an electrical signal to the PLC controller, the PLC controller controls the driving mechanism to move the slider again until the limit switch no longer sends an electrical signal.

[0019] Furthermore, during the conveying process of the belt conveyor, if the travel switch is triggered by the slider, the travel switch sends an electrical signal to the PLC controller; after the PLC controller receives the electrical signal sent by the travel switch, when the PLC controller receives the electrical signal sent by the limit switch, it controls the driving mechanism on the other side of the travel switch that sends the electrical signal to adjust the corresponding slider.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The automatic conveyor belt deviation adjustment system for gypsum powder conveying provided by the present invention identifies the conveyor belt deviation through a limit switch, and controls the adjustment device through a PLC controller to adjust the end of the rotating shaft of the conveyor belt to adjust the conveyor belt; the conveyor belt deviation can be automatically adjusted to improve the gypsum powder conveying stability, ensure the production quality of raw gypsum boards, and reduce production costs; and the safety factor of post employees' operation is improved to eliminate safety hazards.

[0022] The automatic correction method for conveyor belt deviation used for gypsum powder conveying provided by the present invention improves the control accuracy by quantitatively adjusting the position of the slider intermittently; at the same time, the stroke of the slider is limited, and the sliders on both sides cooperate to adjust the conveyor belt to avoid affecting the operating safety of the entire belt conveyor device due to the excessive movement distance of the slider on one side. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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.

[0024] Figure 1 It is a structural schematic diagram of the automatic deviation correction system of the conveyor belt used for gypsum powder conveying;

[0025] Figure 2 is a schematic diagram of the structure of the driving mechanism;

[0026] Figure 3 It is a structural schematic diagram of the slider moving along the slide rail.

[0027] The numbers in the figure represent the following:

[0028] 1- conveyor belt, 2- rotating shaft, 3- slider, 4- slide rail, 5- driving mechanism, 6- limit switch, 7- travel switch, 8- bearing seat, 9- servo motor, 10- lead screw, 11- frame, 12- gear, 13- rack. DETAILED DESCRIPTION

[0029] 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.

[0030] like Figure 1 and Figure 2 As shown, the present invention provides a specific implementation of an automatic belt deviation correction system for gypsum powder conveying, which acts on the rotating shaft 2 of the conveying belt 1 in the belt conveying device, and includes a slider 3, an adjustment device, a limit switch 6 and a PLC controller.

[0031] The slider 3 is arranged at the end of the rotating shaft 2 , and a slide rail 4 is arranged inside the belt conveyor device corresponding to the end of the rotating shaft 2 along the transmission direction of the conveying belt 1 , and the slider 3 can slide along the slide rail 4 .

[0032] The slider 3 is preferably arranged at the rotating shaft 2 at the rear of the belt conveyor, and a bearing seat 8 is provided on the slider 3 , and the end of the rotating shaft 2 is interference fit with the bearing seat 8 .

[0033] Among them, Figure 3 As shown, a single slider 3 is provided with two sets of slide rails 4, the two sets of slide rails 4 are parallel to each other, are respectively located above or below the slider 3, and are arranged on the frame 11 of the belt conveyor; at least two rolling gears 13 are provided at the top or bottom of the slider 3 along the moving direction of the slider 3, and the slide rail 4 is provided with a rack 14 at the position in contact with the gear 13, and the gear 13 and the rack 14 are meshed.

[0034] The adjusting device is arranged outside the belt conveyor device, and the action end of the adjusting device acts on the slider 3, which is used to adjust the position of the slider 3 along the slide rail 4 to adjust the position of one end of the rotating shaft 2, and then adjust the offset direction of the rotating shaft 2 relative to its previous position, so that the conveying belt 1 deviates in the opposite direction of its deviation direction, and finally the belt is adjusted.

[0035] At least two limit switches 6 are provided. The two limit switches 6 are arranged inside the belt conveyor device, preferably respectively arranged on both sides of the conveyor belt 1 and located on the frame 11 .

[0036] Furthermore, four limit switches 6 are provided. On both sides of the conveyor belt 1 , one limit switch 6 is provided for the upper and lower conveyor belts 1 .

[0037] Furthermore, the orientation of the sensing end of the limit switch 6 enables the conveyor belt 1 to trigger the limit switch 6 on the corresponding side when the conveyor belt 1 deviates to one side.

[0038] The PLC controller is used to receive the electrical signal sent by the limit switch 6 and control the adjusting device to adjust the slider 3 so that the conveyor belt 1 is adjusted.

[0039] In this embodiment, the slider 3 can be arranged at one end of the rotating shaft 2 , or at both ends of the rotating shaft 2 .

[0040] Furthermore, this embodiment provides an example in which two sliders 3 are provided.

[0041] There are two sliders 3, which are respectively located at the two ends of the rotating shaft 2; the ends of the belt conveyor device corresponding to the two ends of the rotating shaft 2 are respectively provided with slide rails 4 along the transmission direction of the conveyor belt 1, and the two sliders 3 can slide along the two slide rails 4 respectively; the adjusting device can drive the two sliders 3 to slide along the corresponding slide rails 4 respectively.

[0042] The adjusting device may be an integral structure, driving the two sliders 3 respectively; or the adjusting device may be a split structure, including two driving mechanisms 5 , and the two driving mechanisms 5 may control one of the sliders 3 separately.

[0043] Furthermore, this embodiment provides an example for a split structure regulating device, specifically as follows Figure 1 and Figure 2 As shown:

[0044] Two driving mechanisms 5 are respectively arranged on both sides of the belt conveyor device to control one of the sliders 3 separately.

[0045] Among them, the driving mechanism 5 includes a servo motor 9 and a screw 10 driven to rotate by the servo motor 9. The servo motor 9 is fixed on a frame 11 of the belt conveyor device. The screw 10 is arranged along the transmission direction of the conveyor belt 1, and the screw 10 is threadedly connected to the slider 3; the slider 3 can be driven to move along the slide rail 4 through the rotation of the screw.

[0046] In order to facilitate the movement of the slider 3 , two sets of driving mechanisms 5 are correspondingly provided for a single slider 3 , and the lead screws 10 of the two sets of driving mechanisms 5 act on the upper side and the lower side of the slider 3 respectively.

[0047] In this embodiment, travel switches 7 are respectively provided at both ends of the slide rail 4 to limit the travel of the slider 3 ; the travel switch 7 can be a contact travel switch 7 or an infrared travel switch 7 .

[0048] During the process of adjusting the slider 3 by the automatic correction system for conveyor belt deviation, when the travel switch 7 on one side of the slide rail 4 is triggered by the slider 3, the travel switch 7 sends an electrical signal to the PLC controller.

[0049] After the PLC controller receives the electrical signal sent by the travel switch 7, if the PLC controller receives the electrical signal sent by the limit switch 6, the control adjustment device adjusts the slider 3 on the other side of the travel switch 7 that sends the electrical signal; further, the drive mechanism 5 on the other side of the travel switch 7 that sends the electrical signal is controlled to adjust the corresponding slider 3.

[0050] Therefore, the sliders 3 on both sides cooperate with each other and work together to adjust the conveyor belt 1, so as to avoid affecting the operation safety of the entire belt conveyor device due to excessive movement of the slider 3 on one side.

[0051] The conveyor belt deviation automatic correction system is also equipped with an alarm device. If the conveyor belt 1 deviates, an alarm notification is realized, and the alarm continues during the automatic correction of the conveyor belt 1 until the conveyor belt 1 is corrected, and the alarm is automatically eliminated.

[0052] The present invention also provides an implementation method of an automatic correction method for a conveyor belt 1 used for conveying gypsum powder, and an automatic correction system for a conveyor belt 1 used for conveying gypsum powder. The specific method is as follows:

[0053] During the conveying process of the belt conveyor device, if the conveying belt 1 deviates to one side, the limit switch 6 on the corresponding side will be triggered, and the limit switch 6 will send an electrical signal to the PLC controller; the PLC controller controls the driving mechanism 5 on the same side as the limit switch 6 to adjust the slider 3 along the slide rail 4 to adjust the position of one end of the rotating shaft 2, and then adjust the offset direction of the rotating shaft 2 relative to its previous position, so that the conveying belt 1 deviates in the opposite direction of its deviation direction, so that the conveying belt 1 is adjusted.

[0054] For example, the two sides of the belt conveyor are side A and side B. If the conveyor belt 1 deviates toward side A, the driving mechanism 5 located on side A drives the slider 3 located on side A to move in a direction away from the entire belt conveyor; if the conveyor belt 1 deviates toward side B, the driving mechanism 5 located on side B drives the slider 3 located on side B to move in a direction away from the entire belt conveyor.

[0055] The driving mechanism 5 drives the slider 3 to move in the following manner: the distance that the driving mechanism 5 drives the slider 3 to move along the slide rail 4 each time is a fixed value; the PLC controller is provided with an observation period during the process of adjusting the slider 3. During the observation period, if the limit switch 6 is still sending an electrical signal to the PLC control, the PLC controller controls the driving mechanism 5 to move the slider 3 again until the limit switch 6 no longer sends an electrical signal.

[0056] The pitch of the screw is 5 mm. Each time the driving mechanism 5 drives the screw to rotate one circle, the driving slider 3 moves 5 mm. The observation period lasts for 20 minutes.

[0057] During the conveying process of the belt conveyor, if the travel switch 7 on the slide rail 4 is triggered by the slider 3, the travel switch 7 sends an electrical signal to the PLC controller; after the PLC controller receives the electrical signal sent by the travel switch 7, when the PLC controller receives the electrical signal sent by the limit switch 6, it controls the driving mechanism 5 on the other side of the travel switch 7 that sends the electrical signal to adjust the corresponding slider 3.

[0058] The distance between the travel switches 7 at both ends of a single slide rail 4 is 5 cm.

[0059] For example, the two sides of the belt conveyor are side A and side B. If the conveyor belt 1 deviates toward side A, the driving mechanism 5 located on side B drives the slider 3 located on side B to move toward the interior of the entire belt conveyor; if the conveyor belt 1 deviates toward side B, the driving mechanism 5 located on side A drives the slider 3 located on side A to move away from the interior of the entire belt conveyor.

[0060] The present invention also provides an implementation method of an automatic correction method for a conveyor belt 1 used for conveying gypsum powder, and an automatic correction system for a conveyor belt 1 used for conveying gypsum powder. The specific method is as follows:

[0061] During the conveying process of the belt conveyor device, if the conveying belt 1 deviates to one side, the limit switch 6 on the corresponding side will be triggered, and the limit switch 6 will send an electrical signal to the PLC controller; the PLC controller controls the sliders 3 at both ends of the rotating shaft 2 to move synchronously in opposite directions, and then adjusts the offset direction of the rotating shaft 2 relative to its previous position, so that the conveying belt 1 deviates in the opposite direction of its deviation direction, so that the conveying belt 1 is adjusted.

[0062] For example, the two sides of the belt conveyor are side A and side B. If the conveyor belt 1 deviates toward side A, the driving mechanism 5 located on side A drives the slider 3 located on side A to move in a direction away from the entire belt conveyor, and the driving mechanism 5 located on side B drives the slider 3 located on side B to move in a direction inside the entire belt conveyor; if the conveyor belt 1 deviates toward side B, the driving mechanism 5 located on side B drives the slider 3 located on side B to move in a direction away from the entire belt conveyor, and the sliding driving mechanism 5 located on side A drives the slider 3 located on side A to move in a direction away from the entire belt conveyor.

[0063] 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. An automatic belt deviation correction system for conveying gypsum powder, acting on the rotating shaft (2) of the conveying belt (1) in the belt conveying device, characterized in that: include: A slider (3) is arranged at the end of the rotating shaft (2); a slide rail (4) is arranged inside the belt conveyor device corresponding to the end of the rotating shaft (2) along the transmission direction of the conveying belt (1); and the slider (3) can slide along the slide rail (4); An adjusting device is arranged outside the belt conveying device, and an action end of the adjusting device acts on the slider (3) to adjust the position of the slider (3) along the slide rail (4); At least two limit switches (6) are provided, and the two limit switches (6) are arranged inside the belt conveyor device, respectively located on both sides of the conveyor belt (1); so that when the conveyor belt (1) deviates to one side, the limit switch (6) on the corresponding side can be triggered; The PLC controller is used to receive the electrical signal sent by the limit switch (6) and control the adjusting device to adjust the slider (3) so that the end of the rotating shaft (2) is offset to one side, so that the conveying belt (1) is adjusted.

2. The automatic correction system for conveyor belt deviation applied to gypsum powder conveying according to claim 1 is characterized in that: Two sliders (3) are provided, and are respectively located at the two ends of the rotating shaft (2); and slide rails (4) are respectively provided at the ends of the rotating shaft (2) inside the belt conveyor device along the transmission direction of the conveyor belt (1); and the two sliders (3) can slide along the two slide rails (4) respectively; The adjusting device can respectively drive the two sliding blocks (3) to slide along the corresponding sliding rails (4).

3. The automatic correction system for conveyor belt deviation applied to gypsum powder conveying according to claim 1 or 2 is characterized in that: Travel switches (7) are respectively provided at both ends of the slide rail (4) to limit the travel of the slider (3); when the travel switch (7) on one side of the slide rail (4) is triggered by the slider (3), the travel switch (7) sends an electrical signal to the PLC controller; After the PLC controller receives the electrical signal sent by the travel switch (7), when the PLC controller receives the electrical signal sent by the limit switch (6), it controls the adjustment device to adjust the slider (3) on the other side of the travel switch (7) that sends the electrical signal.

4. The automatic correction system for conveyor belt deviation applied to gypsum powder conveying according to claim 3 is characterized in that: A bearing seat (8) is provided on the sliding block (3), and the end of the rotating shaft (2) is interference-fitted with the bearing seat (8).

5. The automatic correction system for conveyor belt deviation applied to gypsum powder conveying according to claim 1 or 4, characterized in that: The adjusting device comprises two driving mechanisms (5), and the two driving mechanisms (5) respectively and independently control one of the sliders (3).

6. The automatic correction system for conveyor belt deviation applied to gypsum powder conveying according to claim 5 is characterized in that: The driving mechanism (5) comprises a servo motor (9) and a lead screw (10) driven to rotate by the servo motor (9); the servo motor (9) is fixed inside the belt conveyor device; the lead screw (10) is arranged along the transmission direction of the conveyor belt (1), and the lead screw (10) is threadedly connected to the slider (3).

7. The automatic correction system for conveyor belt deviation applied to gypsum powder conveying according to claim 6 is characterized in that: Two sets of slide rails (4) are correspondingly provided for a single slide block (3); the two sets of slide rails (4) are parallel to each other and are respectively located above or below the slide block (3); At least two rolling gears (13) are provided at the top or bottom of the slider (3) along the moving direction of the slider (3); the slide rail (4) is provided with a rack (14) at a position in contact with the gears (13); the gears (13) and the racks (14) are meshed.

8. A method for automatically correcting conveyor belt deviation used for gypsum powder conveying, based on the automatic correction system for conveyor belt deviation used for gypsum powder conveying according to any one of claims 1 to 7, characterized in that: During the conveying process of the belt conveyor device, if the conveying belt (1) deviates to one side, the limit switch (6) on the corresponding side will be triggered, and the limit switch (6) will send an electrical signal to the PLC controller; The PLC controller controls the driving mechanism (5) on the same side as the limit switch (6) to adjust the slider (3) along the slide rail (4) so ​​that the conveying belt (1) is adjusted.

9. The automatic correction method for conveyor belt deviation applied to gypsum powder conveying according to claim 8 is characterized in that: The driving mechanism (5) drives the slider (3) to move along the slide rail (4) each time, and the distance is a fixed value; The PLC controller is provided with an observation period during the process of adjusting the slider (3). During the observation period, if the limit switch (6) is still sending an electrical signal to the PLC controller, the PLC controller controls the drive mechanism (5) again to move the slider (3) until the limit switch (6) no longer sends an electrical signal.

10. The automatic correction method for conveyor belt deviation applied to gypsum powder conveying according to claim 8 or 9, characterized in that: During the conveying process of the belt conveyor device, if the travel switch (7) is triggered by the slider (3), the travel switch (7) sends an electrical signal to the PLC controller; After the PLC controller receives the electrical signal sent by the travel switch (7), when the PLC controller receives the electrical signal sent by the limit switch (6), it controls the driving mechanism (5) on the other side of the travel switch (7) that sends the electrical signal to adjust the corresponding slider (3).

Images