A conveying device and method for regulating the spacing of coated gypsum boards

Abstract

The present invention discloses a conveying device and method for regulating the spacing of coated gypsum boards, which includes side clamping components, front stop components and a detection module. The feeding interval period for transferring the gypsum boards onto the gypsum board conveyor belt is determined to meet the requirement that the spacing between two adjacent gypsum boards is greater than or equal to twice the thickness of the gypsum board within one feeding interval period. The gypsum boards are transferred onto the gypsum board conveyor belt within the feeding interval period. The stop device guides and clamps the two sides of the gypsum board and blocks the advancing front end, and the gypsum board enters the gypsum board conveyor belt in a set posture. At the end of the feeding interval period, the advancing front end of the gypsum board is released first, and then the clamping on both sides of the gypsum board is cancelled. After obtaining the trigger signal that the rear end of the gypsum board passes through the set position, the actions of the side clamping components and the front stop components are repeated. The present invention can accurately control the posture of the gypsum board transferred onto the gypsum board conveyor belt and can accurately control the target spacing.

Description

Technical Field

[0001] The present invention relates to the technical field of gypsum board film covering, and particularly to a device and method for regulating the spacing of film-covered gypsum boards during conveying. Background Art

[0002] In the existing production of gypsum boards, in order to achieve the performance characteristics of gypsum board decorative panels without painting, such as no painting required, healthy and environmentally friendly, rich surface finishes, and prefabricated dry construction, convenient installation, and wide application, etc., usually a film is covered on the surface of the finished gypsum board. Using the gypsum board as the substrate and an environmentally friendly PUR reactive polyurethane hot melt adhesive or other plant-based adhesives, wallpaper or other printed paper is wrapped around the outer surface of the gypsum board and used directly as an exterior finish product to form mass production to meet the needs of different customer groups.

[0003] Before the gypsum board is fed onto the conveyor belt for film covering, the film is first covered on its surface and then attached to its periphery. On the conveyor line, the supply of the film is continuous. Therefore, adjacent gypsum boards share a whole piece of film. After film covering, the film between two adjacent gypsum boards is cut first (the size of the film is larger than that of the gypsum board and can wrap its edges), and then the single gypsum board is folded and covered with film after film covering.

[0004] However, before the gypsum board is fed into the film covering mechanism, if the spacing between the gypsum boards is too small, less than the sum of the thicknesses of two gypsum boards, the film cannot completely cover the ends of the gypsum boards. And during the feeding process, due to the contact between the release action and the gypsum board conveyor belt, the posture of the gypsum board is not an ideal state for film covering, resulting in uneven edge coverage during the cutting process and affecting the quality of the final film-covered product. Summary of the Invention

[0005] The purpose of the present invention is to provide a device and method for regulating the spacing of film-covered gypsum boards during conveying to solve the technical problem in the prior art that due to the complex posture of the gypsum board relative to the gypsum board conveyor belt during the transfer process, the cutting positions of the film covering are uneven and the sides of the gypsum board cannot be well covered.

[0006] To solve the above technical problem, the present invention specifically provides the following technical solutions:

[0007] A device for regulating the spacing of film-covered gypsum boards during conveying includes the following specific steps:

[0008] Step 100: Determine the feeding interval period for the gypsum board to be transferred onto the gypsum board conveyor device according to the conveying rate of the gypsum board conveyor device, so as to ensure that the spacing between two adjacent gypsum boards is greater than or equal to twice the thickness of the gypsum board within one feeding interval period;

[0009] Step 200: Transfer the gypsum board to the gypsum board conveying device within the loading interval period. Guide and clamp both sides of the gypsum board through the stop device and block the front end of the advancing gypsum board, so that the gypsum board enters the gypsum board conveying device in a set posture.

[0010] Step 300: At the end of the loading interval period, first release the front end of the advancing gypsum board, and then cancel the clamping of both sides of the gypsum board to release the gypsum board.

[0011] Step 400: After obtaining the trigger signal that the rear end of the gypsum board passes through the set position, repeat steps 200 - 400.

[0012] As a preferred solution of the present invention, in step 100, the loading interval period is divided into an accuracy period and a compensation period.

[0013] Among them, the accuracy period is calculated according to twice the thickness of the gypsum board and the conveying speed of the gypsum board conveying device.

[0014] The compensation period is calculated according to the average value of the relative position change of the gypsum board relative to the gypsum board conveying device during the period from the front end of the gypsum board being released by the stop device to both sides of the gypsum board being released from clamping.

[0015] And make the gypsum board and the gypsum board conveying device in contact within the compensation period.

[0016] A conveying device for regulating the spacing of a film - covered gypsum board, which is used for the method of regulating the spacing of the film - covered gypsum board conveying, includes a side clamping assembly, a front end stop assembly, and a detection module. The front end stop assembly is arranged at the front end of the side clamping assembly in the gypsum board conveying direction.

[0017] The side clamping assembly is used for clamping and releasing the sides of the gypsum board placed on the gypsum board conveyor belt.

[0018] The front end stop assembly is used for blocking and releasing the front end of the gypsum board placed on the gypsum board conveyor belt.

[0019] The detection module is arranged above the front end stop assembly, and is used for monitoring and obtaining the trigger signal that the rear end of the gypsum board passes through the set position arranged in front of the front end stop assembly, and forming a control signal for controlling the operation of the front end stop assembly.

[0020] As a preferred solution of the present invention, the front end stop assembly includes a driving part. The transmission shaft of the driving part is arranged along the width direction of the gypsum board conveyor belt, and at least two blocking blocks are arranged at equal intervals on the transmission shaft.

[0021] Among them, the driving part drives the transmission shaft to rotate, so that the two blocking blocks contact or disengage from the end of the gypsum board.

[0022] As a preferred embodiment of the present invention, the gear block includes a first plate body, a second plate body is connected to the first plate body, an end of the second plate body away from the first plate body is installed on the transmission shaft, and an obtuse angle is formed between the second plate body and the first plate body.

[0023] As a preferred embodiment of the present invention, the second plate body is installed on the transmission shaft through a torsion spring assembly, and the torsion spring assembly is used to enable the second plate body to rotate around the transmission shaft when the second plate body is subjected to a force perpendicular to the second plate body.

[0024] As a preferred embodiment of the present invention, the side clamping assembly includes a guide plate installed on the side of the gypsum board conveyor belt along the length direction of the gypsum board conveyor belt. A plurality of guide grooves are arranged on the inner surface of the guide plate and extend along the width direction of the guide plate. The plurality of guide grooves are equally spaced along the length direction of the guide plate. A bearing block is installed in the guide groove, and the bearing block is installed in the guide groove through an elastic member;

[0025] Wherein, the extreme position of the guide groove moving along the guide groove under force is lower than the plane where the gypsum board conveyor belt is located. When the side of the gypsum board falls on the bearing block, the bearing block moves along the guide groove under the gravity of the gypsum board until the gypsum board contacts the gypsum board conveyor belt.

[0026] As a preferred embodiment of the present invention, the guide plate includes an upper arc plate and a lower straight plate, and there is a smooth transition between the upper arc plate and the lower straight plate. An obtuse angle is formed between the upper arc plate and the lower straight plate, and the vertex of the obtuse angle faces the middle of the gypsum board conveyor belt;

[0027] The side of the lower straight plate away from the upper arc plate is installed on the side of the gypsum board conveyor belt through a limit rotating shaft. The limit rotating shaft is used to enable the upper arc plate and the lower straight plate to rotate as a whole around the limit rotating shaft when the upper arc plate is subjected to a force, and restore the initial position of the upper arc plate and the lower straight plate when the force on the upper arc plate disappears;

[0028] The guide groove is arranged on the inner surface of the lower straight plate.

[0029] As a preferred embodiment of the present invention, a locking assembly is arranged at the bottom of the guide groove. The locking assembly is used to lock the bearing block when the bearing block reaches the bottom of the guide groove, and release the bearing block when the upper arc plate and the lower straight plate rotate as a whole around the limit rotating shaft under the action of force on the upper arc plate.

[0030] The present invention has the following beneficial effects compared with the prior art:

[0031] The present invention can accurately control the posture of the gypsum board being transferred to the gypsum board conveyor belt, and can accurately control the target spacing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] 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.

[0033] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the transmission shaft structure of an embodiment of the present invention;

[0035] Figure 3 A schematic diagram of the guide plate assembly structure of an embodiment of the present invention;

[0036] Figure 4 Schematic diagram of the structure of a torsion spring assembly according to an embodiment of the present invention.

[0037] The numbers in the figure represent the following:

[0038] 1- side clamping assembly; 2- front end stop assembly; 3- detection module; 4- locking assembly; 5- gypsum board conveyor belt;

[0039] 11-guide plate; 12-guide groove; 13-carrying block; 14-elastic member;

[0040] 111-upper arc plate; 112-lower straight plate; 113-limiting rotating shaft;

[0041] 21-driving unit; 22-transmission shaft; 23-shift block; 24-torsion spring assembly;

[0042] 241-compression spring; 242-pin block; 243-assembly slot; 244-disc body; 245-fixing block;

[0043] 231-first plate; 232-second plate;

[0044] 41-lever member; 42-elastic positioning ball pin; 43-locking hole; 44-lead-out groove; 45-actuating member. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0046] The present invention provides a method for regulating the spacing of coated gypsum boards during conveying, including the following specific steps:

[0047] Step 100: Determine the feeding interval period for transferring the gypsum board to the gypsum board conveying device according to the conveying speed of the gypsum board conveying device, so as to ensure that the spacing between two adjacent gypsum boards is greater than or equal to twice the thickness of the gypsum board within one feeding interval period.

[0048] Step 200: Transfer the gypsum board to the gypsum board conveying device within the feeding interval period, and guide and clamp the two sides of the gypsum board and block the front end of the advancing gypsum board through a stop device, so that the gypsum board enters the gypsum board conveying device in a set posture.

[0049] Step 300: At the end of the feeding interval period, first release the front end of the advancing gypsum board, and then cancel the clamping on both sides of the gypsum board to release the gypsum board.

[0050] Step 400: After obtaining the trigger signal that the rear end of the gypsum board passes through the set position, repeat steps 200 - 400.

[0051] In step 100, the feeding interval period is divided into an accuracy period and a compensation period.

[0052] Among them, the accuracy period is calculated according to twice the thickness of the gypsum board and the conveying speed of the gypsum board conveying device.

[0053] The compensation period is calculated according to the average value of the relative position change of the gypsum board relative to the gypsum board conveying device during the period from the front end release of the gypsum board by the stop device to the release of both sides of the gypsum board.

[0054] And make the gypsum board and the gypsum board conveying device in contact within the compensation period.

[0055] Since when the gypsum board is placed on the moving conveyor belt, the situation between the two is relatively complex, which is related to the surface roughness of the gypsum board, the roughness of the conveyor belt, and whether there is an initial velocity when transferred to the conveyor belt. And at the moment of placing on the conveyor belt, the contact point and contact area size between the gypsum board and the gypsum board conveyor belt have a great influence on the final posture and state of the gypsum board on the conveyor belt. Of course, in the most ideal state, the whole gypsum board is parallel to the conveying direction of the conveyor belt.

[0056] In order to ensure that the conveying distance between two adjacent gypsum boards meets the requirement of being greater than or equal to twice the thickness of the gypsum board, it is first necessary to control the time interval between the conveyance of two adjacent gypsum boards. Of course, an excessive time interval will cause waste of the film for laminating. To accurately control the length of the film between two gypsum boards as much as possible, first, the accuracy period is used to ensure that the film between the two is definitely twice the thickness. The compensation period takes into account the influence time caused by the state change during the contact between the gypsum board and the gypsum board conveyor belt, so as to ensure that the interval between the two is greater than or equal to twice the thickness of the gypsum board while also avoiding an overly long distance between the two gypsum boards.

[0057] Such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, in order to ensure that the gypsum board is conveyed in an ideal state with the gypsum board conveyor belt and precise spacing control is carried out, the present invention provides a conveying device for regulating the spacing of a laminated gypsum board to implement the method for regulating the spacing of a laminated gypsum board during conveying, including a side clamping assembly 1, a front stop assembly 2, and a detection module 3. The front stop assembly 2 is arranged at the front end of the side clamping assembly 1 in the conveying direction of the gypsum board. The side clamping assembly 1 is used for clamping and releasing the sides of the gypsum board placed on the gypsum board conveyor belt. The front stop assembly 2 is used for blocking and releasing the front end of the gypsum board placed on the gypsum board conveyor belt. The detection module 3 is arranged above the front stop assembly 2 and is used for monitoring and obtaining a trigger signal when the rear end of the gypsum board passes through a set position arranged in front of the front stop assembly 2, and forming a control signal for controlling the operation of the front stop assembly 2.

[0058] For the implementation process of the method and the device, within the accuracy period, the transfer of the gypsum board is completed, and the gypsum board is released at the time points of the accuracy period and the compensation period. At this time, the front stop assembly 2 has completed the preparation for stopping the movement of the gypsum board, and the side clamping assembly 1 realizes the clamping of the sides of the gypsum board. After the compensation time ends, the front stop assembly 2 is released, and then the side clamping assembly 1 releases the gypsum board, so as to ensure that the gypsum board is placed on the gypsum board in a relatively ideal state.

[0059] To further illustrate the above working principle, the front stop assembly 2 includes a driving part 21. The transmission shaft 22 of the driving part 21 is arranged along the width direction of the gypsum board conveyor belt, and at least two blocking blocks 23 are arranged at equal intervals on the transmission shaft 22. Among them, the driving part 21 drives the transmission shaft 22 to rotate, so that the two blocking blocks 23 contact or disengage from the end of the gypsum board. That is to say, when the driving part 21 receives that the rear end of the gypsum board has passed through the set position, the driving part 21 drives the transmission shaft 22 to rotate, so that the blocking blocks 23 resume the vertical blocking state.

[0060] In this process, in order to ensure that the gear block 23 is always in a vertical state and contacts the end face of the gypsum board, the present invention provides a specific implementation method for the gear block 23, which includes a first plate body 231. A second plate body 232 is connected to the first plate body 231. The end of the second plate body 232 away from the first plate body 231 is installed on the transmission shaft 22, and there is an obtuse angle between the second plate body 232 and the first plate body 231.

[0061] In order to avoid the impact between the gypsum board and the first plate body 231 caused by the acceleration obtained by the gypsum board through the gypsum board conveyor belt when releasing the stop state at the front end of the gypsum board, the present invention buffers the impact state. The second plate body 232 is installed on the transmission shaft 22 through a torsion spring assembly 24. The torsion spring assembly 24 is used to enable the second plate body 232 to rotate around the transmission shaft 22 when the second plate body 232 is subjected to a force perpendicular to the second plate body 232, thereby buffering the impact action of the gypsum board, and can also achieve flexible contact when the first plate body 231 contacts the side end of the gypsum board, rather than direct hard contact, to avoid damage to the front surface of the gypsum board.

[0062] Furthermore, for the side clamping assemblies 1 located on both sides of the gypsum board conveyor belt in the present invention, their main purpose is to limit the side state of the gypsum board, rather than tightly clamp it. Therefore, in the actual process, the effective clamping width of the two side clamping assemblies 1 for the gypsum board is equal to or slightly larger than the width of the gypsum board. Then, in order to further illustrate this clamping state, the present invention provides a specific implementation manner of the side clamping assembly 1, which includes a guide plate 11 installed on the side of the gypsum board conveyor belt along the length direction of the gypsum board conveyor belt. A plurality of guide grooves 12 are provided on the inner surface of the guide plate 11 and extend along the width direction of the guide plate 11. The plurality of guide grooves 12 are equally spaced along the length direction of the guide plate 11. A bearing block 13 is installed in the guide groove 12, and the bearing block 13 is installed in the guide groove 12 through an elastic member 14.

[0063] Among them, the extreme position where the guide groove 12 moves along the guide groove 12 under force is lower than the plane where the gypsum board conveyor belt is located. When the side of the gypsum board falls on the bearing block 13, the bearing block 13 moves along the guide groove 12 under the gravity of the gypsum board until the gypsum board contacts the gypsum board conveyor belt.

[0064] Further, in the present invention, in order to refine the time nodes of the accuracy period and the compensation period at the mechanical level, the guide plate 11 includes an upper arc plate 111 and a lower straight plate 112, and there is a smooth transition between the upper arc plate 111 and the lower straight plate 112. There is an obtuse angle between the upper arc plate 111 and the lower straight plate 112, and the vertex of the obtuse angle faces the middle of the gypsum board conveyor belt, so that the gypsum board can be limited when it falls. When the gypsum board is on the side clamping assembly 1 of the transfer paper, no matter what the state of the transferred gypsum board is, it can be guided by the upper arc plates 111 of the side clamping assemblies 1 on both sides, so as to keep the gypsum board in a parallel state.

[0065] Since the mass of the gypsum board itself is very large, the time for the gypsum board to pass through between the upper arc plate 111 and the lower straight plate 112 of the two-side clamping assembly 1 is very short. Then, the transfer of the gypsum board can be controlled within the accuracy period, and the compensation period can be limited within the time when the gypsum board falls from the upper arc plate 111 and the lower straight plate 112.

[0066] Further, considering the automatic return of the bearing block 13 to its initial position, the side of the lower straight plate 112 away from the upper arc plate 111 is installed on the side of the gypsum board conveyor belt through a limit rotating shaft 113. The limit rotating shaft 113 is used to make the whole of the upper arc plate 111 and the lower straight plate 112 rotate around the limit rotating shaft 113 under the action of force on the upper arc plate 111. When the force acting on the upper arc plate 111 disappears, the initial position of the upper arc plate 111 and the lower straight plate 112 is restored; the guide groove 12 is arranged on the inner surface of the lower straight plate 112.

[0067] Further, in the above process of releasing the gypsum board, in order to realize the flow operation process of the gypsum board, that is, the bearing block 13 can be automatically locked and released in the guide groove 12. The present invention is provided with a locking assembly 4 at the bottom of the guide groove 12. The locking assembly 4 is used to lock the bearing block 13 when the bearing block 13 reaches the bottom of the guide groove 12, and releases the bearing block 13 when the upper arc plate 111 and the lower straight plate 112 rotate around the limit rotating shaft 113 under the action of force on the upper arc plate 111.

[0068] And in order to further explain the above working principle, the present invention provides a specific implementation manner of the locking assembly 4, as Figure 3 shown, a locking hole 43 is arranged on the bottom side wall of the bearing block 13. When the bearing block 13 moves to the limit along the guide groove 12, the sphere of the elastic positioning ball pin 42 arranged at the end of the lever member 41 is clamped into the locking hole 43, so as to realize the locking of the bearing block 13. It is required that the lever members 41 and the elastic positioning ball pins 42 are arranged on both sides of the bearing block 13. The lever members 41 and the elastic positioning ball pins 42 are arranged on the bracket of the gypsum board conveyor belt, and there is no connection relationship with the whole guide plate 12.

[0069] When the next gypsum board falls on the upper arc plate 111, the side of the gypsum board will exert force on the upper arc plate 111, so that the upper arc plate 111 drives the lower straight plate 112 to rotate as a whole. In this way, the toggle member 45 set on the limit rotation 13 will exert force on the lever member 41, so that the elastic positioning ball pin 42 disengages from the locking hole 43 along the guide groove 44, thereby realizing the release of the supporting block 13.

[0070] To further illustrate, the torsion spring assembly 24 in the present invention specifically includes a disk body 244 mounted on the transmission shaft 22, an annular assembly groove 243 is arranged in the disk body 244, and a fixing block 245 is arranged on the inner wall of the assembly groove 243 along the radial direction of the assembly groove 243, and a pin block 242 embedded in the assembly groove 243 is arranged on the transmission shaft 22. When the shift block 23 rotates around the transmission shaft 22, the pin block 242 will realize the compression action of the compression spring 241, and the springs on both sides of the pin block 242 will continuously compress and release the elastic potential energy, thereby realizing the force buffering on the shift block 23 as a whole.

[0071] It is further explained that the action principle between the limit bearing 113 and the lower straight plate 112 in the present invention is the same as the action principle between the torsion spring assembly 24 and the transmission shaft 22 .

[0072] 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 conveying method for regulating the spacing of coated gypsum boards, characterized in that, it includes the following specific steps: Step 100: Determine the feeding interval period for transferring the gypsum board to the gypsum board conveying device according to the conveying rate of the gypsum board conveying device, so as to ensure that the spacing between two adjacent gypsum boards is greater than or equal to twice the thickness of the gypsum board within one feeding interval period; Step 200: Transfer the gypsum board to the gypsum board conveying device within the feeding interval period, and use the stop device to guide and clamp both sides of the gypsum board and block the front end of its advancement, so that the gypsum board enters the gypsum board conveying device in a set posture; Step 300: At the end of the feeding interval period, first release the front end of the advancing gypsum board, and then cancel the clamping on both sides of the gypsum board to release the gypsum board; Step 400: After obtaining the trigger signal that the rear end of the gypsum board passes through the set position, repeat steps 200-400; In step 100, the feeding interval period is divided into an accuracy period and a compensation period; Among them, the accuracy period is calculated according to twice the thickness of the gypsum board and the conveying rate of the gypsum board conveying device; According to the release situation of the front end of the gypsum board by the stop device, the average value of the relative position change of the gypsum board relative to the gypsum board conveying device during the period from clamping to releasing on both sides of the gypsum board is calculated for the compensation period; And make the gypsum board and the gypsum board conveying device in contact within the compensation period.

2. A conveying device for regulating the spacing of coated gypsum boards, which is used to implement the conveying method for regulating the spacing of coated gypsum boards described in claim 1, characterized in that, it includes a side clamping assembly (1), a front end stop assembly (2) and a detection module (3). The front end stop assembly (2) is arranged at the front end of the side clamping assembly (1) in the gypsum board conveying direction; The side clamping assembly (1) is used to clamp and release the sides of the gypsum board placed on the gypsum board conveyor belt; The front end stop assembly (2) is used to block and release the front end of the gypsum board placed on the gypsum board conveyor belt; The detection module (3) is arranged above the front end stop assembly (2) and is used to monitor and obtain the trigger signal that the rear end of the gypsum board passes through the set position arranged in front of the front end stop assembly (2), and form a control signal for controlling the operation of the front end stop assembly (2); The side clamping assembly (1) includes a guide plate (11) installed on the side of the gypsum board conveyor belt along the length direction of the gypsum board conveyor belt. A plurality of guide grooves (12) are arranged on the inner surface of the guide plate (11) and extend along the width direction of the guide plate (11). The plurality of guide grooves (12) are equidistantly distributed along the length direction of the guide plate (11). A bearing block (13) is installed in the guide groove (12), and the bearing block (13) is installed in the guide groove (12) through an elastic member (14); Among them, the guiding groove (12) is lower than the plane where the gypsum board conveyor belt is located at the limit position where it moves along the guiding groove (12) under force. When the side of the gypsum board falls on the bearing block (13), the bearing block (13) moves along the guiding groove (12) under the gravity of the gypsum board until the gypsum board contacts the gypsum board conveyor belt; The guiding plate (11) includes an upper arc plate (111) and a lower straight plate (112), and there is a smooth transition between the upper arc plate (111) and the lower straight plate (112). There is an obtuse angle between the upper arc plate (111) and the lower straight plate (112), and the vertex of the obtuse angle faces the middle of the gypsum board conveyor belt; The side of the lower straight plate (112) away from the upper arc plate (111) is installed on the side of the gypsum board conveyor belt through a limit rotating shaft (113). The limit rotating shaft (113) is used to make the upper arc plate (111) and the lower straight plate (112) rotate integrally around the limit rotating shaft (113) under the action of force on the upper arc plate (111), and when the force acting on the upper arc plate (111) disappears, restore the initial positions of the upper arc plate (111) and the lower straight plate (112); The guiding groove (12) is arranged on the inner surface of the lower straight plate (112).

3. A conveying device for regulating the spacing of coated gypsum boards according to claim 2, characterized in that, The front stop assembly (2) includes a driving part (21). The transmission shaft (22) of the driving part (21) is arranged along the width direction of the gypsum board conveyor belt, and at least two gear blocks (23) are arranged at equal intervals on the transmission shaft (22); Among them, the driving part (21) drives the transmission shaft (22) to rotate, so that the two gear blocks (23) contact or separate from the end of the gypsum board.

4. A conveying device for regulating the spacing of coated gypsum boards according to claim 3, characterized in that, The gear block (23) includes a first plate body (231), a second plate body (232) is connected to the first plate body (231), the end of the second plate body (232) away from the first plate body (231) is installed on the transmission shaft (22), and there is an obtuse angle between the second plate body (232) and the first plate body (231).

5. A conveying device for regulating the spacing of coated gypsum boards according to claim 4, characterized in that, The second plate body (232) is installed on the transmission shaft (22) through a torsion spring assembly (24). The torsion spring assembly (24) is used to enable the second plate body (232) to rotate around the transmission shaft (22) when the second plate body (232) receives a force perpendicular to the second plate body (232).

6. A conveying device for regulating the spacing of coated gypsum boards according to claim 2, characterized in that, A locking component (4) is arranged at the bottom of the guiding groove (12). The locking component (4) is used to lock the bearing block (13) when the bearing block (13) reaches the bottom of the guiding groove (12), and release the bearing block (13) when the upper arc plate (111) and the lower straight plate (112) rotate integrally around the limiting rotating shaft (113) under the action of force on the upper arc plate (111).

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