An automatic detection and return device for a gypsum board edge sealing process

Abstract

This invention discloses an automatic detection and return device for gypsum board edge banding, comprising a transport roller conveyor, a return roller conveyor, and an anti-collision roller conveyor frame. The anti-collision roller conveyor frame contains two sets of flow roller conveyors. The input end of one set of flow roller conveyors corresponds to the feeding roller conveyor, and its output end corresponds to the transport roller conveyor. When gypsum board is detected at the output end of the return roller conveyor, the input end of one set of flow roller conveyors corresponds to the feeding roller conveyor, and the output end of the other set of flow roller conveyors corresponds to the transport roller conveyor. The returned gypsum board is then fed onto the latter set of flow roller conveyors. In this invention, when the edge banding device malfunctions, a push structure is activated to push the unsealed gypsum board onto the return roller conveyor. The return roller conveyor transports the unsealed gypsum board back to the input end of the transport roller conveyor for re-sealing. The anti-collision roller conveyor frame prevents the gypsum board from impacting or interfering with the edge banding process, ensuring the quality of the gypsum board edge banding.

Description

Technical Field

[0001] This invention relates to a transport device in the gypsum board production process, specifically to an automatic detection and return device for the gypsum board edge banding process. Background Technology

[0002] The production process of gypsum board uses natural gypsum or industrial modified gypsum as raw materials. It involves calcination and powdering, stirring and pulping, paper bonding and forming, drying, cutting, edge sealing and packaging to finally obtain paper-faced gypsum board. During the production process, due to reasons such as failure of raw materials, processes, equipment or human operation, the semi-finished gypsum board may have defects such as missing corners, uneven board density, and failure to seal the edges in time. Continuing to produce subsequent processes will result in the final paper-faced gypsum board failing to meet the quality and appearance standards.

[0003] Taking the edge banding process of gypsum board as an example, when the edge banding equipment malfunctions or the operator makes a mistake, some gypsum boards will be left unbandaged. The unbandaged gypsum boards will be removed from the gypsum board transport rollers through the waste disposal process to avoid entering the subsequent production process.

[0004] After the unsealed gypsum boards are discarded, staff are specially assigned to manually seal the edges. However, the sealing efficiency is too low, and the sealing quality cannot be uniform. The sealed gypsum boards are then put into subsequent production processes to finally produce paper-faced gypsum boards. The production method of discarding defective gypsum boards and returning them to the process through manual operation cannot guarantee the uniformity of the gypsum board output quality. Summary of the Invention

[0005] Therefore, the present invention provides an automatic detection and return device for the edge banding process of gypsum board, which effectively solves the problem that the existing production method of discarding defective gypsum boards and returning them to the process by manual operation cannot guarantee the uniformity of the output quality of gypsum boards.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution: an automatic detection and return device for gypsum board edge banding process, comprising:

[0007] The conveyor roller conveyor is used to transport gypsum board to the edge sealing device and to move the gypsum board that has been edge sealed. A push structure is provided on the side of the conveyor roller conveyor.

[0008] A return plate roller conveyor is disposed on the side of the transport roller conveyor. The pushing structure is directly opposite to the input end of the return plate roller conveyor. The transport directions of the return plate roller conveyor and the transport roller conveyor are opposite. The output end of the return plate roller conveyor corresponds to the input end of the transport roller conveyor.

[0009] A collision avoidance roller conveyor is provided at the output end of the return plate roller conveyor and the input end of the transport roller conveyor. A feeding roller conveyor is also provided at the upstream end of the collision avoidance roller conveyor. The collision avoidance roller conveyor includes two sets of diversion roller conveyors, one of which has its input end corresponding to the feeding roller conveyor and its output end corresponding to the transport roller conveyor.

[0010] When gypsum board is detected at the output end of the return roller conveyor, the input end of one set of diversion roller conveyors corresponds to the feeding roller conveyor, and the output end of the other set of diversion roller conveyors corresponds to the transport roller conveyor. The gypsum board is then fed onto the latter set of diversion roller conveyors.

[0011] Furthermore, the diverting roller conveyor includes a mounting frame and diverting rollers;

[0012] The diverting rollers are arranged along the length of the mounting shaft frame, and the diverting rollers are installed at equal intervals within the mounting shaft frame.

[0013] Furthermore, the anti-collision roller frame includes a mounting frame, a lifting seat disposed on the side of the mounting frame, and a threaded screw disposed on the lifting seat;

[0014] A first drive motor is provided on the threaded screw, and the threaded screw is located at the output end of the first drive motor. A threaded groove is provided in the lifting seat, and the threaded screw cooperates with the threaded groove.

[0015] The mounting brackets are installed inside the mounting frame from top to bottom, and the mounting brackets are parallel to each other.

[0016] Furthermore, a fixed shaft is fixed to the side of the mounting frame, and a connecting shaft frame is rotatably provided on the side of the feeding roller conveyor, with a baffle plate installed in at least part of the connecting shaft frame;

[0017] The connecting shaft bracket has a long groove on its end side, and the fixed shaft is slidably disposed in the long groove.

[0018] Furthermore, the included angle between the mounting brackets is 45°;

[0019] A first rotating shaft is rotatably mounted on the side of the feeding roller conveyor, and the end of the mounting bracket is connected to the first rotating shaft. A second drive motor is connected to the first rotating shaft.

[0020] Furthermore, a receiving groove is provided on the inner side of the mounting shaft bracket, and the diverting roller is located away from the receiving groove;

[0021] A second rotating shaft is rotatably mounted on the side of the feeding roller conveyor. A rotating shaft frame is connected to the second rotating shaft. The rotating shaft frame is movably disposed in the receiving groove. A rotating roller is disposed inside the rotating shaft frame. A third drive motor is connected to the end of the second rotating shaft.

[0022] Furthermore, the second rotating shaft passes through the mounting bracket;

[0023] The second rotating shaft and the first rotating shaft are on the same axis.

[0024] Furthermore, a first radial groove and a second radial groove are provided on the peripheral side of the end of the diverting roller on the mounting bracket at the bottom, and the first radial groove and the second radial groove are connected.

[0025] The distance between the first radial groove and the middle position of the diverter roller is less than the distance between the second radial groove and the middle position of the diverter roller.

[0026] Furthermore, a first movable plate is movably disposed in the first radial groove, and a second movable plate is movably disposed in the second radial groove. An extrusion column is disposed on the first movable plate via a connecting rod, and a limit plate is disposed on the second movable plate.

[0027] The distance from the outer end of the extrusion column to the central axis of the diverter roller is equal to the distance from the outer end of the limiting plate to the central axis of the diverter roller, and the outer end of the extrusion column is configured as a round head structure;

[0028] The inner end of the extrusion column is connected to the first radial groove via a spring.

[0029] Furthermore, the conveyor roller conveyor includes a conveyor roller disposed at the output end of the anti-collision roller conveyor frame, and a conveyor belt interlaced between the conveyor rollers;

[0030] The output end of the conveyor belt is provided with a stacking platform, and the pushing structure is provided on the side of the stacking platform;

[0031] The return plate roller conveyor includes return plate rollers disposed on the side of the stack platform and return plate belts interlaced between the return plate rollers;

[0032] Part of the return plate roller is disposed at the output end of the return plate belt, and the return plate roller is directly opposite the side of the diverter roller;

[0033] The apex of the return roller is flush with the top of the limiting plate.

[0034] Compared with the prior art, the present invention has the following advantages:

[0035] In this invention, a return roller conveyor is set on the side of the transport roller conveyor. When the edge sealing device malfunctions, the push structure is activated to push the unsealed gypsum board onto the return roller conveyor. The return roller conveyor transports the unsealed gypsum board back to the input end of the transport roller conveyor for re-sealing. An anti-collision roller conveyor frame is set at the input end of the transport roller conveyor to prevent the returned gypsum board from colliding with and interfering with the gypsum board on the original transport roller conveyor, thus preventing transport chaos. This allows the unsealed gypsum board to re-enter the edge sealing process, thereby ensuring the edge sealing quality of the gypsum board. Attached Figure Description

[0036] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of the automatic detection and return board device for the gypsum board edge banding process provided in the embodiments of the present invention, using the first embodiment.

[0038] Figure 2 This is a schematic diagram of the anti-collision roller conveyor in its initial state in the first embodiment;

[0039] Figure 3 for Figure 2 A schematic diagram of the structure where the mounting bracket is moved upwards;

[0040] Figure 4 This is a side view of the anti-collision roller conveyor frame in an embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of the second embodiment of the automatic detection and return device for the gypsum board edge banding process provided in this invention.

[0042] Figure 6 for Figure 5 Schematic diagram of the structure of the anti-collision roller conveyor frame;

[0043] Figure 7 This is a schematic diagram of the mounting bracket and rotating bracket in their initial state according to an embodiment of the present invention;

[0044] Figure 8 for Figure 7 A schematic diagram of the structure in which the rotating shaft bracket rotates to coincide with the mounting shaft bracket;

[0045] Figure 9 This is a schematic diagram of the mounting bracket in the second embodiment;

[0046] Figure 10 This is a schematic diagram of the rotating shaft bracket in the second embodiment;

[0047] Figure 11 This is a schematic diagram of the side structure of the diverting roller in the second embodiment;

[0048] Figure 12 This is a schematic diagram of the cross-sectional structure of the diverting roller corresponding to the position of the second radial groove in the second embodiment;

[0049] Figure 13 This is a schematic diagram of the cross-sectional structure of the diverting roller corresponding to the position of the first radial groove in the second embodiment.

[0050] The labels in the diagram represent the following:

[0051] 1-Conveyor roller conveyor; 2-Return roller conveyor; 3-Pushing structure; 4-Anti-collision roller conveyor frame; 5-Gypsum board; 6-Edge sealing device; 7-Feeding roller conveyor;

[0052] 11-Conveyor roller; 12-Conveyor belt; 13-Stacking platform;

[0053] 21 - Return roller; 22 - Return conveyor belt;

[0054] 41-Diverting roller conveyor; 42-Mounting frame; 43-Lifting seat; 44-Threaded screw; 45-First drive motor; 46-Threaded groove; 47-Fixed shaft; 48-Connecting shaft bracket; 49-Blocking plate; 410-Long groove; 413-First rotating shaft; 414-Second drive motor; 415-Receiving groove; 416-Second rotating shaft; 417-Rotating shaft bracket; 418-Rotating roller; 419-Third drive motor; 420-First radial groove; 421-Second radial groove; 422-First movable plate; 423-Second movable plate; 424-Connecting rod; 425-Extrusion column; 426-Limiting plate; 427-Spring;

[0055] 411 - Mounting shaft bracket; 412 - Diverting roller. Detailed Implementation

[0056] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] like Figure 1 and Figure 5 As shown, the present invention provides an automatic detection and return device for the gypsum board edge banding process, including a transport roller conveyor 1, a return roller conveyor 2, a pushing structure 3, and an anti-collision roller conveyor frame 4.

[0058] The conveyor roller 1 is used to transport the gypsum board 5 to the edge sealing device 6 and to move the gypsum board 5 after edge sealing.

[0059] The return roller conveyor 2 is located on the side of the transport roller conveyor 1. The transport directions of the return roller conveyor 2 and the transport roller conveyor 1 are opposite, and the output end of the return roller conveyor 2 corresponds to the input end of the transport roller conveyor 1.

[0060] The pushing structure 3 is located at the downstream end of the edge sealing device 6 and on the side of the transport roller 1. The pushing structure 3 pushes the unsealed gypsum board 5 onto the return roller 2.

[0061] The anti-collision roller conveyor frame 4 is set at the output end of the return roller conveyor 2 and the input end of the transport roller conveyor 1. The upstream end of the anti-collision roller conveyor frame 4 is also provided with a feeding roller conveyor 7. The anti-collision roller conveyor frame 4 contains two sets of diversion roller conveyors 41, one of which has an input end corresponding to the feeding roller conveyor 7 and an output end corresponding to the transport roller conveyor 1.

[0062] When gypsum board 5 is detected at the output end of return roller 2, the input end of one set of diversion roller 41 corresponds to the feeding roller 7, and the output end of the other set of diversion roller 41 corresponds to the transport roller 1. The gypsum board 5 is then fed onto the latter set of diversion roller 41.

[0063] In this invention, a return roller conveyor 2 is provided on the side of the transport roller conveyor 1. When the edge sealing device 6 malfunctions, the push structure 3 is activated to push the unsealed gypsum board 5 onto the return roller conveyor 2. The unsealed gypsum board 5 is then transported back to the input end of the transport roller conveyor 1 via the return roller conveyor 2 for resealing. An anti-collision roller conveyor frame 4 is provided at the input end of the transport roller conveyor 1 to prevent the returned gypsum board 5 from colliding with and interfering with the original gypsum board 5 on the transport roller conveyor 1, causing transport chaos. This allows the unsealed gypsum board 5 to re-enter the edge sealing process, thereby ensuring the edge sealing quality of the gypsum board 5.

[0064] The diversion roller conveyor 41 is mainly used to transport gypsum board 5 in the normal transportation process and gypsum board 5 after return. The diversion roller conveyor 41 adopts the following preferred embodiment. The diversion roller conveyor 41 includes a mounting frame 411 and diversion rollers 412. The diversion rollers 412 are arranged along the length direction of the mounting frame 411, and the diversion rollers 412 are installed in the mounting frame 411 at equal intervals. The rotation of the diversion rollers 412 drives the gypsum board 5 to be transported forward. Therefore, a drive source is also provided here to drive the diversion rollers 412 to rotate.

[0065] In this invention, the anti-collision roller conveyor 4 can prevent collisions between the gypsum board 5 during normal transport and the gypsum board 5 during return. This invention provides two embodiments, wherein the first embodiment is as follows:

[0066] like Figure 2 , Figure 3 , Figure 4 As shown, the anti-collision roller frame 4 includes a mounting frame 42, a lifting seat 43 disposed on the side of the mounting frame 42, and a threaded screw 44 disposed on the lifting seat 43. A first drive motor 45 is disposed on the threaded screw 44, and the threaded screw 44 is disposed at the output end of the first drive motor 45. A threaded groove 46 is opened in the lifting seat 43, and the threaded screw 44 cooperates with the threaded groove 46. The mounting shaft frame 411 is installed in the mounting frame 42 from top to bottom, and the mounting shaft frames 411 are parallel to each other.

[0067] In the above embodiment, the mounting bracket 411 is fixedly installed inside the mounting frame 42, and the mounting frame 42 can be raised and lowered.

[0068] The first drive motor 45 drives the threaded screw 44 to rotate. Under the rotation of the threaded screw 44, the lifting seat 43 rises or falls, thereby driving the mounting frame 42 to rise or fall. In the initial state, the diverting roller 412 on the upper mounting shaft frame 411 corresponds to the feeding roller 7 and the transport roller 1. When the gypsum board 5 of the return plate arrives, the mounting frame 42 rises, driving the mounting shaft frame 411 below to rise, so that the diverting roller 412 on the lower mounting shaft frame 411 corresponds to the transport roller 1. At this time, the gypsum board 5 of the return plate can be transported by the diverting roller 412 on the lower mounting shaft frame 411.

[0069] In order to stop the gypsum board 5 during normal transportation, the present invention also makes the following design: a fixed shaft 47 is fixed on the side of the mounting frame 42, a connecting shaft frame 48 is rotatably provided on the side of the feeding roller conveyor 7, a blocking plate 49 is installed in at least part of the connecting shaft frame 48, a long groove 410 is opened on the side of the end of the connecting shaft frame 48, and the fixed shaft 47 is slidably arranged in the long groove 410.

[0070] During the process of the mounting frame 42 rising, it drives the fixed shaft 47 to rise, thereby driving the connecting shaft frame 48 to rotate gradually. The fixed shaft 47 and the long groove 410 also move relative to each other and rise to the moving height. The connecting shaft frame 48 rotates to the tilted state. At this time, the gypsum board on the feeding roller conveyor 7 is blocked by the blocking plate 49 on the connecting shaft frame 48 and cannot continue to be transported forward. At this time, the gypsum board 5 that is returning is also transported.

[0071] After the plasterboard 5 is transported out of the diversion roller 412, the mounting frame 42 is driven to descend to the initial position. The blocked plasterboard 5 resumes the transportation process, the connecting shaft frame 48 rotates to a horizontal state, and the blocking plate 49 no longer stops the plasterboard 5.

[0072] In the first embodiment, regardless of whether the gypsum board 5 is transported to the diversion roller 412, when the gypsum board 5 is returned, the mounting frame 42 must be driven to rise. After the gypsum board 5 is transported to the lower diversion roller 41, it is reset. The gypsum board 5 that was initially on the upper diversion roller 41 continues to be transported.

[0073] The second embodiment of the anti-collision roller conveyor 4 is as follows:

[0074] like Figure 6 and Figure 7 As shown, the included angle between the mounting brackets 411 is 45°. A first rotating shaft 413 is rotatably mounted on the side of the feeding roller conveyor 7. The end of the mounting bracket 411 is connected to the first rotating shaft 413. A second drive motor 414 is connected to the first rotating shaft 413.

[0075] The mounting bracket 411 is also set to two, that is, the diversion roller conveyor 41 is set to two sets, and the two sets of mounting brackets 411 are at a 45° angle to each other.

[0076] In order to obstruct the normal transport of gypsum board 5, the present invention also includes the following design, such as... Figure 6 As shown, a receiving groove 415 is provided on the inner side of the mounting bracket 411. The diverting roller 412 is away from the receiving groove 415. A second rotating shaft 416 is rotatably mounted on the side of the feeding roller conveyor 7. A rotating shaft bracket 417 is connected to the second rotating shaft 416. The rotating shaft bracket 417 is movably disposed in the receiving groove 415. A rotating roller 418 is provided in the rotating shaft bracket 417. A third drive motor 419 is connected to the end of the second rotating shaft 416.

[0077] In this invention, two rotating shaft brackets 417 are also provided, with one rotating shaft bracket 417 corresponding to one mounting shaft bracket 411. The rotating shaft bracket 417 can be stored in the storage groove 415 inside the mounting shaft bracket 411, and the included angle between the two rotating shaft brackets 417 is also 45°.

[0078] When the upper rotating shaft bracket 417 corresponds to the lower mounting shaft bracket 411, the gypsum board 5 can pass through the wall of the upper mounting shaft bracket 411. To avoid the gypsum board 5 being blocked during this process, the lowest point of the diverting roller 412 on the upper mounting shaft bracket 411 is required to be higher than the upper end face of the gypsum board 5.

[0079] In the above embodiments, such as Figure 9 and Figure 10 As shown, the two mounting shaft brackets 411 are fixedly connected, meaning that the mounting shaft brackets 411 are an integral structure. The two rotating shaft brackets 417 are also fixedly connected, meaning that the rotating shaft brackets 417 are an integral structure.

[0080] The second drive motor 414 drives the first rotating shaft 413 to rotate, thereby causing the mounting bracket 411 to rotate as a whole. The third drive motor 419 drives the second rotating shaft 416 to rotate, thereby causing the rotating bracket 417 to rotate as a whole.

[0081] In order to enable the second rotating shaft 416 to rotate smoothly, the present invention also makes the following design: the second rotating shaft 416 passes through the mounting shaft bracket 411, and the second rotating shaft 416 and the first rotating shaft 413 are on the same axis. That is to say, the rotation center axis of the mounting shaft bracket 411 and the rotating shaft bracket 417 are consistent.

[0082] The specific implementation process is as follows:

[0083] like Figure 7 As shown, in the initial state, the upper rotating shaft bracket 417 is horizontal, and the lower mounting shaft bracket 411 is horizontal. When the plasterboard 5 of the return plate arrives, the third drive motor 419 drives the second rotating shaft 416 to rotate, thereby causing the rotating shaft bracket 417 to rotate as a whole. Figure 8 As shown, the rotating shaft frame 417 is driven to rotate until it coincides with the mounting shaft frame 411. At this time, the gypsum board 5 cannot pass through the mounting shaft frame 411 and enter the conveyor roller 1.

[0084] The returned gypsum board 5 is transported onto the diversion roller 412 and then transported out via the transport roller conveyor 1.

[0085] To prevent the gypsum board 5 from still being transported on the diverting roller 412 when it arrives at the return plate, where the rotation of the rotating shaft frame 417 would only partially lift the gypsum board 5 and leave it on the diverting roller 412, thus hindering the transport of the return plate, the present invention also incorporates the following design: Figure 11 , Figure 12 and Figure 13 As shown, a first radial groove 420 and a second radial groove 421 are provided on the periphery of the end of the split roller 412 on the mounting bracket 411 at the bottom. The first radial groove 420 and the second radial groove 421 are connected. The distance between the first radial groove 420 and the middle position of the split roller 412 is less than the distance between the second radial groove 421 and the middle position of the split roller 412.

[0086] A first movable plate 422 is movably disposed in the first radial groove 420, and a second movable plate 423 is movably disposed in the second radial groove 421. An extrusion column 425 is disposed on the first movable plate 422 via a connecting rod 424, and a limit plate 426 is disposed on the second movable plate 423. The distance from the outer end of the extrusion column 425 to the central axis of the diverting roller 412 is equal to the distance from the outer end of the limit plate 426 to the central axis of the diverting roller 412. The outer end of the extrusion column 425 is configured as a round head structure, and the inner end of the extrusion column 425 is connected to the first radial groove 420 via a spring 427.

[0087] In the above embodiment, when the gypsum board 5 under normal transportation is transported to the diverting roller 412, the extrusion column 425 is extruded into the first radial groove 420. The connecting rod 424 drives the first movable plate 422 to move inward. During the inward movement, the gas in the first radial groove 420 is driven into the second radial groove 421. Under the action of air pressure, the second movable plate 423 moves upward, thereby driving the limiting plate 426 to move upward.

[0088] In this configuration, the top of the return roller 21 is flush with the top of the limiting plate 426. After the limiting plate 426 moves upward, its top is higher than the top of the return roller 21. In other words, the limiting plate 426 is higher than the bottom surface of the gypsum board 5. At this time, the gypsum board 5 cannot pass through the limiting plate 426 and enter the diverting roller 412. Therefore, when there is a normally transported gypsum board 5 on the diverting roller 412, the returned gypsum board 5 cannot enter the diverting roller 412. After the normally transported gypsum board 5 has passed, under the action of the spring 427, the first movable plate 422 resets, driving the second movable plate 423 and the limiting plate 426 to reset. At this time, the gypsum board 5 passes over the limiting plate 426 and enters the diverting roller 412. It is also at this time that the rotating shaft frame 417 is rotated to prevent the gypsum board 5 in normal transport from entering the diverting roller 412.

[0089] In the second embodiment, when the gypsum board 5 of the return plate arrives, it is necessary to determine whether there is gypsum board 5 on the diversion roller 412. If there is gypsum board 5, wait for the gypsum board 5 to be transported out and then rotate the shaft frame 417 to rotate, and the gypsum board 5 of the return plate is transported to the diversion roller 412 to block the transport of the gypsum board that is in normal transport state at the upstream end.

[0090] In this invention, the transport roller conveyor 1 includes a transport roller 11 disposed at the output end of the anti-collision roller conveyor frame 4, and a transport belt 12 interspersed between the transport rollers 11. The output end of the transport belt 12 is provided with a stacking platform 13, and the pushing structure 3 is disposed on the side of the stacking platform 13.

[0091] The gypsum board 5 enters the conveyor roller 11 from the diversion roller 412, and is then transported to the edge sealing device 6 by the conveyor belt 12 for edge sealing. The gypsum board 5 is then transported to the stacking platform 13 by the conveyor belt 12 for stacking.

[0092] In addition, the return plate roller conveyor 2 includes a return plate roller 21 disposed on the side of the stack platform 13 and a return plate belt 22 interspersed between the return plate rollers 21. Part of the return plate rollers 21 are disposed at the output end of the return plate belt 22, and the return plate rollers 21 are directly opposite the side of the diverter roller 412.

[0093] At stack 13, when it is found that the gypsum board 5 is not sealed, the push structure 3 is activated to push the gypsum board 5 onto the return roller 21, and transport the gypsum board 5 onto the return belt 22. Then, the returned gypsum board 5 is transported to the diverter roller 412 through the return roller 21 located at the output end.

[0094] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. An automatic detection and return board device for the edge banding process of gypsum board, characterized in that, include: The conveyor roller (1) is used to transport the gypsum board (5) to the edge sealing device (6) and to drive the gypsum board (5) after edge sealing. A push structure (3) is provided on the side of the conveyor roller (1). The return roller conveyor (2) is located on the side of the transport roller conveyor (1). The pushing structure (3) is located directly opposite to the input end of the return roller conveyor (2). The transport directions of the return roller conveyor (2) and the transport roller conveyor (1) are opposite. The output end of the return roller conveyor (2) corresponds to the input end of the transport roller conveyor (1). The pushing structure (3) is located at the downstream end of the edge sealing device (6). The pushing structure (3) is used to push the unsealed gypsum board (5) onto the return roller conveyor (2). The anti-collision roller conveyor frame (4) is set at the output end of the return plate roller conveyor (2) and the input end of the transport roller conveyor (1). The upstream end of the anti-collision roller conveyor frame (4) is also provided with a feeding roller conveyor (7). The anti-collision roller conveyor frame (4) contains two sets of diversion roller conveyors (41), one set of diversion roller conveyors (41) has an input end corresponding to the feeding roller conveyor (7) and an output end corresponding to the transport roller conveyor (1). The diversion roller conveyor (41) includes a mounting frame (411) and a diversion roller (412). The diverting roller (412) is arranged along the length direction of the mounting frame (411), and the diverting roller (412) is installed in the mounting frame (411) at equal intervals; The included angle between the mounting brackets (411) is 45°; The feeding roller conveyor (7) has a first rotating shaft (413) rotatably mounted on its side. The end of the mounting bracket (411) is connected to the first rotating shaft (413). A second drive motor (414) is connected to the first rotating shaft (413). The mounting shaft bracket (411) has a storage groove (415) on its inner side, and the diverting roller (412) is away from the storage groove (415). The feeding roller conveyor (7) is rotatably mounted with a second rotating shaft (416) on its side. A rotating shaft bracket (417) is connected to the second rotating shaft (416). The rotating shaft bracket (417) is movably disposed in the receiving groove (415). A rotating roller (418) is disposed in the rotating shaft bracket (417). A third drive motor (419) is connected to the end of the second rotating shaft (416). The rotating shaft bracket (417) can be stored in the receiving groove (415) inside the mounting shaft bracket (411). The included angle between the two rotating shaft brackets (417) is 45°. The end circumferential side of the split roller (412) on the mounting bracket (411) located at the bottom is provided with a first radial groove (420) and a second radial groove (421), and the first radial groove (420) and the second radial groove (421) are connected. A first movable plate (422) is movably disposed in the first radial groove (420), and a second movable plate (423) is movably disposed in the second radial groove (421). An extrusion column (425) is disposed on the first movable plate (422) via a connecting rod (424), and a limit plate (426) is disposed on the second movable plate (423). The inner end of the extrusion column (425) is connected to the first radial groove (420) via a spring (427).

2. The automatic detection and return board device for the gypsum board edge banding process according to claim 1, characterized in that, The second rotating shaft (416) passes through the mounting bracket (411). The second rotating shaft (416) and the first rotating shaft (413) are on the same axis.

3. The automatic detection and return board device for the gypsum board edge banding process according to claim 2, characterized in that, The distance between the first radial groove (420) and the middle position of the diverting roller (412) is less than the distance between the second radial groove (421) and the middle position of the diverting roller (412).

4. The automatic detection and return board device for the gypsum board edge banding process according to claim 3, characterized in that, The distance from the outer end of the extrusion column (425) to the central axis of the diverter roller (412) is equal to the distance from the outer end of the limiting plate (426) to the central axis of the diverter roller (412), and the outer end of the extrusion column (425) is configured as a round head structure.

5. The automatic detection and return board device for the gypsum board edge banding process according to claim 4, characterized in that, The conveyor roller conveyor (1) includes a conveyor roller (11) disposed at the output end of the anti-collision roller conveyor frame (4) and a conveyor belt (12) interlaced between the conveyor rollers (11). The output end of the conveyor belt (12) is provided with a stack (13), and the pushing structure (3) is provided on the side of the stack (13); The return roller conveyor (2) includes a return roller (21) disposed on the side of the stack platform (13) and a return belt (22) interlaced between the return rollers (21). Part of the return roller (21) is located at the output end of the return belt (22), and the return roller (21) is directly opposite the side of the diverter roller (412).

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