A single-sheet gypsum board conveying device with an automatic push board

Abstract

The present invention discloses a single-sheet gypsum board conveying device with an automatic push plate, which includes a roller path, a high-pressure nozzle, a push plate, a driver and a polished rod. The end of the roller path is close to the stacking table, and the working surface of the roller path is higher than that of the stacking table. During the stacking process, both ends of the gypsum board are abutted against the roller path and the stacking table respectively. In the present invention, a high-speed air flow output by the high-pressure nozzle forms an air cushion between the gypsum board and the stacking table, and the air cushion can upwardly support the gypsum board to reduce its weight, thereby reducing the friction between the gypsum board and the stacking table. The present invention also drives the push plate through the driver to push the gypsum board that slips on the last roller shaft at the end of the roller path, so that it is pushed onto the stacking table, thereby increasing the transmission force at the end of the roller path, and the push plate automatically sinks below the gypsum board during the transmission process of the gypsum board without affecting normal production.

Description

Technical Field

[0001] The present invention relates to the field of roller tables with driven roller columns, and particularly to a single-sheet paper-faced gypsum board conveying device with an automatic push plate. Background Art

[0002] During the production process of paper-faced gypsum boards, due to quality problems of the boards themselves, the non-conforming products that cannot enter the finished board stacking table will turn and enter the non-conforming product stacking table before sawing. The roller table before entering the non-conforming product stacking table is an ordinary roller, and the surface friction of the roller surface is small. When most of a board is fed from the roller table into the stacking table, there is very little board left on the roller table. At this time, when the friction between the roller and the board is less than the friction between the board and the stacking table, there will be a problem of slipping and unable to convey.

[0003] When this board is not the last board, the subsequent paper-faced gypsum boards can push this board into the stacking table, but it may also cause disordered boards. When this board is the last board, it is necessary to manually push this board into the stacking table.

[0004] Therefore, a technical solution is needed that can increase the transmission force at the end of the roller table and at the same time reduce the friction between the board and the stacking table during the stacking process of paper-faced gypsum boards. Summary of the Invention

[0005] The purpose of the present invention is to provide a single-sheet paper-faced gypsum board conveying device with an automatic push plate to solve the technical problem that the friction between the gypsum board and the roller table is less than the friction between the gypsum board and the stacking board during the process of the existing gypsum board being conveyed from the roller table to the stacking table.

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

[0007] A single-sheet paper-faced gypsum board conveying device with an automatic push plate, comprising: a roller path, which is arranged substantially horizontally, the end of the roller path is close to the stacking table, the working surface of the roller path is higher than the working surface of the stacking table, and the roller path is used to convey the board to the stacking table; a high-pressure nozzle, which is arranged between the roller path and the stacking table, the high-pressure nozzle is connected to a high-pressure air source and outputs high-speed air flow to the stacking table at an angle parallel to the working surface of the stacking table, and the high-speed air flow forms an air cushion that supports the board between the board and the working surface of the stacking table; a push plate, which is used to be arranged between the last two roller shafts at the end of the roller path, the push plate has elasticity, the maximum height of the push plate is equal to the height of the paper-faced gypsum board conveyed through the roller path, and during the process of the paper-faced gypsum board being conveyed through the roller path, it can squeeze the push plate to cause it to elastically deform downward to avoid the paper-faced gypsum board; a driver, the execution part of the driver is connected to the push plate, and the driver is used to drive the push plate to move along the conveying direction of the roller path; a light rod, the light rod is connected to the roller path and is horizontally arranged directly above the push plate, and the thickness of 2 boards > the gap between the light rod and the working surface of the roller path > the thickness of 1 board.

[0008] Preferably, it further includes a variable-diameter roller shaft, which replaces the last roller shaft at the end of the roller path, the maximum diameter of the variable-diameter roller shaft is equal to the diameter of the roller shaft, and the minimum diameter of the variable-diameter roller shaft can avoid the horizontal movement of the push plate.

[0009] Preferably, the variable-diameter roller shaft includes a through shaft, the diameter of the through shaft < the diameter of the roller shaft, at least 2 sleeves are sleeved on the through shaft, the diameter of the sleeve = the diameter of the roller shaft, and the push plate and the high-pressure nozzle are arranged between the two sleeves.

[0010] Preferably, the push plate includes an execution part, one end of the execution part is connected with a connecting part through a pin shaft, the connecting part is fixedly connected with the execution part of the driver, the axis of the pin shaft is horizontally arranged, the execution part can rotate relative to the connecting part through the pin shaft so that the height of its free end is equal to the height of the paper-faced gypsum board conveyed through the roller path or lower than the bottom surface of the paper-faced gypsum board, and the execution part is also connected to the connecting part through an elastic part, and the resilience of the elastic part makes the free end of the execution part always have a tendency to move upward.

[0011] Preferably, the elastic part is a spring, both the execution part and the connecting part are boards, a first installation surface is formed at the bottom of the execution part, a second installation surface is formed at the top of the connecting part, the first installation surface and the second installation surface are parallel, and both ends of the elastic part are abutted against the first installation surface and the second installation surface respectively.

[0012] Preferably, a positioning column is connected to the actuator, and the positioning column extends toward the connecting member and passes through the connecting member. The elastic member is sleeved on the positioning column, and a slot is formed on the connecting member for preventing the positioning column from moving.

[0013] Preferably, the positioning column is a bolt, and a countersunk hole threadedly connected to the positioning column is formed on the actuator.

[0014] Preferably, a baffle is fixedly connected to the connecting member, and when the actuator is at the maximum height, the top wall of the actuator abuts against the baffle.

[0015] Preferably, at least one roller is connected to the actuator, and the roller is located higher than the actuator and biased towards the material incoming direction of the roller, and a cross section of the roller is parallel to the transmission direction of the roller.

[0016] Preferably, the device further comprises a controller in communication with the driver, wherein the controller is in communication with a sensor for sensing whether there is a gypsum board resting on the last roller at the end of the roller conveyor.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention forms an air cushion between the gypsum board and the stacking platform through the high-speed air flow output by the high-pressure nozzle. The air cushion can support the gypsum board upward to reduce its weight and thus reduce the friction between the gypsum board and the stacking platform.

[0019] 2. The present invention drives the push plate through the driver to push the gypsum board that slips on the last roller at the end of the roller conveyor, so that it is pushed onto the stacking platform, thereby increasing the transmission force at the end of the roller conveyor, and the push plate automatically sinks under the gypsum board during the transmission process of the gypsum board, without affecting normal production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0021] Figure 1 A three-dimensional schematic diagram of the positional relationship between the present invention and the stacking platform;

[0022] Figure 2 A top view of the process of conveying a single sheet of gypsum board onto a stacking platform according to the present invention;

[0023] Figure 3 The sectional view taken along the A-A direction of Figure 2 ;

[0024] Figure 4 The enlarged partial view at position B of Figure 3 ;

[0025] Figure 5 The enlarged partial view at position C of Figure 4 ;

[0026] Figure 6 The perspective view of the present invention, in which the polished rod is hidden for affecting the observation;

[0027] Figure 7 The enlarged partial view at position D of Figure 6 ;

[0028] The reference numerals in the figure respectively represent the following:

[0029] 10 - roller path; 11 - roller shaft; 20 - push plate; 21 - actuator; 22 - pin shaft; 23 - connecting member; 24 - elastic member; 25 - positioning column; 26 - slot hole; 27 - baffle; 28 - roller; 30 - driver; 40 - stepped roller shaft; 41 - through shaft; 42 - sleeve; 50 - sensor; 60 - stacking table; 70 - high-pressure nozzle; 80 - polished rod. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] As Figures 1-7 shown, the present application provides:

[0032] A single-sheet paper-faced gypsum board conveying device with an automatic push plate, including a roller path 10, a high-pressure nozzle 70, a push plate 20, a driver 30, and a polished rod 80.

[0033] The roller path 10 is arranged substantially horizontally. The end of the roller path 10 is close to the stacking table 60. The working surface of the roller path 10 is higher than the working surface of the stacking table 60. The roller path 10 is used to convey the board to the stacking table 60;

[0034] The sheet refers to a single sheet of gypsum board. Since the roller path 10 is higher than the stacking table 60, when the sheet is transferred from the roller path 10 to the stacking table 60, the leading end of the sheet abuts against the working surface of the stacking table 60, and the trailing end of the sheet abuts against the working surface of the roller path 10. The sheet is slightly inclined, and the inclination angle is < 3 degrees. An open triangular cavity with an opening facing the roller path 10 is formed between the sheet and the working surface of the stacking table 60.

[0035] The high-pressure nozzle 70 is arranged between the roller path 10 and the stacking table 60. The high-pressure nozzle 70 is connected to a high-pressure gas source and outputs high-speed air flow at an angle parallel to the working surface of the stacking table 60 into the open triangular cavity formed above the working surface of the stacking table 60. The high-speed air flow forms an air cushion that supports the sheet between the sheet and the working surface of the stacking table 60.

[0036] The high-pressure gas source is not shown in the figure. The high-pressure gas source can be a high-pressure gas cylinder, and the high-pressure gas cylinder accumulates high-pressure gas through an air compressor.

[0037] The air cushion can support the sheet upward without separating the sheet from the stacking table 60. The function of the air cushion is to reduce the weight of the sheet, so that:

[0038] (a) When the leading end of the sheet has not been placed on the working surface of the stacking table 60, the sheet will not bend under the action of gravity;

[0039] (b) When the trailing end of the sheet approaches the working surface of the stacking table 60, the friction between the leading end of the sheet and the working surface of the stacking table 60 is reduced, and the possibility of the sheet slipping between the last roller 11 at the end of the roller path 10 is reduced.

[0040] The pushing plate 20 is arranged between the last two rollers 11 at the end of the roller path 10. The pushing plate 20 is elastic, and the maximum height of the pushing plate 20 is equal to the height of the gypsum board transferred through the roller path 10. During the process of the gypsum board being transferred through the roller path 10, the pushing plate 20 can be squeezed to elastically deform downward to avoid the gypsum board;

[0041] The pushing plate 20 can be a C-shaped structure bent from a single elastic sheet, with its opening facing the end of the roller path 10, and its top being flush with the height of the gypsum board.

[0042] The execution part of the driver 30 is connected to the pushing plate 20, and the driver 30 is used to drive the pushing plate 20 to move along the transmission direction of the roller path 10;

[0043] The driver 30 is a cylinder. The piston rod of the driver 30 is connected to the pushing plate 20. The pushing plate 20 is also connected to the frame through a sliding table (not shown in the figure). The weight of the pushing plate 20 is borne by the sliding table, and the driver 30 only responsible for outputting thrust.

[0044] During the process of the gypsum board being transported through the roller path 10, its head end contacts the push plate 20. The push plate 20 is elastically deformed downward under extrusion. The gypsum board passes above the push plate 20. After the end of the gypsum board detaches from the push plate 20, the push plate 20 resets under the action of the resilience force to be at the same height as the end of the gypsum board. When the end of the gypsum board slips on the last roller 11, the driver 30 drives the push plate 20 to move along the transport direction of the roller path 10, and the driver 30 pushes the gypsum board off the last roller 11.

[0045] The polished rod 80 is connected to the roller path 10 and is horizontally arranged directly above the push plate 20. The thickness of 2 of the said plates > the gap between the polished rod 80 and the working surface of the roller path 10 > the thickness of 1 of the said plates.

[0046] The polished rod 80 does not interfere with the normal transport of the plates on the roller path 10. Its function is to prevent the end of the plates from tilting to a position where the push plate 20 cannot contact under the action of the air cushion, thus avoiding the abnormal operation of the push plate 20.

[0047] Preferably, the height of the polished rod 80 can be adjusted to adapt to plates of different thicknesses; several bearings can also be installed on the polished rod 80 to reduce the frictional force between the polished rod 80 and the plates.

[0048] Furthermore, in order to avoid the push plate 20 contacting the roller 11 during the process of pushing the gypsum board, the thickness of the push plate 20 must be less than the thickness of the gypsum board. This easily causes the push plate 20 to leave marks on the side wall at the end of the gypsum board. For this reason, it is necessary to increase the thickness of the push plate 20 so that it is at least equal to the thickness of the gypsum board. Based on the above reasons, it is necessary to reduce the diameter of the last roller 11 on the roller path 10 while not affecting the transport process of the gypsum board through the roller path 10.

[0049] To achieve the above purpose, the push plate device further includes a variable-diameter roller 40. The variable-diameter roller 40 replaces the last roller 11 at the end of the roller path 10. The maximum diameter of the variable-diameter roller 40 is equal to the diameter of the roller 11. The minimum diameter of the variable-diameter roller 40 can avoid the horizontal movement of the push plate 20.

[0050] Among them, the specific structure of the variable-diameter roller 40 is: the variable-diameter roller 40 includes a through shaft 41. The diameter of the through shaft 41 < the diameter of the roller 11. At least 2 sleeves 42 are sleeved on the through shaft 41. The diameter of the sleeves 42 = the diameter of the roller 11. The push plate 20 and the high-pressure nozzle 70 are both arranged between the two sleeves 42.

[0051] Further: The push plate 20 includes an actuator 21. One end of the actuator 21 is connected to a connecting member 23 through a pin shaft 22. The connecting member 23 is fixedly connected to the actuator part of the driver 30. The axis of the pin shaft 22 is horizontally arranged. The actuator 21 can rotate relative to the connecting member 23 through the pin shaft 22 so that the height of its free end is equal to the height of the gypsum board transported through the roller path 10 or lower than the bottom surface of the gypsum board. The actuator 21 is also connected to the connecting member 23 through an elastic member 24. The resilience of the elastic member 24 makes the free end of the actuator 21 always tend to move upward.

[0052] In the elastic system of the push plate 20, only the elastic member 24 has elasticity. The elastic member 24 is used to make the actuator 21 always maintain a height equal to that of the gypsum board transported through the roller path 10 without external force. The actuator 21 can move downward to avoid the gypsum board during transportation and automatically reset after the gypsum board leaves.

[0053] The specific position of the connecting member 23 is determined by the distance between two adjacent roller shafts 11. When the distance between the two roller shafts 11 is large, the connecting member 23 is arranged between the last two roller shafts 11 of the roller path 10.

[0054] Conversely, the connecting member 23 is arranged after the last roller shaft 11 of the roller path 10.

[0055] The elastic member 24 can be a spring or a torsion spring. Since the elastic force of the torsion spring is usually small, a spring is used as the elastic member 24 in this embodiment. Its specific installation structure is as follows: The elastic member 24 is a spring. Both the actuator 21 and the connecting member 23 are plates. A first mounting surface is formed at the bottom of the actuator 21, and a second mounting surface is formed at the top of the connecting member 23. The first mounting surface and the second mounting surface are parallel. Both ends of the elastic member 24 are abutted against the first mounting surface and the second mounting surface respectively.

[0056] Both the actuator 21 and the connecting member 23 are plates bent into a specified shape. In this embodiment, both the actuator 21 and the connecting member 23 are bent into a bent plate shape with an obtuse angle through a bending line. After being bent, the actuator 21 and the connecting member 23 have parallel parts, that is, the parts where the first mounting surface and the second mounting surface are located, so as to facilitate the elastic member 24 to apply a force to the actuator 21.

[0057] Further: A positioning column 25 is connected to the actuator 21. The positioning column 25 extends towards the connecting member 23 and penetrates through the connecting member 23. The elastic member 24 is sleeved on the positioning column 25. A slot hole 26 for avoiding the movement of the positioning column 25 is formed on the connecting member 23.

[0058] The positioning post 25 passes through the elastic member 24 and then passes through the connecting member 23 through the slot hole 26, so that both ends of the elastic member 24 can always abut between the actuator 21 and the connecting member 23.

[0059] Among them, the positioning post 25 is a bolt, and a counterbore for threaded connection with the positioning post 25 is formed on the actuator 21.

[0060] The height of the bolt head of the positioning post 25 is lower than the top surface height of the actuator 21.

[0061] Furthermore, in order to accurately limit the maximum height of the actuator 21: a baffle 27 is fixedly connected to the connecting member 23, and when the actuator 21 is at the maximum height, the top wall of the actuator 21 abuts against the baffle 27.

[0062] The above functions can also be achieved by other means. For example: a steel cable is connected between the actuator 21 and the connecting member 23, and the actuator 21 stops moving upward when the steel cable is taut, or a nut is installed at the bottom end of the positioning post 25, and the actuator 21 stops moving upward when the nut abuts against the connecting member 23.

[0063] Furthermore, in order to prevent marks from being generated due to friction between the actuator 21 and the bottom surface of the gypsum board when the gypsum board passes over the actuator 21.

[0064] At least one roller 28 is connected to the actuator 21. The roller 28 is located at a position higher than the actuator 21 and biased towards the incoming material direction of the roller path 10, and a section plane of the roller 28 is parallel to the transmission direction of the roller path 10.

[0065] The roller 28 is a bearing installed on the actuator 21 through a bolt. The gypsum board first contacts the roller 28, and then the roller 28 drives the actuator 21 to move downward against the resilience of the elastic member 24. When the gypsum board passes over the actuator 21, the roller 28 abuts against and rolls on the bottom surface of the gypsum board, thus avoiding leaving scratch marks on the bottom surface of the gypsum board. After the gypsum board passes over the actuator 21, the actuator 21 and the roller 28 bounce up, and the driver 30 can push the actuator 21 to abut against the end of the gypsum board, while the roller 28 cannot contact the end of the gypsum board.

[0066] Furthermore: the roller path further includes a controller (not shown in the figure) communicatively connected to the driver 30. The controller is communicatively connected to a sensor 50, and the sensor 50 is used to sense whether there is a gypsum board staying on the last roller shaft 11 at the end of the roller path 10.

[0067] In this embodiment, the sensor 50 is a photoelectric switch. The sensor 50 is connected to the connecting member 23, and the sensing end of the sensor 50 is arranged upward. When the gypsum board covers above the sensor 50, the sensor 50 sends a signal to the controller, and the controller starts timing. Until the gypsum board moves away from above the sensor 50, the sensor 50 sends a signal to the controller again.

[0068] If the second signal has not been sent after the specified time has elapsed since the sensor 50 sent the first signal for the first time, it indicates that the gypsum board slips at the last roller 11 at the end of the roller path 10. At this time, the controller sends a working signal to the driver 30.

[0069] The above embodiments are only exemplary embodiments of the present invention and are not used to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of the present invention, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present invention.

Claims

1. A single-sheet gypsum board conveying device with an automatic push plate, characterized in that, including a roller path (10), the roller path (10) being arranged substantially horizontally, the end of the roller path (10) being close to the stacking table (60), the working surface of the roller path (10) being higher than the working surface of the stacking table (60), and the roller path (10) being used for transporting sheets to the stacking table (60); a high-pressure nozzle (70), the high-pressure nozzle (70) being arranged between the roller path (10) and the stacking table (60), the high-pressure nozzle (70) being connected to a high-pressure gas source and outputting a high-speed air flow to the stacking table (60) at an angle parallel to the working surface of the stacking table (60), and the high-speed air flow forming an air cushion for supporting the sheet between the sheet and the working surface of the stacking table (60); a push plate (20), the push plate (20) being used for being arranged between the last two roller shafts (11) at the end of the roller path (10), the push plate (20) having elasticity, the maximum height of the push plate (20) being equal to the height of the gypsum board with paper face transported through the roller path (10), and the gypsum board with paper face being able to squeeze the push plate (20) during the transportation through the roller path (10) to cause it to elastically deform downward to avoid the gypsum board with paper face; a driver (30), the execution part of the driver (30) being connected to the push plate (20), and the driver (30) being used for driving the push plate (20) to move along the transportation direction of the roller path (10); a smooth rod (80), the smooth rod (80) being connected to the roller path (10) and being horizontally arranged directly above the push plate (20), and the thickness of 2 sheets > the gap between the smooth rod (80) and the working surface of the roller path (10) > the thickness of 1 sheet; further including a variable-diameter roller shaft (40), the variable-diameter roller shaft (40) replacing the last roller shaft (11) at the end of the roller path (10), the maximum diameter of the variable-diameter roller shaft (40) being equal to the diameter of the roller shaft (11), and the minimum-diameter part of the variable-diameter roller shaft (40) being able to avoid the horizontal movement of the push plate (20).

2. The single-sheet gypsum board with paper face conveying device with an automatic push plate according to claim 1, characterized in that the variable-diameter roller shaft (40) includes a through shaft (41), the diameter of the through shaft (41) < the diameter of the roller shaft (11), at least 2 sleeves (42) are sleeved on the through shaft (41), the diameter of the sleeve (42) = the diameter of the roller shaft (11), and the push plate (20) and the high-pressure nozzle (70) are arranged between the two sleeves (42).

3. The single-sheet gypsum board with paper face conveying device with an automatic push plate according to any one of claims 1-2, characterized in that The push plate (20) includes an actuator (21). One end of the actuator (21) is connected to a connecting member (23) through a pin shaft (22). The connecting member (23) is fixedly connected to the actuator part of the driver (30). The axis of the pin shaft (22) is horizontally arranged. The actuator (21) can rotate relative to the connecting member (23) through the pin shaft (22) so that the height of its free end is equal to the height of the gypsum board transported through the roller path (10) or lower than the bottom surface of the gypsum board. The actuator (21) is also connected to the connecting member (23) through an elastic member (24). The resilience of the elastic member (24) makes the free end of the actuator (21) always tend to move upward.

4. The single-sheet gypsum board conveying device with an automatic push plate according to claim 3, characterized in that The elastic member (24) is a spring. Both the actuator (21) and the connecting member (23) are plates. A first mounting surface is formed at the bottom of the actuator (21), and a second mounting surface is formed at the top of the connecting member (23). The first mounting surface and the second mounting surface are parallel. Both ends of the elastic member (24) are abutted against the first mounting surface and the second mounting surface respectively.

5. The single-sheet gypsum board conveying device with an automatic push plate according to claim 4, characterized in that A positioning column (25) is connected to the actuator (21). The positioning column (25) extends towards the connecting member (23) and penetrates through the connecting member (23). The elastic member (24) is sleeved on the positioning column (25). A slot hole (26) for avoiding the movement of the positioning column (25) is formed on the connecting member (23).

6. The single-sheet gypsum board conveying device with an automatic push plate according to claim 5, characterized in that The positioning column (25) is a bolt. A counterbore for threadedly connecting with the positioning column (25) is formed on the actuator (21).

7. The single-sheet gypsum board conveying device with an automatic push plate according to claim 3, characterized in that A baffle (27) is fixedly connected to the connecting member (23). When the actuator (21) is at the maximum height, the top wall of the actuator (21) abuts against the baffle (27).

8. The single-sheet gypsum board conveying device with an automatic push plate according to claim 3, characterized in that At least one roller (28) is connected to the actuator (21). The roller (28) is located at a position higher than the actuator (21) and biased towards the incoming material direction of the roller path (10). A section plane of the roller (28) is parallel to the transmission direction of the roller path (10).

9. The single-sheet gypsum board conveying device with an automatic push plate according to any one of claims 1- , characterized in that It further includes a controller communicatively connected to the driver (30), and the controller is communicatively connected to a sensor (50) for sensing whether there is a gypsum board on the last roller shaft (11) at the end of the roller path (10).

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