Multi-layer plate automatic feeding and drying device

Abstract

The invention discloses a multi-layer plate automatic feeding and drying device which comprises a device frame fixedly installed on loader equipment, a negative pressure fan and a driving motor are fixedly installed on the left side of the device frame, two lower pressing rollers are rotatably installed on the inner side of the device frame, and the two lower pressing rollers are symmetrically arranged front and back; the front lower pressing roller and the rear lower pressing roller rotate synchronously through cooperation of a first transmission chain wheel and a chain, and the lower pressing roller on the front side rotates synchronously with a driving motor through cooperation of a second transmission chain wheel and a chain. According to the multi-layer plate automatic feeding and drying device, a first air cylinder works to push a mounting cross beam to move front and back, at the moment, a connecting sleeve correspondingly slides outside a guide frame, so that a grabbing suction cup is moved to the position of a plate, air in the grabbing suction cup is pumped out through a negative pressure air pump, and the purpose of adsorbing and grabbing the plate is achieved; the grabbed plates are placed on the inner side of the device frame, plate loading operation is achieved through cooperation of the lower pressing roller and the upper pressing roller, and manual operation is reduced.

Description

Technical Field

[0001] This invention relates to the field of dryer conveying technology, specifically to a multi-layer automatic board feeding and drying device. Background Technology

[0002] During the production process of boards, in order to ensure the subsequent storage of the boards, it is often necessary to dry them. During drying, the produced boards can be transported into the dryer manually or by a board loading machine, and then hot air is used to dry the boards.

[0003] As disclosed in the prior art, Chinese Patent Publication No. CN103964219A discloses a novel fully automatic pallet loading machine, characterized by comprising a lower transmission device, a pallet lifting device, an upper transmission device, and a circuit control system. The lower transmission device is connected to the pallet lifting device, and the pallet lifting device is connected to the upper transmission device. The advantages of this invention compared to the prior art are: the simplified driving method reduces equipment maintenance costs and the complexity of mechanical repair; the small number of pallets corrected does not require high torque driving, the mechanism is simple with low wear and tear, and no additional power is needed; and the addition of a pallet receiving and placing function solves the practical deficiencies of existing pallet loading machines and the aforementioned technical problems.

[0004] For example, in the prior art, Chinese Patent Publication No. CN103331788A discloses a hot-pressing plate loading machine, characterized by including a main frame; a shelf frame, disposed within the main frame and capable of reciprocating from the inside of the main frame to the rear of the main frame, the shelf frame comprising multiple shelves spaced vertically, each shelf comprising a middle portion and two end portions, the middle portion being higher than the end portions; a crank post, fixed to the left and right ends of the rear of the main frame; and cranks, one end of the crank fixed to the crank post, the other end extending outward, with one crank corresponding to each left and right side of each shelf, the cranks being able to rotate horizontally above the end portions of the shelf to the outside of the main frame via the crank post as a pivot. This invention is applicable to the loading and unloading of plywood or wooden building formwork blanks of 3mm and above, it is easy to manufacture, simple to operate, and provides accurate and convenient plate loading.

[0005] For example, in the prior art, Chinese patent with publication number CN113442241A discloses a multi-layer hot press mobile automatic loading machine, which includes a loading mobile platform and a loading cage and a loading lifting platform set on the loading mobile platform. The loading lifting platform is internally provided with a plate-laying lifting platform and an inner frame of the loading lifting platform. A loading robot is set on the inner frame of the loading lifting platform. The loading cage is provided with a cage frame and a pusher frame. A pallet frame is set on the cage frame and a bracket rod is set on the pusher frame.

[0006] Based on the above information, it can be seen that traditional plate loading machines in the existing technology generally use a lifting platform to assist in the plate loading operation. However, in this process, workers need to manually place the plates onto the lifting platform, which is labor-intensive and has a certain degree of danger. Summary of the Invention

[0007] The purpose of this invention is to provide a multi-layer automatic feeding and drying device for sheet materials, so as to solve the problems mentioned in the background art, such as high labor intensity and certain risk factors of manual operation.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a multi-layer automatic board feeding and drying device, comprising a device frame fixedly installed with a board loading machine, wherein a negative pressure fan and a drive motor are fixedly installed on the left side of the device frame, and further comprising:

[0009] The device frame is rotatably mounted with a lower pressure roller, and two lower pressure rollers are symmetrically arranged at the front and rear. The two lower pressure rollers at the front and rear rotate synchronously with each other through a first transmission sprocket and a chain. The lower pressure roller at the front rotates synchronously with the drive motor through a second transmission sprocket and a chain.

[0010] The device frame is fixedly installed between the drying box and the drying box. An air inlet pipe is fixedly installed on the left side inside the drying box and is connected to a hot air blower. A three-way valve is installed outside the air inlet pipe and is connected to a return pipe that penetrates into the drying box.

[0011] The upper left and right sides of the device frame are fixedly installed with horizontally arranged guide frames, and a connecting sleeve is provided on the outside of the guide frame, and a telescopic mechanism is provided between the connecting sleeve and the guide frame.

[0012] An installation beam is installed between the left and right connecting sleeves, and the installation beam includes a fixed beam that is welded and installed and a movable beam that is not in contact with the connection. The lower surface of the movable beam is fixedly installed with equally spaced gripping suction cups, and the gripping suction cups are connected to the negative pressure fan through pipes.

[0013] The device frame has a correction plate on the right side for pushing the plate to correct its position. A third cylinder is connected to the right side of the correction plate and is fixedly installed between the third cylinder and the device frame. The third cylinder drives the correction plate to move, so that the correction plate pushes the plate to the middle position, thereby achieving automatic correction.

[0014] Preferably, the telescopic mechanism includes a first cylinder connected to the fixed beam, and the first cylinder is fixedly installed on the left and right sides above the device frame. The connecting sleeve and the guide frame form a front-to-back sliding structure. The telescopic mechanism drives the gripping suction cup to move back and forth to realize the plate loading operation.

[0015] Preferably, the connecting sleeve is rotatably mounted with first adjusting rollers on its upper and lower sides, and a second adjusting roller is rotatably mounted on the side of the connecting sleeve. The sliding resistance between the connecting sleeve and the guide frame can be adjusted using the first and second adjusting rollers.

[0016] Preferably, the first and second adjusting rollers are equipped with adjusting bolts on their outer sides for changing their compressive force, and the adjusting bolts are threadedly connected to the connecting sleeve. The compressive force between the first and second adjusting rollers and the guide frame is changed by rotating the adjusting bolts.

[0017] Preferably, an arched fixing frame is fixedly installed on the upper surface of the fixing beam, and a longitudinally arranged second cylinder is fixedly installed on the upper surface of the fixing frame. The telescopic end of the second cylinder is fixedly installed with a movable plate located inside the fixing frame, and the telescopic movement of the second cylinder can drive the movable plate to move up and down.

[0018] Preferably, two connecting rods are slidably installed through the left and right sides of the movable plate, and buffer springs are provided on the outside of the connecting rods.

[0019] Preferably, a fixing plate is fixedly installed at the lower end of the connecting rod, and the fixing plate is fixedly connected to the movable beam by bolts. The second cylinder drives the movable beam to move up and down through the fixing plate.

[0020] Preferably, an upper pressure roller is provided above the lower pressure roller, and the upper pressure roller is connected to the rotating roller.

[0021] Preferably, the rotating roller is rotatably installed in the middle position inside the device frame, and the front side of the rotating roller is rotatably connected to the telescopic end of the fourth cylinder, so that the rotating roller is driven to rotate by the telescopic action of the fourth cylinder.

[0022] Preferably, the upper end of the fourth cylinder is rotatably mounted between it and the mounting plate, and the mounting plate is fixedly mounted on the upper surface of the device frame.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: This multi-layer automatic board feeding and drying device adopts a novel structural design, the specific details of which are as follows:

[0024] 1. The first cylinder drives the installation beam to move back and forth. At this time, the connecting sleeve slides accordingly outside the guide frame, thereby moving the gripping suction cup to the position of the board. Then, the negative pressure air pump is used to extract the air from the gripping suction cup to achieve the purpose of adsorbing and gripping the board. After gripping, the board is placed inside the device frame. The lower pressure roller and the upper pressure roller cooperate to realize the board loading operation, reducing manual operation.

[0025] Furthermore, a correction plate is installed on the right side of the device frame. During the process of gripping and loading the plate, the third cylinder is activated to push the correction plate to move, thereby causing the correction plate to squeeze the gripped plate, adjust the position of the plate, and squeeze the plate that is out of position to the middle position, so as to achieve the purpose of automatic correction.

[0026] Furthermore, the connecting sleeve is equipped with a first adjusting roller and a second adjusting roller. During the movement of the connecting sleeve, the first adjusting roller and the second adjusting roller are used to convert the sliding friction into rolling friction, ensuring smooth sliding. Moreover, the squeezing force of the first adjusting roller and the second adjusting roller can be changed by rotating the adjusting bolt, thereby adjusting the sliding resistance.

[0027] 2. The second cylinder drives the movable plate to move up and down, so that the movable plate, under the connection of the connecting rod, drives the movable beam to move up and down through the fixed plate, thereby changing the height of the gripping suction cup, so that the gripping suction cup can adsorb and grip the plates of different heights. The connecting rod is equipped with a buffer spring on the outside, and the connection between the connecting rod and the movable plate is not rigid, which can reduce the damage to the gripping suction cup in the event of equipment failure.

[0028] Furthermore, the extension and retraction of the fourth cylinder drives the rotating roller inside the device frame to rotate, and the rotation of the rotating roller drives the upper pressure roller on the outside to rotate up and down, thereby changing the distance between the upper pressure roller and the lower pressure roller, so that the device can adapt to the gripping and loading operation of plates of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall southwest axis structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the overall southeast axis structure of the present invention;

[0031] Figure 3 For the present invention Figure 1 A in the middle is an enlarged structural diagram;

[0032] Figure 4 It is a schematic diagram of the overall front view structure of the present invention;

[0033] Figure 5 It is a schematic diagram of the overall side structure of the present invention;

[0034] Figure 6 This is a schematic diagram of the overall top view of the structure of the present invention;

[0035] Figure 7 This is a schematic diagram of the crossbeam structure installed in the present invention;

[0036] Figure 8 This is a structural diagram of the connection relationship between the connecting sleeve and the guide frame of the present invention;

[0037] Figure 9 This is a schematic diagram of the fixing frame structure of the present invention;

[0038] Figure 10 This is a schematic structural diagram of the connection relationship between the rotating roller and the upper pressure roller of the present invention;

[0039] Figure 11 It is a schematic diagram of the cross-sectional structure of the drying box of the present invention from a top view.

[0040] In the diagram: 1. Device frame; 2. Negative pressure fan; 3. Drive motor; 4. Lower pressure roller; 5. Upper pressure roller; 6. First transmission sprocket; 7. Second transmission sprocket; 8. Guide frame; 9. Connecting sleeve; 901. First cylinder; 10. Mounting beam; 1001. Fixed beam; 1002. Movable beam; 11. Gripping suction cup; 12. First adjusting roller; 13. Second adjusting roller; 14. Adjusting bolt; 15. Fixed frame; 16. Second cylinder; 17. Movable plate; 18. Connecting rod; 19. Buffer spring; 20. Fixed plate; 21. Correction plate; 22. Third cylinder; 23. Rotating roller; 24. Fourth cylinder; 25. Mounting plate; 26. Drying box; 27. Air inlet pipe; 28. Hot air fan; 29. ​​Three-way valve; 30. Return pipe. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] Example 1: Please refer to Figures 1-6To address the issue of high labor intensity in manual plate loading using traditional devices, this embodiment provides the following technical solution: a suction cup structure is used to automatically grip the plates for loading, reducing manual labor. Specifically, a device frame 1 is fixedly installed with the plate loading machine. A negative pressure fan 2 and a drive motor 3 are fixedly installed on the left side of the device frame 1. A lower pressure roller 4 is rotatably installed inside the device frame 1, with two rollers symmetrically arranged front and rear. The two rollers 4 rotate synchronously via a first transmission sprocket 6 and a chain. The front roller 4 rotates synchronously with the drive motor 3 via a second transmission sprocket 7 and a chain. Horizontally arranged guide frames 8 are fixedly installed on the left and right sides of the upper end of the device frame 1. A connecting sleeve 9 is provided on the outer side of the guide frame 8, and a telescopic mechanism is provided between the connecting sleeve 9 and the guide frame 8. The telescopic mechanism includes a first cylinder 901 connected to a fixed beam 1001, and the first cylinder 901 is fixedly installed on the device frame. The frame 1 is located on the left and right sides above the connecting sleeve 9 and the guide frame 8, forming a front-to-back sliding structure. A mounting beam 10 is installed between the connecting sleeves 9 on the left and right sides. The mounting beam 10 includes a fixed beam 1001 that is welded and installed, and a movable beam 1002 that is not in contact with the frame. The lower surface of the movable beam 1002 is fixedly installed with equally spaced gripping suction cups 11. The gripping suction cups 11 are connected to the negative pressure fan 2 through pipes. A correction plate 21 for pushing the plate to correct its position is provided on the right side of the device frame 1. A third cylinder 22 is connected to the right side of the correction plate 21 and is fixedly installed between the third cylinder 22 and the device frame 1. The device frame 1 is fixedly installed between the device frame 1 and the drying box 26. An air inlet pipe 27 is fixedly installed on the left side inside the drying box 26 and is connected to the hot air fan 28. A three-way valve 29 is provided outside the air inlet pipe 27 and is connected to the return pipe 30 that penetrates into the drying box 26.

[0043] When using the device, firstly, the conveying device, in conjunction with the lifting mechanism, moves the sheet material to the lower front side of the device frame 1. Then, the first cylinder 901 is activated, pushing the mounting beam 10 forward, thereby moving the gripping suction cup 11 directly above the sheet material. Next, the negative pressure fan 2 is activated to extract the air from the gripping suction cup 11, using the vacuum effect of the gripping suction cup 11 to adsorb the sheet material. Afterward, the first cylinder 901 resets the mounting beam 10. At this point, the sheet material gripped by the gripping suction cup 11 enters the inner side of the device frame 1 (the sheet material is located between the lower pressure roller 4 and the upper pressure roller 5). Finally, the drive motor 3 is activated. The drive motor 3, using the first transmission sprocket 6 and the second transmission sprocket 7 in conjunction with the chain, drives the lower pressure roller 4 to rotate, realizing the conveying of the sheet material and achieving the loading of the sheet. The purpose is to automatically correct the material by activating the third cylinder 22 during the gripping process of the suction cup 11, which pushes the correction plate 21 to move, causing the correction plate 21 to squeeze the material and thus press the material to the middle position. The material conveyed by the device frame 1 finally enters the drying chamber 26 (the drying chamber 26 can store multiple materials at the same time, thus achieving the purpose of multi-layer drying). At the same time, the hot air fan 28 is turned on to deliver hot air to the air inlet pipe 27, and the hot air is discharged into the drying chamber 26 through the air inlet pipe 27 to dry the material. Excess hot air in the drying chamber 26 returns to the air inlet pipe 27 through the return pipe 30 and the three-way valve 29 to achieve the purpose of circulation and avoid heat waste.

[0044] Example 2: Please refer to Figure 7-Figure 9 In order to improve the overall gripping flexibility of the device, this embodiment provides the following technical solution, specifically: First adjusting rollers 12 are rotatably installed on the upper and lower sides of the connecting sleeve 9, and second adjusting rollers 13 are rotatably installed on the side of the connecting sleeve 9. Adjusting bolts 14 for changing their squeezing pressure are installed on the outer sides of the first adjusting rollers 12 and the second adjusting rollers 13, and the adjusting bolts 14 are threadedly connected to the connecting sleeve 9. An arched fixing frame 15 is fixedly installed on the upper surface of the fixing beam 1001, and a longitudinally arranged second cylinder 16 is fixedly installed on the upper surface of the fixing frame 15. A movable plate 17 located inside the fixing frame 15 is fixedly installed at the telescopic end of the second cylinder 16. Two connecting rods 18 are slidably installed through the left and right sides of the movable plate 17, and buffer springs 19 are provided on the outside of the connecting rods 18. A fixing plate 20 is fixedly installed at the lower end of the connecting rods 18, and the fixing plate 20 is fixedly connected to the movable beam 1002 by bolts. The second cylinder 16 drives the movable beam 1002 to move up and down through the fixing plate 20.

[0045] During the movement of the first cylinder 901 pushing the installation beam 10, the connecting sleeve 9 with the guide frame 8 slides accordingly. At this time, the first adjusting roller 12 and the second adjusting roller 13 on the outside of the connecting sleeve 9 convert the sliding friction into rolling friction, thereby ensuring the smoothness of the sliding. According to the actual use, the operator can turn the adjusting bolt 14 to change the squeezing force of the first adjusting roller 12 and the second adjusting roller 13 to control the moving speed. When the gripping suction cup 11 reaches directly above the board, the second cylinder 16 is activated. The second cylinder 16 pushes the movable plate 17 downward. During the downward movement of the movable plate 17, the movable beam 1002 moves downward synchronously through the connecting rod 18 and the fixed plate 20. Finally, the gripping suction cup 11 below the movable beam 1002 is moved to the position of contacting the board. After adsorbing the board, the second cylinder 16 retracts and lifts the board upward (a buffer spring 19 is set on the outside of the connecting rod 18. The elasticity of the buffer spring 19 provides a certain buffering force, thereby achieving the purpose of protecting the gripping suction cup 11).

[0046] Example 3: Please refer to Figure 10 In order to adjust the distance between the lower pressure roller 4 and the upper pressure roller 5, this embodiment provides the following technical solution: the distance is adjusted by changing the height of the upper pressure roller 5 by rotating the rotating roller 23. Specifically, an upper pressure roller 5 is provided above the lower pressure roller 4, and the upper pressure roller 5 is connected to the rotating roller 23. The rotating roller 23 is rotatably installed in the middle position inside the device frame 1, and the front side of the rotating roller 23 is rotatably connected to the telescopic end of the fourth cylinder 24. The telescopic action of the fourth cylinder 24 drives the rotating roller 23 to rotate. The upper end of the fourth cylinder 24 is rotatably installed between the fourth cylinder 24 and the mounting plate 25, and the mounting plate 25 is fixedly installed on the upper surface of the device frame 1.

[0047] Before using the device, the operator activates the fourth cylinder 24 according to the thickness of the board. The extension or retraction of the fourth cylinder 24 drives the rotating roller 23 inside the device frame 1 to rotate (the upper end of the fourth cylinder 24 is rotatably connected to the mounting plate 25, and the lower end of the fourth cylinder 24 is rotatably connected to the rotating roller 23. Since both the upper and lower ends are rotatably connected, there will be no movement interference during operation). The rotation of the rotating roller 23 drives the upper pressure roller 5 to change its height. By changing the distance between the upper pressure roller 5 and the lower pressure roller 4, the device can adapt to the loading operation of boards of different thicknesses.

[0048] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multi-layer plate automatic feeding and drying device, comprising a device frame (1) fixedly mounted on a plate loading machine, a negative pressure fan (2) and a drive motor (3) fixedly mounted on the left side of the device frame (1), characterized in that: Also includes: A lower pressure roller (4) is rotatably mounted inside the device frame (1), and two lower pressure rollers (4) are symmetrically arranged front and rear, and the front and rear lower pressure rollers (4) rotate synchronously through a first transmission sprocket (6) and a chain, and the front lower pressure roller (4) rotates synchronously with the drive motor (3) through a second transmission sprocket (7) and a chain. The device frame (1) is fixedly installed with the drying box (26), and an air inlet pipe (27) is fixedly installed on the left side of the drying box (26), and the air inlet pipe (27) is connected to the hot air blower (28), a three-way valve (29) is arranged outside the air inlet pipe (27), and the three-way valve (29) is connected to a return pipe (30) that runs through the drying box (26); A transversely arranged guide frame (8) is fixedly installed on the left and right sides of the upper end of the device frame (1), a connecting sleeve (9) is arranged on the outside of the guide frame (8), and a telescopic mechanism is arranged between the connecting sleeve (9) and the guide frame (8); A mounting crossbeam (10) is installed between the left and right connecting sleeves (9), and the mounting crossbeam (10) includes a fixed beam (1001) installed by welding and a movable beam (1002) connected in a non-contact manner, and grabbing suction cups (11) distributed at equal intervals are fixedly installed on the lower surface of the movable beam (1002), and the grabbing suction cups (11) are connected to the negative pressure fan (2) through a pipeline; A correction plate (21) for pushing the plate to correct its position is arranged on the right side of the device frame (1), and a third cylinder (22) is connected to the right side of the correction plate (21), and the third cylinder (22) is fixedly mounted to the device frame (1).

2. The multi-layer plate automatic feeding and drying device according to claim 1 is characterized in that: The telescopic mechanism comprises a first cylinder (901) connected to a fixed beam (1001), and the first cylinder (901) is fixedly mounted on the left and right sides above the device frame (1), and a front-to-rear sliding structure is formed between the connecting sleeve (9) and the guide frame (8).

3. The multi-layer plate automatic feeding and drying device according to claim 2 is characterized in that: The first adjusting rollers (12) are rotatably mounted on the upper and lower sides of the connecting sleeve (9), and the second adjusting rollers (13) are rotatably mounted on the side of the connecting sleeve (9).

4. The multi-layer plate automatic feeding and drying device according to claim 3 is characterized by: Adjustment bolts (14) for changing the extrusion force thereof are installed on the outer sides of the first adjustment roller (12) and the second adjustment roller (13), and the adjustment bolts (14) are threadedly connected to the connecting sleeve (9).

5. The multi-layer plate automatic feeding and drying device according to claim 1 is characterized in that: A fixed frame (15) with an arched structure is fixedly mounted on the upper surface of the fixed beam (1001), and a second cylinder (16) arranged longitudinally is fixedly mounted on the upper surface of the fixed frame (15), and a movable plate (17) located inside the fixed frame (15) is fixedly mounted at the telescopic end of the second cylinder (16).

6. The multi-layer plate automatic feeding and drying device according to claim 5, characterized in that: Two connecting rods (18) are slidably installed through the left and right sides of the movable plate (17), and buffer springs (19) are arranged outside the connecting rods (18).

7. The multi-layer plate automatic feeding and drying device according to claim 6, characterized in that: A fixing plate (20) is fixedly mounted on the lower end of the connecting rod (18), and the fixing plate (20) is fixedly connected to the movable beam (1002) by means of bolts. The second cylinder (16) drives the movable beam (1002) to move up and down via the fixing plate (20).

8. The multi-layer plate automatic feeding and drying device according to claim 1, characterized in that: An upper pressing roller (5) corresponding to the lower pressing roller (4) is arranged above the lower pressing roller (4), and the upper pressing roller (5) is connected to the rotating roller (23).

9. The multi-layer plate automatic feeding and drying device according to claim 8, characterized in that: The rotating roller (23) is rotatably mounted at the middle position inside the device frame (1), and the front side of the rotating roller (23) is rotatably connected to the telescopic end of the fourth cylinder (24), and the rotating roller (23) is driven to rotate by the telescopic action of the fourth cylinder (24).

10. The multi-layer plate automatic feeding and drying device according to claim 9, characterized in that: The upper end of the fourth cylinder (24) is rotatably mounted between the mounting plate (25), and the mounting plate (25) is fixedly mounted on the upper surface of the device frame (1).

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