Plywood prepressing device

Abstract

The utility model belongs to the technical field of plywood, and particularly relates to a plywood prepressing device which comprises an electric telescopic rod, a fixing frame is fixedly connected to the bottom end of the electric telescopic rod, a connecting plate is fixedly connected to one side of the fixing frame, an H-shaped frame is fixedly connected to the other end of the connecting plate, a first motor is fixedly installed on one side of the H-shaped frame, and a second motor is fixedly installed on the other side of the H-shaped frame. The output end of the first motor is fixedly connected with a first belt wheel, and the interior of the H-shaped frame is rotationally connected with a connecting rotating shaft. Through the arrangement of the supporting rotating shaft, the position of the supporting rotating shaft and the position of the pressing roller are designed to be eccentric, the supporting rotating shaft can drive the fixing plate to rotate when rotating, when the fixing plate rotates to the lower portion to make contact with the pressing roller, the fixing plate can achieve the slight vibration effect, and the fixing plate can make the supporting rotating shaft, the mounting base and the like move upwards along the guide rod through counter-acting force to compress the spring; after the fixing plates are separated from the pressing rollers, the springs can push the mounting bases to move downwards to reset, and the multiple fixing plates are arranged in a spiral array, so that the moving process can be repeated easily.

Description

Technical Field

[0001] This utility model belongs to the field of plywood technology, specifically relating to a plywood pre-pressing device. Background Technology

[0002] Plywood pre-pressing (also known as cold pressing) is a key process in plywood production. It involves applying pressure to the assembled veneers at room temperature to initially bond the layers together, forming a stable veneer that facilitates subsequent hot pressing. Its core objectives are: to improve initial tack by promoting glue curing through physical pressure and enhancing veneer rigidity; to optimize the production process by shortening the hot pressing cycle and increasing equipment utilization; and to facilitate transportation and handling by ensuring a stable veneer structure and reducing handling losses.

[0003] Existing plywood pre-pressing devices typically use hydraulic cylinders to control the movement of the pressure plate to press the plywood as a whole. Sometimes, after the plywood is glued, it needs to be re-glueed. However, the newly applied glue may be uneven with the first glue applied. If the plywood is pre-pressed at this time, it will reduce the bonding quality of the plywood. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a plywood pre-pressing device, which solves the problem of uneven application of glue compared to the previously applied glue.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plywood pre-pressing device, comprising an electric telescopic rod, a fixed frame fixedly connected to the bottom end of the electric telescopic rod, a connecting plate fixedly connected to one side of the fixed frame, an H-shaped frame fixedly connected to the other end of the connecting plate, a motor fixedly mounted on one side of the H-shaped frame, a pulley fixedly connected to the output end of the motor, a connecting shaft rotatably connected inside the H-shaped frame, a pulley fixedly connected to one end of the connecting shaft, and a transmission belt sleeved on the surfaces of the pulley and the pulley. A rubber wheel is fixedly connected to one end of the connecting shaft. A frame plate is fixedly connected to the bottom of the H-shaped frame. A pressure roller is slidably connected inside the frame plate. A guide rod is fixedly connected to the upper surface of the fixed frame. A mounting seat is slidably mounted on the surface of the guide rod. A spring is fixedly connected to the upper surface of the mounting seat. A support shaft is rotatably connected inside the mounting seat. A gear is fixedly connected to the surface of the support shaft. A motor is fixedly mounted on one side of the mounting seat. A gear is fixedly connected to the output end of the motor. A fixing plate is fixedly connected to the surface of the support shaft.

[0006] Preferably, a slide block is fixedly connected to the side of the electric telescopic rod, and a support rod is slidably connected inside the slide block.

[0007] Preferably, a limiting plate is fixedly connected to the top of the guide rod, and the top end of the spring is fixedly connected to the limiting plate.

[0008] Preferably, gear one and gear two mesh with each other, and the diameter of gear one is larger than that of gear two.

[0009] Preferably, the support shaft is located slightly below the center axis of the pressure roller.

[0010] Preferably, the fixing plates are arranged in a spiral array on the surface supporting the rotating shaft.

[0011] Preferably, the rubber wheels are symmetrically arranged, and the rubber wheels are in contact with the surface of the pressure roller.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This plywood pre-pressing device, with its electric telescopic rod, facilitates adjustment of the distance between the pressure roller and the plywood to be pressed. A motor drives a pulley to rotate, which in turn drives a second pulley and a rubber wheel via a transmission belt. The rubber wheel's contact with the pressure roller facilitates its rolling. An eccentrically positioned support shaft rotates, causing a fixed plate to rotate. When the fixed plate rotates to its lower position and contacts the pressure roller, it creates a slight vibration. The reaction force of the fixed plate causes the support shaft and mounting base to move upwards along the guide rod, compressing a spring. After the fixed plate separates from the pressure roller, the spring pushes the mounting base downwards to reset. Multiple spiral arrays of the fixed plate allow for repeated movement, creating a continuous, slight vibration effect that improves the uniformity of the applied glue on the plywood compared to the pre-applied glue. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model, used together with the embodiments of this utility model to explain this utility model, and do not constitute a limitation on this utility model. In the drawings:

[0015] Figure 1 This is a complete structural schematic diagram of the present invention;

[0016] Figure 2 This is a top view structural diagram of the present invention;

[0017] Figure 3 The lower view structure of this utility model Figure 1 ;

[0018] Figure 4 The lower view structure of this utility model Figure 2 .

[0019] In the diagram: 1. Electric telescopic pole; 2. Fixing frame; 3. Connecting plate; 4. H-shaped frame; 5. Motor 1; 6. Pulley 1; 7. Connecting shaft; 8. Pulley 2; 9. Transmission belt; 10. Rubber wheel; 11. Frame plate; 12. Pressure roller; 13. Guide rod; 14. Mounting base; 15. Spring; 16. Support shaft; 17. Gear 1; 18. Motor 2; 19. Gear 2; 20. Fixing plate; 21. Slide seat; 22. Support rod; 23. Limiting plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides the following technical solution: a plywood pre-pressing device, including an electric telescopic rod 1, a fixed frame 2 fixedly connected to the bottom end of the electric telescopic rod 1, a connecting plate 3 fixedly connected to one side of the fixed frame 2, an H-shaped frame 4 fixedly connected to the other end of the connecting plate 3, a motor 5 fixedly mounted on one side of the H-shaped frame 4, a pulley 6 fixedly connected to the output end of the motor 5, a connecting shaft 7 rotatably connected inside the H-shaped frame 4, a pulley 8 fixedly connected to one end of the connecting shaft 7, a transmission belt 9 sleeved on the surface of the pulley 8 and the pulley 6, and a rubber band fixedly connected to one end of the connecting shaft 7. The bottom of the rubber wheel 10 and the H-shaped frame 4 is fixedly connected to the frame plate 11. The inside of the frame plate 11 is slidably connected to the pressure roller 12. The upper surface of the fixed frame 2 is fixedly connected to the guide rod 13. The surface of the guide rod 13 is slidably mounted on the mounting seat 14. The upper surface of the mounting seat 14 is fixedly connected to the spring 15. The inside of the mounting seat 14 is rotatably connected to the support shaft 16. The surface of the support shaft 16 is fixedly connected to the gear 17. The side of the mounting seat 14 is fixedly mounted to the motor 18. The output end of the motor 18 is fixedly connected to the gear 19. The surface of the support shaft 16 is fixedly connected to the fixing plate 20.

[0022] In this embodiment, the electric telescopic rod 1 facilitates adjustment of the distance between the pressure roller 12 and the plywood to be pressed. The motor 5 drives the pulley 6 to rotate, which in turn drives the pulley 8 and rubber wheel 10 to rotate via the transmission belt 9. The rubber wheel 10, due to its contact with the surface of the pressure roller 12, facilitates the rolling of the pressure roller 12. The supporting shaft 16, with its eccentric design relative to the pressure roller 12, drives the fixed plate 20 to rotate when it rotates. When the fixed plate 20 rotates to contact the pressure roller 12 at the bottom, it will have a slight vibration effect. The fixed plate 20 can also cause the support shaft 16 and the mounting seat 14 to move upward along the guide rod 13 through the reaction force, which will compress the spring 15. After the fixed plate 20 is separated from the pressure roller 12, the spring 15 can push the mounting seat 14 to move downward and reset. The fixed plate 20 has multiple spiral arrays, which can help to repeat the above movement process, thereby forming a continuous slight vibration effect, which can help improve the uniformity of the glue applied to the plywood and the glue applied earlier.

[0023] Specifically, a slide block 21 is fixedly connected to the side of the electric telescopic rod 1, and a support rod 22 is slidably connected inside the slide block 21. The support rod 22 can provide support by being fixed, and the slide block 21 can slide along the support rod 22, which facilitates the rolling and translation of the pressure roller 12 on the plywood.

[0024] Specifically, a limiting plate 23 is fixedly connected to the top of the guide rod 13. The limiting plate 23 can prevent the mounting seat 14 from detaching from the guide rod 13, and the top of the spring 15 is fixedly connected to the limiting plate 23, which can facilitate the timely rebound of the spring 15.

[0025] Specifically, gear 17 and gear 2 19 mesh with each other, and the diameter of gear 17 is larger than that of gear 2 19. Gear 2 19 can be driven to rotate by motor 2 18. The rotation speed of gear 17 is slower than that of gear 2 19, so gear 2 19 is more likely to drive gear 17 to rotate the support shaft 16 and the fixed plate 20.

[0026] Specifically, the support shaft 16 is located slightly below the center axis of the pressure roller 12, which facilitates the contact of the fixing plate 20 with the pressure roller 12.

[0027] Specifically, the fixing plates 20 are arranged in a spiral array on the surface of the supporting shaft 16, which helps the fixing plates 20 to form a continuous slight vibration effect.

[0028] Specifically, the rubber wheels 10 are symmetrically arranged and are in contact with the surface of the pressure roller 12. The rubber wheels 10 can easily drive the pressure roller 12 to roll, thereby pre-pressing the plywood.

[0029] The working principle or usage process of this utility model is as follows: Before use, the support rod 22 needs to be fixed. Then, the distance between the pressure roller 12 and the plywood to be pressed is adjusted by controlling the electric telescopic rod 1. Next, motor 5 and motor 18 can be started simultaneously. Motor 5 drives pulley 6 to rotate, and pulley 6 drives pulley 8 and rubber wheel 10 to rotate through the transmission belt 9. Since the rubber wheel 10 is in contact with the surface of the pressure roller 12, it is beneficial to drive the pressure roller 12 to roll, so that the pressure roller 12 can pre-press the plywood. The motor 5 can be controlled to rotate forward or backward, which is beneficial to make the pressure roller 12 circulate and press down on the plywood. Motor 18 drives gear 19 to rotate. The rotation speed of gear 17 is slower than that of gear 19, so gear 19 is beneficial to drive gear 17. 7. The support shaft 16 and the fixing plate 20 are rotated. The support shaft 16 and the pressure roller 12 are eccentrically designed. When the fixing plate 20 rotates to the bottom and contacts the pressure roller 12, the fixing plate 20 will have a slight vibration effect. The fixing plate 20 can also cause the support shaft 16 and the mounting seat 14 to move upward along the guide rod 13 through the reaction force, which will compress the spring 15. After the fixing plate 20 is separated from the pressure roller 12, the spring 15 can push the mounting seat 14 to move downward and reset. The fixing plate 20 has multiple spiral arrays, which can facilitate the repetition of the above movement process, thereby forming a continuous slight vibration effect. This can help improve the uniformity of the glue applied to the plywood and the glue applied earlier. The electrical equipment in this device is all externally powered and is controlled by the matching control switch to operate and shut down.

[0030] Finally, it should be noted that the above descriptions are merely preferred embodiments of this utility model and are not intended to limit the utility model. The selection and detailed description of these embodiments in this specification are for the purpose of better explaining the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A plywood pre-pressing device, comprising an electric telescopic rod (1), a fixed frame (2) is fixedly connected to the bottom end of the electric telescopic rod (1), characterized in that: A connecting plate (3) is fixedly connected to one side of the fixed frame (2), and an H-shaped frame (4) is fixedly connected to the other end of the connecting plate (3). A motor (5) is fixedly installed on one side of the H-shaped frame (4), and a pulley (6) is fixedly connected to the output end of the motor (5). A connecting shaft (7) is rotatably connected inside the H-shaped frame (4), and a pulley (8) is fixedly connected to one end of the connecting shaft (7). A transmission belt (9) is sleeved on the surface of the pulley (8) and the pulley (6). A rubber wheel (10) is fixedly connected to one end of the connecting shaft (7), and a frame plate (11) is fixedly connected to the bottom of the H-shaped frame (4). A pressure roller (12) is slidably connected inside the plate (11). A guide rod (13) is fixedly connected to the upper surface of the fixed frame (2). A mounting seat (14) is slidably installed on the surface of the guide rod (13). A spring (15) is fixedly connected to the upper surface of the mounting seat (14). A support shaft (16) is rotatably connected inside the mounting seat (14). A gear (17) is fixedly connected to the surface of the support shaft (16). A motor (18) is fixedly installed on one side of the mounting seat (14). A gear (19) is fixedly connected to the output end of the motor (18). A fixing plate (20) is fixedly connected to the surface of the support shaft (16).

2. A device for pre-pressing plywood according to claim 1, characterized in that: The electric telescopic rod (1) is fixedly connected to a slide block (21) on its side, and a support rod (22) is slidably connected inside the slide block (21).

3. The plywood pre-pressing device according to claim 1, wherein: The top of the guide rod (13) is fixedly connected to the limiting plate (23), and the top of the spring (15) is fixedly connected to the limiting plate (23).

4. The plywood pre-press apparatus of claim 1, wherein: The gear one (17) meshes with the gear two (19), and the diameter of the gear one (17) is larger than that of the gear two (19).

5. The plywood pre-press apparatus of claim 1, wherein: The support shaft (16) is located slightly below the center axis of the pressure roller (12).

6. The plywood pre-press apparatus of claim 1, wherein: The fixing plate (20) is arranged in a spiral array on the surface of the supporting shaft (16).

7. The plywood pre-press apparatus of claim 1, wherein: The rubber wheels (10) are symmetrically arranged, and the rubber wheels (10) are in contact with the surface of the pressure roller (12).

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