Self-adaptive prepressing device

Abstract

The utility model discloses a self-adaptive prepressing device which is characterized in that a rack is provided with a conveying belt, the conveying belt is suitable for conveying a paving plate, the two ends of a limiting mandrel are connected with the rack, an eccentric moving roller surrounds the limiting mandrel, an eccentric moving gap is formed between the inner diameter of the eccentric moving roller and the outer diameter of the limiting mandrel, and the eccentric moving roller is suitable for rolling the paving plate on the conveying belt; and the device is suitable for deviating based on the height distribution of the paving plates. Compared with the prior art, the bias rollers can synchronously float up and down, move front and back and / or tilt left and right, and the prepressing flatness in the length direction and the width direction of the paving plate is good; the roller mode is adopted instead of the roller form, the curvature of the roller is large, the roller has gentle pre-pressing transition change, the paving plate can be stably and flatly pressed, and the pre-pressing forming quality of the paving plate is improved.

Description

Technical Field

[0001] The utility model relates to a particle board pressing and forming device, in particular to an adaptive pre-pressing device. Background Art

[0002] Particleboard is obtained by pressing and molding glue-mixed wood particles; specifically, the glue-mixed wood particles are laid on a moving conveyor belt to form a paving board, a pre-pressing device pre-presses the paving board, and a heating and heavy pressing device performs final hot pressing and shaping on the pre-pressed board.

[0003] In the prior art, the pre-stressing device adopts a swing frame, one end of which is hinged to the frame and the other end is rotatably connected to a roller. Based on the local slight unevenness of the paving board in the length direction and the corresponding unevenness, the swing frame can adaptively pitch and swing, so as to pre-stress and flatten the paving board to a certain extent.

[0004] However, in this swing type preloading device, the roller cannot swing relative to each other at both ends, that is, the roller cannot be adaptively high at one end and low at the other end. When the paving board has a local slight unevenness in the width direction, the preloading and leveling effect brought by the swing frame roller is not ideal.

[0005] On the other hand, it was found that in this type of swing-type preloading device, the roller should not be set too large; therefore, the curvature of the roller is small, the transition of the paving board is not smooth enough, and the quality of the preloading board obtained by preloading is not ideal, with a certain amount of cracking and loose shavings. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems mentioned above and provides an adaptive pre-pressing device. The pre-pressing flatness of the paving board in the length and width directions is good, and the roller has a relatively smooth pre-pressing transition change, which is convenient for the paving board to be smoothly pressed and formed.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] An adaptive preloading device includes a frame, a limiting core shaft and a deflection roller, wherein the frame is provided with a conveyor belt, the conveyor belt is suitable for transmitting paving boards, the two ends of the limiting core shaft are connected to the frame, the deflection roller surrounds the limiting core shaft, a deflection gap is provided between the inner diameter of the deflection roller and the outer diameter of the limiting core shaft, the deflection roller is suitable for rolling the paving boards on the conveyor belt, and is suitable for deflecting based on the height distribution of the paving boards.

[0009] Compared with the prior art, the beneficial effects of the present application include: the offset roller can float up and down, move forward and backward, and / or tilt left and right synchronously, and the pre-pressing flatness of the paving board in the length and width directions is good; a roller method is adopted instead of a roller shape, the roller curvature is larger, and the roller has a smoother pre-pressing transition change, which is convenient for the paving board to be pressed and flattened smoothly, thereby improving the pre-pressing forming quality of the paving board.

[0010] As an improvement of the above technical solution, the frame is provided with two anti-wear components corresponding to the two ends of the deflecting roller respectively, and the anti-wear components include anti-wear rollers, and the surrounding walls of the anti-wear rollers are suitable for the end of the moving deflecting roller to contact with the end, so that the end of the deflecting roller is kept spaced from the frame.

[0011] As an improvement of the above technical solution, the anti-wear component includes a mounting seat, a string rod and a spacer spring. The mounting seat is connected to the frame, and at least two string rods are obliquely protruded on the mounting seat. The spacer spring and the anti-wear roller are both sleeved on the string rod. The spacer spring is suitable for supporting the anti-wear roller so that the lower end of the anti-wear roller maintains a preparatory gap with the mounting seat.

[0012] As an improvement of the above technical solution, the anti-wear roller includes a metal inner cylinder and a rubber outer cylinder.

[0013] As an improvement of the above technical solution, a weight-increasing roller is also included, and the weight-increasing roller is suitable for rolling on the inner bottom of the deflecting roller.

[0014] As an improvement of the above technical solution, a plurality of inner ring flanges are protruding from the inner wall of the deflecting roller, and the inner ring flanges extend along the circumference of the deflecting roller. The plurality of inner ring flanges are spaced apart along the axial direction of the deflecting roller, and the cross-section of the inner ring flange is semicircular, and the straight line edge of the semicircle coincides with the inner wall of the deflecting roller, and the arc edge of the semicircle is suitable for being tangent to the outer peripheral wall of the limiting core shaft.

[0015] As an improvement of the above technical solution, it also includes a weight-gaining roller, which is suitable for rolling on the inner bottom of the deflecting roller. Outer ring flanges are provided at both ends of the weight-gaining roller. The outer ring flanges extend circumferentially along the weight-gaining roller. The inner ring flange in the middle of the deflecting roller is suitable for being tangent to the outer peripheral wall of the weight-gaining roller. The inner ring flanges at both ends of the deflecting roller are suitable for stopping the outer ring flanges of the weight-gaining roller.

[0016] As an improvement of the above technical solution, the deflection roller includes a roller body and an end side swivel rotatably connecting two ends of the roller body.

[0017] As an improvement of the above technical solution, both ends of the roller body are provided with externally connected stepped shafts, the externally connected stepped shafts are suitable for rotating sleeve connection with the end side swivel, the externally connected stepped shafts are provided with an annular groove, the annular groove extends along the circumference of the externally connected stepped shaft, at least two limit screws are threadedly connected to the peripheral wall of the end side swivel, and the limit screws are provided with a ball head suitable for inserting into the annular groove.

[0018] As an improvement of the above technical solution, it also includes a follow-up sweeping brush assembly, which includes a positioning spring, a slide seat, and a roller brush. Both ends of the roller brush are rotatably connected to the slide seat, and the slide seat is suitable for sliding connection to the frame. One end of the positioning spring is connected to the frame, and the other end pushes the slide seat so that the bristles of the roller brush contact the outer peripheral wall of the deflecting roller. The slide seat is provided with a collecting platform located below the roller brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is a schematic structural diagram of an adaptive preloading device according to an embodiment of the utility model;

[0021] Figure 2 for Figure 1 A cross-sectional view showing an adaptive preload device;

[0022] Figure 3 for Figure 1 An exploded view of the adaptive preload device is shown;

[0023] Figure 4 for Figure 3 A schematic diagram showing a biasing roller and a weight-increasing roller of an adaptive pre-pressing device;

[0024] Figure 5 for Figure 4 An exploded view showing the structure;

[0025] Figure 6 for Figure 3 A schematic diagram showing the structure of the anti-wear component of the adaptive preloading device;

[0026] Figure 7 for Figure 6 An exploded view of the wear protection assembly is shown.

[0027] The accompanying drawings are only one specific embodiment of the present invention, and the form and structure of this specific embodiment should not limit the expansion of other embodiments.

[0028] Rack 100;

[0029] Limiting mandrel 200;

[0030] Deflection roller 300, inner ring flange 310;

[0031] Anti-wear assembly 400, mounting seat 410, string rod 420, spacer spring 430, anti-wear roller 440, transition washer 450, and ring 451;

[0032] Weight-increasing roller 500, outer ring flange 510;

[0033] Paving board 600. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Reference Figures 1 to 3 The utility model provides an adaptive preloading device, including a frame 100, a limiting core shaft 200 and a deflecting roller 300. The frame 100 is provided with a conveyor belt, which is suitable for transmitting a paving board 600. Both ends of the limiting core shaft 200 are connected to the frame 100. The deflecting roller 300 surrounds the limiting core shaft 200. A deflecting gap is set between the inner diameter of the deflecting roller 300 and the outer diameter of the limiting core shaft 200. The deflecting roller 300 is suitable for rolling the paving board 600 on the conveyor belt, and is suitable for deflecting based on the height distribution of the paving board 600.

[0036] Reference Figures 1 to 3 , the conveyor belt is hidden, and a workbench is set on the frame 100. The workbench is suitable for supporting the upper section of the conveyor belt so that the conveyor belt can transmit and support the paving board 600, and the lower section of the conveyor belt is located below the workbench.

[0037] Reference Figures 1 to 3 The operation process of the utility model is as follows: the paving board 600 is continuously transported on the conveyor belt, the deflection roller 300 continuously rolls the paving board 600, and the continuously flowing paving board 600 also drives the deflection roller 300 to continuously roll;

[0038] When the paving board 600 is uneven in the length direction and / or width direction, the deflecting roller 300 floats up and down, moves forward and backward, and / or tilts left and right to pre-press and level the unevenness of the paving board 600 in the length direction and width direction.

[0039] Compared with the prior art, the beneficial effects of the present application include: the biasing roller 300 can float up and down, move forward and backward, and / or tilt left and right synchronously, and the pre-pressing flatness of the paving board 600 in the length and width directions is good; a roller method is adopted instead of a roller shape, the roller has a larger curvature, and the roller has a smoother pre-pressing transition change, which is convenient for the paving board 600 to be pressed and flattened smoothly, thereby improving the pre-pressing molding quality of the paving board 600.

[0040] Reference Figures 1 to 3 In some embodiments of the present invention, the frame 100 is provided with two anti-wear components 400 corresponding to the two ends of the deflection roller 300 respectively, and the anti-wear component 400 includes an anti-wear roller 440. The peripheral wall of the anti-wear roller 440 is suitable for the end of the moving deflection roller 300 to abut against it, so that the end of the deflection roller 300 is kept at a distance from the frame 100 to prevent the rolling deflection roller 300 from abrading the frame 100, that is, the anti-wear roller 440 is suitable for preventing the frame 100 from being abraded; the anti-wear roller 440 can be replaced after being abraded, and the equipment cost and maintenance labor of the anti-wear roller 440 are lower than those of the frame 100, and the anti-wear roller 440 is in the form of a roller, which has little effect on the damping of the deflection roller 300.

[0041] Reference Figures 1 to 3 , Figure 6 and Figure 7 In some embodiments of the present invention, the anti-wear assembly 400 includes a mounting seat 410, a string rod 420 and a spacer spring 430. The mounting seat 410 is connected to the frame 100. At least two string rods 420 are obliquely protruded on the mounting seat 410. The spacer spring 430 and the anti-wear roller 440 are both sleeved with the string rod 420. The spacer spring 430 is suitable for supporting the anti-wear roller 440 so that the lower end of the anti-wear roller 440 maintains a preparatory gap with the mounting seat 410. When the deflection roller 300 floats up and down and / or moves forward and backward, the deflection roller 300 rubs against the anti-wear roller 440. The anti-wear roller 440 can adaptively move to a certain extent while rotating, further reducing the damping of the anti-wear roller 440 on the deflection roller 300.

[0042] In some embodiments, the anti-wear assembly 400 mainly uses two horizontal string rods 420, and the two anti-wear rollers 440 corresponding to the two horizontal string rods 420 are horizontally arranged, and the two ends of the anti-wear rollers 440 are provided with a spacer spring 430. When the biasing roller 300 floats up and down and / or moves forward and backward, the anti-wear rollers 440 also move adaptively.

[0043] In some embodiments of the present invention, the anti-wear roller 440 includes a metal inner cylinder and a rubber outer cylinder, such as a PVC outer cylinder or a resin outer cylinder, which has high anti-wear properties and relatively low surface damping.

[0044] Reference Figure 3 , Figure 6and Figure 7 In some embodiments of the utility model, the anti-wear component 400 also includes a transition washer 450, and the protection spring 430 pushes the anti-wear roller 440 through the transition washer 450. A circular ring 451 is provided at the upper end of the transition washer 450. The cross-section of the circular ring 451 is a semicircle. The plane end of the circular ring 451 coincides with the upper end of the transition washer 450, and the arc end of the circular ring 451 is suitable for supporting the anti-wear roller 440.

[0045] Reference Figures 2 to 5 In some embodiments of the present invention, a weight-increasing roller 500 is further included, and the weight-increasing roller 500 is suitable for rolling on the inner bottom of the deflecting roller 300. Based on the pre-pressure required by the paving board 600, the weight-increasing roller 500 of different weights is appropriately replaced; the weight-increasing roller 500 only needs to be directly placed in the deflecting roller 300, and the replacement of the weight-increasing roller 500 is relatively convenient. It can be understood that the limiting mandrel 200 can be set at an appropriate height to reduce the contact between the limiting mandrel 200 and the weight-increasing roller 500; and / or the deflecting roller 300, the limiting mandrel 200, and / or the weight-increasing roller 500 are provided with a certain annular flange.

[0046] Reference Figure 2 and Figure 3 In some embodiments of the present invention, the inner wall of the deflection roller 300 is provided with a plurality of inner ring flanges 310, the inner ring flanges 310 extend along the circumference of the deflection roller 300, and the plurality of inner ring flanges 310 are spaced apart along the axial direction of the deflection roller 300, and the cross section of the inner ring flange 310 is semicircular, the straight edge of the semicircle coincides with the inner wall of the deflection roller 300, and the arc edge of the semicircle is suitable for being tangent to the outer peripheral wall of the limiting core shaft 200. In the present invention, the friction between the deflection roller 300 and the limiting core shaft 200 is small, and the deflection roller 300 rolls smoothly.

[0047] Reference Figures 2 to 5 In some embodiments of the utility model, a weight-increasing roller 500 is further included. The weight-increasing roller 500 is suitable for rolling on the inner bottom of the deflecting roller 300. Outer ring flanges 510 are provided at both ends of the weight-increasing roller 500. The outer ring flanges 510 extend circumferentially along the weight-increasing roller 500. The inner ring flange 310 in the middle of the deflecting roller 300 is suitable for being tangent to the outer peripheral wall of the weight-increasing roller 500. The inner ring flanges 310 at both ends of the deflecting roller 300 are suitable for stopping the outer ring flanges 510 of the weight-increasing roller 500 to prevent the weight-increasing roller 500 from separating from the deflecting roller 300.

[0048] In some embodiments of the present invention, the deflection roller 300 includes a roller body and end swivels rotatably connecting the two ends of the roller body. In the present invention, even if the end swivels scrape against the frame 100, the roller body can still roll smoothly, effectively ensuring the rolling pre-compression of the roller body.

[0049] In some embodiments of the utility model, externally connected stepped shafts are provided at both ends of the roller body. The externally connected stepped shafts are suitable for rotatable sleeve connection with the end side swivels. The externally connected stepped shafts are provided with an annular groove, which extends along the circumference of the externally connected stepped shaft. At least two limit screws are threaded through the circumferential wall of the end side swivels, and the limit screws are provided with ball heads suitable for inserting into the annular grooves, which not only prevent the end side swivels from separating from the roller body, but also ensure smooth rotation between the roller body and the end side swivels.

[0050] In some embodiments of the utility model, a follow-up sweeping brush assembly is also included, and the follow-up sweeping brush assembly includes a positioning spring, a slide seat, and a roller brush. The two ends of the roller brush are rotatably connected to the slide seat, and the slide seat is suitable for sliding connection to the frame 100. One end of the positioning spring is connected to the frame 100, and the other end pushes the slide seat, so that the bristles of the roller brush contact the outer peripheral wall of the deflection roller 300. The slide seat is provided with a collection platform located below the roller brush. It can be understood that the paving machine of the prior art spreads the shavings / shavings on the conveyor belt, and the local unevenness / unevenness of the obtained paving board 600 is small, so the up and down floating, forward and backward movement, and left and right tilting of the deflection roller 300 during pre-stressing are small, the positioning spring pushes the roller brush with a small force, and the roller brush maintains a small force against the deflection roller 300, and the roller brush has a small damping to the deflection rolling.

[0051] The above embodiments are only used to illustrate the technical solution of the utility model but not to limit it. Any modification or equivalent substitution that does not deviate from the spirit and scope of the utility model shall be included in the scope of the technical solution of the utility model.

Claims

1. An adaptive preloading device, characterized in that: include: A frame is provided with a conveyor belt, wherein the conveyor belt is suitable for conveying paving boards; A limiting mandrel, with two ends connected to the frame; A deflection roller surrounds the limiting core shaft, and a deflection gap is set between the inner diameter of the deflection roller and the outer diameter of the limiting core shaft. The deflection roller is suitable for rolling the paving board on the conveyor belt and is suitable for deflection based on the height distribution of the paving board.

2. The adaptive preloading device according to claim 1, characterized in that: The frame is provided with two anti-wear components corresponding to the two ends of the deflection roller respectively, and the anti-wear components include anti-wear rollers, and the peripheral walls of the anti-wear rollers are suitable for the end of the moving deflection roller to abut against it, so that the end of the deflection roller is kept spaced from the frame.

3. The adaptive preloading device according to claim 2, characterized in that: The anti-wear component includes a mounting seat, a string rod and a spacer spring. The mounting seat is connected to the frame. At least two string rods are obliquely protruded on the mounting seat. The spacer spring and the anti-wear roller are both sleeved on the string rod. The spacer spring is suitable for supporting the anti-wear roller so that the lower end of the anti-wear roller maintains a preparatory gap with the mounting seat.

4. The adaptive preloading device according to claim 3, characterized in that: The anti-wear roller comprises a metal inner cylinder and a rubber outer cylinder.

5. The adaptive preloading device according to any one of claims 1 to 4, characterized in that: A weighted roller is also included, and the weighted roller is suitable for rolling on the inner bottom of the deflecting drum.

6. The adaptive preloading device according to any one of claims 1 to 4, characterized in that: The inner wall of the deflection roller is provided with a plurality of inner ring flanges, the inner ring flanges extend along the circumference of the deflection roller, the plurality of inner ring flanges are spaced apart along the axial direction of the deflection roller, the cross-section of the inner ring flange is semicircular, the straight line edge of the semicircle coincides with the inner wall of the deflection roller, and the arc edge of the semicircle is suitable for being tangent to the outer peripheral wall of the limiting core shaft.

7. The adaptive preloading device according to claim 6, characterized in that: It also includes a weight-increasing roller, which is suitable for rolling on the inner bottom of the deflecting roller. Outer ring flanges are arranged at both ends of the weight-increasing roller, and the outer ring flanges extend circumferentially along the weight-increasing roller. The inner ring flange in the middle of the deflecting roller is suitable for being tangent to the outer peripheral wall of the weight-increasing roller. The inner ring flanges at both ends of the deflecting roller are suitable for stopping the outer ring flanges of the weight-increasing roller.

8. The adaptive preloading device according to any one of claims 1 to 4, characterized in that: The deflection roller comprises a roller body and an end side swivel which rotatably connects two ends of the roller body.

9. The adaptive preloading device according to claim 8, characterized in that: Both ends of the roller body are provided with externally connected stepped shafts, which are suitable for rotating sleeve connection with the end side swivel. The externally connected stepped shaft is provided with an annular groove, which extends along the circumference of the externally connected stepped shaft. At least two limit screws are threadedly connected to the peripheral wall of the end side swivel, and the limit screws are provided with a ball head suitable for inserting into the annular groove.

10. The adaptive preloading device according to any one of claims 1 to 4, characterized in that: It also includes a follow-up sweeping brush assembly, which includes an adjustment spring, a slide seat, and a roller brush. Both ends of the roller brush are rotatably connected to the slide seat, and the slide seat is suitable for being slidably connected to the frame. One end of the adjustment spring is connected to the frame, and the other end pushes the slide seat so that the bristles of the roller brush contact the outer peripheral wall of the deflecting roller. The slide seat is provided with a collecting platform located below the roller brush.

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