A plywood waste crushing and compressing device

Abstract

This invention discloses a crushing and compressing device for plywood waste, belonging to the field of plywood waste processing technology. The device includes a conveying section and a crushing section. The conveying section includes several staggered first and second conveying rollers, with opposing spiral directions on their surfaces. The top cross-section of the second conveying roller is lower than that of the first conveying roller. The crushing section includes two cooperating crushing roller sets, with several first and second crushing chucks stacked alternately along their rotation axis. This invention uses the intermeshing of opposing spiral directions on the first and second conveying rollers to drive the plywood waste, achieving simultaneous conveying and crushing before crushing, thus increasing the efficiency of plywood crushing. Hook-shaped feed plates separate the crushed plywood waste from the feeding space for the crushed material.

Description

Technical Field

[0001] This invention relates to the field of plywood waste processing technology, and in particular to a crushing and compressing device for plywood waste. Background Technology

[0002] Plywood waste refers to all waste materials generated during the production, processing, use, and disposal of plywood. It is a general term for wood waste containing chemical adhesives, mainly including log waste, pruning waste, and defective veneers. After being crushed and compressed, plywood waste can reduce warehouse storage space and, combined with other materials, can be processed into engineered wood products, continuing to realize its value.

[0003] Currently, the crushing and compression of plywood waste involves crushing the waste with crushing rollers and then compressing it through extrusion. However, the plywood waste conveying process is simply a single-task operation, with all crushing work still requiring the crushing rollers, resulting in insufficient crushing efficiency.

[0004] Existing technology provides a crushing and compression device for processing plywood waste, including a crushing box with a crushing mechanism on top and a compression box fixedly connected to the bottom. The compression box contains a compression and discharge mechanism, and the crushing mechanism includes a pusher, a fixed base, and a fixed frame. A cylinder is fixedly connected to the pusher. This invention compresses the crushed waste by activating a first hydraulic cylinder to push a pressure plate. The compressed waste block is located at the discharge port. Activating the first hydraulic cylinder again moves the pressure plate towards the connecting plate, causing it to push the connecting plate to the right. At this time, the sealing plate is moved to the right along the guide groove, allowing it to be collected inside the guide groove. The waste block then falls directly from the discharge port, achieving automatic compression and discharge. However, during the process of pushing the compressed plywood out after crushing, the plywood waste is continuously crushed and falls downwards, easily being sent out along with the compressed plywood waste block. The operating spaces of the two processes are not independent.

[0005] Therefore, it is necessary to develop a crushing and compression device for plywood waste to solve the above problems. Summary of the Invention

[0006] This invention provides a crushing and compression device for plywood waste, which solves the problems of the prior art where the plywood waste conveying process is only a single conveying process, all crushing work needs to be completed by crushing rollers, the crushing efficiency is not high enough, and the operating space between the crushing and feeding of plywood and the compression of the crushed material is not independent of each other.

[0007] This invention provides a crushing and compressing device for plywood waste, comprising: The conveying section includes several staggered first and second conveying rollers. The surfaces of the first and second conveying rollers are provided with teeth in opposite spiral directions. The first and second conveying rollers are engaged by the teeth, and the top cross-section of the second conveying roller is lower than the top cross-section of the first conveying roller. The crushing section includes two sets of crushing rollers that cooperate with each other. Several first and second crushing chucks are staggered along the rotation axis of the crushing roller sets. The first and second crushing chucks on the two crushing roller sets are staggered. The surface of the crushing chucks on the crushing roller sets forms a compression crushing area. The compression crushing area is crushed by the interlocking teeth of the crushing chucks on the two crushing roller sets. The intersection of the crushing chucks forms a shear crushing area.

[0008] Furthermore, the plywood waste crushing and compression equipment also includes a housing, with an inclined feed box fixedly connected to the top of the housing. The crushing part is located inside the feed box, and the feed box and the housing are connected in a continuous manner. A conveying platform is provided at the opening of the feed box connected to the other end of the housing. A feeding slide is formed between the bottom of the conveying platform and the conveying roller. The conveying platform is inclined towards the feed box.

[0009] Furthermore, the two ends of the conveying roller are rotatably connected to the inner walls of the conveying table, and a partition plate is provided at the bottom of the feed box to cooperate with the feed slide. The crushing part is located on the upper side of the partition plate.

[0010] Furthermore, a re-grinding assembly is provided inside the feed box in the direction of wood conveying in the crushing section, and the re-grinding assembly includes two cooperating grinding rollers.

[0011] Furthermore, a material collection chamber is provided inside the housing on one side where the feed box is located. A hook-shaped conveying plate is provided inside the material collection chamber. The two sides of the conveying plate are rotatably connected to the inner wall of the housing, and the side of the conveying plate near the conveying table is always in contact with the inner wall of the housing. A limiting post for use with the conveying plate is fixedly connected to the bottom of the housing. The top of the limiting post is inclined away from the conveying table, and a material pouring area is formed between the top of the limiting post and the top of the housing.

[0012] Furthermore, a positioning baffle for use with the conveying plate is provided on the side wall of the machine housing near the conveyor table, and an extrusion chamber is provided at the end of the machine housing away from the conveyor table.

[0013] Furthermore, a control cylinder is hinged to the bottom of the inner casing, and the output end of the control cylinder is hinged to the bottom of the conveyor plate; when the control cylinder is fully retracted, the conveyor plate tilts towards the side closer to the conveyor table, and the conveyor plate closes the pouring area; when the control cylinder is fully extended, the conveyor plate tilts away from the conveyor table, and the pouring area is fully opened.

[0014] Furthermore, the casing has a discharge port on one side inside the extrusion chamber, and a liftable locking baffle is provided inside the discharge port.

[0015] The present invention provides a crushing and compressing device for plywood waste, which has the following technical effects or advantages: Plywood waste is conveyed by interlocking teeth on the first and second conveyor rollers, with the top section of the first conveyor roller being higher than that of the second conveyor roller to ensure the direction of plywood waste conveying. The two conveyor rollers, through the interlocking teeth, crush the conveyed plywood waste, achieving simultaneous conveying and crushing before pulverization, thus increasing the efficiency of plywood waste crushing. A combined crushing process of compression and shearing is used in the compression and shearing zones. A single tilt of the hook-shaped feed plate allows for the quantitative delivery of plywood fragments, separating the crushed plywood waste from the material feeding space. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional schematic diagram of a plywood waste crushing and compression device provided in one embodiment of the present invention. Figure 1 ; Figure 2 This is a three-dimensional schematic diagram of the plywood waste crushing and compression equipment of the present invention. Figure 2 ; Figure 3 This is the present invention. Figure 2 Enlarged diagram of area A; Figure 4 This is a schematic cross-sectional view of a portion of the plywood waste crushing and compression equipment of the present invention. Figure 1 ; Figure 5 This is a schematic cross-sectional view of a portion of the plywood waste crushing and compression equipment of the present invention. Figure 2 ; Figure 6 This is a schematic cross-sectional view of a portion of the plywood waste crushing and compression equipment of the present invention. Figure 3 ; Figure 7 This is an enlarged planar schematic diagram of the conveying section structure of the present invention.

[0018] Figure label: 1. Conveying section; 101. First conveying roller; 102. Second conveying roller; 103. Chess teeth; 2. Crushing section; 3. Crushing roller assembly; 301. First crushing chuck; 302. Second crushing chuck; 4. Extrusion crushing zone; 5. Shearing crushing zone; 6. Machine casing; 7. Feed box; 8. Conveying platform; 9. Feed chute; 10. Partition plate; 11. Re-grinding assembly; 12. Grinding roller; 13. Collection chamber; 14. Feeding plate; 15. Limiting post; 16. Discharge area; 17. Positioning baffle; 18. Extrusion chamber; 19. Control cylinder; 20. Discharge port; 21. Locking partition plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0020] As mentioned earlier, the existing technology for conveying plywood waste involves only a single conveying process, and all crushing work needs to be completed through crushing rollers, resulting in insufficient crushing efficiency. The plywood waste is continuously crushed and falls downwards, easily being conveyed out along with the compressed plywood waste blocks, and the operating spaces for both are not independent.

[0021] To address this, the present invention provides a crushing and compressing device for plywood waste. This device uses opposing meshing teeth 103 on a first conveyor roller 101 and a second conveyor roller 102 to transmit the plywood waste. The top cross-section of the first conveyor roller 101 is higher than that of the second conveyor roller 102, ensuring the direction of plywood conveying. The two conveyor rollers mesh together via the teeth 103, crushing the conveyed plywood through a bite-like action, achieving simultaneous conveying and crushing before pulverizing, thus increasing the efficiency of plywood crushing. The crushing roller group 3 is arranged with two types of crushing chucks of different radial dimensions, stacked alternately to form a compression crushing zone 4 and a shearing crushing zone 5, achieving combined crushing of the plywood waste. The hook-shaped feed plate 14 can quantitatively deliver plywood fragments with a single tilt, increasing the uniformity of the plywood fragments compressed into blocks by the compression chamber 18, while also separating the crushed plywood waste from the discharge space for plywood waste crushing.

[0022] The following is combined Figures 1-7 This invention is described in detail.

[0023] like Figures 1-7As shown, the present invention provides a crushing and compressing device, particularly a crushing and compressing device for plywood waste. In this embodiment, the crushing and compressing device mainly includes a conveying section 1 and a crushing section 2. The conveying section 1 includes two types of conveying rollers: a first conveying roller 101 and a second conveying roller 102. The second conveying roller 102 and the first conveying roller 101 are arranged alternately, with one first conveying roller 101 adjacent to one second conveying roller 102, such as... Figure 7 As shown, the top cross-section of the second conveying roller 102 is lower than the top cross-section of the first conveying roller 101. In this way, when transporting plywood scrap, the roller group composed of the first conveying roller 101 transports synchronously. The surfaces of the conveying rollers mesh with each other through the opposing spiral directions of the clamping teeth 103. The first conveying roller 101 and the second conveying roller 102 rotate in opposite directions. Through the squeezing of the clamping teeth 103, the surface of a portion of the plywood scrap is squeezed, torn, and broken, realizing the function of the plywood surface being broken while being transported, thus accelerating the efficiency of plywood breaking.

[0024] The plywood waste crushing and compression equipment includes a housing 6, a feed box 7, and a conveyor table 8. A first conveyor roller 101 and a second conveyor roller 102 are arranged along the direction of the conveyor table 8, which is connected to the feed inlet of the feed box 7. A crushing section 2 is located inside the feed box 7, comprising two crushing roller groups 3. The arrangement direction of the crushing roller groups 3 is perpendicular to the direction of plywood waste conveying. Each crushing roller group 3 includes a first crushing chuck 301 and a second crushing chuck 302 arranged in an alternating stacked pattern. The arrangement order of the two crushing chucks on the two crushing roller groups 3 is opposite. A compression crushing zone 4 is formed on the surface of the crushing chucks of the two crushing roller groups 3, and a shearing crushing zone 5 is formed at the intersection of the crushing chucks. The compression crushing zone 4 crushes the plywood waste, while the shearing crushing zone 5 shears and pulverizes the plywood waste. Along the conveying direction of the plywood waste, a re-grinding assembly 11 is also installed inside the feed box 7. The re-grinding assembly 11 includes two cooperating grinding rollers 12, which further crush the plywood waste, making it more finely crushed. Gears are connected to the shafts of both grinding rollers 12, and the gears mesh with each other, with the grinding rollers 12 rotating in opposite directions. The shafts of the crushing roller group 3 are also meshed with each other via gears. A partition 10 is installed inside the feed box 7. Blocks are installed on the partition 10 near the crushing section 2 and at the top of the feed box 7 where the second crushing chuck 302 is located, to prevent plywood waste from leaking out from the gap between the second crushing chuck 302 and the inner wall, ensuring that the plywood is fully crushed.

[0025] The space formed between the partition 10 and the bottom of the feed box 7 is connected to the feed chute 9 formed between the bottom of the conveyor roller and the bottom of the conveyor table, and together with the broken waste generated during the conveying of plywood, it is conveyed into the interior of the housing 6. A collection chamber 13 is provided inside the housing 6 near the conveyor table 8. A conveying plate 14 is provided on the side of the collection chamber 13 inside the housing 6. The two sides of the conveying plate 14 are rotatably connected to the inner wall of the housing 6, and the cross-section of the conveying plate 14 is hook-shaped. The side of the conveying plate 14 near the conveyor table 8 is always in contact with the inner wall of the housing 6. A control cylinder 19 is hinged to the bottom of the interior of the housing 6, and the output end of the control cylinder 19 is hinged to the bottom of the conveying plate 14. The tilting direction of the conveying plate 14 is changed by extending and retracting the control cylinder 19. A positioning baffle 17 is installed inside the housing 6 near the conveyor table 8 to position the tilt of the conveying plate 14.

[0026] A limiting post 15 is fixedly connected to the bottom of the inner side of the housing 6, below the end of the conveyor plate 14 away from the conveyor table 8. The top of the limiting post 15 is in the same direction of inclination as the conveyor table 8, which facilitates fitting the inclination of the bottom of the inclined conveyor plate 14. A discharge area 16 is formed between the top of the limiting post 15 and the top of the inner side of the housing 6, for conveying the crushed plywood waste on the conveyor plate 14 away from the conveyor table 8. An extrusion chamber 18 is provided on the side of the inner side of the housing 6 away from the conveyor table 8. A discharge port 20 is opened on the inner side of the extrusion chamber 18. A locking partition 21 is set on the discharge port 20 via a track. The locking partition 21 is closed when the extrusion chamber 18 is extruding. After the extrusion is completed, the locking partition 21 is opened, and the extruded plywood waste block is pushed out from the discharge port 20. When the control cylinder 19 is fully retracted, the conveyor plate 14 tilts towards the side closer to the conveyor table 8, and the conveyor plate 14 closes the discharge area 16; when the control cylinder 19 is fully extended, the conveyor plate 14 tilts away from the conveyor table 8, and the discharge area 16 is fully opened.

[0027] Push plates are installed at the top of the extrusion chamber 18 and on the side away from the discharge port 20, and are controlled by an externally connected cylinder. Plywood waste is fed into the conveying section 1. The surface and part of the plywood waste, under the rotation of the first conveying roller 101 and the tilt of the conveying table 8, are conveyed into the feed box 7. Part of the plywood waste is bitten by the teeth 103 of the two crushing rollers and falls into the feed chute 9. Under the interference of the tilt of the conveying table 8, it is also conveyed into the feed box 7. The plywood waste conveyed from the feed box 7 by the conveying section 1 is then subjected to extrusion, shearing, and crushing in the extrusion crushing area 4 and shear crushing area 5 of the crushing roller group 3 before entering the grinding rollers 12 for re-grinding until completely crushed. The scrap falls onto the conveying plate 14 inside the collection chamber 13. After the scrap is full, the control cylinder 19 controls the conveying plate 14 to tilt towards the extrusion chamber 18. The scrap is poured into the extrusion chamber 18 through the dumping area 16. Under the pressure of the push plate at the top, it fills the entire extrusion chamber 18 and is compressed into waste blocks. Then, the locking partition 21 is opened, and the push plate on the side pushes the waste blocks out from the discharge port 20.

[0028] In summary, the plywood waste crushing and compression equipment of the present invention has the following advantages: Driven by the first conveyor roller 101 and the second conveyor roller 102, the top cross-section formed by the first conveyor roller 101 is higher than that of the second conveyor roller 102, thus conveying the plywood waste. The two conveyor rollers mesh together through the cleats 103, crushing the conveyed plywood by biting, achieving simultaneous conveying and crushing of the plywood before pulverization, increasing the efficiency of plywood crushing. The crushing roller group 3 is arranged by two crushing chucks with different radial dimensions, which are stacked alternately to form a compression crushing zone 4 and a shearing crushing zone 5, achieving combined crushing of the plywood waste. The hook-shaped feed plate 14 can quantitatively deliver the plywood fragments by a single tilt, increasing the uniformity of the plywood fragments being crushed into blocks by the compression chamber 18.

[0029] The PLC control system used to control the motor rotation and the sensors used to control the start and stop are existing technologies, common knowledge in the field, and are not part of the improvement technology in this case, so they will not be described in detail here.

[0030] In the description of this invention, it should be noted that the terms "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. The terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A crushing and compressing device for plywood waste, characterized in that, include: The conveying unit (1) includes a plurality of staggered first conveying rollers (101) and second conveying rollers (102). The surfaces of the first conveying rollers (101) and the second conveying rollers (102) are provided with teeth (103) with opposite spiral directions. The first conveying rollers (101) and the second conveying rollers (102) are engaged by the teeth (103), and the top cross-section of the second conveying roller (102) is lower than the top cross-section of the first conveying roller (101). The crushing section (2) includes two crushing roller groups (3) that cooperate with each other. The crushing roller groups (3) have a number of first crushing chucks (301) and second crushing chucks (302) stacked alternately along their rotation axis. The first crushing chucks (301) and second crushing chucks (302) on the two crushing roller groups (3) are staggered. Among them, the crushing chuck surface on the crushing roller group (3) forms a compression crushing area (4), and the compression crushing area (4) is crushed by the interlocking teeth of the crushing chucks on the two crushing roller groups (3). The intersection of the crushing chucks forms a shear crushing area (5).

2. The plywood waste crushing and compression equipment according to claim 1, characterized in that, The plywood waste crushing and compression equipment also includes a housing (6), with an inclined feed box (7) fixedly connected to the top of the housing (6). The crushing part (2) is located inside the feed box (7), and the feed box (7) and the housing (6) are connected in a through manner. The feed box (7) is connected to the other end of the housing (6) with a conveying platform (8). A feeding slide (9) is formed between the bottom of the conveying platform (8) and the conveying roller. The conveying platform (8) is inclined toward the feed box (7).

3. The plywood waste crushing and compression equipment according to claim 2, characterized in that, The two ends of the conveying roller are rotatably connected to the inner walls of the conveying platform (8), and the bottom of the feed box (7) is provided with a partition (10) for use with the feed slide (9). The crushing part (2) is located on the upper side of the partition (10).

4. The plywood waste crushing and compression equipment according to claim 2, characterized in that, The feed box (7) is equipped with a re-grinding assembly (11) in the crushing section (2) along the direction of wood conveying. The re-grinding assembly (11) includes two cooperating grinding rollers (12).

5. The plywood waste crushing and compression equipment according to claim 2, characterized in that, Inside the housing (6), a material collection chamber (13) is provided on one side where the feed box (7) is located. Inside the material collection chamber (13), a material conveying plate (14) with a hook-shaped cross section is provided. The two sides of the material conveying plate (14) are rotatably connected to the inner wall of the housing (6), and the side of the material conveying plate (14) close to the conveying table (8) is always in contact with the inner wall of the housing (6). A limiting post (15) for use with the material conveying plate (14) is fixedly connected to the bottom inside the housing (6). The top of the limiting post (15) is inclined away from the conveying table (8), and a pouring area (16) is formed between the top of the limiting post (15) and the top inside the housing (6).

6. The plywood waste crushing and compression equipment according to claim 5, characterized in that, The housing (6) has a positioning baffle (17) on the side wall near the conveyor table (8) for use with the conveyor plate (14), and an extrusion chamber (18) is provided at the end of the housing (6) away from the conveyor table (8).

7. The plywood waste crushing and compression equipment according to claim 5, characterized in that, A control cylinder (19) is hinged to the bottom of the inner casing (6). The output end of the control cylinder (19) is hinged to the bottom of the conveyor plate (14). When the control cylinder (19) is fully retracted, the conveyor plate (14) tilts towards the side closer to the conveyor table (8) and closes the pouring area (16). When the control cylinder (19) is fully extended, the conveyor plate (14) tilts away from the conveyor table (8) and the pouring area (16) is fully opened.

8. The plywood waste crushing and compression equipment according to claim 6, characterized in that, The housing (6) has a discharge port (20) on one side inside the extrusion chamber (18), and a liftable locking partition (21) is provided inside the discharge port (20).

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