Veneer rotary cutter with uniform thickness

Abstract

The veneer rotary cutter comprises an L-shaped operation table, a material guiding frame and a movable seat which are in clearance fit are fixedly and slidably installed on the two sides of the upper end face of the operation table, and two limiting rollers which are symmetrically arranged are rotatably installed on the inner side of the movable seat; a motor box rotationally connected with a driving roller through a transmission belt is fixedly installed on the upper end face of the material guiding frame, a flow guiding slope is fixedly installed in the material guiding frame, a rotary knife is arranged below the driving roller, and two symmetrically-arranged limiting rotating seats are fixedly installed on the inner side of the material guiding frame. The two sides of the rotary cutter are fixedly provided with limiting rotating rods rotationally connected with the two limiting rotating bases, positioning tooth blocks are installed in the outer positioning tooth grooves and the inner positioning tooth grooves in an inserted mode, and threaded rods in threaded fit with the positioning tooth blocks are rotationally installed in the outer positioning tooth grooves. And uniform rotary cutting thickness is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of veneer production and processing, specifically a veneer ... Background Technology

[0002] Due to their thinness, rotary-cut veneer has become the main raw material for plywood. During production, veneer is cut from the outer surface of the tree using a rotary cutter and drive rollers, transforming columnar wood into sheet-like veneers. However, existing plywood models use veneer of varying thicknesses, necessitating adjustments to the thickness of the rotary-cut veneer. Currently, the rotary cutters in existing rotary cutters are fixed, requiring the use of a fixed adhesive to bond multiple thinner veneers. This adhesive bonding method is unreliable in ensuring board strength, wastes materials, and the chemical components in the adhesive can degrade board quality. Therefore, we propose a rotary-cut veneer machine with uniform thickness. Utility Model Content

[0003] The purpose of this invention is to provide a veneer rotary cutting machine with uniform thickness to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a veneer rotary cutting machine with uniform thickness, comprising an L-shaped operating table. A guide frame and a movable seat with clearance fit are fixedly and slidably installed on both sides of the upper surface of the operating table. Two symmetrically arranged limiting rollers are rotatably installed inside the movable seat. A drive roller is rotatably installed inside the guide frame via an ear plate. A motor housing is fixedly installed on the upper surface of the guide frame and rotatably connected to the drive roller via a transmission belt. A guide slope is fixedly installed inside the guide frame. A rotary cutter is provided below the drive roller. An elastic guide plate is fixedly installed between the rotary cutter and the guide slope. Two symmetrically arranged limiting rotating seats are fixedly installed inside the guide frame. Limiting rotating rods rotatably connected to the two limiting rotating seats are fixedly installed on both sides of the rotary cutter. Matching outer and inner positioning tooth grooves are formed on the opposing end faces of the limiting rotating seats and the limiting rotating rods. Positioning tooth blocks are inserted into the outer and inner positioning tooth grooves. A threaded rod that threadedly engages with the positioning tooth block is rotatably installed in the outer positioning tooth groove.

[0005] Preferably, the width of the outer positioning tooth groove and the positioning tooth block are matched, and the width of both is twice the width of the inner positioning tooth groove. A rotating hole communicating with the outer positioning tooth groove is provided on the periphery of the outer positioning tooth groove. A rotating plate is rotatably installed in the rotating hole, and the threaded rod is fixedly installed on the inner end face of the rotating plate.

[0006] Preferably, the rotary cutter includes a cutter holder that is inserted into its outer side. The cutter holder is fixedly installed on the inner end of the limiting rotation rod. A cutter groove is provided on the outer side of the cutter holder. A connecting plate that is inserted into the cutter groove is fixedly installed on the outer side of the rotary cutter.

[0007] Preferably, a first positioning tooth groove is provided on the lower side of the connecting plate, and a positioning tooth plate is slidably installed between the inner cavity sidewalls of the first positioning tooth groove and inserted therein. A limit insertion hole is provided on the lower side of the knife groove, and a positioning screw that is inserted into the limit insertion hole is fixedly installed on the lower end face of the positioning tooth plate. A threaded ring that is threadedly engaged with the positioning screw is rotatably installed on the lower periphery of the limit insertion hole.

[0008] Preferably, a hydraulic cylinder is fixedly installed on the upper surface of the operating platform and fixedly connected to the outer end of the movable seat. A symmetrically arranged limit frame is fixedly installed on both sides of the inner end face of the movable seat. Matching movable connecting seats are slidably installed on the upper and lower sides of the inner cavity of the limit frame. The limit roller is rotatably installed between the left and right movable connecting seats.

[0009] Preferably, positioning plates are fixedly installed at the upper and lower ends of the outer side of the limiting frame, and movable plates matching the position of the positioning plates are fixedly installed on the outer side of the movable connecting seats on the upper and lower sides. A limiting rod that is inserted into the two movable plates is fixedly installed between the two positioning plates, and a spring sleeved around the limiting rod is fixedly installed between the adjacent positioning plates and the movable plates.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This type of veneer rotary cutting machine with uniform thickness can adjust the angle of the rotary blade by rotating the limiting rotating rod and the limiting rotating seat below the drive roller, thereby adjusting the distance between the two and thus adjusting the cutting thickness. In addition, with the help of the threaded rod, the rotary blade can be positioned by the insertion effect between the positioning tooth block and the outer positioning tooth groove and the inner positioning tooth groove, ensuring uniform cutting thickness.

[0012] This type of veneer veneer veneer veneer machine with uniform thickness, through the insertion and cooperation between the veneer blade and the blade holder, can ensure the tangential direction of the veneer blade and the drive roller by adjusting their angle, and can adjust the position of the veneer blade to ensure the veneer blade's veneer effect on the trees. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal disassembled structure of the positioning tooth block of this utility model;

[0016] Figure 4 This is a schematic diagram of the internal disassembled structure of the tool holder of this utility model;

[0017] Figure 5 This is a schematic diagram of the internal disassembled structure of the limiting frame of this utility model.

[0018] In the picture:

[0019] 1. Operating table; 11. Guide frame; 12. Drive roller; 13. Motor housing; 14. Guide slope; 15. Elastic guide plate;

[0020] 2. Turning cutter; 21. Tool holder; 22. Limiting rotating seat; 23. Limiting rotating rod; 24. Inner positioning tooth groove; 25. Outer positioning tooth groove; 26. Positioning tooth block; 27. Rotating hole; 28. Rotating plate; 29. ​​Threaded rod;

[0021] 3. Tool groove; 31. Connecting plate; 32. First positioning tooth groove; 33. Positioning tooth plate; 34. Limiting insertion hole; 35. Positioning screw; 36. Threaded ring;

[0022] 4. Movable seat; 41. Limiting roller; 42. Hydraulic cylinder; 43. Limiting frame; 44. Movable connecting seat; 45. Positioning plate; 46. Movable plate; 47. Limiting rod; 48. Spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5This utility model provides a technical solution: a veneer veneer veneer veneer veneer machine with uniform thickness, including an L-shaped operating table 1. A guide frame 11 and a movable seat 4 are fixedly and slidably mounted on both sides of the upper surface of the operating table 1, with clearance fit. Two symmetrically arranged limiting rollers 41 are rotatably mounted inside the movable seat 4. A drive roller 12 is rotatably mounted inside the guide frame 11 via an ear plate. A motor housing 13 is fixedly mounted on the upper surface of the guide frame 11 and rotatably connected to the drive roller 12 via a transmission belt. A guide slope 14 is fixedly mounted inside the guide frame 11. A rotary blade 2 is located below the drive roller 12. An elastic guide plate 15 is fixedly installed between the rotary cutter 2 and the guide slope 14. Two symmetrically arranged limiting rotating seats 22 are fixedly installed inside the guide frame 11. Limiting rotating rods 23 that are rotatably connected to the two limiting rotating seats 22 are fixedly installed on both sides of the rotary cutter 2. The opposing end faces of the limiting rotating seats 22 and the limiting rotating rods 23 are provided with matching outer positioning tooth grooves 25 and inner positioning tooth grooves 24. Positioning tooth blocks 26 are inserted into the outer positioning tooth grooves 25 and inner positioning tooth grooves 24. A threaded rod 29 that is threadedly engaged with the positioning tooth block 26 is rotatably installed in the outer positioning tooth groove 25.

[0025] Working principle: When it is necessary to adjust the veneer cutting thickness, the rotary cutter 2 rotates below the drive roller 12 through the rotational engagement between the limiting rotating rod 23 and the two limiting rotating seats 22, thereby adjusting the distance between them and achieving the effect of adjusting the veneer cutting thickness. At the outer end of the limiting rotating seat 22, the threaded rod 29 rotates. Under the restriction of the movement direction of the positioning tooth block 26 by the outer positioning tooth groove 25, the rotating threaded rod 29 can drive the positioning tooth block 26 to move inward through the threaded engagement between it and the positioning tooth block 26, so that the positioning tooth block 26 simultaneously engages with the outer positioning tooth groove 25 and the inner positioning tooth groove 24, achieving the effect of positioning the rotary cutter 2 and ensuring uniform veneer cutting thickness.

[0026] During rotary cutting, the tree is placed between the drive roller 12 and the two limiting rollers 41. By pushing the movable seat 4, the limiting rollers 41 are moved inward to limit the tree. The motor inside the motor box 13 is started, and through its outer output shaft and transmission belt, the drive roller 12 is driven. In conjunction with the rotating limiting rollers 41, the tree can be rotated. In conjunction with the rotary cutter 2, the tree is rotary cut. The guide frame 11 and the guide slope 14 are set to guide the veneer after rotary cutting. The elastic guide plate 15 is set to fill the gap between the rotary cutter 2 and the guide slope 14 after the rotary cutter 2 is adjusted, so as to prevent the veneer from falling into the gap.

[0027] Specifically, the widths of the outer positioning tooth groove 25 and the positioning tooth block 26 are matched, and the width of both is twice the width of the inner positioning tooth groove 24. The outer positioning tooth groove 25 is provided with a rotating hole 27 that communicates with it. A rotating plate 28 is rotatably installed in the rotating hole 27, and a threaded rod 29 is fixedly installed on the inner end face of the rotating plate 28.

[0028] The width of the outer positioning tooth groove 25, the positioning tooth block 26, and the inner positioning tooth groove 24 is limited. When the positioning tooth block 26 moves to the inner end of the inner positioning tooth groove 24, the positioning tooth block 26 can be simultaneously inserted with the outer positioning tooth groove 25 and the inner positioning tooth groove 24. A rotating hole 27 is provided to limit the movement direction of the rotating plate 28. By rotating the rotating plate 28, the threaded rod 29 can be driven to rotate within the outer positioning tooth groove 25.

[0029] It is worth noting that the rotary cutter 2 includes a cutter holder 21 that is inserted into the outside of the cutter holder 2. The cutter holder 21 is fixedly installed at the inner end of the limiting rotation rod 23. A cutter groove 3 is provided on the outer side of the cutter holder 2. A connecting plate 31 that is inserted into the cutter groove 3 is fixedly installed on the outer side of the rotary cutter 2. A first positioning tooth groove 32 is provided on the lower side of the connecting plate 31. A positioning tooth plate 33 that is inserted into the inner wall of the first positioning tooth groove 32 is slidably installed between the inner wall of the first positioning tooth groove 32. A limiting insertion hole 34 is provided on the lower side of the cutter groove 3. A positioning screw 35 that is inserted into the limiting insertion hole 34 is fixedly installed on the lower end face of the positioning tooth plate 33. A threaded ring 36 that is threadedly engaged with the positioning screw 35 is rotatably installed on the lower periphery of the limiting insertion hole 34.

[0030] By interlocking the connecting plate 31 with the blade groove 3, and adjusting its angle, the tangential direction of the rotary blade 2 and the drive roller 12 can be ensured. The position of the rotary blade 2 can be adjusted so that its front end is at the tangent point, thereby ensuring the rotary cutting effect of the rotary blade 2 on the tree. Then, at the lower end of the blade holder 21, the threaded ring 36 is rotated. Under the restriction of the movement direction of the positioning tooth plate 33 in the inner cavity of the first positioning tooth groove 32, the rotating threaded ring 36 drives the positioning tooth plate 33 to move through the threaded engagement between it and the positioning screw 35, so that the positioning tooth plate 33 is interlocked with the first positioning tooth groove 32, thereby achieving the effect of positioning the rotary blade 2.

[0031] It is worth noting that a hydraulic cylinder 42 is fixedly installed on the upper end face of the operating table 1 and fixedly connected to the outer end of the movable seat 4. A symmetrically arranged limit frame 43 is fixedly installed on both sides of the inner end face of the movable seat 4. A matching movable connecting seat 44 is slidably installed on the upper and lower sides of the inner cavity of the limit frame 43. The limit roller 41 is rotatably installed between the left and right movable connecting seats 44. A positioning plate 45 is fixedly installed on the upper and lower ends of the outer side of the limit frame 43. A movable plate 46 matching the position of the positioning plate 45 is fixedly installed on the outer side of the upper and lower movable connecting seats 44. A limit rod 47 that is inserted into the two movable plates 46 is fixedly installed between the two positioning plates 45. A spring 48 sleeved on the periphery of the limit rod 47 is fixedly installed between the adjacent positioning plates 45 and the movable plate 46.

[0032] During the rotary cutting operation, the hydraulic cylinder 42 is activated, causing the output shaft to push the movable seat 4 to move inward at the upper end of the operating table 1. Through the insertion effect between the movable plate 46 and the limit rod 47, the movement direction of the movable connecting seat 44 can be restricted. In conjunction with the spring 48, the clamping effect of the two limit rollers 41 on the tree is ensured, so that the tree is always in close contact with the drive roller 12 and the two limit rollers 41, ensuring the rotary cutting effect of the rotary blade 2.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A uniform-thickness veneer peeling machine comprising an operating table (1) arranged in an L shape, characterized in that: The operation platform (1) upper end face both sides fixed and sliding installation has clearance fit's guide frame (11) and movable seat (4), movable seat (4) inside rotationally installed two mutually symmetrical limit roller (41) setting, guide frame (11) inside through the ear plate rotationally installed drive roller (12), guide frame (11) upper end face fixedly installed through transmission belt and drive roller (12) rotationally connected motor box (13), guide frame (11) inside fixedly installed guide slope (14), drive roller (12) below is equipped with rotary knife (2), rotary knife (2) and guide slope (14) between fixedly installed elastic guide sheet (15), guide frame (11) inside fixedly installed two symmetrical limit rotary seat (22) setting, rotary knife (2) both sides fixedly installed with two limit rotary seat (22) rotationally connected limit rotary lever (23), limit rotary seat (22) and limit rotary lever (23) facing end surface is equipped with mutually matched outer positioning tooth groove (25) and inner positioning tooth groove (24), outer positioning tooth groove (25) and inner positioning tooth groove (24) inside plug-in installation has positioning tooth block (26), outer positioning tooth groove (25) inside rotationally installed with positioning tooth block (26) threadedly cooperated threaded rod (29).

2. A uniform-thickness veneer peeling machine according to claim 1, characterized in that: Outer positioning tooth groove (25) and positioning tooth block (26) width mutually match, and both width is inner positioning tooth groove (24) width twice, and outer positioning tooth groove (25) periphery is equipped with with its intercommunication rotation hole (27), rotation hole (27) inside rotationally installed rotating plate (28), threaded rod (29) fixedly installed in rotating plate (28) inner end surface.

3. A uniform-thickness veneer peeling machine according to claim 1, characterized in that: Rotary knife (2) includes outside and its plug-in knife seat (21), knife seat (21) fixedly installed in limit rotary lever (23) inner end, knife seat (21) outside is equipped with knife groove (3), rotary knife (2) outside fixedly installed with the connecting plate (31) of knife groove (3) plug-in.

4. A uniform-thickness veneer peeling machine according to claim 3, characterized in that: Connecting plate (31) lower side is equipped with first positioning tooth groove (32), first positioning tooth groove (32) inner cavity side wall between slidingly installed with the positioning tooth plate (33) of its plug-in, knife groove (3) lower side starts from limit insertion hole (34), positioning tooth plate (33) lower end surface fixedly installed with the positioning screw rod (35) of limit insertion hole (34) plug-in, limit insertion hole (34) lower side periphery rotationally installed with the screw ring (36) of positioning screw rod (35) threadedly cooperated.

5. A uniform-thickness veneer peeling machine according to claim 1, characterized in that: Operation platform (1) upper end face fixedly installed with movable seat (4) outer end fixedly connected hydraulic cylinder (42), movable seat (4) inner end surface both sides fixedly installed mutually symmetrical limit frame (43) setting, limit frame (43) inner cavity upper and lower both sides slidingly installed mutually matched movable connecting seat (44), limit roller (41) rotationally installed between left and right two movable connecting seats (44).

6. A uniform-thickness veneer peeling machine according to claim 5, characterized in that: The outer side of the limiting frame (43) is fixedly provided with a positioning plate (45) at the upper and lower ends, and the outer side of the movable connecting seat (44) is fixedly provided with a movable plate (46) matched with the positioning plate (45) at the upper and lower sides. The two positioning plates (45) are fixedly provided with a limiting rod (47) inserted with the two movable plates (46), and the adjacent positioning plate (45) and movable plate (46) are fixedly provided with a spring (48) sleeved on the periphery of the limiting rod (47).

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