Positioning and clamping device for bending processing of bamboo chips

Abstract

The utility model relates to bamboo processing technical field discloses a positioning and clamping equipment for bamboo piece bending processing, including base, the top fixed mounting of base is equipped with two symmetrical slide rails, the inside slide of slide rail is installed with the sliding block, the top fixed mounting of sliding block is equipped with the connecting plate, the top fixed mounting of connecting plate is equipped with two symmetrical vertical boards, and the vertical board is equipped with strip slide hole, the top rotation of two vertical board insides is installed with the positioning roller axle, the inside slide of strip slide hole is installed with the support. When the interval of the positioning roller axle and the extrusion roller axle on both sides becomes small, the bending arc of the long bamboo piece body is big after the lower pressing block moves down and locks the position, when the interval of the positioning roller axle and the extrusion roller axle on both sides becomes big, the bending arc of the long bamboo piece body is small after the lower pressing block moves down and locks the position, the bending arc of the long bamboo piece body is adjusted in the above process, and the length of the long bamboo piece body is applicable.

Description

Technical Field

[0001] This utility model relates to the field of bamboo processing technology, specifically to a positioning and clamping device for bending bamboo strips. Background Technology

[0002] Bamboo's fiber structure is longitudinally arranged, giving it natural flexibility. By disrupting some of the connections between fibers through physical or chemical methods while maintaining the integrity of the overall structure, bamboo strips can be bent into desired shapes when heated or moistened, and then set after cooling or drying.

[0003] The most common bending method is steam bending. First, soak the bamboo strips in water or a chemical softener for 24-48 hours to increase their moisture content. Then, place the bamboo strips in a steam chamber (temperature approximately 100-120℃) and maintain the temperature for 15-30 minutes until completely softened. Finally, bend the bamboo strips using a mold or by hand, and secure them with clamps. Remove the bamboo strips after cooling. For localized bending of the bamboo strips, a rounded head and clamps are required. The clamps consist of a U-shaped frame, a screw, and a pressure plate. When using them, first mount the U-shaped frame on the mold, drive the screw to rotate, and press the pressure plate onto the bamboo strip. This simple clamp cannot adjust the length of the bamboo strip according to the situation, nor can it control the curvature of the bamboo strip. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a positioning and clamping device for bamboo strip bending processing, which has the advantages of being suitable for bamboo strip length and adjusting the bending curvature, thus solving the aforementioned problems.

[0005] To achieve the aforementioned purpose of adapting to the length of bamboo strips and adjusting the bending curvature, this utility model provides the following technical solution: a positioning and clamping device for bamboo strip bending processing, comprising a base, two symmetrically arranged slide rails fixedly installed on the top of the base, a slider slidably installed inside the slide rails, a connecting plate fixedly installed on the top of the slider, two symmetrically arranged vertical plates fixedly installed above the connecting plate, the vertical plates having strip-shaped sliding holes, positioning roller shafts rotatably installed on the upper inner sides of the two vertical plates, a bracket slidably installed inside the strip-shaped sliding holes, a pressing roller shaft rotatably installed inside the bracket, a pneumatic rod fixedly installed between the bracket and the connecting plate, a long bamboo strip body interlaced between the left and right positioning roller shafts and the pressing roller shaft, a pressing block provided on the surface of the long bamboo strip body, and clamping plates provided on both the front and rear sides of the pressing block.

[0006] Preferably, a shaft is rotatably mounted inside the lower pressure block, a torsion cap is fixedly mounted on the top of the shaft, a gear is fixedly mounted on the outside of the shaft, and toothed rods mesh on both sides of the gear. One end of the toothed rod is fixedly mounted to the side of a clamping plate, and the other end is slidably connected to the surface of another clamping plate through a through hole.

[0007] Preferably, a fixing plate is fixedly installed inside the lower pressure block, the shaft is rotatably installed at the center of the fixing plate, a spring is provided in the mounting groove inside the fixing plate, a clamp is fixedly installed at the other end of the spring, and a corresponding clamping groove is opened on the surface of the shaft.

[0008] Preferably, fixing posts are fixedly installed on both sides of the outer surface of the pressing block, mounting base is fixedly installed on the surface of the base, elastic plate is fixedly installed on the top of the mounting base, U-shaped frame is fixedly installed on the top of the elastic plate, and fixing rings corresponding to the fixing posts are fixedly installed at both ends of the top of the U-shaped frame.

[0009] Preferably, a protruding block is fixedly installed at the bottom of the connecting plate, a threaded sleeve is embedded inside the protruding block, a screw is threadedly connected inside the threaded sleeve, the screw is rotatably connected to the side seat, the side seat is fixedly connected to the base, and the outer side of the screw is provided with a threaded portion with opposite threads at both ends.

[0010] Compared with the prior art, this utility model provides a positioning and clamping device for bamboo strip bending processing, which has the following beneficial effects: This positioning and clamping device for bamboo strip bending processes uses a drive screw to rotate, which in turn drives two screw sleeves to move closer together or apart. This allows for adjustment of the distance between the positioning rollers and the extrusion rollers on both sides, thus adapting to the length of long bamboo strips. A pneumatic rod continuously pushes the extrusion rollers upwards to clamp the long bamboo strips, accommodating both the thickness of the bamboo strips and preventing slippage during bending. External force (manual, hydraulic, or pneumatic cylinder output) pushes the lower pressure block downwards to press the long bamboo strips. The bamboo strip is bent under pressure. After the pressing block moves down to a certain position, the fixing ring is fitted onto the fixing post to lock the position of the pressing block, keeping the bamboo strip in a bent state at all times, waiting for it to be bent and shaped. When the distance between the positioning rollers and the pressing rollers on both sides decreases, the bending arc of the bamboo strip is large after the pressing block moves down and locks its position. When the distance between the positioning rollers and the pressing rollers on both sides increases, the bending arc of the bamboo strip is small after the pressing block moves down and locks its position. The above process allows for the application of the length of the bamboo strip and the adjustment of the bending arc of the bamboo strip. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a bottom view of the structure of this utility model after the base has been removed; Figure 3 This is a partial structural diagram of the present invention; Figure 4This is an exploded structural diagram of the pressure block and clamping plate of this utility model; Figure 5 This is a cross-sectional structural diagram of the lower pressure block and clamping plate of this utility model; Figure 6 This is a cross-sectional exploded view of the shaft, fixing plate, and clamp of this utility model.

[0012] In the diagram: 1. Base; 2. Slide rail; 3. Slider; 4. Connecting plate; 5. Vertical plate; 6. Strip-shaped sliding hole; 7. Positioning roller shaft; 8. Bracket; 9. Extrusion roller shaft; 10. Pneumatic rod; 11. Long bamboo strip body; 12. Lower pressure block; 13. Clamping plate; 14. Shaft; 15. Torsion cap; 16. Gear; 17. Toothed rod; 18. Fixing plate; 19. Spring; 20. Clamping head; 21. Clamping groove; 22. Fixing column; 23. Mounting seat; 24. Elastic plate; 25. U-shaped frame; 26. Fixing ring; 27. Protrusion block; 28. Screw sleeve; 29. ​​Screw; 30. Side seat. Detailed Implementation

[0013] 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.

[0014] Please see Figure 1-3 A positioning and clamping device for bending bamboo strips includes a base 1. Two symmetrically arranged slide rails 2 are fixedly installed on the top of the base 1. A slider 3 is slidably installed inside the slide rails 2. A connecting plate 4 is fixedly installed on the top of the slider 3. Two symmetrically arranged vertical plates 5 are fixedly installed above the connecting plate 4. The vertical plates 5 have strip-shaped sliding holes 6.

[0015] Please see Figure 1-3 Positioning rollers 7 are rotatably installed on the upper inner side of the two vertical plates 5. A bracket 8 is slidably installed inside the strip-shaped sliding hole 6. The bracket 8 is U-shaped, and the two side walls of the bracket 8 slide in the strip-shaped sliding hole 6. An extrusion roller 9 is rotatably installed inside the bracket 8. A pneumatic rod 10 is fixedly installed between the bracket 8 and the connecting plate 4. The pneumatic rod 10 keeps the extrusion roller 9 in an upward pushing position at all times, which can both clamp the bamboo strip and adapt to the thickness of the bamboo strip. Even if the bamboo strip is bent, the extrusion roller 9 will move down to adapt to the change in the position of the bamboo strip.

[0016] Please see Figure 1-3A long bamboo strip 11 is inserted between the two positioning rollers 7 on the left and right sides and the extrusion roller 9. The long bamboo strip 11 can also be placed directly on the surface of the positioning roller 7. In this case, clamping plates 13 are needed to clamp and fix the bamboo strip. A pressing block 12 is provided on the surface of the long bamboo strip 11. The force that drives the pressing block 12 to move downward can be a manual, hydraulic telescopic cylinder or pneumatic cylinder. Clamping plates 13 are provided on both the front and rear sides of the pressing block 12. The unfolding of the clamping plates 13 can accommodate the width of the bamboo strip and can also clamp the bamboo strip to prevent the bamboo strip from shifting position.

[0017] Please see Figure 4-6 A shaft 14 is rotatably mounted inside the lower pressure block 12. A torsion cap 15 is fixedly mounted on the top of the shaft 14. A gear 16 is fixedly mounted on the outside of the shaft 14. Both sides of the gear 16 are meshed with racks 17. One end of the rack 17 is fixedly mounted to the side of a clamping plate 13, and the other end is slidably connected to a through hole on the surface of another clamping plate 13. After the clamping plate 13 is installed on both sides of the lower pressure block 12, the tail end of its rack 17 will be inserted into the through hole on the opposite side of the clamping plate 13 to ensure the stability of the clamping plate 13 when it is expanded or contracted. The torsion cap 15 is driven to rotate by an external tool. The torsion cap 15 can then drive the shaft 14 and the gear 16 to rotate. The gear 16 can then synchronously drive the racks 17 on both sides to expand or contract, thereby realizing the expansion and contraction of the clamping plate 13.

[0018] Please see Figure 4-6 A fixing plate 18 is fixedly installed inside the lower pressure block 12. The shaft 14 is rotatably installed at the center of the fixing plate 18. A spring 19 is provided in the mounting groove inside the fixing plate 18. A clamp 20 is fixedly installed at the other end of the spring 19. A corresponding groove 21 is opened on the surface of the shaft 14. The spring 19 pushes the clamp 20 into the corresponding groove 21 to lock the position of the rotated shaft 14, ensuring that the clamps 13 on both sides will not loosen.

[0019] Please see Figure 1-3 The lower pressure block 12 has fixed posts 22 on both sides of its outer surface, and a mounting base 23 is fixedly installed on the surface of the base 1. An elastic plate 24 is fixedly installed on the top of the mounting base 23, and a U-shaped frame 25 is fixedly installed on the top of the elastic plate 24. Fixed rings 26 corresponding to the fixed posts 22 are fixedly installed at both ends of the top of the U-shaped frame 25. After the lower pressure block 12 is driven to move downward, the force applied to the elastic plate 24 is released, and the fixed rings 26 will fit onto the fixed posts 22, thereby locking the position of the lower pressure block 12 and preventing the bamboo strip from springing back upward, thus strengthening the bending and clamping fixation of the bamboo strip.

[0020] Please see Figure 1-3A protruding block 27 is fixedly installed at the bottom of the connecting plate 4. A screw sleeve 28 is embedded inside the protruding block 27. A screw rod 29 is threaded inside the screw sleeve 28. The screw rod 29 is rotatably connected to the side seat 30. The side seat 30 is fixedly connected to the base 1. The outer side of the screw rod 29 is provided with a threaded part with opposite threads at both ends. The screw rod 29 is rotated by driving the screw rod 29. The two opposite threaded parts of the screw rod 29 will drive the two screw sleeves 28 to move closer or separate synchronously.

[0021] Working principle: When in use, by driving the screw 29 to rotate, the screw 29 can drive the two screw sleeves 28 to come together or separate, thereby adjusting the distance between the positioning roller shafts 7 and the extrusion roller shafts 9 on both sides, so as to achieve the appropriate length of the long bamboo strip body 11. When the distance between the positioning rollers 7 and the pressing rollers 9 on both sides decreases, the lower pressing block 12 moves down and locks its position, resulting in a large curvature of the long bamboo strip 11. When the distance between the positioning rollers 7 and the pressing rollers 9 on both sides increases, the lower pressing block 12 moves down and locks its position, resulting in a small curvature of the long bamboo strip 11. In the above process, the length of the long bamboo strip 11 is suitable and the curvature of the long bamboo strip 11 can be adjusted.

[0022] The pneumatic rod 10 pushes the extrusion roller 9 upward and clamps the long bamboo strip 11, which can accommodate the thickness of the long bamboo strip 11 and ensure that the long bamboo strip 11 will not slip when it is bent. By using external force (human force, hydraulic telescopic cylinder or air cylinder output force, etc.) to push the lowering block 12 downward, the long bamboo strip 11 can be pressed down and bent. After the lowering block 12 moves down to a certain position, the fixing ring 26 is fitted onto the fixing post 22 to lock the position of the lowering block 12, keeping the long bamboo strip 11 in a bent state at all times, waiting for it to be bent and shaped. The shaft 14 and gear 16 can be driven to rotate by the twist cap 15. The gear 16 can control the toothed rods 17 on both sides to expand or contract, and then control the clamping plate 13 to expand or contract, so as to clamp and fix the bamboo strips and can also be used for bamboo strips of different thicknesses. By pushing the clamp 20 into the slot 21 on the outside of the shaft 14 with the spring 19, the position of the shaft 14 can be locked, ensuring that the position of the clamp 13 will not loosen when the clamp 13 expands or contracts without external pressure.

[0023] 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 positioning and clamping device for bending bamboo strips, comprising a base (1), wherein two symmetrically arranged slide rails (2) are fixedly installed on the top of the base (1), and a slider (3) is slidably installed inside the slide rails (2), characterized in that: A connecting plate (4) is fixedly installed on the top of the slider (3). Two symmetrically arranged vertical plates (5) are fixedly installed above the connecting plate (4). The vertical plates (5) have strip-shaped sliding holes (6). Positioning roller shafts (7) are rotatably installed on the upper inner side of the two vertical plates (5). A bracket (8) is slidably installed inside the strip-shaped sliding hole (6). A pressing roller shaft (9) is rotatably installed inside the bracket (8). A pneumatic rod (10) is fixedly installed between the bracket (8) and the connecting plate (4). The same long bamboo strip (11) is inserted between the left and right positioning roller shafts (7) and the pressing roller shaft (9). A pressing block (12) is provided on the surface of the long bamboo strip (11). Clamping plates (13) are provided on both the front and rear sides of the pressing block (12).

2. The positioning and clamping device for bamboo strip bending processing according to claim 1, characterized in that: The lower pressure block (12) has a shaft (14) rotatably mounted inside. A torsion cap (15) is fixedly mounted on the top of the shaft (14). A gear (16) is fixedly mounted on the outside of the shaft (14). A toothed rod (17) meshes with both sides of the gear (16). One end of the toothed rod (17) is fixedly mounted to the side of a clamping plate (13), and the other end is slidably connected to a through hole opened on the surface of another clamping plate (13).

3. The positioning and clamping device for bamboo strip bending processing according to claim 2, characterized in that: The lower pressure block (12) is fixedly installed with a fixing plate (18), the shaft (14) is rotatably installed at the center of the fixing plate (18), a spring (19) is provided in the mounting groove inside the fixing plate (18), a clip (20) is fixedly installed at the other end of the spring (19), and a clip (21) corresponding to the clip (20) is opened on the surface of the shaft (14).

4. The positioning and clamping device for bamboo strip bending processing according to claim 1, characterized in that: Fixed posts (22) are fixedly installed on both sides of the outer surface of the lower pressure block (12). Mounting seat (23) is fixedly installed on the surface of the base (1). An elastic plate (24) is fixedly installed on the top of the mounting seat (23). A U-shaped frame (25) is fixedly installed on the top of the elastic plate (24). Fixing rings (26) corresponding to the fixed posts (22) are fixedly installed at both ends of the top of the U-shaped frame (25).

5. The positioning and clamping device for bamboo strip bending processing according to claim 1, characterized in that: The bottom of the connecting plate (4) is fixedly installed with a protrusion (27), and a screw sleeve (28) is embedded inside the protrusion (27). The screw sleeve (28) is threadedly connected to a screw rod (29). The screw rod (29) is rotatably connected to the side seat (30). The side seat (30) is fixedly connected to the base (1). The outer side of the screw rod (29) is provided with a threaded part with opposite threads at both ends.

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