Solid wood gluing cold bending equipment

Abstract

The utility model relates to solid wood gluing cold bending equipment which comprises a machine table, a push bending device for pushing a plate to be bent gradually is arranged on the upper side of the machine table, a shaping device is arranged on the lower side of the machine table, a material pushing device is arranged above the push bending device, and the material pushing device is arranged over the shaping device. And the bent plate is pushed by the pushing device to enter the shaping device to be shaped under the action of the pushing and bending device. According to the cold bending equipment, heat treatment softening is not needed, cold bending machining is directly carried out on a plate, the bending quality is guaranteed, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of sheet processing, and particularly relates to a solid wood glued cold bending device. Background Technique

[0002] For sheet bending, after the wood is heat-treated and softened, it is bent into the required curve shape under the action of a bending moment and then dried and shaped. Wood has little plasticity under normal conditions. When directly bent, the convex surface is stretched and the concave surface is compressed. When the tensile strain reaches about 1%, the fibers on the tensile surface are broken and damaged, and wrinkles are generated on the compression surface. Therefore, it is difficult to obtain the required bending curvature radius. Therefore, before bending, the sheet needs to be heat-treated and softened, and then bent and deformed, which not only has requirements for processing conditions, but also has a long processing time and low processing efficiency. Content of the Utility Model

[0003] Aiming at the defects existing in the above-mentioned prior art, the technical problem to be solved by the utility model is how to provide a template cold bending device that does not require heat treatment and softening, and can directly bend and shape wood at room temperature, saving processing time and improving processing efficiency.

[0004] The technical solution of the utility model to solve the above technical problem is: a solid wood glued cold bending device, including a machine table, a bending device for gradually bending the sheet is arranged on the upper side of the machine table, a shaping device is arranged on the lower side of the machine table, a feeding device is arranged above the bending device, and the feeding device is directly above the shaping device; the sheet bent under the action of the bending device enters the shaping device for shaping under the push of the feeding device.

[0005] Further, the bending device includes a first positioning group and a plurality of bending structures symmetrically arranged on both sides of the first positioning group. The first positioning group is used to position and fix the center of the sheet, and the bending structure pushes the sheet to be gradually bent.

[0006] Further, the first positioning group includes a first cylinder arranged on the machine table. The output end of the first cylinder is provided with a first positioning push plate. The acting surface of the first positioning push plate is a concave arc surface. A positioning column is arranged on the extension line of the output end of the first cylinder. A cold bending plate that can be bent and deformed and move is arranged between the first positioning push plate and the positioning column.

[0007] Further, the positioning column is a cylinder. The central axis of the positioning column, the symmetry axis of the cold bending plate and the central axis of the first positioning push plate are on the same vertical line; a guide block is arranged at the rear end of the positioning column, and a guide groove is arranged on the corresponding frame. The guide block at the rear end of the positioning column is slidably connected with the guide groove.

[0008] Further, the cold-formed plate is made of steel plate. A plurality of limiting claws are uniformly arranged at the upper end of the cold-formed plate. The limiting claws are connected to the cold-formed plate at a 90° angle, and the cold-formed plate and the limiting claws are integrally formed.

[0009] Further, the bending structure includes a second cylinder arranged on the machine table. A bending plate is arranged at the output end of the second cylinder. The output surface of the bending plate is a concave arc surface. The axis of symmetry of the bending plate and the output surface of the second cylinder point to the positioning column.

[0010] Further, the shaping device is a box body with an open upper end. A positioning space is provided on the box body corresponding to the bent cold-formed plate, the plate and the positioning column. The positioning space is used to store the bent cold-formed plate, the bent plate and the positioning column pushed down from the upper end by the pushing device.

[0011] Further, an avoidance space is provided on the machine table corresponding to the shaping device. A movable plate is arranged in the avoidance space. The upper end surface of the movable plate is flush with the upper end surface of the machine table. A sliding table is provided corresponding to the movable plate. The movable plate moves in the sliding table, and the rear end of the movable plate is connected to the output end of the cylinder.

[0012] Further, the pushing device includes a semi-circular pushing plate arranged above the machine table. The upper part of the pushing plate is connected to the output end of the pushing cylinder.

[0013] Further, a discharging roller is arranged outside the shaping device.

[0014] The beneficial effects of the present utility model compared with the prior art: The solid wood glued cold bending equipment of the present utility model uses the first positioning group to position the plate to be processed. A plurality of bending devices push and bend the plate at different points in stages. At the same time, a cold-formed plate is arranged on the outermost side of the plate. The cooperation between the cold-formed plate and the bending device disperses the force during the bending process of the plate, making it not easy to break. The solid wood glued cold bending equipment of the present utility model does not require a heat treatment softening process, directly performs cold bending processing on the plate, ensures the bending quality, and improves the processing efficiency. Description of the Drawings

[0015] Figure 1 Schematic diagram of an embodiment of the present utility model Figure 1 ;

[0016] Figure 2 Schematic diagram of an embodiment of the present utility model Figure 2 ;

[0017] Figure 3 Schematic diagram of an embodiment of the present utility model Figure 3 ;

[0018] Figure 4 Working state of an embodiment of the present utility modelFigure 1 ;

[0019] Figure 5 The working state of the embodiment of the present utility model Figure 2 ;

[0020] Figure 6 The working state of the embodiment of the present utility model Figure 3 ;

[0021] Figure 7 The working state of the embodiment of the present utility model Figure 4 ;

[0022] Figure 8 Schematic diagram of the shaping device of the embodiment of the present utility model Figure 1 ;

[0023] Figure 9 Schematic diagram of the shaping device of the embodiment of the present utility model Figure 2 .

[0024] Reference numerals: 1. Machine table, 11. Avoidance space, 12. Movable plate, 13. Slide table, 14. Cylinder, 2. Bending device, 21. First positioning group, 211. First cylinder, 212. First positioning push plate, 213. Positioning column, 214. Cold bending plate, 215. Guide block, 216. Guide groove, 217. Limiting claw, 22. Bending structure, 221. Second cylinder, 222. Bending plate, 3. Shaping device, 31. Positioning space, 32. Unloading roller, 4. Pushing device, 41. Push plate, 42. Pushing cylinder. Specific embodiments

[0025] The following further describes in detail the embodiments of the present utility model with reference to the accompanying drawings, but the present embodiments do not limit the present utility model. Any similar structures and their similar changes using the present utility model shall fall within the protection scope of the present utility model.

[0026] Such as Figure 1As shown in the figure, a solid wood glued cold bending device includes a machine table 1. Above the machine table 1, there is a pushing and bending device 2 for gradually bending the board. Below the machine table 1, there is a shaping device 3. Above the pushing and bending device 2, there is a feeding device 4, and the feeding device 4 is directly above the shaping device 5. The board bent under the action of the pushing and bending device 2 is pushed into the shaping device 3 by the feeding device 4 for shaping. Place the board to be bent and processed into the pushing and bending device 2 in sequence. Use the pushing and bending device 2 to position the placed board and gradually bend it. The bent board is pushed into the shaping device 3 by the feeding device 4 for shaping. It should be noted that the board to be processed mentioned in the embodiment of the present invention actually refers to a triangular board formed by throwing wood into thin slices about 5 mm thick and then applying glue between the thin slices. The thin slice at the upper end is narrower, and the lengths of the thin slices at the lower end increase in sequence, forming a shape similar to an isosceles triangle. The solid wood glued cold bending device in the embodiment of the present invention cold-bends and shapes this glued board.

[0027] Specifically, as Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 shown, the pushing and bending device 2 includes a first positioning group 21. The first positioning group 21 is used to position and fix the center of the board. The first positioning group 21 includes a first cylinder 211 arranged on the machine table. The output end of the first cylinder 211 is provided with a first positioning push plate 212. The acting surface of the first positioning push plate 212 is a concave arc surface. A positioning column 213 is arranged on the extension line of the output end of the first cylinder 211. As Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, a cold bending plate 214 that can be bent and deformed and move is provided between the first positioning push plate 212 and the positioning column 213. The cold bending plate 214 is made of steel plate. A plurality of groups of limiting claws 217 are evenly arranged at the upper end of the cold bending plate 214. The limiting claws 217 are connected to the cold bending plate 214 at 90°. The cold bending plate 214 and the limiting claws 217 are integrally formed. The positioning column 213 is a cylinder. The central axis of the positioning column 213, the symmetry axis of the cold bending plate 214, and the central axis of the first positioning push plate 212 are on the same vertical line. A guiding block 215 is provided at the rear end of the positioning column 213, and a guiding groove 216 is provided on the corresponding frame. The guiding block 215 at the rear end of the positioning column 213 is slidably connected to the guiding groove 216. When bending the plate, according to the length of the plate, the length of the plate gradually increases from the direction of the positioning column 213 to the direction of the cold bending plate 214. And during the process of placing the plate, try to ensure that the plate is vertical and symmetrically placed with the positioning column 213 as the axis, and the outermost side of the plate is placed with the cold bending plate 214. After the plate and the cold bending plate are placed well, use the first cylinder 211 to drive the first positioning push plate 212 to make the axis of the plate to be processed, the axis of the cold bending plate 214, and the axis of the positioning column 213 on the same vertical line.

[0028] At this time, the cold bending plate 214 is still a straight plate. Under the action of a plurality of groups of bending and pushing structures 22 symmetrically arranged on both sides of the first positioning group 21, the cold bending plate is pushed to drive the plate to be gradually bent. A plurality of groups of the bending and pushing structures 22 can be symmetrically arranged, such as Figure 4 and Figure 6As shown in the figure, a first bending and pushing structure 22-1 and a second bending and pushing structure 22-2 are symmetrically arranged respectively. During the process of bending the sheet material, the first bending and pushing structure 22-1 is first used to apply force to the cold bending plate and the sheet material. When the cold bending plate and the sheet material are bent to a certain angle, the second cold bending structure 22-2 is then activated to apply bending and pushing force to the cold bending plate and the sheet material. In this embodiment, multi-point bending and separate force application are adopted, which can slow down the situation that the sheet material is easily broken due to multiple parts being stressed simultaneously during bending. Of course, more groups of bending and pushing structures 22 can be symmetrically arranged, specifically determined according to the size of the sheet material to be processed. For the specific structure of the bending and pushing structure 22, the bending and pushing structure 22 includes a second cylinder 221 arranged on the machine table 1. The output end of the second cylinder 221 is provided with a bending and pushing plate 222. The output surface of the bending and pushing plate 222 is a concave arc surface. The axis of symmetry of the bending and pushing plate 222 and the output surface of the second cylinder 221 point to the positioning column 213. The heights of the bending and pushing plate 221, the cold bending plate 214 and the first positioning and pushing plate mentioned here are equal to or higher than the height of the sheet material to be processed, and the length of the cold bending plate 214 should be equal to or longer than the length of the sheet material to be processed. The length mentioned in this embodiment is the length in the horizontal direction, and the height is the height in the vertical direction. For the outermost bending and pushing structure, such as the second bending and pushing structure 22-2 in this embodiment, a limit guide block can be arranged at its outer end to enable the outermost bending and pushing structure to overcome the outward tension during the sheet material process. A guide block can be arranged at the output end of the second cylinder as shown in the figure, or a guide groove can be arranged at the lower end of the bending and pushing plate, so that the second cylinder can stably push the bending and pushing plate towards the positioning column.

[0029] As Figure 8 and Figure 9 As shown in the figure, a shaping device 3 is arranged on the lower side of the machine table 1. The shaping device 3 is a box body with an open upper end. A positioning space 31 corresponding to the bent cold bending plate 214, the sheet material and the positioning column 213 is provided on the box body. In order to facilitate the unloading of the shaped sheet material, the positioning space 31 penetrates the box body. In this way, when unloading, the sheet material, the cold bending plate and the positioning column can be directly pushed out of the box body by a cylinder. The positioning space 31 is used to store the bent cold bending plate 214, the bent sheet material and the positioning column 213 pushed down from the upper end by the pushing device. A relief space 11 is provided on the machine table 1 corresponding to the shaping device 3. A movable plate 12 is arranged in the relief space 11. The upper end surface of the movable plate 11 is flush with the upper end surface of the machine table 1. A sliding table 13 is provided corresponding to the movable plate 12. The movable plate 12 moves in the sliding table 13. The rear end of the movable plate 12 is connected to the output end of a cylinder 14. A discharging roller 32 is arranged outside the shaping device 3. A positioning block can be arranged on the side of the discharging roller 32 to prevent the shaping device from falling; at the same time, a limit strip 33 is arranged on the rack for placing the shaping device to realize the positioning of the shaping device.

[0030] In order to enable the bent sheet to enter the shaping device 3 for shaping, a feeding device 4 is provided above the bending device 2, and the feeding device 4 is directly above the shaping device 3; under the action of the bending device 2, the bent sheet enters the shaping device 3 for shaping under the push of the feeding device 4. The feeding device 4 includes a semi-circular push plate 41 arranged above the machine table 1, and the upper part of the push plate 41 is connected to the output end of the feeding cylinder 42. During operation, the push plate 41 simultaneously pushes the bent cold-formed sheet, the sheet and the positioning column into the positioning space 31 of the shaping device for shaping. After removing the loaded shaping device and placing it for shaping, until the sheet is shaped, then the sheet and the like inside are pushed out. For the pushing device after shaping, it is also completed by using a structure similar to that of the feeding device 4. Since there is not much difference in their structures, it is not elaborated in the embodiments of the specification.

[0031] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any change or replacement that can be thought of without creative work should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A solid wood glued cold bending device, comprising a machine table (1), characterized in that: On the upper side of the machine table (1), there is a bending device (2) for gradually bending the plate. On the lower side of the machine table (1), there is a shaping device (3). Above the bending device (2), there is a feeding device (4), and the feeding device (4) is directly above the shaping device (3). The plate bent under the action of the bending device (2) enters the shaping device (3) for shaping under the push of the feeding device (4).

2. The solid wood glued cold bending equipment according to claim 1, characterized in that: The bending device (2) includes a first positioning group (21) and multiple groups of bending structures (22) symmetrically arranged on both sides of the first positioning group (21). The first positioning group (21) is used to position and fix the center of the plate, and the bending structure (22) pushes the plate to gradually bend.

3. A solid wood glued cold bending device according to claim 2, characterized in that: The first positioning group (21) includes a first cylinder (211) arranged on the machine table. The output end of the first cylinder (211) is provided with a first positioning push plate (212). The acting surface of the first positioning push plate (212) is a concave arc surface. On the extension line of the output end of the first cylinder (211), there is a positioning column (213). Between the first positioning push plate (212) and the positioning column (213), there is a cold bending plate (214) that can be bent and deformed and move.

4. The solid wood glued cold bending equipment according to claim 3, characterized in that: The positioning column (213) is a cylinder. The central axis of the positioning column (213), the symmetry axis of the cold bending plate (214), and the central axis of the first positioning push plate (212) are on the same vertical line. At the rear end of the positioning column (213), there is a guiding block (215). On the corresponding machine frame, there is a guiding groove (216). The guiding block (215) at the rear end of the positioning column (213) is slidably connected to the guiding groove (216).

5. The solid wood glued cold bending equipment according to claim 4, characterized in that: The cold bending plate (214) is made of steel plate. At the upper end of the cold bending plate (214), multiple groups of limiting claws (217) are evenly arranged. The limiting claws (217) are connected to the cold bending plate (214) at a 90° angle, and the cold bending plate (214) and the limiting claws (217) are integrally formed.

6. The solid wood glued cold bending equipment according to claim 2, characterized in that: The bending structure (22) includes a second cylinder (221) arranged on the machine table (1). The output end of the second cylinder (221) is provided with a bending plate (222). The output surface of the bending plate (222) is a concave arc surface. The symmetry axis of the bending plate (222) and the output surface of the second cylinder (221) point to the positioning column (213).

7. A solid wood glued cold bending device according to claim 3, characterized in that: The shaping device (3) is a box body with an open upper end. On the box body, there is a positioning space (31) corresponding to the bent cold bending plate (214), the plate, and the positioning column (213). The positioning space (31) is used to store the bent cold bending plate (214), the bent plate, and the positioning column (213) pushed down from the upper end by the feeding device.

8. A solid wood glued cold bending device according to claim 1, characterized in that: On the machine table (1) corresponding to the shaping device (3), there is an avoidance space (11). Inside the avoidance space (11), there is a movable plate (12). The upper end surface of the movable plate (12) is flush with the upper end surface of the machine table (1). Corresponding to the movable plate (12), there is a sliding table (13). The movable plate (12) moves inside the sliding table (13), and the rear end of the movable plate (12) is connected to the output end of a cylinder (14).

9. A solid wood glued cold bending device according to claim 1, characterized in that: The pushing device (4) includes a semi-circular pushing plate (41) arranged above the machine table (1), and the upper part of the pushing plate (41) is connected to the output end of the pushing cylinder (42).

10. A solid wood glued cold bending device according to claim 1, characterized in that: A discharging roller (32) is arranged outside the shaping device (3).

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