Floor bending apparatus

Abstract

The application discloses a floor bending and shaping device, which comprises a roller straightener and a feeding device connected with the roller straightener, wherein the feeding device comprises a lower pressing plate, an upper pressing plate and an elastic connecting assembly; the lower pressing plate and the upper pressing plate are connected through the elastic connecting assembly, and at least the upper pressing plate and the elastic connecting assembly are detachably connected; and the distance between the upper pressing plate and the lower pressing plate is adjustable between 10 mm and 20 mm after assembly.

Description

Technical Field

[0001] This application relates to the technical field of wood processing equipment, specifically to a floor bending and shaping device. Background Technology

[0002] Solid wood flooring is known to be made from solid wood planks through processes such as tongue and groove processing and painting. Solid wood planks are obtained by sawing logs, sanding, and setting their thickness. As a natural material, wood contains some defects resulting from the tree's growth process. Some of these defects can cause the boards to warp and deform after thickness setting, such as growth stress. Some growth stress can be eliminated through scientific drying processes, preventing it from manifesting as warping and deformation during subsequent production and use. However, some cannot be eliminated.

[0003] For boards that still bend and deform after drying, existing technology often uses a roller three-point straightener for straightening and shaping. This type of equipment is simple and compact in structure; however, boards straightened by this equipment often have defects such as surface cracks and internal cracks. Surface cracks affect the paint coating effect of the board, while internal cracks affect the strength and dimensional stability of the board. Utility Model Content

[0004] The inventors discovered that existing roller-type three-point straighteners introduce surface and internal cracks after correcting the bending deformation of sheet materials. This is mainly because the three-point straightener requires considerable roller pressure to complete the bending deformation shaping process, and this pressure is concentrated in the area of ​​contact with the upper straightening roller. This causes surface and internal cracks to occur on the sheet material as the upper straightening roller rolls over it.

[0005] This application aims to provide a floor bending and shaping device. The application of this device can overcome the problems existing in the prior art, resulting in straight floorboards free from surface cracks and internal cracks. Specifically, this application adopts the following technical solution:

[0006] A floor bending and straightening device includes a roller straightener and a feeding device connected to the roller straightener. The feeding device includes a lower pressure plate, an upper pressure plate, and an elastic connecting assembly. The lower pressure plate and the upper pressure plate are assembled and connected through the elastic connecting assembly, and at least the upper pressure plate and the elastic connecting assembly are detachably connected. After assembly, the distance between the upper pressure plate and the lower pressure plate is adjustable between 10mm and 20mm.

[0007] Preferably, the upper pressure plate and the elastic connection assembly are detachably connected by magnetic attraction.

[0008] Preferably, the elastic connection assembly includes an elastic element, one end of which is fixedly connected to the lower pressure plate, and the free end of the elastic element has a first magnetic adsorption element, and the bottom surface of the upper pressure plate is provided with a second magnetic adsorption element that cooperates with the first magnetic adsorption element.

[0009] Preferably, the elastic connection assembly includes an elastic element, the minimum compressible length of which is 10-12 mm and the maximum tensile length of which is 19-20 mm.

[0010] Preferably, the elastic element is sleeved on the guide post, and the guide post is fixedly disposed on the surface of the lower pressure plate.

[0011] Preferably, the length of the guide post is 10~14mm.

[0012] Preferably, the elastic element is a spring.

[0013] Preferably, an axial limiting block is fixedly provided at least at the end of the lower pressure plate in the length direction.

[0014] Preferably, a set of guide rollers is installed at the front end of the upper pressure plate.

[0015] Preferably, the guide roller assembly includes a plurality of guide rollers spaced laterally, the top of the guide rollers being flush with the surface of the upper pressure plate, and the top of the guide rollers having a gap of 0.5 to 1 mm with the front end face of the upper pressure plate.

[0016] The floor bending and shaping equipment provided in this application can overcome the problems existing in the prior art and obtain flat boards without surface cracks or internal cracks.

[0017] In addition, compared with the existing technology of directly feeding the board into the roller straightener, the floor bending and shaping equipment provided in this application can also ensure the safety of operators to a certain extent. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide further explanation of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0019] Figure 1 This is a schematic diagram of a conventional roller straightening machine.

[0020] Figure 2 This is a schematic diagram of a floor bending and shaping device provided in an embodiment of this application.

[0021] Figure 3This is a schematic diagram of a pressure plate provided in an embodiment of this application.

[0022] Figure 4 This is a schematic diagram of the structure of the upper pressure plate provided in an embodiment of this application.

[0023] In the above attached figures: 10, roller straightener; 110, frame; 120, lower straightening roller; 130, upper straightening roller; 20, feeding device; 210, lower pressure plate; 220, upper pressure plate; 230, elastic link assembly; 231, elastic element; 232, first magnetic adsorption element; 234, second magnetic adsorption element; 235, guide column; 240, axial limiting block; 250, guide roller assembly; 260, lateral limiting block. Detailed Implementation

[0024] The technical solutions in this application are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Example

[0025] Reference Figure 1 As shown, existing technology uses a roller straightener 10 to straighten and shape bent and deformed sheet metal. This type of equipment has a simple and compact structure. The roller straightener 10 includes a frame 110, a pair of lower straightening rollers 120 and an upper straightening roller 130 mounted on the frame 110, and the pair of lower straightening rollers 120 and the upper straightening roller 130 are arranged in a triangular layout. The two ends of the upper straightening roller 130 can be adjusted in height via a screw bolt structure to accommodate the straightening of sheet metal of different thicknesses. One of the lower straightening rollers 120 is a powered roller that can rotate actively to promote the feeding of the sheet metal during the straightening process. Its power source is generally a chain or motor system, which is not shown in the attached figure.

[0026] The sheet material is fed between a pair of lower straightening rollers 120 and an upper straightening roller 130, and the bending and shaping of the material is achieved by the pressure between the pair of lower straightening rollers 120 and the upper straightening roller 130.

[0027] After the roller straightener 10 corrects the bending deformation of the sheet material, it introduces surface cracks and internal cracks. This is mainly because the triangular layout of the roller straightener 10 requires considerable roller pressure to complete the bending deformation shaping process, and the pressure is concentrated in the contact area of ​​the upper straightening roller 130. This causes surface cracks and internal cracks to occur in the sheet material as the upper straightening roller 130 rolls over the surface.

[0028] Therefore, referring to Figure 2 As shown, this embodiment proposes a floor bending and shaping device, including a roller straightener 10 and a feeding device 20 that cooperates with the roller straightener 10. The feeding device 20 includes a lower pressure plate 210, an upper pressure plate 220, and an elastic connecting assembly 230.

[0029] refer to Figure 3 and Figure 4 The lower pressure plate 210 and the upper pressure plate 220 are a pair of steel plates with the same width, both being 90-150mm wide and 800-1000mm long. In this embodiment, the lower pressure plate 210 and the upper pressure plate 220 are 95mm wide, 920mm long, and 2mm thick.

[0030] An elastic connecting assembly 230 is fixedly welded onto the lower pressure plate 210. The elastic connecting assembly 230 includes an elastic element 231 fixedly connected to the lower pressure plate 210 at one end, a first magnetic adsorption element 232 welded to the free end of the elastic element 231, and a second magnetic adsorption element 234 welded to the corresponding position on the back of the upper pressure plate 220. The elastic element 231 is a spring, and the first magnetic adsorption element 232 is a disc with a magnetic disc. For example, the first magnetic adsorption element 232 includes an upper layer and a lower layer screwed together, with the magnetic disc embedded between them. The first magnetic adsorption element 232 is a circular patch. Specifically, the top surface of the first magnetic adsorption element 232 has a circular blind hole; after magnetic adsorption, the first magnetic adsorption element 232 is inserted into the circular blind hole on its top surface. The elastic element 231 is a spring. Thus, the lower pressure plate 210 and the upper pressure plate 220 are assembled and connected by the elastic connecting assembly 230, and the upper pressure plate 220 and the elastic connecting assembly 230 are detachably connected to facilitate the placement of the sheet material.

[0031] Furthermore, after assembly, the distance between the upper pressure plate 220 and the lower pressure plate 210 is adjustable between 10mm and 20mm. Therefore, due to the flexible connection, the feeding device 20 can adapt to various thicknesses of sheet metal, as well as thickness deviations caused by sheet metal bending.

[0032] Preferably, the minimum compression length of the elastic element 231 is 10~12mm, and the maximum extension length of the elastic element 231 is 19~20mm.

[0033] Alternatively, a guide post 235 is preferably welded onto the surface of the lower pressure plate 210, and an elastic element 231 is fitted onto the guide post 235 to serve as an elastic guide for the elastic element 231. To avoid the guide post 235 affecting the effective distance between the lower pressure plate 210 and the upper pressure plate 220, the length of the guide post 235 should be between 10 and 14 mm.

[0034] In this embodiment, four sets of elastic connection components 230 are provided, located at the four corners of the lower pressure plate 210 respectively.

[0035] Additionally, an axial limiting block 240 is welded to the end of the lower pressure plate 210 along its length, and a transverse limiting block 260 is welded to one side of the lower pressure plate 210 along its width. However, in practice, the absence of limiting blocks would not cause significant inconvenience to operation.

[0036] Additionally, refer to Figure 4 As shown, a guide roller assembly 250 is mounted on the front end of the upper pressure plate 220. The guide roller assembly 250 includes multiple guide rollers spaced laterally. The roller shafts of the guide rollers are arranged laterally, the tops of the guide rollers are flush with the surface of the upper pressure plate 220, and there is a gap of 0.5~1mm between the tops of the guide rollers and the front end face of the upper pressure plate 220. By setting up the guide roller assembly 250, the feeding device 20 can be facilitated to enter the roller straightener, thereby ensuring the safety of the operator to a certain extent.

[0037] The working method of a floor bending and shaping device according to an embodiment of this application is as follows:

[0038] First, place an 18mm thick sheet material at a suitable position on the lower pressure plate 210, cover it with the upper pressure plate 220, and make the first magnetic adsorption component 232 and the second magnetic adsorption component 234 attract each other to fix the lower pressure plate 210 and the upper pressure plate 220. Then, the feeding device 2 carries the sheet material into the roller straightener 10 for straightening.

[0039] Since the distance between the three straightening rollers is equal, but the pressure is distributed by the upper pressure plate 220, the straightening effect can be achieved while avoiding surface cracks and internal cracks to a certain extent.

[0040] Comparative experiments showed that in boards straightened using only the roller straightener 10, surface cracks accounted for 12% and internal cracks accounted for 16%. However, in boards straightened using the floor bending and shaping equipment of this application embodiment, i.e., in conjunction with the feeding device 20, surface cracks accounted for 4% and internal cracks accounted for 5%.

[0041] 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 floor bending and straightening device, comprising a roller straightener (10), characterized in that, It also includes a feeding device (20) for the roller straightener (10), the feeding device (20) including a lower pressure plate (210), an upper pressure plate (220) and an elastic connecting assembly (230), the lower pressure plate (210) and the upper pressure plate (220) are assembled and connected by the elastic connecting assembly (230), and at least the upper pressure plate (220) and the elastic connecting assembly (230) are detachably connected; after assembly and connection, the distance between the upper pressure plate (220) and the lower pressure plate (210) is adjustable between 10mm and 20mm.

2. The floor bending and shaping equipment according to claim 1, characterized in that, The upper pressure plate (220) and the elastic connection assembly (230) are connected in a detachable manner by magnetic attraction.

3. The floor bending and shaping equipment according to claim 2, characterized in that, The elastic connection assembly (230) includes an elastic element (231), one end of which is fixedly connected to the lower pressure plate (210). The free end of the elastic element (231) has a first magnetic adsorption element (232), and the bottom surface of the upper pressure plate (220) is provided with a second magnetic adsorption element (234) that cooperates with the first magnetic adsorption element (232).

4. The floor bending and shaping equipment according to claim 1, characterized in that, The elastic connection assembly (230) includes an elastic element (231), the minimum compressible length of the elastic element (231) is 10~12mm, and the maximum tensile length of the elastic element (231) is 19~20mm.

5. The floor bending and shaping equipment according to claim 3 or 4, characterized in that, The elastic element (231) is sleeved on the guide post (235), and the guide post (235) is fixedly disposed on the surface of the lower pressure plate (210).

6. The floor bending and shaping equipment according to claim 5, characterized in that, The length of the guide post (235) is 10~14mm.

7. The floor bending and shaping equipment according to claim 3 or 4, characterized in that, The elastic element (231) is a spring.

8. The floor bending and shaping equipment according to claim 1, characterized in that, An axial limiting block (240) is fixedly provided at least at the end of the lower pressure plate (210) in the length direction.

9. The floor bending and shaping equipment according to claim 1, characterized in that, The front end of the upper pressure plate (220) is equipped with a set of guide rollers (250).

10. The floor bending and shaping equipment according to claim 9, characterized in that, The guide roller assembly (250) includes a plurality of guide rollers spaced laterally, the top of the guide rollers being flush with the surface of the upper pressure plate (220), and the top of the guide rollers having a gap of 0.5 to 1 mm with the front end face of the upper pressure plate (220).

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