Apparatus for planing cellulose acetate sheets

Abstract

The utility model relates to a device of planing acetate fibre plywood includes frame, is equipped with the conveying device who is used for conveying acetate fibre plywood along the transverse on the frame, still is equipped with planing device on the frame, the planing device includes base, driving motor and tool holder, the base can slide up and down along the vertical direction relative frame, driving motor fixed mounting is on the base, the tool holder rotatably installs on the base, and is connected with the output shaft of driving motor through the shaft coupling, the side of tool holder faces the conveying device and is equipped with a plurality of planing knives, and each planing knife is distributed along the same circumference equidistantly with the rotation center axis of tool holder as the center. The utility model's advantage lies in can process acetate fibre plywood to the suitable thickness, and the processing efficiency is high, and the cutting edge position will not cause the surface of acetate fibre plywood to be softened easily and the surface smoothness to be destroyed because of the gathering of heat.

Description

Technical Field

[0001] This utility model relates to equipment for planing cellulose acetate sheets. Background Technology

[0002] Ordinary rubber sheets are a type of industrial rubber sheet, used for general purposes. They are sheet-like products with a certain thickness and large area, made primarily of rubber (which may contain reinforcing materials such as fabric or thin metal sheets), and produced through vulcanization. Currently, there are many types of rubber sheets, including cellulose acetate sheets, which require a planer to cut to the appropriate thickness during processing.

[0003] The existing patent with publication number CN222199048U relates to a planer for cellulose acetate sheets. The cutter holders are symmetrically arranged vertically, with a planing cutter fixedly connected to the center of each opposite end. The planing cutters slice the cellulose acetate sheet to a suitable thickness along the extension direction of the lead screw. This design is relatively simple and convenient. However, this structure relies on the planing cutters to slice in one direction, requiring significant force to drive the cutter holders and placing high demands on the sharpness of the planing cutters. The cutting edges of the planing cutters easily dull and require re-sharpening, resulting in low production efficiency. Furthermore, because the cutting edges are constantly in contact with the cellulose acetate sheet throughout the slicing process, frictional heat causes the temperature at the cutting edge to rise, making the surface of the cellulose acetate sheet prone to softening and damaging its smoothness. Therefore, the existing equipment needs improvement. Summary of the Invention

[0004] The purpose of this invention is to provide a planing device for cellulose acetate sheets, which can process cellulose acetate sheets to a suitable thickness, has high processing efficiency, and the surface of the cellulose acetate sheet will not be easily softened and its smoothness damaged due to heat accumulation at the cutting edge.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The equipment for planing cellulose acetate sheets includes a frame, on which a conveying device is provided for transversely conveying the cellulose acetate sheets, and a planing device is also provided on the frame. The planing device includes a base, a drive motor, and a cutter holder. The base can slide up and down relative to the frame in the vertical direction. The drive motor is fixedly mounted on the base, and the cutter holder is rotatably mounted on the base and connected to the output shaft of the drive motor through a coupling. Several planing cutters are provided on the side of the cutter holder facing the conveying device, and each planing cutter is evenly distributed along the same circumference with the rotation center axis of the cutter holder as the center.

[0006] The advantages of this invention are that it can process cellulose acetate sheets to a suitable thickness, has high processing efficiency, and the surface of the cellulose acetate sheet will not be easily softened and its smoothness damaged due to heat accumulation at the blade position. Attached Figure Description

[0007] Figure 1 and Figure 2 This is a three-dimensional structural diagram of the equipment for planing cellulose acetate sheets in the embodiment, viewed from different perspectives. Figure 3 This is a vertical cross-sectional view of the equipment used for planing cellulose acetate sheets in the embodiment. Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure at point AA; Figure 5 This is a three-dimensional structural diagram of the planing device in the embodiment; Figure 6 This is a cross-sectional view of the planing device in the embodiment. Figure 7 (CC section) Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure at point BB; Figures 8 to 10 The diagram shows cross-sectional views of the equipment used for planing cellulose acetate sheets at different vertical positions in the embodiment. Detailed Implementation

[0008] As attached Figure 1 and attached Figure 2 As shown, the equipment for planing cellulose acetate sheets includes a frame 1, on which a conveying device 2 for conveying cellulose acetate sheets laterally and a planing device 3 are provided.

[0009] As attached Figure 3 To be continued Figure 7 As shown, the planing device 3 includes a base 31, a drive motor 32, and a tool holder 33. The base 31 can slide up and down relative to the frame 1 in the vertical direction. The drive motor 32 is fixedly installed on the base 31. The tool holder 33 is rotatably installed on the base 31 and is connected to the output shaft of the drive motor 32 through a coupling. A plurality of planing blades 34 are provided on the side of the tool holder 33 facing the conveying device 2. Each planing blade 34 is equally spaced along the same circumference with the rotation center axis of the tool holder 33 as the center.

[0010] Specifically, the tool holder 33 extends from the side facing the conveying device 2 and is provided with a plurality of mounting claws 331, and each of the planing blades 34 is mounted on the free end of the mounting claws 331. A pressing post 332 extends from the middle of the tool holder 33 towards the conveying device 2, and a pressure plate 333 is provided at the end of the pressing post. There is a gap between the pressure plate 333 and the conveying device 2, which is larger than the gap between the planing blades 34 and the conveying device 2, so that the cellulose acetate sheet is pressed onto the conveying device 2 without lifting during the entire conveying process.

[0011] As attached Figure 2 Appendix Figure 8 and attached Figure 9 As shown, the conveying device 2 includes a driving roller group 21 and a driven roller group 22 arranged side by side; the driving roller group 21 includes an upper driving roller 211 and a lower driving roller arranged in parallel, forming a main conveying channel between them; both the upper driving roller 211 and the lower driving roller are composed of a roller body and a shaft connected to both ends of the roller body, and the shaft is rotatably mounted on the frame 1 through bearings; a driven sprocket 23 is provided on one end of the shaft of the upper driving roller 211, and the driven sprocket 23 is connected to the driving sprocket on the output shaft of the reducer driven by the motor 24 through a chain; the driven roller group 22 includes an upper driven roller and a lower driven roller arranged in parallel, forming a secondary conveying channel between them; the upper driven roller and the lower driven roller are composed of a roller body and a shaft connected to both ends of the roller body, and the shaft is rotatably mounted on the frame 1 through bearings; a driven sprocket is provided on one end of the shaft of the upper driven roller, and the driven sprocket is connected to the driven sprocket of the upper driving roller 211 through a chain.

[0012] The upper drive roller 211 has several grooves or protrusions extending spirally along the length of the roller body on its surface to enhance the friction with the planed cellulose acetate sheet for conveying.

[0013] The bearings of the upper driving roller 211 and the upper driven roller are mounted on the bearing seat 25. The bearing seat 25 is provided with a guide block 251. The frame 1 is provided with a longitudinal guide hole that cooperates with the guide block 251 at a corresponding position. The guide block 251 is slidably disposed in the guide hole, so that the bearing seat 25 can move up and down in the vertical direction. A compression spring 26 is provided between the bearing seat 25 and the frame 1. Under the action of the compression spring 26, the upper driving roller 211 and the upper driven roller are both subjected to elastic force in the direction of the lower driving roller and the lower driven roller.

[0014] As attached Figure 2 Appendix Figure 8 To be continued Figure 10 As shown, a guide block 311 is provided on the base 31. The height adjustment device of the planing device 3 includes a lead screw 41, a nut seat 42, a sliding seat 43 and a fixing device 44. The sliding seat 43 can slide back and forth along the transverse direction on the frame 1 and can be fixed on the frame 1 by the fixing device 44. The fixing device 44 can be specifically as shown in the figure, by providing a screw hole on the sliding seat 43 and a bolt with a rotating arm that can be connected to the screw hole. During fixed installation, the rotating arm 441 is rotated to screw the bolt 442 into the screw hole, and the nut of the bolt abuts against the frame 1, so that the sliding seat 43 is fixed relative to the frame 1.

[0015] The sliding seat 43 is provided with an inclined groove 431 that is inclined laterally to accommodate and slide the guide block 311. One end of the lead screw 41 is fixedly connected to the base 31 and the length direction of the lead screw 41 is parallel to the lateral direction. The other end is connected to the nut seat 42. The nut seat 42 is rotatably mounted on the sliding seat 43 around the central axis of the lead screw 41. The nut seat 42 extends outward and is provided with a handle for driving its rotation. When the handle is turned forward or backward, the nut seat 42 and the sliding seat 43 move back and forth laterally. The groove wall of the inclined groove 431 acts on the guide block 311 to drive the base 31 to slide up and down relative to the frame 1 in the vertical direction. This enables a large lateral adjustment distance and a fine vertical height adjustment, achieving high-precision height adjustment of the planing device 3.

[0016] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited thereto. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model are equivalent substitutions and are included within the protection scope of the present utility model.

Claims

1. Apparatus for shaving cellulose acetate sheets, comprising a frame, on which there are conveying means for conveying the cellulose acetate sheets in the transverse direction, characterized in that, The frame is also equipped with a planing device; the planing device includes a base, a drive motor and a tool holder. The base can slide up and down relative to the frame in the vertical direction. The drive motor is fixedly installed on the base. The tool holder is rotatably installed on the base and connected to the output shaft of the drive motor through a coupling. Several planing cutters are provided on the side of the tool holder facing the conveying device. Each planing cutter is evenly distributed along the same circumference with the rotation center axis of the tool holder as the center.

2. The apparatus for shaving cellulose acetate sheets according to claim 1, wherein The conveying device includes a set of driving rollers and a set of driven rollers arranged side by side. The driving roller set includes an upper driving roller and a lower driving roller arranged in parallel, forming a main conveying channel between them. Both the upper and lower driving rollers consist of a roller body and shafts connected to both ends of the roller body. The shafts are rotatably mounted on the frame via bearings. A driven sprocket is provided on one end of the shaft of the upper driving roller. The driven sprocket is connected to a driving sprocket on the output shaft of a reducer driven by a motor via a chain. The driven roller set includes an upper driven roller and a lower driven roller arranged in parallel, forming a secondary conveying channel between them. Both the upper and lower driven rollers consist of a roller body and shafts connected to both ends of the roller body. The shafts are rotatably mounted on the frame via bearings. A driven sprocket is provided on one end of the shaft of the upper driven roller. This driven sprocket is connected to the driven sprocket of the upper driving roller via a chain.

3. The apparatus for shaving cellulose acetate sheets according to claim 2, wherein The surface of the upper drive roller is provided with several grooves or protrusions that extend spirally along the length of the roller.

4. The equipment for planing cellulose acetate sheets according to claim 2, characterized in that, The bearings of the upper driving roller and the upper driven roller are mounted on bearing seats; the bearing seats are provided with guide blocks, and the frame is provided with longitudinal guide holes that cooperate with the guide blocks at corresponding positions. The guide blocks are slidably disposed in the guide holes, so that the bearing seats can move up and down in the vertical direction; a compression spring is provided between the bearing seats and the frame. Under the action of the compression spring, the upper driving roller and the upper driven roller are both subjected to elastic forces in the direction of the lower driving roller and the lower driven roller.

5. The apparatus for shaving cellulose acetate sheets according to claim 1, wherein A plurality of mounting claws are provided on the side of the tool holder facing the conveying device, and each of the planing tools is mounted on the free end of the mounting claw.

6. The apparatus for shaving cellulose acetate sheets according to claim 5, wherein A pressing column is provided extending from the middle of the tool holder towards the conveying device. A pressure plate is provided at the end of the pressing column. There is a gap between the pressure plate and the conveying device, which is greater than the gap between the planing tool and the conveying device.

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