Double-sided sanding machine

Abstract

The utility model discloses a double-faced sanding machine which comprises a machining unit and a control cabinet used for controlling the machining unit. The machining unit comprises a support, a conveying assembly fixedly arranged on the support and used for conveying a sanded object and a sanding assembly fixedly arranged on the support and used for sanding the sanded object. Wherein the sanding assembly comprises a plurality of pressing roller sets connected to the support through bearings and a plurality of sanding belts arranged on the pressing roller sets in a sleeving mode, every two pressing roller sets are oppositely arranged, and each pressing roller set comprises a plurality of pressing rollers parallel to one another. The double-sided sanding device can simultaneously carry out double-sided sanding on the object to be sanded, has a good sanding effect, is suitable for processing the plastic foam plate, is used for sanding the plastic foam plate, and is suitable for being used when the plastic foam plate is sanded.

Description

Technical Field

[0001] This utility model belongs to the field of plastic foam processing equipment, and relates to a sanding machine, specifically a double-sided sanding machine that can perform double-sided sanding simultaneously and has a good sanding effect. Background Technology

[0002] Before being put into use, plastic foam boards usually need to be cleaned, deburred, and smoothed and polished. Currently, the most suitable equipment for performing the above processing on plastic foam boards is a sander.

[0003] Currently used sanders are usually single-sided sanders. These sanders can only sand one side of the plastic foam board. If you want to sand the plastic foam board on both sides, you need to sand it twice, which is less efficient.

[0004] In addition, the sanding belts of existing sanders are usually arranged vertically. Each sander has multiple vertically arranged sanding belts. Since each sanding belt is in line contact with the plastic foam board and there is a gap between each pair of sanding belts, when the plastic foam board warps significantly, the warped part of the plastic foam board will be squeezed when passing through the contact line and will return to its original shape when passing through the gap. This causes the plastic foam board to deform continuously during the sanding process, which easily leads to unstable sanding results. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model aims to provide a double-sided sander that can perform double-sided sanding on plastic foam boards and improve the sanding effect.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A double-sided sander includes a processing unit and a control cabinet for controlling the processing unit;

[0008] The processing unit includes a support, a conveying assembly fixed on the support for conveying the object to be sanded, and a sanding assembly fixed on the support for sanding the object to be sanded.

[0009] The sanding assembly includes multiple pressure roller groups connected to a support by bearings and multiple sanding belts fitted on the pressure roller groups. The pressure roller groups are arranged in pairs facing each other, and each pressure roller group includes multiple parallel pressure rollers.

[0010] As a limitation of this utility model, the sanding assembly also includes a first movable bearing seat fixed on the bracket for changing the position of the pressure roller group.

[0011] As a further limitation of this utility model, the conveying assembly includes an input roller group and an output roller group, wherein the input roller group includes at least one pair of rollers arranged perpendicular to the direction of movement of the object being sanded, and the output roller group includes at least one pair of rollers arranged parallel to the direction of movement of the object being sanded. Each roller is bearing-connected to a bracket. The discharge end of the input roller group is connected to the feed end of the sanding assembly, and the feed end of the output roller group is connected to the discharge end of the sanding assembly.

[0012] As a further limitation of this utility model, the input roller assembly also includes a second movable bearing seat fixed on the support for changing the position of the roller shaft.

[0013] As another limitation of this utility model, the processing unit also includes a cleaning assembly mounted on the bracket for cleaning the sanded object. The cleaning assembly includes at least one pair of bearings connected to the bracket and arranged perpendicular to the direction of movement of the sanded object, and an air tank connected to the cleaning roller. The cleaning roller includes a hollow shaft, a brush fixed on the hollow shaft, and an exhaust hole opened on the hollow shaft.

[0014] As a further limitation of this utility model, the cleaning assembly also includes a third movable bearing seat fixed on the bracket for changing the position of the cleaning roller.

[0015] As a third limitation of this utility model, the processing unit also includes a dust collection assembly fixed on the support, the dust collection assembly including a plurality of dust collection pipes fixed on the support for dust collection and an industrial vacuum cleaner connected to the dust collection pipes.

[0016] As a further limitation of this utility model, the sanding belt is provided with dust suction holes.

[0017] As a further limitation of this utility model, a limiting plate device for preventing dust from escaping is fixed on the bracket.

[0018] As a further limitation of this utility model, a ruler for limiting the direction of travel of the object being sanded is fixed on the bracket.

[0019] By adopting the above-mentioned technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows:

[0020] (1) This utility model designs a double-sided sander that can perform double-sided sanding and improve the sanding effect. Through the pressure roller group and the sanding belt sleeved on the pressure roller group, when the object to be sanded passes through the pressure roller group, both sides of the object to be sanded and the sanding belt in contact can be sanded at the same time. Since the sanding belt always keeps in contact with the object to be sanded, the shape of the object to be sanded can be kept relatively stable, thus improving the sanding effect.

[0021] (2) The present invention is provided with a first movable bearing seat, a second movable bearing seat and a third movable bearing seat. The positions of the pressure roller group, the input roller group and the cleaning roller can be changed through the three movable bearing seats, thereby enabling the present invention to adapt to sanded objects of different thicknesses.

[0022] (3) The present invention is provided with a cleaning component. The cleaning roller in the cleaning component can sweep off the powder generated by the sanded object during the sanding process. At the same time, the air jet hole opened on the cleaning roller can also assist the cleaning roller in blowing off the powder, thus ensuring the cleanliness of the sanded object.

[0023] (4) This utility model is equipped with a dust collection component, which can collect the powder generated during the sanding process and ensure the cleanliness of the working environment.

[0024] (5) The sanding belt of this utility model is provided with dust suction holes. Dust during the sanding process can be dispersed through the dust suction holes and absorbed by the dust suction components, which enhances the dust suction effect. At the same time, a limiting plate device for preventing dust from being dispersed is also fixed on the bracket, which further prevents dust from being dispersed and enhances the dust suction effect.

[0025] (6) This utility model is equipped with a straightedge, which can restrict the sanded object to its original direction of movement and prevent the sanded object from shifting during the sanding process.

[0026] In summary, this utility model can simultaneously perform double-sided sanding on the object being sanded and improve the sanding effect. It is suitable for processing plastic foam boards and is used for sanding plastic foam boards. Attached Figure Description

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model (the gas storage tank and industrial vacuum cleaner are not shown).

[0029] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present utility model;

[0030] Figure 3 This is a schematic diagram of the assembly structure of the first pressure roller group and the first sanding belt in an embodiment of this utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the first cleaning roller in an embodiment of this utility model;

[0032] Figure 5 This is a schematic diagram showing the positions of the limiting device and the dust extraction pipe in an embodiment of this utility model;

[0033] Figure 6This is a schematic diagram showing the use of the straightedge in an embodiment of this utility model;

[0034] Figure 7 This is a schematic diagram of the support structure in an embodiment of the present utility model;

[0035] In the diagram: 1. Control cabinet; 2. Processing unit;

[0036] 21. Input roller assembly; 22. Output roller assembly; 23. Sanding assembly; 24. Support frame; 25. Cleaning assembly; 26. Suction pipe; 27. Straightedge; 28. Limiting device;

[0037] 211. First input roller; 212. Second input roller;

[0038] 221. First output roller; 222. Second output roller;

[0039] 231. First pressure roller group; 232. First sanding belt; 233. Dust suction hole;

[0040] 241. First metal plate; 242. Second metal plate; 243. Third metal plate; 244. Fourth metal plate;

[0041] 251. First cleaning roller; 252. Second cleaning roller;

[0042] 2511, Hollow shaft; 2512, Brush; 2513, Vent hole;

[0043] 281. Upper limit plate; 282. Lower limit plate. Detailed Implementation

[0044] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0045] This embodiment discloses a double-sided sander, such as Figure 1 As shown, the system includes a processing unit 2 and a control cabinet 1 fixed on the processing unit 2. The processing unit 2 includes a support 24, a conveying assembly, a sanding assembly 23, a cleaning assembly 25, and a dust extraction assembly. The control cabinet 1 is a conventional control cabinet. In this embodiment, the control cabinet 1 can control the start and stop of the double-sided sander and can adjust the positions of the first input roller 211, the first pressure roller group 231, and the first cleaning roller 251 by transmitting signals to the first movable bearing seat, the second movable bearing seat, and the third movable bearing seat.

[0046] like Figure 7As shown, the bracket 24 includes a first metal plate 241, a second metal plate 242, a third metal plate 243, and a fourth metal plate 244. The first metal plate 241 and the second metal plate 242 are arranged opposite to each other. The third metal plate 243 and the fourth metal plate 244 are located between the first metal plate 241 and the second metal plate 242, and the two ends of the third metal plate 243 and the fourth metal plate 244 are fixedly connected to the first metal plate 241 and the second metal plate 242, respectively. The third metal plate 243 is located at the top of the first metal plate 241 and the second metal plate 242, and the fourth metal plate 244 is located in the lower middle part of the first metal plate 241 and the second metal plate 242. The space enclosed by the first metal plate 241, the second metal plate 242, the third metal plate 243, and the fourth metal plate 244 encloses the conveying assembly, the sanding assembly 23, and the cleaning assembly 25.

[0047] like Figure 2 As shown, straightedges 27 are threadedly connected to the opposing surfaces of the first metal plate 241 and the second metal plate 242. The positions of the straightedges 27 correspond to the positions of the input channel, the sanding channel, and the cleaning channel. Two straightedges 27 are provided, as shown. Figure 6 As shown, two straightedges 27 are respectively mounted on the first metal plate 241 and the second metal plate 242 by bolts and nuts. By changing the fixed position of the straightedges 27 on the bolts, the distance between the two straightedges 27 can be adjusted to limit the movement of sanded objects of different widths.

[0048] like Figure 5 As shown, limiting devices 28 are fixed at both ends of the third metal plate 243 and the fourth metal plate 244. Each limiting device 28 includes an upper limit plate 281 and a lower limit plate 282. Two upper limit plates 281 are provided, respectively fixed at the two ends of the third metal plate 243 facing the fourth metal plate 244. Similarly, two lower limit plates 282 are provided, respectively fixed at the two ends of the fourth metal plate 244 facing the third metal plate 243. A gap is left between the upper limit plates 281 and the lower limit plates 282 to allow the object being sanded to pass through. In this embodiment, the limiting devices 28 can confine the powder generated during sanding within the space formed by the support 24 and the limiting devices 28, preventing powder diffusion.

[0049] like Figure 2As shown, the conveying assembly includes an input roller group 21 and an output roller group 22. The input roller group 21 includes a second movable bearing seat fixed to a bracket 24, a first input roller 211 mounted on the second movable bearing seat via bearings, and a second input roller 212 connected to the bracket 24 via bearings. The second movable bearing seat is a conventional movable bearing seat. The first input roller 211 and the second input roller 212 are located on the same vertical plane, with the first input roller 211 positioned above the second input roller 212. The vertical position of the first input roller 211 can be changed via the second movable bearing seat. The output roller group 22 includes a first output roller 221 and a second output roller 222 connected to the bracket 24 via bearings. The first output roller 221, the second output roller 222, and the second input roller 212 are located on the same horizontal plane. The first input roller 211, the second input roller 212, the first output roller 221, and the second output roller 222 are all rollers with identical structures.

[0050] It should be added here that the space formed between the first input roller 211 and the second input roller 212 is the input channel for the object to be sanded. By adjusting the height of the first input roller 211, the height of the input channel can be changed to accommodate objects of different thicknesses to be sanded.

[0051] like Figure 2 and Figure 3 As shown, the sanding assembly 23 is disposed between the input roller group 21 and the output roller group 22. The sanding assembly 23 includes a first pressure roller group 231, a second pressure roller group, a first sanding belt 232 sleeved on the first pressure roller group 231, a second sanding belt sleeved on the second pressure roller group, and a first movable bearing seat fixed on the bracket 24. The first pressure roller group 231 includes four pressure rollers, which are arranged on the same horizontal plane. All four pressure rollers are connected to the first movable bearing seat by bearings. The first movable bearing seat is an existing movable bearing seat with four bearing mounting seats, each controlled by a servo motor. When the first movable bearing seat is adjusted, the four pressure rollers in the first pressure roller group 231 will move in the same vertical direction simultaneously to change their position in the vertical direction. The second pressure roller group has the same structure as the first pressure roller group 231, and the first pressure roller group 231 is arranged opposite to the second pressure roller group, with the first pressure roller group 231 located above the second pressure roller group. The side of the second sanding belt facing the first sanding belt 232 is tangent to the top of the first output roller 221, the second output roller 222, and the second input roller 212. Multiple dust suction holes 233 are provided on both the first sanding belt 232 and the second sanding belt, and the multiple dust suction holes 233 are evenly distributed on the first sanding belt 232 and the second sanding belt.

[0052] It should be added here that the space formed between the first sanding belt 232 and the second sanding belt is the sanding channel for the object being sanded. By adjusting the height of the first pressure roller group 231, the height of the sanding channel can be changed to adapt to sanding objects of different thicknesses.

[0053] like Figure 2 and Figure 4 As shown, the cleaning assembly 25 is disposed between the first output roller 221 and the second output roller 222. The cleaning assembly 25 includes a third movable bearing seat fixed on the bracket 24, a first cleaning roller 251 mounted on the third movable bearing seat via bearings, a second cleaning roller 252 connected to the bracket 24 by bearings, and an air tank communicating with the first cleaning roller 251 and the second cleaning roller 252. The third movable bearing seat is a conventional movable bearing seat. The first cleaning roller 251 and the second cleaning roller 252 are located on the same vertical plane. The first cleaning roller 251 includes a hollow shaft 2511, a brush 2512 fixed on the hollow shaft 2511, and an exhaust hole 2513 opened on the hollow shaft 2511. The second cleaning roller 252 has the same structure as the first cleaning roller 251. In actual use, the rotation of the first cleaning roller 251 and the second cleaning roller 252 can sweep away the dust on the surface of the sanded object, and at the same time, the gas blown out through the exhaust port can assist the first cleaning roller 251 and the second cleaning roller 252 in blowing away the dust on the surface of the sanded object.

[0054] It should be added here that the space formed between the first cleaning roller 251 and the second cleaning roller 252 is the cleaning channel for the sanded object. By adjusting the third movable bearing seat, the position of the first cleaning roller 251 in the vertical direction can be changed, thereby changing the height of the cleaning channel to adapt to the cleaning of sanded objects of different thicknesses.

[0055] like Figure 5 As shown, the dust collection assembly includes a dust collection pipe 26 fixed on the bracket 24 and an industrial vacuum cleaner connected to the dust collection pipe 26. Multiple dust collection pipes 26 can be provided depending on the actual situation. In this embodiment, eight dust collection pipes 26 are provided. Six of the dust collection pipes 26 have their suction ports facing the positions between each roller in the first and second roller groups, one dust collection pipe 26 has its suction port facing below the second cleaning roller 252, and one dust collection pipe 26 has its suction port facing the top of the first cleaning roller 251. In actual use, the six dust collection pipes 26 located between each roller in the first and second roller groups will collect the dust emitted from the dust collection holes 233 of the sanding belt during the sanding process. The dust collection pipes 26 located at the first and second cleaning rollers 251 can collect the dust generated during the cleaning process.

[0056] When using this embodiment, first adjust the positions of the first input roller 211, the first pressure roller group 231, and the first cleaning roller 251 through the control box 1 to match the thickness of the object to be sanded. Then adjust the distance between the two guides 27 so that the distance between the two guides 27 is the same as the width of the object to be sanded. After the adjustment is completed, the processing unit 2 can be turned on, and the object to be sanded can be put into the feed end of the input roller. The object to be sanded passes through the input channel, the sanding channel, and the cleaning channel to complete the sanding work.

[0057] It should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-sided sander, characterized in that: Includes processing units; The processing unit includes a support, a conveying assembly fixed on the support for conveying the object to be sanded, and a sanding assembly fixed on the support for sanding the object to be sanded. The sanding assembly includes multiple pressure roller groups connected to a support by bearings and sanding belts fitted on the pressure roller groups. The pressure roller groups are parallel to each other and arranged opposite each other in pairs. The space formed between the sanding belts fitted on the opposite pressure roller groups is the sanding channel for the object to be sanded. The pressure roller group includes multiple parallel pressure rollers.

2. A double-sided sander according to claim 1, characterized in that: The sanding assembly also includes a first movable bearing seat fixed on the bracket for changing the spacing between each pressure roller group. Both ends of the pressure roller group are mounted on the bracket via bearings and the first movable bearing seat.

3. A double-sided sander according to claim 2, characterized in that: The conveying assembly includes an input roller group and an output roller group. The input roller group includes at least one pair of rollers arranged perpendicular to the direction of movement of the object being sanded, and the output roller group includes at least one pair of rollers arranged parallel to the direction of movement of the object being sanded. Each roller is bearing-connected to a bracket. The discharge end of the input roller group is connected to the feed end of the sanding assembly, and the feed end of the output roller group is connected to the discharge end of the sanding assembly.

4. A double-sided sander according to claim 3, characterized in that: The input roller assembly also includes a second movable bearing housing fixed on the support for changing the spacing between the rollers. Both ends of the rollers are mounted on the support via bearings and the second movable bearing housing.

5. A double-sided sander according to any one of claims 1-4, characterized in that: The processing unit also includes a cleaning assembly mounted on a support for cleaning the sanded object. The cleaning assembly is located near the discharge port of the processing unit. The cleaning assembly includes at least one pair of cleaning rollers with bearings connected to the support and arranged perpendicular to the direction of movement of the sanded object, and an air tank connected to the cleaning rollers. The cleaning rollers include a hollow shaft, a brush fixed on the hollow shaft, and an exhaust hole opened on the hollow shaft. The air tank is connected to the hollow shaft.

6. A double-sided sander according to claim 5, characterized in that: The cleaning assembly also includes a third movable bearing seat fixed on the bracket for changing the spacing between the cleaning rollers. Both ends of the cleaning rollers are mounted on the bracket via bearings and the third movable bearing seat.

7. A double-sided sander according to any one of claims 1-4 and 6, characterized in that: The processing unit also includes a dust collection assembly fixed on a support frame. The dust collection assembly includes multiple dust collection pipes fixed on the support frame for dust collection and an industrial vacuum cleaner connected to the dust collection pipes. The dust collection port of the dust collection pipe faces the inside of the processing unit.

8. A double-sided sander according to claim 7, characterized in that: The sanding belt has multiple dust suction holes, which are evenly distributed on the sanding belt.

9. A double-sided sander according to claim 8, characterized in that: The inlet and outlet positions of the bracket are both equipped with limiting plates to prevent dust from escaping.

10. A double-sided sander according to claim 9, characterized in that: A ruler is fixed on the side of the support facing the inside of the processing unit to limit the direction of travel of the object being sanded.

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