Double-sided sanding machine and method thereof

Abstract

A double-sided sanding and embossing machine belongs to the field of textile sanding equipment and comprises a transfer roller set, a front rough grinding device, a front accurate grinding device, a reverse friction device and a dust collecting device, and the front rough grinding device comprises a rubber roller, a first sand roller and a first adjusting assembly which are horizontally and oppositely arranged; the front face fine grinding device comprises a plurality of sanding rollers which are horizontally arranged at intervals and second adjusting assemblies which are arranged between every two adjacent sanding rollers and used for adjusting the contact area of the cloth and the sanding rollers; the reverse friction device comprises a plurality of second emery rollers and third adjusting assemblies which are arranged between every two adjacent second emery rollers and used for adjusting the contact area of the cloth and the second emery rollers. According to the double-sided sanding device, double-sided sanding can be carried out on the cloth without turning over the cloth, sanding of different fine degrees can be carried out according to the use requirements of different surfaces, dust vertically falls down and cannot be left on the cloth when the reverse-side friction device which is vertically arranged carries out reverse-side sanding, and by means of the arrangement mode, the equipment span is greatly reduced, and the equipment size is reduced.

Description

Technical Field

[0001] The invention belongs to the field of textile sanding equipment, in particular to a double-sided sanding and polishing machine and a method thereof. Background Art

[0002] Sanding is a process in the textile industry. It is a process in which the fabric is rubbed by a sanding machine and corundum leather to form a layer of short fluff on the surface of the fabric. It not only retains the original characteristics but also gives the fabric a new style, increasing warmth and softness. It is thick and soft, with a rich texture, and has the characteristics of not fading. The color is long-lasting and is suitable for winter warmth products and products used close to the body. Among them, according to the differences in usage scenarios, there is a double-sided sanding product. Due to the different functions of its two sides, the degree of sanding on both sides is also different. Conventional single-sided sanding machines need to frequently replace sanding rollers and debug equipment during processing, which is extremely inconvenient. If sanding rollers are added in the direction of fabric conveying to sand the back of the fabric, the stroke length of the equipment is greatly increased, and the dust removal equipment supporting the equipment also needs to be increased, which further increases the size and cost of the equipment and needs to be improved. Summary of the invention

[0003] The object of the present invention is to overcome the disadvantages of the prior art and provide a double-sided sanding and polishing machine and method thereof.

[0004] The present invention adopts the following technical solution: A double-sided rough grinding and polishing machine comprises a transfer roller group, a front rough grinding device, a front fine grinding device, a back friction device and a dust collecting device, wherein the front rough grinding device and the front fine grinding device are arranged in sequence in a horizontal direction. The transfer roller group is vertically distributed at the front end of the front rough grinding device, receiving the spread fabric and conveying it vertically upward; The front rough grinding device comprises a rubber roller, a first sand roller and a first adjustment component which are arranged horizontally and relatively to each other, the rubber roller is in contact with the first sand roller, and the first adjustment component is arranged above the rubber roller and the first sand roller to adjust the contact area between the cloth and the first sand roller; The front fine grinding device includes a plurality of horizontally spaced sanding rollers and a second adjustment component arranged between two adjacent sanding rollers for adjusting the contact area between the cloth and the sanding rollers, and the sanding rollers and the sand rollers are located on the same side of the cloth; The reverse friction device includes a plurality of second emery rollers and a third adjustment component arranged between two adjacent second emery rollers to adjust the contact area between the cloth and the second emery rollers, the second emery rollers being located on the other side of the cloth and arranged vertically above the front fine grinding device; The dust collecting device comprises a dust hopper, a sealed chamber and a negative pressure fan. The dust hopper is arranged below the front rough grinding device and the front fine grinding device; the sealed chamber is sealed outside the reverse friction device; the negative pressure fan is respectively connected to the dust hopper and the sealed chamber.

[0005] Preferably, the dust collection device also includes a first air inlet, a second air inlet, a conveying bellows and a discharge port, the first air inlet is connected to the dust hopper; the second air inlet is connected to the sealed chamber; the conveying bellows is connected to the first air inlet and the second air inlet, and includes an air inlet section connected to the first air inlet and the second air inlet respectively, a transfer section connected to the air inlet section and extending vertically upward, and a discharge section connected to the transfer section and extending horizontally backward; the discharge port is arranged at the bottom of the discharge section, and the negative pressure fan is arranged on the transfer section.

[0006] Preferably, the first adjustment component includes a first adjustment roller, a first mounting block, a first slider and a first screw, the first adjustment roller is arranged above the first sand roller; the first mounting blocks are arranged on both sides of the first adjustment roller, and are formed with a first sliding groove extending in a horizontal direction, and are also provided with a scale arranged along the extension direction of the first sliding groove; the first slider is arranged in the first sliding groove for back and forth movement, and the end of the first adjustment roller is arranged on the first slider; the first screw is arranged along the extension direction of the first sliding groove, passes through the first mounting block, extends into the first sliding groove and is threadedly connected to the first slider.

[0007] Preferably, the first adjustment assembly further includes an auxiliary adjustment roller, which is arranged above the first emery roller opposite to the first adjustment roller, the first adjustment roller is located in front of the first emery roller, and the auxiliary adjustment roller is located behind the first emery roller.

[0008] Preferably, the second adjustment component includes a second adjustment roller, a guide rail, a second slider and a second screw; the second adjustment roller is arranged between two adjacent grinding rollers and above the grinding roller; the guide rail is arranged on both sides of the second adjustment roller in the vertical direction; the second slider can be raised and lowered on the guide rail, and the two ends of the second adjustment roller are respectively arranged on the second sliders on both sides and move up and down with them; the second screw passes through the second slider to control its lifting and lowering.

[0009] Preferably, the third adjusting assembly includes a third adjusting roller and an electric push rod, the third adjusting roller is arranged between two adjacent second sand rollers; the electric push rod is arranged on both sides of the third adjusting roller to push the third adjusting roller to move back and forth in the horizontal direction.

[0010] Preferably, the grinding roller comprises a roller core and bristles formed on the surface of the roller core, and the material of the bristles is graphene.

[0011] Preferably, the mesh number of the first emery roller is 120-1200 meshes, and the mesh number of the second emery roller is 80-200 meshes.

[0012] A double-sided sanding and polishing method, based on the above double-sided sanding and polishing method, comprising: (1) Guide the installation, select the first and second sanding rollers with appropriate meshes according to the required sanding length of the fabric to be processed, install and replace them, and pass the fabric through the transfer roller group, the front rough grinding device, the front fine grinding device, and the back friction device in sequence; (2) Debugging the device, and driving the first adjusting component, the second adjusting component, and the third adjusting component to move according to the required sanding length to respectively change the contact area between the cloth and the first sanding roller, the sanding roller, and the second sanding roller; (3) A starting device drives the transfer roller group, the rubber roller, the first sanding roller, the grinding roller, and the second sanding roller to rotate; (4) The first front side sanding, the fabric passes through the rubber roller and the first sanding roller from bottom to top through the transfer roller group, the first sanding roller rotates and performs the first sanding on one side of the fabric; (5) The second front side sanding, the fabric is transported horizontally through the sanding roller, and the sanding roller is rotated to sand the position of the first sanding for the second time; (6) Back side sanding: the fabric is transported from bottom to top and passes through the second sanding roller, which rotates and sands the back side of the fabric.

[0013] Preferably, in step (3), the rubber roller and the first emery roller rotate at a differential speed and in opposite directions, and the cloth passes between the rubber roller and is transported upward while the second emery roller rubs the cloth under the action of the differential rotation.

[0014] From the above description of the present invention, it can be seen that compared with the prior art, the present invention has the following beneficial effects: the cloth can be sanded on both sides without turning over the cloth, and sanding can be performed to different degrees of fineness according to the use requirements of different sides. The vertically arranged reverse friction device causes dust to fall vertically when sanding the reverse side without remaining on the cloth. This arrangement also greatly reduces the span of the equipment and the size of the equipment. The dust generated in the front and back grinding processes are collected by the dust hopper and the sealed chamber to prevent the dust from falling into the other process. The dust is sucked into the transfer section through the first air inlet and the second air inlet at the same time and discharged from the discharge port. Due to the short stroke of the equipment, one negative pressure fan can be used to meet the dust collection needs, further reducing costs. The position of the first slider can be adjusted with reference to the scale on the first mounting block to accurately control the degree of rough grinding on the front side and improve the sanding effect; The auxiliary regulating roller can prevent the back side of the cloth from contacting the first sand roller when the cloth is output. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 The structure of the present invention is schematically shown Figure 2; Figure 3 The structure of the present invention is schematically shown Figure 3 ; Figure 4 is a cross-sectional view of the present invention; Figure 5 It is a schematic diagram of the cloth conveying process of the present invention; Figure 6 for Figure 1 A partial enlarged view of the middle A; Figure 7 for Figure 3 A partial enlarged view of point B in the middle; Figure 8 for Figure 4 The partial enlarged picture of the middle C; In the figure: 1-transport roller group; 2-front rough grinding device; 21-rubber roller; 22-first sand roller; 23-first adjustment assembly; 231-first adjustment roller; 232-first mounting block; 233-first slider; 234-first screw; 235-auxiliary adjustment roller; 236-first sliding groove; 237-scale; 3-front fine grinding device; 31-grinding roller; 32-second adjustment assembly; 321-second adjustment roller; 322-guide rail; 3 23-second slider; 324-second screw; 4-reverse friction device; 41-second sand roller; 42-third adjustment component; 421-third adjustment roller; 422-electric push rod; 5-dust collection device; 51-dust hopper; 52-sealed chamber; 53-negative pressure fan; 54-first air inlet; 55-second air inlet; 56-conveying bellows; 561-air inlet section; 562-transfer section; 563-discharging section; 57-discharging port. DETAILED DESCRIPTION

[0017] The present invention is further described below through specific implementation modes.

[0018] Reference Figures 1 to 8 As shown, a double-sided roughing and polishing machine includes a transfer roller group 1, a front rough grinding device 2, a front fine grinding device 3, a back friction device 4, and a dust collection device 5.

[0019] The transfer roller group 1 is vertically distributed at the front end of the front rough grinding device 2, inputs the fabric from the bottom, receives the fabric after spreading, and transports it vertically upward.

[0020] The front rough grinding device 2 and the front fine grinding device 3 are arranged one after another in the horizontal direction.

[0021] The front rough grinding device 2 includes a rubber roller 21, a first sand roller 22 and a first adjustment component 23 which are arranged horizontally relative to each other. The rubber roller 21 fits the first sand roller 22. The first adjustment component 23 is arranged above the rubber roller 21 and the first sand roller 22 to adjust the contact area between the cloth and the first sand roller 22. Specifically, the first adjustment component 23 includes a first adjustment roller 231, a first mounting block 232, a first slider 233, a first screw 234 and an auxiliary adjustment roller 235. The first adjustment roller 231 is arranged above the first sand roller 22; the first mounting blocks 232 are arranged on both sides of the first adjustment roller 231, and a first sliding groove 236 extending in the horizontal direction is formed thereon, and a scale 237 arranged along the extending direction of the first sliding groove 236 is also provided; the first slider 233 is arranged in the first sliding groove 236 to move back and forth, and the first adjustment roller 235 is provided with a first adjusting roller 231, and the first adjusting roller 231 is provided with a first adjusting roller 231. The end of the section roller 231 is arranged on the first slider 233; the first screw 234 is arranged along the extension direction of the first sliding groove 236, passes through the first mounting block 232, extends into the first sliding groove 236 and is threadedly connected to the first slider 233; the auxiliary adjusting roller 235 is arranged above the first emery roller 22 opposite to the first adjusting roller 231, the first adjusting roller 231 is located in front of the first emery roller 22, and the auxiliary adjusting roller 235 is located behind the first emery roller 22. The auxiliary adjusting roller 235 can prevent the back side of the cloth from contacting the first emery roller 22 when the cloth is output.

[0022] The front fine grinding device 3 includes a plurality of horizontally spaced sanding rollers 31 and a second adjustment component 32 arranged between two adjacent sanding rollers 31 to adjust the contact area between the cloth and the sanding roller 31. The sanding roller 31 and the sand roller are located on the same side of the cloth. The cloth can be sanded to different degrees of fineness by the horizontally arranged front rough grinding device 2 and the front fine grinding device 3, and then the cloth is conveyed to the vertically arranged reverse friction device 4 for reverse sanding. Specifically, the second adjustment component 32 includes a second adjustment roller 321, a guide rail 322, a second slider 323 and a second screw 324; the second adjustment roller 321 is arranged between two adjacent sanding rollers 31 and above the sanding rollers 31; the guide rail 322 is arranged on both sides of the second adjustment roller 321 in the vertical direction; the second slider 323 can be raised and lowered on the guide rail 322, and the two ends of the second adjustment roller 321 are respectively arranged on the second sliders 323 on both sides and move up and down with them; the second screw 324 passes through the second slider 323 to control its lifting and lowering. Furthermore, the grinding roller 31 includes a roller core and bristles formed on the surface of the roller core, and the material of the bristles is graphene.

[0023] The reverse friction device 4 includes a plurality of second sand rollers 41 and a third adjustment component 42 arranged between two adjacent second sand rollers 41 to adjust the contact area between the cloth and the second sand roller 41. The second sand roller 41 is located on the other side of the cloth and is arranged vertically above the front fine grinding device 3. Specifically, the third adjustment component 42 includes a third adjustment roller 421 and an electric push rod 422. The third adjustment roller 421 is arranged between two adjacent second sand rollers 41; the electric push rod 422 is arranged on both sides of the third adjustment roller 421 to push the third adjustment roller 421 to move back and forth in the horizontal direction. The mesh number of the first sand roller 22 is 120-1200 mesh, and the mesh number of the second sand roller 41 is 80 mesh-200 mesh.

[0024] The dust collecting device 5 includes a dust hopper 51, a sealed chamber 52 and a negative pressure fan 53. The dust hopper is arranged below the front rough grinding device 2 and the front fine grinding device 3; the sealed chamber 52 is sealed and arranged outside the reverse friction device 4; the negative pressure fan 53 is connected to the dust hopper 51 and the sealed chamber 52 respectively. Since the cloth enters from the bottom of the equipment, and the height of the dust hopper 51 needs to be reserved below the first sand roller 22, in order to arrange the structural layout reasonably, the transfer roller group 1 conveys the cloth in a vertical upward manner to the front rough grinding device 2. When the cloth is output from the front rough grinding device 2, it needs to be restored to horizontal conveyance, so it is necessary to add an auxiliary adjustment roller 235 to prevent the back of the cloth from contacting the first sand roller 22.

[0025] Specifically, the dust collection device 5 also includes a first air inlet 54, a second air inlet 55, a conveying bellows 56 and a discharge port 57. The first air inlet 54 is connected to the dust hopper 51; the second air inlet 55 is connected to the sealed chamber 52; the conveying bellows 56 is connected to the first air inlet 54 and the second air inlet 55, and includes an air inlet section 561 connected to the first air inlet 54 and the second air inlet 55 respectively, a transfer section 562 connected to the air inlet section 561 and extending vertically upward, and a discharge section 563 connected to the transfer section 562 and extending horizontally backward; the discharge port 57 is arranged at the bottom of the discharge section 563, and the negative pressure fan 53 is arranged on the transfer section 562. The dust generated in the front side grinding process and the back side grinding process are collected by the dust hopper 51 and the sealed chamber 52 respectively to prevent the dust from falling into another process. The dust is simultaneously sucked into the transfer section 562 through the first air inlet 54 and the second air inlet 55 and discharged from the discharge port 57. Since the equipment has a short stroke, one negative pressure fan 53 can be used to meet the dust collection needs, further reducing costs.

[0026] A double-sided sanding and polishing method, comprising: (1) Guide the installation, select the first sanding roller 22 and the second sanding roller 41 with appropriate meshes according to the required sanding length of the fabric to be processed, install and replace them, and pass the fabric through the transfer roller group 1, the front rough grinding device 2, the front fine grinding device 3, and the back friction device 4 in sequence; (2) Debugging the device, and driving the first adjusting component 23, the second adjusting component 32, and the third adjusting component 42 to move according to the required sanding length so as to change the contact area between the cloth and the first sanding roller 22, the sanding roller 31, and the second sanding roller 41 respectively; (3) The starting device drives the transfer roller group 1, the rubber roller 21, the first sand roller 22, the sanding roller 31, and the second sand roller 41 to rotate. The rubber roller 21 and the first sand roller 22 rotate at a differential speed and in opposite directions. The fabric passes between the rubber roller 21 and the first sand roller 22 and is transported upward. At the same time, the second sand roller 41 rubs the fabric under the action of the differential rotation. (4) The first front side sanding, the fabric passes through the transfer roller group 1 from bottom to top through the rubber roller 21 and the first sanding roller 22, the first sanding roller 22 rotates and performs the first sanding on one side of the fabric; (5) The second front side sanding, the cloth is transported horizontally through the sanding roller 31, and the sanding roller 31 is rotated to perform a second sanding on the position of the first sanding; (6) Back side sanding: the cloth is transported from bottom to top and passes through the second sand roller 41, and the second sand roller 41 rotates and sands the back side of the cloth.

[0027] The present application can rough grind and fine grind the front side of the cloth through the first sand roller 22 and the sanding roller 31, so that the rough surface formed on the use side of the cloth becomes looser under the action of the sanding roller 31, and the second sand roller 41 can be used to rough grind the non-use side to meet the use requirements. The cloth is input into the device from the bottom, and is transported upward to the front rough grinding device 2 through the transfer roller group 1, and then transported horizontally backward to the front fine grinding device 3, and finally continues to be transported upward to the back friction device 4. This transportation method can shorten the span of cloth transportation and reduce the volume of the equipment. At the same time, since the sanding machine is prone to generate a lot of dust during sanding, the front sanding process and the back sanding process are isolated from each other, so that the dust will not contaminate each other. The cloth can be sanded on both sides without turning over the cloth. The vertically arranged back friction device 4 will cause the dust to fall vertically when sanding the back side without remaining on the cloth. Compared with equipment with a larger span, the present application only needs to configure a set of dust collection devices 5 to meet the needs, further saving costs.

[0028] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of implementation of the present invention. That is, equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the specification should still fall within the scope covered by the patent of the present invention.

Claims

1. A double-sided sanding and polishing machine, characterized in that: It includes a transfer roller group, a front rough grinding device, a front fine grinding device, a back friction device and a dust collection device. The front rough grinding device and the front fine grinding device are arranged in sequence in the horizontal direction. The transfer roller group is vertically distributed at the front end of the front rough grinding device, receiving the spread fabric and conveying it vertically upward; The front rough grinding device comprises a rubber roller, a first sand roller and a first adjustment component which are arranged horizontally and relatively to each other, the rubber roller is in contact with the first sand roller, and the first adjustment component is arranged above the rubber roller and the first sand roller to adjust the contact area between the cloth and the first sand roller; The front fine grinding device includes a plurality of horizontally spaced sanding rollers and a second adjustment component arranged between two adjacent sanding rollers for adjusting the contact area between the cloth and the sanding rollers, and the sanding rollers and the sand rollers are located on the same side of the cloth; The reverse friction device includes a plurality of second emery rollers and a third adjustment component arranged between two adjacent second emery rollers to adjust the contact area between the cloth and the second emery rollers, the second emery rollers being located on the other side of the cloth and arranged vertically above the front fine grinding device; The dust collecting device comprises a dust hopper, a sealed chamber and a negative pressure fan. The dust hopper is arranged below the front rough grinding device and the front fine grinding device; the sealed chamber is sealed outside the reverse friction device; the negative pressure fan is respectively connected to the dust hopper and the sealed chamber.

2. A double-sided sanding and polishing machine according to claim 1, characterized in that: The dust collection device also includes a first air inlet, a second air inlet, a conveying bellows and a discharge port, the first air inlet is connected to the dust hopper; the second air inlet is connected to the sealed chamber; the conveying bellows is connected to the first air inlet and the second air inlet, and includes an air inlet section connected to the first air inlet and the second air inlet respectively, a transfer section connected to the air inlet section and extending vertically upward, and a discharge section connected to the transfer section and extending horizontally backward; the discharge port is arranged at the bottom of the discharge section, and the negative pressure fan is arranged on the transfer section.

3. A double-sided sanding and polishing machine according to claim 1, characterized in that: The first adjustment component includes a first adjustment roller, a first mounting block, a first slider and a first screw, wherein the first adjustment roller is arranged above the first sand roller; the first mounting blocks are arranged on both sides of the first adjustment roller, and are formed with a first sliding groove extending in a horizontal direction, and are also provided with a scale arranged along the extension direction of the first sliding groove; the first slider is arranged in the first sliding groove to move back and forth, and the end of the first adjustment roller is arranged on the first slider; the first screw is arranged along the extension direction of the first sliding groove, passes through the first mounting block, extends into the first sliding groove and is threadedly connected to the first slider.

4. A double-sided sanding and polishing machine according to claim 2, characterized in that: The first adjustment assembly also includes an auxiliary adjustment roller, which is arranged above the first emery roller opposite to the first adjustment roller. The first adjustment roller is located in front of the first emery roller, and the auxiliary adjustment roller is located behind the first emery roller.

5. The double-sided sanding and polishing machine according to claim 1, characterized in that: The second adjustment component includes a second adjustment roller, a guide rail, a second slider and a second screw; the second adjustment roller is arranged between two adjacent grinding rollers and above the grinding roller; the guide rail is arranged on both sides of the second adjustment roller in the vertical direction; the second slider can be raised and lowered on the guide rail, and the two ends of the second adjustment roller are respectively arranged on the second sliders on both sides and move up and down with them; the second screw passes through the second slider to control its lifting and lowering.

6. The double-sided sanding and polishing machine according to claim 1, characterized in that: The third adjusting assembly comprises a third adjusting roller and an electric push rod. The third adjusting roller is arranged between two adjacent second sand rollers. The electric push rod is arranged on both sides of the third adjusting roller to push the third adjusting roller to move back and forth in the horizontal direction.

7. The double-sided sanding and polishing machine according to claim 1, characterized in that: The grinding roller comprises a roller core and bristles formed on the surface of the roller core, and the material of the bristles is graphene.

8. The double-sided sanding and polishing machine according to claim 1, characterized in that: The mesh number of the first emery roller is 120-1200 meshes, and the mesh number of the second emery roller is 80-200 meshes.

9. A double-sided sanding and polishing method, characterized in that: A double-sided roughening and polishing method according to any one of claims 1 to 8, comprising: (1) Guide the installation, select the first and second sanding rollers with appropriate meshes according to the required sanding length of the fabric to be processed, install and replace them, and pass the fabric through the transfer roller group, the front rough grinding device, the front fine grinding device, and the back friction device in sequence; (2) Debugging the device, and driving the first adjusting component, the second adjusting component, and the third adjusting component to move according to the required sanding length to respectively change the contact area between the cloth and the first sanding roller, the sanding roller, and the second sanding roller; (3) A starting device drives the transfer roller group, the rubber roller, the first sanding roller, the grinding roller, and the second sanding roller to rotate; For the first front side sanding, the fabric passes through the rubber roller and the first sanding roller from bottom to top through the transfer roller group, and the first sanding roller rotates and performs the first sanding on one side of the fabric; (4) The second front side sanding, the fabric is transported horizontally through the sanding roller, and the sanding roller is rotated to sand the position of the first sanding for the second time; (5) Back side sanding: the fabric is transported from bottom to top and passes through the second sanding roller, which rotates and sands the back side of the fabric.

10. A double-sided roughening and polishing method according to claim 9, characterized in that: In the step (3), the rubber roller and the first emery roller rotate at a differential speed and in opposite directions. The cloth passes between the rubber roller and is transported upward while the second emery roller rubs the cloth under the action of the differential rotation.

Images