Method and device for sanding a suede leather

Abstract

The application discloses a sanding and polishing method for leather with a suede feeling, and the method comprises the following steps: placing the leather with a suede feeling in a polishing machine, wherein the polishing machine comprises a primary polishing mechanism, a secondary polishing mechanism, a fixed laminating pressure roller, a leather tensioner and a winding roller, and the leather with a suede feeling is arranged along the running direction of the primary polishing mechanism, the fixed laminating pressure roller, the leather tensioner, the secondary polishing mechanism and the winding roller; starting the polishing machine, so that the leather is subjected to sanding by the primary polishing mechanism of the polishing machine, the leather tension is adjusted by the leather tensioner, the leather is subjected to polishing by the secondary polishing mechanism, and finally, the leather is wound by the winding roller to obtain the sanding and polishing leather with a natural suede surface. The method can take into account the polishing effects of two sanding wheels, the suede on the surface of the leather can be formed into irregular shapes, the effect of a natural suede surface can be achieved, and the leather processing requirements can be met.

Description

Technical Field

[0001] This invention relates to the field of leather processing, specifically a method for polishing frosted velvet-textured leather. Background Technology

[0002] Leather is animal hide that has undergone physical and chemical processing, such as hair removal and tanning, to become deformed and less prone to decay. Leather is composed of naturally woven protein fibers in a three-dimensional space, and its surface has a special grain layer, giving it a natural grain and luster, and a comfortable feel.

[0003] There are many types of leather on the market, and suede is one of them. Currently, most suede leather is processed using a sanding wheel. When the sanding wheel sands the leather surface, it grinds and squeezes the leather, causing the surface to be subjected to comprehensive compression, resulting in the loss of the suede. This makes the suede feel unpleasant to the touch, reduces the user experience, and lowers the quality of the product.

[0004] Therefore, this invention proposes a polishing method that first polishes the leather with a grinding wheel, then tensions the leather with a tensioning machine, and finally polishes it with a brushing wheel. This method maintains the elasticity of the leather by adjusting the tension after squeezing it, while the fluffy and rough surface of the brushing wheel continuously polishes the leather surface, causing the nap on the leather surface to form an irregular shape, achieving a natural nap effect. Summary of the Invention

[0005] The purpose of this invention is to provide a method for polishing frosted velvet leather to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a frosted suede leather polishing device, wherein the polishing method of the polishing device includes:

[0007] Step 1: Place the skin-feel leather inside the sanding machine, which includes a primary sanding mechanism, a secondary sanding mechanism, a fixed surface-fitting roller, a leather tensioner, and a take-up roller. The skin-feel leather is installed along the travel direction of the primary sanding mechanism, the fixed surface-fitting roller, the leather tensioner, the secondary sanding mechanism, and the take-up roller.

[0008] Step 2: Start the sanding machine so that the leather is sanded by the first sanding mechanism, the leather tension is adjusted by the leather tension machine, the second sanding mechanism is sanded by the wire drawing wheel, and finally the leather is wound by the winding roller to obtain a natural suede-like matte leather.

[0009] Preferably, the polishing machine further comprises a frame, the primary polishing mechanism is mounted on the frame through the bottom support, the primary polishing mechanism comprises a polishing grinding wheel, a dust collecting bin and a polishing motor, the dust collecting bin is fixed on the upper side of the frame, an opening for the leather to pass through is arranged on the dust collecting bin, the polishing grinding wheel is located above the opening and is driven by the polishing motor, the end surface of the polishing grinding wheel is in close contact with the leather, the side of the leather away from the polishing grinding wheel is provided with a fixed surface pressing roller, and the fixed surface pressing roller is fixed on the dust collecting bin.

[0010] Preferably, the leather tensioning machine comprises a support frame, a side cover, a tensioning support, a negative pressure pump and a negative pressure adsorption plate, the support frame is fixed on the frame, and an arc-shaped cover is arranged on the side edge of the support frame; the tensioning support is mounted on the front side of the support frame, and the tensioning support comprises an angle steel base, an angle steel column and a tensioning guide roller, a through groove is arranged on the inner side of the angle steel base, and the rear end of the angle steel column passes through the through groove and is locked and fixed by bolts; the angle steel column comprises a column body and a V-shaped plate movably arranged at the front end of the column body through a pin shaft, and the upper side and the lower side of the V-shaped plate are both provided with the tensioning guide roller.

[0011] Preferably, the secondary polishing mechanism comprises an adjusting support, a guide rail and a polishing unit, the adjusting support is in L shape, the lower end of the adjusting support is fixed on the side of the support frame through bolts, the front end of the adjusting support is provided with an adjustable supporting arm, and the front end of the supporting arm is provided with a fan-shaped groove; the lower end of the guide rail is provided with a connecting piece, the connecting piece is arranged on the two sides of the fan-shaped groove, the lower end of the connecting piece is provided with a sliding column which extends into the fan-shaped groove and rolls, and the upper end of the connecting piece is provided with a pressing nut; the polishing unit is movable along the guide rail, and the polishing unit comprises a wire drawing polishing wheel and a motor for driving the wire drawing polishing wheel to rotate, wherein the wire drawing polishing wheel is close to the leather.

[0012] Preferably, the negative pressure pump is fixed on the angle steel base, the output side of the negative pressure pump is connected with the negative pressure adsorption plate through a hose, the negative pressure adsorption plate is vertically arranged and located between the two tensioning guide rollers, and the negative pressure adsorption plate is fixed on the V-shaped plate through an angle iron.

[0013] Preferably, the winding roller is mounted on the support frame and located on the inner side of the cover, the rear side of the winding roller is driven by the motor, and the leather passes through the fixed surface pressing roller, the tensioning guide roller and is wound on the winding roller.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] The method of the present application comprises the steps of polishing by a grinding wheel, tensioning the leather by a tensioning machine and polishing by a wire drawing wheel, the leather is kept elastic by tension adjustment after being extruded, the surface of the leather is continuously ground by the wire drawing wheel to make the nap on the surface of the leather form irregular shapes, the effect of natural nap is achieved, the polishing effect of two grinding wheels is considered, the leather processing requirements are met, and the surface of the polished leather is comfortable. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 For the method flowchart of the present application;

[0017] Figure 2 For the structural schematic diagram of the polishing equipment of the present application;

[0018] Figure 3 For the partial structural schematic diagram of the polishing equipment of the present application;

[0019] Figure 4 For the structural schematic diagram of the leather tension machine, secondary polishing mechanism and winding roller of the present application Figure 1 ;

[0020] Figure 5 For the structural schematic diagram of the leather tension machine, secondary polishing mechanism and winding roller of the present application Figure 2 ;

[0021] Figure 6 For the structural schematic diagram of the wire drawing polishing wheel of the present application.

[0022] In the figure: 1, frame; 2, bottom support; 3, polishing grinding wheel; 4, scrap collecting bin; 5, fixed veneer pressing roller; 6, support frame; 7, side machine cover; 8, angle steel seat; 9, angle steel column; 10, tension guide roller; 11, adjusting support; 12, guide rail; 13, support arm; 14, connecting piece; 15, wire drawing polishing wheel; 16, negative pressure pump; 17, negative pressure adsorption plate; 18, winding roller; 19, movable roller. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms “vertical”, “upper”, “lower”, “horizontal” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0025] In the description of the present application, it is also necessary to explain that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Please refer to Figures 1-6 The present application provides a technical solution: a sanding and suede leather polishing device, and a polishing method of the polishing device.

[0027] Step 1: The skin-sensing leather is arranged in the polishing machine, wherein the polishing machine comprises a primary polishing mechanism, a secondary polishing mechanism, a fixed surface-attached pressure roller 5, a leather tensioning machine and a winding roller 18, and the skin-sensing leather is arranged along the direction of travel of the primary polishing mechanism, the fixed surface-attached pressure roller 5, the leather tensioning machine, the secondary polishing mechanism and the winding roller 18.

[0028] Step 2: Start the polishing machine to make the leather pass through the primary polishing mechanism of the polishing machine for grinding wheel polishing, pass through the leather tensioning machine to adjust the leather tension, pass through the secondary polishing mechanism for wire drawing wheel polishing, and finally pass through the winding roller 18 to obtain a natural suede sanding and suede leather.

[0029] In this embodiment, the polishing machine further comprises a machine frame 1, and the primary polishing mechanism is arranged on the machine frame 1 through a bottom support 2. The primary polishing mechanism comprises a polishing grinding wheel 3, a dust collecting bin 4 and a polishing motor. The dust collecting bin 4 is fixed on the upper side of the machine frame 1, and an opening for the leather to pass through is arranged on the dust collecting bin 4. The polishing grinding wheel 3 is located directly above the opening and is driven by the polishing motor. The end surface of the polishing grinding wheel 3 is in close contact with the leather, and the side of the leather away from the polishing grinding wheel 3 is provided with a fixed surface-attached pressure roller 5 which is fixed on the dust collecting bin 4.

[0030] In this embodiment, the leather tensioning machine comprises a support frame 6, a side cover 7, a tensioning support, a negative pressure pump 16 and a negative pressure suction plate 17. The support frame 6 is fixed on the machine frame 1, and an arc-shaped side cover 7 is arranged on the side edge of the support frame 6. The tensioning support is arranged on the front side of the support frame 6 and comprises an angle steel seat 8, an angle steel column 9 and a tensioning guide roller 10. The inner side of the angle steel seat 8 is provided with a through slot, and the rear end of the angle steel column 9 passes through the through slot and is fixed by bolts.

[0031] In this embodiment, the support frame 6 is further provided with a movable roller 19 which is installed by a tension spring and a pressing arm. The leather passes through the fixed surface-attached pressure roller 5, the movable roller 19 and the tensioning guide roller 10 and is wound on the winding roller 18.

[0032] In the embodiment, the angle steel column 9 comprises a column body and a V-shaped plate which is movably connected to the front end of the column body by a pin shaft, wherein the upper side and the lower side of the V-shaped plate are respectively provided with a tension guide roller 10.

[0033] In the embodiment, the secondary polishing mechanism comprises an adjusting support 11, a guide rail 12 and a polishing unit, wherein the adjusting support 11 is L-shaped and its lower end is fixed to the side of the support frame 6 by a bolt, the front end of the adjusting support 11 is provided with an adjustable support arm 13, and the front end of the support arm 13 is provided with a fan-shaped groove; the lower end of the guide rail 12 is provided with a connecting plate 14, the connecting plate 14 is arranged on both sides of the fan-shaped groove, the lower end of the connecting plate 14 is provided with a sliding column which extends into the fan-shaped groove and rolls, and the upper end of the connecting plate 14 is provided with a compression nut; the polishing unit is movable along the guide rail, and the polishing unit comprises a wire drawing polishing wheel 15 and a motor which drives the wire drawing polishing wheel 15 to rotate, wherein the wire drawing polishing wheel 15 can abut against the leather.

[0034] In the embodiment, the negative pressure pump 16 is fixed to the angle steel base 8, the output side of the negative pressure pump 16 is connected to a negative pressure suction plate 17 through a hose, the negative pressure suction plate 17 is vertically arranged and located between the two tension guide rollers 10, and the negative pressure suction plate 17 is fixed to the V-shaped plate by an angle iron.

[0035] In the embodiment, the winding roller 18 is arranged on the support frame 6 and located inside the side cover 7, the rear side of the winding roller 18 is driven by a motor, and the leather passes through the fixed facing press roller 5, the tension guide roller 10 and is wound on the winding roller 18.

[0036] In the embodiment, the method of the present application comprises the steps of grinding by a grinding wheel, tensioning the leather by a tensioning machine and polishing by a wire drawing wheel, wherein after the leather is extruded by the fixed facing press roller 5 and the grinding wheel 3, the tension of the leather is adjusted to keep the elasticity of the leather, and the rough surface of the leather is continuously ground by the wire drawing wheel to make the nap of the leather surface irregular, thereby achieving the effect of natural nap. The method takes into account the polishing effects of the two grinding wheels, can meet the requirements of leather processing, and the polished leather surface is comfortable.

[0037] It is worth noting that the polishing machine is controlled by a total control button, and since the device matched with the control button is a commonly used device, the electrical connection relationship and the specific circuit structure are not described here.

[0038] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for buffing a suede leather, characterized in that, Including frame (1), the frame (1) is equipped with a primary polishing mechanism on the bottom support (2), the primary polishing mechanism includes polishing grinding wheel (3), dust collection bin (4) and polishing motor, wherein the dust collection bin (4) is fixed on the upper side of the frame (1), the dust collection bin (4) is provided with an opening for the leather to pass through; The polishing grinding wheel (3) is located above the opening and is driven by the polishing motor, the polishing grinding wheel (3) end face is in close contact with the leather, the side of the leather away from the polishing grinding wheel (3) is provided with a fixed surface pressing roller (5), and the fixed surface pressing roller (5) is fixed on the dust collection bin (4); Leather tensioning machine, including support frame (6), side cover (7), tensioning support, negative pressure pump (16) and negative pressure adsorption plate (17), wherein the support frame (6) is fixed on the frame (1), the support frame (6) side is provided with an arc-shaped side cover (7); The tensioning support is installed on the front side of the support frame (6), the tensioning support includes angle steel seat (8), angle steel column (9) and tensioning guide roller (10), wherein the inner side of the angle steel seat (8) is provided with a through slot, the rear end of the angle steel column (9) passes through the through slot and is locked and fixed by bolts; The angle steel column (9) includes a column body and a V-shaped plate movably connected to the front end of the column body by a pin shaft, wherein the upper side and the lower side of the V-shaped plate are both provided with a tensioning guide roller (10); Secondary polishing mechanism, including adjusting support (11), guide rail (12) and polishing unit, wherein the adjusting support (11) is L-shaped and its lower end is fixed on the side of the support frame (6) by bolts, the adjusting support (11) is provided with an adjustable support arm (13) at the front end, and the front end of the support arm (13) is provided with a fan-shaped groove; The lower end of the guide rail (12) is provided with a connecting piece (14), the connecting piece (14) is arranged on both sides of the fan-shaped groove, the lower end of the connecting piece (14) is provided with a sliding column extending into the fan-shaped groove and rolling, and the upper end of the connecting piece (14) is provided with a pressing nut; The polishing unit can move along the guide rail, and the polishing unit includes a wire drawing polishing wheel (15) and a motor for driving the wire drawing polishing wheel (15) to operate, wherein the wire drawing polishing wheel (15) can abut against the leather; The negative pressure pump (16) is fixed on the angle steel seat (8), the output side of the negative pressure pump (16) is connected to the negative pressure adsorption plate (17) through a hose, the negative pressure adsorption plate (17) is vertically arranged and located between the two tensioning guide rollers (10), and the negative pressure adsorption plate (17) is fixed on the V-shaped plate by an angle iron.

2. The buffing device according to claim 1, wherein: The support frame (6) is provided with a winding roller (18), the winding roller (18) is located inside the side cover (7), the rear side of the winding roller (18) is driven by a motor, and the leather passes through the fixed surface pressing roller (5), the tensioning guide roller (10) and is wound on the winding roller (18).

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