Flattening device for leather processing

Abstract

The utility model discloses a flattening device for leather processing, which comprises a base, a first support and a second support are respectively mounted on two sides of the base, an unwinding roller is rotatably mounted on the first support, a winding roller is rotatably mounted on the second support, and a worktable is mounted in the middle of the base. A first U-shaped frame and a second U-shaped frame are sequentially arranged on the base in the leather conveying direction, a sweeping and dust removing assembly is arranged on the first U-shaped frame, an air cylinder is arranged at the top of the second U-shaped frame, a first mounting frame is mounted at the end, extending into the second U-shaped frame, of a piston rod of the air cylinder, a driving assembly is arranged in the first mounting frame, and a first telescopic rod is mounted at the bottom of the driving assembly. A second mounting frame is mounted at the bottom of the first telescopic rod, a flattening roller is rotationally mounted in the second mounting frame, and flattening assemblies are arranged on the two sides of the second mounting frame. According to the leather flattening device, impurities on the surface of leather can be cleaned and removed, wrinkles on the leather can be flattened, the flattening effect of the leather is better, and the quality of the leather is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of leather processing, in particular to a flattening device for leather processing. Background Art

[0002] Leather is a denatured and non-perishable animal skin obtained through physical and chemical processes such as dehairing and tanning. Leather is composed of natural protein fibers tightly woven in three-dimensional space. Its surface has a special grain layer with natural grain and luster, and feels comfortable.

[0003] During the leather processing process, a flattening device is used to flatten the leather. The Chinese patent with the prior art authorization announcement number CN214612561U discloses a flattening device for leather processing, which drives the fixed plate and the flattening roller to rise and fall through a hydraulic cylinder. The fixed plate fixes the leather when it falls, and due to the setting of the buffer and the lifting rod, the damage to the leather during fixation is greatly reduced. The servo motor drives the lead screw to rotate through the forward and reverse rotation, thereby driving the flattening roller to reciprocate left and right to flatten the fixed leather. This device breaks through the traditional practice of installing a fixed clamp on the pressing platform to clamp the leather. The hydraulic cylinder is used to drive the flattening roller to rise and fall to drive the fixed plate to fall to fix the leather. The clamping is convenient and there is no need to do the tedious work of releasing the leather fixation later, which is convenient to use.

[0004] Although the above patent can flatten the fixed leather by the left and right reciprocating motion of the flattening roller, when there are impurities on the leather surface, if they are not cleaned, the impurities are easily pressed into the interior of the leather, affecting the quality of the leather after flattening. If there are wrinkles on the leather surface, the wrinkles will deepen during flattening, thereby damaging the leather, affecting the quality of the leather and reducing processing efficiency.

[0005] Therefore, the applicant proposes a leather processing flattening device to solve the above problems. Utility Model Content

[0006] In view of the deficiencies in the prior art, the present invention aims to provide a leather flattening device for leather processing.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0008] A flattening device for leather processing comprises a base, a first bracket and a second bracket are respectively installed on both sides of the base, a unwinding roller is rotatably installed on the first bracket, a winding roller is rotatably installed on the second bracket, a workbench is installed in the middle of the base, a first U-shaped frame and a second U-shaped frame are sequentially provided on the base along the leather conveying direction, the first U-shaped frame is provided with a cleaning and dust removal assembly, a cylinder is provided at the top of the second U-shaped frame, a first mounting frame is installed at one end of the piston rod of the cylinder extending to the second U-shaped frame, a driving assembly is provided in the first mounting frame, a first telescopic rod is installed at the bottom of the driving assembly, a second mounting frame is installed at the bottom of the first telescopic rod, a flattening roller is rotatably installed in the second mounting frame, and smoothing assemblies are provided on both sides of the second mounting frame.

[0009] Furthermore, the cleaning and dust removal assembly includes a brush roller rotatably installed in a first U-shaped frame and a dust hood located on one side of the brush roller. A dust box and a fan are installed on the top of the first U-shaped frame. One side of the dust box is connected to the dust hood through a connecting pipe, and the other side of the dust box is connected to the air inlet of the fan through a pipe.

[0010] Furthermore, the driving assembly includes a screw rod horizontally mounted in the first mounting frame, a threaded block is threadedly connected to the screw rod, a first telescopic rod is mounted at the bottom of the threaded block, and one end of the screw rod passes through the first mounting frame and is connected to the output end of the motor.

[0011] Furthermore, the smoothing assembly includes connecting plates installed on both sides of the upper part of the second mounting frame, a smoothing plate is rotatably installed on the other end of the connecting plate, a first connecting seat is provided on both sides of the lower part of the second mounting frame, a second connecting seat is provided on the smoothing plate, and a rotating block is rotatably installed on the first connecting seat and the second connecting seat, a second telescopic rod is connected between the two rotating blocks, and a second spring sleeved on the outer surface of the second telescopic rod is connected between the two rotating blocks.

[0012] Furthermore, a first spring sleeved on the outer surface of the first telescopic rod is connected between the threaded block and the second mounting bracket.

[0013] Furthermore, a filter is provided in the dust box.

[0014] Furthermore, a guide rod parallel to the screw rod is installed in the first mounting frame, and the guide rod passes through the threaded block and is slidably connected to the threaded block.

[0015] Furthermore, the lower portion of the smoothing plate is tilted in a direction away from the second mounting bracket.

[0016] Furthermore, support legs are provided on both sides of the bottom of the base.

[0017] Compared with the prior art, the present invention provides a leather processing flattening device, which has the following beneficial effects:

[0018] The utility model winds the leather onto the unwinding roller, then sequentially passes one end of the leather through the first U-shaped frame and the second U-shaped frame, supports the leather through a workbench, and then winds it onto the winding roller, winds the leather through the winding roller, cleans impurities on the surface of the leather through a cleaning and dust removal component, and removes and collects the cleaned impurities, thereby improving the quality of the leather after flattening; the first mounting frame, the flattening roller and the smoothing component are driven to rise and fall by an air cylinder; the wrinkles of the leather can be straightened and smoothed by the smoothing component; the flattening roller can be driven to make a reciprocating motion by the driving component to flatten the leather; and the wrinkles on the leather can be smoothed by the smoothing component, thereby achieving a better flattening effect on the leather, improving the flattening quality of the leather, and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is one of the front cross-sectional structural diagrams of the present utility model;

[0020] Figure 2 This is the second schematic diagram of the front cross-sectional structure of the present utility model;

[0021] Figure 3 This is a front view structural diagram of the present utility model;

[0022] Figure 4 This is a left-side structural diagram of the cleaning and dust removal assembly of the utility model;

[0023] Figure 5 This is a schematic diagram of the front cross-sectional structure of the drive assembly of the utility model;

[0024] Figure 6 yes Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 7 yes Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0026] Markings in the figure: 1. Base; 2. First bracket; 3. Second bracket; 4. Unwinding roller; 5. Rewinding roller; 6. Workbench; 7. First U-shaped frame; 8. Second U-shaped frame; 9. Cleaning and dust removal assembly; 91. Brush roller; 92. Dust hood; 93. Dust box; 94. Fan; 95. Connecting pipe; 96. Filter; 10. Cylinder; 11. First mounting bracket; 12. Drive assembly; 121. Screw; 122. Threaded block; 123. Motor; 124. Guide rod; 13. First telescopic rod; 14. Second mounting bracket; 15. Flattening roller; 16. Smoothing assembly; 161. Connecting plate; 162. Smoothing plate; 163. First connecting seat; 164. Second connecting seat; 165. Rotating block; 166. Second telescopic rod; 167. Second spring; 17. First spring; 18. Support leg. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0028] The standard parts used in this utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0029] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] In the description of the present invention, “plurality” means two or more, unless otherwise clearly defined.

[0032] The embodiment of the utility model provides a leather processing flattening device, referring to Figures 1 to 7 , including a base 1, on both sides of which a first bracket 2 and a second bracket 3 are respectively installed, a unwinding roller 4 is rotatably installed on the first bracket 2, and a winding roller 5 is rotatably installed on the second bracket 3. A workbench 6 is installed in the middle of the base 1 to support the leather. A first U-shaped frame 7 and a second U-shaped frame 8 are sequentially provided on the base 1 along the leather conveying direction, the first U-shaped frame 7 is provided with a cleaning and dust removal component 9, and a cylinder 10 is provided at the top of the second U-shaped frame 8, and a first mounting frame 11 is installed at one end of the piston rod of the cylinder 10 extending into the second U-shaped frame 8, a driving component 12 is provided in the first mounting frame 11, a first telescopic rod 13 is installed at the bottom of the driving component 12, and a second mounting frame 14 is installed at the bottom of the first telescopic rod 13, a flattening roller 15 is rotatably installed in the second mounting frame 14 to flatten the leather, and smoothing components 16 are provided on both sides of the second mounting frame 14.

[0033] Specifically, the winding roller 5 is driven by a servo motor; the top surface of the workbench 6 is flush with the top of the unwinding roller 4 and the winding roller 5; the first U-shaped frame 7 and the second U-shaped frame 8 are located between the unwinding roller 4 and the winding roller 5; the top of the first U-shaped frame 7 and the second U-shaped frame 8 is located above the workbench 6; the impurities on the surface of the leather are cleaned by the dust removal component 9, and the cleaned impurities are removed and collected, thereby improving the quality of the leather after flattening; 2-4 cylinders 10 can be provided, which are set according to actual conditions; the piston rod of the cylinder 10 is slidably connected to the top of the second U-shaped frame 8; the driving component 12 can drive the flattening roller 15 to perform reciprocating motion to flatten the leather; openings are provided at the bottom of the first mounting frame 11 and the second mounting frame 14; the smoothing component 16 can straighten and smooth the wrinkles of the leather, so that the flattening effect of the leather is better, the flattening quality of the leather is improved, and the processing efficiency is improved; the first mounting frame 11 and the second mounting frame 14 are arranged horizontally and vertically.

[0034] Among them, reference Figures 1 to 4 In this embodiment, support legs 18 are provided on both sides of the bottom of the base 1 to support the base 1.

[0035] Preferably, there are four supporting legs 18 , which are distributed at the four corners of the base 1 in a rectangular array.

[0036] Reference Figure 5In this embodiment, a first spring 17 sleeved on the outer surface of the first telescopic rod 13 is connected between the threaded block 122 and the second mounting bracket 14, so that when the flattening roller 15 rolls in contact to flatten the leather, the first spring 17 and the first telescopic rod 13 are subjected to the force of the cylinder 10 and buffer the force, thereby reducing the possibility of damage to the leather due to excessive pressure applied by the cylinder 10 on the flattening roller 15.

[0037] Reference Figure 4 In this embodiment, the cleaning and dust removal assembly 9 includes a brush roller 91 rotatably installed in the first U-shaped frame 7 and a dust collecting hood 92 located on one side of the brush roller 91. A dust collecting box 93 and a fan 94 are installed on the top of the first U-shaped frame 7. One side of the dust collecting box 93 is connected to the dust collecting hood 92 through a connecting pipe 95, and the other side of the dust collecting box 93 is connected to the air inlet of the fan 94 through a pipeline.

[0038] Specifically, impurities on the leather surface are cleaned by a brush roller 91. The brush roller 91 is located above the leather surface. One side of the brush roller 91 passes through the first U-shaped frame 7 and is connected to the output end of the servo motor, which is convenient for driving the brush roller 91; the dust collecting hood 92 is located on the side of the first U-shaped frame 7 close to the second U-shaped frame 8, which is convenient for absorbing the cleaned impurities; the impurities are collected by the dust collecting box 93.

[0039] Among them, reference Figure 4 In this embodiment, a filter screen 96 is provided in the dust box 93 to block impurities and prevent them from being directly discharged into the working environment and affecting the health of the workers.

[0040] Reference Figure 1 and Figure 5 In this embodiment, the driving assembly 12 includes a screw rod 121 horizontally rotatably installed in the first mounting frame 11, and a threaded block 122 is threadedly connected to the screw rod 121. A first telescopic rod 13 is installed at the bottom of the threaded block 122. One end of the screw rod 121 passes through the first mounting frame 11 and is connected to the output end of the motor 123.

[0041] Specifically, the screw rod 121 is preferably a reciprocating screw rod, which is a prior art and will not be described in detail here.

[0042] Among them, reference Figure 5 In this embodiment, a guide rod 124 parallel to the screw rod 121 is installed in the first mounting frame 11, so that the movement of the threaded block 122 is more stable. The guide rod 124 passes through the threaded block 122 and is slidably connected to the threaded block 122.

[0043] Specifically, the motor 123 is started, the motor 123 drives the screw rod 121 to rotate, the screw rod 121 drives the threaded block 122 to move, and thus drives the first telescopic rod 13 and the second mounting bracket 14 to move.

[0044] Reference Figure 6 and Figure 7 In this embodiment, the smoothing assembly 16 includes connecting plates 161 installed on both sides of the upper part of the second mounting frame 14, and a smoothing plate 162 is rotatably installed on the other end of the connecting plate 161. First connecting seats 163 are provided on both sides of the lower part of the second mounting frame 14, and a second connecting seat 164 is provided on the smoothing plate 162. A rotating block 165 is rotatably installed on both the first connecting seat 163 and the second connecting seat 164. A second telescopic rod 166 is connected between the two rotating blocks 165, and a second spring 167 sleeved on the outer surface of the second telescopic rod 166 is connected between the two rotating blocks 165.

[0045] Among them, reference Figure 6 and Figure 7 In this embodiment, the lower portion of the smoothing plate 162 is tilted away from the second mounting bracket 14 .

[0046] Specifically, the connecting plate 161 is arranged horizontally; the bottom of the smoothing plate 162 is arc-shaped to avoid damage to the leather; a second connecting seat 164 is provided in the middle of the smoothing plate 162; the bottom of the smoothing plate 162 is located below the bottom of the flattening roller 15.

[0047] When the second mounting frame 14 descends, the smoothing plate 162 first contacts the leather surface. When the second mounting frame 14 continues to descend, the bottom of the smoothing plate 162 pulls the leather toward both sides to straighten the leather wrinkles between the smoothing plates 162. If the leather wrinkles are completely straightened, the second mounting frame 14 continues to descend, and the bottom of the smoothing plate 162 will slide against the leather surface and smooth the slid portion until the flattening roller 15 contacts the leather surface. During the reciprocating motion of the flattening roller 15, the smoothing plate 162 also reciprocates. After the smoothing plate 162 smoothes the leather, the flattening roller 15 following it can immediately flatten the leather. Because the leather is wound on the unwinding roller 4 and the winding roller 5, the unwinding roller 4 and the winding roller 5 will exert tension on both ends of the leather. The smoothing plate 162 will not cause the leather to regenerate wrinkles during the reciprocating motion.

[0048] Working principle: When in use, the leather is wound on the unwinding roller 4, and one end of the leather is passed through the first U-shaped frame 7 and the second U-shaped frame 8 in sequence, and the leather is supported by the workbench 6, and then wound on the winding roller 5. The leather is wound by the winding roller 5, and the impurities on the surface of the leather are cleaned by the rotation of the brush roller 91. At the same time, the fan 94 is started, and the cleaned impurities are absorbed by the dust collecting cover 92, and enter the dust collecting box 93 through the connecting pipe 95 for collection. The impurities are filtered through the filter screen 96, and the filtered air is discharged through the fan 94, providing a good working environment and ensuring the health of the staff. At the same time, the cylinder 10 drives the first mounting frame 11 , the flattening roller 15 and the smoothing assembly 16 descend. During the descent, the bottom of the smoothing plate 162 pulls the leather toward both sides to straighten the leather wrinkles between the smoothing plates 162 until the flattening roller 15 contacts the leather surface, and the motor 123 is started. The motor 123 drives the screw rod 121 to rotate, and the screw rod 121 drives the threaded block 122 to move, thereby driving the first telescopic rod 13 and the second mounting bracket 14 to move, so that the flattening roller 15 can reciprocate, and the smoothing plate 162 also reciprocates. After the smoothing plate 162 smoothes the leather, the flattening roller 15 following it can immediately flatten the leather, so that the leather flattening effect is better, the leather flattening quality is improved, and the processing efficiency is improved.

[0049] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. A leather processing flattening device, comprising a base (1), characterized in that: A first bracket (2) and a second bracket (3) are respectively installed on both sides of the base (1); a reeling roller (4) is rotatably installed on the first bracket (2); a reeling roller (5) is rotatably installed on the second bracket (3); a workbench (6) is installed in the middle of the base (1); a first U-shaped frame (7) and a second U-shaped frame (8) are sequentially provided on the base (1) along the leather conveying direction; a cleaning and dust removal component (9) is provided on the first U-shaped frame (7); and a cylinder is provided on the top of the second U-shaped frame (8). (10), a piston rod of the cylinder (10) extends to one end of the second U-shaped frame (8) and is installed with a first mounting frame (11), a driving component (12) is provided in the first mounting frame (11), a first telescopic rod (13) is installed at the bottom of the driving component (12), a second mounting frame (14) is installed at the bottom of the first telescopic rod (13), a flattening roller (15) is rotatably installed in the second mounting frame (14), and smoothing components (16) are provided on both sides of the second mounting frame (14).

2. The leather processing flattening device according to claim 1, characterized in that: The cleaning and dust removal assembly (9) comprises a brush roller (91) rotatably mounted in a first U-shaped frame (7) and a dust collecting hood (92) located on one side of the brush roller (91); a dust collecting box (93) and a fan (94) are mounted on the top of the first U-shaped frame (7); one side of the dust collecting box (93) is connected to the dust collecting hood (92) through a connecting pipe (95); and the other side of the dust collecting box (93) is connected to the air inlet of the fan (94) through a pipeline.

3. The leather processing flattening device according to claim 1, characterized in that: The driving assembly (12) comprises a screw rod (121) which is horizontally rotatably mounted in a first mounting frame (11); a threaded block (122) is threadedly connected to the screw rod (121); a first telescopic rod (13) is mounted at the bottom of the threaded block (122); and one end of the screw rod (121) passes through the first mounting frame (11) and is connected to the output end of the motor (123).

4. The leather processing flattening device according to claim 1, characterized in that: The smoothing assembly (16) includes a connecting plate (161) installed on both sides of the upper part of the second mounting frame (14), a smoothing plate (162) is rotatably installed on the other end of the connecting plate (161), a first connecting seat (163) is provided on both sides of the lower part of the second mounting frame (14), a second connecting seat (164) is provided on the smoothing plate (162), a rotating block (165) is rotatably installed on the first connecting seat (163) and the second connecting seat (164), a second telescopic rod (166) is connected between the two rotating blocks (165), and a second spring (167) sleeved on the outer surface of the second telescopic rod (166) is connected between the two rotating blocks (165).

5. The leather processing flattening device according to claim 3, characterized in that: A first spring (17) sleeved on the outer surface of the first telescopic rod (13) is connected between the threaded block (122) and the second mounting frame (14).

6. The leather processing pressing device according to claim 2, characterized in that: A filter screen (96) is provided in the dust collecting box (93).

7. The leather processing pressing device according to claim 3, characterized in that: A guide rod (124) parallel to the screw rod (121) is installed in the first mounting frame (11); the guide rod (124) passes through the threaded block (122) and is slidably connected to the threaded block (122).

8. The leather processing pressing device according to claim 4, characterized in that: The lower portion of the smoothing plate (162) is tilted in a direction away from the second mounting frame (14).

9. The leather processing pressing device according to claim 1, characterized in that: Support legs (18) are provided on both sides of the bottom of the base (1).

Images