Grinding equipment for leather case production
By designing a leather grinding device for leather case production with a conveyor component and a grinding component, the problem that existing leather grinding machines can only grind on one side has been solved, realizing efficient operation of double-sided and single-sided grinding and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN ADONIS LEATHER CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-26
AI Technical Summary
Existing leather polishing machines can only polish one side, which is cumbersome to operate and results in low production efficiency.
A leather polishing device for leather case production was designed, comprising a conveying component, a polishing component, and a collecting component. Double-sided polishing is achieved by having a first polishing roller and a second polishing roller respectively abut against the two sides of the leather. Single-sided polishing is achieved by having a lifting seat move the second polishing roller closer to or away from the first polishing roller.
It enables double-sided and single-sided leather sanding operations, improving production efficiency and making it easy to use.
Smart Images

Figure CN224280315U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leather processing technology, and in particular to a leather grinding device for leather production. Background Technology
[0002] In the production of leather cases, it is often necessary to trim the leather, such as adjusting the thickness and smoothing the surface. Currently, leather is generally sanded and polished using a leather sanding machine. However, existing leather sanding machines can only sand one side of the leather. When sanding both sides, one side must be sanded first, and then the leather must be manually turned over before sanding the other side. This operation is cumbersome, time-consuming, and has low production efficiency. Utility Model Content
[0003] Therefore, it is necessary to provide an efficient leather grinding device for leather case production to address the above problems.
[0004] A leather polishing device for producing leather cases includes a support, a conveying assembly, a frame, and a polishing assembly. The conveying assembly includes a conveying roller and a pressure roller, both of which are rotatably connected to the support. The frame is mounted on one side of the support. The polishing assembly includes a fixed seat, a first polishing roller, a lifting seat, and a second polishing roller. The fixed seat is mounted on the frame. The first polishing roller is rotatably connected to the fixed seat. The lifting seat is slidably mounted on the fixed seat. The second polishing roller is rotatably connected to the lifting seat. The first polishing roller and the second polishing roller are respectively used to abut against the two sides of the leather.
[0005] In one embodiment, the conveying assembly further includes a support, a slider, and an elastic element. The support is mounted on the bracket, and the conveying roller is rotatably connected to the support. The slider is slidably disposed on the support, and the pressure roller is rotatably connected to the slider. One end of the elastic element abuts against the slider, and the other end abuts against the support. There are two of each of the support, the slider, and the elastic element, and they correspond one-to-one.
[0006] In one embodiment, the conveying assembly further includes a feeding roller, a driving wheel, a driven wheel, a timing belt, and a feeding power element. The feeding roller is pivotally connected to the bracket. The driving wheel is mounted on one end of the feeding roller. The driven wheel is mounted on one end of the conveying roller. One end of the timing belt is connected to the driving wheel, and the other end is connected to the driven wheel. The feeding power element is mounted on the bracket and is used to drive the driving wheel to rotate.
[0007] In one embodiment, the skin smoothing assembly further includes a first skin smoothing power element, a rotating wheel, and a conveyor belt. The first skin smoothing power element is installed inside the frame, the rotating wheel is installed on the first skin smoothing roller, and one end of the conveyor belt is connected to the output end of the first skin smoothing power element, while the other end is connected to the rotating wheel.
[0008] In one embodiment, the abrasion assembly further includes a second abrasion power element and a lifting power element. The second abrasion power element is installed on the lifting seat and is used to drive the second abrasion roller to rotate. The lifting power element is installed on the fixed seat and is used to drive the lifting seat to rise and fall.
[0009] In one embodiment, a collection component is further included, the collection component including a collection box and a cover plate, the collection box being mounted on the fixed base, and one end of the cover plate being pivotally connected to one end of the collection box; one end of the collection box is provided with a discharge hole and a waste discharge hole, the waste discharge hole being located below the discharge hole.
[0010] In one embodiment, the bottom of the collection box is angled downwards.
[0011] In one embodiment, the collection assembly further includes a suction tube, one end of which is connected to the cover plate and the other end of which is connected to a vacuum cleaner.
[0012] In one embodiment, the fixing base includes two side plates and two crossbars, with each end of the crossbar connected to one of the two side plates.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention relates to a leather polishing device for leather case production. A first polishing roller and a second polishing roller abut against both sides of the leather, achieving double-sided polishing. A lifting seat moves the second polishing roller closer to or further away from the first polishing roller, allowing either the first or second roller to abut against one side of the leather, thus achieving single-sided polishing. This leather polishing device for leather case production can perform both single-sided and double-sided polishing, is convenient to use, and improves efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a leather grinding device for producing leather cases, as shown in one embodiment of the present invention;
[0016] Figure 2 for Figure 1 Enlarged view of center circle A;
[0017] Figure 3 for Figure 1Cross-sectional view of the medium-smoothing component and the collection component.
[0018] The meanings of the numbers in the attached diagram are as follows:
[0019] 100. Grinding device for leather case production;
[0020] 10. Support frame; 20. Conveying assembly; 21. Conveying roller; 22. Pressure roller; 23. Support; 24. Slider; 25. Elastic element; 26. Feeding roller; 27. Drive wheel; 28. Driven wheel; 29. Feeding power element; 30. Frame; 40. Grinding assembly; 41. Fixed seat; 411. Side plate; 412. Crossbar; 42. First grinding roller; 43. Lifting seat; 44. Second grinding roller; 45. First grinding power element; 46. Rotary wheel; 47. Conveyor belt; 48. Second grinding power element; 49. Lifting power element; 50. Collection assembly; 51. Collection box; 511. Discharge hole; 512. Waste discharge hole; 52. Cover plate; 53. Dust suction pipe. Detailed Implementation
[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0026] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0027] Please refer to Figures 1 to 3A leather polishing device 100 for producing leather cases according to one embodiment of the utility model includes a support 10, a conveying assembly 20, a frame 30, and a polishing assembly 40. The conveying assembly 20 includes a conveying roller 21 and a pressure roller 22, both of which are rotatably connected to the support 10. The frame 30 is installed on one side of the support 10. The polishing assembly 40 includes a fixed seat 41, a first polishing roller 42, a lifting seat 43, and a second polishing roller 44. The fixed seat 41 is installed on the frame 30. The first polishing roller 42 is rotatably connected to the fixed seat 41. The lifting seat 43 is slidably disposed on the fixed seat 41. The second polishing roller 44 is rotatably connected to the lifting seat 43. The first polishing roller 42 and the second polishing roller 44 are respectively used to abut against the two sides of the leather. The leather polishing device 100 for leather case production achieves double-sided polishing by having the first polishing roller 42 and the second polishing roller 44 respectively abut against the two sides of the leather; and by having the lifting seat 43 drive the second polishing roller 44 to move closer to or away from the first polishing roller 42, so that the first polishing roller 42 abuts against one side of the leather, or the second polishing roller 44 abuts against one side of the leather, thereby achieving single-sided polishing.
[0028] like Figure 1 and Figure 2 As shown, in this embodiment, the conveying assembly 20 includes a conveying roller 21 and a pressure roller 22, both of which are rotatably connected to the bracket 10. The conveying roller 21 and the pressure roller 22 cooperate to convey leather material, and the pressure roller 22 presses the leather material to ensure that the leather material is flattened. Optionally, the conveying assembly 20 also includes a support 23, a slider 24, and an elastic element 25. The support 23 is installed on the bracket 10, and the conveying roller 21 is rotatably connected to the support 23. The slider 24 is slidably disposed on the support 23, and the pressure roller 22 is rotatably connected to the slider 24. One end of the elastic element 25 abuts against the slider 24, and the other end abuts against the support 23. There are two supports 23, two sliders 24, and two elastic elements 25, and they correspond one-to-one. Under the action of the elastic element 25, the slider 24 slides on the support 23, so that the pressure roller 22 is in close contact with the leather material, and it is suitable for leather materials of different thicknesses.
[0029] Furthermore, the conveying assembly 20 also includes a feeding roller 26, a driving wheel 27, a driven wheel 28, a synchronous belt (not shown), and a feeding power element 29. The feeding roller 26 is pivotally connected to the bracket 10. The driving wheel 27 is mounted on one end of the feeding roller 26, and the driven wheel 28 is mounted on one end of the conveying roller 21. One end of the synchronous belt is connected to the driving wheel 27, and the other end is connected to the driven wheel 28. The feeding power element 29 is mounted on the bracket 10 and is used to drive the driving wheel 27 to rotate. The driving wheel 27 rotates through the feeding power element 29, which in turn drives the feeding roller 26 to rotate. Moreover, the driven wheel 28 rotates through the synchronous belt, which in turn drives the conveying roller 21 to rotate synchronously.
[0030] like Figure 1 and Figure 3 As shown, the frame 30 is mounted on one side of the support 10. The leather smoothing assembly 40 includes a fixed base 41, a first smoothing roller 42, a lifting base 43, and a second smoothing roller 44. The fixed base 41 is mounted on the frame 30. Optionally, the fixed base 41 includes two side plates 411 and two crossbars 412. The side plates 411 are mounted on the frame 30, and the two ends of the crossbars 412 are respectively connected to the two side plates 411. Further, the side plates 411 are in a reverse C-shape. The first smoothing roller 42 is rotatably connected to the fixed base 41, the lifting base 43 is slidably mounted on the fixed base 41, and the second smoothing roller 44 is rotatably connected to the lifting base 43. The first smoothing roller 42 and the second smoothing roller 44 are respectively used to abut against the two sides of the leather to achieve smoothing. Optionally, the two ends of the first abrasive roller 42 are rotatably connected to two side plates 411 respectively, and the lifting seat 43 is slidably disposed on the side plate 411; further, there are two lifting seats 43, and the two ends of the second abrasive roller 44 are rotatably connected to the two lifting seats 43 respectively.
[0031] In one embodiment, the skin smoothing assembly 40 further includes a first skin smoothing power element 45, a rotating wheel 46, and a conveyor belt 47. The first skin smoothing power element 45 is installed inside the frame 30, the rotating wheel 46 is installed on the first skin smoothing roller 42, one end of the conveyor belt 47 is connected to the output end of the first skin smoothing power element 45, and the other end is connected to the rotating wheel 46. The first skin smoothing power element 45 drives the rotating wheel 46 to rotate through the conveyor belt 47, thereby driving the first skin smoothing roller 42 to rotate.
[0032] The abrasion assembly 40 further includes a second abrasion power element 48 and a lifting power element 49. The second abrasion power element 48 is installed on the lifting seat 43 and is used to drive the second abrasion roller 44 to rotate. The lifting power element 49 is installed on the fixed seat 41 and is used to drive the lifting seat 43 to rise and fall. Optionally, there are two lifting power elements 49, and they correspond one-to-one with the lifting seat 43.
[0033] like Figure 3 As shown, the leather grinding device 100 for leather case production also includes a collection component 50, which includes a collection box 51 and a cover plate 52. The collection box 51 is installed on the fixed base 41, and one end of the cover plate 52 is pivotally connected to one end of the collection box 51. One end of the collection box 51 is provided with a discharge hole 511 and a waste discharge hole 512. The waste discharge hole 512 is located below the discharge hole 511. The ground leather passes through the discharge hole 511, and the waste discharge hole 512 is used to discharge waste debris. Optionally, the bottom of the collection box 51 is inclined downward to collect waste debris. In one embodiment, the collection component 50 also includes a suction pipe 53. One end of the suction pipe 53 is connected to the cover plate 52, and the other end is connected to a vacuum cleaner. The vacuum cleaner sucks away the waste debris, and larger waste debris is discharged through the collection box 51.
[0034] In use, the leather material is sequentially conveyed to the first polishing roller 42 or the second polishing roller 44 via the feeding roller 26 and the conveying roller 21. Under the action of the elastic element 25, the pressure roller 22 presses the leather material tightly. When polishing one side, the first polishing roller 42 abuts against one side of the leather, or the second polishing roller 44 abuts against one side of the leather. When polishing both sides, the lifting power element 49 drives the lifting seat 43 to rise, thereby driving the second polishing roller 44 to approach the first polishing roller 42, ensuring that the first polishing roller 42 and the second polishing roller 44 abut against the two sides of the leather respectively.
[0035] The leather polishing device 100 for leather case production of this utility model achieves double-sided polishing by having a first polishing roller 42 and a second polishing roller 44 respectively abut against the two sides of the leather; by using a lifting seat 43 to move the second polishing roller 44 closer to or away from the first polishing roller 42, the first polishing roller 42 abuts against one side of the leather, or the second polishing roller 44 abuts against one side of the leather, achieving single-sided polishing; this leather polishing device 100 for leather case production can perform both single-sided and double-sided polishing, is convenient to use, and improves efficiency.
[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0037] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A leather grinding device for producing leather cases, characterized in that, The device includes a support frame, a conveying assembly, a frame, and a leather-grinding assembly. The conveying assembly includes a conveying roller and a pressure roller, both of which are rotatably connected to the support frame. The frame is mounted on one side of the support frame. The leather-grinding assembly includes a fixed base, a first leather-grinding roller, a lifting base, and a second leather-grinding roller. The fixed base is mounted on the frame. The first leather-grinding roller is rotatably connected to the fixed base. The lifting base is slidably mounted on the fixed base. The second leather-grinding roller is rotatably connected to the lifting base. The first leather-grinding roller and the second leather-grinding roller are respectively used to abut against the two sides of the leather.
2. The leather grinding device for producing leather cases according to claim 1, characterized in that, The conveying assembly further includes a support, a slider, and an elastic element. The support is mounted on the bracket, and the conveying roller is rotatably connected to the support. The slider is slidably disposed on the support, and the pressure roller is rotatably connected to the slider. One end of the elastic element abuts against the slider, and the other end abuts against the support. There are two of each of the support, the slider, and the elastic element, and they correspond one-to-one.
3. The leather grinding device for producing leather cases according to claim 1, characterized in that, The conveying assembly further includes a feeding roller, a driving wheel, a driven wheel, a timing belt, and a feeding power element. The feeding roller is pivotally connected to the bracket. The driving wheel is mounted on one end of the feeding roller, and the driven wheel is mounted on one end of the conveying roller. One end of the timing belt is connected to the driving wheel, and the other end is connected to the driven wheel. The feeding power element is mounted on the bracket and is used to drive the driving wheel to rotate.
4. The leather grinding device for producing leather cases according to claim 1, characterized in that, The skin-polishing assembly also includes a first skin-polishing power element, a rotating wheel, and a conveyor belt. The first skin-polishing power element is installed inside the frame, the rotating wheel is installed on the first skin-polishing roller, and one end of the conveyor belt is connected to the output end of the first skin-polishing power element, while the other end is connected to the rotating wheel.
5. The leather grinding device for producing leather cases according to claim 4, characterized in that, The abrasion assembly further includes a second abrasion power element and a lifting power element. The second abrasion power element is installed on the lifting seat and is used to drive the second abrasion roller to rotate. The lifting power element is installed on the fixed seat and is used to drive the lifting seat to rise and fall.
6. The leather grinding device for producing leather cases according to claim 1, characterized in that, It also includes a collection component, which includes a collection box and a cover plate. The collection box is installed on the fixed base, and one end of the cover plate is pivotally connected to one end of the collection box. One end of the collection box is provided with a discharge hole and a waste discharge hole, and the waste discharge hole is located below the discharge hole.
7. The leather grinding device for producing leather cases according to claim 6, characterized in that, The bottom of the collection box is tilted downwards.
8. The leather grinding device for producing leather cases according to claim 6, characterized in that, The collection assembly also includes a suction pipe, one end of which is connected to the cover plate and the other end of which is connected to a vacuum cleaner.
9. The leather grinding device for producing leather cases according to claim 1, characterized in that, The fixing base includes two side plates and two crossbars, and the two ends of the crossbar are respectively connected to the two side plates.