Round strip twisting machine for leather decorative strip
By designing an adjustment mechanism and a motor-driven rounding machine, the problem of insufficient adaptability of existing leather polishing devices has been solved. It enables effective positioning and arc-shaped polishing of leather strips of different widths and thicknesses, improving the adaptability and aesthetics of polishing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIWU MINQIN NEW MATERIALS CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-28
AI Technical Summary
Existing leather polishing equipment is difficult to adapt to leathers of different widths and thicknesses, resulting in the need for frequent equipment changes and affecting polishing adaptability.
A rounding machine for leather decorative strips was designed. The distance between the first and second polishing parts is adjusted by an adjustment mechanism to accommodate leather strips of different widths and thicknesses. The polishing parts are rotated by a motor to achieve rounded polishing of the edges of the leather strips.
It enables effective positioning and polishing of leather strips of different widths and thicknesses, improving the adaptability and aesthetics of polishing.
Smart Images
Figure CN224172774U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leather processing technology, specifically to a rounding machine for leather decorative strips. Background Technology
[0002] Leather is animal hide that has been denatured and is not easily perishable, obtained through physical and chemical processing such as hair removal and tanning. Leather is composed of natural protein fibers tightly woven in three-dimensional space, and its surface has a special grain layer with natural grain and luster, and a comfortable feel.
[0003] During the processing of leather, the edges need to be sanded. However, existing leather sanding equipment is not convenient for sanding leather of different sizes. When sanding leather of different widths or thicknesses, different sanding equipment needs to be changed, which affects the adaptability of sanding. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a leather trimming machine that can adapt to leather strips of different widths and thicknesses, so as to solve the problems mentioned in the background art.
[0005] This utility model is achieved through the following technical solution: a leather decorative strip rounding machine, including a fixed plate, an adjustment channel is provided horizontally in the middle of the fixed plate, multiple adjustment blocks are provided in the adjustment channel, each adjustment block has a mounting hole in its center, a first bearing is installed in each mounting hole, a shaft is installed in the inner ring of each first bearing, a first grinding part and a second grinding part are fitted on each shaft, one above the other, and a grinding groove with an annular structure is formed on the opposite surfaces of the first grinding part and the second grinding part. Upper positioning shells are provided on both sides of the first grinding part, and lower positioning shells are provided on both sides of the second grinding part. The upper and lower positioning shells are combined to form a positioning groove, and the positioning grooves are combined to form a positioning channel for the decorative strip to pass through. A first adjustment mechanism for adjusting the width of the positioning groove is installed between the upper and lower positioning shells. A second adjustment mechanism for moving the adjustment blocks is installed on the fixed plate.
[0006] As a preferred technical solution, the first adjustment mechanism includes a hand-tightening bolt, a second bearing, and multiple fixing plates. The fixing plates are respectively installed on the outer surfaces of the upper and lower positioning shells. The second bearing is embedded in the fixing plate on one side, and the fixing plate on the other side is provided with screw holes at the inner ring of the second bearing. The hand-tightening bolts are installed in the inner ring of the second bearing, and the shanks of the hand-tightening bolts are threaded into the corresponding screw holes.
[0007] As a preferred technical solution, a first connecting rod is installed on the side of the upper positioning shell facing the fixed plate. The other end of the first connecting rod is bent and installed on the adjusting block. An annular groove is provided on the lower grinding part. A connecting ring is sleeved in the annular groove. A second connecting rod is installed on the outer ring surface of the connecting ring. The other end of the second connecting rod is bent and installed on the lower positioning shell.
[0008] As a preferred technical solution, both the upper and lower positioning shells have an "L" shaped cross-section.
[0009] As a preferred technical solution, the second adjustment mechanism includes a first motor and a lead screw. Slide grooves are provided on both sides of the adjustment channel, and sliders are installed on both sides of the adjustment block. The sliders are slidably disposed in the slide grooves. Each slider on one side is provided with a lead screw hole, and the lead screws are threaded into the horizontally opposite lead screw holes. Third bearings are embedded in both ends of the fixed plate, and both ends of the lead screws are installed in the inner rings of the third bearings. The first motor is installed at one end of the fixed plate and is fixedly connected to the lead screw.
[0010] As a preferred technical solution, each adjusting block is equipped with a second motor that is fixedly connected to the shaft.
[0011] As a preferred technical solution, the fixing plate has fixing holes at both ends.
[0012] As a preferred technical solution, each shaft is provided with an axially oriented limiting groove, and the inner wall surface of the second grinding part protrudes a limiting part at the position opposite to the limiting groove, and the limiting part is slidably disposed in the limiting groove.
[0013] As a preferred technical solution, the first grinding component is mounted on the shaft.
[0014] The beneficial effects of this utility model are: This utility model has a simple structure and can adjust the distance between the first polishing parts and the second polishing parts according to the width of the leather strip. The distance between the first polishing parts and the second polishing parts can be changed through the first adjustment mechanism to adapt to different thicknesses, which increases adaptability. Furthermore, this condition can simultaneously change the distance between the upper positioning shell and the lower positioning shell, which can better position the leather strip and complete the polishing operation. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a bottom view of the present invention;
[0018] Figure 3 This is a side view of the present invention;
[0019] Figure 4 This is a schematic diagram of the structure of this utility model after removing the second grinding part and the fixing plate.
[0020] The components are as follows: 1. Fixed plate; 2. Adjustment channel; 3. Adjustment block; 4. Shaft; 5. First grinding component; 6. Second grinding component; 7. Grinding groove; 8. Connecting ring; 9. Second connecting rod; 10. Fixed plate; 11. Hand-tightening bolt; 12. Upper positioning shell; 13. Lower positioning shell; 14. Slide groove; 15. Lead screw; 16. First connecting rod; 17. Second motor; 18. First motor; 19. Limiting groove; 20. Limiting part; 21. Slider. Detailed Implementation
[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0022] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.
[0023] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.
[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this utility model discloses a leather decorative strip rounding machine, including a fixed plate 1. The fixed plate 1 has an adjustment channel 2 horizontally arranged in the middle. The adjustment channel 2 has multiple adjustment blocks 3. Each adjustment block 3 has a mounting hole at its center. Each mounting hole has a first bearing installed in it. Each first bearing has a shaft 4 installed in its inner ring. Each shaft 4 has a first polishing part 5 and a second polishing part 6 fitted on it, one above the other. The opposing surfaces of the first polishing part 5 and the second polishing part 6 are recessed to form an annular polishing groove 7. Each side of the first polishing part 5 has an upper positioning shell 12. Each side of the second polishing part 6 has a lower positioning shell 13. The upper positioning shell 12 and the lower positioning shell 13 are combined to form a positioning groove. The positioning grooves are combined to form a positioning channel for the decorative strip to pass through. Each upper positioning shell 12 and the lower positioning shell 13 is equipped with a first adjustment mechanism for adjusting the width of the positioning groove. The fixed plate 1 is equipped with a second adjustment mechanism for moving the adjustment blocks 3.
[0025] In this embodiment, the first adjustment mechanism includes a hand-tightening bolt 11, a second bearing, and multiple fixing plates 10. The fixing plates 10 are respectively installed on the outer surfaces of the upper positioning shell 12 and the lower positioning shell 13. The second bearing is embedded in the fixing plate 10 on one side, and the fixing plate 10 on the other side is provided with screw holes at the inner ring of the second bearing. The hand-tightening bolts 11 are installed in the inner ring of the second bearing, and the shanks of the hand-tightening bolts are threaded into the corresponding screw holes.
[0026] In this embodiment, a first connecting rod 16 is installed on the side of the upper positioning shell 12 facing the fixing plate 1. The other end of the first connecting rod 16 is bent and installed on the adjusting block 3. An annular groove is provided on the lower grinding part. A connecting ring 8 is sleeved in the annular groove. A second connecting rod 9 is installed on the outer ring surface of the connecting ring 8. The other end of the second connecting rod 9 is bent and installed on the lower positioning shell 13.
[0027] The second grinding component is independently set by the annular groove and the connecting ring, so that the rotation of the second grinding component will not drive the rotation of the second connecting rod and the lower positioning shell.
[0028] In this embodiment, the cross-sections of the upper positioning shell 12 and the lower positioning shell 13 are both set in an "L" shape, which enables the edge of the leather strip to be positioned, so that the leather strip can only move longitudinally along the positioning channel.
[0029] In this embodiment, the second adjustment mechanism includes a first motor 18 and a lead screw 15. The two sides of the adjustment channel 2 are provided with slide grooves 14. The two sides of the adjustment block 3 are each equipped with a slider 21. The slider 21 is slidably disposed in the slide groove 14. Each slider 21 on one side is provided with a lead screw hole. The lead screw 15 is threadedly connected to the horizontally opposite lead screw holes. The two ends of the fixing plate 1 are embedded with third bearings. The two ends of the lead screw 15 are installed in the inner ring of the third bearing. The first motor 18 is installed at one end of the fixing plate 1 and is fixedly connected to the lead screw 15.
[0030] The screw has a dividing line at the middle, and the threads on both sides of the dividing line are set oppositely, so that the screw can synchronously drive the adjusting block to move closer and further apart.
[0031] In this embodiment, each adjusting block 3 is equipped with a second motor 17 that is fixedly connected to the shaft 4.
[0032] In this embodiment, the fixing plate 1 has fixing holes at both ends. Bolts can pass through the fixing holes to fix the device to one end of the strip drawing machine, so that the cut leather strips can be directly inserted into the positioning channel.
[0033] In this embodiment, each shaft 4 is provided with an axially oriented limiting groove 19. The inner wall surface of the second grinding part 6 protrudes from the limiting part 20 at the location opposite to the limiting groove 19. The limiting part 20 is slidably disposed in the limiting groove 19, so that the second grinding part can only move up and down along the limiting groove. Furthermore, the sliding connection between the limiting part and the limiting groove allows the shaft to smoothly drive the rotation of the second grinding part.
[0034] In this embodiment, the first grinding component 5 is mounted on the shaft 4, so that the height of the first grinding component remains unchanged.
[0035] In use, first adjust the distance between the first polishing parts and the second polishing parts according to the width of the leather strip. When adjusting, start the first motor. The start of the first motor drives the lead screw. The rotation of the lead screw drives the slider and the adjusting block. The movement of the adjusting block drives the shaft, the first polishing part and the second polishing part. The movement of the adjusting block synchronously drives the second connecting rod, the upper positioning shell and the lower positioning shell.
[0036] After the width adjustment is completed, the distance between the first and second polishing parts is adjusted according to the thickness of the leather strip. During adjustment, the hand-tightening bolt is rotated directly. The rotation of the hand-tightening bolt drives the lower fixing plate and the second polishing part, so that the second polishing part can move up and down along the limiting groove until the distance between the polishing grooves matches the thickness of the leather strip. The rotation of the hand-tightening bolt also drives the lower positioning shell at the same time, so that the upper positioning shell and the lower positioning shell form a positioning groove that matches the thickness of the leather strip.
[0037] After the above is completed, the leather strip is inserted into the positioning channel. After the second motor is started, the second motor can drive the shaft, the first grinding part and the second grinding part to rotate. The rotation of the first grinding part and the second grinding part can grind the edge of the leather strip into an arc shape, grinding the edge of the leather strip from a right angle or bevel into a uniform arc shape, improving the feel and appearance.
[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.
Claims
1. A rounding machine for leather decorative strips, characterized in that: The fixed plate (1) has an adjustment channel (2) in the middle. The adjustment channel (2) has multiple adjustment blocks (3). Each adjustment block (3) has a mounting hole at its center. Each mounting hole has a first bearing installed in it. Each first bearing has a shaft (4) installed in its inner ring. Each shaft (4) has a first grinding part (5) and a second grinding part (6) fitted on it, one above the other. The opposing surfaces of the first grinding part (5) and the second grinding part (6) are recessed to form a ring structure. The groove (7) has upper positioning shells (12) on both sides of the first grinding part (5) and lower positioning shells (13) on both sides of the second grinding part (6). The upper positioning shells (12) and lower positioning shells (13) are combined to form a positioning groove. The positioning grooves are combined to form a positioning channel for the decorative strip to pass through. The upper positioning shell (12) and lower positioning shell (13) are both equipped with a first adjustment mechanism for the width of the positioning groove. The fixed plate (1) is equipped with a second adjustment mechanism that drives the adjustment block (3) to move.
2. The leather decorative strip rolling machine according to claim 1, characterized in that: The first adjustment mechanism includes a hand-tightening bolt (11), a second bearing, and multiple fixing plates (10). The fixing plates (10) are respectively installed on the outer surfaces of the upper positioning shell (12) and the lower positioning shell (13). The second bearing is embedded in the fixing plate (10) on one side. The fixing plate (10) on the other side is provided with screw holes at the inner ring of the second bearing. The hand-tightening bolt (11) is installed in the inner ring of the second bearing. The shank of the hand-tightening bolt is threaded into the corresponding screw hole.
3. The leather decorative strip rolling machine according to claim 1, characterized in that: The upper positioning shell (12) is equipped with a first connecting rod (16) on the side facing the fixed plate (1). The other end of the first connecting rod (16) is bent and installed on the adjusting block (3). The lower grinding part is provided with an annular groove. A connecting ring (8) is sleeved in the annular groove. A second connecting rod (9) is installed on the outer ring surface of the connecting ring (8). The other end of the second connecting rod (9) is bent and installed on the lower positioning shell (13).
4. The leather decorative strip rolling machine according to claim 1, characterized in that: Both the upper positioning shell (12) and the lower positioning shell (13) have an "L" shaped cross-section.
5. The leather decorative strip rolling machine according to claim 1, characterized in that: The second adjustment mechanism includes a first motor (18) and a lead screw (15). The two sides of the adjustment channel (2) are provided with slide grooves (14). The two sides of the adjustment block (3) are each equipped with a slider (21). The sliders (21) are slidably disposed in the slide grooves (14). Each slider (21) on one side is provided with a lead screw hole. The lead screws (15) are threadedly connected to the horizontally opposite lead screw holes. The two ends of the fixing plate (1) are embedded with third bearings. The two ends of the lead screws (15) are installed in the inner ring of the third bearings. The first motor (18) is installed at one end of the fixing plate (1) and is fixedly connected to the lead screws (15).
6. The leather decorative strip rolling machine according to claim 1, characterized in that: Each adjusting block (3) is equipped with a second motor (17) that is fixedly connected to the shaft (4).
7. The leather decorative strip rolling machine according to claim 1, characterized in that: The fixing plate (1) has fixing holes at both ends.
8. The leather decorative strip rolling machine according to claim 1, characterized in that: The shaft (4) is provided with a limiting groove (19) in the axial direction. The inner wall surface of the second grinding part (6) protrudes a limiting part (20) at the limiting groove (19) and the limiting part (20) is slidably disposed in the limiting groove (19).
9. The leather decorative strip rolling machine according to claim 1, characterized in that: The first grinding component (5) is installed on the shaft (4).