Auxiliary template for chip cleaning machine and chip cutting method thereof

Abstract

The invention belongs to the technical field of leather processing in the shoemaking industry, and particularly relates to an auxiliary template for a chipping machine and a chipping method of the auxiliary template. An auxiliary template for a piece cleaning machine comprises a flexible template body, an upper piece groove is formed in the template body, the outline of the upper piece groove is matched with that of an upper piece blank, the upper piece groove comprises a first special area and a second special area, and the depth h1 of the first special area and the depth h2 of the second special area are both smaller than the depth h of the upper piece groove. Compared with the prior art, the method has the technical effects that the template is utilized, the standard groove is manufactured, the chipping thickness is directly restrained through physical limiting, the defect that the natural thickness of leather is not uniform is overcome, multi-thickness chipping of the leather can be completed by passing through the leather at a time, and meanwhile the method meets the production requirement of a standardized assembly line.

Description

Technical Field

[0001] The invention belongs to the technical field of leather processing in the shoemaking industry, and particularly relates to an auxiliary template for a sheet cutting machine and a sheet cutting method thereof. Background Art

[0002] In the leather shoe making process, the leather upper blank needs to be sliced ​​to reach the standard thickness, such as Figure 1 Due to the requirements of shoemaking technology, the thickness of different areas of the leather upper (such as the toe, waist, heel, and folding edge) are different after the slice operation is completed. Figure 1 The thickness of the toe portion 11 of the upper 10 is 10 mm, and the thickness of the folded edge 11 is 8 mm.

[0003] The slicing operation is generally completed by machines such as edge slicing machines, skin slicing machines, and upper slicing machines.

[0004] Technical difficulties: Because different areas of the leather upper (such as the toe, waist, and heel) need to be shaved to different thicknesses, a leather upper blank needs to be shaved multiple times to be completed. Moreover, the roller distance (roller distance is the parameter that determines the thickness of the leather after shaving) needs to be adjusted between two shavings, which makes the operation cumbersome and inefficient. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: how to design an auxiliary template for a sheet-passing machine to reduce the number and difficulty of adjusting the roller distance.

[0006] The technical solution of the present invention is specifically as follows: An auxiliary template for a sheet-passing machine includes a flexible template. The template is provided with a top sheet groove. The contour of the top sheet groove matches the contour of the top sheet blank. The top sheet groove includes a first special area and a second special area. The depth h1 of the first special area and the depth h2 of the second special area are both smaller than the depth h of the top sheet groove.

[0007] Smooth transition areas are provided between the first special area, the second special area and the body of the upper groove.

[0008] The edge of the upper groove extends outward to form a triangular notch.

[0009] The material of the template is flexible polyurethane material.

[0010] A slicing method thereof, using the auxiliary template for the slicing machine, comprises the following steps: S10, making a template 10: cutting a flexible polyurethane material into a template, cutting an upper groove, a first special area, and a second special area on the surface of the template according to the shape of the shoe components, wherein the depth h of the groove, the depth h1 of the first special area, and the depth h2 of the second special area match the target chip thickness; S20, bonding: stick double-sided tape on the bottom of the groove of the upper piece, and then place the upper piece leather material on the bottom of the groove of the upper piece to complete the fixation of the upper piece leather material and the template.

[0011] S30, chipping operation: including steps S31-S33: S31. Calculate the thickness D: D = template thickness H - groove depth h; S32, adjust the roller distance: use the sum of the upper sheet standard thickness and the remaining thickness D as the parameter to adjust the roller distance; S33, shaving: put the template into the shaving machine for shaving. After the processing is completed, the actual thickness of the leather is the standard thickness of the upper.

[0012] S40. Take out the upper piece: using a sharp object to take out a part of the upper piece from the groove of the upper piece by relying on the notch, and then holding this part, take out the entire upper piece.

[0013] Compared with the existing technology, the technical effect of the present invention is that the present invention uses a template to make standard grooves, directly constrains the shaving thickness through physical limiting, avoids the disadvantage of uneven natural thickness of leather, and achieves multi-thickness shaving of leather in one pass, while adapting to the production needs of standardized assembly lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the prior art.

[0015] Figure 2 It is a schematic top view of the present invention.

[0016] Figure 3 It is a cross-sectional schematic diagram of the present invention.

[0017] Figure 4 1 is a schematic diagram of the use state of the present invention (1).

[0018] Figure 5 This is a schematic diagram of the use state of the present invention (2). DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments thereof.

[0020] like Figure 2-3 An auxiliary template for a sheet-cutting machine includes a flexible template 10. A side panel groove 20 is provided on the template 10. The contour of the side panel groove 20 matches the contour of the side panel blank. The side panel groove 20 includes a first special area 21 and a second special area 22. The depth h1 of the first special area 21 and the depth h2 of the second special area 22 are both smaller than the depth h of the side panel groove 20.

[0021] In practice, according to the upper blanks corresponding to shoes of different specifications, the depth h1 of the first special area 21 and the position and depth of the second special area 22 are adjusted according to the specific requirements of the upper.

[0022] In order to avoid discontinuity, smooth transition areas 23 are provided between the first special area 21 , the second special area 22 and the main body of the upper groove 20 .

[0023] In order to facilitate the removal of the upper piece, the edge of the upper piece groove 20 extends outward to form a triangular notch 24 .

[0024] For ease of manufacturing, the template 10 is made of flexible polyurethane (PU) material.

[0025] Its working principle is: like Figure 2-5 , including the following steps: S10. Making template 10: Cut flexible polyurethane material to make template 10 with a thickness of 3-5 mm. Cut upper groove 20, first special area 21, and second special area 22 on the surface of template 10 according to the shape of shoe components. The depth h of groove 20, the depth h1 of first special area 21, and the depth h2 of second special area 22 match the target thickness. The first special area 21 is the toe area and has a depth of 1.5 mm. The second special area 22 is the folded edge and has a depth of 0.8 mm.

[0026] S20 , bonding: stick double-sided tape on the bottom of the upper groove 20 , then place the upper leather material on the bottom of the upper groove 20 to complete the fixing of the upper leather material and the template 10 .

[0027] S30, chipping operation: including steps S31-S33: S31. Calculate the thickness D: D = template thickness H - groove depth h; S32, adjust the roller distance: use the sum of the upper sheet standard thickness and the remaining thickness D as the parameter to adjust the roller distance; S33, slice and cut: Figure 4-5 , put the template 10 into the sheet-cutting machine for sheet cutting. After the processing is completed, the actual thickness of the leather is the standard thickness of the upper piece.

[0028] S40, taking out the upper piece: relying on the notch 24, use a sharp object to take out a part of the upper piece from the upper piece groove 20, and then hold this part to take out the entire upper piece.

[0029] Features of this application: S1. The present invention utilizes a template to produce standard grooves, and directly constrains the shaving thickness through physical limiting, thereby avoiding the disadvantage of uneven natural thickness of leather, and achieving multi-thickness shaving of leather in one pass, while adapting to the production needs of standardized assembly lines.

[0030] S2. Natural leather has different thicknesses depending on its parts. For example, the thickness difference between the back and belly of a cow can be as much as 1-2 mm. In this case, some leather is too thick. In this case, when slicing using the above method, the "excessively thick leather portion" is also exposed outside the upper groove 20. In step S33, the "excessively thick leather portion" is also shaved off, and no new step is required. The standard can be met, and one step is saved.

[0031] S3. This device uses the groove design of the soft plastic template to accurately control the thickness of the leather upper in different areas. It can achieve precise control of the thickness of the leather in different areas during a single processing, achieve uniformity and consistency of natural leather after processing, and greatly improve product quality and production efficiency.

[0032] S4. The transition structure set on the edge of the groove ensures that the thickness of the leather changes smoothly and gradually after shaving to avoid faults.

[0033] S5. Quick change: The back of the template is pre-set with positioning holes, which are aligned with the buckles of the sheet feeding machine conveyor belt. When switching shoes, you only need to replace the template (taking less than 20 seconds).

[0034] S6. Compatibility: Supports laser engraving or CNC batch processing templates, suitable for all types of shoes such as sports shoes and leather shoes.

[0035] S7. Strong universality: The cost of a single template is less than 50 yuan, suitable for low-cost intelligent upgrades of small and medium-sized factories.

[0036] S8. Quality improvement: The error of chip thickness is ≤0.05mm, which solves the problem of uneven thickness of natural leather and increases the product qualification rate from 85% to 99%.

[0037] S9. No need for complex adjustment equipment, multiple thickness processing can be completed in a single pass, manual operation time is reduced by 70%, repetitive operation time is saved by 80%, equipment idling and rework are reduced, power consumption is reduced, and leather waste rate is reduced.

[0038] For other contents, please refer to the prior art.

[0039] The above description is only the preferred embodiment of the present invention. It should be pointed out that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be regarded as the scope of protection of the present invention.

Claims

1. An auxiliary template for a sheet-cutting machine, comprising a flexible template (10), characterized in that: The template (10) is provided with a side panel groove (20), the contour of the side panel groove (20) matches the contour of the side panel blank, the side panel groove (20) includes a first special area (21) and a second special area (22), and the depth h1 of the first special area (21) and the depth h2 of the second special area 22 are both smaller than the depth h of the side panel groove (20).

2. The auxiliary template for a sheet forming machine according to claim 1, wherein: A smooth transition area (23) is provided between the first special area (21), the second special area (22) and the body of the upper piece groove (20).

3. The auxiliary template for a sheet forming machine according to claim 2, wherein: The edge of the upper groove (20) extends outward to form a triangular notch (24).

4. The auxiliary template for a sheet forming machine according to claim 3, wherein: The material of the template (10) is polyurethane material.

5. A slicing method, characterized in that: Using the auxiliary template for the sheet-cutting machine as claimed in claim 3 comprises the following steps: S10, making a template (10): cutting a flexible polyurethane material to make a template (10), cutting an upper groove (20), a first special area (21) and a second special area (22) on the surface of the template (10) according to the shape of the shoe parts, wherein the depth h of the groove (20), the depth h1 of the first special area (21) and the depth h2 of the second special area (22) match the target chip thickness; S20, bonding: sticking double-sided tape on the bottom of the upper groove (20), and then placing the upper leather material on the bottom of the upper groove (20), completing the fixation of the upper leather material and the template (10); S30, chipping operation: including steps S31-S33: S31. Calculate the thickness D: D = template thickness H - groove depth h; S32, adjust the roller distance: use the sum of the upper standard thickness and the thickness D as the parameter to adjust the roller distance; S33, slicing: placing the template (10) into a slicing machine for slicing; S40, take out the upper piece: relying on the notch (24), use a sharp object to take out a part of the upper piece from the upper piece groove (20), and then hold this part to take out the entire upper piece.

Images