Punching method applied to integration of long-hair thick-bottom velvet animal fur

Abstract

The invention discloses a punching method applied to integration of long-hair thick-bottom velvet animal fur, which comprises the following steps of: carrying out manual detection on the fur to obtain fur density data; a conveying paperboard is placed on a platen of the perforating machine, and a transparent film roller is erected above the conveying paperboard; selecting a corresponding mold according to the type of the fur and punching and typesetting requirements; the fur is placed on a conveying paperboard, and a plastic film is placed on the fur layer of the fur; according to the method, the fur is preprocessed, the fur is fixed through the plastic film and the conveying paperboard, a conveying structure in which the plastic film, the fur and the conveying paperboard are stacked is formed, the mold and the punching parameters are adjusted according to the punching and typesetting design requirements, and the punching quality of the fur is improved. And the fur with long hair and thick bottom hair is uniformly punched, so that the attractiveness, the practicability and the light weight of the fur with the thick bottom hair are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of fur processing, and in particular to a punching method applied to the fur of long-haired, thick-soled animals. Background Art

[0002] Long-haired, thick-pile fur (such as fox and raccoon fur), due to its fine fibers, rich down, and excellent warmth, has long been a core material for high-end clothing (fur coats and shawls), home decor (blankets and cushions), and luxury goods (luggage and car interiors). As consumer demand for lightweight, breathable, and aesthetically pleasing products increases, fur perforation has become a key processing step.

[0003] Since factors such as the origin and climate of animals directly affect the size and fur density of animals, in the existing technology, the fur of long-haired thick-pile animals is of high quality and high hair density, and the amount of hair is often reduced by trimming. Due to the characteristics of their thick fur, conventional punching methods cannot improve the aesthetics of the fur and achieve lightweight. Therefore, a punching method for the fur of long-haired thick-pile animals is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems mentioned in the above background technology. The present invention provides a method for punching holes in the fur of long-haired thick-soled animals.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A punching method for the fur of a thick-soled, long-haired animal comprises the following steps:

[0007] Manually inspect the fur to obtain the thickness of the fur base;

[0008] Place cardboard on the platen of the punching machine, set up a transparent film roller above the cardboard, and transport the cardboard and transparent film through the punching machine and conveyor;

[0009] Select the appropriate mold according to the type of fur and punching layout requirements, and install the mold on the punching machine;

[0010] Conduct a test run, use sample paper to adjust the mold tool up and down, and make initial adjustments to the punching pressure and punching depth of the mold based on the fur data, so that it can just penetrate the sample paper without damaging the conveying cardboard;

[0011] After debugging is completed, place the fur on the conveyor cardboard, and place a plastic film on the skin layer of the fur, and fix the fur by the plastic film and the conveyor cardboard;

[0012] Set the punching parameters of the punching machine according to the fur density data and punching layout, and punch the fur according to the punching parameters.

[0013] Preferably, the method further comprises pre-treating the fur, flattening and shaping the fur.

[0014] Preferably, the pretreatment includes peeling, trimming, moistening, nailing, applying glue, and drying.

[0015] Preferably, the debugging of the mold includes: fine-tuning the fixing bolts at both ends of the punching machine mold (tightening them step by step in 3-5 times), using a laser level to detect the verticality of the mold and the workbench, and fine-tuning the fixing bolts 3-5 times, with a fine-tuning gap of 0.2mm each time, adjusting the verticality of the mold to a deviation of <0.02mm / m to eliminate mold tilt.

[0016] Preferably, the punching parameters and the punching depth of the mold are fine-tuned according to the perforation of the fur skin and whether the conveying cardboard and plastic film around the fur are penetrated to avoid broken hair needles and fluff.

[0017] Preferably, the punching parameters include punching pressure, punching depth, punching frequency, walking step length, and walking speed.

[0018] Preferably, dynamic compensation is performed during the fur punching process, and after 20-30 consecutive punchings, the punching pressure is 0.005N / mm 2 Pressure compensation, drilling depth compensation of 0.002mm.

[0019] Preferably, the method further comprises combing the punched fur 2-5 times with a combing machine to remove loose hair in the fur as well as broken hair caused by punching and residual hair at the hole positions.

[0020] The beneficial effects of the present invention are as follows:

[0021] The present invention pre-treats the fur, fixes the fur with a plastic film and a conveying cardboard, forms a conveying structure in which the plastic film, the fur, and the conveying cardboard are stacked, adjusts the mold and punching parameters according to the punching layout design requirements, punches the fur with long hair and thick velvet, and arranges the air holes evenly, effectively improves the air permeability and aesthetics of the fur, and realizes lightweight processing of the fur. The present invention can be widely used in the processing of high-end fur clothing such as fox fur coats, silver fox fur jackets and other long-haired fur clothing, as well as the processing of home decoration. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below.

[0023] The present invention provides a punching method for the fur of a thick-soled, long-haired animal, comprising the following steps:

[0024] S1. Pre-treating the fur by flattening and shaping the fur. Specifically, the moisture content of the fur layer after shaping is 10-15%;

[0025] Wherein, the fur in step S1 is fresh fur that has been tanned or processed;

[0026] S2. Detect the fur and obtain fur data. Specifically, the fur data includes fur weight, cortex thickness, fur density, and fur length.

[0027] S3. Place a conveyor cardboard on the platen of the punching machine, set up a transparent film roller above the conveyor cardboard, and convey the conveyor cardboard and transparent film through the punching machine and conveyor, wherein the cardboard thickness is 1-3 mm;

[0028] S4. Select the corresponding mold according to the type of fur and punching layout requirements, and install the mold on the punching machine;

[0029] S5. Test the machine and debug the mold using sample paper. Adjust the punching pressure and punching depth of the mold according to the fur data so that it can just penetrate the sample paper without damaging the conveying cardboard.

[0030] Specifically, the test machine runs as follows:

[0031] Check the stability of the punching machine power supply and air source to ensure that the punching pressure output fluctuation range is ≤±0.2bar;

[0032] Verify sensor sensitivity (such as pressure sensor, displacement sensor) to ensure data feedback delay is less than 0.1 second;

[0033] Clean the mold surface residue (such as metal debris, oil stains) with a dust-free cloth dipped in a special cleaning agent (such as 75% or 95% alcohol) to prevent impurities from affecting the punching accuracy;

[0034] Mold debugging is as follows:

[0035] Use the fine-tuning fixing bolts at both ends of the punching machine mold (tighten them gradually in 3-5 times), use a laser level to check the verticality of the mold and the workbench, and fine-tune the fixing bolts 3-5 times, with a fine-tuning gap of 0.2mm each time, to adjust the verticality of the mold to a deviation of less than 0.02mm / m to eliminate mold tilt;

[0036] Initially set the lower die gap of the mold to 120-150% of the thickness of the sample paper (e.g. if the sample paper is 10mm thick, the gap is set to 12-15mm);

[0037] According to the thickness of the sample paper, set the initial punching depth and reserve a safety margin of 0.1mm;

[0038] According to the fur data (such as fox fur tensile strength ≥ 15N / mm 2 ), set the initial punching pressure to 80-90% of the theoretical value (e.g. 12-13.5 N / mm 2 );

[0039] Punch the sample paper 2-5 times, using a stepped depth increment. Each time the depth increases by 0.02mm and retracts by 0.01mm compared to the previous time as a baseline value. Observe the edge of the hole formed each time, until the hole edge is uniform, clear, and free of burrs.

[0040] After punching the sample paper, record the pressure curve (sampling frequency 100Hz) and analyze the pressure peak fluctuation range. If the fluctuation is >±5%, adjust the punching pressure by ±0.5N / mm. 2 Fine-tune until the drilling pressure fluctuation meets the requirement of ≤±5%;

[0041] S6. After debugging is completed, the fur is placed on the conveying cardboard, and a plastic film is placed on the cortex of the fur. The plastic film and the conveying cardboard are rolled and pressed on both sides of the mold by rollers, and the fur is fixed by the plastic film and the conveying cardboard;

[0042] Specifically, the plastic film is conveyed by a conveyor, the hair layer of the fur contacts the conveying cardboard, and the skin layer contacts the plastic film, forming a conveying structure in which the plastic film, the fur, and the conveying cardboard are stacked;

[0043] S7, setting the punching parameters of the punching machine according to the fur data and the punching layout, and punching the fur according to the punching parameters;

[0044] The drilling parameters include drilling pressure, drilling depth, drilling frequency, walking step length, and walking speed;

[0045] And dynamic compensation is performed during the fur punching process. After 20-30 consecutive punchings, the punching pressure is 0.005N / mm 2 Pressure compensation, drilling depth compensation of 0.002mm;

[0046] S8. According to the perforation of the fur skin and whether the cardboard and plastic film around the fur are perforated, fine-tune the punching parameters and the punching depth of the mold to avoid perforation of the cardboard.

[0047] In this embodiment, the pretreatment further includes skinning, trimming, moistening, nailing, brushing glue, and drying. Specifically, the fur is skinned, the head, front legs, hind legs and abdomen at the corners are cut off, the skin of the skinned and trimmed fur is sprayed with wet skin, the fur is pulled apart and nailed to a wooden board with nails, the skin is brushed with glue, and the fur is placed in the sun to dry until the fur and the glue are dry, thereby obtaining a flat, regular, rectangular-like skin.

[0048] In this embodiment, further, the mold includes: a cylindrical hollow tool mold with a cutting edge arranged in a transverse array, and a cylindrical hollow tool mold with a cutting edge arranged in a wave shape;

[0049] Among them, the horizontal array mold: the diameter of the cylindrical hollow blade tool is 0.6-1.2mm, the horizontal punching spacing is 2.5-5mm, and the vertical punching spacing is 2-5mm;

[0050] Among them, the wave-shaped mold: the diameter of the cylindrical hollow blade tool is 0.6-1.2mm, the horizontal punching spacing is 4-10mm, the vertical punching spacing is 2-6mm, and the wave peak-to-valley spacing is 1-3mm.

[0051] In this embodiment, further, the step S9 is further included, combing the punched fur 2-5 times with a combing machine to remove floating hair in the fur and broken hair caused by punching and residual hair at the hole positions.

[0052] In this embodiment, further, after the combing process, the fur is reduced in weight by 40-60% and the hair density is reduced by 50-80% compared to before the punching process.

[0053] Working principle of the present invention:

[0054] Take fur No. 1 and fur No. 2, and perform weight test and hair density test on fur No. 1 and fur No. 2 before punching;

[0055] The weight of No. 1 fur before punching is 242.74g, the guard hair density is about 112 hairs / cm2, and the down hair density is about 20,000 hairs / cm2;

[0056] The weight of No. 2 fur before punching is 362.9g, the guard hair density is about 120 hairs / cm2, and the down hair density is about 21,000 hairs / cm2;

[0057] A die with a horizontal array of cylindrical cutting tools was installed on the punching machine. The punching diameter was 0.8 mm, the horizontal punching spacing was 3.5 mm, and the vertical punching spacing was 3 mm.

[0058] Place fur No. 1 and fur No. 2 side by side on a conveyor cardboard and cover with plastic film. Set the walking step length of fur No. 1 to 3 mm and the walking step length of fur No. 2 to 3.2 mm. Set the punching frequency of both to 150 times / min.

[0059] The weight of No. 1 fur after punching is 124.45g, with a weight reduction of 48.73%; the weight of No. 2 fur after punching is 181.6g, with a weight reduction of 49.96%;

[0060] The weight of No. 1 fur after punching is 124.45g, with a weight reduction of 48.73%; the weight of No. 2 fur after punching is 181.6g, with a weight reduction of 49.96%;

[0061] After punching, the guard hair density of No. 1 fur is about 50 pieces / cm2, and the guard hair density removal rate is 55.6%. The down hair density is about 8600 pieces / cm2, and the down hair density removal rate is 57%.

[0062] After punching, the guard hair density of No. 2 fur is about 59 pieces / cm2, the guard hair density removal rate is 51.2%, and the down density is about 10200 pieces / cm2, and the down density removal rate is 51.4%.

[0063] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A punching method for the fur of long-haired thick-soled animals, characterized in that: The following steps are involved: Manually inspect the fur to obtain the thickness of the fur base; Place cardboard on the platen of the punching machine, set up a transparent film roller above the cardboard, and transport the cardboard and transparent film through the punching machine and conveyor; Select the appropriate mold according to the type of fur and punching layout requirements, and install the mold on the punching machine; Conduct a test run, use sample paper to adjust the mold tool up and down, and make initial adjustments to the punching pressure and punching depth of the mold based on the fur data, so that it can just penetrate the sample paper without damaging the conveying cardboard; After debugging is completed, place the fur on the conveyor cardboard, and place a plastic film on the skin layer of the fur, and fix the fur by the plastic film and the conveyor cardboard; Set the punching parameters of the punching machine according to the fur density data and punching layout, and punch the fur according to the punching parameters.

2. The punching method for fur of long-haired thick-soled animals according to claim 1, characterized in that: It also includes pre-treatment of the fur, flattening and shaping the fur.

3. The punching method for fur of long-haired thick-soled animals according to claim 2, characterized in that: The pretreatment includes peeling, trimming, moistening, nailing, brushing glue and drying.

4. The punching method for fur of long-haired thick-soled animals according to claim 1, characterized in that: The debugging of the mold includes: fine-tuning the fixing bolts at both ends of the punching machine mold (tightening them step by step in 3-5 times), using a laser level to detect the verticality of the mold and the workbench, and fine-tuning the fixing bolts 3-5 times, with a fine-tuning gap of 0.2mm each time, to adjust the verticality of the mold to a deviation of <0.02mm / m, eliminating mold tilt.

5. The punching method for fur of long-haired thick-soled animals according to claim 1, characterized in that: It also includes fine-tuning the punching parameters and the punching depth of the mold according to the perforation of the fur skin and whether the conveying cardboard and plastic film around the fur are penetrated to avoid broken hair needles and fluff.

6. The punching method for fur of thick-soled long-haired animals according to claim 1, characterized in that: The punching parameters include punching pressure, punching depth, punching frequency, walking step length, and walking speed.

7. The punching method for fur of thick-soled long-haired animals according to claim 1, characterized in that: Dynamic compensation is performed during the fur punching process. After 20-30 consecutive punchings, the punching pressure is 0.005N / mm 2 Pressure compensation, drilling depth compensation of 0.002mm.

8. The punching method for fur of long-haired thick-soled animals according to claim 1 or 5, characterized in that: It also includes combing the punched fur 2-5 times through a combing machine to remove loose hair in the fur as well as broken hair and residual hair caused by punching.