CN110814866B - Manufacturing process of straight cutter cutting machine blade - Google Patents
Manufacturing process of straight cutter cutting machine blade Download PDFInfo
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- CN110814866B CN110814866B CN201911127964.1A CN201911127964A CN110814866B CN 110814866 B CN110814866 B CN 110814866B CN 201911127964 A CN201911127964 A CN 201911127964A CN 110814866 B CN110814866 B CN 110814866B
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- blade
- guide edge
- wheel
- edge
- polishing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to a manufacturing process of a blade of a straight knife cutting machine, which comprises the following steps: step one, reserving a single-side machining allowance of 0.02-0.04 mm for a guide blade when a blade is machined; step two, coarse grinding of a blade guide edge; coarse grinding is carried out on the blade guide edge by adopting a coarse grinding wheel; step three, fine grinding the guide edge of the blade; fine grinding the blade guide edge by using a fine grinding wheel; step four, polishing the blade guide edge for one time; polishing the blade guide edge for the first time by adopting a hemp wheel; step five, secondary polishing of the blade guide edge; and carrying out secondary polishing on the blade guide edge by adopting a wind wheel, a coarse cloth wheel or a wool wheel so as to finish the manufacture of the whole blade. The invention leaves processing allowance when the blade grinds the guide edge, and increases the sharpening process of the guide edge after processing, so that the surface roughness of the guide edge is reduced, the friction coefficient is reduced when in use, the temperature of the friction contact area of the blade and the cutting fabric is greatly reduced, and the cutting of the melting material is easy and smooth.
Description
Technical Field
The invention relates to a manufacturing process of a blade of a straight-blade cutting machine, and belongs to the technical field of garment processing equipment.
Background
The straight knife cutting machine (electric scissors) is a cutting tool essential for the production of the industries of clothing, home textile, leather and the like, and a single-phase motor drives a blade to do up-and-down reciprocating cutting motion. The quality of the straight blade used in the method directly influences the quality and the production efficiency of the cut product.
In the traditional straight blade (blade for short), due to the relation of the blade grinding process, the processing lines (roughness about Ra3.2) on the guide edge of the blade are not parallel to the cutting motion direction, and the guide edge always rubs the fabric after the fabric is cut by the blade edge when the fabric is cut, so that great friction force and friction heat can be generated. When the chemical fiber fabric is cut, the fabric is often burnt by the generated heat, so that the blade is adhered to the fabric, and a cutting worker has to stop the machine to clean the adhered substances on the blade. And the cut fabric cuts are ironed and adhered, so that the product quality is seriously influenced, and even the whole fabric is scrapped. When the cotton-sandwiched fabric is cut, the guide edge can drive the edge material to move up and down along with the blade due to the influence of the friction force of the guide edge when the edge is trimmed, so that the trimmed fabric edge material is shaken visually, and the trimmed fabric edge has burrs which seriously affect the quality.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a manufacturing process of a straight knife cutting machine blade aiming at the prior art, which leaves a processing allowance when the blade grinds a guide edge, increases a sharpening process of the guide edge after processing, so that the surface roughness of the guide edge is reduced, the friction coefficient is reduced when the straight knife cutting machine blade is used, the temperature of the friction contact area of the blade and a cutting fabric is greatly reduced, the cutting of a melting material is easy and smooth, the cutting surface is neat when the cotton clamping material is cut, and the propulsion resistance is lower when the leather material is cut.
The technical scheme adopted by the invention for solving the problems is as follows: a manufacturing process of a straight knife cutting machine blade comprises the following steps:
step one, reserving a single-side machining allowance of 0.02-0.04 mm for a guide blade during machining of the blade, wherein the thickness of a cutting edge of the guide blade in an initial state is 0.48-0.50 mm;
step two, coarse grinding of a blade guide edge;
roughly grinding the blade guide edge by using a rough grinding wheel, wherein the thickness of the cutting edge of the guide edge after rough grinding is 0.44-0.46 mm;
step three, fine grinding the guide edge of the blade;
fine grinding is carried out on the blade guide edge by adopting a fine grinding wheel, and the thickness of the cutting edge of the guide edge after fine grinding is 0.40-0.42 mm; the surface roughness reaches Ra1.6;
step four, polishing the blade guide edge for one time;
polishing the blade guide edge by using a hemp wheel to reduce the surface roughness of the guide edge to Ra0.6;
step five, secondary polishing of the blade guide edge;
and a wind wheel, a coarse cloth wheel or a wool wheel is adopted to carry out secondary polishing on the guide edge of the blade, so that the surface roughness of the guide edge is reduced to be less than Ra0.4, and the manufacture of the whole blade is completed.
Preferably, the rough grinding wheel in the second step adopts a magnesia bonded white corundum wheel with the granularity of 60 #.
Preferably, the abrasive of the rough grinding wheel accounts for 62 percent, and the hardness is A.
Preferably, the grinding wheel in the third step adopts a magnesia bonded white corundum wheel with the granularity of 80 #.
Preferably, the grinding material proportion of the fine grinding wheel is 62%, and the hardness is A.
Preferably, the auxiliary material in the primary polishing in the fourth step is red wax or purple wax.
Preferably, the auxiliary material in the secondary polishing in the fifth step is white polished wax or green wax.
Compared with the prior art, the invention has the advantages that:
the invention relates to a manufacturing process of a straight knife cutting machine blade, which leaves a processing allowance when a blade grinds a guide edge, increases a blade grinding procedure of the guide edge after processing, reduces the surface roughness of the guide edge, reduces the friction coefficient when in use, greatly reduces the temperature of the friction contact area of the blade and a cutting fabric, facilitates the cutting of a melting material to be smooth, ensures that the cutting surface is neat when cutting a cotton clamping material, and has lower propelling resistance when cutting a leather material.
Drawings
FIG. 1 is a schematic view of the structure of a straight-blade cutting machine blade.
Wherein:
A cutting edge 3.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The invention relates to a manufacturing process of a blade of a straight knife cutting machine, which comprises the following steps:
step one, reserving a single-side machining allowance of 0.02-0.04 mm for a guide blade during machining of the blade, wherein the thickness of a cutting edge of the guide blade in an initial state is 0.48-0.50 mm;
step two, coarse grinding of a blade guide edge;
roughly grinding the blade guide edge by using a rough grinding wheel, wherein the thickness of the cutting edge of the guide edge after rough grinding is 0.44-0.46 mm;
the rough grinding wheel is a magnesia (MgO) bonding agent white corundum grinding wheel with the granularity of 60#, the grinding material proportion is 62%, and the hardness is A;
step three, fine grinding the guide edge of the blade;
fine grinding is carried out on the blade guide edge by adopting a fine grinding wheel, and the thickness of the cutting edge of the guide edge after fine grinding is 0.40-0.42 mm; the surface roughness reaches Ra1.6;
the fine grinding wheel is made of magnesite (MgO) bonding agent white corundum grinding wheel with the granularity of 80#, the grinding material proportion is 62%, and the hardness is A;
step four, polishing the blade guide edge for one time;
polishing the blade guide edge by using a hemp wheel to reduce the surface roughness of the guide edge to Ra0.6;
the auxiliary material during primary polishing adopts red wax or purple wax;
step five, secondary polishing of the blade guide edge;
a wind wheel, a coarse cloth wheel or a wool wheel is adopted to carry out secondary polishing on the guide edge of the blade, so that the surface roughness of the guide edge is reduced to be less than Ra0.4, and the whole blade is manufactured;
the auxiliary material during the secondary polishing adopts white polishing wax or green wax.
In addition to the above embodiments, the present invention also includes other embodiments, and any technical solutions formed by equivalent transformation or equivalent replacement should fall within the scope of the claims of the present invention.
Claims (3)
1. A manufacturing process of a straight knife cutting machine blade is characterized by comprising the following steps:
step one, reserving a single-side machining allowance of 0.02-0.04 mm for a guide blade during machining of the blade, wherein the thickness of a cutting edge of the guide blade in an initial state is 0.48-0.50 mm;
step two, coarse grinding of a blade guide edge;
the blade guide edge is roughly ground by adopting a rough grinding wheel, the rough grinding wheel adopts a magnesia binder white corundum grinding wheel with the granularity of 60#, and the thickness of the cutting edge of the guide edge after rough grinding is 0.44-0.46 mm;
step three, fine grinding the guide edge of the blade;
the blade guide edge is finely ground by adopting a fine grinding wheel, the fine grinding wheel adopts a magnesia binder white corundum wheel with the granularity of 80#, and the thickness of the cutting edge of the guide edge after fine grinding is 0.40-0.42 mm; the surface roughness reaches Ra1.6;
step four, polishing the blade guide edge for one time;
a hemp wheel is adopted to polish the blade guide edge for one time, and red wax or purple wax is adopted as an auxiliary material during the polishing for one time, so that the surface roughness of the guide edge is reduced to Ra0.6;
step five, secondary polishing of the blade guide edge;
and a wind wheel, a coarse cloth wheel or a wool wheel is adopted to carry out secondary polishing on the guide edge of the blade, and white polishing wax or green wax is adopted as auxiliary materials during secondary polishing, so that the surface roughness of the guide edge is reduced to be less than Ra0.4, and the whole blade is manufactured.
2. The process for manufacturing the blade of the straight-blade cutting machine according to claim 1, wherein: the abrasive of the rough grinding wheel accounts for 62 percent.
3. The process for manufacturing the blade of the straight-blade cutting machine according to claim 1, wherein: the proportion of the grinding material of the fine grinding wheel is 62%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911127964.1A CN110814866B (en) | 2019-11-18 | 2019-11-18 | Manufacturing process of straight cutter cutting machine blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911127964.1A CN110814866B (en) | 2019-11-18 | 2019-11-18 | Manufacturing process of straight cutter cutting machine blade |
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| Publication Number | Publication Date |
|---|---|
| CN110814866A CN110814866A (en) | 2020-02-21 |
| CN110814866B true CN110814866B (en) | 2022-03-25 |
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| CN201911127964.1A Active CN110814866B (en) | 2019-11-18 | 2019-11-18 | Manufacturing process of straight cutter cutting machine blade |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110079964A (en) * | 2018-01-26 | 2019-08-02 | 昆山立达纺织实业有限公司 | A kind of serrated knife and its processing method of high speed carpet weaving loom |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862649B (en) * | 2017-03-30 | 2018-08-28 | 安徽锋利锐刀片制造有限公司 | A kind of high-precision disc rolling shearing blade and its manufacturing method |
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- 2019-11-18 CN CN201911127964.1A patent/CN110814866B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110079964A (en) * | 2018-01-26 | 2019-08-02 | 昆山立达纺织实业有限公司 | A kind of serrated knife and its processing method of high speed carpet weaving loom |
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| CN110814866A (en) | 2020-02-21 |
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