CN1041051C

CN1041051C - Die cutter strip for making shoes or hat and its mfg. method

Info

Publication number: CN1041051C
Application number: CN96101578A
Authority: CN
Inventors: 林正华
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-07
Filing date: 1996-03-07
Publication date: 1998-12-09
Anticipated expiration: 2016-03-07
Also published as: CN1133696A

Abstract

The present invention relates to a blanking knife strip for manufacturing shoes and hats and relates to a manufacturing method of the blanking knife strip, which belongs to the technical field of a knife mould class. The present invention solves the problems that when the existing knife product is bent, the knife is easy to crack, the hardness of a knife body and a knife edge is low, and the head waste is large. The present invention is characterized in that the blanking knife strip is made of medium carbon steel strip of good quality, the length is 50 to 100m, the thickness is 2.2 to 2.3mm, an inclined plane and a plane form an angle of 13 DEG, and the included angle of the knife edge is 48 to 50 DEG; the manufacturing method comprises a cutting process, a normalizing process, an acid cleaning process, a rolling process, an edge pulling process, an isothermal quenching heat treatment process, an acid cleaning process, a polishing process, a knife edge milling process, a high-frequency quenching heat treatment process for the knife edge, a tempering process, a blueing process, and a processing temperature and time controlling process.

Description

A kind ofly make stamping-out cutter band and the manufacture method thereof that shoes and hats are used

The present invention is a kind of stamping-out cutter band and manufacture method thereof that shoes and hats are used of making, and belongs to knife mold class technical field.

Now, along with shoes and hats, apparel industry develop rapidly China, be used for shoes and hats such as stamping-out leather, plastics, rubber also to be used widely with the cutter band of raw and auxiliary material; The Chinese patent CD finds no similar report by retrieval.And the cutter band of existing technology is every and longly be the stamping-out cutter band of 2M, it be with long * widely make steel band for the steel plate cutting of 1M * 2M, through the plane inclined-plane, sharpening mouthful forms; This toughness of products is poor, and ftracture easily during bending (when bending surpasses 100 ° of angles, just ftractureing easily), cutter hub is thicker and the crew cut waste is big.

The purpose of this invention is to provide and a kind ofly can overcome above-mentioned shortcoming, stamping-out cutter band and manufacture method thereof that cutter band good toughness, cutter hub and edge of a knife hardness height, material use efficiency height, manufacturing shoes and hats with low cost, that can produce are fast in enormous quantities used.

Technical scheme of the present invention is: a kind ofly make the stamping-out cutter band (with reference to accompanying drawing 1) that shoes and hats are used, by cutter head 1, cutter hub 2, inclined-plane 3, the edge of a knife 4 and plane 5 are formed, cutter head 1, cutter hub 2, inclined-plane 3, the edge of a knife 4 and plane 5 are (high-quality) medium carbon steel band of same material and make, the thickness that it is characterized in that cutter hub 2 is 2.2 to 2.3mm, 13 ° at 5 one-tenth angles in inclined-plane 3 and plane, the angle of the edge of a knife 4 is 48 to 50 °, the length of cutter band is 50 to 100M, and the manufacture method of the stamping-out cutter band that the manufacturing shoes and hats are used comprises shearing, normalizing, rolling, thermal treatment, scrape, operations such as sharpening mouth, it is characterized in that with width be 70 to 110mm, length is 50 to 100M, thickness is 2.5 to 4.0mm the disposable steel band blank that cuts into required width of high-quality medium carbon steel band, automatically after the coiled plate-like, the hot-well formula resistance furnace normalizing that heats up in sending into, temperature is 810 to 830 ℃, time is 50 to 60min, afterwards, the steel band blank is through pickling, it is rolling by the rolling edge machine of dual roll type continuously to make it into wire, draw the limit deburring to become to have cutter head 1, cutter hub 2, inclined-plane 3, and the cutter band blank of the shape on plane 5, make cutter band blank after rolling become wire to be communicated with the tunnel like resistance furnaces by three sections continuously then and carry out heat treated, the transfer rate of cutter band blank is 2.0 to 2.5M/min, the entrance temperature is 810 to 830 ℃, the interlude temperature is 840 to 860 ℃, the outlet section temperature is 840 to 860 ℃, be coiled in immediately after the outlet and carry out the isothermal salt bath quenching in the square salt bath furnace, temperature is 360 to 370 ℃, afterwards, through pickling, scrape, grinding goes out the edge of a knife 4 on inclined-plane 3 and plane 5 again, then the edge of a knife 4 is carried out high-frequency quenching thermal treatment, it is 1.0M/min that the cutter strap clamp is held transfer rate, the Heating temperature of the edge of a knife 4 is 920 to 960 ℃, tempered, turn blue, promptly obtain a kind of stamping-out cutter band that shoes and hats are used of making.

The present invention has compared following beneficial effect with background technology; Owing to adopted normalizing thermal treatment in advance and the final thermal treatment of isothermal integral quenching in above-mentioned manufacture method, the crystalline structure of cutter band is tiny bainite, so, 1. do not ftracture during 180 ° of this product bendings, 2. cutter hub and edge of a knife hardness are all good, are respectively HRC31 to 36 and HRC40 to 45, and 3. this product is longer, be 50 to 100M, and cutter hub is thinner, the crew cut less wastage, and material is saved, 4. manufacture method is simple, and is easy to operate.

Description of drawings: Fig. 1 is the sectional view of steel band blank of the present invention; Fig. 2 is a kind of sectional view of making the stamping-out cutter band blank that shoes and hats use of the present invention; Fig. 3 is a kind of sectional view of making the stamping-out cutter band that shoes and hats use of the present invention; Fig. 4 is a kind of manufacture method skeleton diagram of making the stamping-out cutter band that shoes and hats use.

Now in conjunction with the accompanying drawings, elaborate embodiments of the invention: as shown in Figure 4, with width is 70 to 110mm, length is 50 to 100M, thickness is 2.5 to 4.0mm high-quality medium carbon steel band, by the disposable thickness that cuts into of shears is 2.5mm, width is the steel band blank (as shown in Figure 1) of 32mm, after shearing automatically with after the steel band blank coiled plate-like, the hot-well formula resistance furnace normalizing that heats up in sending into, temperature is 810 to 830 ℃, time is 50 to 60min, afterwards, the steel band blank is through pickling, it is rolling by the rolling edge machine of dual roll type continuously to make it into wire, draw the limit deburring to become to have cutter head 1, cutter hub 2, inclined-plane 3, and the cutter band blank (as shown in Figure 2) of the shape on plane 5, the thickness of cutter hub is 2.2 to 2.3mm, 13 ° at 5 one-tenth angles in inclined-plane 3 and plane, roll speed is 2.0 to 3.0M/min, on, lower roll is initiatively; Then, utilize towing mechanism, make the cutter band blank after rolling become wire to be communicated with the tunnel like resistance furnaces by three sections continuously, in air atmosphere, carry out heat treated, the transfer rate of cutter band blank is 2.0 to 2.5M/min, the entrance temperature is 810 to 830 ℃, the interlude temperature is 840 to 860 ℃, the outlet section temperature is 840 to 860 ℃, be coiled in immediately after the outlet and carry out the isothermal salt bath quenching in the square salt bath furnace, temperature is 360 to 370 ℃, time is 50 to 60min, afterwards, through pickling, scrape, go out the edge of a knife 4 with plain external grinding machine grinding on the inclined-plane 3 of cutter band blank and plane 5 again, the angle of the edge of a knife 4 is 48 to 50 °, then utilize towing mechanism, make the cutter band blank edge of a knife 4 make progress into wire and carry out high-frequency quenching thermal treatment continuously, quench as acetylene torch, the Heating temperature of the edge of a knife 4 is 920 to 960 ℃, it is 1.0M/min that the cutter strap clamp is held transfer rate, tempered, turn blue, promptly obtain a kind of stamping-out cutter band (as shown in Figure 3) that shoes and hats are used of making, this cutter band good toughness, cutter hub, edge of a knife hardness height, cost is low, the material use efficiency height can be produced in enormous quantities fast.

Claims

1. make the stamping-out cutter band that shoes and hats are used for one kind, form by cutter head (1), cutter hub (2), inclined-plane (3), the edge of a knife (4) and plane (5), cutter head (1), cutter hub (2), inclined-plane (3), the edge of a knife (4) and plane (5) are the medium carbon steel band of same material and make, the thickness that it is characterized in that cutter hub (2) is 2.2 to 2.3mm, inclined-plane (3) becomes 13 ° at angle with plane (5), the angle of the edge of a knife (4) is 48 to 50 °, and the length of cutter band is 50 to 100M.

2, a kind of method of making the stamping-out cutter band that manufacturing shoes and hats as claimed in claim 1 use, comprise shearing, normalizing, rolling, thermal treatment, scrape, operations such as sharpening mouth, it is characterized in that with width be 70 to 110mm, length is 50 to 100M, thickness is 2.5 to 4.0mm the disposable steel band blank that cuts into required width of medium carbon steel band, automatically after the coiled plate-like, the hot-well formula resistance furnace normalizing that heats up in sending into, temperature is 810 to 830 ℃, time is 50 to 60min, afterwards, the steel band blank is through pickling, it is rolling by the rolling edge machine of dual roll type continuously to make it into wire, draw the limit deburring to become to have cutter head (1), cutter hub (2), inclined-plane (3), and the cutter band blank of the shape on plane (5), make cutter band blank after rolling become wire to be communicated with the tunnel like resistance furnaces by three sections continuously then and carry out heat treated, the transfer rate of cutter band blank is 2.0 to 2.5M/min, the entrance temperature is 810 to 830 ℃, the interlude temperature is 840 to 860 ℃, the outlet section temperature is 840 to 860 ℃, be coiled in immediately after the outlet and carry out the isothermal salt bath quenching in the square salt bath furnace, temperature is 360 to 370 ℃, afterwards, through pickling, scrape, (3) and plane (5) last grinding goes out the edge of a knife (4) on the inclined-plane again, then the edge of a knife (4) is carried out high-frequency quenching thermal treatment, it is 1.0M/min that the cutter strap clamp is held transfer rate, the Heating temperature of the edge of a knife (4) is 920 to 960 ℃, and is tempered, turn blue, promptly obtain a kind of stamping-out cutter band that shoes and hats are used of making.