CN1147996A - Method for working dies of integrally punching flexible semi-products sheets - Google Patents

Abstract

The present invention relates to a die processing method including simultaneously processing of male die setting plate and female die plate, expanding male die with punching head, matching female die with male die, self-punching and forming and correcting male die by using female die as reference. Said invention canimplement large-scale integrated die solid-punching processing process for flexible products, and can greatly raise the production efficiency of the products such as rubber and plastic bottle plug, etc.. Said invention is simple and easy to implement, and its production cost is low.

Description

The processing method of dies of integrally punching flexible semi-products sheets

The present invention relates to a kind of processing method of mould.

The monomer of general die-cut rigidity workpiece or several aggregate die cutting dies, the fit tolerance of its concavo-convex mould and alignment tolerance, the mould machining process with routine can reach designing requirement fully.But for the extensive set matrix integrally punching mould of flexible article, as contain the set matrix integrally punching mould of tens of or hundreds of bottle closure of rubber, then can't realize for a long time.Its reason is that the cooperation of the concavo-convex mould of this mould requirement is no gap cooperation (fit tolerance≤0.005mm); and on a template, to offer or install tens of even hundreds of dies or punch; then on the template alignment tolerance of each die or punch just to require very accurate, existing conventional die processing method be unapproachable.

Purpose of the present invention is exactly that extensive set matrix integrally punching mould for above-mentioned flexible article provides a kind of effective processing method.

The inventive method is as follows:

A, punch location-plate and concave template are fixed together, accurately carry out synchronous processing, make the size in each punch hole on the punch location-plate and mutual orientation distance fully consistent with each die on the concave template by the design size of die;

B, process each monomer punch and make its afterbody than the little 0.005--0.01mm of die internal diameter, and leading section is than the big 0.01--0.02mm of die internal diameter, and the punch material adopts than the lower material of die material hardness, or makes punch material hardness less than the die material by heat treatment;

C, each monomer punch, base plate, location-plate, holding pad, the upper bolster that has installing handle and guide pin bushing and the rubber cushion blocks that will process are assembled into patrix, and concave template and the die shoe that is fixed with guide pillar are assembled into counterdie;

D, upper and lower mould is installed on joins mould on the punch press from dashing, and each punch is entered respectively about corresponding each die 5mm, check the matched moulds situation;

E, pull down whole patrix and be inverted on platform,, enlarge 0.02-0.03mm with the drift bulging to matched moulds punch devious wherein;

F, with patrix load onto again punch press again row join mould from dashing, so be benchmark with the die, revise punch, cooperate qualified (fit tolerance≤0.005mm) until whole concavo-convex moulds for several times repeatedly;

G, repair except that the die-cut burr on each punch at last, promptly finish whole process.

Accompanying drawing 1 is the general structure schematic diagram of embodiments of the invention-bottle closure of rubber set matrix integrally punching mould.

Accompanying drawing 2 is the patrix package assembly schematic diagram of above-mentioned mould.

Accompanying drawing 3 is for carrying out the schematic diagram of bulging processing to punch with drift in the Mould Machining.

Accompanying drawing 4 for join in the Mould Machining mould from towards the time, the situation schematic diagram of a pair of concavo-convex mould wherein.

Below in conjunction with the embodiment accompanying drawing the inventive method is described further.

Present embodiment is the no gap integrally punching mould that designs for the vulcanized rubber set matrix that contains 104 bottle stoppers.Its processing method is as follows:

A, concavo-convex mould adopt mould steel to make, and earlier steel are heat-treated, and make concave template material hardness reach HRC55-58 °, and punch material hardness reaches HRC35-38 °.

Punch location-plate (9) and concave template are fixed together, accurately carry out synchronous processing, make the size in last 104 the punch holes of punch location-plate (9) and mutual orientation distance fully consistent with 104 dies (3) on the concave template by the design size of die;

B, processing 104 monomer punch (7), and make its afterbody than the little 0.005-0.01mm of die (3) internal diameter, and leading section is than the big 0.01-0.02mm of die (3) internal diameter;

C, each monomer punch (7) that will process, base plate (10), location-plate (9), holding pad (4), the upper bolster (8) and the rubber cushion blocks (6) that have installing handle (11) and a guide pin bushing (5) are assembled into patrix, and concave template and the die shoe (1) that is fixed with guide pillar (2) are assembled into counterdie;

D, upper and lower mould is installed on joins mould on the punch press from dashing, and each punch (7) is entered respectively about corresponding each die (3) 5mm, check the matched moulds situation;

E, pull down whole patrix and be inverted on platform,, enlarge 0.02-0.03mm with drift (12) bulging to matched moulds punch devious (7) wherein;

F, with patrix load onto again punch press again row join mould from dashing, be benchmark so with die (3), revise punch (7), repeatedly for several times until the qualified (fit tolerance≤0.005mm) of whole concavo-convex moulds cooperations;

G, repair except that the die-cut burr (13) on each punch (7) at last, promptly finish the processing of this die cutting die.

This die cutting die once just can be finished the whole bottle stoppers on the die-cut whole matrix after being used for producing, and has improved labor productivity greatly, and the die-cut bright and clean no burr of bottle stopper, meets the requirement of medicinal bottle stopper fully.Thereby solved for a long time bottle stopper set matrix and flown into that Punching Technology can only be carried out one by one, labour intensity is big, an inefficient difficult problem.

The inventive method is simple and easy to do, and production cost is low.

Claims (2)

1, a kind of processing method of dies of integrally punching flexible semi-products sheets is characterized in that:

A, punch location-plate and concave template are fixed together, accurately carry out synchronous processing, make the size in each punch hole on the punch location-plate and mutual orientation distance fully consistent with each die on the concave template by the design size of punch;

B, process each monomer punch, and make its afterbody than the little 0.005-0.01mm of die internal diameter, and leading section is than the big 0.01-0.02mm of die internal diameter, and the punch material adopts than the lower material of die material hardness, or makes punch material hardness less than the die material by heat treatment;

C, each monomer punch, base plate, location-plate, holding pad, the upper bolster that has installing handle and guide pin bushing and the rubber cushion blocks that will process are assembled into patrix, and concave template and the die shoe that is fixed with guide pillar are assembled into counterdie;

D, upper and lower mould is installed on joins mould on the punch press from dashing, and punch is entered respectively about corresponding each die 5mm, check the matched moulds situation;

E, pull down whole patrix and be inverted on platform,, enlarge 0.02-0.03mm with the drift bulging to matched moulds punch devious wherein;

F, with patrix load onto again punch press again row join mould from dashing, so be benchmark with the die, revise punch, cooperate qualified (fit tolerance≤0.005mm) until whole concavo-convex moulds for several times repeatedly;

G, repair except that the die-cut burr on each punch at last, promptly finish whole process.

2, by the processing method of the described dies of integrally punching flexible semi-products sheets of claim 1, it is characterized in that the better fit of concavo-convex mould material hardness is: die material hardness is got HRC55-58 °, and punch material hardness is got HRC35-38 °.

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