CN203197089U - Mould with structure for preventing workpiece or scrap from ascending - Google Patents

Mould with structure for preventing workpiece or scrap from ascending Download PDF

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Publication number
CN203197089U
CN203197089U CN 201320169718 CN201320169718U CN203197089U CN 203197089 U CN203197089 U CN 203197089U CN 201320169718 CN201320169718 CN 201320169718 CN 201320169718 U CN201320169718 U CN 201320169718U CN 203197089 U CN203197089 U CN 203197089U
Authority
CN
China
Prior art keywords
mould
punch
spring piece
blanking
spring leaf
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201320169718
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Chinese (zh)
Inventor
张燕琴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Polytechnic
Original Assignee
Dongguan Polytechnic
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan Polytechnic filed Critical Dongguan Polytechnic
Priority to CN 201320169718 priority Critical patent/CN203197089U/en
Application granted granted Critical
Publication of CN203197089U publication Critical patent/CN203197089U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the technical field of stamping moulds, in particular to a mould with a structure for preventing workpieces or scraps from ascending, which comprises a mould base and a convex mould, wherein the front end of the convex mould is provided with a concave pit, a spring piece is fixedly arranged in the concave pit, and at least one part of the spring piece extends out of the front end surface of the convex mould in a free state; during blanking, the convex mould enters a concave mould from top to bottom to finish the blanking; the spring piece is pressed during the blanking, so that the spring piece is always kept aligned with the front end surface of the convex mould; and after the blanking is finished, the convex mould begins to be upwards raised under the driving of the mould base, so that the blanked workpieces or scraps are separated from the convex mould to enter a concave mould opening under the action of the resilience force of the spring piece. Through the mould, the problem of workpiece or scrap ascending in the stamping process is effectively solved, and the structure is simple and reliable.

Description

Has the mould that prevents product or waste material lift structure
Technical field
The utility model relates to the Stamping Die Technology field, and particularly a kind of have a mould that prevents product or waste material lift structure.
Background technology
Mould is formed by each assembling parts, during punching press, stamps out satisfactory metalwork by the upper die and lower die cooperation.
Mould is wanted and can be worked, and the reliability of discharging is very important.Generally speaking, large skeletal waste we can utilize stripper to implement discharging, the fritter product that stamping-out gets off or waste material then utilize Action of Gravity Field that it is fallen down from die, but sometimes also unreliable by Action of Gravity Field, especially in the situation that high speed stamping, owing to reasons such as speed is fast, die point magnetization, may cause product or waste material to rise from the die mouth.If the product or the waste material that rise stick on the punch cutting edge plane, can affect normal operation, when serious even can mold damage and forcing press, therefore to avoid the generation of this phenomenon, the mechanism that prevents reliably product and waste material rising just must be arranged.
At present, when general large part punching, week leftover bits and pieces of material discharging can adopt patrix to install elastic tripper additional, and middle waste material can adopt the knockout rod in the forcing press, for the waste material in the middle of preventing is bonded on the punch, in punch, be provided with two knockout rods, but utilize the knockout rod discharging so that mould structure is complicated, cost rises.And knockout rod is only applicable to the large part of stamping-out, and when at high speed stamping porous finding, the less centre of punch can't arrange knockout rod, therefore is unsuitable for adopting knockout rod to carry out discharging.
The utility model content
The utility model is in order to solve diel when the punching press finding, can't adopt knockout rod to prevent that product or waste material rising from causing product or waste material to stick on the punch cutting edge plane, affect the mould normal operation, even the problem of mold damage, and provide a kind ofly have a mould that prevents product or waste material lift structure.
For reaching above-mentioned functions, the technical scheme that the utility model provides is:
A kind of have a mould that prevents product or waste material lift structure, comprise die holder and punch, the front end of described punch is provided with pit, is fixedly installed spring leaf in the described pit, under free state, described spring leaf has at least a part to stretch out the front end face of described punch.
Preferably, described spring leaf is " second " word shape.
Preferably, to stretch out the height of the front end face of described punch be 1~4mm to described spring leaf.
The beneficial effects of the utility model are: a kind of have a mould that prevents product or waste material lift structure, comprise die holder and punch, the front end of described punch is provided with pit, be fixedly installed spring leaf in the described pit, under free state, described spring leaf has at least a part to stretch out the front end face of described punch; When stamping-out, punch enters die from top to bottom, finish stamping-out, described spring leaf pressurized when stamping-out, therefore keep concordant with the punch front end face all the time, after stamping-out finished, punch began up to lift under the drive of die holder, punch part or waste material separate to enter the die mouth with punch under the effect of spring leaf screen resilience; The utility model has solved the problem that in punching course product or waste material rise effectively, and simple in structure, reliable.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Structural representation when Fig. 2 is the utility model stamping-out.
The specific embodiment
Be further elaborated below in conjunction with accompanying drawing 1 and 2 pairs of the utility model of accompanying drawing:
As shown in Figure 1 have a mould that prevents product or waste material lift structure, comprise die holder 1 and punch 2, punch 2 is fixedly installed on the die holder 1, the front end of punch 2 is provided with pit 21, is fixedly installed spring leaf 3 in the pit 21, in the present embodiment, spring leaf 3 is " second " word shape, one end of spring leaf 3 is fixed in the pit 21 with screw 4, and under free state, spring leaf 3 other ends stretch out the front end face of described punch 2.
The height that spring leaf 3 stretches out the front end face of punch 2 is followed according to the size of stamped part and is selected, when stamped part is larger, the height that stretches out is higher, and for reaching reasonable punching press and discharging effect, spring leaf 3 stretches out the general 1~4mm of selection of height of the front end face of punch 2.
As shown in Figure 2, when stamping-out, punch 2 enters die (not shown among Fig. 2) from top to bottom, the part of exposing punch 2 front end faces at the effect lower spring sheet 3 of the resistance of material 5 is squeezed, and makes spring leaf 3 exposed portions serve retraction, thereby keeps concordant with the front end face of punch 2 all the time, after stamping-out finishes, punch 2 begins up lifting under the drive of die holder 1, punch part or waste material 51 separate to enter die mouth (not shown among Fig. 2) with punch 2 under the effect of spring leaf 3 elastic force.
The above embodiment, it is preferred embodiments of the present utility model, be not to limit practical range of the present utility model, therefore all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify, all should be included in the utility model patent claim.

Claims (3)

1. one kind has the mould that prevents product or waste material lift structure, comprise die holder (1) and punch (2), it is characterized in that: the front end of described punch (2) is provided with pit (21), be fixedly installed spring leaf (3) in the described pit (21), under free state, described spring leaf (3) has at least a part to stretch out the front end face of described punch (2).
2. as claimed in claim 1 have a mould that prevents product or waste material lift structure, and it is characterized in that: described spring leaf (3) is " second " word shape.
3. as claimed in claim 1 or 2 have a mould that prevents product or waste material lift structure, and it is characterized in that: the height that described spring leaf (3) stretches out the front end face of described punch (2) is 1~4mm.
CN 201320169718 2013-04-05 2013-04-05 Mould with structure for preventing workpiece or scrap from ascending Expired - Fee Related CN203197089U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320169718 CN203197089U (en) 2013-04-05 2013-04-05 Mould with structure for preventing workpiece or scrap from ascending

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320169718 CN203197089U (en) 2013-04-05 2013-04-05 Mould with structure for preventing workpiece or scrap from ascending

Publications (1)

Publication Number Publication Date
CN203197089U true CN203197089U (en) 2013-09-18

Family

ID=49141229

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320169718 Expired - Fee Related CN203197089U (en) 2013-04-05 2013-04-05 Mould with structure for preventing workpiece or scrap from ascending

Country Status (1)

Country Link
CN (1) CN203197089U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105170769A (en) * 2015-07-15 2015-12-23 南车株洲电机有限公司 Punched plate manufacturing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105170769A (en) * 2015-07-15 2015-12-23 南车株洲电机有限公司 Punched plate manufacturing device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130918

Termination date: 20140405