CN213829286U

CN213829286U - Long-life pore punching die

Info

Publication number: CN213829286U
Application number: CN202022669787.4U
Authority: CN
Inventors: 关世强
Original assignee: Nanjing Bangde Electronic Technology Co ltd
Current assignee: Nanjing Bangde Electronic Technology Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-07-30
Anticipated expiration: 2030-11-18

Abstract

The utility model relates to a mould discloses a high life pore cut-out press, including movable mould and cover half, be provided with a plurality of towards needles on the terminal surface under the movable mould, be provided with a plurality of benevolence on the cover half up end, mould benevolence both sides correspond respectively and are provided with first punching groove and second punching groove, first punching groove and second punching groove cooperation between two adjacent in a plurality of benevolence are constituteed and are punched a hole that corresponds and the adaptation towards the needle position, first punching groove and second punching groove all include the last fracture groove of intercommunication and deviate from the groove down, the medial surface leanin and inclination of going up the fracture groove are 0.011, the medial surface leanin and the angle that inclination was greater than the medial surface leanin of going up the fracture groove down. The mode of the cavity abdicating, inclining and slotting shortens the contact distance and reduces the resistance of waste materials, thereby better protecting the thin punch; meanwhile, the use strength of the die core is ensured, and the service life of the die core is prolonged; the cleaning is simple; the mould core has simple machining mode and low cost.

Description

Long-life pore punching die

Technical Field

The utility model relates to a cut-out press, in particular to pore cut-out press of high life.

Background

The fine hole punching is a difficulty in the punching process (fine hole punching refers to the condition that the size of the outer shape of a punch in the X or Y direction is less than or equal to 0.5mm, and the thickness of a processed material is less than or equal to the minimum size of the outer shape of the punch), and because the punch is too thin and has insufficient strength, the punch is broken frequently, so that the quality of a product is reduced and the cost is increased; the traditional lower die cutting edge is made into a fully inclined shape, after the processing time is long, the burr of the waste material is gradually increased and the resistance clamped in the die core is also increased in the continuous punching production process, and when the resistance is greater than the strength of the thin punch, the thin punch is broken; the difficulty of cleaning the punched hole in the die core is high.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a pore cut-out press of high life.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a high life pore cut-out press, includes movable mould and cover half, be provided with a plurality of towards needles on the terminal surface under the movable mould, be provided with a plurality of benevolence on the cover half up end, mould benevolence both sides correspond respectively and are provided with first punching groove and second punching groove, first punching groove and second punching groove cooperation between two adjacent in a plurality of benevolence is constituteed and is punched a hole that the needle position corresponds and the adaptation, first punching groove and second punching groove all include the last fracture groove of intercommunication and deviate from the groove down, the medial surface leanin and the inclination of going up the fracture groove are 0.011, the medial surface leanin and the inclination of taking off the groove down are greater than the angle of the medial surface leanin of going up the fracture groove.

Further, the method comprises the following steps: the inner side surface of the lower stripping groove is inclined inwards, and the range of the inclination angle is 5-7 degrees.

Further, the method comprises the following steps: the vertical height of the upper punching groove is 1.5 mm.

The utility model has the advantages that: the mode of the cavity abdicating, inclining and slotting shortens the contact distance and reduces the resistance of waste materials, thereby better protecting the thin punch; meanwhile, the use strength of the die core is ensured, and the service life of the die core is prolonged; the cleaning is simple; the mould core has simple machining mode and low cost.

Drawings

FIG. 1 is a partial front view of the present invention;

FIG. 2 is a front view of the mold core;

FIG. 3 is a sectional view of the mold core.

Labeled as: the punching pin comprises a punching pin 100, a die core 200, a first punching groove 201, a second punching groove 202, an upper breaking groove 210, a lower stripping groove 220 and a punching hole 300.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

The long-service-life pore punching die comprises a movable die and a fixed die, wherein a plurality of punching needles 100 are arranged on the lower end face of the movable die, a plurality of die cores 200 are arranged on the upper end face of the fixed die, a first punching groove 201 and a second punching groove 202 are correspondingly arranged on two sides of each die core 200 respectively, the first punching groove 201 and the second punching groove 202 between two adjacent die cores 200 are matched to form a punching hole 300 corresponding to and matched with the punching needle 100 in position, each first punching groove 201 and each second punching groove 202 comprise an upper punching groove 210 and a lower stripping groove 220 which are communicated, the inner side face of each upper punching groove 210 is inwards inclined, the inclination angle of each inner side face of each lower stripping groove 220 is 0.011 degrees, and the inclination angle of each inner side face of each lower stripping groove 220 is inwards inclined and is larger than the inward inclination angle of the inner side face of each upper punching groove 210. In the specific implementation, the punching hole 300 is formed by combining the first punching groove 201 and the second punching groove 202 on two adjacent die cores 200, and only the first punching groove 201 and the second punching groove 202 need to be disassembled and cleaned during cleaning, so that the cleaning is periodically disassembled after the use is finished, the slope grooving mode is avoided, the contact distance is shortened, the resistance of waste is reduced, and the thin punch is better protected; meanwhile, the use strength of the die core is ensured, and the service life of the die core is prolonged; the cleaning is simple; the mold insert 200 has a simple machining method and low cost.

On the basis of the above, as shown in fig. 3, the inner side surface of the lower escape slot 220 is inclined inward at an angle ranging from 5 to 7 °. The processing is simple, and the practicality is strong.

On the basis of the above, as shown in fig. 3, the height of the upper punching groove 210 in the vertical direction is 1.5 mm. The structure is firm, the processing is simple, the friction resistance of the improved mold core is reduced, the continuous production can be carried out for more than 300 ten thousands of times, the requirement of the continuous production can be met, and the improvement is improved by more than 5 times compared with the prior art.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a high life pore cut-out press, includes movable mould and cover half, its characterized in that: be provided with a plurality of towards needle (100) on the terminal surface under the movable mould, be provided with a plurality of benevolence (200) on the cover half up end, mould benevolence (200) both sides correspond respectively and are provided with first punching groove (201) and second punching groove (202), first punching groove (201) and second punching groove (202) cooperation between two adjacent in a plurality of benevolence (200) are constituteed and are corresponded and the punching a hole (300) of adaptation with towards needle (100) position, first punching groove (201) and second punching groove (202) are all including last fracture groove (210) and lower groove (220) of releasing of intercommunication, the medial surface leanin and the inclination of going up fracture groove (210) are 0.011, the medial surface leanin and the inclination of lower groove (220) of releasing are greater than the angle that the medial surface leanin of going up fracture groove (210).

2. The long-life fine-hole punching die of claim 1, wherein: the inner side surface of the lower stripping groove (220) is inclined inwards, and the range of the inclination angle is 5-7 degrees.

3. The long-life fine-hole punching die of claim 1, wherein: the height of the upper cutting groove (210) in the vertical direction is 1.5 mm.