CN203227724U

CN203227724U - Punching mould

Info

Publication number: CN203227724U
Application number: CN 201320184467
Authority: CN
Inventors: 陆再炎; 刘冬; 彭文涛
Original assignee: Wuhan Guoyu Science & Technology Development Co Ltd
Current assignee: Wuhan Guoyu Science & Technology Development Co Ltd
Priority date: 2013-04-12
Filing date: 2013-04-12
Publication date: 2013-10-09
Anticipated expiration: 2023-04-12

Abstract

The utility model discloses a punching mould which comprises a pressing plate, an upper mould, a lower mould and a punching needle, wherein the punching needle comprises a nail base, a connecting rod and a punching head all of which are connected in sequence; an upper mould punched hole is formed in the upper mould; the nail base is round and has the diameter greater than the inner diameter of the upper mould punched hole; one end of the punching head of the punching needle penetrate the upper mould punched hole; one end of the nail base of the punching needle is compressed on the upper mould by the pressing plate; the lower mould is arranged below the upper mould; the lower mould is provided with a lower mould punched hole at the position corresponding to that of the upper mould punched hole; a blanking hole communicated with the lower mould punched hole is formed in the lower mould. An upper mould wedged hole is formed in the upper mould, and a lower mould wedged hole with the position corresponding to that of the upper mould wedged hole is formed in the lower mould. The punching mould has a simple structure and is convenient to use; the punching head is replaced conveniently, so that maintenance cost is reduced; the upper mould wedged hole and the lower mould wedged hole guarantee the alignment of the upper mould and the lower mould, so that damage of the punching head in the punching process is avoided.

Description

A kind of punching die

Technical field

The utility model relates to the machine die field, more specifically relates to a kind of punching die, is applicable to the sieve plate punching of sieve plate type nitric acid absorber.

Background technology

At present, sieve tray is a kind of tower tray that structure is the simplest, cost is the most cheap, compares with bubble cap tray, and its production capacity is big, the plate efficiency height, and fluid resistance is little, and the cost cost is low, uses more aborning.The punching efficient of the sieve plate in the existing nitric acid tower is low, and processing is inconvenient, and red needle is difficult for changing, cause the sieve plate processing cost of nitric acid tower to increase, and sieve aperture is vertical through hole, and the sieve aperture bottom has a small amount of burr can cause producing the gas bias current when air-flow passes through sieve aperture, reduces plate efficiency.

The utility model content

The purpose of this utility model is the problems referred to above that are at the prior art existence, and a kind of punching die is provided, and is simple in structure, easy to use, can carry out punching fast and effectively, and drift is convenient for changing.Guarantee the alignment of mould up and down by last die wedge hole and following die wedge hole simultaneously, avoid the breaking-up of drift in the punch process.

A kind of punching die, it is characterized in that, comprise pressing plate, upper die and lower die and red needle, red needle comprises nail seat, connecting rod and the drift that connects successively, offer the patrix punching on the patrix, nail seat is that circle and diameter are greater than patrix punching internal diameter, drift one end of red needle passes the patrix punching, pressing plate is pressed on nail seat one end of red needle on the patrix, counterdie is arranged on the patrix below, offer the counterdie punching corresponding with the upper punch hole site on the counterdie, also offer the material-dropping hole that is communicated with the counterdie punching on the counterdie.

Offer the die wedge hole on the aforesaid patrix, offer the following die wedge hole corresponding with last die wedge hole site on the counterdie.

The utility model compared with prior art has the following advantages:

1, simple in structure, easy to use;

2, drift is convenient for changing, and reduces maintenance cost;

3, guarantee the alignment of mould up and down by last die wedge hole and following die wedge hole, avoid the breaking-up of drift in the punch process.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of drift of the present utility model;

Fig. 3 is the structural representation of patrix of the present utility model;

Fig. 4 is the schematic top plan view of patrix of the present utility model;

Fig. 5 is the structural representation of counterdie of the present utility model;

Fig. 6 is the elevational schematic view of counterdie of the present utility model.

Among the figure: the 1-pressing plate; The 2-patrix; The 3-counterdie; The 4-red needle; The 5-work piece; The punching of 201-patrix; 202-patrix fixing hole; The last die wedge of 203-hole; The punching of 301-counterdie; The 302-material-dropping hole; 303-counterdie fixing hole; Die wedge hole under the 304-; 401-follows closely seat; The 402-connecting rod; The 403-drift.

The specific embodiment

Below in conjunction with accompanying drawing the technical solution of the utility model is described in further detail.

Embodiment 1

As Fig. 1 ~ shown in Figure 6, a kind of punching die, it is characterized in that, comprise pressing plate 1, patrix 2, counterdie 3 and red needle 4, red needle 4 comprises the nail seat 401 that connects successively, connecting rod 402 and drift 403, offer patrix punching 201 on the patrix 2, nail seat 401 is that circle and diameter are greater than patrix punching 201 internal diameters, drift one end of red needle 4 passes patrix punching 201, pressing plate 1 is pressed on nail seat one end of red needle 4 on the patrix 2, counterdie 3 is arranged on patrix 2 belows, offers the counterdie punching 301 corresponding with patrix punching 201 positions on the counterdie 3, also offers the material-dropping hole that is communicated with counterdie punching 301 on the counterdie 3.Offer die wedge hole 203 on the patrix 2, offer the following die wedge hole 304 corresponding with 203 positions, last die wedge hole on the counterdie 3.

When work, patrix 2 is placed on the top of counterdie 3, patrix 2 is fixed on be used to the pressing piece that impulse force is provided by patrix fixing hole 202, counterdie 3 is fixed on the platform by counterdie fixing hole 303, offer patrix punching 201 on the patrix 2, nail seat 401 diameters are greater than the internal diameter of patrix punching 201, and the internal diameter of the diameter of connecting rod 402 and patrix punching 201 is adaptive, the diameter of drift 403 is decided according to the size of actual machining hole smaller or equal to the diameter of connecting rod 402.Red needle 4 is passed patrix punching 201, is pressed abd fixed on the patrix 2 by the nail seat 401 of pressing plate 1 with red needle 4 simultaneously.

Position corresponding to patrix punching 201 on the counterdie 3 is provided with counterdie punching 301, and the particle after the punching is for convenience discharged, and counterdie punching 301 belows are provided with the material-dropping hole 302 that is communicated with its counterdie punching 301, and material-dropping hole 302 internal diameters are greater than counterdie punching 301 internal diameters.

For preventing patrix 2 and counterdie 3 dislocation, cause drift 4 and counterdie punching 301 positions not corresponding, thereby make drift 4 when punching, rupture.Offer die wedge hole 203 on the patrix 2, counterdie 3 corresponding positions of going up die wedge hole 203 offer down die wedge hole 304.Before punching, insert the check and correction chocks in following die wedge hole 304 earlier, depress patrix 2, see that whether the check and correction chock can be inserted in the die wedge hole 203, if can insert, shows that then patrix punching 201 is consistent with the lengthwise position of counterdie punching 301; If can not insert, then adjust the position of patrix 2 and counterdie 3, finally make patrix punching 201 consistent with the lengthwise position of counterdie punching 301.

Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Claims

1. punching die, it is characterized in that, comprise pressing plate (1), patrix (2), counterdie (3) and red needle (4), red needle (4) comprises the nail seat (401) that connects successively, connecting rod (402) and drift (403), offer patrix punching (201) on the patrix (2), nail seat (401) is that circle and diameter are greater than patrix punching (201) internal diameter, drift one end of red needle (4) passes patrix punching (201), pressing plate (1) is pressed on nail seat one end of red needle (4) on the patrix (2), counterdie (3) is arranged on patrix (2) below, offer the counterdie punching (301) corresponding with patrix punching (201) position on the counterdie (3), also offer the material-dropping hole that is communicated with counterdie punching (301) on the counterdie (3).

2. a kind of punching die according to claim 1 is characterized in that, offers die wedge hole (203) on the described patrix (2), offers the following die wedge hole (304) corresponding with position, last die wedge hole (203) on the counterdie (3).