CN201376046Y

CN201376046Y - Pneumatic stretching die

Info

Publication number: CN201376046Y
Application number: CN200920001064U
Authority: CN
Inventors: 荀安清
Original assignee: YANTAI HICAP CLOSURES Co Ltd
Current assignee: HICAP CLOSURES CO Ltd; Shandong Haipu cover making Co.,Ltd.
Priority date: 2008-04-10
Filing date: 2009-01-15
Publication date: 2010-01-06
Anticipated expiration: 2019-01-15

Abstract

The utility model relates to a pneumatic stretching mould comprising a lower die holder, an upper die holder and a knockout rod, wherein a cavity die is fixed on the upper die holder, a swaging ring and a swaging spring are sleeved on the cavity die, an air cylinder is fixed on the lower die holder, a top rod is arranged on the air cylinder, a terrace die holder is fixed on the lower die holder, the upper end of the terrace die holder is fixedly provided with a terrace die, the outer side of the terrace die is provided with an annular swaging sleeve which is pressed on the top rod, and the outer side of the annular swaging sleeve is provided with a cutting ring which is fixed with the lower die holder. The pneumatic stretching die has simple structure, small volume and small occupation space, uses the pressure of compressed air in the air cylinder to press edges of products in the stretching process, has stable edge pressing force, reliable performance and long service life and can easily regulate the edge pressing force by regulating the pressure intensity of the compressed air.

Description

Pneumatic drawing die

Technical field

The utility model relates to a kind of drawing die, relates in particular to a kind of pneumatic drawing die that is used to make lid.

Background technology

The moulding of aluminium matter bottle cap will be passed through one-off drawing, and present most of stamping-out stretching composite die employing all is rubber or spring flanging, the life-span of rubber and spring is short, the pressure-pad-force instability, and adopt the drawing die structure of rubber or spring all complicated, volume is very big, and it is big to take up room, cause dismounting very inconvenient, adjustment is wasted time and energy.

The utility model content

The technical problems to be solved in the utility model provides a kind of simple in structure, dependable performance, the life-span is long, volume is little, it is little to take up room, easy accessibility, can realize quick die change, pressure-pad-force is stable and the convenient pneumatic drawing die of adjusting.

For solving the problems of the technologies described above, the utility model adopts following technical scheme:

A kind of pneumatic drawing die, comprise die shoe, upper bolster and knockout rod, be fixed with die on the upper bolster, be with holding pad and binder spring on the die, be fixed with cylinder on the described die shoe, cylinder is provided with push rod, is fixed with convex mould base on the die shoe, and the upper end and the punch of convex mould base fix, the outside of punch is provided with annular binder cover, annular binder cover is pressed on the push rod, and the outside of annular binder cover is provided with cutting ring, and cutting ring and die shoe fix.

Pneumatic drawing die of the present utility model, the upper surface of wherein said punch and the upper surface of cutting ring are positioned at same horizontal plane.

Pneumatic drawing die of the present utility model, the upper surface of wherein said annular binder cover and the upper surface of cutting ring are positioned at same horizontal plane.

The pneumatic drawing die of the utility model is simple in structure, and volume is little, and it is little to take up room, and can be directly installed on the punch press workbench, easy accessibility, can realize quick die change; It utilizes the pressure of cylinder block compressed air to be implemented in the drawing process flanging to product, and pressure-pad-force is stable, dependable performance, and the life-span is long, but and by just easy adjustment pressure-pad-force of adjustment pressure of compressed air.

Description of drawings

Fig. 1 is the structure cutaway view of the pneumatic drawing die of the utility model;

Fig. 2 is the cutaway view in the utility model course of work.

The specific embodiment

As shown in Figure 1, pneumatic drawing die of the present utility model, comprise die shoe 1, upper bolster 2 and knockout rod 3, the bottom of upper bolster 2 is fixed with die 4 by screw, knockout rod 3 is positioned at upper bolster 2 and die 4, and the top of knockout rod 3 is with material returned spring 13, and the upper end of material returned spring 13 is stuck on the knockout rod 3, the lower end is stuck on the upper bolster 2, and knockout rod 3 can slide up and down in upper bolster 2 and die 4.The lower end of die 4 is with holding pad 5, also is with binder spring 6 on the die 4, and the upper end of binder spring 6 is stuck on the upper bolster 2, and the lower end is stuck on the holding pad 5.Be fixed with ordinary casing 7 on the die shoe 1, ordinary casing 7 is provided with push rod 8.Be fixed with convex mould base 9 on the die shoe 1, the upper end of convex mould base 9 and punch 10 fix by screw.The outside of punch 10 is provided with annular binder cover 11, and annular binder cover 11 directly is pressed on the push rod 8.The outside of annular binder cover 11 is provided with cutting ring 12, and cutting ring 12 is fixed on the upper end of die shoe 1 by screw.For ease of placing aluminium sheet, the upper surface of cutting ring 12, the upper surface of annular binder cover 11 and the upper surface of punch 10 are positioned on the same horizontal plane.

As shown in Figure 1, when using the pneumatic drawing die of the utility model, die shoe 1 is fixed on the punch press workbench 14, upper bolster 2 is fixed on the slider of punch 15, moved back and forth up and down by slider of punch 15 control upper bolsters 2, punch press dnockout rod 16 is used to control knockout rod 3 and moves downward.Ordinary casing 7 required compressed air are provided by air compressor.

The course of work of the pneumatic drawing die of the utility model is as follows: during work, punch press workbench 14 is motionless, slider of punch 15 is done and is pumped, drive upper bolster 2, die 4, holding pad 5 pump, before slider of punch 15 moves downward, aluminium sheet 17 (see figure 1)s are placed on the punch 10, when slider of punch 15 moves downward, upper bolster 2, die 4, holding pad 5 move downward thereupon, die 4 and holding pad 5 are pressed on the aluminium sheet 17 for the treatment of stamping-out, because cutting ring 12 is fixed on the die shoe 1, so holding pad 5 no longer moves downward; Die 4 continues to move downward, itself and cutting ring 12 produce relative motion and aluminium sheet 17 are cut apart with a knife or scissors, simultaneously annular binder cover 11 and push rod 8 also move downward, circular aluminium sheet under the stamping-out is pressed in middle at compressed-air actuated effect lower cavity die 4 and annular binder cover 11, as shown in Figure 2, die 4, annular binder cover 11, push rod 8 move downward together, and punch 10 is to keep motionless, and itself and die 4 interact circular aluminium sheet is drawn into cartridge type bottle cap 18; Slider of punch 15 moves upward again then, upper bolster 2, die 4 and interior cartridge type bottle cap 18 thereof move upward thereupon, also move upward and return back to initial position at compressed-air actuated pressure lower push rod 8 and annular binder cover 11, as shown in Figure 1, upper bolster 2, die 4 and cartridge type bottle cap 18 continue to move upward, knockout rod 3 also moves upward under the effect of material returned spring 13, simultaneously downward pushing cylinder type bottle cap 18, when the upper end for the treatment of knockout rod 3 contacts with punch press dnockout rod 16, slider of punch 15 stop motions, punch press dnockout rod 16 pushes away knockout rod 3 downwards, cartridge type bottle cap 18 is released 4, one circulations of die fully finish.

Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.

Claims

1, a kind of pneumatic drawing die, comprise die shoe (1), upper bolster (2) and knockout rod (3), be fixed with die (4) on the upper bolster (2), be with holding pad (5) and binder spring (6) on the die (4), it is characterized in that: be fixed with cylinder (7) on the described die shoe (1), cylinder (7) is provided with push rod (8), be fixed with convex mould base (9) on the die shoe (1), the upper end of convex mould base (9) and punch (10) fix, the outside of punch (10) is provided with annular binder cover (11), annular binder cover (11) is pressed on the push rod (8), and the outside of annular binder cover (11) is provided with cutting ring (12), and cutting ring (12) fixes with die shoe (1).

2, pneumatic drawing die according to claim 1 is characterized in that: the upper surface of the upper surface of described punch (10) and cutting ring (12) is positioned at same horizontal plane.

3, pneumatic drawing die according to claim 1 and 2 is characterized in that: the upper surface of the upper surface of described annular binder cover (11) and cutting ring (12) is positioned at same horizontal plane.