CN201227672Y

CN201227672Y - Pneumatic composite mould for battle cap drawing

Info

Publication number: CN201227672Y
Application number: CNU2008200252661U
Authority: CN
Inventors: 李波; 孙孝波
Original assignee: Shandong Lipeng Co Ltd
Current assignee: Shandong Lipeng Co Ltd
Priority date: 2008-07-07
Filing date: 2008-07-07
Publication date: 2009-04-29
Anticipated expiration: 2018-07-07

Abstract

The utility model provides a pneumatic compound die used for the drawing of a bottle cap. The die comprises a lower template, a lower cylinder body which is fixedly installed on the lower template, a drawing punch die, a shank, and a blanking punch and a core shaft which are fixedly installed on the shank. A secondary material pressing ring, a secondary core, and a blanking ring are fixedly installed on the core shaft; a blanking die is fixedly installed on the lower cylinder body; a primary material pressing ring is installed between the blanking punch and the drawing punch die; a lower piston is arranged below the primary material pressing ring; a upper piston is arranged on between the blanking punch and core shaft, namely one end surface of the secondary material pressing ring. Because the upper the lower parts of the compound die are respectively connected with gas source pressure bags and the volume of the pressure bags are larger than that of the cylinder of the die, the pressure change caused by the compression of gas can be ignored. Therefore, the stable drawing blank holding force can be obtained during the drawing process of the die.

Description

The pneumatic composite die of a kind of bottle cap pull and stretch

Technical field

The utility model belongs to mechanical field, relates in particular to the pneumatic composite die of a kind of bottle cap pull and stretch.

Background technology

In industry production, the moulding of aluminium matter bottle cap generally will be through pull and stretch repeatedly, general each is carried out once drawing on common punch press, need many molds just can finish moulding, " 2008200202249 " patent application provides a kind of secondary deep-drawing composite mold, the problems referred to above have been solved, need to adopt just attainable defective of two ejector half stamping machines but exist, in addition, because the die drawn pressure-pad-force is all provided by rubber blanket or stage clip, tensile force can sharply increase in the drawing process, increased mould unnecessary deformation amount, made the stretching quality low, reduction die life, the expense height, production efficiency is low.

Summary of the invention

The utility model provides a kind of bottle cap pull and stretch pneumatic composite die, solved in the background technology and provide the die drawn pressure-pad-force to the specific (special) requirements of machining tool with by rubber blanket or stage clip, the stretching quality is low, reduction die life, the expense height, the shortcoming that production efficiency is low.

The technical solution of the utility model is achieved in that the pneumatic composite die of a kind of bottle cap pull and stretch, comprise lower bolster, be fixedly mounted on the concavo-convex mould of therapeutic method to keep the adverse qi flowing downward cylinder body, pull and stretch on the lower bolster, die shank, be fixedly mounted on blanking punch and mandrel on the die shank, fixedly be equipped with secondary binder ring, secondary fuse, blank ring on the mandrel, fixedly be equipped with blanking die on the therapeutic method to keep the adverse qi flowing downward cylinder body, establish one time the binder ring between the concavo-convex mould of blanking die and pull and stretch, piston is set in binder ring below, between blanking punch and the mandrel, secondary binder ring one end establishes upper piston;

Establish passage on the die shank, establish another passage on the lower bolster, two passages link to each other with source of the gas through the air pressure bag respectively;

Establish discharger and spring on the blanking punch.

The beneficial effects of the utility model are: the utility model upper and lower part is connected to source of the gas air pressure bag respectively, because the capacity of air pressure bag is far longer than the cylinder capacity of mould own, so the air pressure change that the compression of gas brings in drawing process can be ignored, so this mould can obtain stable pull and stretch pressure-pad-force in drawing process.This mould is used for putting capable reverse drawing moulding into sheet material is counter, greatly reduces the damaged probability of bottle cap in drawing process; If bottle cap needs twice drawing and forming, get final product once drawing and forming by this mould, heightened productivity ratio greatly, reduced production cost.

Description of drawings

Fig. 1 is a generalized section of the present utility model.

Part explanation: 1, lower bolster, 2, therapeutic method to keep the adverse qi flowing downward cylinder body, 3, the concavo-convex mould of pull and stretch, 4, lower piston, 5, blanking die, 6, binder rings, 7, discharger, 8, blanking punch, 9, the secondary fuse, 10, secondary binder ring, 11, the blank ring, 12, upper piston, 13, mandrel, 14, die shank, 15, first passage, 16, second passage, 17, spring.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further described: the pneumatic composite die of a kind of bottle cap pull and stretch, comprise lower bolster 1, be fixedly mounted on the therapeutic method to keep the adverse qi flowing downward cylinder body 2 on the template 1, the concavo-convex mould 3 of pull and stretch, die shank 14, die shank 14 fixedly is equipped with blanking punch 8 and mandrel 13, fixedly be equipped with secondary binder ring 10 on the mandrel 13, the secondary fuse, blank ring 11, establish discharger 7 and spring 17 on the blanking punch 8, fixedly be equipped with blanking die 5 on the therapeutic method to keep the adverse qi flowing downward cylinder body 2, establish binder ring 6 one time between the concavo-convex mould 3 of blanking die 5 and pull and stretch, one time piston 4 is set in binder ring 6 belows, between blanking punch 8 and the mandrel 13, upper piston 12 is established in secondary binder ring one end, establish first passage 15 on the die shank 14, establishing 16, two passages of second passage on the lower bolster 1 links to each other with source of the gas through the air pressure bag respectively.

Upper die parts such as lathe slide block drive blanking punch 8 are descending, at first finish the material blanking; Blanking punch 8 continues descendingly to compress binder ring 6 to promote lower pistons 4 descending, finishing once drawing to certain position moves, and then it is up that Gu Ding pull and stretch punch-die 3 begins to promote secondary binder ring 10, finish secondary deep-drawing moulding action and blank action to certain position, punching course pull and stretch action is so far finished.

After punching course action was finished, it is up that and then the lathe slide block drives compound die top, and under the effect of air pressure, it is up that lower piston 4 promotes a binder ring 6, and leftover bits and pieces flanging ring is released mould, by gas blow pipe with its mould that blows off; Simultaneously discharger 7 pushes away blanking punch 8 with sheet material under the effect of spring 17, finishes the discharging action and resets; Under the effect of air pressure, upper piston 12 promotes 10 times horizontal resets of secondary binder ring.So far whole punching press action is finished, and the finished product lid is left on 3 li of pull and stretch punch-dies temporarily, will be pushed out when next punching press is moved.

Claims

1, the pneumatic composite die of a kind of bottle cap pull and stretch, comprise lower bolster (1), be fixedly mounted on the therapeutic method to keep the adverse qi flowing downward cylinder body (2) on the lower bolster (1), the concavo-convex mould of pull and stretch (3), die shank (14), be fixedly mounted on blanking punch (8) and mandrel (13) on the die shank (14), mandrel (13) is gone up and fixedly is equipped with secondary binder ring (10), secondary fuse (9), blank ring (11), it is characterized in that therapeutic method to keep the adverse qi flowing downward cylinder body (2) upward fixedly is equipped with blanking die (5), establish a binder ring (6) between blanking die (5) and the concavo-convex mould of pull and stretch (3), piston (4) is set in a binder ring (6) below, between blanking punch (8) and the mandrel (13), upper piston (12) is established in secondary binder ring (10) one ends.

2, the pneumatic composite die of a kind of bottle cap pull and stretch according to claim 1, it is characterized in that establishing on the die shank (14) first passage (15), establish second passage (16) on the lower bolster (1), first passage (15), second passage (16) link to each other with source of the gas through the air pressure bag respectively.

3, the pneumatic composite die of a kind of bottle cap pull and stretch according to claim 1 and 2 is characterized in that establishing on the blanking punch (8) discharger (7) and spring (17).