CN102275269A

CN102275269A - Long-distance core-pulling structure for round tubular die

Info

Publication number: CN102275269A
Application number: CN2011102338220A
Authority: CN
Inventors: 张卫
Original assignee: Vanguard Wuxi Science and Technology Co Ltd
Current assignee: Vanguard Wuxi Science and Technology Co Ltd
Priority date: 2011-08-16
Filing date: 2011-08-16
Publication date: 2011-12-14

Abstract

The invention provides a long-distance core-pulling structure for a round tubular die, which makes a line insert not interfered with an ejection pin and makes the die have long service life. The long-distance core-pulling structure comprises a front die, a rear die, a front die core, a rear die core and the line insert, wherein a hollow cavity enclosed by the front die core and the rear die core is a cavity; and one end of the line insert is positioned in the cavity. The long-distance core-pulling structure is characterized by also comprising a movable insert and a movable insert supporting ejection pin, wherein the movable insert is positioned in a movable insert assembly slot enclosed by the front die core and the rear die core; the movable insert assembly slot is positioned below one side of the cavity; the line insert passes through both lateral ends of the movable insert; the other end of the line insert is clamped in a vertical linear guide rail slot in an oil cylinder core-pulling line; a horizontally-moving oil cylinder is connected outside the oil cylinder core-pulling line far away from the cavity; the bottom of the movable insert is supported on the movable insert supporting ejection pin; and the bottom of the movable insert supporting ejection pin is tightly connected with a combination of a surface pin plate and a bottom pin plate.

Description

The length of pipe shape mould is apart from loosing core structure

Technical field

The present invention relates to the mould structure technical field, be specially the long of pipe shape mould apart from loosing core structure.

Background technology

The length of existing pipe shape mould is apart from loosing core structure, and its row position mold insert and thimble often interfere and mold damage, makes that the life-span of mould is short.

Summary of the invention

The invention provides the long apart from loosing core structure of pipe shape mould, it makes row position mold insert and thimble can not interfere, and makes life span of mold long.

The length of pipe shape mould is apart from loosing core structure, it comprises front mould, back mould, preceding die, back die, row position mold insert, die before described, the cavity that back die surrounded is a die cavity, described row position mold insert one end is positioned at described die cavity, it is characterized in that: it also comprises movable insert, movable insert supporting thimble, described movable insert is positioned at described preceding die, in the movable insert mounting groove that back die surrounded, described movable insert mounting groove is positioned at a side-lower of described die cavity, described row position mold insert runs through the two side ends of described movable insert, the other end of described row position mold insert be installed in the capable position of loose core of oil cylinder vertically in the line slideway groove, the capable position of described loose core of oil cylinder away from the external oil cylinder that moves horizontally of cavity side, the bottom supporting of described movable insert is in described movable insert supporting thimble, and the bottom of described movable insert supporting thimble is fastenedly connected the face needle plate, the combination of end needle plate.

It is further characterized in that: the cross section of described movable insert mounting groove is a convex, the bottom of described movable insert is a boss structure, the boss structure of described movable insert is loaded on the bottom of described movable insert mounting groove, and the height of the boss structure of described movable insert is less than the height of the bottom cell body of described movable insert mounting groove;

Between the top of described movable insert bottom, movable insert supporting thimble support spring is installed.

After adopting structure of the present invention, during die sinking, front mould, preceding die rises, afterwards, the face needle plate, the combination of end needle plate rises, driving movable insert supporting thimble rises, movable insert supporting thimble promotes movable insert and rises, and movable insert drives row position mold insert, product rises, and separates thereby make product finish with the back model cavity, the capable position of loose core of oil cylinder on the mould begins to carry out the level motion of loosing core, product is barred from movable insert near die cavity one side, and row position mold insert is separated with product, and product freely falls, row position mold insert and thimble can not interfere in the whole process, make life span of mold long.

Description of drawings

Fig. 1 is a front view structural representation of the present invention.

The specific embodiment

See Fig. 1, it comprises front mould 1, back mould 2, preceding die 3, back die 4, row position mold insert 5, preceding die 3, the cavity that back die 4 is surrounded is a die cavity, in the die cavity is product 6 to be formed, row position mold insert 5 one ends are positioned at die cavity, it also comprises movable insert 7, movable insert supporting thimble 8, movable insert 7 is positioned at preceding die 3, in the movable insert mounting groove 9 that back die 4 is surrounded, movable insert mounting groove 9 is positioned at a side-lower of die cavity, row position mold insert 5 runs through the two side ends of movable insert 7, the other end of row position mold insert 5 be installed in the capable position 10 of loose core of oil cylinder vertically in line slideway groove 11, not (not drawing among the figure of the capable position 10 of loose core of oil cylinder away from the external oil cylinder that moves horizontally of cavity side, belong to existing mature structure), the bottom supporting of movable insert 7 is in movable insert supporting thimble 8, and the bottom of movable insert supporting thimble 8 is fastenedly connected face needle plate 12, the combination of end needle plate 13.

The cross section of movable insert mounting groove 9 is a convex, the bottom of movable insert 7 is a boss structure, the boss structure of movable insert 7 is loaded on the bottom of movable insert mounting groove 9, and the height of the boss structure of movable insert 7 is less than the height of the bottom cell body of movable insert mounting groove 9;

Between the top of the bottom of movable insert 7, movable insert supporting thimble 8 support spring 14 is installed.

Claims

1. pipe shape mould is long apart from loosing core structure, it comprises front mould, back mould, preceding die, back die, row position mold insert, die before described, the cavity that back die surrounded is a die cavity, described row position mold insert one end is positioned at described die cavity, it is characterized in that: it also comprises movable insert, movable insert supporting thimble, described movable insert is positioned at described preceding die, in the movable insert mounting groove that back die surrounded, described movable insert mounting groove is positioned at a side-lower of described die cavity, described row position mold insert runs through the two side ends of described movable insert, the other end of described row position mold insert be installed in the capable position of loose core of oil cylinder vertically in the line slideway groove, the capable position of described loose core of oil cylinder away from the external oil cylinder that moves horizontally of cavity side, the bottom supporting of described movable insert is in described movable insert supporting thimble, and the bottom of described movable insert supporting thimble is fastenedly connected the face needle plate, the combination of end needle plate.

2. the length of pipe shape mould according to claim 1 is apart from loosing core structure, it is characterized in that: the cross section of described movable insert mounting groove is a convex, the bottom of described movable insert is a boss structure, the boss structure of described movable insert is loaded on the bottom of described movable insert mounting groove, and the height of the boss structure of described movable insert is less than the height of the bottom cell body of described movable insert mounting groove.

3. the length of pipe shape mould according to claim 1 and 2 is characterized in that apart from loosing core structure: between the top of described movable insert bottom, movable insert supporting thimble support spring is installed.