Short screw connected expansion ring type fixed dummy block
A technology of extrusion pads and expansion rings, which is applied in the direction of metal extrusion, pressure head/punch rod, metal processing equipment, etc., can solve the problems of inconvenient installation and disassembly, short service life, unreasonable structure, etc., and achieve easy disassembly , long service life and reasonable structure
Active Publication Date: 2013-01-16
TAIYUAN HEAVY IND
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Problems solved by technology
[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a short-screw-connected expansion ring fixed extrusion pad, which not only cancels the gasket circulation system compared with the traditional movable extrusion pad, but also simplifies the operation process of the extrusion machine , reduce the non-extrusion cycle time, and solve the problems of the prior art expansion ring fixed extrusion pad, unreasonable structure, inconvenient installation and disassembly, and short service life
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[0023] Such as figure 2 , 3 As shown, an expansion ring type fixed extrusion pad connected by a short screw rod is composed of a conical pad 1, an expansion ring 2, a connecting body 3, a pressure sleeve 4, a double-headed short screw 5, a large ring plate 6, and a small ring plate 7 , Set screw 8, A pin 9, B pin 10, C pin 11, positioning screw 12, center push rod 13, nut 14, baffle plate 15, bolt 16, extrusion rod 17. The conical pad 1 and the connecting body 3 are connected at the central part by a central mandrel 13, and the outer conical surface of the conical pad 1 matches the inner conical surface of the expansion ring 2, and the expansion ring 2 Located outside the connecting body 3, it is connected to the connecting body 3 through the step 2-1 at the end of the expander 2, and the connecting body 3 and the extruding rod 17 are connected by a double-ended short screw 5. The advantages of short screw connection are simple structure, convenient installation and disasse...
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The invention discloses a short screw connected expansion ring type fixed dummy block which relates to aluminum extruders. Through the invention, the problems such as unreasonable structure, inconvenient mounting and dismounting and short service life of the expansion ring type fixed dummy blocks in the prior art are solved. In the invention, a conical pad is connected with an extrusion stem through a connector; an expansion ring is located outside the connector and connected with the connector through a step at the tail part of the expansion ring; the inner conical surface of the expansion ring is matched with the outer conical surface of the conical pad; and a pressing sleeve is arranged between the expansion ring and the extrusion stem. The short screw connected expansion ring type fixed dummy block is characterized in that the connector and the conical pad are connected at the centers by a center ejector pin; the connector and the extrusion stem are connected by a short double-head screw; and a large ring plate and a small ring plate are arranged between the extrusion stem and the pressing sleeve as well as between the extrusion stem and the connector. The short screw connected expansion ring type fixed dummy block is especially suitable for the aluminum extruders with front feeding structures and has the advantages of being simple and reasonable in structure, simple and convenient for mounting and dismounting, long in service life, high in production efficiency and the like.
Description
technical field [0001] The invention relates to an extrusion tool for an aluminum extrusion machine, in particular to a fixed extrusion pad for an aluminum extrusion machine. Background technique [0002] In a traditional aluminum extrusion machine, generally 2 to 3 movable extrusion pads are used at the same time to replace the work in turn, and its transmission mechanism and residual material separation device are very complicated and prone to failure. In order to overcome the above shortcomings, at present, fixed extrusion pads have been widely used on aluminum extrusion machines, that is, the extrusion pads are fixed on the extrusion rods, and advance and retreat together with the extrusion rods, eliminating the need for residual material separation equipment and extrusion pads. The conveying device shortens the non-extrusion time of the aluminum extrusion machine. [0003] CN1293956C discloses "A kind of expansion ring type fixed extrusion pad for aluminum extrusion ma...
Claims
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IPC IPC(8): B21C26/00
Inventor 赵国栋魏敬忠魏征宇
Owner TAIYUAN HEAVY IND