SU969351A1 - Multiple drawing mill - Google Patents

Description

(54) MULTIPLE-AGENT MILLS

one

The invention relates to the processing of metals by pressure, namely drawing. - The closest to the proposed technical essence and the achieved result is a multi-draw mill containing successive traction drums, fiber holders installed between them with the draws fixed in the collars, and the mechanism for clamping and pushing the end of the wire into the draws 1.

The disadvantage of the known mill is the complexity of its design, due to the fact that in front of each fiber there is a separate mechanism for clamping and pushing the end of the wire.

The purpose of the invention is to simplify the construction of the mill.

The goal is achieved by the fact that in a multiple-draw mill containing successively traction drums mounted between them fiber holders with dies fixed in cages, and a mechanism for clamping and pushing the end of the wire into dies, the cages with wallets are mounted on hinges, the axes of which are parallel to the lines

 -BUT

V

dragging, and the mechanism for clamping and pushing the end of the wire is mounted on the guide support coaxially with the axes of these fibers in their folded position and equipped with a controllable movement drive

5 the length of the camp.

FIG. 1 shows the camp, front view; in fig. 2 shows section A-A in FIG. one; in fig. 3 - fiber holder with a fiber in the folded down position with a mechanism for, Q pressing and pushing the wire; in fig. 4 is a section BB in FIG. 3; in fig. 5 shows a section B-B in FIG. 2

The mill contains traction drums 1, fiber holders 2, and a mechanism 3 for clamping and pushing wires (Fig. 1).

15 The fiber holder 2 comprises a housing 4, which is made in one piece with the support 5. A hinged holder 6 with a string 7 rigidly mounted in the holder 6 is installed between the body 4 and the support 5. The holder 2 is hinged 6

2Q is rotatably mounted on the hinge 8. In the walls of the housing 4 and the stop 5, there are slot-shaped sockets 9 and grooves 10 for passage and fixation of the dies 7 with tucked wire 11 (Fig. 3). The mechanism 3 consists of a body 12 mounted on a guide support 13, the cross section of which has the shape of a dovetail tail, coaxially with the axes of the fiber 7 when the cage 6 is folded down. The mechanism 3 has the ability to move along the support 13 parallel to the line of drawing along the entire length of the mill both directions from the spindle 14. The latter is installed in the bearings 15 and is coupled to the housing 12 of the mechanism 3 by means of a nut 16 fixed on the housing 12 of the mechanism 3 (Fig. 5). The lead screw 14 is driven through a chain transmission 17- from the electric motor 18. The working body of the mechanism 3 consists of wedge jaws 19 moving in wedge guides 20 located on the housing 12 of the mechanism 3. In the wedge jaws 19, grooves 21 are installed in which levers 22, one end of which is fixed in the housing 12 of the mechanism 3. Springs 23 are connected to the levers 22, the second ends of which are attached to the tongue m 24 located on the jaws 19 (Figs. 3 and 4). The mill is refilled as follows. The motor 18 is turned on, which, through the chain drive 17, rotates the spindle screw 14 and moves the mechanism 3 along the guide support 13 by means of a nut 16 which is fixed to it, rigidly fixed on the body 12 of the mechanism 3, and the leftmost position (Fig. 1). Then, the holder 6 of the first fiber-bearing device 2 is folded with the wire 7 rigidly fixed on it 7. Wire 11 is fed from an unwinding device (not shown) and is filled between the wedge jaws 19. Under pressure is brought into working position, the pointed end of the wire 11 is inserted into the charging jaws (not are shown) of the drum 1, the drum 1 is driven and 5-10 turns of wire are wound onto it. Then the ferrule 6 is folded with the die 7, the ferrule 6 with the rail 7 is turned on at the next fiber holder 2, the drive 3 is activated and fed to the die 7, after which the entire operation of pressing the wire end into the wire is repeated again. Due to the fact that the mill is equipped with a movable clamping mechanism and pushing the wire into the dies mounted on a guide support that can move along it parallel to the line of drawing along the entire length of the mill in both directions, the design of the mill is simplified while maintaining its previous dimensions, is easier and easily mechanized the process of refilling the wire in the dies. This is especially effective for multiple high-strength wire drawing mills. The economic effect from the use of the invention is obtained by eliminating the manual auxiliary time for servicing the drawing mill, mechanizing labor-intensive operations, increasing productivity and simplifying the mill design and will be about 100 thousand rubles. for one camp per year. Formula iZobrteni Stan, repeated drawing, sodersrig .2.

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Claims (1)

The formula of the invention of the Stan, repeated drawing, content969351 19 I 969351 L-l figure 2. 969351 fig.Z 969351 fig.CV - B vernugggo