JPS6268646A - Opposed type running press device - Google Patents

Abstract

PURPOSE:To improve production efficiency by providing a metallic die for executing a reciprocating motion in the orthogonal direction, in the longitudinal direction of a billet, and installing its metallic die to a guide block which executes a reciprocating motion in the longitudinal direction of the billet. CONSTITUTION:A hollow part is provided on a running guide block 21, and also in the longitudinal direction of a billet 1, a slide 25 being slidable in the orthogonal direction is fitted. The slide 25 is provided with a protective plate 27 and a seat 28 against the side of a screw shaft 19, and also a pressure receiver 29 is fitted to the tip of the shaft 19. A connecting rod 15 which is fitted to an eccentric part executes a reciprocating motion of approach and separation against the billet, by rotation of a crank shaft 7. In such a case, the guide block 21 executes a reciprocating motion in the longitudinal direction of the billet 1, a metallic die 26 turns synchronously with a feed speed of the billet 1, and a rolling down forming is executed. According to this method, a stable press work can be executed, and the production efficiency is improved remarkably.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an opposed running press device that makes it possible to improve production efficiency.

[Prior Art] A counter-type press is known as one of the billet forming apparatuses for shaping steel billets.

[Problems to be solved by the invention] However, in the above-mentioned opposed type press, the die that partially reduces the steel billet simply repeats approaching and separating movements, so that the steel billet after being rolled is The steel billet is repeatedly fed and stopped so that its position is changed by a separate feeding device, which adds large accelerations and decelerations to the feeding device, shortening the service life and causing poor work efficiency.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide an opposed running press device that significantly improves production efficiency.

[Means for Solving the Problems] In the present invention, a mold that can reciprocate in a direction perpendicular to the longitudinal direction of a steel billet is attached to a guide block that can reciprocate in the longitudinal direction of the steel billet. It has become a groove.

[Operation] The steel billet and the mold move in synchronization, and the steel billet is rolled.

[Example] Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.

1 to 3 show an embodiment of the present invention.

A housing 2 is erected on both sides of the steel slab 1 so as to sandwich the steel slab 1, and the housing 20) is perpendicular to the longitudinal direction of the steel slab 1 so as to connect the left and right housings 2 at the front and rear sides of the steel slab 1 in the longitudinal direction. A housing 3 extending in the direction is provided, and the housings 2 and 3 are fastened together with tie bolts 4 and nuts 5 to form an integral structure.

Bearings 6 are fitted into the upper and lower parts of the housing 2, a vertically oriented crankshaft 7 is rotatably supported by the bearings 6, a gear 8 is fixed to the upper end of the crankshaft 7, and a gear 8 is fixed to the upper end of the crankshaft 7 at a required position on both sides of the steel piece 1. The output shaft of the electric motor 9 arranged in the bevel gear 10.11
It is connected to the input shaft of a speed reducer 13 having a pinion 12, and the pinion 12 is meshed with the gear 8, so that the left and right speed reduction @1
3 are connected by an equalizer shaft 14 so that the two crankshafts 7 rotate synchronously.

A connecting rod 15 extending toward the steel piece 1 is fitted into the eccentric portion 7a of the crankshaft 7, and a worm wheel 16 which is rotationally driven by a worm 17 and rotated by 1q is fitted into the hollow portion of the connecting rod 15. At the same time, the nut 18 is fitted and fixed, and the worm wheel 1
The screw shaft 19 which can be rotated together with the worm wheel 16 by the rotation of the worm wheel 16
The screw shaft 19 is inserted into the hollow part, the male threaded part of the screw shaft 19 is screwed into the female threaded part of the nut 18, and the screw shaft 19 is rotated by the worm wheel 16 to move forward and backward in the axial direction to approach the steel piece 1. Make it possible for them to defect.

A guide member 20 extending in the longitudinal direction of the steel piece 1 is fixed to the window portion 3a of the housing 3, and a traveling guide block 21 that can reciprocate in the longitudinal direction of the steel piece 1 is fitted to the guide member 20. Then, the traveling guide block 21 comes into contact with the side surface of the guide member 20 and the traveling guide block 21
A vertical guide roller 2 that can be rolled by the movement of
2, and the bracket 23 is protruded from one of the two housings 3, and the bracket 2
3 is a feeding cylinder 2 whose axis extends in the longitudinal direction of the steel billet 1;
4 is arranged, and the piston rod 2 of the feed cylinder 24 is
The tip of 4a is connected to the traveling guide block 21.

A hollow portion penetrating the traveling guide block 21 in a direction perpendicular to the longitudinal direction of the steel piece 1 is provided, and the steel piece 1 is inserted into the hollow portion.
A slide 25 that can be slid in a direction perpendicular to the longitudinal direction is fitted, a mold 26 for press-forming the steel piece 1 is removably attached to the slide 25, and A hollow portion opened toward the screw shaft 19 side is fitted with a protective plate 27 and a seat 28 for receiving the impact during compression molding, and is integrally attached to the tip of the screw shaft 19. A fixed spherical or semicylindrical pressure receiver 29 is rotatably fitted into the seat 28.

Attach frames 30 and 31 to the upper and lower parts of the housing 3,
Vertical presser roll cylinders 32.33 are disposed on the upper and lower surfaces of the frame 30.31, and the presser roll cylinders 3
Attach the bracket 34.35 to the tip of the piston rod 32a, 33a of 2.33, and attach the bracket 34.35 to the tip of the piston rod 32a, 33a.
Horizontal upper and lower presser rolls 3 for pressing the steel piece 1 from above and below
6.37 is supported rotatably.

In addition, numeral 38 in the figure is a stopper that holds down the pressure receiver 29 so that it cannot be handled from the seat 28.

With the above configuration, the worm 17 is driven to rotate the worm wheel 16 during reduction molding. Then, the screw shaft 19 is rotated by the worm wheel 16, and since the screw shaft 19 is screwed onto the nut 18, the screw shaft 19 moves forward and backward in a direction perpendicular to the longitudinal direction of the steel piece 1 while rotating. Therefore, the slide 25 slides against the traveling guide block 21, and the gap between the left and right molds 26 and 26 is adjusted to a predetermined gap corresponding to the width dimension of the steel piece 1. Cylinder 32 for presser roll
．． 33 is activated, the upper press roll 36 is lowered, the upper press roll 37 is raised, and the gap between the upper and lower press rolls 36 and 37 is adjusted.

After the gap between the molds 26 and 26 is adjusted and the steel piece 1 is pressed down by the upper and lower press rolls 36 and 37, the electric motor 9 is driven and the feed cylinder 24 is activated, and the feed device (not shown) is driven. to move the steel piece 1. Then, the gear 8 rotates via the pinion 12 of the reducer 13, the crankshaft 7 rotates due to the rotation of the gear 8, and the connecting rod 15 fitted to the eccentric portion 7a is moved to the steel piece 1 by the rotation of the crankshaft 7. The travel guide block 21 reciprocates in the longitudinal direction of one piece 1 at the same time. Therefore, when viewed from above, the mold 26 rotates in synchronization with the feed rate of the steel billet 1 while drawing an elliptical locus a as shown in FIG. 3, and the steel billet 1 is rolled and formed while moving. .

The feeding speed of the steel billet 1 by the feeding device needs to be synchronized with the speed in the moving direction of the steel billet 1 of the mold 26, but since the mold 26 clamps the rolled special steel billet 1, no special feeding device is provided. Alternatively, the steel piece 1 may be pulled and moved by the mold 26.

As mentioned above, if the steel billet 1 is pressed while being moved,
Production efficiency has improved dramatically, as well as rapid billet feeding.
Since there are no repeated stops, there is no strain on the performance area and stable pressing is possible.

In the embodiments of the present invention, the case where the reduction molding is performed using a crank pressurization method driven by an electric method is explained, but it is also possible to perform the reduction forming using a pressurization method using a hydraulic cylinder supported rotatably, and the movement of the traveling guide block is also possible. In addition to the direct-acting type using a cylinder, the lever mechanism can be driven by an electric motor, and it is also possible to stop the travel guide block and perform rolling forming, without departing from the gist of the present invention. Of course, various changes can be made within the scope.

[Effects of the Invention] According to the opposed running press device of the present invention, reduction molding can be carried out while moving the steel billet and the mold in synchronization, so that it can have an excellent effect of significantly improving production efficiency.

[Brief explanation of drawings]

FIG. 1 is an explanatory front view of one embodiment of the present invention, FIG. 2 is a partially cutaway plan view of FIG. 1, and FIG. 3 is an explanatory diagram of the movement locus of the mold during compression molding. In the figure, 1 is a steel piece, 7 is a crankshaft, 15 is a connecting rod, 21 is a traveling guide block, and 24 is a feed shaft 1.
36 is an upper presser roll, and 37 is an upper presser roll.

Claims (1)

[Claims] 1) An opposed running press device characterized in that a mold that can reciprocate in a direction perpendicular to the longitudinal direction of the steel billet is attached to a guide block that can reciprocate in the longitudinal direction of the steel billet.