JP2858052B2 - A device that supplies rough bolts to a machine that forms with rolling jaws - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for supplying a roughing bolt to a machine for forming by means of a rolling jaw, and more particularly to an apparatus having two slide bars (guide rails) arranged parallel to each other. , These guide rails can be adjusted to the diameter of the coarse bolt, extend obliquely to the horizontal, and these guide rails,
In front of these rail end parts, there is a guide rail, which is operated periodically, for inserting loose coarse bolts into the rolling machine. To a supply device arranged at an acute angle to the feeder.

[0002]

2. Description of the Prior Art Adjusting the guide rail to the diameter of another bolt, in known devices of the kind described above, is time consuming and requires special skill of the adjuster. Also, replacement of the end parts of the guide rail, which are parts that are easily worn, is troublesome.
Because they are fastened with a large number of screws.

[0003] German Published Patent Specification (DE-AS) No. 1,27
From U.S. Pat. No. 2,823, a supply device for bar-shaped semifinished products, in particular for welding electrode rods, is known. The device has a vertical guide tube below the funnel-shaped storage container, which guide tube comprises:
It is bounded by a plurality of side walls or rails, and the distance between these side walls or rails is a rod (welding electrode rod)
Is adjusted by means of an oblique joint plate forming a parallelogram so as to fit the diameter. The side wall of the guide tube is reciprocated by an eccentric plate and a rod on a conveyor to reciprocate the rod.

[0004] German Published Patent Specification (DE-AS) No. 2,15
In the device for feeding eyelets etc. to the riveting machine known from No. 1,081, the gap between the guide rails is adjusted by adjusting spindles and oblique slits in order to match the gap between the guide rails to the diameter of the semi-finished product. You.

[0005]

The object on which the invention is based is to adjust the obliquely arranged guide rails (sliding rods) for the roughing bolts on the shaping machine, in particular on the thread rolling machine, and on the guide. The purpose is to facilitate replacement of rail end parts.

[0006]

This object is achieved according to the invention by starting from a device of the type initially described.
It is solved by the features of the characteristic part.

[0007] It is a further object of the invention that other arrangements elicit the dependent claims.

By providing in advance a cross beam which is arranged on these guide rails in a state inclined with respect to the guide rails and which is connected to a rod seated in the sandwiching sleeve, A parallel adjustment of the guide rails is possible at any time in order to adapt the gap between them to the diameter of the coarse bolt. This is because the cross beams, together with the guide rails, form a parallelogram link mechanism. The adjustment of the guide rail can be performed more quickly and more accurately. The new arrangement also eliminates the need for each lateral connection or cross beam below the guide rail, so that transport of very long rough bolts is not hindered. The replacement of the end parts of the guide rails is performed much more quickly with the use of a gripper.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS In the drawings, an embodiment of the invention is simplified. That is, the illustration is made in a state in which ordinary components not belonging to the present invention are omitted.

The illustrated device 1 for supplying a roughing bolt (not shown) to a rolling jaw of a bolt shaping machine, for example a thread rolling mill, is essentially two guide rails (sliding bars) 2 and 3, one of the guide rails 2 is mounted at a fixed position on the machine base 4, and at the same time,
The other guide rail 3 is adjustable in order to adjust the gap 5 between the guide rails 2, 3 to correspond to the diameter of the bolt to be formed, for example a screw blank.

A number of tightening cases 6 to 7 divided along the length of the guide rails 2 and 3 are provided with screws 8.
(See also FIG. 3). The fastening case 7 fixed on the movable guide rail 3 is often in front of the fastening case 6 fixed on the guide rail 2 at the fixed position (left side in the figure) in the conveying direction of the rough bolt.
To sit down.

A plurality of rods 9 are seated in the tightening cases 6 and 7, and these rods 9 are connected to each other via a cross beam 10. As a result of this configuration, the cross beams 10 together with the guide rails 2 and 3 form a parallelogram link mechanism.

With the manual lever 11 (FIG. 3), the tightening case 6,
After lightly loosening 7, the movable guide rails 3
Can be adjusted by simultaneously rocking around the rod 9 into the clamping case 6 of the fixed guide rail 2. By swinging in the direction of arrow 12 (FIGS. 1, 2 and 3), said gap 5 is expanded and in the opposite direction is reduced. In order to measure or control the exact width of the gap 5, it is only necessary to insert a coarse bolt at an arbitrary position in the gap 5. This adjustment position ensures that the width of the gap is uniform over the entire length of the supply device 1.

Above the guide rails 2, 3 and the gap 5, there is provided in a conventional manner a height-adjustable covering guide rail 13, which is partially broken in FIGS. It is not shown in FIG.

The entire feeding device 1 can be adjusted in height by a guide column 14 and can be fixed in a prism 15 by a gripper slider 16 via a screw 17. Height adjustment may be required, for example, when threads need to be provided on a threaded shaft and other such without a shaft. The height adjustment of the supply device 1 is performed on a spindle 18, which can be actuated by a handwheel 19 on an umbrella wheel (not shown) (see FIG. 2).

FIG. 1 shows a screw 20 as an auxiliary device for adjusting the gap 5 for guiding a rough bolt in a feeding device 1 arranged in an oblique plane to a rolling jaw (not shown). A detent 20a is shown that is adjustable using and secured using a secondary nut 21.

On the movable guide rail 3, a lock pin 22 urged by a spring is supported in a usual manner. This lock pin 22 is in the blocking position in FIG.
In this state, in order to further prevent the supply of other rough bolts, they protrude into the gap 5. The locking pin 22 thus penetrates into the gap 5 when someone works on the lower front end of the feeding device 1 or because of a bolt, for example a screw, which has been formed in a completed state. Or when further processing of the roughing bolts in the running machine has to be stopped for another reason. Lock pin 22
Is moved out of the gap 5 by sliding on the slope 23 of the slider 24. For this reason, the manual grip on the slider 24
25 are provided.

The guide rail end pieces 26 and 27, which must be replaced from time to time as wear parts, allow easy and quick removal. This is because they are held using the gripper 28 (see in particular FIG. 4).

In front of the guide rail end parts 26, 27, the insertion slider 29 is operated during operation of the machine. The insertion slider 29 is actuated periodically and guides the coarse bolt to the rolling jaw quite instantaneously. As one coarse bolt is shown in cross section on the left side of FIG. 4, each coarse bolt is separated by a separating tongue 30, which is likewise activated periodically. The operating device for the separating tongue 30 is indicated in FIG.

[Brief description of the drawings]

FIG. 1 is a plan view of the apparatus of the present invention.

FIG. 2 is a plan view of the device of the present invention which can be extended to the right side of FIG. 1;

FIG. 3 is an enlarged view of an area II in FIG. 2;

FIG. 4 is an enlarged view of an area III in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Supply device 2 Guide rail 3 Guide rail 5 Clearance 6 Tightening case 7 Tightening case 9 Rod 10 Cross beam 14 Guide post 18 Spindle 19 Handwheel 20a Detent 26 Guide rail end part 27 Guide rail end part 28 Grasping hand

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B21H 9/02 B21K 27/00

Claims (5)

(57) [Claims] An apparatus for feeding a rough bolt to a machine for shaping with a rolling jaw, comprising two guide rails arranged in parallel with each other, the guide rails having a diameter of the rough bolt. The guide rails are adjustable to fit and extend obliquely to the horizontal, and these guide rails have replaceably mounted guide rail end parts, in front of these guide rail end parts. For inserting loose coarse bolts into the rolling jaws,
In a feeding device in which a periodically actuated insertion slider is arranged at an acute angle to the guide rail, the guide slide is fixed on one of the guide rails (2) and the other movable guide is provided. On the rail (3), a number of tightening cases (6 to 7) which are separated from each other along the length of the guide rails (2, 3) are fixed, and the inside of these tightening cases is fixed. In each case, rotatably displaceable rods (9) are seated so as to be fastened and fixed, which rods (9) extend over the guide rails (2, 3) and extend obliquely with respect to these guide rails. The tightening case (7) connected to the upper cross beam (10) and fixed on the movable guide rail (3) includes the guide rail (2, 3).
In the desired direction, and in front of a clamping case (6) fixed to the fixed guide rail (2), whereby the cross beam (10) and the rod (9) are connected to the guide rail. (2, 3) is formed with a parallelogram link mechanism for adjusting the distance (gap 5) between the opposing sides of the guide rail (2, 3). A device for supplying rough bolts to a rolling forming machine. 2. The device according to claim 1, wherein the guide rails (2, 3) are adjustable in height on guide posts (4). 3. In order to adjust the height of the guide rails (2, 3), the guide support (14) has a handwheel on an umbrella car.
3. The device according to claim 2, wherein a spindle (18) operable by (19) is provided. 4. For the movable guide rail (3),
4. Device according to claim 1, further comprising an adjustable detent device (20, 20a, 21). 5. The guide rail end part (26, 27) is fixed on the guide rail (2 or 3) by a gripper (28). An apparatus according to claim 1.