JPS60111724A - Sizing roll device - Google Patents

Abstract

PURPOSE:To rearrange easily rolls according to circumstance by providing vertically-moving surface plates and horizontally-moving surface plates. both of which are parallelly movable to the 1st surface plate, and arranging oppositely vertical or horizontal rolls on the moving plates so as to sandwich a product-passing hole between the rolls. CONSTITUTION:A universal-type roll-forming device is constituted of the 1st surface plate 1 having a square hole 2 through which a product 3 passes, horizontally-moving surface plates 6, 7 which are movable horizontally and parallelly to the plate 1 and have each a notch for surrounding the hole 2, vertically- moving surface plates 17, 18 which are movable vertically and parallelly to the plates 6, 7, a vertical roll 24 supported paralllelly to the vertical side of the hole 2 by the plate 6, a vertical roll 31 supported by the plate 18 in the same manner, a horizontal roll 30 supported parallelly to the lateral side of the hole 2 by the plate 17, and a horizontal roll 26 supported by the plate 7 in the same manner. In this way, a sizing roll device, capable of easily rearranging the rolls in accordance with the shape or size of a product, is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a finishing shaping roll device used in the production of square steel pipes and lightweight sections.

In a series of forming roll equipment for lightweight steel sections such as square steel pipes, channel steel, and Z-shaped steel, the final stage finishing and shape straightening equipment requires two to four forming rolls each time the product type or size changes. It is designed to be replaced and reassembled,
It takes a lot of time to remove, install and adjust the rolls.
During this time, work is suspended, which is one of the major causes of reduced production efficiency.

In order to solve this problem, a so-called Turk's Sodorol has been proposed, but since this roll is a non-driving roll, it takes a long time to process the rear end of the product, so-called end treatment. In addition, the forming speed of the product varies greatly when passing through the rear end, so for example, in equipment where a measuring roll is brought into contact with the product surface and the cutting machine is controlled by the rotation speed, the cutting length may be uneven. There are drawbacks such as problems such as chipping of the blade.

This invention solves the above problems. The object of the present invention is to provide a fixed roll device, which includes a first face plate that is incorporated in a roll stand and has a rectangular hole in the center through which the product passes; two horizontally movable face plates, upper and lower, which are movably provided and have a notch to surround the square hole; a movable face plate, a cantilevered left vertical roll rotatably fixed to the horizontally movable face plate parallel to the opposing left and right vertical sides of the square hole, and a left vertical roll rotatably fixed to the downwardly downward movable face plate. a cantilevered right vertical roll, and a cantilevered upper horizontal roll connected to a drive shaft rotatably fixed to the upper vertical movable face plate parallel to the opposite upper and lower horizontal sides of the square hole; The present invention relates to a universal type fixed roll device characterized by comprising a cantilevered lower horizontal roll rotatably fixed to a lower horizontally movable face plate and connected to a drive shaft.

Next, embodiments shown in the accompanying drawings will be described.

A rectangular passage hole 2fJ is formed in the center of a first face plate 1 incorporated in a roll stand (not shown) through which a product 3 of maximum size can pass.

Upper and lower second face plates, that is, horizontally movable face plates 6.7 are mounted so as to be movable in the horizontal direction parallel to the first face plate while being guided by rails 4.5 provided on the first face plate;
A notch 8.9 is provided in each horizontally movable face plate corresponding to the peripheral edge of the product passage hole 2 of the first face plate 1.

Horizontal movement The horizontal movement of the face plate is achieved by, for example, external screws lla and llb rotatably fixed to the first face plate 1 by bearings 10a and 10b, and gears 12a and 12b connected thereto.
By rotating the motors 13a and 13b in the forward or reverse direction via the
This is done by moving the female screws 14a and 14b screwed into the holes a and llb in the left-right direction.

Rails 15 or 1 provided on the horizontally moving face plate 6.7
Upper and lower vertically movable face plates 17, 18 are mounted so that they can be moved in the vertical direction while being guided by 6. The movement of the vertically movable face plates 17 and 18 in the vertical direction is achieved by, for example, the horizontally movable face plate 6.
Or by rotating the motors 22a, 22b forward or reverse through the gears 21a121b connected to the external screws 20°a, 2Qb rotatably fixed to the vertically movable face plate 17.18 by bearings 19a, 19b. A female thread 23a fixed to the
, 23b in the vertical direction.

As can be seen from FIG. 3, a left vertical roll 24 is rotatably fixed to the upper horizontally movable face plate 6 by a bearing 25a parallel to the left vertical side of the product passage hole 2 of the first face plate. A lower horizontal roll 26 is rotatably fixed to the lower horizontally movable face plate 7 by a bearing 27a parallel to the lower side of the product passage hole 2.
The lower horizontal roll 26 is connected to a drive shaft 29a via a universal joint 28a.

As can be seen from FIG. 4, an upper horizontal roll 30 is rotatably fixed to the upper vertically movable face plate 17 by a bearing 27b parallel to the upper side of the product passage hole 2, and the upper horizontal roll 30 is rotatably fixed to the upper vertically movable face plate 17 via a universal joint 28b. and is connected to the drive shaft 29b. In addition, the right vertical roll 3 is attached to the lower horizontally movable face plate 18.
1 is rotatably fixed parallel to the right vertical side of the product passage hole 2 by a bearing 25b.

As shown in the figure, each roll is supported in a cantilevered manner by a bearing, and since the bearings alone are not strong enough to support the forming load received during forming, mountings are attached to each surface for reinforcement purposes. It is designed so that it is backed up from behind by a hack-up roll 33 built into the launch block 32.

Further, when the horizontally movable face plate is moved in the horizontal direction, the drive shafts 29a and 29b of the horizontal rolls must expand and contract, and for this purpose, a spline shaft may be provided in the middle of the drive shafts.

Next, we will explain how to use typical product shapes. In the following description, it is assumed that the pass line constant, that is, the height of the lower horizontal roll is always constant.

(a) Figure 5 (Al shows the arrangement of each roll in the case of a square cross section, but when increasing the cross-sectional area of the product as shown in Figure (b), (1) Upper horizontal roll 30 and lower horizontal The upper horizontal moving face plate 17 and therefore the upper horizontal roll 30 are moved upward until the gap with the roll 26 reaches a predetermined product height.

(2) Next, move the lower horizontally moving face plate 7 until the gap between the left and right vertical rolls 24 and 31 reaches the predetermined product width, and therefore the lower horizontal roll 2.
6 and the right vertical roll 31 are moved to the right.

(3) Next, move the lower downward surface moving face plate 18, and therefore the right dark blue roll, upward until its end reaches the upper horizontal roll surface to obtain the arrangement shown in Fig. fb1.

(b) When changing from the square cross section in Figure 5(a) to the vertically elongated rectangular cross section in the TCT diagram, 17. Therefore, the upper horizontal roll 30 is moved upward.

(Move the downwardly moving face plate 18 upward until the right vertical roll 31 reaches the roll surface of the upper horizontal roll 30.

(3) Move the upper horizontally moving face plate 6, therefore the upper horizontal roll 3° and the left vertical roll 24 to the left until the left knitting roll surface comes to half the product width from the vertical center line CL.

In this way, a caliber with a desired cross-sectional shape can be formed with a constant pass line (PL). It will be easily understood that in the case of a horizontally long rectangular cross section, the movement can be done in the opposite direction to the above.

Further, in the case of the regular shape of the lip channel steel shown in Fig. d1, the same procedure as above may be applied.

(c) When used for shaping the Z-shaped steel shown in Figure 5 (el), (11) move the upper vertically movable face plate, and therefore the upper horizontal roll 30, until the gap between the upper and lower horizontal rolls 30.26 reaches the product height. move it upwards.

(2) The face plate moves downward until the flange thickness remains between the right vertical roll 31 and the upper horizontal roll 30, and therefore the right vertical roll 31
move upward.

(3) Move the upper horizontally moving face plate 6 to the right until the roll surface of the left vertical roll 24 comes to half the web thickness from the vertical center line CL.

(4) Move the lower horizontally moving face plate 7 to the left until the roll surface of the right vertical roll 31 comes to half the web thickness from the vertical center line CL.

The above was explained by moving each role sequentially, but
Since they can be moved at the same time, the size of the rolls can be changed in a short time in actual work.

Also, if you want to change the bottom pass line, the first plate can be moved up and down. Alternatively, instead of directly supporting the lower horizontal roll 26 on the lower horizontally movable face plate 7, the lower horizontally movable face plate 18 is further provided on the lower horizontally movable face plate 7.
It is also possible to provide a vertically movable face plate similar to the above, and to support the lower horizontal roll so as to move it up and down.

Since the device of the present invention has the above-mentioned structure, it is easy to change the rolls according to the product shape and size. If the movement sequence is stored in advance in a control device (not shown), it becomes possible to simultaneously move the four face plates and set them at predetermined positions when changing the size, and roll rearrangement can be performed automatically in a short time. be able to.

Furthermore, if the first plate is structured to be rotatable in the vertical direction and within the plane about the axis, it will be possible to correct warpage, bending, and twisting of the product, which will have extremely great practical effects.

[Brief explanation of the drawing]

Fig. 1 is an overall assembled view of an embodiment of the present invention, Fig. 2 is a sectional view taken along the line nn in Fig. 1, Fig. 3 is a front view of main parts showing the vertically horizontally movable face plate and the arrangement of rolls thereon, and Fig. Figure 4 shows a horizontally moving face plate.
FIG. 5 is a front view of main parts showing the vertically movable face plate of H and the arrangement of rolls thereon, and FIG. 5 is an explanatory view showing the procedure for rearranging the rolls. 1... First face plate, 2... Product passage hole, 4.5...
・Guide rail, 6... Upper horizontal moving face plate, 7... Lower water moving face plate, 8.9... Notch, 10a, 10b...
・Bearing, 11a, Ilb...Male thread for horizontal movement face plate, 13a, 13b--Motor, 14a, 14b-Female thread, 15.16...Guide rail, 17...Main vertical movement face plate, 18. ...Lower surface moving face plate, 19a, 19b
...Bearing, 20a, 20b...Male screw for vertical movement face plate movement, 22a, 22 b-...Motor, 2'3a, 2
3 b-jlll screw, 24...left vertical roll, 25.
...Bearing, 26...Lower horizontal roll, 27a, 27b
...Bearing, 28a, 28b...Universal joint, 29a, 29b...Drive shaft, 30...Upper horizontal roll, 31...Right vertical roll, 32...Mounting block, 33... ... Bank Up Roll Applicant Agent Patent Attorney Kamoshi 1) Second son % I Figure 2 Figure 3 Figure ke

Claims (1)

[Scope of Claims] A first face plate that is incorporated into the roll stand and has a rectangular hole in the center through which the product passes; , two horizontally movable face plates, upper and lower, each having a notch so as to surround the square hole; an upper and a lower vertically movable face plate that are movable in parallel and vertically on the upper and lower horizontally movable face plates; A cantilevered left vertical roll rotatably fixed to the upper horizontally movable faceplate parallel to the opposite left and right vertical sides of the square hole, and a cantilevered left vertical roll rotatably fixed to the lower vertically movable faceplate. A right vertical roll, a cantilevered upper horizontal roll rotatably fixed to the upper horizontally movable faceplate and connected to a drive shaft parallel to the opposite upper and lower horizontal sides of the square hole, and a lower horizontally movable faceplate. A universal shaped roll device comprising a cantilevered lower horizontal roll with a drive shaft connected to the drive shaft rotatably fixed to the