JPH0716704B2 - Automatic work loader for roll straightener - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for automatically inserting a tubular or rod-shaped work made of metal such as aluminum into a roll straightening machine.

2. Description of the Prior Art For example, a tubular or rod-shaped work that has been drawn has a certain amount of bending, so that it is possible to straighten it.

This straightening is performed by a straightening machine called a so-called inclined roll type, that is, by inserting a tubular or rod-shaped work from its tip end in an automatic direction, a plurality of staggered or drum-shaped straightening machines are provided in the machine. It is common practice to use a straightening machine in which the work is drawn in and rotated by the action of a straightening roll arranged in a tilted state to straighten the work and feed it forward.

Conventionally, when a work is put into this roll straightening machine, the work is a photosensitive drum substrate that supports a photoconductive photoconductor layer such as selenium or an organic photoconductor in a photoconductive drum of an electronic copying machine, a laser printer, or the like. In the case of a drawn pipe for which the surface quality is severely demanded, such as that used in the above, it is often done manually by a worker in order to prevent the surface from being scratched.
That is, as shown in FIG. 4, the leading end of the withdrawal pipe (92) is carried on the roller (93), and the rear end is supported by the worker (91) with a special gloved hand. Drawing tube (9
2) is held on the same axis as the loading port of the roll straightening machine (94), and the worker (91) pushes the drawing tube (92) toward the roll straightening machine (94) to perform loading. It was

The problem to be solved by the invention is that the manual input as described above is inefficient and not suitable for mass production, and the roll straightener (9
It is practically difficult to maintain the proper angle of the pipe (92) with respect to 4) at a proper and constant angle during the process, and due to the variation, the straightness of the straightened drawn pipe (93) is not always satisfactory. However, there is a problem in that the yield of orthodontic products is reduced.

In addition, in the manual insertion work, even when a skilled worker uses special gloves as described above while paying close attention, the outer peripheral surface of the pipe (92) is still rotated due to the rotation of the pipe (92) during straightening. There was a concern that scratches would be caused by the sliding contact with the support roller or gloves.

This invention solves the conventional problems as described above, it is possible to increase the efficiency of the work of inserting a tubular or rod-shaped work into a roll straightening machine, and improve the yield of straightened products,
Moreover, it is an object of the present invention to provide an apparatus for automatically inserting a work into a roll straightening machine, which can perform the operation of inserting the work without scratching the work.

Means for Solving the Problems The above-mentioned object is an automatic work-loading device that is disposed on the loading side of a roll straightening machine and that loads a tubular or rod-shaped work into the roll straightening machine, the outer periphery of the tip of the work. A support roller that supports the surface from below, and a work holding device that holds the rear end of the work in a mode that allows rotation of the work, and reciprocally operates in the axial direction to insert the work into the roll straightening machine, The support roller supports the work until the tip of the work is introduced into the roll straightening machine, and is separated from the work after the introduction and is controlled so as to maintain a non-contact state. This is achieved by an automatic device for loading the work into the straightening machine.

In the apparatus having the above-described structure, the work is on the same axis as the input port of the roll straightening machine by the operation of the holding device in a state where the front end of the work is supported by the support roller and the rear end is held by the holding device. Is pushed to the roll straightener side.

When the tip portion of the work is introduced into the roll straightening machine by this pushing, the support roller is separated from the work, and the support roller and the work are kept in a non-contact state. Will be supported.

Then, after the tip of the work is introduced into the roll straightening machine, the work is drawn in while being rotated by the action of the roll straightening machine itself. that time,
The holding device keeps the rear end of the work while continuing to move to a predetermined position, thereby preventing the work itself from being bent due to its own weight. Further, while the work is rotated by the action of the roll straightener in the drawing process, the holding device holds the rear end of the work in a manner that allows the work to rotate freely.

After the loading of the work is completed, the holding device retracts to the original position in the rear, waits for the next loading operation of the work, and the same operation as described above is repeated.

Embodiments Specific embodiments of the present invention will be described with reference to the drawings.

In FIG. 1, (1) is a roll straightening machine, and (2) is a work automatic loading device arranged on the work loading side of the roll straightening machine (1).

The roll straightener (1) is arranged in a plurality of slanted or drum-shaped inclined states provided inside by inserting a tubular or rod-shaped work (3) from its tip end in an automatic direction. By the action of the straightening rolls (11) ..., the work (3) is pulled in and rotated to straighten the work (3), and the work (3) is sent forward. It is a known straightening machine.

On the other hand, the work automatic loading device (2) holds a support roller (4) for supporting the outer peripheral surface of the distal end of a tubular or rod-shaped work (3) from below and a rear end of the work (3). (3) is constituted by a work holding device (5) that reciprocates in the axial direction so as to load the roll straightening machine (1).

The support roller (4) is attached to the upper end of the cylinder rod (42) of the cylinder device (41) disposed adjacent to the loading side of the roll straightening machine (1),
It is said that it can be raised and lowered by the operation of 1). This cylinder device (41) keeps the support roller (4) in a raised position to support the work (3) until the tip of the work (3) is introduced into the roll straightening machine (1), and after the introduction, the support roller (4). It is controlled so that (4) is lowered to separate the roller (4) from the work (3).

The work holding device (5) is composed of a holding cylinder (51) having a height and a rotary support device (52) attached to the inner bottom surface of the cylinder (51).

As shown in FIG. 3, the rotary support device (52) includes a cup-shaped fixing member (53) whose bottom is fixed to the inner bottom of the holding cylindrical body (51), and an opening side fixing member (53). ), The cup-shaped rotating member (54) fitted to the outside of the peripheral wall portion of the fixed member (53) and the peripheral wall of both members (53) (54) are interposed in the circumferential direction. It is an apparatus to which a so-called radial bearing structure is applied, which is configured by combining a plurality of spherical bodies (55). Therefore, in the process of pushing the work (3) by the holding device (5), the rear end surface of the work (3) comes into contact with the rotary member (54) of the rotary support device (52), and the work (3) ), Even if a rotational force acts on it, it is supposed to act so as to allow its free rotation.

The work holding device (5) is attached to the tip of an arm (58) extending from a traveling block (57) movably attached to a guide rail (56) extending in the front-rear direction, and the traveling block (57) is illustrated. It is configured to reciprocate in the front-rear direction by being driven by a drive device that does not operate.

Further, in this work holding device (5), a rearwardly projecting sliding rod (5) is attached to the outer bottom portion of the holding cylindrical body (51).
9) is provided, and this is slidably passed through a holding block (60) attached to the tip of the arm (58). Further, a coil spring (61) is externally mounted on the outer peripheral portion of the sliding rod (59) between the holding cylindrical body (51) and the holding block (60), and the holding device (5) is provided with the coil spring (61). It is supposed to have been elastically urged forward by the power. In addition, (62) is the rod (59)
It is a retaining piece.

Next, the operation of the automatic charging device (2) having the above structure will be described.

The tubular or rod-shaped work (3) conveyed to the automatic feeding device (2) has a tip end outer peripheral surface supported by a support roller (4) and a rear end portion of the holding device (5) holding cylinder. It is supported in a two-point support state as shown in FIG. Then, in this state, the holding device (5) is moved forward so that the work (3)
Is pushed to the roll straightening machine (5) side on the same axis as the input port of the roll straightening machine (1).

Then, when the tip of the work (3) is introduced into the roll straightener (1), immediately after that, the cylinder device (41) is operated and the support roller (4) is lowered as shown in FIG. , Away from the work (3). Therefore, after that, the work (3) is supported only by the holding device (5) at the rear end portion while the front end side is supported in the roll straightening machine (1), and the roll straightening machine ( 1)
It is drawn in. As a result, the rotation of the work (3) during straightening causes the support roller (4) to be attached to the work (3).
As a result, it is possible to avoid rubbing due to abrasion, and at the same time, allow the rotation support device (52) of the holding device (5) to rotate the work (3). As a result, a roll straightening machine ( It is also possible to avoid scratches caused by the rolls (11) in 1).

Then, the work (3) is further drawn into the roll straightening machine (1) while rotating while the rear end of the work (3) is held by the holding device (5). In the process, when the drawing speed of the work (3) by the roll straightener (1) is slightly higher than the moving speed of the holding device (5), the holding cylinder (51) in the holding device (5) causes the coil spring ( The urging force of 61) causes it to project forward and prevents the work (3) from falling off from the holding cylindrical body (51). on the other hand,
When the drawing speed is slightly slower than the speed of the holding device (5), the holding cylindrical body (51) is displaced rearward against the biasing force of the coil spring (61), and the work (3) cannot be compressed by force. But it is suppressed.

When the loading of the work (3) is completed, the holding device (5) retracts to the original standby position. Further, the straightened work that has passed through the roll straightening machine (1) is sent to the front of the roll straightening machine (1), received there and conveyed to the next process site. After that, the above-described operation is repeated, and the work is continuously loaded into the roll straightening machine (1).

EFFECTS OF THE INVENTION As described above, the device for automatically inserting the work into the roll straightening machine of the present invention automatically inserts the work into the roll straightening machine by the continuous operation of the support roller and the work holding device. Therefore, it is possible to improve the efficiency and labor saving of the work inputting work into the roll straightening machine.

Moreover, the work is pushed to the roll straightening machine side while the front end is supported by the supporting roller and the rear end is held by the holding device, and the work front end is introduced into the roll straightening machine. Since the trailing end is held by the holding device and is drawn into the roll straightening machine, the loading angle is kept proper and constant during the process of loading the work into the roll straightening machine. A corrected product that is inferior to the conventional product is not produced, and the yield can be improved.

In addition, when the tip of the work is introduced into the roll straightening machine, the support roller is separated from the work and is kept in non-contact with the work. It is avoided that the outer surface is scratched due to contact with the supporting roller, and the holding of the work by the holding device can be held in a mode that allows free rotation of the work during straightening. It is also possible to avoid scratches on the outer surface of the work during straightening due to unreasonable sliding contact with the rolls in the roll straightening machine, so it is possible to insert and straighten the work without scratching the work. Becomes

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 to FIG. 3 show an embodiment of an automatic work inputting device of the present invention. FIG. 1 is a side view of the device, and FIG.
FIG. 3 is a side view showing the operating state of the device, and FIG. 3 is an enlarged sectional view of the holding device. FIG. 4 is a side view showing a conventional method for loading a work into a roll straightening machine. (1) ... Roll straightening machine, (2) ... Automatic workpiece loading device,
(3) ... Work, (4) ... Support roller, (5) ... Work holding device.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ichiro Hashimoto 6-224 Kaiyamacho, Sakai City, Osaka Prefecture Showa Aluminum Co., Ltd. (72) Inventor Kazuo Sugiyama, 6-224, Kaiyamacho, Sakai City, Osaka Prefecture Showa Aluminum Co., Ltd. (72) Inventor, Tsugio Fukasawa, 6-224, Haiyamacho, Sakai City, Osaka Prefecture Showa Aluminum Co., Ltd. ( 72) Inventor Teruo Tate, 6-224, Kaiyamacho, Sakai City, Osaka Prefecture, Showa Aluminum Co., Ltd. (72) Inventor, Takashi Takegasa, 6-224, Kaiyamacho, Sakai City, Osaka Prefecture, Showa Aluminum Co., Ltd.

Claims (1)

[Claims] 1. An automatic work loading device, which is disposed on the loading side of a roll straightening machine and loads a tubular or rod-shaped work into the roll straightening machine, and supports the outer peripheral surface of the tip of the work from below. A support roller, and a work holding device that holds the rear end of the work in a mode that allows rotation of the work, and a work holding device that reciprocates in the axial direction to insert the work into a roll straightening machine, the support roller is The work is supported to the roll straightening machine until the tip is introduced into the roll straightening machine, and after the work is separated from the work, it is controlled so as to maintain a non-contact state. Automatic loading device.