JPH07110377B2 - Device for receiving and conveying work from roll straightener - Google Patents

Description

Description: TECHNICAL FIELD The present invention receives a tubular or rod-shaped work made of straightened metal such as aluminum sent from a roll straightening machine, and places it at a predetermined position in front of the roll straightening machine. The present invention relates to a work receiving and conveying device that conveys a workpiece.

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

This straightening is a so-called inclined roll type straightening machine, that is, a plurality of slanted or drum-shaped inclined states provided inside by inserting a workpiece from its tip end in the direction of its own axis. While pulling in the work by the action of the roll arranged in, straightening straight while imparting driven rotation,
It is generally performed by using a roll straightening machine of the type that feeds forward.

Heretofore, the drawing tube sent from this roll straightening machine has been received or conveyed by using, for example, a device as shown in FIG. That is, this device includes a plurality of drive rollers (52), which are alternately installed at a front position of the roll straightener (51) at predetermined intervals in the front-rear direction.
Each roller (52) ... (58) ... receives a work (54) which is composed of an idler roller (53) ... and is sent out from a roll straightener (51), and forward by a drive roller (52). It is supposed to be transported to a predetermined position.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the work receiving and conveying device as described above, at the stage immediately after the tip of the work (54) is delivered from the roll straightening machine (51), the rear end of the work (54) Is still forced to rotate by the straightening roll (51a) in the roll straightening machine (51) and is forced to rotate, so if the work (54) is supported by the rollers (52) (53) at this stage. , The outer peripheral surface of the work (54) may be scratched by sliding contact with the roller.

In particular, the surface of the work (54) is used as a photosensitive drum substrate that supports a photoconductive photoreceptor layer such as selenium or an organic photoreceptor in a photosensitive drum such as an electronic copying machine or a laser printer. In the case of a drawn pipe whose quality is strictly required, the above-mentioned scratches may cause fatal damage and the yield of the straightened product may be significantly reduced.

In addition, the work (5
Since the conveyance of 4) is performed by the drive rollers (52) as described above, even if the drive of the drive rollers (52) is stopped when the work (54) is located at the predetermined stop position. However, there is a problem in that the work (54) is difficult to stop accurately at that position due to the inertial force, which may hinder the automatic transfer of the work to other work processes such as a fork.

The present invention solves the conventional problems as described above, the work can be received from the roll straightening machine without scratching the work, and the received work can be conveyed by the roll straightening machine. An object of the present invention is to provide an apparatus for receiving and conveying a work from a roll straightening machine that can be accurately stopped at a predetermined position in front.

MEANS FOR SOLVING THE PROBLEMS In the above object, the present invention is arranged on the outlet side of a roll straightening machine, receives a tubular or rod-shaped work sent out from the roll straightening machine, and receives the work in front of the roll straightening machine. An automatic receiving and conveying device for a work to be conveyed to a position, which is movable in the front-rear direction and holds a front end of the work in a mode that allows rotation of the work, and a rear outer peripheral surface of the work to be supported from below. A supporting roller that is movable up and down toward the axis of the work is provided, and the holding device starts from a rear standby position near the exit of the roll straightening machine and moves to the front. The control roller is controlled so as to hold the tip of the work sent out from the roll straightening machine, and the supporting roller is One side is kept in contact with the work by standing by at the standby position, while it is operated so as to rise and support the back of the work when the rear end of the work is sent out from the roll straightener. The present invention is an apparatus for receiving and transporting a work from a roll straightening machine, which is characterized by being performed.

Further, in this work receiving and conveying device, the holding device is attached to the upper side of an endless chain that circulates in the front-rear direction, and the support roller is located at the lower side of the chain at a position rearward of the attaching position of the holding device. It is preferably attached to.

In the apparatus having the above configuration, when the work is put into the roll straightening machine, the holding device starts to move forward from the rear standby position near the exit of the roll straightening machine at a predetermined time point, and the initial stage of the movement. At this point, the tip of the work sent out from the roll straightener reaches the position of the holding device, and the tip is held by the holding device.

At that time, the work is still forcibly rotated by the action of the inner straightening roll with its rear end still inside the roll straightening machine, but the holding device moves the front end of the work in such a manner as to allow the work to freely rotate. Hold.

After that, when the rear end of the work is sent out from the roll straightener, the support roller rises from the lower standby position to support the rear outer peripheral surface of the work from below. At this point, the rear end of the work is no longer in contact with the straightening action of the roll straightening machine and is stopped, so that the work and the supporting roller do not make an excessive sliding contact. In this manner, the work is pulled by the holding device while being supported by the holding device and the support roller at the front and rear thereof, conveyed to a predetermined position in front, and stopped at that position.

After that, after the work is taken out by another carrying means, the holding device and the support roller return to the original position, stand by for the next work receiving and carrying operation, and the same operation as above is repeated. .

Also, in the configuration in which the holding device and the support roller are attached to the endless chain, the support roller moves the lower side of the chain toward the roll straightener side during the straightening of the work, and the rear end of the work rolls. When sent out from the straightener, it moves to the upper part of the chain and supports the work.

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

In FIG. 1, (1) is a roll straightening machine, and (2) is a work receiving and conveying device arranged at the exit 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 toward the self-axis direction. By the action of the straightening roll (4) ...
It is a known straightening machine of the inclined roll type as described above, which straightens the work (3) while pulling it in and imparting driven rotation to straighten the work (3).

On the other hand, in the work receiving and conveying device (2), (5) is an endless chain, (6) is a holding device, and (7) is a support roller.

The chain (5) consists of a pair of front and rear sprockets (8).
By being stretched over (8), it is supposed to orbit in the front-back direction. The chain (5) can be rotated in either forward or reverse directions by a drive device (not shown).

As shown in FIG. 6, the holding device (6) is attached to the U-shaped frame (9) connected to the chain (5) and the inner surface side of the rising side portion of the frame (9),
Rotational support device (10) that supports the tip surface of the work (3)
And a holding device (11) which is attached to the lower side of the frame (9) and holds the outer peripheral surface of the tip of the work (3).

As shown in FIG. 7, the rotary support device (10) includes a cup-shaped fixing member (12) whose bottom is fixed to the inner surface of the rising side of the frame (9) and a fixing member (12) on the opening side. )
Of the cup-shaped rotating member (13) fitted to the outside of the peripheral wall of the fixing member (12) toward the opening side of the fixing member (12), and both members (12).
A plurality of spheres (1
This is a device that applies the structure of a so-called radial bearing, which is configured by combining 4).

Therefore, according to this rotation bearing device (10), the tip end surface of the work (3) which is forcibly rotated by the action of the roll straightening machine (1) can be supported in a manner permitting the rotation. .

As shown in FIG. 6, the holding device (11) is provided with a through passage (16) through which the work (3) passes, and a pad (17) is provided on the lower side with the through passage (16) sandwiched therebetween. A presser cylinder device (18) is arranged on the upper side, and the work (3) is held by the rod (19) and the pad (17) when the cylinder rod (19) of the cylinder device (18) advances. Has been made.

In addition, a bell-shaped work guide protrusion (20) that expands rearward is provided on the inlet side of the holding device (11),
Work (3) sent from the roll straightener (1)
Even if there is a misalignment between the holding device (11) and the holding device (11), the tip of the work (3) can be received in the holding device (6) without any trouble.

The holding device (11) is divided into an upper half (23) in which the cylinder device (18) is arranged and a lower half (24) in which the pad (17) is arranged. The upper half (23) can be moved up and down. As a result, after the work (3) is transported by the receiving and transporting device (2), the work (3) can be taken out from the receiving and transporting device (2) by a predetermined unloading means.

The support roller (7) is attached to the lower side of the chain (5) at the rear position of the holding device (6). That is, as shown in FIGS. 1 to 3, the work (3)
While the rear end of the chain is inside the roll straightening machine (1) and is receiving the straightening action, it is located on the lower side of the chain (5) and keeps no contact with the work (3), while FIG. As shown in Fig. 3, when the rear end of the work (3) is released from the straightening action of the straightening rolls (4) of the roll straightening machine (1), the work moves to the upper side of the chain (5). It is supposed to support (3).

Then, the circulation control of the chain (5) is performed in the following manner. That is, the holding device (6) is received and the rear standby position in the conveying device (2), that is, the roll straightener (1).
Starting from a position close to the exit of the roll and moving it forward, the speed of the holding device (6) becomes approximately the same as the delivery speed of the work (3) delivered from the roll straightener (1). When it reaches, the orbiting control is performed so that the tip of the work (3) is received by the holding device (6).

As shown in FIG. 1, a pushing cylinder device (27) is arranged adjacent to the rear part of the chain (5),
The cylinder device (27) operates in tandem with the start of the chain (5), and the rod (28) thereof pushes the holding device (6) from the rear.

Next, the operation of the work receiving and conveying device (2) having the above structure will be described.

First, as shown in FIG. 1, the work receiving and conveying device (2) waits at a position where its holding device (6) is closest to the roll straightener (1) side.

Then, at a predetermined time point after the work (3) is put into the roll straightener (1), as shown in FIG. 2, the chain (5) is started and, at the same time, the chain (5) is pushed forward and backward. The device (27) is activated and the holding device (6) starts moving forward. Meanwhile, the tip of the work (3) is sent out from the roll straightening machine (1) and gradually approaches the holding device (6) while rotating around its own axis. Then, when the speed of the holding device (6) reaches substantially the same speed as the delivery speed of the work (3), as shown in FIG. 3, the tip of the work (3) is held by the holding device (6). And passes through the through passage (16) of the holding device (11) and contacts the rotary support device (10). As a result, no impact force acts on the work (3) when it is received by the holding device (6), and the work (3) is prevented from being scratched by the straightening roll (4) of the roll straightening machine (1). Further, due to the action of the pushing cylinder device (27), the holding device (6) is compensated for the rising delay of the traveling speed due to the driving force of the chain (5), and a predetermined speed is given from the initial stage of the traveling start. Since it is moved forward, the tip end surface of the work (3) sent out from the rear is the rotary support device (10) of the holding device (6).
It is possible to avoid a strong and shocking collision with.

After that, the holding device (6) moves forward at the same speed as the delivery speed of the work (3), and the work (3) is supported by the holding device (6) and the roll straightener (1). Then, it is sent out from the roll straightener (1). At that time, the work (3) is still forcibly rotated by the roll straightening machine (1), but the tip end of the work (3) is supported by the rotation supporting device (10) in a manner permitting rotation. Therefore, it is possible to prevent the work (3) from being scratched by scratches on the work roll (3) in the roll straightening machine (1).

Then, when the feeding progresses and the work (3) is released from the forced feeding state by the roll straightener (1), the holding cylinder device (18) in the holding device (6) operates, and the sixth As shown in the figure, the tip of the work (3) is attached to the pad (17) of the holding device (11) and the cylinder rod (1).
9) Held by and. At the same time, as shown in FIG. 4, the support roller (7) moves from the lower side to the upper side of the chain (5), and the work (3) is supported at the rear outer peripheral surface from below.

The chain (5) is circulated until the work (3) is at a predetermined stop position, for example, the holding device (6) is located at the most distal position of the chain (5) as shown in FIG. , Stopped at that position. At the time of this stop,
Since the tip end surface of the work (3) is in contact with the rotation bearing device (10) and the tip outer peripheral surface is held by the holding device (11), the work (3) is held between the holding device (6) even when suddenly stopped. There is no risk of relative displacement of the workpiece (3), and therefore the work (3) can be quickly transported to a predetermined stop position.

Then, after the work (3) is conveyed to a predetermined position, the rod (19) of the holding cylinder device (18) retracts and the upper half (23) of the holding device (11) rises,
The work (3) is taken out by a take-out means such as a fork (not shown), and conveyed to the next work process. on the other hand,
In the receiving and conveying device (2), the upper half part (23) of the holding device (11) descends, the pushing cylinder device (27) also returns to its original state, and the chain (5) rotates in the opposite direction. Return to the original standby position. Then, the same operation as above is repeated.

EFFECTS OF THE INVENTION As described above, in the device of the present invention, the holding device is provided with respect to the work which is fed out from the roll straightening machine and whose rear end portion is still inside the roll straightening machine and is forced to rotate under its action. Since it is held in a mode that allows rotation, it is possible to prevent the outer surface of the work from being scratched due to unreasonable rubbing in the direction of rotation with the straightening roll in the roll straightening machine. Further, the holding device starts from a rear position close to the exit of the roll straightening machine and moves forward, so that at the initial point of the movement, the tip of the work sent out from the roll straightening machine can be held. Since the work is controlled, a strong impact force in the axial direction does not act on the work, and there is no risk of scratches due to excessive rubbing in the axial direction between the straightening roll and the work in the roll straightening machine. Further, the support roller is kept in a non-contact state with the work by waiting at the lower standby position while the work is being straightened by the roll straightening machine, and rises when the rear end of the work is sent out from the roll straightening machine. Since it is operated so as to support the rear part of the work, the work is not scratched by the support roller. Therefore,
According to the device of the present invention, the work can be received without scratching the outer surface thereof.

Therefore, in particular, it is possible to receive a work for which surface accuracy is strictly required, for example, a drawn tube used for manufacturing the photosensitive drum substrate as described above, without scratches, and thus improve the manufacturing yield. Can be achieved.

Moreover, since the work is conveyed to the front of the roll straightening machine by holding the front end portion by the holding device in a state where the rear portion is supported by the supporting roller, the work is conveyed at a predetermined position in front of the roll straightening machine. Even if the revolving operation of the chain is relatively suddenly stopped, the work does not move forward relative to the holding device due to its inertial force. Therefore, the work sent out from the roll straightening machine is not transferred to the holding machine. It can be stopped accurately at a predetermined position in front of.

Further, in the structure in which the holding device and the support roller are attached to the endless chain, it is not necessary to use a special elevating device or control device for vertically moving the support roller, and the structure of the work receiving and conveying device is simplified. There is an advantage that

[Brief description of drawings]

1 to 7 show an embodiment of the work receiving and conveying apparatus of the present invention. FIG. 1 is a side view showing a standby state for receiving a work, and FIG. 2 is a chain starting to circulate. FIG. 3 is a side view showing the state immediately after, FIG. 3 is a side view showing the state in which the holding device has received the tip of the work from the roll straightening machine, and FIG. 4 is a side view showing the state immediately after the work is supported by the support rollers. 5 and 5 are side views showing a state in which the work is conveyed to a predetermined stop position in front of the roll straightening machine, FIG. 6 is a sectional view of the holding device, and FIG. 7 is a sectional view of the rotary bearing device. FIG. 8 is a side view showing a conventional work receiving and conveying device. (1) …… Roll straightening machine, (2) …… Work receiving and conveying device, (3) …… Work, (5) …… Chain, (6)
…… Holding device, (7) …… Supporting roller.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ichiro Hashimoto 6-224 Kaiyamacho, Sakai City, Osaka Prefecture Showa Aluminum Co., Ltd. (72) Inventor Denjiro Kaneko 6224-224 Kaiyamacho, Sakai City, Osaka Showa Aluminum (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, Kaiyama-cho, Sakai-shi, Osaka, Showa Aluminum Co., Ltd. (72) Takashi Takegasa, 6-224, Haiyama-cho, Sakai-shi, Osaka, Showa Aluminum Co., Ltd. (56) References JP-A-59-39417 (JP, A) JP-B 7-16704 (JP, B2) JP-B 7-16705 (JP, B2)

Claims (2)

[Claims] 1. A device for automatically receiving and transporting a workpiece, which is disposed on the exit side of a roll straightening machine and receives a tubular or rod-shaped workpiece sent from the roll straightening machine and transports it to a predetermined position in front of the roll straightening machine. And a holding device that is movable in the front-rear direction and holds the tip of the work piece in a manner that allows rotation of the work piece, and operates up and down along the axis of the work piece to support the rear outer peripheral surface of the work piece from below. The supporting device is provided with a free supporting roller, and the holding device starts from a standby position in the rear close to the exit of the roll straightener and moves forward, and is sent out from the roll straightener at the initial point of the movement. The support roller is controlled so that it can hold the front end of the work, and the support roller is kept in a non-contact state with the work by waiting in the lower standby position during the work straightening by the roll straightening machine. The work from the roll straightening machine is characterized in that, while being leaned, when the rear end of the work is sent out from the roll straightening machine, it rises and is operated to support the rear part of the work. Receiving and transporting device. 2. The holding device is attached to the upper side of an endless chain that circulates in the front-rear direction,
The apparatus for receiving and conveying a work from a roll straightening machine according to claim 1, wherein the support roller is attached to a lower side of the chain at a position rearward of an attachment position of the holding device.