JPS6371017A - Crossfeed motion for long circular work - Google Patents

Abstract

PURPOSE:To make a long circular work conveyable to the specified position without entailing any damage and vibration to it, by installing a pair of liftable rolls, stopping the long circular work at an attitude orthogonal to a trunk travel direction, in a truck capable of reciprocatively driving along a rail. CONSTITUTION:After each truck 4 is traveled and moved to the lower part of a long circular work W, a pair of rolls 14 in each truck 4 is made to go up via a lifting drive mechanism 17, whereby the work W is received to the work receiving surface 14a formed with these paired rolls 14 at plural spots in the axial direction, and this work W is lifted up from a holding surface of a stocker or the like. Next, after each truck 4 is driven and travels and moved to the specified conveying position, these paired rolls 14 in each truck 4 are made to go down via the lifting drive mechanism 17, and the work W is delivered to the specified position without giving any damage and an impact due to rolling motion. At this time, if one side of the rolls 4 is rotated by a rotating drive mechanism 27, the work W is transversely feedable to the next process in the state that the work W is rotated to the attitude required for the next process.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention involves processing relatively long cylindrical or cylindrical workpieces, such as steel pipes, between multiple processing steps in a preset order. Equipment that performs various types of loading such as marking, cutting, and welding while automatically and continuously conveying
This invention relates to a traversing device for a long circular workpiece, which is used to transport the workpiece in a direction perpendicular to its axis.

[Prior Art] This type of transverse conveying device, which has been generally known in the past, has a frame and rails fixedly installed at an angle in the direction of the conveying force of the workpiece, and a long circular workpiece is transported between the frames and rails. There is also a type that rolls on an inclined surface. Also known is a type in which a plurality of chain conveyors are installed in parallel at appropriate intervals, and a long circular workpiece is loaded and conveyed across the plurality of chain conveyors L.

[Problems to be Solved by the Invention] Among the conventional apparatuses described above, the transfer type is likely to damage the outer surface of the workpiece during transfer, and is also noisy, creating a poor working environment. Particularly when the weight of the workpiece is large, the impact force when stopping at a predetermined conveyance position is large and the stopping position accuracy is poor, which can easily cause problems in the next process or there is a risk of the workpiece jumping out from the stopper. Works that have a small weight or are long and curved have the disadvantage of being difficult to roll. In addition, the conveyance type using a chain conveyor is noisier than the above-mentioned transfer type, and generates large vibrations on the workpiece, causing problems when paying.
It cannot be used as factory equipment.

Furthermore, in any of the transfer types mentioned above using the transfer type chain conveyor, markings or incisions made on the outer circumferential surface of the workpiece in advance in the previous process will be placed at a predetermined position in the next process such as cutting. If such a positioning/rotation function is required, a dedicated work rotation device must be installed separately from the traverse feed device, and the entire device Not only does the structure become more complex.

It is necessary to perform the cross-feeding action and the positioning/rotation action one after the other, which increases the number of steps and is not favorable in terms of work efficiency. This invention was made to solve the above-mentioned problems, and regardless of the workpiece's size, diameter, or weight, it can be used without causing scratches or vibrations, and without causing unexpected changes in posture. To provide a cross-feeding device for a long circular workpiece, which can reliably and safely transport it to a predetermined position without causing any damage, and can perform desired positioning rotation.

[Means for Solving the Problems] In order to achieve the above object, the transverse feeding device for long circular workpieces according to the present invention moves a trolley capable of reciprocating along a rail in the direction of its travel. A plurality of carts are arranged at appropriate intervals in the direction orthogonal to the cart, and each of these carts has a pair of workpiece receiving surfaces that receive a long circular workpiece with its axis perpendicular to the running direction of the cart. The present invention is characterized in that the rollers are arranged side by side, and are provided with an elevating drive mechanism that lowers the pair of rolls A and a rotation drive mechanism that drives and rotates one of the pair of rolls.

[Operations] In this invention with the above-described configuration, each cart is moved to the lower part of a long circular workpiece that is held in a front-processing device or sent out from the front-processing device d and held in a stocker or the like. Then, by raising the pair of rolls on each trolley through the lifting drive mechanism, the long circular workpiece is moved to a workpiece receiving surface constituted by the pair of rolls at multiple locations in the axial direction of the workpiece. and lifted from the holding surface of the pre-processing device, stocker, etc. This kind of work receiving +)-
When the holding position is reached, each cart is driven and moved to the predetermined unloading position, and then the lift drive +2
By lowering the pair of rolls on each trolley through the mechanism, the long circular workpiece can be transferred to a predetermined position without any damage or impact caused by transfer.

In addition, if you are confident that the workpiece will be rotated to the required posture in the next process, drive and rotate one of the rolls during the above-mentioned cross-feeding or at the end position of the cross-feed to adjust the desired rotational posture to the desired position during the cross-feeding process. It can only appear within.

[Example] Hereinafter, one embodiment of the present invention will be explained based on the drawings.

FIG. 1 shows a cross-feed device (A) of the present invention, a laser marking device (13) on the cross-feed start end side, and a sizing cutting device (C) on the cross-feed weft end side. The overall layout of the continuous processing section is shown in which a conveyor device (D) for cutting to size is arranged to convey a long circular workpiece (I#) along the line direction, and Figure 2 is a cross-sectional view of it. This is a view in the direction of arrows, and in the same figure, (E) takes out a long circular workpiece (W) stored in a storage shelf outside 1 and 4 and passes it through a chute (F) to the laser marking device. (B) A transport vehicle for supplying workpieces for rolling motion.

(G) is a movable stopper device;
) is sent out from the workpiece (W
) protrudes upward so as to come into contact with and stop at the center position on the turning rolls (b), (b) of the laser marking device U(B).

The workpiece (W), which has been marked with a laser to indicate the cut point in the next step by the laser marking device (8), is retracted downward in order to be sent out via rolling motion in a direction perpendicular to its axis. , is configured to be swingable and switchable via the cylinder (g). (]), (1) is a bar member for a pair of two-strip stocks, and is marked -
The work delivery part side of the marking device (B) is set at a high incline, and two types of long and short workpieces are installed, either in multiple rows at appropriate intervals in the axial direction of the long circular workpiece (W), or in parallel positions with each other. It is fixedly installed on the floor via supporting legs (2), (2). These multiple rows of stock bar members (1),
At the lower end of the slope of (1), a conveyor device (D) for cutting to size is arranged as shown in (1), which consists of a group of water rolls (d,) and a group of vertical rolls (d2), which have rotational axes that are substantially orthogonal to each other. has been done. 3) is a rail for running the bogie, and is fixedly laid on the floor surface at each of the f-direction portions of the plurality of rows of stock bar members (+) and (1). , (4) are the materials transferred to the rail (:l) J: through the wheels (5), and these materials (4) are attached to the frame (6).
) are integrally connected. (7) Among the multiple rows of rails (3), there are chain lats fixed on the floor along the sides of two rails (3) located at an appropriate distance from each other. The running sprocket (8) that engages with the rack (7) or Figures 3 and 4.
As clearly indicated in r-1, the above bogie connection frame (6
), and the traveling sprocket (8) or the transmission sprocket (9), (I
n), a drive motor (13) fixed to the frame (6)L via a chain (11) and a rotating shaft (12);
With the operation of this drive motor (13), each bogie (4) is connected to It is constructed such that it can be integrally moved in a reciprocating manner along the rail (3). (14) and (14) are a pair of rolls attached to each of the above-mentioned carts (4) via a flaket (18), and with the upper outer peripheral surfaces of these pair of rolls (14) and (+4), A workpiece receiving surface (14
A) consists of These pair of rolls (+4),
(14) is a pair of stock bar members (+) in 42;
(1) It moves in the driving direction of the trolley (4) at a position sandwiched between them, and these pair of rolls (14), (14) are connected to a linear guide shaft as clearly shown in Fig. 7. (15) and cylinders (6) and (16) disposed on both sides of the lift mechanism (17), which is movably supported on the platform fli (4). (19) is an E-type trolley motor, and as shown in Figures 5 and 6, the motor (19) is interlocked with sprockets (20), (21), and a chain (22). The rotation transmission shaft (23) is configured to have a length α equal to that of the plurality of carts (4), and this rotation transmission shaft (
23), the sprockets (24), (25), and the shaft (14A) of one roll (14) via the chain (26).
) by interlocking and connecting the rolls (14) to form a rotational drive mechanism (27) for the rolls (14).
, (14) has a turning roll function. (28) and (29) are the pair of stock bar members (1);
Among them, the sleeve (28) near the lower end of the inclination is sent out by the rolling action from the mark kink device vL (B) as the movable stopper device (G) moves downward. There is a stopper (
29) was fed horizontally by a horizontal feeding device (A) as shown in L! - The 5-meter circular workpiece (W) is transferred to the above-mentioned transport device (D).
The cross-feeding range (stroke) of the cross-feeding device (A) is determined by the receiving point of the stopper (28) and the conveyance device ff1 (D). Within the range indicated by (S) in Figure 2 that connects a point slightly inclined downward from the workpiece placement surface, within the stroke range (S), where can you place the long circular workpiece (W)? It is possible to carry it horizontally and unload and hold it on the pair of stock bar members (1) and (1).

Next, a brief description will be given of the lateral feeding operation of a long circular workpiece in the structure of the above embodiment.

The laser marking device 'a'
The outer peripheral surface of the elongated circular workpiece (W) that has been fed onto the turning rolls (1) and (b) of (B) and stopped is marked with a laser at this position. Then, as the movable stopper device (G) swings and retreats downward, the marked long circular workpiece (W
) is sent out in a rolling motion along the upper surface of the multiple rows of stock bar members (1), (1) in a direction perpendicular to its axis, and when it comes into contact with the stopper (28). It is caught and held. Stopper like this (28)
The traversing device (A) is placed below the long circular workpiece (9i) held by the trolley (4).
By moving the rolls (14), (14) pair via the lifting drive machine 41) (t7), the long circular workpiece (W) is stocked with the stocking bar member (1),
(1), and then remove it from the workpiece receiving surface of the trolley (4) (
Pass the baton to the 14A) side. Next, the trolley (4)
is driven to travel along the rail (3) toward the conveyance device (D), and stopped when it reaches the conveyance surface of the conveyance device (D), and the elevating and lowering rigid mechanism (17) is activated. By lowering the roll (14), (14) pair through the
The long circular workpiece (W) is transferred onto the transport surface of the transport device (D). When a workpiece is present on the conveying surface of the conveying device (D) during such a lateral feeding operation, the cart (4) is stopped at a position in front of the conveying device (D). Let roll (14), (1
4) By lowering the pair, the long circular workpiece (W)
is once unloaded onto the inclined stock bar member (1), (1) so that it is received and held by the stopper (29), and when the conveyance surface of the conveyance device (D) is empty. After the pair of rolls (14) and (14) rise and the pair of driving rolls (14) and (14) of the cart (4) descend, the material is transferred from the temporary receiving position 4 onto the conveyance surface. It is.

In addition, during the above-described cross-feeding operation, by appropriately driving and rotating one of the rolls (14) via the rotation drive mechanism (27), the cutting marks marked in the previous process or the cutting device ( It is possible to rotate the workpiece (W) into a posture that allows it to move one step in order to detect the cutting position according to C).

It should be noted that the lateral feeding device according to the present invention can be applied to transportation between any devices that require the rotation of a work other than the lateral feeding between a marking device and a cutting device as shown in the above embodiment. Also, by coating the outer circumferential surface of the L foot roll (14) with urethane resin or the same material as the workpiece, the outer circumferential surface of the workpiece can be more securely prevented from being scratched. It can be made into something good.

(Effects of the Invention) As can be understood from the detailed description above, the sowing according to the present invention does not damage the outer surface of the workpiece or cause unnecessary damage to the entire workpiece, regardless of the workpiece's size, diameter) or weight. It is possible to reliably and safely cross feed without causing deformation due to vibration or impact, and there is almost no noise, creating a good working environment. Moreover, since positioning rotation can be performed simultaneously and in parallel with the cross-feeding operation, the overall number of processes can be reduced when it is necessary to match the circumferential position of the workpiece in both processes before and after cross-feeding. This has the effect of significantly improving work efficiency.

[Brief explanation of the drawing]

FIG. 1 is an overall layout diagram showing an embodiment of the present invention;
Fig. 2 is a sectional view taken along the line II-II in Fig. 1, Figs. 3 and 4 are side views and partially cutaway front views showing the drive mechanism for driving the bogie, and Figs. 5 and 6. 7 is a side view and a partially cutaway front view showing the roll rotation drive mechanism, and FIG. 7 is a longitudinal sectional side view showing the roll elevation drive mechanism. (1) is a stock bar member, (3) is a rail for running a bogie, (4) is a bogie, (6) is a frame for connecting a bogie, (1)
4) is the roll, (14^) is the work receiving surface, (17) is the lifting drive mechanism, (27) is the roll rotation drive mechanism, (28
), (29) is a stopper, and (W) is a long circular workpiece.

Claims (2)

[Claims] (1) A plurality of carts capable of reciprocating along the rails are arranged at appropriate intervals in a direction perpendicular to the direction of travel, and each of these carts carries a long circular workpiece with its axis set above the A pair of rolls constituting a workpiece receiving surface that is received in a posture perpendicular to the running direction of the trolley are arranged in parallel, a lifting drive mechanism that raises and lowers these pair of rolls, and one roll of the pair of rolls. A lateral feed device for a long circular workpiece, characterized by being equipped with a rotational drive mechanism that drives and rotates the workpiece. (2) A stock bar member is provided beside the traveling path of the truck in a parallel position along the traveling direction of the truck, and
2. The lateral feeding device for a long circular work according to claim 1, wherein the stock bar member is provided with a stopper for receiving and holding the long circular work in a stationary state.