JPH0756256Y2 - Long work loading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a loading device serving as a carry-in part for sending a long work having a circular outer circumference such as a steel rod or a steel pipe to a cutting device or the like.

(Prior art and its problems) When cutting a long circular work such as a steel rod or a steel pipe with a cutting device such as a band saw, the work is placed in front of the cutting device in the axial direction on multiple horizontal rollers. A work transfer section that is movably supported is provided, and in this transfer section, the work is positioned by sandwiching it from both sides by positioning rollers so as to align it with the reference position of the cutting section. Therefore, in order to automatically carry in the work to the transfer section, a plurality of works are made to stand by in a parallel state by a stopper on the slanted carry-in rail so that they can roll, and the first work waiting A loading device is used to position and position one by one on the supporting roller of the transfer section by an appropriate means.

By the way, when the work diameter to be handled differs depending on the lot, the position of the top work or the transfer start position on the rail is changed according to this diameter, and one of the positioning on both sides of the work on the transfer part is fixed to the cutting device. If the reference position is set as described above, it is necessary to adjust the other positioning position according to the diameter. In addition, in transferring a work, if the work is impacted and dropped on the horizontal roller of the transfer section, the work may jump up due to the recoil, which is dangerous and may cause a positional deviation or damage to the work and the member of the transfer section. There is a risk that the impact sound will deteriorate the working environment.

However, in the past, a loading device capable of handling a change in the diameter of a work to be handled with a simple operation means and transferring the work from the inclined carrying-in rail to the transfer section without causing an impact drop has been proposed. It was not realized.

(Means for Solving the Problems) In order to solve the above conventional problems, the present invention provides
A work transfer section 1 provided with a plurality of horizontal rollers 2 for supporting a long work having a circular outer circumference so as to be movable in the axial direction thereof;
A plurality of inclined carrying-in rails 4 which extend outward from one side of the transfer unit 1 in an obliquely upward direction and support a plurality of the work pieces so that they can be rolled in parallel, and are movable in the longitudinal direction of the rails 4. There is a movable stopper 6 for receiving the leading work supported on the rail, moving and fixed position lock operating means 7 and 8 of the movable stopper 6, and the rail 4
A work transfer tool 3 having an inclined support surface 12 for lifting and transferring the top work on the horizontal roller 2 of the transfer section 1, and a work transfer tool 3 that can freely move up and down, and is attached to the rail 4 installation side of the transfer section 1. And a fixed positioning member 15 for positioning one side of the work on the horizontal roller 2 at a reference position, and a fixed positioning member 15 movably installed in the perspective direction with respect to the fixed positioning member 15 for fixedly positioning the work on the horizontal roller 2. Member 15
And a movable positioning member 18 for positioning on the opposite side of
Further, the present invention proposes a loading device for a long work in which the movable positioning member 18 and the movable stopper 6 are connected so as to interlock with each other in the same direction in a plan view.

(Operation) A plurality of outer peripheral circular long workpieces carried on the inclined carrying-in rail 4 receive the leading workpiece by the movable stopper 6 and stand by in a parallel state. At this time, the position of the movable stopper 6 is adjusted so that the end of the inclined support surface 12 of the work transfer device 3 on the rail upper side is positioned between the leading work and the next work waiting. . Then,
By moving the work transfer tool 3 upward, only the leading work on the rail 4 is lifted to a position higher than the movable stopper 6, and rolls downward on the inclined support surface 12 of the work. Move to the transfer unit 1. Next, by moving the work transfer tool 3 downward, the work is lowered between the fixed positioning member 15 and the movable positioning member 18, and the work is moved from the inclined support surface 12 to the horizontal roller 2 of the work transfer unit 1. Is transferred in a state of being positioned.

Here, the movable positioning member 18 needs to be adjusted in accordance with the diameter of the work so that the distance between the fixed positioning member 15 and the fixed positioning member 15 can be sandwiched between the members, but it is appropriate for the work of a certain diameter. With reference to the positions of the movable stopper 6 and the movable positioning member 18, the horizontal movement amounts of the movable stopper 6 and the movable positioning member 18 to be moved from the reference positions with respect to changes in the diameter of the workpiece to be handled, that is, the workpiece. Rails 4 for increasing diameter
The amount of movement in the downward direction and the amount of movement in the upward direction are almost the same as the work diameter decreases. In the present invention, however, since the movable stopper 6 and the movable positioning member 18 are connected so as to interlock in the same direction in a plan view, they can be moved to the proper positions at the same time only by operating the moving operation means 7 of the movable stopper 6. And is simultaneously fixed by the lock operating means 8 in this position.

(Embodiment) An embodiment of the present invention will be described below with reference to the attached exemplary drawings.

In FIG. 1 and FIG. 2, reference numeral 1 denotes a work transfer section which forms a work carrying-in path to the cutting device A, in which the horizontal roller 2 and the work transfer tool 3 are arranged at appropriate intervals in the longitudinal direction. Has been done. Numeral 4 is an inclined carrying-in rail which is juxtaposed on one side of the work transfer section 1 at an appropriate interval, and extends obliquely upward from the transfer section 1 at a right angle and outwardly at a gentle angle of about 5-10 °. , A fixed stopper 5 on the lower end side
And a movable stopper 6 are provided. 7 is a moving operation means for the movable stopper 6, 8 is a locking operation means, 9 is a hydraulic cylinder for driving the workpiece transfer tool 3, 10 is an interlocking rod for the movable stopper 6, and 11 is a push-pull movement by the hydraulic cylinder 9. It is an interlocking rod for the work transfer tool 3 to be used.

As shown in FIGS. 3 to 5, each horizontal roller 2 has a U-shaped cross-section frame 1a, 1 arranged in parallel on both sides of the transfer path 1.
On the fixed support shaft 2a along the width direction of the transfer path 1 fixed to b,
The inclined loading rail 4 is attached to the side opposite to the side on which the inclined loading rail 4 is disposed (hereinafter referred to as the left side) so as to be freely rotatable.

Each work transfer tool 3 is a plate that is oscillated and swingably supported on the rail 4 installation side (hereinafter, referred to as the right side) of the fixed support shaft 2a located near the rail 4, that is, the surplus portion without the horizontal roller 2. V-shaped slope having a valley 12c in the middle of a right slope 12a having a free end inclined in the same direction as the rail 4 and a left slope 12b inclined steeply in the opposite direction and having a free end. It forms the support surface 12. Then, the work levers 3 are provided with the operating levers 13 in a downward direction from the right end,
Each of the operating levers 13 is connected to the interlocking rod 1 through the connecting pin 13a.
It is pivotally attached to 1. Therefore, by pushing and pulling the interlocking rod 11 by the hydraulic cylinder 9, all the work transfer tools 3 are synchronously driven up and down. It should be noted that each work transfer device 3 is set so that the whole work transfer device 3 is lower than the horizontal roller 2 in the lying posture.

Referring also to FIGS. 6 to 8, each fixed stopper 5 is
Approximately L bolted to the right frame 1b of the transfer unit 1
It is constituted by the rising portion of the character-shaped block 14, and the top surface thereof forms a slightly lower inclined surface 5a in the same direction as the right inclined surface 12a at the upper limit position of the work transfer device 3. Thus, the block 14 is formed with a recess 14a facing the transfer unit 1 side, and a fixed roller 15 as a fixed positioning member for setting the positioning reference position of the work is provided in the recess 14a via the vertical support shaft 15a. It is mounted so that it can rotate freely. Further, between the lower part of the block 14 and the left frame 1a, two round shaft-shaped guide rods 16 and 16 are horizontally installed in parallel and slidably fitted on the both guide shafts 16 and 16. A movable roller 18 as a movable positioning member is rotatably attached to the moving block 17 via a vertical support shaft 18a. Each of the inclined carrying-in rails 4 is composed of a U-shaped frame having a downward cross section, and the lower end side of the inclined carrying-in rail 4 is externally fitted and welded to the horizontal portion of the block 14.

As shown in FIG. 6, each movable stopper 6 has a substantially inverted T-shape including a prismatic base portion 6a inclined in the same direction as the rail 4 and a stopper portion 6b protruding upward from an intermediate position thereof. A guide pin 20 protruding from the rail 4 is inserted into each of the long holes 19 formed in the base portion 6a along the lengthwise direction of the rail 6a, so that the rail 4 It is movably supported on its side in the length direction. Then, a guide pin 21 protruding laterally is fixed to the lower inclined side of the base 6a of the movable stopper 6, and the guide pin 21 is fixed to the movable roller 18 as shown in FIG. 3 and FIG. It is slidably fitted in a vertical guide groove 17a provided on the side surface of the sliding block 17, and therefore the movable stopper 6 and the movable roller 18 are fitted through the fitting.
Are interlocked with each other in the same direction in a plan view, and the relative vertical displacement between the movable stopper 6 and the movable stopper 6 is absorbed by the fitting portion.

Further, a triangular interlocking plate 22 is pivotally mounted on a lower side of each inclined loading rail 4 adjacent to each movable stopper 6 by a vertical support shaft 22a so as to be horizontally swingable, and is pivotally supported at one end of the interlocking plate 22. The roller 23 is fitted in the groove 24 formed on the lower side of the movable stopper 6. Further, the work transfer section 1
The interlocking rod 10 and the interlocking plates 22 arranged along the are interlockingly connected by a connecting pin 22b. As shown in FIGS. 3 and 6, the moving operation means 7 is pivotally attached to the bottom frame 1c below the work transfer section 1 via the pivot 25 so as to be swingable left and right. The operation lever 26 is provided, and the pin 26a protruding from the free end portion of the operation lever 26 is fitted into the recessed groove portion 10a provided on the interlocking rod 10 to swing the operation lever 26. Accordingly, the interlocking rod 10 moves in the lengthwise direction to rotate the interlocking plate 22, and the rotation causes the movable stopper 6 to move along the rail 4. Further, the fixed position locking means 8 fixes a guide plate 27 having an arcuate guide elongated hole 27a centering on the pivot 25 to the left end portion of the bottom plate 1c as shown in FIGS. 3 and 6. A lock bolt 8b with a lever 8a that penetrates the elongated hole 27a is screwed into the vicinity of the grip portion 26b of the operating lever 26, and the operating lever 26 is guided by tightening the lock bolt 8b by rotating the lever 8a.
Can be fixed to 27. The guide plate 27 is provided with a scale (not shown) for displaying the work diameter.

Next, a method of using the loading device having the above structure will be described with reference to FIG.

First, in the case where the work having a circular outer periphery such as a steel rod or a steel pipe is the small-diameter work W ₁ shown by the one-dot chain line in the figure, the moving operation means 7
Thereby, the movable stopper 6 is set to the forward position shown by the one-dot chain line in the figure, and the movable roller 18 is also arranged on the right side of the transfer section 1 as shown by the one-dot chain line in the figure. Further, the work transfer tool 3 before the transfer operation is standing by in a horizontal laid posture (one-dot chain line in FIG. 5). Here, the distance in the width direction of the transfer path 1 between the movable roller 18 as the movable positioning member and the fixed roller 15 as the fixed positioning member is slightly larger than the diameter of the work W ₁ . Then, the work W ₁ is sequentially placed on the inclined carrying-in rail 4 in parallel with the transfer unit 1, and is rolled on the rail 4 by gravity so that the leading work W ₁ is received by the movable stopper 6. And wait in parallel.

Next, the work transfer tool 3 is interlocked with the hydraulic cylinder 9.
When the stand 11 is rotated by a predetermined angle in the standing direction by the movement of 11 (solid line in FIG. 5), only the _first work W _{1 in} the parallel state on the rail 4 is the right inclined surface of the inclined support surface 12.
Lifted on 12a. That is, the positional relationship among the movable stopper 6, the movable roller 18, and the side edge 3a of the work transfer device 3 is
With the work positioned between the movable roller 18 and the fixed roller 15, the side edge 3a of the work transfer device 3 is set so as to come between the leading and the next work waiting on the rail 4. There is.

The workpiece W ₁ lifted by the workpiece transfer tool 3 rolls on the right inclined surface 12a by its own weight because the right inclined surface 12a is higher than the top surface of the movable stopper 6 due to the upper limit of movement of the transfer tool. Then settle in the valley 12c. When the interlocking rod 11 is moved by the hydraulic cylinder 9 in this state in the opposite direction to the previous time and each work transfer tool 3 is returned to the original lying state, the work W ₁ first moves to the inclined surface 5a of the fixed stopper 5. Mounted on this slope 55
After rolling on a, it descends between the fixed roller 15 and the movable roller 18, and is positioned and mounted on the horizontal roller 2. In this descending process, the workpiece W ₁ is transferred again from the inclined surface 5a to the workpiece transfer tool 3 side, and is supported by the left inclined surface 12b of the inclined support surface 12 under the workpiece transfer tool 3. It slowly descends with the movement. Therefore, it is placed on the horizontal roller 2 with almost no impact.

In this transfer process, the work W ₁ that was next on the rail 4 before the transfer is moved by the work transfer tool 3 from the time when the _first work W ₁ is lifted by the work transfer tool 3. It is received by the side edge 3a until it returns to the lying posture,
By this return, the work W ₁ and the succeeding work W ₁ roll on the rail 4 and are received by the movable stopper 6.

The work W ₁ thus transferred to the transfer unit 1 is cut by the cutting device A.
Is intermittently sent to the cutting device side in the axial direction by the work carrying-in means (not shown) and is cut into pieces each having a required length.
However, each time the workpiece W ₁ is cut, the transfer operation described above is repeated, so that the workpiece W ₁ on the rail 4 is
Are sequentially transferred one by one to the transfer unit 1 and used for cutting.

On the other hand, when the work to be handled is switched from the small-diameter work W ₁ to the work W ₂ shown by the chain double-dashed line in the figure, the fixed position locking means 8 is released and then the work W ₂ is moved by the moving operation means 7.
The movable stopper 6 is retracted to the transfer portion 1 side as indicated by the chain double-dashed line in the figure so as to correspond to the diameter of, and is fixed by the locking means 8 at this retracted position. Movable roller by this operation
18 also moves to the left as shown by the chain double-dashed line in the figure, and the fixed roller 15
The distance between and is automatically slightly larger than the diameter of the work W ₂ . Then, the transfer operation can be performed in exactly the same manner as in the case of the small diameter work W ₁ described above.

By adjusting the position of the movable stopper 6 and the movable roller 18 in an interlocking state by the moving operation means 7 as described above, it is possible to easily cope with changes in the diameter of the work, and to handle all the work from the minimum diameter to the maximum diameter of the rail. It is possible to transfer the workpieces waiting on 4 onto the transfer unit 1 one by one from the top without any drop impact.

The fixed stopper 5 in the above embodiment is provided so as to be able to transfer a large weight work having a large diameter beyond the range of application of the movable stopper 6 due to its strength and the like. Is retracted from the fixed stopper 5 to the transfer unit 1 side, and the leading work on the rail 4 can be received. In this case, the applicable work diameter is such that the rail grounding point of the leading work on the rail 4 received by this is inside the side edge 3a of the work transfer tool 3 and the contact point between the leading work and the next work is It may be in a range outside the side edge 3a and has a certain width. Therefore, the position of the movable roller 18 is adjusted in the same manner as described above according to the diameter of the work. That is, the position adjustment range of the movable stopper 6 and the movable roller 18 is set wider than the functional range of the movable stopper 6.

In the present invention, the fixed stopper 5 may be omitted, and the detailed configuration of each member other than this may be changed in various ways other than the embodiment. For example, regarding the workpiece transfer tool 3, if the valley 12c of the inclined support surface 12 is located closer to the transfer unit 1 side than the fixed roller 15 as shown by the alternate long and short dash line in FIG. It is not necessary, and the tilted support surface 12 as a whole may be made into a straight tilted surface by raising the movable roller 18 to serve as a rolling stopper, or the work transfer device 3 may be vertically moved up and down. In addition, a plate-shaped member, for example, a long plate along the length direction of the transfer unit 1 is used as a fixed or movable positioning member that replaces the fixed roller 15 or the movable roller 18, and each movable stopper 6 is provided on the movable side. It is also possible to adopt a configuration in which the boards are linked and linked. It is also possible to integrate the movable stopper and the movable positioning member.

The loading device of the present invention is not limited to the cutting device A, and can be applied to the work loading unit of various processing devices that carry in various processes by loading a long work in the axial direction.

(Effect of the Invention) As described above, according to the long workpiece loading device of the present invention, even if the diameter of the workpiece to be handled changes, the workpieces waiting in parallel on the workpiece carry-in rail can be secured one by one. Since it can be automatically placed on the horizontal roller of the transfer section in a state where the movable stopper and the movable positioning member are adjusted at the same time by one moving operation means Easy and accurate adjustment work when the diameter of the work to be handled changes
Can be done efficiently.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view of the entire loading device,
2 is a front view of the same, FIG. 3 is a plan view showing the details of the main parts of the apparatus, FIG. 4 is a vertical cross-sectional side view of the workpiece transfer tool portion, and FIG. 5 is a line V-V in FIG. Sectional view, FIG. 6 is a longitudinal side view of the movable stopper portion, FIG. 7 is a sectional view taken along line VII-VII of FIG. 3, and FIG. 8 is a sectional view taken along line VIII-VIII of FIG. It is a figure. 1 ... Work transfer section, 2 ... Horizontal roller, 3 ... Work transfer tool, 4 ... Inclined loading rail, 6 ... Movable stopper, 7 ... Movement operation means, 8 ... Fixed position locking means, 12
…… Inclined support surface, 15 …… Fixed roller (fixed positioning member), 18 …… Movable roller (movable positioning member), W ₁ ,
W ₂ …… Work.

Claims (1)

[Scope of utility model registration request] 1. A work transfer section 1 provided with a plurality of horizontal rollers 2 for supporting a long work having a circular outer circumference so as to be movable in the axial direction thereof, and a work transfer section 1 extending outward from one side of the transfer section 1 in an obliquely upward direction. A plurality of slanted loading rails 4 for rotatably supporting a plurality of the work pieces in a parallel state, and a head work piece movable in the length direction of the rails 4 and supported on the rails. The movable stopper 6, and the movement and fixed position lock operating means 7 and 8 of the movable stopper 6,
Up and down work transfer tool 3 having an inclined support surface 12 for lifting the first work on the rail 4 and transferring it onto the horizontal roller 2 of the transfer section 1, and installing the rail 4 of the transfer section 1. A fixed positioning member 15 mounted on one side to position one side of the work on the horizontal roller 2 at a reference position;
A movable positioning member that is movably installed in the perspective direction with respect to the fixed positioning member 15 and positions the work on the horizontal roller 2 on the opposite side of the fixed positioning member 15.
And a movable positioning member 18 and the movable stopper 6 are connected so as to interlock in the same direction in a plan view.