JP3768609B2 - Hoop feeder - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hoop supply device that automatically supplies a hoop, which is a manufacturing material of an electric sewing tube, to a cantilever mandrel type uncoiler disposed on the entrance side of a pipe making mill such as an electric sewing tube or a shaping mill such as a lightweight steel.
[0002]
[Prior art]
An example of a conventional hoop supply device will be described with reference to FIGS.
In the figure, reference numeral 2 denotes a cantilever mandrel type uncoiler disposed on the entry side of an electric sewing tube making mill or the like, and includes a pair of expansion / contraction mandrels 3 and 3 for mounting and holding the hoop 1.
[0003]
The pair of expansion / contraction mandrels 3 and 3 are symmetrically attached to the center of the uncoiler 2 so that they can be swung to the A side (the hoop use side) and the B side (the hoop supply side). The next hoop 1 is inserted into the mandrel 3 on the opposite side (B side) while being unwound and used for pipe making, and the uncoiler 2 is swung immediately after the unwinding of the hoop 1 is completed on the A side. The next hoop 1 on the B side can be moved to the A side for use.
[0004]
The conventional hoop supply device for supplying the hoop 1 to the mandrel (B-side expansion / contraction mandrel 3) is supported by the upper end of the support column 8 and swivels between the hoop place 4 and the B-side expansion / contraction mandrel 3 as shown in FIG. A swivel arm 9, a movable carriage 10 movable along the swivel arm 9, a hoist 5 suspended from the carriage 10, and an L-shaped hook that can be lifted and lowered from the hoist 5 with a chain or a wire rope 6, the hoop 1 in the hoop yard 4 is lifted by the L-shaped hook 6, the turning arm 9 is turned in the direction of the B-side expansion / contraction mandrel 3 as shown by the solid line in FIG. 17, and the operator adjusts the position. The hoop 1 is configured to be inserted into the expansion / contraction mandrel 3 on the B side.
[0005]
By the way, when the hoop 1 is supplied to the ERW pipe making mill, the burr on both side edges generated when the coil is sheared is always supplied in the same direction. In this case, after taking out the hoop 1 from the hoop yard 4, this take-out hoop 1 is once placed in the hoop toppling prevention frame 7 as shown in FIG. Insert into the side expansion / contraction mandrel 3.
[0006]
FIG. 18 illustrates an example of a method for supplying the burr on both side edges always generated in the same direction when the coil is sheared.
In the state where the wide coil is sheared into a plurality of rows, for example, four belt rows and wound as shown in the lower diagram of FIG. 18, the directions of the loops (e) of the hoops 1a and 1c and the hoops 1b and 1d are reversed. In the example shown in FIG. 18, if the hoop 1 is supplied to the mill with the C surface facing up, the hoops 1 a and 1 c are unloaded from the uncoiler 2 and the hoops 1 b and 1 d are unloaded. By doing so, the burr (e) on both side edges is in the same direction as shown in the E-I section in FIG. For this reason, when the hoop 1 is inserted by the hoop supply device shown in FIGS. 16 and 17, the hoops 1a and 1c are once placed in the hoop overturn prevention frame 7, the L-shaped hook 6 is exchanged to the opposite side, and the hoop 1 is lifted again. In the inverted state, it is inserted into the expansion / contraction mandrel 3 on the B side.
[0007]
[Problems to be solved by the invention]
The conventional hoop supply device has the following problems.
(1) Since the L-shaped hook 6 suspended by a chain or wire rope is not stable, an operator during transportation must guide the hoop 1 by hand, and automatic operation cannot be performed. Further, if the hoop 1 having a small width and a large outer diameter is lifted by the hook 6, there is a risk of falling or dropping during the lifting work.
(2) The hoop 1 of the hoop yard 4 is usually placed in close contact with each other, and if it is lifted by the L-shaped hook 6 having a long load receiving portion, there is a risk of lifting it to the next adjacent hoop. It is necessary to prepare several types of L-shaped hooks with different lengths of the load receiving part and use them in exchange according to the hoop width.
(3) Since there is only one hoop (B side hoop 1) that is ready after the hoop currently used in the mill (A side hoop 1) on the B side in FIG. . For this reason, the hoop yard 4 where the supplied hoops are placed together must be in the vicinity of the uncoiler 2, and the mill layout may be restricted, and a facility for separately transporting the hoops must be provided. Sometimes.
{Circle over (4)} In order to align the burr (e) generated during coil shearing in the same direction, it is necessary to temporarily place the hook 6 on the opposite side and then insert it into the mandrel 3.
[0008]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a hoop supply device that sequentially takes out the hoops 1 one by one from the hoop yard and supplies the hoops 1 to the uncoiler 2 of the mill M. A FOUP conveyance path E that is parallel to the FOUP 1 that is attached to the expansion / contraction mandrel 3, and a FOUP removal conveyance path D and a FOUP installation conveyance path F that are respectively connected orthogonally to both ends of the FOUP conveyance path E. The hoop mounting carriage 40 is movably disposed on the hoop mounting carriage F, and the hoop removal carriage D is provided with an upper carriage 11 having a hoop extraction mandrel 13 and the upper carriage 11. A lower carriage 20 that enters the lower portion of the vehicle and receives the hoop 1 from the upper carriage 11 is disposed so as to be able to travel, and the lower carriage is disposed on the hoop conveyance path E. 0 conveying device 30 for conveying the FOUP 1 to the transfer position relative to receive the hoop mounting carriage 40 from traveling freely arranged,
The hoop take-out mandrel 13 of the upper carriage 11 is capable of turning and raising / lowering, and the lower carriage 20 is opposed to the raising / lowering stage 23 supporting the hoop 1 while maintaining a hoop receiving interval on the raising / lowering stage 23. The hoop toppling prevention side plates 24 and 25 are arranged in such a manner that the conveying device 30 travels on the hoop conveying path E and is bifurcated and fixed below the trolley 31. The hoop suspension hook 34 is provided, and the hoop mounting carriage 40 has a dolly hook 42 that can be raised and lowered .
[0010]
[Action]
The hoops 1 are taken out one by one from the hoop mounting table 14 by the expansion / contraction mandrel 13 of the upper carriage 11 and placed on the lower carriage 20 so that the expansion / contraction mandrel 13 is retracted upward. At this time, what needs to be reversed is placed on the lower carriage 20 after the mandrel 13 is rotated 180 degrees. The lower carriage 20 moves to below the conveying device 30 and hooks the hoop 1 on the hook 34 of the conveying device 30.
[0011]
The conveying device 30 moves to a hoop delivery position with respect to the hoop mounting carriage 40, and at this position, the hook 42 of the hoop mounting carriage 40 enters the center hole of the hoop 1 and rises to receive the hoop 1. Since this hoop mounting carriage 40 is located in front of the mandrel of the uncoiler 2, it moves forward and waits immediately before the uncoiler mandrel 3. When the uncoiler 2 becomes empty, it further advances from the standby position, and the hoop 1 is inserted into the mandrel 3. When the diameter of the mandrel 3 of the uncoiler 2 is expanded and the hoop 1 is held by the uncoiler 2, the hoop-equipped carriage 40 moves backward and the supply of the hoop to the uncoiler 2 is finished.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS.
FIG. 1 is a schematic plan view when the hoop supply device of the present invention is installed in a U-turn type electric sewing tube making mill M. FIG.
[0013]
In the figure, reference numeral 2 denotes a cantilever mandrel type uncoiler disposed on the entry side of the electric sewing tube making mill M, and includes a pair of expansion / contraction mandrels 3 and 3 for mounting and holding the hoop 1. Can be turned to the hoop use side and the hoop supply side.
[0014]
E is a hoop conveyance path parallel to the hoop 1 attached to the expansion / contraction mandrel 3 of the uncoiler 2 as shown in FIG. 1, and a hoop take-out conveyance path D and a hoop installation conveyance path F at a facility location for supplying the hoop to the uncoiler 2. It is formed. The FOUP delivery path D and the FOUP mounting path F are formed in a state of being connected to both ends of the FOUP transport path E at right angles.
[0015]
5 and FIG. 6 is a hoop mounting table 14 that serves as a hoop storage site, and a plurality of hoops 1 to be supplied to the uncoiler 2 are installed in close contact with each other and at an inclination angle of 2 to 3 degrees with respect to the horizontal plane. It is comprised from the base part 14a and the backrest-type support wall 14b on which the hoop 1 installed on this base part 14a leans.
[0016]
The hoop take-out carrying path D is a wide gauge rail d1, d1 laid as shown in FIG. 2 and FIG. 5 so as to be parallel to the installation floor of the hoop stand 14 with the hoop stand 14 interposed therebetween, and a hoop between the wide gauge rails d1, d1. 2 and 4, narrow rail rails d2 and d2 are laid on the recessed floor lower than the installation base floor, and an upper carriage 11 having an expansion / contraction mandrel 13 for taking out a hoop runs on the wide gauge rails d1 and d1. A lower carriage 20 is provided on the narrow gauge rails d2 and d2 so as to freely enter the lower part of the upper carriage 11 and receive the hoop 1 from the upper carriage 11.
[0017]
The upper carriage 11 is a portal type carriage as shown in FIG. 7 having wheels running on the wide gauge rails d1 and d1, and is located at the hoop receiving position according to the width of the hoop 1 inserted into the mandrel 13 as shown in FIG. A stopper 15 to be positioned, a tilting cylinder 16 for changing the axis of the expansion / contraction mandrel 13, a turning device 17 for rotating the mandrel 13 around a vertical axis passing through the center of the upper carriage 11, and the mandrel 13 up and down And an elevating cylinder 18 to be moved.
[0018]
The lower carriage 20 is a self-propelled carriage equipped with a driving device that travels while being guided by narrow gauge rails d2 and d2, and includes a hoop support portion 23a supported by an X-type pivot support member 21 and moved up and down by the operation of the cylinder 22. And a pair of front and rear hoop fall prevention side plates 24, 25 having notches 24a, 25a disposed at the center so as to face each other while holding the hoop receiving interval on the lift 23, A screw shaft 26 that adjusts the distance between the hoop toppling prevention side plates 24 and 25 according to the width of the hoop 1 is provided (see FIGS. 8 and 9).
[0019]
The hoop conveyance path E is composed of elevated tracks e1 and e1 supported at a predetermined height by a plurality of portal frames 35, and the hoop 1 is received from the lower carriage 20 on the elevated tracks e1 and e1. A transfer device 30 for transferring the transfer position to the delivery position 40 is provided.
[0020]
The transport device 30 has a wheel 32 that engages with the elevated tracks e1 and e1, a trolley 31 that includes a drive device 33 that drives the wheel, and a bifurcated hoop that is suspended and fixed to the lower side of the trolley 31. The suspension hook 34 is provided, and the hoop 1 is hooked on the hook 34 as shown in FIGS.
[0021]
The hoop-mounting path F is composed of floor-laying parallel rails f1 and f1 extending in the hoop insertion direction with respect to the expansion / contraction mandrel 3 of the uncoiler 2, and includes a hoop-mounting carriage 40 that runs while being guided by the rails f1 and f1. .
[0022]
The hoop-equipped carriage 40 is a self-propelled carriage equipped with a drive device that travels while being guided by the rails f1 and f1. The carriage hook 42 is arranged on the front side of the stationary base 41 as shown in FIG. A lifting cylinder 43 that moves the hook 42 up and down and a hoop positioning body 44 attached to the hook 42 are provided (see FIGS. 12 and 13).
[0023]
Next, the operation from taking out the hoop 1 from the hoop table 14 and placing it on the upper carriage 11 will be described with reference to FIGS.
The plurality of hoops 1 installed on the hoop table 14 are installed on the table 14a with an inclination angle of 2 to 3 degrees with respect to the horizontal plane. On the side opposite to the top carriage 11 of the hoop table 14, there is a backrest-type support wall 14 b against which the hoop 1 leans. Therefore, when the hoop 1 is installed on the table part 14 a, the hoop 1 is tilted with respect to the horizontal plane. The hoop overturning to the cart 11 side can be prevented.
[0024]
The operation of taking the hoop 1 starts by advancing the upper carriage 11 toward the hoop table 14 as shown by an imaginary line in FIG. The upper carriage 11 advances and stops just before the expansion / contraction mandrel 13 for taking out the hoop hits the side surface of the hoop. Next, the expansion / contraction mandrel 13 is lifted by the operation of the lifting cylinder 18 and stops at the position of the hole at the center of the hoop.
[0025]
At this time, since the axis of the expansion / contraction mandrel 13 is at the same angle as the inclination angle of the hoop mounting table 14a, when the upper carriage 11 is advanced again, the mandrel 13 in a reduced diameter enters the hoop center hole, The stopper 15 that has been previously positioned according to the hoop width stops when it comes into contact with the side surface of the hoop. Here, the diameter of the expansion / contraction mandrel 13 is expanded, and the axis of the expansion / contraction mandrel 13 is returned to the horizontal position by the operation of the tilting cylinder 16 while being raised by the operation of the elevating cylinder 18. Even if a plurality of hoops 1 are placed in close contact with each other on the hoop mounting table 14, the length of the expansion / contraction mandrel 13 is set to a length that matches the hoop width by the positioning stopper 15, so that the next adjacent hoop is erroneously set. I will not pick it up.
[0026]
Next, as shown in FIG. 14, the upper carriage 11 stops on the lower carriage 20, the hoop 1 is lowered to the lower carriage 20, the diameter of the expansion / contraction mandrel 13 is reduced, and then the mandrel 13 is raised to a position where it does not hit the hoop 1. stand by. Further, before the hoop that needs to be reversed is lowered to the lower carriage 20, it is rotated 180 degrees by the turning device 17 to change the direction as shown in FIG. The hoop 1 is placed on the lifting platform 23 of the lower carriage 20 while being sandwiched between the fall prevention side plates 24 and 25 as shown in FIG. The interval between the fall prevention side plates 24 and 25 can be adjusted by a screw shaft 26 and is positioned in advance according to the hoop width.
[0027]
The lower carriage 20 that has received the hoop 1 advances to the position of the conveying device 30 as shown in FIGS. 14 and 15, and the elevator 23 is raised as shown in FIG. It is hung in the state as shown in the left end of FIG. The hook 34 has a bifurcated shape as shown in FIG. 11, and the hoop 1 is hung as shown in FIG. 10 regardless of the width of the hoop 1 and is suspended as shown in FIG. There is no danger. The hook 34 is suspended from the trolley 31 that travels on the track, and moves to the hoop delivery position with respect to the hoop mounting cart 40 by the track traveling of the trolley 31.
[0028]
Next, a hoop delivery from the conveying device 30 to the hoop mounting carriage 40 and a hoop insertion operation to the uncoiler 2 will be described with reference to FIGS.
The standby position of the hoop mounting carriage 40 is on the opposite side of the uncoiler 2 with respect to the transport device 30 (see FIG. 12). When the conveyance device 30 stops in front of the hoop mounting carriage 40 as shown in FIG. 12, the hoop mounting carriage 40 moves forward and the carriage hook 42 enters between the hooks 34, 34 of the conveyance device 30.
[0029]
When the hoop positioning body 44 attached to the cart hook 42 comes to the hoop side surface contact position, the forward movement of the hoop mounting cart 40 is stopped, and the cart hook 42 is further raised by the operation of the elevating cylinder 43 to remove the hoop 1 from the conveying device 30. Receive. Thereafter, the hoop-equipped carriage 40 moves forward to the expansion / contraction mandrel 3 side of the uncoiler 2 as shown by an imaginary line in FIG. 12 and stops at the standby position.
[0030]
When the uncoiler 2 is ready to receive the hoop, the hoop-equipped carriage 40 moves forward again and stops at the position where the hoop 1 is set. Here, the hook 42 is lowered and the hoop 1 to be set is placed on the expansion / contraction mandrel 3. When the diameter of the expansion / contraction mandrel 3 is increased, the hoop 1 is fixed, and the hoop-equipped carriage 40 moves backward and returns to the initial standby position.
[0031]
Without waiting for all the hoops of the uncoiler 2 to be consumed, the hoops 1 can be placed on the upper carriage 11, the lower carriage 20, the conveying device 30, and the hoop-equipped carriage 40 to stand by.
[0032]
【The invention's effect】
The hoop supply device according to the present invention has the gist of the configurations described in claims 1 and 2 of the claims, and therefore has the following effects.
(1) A hoop having a narrow width and a large outer diameter that is difficult to handle, for example, one having a width / outer diameter of about 0.02 to 0.03, can be stably transported and inserted into the expansion / contraction mandrel 3 of the uncoiler 2.
(2) Since it is not necessary for the operator to directly touch the hoop or the hanging tool, a safe operation can be performed.
(3) Since a hoop can be placed on each device between the hoop mounting table 14 and the uncoiler 2 and can stand by, there is no time for the hoop on the hoop mounting table 14 to disappear and the next hoop is supplied.
(4) The hoop can be automatically supplied to the uncoiler 2 and labor saving can be achieved.
(5) The positional relationship between the hoop mounting table 14 and the uncoiler 2 that collectively supply the hoops can be easily changed by changing the length of the conveying device 30. This increases the degree of freedom in the layout of the entire line.
(6) Hoop reversal for aligning burr during coil shearing can be performed during traveling.
[Brief description of the drawings]
FIG. 1 is a schematic plan view when a hoop supply device of the present invention is installed in a U-turn type electric sewing pipe making mill.
FIG. 2 is a plan view of the entire apparatus showing the configuration of the hoop supply apparatus of the present invention.
FIG. 3 is a front view of FIG. 2 viewed from the front side.
4 is a side view of FIG. 3 viewed from the left side. FIG.
FIG. 5 is an enlarged plan view showing a device portion of an upper carriage in a hoop take-out conveyance path in relation to a hoop placement base.
6 is a front view of FIG. 5 viewed from the front side. FIG.
7 is a side view of the upper carriage shown in FIG. 6. FIG.
FIG. 8 is a front view of a lower cart installed in a hoop take-out carrying path.
FIG. 9 is a side view of the lower cart.
FIG. 10 is a side view of a transport device installed in the hoop transport path.
FIG. 11 is a front view of the transfer device.
FIG. 12 is a side view showing a hoop mounting trolley mounted on a hoop mounting transport path in relation to a transport device and a mill side uncoiler.
13 is a front view of FIG. 12 as viewed from the front side.
FIG. 14 is an explanatory diagram of a delivery operation in the case where there is no inversion from the hoop mounting table of the upper cart to the lower cart according to the present invention.
FIG. 15 is an explanatory diagram of a delivery operation in the case where there is an inversion from the hoop placing table of the upper cart to the lower cart according to the present invention.
FIG. 16 is a front view showing a conventional hoop supply device.
FIG. 17 is a plan view of FIG. 16 viewed from above.
FIG. 18 is an explanatory diagram when the supply method is changed depending on the burr shape at both ends when supplying the hoop.
[Explanation of symbols]
1 ... Hoop,
2 ... uncoiler,
M ... electric sewing pipe making mill,
D: Hoop removal route,
E ... Hoop conveyance path,
F ... Hoop mounting route,
3 ... Uncoiler expansion / contraction mandrel,
11 ... Upper carriage,
13 ... Expansion / contraction mandrel for hoop removal,
14 ... Hoop stand,
20 ... Lower cart,
23 ... Lifting platform,
24, 25 ... hoop fall prevention side plate,
30 ... Conveying device,
31 ... Trolley,
34 ... Hoop suspension hook,
40 ... Dolly equipped with hoop,
42 ... Dolly hook.

Claims (1)

In the hoop supply device that sequentially takes out the hoops 1 one by one from the hoop yard and supplies them to the uncoiler 2 of the mill M,
A hoop conveyance path E parallel to the hoop 1 mounted on the expansion / contraction mandrel 3 of the uncoiler 2 and a hoop take-out connected at right angles to both ends of the hoop conveyance path E at the facility location of the hoop supply to the uncoiler 2 A hoop mounting carriage 40 is formed in the hoop mounting carriage F, and a hoop take-out expansion / contraction mandrel is formed in the hoop removal carriage D. 13 and a lower carriage 20 that enters the lower portion of the upper carriage 11 and receives the hoop 1 from the upper carriage 11 are movably disposed, and the lower hoop conveyance path E includes the lower carriage 20. A transport device 30 that receives the hoop 1 from the cart 20 and transports the hoop 1 to a delivery position with respect to the hoop-mounted cart 40 is movably disposed
The mandrel 13 for taking out the hoop of the upper carriage 11 can be turned and raised;
The lower carriage 20 has a lift 23 for supporting the hoop 1 and hoop fall prevention side plates 24, 25 arranged on the lift 23 so as to face each other while maintaining a hoop receiving interval;
The transport device 30 has a trolley 31 that travels on the hoop transport path E and a bifurcated hoop suspension hook 34 that is suspended and fixed to the lower side of the trolley 31;
The hoop mounting cart 40 has a cart hook 42 that can be raised and lowered;
A hoop supply device characterized by the above.

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