JP2005247457A - Operation method for coil car - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operation method for a coil car capable of shortening an operation cycle time by partly overlappedly performing action of lifting for alignment and advancement traveling of the coil car. <P>SOLUTION: In the operation method for the coil car 3, a coil 1 of a band-like material is installed on a mandrel of a winding/returning reel 7. After the coil 1 is mounted on a saddle 4 of the coil car 3 from a position of a skid 2 placing the coil 1, the coil car 3 is travelled to the winding/returning reel side while raising the saddle 4 to the raised position of the saddle 4 at alignment set in response to a coil outer diameter. After the coil car traveling position arrives at a level adjustment completion position in front of the winding/returning reel, level fine adjustment is performed. After the level adjustment, the coil car is advanced to install the coil 1 on the mandrel 8. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method for operating a coil car in which a coil of a belt-shaped material is conveyed by a coil car and mounted on a rewind reel.

  A coil of a strip-shaped material such as a steel strip is attached to a mandrel (rewinding cylinder) of a rewinding reel when being processed or heat-treated.

  1A is a plan view showing the arrangement of the coil car and the rewinding reel, FIG. 1B is a view taken along the line AA of FIG. 1A, FIG. 1C is a view taken along the line A-B, and FIG. b) is a diagram showing the relationship between the coil center level and the coil car travel position. With reference to FIGS. 1 and 2, a conventional operation procedure for mounting a coil on a rewinding reel will be described below.

  The coil 1 is transported from a coil place by a crane or a forklift, and placed on the skid 2.

  Next, the saddle 4 of the coil car 3 is raised by the height of Δh1 shown in FIG. 2B by the saddle lifting means 5 such as a hydraulic cylinder, and the coil 1 is mounted on the saddle 4. The height Δh1 to be raised is such a height that the coil car 3 can travel on the rail 6 and the lower surface of the coil 1 is not rubbed against the skid 2.

  While the coil 1 is mounted on the saddle 4, the coil car 3 is moved forward to a centering position of the coil 1 where the center of the coil 1 and the axis of the mandrel shaft 8 of the rewinding reel 7 are aligned and stopped. Thereafter, the coil 1 is vertically aligned. The saddle position and the traveling position of the coil car are detected by position detection means 9 such as a pulse generator (PLG).

The coil centering adjustment is disclosed in, for example, Patent Documents 1 and 2.
Japanese Patent Laid-Open No. 1-186217 JP 58-122119 A

  Coil centering adjustment may cause misalignment of the centering due to leakage of the hydraulic circuit of the lift that uses a hydraulic cylinder as the saddle lifting means, or the inner diameter of the coil is equivalent to the hang 1a or protrusion of the end face of the strip. Since the same phenomenon occurs when the coil becomes small, a human inserts a coil after visually confirming the centering state. For this reason, the coil centering adjustment has been performed by stopping the coil car traveling immediately before the mandrel before inserting the coil. That is, in order to mount the coil on the mandrel shaft of the rewinding reel, coil reception (saddle up / down)-advance (coil car travel)-centering (saddle up / down)-coil insertion (coil car travel)-retraction (saddle down)-retraction Each operation (coil car traveling) -standby (saddle lowering) is performed in order. For this reason, there existed a fault that the operation cycle time of coil mounting took time.

  Accordingly, the present invention provides a method of operating a coil car that can shorten the operation cycle time by causing the coil car to partially move up and down for centering and forward traveling. It is in.

  The coil car operation method of the present invention is a coil car operation method in which a strip-shaped coil is mounted on a mandrel of a rewinding reel, and the strip-shaped coil is moved from the position of the skid on which the strip-shaped coil is placed to the saddle of the coil car. After mounting, move the coil car to the rewinding reel side while raising the saddle to the saddle ascending position set according to the outer diameter of the coil, and adjust the level of the coil car running position before the rewinding reel. After reaching the completion position, the level is finely adjusted, and after the level adjustment, the coil car is advanced to attach the coil to the mandrel.

  In the above configuration, the fine level adjustment can be performed using a projector, a light receiver, and a PLG, and the coil car is operated so as to advance the coil car after confirming that it can be mounted by an operator.

  According to the coil car operation method of the present invention, the coil car is started to be centered while the coil is raised while traveling from the position of the skid on which the coil car is mounted on the coil to the rewinding reel side. Time can be shortened.

  Also, by shortening the operation cycle time, the processing time in the line is short, and the coil size can be reduced because it can be applied to a small size coil that must be fitted with many coils in a short time. .

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

  FIG. 2A is a diagram showing the relationship between the coil center level and the position when the coil car travels to the rewinding reel side in the present invention. The operation procedure of the coil car of the present invention will be described with reference to FIGS. 1 and 2 (a).

  In FIG. 1, the saddle 4 of the coil car 3 is allowed to run on the rail 6, and the lower surface of the coil 1 is raised to a height (Δh 1) that does not rub against the skid 2. The coil 1 placed thereon is lifted and mounted on the saddle.

  Next, the coil car 3 starts traveling toward the rewinding reel 7 side and at the same time starts raising the saddle 4 so that the center of the coil is aligned with the core of the mandrel shaft 8 of the rewinding reel 7.

  When the coil car 3 reaches the centering completion position, the height is increased by Δh2, and the level is finely adjusted. Note that the level fine adjustment may be lowered. After the level fine adjustment is completed, the coil car 3 travels further to the mandrel side in order to insert the coil 1 into the mandrel 6.

  In FIG. 2, as is apparent from the change in the coil center level between the present invention shown in FIG. 2A and the conventional method shown in FIG. 2B, the present invention is performed in the coil car running stop state immediately in the vicinity of the mandrel. The operation cycle time can be shortened by separating fine adjustment / confirmation before coil insertion, which is necessary, and level adjustment (coarse level adjustment), which is not necessarily performed in the travel stop state.

  3A and 3B are explanatory views showing the cycle time of the coil car in terms of the running time of the coil car and the operation time of raising and lowering the coil car saddle by the length of the belt. FIG. 3A is the present invention, and FIG.

  In FIG. 3A, when the cycle starts, the coil is raised from the skid by a saddle to a specified height (A in the figure).

  Next, the coil car starts traveling toward the rewinding reel side, and at the same time, the coil car saddle starts to rise so that the center of the coil is aligned with the mandrel axis of the rewinding reel, and the level is roughly adjusted (C-1 in the figure). ). After reaching the centering completion position, the coil car is stopped and the level is finely adjusted (C-2 in the figure). The coil car saddle ascending position at the time of level adjustment is calculated by calculating the saddle position of the coil car where the coil center corresponding to the coil outer diameter and the coil center corresponding to the rewinding reel axis coincide with each other, or the coil outer diameter and saddle in the control device. Obtained by having a correspondence table with the position.

  After adjusting the level, the projector and the light receiver are used, and after confirming that the operator can insert the coil, the coil car is run to insert the coil into the mandrel (D in the figure).

  After the insertion of the coil into the mandrel is completed, the saddle is lowered to the standby position (E in the figure), and the coil car is retracted to the standby position (F in the figure).

  As is apparent from FIG. 3, one cycle time from the start of the cycle to the end of the cycle is shortened by a time T in the present invention compared to the conventional method shown in FIG. By shortening the cycle according to the present invention, it is possible to reduce the coil size applicable to the line at low cost without adding new mechanical equipment to the existing equipment.

(A) is a plan view around the coil car, (b) is an AA arrow view of (a), and (c) is an BB arrow view of (a). (A) is a figure which shows the relationship between the coil center level and coil car travel position in this invention, (b) is a figure which shows the relationship between the conventional coil center level and coil car travel position. FIG. 2 is an explanatory diagram showing the cycle time of the coil car and the operation time of the coil car saddle raising / lowering by the length of the belt, where (a) is the present invention, and (b) is a conventional method.

Explanation of symbols

1: Coil 1a: Hanging 2: Skid 3: Coil car 4: Saddle 5: Saddle lifting means 6: Rail 7: Rewinding reel 8: Mandrel shaft 9: Position detecting means (PLG)

Claims (3)

  In the operation method of the coil car in which the coil of the strip material is mounted on the mandrel of the rewinding reel, the coil of the strip material is mounted on the saddle of the coil car from the position of the skid on which the coil of the strip material is mounted, and then the coil outer diameter is adjusted. While moving the coil car to the rewinding reel while raising the saddle to the saddle ascending position set at the corresponding centering position, the level slightly decreases after the coil car running position reaches the level adjustment completion position before the rewinding reel. A coil car operation method in which adjustment is performed and the coil car is advanced after level adjustment and the coil is attached to the mandrel.   The coil car operating method according to claim 1, wherein the level fine adjustment is performed using a projector and a light receiver.   The coil car operating method according to claim 1, wherein the level fine adjustment is performed using a light projector and a light receiver, and the coil car is advanced after confirming that the operator can attach the level car.

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