JP2008254866A - Web roll loading method and its device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To load and support a web roll in a short time, in a web roll mounting method for loading and supporting the web roll at both-side supporting horizontal attitudes over a pair of right and left supporting members. <P>SOLUTION: This web roll is mounted and supported on a pallet. The pallet supporting the web roll is transferred on a conveyor and the pallet is mounted and transferred toward a prescribed position. Whether or not a right and left direction attitude of the carried-in pallet is proper is discriminated. The pallet discriminated as no prescribed attitude is corrected to the prescribed attitude. The pallet at the prescribed attitude is raised, the web roll is located between the right and left supporting members, the right and left supporting members are connected to a core shaft of the web roll, and the pallet is lowered in relation to the connected and supported web roll. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a raw roll loading method and apparatus used when loading and supporting various sheets or films of wide and heavy sheets in various horizontal processing postures on various processing apparatuses using the sheets.

  As a means of loading and supporting a wide and heavy original roll in a horizontal both-sided manner, the original roll is temporarily placed and supported on a pallet in a horizontal posture, and this pallet is manually transferred onto a conveyor, The pallet is placed and transferred to a predetermined position for the support. When the pallet is transported to a predetermined position, the pallet is raised and sent between the support members arranged on the left and right with respect to the transport direction, and the pair of left and right support members are moved forward and connected to the core shaft of the original fabric roll. There is a means to lower the pallet.

Moreover, according to the conventional apparatus described in Patent Document 1, the position of the original roll on the transport cart in the standby position is detected, and if necessary, the position is corrected by lifting the original roll at that location. Yes. After the correction, the center axis of the original roll and the center position of the rotation support chuck are matched, and then the original roll is conveyed to the feeding position.
Japanese Unexamined Patent Publication No. 2000-7198

  In the above means, in the state in which the pallet supporting the original fabric roll is transferred onto the conveyor, the pallet loaded in a predetermined position is lifted and supplied between the left and right support members. The axis of the core shaft may be displaced from the axis of the left and right support members. When such misalignment occurs, the pallet is lowered once and the posture of the pallet is corrected manually, and then the pallet is lifted again and the alignment is performed again. Therefore, there is a problem that it takes time to load the original roll.

  The present invention has been made paying attention to such a situation, and a main object of the present invention is to provide a raw roll loading method and apparatus capable of loading the raw roll in a short time.

1st invention is the original roll loading method of loading and supporting the original fabric roll which wound the sheet | seat or the film on the core axis | shaft in a both-ends horizontal posture over a pair of support member arranged concentrically and opposingly. There,
An original roll supply step of horizontally placing and supporting the original roll on a pallet;
A pallet transfer process for transferring a pallet on which a raw roll is supported, onto a transfer means;
A pallet carrying-in step for placing and transferring the pallet on the transfer means toward a predetermined position below the support member;
A posture determination step of determining whether or not the horizontal posture with respect to the traveling direction of the pallet transferred to a predetermined position is a predetermined posture;
A pallet posture correction process for automatically correcting a pallet determined not to be in a predetermined posture to a predetermined posture automatically;
A pallet lifting step of raising the pallet in a predetermined posture and positioning the raw roll between the pair of support members;
A connecting step of moving both the supporting members forward and connecting to the core shaft of the original fabric roll;
A pallet lowering step of lowering the pallet with respect to the raw roll connected and supported across the both support members;
It is characterized by including.

  (Operation / Effect) According to this method, first, the original fabric roll is horizontally mounted on the pallet. Next, the pallet on which the fabric roll is supported is transferred onto the transfer means, and the pallet is transported toward a predetermined position for the roll loading support located at the front, and the left and right direction with respect to the pallet moving direction at the transport destination It is determined whether or not the posture is appropriate. When it is determined that the pallet is in an appropriate predetermined posture, the pallet is raised by a predetermined amount, and the original roll is supplied concentrically between the left and right support members. The left and right support members are moved forward to connect the support members to both ends of the core shaft. Thereafter, the pallet is lowered and retracted with respect to the original fabric roll horizontally supported across the left and right support members. This completes the loading support for the original roll.

  If it is determined that the pallet is tilted out of the proper predetermined posture in the posture determination step, the pallet is subjected to a forced posture correction action to be corrected to the predetermined posture (posture correction step), and thereafter It leads to a pallet lift process, a connection support process, and a pallet lowering process.

  Therefore, it is not necessary for the operator to set again, and the process from the raw roll supply process to the final pallet lowering process can be performed in a short time.

According to a second invention, in the first invention,
In the pallet posture correcting step, the pallet is corrected to a predetermined posture by pressing a pallet that is not in a predetermined posture with a side guide member from a lateral direction with respect to the traveling direction.

  (Operation and Effect) According to this method, a pallet that is not in a predetermined posture is corrected to a predetermined posture by being pressed and clamped from the left and right by the side guide members. Therefore, even the pallet that supports the heavy-weight original fabric roll can surely correct the posture.

  Further, since the pallet is pressed and clamped from the left and right, the pallet can be positioned in the left-right direction, so that the pallet supply posture to the transfer means can be roughly determined, which is effective in improving workability.

According to a third invention, in the second invention,
In the pallet posture correcting step, the side guide member is operated by floating the pallet from the transfer means.

  (Operation / Effect) According to this method, the pallet that is pressed and clamped from the left and right by the side guide member and corrected in a predetermined posture moves in a state of being lifted from the transfer means, and the transfer means is a heavy pallet. It is avoided that it is rubbed and damaged.

A fourth aspect of the present invention is an original roll loading device for loading and supporting an original roll having a sheet or a film wound around a core shaft in a horizontal posture while holding both ends across a pair of support members concentrically arranged opposite to each other. There,
A transfer table on which a pallet for horizontally mounting and supporting the original roll is mounted so as to be able to roll, and a pallet transferred from the transfer table is mounted at a predetermined position below the support member. A transfer means for placing and transporting toward,
Pallet attitude detection means for determining whether or not the lateral attitude relative to the traveling direction of the loaded pallet is a predetermined attitude;
A pallet posture correction mechanism that forcibly corrects a pallet that is not in a predetermined posture from the left and right with side guide members to force it to a predetermined posture;
Pallet lifting means for lifting and lowering the pallet;
Advancing and retracting drive means for advancing and retracting both the supporting members in the axial direction;
It is provided with.

  (Operation / Effect) According to this configuration, the first invention can be suitably implemented.

A fifth invention is the fourth invention, wherein:
A pallet raising / lowering stage for placing and moving up and down the pallet is provided in the transfer area of the transfer means.

  (Operation / Effect) According to this configuration, the transfer means is rubbed by the pallet and damaged by operating the side guide member in a state where the pallet lifting stage is slightly raised and the pallet is floated on the transfer means. Posture correction can be performed without any problems. Also, by raising the pallet raising / lowering stage greatly, the raw fabric roll supported on the pallet can be supplied and set between the left and right support members, and the pallet raising / lowering stage can be fed between the pallet posture correcting process and the original between the support members. It can be effectively used in the anti-roll supply process.

  According to the present invention, a heavy and difficult-to-handle raw roll can be loaded and supported between left and right support members in a predetermined horizontal posture in a short time.

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

  FIG. 1 shows a raw roll 1 used in the method of the present invention and a raw roll loading apparatus. This raw fabric roll 1 is obtained by winding a wide film or sheet 2 around a cylindrical core shaft 3 longer than the sheet width. As shown in FIG. 9, the raw fabric roll 1 has support members 6 and 7 concentrically arranged on left and right support frames 5 provided in a sheet supply unit 4 of a processing apparatus that uses a sheet 2. The original roll 1 is loaded and supported in a both-end horizontal orientation across the support members 6 and 7.

  As shown in FIG. 2, in the loading process to the support members 6, 7, the raw roll 1 is mounted on the pallet 8 and handled. The pallet 8 is formed in the shape of a hollow horizontally long rectangular frame, and the protruding portions of both ends of the core shaft 3 are placed on the bearing portions 9 with rollers erected on the left and right surfaces of the pallet 8 so as to horizontally support the raw roll 1. It has become.

  As shown in FIG. 3 and FIG. 4, a conveyor 10 that places the pallet 8 and conveys it in the front-rear direction is arranged below the original roll roll loading position in the sheet supply unit 4, and in front of the conveyor 10. Is provided with a transfer table 11 for loading the raw roll 1 onto the pallet 8 or for collecting and carrying out the used core shaft 3 from the pallet 8. The conveyor 10 corresponds to the transfer means of the present invention.

  The transfer table 11 is configured by arranging a large number of idle balls 12 vertically and horizontally on the upper surface thereof, and the mounted pallet 8 can be rolled and moved in an arbitrary direction by hand. .

  The conveyor 10 is composed of a pair of left and right conveying chains 13 that are vertically wound in the front-rear direction and driven forward and backward, and the conveying surface thereof is set at the same level as the rolling conveying surface of the transfer table 11. A flat pallet raising / lowering stage 14 is provided in the conveyance area of the conveyor 10. The pallet raising / lowering stage 14 is screwed up and down by a servo motor (not shown), and is usually in a standby position that is recessed from the conveying surface of the conveyor 10, and is raised from the conveying surface as necessary. The pallet lifting / lowering stage 14 and its driving mechanism correspond to the pallet lifting / lowering means of the present invention.

  A stopper 15 with a rubber cushion for receiving the front end side of the pallet 8 that has been carried into a predetermined position directly below the support members 6 and 7 is disposed at the back of the conveyor 10, and the horizontal posture of the pallet 8 is supported. A pallet posture detection mechanism 16 for detecting whether or not the posture is parallel to the axis p of the members 6 and 7 is provided. The pallet attitude detection mechanism 16 uses a pair of left and right limit switches 17, and both the limit switches 17 are pressed together at the front edge of the pallet 8 to determine that the pallet 8 is in a predetermined attitude. Yes.

  A pallet posture correcting mechanism 18 that forcibly corrects the posture of the pallet 8 is provided on both sides of the pallet conveyance path in the conveyor 10. The pallet posture correcting mechanism 18 is configured by arranging a vertical plate-shaped side guide member 19 arranged linearly in the front-rear direction so that it can be translated in the left-right direction by a motor-driven screw feed mechanism or the like. ing. In addition, the resin material 20 excellent in abrasion resistance and slipperiness | attachment is attached to the surface which each side guide member 19 opposes. The pallet posture detection mechanism 16 corresponds to a pallet posture detection means of the present invention, and the side guide member 19 and its drive mechanism correspond to a pallet posture correction mechanism.

  Next, a procedure for loading and supporting the original fabric roll 1 across the support members 6 and 7 in the above-described configuration apparatus will be described with reference to FIGS. 5 to 10 and the process diagrams of FIG.

  First, on the transfer table 11, as shown in FIG. 2, the original fabric roll 1 is horizontally placed and supported on the pallet 8 (step S1).

  Next, the pallet 8 on which the fabric roll 1 is supported is manually moved and pushed onto the conveyor 10 driven in the pull-in direction (forward) (step S2).

  When the pallet 8 gets on the conveyor 10 to some extent, as shown in FIG. 4, the pallet 8 is drawn forward and transferred (step S3).

  The pallet 8 is received by the stopper 15, and one of the limit switches 17 senses the arrival of the pallet 8 (step S4), and when the set time has elapsed, the conveyor 10 is stopped (step S5).

  In the pallet attitude detection mechanism 16, as shown by the virtuality in FIG. 3, if the left and right limit switches 17 are pressed at the front edge of the pallet 8 and both are turned on, it is determined that the pallet 8 is in an appropriate predetermined attitude. To do. Further, as shown in FIG. 10a, when only one of the switches 17 is turned on, it is determined that the pallet 8 is tilted out of the predetermined posture (step S6).

  When both the left and right limit switches 17 are turned on and it is determined that the pallet 8 is in an appropriate predetermined posture, the pallet lifting stage 14 is lifted by a predetermined lift amount h as shown in FIGS. The core shaft 3 of the raw roll 1 is supplied concentrically between the left and right support members 6 and 7 that are waiting to retreat. The lift amount h at this time is automatically calculated and set by inputting the diameter of the core shaft 3 to the control device (step S14).

  Next, the left support member 6 is moved forward in the axial direction by a drive mechanism such as a servo motor or an air cylinder corresponding to the forward / backward drive means, inserted into the left end of the core shaft 3, and then provided at the front end side. The diameter of the rubber chuck claw 6a is increased and is fixed by crimping to the inner periphery of the core shaft 3, thereby completing the connection between the one support member 6 and the core shaft 3 (step S15).

  Next, the right support member 7 is moved forward in the axial direction, inserted into the right end of the core shaft 3, and is fitted and fixed concentrically through the tapered cone portion 7a (step S16). As a result, as shown in FIG. 8, the original roll 1 is horizontally loaded and supported across the left and right support members 6 and 7.

  When the loading of the material roll 1 is completed, as shown in FIG. 9, the pallet lifting stage 14 is lowered to the original standby position, and the empty pallet 8 is placed on the conveyor 10 (step S17).

  As shown in FIG. 10a, when only one of the left and right limit switches 17 is turned on and it is determined that the pallet 8 is tilted out of an appropriate predetermined posture, as shown in FIG. 14 rises by a small amount, and the pallet 8 is lifted from the conveying surface of the conveyor 10 (step S7).

  Next, as shown in FIGS. 4 and 10b, the side guide members 19 of the pallet posture correcting mechanism 18 provided on both the left and right sides of the conveyance path are advanced to press the left and right edges of the pallet 8 from the left and right. By pressing and holding the pallet 8, the pallet 8 is corrected to a predetermined posture within the inclination (step S8).

  When the posture of the pallet 8 is corrected, after the side guide member 19 is moved backward (step S9), the pallet raising / lowering stage 14 is returned to the original standby position and lowered, and the pallet 8 is placed on the conveyor 10 ( Step S10). Next, the conveyor 10 resumes the forward pulling and conveying operation (step S11), and when both the left and right limit switches 17 are turned on (step S12), the conveyance is stopped (step S13). Thereafter, the process proceeds to steps S14 to S17.

  When the sheet 2 of the raw roll 1 is consumed, the empty pallet 8 placed immediately below the support members 6 and 7 is lifted by a predetermined amount h, and both ends of the core shaft 3 are received by the bearing portion 9. Thereafter, the support members 6 and 7 are moved backward to release the connection with the core shaft 3. Thereafter, the pallet 8 is lowered and placed on the conveyor 10, and the conveyor 10 is reversely operated to return the pallet 8 to the transfer table 11.

  Next, both comparison results when the raw roll 1 is loaded into the apparatus when the operation of the side guide member 19 is validated and invalidated using the above-described embodiment apparatus are shown below. In this comparison, the measurement conditions are as follows.

  The outer dimensions of the pallet 8 are 1500 × 650 mm, the length of the core shaft is 1450 mm, and the diameter is 6 inches. As shown in FIGS. The distance a between the shaft center P1 of the core shaft 3 and the shaft center P2 of the core shaft 3 and the distance b between the shaft center P1 of the support member 7 on the right in the drawing and the shaft center P2 of the core shaft 3 are each loaded four times. It was measured.

  Here, in the examples, the side guide members 9 were pressed from both ends of the pallet 8 to correct the posture of the raw roll 1, and then the pallet 8 was raised and both distances a and b were measured. On the other hand, in the comparative example, the function of the side guide member 19 was invalidated, and the distances a and b were measured by performing a loading operation under substantially the same conditions as in the conventional apparatus. The results are shown in Table 1.

  The average time in Table 1 means that the loading operation is performed four times, and the pallet 8 descends after the original roll 1 is loaded onto the support member 8 from loading the original roll 1 onto the pallet 8 each time. It is the average of 4 times of the time required.

  As is apparent from Table 1, in any embodiment, there is no deviation of the axis P2 of the core shaft 3 from the axis P1 of the support members 6 and 7 in any loading operation. Therefore, the loading operation is completed without correcting the position of the original roll 1, and is completed in the minimum required time of 152 seconds.

  On the other hand, in the comparative example, the pallet 8 is raised in a state where the posture of the raw fabric roll 1 is not corrected by the side guide member 19. Therefore, as shown in Table 1, the shaft misalignment is confirmed in all of the four loadings. Specifically, as shown in FIG. 12 (a) during the first and second loading, a shift occurs on the left side in the drawing, and during the third and subsequent loadings, as shown in FIG. 12 (b). There is misalignment on the middle right. Therefore, the pallet 8 is once lowered, the posture of the raw fabric roll 1 is corrected manually, and then reloaded into the support members 6 and 7. Therefore, it takes 245 seconds to complete the loading operation. That is, the working apparatus of this embodiment can shorten the working time by about 40% compared to the conventional apparatus.

[Other Examples]
The present invention can also be implemented in the following forms.

  (1) In the above embodiment, the side guide member 19 constituting the pallet posture correcting mechanism 18 is formed in a vertical plate shape, and the left and right side edges of the pallet 8 are pressed and held by surface contact. The member 19 may be provided with a pair of front and rear guide protrusions and guide rollers, and may be implemented by pressing the left and right side edges of the pallet 8 in a two-point front and rear contact state.

  (2) The pallet attitude detection mechanism 16 can detect the horizontal attitude of the pallet 8 in a non-contact manner by using a transmissive or reflective optical sensor, a CCD camera, or the like.

  (3) As the pallet posture correction mechanism 18, the pallet 8 can be forcibly moved forward on the side away from the stopper 15 and pressed against the left and right stoppers 15 to perform posture correction. In this case, means for arranging a pair of left and right pushers that lock the rear end side of the pallet 8 and press it forward and the left and right conveyors 10 can be independently driven to reach the stopper 15. It is also possible to correct the posture of the tilted pallet 8 by pulling and driving only the conveyor 10 on the side that is not.

  (4) A turntable which can be swiveled forward and backward and which can be lifted is arranged between the left and right conveyors 10, and the pallet 8 which is out of posture is placed on the turntable and floated on the conveyor to turn. Then, the posture can be corrected, and then the turntable can be lowered, the pallet 8 can be placed on the conveyor 10 again, drawn and conveyed, and positioning can be performed by the stopper 15.

It is a perspective view of an original fabric roll and a pallet. It is a perspective view of the original fabric roll supported on the pallet. It is a top view which shows the sheet supply part of the processing apparatus which uses a sheet | seat. It is a side view of a sheet supply unit. It is a front view which shows the drawing-in conveyance state of a pallet. It is a front view which shows the attitude | position correction | amendment treatment state of a pallet. It is a front view which shows the state which lifted and supplied the original fabric roll. It is a front view which shows a core shaft connection state. It is a front view which shows the state which loaded and supported the original fabric roll. It is a top view which shows the attitude | position correction | amendment operation | movement of a pallet. It is process drawing which shows the loading process of an original fabric roll. It is a figure which shows the comparison operation | movement of original fabric roll loading.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Original fabric roll 2 ... Sheet | seat 3 ... Core shaft 6 ... Support member 7 ... Support member 8 ... Pallet 10 ... Conveyor 11 ... Transfer stage 14 ... Pallet raising / lowering stage 16 ... Pallet attitude | position detection mechanism 18 ... Pallet attitude correction mechanism 19 ... Side guide member

Claims (5)

A raw roll loading method in which a raw roll having a sheet or a film wound around a core shaft is loaded and supported in a horizontal orientation across a pair of support members arranged opposite to each other in a concentric manner,
An original roll supply step of horizontally placing and supporting the original roll on a pallet;
A pallet transfer process for transferring a pallet on which a raw roll is supported, onto a transfer means;
A pallet carrying-in step for placing and transferring the pallet on the transfer means toward a predetermined position below the support member;
A posture determination step of determining whether or not the horizontal posture with respect to the traveling direction of the pallet transferred to a predetermined position is a predetermined posture;
A pallet posture correction process for automatically correcting a pallet determined not to be in a predetermined posture to a predetermined posture automatically;
A pallet lifting step of raising the pallet in a predetermined posture and positioning the raw roll between the pair of support members;
A connecting step of moving both the supporting members forward and connecting to the core shaft of the original fabric roll;
A pallet lowering step of lowering the pallet with respect to the raw roll connected and supported across the both support members;
An original fabric roll loading method comprising: In the raw fabric roll loading method according to claim 1,
In the pallet posture correcting step, the pallet is corrected to a predetermined posture by pressing a pallet that is not in a predetermined posture with a side guide member from a lateral direction with respect to the traveling direction. In the raw roll loading method according to claim 2,
In the pallet posture correcting step, the pallet is lifted from the transfer means and the side guide member is operated. A roll roll loading device for loading and supporting a roll roll in which a sheet or a film is wound around a core shaft in a horizontally supported state across a pair of support members arranged concentrically and facing each other,
A transfer table on which a pallet for horizontally mounting and supporting the original roll is mounted so as to be able to roll, and a pallet transferred from the transfer table is mounted at a predetermined position below the support member. A transfer means for placing and transporting toward,
Pallet attitude detection means for determining whether or not the lateral attitude relative to the traveling direction of the loaded pallet is a predetermined attitude;
A pallet posture correction mechanism that forcibly corrects a pallet that is not in a predetermined posture from the left and right with side guide members to force it to a predetermined posture;
Pallet lifting means for lifting and lowering the pallet;
Advancing and retracting drive means for advancing and retracting both the supporting members in the axial direction;
An original roll loading device characterized by comprising: In the original fabric roll loading device according to claim 4,
A pallet raising / lowering stage for placing and moving up and down a pallet is provided in a transfer area of the transfer means.

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