JPH0344984B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a method for automatically changing fabric rolls in a loom.

[Conventional technology]

Currently, to replace the fabric roll on a loom, the loom is stopped after a predetermined amount of woven fabric has been wound, and a cutter is used to artificially cut the fabric in the width direction.
A method is adopted in which the finished cloth roll is removed from the loom and transferred to a trolley, while an empty roll is attached to the loom, the end of the cloth is wound around it, and weaving is restarted. However, such a replacement operation takes an unexpectedly long time, and especially in high-speed looms, the production volume is forced to decrease due to the loom being stopped. Therefore,
Attempts have been made to automatically perform such replacement operations using recent robotics technology, but robots that can quickly perform such operations without stopping the loom are still far from being put to practical use. The reality is that this has not been achieved. The present invention was made in view of the current situation, and it is possible to smoothly and automatically replace a full cloth roll with an empty roll while weaving is in progress without stopping the loom. The technical objective is to provide a highly productive method for automatically changing fabric rolls. Furthermore, another technical problem of the present invention is to detect a full cloth roll on a loom and automatically deploy a roll changing cart, allowing the loom to continue weaving without requiring any manual labor. To provide a method for unmanned cloth-wrapped roll replacement that is excellent in labor-saving performance and can perform non-stop operation by unmannedly removing a full cloth-wrapped roll and resetting an empty roll without any need for an operator.

[Means for solving technical problems]

The means adopted by the present inventor to solve the above technical problem are as follows. That is, the present invention is equipped with a trolley roll change arm that is guided and called to a position facing the loom, and this change arm is operated in response to a predetermined change signal to change the roll of cloth that is being woven every moment. The fabric roll that is still being picked up is transferred onto the trolley in that state, and while the fabric roll that has been transferred onto the trolley is used to wind the cloth to be woven on the loom side, the roll exchange arm is used to move the fabric roll onto the trolley. The empty rolls prepared for stacking in advance are sent to the loom T and reset on the loom T from above the fabric being wound up, and then, in the vicinity of the empty rolls that have been reset on the loom T, the The loom is stopped by cutting the cloth connected to the cloth roll in the cloth width direction, wrapping the loom-side cloth end around the outer periphery of the empty roll 8, and winding the other cut cloth end onto the cloth roll on the cart. It is an object of the present invention to provide a method for automatically exchanging fabric rolls without having to do so. In the method of the present invention, it is detected that a predetermined amount of cloth provided on the loom side has been wound onto a fabric roll, the cart is called to a position facing the loom, and a command is issued to activate the roll changing arm, and finally the cloth is cut. If the cart were to sequentially and automatically perform the operations before and after replacing the cloth wrapping rolls, such as issuing a command to return to a predetermined place after winding the ends of the cloth onto the cloth wrapping rolls on the cart, it would be possible to unattended cloth wrapping. Rolls can be replaced.

【Example】

Hereinafter, the method of the present invention will be explained in more detail based on embodiments shown in the accompanying drawings. FIGS. 1 to 10 are diagrams illustrating an outline of a completely unmanned automatic cloth roll exchange system and a manual automatic cloth roll exchange system in the order of steps. Figure 1 shows cloth roll 1 set on a loom.
2 shows a state in which a predetermined amount of cloth W is wound up. This state indicates that the amount of cloth has become full and it is time to replace the cloth roll. In this embodiment, the full state of the cloth roll is detected using a well-known detection device, and in the case of unmanned operation, The trolley 2 is called and guided by wireless or wired signal transmission and placed at a position opposite the loom T. Of course, it is also possible to call it in advance and keep it on standby. In addition, the code|symbol 3 is a press roll, the code|symbol 4 is a cloth wrapping press roll which has the rotation stopper 5, the code|symbol A is a guide roll, and the code|symbol B is a cloth wrapping roll. FIG. 2 shows a state in which the cart 2 is placed at a predetermined position facing the loom. The bogie 2 is equipped with a receiver (not shown) that mutually receives a signal (for example, light) _S1 emitted from the loom T and a signal _S2 emitted from the bogie 2 side to the loom side. 2 can be locked. FIG. 3 shows a state in which the roll exchange arms 6, 6 installed on the cart 2 are extended forward in response to an activation signal and grip both ends of the cloth roll 1. In the case of manual operation, such an activation signal can be given by pressing a button after locking the trolley 2. In the case of an unattended operation, for example, the lock can be made by an AND condition of signals _S1 and _S2 generated by an optical signal generator (not shown), and an activation signal can be generated at the same time. Although not particularly shown, if the cloth roll 1 on the loom side is supported by bearings, the operation of the roll changing arms 6, 6 may be detected, or the cloth roll 1 may be changed in synchronization with the operation. Although it is necessary to release the engagement state with the drive shaft, the fabric roll 1 is placed on the rotating roll.
This is not necessary when the fabric roll is caused to perform a winding operation by being driven by the winding roller. FIG. 4 shows that the cloth roll 1 supported by the roll exchange arms 6, 6 is transferred from the loom side to the cart side, and
A state in which the rolls are placed on the roll placement parts 7, 7 on the trolley 2 is shown. This roll placement section consists of a pair of rotating rolls 7, 7, and the fabric roll 1 placed thereon is driven to rotate and perform a winding operation. Therefore, when the cloth roll is transferred from the loom side to the cart side, the arms 6, 6 move in the direction in which the cloth wound around the cloth roll 1 is released, and the cloth rolls are placed on the roll placement parts 7, 7. 1 is again given winding rotation. Therefore, there is no problem even if the loom T continues to operate and weave cloth, and there is no need to stop the loom. The cloth-wound press roll 4 is stopped by its stopper 5 at a slight interval from the position where the empty roll 8 is mounted, and the cloth from the press roll 3 is guided in the direction of the cloth-wound roll 1. FIG. 5 shows a state in which the roll exchange arms 6, 6 go to pick up the empty roll 8 loaded above the trolley 2 after the cloth roll 1 has been transferred (position α) (position β).
shows. In the illustrated example, forward and backward movements are performed by the forearm 6a of the arm 6, and up and down movements are performed by the rear arm 6b.
It is designed to be done in FIG. 6 shows a state in which the tips of the roll exchange arms 6, 6 are moved upward to grip the empty roll 8 on the upper part of the carriage 2. Roll exchange arm 6,6
moves upwardly passing both sides of the cloth W being wound up on the cloth roll 1 from the state shown in FIG. FIG. 7 shows a state in which the empty roll 8 is sent to the loom and is about to be reset. As mentioned above, when the empty roll is placed on the rotating roll, the empty roll 8 can be placed in a predetermined position using the roll changing arms 6, 6. When the empty rolls are connected to provide cloth winding motion, it is preferable to first support both ends of the empty roll 8 with the roll rests 9 shown in FIG. 7, and to establish communication with the drive shaft. When the resetting of the empty roll 8 to the loom is completed, the cloth W passes from the cloth-wrapped press roll 4 to the cloth-wrapped roll 1 of the cart 2 through the underside of the empty roll 8, and is wound up under constant tension. Become. FIG. 8 shows a state in which the cloth W is cut in the cloth width direction near the empty roll 8 after the empty roll 8 is reset. In the figure, reference numeral 10 denotes a cutter that slides in the cloth width direction, and performs a cutting operation by pushing up from below the cloth W near the empty roll 8 with a support arm 11 extending from the cart 2. In the cutter 10, a guide 12 extending in the cloth width direction so as to sandwich the cutter blade 10a and a nozzle 13 for spraying air or water are placed opposite each other (see FIG. 11). Figure 9 shows the empty roll 8 side cloth end of the cut cloth.
W ₂ is attached to the outer periphery of the empty roll 8 by air or water from the nozzle 13, and winding of the cloth onto the empty roll 8 is started, while the other separated cloth end
W ₁ represents the process of winding the cloth onto the cloth roll 1 on the cart 2 . In this case, the edge of the fabric on the side of the empty roll 8 is preferably attached to the outer periphery of the empty roll 8 at the same time as cutting in the cloth width direction, and the nozzle 13
In addition to jetting air or water, or in place of that, suction is applied from inside the empty roll 8 so that the fabric ends tend to adhere to the outer periphery of the empty roll 8, or water is attached to the outer periphery of the roll, or velvet is used. Style mengi fastener (Product name: Magic Tape)
It is preferable to lay a cloth on the circumferential surface of the empty roll 8 to make it easier for the cloth to adhere. On the other hand, a cloth edge detector 14 is disposed near the cloth-wrapped roll 1 on the cart side, and the cloth-wrapped roll 1 is configured to stop rotating in response to a cloth-edge passing signal. FIG. 10 shows a state in which the cutter 10 is stored on the cart 2 side and the empty roll 8 on the loom side is being wrapped with cloth, that is, a state in which the roll exchange is completed. Therefore, after that, the trolley 2 is moved to the cloth wrapping stocker in response to the roll change signal. The method of the present invention has been described above using embodiments, but the present invention is by no means limited to the embodiments described above, and various design changes can be made within the scope of the claims. For example, in the above embodiment, the roll exchange arms 6, 6 are two-axis, but a single-axis arm that moves back and forth and up and down can perform the same function. Further, the cloth roll 1 on the trolley 2 is rotated on a roll mounting portion consisting of a pair of winding rolls 7, 7 to apply tension when cutting the cloth, and also performs a winding operation after cutting. However, as shown in FIG. 12, the roll 1 is left stationary, and a tension roll 15 is slid along its outer circumference by a belt drive 17 via a timing pulley 16 to apply tension when cutting the cloth. It is also possible to perform a winding operation after cutting. That is, it is easy for those skilled in the art to perform the same operations shown in the embodiments using other means, and to that extent, it is within the technical scope of the present invention.

【Effect of the invention】

As explained above with reference to the embodiments, according to the present invention, the cloth winding roll is moved from the loom to the cart while the cloth winding operation continues, and the empty roll is sent from the cart to the loom to be reset, and then the weaving is continued. After cutting the inner cloth, the end of the cloth on the loom side is automatically wrapped around the outer circumference of the empty roll and winding is started.
In addition, the fabric end on the cart side can be neatly wound onto the fabric roll, and during this time, the fabric roll can be automatically replaced without stopping the loom even for a moment, which is extremely innovative. Furthermore, the method of the present invention includes signal transmission, signal processing,
By skillfully combining these signals, it is also possible to automatically call the trolley, set the position, start and end the exchange work, and guide the trolley to the stocker, so it is possible to change the fabric rolls in a practical sense. It is also possible to make the system unmanned.

[Brief explanation of drawings]

FIGS. 1 to 10 are explanatory diagrams sequentially showing the operational steps of a specific example based on the method of the present invention, and FIG.
FIG. 12 is an enlarged cross-sectional view of the main part of the figure, and is a side view showing a device that applies tension when cutting the cloth and winds the cloth-wound roll 1 after cutting, in place of the roll mounting section. 1... Cloth wrap roll, 2... Cart, 4... Press roll, 6... Roll exchange arm, 7, 7... Roll placement section, 8... Empty roll, 10... Cutter, 13... Nozzle, 14...Fabric edge detector.

Claims (1)

[Scope of Claims] 1. Move the cart 2 having a pair of roll changing arms 6, 6 to a position facing the loom T, operate the changing arms 6, 6, and transfer the fabric roll 1 together with the cloth to the loom T. From the roll mounting portions 7, 7 of the trolley 2
The fabric that is being woven on the loom side is wound onto the cloth roll 1 on the roll placement parts 7, 7, and then the fabric is transferred onto the trolley 2 using the roll exchange arms 6, 6. The empty roll 8 that has been prepared for loading is sent to the loom T and reset on the loom T from above the cloth W that is being wound up. Cut the cloth W continuous to the cloth roll 1 on the roll placement parts 7, 7 from below the empty roll 8 in the width direction, wrap the cloth end W ₂ on the loom side around the empty roll 8, and then cut the other cut piece. A method for automatically changing cloth rolls in a loom, characterized in that a separating end W ₁ is wound onto a cloth roll 1 on a cart 2. 2. By detecting that a predetermined amount of woven cloth has been wound onto the fabric roll 1, the cart 2 on which the empty roll 8 is placed is called to a position facing the loom, the position is set, and the In response to the position setting signal, the roll changing arms 6, 6 installed on the trolley 2 are activated, and the cloth roll 1, which is constantly winding up the cloth being woven, is transferred from the loom T to the trolley 2.
The fabric being woven on the loom side is wound onto the cloth roll 1 on the roll placement parts 7, 7, while the roll exchange arm 6 is then transferred to the roll exchange arm 6. , 6, the empty roll 8 prepared for loading on the trolley 2 is sent to the loom side and reset on the loom T from above the cloth W that is being wound up. Near the empty roll 8, cut the cloth W continuous to the cloth roll 1 on the roll placement parts 7, 7 from below the empty roll 8 in the cloth width direction, and cut the cloth end _W2 on the loom side to the empty roll 8. The other cut-off cloth end _W1 is wound onto the cloth wrapping roll 1 on the cart 2, and the cart 2 is returned to a predetermined standby position based on a roll exchange completion signal. A method for automatically replacing cloth rolls on a loom.