JPH0733331A - Package conveying system - Google Patents

Abstract

PURPOSE:To provide a package conveying system capable of doffing a package from a spindle requiring doffing as appropriate. CONSTITUTION:A full package 4 is doffed from each spindle 2 to a conveyor 6 arranged along a line of spindles 2 of a winder 1 as appropriate in a package conveying system, and the conveyor 6 is driven to deliver the full package 4. The full package 4 is doffed at the vacant position of the conveyor 6 while the conveyor 6 is driven.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for transporting a doffed package from a winder, and more particularly to a package transport system capable of doffing a required doffing weight at any time.

[0002]

2. Description of the Related Art A winder is a device for winding a yarn produced by a spinning machine and wound on a bobbin into a package. The winder 31 shown in FIG. 3 includes a large number of weights including the winding unit 2 in order to produce a large number of packages based on a large number of bobbins. Usually, the winding unit 2 has a bobbin mounted on the lower portion thereof and a package mounted on the upper portion thereof, and winds the bobbin from the package until the winding amount reaches a certain length. The full package is doffed by the doffing device 35 and is transported by the transport conveyor 36.

The doffing device 35 and the conveyor 36 will be described. Since the weights of the winder 31 are arranged in rows, the winder 31 has a shape elongated in one direction. Assuming that one side of the winder 31 and the side on which the bobbin and the package are mounted are the tables of the winder 31, the doffing device 35 can reciprocate on the track laid along the front side of this row, If there is a doffing weight, stop at that position.
The doffing operation includes an operation of removing the package 4 of the weight and an operation of sending the package 4 to the back side of the weight. The transport conveyor 36 is laid along the back side of the row of weights. Package 4 sent out by the above doffing operation
Are tumbled on the conveyor 36. The transport conveyor 36 is operated toward the transport means for the next process in order to send the package 4 to the device in the next process of the winder 31.

The transport means for the next process is, for example, the ceiling transport device 37. The ceiling transfer device 37 is a transfer means for causing a large number of package grippers to travel on a transfer path installed above other devices. A take-in station 38 of the ceiling transfer device 37 is provided in contact with one end of the transfer conveyor 36. The package 4 transported by the transport conveyor 36 is
Ceiling transfer device 3 sequentially through the intake station 38
Is paid out to 7.

By the way, since the conveyer conveyor 36 runs along the back side of the row of weights, the packages 4 doffed by each weight pass through the back of the weights downstream thereof until they reach the take-in station 38. Therefore, if the doffing operation is performed blindly by the weight on the downstream side, the packages 4 may collide with each other. In order to avoid this, in the past, a simultaneous payout was made. In the simultaneous dispensing, with the transport conveyor 36 stopped, doffing is performed at each weight at any time, and when all the spindles have finished doffing and the transport conveyor 36 is full, the transport conveyor 36 is operated to dispense. Is the way to do it. Since the transport conveyor 36 is stopped, the package 4 that has come out from another weight does not exist on the back side of the weight that is being doffed. The weight after the doffing can be continued to be wound, but when the next package 4 becomes full by the end of the simultaneous payout, the weight is in a waiting state.

In addition, as shown in FIG.
There is one in which a doffing buffer 21 is provided on each weight. For example, the buffer 21 is configured such that a shutter 22 is provided so as to be retractable in the middle of an inclined path that causes the package 4 to fall from the front to the back of the weight. By equipping the shutter 22, the space between the winding unit 2 and the transfer conveyor 36 can be effectively used as the buffer 21, and the package 4 can be temporarily held. Even if the package 4 waiting to be dispensed exists at the position of the weight on the conveyor 36, the doffing operation may be performed if the buffer 21 is empty. As a result, the winding can be continuously started without waiting for the end of the simultaneous dispensing. Even in this case, if the buffer 21 is in use, the weight will wait for the buffer to be empty.

[0007]

As described above, in a winder that does not include a buffer, there is a weight that is in a waiting state until the simultaneous dispensing is completed, so the operating efficiency of the weight is reduced. On the other hand, in a winder equipped with a buffer,
Although it is possible to prevent the efficiency of the weight from decreasing, the structure of the winding unit becomes complicated. Of course, the price of the winding unit also becomes expensive. In addition, if a winder having no buffer is already installed, the operating efficiency of the weight cannot be improved.

Therefore, an object of the present invention is to solve the above-mentioned problems and to provide a package transfer system capable of performing doffing from a doffing required weight at any time.

[0009]

Means for Solving the Problems In order to achieve the above object, the present invention is to unload a package full of balls from each weight at any time onto a conveyor that is arranged along a row of weights of a winder, and to convey the conveyor. In a system for driving and delivering a full-ball package, the doffing is performed at a vacant position of the carrying conveyor while driving the carrying conveyor. Specifically, the transport conveyor can be stopped at each pitch of the weights, doffing is not performed when the transport conveyor is operating, and the transport conveyor is not operating when doffing. Then, the empty portion of the conveyor is determined near the doffing weight and the doffing is performed on the empty portion.

[0010]

With the above structure, the doffing is performed on the carrying conveyor while the carrying conveyor is driven to perform the payout. Since the doffing is performed at the empty position of the conveyor, the collision of the packages can be avoided.

By making it possible to stop the transport conveyor at each pitch of the weight and stopping the transport conveyor before doffing, even if the transport conveyor is driven, the packages on the transport conveyor always face the weight at the stop position. The empty part between the packages also faces the weight. Therefore,
If doffing is performed when the empty part of the conveyor reaches the doffing required weight, the packages will not collide. As a result, doffing can be performed at any time from the doffing required weight, a buffer is not required, and the waiting time is shortened.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

In this embodiment, the package transfer system of the present invention is applied to a winder having no buffer. In the winder 1 shown in FIG. 1, the winding unit 2 is provided with n weights, and the winding units 2 are numbered as 2 ₁ , 2 ₂ , ... Each weight is controlled by a constant length device so that a fixed length of yarn can be wound around the package 4. The doffing cart 5 travels back and forth along the front side of the winder 1, recognizes the current position in association with the weight number, and stops in front of any weight to doffing. The doffing dolly 5 recognizes a full ball signal output from each weight or a full ball indicator operated by each weight, and recognizes that the weight is a doffing necessary weight. In addition, the number of the doffed weight can be stored. Further, the doffing dolly 5 is provided with a reflection type optical sensor 10, and it is possible to confirm by this sensor 10 whether or not the package 4 is present on the conveyor 6 at the weight position where the dolly 5 is stopped.

The conveyer conveyor 6 is composed of an endless belt laid along the back side of the row of weights, and is driven from the side with the largest weight number to the side with the smallest weight number. The downstream end of the transfer conveyor 6 is connected to the intake station 8 of the ceiling transfer device 7. The drive amount of the conveyor 6 is detected for each length of one spindle. Based on this detection, the conveyor can be stopped at each pitch P of the weight. That is, the conveyor 6 is driven intermittently for each pitch of the weights. In addition, by counting this detection, it is possible to recognize the transport distance, that is, how far down the spindle the package, which was located at the previous weight position, is transported.

In the package transport system, by storing the number of the doffed weight and recognizing the transport distance from that point, it is possible to determine which weight position the package is currently at and which weight position the package is. It is also possible to recognize whether or not there is a package over the entire length of the conveyor 6. Therefore, the optical sensor 10 is abolished, and the trolley 5 is
It is also possible to know whether or not the package 4 is present on the conveyor 6 at the position where the weight has stopped.

Two winders 1 are shown in FIG.
Each intake station 8 is connected by a ceiling transfer device 7. Actually, a large number of equivalent winders are provided upstream and downstream of the ceiling transfer device 7 to configure the entire system.

When the conveyor 6 is driven, a signal for prohibiting the doffing operation of the doffing dolly 5 is output. On the contrary, when the doffing dolly 5 is performing the doffing operation (when outputting the doffing operation in-progress signal), the signal for prohibiting the driving of the conveyor 6 is output. Further, when there is a package in the take-in station 8, this is detected by a sensor (not shown), and the driving of the conveyor 6 is prohibited until the take-in station 8 dispenses the package.

Next, the operation of the embodiment will be described.

When each weight of the winder 1 is being wound, the doffing carriage 5 constantly travels back and forth to monitor whether or not the passing weight is the doffing necessary weight. On the other hand, the transport conveyor 6 is stopped or driven. When you find the necessary doffing weight (2n), doffing cart 5
Stops at the position 2n and checks whether or not the package 4 is present on the conveyor 6 corresponding to the position 2n. When it is determined that the package 4 does not exist at the position corresponding to the trolley stop position 2n on the transport conveyor 6, the doffing trolley 5
Doffing is permitted.

When the doffing operation is permitted, the doffing trolley 5 prohibits the driving of the conveyor 6 and then performs the doffing operation and stores the weight number 2n. Since the winder 1 has no buffer, the doffed package is directly sent to the conveyor 6. After the doffing operation,
The doffing dolly 5 releases the drive prohibition of the transport conveyor 6 and starts traveling by itself. The weight starts to wind a new package.

The transport conveyor 6 may start driving after waiting for a predetermined time in a stopped state, but here it is assumed to start driving immediately. When the transport conveyor 6 is driven, the doffed package 4i is transported downstream. After that, the transport distance of the package 4i is always recognized. The package 4i arrives at the take-in station 8 and is delivered to the ceiling transfer device 7. And the weight number 2n corresponding to this package 4
Will be erased.

When the doffing trolley 5 finds the next required doffing weight 2m, the doffing trolley 5 stops at that position 2m and repeatedly stops driving at each pitch. The fried car 5 is
Check whether or not the package 4 is present on the conveyor 6 at the stop m. When there is no package, a doffing operation in-progress signal and a conveyor conveyer drive prohibition signal are issued.
In response to this request, the conveyor 6 stops according to the pitch of the weight and prohibits driving. On the other hand, when the package is present, the intermittent drive of the conveyor 6 is repeated until the package is absent. Therefore, even if the doffing is performed, there is no possibility that the package 4 will collide.

After that, the same operation is repeated every time a full ball is produced by any of the weights. As a result, the packages 4 which are doffed one by one are conveyed on the transfer conveyor 6 in an intermittently lined state, and the packages 4 are inserted into the empty space of the transfer conveyor 6 at each doffing operation. When there is the package 4 coming from the upstream weight on the transport conveyor 6, the weight is stopped while waiting for doffing, but the waiting time is shorter than in the case of simultaneous dispensing.

In this embodiment, the doffing trolley 5 traveling along the winder 1 is used, but instead of the doffing trolley 5, each doff may be equipped with a doffing device.

[0025]

The present invention exhibits the following excellent effects.

(1) Doffing Since doffing can be done from the required weight at any time, the waiting time can be shortened.

(2) Since a buffer is not required, the winder can be made inexpensive and can be applied to an existing winder having no buffer.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a winder showing an embodiment of the present invention.

FIG. 2 is a schematic plan view of a winder showing a conventional example.

FIG. 3 is a schematic plan view of a winder showing a conventional example.

[Explanation of symbols]

 2 winding unit 4 package 5 doffing dolly 6 conveyor

Claims (1)

[Claims] 1. A package, which is full from each weight, is fried at any time on a conveyor along a row of weights of a winder,
What is claimed is: 1. A package transfer system for driving a transfer conveyor to dispense a full package, wherein a doffing is performed at an empty position of the transfer conveyor while driving the transfer conveyor.