JPH0218042Y2 - - Google Patents

Description

[Detailed description of the invention] In the case of conventional corn cheese paper tubes, accidents that break the tail threads frequently occur due to traction effects such as controlled stops and rolling during winding of the spun threads. However, the present invention relates to the invention of a corn cheese paper tube with a monitoring function, which is an improved corn cheese paper tube so that doffing operations can be performed under normal conditions with less thread breakage.

Now, regarding the corn cheese paper tube with monitoring,
The shape and structure, as well as the purpose, action, and effect will be explained in detail with reference to the drawings as follows.

First, as shown in FIGS. 1, 2, and 3, the present invention involves spun yarn along the entire periphery 2 of the lower inner side of the corn cheese paper tube 1 and along the entire periphery of the lower side. 5 comes into contact with the bobbin holder (cradle) 4 during doffing, a large number of deformed yarn guide grooves 3 are provided to allow the spun yarn to pass through, and a braking slip is provided during doffing of the spun yarn. This invention relates to a device devised to prevent the tail string from breaking due to actions such as rolling or pulling, and to improve doffing efficiency so that doffing can be easily carried out during normal operations.

As shown in FIG. 4, in the winding operation, the end yarn 8 at the beginning of winding is first guided to the front of the large diameter holder 7, and in this state, the small diameter side of the paper tube 1 is guided to the small diameter holder 7.
While holding it down, place the large diameter side over the large diameter holder 7. As a result, the thread 8 is sandwiched between the paper tube 1 and the large-diameter holder 7. In this case, the thread 8 is inserted into the deformed thread guide groove 3 at the entrance and exit sides of the paper tube 1, respectively. It has become stuck.

According to the paper tube 1 of this example, since the yarn guide groove 3 is formed continuously along the entire circumference, there is no need to consider the alignment of the paper tube 1 with respect to the yarn. Since it can be adapted to the thread guide groove 3 of the present invention, the setting operation is extremely easy.

When the preparation work is completed as described above, the bobbin holder 4 is rotated and the thread is wound. During this work, sudden braking may be applied on the bobbin holder 4 side. As a result, a slip occurs between the large diameter holder 7 and the paper tube 1. In the past, since the thread 8 was tightly sandwiched between the holder 7 and the paper tube 1 without any gaps, thread breakage could occur due to thread friction caused by the above-mentioned slip. According to this example, the yarn guide groove 3 serves as a relief at this time, so yarn breakage is effectively avoided. Therefore, it becomes possible to cope with an increase in the winding speed.

According to the above explanation, the effects of the present invention are as follows.

Since yarn breakage caused by braking, rolling, etc. during spun yarn operation can be effectively avoided, efficient doffing operations are possible.

Since the yarn guide groove is formed continuously over the entire circumference, no special positioning operation is required for the yarn. Therefore, the paper tube can be set up very easily and smoothly.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of the corn cheese paper tube with monitoring of the present invention, Fig. 2 is an enlarged view of the part;
Figure 3 is a bottom view of the paper tube of the present invention, Figure 4 is a live explanatory diagram of the doffing operation carried out with the paper tube of the present invention;
FIG. 5 is a schematic diagram illustrating a completed doffing operation using the paper tube of the present invention. In the figure, 1 is a corn cheese paper tube, 2 is a lower peripheral edge of the corn cheese paper tube, 3 is a deformed thread groove, 4 is a bobbin holder, 5 is a spun yarn, 6 is a small diameter holder, 7 is a large diameter holder, 8 is the end thread at the beginning of winding around the paper tube.

Claims (1)

[Scope of Claim for Utility Model Registration] A corn cheese paper tube whose large diameter side is fitted into a holder of a rotatably driven bobbin holder with the spun yarn at the beginning of winding sandwiched therein, the large diameter side of this paper tube. A continuous deformed yarn guide groove is carved on the inner surface of the opening edge along the entire circumference of the opening edge so as to maintain a predetermined gap between the opening edge and the holder to allow the spun yarn to pass through. A corn cheese paper tube with a monitoring feature.