JP2852554B2 - Tension adjustment mechanism in creel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] The present invention relates to a tension adjusting mechanism for a creel that easily adjusts the tension of a yarn when winding it from a cheese or a cone onto a drum machine or the like.

2. Description of the Related Art Conventionally, as a creel tension adjusting mechanism used for winding a number of cheese or cone yarns on a drum machine or the like, a required number of weights are stacked on a substrate, and the yarns are attached to the substrate by the weight of the weights. A tension plate is provided between the substrate and a tension plate, and an adjusting plate having a guide post projecting upward from the substrate is rotatably provided, and the rotation angle of the adjusting plate with respect to the substrate is changed. It can be seen that the tension is changed by changing the path, but in the case of the former, the number of weights must be changed and adjusted one by one, which is extremely troublesome. For example, in the latter case, it is necessary to enlarge the thread path and increase the tension adjustment width. However, it has a disadvantage that it becomes complicated and large.

SUMMARY OF THE INVENTION The present invention provides a tension adjusting mechanism for a creel that facilitates adjustment of tension, widens the adjustment range, supports various yarns, and simplifies the mechanism. Things.

[Configuration of the invention]

Means for Solving the Problems According to the present invention, in view of the workability of adjusting the tension of a yarn wound on a drum machine or the like based on the above-described conventional technology and the problems of increasing the size of the adjusting mechanism, the cheese or cone yarn is aligned. The object of the present invention is to provide a tension adjusting mechanism in a creel which is designed to control the rotation of the yarn guide at a predetermined angle, change the yarn path, and change the tension.

And, as the tension adjusting mechanism, in a creel having a number of bobbin support rods for supporting cheese or cone, and having a number of thread guides for horizontally aligning the threads of cheese or cone mounted on the bobbin support rod, A number of yarn introduction holes for guiding cheese or cone yarns are provided in the diameter direction at equal axial positions of the cylindrical yarn guide, and the yarn guide is rotatable. The drive motor is controlled by a controller connected to a sensor unit capable of detecting the tension of the cheese or cone yarn, and the yarn guide is controlled to rotate at a predetermined angle.

In the present invention, the drive motor is rotated in a predetermined direction by a predetermined angle (may be 360 degrees or more),
The degree of bending of the yarn path is changed by the yarn guide, and thereby the resistance applied to the yarn is changed to adjust the tension to a predetermined value.

An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a creel according to the present invention. The creel 1 has a pair of vertical frames 2, 2a. The horizontal frame 3, which connects the vertical frames 2, 2a,.
Are arranged on the floor surface, and a large number of bobbin posts 5, 5a... Are erected at predetermined intervals in the longitudinal direction in the frame main body 4, and the bobbin posts 5, 5a. The bobbin support rods 6, 6a... Are horizontally outwardly arranged at predetermined intervals in the vertical direction (the short direction of the frame body 4).
It protrudes toward.

Are yarn guide frames having a U-shaped cross section. The yarn guide frames 7, 7a are arranged on the side of the frame body 4 and opposed to the bobbin support rods 6, 6a. A pair of through holes 9, 9a are formed in opposing side walls 8, 8a corresponding to the bobbin support rods 6, 6a,... First yarn guide tubes 11 and 11a made of resin, metal or the like are fitted respectively.

Reference numerals 12 and 12a denote yarn guide portions for aligning a large number of cheese or cone W yarns Wa in a horizontal parallel state (horizontal line) which is a state of supply to a drum machine (not shown). 12 and 12a suspend guide guides 14 and 14a on support arms 13 and 13a provided horizontally horizontally from above the front part of the frame main body 4, and are configured to be freely movable laterally along the support arms 13 and 13a.
A large number of thread guides 15, 15a... Are horizontally arranged vertically on the guide posts 14, 14a corresponding to each stage of the cheese or the cone W.

As shown in FIGS. 5 and 6, the yarn guides 15, 15a... Are arranged at equal axial positions of a cylindrical base 16 made of ceramic, synthetic resin, metal or the like having a small frictional resistance. Are formed in the diametrical direction of the base body 16, respectively.

Further, a pair of second yarn guide tubes 19, 19a,... Made of ceramic, synthetic resin, or metal having low frictional resistance and having yarn introduction holes 18 are fitted in the through holes 17, 17a,.

Also, the bases of the thread guides 15, 15a are penetrated through the guide posts 14, 14a, and are rotatably mounted via bearings 20, 20a, and a pulley 21 is fixed to the base end of the base 16. .

A drive motor 22 is provided above the guide posts 14 and 14a, and an endless belt 24 is wound around a pulley 23 fixed to the rotation shaft of the drive motor 22 and the plurality of pulleys 21. The rotation controls the rotation of the thread guides 15, 15a at a predetermined angle.

Reference numeral 25 denotes a sensor unit for detecting the tension of the yarn Wa of the cheese or the cone W provided in the yarn introduction frames 7, 7a... A first support arm 28 extending rightward from above and a second support arm 29 extending leftward from below and rising upward from the elevating rod 27 are provided. The fixed support frame 30 is fixed, and a potentiometer (not shown) for detecting the amount of elevation of the elevating rod 27 is provided.

31 is a first guide post, and the first guide post 31
Is located at the lower side of the yarn passage between the first yarn introduction tubes 11 and 11a.
As shown in the figure, the first support arm 28 of the support frame 30 is projected in a lateral direction by a predetermined amount so as to intersect with the yarn passage of the first support arm 28 in a plan view.
It is arranged at the tip of.

Reference numeral 32 denotes a second guide post.
Are the first yarn guide tubes 11 and 11a similarly to the first guide post 31.
As viewed in plan, the lower side of the yarn passage between the first guide post 31 and the second support arm 29 of the support frame 30 appropriately protruded laterally from the first guide post 31 so as to intersect with the yarn passage. It is arranged.

Reference numeral 33 denotes an auxiliary post fixed to the back wall 26 of the yarn introduction frame 7, 7a,..., And projects a predetermined amount in the horizontal direction above the yarn passage so as to intersect with the yarn passage in a plan view. .

The holding post 33 is located between the first guide post 31 and the second guide post 32 in a plan view, and
When it rises, it does not interfere with the first and second guide posts 31 and 32.

The sensor section 25 is not limited to the above-described configuration, but may be an appropriate sensor (not shown) capable of detecting a tension generated by the rotational displacement of the thread guides 15, 15a. The disposition position may not be provided on the creel 1 but may be provided on a drum machine (not shown) which is a partial warping machine.

In the drawing, 34, 34a are guides disposed at appropriate positions before and after the yarn guides 15, 15a ... in the yarn path of the yarn Wa of the cheese or cone W.

Next, the operation of the tension adjusting mechanism in the creel according to the present invention will be described. First, the guide posts 14, 14a are moved laterally along the support arms 13, 13a, and the bobbin support rods of the bobbin posts 5, 5a. 6,
A large number of cheeses or cones W are mounted on 6a..., And the yarn Wa of the cheese or cone W is attached to the first yarn introduction tube of the yarn introduction frames 7, 7a.
11 and 11a, the yarn guides 15 and 15a are connected to the drum machine via the second yarn introduction pipes 19 and 19a and the guides 34 and 34a and then the lifting rod 27 is raised according to the type of the yarn wa. That is, the first guide post 31 and the second guide post 32 of the sensor section 25 are raised until they are higher than the auxiliary post 33, and the initial tension is applied.

At the time of adjusting the tension of the yarn Wa, the yarn guide is rotated by rotating the drive motor 22 in a predetermined direction at a predetermined angle (360 degrees or more) as shown in FIGS. 6 (a) to 6 (d). The degree of bending of the yarn path of the yarn Wa between the guides 34, 34a passing through the second yarn introduction tubes 19, 19a, ... of the 15, 15a ... is changed, thereby changing the resistance applied to the yarn Wa to a predetermined tension. It is adjusted to.

In this state, when the tension of the thread Wa changes, the elevating rod 27 descends, and the descending amount is input to a control device (not shown) via a potentiometer, and is arbitrarily set in the control device. The rotation angle of the drive motor 22 is controlled so that the set value is obtained.

In addition, when the tension is applied and adjusted in the initial stage, the tension is set using the sensor unit 25 of the present embodiment, but it is possible without using the sensor unit 25. In this case, the thread guides 15, 15a,. Is rotated by a predetermined angle to give an initial tension corresponding to the type of the yarn Wa, and thereafter the tension is adjusted by further changing the rotation angle of the yarn guides 15, 15a.

〔The invention's effect〕

In short, the present invention provides a large number of yarn introduction holes 18 for guiding the yarn Wa of the cheese or the cone W in the diametric direction at equal axial positions of the cylindrical yarn guides 15, 15a.
Are rotatable, a drive motor 22 is connected to the yarn guides 15, 15a, and the drive device is connected to a sensor unit 25 capable of detecting the tension of the cheese or cone yarn. Are controlled to rotate the yarn guides 15, 15a... By a predetermined angle. By driving the drive motor 22 to rotate the yarn guides 15, 15a. The yarn path can be bent to change the degree of bending, etc., and thereby the resistance applied to the yarn Wa can be changed to adjust the tension to a predetermined value. The tension adjustment mechanism can be adjusted easily even during winding.
The mechanism is simple because it is a mechanism for rotating the 15, 15a ... and the rotation width of the thread guides 15, 15a ... can be 360 degrees or more, so the adjustment width can be extremely large. Thus, the practical effect is extremely large, for example, it can cope with various yarns Wa.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a partially omitted side view of a creel according to the present invention.
FIG. 3 is a partially omitted front view of the same, FIG. 3 is a partially omitted plan view of the same, FIG. 4 is a partially omitted side view of the same thread guide portion, FIG. 5 is an enlarged view of the same thread guide, and FIG. a) to (d) are operation diagrams of the thread guide showing a tension adjustment state, FIG. 7 is a partially enlarged view of a sensor unit, and FIG. 8 is a sectional view of the same. 1 creel, 6, 6a ... bobbin support rod 15, 15a ... thread guide, 18 thread guide hole 22 drive motor, 25 sensor unit

Claims (2)

(57) [Claims] 1. A creel having a plurality of bobbin support rods for supporting cheese or cone and having a plurality of yarn guides for horizontally aligning the yarns of cheese or cone mounted on the bobbin support rod, comprising: A plurality of yarn introduction holes for guiding cheese or cone yarns are provided in the diametric direction at equal axial positions of the yarn guides, and the yarn guides are rotatable, and a drive motor is connected to the yarn guides. A tension adjusting mechanism for a creel, characterized in that: 2. A creel according to claim 1, wherein said drive motor is controlled by a control device connected to a sensor unit capable of detecting the tension of the cheese or cone yarn, and the yarn guide is rotated by a predetermined angle. Tension adjustment mechanism.