JP2003063739A - Traverse device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a traverse device for appropriately carrying out a traverse by preventing a traverse guide from being fallen down by inhibiting a moment load to a drive belt body. SOLUTION: A guide surface 9b for preventing a falling down at a strain line traveling direction side of the traverse guide 4 is provided along a direction of a reciprocating motion of the traverse guide 4. The traverse guide 40 comprises a mounting part 410; and a strain line guide part 430 which extends from the mounting part 410 to above downstream of a traveling direction of the strain line, in which a contact part 450 with the strain line Y is positioned at a distal end and which is connected through the mounting part 410 and a connection part 440. The contact part 450 with the strain line Y of the strain line guide part 430 is positioned above downstream of the strain line traveling direction as compared with the mounting part of the drive belt body 2 and the mounting part 410.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traverse device that traverses a yarn by reciprocally moving a traverse guide attached to a drive belt body by driving the drive belt body forward and backward.

[0002]

2. Description of the Related Art As a traverse device, there is known a device that traverses a yarn by reciprocating a traverse guide. As a traverse device of this type, a traverse device is known in which a traverse guide attached to the drive belt body is reciprocated by driving the drive belt body forward and reverse to traverse the yarn.

[0003]

In the case of this type of traverse device, while the yarn is running, the traverse guide, which is the contact portion with the yarn, is rubbed by the friction between the yarn and the contact portion with the traverse guide. A force is applied to the yarn guide portion, the contact portion of the traverse guide is pushed downstream in the yarn traveling direction, and a moment load is generated on the drive belt body. When this moment load is generated, the traverse guide is pushed downward, and a force is applied to the traverse guide in an attempt to cause it to fall to the downstream side in the yarn traveling direction, and an appropriate traverse is performed due to the fall of the traverse guide. There was a problem that I was not denied.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a traverse device capable of appropriately traversing by suppressing a moment load on a drive belt body to prevent the traverse guide from falling down. To do.

[0005]

In order to achieve the above object, the present invention according to claim 1 drives a drive belt body forward and reverse to reciprocate a traverse guide attached to the drive belt body. In a traverse device that traverses the yarn, a regulation guide is provided to prevent the traverse guide from collapsing due to friction accompanying the traveling of the yarn, and the regulation guide is provided on the downstream side of the traverse guide in the yarn traveling direction. The traverse guide is arranged over the entire region and is provided along the reciprocating direction of the traverse guide so that the traverse guide reciprocates while sliding. In the present invention, since the regulation guide for preventing the traverse guide from falling is provided, the traverse guide can be held in an appropriate posture and the yarn can be appropriately traversed.

According to a second aspect of the present invention, in the traverse device for traversing a yarn by reciprocally moving the traverse guide attached to the drive belt body by driving the drive belt body forward and reverse, the traverse guide is provided. The contact portion with the yarn is positioned on the upstream side in the yarn traveling direction with respect to the attachment position of the traverse guide to the drive belt body. In the present invention, the contact portion of the traverse guide with the yarn is positioned on the upstream side in the yarn traveling direction with respect to the attachment position of the traverse guide to the drive belt body, so that the drive belt body and the yarn are arranged. Since a component force that acts to pull the drive belt body in the yarn traveling direction is generated in the linear direction connecting the guide portion, the traverse guide is pushed downward when the yarn is traveling and tends to fall. Power can be reduced. In the present specification, the upper side means the yarn traveling side when viewed from the attachment position of the traverse guide to the drive belt body,
The opposite side will be referred to as the lower side.

According to a third aspect of the present invention, the contact portion has a direction of an angle of 30 degrees from a straight line including the upper and lower end portions of the drive belt body and parallel to the yarn traveling direction toward the downstream side in the yarn traveling direction. It is characterized in that it is located in an area that gradually expands vertically toward. In the present invention, by positioning the yarn guide portion within the above range, it is possible to more effectively reduce the force of the traverse guide being pushed downward by the traveling of the yarn and tending to fall.

According to a fourth aspect of the present invention, a connecting portion is formed which extends toward the downstream side in the yarn traveling direction and connects the attachment portion of the traverse guide to the drive belt body and the yarn guide portion of the traverse guide. It is characterized by that. According to the present invention, the yarn guide portion of the traverse guide can be positioned on the upstream side in the yarn traveling direction with respect to the attachment position of the traverse guide to the drive belt body with a simple configuration.

According to a fifth aspect of the present invention, in a traverse device that traverses a yarn by reciprocally moving a traverse guide attached to the drive belt member by driving the drive belt member forward and backward, Position the contact portion such that the force applied to the contact portion of the yarn guide portion of the traverse guide with the yarn due to friction during traveling has a component force such that the drive belt body is pulled downstream in the yarn traveling direction. It is characterized by having done. In this invention, the force applied to the yarn contact portion of the traverse guide, which is the contact portion with the yarn, due to the traveling of the yarn, is a component force such that the drive belt body is pulled downstream in the yarn traveling direction. And the traverse guide is pushed downward and is distributed to the component force that tries to fall down, and the traverse guide is pushed downward by the amount of the component force generated and tries to fall down. The power to do can be reduced.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings, but the present invention is not limited to the embodiments without departing from the gist of the present invention.

FIG. 1 is a side view of a traverse device 1 according to a first embodiment of the present invention. FIG. 2 is a diagram showing the traverse device 1 shown in FIG. 1 and a control system of the traverse device 1. FIG. 3 is a side view for explaining the generation of force at the traverse guide 40 in the traverse device 1a according to the second embodiment of the present invention. FIG. 4 is an explanatory diagram showing a state of the traverse device 1a when a force is generated on the traverse guide 40 shown in FIG.

As shown in FIG. 2, the traverse apparatus 1 traverses the yarn Y by reciprocating the traverse guide 4 attached to the drive belt body 2 by driving the drive belt body 2 forward and backward. The drive pulley 5 and the driven pulleys 7 and 8 are located at the apexes of the triangle, and the traverse guide 4 reciprocates between the driven pulleys 7 and 8. A drive motor 5 for driving the drive belt body 2 forward and backward,
Motor drive circuit 1 for driving the drive motor 5
6. The motor drive circuit 16 is provided with a control unit 20 that outputs a rotation speed signal and an inversion signal.

FIG. 2 shows an example of a traverse operation state of the traverse device 1, in which the yarn Y supplied from a yarn supplying bobbin (not shown) through a yarn feeding roller is moved by the traverse device 1 in the left-right direction of FIG. The state where the bobbin 10 is wound around the bobbin 10 while being traversed in the axial direction of the bobbin 10. A winding package is formed by winding the yarn Y on the bobbin 10.

The bobbin 10 (winding package) comes into contact with the rotary drum 13 which is rotationally driven by the rotary drum drive motor 12 and is driven to rotate.

Reference numeral 14 is a cradle,
Is for rotatably supporting the bobbin B by sandwiching it with a bobbin holder 14a which is rotatable with respect to the cradle 14.

In FIG. 2, motor control means (control section)
The reference numeral 20 outputs an inversion signal and a rotation speed signal to the motor drive circuit 16 for switching the forward / reverse rotation of the drive motor 5 during traverse.

Here, the drive motor 5 has a stepping motor for switching the direction of the electric current by a step signal to drive the motor, and a commutator and a brush function of the motor with a DC brush. A DC brushless motor in which a Hall element) and a semiconductor (for example, a transistor) are replaced may be used.

The drive belt body 2 is wound around a drive pulley 6 and guide pulleys 7 and 8 for use. As the drive belt body 2, for example, a timing belt that is low in noise and suitable for high-speed rotation is used. However, in addition to the timing belt, wires, strings, metal cables, flat belts, V belts, metal belts are used. , A chain or the like may be used.

The drive belt member 2 is provided between the guide pulleys 7 and 8.
A substantially rectangular linear guide 9 is provided along the inner surface of the. The linear guide 9 is for guiding the traverse guide 4 along the direction of the reciprocating motion of the traverse guide, and as shown in FIG. 1, the traverse guide 4 is sandwiched between the inner side surface and the outer side of the drive belt body 2. It is composed of a guide surface 9a and a guide surface 9b provided on the side surface side. A guide groove 91 is formed in the guide surface 9a along the direction of reciprocal movement of the traverse guide 4 (left and right direction in the plane of FIG. 2).

Here, in the first embodiment, as shown in FIG. 1, the linear guide 9 has other guide surfaces 9a provided on the upstream side (inside the drive belt body 2) in the yarn traveling direction. In addition, a guide surface 9b is also provided on the downstream side of the drive belt body 2 in the yarn traveling direction (outside the drive belt body 2), and the guide surface 9b is also provided along the direction of reciprocal movement of the traverse guide 4. ing. The guide surfaces 9a and 9b are arranged over the entire area of the reciprocating movement of the traverse guide 4 (the traverse width of the yarn Y), and are provided so that the traverse guide reciprocates while sliding.

As shown in FIG. 1, the traverse guide 4 is attached to the drive belt body 2 so as to sandwich the drive belt body 2, and constitutes a "U" -shaped attachment portion. From the attaching portion 41 and the attaching portion 41, the protruding portion 42 protruding toward the guide surface 9a side of the linear guide 9 and engaging with the guide groove 91, protruding from the attaching portion 41, and the yarn Y at the tip. And a yarn guide portion 43 in which a contact portion 45 with is located.

When the yarn Y travels in the traverse device 1 as described above, the yarn Y and the traverse guide 4 as shown in FIG. Due to friction with the contact portion 45 of the traverse guide 4, a force F0 in a direction for guiding the yarn guide portion 43 of the traverse guide 4 to the downstream side in the yarn traveling direction is generated, and the contact portion 45 of the traverse guide 4 is pushed by the force F0. As a result, a moment load is generated on the drive belt body 2. When this load moment is generated, the traverse guide 4 is pushed downward and tries to fall down. This fall can be prevented by the traverse guide 4 sliding on the guide surface 9b of the linear guide 9, and the guide surface 9b is along the direction of the reciprocating motion of the traverse guide 4, and Since it is provided over the entire area of the reciprocating motion, it is possible to prevent the collapse of the traverse reciprocating motion at any point.

Next, the traverse device 1 of the second embodiment
Although a will be described with reference to FIG. 3, the configuration and operation other than the traverse guide 40 and the guide surface 4b will be first described.
Since it is almost the same as that of the embodiment, the same reference numerals are given.

In this embodiment, unlike the linear guide 9 described in the first embodiment, the guide surface 9a inside the drive belt body 2 (upstream side in the yarn running direction).
However, the outer side (downstream side in the yarn traveling direction) 9b does not exist.

As shown in FIG. 3, the traverse guide 40 includes an attaching portion 410, a protruding portion 420, and a yarn guide portion 43.
No. 0, a connecting portion 440, and a contact portion 450 with the yarn Y at the tip, and the attaching portion 410 is attached to the drive belt body 2 so as to sandwich the drive belt body 2. The attachment part is shaped like a square. The protrusion 420 is
It protrudes from the mounting portion 410 toward the linear guide 9 side and is engaged with the guide groove 91. Thread guide part 430
Extends from the attachment portion 410 to the upper side on the downstream side in the traveling direction of the yarn Y, and comes into contact with the yarn Y at the contact portion 450 with the yarn Y at the tip. The connecting portion 440 connects the attaching portion 410 and the yarn guide portion 430, and these are adhered and fixed to each other.

Further, as shown in the figure, the yarn guide portion 4
The contact portion 450 of the yarn 30 with the yarn Y is located on the downstream side in the yarn traveling direction with respect to the attachment portion of the drive belt body 2 and the attachment portion 410 (attachment point of the traverse guide to the drive belt body 2). The contact point A, which is located on the upper side and is in contact with the yarn Y of the yarn guide portion 430, is parallel to the downstream side in the yarn traveling direction including the points B and B1 at both ends in the vertical direction of the drive belt body 2. The straight lines L and L1 are positioned within the range of the area from the straight lines L1 and L1 to the straight lines M1 and M2 that gradually spread upward and downward in the direction of an angle of 30 degrees up and down.

When the yarn Y is run in such a traverse device 1, friction occurs between the yarn Y and the contact portion 450 of the traverse guide 40 at the contact portion A of the yarn guide portion 430 with the yarn Y. As a result, a force F in the downstream direction of the yarn traveling direction is generated as shown in FIG. Assuming a direction N of a straight line connecting the point C and the point A, which is the center of the points B and B1, of the drive belt body 2, the force F in that direction and the direction F orthogonal to the line N It can be considered that the component force with respect to F2 is generated.

Here, the above-mentioned component force F1 is due to the driving belt body 2
Is applied to the downstream side of the yarn Y in the traveling direction, and the component force F2 in the direction orthogonal to the component force F1 on the other hand.
Is for exerting a force that the drive belt body 2 and the traverse guide 40 (attachment portion 410) are pushed downward and tend to fall. As shown, the force F is the component force F1.
Since it has the component of, the driving belt body 2 and the traverse guide 40 (attachment portion 410) are equivalent to the force F1.
Is a force that pushes downward and tries to fall down,
That is, the component of the component force F2 becomes small. Further, by the component force F2, the component (component force) F3 in the yarn traveling direction at the point C of the component F1 due to the generation of the component force F1 before being pushed by the traveling yarn Y and trying to fall down. , While keeping the traverse guide 40 (attachment section 410) in an appropriate posture,
As shown in FIG. 4, the drive belt body 2 is pulled downstream (in the direction of the arrow 3) in the yarn traveling direction, and tension is generated in the drive belt body 2 to appropriately traverse the yarn Y.

Therefore, the guide surface 9b shown in FIG. 1 can be eliminated. That is, the regulation guide for preventing the traverse guide 40 from falling down on the downstream side (winding drum 13) side in the yarn traveling direction to regulate the posture is minimized, and the traverse guide 40 upstream side in the yarn traveling direction. Since it is possible to reliably prevent the drive belt body 2 and the traverse guide 40 from collapsing by only engaging the protruding portion 420 with the guide groove 91 in FIG. 4 shows a state in which the traverse guide 40 is bent in a dogleg shape as illustrated by the application of tension for the sake of description, but in reality, the yarn Y
Since the rigidity of the drive belt body 2 facing the pulling force is higher than the pulling force to the drive belt body 2 due to the frictional force due to the running of the vehicle, the bending as shown in the figure is unlikely to occur.

Further, as shown in the figure, the yarn guide portion 4
The contact portion 450 of the yarn 30 with the yarn Y is on the downstream side in the yarn traveling direction with respect to the attachment portion of the drive belt body 2 and the attachment portion 410 (attachment point of the traverse guide to the drive belt body 2). Of the yarn guide portion 430, which is located on the take-up bobbin 10 side and is in contact with the yarn Y, is downstream in the yarn traveling direction including the points B and B1 at both ends of the drive belt body 2. Since the special effect of the present invention can be obtained when it is located within the range from the straight lines L and L1 parallel to the side to the straight lines M1 and M2 which gradually spread upward and downward in the direction of the angle of 30 degrees up and down. is there. If it exceeds the above range, the component force F
1 becomes smaller, but the component force F2, that is, the force involved in the force of the drive belt body 2 and the traverse guide 40 (attachment portion 410) that is pushed downward and tends to increase. The effect of the invention is reduced.

In the second embodiment, the traverse guide 40 is constructed by bonding the attachment portion 410 and the yarn Y via the connection portion 440, but these attachments are shown. The attachment part 410, the protrusion part 420, the yarn guide part 430, and the connection part 440 may be integrated.

Furthermore, the traverse guide 40 shown in the second embodiment may be applied to a combination of the above-mentioned first and second embodiments and the guide surface 9b shown in the first embodiment provided. . In this case, the action of both the traverse guide 40 and the guide surface 9b causes the traverse guide 4 to move.
It is possible to more effectively prevent the collapse of 0.

[0033]

Since the present invention is constructed as described above,
The following effects are achieved. According to the invention described in claim 1, in the traverse device that traverses the yarn by reciprocally moving the traverse guide attached to the drive belt by driving the drive belt in the forward and reverse directions, the traveling of the yarn. A regulation guide is provided to prevent the traverse guide from collapsing due to the friction caused by the traverse guide. The regulation guide is arranged on the downstream side in the yarn traveling direction of the traverse guide over the entire area of the traverse, and the traverse guide slides. By providing the traverse guide along the reciprocating direction so that the traverse guide reciprocates, the traverse guide can always be held in an appropriate posture and the yarn can be appropriately traversed.

According to the second aspect of the present invention, in the traverse apparatus for traversing the yarn, the traverse guide attached to the drive belt body is reciprocated by driving the drive belt body forward and reverse. By arranging the contact portion of the traverse guide with the yarn on the upstream side in the yarn traveling direction with respect to the attachment position of the traverse guide to the drive belt body, the linear direction connecting the drive belt body and the contact portion In addition, since a component force such that the drive belt body is pulled in the yarn traveling direction is generated, it is generated by the traverse guide being pushed downward when the yarn is traveling,
It is possible to reduce the force with which the traverse guide falls down.

According to the third aspect of the invention, the contact portion is formed at an angle of 30 degrees from the straight line including the upper and lower end portions of the driving belt body and parallel to the yarn traveling direction toward the downstream side in the yarn traveling direction. By locating it in the area that gradually expands vertically in the direction of, the force that tends to collapse the traverse guide, which is generated when the traverse guide is pushed downward during traveling of the yarn, is more effective. Can be reduced.

According to the fourth aspect of the present invention, a connecting portion that extends toward the downstream side in the yarn traveling direction and connects the attachment portion of the traverse guide to the drive belt body and the yarn guide portion of the traverse guide is formed. Since the traverse guide is formed, the traverse guide can have a simple structure.

According to the fifth aspect of the present invention, in the traverse device for traversing the yarn, the traverse guide attached to the drive belt is reciprocated by driving the drive belt in the forward and reverse directions. The contact portion so that the force applied to the contact portion of the yarn guide portion of the traverse guide with the yarn due to the friction accompanying the traveling of the yarn has a component force such that the drive belt body is pulled downstream in the yarn traveling direction. By locating, the force is distributed to the component force that pulls the drive belt in the yarn traveling direction and the force that pushes the traverse guide downwards and tries to fall, and the traverse guide is pushed downwards and falls. It is possible to reduce the force to be pushed in, and it is possible to minimize the number of regulation guide members that prevent the traverse guide from falling and maintain its posture.

[Brief description of drawings]

FIG. 1 is a side view of a traverse device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing the traverse device shown in FIG. 1 and a control system of the traverse device.

FIG. 3 is a side view for explaining generation of force at a traverse guide in the traverse device according to the second exemplary embodiment of the present invention.

FIG. 4 is an explanatory diagram showing a state of the traverse device when a force is generated on the traverse guide shown in FIG.

[Explanation of symbols]

1, 1a Traverse device 2 drive belt body 4, 40 Traverse guide 9 Linear guide 41,410 Mounting part 43,430 Thread guide part 44,440 connection 45,450 Contact part

Claims (5)

[Claims] 1. A traverse device for traversing a yarn by reciprocally moving a traverse guide attached to the drive belt by driving the drive belt in a forward and reverse direction. A regulation guide is provided to prevent the guide from collapsing, and the regulation guide is arranged over the entire area of the traverse on the downstream side of the traverse guide in the yarn traveling direction so that the traverse guide reciprocates while sliding. The traverse device is provided along the reciprocating direction of the traverse guide. 2. A traverse device that traverses a yarn by reciprocally moving a traverse guide attached to the drive belt member by driving the drive belt member forward and reverse, and contacting the traverse guide with the yarn. The traverse device is characterized in that the portion is located on the upstream side in the yarn traveling direction with respect to the attachment position of the traverse guide to the drive belt body. 3. The contact portion is gradually moved up and down in a direction of an angle of 30 degrees toward a downstream side in the yarn traveling direction from a straight line parallel to the yarn traveling direction including upper and lower end portions of a driving belt. The traverse device according to claim 2, wherein the traverse device is located in a widened area. 4. A connecting portion which extends toward the downstream side in the yarn traveling direction and which connects a portion where the traverse guide is attached to the drive belt body and a yarn guide portion of the traverse guide is formed. Traverse equipment. 5. A traverse device that traverses a yarn by reciprocally moving a traverse guide attached to the drive belt by driving the drive belt in a forward and reverse direction. The contact portion is positioned so that the force applied to the contact portion of the yarn guide portion of the guide with the yarn has a component force such that the drive belt body is pulled downstream in the yarn traveling direction. Traverse device.