JPH041490Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a sample yarn setting device for setting the yarn in a fixed position in order to measure the strength characteristics of the sample yarn. This invention relates to a sample thread loading device that can securely clamp and release the thread end by clamping the thread end.

[Prior Art] Generally, the seam spliced by a splicing device is required to have sufficient strength, elongation, good appearance, etc. It is necessary to thoroughly check and inspect the splicing performance of the machine or the yarn splicing device of a winder shipped from an automatic winder manufacturing factory.

In this case, conventionally, the sample yarn, including the yarn joint, was placed in a measuring device and a tensile test was performed to determine the strength and strength.
Elongation, etc. are measured, and the quality of the yarn splicing device is determined from the results.Especially when loading the sample yarn into the measuring device, it is necessary to tie, entangle, or wrap the yarn end around the device. The sample yarn was set so that it was under a constant initial tension.

[Problems to be solved by the invention] However, in the conventional method, excess load may accumulate on the sample yarn itself before measurement, or the characteristics of the yarn itself may change due to untwisting or twisting of the yarn. This made accurate measurement difficult. In addition, it is not only time consuming to set up the thread because the thread ends must be tied or entwined, but it also takes time to remove the cut thread waste after measurement, which requires an extremely large amount of labor and time. Was.

An object of the present invention is to provide a sample yarn loading device that can extremely easily clamp and release the yarn end without applying stress to the sample yarn that is detrimental to the measurement of yarn characteristics.

[Means and effects for solving the problem] In order to achieve the above object, the present invention has a fixed piece and a movable piece arranged above and below to clamp the sample thread, respectively, and clamping parts of the movable piece and the fixed piece. A vertical clamp mechanism consisting of a spring that presses the upper and lower clamps together, a drive means that moves the vertically movable pieces against the spring force to form a gap between each clamp part, and a vertical clamp mechanism that is provided below the lower clamp mechanism and It is equipped with a weight roller that engages with the sample thread to remove slack when threading the sample thread on the clamp mechanism, and the movable pieces of the upper and lower clamp mechanisms are moved and fixed by a driving means. By creating a gap between the clamp section and the piece, loading the sample yarn into the clamp mechanism in that condition, and clamping the yarn after removing slack with a weight roller, it is possible to always load the yarn under constant conditions. .

[Example] An example of the present invention will be described below based on FIGS. 1 to 8.

Here, an example is shown in which the in-process device of the present invention is applied to an automatic inspection device that inspects seams formed by a yarn splicing device of a winding device, but it can also be widely applied to manual inspection devices. It can also be applied to a thread loading mechanism.

Referring to FIG. 8, a schematic configuration showing an inspection apparatus according to the present invention will be explained. The inspection device 1 includes a yarn splicing command mechanism 2 that gives a yarn splicing command to the yarn splicing device T of the winding unit U in ○a, and a yarn splicing command mechanism 2 that gives a splicing command to the yarn splicing device T of the winding unit U; a sample thread collection mechanism 5 consisting of an upper thread cutting/gripping mechanism 3 and a lower thread cutting/gripping mechanism 4; A sample thread transfer mechanism 9 consisting of a lower movable arm 8 and a link mechanism for moving each arm 7, 8;
(d) A mechanism 12 consisting of an upper clamp mechanism 10, a lower clamp mechanism 11, etc., which separates the sample yarn transferred to the inspection position from the transfer mechanism and sets it in a fixed position; It is composed of a measuring device 6 and the like for measuring characteristics.

Each of the above mechanisms ○I to ○H is mounted on a movable trolley 14 suspended via wheels from the ceiling rails 13, 13 extending along the winding unit U, and each mechanism is operated in a timed manner by a drive system. However, operations such as collecting, transporting, setting, and measuring the yarn splicing sample yarn are performed in an orderly manner.

Although not shown in the figure, there are three driving camshafts that operate each of the above mechanisms. Of these, an axis C, which will be described later, operates the mechanism 12 and the measuring device 6 for moving the sample thread to the measuring position.

Next, to explain the loading mechanism of the sample yarn to the measuring device, the sample yarn including the seam portion, which has been transferred to the measuring device by the sample yarn collecting mechanism and the transfer mechanism, is transferred to the loading mechanism shown in Fig. 1. 12, both ends of the sample thread are set and clamped in place.

In FIGS. 1 to 4, the mechanism 12 is an upper clamp mechanism 2 that clamps the upper end of the sample thread.
0 and a lower clamp mechanism 21 that clamps the lower end of the sample thread, and a drive mechanism 22 that drives both mechanisms.

That is, the main body frame 2 of the inspection device 1 shown in FIG.
The above-mentioned upper and lower clamp mechanisms are provided on one side wall 24a side of the box body 24 having a rectangular cross section and fixed to the box body 3. Note that the upper clamp mechanism 20 has a box body 24.
The lower clamp mechanism 2 moves vertically along the
1 is a fixed position, and in this case, by raising the upper clamp mechanism, characteristics such as strength and elongation of the sample yarn can be measured.

The upper and lower clamp mechanisms 20, 21 mainly include fixed pieces 25, 27, movable pieces 26, 28 that clamp the thread between the fixed pieces 25, 27, and a drive lever 29 that operates each of the movable pieces 26, 28. ，
It is composed of 30 mag.

As shown in FIGS. 2 and 3, the fixed piece 25 fixed to the elevating plate 31 has a center hole 32 and a conical recess 33, and the rod 34 passing through the center hole 32 is brought into close contact with the conical recess. A conical convex movable piece 26 is formed.

Washer 35 and lifting plate 3 fixed to rod 34
A compression spring 37 is installed between the rings 36 fixed on the first side, and urges the movable piece 26 to the left.
The end portion of the yarn is clamped between the tapered contact surfaces of the fixed piece 25 and the movable piece 26. Of course, the clamp portion may not have a conical tapered shape but may have a simple flat shape.

Note that since the lower clamp mechanism 21 is fixed in position with respect to the box body 24, the fixed piece 27 having the same shape as described above is directly fixed to the side wall 24a of the box body 24, and the rod 38 having the movable piece 28 is fixed to the above-mentioned fixed position. It penetrates the center hole of the piece and the side wall 24a and protrudes into the inside of the box body 24.

Furthermore, the elevating plate 2 of the upper clamp mechanism 20
1 is formed by folding a plate-like body into a U-shape when viewed from above, and has folded surfaces 39,
Between 39 and 39, a guide pin 40 is placed in two positions, upper and lower (first
40, 40), the guide pin 40,
Reference numeral 40 indicates guide rails 41, 4 formed on the box body 24.
It is designed to move up and down along the gap 43, 43 between the two.

At the lowermost position of the upper movable piece 26, a pressing surface 29 is provided at a position facing the rod 34 of the movable piece 26.
The drive lever 29 with the lower movable piece 28
A similar pressing surface 3 is also provided at a position opposite to the rod 38.
Drive levers 30 having a diameter of 0a are each pivotally supported by the box body 24 44, 45, and each lever 29, 3
Actuation rods 48, 49 connected to 0 46, 47
is moved up and down by a cam mechanism which will be described later, so that each movable piece 26, 28 opens and closes in synchronization to clamp the upper and lower yarn end portions.

FIG. 5 shows a cam mechanism for operating the actuating rods 48, 49. Two cam plates 50 (only one is shown) are fixed to the shaft C, one cam plate 50 is for the upper clamp mechanism, and the other cam plate is for the lower clamp mechanism, and they are substantially the same. The only difference is that one cam surface has a recess 52 for positioning the stop of the camshaft, and the other cam surfaces are the same. Therefore, only one cam 50 will be explained.

The cam plate 50 rotates in the direction of arrow 53.

The cam surface has a large diameter portion 50a followed by a small diameter portion 50.
b is formed over an angle θ1, and a large diameter portion 50c is further formed, and a cam lever 5 with an actuating rod 48 pivoted at the tip 54 is formed on the cam surface.
5. A cam follower 56 provided at the intermediate portion presses against the cam follower 56.
The lever 55 is supported by a fixed shaft 57, and is biased by a spring 58 in a direction in which the cam follower 56 is pressed against the cam surface.

In addition, in FIG. 1, the lower clamp mechanism 21
Further, a weight roller 62 for taking up the slack of the sample thread is rotatably supported on the box body 24.
It is attached on the lever 63 that has been removed. As shown in FIG. 6, the lower edge 63a of the lever 63 comes into contact with the thread waste suction tube 65 to determine the lower position, and when loading the thread, the weight roller 62 is wound around the lower movable arm ( Figure 8 8) moves,
After the upper movable arm 7 reaches the home position, further
When the lower movable arm moves, the weight roller 6
Due to the yarn tension, the thread Y wound around the thread 2 moves the weight roller 62 from the solid line position to the two-dot chain line position 62b in FIG.
The sample thread can be moved to a position where the slack in the thread is removed and the sample thread can be set under a constant initial tension. Note that the weight caused by the weight roller 62 and lever 63 does not cause any change in the properties of the sample yarn, but is merely a weight to take up slack, and it is also possible to replace the roller 62 depending on the yarn thickness. be.

Furthermore, as shown in FIGS. 1 and 7, the broken yarn is moved between the upper and lower yarn end clamping mechanisms 20 and 21 due to the influence of air flow from the unit side, causing the upper and lower movable arms to cut and grip the yarn. A thread tangle prevention plate 66 is formed to have a substantially L-shaped cross section as shown in FIG. 7, and is attached to the box body 24 to prevent the thread from becoming entangled with the mechanism etc. and to ensure that the thread is located near the thread waste suction pipe. ing.
In addition, near the upper part of the lower clamp mechanism 21, there is a substantially V shape for reliably guiding the sample yarn Y transferred by the lower movable arm between the fixed piece 27 and the movable piece 28.
A letter-shaped guide plate 67 is attached to the side wall 24 of the box body 24.
It is attached to a. Note that the guide plate 67 can also be provided at the upper clamp mechanism position, but in this embodiment, a yarn detection feeler, which will be described later, is provided directly below the upper clamp mechanism, and the feeler moves the sample yarn to a fixed position. In order to be guided, the guide plate 67 is provided only on the lower side.

Now, the mechanism effect in the above configuration will be explained.

The sample thread that has been transferred to the vicinity of the measurement position is first positioned at a predetermined position of the upper clamp mechanism, and then the slack of the sample thread is removed by a slight movement of the lower movable arm. The upper and lower clamp mechanisms clamp the vicinity of the yarn end almost simultaneously.

That is, when the upper movable arm 7 in FIG. 8 reaches directly above the upper clamp mechanism 20, the sample yarn Y connected to the gripping point of the lower movable arm is connected to the fixed piece 25 and the movable piece 26 of the upper clamp mechanism 20 in FIG. guided by the gap between In particular, if the clamp portion has a conically tapered shape, it is guided by this tapered surface and is naturally positioned at a specific position. At this time, the lower movable arm 8 in FIG. 8 is in the intermediate position, and after a slight time delay after the upper movable arm stops, it reaches the final raised position near the lower clamp mechanism 21 shown in FIG. Move up to. At this time, the sample thread Y connected to the gripping point of the lower movable arm is attached to the lower clamp mechanism 2 shown in FIG.
1, and when the lower movable arm 8 finally moves, the roller 62 moves from the solid line position 62 to the two-dot chain line position 62b.
The sample thread is moved to an appropriate position in between by a distance sufficient to absorb the slack in the thread, and the slack is removed without overloading the sample thread.

Clamping and unclamping of the thread is performed as follows.

That is, in the state shown in FIG. 5, the cam follower 56 is in the valley 52, so the actuating rod 48 is in the lowered position and the upper movable piece 26 is in the closed position. As the cam plate 50 rotates, the cam follower 56
is driven by the large diameter portion 50a, the operating lever 55 pivots clockwise, the operating rod 48 rises in the direction of arrow 59, and the drive lever 29 at the lower end of the rod 48 shown in FIG. direction, the pressing surface 29a presses the rod 34 on the movable piece 26 side,
The movable piece 26 is opened against the spring force, and the state shown in the third figure is created, that is, a conical gap 60 is created between the fixed piece 25 and the movable piece 26a. In this state, when the sample thread is transferred to a predetermined position, the thread is positioned at a position vertically crossing the gap, and the cam plate 50
Due to the rotation of the cam follower 56, the small diameter portion 50
When the position b is reached, the actuating rod 48 descends in the direction of arrow 61, returns the movable piece 26 to its original position, and clamps the thread. Note that the actuating rod 48 is in the lower position over the angle θ1, and during this time the thread strength test is performed, and the cam follower 56 is at the position 50 of the cam surface.
When reaching c, the elevating plate 31 is in its initial state,
That is, it has returned to the lowest position, and the actuating rod 48 is raised again by the large diameter portion 50c of the cam surface to open the movable piece 26 and release the clamp on the yarn end.

In this way, the clamp mechanism actuating cam 50 shown in FIG.
The illustrated upper and lower movable pieces 26 and 28 close to complete clamping of the thread. Therefore, the rotation of the camshaft C is started immediately before the sample thread is positioned at the measurement position, and when the sample thread comes into contact between the upper and lower movable pieces 26 and the fixed pieces 25 and 28, 27, the movable pieces 26, 2
8 is already in the state shown in FIG. 3, which has been opened by the raising of the actuating rods 48 and 49 shown in FIG. , 28 in the closing direction, the sample yarn Y is set in the measuring device. After the clamping mechanism completes clamping the sample thread, the thread cutting and gripping devices 3 and 4 of the upper and lower movable arms 7 and 8 are reset and returned to their original states in preparation for the next sample thread collection operation.

In this way, according to this embodiment, once the sample yarn is transferred to the loading mechanism 12 by the sample yarn transfer mechanism 9, the sample yarn can be automatically clamped and released by simply rotating the cam shaft C. can. Therefore, there is no possibility that an excess load is accumulated on the sample yarn itself before measurement, or that the characteristics of the yarn itself such as untwisting or twisting of the yarn are changed. In addition, since there is no need to tie or entangle the thread ends, it takes time to set up the thread, and it takes time to remove cut thread waste after measurement, resulting in a lot of effort and time. It doesn't even need to be done.

[Effects of the invention] In summary, the present invention provides the following excellent effects.

(1) Since it is only necessary to bring the yarn end into contact with the gap formed in the clamp section, it is possible to effectively avoid applying loads or twists on the sample yarn that are harmful to the measurement of yarn properties, and to measure the yarn accurately. Measurements can be taken.

(2) The end of the thread is clamped by pressing the end of the fixed piece and the end of the movable piece, and the end of the thread is not tied or entangled as in the conventional method.
By releasing the pressure contact, the clamp on the yarn end can be released extremely easily, improving work efficiency.

(3) When the sample thread is placed in the upper and lower clamp mechanisms, the weight roller removes the slack in the thread, so the sample thread can be set under a constant initial tension.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional front view showing a sample thread loading mechanism provided on the measuring mechanism side, which is an embodiment of the device of the present invention, Fig. 2 is a sectional front view showing the upper and lower clamp mechanisms, and Fig. 3 is FIG. 4 is a plan view showing the configuration of the upper clamp mechanism; FIG. 5 is a side view showing the drive mechanism for the movable piece of the upper and lower clamp mechanism; FIG. 7 is a side view showing a weight roller for taking up yarn slack provided directly below the lower clamp mechanism, FIG. 7 is a sectional view taken along the line -- in FIG. 1, and FIG. 8 is a schematic configuration of an inspection device to which the device of the present invention is applied. FIG. In the figure, 22 is a driving means, 25 and 27 are fixed pieces,
26 and 28 are movable pieces having a conical convex shape at the end;
9 and 30 are drive levers, 32 is a center hole, 33 is a conical recess as an end face of a fixed piece, 34 and 38 are rods, 37 is a compression spring, 48 and 49 are actuation rods, 50 is a cam plate, and 55 is an actuator. Lever, 60
is the gap formed in the clamp part, and Y is the sample thread.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Upper and lower clamping mechanisms arranged above and below to clamp the sample thread, each consisting of a fixed piece, a movable piece, and a spring that presses the clamping parts of the movable piece and the fixed piece together. , a driving means that moves the vertically movable piece against the spring force to form a gap between each clamp part, and a drive means that is provided below the lower clamp mechanism and is used when threading the sample thread on the upper and lower clamp mechanisms. A sample yarn loading device characterized by comprising a weight roller that engages with the sample yarn to remove slack from the yarn. (2) The sample yarn loading device according to claim 1, wherein the surface of the clamp portion formed by the movable piece and the fixed piece has a conically tapered shape. (3) The driving means includes an actuation lever that swings due to the rotation of the cam, an actuation rod that moves forward and backward as the actuation lever swings, and a rod of the movable piece that swings as the actuation rod moves forward and backward. The sample yarn loading device according to claim 1 or 2, characterized in that it comprises a drive lever that is pushed open against the spring force.