JPH0347329B2 - - Google Patents

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention provides a yarn splicing device with an improved structure for collecting a sample yarn including the seam portion of spliced yarn from a winding unit and loading it into a measuring machine. Regarding inspection equipment.

[Prior Art] In general, a winding unit constituting an automatic winder is equipped with a slab catcher that detects yarn unevenness such as thick yarn existing in the yarn being wound and cuts it to remove it. It is equipped with a yarn splicing device for rejoining the ends, and winds only normal yarn onto the winding package. As this yarn splicing device, a knotter that mechanically forms a knot, or a knotter that twists the yarn ends together using an air flow to form a knotless seam is used.

Since the seams spliced by the yarn splicing device described above are required to have sufficient strength, elongation, etc., it is necessary to thoroughly check the performance of the yarn splicing device to prevent insufficient seams from occurring. Therefore, a sample yarn including the joint part of the spliced yarn is automatically collected from the winding unit, the strength and elongation of the joint are measured, and the performance of the splicing device is checked from the measurement results. “Automatic inspection device for yarn splicing devices” (JP-A-Sho
61-146827) has been proposed.
This automatic inspection device is equipped with a measuring device that has a pair of clamps that grip both ends of the sample yarn, including the seam portion of the spliced yarn, on the inspection device main body supported opposite to the winding unit. The structure includes a thread collection mechanism for collecting the sample thread from the collection unit and delivering it to the clamp.

[Problems to be explained by the invention] However, in the case of the above automatic inspection device,
The thread collection mechanism expands and contracts from the inspection device main body toward the take-up unit, and uses two independent link mechanisms to transfer one end of the sample thread to one clamp and the other end of the sample thread to the other clamp. The structure was complicated and the device was large.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art and to provide an inspection device for a yarn splicing device in which the structure of the sample yarn collection mechanism is simple and the device can be made compact.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an inspection apparatus main body that is supported opposite to a winding unit equipped with a yarn splicing device, and a seam portion of spliced yarn. In an inspection device for a yarn splicing device that is equipped with a measuring machine having a pair of upper and lower clamps that grip both ends of a sample yarn containing A pair of upper and lower yarn collecting arms are provided which alternately move toward and away from the winding unit by rotation, and the tip of the upper yarn collecting arm captures the yarn above the seam when it approaches the winding unit. A thread collection lever is provided to transfer the yarn to the upper clamp when the yarn separates, and when it approaches the take-up unit side, it catches the yarn below the seam part, and when the yarn separates, it catches the yarn below the seam. A thread shifting lever is provided to transfer the thread to the lower clamp.

[Function] When the upper yarn collection arm first approaches the take-up unit side due to the reciprocating rotation of the rotation shaft, the yarn collection lever at its tip catches the yarn above the yarn seam, and when it separates, the Transfer the thread to the upper clamp,
When the lower yarn collection arm approaches the take-up unit side, the yarn shifting lever at its tip catches the yarn below the yarn seam, and when it separates, the yarn is transferred to the lower clamp. Therefore, the structure is simplified, unlike the conventional yarn collection mechanism which consists of two independent link mechanisms.

[Example] Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.

In FIG. 1, 1 indicates a plurality of take-up units 2.
This is an automatic winder in which winders are arranged in parallel, and on a rail 3 installed above the automatic winder 1, full packages 4 wound by each winding unit 2 are doffed to form empty bobbins. Doffing truck to be replaced 5
is supported so that it can run freely, and this doffing truck 5
An inspection device 6 is movably supported and connected to and towed by. As shown in FIG. 2, the winding unit 2 constituting the automatic winder 1 includes a guide 8 for guiding the yarn Y from the yarn supply bobbin 7, a tensioner 9 for applying appropriate tension, and a slab catcher 10 for detecting yarn unevenness.
The film is guided upward through the air and wound onto a winding package 4 rotated by a drum 11. Further, when the winding unit 2 detects yarn unevenness, the yarn Y being wound is cut and the winding is stopped, and the first yarn guide suction arm 12 is activated to move the yarn feeding bobbin 7
The side thread end is moved to the second thread guide suction arm 13.
guides the yarn ends on the winding package 4 side to the yarn splicing device 14 provided at a position away from the normal yarn travel path, and after splicing the yarn with this yarn splicing device 14, the yarn is wound. is set to continue. In particular, a button 15 is provided on the front face of the winding unit 2, which is pushed in during the winding operation. When the button 15 is pulled out, the winding stops, and when pushed in again, the splicing operation is performed. When the winding package 4 is fully wound, the green lamp 16 on the front of the winding unit 2 lights up and the button 15 is automatically pushed out to stop the winding operation. When the start button 17 is pressed, the winding operation is restarted.

Then, the doffing truck 5 is connected to the green lamp 16.
While doffing is carried out by stopping on the winding unit 2 with the light on, the inspection device 6 inspects the spliced yarn from the winding unit 2 that is being doffed to two adjacent winding units 2 in the illustrated example. The sample yarn including the seam part is collected and measured. rail 3
A plate 18 for positioning the doffing truck 5 and the inspection device 6 is attached to the winding unit 2, and the doffing truck 5 and the inspection device 6 are equipped with a sensor and a plate (not shown) for detecting the position of the plate 18. A dog (not shown) that engages with the doffing truck 5 and fixes the doffing truck 5 and the like is attached.

The inspection device 6 mainly consists of an upper box 19 that accommodates a device for controlling the electrical system and for displaying and storing measured values, and a lower box 20 constituting the inspection device body that accommodates a mechanical part for thread collection and measurement. , as shown in FIG.
The lower box 20 is removably attached to the upper box 19 by engaging the wheels 22 attached to the upper end of the lower box 20 with the rails 21 attached to the lower end.

The lower box 20 includes an operating rod 23 for operating the button 15, a measuring device 26 having a pair of clamps 24 and 25 for gripping both ends of a sample yarn _YA of a predetermined length L, a clamp 24 of this measuring device 26,
Attached to 25 are a pair of sampling arms 27a and 27b for sampling and delivering the sample yarn _YA from the winding unit 2, and a driving section 29 for these arms. Drive part 2
9 is five cam plates 3 formed into a desired cam shape.
0 and cam levers 31 to 35 driven by these cam plates 30.
is fixed on a camshaft 37 supported through a bearing 36 in the upper part of the lower box 20. Rollers 38 that roll on the cam plate 30 are attached to the cam levers 31 to 35, respectively, and springs 39 that press the respective rollers 38 against the cam plate 30 are connected. A motor 40 is attached to one end of the camshaft 37.
are connected via pulleys 41, 42 and a belt 43, and a rotary plate 45 having a detection piece 44 for detecting the rotation angle of the camshaft 37 is attached to the other end of the camshaft 37, and detects these detection pieces 44. A proximity switch 46 is disposed within each lower box 20.

As shown in FIG. 4, the operating rod 23 has an electromagnet 47 at its tip that attracts a magnetic material (not shown) attached to the front surface of the button 15, and a lower box in a slide groove 48 formed in the axial direction. By slidably fitting a guide rod 49 attached to the winding unit 20, the button 15 of the winding unit 2 is supported from inside the lower box 20 so as to be retractable. An intermediate lever 52 is rotatably attached to a support shaft 51 supported through a bearing 50 above the operating rod 23 in order to operate the operating rod 23, and one end of the intermediate lever 52 is attached to the cam lever for operating the button. 32 is connected via a connecting rod 53, and a groove 5 formed on the side of the operating rod 23.
4 is fitted with the other end of the intermediate lever 52.

On the other hand, the clamps 24 and 25 of the measuring device 26 are arranged one above the other on the side surface of the lower box 20. The upper clamp 24 has a truncated conical clamp piece 24a rotatably supported from the lower box 20 side to face the side surface of the lower box 20 via a bracket (not shown), and this clamp piece 24a. It consists of a movable clamp piece 24b that is removably fitted to a clamp piece 24a to grip the upper end of the sample yarn _YA . This movable clamp piece 24a is fixed to the tip of an operating shaft 56 rotatably and slidably supported in the lower box 20 via a bearing 55, and is fixed to the rear surface of a flange 57 formed on this operating shaft 56 and the rear bearing. The clamp piece 24a is pressed against the other clamp piece 24a by a spring 58 interposed between the clamp piece 55 and the clamp piece 24a. Further, an output lever 5 is pivotally supported near the actuating shaft 56 in order to operate the movable clamp piece 24b away from the clamp piece 24a against spring pressure.
9 is engaged with the front surface of the flange 57,
The other end of this output lever 59 is connected to one end of an intermediate lever 60 for upper clamping, which is pivotally supported on the support shaft 51 as shown in FIG. 5, via an intermediate rod 61.
The other end of the intermediate lever 60 is connected to the upper clamp cam lever 34 via a connecting rod 62.

A rotary shaft 64 of a motor 63 for rotating the movable clamp piece 24 to apply tension to the sample thread _YA is attached to the rear end of the operating shaft 56 in an engaged state in which it is slidable and capable of transmitting rotational force. are connected.

The lower clamp 25 is attached to and detached from the fixed clamp piece 25a in order to grasp the lower end of the sample yarn _YA between the conical fixed clamp piece 25a facing the side surface of the lower box 20 and the fixed clamp piece 25a. It consists of a movable clamp piece 25b that is freely fitted. The movable clamp piece 25b is fixed to the tip of a movable rod 66 that is slidably inserted into the support cylinder 65, and the fixed clamp piece 25a is fixed to the shaft hole 67 formed at the tip of the movable rod 66. It is fixed to the tip of a fixed rod 68 that is slidably inserted. The base end of the fixed rod 68 is fixed to the support tube 65 via a fixing pin 69, and the fixed pin 6 is attached to the side wall of the movable rod 66 so that the movable rod 66 can slide relative to the support tube 65.
A slit 70 passing through the hole 7 is formed.
Further, the movable clamp piece 25b is disposed between the support cylinder 65 and the movable clamp piece 25b, and the fixed clamp piece 2
A spring 71 is interposed to press against 5a. The support cylinder 65 is fixed to the tip of a load cell 72 whose base end is fixed to the lower box 20. As a result, the tension applied to the sample yarn _YA by the rotation of the upper clamp 24 acts on the load cell 72 from the lower clamp 25 via the support cylinder 65, thereby controlling the strength, elongation, etc. of the sample yarn _YA . It is now possible to measure it. In order to move the movable clamp piece 25b of the lower clamp 25 away from the fixed clamp piece 25a against the spring force, a lower clamp output lever 73 is pivotally supported near the movable rod 66, and its first output end 73a is movable rod 6
It engages with a hook part 74 formed at the rear end of 6 and pulls it rearward. Second output end 73b of lower clamp output lever 73
is connected to the lower cutter 75 installed below the lower clamp 25 via an output rod 76, while the input end 73c is connected to one end of the lower clamp intermediate lever 77 which is pivotally supported on the support shaft 51.
They are connected via 8. The other end of the lower clamp intermediate lever 77 is connected to the lower clamp cam lever 31 via a connecting rod 77. A stopper 79 that locks the rear end of the support cylinder 15 is attached to the lower box 20 to prevent the tensile force that pulls the movable rod 66 backward by the output lever 73 from acting on the load cell 72. It's summery.

The lower cutter 75 is used to cut the lower end of the sample yarn _YA , and as shown in FIG.
It consists of a fixed cutter piece 5a fixed to the side surface of the cutter via a support plate 80, and a movable cutter piece 75a rotatably attached to the fixed cutter piece 75a by a shaft 81, and the tip of the output rod 76 is supported. It is connected to one end of a lever 82 pivotally supported by the plate 80, and the other end of the lever 82 is connected via a link 83 to the base end of the movable cutter piece 75b. Lower cutter 75
After the lower clamp 25 grips the lower end of the sample yarn _YA , the sample yarn YA is cut outside of the lower end.

The base ends of the pair of thread collection arms 27a, 27b are rotatably supported in the lower box 20 via a bearing 84, and are connected to a common rotation shaft 85 extending from the side surface of the lower box 20. connected.

The rotation shaft 85 is disposed approximately in the middle between the upper and lower clamps 24 and 25, and in a position that does not interfere with the sample thread _YA stretched between the clamps 24 and 25. The rotating shaft 85 is a hollow shaft, and a thread shifting lever drive shaft 88 that drives thread shifting levers 86 and 87 attached to the tips of the collecting arms 26 and 27 is rotatably supported inside the rotating shaft. There is.

As shown in FIGS. 3 and 6, a mounting flange 89 is formed at the distal end of the rotating shaft 85, and the thread pulling lever drive shaft 88 extends through the mounting flange 89. A fixed bracket 90 is fixed to rotatably support the distal end of the upper thread collection arm 27a, and the base end of the upper thread collecting arm 27a, which is made of a tubular body, is attached to the fixed bracket 90 so as to be perpendicular to the rotation axis 85. There is. A U-shaped movable bracket 91 is rotatably supported at the tip of the thread guide lever drive shaft 88 extending from the mounting flange 89.
This movable bracket 91 has a lower thread collecting arm 2.
The base end portion of 7a is attached so as to be perpendicular to the rotating shaft 85.

A spring 92 is interposed between a fixed bracket 90 and a movable bracket 91 via spring mounting rods 93 and 94, and a movable bracket 71 is disposed on the fixed bracket 89. A stopper 95 is attached for locking the lower yarn collection arm 27 at a position facing the upper yarn collection arm 27a. A stopper 96 is attached to the side surface of the lower box 20 to restrict the rotation of the lower yarn collection arm 27b in the direction opposite to the winding unit 2, and the upper yarn collection arm 27a rotates and extends toward the winding unit 2. The lower thread collecting arm 27b is designed to prevent the lower thread collecting arm 27b from rotating and extending in the opposite direction and becoming a hindrance.

In order to rotate the rotation shaft 85, a pulley 97 is attached to its base end, and as shown in FIG. A belt 99 connected to the cam lever 35 for the yarn collection arm is wrapped around the belt 99, and the other end of the belt 99 is connected to the lower box 20 via a tension spring 100.

The thread collecting arms 27a and 27b are provided with the tip of the thread pulling lever drive shaft 88 and the bevel gear 101,
Shafts 103 and 104 connected via 102 are rotatably inserted through the shafts, and the thread shifting levers 86 and 87 are attached to the tips of the shafts 103 and 104, respectively.

As shown in FIGS. 7 and 8, the thread shifting levers 86 and 87 are both formed in a V-shape so as to hold the sample yarn Y _A from the sides, and the upper thread shifting lever 86 is used to hold the sample yarn Y A at the seam of the sample yarn Y _A. By rotating the upper side of Y _B approximately 90 degrees clockwise, the lower thread guide lever 87
is designed to be held in place by rotating the lower side of the seam _YB approximately 90 degrees counterclockwise. In particular, a cutter 105 is attached to the tip of the upper yarn collection arm 27a for cutting and gripping the upper end of the held sample yarn _YA . This katsuta 1
05 is a fixed cutter piece 1 fixed to the tip of the upper thread collecting arm 27a via the support frame 106.
05a, and a movable cutter piece 105b which is pivotally supported to be openable and closable with respect to the fixed cutter piece 105a, and a spring 107 is connected to the movable cutter piece 105b to bias it in the opening direction, and also to move the movable cutter piece 105b in the thread pulling direction. A lever portion 108 is formed by the base portion 86a of the upper thread shifting lever 86, which rotates to rotate the movable cutter piece 105b in the closing direction against the spring force.

In order to rotate the thread pulling lever drive shaft 88, a pulley 109 is attached to the base end thereof in the same manner as the operating mechanism of the thread collection arm.
09 is wound with a belt 111 whose one end is connected to the thread shifting lever cam lever 33 via an idle pulley 110 attached to the spindle 51,
The other end of the belt 111 is connected to the lower box 20 via a tension spring (not shown).

A suction pipe 112 is provided near the upper and lower clamps 24 and 25 to suck the lint with a suction air flow and discharge it to a lint box (not shown). A feeler 113 is attached to detect when the provided sample yarn _YA is cut.

Next, the operation of the above embodiment will be described.

The inspection device 6 is the winding unit 2 of the automatic winder 1.
When the winding unit 2 is positioned upward, the rotation of the cam plate 30 causes the operating rod 23 to first press the button 1 of the winding unit 2.
Button 1 is activated by an electromagnet 47 extending above 5 and energized.
5 is attracted, the button 15 is pulled out to stop the winding operation of the winding unit 2, and then the button 15 is pushed in to perform the yarn splicing operation. Next, by the rotation of the rotation shaft 85, the upper yarn collection arm 27a moves forward while rotating toward the winding unit 2 side, and as shown in _FIG . The upper side of the sample yarn _YA is held while being pulled up by the rotation of the yarn handling lever 86, and cut with the upper cutter 105, and only the upper end of the sample yarn _YA is gripped. At this time, the lower yarn collection arm 27b is locked by the stopper 96 and does not rotate and extend in the direction opposite to the winding unit 2, so it does not get in the way. The upper thread collecting arm 27a collects the sample thread by rotating the rotating shaft 85 in the opposite direction.
While holding the upper end of _YA , move back and transfer it to the upper clamp 24. The upper clamp 24 is the sample yarn Y _A
When the upper end of the sample thread YA is grasped, the upper cutter 105 releases the sample thread _YA .

Next, the lower yarn collection arm 27b rotates forward as shown by the imaginary line in FIG. 5, and by rotating the yarn gathering lever 87, the yarn collection arm 27b gathers and holds the sample yarn _YA below the seam _YB portion. It is then moved back and delivered to the lower clamp 25. The lower clamp 25 is the sample thread
When the lower end of _YA is gripped, the lower cutter 75 cuts the portion of the sample thread _YA below the gripped portion. In this way, the clamp 24 of the measuring machine 26,
The sample thread Y _A will be set at 25,
In particular, the pair of yarn collection arms 27a and 27b are rotated back and forth on a common rotation shaft 85 to collect the sample yarn _YA from the winding unit 2, and the sample yarn YA is collected from the clamp 2 of the measuring machine 26.
4 and 25, the structure is simplified.

In addition, since the thread collection levers 86 and 87 are attached to the tips of the thread collection arms 27a and 27b to perform thread collection of the sample thread _YA , the sample thread _YA can be reliably collected. Upper cutter 10
5 can be made smaller.

Next, the motor 63 of the measuring device 26 rotates the upper clamp 24 to wind up the upper end of the sample yarn _YA , thereby applying a tensile force to the sample yarn _YA . The tensile force will be applied until the sample yarn _YA breaks.

Then, the tensile force applied to the sample yarn Y _A is
By acting on the load cell 72 from _YA through the support cylinder 65 of the lower clamp 25, the strength, elongation, etc. of the sample yarn _YA including the seam portion can be measured. In order to apply a tensile force to the sample yarn _YA , the upper clamp 24 is rotated and _the sample yarn _YA is wound up. can be made smaller.

When the sample yarn _YA is cut, the feeler 113, which had been pushed by the sample yarn _YA , returns to its original state, and this is detected by the proximity switch 114, and the detection signal is used to control the measuring device 26. Clamp 24,2
5 opens to release the cut sample thread _YA . The released thread waste such as the sample thread _YA is collected by the suction pipe 112.

[Effects of the Invention] According to the present invention, the following excellent effects are exhibited.

Due to the reciprocating rotation of the rotation shaft, when the upper yarn collection arm first approaches the take-up unit side, the yarn collection lever at its tip catches the yarn above the yarn seam, and when it separates, it moves the yarn to the upper part. Deliver to clamp,
When the lower yarn collection arm approaches the take-up unit side, the yarn collection lever at its tip catches the yarn below the yarn seam, and when it separates, it transfers the yarn to the lower clamp. Unlike the conventional thread collection mechanism which consists of two independent link mechanisms, the structure is simpler and the device can be made smaller and lighter.

[Brief explanation of drawings]

Fig. 1 is a front view showing an embodiment of an inspection device for a yarn splicing device according to the present invention, Fig. 2 is a schematic sectional view taken along the line A-A in Fig. 4 is a schematic sectional view taken along the line B-B in FIG. 3, and FIG. 5 is a schematic sectional view taken along the line C-C in FIG. 3.
Fig. 6 is an enlarged perspective view showing the base structure of the thread collecting arm, Fig. 7 is a plan view showing the tip of the upper thread collecting arm, Fig. 8 is a plan view showing the tip of the lower thread collecting arm, and Fig. 9 is a plan view showing the tip of the lower thread collecting arm. The figure is a plan view showing the lower cutter. In the figure, 2 is a winding unit, 14 is a yarn splicing device, 2
0 is the lower box which is the main body of the inspection device, 24, 2
5 is a clamp, 26 is a measuring device, 27a and 27b are thread collection arms, 85 is a rotation shaft, and _YA is a sample thread.

Claims (1)

[Claims] 1. A measuring device having a pair of upper and lower clamps for gripping both ends of the sample yarn, including the seam portion of the spliced yarn, was installed on the main body of the inspection device, which was supported opposite to a winding unit equipped with a yarn splicing device. In an inspection device for a yarn splicing device, a rotating shaft is provided at a position approximately midway between the two clamps, and a pair of upper and lower yarn collecting arms are provided on the rotating shaft, which alternately approach and separate from the winding unit side by reciprocating rotation thereof. A thread collection lever is installed at the tip of the upper yarn collection arm, which catches the yarn above the seam when the arm approaches the take-up unit, and transfers the yarn to the upper clamp when the arm separates. A yarn splicing characterized in that a yarn shifting lever is provided at the tip of the arm, which catches the yarn below the seam portion when the arm approaches the take-up unit side, and transfers the yarn to the lower clamp when the arm separates. Equipment inspection equipment.