JPH1059625A - Bobbin carrying tray stopping device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent damage of a tray and a tray stopping device, and attain simplification and size reduction of the device by arranging an air jet nozzle to blow air in the direction for checking travel of the tray, and stopping the tray by blowing air against the tray. SOLUTION: An air blowout nozzle 7 is arranged to blow air toward an upper position of a round belt 6 so as to act against the advancing direction of a tray (t), and is installed on a support frame erected on an upper guide plate 1a or the like. Here, the tray (t) is deflected from a rectilinearly advancing passage 4, and since the round belt 6 contact with it in a position eccentric from a central part of a large diameter part t1 of the tray (t), the tray (t) rotates. When the tray (t) rotates, propulsion of the tray (t) by the round belt 6 reduces. In this stage, air is blown out at prescribed speed from the air blowout nozzle 7 so as to act against the advancing direction of the tray (t). Therefore, the tray (t) stops to travel while continuing rotation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bobbin on which an empty bobbin or a thread is wound (hereinafter, simply referred to as "bobbin").
The present invention relates to a bobbin transport tray stop device for stopping a tray for placing and transferring a sheet along a traveling path.

[0002]

2. Description of the Related Art Conventionally, in order to place a bobbin on a tray or to clean a tray, a means for temporarily stopping a tray being transported along the traveling path is provided with a lever-shaped or 2. Description of the Related Art There is known a bobbin transport tray stopping device that stops a traveling tray by projecting a roller-shaped stopper or the like and bringing the tray into contact with the stopper.

[0003]

The above-mentioned conventional bobbin transport tray stopping device requires a complicated mechanism for performing the operation of projecting the stopper to the traveling path and the operation of retracting the stopper from the traveling path. However, there is a problem that the bobbin transport tray stop device becomes expensive and the frequency of maintenance increases.

In the above-described conventional bobbin transport tray stopping device, the tray is stopped by bringing the stopper into contact with the running tray, so that the tray and the stopper may be damaged. There is a problem.

An object of the present invention is to solve the problems of the above-described conventional bobbin transport tray stopping device.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention is provided with an air ejection nozzle for blowing air in a direction in which a tray traveling along a traveling path is prevented from traveling. Further, means for moving the tray with respect to the transport belt so that the transport belt is brought into contact with a position eccentric from the center of gravity of the tray and the propulsive force of the tray is converted into a rotational force of the tray is provided. The guide member for guiding the tray has a shape that suppresses the advance of the tray at the position where the air is blown from the air ejection nozzle.

[0007]

FIG. 1 is a plan view of a bobbin conveying tray stopping device of the present invention including a flow block diagram of a tray.
An embodiment of the present invention will be described with reference to FIG. 2 which is a vertical sectional view taken along the line II of FIG. 1 and FIG. 3 which is a vertical sectional view taken along the line II-II of FIG. 1 excluding the tray. However, the present invention is not limited to this embodiment at all without departing from the spirit of the present invention.

T is a tray comprising a disk-shaped large diameter portion t1, a disk-shaped small diameter portion t2 connected to the upper surface of the large diameter portion t1, and a peg t3 erected on the upper surface of the small diameter portion t2; The bobbin is placed on the tray t by inserting a hole formed in a bobbin (not shown) into the peg t3.

Reference numerals 1a and 1b denote a pair of horizontal upper guide plates disposed so as to face each other so as to guide the small diameter portion t2 of the tray t. The traveling path g of the tray t is controlled by the upper guide plates 1a and 1b. Is formed. FIG. 1 shows an example in which the tray t travels upward from below along a travel path g.

[0010] As shown in FIG.
Is composed of a straight path 2, a bent path (deflection path) 3 following the straight path 2 and bent in a substantially inverted shape, and a straight path 4 following the bent path 3. The bending path 3 is
An introduction part 3a whose direction has been changed with respect to the straight path 2, a straight part 3b parallel to the straight paths 2, 4 following the introduction part 3a,
Following the straight section 3b, the straight section 3b is connected to the straight path 4. Further, between the rectilinear portion 3b and the lead-out portion 3c, a stagnant portion 3d serving as a stop position of the tray t described later is formed.

The upper guide plate 1b located on the right side in FIG. 1 forms a traveling path g composed of the straight paths 2 and 4 and the bent path 3 formed between the straight paths 2 and 4 as described above. Is formed with a substantially mountain-shaped concave portion 1b ', and an upper guide plate 1a located on the left side in FIG.
Has a substantially convex portion 1a 'corresponding to the substantially concave portion 1b'. The tray t is guided along the traveling path g by the upper guide plates 1a and 1b.

In FIG. 1, horizontal lower guide plates 5a and 5b are disposed below an upper guide plate 1a located on the left side and an upper guide plate 1b located on the right side, respectively. A gap is formed between the lower guide plates 5a and 5b for passing a transport belt described later. Then, as shown in FIG. 2, the tray t traveling on the straight traveling paths 2 and 4 is arranged such that the outer periphery of the large diameter portion t1 of the tray t is placed on the lower guide plates 5a and 5b. It is configured. The gap between the upper guide plate 1a and the lower guide plate 5a located thereunder, and the upper guide plate 1b and the lower guide plate 5 located thereunder
Each of the gaps with b is slightly larger than the thickness of the large diameter portion t1 of the tray t.

6 is along the center line of the straight routes 2 and 4,
A round belt as a transport belt for applying a propulsive force to the tray t, which is disposed so as to slightly protrude upward from the upper surfaces of the lower guide plates 5a and 5b; Thus, in FIG. 1, the vehicle is configured to travel linearly from below to above. Large diameter portion t of tray t placed on lower guide plates 5a, 5b
The tray t is configured to travel along the travel path g by the lower surface of the tray 1 contacting the running round belt 6. The relationship between the traveling path g and the round belt 6 will be described. In the straight traveling paths 2 and 4, the round belt 6 and the traveling path g are matched so that the round belt 6 passes through the center line of the traveling path g. In the bending path 3, the round belt 6
In contrast, the traveling route g is shifted in one direction. Especially,
In the rectilinear portion 3b, the deviation amount (deflection amount) from the round belt 6 is maximum.

When the tray t is located on the straight paths 2 and 4, the tray t is placed on both lower guide plates 5a and 5b, and the lower surface of the large-diameter portion t1 is moved by the running round belt. 6 and is conveyed along the straight paths 2 and 4. As shown in FIG. 2, the round belt 6 is disposed along a substantially central portion of the straight traveling paths 2 and 4. Traveling, so that the tray t moves straight,
While traveling along 4, the eccentric thrust deviating from the central portion of the large diameter portion t1 of the tray t by the round belt 6 does not act on the tray t, so that the tray t does not rotate, Receiving the propulsive force from the round belt 6, it is conveyed linearly. The center of the tray t is located at the center of gravity of the tray t.

When the tray t enters the direction-changed introduction part 3a of the bending path 3 from the straight path 2, the tray t moves rightward in FIG. 1 along the direction-changed introduction part 3a. Then, the vehicle travels straight along the rectilinear portion 3b, then enters the derivation portion 3c whose direction has been changed via the stay portion 3d, and moves leftward in FIG. 1 along the derivation portion 3c whose direction has been changed. After that, the vehicle enters the straight path 4 from the deriving unit 3c.

The tray t that has entered the introduction section 3a whose direction has been changed from the straight path 2 to the bending path 3 is placed in the upper guide plate 1a, 1
In order to move rightward in FIG. 1 while being guided by b, the round belt 6 passes through an eccentric position shifted from the center of the large diameter portion t1 of the tray t. That is, it comes into contact with the lower surface eccentric to the left from the center of the large diameter portion t1. Therefore, the propulsive force of the round belt 6 acts on the tray t at an eccentric position deviated from the center (center of gravity position) of the large-diameter portion t1. It will start rotating in the direction. Thus, the tray t
Enters the introduction portion 3a whose direction has been changed from the straight path 2 to the bent path 3 and starts to rotate, the propulsive force of the round belt 6 in the rectilinear direction of the tray t is consumed by the rotational movement. The straight traveling speed of t will decrease.

While the tray t is located at the straight portion 3b of the bending path 3, as shown in FIG.
The large diameter portion t1 is configured to be supported by a lower guide plate 5b and a round belt 6 disposed on the right side in FIG. When the tray t is located at the straight portion 3b, the round belt 6 is further located on the outer peripheral side of the large-diameter portion t1 of the tray t, so that the rotation speed of the tray t increases and the straight traveling speed of the tray t further decreases. become.

Next, when the tray t enters the stagnating portion 3d from the rectilinear portion 3b of the bending path 3, the stagnating portion 3d
Since the upper guide plate 1b is shaped so as to suppress the advance of the tray t, the straight traveling speed of the tray t is further reduced. In some cases, it is not necessary to form the upper guide plate 1b in the stagnation portion 3d as described above.

The tray t is moved from the stagnant portion 3d to the bending path 3
, The tray t moves leftward in FIG. 1, and the round belt 6 gradually moves toward the center of the large diameter portion t1 of the tray t. Accordingly, the rotation speed of the tray t is reduced, and the straight traveling speed of the tray t gradually increases. Thereafter, when the tray t enters the straight traveling path 4 from the lead-out section 3c of the bending path 3, the round belt 6 passes through substantially the center of the large-diameter section t1 of the tray t.
Stops, and travels straight along the straight path 4.

Reference numeral 7 denotes an upper surface of the large-diameter portion t1 of the tray t located at the stagnant portion 3d of the bending path 3 so as to be directed above the round belt 6 and opposed to the traveling direction of the tray t. Air blowing nozzle for blowing air,
It is attached to a suitable support frame (not shown) which is erected on the upper guide plate 1a or the like. 7a is an air supply pipe for supplying air to the air ejection nozzle 7. The blowing of air from the air jet nozzle 7 is always performed except for a period described later.

As described above, the stagnant portion 3d of the bending path 3
Since the tray t is deflected from the straight path 4 and the round belt 6 is in contact with the large-diameter portion t1 of the tray t at a position eccentric from the center of the large-diameter portion t1 of the tray t, The tray t rotates. When the tray t rotates, the propulsive force of the tray t by the round belt 6 is reduced, so that air is ejected from the air ejection nozzle 7 at a predetermined speed so as to oppose the traveling direction of the tray t. The traveling of the tray t is stopped while continuing to rotate. Thus, the tray t rotates, and the round belt 6 is rotated.
When the propulsive force of the tray t is reduced, the air is blown so as to hinder the progress of the tray t, so that it is not necessary to increase the ejection speed of the air ejected from the air ejection nozzle 7, in other words, The travel of the tray t can be stopped without injecting strong air from the ejection nozzle 7.

Further, by blowing air toward the upper surface of the large diameter portion t1 of the tray t, the large diameter portion t1 of the tray t is blown.
Is pressed against the round belt 6. Therefore,
The slip generated between the large-diameter portion t1 of the tray t and the round belt 6 is reduced, and the rotation of the tray t is promoted.

The air jet nozzle 7 is set so as to blow air in a direction that promotes rotation of the tray t. Specifically, air is blown tangentially to the rotation direction of the tray t. Thereby, the rotation of the tray t is promoted. Toward the upper surface of the large diameter portion t1 of the tray t,
Instead of blowing out the air, as shown by the two-dot chain line in FIG.
The air ejecting nozzle 7 is disposed at a position where air is ejected in the tangential direction of the large diameter portion t1 or the small diameter portion t2, and an air curtain is formed in front of the tray t in the traveling direction to form the tray t. It is also possible to stop the traveling of the tray t while continuing the rotation.

When the ejection of the air from the air ejection nozzle 7 is stopped after the tray t has been stopped for a predetermined time in the stagnation section 3d, the tray t is conveyed by the round belt 6 while rotating, and Then, the vehicle enters the straight path 4 from the derivation section 3c of the bending path 3.

Reference numeral 8 denotes a predetermined position of the straight traveling path 2 (retaining portion 3
d) (a position on the upstream side in the transport direction with respect to d.)
However, when the presence of the tray t is detected, the ejection of the air from the air ejection nozzle 7 is stopped for a predetermined time (about 0.5 seconds) after the detection. Therefore, except for immediately after the sensor 8 detects the presence of the tray t, air is ejected from the air ejection nozzle 7 and the bent path 3
The tray t is stopped in the stagnating portion 3d. Further, when the sensor 8 detects the presence of the tray t, the ejection of air from the air ejection nozzle 7 is stopped, so that the tray t stopped at the stagnant portion 3d starts traveling. Become. When the tray t, the presence of which is detected by the sensor 8, is conveyed by the round belt 6 and comes off the sensor 8, the ejection of air from the air ejection nozzle 7 is restarted, and the tray t coming off the sensor 8 is bent. When it reaches the staying part 3d of the route 3, it stops.

The above-described tray stop device is provided in the traveling path of the automatic winder.
It is provided with a plurality of winding units, an actual bobbin supply device, an outlet device, and a bobbin removal device. The actual bobbin is supplied to the empty tray by the actual bobbin supply device, and the tray on which the actual bobbin is placed is transported to the exit device. The bobbin is subjected to a pouring process by a pouring device,
The actual bobbin subjected to the discharging process is conveyed to the winding unit while being placed on the tray. In the winding unit, the yarn is unwound from the actual bobbin, the bobbin enters an empty bobbin state, and is discharged from the winding unit. The empty bobbin discharged from the winding unit is conveyed to the bobbin extracting device while being placed on the tray, and is extracted from the tray by the bobbin extracting device. The empty tray after the empty bobbin is removed is stopped by the above-described tray stop device, and the work of placing the bobbin on the tray, the cleaning of the tray, and the like are performed.

The empty tray after the empty bobbin has been extracted by the bobbin extracting device is placed on the straight path 2 of the traveling path g.
When the sensor 8 detects the presence of the tray t, the ejection of the air from the air ejection nozzle 7 is stopped for a predetermined time. Stopped at the position 3d, the sensor 8
The tray t preceding the detected tray t is transported by the round belt 6 in the straight traveling path 4 direction. The tray t detected by the sensor 8 is guided by the upper guide plates 1a and 1b, and reaches the stagnant portion 3d of the bending path 3 from the straight path 2 via the introduction section 3a and the straight section 3b. Tray t
Enters the bending path 3, the position of the tray t with respect to the round belt 6 is gradually shifted, and the round belt 6 comes into contact with a position completely eccentric from the center of gravity of the tray t in the straight portion 3b and the staying portion 3d. Become like Therefore, the tray t
Starts to rotate. In the stagnation section 3d, the advance of the tray t is stopped by the air jetted from the air jet nozzle 7 as described above. The tray t which is stopped at the position of the stagnant portion 3d of the bending path 3 and on which the desired work such as the work of placing the bobbin on the tray and the work of cleaning the tray is performed,
When the subsequent tray t is detected by the sensor 8, the ejection of the air from the air ejection nozzle 7 is stopped, so that the sheet is conveyed in the direction of the straight path 4 by the round belt 6.

In the above-described embodiment, the stagnant portion 3d is formed between the rectilinear portion 3b and the lead-out portion 3c in order to further reduce the traveling speed of the tray t. It can be omitted. Therefore, the staying part 3d
Is omitted, the bending path 3 is constituted by the introduction section 3a, the straight traveling section 3b, and the derivation section 3c. Further, in the above-described embodiment, the round belt 6 is used as the transport belt for applying the propulsive force to the tray t, but a flat belt having a predetermined width may be used.

In the above-described embodiment, the means for moving the tray t relative to the transport belt so that the transport belt comes into contact with a position eccentric from the position of the center of gravity of the tray t is an upper part for guiding the tray t. Although the guide plates 1a and 1b are used, a lever for eccentrically moving the tray t with respect to the transport belt may be used instead of the upper guide plates 1a and 1b.

[0030]

Since the present invention is configured as described above, the following effects can be obtained.

Since the tray is stopped by blowing air to the tray, the tray stopping device for bobbin transport can be simplified and downsized.

Since the tray is stopped by blowing air to the tray, the tray and the tray stopping device for bobbin conveyance are not damaged.

The tray is moved relative to the transport belt so that the transport belt contacts the position eccentric from the center of gravity of the tray, and the transport force of the transport belt is converted into the rotational force of the tray. The tray can be stopped without jetting the ink, and thus energy saving can be realized.

Since the guide member for guiding the tray is shaped so as to suppress the progress of the tray at the position where the air is sprayed from the air injection nozzle, the tray can be stopped without increasing the air blowing from the air injection nozzle. Can be done.

[Brief description of the drawings]

FIG. 1 is a plan view of a bobbin transport tray stopping device of the present invention including a tray block diagram.

FIG. 2 is a vertical sectional view taken along line II of FIG. 1;

FIG. 3 is a vertical sectional view taken along line II-II of FIG. 1 excluding a tray.

[Explanation of symbols]

 g: traveling route t: tray 1a, 1b: upper guide plate 2, 4, ... straight traveling route 3: bending route 5a, 5b Lower guide plate 6 Round belt 7 Air jet nozzle 8 Sensor

Claims (3)

[Claims] 1. A bobbin transport tray stopping device, comprising an air ejection nozzle for blowing air in a direction in which a tray traveling along a traveling route is prevented from traveling. And means for moving the tray relative to the transport belt so that the transport belt is brought into contact with a position eccentric from the center of gravity of the tray and the propulsive force of the tray is converted into a rotational force of the tray. The bobbin transport tray stopping device according to claim 1. 3. The tray according to claim 1, wherein the guide member for guiding the tray has a shape that suppresses the advance of the tray at a position where air is blown from the air ejection nozzle. Tray stop device for bobbin transport.