JP2000063040A - Thread winding device recovering glass plate protective thread - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with maintenance operations for recovered threads with the entanglement eliminated and the like of the threads by providing a thread winding device recovering a glass plate protective thread to reuse it as is when the thread is recovered out of a space between glass plates placed over a pallet. SOLUTION: This invention is concerned with a thread winding device recovering a glass plate protective thread interposed between glass plates, and the device is equipped with a shift roll 13 permitting a thread S to be reciprocally moved along a winding core shaft, a support shaft 18 supporting a winding core, and with a support 7 supporting the support shaft 18 capable of being moved up and down, and the support shaft 18 is so constituted as to be moved up as a winding diameter becomes larger.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a bobbin winding device. More specifically, the present invention relates to a yarn winding device that collects glass plate protecting yarn.

[0002]

2. Description of the Related Art FIG. 5 shows a flowchart of a glass plate forming process for window glass for automobiles. A belt-shaped glass plate is continuously manufactured by a normal float glass manufacturing method or the like (step S1). This belt-shaped glass plate is cut into the size of an automobile window glass and chamfered (step S2).
The flat glass plate thus cut is loaded on a pallet (step S3). The glass sheets stacked on the pallet are conveyed to the bending and forming furnace, loaded and unloaded from the pallet, and bent and formed in the heating furnace (step S4).

When the glass plates are conveyed to the forming furnace using the pallet, a plurality of cut flat glass plates are vertically stacked and stacked on the pallet. In order to prevent damage to the glass plates due to contact between the glass plates when the glass plates are stacked, a thread for protecting the glass plates is interposed between the glass plates to intervene. This thread is sandwiched with a slack so as to cover almost the entire surface of the glass plate, and one continuous thread is repeated 2-3 times and folded back, and is continuously mounted between the glass plates on the pallet.

After transporting such a pallet to the forming furnace,
The glass plates are taken out from the pallet one by one by the robot arm, and at the same time, the thread sandwiched between the glass plates is wound. At this time, every time one glass plate is taken out, the rotation roller is used to wind the yarn covering the glass plate surface on the pallet by the rotation by the roller to collect it in the drum can (step S5).
Next, the entanglement and entanglement of the yarn in the drum can are disentangled and maintained and stored again (step S6). The yarn prepared in this manner is used again to feed the yarn in the step of loading the glass plates on the pallet to interpose the yarn between the glass plates (step S).
7).

[0005]

However, in the above-mentioned conventional process for collecting and reusing the glass plate protecting yarn, the glass plate protecting yarn is collected from between the glass plates, and if it is housed in the drum can, The yarn is entangled in the drum and entangled, and if it is reused as it is, it causes troubles in the work such as stopping the device when the yarn is delivered.
Therefore, it is necessary to loosen the yarn collected in the drum can, cut the entangled portion, and reconnect it. Such maintenance work of the recovered yarn is troublesome and reduces productivity, and waste of resources occurs because a large amount of unreusable yarn is generated due to entanglement and the cost is increased because a new yarn is used. It was In addition, a large work space including a drum can installation space and the like is required for the maintenance work of such collected yarn, which is a space limitation of the entire factory.

The present invention has been made in consideration of the above prior art, and when the yarn is collected from between the glass plates on the pallet, the entanglement of the yarn is eliminated and maintenance work of the collected yarn is unnecessary, and the yarn can be reused as it is. An object of the present invention is to provide a yarn winding device for collecting yarn for protecting a glass plate.

[0007]

In order to achieve the above-mentioned object, the present invention provides a yarn winding device for collecting a glass plate protecting yarn interposed between a plurality of glass plates stacked on a pallet. The rotary shaft connected to the motor, the shift roll mounted on the rotary shaft for reciprocating the yarn in the axial direction, and the rotary roll that comes into contact with the shift roll surface from above and receives the rotational force. A winding core that winds the thread,
The winding core is provided with a support shaft on which the core is rotatably mounted, and a column that supports the support shaft so as to be movable up and down. There is provided a yarn winding device for collecting glass plate protecting yarn, characterized in that the support shaft is raised as the diameter increases.

According to this structure, the glass plate protecting yarn is wound around the core of the shift roll in the axial direction of the core while being wound around the core with a uniform winding diameter. Since it is possible to prevent the entanglement of the yarn, maintenance work of the collected yarn is unnecessary, and the yarn can be reused as it is in the step of loading the glass plate on the pallet. For this reason, the work process of recovery and reuse is significantly shortened, the productivity is remarkably increased, a work space is not required, and resources are saved and costs are reduced.

A preferred configuration example is characterized in that it has a plurality of support shafts for the winding cores, and these support shafts are arranged in a turret type in sequence at the winding position facing the shift roll. .

According to this construction, when the winding of the yarn on one winding core is completed, the next winding core prepared in advance can be arranged at the winding position, so that the winding core is replaced. Time can be saved and the bobbin winding work can be performed efficiently.

A preferred configuration example is characterized in that a limit switch for winding detection is provided for detecting that the support shaft has reached a predetermined position for raising operation.

According to this structure, when the yarn is wound around the winding core and the winding diameter becomes large and the support shaft rises to reach the predetermined position, the limit switch for winding detection operates and the winding core moves. Since it indicates the replacement time, the yarn of a constant winding amount is always stably collected without excess or deficiency.

In a further preferred configuration example, a tension detecting limit switch is provided which is actuated by the tension of the wound yarn when the tension exceeds a predetermined value, and the tension detecting limit switch is connected to the motor. It is characterized by that.

According to this structure, when the glass plate is removed and the loose yarn is wound up, and when the yarn that is still sandwiched between the glass plates is tried to be wound up, the tension detects the limit switch for tension detection. Is activated and the motor is turned off. When one of the glass plates holding the thread is taken out and the thread is slackened again, the tension is released, the limit switch is released and the motor is turned on. With this, each time the glass plate is removed with a simple structure, the yarn collecting and winding operation can be performed in conjunction with this, and the workability is improved.

[0015]

1 is a front view of a glass plate protecting thread collecting thread winding device according to an embodiment of the present invention, and FIG. 2 is a side view thereof. As shown in the drawing, the winding device for collecting glass plate protecting yarn according to the present invention has a base 2 provided with casters 1, and a support base 6 is fixed to the top of the base 2 at approximately the center thereof. The lower column 3 is provided, and the column 7 is further provided on the support base 6. A guide rod 10 extending upward from the support base 6 is fixed, and a thread guide hole 11 is provided at the tip thereof. A tension detecting limit switch 4 is attached to the lower column 3, and an operating lever 4a having a threading hole 5 is provided at the tip thereof.

A motor 12 is fixed on the support base 6, and a shaft 14 on which a shift roll 13 is mounted is connected to the motor 12. As a result, the shift roll 13 is rotated by the motor 12, and the yarn is wound while reciprocating along the axis by the groove 8 provided in the shift roll 13. Guide rails (LM guides) are provided on the sides of the columns 7.
15 is equipped. An elongated rotating plate 19 is attached to a sliding member 16 that can slide up and down along the guide rail 15 via a rotating shaft 17. Support shafts 18 are rotatably mounted on the upper and lower ends of the rotary plate 19 via bearings 20, respectively.

The rotary plate 19 rotates about the rotary shaft 17 in a turret manner to rotate the upper and lower support shafts 18. A winding core 31 around which the yarn is wound is fixed to the support shaft 18 by a screw 21 or an appropriate means. The winding core mounted on the lower support shaft 18 is in pressure contact with the shift roll 13 by its own weight (weight of the sliding member 16, the rotating plate 19 and the like).
The winding core is also rotated by the rotation of 3 to wind the yarn. At this time, the yarn is wound on the winding core 31 by the groove 8 of the shift roll 13 described above.
Along the axis and reciprocates in the axial direction, and is wound around the winding core 31 with a uniform winding diameter.

It is also possible to use the support shaft itself as a winding core. In this case, since the support shaft (winding core) is attached to the yarn winding device to be reused later, it is necessary to separately attach the support shaft to the yarn winding device. On the other hand, if the support shaft and the winding core are separated from each other, the mounting operation of the winding core alone to the support shaft is simple, so that the support shaft and the winding core may be separate bodies rather than the winding core. preferable.

The pillar 7 is provided with a clamp 22 for fixing the sliding member 16. Normally, as shown by the dotted line in the figure, the clamp 22 is bent and its lever 26 is retracted inside the guide rail 15, so that the sliding member 16 can freely move on the guide rail 15. Moving. A round bar-shaped projection 9 is provided on the side surface of the sliding member 16. When the thread winding diameter increases and the sliding member 16 rises along the guide rail 15 and exceeds the position of the clamp 22, when the clamp 22 is pulled up from the position indicated by the dotted line to the horizontal position indicated by the solid line, the lever 26 moves. It projects to the side surface of the guide rail 15. The protrusion 9 of the sliding member 16 is placed on the lever 26.
By mounting and supporting the sliding member 16 on the lever 26
It is held by and does not descend.

A limit switch 24 for detecting that the sliding member 16 has risen to the upper limit position of the guide rail 15 is provided at the upper end of the side surface (opposite to the clamp) of the column 7.
An actuator 23 that operates this is provided on the sliding member 16. A lamp 25 that is turned on by the detection of the limit switch 24 is provided on the top of the column 7.

In the yarn winding device having the above structure, one continuous yarn S sandwiched between a plurality of glass plates on a pallet is used.
Is drawn out from between the glass plates on the pallet in the thread winding process, passes through the thread guide hole 11 at the tip of the guide rod 10, and then the threading hole 5 provided in the operating lever 4a of the tension detecting limit switch 4. Through the groove 8 of the shift roll 13 as described above, the reel 31 is wound around the winding core 31 mounted on the support shaft 18, and a thread winding roll is formed on the winding core 31.

The tension detecting limit switch 4 operates when a tension of a predetermined value or more is applied to the yarn being wound.
That is, when the yarn is wound while being sandwiched between the glass plates, a large pulling force is generated, and the tension causes the operating lever 4a at the tip of the tension detecting limit switch 4 to be pulled upward to the winding side, and Bend upward from the starting point. As a result, the tension detecting limit switch 4 is operated, the power of the motor 12 is turned off, the rotation of the shift roll 13 is stopped, and the winding operation is stopped. Then, when one of the glass plates holding the thread is removed and the thread is slackened again, the operating lever 4a is lowered to its original position by its own weight, and the tension detecting limit switch 4 turns on the power of the motor 12 to shift the roll. 13 is rotated and the bobbin winding operation is restarted. When the diameter of the yarn winding roll on the winding core increases as the yarn winding operation progresses, the sliding member 16 slides on the guide rail 15 and the support shaft 18 of the yarn winding roll rises. When the sliding member 16 rises, the actuator 23 attached to the sliding member 16 also rises with it.

When the sliding member 16 moves up along the guide rail 15 to the upper limit position, the winding detection limit switch 24 is pushed up by the actuator 23 to operate, and the lamp 25 provided on the top of the column 7 is turned on. It can be seen that the lamp 25 sufficiently wound the yarn on the winding core.
Here, the motor 12 is once stopped, the clamp 22 holds the sliding member 16 as described above, and holds the bobbin roll wound around the winding core together with the rotating plate 19. In this state, remove the bobbin roll. Subsequently, the turret type rotary plate 19 is rotated around the rotary shaft 17, and the other upper support shaft 18 is arranged at the lower bobbin winding position. Here, when the clamp 22 is pushed down and released, the sliding member 16 descends by its own weight, so that the winding core set at the winding position and the shift roll 13 come into contact with each other, set the yarn on the winding core, and set the motor 1
By turning on the power of No. 2, the bobbin winding is started.

When the yarn is wound around the winding core, the yarn wound around the winding core is naturally present between the shift roll surface and the winding core. In that case, the shift roll surface and the winding core do not come into direct contact with each other, but when the yarn is not wound as the winding core that comes into contact with the shift roll surface from above and receives the rotational force, the shift roll surface comes into direct contact with the shift roll surface. When the yarn is wound, it means the contact through the yarn in the wound state.

The removed thread winding roll can be used as it is in the thread winding step before the step of loading the glass plate on the pallet. FIG. 3 shows the structure of such a yarn winding device for reuse. As described above, the spindle 33 is attached to the winding core 31 of the winding roll 30 collected by the winding device via the bearing 32. The support shaft 33 is provided on both left and right guide plates 3 having vertical guide grooves (not shown) whose upper ends are open.
Insert it into 4 from above and attach it. The support shaft 33 descends along the vertical guide groove due to the weight of the bobbin winding roll 30, and the bobbin winding roll 30 has a roller 35 connected to a motor 36.
Pressure contact with. In this state, the motor 36 is driven to rotate the roller 35 to unwind the yarn from the yarn winding roll 30.

FIG. 4 is a flow chart of a glass plate forming process for an automobile window glass using the above-described yarn winding device for collecting glass plate protecting yarn. Steps S1 to S4 are the same as those of the conventional process shown in FIG. In the present embodiment, the yarn unwinding process (step S8) is performed from the yarn winding process (step S5) before the glass plate processing (step S4) by using the unwinding device shown in FIG. It can be carried out. As a result, the time required for thread maintenance can be saved, all the wound threads can be reused, resources can be effectively used, and new threads are not used, which also saves costs. In addition, since there is no need for a work space for thread maintenance, limited factory space can be effectively used.

[0027]

As described above, in the present invention, the glass sheet protecting yarn is wound around the core with a uniform winding diameter while reciprocating in the axial direction of the core along the groove of the shift roll. Since it is possible to prevent the yarn from being entangled when being taken up and wound up, the maintenance work of the recovered yarn is not necessary, and it can be reused as it is in the glass plate loading process on the pallet. For this reason, the work process of recovery and reuse is significantly shortened, the productivity is remarkably increased, a work space is not required, and resources are saved and costs are reduced.

[Brief description of drawings]

FIG. 1 is a front view of a winding device for collecting glass plate protecting yarn according to an embodiment of the present invention.

FIG. 2 is a side view of the winding device for collecting glass plate protecting yarn according to the embodiment of the present invention.

FIG. 3 is a schematic view of a yarn winding device applied to the present invention.

FIG. 4 is a flowchart of a glass plate molding process for an automobile window glass using the glass plate protecting yarn winding device according to the embodiment of the present invention.

FIG. 5 is a flowchart of a conventional glass sheet molding process for automobile window glass.

[Explanation of symbols]

1: casters, 2: base, 3: lower support, 4: tension detection limit switch, 4a: operating lever, 5: threading hole, 6: support, 7: support, 8: groove, 9: protrusion, 10:
Guide bar, 11: thread guide hole, 12: motor, 13: shift roll, 14: shaft, 15: guide rail, 16: sliding member, 17: rotary shaft, 18: support shaft, 19: rotary plate,
20: Bearing, 21: Screw, 22: Clamp, 2
3: Actuator, 24: Limit switch for winding detection, 25: Lamp, 26: Lever.

Claims (4)

[Claims] 1. A yarn winding device for collecting a glass plate protecting yarn interposed between a plurality of glass plates loaded on a pallet, the rotating shaft being connected to a motor, and the rotating shaft on the rotating shaft. Mounted on the shift roll for reciprocating the yarn along the axial direction, a core that comes into contact with the surface of the shift roll from above to receive a rotational force and winds the yarn, and the core is rotatable. The support shaft includes a support shaft to be mounted and a column that supports the support shaft so as to be movable up and down. The support shaft is wound on the winding core while reciprocating in the axial direction and the winding diameter increases. A winding device for collecting glass plate protecting yarn, wherein the yarn winding device is configured to rise. 2. A plurality of support shafts for the winding core are provided, and the support shafts are arranged in a turret-type one at a winding position opposite to the shift roll. A yarn winding device for collecting the yarn for protecting the glass plate described above. 3. A glass sheet protecting thread for collecting glass sheet according to claim 1, further comprising a limit switch for winding detection for detecting that the supporting shaft has reached a predetermined position for raising. Bobbin device. 4. A tension detecting limit switch that is actuated by the tension of the wound yarn when a tension of a predetermined value or more is generated, and the tension detecting limit switch is connected to the motor. The winding device for collecting the glass plate protecting yarn according to claim 1.