JP3014687B1 - Product take-up device - Google Patents

Abstract

Abstract: [Object] To prevent lateral slippage and winding wrinkles from occurring in a wound product. A rotating body to which a plurality of sets of a pair of holders located at both ends of a core is attached,
And a plurality of guide mechanisms 20 that can be moved from the inside of the rotating body 14 to the outside in accordance with the increase in the product winding diameter. The product 11 is wound around the core 15 at a predetermined position of the rotating body 14, and after cutting, the retainer 19 for the next core 15 is rotated by the rotating body 14. Move to a predetermined position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a product winding device for winding a continuously supplied product around a core held at both ends by a holder.

[0002]

2. Description of the Related Art For winding tapes, films, sheets and the like having no pressure-sensitive adhesive layer, such as pressure-sensitive adhesive tapes, conventionally, as shown in FIG. Has been used. In the above-described apparatus, three rolls 1, 2, and 3 are arranged at appropriate intervals so that a first receiving portion 4 and a second receiving portion 5 are formed, and a core 6 is attached to the first receiving portion 4. Is supplied, and the winding of the product 7 is performed by rotating the two rolls 1 and 2. When a predetermined amount is wound, the product 7 is moved to the second receiving portion 5, and the next core is transferred to the first receiving portion. 4, the process of cutting the product 7 by running the blade downstream of the new winding core and removing the wound product 8 is repeated.

[0003] In the above-described apparatus and process, when the wound product is moved from the first receiving portion to the second receiving portion, the winding tension fluctuates, and the winding width is changed due to a change in the product width or lateral displacement during the movement. It is pointed out that problems such as generation of wrinkles are likely to occur. In addition, since the tension is also lost at the end of the wound product after cutting the product, winding wrinkles are likely to occur.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object thereof is to perform a series of winding operations from the start of winding to the completion of winding at a predetermined position. To be able to do it without moving.

Another object of the present invention is to improve the quality of a wound product by completing the winding while pressing the product and cutting the product.

[0006]

The present invention for solving the above-mentioned problems is based on a plurality of guide wheels provided on the apparatus body side.
The small gear that is rotatably supported and meshes with the large gear
And a pair of rotating bodies driven by
Multiple sets on the rotating body as a set of two to hold the core
An attached retainer, a guide mechanism that enables the retainer to move from the inside of the rotating body to the outside according to an increase in the product winding diameter, and a radially inward portion around the core and the product. It is provided to rotate in contact with and perform a winding operation.
And a drive roll having a minimum set of two rolls. The product is wound around a core at a predetermined position of the rotating body, and after cutting, the retainer of the next core is rotated by rotating the rotating body. It has a configuration for shifting to a predetermined position.

The present invention also provides a plurality of drive rolls which rotate around the winding core and the product to perform a winding operation, and a pressurizing method which contacts the product being wound and presses it against the drive roll. It is also possible to provide a configuration having a roll and cutting means for moving along the drive roll axis on the upstream side of the product supply and cutting the product.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A product winding device according to the present invention is for winding a continuously supplied product around a core whose both ends are held by a holder.

The products continuously supplied are the same as conventional adhesive tapes, tapes without an adhesive layer, films, sheets and other strips. Such a product is wound up by being wound around the core using a winding core, and a fixed volume of the product is obtained. In other words, the device of the present invention is a device for manufacturing a rolled product.

Since the core is held by the retainers at both ends, the retainer is configured to move in the axial direction of the core and to be able to approach and separate. The core can be introduced between the retainers by separating,
This is because the core can be held by approaching. In order to wind the product around the core, a drive roll that can rotate around the core and around the product being wound is used. The winding is performed by rotating the winding core and the product by the rotational force of the driving roll, and the configuration up to this point can be considered to be the same as the conventional one.

However, while the conventional apparatus employs a method in which the drive roll is fixed and the winding position on the winding core side is moved, the apparatus of the present invention determines the winding position in consideration of the above problems. We created a method to rotate the drive roll side with the position.

The apparatus according to the present invention adopting this method comprises a rotating body which is rotatable by mounting a plurality of sets of two retainers,
A guide mechanism that enables these retainers to move from the inside of the rotating body to the outside as the product winding diameter increases, and rotates in contact with the core and the periphery of the product to perform the winding operation. A plurality of the driving rolls.

The rotator moves the retainer on a circular orbit by rotation, and stops the retainer until the winding process is completed at a predetermined position set on the same orbit. The core for the next winding is held by another set of retainers, and when the rotating body is rotated to discharge the wound product of the previous set, the next core occupies a predetermined position. Is operated as follows. The core retainer shifts between a core receiving position and a winding position in order, like a turret. That is, it can be said that the apparatus of the present invention is of a turret type.
It is desirable that the number of turret holders be two or more.

Since the retainer performs the winding operation at a predetermined position away from the inside of the rotating body to the outside, it can be moved outward in accordance with an increase in the product winding diameter. Is desirable. A guide mechanism for this purpose is provided for each holding body, and also has a role of enabling the core after moving outward to be movable again inside. The moving direction is considered to be standard in a direction radially outward from the center of the rotating body, but is not limited thereto.

The drive roll gives a necessary force for winding by contacting one or more rolls with one winding core. Considering the case where two drive rolls are used for one core and drive rolls are arranged inside and on both sides of the core, one of the adjacent drive rolls can be used for driving the front and rear cores. The number of drive rolls is the same as the number of sets of retainers, which is convenient.

In order to use the driving force of the driving roll more efficiently, it is desirable to use a pressing roll that contacts the product being wound and presses it against the driving roll. The pressure roll acts to pinch the product being wound on the core with the drive roll. Therefore, the product being wound on the core can be stably rotated without dancing on the driving roll, and the tension is more stable. The pressure roll is provided to be able to advance and retreat toward a predetermined position where winding is performed.

In order to further cut the wound product, a cutting means can be provided on the upstream side of the product supply. This cutting may be performed by a knife moving in a direction substantially along the drive roll axis. The cutting, of course, involves moving the blade, for example, to cut the product over its entire width, so that in connection with this movement, it is also possible to cause the application of a picking ribbon.

Since the cutting of the product is performed under the action of the pressure roll, the tension does not disappear even at the end of the wound product, but it is temporarily stopped until the end is wound around the next core. By doing so, wrinkling at the end of the book can be prevented. For this purpose, an end-of-end constant tension mechanism is added. In this mechanism, the end of the winding is temporarily fixed to, for example, an upstream drive roll. For the temporary fixing, a method of stabbing with a plurality of needles or a method of holding the roll with a clamping force of a magnet or the like that can be magnetically attracted to the roll is used.

When the fixed amount of winding is completed, the holder is removed from the holder and the state shifts to a discharge state. At this time, the wound product cut from the succeeding portion sends the next core to a predetermined position.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments.

In the product winding device according to the present invention, the product 11 is continuously supplied from the supply line 12,
Through tension adjusting means 13 such as an expander roll,
It is introduced into a rotating turret frame having a rotating body 14. The rotating body 14 is rotatable about a central axis, and the core 15
And a set of left and right parts which are detachably arranged. See FIG.

In the illustrated device, the rotating body 14 is a large gear 16
a, and is rotated by a small gear 16b provided at an appropriate position in the turret frame, and has a guide wheel 16c arranged around the large gear 16a. Several driving rolls 18 are provided on the rotating body 14, and are provided at equal angular intervals on a circumference of a constant radius centered on the rotating body center axis. It is provided movably in the direction. See FIG.

In the embodiment, the rotating body 14 has a large gear structure, and the angular rotation accuracy and durability are particularly good. this
Thus, the rotating body 14 is attached to the apparatus main body 10 in a horizontal axis.
It is rotatably mounted around.

Two drive rolls 18 are used for each holder, and are disposed inside the core 15 held by the holder 19 and on both sides of the radial axis connecting the core 11 and the center of the rotating body. Therefore, the required number of drive rolls 18
Is the same as the number of sets. The retainer 19 can be moved radially outward from the center of the rotating body 14 by a guide mechanism 20 provided on the rotating body 14 in accordance with an increase in the product winding diameter. Can be moved radially inward after being removed.

Further, the retainer 19 can move forward and backward in a direction parallel to the central axis. The retainer 19 is provided at the tip of the slide shaft 17a and can freely rotate, and can reciprocate in the axial direction by the axial slide device 17b. See FIG. 5 chain line.

The retainer 1 in such a rotating body 14
9 is set as a predetermined position 21 for winding the product, and the position taken by the holder 19 before the position in the rotation direction of the rotating body (upstream in the product supply direction) is the position of the core supply. Position 22 is reached. The core 15 immediately before being held by the retainer 19 and wound in the next step may be one of rolls for guiding the continuously supplied product 11 as shown in FIG.

The core 1 is inserted into the holder 19 toward the supply position 22.
A device for supplying 5 is provided on the device body side. In this device, the core storage section 23 can be advanced toward the supply position 22 and can be retracted to the original position, and can be driven by a driving device 24 such as a cylinder device. In the figure, reference numeral 25 indicates a stopper of a stock core, which is operated from a device control system. Reference numeral 26 denotes a front pressure roll, which is provided so as to be able to press inward the core 15 supplied between the retainers at the supply position 22. This pressing force extends to the product 11 being supplied.

A pressing mechanism having a rear pressing roll 27 for pressing the core 15 at a predetermined position 21 for winding the product inward is provided on the apparatus main body side. The pressing force of the rear pressure roll 27 acts on the winding core 15 at the winding position (21) and thus around the product wound therearound, and comes into pressure contact with the driving roll 18. The illustrated rear pressure roll 27 is provided at the tip of a linear drive device 28 illustrated as a cylinder device, and the operation direction is toward the center of the rotating body 14.

At the upstream side of the predetermined position 21, the product 11
A cutting means 30 for cutting the sheet is also provided on the apparatus main body side. The illustrated cutting means 30 includes a blade 31, a driving device 32 represented by a cylinder device that allows the blade 31 to advance and retreat with respect to a product being supplied, and the driving device 32 to be parallel to the center axis of the rotating body. A traveling device 33, which is shown as a rodless cylinder for moving in a desired direction, and a blade receiver 34 which serves as a cutting board for receiving the advanced blade 31 and cutting the product 11. See FIG.

The blade receiver 34 is provided for each drive roll 18 and retracts to the center of the rotating body 14 when it is not operated.
In order to move to a position where it can intersect with the cutting edge of the blade 31 during operation, it becomes operable when it comes to a position where it can be linked with the reciprocally movable operator 35. The illustrated blade receiver 34 is provided so as to be movable along the outer periphery of the driving roll, and operates against a return spring as the return means 36. Reference numeral 37 denotes a receiving portion for connection with the operation element 35.

A mechanism for affixing the cutting ribbon 38 to the product cutting section is provided in the cutting means 30 in order to allow the affixing and cutting to proceed simultaneously. The ribbon 38 is guided from the ribbon bobbin 39 through a required path to a ribbon attaching wheel 41 located at substantially the same position as the tip of the blade 31,
Is attached to the end product surface. See FIG.

A constant tension mechanism 43 for preventing wrinkles at the end of the winding is also provided immediately after (downstream of) the cutting point by the means 30. The mechanism 43 has a contact 44 that can move back and forth on the surface of the upstream drive roll 18 involved in winding and that can be attached to and detached from (or separated from) the surface. The contact 44 uses a magnet or a magnetic sheet to hold the product 11 between itself and a drive roll 18 (a magnetic sheet may be wound) 18 made of a magnetic material. Alternatively, when the surface of the drive roll is formed of a resilient material such as rubber, the end of the product may be pierced and stopped by a contactor 44 having a needle or the like penetrating therethrough.

The constant tension mechanism 43 is connected to the drive roll 18.
Advance mechanism 4 for advancing contact 44 to a predetermined surface of
5 and a pressing mechanism 46 for pressing the contactor 44 against the predetermined surface. In the case of illustration, any of the above mechanisms 4
5, 46 are also shown as using a cylinder device.

A discharge conveyor 47 is provided at a position where the completed wound product 11 'is discharged from the rotating body 14. Reference numeral 48 denotes a rolled product posture changing device disposed at the end.
The wound product 11 'in the embodiment is assumed to have a width exceeding 1 m and a winding diameter of 20 cm or more. Therefore, the device 48 is provided in the case where the posture needs to be changed. The device 48 includes a receiver 49 for the wound product 11 ′, a holding member 51 for the wound product 11 ′ stored therein, and a power device 52 for changing the attitude of the receiver 49.
And consists of See FIG.

The operation of this apparatus will be briefly described. The product 11 produced in the preceding process and continuously flowing passes through the drive rolls 18 and 18 at positions A → B in FIG.
At a predetermined position 21 between them, it is wound around the winding core 15 set on the drive rolls 18, 18, and a winding operation is performed. When a sensor (not shown) detects that a predetermined amount of the product 11 has been wound, the drive roll 18 stops rotating. Thereafter, until the next winding starts, the product is in a standby state where it is absorbed by an accumulator (not shown).

After the blade receiver 34 has advanced to the end of the product that has been stopped after winding, the next core 15 is supplied from the core storage unit 23 to the supply position 22 and the retainers 19, 19 are supplied.
Is held. The retainer 19 is pressed against the blade receiver 34 by the movement of the reciprocating device. Here, when the cutting means 30 advances toward and comes into contact with the blade receiver 34 which has advanced, the cutting device 31 starts running in a direction crossing the end of the product by the operation of the traveling device 33 to perform cutting. At the same time, the ribbon 38 is pulled out from the ribbon bobbin 41 at the advanced position, travels in the product width direction, and attaches the ribbon 38 to the cut end of the end of the winding.

Before the operation of the cutting means 30 and the ribbon attaching mechanism, the end of the product is held down by the operation of the constant tension mechanism 43. Upon completion of the cutting and the ribbon application, the cutting means 30 and the like return to the standby position. The same applies to the portion that assists cutting, such as the blade receiver 34.

When the rotation of the drive roll 18 is started, the end moves to the position E in FIG. 3 in a state where the end is pressed by the constant tension mechanism 43, and the constant tension mechanism 43 separates from the wound product there. Return to the standby position. This completes the product winding. Next, the rotating body 14 rotates, and the rolled product 1
1 'is released from the holding by the holder, and the discharge conveyor 47
Is discharged on top. At this time, the next winding core 15 is at a predetermined position 21 for winding.

[0039]

Since the present invention is constructed and operates as described above, the winding core completes the winding operation without moving the predetermined position for winding the product at all.
Since the winding tension changes substantially uniformly from the start to the end of the winding, and there is no lateral displacement, a high quality wound product can be efficiently produced. In particular, by providing a constant tension mechanism for pressing and cutting the end of the winding, the tension at the end of the winding becomes invariable, and the problem of wrinkles and the like generated due to the disappearance of the conventional tension can be solved.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a product winding device according to the present invention.

FIG. 2 is an enlarged view of a main part of the same.

FIG. 3 is an enlarged view of a main part of the same.

FIG. 4 is an exploded perspective view showing the periphery of a driving roll.

FIG. 5 is a cutaway explanatory view of a holding mechanism.

FIG. 6 is a side view before the cutting mechanism is operated.

FIG. 7 is a side view after the cutting mechanism is operated.

FIG. 8 is a plan view of a cutting mechanism.

FIG. 9 is an explanatory view of a constant tension mechanism.

FIG. 10 is an explanatory diagram of a posture conversion device.

FIG. 11 is an explanatory view showing the principle of a conventional winding device.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-72545 (JP, A) JP-B-48-269 (JP, B1) JP-B-36-22902 (JP, B1) JP-B-51- 42139 (JP, B1) JP 48-9666 (JP, B1) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65H 18/00-19/30

Claims (7)

(57) [Claims] 1. A product winding device for winding a continuously supplied product around a core whose both ends are held by a retainer, wherein a plurality of products are provided on a device main body side.
Rotatably supported by guide wheels and meshes with large gears
Cormorant left and right pair of rotating body driven by the pinion, times as two pair to hold the core located at both ends of the winding core
A plurality of sets of retainers attached to the rolling element, a guide mechanism for moving the retainers from the inside to the outside of the rotating element in accordance with an increase in the product winding diameter, and a radius around the winding core and the product.
And causing the rotating winding action against the inward
And a drive roll with a minimum set of two sets , the product is wound around a core at a predetermined position on the rotating body, and after cutting, the retainer of the next core is rotated by the rotating body. A product winding device that shifts to the predetermined position by rotation of the product. 2. The product winding device according to claim 1, wherein the retainers are arranged on the turret at equal angular intervals on a circumference around the center axis of the rotating body. 3. A product winding device for winding a continuously supplied product around a winding core whose both ends are held by a retainer, comprising: a plurality of product winding devices provided on an apparatus main body side.
Rotatably supported by guide wheels and meshes with large gears
Cormorant left and right pair of rotating body driven by the pinion, times as two pair to hold the core located at both ends of the winding core
A plurality of sets of retainers attached to the rolling element, a guide mechanism for moving the retainers from the inside to the outside of the rotating element in accordance with an increase in the product winding diameter, and a radius around the winding core and the product.
And causing the rotating winding action against the inward
A drive roll provided with a minimum of two pairs , a press roll that contacts the product being wound and presses it against the drive roll, and a drive roll shaft almost upstream of the product supply. Cutting means for moving along and cutting the product. 4. A product winding device for winding a continuously supplied product around a winding core whose both ends are held by a retainer, wherein a plurality of products are provided on a device main body side.
Rotatably supported by guide wheels and meshes with large gears
Cormorant left and right pair of rotating body driven by the pinion, times as two pair to hold the core located at both ends of the winding core
A plurality of sets of retainers attached to the rolling element, a guide mechanism for moving the retainers from the inside to the outside of the rotating element in accordance with an increase in the product winding diameter, and a radius around the winding core and the product.
And causing the rotating winding action against the inward
A drive roll provided with a minimum of two pairs , a press roll that contacts the product being wound and presses it against the drive roll, and a drive roll shaft almost upstream of the product supply. Cutting means for moving the product along the cutting direction and cutting the supplied product, winding up the product at a predetermined position on the rotating body, and rotating the rotating body to the next position after the cutting is completed. A product winding device having a configuration for shifting by means of: 5. The product according to claim 1, wherein the drive roll applies a force required for winding by contacting one or more rolls with one core. Winding device. 6. The method according to claim 4, further comprising the step of attaching the opening ribbon to the end of the wound product in connection with the operation of the cutting means.
Product take-up device as described. 7. A constant tension mechanism for preventing wrinkling at the end of a wound product by a method of sticking with a plurality of needles or a method of pressing with a magnet or holding force.
5. The product winding device according to any one of 4.