JP2562596B2 - Web winding method and device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method and apparatus for winding a web (flexible strip) made of synthetic resin, paper, synthetic paper, metal, cloth or the like.

[Prior Art] A web such as a thermal paper for color printing is wound on a primary winding bobbin by a predetermined amount, and the winding end end of the web is attached to a secondary winding bobbin. That is, when this web is used, the web wound on the primary winding bobbin is sequentially wound on the secondary winding bobbin for use.

Conventionally, the web winding operation is performed by supporting a primary winding bobbin on a web winding shaft, rotating the primary winding bobbin to wind a predetermined amount of web, and then performing a manual operation of an operator. The web is cut by, and one end of the cut and separated web is attached to the secondary winding bobbin as the winding end by manual operation of the operator. Further, the other end of the cut and separated web is attached to a new primary winding bobbin as a winding start end by a manual operation of an operator.

[Problems to be Solved by the Invention] However, in the conventional web winding method,
Cutting the web wound on the next winding bobbin, attaching one end of the cut and separated web to the secondary winding bobbin, and attaching the other end of the web to a new primary winding bobbin. Since the process is performed at different timings with a fixed interval,
There is a limit to improving the efficiency of the web winding work consisting of each of these processes.

In addition, when the web is cut and wound, it is desired that the cut portion of the web does not generate a wasteful portion.

The present invention is directed to cutting a web wound on a primary winding bobbin, attaching one end of the cut and separated web to a secondary winding bobbin, and to a new primary winding bobbin on the other end of the web. The purpose is to efficiently and efficiently carry out the web winding work, which is each step of attaching and removing.

[Means for Solving the Problems] A web winding method according to the present invention is a method of winding a web on a primary winding bobbin and attaching a winding end of the web to a secondary winding bobbin. In the first winding bobbin, the web is wound around the primary winding bobbin, and the intermediate portion outside the primary winding bobbin is set to 1.
When the web is cut and separated at substantially the same time when it is cut by the book cutting line, each of the free ends of the web is held by the holding part, and one of the free ends held by the holding part is attached to the secondary winding bobbin. Substantially at the same time, the other free end held by the holding portion is attached to a new primary winding bobbin so as to be ready for new winding on the primary winding bobbin.

A web winding device according to the present invention supports a primary winding bobbin in a web winding device that winds a web on a primary winding bobbin and attaches a winding end of the web to a secondary winding bobbin. And a web winding shaft that rotates the primary winding bobbin to wind the web, and a bobbin supporting device that supports the secondary winding bobbin and a new primary winding bobbin with a fixed interval. When the middle part of the web wound around the primary winding bobbin outside the primary winding bobbin is cut by one cutting line, substantially simultaneously with cutting of the web to be cut and separated into holding parts. Holding and further attaching one free end held by the holding portion to the secondary winding bobbin, at the same time as attaching the other free end held by the holding portion to a new primary winding bobbin. It has a web cutting / attaching device.

[Operation] According to the present invention, there are the following operations.

Cutting of the web wound around the primary winding bobbin, attachment of one end of the cut and separated web to the secondary winding bobbin, attachment of the other end of the web to a new primary winding bobbin Each process
This can be performed continuously or simultaneously, and the web winding operation including the above steps can be efficiently performed.

There is one cutting line for cutting and separating the middle part of the web wound on the primary take-up bobbin, and one free end of the web by this cutting is attached to the secondary take-up bobbin and the other free end. The end is attached to a new primary winding bobbin. Therefore, after winding a required amount of web on the primary winding bobbin, the ends of the webs that are cut after the winding are wound onto the secondary winding bobbin and the new primary winding bobbin without waste. I can wear it.

[Embodiment] FIG. 1 is a front view schematically showing an example of a web winding device, FIG. 2 is a schematic view showing a bobbin loading / unloading part of the web winding device, and FIG. 3 is a web winding device. FIG. 4 is a schematic view showing a bobbin holding portion of the web winding device, FIG. 4 is a schematic view showing a winding part of the web winding device, FIG. 5 is a schematic view showing a winding operation sequence of the web winding device, and FIG. 6 is a web. Front view showing the cutting / bonding device, No. 7
The figure is a side view of FIG.

As shown in FIG. 2 (A), for example, the web winding device 10 winds a fixed amount of the web 2 onto the primary winding bobbin 1A from one end side thereof, and transfers the web 2 to the primary winding bobbin 1A. The secondary winding bobbin 1B is attached to the other free end after the completion of winding. The web 2 of this embodiment is a thermal printing paper for color printing which is provided with a color pattern which is continuous in the lengthwise direction and which has a plurality of color elements (cyan, magenta, yellow, etc.) adjacently arranged in the lengthwise direction to form one screen. Is.

The web winding device 10 includes a web feeding motor 11, a web feeding shaft 12, an edge adjusting device 13, a tension adjusting device 14, a screen counting device (winding amount detecting device) 15, a deflecting roll 16,
It has a web cutting / bonding device (web cutting / attaching device) 17, a web winding shaft 18, and a web winding motor 19.

Further, the web winding device 10 includes a bobbin loading / unloading device 2
0, a bobbin transfer device (bobbin supporting device) 21, and a bobbin exchange receiving stand 22.

Then, the web 2 is wound around the bobbin 1A by the web winding device 10 and the bobbin 1B is attached to the free end of the web 2 after winding.
The one-cycle winding work for attaching and detaching will be described.

The pallet 23 constituting the bobbin loading / unloading device 20 is conveyed from the loading station to the winding station while holding the bobbins 1A and 1B on the loading receiving trays 24A and 24B. The bobbin transfer device 21 receives and conveys the bobbins 1A and 1B having the webs 2 wound on the chucks 25A and 25B from the web winding shaft 18 and the web cutting / bonding device 17 (FIG. 2 (A)).

The bobbin transfer device 21 has a guide rod 26
A saddle 27 that moves along the head, a head 29 that moves up and down by a cylinder 28 supported by the saddle 27, four chucks 25A to 25D disposed on the head 29, and each chuck 25A to 25A supported by the head 29. 4 cylinders 30 to open and close 25D
And a feed screw 32 which is rotated by a motor 31 to reciprocate the saddle 27.

The bobbin transfer device 21 transfers the wound bobbins 1A and 1B held on the chucks 25A and 25B to the discharge trays 33A and 33B of the pallet 23, and at the same time to the loading trays 24A and 24B of the pallet 23. Chuck the held bobbins 1A and 1B
Receive at 25C and 25D (Fig. 2 (B)).

After the above work, the pallet 23 is transported from the winding station to the unloading station,
A new pallet 23 is carried into the winding station.

The bobbin 1B held on the chuck 25D of the bobbin transfer device 21 is transferred to the bobbin exchanging table 22 (FIG. 3 (A)), and this bobbin 1B is replaced by the chuck 25B of the bobbin transfer device 21 (first). FIG. 3 (B)).

Bobbin 1A set on the web winding shaft 18 in the previous cycle
The web cutting / bonding device 17 is operated on condition that a certain amount (a certain number of screens N) of the web 2 has been wound up.

That is, the web winding shaft 18 is driven by the web winding motor 19 to rotate while supporting the bobbin 1A, and winds the web 2 under tension. At this time, the edge adjusting device 13 automatically adjusts so that the central portion of the web 2 is always transferred in a state of being aligned with the pass line center. The tension adjusting device 14 applies the gravity acting on the tension weight 14A to the web 2 via the clutch 14B and the tension roll 14C as necessary to adjust the tension acting on the web 2.

The screen counting device 15 is a web 2 wound on a bobbin 1A.
The number of screens is counted, and the winding motor 19 can be stopped when it is detected that a certain amount (a certain number of screens N) of the web 2 is wound on the bobbin 1A. In addition, the screen counting device 15 uses the sensor 15A composed of a phototransistor to detect the web 2
The number of screens of the web 2 is counted by capturing the change in color tone of each screen in the transfer direction.

As shown in FIGS. 6 and 7, the web cutting / bonding device 17 includes a cutting blade 34 that moves transversely in the width direction of the web 2 to cut the web 2, and a cutting blade 34 for cutting / bonding the web 2. The left and right pressing and holding portions 35 that press and hold both sides of the cutting area on the new cores 1A and 1B of the bobbins 1A and 1B, and the tip portions of both ends of the cut web 2 to be adhered are suction-held, and both ends thereof It consists of left and right adhesive holding parts 36 for adhering the adhered parts to the double-sided adhesive tape 1D (see FIG. 5 (A)) provided in advance on the winding cores 1C of the bobbins 1A, 1B. The pressure holding unit 35 includes a vacuum suction unit 35A, and the adhesion holding unit 36 includes a vacuum suction unit 36A.

That is, the web cutting / bonding device 17 first advances the entire pressure holding portion 35 and the bonding holding portion 36 by the cylinder 37, and sets the pressure holding portion 35 on the pass line of the web 2. At this time, the chuck 25 of the bobbin transfer device 21
The cores 1C of the bobbins 1B and 1A held by B and 25C face the pressing and holding portions 35 and pinch the N + 1 screen portion of the web 2 between them and the bobbin transfer. The chuck 25A of the device 21 holds the bobbin 1A set on the web winding shaft 18 after the winding is completed (FIG. 4 (A)).

Here, the N + 1 screen portion of the web 2 is continuously sucked by the vacuum suction portion 35A of the pressure holding portion 35 and the vacuum suction portion 36A of the adhesive holding portion 36.

Next, the cutting blade 34 of the web cutting / bonding device 17 is a cylinder.
By the operation of 34A, the intermediate points of both pressing and holding parts 35 are traversed in the width direction of the web 2, and the intermediate part of the N + 1 screen part outside the primary winding bobbin 1A of the web 2 is cut by one cutting line. (FIG. 4 (A)). At this time, the web 2 to be cut and separated
Each of the two free ends of the vacuum suction unit 36A of the adhesive holding unit 36
Adsorbed and held by.

Next, the left and right adhesive holding parts 36 of the web cutting / bonding device 17
However, when the cylinder 38 is actuated, the restraint of the cylinder 38 in the forward direction is released, and the elastic force of the spring 39 causes the cylinder 38 to move forward. The tip portion is attached to the double-sided adhesive tape 1D provided on the winding core 1C of the bobbins 1A and 1B (Fig. 4 (B)).

At this time, the tip ends of the two free ends (bonded parts) of the web 2 that have been cut and separated are attracted to the vacuum suction part 36A of the adhesive holding part 36 to apply the tension applied to the web 2 during the winding. While maintaining, while gradually advancing on the suction surface of the vacuum suction section 36A as the adhesion holding section 36 advances, the bobbin 1A, 1B is pulled around the winding core 1C and both webs 2 are covered. The double-sided pressure-sensitive adhesive tapes 1D provided on the corresponding winding cores 1C are pressed and attached without wrinkles in a state where the adhesive portions are simultaneously back-supported by the corresponding attaching curved portions 36B. The sticking curved portion 36B is curved with the same curvature as that of the double-sided pressure-sensitive adhesive tape 1D provided on the winding core 1C. As a result, one free end of the web 2 is attached as a winding end to the secondary winding bobbin 1B, and at the same time, the other free end of the web 2 is replaced with a new primary winding bobbin.
Attached as the winding start end for 1A, the primary winding bobbin
It will prepare for the new winding to 1A.

The bobbin transfer device 21 holds the pair of bobbins 1A and 1B after the web 2 is completely wound on the chucks 25A and 25B, and the bobbin 1A bonded to the chuck 25C with one end of the web 2 as the winding start end. Hold this chuck 2
The bobbin 1A held by C is set on the web winding shaft 18 (Fig. 4 (C)).

The bobbin transfer device 21, which only holds the bobbins 1A and 1B after winding the web 2 on the chucks 25A and 25B, returns to the bobbin loading / unloading device 20.

When the bobbin 1A held on the chuck 25C of the bobbin transfer device 21 is set on the web winding shaft 18 as described above (FIG. 5 (B)), the web feeding motor 11 is driven to drive the web feeding shaft. The web 2 is unwound from the web original roll 3 attached to 12. The web 2 includes an edge adjusting device 13, a tension adjusting device 14, and a screen counting device 1.
5. After passing through the deflector roll 16, the bobbin 1A mounted on the winding shaft 18 is wound (FIGS. 5C and 5D).

As a result, when a certain amount of the web 2 is wound around the bobbin 1A, one cycle of the winding operation is completed, and the bobbin 1A wound up with the web 2 is used for the above operation in the next cycle.

 Next, the operation of the above practical example will be described.

According to the above-mentioned embodiment, when the web 2 is wound on the primary winding bobbin 1A, the intermediate portion of the web 2 is cut, and substantially at the same time, each of the two separated free ends of the web 2 is cut. Are held by the adhesive holder 36. In addition, the adhesive holder
One free end held by 36 is adhered to the secondary winding bobbin 1B as the winding end end, and at the same time as this, the other free end held by the adhesion holder 36 is newly wound as a winding start end. It is bonded to the winding bobbin 1A. That is, primary winding bobbin 1A
Of the web 2 wound around the web 2, and the web 2 cut and separated
It is possible to efficiently carry out the web winding work including the steps of adhering one end of the web to the secondary winding bobbin 1B and adhering the other end of the web 2 to a new primary winding bobbin 1A. .

Further, there is one cutting line for cutting and separating the intermediate portion of the web 2 wound on the primary winding bobbin 1A, and one free end of the web 2 by this cutting is attached to the secondary winding bobbin 1B. Then, the other free end is attached to the new primary winding bobbin 1A. Therefore, after winding the required amount of web 2 around the primary take-up bobbin 1A, the end portion of the web 2 that is cut after the take-up is not wasted, and the secondary take-up bobbin 1B and the new primary take-up bobbin are provided. Can be attached to each of 1A.

In the practice of the present invention, each of the free ends of the web to be cut and separated is held in the holding part under tension, and the web held in the holding part is maintained under the above-mentioned tension of the web. When the two free ends of the web are attached to the corresponding take-up bobbins, the free ends of the web can be attached to the take-up bobbin without wrinkling of the web.

As described above, according to the present invention, the web wound around the primary winding bobbin is cut, one end of the cut and separated web is attached to the secondary winding bobbin, and the web is cut. The web winding operation, which is each step of attaching the other end to the new primary winding bobbin, can be performed efficiently and without waste.

[Brief description of drawings]

FIG. 1 is a front view schematically showing an example of a web winding device,
FIG. 2 is a schematic diagram showing a bobbin loading / unloading section of the web winding device, FIG. 3 is a schematic diagram showing a bobbin holding section of the web winding device, and FIG. 4 is a winding unit of the web winding device. A schematic diagram showing
FIG. 5 is a schematic diagram showing a winding operation sequence of the web winding device,
FIG. 6 is a front view showing the web cutting / bonding device, and FIG. 7 is a side view of FIG. 1A: Primary winding bobbin, 1B: Secondary winding bobbin, 2 ...
Web, 10 ... Web winding device, 14 ... Tension adjusting device,
17: Web cutting / bonding device (web cutting / attaching device), 18: Web winding shaft, 19: Web winding motor,
21 …… Bobbin transfer device (bobbin supporting device), 34…
… Cutting blade, 36 …… Adhesive holding part, 36A …… Vacuum suction part.

Claims (4)

(57) [Claims] 1. A web winding method for winding a web on a primary take-up bobbin and attaching the winding end of the web to a secondary take-up bobbin, the method comprising the steps of: When the intermediate portion outside the primary winding bobbin is cut by a single cutting line, substantially simultaneously with holding both free ends of the web to be cut and separated by the holding portion, and one held by the holding portion. At the same time that the free end of the first winding bobbin is attached to the secondary winding bobbin, the other free end held by the holding portion is attached to a new primary winding bobbin to newly wind the primary winding bobbin. A method for winding a web, characterized by being prepared for winding. 2. The web according to claim 1, wherein both free ends of the web to be cut and separated are held by a holding part under tension, and the web is held under a state where the tension of the web is maintained. A method of winding a web, in which both free ends of the web held by the respective portions are attached to corresponding winding bobbins. 3. A web winding device for winding a web on a primary take-up bobbin and attaching the winding end of the web to a secondary take-up bobbin, wherein the primary take-up bobbin is supported and the primary take-up bobbin is supported. A web winding shaft that rotates the take-up bobbin to wind the web, a bobbin supporting device that supports the secondary take-up bobbin and a new primary take-up bobbin at a fixed interval, and a primary take-up bobbin. When the intermediate portion of the web wound on the outside of the primary winding bobbin is cut by one cutting line, substantially simultaneously with holding each of both free ends of the web to be cut and separated, Web cutting / attachment in which one free end held by the holding portion is attached to the secondary winding bobbin at approximately the same time as the other free end held by the holding portion is attached to a new primary winding bobbin. And a web winding device. 4. The web cutting / attaching device according to claim 3, wherein the web cutting / attaching device has a cutting blade that traverses in the width direction of the web to cut the web, and the holding portion is cut and separated. While holding both free ends of the web in a vacuum suction state, the free ends of the web and the corresponding secondary winding bobbin and new one
A web winding device that is an adhesive holding portion that is attached to each adhesive region of the next winding bobbin.