JPS63230459A - Method and apparatus for taking-up web - Google Patents

Abstract

PURPOSE:To improve the efficiency of web take-up operation by attaching almost simultaneously one free end of a web held by a holding section to a secondary take-up bobbin and the other free end to a primary take-up bobbin. CONSTITUTION:A web take-up shaft 18, while supporting a bobbin 1A, takes up a tensioned web 2. When a predetermined amount of web taken-up is sensed, a web cutting/boding device 17 sets a press holding section 35 to the pass line of web 2 by a cylinder 37 opposedly to bobbins 1A, 1B held by a transfer device to be adsorbed and held by a vacuum holder 35A and a vacuum suction portion 36A of a bonding holder 36. Under such condition, the web is cut off at the intermediate point by a cutting blade 34 and the bonding holder 36 is advanced by a spring 39 after released from the advance restriction due to a cylinder 38, so that one free end of web 2 is attached to a secondary take-up bobbin 1B as take-up terminating end and the other free end to a primary take-up bobbin 1A as take-up starting end. Thus, the web can be efficiently taken up.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and apparatus for winding a web (flexible band-like material) made of synthetic resin, paper, synthetic paper, metal, cloth, etc.

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

Conventionally, the above-mentioned web winding work involves supporting a primary winding bobbin on a web winding shaft, rotating the primary winding bobbin to wind a certain amount of web, and then manually carrying out the work by an operator. The web is cut by the operator, and one end of the cut and separated web is manually attached to the secondary winding bobbin as the winding end.

Further, the other end of the cut and separated web is manually attached to a new primary winding bobbin as the winding start end.

[Problems to be Solved by the Invention] However, in the conventional web winding method, the web wound on the primary winding bobbin is cut, and one end of the cut and separated web is removed from the secondary winding bobbin. Since the steps of attaching the web to a new primary winding bobbin and attaching the other end of the web to a new primary winding bobbin are performed at different timings at regular intervals, the web winding consists of these steps. There are limits to work efficiency.

The present invention involves cutting a web wound on a primary winding bobbin,
To efficiently perform the web winding work, which is the process of attaching one end of the cut and separated web to a secondary winding bobbin and attaching the other end of the web to a new primary winding bobbin. purpose.

Means for Solving Problem U] The web winding method according to the present invention includes a web winding method in which a web is wound onto a primary winding bobbin, and a winding end of the web is attached to a secondary winding bobbin. In the method, substantially simultaneously with cutting the intermediate portion of the web wound on the primary winding bobbin, holding each of both free ends of the web to be cut and separated in a holding part,
Further, at approximately the same time that one free end held by the holding part is attached to the secondary winding bobbin, the other free end held by the holding part is attached to a new primary winding bobbin. This is to prepare for new winding onto the next winding bobbin.

A web winding device according to the present invention is a web winding device that winds a web onto a primary winding bobbin and attaches a winding end of the web to a secondary winding bobbin, which supports the primary winding bobbin. a web winding shaft that rotates the primary winding bobbin to wind the web; a bobbin support device that supports the secondary winding bobbin and the new primary winding bobbin at a constant interval; Almost at the same time as cutting the middle part of the web wound on the primary winding bobbin, both free ends of the web to be cut and separated are held in a holding part, and one free end held in the holding part is At the same time as attaching the web to the secondary winding bobbin, the other free end held by the holding part is attached to the new primary winding bobbin. This is what I did.

[Operation] According to the present invention, when the web is wound onto the primary winding bobbin, the intermediate portion of the web is cut, and at the same time, each of the cut and separated free ends of the web is held. held in the department. Further, one free end held by the holding part is attached to the secondary winding bobbin as the end of winding, and at approximately the same time, the other free end held by the holding part is attached to the new winding bobbin as the winding start end. It is attached to the next winding bobbin. That is, 1
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. The steps are performed continuously or simultaneously, and the web winding operation consisting of each of the above steps can be performed efficiently.

[Example] Fig. 1 is a front view schematically showing an example of a web winding device;
Figure 2 is a schematic diagram showing the pobbin loading/unloading section of the web winding device, Figure 3 is a schematic diagram showing the pobbin changing section of the web winding device, and Figure 4 is the winding section of the web winding device. A schematic diagram showing
FIG. 5 is a schematic diagram showing the winding work order of the web winding device;
FIG. 6 is a front view of the web cutting/bonding device, and FIG. 7 is a side view of FIG. 6.

For example, as shown in FIG. 2(A), the web winding device 10 winds a certain amount of web 2 onto a primary winding bobbin IA from one end thereof, and transfers the web 2 to the primary winding bobbin IA. After winding is completed, a secondary winding bobbin IB is attached to the other free end. The web 2 of this embodiment is a color printing thermal paper having a color pattern constituting one screen by arranging a plurality of color elements (cyan, magenta, yellow, etc.) adjacent to each other in the longitudinal direction. It is.

The web winding device 10 includes a web supply motor 11, a web supply shaft 12), an edge adjustment device 13, a tension adjustment device 14,
Screen count device (winding amount detection device) 15, deflector roll 16, web cutting/adhesive device (web cutting/attachment device) 17, web winding shaft 18, web winding motor 19
have.

The web winding device 10 also includes a pobbin charging/discharging device 2.
0, pobbin transfer device (pobbin support device) 21,
It has a pot bin replacement cradle 22.

Hereinafter, a one-cycle winding operation will be described in which the web 2 is wound around the pobbin IA by the web winding device 10, and the pobbin IB is attached to the free end of the web 2 after winding.

(2) A pallet 23 constituting the bobbin loading/unloading device 20 is conveyed from the loading station to the winding station with the bobbins IA and IB held on loading pedestals 24A and 24B. The bobbin transfer device 21 includes bobbins IA and IB that have wound the web 2 onto chucks 25A and 25B.
is received from the web winding shaft 18 and the web cutting/bonding device 17 and conveyed (FIG. 2(A)).

Note that the bobbin transfer device 21 has a guide rod 2
6, 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 supported by the head 29. It consists of four cylinders 30 that open and close 25D and a feed screw 32 that is rotated by a motor 31 to reciprocate the saddle 27.

■The bobbin transfer device 21 has chucks 25A, 2
The pobbins IA and IB after winding held on the pallet 5B are delivered to the ejection cradle 33A and 33B of the pallet 23, and at the same time, the pobbin LA and IB held on the loading cradle 24A and 24B of the pallet 23 are delivered. It is received by the chuck 25C125D (Fig. 2(B)).

In addition, after the above operations (■) and (■) are completed, the pallet 23 is transported from the winding station to the unloading station,
A new pallet 23 is carried into the winding station.

■ Transfer the pobbin IB held in the chuck 25D of the bobbin transfer device 21 to the pobbin exchange holder 22 (Fig. 3 (A)), and transfer the pobbin IB to the chuck 25B of the bobbin transfer device 21 (Fig. 3 (A)). Figure 3 (B)).

(2) The web cutting/bonding device 17 operates on the condition that a certain amount (-the number of electronic screens N) of the web 2 has been wound around the pobbin IA set on the web winding shaft 18 in the previous cycle.

That is, the web winding shaft 18 is driven and rotated by the web winding motor 19 while supporting the pobbin IA, and winds the web 2 under tension. At this time, the edge adjustment device 13 automatically adjusts so that the center portion of the web 2 is always conveyed in a state that coincides with the pass line center. The tension adjustment device 14 adjusts the tension acting on the web 2 by applying the gravity acting on the tension way 14A to the web 2 via the clutch 14B and the tension roll 14C as necessary.

The screen counting device 15 counts the number of screens of the web 2 wound on the pobbin IA, and stops the winding motor 19 when it detects that a certain amount (-the number of screens N) of the web 2 is wound on the pobbin IA. possible. The screen counting device 15 counts the number of screens on the web 2 by detecting color tone changes in each screen of the web 2 in the transport direction using a sensor 15A made of a phototransistor.

As shown in FIGS. 6 and 7, the web cutting/bonding device 17 includes a cutting blade 34 that moves across the width of the web 2 to cut the web 2, and a cutting blade 34 that cuts the web 2 by cutting the web 2 when cutting/bonding the web 2.
New pobbins IA and IB core IC on both sides of the cutting area.
The left and right pressing holding parts 35 press and hold the ends of the cut web 2 at both ends, and hold the end parts of the cut web 2 by suction. It consists of left and right adhesive holding parts 36 that are attached to the provided double-sided adhesive tape ID (see FIG. 5(A)). The suppression holding section 35 includes a vacuum suction section 35A, and the adhesive holding section 36 includes a vacuum suction section 36A.

That is, the web cutting/bonding device 17 first advances the press holding section 35 and the adhesive holding section 36 as a whole using the cylinder 37, and sets the press holding section 35 at the pass line of the web 2. At this time, the bobbin transfer device 1t21
Pobin IB held in chucks 25B and 25C of
, IA, each winding core IC faces each pressing holding part 35,
The N+1 screen portion of the web 2 is pinched between each suppressing holding part 35, and the chuck 25A of the pobbin transfer device 21 holds the pobbin IA set on the web winding shaft 18 after winding is completed ( Figure 4(A)).

Here, the N+1 screen part of the web 2 includes the vacuum suction part 35A of the press holding part 35 and the vacuum suction part 36A of the adhesive holding part 36.
continues to be adsorbed by

■Next, the cutting blade 34 of the web cutting/bonding device 17 moves across the middle point of the re-pressing holding part 35 in the width direction of the web 2 by the operation of the cylinder 34A to cut the middle part of the N+1 screen part of the web 2. (Figure 4 (A)). At this time, each of both free ends of the web 2 to be cut and separated is attached to an adhesive holding portion 3.
It is sucked and held by the vacuum suction section 36A of No. 6.

Next, the left and right adhesive holding parts 36 of the web cutting/adhering device 17 are released from the restraint in the forward direction by the cylinder 38 by the operation of the cylinder 38, and are moved forward by the elastic force of the spring 39, and the vacuum suction part 36A, the tips of both ends of the cut web 2 to be adhered are attached to Pobin LA, 1B.
(FIG. 4(B)).

At this time, the leading ends of both free ends (bonded parts) of the cut and separated web 2 are attracted to the vacuum suction part 36A of the adhesive holding part 36, and the tension applied to the web 2 during winding in (2) is applied to the web 2. While maintaining this, as the adhesive holding part 36 moves forward, it gradually slides on the suction surface of the vacuum suction part 36A, and is routed around the core ICs of the corresponding pobbins IA and IB.
Both wave adhesive portions of the web 2 are simultaneously supported on the back side by the corresponding adhesive curved portions 36B, and are pressed and adhered without wrinkles to the double-sided adhesive tape 1D provided on the corresponding core IC. .

Note that the adhesive curved portion 36B is curved with the same curvature as the curvature of the double-sided adhesive tape ID provided on the core IC. As a result, one free end of the web 2 is attached as the winding end to the secondary winding bobbin IB, and at the same time,
■The other free end of the web 2 is a new primary winding pobbin IA.
The primary winding pobbin I is attached as a winding start end to the
This will prepare for new winding to A.

■The bobbin transfer device 21 chucks the pair of bobbins IA and IB after winding the web 2 to a chuck 25A.
, 25B, the pobbin IA bonded with one end of the web 2 as the winding start end is held in the chuck 25C, and the pobbin IA held in this chuck 25C is set on the web winding shaft 18 (the fourth Figure (C)).

Note that the bobbin transfer device 21, which only holds the pobbins IA and IB after winding the web 2 on the chucks 25A and 25B, is the same as the pobbin loading/discharging device 20 described in (2) above.
Return to

■When the bobbin IA held by the chuck 25C of the bobbin transfer device 21 is set on the web take-up shaft 18 as described above (FIG. 5(B)), the web is supplied by the drive of the web supply motor 11. A web 2 is unwound from a web roll 3 mounted on a shaft 12. The web 2 passes through an edge adjustment device 13, a tension adjustment device 14, a screen count device 15, and a deflection roll 16, and is wound onto a bobbin IA attached to a winding shaft 18 (Fig. 5(C), D)).

As a result, when a certain amount of the web 2 is wound onto the bobbin IA, one cycle of the winding operation is completed, and the bobbin IA on which the web 2 has been wound is subjected to the operation (2) in the next cycle.

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

According to the above embodiment, when the web 2 is wound up on the primary winding pobbin IA, the middle part of the web 2 is cut, and at the same time, each of the cut and separated free ends of the web 2 is cut. is held by the adhesive holding part 36. Furthermore, one free end held by the adhesive holding part 36 is glued to the secondary winding bobbin IB as a winding end end, and at the same time, the other free end held by the adhesive holding part 36 is glued to the winding start end. It is then glued to the new primary take-up pobbin IA. That is, the web 2 wound on the primary winding bobbin IA is cut, one end of the cut and separated web 2 is adhered to the secondary winding bobbin IB, and the other end of the web 2 is newly wound on the primary winding bobbin IB. It becomes possible to efficiently perform the web winding operation consisting of each step of adhering to the pobbin IA.

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

[Effects of the Invention] As described above, according to the present invention, the web wound on the primary winding bobbin is cut, and two ends of the cut and separated web are cut.
It becomes possible to efficiently perform the web winding operation, which consists of the steps of attaching the web to the next winding bobbin and attaching the other end of the web to a new primary winding bobbin.

[Brief explanation of the drawing]

FIG. 1 is a front view schematically showing an example of a web winding device;
Figure 2 is a schematic diagram showing the bobbin loading/unloading section of the web winding device, Figure 3 is a schematic diagram showing the bobbin changing section of the web winding device, and Figure 4 is the winding section of the web winding device. A schematic diagram showing
FIG. 5 is a schematic diagram showing the winding work order of the web winding device;
FIG. 6 is a front view of the web cutting/bonding device, and FIG. 7 is a side view of FIG. 6. IA... Primary winding bobbin, IB... Secondary winding bobbin, 2... Web, 10... Web winding device, 14.
...Tension adjustment device, 17...Web cutting/gluing device (
web cutting/attachment device), 18... web winding shaft, 1
9... Web winding motor, 21... Bobbin transfer device (bobbin support device), 34... Cutting blade, 3
6... Adhesive holding part, 36A... Vacuum suction part. Agent Patent Attorney Shuji Shiokawa Figure 2 (A) (B) Figure 3 of 33B (A) N - Go to A1 □

Claims (4)

[Claims] (1) In a web winding method in which the web is wound on a primary winding bobbin and the winding end of the web is attached to a secondary winding bobbin, the intermediate portion of the web wound on the primary winding bobbin At approximately the same time as the web is cut, both free ends of the web to be cut and separated are held in a holding part, and further, at approximately the same time as one free end held in the holding part is attached to the secondary winding bobbin, the holding part is held. A web winding method characterized in that the other free end held by the web is attached to a new primary winding bobbin in preparation for new winding onto the primary winding bobbin. (2) In claim 1, each of both free ends of the web to be cut and separated is held in a holding part under tension, and while the web is maintained under tension, the web is held in a holding part under tension. A web winding method in which both free ends of a held web are attached to corresponding winding bobbins. (3) In a web winding device that winds the web onto a primary winding bobbin and attaches the winding end of the web to a secondary winding bobbin, the primary winding bobbin is supported and the primary winding A web winding shaft that rotates the bobbin to wind the web, a bobbin support device that supports the secondary winding bobbin and a new primary winding bobbin at a fixed interval, and a web winding shaft that winds the web on the primary winding bobbin. Almost at the same time as cutting the middle part of the web, both free ends of the web to be cut and separated are held in a holding part, and one free end held in the holding part is attached to a secondary take-up bobbin. A web winding device comprising: a web cutting/attachment device that attaches the other free end held by the holding portion to a new primary winding bobbin substantially simultaneously with the attachment. (4) In claim 3, the web cutting/attachment device includes a cutting blade that cuts the web by moving transversely in the width direction of the web, and a vacuum suction state for both free ends of the cut and separated web. A web winding device comprising an adhesive holding section that holds the web at the same time as the web winding bobbin and adheres the free ends thereof to respective adhesive areas of a corresponding secondary winding bobbin and a new primary winding bobbin.