JP3834696B2 - Automatic winding device for film winder - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automatic winding device in a film winder, particularly an adhesive film winder.
[0002]
[Prior art]
Conventionally, in order to obtain web roll products such as paper and plastic films, surface-driven winders have been widely used. The surface drive type winding machine has a pair of winding rollers (surface driving rollers) arranged in parallel, and rotates the core placed on the winding unit composed of the pair of winding rollers. The web fed into the lower part of the core is wound up, and after the winding is finished, the web roll product is unloaded from the winding unit and the end of the web roll product is cross-cut in the width direction, Next, the starting end portion of the cross-cut web is automatically wound around the next core supplied to the winding portion, and winding is started again.
[0003]
However, when the web roll product is an adhesive film roll having an adhesive surface facing the outside or the inside such as a wallpaper product or a glass protective sheet product, inconvenience occurs when the web roll product is wound in the above-described process. That is, in the case of an adhesive film roll, the starting end portion of the web that has been cross-cut in the above-described process is automatically and properly wound around the next core by the conventional winding mechanism because of its adhesiveness. It is difficult to attach. For example, the adhesive films overlap and adhere to each other, and are wound around the core in half, or easily adhere to the surrounding rollers and frames, and the adhesive film is skewed and adheres to the core in a distorted state. There is a problem that winding is not performed smoothly in the state of starting winding of the process, which causes wrinkles and distortion to the roll product, and in the surface driving method to the core of the adhesive film No technology for automatic winding has been found yet.
[0004]
[Problems to be solved by the invention]
The present invention has been made paying attention to the above problems, and in the surface driving method, the start end of the adhesive film is properly fixed to the core to start winding smoothly, and winding without wrinkles or distortion is possible. An object of the present invention is to provide an automatic winding device for a pressure-sensitive adhesive film winding machine.
[0005]
[Means for Solving the Problems]
The present invention has been made in consideration of the above problems, and the core is transferred to the lower part of the core by moving the core from the core supply unit to the winding unit having a pair of winding rollers and rotating the core. A film winder that winds up, cuts a film continuous with a film roll that has been wound up and carried out from the winding unit to a termination processing unit, and starts up the starting end of the film formed by the cutting. In the automatic winding device of the film winder wound around the core transferred to the part, the fastening tape is attached to the core of the core supply part with the adhesive surface exposed outward, and the length of the outer surface of the core Fastening tape sticking means for sticking over the direction, and core transfer means for transferring the core with the fastening tape from the core supply part to the winding part where the film roll that has been wound up is unloaded and vacant The end of winding that has been carried out from the winding unit A cutting means for cutting the film continuously in tension with the film roll on the downstream side of the winding section, and a film on the upstream side of the winding section in the direction opposite to the feeding direction, and cutting the cutting means A retracting means for pulling back the starting end portion of the formed film to the winding portion; and a starting end portion of the film that is pulled back to the winding portion by the pulling means and a direction opposite to the winding direction when the film is pulled back. Corresponding to the rotating core fastening tape, the film is wound around the core with the starting end of the film being bonded to the fastening tape in a non-extending state from the fastening tape in the film delivery direction. The present invention provides an automatic winding device for a film winder characterized in that it solves the above problems.
[0006]
In the present invention, after the fastening tape is applied, the fastening tape attaching means positions the core in advance in the core supply portion so that the starting end portion of the film corresponds to the fastening tape in the winding portion. It is preferable to provide rotation means for rotating together.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, the present invention will be described in detail based on the embodiment shown in FIGS.
FIG. 1 shows a film winder A that winds an adhesive film around a core to obtain an adhesive film roll. The process for producing a roll product in the film winder A will be schematically described. First, the raw fabric C fed from the raw fabric supply section B is applied to the slit section F in which the circular blade E is applied to the receiving cylinder D. And is slit into an adhesive film G having a predetermined width. Next, the pressure-sensitive adhesive film G is fed into the winding part H, and the winding part H is wound up to obtain the pressure-sensitive adhesive film roll I. Further, the adhesive film roll I after winding is transferred from the winding section H to the termination processing device K by the transfer means J, and then cut as described later. I am making it.
In addition, the adhesive film sent out from the raw fabric supply part B in FIG. 1 has the lower surface side as an adhesive surface, and in this state, the silicon contact is applied to the part where the adhesive surface contacts in the delivery path that leads to the termination processing device K. The feeding of the adhesive film G is made so as not to hinder the delivery.
[0008]
In order to sequentially produce adhesive film rolls that are roll products from the raw material, this film winder A is supplied with a core made of a paper tube or the like to the winding part H, and the starting end of the adhesive film is automatically used as the core. An automatic winding device 1 that is designed to be wound is incorporated. And in the automatic winding apparatus 1, in the downstream of the winding part H drawn | drawn continuously by the adhesive film roll of the winding end by moving the adhesive film roll which winding was complete | finished to the said termination | terminus processing apparatus K When the adhesive film is cut, the starting end portion of the adhesive film formed by the cutting is also associated with the next core. In the automatic winding device 1, the retracting means 2 is positioned between the slit portion F and the winding portion H. As shown in the drawing, the retracting means 2 is connected to a position fixing roller 20 supported by a frame or the like of the winder A via a stay 22 via a stay 22, and the accumulating roller 21 is connected to the position fixing roller 20. 21 is provided so as to be rotatable within a range of a required angle around the position fixing roller 20, and the adhesive film G slit therebetween is passed through the position fixing roller 20 and the accumulating roller 21. The path length from the slit portion F to the winding portion H is changed by the change in the position of the accumulator roller 21 that moves while contacting.
Further, the retracting means 2 has an expansion / contraction cylinder 23, which is connected so that the operation of the expansion / contraction cylinder 23 becomes a rotation operation of the accumulator roller 21. It is assumed that the path length until is set.
[0009]
The winding unit H is a parallel arrangement of winding rollers h1 and h2 which are a pair of surface driving rollers in a conventional film winder, and a core a placed between the winding rollers h1 and h2 is provided. It is a part which winds up the start end part of adhesive film G sent to the lower part of the core a by rotating, and produces an adhesive film roll.
And in order to supply the core a to this winding part H, the core supply part 3 is arrange | positioned in the vicinity. In the core supply unit 3, a plurality of cores are arranged in the supply tray 30 as shown in the drawing, and each time the winding unit H is vacated from the lowest core a, the core supply unit 3 takes up the winding unit. It is moved through the core transfer means 4 that reciprocates between H.
[0010]
The core transfer means 4 has a pair of air cylinders 40 arranged at the free end corresponding to the end of the core a at the standby position in the core supply unit 3 and sandwiching the core a by the action of the air cylinder 40. It consists of a chuck arm 41, and the core a is transferred to the winding unit H by the chuck arm 41. At the standby position in the core supply unit 3, the core “a” is allowed to rotate and waits, but after being sandwiched by this chuck arm 41, it is released from the action of the air cylinder 40 after the take-up unit H is transferred. In the meantime, the core a is provided so as not to rotate with respect to the chuck arm 41.
[0011]
Further, the automatic winding device 1 is provided with fastening tape attaching means 5. The fastening tape applying means 5 is arranged corresponding to the standby position where the lowest core a of the core supply unit 3 is waiting, and moves along the longitudinal direction of the core at the standby position. On the other hand, the fastening tape 6 made of a double-sided adhesive tape having a predetermined width (about 10 to 20 mm) with respect to the outer peripheral direction of the core a is adhered. The fastening tape applying means 5 is equipped with, for example, a double-sided adhesive tape tape roll, and attaches the double-sided adhesive tape that is fed out while peeling the release tape from the tape roll as it moves in the longitudinal direction of the core a. Thus, the fastening tape 6 with the adhesive surface exposed to the outside is pasted over the longitudinal direction of the core a.
The fastening tape sticking means 5 is stuck at a fixed position of the core without changing depending on the size of the core a, for example, at the top of the standby core a. Then, as will be described later, when the core a is transferred to the winding part H, the fastening tape 6 is attached so that the fastening tape 6 is in a predetermined position according to the size of the core a. Rotating means 7 is provided for pre-aligning and rotating the core a in the standby state after the completion.
[0012]
The rotating means 7 includes a rotating disk 70 that can be driven and rotated so as to be able to be separated from and attached to the core a in the standby position, and is positioned corresponding to a fixed portion 71 (a protrusion in the illustrated example). A cam 72 that rotates together with the rotating disk 70 is provided so as to be locked to the fixed portion 71 and stopped, and the amount of rotation of the rotating disk 70 is set by determining the amount of rotation of the cam 72. The rotating disk 70 is rotated in contact with the core a, so that the fastening tape 6 is aligned. Then, by adjusting the amount of rotation of the cam 72 in accordance with the size of the core a (that is, adjusting the relative moving length of the fixed portion 71), it can be worn even when the size of the core a is different. The tape 6 can be properly aligned.
[0013]
In the figure, 8 is a cutting means. The cutting means 8 cuts the adhesive film G on the end side that is continuously drawn out to the adhesive film roll I when the adhesive film roll I that has been wound up by the winding unit H is pulled out to the termination processing device K. Thus, a starting end portion for winding on the next core to be transferred to the winding portion H is formed by this cutting. The cutting means 8 comprises a fixed blade 80 positioned on the lower surface side of the adhesive film G and a rotary blade 81 applied from above the adhesive film G, and after the wound adhesive film roll I is drawn out to the termination processing device K. Cutting is performed by moving the rotary blade 81 onto the adhesive film G and moving the rotary blade 81 in the width direction of the adhesive film G while engaging the rotary blade 81 with the fixed blade 80.
At the time of this cutting, the wound adhesive film roll I located in the termination processing device K is held by the pressing roller 9 so as not to rotate, and a slight tension is applied to the drawn adhesive film G. Thus, the adhesive film G is appropriately cut to prevent unnecessary sticking to the fixed blade side or the like.
[0014]
Next, the operation of the automatic winding device 1 will be described.
(A) First, the adhesive film G slit to a certain width in the core a is wound by the winding part H, and when the adhesive film roll I having a predetermined winding diameter is obtained, the winding roller stops and the winding is stopped. finish.
(A) The transfer means J supported movably on the frame of the film winder A moves forward to the winding portion H side so that the hook plate L of the transfer means J is positioned above the adhesive film roll I. To stop. Next, the hook plate L is rotated downward to hook the adhesive film roll I so that the adhesive film roll I can be transferred to the termination processing device K side.
(C) The transfer means J moves backward to transfer the adhesive film roll I to the termination processing device K. At this time, as described above, the adhesive film G continues to the winding unit H in a state where the adhesive film G is continuous on the terminal side of the adhesive film roll I.
[0015]
(D) On the other hand, in the core supply unit 3, the next core a is in a standby state on the supply base at the lowest position of the supply tray 30, and the fastening tape 6 is attached to the core a by the fastening tape applying means 5. Worn.
(E) When the fastening tape 6 is attached, the core a is rotated by the rotating means 7 to a predetermined angle, and the fastening tape 6 is aligned at a position described later.
(F) The core a having the fastening tape 6 attached from the core supply unit 3 to the winding unit H that has been transported and has been transported to the adhesive film roll I that has been wound is The core a is transferred while being kept free of rotation.
(G) The position of the fastening tape 6 adhered to the core transferred to the winding part H is set very strictly, and the adhesive formed by the cutting means 8 on the downstream side of the winding part H As will be described later, when the starting end of the film G is pulled back to the winding portion H and bonded to the fastening tape 6 of the core a, the starting end of the adhesive film G comes out from the fastening tape 6 even at 1 mm. If it is, the adhesive film G is taken to the take-up roller before it is wound around the core a due to the adhesiveness of the adhesive film G to the take-up roller. Therefore, the starting end of the adhesive film G is set to be fixed at a position returned to the upstream side of the winding part H within a range of 1 to 2 mm from the fixing tape 6, and the core a is set to be this setting. The core a is transferred to the winding unit H so that the rotation is adjusted at the standby position and the adjusted alignment state is not lost by the core transfer means 4.
[0016]
(H) When the core a is transferred to the winding unit H, the cutting means 8 removes the tensioned adhesive film G connected from the adhesive film roll I transferred to the termination processing device K to the termination processing device K. And a cross cut at an intermediate position between the winding part H and the winding part H. At this time, as an operation to apply tension to the adhesive film G, the pressure-sensitive roller 9 holds the adhesive film roll I which has been wound up, and the adhesive film G is pulled back slightly upstream, and further the brake is applied upstream. To.
Pulling back for applying tension to the adhesive film G can be performed by the pulling means 2. When the tension is applied to the adhesive film G by the operation of the retracting means 2, for example, the brake that prevents the feed from the raw material supply section B to the retracting means 2 is received by the slit section F, for example. This can be done by making the cylinder D unable to rotate by the action of an air clutch. Alternatively, the brake may be applied in the raw fabric supply unit B.
[0017]
(K) When the cutting by the cutting means 8 is completed, the pulling-back means 2 is operated by the action of the expansion / contraction cylinder 23, and the accumulating roller 21 is moved to a position where the path of the adhesive film G extends (the adhesive line shown by the phantom line in FIG. 1). As a result of the expansion of the path of the adhesive film G), the starting end of the adhesive film G rotates in the reverse direction while the winding rollers h1 and h2 of the winding unit H are in a free rotating state and to the top of the winding unit H. Pulled back.
The core a of the next winding that has been transferred onto the winding unit H is rotated in the direction opposite to the winding direction by the pulled back adhesive film G, and the fastening tape 6 stuck to the core a is attached. The position is exactly the same as the starting end of the adhesive film G that has been pulled back, and the starting end of the adhesive film G is properly secured to the fastening tape 6. As shown in the figure, the position where the fastening tape 6 stops is set to the position of the contact point where the winding roller h1 upstream of the two winding rollers h1 and h2 contacts the core a.
If the start end of the adhesive film G is shifted from the position of the contact by either plus or minus, the start end hits the core a when the winding operation is performed, causing bending and wrinkling.
(S) After the start end of the adhesive film G is properly secured to the fastening tape 6 of the core a, the take-up rollers h1 and h2 are again driven and rotated in the take-up direction to wind the adhesive film G, Winding of the next process is started. During winding, the chuck arm 41 of the core transfer means 4 is clamped from the left and right in a state where the lock is released and the core a is rotatable. In this way, the winding to the core a is performed, and when the winding is completed, the process proceeds to the step (a), and the adhesive film roll I is sequentially manufactured by repeating this.
In the above embodiment, the lower surface side of the pressure-sensitive adhesive film is the pressure-sensitive adhesive surface, but the present invention can be implemented even in a pressure-sensitive adhesive film having the upper surface side of the pressure-sensitive adhesive surface.
[0018]
【The invention's effect】
According to the present invention described above, when the pressure-sensitive adhesive film is wound around the core, the start end of the pressure-sensitive adhesive film is properly fixed to the core fastening tape, and the pressure-sensitive adhesive film is folded in half and wound around the core. There is no winding or winding around the core, and proper winding without wrinkles or distortion becomes possible. Therefore, it is possible to produce an adhesive film roll in which an adhesive film is properly wound by a film winder equipped with a wind-up unit that is a surface drive system, and has an excellent practical effect. is there.
[Brief description of the drawings]
FIG. 1 is an explanatory view schematically showing an example of a film winder equipped with an automatic winding device according to the present invention.
FIG. 2 is an explanatory view schematically showing a rotating means and a cam mechanism in an example.
FIG. 3 is an explanatory view showing winding of an adhesive film in a winding unit.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Automatic winding apparatus 2 ... Pull-back means 3 ... Core supply part 30 ... Supply tray 4 ... Core transfer means 41 ... Chuck arm 5 ... Fastening tape sticking means 6 ... Fastening tape 7 ... Rotating means 70 ... Rotating disk 71 ... fixed part 72 ... cam 8 ... cutting means 9 ... pressing roller a ... core A ... film winder G ... adhesive film H ... winding parts h1, h2 ... winding roller I ... adhesive film roll

Claims (2)

A film winder that moves a core from a core supply unit to a winding unit equipped with a pair of winding rollers, and rotates the core to wind the film fed to the lower part of the core around the core. Of a film winder that cuts a film continuous with a film roll carried out from a winding unit to a termination processing unit, and winds the starting end of the film formed by the cutting onto a core transferred to the winding unit In automatic winding device,
To the core of the core supply unit, a fastening tape sticking means for sticking the fastening tape across the longitudinal direction of the outer surface of the core in a state where the adhesive surface is exposed outward,
A core transfer means for transferring the core with the fastening tape from the core supply unit to the winding unit in a state where the film roll that has been wound up is unloaded and vacated.
A cutting means for cutting the film in a tension state continuously to the film roll after the winding is carried out from the winding unit, on the downstream side of the winding unit,
A pulling means for pulling the film on the upstream side of the winding unit in the direction opposite to the feeding direction and returning the starting end of the film formed by the cutting of the cutting unit to the winding unit;
The starting end portion of the film that is pulled back to the winding portion by the pulling means corresponds to the fastening tape of the core that rotates in the direction opposite to the winding direction when the film is pulled back, and the starting end portion of the film is the fastening tape. An automatic winding device for a film winder, wherein the film is wound from the fastening tape in a non-extending state in the film feeding direction so that the film is wound around the core. The affixing tape affixing means includes a rotating means for aligning and rotating the core in advance in the core supply unit so that the starting end of the film and the affixing tape correspond to each other in the winding unit after the affixing tape is affixed. The automatic winding apparatus of the film winder of Claim 1 provided.

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