JPH07115415B2 - Sheet manufacturing equipment with adhesive tape - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Purpose of the Invention><Industrial field of application> The present invention relates to, for example, a sheet having a special specification in which an adhesive tape is joined along one edge of a long film sheet. The present invention relates to an apparatus for producing a sheet with an adhesive tape for folding an article in several stages in the longitudinal direction and winding the article into a roll.

<Background of the Invention> For example, a curing sheet is used to prevent paint from adhering or scattering when performing coating work at a construction site or the like. This product has an adhesive tape such as a cloth tape joined to one side edge of the sheet body made of plastic, and when it is supplied, the sheet body is folded into several sheets and further It is in a state of being wound into a roll with a length of 10 cm. By the way, at the actual work site, there is a demand for a more compact size in the longitudinal direction of the roll to be supplied, but in the folding process of the sheet body prior to winding, due to the sliding resistance of the sheet body, at most three folding is possible. It was only possible to do so, so there was a limit to folding the wide seat body to make it compact.

<Technical Items Attempted to Develop> The present invention has been made in view of such a background,
In order to obtain a more compact supply state, for example, an attempt was made to develop a new manufacturing apparatus for a sheet with an adhesive tape, which can supply a roll-shaped product having a dimension of about 10 cm in the axial direction.

<Structure of the Invention><Means for Achieving the Purpose> That is, the apparatus for producing a sheet with an adhesive tape according to the present invention is configured such that a sheet body formed by folding a tubular film in a plane shape and feeding the sheet is perpendicular to the feeding plane. A primary folding body that guides to a flat surface in a center-folded state, and a secondary folding body mainly including an inner folding blade and an outer folding blade that perform secondary folding by folding the sheet main body in three stages in a subsequent stage of the primary folding body. , A cutter that cuts apart a part of this sheet so that the sheet body made of a tubular film can be developed into a single sheet, and an adhesive tape is superimposed on the edge cut by this cutter, and integrally joined And a pressure-sensitive adhesive tape joining roll for allowing the above-mentioned object to be achieved.

<Example> An example of the present invention will be specifically described below with reference to the drawings. First, an apparatus 1 for manufacturing a sheet with an adhesive tape according to the present invention
Prior to the explanation of 1., the adhesive tape-attached sheet A which is the processing target of the present invention will be briefly described. This is a sheet main body S made of a synthetic resin film as shown in FIG.
On the other hand, the adhesive tape T is integrally joined along one longitudinal edge of the adhesive tape. For example, when the adhesive tape T is used for curing such as painting work, the adhesive tape T is used as a wall surface of an appropriate work site. Use by sticking to etc. The product is supplied as a product in which the sheet main body S side is folded into a stacked state of several layers and is rolled up as a whole. Then, in the adhesive tape attached sheet manufacturing apparatus 1, the sheet main body S is sequentially folded to have a desired roll width, and the adhesive tape T is further joined at the final stage. In the following description, the sheet main body S is deformed from the original roll shape to a state in which it is further folded into several layers, but since all are substantially the same member, they are all indicated by the symbol S. The apparatus 1 for manufacturing a sheet with an adhesive tape according to the present invention will be described below. This apparatus is configured by mounting various members described below on a machine frame 2 in which an angle member or the like is formed in an appropriate shape.
That is, functionally dividing each member functionally, a sheet supply section 3 is formed near one end of the machine frame 2, and further, a primary folding section 4 is provided in the subsequent stage, near the center of the machine frame 2, and further in the subsequent stage. A secondary folding part 5 is provided near the center of the upper part of the machine frame 2, and an adhesive tape joining part 6 is further provided at the other end of the upper part of the subsequent machine frame 2.
Further, a product winding section 7 is formed adjacent to the subsequent stage. These will be described in order below. First, the sheet supply unit 3 is mainly composed of the original roll support shaft 10, and a brake unit 11 is connected below the original roll support shaft 10 via a belt 12. ing. That is, the brake unit 11
Is to actuate an electromagnetic brake, and appropriately controls the rotation of the original fabric roll support shaft 10 when the original fabric is fed out to prevent overrun due to inertia, for example.
Reference numeral 13 is a guide roller on the feeding side of the sheet body S on the original roll. Next, the primary folding section 4 will be described. This is provided immediately after the sheet body S on the original roll is fed from the sheet feeding section 3 as shown in FIG. 2 and FIG. The disk-shaped primary folding body 15 that freely rotates is used as a main member. The primary folding body 15 is rotatably supported by a support arm 17 extending in the horizontal direction from the upper end of a support rod 16 which can be raised and lowered.
Is the upper and lower support rod brackets attached to the machine frame 2.
Supported by 18. Specifically, the support rod 16 has a screw shaft 19 screwed in below, and the screw shaft 19 is supported by a bearing 20 provided on a lower support rod bracket 18 to rotate and support. The rod outer cylinder portion 21 is moved up and down. And support rod outer cylinder
21 has a spline 22 on the outer peripheral portion, and this spline 22 is slidably fitted in a vertical direction with respect to a spline block 23 fixed to an upper support rod bracket 18, and at this portion of the primary folding body 15. The support position can be adjusted up and down. The transmission of the rotation to the screw shaft 19 causes the shift chain 24 to be wound around the lower end of the screw shaft 19, and the shift chain 24 is appropriately disposed so that the shifter shaft 25 is finally provided.
Leading to. Further, a secondary folding portion 5 is formed in the subsequent stage of the primary folding portion 4, and a pair of upper and lower pinch rollers 27 is provided immediately after the primary folding portion 4 between them, and the sheet body S that is primary folded is provided. A plurality of guide rollers 28 for guiding the above are arranged at appropriate places. Next, the secondary folding part 5 will be described. In this part, the primary folding sheet body S is further folded into three folds, and the base guide plate 30, the inner folding blade 31 and the outer folding blade 32 are the main members. To do. That is, the base guide plate 30 is a member formed of a metal plate or the like having a substantially equal width extending from the center above the machine frame 2 to the other end side, and the receiving side end of the seat body S is slightly upward. Curved and pick-up guide surface
Make up 30a. Further, the inner folding blade 31 and the outer folding blade 32 are provided so as to be pointed to each other so as to be oblique to the feeding direction of the sheet main body S, and are provided on the upper surface side of the inner folding blade 31. The folding blades 32 are formed so as to be stacked. Further, a folding rod 33 for guiding the sheet main body S to be supplied is attached to the support rod 35 supporting the base guide plate 30.
Incidentally, reference numeral 36 is a support rod of the inner folding blade 31, while,
Reference numeral 38 is a support rod for the outer folding blade 32. In addition, these base guide plate 30, inner folding blade 31, outer folding blade
Since the setting shapes of the 32, the folding-introducing rod 33, and the like play an important function for performing a smooth folding action, it is desirable that the setting position and the like be adjustable. The adhesive tape joining portion 6 is formed in the subsequent stage of the secondary folding portion 5. First, in this portion, as described above, the sheet main body S is supplied by using a raw material in which a tubular film is so-called gusset-folded and wound into a roll as a starting material, as shown in FIG. 9 (a). The thing
Since it is not constructed as a single sheet as a whole, a part of it is first cut and formed into a single sheet. That is, the action is the cutter 40 provided immediately after the secondary folding section 5.
The cutter 40 is attached to the cutter holder 41, and the sheet main body S is secondarily folded.
Is configured to act from above. In this case, since only one of the stacked sheet bodies S has to be torn, the sheet body S is inserted between the sheet guide S and the deployment guide plate 43 inserted from the front side in the traveling direction of the sheet body S.
It is constructed so that only one of the upper surfaces is separated from the other, and this is cut apart. Then, the unfolding guide plate 43 guides one end edge of the sheet main body S, which is cut at the side edge portion, so as to be turned over so as to project laterally from the folded portion. Immediately after this, an adhesive tape joining roll 45 for joining the adhesive tapes is provided. The adhesive tape joining roll 45 is composed of a tape guide roll 46 and a lower pressing roll 47, both ends of which rotations are transmitted by a gear 48 and rotate relatively in opposite directions. Is configured. Reference numeral 49 is a transmission gear that drives this gear 48. The adhesive tape T joined here is in the form of a roll, which is rotatably supported by the adhesive tape holder 50.
In this embodiment, two adhesive tape holders 50 are provided on the disk-shaped base plate 51 on the diameter line as an example, and the adhesive tape T is held at each position and the replacement work thereof is performed. Is designed to be more efficient. The roll-shaped pressure-sensitive adhesive tape T attached to the pressure-sensitive adhesive tape holder 50 is pulled out and wound around the tape guide roll 46 for about half a round, and then gripped between the tape guide roll 46 and the lower pressing roll 47. At this time, one end edge of the sheet body S cut by the cutter 40 faces this portion at this portion, and a part of the bonding surface of the adhesive tape T is pressure-bonded to the sheet body S. Since the tape guide roll 46 has a considerably different thickness between the adhesive tape T and the sheet main body S, the diameter of the tape guiding roll 46 at the portion for guiding the adhesive tape T so as to smoothly join the two is larger than that at other portions. To form a small diameter portion 46a. After the adhesive tape joining roll 45, a winding guide roll is further provided.
52 is provided, and the product winding section 7 is provided at the subsequent stage. That is, the product winding section 7 is substantially constituted by the winding device 54, which is a disk-shaped base plate 55 provided with a pair of winding shafts 56 as an example. 56 includes a driven gear 57, while each winding shaft 56 is configured so that when it is positioned above, the driven gear 57 meshes with a drive gear 58 provided on the machine frame 2 side to obtain a driven state. is doing. As shown in FIGS. 7 and 8, the winding shaft 56 has a concrete structure in which two circular rod-shaped sprags 61 are loosely fitted in the sprag space 60, one of which has a narrower width, and the other of which has a narrower width. During the rotation of the winding shaft 56 in the driving direction, the sprag 61 moves to further project from the outer periphery of the winding shaft 56 and bite in a wedge shape with respect to the winding core C fitted in the winding shaft 56 to fix them. Is configured. Next, the drive transmission mechanism for each of these members will be described. Reference numeral M is a drive motor, and an appropriate set of drive chains 64 is suspended from this output pulley, and one system drives the adhesive tape joining roll 45. The transmission gear 49 is driven oppositely and the other side drives the winding device 54. Incidentally, reference numeral 65 is a counter, which detects the processing length and displays it by an appropriate display device.

The apparatus 1 for manufacturing a sheet with an adhesive tape according to the present invention has the specific mechanism as described above, and operates as follows.

i) Processing preparation work In preparation for processing, first, by hand, the sheet main body S wound on the original roll is sequentially brought to the primary folding section 4, the secondary folding section 5, and the adhesive tape joining section 6. On the other hand, the adhesive tape T is attached to the adhesive tape holder 50,
One end of the tape guide roll 46 is unwound, and the upper surface of the tape guide roll 46 is wound and guided between the tape guide roll 46 and the lower pressing roll 47. By the way, since the initial manual work does not sufficiently fold in, for example, only the seat body S is fed out in that state, and as a result, as will be described later, it is folded into a steady state at each stage,
After confirming the state, the adhesive tape T is actually joined and the main processing is started again.

ii) Primary folding First, since the original roll supporting shaft 10 is provided in the longitudinal direction, the sheet main body S to be fed out is fed out with its surface oriented in the vertical direction.
As a result, the central portion is guided so as to be bent, and it is sandwiched between the pair of upper and lower pinch rollers 27 immediately after that, so-called double folding is performed. Of course, at this time, as defined as the embodiment of the present invention, by adjusting the position of the primary folding body 15, the width around the folding line becomes non-uniform, but the width after folding can be adjusted. Of course, the minimum width is half the width of the original roll. Therefore, when the width is wider than that, the primary folding body 15 may be set so as to shift the height of the original roll from the center to the upper or lower side.

[See FIGS. 3 and 9 (b)] iii) Secondary folding In secondary folding, the sheet main body S, which has already been primary folded and is guided on the sheet, is folded by a blade-shaped guide member. The center part of the three-fold structure moves along the lower surface of the base guide plate 30 as it is,
The portion protruding from both sides of 30 is guided by the inner folding blade 31 on one side thereof so as to be folded between itself and the base guide plate 30 while the reversing timing is regulated by the folding introduction rod 33. . Of course, at this time, the folding-in introducing rod 33 also performs an appropriate pressing action so that the sheet body S guided by the inner folding blade 31 is smoothly folded. Similarly, the outer folding blade 32 guides the edge portion of the sheet body S on the other side so as to be pressed from above, and is transported so as to be folded and folded between it and the inner folding blade 31. . In this state, the presence of the base guide plate 30 separates the central portion of the sheet main body S and the left and right end edges of the sheet main body S that are folded over the central portion, but the sheet is already transferred in a substantially three-fold state. Come on.

[See FIG. 4 and FIG. 9 (c)] iv) Slitting of the sheet main body S With respect to the sheet main body S sent in such a state, the portion folded up on the uppermost end surface has the upper end surface The expansion guide plate 43 is inserted between the second surface and the front side in the traveling direction to divide the two, and the cutter 40 is acted on the upper surface of the expansion guide plate 43 to cut open the one sheet main body S. Aim at. Then, one end edge of the cut-out sheet body S is guided by the unfolding guide plate 43 so as to be flipped over so as to protrude from the other overlapping portion to the side, and the tape guide roll constituting the adhesive tape joining roll 45. It is sandwiched between 46 and the lower press roll 47.

[Refer to FIG. 4 and FIG. 9 (d)] v) Joining of Adhesive Tape T The adhesive tape T which has already been wound around the tape guide roll 46 halfway, has its adhesive surface directed downward, The sheet main body S that overlaps the lower surface overlaps with one edge of the sheet main body S, and is sandwiched between the tape guide roll 46 and the lower pressing roll 47 to be fed out, thereby being pressure-bonded.
At this time, in the tape guide roll 46, the portion that receives the adhesive tape T is configured as the small diameter portion 46a, so that the difference in the thickness between the sheet body S and the adhesive tape T is absorbed here, and smooth joining can be achieved.

[Refer to FIG. 6 and FIG. 9 (d)] vi) Product winding The sheet body S and the adhesive tape T, which have been joined in this way, are wound up as a product, and when starting winding, they are adhered. The tape T is adhered to the winding core C, which is a paper tube fitted onto the winding shaft 56. Then, when the winding shaft 56 is driven, positive winding is performed by this, and after the winding for a predetermined length is completed, the product is taken up by the winding device 54.
Removed from. Of course, in this case, the winding shaft 56 performing the winding action positively drives the winding core C with respect to the winding shaft 56 only during the winding action by the overhanging action of the sprag 61 similar to a one-way clutch.

<< Effects of the Invention >> The present invention has the configuration as described above, and the primary folding is performed in another process prior to the three-folding process by the plate-shaped guide member to which the sliding resistance is most applied,
Further, the folding width of the sheet body S can be narrowed, and a more compact product can be provided as the final product. Then, as defined in the embodiment section of the present invention, in the primary folding, by adjusting the folding position, the primary folding width can be set in an appropriate range from the minimum half width of the original fabric, so that the product width Products with different roll sizes can be made to order.

[Brief description of drawings]

FIG. 1 is a perspective view showing an apparatus for manufacturing a sheet with an adhesive tape of the present invention, FIG. 2 is a side view of the same as above, and FIG.
FIG. 4 is an enlarged perspective view showing the primary folding part, FIG. 4 is an enlarged perspective view showing the secondary folding part, FIG. 5 is a plan view showing the same as above, and FIG. 6 is an enlarged perspective view showing the adhesive tape joining part. FIG. 7 is an enlarged perspective view showing a product winding portion, FIG. 8 is an enlarged perspective view showing a winding shaft and a longitudinal side view, and FIG. 9 is a stepwise manufacturing process of a sheet with an adhesive tape. FIG. 10 is a skeletal explanatory view, and FIG. 10 is a perspective view showing a sectional shape, a developed state and a used state of the adhesive tape-attached sheet. 1; Manufacturing device for sheet with adhesive tape 2; Machine frame 3; Sheet feeding unit 4; Primary folding unit 5; Secondary folding unit 6; Adhesive tape joining unit 7; Product winding unit 10; Original roll support shaft 11; Brake unit 12; Belt 13; Guide roller 15; Primary folding body 16; Support rod 17; Support arm 18; Support rod bracket 19; Screw shaft 20; Bearing 21; Support rod outer cylinder part 22; Spline 23; Spline block 24; Shift chain 25; shifter shaft 27; pinch roller 28; guide roller 30; base guide plate 30a; receiving guide surface 31; inner folding blade 32; outer folding blade 33; folding introducing rods 35, 36, 38; supporting rod 40; cutter 41; Cutter holder 43; Deployment guide plate 45; Adhesive tape joining roll 46; Tape guide roll 46a; Small diameter part 47; Lower press roll 48; Gear 49; Transmission gear 50; Adhesive tape holder 51; Base plate 52; Winding guide roll 54 Winding device 55; base plate 56; winding shaft 57; Ngiya 58; drive gear 60; sprag space 61; sprags 64; drive chain 65; counter A; pressure-sensitive tape sheet C; core M; drive motor S; seat body T; adhesive tape

Claims (2)

[Claims] 1. A primary folding body for guiding a sheet main body, which is formed by folding and feeding a tubular film in a plane shape, to a plane in a center-folded state so as to be orthogonal to the feeding plane, and a subsequent stage of the primary folding body. In the secondary folding part mainly composed of an inner folding blade and an outer folding blade for secondary folding by further folding the sheet body in three, and a sheet body made of a tubular film by cutting a part of the sheet With a pressure-sensitive adhesive tape, characterized by comprising a cutter capable of expanding into a sheet shape and a pressure-sensitive adhesive tape bonding roll for integrally bonding the pressure-sensitive adhesive tape on the edge portion cut by the cutter. Sheet manufacturing equipment. 2. The apparatus for manufacturing a sheet with an adhesive tape according to claim 1, wherein the primary folding body is capable of adjusting an action direction in a width direction of the sheet body.