JP5323549B2 - Adhesive tape terminal processing method and processing apparatus therefor - Google Patents

Description

  The present invention relates to a terminal treatment method for an adhesive tape that makes it easy to peel off an adhesive tape that has been once pasted when sealing the lid of a container, sealing a bag mouth, or binding loose articles using the adhesive tape. In particular, the present invention relates to an adhesive tape terminal processing method and a processing apparatus in which an adherend is applicable to industrial products used for molding plastic lenses.

  In general, the structure of a pressure-sensitive adhesive tape having one surface as an adhesive surface is a tape body (base material) made of synthetic resin having a predetermined width and a pressure-sensitive adhesive is coated on one surface. Here, when the pressure-sensitive adhesive tape is appropriately wound around the adherend, the winding end is not clear due to the thin ground structure, and therefore tape peeling performed later is not easy. That is, the adhesive tape cut at a desired position appears as a glue surface in the entire lower surface (width), and therefore the tape edge step when directly bonded to the lower tape surface or the adherend is minimal, and the adhesive tape It takes time and effort to remove the tape.

  In particular, a so-called plastic bag is often used as a simple packaging material recently, and an adhesive tape is wound as a sealing member of a bag body. For example, in general stores, supermarkets, various stores, etc., a plastic bag is used for product packaging, and an adhesive tape is wrapped around the bag seal. It is an aspect in which an adhesive tape is directly wound as a long material binding material. In any case, when unwinding the adhesive tape, it is time consuming and troublesome to find the tape winding end because the tape itself is thin as described above.

  Moreover, as a tape cutting mechanism in the currently known adhesive tape attaching device, the blade body of the tape cutter is faced in the vicinity of the object to be delivered, and the adhesive tape is simply cut by moving the blade body. Yes, no terminal treatment is applied to the cut tape end. For this reason, when the adhesive tape is peeled off even if the adhesive tape is automatically attached to the adherend with the conventional device, the tape is easily wound when the entire bottom surface of the tape terminal is glued and tightly attached to the lower tape surface, etc. Not. The problem of this tape peeling work becomes a problem regardless of whether the adherend is a daily product or an industrial product.

  For example, as shown in FIG. 14 and FIG. 15, an adhesive tape is wound around the outer periphery of two mother molds with a predetermined interval between a pair of sheets in a plastic lens molding process where the adherend is an industrial product. The adhesive tape must be peeled off once, for example, when the lens material (raw material) is filled into the material filling gap after forming a so-called mold assembly, or when the finished lens is taken out. That is, in the actual set of two mother molds, both molds a are erected by temporary holding using a known mold holder (not shown), and in this state, the adhesive tape b is placed on the outer periphery of both molds a. Is a winding mold assembly. Thereafter, when the plastic material d is filled into the intermediate material filling gap c, the tape terminal portion b ′ of the adhesive tape b is slightly peeled off to make a filling port. Since the adhesive surface is in close contact with the lower tape surface and the boundary between the tape terminal portions is not clear, it is not easy to turn the tape end. Of course, when taking out the hardened lens body from both molds, it is difficult to remove the tape, and it takes more time than necessary, which affects the workability of the entire plastic lens molding.

  In addition, in the conventional adhesive tape sticking device, the end of the adhesive tape to be cut is mechanically bent, and the tape terminal is used for the purpose of studying the tab formation that makes it easy to remove the tape. Therefore, it is necessary to incorporate a complicated bending mechanism in order to bend, and there is a problem in terms of space, the size of the apparatus must be increased, and initial costs are increased. Therefore, existing equipment for forming plastic lenses does not have a bending mechanism for the end of the adhesive tape that is wound around the master mold, and the tape is wound and peeled off from the mold by hand. Is bad. Therefore, there is a demand for a simplified tape terminal processing method and apparatus that facilitate the tape peeling operation.

  In the plastic lens molding process, in the mold assembly of a pair of mother molds that obtain a material filling gap for filling the plastic lens material, an adhesive tape is mechanically wound around the outer periphery of both molds. As an adhesive tape sticking means to be attached, for example, a matrix mold tape sticking device for plastic lens molding disclosed in Japanese Patent Application Laid-Open No. 2005-238538 previously proposed by the present applicant is known.

JP 2005-238538 A

  However, in the known master mold tape sticking apparatus, an adhesive tape having a certain width is wound around the outer peripheral surface of a pair of master molds, and the adhesive surface is wound down and cut at a predetermined position. As a mechanism, it is a simple cutter device that simply performs with a blade that goes up and down to the cutting position, so the cut tape end is simply cut off, and the entire area of the lower surface of the tape becomes the glue surface, so the mold surface and lower It is difficult to determine the tape boundary of the tape terminal portion wound around the tape surface, and the tape is not easily peeled off. That is, it takes time to remove the tape wound around both molds, delaying the filling work of the plastic material, the taking-out work of the lens body after the predetermined molding, and the like.

  However, in a conventional device, when a predetermined air blow is applied to the lower part of the tape when a predetermined tape is cut, it is focused on obtaining an appropriate curve at the cut tape end portion, and a tape that obtains a desired tab through repeated experiments. A terminal processing method and its processing apparatus were completed.

  That is, in view of the above circumstances, the present invention is such that at least a tape cutter in a predetermined position and an air blow nozzle that blows up the end of the adhesive tape are opposed to each other, the tape terminal portion is bent by air blow pressure, and the air blow An object of the present invention is to provide a terminal processing method and a processing apparatus for an adhesive tape that solves the above-mentioned problems by forcing a terminal tab to be folded in two by pressing against the upper tab backup plate in a blow-up transition. .

  In the terminal treatment method of the pressure-sensitive adhesive tape according to the first aspect of the present invention, in the terminal treatment of the pressure-sensitive adhesive tape, the pressure-sensitive adhesive tape is mechanically wound around an appropriate material to be adhered, and the tape end portion of the wound tape is easily peeled off. The air that cuts the tape end of the adhesive tape where the lower surface of the tape to be fed is glued to the bottom of the tape with an air blow that blows diagonally onto the lower surface of the tape, and receives the air that is unfolded on the lower surface. The glue surfaces are bent inward with the negative pressure generated due to the blow, and then the bent tape end is further installed in the vicinity of the adherend facing upward by the air blow. The back-up plate is forcibly pressed and folded in half, and a terminal tab for peeling is formed with the inner surface bonded by this half-fold.

  In this case, the adherend is a matrix mold for molding a pair of parallel plastic lenses, and an adhesive tape is wound around the outer periphery of both molds.

  The pressure-sensitive adhesive tape sticking apparatus of the second invention is an apparatus for carrying out the method of the first invention, and in the pressure-sensitive adhesive tape sticking apparatus for winding the pressure-sensitive adhesive tape around the adherend, the lower surface of the tape to be fed out is appropriately glued. A tape cutter is provided at the upper part of the cut position of the adhesive tape on the surface, and an air blow nozzle is arranged obliquely upward at a lower position through the adhesive tape facing the tape cutter, and the blow blow position of the air blow nozzle is A backup plate that presses the tape terminal part that is blown and bent is attached near the adherend that faces the upper part across the adhesive tape above, and the tape terminal part that has been cut off by air blow is the same. The adhesive surfaces are bent inwardly by drawing in the negative pressure caused by the air blow flow, and the bent tape end is further bent by the air blow. A clamshell pressed against the serial backup plate is for a terminal tab for peeling the clamshell tape terminal portion.

  In this case, the object to be bonded is a mold mold for molding a pair of plastic lenses, a cylindrical mold holder for fitting both disc-shaped molds from both sides to form a material filling gap in the middle, and the mold holder in the middle of the fuselage. And a pair of adsorbing units with adsorbers for adsorbing both molds exposed in the mold holder frame to both sides of the machine body on the central axis of the mold holder set on the receiving roller body. Is slidable, removes the predetermined mold holder, and extends the adhesive tape from the tape reel placed at the top to the end of the movable arm at the side of both molds standing at the receiving roller body position. Adhesive tape affixing to a mold mold for plastic lens molding, in which a tape feeding device is provided and a tape cutter is provided at the end of the movable arm In the apparatus, the tape cutter provided at the cut position of the adhesive tape fed to the end of the movable arm of the tape feeding device, and the air blow nozzle disposed obliquely upward facing the tape cutter below the machine body, A tape end portion that is cut in a floating manner by air blow, with a structure including an inclinable backup plate that is located above the adhesive tape above the blow blow-up position of the air blow nozzle and is attached in the vicinity of both molds. The adhesive tapes are bent inward with a negative pressure due to the air blow, and the bent tape end portion is further pressed against the backup plate by the air blow, and the tape is folded in half. The terminal part is a terminal tab for peeling.

  Further, the air blow nozzle was a flat nozzle in which a large number of blow holes had a width equivalent to the tape width.

  Thus, in the tape terminal processing method which makes it easy to peel off the tape terminal part of the adhesive tape wound around the adherend, the tape terminal part of the adhesive tape whose adhesive tape bottom surface is appropriately glued is applied obliquely from below at the time of cutting. Cut with the air blow that blows up and loosen, and the tape end (free end) where the spread is released generates negative pressure on the lower surface of the tape with the same air blow pressure, and pulls downward to make the glue surfaces The tape end is bent inward, the tape end is further moved upward under the same air blow pressure, and forcibly pressed against the backup plate placed at the top. A waisted terminal tab is formed. Therefore, the tape is peeled off simply by pulling the terminal tab. In this case, the backup plate can be mounted at any angle, and if the bent tape terminal that rises with the air blow pressure is displaced due to a difference in tape member or blow pressure, the backup plate can be reliably received by the backup plate. To. Since this terminal processing method is basically a method for forming a tape curve using air blow pressure, it is not necessary to provide a complicated bending mechanism in the apparatus. Therefore, if the adherend is a daily necessities or industrial products, a wide range of adhesive tape terminal tabs can be easily obtained.

  Here, in a specific terminal processing apparatus that performs terminal processing of an adhesive tape, a tape cutter provided with a downward blade portion disposed at a cut position of the adhesive tape fed to an adherend, and an adhesive tape facing the cutter A simple configuration in which an air blow nozzle that is disposed obliquely upward below and an angle-adjustable backup plate that is attached in the vicinity of an adherend with an adhesive tape above the blow-up position of the air blow nozzle It can be incorporated into a conventional device. At the time of cutting, the tape end part is floated and smoothly cut by the air blow pressure received from below, and the tape end part that has been unfolded causes negative pressure on the bottom surface of the tape due to the flow of the air blow. Because of the pulling force, the glue surfaces are bent inward, and the bent tape terminal portion is further moved upward by the air blow pressure and forcedly pressed against the backup plate to be folded in half. By this two-folding process, a peel-off stripping terminal tab whose inner surface is bonded is formed.

  In this case, the same applies to the terminal treatment of an industrial product in which the adherend is a mother mold for molding a pair of plastic lenses, and a mold is assembled in which an adhesive tape is wound around the outer periphery of the mold. However, both molds are set in advance with a known mold holder with a predetermined material filling interval in between and placed on the receiving roller body in the middle of the machine body, and both exposed molds are placed on both sides of the mold holder. Adhesive tape that is sucked and supported by the movement of a pair of suction units arranged on both sides of the machine body and wound up from the adhesive tape feeding device arranged in the lateral direction is wound around the outer periphery of both molds after predetermined mold removal. wear. At this time, at the cutting position, the tape end portion is cut by floating with the air blow pressure received from below, and the cut tape end portion is bent due to the negative pressure drawing on the lower surface due to the air blow flow. The tape terminal portion that has been blown and bent is further moved upward by the same air blow pressure, pressed against the backup plate and folded in half, thereby forming a peeling terminal tab having an inner surface adhered thereto.

  That is, the terminal processing device for winding the adhesive tape around both molds may be a simple mechanism with an air blow nozzle. Even in the conventional device, the air blow nozzle is placed below the tape cutter and the blow blow up of the nozzle. This is possible if there is a gap in which the tab backup plate can be incorporated. Also, the terminal tab that is folded in half with the blow-curved and bent tape terminal part becomes a protruding tab with a waist, so it can be used only for filling the lens material, taking out the lens body after a predetermined process, etc. Simply pull the tab to remove the tape. In addition, the air blow nozzle has a flat nozzle body with at least a tape width and a large number of blow holes arranged. Is possible.

  As described above, in the terminal processing method and terminal processing apparatus of the pressure-sensitive adhesive tape of the present invention, the tape terminal processing method is mainly based on a predetermined air blow pressure, and the tape terminal portion is floated by air blow. In order to forcibly press the bent tape terminal part against the back-up plate by the air blow, and the bent tape terminal part is bent by pulling in the negative pressure generated on the lower surface due to the air blow. In a continuous motion, it is folded in half to obtain a quick and reliable terminal tab. In other words, the tape terminal portion can be folded in two efficiently with the air blow pressure, so that it can be folded without any malfunction without using a folding mechanism, resulting in a desired tape terminal processing. Note that the air blow pressure can be appropriately changed by adjusting a valve or the like, and can be applied even if the adhesive tape member is changed.

  If this adhesive tape terminal treatment method uses an adhesive tape that feeds the glue surface downward, a folded tab can be formed on the tape terminal portion that has been cut reliably. In addition, since the tab is a protruding type in which the tape end portion is folded in half, the tape can be removed without difficulty by simply pulling the tab. Accordingly, the object to be adhered can be applied not only to daily necessities such as a housing and a bag, but also to various industrial products.

  In addition, in the adhesive tape sticking device, it is only necessary to incorporate a three-point mechanism of a predetermined tape cutter, an air blow nozzle arranged below it, and a backup plate arranged above the blow-up position of the nozzle. A simple tape terminal processing apparatus. Of course, if a gap that can be incorporated into the three-point mechanism is interposed in the conventional apparatus, it is possible to easily include a tab-forming terminal processing apparatus. In this case, the basic operation is to cut the adhesive tape by lifting it with air blow pressure, generating negative pressure on the lower surface of the tape with the air blow pressure and bending it, and forcing the bent tape against the backup plate. And since it is made by a continuous operation of folding it in half, it is possible to form a reliable terminal tab. In addition, if the mounting angle of the backup plate can be adjusted with angle adjustment means, it is possible to cope with any rising displacement of the tape terminal caused by differences in tape material or blow pressure, etc. Get a tab.

  In particular, even if the adhesive tape sticking device is an industrial product in which an adhesive tape is wound around a mold mold for plastic lens molding, if the device has the above-described configuration, a tab is formed at the tape terminal portion that is automatically wound, and the tape Peeling is also easy. Therefore, when peeling the adhesive tape wound around both molds, which is a problem with conventional devices, such as filling materials and taking out the lens body, simply pull the terminal tab folded in half, which improves the efficiency of peeling. Connected.

It is explanatory drawing which shows the principal part of the Example in the terminal processing method of the adhesive tape of this invention. It is explanatory drawing of the state by which the tape was cut and the free end was formed in the terminal part. It is explanatory drawing of the state which receives a negative pressure on the lower surface of the cut tape terminal part, and becomes a curved shape. It is explanatory drawing of the state pressed on a backup board by the upward transition of the tape terminal part bent together. It is explanatory drawing of the state in which a terminal tab is formed in the tape terminal part by which the same curve was carried out. It is explanatory drawing of the air blow nozzle. It is explanatory drawing by which the adhesive tape was wound around the to-be-adhered thing (matrix mold), and the terminal tab for peeling was formed in the tape terminal part. It is a front view which shows the terminal processing apparatus of the adhesive tape for plastic lens shaping | molding which uses the terminal processing method of an adhesive tape. It is a side view which shows the principal part. It is explanatory drawing of the state which the tape cutter part moves, adjoins to an adhesive tape, and cuts. It is explanatory drawing which shows the relationship between both said adsorption | suction units, an air blow nozzle, and a receiving roller body. It is sectional drawing of the cylindrical mold holder which sets a mold. It is explanatory drawing which shows the principal part of a cylindrical mold holder. It is sectional drawing which shows the principal part of an adsorption | suction unit. It is explanatory drawing which shows the transmission mechanism of the rotation trunk | drum of the adsorption | suction unit. It is explanatory drawing of the state which wound the adhesive tape around the outer periphery of a pair of conventional disk shaped mold. It is explanatory drawing which shows the terminal shape of the adhesive tape wound around the mold.

  Hereinafter, the terminal treatment method and apparatus for an adhesive tape according to the present invention will be described with reference to the drawings of Examples.

  1 to 5 show an embodiment which is a schematic device for explaining a terminal processing method of an adhesive tape. Reference numeral 1 denotes an adhesive tape having a lower surface 1a that is appropriately fed to the adherend 2 as an adhesive surface 1b. A tape cutter 4 having a blade portion 3 that operates only at the time of cutting is disposed above the cut position of the adhesive tape 1. In addition, the air blow nozzle 6 is disposed obliquely upward toward the cut tape terminal portion at the opposite position via the adhesive tape 1 below the tape cutter 4. Also, an appropriately inclined tab forming backup plate 7 is provided in the vicinity of the adherend 2 facing the upper part separating the adhesive tape 1 above the blow-up of the air blow nozzle 6, and the tab is attached to the adhesive tape terminal as a whole. The terminal processing device 8 to be formed is configured. Reference numeral 9 denotes a pass roll for guiding the adhesive tape 1 disposed on the front side of the tape cut position, and reference numeral 10 denotes an air adjusting valve connected to the air blow nozzle 6.

  Next, this operation will be described. The adhesive tape 1 guided from an appropriate tape feeding device (not shown) is spread on the adherend 2 side through the lower part of the tape cutter 4 with the tape lower surface 1a as the adhesive surface 1b. Let them out. Here, the air blow nozzle 6 below the tape cutter 4 is provided obliquely upward and has a large number of blow holes 5 so that air blow (blow pressure e) can be blown toward the lower surface of the adhesive tape in front of the cut position. The portion 1 'is loosened and slightly lifted to come into contact with the blade portion 3 of the tape cutter 4 to make a smooth tape cut, and the lower surface of the cut tape end portion 1' is further caused by air blow pressure. A negative pressure f is generated, and this negative pressure becomes a downward pulling force g to bend the tape terminal portion 1 ′, resulting in a bent tape terminal portion 1 A (see FIGS. 2 and 3).

  Thus, the blow-deformed and bent tape terminal portion 1A is further subjected to an air blow pressure to shift upward, and is forcedly pressed against the backup plate 7 in the vicinity of the upper object to be bonded, and the adhesive surfaces on the lower surface of the tape are bonded to each other. The terminal tab 11 is folded in half (see FIG. 4). Note that the backup plate 7 can be tilted appropriately by tilting means (not shown), and when the upward transition of the tape terminal portion 1A is shifted due to a difference in tape thickness or blow pressure, the tilt of the backup plate 7 is appropriately changed. In this way, the bent tape terminal portion 1A that rises is received, and it is possible to perform reliable folding.

  Moreover, the air blow from the air blow nozzle 6 does not need to be continuous, and it is possible to air blow intermittently.

  FIG. 7 to FIG. 14 show an embodiment in which the adhesive tape terminal processing method is used for an end processing apparatus for winding an adhesive tape around a mother mold for molding a plastic lens for glasses. 2 is a known cylindrical mold holder in which the mold molds 13 and 13 are fitted on both sides and appropriately engaged, and a material filling gap 14 is provided between the molds. The mold holder 12 is disposed at the center of the machine body 2. It is placed on the receiving roller body 16 of the individual roller set. Reference numerals 17 and 17 denote suction units with a pair of suction bodies 18 disposed on both sides of the machine body on the central axis of the mold holder 12 on the receiving roller body 16, and at least one of the suction units 17 is placed on the lower side. A movable suction unit 17 ′ that slides in the longitudinal direction by driving of the mounted electric slider 19 is used. Reference numeral 20 denotes a tape feeding device disposed on one side of the mold holder 12 placed on the receiving roller body 16, and the tape feeding device 20 has a tape reel 21 mounted on one side of the guide substrate portion 20a standing on the body base portion. In addition, several pass rolls 9 are appropriately interposed in the intermediate part, and a feeding roll part 22 is disposed in the lower front part, and a presser brush part that functions as a backup plate that can be tilted upward in front of the feeding roll part 22 23, and is supported by a traveling base portion 24 projecting laterally from the guide substrate portion 20a at an upper portion of the feeding roll portion 22 in front of the pressing brush portion 23 and perpendicular to the adhesive tape. A known ultrasonic tape cutter 25 that slides is disposed, and the upper portion of the adhesive tape 1 that guides the tape cutter 25 to the feeding roll unit 22 is orthogonalized. It is configured to Pukatto. Note that a pressing plate made of silicon rubber can be used as a backup plate in place of the pressing brush 23 described above.

  26A is a flat air blow nozzle having a plurality of blow holes 5 arranged below the cutting position of the tape cutter 25 and opposed to the lower part of the machine body. The tape end portion cut by the blow blow of the air blow nozzle 26A. 1 'is appropriately moved upward and pressed into the presser brush portion 23, which is the backup plate, and folded in half so as to form a double-folded terminal tab on the tape terminal portion. doing.

  In order to explain the operation in this case, as a mold assembly of a pair of disk-shaped mother molds 13 and 13 for molding a plastic lens, first, both molds 13 are manually operated on the outer peripheral cylindrical portion of the predetermined mold holder 12. If both guide holes 31 formed on both side surfaces of the guide 28 are guided to the receiving step portion 31a of the core barrel portion 31, they are attached to the outer peripheral cylindrical portion 28 as the holder body by the insertion pressure of the mold 13. The tip portions of the support claws 30 with several springs are pushed outwards against the spring pressure, so that the mold outer periphery is held and locked. At this time, the middle of both molds 13 is widened by the width of the core body 31 to form the material filling gap 14. In this way, the mold holder 12 in which both molds 13 are set is placed upright on the receiving roller body 16 in the middle of the machine body.

  Here, among the suction units 17, 17 waiting on both sides of the machine body, a movable suction unit 17 ′ that is largely retracted in advance is caused to travel along the guide rail 32 by driving of the electric slider 19, and is projected at the center of the tip. If the adsorbing body 18 and the adsorbing body 18 projecting from the opposing adsorbing unit 17 on the fixed side are respectively guided to both fitting hole portions 29 of the mold holder 12, they are brought into contact with the surfaces of both molds 13 set inside, respectively. The suction body 20 is sucked and supported by the operation, and the centering and supporting shafts 34 projecting from the rotating body 33 of the suction unit 17 at the periphery of both molds are pressed and centered by the spring 35. Get fixed. The suction unit 17 on the fixed side is actually configured to be a reversible buffer type with a buffer spring 36 attached to the back, and is configured to receive the moving pressure of the movable suction unit 17 '. In short, the surfaces of both molds 13 exposed on both sides of the mold holder 12 are fixed by the adsorbing bodies 18 of the both adsorbing units 17 that enter from both sides, and several centering and supporting shafts 34.

  The mold holder 12 is removed from the mold while both molds are supported by the suction unit. That is, as shown in FIGS. 12 (A) and 12 (B), the mold holder 12 supported by the two suction units 17 is appropriately protruded from the outer peripheral cylindrical portion 28 and the core barrel portion 31 as the mold body. If several knobs 37 for operation are picked, and the other knob 37 is rotated in the circumferential direction with reference to the knob 37 on the core drum 31 side, the support claws 30 on the core drum 31 side are selected. Moves against the spring pressure, and a part of the support claw 30 is retracted from the diameter of the fitting hole 29, so that the so-called chuck mechanism is released and the mold can be released. In this state, the mold holder 12 is still positioned on the receiving roller body 16 and cannot be completely removed. Therefore, after that, if the movable suction unit 17 ′ of the both suction units 17 supporting and supporting both molds 13 is moved back by at least the width of the mold holder, both molds 13 are moved to the left and right suction units 17 and 17 side. It will be transferred to the actual holder removal. Both molds 13 from which the mold holder 12 has been removed return to an installation state having a desired material filling gap 14 in the middle when both suction units 17 and 17 are returned to a predetermined set position. Of course, both molds 13 here have a small diameter corresponding to the frame thickness of the mold holder 12 and are not in contact with the receiving roller body 16, so that they are in the middle of the rollers of the receiving roller body 16 and are always lowered. The roller 38 is raised by the operation of the cylinder 39 and is brought into contact with and supported by the bottom surfaces of both molds 13.

  Thereafter, the tape feeding device 20 positioned in the lateral direction of the machine body, which is the side of both molds 13, is operated, and the adhesive tape 1 set on the upper tape reel 21 is fed by the rotation of the feeding roller portion 22 at the lower end. It leads to the outer peripheral surface of the mold 13 located in front.

  Here, if the rotary drum 33 of the pair of suction units is appropriately rotated by driving a pulse motor 40 disposed on the side, the adsorbent 18 and the support shaft 34 integral with the rotary drum 33 are rotated. The mother mold 13 supported by the adsorbent and the support shaft rotates, and the adhesive tape 1 guided to the outer periphery thereof is appropriately wound to form a so-called mold assembly. In this case, when the adhesive tape 1 is wound around the molds 13, the tape is first cut off, and the rotation of the rotary body 33 is stopped, and the tape feeding device 20 side appropriately drives the ultrasonic tape cutter 25 (see FIG. (Not shown), and the traveling base 24 is moved laterally, and the operating tape 25 projecting downward from the lower end of the tape cutter 25 is moved across the adhesive tape 1, and the ultrasonic tape cutter 25 and The entire area of the tape feeding roll section 22 side is rotated forward with the pedestal section 42 as a fulcrum by the operation of the vertical cylinder 41 mounted on the rear section of the guide board section 22a. The actuator 25a is brought close to the adhesive tape 1 and ultrasonically cut (see FIG. 9).

  At the time of this tape cutting, as shown in FIG. 1 to FIG. 4, it is cut in a state where the expansion is slightly relaxed by receiving the air blow pressure injected from the air blow nozzle 6 disposed below the lower surface of the tape terminal portion 1 ′, A negative pressure f is generated on the lower surface of the tape terminal portion 1 ′ due to the blow pressure e, and a pulling force g acts on the terminal portion to bend the tape terminal portion 1 ′, and the bent tape terminal portion. 1A further receives the same air blow and moves upward, and is pressed against the presser brush portion 23 serving as a backup plate 7 disposed in front of the upper portion, and the inner surfaces are bonded to each other to be folded in two to form the terminal tab 11. For this reason, when removing the tape such as providing a material filling hole in both molds 13 once wound with tape, the tape is peeled off as appropriate by picking and pulling the terminal tab 11.

  The adherend to which the adhesive tape is attached is not limited to the disk-shaped mother mold described as an example, but binding of electric cords and the like, sealing of the bag mouth, sealing of the periphery of the casing and the lid portion of an appropriate shape Can also be used.

DESCRIPTION OF SYMBOLS 1 Adhesive tape 1a Tape lower surface 1A Curved tape terminal part 2 To-be-adhered thing 4 Tape cutter 5 Blow hole 6 Air blow nozzle 7 Backup board 11 Terminal tab 12 Mold holder 13 Master mold 16 Roller body 17, 17 'Adsorption unit 18 Adsorbent 20 Tape feeding device 21 Tape reel 23 Presser brush part 25 Ultrasonic tape cutter 26 Air blow nozzle e Air blow f Negative pressure g Retraction force

Claims (5)

  Adhesive tape is mechanically wound around an appropriate adherend, and the adhesive tape is cut off with the adhesive tape on the bottom of the tape that is fed to the adherend in the end treatment of the adhesive tape that makes it easy to peel off the wound tape end. The tape end part at the position is cut in a floating manner by air blow that blows diagonally on the lower surface of the tape, and the adhesive surfaces are pulled together by drawing in the negative pressure generated by the air blow that receives the tape end part that has been unfolded on the lower surface. Folded inward, and then folded the folded tape end against the back-up plate in the vicinity of the object to be bonded by the upward movement of the air blow. A terminal processing method for an adhesive tape, comprising forming a terminal tab for peeling.   The adhesive tape terminal treatment method according to claim 1, wherein the adherend is a pair of parallel molds for molding plastic lenses, and the adhesive tape is wound around the outer periphery of both molds.   In the adhesive tape adhering device for winding the adhesive tape around the object to be adhered, a tape cutter is provided at the upper part of the adhesive tape cut position with the lower surface of the tape to be fed out as an adhesive surface, and the adhesive tape is opposed to the tape cutter. A backup plate in which an air blow nozzle is arranged at a lower position, and a blow-deformed and bent tape terminal portion is pressed in the vicinity of an adherend facing the upper portion above the blow-up position of the air blow nozzle. The tape end part that was cut in the air blow by the air blow was bent inward with the negative pressure drawn due to the air blow flow, and the bent tape end part was bent in the air blow. It is characterized in that it is pressed against the backup plate in the upward transition and is folded in two, and the terminal of the folded tape is used as a terminal tab for peeling. Adhesive tape sticking device for adhesive tape of the terminal apparatus.   The object to be adhered is a mold mold for molding a pair of plastic lenses, a cylindrical mold holder in which both disk-shaped molds are fitted from both sides to form a material filling gap in the middle, and the mold holder is mounted in the middle of the machine body. A suction roller unit with a pair of suction bodies for sucking both molds exposed in the mold holder frame is slid on both sides of the machine body on the central axis of the mold holder set on the receiving roller body. A tape that is movably arranged and extends and feeds the adhesive tape from the tape reel placed on the upper side to the lower arm end on the lower side of both molds that stand up at the receiving roller body position after removing the predetermined mold holder. An adhesive tape sticking device for a plastic lens molding master mold in which a feeding device is provided and a tape cutter is provided at the end of the movable arm A tape cutter provided at a cut position of the adhesive tape fed to the end of the movable arm of the tape feeding device, an air blow nozzle disposed obliquely upward facing the tape cutter and facing the tape cutter, A tape terminal portion that is cut in a floating manner by air blow, with a configuration including an inclinable backup plate that is mounted on the upper part of the air blow nozzle above the blow-up position with the adhesive tape in the vicinity of both molds, The adhesive surfaces are bent inward by drawing in the negative pressure due to the air blow pressure, and the bent tape end is forcedly pressed against the backup plate by the rising transition due to the air blow pressure, and folded in half. The terminal processing apparatus of the adhesive tape for adhesive tape sticking apparatuses of Claim 3 which made the tape terminal part the terminal tab for peeling.   5. The terminal processing apparatus for an adhesive tape for an adhesive tape sticking apparatus according to claim 3, wherein the air blow nozzle is a flat nozzle having a number of blow holes having a width equivalent to the tape width.

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