JP4274325B2 - Tape applicator - Google Patents

Description

  The present invention relates to a tape applicator, and more particularly to a tape applicator capable of attaching a tape of a predetermined size to a work (object to be attached) with high accuracy when temporarily fixing or masking a substrate in an electronic device manufacturing process. .

  In the past, what has been developed as a tape applying device is intended to apply a sealing tape to a part of an opening or the like when an object to be attached is, for example, an envelope or a box. There were many things that were not required.

  In addition, as disclosed in the prior art of Patent Document 1, as a configuration of a conventional tape applicator, a tape in which an adhesive surface of a tape wound around a reel is attached to a release paper is used as a reel. A release agent layer is formed on the tape surface and the tape is wound directly, and the tape is wound directly on the take-up reel of the sticking device, and the tape is pulled out from the take-up reel to the adherend side. In addition, it is cut into a predetermined length immediately before being applied to the object to be attached, and is attached to a predetermined position of the object to be attached.

At this time, in the invention of Patent Document 1, an adhesive tape that does not use a release paper is wound around a roller having a large number of small holes formed on the peripheral surface, and each time the roller is rotated halfway, the adhesive surface is 180 ° on the peripheral surface. Cut into pieces of tape of a predetermined length at two slit positions in opposite positions, and transfer the piece of tape adsorbed on the roller peripheral surface to a predetermined position of the object to be attached that has been transferred to the vicinity of the roller. It is supposed to be.
See Japanese Patent Application Laid-Open No. 2000-296815.

  However, in the apparatus disclosed in Patent Document 1, the cut tape piece is half-turned while being attracted to the roller peripheral surface, and is aligned with the sticking position of the object to be stuck. Therefore, this alignment synchronization is performed between the rotation of the roller and the object to be moved on a straight line, and a roller having a diameter corresponding to the length of the tape piece to be applied or a predetermined slit position is provided. It is necessary to provide a roller. Further, in order to hold the cut tape piece on the roller peripheral surface, the roller peripheral surface must always be in a negative pressure state.

  Also, it does not support single-sided adhesive tapes with double-sided paper (separators), double-sided adhesive tapes, etc., and it is necessary to replace and modify equipment and parts according to changes in the width of adhesive tapes, etc. It is expected that the intended purpose cannot be achieved as a simple tape applicator. Accordingly, an object of the present invention is to provide a sticking device that can solve the above-mentioned problems, can cope with various tape types and widths, and can continuously and accurately apply a tape to the tape sticking position of an article to be stuck. It is to provide.

In order to achieve the above object, according to the present invention, a tape to be adhered to a predetermined position on the surface of the object to be adhered is continuously fed out from a supply reel along the transfer direction of the object to be adhered, and the lower release paper is In a state where a part of the peeled tape is affixed to the surface of the adherend, the adherend is moved, the tape is cut to a predetermined length, and the tape piece cut to the predetermined length is In the tape sticking device for sticking to the surface of an object to be attached, the tape is held by the tape delivery mechanism with the release paper on the object to be attached side peeled, and when the tape is delivered by the tape delivery mechanism. , Aligning the cut tape tip with the sticking roller tip of the tape delivery mechanism, and sticking the tape tip to a predetermined position of the object to be pasted transferred to the sticking position; Tape piece after being cut and is characterized in that so as to be attached is held in adsorption guide.

  The suction guide is formed with a groove-like portion capable of accommodating the tape on the suction surface, and the tape delivery mechanism moves backward after the tape delivery mechanism is positioned on the surface of the object to be pasted by the tape delivery mechanism. The tape piece is sucked into the groove portion of the suction surface, and the tape piece after the tape is cut is held in the groove portion to It is preferable to hold the position of application to the surface of the object to be applied.

  The tape is peeled off from the upper release paper, and the upper adhesive surface of the tape attached to the surface of the object to be pasted by a pressing roller positioned on the path where the upper release paper is guided to the release paper collecting means, It is preferable to press with the upper release paper interposed.

  The tape feed slider of the tape feed mechanism is preferably configured so that the feed amount can be set so that the cutting margin of the tape tip generated at the time of cutting the tape can be aligned with the tip application roller position.

  As described above, according to the present invention, it is possible to apply tapes of various dimensions to workpieces of various shapes as the objects to be pasted, continuously and accurately at their predetermined positions. Play.

  Hereinafter, as the best mode for carrying out the tape applicator of the present invention, the following embodiments will be described with reference to the accompanying drawings.

  FIG. 1 is a schematic front view showing the overall configuration of the tape applicator 1. In the present embodiment, as shown in the enlarged view (b) in the figure, as the double-sided tape, the adhesive layer 4 is formed on both surfaces of the tape substrate 3, and the release papers 5, 6 are formed on the respective adhesive layers 4. An example in which the tape 2 on which (separator) is laminated will be described. The configuration of the tape applicator 1 according to the present invention is broadly divided in terms of functions, and a tape supply means 10 for guiding the double-sided tape 2 to the adherend W, and a lower surface when the double-stick tape 2 is attached to the adherend W. The release paper 5 (hereinafter abbreviated as the lower separator 5) on the side (the workpiece W side) is peeled from the lower surface of the tape 2, and the lower separator 5 after peeling is wound around a predetermined take-up reel 21. The release paper 6 on the upper surface side of the tape 2 (hereinafter abbreviated as the upper separator 6) is peeled off from the upper surface of the tape 2 immediately before the tape 2 is applied to the object W and the lower separator collecting means 20 that is recovered in this way. At the same time, the upper separator 6 having tape tension applying means 34 for applying a predetermined tension to the tape 2 immediately before being applied via the upper separator 6 is taken up and collected by a predetermined take-up reel 36. The upper separator collecting means 30 and the cut A tape feed mechanism 55 that holds the tape tip 2a and the tape piece 2A after being cut and sends the tape tip 2a to the sticking position of the article W to be pasted, and the tape 2 stuck to the article W to be pasted The tape feeding / sticking means 50 is provided with a pressing roller 57 for reliably sticking to the object W. In this specification, the sticking material to be stuck to the sticking object W is referred to as “tape”, but it is a wide tape, and even if it is sheet-like in appearance, it is continuously wound. In this state, the lower separator 5 is peeled off when being applied to the object W to be adhered and adhered to a predetermined position on the surface of the object W, and used as a temporary fixing means for parts, for example, a liquid crystal surface It is needless to say that the material used for various uses such as a transparent resin cover for protecting the film, various functional films, and seals can be used, and the material of the base material, the type of the pressure-sensitive adhesive, etc. are not limited.

  Here, regarding the configuration of each of the above-described means, the tape 2 from the feeding of the tape 2 from the supply reel 11 to the step of sticking the tape piece 2A (FIG. 5) cut to a predetermined length to the object W is shown. Along with the work process, description will be made with reference to FIG. 1 showing the overall configuration and FIG. 2 showing the standby state of the sticking device 1. As shown in FIG. 1, a horizontal rotation shaft 11 a of the supply reel 11 is rotatably supported on the upper portion of the main body portion that is provided with the plate 7 upright. The supply reel 11 can be mounted and fixed with a reel having a width corresponding to the width of the tape 2 to be attached. The direction of the tape 2 fed out from the supply reel 11 is deflected by the two guide rolls 12 and 13, and the lower separator 5 is peeled from the lower surface of the tape 2 by the reverse roller 14. The lower separator 5 is collected by the lower separator take-up reel 21 as the lower separator collecting means 20 via the guide rollers 15 and 16. The take-up reel 21 of the lower separator 5 can be rotated at a predetermined rotational speed and rotational torque by a drive motor via a reduction gear (not shown) connected to a shaft end protruding from the back surface of the plate 7.

  On the other hand, when the upper separator 6 covering the upper surface side of the tape 2 is peeled off from the upper surface of the tape 2 immediately before the tape 2 is applied to the object W at the tip position of the tape delivery / applying means 50 described later, The separator 6 is in a state in which tension is applied by a predetermined elastic spring 37 or the like by a guide roller 31, a leading edge pressing roller 62, an upper separator reversing roller 32, a guide roller 33, and a dancer roller 34 as a tape tension applying unit. Inverted toward the adherend W side and further reversed by the presser foot roller 57, and at this time, the adhesive surface 4 of the tape 2 immediately after being affixed to the adherend W is pressed on the surface of the upper separator 6. Thus, it can be reliably attached to the article W. After that, it is wound around the upper separation reel 36 via the guide roller 35 and collected. The upper separator take-up reel 36 can also be rotated at a predetermined rotational speed and rotational torque by a drive motor through a speed reducer (not shown) connected to a shaft end protruding from the back surface of the plate 7. At this time, the upper separator take-up reel 36 is used by reversing the rotation direction of a single drive motor via a gear box or the like so as to rotate in synchronization with the take-up roll 21 of the lower separator 5. Can do.

  As shown in FIG. 1 (overall configuration front view) and FIG. 2 (standby state explanatory diagram), the tape feeding / pasting means 50 is located on the back side of the plate 7 (FIG. 1) and protrudes in the direction perpendicular to the paper surface when cutting. A tape delivery mechanism 55 that holds the tape tip 2a cut by a cutter 56 (FIG. 5) that cuts the tape 2 at a predetermined position and accurately feeds the tape tip 2a to a predetermined position of the object W to be positioned below. And the suction guide 40 that holds the cut tape piece 2A (FIG. 5), and the tape piece 2A that is held by the suction guide 40 are attached to the attachment position of the article W to be placed below. , And a pressing roller 57 that presses the surface.

  As shown in an enlarged view in FIG. 2, the tape feeding mechanism 55 includes a main body plate 58 that is inclined at a predetermined angle with respect to the advancing direction of the object W, and a front and rear direction along the main body plate 58. It comprises a moving tape feed slider 60. Three frames of a guide roller 31, a tip pressing roller 62, and an upper separator reversing roller 32 are rotatably supported on the frame 61 of the tape feeding slider 60, and guide rails (not shown) of the main body plate 58 are not shown. The frame 61 is slid along the head 2), and the feed amount of the tape 2 is controlled. A presser leaf spring 64 is attached to the lower end of the frame 61. The presser leaf spring 64 plays a role of pressing the tape tip 2 a from below to the lower surface of the tip presser roller 62 and holding the position of the tape tip 2 a immediately after being cut at a predetermined position of the tape feed mechanism 55.

  As will be described later with reference to FIGS. 3 to 5, the suction guide 40 can be adjusted in angle by rotating around a fulcrum 41 by an actuator 42 (FIGS. 3 and 4), and is not shown inside the head. A manifold having a plurality of pores 43 (FIG. 6) is formed. As shown in FIG. 5, the tape piece 2A after being cut is adsorbed by the operation of the vacuum pump P, and is driven by the presser roller 57. The tape piece 2A can be reliably and accurately applied to the article W.

Next, the tape sticking process to the to-be-sticked object W by the tape sticking apparatus 1 is demonstrated with reference to FIGS.
FIG. 2 shows a standby state in which the pre-process is completed and each operation member returns to the initial position. In this standby state, the lower side separator collecting means 20 and the drive motor (not shown) of the upper side separator collecting means 30 are stopped by the operation control unit (not shown). The pasting operation of the tape 2 is started in a state where the article W is transferred to a predetermined position by a transfer means (not shown) from the left side of the drawing in the direction of arrow A and reaches the predetermined position. The guide rollers 12 and 13 (FIG. 1) for guiding the double-sided tape 2 with the release papers 5 and 6 are covered with silicone rubber or the like so as not to slip when the tape is fed. Has come to occur. On the other hand, the pressure-sensitive adhesive surface of the tape 2 of the guide roller 31 that guides the tape tip 2a to the application position of the article W while the lower-side separator 5 and the upper-side separator 6 are peeled off and in contact with the adhesive layer of the tape 2 For example, a brass roller that is knurled on the peripheral surface is mounted on the peripheral surface of the abutting roller so that the adhesive does not adhere. In addition, various metal and resin rollers can be used as long as the material can prevent the feeding performance from being lowered by the adhesive.

The operation of the apparatus in the operation of attaching the tape to the article W from the standby state shown in FIG. 2 will be described with reference to FIGS.
FIG. 3 shows an initial stage of a process in which the object W is transferred to a predetermined position below the tape applicator 1 and the tape 2 is applied to the range indicated by the arrow below the surface of the object W. Yes. As shown in the figure, when the position sensor S detects that the adherend W has been conveyed to a predetermined position, the tip of the tape delivery slider 60 of the tape delivery mechanism 55 is moved by the operation of an actuator (not shown). It advances in the direction of arrow B between the tape application positions of the attachment W. At this time, the end 2a of the tape is accurately positioned at the tape application position while being held by the end presser roller 62 by the presser plate spring 64, and the end 2a of the tape is attached by the end presser roller 62. . At this time, as shown in FIG. 2, the tape leading end 2 a from which the cutting margin (about 15 mm) after cutting protrudes is the guide roller 31 in the tape feeding slider 60, the reversing roller 14, and the tip pressing roller 62. The tension of the tape 2 is adjusted, and the cutting margin is absorbed among the reversing roller 14, the guide roller 31, and the tip pressing roller 62, and the tape tip 2 a is placed at a predetermined position at the lower end of the tip pressing roller 62. Can be retained. For this reason, the tape tip 2a can be aligned with the object W to be adhered with high accuracy.

  After the alignment of the tape tip 2a, the frame 61 of the tape delivery slider 60 is retracted in the direction of arrow C by the operation of an actuator (not shown), and as a result, as shown in FIG. The actuator 42 rotates around the fulcrum 41 so as to be equal to the tape feeding angle so as to be in contact with the tape 2 so as to be along the angle. In this state, the vacuum pump P (FIG. 5) is operated to suck the tape 2. The suction force is set to such an extent that the tape 2 can slide on the suction surface without resistance in accordance with the sticking of the tape 2 to the sticking object W as the sticking object W moves in the direction of arrow A. Yes. At this time, the double-sided tape 2 is pressed against the roller surface 12 b by the brake pad 12 a of the tape brake 12 shown in FIG. 2, so that the tape 2 is not fed out from the supply reel 11.

  4 shows that when the object W is transferred in the direction of arrow A by a transfer means (not shown) from the state shown in FIG. Shows the state. In a state where the upper surface of the tape 2 is pressed by the pressing roller 57, the tape feeding slider 60 of the tape feeding mechanism 55 moves back to the initial position. At this time, the tape brake 12 (FIG. 1) is in a released state, and the tape 2 is fed out from the supply reel 11 in a state where a predetermined tension is applied according to the transfer of the adherend W.

  FIG. 5 shows a state in which the tape 2 has been applied to a predetermined position on the article W and has reached the vicinity of the rear end of the application position. As shown in the figure, in this state, the cutter 56 protrudes to the tape running position, the release paper (the lower separator 5 and the upper separator 6) of the tape 2 is peeled off, and both surfaces become adhesive surfaces. The tape 2 in a state is cut to a predetermined length, and then the cut tape piece 2A is pressed by the presser foot roller 57 accompanying the movement of the article W to be stuck while being sucked by the suction guide 40. Thereby, 2 A of tape pieces are reliably affixed on the surface of the to-be-bonded object W. As shown in FIG. At this time, the rear end of the cut tape piece 2A is securely held by the suction head 40, and the tape piece 2A is moved from the front end by being pressed against the article W by the pressing roller 57 at the front position. The part up to the rear end is reliably and accurately attached to the surface of the object W to be attached. Further, the upper separator 6 of the tape 2 is also peeled off, and the tape 2 is stuck in a state where the upper surface of the tape is an adhesive surface. Therefore, the peeled upper separator 6 is shown in FIGS. 4 and 5 so that the adhesive 3 of the tape 2 does not adhere to the peripheral surface of the presser foot roller 57 at the position of the front end presser roller 62 when pressed by the presser foot roller 57. As shown, in a state where a predetermined tension is applied via the dancer roller 34, the presser foot is passed again through the presser foot roller 57 and the upper separator 6 is interposed between the upper surface of the tape 2. The pressing by the roller 57 is performed.

  Thereafter, the suction head 40 returns to the upper initial position, and as shown in FIG. 2, the suction head 40 is in a standby state until the tip of the next object to be pasted W reaches the position detection sensor.

  As described above, the tape 2 to be stuck to the article W is fed out from the supply reel 11 in accordance with the length to be stuck. Since it is held at the position of the leading edge pressing roller 62, the sticking position of the tape leading edge 2a can be set with high accuracy. Further, by adjusting the stroke of the tape feeding slider 60 in accordance with the length of the cutting margin of the tape 2 when it is cut by the cutter 56, the tape tip 2a can be accurately adjusted to the position of the tip pressing roller 62. it can.

  6A and 6B schematically show a cross section of the suction head 40. A guide groove 45 having a width substantially equal to the tape width set in the tape applicator 1 is formed on the bottom surface of the suction head 40, and the round pores 43 extend vertically and horizontally over the entire tape width of the bottom surface of the guide groove. As shown in FIG. 5A, all the round pores 43 are drilled at a predetermined interval, and the bottoms of the round pores 43 are aggregated and communicated with the suction holes 44. The vacuum pump schematically shown in FIG. P or a vacuum generator (not shown) is connected. The presence / absence of the guide groove 45, the width when forming the groove, and the total length are preferably set as appropriate according to conditions such as the thickness, width, and length of the tape 2 to be attached to the article W. . By the suction force from the suction hole 44, the tape 2 is held so as to fit in the guide groove 45 as shown in FIG. Thereby, the directionality at the time of sticking of the tape 2 can be ensured with high accuracy.

  It is also preferable to embed a porous material on the adsorption surface of the guide groove 45 instead of the round pores positioned in the vertical and horizontal directions. As this porous resin plate, for example, an ultra-high molecular weight polyethylene porous film produced by producing and cutting a sintered porous molded body of high molecular weight polyethylene powder is suitable. This type of porous resin film has a porosity of about 20 to 30% due to pores (voids) having a pore diameter of 10 to 30 μm formed therein, and the processed surface has wear resistance and slidability. For this reason, when a negative pressure is applied from the continuous suction hole to the end portion of the porous resin plate, the negative suction pressure is applied to the porous resin plate in the guide groove 45 through the continuous pores, and the tape 2 is applied to the guide groove 45. Is adsorbed.

  The series of operations described above are performed by a control unit (not shown) with respect to the required specifications such as the size of the object W, the position where the tape 2 is applied, the tape application range, and the like. The timing at which the tape delivery slider 60 of the delivery mechanism 55 is delivered, the delivery amount thereof, the rotation angle of the suction guide 40, the rotation timing, and the operation of the tape brake 12 can be appropriately set. In addition, when the object to be pasted W has a special shape, or when there is not enough quantity to set a transfer line, the work of placing the object to be pasted W at the tape sticking position is performed using a positioning jig or the like. It is also possible to perform the pasting operation of the tape 2 with the present apparatus 1 by the manual operation of the worker.

  In the above-described embodiment, the mode in which the tape on which the release paper (the lower separator 5 and the upper separator 6) on both sides of the double-sided tape 2 has been peeled is attached to the article W is attached. According to the apparatus, in the double-sided tape 2, it is possible to apply the tape in various states, such as application with the upper separator 6 left, or application of a normal tape having an adhesive layer formed on only one side. Needless to say.

The schematic front view which showed the whole structure of the tape sticking apparatus of one Example of this invention. State explanatory drawing which showed the standby state of the tape sticking apparatus. State explanatory drawing which showed the positioning state of the tape sticking by a tape sticking apparatus. State explanatory drawing which showed the tape sticking state by a tape sticking apparatus. State explanatory drawing which showed the tape sticking state (after tape cutting) by a tape sticking apparatus. Sectional drawing which showed the internal structure of the adsorption | suction head.

Explanation of symbols

1 Tape Application Device 2 Tape 2A Tape Piece 5 Release Paper (Lower Sepa)
6 Release paper (upper separator)
DESCRIPTION OF SYMBOLS 10 Tape supply means 20 Lower-side separator collection means 30 Upper-side separator collection means 40 Adsorption guide 50 Tape delivery and sticking means 55 Tape delivery mechanism 60 Tape delivery slider 62 Tip pressing roller 64 Tip pressing spring

Claims (4)

A part of the tape from which the lower release paper has been peeled off is continuously pasted from the supply reel of the tape to be stuck at a predetermined position on the surface of the adherend along the transfer direction of the adherend. A tape sticking device for moving the sticking object while being stuck on the surface of the article, cutting the tape to a predetermined length, and sticking the tape piece cut to the predetermined length to the surface of the sticking object The tape has its tip held by a tape delivery mechanism in a state where the release paper on the adherend side has been peeled off, and when the tape is delivered by the tape delivery mechanism, the cut tape tip and the tape delivery aligns with the joining roller tip mechanism, the tape tip is stuck, the tape piece adsorption after being cut to length at a predetermined position of the object to be attached material that is transported to the attaching position Tape applying apparatus being characterized in that so as to be attached is held in id.   The suction guide is formed with a groove-like portion capable of accommodating the tape on the suction surface, and the tape delivery mechanism moves backward after the tape delivery mechanism is positioned on the surface of the object to be pasted by the tape delivery mechanism. The tape piece is attracted to the groove-like portion of the suction surface, and the tape piece obtained by cutting the tape is held in the groove-like portion, thereby the rear end portion of the tape piece. The tape sticking apparatus according to claim 1, wherein the sticking position of the sticking object on the surface of the sticking object is held.   The tape is peeled off from the upper release paper, and the upper adhesive surface of the tape attached to the surface of the object to be pasted by a pressing roller positioned on the path where the upper release paper is guided to the release paper collecting means, 2. The tape applicator according to claim 1, wherein pressing is performed with the upper release paper interposed.   The tape feed slider of the tape feed mechanism has a feed amount set so that a cutting margin of the tape tip generated at the time of cutting the tape can be aligned with the tip application roller position. Tape applicator.

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