JP4562099B2 - Grab allowance forming adhesive tape cutting device - Google Patents

Description

  The present invention relates to a pressure-sensitive adhesive tape cutting device that cuts and supplies a pressure-sensitive adhesive tape used for sealing an opening of a box or bag to a desired length, and in particular, a non-adhesive portion (grip allowance) at the tip of the pressure-sensitive adhesive tape. It is related with the grip allowance formation adhesive tape cutting device which forms.

Conventionally, as a device of this type, Japanese Patent Application Laid-Open No. 2003-146531 discloses a method for forming a non-adhesive portion (gripping allowance) by bending the tip portion of an adhesive tape and bonding the adhesive surfaces together, and this adhesive tape is desired. In a pressure-sensitive adhesive tape cutting device that cuts and supplies the tape, a tape supply mechanism for feeding out the pressure-sensitive adhesive tape, a transport mechanism for transporting the pressure-sensitive adhesive tape fed from the tape supply mechanism, and a tip portion of the pressure-sensitive adhesive tape that has been transported A bending mechanism that bends the adhesive surface inward, a bonding mechanism that bonds the tip of the bent adhesive tape and the adhesive surface of the subsequent adhesive tape, and the tip is bonded to form a non-adhesive part An adhesive tape cutting device provided with a cutter mechanism that cuts the applied adhesive tape is disclosed.
JP 2003-146531 A

  However, in the conventional adhesive tape cutting device, the conveyance mechanism that conveys the adhesive tape, the bending mechanism that bends the adhesive surface of the tip portion of the adhesive tape inward, and the bonding mechanism that bonds the adhesive surface of the adhesive tape are independent of each other. Therefore, the number of parts is large, and the entire apparatus is increased in size to accommodate those parts, resulting in an increase in manufacturing cost.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an easy-to-operate grip margin forming adhesive tape cutting device that solves the problems of conventional techniques, reduces the number of parts, reduces the size of the entire device, and is inexpensive to manufacture. .

In order to solve the above-mentioned problem, the gripping margin forming adhesive tape cutting device of the present invention bends the tip of the adhesive tape 5 to bond the adhesive surfaces together to form the gripping margin 15 and to fix the adhesive tape to a desired length. In the gripper forming adhesive tape cutting device 1 that cuts into the length, the tape reel 4 that feeds out the adhesive tape and the non-adhesive surface of the adhesive tape that is fed out from the tape reel are wound around to change the feeding direction of the adhesive tape. A winding roller 6, a first drive roller 7 disposed on the downstream side of the winding roller and in contact with the adhesive surface of the adhesive tape, and a downstream side of the tape cutting position on the downstream side of the first drive roller A second drive roller 8 that is in contact with the adhesive surface or gripping margin of the adhesive tape and is driven in conjunction with the first drive roller; and the tape A cutter guide rail 9 that is disposed at the cutting position and extends in the horizontal direction to abut against the adhesive surface of the adhesive tape when cutting the tape, and a position that abuts via the second drive roller and the non-adhesive surface or gripping margin of the adhesive tape. A tape feed roller 10 that is displaceable to a position where the first drive roller contacts the non-adhesive surface of the adhesive tape, and a cutter that contacts the cutter guide rail via the non-adhesive surface of the adhesive tape A guide roller 14 and a cutter 13 for cutting the adhesive tape by moving in the horizontal direction, and the tape feed roller is driven when the adhesive tape is unwound, and the second drive roller and the adhesive tape are non-adhesive. The first drive roller and the pressure-sensitive adhesive tape that are in contact with each other via a surface or a grip allowance and stopped when the pressure-sensitive adhesive tape is cut Abutting through the adhesive surface, and after cutting the tape, when the loop of the adhesive tape having the tip bonded to the cutter guide rail is formed, the first driving roller to be driven and the adhesive tape are in contact via the non-adhesive surface of the adhesive tape. After the loop of the adhesive tape is formed, the loop is crushed and the adhesive surfaces of the adhesive tape are bonded together by displacing from the contact position with the first drive roller to the contact position with the second drive roller. It is characterized by forming a grip allowance .

  The gripping margin forming adhesive tape cutting device according to the present invention is characterized in that the tape feeding roller is rotatably disposed at the other end of a rotating arm pivotally supported at one end.

  Moreover, the grip margin forming adhesive tape cutting device of the present invention is characterized in that the cutter is a circular cutter or a straight blade cutter that is driven to rotate.

While bending the tip of the adhesive tape to bond the adhesive surfaces together to form a grip margin, in a grip margin forming adhesive tape cutting device that cuts the adhesive tape to a desired length, a tape reel that feeds out the adhesive tape; A non-adhesive surface of the adhesive tape that is fed out from the tape reel is wound around, and a winding roller that changes the feeding direction of the adhesive tape and a downstream side of the winding roller are disposed on the adhesive surface of the adhesive tape. A first driving roller that is in contact with the first driving roller, disposed downstream of the first driving roller and downstream of the tape cutting position; abuts against an adhesive surface or a gripping margin of the adhesive tape and is driven in conjunction with the first driving roller; A second drive roller that is disposed at the tape cutting position and extends in a horizontal direction in contact with the adhesive surface of the adhesive tape when the tape is cut. A position where the second guide roller and the non-adhesive surface of the adhesive tape come into contact with each other via a non-adhesive surface or a gripping margin, and a position where the first drive roller comes into contact with the non-adhesive surface of the adhesive tape. A tape feed roller that is displaceable, a cutter guide roller that contacts the cutter guide rail via a non-adhesive surface of the adhesive tape, and a cutter that cuts the adhesive tape by moving in the horizontal direction. Thus, by providing the tape feeding roller with a plurality of functions, the number of parts can be reduced, the apparatus can be downsized, and the manufacturing cost can be reduced.
The tape feed roller can be easily displaced by the configuration in which the tape feed roller is rotatably arranged at the other end of the rotating arm pivotally supported at one end.
When the adhesive tape is fed, the tape feeding roller is in contact with the second driving roller to be driven via the non-adhesive surface of the adhesive tape, so that the second driving roller on the downstream side and the feeding roller are in contact with each other efficiently. Can be paid out.
When the adhesive tape is cut, the tape feeding roller is in contact with the first drive roller that has stopped driving through the non-adhesive surface of the adhesive tape, so that the tape feeding roller can stand by at a position that does not interfere with the adhesive tape cutting.
When the tape feeding roller is in contact with the first driving roller to be driven through the non-adhesive surface of the adhesive tape when the adhesive tape is looped after the tape is cut, the tip portion is bonded to the cutter guide rail. Therefore, it is possible to easily form a loop.
The tape feed roller is a gripping unit that, after forming a loop of adhesive tape, displaces from the contact position with the first drive roller to the contact position with the second drive roller to crush the loop and bond the adhesive surfaces of the adhesive tape together. Due to the structure for forming the margin, the grip margin can be formed by a simple operation.
With the configuration in which the cutter is a circular cutter or a straight blade cutter that is rotationally driven, the adhesive tape can be easily cut by horizontal movement.

  Embodiments of the present invention will be described with reference to the drawings. 1-8 is a figure which shows the operation | work process of the grip allowance formation adhesive tape cutter 1 of this invention in order.

  A gripping allowance forming adhesive tape cutting device 1 according to the present invention has a tape reel 4 fitted into a tape bobbin 3 rotatably supported by a case body 2. The adhesive tape 5 wound around the tape reel 4 is fed out with the adhesive surface on the lower side of the drawing.

  A winding roller 6 is rotatably supported on the downstream side of the arrangement position of the tape reel 4 of the case body 2. The winding roller 6 has a function of winding the non-adhesive surface of the adhesive tape 5 fed out from the tape reel 4 and changing the transport direction of the adhesive tape 5 fed out from the tape reel 4 to the horizontal direction.

  The first drive roller 7 is pivotally supported on the downstream side of the position where the winding roller 6 is disposed on the case body 2 and below the pivotal support position of the winding roller 6. The first drive roller 7 is rotationally driven via a drive means (not shown) such as a motor and a speed reduction mechanism (not shown). The first drive roller 7 has a function of feeding the adhesive tape 5 while coming into contact with the adhesive surface of the adhesive tape 5.

  The second drive roller 8 is pivotally supported downstream of the arrangement position of the first drive roller 7 of the case body 2 and downstream of the tape cutting position. The height of the shaft support position of the second drive roller 8 is the same as the height of the shaft support position of the first drive roller 7, and the adhesive tape 5 to be transported is disposed horizontally. The second driving roller 8 and the first driving roller 7 are driven by the same driving means, and are driven in conjunction so that driving, driving stop, and driving speed are the same.

  The cutter guide rail 9 is disposed at a tape cutting position upstream of the position where the second drive roller 8 is disposed in the case body 2. The cutter guide rail 9 is a member that extends horizontally in a direction orthogonal to the conveyance direction of the adhesive tape 5. The position in the height direction of the surface of the cutter guide rail 9 is a position slightly lower than the position in the height direction of the surfaces of the second drive roller 8 and the first drive roller 7 on which the adhesive tape 5 is conveyed. It arrange | positions so that it may not contact with the adhesive surface of the adhesive tape 5 at the time of conveyance. Therefore, it is possible to reduce the conveyance resistance when the tape is fed.

  FIGS. 13 (a), (b), and (c) show the cutter guide rail 9 having a circular, quadrangular, or octagonal cross-sectional shape, but other polygonal or elliptical shapes may also be used. good. The function of the cutter guide rail 9 will be described later.

  A tape feed roller 10 is rotatably supported on the other end of an L-shaped rotary arm 12 whose one end is pivotally supported by a pin 11 on the case body 2. The tape feed roller 10 is pivoted about the pin 11 of the pivot arm 12 so as to be in contact with the second drive roller 8 via the non-adhesive surface of the adhesive tape 5, the first drive roller 7 and the adhesive tape. 5 is displaceable to a position where it abuts via the non-adhesive surface. The rotating arm 12 is automatically rotated by power driving in association with driving of the second driving roller 8 and the first driving roller 7 and cutting driving by the cutter 13. Further, the tape feeding roller 10 needs to have a certain pressing force when the tape feeding roller 10 is brought into contact with the first driving roller 7 and the second driving roller 8 through the non-adhesive surface of the adhesive tape 5 and the tape is fed out. Therefore, the pressing force is secured by increasing the weight of the tape feed roller 10, or a spring (not shown) is disposed between the case body 2 and the rotating arm 12 to secure the pressing force.

  When the adhesive tape 5 shown in FIG. 1 is fed, the tape feed roller 10 is in a contact position between the driven second driving roller 8 and the non-adhesive surface of the adhesive tape 5. The pressure-sensitive adhesive tape 5 having the pressure-sensitive adhesive surface in contact with the second driving roller 8 that is rotationally driven is caused to generate a frictional force when the non-sticky surface is pressed against the tape feed roller 10 with a constant pressure. That is, the adhesive tape 5 is not fed out only by the second drive roller 8 being rotationally driven. The first drive roller 7 is also driven to rotate in conjunction with the second drive roller 8, but does not directly contact the tape feed roller 10, and therefore does not directly participate in the feeding of the adhesive tape 5. By rotating the roller 7, the friction with the adhesive surface of the adhesive tape 5 is reduced, and the feeding of the adhesive tape 5 is made smooth.

  FIG. 2 is a diagram showing a state in which the length of the adhesive tape 5 from the tape tip position to the tape cutting position has reached a predetermined value L. For setting the predetermined value L of the adhesive tape 5, a predetermined value is input to the apparatus in advance. The apparatus controls the elapsed time from the start of driving of the first drive roller 7 and the second drive roller 8 in a contact state of the tape feed roller 10 with the second drive roller 8 through the non-adhesive surface of the adhesive tape. Have means. When the adhesive tape 5 is fed out by a predetermined value L, the driving of the first drive roller 7 and the second drive roller 8 is stopped.

  FIG. 3 is a diagram showing a state in which the tape feed roller 10 is displaced to a contact position via the non-adhesive surface of the adhesive tape 5 to the first drive roller 7 whose driving is stopped before the tape cutting step. . Since the tape feed roller 10 can stand by at a position that does not interfere with the tape cutting during the tape cutting process, the degree of freedom of the arrangement space of the cutter can be increased. Also, the displacement of the tape feed roller 10 to the standby position is transmitted to the driving means for rotating the rotating arm 12 by a predetermined angle by inputting the driving stop signals of the first driving roller 7 and the second driving roller 8 to automatically To implement.

  FIG. 4 is a diagram illustrating a tape cutting process. The cutter 13 for cutting the adhesive tape 5 may be a circular cutter as shown in FIG. 9 or a straight blade cutter as shown in FIG. When the cutter 13 is a circular cutter, it is rotationally driven by a driving means. The cutter guide roller 14 is rotatably arranged regardless of whether the cutter 13 is a circular cutter or a straight blade cutter.

  The shape of the cutter guide roller 14 is a shape corresponding to the cross-sectional shape of the cutter guide rail 9, such as a circle, an octagon, or a quadrangle, as shown in FIGS. 13 (a), 13 (b), and 13 (c).

  When cutting the tape, the cutter 13 moves from the standby position to the cutting position. The movement of the cutter 13 from the standby position to the cutting position takes the space of the entire apparatus into consideration, and when the standby position is above the cutting position, the cutter 13 is moved to the height of the cutting position and the cutter guide roller 14 is moved to the cutter guide. While the adhesive tape 5 is brought into contact with the rail 9 via the non-adhesive surface of the adhesive tape 5, the adhesive tape 5 is pressed against the cutter guide rail 9 and moved horizontally to cut the adhesive tape 5. In other words, the adhesive tape 5 and the cutter guide rail 9 are not in contact with each other before cutting the tape, but when the tape is cut, the adhesive tape 5 is pressed against the cutter guide rail 9 by the contact of the cutter guide roller 14. It will be. When there is room in the horizontal space of the entire apparatus, the standby position of the cutter 13 may be an extension of the horizontal direction of the tape cutting position, and only the horizontal movement of the cutter 13 may be moved to the standby position and the cutting position. .

  FIG. 11 shows an embodiment in which two cutter guide rollers 14 are rotatably arranged on the cutter 13 to stabilize the cutter at the time of cutting the tape. 12A and 12B are views showing a state in which the cutter 13 and the cutter guide roller 14 are in contact with the cutter guide rail 9.

  FIG. 5 is a diagram illustrating a state where the cutting process of the adhesive tape 5 is finished, the cut adhesive tape 5 is taken out, and the cutter 13 is moved to the standby position. In this state, the front end portion of the adhesive tape 5 after cutting is in a state of being adhered to the cutter guide rail 9 because the adhesive surface is pressed against the cutter guide rail 9 by the cutter guide roller 14 in the tape cutting step. .

  FIG. 6 is a diagram illustrating a process of forming a loop at the tip of the pressure-sensitive adhesive tape 5 in order to form a grip margin at the tip of the pressure-sensitive adhesive tape 5. The tip of the adhesive tape 5 after the cutting process is bonded to the cutter guide rail 9. The tape feed roller 10 is in contact with the first drive roller 7 through the non-adhesive surface of the adhesive tape 5. In this state, the second drive roller 8 and the first drive roller 7 are driven. Since the first drive roller 7 in which the tape feed roller 10 is in contact with the adhesive tape 5 through the non-adhesive surface is driven, the adhesive tape 5 is fed out. However, since the tip of the adhesive tape 5 is bonded to the cutter guide rail 5, the adhesive tape 5 forms a loop corresponding to the tape feed amount.

  FIG. 7 is a diagram showing a state in which a predetermined length of tape has been fed out and a predetermined length of loop has been formed. In this state, the driving of the second driving roller 8 and the first driving roller 7 is stopped. The tape feed amount for loop formation is set in advance, and the drive time of the first drive roller 7 and the second drive roller 8 is controlled.

  FIG. 7 is a diagram showing a gripping margin forming step. In this step, the tape feed roller 10 in a state of being in contact with the first drive roller 7 through the non-adhesive surface of the adhesive tape 5 starts to rotate toward the contact position with the second drive roller 8. The tip of the adhesive tape 5 is bonded to the cutter guide rail 9 to form a loop with the first drive roller 7. The loop is crushed by the rotation of the tape feed roller 10 to the contact position with the second drive roller 8, and when the tape feed roller 10 reaches the contact position with the second drive roller 8, the adhesive surface of the adhesive tape 5. A gripping allowance 15 is formed by bonding them together. When the gripping margin 15 is formed, the second driving roller 8 and the first driving roller 7 are driven, and the adhesive tape 5 having a predetermined length L is fed out.

  The above-described steps are repeated, and the adhesive tape 5 cut to a predetermined length with the knob margin 15 formed at the tip is continuously provided.

  According to the present invention, the tape feeding roller has a plurality of functions including a tape feeding function, a loop forming function, and a gripping allowance forming function, thereby reducing the number of parts, reducing the size of the apparatus, and reducing the manufacturing cost. Therefore, it is possible to provide a grasping margin forming adhesive tape cutting device that is easy to operate and safe.

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Explanation of symbols

  1: gripping margin forming adhesive tape cutting device, 2: case body, 3: tape bobbin, 4: tape reel, 5: adhesive tape, 6: tension roller, 7: second driving roller, 8: first driving roller, 9 : Cutter guide rail, 10: Tape feed roller, 11: Pin, 12: Arm, 13: Cutter, 14: Cutter guide roller, 15: Grasp allowance

Claims (3)

In the gripping allowance forming adhesive tape cutting device (1) for bending the tip of the adhesive tape (5) and bonding the adhesive surfaces together to form a gripping allowance (15) and cutting the adhesive tape into a desired length,
A tape reel (4) for feeding out the adhesive tape;
A winding roller (6) for winding the non-adhesive surface of the adhesive tape fed from the tape reel and changing the feeding direction of the adhesive tape;
A first drive roller (7) disposed downstream of the winding roller and in contact with the adhesive surface of the adhesive tape;
A second drive roller (8) disposed downstream of the first drive roller and downstream of the tape cutting position, abutting against the adhesive surface or the gripping margin of the adhesive tape and driven in conjunction with the first drive roller (8) )When,
A cutter guide rail (9) disposed in the tape cutting position and extending in a horizontal direction in contact with the adhesive surface of the adhesive tape at the time of tape cutting;
Tape feed displaceable between a position where the second drive roller contacts the non-adhesive surface or gripping area of the adhesive tape and a position where the first drive roller contacts the non-adhesive surface of the adhesive tape A roller (10), a cutter guide roller (14) that contacts the cutter guide rail via a non-adhesive surface of the adhesive tape, and a cutter (13) that cuts the adhesive tape by moving in the horizontal direction. ,
The tape feeding roller is in contact with the second driving roller that is driven when the adhesive tape is unwound through a non-adhesive surface or a gripping margin of the adhesive tape, and the driving is stopped when the adhesive tape is cut. The first driving roller and the adhesive tape that are driven when a loop of the adhesive tape is brought into contact with the drive roller through the non-adhesive surface of the adhesive tape and the tip portion is bonded to the cutter guide rail after the tape is cut. The adhesive tape is contacted via a non-adhesive surface, and after forming the loop of the adhesive tape, the loop is crushed by displacing from the contact position with the first drive roller to the contact position with the second drive roller. A gripping allowance forming adhesive tape cutting device characterized in that adhesive surfaces of adhesive tape are bonded together to form a gripping allowance. 2. The gripping margin forming adhesive tape cutting device according to claim 1, wherein the tape feeding roller is rotatably disposed at the other end of a rotating arm pivotally supported at one end. The gripping margin forming adhesive tape cutting device according to claim 1 or 2 , wherein the cutter is a circular cutter or a straight blade cutter that is rotationally driven.

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