JP6422534B2 - Bag sealer - Google Patents

Description

  The present invention relates to a bag sealer. More specifically, a frame in which a pair of base materials are separated and fixed is provided, a guide cut for moving the object to be bound from the upper part to the lower part is provided in the base material, and a plurality of pieces are provided between the pair of base materials. A tape guide having teeth and guiding the tape along the tooth tip of each tooth and receiving the object to be bound between each tooth and moving the object to be bound downward along the guide cut by rotation; A tape presser that holds the tape between the peripheral part of the tape guide and the presser part by having a curved presser part along the tape guide peripheral part and being biased by an elastic body; A cutter that swings by moving the bound object downward to cut the tape and returns by being urged by an elastic body, and a tip below the tape press when the cutter swings. It relates bag sealer and a tape receiving returning by being urged by the elastic body with by dynamic receive the tape during cutting by the cutter.

  Conventionally, as a bag sealer as described above, for example, the one described in Patent Document 1 is known and has a configuration shown in FIG. In the case of the figure, if the tape is thin, there is no problem in use, but if a thick kraft tape or the like is used, the frictional resistance of the tape increases, and a stronger force is required for the bundling work. As a result, workability is reduced, and a strong force is required, so there is a risk that the tape may be laterally displaced and the work may be hindered.

JP 2006-169104 A

  In view of the conventional situation, an object of the present invention is to provide a bag sealer with good workability regardless of the type of tape to be used.

  In order to achieve the above object, the bag sealer according to the present invention is characterized in that a frame in which a pair of base materials are separated and fixed is provided, and a guide notch for moving the object to be bound to the base material from the top to the bottom. And providing a plurality of teeth between the pair of base materials, guiding the tape along the tooth tip of each tooth, and receiving a binding object between the teeth and rotating along the guide notch by rotation. A tape guide that moves the object to be bound downward, and a curved pressing portion that follows the tape guide peripheral portion, and is urged by an elastic body to thereby provide a space between the tape guide peripheral portion and the pressing portion. A tape presser that presses the tape with, a cutter that is swung by the downward movement of the object to be bound by the guide cut and cuts the tape and is returned by being biased by an elastic body, and The tape guide teeth of the tape guide, comprising: a tape receiver that swings downward at the lower end of the tape retainer during movement, receives the tape when cut by the cutter, and returns by being biased by an elastic body And the valley between the teeth is gradually narrowed, and the object to be bound is moved to the tape pressing side from the beginning of the binding with the rotation of the tape guide. A pair of scissors is provided at the tooth tip of the tooth with respect to the rotation axis direction of the tape guide, the pressing portion is disposed between the scissors, and the cutter contacts the tip of the scissors with the tape. It is in passing between the tooth tips of each tooth.

  In the conventional bag sealer of FIG. 10, although each tooth 21 ′ of the tape guide 20 ′ becomes thicker as it goes downward, the tooth thickness decreases in the middle and the tooth 21 ′ is constricted, and the valley 22 ′ is gentle. Don't get too shallow. Therefore, the inserted object 100 is guided by the constriction of the tooth 21 ', falls to the bottom of the valley 22', and moves as indicated by arrows R1 ', R2', R3 '. As a result, the lowering action point becomes closer to the rotating shaft 5 ′, and the rotational moment is reduced, so that a large force is required. Moreover, the increase in resistance of the kraft tape with respect to the tape return direction D1b was added, and it was considered that the workability was lowered.

  In the present invention shown in FIG. 9, the teeth of the tape guide 20 are widened and the valleys between the teeth 21 are gradually narrowed, and the object to be bound 100 is started from the beginning of binding as the tape guide 20 rotates. Was moved to the tape press 31 side. As a result, the object to be bound 100 moves as indicated by arrows R1, R2, and R3, and a large rotational moment can be obtained. Therefore, work with a smaller force is possible, and workability is improved.

  In addition, a pair of ridges are provided at the tooth tips of the teeth so as to be separated from each other with respect to the rotation axis direction of the tape guide, and the pressing portion is disposed between the ridges. According to the same feature, the tape guide is prone to lateral displacement of the tape with the above-mentioned force, thereby preventing the tape from being entangled due to lateral displacement of the tape and improving workability in this respect.

  Further, the cutter passes between the heel tip of the heel and the tooth tip of each tooth that the tape contacts. As a result, the occurrence of trouble is more effectively suppressed by moving the tape cutting position and the delivery position to the tape receiver upward with a scissors to prevent lateral displacement.

  In addition, the pressing portion passes between the heel tip of the heel and the tooth tip of each tooth with which the tape contacts, the cutter tip of the cutter is sharp, and the cutter tip passes through the tip of the tape receiver. You may provide the notch part which accept | permits. According to this configuration, the cutting position of the cutter is moved upward to reduce the amount of tape used, while preventing interference with the tape receiver, and more reliable cutting of the tape is realized.

  By the way, as shown in FIG. 7, the said tape is pinched | interposed between the 1st tape press 31 and the tape guide 20, and especially a strong pressure acts on both corner | angular parts 31x. As a result, the adhesive material of the tape is peeled off by a strong pressure at the corner portion 31x, and is accumulated on the corner portion 31x of the first tape presser 31, which hinders the work.

  Therefore, the pressing portion passes between the heel tip of the heel and the tooth tip of each tooth in contact with the tape, and the corner portion along the longitudinal direction of the tape in contact with the tape guide among the pressing portion. It is good to chamfer. Moreover, it is the same even if a recessed part is provided in the part which touches the corner | angular part along the longitudinal direction of the said tape of the said press part among the said tape guides.

  Kraft tape can be used as the tape.

  According to the characteristics of the bag sealer according to the present invention, a bag sealer with good workability can be provided regardless of the type of tape used.

  Other objects, configurations, and effects of the present invention will become apparent from the following embodiments of the present invention.

1 is a perspective view of a bag sealer according to the present invention. It is a front view of FIG. It is a front view at the time of a to-be-bundled thing insertion. It is a front view which shows the state which moved the to-be-bound object a little downward from FIG. It is a front view which shows the state which moved the to-be-bound object a little downward from FIG. It is a front view which shows the state which moved the to-be-bound object a little downward from FIG. It is a disassembled perspective view of main parts. It is a bottom view which shows the relationship between a cutter unit and a tape receiver. It is a front view at the beginning of insertion of the object to be bound showing the operation principle. It is a front view at the time of the binding object insertion initial stage which shows the operation principle of the conventional back sealer. It is a perspective view of the 1st tape press in a 2nd example. It is sectional drawing of the 2nd Example which shows the contact part of a tape guide and a 1st tape press. It is sectional drawing of the 3rd Example which shows the contact part of a tape guide and a 1st tape press. It is sectional drawing of the 4th Example which shows the contact part of a tape guide and a 1st tape press.

Next, the present invention will be described in more detail with reference to the attached FIGS.
The bag sealer 1 according to the present invention is provided with a frame 2 in which a pair of base materials 3 and 4 are separated and fixed. It is fixed by a set screw 6 so as to be swingable or fixed so as to be rotatable, and is biased by a kind of coil spring 8 which is an elastic body. The pair of base materials 3 and 4 are provided with guide cuts 12 for moving a binding object such as a bag from the upper part toward the lower part obliquely. In addition, the base material 3 of the front is comprised with the transparent or semi-transparent synthetic resin, each member behavior and clogging of a tape can be confirmed visually, and those repair work and the exchange work of the cutter 41 are also easy.

  A reel notch 13 is provided at the right corner between the substrates 3 and 4, and the craft tape 110 is rotatably held on the reel 9. Further, the tape guide 20 and the tape presser 30 are supported across the previous guide notch 12, and the previous tape 110 is sandwiched between them. Note that the tape (craft tape) 110 has a posture in which the adhesive surface 110a is on the top and the non-adhesive surface 110b is on the bottom. The craft tape 110 is fed in a tape feed direction D1a perpendicular to the rotation axis direction D2 of the tape guide.

  A knife unit 10 having a knife 11 is provided on the left side of the frame 2. Used to cut off the excess mouth of the bag after sealing.

  The tape guide 20 has a plurality of teeth 21, guides the tape along the outer periphery 24 at the front end of each tooth 21, and receives the object 100 to be bound in the valley 22 between the teeth 21. Each tooth 21 is widened so that a valley 22 between each tooth 21 is gradually narrowed. A pair of flanges 23, 23 are provided at the tips of the teeth 21 so as to be spaced apart from each other in the rotational axis direction D2.

  On the other hand, the first tape presser 30 has a curved presser portion 31 along the tooth tip 24 around the tape guide 20 and presses the tape between the tooth tip 24 and the presser portion 31. By pulling the lever 32 with the coil spring 8 and biasing it counterclockwise, the pressing portion 31 is pressed against the tooth tip 24.

  In the cutter unit 40, the cutter 41 is fixed to the cutter holding portion 42 with a set screw 41 b, and is swingably supported by the rotating shaft 5. A part of the cutter holding portion 42 is pulled by the coil spring 8 and is urged clockwise, and is brought into contact with the regulating shaft 5a, thereby making the cutter 41 stationary at the holding position.

  The tape receiver 50 has a receiving portion 51 that receives the tape when cutting near the cutter 41 from the facing surface, and a stepped portion 52 thereon. By pulling the lever 53 with the coil spring 8 and urging it counterclockwise, the stepped portion is pressed against the lower end of the previous pressing portion 31.

  The second tape presser 60 presses the tape from the outer surface when the adhesive surfaces of the cut tape 110 are bonded together. The holding part 61 having the role is provided, and the lever 62 is pulled by the coil spring 8 so as to be biased clockwise for bonding. In addition, by pressing the pressing portion 61 against the lever 43 of the cutter unit 40, the pressing portion 61 is stopped at the holding position.

  Further, the relationship among the tape guide 20, the first tape press 30, the cutter unit 40, and the tape receiver 50 will be described in detail with reference to FIGS. The tape guide 20 has a pair of flanges 23, 23 at the tooth tip 24 of each tooth 21, and is configured such that a tape pressing portion 31 enters between these flanges 23, 23. Further, the distance between the pair of flanges 23 and 23 is slightly larger than that of the tape 110, and the lateral displacement of the tape 110 sandwiched between the tooth tip 24 and the pressing portion 31 is prevented by the flanges 23 and 23.

  The tip 41a of the cutter 41 has a sharp point, and the cutter 110 is moved as close as possible to the tape guide 20 so as to pass between the tooth tip 25 and the tooth tip 24 with which the tape 110 contacts. This prevents the tape 110 from being wasted. Similarly, the tape receiver 50 is configured so as to pass between the flange tip 25 and the tooth tip 24 with which the tape contacts, so that the lateral displacement of the tape 110 is suppressed by the flanges 23 and 23 at the highest possible position. 110 and the object to be bound 100 are received and can be guided downward.

  Further, in the tape receiver 50, a notch portion 54 that allows the cutter tip 41 a to pass is provided at the tip of the receiving portion 51. Thereby, while preventing interference with the cutter front-end | tip 41a and the receiving part 51, the cutting efficiency of a tape is improved by making the cutter front-end | tip 41a adjoin to the notch part 54. FIG.

Next, the behavior of the bag sealer 1 will be described with reference to FIGS.
First, the object to be bound 100 such as a bag is pressed against each tooth 21 of the tape guide 20 from the upper end of the guide notch 12, and the tape guide 20 is rotated counterclockwise, resulting in the state of FIG. When further moved downward, the object to be bound 100 reaches the vicinity of the receiving part 51 of the tape receiver 50, the rotation of the tape guide 20 is finished, and the object to be bound 100 is discharged downward.

  When these series of movements are indicated by arrows in FIG. 9, the behaviors are R1, R2, and R3. Each tooth 21 becomes wider toward the lower side, and the valleys 22 between the teeth gradually narrow. Therefore, the object to be bound 100 does not stay at the bottom of the valley 22, but moves outwardly as indicated by an arrow R2 from the beginning of insertion along each tooth 21 of the tape guide 20 that is inclined. As a result, the point of action of the force is further away from the rotary shaft 5 and the rotational moment is increased, so that the tape guide 20 can be easily rotated. In addition, when the thick kraft tape 110 is used for the tape 100 instead of a thin resin tape, the rotational resistance of the tape guide 20 is increased, but this problem is also solved by improving the rotational moment.

  Following the above, when the object 100 is further lowered as shown in FIG. 6, the object 100 around which the tape 110 is wound comes into contact with the lever 43, and by the lowering, the cutter unit 40 swings counterclockwise. Move to 40x. At this time, the receiving portion 51 of the tape receiver 50 and the cutter 41 intersect, the tape 110 is cut, and the operation is completed at positions such as 110x and 100x.

  In the experiment of the inventor, if the tape guide 20 has 6 teeth, the winding / discharging operation of the tape 110 by the rotation of 2 teeth coincides with the position where the next object to be bound 100 is received. To do. It was difficult to achieve such agreement with 5 sheets or less and 7 sheets or more.

  In the above embodiment, a paper craft tape is used as the tape 110. However, a resin tape in which an adhesive is provided on a resin substrate other than paper may be used. The present invention is beneficial when the tape thickness increases and the resistance increases.

  11 and 12 show another embodiment for eliminating the inconvenience of the corner portion 31x in FIG. Although the tape guide 20 may be integrally formed, in FIG. 7, it is divided and formed by the first divided body 20A and the second divided body 20B. In this embodiment, as shown in FIGS. 11 and 12, the pressure generated in the corner portion 31x of the first tape presser 30 is relaxed, and the adhesive material 110d is prevented from peeling off from the tape base material 110C at the corner portion 31x. The slopes 201 are respectively provided on both corners 31x to be chamfered. This chamfering may be provided over the entire length W2 of the pressing portion 31, but it may be provided only at the distal end side portion W1 of the pressing portion 31 or at a portion where inconvenience occurs due to pressure. Further, the chamfer may be provided as a curved surface 202 as shown in FIG.

  Moreover, as shown in FIG. 14, you may form the recessed part by providing the inclined surface 20x in the edge part of the tooth | gear tip 24 of the part corresponding to the corner | angular part 31x. Thereby, the pressure in corner part 31x can be relieved and it can prevent that adhesive material 110d peels from tape base material 110C by corner part 31x. For example, the slope 20x may be formed on both sides of the fourth divided body 20D, and the first divided body 20A and the third divided body 20C may be combined. The inclined surface 20x may be provided alone or together with the previously chamfered inclined surface 201, curved surface 202, and the like. However, considering the restriction on the width direction of the tape 100, the slope 201 and the like are excellent. In addition, it is desirable to provide chamfering and a recessed part in the corner | angular part 31x of both sides, However, You may provide in only the corner | angular part 31x one side where peeling of the adhesive material 110d is remarkable.

  The present invention can be used as a bag sealer for binding a mouth portion of a bag or the like. It may be used for binding objects to be bound other than bags.

1: bag sealer, 2: frame, 3, 4: pair of base materials, 5: rotating shaft, 5a: regulating shaft, 5b: connecting shaft, 6: set screw, 7: locking shaft, 8: coil spring (elasticity Body), 9: tape reel, 10: knife unit, 11: knife, 12: guide cut, 13: reel cut, 20: tape guide, 20A: first divided body, 20B: second divided body, 20C: third Divided body, 20D: fourth divided body, 20x: slope (concave), 21: teeth (plural teeth, each tooth), 22: valley, 23: ridge, 24: tooth tip, 25: tooth tip, 30: first One tape press, 31: press part, 31x: corner part, 32: lever, 40: cutter unit, 41: cutter, 41a: cutter tip, 41b: set screw, 42: cutter holding part, 43: lever, 50: tape Receiving part 51: receiving part 52: step part 3: Lever, 54: Notch, 60: Second tape presser, 61: Presser part, 62: Lever, 100: Binding object (bag), 110: Tape (craft tape), 110a: Adhesive surface, 110b: Non-adhesive surface, 110C: Tape base material, 110d: Adhesive material, 201: Slope (chamfering), 202: Curved surface (chamfering), D1a: Tape feeding direction, D1b: Tape return direction, D2: Tape guide rotation axis direction

Claims (5)

A frame in which a pair of base materials are separated and fixed is provided, a guide cut for moving the object to be bound is provided on the base material from the top to the bottom, and a plurality of teeth are provided between the pair of base materials. A tape guide that guides the teeth along the tooth tips of each tooth, receives the object to be bound between the teeth, and moves the object to be moved downward along the guide notch by rotation, and the tape guide circumference A tape presser that presses the tape between the peripheral part of the tape guide and the presser part by having a curved presser part along the part and being biased by an elastic body, and below the object to be bound by the guide cut A cutter that swings by moving to a position that cuts the tape and returns by being biased by an elastic body, and a tip that swings downward below the tape presser when the cutter swings, A bag sealer and a tape receiving returning by being urged by an elastic member with receiving the tape during cutting by coater,
The tape guide teeth are widened and the valleys between the teeth are gradually narrowed, and the object to be bound is moved to the tape pressing side from the beginning of binding as the tape guide rotates. And
A pair of ridges are provided at the tooth tips of each tooth with respect to the rotation axis direction of the tape guide, and the pressing portion is disposed between the ridges,
A bag sealer in which the cutter passes between the heel tip of the heel and the tooth tip of each tooth with which the tape contacts. The pressing portion passes between the heel tip of the heel and the tooth tip of each tooth that contacts the tape, the cutter tip of the cutter is sharp, and the tip of the tape receiver is allowed to pass the cutter tip. The bag sealer according to claim 1, wherein a notch portion is provided. The pressing portion passes between the heel end of the heel and the tooth tip of each tooth in contact with the tape, and chamfers the corner portion along the longitudinal direction of the tape in contact with the tape guide of the pressing portion. The bag sealer according to claim 1 or 2. The bag sealer according to any one of claims 1 to 3, wherein a concave portion is provided in a portion of the tape guide that is in contact with a corner portion of the pressing portion along the longitudinal direction of the tape. The bag sealer according to any one of claims 1 to 4, wherein the tape is a craft tape.

Images