JPH05132052A - Bag sealer - Google Patents

Abstract

PURPOSE:To make unsealing easy, by providing a cut part-forming roller defining a cut part on an adhesive tape wound around the constricted part of the mouth of a bag in a bag sealer by which the mouth of a bag is bundled with an adhesive tape and sealed. CONSTITUTION:The constricted mouth 12 of a bag 11 is pushed into the pockets 10 of a winding roller 6 with an adhesive tape 5, as it is forced to cross against a guide way 3, to wind up the adhesive tape 5 on the mouth 12 to some extent, in a bag sealer 1. The end of adhesive tape 5 and other adhesive tape 5 at the superimposed side with a tail pulley 9 are sticked and bundled together by the claw 13 of a pusher 8 when the winding roller 6 is lowered while rotating when it is lowered further, the adhesive tape 5 is cut by a cutter 15 by pushing an actuator 14. In this case, a cut part-forming tool 4 is provided at the end of the guide way 3 and a cut part 16 is formed on the adhesive tape 5 by pressing the adhesive tape 5 wound at the mouth 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved bag sealer.

[0002]

2. Description of the Related Art A bag sealer is a device for sealing a mouth of a bag by binding it with an adhesive tape, and is widely used because it can be carried out easily, reliably and quickly. That is, the adhesive tape supplied from the tape reel can be automatically wound around the mouth portion only by passing through the guide passage with the mouth portion of the bag body squeezed.

[0003]

However, the bag body bound by the conventional bag sealer has a drawback that it is extremely difficult to remove the adhesive tape when opening the bag. That is, it is extremely difficult to separate the adhesive tape bound to the mouth portion of the bag body because the end portions of the adhesive tape are stuck to each other.

[0004]

Therefore, the present inventor has accomplished the present invention as a result of earnest research in view of the above problems, and is characterized in that the mouth portion of the bag body is narrowed. A winding roller having a circumferential surface partially projecting from the guide path and rotatably supported on one side of the groove-like guide path, and a position facing the wrap roller on the other side of the guide path. A pressing body that is provided and presses against the winding roller by being urged by a spring, and an opening of a bag body around which the adhesive tape guided to the winding roller by passing through the guide path is wound. Is to cut the adhesive tape wound around the narrowed portion of the bag body and connected to the tape reel. The guide path is interlocked with the operating portion. In a device consisting of a cutter projecting in the direction of In this portion, a cutting portion forming tool that forms a cutting portion on the adhesive tape wound around the narrowed portion of the mouth portion of the bag body is provided, or the narrowed portion of the mouth portion of the bag body is guided. A winding roller with a pocket, which is rotatably supported by a part of its peripheral surface projecting to one side of the groove-shaped guiding path, and provided on the other side of the guiding path at a position facing the winding roller. Of the bag body around which the pressing body that is pressed against the winding roller by being urged by the spring and the adhesive tape that is guided to the winding roller by passing through the guide path is wound. This is for cutting the operating part with which the squeezed part abuts and the adhesive tape wound around the squeezed part of the mouth part of the bag body and connected to the tape reel. In a device comprising a protruding cutter, inside the pocket of the winding roller, the mouth of the bag body is A cutting portion forming tool for forming a cutting portion is provided on an adhesive tape that can be pushed in at a bent portion, and further, on one side of a groove-shaped guiding passage for guiding a narrowed portion of the mouth portion of the bag body. A winding roller rotatably supported with a part of its circumferential surface protruding, and a pressing roller that is provided on the other side of the guide path at a position facing the winding roller and presses against the winding roller by urging with a spring. The pressing body to hit, the operating portion to which the squeezed portion of the mouth of the bag body around which the adhesive tape guided by the winding roller is wound by passing through the guide path abuts, and the mouth of the bag body A device for cutting the adhesive tape which is wound around a narrowed portion and is continuous with a tape reel and which comprises a cutter projecting to the guide path in conjunction with the operating part, adjacent to the operating part. On at least one side of the guideway, wrap around the narrowed portion of the mouth of the bag. A cutting part is formed on a rotating adhesive tape, and a cutting part forming roller provided with a plurality of cutting part forming tools is rotatably provided on the peripheral surface.

As used herein, the term "guide path" refers to a groove-shaped notch provided in the apparatus body of the present invention.
From the end of the guide path, the narrowed portion of the bag is passed so as to intersect, and the adhesive tape is bound to the narrowed portion. This guideway is generally provided in the vertical direction of the apparatus main body, and moves the narrowed mouth of the bag from top to bottom,
A guide path may be provided in the horizontal direction with the apparatus body lying down, and the mouth of the bag body may be moved laterally.

"Wrapping roller" means a roller for supporting an adhesive tape rotatably provided on one side of the guide path. A part of the peripheral surface of this winding roller projects into the guide path, and an adhesive tape whose adhesive surface is supported face up on the peripheral surface, and a narrowed portion of the mouth of the bag body to be bound, The wrapping roller is pasted while passing through the guide path and is attached. The shape of the winding roller is not particularly limited and may be a simple columnar shape. However, generally, a plurality of pockets are provided on the peripheral surface of the winding roller, and the narrowed mouth portion is fitted with the adhesive tape.

The "pressing member" is a member provided on the other side of the guide path at a position facing the winding roller and biased by a spring so as to press and contact the winding roller. By this pressing body, the adhesive tape is wound around the narrowed portion of the mouth of the bag body, and the end of the adhesive tape is wound and the side continuous with the tape reel and the adhesive surface are bonded to each other. Becomes

The term "cutter" refers to one in which an adhesive tape is wound around a narrowed portion of the mouth of a bag through a guide path and then the adhesive tape connected to a tape reel is cut. This cutter has a structure in which the adhesive tape is projected and cut, and automatically cuts the adhesive tape to a predetermined length while the opening around which the adhesive tape is wound passes through the guide path. The cutter is actuated by actuating the actuating part in which the mouth around which the adhesive tape is wound projects into the guide path. Therefore, the cutter may be of any structure as long as it projects in the guide path in conjunction with the operating portion, and may be integral with or separate from the operating portion.

The term "cutting portion" means that when a bag is opened on an adhesive tape which is wound or wound around a narrowed portion of the mouth of the bag, the wound adhesive tape is easily It is provided so that it can be cut. For example, there are perforations and notches. The cutting portion forming tool is for forming a cutting portion on an adhesive tape wound around a mouth portion or wound around the mouth portion, and has a needle-like shape for making a perforation or a V-shape for making a cut. For example, a cutter. This forming tool is provided at the abutting portion of the guide path through which the narrowed portion of the mouth portion of the bag body passes. That is, after the adhesive tape is wound around the mouth and cut by the cutter, the adhesive tape wound around the mouth abuts to form a cut portion on the adhesive tape.

Further, the cutting portion forming tool may be provided inside a pocket provided in plural on the peripheral surface of the winding roller. This is such that when the adhesive tape supported by the winding roller is pushed into the inside of the pocket by the narrowed mouth portion of the bag body, a cut portion is formed in the adhesive tape. Therefore, since the cut portion is already formed in the adhesive tape at the initial stage, the subsequent steps are performed in the same manner as the winding of the adhesive tape by the conventional bag sealer.

Further, a cutting portion forming roller having a plurality of cutting portion forming tools on its peripheral surface may be provided so as to partially project into the guide path. The cutting portion forming roller is rotatably provided adjacent to an operating portion for interlocking the cutter. It may be either the front part or the rear part of the operating part. By providing the cut portion forming roller, the cut portion is formed on the adhesive tape wound around the mouth while passing through the guide path.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings.

FIG. 1 shows an embodiment of a bag sealer 1 according to the present invention, in which a cutting portion forming tool 4 is provided at the abutting portion of a guide path 3 provided in a main body 2. The usage state of the bag sealer 1 will be described. An adhesive tape 5 to be bound is unwound from a tape reel 9 and supported by a winding roller 6, and an end portion of the adhesive tape 5 is springed by the winding roller 6 and the winding roller 6. It is in a state of being stuck to the pressing body 8 between the pressing bodies 8 pressed and contacted at 7. The winding roller 6 is provided with a plurality of pockets 10 on its peripheral surface, and supports the adhesive tape 5 at the upper portion of the pockets 10. In this state, the squeezed mouth portion 12 of the bag body 11 is fitted into the pocket 10 of the winding roller 6 so as to intersect with the guide path 3 and the pocket 10 together with the adhesive tape 5.
Push it inside. At this stage, the adhesive tape 5 is wrapped around the mouth portion 12 to some extent. Then, when the winding roller 6 is lowered while being rotated, the end portion of the adhesive tape 5 and the adhesive tape 5 on the side continuous with the tape reel 9 are attached and bound by the claws 13 of the pressing body 8. Next, when it is further lowered and the operating portion 14 provided at the lower portion of the guideway 3 is pushed, the cutter 15 interlocking with the operating portion 14 is pushed.
Is projected to the guide path 3 and the adhesive tape 5 which is continuous with the tape reel 9 is cut to complete the binding. The above process is almost the same as that of the conventional bag sealer.

In the present invention, after the adhesive tape 5 is bound and cut at the mouth portion 12, it is further lowered and wound around the mouth portion 12 by the cutting portion forming tool 4 provided at the abutting portion of the guide path 3. The adhesive tape 5 is pressed against the adhesive tape 5 to form the cut portion 16 on the adhesive tape 5. The process of forming the cutting portion 16 can be performed almost the same as the process of binding and cutting the conventional adhesive tape 5, and the narrowed mouth portion 12 of the bag body 11 is lowered along the guide path 3. Just enough. Therefore, the cutting portion forming tool 4 may be detachably provided and attached when the cutting portion 16 needs to be formed. Further, various cutting part forming tools 4 may be replaced as described later.

FIG. 2 shows a state in which the cutting portion 16 is formed by the cutting portion forming tool 4. In the present example, the cutting portion forming tool 4 is provided in which needle-like ones for forming perforations are continuously provided as the cutting portion 16. That is, after binding the adhesive tape 5,
The adhesive tape 5 is pressed against the needle, which is the cutting portion forming tool 4, to form perforations. The cutting portion forming tool 4 may be a V-shaped cutter as shown in FIG. 3A or a linear cutter for cutting a part of the adhesive tape 5 as shown in FIG. 3B. It is also possible to project only one needle as shown in FIG. When making a V-shaped notch on the adhesive tape 5 with a V-shaped cutter, a V-shaped notch may be provided opposite to the notch on both sides of the adhesive tape 5. This also applies to a linear cutter or needle. Further, in the case of sticking into one needle, the sticking tape is pulled out after the sticking, but it may be pulled in the lateral direction without being pulled out and a part of the adhesive tape 5 may be cut. The operation of pulling in the lateral direction is similar to the operation of pulling out the mouth portion 12 from the guide path 3 after the binding is completed, and the cutting portion 16 can be formed more easily. In this case, there is a possibility that part of the bag body 11 may be cut, but there is no particular problem because it is on the opening 17 side of the mouth 12.

When cutting the side portion of the adhesive tape 5 such as a V-shaped cut, depending on the contents stored in the bag 11, depending on the amount and size of the contents or rough handling, the cutting may be performed. There is a risk that the part 16 will naturally cut. However, even if there is such a risk, it can be eliminated by providing the notch on the opening 17 side of the mouth 12. FIG. 4 shows a united adhesive tape 5 having a cut portion 16 formed therein. The figure (a) is a perforation, the figure (b) is a V-shaped cut on the opening 17 side, the figure (c) is a linear cut on the opening 17 side, and the figure (d) is the opening. 1
A hole is provided on the 7 side.

FIG. 5 shows another embodiment of the present invention.
The cutting portion forming tool 4 is provided at the bottom of the pocket 10 of the winding roller 6. This is to form a cut portion 16 in the adhesive tape 5 when the adhesive tape 5 is pushed into the pocket 10 by the narrowed mouth portion 12 of the bag body 11 to be bound. When the cut portion 16 is formed on the adhesive tape 5, the tensile strength of the adhesive tape 5 naturally lowers, and the cut portion 16 is cut at a stage of pulling the adhesive tape 5 until the subsequent winding process or cutting process. However, when the adhesive tape 5 is pushed into the pocket 10 by the mouth portion 12, the portion from the portion where the cutting portion 16 is provided to the mouth portion 12
Since the adhesive tape 5 is adhered to a part of the peripheral surface of the adhesive tape 5, the cutting portion 16 is not directly pulled, and the adhesive force of the adhesive tape 5 can prevent the cutting portion 16 from being pulled. There is no problem. Also in this example, any cutting portion forming tool 4 such as a V-shaped cutter or a needle may be used. Further, as in this example, the winding roller 6 is attached to the cutting portion forming tool 4
In the case where the adhesive tape 5 is provided, in consideration of the case where the adhesive tape 5 does not need to be provided with the cutting portion 16, the attachment / detachment is facilitated so as to be replaced with the winding roller 6 which is not provided with the normal cutting portion forming tool 4. Is preferred. If you do this,
Since the winding roller 6 provided with various cutting portion forming tools 4 can be easily replaced, it can be easily adapted according to the contents stored in the bag body 11.

FIG. 6 shows still another embodiment of the present invention, in which a cutting portion forming roller 18 having a plurality of cutting portion forming tools 4 provided on the peripheral surface below the operating portion 14 is provided in the guide path 3. It is rotatably provided by projecting part. This is provided on the cutting portion forming roller 18 while rotating the cutting portion forming roller 18 while the adhesive tape 5 is bound to the mouth portion 12 and cut by the cutter 15 and then the guide path 3 is further lowered. The cutting portion 16 is provided on the adhesive tape 5 bound to the mouth portion 12 by the cutting portion forming tool 4. The cutting portion forming roller 18 is not limited to this example, and may be provided at a position where the cutting portion 16 is provided substantially at the same time as the cutting by the cutter 15 even in the upper portion or the lower portion of the operating portion. Further, the cutting portion forming tool 4 is not limited to this example, and any other cutting portion forming tool 4 may be formed. Since the cutting portion forming roller 18 is rotated to form the cutting portion 16, two or more cutting portions 16 are formed. Thus, the cutting portion forming tool 4 may be densely provided on the peripheral surface thereof. The cutting portion forming roller 18 is also detachable so that it can be easily replaced, and the distance to the guide path 3 can be adjusted according to the thickness of the mouth portion 12 or it is biased by a spring. You may make it press on the side which the opening part 12 which wound the adhesive tape 5 passes.

[0019]

As described above, in the bag sealer according to the present invention, since the cut portion is formed in the bound adhesive tape,
The adhesive tape can be easily removed at the time of opening. In addition, since the cutting portion is not formed on the adhesive tape in advance, it is formed at the time of winding it around the narrowed mouth portion of the bag body or after it is wound, so that the adhesive portion of the mouth portion of the bag body is adhered. Since the cut portion can be accurately provided in the wound portion of the tape, it can be easily and surely opened simply by widening the opening side of the mouth portion of the bag, which is extremely useful in practice. is there.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a bag sealer according to the present invention.

FIG. 2 is a vertical cross-sectional view showing a state in which a cut portion is formed on a wound adhesive tape.

3A, 3B, and 3C are perspective views showing other examples of the cutting portion forming tool, respectively.

4 (a), (b), (c), and (d) are side views showing a state in which a cut portion is formed on each of the bound adhesive tapes.

FIG. 5 is a cross-sectional view showing another example of the present invention.

FIG. 6 is a cross sectional view showing still another example of the present invention.

[Explanation of symbols]

 1 Bag Sealer 2 Main Body 3 Guide Path 4 Cutting Section Forming Tool 5 Adhesive Tape 6 Rolling Roller 7 Spring 8 Pressing Body 9 Tape Reel 10 Pocket 11 Bag Body 12 Mouth 13 Claw 14 Working Part 15 Cutter 16 Cutting Part 17 Opening Side 18 Cutting part forming roller

Claims (3)

[Claims] 1. A winding roller rotatably supported at one side of a groove-shaped guide path for guiding a narrowed portion of the mouth of the bag body, the winding roller being rotatably supported. A pressing body that is provided on the other side of the path at a position facing the winding roller and presses and abuts against the winding roller by being biased by a spring, and guides to the winding roller by passing through the guide path. Cut the adhesive tape that is wound around the squeezed portion of the bag body around which the wound adhesive tape is wound and the adhesive tape that is wound around the squeezed portion of the bag body and is continuous with the tape reel In the device comprising a cutter projecting into the guideway in conjunction with the operating portion, the mouth of the bag body is squeezed at a portion which passes through the operating portion and abuts in the extension direction of the guideway. A cutting portion forming tool for forming a cutting portion is provided on the adhesive tape wound around the closed portion. Bag Sheila to do. 2. A wrapping roller with a pocket, which is rotatably supported on one side of a groove-shaped guide path for guiding a narrowed portion of the mouth of the bag body and rotatably supported by a peripheral surface of the guide path. A pressing body that is provided on the other side of the guide path at a position facing the wrapping roller and presses and abuts the wrapping roller by being urged by a spring, and the wrapping roller that passes through the guide path. The operating part to which the narrowed part of the mouth of the bag body around which the adhesive tape guided to the side is abutted, and the adhesive tape wound around the narrowed part of the mouth part of the bag and connected to the tape reel In a device that comprises a cutter that cuts off and that projects into the guide path in conjunction with the operating portion, inside the pocket of the winding roller,
A bag sealer, characterized in that a cutting portion forming tool for forming a cutting portion is provided on an adhesive tape that can be pushed in at the narrowed portion of the mouth portion of the bag body. 3. A winding roller rotatably supported at one side of a groove-shaped guide path for guiding a narrowed portion of the mouth of the bag body, the winding roller being rotatably supported. A pressing body that is provided on the other side of the path at a position facing the winding roller and presses and abuts against the winding roller by being biased by a spring, and guides to the winding roller by passing through the guide path. Cut the adhesive tape that is wound around the squeezed portion of the bag body around which the wound adhesive tape is wound and the adhesive tape that is wound around the squeezed portion of the bag body and is continuous with the tape reel In a device comprising a cutter projecting into the guideway in conjunction with the operating portion, the mouth of the bag is squeezed on at least one side of the guideway adjacent to the operating portion. This is for forming cut parts on the adhesive tape wound around the part, and forming multiple cut parts on the peripheral surface. A bag sealer comprising a cutting portion forming roller provided with a tool so as to be rotatable.