JP2002255114A - Vacuum-compression-packaging method for compressible object - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum-compression-packaging method for a compressible object with which an opening of a storage bag can be securely heat-sealed. SOLUTION: The method comprises a process of receiving the compressible object 8 in a packaging bag 7 made of a plastic film, a process of inserting a tip of a suction tube 2a of a vacuum-suction device 2; a process of holding an outer peripheral surface of an inserted portion of the suction tube 2a with pressure applied by a pressure-holding member 3 to bring the plastic film into pressure contact airtightly with the outer peripheral surface of the inserted portion, and at the same time bringing an opposite side rim of the plastic film on a storage mouth of the packaging bag 7 other than the inserted portion into pressure contact airtightly by a pressurizing member 4; a process of sucking air in the bag 7 by the vacuum-suction device 2 to compress the compressible object 8 by vacuum-pressure-reduction of the device 2; and a process of advancing a heat-sealing member 5 which is constructed to be capable of advancing/ retreating over a full width of the storage mouth of the packaging bag 7 below the inserted suction tube 2a to have the storage mouth heat-sealed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a method for vacuum-compressing a compressible material, and more particularly, to a method for storing a large amount of bulky paper pieces finely cut by a shredder in a packaging bag. The air in the packaging bag is sucked by a vacuum-type suction machine, and by the vacuum decompression action, a group of large and bulky pieces of paper contained in the packaging bag are compressed to a low volume. The present invention relates to a technique that can facilitate convenience such as storage and transportation.

[0002] The term "compressible material" as used in the present invention means, besides the above, medical waste that can be compressed, such as used cotton, bandage, gauze, etc., other industrial waste that can be compressed, It is a generic term including various clothing, futon fiber products and their materials.

[0003]

2. Description of the Related Art Vacuum compression packaging of compressible materials of this kind is well known in the art. For convenience of carrying during travel, it is a known and publicly used technology that has been used for a long time.

[0004] As a typical means, an engagement chuck is provided on the inner surface on both sides of the periphery of a storage bag made of a plastic film having one side opened, and after storing a required compressible material in the storage bag. Means for compressing the compressible material by hand or other pressurizing means, releasing the air in the storage bag from the opening, and then engaging the chuck to reduce the bulk of the compressible material, or a heat-adhesive plastic After accommodating the compressible material from the opening edge of the film-containing storage bag, the air in the storage bag is discharged from the opening while compressing the compressible material by hand or other pressing means in the same manner as described above. Inserts the tip of the suction pipe of the vacuum type suction machine into the opening, sucks and discharges the air in the storage bag from the opening, and heat seals the edges of the opening to reduce the bulk of the whole compressible material Means are widely adopted and implemented That.

[0005]

However, both of the above cases require cumbersome and difficult manual work, so that there is a problem that it is inefficient, the manual work is incomplete, and it is difficult to obtain the desired effect. In particular, the fact that heat sealing is incomplete is pointed out as a major problem.

The present invention has been developed in order to address the above-mentioned problems, and can be carried out semi-automatically and efficiently, not only by manual operation, but also by heat sealing the opening of the storage bag. It is an object of the present invention to provide a method for vacuum-compressing and packaging a compressible material that can reliably achieve the above.

[0007]

SUMMARY OF THE INVENTION As a means for solving the above-mentioned problems and achieving the object, the present invention provides a method for compressing a compressible material into a packaging bag made of a heat-adhesive plastic film having an accommodating opening for compressible material. A step of accommodating an object, a step of inserting a distal end of a suction tube of a vacuum-type suction machine into the accommodation port, and a pressure holding member having an outer peripheral surface of an insertion portion of the suction tube, at least one of which is configured to be able to advance and retreat. And pressurizedly adheres the plastic film to the outer peripheral surface of the insertion portion in a gas-tight manner, and at the same time, at least one of the facing edges of the plastic film in the receiving opening of the packaging bag other than the insertion portion is moved forward and backward. A step of tightly pressurizing and adhering with a freely configured pressure member, and in this state, suctioning air in the packaging bag by a vacuum-type suction machine to reduce the vacuum pressure,
A step of compressing the compressible material contained in the packaging bag to reduce its bulk, and a heat sealing member configured to be able to advance and retreat at least one side over the entire width of the accommodation port of the packaging bag below the inserted suction tube. A process of advancing the heat-sealing of the accommodating opening, and a step of retreating the heat-sealing member, the pressure holding member, and the pressure member after completion of the heat sealing, respectively. A vacuum compression packaging method is provided.

Further, the present invention provides the above method for vacuum-compressing and packaging a compressible material, wherein the pressure holding member, the pressure member and the heat sealing member are integrally formed. The method and the heat seal member are constituted by a heating element provided with a heater at a front portion, which is accommodated in a space provided to be opened and opened in the front-rear direction in a case-shaped holding element, and the heating element is The present invention provides a method for vacuum-compressing and packaging a compressible object, wherein a motor shaft is configured to move back and forth by a motor shaft of a type that moves forward and backward in an axial direction.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of the present invention will be described based on a vacuum compression packaging apparatus for compressible objects shown in the accompanying drawings. FIG. 1 is a schematic side view of the entire apparatus. In FIG. 1, FIG. 2 and FIG. 3, reference numeral 1 denotes a frame with a cart of the apparatus, 2 denotes a vacuum type suction machine (vacuum suction pump),
Reference numeral 3 denotes a pressure holding member for the plastic film on the outer peripheral surface of the suction tube 2a of the suction device 2, reference numeral 4 denotes a pressure member for the opposite edge of the plastic film in the housing opening of the packaging bag other than the suction tube 2a, and reference numeral 5 denotes a pressing member. A heat sealing member, 6 is a member for moving the pressure holding member 3 and the pressing member 4 toward and away from the heat sealing member 5, 7 is a packaging bag made of a heat-adhesive plastic film, and 8 is finely cut by a shredder. Each shows a group of multiple bulky paper strips.

A vacuum type suction unit 2 is disposed above the trolley 1 with a trolley, and a packaging bag 7 containing a large number of paper strips is placed below. hand,
The tip of the suction pipe 2a of the suction machine 2 is inserted shallowly into the upper opening.

As shown in FIGS. 2 and 3, the pressure holding member 3 is formed in a semi-cylindrical shape in several stages at a central portion on the inner side in the lateral direction of the pair of pressure members 9 facing each other. And semi-cylindrical concavo-convex ring-shaped contact members 3a, 3a made of rubber and other elastic materials. The pressing member 4 is formed on both sides of the semi-cylindrical two contact members 3a and 3a, and is made of the same material as above, and has a plurality of uneven contact members 4a which are linearly connected in a horizontal direction and extend over several stages. 4a.

In this embodiment, the heat sealing member 5 is integrally and opposed to the lower side of the pressure holding member 3 and the pressure member 4 so as to freely contact and separate from each other. In this embodiment, a heating member 5a is provided on the right side in FIGS. 1 and 2 and FIGS.
A pressure-receiving member 5b is provided on the left side of each drawing.

[0013] In Thus, the heating member 5a is in shaped case member 5a ₁ of the front shape calyx, lateral as it was pierced in the lateral direction of the gap 5a ₂ (length of the width of the packaging bag) provided with, in the gap 5a _2, it is constructed by inserting the horizontal Nagano reciprocating member 5a ₄ having a heater 5a ₃ next Naka the tip.

Further, in this embodiment, the pressure receiving member 5b is formed in an inverted letter in front view, has the same shape and the same size as the heating member 5a, and has an elongated middle tip 5a _5. , when 5b ₁ are in contact, it is configured to挾圧both sides of the packaging bag 7 to be described later in its length range and a width range.

Furthermore, the movement of the reciprocating member 5a ₄ of the heating element 5a, in this embodiment, the shaft moves forward and backward in the axial direction, known linear motor to be described later (SM-
The distal end of the shaft of the MOTOR) M, as shown in FIG. 10, are intended to be done by attaching the intermediate portions of the frame of the reciprocating member 5a _4. (Details will be described later.)

The pressure holding member 3 and the pressure member 4
The contact / separation operating member 6 of the heat seal member 5 is configured as follows. That is, as shown schematically in FIG. 2, the contact / separation operating member 6 includes a manually operated rod 6 having a gear 6a at a lower end.
The rack rods 6c and 6d are horizontally engaged and disposed above and below the gear 6a, and the bending rods 6e and 6f, which are bent at right angles downward and vertically, are disposed on the right and left sides of FIG. The left bending rods 6e and 6f are attached to the pressing members 4 and 4 of the pair of pressing members 9 and 9 which are opposed to each other. The heat seal members 5 and 5 integrally connected to the lower part of 3 are also attached at the same time.

Also, the known linear motor (S
The configuration of the M-MOTOR) M will be described with reference to FIG. 9. In FIG. 9, reference numeral 10 denotes a motor main body, 11 denotes a magnet, 12 denotes a rotor, 13 denotes a motor shaft, 14 denotes a bearing, and 15 denotes a linear movement. The moving output shaft is shown, and in this embodiment, the linear motor M
Is to use attached to reciprocating member 5a ₄ of the heating member 5a of the heat seal member 5 of the tip and the output shaft 15.

Further, the structure of the heating member 5a of the heat sealing member 5 will be more specifically described with reference to FIG. In FIG. 10, 5a ₃ horizontal Nagano heater provided at the tip, 5a ₄ is a reciprocating member of the frame-like, the output shaft of the linear motor M to the intermediate portion of the frame-shaped reciprocating member 5a ₄ those with attaching the tip, placing the linear motor M on the rear frame of the reciprocating member, the heating member 5a, to insert places the heater 5a ₃ the case member 5a ₁ of the gap 5a in ₂ toward the distal end in and, 5a ₆ shows the adjustment spring pressing time of the heating member 5a in FIG.

Next, a specific example of the vacuum compression packaging method based on the vacuum compression packaging apparatus for compressible materials configured as described above will be described with reference to the accompanying drawings.

First, as shown in FIG. 1, a plurality of paper strips 8 finely cut by a shredder are accommodated in a packaging bag 7 made of a heat-adhesive plastic film. The packaging bag 7 is placed on the lower portion of the
The shallow end of the suction pipe 2a of the vacuum suction device 2 is inserted into the upper opening of the vacuum suction device 2. At this time, the tip of the suction tube 2a is
As shown in (1), the heat sealing member 5 needs to be located above the heating member 5a.

Next, when the manual operation rod 6b of the contact / separation operating member 6 is turned to the left as viewed in FIG. 2, the pressure holding member 3 is brought into contact with the suction pipe via the contact member 3a as shown in FIG. While holding the plastic film on the outer peripheral surface of 2a in an airtight manner,
Opposite edges of the plastic film in the storage opening of the packaging bag 7 other than the insertion portion are hermetically pressed through the close contact member 4a of the pressing member 4.

In this state, the vacuum type suction machine 2
Is operated, the inside of the packaging bag is decompressed and a large number of finely cut small pieces 8 which are finely cut are compressed low in volume. The letter-shaped protrusions are slightly separated.

Further, when the manual operation rod 6b of the contact / separation operating member 6 is further pulled toward the user, the protruding portions of the heat seal member 5 in the shape of a letter "C" and the letter "U" are brought into close contact, and one of the letter "C" is formed. a heater 5a ₃ of the heating member 5a of, over the entire width of the housing opening of the packaging bag 7 at the lower side of the suction pipe 2a, the housing opening be those heat sealing, as a result, the packaging bag 7
The group of paper strips 8 therein is remarkably reduced in volume together with the packaging bag 7 as shown in FIG.

[0024] Incidentally, FIGS. 12 to 14 shows the position of the heater 5a ₃ of the heating member 5a, FIG. 12 is the position of the heater 5a ₃ in the heat storage state, FIG. 13 is an output shaft 15 of the linear motor M is slightly extruded state heater 5a ₃ advances, FIG. 14 shows each state of the heater 5a ₃ is extruded to the maximum.

Next, the operation procedure of the linear motor (SM-MOTOR: motor in which the motor shaft moves in the axial direction) configured as described above will be described with reference to the sequence wiring diagram shown in FIG.

An AC power supply AC100 is provided between power supply buses AB.
V is added. 1. When the button of the switch SW is pressed, the relay Ry1 is energized, the contact a closes, and the switch R is activated even when the button of the switch SW is released.

2. When the contact a of the relay Ry1 is closed and the time switch T is energized and set to the set time of the timer, the contact a of the relay Ry2 is closed and the vacuum pump VP
And the heater H is energized to start heating. The pilot lamp PL lights up.

3. When the set time of the time switch T comes, the contact b of the time switch T opens, the contact a of the relay Ry2 also opens, and the vacuum pump VP stops. When the contact a of the time switch T is closed and the drive motor M of the hot wire plate is energized, a voltage of 100 V
Transform to 3.2V. In addition, an output shaft that converts AC into DC is pushed out. Before energization, the switch A is pressed and turned on by the output shaft, the contact of the relay Ry3 is closed by energization, the motor M is turned on, and the output shaft is pushed out. As a result, the contact of the switch A is turned off because the contact is released, but the contact of the relay Ry3 is in the closed ON state. When the output shaft is pushed out, the switch B is pressed and turned on. When the switch B is turned on, the contact of the relay Ry5 is closed, and the contact of the relays Ry5 and Ry5 is switched, so that the circuit (+-) of the motor M is inverted, reversely rotated, and the output shaft returns to the original position. By returning the output shaft to the original position, The switch B is turned off when the contact is released, but is in an ON state in which the contact of the relay Ry5 is closed. II. The contact of the switch A is pressed and turned on.

4. When switch A is turned on, relay 4
, The Ry4 contact b opens and the power is turned off. When the power is turned off, the contacts of the relays Ry1, Ry3, Ry4, and Ry5 return to the initial values. The circuit (+-) of the motor M also returns to the initial value.

Although the main embodiment of the present invention has been described in detail, the present invention is not limited to this embodiment. For example, the reciprocating member 5a ₄ of the heating member 5a may be used.
Instead of using the output shaft 13 (15) of the linear motor M for forward and backward movement, a cam member having an uneven peripheral surface (not shown) can be used instead. In short, various design changes can be made within a range that can achieve the object of the invention and do not change the gist of the invention, and these design changes are also included in the scope of the present invention.

Further, in the above-described embodiment, each of the opposed pressure holding members 3, 3, the pressure members 4, 4, and the heat sealing members 5, 5 are moved so that they can be freely contacted and separated. However, instead of this, one of the opposed members may be fixed, and the other may be configured to be movable so that the opposed members are brought into contact with or separated from each other.

[0032]

According to the present invention, there is provided a process for accommodating a compressible material in a packaging bag made of a heat-adhesive plastic film having an accommodating material accommodating opening, and a method for mounting a suction pipe of a vacuum type suction machine in the accommodating opening. A step of inserting the distal end portion, and pressurizing and holding at least one of the outer peripheral surfaces of the insertion portion of the suction tube with a pressure holding member capable of moving forward and backward, and airtightly pressurizing the plastic film on the outer peripheral surface of the insertion portion. A step of allowing the opposite sides of the plastic film in the housing opening of the packaging bag other than the insertion portion to be simultaneously airtightly pressurized and pressed by a pressing member configured to be able to advance and retreat at least one side; A process of sucking air in the packaging bag by a vacuum suction device and compressing the compressible material contained in the packaging bag to reduce its volume by a vacuum depressurizing action, and A step of advancing a heat sealing member configured to be able to advance and retreat at least one side over the entire width of the housing opening to heat seal the housing opening, and after completion of the heat sealing, the heat sealing member, the pressure holding member, and The method according to the present invention relates to a method for vacuum-compressing and packing a compressible material, which comprises a step of retreating the pressurizing members, so that the intended compressible material is efficiently compressed to significantly increase its bulk. It is possible to reduce the size and achieve various effects based on it. In particular, the airtight pressure holding effect and the suction of the plastic film on the outer peripheral surface of the suction tube inserted into the packaging bag due to the close contact member. The effect of airtight pressurization at the opposite edge of the plastic film in the storage opening of the packaging bag other than the insertion part of the pipe is great, and can be achieved by the conventional technology. Useful noticeable invention may provide an advantage that can not be.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing an example of an apparatus for carrying out a vacuum compression packaging method of a compressible object.

FIG. 2 is a schematic side view of each pressure holding member opposed to a lower end and a contact / separation operating member of each pressure member.

FIG. 3 is a perspective view showing an inner surface side of one pressure holding member, one pressure member, and a heat sealing member.

FIG. 4 is an explanatory view showing a first step of the vacuum compression packaging method.

FIG. 5 is an explanatory view showing a second step of the vacuum compression packaging method.

FIG. 6 is an explanatory view showing a third step of the vacuum compression packaging method.

FIG. 7 is a plan view of a pair of pressure members facing each other.

FIG. 8 is a front view thereof.

FIG. 9 is a partial longitudinal front view of the linear motor.

FIG. 10 is a plan view of a heat seal member.

FIG. 11 is a side view after the enlargement.

FIG. 12 is a plan view showing the position of the heater in a state where the heat seal member is retracted.

FIG. 13 is a plan view showing the position of the heater in a state where the heat seal member is slightly advanced.

FIG. 14 is a plan view showing the position of the heater in a state where the heat seal member has advanced most.

FIG. 15 is a side view showing the position of the heater of the heating member in the gap between the cases of the heat sealing member.

FIG. 16 is a side view showing a state in which the heater of the heating member has advanced to a position where heat sealing is possible in the gap between the cases of the heat sealing member.

FIG. 17 is a sequence wiring diagram for explaining an operation procedure of the linear motor.

FIG. 18 is a side view showing a bulky and reduced paper strip group and its packaging bag.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Stand with a trolley 2 Vacuum type suction machine 2a Suction tube 3 Press holding member 3a Close contact member 4 Press member 4a Close contact member 5 Heat seal member 5a Heat member 5a ₁ Case member 5a ₂ Gap 5a ₃ Heater 5a ₄ Reciprocating member 5a ₅ Slender middle tip 5a ₆ Pressurizing time adjustment spring 5b Pressure receiving member 5b ₁ Slender middle tip 6 Contacting / separating operating member 6a Gear 6b Manual operation rod 6c Upper rack rod 6d Lower rack rod 6e Bending rod 6f Bending rod Reference Signs List 7 packaging bag 8 cut paper strip group 9 pressure member M linear motor 10 motor body 11 magnet 12 rotor 13 motor shaft 14 bearing 15 output shaft

Claims (3)

[Claims] 1. A step of accommodating a compressible material in a packaging bag made of a heat-adhesive plastic film having an accommodating opening for compressible material, and inserting a distal end of a suction pipe of a vacuum-type suction machine into the accommodating opening. And pressurizing and holding the outer peripheral surface of the insertion portion of the suction tube by a pressure holding member configured to be able to advance and retreat at least one of the suction tubes so that the plastic film is airtightly pressed and adhered to the outer peripheral surface of the insertion portion. And simultaneously pressing the opposite edge of the plastic film in the housing opening of the packaging bag other than the insertion portion in a gas-tight manner with a pressure member configured to be able to advance and retreat at least one side, and a vacuum suction in this state. A process in which the air in the packaging bag is sucked by a machine to compress the compressible material contained in the packaging bag to reduce the volume thereof by a vacuum decompression action, and the package bag is collected below the inserted suction tube. A step of advancing a heat sealing member configured to be able to advance and retreat at least one side over the entire width of the opening to heat seal the storage opening, and after the completion of the heat sealing, the heat sealing member, the pressure holding member, and A step of retracting the pressurizing members, respectively. 2. The method according to claim 1, wherein the pressure holding member, the pressure member, and the heat sealing member are integrally formed. 3. The heat seal member is constituted by a heating body having a heater at a front part, which is housed in a space provided in the case-like holding body and opened and opened in the front-rear direction. The method of claim 1, wherein the body is configured to move back and forth by a motor shaft of a type in which a motor shaft advances and retreats in an axial direction.