JPH0669101U - Automatic filling and packaging equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] A single bag supporting portion, a filling portion, and a sealing portion are provided at the same location to simplify the transport mechanism, downsize the apparatus, and reduce the manufacturing cost. [Structure] A single-bag adsorbing section 1 for adsorbing the opening 8a side of the single bag 8, and a swing cylinder 9 attached to the tip of the single-bag adsorbing section 1 for conveying the single bag 8 to a position below a hopper 10. A hand chuck 11 that is movably provided on both ends of the opening 8a of the single bag 8 that has been conveyed to the hopper 10 and that holds the single bag 8; and a cylinder 13 that adjusts the distance between the two hand chucks 11. A suction unit 14 that sucks and spreads both sides of the opening 8a, and a lifting cylinder 18 of the hopper 10.
An opening / closing cover 19 attached to the outlet of the hopper 10 inserted into the opening 8a; a cover opening / closing mechanism for opening the cover 19; a cushion mat 28 for pressing the filled single bag 8 from both sides; And a seal portion 4 provided with a heater 32 for heat-sealing 8a.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for automatically filling the contents of a single bag and heat-sealing the opening for packaging.

[0002]

[Prior art]

 Generally, when packaging foodstuffs automatically, the bag to be wrapped is made by continuously pulling out a rolled plastic film, rolling both ends along the longitudinal direction to the inside, and overlapping the ends. After heat-sealing in the vertical direction to form a tube, heat-sealing in the horizontal direction to form a bag, and in this state, fill the contents quantitatively from the upper opening and then open the opening. Are heat-sealed in the horizontal direction for sealing, and then cut to separate them one by one.

However, the bag formed continuously while filling the contents from the plastic film as described above is heat-sealed in a state where three films are overlapped at the central part where the upper and lower parts are heat-sealed. , The joints here may not be reliable and the airtightness may not be obtained sufficiently. For example, when packaging a large number of artificially cultivated nameko, the nameko has a lot of water, so if the airtightness is poor, water will leak from the heat-sealed seal part, or air will enter inside and the nameko will remain fresh. Deterioration and poor shelf life. There is also the problem that consumers are likely to feel pain when they buy a bag by touching it with their hands, and if even one defective product is found in the inspection, the entire lot of one box may be returned.

In addition, in a device for filling while continuously forming a bag from a plastic film, if the part forming the bag fails, the entire device cannot be used even if the filling part can be operated, so repair time will be reduced. In some cases, especially in the case of nameko whose freshness is important, it must be discarded.

Therefore, when packaging Nameko, the film is bent into a U shape, and the overlapping ends are heat-sealed in the vertical direction to make a single bag with an open top at the bag maker. Has come to be used in which the opening is widened with this single bag held in hand, the nameko is filled from here, and then the opening is laterally heat-sealed with a heater for sealing. . Since this single bag has a heat-sealed portion only at a portion where two films are overlapped, it is reliably bonded and has excellent airtightness.

[0006] However, this single bag is opened one by one by hand, then is filled one bag at a time under the hopper of the filling machine, and then the opening is laterally heat-sealed with a sealing machine. Since it is necessary to seal it, the work is troublesome and the workability is extremely poor, and automation has been desired.

Therefore, the present inventor first adsorbs the single bag by the single bag adsorbing section and conveys it to the single bag supporting section, in which both sides of the opening of the single bag are supported by fingers and the first conveying operation is performed. Part of the bag is transported to the bottom of the hopper, the contents of the bag are filled from the hopper with the opening of the single bag expanded, and then the filled single bag is transferred to the seal part in the second transfer part. Here, we have developed an automatic filling and packaging device (Japanese Patent Application No. 3-335369) that seals the opening by heat fusion with a heater.

With this structure, when filling the nameko etc. from the hopper with the opening of the single bag expanded, the slime of the nameko adheres to the fingers and the holding power of the single bag is reduced and the single bag falls. However, since there is a problem that the heater of the seal part is sticky and heating failure occurs, the single bag support part, the filling part and the seal part are installed separately from each other, and the first carrying part and the second carrying part are separated from each other. It was structured so that it was sequentially transported by the transport unit. For this reason, the device is complicated, the number of parts is large, the device is large, and the manufacturing cost is high.

[0009]

[Problems to be solved by the device]

 The present invention eliminates the above-mentioned drawbacks and prevents the contents from falling by keeping the discharge port of the hopper closed until filling, and the single bag supporting part, the filling part and the sealing part are provided in the same place to convey the contents. It is an object of the present invention to provide an automatic filling and packaging apparatus which simplifies the mechanism, downsizes the apparatus, and reduces the manufacturing cost.

[0010]

[Means for Solving the Problems]

 The present invention is composed of a single bag suction part that sucks the opening side of the single bag, and a swing cylinder that is attached to the tip of the single bag suction part to rotate and slide, and conveys the single bag to the bottom of the hopper. A single-bag transport unit, a hand chuck that is movably provided at both longitudinal ends of the opening of the single bag transported to the hopper by the single-bag transport unit, and that holds the single bag, and both hand chucks. A cylinder that adjusts the space along the longitudinal direction of the opening of the single bag, a suction part that sucks both sides of the opening to widen the opening, a lifting mechanism for the hopper, and a single bag opening. An opening / closing cover attached to the discharge port of the hopper, a cover opening / closing mechanism that opens the cover as the hopper descends, and a deaeration mat that is provided below the hopper and presses the filled single bag from both sides. Bag opening And it is characterized in that comprising a sealing portion having a heater for heat sealing.

[0011]

[Action]

 The operation of filling the contents into a single bag by the automatic filling and packaging apparatus of the present invention will be described. First, set a plurality of single bags in the stock case, and operate the single bag suction unit to suck only one single bag at the top of the stock case. After that, the swing cylinder in the single-bag transport section rotates to pull up the single bag, and then the swing cylinder extends to transport the single bag to the filling section. When the single bag is conveyed to the hand chuck of the filling section, both ends of the opening of the single bag are clamped here. Next, one of the hand chucks is extended, the gap between the two hand chucks is narrowed, and the opening of the single bag is slightly opened. After that, the suction part approaches and adsorbs from both sides of the opening of the single bag, and the suction part is further retracted to keep the opening wide.

When the hopper elevating mechanism is operated with the opening of the single bag thus widened, the hopper supported here descends, and the open / close cover rotates while being inserted into the opening. Then, the discharge port is opened with the opening forcedly opened. After that, the contents are put into the hopper by a fixed amount from the automatic quantifier provided above the hopper, and the single bag is fixedly filled from this discharge outlet. After that, when the hopper lifting mechanism is operated to raise the hopper, the open / close cover is closed. After that, the degassing mat of the sealing part slowly pushes the single bag from both sides to degas the inside, and then the heater is heat-sealed to complete the sealing.

[0013]

【Example】

 Hereinafter, the present invention will be described in detail with reference to FIGS. In the figure, 1 is a single bag suction part, 2 is a single bag transport part, 3 is a filling part, and 4 is a seal part. As shown in FIG. 2, the single bag suction unit 1 has a suction pad 6 attached to the tip of a cylinder 5 so that the suction pad 6 can suck and lift the single bags 8 contained in the stock case 1 one by one. There is.

Further, the single-bag transport unit 2 is composed of a swing cylinder 9 that rotates and slides, and a cylinder 5 to which a suction pad 6 is attached is attached to the tip of the swing cylinder 9 to suck the single bag 8. The single bag 8 is conveyed to the hand chuck 11 provided in the filling section 3 while being rotated by. As shown in FIG. 5, the hand chuck 11 is provided with two inverted L-shaped fingers 12 and 12 so that both fingers 12 and 12 can be opened and closed to sandwich both ends of the opening 8a of the single bag 8. Has become. Further, one hand chuck 11 is supported by the cylinder 13 so as to be able to move forward and backward, and the space between the hand chucks 11 and 11 for sandwiching both ends of the opening 8a of the single bag 8 is narrowed so that the opening 8a of the single bag 8 is opened. It is designed to spread.

Further, as shown in FIG. 6, a suction unit 14 is provided which is orthogonal to the hand chucks 11 and 11 and which adsorbs both sides of the opening 8a of the single bag 8 to widen the opening 8a. The suction pad 15 is supported by the cylinder 16, and the suction pad 15 is extended to bring the suction pad 15 close to both sides of the opening 8a of the single bag 8 to suck the suction pad 14. Then, the opening 8a is held in the expanded state by contracting.

As shown in FIG. 7, the hopper 10 of the filling section 3 is provided so as to pass through the insertion port 17a of the mounting base 17 having the insertion port 17a formed in the center, and the hopper lifting / lowering mounted on the mounting base 17 is performed. It is supported by a cylinder 18 and can move up and down. The bottom of the hopper 10 has a beak-shaped opening / closing cover 19, 19 rotatably attached by a pin 20 to close the tip of the discharge port. An opening / closing lever 21 is rotatably attached to the side surfaces of the opening / closing covers 19 and 19 by a pin 20, and an upper side of the opening / closing lever 21 is connected to an upper surface of a mounting base 17 by a spring 23. Further, an air blowing pipe 24 is attached downward to the side surface of the one opening / closing cover 19.

A seal portion 4 is provided below the filling portion 3. As shown in FIG. 4, the sealing portion 4 has a pressing plate 27 attached to the tip of a cylinder 26, and a cushion mat 28 serving as a deaeration mat is attached to the front surface of the sealing plate 4, and a large number of hemispherical protrusions are attached thereto. 29 ... are projected at intervals. A bag pressing bar 30 is horizontally provided above the cushion mat 28. Two of these configurations are arranged on both sides of the single bag 8 so as to face each other, and the protrusions 29 protruding from the surface of the cushion mat 28 are displaced from the opposing protrusions 29, respectively, so that the protrusions 29 are compressed. … It is provided so that they do not collide. A heater 32 supported by a cylinder 31 is movably mounted above one holding plate 27, and a heater holding 33 is horizontally provided above the other holding plate 27 facing the holding plate 32.

Next, the case where the single bag 8 is filled with Nameko by the automatic filling and packaging apparatus having the above structure will be described. First, as shown in FIG. 2, a plurality of single bags 8 are set in the stock case 7 with the opening 8a side first. Next, when the power is turned on, the cylinder 5 of the single-bag adsorbing section 1 extends and the suction pad 6 at the tip descends to come into contact with the uppermost single bag 8 in the stock case 7. Since the suction pad 6 is connected to an air suction device (not shown), only the uppermost single bag 8 is sucked.

Thereafter, while the cylinder 5 is contracted and the suctioned single bag 8 is lifted, the single cylinder 8 is rotated by the swing cylinder 9 of the single bag conveying section 2 so that the opening 8a of the single bag 8 is moved upward as shown by a phantom line. To be raised. Next, the swing cylinder 9 extends and is conveyed below the hopper 10 of the filling section 3 as shown in FIG. At this time, the discharge port of the hopper 10 is closed by the opening / closing covers 19, 19. When the single bag 8 is conveyed between the two inverted L-shaped fingers 12, 12 of the hand chuck 11, both fingers 12, 12 are closed and the opening 8a of the single bag 8 is closed as shown in FIG. Hold both ends. When the single bag 8 is clamped by the hand chuck 11, the swing cylinder 9 returns and rotates, and the single bag suction unit 1 returns to the stock case 7.

Next, as shown in FIG. 6, the cylinder 13 connected to the one hand chuck 11 is extended to narrow the gap between the two hand chucks 11, 11 and the opening 8a of the single bag 8 is slightly opened. At this time, air is blown into the single bag 8 from the air blowing pipe 24 attached downward to the side surface of the hopper 10 to hold the opening 8a in a wide state. After that, the cylinder 16 of the suction part 14 extends, and the suction pad 15 attached to the tip of the cylinder 16 approaches and adsorbs from both sides of the opening 8a of the single bag 8, and the cylinder 16 is slightly contracted to open the opening. Hold 8a in the unfolded state.

When the opening 8a of the single bag 8 is widened in this way, the hopper lifting cylinder 18 attached to the attachment base 17 is contracted as shown in FIG. Of the opening and closing covers 19 and 19 are provided so as to face the side surfaces of the opening and closing covers 19 and 19 so that the side surfaces of the opening and closing levers 21 and 21 are slidably brought into contact with the inner edge of the insertion opening 17a and the intervals are narrowed. Turn around. Therefore, the beak-shaped opening / closing covers 19 and 19 connected to the opening / closing levers 21 and 21 are opened by using the pin 20 as a pivotal fulcrum while being inserted into the opening 8a, and the opening 8a is forcibly pushed open. The discharge port opens in this state.

After that, the nameco 34 is quantitatively put into the hopper 10 from an automatic quantizer (not shown) provided above the hopper 10, and the single bag 8 is quantitatively filled from this discharge port. After that, when the hopper lifting cylinder 18 is operated to raise the hopper 10, the opening / closing lever 21 is pulled by the spring 22 to rotate, and the opening / closing covers 19 and 19 connected to this are closed, and the slime of the Nameko 34 is closed. Can be prevented from falling. After that, when the suction of the suction pad 15 is stopped and the cylinder 16 is contracted, the suction pad 15 is separated from the opening 8a, and when the cylinder 13 is contracted, the space between the hand chucks 11 and 11 is widened. The part 8a is in the closed state.

Next, as shown in FIG. 4, when the cylinders 26, 26 are extended, the pressing plates 27, 27 move forward, and the cushion mats 28, 28 attached to this surface are pushed gently from both sides of the single bag 8. Like At this time, a large number of hemispherical protrusions 29 ... Are projected on the surface of the cushion mats 28, 28 at intervals, and are displaced from the protrusions 29. Therefore, the slimy and fluid Nameko 34 is pushed and moved by the projection 29, while the internal air is pushed out from the opening 8a and deaerated.

Further, as the cushion mats 28, 28 advance, the bag retainer rods 30, 30 attached to the cushion mats 28, 28 and the heater 32 also advance, and the bag retainer rods 30, 30 are discharged while the internal air is discharged from the opening 8a. The opening 8a is clamped from both sides. After that, the cylinder 31 extends and the heater 32 and the heater retainer 33, which are heated, sandwich the opening 8a and heat-seal them to complete the sealing. Next, when the cylinders 26, 26 retract, the single bag 8 is released from the bag pressing rods 30, 30 and drops downward.

Further, in the above embodiment, the case where nameko is filled as the content is shown, but any one may be filled as long as the single bag 8 is used. Further, the opening / closing mechanism of the opening / closing covers 19 and 19 provided at the discharge port of the hopper 10 so as to be openable / closable is not limited to the above structure and may have another configuration.

[0026]

[Effect of device]

 As described above, according to the automatic filling and packaging apparatus according to the present invention, the discharge port of the hopper is kept closed until the time of filling to prevent the contents from falling, and the single bag supporting portion, the filling portion and the sealing portion are the same. It can be installed at a certain location to simplify the transport mechanism, downsize the device, and reduce the manufacturing cost.

[Brief description of drawings]

FIG. 1 is a perspective view showing an automatic filling and packaging apparatus according to an embodiment of the present invention.

FIG. 2 is a front view showing the automatic filling and packaging apparatus of FIG.

3 is a plan view showing the automatic filling and packaging apparatus of FIG. 1. FIG.

FIG. 4 is a left side view showing the automatic filling and packaging apparatus of FIG.

FIG. 5 is a perspective view showing a state in which a single bag is held by a hand chuck.

FIG. 6 is a perspective view showing a state in which an opening of a single bag held by a hand chuck is widened.

FIG. 7 is a side view showing a mounted state of a hopper.

FIG. 8 is a side view showing a state where a single bag is filled with Nameko from a hopper.

[Explanation of sign]

 1 Single bag suction part 2 Single bag transport part 3 Filling part 4 Seal part 5 Cylinder 6 Suction pad 7 Stock case 8 Single bag 8a Opening 9 Swing cylinder 10 Hopper 11 Hand chuck 14 Suction part 15 Suction pad 17 Mounting base 18 Hopper lift Cylinder 19 Open / close cover 21 Open / close lever 24 Air blow tube 26 Cylinder 28 Cushion mat 32 Heater

Claims (1)

[Scope of utility model registration request] 1. A single bag adsorbing section for adsorbing the opening side of the single bag, and a swing cylinder for rotating and sliding by attaching the single bag adsorbing section to the tip, and conveys the single bag to below the hopper. The single-bag transport section, the hand chucks that are movably provided at both longitudinal ends of the opening of the single bag that has been transported to the hopper by the single-bag transport section to sandwich the single bag, and the distance between the two hand chucks. A cylinder for adjusting the length of the opening of the single bag, a suction unit for adsorbing both sides of the opening to widen the opening, a lifting mechanism for the hopper, and a hopper inserted into the opening of the single bag. An opening / closing cover attached to the discharge port of the, a cover opening / closing mechanism that opens the cover as the hopper descends, a deaeration mat that is provided below the hopper and presses the filled single bag from both sides, Heat opening An automatic filling and packaging device comprising a seal portion provided with a heater for fusion bonding.