JP2893252B2 - Film packaging equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film packaging apparatus for preventing shipping goods from being damaged.

[0002]

2. Description of the Related Art A conventional film packaging apparatus is divided into a packaging part and a shrinking part.

[0003]

As described in the section of the prior art, the conventional film packaging apparatus includes a packaging section 19.
a and the contraction portion 19b are provided separately.
Since the system is passed through a shrink tunnel after packaging, the machine space is large, the heat source is also adjusted to the maximum size, and a large heater capacity is required.

[0004]

Means for Solving the Problems Above the seal shrinking part conveyor, a frame is provided on the left and right, the distance of which can be adjusted according to the object to be sealed, and the upper side covered with the upper surface of the object to be sealed is provided on this frame. A side covering guide that guides both sides of the packaging film to cover the side surface of the object to be sealed, and a side seal device that welds the both end overlapping portions of the upper and lower packaging films covering the object to be sealed as required. And a side shrinking device that shrinks the upper packaging film and the lower packaging film by blowing hot air onto the side surface of the sealed object entirely covered with the upper packaging film and the lower packaging film. Film packaging equipment.

[0005] A supply conveyor for supplying the objects to be sealed, an upper wrapping film above the transporting direction of the supply conveyor, and a lower wrapping film below the lower packaging film in a rotatable manner. A packaging film guide for guiding to the end seal portion, and welding and connecting the leading ends of the upper packaging film and the lower packaging film to the transverse end connecting portion, cutting the middle thereof, and connecting the front half transverse end connecting portion. A cross seal that divides into the second-half crossing end connection part and a seal shrinking part conveyor that connects to the crossing end seal part are provided, and a frame that is adjustable above and below is provided on the left and right so that the distance can be adjusted to the object to be sealed. A side covering guide that guides both sides of the upper packaging film covered on the upper surface of the object to be sealed on the frame to cover the side surface of the object to be sealed; A side sealing device that welds the overlapping portions of both ends of the upper and lower packaging films as required, and blows hot air to the side of the object to be sealed that is entirely covered with the upper and lower packaging films. A film packaging apparatus is provided with a side shrinking device for shrinking a packaging film and a lower packaging film.

The side seal device heats compressed air from a compressed air source with a heater to generate hot air at a required temperature, and then blows out the air within a required range with a nozzle to form an upper packaging film and a lower packaging film. May be welded as required.

The side shrinking device is provided so as to generate hot air by heating wind from a motor fan with a heater nozzle, and to blow the hot air, and a guide cover for guiding hot air for shrinkage along the upper surface of the object to be sealed. It may be attached to

[0008] A cutter is provided between the side sealing device and the side shrinking device, a middle portion between both ends of the upper wrapping film and the lower wrapping film is cut, and left and right debris ears are cut off. , The upper packaging film and the lower packaging film may be shrunk.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A supply conveyor for supplying an object to be sealed, an upper wrapping film above the transporting direction of the supply conveyor, and a lower wrapping film below the lower side are rotatably supported. And the leading end of the upper and lower packaging films are welded and connected to the transverse end connecting portion, and the intermediate portion thereof is cut off, and the first half thereof is traversed. A cross seal that divides the end connection part and the second half cross end connection part, and a seal contraction part conveyor that connects to the cross end seal part are provided. Above that, the distance can be adjusted to the left and right according to the object to be sealed. A side covering guide that guides both sides of the upper wrapping film covered on the upper surface of the object to be sealed and covers the side surface of the object to be sealed; A side seal device that welds the overlapped portions of both ends of the upper packaging film and the lower packaging film to cover the object, and blows hot air to the side of the sealed object that is entirely covered with the upper packaging film and the lower packaging film. A film shrinking device, wherein a side shrinking device for shrinking the upper packing film and the lower packing film is provided, and a cutter is provided between the side sealing device and the side shrinking device.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings. Reference numeral 1 denotes a supply conveyor on which supply guides 3, 3 which can be moved to conform to the width of the object to be sealed 2 are provided. Have been placed.

An upper wrapping film 4 is provided above the feeding conveyor 1 in the transfer direction, and a lower wrapping film 5 is provided below.
Are rotatably supported, and the leading end 4a of the upper wrapping film 4 and the leading end 5a of the lower wrapping film 5 are drawn out and guided to the transverse end seal portion 6.

A cross seal 7 is provided at the transverse end seal portion 6, and the cross seal 7 is composed of an upper blade 7a and a lower blade 7b, each of which moves up and down to move upward and downward. Each tip 4a of the side wrapping film 5,
5a is welded and connected to the transverse end connecting portion 20, and the middle thereof is cut off to divide the front half transverse end connecting portion 20a and the rear half transverse end connecting portion 20b. Although not shown, welding is performed by high-frequency melting and cutting is performed by temperature melting.

A side seal portion 8 and a contraction portion 9 are provided following the transverse end seal portion 6, a seal contraction portion conveyor 10 is arranged at the portion, and the object to be sealed 2 is placed on the side seal portion 8 and the contraction portion 9. Transfer.

The article to be sealed 2 is guided by the supply guides 3 on the supply conveyor 1 as described above, and the leading end surface thereof is connected to the upper wrapping film 4 and the lower wrapping film 5. The upper-side wrapping film 4 and the lower-side wrapping film 5 are pulled out by contacting the second-half crossing-end connecting portion 20b and being pushed out, and the seal shrinking portion conveyor 1 is pulled out.
Transfer to 0. Then, the upper packaging film 4 faces the upper surface of the sealed object 2, and
The lower wrapping film 5 faces the lower surface of the object 2 to cover the upper and lower surfaces of the object 2 to be sealed. When the object to be sealed 2 has passed through the cross seal 7, the upper blade 7a and the lower blade 7b move up and down as described above, and the upper wrapping film 4 and the lower wrapping film overlap the corresponding surfaces up and down. 5 and are welded and connected to each other to provide a transverse end connecting portion 20, and the transverse end connecting portion 20 is cut from the middle. Then, the first half transverse end connecting portion 20a seals the rear end of the sealed object 2, and the opposite second half transverse end connecting portion 20b seals the front end of the sealed object 2 to be transferred next.

Above the seal contracting section conveyor 10, a frame 11 is provided on the left and right, the distance of which can be adjusted so as to match the object to be sealed 2. The frame 11 has a side covering guide 12, a side sealing device 13, and a side contracting section. The device 14 is installed.

In the embodiment shown in FIG. 4, the side covering guide 12 guides both ends of the upper wrapping film 4 covering the upper surface of the sealed object 2 downward along the side surface of the sealed object 2. After covering the side surface of the object to be sealed 2, both ends thereof are superimposed on both ends of the lower lower packaging film 5.

The side seal device 13 heats the compressed air by a heater 13a to generate hot air at a required temperature, and then jets the compressed air to a required range with a nozzle 13b to form an upper package film 4 and a lower package film. Both ends of the film 5 are melt-bonded in a belt shape to provide a connection portion 30 at both ends.

The side shrinking device 14 blows hot air of a required temperature onto the side surface of the sealed object 2 covered with the upper wrapping film 4 and the lower wrapping film 5, and flows the hot air from the side surface to the opposite surface side. The entire package is shrunk around the sealing portion of the upper packaging film 4 and the lower packaging film 5. Although not shown, the seal contracting portion conveyor 10 includes:
A spacer may be protruded to allow hot air to flow on the seal contracting portion conveyor 10 so that the lower side packaging film 5 on the lower surface side contracts as much as possible.

As shown in FIG. 4, the side shrinking device 14 heats the air from the motor fan 14a with the heater 14b to generate hot air and blows it from the nozzle 14c. In particular, the guide cover 14d may be attached to the frame 11 to guide the shrinking hot air along the upper surface of the sealed object 2.

A cutter 15 is provided between the side sealing device 13 and the side shrinking device 14 to cut a middle portion between both ends 30 of the upper wrapping film 4 and the lower wrapping film 5. Separate 30a, 30a,
Then, the upper wrapping film 4 and the lower wrapping film 5 may be shrunk through the side shrinking device 14.

Reference numeral 16 denotes a pressing roller which correctly feeds the object 2 to be sealed from the conveyer 10 of the seal shrinking portion.
Is an adjusting motor that adjusts the left and right intervals of the frames 11, 11 in accordance with the object to be sealed 2, rotates the screw shaft 18, and moves the frames 11, 11 screwed thereto. The adjustment motor 17 can be replaced with a manual handle (not shown).

[0022]

According to the film packaging apparatus of the present invention, the packaging machine and the shrinking machine are integrated with the conventional apparatus, so that the mechanical structure is simple and the machine space is reduced to 1/2.
The package is compact because it is reduced to one-third, and the capacity of the shrinking heater is small.

[Brief description of the drawings]

FIG. 1 is a side view of a film packaging apparatus according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a plan view showing an example of arrangement of main parts.

FIG. 4 is a side view of the side seal device and the side contraction device, partially cut away.

FIG. 5 is a plan view for explaining a bonded state and a contracted state of an upper wrapping film and a lower wrapping film at the front and rear ends and both side ends thereof with an object to be sealed inside.

FIG. 6 is a plan view of a conventional film packaging apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Supply conveyor 2 Sealed object 3 Supply guide 4 Upper packaging film 4a Tip 5 Lower packaging film 5a Tip 6 Transverse end seal part 7 Cross seal 7a Upper blade 7b Lower blade 8 Side seal part 9 Shrinking part 10 Seal shrinking part conveyor DESCRIPTION OF SYMBOLS 11 Frame 12 Side coating guide 13 Side seal device 13a Heater 13b Nozzle 14 Side shrinkage device 14a Motor fan 14b Heater 14c Nozzle 14d Induction cover 15 Cutter 16 Holding roller 17 Adjustment motor 18 Screw shaft 20 Transverse end connection part 20a Front half cross end connection Part 20b Second half transverse end connection part 30 Both ends connection part 30a

Claims (5)

(57) [Claims] 1. An upper and lower frame which is adjustable above and below a seal contracting portion conveyor so as to adjust the distance between the right and left seals according to an object to be sealed. A side covering guide for guiding the side of the object to be sealed by guiding the parts, a side sealing device for welding the both end overlapping portions of the upper packaging film and the lower packaging film covering the object to be sealed, and an upper side A film packaging apparatus comprising a side shrinking device that blows hot air onto a side surface of a sealed object entirely covered with a packaging film and a lower packaging film to shrink the upper and lower packaging films. . 2. A supply conveyor for supplying an object to be sealed,
A packaging film guide section for rotatably supporting the upper packaging film above the transporting direction of the supply conveyor and the lower packaging film below, respectively, and pulling out the respective tips to guide them to the transverse end seal section; A cross seal that welds the ends of the upper packaging film and the lower packaging film and connects them to the transverse end connecting portion, cuts the middle thereof, and cuts the front half transverse end connecting portion and the rear half transverse end connecting portion, A seal contracting portion conveyor connected to the transverse end seal portion is provided, and a frame adjustable above and below is provided on the upper side of the sealed object so that the interval thereof can be adjusted to fit the object to be sealed. A side covering guide that guides both sides of the upper packaging film to cover the side surface of the object to be sealed;
A side sealing device for welding the both ends of the upper packaging film and the lower packaging film that cover the object to be sealed as required, and a side surface of the object that is entirely covered with the upper packaging film and the lower packaging film. A film packaging apparatus comprising a side shrinking device for shrinking an upper side packaging film and a lower side packaging film by blowing hot air. 3. The side sealing device heats compressed air from a compressed air source with a heater to generate hot air at a required temperature, and then blows out the air within a required range with a nozzle to form an upper packaging film and a lower side. 3. The film packaging apparatus according to claim 1, wherein the overlapping portions at both ends of the packaging film are welded as required. 4. The side shrinking device is provided so as to generate hot air by heating wind from a motor fan with a heater nozzle, and to blow the hot air, and to guide the hot air for contraction along the upper surface of the object to be sealed. 4. The film packaging apparatus according to claim 1, wherein the film packaging apparatus is mounted on a frame. 5. A cutter is provided between the side sealing device and the side shrinking device, a middle portion between both ends of the upper wrapping film and the lower wrapping film is cut, and left and right debris ears are cut off. 5. The film packaging apparatus according to claim 1, wherein the upper packaging film and the lower packaging film are shrunk through a shrinking device.