JPS61287504A - Packer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a packaging device suitable for packaging objects to be packaged, such as a bundle of vinyl bags, in a vinyl sheet.

[Conventional technology]

Previously, the applicant related to the present invention filed patent application No. 12 in 1982.
No. 8112, we proposed a packaging device that is the basis of the present invention.

The packaging device proposed earlier consists of a sheet 1~feeding mechanism that horizontally feeds a packaging sheet fed from the upper side and a wearing sheet fed from the lower side in an overlapping manner, and a feeding mechanism that feeds the overlapping sheet l~ vertically a vertical sealing mechanism that seals multiple strips to create a cylindrical body between the sealed parts; a pulling mechanism that pulls the packaged object into the cylindrical body; It is equipped with a horizontal sealing mechanism that seals the The sheet feeding mechanism includes a sheet feeding rotating body that is movable and located inside a direction changing portion of the sheet fed horizontally from above.

The operating sequence of this device is to raise the upper sheet feeding rotating body with the upper and lower sheets slightly wound up in the sheet feeding mechanism, and enter the sheet feeding mechanism from the opposite direction of the sheet feeding direction. The tip of the pulling mechanism inserted into the upper back rotating body is made to protrude to the outside through the underside of the upper back rotating body, the tip of the pulling mechanism grips the packaged object, and the lifting rotating body is moved away from the lower part in the meantime. The upper and lower sheets are drawn under each sealing mechanism, and with the drawing mechanism inserted inside, the overlapping sheets are sealed by the vertical sealing mechanism to form a plurality of cylindrical bodies, and then the above-mentioned Raise the sheet feeding rotary body upward, pull the object to be packaged into the inside of the cylindrical body using the drawing mechanism, then remove the drawing mechanism from the object to be packaged, and pull it out from the cylindrical body. Both ends of this cylindrical body are sealed by the horizontal sealing mechanism to form a bag, and the object to be packaged is sealed inside the bag.

[Problem that the invention seeks to solve]

At this time, the upper and lower seals are cut while being slightly wrapped around the sheet feeding rotor, so that the sheets can be easily fed to the bottom of each seal mechanism when used next time. However, when inserting the above-mentioned J: sea urchin drawing mechanism to the position of the packaged object through the lower side of the sea 1 to the feeding rotary body, if the sea 1 to the feeding rotary body is -147, then this Sea I is slightly caught up in the rotating body~
There is a risk that the material may hang down, get caught on the tip of the retraction mechanism, and be pushed out.

Also, when pulling the object to be packaged into the cylindrical body from the outside in the drawing-in mfS, if only the sheet feeding rotary body located at the entrance is moved upward 77, it is difficult to move the sheet on the lower side. Therefore, the upper seams 1 to 1 cannot be reliably opened, and there is a possibility that smooth retraction of the packaged items may be hindered.

The object of the present invention is to provide a mechanism for inserting a puller mechanism toward an object to be packaged through the upper seam 1 to the lower side of a feeding rotary body, and for this puller mechanism to grasp the object to be packaged inside the cylindrical body. This is to ensure that the upper seams 1 to 1 do not interfere with the drawing mechanism and the object to be packaged when the package is drawn into the bag.

[Means for solving problems]

The present invention includes a sheet 1 to feed mechanism 5 that horizontally feeds wearing sheets 1 to 3 supplied from the upper side and wearing sheets 8 supplied from the lower side, and a plurality of overlapping sheets in the vertical direction. A vertical sealing mechanism 31 that performs a strip seal to create a cylindrical body 98 between the sealed portions, a drawing mechanism 51 that pulls the object W to be packaged into the cylindrical body 98, and a cylindrical body that stores the object W to be packaged. Horizontal sealing mechanism 41.4 that laterally seals both ends of 98
2, further comprising:
The feeding mechanism 5 includes a sheet feeding rotating body 11 located inside the direction changing portion of the sheet 3 fed horizontally from above, and a sheet pushing body 81 located outside the direction changing portion of the sheet 3. It is installed so that it can be raised in one direction.

[Effect]

In the present invention, when the drawing mechanism 51 moves toward the object W to be packaged through the lower side of the upper sheet feeding rotary body 11,
When the drawing mechanism 51 grips the object W and draws it into the cylindrical body 98, the sheet feeding rotary body 11
At the same time, the sheet push-up body 81 is raised so that the upper sheet 3 does not interfere with the object W to be packaged at one end of the tip 5 of the drawing mechanism 51.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to an embodiment shown in the drawings.

As shown in FIG.
The upper vinyl sheet 3 pulled out from this sheet roll is fed to a sheet feeding mechanism 5 via a plurality of rollers 4.

Similarly, a lower sheet hanging part 6 is provided at the lower part of the apparatus frame, a sheet roll 7 is placed on this lower sheet hanging part 6, and the lower vinyl sheet 8 pulled out from the roll is rolled over a plurality of rollers 9. The sheet is supplied to the sheet feeding mechanism 5 via.

This sheet feeding mechanism 5 further includes a feeding mechanism mainly including feeding belts 11 and 12 as upper and lower sheet feeding rotating bodies positioned as an insertion opening for an object to be packaged (for example, a bundle of plastic bags) W; It consists of a feeding mechanism mainly consisting of upper and lower feeding belts 13 and 14 that are independently provided inside. Each sending bell [~11.12.13.14
are rotated by driving rollers 15°, 16, 17, and 18, respectively. Then, the upper side and the lower sea) -3,
8 is sandwiched between the rollers 19, 20, etc. located on the sides of the belts 11, 12, etc., and drawn in, and then sandwiched between the upper and lower belts 11, 12, and further pulled in by the upper and lower belts 13.
．． Send it between 14 and 14. Note that the upper feeding belt 13 inside
are provided corresponding to both side edges of the sheet.

A roller 15 around which the upper feed bells 1 to 11 are wound.
The rollers 19 and some of the rollers 4 are provided on a mounting plate 22 that is rotatable about a shaft 21 and are movable up and down. Further, the feed mechanism for the sea 1 to which the feed belts 13 and 14 are main components is installed on a mounting plate 23, and this mounting plate 23 is rotatably installed around a shaft 24 by a fluid pressure cylinder 25. . When taking out the packaged products on the bells 1 to 14, the mounting plate 23 is rotated downward by the cylinder 25 and the tip of the feed belt 14 is placed in the chute 26.
The bagged body is discharged to the shoe 1 via 26 and onto the take-out conveyor 27.

Furthermore, a vertical sealing mechanism 31 is provided on the belt 14 for vertically (feeding direction) to seal the sheets 3 and 8 that overlap horizontally in the sheet feeding mechanism 5. This vertical seal mechanism 31 has two levers 33 that are rotated by a fluid pressure cylinder 32, which rotates two levers 34, and two levers that are installed on each shaft 34. A plurality of vertical heaters 37 are moved up and down in a horizontal state via a member 36, and each vertical heater 37 heats and fuses the sheets 3 and 8 on the second and lower sides, and simultaneously fuses them. wearing part 2
Melt it into parts.

Furthermore, horizontal sealing mechanisms 41 and 42 are provided on one end and the other end of the vertical sealing mechanism 31, respectively. Each of these lateral seal mechanisms 41.42 has a guide rod 43.4, respectively.
A heater 45 for the bottom seal and a heater 46 for the top seal are provided so as to be movable up and down through the heater 4, and each heater is moved up and down by a fluid pressure cylinder 47, 48, respectively.
The upper and lower sheets 3.8 are heated and fused by each heater 45, 46, and at the same time, the fused portion is cut into two. Of the top seal portion formed by the heater 46, the fused portion on the sheet side to be used next is
By cutting and removing the sheet with the cutter 19 that moves up and down at the same time as 6, the drawing mechanism 51, which will be described next, can be inserted between the sheets to be used next. When the heater 46 and the cutter 49 are in operation, a receiving plate 52 is moved up and down between the belts 12 and 14 by a fluid pressure cylinder or the like.
supports the sheet. Further, the heater 37. A
A receiving plate (not shown) corresponding to s is also provided between the bells 1 to 14.

The drawing mechanism 51 is configured to move the packaged object W into a cylindrical body formed between the vertically fused portions of the upper and lower sheets by the vertical sealing mechanism 31.
A slider 56, which is movably provided by a guide rod 55, is connected to the front and rear sprockets 1 to 5.
The slider 56 is moved forward and backward by a chain 58 wound endlessly between the sliders 56 and 58.
An insert plate 60 having a concave cross section is fixedly supported via the insert plate 60 , and a push plate 61 is slidably provided in a groove extending over the entire length of the insert plate 60 . It is pushed forward by a pivotally supported fluid pressure cylinder 62. A square hole 63 is provided at the tip of the insertion plate 60. A leaf spring 64 attached to the lower surface of the insertion plate 60 is made to protrude obliquely upward through the hole 63, and the inclined upper surface of the leaf spring 64 is The plate spring 64 is closed by being pressed by the tip of the pushing plate 61, and the tip of the plate spring 64 and the insertion plate 6 are pressed together.
0 and the lower clamping plates 65 and 66 so as to grip the packaged object W.

A motor 71 in FIG. 1 rotates the driving rollers of the feed bells 1 to 11, 12, 13, 14 through a chain 72, etc., and a motor 73 rotates one end of the drawing mechanism 51 through a chain 14, etc. The motor 75 rotates the sprocket 57 of
The roller 77 at one end of the roller 7 is rotated.

Next, details of the sheet feeding mechanism centering on the upper feeding belt 11 will be explained based on FIGS. 2 and 3.

As shown in FIG. 2, the feeding belt 11 as the sheet feeding rotary member is used to feed the sheet 3 horizontally from above.
The L-shaped sheet pushing body 81, which is located on the inside of the direction change section from the upper side of the sheet 3 to the horizontal direction, is connected to the feed belt 11 by an attachment bar 82. The common mounting plate 22 is equipped with a

Further, an L-shaped bar-shaped sheet presser rest 83 located on the opposite side of the push-up body 81 with the sheet 3 interposed therebetween is attached to the take-up plate 22 by an attachment bar 84.

Furthermore, as shown in FIG. 2, a fluid pressure cylinder 86 is pivotally supported on a fixed support plate 85 protruding from a device frame (not shown), and the tip of a piston rod 87 of this cylinder 86 and the upper part of the mounting plate 22 are connected to each other. A fixed lever 88 is rotatably attached to the shaft.

The feed bell 1-11 is wound around the driving roller 15 and the driven roller 89, and the roller 19 is mounted on the mounting plate 22 via a mounting plate 90, and is attached to the outer surface of the belt 11 by a spring 91. press Further, the roller 89 is rotatably supported on the mounting plate 84 via a bracket 92.

Then, by pushing out the piston rod 87 of the cylinder 86, the shaft 2
The mounting plate 22 is rotated upward about 1.

As a result, the feed bells 1 to 1 provided on this mounting plate 22 are
11, the roller 19, the sheet push-up body 81, the presser body 83, etc. are integrally placed on the sheet 1.

Further, as shown in FIG. 3, the sea 1 to feed mechanism, which has the bell 1-11 as its main component, is arranged in a plurality of sets (in the figure 4 sets) will be provided.

Further, the sheets 1 to push-up bodies 81 are also provided at a plurality of locations corresponding to the belt 11. The sheet presser body 83 is arranged so that the -L side sheet 3 is sandwiched between them.

In this way, the upper seam 1-3 is sandwiched between the belt 11 and the sheet pushing body 81, or between the sheet pushing body 81 and the seams 1 to 83, so that the upper seam 1-3 can When the handle plates 22 on both sides are rotated upward at 86, the upper sheet 3 is also lifted together.

The shaft 21 is not only a pivot shaft for the mounting plate 22 but also a rotational drive shaft that transmits rotation to the shaft 93.
The rotation transmitted to the sprocket 94 at one end of the shaft 21 is transferred to the shaft 93 via a rotation transmission mechanism 95 using a chino at the other end.
to communicate.

Next, the overall operating sequence of this packaging device will be explained based on FIG.

A. The upper sheet 3 is moved between the sheet pusher 81 and the bell 1.
~ 11 or the sheet presser rest 83, these are separated from the lower feed belt 12 by the lifting action of the cylinder 86, and the belts 1 above and below
1. Insert the insertion plate 60 of the drawing mechanism 51 between the holes 1 and 12.

B. Lower the upper belt 11, etc., and lower the upper and lower belts 1.
At 1.12, the upper and lower sheets 3 and 8 of the J stiffness are sandwiched and fed, and then fed between the belts 13 and 14.

C8 The holding portions 65 and 66 at the tip of the drawing mechanism 51 grip the packaged object W, and at the same time lower the heater 37 of the vertical sealing mechanism 31 to separate the upper and lower sheets 3 and 8 in a plurality of strips in the vertical direction (in the figure). Article 4) At the same time as heating and fusing, the central part of the welded part is cut. In this way, three cylindrical bodies 98 are formed separately.

D. By raising the sheet feeding mechanism mainly including the belt 11 using the cylinder 86 and retracting the drawing mechanism 51, the object W to be packaged is drawn into the cylindrical body 98 between the upper and lower sheets.

E. Open the gripping portions 65 and 66 at the tip of the drawing mechanism 51 and pull out the drawing mechanism 51 from inside each cylindrical body 98.

F. Both end openings of the cylindrical body 98 are connected to the horizontal sealing mechanism 4
Heat-sealing and simultaneously fusing are performed using heaters 45 and 46 of 1.42 mm to separate and form three bags 99, and seal the packaged object W inside the vinyl bag. At the same time, in order to insert the drawing machine IIPi 51 between the upper and lower sheets 3 and 8 in the next step A, the heater 46 is placed near the belt 11.12.
The cutter 49 cuts off the thermally fused portion between the upper and lower sheets 3.8 fused together, thereby separating the upper sheet 3 and the lower sheet 8. 100 is a cut line made by the cutter 49. Further, both side edges 10 of the sheets 3 and 8
1 is left uncut, and the belt 13.1 is
If the sheet is held between 4 and 4, the next sheet can be fed continuously.

Next, the mounting plate 23 is moved to the shaft 24 by the cylinder 25.
The feed belt 14 is rotated diagonally downward as indicated by the chain line in FIG. This conveyor 27 takes out the liquid to the outside.

[Effects of the Invention] According to the present invention, the sheet feeding mechanism has the sheet 1 located inside the direction changing portion of the sheet fed horizontally from above.
- The feeding rotary body and the sheet 1 - push-up body located outside the direction changing portion of the sheet are arranged so as to be able to rise in one direction (
Because of this, it is possible to raise the upper sheet 1 while maintaining the state that the sheet 1 is wrapped around the lower surface of the upper sheet feeding rotor, and the drawing mechanism is passed through the underside of the upper sheet feed rotor to be wrapped. Effectively prevents the upper sheet from interfering with the pulling-in mechanism and the wrapped object when it is transferred towards the object or when this pulling-in mechanism grasps the object and pulls it into the cylindrical body. can.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing one embodiment of the packaging device of the present invention, Fig. 2 is a cross-sectional view of the main part thereof, Fig. 3 is a partially cutaway side view of Fig. 2 seen from the right side, and Fig. 4 is a cross-sectional view showing an embodiment of the packaging device of the present invention. The figure is an explanatory diagram showing the operation of this device. W...Object to be packaged, 3...Upper sheet, 5...Sheet feeding mechanism, 8...Lower sheet, 11...Feeding belt as a rotating body for sheet feeding, 31...Vertical sealing mechanism, 41.4
2...Horizontal seal mechanism, 51... Pulling mechanism, 81... Sheet push-up body, 98... Cylindrical body. −16=

Claims (1)

[Claims] (1) A sheet feeding mechanism that stacks and feeds packaging sheets fed from the upper side and packaging sheets fed from the bottom side horizontally, and seals multiple strips of the overlapping sheets in the vertical direction to form a sealing section. A vertical sealing mechanism that forms a cylindrical body between the two, a drawing mechanism that pulls the object to be packaged into the cylindrical body, and a horizontal sealing mechanism that horizontally seals both ends of the cylindrical body containing the object to be packaged. A packaging device comprising: a sheet feeding rotary body located inside a direction changing portion of the sheet fed horizontally from above in the sheet feeding mechanism; and a sheet located outside the direction changing portion of the sheet. A packaging device characterized in that a push-up body is provided so as to be able to rise integrally with the push-up body.