JPS6181916A - Method of clamping article in drum packaging of article - 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] Purpose of the Invention (Field of Industrial Application) This invention relates to a method for reliably tightening an article with a wrapping material in body wrapping in which the article is wrapped with a wrapping material such as a packaging film or binding tape. It is.

(Prior Art and Problems to be Solved by the Invention) Conventional 1 For example, in wrapping an item using a packaging film,
When an item is wrapped in a packaging film, both ends of the packaging film are clamped and connected using sealing members, but if there is any looseness between the item and the wrapping film, the wrapping may There is a risk that the product may fall out of the openings at both ends of the wrapped packaging film, and the packaging may deteriorate (1
)is.

Structure of the Invention (Means and Effects for Solving the Problem) The method according to the present invention has been made in view of this problem, and as shown in the drawings of the embodiment described later, the article W is wrapped in a packaging material F. Both ends F1. Before the F2 side is clamped and joined by the seal members 3 and 22, the ends E1 and F2 of this packaging material F are pulled back and the item W is tightened by the packaging material F.

(Example) Hereinafter, an example in which the method according to the present invention is applied to body wrapping of an article using a packaging film will be described with reference to the drawings.

Regarding the fixed side seal cutting member 1 in the initial state of operation shown in FIGS. 1 and 2, a fixed seal plate 3 with a heater size of 1 inch is fixed to the bottom I1111 of the fixed base 2, and the same seal facing the packaging part S is attached. The tip of the plate 3 is used as a clamping portion 3a. An arm 5 is supported on the fixed seal plate 3 by support parts 4 protruding from both left and right sides of the fixed base 2 so as to be tiltable in the vertical direction by a support shaft 6. A fixed side clamping roller 7 is supported via a clutch 8 on one side so as to be rotatable only in the direction of arrow A in FIG.
Engagement rollers 9 are supported on the outside of each. Leaf springs 10 are fixed to both left and right sides of the fixed base 2, and are engaged with engagement rods 11 installed between the two arms 5 between the fixed base 2 and the clamping roller 7. Due to the urging force of the leaf spring 10, the clamping roller 7 is always brought into contact with the clamping portion 3a of the fixed seal plate 3. Between the fixed seal plate 3 and the clamping roller 7, the fixed seal plate 3
A slide plate 12 is placed above M, and is attached to this slide plate 12 along the clamping roller 7 (the suspended saw blade 13 faces the abutting portion between the fixed seal plate 3 and the clamping roller 7). Both left and right ends of this slide plate 12 are connected to both arms 5.
Holes 12a are formed at both ends of the hole 12a. Rotating shaft 14 installed above the clamping roller 7
As shown in FIGS. 2 and 8, rods 15 are removed from the outside of both arms 5 so as to extend downward, and an L7 rod 16 fixed to the rods 15 is attached to the slide plate 12. is inserted into the hole 12a. As shown in FIGS. 11, 12, and 14, when the rod 15 tilts as the rotation shaft 14 rotates, the L7 rod 1
6, the slide plate 12 and the saw blade 13 connect to the clamping roller 7.
It moves on the fixed seal plate 3 so as to move toward and away from the fixed seal plate 3.

Regarding the movable seal cutting member 17 in the initial state of operation shown in FIGS. 1 and 2, a substrate 20 is fixed to the upper ends of the pair of left and right movable levers 18 via a bracket 19, and the substrate 20 facing the packaging section S 20 is a pushing part 21, and this pushing part 21 has a cutting groove 21a extending in the left-right direction.
is formed. The lower housing 120 of this board 20
A movable seal Fi 22 is supported by a compression coil spring 23 so as to be urged toward the packaging section S, and the substrate 2
The tip portion of the movable seal plate 22 adjacent to the push-in portion 21 of No. 0 is used as a clamping portion 22a. A support plate 24 is supported in the housing chamber 20b on the upper side of the substrate 20 so as to be biased toward the packaging part S by a compression coil spring 25. A movable side clamping roller 26 is installed on the movable side. In addition, the movable seal plate 2
The second clamping part 22a projects further toward the packaging section S than the pushing part 21 of the substrate 20 and the movable clamping roller 26. Board 2
Guide rods 27 are provided on both left and right sides of the board 20 so as to extend toward the packaging section S, and as shown in FIG.
is formed. Engagement pins 28 are protrudingly provided on both left and right sides of the movable seal plate 22 in proximity to the clamping portions 22a thereof.

Between the movable seal cutting member 17 implanted in this way and the fixed seal cutting member 1, a pair of left and right movable seal cutting members located below the movable seal cutting member 17 in the initial state of operation shown in FIG. A support rod 30 is fixed to the upper end of the lever 29 so as to be inclined toward the packaging section S, and a guide roller 31 is installed between the upper ends of both support rods 30 above the movable seal cutting section 'vi17. A foil-shaped presser slope 33 is rotatably supported by a support shaft 32 installed between both support rods 30 below the movable seal cutting member 17, and a spring (not shown) is supported in the direction of arrow B in FIG. ) and is close to the movable seal cutting member 17.

A film winding roll 35 is attached to a mounting shaft 34 installed diagonally above the movable seal cutting member 17, and a pulley 36 fixed to this mounting shaft 34 is connected to a forward and reverse rotating electric motor 38 via a belt 37. is linked to. The packaging film F pulled out from the take-up roll 35 is guided above the movable seal cutting member 17 via the intermediate [1-ra 39 and the guide roller 31] in the initial state of operation shown in FIG. One end portion F1 is held in the fixed seal cutting member 1 between the clamping portion 3a of the fixed seal plate 3 and the fixed clamping roller 7. Since this fixed side clamping roller 7 is supported via the one-way clutch 8, the one end portion F1 is handled in the handling direction (the direction of the arrow opposite to A).
without rotating, and the one end portion F1 is securely held.

The pivot @ 40 installed below the packaging section S has a temporary receiver 41.
is supported and is tilted above the ejector 42 at the initial operating position shown in FIG. This receiving plate 41 is the first
As shown in FIGS. 1 and 14, it tilts in the vertical direction as the rotation shaft 40 rotates.

Both movable levers 18 and 29 are moved by a disc cam (not shown) at their lower ends, and the movable lever 29 and 18 are fixed until they abut against the stopper 29a and the movable lever 18, respectively. It approaches the side seal cutting member 1, and then returns to the initial operating position shown in FIG. 1 for a distance fJ1. Rotation fqh 14 of the fixed side seal cutting member and the pivot shaft 4 of temporary 41
0 can also rotate in conjunction with this disc cam. The electric motor 38 is rotated in forward and reverse directions by a limit switch (not shown) that is turned on and off as the disk cam rotates.

Now, from the initial operating state shown in Fig. 1, first the electric motor 3
8 is rotated in the forward direction for the time set by the timer, and the packaging film F is pulled out from the take-up roll 35 by a desired size corresponding to the item W. The packaging film F hangs down in a concave shape between the fixed side seal cutting member 1 and the guide roller 31, and the article W is thrown into this concave portion. When both movable levers 18 and 29 move closer to the fixed seal cutting member 1 as shown in FIG. 3, the movable seal cutting member 17, guide roller 31, and presser plate 33 also move.

Furthermore, when both movable levers 18, 29 move, only one movable lever 29 moves to the stopper 29, as shown in FIG.
a, the guide roller 31 and presser plate 33 come close to the fixed-side holding roller 7 of the fixed-side seal cutting member 1 and stop.

If only the other movable lever 18 continues to move,
As shown in FIG. 5, the presser holder 33 is pushed downward (in the direction of arrow B) by the movable seal plate 22 of the movable seal cutting member 17 against the urging force, and the packaging film Ff is
1m contact. In synchronization with this, the electric motor 38 is reversely rotated, and the packaging film is pulled back to the take-up roll 35.
The packaged product W is lifted upward by the packaging film F. Next, the movable seal plate 22 of the movable seal cutting member 17 continues to move past the upper side of the presser plate 33, and the presser temporary 33 is further tilted downward to press the item W.
prevent upward movement. At this time, the electric motor 38 continues to rotate in the reverse direction, the packaging film F is pulled back, and the item W is
Tighten.

After that, as shown in Figs. 6 to 8, the fixed side seal is cut [
Attach the movable side seal face member 17 to the fixed seal temporary 3 of the place member 1.
When the movable seal plates 22 come into contact with each other, their clamping portions 3a
, 22a sandwich the one end F1 and the joint end F2 of the packaging film F.

The electric motor 38 is rotated in the reverse direction until just before this clamping, and the wrapping film F is continuously pulled back to tighten the article W.

Furthermore, when the movable lever 18 moves, the movable side seal cutting portion (the 17th movable seal root 22) is biased by the compression coil spring 23 while maintaining contact with the fixed seal plate 3 of the fixed side seal cutting member 1. The movable side holding roller 26 of the movable seal cutting member 17 resists the urging force, and after a little delay from the contact between the fixed seal plate 3 and the movable seal plate 22. the fixed side clamping roller 7 of the fixed side seal cutting member 1, and the joint end F2 of the packaging film F is clamped between them. 27 engagement slope 2
7a comes into contact with both engaging rollers 9 of the fixed-side seal cutting member 1, and both guide rods 27 lift both engaging rollers 9 together with the fixed-side clamping roller 7 upward against the bias of the temporary spring 10. As shown in FIGS. 9 and 10, the pushing part 21 of the movable seal cutting member 17 is connected to the clamping part 3a of the fixed seal plate 3.
and the fixed side clamping roller 7, the movable lever 18
When the movable seal cutting member 17 comes into contact with the stopper 18a, the movable seal cutting member 17 is suspended. In this state, the joint end F2 of the packaging film F is bent into a U-shape by the pushing part 21,
The packaging film [one end F1 and the connecting end F2 are loosely interposed between the holding part 3a and the pushing part 21 of the fixed sealing plate 3, and the fixed picture holding roller 7 and The joint end F2 of the packaging film is clamped between the pushing part 21. The packaging film is sandwiched between the clamping part 3a of the fixed seal plate 3 and the clamping part 22a of the movable seal plate 22 by overlapping with each other. One end F1 of F and the connecting end F2 are fixed by a fixed sealing plate 3 with a heater while being clamped.
are fused together by the heat.

Next, as shown in FIGS. 11 and 12, when the rod 15 tilts as the rotation shaft 14 rotates and the slide plate 12 approaches the push-in part 21, the saw blade 13 moves into the notch of the push-in part 21.
The joint end F of the packaging film F is inserted into the gi groove 21a.
2 is cut there. 1. Before this cutting, the receiving plate 41 is tilted downward and connected to the discharge plate 42. During this cutting, the lower end of the rod 15 comes into contact with the engagement pin 28 of the movable seal plate 22, and the movable seal plate 22 resists the bias of the compression coil spring 23 and sinks into the accommodated 2 Oa, thereby sealing the fixed seal. There is a slight separation between the clamping part 3a of the plate 3 and the clamping part 22a of the movable seal plate 22, and as shown in FIG.

After the wrapping is completed, the movable levers 18, 29 operate in the exact opposite manner to the above-mentioned case, and the movable seal cutting member 17, guide roller 31, and presser plate 33 return to the initial operating state shown in FIG. 14.

Although a packaging film was used in the embodiments described above, the present invention can also be applied to a case where a tape is used instead. In this case, bind both sides of the item with tape. Furthermore, in the embodiment described above, the saw blade 13 is made immovable relative to the fixed seal plate 3, and the cutting groove 21 of the pushing part 21 is
a may be pushed into this saw blade 13.

Effects of the Invention In short, according to the present invention, when the product W is wrapped in the packaging material F and the packaging material F is held at both ends F1 and F2 by the sealing members 3 and 22, the product W and The article W is securely tightened without any loosening between it and the wrapping material F wrapped around it, so that there is no fear of the article W falling out from the wrapping material F wrapped around it, and a good packaging condition is obtained.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view showing the initial operating state of the product body wrapping device, FIG. 2 is a schematic plan view, and FIGS. 3, 4, 5, 6, 9, and Figure 11 # = Soshita = is a schematic cross-sectional view showing the packaging action of the same device;
7 is a partially enlarged sectional view of FIG. 6, FIG. 8 is a partially enlarged side view of FIG. 6, FIG. 10 is a partially enlarged sectional view of FIG.
FIG. 2 is a partially enlarged side view of FIG. 11, FIG. 13 is a perspective view showing an article wrapped in a body wrap, and FIG. 14 is a schematic sectional view showing the state of the same device after wrapping. Fixed side seal cutting member 1, fixed seal plate with rotor (,
Seal member) 3, arm 5, fixed side clamping roller (clamping member) 7, one clutch 8, engagement roller 9, slide plate 1
2. Saw blade (cutting blade 13, rod 15, movable seal cutting member 17, pushing part (pushing member) 21, movable seal plate (sealing member) 22, movable side holding roller (holding member)
26, guide rod 27, engagement pin 28, guide roller 31
, a press plate 33, a film winding roll 35, a forward/reverse rotating electric motor 38, a packaging film F, one end F1, a joining end F2, and an article W.

Claims (1)

[Claims] 1. With the product (W) wrapped in the packaging material (F), both ends (F1, F2) of the packaging material (F) are held between sealing members (3, 22) before joining. This packaging material (F
1. A method for tightening an article in trunk wrapping for an article, characterized in that the article (W) is tightened by a wrapping material (F) by pulling back the ends (F1, F2) of the article (F1, F2).