JPS6144961Y2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention The present invention provides primary folding flaps 103, 10 on one opposing edge of the opening 102, as shown in FIG. 1a.
3a, and the other side is provided with secondary folding flaps 104, 104a on the opposite edge, and a welding line 112 attached to the mouth part 102 is attached to the bag mouth of a flexible bag 111 such as an aluminum foil bag with an interior. A secondary folding flap 104 is provided at both ends of the melt-sealed wire 112.
Triangular folded ears 113, 11 shorter than 104a
3a to the secondary folding flaps 104, 104a.
For the box-shaped case 101 formed on each inner surface of the
from the left and right sides of the mouth part 102 in the corresponding direction, and fold the secondary folding flaps 104, 104a into the mouth part 102.
Pertaining to an automatic folding device for opening flaps of a box-shaped case, which automatically bends the mouth flaps of a box-shaped case at a substantially right angle outward from the left and right sides opposite to the folding ears 113, 113a while being transferred by an intermittent transfer mechanism; The purpose of this is to fold the primary folding flaps 103, 103a into the opening 102 after automatic folding, and as shown in FIG. An object of the present invention is to provide an apparatus capable of performing automatic bending suitable for sandwiching and gluing.

Embodiment An embodiment of the present invention will be described with reference to FIGS. 3 to 5.

In the figure, reference numeral 1 denotes a packaging table. As shown in FIG. 4, intermittently running endless chains 4, 4a are hung on a driving chain wheel 2 and a driven chain wheel 3 provided at both ends in the longitudinal direction. Multiple pairs of pushers 5, 5a protruding from grooves 6, 6a in the packaging table 1 are provided at regular intervals on each chain 4, 4a.

Guide rails 7 and 7a support and guide the upper running portions of the endless chains 4 and 4a at the lower portions of the grooves 6 and 6a. The endless chain and the pusher mentioned above are an example of the intermittent operation transfer device of the present invention, and the pushers 5 and 5a are sequentially moved to the receiving position, the second to fifth stop positions, ..., and the final stop position (). Stop at.

At the receiving position, a supply path 8 perpendicular to the running direction of the chains 4, 4a is provided in a three-pronged relationship. From the supply path 8, a supply device 9 is installed which feeds one box-shaped case 101 as shown in FIG. 1A each time the endless chains 4, 4a and the pressers 5, 5a stop. The box-shaped case 101 has the assembled shape shown in FIG. Supply device 9 provided in supply path 8
are optional, but for example, the front and rear guide rollers 10,
A feed belt 11 is provided at 10', the upper surface of which is in contact with the primary folding flap 103, and the lower surface of the box-shaped case 101 is brought into contact with a number of tandem rollers (not shown).

On one side along the outside of one of the endless chains 4 of the transfer device using the endless chains 4, 4a, etc., from the front side of the above-mentioned feeding device 9 to the second stop position,
Primary folding flaps 1 at the top and bottom of the box-shaped case 101
Secondary folding flap 1 within the spacing of 03, 103a
04, 104a is provided, and the third
At the stop position, the folding flaps 113, 113a on both sides are folded inward in front of the opening 102, and the secondary folding flaps 104, 104a on both sides are folded outward, respectively, to the state shown in FIG. 2. A processing device 13 is provided, and a folding ear 113 is provided at the fourth stop position.
113a and secondary folding flaps 104, 104a
A second leveling plate 14 is provided to maintain the processed state of the flap folding device 13, and between the fourth stop position and the fifth stop position, the lower primary fold flap 103a is folded into the opening portion 102. The lower flap bending rod 15 is bent at a right angle so as to hit the
from the fifth stop position to the final stop position ()
Just before the upper primary folding flap 10
Fig. 1c
An upper flap bending rod 16 is provided which is bent at right angles to the mouth portion 102 as shown in FIG.

On the outside of the endless chain 4a, there are provided an abutment plate 18 corresponding to the receiving position and a guide plate 19 on the bottom surface of the box-shaped case 101 from the second stop position to just before the final stop position ().

As shown in detail in FIG. 5, the flap folding device 13 has a pair of guide pieces 51, 51 fixed on the packaging stand 1, at the front and rear parts thereof, in the running direction of the endless chains 4, 4a. The parallel first sliding shaft 53 and second sliding shaft 52 are inserted.

The first sliding shaft 53 has a guide piece 51 on the right side in FIG.
A first block 60 is fitted and fixed immediately to the left of the guide piece 51, and the block 60 is fitted to the second sliding shaft 52 so as to be freely slidable, and a connecting portion 59 is provided at the right end protruding from the guide piece 51.

A second block 55 is fitted and fixed to the second sliding shaft 52 immediately to the right of the guide piece 51 on the left side in FIG.
The block 55 is slidably fitted onto the first sliding shaft 53, and a connecting portion 54 is provided at the left end protruding from the guide piece 51.

The block 60 of the first sliding shaft 53 has an opening 102 between the upper and lower primary folding flaps 103, 103a of the box-shaped case 101 moving to the third stop position.
and bend 62 to the left in Figures 3 and 5.
The first actuating piece 61 is fixed, and the upper edge of the bend 62 is formed with a notch 63 through which a presser piece 58 (to be described later) can be inserted freely. A second actuating piece 56, which approaches the opening 102 and has a bend 57 to the right in FIGS. 3 and 5, is fixed to the block 55 of the second sliding shaft 52 as described above. A presser piece 58 is provided that protrudes to the right from the upper part of the curve 57. Also,
As shown in FIGS. 3 and 4, a pair of reversible rotation shafts 65 and 64 are projected onto the packaging table 1, and a first lever 68 fixed to the one reversible rotation shaft 65 is connected via a link 69. Connection portion 59 of first sliding shaft 53
A second lever 66 connected to the other reversible rotating shaft 64 is connected to the second sliding shaft 5 through a link 67.
It is connected to the connecting portion 54 of No. 2.

As shown in FIG. 4, the reversible rotation shafts 65 and 64 are controlled to rotate reversibly by cams 71 and 70 separately, and are connected to the first and second sliding shafts via a first lever 68 and a second lever 66. 53, 52 and the first actuating piece 61,
The movement of the bends 62 and 57 of the second actuating piece 62 is controlled.

To explain the operation of the embodiment, the box-shaped case 101 assembled as shown in FIG.
The box-shaped case 10 is sent to the receiving position by the following intermittent drive of the endless chains 4, 4a.
1 is sent to the second stop position, the leveling plate 12
As a result, the right side secondary folding flap 104 and the folding lug 113 are folded into the front surface of the opening 102 at the rear in the transport direction as shown in FIG. be defeated. When the box-shaped case 101 stops at the third stop position, the flap folding device 13 converts the fold 57 in the original position to the left fold 57, which is tilted backward in the transport direction as described above, as shown in FIG. 6a. It is brought into contact with the end of the secondary folding flap 104a, and positioned slightly to the left (rearward in the transport direction) of the folding lug 113a. The bend 62 of the first actuating piece 61 is formed by the box-shaped case 10.
It is located to the right of the stop position in step 1, and that position is the original position. At the same time as the box-shaped case 101 stops, the fold 62 in the original position is moved slightly to the left of the secondary folding flap 104 as shown in FIG. position, and then bend 57 as shown in Figure 6c.
moves to a position where it contacts the inner surface of the secondary folding flap 104a and is a little to the right from the left end of the mouth 102, bends only the right folding lug 113a in front of the mouth 102, and presses the right side with the presser piece 58. Fold the secondary folding flap 104 to the right (forward in the transport direction).

At the same time that the holding piece 58 causes the above-described operation, the fold 62 slides on the inner surface of the secondary folding flap 104 and moves to the position shown in FIG. d in the same figure
At that time, the recessed part 63 passes through the presser piece 58 in a differential manner, and as it moves, it is folded down in front of the mouth part 102 of the right folding lug 113. At this time, the box-shaped case 101 stops intermittently at the stop position and is transferred in the transfer direction, and the fold 62 returns to the original position at the same speed as the transfer. The bend 57 also returns to its original position. (See Figure 6a) When the box-shaped case 101 is transferred from the fourth stop position to the fifth stop position, the lower primary folding flap 103a is closed by the lower flap bending rod 15.
overlaps the folded ears 113, 113a and the mouth part 102
Then, the upper primary folding flap 103 is folded downward by the upper flap folding rod 16. (See Fig. 1c) The device of the present invention has primary folding flaps 103, 103a of the box-shaped case 101 as upper and lower sides, secondary folding flaps 104, 104a, and the box-shaped case 10.
Fold-in ears 113,1 of flexible bag 111 inside 1
The first sliding shaft 53 and the second sliding shaft 13a, which are parallel to the transport direction and move in relation to each other, are fed to a transport table that moves intermittently in front of and behind the transport direction, and at one stop position of the box-shaped case 101. A moving shaft 52 is provided, and the first sliding shaft 53 is provided with a box-shaped case 10 between the upper and lower primary folding flaps 103, 103a.
By the time the flap 1 stops at the stop position, the secondary folding flap 104 which has been bent backward in the conveying direction and the folding tab 63 whose original position is a position that is removed from the folding ear 113 in the forward direction in the conveying direction is made almost perpendicular to the rear in the conveying direction. The bent first operating piece 61 is connected to the second sliding shaft 5.
2, upper and lower primary folding flaps 103, 103a
The folding ears 113 are bent rearward in the transport direction before the box-shaped case 101 stops at the stop position.
A second actuating piece 56, which is provided by bending a bend 57 rearward in the transport direction from a and having its original position in contact with the inner end of the secondary folding flap 104a, at a substantially right angle forward in the transport direction, is connected and folded. At the upper part of the bent front end of the bend 57, a presser piece 58 is provided in an extended shape to push the inner surface of the secondary folding flap 104 forward in the transfer direction as the second sliding shaft 52 moves forward in the transfer direction. A notch 63 is provided in the above-mentioned bend 62 through which the presser piece 58 is passed through in a staggered manner without interfering with the holding piece 58.
is provided on the upper edge, and the box-shaped case 1 is attached to the first sliding shaft 53.
01 is stopped, the bending 62 of the first actuating piece 61 is moved rearward in the transport direction from the original position until it disengages the second folding flap 104, and then the second sliding shaft 5
2 moves to the position of the inner tip of the secondary folding flap 104 which is bent forward in the transport direction by the presser piece 58, and from this position the folding tab 113 is bent backward in the transport direction and folded. ear 1
The first lever 68 is moved to a position where it does not come off from the box-shaped case 101, and the first lever 68 is moved from this position to the original position.
The bend 57 of the actuating piece 56 is moved forward in the transfer direction from the original position, and at the same time, the holding piece 58 is folded into the secondary folding flap 104 by the synchronized movement with the first sliding shaft 62.
It has a structure in which a second lever 66 is connected to move the bending section 57 to a position where it is bent forward in the transport direction, and then move the bending section 57 itself to its original position, which produces the effect that has been made clear through the explanation of the embodiment. As shown in FIG. 7, after the folding is performed using the device of the present invention, the primary folding flaps 103, 103 are further folded into the mouth portion 102, and the secondary flaps 104, 104a are thereby freed. This has the effect that a preliminary folding suitable for sandwiching and fixing the bonus box case 120 can be easily performed.

[Brief explanation of the drawing]

Figure 1a shows a box-shaped case 10 that houses a flexible bag.
1, FIG. 1b is a partially cutaway perspective view showing the folding process in progress, FIG. 1c is a perspective view with the primary folding flaps 103 and 103a folded in, and FIG. A perspective view showing the final bending by the invented device, Figures 3 to 5 show an embodiment of the present invention, Figure 3 is a plan view, Figure 4 is a front view cut along the line A-A in Figure 3,
Fig. 5 is a perspective view of the flap folding device, Figs. 6 a to d are explanatory diagrams of the operation of the flap processing device of Fig. 5, and Fig. 7 shows clamping and fixing of the bonus box case with the box-shaped case. FIG. 4, 4a... Endless chain, 13... Flap processing device, 53... First sliding shaft, 61... First operating piece, 62... Bending, 63... Notch, 52... Second
Sliding shaft, 56...Second operating piece, 57...Bending, 5
8... Presser piece, 68... First lever, 66... Second lever.

Claims (1)

[Claims for Utility Model Registration] Primary folding flaps 103, 103a are provided on one opposing edge of the opening 102, and secondary folding flaps 104, 104a are provided on the other opposing edge, and an internal flexible flap is provided. A welding line 112 along the opening 102 is provided at the bag opening of the bag 111, and secondary folding flaps 104, 104a are provided at both ends of the welding line.
Regarding an automatic packaging device for a box-shaped case 101 in which the shorter triangular folding ears 113, 113a are in contact with the respective inner surfaces of the secondary folding flaps 104, 104a, stopping the box-shaped case 101 on a transfer table that performs intermittent transfer. A leveling plate 12 for bending the secondary folding flap and the folding tab rearward in the transport direction is provided between the positions, and a first sliding shaft 53 that slides parallel to the transport direction and a second sliding shaft are located at the stop position. 52, and the first sliding shaft 53 has a secondary folding flap 104 which is bent rearward in the transport direction between the upper and lower primary folding flaps 103, 103a until the box-shaped case 101 stops at the stop position. and folded ears 1
A first actuating piece 61 is connected with a first actuating piece 61 provided with a bend 62 whose original position is forward in the transfer direction from 13, and the bend 62 is bent at a substantially right angle rearward in the transfer direction, and a notch 63 is formed on the upper edge. The second sliding shaft 52 is provided with a folding tab 113a which is bent rearward in the transport direction between the upper and lower primary folding flaps 103, 103a until the box-shaped case 101 stops at the stop position. A second actuating piece 56 is provided with a bend 57 whose original position is a position that is displaced rearward in the direction and touches the end of the secondary folding flap 104a.
The bend 57 is bent at a substantially right angle forward in the transport direction, and the second sliding shaft 5 passes through the notch 63 of the bend 62 at the upper part of the front end of the bend.
2, the presser piece 5 presses the inner surface of the secondary folding flap 104 forward in the transport direction.
8 is provided in an extension shape, and when the box-shaped case 101 stops, the bent 62 of the first actuating piece 61 is moved rearward from the original position in the transport direction, and the second sliding shaft 52 is synchronized. As a result of the movement, the holding piece 58 moves to the position of the inner surface tip of the secondary folding flap 104 which is bent forward in the transport direction, and from this position, the folding lug 113 is bent rearward in the transport direction and the folding lug 113 is bent forward in the transport direction. The first lever 68 is moved backward in the transfer direction to a position where it does not come off, and is moved from this position to the original position. 57 from the original position forward in the transport direction, simultaneously moving the presser piece 58 to a position where the secondary folding flap 104 is bent forward in the transport direction, and connecting a second lever 66 for moving it from this position to the original position; An automatic folding device for opening flaps of a box-shaped case with a flexible bag inside, characterized by: