JPS6160421A - Pack sealing machine - 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 The present invention relates to a pack sealing machine that seals a so-called pack in which a lid and a container are integrated for packaging eggs, meat, and other quality products after the contents have been stored.

For example, a thin plastic-wrapped puncture case has traditionally been used for egg cartons, and its mating edges have traditionally been closed using staples, heat treatment sealing, or the like. However, the conventional closed structure had problems in that it was troublesome to open the pack, and even if it could be opened, it was difficult to get the contents out because it was closed, so the inventor first made it easier to open the pack by sealing the edges of the pack with tape. I filed an application regarding the structure. The present invention was made as a result of a series of such developments and research, and its purpose is to fold the lid of the pack in which roses are integrated with the container and close it with tape, and to also display the date of spawning and other arbitrary information. The purpose is to provide a pack seal that can automatically perform sealing work using a series of tapes.

That is, the gist of the present invention is to provide a mechanism for moving a pack consisting of a container and a lid over a certain distance, a folding mechanism for folding the lid of the pack onto the container and keeping it closed on this moving mechanism, and a mechanism for moving the pack along the moving pack. The tape adhesion mechanism involves feeding out the tape and adhering the tape to the mating edge of the lid and container, and the tape adhesion mechanism guides the tape into a generally horizontal V-shaped or U-shaped cross section along the mating edge of the lid and container. A pack seal is characterized in that it has a tapered guide and a means for adhering the tape to the mating edge, and a pack seal which has this particular invention as its main part and has a print tAm added to the adhered tape to give a predetermined indication. It is.

The present invention will be explained in detail below. In the illustrated embodiment,
1 is a thin synthetic resin pack in which the container 1a and H1b are integrally molded, 1C, 1 (j is the joint edge, 1e is the bent part of the boundary between the container 1a and Eilb, 2 is the pack 1 put together glc , move on the machine base 10 to seal with d,
gL1cA configuration, consisting of a pair of front and rear conveyors 11.12, conveyor 1j1 is in continuous operation, and conveyor 22 in the rear stage is in continuous operation.
;E Carry out absentee operation.

Reference numeral 13 denotes a driving mechanism of the conveyor 11 at the front stage, and 14 denotes a driving mechanism for the conveyor 12 at the rear stage, which is intermittently operated by a printing mechanism 9 and a cutter 9B attached thereto, which will be described later.

3 folds 1H1b of pack 1 onto 5e"Ia and keeps it closed until sealing is completed. Folding UI M4
Then, fold the semi-opening lid 1b;:':, the lever 3a,
The folding rod 3a extends obliquely from the side near the starting end of the front-stage conveyor 11 to the center near the end, and guides 1b in the direction of gradually closing it in the first half. It has an inclined guide part 3C, and the rear holding plate 3b is connected to the folding rod 3a at the terminal end of the front conveyor 11.
It is provided so as to overlap with the conveyor 12, and its rear end is delayed to the rear end of the rear stage conveyor 12.

The height between the lower edge 3d of the holding plate 3b and the conveyor 11 is approximately equal to the height of the sealed pack 1, and the front folding rod 3a
An oblique side 3e is provided on the lower surface of the pack transfer end.

4. Put adhesive tape 4a for sealing on 1c and 1d.
Tape reels 4b are placed on the sides of the pre-stage conveyor 11 next to the delusion line 1, cylindrical feed rolls 5 are placed in the tape feed position 5, and the mating edges 1c and 1 of the lid 1b and the container 1a are
After curing, the tape 4a is shaped like a horizontal V-shape (or almost a horizontal U-shape)
A tapered guide 7 and a mating edge 1 are supplied while being bent.
C, the tape 4a brought close to ld is actually joined to the edge 1.
In the illustrated embodiment, the adhesive means 8 is provided on the side of the intermittent conveyor 12 at the rear stage, and a tapered guide 7 is installed immediately before it from the front conveyor 11 to the rear conveyor 12. There is. This guide 7 is 1
)ff? a 7 a has a shape slightly curved in the bending direction, and the terminal end 7b is deformed into a horizontal V-shape (or horizontal U-shape), and the degree of bending gradually changes in the middle. (Figures 4 and 5). The adhesive means 8 has a pair of upper and lower roll-type brush-like members 8a, 8a, as illustrated in FIG. 4, and this member 8a can be adapted to the case where the seal height changes. The example shown in FIG. 5 is an alternative example of the contact means 8, and has a pair of upper and lower flat brush-like members 8b, 8b. Although not shown, if the seal height actually changes, the height of the tapered guide 7 is also adjusted.

6 is a guide rod for preventing the pack 1 from shifting, which is provided on the opposite side of the adhesive gutter groove 4 along the moving direction of the conveyor; 6a is a stay thereof; 6b is a buffer spring provided between the stay 6a and the mounting table 10;
Further, 8C indicates a pressure bonding roll disposed in a small stage of the brush-like members 8a, 8a. 9 is the above-mentioned printing section, 9a is the cutter disposed at the step of the printing section 9, 15 is the drive mechanism of the printing section 9, and 16 is the cutter 9a, which is connected to the printing section 9.
A simultaneously driven kinematic cam mechanism has 4g cams 18, 19, 20 and 21 fixed to the drive shaft 17, each cam engaging a cam ring 18a, 19a, 20a and 21a, respectively. 18b is a cam wheel 18 provided on the cutter lever 22
18C is the support shaft of the lever 22, and 19b is a cam recess that engages with a and moves the lever 22 up and down once with one rotation of the cam 18, and 19b moves the sliding lever 23 back and forth to the printing position once with one rotation of the cam 19. 19C is the support shaft of the lever 23, 20b is the cam recess that pushes down the wedge-shaped lever 24 twice with one rotation of the cam 20, 20c is the support shaft of the lever 24, and 20d is the vertical end of the lever 24. 21b is a cam convex portion that pushes up the printing part support lever 25, which forms a horizontal T-shape, to the printing position once with one rotation of the cam.
21c is a support shaft of the lever 25. 26 is a printing member suspended from the tip of the 1 learning lever 23 via a spring 27;
Reference numeral 8 indicates an ink fountain provided at the lower position rI'f of the member 26, and reference numeral 29 indicates a stamp receiver provided at the tip of the support lever.

L'/1-a) ISI9f, ν(-mo^LS79-P,
Ifh ball 4'FMha 1 person', Irel, -;L When the V1 pack 1 is placed on the front conveyor 11 with the contents stored, the half-open lid is opened while being moved by the front stage conveyor 1 which operates continuously. 1b is the inclined guide part 3 of the lunch lever 3a.
c gradually bends in the closing direction, and the front conveyor 11
By moving past the oblique side 3e of the presser plate 3b facing the end of the conveyor 1, it is kept in a substantially completely closed state, and the rear conveyor 1
Trying to move to 2. When the pack 1 with the ilb closed reaches the front end of the rear stage conveyor 12, the sensing switch 12a detects the entry of the pack 1 and starts the rear stage conveyor 12, which had been stopped until then, so that the pack 1 is restarted. Start moving, and at the same time, attach the tip of tape 4a*:7 to Pf'40-ru 8b only at the beginning, or glue it to the front end of mating edge 1C11d of pack 1 and press J5 <, and then start moving pack 1. The tape 4a, which is close to the top and bottom of C11d, comes into contact with the mating edges 1c and 1d while passing through the brush-like member 88, and further pressure is applied to the roll 8.
b, and sealing with the adhesive tape 4a is completed, after which the subsequent conveyor 12 stops. The leading end reaches the printing mechanism 9 at the subsequent stage, and the printing mechanism 9 is activated when the conveyor 12 stops, and when the drive mechanism 15 is activated, the 4UA cams 18, 19, 2 are activated while the drive shaft 17 rotates once.
0 and 21, their engaging cams N18a to 21a, and the levers 22 to 25 operate in conjunction, thereby marking the date and other markings on the tape surface, and immediately thereafter cutting the tapes of the preceding pack and the following pack. However, by setting the cutting position slightly forward of the front end of the pack 1, a tab piece 4c protruding from the pack is formed, which becomes a catch for the peeling cylinder finger, which is a disadvantage.

Note that the adhesive tape 4a is pulled out as the pack 1 moves and the sealing progresses, but a constant speed and a constant pulling force are maintained by applying appropriate resistance with the feeding roll 4b, etc. This will ensure stable adhesion. Also, depending on the pack 1, there are lifting platforms that tend to separate due to deformation after molding even if the mating edges 1c and 1cl are in a completely closed state. It is also possible to provide a member that pulls up the edge 1C to facilitate sealing in alignment with the upper mating edge 1d.

Therefore, according to the present invention, while the lid of a pack whose lid is integrated with the container is folded in by the folding means and kept in a closed state, the tape is adhered to the mating edge of the lid and the container by the adhesive mechanism, and furthermore, the tape is stamped with a date. It has the effect of being able to automatically perform a series of operations such as stamping and cutting other markings, and since it is equipped with a tapered guide as a tape contact, the flat tape can be gradually cut into a cross section approximately horizontal V. It can be deformed into a letter shape and adhered to the mating edges of the pack, and therefore the tape can be guided and bonded smoothly to the mating edges.

[Brief explanation of drawings]

The drawings show an embodiment of the pack sealing machine according to the present invention, in which Fig. 1 is a side view, Fig. 2 is a plan view, Fig. 3 is a perspective view of the folding and paving mechanism, and Fig. 4 is a taper. FIG. 5 is a perspective view of a modified example of the same as above; FIG. 60 is a side view of the lateral portion of the printing machine; FIGS. 7, 8, and 9
The figure is a front view of each cam, and FIG. 10 is a perspective view of the pack that has been sealed and stamped. DESCRIPTION OF SYMBOLS 1... Pack, 2... Moving mechanism, 3... Folding mechanism, 4... Adhesive mechanism, 7... Tapered guide, 8...
... Adhesive means, 9... Printing mechanism, 9a... Cutter. Patent applicant: Uchinami Co., Ltd.
Kiyomasa Co., Ltd., -21,- Agent: Patent attorney Mukai Izawa, Xl-;-

Claims (5)

[Claims] (1) A mechanism that moves a pack with an integrated container and lid over a certain distance, a folding mechanism that folds the pack lid onto the container and keeps it closed on this moving mechanism, and a lid that feeds out the tape along the moving pack. and a mechanism for adhering the tape to the mating edge of the container. A pack sealing machine characterized in that it has means for adhering a tape to the mating edge. (2) The pack sealing machine according to claim 1, wherein the moving mechanism comprises a pair of front and rear conveyors. (3) The pack sealing machine according to claim 1, wherein the adhesive means of the tape adhesive mechanism includes a brush-like member that presses the adhesive area. (4) A mechanism that moves a pack with a container and lid integrated over a certain distance, a folding mechanism that folds the pack lid onto the container and keeps it closed on this moving mechanism, and a lid that feeds out the tape along the moving pack. and a mechanism for adhering the tape to the mating edges of the container and a printing mechanism for marking the adhesive tape in a predetermined manner. A pack sealing machine characterized by having a tapered guide for guiding the tape into a U-shape and means for adhering the tape to the mating edge. (5) The pack sealing machine according to claim 4, wherein the printing mechanism has a cutter that cuts the tape in conjunction with the printing lever.