JPS5916244Y2 - Film cutting machine for vacuum packaging products - Google Patents

Description

[Detailed description of the invention] This invention uses a cutter to divide a packaged product made by vacuum packaging a large number of packaged items in multiple rows between two layers of upper and lower packaging materials and separating them into individual pieces. This relates to a film cutting machine for cutting.

For example, as shown in FIG.
. . . Packaging items 2 such as meat are placed in the trays, and after arranging the trays in multiple rows and columns, a plastic film 3 is placed in each of the trays 1, 1 . . . in a vacuum chamber.
In order to supply the packaged product to the market by pneumatic pressure bonding, each tray must be separated by cutting the film between each tray.

Previously, the only device that could cut this by hand was the Jikko 5.
4-536, but it has a drawback in terms of efficiency.

In view of the above points, the present invention is designed to continuously transport packaged products on an L-shaped track using two conveyor devices installed in a planar shape, and to continuously cut the film using this transporting force. In order to achieve this purpose, a first conveyor and a second conveyor, which are formed by providing attachments to endless chains, are installed on a conveyance track in plan view with guide rails provided on both sides. A plurality of guide rails for sliding the bottom surface of the formwork on which the packaged products are placed are installed in the conveyance track at positions slightly higher than both of these conveyors, and are arranged at right angles to each other. Bars are arranged above the conveyor and the second conveyor, respectively, so as to cross the conveyance track of these conveyors, and each of these bars has a plurality of cutters supported with their blades facing downward.

Embodiments of the present invention will be described below based on the drawings.

The main structure of the cutting machine of the present application is illustrated in FIGS. 1 and 2 as an embodiment.

FIG. 1 is a plan view of the machine, in which two conveyors 6.7 are arranged in an L-shape on the body 5 in plan view.

Two large and small L-shaped guide rails 8 and 9 are provided on both sides of the upper surface of the machine body 5, and the formwork carrying the packaged product a is moved between these guide rails 8 and 9 by the conveyor 6.7. It is made to be transportable.

The first conveyor 6 on one side carries a pair of left and right endless chain wheels 5a, 5a with chain wheels 11 and 11, respectively.
．． Attachments 13 and 13 are provided on both chains 6a and 6a, respectively.

More specifically, as shown in FIG. 4, two attachments 13 and 14 are provided at equal intervals for one chino 6a, and the chino 6a is connected to a brake motor 15a via a power transmission band 15.

On the other hand, the second conveyor 7 is arranged so that the pair of chains 7a, 7a are perpendicular to the first conveyor 6.
6.16.17.17, and is connected to a brake motor 21 via a power transmission band 20.

In addition, three rails 18.1 are provided parallel to the first conveyor b.
8.18, while three rails 19.19.19 are provided parallel to the second conveyor 7.

These rails 18 and 19 are both made of a low-friction material such as Teflon resin, and are fixed to the upper surface of the fuselage body 5 so as to be slightly higher than the upper surfaces of the chenos 5a and 7a.

Furthermore, an elongated bar 22 is arranged on the top of the first conveyor 6 so as to be perpendicular to the conveyance direction of the conveyor, and both ends of the bar are fixed to the body 5 via receivers 23 and 23, respectively. , a plurality of cutters 24.
24... is supported.

Furthermore, an elongated bar 25 is arranged at the upper part of the second conveyor 7 so as to be perpendicular to the conveying direction of the conveyor,
Both ends of the bar are fixed to the body 5 via supports 26, 26, and a plurality of cutters 27, 27, . . . are supported on the bar 25.

A specific example of each cutter 24, 27 is a collar 3 rotatably supported on a bar (22 and 25), as shown in FIG.
The blade 3 is attached to the tip of the body 32 fixed to the body 32 via the band 31.
While fixing the bar 2 along the collar 30,
A tension spring 37 is provided between the arm 35 of the block 34 and the arm 36 of the collar 30, which are fixed to tighten the collar 30.
It is brought into pressure contact with the stopper 38 of.

The details of the electric control circuit shown in FIG. 5 will be described in the explanation of the operation below.

In the cutting operation, first, the form frame shown in FIG. 1 is inserted between the guide rails 8 and 9 on both sides from the position shown in the figure and placed on the first conveyor 6.

By doing this, the formwork is mounted on the three rails 18.degree. 18, 18, as shown in FIG.

Next, when the starting switch 40 shown in FIG. 5 is temporarily closed, the electromagnetic coil 41 is excited, and the self-holding function of the switch 42 allows electricity to continue flowing through the circuit 43 even if the starting switch 40 is opened. , first electromagnetic coil 44
The switch 45 is closed by the excitation of the first brake motor 15a.
energize.

In FIG. 4, when the first brake motor 15a is energized and driven, the Cheno 6a of the first conveyor begins to rotate counterclockwise and the formwork plate placed thereon is moved to the attachment 13.
Push it and start transporting it.

In this case, the formwork is conveyed toward the second conveyor 7 while sliding on three low-friction rails 18, but on the way, as shown in FIG.
The film is cut between each tray 1,10.

In FIG. 4, another attachment 14 acts on the switch 46 just before the tip of the formwork being pushed and conveyed by the attachment 13 comes into contact with the guide rail 8 on the side of the second conveyor 7.

The switch 46 opens a terminal 47 and closes another terminal 48 in FIG.

Therefore, the first brake motor 15a suddenly stops and the first brake motor 15a stops.
The movement of the conveyor chain 6a is stopped, while the third electromagnetic coil 49 is energized and its relay action closes its switch 50, which energizes the second electromagnetic coil 51 and closes the switch 52, so the second brake motor 21 is driven. .

As the motor 21 is driven, the second conveyor 7 begins to rotate and begins to convey the formwork, and during the conveyance the cutter 27.2
The film is cut by 7°27.

Then, it acts on a switch 53 provided along the second conveyor 7 at a predetermined position.

In FIG. 5, when the switch 53 separates from the terminal 54, the second brake motor 21 stops, and on the other hand, the fourth electromagnetic coil 55 is energized and the switch 56 is opened, so that all operating functions are stopped.

In FIG. 3, the blade 33 is placed facing the ground at an angle of about 45 degrees, but if a force is applied from the direction of arrow C, the spring 37 will be stretched and the cutters 26 and 27 will move in the same direction as arrow C. evacuate.

Cutter 2 against conveyor vibration or contact with formwork
4.27 is retracted as described above to prevent damage to the cutting edge.

In the embodiment, the first conveyor 6 and the second conveyor 7 are provided with motors 15a and 21, respectively, but one motor is used to interlock both conveyors, and the attachment, which normally falls over, can be moved within a predetermined range. It is also possible to transport the formwork by standing it upright.

As shown in the above, the present invention includes a first conveyor 6 and a second conveyor, each of which is formed by providing an endless chain with attachments on a conveyance track in plan view with guide rails 8 and 9 on both sides. 7 are placed at right angles to each other, and the packaged products a are placed at a location slightly higher than both conveyors.
A plurality of guide rails 18 . . . 19 . Bars 22.25 are arranged above the second conveyor 7 so as to cross the conveyor tracks, and each bar 22.25 is provided with a plurality of cutters 24...27... ... is supported with the blade facing downward, and the formwork is conveyed continuously while changing direction by the two conveyors,
By simply placing the formwork carrying the packaged product on the conveyor, the packaged product is processed by the front and rear cutters 24...27.
It is possible to automatically divide vertically and horizontally by ..., and efficiently process a large amount of packaged products one after another, and furthermore, it is possible to divide a plurality of pieces into each of the two bars 22.25 on the above-mentioned transport track. Mold blocks 34 are fixed at predetermined intervals, and collars 30 arranged along these blocks are rotatably supported on the bar, and each collar is cutter 24...27...
. . , while tension springs 37 .
..., and each block 34...
A rod stopper 38 screwed into the arm of ・ is brought into contact with the adjacent collar 30 , and the spacing between each block can be adjusted by loosening the screw of the block 34 Therefore, the interval between each cutter can be arbitrarily adjusted according to the width of the tray, and the number of cutters can also be changed.If the height of the tray changes, the blade 33 can be adjusted against the film using a stopper 38 using a stripping bar. The degree of contact can be adjusted, and the blade 33 can be retracted from obstacles by the buffering action of the spring 37 to prevent damage to the blade.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of the embodiment of the present invention, Figure 2 is II of the previous figure.
-II line sectional view, Figure 3 is III-III in the previous figure.
4 is a schematic side view of FIG. 1, FIG. 5 is an electric control circuit diagram, and FIG. 6 is a perspective view of the workpiece. 6...First conveyor, 7...Second conveyor, 13...Attachment, 14...
...Attachment, 18...Rail, 19.
...Rail, 22...Bar material, 24...
... Cutter, 25 ... Bar material, 27 ...
...Cutter a...Packaged products, b...
・Formwork.

Claims (1)

[Scope of utility model registration request] A transport track in plan view is formed inside the guide rails 8 and 9 provided on both sides, and the lower surface of the formwork on which the packaged product a is placed is slid on the portion corresponding to the floor of the transport track. Separate multiple guide rails 18 for...
. . 19 . . . At the same time, a first conveyor 6 and a second conveyor 7 formed by an endless chain are installed at right angles below this original guy/trail. Attachments are fixed to the chains of each conveyor so that the attachments protrude slightly from the original guide rails, while rods are attached to the upper parts of the first conveyor 6 and the second conveyor 7 so as to cross the transport tracks of these conveyors. The rods 22 and 25 are arranged, and a plurality of split-tie blocks 34 are attached to each of these rods.
. . . are fixed at predetermined intervals, and each collar 30 arranged along each of these blocks 34 .
. . . are rotatably supported on both the bars 22, 25, and cutters 24 . . . 27 . are fixed, while tension springs 37 are provided between the arms 35 of each block 34 and the arms 36 of the adjacent collars 30. , the threaded rod stopper 38 screwed into the arm of each block 34... is connected to the adjacent collar 30...
A film cutting machine for vacuum packaged products, in which the contraction of the tension spring 37 is regulated by bringing it into contact with...