JPS5840009Y2 - Seal cutting mechanism safety device for filling and packaging machines - Google Patents

Description

[Detailed Description of the Invention] The present invention mainly relates to a filling and packaging machine for packaging foods into plastic bags, and particularly to a seal cutting mechanism safety device for the packaging machine.

This type of packaging machine suspends a vinyl cylindrical body containing foods and welds and cuts the upper part of the contents, but the rotation of the cam causes the blade and its receiving plate to attach to the vinyl cylindrical body. Since the knife moves reciprocally, approaching from the left and right, there was a risk of being cut off by the blade if the tip of a finger accidentally got between them.

The present invention was proposed for the purpose of solving the above-mentioned conventional defects.

Therefore, the present invention is a filling and packaging machine of the type in which food, etc. is stored in a long vinyl sheet cylindrical body 1 and the upper part is welded and cut to sequentially form the bottom. The blade 2 for welding and cutting and the receiving plate 3 disposed opposite to the blade 2 are provided with reciprocating mechanisms 4 and 5 that move the blade 2 toward and away from each other separately, and the reciprocating mechanism 5 for the receiving plate is driven by a fixed drive source. The reciprocating interlocking rod 25 connected to the stop plate 3 via the spring 34 is divided into a receiving plate side that operates, and a connecting pawl 6 is provided on the fixed drive source side, while a connecting claw 6 is provided on the receiving plate side that comes into contact with and separates from the blade 2. The member 26 is equipped with a locking step 7 on which the connecting claw 6 locks, and the reciprocating motion source 4 of the blade 2 is provided with a flexible material 30 via a frame rod 22 that moves back and forth by the motion source. The blade 2 is attached to the frame rod 22 via a spring 31 so as to be slightly retracted from the flexible material 30,
Further, the gist is a seal cutting mechanism safety device in which an operating member 8 for operating the communication claw 6 is provided protruding from the frame rod 22 via an arm 27.

Next, the configuration of the illustrated embodiment will be explained in detail.
In the figure, 9 and 10 indicate cams, and the roller 1 is attached to a pivot plate 13 fixed to the bottom plate 12 of the mechanism 11, and to a fan-shaped movement plate 16.17 whose lower end is pivoted by a pin 14.15.
8. Spring 2 so that the cams 9 and 10 are in contact with 19
Tow at 0.21.

One of the sector-shaped movement plates 16 , 17 communicates via a frame rod 22 to a bearing frame 23 with blades 2 , and the other sector-shaped movement plate 17
connects the connecting claw 6 to a reciprocating interlocking rod 25 which is pivotally supported by a pin 24.

A locking step 7, which is locked when the connecting claw 6 rotates about the pin 24, is integrally formed on the driven pipe 26 with a receiving plate 3 provided opposite the blade 2, and The connecting pawl 6 is operated by pushing a hook 6' integral with the connecting pawl 6, and the operating member 8 is inserted into the support rod 28 at the end of the arm 27 projecting from the frame rod 22. A spring 29 is applied to the support rod 28.

Therefore, as the cams 9 and 10 rotate, the blade 2 and the receiving plate 3 approach each other, and when welding and cutting the vinyl cylindrical body suspended between them, the hook 6' of the connecting claw 6 is constantly pressed to engage the connecting claw 6. The receiving plate 3 is moved in the direction in which the blade 2 approaches by being engaged with the stop portion 7.

However, if a hand or an object to be packaged is placed between the blade 2 and the receiving plate 3, the operating member 8 of the frame rod 22 will not advance to the position where the connecting claw 6 is actuated (Fig. 6); Even if the connecting claw 6 does not engage with the engagement step 7, the receiving plate does not move and therefore the blade does not protrude beyond the flexible material 30 that protects the blade 2.

Therefore, danger from the blade can be prevented.

In the figure, 23 is the support frame of the blade 2, and the rod 3 on which the spring 31 is applied
The blade 2 is connected to the movable plate 33 via the frame rod 22, and the movement of the frame rod 22 causes the blade 2 to contract the spring 31 and project the blade 2 from the protective flexible material 30 to perform a cutting action.

Further, the receiving plate 3 has a driven pipe 26 projecting thereon, a locking step 7 is provided at the tip thereof, and a reciprocating interlocking rod 25 with a connecting claw 6 pivotally attached thereto can be inserted into the driven pipe 26 together with a coil spring 34. be.

Reference numeral 35 denotes a motor for rotating the cams 9 and 10, and is connected to a camshaft 37 by a transmission mechanism 36.

Further, the rolled vinyl sheet 1' is pulled out under the hopper 38 into which foods are fed, rolled up, and sealed on the left and right sides by the sealing machine 39 to form the cylindrical body 1, which is then separated into a pair of rolls 40, 41.
The cylindrical body is held down by an opening/closing arm 42.43 having an opening/closing arm 42.43, which is opened when the body is loaded and inserted into the bottom to seal and cut it. 44 is its operating link mechanism, 45 is a cover, and 46
47 and 48 are members for protecting the contents, which are operated by a rope 49.

A synthetic resin tubular film and a band-shaped film are formed into a tubular shape by polymerizing and welding both longitudinal edges of the film, and the tubular film is filled with contents,
There is a well-known filling and packaging machine in which a heating plate, a receiving rubber plate, and a cutting blade approach a predetermined position from the left or right or one direction, compress it, weld and cut it laterally to form individual packages. However, the present invention prevents the tubular film from becoming tangled at the welded and cut points of such filling and packaging machines, and due to heat welding depending on the filling contents and the size of the bag, each packaged item will not be separated from the hot platen and will have problems such as adhesion resistance. This invention relates to a safety device that protects the hands and fingers from cuts and force if the driver accidentally inserts his/her hand into the welded/cut area while driving due to an accident or for some other reason.

This kind of filling and packaging machine is generally used for overnight pickling such as boiled noodles, fried tofu, gummo, konnyaku, tokoroten, mashed Chinese cabbage, mashed eggplant, mashed Japanese radish, etc., washed sweet potatoes, cut burdock, seasoned octopus, Vienna sausage, and mashed octopus. The safety device for welding and cutting parts of the present invention is effective when used in the following cases.

For example, in addition to hands and fingers, when filling and packaging contents with a flavor liquid, such as overnight pickled cucumbers and flavored octopus, the cucumbers and octopus in the tubular film may be welded and cut. If the bag is caught, a safety device will be activated to prevent the welding from breaking, thereby preventing troubles such as contamination of the flavor liquid to other packages due to the bag being torn, and poor welding due to a drop in the temperature of the heating plate.

Furthermore, when packaging screws, hardware, etc., the welded parts will not be damaged when they are caught in the welded parts.

Furthermore, if the situation shown in Figure 6 occurs while the packaging machine is operating, the conventional method would destroy the packaged items, and if the packaged items were sharper than the cutlery, it would damage the cutler and it would be necessary to replace it. was necessary.

According to the present invention, in such a case, the machine can be stopped immediately to eliminate the drawbacks of damaging the packaged object or the cutter.

That is, according to the present invention, the blade 2 and the receiving plate 3 installed opposite to the blade 2 are brought into contact with and separated from each other, and the cylindrical body 1 is welded and cut between them. The flexible material 30 is installed slightly backward from the flexible material 30, and the flexible material 30 first contacts the retaining plate 3 and moves forward against the rear spring 31, so the blade is not directly exposed, making it safe and preventing foreign matter from entering the welding fluid section. If it exists, the receiving plate 3
is supported by the reciprocating interlocking rod 25 via the spring 34 and retreats, which has the effect of preventing foreign objects from being crushed.

In particular, according to the present invention, at the final stage of the operation of the receiving plate 3, force is applied for the first time based on the engagement between the connecting pawl 6 and the locking step 7, instead of the previous forward movement by the spring 34, which improves safety. It also has the effect of increasing

In short, according to the present invention, it is possible to eliminate the defect of the conventional filling and packaging machine of this type, which causes cutting of fingers, etc., and it is very safe to use.

[Brief explanation of drawings]

The drawings show an embodiment of the seal-cutting mechanism safety device for a filling and packaging machine according to the present invention, in which Fig. 1 is a side view with a part of the cover cut away, Fig. 2 is a cross-sectional plan view, and Fig. 3 is a cross-sectional plan view. is a plan view of the main part, FIG. 4 is a side view of the same as above, FIG. 5 is a longitudinal sectional front view showing the seal cut state, and FIG.
FIG. 3 is a longitudinal sectional front view showing a state in which the safety device is activated. 1... Vinyl sheet cylindrical body, 2...
Blade, 3... Reception plate, 4, 5... Reciprocating mechanism, 6... Connection claw, 7... Locking step, 8
......Operating member, a, song, packaged object.

Claims (1)

[Scope of utility model registration request] In a filling and packaging machine of the type that stores food, etc. in a long vinyl sheet cylindrical body 1 and welds and cuts the upper part thereof to sequentially form the bottom, a blade 2 that welds and cuts the upper part of the cylindrical part in which the food, etc. is housed. and a receiving plate 3 disposed opposite to the blade 2. Board 3
The reciprocating interlocking rod 25 connected via the spring 34 is divided into the receiving plate side that operates, and the connecting pawl 6 is provided on the fixed drive source side, while the member 26 on the receiving plate side that comes into contact with and separates from the blade 2 is provided with a connecting claw 6. is equipped with a locking step 7 on which the connecting pawl 6 locks, and a flexible member 30 is provided on the reciprocating motion source 4 of the blade 2 via a frame rod 22 that moves back and forth by the motion source, and the frame rod The blade 2 is attached to the frame rod 22 by a spring 31 slightly retreating from the flexible member 30, and the operating member 8 for operating the connecting claw 6 is attached to the arm 27 on the frame rod 22.
A safety device with a seal and cutting mechanism protruding through the.