JPS6333762Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention involves forming a thermoplastic synthetic resin belt-like film into a cylinder, moving it downward, and placing the contents inside the cylinder, such as sticky meat, yolk, boiled rice, and grease. Consistent objects, striated objects such as konnyaku and bean sprouts, powdery objects such as beans, chestnuts, wheat flour, and shichimi, fruit juice,
This invention relates to an improvement in an automatic filling and packaging machine that automatically fills liquid substances such as cooking juice and water, or a mixture thereof, and seals the cylindrical body automatically filled with the contents at predetermined intervals. .

Conventionally, these automatic filling and packaging machines include, for example, ADP [product name: Asahi Dow Packer, manufactured by Asahi Dow Co., Ltd.]
and KAP [product name: Kureha Auto Police Car, manufactured by Kouha Kagaku Co., Ltd.], etc. are commonly used, and although there are slight differences in structure depending on the purpose and model of these devices, the principle behind them is An example of this mechanism will be explained with reference to FIG. 1. The strip-shaped film F is pulled out from the rolled layer of thermoplastic synthetic resin strip-shaped film F attached to the web shaft 2 attached to the frame 1, and At this point, both ends of the film strip F are formed into a cylindrical shape so that they are overlapped in the longitudinal direction, and then both ends of the overlapped film F are heat-sealed by a sealing device 4. The cylindrical body F' is then fixed as a cylindrical body F', and this cylindrical body F' is moved to the next step by the feed roll 6. On the other hand, the contents are filled into the cylindrical body F' located at the upper part of the feed roll 6 by a guide pipe provided through the folder 3 from the direction of the arrow of the contents supply device 5. Ru. Such a contents supply device 5 has a measuring device suitable for the type of contents, such as a pressure pump, a weighing device, and a food trough, and has a function of automatically performing continuous and intermittent fixed-quantity automatic filling. are doing. In addition, the feed roll 6 includes one that clamps the center part of the cylindrical body F', and one that clamps both sides of the cylindrical body F', and rolls the cylindrical body F' filled with contents into a ○○ shape or a 〓 shape. Since the running of the cylindrical body F' is controlled by holding them, the cylindrical body F' can be reliably moved at a constant speed without damaging the shape of the contents. The cylindrical body F' filled with contents and fed by the feed roll 6 is pressed into a flat shape at predetermined intervals by the squeezing means 7 without being prevented from traveling at a constant speed. , this squeezing means 7 is generally a cylindrical body.
A device is used that attaches and detaches a pinch roll, which has a circumferential speed that is approximately the same as the traveling speed of F', at a predetermined period.
This squeezing means 7 has the role of pushing away the contents inside the cylindrical body F' and using that part as a sealing place, which will be described later, to ensure the sealing operation. Depending on the type of container (which requires filling), it can also serve as a bottom support for the contents. In this case, the operation of the squeezing means 7 needs to be synchronized with the filling cycle of the contents. Furthermore, depending on the contents, there are some that can be sealed as described later without the need for this squeezing means 7. This straining means 7 will be omitted.
The cylindrical body F' then passes through a sealed box 8, which holds the cylindrical body F' at predetermined intervals, and has means for sealing the parts, such as wire clips or heat-sealing means. It has a built-in operating mechanism that controls the operation, and seals the strained portion of the cylindrical body F' by the straining means 7 in two places, and generally cuts the central portion of the two sealed portions. Individual cylindrical packages are completed automatically and continuously. The operation of this sealed box 8 is, for example,
48-9407, etc., so a detailed explanation will be omitted, but in short, the rotational movement of the main shaft 9, which rotates at a constant speed by a drive source (not shown), is controlled by the intermediate shaft 9' and the transmission shaft 9. It has a built-in cam (not shown) such as a groove cam or a heart cam that converts this rotational motion into a reciprocating motion, and has the operating function of a series of sealing means. There is.
In this sealed box 8, a sealed box vertical movement mechanism is separately installed parallel to the transmission shaft 9'', which converts the rotational movement of the main shaft 9 into vertical movement by the action of a crank mechanism (corresponding to 11) and transmits the vertical movement. The sealing box 8 as a whole is moved up and down at a predetermined period.This is necessary to seal the cylindrical body F' regardless of the sealing means adopted. This is because it takes time. For example, in ligation and sealing using wire clips, the process is as follows: focus the cylindrical body F' → apply the U-shaped wire to the cylindrical body F' → deform the wire into a square shape → press the wire. It takes a lot of time because it has to go through processes such as fitting, and it also takes time to press the film because it has to go through processes such as heating the film, melting it, and welding it. Then, the entire sealing box 8 is lowered at substantially the same speed as the traveling cylindrical body F', and the relative speed between the cylindrical body F' and the sealing box 8 is brought to a state of almost zero, and the sealing operation is completed during this time. It's summery.

However, such conventional automatic filling and packaging machines cannot meet recent market demands for increased packaging capacity. The reason for this is that when trying to increase the packaging capacity by increasing the number of rotations (number of packaging cycles), the inertia at the time of startup causes the initial feeding of the package and the sealing operation to be out of sync, and the sealing means At most, the current capacity is 30%, which causes the package to bend and cause a delay, resulting in the engine not being able to start completely.
This is because it occurs when the number of packaging cycles increases by %.

The inventors believe that eliminating the cause of the large inertia described above will not only improve the performance of conventional automatic filling and packaging machines, but will also be effective in designing high-speed automatic filling and packaging machines, and have investigated the cause of this problem. As a result, it was determined that the size of the load itself on the sealed box (i.e., the size of the sealed box and the thickness of the part that supports it) was one of the main factors, and after further research, the present invention was completed. This is what I did.

The purpose of the present invention is, firstly, to reduce inertia by making the sealed box smaller and lighter, and secondly, the purpose of the present invention is to reduce the inertia by making the sealed box smaller and lighter. The purpose is to renovate the space occupied by a total of four 9" bottles into a device structure with high workability and safety. Thirdly, the purpose is to provide a compact, lightweight, high-speed automatic filling and packaging machine.

That is, the present invention continuously forms a thermoplastic synthetic resin strip film into a cylindrical shape, automatically fills the cylindrical body with a charge, and moves the cylindrical body downward with the charge still inside. , forming a moving region where the relative speed between the downward movement of the cylindrical body and the downward movement of the sealed box is substantially zero by lowering a sealed box containing a sealing means; In an automatic filling and packaging machine that automatically and continuously forms sealed cylindrical packages with predetermined intervals by performing a sealing operation on the cylindrical body facing downward in the moving area, the lower part is the main shaft. The upper end is connected to a drive system that transmits the rotation of the main shaft, and the upper end is connected to a sealing operation system built in the sealed box to transmit the rotational motion of the main shaft as power to the sealing means, and the upper end is fixed to the sealed box. The lower end is connected to a crank mechanism driven by the main shaft, and an elevating shaft that controls the elevating movement of the sealed box is arranged concentrically with the elevating shaft on the outside. This relates to automatic filling and packaging machines.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of an automatic filling and packaging machine according to the present invention will be described in detail with reference to the drawings.

FIG. 2 is an explanatory front view of one embodiment of the automatic filling and packaging machine according to the present invention, and FIG. 3 is an enlarged explanatory view of section A in FIG. 2.

In the drawing, 1 is a frame, 2 is a raw fabric shaft attached to the frame 1 and equipped with a wrapping body of a thermoplastic synthetic resin strip film F, and 3 is a rolled layer body attached to the raw fabric shaft 2. This folder is formed into a cylindrical shape so that both ends of a strip-shaped film F made of thermoplastic synthetic resin pulled out from the film are overlapped in the longitudinal direction. 4 is a sealing device, and folder 3
Both ends of the strip-like film F, which are overlapped with each other, are heat-sealed and fixed as a cylindrical body F'. Reference numeral 5 denotes a content supply device for filling the contents into the cylindrical body F' through a guide pipe installed to penetrate the inside of the folder 3 in the direction of the arrow. Numeral 6 is a feed roll that controls the running of the cylindrical body F', and there are feed rolls that clamp the central part of the cylindrical body F', and those that clamp both sides of the cylindrical body F'. 7 is a squeezing means for pressing the cylindrical body F' into a flat shape at a predetermined interval without interfering with the constant speed running of the cylindrical body F'; A device is used that attaches and detaches at intervals of .
Reference numeral 8 denotes a sealed box in which a means for capturing the cylindrical body F' at a predetermined interval and sealing the part, such as wire clips or heat-sealing, and an operating mechanism for controlling the operation thereof are built in. In general, the strained portion of the cylindrical body F' by the straining means 7 is sealed at two locations, and the central portion is cut to automatically and continuously complete each package. Reference numeral 9 denotes a main shaft rotated at a constant speed by a drive source (not shown), and this main shaft 9 is housed in the lower part of the frame 1.

Since the above structure is almost the same as the conventional device, detailed explanation thereof will be omitted.

9' is an intermediate shaft that is driven by the main shaft 9 and transmits power to a transmission shaft 9'' that transmits power to the sealing means for sealing the cylindrical film F'.An umbrella is connected from this intermediate shaft 9' to the transmission shaft 9''. The power is transmitted by gears, and the transmission shaft 9'' is a spline shaft so that it can move up and down with respect to the bevel gear that meshes with the bevel gear fixed to the intermediate shaft 9'.10,1
0' is a gear that transmits the power of the main shaft 9 to the intermediate shaft 9'. 11 is a sealed box 8 in which the sealing means is stored.
It is a crank mechanism that raises and lowers a lifting shaft 12 whose upper end is fixed to A swinging arm 11d is rotatably mounted by a shaft 11c and a pin 11b is slidably inserted into a long groove (not shown), and the swinging arm 11d is connected to the swinging arm 11d via a shaft 11e. connecting arm 11f
and a shaft 11g rotatably attached to the connecting arm 11f, and the crank mechanism 11 is connected to the lower end of the lifting shaft 12 by the shaft 11g. In the present invention, the lifting shaft 12 is arranged concentrically outside the transmission shaft 9'',
Moreover, this elevating shaft 12 is supported by the frame 1 via a slide bearing 13 so that it can only be moved up and down. In the embodiment shown in FIG. 2, two concentric shafts are used with emphasis on ease of horizontal balance when the sealed box 8 is raised and lowered. In principle, it is also possible to have a single structure.

The automatic filling and packaging machine according to the present invention having such a structure is as follows:
Since the lifting shaft 12 is disposed concentrically outside the transmission shaft 9'', the transmission shaft 9'', which is the shaft that connects from the inside of the frame 1 to the sealed box 8, and the lifting shaft 12 appear to be a single shaft. It looks like only the lifting shaft 12, and as a result, the transmission shaft 9'', which is the rotating shaft, is not exposed, which eliminates the risk of clothes getting caught in the transmission shaft 9'', improving safety, and improving the safety of the sealed box. The size of 8 is the penetration part of the transmission shaft 9'' and the lifting shaft 12.
Since the fixing parts and the fixing parts are all in one place instead of being provided separately, the occupied space can be reduced, and as a result, the size of the sealed box 8 and the automatic filling and packaging machine as a whole can be reduced, and the sealed box 8 is small and lightweight. As a result, the automatic filling and packaging machine requires less power to drive, and even when operating at high speed, the inertia is small, so it can operate at a sufficiently high speed, and it has various advantages, such as generating less vibration during high-speed operation. and
Its practical value is enormous.

[Brief explanation of the drawing]

FIG. 1 is an explanatory front view showing the structure of one embodiment of a conventional automatic filling and packaging machine, FIG. 2 is an explanatory front view of one embodiment of the automatic filling and packaging machine according to the present invention, and FIG. FIG. 2 is an enlarged explanatory diagram of part A in FIG. 2; DESCRIPTION OF SYMBOLS 1... Frame, 2... Original fabric shaft, 3... Folder, 4... Sealing device, 5... Content supply device, 6... Feed roll, 7... Straining means,
8...Sealed box, 9...Main shaft, 9'...Intermediate shaft,
9″...Transmission shaft, 10,10'...Gear, 11...
Crank mechanism, 11a... rotating plate, 11b... pin, 11c... shaft, 11d... rocking arm, 11
e...Shaft, 11f...Connection arm, 11g...
Shaft, 12... Lifting shaft, 13... Slide bearing, F... Band-shaped film, F'... Cylindrical body.

Claims (1)

[Scope of utility model registration request] A thermoplastic synthetic resin strip film F is continuously formed into a cylindrical shape, a charge is automatically filled into the cylindrical body F', and the cylindrical body moves downward with the charge still inside.
By lowering the sealed box 8 containing a sealing means, the cylindrical body F' is moved downward and the sealed box 8 is moved downward.
By forming a moving region where the relative speed between the downward motion of In an automatic filling and packaging machine that automatically and continuously forms sealed cylindrical packages, the lower part is connected to a drive system that transmits the rotation of the main shaft 9, and the upper part is connected to a sealing operation system built in the sealed box 8. The transmission shaft 9'' transmits the rotational motion of the main shaft 9 as power to the sealing means, and the upper end is fixed to the sealing box 8, and the lower end is connected to the crank mechanism 11 driven by the main shaft 9, and the transmission shaft 9'' is connected to the above-mentioned sealing box. An automatic filling and packaging machine characterized in that an elevating shaft 12 that controls the elevating movement of the container 8 is arranged concentrically with the elevating shaft 12 on the outside.