JP2001315706A - Work filling apparatus for automatic packaging machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably feed a predetermined constant amount of a work when filling and feeding the highly viscous work to an automatic packaging machine using pumps. SOLUTION: The pump 3 of the relatively large capacity and the pump 5 of a relatively small capacity are provided in a feed passage 4 for the highly viscous work NT stored in a tank 1 to the automatic packaging machine 9, and the work NT is filled and fed in a consistent state to the automatic packaging machine 9 by these two pumps 3 and 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for filling an article to be packed used in an automatic packaging machine, and more particularly to a relatively high-viscosity substance (viscosity, for example, wasabi, Japanese maple, or cooking miso). The present invention relates to a filling apparatus suitable for use in filling the substance).

[0002]

2. Description of the Related Art When supplying the above-mentioned viscous substance to an automatic packaging machine, for example, as disclosed in Japanese Patent Application Laid-Open No. H8-232328, a piston type pump operated by a motor is provided with a viscous substance. Is connected via a rotary valve to the lower supply port of the tank (hopper) containing
A viscous filling device (viscosity pump device) configured to supply a constant amount of the viscous substance in the hopper from the delivery pipe to the automatic packaging machine through the pump chamber in accordance with the rotation of the rotary valve and the reciprocating motion of the piston is used. .

[0003]

However, since the above-mentioned conventional viscous substance filling apparatus is for feeding and supplying a viscous substance by a single piston type pump, the pressure applied to a suction portion for sucking the viscous substance varies. Alternatively, there is a case where air is contained in the viscous substance at the time of pressure feeding by the piston, so that the filling amount in the automatic packaging machine is not stable, and there is a problem that the fixed amount supply is hindered.

[0004] Therefore, a technical object of the present invention is to ensure that a fixed quantity of a packaged object can be reliably supplied in a stable state when a highly viscous packaged object is filled and supplied to an automatic packaging machine using a pump. That is.

[0005]

According to the present invention, in order to solve the above-mentioned technical problems, a tank containing the articles to be packaged and an automatic packaging machine are connected by a hollow supply path, and the tank of this supply path is connected to the tank. A pump for filling is provided on each side and the automatic packaging machine side, and the pump on the tank side is a relatively large capacity pump, and the pump on the automatic packaging machine side is a relatively small capacity pump. Therefore, inside the supply path from the tank to the automatic packaging machine, the article to be packaged supplied by a relatively large-capacity pump is always kept in a pressurized state, that is, in a full state. As a result, a relatively small-capacity pump provided on the automatic wrapping machine side fills and supplies the pressurized wrapped product to the automatic wrapping machine side in a stable state, and seals a fixed amount of the wrapped product. Enables continuous molding of packaged products.

Further, according to the present invention, a package that cannot be processed by the small-capacity pump is sent back to the tank through a circulation path in a supply path between the large-capacity pump and the small-capacity pump. A switchable discharge valve is provided to prevent over-supply of the package by a relatively large-capacity pump, and prevent deterioration and quality deterioration of the package due to excessive supply (overload). enable.

Further, according to the present invention, even if the packaged object contained in the tank is a highly viscous substance such as wasabi, maple, cooked miso, or jam, the viscous substance is automatically extracted by the two pumps. It is possible to supply a fixed amount accurately and stably to a packaging machine.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing the construction of the present invention; FIG. In the figure, reference numeral 1 denotes a tank (hopper) containing a highly viscous packaged material NT such as wasabi or maple and the like.
Is a supply pipe for supplying the package NT to the tank 1,
Reference numeral 3 denotes a relatively large-capacity piston pump attached to the bottom supply port of the tank 1, and reference numeral 4 denotes a supply path (pipe) for supplying the article to be packaged NT which is pressurized and delivered by the pump 3 to the automatic packaging machine 9. Then, in a normal device, the tank 1
A rotary valve (not shown) that opens and closes in conjunction with the pump 3 is provided at a portion of the supply port.

Reference numeral 5 denotes a relatively small-capacity pump mounted at the end of the supply path 4 on the side of the automatic packaging machine 9; 3 shows a filling pipe to be supplied.

Reference numeral 7 denotes a switching discharge valve (electromagnetic valve) provided in the middle of the supply path 4 to which the two pumps 3 and 5 are attached. The switching discharge valve 7 is pressurized by the pump 3 having a relatively large capacity. When the supply is advanced and the pump 5 with a relatively small capacity cannot process the excess, that is, when the supply becomes excessive due to excessive supply, the extra NT to be returned to the original tank 1 through the circulation pipe 8 is supplied. It is a mechanism that fulfills.

FIG. 2 is a block diagram showing the electric configuration of the present invention. In FIG. 2, reference numeral 10 denotes a control unit equipped with a microcomputer. 1 pump) and a relatively small capacity pump 5
(The second pump), the switching discharge valve 7 (electromagnetic valve), and the automatic packaging machine 9 are connected so that the material to be packaged NT in the tank 1 can be constantly supplied to the automatic packaging machine 9 in a stable state. In addition, a mechanism for controlling the operation of each of the pumps 3 and 5 is provided.

The switching discharge valve 7 is provided when the pump 5 having a relatively small capacity becomes overloaded due to excessive supply of the package NT, or when the pressure in the pipe in the supply path 4 is set to supply the package NT. When the set value is exceeded due to excessive amount, the control unit 10 opens the switching release valve 7 in accordance with these detection signals and circulates and supplies the excess packaged material NT to the tank 1 side. The valve 7 may be configured to be mechanically opened by the pressure of the package NT,
The choice is optional.

[0013] Since the apparatus for filling an object to be packaged for an automatic packaging machine according to the present invention is constructed as described above, the object to be packaged NT is always supplied to the supply path 4 by the first pump 3 having a relatively large capacity. Since the filled state, that is, the packaged object NT always exists in a pressurized state, the packaged material NT is not stably contained by the second pump 5 having a relatively small capacity without containing air. However, it can be sent to the automatic packaging machine 9 at a constant pressure.

[0014]

As described above, according to the packing device for an automatic packing machine according to the present invention, the packing material is made of a highly viscous substance such as wasabi, maple, or cooking miso. Even in this case, it can be filled and supplied to the automatic packaging machine in a stable state, so that a packaged product having a constant filling amount can be automatically and continuously packaged.

[Brief description of the drawings]

FIG. 1 is a configuration diagram illustrating the entirety of an apparatus for filling a packaged object for an automatic packaging machine according to the invention.

FIG. 2 is a block diagram showing an example of an electric configuration of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tank (hopper) NT Viscous material to be packaged 3 Relatively large capacity pump 4 Supply path 5 Relatively small capacity pump 7 Switching discharge valve 8 Circulation pipe 9 Automatic packaging machine

Claims (3)

[Claims] 1. A filling device for continuously filling an automatic packaging machine with an article to be packaged, wherein a hollow supply path connects a tank containing the article to be packaged and the automatic packaging machine, and the supply path includes: The pumps for filling are provided on the tank side and the automatic wrapping machine side respectively, the pump on the tank side is a relatively large capacity pump, and the pump on the automatic wrapping machine side is a relatively small capacity pump. Filling equipment for automatic packaging machines. 2. A switching discharge system in which a package that cannot be processed by a small capacity pump can be sent back to the tank through a circulation path in a supply path between the large capacity pump and the small capacity pump. 2. The apparatus according to claim 1, further comprising a valve. 3. An article to be packaged contained in a tank is made of various highly viscous substances such as wasabi, maple, grated cooking miso, or jam.
Or the packing object filling apparatus for automatic packaging machines of Claim 2.