JPH0628573B2 - Cleaning equipment for food extruder - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a cleaning device for a food extruder.

[Prior Art] A food extruder normally uses two screws, and when the extrusion is stopped and left to stand, the food material remaining in the barrel is denatured or putrefaction, so that the screw is pushed out. Although most food materials are discharged by this method, there is a meshing gap between the two screws, and the food film adhered to the outer periphery of the screw corresponding to this space could not be completely removed by the self-cleaning effect (action) by the screw rotation.

However, depending on the food material, there are cases in which this film rots in a short time, and when the next extrusion is performed while it is left unattended, the film is burned by heating the barrel without supplying the food material to the barrel. Then, when the food is next fed to the barrel, the char does not immediately separate from the screw, and partly separates after a while, resulting in defective extruded products for a long time. For this reason, conventionally, the screw was disassembled and cleaned with a brush, which took a lot of time and reduced productivity.

[Object of the Invention] The present invention eliminates such drawbacks, and its object is to:
It is an object of the present invention to provide a cleaning device for a food extruder in which a jet water stream is blown onto the screw to clean the food film remaining in the meshing gaps of the screw.

[Points of the Invention] The cleaning apparatus for a food extruder according to the present invention has two units in a barrel.
In a food extruder in which a screw is inserted, a moving mechanism that moves the barrel in the axial direction, a jet flow ejection hole provided at one or more locations on the barrel, a water tank, and water in the water tank is used as the ejection hole. It is characterized in that it is composed of a pump which is pressurized and supplied.

[Embodiment of the Invention] Referring to FIGS. 1 to 3 showing an embodiment of the present invention. Barrels are 11A to 11D in the illustrated example
It is divided into 4 pieces and has two screws 12 inside.
(Only one is shown in the figure) has been inserted. A heater 13 is provided on the outer periphery of the barrels 11A to 11C, a die 14 is attached to the left end of the barrel 11A in the drawing, and a shooter 15 is attached above the barrel 11D to feed the ingredients supplied from a feeder 16. I am supposed to receive it. 17 is a water tank, and the water tank 17 has a shutoff valve 1
A pump 20 for water addition and a high-pressure pump 21 for cleaning are connected via 8 and 19, and relief valves 22 and 23 are attached to the pumps 20 and 21, respectively. The pump 20 is connected to the left side flange of the barrel 11D via a check valve 24, and the pump 21 has four check valves 25.
Is connected to the ejection hole 26 provided in the right side flange of the barrels 11A to 11D.

The barrels 11A to 11D are fixed on a mounting base 31, and the mounting base 31 is fixed on a moving base 32. Moving table 32
Roller 34 fixed to a shaft 33 that is rotatably supported to
Is in contact with the upper surfaces of the pair of rails 35, and the moving table 3
2 is in contact with both ends of the rail 35 to regulate the lateral movement (in FIG. 3) during movement. A rack 36 is formed on the lower surface of the center of the moving table 32, and the rack 36 meshes with a pinion 38 rotated by a handle 37. Therefore, by rotating the handle 37, the barrels 11A to 11D move in the axial direction. Reference numeral 41 is a frame to which the barrel 11D is attached.
Reference numeral 2 is a gutter that receives the cleaning water from the pump 21, and 43 is a receiving box that stores the cleaning water.

Next, the operation of the above-described embodiment will be described. The first extrusion operation
Perform in the state shown in the figure. The screw 12 is rotated by a drive source (not shown), and the heater 13 is energized so that the barrel 1
The temperature of 1A to 11C is raised and the water in the water tank 17 is supplied to the barrel 11D via the check valve 24 by opening the shutoff valve 18 and operating the pump 20. On the other hand, the raw material (not shown) is passed from the feeder 16 through the chute 15 to the barrel 1
Supply to 1D. The supplied ingredients and water are screw 12
Is stirred and mixed by and heated to be sent forward (to the left) and extruded from the die 14.

At this point, when the extrusion operation is completed, if the screw 12 is continuously rotated with the feeder 16 stopped, the barrel 11A
Most of the foodstuffs in the interior are pushed out, so the deadline valve 18
Is closed to stop the water supply of the pump 20. Then barrel 11
Remove D from frame 41 and die 14 from barrel 11A, and gutter 42 below barrels 11A through 11D.
Put.

Subsequently, when the pump 21 is operated after opening the shutoff valve 19 while rotating the screw 12, a high-pressure jet flow is sprayed toward the rotating screw 12 from the ejection hole 26 of the right flange of the barrels 11A to 11D. The food film in the screw meshing gap formed on the outer periphery of the screw at the time of extruding the food is washed by the high-pressure jet stream, and the washing water flows out from the gutter 42 to the receiving box 43 as shown in FIG. At this time, by rotating the handle 37 to move the barrel 11A and the like to the left by the length thereof, the screw 1
Wash the entire length of 2.

It is of course possible to use an electric motor (not shown) instead of the handle 37, and the ejection hole 2 of the pump 21 can be used.
6 may not be provided in all of the barrels 11A to 11D, but may be provided only in the barrel 11D. In this case, the barrel 11D
It is necessary that the moving distance such as the length be the entire length of the screw 12.
Further, the barrel is divided into four, which is an example, and the number of divisions is not limited.

Although the screw 12 was rotated during cleaning in the above description, it can be stopped. In this system, a short cylindrical frame (not shown) in which two screws are inserted is attached to the right end of the barrel 11D, and if a large number of jet flow jet holes are provided on the outer periphery of this frame, the screw can be continuously washed during cleaning. There is no need to rotate twelve. However, in this case, the barrel 11D and the like need to move along the entire length of the screw 12. After the barrel 11D and the like are transferred over the entire length of the screw and washed with a jet flow, the phase is slightly shifted in the rotational direction to wash the meshing portion of the two screws, and the entire length of the screw 12 is moved through the barrel 11D and the like. If washed, the cleaning effect can be further improved.

[Effects of the Invention] As described above, the cleaning device for a food extruder according to the present invention has a simple structure in which the moving mechanism including the manual operation of the barrel, the ejection hole provided in the barrel, and the pump are added, but the screw Since the cleaning can be performed by jet flow without disassembling the screw, it has an advantage of saving a lot of time and improving productivity.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention, FIGS. 1 and 2 are sectional views in different states, and FIG. 3 is a side view. 11A, 11B, 11C, 11D …… Barrel, 12 ……
Screw, 17 ... water tank, 21 ... pump, 26 ... spout hole.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshio Suzuki, 3) 2068 Ooka, Numazu City, Shizuoka Prefecture Numazu Plant, Toshiba Machine Co., Ltd. On-site (56) Reference JP-A-56-102779 (JP, A)

Claims (2)

[Claims] 1. A food extruder in which two screws are inserted into a barrel, a moving mechanism for moving the barrel in the axial direction, and jet flow jet holes provided at one or a plurality of positions on the barrel. A cleaning device for a food extruder, comprising a water tank and a pump for pressurizing and supplying water from the water tank to the ejection holes. 2. The cleaning apparatus for a food extruder according to claim 1, wherein the screw rotates during cleaning.