JPH04908Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a structure for preventing temperature rise in the meat grinding section of an electric meat grinder having a built-in drive motor.

[Background of the idea]

Generally, electric meat grinders with a built-in drive motor are
The product can be made compact and lightweight, and since there is no electric motor protruding from the outer shell, it is easy to clean and hygienic. However, when used for long periods of time, there was a problem in that the heat generated by the electric motor was transferred to the housing and barrel, warming the meat being processed.

Temperature control is especially important for meat products; if the temperature of the meat gets too high, it can cause discoloration, accelerate spoilage, and reduce the quality of the meat. Therefore, when grinding meat, the meat is ground at a temperature of -1°C to -3°C, and during processing, the temperature of the meat is kept at a certain temperature (generally referred to as the transformation point).
Maintaining the temperature below ℃) is a condition for producing high-quality ground meat.

[Purpose of invention]

The purpose of the present invention is to eliminate the above-mentioned drawbacks of the prior art, prevent temperature rise in the meat grinding section of this type of electric meat grinder, and improve the quality of ground meat after processing.

[Summary of the idea]

This invention focuses on the fact that ceramics have excellent heat insulation properties and high mechanical strength, and is designed to suppress the transfer of heat generated from the electric motor to the meat grinder between the barrel and housing and between the drive shaft and screw. In addition, the connection structure between the barrel and housing, and the drive shaft and screw has been devised.

[Example of idea]

FIG. 1 is a longitudinal cross-sectional view showing the structure of an electric meat grinder incorporating a driving electric motor. 1 is the meat grinder itself,
A housing 3 is housed inside a cover 2, and an electric motor 5 is built in the housing 3. Barrel 6
is inserted into a fitting hole 4 provided in the housing 3 and fixed with a handle (not shown). The rotational force of the electric motor 5 is transmitted to the drive shaft 9 via the gear device 8. Since the end portion 11 of the screw 10 is connected to the drive shaft 9, the screw 10 rotates. Meat lump 14 placed on meat plate 13
When the meat is put into the input port 7 of the barrel 6, the meat lump 14
is transferred in the direction of arrow A by the screw 10 and extruded from the plate hole 12.

The fitting portion of the barrel 6 and the connecting portion of the screw 10 of the meat grinder having such a configuration will be described below.

FIG. 2 is a partially enlarged view of the fitting portion between the barrel 6 and the housing 3. The structure of the present invention is that the housing 3
The fitting hole 4 of the housing 3 provided in the housing 3 and the end portion 11 of the screw 10 are bonded with ceramics having high mechanical strength, such as zirconia ceramics, as a heat insulating material. 1 shown in the figure
5 and 16 are heat insulating materials.

The bonding method is to insert, for example, an aluminum alloy as an insert material between ceramics and metal, and perform diffusion bonding by heating and pressurizing in a vacuum. According to this method, it is possible to obtain a high adhesive strength of about 20 kg/mm ² depending on the thickness of the insert material, so it can be used sufficiently in terms of mechanical strength.

As mentioned above, high adhesive strength is obtained by bonding using ceramics as a heat insulating material, and even if the heat generated from the electric motor is transferred to the housing, this ceramic blocks the heat transfer to the barrel and screw, so it is easy to use during processing. Good quality ground meat can be provided without increasing the temperature of the meat.

[Effect of idea]

According to the present invention, ceramics with excellent insulation properties and high mechanical strength are installed between the barrel and the housing, as well as between the drive shaft and the screw, thereby preventing discoloration or rotting of the meat due to a sudden temperature rise in the main body. It is possible to process high-quality ground meat.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing the electric meat grinder according to the present invention, and FIG. 2 is a partially enlarged view of the fitting portion between the barrel and the housing. In the figure, 3 is the housing, 5 is the electric motor, and 6
1 is a barrel, 9 is a drive shaft, 10 is a screw, and 15 and 16 are heat insulating materials.

Claims (1)

[Scope of Claim for Utility Model Registration] A housing containing a driving electric motor, a green meat input port attached to the upper front side of the housing,
A meat grinder having a barrel having a meat grinding outlet at the front, a drive shaft driven by the electric motor, and a screw having one end fitted into an end of the drive shaft and rotatably supported within the barrel. A structure for preventing a rise in temperature of a meat grinding part of a meat grinder, characterized in that a heat insulating material having excellent mechanical strength is fixed between the housing and the barrel and between the drive shaft and the screw.