JPS626451Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an auger-type ice maker, and more particularly to an auger-type ice maker having a structure that can easily produce ice of different quality.

In the press head of a conventional auger-type ice maker, the press head is formed of a cylindrical hub in the center and a plurality of bosses fixedly spaced around the hub in the circumferential direction. The boss had a wedge-shaped surface on the side facing the extrusion end of the screw blade in the axial direction of the hub and toward the extrusion end of the screw blade for extruding ice. However, with an auger-type ice maker that uses this type of push head, only one type of ice quality can be obtained, so if you want to change the ice quality, you have to replace the entire set of push heads, especially when replacing The work was extremely complicated.

The present invention has been made to solve the above-mentioned problems, and its purpose is to provide an auger-type ice maker that can easily produce ice of different qualities.

For this purpose, the present invention provides a frozen casing and
a screw shaft rotatably disposed within the freezing casing and having a large-diameter screw blade support portion and a small-diameter press head penetrating portion located above the screw shaft, and surrounding the press head penetrating portion within the freezing casing; a pressing head supported by the freezing casing, the pressing head having a cylindrical part surrounding the pressing head penetrating part, and a cylindrical part surrounding the cylindrical part, spaced apart in the circumferential direction and extending in the axial direction. An auger-type ice maker is formed of a plurality of fixed blades that define a plurality of ice compression passages, and the upper end of the screw blade in the screw blade support part extends to the vicinity of the pressing head penetration part. The machine further includes a rotating member attached to an extension extending upward from the press head penetrating portion, the rotating member including a support cylinder part detachably fixed to the extension part, and the support cylinder part. A first blade having a pair of blades tilted in the same direction and spaced apart from each other with respect to the axis thereof on the outer circumferential surface of the blade, and a pressing part connecting the ends of the pair of blades, and having an opposite vertical relationship. and a second state, the upper end of one of the blades is axially spaced apart from the upper end of the screw blade in the first state. directly above the screw shaft, the lower end is located downstream of the upper end with respect to the rotational direction of the screw shaft, the lower end of one of the blades and the lower end of the other blade are connected by the pressing part, and the second state is set. The upper end of one of the blades is located directly above the upper end of the screw blade, and the lower end is located upstream of the upper end with respect to the rotational direction of the screw shaft.

Next, the auger type ice maker of the present invention will be explained in detail based on the accompanying drawings.

FIG. 1 shows a partial longitudinal cross-sectional view of the device according to the present invention, and FIG. 2 shows an exploded perspective view of various parts including the pressing head used in the device of the present invention. 1 and 2, reference numeral 1 indicates a refrigerating casing of an auger-type ice maker, in which a screw shaft 3 having a screw blade 2 is rotatably supported. The screw shaft 3 has a screw blade support portion 3a having the screw blade 2 and a press head penetrating portion 3b passing through the press head (described later), and is rotationally driven by a rotational drive device 21. An extension extending upward from the press head penetrating portion 3b is provided with a notch 4 for receiving the rotating member 12, and a threaded portion 5 having a threaded cutout portion 5a above the notch 4.

The pressing head 7 is composed of a fixed blade cylindrical part 11 and fixed blades around it, that is, a thick thick blade 8 and a thin thin blade 9. The passage forms an ice compaction passage 10. The lower ends of the thick blade 8 and the thin blade 9 extend to the vicinity of the upper end 2a of the screw blade 2 and have the same length in the axial direction, and furthermore, the ice from the screw blade 2 can be easily guided into the ice compression passage 10. It has a tapered shape to make it look like this. The upper parts of the thick blade 8 and the thin blade 9 are parallel to each other,
Since the rotating member 12 is used in combination with the pressing head 7 to compress the ice against the pushing force of the ice in the axial direction, the length of the parallel portion in the axial direction may be shorter than that of the conventional one. good. The tapered portions of the thick blade 8 and narrow blade 9 that define the ice compression passage of the pressing head 7 and the parallel portions above them are buffed to allow ice to pass through smoothly. This pressing head 7 is fixed within the refrigeration casing 1.

The rotating member 12 disposed above the pressing head 7 is
Support cylindrical portion 13 that fits onto the auger screw shaft 3
, a pressing part 14 that confines the ice rising from the ice compression passage 10 within the passage, and a pair of wings 15 that allow the ice compressed in the ice compression passage 10 to rise while further compressing it. It rotates with the rotation of the screw shaft 3. The pressing part 14 is composed of a fan-shaped flat plate, and its outer peripheral surface is connected to the freezing casing 1.
It is designed to be close to the inner wall surface of the wings 15
The pair of sides of the pressing portion 14 extending radially outward from the lower end of the outer circumference of the supporting cylindrical portion 13 are connected to the supporting cylindrical portion 1
3 is inclined with respect to the axis and raised by the height of the cylindrical portion 13, and a tapered portion 15a is formed at the end thereof. The rotating member 12 has a protruding portion 16 in the supporting cylindrical portion that fits into the screw cutout portion 5a and the notch portion 4, and the rotating member 12 and the upper end portion of the screw shaft 3 are coupled in a specific positional relationship. be done.

The diameter of the cylindrical portion 13 of the rotating member 12 is set to be equal to or smaller than the diameter of the cylindrical portion 11 of the pressing head 7, and the length of the notch 4 provided on the screw shaft 3 for receiving the rotating member 12 is , so that there is a slight gap between the upper end surface of the pressing head 7 fixed to the freezing casing 1 and the lower end surface of the rotating member 12 fitted to the screw shaft 3.

As is clear from the above configuration, the press head 7 is fitted into the press head penetrating portion 3b of the screw shaft 3 in the refrigeration casing 1, and the notch 4 of the press head penetrating portion 3b protruding above the press head 7 is inserted into the press head penetrating portion 3b. A rotary member 12 is fitted into the rotary member 12, and a known shaft fixing means 20 such as a nut is rotatably attached to the threaded portion 5 of the screw shaft 3 which protrudes further upwardly of the rotary member 12. , rotating member 12,
Nut 20 can be combined. As described above, the pressing head 7 rotatably supports the screw shaft 3, and since there is a small gap between the rotating member 12 and the pressing head 7 as described above, the rotating member 12 and the nut 20 can freely rotate together with the screw shaft 3.

Next, the operation of the auger type ice maker of the present invention will be explained.

Refrigerated casing 1 by a refrigeration device (not shown)
As the screw blade 2 rotates in the direction of the arrow, the ice formed on the inner wall of the casing 1 moves upward into the ice compression passage 10 between the thick blade 8 and the thin blade 9 of the pressing head 7. sent to. The irregularly shaped shaved ice sent in is compressed into fine granular ice as it passes through the ice compression passage 10. This granular ice is further pushed upward by the shaved ice group or the granular ice group that is continuously pushed up by the screw blade 2, but a part of the upper ice outlet 10' of the ice compression passage 10 is pushed up by the rotating member 12. Since the granular ice is closed by the pressing portion 14, the granular ice is further compressed and aggregated into solid columnar ice in this closed ice compression passage.
Since the rotating member 12 is rotated by the rotation of the screw shaft 3, the columnar ice that has come off the pressing part 14 is pushed up by the shaved ice group or the granular ice group that is pushed up from below. The wing 15 gradually rises while being pressed along the slope of the wing 15.
When it comes off, it is sent upward by the pushing force.

Here, FIG. 3 showing the positional relationship between the screw blade 2 and the rotating member 12 will be explained. This third
The figure shows a plan view taken along the line A-A in Figure 2, and as mentioned above, the screw blade 2 and the rotating member 12 both rotate in the counterclockwise direction as indicated by the arrow. On the other hand, the pressing head 7 is fixed to the refrigeration casing 1. Arrow P indicates the lower end of the blade 15 of the rotating member 12, that is, the intersection of the pressing portion 14 and the blade 15, and arrow Q indicates the upper end of the screw blade 2. Here, when the lower end P of the blade 15 is set to be in a position that almost overlaps the upper end Q of the screw blade 2 in the axial direction, the thick blade 8 and the thin blade 9
The ice pushed up from the upper ice outlet 10' of the ice compression passage 10 between the screw blade 2 and the upper end 2a of the screw blade 2
When the ice passes through, the ice pushed up into the ice compression passage 10 is pushed up most strongly, and the ice is pushed up into the ice compression passage 10.
When it is blocked by ice, it is pushed up most strongly and compressed to form a hard ice. Furthermore, in order to set the lower end P of the blade to be shifted from the position of the upper end Q of the screw blade in the rotational direction, that is, in the counterclockwise direction, when using a member in which the position of the protrusion 16 of the rotary member 12 is changed, Due to the misalignment between the upper end 2a of the screw blade 2 of the screw shaft 3 and the pressing part 14, the degree of ice compression by the pressing part 14 is reduced, resulting in relatively soft ice.

If it is desired to reduce the hardness of the ice chips, the rotating member 12 shown in FIG. 2 may be reversed to form a rotating member 12' as shown in FIG. Further, if it is desired to change the ice chips into flakes, this can be achieved by using a rotating member (FIG. 5) in which the pressing portion 14 is removed with a cutter or the like.

As described above, the columnar ice compressed from the ice compression passage 10 by the pressing part 14 and the blades 15 of the rotating member is further lifted by the ice pushed up from below and bent to an appropriate length. The ice cubes are stored in an ice storage tank via the guide tube 19 and released to the outside as necessary.

In the rotating member 12 described above, the ice compression passage 10
By increasing the occupied area of the pressing part 14 with respect to the ice outlet, the amount of ice to be compressed can be increased, thereby obtaining relatively hard ice, and by decreasing the occupied area, relatively soft ice can be obtained.

Furthermore, if fine, irregularly shaped granular ice is desired, the rotating member 12 for chip ice having the pressing part 14 and the blades 15 may be replaced with the rotating member 12' for flake ice having no pressing part. this is,
Since the rotating member 12' does not have a pressing part, the fine granular ice passing through the ice compression passage 10 of the pressing head is not compressed by the pressing part and is pushed out from the upper ice outlet 10' as it is. After being cut by the tapered portion 15a, it is sent upward and stored.

As described above, the auger-type ice maker of the present invention includes a rotating member having a pressing portion and a blade, and the rotating member has a specific relationship with respect to the upper end of the screw blade.
Since it is configured to be removable and can be flipped up and down, you can easily obtain ice of different ice quality.
Moreover, the operation of reversing and attaching and detaching the rotating member can be easily performed without replacing the pressing head.

[Brief explanation of the drawing]

Figure 1 is a longitudinal cross-sectional view of the auger-type ice maker of the present invention.
Figure 2 is an exploded perspective view of various parts including the press head of the auger ice maker of the present invention, and Figure 3 is line A-A in Figure 2.
4 is a perspective view showing an example of the rotating member shown in FIG. 2 inverted, and FIG. 5 is an exploded perspective view showing another embodiment of the rotating member shown in FIG. 2. It is. 1...Frozen casing, 2...Screw blade,
2a... Upper end of the screw blade, 3... Screw shaft, 3a... Screw blade support part, 3b... Pressing head penetration part, 7... Pressing head, 8... Thick blade, 9...
Thin blade, 10...Ice compression passage, 11...Cylindrical part, 1
2, 12'...Rotating member, 13...Supporting cylindrical part,
14... Pressing part, 15... Wing.

Claims (1)

[Scope of utility model registration request] a screw shaft rotatably disposed within the freezing casing and having a large-diameter screw blade support portion and a small-diameter press head penetrating portion located above the screw shaft; a pressing head supported by the freezing casing so as to surround the penetrating part, the pressing head includes a cylindrical part surrounding the pressing head penetrating part, and a cylindrical part surrounding the pressing head penetrating part, spaced apart in the circumferential direction on the outer circumferential surface of the cylindrical part; The screw blade includes a plurality of fixed blades formed to extend in the axial direction and define a plurality of ice compression passages, and an upper end portion of the screw blade in the screw blade support portion extends to the vicinity of the pressing head penetration portion. The auger type ice maker further includes a rotating member attached to an extension extending upward from the press head penetrating portion, the rotating member including a support cylindrical portion detachably fixed to the extension; The support cylindrical part has a pair of blades which are inclined in the same direction and spaced apart from each other with respect to the axis thereof on the outer circumferential surface of the support cylindrical part, and a pressing part which connects the ends of the pair of blades, and has a vertical relationship. Reverse first state and second state
In the first state, the upper end of one of the blades is axially spaced apart from and directly above the upper end of the screw blade, and the lower end is located downstream of the upper end with respect to the rotational direction of the screw shaft, the lower end of one of the blades and the lower end of the other blade are connected by the pressing part, and in the second state, the blade An auger-type ice maker, wherein an upper end of one of the screw blades is located directly above the upper end of the screw blade, and a lower end is located upstream of the upper end with respect to the rotational direction of the screw shaft.