JP2002062005A - Ice making apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve bridges due to icing of crushed ice in a hopper type ice storage and reliably carry and discharge the crushed ice to its end along a trough. SOLUTION: The apparatus comprises an ice making machine 1 for making fine ice such as crushed ice g, a hopper type ice storage 2 for storing ice made by the machine 1, a crusher 3 for crushing ice in the storage 2, and a discharging screw conveyer 4 for dropping ice in a U-trough provided in the bottom of the storage 2 and carrying it to the end of the trough 5 by a screw to discharge it from the storage 2. The screw 6 of the conveyer 4 comprises a blade assembly 9 composed of two types of blades 9a, 9b different in lead length alternately formed at their respective required lengths on a screw shaft 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice making apparatus, and more particularly, to an ice making machine for producing fine ice such as crushed ice, a hopper-type ice storage for storing ice produced by the ice making machine, and A crusher for breaking the frozen ice in the ice storage, and a discharge screw conveyor for dropping ice into a U-shaped trough provided at the bottom of the ice storage, transporting it to the end of the trough by a screw, and discharging from the ice storage. The present invention relates to an improvement in a screw conveyor for discharging in an ice making device provided with the above.

[0002]

2. Description of the Related Art FIG. 5 is a vertical sectional side view showing an example of the ice making apparatus, and FIG. 6 is a sectional view taken along line Y--Y of FIG. In these figures, reference numeral 1 denotes an ice maker for producing fine ice having a side length of about 10 to 15 mm, i.e., ice crushed g. It is dropped into the warehouse 2 and stored. 3 is a pair of left and right crushers provided on the upper side in the ice storage 2;
The ice crushed ice g in the ice storage 2 is broken. Reference numeral 4 denotes a screw conveyor for discharging the crushed ice g stored in the ice storage 2. The crushed ice g in the ice storage 2 is dropped into a U-shaped trough 5 provided at the bottom of the ice storage 2, and the trough is screwed by the screw 6. It is conveyed to the end along the line 5 and is discharged to a measuring device (not shown) below the discharge chute 7. Although not shown, the ice crushed ice g discharged from the ice storage 2 by the discharge screw conveyor 4 and measured by the measuring device is transported from the distributor to a predetermined ice crushing supply point by another screw conveyor. ing.

[0003]

SUMMARY OF THE INVENTION In the above ice making apparatus, a hopper type ice storage 2 manufactured by an ice making machine 1 is provided.
The crushed ice g thrown into the inside is stored in the ice storage 2, and the crushed ice g is frozen by the crusher 3, while the U of the screw conveyor 4 for discharging at the bottom is removed.
It is dropped into the trough 5 and is conveyed along the trough 5 to the discharge chute 7 at the end by the screw 6. The crushed ice g frozen on the bottom side of the ice storage 2 is also crushed by the crusher 3. It is difficult to break the ice, and as shown in FIG. 6, the frozen ice g adheres to the inner wall surface of the ice storage 2 near the opening of the trough 5 to cause a bridging phenomenon. g cannot be dropped, and although the screw 6 rotates, a gap S is formed between the outer periphery of the screw 6 and the crushed ice g, which may make it impossible to transport the crushed ice g.

[0004] When the crushed ice g cannot be conveyed by the discharge screw conveyor 4 due to the bridge phenomenon of the crushed ice g at the bottom side of the ice storage 2, the ice storage 2 is hit with a hammer to give an impact or vibration. For example, there is a problem in that even if an attempt is made to eliminate the bridge of the frozen ice g, the bridge cannot be sufficiently eliminated and the ice storage 2 is damaged.

According to the present invention, when the crushed ice g in the ice storage 2 freezes near the opening of the U-shaped trough 5 to form a bridge, the bridge is eliminated, and when the bridge is about to be formed, It is an object of the present invention to provide an ice making device capable of reliably transporting and discharging crushed ice along a trough 5 of a screw conveyor 4 for discharging to an end thereof while preventing the formation of the bridge.

[0006]

The invention according to claim 1 is
An ice maker 1 for producing fine ice such as crushed ice g, a hopper-shaped ice storage 2 for storing ice produced by the ice maker 1, a crusher 3 for crushing ice in the ice storage 2, and an ice storage 2 And a discharge screw conveyor 4 for dropping ice into a U-shaped trough 5 provided at the bottom of the trough, transferring the ice to an end of the trough 5 by a screw 6, and discharging the ice from the ice storage 2. Screw 4
Is characterized in that two types of blade portions 9a and 9b having different lengths of leads are alternately formed on the screw shaft 8 by a required length in the same direction.

A second aspect of the present invention is the ice making device according to the first aspect, wherein the blade 9 of the screw 6 is provided with a screw shaft 8
A blade member M1 formed with a certain thread pitch P above
Is formed by spirally winding a plurality of blade members M2 having the same screw pitch P.

[0008]

1 is a longitudinal sectional side view of an ice making apparatus according to the present invention, and FIG. 2 is a sectional view taken along line XX of FIG. In this ice making device, the screw conveyor 4 for discharging is shown in FIGS.
The ice making machine 1, the hopper type ice storage 2 and the crusher 3 have the same configuration except for the conventional apparatus shown in FIG.

The screw conveyor 4 for discharging includes a trough 5 having a substantially U-shaped cross section formed at the bottom of the hopper type ice storage 2, a screw 6 rotatably disposed in the trough 5, and a screw 6. The screw 6 comprises a blade 9 on a screw shaft 8 in which two types of blade portions 9a and 9b having different lengths of leads are alternately formed in the same direction by a required length. I have. Here, the lead is the distance that each blade 9a, 9b moves in the axial direction by one rotation of the screw shaft 8, and the lead of the blade 9a is longer than the lead of the blade 9b.

The screw 6 of the screw conveyor 4
3 will be described in more detail with reference to FIG. 3. The blade 9 of the screw 6 includes a part of a blade member M1 formed on the screw shaft 8 at a certain screw pitch P, and a blade 9 of the same screw pitch P. The blade member M2 (shown in a satin pattern in FIG. 3) is formed by double spiral winding, and a portion formed by overlapping both blade members M1 and M2 becomes a blade portion 9b, and other portions are formed. The portion becomes the blade 9a. If the screw pitch P of the blade members M1 and M2 is, for example, 240 mm, the screw pitch of the blade portion 9b formed by doubly overlapping the two blade members M1 and M2 is P /
2, the lead Lb of the blade portion 9b is 120 mm. Further, since the screw pitch of the blade portion 9a is P, it becomes 240 mm, and the lead La thereof becomes 240 mm.

As described above, the blades 9 of the screw 6 are formed by alternately forming the blade portions 9a having the long leads La and the blade portions 9b having the short leads Lb in the same spiral direction in the axial direction by a required length. Therefore, in the blade portion 9b having the short lead Lb, the conveyance speed of the crushed ice g, which is the conveyed material, is slower than that in the blade portion 9a having the long lead La.
Since it is 40 mm, the transport speed of the crushed ice g at the blade 9b is １ ／ of the transport speed at the blade 9a.

As shown in FIG. 1, each of the left and right crushers 3 provided in the ice storage 2 is connected to both ends of a rotary drum 11 having a large number of spikes 12 protruding radially on the outer peripheral surface thereof. The shaft is mounted on a required portion and the rotating drum 11
One end of the crusher is connected to a motor 13, and the rotating drums 11, 11 of the crushers 3, 3 are rotated in the direction shown in FIG. I have.

The operation of the discharge screw conveyor 4 provided with the screw 6 constructed as described above will be described. First, the crushed ice g stored in the hopper type ice storage 2 is described.
While being crushed by the crusher 3, gradually descends to the bottom side of the ice storage 2 by its own weight, falls into the U-shaped trough 5 of the screw conveyor 4, and
Is transported along the trough 5 to the discharge chute 7 at the end thereof. In this case, the blade 9 of the screw 6 pivots the blade 9a of the long lead La and the blade 9b of the short lead Lb. Are formed alternately by the required length in the same spiral direction in the direction, and the crushed ice g
Since the transport speed of the crushed ice g is slow at the blade portion 9b, the transport speed of the crushed ice g is reduced at the blade portion 9b. When the crushed ice g moves to the blade portion 9b having a lower conveying speed, the crushed ice g is
Since it is held at the bottom of the trough 5,
Swells upward from the opening side.

The crushed ice g thus raised is directly pushed by the crusher 3 or the crushed ice g pushes up another crushed ice g in the ice storage 2 and the pushed up crushed ice g is moved by the crusher 3 as shown in FIG. Even if a bridge of crushed ice g is formed in the ice storage 2 because the crushed ice is broken, the bridge is eliminated and the crushed ice g is likely to freeze near the opening of the trough 5 to form a bridge. However, the formation of the bridge is prevented. In this case, since there are a plurality of blade portions 9b having a slow conveyance speed along the longitudinal direction of the screw 6, a destruction effect due to the swelling of the crushed ice g acts on the plurality of wing portions 9b, and the bridge of the crushed ice g is effectively eliminated. Is done. Thereby, the crushed ice g in the hopper type ice storage 2 is sequentially dropped into the trough 5 and is reliably transported by the screw 6,
It is dropped and discharged to a measuring device (not shown) below the discharge chute 7.

The screw 6 shown in FIG. 3 includes a blade member M1 having the same screw pitch P as a part of a blade member M1 formed on the screw shaft 8 at a certain screw pitch P.
Since the blades 9 composed of the two types of blade portions 9a and 9b having different lengths of the leads are formed by doubly spirally winding 2, it can be manufactured relatively inexpensively using a ready-made screw. is there. In the case of this screw 6, the blade member M2 is spirally wound around the blade member M1 twice, but is not limited to double, and it is also possible to spirally wind three or more layers. .

FIG. 4 shows a screw 6 according to another embodiment. The blades 9 of the screw 6 are formed on the screw shaft 8 by alternately forming two types of blade portions 9a and 9b, each having a required length, of a blade portion 9a having a long screw pitch Pa and a blade portion 9b having a short screw pitch Pb. It consists of a series of blade members M. In this case, if the screw pitch Pa of the blade portion 9a is, for example, 240 mm and the screw pitch Pb of the blade portion 9b is, for example, 120 mm, the lead La of the blade portion 9a is 240 mm, which is the same as the screw pitch Pa, and the lead Lb of the blade portion 9b is also Since the screw pitch Pb is 120 mm, which is the same as the screw pitch Pb, the conveyance speed of the crushed ice g at the blade 9b is
Therefore, like the screw 6 shown in FIG. 3, during the transportation of the crushed ice g, the crushed ice g conveyed by the wing 9a having the higher conveyance speed becomes the wing 9b having the lower conveyance speed.
Then, the crushed ice g rises upward from the opening side of the trough 5 in the blade portion 9b, and the crushed ice g
Bridge is eliminated.

According to the screw 6 shown in FIG. 4, the blade 9 is formed by a series of blade members.
The movement of the crushed ice g at the boundary between the one blade 9a and the other blade 9b can be smoothly performed.

[0018]

According to the first aspect of the present invention, the screw of the discharge screw conveyor has blades in which two types of blades having different lengths of leads are alternately formed on the screw shaft by a required length. In the case of long reed wings, the speed of ice crushing is high, and in the case of short reed wings, the speed of ice crushing is low. When the crushed ice moves to the blade with the slower transport speed, the crushed ice rises upward from the opening of the trough at that blade, and the crushed ice thus rises directly by a crusher, or the crushed ice breaks up into another in the ice storage. The crushed ice is pushed up and the crushed ice is crushed by a crusher, thereby forming a crushed ice bridge in the ice storage. Can have, the bridge is eliminated, also even broken ice formation likely to state a bridge near the opening of the trough, the formation of the bridge is prevented.

According to the second aspect of the present invention, a plurality of blade members having the same screw pitch are spirally wound around a part of the blade member formed with a certain screw pitch on the screw shaft. Since the blade is formed of the two types of blades having the reeds, it is possible to manufacture the blades of the two types of blades having different reeds relatively inexpensively by using a ready-made screw.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view of an ice making device according to the present invention.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is an enlarged detailed side view of the screw.

FIG. 4 is an enlarged detailed side view of a screw according to another embodiment.

FIG. 5 is a vertical sectional side view showing a conventional ice making device.

FIG. 6 is a sectional view taken along line YY of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ice machine 2 Ice storage 3 Crusher 4 Screw conveyor for discharge 5 Trough 6 Screw 8 Screw shaft 9 Blade 9a, 9b Blade La, Lb Reed

Claims (2)

[Claims] An ice maker for producing fine ice such as crushed ice,
A hopper-type ice storage that stores ice produced by an ice machine, a crusher that breaks the ice in the ice storage, and a U-shaped trough provided at the bottom of the ice storage. An ice making device with a screw conveyor for discharging to the side and discharging from the ice storage,
An ice making device, wherein the screw of the discharge screw conveyor has blades in which two types of blade portions having different lengths of leads are alternately formed on a screw shaft by a required length. 2. The blade of the screw is formed by spirally winding a plurality of blade members having the same screw pitch on a part of the blade member formed at a certain screw pitch on the screw shaft. 2. The method according to claim 1, wherein
The ice making device according to claim 1.