JPH0672729B2 - Auger ice machine - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Use The present invention is installed in a kitchen room of a restaurant / cafe, hotel, restaurant, snack, etc., and a commercial facility, and is used for cooling drinks such as juice and cola. The present invention relates to an auger type ice maker mainly used for commercial purposes for producing ice.

(B) Conventional technology The structure of the ice making part of an auger type ice making machine is generally in actual use.
-85167 publication. That is, a freezing cylinder in which an auger for shaving ice growing on the inner wall of the freezing cylinder is rotatably inserted, and an ice compression path for compressing the shaving ice transferred upward by the auger are provided in the periphery, An upper bearing fitted and fixed to the upper opening of the refrigerating cylinder and an upper outer peripheral surface of the refrigerating cylinder are joined and fixed to receive an ice piece that breaks out from the end surface of the upper bearing inside, and this ice It consists of an ice shooter that has an impeller that sends pieces to the ice bin.

Here, when attaching the freezing cylinder and the ice shooter together, conventionally, in consideration of waterproofing at the connecting part, the ice shooter is made entirely of rubber, and this rubber ice shooter is used as the freezing cylinder. After fitting, it was uniformly tightened with a band from the outer periphery to fix it to the freezing cylinder and waterproof it.

(C) Problems to be Solved by the Invention However, according to this conventional fixing method, since the ice shooter is made of rubber, the desired effect can be obtained with respect to waterproofing, but the fixing is performed by the band. There was always the possibility of loosening. For example, if ice clogging near the ice outlet of the ice shooter, the torque force acts by the rotation of the adidate to hang the ice shooter body, or the auger's ice-feeding action also causes the ice It happens that the shooter body is lifted up. As described above, during ice making, the ice shooter main body may rotate or may be lifted upward, and as a result, the ice shooter main body and the freezing cylinder may not be completely waterproofed. Also, the ice shooter is made entirely of rubber, which increases cost, and
Since this rubber ice shooter is fitted into the freezing cylinder, the fitting is not easy, and the fitting workability such as tightening of the band is inefficient.

The present invention has been made in view of the above points, and an auger designed to reliably fix an ice shooter to a freezing cylinder, to obtain a stable sealing effect, and at low cost to facilitate installation work. An object of the present invention is to provide an ice making machine.

(D) Means for Solving the Problem The present invention is a cooling cylinder that is cooled from the surroundings by a cooler, and a refrigerating cylinder in which an auger is rotatably inserted therein, and an auger shaft support that is fixedly installed in an upper opening of the refrigerating cylinder. And an upper bearing that compresses the ice pieces by the auger into ice pieces, and an ice shooter that is coupled and attached to the freezing cylinder and that receives the ice pieces and that guides the ice pieces to the outside by an impeller or the like provided inside. In an auger type ice making machine, between an end surface of the cooler and a plurality of fixing members for loosely fitting an ice shooter fixing ring for fixing the ice shooter to the freezing cylinder and for fixing and fixing the upper bearing to the freezing cylinder. The ice shooter is put on the freezing cylinder by interposing a rubber bush between the freezing cylinder and the freezing cylinder. The lower end is fixed to a plurality of bent portions provided around the ice shooter fixing ring with a plurality of stators inserted from the outside, and the bent portions and the fixing member abut each other in the circumferential direction. The ice shooter is arranged so that the ice shooter is prevented from rotating by this contact.

(E) Action The freezing cylinder and the ice shooter are sealed with a rubber bush interposed between them. The ice shooter fixing ring is sandwiched between the end surface of the cooler and the fixing member for fixing the upper bearing, and is fixed so as not to move in the vertical direction beyond the gap between them. On the other hand, the rotation stop of the ice shooter fixing ring is performed in such a relationship that a bent portion provided upright around the ice shooter fixing ring abuts the fixing member in the circumferential direction. This bent portion is also a fixed portion such as a stator (a screw or a bolt) that fixes the ice shooter. Therefore, the ice shooter fixing ring is vertical,
And, it is installed with some play in the rotation direction, the ice shooter is fixed to this ice shooter fixing ring, and it is installed so that it can be easily installed and removed without directly fixing it to the freezing cylinder as in the past. There is.

(F) Example An example of the present invention will be described below with reference to the drawings.

FIG. 1 shows a front sectional view of an auger type ice making machine according to the present invention. In the figure, the ice storage 1 is on the left and the ice making unit 2 is on the right.
Although not shown, a unit chamber 3 accommodating a refrigeration system mechanism such as a compressor and a condenser together is provided by being completely divided into two. The ice making unit 2 and the freezing mechanism are so-called mechanical units. The unit base 4 of the machine room unit in the unit room 3 can be pulled out forward from the unit room 3 by the guide rails 5, 5 at both ends, so that the ice making section 2 and the refrigeration system mechanism can be easily repaired and inspected. I am letting you. Mounted on the unit base 4 are a motor 6 which is a power source of the auger described below, a speed reducer 7 which transmits deceleration power to the power source, and a cylindrical cooler 8.

A freezing cylinder 9 is fixedly installed inside the cooler 8, and an auger 10 (fourth cylinder) provided in the freezing cylinder 9 is provided.
(Refer to the drawing), the ice layer that grows on the inner wall of the freezing cylinder 9 is scraped off, and the ice cutting pieces are the ice compression paths 12 of the upper bearing 11 provided on the upper part of the freezing cylinder 9 (see FIGS. 3 and 4) Sent to. The upper bearing 11 is a rotary shaft 10 of the auger 10.
a The upper part is axially supported, and a plurality of recessed grooves provided around it are used as the ice compression path 12. The compressed ice blocks that have become rod-shaped in the ice compression path 12 are divided into small pieces of ice i when they leave the ice compression path 12.

These ice pieces i are guided into the ice shooter 13 that is waterproofly connected to the freezing cylinder 9, and when the ice pieces i accumulate, the impeller 15 of the agitator 14 connected to the upper end of the rotating shaft 10a of the auger 10 Is introduced into the ice storage 1 via the ice discharge cylinder 16. Reference numeral 17 is an ice storage sensor provided in the ice storage 1, and when the ice amount becomes a predetermined amount or less, it detects it and makes the ice making unit 2 inoperative. Reference numeral 18 is a limit sensor for safety protection which operates to stop the ice making operation of the ice making unit 2 when the ice storage sensor 17 does not operate normally. The ice discharging cylinder 16 is obliquely connected to and separable from the ice outlet portion 13a of the ice shooter 13, and its advantages will be described later.

By the way, when the ice shooter 13 is fixed to the outer peripheral body of the freezing cylinder 9, unless the seal between the two 13 and 9 is made completely, the water melted in the ice shooter 13 will leak out. According to the present invention, this seal is perfect, and the ice shooter 13 can be mounted and fixed to the freezing cylinder 9 in a simple operation. The details will be described based on the enlarged sectional view of the shooter portion of FIG. 2, the transverse sectional view of FIG. 3, and the exploded perspective view of FIG. 4 in addition to FIG.

First, the ice shooter 13 is made of synthetic resin such as polyethylene rather than rubber. The freezing cylinder 9 is made of stainless steel as usual. The seal between the ice shooter 13 and the freezing cylinder 9 is a rubber bush 20.
Done in. In this way, by interposing the rubber bush 20 between both the hard parts 9 and 13, the rubber bush
20 crushes himself and seals the water. The rubber bush 20 has a plurality of protrusions 21 and 22 formed in an annular shape on the inner surface side and the outer surface side thereof, and the peak portion thereof is crushed so that a sealing action is exerted. This rubber bush 20 is a freezing cylinder 9
The ice shooter 13 is fitted on the outer peripheral surface of the. Conventionally, since an ice shooter 13 made entirely of rubber is fitted on the outer peripheral body surface of the freezing cylinder 9, the contact area thereof receives a large resistance, and the thick portion of the rubber shooter 13 is crushed as a whole. It requires a very large force and is difficult to mount.
When only the contact point is touched and the contact point is crushed, the rubber bush 20 can be smoothly inserted into the freezing cylinder 9 and the ice shooter 13 can be pressed into the rubber bush 20, and a reliable seal can be obtained. The ice shooter 13 is simply inserted into the rubber bush 20, so it can be easily removed as it is. So ice shooter fixing ring
Use 23. The ice shooter fixing ring 23 is made of a single stainless steel plate having a hole 24 slightly larger than the outer diameter of the freezing cylinder 9 in the center as shown in FIG.
It is an annular plate in which three bent portions 25, 25, 25 are provided on the outer periphery at equal intervals, and screw holes 26 are provided in the bent portions 25, 25, 25. The ice shooter 13 is fixed by externally fixing a stator, for example, three thumb screws 27 into the screw holes 26 of the ice shooter fixing ring 23. An auger 10 is rotatably inserted in the freezing cylinder 9. 11 is an upper bearing that supports the upper part of the auger 10,
It is fixed in the upper opening 9a of the freezing cylinder 9. Then, in connection with the fixing of the upper bearing 11, the ice shooter 13 and the ice shooter fixing ring 23 are fixed. Next, this point will be described together with the whole assembly.

A cylindrical cooler 8 having a cooling pipe (not shown) wound around the freezing cylinder 9 and surrounded by a heat insulating wall (not shown) covers the upper end of the cylindrical cooler 8 to a large extent. It has a face 8A. The upper portion of the freezing cylinder 9 projects from the cover surface 8A. Therefore, first, the ice shooter fixing ring 23 is fitted into the outer periphery of the freezing cylinder 9 and placed on the cover surface 9A. Since the ice shooter fixing ring 23 is slightly larger than the freezing cylinder 9, the ice shooter fixing ring 23 can be smoothly inserted even without the method of press fitting. Of course, the auger 10 and the upper bearing 11 are put in the freezing cylinder 9 in advance.
Then, after this, the upper bearing 11 is fixed in the freezing cylinder 9. The fixing is performed by three hexagon bolts 30, 30, 30 which are passed from the outside of the freezing cylinder 9. By the way, on the upper bearing 11, three thick projections 28 and three thin projections 29 are alternately projected at equal intervals, and the ice compression paths 12, 12 are formed between them. A screw hole 31 is provided below the three thick protrusions 28. On the other hand, the outer peripheral surface of the freezing cylinder 9 is also provided with a mounting hole 32 that matches the screw hole 31 when the upper bearing 11 is fitted. Therefore, as shown in FIG. 4, the hexagon bolts 30,30,30 have the collar 33 and the washer 34 passed through their screw shafts, respectively, and from the mounting holes 32,32,32 to the screw holes 31,3 of the upper bearing 11, respectively.
Securely fixed by screwing to 1,31. As a result, as shown in FIG.
Is sandwiched between the cover surface 8A and the lower edge 34l of the washer 34, and its vertical movement is stopped so that it cannot move more than the gap between the both 8A and 34A. Then rubber bush
20 is fitted into the outer peripheral surface of the freezing cylinder 9. The rubber bush 20 fits in such a way that the inner projections 22, 22, 22 are crushed, and there is no front contact with the freezing cylinder 9, so a large force is not required for this fitting and it can be inserted easily. You can After that, the ice shooter 13 is put on the rubber bush 20. In this case as well, the ice shooter 13 is fitted by crushing the several protrusions 21, 21, 21 on the outside of the rubber bush 20, and since there is no front contact between them, they can be fitted easily. The ice shooter 13 has a small diameter portion 35 formed by constricting a portion of the ice shooter 13 that fits with the rubber bush 20 inward. This is because if the ice shooter 13 is a simple cylinder with the same inner diameter, the freezing cylinder 9 will have a dimensional error during manufacturing.
This is because there is a concern that the degree of sealing of the rubber bush 20 interposed between and will be insufficient, so that it can be absorbed and a sufficient sealing effect can be obtained. Thus finally 3
Insert two thumbscrews 27,27,27 into the insert holes 36,36,36 formed in the bottom hem of the ice shooter 13, and screw holes of the three bent parts 25,25,25 of the ice shooter fixing ring 23. Screw in 26 and fix. As a result, as shown in FIG. 3, the bent portions 25, 25, 25 of the ice shooter fixing ring 23 and the heads 30a of the hexagon bolts 30, 30, 30 are located on the circumference of the same radius. , 25 and 30 come into contact with each other, and the ice shooter fixing ring 13 is prevented from moving in the rotational direction.
In this way, the ice shooter 13 is fixed while being prevented from moving in the rotational direction. During the actual ice making operation, the ice shooter 13 is dragged and rotated in the rotation direction of the impeller 15, but at that time, the bent parts 25, 25, 25 are bent on the hexagon bolts 30, 30, 30.
Only a slight rotation is allowed to reach the position where is hit, and further rotation is blocked.

As described above, the ice shooter 13 is the freezing cylinder 9
To the ice shooter fixing ring 23 instead of being directly fixed to the freezing cylinder 9 by being sealed with the rubber bush 20 on the auger 10 and the impeller 15.
It is securely fixed so that it does not rotate due to the rotation of and also does not come off in the vertical direction. Assembly is also easy because the hard ice shooter 13 made of synthetic resin and the refrigerating cylinder 9 made of hard metal are also assembled. In addition, the thumbscrew 2
It can be easily done by attaching and detaching three 7,27,27. The cost of the parts for fixing the ice shooter 13 can be extremely low because only the rubber bush 20 and the ice shooter fixing ring 23 are needed, considering the method of call. Since the ice shooter 13 contains ice inside and sweats, the heat insulators 37 and 38 prevent dew condensation.

By the way, as you can see from Figure 1, the ice shooter
The ice outlet portion 13a of 13 is cut short, and an ice discharging cylinder 16 is detachably attached to this, and the unit base 4 can be easily pulled out from the unit chamber 3 by removing the ice discharging cylinder 16. Further, the ice discharge cylinder 16 and the ice outlet portion 13a are cut 40 so that the joint surface thereof has an elliptical shape, and the fitting area of the both 16 and 13a can be made large, so that the joint surface is surely stable without shaking. It can be combined. The coupling of the both 16 and 13a is performed by fitting the concavity and convexity 41. If the cut surface is parallel to the unevenness 14, the area of the fitting portion between the two is small and the connection becomes unstable, which is disadvantageous. The material of the ice discharge cylinder 16 is rubber, and the ice outlet portion 13a is made of polyethylene.
The tip of the ice discharge cylinder 16 is projected to the center line P of the ice storage 1. By doing so, it is possible to maximize the amount of ice accumulated in the ice storage 1. In addition, by arranging the position of the ice storage sensor 17 on the extension line of the ice discharge cylinder 16, not only can the detection of the ice storage sensor 17 be ensured, but also the state of ice connection during the ice storage state can be made difficult to bridge. Becomes That is, as shown in FIG. 1, the ice storage sensor 17 detects ice storage in a state where the ice i is not clogged enough to fill the inside of the ice discharge cylinder 16, and the ice making stops, so that it is safe. Operating the ice storage sensor 17 with the bridge in a state where the inside of the ice discharge cylinder 16 is not completely blocked has the following advantages. It is assumed that the bridge occurs when the outside temperature is low, and the bridge is kept in the state shown in Fig. 1. Then, when the customer takes out the ice from the ice storage 1 and the ice around the ice storage detection sensor 17 disappears, ice making resumes. To be done. Even if ice is made by the restart of ice making and is carried out one after another by the impeller 15, there is still space in the upper part of the ice outlet 13a and the upper part of the ice discharge cylinder 16, so keep sending ice without clogging. You can Of these, the lower half of the bridged ice is also shipped. Therefore, ice does not get stuck in the ice shooter 13. On the contrary, if ice is carried out while the ice outlet 13a is full of ice and the ice is bridged when the ice storage is stopped, the ice making section is instantly forced to cause a failure. This is because the ice release cylinder 16 of the ice shooter 13 is horizontal,
It is a phenomenon that often occurs when the position of the ice storage sensor 17 is short and is high. Of course, if the ice storage sensor 17 fails, the ice will naturally clog the ice shooter 13,
In that case, in the ice making machine, the limit sensor 18 detects ice and the operation of the ice making machine is immediately stopped.

(G) Effects of the Invention As described above, according to the present invention, by sandwiching the rubber bush between the freezing cylinder and the ice shooter,
The seal structure is reliable and less expensive than conventional ones. Also, instead of directly attaching the ice shooter to the freezing cylinder as in the past, an ice shooter fixing ring for fixing the ice shooter is provided, and this ice shooter fixing ring is the end face of the cooler for cooling the freezing cylinder, It can be easily installed and installed between the freezing cylinder and the fixing member that fixes the upper bearing, with vertical and rotational movements restricted, and finally the ice shooter is fixed to this ice shooter fixing ring. By doing so, the ice shooter is securely fixed. Therefore, the sealing performance of the ice shooter can be stabilized, the ice shooter can be prevented from coming off, and the ice shooter can be easily attached and detached. Also, the number of required parts is small and the cost can be reduced. In addition, by tilting the ice exit part of the ice shooter downward and cutting the cut surface vertically,
It is difficult to pull out the ice discharge cylinder connected to this ice outlet, it can be combined without shaking, and by extending the ice discharge cylinder to the center of the ice storage, the ice storage capacity is increased, ice bridge prevention ice pressure feeding power It is possible to obtain derivative effects such as reduction of

[Brief description of drawings]

1 is a front sectional view of an ice making machine according to the present invention, FIG. 2 is an enlarged view of a shooter portion of FIG. 1, and FIG. 3 is X- of FIG.
Fig. 4 is a cross-sectional view of part X, and Fig. 4 is an overhead view of the parts of Fig. 2 disassembled. 8 ... Cooler, 9 ... Freezing cylinder, 10 ... Auger, 11 ... Upper bearing, 13 ... Ice shooter, 16 ... Ice discharge cylinder, 20 ... Rubber bush, 21, 21 ... Projection Department, 23 ...
… Ice shooter fixing ring, 25 …… bend, 27 …… stator, 30 …… hexagonal bolt, 34 …… washer.

Claims (1)

[Claims] 1. A refrigerating cylinder that is cooled from the surroundings by a cooler and has an auger rotatably inserted therein, and is fixedly installed in an upper opening of the refrigerating cylinder and compresses an auger shaft and an ice shaving piece by the auger. In an auger type ice maker, which comprises an upper bearing serving as an ice piece, and an attachment to the freezing cylinder, which receives the ice piece and has an ice shooter for discharging the ice piece to the outside by an impeller or the like provided inside, An ice shooter fixing ring for fixing a shooter is loosely fitted in the freezing cylinder, and is sandwiched between a plurality of fixing members for fixing and fixing the upper bearing to the freezing cylinder and the end surface of the cooler, and the freezing cylinder A plurality of rubber bushes are inserted between the ice shooter and the freezing cylinder to cover the lower end of the ice shooter from the outside. Is fixed to a plurality of bent portions that are erected around the ice shooter fixing ring with the stator, and the bent portions and the fixing member have a positional relationship of abutting each other in the circumferential direction. An auger-type ice making machine characterized in that the ice shooter is fixed against rotation by contact.