JP5073614B2 - Auger ice machine - Google Patents

Description

  The present invention relates to an auger type ice making machine, and more particularly, an auger type ice making machine having an ice making mechanism comprising a freezing casing having an ice making surface cooled by a refrigeration circuit and an auger having a rotary blade facing the ice making surface. It is about.

  FIG. 16 is a schematic configuration diagram showing an auger type ice making machine with the ice making mechanism section broken. The auger type ice making machine 10 includes an ice making mechanism 12 including a refrigeration casing 13 disposed on an upper portion of a housing 11 and an auger (rotary blade) 14 disposed inside the refrigeration casing 13. In addition, the auger type ice making machine 10 has a fixed blade 15 disposed in the upper part of the refrigeration casing 13, a driving means 16 such as a geared motor for rotating the auger 14 at a predetermined rotational speed, and a water supply pipe 18. And a reservoir tank (ice making water tank) 17 connected to the refrigeration casing 13. The refrigeration casing 13 includes a cylinder 20 having an inner wall surface as an ice making surface 21 and a cooling pipe 22 spirally wound around the outside of the cylinder 20 as an evaporator of a refrigeration circuit (not shown); And a heat insulating material 23 having a required thickness for covering the cylinder 20 and the cooling pipe 22 from the outside. The auger 14 includes a rotary blade 24 that spirally projects from the outer peripheral surface of the cylindrical main body, and the blade tip surface of the rotary blade 24 faces the ice making surface 21 in a non-contact state.

Such an auger type ice making machine 10 supplies ice making water supplied to the reservoir tank 17 to the inside of the ice making mechanism section 12 (between the freezing casing 13 and the auger 14) via a water supply pipe 18 for freezing. By cooling the cylinder 20 of the refrigeration casing 13 by the circuit, ice is generated on the ice making surface 21 that is the inner wall surface of the cylinder 20. When the driving means 16 is driven to rotate the auger 14 at a constant speed in a predetermined direction, the rotary blade 24 conveys the ice generated on the ice making surface 21 upward while peeling. The ice transported upward is pushed by the downward transported ice and collected by the fixed blade 15 and then pushed out to the ice discharge chute 25 connected to the upper side of the ice making mechanism 12 and shown in the figure. It is transferred to the omitted ice storage room. Such an auger type ice making machine is disclosed in Patent Document 1, for example.
Japanese Utility Model Publication 8-3897

  By the way, in the conventional auger type ice making machine 10 shown in FIG. 16, the ice making mechanism 12 and the reservoir tank 17 are arranged apart from each other and connected by a water supply pipe 18, and each of the reservoir tank 17 and the water supply pipe 18 is connected. The outer surface is in contact with the outside air. For this reason, when the ambient temperature of the reservoir tank 17 rises, the temperature of the ice making water stored in the reservoir tank 17 rises, and the warm ice making water is supplied into the ice making mechanism section 12. Therefore, the problem that causes a decrease in ice making efficiency was inherent. Further, in order to prevent the temperature rise of the refrigeration casing 13 and increase the ice making efficiency, the thickness of the heat insulating material 23 provided on the outer peripheral surface of the ice making mechanism portion 12 must be set large, and the size of the ice making mechanism portion 12 is increased. In addition, there is a problem that the manufacturing cost increases due to an increase in the material cost and the number of molding steps of the heat insulating material 23. Further, since the reservoir tank 17 is disposed apart from the ice making mechanism 12, the size of the auger type ice making machine 10 as a whole is increased. Furthermore, the air in the reservoir tank 17 may move and accumulate in the water supply pipe 18, which may hinder the stable supply of ice-making water from the reservoir tank 17 to the refrigeration casing 13.

  Therefore, in the present invention, in view of the problems inherent in the above-described conventional technology, it has been proposed to suitably solve this problem, and it is possible to improve ice making efficiency, downsize the ice making mechanism and the ice making machine itself, It is an object of the present invention to provide an auger type ice making machine capable of reducing manufacturing costs and stably supplying ice making water.

In order to solve the above problems and achieve the intended purpose, the invention according to claim 1 of the present application provides:
An ice making mechanism comprising an refrigeration casing having an ice making surface cooled by a refrigeration circuit and an auger having a rotary blade facing the ice making surface, and supplying ice making water into the ice making mechanism to generate ice on the ice making surface. In the auger type ice making machine that peels and conveys the ice by the rotary blade of the auger that is driven to rotate,
Inside the ice making water storage section where the ice making water is stored, the ice making mechanism is disposed so as to be immersed in the ice making water ,
The auger is formed in a cylindrical shape corresponding to an ice making surface forming a circumferential surface in the refrigeration casing,
The auger has an axis line in a vertical direction by a bearing portion that supports a second circumferential surface opposite to the first circumferential surface on which the rotary blade is provided with a shaft portion so as to restrict the radial movement of the auger. It is characterized in that it is extended and held rotatably .

Therefore, according to the first aspect of the invention, the ice making water stored in the ice making water storage unit comes into contact with the cooled refrigeration casing so that the appropriately cooled ice making water is supplied to the ice making mechanism unit. Therefore, the generation of ice on the ice making surface of the refrigeration casing is promoted, and the ice making efficiency is improved. Further, since the ice making mechanism is disposed in the ice making water storage part, the auger type ice making machine as a whole can be miniaturized. Furthermore, since the ice-making water storage section and the ice-making water stored in the ice-making water storage section function as a heat insulating material for the refrigeration casing, the heat insulating material covering the outer peripheral portion of the refrigeration casing becomes unnecessary or a small amount. Further, the manufacturing cost can be reduced and the manufacturing cost of the ice making machine can be reduced. During ice making, the radial load received from the rotary blade provided on the first peripheral surface can be appropriately received by the shaft portion of the bearing portion that supports the second peripheral surface opposite to the first peripheral surface. In addition, the auger is immersed in ice-making water stored inside the ice-making water storage section, and the ice-making water existing between the auger and the bearing section functions as a lubricant, thus reducing wear of the auger and the shaft section. Can do.

According to a second aspect of the present invention, the ice making water storage portion is provided such that a wall portion facing the peripheral surface of the auger across the shaft portion extends with a gap from the shaft portion. The gist is that the upper end of the portion is configured to communicate with the gap from between the auger and the shaft portion.
According to the second aspect of the present invention, since the wall portion facing the peripheral surface of the auger with the shaft portion interposed therebetween extends with a gap from the shaft portion, the wall portion is insulated. . In addition, since the upper end of the shaft portion is configured to communicate with the ice making water storage portion from between the auger and the shaft portion, the water adhering to the ice making water discharged from the inside of the bearing portion and the ice conveyed to the auger Does not leak to the outside, and can be returned again to the ice making water storage section as ice making water. At this time, foreign matter between the sliding surfaces can be smoothly discharged.

In the invention according to claim 3 , the ice-making water storage unit is set such that the bottom part forming the bottom surface of the ice-making water storage unit has lower thermal conductivity than the refrigeration casing,
The gist of the ice making water storage section is that the bottom is placed on a mounting base, and the refrigeration casing placed on the bottom and the mounting base are fixed with the bottom sandwiched therebetween.
According to the invention which concerns on Claim 3 , since a bottom part functions as a heat insulation member, the heat exchange with a freezing casing and the exterior can be suppressed, and the dew condensation of a mounting base can be suppressed.

The gist of the invention according to claim 4 is that the refrigeration casing is screw-fixed to the lower end surface from below the mounting base via the bottom.
According to the invention which concerns on Claim 4 , the assembly | attachment of a freezing casing is easy.

The gist of the invention according to claim 5 is that the auger includes a hole for guiding ice making water between the ice making surface of the refrigeration casing.
According to the fifth aspect of the present invention, supply failure due to freezing of ice-making water is avoided by supplying ice-making water between the auger and the ice-making surface of the refrigeration casing from the auger side instead of the refrigerated casing to be cooled. obtain.

The gist of the invention according to claim 6 is that the bearing portion includes a mounting portion that is provided so as to extend radially from the shaft portion and restricts the downward movement of the auger.
According to the invention which concerns on Claim 6 , the thrust load of an auger can be supported appropriately by a mounting part.

The gist of the invention described in claim 7 is that the driving means for rotating the auger is disposed above the ice making mechanism, and the driving means is connected to the upper portion of the auger.
According to the invention of 請 Motomeko 7, the generated ice, it is possible to release fall from the top of the auger to the inside of the auger.

The gist of the invention according to claim 8 is that the auger is disposed outside the refrigeration casing, and the ice generated on the external wall surface serving as the ice making surface of the refrigeration casing is peeled off by the auger.
According to the invention of 請 Motomeko 8, auger now enclose the refrigeration casing Overall, the auger itself is to function as a heat insulating material.

The invention according to claim 9 is characterized in that the ice making mechanism is provided with the ice making surface on both inside and outside of the cylindrical refrigeration casing,
The auger is formed in a double cylindrical shape having two inner and outer peripheral walls spaced apart in the radial direction, the inner and outer peripheral walls are arranged so as to sandwich the refrigeration casing, and each peripheral wall faces the ice making surface. The gist is that each of the rotary blades is provided.
According to the ninth aspect of the present invention, by using both the inner and outer surfaces of the refrigeration casing as the ice making surfaces, the ice making amount can be improved without increasing the size of the ice making mechanism.

  According to the auger type ice making machine according to the present invention, it is possible to improve ice making efficiency, downsize the ice making mechanism and the ice making machine itself, and the like.

  Next, an auger type ice making machine according to the present invention will be described below with reference to the accompanying drawings by way of preferred embodiments.

Figure 1 is a schematic block diagram of the auger type ice making machine 30 shown partially broken according to the precondition technique that is a premise of embodiment in describing the present invention, FIG. 2, the auger type ice making assumptions example It is the disassembled perspective view which isolate | separated and showed the main structural members of the machine 30. FIG. The auger type ice making machine 30 of the premise includes an ice making mechanism portion 32 composed of a refrigeration casing 33 and an auger (rotating blade) 34, a driving means 36 for rotating the auger 34 at a constant speed at a predetermined speed, and an ice making mechanism portion 32 inside. And a reservoir tank (ice-making water storage unit) 37 housed in the container. As will be described later, the auger type ice making machine 30 of the premise example has the ice making mechanism portion 32 facing the inside of the reservoir tank 37, and the refrigeration casing 33 and the auger 34 of the ice making mechanism portion 32 are stored in the reservoir tank 37. It is arranged so as to be immersed in ice making water. For convenience of explanation, the direction in which the drive means 36, which will be described later, extends horizontally is the left-right direction of the ice making machine (the left side in FIG. 1 is the left side of the ice making machine and the right side is the right side), The extending direction of the later-described rotating shaft 56 is the vertical direction of the ice making machine (the upper side in FIG. 1 is the upper side of the ice making machine and the lower side is the lower side).

As shown in FIG. 1, the ice making mechanism portion 32 and the reservoir tank 37 have an upper wall of a frame (mounting mount) 38 attached to the upper wall surface of the ice storage chamber 105 in which ice produced by the ice making mechanism portion 32 is stored. The driving means 36 is fixed to the upper wall portion 90 from above. The ice making mechanism 32 and the driving means 36 are appropriately attached to the frame 38 by being connected to a base member 39 described later. Further, as will be described later, the auger type ice making machine 30 of the premise example can be detachably mounted on the upper portion of the auger 34 with an ice collecting member 35 capable of increasing the density per unit space of the peeled ice. It has become. Therefore, when the ice collecting member 35 is attached to the upper part of the auger 34 (FIGS. 1 and 6), ice having a higher density per unit space is generated, and the ice collecting member 35 is attached to the upper part of the auger 34. When not (FIG. 7), it is configured to generate ice having a low density per unit space. Here, “ice having a high density per unit space” means so-called “chip-like ice” obtained by appropriately pressing and solidifying the separated ice when it is collected by the ice collecting member 35. "Ice having low density per unit space" means so-called "flaky ice" obtained by separating excess ice making water contained in the ice after peeling.

As shown in FIGS. 1 and 2, the refrigeration casing 33 is configured in a cylindrical shape having a required thickness having an inner wall surface 40 and an outer wall surface 41 serving as an ice making surface, and a cooling pipe (evaporator) 42 in a refrigeration circuit (not shown). However, the inner wall surface 40 and the outer wall surface 41 are spirally arranged in the circumferential direction. The refrigeration casing 33 is made of a material excellent in thermal conductivity, rust prevention, and the like (for example, stainless steel). Both surfaces of the external wall surface 41 are configured to be suitably cooled. And the 1st bolt fastening hole 47 to which the 1st assembly | attachment volt | bolt B1 which fixes the said freezing casing 33 to the said base member 39 is fastened to the upper end surface of the freezing casing 33 is carried out for every required space | interval (etc. A plurality (6 in the premise example ) are formed at intervals. A ring-shaped support member 44 that slides and supports the lower end portion of the auger 34 from the outside is disposed on the lower end surface of the refrigeration casing 33.

As shown in FIGS. 1 to 3, the auger 34 is formed in a cylindrical shape having a required thickness from a material excellent in wear resistance and rust prevention (for example, stainless steel) and is accommodated in the refrigeration casing 33. It is configured to obtain the shape and size. In the auger 34 of the premise example , a total of four rotary blades 50 project in a spiral manner on the outer peripheral surface of the cylindrical body that opens upward and downward, and when accommodated inside the refrigeration casing 33, The blade edge surface of the rotary blade 50 is configured to be close to the inner wall surface 40 in a non-contact state. A support boss 52 is formed at the center (rotation center) of the upper portion of the auger 34, and the lower end of the rotary shaft 56 connected to the output portion of the driving means 36 is fitted so as to be integrally rotatable. In addition, a plurality of (six in the premise example ) spoke portions 51 are provided in the circumferential direction between the support boss portion 52 and the auger inner peripheral surface. An ice passage port 53 that allows the generated ice to pass therethrough is defined between the spoke portions 51 inside the auger 34 where the spoke portions 51 are disposed. A support piece 54 is formed on the outside of the lower part of the auger 34 so as to be in sliding contact with the support member 44 attached to the lower end of the refrigeration casing 33 from the inside. Is formed. Each of the spoke portions 51 is formed in a shape having a step portion at a substantially intermediate portion in the length direction thereof, and the side adjacent to the support boss portion 52 is lowered by one step, and mounting of an ice collecting member 35 described later is allowed. Configured to do.

As shown in FIGS. 1, 2 and 4, the base member 39 is a flange-shaped disk member having an outer dimension substantially the same as the outer dimension of the refrigeration casing 33. Can be assembled. A through hole 60 is formed in the central portion of the base member 39 to allow the rotation shaft 56 to be inserted. A cylindrical rib 61 is provided on the upper surface of the base member 39 so as to be fitted and connected to the engaging protrusion 100 of the driving means 36. Further, at a portion adjacent to the outer peripheral edge of the base member 39, a first bolt through hole 62 through which the first assembly bolt B1 for assembling the base member 39 and the refrigeration casing 33 is inserted is a required interval on a concentric circle. A plurality (6 in the premise example ) are formed for each. That is, each first bolt through hole 62 is formed so as to be aligned with each first bolt fastening hole 47 formed in the upper end surface of the refrigeration casing 33. A second assembled bolt B2 for fastening the base member 39 to the upper wall portion 90 of the frame 38 is fastened to a portion radially inward from the portion where the first bolt through holes 62 are formed. A plurality of (two in the example ) six 2-bolt fastening holes 63 are formed at required intervals on a concentric circle.

Further, as shown in FIG. 4, the lower surface of the base member 39 is fixed to the portion adjacent to the inner wall surface of the refrigeration casing 33 with an inclined guide surface 64 </ b> A that bulges downward and toward the center of rotation at an acute angle. A plurality of blades 64 are formed on the concentric circles at required intervals (six in the premise example ). Each fixed blade 64 prevents the ice that has moved substantially vertically upward along the inner wall surface 40 of the refrigeration casing 33 by each rotary blade 50 of the auger 34 from rotating with the rotation of the auger 34, and the inclined guide surface. 64A functions to change the direction of rotation of the auger 34 in the direction of the rotation center (horizontal direction). The lower surface of the base member 39 has an inner portion that is recessed as compared with the outer peripheral portion, and a guide surface 67 that is inclined upward from the radially outer side to the inner side is provided between the inner portion and the outer peripheral portion. The guide surface 67 functions to change the ice conveyed upward by the rotary blade 50 of the auger 34 to the rotation center side of the auger 34. The fixed blade 64 of the premise example is provided so as to protrude from the guide surface 67. Furthermore, a plurality of protrusions (rotation restricting pieces) extending in a straight line or a curved line from the center of the base member 39 toward the outer peripheral end at a portion facing the upper opening of the auger 34 on the lower surface of the base member 39. 65 protrudes substantially radially. These protrusions 65 come into contact with the ice conveyed between the base member 39 and an ice collecting member 35 described later from above, and the ice collected in the ice collecting member 35 rotates with the rotation of the auger 34. It works to prevent you from doing. Further, a discharge guide surface 66 that bulges downward and radially outward is formed at the central portion of the lower surface of the base member 39. The discharge guide surface 66 is positioned so as to face an ice discharge port 71 (to be described later) of the ice collecting member 35, and the ice moved in the rotation center direction (horizontal direction) along the ice collecting member 35 is rotated by the auger 34. In addition, it functions to prevent the ice from rotating together with the ice and to change the direction downward and to send the ice changed downward to the ice discharge port 71.

As shown in FIGS. 2 and 5, the auger type ice making machine 30 of the premise example is configured such that an ice collecting member 35 can be detachably attached to the upper opening of the auger 34. This ice collecting member 35 and the base member 39 form an ice collecting part S. That is, when the ice collecting member 35 is attached to the upper opening of the auger 34 (FIGS. 1 and 6), the peeled ice is collected in the ice collecting portion S, thereby increasing the density per unit space. When the generated ice is generated and the ice collecting member 35 is not attached to the upper opening of the auger 34 (FIG. 7), the ice collecting portion S is not formed. Configured to be generated. The ice collecting member 35 is a flange-shaped disk member formed to have substantially the same outer dimensions as the auger 34, and covers the upper opening of the auger 34 when assembled to the auger 34. It is like that. A through-hole 70 is formed in the central portion of the ice collecting member 35 so as to be slidably contacted with the rotary shaft 56 in a loosely fitted state. Two ice discharge ports 71 and 71 are formed in a substantially fan shape with 70 interposed therebetween.

  Further, on the upper surface of the ice collecting member 35, ice pressing guide pieces (ice guiding portions) 72, 72 extending linearly or curvedly from the outer peripheral end of the ice collecting member 35 toward the ice discharge ports 71, 71. Is protruding. As indicated by arrows in FIG. 5, these ice pressing guide pieces 72 and 72 are provided with ice discharge ports 71 and 71 provided adjacent to the rotation center for the ice conveyed from the outer peripheral surface of the auger 34 toward the rotation center. It works to push towards. Therefore, as shown in FIG. 5, the ice collecting position P2 which is a part for collecting the ice after peeling is an ice peeling position where the rotary blade 50 of the auger 34 peels the ice generated on the inner wall surface 40 of the refrigeration casing 33. It is set to be closer to the rotation center of the auger 34 than P1 (the position of the cutting edge surface of the rotary blade 50). Thereby, the ice collecting efficiency is improved because the ice collected by the ice collecting member 35 gradually decreases in speed as it moves to the rotation center of the auger 34. Further, since the collected ice moves toward the rotation center of the auger 34, the torque load on the driving means 36 is reduced. In addition, it is possible to adjust the ice collection degree by the ice collecting member 35 by changing the opening size of each ice discharge port 71, 71. For example, the density per unit space is increased as the opening size is reduced. Ice can be produced.

As shown in FIGS. 1 and 2, the reservoir tank 37 is formed in a size that can accommodate the ice making mechanism portion 32, and has an outer cylinder portion 80 having a diameter larger than the outer size of the refrigeration casing 33 and the inner diameter size of the auger 34. The inner cylinder part 81 having a smaller diameter and the bottom wall part 82 provided between the outer cylinder part 80 and the lower end of the inner cylinder part 81 are formed. The inner side of the upper end edge of the outer cylinder part 80 is fully open, the inner side of the upper end edge of the inner cylinder part 81 is also fully open, and the height of the inner cylinder part 81 is the height of the outer cylinder part 80. Is set to be the same as or low as appropriate. Therefore, the reservoir tank 37 can store the ice making water up to the opening position of the inner cylinder portion 81 at the maximum. A rib 83 extending outward in the radial direction and extending over the entire circumference in the circumferential direction is formed at the upper end edge of the outer cylindrical portion 80, and the reservoir tank 37 is attached to the frame 38 on the rib 83. A plurality of third bolt fastening holes 84 (seven in the premise example ) are formed in the circumferential direction for fastening a third assembly bolt B3 for assembling to the upper wall portion 90 in the circumferential direction. Further, as shown in FIG. 1, the inner cylinder portion 81 protrudes to the inside of the auger 34, and the upper end opening portion of the inner cylinder portion 81 extends from below to the ice passage port 53 of the auger 34 in the ice making mechanism portion 32. In alignment, it functions as an ice discharge chute for the ice dropped and discharged from the ice passage port 53. It should be noted that the float switch 45 and the water valve 46 shown in FIG. 2 face the bulging portion 85 formed in a part of the outer cylinder portion 80.

The frame 38 has an upper wall 90 having a left and right dimension larger than the maximum diameter of the reservoir tank 37, and extends vertically downward from the left end and the right end of the upper wall 90, respectively. The left vertical wall portion 91 and the right vertical wall portion 92 having a height dimension larger than the height dimension, and the left support portion 93 and the right vertical wall portion 92 that extend horizontally from the lower end of the left vertical wall portion 91 to the left. And a right support portion 94 extending horizontally in the right direction from the lower end. A circular opening 95 that allows insertion of the cylindrical rib 61 of the base member 39 is formed in a substantially central portion of the upper wall 90, and a second set for fixing the base member 39 to the upper wall 90 is provided. A plurality (six in the precondition example ) of second bolt through holes 96 that allow the insertion of the attached bolt B2 are formed on the same circumference along the edge of the circular opening 95. Further, outside the second bolt through hole 96 provided in the upper wall portion 90, there is a third bolt through hole 99 that allows insertion of the third assembled bolt B3 that fixes the reservoir tank 37 to the upper wall portion 90. A plurality (seven in the premise example ) of the same circumference are formed for each required interval. Reinforcing ribs 97, 97 extending in the left-right direction along the edge of the upper wall 90 are formed integrally with the upper wall 90 at the front edge and the rear edge of the upper wall 90. Has been. The form of the frame 38 is not limited to that illustrated in FIG. 2, and any other form can be used as long as each component such as the ice making mechanism 32 and the reservoir tank 37 can be appropriately fixed and held. It may be.

The drive means 36 is, for example, an electric motor that also has a reduction gear mechanism. As shown in FIG. 1, the drive means 36 has an output shaft portion (not shown) that protrudes from the lower surface of the main body and an output shaft portion (not shown) on the rotating shaft. The upper end portions of 56 are connected. The drive means 36 fits the engaging protrusion 100 to the cylindrical rib 61 of the base member 39 fixed to the upper wall portion 90 of the frame 38 from below, and is disposed on the upper surface of the base member 39. By being fixed to the support bracket 98, the upper portion of the frame 38 is stably fixed. Therefore, in the premise example auger type ice making machine 30, the driving means 36 for rotating the auger 34 is disposed above the ice making mechanism 32, and the driving means 36 is connected to the upper part of the auger 34 so that the auger 34 is suspended. Therefore, it is possible to discharge and drop the ice generated from the upper part of the auger 34 to the inside of the auger 34. Here, reference numeral 101 in FIG. 1 denotes a bearing, and reference numeral 102 denotes a sleeve composed of two semicircular arc-shaped members. By fitting the sleeve 102 into a fitting groove provided on the rotating shaft 56, The rotary shaft 56 to which the auger 34 is fixed functions to prevent the downward rotation of the rotary shaft 56. The form of the drive means 36 is not limited to this, and the auger 34 is rotated at a constant speed at a predetermined rotational speed, whereby the ice can be appropriately separated by the rotary blade 50 and the ice can be collected by the ice collecting member 35. Various configurations can be implemented as long as the above is achieved.

The auger type ice making machine 30 of the premise example composed of the respective constituent members is configured such that the first assembled bolt B1 is connected to the first bolt fastening hole 47 of the refrigeration casing 33 via the first bolt through holes 62 of the base member 39. As a result, the refrigeration casing 33 is assembled to the base member 39. Then, the second assembled bolt B2 is fastened to each second bolt fastening hole 63 of the refrigeration casing 33 via each second bolt through hole 96 of the frame 38, so that the refrigeration casing 33 is against the lower surface of the frame 38. Is assembled. Further, after fixing the rotating shaft 56 to the support boss portion 52 formed on the auger 34, the rotating shaft 56 is inserted from below into the through-hole 60 of the base member 39, so that the auger is placed inside the refrigeration casing 33. 34 is accommodated. Then, with the output shaft portion of the driving means 36 connected to the rotating shaft 56 of the auger 34, the driving means 36 is assembled to the upper surface of the frame 38 by appropriate fixing means not shown. Finally, the third assembly bolt B3 is fastened to the third bolt fastening hole 84 of the reservoir tank 37 via the third bolt through holes 99 of the frame 38, so that the reservoir tank 37 is against the lower surface of the frame 38. Assemble. In addition, in the case of an ice making machine of a specification that generates ice with increased density per unit space, the ice collecting member 35 is placed in the upper opening of the auger 34 before the auger 34 is assembled to the base member 39. Wear it. However, the assembly of the constituent members is not limited to the order described here.

Auger type ice making machine 30 of the thus assembled precondition, as shown in FIG. 1, the outer cylinder portion 80 of the reservoir tank 37 refrigeration casing 33 and the auger 34 of the ice making mechanism portion 32, for storing the ice-making water It faces between the inner cylinder part 81 and is accommodated in the reservoir tank 37. The inner cylinder portion 81 of the reservoir tank 37 faces the inside of the auger 34. As shown in FIGS. 1 and 5, the diameter of the ice collecting member 35 is the same as that of the cylindrical body of the auger 34, and the ice collecting position P <b> 2 by the ice pressing guide pieces 72, 72 of the ice collecting member 35 is used. Is closer to the center of rotation of the auger 34 than the ice peeling position P1 by the rotary blade 50 of the auger 34. Further, the upper surface of the ice collecting member 35 assembled to the auger 34 and the lower surface of the base member 39 face each other at a required interval.

The auger type ice making machine 30 of the premise example , when supplying a specified amount of ice making water into the reservoir tank 37 via the water valve 46, adds the frozen casing to the ice making water stored in the reservoir tank 37. 33 and the auger 34 are immersed. That is, the ice making mechanism portion 32 is configured such that the outer peripheral surface (the outer wall surface 41 of the refrigeration casing 33) is wrapped by the ice making water before being supplied into the ice making mechanism portion 32. In other words, the ice making mechanism 32 of the auger type ice making machine 30 of the premise example is housed in the reservoir tank 37 and immersed in the ice making water so as not to contact the outside air. Therefore, the ice making water is the conventional ice making water shown in FIG. It functions as the heat insulating material 23 in the auger type ice making machine 10 and has a structure that can eliminate the need for a heat insulating material for keeping the ice making mechanism 32 in a low temperature state. Further, since the refrigeration casing 33 cooled by the refrigeration circuit is immersed in the ice making water in the reservoir tank 37, the ice making water before being supplied into the ice making mechanism 32 is brought into contact with the refrigeration casing 33 and appropriately cooled. To get.

Further, as shown in FIG. 1, the auger type ice making machine 30 of the premise example has a fixed blade 64 and an ice collecting member 35 for turning vertically moving ice in the center direction close to the driving means 36 for rotating the auger 34. It is arranged at the position. That is, when collecting ice, the auger 34 and the refrigeration casing 33 are required to have a robust structure because the cylindrical body of the auger 34 and the refrigeration casing 33 hardly generate a thrust load for collecting ice. The ice making mechanism 32 is reduced in weight and size. Further, since the ice collecting position P2 by the ice collecting member 35 is close to the rotation center of the auger 34, the torque load on the driving means 36 when collecting ice by the ice collecting member 35 can be reduced.

Further, as shown in FIG. 1, the auger type ice making machine 30 of the premise example is arranged in a state in which the ice making mechanism portion 32 is accommodated in the reservoir tank 37, and the ice making mechanism portion 32 is disposed at the bottom of the reservoir tank 37. The structure does not penetrate downward from the wall 82. For this reason, there is no leakage of ice making water from the ice making mechanism section 32, and it is not necessary to provide a mechanical seal or the like at the boundary between the ice making mechanism section 32 and the reservoir tank 37. However, it is difficult for water leakage problems to occur. On the other hand, since the reservoir tank 37 is configured as a single member and is not mounted with other components, the reservoir tank 37 can be attached to and detached from the frame 38 only by tightening or loosening the third assembly bolt B3. .

In the following, it will be described the action of the auger type ice making machine 30 assumptions embodiment configured as described above. Here, the operation of the auger type ice making machine 30 that generates the ice with the increased density per unit space equipped with the ice collecting member 35 will be described.

  When a specified amount of ice making water is supplied into the reservoir tank 37 via the water valve 46, the refrigeration casing 33 and the auger 34 in the ice making mechanism portion 32 are stored in the reservoir tank 37 as shown in FIG. The ice making water also flows into the ice making mechanism 32 (between the freezing casing 33 and the auger 34) through the water passage 55. In this state, when the refrigeration circuit (not shown) is operated and the refrigerant is supplied to the cooling pipe 42, the entire refrigeration casing 33 is cooled to cool both the inner wall surface 40 and the outer wall surface 41, which are ice making surfaces. Therefore, while ice is generated on the inner wall surface 40 of the refrigeration casing 33, the ice-making water that is in contact with the outer wall surface 41 (the ice-making water before flowing into the ice-making mechanism 32) is appropriately cooled. The ice-making water before being supplied to the ice-making mechanism 32 is appropriately cooled while being in contact with the refrigeration casing 33. However, as ice making progresses, the ice-making water at room temperature is passed through the water valve 46 in the reservoir tank 37. Since the water is additionally supplied so as to keep the water level constant, little ice is generated on the outer wall surface 41 of the refrigeration casing 33, and in some cases, almost no ice is generated. Here, when the temperature of the supplied ice making water is low, the generation of ice on the outer wall surface 41 of the refrigeration casing 33 is promoted, and there is a possibility that the gradually grown ice may come into contact with the reservoir tank 37. The outer wall surface 41 of 33 may be covered with a small amount of heat insulating material to suppress the formation of ice on the outer wall surface 41. As the heat insulating material in this case, a material having no problem even if it is immersed in ice making water is employed.

  When ice begins to be generated on the inner wall surface 40 of the refrigeration casing 33, the ice generated on the inner wall surface 40 is sequentially peeled off at the ice peeling position P1 by the rotary blades 50 of the auger 34 rotating at a constant speed by the driving means 36. At the same time, it is conveyed vertically upward along the inner wall surface 40. Then, the ice that has reached the upper end of the auger 34 is moved in the horizontal direction by the fixed blades 64 and the guide surfaces 67 provided on the base member 39 and moves toward the center of rotation of the auger 34. It becomes like this. In addition, when the ice conveyed upward by each rotary blade 50 contacts each fixed blade 64, a part of the unfrozen ice-making water contained is separated from the ice.

  Then, the ice that has reached the upper end portion of the auger 34 and whose direction of conveyance has been changed in the horizontal direction by the fixed blades 64 and the guide surfaces 67 is caused by the ice collecting member 35 and the base member 39 as shown in FIG. The auger 34 is moved around the center of the auger 34 by moving inside the formed ice collecting section S and by the ice pressing guide pieces 72 and 72 provided on the upper surface of the ice collecting member 35 and the respective protrusions 65 provided on the lower surface of the base member 39. The upper surface of the ice collecting member 35 is moved toward. Then, the ice moving on the upper surface of the ice collecting member 35 is gradually pressed at the ice collecting position P2 in the process of moving toward the rotation center of the auger 34, and becomes ice with an increased density per unit space. That is, the ice that has moved to the upper surface of the ice collecting member 35 in the ice collecting section S is restricted from rotating in the circumferential direction along with the rotation of the auger 34 by each protrusion 65 and the discharge guide surface 66. Originally, the ice is pressed from the side by the ice pressing guide pieces 72, 72, collected gradually, and becomes ice having an increased density per unit space in the process of moving toward the rotation center of the auger 34. Then, the ice that has reached the ice discharge ports 71 and 71 and whose density per unit space has been increased is changed by the discharge guide surface 66 in the downward direction and is pushed toward the ice discharge ports 71 and 71. The ice falls from the ice discharge ports 71, 71 toward the ice passage ports 53 of the auger 34. In addition, the ice pushed out to each ice discharge port 71 contacts the rotating shaft 56 of the auger 34, the support boss part 52, the spoke part 51, etc., and falls and falls. Ice that has fallen into each ice passage port 53 from a portion adjacent to the rotation center of the auger 34 passes through the inner cylinder portion 81 of the reservoir tank 37 and falls into the ice storage chamber 105.

  On the other hand, the auger type ice making machine 30 that generates ice without installing the ice collecting member 35 in the upper opening of the auger 34 operates as follows. The ice moved to the upper opening of the auger 34 is turned by the inclined guide surface 64A and the guide surface 67 of the fixed blade 64 as shown in FIG. Since 35 is not disposed (because the ice collecting portion S is not formed), it freely falls from the portion adjacent to the inner peripheral surface of the auger 34 toward each ice passage port 53. Therefore, the ice that has fallen into each ice passage port 53 from a portion adjacent to the inner peripheral surface of the auger 34 (a portion separated from the rotation center) passes through the inner cylinder portion 81 of the reservoir tank 37 in a state where the density hardly increases. Pass through and drop into the ice storage chamber 105.

Therefore, according to the auger type ice making machine 30 of the premise example , the following operational effects are obtained. First, since the ice making mechanism 32 including the refrigeration casing 33 and the auger 34 is disposed in the reservoir tank 37, the refrigeration casing 33 and the auger 34 are immersed in the ice making water stored in the reservoir tank 37. Therefore, since the ice making water stored in the reservoir tank 37 contacts the external wall surface 41 of the refrigeration casing 33 that is cooled, it can be appropriately cooled before being supplied to the ice making mechanism section 32. The reservoir tank 37 and the ice making mechanism 32 are communicated with each other through a water passage 55 formed in the auger 34. As a result, ice making water appropriately cooled during storage is supplied to the ice making mechanism section 32, so that ice generation on the inner wall surface 40 (ice making surface) of the refrigeration casing 33 is promoted, and ice making efficiency is improved.

  The ice making mechanism 32 is covered with the reservoir tank 37, and the ice making mechanism 32 is entirely encased by the ice making water stored in the reservoir tank 37. Therefore, the reservoir tank 37 and the ice making water serve as a heat insulating material. Thus, the heat insulating material for keeping the ice making mechanism 32 in a low temperature state becomes unnecessary. Moreover, even if it installs a heat insulating material in order to suppress the production | generation of ice on the external wall surface 41 of the freezing casing 33, the heat insulating material used for this may be a small amount. Accordingly, since the heat insulating material is unnecessary or a small amount, there is an advantage that the material cost and the molding cost of the heat insulating material can be reduced and the manufacturing cost of the ice making machine can be suppressed. Moreover, since the heat insulating material 23 is unnecessary or small, the ice making mechanism 32 can be downsized and the reservoir tank 37 is disposed around the ice making mechanism 32, so that the ice making machine itself can be downsized. . Further, since the ice making water in the reservoir tank 37 flows directly into the ice making mechanism portion 32 through the water flow port 55 provided in the auger 34, air or the like does not stay in the water flow port 55, and the reservoir A stable supply of ice making water from the tank 37 to the ice making mechanism 32 is achieved.

Further, in the auger type ice making machine 30 of the premise example , the driving means 36 for rotating the auger 34 is disposed above the ice making mechanism 32, and the driving means 36 is connected to the upper part of the auger 34 to suspend the auger 34. Since it is configured to be hung, it is possible to cause the ice separated from the refrigeration casing 33 by the rotary blade 50 of the auger 34 to fall into the auger 34 from the upper opening (ice passing port 53) of the auger 34. Therefore, unlike the conventional auger type ice making machine 10 shown in FIG. 16, it is not necessary to push out the generated ice to the ice discharge chute 25 through the ice discharge port, and the ice transport efficiency can be improved. In addition, since the ice discharge chute disposed above the ice making mechanism 32 is not necessary, it is possible to expect a reduction in the manufacturing cost of the ice making machine and also to reduce the size of the ice making machine itself. Further, since the driving means 36 is disposed at a position close to the ice collecting member 35 and the stress acting on the auger 34 and the refrigeration casing 33 during the collection of the generated ice is greatly reduced, the ice making mechanism 32 is provided. Can be expected to be smaller and lighter. Furthermore, since the ice making mechanism portion 32 does not have a structure penetrating the bottom wall portion 82 of the reservoir tank 37, there is no problem of water leakage in the ice making mechanism portion 32, and a mechanical seal or the like for preventing water leakage is provided. There is no need to apply. Furthermore, since the reservoir tank 37 is configured as a single unit and no attached components are attached to the reservoir tank 37, the operation of detaching the reservoir tank 37 from the frame 38 is simple, and the ice making machine can be disassembled. It is easy to perform cleaning and maintenance work.

FIG. 12 is a side sectional view showing an embodiment of a type in which the ice making mechanism is immersed in the ice making water stored inside the reservoir tank (ice making water storing portion) described in the premise example . Note omitted, the ice making mechanism portion according to the embodiment, a description using the same reference numerals are used for the same configuration as the auger type ice making machine precondition. In the ice making mechanism portion 150 of the embodiment , the auger 34 is rotatably held by a bearing portion 152 assembled inside the reservoir tank 37. The bearing portion 152 includes a cylindrical shaft portion 153 and a mounting portion 154 formed at the lower end of the shaft portion 153 so as to extend outward in the radial direction. The ice making mechanism 150 inserts the shaft portion 153 inside the auger 34 formed in a cylindrical shape corresponding to the ice making surface 40 forming the circumferential surface of the refrigeration casing 33, and the auger 34 is placed on the placement portion 154. It is supposed to be placed on. That is, the auger 34 supports the inner peripheral surface (second peripheral surface) opposite to the outer peripheral surface (first peripheral surface) on which the rotary blade 50 is provided by the shaft portion 153, and the shaft portion 153 supports the auger 34. The movement of 34 in the radial direction is restricted. Further, the lower end surface of the auger 34 is supported by the placement portion 154, and the downward movement is restricted by the placement portion 154.

  The reservoir tank 37 is provided such that an inner cylinder portion (wall portion) 81 facing the inner peripheral surface of the auger 34 with the shaft portion 153 interposed therebetween extends from the shaft portion 153 with a gap therebetween. The upper end is configured to communicate with the gap from between the auger 34 and the shaft portion 153. Further, the mounting portion 154 of the bearing portion 152 is provided with a through hole 152 a that communicates between the auger 34 and the refrigeration casing 33, and passes through the space between the auger 34 and the ice making surface 40 of the refrigeration casing 33. Ice making water is supplied through the holes 152a. That is, in the ice making mechanism portion 150 immersed in the ice making water stored in the reservoir tank 37, the ice making water exists inside and outside the shaft portion 153, and the ice making water exists on the sliding surface between the auger 34 and the bearing portion 152. By doing so, the ice making water can function as a lubricant and suppress wear of the sliding surface. The inner cylinder part 81 is separated from the auger 34 and the shaft part 153, and ice making water exists in the gap between the inner cylinder part 81 and the shaft part 153, so that the inner cylinder part 81 is cooled by the refrigeration casing 33. Insulation is achieved between the auger 34 and the ice passage 53 as well. In addition, since the upper end of the shaft portion 153 communicates with the gap from between the auger 34 and the shaft portion 153, it adheres to the ice making water discharged from the inside of the bearing portion 152 and the ice conveyed to the auger 34. It is possible to return to the reservoir tank 37 again as ice making water without leaking out the water that is being discharged. At this time, foreign matter between the sliding surfaces can be smoothly discharged. Further, since the ice making water is supplied from the auger 34 side, not the cooled freezing casing 33 side, between the auger 34 and the ice making surface 40 of the refrigeration casing 33, supply failure due to freezing of the ice making water. Can be avoided.

As described above, the ice making mechanism 150 has a sliding bearing structure in which the auger 34 slides with respect to the bearing 152. That is, during the ice making operation, the auger 34 receives a radial load applied radially inward from the rotary blade 50 that peels off the ice formed on the ice making surface of the refrigeration casing 33 with respect to the auger 34. It is supported by a shaft portion 153 that is in sliding contact with the surface. Here, the shaft portion 153 is configured to extend over the inner peripheral surface of the auger 34, and the radial load applied from the rotary blade 50 on the outer peripheral surface side of the auger 34 is the input direction of the radial load. Is properly received by the shaft portion 153 extending in a crossing direction. That is, during the ice making operation, the ice on the ice making surface 40 can be suitably peeled off by the rotary blade 50 without the auger 34 being deformed. Further, the rigidity required for the auger 34 itself can be reduced. Furthermore, since the auger 34 and the bearing portion 152 are in sliding contact with each other and the mutual contact area can be increased, the surface pressure can be reduced and the mutual wear can be suppressed. Therefore, even if the auger 34 is made of a synthetic resin, it can be fully used. The auger 34 has a rotating blade 50 through a space defined between the outer surface of the auger 34 and the ice making surface 40 of the refrigeration casing 33 during the ice making operation of the ice making mechanism 150 and the auger 34 itself. Thus, a thrust load that is loaded in the axial direction when the ice is pushed upward is appropriately supported by the mounting portion 154. Moreover, by providing the bearing portion 152 as in the ice making mechanism portion 150 of the embodiment , another bearing such as the bearing 101 that holds the support member 44 and the rotating shaft 56 can be simplified or omitted. .

In the ice making mechanism portion 150 shown in FIG. 12, the bearing portion 152 is provided separately from the reservoir tank 37. However, like the ice making mechanism portion 155 shown in FIG. 13, the bearing portion is the wall portion of the reservoir tank (ice making water storage portion) 156. It may be configured. In the ice making mechanism portion 155 according to another example of the embodiment, the cylindrical inner cylinder portion 157 standing on the inner side of the reservoir tank 156 serves as a shaft portion that receives the radial load of the auger 34, and the lower end of the inner cylinder portion 157 has a radial direction. A bottom wall portion 158 that extends outward and constitutes the bottom surface of the reservoir tank 156 functions as a mounting portion that receives the serial load of the auger 34. That is, the ice making mechanism portion 155 inserts the inner tube portion 157 inside the auger 34 formed in a cylindrical shape corresponding to the ice making surface 40 forming the circumferential surface of the refrigeration casing 33, and the auger 34 is attached to the bottom wall. The unit 158 is placed. That is, the auger 34 is supported by the inner cylinder portion 157 on the inner circumferential surface (second circumferential surface) opposite to the outer circumferential surface (first circumferential surface) on which the rotary blade 50 is provided. The auger 34 is restricted from moving in the radial direction. In addition, the lower end surface of the auger 34 is supported by the bottom wall portion 158, and the downward movement is restricted by the bottom wall portion 158. As described above, the reservoir tank 156 shown in FIG. 13 exhibits the same function and effect of the bearing portion 152 shown in FIG. 12, and can further reduce the cost by using a common member.

(Reference Example 1)
FIG. 8 is a schematic configuration diagram showing a part of the auger type ice making machine 110 according to the first reference example . Compared with the conventional auger type ice making machine 10 illustrated in FIG. 16, the auger type ice making machine 110 of Reference Example 1 abolishes the heat insulating material 23 provided outside the freezing casing 13 in the ice making mechanism unit 12. A reservoir tank 37 is provided outside the refrigeration casing 33, and a water passage 111 is provided below the refrigeration casing 33 so that a water supply pipe is not required. That is, in the auger type ice making machine 110 of Reference Example 1 , the outer wall surface 41 of the refrigeration casing 33 constitutes the wall surface of the reservoir tank 37, and the ice making mechanism portion 32 is added to the ice making water stored in the reservoir tank 37. There is immersed, the outer circumferential surface of the ice making mechanism portion 32 is made by the Hare structure encased by ice making water.

Therefore, in the auger type ice making machine 110 of Reference Example 1 , the external wall surface 41 of the refrigeration casing 33 in the ice making mechanism portion 32 constitutes the wall surface of the reservoir tank 37, so the ice making mechanism is added to the ice making water stored in the reservoir tank 37. The part 32 is immersed. Therefore, since the ice making water stored in the reservoir tank 37 contacts the external wall surface 41 of the refrigeration casing 33 that is cooled, it can be appropriately cooled before being supplied to the ice making mechanism section 32. The reservoir tank 37 and the ice making mechanism 32 are communicated with each other through a water passage 111 provided in the refrigeration casing 33. As a result, ice making water appropriately cooled during storage is supplied to the ice making mechanism section 32, so that ice generation on the inner wall surface 40 (ice making surface) of the refrigeration casing 33 is promoted, and ice making efficiency is improved. In addition, the ice making mechanism 32 is covered with the reservoir tank 37, and the ice making mechanism 32 is entirely encased by the ice making water stored in the reservoir tank 37. Therefore, the reservoir tank 37 and the ice making water serve as a heat insulating material. It becomes functional, and a heat insulating material for keeping the ice making mechanism 32 in a low temperature state can be made unnecessary. Moreover, even if it installs a heat insulating material in order to suppress the production | generation of ice on the external wall surface 41 of the freezing casing 33, the heat insulating material used for this may be a small amount. Therefore, since the heat insulating material is unnecessary or becomes a small amount, the material cost and the molding cost of the heat insulating material can be reduced, and the manufacturing cost of the ice making machine can be suppressed. Furthermore, since the ice making water in the reservoir tank 37 has a structure that flows directly into the ice making mechanism 32 through the water passage 111 provided in the refrigeration casing 33, air or the like does not stay in the water passage 111. A stable supply of ice making water from the reservoir tank 37 to the ice making mechanism 32 is achieved.

(Reference example 2)
FIG. 9 is a schematic configuration diagram showing a part of the auger type ice making machine 120 according to Reference Example 2 broken away. Auger type ice making machine 120 of Reference Example 2, the configuration of the auger 34 and the refrigeration casing 33 in the ice-making mechanism 32 is different from the Examples and Reference Example 1, and provided the auger 34 to the outside of the refrigeration casing 33, The rotary blade 50 of the auger 34 is projected toward the inner wall side, and the outer wall surface 41 of the refrigeration casing 33 functions as an ice making surface to generate ice. Accordingly, the ice making mechanism 32 includes a case body 121 that houses the auger 34 and the refrigeration casing 33 inside. The case body 121 in the ice making mechanism 32 constitutes the wall surface of the reservoir tank 37. In the auger type ice making machine 120 of Reference Example 2 as well, the ice making mechanism 32 is immersed in the ice making water stored in the reservoir tank 37, and the outer peripheral surface of the ice making mechanism 32 (the outer peripheral surface of the case body 121) is It is configured to be wrapped in ice making water before being supplied to the ice making mechanism 32. A water passage 122 is provided at the lower part of the auger 34 so as to face the reservoir tank 37, so that a water supply pipe is not required.

Therefore, in the auger type ice making machine 120 of Reference Example 2 , the ice making mechanism portion 32 is covered with the reservoir tank 37, and the ice making mechanism portion 32 is entirely wrapped with the ice making water stored in the reservoir tank 37. The reservoir tank 37 and the ice making water function as a heat insulating material, and a heat insulating material for keeping the ice making mechanism 32 in a low temperature state may be unnecessary. Moreover, the auger 34 wraps the refrigeration casing 33 as a whole, and the auger 34 itself can be expected to function as a heat insulating material. Thereby, since the material cost and shaping | molding cost of a heat insulating material are reduced, the manufacturing cost of an ice making machine can be held down. Further, since the ice making water in the reservoir tank 37 flows directly into the ice making mechanism portion 32 through the water inlet 122 provided in the auger 34, air or the like does not remain in the water inlet 122, and the reservoir A stable supply of ice making water from the tank 37 to the ice making mechanism 32 is achieved.

(Reference Example 3)
FIG. 10 is a schematic configuration diagram showing a part of an auger type ice making machine 130 according to Reference Example 3 broken away. In the auger type ice making machine 130 of the reference example 3, like the auger type ice making machine 30 of the premise example described above, the driving means 36 disposed above the ice making mechanism 32 is connected to the upper part of the auger 34 to connect the auger 34. The shape of the auger 34 is changed with the refrigeration casing 33 and the refrigeration casing 33 being the same. The auger 34 has a bottomed cylindrical shape that opens upward, and a cylindrical member 132 provided with an opening 132B having the same diameter as the inner diameter of the auger 34 at the bottom 132A, and an inner edge of the opening 132B. The auger 34 is provided with an ice making water storage portion 134 that is fixed in alignment with the lower end portion of the auger 34 and can store ice making water. That is, the refrigeration casing 33 is located outside the auger 34 with the ice making water reservoir 134 facing the inside, and the outer wall portion 132C of the cylindrical member 132 is located outside the refrigeration casing 33. When a predetermined amount of ice making water is stored in the water storage part 134, the refrigeration casing 33 is disposed in the ice making water. Accordingly, when the auger 34 is rotated by the driving means 36 at the time of ice making, the cylindrical member 132 rotates along with the auger 34 on the outside of the refrigeration casing 33, and the ice-making water stored in the ice-making water storage unit 134 is supplied. It can be appropriately stirred. Note that the auger 34 and the cylindrical member 132 may be integrally formed when there is no restriction on molding.

Therefore, in the auger type ice making machine 130 of Reference Example 3 , the refrigeration casing 33 of the ice making mechanism portion 32 is disposed in the ice making water storage portion 134 provided in the auger 34, and the ice making water stored in the ice making water storage portion 134 is provided. Thus, the refrigeration casing 33 is entirely wrapped. Accordingly, the ice making water stored in the ice making water storage unit 134 comes into contact with the cooled refrigeration casing 33 and is supplied for ice making in an appropriately cooled state. The generation of ice on the surface is promoted to improve ice making efficiency. Moreover, since the ice making water storage part 134 is provided in the auger 34, the auger type ice making machine 130 as a whole can be reduced in size. Furthermore, since the ice making water stored in the ice making water storage part 134 of the auger 34 functions as a heat insulating material for the refrigeration casing 33, a heat insulating material for keeping the ice making mechanism part 32 in a low temperature state becomes unnecessary. Moreover, even if it installs a heat insulating material in order to suppress the production | generation of ice on the external wall surface 41 of the freezing casing 33, the heat insulating material used for this may be a small amount. Therefore, since the heat insulating material is unnecessary or becomes a small amount, the material cost and the molding cost of the heat insulating material can be reduced, and the manufacturing cost of the ice making machine can be suppressed.

FIG. 14 is a side sectional view showing another example of the type described in Reference Example 3 in which an ice making water storage unit is provided in an auger and a refrigeration casing is immersed in ice making water stored in the ice making water storage unit. Incidentally, those in the ice making mechanism portion according to another embodiment of Reference Example 3, the description using the same reference numerals are used for the same configuration as the auger type ice making machine in Reference Example 3. In another example of the ice making mechanism 160 of Reference Example 3 , both the inner and outer surfaces 40 and 41 of the cylindrical refrigeration casing 33 are ice making surfaces. Correspondingly, the auger 161 is formed in a double cylindrical shape having two inner and outer peripheral walls 162 and 162 spaced apart in the radial direction, and the inner and outer peripheral walls 162 and 162 are disposed so as to sandwich the refrigeration casing 33 therebetween. In addition, a rotary blade 50 is provided on each peripheral wall 162 so as to face the wall surfaces 40 and 41. Further, in another ice making mechanism portion 160 of Reference Example 3 , an auger 161 is rotatably held by a bearing portion 164 assembled to the ice making machine main body. The bearing portion 164 includes a pair of shaft portions 165 and 165 that are vertically spaced apart from each other in the radial direction, and a mounting portion 166 that is formed so as to extend in the radial direction between the lower ends of the shaft portions 165 and 165. It is a double cylinder shape provided with. The bearing portion 164 is assembled to the frame 38 by connecting the upper end of the outer shaft portion 165 to the upper wall portion 90 of the frame 38. The ice making mechanism portion 160 is in sliding contact with a shaft portion 165 corresponding to the peripheral wall 162 of the auger 34 formed in a cylindrical shape corresponding to the ice making surface 40 forming the circumferential surface of the refrigeration casing 33, and the auger 161 is placed on the mounting portion. 166 is placed. That is, in the auger 161, the second peripheral surface opposite to the first peripheral surface on which the rotary blade 50 is provided is supported by the shaft portion 165, and the shaft portion 165 restricts the radial movement of the auger 161. Is done. Further, the lower end surface of the auger 161 is supported by the placement portion 166, and the downward movement is restricted by the placement portion 166. And even if it is the ice making mechanism part 160 of another example of the reference example 3, the effect similar to the bearing part 152 demonstrated in the Example is obtained.

Thus, according to the ice making mechanism unit 160 of another example of the reference example 3 , by using both the inner and outer surfaces of the refrigeration casing 33 as the ice making surface, the ice making amount is improved without causing the ice making mechanism unit 160 to be enlarged. be able to. Note that the configuration in which both the inner and outer surfaces of the refrigeration casing 33 are used as the ice making surface can be applied to the embodiment and another example of the embodiment .

(Reference Example 4)
FIG. 11 is a schematic configuration diagram showing a part of the auger type ice making machine 140 according to Reference Example 4 broken away. In the auger type ice making machine 140 of the reference example 4, like the auger type ice making machine 30 of the premise example described above, the driving means 36 disposed above the ice making mechanism 32 is connected to the upper part of the auger 34 to connect the auger 34. The shape of the refrigeration casing 33 is changed with the auger 34 and the auger 34 being the same. The refrigeration casing 33 has a cylindrical portion 142A having a smaller diameter than the inner diameter size of the auger 34, and extends radially outward from the lower end portion of the cylindrical portion 142A so as to have the same outer diameter as the outer diameter of the refrigeration casing 33. The cylindrical member 142 composed of the bottom portion 142B is fixed in a state where the outer edge of the bottom portion 142B is aligned with the lower end portion of the refrigeration casing 33, and the ice making water storage portion 144 that can store ice making water is connected to the refrigeration casing. 33 is provided. That is, the auger 34 is located inside the refrigeration casing 33 with the ice making water reservoir 144 facing the inside, and the cylindrical portion 142A of the cylindrical member 142 is located inside the auger 34. When a predetermined amount of ice making water is stored in the water storage part 144, the auger 34 is disposed in the ice making water. Note that the refrigeration casing 33 and the cylindrical member 142 may be integrally formed if there is no restriction on molding.

Therefore, in the auger type ice making machine 140 of Reference Example 4 , the auger 34 of the ice making mechanism 32 is disposed in the ice making water storage 144 provided in the refrigeration casing 33, and the ice making water stored in the ice making water storage 144 is provided. Thus, the auger 34 is entirely wrapped. Accordingly, since the cylindrical member 142 is also cooled by cooling the refrigeration casing 33, the ice making water stored in the ice making water storage unit 144 is supplied for ice making in an appropriately cooled state. Ice generation on the ice making surface of the refrigeration casing 33 is promoted to improve ice making efficiency. Moreover, since the ice making water storage part 144 is provided in the freezing casing 33, the auger type ice making machine 140 as a whole can be downsized. If the frame 38 is formed in a box shape having vertical walls on all sides so as to cover the ice making mechanism 32, the temperature of the air in the frame 38 is cooled by the ice making mechanism 32, so that it is connected to the frame 28. The ice storage chamber 105 can be cooled.

FIG. 15 is a side sectional view showing another example of the type described in Reference Example 4 in which an ice making water storage unit is provided in the refrigeration casing and the auger is immersed in the ice making water stored in the ice making water storage unit. Incidentally, those in the ice making mechanism portion according to another embodiment of Reference Example 4, the description using the same reference numerals are used for the same configuration as the auger type ice making machine of Reference Example 4. In the ice making mechanism 170, the auger 34 is rotatably held by a bearing portion 152 assembled to a storage member 172 described later that defines an ice making water storage portion 171. The bearing portion 152 includes a cylindrical shaft portion 153 and a mounting portion 154 formed at the lower end of the shaft portion 153 so as to extend outward in the radial direction. The ice making mechanism 170 inserts the shaft portion 153 inside the auger 34 formed in a cylindrical shape corresponding to the ice making surface 40 forming the circumferential surface of the refrigeration casing 33, and the auger 34 is placed on the mounting portion 154. It is supposed to be placed. That is, the auger 34 supports the inner peripheral surface (second peripheral surface) opposite to the outer peripheral surface (first peripheral surface) on which the rotary blade 50 is provided by the shaft portion 153, and the shaft portion 153 supports the auger 34. The movement of 34 in the radial direction is restricted. Further, the lower end surface of the auger 34 is supported by the placement portion 154, and the downward movement is restricted by the placement portion 154. And even if it is the ice making mechanism part 170 of another example of the reference example 4, the effect similar to the bearing part 152 demonstrated in the Example is obtained.

The ice-making water storage unit 171 according to another example of the reference example 4 extends in a radial direction from a wall portion 173 that extends to face the refrigeration casing 33 and forms a side surface of the ice-making water storage unit 171, and a lower portion of the wall portion 173. The storage member 172 includes a bottom portion 174 that extends and forms the bottom surface of the ice making water storage portion 171, and the refrigeration casing 33 that is placed on the bottom portion 174 of the storage member 172. The ice making water storage part 171 extends the outer edge of the freezing casing 33 placed on the bottom part 174 to the outer side of the edge opposite to the edge where the bottom part 174 of the storage member 172 is connected to the wall part 173, A drain portion 175 that receives the condensed water flowing down through the refrigeration casing 33 is provided. The drain part 175 is formed in a dish shape with a dam wall 175a standing on the outer peripheral edge, and can discharge condensed water to the outside through a drain pipe (not shown) connected to a discharge part 175b provided on the dam wall 175a. It has become. Thus, since the ice making water storage part 171 also functions as a drain pan, it is possible to prevent the outflow of condensed water flowing down from the ice making mechanism part 170, and it is possible to prevent the breakdown of electrical components caused by the condensed water and the ice in the ice storage room. Melting and the like can be avoided. A water supply part 174a communicating with a water supply means (not shown) is provided at the bottom 174 of the storage member 172, and ice making water is introduced into the ice making water storage part 171 through the water supply part 174a.

  The ice making water storage portion 171 is provided with a wall portion 173 that faces the inner peripheral surface of the auger 34 with the shaft portion 153 interposed therebetween, and extends from the shaft portion 153 with a gap therebetween. 34 and the shaft portion 153 so as to communicate with the gap. Further, the bearing portion 152 is provided with a through hole 152 a that communicates with a water passage (hole) 55 provided in the lower portion of the auger 34, and is formed in a space between the auger 34 and the ice making surface 40 of the refrigeration casing 33. Ice making water is supplied through the through hole 152a and the water passage 55. That is, in the ice making mechanism portion 170, ice making water exists inside and outside the shaft portion 153, and the ice making water exists on the sliding surface between the auger 34 and the bearing portion 152, so that this ice making water serves as a lubricant. It can function to suppress wear on the sliding surface. The wall portion 173 is separated from the auger 34 and the shaft portion 153, and since ice making water is present in the gap between the wall portion 173 and the shaft portion 153, the wall portion 173 is cooled by the refrigeration casing 33. Insulation is also achieved between the ice and the ice passage port 53. In addition, since the upper end of the shaft portion 153 communicates with the gap from between the auger 34 and the shaft portion 153, it adheres to the ice making water discharged from the inside of the bearing portion 152 and the ice conveyed to the auger 34. It is possible to return to the ice-making water storage unit 171 again as ice-making water without leaking out the outside water. At this time, foreign matter between the sliding surfaces can be smoothly discharged. Further, since the ice making water is supplied from the auger 34 side, not the cooled freezing casing 33 side, between the auger 34 and the ice making surface 40 of the refrigeration casing 33, supply failure due to freezing of the ice making water. Can be avoided.

The ice making water storage part 171 is made of, for example, a synthetic resin so that the bottom part 174 forming the bottom surface of the ice making water storage part 171 has lower thermal conductivity than the metal refrigeration casing 33. Then, the ice making water storage unit 171 has the bottom 174 placed on a mounting base 176 that is assembled to the ice making machine body, and the refrigeration casing 33 placed on the bottom 174 and the mounting base 176 are fixed with the bottom 174 interposed therebetween. ing. That is, since the bottom part 174 of the ice making water storage part 171 functions as a heat insulating member, heat exchange between the refrigeration casing 33 and the outside can be suppressed, and condensation on the mounting base 176 can be suppressed. Here, since the refrigeration casing 33 is screw-fixed to the lower end surface via the bottom portion 174 from below the mounting base 176, the refrigeration casing 33 is easily assembled. Incidentally, by using the ice making water reservoir as a heat insulating member, configured for mounting the ice making water reservoir to the mounting frame are applicable to another example of this and our examples.

(Example of change)
The present invention is not limited to the configuration of the embodiment, and can be modified as follows.

Refrigeration casing 33 shown in the embodiment is configured in a solid cylindrical shape in which is embedded a cooling pipe 42, the refrigeration casing 33 may be configured into a hollow cylindrical shape. That is, the inner wall 40 and the outer wall 41 are formed in a hollow cylindrical shape having a required thickness, and the cooling pipe 42 is disposed in the inner space so as to contact the inner side surface (back side surface) of the inner wall surface 40 and the outer wall surface 41. It may be the configuration.

In the embodiment , the configuration in which the driving means 36 for rotating the auger 34 is disposed above the ice making mechanism portion 32 is exemplified. However, the driving means 36 may be disposed below the ice making mechanism portion 32. . That is, the driving means 36 is fixed to the frame 38 below the ice making mechanism 32, the rotating shaft 56 connected to the upper portion of the auger 34 is extended downward, and the lower end of the rotating shaft 56 is connected to the driving means 36. Good.

Examples are only the internal wall surface 40 and the ice making surface, Reference Example 2, has been illustrated only the external wall 41 ice making surface and the auger type ice making machine, the present invention, the ice making surfaces of both sides of the inner wall 40 and outer wall 41 It is also applicable to the auger type ice making machine.

In the bearing portion described in another example of the embodiment, a placement portion that supports the thrust load of the auger is provided at the lower portion of the shaft portion, but a placement portion is provided at the middle portion or upper end portion of the shaft portion. You may comprise so that the step part formed in the auger corresponding to a mounting part may be mounted in a mounting part. Thus, by setting it as the structure which supports the thrust load of an auger in a mounting part, between the lower surface of an auger and a bearing part, between the ice-making surface of a freezing casing, and the 1st surrounding surface in an auger. A space that communicates can be provided, and water supply to the ice making surface can be performed more easily.

It is the schematic block diagram which fractured | ruptured and showed the auger type ice making machine concerning a premise example . It is the disassembled perspective view which isolate | separated and showed the main structural member of the auger type ice making machine of a premise example . It is the perspective view which looked at the structure of the auger from the upper side. It is the perspective view which looked at the structure of the base member from the lower side. It is the perspective view which looked at the structure of the ice collection member from the upper side. It is explanatory drawing sectional drawing of the principal part of the auger type ice making machine which showed the production | generation of ice, the conveyance, and discharge | release state at the time of equip | installing an ice collection member. It is explanatory drawing sectional drawing of the principal part of the auger type ice making machine which showed the production | generation, conveyance, and discharge | release state of ice when not mounting | wearing an ice collection member. It is the schematic block diagram which fractured | ruptured and showed the auger type ice making machine concerning the reference example 1. FIG. It is the schematic block diagram which fractured | ruptured and showed the auger type ice making machine which concerns on the reference example 2. FIG. It is the schematic block diagram which fractured | ruptured and showed the auger type ice making machine which concerns on the reference example 3. FIG. It is the schematic block diagram which fractured | ruptured and showed the auger type ice making machine concerning the reference example 4 . It is the schematic block diagram which fractured | ruptured and showed the auger type ice making machine based on an Example . It is a schematic diagram showing, partly in cross section, of the auger type ice making machine according to another example embodiment. FIG. 5 is a schematic configuration diagram showing a partially broken auger type ice making machine according to another example of Reference Example 3 ; FIG. 10 is a schematic configuration diagram showing a partially broken auger type ice making machine according to another example of Reference Example 4 ; It is the schematic block diagram which fractured | ruptured and showed the auger type ice making machine concerning a prior art example.

1 50, 15 5 ice making mechanism part, 33 refrigeration casing, 3 4 auger,
34 a first circumferential surface, 34 b second circumferential surface, 36 driving means,
37 Reservoir tank (ice making water storage part), 40 Internal wall surface (ice making surface),
41 External wall surface (ice making surface), 50 rotary blade , 1 5 2 bearing part, 153,165 shaft part,
15 4 Placement part, 156 Reservoir tank (ice making water storage part, bearing part )

Claims (9)

Comprising a auger or Ranaru ice making mechanism portion having a rotary blade which faces the freezing casings grayed Contact and the ice surface with the ice making surface which is cooled by the refrigeration circuit, the ice making surfaces by supplying ice making water to the ice making mechanism portion ice to generate, in the auger type ice making machine for conveying and separating the more the ice rotary blade of the auger for rotating,
Inside the ice making water storage section where the ice making water is stored, the ice making mechanism is disposed so as to be immersed in the ice making water ,
The auger is formed in a cylindrical shape corresponding to an ice making surface forming a circumferential surface in the refrigeration casing,
The auger has an axis line in a vertical direction by a bearing portion that supports a second circumferential surface opposite to the first circumferential surface on which the rotary blade is provided with a shaft portion so as to restrict the radial movement of the auger. An auger type ice making machine, wherein the auger type ice making machine is rotatably held . The ice-making water storage part is provided such that a wall part facing the peripheral surface of the auger across the shaft part extends with a gap from the shaft part, and the auger and the shaft at the upper end of the shaft part The auger type ice making machine according to claim 1, wherein the auger type ice making machine is configured to communicate with the gap from between the two parts . The ice making water storage part is set such that the bottom part forming the bottom surface of the ice making water storage part has lower thermal conductivity than the refrigeration casing,
The auger type ice making machine according to claim 1 or 2, wherein the ice making water storage unit is configured such that the bottom portion is placed on a mounting base, and the refrigeration casing placed on the bottom portion and the mounting base are fixed with the bottom portion interposed therebetween. . The auger type ice making machine according to claim 3 , wherein the refrigeration casing is screw-fixed to a lower end surface from below the mounting frame via the bottom portion . The auger type ice making machine according to any one of claims 1 to 4, wherein the auger includes a hole for guiding ice making water between the ice making surface of the refrigeration casing . The auger type ice making according to any one of claims 1 to 5, wherein the bearing portion includes a mounting portion that is provided so as to extend in a radial direction from the shaft portion and restricts the downward movement of the auger. Machine. The auger type ice making machine according to any one of claims 1 to 6 , wherein a driving means for rotating the auger is disposed above the ice making mechanism, and the driving means is connected to an upper portion of the auger. The auger type according to any one of claims 1 to 7 , wherein the auger is disposed outside the freezing casing and configured to peel off the ice generated on an external wall surface serving as an ice making surface of the freezing casing with an auger. Ice machine. The ice making mechanism is provided with the ice making surface on both the inside and outside of the cylindrical refrigeration casing,
The auger is formed in a double cylindrical shape having two inner and outer peripheral walls spaced apart in the radial direction, the inner and outer peripheral walls are arranged so as to sandwich the refrigeration casing, and each peripheral wall faces the ice making surface. The auger type ice making machine according to any one of claims 1 to 8, wherein each of the rotary blades is provided .

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