JP2014074548A - Ice maker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ice maker in which the relative arrangement positions of an ice making water tank and an ice forming part can be adequately maintained.SOLUTION: On an ice forming part 21, a case body 24 is mounted in the state of covering the ice forming part 21 and a heat insulating member 25. On the case body 24, a connection bracket 86 is provided which is provided non-movably relative to the ice forming part 21 in the vertical direction. On a tank fixing bracket 15 to which a reservoir tank 80 is fixed, a connection part 16 is provided for the connection bracket 86 to be fixed thereto. With the connection bracket 86 fixed to the connection part 16, the ice forming part 21 and the reservoir tank 80 can be relatively positioned in the vertical direction.

Description

  The present invention relates to an ice making machine that generates ice in an ice generating unit to which ice making water is supplied from an ice making water tank.

  FIG. 7 is a schematic configuration diagram of a conventional auger type ice making machine M1 provided with an ice making mechanism 100. The auger type ice making machine M1 is connected to an ice making mechanism 100 including an ice generating unit 101, a driving mechanism 102, and a refrigeration mechanism 103, and the ice making mechanism 100 via a connecting pipe 110, and supplies ice to the ice generating unit 101. And a reservoir tank 104 for storing water. As shown in FIG. 8, the ice generating unit 101 is a cylindrical cylinder 106 and an evaporator constituting the refrigeration mechanism 103, and a cooling pipe (not shown) spirally disposed on the outer periphery of the cylinder 106. ), And an auger screw 107 rotatably disposed in the cylinder 106 by the drive mechanism 102. In addition, the ice generating unit 101 is provided with a heat insulating member 109 outside the refrigeration casing 105 so as to cover a cooling pipe, and the cylinder 106 is kept in a cooled state.

  The auger type ice making machine M1 cools the refrigerant cooled by the operation of the refrigeration mechanism 103 while supplying the ice making water supplied to the reservoir tank 104 into the refrigeration casing 105 of the ice making mechanism 100 via the connecting pipe 110. When the cylinder 106 is cooled by passing it through the pipe, ice is generated on the ice making surface which is the inner peripheral surface of the cylinder 106. Then, by rotating the auger screw 107 at a constant speed by the drive mechanism 102, the ice generated on the ice making surface of the cylinder 106 is scraped off by the cutting blade of the auger screw 107 and conveyed upward. Such an ice making machine is disclosed in Patent Document 1.

JP-A-5-332649

  As shown in FIG. 8, the ice generating unit 101 of the ice making mechanism 100 in the conventional auger type ice making machine M <b> 1 includes the attachment pieces 111 </ b> A and 111 </ b> A provided at both ends of the attachment band 111 wound around the heat insulating member 109. Is fixed to the mounting receiving piece 113 provided at the end of the tank fixing bracket 112 with the screws 114 and 114 so as to be supported by the tank fixing bracket 112. However, since the attachment band 111 is only wrapped around an appropriate position on the outer surface of the heat insulating member 109 disposed on the ice generation unit 101, the ice generation unit 101 is fixed when the attachment band 111 is fixed to the tank fixing bracket 112. It is not configured to regulate the position in the vertical direction. For this reason, since the relative positional relationship between the ice generating unit 101 and the reservoir tank 104 is not uniquely determined in the vertical direction for each auger type ice making machine M1, the ice with respect to the water surface L1 of the ice making water in the reservoir tank 104 is determined. There has been a problem in that the position of the water surface L2 of the ice making water in the generating unit 101 (see FIG. 7) varies. In particular, the heat insulating member 109 made of foam is easily deformed when an external force is applied, and may be deformed over time due to deterioration due to a change in ambient temperature. The arrangement position of the part 101 sometimes changed.

  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 the relative arrangement positions of the ice-making water tank and the ice generating unit are determined. An object of the present invention is to provide an ice making machine that can be properly maintained.

In order to solve the above-described problems and achieve the intended purpose suitably, the ice making machine of the invention according to claim 1 of the present application is:
An ice generating unit that generates ice; and an ice making water tank that communicates with the ice generating unit via a connecting pipe and that temporarily stores ice making water supplied to the ice generating unit. In an ice making machine configured to have the same level of ice making water inside and inside the ice generating unit,
A mounting portion provided immovably in the vertical direction with respect to the ice generating portion;
Provided in a tank support portion to which the ice making water tank is fixed, and an attachment receiving portion to which the attachment portion is fixed;
The gist is that, by fixing the attachment portion to the attachment receiving portion, the ice generating portion and the ice-making water tank can be relatively positioned in the vertical direction.

  According to the first aspect of the present invention, the mounting part that is immovable in the vertical direction with respect to the ice generating part is fixed to the mounting receiving part that is provided in the tank support part in which the ice making water tank is installed. Therefore, the relative position in the vertical direction between the ice generating unit and the ice making water tank can be maintained constant, and an appropriate amount of ice making water can be supplied to the ice generating unit. And it can prevent that the relative position of an ice production | generation part and an ice making water tank changes with time.

In the invention according to claim 2,
A case body is attached to the ice generating part in a state of covering the ice generating part,
The gist is that the case body is provided with the mounting portion.
According to the invention which concerns on Claim 2, an ice formation part can be appropriately fixed to a tank support part via a case body.

  According to the ice making machine of the present invention, the relative arrangement position of the ice making water tank and the ice generating unit can be appropriately maintained.

It is the II sectional view taken on the line of FIG. It is the II-II sectional view taken on the line of FIG. It is the perspective view which looked at the ice production | generation part of the ice making mechanism in the auger type ice making machine of an Example from the right rear. It is a perspective view which decomposes | disassembles and shows the freezing cylinder of an ice production | generation part, and the cover member attached to this freezing cylinder. It is a front view which shows the ice making mechanism and reservoir tank which were arrange | positioned at the ice making machine main body of the auger type ice making machine of an Example. It is a perspective view which shows the structure which fixes the case body attached to the ice production | generation part to the tank fixing bracket by which the reservoir tank was arrange | positioned. It is a front view which shows the inside of the ice making machine main body of the conventional auger type ice making machine. It is a perspective view which shows the structure of the ice production | generation part in the conventional auger type ice making machine.

  Next, the ice making mechanism of the ice making machine according to the present invention will be described below with reference to the accompanying drawings by giving a preferred embodiment. In the embodiment, an auger type ice making machine is illustrated as an ice making machine. In the embodiment, the left-right direction of FIG. 5 is the “left-right direction” of the ice machine, the direction orthogonal to the paper surface of FIG. 5 is the “front-back direction” of the ice machine, and the vertical direction of FIG. Refer to it.

  FIG. 5 is a schematic configuration diagram of an auger type ice making machine M according to the embodiment. The auger type ice making machine M according to the embodiment includes an ice making mechanism 20 and a reservoir tank (ice making water tank) 80 for supplying ice making water to the ice making mechanism 20 inside the ice making machine body 10. The ice making mechanism 20 is disposed in the ice generating unit 21 that generates ice, the drive mechanism 22 that rotates the auger screw 31 (see FIG. 2) disposed in the ice generating unit 21 at a constant speed, and the ice generating unit 21. And a refrigeration mechanism 23 for cooling the cylinder 33 (see FIGS. 1 and 2). In addition, the ice making mechanism 20 includes a case body 24 attached to the outside of the ice generation unit 21, and a heat insulating member 25 disposed in the case body 24 and covering the ice generation region 21 </ b> A of the ice generation unit 21. I have. The reservoir tank 80 is connected to the lower part of the ice generating unit 21 via a connection pipe 81 capable of circulating ice making water, and the ice making water supplied to the reservoir tank 80 is connected to the ice generating unit via the connection pipe 81. It is comprised so that water may be supplied into 21.

  As shown in FIGS. 2 and 4, the ice generator 21 includes a cylindrical refrigeration casing 30 that extends in the vertical direction, and an auger screw 31 that is concentrically disposed inside the refrigeration casing 30. I have. The refrigeration casing 30 is an evaporator that constitutes the refrigeration mechanism 23, and a cylinder 33 that is erected on an upper portion of a housing 32 (see FIG. 5) and that has a cylindrical shape and an inner wall surface that is an ice making surface 34. And a cooling pipe 35 that is wound and fixed in a spiral manner in contact with the outer peripheral surface of the cylinder 33. The cylinder 33 is formed of stainless steel or the like that is excellent in wear resistance and rust prevention and has high thermal conductivity. Therefore, in the refrigeration casing 30, the cylinder 33 is cooled by the cooling pipe 35 cooled by the operation of the refrigeration mechanism 23, and the ice making water can be frozen on the ice making surface 34 of the cylinder 33.

  As shown in FIGS. 1 and 4, the refrigeration casing 30 includes a ring-shaped first positioning member 36 extending in a circumferential direction of the cylinder 33 at a portion adjacent to the lower side of the cooling pipe 35 in the cylinder 33. And a ring-shaped second positioning member 37 extending in the circumferential direction of the cylinder 33 is fixed to a portion of the cylinder 33 adjacent to the upper side of the cooling pipe 35. The first positioning member 36 is in contact with the lower left and right lower wall portions 53, 63 of the case body 24 so as to restrict the case body 24 from moving upward with respect to the cylinder 33, and the second positioning member 36 The member 37 comes into contact with the upper wall portion 71 of the case body 24 from below, and restricts the case body 24 from moving downward with respect to the cylinder 33. That is, the vertical distance between the lower surface of the first positioning member 36 and the upper surface of the second positioning member 37 is the vertical direction between the upper surfaces of the lower wall portions 53 and 63 and the lower surface of the upper wall portion 71 in the case body 24. The case body 24 attached to the ice generating unit 21 is configured to be immovable in the vertical direction with respect to the cylinder 33.

  As shown in FIGS. 2 and 3, the auger screw 31 is formed to have a diameter smaller than the inner diameter of the cylinder 33, and a rotary shaft 40 disposed so that an axial center extends vertically in the cylinder 33. A cutting blade 41 extending in the radial direction and spirally extending in the circumferential direction is provided on the outer peripheral surface of the rotating shaft 40. The rotary shaft 40 has a lower end connected to and supported by the drive mechanism 22, and an upper end supported rotatably by a fixed blade (not shown) disposed in the refrigeration casing 30. A cutter (not shown) is disposed on the auger screw 31. Accordingly, the ice generated on the ice making surface 34 of the cylinder 33 is scraped from the ice making surface 34 by the cutting blade 41 of the auger screw 31 that is rotated by the drive of the drive mechanism 22 and then pushed upward by the cutting blade 41. After being appropriately cut by a cutter and a fixed blade, it is transported into an ice storage unit (not shown).

  The drive mechanism 22 is installed on the base frame 11 as shown in FIG. 5, and a speed reducer 42 connected to the lower end of the rotating shaft 40 of the auger screw 31, and a drive as drive means linked to the speed reducer 42. And a motor 43. Therefore, by driving the drive motor 43, the auger screw 31 is rotated at a constant speed in a predetermined direction via the speed reducer.

  As shown in FIG. 5, the refrigeration mechanism 23 includes a compressor 45, a condenser 46 connected to a refrigerant outlet side of the compressor 45 via a refrigerant pipe 47, and a refrigerant of the condenser 46. An expansion valve (not shown) having a refrigerant inlet side connected to the outlet side via a refrigerant pipe 47, a refrigerant inlet side being connected to the refrigerant outlet side of the expansion valve via a refrigerant pipe 47, and the refrigerant outlet side being a compressor The cooling pipe 35 is connected to the refrigerant inlet side 45 via the refrigerant pipe 47 and wound around the cylinder 33 to form a closed circuit. And the refrigerant | coolant which consists of combustible gas is enclosed in the freezing mechanism 23. FIG. In such a refrigeration mechanism 23, during the ice making operation of the ice making mechanism 20, the refrigerant is converted into a high-pressure gas by the compressor 45, the refrigerant is cooled to a high-pressure liquid by the condenser 46, and the refrigerant is adiabatically expanded by an expansion valve. The refrigerant is vaporized in the cooling pipe 35, and the cooling pipe 35 is cooled by heat of vaporization. Here, the combustible gas used as the refrigerant is an HC (hydrocarbon) refrigerant, such as propane (R290) or isobutane (R600a). As shown in FIGS. 2 to 4, sealing members 48, 48 are respectively disposed at the connecting portions of the cooling pipe 35 to the refrigerant pipes 47, 47, and the second case member of the case body 24 is provided. The first through holes 67 </ b> A and 67 </ b> B formed in 60 are fitted.

  As shown in FIGS. 1 to 4, the case body 24 includes first to third case members 50, 60, and 70. The first case member 50 and the second case member 60 are assembled together. The third case member 70 is assembled to the first case member 50 and the second case member 60 to form a hollow box. The case body 24 of the embodiment is configured as a rectangular box body by assembling the first to third case members 50, 60, and 70 together. Each of the first to third case members 50, 60, 70 is made of a non-combustible material. In the embodiment, a stainless steel plate is used as the incombustible material, and the first to third case members 50, 60, 70 are formed by bending the plate.

  As shown in FIGS. 2 and 4, the first case member 50 includes a front wall portion 51 that forms the front wall of the case body 24, a left wall portion 52 that forms the left wall of the case body 24, and a case body. 24 is a member formed integrally with a lower left wall portion 53 constituting the left half of the bottom wall. A front mounting piece 54 is provided at the upper end of the front wall portion 51 and extends to the left and right and extends forward. The left end of the left wall portion 52 extends to the left and right and extends to the left. A mounting piece 55 is provided. A rear wall mounting piece 56 is provided at the rear end of the left wall portion 52 so as to extend vertically and to the right. The left wall 52 is formed with an inlet 57 for injecting the foaming agent into the case body 24. A semicircular first recess 58 that is aligned with the outer peripheral surface of the cylinder 33 is formed at the right end of the left lower wall portion 53 so as to open to the right.

  As shown in FIG. 4, the first case member 50 includes a plurality of (four in the embodiment) first locking holes 59 </ b> A through which the rivets 85 are inserted into the rear wall mounting piece 56 at a predetermined interval. An opening is formed apart from each other. In addition, a plurality of (four in the embodiment) second locking holes 59B through which the rivets 85 are inserted are opened in the vertical direction at predetermined intervals in the vicinity of the right end of the front wall portion 51 of the first case member 50. A plurality of (two in the embodiment) third locking holes 59 </ b> C through which the rivets 85 are inserted are formed near the right end of the left lower wall portion 53.

  As shown in FIGS. 2 and 4, the second case member 60 includes a right wall portion 61 constituting the right wall of the case body 24, a rear wall portion 62 constituting the rear wall of the case body 24, and a case body. 24 is a member formed integrally with the lower right wall 63 constituting the right half of the bottom wall of 24. A right mounting piece 64 is provided at the upper end of the right wall portion 61 and extends to the left and right and extends to the left. The upper end of the rear wall portion 62 extends to the left and right and extends rearward. A mounting piece 65 is provided. A front wall attachment piece 66 is provided at the front end of the right wall portion 61 so as to extend vertically and to the left. The right wall portion 61 is formed with a first through hole 67A and a second through hole 67B through which the cooling pipe 35 is inserted. A semicircular second recess 68 that matches the outer peripheral surface of the cylinder 33 is formed at the right end of the lower right wall 63 so as to open to the left. Further, at the right end of the lower right wall portion 63, bottom wall mounting pieces 63A and 63A extending leftward are provided on the front side and the rear side across the second recess 68.

  As shown in FIG. 4, the second case member 60 has a plurality of (four in the embodiment) fourth locking holes 69 </ b> A through which the rivets 85 are inserted into the front wall mounting pieces 66 at the vertical intervals. An opening is formed apart from each other. In addition, a plurality (four in the embodiment) of fifth locking holes 69B through which the rivets 85 are inserted are opened in the vertical direction at predetermined intervals in the vicinity of the left end of the rear wall portion 62 of the second case member 60. In addition, a plurality of (two in the embodiment) sixth locking holes 69C through which the rivets 85 are inserted are formed in the bottom wall mounting pieces 63A and 63A.

  As shown in FIG. 4, the first case member 50 and the second case member 60 are fixed to each other by caulking rivets. That is, when the left end portion of the rear wall portion 62 of the second case member 60 is positioned with respect to the rear surface of the rear wall mounting piece 56 of the first case member 50, the first locking holes 59A of the first case member 50 and Since the fifth locking holes 69B of the second case member 60 are aligned in the front-rear direction, the first case can be obtained by caulking the rivets 85 inserted from the fifth locking holes 69B into the first locking holes 59A. The rear wall mounting piece 56 of the member 50 and the rear wall portion 62 of the second case member 60 are fixed in close contact with each other. Further, when the right end portion of the front wall portion 51 of the first case member 50 is positioned with respect to the front surface of the front wall mounting piece 66 of the second case member 60, each of the fourth locking holes 69A of the second case member 60 and Since the second locking holes 59B of the first case member 50 are aligned in the front-rear direction, the second case can be obtained by caulking the rivets 85 inserted from the second locking holes 59B into the fourth locking holes 69A. The front wall mounting piece 66 of the member 60 and the front wall portion 51 of the first case member 50 are fixed in close contact with each other. Further, when the bottom wall mounting pieces 63A and 63A of the second case member 60 are positioned with respect to the lower surface of the left lower wall portion 53 of the first case member 50, the third locking holes 59C and 59C of the first case member 50 are positioned. And the sixth locking holes 69C and 69C of the second case member 60 are aligned vertically, and by crimping the rivet 85 inserted from the sixth locking hole 69C into the third locking hole 59C, The bottom wall mounting pieces 63A, 63A of the second case member 60 and the lower left wall portion 53 of the first case member 50 are fixed in a state of being in close contact with each other.

  The bottom wall mounting pieces 63A, 63A of the second case member 60 and the left lower wall portion 53 of the first case member 50 are fixed in close contact with each other, so that the right lower wall portion 63 of the second case member 60 is fixed. The left end and the right end of the left lower wall portion 53 of the first case member 50 are in contact with each other, and the first recess 58 of the left lower wall portion 53 and the second recess 68 of the right lower wall portion 63 allow the refrigeration casing 30 to A circular lower opening 26 that allows the cylinder 33 to pass therethrough is formed. The inner diameter of the lower opening 26 is set substantially the same as the outer diameter of the cylinder 33 and is set smaller than the outer diameter of the first positioning member 36 disposed in the cylinder 33 (see FIG. 1).

  As shown in FIGS. 1, 3, and 4, the third case member 70 includes a rectangular upper wall portion 71 and an outer peripheral wall portion 72 that extends upward from the outer peripheral end of the upper wall portion 71. And. The left-right width of the third case member 70 is the same or substantially the same as the left-right width of the left end of the left mounting piece 55 provided on the first case member 50 and the right end of the right mounting piece 64 provided on the second case member 60. Is set to The front-rear width of the third case member 70 is larger than the front-rear width between the front end of the front mounting piece 54 provided on the first case member 50 and the rear end of the rear mounting piece 65 provided on the second case member 60. Is set. As shown in FIG. 1, the third case member 70 aligns the front end of the third case member 70 with the front end of the front mounting piece 54 of the first case member 50, and the rear mounting piece of the second case member 60. The first case member 50 and the second case member 60 are fixed to the upper portions of the first case member 50 and the second case member 60 in a state of extending backward from 65. The third case member 70 is fixed to the first case member 50 and the second case member 60 with a predetermined jig when the heat insulating member 25 is foam-molded in the case body 24, as will be described later. Thus, the first case member 50 and the second case member 60 are bonded and fixed by the adhesive action of the foam.

  As shown in FIGS. 1 and 4, an upper opening portion 27 into which the cylinder 33 of the refrigeration casing 30 can be inserted is formed in the upper wall portion 71 of the third case member 70. The inner diameter of the upper opening 27 is set substantially the same as the outer diameter of the cylinder 33 and is set smaller than the outer diameter of the second positioning member 37 disposed in the cylinder 33. Further, a drain pipe (drainage part) 73 extending downward is disposed on the left side of the rear part of the upper wall part 71, and the liquid (water or the like) dropped on the upper wall part 71 of the third case member 70 is drained. The third case member 70 can function as a drain pan, and can be discharged through a pipe 73. If the upper wall portion 71 is set so as to be appropriately inclined downward toward the drainage pipe 73 in a state where the case body 24 is attached to the refrigeration casing 30, the liquid received on the upper surface of the upper wall portion 71 is transferred to the drainage pipe 73. Since it flows, drainage efficiency can be increased.

  The case body 24 formed by assembling the first to third case members 50, 60, 70 formed of a stainless steel plate material by the adhesive action of the plurality of rivets 85 and the foam is the case body 24 itself. Therefore, even if an external force is applied, deformation is difficult to occur. The case body 24 is also less likely to be thermally deformed due to a change in ambient temperature. Furthermore, since the case body 24 is a nonflammable member made of stainless steel, it does not ignite and burn.

  The heat insulating member 25 was foam-molded by causing a foaming raw material containing a foaming agent to undergo a foaming reaction in the space S defined in the case body 24 with the case body 24 attached to the refrigeration casing 30. It is a foam. That is, after injecting a predetermined amount of foaming raw material into the space S of the case body 24 through the inlet 57 provided in the first case member 50, the inlet 57 is covered with the lid member 57A. If it waits until predetermined | prescribed cure time passes, the foaming raw material expanded by foaming reaction will harden | cure in the state with which the whole space S was filled, and the foam formed by this will become the heat insulation member 25. FIG. Accordingly, the heat insulating member 25 is in close contact with the outer peripheral surface of the cylinder 33 and the outer surface of the cooling pipe 35 and the inner wall surface of the case body 24 in the refrigeration casing 30 and appropriately covers the ice generating region 21A of the ice generating unit 21. Arranged.

  The foaming agent used when foam-molding the heat insulating member 25 is a so-called non-fluorocarbon foaming agent that does not contain chlorofluorocarbon, which has a high environmental load, and has a significantly reduced environmental load compared to alternative chlorofluorocarbons. Here, as the non-fluorocarbon blowing agent, for example, cyclopentane is used. This cyclopentane has characteristics that do not destroy the ozone layer and have little influence on global warming. And the heat insulation member 25 foam-molded using cyclopentane as a foaming agent has many air bubbles formed therein and has good heat insulation performance.

  As shown in FIGS. 5 and 6, the auger type ice making machine M according to the embodiment includes a case body 24 attached to the ice generating unit 21 and a tank fixing bracket (tank support unit) 15 provided with a reservoir tank 80. By fixing to ice, the ice generating unit 21 is configured to be stably fixed and held. That is, on the outer surface of the left wall portion 52 of the first case member 50 in the case body 24, a connecting bracket (mounting portion) 86 connected to the tank fixing bracket 15 is arranged at a position facing the right end of the tank fixing bracket 15. It is installed. The case body 24 is connected and fixed to the tank fixing bracket 15 via the connecting bracket 86, so that the ice generating unit 21 is stably supported by the tank fixing bracket 15, and the ice generating unit 21 and the reservoir The relative positional relationship with the tank 80 can be kept constant.

  As shown in FIGS. 4 to 6, the connecting bracket 86 includes a fixing piece 87 that is fixed in a state of extending in the front-rear direction with respect to the left wall portion 52 of the first case member 50, and the fixing piece 87. The connecting piece 88 extends leftward from the upper end and extends in the front-rear direction. The fixing piece 87 is fixed to the left wall portion 52 of the first case member 50 by a plurality of (three in the embodiment) first screws 89. Further, the connecting piece 88 is provided with a plurality of (three in the embodiment) screw insertion holes 90 penetrating in the vertical direction so as to be separated from each other in the front-rear direction.

  As shown in FIGS. 5 and 6, the tank fixing bracket 15 is formed in a rectangular plate shape that can be installed with the reservoir tank 80 placed thereon, and the left end portion 15 </ b> A of the fixing bracket 15 connects the ice making machine body 10. It is fixed to the left frame 12 that constitutes, and the front right end of the fixed bracket 15 is connected to the lower end portion of the support stay 14 that is suspended with the upper end portion connected to the upper frame 13. That is, the left and right ends of the tank fixing bracket 15 are supported by the left frame 12 and the upper frame 13 of the ice making machine body 10 so that the weight of the reservoir tank 80 storing ice-making water can be suitably supported. Has been.

  On the right end side of the tank fixing bracket 15, as shown in FIGS. 5 and 6, there is a connecting portion (attachment receiving portion) 16 to which the connecting piece 88 of the connecting bracket 86 disposed on the case body 24 is fixed. Is provided. In the connecting portion 16, screw fastening holes 17 corresponding to the three screw insertion holes 90 provided in the connecting piece 88 of the connecting bracket 86 are formed at required intervals in the front-rear direction. The connection bracket 86 disposed on the case body 24 attached to the ice generation unit 21 is positioned below the connection unit 16 of the tank fixing bracket 15 by setting the ice generation unit 21 in the housing 32. The screw insertion holes 90, 90, 90 are aligned with the screw fastening holes 17, 17, 17. Therefore, by fastening the second screw 91 to the screw fastening hole 17 through the screw insertion hole 90, the ice generating part 21 is fixed in a state where it is properly positioned on the tank fixing bracket 15.

  As shown in FIG. 5, the reservoir tank 80 installed on the upper surface of the tank fixing bracket 15 is installed on the left side of the refrigeration casing 30 so as to be located above the vertical center of the refrigeration casing 30. In the upper part of the reservoir tank 80, a water supply valve 82 connected to a water source (not shown) to which tap water as ice making water is supplied is disposed, and when the water supply valve 82 is controlled to open, Is supplied into the reservoir tank 80. A connecting pipe 81 connected to an introduction pipe 33A provided at the lower part of the refrigeration casing 30 is connected to the bottom of the reservoir tank 80, and the inside of the reservoir tank 80 and the inside of the cylinder 33 of the refrigeration casing 30 are connected. The connection pipe 81 communicates spatially. Accordingly, the ice making water supplied to the reservoir tank 80 flows into the cylinder 33 through the connecting pipe 81 and fills the connecting pipe 81, and the surface L2 of the ice making water flowing into the cylinder 33 is filled. And the level L1 of the ice making water temporarily stored in the reservoir tank 80 are always matched when the ice making water increases or decreases.

  In the auger type ice making machine M of the embodiment configured as described above, the refrigeration casing 30 is assembled by soldering and fixing the cooling pipe 35 around the outer peripheral surface of the cylinder 33. Further, the first positioning member 36 and the second positioning member 37 are attached to the outer surface of the cylinder 33 at a predetermined interval. Further, sealing members 48 and 48 are attached to both ends of the cooling pipe 35, and refrigerant pipes 47 and 47 are connected to both ends of the cooling pipe 35.

  Next, as shown in FIG. 4, the first case member 50 and the second case member 60 that are individually formed are assembled to each other by a plurality of rivets 85 while sandwiching the refrigeration casing 30. At this time, the refrigerant pipes 47, 47 connected to the cooling pipe 35 are inserted into the first through hole 67A and the second through hole 67B formed in the second case member 60, so that the cooling pipe 35 The arranged sealing members 48, 48 are positioned in the first through hole 67A and the second through hole 67B, and the gap between the through holes 67A, 67B and the cooling pipe 35 is sealed. Further, the first recess 58 of the first case member 50 and the second recess 68 of the second case member 60 are brought into contact with the cylinder 33 just below the first positioning member 36.

  Next, as shown in FIG. 4, the first case member 50 and the second case member are inserted into the upper case 27 of the third case member 70 through the upper opening 27 provided in the upper wall portion 71. Attach to 60. That is, the outer periphery of the upper wall portion 71 is attached to the front mounting piece 54 and the left mounting piece 44 of the first case member 50 and the right mounting piece 64 and the rear mounting piece 65 of the second case member 60 using a predetermined jig. The third case member 70 is fixed so that the portions are in close contact. At this time, the upper wall portion 71 of the third case member 70 contacts the upper surface of the second positioning member 37.

  As described above, by attaching the first to third case members 50, 60, 70 to the cylinder 33 of the refrigeration casing 30 while assembling, the left and right lower wall portions 53, 63 of the case body 24 become the first positioning members. 36, the upper wall 71 comes into contact with the upper surface of the second positioning member 37, and the case body 24 is attached to the ice generating unit 21 at an appropriate position. Further, the left and right lower wall portions 53, 63 and the upper wall portion 71 are in a state in which the first positioning member 36 and the second positioning member 37 are sandwiched from above and below, so that the case body 24 moves vertically with respect to the cylinder 33. It can be attached without shaking in the direction.

  Next, a predetermined amount of foaming raw material using a non-fluorocarbon foaming agent is injected into the case body 24 from the injection port 57 formed in the first case member 50 of the case body 24, and the injection port 57 is injected after the injection is completed. The lid member 57A is attached. The foaming raw material injected into the space S of the case body 24 starts a foaming reaction immediately after the injection and gradually fills the space S. After a predetermined curing time has elapsed, the foaming material expands into the entire space S. A heat insulating member 25 made of a body is formed. The upper wall 71 of the third case member 70 is formed by the front attachment piece 54 and the left attachment piece 44 of the first case member 50 and the right attachment piece 64 and the rear attachment piece of the second case member 60 by the adhesive action of the foam. Once bonded to 65, the jig that has fixed the third case member 70 to the first case member 50 and the second case member 60 is removed.

  The ice generating part 21 of the ice making mechanism 20 formed as described above is disposed on the upper part of the housing 32 connected to the speed reducer 42 of the drive mechanism 22 after the connection bracket 86 is attached to the case body 24. At this time, since the connecting bracket 86 is positioned below the connecting portion 16 of the tank fixing bracket 15 fixed to the ice making machine body 10, the connecting piece 88 of the connecting bracket 86 is connected to the tank fixing bracket by the second screw 91. By fixing to 15, the ice generating part 21 is fixedly supported by the tank fixing bracket 15.

  Therefore, according to the auger type ice making machine M of the embodiment configured as described above, since the heat insulating member 25 is covered with the case body 24 and is not exposed to the outside, deterioration of the heat insulating member 25 can be suppressed. At the same time, the outer surface of the heat insulating member 25 is prevented from being damaged by contact with other members. In addition, the case body 24 is configured so that the liquid dropped on the upper part can be received and discharged by the third case member 70, and liquid such as water can be obtained by the first to third sealing members 36, 37, 48. However, it is difficult for the liquid to penetrate into the foamed layer of the heat insulating member 25. Accordingly, it is possible to prevent the heat insulating performance of the heat insulating member 25 from being deteriorated due to moisture permeating into the foamed layer, and to maintain the heat insulating performance of the heat insulating member 25 for a long period of time.

  Further, since the heat insulating member 25 that covers the ice generating region 21A of the ice generating unit 21 is made of a foam formed by a foaming reaction of a foaming stock solution using a non-fluorocarbon foaming agent that does not contain chlorofluorocarbon. When the member 25 is molded, the environmental load can be reduced, and the environmental load can be reduced as compared with the case where a conventional foaming agent made of chlorofluorocarbon-free alternatives is used.

  Further, since the heat insulating member 25 is foam-molded in the case body 24, the work process of shaping the heat insulating member 25 into a required shape in advance and the work process of attaching the heat insulating member 25 to the outside of the refrigeration casing 30 are omitted. . Thereby, the efficiency of the assembly operation of the ice making mechanism 20 can be improved, and the manufacturing cost can be reduced.

  Further, according to the auger type ice making machine M of the embodiment, the vertical positioning is performed on the case body 24 which is attached to the cylinder 33 in the refrigeration casing 30 of the ice generating unit 21 so as not to move in the vertical direction at an appropriate position. Since the connecting bracket 86 arranged in the state where the proof is made is fixed to the tank fixing bracket 15 fixed to the ice making machine main body 10, the reservoir tank 80 attached to the tank fixing bracket 15 and the ice generating unit 21 are fixed. The relative arrangement position with the refrigeration casing 30 can be kept constant. In particular, since the relative position in the vertical direction of the reservoir tank 80 and the frozen case sink 30 can be kept constant, the water surface L1 of the ice-making water supplied to the reservoir tank 80 can be confirmed to enter the cylinder 33 of the refrigeration casing 30. The position of the water surface L <b> 2 of the supplied ice making water can be reliably grasped, and an appropriate amount of ice making water can always be supplied to the refrigeration casing 30. Further, for each auger type ice making machine M, it is difficult for the relative arrangement position of the reservoir tank 80 and the ice generating unit 21 to vary, so that the ice generation capacity and the moisture content in the transported ice are reduced. Variations are less likely to occur.

(Example of change)
The ice making mechanism of the ice making machine according to the present invention is not limited to the form exemplified in the embodiment, and various modifications can be made.
(1) The case body 24 is not limited to the rectangular box body exemplified in the embodiment, but may be a cylindrical box body or a triangular or pentagonal or more polygonal box body.
(2) The incombustible material forming the first to third case members 50, 60, and 70 in the case body 24 is not limited to the stainless steel exemplified in the embodiment, but other incombustible metals and composites. Resin may be used. Synthetic resins are those having an oxygen index of 26 or more having nonflammability according to the oxygen index calculated according to JIS K7201 “Combustion test method of polymer material by oxygen index method”. When each of the third case members 50, 60, 70 is made of a synthetic resin, it is formed of a synthetic resin having an oxygen index of 26 or more.
(3) In the embodiment, the case body 24 exemplifies a form in which the first case member 50 and the second case member 60 are connected by the plurality of rivets 85. However, the case members 50 and 60 may be formed by spot welding or soldering. You may make it connect by attaching or brazing. The third case member 70, the first case member 50, and the second case member 60 may be connected by a rivet 85, or may be connected by welding, soldering, or brazing.
(4) The foaming agent used when foaming the foam constituting the heat insulating member 25 is not limited to the cyclopentane exemplified in the examples, and various non-fluorocarbon foaming agents not containing Freon can be employed.
(5) The heat insulating member 25 is not limited to being foam-molded in the case body 24, but may be disposed outside the refrigeration casing 30 by being foam-molded into a required shape in advance. Moreover, the heat insulation member 25 should just be the shape and size which coat | cover the ice production | generation area | region 21A of the ice production | generation part 21, and may not be the shape which fills the whole space S of the case body 24. FIG.
(6) The connection bracket 86 may be formed integrally with the case body 24. Further, the connecting bracket 86 is not limited to the shape exemplified in the embodiment, and various shapes and forms are possible as long as the ice generating part 21 can be appropriately fixed to the tank fixing bracket 15. .
(7) The combustible gas used as the refrigerant is not limited to those exemplified in the embodiment, and HF01234yf may be adopted.

15 Tank fixing bracket (tank support part), 16 connection part (mounting receiving part)
21 Ice generating part, 24 case body, 80 reservoir tank (ice making water tank)
81 Connection pipe, 86 Connection bracket (mounting part)

Claims (2)

The ice generator (21) that generates ice communicates with the ice generator (21) via the connecting pipe (81), and ice-making water supplied to the ice generator (21) is temporarily stored. An ice making water tank (80), and an ice making machine configured to have the same ice making water level in the ice making water tank (80) and in the ice generating part (21),
A mounting portion (86) provided immovable in the vertical direction with respect to the ice generating portion (21);
The ice making water tank (80) is provided in a fixed tank support part (15), and includes an attachment receiving part (16) to which the attachment part (86) is fixed,
By fixing the mounting portion (86) to the mounting receiving portion (16), the ice generating portion (21) and the ice-making water tank (80) can be relatively positioned in the vertical direction. An ice machine. A case body (24) is attached to the ice generator (21) in a state of covering the ice generator (21),
The ice making machine according to claim 1, wherein the case body (24) is provided with the mounting portion (86).

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