JPH0564680U - Whitening prevention mechanism of ice machine - Google Patents

Abstract

(57) [Summary] [Object] To provide a mechanism capable of effectively preventing clouding of an ice block in an ice making machine that forms an ice block around an ice making section immersed in ice making water. [Structure] In an ice making machine in which an ice making unit cooled by an evaporation tube is immersed in ice making water in a water tray to form an ice block around the ice making unit, the ice making unit is swingable in an ice making chamber defined on the water tray. The rocking plate is housed and arranged, and the rocking plate is rocked inside the ice making chamber during the ice making operation under the engaging action of the rocking means arranged outside the water tray and the rocking plate, By moving the ice making water in the ice making room up and down, clouding of ice blocks is prevented. [Effect] In the ice making machine of the above type, since the ice making water is constantly moved by the rocking action of the rocking plate during the ice making operation, the obtained ice block does not become cloudy, is transparent and clear, and has a product price. high. Further, the rocking plate also has a function of receiving an ice block that is released from the ice making section and falls by its own weight during the deicing operation by its inclined surface to smoothly guide it to the storage chamber.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mechanism for preventing clouding of an ice making machine. More specifically, the ice making operation is performed by immersing a large number of ice making projections on the lower surface of an ice making substrate in ice making water in an ice making chamber defined inside a water tray. In an ice-making machine that forms an inverted dome-shaped ice block around the ice-making projections, the ice-making water in the water tray should always be moved during the ice-making operation in consideration of the resulting ice block becoming cloudy. In addition, the present invention relates to a white turbidity prevention mechanism capable of producing a transparent ice block having a high commodity price.

[0002]

[Prior art]

 Many types of ice making machines have been proposed as automatic ice making machines for continuously producing a large number of ice blocks such as ice cubes, and an appropriate method is adopted depending on the application. For example, a large number of partition plates are arranged vertically and horizontally to define a large number of ice-making small chambers that open downward, and the water trays below are used to spray and supply ice-making water to the corresponding ice-making small chambers. Do not use a closed cell type ice making machine that forms ice cubes in each ice making chamber that is cooled by an evaporation pipe connected to the refrigeration system or the water tray, and put ice making water from below into these ice making chambers. By spraying, ice cubes are formed in each small chamber on an open-cell type ice maker or on one side of an upright placed ice maker. There is known a water-flowing type ice making machine that forms a large number of kamaboko-shaped ice blocks.

The above-mentioned three types of ice making machines are each equipped with an ice making water tank for storing a required amount of ice making water, and the ice making water in the tank is pumped to the ice making unit of the ice making unit. Alternatively, a forced circulation mechanism is adopted in which ice-making water supplied to an upright ice-making plate and not frozen is collected in the tank and then sent again to the ice-making unit. Therefore, these ice making machines require additional equipment such as an ice making water tank and a pump that circulates ice making water, which complicates the configuration, raises the manufacturing cost, and also contributes to the increase in size. On the other hand, the ice-making water is stored in a water tray at a required level, and the ice-making projections that hang down from the lower surface of the ice-making substrate on which the evaporation pipe is arranged are dipped into the ice-making water. A simple ice-making machine that forms ice blocks around has already been proposed. This ice maker does not require a mechanism to circulate the ice making water between the water tray and the ice making water tank during the ice making operation, so it can be structurally simplified and the manufacturing cost can be suppressed, and the size can be reduced. It has the advantage of being able to manufacture an ice maker designed for the purpose.

[0004]

[Problems to be solved by the device]

 As described above, in an ice making machine in which a large number of ice-making protrusions that have been cooled and held can be formed into ice blocks around the protrusions by simply immersing the ice-making protrusions in the ice-making water in the water tray, it is natural that The ice making water does not circulate at all, and is kept in a so-called "stationary state". For this reason, the ice blocks gradually formed around the ice making protrusions become cloudy and opaque due to the influence of the air dissolved in the ice making water. The fact that the obtained ice blocks are cloudy per se does not generally pose any problem for the original purpose of cooling the ice. However, when this cloudy ice is used for eating and drinking in coffee shops, restaurants, etc., it has a drawback that it is clearly inferior in appearance to transparent and clear ice and the overall product price is lowered.

[0005]

[The purpose of the device]

 According to the present invention, the ice-making protrusions cooled by the above-mentioned evaporation pipe are immersed in ice-making water stored in a water tray to form ice-lumps around the ice-making protrusions. SUMMARY OF THE INVENTION In view of the disadvantage of clouding, it has been proposed to solve this problem, and it is to provide a mechanism capable of effectively preventing clouding of ice blocks by constantly moving ice making water during ice making operation. With the goal.

[0006]

[Means for Solving the Problems]

 In order to overcome the above-mentioned problems and achieve the intended purpose, the present invention provides an evaporation pipe connected to a refrigeration system including a compressor, a condenser, and the like, and the evaporation pipe is provided on the upper surface and a large number on the lower surface. An ice making substrate in which the ice making portions of the ice making unit are suspended from each other at predetermined intervals, and a water tray in which the ice making unit is immersed in ice making water in an ice making chamber defined inside, which is tiltable and always arranged horizontally, When the ice-making water is frozen around the ice-making unit to form a desired ice block, in an ice-making machine configured with a tilting mechanism that tilts the water tray obliquely downward, in the ice-making chamber of the water tray, An oscillating plate that can oscillate freely with respect to the bottom surface of the ice making chamber is housed and arranged, and the oscillating means arranged outside the water tray is engaged with the oscillating plate to perform an ice making operation. The rocking plate is rocked inside the ice making chamber to move the ice making water in the ice making chamber. It is characterized in that it is configured to prevent clouding of ice blocks formed around the ice portion.

[0007]

【Example】

 Next, a white turbidity prevention mechanism of an ice making machine according to the present invention will be described below with reference to the accompanying drawings with reference to preferred embodiments.

[0008]

[Regarding the First Embodiment] FIGS. 4 and 5 are a cross-sectional view and a perspective view schematically showing the overall configuration of the ice making machine in which the cloudiness preventing mechanism according to the first embodiment is adopted. The inside of the casing 10 that constitutes the main body of the ice maker is a lower machine room 14 in which a refrigerating machine such as the compressor 16 and the condenser 18 is housed, and is located above it and surrounded by a heat insulating material. It is basically composed of an ice storage box 12 that can be opened and closed freely and an ice making unit 20 arranged above the ice storage box 12. As will be described later with reference to FIGS. 1 and 2, the ice making unit 20 includes a water tray 24 that stores ice making water at a predetermined level, and an ice making substrate 34 that has an ice making protrusion 36 that is immersed in the ice making water. When the water tray 24 is switched to the deicing operation, the water tray 24 is tilted at a predetermined angle to discharge the ice making water in the water tray 24 to the outside through the drainage receiving portion 28 and the drainage pipe 30, and at the same time, the ice blocks to the ice storage 12 Can be released to.

FIG. 2 shows the details of the ice making unit 20 in a vertical cross section. The water tray 24 has the shape shown in FIGS. 1 and 3, and an ice making chamber 32 defined inside the water tray 24. The ice making water can be stored at a predetermined level. That is, the ice-making chamber 32 is defined by the rectangular bottom surface 24a of the water tray 24 and the wall surfaces 24b, 24c, 24d, 24e that stand upright on all four sides, and are located outside the upright walls 24d, 24e facing each other in the lateral direction. Support pieces 50, 50 are attached respectively. As shown in FIG. 3, the support piece 50 provided on the upright wall 24d has a cam piece 50a that is bent and protrudes obliquely downward at a portion separated from the water tray 24, and the cam piece 50a has a long hole. A cam groove 54 is bored, and a cam follower 56 protruding from an eccentric position of a cam disk 58, which will be described later, slidably faces this. Further, a projecting piece 49 is formed so as to project from the bent portion of each supporting piece 50 that is out of the water tray 24, and the swivel support shafts 52 are respectively inserted into the through holes formed in the projecting piece 49. The swivel shaft 52 is fixed to the body side of the ice making machine, and the water tray 24 is rotated around the swivel shaft 52 under the cam action of the actuator motor 60 connected to the cam disk 58. As shown in FIGS. 9 to 11, tilting downward and returning upward obliquely can be achieved.

As shown in FIGS. 2 and 3, the water tray 24 is provided with a water discharge path for discharging the ice making water in the ice making chamber 32 to the outside when the water tray 24 is tilted. That is, a drainage chute 38 extending obliquely downward is integrally formed on the lower surface of the water tray 24, and the drainage water is received near the lower open end of the drainage chute 38 and discharged to the outside. The drainage receiver 28 is disposed above the inside of the ice storage 12 (see FIG. 4). The vertical wall surface in the longitudinal direction of the water tray 24 (the side opposite to the side on which the swivel support shaft 52 is disposed) is constituted by a weir plate 42, as shown in FIG. The water tray inner wall 24c is integrally formed with the water tray 24 so as to surround it from above. The lower open end of the inner wall 24c of the water tray is located above the bottom surface of the water tray 24 with a slight gap therebetween. Therefore, as shown in FIG. 2, the ice making water reaches the dam plate 42 via the lower open end of the water tray inner wall 24c, and overflows from the upper end surface of the dam plate 42 to be discharged to the drain chute 38. It is possible. In other words, the blocking plate 42 holds the ice making water stored in the ice making chamber 32 at a predetermined level. When the operation is switched to the deicing operation described below, the water tray 24 tilts obliquely downward to discharge the ice making water through the drain chute 38, as shown in FIG. Then, at the position where the water tray 24 stops tilting, a part of the ice making water remains as it is due to the dam plate 42 (see FIG. 10), which is supplied from the ice making water supply pipe 68 for the next ice making operation. When mixed with water, the temperature of ice-making water as a whole can be lowered.

An ice making substrate 34 is horizontally arranged and fixed above the inside of the casing 10, and an evaporation pipe 22 led from a refrigeration system housed in the machine room 14 meanders on the upper surface of the ice making substrate 34. It is arranged. Further, a large number of ice-making projections 36 are provided on the lower surface of the ice-making base plate 34 so as to hang down at required intervals, and during the ice-making operation, the ice-making projections 36 are immersed in the ice-making water stored in the water tray 24. ing. As the refrigeration system is operated, heat is exchanged with the refrigerant in the evaporation pipe 22, and the ice making protrusions 36 are cooled and maintained at 0 ° C. or less. As a result, as shown in FIG. Ice blocks 70 will be formed.

An L-shaped swing plate 44 is swingably arranged inside the ice making chamber 32 of the water tray 24, and is vertically driven by the rotation of a swing motor 64. .. That is, as shown in FIG. 3 in particular, the rocking plate 44 made of a horizontal plate having the vertical rising portions 45 has a large number of through holes 46 formed on the surface thereof at required intervals. The peripheral dimension of the rocking plate 44 is set to be slightly smaller than the inner dimension of the bottom surface 24a of the ice making chamber 32, and the rocking support shaft 48 is inserted into the through hole formed in the upper end of the rising portion 45. It Both ends of the swing support shaft 48 are adapted to be inserted into through holes 53a of projecting pieces 53 projecting from supporting pieces 50 provided on both outer side walls of the water tray 24, respectively. Then, in a state in which the swing plate 44 is pivotally supported by the swing support shaft 48, the swing plate 44 is placed in close contact with the bottom surface of the ice making chamber 32, as shown in FIG.

As shown in FIG. 3, an upright piece 59 is integrally formed at an edge portion in the lateral direction of the swing plate 44, and an engagement pin 61 extends horizontally from the upright piece 59. The swinging motor 64 shown in FIGS. 1 and 3 is fixed to the inside of the body of the ice making machine, and the engaging piece 62 that is disposed on the rotary shaft of the motor 64 and projects in the radial direction is the swinging motor. The engagement pin 61 of the plate 44 can be engaged and disengaged from below. Therefore, when the swinging motor 64 is rotated counterclockwise, the engaging piece 62 rotates in a state of being engaged with the engaging pin 61 as shown in FIG. 6, and the swinging plate 44 is moved to the bottom surface of the ice making chamber 32. Then, when the engaging piece 62 is disengaged from the engaging pin 61 as shown in FIG. 7, the rocking plate 44 falls to the bottom surface of the ice making chamber 32 by its own weight. That is, if the swinging motor 64 is rotated during the ice making operation, the swinging plate 44 repeatedly swings up and down within the ice making chamber 32 about the swinging support shaft 48, thereby constantly producing ice making water. Can be moved. Since the swing plate 44 has a through hole 46, the ice making water flows up and down through the through hole 46, and a more vigorous movement is obtained. However, this through hole 46 is not essential and may be omitted if necessary.

The rocking plate 44 tilts integrally with the tilting of the water tray 24 during a deicing operation to be described later, but the tilting locus of the engaging pin 61 provided on the rocking plate 44 is The stopper 63 extending horizontally from the housing 10 is faced. By engaging the engaging pin 61 with the stopper 63 while the rocking plate 44 tilts together with the water tray 24, the rocking plate 44 is separated from the water tray 24, and its tilting posture. Is kept constant.

[0015]

[Operation of First Embodiment] Next, the operation of the white turbidity prevention mechanism according to the first embodiment configured as described above will be described. Prior to the ice making operation, the water tray 24 is always held in a horizontal position as shown in FIG. 2, and the ice making water is supplied to the ice making chamber 32 in the water tray 24 through the ice making water supply pipe 68. ing. The supply and stop of the ice-making water from the ice-making water supply pipe 68 are performed, for example, by switching the switches according to the cam action of the cam disk 58 and the micro switch 66 shown in FIG. Even if it is supplied a little more, the ice making water in the ice making chamber 32 overflows the dam plate 42 as described above and is discharged to the outside through the drain chute 38 and the drain receiver 28. ..

The refrigerant is supplied to the evaporation pipe 22 by switching a valve element (not shown) provided in the refrigerant circulation pipe of the refrigeration system, and the heat exchange action of the refrigerant cools the ice-making protrusions 36 protruding from the ice-making substrate 34. Is started. Since the ice-making protrusions 36 are immersed in ice-making water, ice formation starts around the protrusions 36 and gradually grows to form an inverted dome-shaped ice mass 70 as shown in FIG. Then, during the ice making operation, by rotating the swinging motor 64, the engaging piece 62 of the motor 64 engages with the engaging pin 61 provided on the upright piece 59 to move the swinging plate 44. Lift up as shown in FIG. When the engagement piece 62 is disengaged from the engagement pin 61, the swing plate 44 falls by its own weight and comes into contact with the bottom surface 24a of the ice making chamber 32 as shown in FIG. In this way, the rocking plate 44 repeats rocking in the ice making water in the ice making chamber 32 during the ice making operation, thereby constantly moving the ice making water. Moreover, since the through hole 46 is formed in the rocking plate 44, the ice making water passes through the through hole 46 as the rocking plate 44 rocks, and the ice making water moves with the jet phenomenon. To be more active. In this way, by keeping the ice making water in a dynamic state at all times, clouding of the ice blocks 70 formed around the ice making protrusions 36 is prevented, and a transparent and clear ice block 70 is obtained.

As shown in FIG. 8, when a complete ice block 70 is formed in an inverted dome shape on the ice-making protrusion 36, the completion of ice-making is detected by an appropriate means to end the ice-making operation. Then, the driving of the actuator motor 60 is started, the cam disk 58 rotates, and the cam follower 56, which is biased against this, slides on the cam groove 54 formed in the cam piece 50a, whereby the cam action is performed. The water tray 24 begins to tilt downward. Due to this tilting, the ice making water in the ice making chamber 32 is discharged to the drainage chute 38 via the water tray inner wall 24c and the dam plate 42, and is discharged from the drainage chute 38 to the drainage receiving portion 28. Then, as shown in FIG. 10, when the water tray 24 reaches the required tilt angle, the tilt is stopped. At this time, a part of the ice making water blocked by the dam plate 42 remains inside the ice making chamber 32. The remaining ice making water has been sufficiently cooled in the previous ice making operation, so it can be mixed with new ice making water supplied for the next ice making operation to lower the temperature of the entire ice making water. it can.

When the water tray 24 is tilted in this way, the ice blocks 70 formed around the ice-making protrusions 36 are exposed while being attached to the protrusions 36. Further, the rocking plate 44 tilts integrally with the tilting of the water tray 24, so that the engaging pin 61 of the rocking plate 44 is disengaged from the engaging piece 62 of the rocking motor 64. Then, as shown in FIG. 10, since the engaging pin 61 of the rocking plate 44 is locked to the stopper 63 in the process of the tilting stop of the water tray 24, the ice making chamber 32 in the water tray 24 after which the tilt is stopped is stopped. The oscillating plate 44 is located diagonally above the bottom surface 24a. The rocking plate 44 functions as a sliding chute for guiding the ice block 70 to the ice storage 12 when the ice block 70 drops.

In the state shown in FIG. 10, the valve element in the refrigeration system is switched, and hot gas is supplied to the evaporation pipe 22 instead of the refrigerant, whereby the ice-making projection 36 is rapidly transferred through the ice-making substrate 34. To be heated. Therefore, the connection between the ice making protrusion 36 and the ice block 70 is released, and the ice block 70 falls due to its own weight. Then, the upper surface of the oscillating plate 44 held in a required inclined posture by the stopper 63 slides down and is guided and discharged into the ice storage 12 located obliquely below.

Upon completion of this deicing, the combination of the cam disk 58 and the micro switch 66, or an appropriate means (not shown) detects the end of deicing and rotates the actuator motor 60. As a result, under the action of the cam disc 58, the cam follower 56, and the cam groove 54, the cam piece 50a rotates counterclockwise about the pivot shaft 52, which causes the water tray 24 to rotate counterclockwise. Control to stop after returning to the horizontal posture. At this time, as described above, the ice making water used in the previous ice making operation remains in the ice making chamber 32, which is in a sufficiently cooled state. When ice-making water is replenished through the ice-making water supply pipe 68, the temperature of the obtained ice-making water as a whole is rapidly lowered, and the next ice-making operation can be immediately started.

[0021]

[Regarding Second Embodiment] FIG. 12 is a perspective view showing a schematic configuration of a white turbidity prevention mechanism according to a second embodiment. A water tray 72 in which a swing plate 71 is housed and arranged has a rectangular bottom surface 72a. And an upright wall surface 72b, 72c, 72d, 72e on four sides, which defines an ice making chamber 73 in which a required amount of ice making water is stored. Further, a plurality of shaft support portions 74 are aligned and integrally formed along the longitudinal direction on the outer side of the one upright wall 72e along the longitudinal direction, and the water tray 72 is provided with the shaft support portions 74 so that the water tray 72 of the ice storage box 12 is It is rotatably supported upward. An actuator motor AM 1 is connected to the shaft support portion 74 via a connecting mechanism 75, and the water tray 72 is tilted downward and returned upward by rotation of the motor AM.

Inside the ice making chamber 73 of the water tray 72, as shown in FIG. 12, except for the side of the rectangular bottom plate 71a facing the upright wall 72d on the tilting end side of the water tray 72. An oscillating plate 71 having vertical rising portions 71b, 71c, 71d respectively formed on its sides is oscillatably arranged, and is vertically oscillated by the rotation of an oscillating motor RM. The peripheral dimension of the swing plate 71 is set to be slightly smaller than the internal dimension of the bottom surface 72a of the ice making chamber 73, and the protrusions 76, 76 formed on both sides in the upper longitudinal direction of the rising portion 71b are formed on the water tray 72. It is rotatably supported by pins 77, 77. Then, with the rocking plate 71 pivotally supported on the water tray 72, the rocking plate 71 is placed in close contact with the bottom surface of the ice making chamber 73 (see FIG. 15).

As shown in FIG. 14, a large number of through holes 78 having a circular shape or a quadrangular shape are bored at required intervals in the bottom plate 71a of the swing plate 71. These through holes 78 are set so as to face between the adjacent ice making projections 36, 36, and the movement of the ice making water at the position facing the ice making projections 36, 36 when the swing plate 71 is swung. As an active matter, it effectively prevents the ice block 70 from becoming cloudy (see FIG. 17). In the rising portion 71b along the longitudinal direction, through holes 78 are formed at predetermined intervals along the longitudinal direction at positions close to the water surface of the ice making water in the water tray, and the through holes 78 are also formed in the ice making water. Function to activate the movement of. Further, the rising portions 71c, 71d provided at the positions along the lateral direction (both edge portions along the swing direction) are close to the upright walls 72b, 72c of the water tray 72 when the swing plate 71 swings. It functions to actively move ice making water.

Further, an upright piece 79 extending upward is formed on the rising portion 71b of the rocking plate 71, and the rocking plate 71 is tilted together with the water tray 72 during deicing operation, and the upright piece 79 is formed. By engaging with the ice making substrate 34, the rocking plate 71 is separated from the water tray 72, and its tilting posture is kept constant.

Here, in order to efficiently move the ice making water by the rocking plate 71, the circumference size of the rocking plate 71 is slightly smaller than the internal size of the bottom surface 72 a of the ice making chamber 73, and the rocking plate 71 is It is set to be swingable in the ice making room. Therefore, when the water tray 72 further tilts with respect to the swing plate 71 stopped by the upright piece 79 engaging with the ice making substrate 34 during the deicing operation, the rising portion of the swing plate 71 is formed. The gap defined between the rocking edge portion which is not formed and the upright wall 72d is narrow. In this case, for example, if the swinging edge of the bottom plate 71a is linear, the gap between the upright wall 72d and the edge is narrow, so that the ice-making water remaining in the water tray 72 is on the surface. Due to the tension, there is a risk that it will rise above the bottom plate 71a and flow out from the upper end of the upright wall 72d to the outside. Therefore, in the swing plate 71 of the second embodiment, as shown in FIG. 14, a plurality of V-shaped notches 80 are formed at predetermined intervals at the swing edge portion of the bottom plate 71a along the longitudinal direction thereof. is doing. That is, when the water tray 72 tilts with respect to the rocking plate 71, the gap between the rocking edge of the bottom plate 71a and the upright wall 72d is set to be large at the notch 80, The ice making water that faces between the swinging edge portion and the upright wall 72d can be prevented from falling into the water tray from each notch 80 and preventing the ice making water from flowing out from the upper end of the upright wall 72d.

As shown in FIG. 14, an inverted L-shaped engaging piece 81 is integrally formed on a rising portion 71c of a rocking plate 71, and an upper horizontal portion 81a of the engaging plate 81 extends outwardly beyond an upright wall 72b of an ice making chamber 73. Has been extended to. A swinging motor RM is provided in the ice making machine main body corresponding to the placement position of the upper horizontal portion 81a, and a swinging member 82 is provided on the rotary shaft of the motor RM. As shown in FIG. 13, the swing member 82 includes a disc-shaped main body 82a and a swing projection 82b eccentrically provided on a surface of the main body 82a that faces the upper horizontal portion 81a. The swinging protrusion 82b can be engaged with and disengaged from the upper horizontal portion 81a from below. Therefore, if the rocking motor RM is rotated during the ice making operation, the rocking plate 71 repeatedly swings up and down within the ice making chamber 73 about the pins 77, 77, thereby constantly moving the ice making water. (See FIGS. 15 to 17). The through hole 78 of the rocking plate 71 and the rising portions 71c, 71d give the ice making water in the ice making chamber 73 a vigorous movement throughout.

[0027]

[Operation of Second Embodiment] Next, the operation of the white turbidity prevention mechanism according to the second embodiment will be described. When the rocking motor RM is rotated during the ice making operation, the rocking protrusion 82b of the rocking member 82 rotated by the motor RM engages with the engaging piece 81 (upper horizontal portion 81a) provided on the rising portion 71c. Then, the rocking plate 71 is lifted upward as shown in FIG. When the swing protrusion 82b is disengaged from the engaging piece 81, the swing plate 71 falls by its own weight and comes into contact with the bottom surface 72a of the ice making chamber 73, as shown in FIG. In this way, the rocking plate 71 repeats rocking in the ice making water in the ice making chamber 73 during the ice making operation, thereby constantly moving the ice making water. Moreover, since the through hole 78 is formed in the rocking plate 71, the ice making water passes through the through hole 78 as the rocking plate 71 rocks, and the ice making water moves with the jet phenomenon. To be more active. Moreover, since the through hole 78 formed in the bottom plate 71a is located between the adjacent ice making projections 36, 36, the movement of the ice making water becomes active around each ice making projection 36. In this way, by keeping the ice making water in a dynamic state at all times, the cloud of ice 70 formed on the ice making projections 36 is prevented, and a transparent and clear ice block 70 is obtained. In addition, the rising portions 71c and 71d provided upright on the rocking plate 71 can activate the movement of the ice making water near the corresponding upright walls 72b and 72c of the water tray 72 as shown in FIG. It is possible to form transparent and clear ice blocks 70 on all the ice-making protrusions 36 provided on the ice-making substrate 34.

Further, in the process in which the ice making operation is finished and the ice making operation is switched to, and the water tray 72 is tilted, the rocking plate 71 is tilted after the upright piece 79 is engaged with the ice making substrate 34. The rocking plate 71 is located diagonally above the bottom surface 72a of the water tray 72 that has stopped. In this case, by providing the notch 80 at the swinging edge of the swinging plate 71, it is possible to effectively allow the ice making water remaining in the water tray 72 to flow out from the upper end of the upright wall 72d to the outside. Can be prevented.

In the illustrated embodiment, a structure is adopted in which a large number of inversely tapered ice-making projections are suspended from the ice-making substrate at predetermined intervals. However, as the ice-making protrusions, various members such as a round rod-shaped member and a pin-shaped member can be suitably used as long as they are core members to be cooled that function as so-called ice-making parts.

[0030]

[Effect of the device]

 As described above, according to the white turbidity prevention mechanism of the ice maker according to the present invention, the ice making protrusions cooled by the evaporation tube are immersed in the ice making water stored in the water tray, and ice blocks are formed around the ice making protrusions. In the ice making machine configured to be formed, the ice making water is positively and constantly moved by the rocking action of the rocking plate during the ice making operation. Therefore, the obtained ice blocks do not become cloudy, and there is an advantage that transparent and clear ice blocks with high commercial value are produced. Also, the rocking plate not only functions to move the ice making water during the ice making operation, but at the time of the deicing operation, it can be tilted and stopped by an angle smaller than the tilt angle of the water tray. It also has the function of receiving an ice block that is released from the ice making protrusion and falls by its own weight by the inclined surface of the rocking plate and smoothly guiding it to the ice storage chamber.

Further, the through holes formed in the bottom plate of the rocking plate are positioned so as to face the respective ice making projections provided on the ice making substrate, and rising portions are formed at both edge portions along the rocking direction of the bottom plate. By doing so, the entire ice making water in the ice making room can be actively moved, and the production of cloudy ice can be effectively prevented. Further, since a notch is formed in the swing edge of the swing plate, when the water tray tilts with respect to the swing plate, the ice-making water remaining in the water tray flows out to the outside by the swing plate. It is possible to prevent the situation.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an ice making unit in which a white turbidity prevention mechanism according to a first embodiment of the present invention is used, in an exploded state.

FIG. 2 is a cross-sectional view of an essential part of the ice making unit shown in FIG.

FIG. 3 is a perspective view showing a state in which a water tray and an oscillating plate disposed inside the ice making chamber and an ice making water discharge path are partially cut away.

FIG. 4 is a schematic vertical cross-sectional view of an ice making machine in which the white turbidity prevention mechanism according to the first embodiment is adopted.

5 is a partially cutaway perspective view of the ice making machine shown in FIG. 4. FIG.

FIG. 6 is a cross-sectional view of essential parts showing a state where the rocking plate is raised during ice making in the ice making unit shown in FIG. 2.

FIG. 7 is a cross-sectional view of essential parts showing a state in which the swing plate is descending during ice making in the ice making unit shown in FIG.

FIG. 8 is a cross-sectional view showing a state where ice making is completed in the ice making unit, and also shows a positional relationship between the cam follower and the cam groove.

FIG. 9: The water tray starts tilting in the ice making unit,
It is a longitudinal cross-sectional view showing a state in which a portion of residual water used for ice making is discharged.

FIG. 10 is a vertical cross-sectional view showing a state where deicing is performed in a state where the water tray of the ice making unit stops tilting and the rocking plate is tilted and held slightly above the water tray.

FIG. 11 is a vertical cross-sectional view showing a state in which the water tray of the ice making unit is returned to its original state and stopped, and replenishment of new ice making water to the remaining ice making water is started.

FIG. 12 is a schematic perspective view showing an ice making unit in which a white turbidity prevention mechanism according to a second embodiment is adopted, in a partially disassembled state.

FIG. 13 is an exploded perspective view of essential parts of a white turbidity prevention mechanism according to a second embodiment.

FIG. 14 is a schematic perspective view of an oscillating plate according to a second embodiment.

FIG. 15 is a cross-sectional view of essential parts showing a state immediately before the swing projection is engaged with the engagement piece of the swing plate in the ice making unit shown in FIG. 12.

16 is a cross-sectional view of essential parts showing a state in which the rocking projection is engaged with the engaging piece of the rocking plate and the rocking plate is raised in the ice making unit shown in FIG. 12.

FIG. 17 is a cross-sectional view of essential parts showing a state where the swing projection is separated from the engaging piece of the swing plate and the swing plate is lowered in the ice making unit shown in FIG. 12.

[Explanation of symbols]

16 ... Compressor, 18 ... Condenser, 22 ... Evaporation tube, 24, 7
2 ... Water tray 32, 73 ... Ice making chamber, 34 ... Ice making substrate, 36 ... Ice making protrusion 44, 71 ... Oscillating plate, 46 ... Through hole, 48 ... Oscillating spindle, 5
0a ... Lever piece 56 ... Cam follower, 60, AM ... Actuator motor 61 ... Engaging pin, 62 ... Engaging piece, 64, RM ... Swing motor, 70 ... Ice block 75 ... Connecting mechanism, 78 ... Through hole, 80 ... Cut Missing, 81a ...
Upper horizontal part 82 ... rocking member, 82a ... rocking protrusion

Claims (7)

[Scope of utility model registration request] 1. An evaporation pipe (22) connected to a refrigeration system including a compressor (16), a condenser (18), etc., and this evaporation pipe (22) is arranged on the upper surface and a large number of pieces are formed on the lower surface. The ice-making base plate (34) having the ice-making unit (36) protruding from the ice-making unit at a predetermined interval is tilted freely and always arranged horizontally, and the ice-making water in the ice-making chamber (32, 73) defined inside the ice-making unit When the part (36) is immersed in a water tray (24, 72) and the ice making water is frozen around the ice making part (36) to form a required ice mass (70), the water dish (24, 72) in an ice machine composed of a tilting mechanism (60, 56, 50a, 75, AM) for tilting downwardly, in the ice making chamber (32, 73) of the water tray (24, 72), A swing plate that can swing freely to and from the bottom of the ice making chamber (32, 73)
(44,71) are stored and arranged, and swinging means (64,62,82, R arranged outside the water tray (24,72).
M) and the rocking plate (44, 71) are engaged with each other to rock the rocking plate (44, 71) inside the ice making chamber (32, 73) during the ice making operation. The ice-making water in (32,73) is moved, whereby the ice blocks (70) formed around the ice-making unit (36).
White turbidity prevention mechanism for ice making machines, characterized in that it is configured to prevent white turbidity. 2. The white turbidity of an ice making machine according to claim 1, wherein the rocking plate (44) is provided with through holes (46) at a required interval for allowing the ice making water to flow during the rocking. Prevention mechanism. 3. The swinging means comprises a swinging motor (64) provided on the body side of an ice making machine, and an engagement piece (62) provided on a rotation shaft of the motor (64) and protruding in a radial direction. And the rocking plate (44)
The engaging piece (62) which is provided at the open end of the engaging pin (61) protruding horizontally and is rotated by the swinging motor (64).
2. The reciprocal engagement and disengagement with the engagement pin (61) is repeated to impart a swinging motion about the swinging support shaft (48) to the swinging plate (44). Whitening prevention mechanism of ice making machine. 4. The oscillating plate (71) is provided at one end edge portion of a bottom plate (71a) having a peripheral size that can be stored in the water tray.
The rising portion (71b) that pivotally supports the water tray (72) in a swingable manner.
A plurality of through holes (78) are formed in the bottom plate (71a) and the rising portion (71b), and the through hole (78) formed in the bottom plate (71a) is immersed in ice making water. 2. The white turbidity prevention mechanism for an ice making machine according to claim 1, wherein the mechanism is positioned so as to face each of the ice making projections (36). 5. A rising portion (71c, 71c) having a predetermined height is provided at both end edges of the swing plate (71) along the swing direction of the bottom plate (71a).
The white turbidity prevention mechanism for an ice maker according to claim 4, wherein d) is formed. 6. The ice making machine according to claim 4, wherein a plurality of notches (80) are formed at required intervals at an edge of the bottom plate (71a) of the rocking plate (71) on the rocking end side. White turbidity prevention mechanism. 7. The swinging means comprises a swinging motor (RM) provided on the body side of an ice making machine, a swinging member (82) provided on a rotating shaft of the motor (RM), and the swinging means (82). From a swinging protrusion (82b) eccentrically provided on one side surface of the member (82) and a horizontal portion (81a) provided at the open end of the swinging plate (71) and extending horizontally. The rocking protrusion (8) which is rotated by the rocking motor (RM).
The whitening prevention mechanism for an ice maker according to claim 4, wherein 2b) repeatedly engages and disengages with the horizontal portion (81a) to impart a swinging motion to the swinging plate (71).