Round ice maker with higher transparency by loop water supply

Abstract

To provide a round ice maker with higher transparency by a loop water supply in which a water measurement box is omitted, a mechanism is simplified, a cost is reduced, and a transparency of the round ice is improved.SOLUTION: A round ice maker for improving a transparency by a loop water supply includes an ice maker housing 1 and a water tank 2. The water tank is provided below the ice maker housing. The ice maker housing includes an evaporator 41, an ice making mold 31, an ice mold sliding seat 3, a regular mold seat 4, and a mold driving mechanism 5. The regular mold seat is fixed on a front side of inside of the ice maker housing. A form mold sliding seat is attached to a rear side in the ice maker housing in a slidable manner. The mold driving mechanism is transmissively connected to the form mold sliding seat. The evaporator is fixed to the regular mold seat and is directed to one side of the ice mold sliding seat. The ice making mold is fixed to the ice mold sliding seat and is directed to one side of the evaporator. The evaporator and the ice making mold form at least one semispherical mold chamber 44. The evaporator and the ice making mold form a spherical mold chamber corresponding to the semispherical mold chamber.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to the technical field of ice making machines, and more particularly to a round ice making machine that improves clarity by using a loop water injection. [Background technology]

[0002] Round ice is a spherical form of ice with a large surface area, creating a visual impact. Its slow melting rate makes it popular for use in beverages like whiskey, cocktails, and soft drinks. However, due to its large volume, round ice often produces bubbles, impurities, and cracks during production, negatively affecting the ice's clarity. Conventional round ice makers use a method of pouring a fixed amount of water multiple times, or small amounts of water multiple times, rather than filling the mold with water all at once. This allows the ice to solidify layer by layer, reducing bubbles, impurities, and cracks. However, this conventional method cannot completely prevent the formation of bubbles, impurities, and cracks, resulting in poor ice clarity. Furthermore, to ensure a fixed amount of water is poured, a separate water measuring box must be installed above the mold. Water from the water storage tank must be pumped to the measuring box, and then a solenoid valve must be used to pour the fixed amount into the mold. This results in a complex structure, high costs, and room for improvement. Summary of the Invention [Problem to be solved by the invention]

[0003] Therefore, an object of the present invention is to provide a round ice maker that omits a water measuring box, simplifies the mechanism, reduces costs, and improves the transparency of round ice by using loop water injection. [Means for solving the problem]

[0004] In order to solve the above problems, according to a first aspect of the present invention, there is provided a round ice maker that improves the clarity of ice by loop water injection, and that includes an ice making casing (1) and a water tank (2), wherein the water tank (2) is disposed below the ice making casing (1), and within the ice making casing (1) are disposed an evaporator (41), an ice making mold (31), an ice making mold slide seat (3), a fixed mold seat (4), and a mold drive mechanism (5), the fixed mold seat (4) is fixed to the front side of the ice making casing (1), the forming mold slide seat is slidably attached to the rear side of the ice making casing (1), and the mold drive mechanism (5) drives the ice making casing (1) to rotate. The evaporator (41) is fixed to the fixed mold seat (4) and faces one side of the ice mold seat (3), the ice mold (31) is fixed to the ice mold seat (3) and faces one side of the evaporator (41), the evaporator (41) and the ice mold (31) form at least one hemispherical mold chamber (44), the evaporator (41) and the ice mold (31) form a spherical mold chamber (43) corresponding to the hemispherical mold chamber (44), and the ice mold (31) protrudes from the ice mold seat (3) and faces forward. A mold release gap (42) is formed between the ice making mold slide seat (3) and the fixed mold seat (4), and at least one water inlet (32) opening upward is formed in the upper part of the ice making mold (31), and the water inlet (32) communicates with the spherical mold chamber (43) and is located within the mold release gap (42), and a loop water injection mechanism and a mold release water spray mechanism are disposed between the ice making casing (1) and the water tank (2), and the loop water injection mechanism includes a loop water injection pump (61) and a loop water injection pipe (62), and at least one water sprayer is provided at the upper end of the loop water injection pipe (62). The mold release water spray mechanism includes a water spray pump (71), a water spray pipe (77), a water spray pipe (72), and an upper spray assembly (73) that forms a water curtain. The upper spray assembly (73) includes:The round ice maker is provided with a water spray pump (71) disposed above the demolding gap (42) and inserted laterally into the demolding gap (42), one end of the water spray pipe (77) and the water spray pipeline (72) connected to the upper spray assembly (73) and the other end connected to the water tank (2), and the water spray pump (71) is disposed on the water spray pipeline, thereby improving the clarity of the round ice maker by loop water injection.

[0005] It is preferable that the outside of the ice-making mold (31) is covered with an insulating housing (33), the insulating housing (33) includes a front housing (331) and a rear housing (333), the front housing (331) has at least one insulating ring (332), the rear housing (333) has at least one hemispherical insulating tank (334), and the ice-making mold (31) is sandwiched between the front housing (331) and the rear housing (333).

[0006] The outside of the ice-making mold (31) is preferably covered with a layer of heat-insulating paste, and the layer of heat-insulating paste is preferably applied to the outer surface of the ice-making mold (31).

[0007] A water spray mounting tank (11) opening downward is formed on the upper wall of the ice making casing (1), the upper spray assembly (73) is fitted into the water spray mounting tank (11), the water spray mounting tank (11) forms an upper spray tank (12) opening downward along the horizontal direction, and a lower spray tank (74) opening upward along the horizontal direction is formed on the upper part of the upper spray assembly (73), and the upper spray tank (12) and the lower spray tank (74) are engaged with each other to form a water spray. It is preferable that a water spray channel is formed, the loop water injection pipe (62) and the water spray channel are connected, the water spray channel is inserted laterally into the demolding gap (42), downwardly protruding upper sealing ridges (13) are provided on both the front and rear sides of the upper spray tank (12), and upwardly opening lower sealing recessed grooves (75) are formed on both the front and rear sides of the lower spray tank (74), and the two upper sealing ridges (13) are inserted into the two lower sealing recessed grooves (75), respectively.

[0008] The lower portion of the upper spray assembly (73) is preferably formed with a plurality of water spray holes (76) spaced apart along the lateral direction, each of which is preferably connected to one of the water spray channels.

[0009] It is preferable that the lower part of the upper spray assembly (73) forms a long water spray port along the horizontal direction, connects the long water spray port to the water spray channel, and inserts the long water spray port laterally into the demolding gap (42).

[0010] It is preferable that the mold release water spray mechanism has a side water spray member, the side water spray member including the water spray pipe (77), the water spray pipe (77) is fixed laterally within the ice mold slide seat (3) and is positioned obliquely above the ice-making mold (31), the water spray pipe (77) has one end sealed and the other end connected to the water spray pipe (72), the water spray pipe (77) is directed to one side of the ice-making mold (31), and a plurality of side water spray holes (78) are formed at intervals in the horizontal direction.

[0011] A water sump (34) is formed below the ice mold slide (3), and the water sump (34) is located below the mold release gap (42), and it is preferable that water outlets (35) are formed on both the left and right sides of the water sump (34).

[0012] A water return port (14) and an ice drop port (15) are formed at the bottom of the ice making casing (1), the water return port (14) is located behind the ice drop port (15), an upwardly protruding water stop ring (16) is installed along the outside of the ice drop port (15), water return channels (17) are formed between the water stop ring (16) and both left and right side walls inside the ice making casing (1), and it is preferable that the two water introduction ports (35) are located above the two water return channels (17), respectively.

[0013] It is preferable that the lower wall inside the ice making casing (1) is inclined downward and forward from front to rear, and the vertical height of the water return port (14) is lower than the vertical height of the ice drop port (15). [Effects of the Invention]

[0014] The round ice maker of the present invention, which increases transparency by injecting water through a loop, eliminates the need for a water measuring box, simplifies the mechanism, reduces costs, and increases the transparency of the round ice. [Brief explanation of the drawings]

[0015] [Figure 1] This is a cross-sectional perspective view showing the internal structure of a round ice maker that increases transparency by loop water injection in one embodiment of the present invention. [Figure 2] FIG. 1 is an exploded perspective view showing a round ice maker that uses loop water injection to increase transparency according to one embodiment of the present invention. [Figure 3] 1 is a cross-sectional view showing a round ice maker that improves transparency by loop water injection according to one embodiment of the present invention. [Figure 4] FIG. 4 is an enlarged view of part A in FIG. 3. [Figure 5] FIG. 1 is an explanatory diagram of a round ice maker that uses loop water injection to increase transparency, according to one embodiment of the present invention, making ice. [Figure 6] This is an explanatory diagram of the state in which a round ice maker that increases transparency by loop water injection according to one embodiment of the present invention is releasing the ice. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings, although the present invention is not limited thereto.

[0017] Please refer to Figures 1 to 6. As shown in Figures 1 to 6, a round ice maker that uses loop water injection to increase clarity according to one embodiment of the present invention includes an ice making casing 1 and a water tank 2. The water tank 2 is disposed below the ice making casing 1. Inside the ice making casing 1, an evaporator 41, an ice making mold 31, an ice making mold slide 3, a fixed mold seat 4, and a mold drive mechanism 5 are disposed. The fixed mold seat 4 is fixed to the front side of the ice making casing 1. The mold mating seat is slidably attached to the rear side of the ice making casing 1. The mold drive mechanism 5 is power-connected to the mold mating seat. The evaporator 41 is fixed to the fixed mold seat 4 and faces one side of the ice making mold slide 3. The ice making mold 31 is fixed to the ice making mold slide 3 and faces one side of the evaporator 41. The evaporator 41 and the ice making mold 31 form at least one hemispherical mold chamber 44. The evaporator 41 and ice-making mold 31 form a spherical mold chamber 43 corresponding to the hemispherical mold chamber 44. The ice-making mold 31 protrudes from the ice-making mold slide 3. A mold release gap 42 is formed between the ice-making mold slide 3 and the mold seat 4. At least one water inlet 32 ​​that opens upward is formed at the top of the ice-making mold 31. The water inlet 32 ​​communicates with the spherical mold chamber 43 and is located within the mold release gap 42. A loop water injection mechanism and a mold release water spray mechanism are disposed between the ice-making casing 1 and the water tank 2. The loop water injection mechanism includes a loop water injection pump 61 and a loop water injection pipe 62. At least one water spray nozzle 63 is formed at the upper end of the loop water injection pipe 62. The water spray nozzle 63 is located above the water inlet 32. A reflux gap 64 is formed between the water spray nozzle 63 and the water inlet 32. The lower end of the loop water injection pipe 62 is connected to the water tank 2. The loop water injection pump 61 is disposed on the loop water injection pipe 62. The demolding water spray mechanism includes a water spray pump 71, a water spray pipe 77, a water spray pipe 72, and an upper spray assembly 73 that forms a water curtain. The upper spray assembly 73 is disposed above the demolding gap 42 and is inserted laterally into the demolding gap 42. One end of the water spray pipe 77 and the water spray pipe 72 are connected to the upper spray assembly 73, and the other end is connected to the water tank 2. The water spray pump 71 is disposed on the water spray pipe.

[0018] Conventional round ice makers first pump water into a measuring box, then inject a fixed amount of water from the measuring box into spherical mold chamber 43 multiple times, freezing each layer of water in spherical mold chamber 43 to form round ice. However, the round ice obtained using this method contains a large number of air bubbles and cracks and has low transparency. In contrast, the present invention uses a loop water injection pump 61 to continuously feed water from water tank 2 into spherical mold chamber 43 through loop water injection pipe 62. After spherical mold chamber 43 is filled with water, the water overflows from return gap 64 and returns to water tank 2, maintaining the water in spherical mold chamber 43 in a fluid state, expelling air bubbles and impurities, reducing cracks, and improving the transparency of the round ice. Since there is no need for a measuring box, the mechanism is simplified and can be manufactured at low cost. During demolding, the evaporator 41 is heated to demold the ice cubes located on one side of the evaporator 41, and the water in the water tank 2 is sent by the water spray pump 71 to the upper spray assembly 73 via the water spray line 72. The upper spray assembly 73 forms a water curtain that is sprayed onto the top of the ice-making mold 31. When the ice melts and flows back, it forms ice blocks, thereby improving the success rate and efficiency of demolding.

[0019] Specifically, the outside of ice-making mold 31 is covered with insulating housing 33. Insulating housing 33 includes front housing 331 and rear housing 333. Front housing 331 has at least one insulating ring 332. Rear housing 333 has at least one hemispherical insulating tank 334. Ice-making mold 31 is sandwiched between front housing 331 and rear housing 333. As water in spherical mold chamber 43 overflows and circulates, it flows downward along the outer surface of ice-making mold 31. During the ice-making process, evaporator 41 conducts low temperature to ice-making mold 31, causing the outside of ice-making mold 31 to freeze and form frost, making it difficult to release the round ice. However, covering the outside of ice-making mold 31 with insulating housing 33 isolates ice-making mold 31 from the circulating water, preventing the circulating water from freezing and facilitating mold release, thereby increasing the speed of mold release.

[0020] Specifically, the outside of ice-making mold 31 is covered with a layer of insulating paste. The insulating paste layer is applied to the outer surface of ice-making mold 31. A food-grade insulating paste containing insulating material is applied to the outside of ice-making mold 31 to prevent frost from forming.

[0021] Specifically, a downwardly opening water spray mounting tank 11 is formed on the upper wall of the ice making casing 1. The upper spray assembly 73 is fitted into the water spray mounting tank 11, which forms an upper spray tank 12 that opens downward along the horizontal direction. A lower spray tank 74 that opens upward along the horizontal direction is formed above the upper spray assembly 73. The upper spray tank 12 and the lower spray tank 74 are mated with each other to form a water spray channel. The loop water injection pipe 62 is connected to the water spray channel, and the water spray channel is inserted into the mold release gap 42 along the horizontal direction. Downwardly protruding upper sealing ridges 13 are provided on the front and rear sides of the upper spray tank 12. Upwardly opening lower sealing recesses 75 are formed on the front and rear sides of the lower spray tank 74. The two upper sealing ridges 13 are inserted into the two lower sealing recesses 75, respectively. When the upper spray assembly 73 is removed, the upper spray tank 12 and lower spray tank 74 are exposed, facilitating future maintenance and cleaning, reducing blind spots for cleaning, simplifying the structure to reduce costs, and facilitating installation and production. The two upper sealing ridges 13 and two lower sealing grooves 75 improve the sealing of the water drainage channel to prevent water leakage, resulting in high reliability and stability.

[0022] Specifically, a plurality of water spray holes 76 are formed at intervals along the horizontal direction on the lower portion of the upper spray assembly 73. Each water spray hole 76 is connected to a water spray channel. Water flows out through the plurality of water spray holes 76, forming a plurality of columnar water curtains that spray water downward onto the top of the ice-making mold 31 during demolding, facilitating demolding.

[0023] Specifically, the lower part of the upper spray assembly 73 forms a long water spray port along the horizontal direction, which connects the long water spray port with the water spray channel and passes laterally through the demolding gap 42. When water flows out through the long water spray port, it forms a strip-shaped water curtain, which increases the coverage area of ​​the water curtain, reduces the blind spot of the spray, and increases the demolding speed.

[0024] Specifically, the mold release water spray mechanism further includes a side water spray member. The side water spray member includes a water spray pipe 77. The water spray pipe 77 is fixed laterally within the ice mold slide 3 and is positioned diagonally above the ice-making mold 31. One end of the water spray pipe 77 is sealed, and the other end is connected to the water spray conduit 72. The water spray pipe 77 faces one side of the ice-making mold 31, forming a plurality of side water spray holes 78 spaced apart laterally. The water spray pump 71 delivers water from the water tank 2 to the water spray pipe 77 via the water spray conduit 72. The water is sprayed onto the side of the ice-making mold 31 via the water spray pipe 77, allowing the round ice pieces located on one side of the ice-making mold 31 to be released from the ice-making mold 31. This results in a high success rate and efficiency in mold release.

[0025] Specifically, a water sump 34 is formed below the ice mold slide 3. The water sump 34 is located below the mold release gap 42, and water inlets 35 are formed on both the left and right sides of the water sump 34. When the water in the spherical mold chamber 43 flows back into the water tank 2, the water flows along the ice mold 31, through the mold release gap 42, and into the water sump 34. The water in the water sump 34 then flows through the two water inlets 35 to the left and right sides of the ice making casing 1, avoiding the ice drop outlet 15 and preventing water from splashing on the produced round ice, resulting in high stability and reliability.

[0026] Specifically, a water return port 14 and an ice drop port 15 are formed at the bottom of the ice making casing 1. The water return port 14 is located behind the ice drop port 15, and a water stop ring 16 protruding upward is installed along the outside of the ice drop port 15. A water return channel 17 is formed between the water stop ring 16 and each of the left and right side walls of the ice making casing 1. Two water inlets 35 are located above the two water return channels 17. After release, the round ice cubes fall from the ice drop port 15 onto the ice plate in the water tank 2, facilitating the production of continuous ice cubes. Water from the spherical forming chamber 43 flows through the water guide tank 34 and the two water return channels 17, which guide the water to the water return ports 14 and return it to the water tank 2. The water return ports 14 avoid contact with the ice plate located below the ice drop ports 15, preventing the water from contacting the produced round ice cubes during the return flow. Since the return water can be prevented from entering the ice drop port 15 via the water stop ring 16, the reliability and stability are high.

[0027] Specifically, the bottom wall inside ice-making casing 1 is inclined downward and forward from front to rear, and the vertical height of water return port 14 is lower than the vertical height of ice drop port 15. Because the bottom wall inside ice-making casing 1 has an inclination, the return water is guided to water return port 14, preventing the accumulation of water and the growth of bacteria.

[0028] The operating principle of the present invention will now be described. The mold drive mechanism 5 moves the ice mold slide seat 3 toward the fixed mold seat 4, closes the ice mold 31 and evaporator 41, and forms a spherical mold chamber 43 with two hemispherical mold chambers 44, completing the mold alignment.

[0029] As shown in FIG. 5, the loop water injection pump 61 operates by pumping water from the water tank 2 through the loop water injection pipe 62 into the spherical forming mold chamber 43. After the spherical forming mold chamber 43 is filled with water, the water overflows from the return gap 64 and returns to the water tank 2. Water continues to be injected through this loop, and when the compressor is turned on, the temperature of the evaporator 41 can be lowered to the point where round ice is formed.

[0030] Referring to Fig. 6, as shown in Fig. 6, the operation of water spray pump 71 sends water from water tank 2 through water spray pipe 72 to upper spray assembly 73 and water spray pipe 77, and upper spray assembly 73 forms a water curtain and sprays it onto the top of ice-making mold 31. When the ice melts and circulates, the resulting ice is sprayed by water spray pipe 77 onto the side of ice-making mold 31, causing the ice balls on one side of ice-making mold 31 to be released from ice-making mold 31, and the temperature of evaporator 41 is raised via the solenoid valve, causing the ice balls on one side of evaporator 41 to be released from evaporator 41.

[0031] The mold drive mechanism 5 removes the ice mold slide seat 3 from the fixed mold seat 4, and drops the released round ice from the ice drop port 15 onto the ice plate in the water tank 2.

[0032] The above description is merely a preferred embodiment of the present invention, and although the preferred embodiment of the present invention has been disclosed as above, it is by no means intended to limit the present invention. Various changes and modifications can be made within the scope of the present invention. Therefore, the scope of the claims of the present invention should be broadly interpreted to include such changes and modifications. [Explanation of symbols]

[0033] 1 Ice maker cabinet 2 water tanks 3 Ice-molded slides 4 Fixed mold seat 5. Mold drive mechanism 11 Water spray tank 12 Upper spray tank 13 Upper sealing protrusion 14 Return water outlet 15 Ice fall opening 16 Water stop ring 17 Return Channel 31 Ice mold 32 Water inlet 33 Insulated housing 34 Water Tank 35 Water Inlet 41 Evaporator 42 mold release gap 43 Spherical molding chamber 44 Hemispherical mold chamber 61 Loop water injection pump 62 Loop water injection line 63 Fountain 64 Reflux gap 71 Water spray pump 72 Water spray line 73 Upper spray assembly 74 Lower spray tank 75 Lower sealed concave tank 76 Water spray holes 77 Water spray pipe 78 Side water spray holes 331 Front Housing 332 Insulation Ring 333 Rear Housing 334 Insulated Tank

Claims

1. A round ice maker equipped with an ice making casing (1) and a water tank (2) that increases the clarity of the ice by loop water injection, The water tank (2) is disposed below the ice-making casing (1), and an evaporator (41), an ice-making mold (31), an ice-making mold slide seat (3), a fixed mold seat (4), and a mold drive mechanism (5) are disposed within the ice-making casing (1). The fixed mold seat (4) is fixed to the front side of the ice-making casing (1), and the mold mating seat is slidably attached to the rear side of the ice-making casing (1). The mold drive mechanism (5) is power-transmittingly connected to the fixed mold seat, and the evaporator (41) is fixed to the fixed mold seat (4) and faces one side of the ice mold slide seat (3), the ice mold (31) is fixed to the ice mold slide seat (3) and faces one side of the evaporator (41), the evaporator (41) and the ice mold (31) form at least one hemispherical mold chamber (44), and the evaporator (41) and the ice mold (31) form a spherical mold chamber (43) corresponding to the hemispherical mold chamber (44), The ice-making mold (31) protrudes from the ice-making mold slide seat (3), and a mold release gap (42) is formed between the ice-making mold slide seat (3) and the fixed mold seat (4). At least one water inlet (32) opening upward is formed in the upper part of the ice-making mold (31), and the water inlet (32) communicates with the spherical mold chamber (43) and is located within the mold release gap (42). A loop water injection mechanism and a release water spray mechanism are disposed between the ice making casing (1) and the water tank (2), the loop water injection mechanism includes a loop water injection pump (61) and a loop water injection pipe (62), at least one water spray outlet (63) is formed at the upper end of the loop water injection pipe (62), the water spray outlet (63) is located above the water injection port (32), a return gap (64) is formed between the water spray outlet (63) and the water injection port (32), the lower end of the loop water injection pipe (62) is connected to the water tank (2), and the loop water injection pump (61) is disposed on the loop water injection pipe (62), The mold release water spray mechanism includes a water spray pump (71), a water spray pipe (77), a water spray conduit (72), and an upper spray assembly (73) that forms a water curtain, the upper spray assembly (73) is disposed above the mold release gap (42) and is inserted laterally into the mold release gap (42), one ends of the water spray pipe (77) and the water spray conduit (72) are connected to the upper spray assembly (73) and the other ends are connected to the water tank (2), and the water spray pump (71) is disposed on the spray conduit.

2. The outside of the ice-making mold (31) is covered with a heat-insulating housing (33), The heat insulating housing (33) includes a front housing (331) and a rear housing (333), The front housing (331) has at least one insulating ring (332); The rear housing (333) has at least one hemispherical insulating tank (334); 2. The round ice maker according to claim 1, wherein the ice-making mold (31) is sandwiched between the front housing (331) and the rear housing (333).

3. The outside of the ice-making mold (31) is covered with a heat insulating paste layer, The round ice maker according to claim 1, wherein the heat insulating paste layer is applied to the outer surface of the ice mold (31).

4. A water spray tank (11) opening downward is formed on the upper wall of the ice making casing (1), The upper spray assembly (73) is fitted into the water spray mounting tank (11), The water spray tank (11) forms an upper spray tank (12) that opens downward along the lateral direction, A lower spray tank (74) opening upward along the horizontal direction is formed above the upper spray assembly (73), the upper spray tank (12) and the lower spray tank (74) are engaged with each other to form a water spray channel, the loop water injection pipe (62) is connected to the water spray channel, and the water spray channel is inserted into the demolding gap (42) along the horizontal direction; The upper spray tank (12) is provided at its front and rear ends with downwardly protruding upper sealing ribs (13), The lower spray tank (74) has an upwardly opening lower sealed recessed tank (75) formed on both the front and rear sides thereof. The round ice maker for increasing the transparency by loop water injection according to claim 1, characterized in that the two upper sealing ridges (13) are inserted into the two lower sealing recesses (75), respectively.

5. The lower portion of the upper spray assembly (73) is formed with a plurality of water spray holes (76) spaced apart along the lateral direction, The round ice maker for increasing clarity by loop water injection according to claim 4, characterized in that each of the water spray holes (76) is connected to a water spray channel.

6. The round ice maker for increasing clarity by loop water injection, as described in claim 4, characterized in that the lower part of the upper spray assembly (73) forms a long water spray port along the horizontal direction, the long water spray port and the water spray channel are connected, and the long water spray port is inserted horizontally into the demolding gap (42).

7. The release water spray mechanism has a side water spray member, The side water spray member includes the water spray pipe (77), The water spray pipe (77) is fixed laterally in the ice-making mold slide seat (3) and is positioned obliquely above the ice-making mold (31); The round ice maker for increasing transparency by loop water injection according to claim 1, characterized in that one end of the water spray pipe (77) is sealed and the other end is connected to the water spray pipe (72), the water spray pipe (77) is directed to one side of the ice-making mold (31), and a plurality of side water spray holes (78) are formed at intervals in the horizontal direction.

8. The round ice maker according to claim 1, characterized in that a water sump (34) is formed below the ice mold slide (3), the water sump (34) is located below the mold release gap (42), and water outlets (35) are formed on both the left and right sides of the water sump (34).

9. A water return port (14) and an ice drop port (15) are formed in the lower part of the ice making casing (1).

9. The round ice maker according to claim 8, wherein the return water port (14) is located behind the ice outlet (15), and a water stop ring (16) protruding upward is installed along the outside of the ice outlet (15). Between the water stop ring (16) and the left and right side walls of the ice making casing (1), return water channels (17) are formed, and the two water inlets (35) are located above the two return water channels (17), respectively.

10. The round ice maker according to claim 9, characterized in that the lower wall of the ice making casing (1) is inclined downward and forward from front to rear, and the vertical height of the water return port (14) is lower than the vertical height of the ice drop port (15).

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