JP2011112280A - Drum type ice-making machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drum type ice-making machine more finely adjusting a width of a gap between a blade edge of a cutter and an outer peripheral face of an ice-making drum, and reducing probability of displacement of the cutter. <P>SOLUTION: This drum type ice-making machine includes: a screw supporting section 16 disposed on a tank side plate 11; and an adjustment screw body 18 inserted and engaged with a screw hole 16b for the adjustment screw body, of the screw supporting section 16. A screw tip section 18a of the adjustment screw body 18 is kept into contact with a cutter rear end face 73, and the cutter 70 is moved forward and backward according to the forward and backward movement of the screw tip section 18a according to rotation of the adjustment screw body 18, thus the width of the gap 80 is adjusted. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a drum type ice making machine that generates ice pieces by peeling an ice layer generated on an outer peripheral surface of an ice making drum with a cutter.

  As this type of drum type ice making machine that has been conventionally used, for example, a configuration shown in the following Patent Document 1 and the like can be cited. That is, in the conventional apparatus, a cutter mount for fixing the cutter is disposed in the vicinity of the outer peripheral surface of the ice making drum. Long holes are provided at both ends along the width direction of the cutter, and a fixing bolt inserted into the long hole is screwed to the cutter mount, whereby the cutter is fixed to the cutter mount. Then, the width of the gap between the blade edge of the cutter and the outer peripheral surface of the ice making drum is adjusted by moving the cutter directly by hand along the extending direction of the elongated hole in a state where the fixing bolt is loosened. .

JP-A-8-29032

In the conventional drum type ice making machine as described above, the cutter blade edge and the outer peripheral surface of the ice making drum are moved by the manual movement of the cutter along the extending direction of the long hole with the fixing bolt loosened. Therefore, it is difficult to finely adjust the width of the gap between the blade edge of the cutter and the outer peripheral surface of the ice making drum.
In addition, since the cutter is not supported along the advancing and retracting direction after the fixing bolt has been tightened, the fastening torque of the fixing bolt acts on the cutter when the fixing bolt is tightened, and the cutter is displaced. .

  The present invention has been made in order to solve the above-described problems. The purpose of the present invention is to adjust the width of the gap between the blade edge of the cutter and the outer peripheral surface of the ice-making drum more precisely, and to position the cutter. It is an object of the present invention to provide a drum type ice making machine that can reduce the possibility of deviation.

  A drum type ice making machine according to the present invention includes a tank in which ice making water is stored, a pair of tank side plates provided in the tank and spaced apart from each other along the width direction of the tank, and a tank side plate that is rotatable. An ice making drum that is supported and disposed inside the tank so that a part of the outer peripheral surface is immersed in ice making water, and a blade tip that is disposed close to the outer peripheral surface of the ice making drum, between the tank side plates And a cutter provided such that the gap width between the outer peripheral surface and the cutting edge can be adjusted, and a cutter provided in the cutter, and disposed on the opposite side of the cutting edge with respect to the advancing / retreating direction of the cutter. A cutter rear end surface, a screw support portion provided on the tank side plate, and an adjustment screw body screwed into an adjustment screw body screw hole of the screw support portion, the screw tip portion of the adjustment screw body on the cutter rear end surface Abutting and adjusting screw body By screw tip according to the rotation is forward and backward, the cutter is retractable so that the width of the gap is adjusted.

  According to the drum type ice making machine of the present invention, the screw tip portion of the adjustment screw body is in contact with the cutter rear end surface, and the cutter tip moves forward and backward by advancing and retracting the screw tip portion according to the rotation of the adjustment screw body. Since the width of the gap is adjusted, the width of the gap can be adjusted by operating the adjusting screw body, and compared with the case where the cutter is moved directly by hand, the cutter blade edge and the outer peripheral surface of the ice making drum The width of the gap between can be adjusted more finely. In addition, since the cutter is supported by the screw tip portion of the adjustment screw body along the advancing / retreating direction, it is possible to reduce the possibility that the cutter is displaced.

It is a perspective view which shows the drum type ice making machine by Embodiment 1 of this invention. It is explanatory drawing which shows the state in the tank of FIG. It is a perspective view which shows the tank side plate of FIG. FIG. 4 is a perspective view showing a state where a cutter is attached to the tank side plate of FIG. 3. It is a perspective view which shows the drum type ice making machine by Embodiment 2 of this invention. It is a perspective view which shows the tank side plate of FIG. It is a perspective view which expands and shows the tank side plate and cutter of FIG.

The best mode for carrying out the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a perspective view showing a drum type ice making machine according to Embodiment 1 of the present invention, and FIG. 2 is an explanatory view showing a state in the tank of FIG. As shown in FIGS. 1 and 2, the tank 10 is a container for storing ice-making water 1 (see FIG. 2). An ice making drum 30 is arranged inside the tank 10 so that a part of the outer peripheral surface 31 is immersed in the ice making water 1. The tank 10 is provided with a pair of tank side plates 11 that are spaced apart from each other along the width direction 10 a of the tank 10. A shaft 32 (see FIG. 2) of the ice making drum 30 is rotatably supported by the tank side plate 11 via a bearing (not shown).

  As shown in FIG. 1, a gear motor 40 and a refrigerant inlet / outlet portion 50 disposed outside the tank side plate 11 are connected to the shaft 32 of the ice making drum 30. The gear motor 40 rotationally drives the ice making drum 30 along the rotation direction A indicated by an arrow in the drawing. The refrigerant inlet / outlet section 50 connects the ice making drum 30 to the external refrigeration circuit, supplies the refrigerant from the external refrigeration circuit to the inside of the ice making drum 30, and supplies the refrigerant heat-exchanged by the ice making drum 30 to the external refrigeration circuit. It is for returning to. That is, the ice making drum 30 functions as an evaporator in the refrigeration circuit. The outer peripheral surface 31 of the ice making drum 30 is cooled by the refrigerant, and an ice layer 60 (see FIG. 2) is generated on the outer peripheral surface 31.

  A cutter 70 is disposed between the tank side plates 11. The cutter 70 is disposed on the one end 11 a side of the tank side plate 11 along the depth direction 10 b of the tank 10. The cutter 70 has a cutting edge 71 disposed close to the outer peripheral surface 31 of the ice making drum 30. As is well known, the cutter 70 peels off the ice layer 60 generated on the outer peripheral surface 31 of the ice making drum 30 according to the rotation of the ice making drum 30. The removed ice layer 60 is stored as ice pieces in a stocker (not shown).

  Here, the narrower the gap 80 between the outer peripheral surface 31 of the ice making drum 30 and the blade edge 71 of the cutter 70 is, the deeper the blade edge 71 can be inserted into the ice layer 60. Can be peeled off. In addition, since the cutting edge 71 does not scrape the ice layer 60 unnecessarily, it can be avoided that a lot of fine ice pieces are mixed in the peeled ice layer 60, and ice pieces with good ice quality can be generated efficiently. In addition, as the width of the gap 80 is more uniform along the width direction 10a of the tank 10, the ice layer 60 can be peeled off with a uniform thickness, and high quality ice pieces can be generated. In the drum type ice making machine of this embodiment, the cutter 70 is provided so as to be capable of moving forward and backward so that the width of the gap 80 can be adjusted by the following configuration.

  FIG. 3 is a perspective view showing the tank side plate 11 of FIG. As shown in the figure, the tank side plate 11 is provided with a recess 12 and a guide groove 13. The recess 12 is a recess having a bottom surface 12a located on the other end 11b side of the tank side plate 11 with respect to the other end surface of the one end 11a. The guide groove 13 is a groove extending from the bottom surface 12 a of the recess 12 toward the other end 11 b of the tank side plate 11. The guide groove 13 is provided with an opening 13 a that opens along the extending direction of the guide groove 13 at the bottom surface 12 a of the recess 12, and a terminal portion 13 b that is located on the other end 11 b side of the tank side plate 11. ing. The guide groove 13 is provided so as to be inclined with respect to the horizontal so as to fall obliquely downward from the terminal end portion 13b toward the opening portion 13a.

  The bottom surface 12a of the recess 12 is provided with a pair of screw holes 14 for supporting member fixing screws arranged above and below the opening 13a. A screw hole 15 for a set screw that communicates the inside of the guide groove 13 and the outside of the upper end surface of the tank side plate 11 is provided in the upper portion of the end portion 13b.

  Next, FIG. 4 is a perspective view showing a state where the cutter 70 is attached to the tank side plate 11 of FIG. In the drawing, the side portion 72 of the cutter 70 is inserted into the guide groove 13. 4 shows a state in which one side portion 72 is inserted into the guide groove 13, but as shown in FIG. 1, the side portions 72 on both sides of the cutter 70 are guide grooves in each tank side plate 11. 13 is inserted. That is, the cutter 70 is supported by the guide groove 13 so as to be able to advance and retract. In the configuration of this embodiment, the extending direction of the guide groove 13 is the forward / backward direction 70 a of the cutter 70.

  A plate-like screw support portion 16 is provided in the recess 12 of the tank side plate 11. More specifically, the screw support portion 16 is provided with a pair of support member fixing screws 17 that are screwed into the support member fixing screw screw holes 14. The screw support portion 16 has a recess 12 so that the support member fixing screw 17 is screwed into the support member fixing screw screw hole 14 so as to cover the opening 13 a of the guide groove 13 along the forward and backward direction 70 a of the cutter 70. Mounted on. The screw support portion 16 covers the opening portion 13a, thereby restricting the cutter 70 from coming out of the opening portion 13a along the forward / backward direction 70a.

  The cutter 70 is provided with a cutter rear end face 73 disposed on the opposite side of the cutting edge 71 with respect to the advancing / retreating direction 70a. The cutter rear end surface 73 is provided at the rear end of the side portion 72, and extends so as to be parallel to the bottom surface 12 a of the recess 12 and the tank side end surface 16 a of the screw support portion 16.

  An adjustment screw body 18 is supported on the screw support portion 16. More specifically, the screw support portion 16 is provided with an adjustment screw body screw hole 16b so as to be positioned between the support member fixing screws 17, and the adjustment screw body 18 is provided in the adjustment screw body screw hole 16b. Is screwed. The adjustment screw body 18 is provided with a screw front end portion 18a that comes into contact with the cutter rear end surface 73 vertically when the screw support portion 16 is attached to the recess 12.

  The screw tip 18a is advanced and retracted by rotating the adjusting screw body 18. That is, the cutter 70 is moved forward and backward by the forward and backward movement of the screw tip 18a, and the width of the gap 80 is adjusted. Here, the screw front end portion 18a maintains the state of being in contact with the cutter rear end face 73 even when the adjustment of the width of the gap 80 is completed. That is, the screw tip 18a supports the cutter 70 along the advance / retreat direction 70a, and restricts the advance / retreat of the cutter 70 along the advance / retreat direction 70a.

  A positioning nut 19 is disposed between the screw head portion 18 b of the adjustment screw body 18 and the outer end surface 16 c of the screw support portion 16. The positioning nut 19 is a female screw body screwed to the adjustment screw body 18, and the position of the screw tip 18 a is fixed by tightening the positioning nut 19.

  After the adjustment of the width of the gap 80 is completed, the set screw 20 is screwed into the set screw screw hole 15 of the tank side plate 11. The distal end portion 20 a of the set screw 20 is in contact with the upper surface of the side portion 72 of the cutter 70 inside the guide groove 13. The positioning screw 20 fixes the position along the advancing / retreating direction 70 a of the cutter 70 by the tip 19 a being in contact with the upper surface of the side portion 72.

  In such a drum type ice making machine, the screw tip 18a of the adjusting screw body 18 is in contact with the cutter rear end surface 73, and the screw tip 18a is advanced and retracted according to the rotation of the adjusting screw body 18, Since the width of the gap 80 is adjusted by moving the cutter 70 back and forth, the width of the gap 80 can be adjusted by rotating the adjusting screw body 18, compared with the case where the cutter 70 is moved directly by hand. The width of the gap 80 between the 70 cutting edges 71 and the outer peripheral surface 31 of the ice making drum 30 can be adjusted more finely. In addition, the movement of the cutter 70 along the forward / backward direction 70a can be restricted by the screw tip 18a of the adjustment screw body 18, and the possibility that the cutter 70 will be displaced can be reduced. Thereby, the thickness of an ice piece becomes uniform and the quality ice piece with few mixing of a fine ice piece can be produced | generated efficiently.

  The cutter 70 is supported by the tank side plates 11 so that the side portions 72 on both sides of the cutters 70 are inserted into the guide grooves 13 of the tank side plates 11 so as to be able to advance and retreat. 13 is a plate member attached to the tank side plate 11 so as to cover the opening 13a along the advancing / retreating direction 70a of the cutter 70. Therefore, the width of the gap 80 can be made finer without using a conventionally used cutter mount. An adjustable configuration can be realized, and the component cost can be reduced.

Embodiment 2. FIG.
FIG. 5 is a perspective view showing a drum type ice making machine according to Embodiment 2 of the present invention. Note that portions that are the same as or equivalent to those in the first embodiment are described using the same reference numerals. In the figure, the tank 10 is provided with a pair of tank side plates 110 that are spaced apart from each other along the width direction 10 a of the tank 10. A cutter mount 120 is disposed between the tank side plates 110. The cutter mount 120 is disposed on the one end 110 a side of the tank side plate 110 along the depth direction 10 b of the tank 10. The cutter mount 120 is provided with a mount upper surface 121 that is inclined with respect to the horizontal so as to descend obliquely downward from the other end 110b side of the tank side plate 110 toward the one end 110a side.

  A cutter 170 having a cutting edge 171 close to the outer peripheral surface 31 of the ice making drum 30 is attached to the mount upper surface 121. The cutter 170 is provided so as to be able to advance and retract so that the width of the gap 80 between the outer peripheral surface 31 and the blade edge 171 can be adjusted. More specifically, the cutter 170 is provided with a plurality of long holes 172 that are spaced apart from each other along the width direction 10 a of the tank 10. Each long hole 172 extends along the depth direction 10 b of the tank 10. The cutter 170 is attached to the mount upper surface 121 by screwing fixing bolts 172 a inserted into the respective elongated holes 172 into the mount upper surface 121. That is, the cutter 170 is slid on the mount upper surface 121 along the extending direction of each elongated hole 172 in a state where the fixing bolt 172a is loosened, so that the width of the gap 80 is adjusted. Be advanced and retreated. Therefore, in this embodiment, the extending direction of the mount upper surface 121 along the depth direction 10 b of the tank 10 is the forward / backward direction 170 a of the cutter 170.

  Here, if the cutter 170 is directly moved manually, fine adjustment of the width of the gap 80 becomes difficult. In the drum type ice making machine of this embodiment, the width of the gap 80 can be finely adjusted by the following configuration.

  FIG. 6 is a perspective view showing the tank side plate 110 of FIG. In the drawing, a screw support portion 116 is provided on one end 110 a side of the tank side plate 110. The screw support portion 116 is a protrusion protruding from the tank side plate 110 along the width direction 10a of the tank 10 so that a support portion inner end surface 116a facing the cutter rear end surface 173 (see FIG. 7) of the cutter 170 is formed. Is the body. The screw support portion 116 supports an adjustment screw body 18 to be described later, and the screw support portion 116 is provided with an adjustment screw body screw hole 116b into which the adjustment screw body 18 is screwed. The adjustment screw body screw hole 116b extends along the advancing / retreating direction 170a of the cutter 170, which is the extending direction of the mount upper surface 121 along the depth direction 10b of the tank 10. The support portion inner end surface 116a is provided on a plane orthogonal to the advance / retreat direction 170a.

  The screw support portion 116 is provided with a support portion outer side surface 116c disposed on the opposite side of the support portion inner side surface 116a with respect to the advancing / retreating direction 170a of the cutter 170. The tank side plate 110 is provided with a first region 130 that is continuous with the support portion outer side surface 116c and a second region 131 that is continuous with the support portion inner side surface 116a. In other words, the first region 130 is a region of the tank side plate 110 closest to the support portion outer side surface 116c, and the second region 131 is a region of the tank side plate 110 closest to the support portion inner side surface 116a. The first region 130 is recessed along the width direction 10a of the tank 10 as compared with the second region 131 so as to extend the support portion outer side surface 116c. The reason why the first region 130 is recessed as compared with the second region 131 is to allow the entry of a tool such as a spanner for operating a positioning nut 19 described later (to secure a working space for the tool). Because).

  Next, FIG. 7 is an enlarged perspective view showing the tank side plate 110 and the cutter 170 of FIG. In the drawing, an adjustment screw body 18 is screwed into an adjustment screw body screw hole 116 b of the screw support portion 116. A screw front end portion 18 a of the adjustment screw body 18 is in contact with a cutter rear end surface 173 of the cutter 170. That is, the cutter 170 is moved forward and backward by the forward and backward movement of the screw tip 18a, and the width of the gap 80 is adjusted. Accordingly, the width of the gap 80 can be finely adjusted as compared with the case where the cutter 170 is directly moved manually.

  Here, since the screw hole 116b for the adjustment screw body extends along the advance / retreat direction 170a of the cutter 170, when the adjustment screw body 18 is rotated, the screw tip 18a moves in the advance / retreat direction 170a of the cutter 170. Advancing and retreating along. That is, the drum type ice making machine of this embodiment is configured such that the amount by which the screw tip 18a advances and retreats is the same as the amount by which the cutter 170 advances and retreats. Thereby, the adjustment screw body 18 can reduce a sensory deviation between the rotation operation and the movement amount of the cutter 170, and the adjustment work of the width of the gap 80 can be facilitated.

  A positioning nut 19 is disposed between the screw head portion 18 b of the adjustment screw body 18 and the support portion outer side surface 116 c of the screw support portion 116. The positioning nut 19 is a female screw body screwed to the adjustment screw body 18, and the position of the screw tip 18 a is fixed by tightening the positioning nut 19.

  Here, if the adjusting screw body 18 is arranged at a position sufficiently away from the tank side plate 110, a wide space can be provided between the positioning nut 19 and the tank side plate 110, and the positioning nut 19 is placed in this space. A tool for operation can be entered. However, for finer gap adjustment of the cutter 170, it is preferable to press the outer end of the cutter 170, and it is preferable to dispose the adjusting screw body 18 at a position close to the tank side plate 110. Therefore, in the drum type ice making machine of this embodiment, the first region 130 is recessed to allow the tool to enter, and the space between the positioning nut 19 and the tank side plate 110 is widened. Thereby, the workability of the positioning nut 19 is ensured while the cutter 170 can be stably advanced and retracted.

  In such a drum type ice making machine, the screw hole 116b for the adjustment screw body extends along the forward / backward direction 170a of the cutter 170 so that the screw tip 18a is displaced along the forward / backward direction 170a of the cutter 170. Therefore, the adjustment screw body 18 can reduce a sensory deviation between the rotation operation and the movement amount of the cutter 170, and the adjustment operation of the width of the gap 80 can be facilitated.

  Further, the first region 130 of the tank side plate 110 that is continuous with the support portion outer side surface 116c extends the support portion outer side surface 116c as compared with the second region 131 of the tank side plate 110 that is continuous with the support portion inner side surface 116a. Since it is depressed along the width direction 10 a of the tank 10, the cutter 170 can be stably advanced and retracted, and the workability of the positioning nut 19 can be ensured.

  DESCRIPTION OF SYMBOLS 10 Tank, 11,110 Tank side plate, 13 Guide groove, 16,116 Screw support part, 16b, 116b Screw hole for adjustment screw bodies, 18 Adjustment screw body, 18a Screw tip part, 30 Ice-making drum, 31 Outer peripheral surface, 70, 170 cutter, 70a, 170a advance / retreat direction, 71,171 cutting edge, 73,173 cutter rear end face, 80 gap, 120 cutter mount, 121 mount top face, 130 first area, 131 second area, A drum rotation direction

Claims (4)

A tank in which ice-making water is stored;
A pair of tank side plates provided in the tank and spaced apart from each other along the width direction of the tank;
An ice making drum that is rotatably supported by the tank side plate and disposed inside the tank so that a part of the outer peripheral surface is immersed in the ice making water;
It has a cutting edge arranged close to the outer peripheral surface of the ice making drum, is arranged between the tank side plates, and can advance and retreat so that the width of the gap between the outer peripheral surface and the cutting edge is adjusted. The cutter provided in the
A cutter rear end face provided on the cutter and disposed on the opposite side of the cutting edge with respect to the advancing and retreating direction of the cutter;
A screw support provided on the tank side plate;
An adjustment screw body screwed into the screw hole for the adjustment screw body of the screw support portion,
The screw tip of the adjustment screw body is in contact with the rear end surface of the cutter, and the cutter tip is advanced and retracted by the advancement / retraction of the screw according to the rotation of the adjustment screw body. A drum type ice maker characterized by the fact that it is adjusted. A guide groove provided on the tank side plate and extending along the forward and backward direction of the cutter;
The cutter is supported by the tank side plate so as to be able to advance and retreat by inserting side portions on both sides of the cutter into the guide grooves of each tank side plate,
The drum type ice making machine according to claim 1, wherein the screw support portion is a plate member attached to the tank side plate so as to cover the opening portion of the guide groove along the forward and backward direction of the cutter. . A cutter mount disposed between the tank side plates;
A mount upper surface provided along the cutter mount, and extending along the advancing and retreating direction of the cutter; and
The cutter is attached to the upper surface of the mount so as to be able to advance and retract,
The screw support portion is a protrusion projecting from the tank side plate along the width direction of the tank so as to form a support portion inner side surface facing the cutter rear end surface.
The screw hole for the adjustment screw body is extended along the advancing / retreating direction of the cutter so that the screw tip portion is displaced along the advancing / retreating direction of the cutter. Drum ice machine. A support portion outer side surface provided on the screw support portion and disposed on the opposite side of the support portion inner side surface with respect to the forward and backward direction of the cutter;
The first region of the tank side plate that is continuous with the outer side surface of the support portion is wider than the second region of the tank side plate that is continuous with the inner side surface of the support portion. 4. The drum type ice making machine according to claim 3, wherein the drum type ice making machine is recessed along a direction.

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