JPH11118679A - Method and apparatus for holding and feeding refrigerated work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To hold and feed a refrigerated work easily and surely by feeding the work, along with frozen fluid, from a tubular mold by a specified amount at a time by means of a feeding shaft extending into the tubular mold. SOLUTION: A tubular mold 1 incorporating a work 10 along with a fluid 5 frozen by means of a refrigerator is inserted into the inside surface 2C at the mold cooling section 2A of a refrigeration unit 2 and secured in place. The mold cooling section 2A sustains the fluid 5 and the work 10 in frozen state. A feeding shaft 4 is then coupled with a drive shaft 8 through a coupling 9. Subsequently, a planar heater 3 is conducted to melt the contact surface of the frozen fluid 5 and the work 10 slightly and then the feeding shaft 4 is elevated by a specified amount by a feed driver 7 through a drive shaft 8 and a coupling 9. Consequently, the frozen fluid 5 and the work 10 are fed out upward by a specified amount from the tubular mold 1 and then the planar heater 3 is turned off. A cutter is set above the frozen fluid 5 and the work 10 which are then sliced, for example.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frozen work holding and feeding method used for freezing a living body or the like and thinly slicing the same, and an apparatus therefor. is there.

[0002]

2. Description of the Related Art Conventionally, a refrigerating work holding / feeding device of this type is provided with an OTC (Oxy Tetra Cyclin) together with a work in a refrigerating mold prepared separately from the device.
e) Inject a freezing fluid such as a compound, and use a refrigeration device prepared separately from the above device,
Cooling the mold to freeze the work and the fluid, taking out the frozen fluid and the work solidified by the freezing from the mold, and holding the cylindrical work holding the cooling function of the frozen work holding and feeding device. The workpiece is inserted into the work holder, and is pushed out from the work holder by a predetermined amount by a feed drive device provided at the bottom of the work holder to perform processing such as slicing.

[0003]

However, as described above, the method of inserting the frozen work together with the fluid frozen elsewhere into the work holding portion of the refrigerating work holding and feeding device is time-consuming, and in particular, the method of freezing is difficult. Workability is poor because the melted fluid or workpiece melts, and it is difficult to accurately insert the workpiece into the workpiece holding part and hold it using the workpiece holding part due to the dimensional error of the frozen fluid and the workpiece formed by the mold. And other various problems.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a refrigerating work holding and feeding method which can eliminate the above-mentioned problems, and which can simply and accurately hold and feed out a frozen work and an apparatus therefor.

[0005]

According to the present invention, there is provided a method for holding and feeding a frozen work according to the present invention, wherein a fluid capable of being frozen in a cylindrical mold having at least one open end is provided. Together with the work, in a state where the work is immersed in the fluid, the fluid and the work are frozen together, and the work is held in the cylindrical mold via the frozen fluid, The work is fed out from the cylindrical mold by a predetermined amount together with the frozen fluid by a feed shaft that penetrates the bottom of the cylindrical mold and extends into the cylindrical mold.

According to this method, the workpiece can be accurately held in the cylindrical mold via the frozen fluid,
At the same time, the work can be accurately unwound from the cylindrical mold. Further, since the frozen fluid and the work remain in the cylindrical mold, the feeding operation is simple.

[B] A refrigerating work holding and feeding apparatus according to the present invention comprises a cylindrical mold having at least one open end, and a method of integrally freezing with the fluid in a state of being immersed in a fluid in the cylindrical mold. A work to be held in the cylindrical mold via the frozen fluid, a refrigeration unit for cooling the cylindrical mold, and a tip penetrating through the bottom of the cylindrical mold to form a work inside the mold. And a feed drive device provided on the base end side of the feed shaft to feed the feed shaft in the axial direction.

[0008] According to this apparatus, a fluid which can be frozen in the cylindrical mold and a work are put into the cylindrical mold and the freezing unit is used.
Only by freezing them, the frozen work can be accurately held and fed out. In addition, by adding a coupling portion for restricting relative movement in the axial direction with the frozen fluid formed in the cylindrical mold at the tip of the feed shaft, not only the feeding but also the drawing of the work can be performed. Can be performed reliably.

Further, the cylindrical mold is detachably attached to a mold cooling part of the refrigeration unit, and the feed shaft is
If incorporated into the bottom of the cylindrical mold and is configured to be detachable with respect to the feed drive device, a cooling device separate from the refrigeration unit cools the cylindrical mold to remove the fluid and the work. After being frozen, it can be attached to the mold cooling section of the freezing unit, so that the operation rate of the device can be increased and the device can be configured in a horizontal direction.

[0010] Further, by adding a planar heater along the inner surface of the cylindrical mold, only the surface of the frozen fluid and the surface of the workpiece that is in contact with the inner surface of the cylindrical mold at the time of extension or retraction are melted. By doing so, it is possible to smoothly carry out and retract.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a sectional view showing a state before setting a frozen work holding and feeding device according to an embodiment of the present invention, FIG. 2 is a sectional view showing a set state of the frozen work holding and sending device, and FIG. FIG. 4 is a cross-sectional view showing a state in which the work is fed out of the holding and feeding device, FIG. 4 is a cross-sectional view showing a slice state of the work by the frozen work holding and feeding device, and FIG. It is a flowchart.

In these figures, reference numeral 1 denotes a cylindrical mold having an open upper end, and the cylindrical mold 1 is detachably attached to a mold cooling section 2A of the refrigeration unit 2. Mold cooling unit 2A
Has an annular cooling chamber 2 </ b> B through which a cooling medium flows, is formed in a cylindrical shape, and is fitted with a cylindrical mold 1. It is preferable that the mold cooling part 2A is formed so that its inner surface 2C is formed as a tapered surface that expands upward, and is closely attached to the cylindrical mold 1 so as to enhance heat transfer efficiency.

On the inner surface of the cylindrical mold 1, a planar heater 3 supplied from a power source (not shown) is mounted. A feed shaft 4 extending upward is mounted on the bottom of the cylindrical mold 1 so as to penetrate vertically. When the feed shaft 4 is at the lower limit position shown in FIG.
Is provided near the bottom, and at the tip thereof is provided a brim-shaped coupling portion 6 for restricting relative movement in the axial direction between the feed shaft 4 and a frozen fluid 5 described later. . The connecting portion 6 is not limited to a brim-shaped member, as long as it can regulate the relative movement in the axial direction between the feed shaft 4 and a frozen fluid 5 described later. Axis 4
What is necessary is just to have a convex part or a concave part in the direction perpendicular to the axial direction.

The base end (lower end in FIG. 1) of the feed shaft 4 is
The feed shaft 4 is removably connected to a drive shaft 8 of a feed drive device 7 for moving the feed shaft 4 by a specified amount in the axial direction thereof. Next, the operation of the refrigerating work holding and feeding device according to the embodiment of the present invention will be described with reference to FIGS.

(1) First, the coupling 9 is released, the feed shaft 4 is separated from the drive shaft 8, and the cylindrical mold 1 is taken out of the mold cooling bottom 2A together with the feed shaft 4 (see FIG. 1). As described above, the fluid 5 that can be frozen, such as an OTC compound, and the work 10 are put into the cylindrical mold 1 separated from the feed driving device 7. At this time, the work 10 is set to be buried in the fluid 5 that can be frozen.

As described above, the cylindrical mold 1 having the feed shaft 4 at the bottom and having the freezing fluid 5 and the work 10 charged therein.
Is cooled by a refrigerating device (not shown) prepared separately from the freezing unit 2 to freeze the fluid 5 and the work 10 (step S1 in FIG. 5). The frozen fluid 5 becomes solidified integrally with the workpiece 10 by freezing, and further, the cylindrical mold 1
Of the feed shaft 4 located near the bottom of the feed shaft 4.

(2) Next, this cylindrical mold 1 is inserted into the inner surface 2C of the mold cooling section 2A of the refrigeration unit 2 and fixed to the mold cooling section 2A with bolts (not shown) or the like. The mold 1 is cooled by the mold cooling unit 2A, and the frozen state of the fluid 5 and the work 10 frozen is maintained. Next, the feed shaft 4 and the drive shaft 8 are connected by the coupling 9 (see step S2 in FIGS. 2 and 5).

(3) Next, the planar heater 3 is energized, and the frozen fluid 5 in contact with the planar heater 3 and the contact surface of the workpiece 10 which may be partially in contact with the heater 5 are slightly reduced. (Step S3 in FIG. 5), and the feed driving device 7
As a result, the feed shaft 4 is raised by a predetermined amount via the drive shaft 8 and the coupling 9. Due to the elevation of the feed shaft 4, the frozen fluid 5 and the work 10 are fed upward by a predetermined amount from the cylindrical mold 1 (see FIG. 3 and step S4 in FIG. 5).

When the feeding is completed, the sheet heater 3 is turned off (see step S5 in FIG. 5). (4) Next, the fed-out frozen fluid 5 and work 1
The cutter 11 is set on the upper part of the “0”.
Processing such as slicing by No. 1 is performed (see step S6 in FIGS. 4 and 5).

Thereafter, processing such as feeding of the feed shaft 4 and slicing are sequentially repeated. In the embodiment described above, the cylindrical mold 1 is detachable from the mold cooling section 2A of the refrigeration unit 2, and the feed shaft 4 is configured to be able to be separated from the drive shaft 8, and the fluid 5 and the work 1
0 into the mold cooling unit 2 of the refrigeration unit 2
Although the example in which the cooling unit is cooled and solidified by a refrigerating device different from A and attached to the mold cooling unit 2A is shown, the fluid 5 and the work 10 are separated from the mold cooling unit 2A so that the cylindrical mold 1 and the feed shaft 4 are not attached or detached. It may be configured to be solidified by cooling.

In the above-described embodiment, the leading end of the feed shaft 4 is provided with the brim-shaped coupling portion 6 for regulating the relative movement in the axial direction between the feed shaft 4 and the frozen fluid 5. 5 is more securely connected to the feed shaft 4 in the axial direction, so that the frozen fluid 5 and the work 10 can be more reliably fed out.
Although an example has been shown in which zero can be drawn in, the frozen fluid 5 itself has a binding action, so the coupling portion 6 may be omitted.

Further, in the above-described embodiment, in order to smoothly feed out the frozen fluid 5 and the work 10 from the cylindrical mold 1, the planar heater 3 is provided on the inner surface of the cylindrical mold 1. However, without using the planar heater 3, the PTF
Various modifications are possible, such as the inner surface of the cylindrical mold 1 may be formed of a material to which the frozen fluid 5 is slippery, such as E (tetrafluoroethylene resin).

Further, the present invention is not limited to the above-described embodiment, and various modifications are possible based on the gist of the present invention, and these are not excluded from the scope of the present invention.

[0024]

As described above in detail, according to the present invention, when holding and feeding a frozen work, it is simple and easy.
A properly frozen work can be held and smoothly fed out.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state before setting a refrigerating work holding and feeding device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a setting state of the refrigerating work holding and feeding device according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating a state in which the work is fed out of the refrigerated work holding / feeding device according to the embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a state of slicing the work by the frozen work holding and feeding device according to the embodiment of the present invention.

FIG. 5 is an operation flowchart of the frozen work holding and feeding device according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylindrical type | mold 2 Refrigeration unit 2A type | mold cooling part 2B Annular cooling chamber 2C Inner surface of a cylindrical type | mold 3 Planar heater 4 Feed shaft 5 Fluid (freeze) 6 Collar-shaped coupling part 7 Feed drive device 8 Drive shaft 9 Coupling 10 Work 11 Cutter

Claims (5)

[Claims] 1. A frozen work holding and feeding method for feeding a frozen work by a predetermined amount, wherein (a) a work is put together with a freezeable fluid into a cylindrical mold having at least one open end; In a state where the work is immersed in the fluid, the fluid and the work are integrally frozen, and the work is held in the cylindrical mold via the frozen fluid. A method for holding and feeding a refrigerated work, wherein the work is fed out by a predetermined amount from the cylindrical mold together with the frozen fluid by a feed shaft extending through the bottom of the cylindrical mold into the cylindrical mold. 2. A refrigerating work holding and feeding device for feeding a frozen work by a predetermined amount, wherein (a) a cylindrical mold having at least one open end, and (b) a fluid immersed in the cylindrical mold. (C) a work that cools the tubular mold in a state where the fluid is frozen together with the fluid and is held in the tubular mold via the frozen fluid; and (c) a refrigeration unit for cooling the tubular mold. d) a feed shaft whose tip extends through the bottom of the cylindrical mold and extends into the cylindrical mold; and (e) is provided at the base end side of the feed shaft and gives axial feed to the feed shaft. A refrigerating work holding and feeding device, comprising: a feed driving device. 3. A refrigeration-type workpiece holding and feeding device according to claim 2, wherein a coupling portion that regulates relative movement in the axial direction with a frozen fluid formed in the cylindrical mold at a tip of the feed shaft. A refrigerating work holding and feeding device characterized by adding. 4. The refrigerating work holding and feeding device according to claim 2, wherein the cylindrical mold is detachably attached to a mold cooling part of the refrigerating unit, and the feed shaft is formed of the cylindrical mold. A refrigerating work holding and feeding device, which is incorporated in a bottom portion and is configured to be detachable from the feed driving device. 5. The refrigerating work holding / feeding device according to claim 2, wherein a planar heater is added along the inner surface of the cylindrical mold. .