JPH0716909B2 - Dry ice cutting equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dry ice cutting device, and more particularly to a dry ice cutting device in which an end face of a dry ice block is partially sliced and cut off to be flat or cut into a predetermined size.

[0002]

[Prior Art] Normally, at ice cream shops and cake shops, dry ice pieces are put in for customers who take their products home.
This dry ice piece is prepared by appropriately crushing a thin plate-shaped piece having a weight of 1 kg. This thin plate of dry ice is made by cutting a block or block, which is generally manufactured as a cube having a side of 25 cm, into halves, and cutting each half into several pieces. At that time, when cutting out the above-mentioned thin plate-shaped dry ice cube of 25 cm on a side, it may be necessary to slice and cut off at least one end surface to be a flat surface.
That is, such an operation is not necessary because the end face is flat when cutting out a thin plate from the dry ice immediately after the production, but the dry ice stored for several days after the production is necessary because the end face is curved. . Conventionally, band saws and the like have been used to cut off the end surface of dry ice and divide it into required sizes. Then, the subsequent cutting into a thin plate shape is performed by a dry ice cutting device as described in JP-B-63-39029.

[0003]

However, cutting off the dry ice end face by a band saw or the like and cutting the dry ice into the required size are manually performed and are therefore very dangerous. Therefore, it is necessary to rely on an expert. The effort was extremely large.

An object of the present invention is to solve such a conventional problem, and to provide an automatic dry ice cutting device for slicing and cutting the end surface of dry ice or cutting it into a predetermined size. It is in.

[0005]

A dry ice cutting device of the present invention is provided in a conveyor device provided with two endless carriers arranged in parallel at a distance, and in a space between the endless carriers. A first circular saw, a part of which projects above the transport support surface of the endless transporter, and a first circular saw, which is arranged in the same vertical plane as the first circular saw and above the transport support surface of the endless transporter. a second circular saw, wherein the conveyor device arranged outside of the endless carrier both, each containing a reciprocating inward capable side guard portion, wherein each endless conveyor member of the conveyor apparatus
Is a number of strip-shaped supports arranged in parallel along the transport direction.
A plate, wherein the first circular saw and the second circular saw are
The rotation center position of the shifts in the conveying direction of the conveyor device ,
And, wherein the height from the conveying support surface of the top of the endless carrier of the first circular saw and h _1, the height from the conveyance support surface bottom of the second circular saw h ₂ When
h ₁ ≧ h ₂ and the dry ice that has been loaded
On the other hand, each is configured to cut from the top to the bottom
It is characterized by being.

[0006]

According to the dry ice cutting device of the present invention, the dry ice is placed at the entrance of the conveyor device, the cutting position is aligned with the center of the gap between the two endless carriers, and one side guard is moved inward. And contact one end of dry ice. Next, the other side guard portion is also moved inward and brought into contact with the other end surface of the dry ice, and the dry ice is sandwiched between both side guard portions for positioning. After that, the two endless carriers are moved at the same speed, and the dry ice laid on the carrier supporting surface across both carrier is vertically moved by the side guard portion while maintaining the position relative to the carrier supporting surface. Two circular saws are approached, a first circular saw making a cut in the lower part of the dry ice and a second circular saw making a cut in the upper part of the dry ice. The cuts from the bottom and the cuts from the top are connected by the positional relationship between the two circular saws, so that the dry ice is cut into two from a predetermined position. At that time, it is possible to freely perform from the slicing of the end surface of the dry ice block to the cutting at an arbitrary position by appropriately selecting the moving distances of the respective side guard portions.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The dry ice cutting device of the present invention will now be described in more detail with reference to the embodiments shown in the drawings. 1 is a plan view of a dry ice cutting device 10 according to an embodiment of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a right side view of the dry ice cutting device of FIG. The dry ice cutting device 10 of this embodiment includes two endless carriers 12 having different widths,
A conveyor device 11 is provided in which 13 are arranged in parallel at a slight interval (intervals are shown by 14). Each of the endless carriers 12 and 13 is fixed by bridging between two parallel endless chains, thereby
A large number of strip-shaped support plates 12a arranged in parallel along
13a is provided. Endless transport of such a strip structure
The bodies 12 and 13 are compared with an integrally formed endless belt or the like.
There is no malfunction at the end of the equipment due to low temperature curing,
As it rotates smoothly following the dress chain,
The function as a ya can be fully maintained. Moreover,
Strip-shaped support plates 12a that form the conveyors 12 and 13,
12b is an extremely low temperature object called dry ice.
Made from high density polyethylene resin to support,
It is designed so as not to freeze and stick to each other.

The conveyor device 11 has a strip-shaped support plate 12 for each endless carrier located on a transport path for transporting an object to be transported (dry ice) from an inlet portion 15 to an outlet portion 16.
a, 13a and a rail for slidably supporting the same (see the rail 13b for the endless carrier 13 in FIG. 2).
(Only visible), two rails are provided along each chain for each endless carrier 12,13. These two endless carriers 12, 1
3 are operated at the same speed by one drive motor 17. Each endless carrier 12, located on this rail,
The surface of each of the support plates 12a and 12b of 13 is referred to as a transport support surface for convenience.

The dry ice cutting device 10 is further provided with side guard parts 18 and 19 which are disposed on the outer sides of both the endless carriers 12 and 13 of the conveyor device 11 and can reciprocate inwardly. The side guard portions 18 and 19 are movable independently of each other, and the means will be described below. In the upper part of the conveying path of the conveyor device 11, the inlet part 15 side and the outlet part 16 are arranged so as to cross the conveying path.
Support rods 20 and 21 are arranged on the respective sides.

The slider 2 is provided at one end of each of the support rods 20 and 21, that is, at the outer end of the endless carrier 12.
2a and 22b are slidably mounted on the support rods 20 and 21. One side guard portion 18 arranged on the outer side of the endless carrier 12 is connected to the lower portion of each slider 22a, 22b. Therefore, the side guard portion 18 is suspended by the two sliders 22a, 22b. Will be. Further, similarly to this, the other ends of the support rods 20 and 21, that is, the endless carrier 1
Sliders 23a and 23b are slidably mounted on the support rods 20 and 21 at the outer ends of the slider 3. And
The other side guard portion 19 has sliders 23a, 23b.
Is connected and suspended.

These pairs of sliders 22a, 22b and 23a, 23b are connected by connecting rods 24, 25 for each pair. Therefore, each pair of sliders 22a, 22a
b and 23a and 23b move integrally, respectively, and each side guard part 18 and 19 can be moved in parallel in the width direction of the endless carrier. Sliders 22a on each side,
22b and 23a, each connecting rod 24 for connecting 23b,
Reference numeral 25 also serves as a sliding means for sliding the slider with respect to the support rods 20 and 21. The sliding means will be described by taking the slider 23a and the connecting rod 25 as an example.

The end portion of the connecting rod 25 sandwiches the support rod 20, and bearings 26 mounted on the slider 23a on both sides thereof.
Are rotatably supported by the bearings 26 and are in mutual contact with the upper portions of the bearings 26 in a state orthogonal to the support bar 20 exposed from the window 27 formed in the slider 23a. A handle wheel 28 for rotating operation is attached to the connecting rod 25 at a position adjacent to the slider 23a. As a result, when the connecting rod 25 is rotated, since it is in contact with the support rod 20 at the window portion 27 of the slider 23a, it rolls on the support rod 20, and as a result, the slider 23a slides on the support rod 20.

By the way, the connecting rod 25 is formed of one straight rod as shown in FIG. 1, but the other connecting rods 24 connect the five rods by a universal joint so that rotation can be transmitted. It is configured by This is the connecting rod 2
As shown in Fig. 5, when the rod is made up of one rod, it collides with the constituent elements of the main cutting device 10 at an almost intermediate position. Same as 25. Therefore, the bearing 2 provided on the slider 22a adjacent to one slider 22a
By rotating a handle wheel 28 attached to one split bar member rotatably supported by the slider 22,
a and 22b slide on the support rods 20 and 21.

At the intermediate position of the conveyor device 11 in the transfer direction, the space 1 between the two endless transfer bodies 12, 13 is formed.
Two circular saws 29, 30 are arranged one above the other in a vertical plane passing through 4. In the lower side, that is, the first circular saw 29, the rotation shaft 31 thereof is arranged below the strip-shaped support plate support rails 12b and 13b of the endless transfer bodies 12 and 13, so that substantially the upper half is conveyed from the gap portion 14. It is arranged so as to project on the path. Further, the upper or second circular saw 30 is wholly located on the transport supporting surface of the endless transport bodies 12 and 13, and the center position of the rotation shaft 32 is the lower circular saw 29.
It is arranged on the inlet side in the transport direction with respect to that. The circular saw 30 on the upper side is arranged such that the lowermost portion of the peripheral blade portion is located at the same height as the uppermost portion of the peripheral blade portion of the lower circular saw 29 and the transport support surface.

The arrangement of both circular saws 29 and 30 is such that the cutting groove formed by the upper circular saw 30 and the lower circular saw for dividing the dry ice conveyed by the endless conveyors 12 and 13 into two pieces. This is because the cutting groove formed by 29 must be finally continuous in the height direction. From this point of view, as shown in FIG. 4, the height from the uppermost carrying support surface of the lower circular saw 29 is set to h _1, and the height from the lowermost carrying support surface of the upper circular saw 30 is set. if the height and h _2, may be set the position of both circular saw 29, 30 in relation to h ₁ ≧ h _2.

The dry ice cutting device 10 of this embodiment is constituted by the two circular saws 29 and 30 as described above for the following reason. The thickness of dry ice cut by a circular saw corresponds to a distance of approximately 2/3 of the radius of the circular saw, and thus 1
If you try to cut a cube of 25 cm on a side with a circular saw, you must use one with a diameter of at least about 70 cm. Such a circular saw occupies a very large installation area in the entire apparatus, which is very dangerous, and the weight of the circular saw is considerable, so that it is not easy to replace the circular saw. On the other hand, if the circular saw is divided into two and the dry ice block is cut from the upper side and the lower side, each circular saw is small, and therefore the protective cover is easy to attach and the weight is light, so the replacement work is required. Is also easy. Further, if two circular saws are used, the thickness of each circular saw can be reduced, and as a result, cutting loss can be reduced and therefore chips can be reduced. Also, the first circular saw
29 and the second circular saw 30, as indicated by the arrow in FIG.
The dry ice carried in by the conveyor device 11
On the other hand, it is designed to cut from the top to the bottom, respectively.
Is made. That is, both circular saws 29 and 30 are to be cut.
It is a so-called down-cut arrangement for objects. this
Thus, in the cutting device 10, the endless carrier 1
Make sure to keep the relatively slippery dry ice on 2 and 13
You can put it in, and when you cut the dry ice
Eject cold chips below and behind the cutting device
It is possible to maintain the working environment around the cutting device.
You can do everything. In addition, reference numeral 33 is a double circular saw 29,
A motor for rotating 30 is shown. Both circular saws 29, 30
The rotary shafts 31 and 32 are operatively linked to the drive shaft of the motor 33 by belts 34 and 35. Also, reference numeral 36
Shows a protective cover mounted to cover the upper half of the upper circular saw 30 for hazard prevention.

Next, the dry ice cutting device 1 of this embodiment
The operation of 0 will be described. First, description will be made on the case where the curved one end surface of the dry ice is thinly cut off to be a flat surface. The slice thickness of the one end surface of the dry ice, that is, the thickness to be cut off is determined, and then the handle wheel 28 is rotated to rotate the slider 23a, 23b is moved to move the side guard portion 19 to the inner side of the transport path on the transport support surface of the endless transport body 13 so as to be close to the circular saws 29 and 30, and stop at a position where the distance therebetween is the same as the slice thickness. Then, the sliced end surface of the dry ice block is brought into contact with the inner side surface of the side guard portion 19 on the table 37 installed at the entrance portion 15 of the conveyor device 11, and then the handle wheel 28 is rotated to rotate the other side. Guard part 18
Is moved to the inside of the transport path on the transport support surface of the endless transport body 12 and the inner surface thereof is brought into contact with the other end surface of dry ice. With this, the preparation for cutting is completed, and the motor 17 and the circular saw 29, which drive the endless carriers 12 and 13,
The motor 33 that drives 30 is turned on.

Next, when the dry ice on the table 37 is pushed into the transfer path, the dry ice block is carried on the transfer support surfaces of the two endless transfer bodies 12 and 13 moving at the same speed. Further, the conveyance proceeds with the side guard portions 18 and 19 on both sides accurately maintaining the position with respect to the conveyance supporting surface without fluctuation for one minute in the width direction. And the dry ice block is first the upper circular saw 3
A cut is made in the upper half of the cut, and then a cut is made in the lower half of the circular saw 29, and these cuts are connected at the center of the dry ice as described above. When the dry ice has passed through the two circular saws 29 and 30, the dry ice blocks are longitudinally split, one of which is the endless carrier 12.
Of the endless transport body 13 and the other is on the transport support surface of the endless transport body 13. Then, the other divided portion becomes a sliced portion having a thickness that matches the set distance between the circular saws 29, 30 and the side guard portion 19. This sliced portion is cut off to flatten one end surface of the dry ice block, and is discarded when it is delivered to the table 38 installed at the outlet 16 of the conveyor device 11.

The dry ice whose curved end face is cut off in this way is a step before cutting into small pieces.
It is divided into two equal parts from a direction different from the slice end face by 90 degrees. That is, the dry ice whose one end is cut off and flattened is returned to the inlet portion 15 of the conveyor device 11 again,
The side guards 18 and 19 are reset to match the halving thickness of the dry ice that separates the distances from the circular saws 29 and 30, and then this dry ice is set again.
It is placed on Nos. 2 and 13, transported, and cut. The dry ice thus cut into two equal parts is cut into a plurality of small pieces having a predetermined thickness with the flat end face side as a reference surface by another cutting device.

The dry ice cutting device 10 of this embodiment can cut dry ice into arbitrary different dimensional thicknesses or evenly by adjusting the positions of the side guard portions 18 and 19 as described above. However, the maximum thickness to be cut at that time is almost equal to the width of the wide endless carrier 12. This is because the side guard parts 18 and 19 do not move outward beyond the outer positions of the respective endless carriers 12 and 13. Then, only dry ice having a thickness equal to the distance between the outermost position of the side guard portion 18 and the circular saws 29, 30 can be cut into arbitrary different dimensional thicknesses.

[0021]

As described above, according to the dry ice cutting device of the present invention, two endless carriers are arranged in parallel at a distance, and the dry ice block of the circular saw divided into two is cut. Cutting loss is reduced by installing a lower circular saw that cuts in the lower side in that interval and further providing a side guard part that can reciprocate from that position to the inside on the outside of each endless carrier. The amount of chips is small, and the end surface of the dry ice block can be sliced and cut off automatically or cut into a predetermined size, which contributes not only to improving work efficiency but also to safety and labor reduction of the work. You can

[Brief description of drawings]

FIG. 1 is a plan view showing a dry ice cutting device according to an embodiment of the present invention.

2 is a front view of the dry ice cutting device shown in FIG. 1. FIG.

FIG. 3 is a side view of the dry ice cutting device shown in FIG.

4 is a configuration explanatory view schematically showing an arrangement state of two circular saws in the dry ice cutting device shown in FIG.

[Explanation of symbols]

 10 Dry Ice Cutting Device 11 Conveyor Device 12 Endless Carrier 12a Strip Support Plate 13 Endless Carrier 13a Strip Carrier 14 Spacer 17 Motor 18 Side Guard 19 Side Guard 29 Lower Circular Saw 30 Upper Circular Saw

Claims (1)

[Claims] 1. A conveyor device comprising two endless carriers arranged in parallel at a distance, and a conveyor device which is arranged at a gap between the endless carriers and a part of which is located on a carrier support surface of the endless carriers. A first circular saw projecting upward, a second circular saw arranged in the same vertical plane as the first circular saw and above the transport support surface of the endless transport body, and each of the conveyor devices. Each endless of the conveyor device includes a side guard portion that is disposed on both outer sides of the endless carrier and is capable of reciprocating inward.
The carrier is made up of many strips arranged in parallel along the carrying direction.
A circular support plate, the first circular saw and the second circular saw,
The rotation center positions of the second circular saws are displaced from each other in the conveying direction of the conveyor device , and the height of the uppermost end of the first circular saw from the conveying support surface of the endless conveying body is h _1. When the height of the lowermost part from the transport support surface is h ₂ , then h ₁ ≧ h ₂ and the loaded dryer is
For each chair, cut from the top to the bottom
The dry ice cutting device is characterized in that