JP2002224633A - Apparatus for cleaning metallic mold, etc., and apparatus for jetting dry ice - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an apparatus for cleaning a metallic mold, etc., and a dry ice jetting apparatus in which the metallic mold can be cleaned without being removed from a molding machine by jetting dry ice which the jetting dry ice is slid and rotated in the back-and-forth direction. SOLUTION: This dry ice jetting apparatus is constituted of a support mounted on a movable truck, a dry ice supplying pipe which is fit to the support to be slid in the back-and-forth direction and the tip part of which can be inserted into the opened metallic mold, etc., a nozzle connected to the tip part of the dry ice supplying pipe while a joint rotatable in the back-and-forth direction in the opened metallic mold, etc., is interposed and a nozzle rotating mechanism for rotating the nozzle in the back-and-forth direction by the operation of an operation lever arranged at the position close to the rear end of the dry ice supplying pipe. The apparatus for cleaning the metallic mold, etc., is constituted of the dry ice jetting apparatus and a dry ice supplying unit for supplying dry ice to the dry ice supplying pipe of the dry ice jetting apparatus so that the dry ice can be jetted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device for a mold and the like for cleaning a mold and the like by injecting dry ice and a dry ice injection device.

[0002]

2. Description of the Related Art Conventionally, when cleaning a mold or the like by injecting dry ice, a mold is removed from a molding machine because a dry ice injecting device for injecting a dry ice forward is used. ing.

[0003]

The conventional dry ice injection device injects dry ice forward to the distal end of the dry ice supply pipe. Therefore, when cleaning the mold, the molding unit is mounted on the molding machine. Can not spray dry ice,
Unless it is removed from the molding machine, it cannot be cleaned by spraying dry ice, it takes time and effort, and there is a drawback that the operating rate of the molding machine is reduced.

The present invention has been made in view of the above-mentioned conventional drawbacks,
A cleaning device such as a mold and a dry ice sprayer that can clean the mold without removing it from the molding machine, slide the spray dry ice in the front-rear direction, and spray while rotating in the front-rear direction. It is intended to provide a device.

The foregoing and other objects and novel features of the invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings. However, the drawings are merely for explanation and do not limit the technical scope of the present invention.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a support base mounted on a movable carriage, and a front end slidably mounted on the support base in a front-rear direction. A dry ice supply pipe that can be inserted into a mold or the like, a nozzle connected to a distal end of the dry ice supply pipe via a joint that can rotate in the front-rear direction in an open mold or the like, and A dry ice ejector comprising a nozzle rotating mechanism for rotating a nozzle in the front-rear direction by operating an operation lever attached to a portion near the rear end of the dry ice supply pipe; and dry ice of the dry ice ejector. A dry ice supply device that supplies dry ice to the supply pipe so as to be able to jet the dry ice constitutes a cleaning device such as a mold.

According to the present invention, there is provided a supporting base mounted on a movable carriage, and a dry ice supply capable of inserting a tip mounted on the supporting base so as to be slidable in the front-rear direction into an open mold or the like. A pipe, a nozzle connected to a distal end of the dry ice supply pipe via a joint rotatable in a front-rear direction in a mold or the like in an open state, and a nozzle close to a rear end of the dry ice supply pipe. And a nozzle rotation mechanism that rotates in the front-rear direction by operating an operation lever attached to the portion of the dry ice, constitutes a dry ice injection device.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings.

In the first embodiment of the present invention shown in FIGS. 1 to 8, reference numeral 1 denotes a mold of the present invention which can clean a mold 3 attached to a molding machine 2 with the mold opened. The cleaning device 1 such as a mold includes a dry ice supply device 4 for supplying dry ice in a sprayed state, and a dry ice supplied by the dry ice supply device 4 to the molding surface of the mold 3. And a dry ice injection device 5 that performs the drying operation.

The dry ice supply device 4 is housed in an air compressor 6, a supply hose 8 connected to a compressed air outlet 7 of the air compressor 6, and a tank 9 interposed in the supply hose 8. It comprises a rotary valve 12 driven by a low-speed motor 11 and a dry ice discharging device 13 for discharging the dry ice 10 into a supply hose 8.

The dry ice spraying device 5 includes a movable carriage 15 having four wheels 14, 14, 14, 14 attached to the bottom surface thereof, and a carriage 15 attached to the bottom surface of the carriage 15 attached to the floor surface. Four supporting legs 17, 17, 17, 17 using screw rod supporting shafts 16, 16, 16, 16, which can be fixed so that the height can be adjusted, and the cart 15 via a height adjusting mechanism 18. The support table 20 fixed to the base plate 19 attached to the support table 20 and the support tube 20b fixed to the support frame 20a fixed to the support table 20 are open at their distal ends slidably mounted in the front-rear direction. And a dry ice supply pipe 22 having an open / close valve 21 whose rear end is connected to the supply hose 8 of the dry ice supply device 4. Front to tip A nozzle 24 connected via a swivel joint or a joint 23 whose inner wall surface is mirror-finished, which can be rotated in the front-rear direction in the open mold 3 or the like, and this nozzle 24 is connected to the rear end of the dry ice supply pipe 22. A nozzle rotating mechanism 26 is configured to rotate in the front-rear direction by operating the operation lever 25 attached to the part near the part so as to be rotatable in the front-rear direction. The dry ice supply pipe 22 is fixed to the support frame 20a, and the support frame 20a is attached to the support base 20 or the base plate 19 so as to be slidable in the front-rear direction. May be prevented.

The nozzle rotating mechanism 26 is fixed to the upper central portion or both side surfaces of the dry ice supply pipe 22. In the embodiment of the present invention, the nozzle rotating mechanism 26 is rotatable by a pivot pin 28 to a support piece 27 fixed to the upper central portion. A pair of arms 29, 29, a fixed shaft 31 having a screw hole 30 formed and fixed to the free ends of the pair of arms 29, 29, substantially at the center of the pair of arms 29, 29. A support shaft 32 pivotally supported, a lock piece 33 fixed to the support shaft 32 and a screw hole 30 of the fixed shaft 31 are screwed together to lock and unlock the lock piece 33. An operating lever 25 comprising an operating lever body 35 having a knob 34 at an upper portion, and a lock having one end fixed to a support shaft 32 of the operating lever 25 and the other end rotatably supported by the nozzle 24. It is composed of a 36.

When cleaning the mold 3, the cleaning device 1 for a mold or the like having the above-mentioned structure opens the mold 3 attached to the molding machine 2 and sets the nozzle 24 of the dry ice injection device 5 to the open state.
The position of the carriage 15 and the height adjusting mechanism 18 are adjusted so that is positioned in the mold 3. Thereafter, the pellet-shaped dry ice 10 is supplied into the tank 9 of the dry ice discharge device 13 of the dry ice supply device 4, and the dry ice supply pipe 2 is supplied.
By opening the on-off valve 21 and driving the low-speed motor 11 to the dry ice discharging device 13 to rotate the rotary valve 12, the dry ice 10 in the form of pellets was mixed with the compressed air from the air compressor 6. In this state, it is ejected from the nozzle 24. The pellet-shaped dry ice 10 injected from the nozzle 24 is
The dry ice supply pipe 22 is slid in the front-rear direction, and the operation lever 25 is operated in the front-rear direction, so that the nozzle 24 is rotated in the front-rear direction to reliably spray the cleaning surface of the mold 3 for cleaning. be able to.

[0014]

Next, different embodiments of the present invention shown in FIGS. 9 to 17 will be described. In addition,
In the description of the different embodiments of the present invention, the same components as those in the first embodiment of the present invention will be denoted by the same reference numerals, and redundant description will be omitted.

The second embodiment of the present invention shown in FIGS. 9 to 11 differs from the first embodiment of the present invention mainly in that the liquefied carbon dioxide supplied from the liquefied carbon dioxide tank 37 is used. A pelletizer 38 for producing pellet-shaped dry ice, and a hopper 39 to which the pellet-shaped dry ice formed by the pelletizer 38 is supplied.
A dry ice supply comprising a feeder 40 to which pellet-shaped dry ice of the hopper 39 is supplied, and a high-pressure air supply pipe 42 in which a dryer 41 for supplying high-pressure air from the air compressor 6 to the feeder 40 is provided. In terms of using the apparatus 4A, the same operation and effect as those of the first embodiment of the present invention can be obtained even in the cleaning apparatus 1A such as a mold constituted by using such a dry ice supply apparatus 4A. .

In the third embodiment of the present invention shown in FIGS. 12 to 14, the main difference from the first embodiment of the present invention is that the dry ice supply pipe 22 is provided at the rear end. Passage 4 opening to orifice portion 43a of connection pipe 43
4 uses a dry ice supply device 4B connected to a supply hose 8A capable of sucking dry ice 10 from a tank 9 in which pellet-shaped dry ice 10 is stored, and is configured using such a dry ice supply device 4B. The same effect as that of the first embodiment of the present invention can be obtained in the cleaning device 1B for a mold or the like. In the embodiment of the present invention, the connection pipe 43 of the dry ice supply device 4B may be arranged near the nozzle 24 of the dry ice supply pipe 22 to prevent the blast power from being reduced as much as possible.

The fourth embodiment of the present invention shown in FIGS. 15 to 17 is mainly different from the first embodiment of the present invention in that a dry ice supply pipe 22 is
A cleaning device 1C such as a mold constituted by using such a dry ice injection device 5A in that a dry ice injection device 5A mounted via a rotating mechanism 45 so that the axis is centered is used. However, the same operation and effect as those of the first embodiment of the present invention can be obtained, and the dry ice is sprayed while the nozzle 24 is slid in the front-rear direction, rotated in the front-rear direction, and rotated in the outer peripheral direction. Cleaning work can be performed. The rotation mechanism 45 includes a rotation cylinder 47 having an operation arm 46 rotatably attached to the support base 20, a guide groove 48 formed in the rotation cylinder 47 in the axial direction, and An engaging pin 49 is formed on the outer periphery of the dry ice supply pipe 22 slidably mounted in the rotating cylinder 47 and engages with the guide groove 48 so as to be slidable.

In each of the embodiments of the present invention described above, the nozzle rotating mechanism 26 and the like are manually operated. However, the present invention is not limited to this, and the nozzle rotating mechanism 26 may be automatically operated. .

[0019]

As is clear from the above description, the following effects can be obtained in the present invention.

(1) A support base attached to a movable carriage, and a dry ice supply pipe capable of inserting a tip mounted on the support base so as to be slidable in the front-rear direction into a mold in an open state or the like. A nozzle connected to a distal end of the dry ice supply pipe via a joint rotatable in the front-rear direction in an open mold or the like, and a part near the rear end of the dry ice supply pipe. A dry ice spraying device comprising a nozzle rotating mechanism for rotating the nozzle in the front-rear direction by operating an operation lever attached to the device, and dry ice for supplying dry ice to the dry ice supply pipe of the dry ice spraying device so as to be able to spray the dry ice. Since it is configured with a supply device, the dry ice supply pipe can be slid in the front-rear direction, and the nozzle is rotated in the front-rear direction. Door can be. Therefore, since the dry ice can be slid in the front-rear direction from the nozzle and can be sprayed while rotating in the front-rear direction, the dry ice can be sprayed on the concave inner wall surfaces and corners other than the flat surface to be cleaned. .

(2) According to the above (1), the nozzle can be rotated in the front-rear direction by the operation lever attached to the portion near the rear end of the dry ice supply pipe, so that the nozzle can be safely turned in the front-rear direction. The operation can be performed, and the operation can be performed safely away from the cleaning unit.

(3) According to the above (1), since it is mounted on a movable cart, it can be easily moved to a place of use and used.

(4) According to the above (1), the nozzle can be used by moving it in the front-rear direction and rotating it in the front-rear direction, so that the mold of the molding machine can be cleaned without opening the mold without removing it from the molding machine. Thus, the cleaning operation can be efficiently performed in a short time.

(5) Claims 2, 3, and 4 also have the above (1) to (4).
The same effect as (4) can be obtained.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of a dry ice supply device according to the first embodiment of the present invention.

FIG. 3 is a side view of the dry ice injection device according to the first embodiment of the present invention.

FIG. 4 is a plan view of the dry ice injection device according to the first embodiment of the present invention.

FIG. 5 is a front view of the dry ice injection device according to the first embodiment of the present invention.

FIG. 6 is a sectional view taken along the line 6-6 in FIG. 3;

FIG. 7 is an explanatory diagram of a nozzle rotating mechanism according to the first embodiment of the present invention.

FIG. 8 is an explanatory diagram of a use state of the first embodiment of the present invention.

FIG. 9 is an explanatory view of a second embodiment of the present invention.

FIG. 10 is an explanatory diagram of a dry ice supply device according to a second embodiment of the present invention.

FIG. 11 is an explanatory diagram of a use state according to the second embodiment of the present invention.

FIG. 12 is an explanatory diagram of a third embodiment of the present invention.

FIG. 13 is an explanatory diagram of a dry ice supply device according to a third embodiment of the present invention.

FIG. 14 is an explanatory diagram of a use state according to the third embodiment of the present invention.

FIG. 15 is an explanatory diagram of a fourth embodiment of the present invention.

FIG. 16 is a side view of a dry ice injection device according to a fourth embodiment of the present invention.

FIG. 17 is an enlarged sectional view taken along line 17-17 in FIG. 15;

[Explanation of symbols]

1, 1A, 1B, 1C: Cleaning device for molds, etc. 2: Molding machine 3: Molds, 4, 4A, 4B: Dry ice supply device, 5, 5A: Dry ice injection device, 6:
Air compressor, 7: compressed air outlet, 8,
8A: supply hose, 9: tank, 10: dry ice, 11: low speed motor, 12: rotary valve, 13: dry ice discharger, 14: wheels,
15: trolley, 16: support shaft, 1
7: support leg, 18: height adjustment mechanism, 19: base plate, 2
0: support base, 21: open / close valve, 22: dry ice supply pipe, 23: joint, 24: nozzle,
25: operation lever, 26: nozzle rotating mechanism, 2
7: support piece, 28: pivot pin, 29: arm, 30: screw hole, 31: fixed shaft,
32: support shaft, 33: lock piece, 34: knob, 35: operating lever body, 36: rod, 37: liquefied carbon dioxide tank, 38: pelletizer, 39: hopper, 40: feeder, 41: dryer,
42: high-pressure air supply pipe, 43: orifice, 44: passage, 45: rotating mechanism, 46: operation arm,
47: rotating cylinder, 48: guide groove, 49:
Engagement pin.

Claims (4)

[Claims] 1. A support mounted on a movable carriage,
A dry ice supply pipe which can be inserted into an open mold or the like with a tip mounted on the support base so as to be slidable in the front-rear direction. A nozzle connected via a joint rotatable in the front-rear direction, etc., and a nozzle for turning the nozzle in the front-rear direction by operating an operation lever attached to a portion near the rear end of the dry ice supply pipe A cleaning device for a mold or the like, comprising: a dry ice injection device including a rotating mechanism; and a dry ice supply device that supplies dry ice to a dry ice supply pipe of the dry ice injection device so that the dry ice can be injected. . 2. A support base attached to a movable carriage,
A dry ice supply pipe that can be inserted into a mold or the like in an open state with a tip mounted on the support base so as to be slidable in the front-rear and left-right directions. A nozzle connected via a joint rotatable in the front-back direction in a mold or the like, and this nozzle is turned back-and-forth by operation of an operation lever attached to a portion near the rear end of the dry ice supply pipe. A dry ice injection device comprising a nozzle rotating mechanism for causing the dry ice to be injected into a dry ice supply pipe of the dry ice injection device, and a dry ice supply device for supplying dry ice to the dry ice supply pipe. Cleaning device. 3. A dry ice supply pipe that can be inserted into a mold or the like in an open state with a support mounted on a movable carriage and a tip mounted on the support so as to be slidable in the front-rear direction. And a nozzle connected to a front end of the dry ice supply pipe via a joint rotatable in the front-rear direction in a mold or the like in an open state, and a nozzle near the rear end of the dry ice supply pipe. A dry ice spraying device comprising a nozzle rotating mechanism that rotates in the front-rear direction by operating an operation lever attached to a part. 4. A dry ice supply capable of inserting a support mounted on a movable carriage and a tip mounted on the support so as to be slidable in the front-rear and left-right directions into an open mold or the like. A pipe, a nozzle connected to a distal end of the dry ice supply pipe via a joint rotatable in a front-rear direction in a mold or the like in an open state, and a nozzle close to a rear end of the dry ice supply pipe. And a nozzle rotating mechanism that rotates in the front-rear direction by operating an operation lever attached to the part.