KR20030082821A - Separation and washing device of plaster for lose wax casting - Google Patents

Abstract

PURPOSE: An apparatus for separating and cleaning plaster in lost wax casting process is provided to separate casting from plaster primarily by crushing thus removing plaster for forming casting housing promptly and easily and substantially improve workability by automatically cleaning the separated casting secondly. CONSTITUTION: The apparatus comprises a base frame(10) on which cleaning chamber(11) is formed in such a way that lid(12) is installed at the upper part of the cleaning chamber(11), and in which discharge hole is formed on the bottom of the cleaning chamber; a driving part which is installed at one side of the cleaning chamber(11) and is consisted of motor (M) equipped with speed reducer(21), gear box(22) connected to the speed reducer(21), and high pressure pump connected to water supply line(24); a plaster separation part installed inside the cleaning chamber(11) and consisted of stationary rod(31) axially installed at driving gear (G1) of the gear box(22), parallel stationary rod axially installed with being parallel to the stationary rod(31), supporting roller(33) hinge connected onto the cleaning chamber of the upper part of the both stationary rods, and injection nozzles installed at one side of the cleaning chamber so that the injection nozzles face the both stationary rods; a product bundle stationary part comprising female screw shaft that is a shaft of interlocking gear (G4) engaged with the driving gear (G1), pusher screw equipped with handle(42) exposed to the outside of the cleaning chamber so that the pusher screw is spirally connected to the female screw shaft, and holding member mounted on the tip of the female screw shaft; a cleaning part comprising transfer screw(51) axially installed at interlocking gear (G6) engaged with the driving gear (G1), nozzle body penetratingly installed on the transfer screw, injection nozzle installed on the nozzle body, stopper equipped with handle for selecting transfer and return of the nozzle body, and guiding rod(56) for supporting the nozzle body; and a control part comprising on/off switch(61), timer(62), manometer(63) and pressure control handle(64).

Description

Separation and washing device of plaster for lose wax casting

In the present invention, in the wax wax casting process, which is one of the methods for manufacturing accessories, the cast gypsum forming the cast bar can be quickly and easily crushed to remove the cast from the gypsum. The separated casting relates to a gypsum separation and washing apparatus of the Los Wax casting method, which can greatly improve workability by automatically performing a second full cleaning automatically.

Generally, accessories such as jewelry are manufactured by using the Los Wax casting method, which is a process of manufacturing a model of a product on a mold using wax (paraffin), and various products manufactured by various designs through the respective molds. Planting the wax on the object, putting the planted product bundle into a cylindrical flask and pouring the liquid gypsum to cure the gypsum, dissolving and removing the product bundle including the pole embedded in the plaster by steam heating method. Pour the casting material, which is the true material of the product, into the space from which the wax has been removed, crush the gypsum to separate the gypsum from the casting product, wash the separated casting product, and remove each product from the pole. Separating and poring.

1 shows an embodiment of the state just prior to crushing and removing the gypsum and the casting product during the process.

A cast product bundle 2 including a flask 1 having a plurality of through holes 1a formed on an outer circumferential surface thereof and opening at both ends as shown, and pole poles 2a formed through a space from which wax has been removed from the flask. And it is a structure including a plaster (3) in the curing state wrapped around the casting product bundle (2).

The part of the present invention is to wash the separated cast product bundle together with separating the cast product bundle 2 from the plaster 3 by crushing and removing the plaster 3 in the flask 1.

Looking at the conventional gypsum separation and cleaning method is provided with a washing tank provided with a high-pressure pump, put both hands through the opening hole formed by the rubber gloves on both sides of the washing tank in the flask containing the casting product embedded in the washing tank When holding the flask with both hands and operating the high pressure pump, high pressure injection is made from the spray nozzle in the washing tank, and when the operator adjusts the flask according to the spray angle of the spray nozzle, the gypsum is crushed and removed from the opening of one side of the flask. To separate the cast product from the plaster.

However, this method has caused a number of problems, such as the operator had to monitor the working state through the sight glass at all times by holding and adjusting the flask with both hands, the worker's hands can be exposed to high-pressure injection pressure The worker cannot escape the work place and cannot perform other work until the work is completed. Especially, it is a manual method, which impairs the efficiency and efficiency of the work, such as the separation and cleaning time of the plaster. This was it.

In addition, the cast product of the gypsum separation is complete, there is also a problem that the work process is added to the cleaning process through the following process.

The present invention has been made to solve the above-described conventional problems, the object of the present invention is the separation of the gypsum forming the casting and the cleaning of the separated casting product can be made automatically and at the same time can be used by the operator, The gypsum separation and cleaning time is very fast to improve the workability, and to provide a gypsum separation and cleaning device of the Los Wax casting method that can fundamentally prevent safety accidents.

Gypsum separation and cleaning device of the present invention for achieving the above object drive unit including a drive motor, a gear box connected to the reducer of the motor, a high pressure pump connected to the water supply line; Gypsum separation comprising both mounting rods arranged in the drive gear of the gearbox, support rollers hinged on the washing chamber on both upper mounting rods, and spray nozzles installed on one side of the washing chamber to face both mounting rods. part; A bundle of products including a female screw shaft, which is a shaft of an interlocking gear linked to the drive gear, a handle exposed to the outside of the washing chamber, a pusher screw screwed to the female screw shaft, and a gripper mounted on the tip of the female screw shaft; A feed screw installed in the interlocking gear interlocked with the drive gear, a nozzle body penetratingly installed on the feed screw, an injection nozzle provided on the nozzle body, and a stopper having a handle to select the transfer and return of the nozzle body. Washing unit; And an on / off switch, a timer, a pressure gauge, and a controller including a pressure adjusting handle.

The present invention having the above configuration is mounted on the holding rod of the gypsum separation unit and the gypsum in the rotating flask is quickly crushed and removed by a stream of water sprayed at high pressure, and the separated cast product bundle is mounted on the gripping piece of the washing unit to rotate It is quickly and precisely washed by a high pressure water jet sprayed during transfer, and the gypsum separation and washing are fully automatic to double the work efficiency.

1 is a cross-sectional view of the flask immediately before the gypsum and the cast product separated by crushing and removing the gypsum,

2 is a cross-sectional configuration diagram of the present invention,

3 is a cross-sectional configuration of the present invention,

Figure 4 is a side cross-sectional view of the present invention,

Figure 5 is a schematic perspective view showing a gypsum separation operation of the present invention,

6 is a schematic perspective view showing a washing operation of the present invention.

<Description of Symbols for Main Parts of Drawings>

1: flask 1a: through hole

2: (casting) product bundle 2a: pole

3: gypsum 10: expectation

11: washing room 12: lid

12a: sight glass 13: (washing water)

14: drain pipe 21: reducer

22: gearbox 23: (high pressure) pump

24: water supply line 31,31 ': mounting rod

31a, 31b: mounting roller 32: spacing adjuster

33: support roller 33a: hinge hinge

33b: support string 34,34 ', 53: spray nozzle

41: internal thread 42: (mounting) handle

43: thumb screw 44: grip

51: transfer screw 52: nozzle body

54: (Pressure Adjustment) Handle 55: Stopper

56: guide rod 61: on-off switch

62: timer 63: pressure gauge

71: safety switch 72: crushing

M: (Drive) Motor G1: Drive Gear

G2, G3, G5: Electric gear G4, G6: Interlocking gear

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a front cross-sectional configuration of the present invention, Figure 3 is a flat cross-sectional configuration of the present invention, Figure 4 is a side cross-sectional configuration of the present invention, Figure 5 is a schematic perspective view showing a gypsum separation state of the present invention, Figure 6 Is a schematic perspective view showing a washing state of the present invention.

2 to 4, the gypsum separation and washing apparatus of the present invention includes a base 10 having a washing chamber 11 thereon; A driving unit including a motor (M) having a speed reducer (21), a gear box (22) connected to the speed reducer, and a high pressure pump (23) connected to the water supply line (24) as configured on one side of the washing chamber; It is provided on one side of the washing chamber is provided with a mounting roller (31a) (31b) spaced apart, the mounting rod 31 is built on the drive gear (G1) of the gear box, the mounting roller (31a) (31b) spaced apart A parallel mounting rod 31 'installed on both side gap adjusting holes 32 so as to be arranged in parallel with the mounting rod 31, and on the washing chamber above the two mounting rods 31, 31'. A gypsum separator comprising a support roller 33 hinged and spray nozzles 34 and 34 'installed at one side of the washing chamber so as to face both the mounting rods 31 and 31'; A female screw shaft 41 serving as an axis of the interlocking gear G4 interlocked with the drive gear G1, a handle 42 exposed to the outside of the washing chamber, and a pusher screw 43 screwed to the female screw shaft, and a female screw. Product bundle holder including a gripper 44 is mounted to the tip of the shaft; A transfer screw 51 arranged on the interlocking gear G6 interlocked with the drive gear G1, a nozzle body 52 installed through the transfer screw, a plurality of injection nozzles 53 provided on the nozzle body, A washing unit including a stopper 55 having a handle 54 to select the transfer and return of the nozzle body, and a guide rod 56 supporting the nozzle body; A control unit including an on-off switch 61, a timer 62, a pressure gauge 63, and a pressure adjusting handle 64, which is configured on the base; And a safety switch (71) installed on one side wall of the washing type so as to be turned on and off by opening and closing of the lid (12), and a safety switch unit including a pressing piece (72) installed on the lid to turn the safety switch on and off. Is done.

The lid 12 having the see-through window 12a is hingedly installed in the washing chamber 11, and the outlet 13 of the separated gypsum and washing water is formed at the bottom of the washing chamber, and the drain pipe 14 is disposed at the outlet 13. ) Is connected.

The support roller 33 includes a hinge rod 33a hinged to the washing chamber so as to operate according to opening and closing of the lid 12, and a support strap 33b for supporting the hinge rod on the lid.

The drive gear (G1), the interlocking gear (G4) (G6), the electric gear (G2) (G3) (G5) constituting the gear box 22 is preferably made of a ceramic material so as not to deform or rust. Instead of deleting (G2) (G3) and (G5), the drive gear (G1) and the interlocking gear (G4) (G6) may be directly connected by using a chain or a belt.

The effect of this invention of the said structure is demonstrated.

As shown in FIG. 1, after dissolving and removing a bundle of wax products including wax poles embedded in gypsum by a steam heating method, a flask, in which the casting material is poured into a space where wax is removed, is cured (1) Is provided, a process of washing the separated casting product bundle 2 together with separating the gypsum 3 in the flask to be achieved by the present invention is carried out.

That is, the lid 12 is opened, and the flask 1 is placed on both holding rollers 31a and 31b of both holding rods 31 and 31 '.

At this time, in consideration of the size of the flask (1) to adjust the position of the mounting roller (31b) on one side or move the mounting rod (31 ') on the gap adjuster (32) to position and then lift the lid 12 closed state The supporting roller 33 is lowered and placed on the mounted flask 1 to stably support the flask 1.

In this state, when the on-off switch 61 is turned on after setting the desired time and injection pressure by operating the timer 62 and the pressure regulating handle 64, the motor M and the pump 23 are operated. The operation of M rotates the gears G1 to G6 in the gearbox 22 via the reduction gear 21, and the operation of the pump 23 is performed by the high pressure injection nozzles 34, 34 ', 53 through the injection nozzles. Spray water.

The fixed spray nozzle 34 maintains a fixed spray angle toward the flask and the adjustable spray nozzle 34 'can freely adjust the desired spray angle.

Accordingly, the plaster 3 of the flask 1 that is mounted on the mounting rods 31 and 31 ′ and rotates is crushed and removed by a stream of high pressure and high pressure, and the removed plaster is contained in the sprayed water to wash the chamber. It is discharged to the outside through the discharge hole 13 formed in the bottom.

The injection pressure can be adjusted to 0 ~ 250㎏ / ㎠ in consideration of the characteristics of the product, so that the casting product bundle 2 can be separated from the flask 1 through a rapid time that takes several tens of seconds (about 30 seconds). .

When the set time is completed or the lid 12 is opened, the machine is automatically stopped, and the cast product bundle 2 separated from the flask 1 is removed from the washing chamber. It is mounted on the gripping holes 44 of the product bundle holder for cleaning and a new flask is mounted on the holder rods 31 and 31 '.

That is, when the protruding end of the pole pole 2a is inserted into the gripper 44 and the handle 42 is turned, the push rod screw 43 is moved through the female screw shaft 41 to fix the pole pole 2a.

In this state, when the motor M and the pump 23 are operated after the lid 12 is closed, gypsum separation 44 is performed at the same time as the gypsum separation from the new flask 1 on the mounting rods 31 and 31 '. Cleaning of the casting product bundle (2) mounted on the) is performed.

That is, in the state where the casting product bundle 2 is rotated, the nozzle body 52 is moved along the transfer screw 51 and precision washing of the product bundle is carried out by the high pressure water stream sprayed through the injection nozzle 53 mounted thereto. It is done quickly.

When the cleaning is completed by the forward movement of the nozzle body 52 is completed, the handle 54 is turned to release the stopper 55 from the transfer screw 51 to return the nozzle body 52 to the initial position.

This gypsum separation and cleaning operation is performed continuously.

In addition, despite the characteristics of using a pump and a jet nozzle that generates a pressure up to 250㎏ / ㎠, if the lid is open, the machine does not operate to ensure the safety of the operator.

Meanwhile, the washing water including the gypsum discharged through the drain pipe 14 is precipitated through the settling tank and the supernatant water is circulated and reused through the pump.

As described above, the gypsum separation and washing apparatus of the loss wax casting method of the present invention includes a drive unit including a motor and a pump; A gypsum separator configured at one side of the washing room; A washing unit including a product bundle holder configured in parallel with the gypsum separator; And a control unit for controlling time and injection pressure; the separation of gypsum forming the casting foundry and the cleaning of the separated casting product can be made automatically and simultaneously, thus enabling the operator to utilize time, and separating and cleaning time. This can be done very quickly, improving workability, and fundamentally preventing work accidents.

Although the invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made within the spirit and scope of the invention, and such changes or modifications are consequently claimed. It will have to belong to the scope of.

Claims (4)

A base 10 having a washing chamber 11 having a lid 12 formed thereon and a discharge hole 13 formed at the bottom of the washing chamber; A driving unit including a motor (M) having a speed reducer (21), a gear box (22) connected to the speed reducer, and a high pressure pump (23) connected to the water supply line (24) as configured on one side of the washing chamber; As configured in the washing chamber, the mounting rod 31 arranged in the drive gear G1 of the gear box, the parallel mounting rod 31 'arranged in parallel with the mounting rod 31, the both mounting rods 31 (31 ') the support roller 33 hinged on the upper washing chamber, and the spray nozzles 34, 34' installed on one side of the washing chamber to face the two rods 31, 31 '. Gypsum separator comprising; A female screw shaft 41 serving as an axis of the interlocking gear G4 interlocked with the drive gear G1, a handle 42 exposed to the outside of the washing chamber, and a pusher screw 43 screwed to the female screw shaft, and a female screw. Product bundle holder including a gripper 44 is mounted to the tip of the shaft; The transfer screw 51 arranged in the interlocking gear G6 interlocked with the drive gear G1, the nozzle body 52 penetratingly installed on the transfer screw, the injection nozzle 53 installed on the nozzle body, and the nozzle body. A stopper (55) having a handle (54) to select the transfer and return of the cleaning part including a guide rod (56) for supporting the nozzle body; And Gypsum separation and washing apparatus of the Los Wax casting method, characterized in that consisting of; control unit comprising an on-off switch (61), a timer (62), a pressure gauge (63), a pressure adjusting handle (64). According to claim 1, wherein the safety switch 71 is installed on one side wall of the washing type to be turned on and off by the opening and closing of the lid 12, and includes a pressing piece 72 is installed on the lid to turn on and off the safety switch Gypsum separation and cleaning device of the Los Wax casting method, characterized in that the safety switch is configured. According to claim 1, wherein the support roller 33 is a hinge between the hinge (33a) installed in the washing chamber to operate in accordance with the opening and closing of the lid 12, and a support strap (33b) for supporting the hinge between the lid Gypsum separation and washing apparatus of the lost wax casting method characterized in that the configuration. The mounting rods 31a and 31b are spaced apart from each other on the mounting rods 31 and 31 ', and the mounting rods 31' are mounted on the gap adjusting holes 32 on both sides. Gypsum separation and cleaning device of the Los Wax casting method characterized in that.