Cleaning barrel for large thin-wall wax mould

Abstract

The invention discloses a cleaning barrel for a large thin-wall wax mold, and belongs to the technical field of investment casting equipment. The technical problem that when an existing cleaning device is used for cleaning a large thin-wall wax mold, the wax mold is prone to fragmentation or deformation is solved. The cleaning barrel for the large thin-wall wax mould comprises a cleaning barrel body, a filtering device and a circulating device, the cleaning barrel body comprises a main barrel body and an auxiliary barrel body; the bottoms of the main barrel body and the auxiliary barrel body are connected through a circulating device, and an overflow port is formed in the interface of the upper ends of the main barrel body and the auxiliary barrel body; the filtering device is arranged above the auxiliary barrel body and is positioned at the overflow port; cleaning liquid in the main barrel body flows into the filtering device through the overflow opening, and flows into the auxiliary barrel body after being filtered. According to the wax mold cleaning device, efficient and high-quality automatic flexible cleaning of the wax mold can be achieved, and fragmentation or deformation of the wax mold is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of investment casting equipment, in particular to a cleaning barrel for large thin-wall wax molds. Background Art

[0002] In the field of investment casting, cleaning of wax molds is a key link. The purpose of cleaning is to remove wax scraps on the surface of the wax mold (degreasing treatment). At present, wax molds are generally cleaned manually, and the wax tree is manually immersed in the cleaning pool and shaken up and down. Not only is the process cumbersome and inefficient, but it also greatly increases the labor intensity of workers.

[0003] Existing wax model cleaning machines have design deficiencies. The main problem is that they lack a structure that can effectively promote the tumbling and stirring of the cleaning liquid, which limits their cleaning effect to a certain extent. In addition, although some automatic wax model cleaning devices are equipped with ultrasonic vibrators to enhance the cleaning effect, due to the relatively fragile structure of thin-walled wax models, the use of ultrasonic vibration cleaning methods may cause problems such as chipping or deformation of the wax models, so they are not suitable for such wax models. Therefore, it is necessary to develop a new type of cleaning equipment suitable for thin-walled wax models, which is designed to significantly reduce manpower requirements and significantly improve cleaning efficiency and quality. Summary of the invention

[0004] In view of the above analysis, the present invention aims to provide a cleaning bucket for large thin-walled wax models, so as to solve the technical problem that the wax models are easily broken or deformed when the existing cleaning devices are used to clean large thin-walled wax models.

[0005] The purpose of the present invention is mainly achieved through the following technical solutions:

[0006] The present invention provides a cleaning barrel for large thin-wall wax models, the cleaning barrel comprising a cleaning barrel body (100), a filtering device and a circulation device; the cleaning barrel body (100) comprises a main barrel body (101) and an auxiliary barrel body (102); the main barrel body (101) and the auxiliary barrel body (102) are arranged adjacent to each other and the bottoms of the main barrel body (101) and the auxiliary barrel body (102) are connected by a circulation device, and an overflow port (111) is provided at the upper interface of the main barrel body (101); the filtering device is arranged above the auxiliary barrel body (102) and is located at the overflow port (111); the cleaning liquid in the main barrel body (101) flows into the filtering device through the overflow port (111), and flows into the auxiliary barrel body (102) after filtering treatment.

[0007] In a possible design, the circulation device includes a circulation pump (106), a water inlet pipe (107) and a water return pipe (108);

[0008] A first water inlet pipe interface (109) is provided at the bottom of the main barrel body (101), and a second water inlet pipe interface (110) is provided at the bottom of the auxiliary barrel body (102); a circulation pump (106) is connected to the main barrel body (101) via a return pipe (108) connected to the first water inlet pipe interface (109), and a circulation pump (106) is connected to the auxiliary barrel body (102) via a water inlet pipe (107) connected to the second water inlet pipe interface (110).

[0009] In one possible design, the filtering device of the present invention includes a filtering tank (112);

[0010] A multi-stage filtering structure (113) is provided in the filtering tank (112), and the multi-stage filtering structure (113) is used to filter out wax scraps in the cleaning liquid.

[0011] In a possible design, the multi-stage filtration structure (113) comprises, from top to bottom, a primary filtration layer, a secondary filtration layer and a fine filtration layer.

[0012] In a possible design, the primary filter layer, the intermediate filter layer and the fine filter layer use different filter materials.

[0013] In one possible design, the primary filter layer uses large-particle activated carbon; the intermediate filter layer uses medium-sized ceramic particles; and the fine filter layer uses high-density filter cotton.

[0014] In a possible design, the thicknesses of the primary filter layer, the intermediate filter layer and the fine filter layer decrease in sequence.

[0015] The large thin-wall wax model cleaning bucket also includes a compressed air supply unit;

[0016] A bubbling device is provided in the main barrel body (101) of the cleaning barrel body (100); the bubbling device is a double-circle jet ring; a compressed air inlet (104) is provided at the bottom of the double-circle jet ring (103), and the compressed air inlet (104) is connected to a compressed air supply unit through a compressed air inlet pipe (105).

[0017] In a possible design, the double-ring jet ring (103) includes an inner-ring jet ring and an outer-ring jet ring;

[0018] The outer jet ring is sleeved on the outer side of the inner jet ring, and the two are arranged concentrically; the diameter of the double jet ring (103) matches the diameter of the barrel; a plurality of ventilation pipes are arranged between the outer jet ring and the inner jet ring; jet nozzles (302) are evenly distributed on the outer jet ring and the inner jet ring; and the compressed air inlet (104) is arranged at the bottom of the outer jet ring.

[0019] The present invention also provides a wax model cleaning system, comprising the above-mentioned cleaning barrel; further comprising a manipulator, a rinsing unit and a drying unit; the cleaning barrel, the rinsing unit and the drying unit are all arranged in an equal-radius ring with the manipulator as the center.

[0020] A wax model automatic cleaning method adopts the wax model cleaning system mentioned above.

[0021] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0022] (1) The bubbling device of the present invention can use compressed gas to boil and stir the cleaning liquid. The bubbles generated are relatively soft and will not cause the wax model to break or deform. The circulation device can ensure that the cleaning liquid always remains in a clean state. The combination of the two can ensure that the wax model is cleaned without dead corners and dirt residue, and the cleaning cleanliness is high.

[0023] (2) The present invention ensures that the bubbles generated in the main barrel are more uniform by configuring the bubbling device to be a double-circle jet ring structure, thereby being able to fully boil and stir the cleaning liquid, thereby achieving wax mold cleaning or rinsing without dead ends.

[0024] (3) The filtering device of the present invention adopts a multi-stage filtering structure, which is composed of a primary filtering layer, an intermediate filtering layer and a fine filtering layer from top to bottom; each filtering layer adopts a different filtering material; the primary filtering layer adopts large-particle activated carbon to intercept larger suspended matter and impurities; the intermediate filtering layer uses medium-sized ceramic particles to further remove tiny particles and organic matter in the water; the fine filtering layer adopts high-density filter cotton to filter out tiny particles and bacteria in the water to ensure water purification.

[0025] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the embodiments of the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0027] Figure 1 The general layout diagram of the wax pattern cleaning system of the present invention;

[0028] Figure 2 This is a schematic diagram of the cleaning barrel structure of the present invention, which shows a cross-sectional view of the bubbling device in the barrel;

[0029] Figure 3 It is a side view of the cleaning bucket of the present invention;

[0030] Figure 4 It is an exploded schematic diagram of the cleaning barrel filter tank and filter material of the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of the rinse barrel of the present invention, which shows a cross-sectional view of the bubbling device in the barrel;

[0032] Figure 6 It is a schematic diagram of the structure of the blow-drying barrel of the present invention;

[0033] Figure 7 This is a schematic diagram of the barrel body structure of the blow-drying barrel of the present invention (the barrel wall is hidden).

[0034] Reference numerals:

[0035] 000-manipulator; 100-washing bucket; 200-rinsing bucket; 300-drying bucket; 101-main barrel; 102-auxiliary barrel; 103-double-ring jet ring; 104-compressed air inlet; 105-inlet pipe; 106-circulating pump; 107-water inlet pipe; 108-return pipe; 109-first water inlet pipe interface; 110-second water inlet pipe interface; 111-overflow port; 112-filter tank; 113-multi-stage filter structure; 114-auxiliary barrel liquid level pipe; 2 01-rinsing bucket body; 202-rinsing bucket double-circle jet ring; 203-jet ring air inlet; 204-air inlet pipe; 205-rinsing liquid drain outlet; 206-rinsing bucket liquid level pipe; 301-bottom jet pipe; 302-jet nozzle; 303-nozzle air inlet; 304-air knife; 305-threaded elbow joint; 306-connecting air pipe; 307-square air storage pipe; 308-straight joint; 309-first air inlet; 310-second air inlet; 311-blow-drying bucket body. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0037] The present invention provides a cleaning barrel for large thin-walled wax models, which is mainly used for cleaning large complex thin-walled wax models with a wax model thickness of 0.5mm-2mm; the cleaning barrel for large thin-walled wax models comprises a cleaning barrel body 100, a filtering device and a circulating device; the cleaning barrel body 100 comprises a main barrel body 101 and an auxiliary barrel body 102; the main barrel body 101 and the auxiliary barrel body 102 are arranged adjacent to each other and the bottoms of the two are connected by a circulating device, and an overflow port 111 is provided at the upper interface of the two; the filtering device is arranged above the auxiliary barrel body 102 and is located at the overflow port 111; the cleaning liquid in the main barrel body 101 flows into the filtering device through the overflow port 111, and flows into the auxiliary barrel body 102 after filtering treatment.

[0038] Specifically, the function of the cleaning barrel body 100 of the present invention is to clean the wax scraps and release agent on the wax model; during the cleaning process, the wax scraps on the surface of the wax model will be mixed into the cleaning liquid and float on the surface of the cleaning liquid, affecting the subsequent cleaning effect. The cleaning liquid needs to be cleaned in time. The present invention uses a circulation device to filter and recycle the cleaning liquid. Therefore, the cleaning barrel body 100 of the present invention is designed as a main barrel body 101 and an auxiliary barrel body 102. The main barrel body 101 and the auxiliary barrel body 102 are provided with a filtering device at the upper end, and the two are connected with a circulation device at the lower end.

[0039] The present invention can realize filtering and recycling of the cleaning liquid by arranging a filtering device and a circulating device.

[0040] In order to realize the circulation of the above cleaning liquid, Figure 2 and Figure 3 As shown, the circulation device of the present invention includes a circulation pump 106, a water inlet pipe 107 and a return pipe 108; a first water inlet pipe interface 109 is provided at the bottom of the main barrel body 101, and a second water inlet pipe interface 110 is provided at the bottom of the auxiliary barrel body 102; the circulation pump 106 is connected to the main barrel body 101 through the return pipe 108 connected to the first water inlet pipe interface 109, and the circulation pump 106 is connected to the auxiliary barrel body 102 through the water inlet pipe 107 connected to the second water inlet pipe interface 110.

[0041] Specifically, the circulation device is used to realize the recycling of cleaning liquid. When the robot 000 grabs the wax model and enters the main barrel body 101 of the cleaning barrel body 100, the robot 000 will drive the wax model to rotate and move to achieve a complete cleaning effect; after cleaning, wax scraps on the surface of the wax model will be mixed into the cleaning liquid, and the surface of the cleaning liquid floating in the main barrel body 101 will affect the subsequent cleaning effect. According to the pre-designed liquid level standard, after the wax mold is immersed, the cleaning liquid in the main barrel body 101 can just overflow into the auxiliary barrel body 102 through the overflow port 111 at the interface between the main barrel body 101 and the auxiliary barrel body 102. A filtering device is provided above the auxiliary barrel body 102, and the filtering device is used to filter the residue in the cleaning liquid overflowing from the main barrel body 101. The clean cleaning liquid after filtration flows into the auxiliary barrel body 102. Since the bottom of the auxiliary barrel body 102 and the bottom of the main barrel body 101 are connected by the circulating pump 106, the water inlet pipe 107 and the return pipe 108, the clean cleaning liquid can be sent back to the main barrel body 101 again, and finally the circulating filtration of the cleaning liquid is realized.

[0042] Compared with the prior art, the present invention can timely remove impurities in the cleaning liquid by setting a filtering device to ensure that the cleaning liquid always remains clean; and can realize the recycling of the cleaning liquid by setting a circulation device.

[0043] It should be noted that if Figure 2 As shown, an auxiliary barrel body liquid level tube 114 is installed on the outer side wall of the auxiliary barrel body 102 of the present invention.

[0044] Compared with the prior art, the present invention can display the liquid level of the auxiliary barrel body 102 in real time by installing an auxiliary barrel body liquid level tube 114 on the outer side wall of the auxiliary barrel body 102; when the liquid level is lower than the marked lowest liquid level, the water level does not reach the height of the overflow port 111 after the wax mold is immersed, that is, a circulation cannot be formed between the main barrel body 101 and the auxiliary barrel, and cleaning liquid needs to be injected at this time.

[0045] In order to filter the cleaning liquid containing impurities such as wax scraps, Figure 4 As shown, the filtering device of the present invention includes a filtering tank 112; the filtering tank 112 is hung at the overflow port 111 and is located above the auxiliary barrel body 102; a multi-stage filtering structure 113 is provided in the filtering tank 112, and the multi-stage filtering structure 113 is used to filter out wax scraps in the cleaning liquid.

[0046] Specifically, the filter tank 112 is hung at the overflow port 111, the contour of the filter tank 112 fits the overflow port 111, the bottom of the filter tank 112 is a perforated plate, and the multi-stage filter structure 113 is arranged in the filter tank 112; the multi-stage filter structure 113 is used to ensure efficient purification of water quality. The multi-stage filter structure 113 is composed of a primary filter layer, a middle filter layer and a fine filter layer from top to bottom; each filter layer uses different filter materials; among them, the primary filter layer uses large-particle activated carbon to intercept larger suspended matter and impurities; the middle filter layer uses medium-sized ceramic particles to further remove tiny particles and organic matter in the water; the fine filter layer uses high-density filter cotton to filter out tiny particles and bacteria in the water to ensure water purification.

[0047] It should be noted that the thickness of the primary filter layer, the intermediate filter layer and the fine filter layer decreases in sequence; such a design not only ensures sufficient filtering area and capacity, but also effectively reduces water flow resistance and improves filtering efficiency. The advantage of this thickness configuration is that the primary filter layer can withstand a larger load and extend the service life of the overall filtration system; the intermediate filter layer plays a connecting role and further purifies the water quality; the fine filter layer ensures the high standard of the final effluent water quality through its fine filtering ability. In summary, the present invention adopts a multi-stage filtering structure and its respective filtering materials to achieve effective interception and removal of pollutants of different sizes, thereby improving the efficiency and effect of water purification.

[0048] In order to ensure the filtering effect, the present invention is provided with a sensor at the bottom of the filter tank 112, through which the water quality, flow rate and pressure of the cleaning liquid can be detected.

[0049] It should be noted that the cleaning bucket of the present invention also includes a compressed air supply unit; Figure 2 As shown, a bubbling device is provided at the bottom of the main barrel body 101 of the cleaning barrel body 100; the bubbling device in the main barrel body 101 includes a double-circle jet ring 103; a compressed air inlet 104 is provided at the bottom of the double-circle jet ring 103, and the compressed air inlet 104 is connected to the compressed air supply unit through a compressed air inlet pipe 105.

[0050] Specifically, the bubbling device in the main barrel is a double-circle jet ring 103, which is arranged at the bottom of the barrel of the main barrel 101 by spot welding or other connection methods, and is connected to the compressed air supply unit through the compressed air inlet 104 and the compressed air inlet pipe 105. When cleaning, the bubbling device is turned on, and the double-circle jet ring 103 can continuously swell bubbles. Due to the density relationship, the bubbles will automatically move upward, and the number and density of bubbles can be adjusted by adjusting the compressed air pressure, so that the cleaning liquid is boiled and stirred by compressed gas; the double-circle jet ring 103 can achieve complete cleaning without dead angles.

[0051] The existing technology cannot achieve complete cleaning without dead angles, and its cleaning effect is poor. Compared with the existing technology, the bubbling device of the present invention can use compressed gas to boil and stir the cleaning liquid, and the bubbles it produces are relatively soft and will not cause the wax model to break and deform; the circulation device can ensure that the cleaning liquid always remains in a clean state. The combination of the two can ensure that the wax model is cleaned without dead angles, no dirt residue, and high cleaning cleanliness.

[0052] In the prior art, a high-pressure water pipe is used to clean the wax model in the cleaning device, which has the advantage of being able to form a strong vortex, and having a good cleaning effect on corners and gaps that are difficult to clean. However, the cleaning object of the present invention is a large thin-walled wax model (with a minimum thickness of 0.5 mm), and the existing method is not suitable for the fragile large thin-walled wax model of the present invention. Therefore, the present invention provides a double-circle jet ring 103 for bubbling cleaning, which enhances the stirring and cleaning ability of the cleaning liquid through the rupture of bubbles and the force generated, and is relatively softer and more uniform, and will not damage the wax model.

[0053] like Figure 2 and Figure 5 As shown, the double-circle jet ring 103 of the present invention comprises an inner-circle jet ring and an outer-circle jet ring; the outer-circle jet ring is sleeved on the outer side of the inner-circle jet ring, and the two are arranged concentrically; the diameter of the double-circle jet ring 103 matches the diameter of the barrel body; a plurality of ventilation pipes are arranged between the outer-circle jet ring and the inner-circle jet ring; jet nozzles are evenly distributed on the outer-circle jet ring and the inner-circle jet ring; and the compressed air inlet 104 is arranged at the bottom of the outer-circle jet ring.

[0054] Compared with the prior art, the present invention can ensure that the bubbles generated in the main barrel 101 are more uniform by configuring the bubbling device to be a double-circle jet ring 103 structure, so that the cleaning liquid or rinsing liquid can be fully boiled and stirred to achieve wax mold cleaning or rinsing without dead ends.

[0055] In summary, the present invention sets a bubbling device in the cleaning barrel body 100, uses compressed gas to tumble and stir the cleaning liquid, and the compressed air is ejected through the air nozzle on the bubbling device to generate bubbles, so that the liquid in the main barrel body 101 is in a tumbling state, and then the cleaning liquid can completely cover every corner of the wax model, thereby accelerating the separation of impurities such as wax scraps on the surface of the wax model, and achieving the effect of cleaning without dead angles; the present invention improves the cleaning efficiency compared to static cleaning; compared to existing ultrasonic cleaning, the present invention will not cause thin-walled wax models to break or deform under the premise of ensuring the stirring of the cleaning liquid. At the same time, the cleaning liquid in the cleaning barrel body 100 is filtered and circulated by the filtering device and the circulating device, which ensures the cleanliness of the cleaning liquid. This measure further improves the cleaning effect.

[0056] The present invention also provides a wax mold cleaning system, such as Figure 1As shown, including the above-mentioned cleaning barrel, the wax mold automatic cleaning system also includes a robot 000, a rinsing unit and a drying unit; wherein the cleaning barrel, the rinsing unit and the drying unit are all arranged in an equal-radius ring with the robot 000 as the center.

[0057] Compared with the prior art, the present invention adopts an equal-radius annular layout centered on the robot 000, which can maximize space utilization, not only saving floor space, but also facilitating repeated cleaning operations and flexible movement of wax models.

[0058] In addition, the present invention can realize full process automation by introducing robot 000, including cleaning, rinsing and drying operations of wax molds, with high cleaning efficiency; robot 000 can also realize the loading and unloading of wax molds and the automation of transferring wax molds between processes, and can perform rotation and movement operations in each cleaning equipment, further improving the cleaning and drying effects, while greatly reducing the labor intensity of workers, improving production efficiency, and ensuring the stability of the cleaning effect.

[0059] It should be noted that the robot 000 of the present invention is a standard product purchased from outside, and its specific structure and working principle are not described in detail.

[0060] The rinsing unit of the present invention comprises a rinsing barrel body 201; a rinsing barrel liquid level pipe 206 is provided on the outer side of the rinsing barrel body 201, and a rinsing liquid drain port 205 is provided at the bottom thereof; the function of the rinsing barrel liquid level pipe 206 is to flush away the cleaning agent.

[0061] It should be pointed out that if Figure 2 As shown, a bubbling device is provided at the bottom of the rinsing barrel body 201; the bubbling device inside the rinsing barrel body 201 includes a double-circle jet ring 202; a jet ring air inlet 203 is provided at the bottom of the double-circle jet ring 202 inside the rinsing barrel body, and the jet ring air inlet 203 is connected to the compressed air supply unit through an air inlet pipe 204.

[0062] During rinsing, the bubbling device is turned on, and the double-circle jet ring 202 can continuously bubbling bubbles. Due to the density relationship, the bubbles will automatically move upward, and the number and density of bubbles can be adjusted by adjusting the compressed air pressure, so that the compressed gas is used to boil and stir the rinsing liquid; the double-circle jet ring 202 can achieve rinsing without dead ends; after rinsing is completed, the rinsing liquid is discharged from the rinsing barrel body 201 through the rinsing liquid drain port 205.

[0063] The prior art cannot achieve complete cleaning without dead angles, and its cleaning effect is poor. Compared with the prior art, the bubbling device of the present invention can use compressed gas to boil and stir the cleaning liquid, and the bubbles generated are relatively soft and will not cause the wax model to break and deform.

[0064] In the prior art, a high-pressure water pipe is used to clean the wax model in the cleaning device, which has the advantage of being able to form a strong vortex, and having a good cleaning effect on corners and gaps that are difficult to clean. However, the cleaning object of the present invention is a large thin-walled wax model, and the existing method is not suitable for the fragile large thin-walled wax model of the present invention. Therefore, the present invention provides a double-circle jet ring 202 for bubbling cleaning, which enhances the stirring and rinsing ability of the rinsing liquid through the rupture of bubbles and the force generated, which is relatively softer and more uniform, and will not damage the wax model.

[0065] like Figure 5 As shown, the present invention provides a bubbling device in the rinsing barrel 200, and the clean water in the rinsing barrel 200 can play a diluting and washing role, dilute and clean the residual cleaning agent on the surface of the wax mold, thereby ensuring the cleanliness of the wax mold.

[0066] A rinsing bucket liquid level tube 206 is installed on the side wall of the rinsing bucket body 201 of the present invention, which can display the liquid level in the rinsing bucket body 201 in real time. When the liquid level is lower than the marked lowest liquid level, the water cannot cover the wax mold after the wax mold is immersed, that is, the wax mold cannot be completely rinsed, and water needs to be injected at this time.

[0067] To dry the rinsed wax model, Figure 6 and Figure 7 As shown, the drying unit of the present invention includes a blow-drying barrel 300; the blow-drying barrel 300 includes a blow-drying barrel body 311; a bottom blow-drying device is provided on the blow-drying barrel body 311; the bottom blow-drying device includes a bottom air jet pipe 301; a plurality of air jet nozzles 302 that can rotate 360° are provided on the bottom air jet pipe 301; one end of the bottom air jet pipe 301 penetrates the barrel wall and leads out of the barrel, and a nozzle air inlet 303 is provided on the end of the bottom air jet pipe 301 that penetrates the barrel wall, and the nozzle air inlet 303 is connected to the first air source.

[0068] Compared with the prior art, the present invention provides a bottom air jet pipe 301 at the bottom of the blow-drying barrel body 311 and installs multiple (for example, three) air jet nozzles 302 with 360° adjustable direction on the bottom air jet pipe 301, so as to blow air upward from the bottom of the blow-drying barrel, thereby fully drying the wax mold therein.

[0069] In order to further improve the drying efficiency and achieve the effect of all-round drying, a side wall drying device is also provided on the barrel body 311 of the blow-drying barrel of the present invention; the side wall drying device comprises a first square air storage tube 307, a second square air storage tube, a first air knife 304 and a second air knife; the first square air storage tube 307 and the second square air storage tube are both arranged along the axial direction of the blow-drying barrel body 311 and are arranged outside the barrel body; the first air knife 304 and the second air knife are both arranged along the axial direction of the blow-drying barrel body 311 and are both arranged inside the barrel body; the first square air storage tube 307 is used to supply air to the first air knife 304; the second square air storage tube is used to supply air to the second air knife.

[0070] Specifically, the first air knife 304 and the second air knife have the same structure and are symmetrically arranged on the inner wall of the blow-drying barrel body 311, and the first air storage square tube 307 and the second air storage square tube are symmetrically arranged on the outer wall of the blow-drying barrel body 311; the first air storage square tube 307 is used to supply air to the first air knife 304; the second air storage square tube is used to supply air to the second air knife; the first air knife 304 and the second air knife are both hollow rod-shaped; the first air knife 304 includes a first air knife rod, and similarly, the second air knife includes a second air knife rod, and the first air knife rod and the second air knife rod both have high-pressure chambers, and the nozzles of the first air knife rod and the second air knife rod are a whole air outlet gap along the length direction of the air knife rod; its working process is: the compressed air is further compressed in the high-pressure chamber and passes through a narrow and thin nozzle, and the nozzle is a whole air outlet gap. Under the action of the nozzle, the airflow forms a balanced airflow sheet in the length direction of the air knife; the compression ratio of the first air knife rod and the second air knife rod to the high-pressure airflow is 40-45:1, which minimizes the airflow velocity loss and maximizes the pressure.

[0071] When the rinsed wax model is dried, the gas provided by the gas source enters the corresponding high-pressure gas cavity through the first gas storage square tube 307 and the second gas storage square tube respectively. At this time, the first gas knife 304 and the second gas knife can both generate a high-strength and uniform gas curtain.

[0072] Compared with the prior art, the present invention forms an air curtain by arranging a first air knife 304 and a second air knife on the side wall of the blow-drying barrel. At the same time, a 360° rotatable air nozzle 302 is arranged at the bottom of the blow-drying barrel body 311 to spray air upwards. With the combined effect of the two, multi-angle blowing and all-round drying can be achieved in the blow-drying barrel body 311, so that the moisture on the surface of the wax model can evaporate quickly, ensuring the drying effect.

[0073] In order to realize the gas supply of the above-mentioned gas storage square tube to the corresponding gas knife, the first gas storage square tube 307 and the second gas storage square tube of the present invention are provided with multiple straight joints 308; the first gas knife 304 and the second gas knife are provided with multiple threaded elbow joints 305; the number of straight joints 308 and the threaded elbow joints 305 are equal and the positions are corresponding; the straight joints 308 and the threaded elbow joints 305 are connected by a connecting gas pipe 306 that runs through the barrel wall; in addition, the first gas storage square tube 307 of the present invention is connected to the second gas source through the first gas inlet 309; the second gas storage square tube is connected to the second gas source through the second gas inlet 310.

[0074] Specifically, Figure 7As shown, the first square gas storage tube 307 and the second square gas storage tube of the present invention have the same structure and are symmetrically arranged, and seven straight joints 308 are evenly distributed along the height direction of the two; correspondingly, the first air knife 304 and the second air knife have the same structure and are symmetrical about the central axis of the blow-drying barrel body 311, and seven threaded elbow joints 305 are evenly distributed along the height direction of the two; the seven straight joints 308 outside the barrel correspond to the positions of the seven threaded elbow joints 305 inside the barrel, and the two are connected by a connecting air pipe 306 that penetrates the barrel wall; the first square gas storage tube 307 of the present invention is connected to the second air source through the first air inlet 309; the second square gas storage tube is connected to the second air source through the second air inlet 310; the first square gas storage tube 307 and the second square gas storage tube can play the role of uniform air volume and storing part of the air volume.

[0075] It should be explained that the bottom drying device and the side wall drying device of the present invention use different air sources, the purpose of which is to be able to adjust the air volume of the bottom jet pipe 301, the first air knife 304 and the second air knife respectively to achieve the best drying effect.

[0076] The present invention also provides a wax model automatic cleaning method, which adopts the above-mentioned wax model cleaning system; it is mainly used for cleaning large thin-walled wax models, and the cleaning method comprises the following steps:

[0077] Step 1: Use the robot 000 to put the wax model into the main barrel 101 of the cleaning barrel 100, and turn on the bubbling device, the filtering device and the circulation device at the same time, and use the cleaning liquid to clean the wax model in all directions;

[0078] Step 2: After cleaning, use robot 000 to place the wax model into the rinsing unit for rinsing;

[0079] Step 3: After rinsing, place the wax model in a drying unit for blow drying to obtain a clean wax model.

[0080] In the above step 1, after the robot 000 grabs the wax model and enters the main barrel body 101 of the cleaning barrel body 100, the robot 000 will drive the wax model to rotate and move for sufficient cleaning.

[0081] In the above step 1, the cleaning liquid in the main barrel 101 is bubbled by using the double-circle jet ring 103 of the bubbling device.

[0082] In the above step 1, the double-circle jet ring 103 continuously blows bubbles into the main barrel 101. After the bubbles enter the cleaning liquid, they automatically move upward, and the cleaning liquid is boiled and stirred during the rising process of the bubbles. The present invention uses the double-circle jet ring 103 to generate bubbles to clean the wax model, and uses the rupture of the bubbles and the force generated to enhance the stirring and cleaning ability of the cleaning liquid. It is softer and more uniform than ultrasonic stirring, and will not damage the wax model.

[0083] In the above step 1, after the cleaning is completed, the impurities (wax scraps, cleaning agent) in the cleaning liquid are filtered through a filtering device.

[0084] In the above step 1, after cleaning is completed, the cleaning liquid first enters the filter tank 112 through the overflow port 111, and after being processed by the multi-stage filtering structure 113 in the filter tank 112, the clean cleaning liquid after filtering flows into the auxiliary barrel body 102.

[0085] In the above step 1, the water quality, flow rate and pressure of the cleaning liquid are detected by using the sensor disposed at the bottom of the filter tank 112 .

[0086] In the above step 1, the circulation pump 106 uses the water inlet pipe 107 connected to the auxiliary barrel body 102 and the water return pipe 108 connected to the main barrel body 101 to pump the clean cleaning liquid in the auxiliary barrel body 102 into the main barrel body 101 to achieve the circulation of the cleaning liquid.

[0087] In the above step 1, the liquid level of the auxiliary barrel body 102 is checked through the auxiliary barrel body liquid level tube 114 installed on the outer side wall of the auxiliary barrel body 102; when the liquid level is lower than the marked minimum liquid level, the cleaning liquid is injected.

[0088] In the above step 2, before rinsing the wax model, the double-circle jet ring 103 of the bubbling device is first turned on; the double-circle jet ring 103 can continuously bubble into the rinsing liquid after taking in air through the compressed air inlet 104 at its bottom. After rinsing is completed, the rinsing liquid is discharged from the rinsing barrel body 201 through the rinsing liquid drain port 205.

[0089] In the above step 2, the present invention utilizes the bubbles generated by the double-circle jet ring 103 to boil and stir the rinsing liquid, thereby achieving complete rinsing without dead ends.

[0090] In the above step 2, the liquid level height in the rinsing bucket body 201 is checked through the rinsing bucket liquid level tube 206 installed on the side wall of the rinsing bucket body 201. When the liquid level is lower than the marked minimum liquid level, the water cannot cover the wax mold after the wax mold is immersed, that is, the wax mold cannot be completely rinsed. At this time, clean water is injected.

[0091] In the above step 2, the purpose of rinsing is to further remove the residual cleaning agent and other impurities on the surface of the wax model to ensure that the surface of the wax model is thoroughly cleaned; when the wax model after rinsing has no obvious cleaning agent residue and impurities attached, and its surface smoothness is further improved, the wax model is fished out by robot 000 to complete the rinsing action of the wax model.

[0092] In the above step 3, after rinsing is completed, the wax model is placed into the barrel body 311 of the blow-drying barrel for drying using the robot 000. The specific drying process is as follows: first connect the air source, including connecting the bottom jet pipe 301 in the bottom blow-drying device to the first air source, and connecting the first air storage square tube 307 and the second air storage square tube in the side wall blow-drying device to the second air source; then, turn on the first air source and the second air source, and simultaneously turn on the bottom blow-drying device and the side wall blow-drying device.

[0093] It should be emphasized that the large thin-walled wax models to be processed by the present invention are extremely fragile and can be easily broken. The walls or edges of the wax models are very thin, with a thickness of 0.5 mm at the edges. The structures of the objects to be processed by the present invention are complex, and the wax models are extremely thin and present a curved surface. It should be pointed out that before cleaning, the wax models have oily substances on their surfaces and are shiny. After being treated by the cleaning system and cleaning method of the present invention, the oiliness on the surface of the wax models is removed, and after rinsing and drying, the surface tends to be matte, and the wax models are not damaged, and there are no cracks on the edges.

[0094] In the above step 3, for the side wall drying device, the drying process is as follows: the gas supplied by the second air source is input into the first gas storage square tube 307 and the second gas storage square tube through the first air inlet 309 and the second air inlet 310 respectively, and the gas in the two gas storage square tubes is transported to the high-pressure air cavity of the first air knife 304 and the second air knife through the straight-through joint 308, the connecting air pipe 306 and the threaded elbow joint 305, and the gas is ejected at high speed through the air knife holes on the first air knife 304 and the second air knife. After ejection, the gas produces a high-strength and uniform air curtain along the length direction of the air knife.

[0095] In the above step 3, for the bottom drying device, the drying process is as follows: the gas provided by the first gas source is transported to the bottom jet pipe 301 that penetrates the wall of the drying barrel through the nozzle air inlet 303, and is quickly sprayed out through the multiple 360° rotatable jet nozzles 302 in the bottom jet pipe 301.

[0096] In the above step 3, the bottom blowing device and the side wall blowing device of the present invention can constitute an all-round blowing device. During its working process, the wax mold is rotated by the robot 000, and the all-round blowing device can ensure that the wax mold achieves a 360° blowing effect. Therefore, the present invention can quickly clear most of the residual moisture on the surface of the wax mold, shorten the drying time of the wax mold after cleaning, and ultimately improve production efficiency.

[0097] Compared with the prior art, firstly, the present invention utilizes a bubbling device to tumble and stir the cleaning liquid, and compressed air is ejected through the air nozzle on the bubbling device to generate bubbles, so that the liquid in the main barrel 101 is in a tumbling state, and thus the cleaning liquid can completely cover every corner of the wax mold, thereby accelerating the separation of impurities such as wax scraps on the surface of the wax mold, achieving the effect of cleaning without dead ends.

[0098] Secondly, the present invention improves the cleaning efficiency compared to static cleaning; compared to the existing ultrasonic cleaning, the present invention does not cause thin-walled wax models to break or deform under the premise of ensuring the stirring of the cleaning liquid. At the same time, the cleaning liquid in the cleaning barrel body 100 is filtered and circulated through the filtering device and the circulating device, ensuring the cleanliness of the cleaning liquid, which further improves the cleaning effect.

[0099] Furthermore, the bubbling device of the present invention can utilize compressed gas to boil and stir the cleaning liquid, and the bubbles generated are relatively soft and will not cause the wax model to break or deform; the circulation device can ensure that the cleaning liquid always remains in a clean state. The combination of the two can ensure that the wax model is cleaned without dead corners, without dirt residue, and with a high degree of cleaning cleanliness.

[0100] Finally, the wax mold automatic cleaning method of the present invention can greatly improve the cleaning effect, ensure that no dirt remains, and have a high degree of cleaning cleanliness. The water on the surface of the wax mold can be blown dry by the drying unit to further ensure the cleaning effect and realize efficient and high-quality automatic cleaning of the wax mold.

[0101] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A large thin-wall wax model cleaning bucket, characterized in that: The invention comprises a cleaning barrel body (100), a filtering device and a circulation device; the cleaning barrel body (100) comprises a main barrel body (101) and an auxiliary barrel body (102); the main barrel body (101) and the auxiliary barrel body (102) are arranged adjacent to each other and the bottoms of the main barrel body (101) and the auxiliary barrel body (102) are connected via a circulation device, and an overflow port (111) is arranged at the upper interface of the main barrel body (101); the filtering device is arranged above the auxiliary barrel body (102) and is located at the overflow port (111); the cleaning liquid in the main barrel body (101) flows into the filtering device via the overflow port (111), and flows into the auxiliary barrel body (102) after being filtered.

2. The cleaning bucket for large thin-walled wax models according to claim 1, characterized in that: The circulation device comprises a circulation pump (106), a water inlet pipe (107) and a water return pipe (108); A first water inlet pipe interface (109) is provided at the bottom of the main barrel body (101), and a second water inlet pipe interface (110) is provided at the bottom of the auxiliary barrel body (102); the circulation pump (106) is connected to the main barrel body (101) via the return pipe (108) connected to the first water inlet pipe interface (109), and the circulation pump (106) is connected to the auxiliary barrel body (102) via the water inlet pipe (107) connected to the second water inlet pipe interface (110).

3. The cleaning bucket for large thin-walled wax models according to claim 1, characterized in that: The filtering device of the present invention comprises a filtering tank (112); A multi-stage filtering structure (113) is provided in the filtering tank (112), and the multi-stage filtering structure (113) is used to filter out wax scraps in the cleaning liquid.

4. The cleaning bucket for large thin-walled wax models according to claim 3, characterized in that: The multi-stage filtering structure (113) comprises, from top to bottom, a primary filtering layer, a secondary filtering layer and a fine filtering layer.

5. The cleaning bucket for large thin-walled wax models according to claim 4, characterized in that: The primary filter layer, the intermediate filter layer and the fine filter layer use different filter materials.

6. The cleaning bucket for large thin-wall wax models according to claim 5, characterized in that: in, The primary filter layer uses large-particle activated carbon; the intermediate filter layer uses medium-sized ceramic particles; and the fine filter layer uses high-density filter cotton.

7. The cleaning bucket for large thin-wall wax models according to claim 1, characterized in that: Also included is a compressed air supply unit; A bubbling device is provided in the main barrel body (101) of the cleaning barrel body (100); the bubbling device is a double-circle jet ring; a compressed air inlet (104) is provided at the bottom of the double-circle jet ring (103), and the compressed air inlet (104) is connected to a compressed air supply unit through a compressed air inlet pipe (105).

8. The cleaning bucket for large thin-wall wax models according to claim 7, characterized in that: The double-ring jet ring (103) comprises an inner-ring jet ring and an outer-ring jet ring; The outer jet ring is sleeved on the outer side of the inner jet ring, and the two are arranged concentrically; the diameter of the double jet ring (103) matches the diameter of the barrel; a plurality of ventilation pipes are arranged between the outer jet ring and the inner jet ring; jet nozzles (302) are evenly distributed on the outer jet ring and the inner jet ring; and a compressed air inlet (104) is arranged at the bottom of the outer jet ring.

9. A wax model cleaning system, characterized in that: It comprises the cleaning bucket as claimed in any one of claims 1 to 9; and further comprises a manipulator, a rinsing unit and a drying unit; the cleaning bucket, the rinsing unit and the drying unit are arranged in a circular shape with equal radius with the manipulator as the center.

10. A wax mold automatic cleaning method, characterized in that: The wax pattern cleaning system according to claim 9 is adopted.

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