Wax mould coating spraying device in ceramic shell metal casting

Abstract

The invention relates to a wax mold coating spraying device in ceramic shell metal casting, and belongs to the field of ceramic shell metal casting. Comprising a first transmission mechanism, a spraying station rotating mechanism, a second transmission mechanism, a plurality of spraying mechanisms, a plurality of slurry storage boxes, a plurality of wax mold fixing mechanisms, a base and a control mechanism. The spraying station rotating mechanism is arranged at the top end of the first transmission mechanism, the spraying mechanisms are arranged on the second transmission mechanism in a liftable mode and arranged above the spraying station rotating mechanism, the multiple spraying mechanisms are connected with the multiple slurry storage boxes in a one-to-one correspondence mode, and the wax mold fixing mechanism is arranged on the spraying station rotating mechanism. When the spraying mechanism descends to abut against the spraying station rotating mechanism, the spraying mechanism and the spraying station rotating mechanism form a space used for spraying, and the wax mold fixing mechanism is arranged in the space used for spraying. The automatic wax mold spraying device is beneficial for automatically spraying wax molds in batches, and meanwhile potential safety hazards of operators are reduced.

Description

Technical Field

[0001] The invention relates to the field of ceramic shell metal casting, in particular to a wax pattern coating spraying device in ceramic shell metal casting. Background Art

[0002] Ceramic shell is a mold shell used for investment casting. It is mainly made of high-temperature ceramic materials and can withstand the high temperature and pressure of molten metal. During the production process, the wax model is first used as the basis, and refractory materials and sand layers are repeatedly coated on its surface, and then dried and solidified to form a multi-layer ceramic shell. The wax model is then melted and removed by heating (called "dewaxing"), and the ceramic shell is sintered to enhance its strength. Finally, molten metal is poured into the cavity, and the shell is broken after the metal cools to obtain the casting. The manufacturing process of the ceramic shell includes the steps of wax model making, coating preparation, coating, sprinkling surface sand, drying and solidification, repeated coating, dewaxing and sintering, metal pouring, and cooling and shelling. Its advantages are mainly reflected in its superior high-temperature performance, high precision, suitable for complex geometric shapes, excellent strength and thermal shock resistance, and suitable for the manufacture of aerospace and high-precision parts.

[0003] However, in the wax model coating spraying process, the existing technology generally adopts manual operation. Manual spraying is not only costly and inefficient, but also not conducive to automated batch spraying operations. In addition, the atomized coating during the spraying process can be easily inhaled into the human body by the operator, causing safety hazards. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a wax pattern coating spraying device in ceramic shell metal casting to solve the above-mentioned problem.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: A wax pattern coating spraying device in ceramic shell metal casting, comprising: a first transmission mechanism, a spraying station rotating mechanism, a second transmission mechanism, a plurality of spraying mechanisms, a plurality of slurry storage boxes, a plurality of wax pattern fixing mechanisms, a base and a control mechanism; the first transmission mechanism, the second transmission mechanism and the slurry storage box are all arranged on the base, the spraying station rotating mechanism is arranged at the top of the first transmission mechanism, the spraying mechanism can be lifted and lowered on the second transmission mechanism, the spraying mechanism is arranged above the spraying station rotating mechanism, a plurality of the spraying mechanisms are connected to a plurality of the slurry storage boxes in a one-to-one correspondence, the wax pattern fixing mechanism is arranged on the spraying station rotating mechanism, when the spraying mechanism descends to abut against the spraying station rotating mechanism, the spraying mechanism and the spraying station rotating mechanism form a space for spraying, and the wax pattern fixing mechanism is arranged in the space for spraying, and the first transmission mechanism, the second transmission mechanism, the spraying mechanism and the wax pattern fixing mechanism are all connected to the control mechanism.

[0006] The beneficial effects of the present invention are as follows: multiple wax molds are placed on a wax mold fixing mechanism on a spray station rotating mechanism, and the spray station rotating mechanism is driven to rotate by the first transmission mechanism, and at the same time, the spray mechanism is driven to rise and fall in cooperation with the second transmission mechanism. When the spray mechanism descends to abut against the spray station rotating mechanism, the spray mechanism and the spray station rotating mechanism form a space for spraying. At this time, the wax mold fixing mechanism is conducive to driving the wax mold to rotate in all directions within the spraying space, so that the spray mechanism can spray the slurry or mortar prepared in advance in the slurry storage box onto the wax mold, and at the same time, the slurry atomized in the spraying process can be sucked out and discharged in time, thereby realizing automated and batch spraying operations while reducing the risk of atomized paint being inhaled into the human body.

[0007] Based on the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the spraying station rotating mechanism includes a connecting disk and a plurality of spraying stations, the plurality of spraying stations are arranged around the circumference of the connecting disk, the connecting disk is arranged at the top end of the first transmission mechanism, and the plurality of wax model fixing mechanisms are installed one by one on the plurality of spraying stations.

[0009] The beneficial effect of adopting the above further scheme is that the connecting disk is conducive to driving multiple spraying stations to rotate under the drive of the first transmission mechanism, and then cooperating with multiple spraying mechanisms to realize multiple steps of spraying on multiple wax models in sequence, thereby realizing the automation and batch production of wax model spraying.

[0010] Further, the first transmission mechanism includes: a first servo motor, a first transmission belt and a transmission rod; the transmission rod is rotatably vertically arranged on the base, the first servo motor is arranged on the base, the lower end of the transmission rod and the first servo motor are connected through the first transmission belt, the connecting disk is coaxially arranged at the top end of the transmission rod, and the control mechanism is connected to the first servo motor.

[0011] The beneficial effect of adopting the above further solution is that the first servo motor is conducive to driving the transmission rod to rotate through the first transmission belt, thereby driving the connection disk and the multiple spraying stations arranged around the circumference of the connection disk to rotate.

[0012] Furthermore, the wax model fixing mechanism includes: an electric push rod, a base plate, a swing motor, a swing limit block, a rocker arm, a turntable and an electric heating rod; the electric push rod is installed on the spraying station, the base plate is installed on the top of the electric push rod, the swing motor and the swing limit block are installed on the base plate, the rocker arm is swingably arranged in the swing limit block, the output shaft of the swing motor passes through the side wall of the swing limit block and is connected to the bottom end of the rocker arm, the turntable is arranged at the top of the rocker arm, the electric heating rod is fixed on the turntable, and the control mechanism is connected to the electric push rod, the swing motor, the turntable and the electric heating rod.

[0013] The beneficial effects of adopting the above-mentioned further scheme are: the electric push rod is conducive to adjusting the height of the wax model installed on the wax model fixing mechanism, the swing motor is conducive to driving the rocker arm to swing within the swing limit block, thereby realizing the adjustment of the position of the wax model, the turntable is conducive to adjusting the other position of the wax model, the electric push rod, rocker arm and turntable are conducive to realizing all-round adjustment of the wax model in space, and cooperating with the spraying mechanism to realize uniform spraying of the wax model, the electric heating rod is conducive to penetrating into the interior of the wax model during heating, and is fixed to the wax model after cooling, thereby realizing the fixation of the wax model.

[0014] Furthermore, the swing limit block is a U-shaped block structure, the rocker arm is a rod-shaped structure with a sphere at the bottom end, the sphere at the bottom end of the rocker arm is adapted to be installed in the swing limit block, and the swing motor drives the rocker arm to swing in the U-shaped opening on the side wall of the swing limit block by forward and reverse rotation.

[0015] The beneficial effect of adopting the above further scheme is: an opening is set on the side wall of the swing limit block, and the swing limit block forms a U-shaped block structure, which is conducive to the swing arm to swing in the swing limit block, providing space and limit for the position adjustment of the wax model.

[0016] Furthermore, the spraying mechanism includes: a spray box, a slurry spraying assembly and a slurry suction assembly; the spray box is a shell structure with an open bottom end, and the spray box is hoisted on the second transmission mechanism. When the spray box descends to abut against the spraying station, the spray box and the spraying station form a space for spraying, and the slurry spraying assembly and the slurry suction assembly are both connected to the top of the spray box.

[0017] The beneficial effect of adopting the above-mentioned further scheme is that the spray box is a shell structure with an open bottom, which is conducive to forming a relatively closed space when it moves downward to abut against the spraying station, thereby preventing the atomized paint from volatilizing into the air during spraying. At the same time, the slurry suction component is conducive to timely sucking out the atomized paint in the space, and the slurry spraying component is conducive to pumping the pre-prepared paint in the slurry storage box and spraying it onto the wax model.

[0018] Furthermore, the slurry spraying assembly includes: a nozzle, a first connecting pipe and a slurry pump; the nozzle is arranged on the top inner wall of the spray box, the nozzle and the slurry pump and the slurry pump and the slurry storage box are connected through the first connecting pipe, and the control mechanism is connected to the slurry pump.

[0019] The beneficial effect of adopting the above further scheme is that the slurry delivery pump is conducive to pumping the slurry in the slurry storage box to the nozzle through the first connecting pipe, and spraying it onto the wax model in the spraying space formed by the spraying mechanism and the spraying station, and at the same time cooperates with the wax model fixing mechanism to achieve all-round and uniform spraying of the wax model.

[0020] Furthermore, the slurry suction assembly includes: a suction head, a second connecting pipe and a suction pump; the suction head is arranged on the inner wall of the top end of the spray box, the suction head and the suction pump as well as the suction pump and the external slurry processing equipment are connected through the second connecting pipe, and the control mechanism is connected to the suction pump.

[0021] The beneficial effect of adopting the above-mentioned further scheme is that the suction head is helpful to start after spraying for a period of time to allow the paint on the surface of the wax mold to adhere well, and to suck out the excess atomized paint in the spraying space formed by the spraying mechanism and the spraying station, so as to avoid the atomized paint from diffusing into the air and polluting the environment after the subsequent spray box rises.

[0022] Furthermore, the second transmission mechanism includes: a second servo motor, a second transmission belt, a transmission screw, a slider and a plurality of connecting hangers; the transmission screw is rotatably and vertically arranged on the base, the second servo motor is arranged on the base, the second servo motor and the lower end of the transmission screw are connected by the second transmission belt, the transmission screw passes through the slider and is threadedly connected to the slider, a plurality of connecting hangers are arranged around the circumference of the slider, the spray boxes in the plurality of spray mechanisms are hoisted one by one at the end of the plurality of connecting hangers away from the slider, and the control mechanism is connected to the second servo motor.

[0023] The beneficial effect of adopting the above further scheme is that the second servo motor is conducive to driving the transmission screw to rotate through the second transmission belt, thereby causing the slider to move up and down on the transmission screw, thereby adjusting the height of the spray box installed on the connecting boom in the debt space, and cooperating with the spraying station to form a space for spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A front view of the overall structure provided by an embodiment of the present invention;

[0025] Figure 2 A top view of the first transmission mechanism and the spraying station rotation mechanism provided in an embodiment of the present invention;

[0026] Figure 3 A top view of a second transmission mechanism and a spraying mechanism provided in an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the structure of a spraying mechanism provided in an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the structure of a wax model fixing mechanism provided in an embodiment of the present invention;

[0029] Figure 6 A side view of a wax model fixing mechanism provided in an embodiment of the present invention.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1. First transmission mechanism; 2. Spraying station rotating mechanism; 3. Second transmission mechanism; 4. Spraying mechanism; 5. Slurry storage box; 6. Wax mold fixing mechanism; 7. Base; 11. First servo motor; 12. First transmission belt; 13. Transmission rod; 21. Connecting plate; 22. Spraying station; 31. Second servo motor; 32. Second transmission belt; 33. Transmission screw; 34. Sliding block; 35. Connecting suspension rod; 41. Spraying box; 42. Slurry spraying assembly; 43. Slurry suction assembly; 61. Electric ejector; 62. Bottom plate; 63. Swinging motor; 64. Swinging limit block; 65. Swinging rod; 66. Turntable; 67. Electric heating rod; 421. Spray head; 422. First connecting pipe; 423. Slurry delivery pump; 431. Suction head; 432. Second connecting pipe; 433. Suction pump. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] like Figures 1 to 6As shown, a wax pattern coating spraying device for ceramic shell metal casting comprises: a first transmission mechanism 1, a spraying station rotating mechanism 2, a second transmission mechanism 3, a plurality of spraying mechanisms 4, a plurality of slurry storage boxes 5, a plurality of wax pattern fixing mechanisms 6, a base 7 and a control mechanism; the first transmission mechanism 1, the second transmission mechanism 3 and the slurry storage box 5 are all arranged on the base 7, the spraying station rotating mechanism 2 is arranged on the top of the first transmission mechanism 1, the spraying mechanism 4 is liftably arranged on the second transmission mechanism 3, and the spraying mechanism 4 is arranged on Above the spraying station rotating mechanism 2, the multiple spraying mechanisms 4 are connected to the multiple slurry storage boxes 5 in a one-to-one correspondence, and the wax model fixing mechanism 6 is arranged on the spraying station rotating mechanism 2. When the spraying mechanism 4 descends to abut against the spraying station rotating mechanism 2, the spraying mechanism 4 and the spraying station rotating mechanism 2 form a space for spraying, and the wax model fixing mechanism 6 is arranged in the space for spraying, and the first transmission mechanism 1, the second transmission mechanism 3, the spraying mechanism 4 and the wax model fixing mechanism 6 are all connected to the control mechanism.

[0034] Among them, it should be noted that: according to the different ceramic shell manufacturing processes, the number of the spraying mechanism 4 and the slurry storage box 5 is also different. In the preferred embodiment of the present invention, when the ceramic shell is manufactured, the wax mold needs to be coated with an inner layer slurry, a transition layer slurry and an outer sand layer slurry from the inside to the outside, then the number of the spraying mechanism 4 and the slurry storage box 5 is three. After the inner layer slurry, the transition layer slurry and the outer sand layer slurry are prepared in advance, they are placed in the three slurry storage boxes 5 one by one, and are sprayed on the wax mold one by one through the three spraying mechanisms 4;

[0035] In the technical solution of the present invention, the control mechanism is a PLC (Programmable Automation Control) or a single-chip microcomputer.

[0036] The beneficial effects of the present invention are as follows: multiple wax molds are placed on a wax mold fixing mechanism on a spray station rotating mechanism, and the spray station rotating mechanism is driven to rotate by the first transmission mechanism, and at the same time, the spray mechanism is driven to rise and fall in cooperation with the second transmission mechanism. When the spray mechanism descends to abut against the spray station rotating mechanism, the spray mechanism and the spray station rotating mechanism form a space for spraying. At this time, the wax mold fixing mechanism is conducive to driving the wax mold to rotate in all directions within the spraying space, so that the spray mechanism can spray the slurry or mortar prepared in advance in the slurry storage box onto the wax mold, and at the same time, the slurry atomized in the spraying process can be sucked out and discharged in time, thereby realizing automated and batch spraying operations while reducing the risk of atomized paint being inhaled into the human body.

[0037] Preferably, Figure 2 As shown, the spraying station rotating mechanism 2 includes a connecting disk 21 and a plurality of spraying stations 22. The plurality of spraying stations 22 are arranged around the circumference of the connecting disk 21. The connecting disk 21 is arranged at the top end of the first transmission mechanism 1. The plurality of wax model fixing mechanisms 6 are installed one by one on the plurality of spraying stations 22.

[0038] The beneficial effect of adopting the above-mentioned preferred scheme is that the connecting disk is conducive to driving multiple spraying stations to rotate under the drive of the first transmission mechanism, and then cooperating with multiple spraying mechanisms to realize multiple steps of spraying on multiple wax models in sequence, thereby realizing the automation and batch production of wax model spraying.

[0039] Preferably, Figure 1 and Figure 2 As shown, the first transmission mechanism 1 includes: a first servo motor 11, a first transmission belt 12 and a transmission rod 13; the transmission rod 13 is rotatably vertically arranged on the base 7, the first servo motor 11 is arranged on the base 7, the lower end of the transmission rod 13 and the first servo motor 11 are connected through the first transmission belt 12, the connecting disk 21 is coaxially arranged on the top end of the transmission rod 13, and the control mechanism is connected to the first servo motor 11.

[0040] It should be noted that in the technical solution of the present invention, the transmission rod 13 is rotatably connected to the base 7 via a bearing, that is, the bearing is arranged on the base 7, and the bottom end of the transmission rod 13 is arranged in the bearing.

[0041] The beneficial effect of adopting the above preferred solution is that the first servo motor is conducive to driving the transmission rod to rotate through the first transmission belt, thereby driving the connection disk and multiple spraying stations arranged around the circumference of the connection disk to rotate.

[0042] Preferably, Figure 5 and Figure 6 As shown, the wax model fixing mechanism 6 includes: an electric push rod 61, a base plate 62, a swing motor 63, a swing limit block 64, a rocker arm 65, a turntable 66 and an electric heating rod 67; the electric push rod 61 is installed on the spraying station 22, the base plate 62 is installed at the top of the electric push rod 61, the swing motor 63 and the swing limit block 64 are installed on the base plate 62, the rocker arm 65 is swingably arranged in the swing limit block 64, the output shaft of the swing motor 63 passes through the side wall of the swing limit block 64 and is connected to the bottom end of the rocker arm 65, the turntable 66 is arranged at the top of the rocker arm 65, the electric heating rod 67 is fixed on the turntable 66, and the control mechanism is connected to the electric push rod 61, the swing motor 63, the turntable 66 and the electric heating rod 67.

[0043] The beneficial effects of adopting the above-mentioned preferred scheme are: the electric push rod is conducive to adjusting the height of the wax model installed on the wax model fixing mechanism, the swing motor is conducive to driving the swing arm to swing in the swing limit block, thereby realizing the adjustment of the orientation of the wax model, the turntable is conducive to adjusting the other orientation of the wax model, the electric push rod, the swing arm and the turntable are conducive to realizing the all-round adjustment of the wax model in space, and cooperating with the spraying mechanism to realize the uniform spraying of the wax model, the electric heating rod is conducive to penetrating into the interior of the wax model when heating, and is fixed to the wax model after cooling, thereby realizing the fixation of the wax model.

[0044] Preferably, Figure 5 and Figure 6 As shown, the swing limit block 64 is a U-shaped block structure, the rocker arm 65 is a rod-shaped structure with a sphere at the bottom end, the sphere at the bottom end of the rocker arm 65 is adapted to be installed in the swing limit block 64, and the swing motor 63 drives the rocker arm 65 to swing in the U-shaped opening on the side wall of the swing limit block 64 by forward and reverse rotation.

[0045] The beneficial effect of adopting the above preferred scheme is: an opening is set on the side wall of the swing limit block, and the swing limit block forms a U-shaped block structure, which is conducive to the swing arm to swing in the swing limit block, providing space and limit for the position adjustment of the wax model.

[0046] Preferably, Figure 4 As shown, the spraying mechanism 4 includes: a spraying box 41, a slurry spraying assembly 42 and a slurry suction assembly 43; the spraying box 41 is a shell structure with an open bottom end, and the spraying box 41 is hoisted on the second transmission mechanism 3. When the spraying box 41 descends to abut against the spraying station 22, the spraying box 41 and the spraying station 22 form a space for spraying, and the slurry spraying assembly 42 and the slurry suction assembly 43 are both connected to the top of the spraying box 41.

[0047] It should be noted that in a preferred embodiment of the present invention, by selecting different materials for the spray box 41 and the spray station 22, it is possible to achieve a state with better sealing performance between the spray box 41 and the spray station 22 when the spray box 41 is lowered to abut against the spray station 22.

[0048] The beneficial effect of adopting the above-mentioned preferred scheme is that the spray box is a shell structure with an open bottom, which is conducive to forming a relatively closed space when it moves downward to abut against the spraying station, thereby preventing the atomized paint from volatilizing into the air during spraying. At the same time, the slurry suction component is conducive to timely sucking out the atomized paint in the space, and the slurry spraying component is conducive to pumping the pre-prepared paint in the slurry storage box and spraying it onto the wax model.

[0049] Preferably, Figure 4 As shown, the slurry spraying assembly 42 includes: a nozzle 421, a first connecting pipe 422 and a slurry pump 423; the nozzle 421 is arranged on the inner wall of the top end of the spray box 41, and the nozzle 421 and the slurry pump 423 as well as the slurry pump 423 and the slurry storage box 5 are connected through the first connecting pipe 422, and the control mechanism is connected to the slurry pump 423.

[0050] The beneficial effect of adopting the above-mentioned preferred scheme is that the slurry delivery pump is conducive to pumping the slurry in the slurry storage box to the nozzle through the first connecting pipe, and spraying it onto the wax model in the spraying space formed by the spraying mechanism and the spraying station, and at the same time cooperates with the wax model fixing mechanism to achieve all-round and uniform spraying of the wax model.

[0051] Preferably, Figure 4 As shown, the slurry suction assembly 43 includes: a suction head 431, a second connecting pipe 432 and a suction pump 433; the suction head 431 is arranged on the inner wall of the top end of the spray box 41, and the suction head 431 and the suction pump 433 as well as the suction pump 433 and the external slurry processing equipment are connected through the second connecting pipe 432, and the control mechanism is connected to the suction pump 433.

[0052] It should be noted that: in the technical solution of the present invention, the external slurry treatment equipment is an existing equipment for purifying and recycling the sucked slurry, and the specific structure is not involved in the present invention.

[0053] The beneficial effect of adopting the above-mentioned preferred scheme is that the suction head is helpful to start after spraying for a period of time to allow the paint on the surface of the wax mold to adhere well, and to suck out the excess atomized paint in the spraying space formed by the spraying mechanism and the spraying station, so as to avoid the atomized paint from diffusing into the air and polluting the environment after the subsequent spray box rises.

[0054] Preferably, Figure 1 and Figure 3 As shown, the second transmission mechanism 3 includes: a second servo motor 31, a second transmission belt 32, a transmission screw 33, a slider 34 and a plurality of connecting hangers 35; the transmission screw 33 is rotatably arranged vertically on the base 7, the second servo motor 31 is arranged on the base 7, the second servo motor 31 and the lower end of the transmission screw 33 are connected through the second transmission belt 32, the transmission screw 33 passes through the slider 34 and is threadedly connected to the slider 34, a plurality of the connecting hangers 35 are arranged around the slider 34, the spray boxes 41 in the plurality of spray mechanisms 4 are hoisted one by one on the end of the plurality of connecting hangers 35 away from the slider 34, and the control mechanism is connected to the second servo motor 31.

[0055] It should be noted that in the technical solution of the present invention, the transmission screw 33 is rotatably connected to the base 7 through a bearing, that is, the bearing is arranged on the base 7, and the bottom end of the transmission screw 33 is arranged in the bearing.

[0056] The beneficial effect of adopting the above-mentioned preferred scheme is that the second servo motor is conducive to driving the transmission screw to rotate through the second transmission belt, thereby causing the slider to move up and down on the transmission screw, thereby adjusting the height of the spray box installed on the connecting boom in the debt space, and cooperating with the spraying station to form a space for spraying.

[0057] The working process of the present invention is described below:

[0058] like Figures 1 to 6 As shown, in this embodiment, the wax model needs to be sprayed three times by three spraying mechanisms 4;

[0059] First, the electric heating rods 67 in the multiple wax model fixing mechanisms 6 are heated and inserted into the wax models, and the wax models are fixed on the electric heating rods 67 after cooling, so that the multiple wax models are fixed on the multiple spraying stations 22 one by one;

[0060] Then, the first servo motor 11 is started to drive the plurality of spraying stations 22 to rotate. When one of the spraying stations 22 rotates to the bottom of the spraying mechanism 4 for spraying the first coat of paint, the first servo motor 11 stops, and the second servo motor 31 is started to move the slider 34 downward until the spraying box 41 for spraying the first coat of paint abuts against the spraying station 22. The second servo motor 31 stops. At this time, a space for spraying the first coat of paint is formed between the spraying box 41 and the spraying station 22, and the wax mold fixing mechanism 6 with the wax mold installed is located in this space.

[0061] Then the slurry delivery pump 423 is started, and the paint in the slurry storage box 5 containing the first coat of paint is pumped to the nozzle 421, and sprayed out through the nozzle 421. During the process of the nozzle 421 spraying the first coat of paint, the electric push rod 61, the swing motor 63 and the turntable 66 are started, driving the wax model to change its angle in space, so that the paint can be evenly coated on the wax model;

[0062] After the first coat of paint is evenly applied to the wax model, the slurry delivery pump 423 is turned off, and the suction pump 433 is started to suck the atomized slurry in the space formed by the spray box 41 and the spray station 22 to the external slurry treatment equipment for purification;

[0063] Finally, the second servo motor 31 reverses to lift the spray box 41 upward, and the first servo motor 11 continues to start to drive the spray station 22 to rotate to below the second spray mechanism 4.

[0064] The above process is repeated until multiple spraying mechanisms 4 spray the wax model multiple times.

[0065] It should be noted that: in the above process, when the spraying station 22 that has performed the first spraying is performing the second spraying, the spraying station 22 that has not performed the first spraying can simultaneously perform the first spraying. Similarly, when the spraying station 22 that has performed the second spraying is performing the third spraying, the spraying station 22 that has not performed the second spraying can simultaneously perform the second spraying, until the wax models on all the spraying stations 22 have been sprayed three times.

[0066] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0067] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0068] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0071] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A wax pattern coating spraying device for ceramic shell metal casting, characterized in that: include: A first transmission mechanism (1), a spraying station rotating mechanism (2), a second transmission mechanism (3), a plurality of spraying mechanisms (4), a plurality of slurry storage boxes (5), a plurality of wax model fixing mechanisms (6), a base (7) and a control mechanism; The first transmission mechanism (1), the second transmission mechanism (3) and the slurry storage box (5) are all arranged on the base (7); the spraying station rotating mechanism (2) is arranged at the top of the first transmission mechanism (1); the spraying mechanism (4) is arranged on the second transmission mechanism (3) in a liftable manner; the spraying mechanism (4) is arranged above the spraying station rotating mechanism (2); a plurality of the spraying mechanisms (4) are connected to a plurality of the slurry storage boxes (5) in a one-to-one correspondence; the wax model fixing mechanism (6) is arranged on the spraying station rotating mechanism (2); when the spraying mechanism (4) descends to abut against the spraying station rotating mechanism (2), the spraying mechanism (4) and the spraying station rotating mechanism (2) form a space for spraying, and the wax model fixing mechanism (6) is arranged in the space for spraying; the first transmission mechanism (1), the second transmission mechanism (3), the spraying mechanism (4) and the wax model fixing mechanism (6) are all connected to the control mechanism.

2. The wax pattern coating spraying device for ceramic shell metal casting according to claim 1, characterized in that: The spraying station rotating mechanism (2) comprises a connecting disk (21) and a plurality of spraying stations (22), wherein the plurality of spraying stations (22) are arranged around the circumference of the connecting disk (21), the connecting disk (21) is arranged at the top end of the first transmission mechanism (1), and the plurality of wax model fixing mechanisms (6) are mounted on the plurality of spraying stations (22) in a one-to-one correspondence.

3. The wax pattern coating spraying device for ceramic shell metal casting according to claim 2, characterized in that: The first transmission mechanism (1) comprises: a first servo motor (11), a first transmission belt (12) and a transmission rod (13); the transmission rod (13) is rotatably arranged vertically on the base (7); the first servo motor (11) is arranged on the base (7); the lower end of the transmission rod (13) and the first servo motor (11) are connected via the first transmission belt (12); the connecting plate (21) is coaxially arranged at the top end of the transmission rod (13); and the control mechanism is connected to the first servo motor (11).

4. The wax pattern coating spraying device for ceramic shell metal casting according to claim 2, characterized in that: The wax model fixing mechanism (6) comprises: an electric push rod (61), a bottom plate (62), a swing motor (63), a swing limit block (64), a swing rod (65), a turntable (66) and an electric heating rod (67); the electric push rod (61) is mounted on the spraying station (22), the bottom plate (62) is mounted on the top of the electric push rod (61), the swing motor (63) and the swing limit block (64) are mounted on the bottom plate (62), and the swing rod (65) is mounted on the top of the electric push rod (61). ) is swingably arranged in the swing limit block (64), the output shaft of the swing motor (63) passes through the side wall of the swing limit block (64) and is connected to the bottom end of the swing rod (65), the turntable (66) is arranged at the top end of the swing rod (65), the electric heating rod (67) is fixed on the turntable (66), and the control mechanism is connected to the electric top rod (61), the swing motor (63), the turntable (66) and the electric heating rod (67).

5. A wax pattern coating spraying device for ceramic shell metal casting according to claim 4, characterized in that: The swing limit block (64) is a U-shaped block structure, the swing rod (65) is a rod-shaped structure with a sphere at the bottom end, the sphere at the bottom end of the swing rod (65) is adapted to be installed in the swing limit block (64), and the swing motor (63) drives the swing rod (65) to swing in the U-shaped opening on the side wall of the swing limit block (64) by forward and reverse rotation.

6. The wax pattern coating spraying device for ceramic shell metal casting according to claim 2, characterized in that: The spraying mechanism (4) comprises: a spraying box (41), a slurry spraying assembly (42) and a slurry suction assembly (43); the spraying box (41) is a shell structure with an open bottom end, and the spraying box (41) is hoisted on the second transmission mechanism (3). When the spraying box (41) is lowered to abut against the spraying station (22), the spraying box (41) and the spraying station (22) form a space for spraying, and the slurry spraying assembly (42) and the slurry suction assembly (43) are both connected to the top end of the spraying box (41).

7. A wax pattern coating spraying device for ceramic shell metal casting according to claim 6, characterized in that: The slurry spraying assembly (42) comprises: a nozzle (421), a first connecting pipe (422) and a slurry delivery pump (423); the nozzle (421) is arranged on the inner wall of the top end of the spraying box (41); the nozzle (421) and the slurry delivery pump (423) as well as the slurry delivery pump (423) and the slurry storage box (5) are connected via the first connecting pipe (422); and the control mechanism is connected to the slurry delivery pump (423).

8. The wax pattern coating spraying device for ceramic shell metal casting according to claim 6, characterized in that: The slurry suction assembly (43) includes: a suction head (431), a second connecting pipe (432) and a suction pump (433); the suction head (431) is arranged on the inner wall of the top end of the spray box (41), the suction head (431) and the suction pump (433) as well as the suction pump (433) and the external slurry processing equipment are connected through the second connecting pipe (432), and the control mechanism is connected to the suction pump (433).

9. The wax pattern coating spraying device for ceramic shell metal casting according to claim 6, characterized in that: The second transmission mechanism (3) comprises: a second servo motor (31), a second transmission belt (32), a transmission screw (33), a slider (34) and a plurality of connecting suspension rods (35); the transmission screw (33) is rotatably arranged vertically on the base (7); the second servo motor (31) is arranged on the base (7); the second servo motor (31) and the lower end of the transmission screw (33) are connected via the second transmission belt (32); the transmission screw (33) passes through the slider (34) and is threadedly connected to the slider (34); a plurality of connecting suspension rods (35) are arranged around the slider (34); the spray boxes (41) in the plurality of spray mechanisms (4) are hoisted one by one on the ends of the plurality of connecting suspension rods (35) away from the slider (34); and the control mechanism is connected to the second servo motor (31).

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