An automatic ceramic core wax filling system

Abstract

The application discloses a kind of ceramic core automatic wax filling systems, it is related to precision casting technical field, to solve one of the problems of ceramic core wax filling operation in prior art relies on manual, filling quality consistency is poor, production efficiency is low and waxing needle switching operation is complicated.The ceramic core automatic wax filling system of the present application includes waxing assembly, ceramic core loading tray assembly, wax melting and wax flow control assembly and loading tray displacement servo assembly;The waxing assembly is arranged in the side of the loading tray displacement servo assembly;The ceramic core loading tray assembly is arranged on the loading tray displacement servo assembly;The wax melting and wax flow control assembly is connected with the waxing assembly by pipeline;The loading tray displacement servo assembly is used to drive the ceramic core loading tray assembly to rotate and pitch.The present application can realize the automation of ceramic core wax filling process, improve the consistency of wax filling quality and production efficiency, and facilitate quick switching waxing needle.

Description

Technical Field

[0001] This invention relates to the field of precision casting technology, and in particular to an automatic wax filling system for ceramic cores. Background Technology

[0002] Wax filling of ceramic cores is a key pretreatment process in the precision casting field, used to fill surface defects in ceramic cores and directly affecting the quality of castings. Currently, the wax filling operation for ceramic cores is mainly done manually.

[0003] Traditional manual wax filling methods have the following drawbacks: operation relies on experience and feel, making it impossible to precisely control the waxing path and angle, resulting in poor filling quality consistency and low production efficiency; the coverage area of ​​a single wax filling is small, requiring multiple applications; ceramic cores have complex curved surfaces, making it difficult for manual operators to flexibly adjust the core angle, easily leading to wax droplet turbulence or incomplete filling; manual operators cannot preheat the core, causing the wax to solidify rapidly upon contact with the cold core, resulting in uneven filling; in addition, different specifications of ceramic cores require waxing needles of different shapes, and the frequent disassembly and assembly of waxing needles by manual operators is cumbersome and inefficient.

[0004] Therefore, there is an urgent need for an automated wax filling system for ceramic cores that can achieve automated, high-precision, and high-efficiency wax filling, and has angle adjustment and quick needle changing functions. Summary of the Invention

[0005] Based on the above analysis, the present invention aims to provide an automatic wax filling system for ceramic cores, in order to solve one of the problems in the prior art: the wax filling operation of ceramic cores relies on manual labor, the filling quality is inconsistent, the production efficiency is low, and the waxing needle switching operation is cumbersome.

[0006] The objective of this invention is mainly achieved through the following technical solutions: An automatic wax-filling system for ceramic cores includes a wax coating component, a ceramic core loading tray component, a wax melting and wax flow control component, and a loading tray displacement servo component. The wax coating component is disposed to the side of the loading tray displacement servo component. The ceramic core loading tray component is disposed on the loading tray displacement servo component. The wax melting and wax flow control component is connected to the wax coating component via a pipeline. The loading tray displacement servo component is used to drive the ceramic core loading tray component to rotate and pitch.

[0007] Furthermore, the waxing assembly includes a waxing robot and a first waxing needle.

[0008] Furthermore, the ceramic core feeding tray assembly includes a feeding tray and a positioning fixture; the upper surface of the positioning fixture is provided with a contour groove that matches the shape of the ceramic core.

[0009] Furthermore, the loading pallet displacement servo component includes a servo CNC turntable and an angle rotating component.

[0010] Furthermore, the angle rotating component includes a servo motor and a ceramic core flip plate; the servo motor drives the ceramic core flip plate to pitch.

[0011] Furthermore, the wax melting and wax flow control assembly includes a wax melting component and a wax flow control component.

[0012] Furthermore, the loading tray includes a tapered pin lock and a clamp bushing.

[0013] Furthermore, the waxing robot is used to drive the first waxing needle to move along a preset trajectory.

[0014] Furthermore, the angle rotating component also includes an origin sensing plate and a slotted photoelectric sensor; the slotted photoelectric sensor is used to detect the origin sensing plate to determine the zero position of the ceramic core flip plate.

[0015] Furthermore, the servo CNC rotary table is used to drive the rotary table base plate to rotate around the vertical axis.

[0016] Furthermore, the waxing assembly also includes a strip-shaped automatic spray gun, with the first waxing needle disposed at the wax outlet of the strip-shaped automatic spray gun; the end of the first waxing needle is configured as a duckbill structure, which is used to increase the width of a single waxing pass.

[0017] Furthermore, the angle rotating component also includes a heating plate, which is disposed between the ceramic core flipping plate and the feeding tray; the servo motor drives the ceramic core flipping plate to achieve pitch movement within a range of ±30°.

[0018] Furthermore, the servo CNC turntable is mounted on the equipment base of the protective cover base assembly; the turntable base plate is mounted on the output flange of the servo CNC turntable; two workstations are provided above the servo CNC turntable, one workstation is used for wax filling while the other workstation is used for picking up and placing ceramic cores; the loading tray displacement servo assembly also includes a partition, which is mounted on the turntable base plate to separate the two workstations.

[0019] Furthermore, it also includes a multi-needle adjustable rotating frame, used to replace the first waxing needle and be installed on the strip-shaped automatic spray gun; the multi-needle adjustable rotating frame includes a rotating frame and a positioning block; the bottom of the rotating frame is provided with multiple needle mounting holes, and the outer side wall is provided with multiple positioning grooves; the positioning block is provided with a positioning protrusion, used to be engaged in the positioning groove to switch waxing needles of different specifications.

[0020] The technical solution of this invention can achieve at least one of the following effects: (1) This invention solves the problems of manual operation and angle adjustment difficulties in the ceramic core wax filling process in the prior art by setting up a wax coating component, a ceramic core feeding tray component, a wax melting and wax flow control component and a feeding tray displacement servo component, and setting the wax coating component to the side of the feeding tray displacement servo component, setting the ceramic core feeding tray component on the feeding tray displacement servo component, connecting the wax melting and wax flow control component and the wax coating component through pipelines, and using the feeding tray displacement servo component to drive the ceramic core feeding tray component to rotate and pitch. This invention realizes the automated operation of the wax filling process and flexible wax filling at multiple angles, thereby improving the consistency of wax filling quality and production efficiency.

[0021] (2) By setting the end of the first waxing needle in the waxing assembly to a duckbill structure, the present invention solves the problems of small single waxing coverage area and long movement path of the waxing robot, increases the single waxing width, reduces the movement path length, and thus improves the waxing efficiency.

[0022] (3) By setting a heating plate in the angle rotating part and placing the heating plate between the ceramic core flipping plate and the feeding tray, the present invention solves the problem of uneven filling caused by rapid solidification of wax liquid after contact with cold core, realizes the control of the solidification speed of wax liquid, and thus improves the wax filling quality.

[0023] (4) By setting up a multi-needle adjustable rotating frame, the rotating frame is provided with multiple needle mounting holes and positioning grooves. The positioning protrusions on the positioning block are engaged in the positioning grooves to achieve circumferential positioning, which solves the problem of cumbersome operation of switching waxing needles of different specifications, realizes the rapid switching of waxing needles, and thus improves the flexibility of wax filling operation.

[0024] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0025] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0026] Figure 1 This is a schematic diagram of the overall structure of the automatic wax filling system for ceramic cores according to Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the waxing component of the automatic waxing system for ceramic cores according to Embodiment 1 of the present invention; Figure 3This is a schematic diagram of the waxing needle in the automatic waxing system for ceramic cores according to Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the ceramic core feeding tray assembly of the automatic wax filling system for ceramic cores according to Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the feeding tray of the automatic wax filling system for ceramic cores according to Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the angle rotating component of the automatic wax filling system for ceramic cores according to Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of the protective cover base assembly of the automatic wax filling system for ceramic cores according to Embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the multi-needle adjustable rotating frame of the automatic wax filling system for ceramic cores according to Embodiment 2 of the present invention; Figure 9 for Figure 8 A magnified view of part A; Figure 10 This is a schematic diagram of the rotating shaft and pin mounting hole of the automatic wax filling system for ceramic cores in Embodiment 2 of the present invention.

[0027] Figure label: 1-Waxing assembly; 11-Robot control cabinet; 12-Waxing robot; 13-Robot end effector mounting base; 14-Tool mounting plate; 15-Strip automatic spray gun; 16-Waxing gun fixing rod; 17-First waxing needle; 2-Ceramic core loading tray assembly; 21-Loading tray; 211-Cone pin locking device; 212-Sensor bracket; 213-Diffuse reflection photoelectric sensor; 214-Clamp bushing; 215-Ceramic core positioning fixture base plate; 216-Stop pin; 217-Handle; 22-Positioning fixture; 3- Wax melting and wax flow control components; 31- Wax melting parts; 32- Wax flow control components; 4-Electrical control components; 41-Electrical cabinet; 42-Safety light curtain; 43-Button box; 44-Position sensor; 45-Limit switch; 46-Human machine interface; 47-Tricolor indicator light; 5-Feeding pallet displacement servo assembly; 51-Angle rotating component; 511-Servo motor; 512-Active side output plate; 513-Origin sensing element; 514-Slotted photoelectric sensor; 515-Slotted photoelectric fixing bracket; 516-Base plate; 517-L-shaped fixing bracket; 518-Tire detection sensor bracket; 519-Proximity sensor; 520-Slewing support bearing; 521-Driven side upright plate; 522-Driven side follower plate; 523-Cable tie fixing seat; 524-Clamping positioning pin; 525-Heating plate; 526-Clamping pin; 527-Ceramic core flipping plate; 528-Active side upright plate; 52-Servo CNC rotary table; 53-Separator; 54-Rotary table base plate; 6-Guard base assembly; 61-Guard; 62-Lock lock; 63-Equipment base; 64-Fuma wheel; 7-Multi-needle adjustable rotating frame; 71-Fixed base; 72-Connecting base; 721-Rotating shaft; 73-Rotating frame; 731-Positioning groove; 732-Needle mounting hole; 74-Positioning block; 741-Positioning protrusion; 75-Second waxing needle. Detailed Implementation

[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which 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 intended to limit the scope of the present invention.

[0029] Example 1 This embodiment aims to provide an automated wax-filling system for ceramic cores, addressing one of the problems in existing technologies: reliance on manual labor for wax filling, poor consistency in filling quality, and low production efficiency. For example... Figure 1 As shown, the automatic wax-filling system for ceramic cores includes a wax coating assembly 1, a ceramic core loading tray assembly 2, a wax melting and wax flow control assembly 3, and a loading tray positioning servo assembly 5. The wax coating assembly 1 is located to the side of the loading tray positioning servo assembly 5 and is used to perform the wax-filling action. The ceramic core loading tray assembly 2 is mounted on the loading tray positioning servo assembly 5 and is used to fix the ceramic core to be filled with wax. The wax melting and wax flow control assembly 3 is connected to the wax coating assembly 1 via a pipeline and is used to heat solid wax into liquid wax and supply it to the wax coating assembly 1. The loading tray positioning servo assembly 5 is used to drive the ceramic core loading tray assembly 2 to rotate and tilt.

[0030] like Figure 2As shown, the waxing assembly 1 includes a robot control cabinet 11, a waxing robot 12, a robot end effector mount 13, and a tool mounting plate 14. The robot control cabinet 11 and the waxing robot 12 are mounted on the equipment base 63 of the protective cover base assembly 6. The robot control cabinet 11 is electrically connected to the waxing robot 12. The robot end effector mount 13 is located at the end of the waxing robot 12. The tool mounting plate 14 is mounted on the robot end effector mount 13. The waxing robot 12 drives the tool mounting plate 14 to move along a preset trajectory.

[0031] To address the issue of small coverage area per wax application, the waxing assembly 1 also includes a strip-shaped automatic spray gun 15, a wax gun fixing rod 16, and a first waxing needle 17. The wax gun fixing rod 16 is mounted on the tool mounting plate 14, and the strip-shaped automatic spray gun 15 is mounted on the wax gun fixing rod 16. The first waxing needle 17 is located at the wax outlet of the strip-shaped automatic spray gun 15.

[0032] Preferably, such as Figure 3 As shown, the end of the first waxing needle 17 is configured as a duckbill structure. The duckbill structure can increase the width of a single wax application and reduce the movement path length of the waxing robot 12, thereby improving the wax filling efficiency.

[0033] like Figure 4 , Figure 5 As shown, the ceramic core loading tray assembly 2 includes a loading tray 21 and a positioning fixture 22. The positioning fixture 22 is disposed on the loading tray 21. The upper surface of the positioning fixture 22 is provided with a contour groove that matches the shape of the ceramic core. The contour groove is used to fix the ceramic core and serves as the boundary of the wax-filled area, preventing wax from flowing into the non-wax-filled area.

[0034] Specifically, the loading pallet 21 includes a tapered pin locking device 211, a clamping bushing 214, a ceramic core positioning fixture base plate 215, a stop pin 216, and a handle 217. The ceramic core positioning fixture base plate 215 has a plate-shaped rectangular structure. The tapered pin locking device 211 is disposed on the ceramic core positioning fixture base plate 215. The clamping bushing 214 is configured with a through hole, and two clamping bushings 214 are disposed on both sides of the long side of the ceramic core positioning fixture base plate 215. The stop pin 216 is disposed on the side of the ceramic core positioning fixture base plate 215 and is used to provide auxiliary positioning when placing the loading pallet 21. Two handles 217 are disposed on the upper surface of the ceramic core positioning fixture base plate 215 and are used for manually picking up and placing the loading pallet 21.

[0035] It should be noted that the tapered pin locking device 211 is used to cooperate with the clamping pin 526 of the loading pallet displacement servo component 5 to achieve rapid locking and releasing of the loading pallet 21. The clamp bushing 214 is used to cooperate with the clamp positioning pin 524 of the loading pallet displacement servo component 5 to achieve precise positioning of the loading pallet 21.

[0036] Furthermore, the loading tray 21 also includes a sensor bracket 212 and a diffuse reflection photoelectric sensor 213. The sensor bracket 212 is disposed on the side of the positioning fixture 22. The diffuse reflection photoelectric sensor 213 is disposed on the sensor bracket 212, with its detection head facing the contour groove of the positioning fixture 22. The diffuse reflection photoelectric sensor 213 is used to detect whether a ceramic core is placed in the contour groove and sends the detection signal to the electrical control component 4 of the automatic wax filling system for ceramic cores.

[0037] like Figure 4 As shown, the loading pallet positioning servo assembly 5 includes an angle rotating component 51, a servo CNC turntable 52, a partition component 53, and a turntable base plate 54. The servo CNC turntable 52 is mounted on the equipment base 63 of the protective cover base assembly 6, and is used to drive the turntable base plate 54 to rotate around a vertical axis. The turntable base plate 54 is mounted on the output flange of the servo CNC turntable 52. The partition component 53 is mounted on the turntable base plate 54, dividing the space above the turntable base plate 54 into two workstations. Two sets of angle rotating components 51 are provided, respectively mounted on the turntable base plate 54 and located on both sides of the partition component 53. The angle rotating components 51 are used to mount the loading pallet 21.

[0038] To solve the problem of adjusting the angle of the ceramic core during the wax filling process, such as Figure 6 As shown, the angle rotating component 51 includes a servo motor 511, an active-side output plate 512, a rotary support bearing 520, a driven-side follower plate 522, a ceramic core flipping plate 527, an active-side upright plate 528, a driven-side upright plate 521, and a base plate 516. Both the active-side upright plate 528 and the driven-side upright plate 521 are mounted on the base plate 516. The servo motor 511 is mounted on the side of the active-side upright plate 528. The active-side output plate 512 is mounted on the output shaft of the servo motor 511. The outer ring of the rotary support bearing 520 is mounted on the driven-side upright plate 521, and the driven-side follower plate 522 is mounted on the inner ring of the rotary support bearing 520. One end of the ceramic core flipping plate 527 is mounted on the active-side output plate 512, and the other end is mounted on the driven-side follower plate 522.

[0039] Furthermore, the servo motor 511 drives the active-side output plate 512 to rotate, causing the ceramic core flipping plate 527 and the driven-side follower plate 522 to rotate around the slewing support bearing 520, enabling the ceramic core flipping plate 527 to achieve a pitch movement of ±30 degrees around the horizontal axis. By setting the slewing support bearing 520, the smoothness of the rotation of the ceramic core flipping plate 527 and its load-bearing capacity are achieved, allowing the ceramic core to cooperate with the waxing component 1 at any angle during the wax filling process, thus improving the flexibility of wax filling.

[0040] To address the issues of locating the rotation origin of the angle rotating component 51 and detecting tray placement, the angle rotating component 51 further includes an origin sensing plate 513, a slotted photoelectric sensor 514, a slotted photoelectric fixing bracket 515, a proximity sensor 519, a tire detection sensor bracket 518, and an L-shaped fixing bracket 517. The slotted photoelectric fixing bracket 515 is mounted on the base plate 516. The slotted photoelectric sensor 514 is mounted on the slotted photoelectric fixing bracket 515. The origin sensing plate 513 is located on the side of the active-side output plate 512, with its end extending into the detection slot of the slotted photoelectric sensor 514. The L-shaped fixing bracket 517 is located on the top of the driven-side upright plate 521. The tire detection sensor bracket 518 is mounted on the L-shaped fixing bracket 517. The proximity sensor 519 is mounted on the tire detection sensor bracket 518, with its detection head pointing vertically upwards.

[0041] Furthermore, the origin sensing plate 513, in conjunction with the slotted photoelectric sensor 514, is used to determine the zero-point position of the ceramic core flipping plate 527, enabling the angle rotating component 51 to automatically return to the horizontal reference position before each wax filling operation. The proximity sensor 519 is used to detect whether the loading tray 21 is placed in place, preventing the equipment from being started when the tray is not installed correctly, thus improving operational safety.

[0042] To address the issues of rapid positioning and locking of the loading tray 21 and control of the wax solidification speed during the ceramic core flipping process, the angle rotating component 51 also includes a clamping positioning pin 524, a clamping pin 526, a heating plate 525, and a cable tie fixing seat 523. Both the clamping positioning pin 524 and the clamping pin 526 are located on the upper surface of the ceramic core flipping plate 527. The clamping positioning pin 524 engages with the clamping bushing 214 at the bottom of the loading tray 21 for precise positioning, while the clamping pin 526 engages with the tapered pin locking device 211 of the loading tray 21 for rapid locking. The heating plate 525 is placed on the upper surface of the ceramic core flipping plate 527, positioned between the ceramic core flipping plate 527 and the loading tray 21. The heating plate 525 preheats the ceramic core, controls the solidification speed of the wax after filling, and prevents uneven filling caused by rapid wax solidification. The cable tie fixing seat 523 is located on the side of the ceramic core flip plate 527. The cable tie fixing seat 523 is used to fix the wire harness and prevent the wire harness from interfering with the movement of the equipment.

[0043] like Figure 7 As shown, the wax melting and wax flow control assembly 3 includes a wax melting component 31 and a wax flow control component 32. The wax melting component 31 is used to heat and melt solid wax into liquid wax. The wax melting component 31 has an internal liquid level sensor, which is used to detect the amount of remaining wax inside the wax melting component 31 in real time. The wax melting component 31 has a wax replenishment prompt function.

[0044] Furthermore, the wax flow control component 32 is equipped with an electrically heated wax delivery hose to maintain a stable temperature of the liquid wax during operation. It features heating and heat preservation functions to keep the wax in a liquid state, with a temperature control accuracy of ±1.5℃ and an over-temperature alarm function. The wax flow control component 32 is also equipped with a wax receiving tray, located below the wax outlet. Before each wax injection, the wax flow control component 32 squeezes a small, metered amount of wax into the receiving tray to prevent wax droplets from forming during the injection process.

[0045] like Figure 7 As shown, the electrical control assembly 4 includes an electrical cabinet 41, a safety light curtain 42, and a button box 43. The electrical cabinet 41 is mounted on the equipment base 63 of the protective cover base assembly 6. The cabinet 41 contains multiple programmable logic controllers (PLCs) for storing multiple part recipes and allowing automatic wax filling to begin after tooling and wax temperature confirmation. The safety light curtain 42 is located at the opening of the protective cover 61 of the protective cover base assembly 6. The safety light curtain 42 detects personnel approaching and stops automatic wax filling when personnel approach. The button box 43 is located on the outer wall of the protective cover 61 and is used to stop automatic wax filling in case of an emergency or when the ceramic core needs to be removed or placed.

[0046] Furthermore, the electrical control component 4 also includes a position sensor 44, a limit switch 45, a human-machine interface 46, and a tri-color light 47. The position sensor 44 and limit switch 45 are mounted on the servo CNC rotary table 52 of the loading tray positioning servo component 5. The position sensor 44 and limit switch 45 are used to detect the current position and angle of the loading tray positioning servo component 5 to position the ceramic core and cooperate with the waxing component 1 to complete automatic wax filling. The human-machine interface 46 is located on the outer wall of the protective cover 61 and is equipped with a touch screen for monitoring the working status of the automatic wax filling system. The tri-color light 47 is located on the top of the protective cover 61 and is used to indicate the standby status, working status, and work completion status of the equipment.

[0047] like Figure 7 As shown, the protective cover base assembly 6 includes a protective cover 61, a latch lock 62, an equipment base 63, and casters 64. The equipment base 63 is a frame structure. The protective cover 61 is placed over the equipment base 63 and is fixedly connected to the equipment base 63. The protective cover 61 is used to isolate the internal moving parts of the equipment, and the equipment base 63 is used to install and support other components. The latch lock 62 is located between the opening door panel of the protective cover 61 and the fixed frame, and is used to lock the opening door panel of the protective cover 61. The casters 64 are located at the four corners of the bottom surface of the equipment base 63, and are used to realize the movement and positioning locking of the equipment.

[0048] The working process of the above-mentioned automatic wax filling system for ceramic cores is as follows: First, the operator places the ceramic core into the contour groove of the positioning fixture 22. After the diffuse reflection photoelectric sensor 213 detects the core, the operator holds the handle 217 and places the loading tray 21 onto the ceramic core flipping plate 527 of the angle rotating component 51. The clamp bushing 214 cooperates with the clamp positioning pin 524 to achieve positioning, and the rotating tapered pin locking device 211 locks it with the clamping pin 526. Second, the automatic program is started through the human-machine interface 46. The servo CNC turntable 52 drives the turntable base plate 54 to rotate, rotating the loading tray 21 containing the core to the working area of ​​the waxing robot 12. Third, after the proximity sensor 519 confirms that the loading tray 21 is in place, the electrical control component 4 controls the servo motor 511 to drive the ceramic core flipping plate 527 to rotate to a preset angle according to the preset program, and at the same time controls the waxing robot 12 to move the first waxing needle 17. Fourth, the wax flow control unit 32 delivers a measured amount of liquid wax to the strip-shaped automatic spray gun 15, and the wax is applied to the surface of the ceramic core via the first waxing needle 17. During the wax filling process, the heating plate 525 maintains the core temperature, allowing the wax to solidify slowly. Fifth, after the wax filling of one core is completed, the servo CNC turntable 52 rotates 180°, and the operator picks up and places the core at another station, achieving continuous operation.

[0049] In this embodiment, the waxing robot 12 is controlled by the electrical control component 4 to link with the loading tray displacement servo component 5, thereby automating the wax filling process. The angle rotating component 51 drives the ceramic core flipping plate 527 to perform pitch movements within a ±30° range according to a preset program, effectively cooperating with the waxing robot 12 to complete automatic wax filling, meeting the wax filling requirements of different core angles and preventing wax drip turbulence. Simultaneously, the waxing robot 12 drives the first waxing needle 17, with a duckbill-shaped end, to move along a preset trajectory, increasing the single waxing width and shortening the movement path of the waxing robot 12. The heating plate 525 heats the ceramic core during the wax filling process, controlling the solidification speed of the wax liquid and avoiding uneven filling caused by rapid solidification. The servo CNC turntable 52 has two stations; one station performs wax filling while the other station performs core loading and unloading operations, enabling continuous operation. This structural design provides an automated, high-precision, and high-efficiency wax filling mode, improving the consistency of ceramic core wax filling quality and production efficiency.

[0050] Example 2 Based on Embodiment 1, this embodiment addresses the issues of cumbersome replacement of the first waxing needle 17 and the inability to quickly switch between different shaped waxing needles in a single operation by providing a multi-needle adjustable rotating frame 7. The multi-needle adjustable rotating frame 7 is used to replace the first waxing needle 17 and is mounted on the strip-shaped automatic spray gun 15.

[0051] like Figure 8As shown, the multi-needle adjustable rotating frame 7 includes a fixed base 71, a connecting base 72, a rotating frame 73, and a positioning block 74. The fixed base 71 is used for fixed connection with the strip-shaped automatic spray gun 15. The connecting base 72 is disposed at the lower end of the fixed base 71. The rotating frame 73 is rotatably disposed on the connecting base 72. The positioning block 74 is disposed on the side of the fixed base 71.

[0052] Specifically, the outer wall of the rotating frame 73 is provided with multiple positioning grooves 731, which are evenly distributed along the circumference of the rotating frame 73. The bottom of the rotating frame 73 is provided with multiple needle mounting holes 732, which are circular through holes, and are also evenly distributed along the circumference of the rotating frame 73. The number of positioning grooves 731 is equal to the number of needle mounting holes 732, and the position of each positioning groove 731 corresponds one-to-one with the position of a needle mounting hole 732. The number of needle mounting holes 732 is set to three or more.

[0053] Specifically, the positioning block 74 is fixedly disposed on the side of the fixing base 71. The positioning block 74 is provided with a positioning protrusion 741, such as... Figure 9 As shown, the shape of the positioning protrusion 741 matches the shape of the positioning groove 731. When the rotating frame 73 rotates to a preset angle, the positioning protrusion 741 engages with the corresponding positioning groove 731, thereby achieving circumferential positioning of the rotating frame 73.

[0054] Furthermore, the multi-needle adjustable rotating frame 7 also includes a second waxing needle 75, which is disposed on the rotating frame 73. The second waxing needle 75 is fixedly disposed within the needle mounting hole 732. The lower end of the second waxing needle 75 has a round opening structure, which can reduce the flow resistance of the wax liquid, allowing the wax liquid to flow out evenly and avoiding flow interruption or splashing during the waxing process. When the rotating frame 73 is limited, the upper end of the selected second waxing needle 75 is aligned with the lower end of the fixed base 71, forming a through wax delivery channel.

[0055] Specifically, such as Figure 10 As shown, the connecting seat 72 includes a rotating shaft 721, which is fixedly connected to the connecting seat 72. A rotating frame 73 has a central through hole, through which it is fitted onto the rotating shaft 721. The diameter of the end of the rotating shaft 721 is larger than the diameter of the central through hole of the rotating frame 73 to prevent the rotating frame 73 from detaching from the rotating shaft 721. The rotating frame 73 is capable of rotating relative to the connecting seat 72 around the rotating shaft 721.

[0056] The working process of the multi-needle adjustable rotating frame 7 is as follows: The operator selects the first waxing needle 17 and the second waxing needle 75 according to the wax filling requirements of the ceramic core. The rotating frame 73 is manually rotated so that the target second waxing needle 75 is directly below the fixed seat 71. The positioning protrusion 741 engages with the corresponding positioning groove 731, locking the rotating frame 73. At this time, the inner cavity of the fixed seat 71 is aligned and connected with the internal channel of the target second waxing needle 75. The wax output from the strip-shaped automatic spray gun 15 flows into the second waxing needle 75 through the fixed seat 71, completing the wax filling. When it is necessary to switch to a different specification of the first waxing needle 17, simply rotate the rotating frame 73 to the next station.

[0057] This embodiment achieves rapid switching between the first waxing needle 17 and the second waxing needle 75 by setting a rotatable rotating frame 73 and a positioning block 74, reducing the tedious operation of repeatedly disassembling and assembling a single waxing needle, and improving the flexibility and efficiency of wax filling operations.

[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic wax-filling system for ceramic cores, characterized in that, It includes a waxing component (1), a ceramic core feeding tray component (2), a wax melting and wax flow control component (3), and a feeding tray displacement servo component (5). The waxing component (1) is located on the side of the loading tray displacement servo component (5); The ceramic core feeding tray assembly (2) is mounted on the feeding tray displacement servo assembly (5); the wax melting and wax flow control assembly (3) is connected to the wax coating assembly (1) via a pipeline; The loading tray displacement servo component (5) is used to drive the ceramic core loading tray component (2) to rotate and pitch.

2. The automatic wax-filling system for ceramic cores according to claim 1, characterized in that, The waxing assembly (1) includes a waxing robot (12) and a first waxing needle (17).

3. The automatic wax-filling system for ceramic cores according to claim 1, characterized in that, The ceramic core feeding tray assembly (2) includes a feeding tray (21) and a positioning fixture (22). The upper surface of the positioning fixture (22) is provided with a contour groove that matches the shape of the ceramic core.

4. The automatic wax-filling system for ceramic cores according to claim 1, characterized in that, The loading pallet displacement servo component (5) includes a servo CNC turntable (52) and an angle rotating component (51).

5. The automatic wax-filling system for ceramic cores according to claim 4, characterized in that, The angle rotating component (51) includes a servo motor (511) and a ceramic core flip plate (527). The servo motor (511) drives the ceramic core flip plate (527) to pitch.

6. The automatic wax-filling system for ceramic cores according to claim 1, characterized in that, The wax melting and wax flow control assembly (3) includes a wax melting component (31) and a wax flow control component (32).

7. The automatic wax-filling system for ceramic cores according to claim 3, characterized in that, The loading tray (21) includes a tapered pin lock (211) and a clamp bushing (214).

8. The automatic wax-filling system for ceramic cores according to claim 2, characterized in that, The waxing robot (12) is used to drive the first waxing needle (17) to move along a preset trajectory.

9. The automatic wax-filling system for ceramic cores according to claim 5, characterized in that, The angle rotating component (51) also includes an origin sensing plate (513) and a slotted photoelectric sensor (514). The slotted photoelectric sensor (514) is used to detect the origin sensing plate (513) to determine the zero position of the ceramic core flip plate (527).

10. The automatic wax-filling system for ceramic cores according to claim 4, characterized in that, The servo CNC turntable (52) is used to drive the turntable base plate (54) to rotate around the vertical axis.

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