Environment-friendly wax mold cleaning line

Abstract

The present application relates to a wax mold cleaning device, which is an environmental-friendly cleaning line capable of improving cleaning effect and efficiency and reducing water resource waste. The device comprises a cleaning tank, a main frame, an annular flow line, a hanging rail, a water injection device, a cleaning agent adding device, a waste water recovery system and a hanging rod. The main frame is provided with the annular flow line on which the cleaning tank is installed, and the hanging rail above the annular flow line. The hanging rail is internally provided with a second flow line on which the hanging rod is installed in a reverse flow direction and at equal intervals. The hanging rod is internally provided with a lifting device. The main frame is divided into four sections, i.e. a first cleaning position, a second cleaning position, a water injection position and a drainage position. The cleaning agent adding device is arranged above the cleaning tank at the first section of the second cleaning position. The water injection device is arranged above the cleaning tank at the water injection position. The cleaning tank is provided with a quick drainage valve at the bottom. The main frame is provided with the waste water recovery system below the cleaning tank.

Description

Technical Field

[0001] This invention relates to the field of wax mold cleaning equipment, and in particular to an environmentally friendly wax mold cleaning line. Background Technology

[0002] The purpose of wax model cleaning is to remove parting agent, wax debris, and perform moderate etching (degreasing) on ​​the wax model surface, improving the wettability between the wax model and the topcoat. For environmental protection and pollution-free operation, aqueous solutions with added special surfactants have been developed, creating modern wax model cleaning agents. Currently, the main methods for cleaning wax models are manual cleaning or automated cleaning lines. Before cleaning, wax debris is blown off the wax model surface, and then the model is immersed in a cleaning tank containing cleaning solution for a few seconds, gently agitated to improve the cleaning effect. Because the cleaning solution in the tank gradually becomes contaminated with each cleaning cycle, the cleaning effect gradually diminishes. Even wax models cleaned in the same tank can show significant differences in cleaning results. To avoid inconsistent cleaning results, not only is frequent replacement of the cleaning solution necessary, but a final rinse with clean water is also required after the wax model is removed from the cleaning tank to remove any dirt adhering to the surface when removed from the cleaning solution. In summary, current cleaning methods limit the number of times the cleaning solution in the cleaning tank can be used. To ensure the final cleaning effect, frequent replacement of the cleaning solution and large amounts of water rinsing are required, leading to water waste and hindering environmentally friendly production. Therefore, there is a market demand for an environmentally friendly wax mold cleaning line that can improve cleaning effectiveness and efficiency while reducing water waste. Summary of the Invention

[0003] To address the shortcomings of the existing technology, this invention provides an environmentally friendly wax mold cleaning line that can improve cleaning effect and efficiency while effectively reducing water waste, thus solving the aforementioned problems.

[0004] This invention discloses an environmentally friendly wax model cleaning line, comprising a cleaning tank, a main frame, a circular assembly line, a hanging rail, a water injection device, a cleaning agent addition device, a wastewater recycling system, and hanging rods for fixing the wax model. The main frame has a clockwise rotating circular assembly line horizontally arranged on it, with several cleaning tanks evenly spaced along the assembly line. A hanging rail is positioned above the circular assembly line on the main frame, and a clockwise rotating second assembly line is built into the hanging rail. Several hanging rods with spacing equal to the spacing between the cleaning tanks are arranged on the second assembly line, and each hanging rod has a built-in lifting device. The main frame is divided into four sections by workstations, and these sections are further divided counter-clockwise into a first-stage cleaning station, a second-stage cleaning station, a water injection station, and a drainage station. A cleaning agent addition device is located above the cleaning tank at the first section of the second-stage cleaning station, and a water injection device is located above the cleaning tank at the water injection station, with the water injection device connected to a water pipe. A quick-drain valve is located at the bottom of the cleaning tank, and a wastewater recycling system is located below the cleaning tank on the main frame.

[0005] Furthermore, each of the cleaning tanks is equipped with a cleaning device, which includes a cleaning rod and a reciprocating mechanism. Horizontal rails are provided on both sides of the inner wall of the cleaning tank. The cleaning rod is slidably positioned within the cleaning tank after its two ends are inserted into the rails. A hollow rotating shaft is provided inside the cleaning rod, with opening slots on both sides. Passage slots that mate with the opening slots are provided on both sides of the cleaning rod. An extension end of the cleaning rod extends from the top of the rotating shaft. Trigger ends that mate with the extension end are provided on both sides of the inner wall of the cleaning tank. A flexible hose groove connecting the bottom and the rails is provided within the cleaning tank. The upper part of the flexible hose groove is shaped like an inverted triangle. Flexible hoses are provided at both ends of the cleaning rod, and the bottoms of the flexible hoses are retractable and positioned at the bottom of the flexible hose groove. A reciprocating mechanism that drives the cleaning rod to move horizontally is provided within the cleaning tank. A controller is connected to the lifting device via the reciprocating mechanism. When the lifting device retracts each time, the reciprocating mechanism completes one single-stroke movement.

[0006] Furthermore, the reciprocating mechanism includes a drive gear, a driven wheel, a toothed belt, a pulley, and a belt. The drive gear and two driven wheels are respectively installed on the outer wall of the cleaning tank. The two driven wheels are located on opposite sides of the outer wall of the cleaning tank and are connected by a toothed belt. The drive gear meshes with the toothed belt. An axle is installed on the axis of each driven wheel, penetrating the cleaning tank. A pulley is installed on each axle, located on opposite sides of the inner wall of the cleaning tank. Two pulleys on different axles are connected by a belt. The two ends of the cleaning rod are fixed to the two belts respectively. An upper guide rail and a lower guide rail are respectively installed on the main frame, cooperating with the drive gear. The upper and lower guide rails are respectively provided with upper and lower external teeth that are staggered and cooperate with the drive gear.

[0007] Furthermore, the cleaning device also includes a cleaning base, and each belt is equipped with a cleaning base. The two ends of the cleaning rod are respectively slidably positioned between two cleaning bases. A drain pipe is provided on the outside of the cleaning base, passing through the belt and connected to a hose.

[0008] Furthermore, the environmentally friendly wax mold cleaning line also includes a rinsing device for rinsing the cleaning tank. The rinsing device is located at the bottom of the hanging rail above the tail section of the drainage position, and a second lifting device is provided between the rinsing device and the hanging rail.

[0009] Furthermore, the environmentally friendly wax mold cleaning line also includes a drying system, which includes an air outlet device and a drying cover; the drying cover is fixedly installed at the bottom of the hanging rail and located above the water injection level; air outlet devices are provided on both sides of the inner wall of the drying cover, and the water injection device is located at the bottom of the drying cover.

[0010] Furthermore, a water collection tank is provided at the bottom of the inner wall of the air-drying cover, and the water collection tank is connected to the wastewater recycling system through a recycling pipe.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. Improved Cleaning Effect and Efficiency. The clockwise rotating circular cleaning line divides the cleaning tanks into multiple stages based on cleanliness, while the counter-clockwise rotating U-shaped hanging rail wax model line enables rapid, automated, continuous cleaning of the cleaning tanks and wax models. Due to the different rotation directions, the cleanliness level of each wax model in the cleaning tank it connects to remains essentially constant at any cleaning station. Furthermore, as the equipment operates, the cleanliness level of the cleaning tanks the wax models enter increases, effectively improving the cleaning effect. Simultaneously, it ensures that wax models cleaned on the same line achieve consistent cleaning results.

[0013] 2. By replacing the use of running water to rinse the cleaned wax molds with a cleaning tank filled with clean water, water consumption can be reduced. The cleanliness of the water in the cleaning tank connected to the wax mold is controlled by rotating and shifting the equipment during operation. Mechanisms for drainage, rinsing, water injection, and adding cleaning agent are set up at fixed workstations. The wax molds initially enter the cleaning tank with the lowest cleanliness after the equipment passes through the line. As the equipment passes through the line, the cleanliness of the cleaning solution in the cleaning tank gradually increases until the last cleaning, when the wax mold is connected to a newly injected, unused cleaning tank. This ensures that each wax mold completes a cleaning cycle after passing through the cleaning line.

[0014] 3. Each cleaning tank is equipped with a cleaning device for scraping off dirt from the liquid surface. This device can clean the dirt layer left on the liquid surface after each wax model cleaning, thereby improving the cleanliness of the cleaning solution and optimizing the cleaning environment for the next wax model cleaning. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a top view of the overall structure of the present invention;

[0017] Figure 3 This is a front cross-sectional view of the present invention;

[0018] Figure 4 This is a left-side cross-sectional view of the present invention;

[0019] Figure 5 This is a front sectional view of the hose groove;

[0020] Figure 6 This is a schematic diagram of the cleaning tank.

[0021] Figure 7 This is a front sectional view of the cleaning tank;

[0022] Figure 8 This is a right-side sectional view of the cleaning tank;

[0023] Figure 9 for Figure 7 A magnified view of a local detail A;

[0024] Figure 10 for Figure 8 A magnified view of a local detail, B;

[0025] Figure 11 This is a schematic diagram of the reciprocating mechanism.

[0026] In the diagram: 1. Cleaning tank; 101. Quick drain valve; 102. Horizontal rail; 103. Trigger end; 104. Hose groove; 105. Drive rail; 106. Water baffle; 2. Main frame; 21. First-stage cleaning position; 22. Second-stage cleaning position; 23. Water injection position; 24. Drainage position; 202. Upper guide rail; 2021. Upper external gear; 203. Lower guide rail; 2031. Lower external gear; 3. Circular assembly line; 4. Suspended rail; 401. Second assembly line; 402. Crossbeam; 5. Water injection device; 6. Cleaning agent addition device; 7. Wastewater recovery system; 8. Suspension rod; 801. Lifting device; 9. Cleaning device; 91. Drive wheel; 901. Cleaning rod; 9011. Through groove; 9012. Drain outlet; 9013. Limiting rod; 9014. Reciprocating... Mechanism 902, drive gear 9021, auxiliary wheel 90211, driven wheel 9022, axle 90221, toothed belt 9023, pulley 9024, belt 9025, water baffle 90251, rotating shaft 903, opening groove 9031, protruding end 9032, hose 904, metal pipe 9041, cleaning base 905, sewage pipe 9051, limiting step 9052, cavity 9053, flushing device 10, second lifting device 1001, plate 1002, nozzle 1003, flushing water pipe 1004, air drying system 11, air outlet device 1101, air drying cover 1102, water collection tank 11021, recovery pipe 11022. Detailed Implementation

[0027] To better understand this invention, the following is combined with... Figures 1 to 11 The embodiments of the present invention will be explained in detail below.

[0028] It should be noted that the directions "front, back, left, right, up, down" mentioned in the text are all relative to the direction of the text. Figure 1 The directions are based on "front, back, left, right, up, down".

[0029] This invention discloses an environmentally friendly wax model cleaning line, comprising a cleaning tank 1 as in the prior art, and also including a newly designed main frame 2, a circular conveyor line 3, a hanging rail 4, a water injection device 5, a cleaning agent addition device 6, a wastewater recycling system 7, and a hanging rod 8 for fixing the wax model. Figures 1 to 4 As shown, a clockwise rotating annular conveyor line 3 is horizontally arranged on the main frame 2, and several cleaning tanks 1 are evenly spaced on the annular conveyor line 3. The annular conveyor line 3 adopts existing technology, using a chain-type guide rail conveyor line, with the cleaning tanks 1 fixed at equal intervals on a certain link of the chain. A hanging rail 4 is arranged on the main frame 2 above the annular conveyor line 3, and a counterclockwise rotating second conveyor line 401 is built into the hanging rail 4. Several hanging rods 8 with spacing equal to the spacing of the cleaning tanks 1 are arranged on the second conveyor line 401. The hanging rail 4 and the second conveyor line 401 are annular, but their dimensions are larger than the annular conveyor line 3 below. For clarity of view, Figure 1 and Figure 2The central hanging rail 4 and the second production line 401 have been cut, and only a part of them is shown. The other part of the hanging rail 4 actually corresponds to the wax model loading and unloading station. The second production line 401 here also adopts existing technology, using a chain-type guide rail conveyor line, with the hanging rods fixed at equal intervals on a certain link of the chain. The hanging rod 8 has a built-in lifting device 801 (electric telescopic rod). The bottom end of the hanging rod 8 is used to clamp and fix the wax model, and the lifting device 801 is used to put the wax model into the cleaning tank 1 for cleaning or to remove it.

[0030] like Figure 2 As shown, from the top view of the overhead rail 4, the entire main frame 2 is divided into four sections according to the workstation (e.g., Figure 2 Divided by dashed lines, the four sections are sequentially divided counterclockwise into a first-stage cleaning position 21, a second-stage cleaning position 22, a water injection position 23, and a drainage position 24. A cleaning agent adding device 6, using a pump, is installed above the cleaning tank 1 at the first section of the second-stage cleaning position 22 to pump the cleaning agent mixed with water into the cleaning tank 1. A water injection device 5 (consisting of a water pump and several faucets) is installed above the cleaning tank 1 at the water injection position 23, connected to a water source. A quick-drain valve 101 (using existing technology) is installed at the bottom of the cleaning tank 1. A wastewater tank, with a V-shaped vertical cross-section, is installed on the main frame 2 below the cleaning tank 1 and is connected to a wastewater pipe to form a wastewater recycling system 7.

[0031] The main frame 2 continuously circulates and repositions the cleaning tank 1 via a clockwise rotating circular conveyor line 3. When the cleaning tank 1 passes the water injection point 23, it is injected with clean water by the water injection device 5; when it passes the first section of the second-stage cleaning point 22, it is injected with cleaning agent by the cleaning agent addition device 6, so that the clean water in the cleaning tank 1 mixes with the cleaning agent to form a cleaning solution; when the cleaning tank 1 passes the drain point 21, the quick drain valve 101 opens and drains the cleaning solution into the wastewater tank. The hanging rail 4 continuously transports the wax model to be cleaned to the top of the cleaning tank 1 via a counterclockwise rotating second conveyor line 401, and sequentially passes through the first-stage cleaning point 21, the second-stage cleaning point 22, and the water injection point 23. When the wax model is aligned vertically with the cleaning tank 1, the circular conveyor line 3 and the second conveyor line 401 simultaneously pause for a few seconds to allow time for the wax model to be cleaned. When the wax model passes through the first-stage cleaning station 21 and the second-stage cleaning station 22, the lifting device 801 extends, allowing the wax model to enter the cleaning tank 1, and then retracts through the lifting device 801 to complete one cleaning cycle.

[0032] Each time the wax model is removed from the cleaning tank 1, the dirt (wax debris and grease, etc.) washed off will float on the surface of the cleaning fluid due to the influence of the cleaning solution, which can easily affect the next round of wax model cleaning. Therefore, each cleaning tank 1 is equipped with a cleaning device 9. Figure 5As shown, the cleaning device 9 includes a cleaning rod 901 and a reciprocating mechanism 902. Horizontal rails 102 are provided on both sides of the inner wall of the cleaning tank 1. The cleaning rod 901 is slidably disposed within the cleaning tank 1 after its two ends are inserted into the rails 102. A hollow rotating shaft 903 is provided inside the cleaning rod 901. Opening slots 9031 are provided on both sides of the rotating shaft 903. A through slot 9011 is provided on both sides of the cleaning rod 901 to mate with the opening slot 9031. The opening slot 9031 and the through slot 9011 have the same length, but the width of the opening slot 9031 is greater than that of the through slot 9011. Figure 6 and Figure 9 As shown, when the rotating shaft 903 rotates to one side at a certain angle within the cleaning rod 901, the top of the opening groove 9031 on the side with the same rotation direction is nearly aligned with the top of the passage groove 9011, and the opening groove 9031 and the passage groove 9011 on this side remain in a state of communication. Meanwhile, the bottom of the opening groove 9031 on the other side is nearly aligned with the top of the passage groove 9011, and the opening groove 9031 and the passage groove 9011 on this side are blocked due to misalignment. The top of the rotating shaft 903 is provided with an extension end 9032 extending out of the cleaning rod 901, and trigger ends 103 that cooperate with the extension end 9032 are provided on both sides of the inner wall of the cleaning tank 1. The cleaning tank 1 is provided with a hose groove 104 connecting the bottom and the horizontal rail 102. Both ends of the cleaning rod 901 are provided with hoses 904. The bottom of each hose 904 is retractable and located at the bottom of the hose groove 104. A weight-bearing metal tube 9041 is connected to the bottom end of each hose 904 to ensure that the hose 904 does not bend within the hose groove 104. Figure 5 As shown, the upper part of the hose groove 104 is designed as an inverted triangle, which facilitates the movement of the upper part of the hose 904 within the hose groove 104 and provides ample space for the movement of the hose 904. Figure 11 As shown, under normal conditions, the opening groove 9031 and the through groove 9011 are aligned. A reciprocating mechanism 902 is provided within the cleaning tank 1 to drive the cleaning rod 901 horizontally. Figure 5 As shown, the first embodiment of the reciprocating mechanism 902 is a combination of a drive wheel 91 and a drive motor. A drive wheel 91 driven by a drive motor is set at the top of the cleaning rod 901, and a drive rail 105 that cooperates with the drive wheel 91 is set on the inner wall of the cleaning tank 1. The reciprocating motion of the cleaning rod 901 is achieved by using the forward and reverse rotation of the drive wheel 91 in the drive rail 105, and converting the number of forward and reverse rotations in a single cycle into the length (the total circumference after converting the number of rotations of the drive wheel) and the length of the drive rail 105.

[0033] The reciprocating mechanism 902 and the lifting device 801 are connected by a controller (control module). Each time the lifting device 801 retracts, the reciprocating mechanism 902 completes one single-stroke movement. Figure 7 and Figure 9 As shown, when the reciprocating mechanism 902 drives the cleaning rod 901 to one side of the inner wall of the cleaning tank 1, the protruding end 9032 contacts the trigger end 103, forcing the rotating shaft 903 to rotate within the cleaning rod 901. Due to the rotational displacement of the rotating shaft 903, the opening slots 9031 on both sides of the rotating shaft 903 are misaligned with the through slots 9011 on both sides of the cleaning rod 901, causing the side closest to the inner wall of the cleaning tank 1 to be blocked due to the misalignment, while the other side remains open. Subsequently, when the reciprocating mechanism 902 drives the cleaning rod 901 to the other side of the inner wall of the cleaning tank 1, during the movement of the cleaning rod 901, dirt on the liquid surface will enter the hollow bottom of the rotating shaft 903 through the interconnected through slots 9011 and opening slots 9031 and be temporarily stored. When the wax model enters the cleaning tank 1, the liquid level in the cleaning tank 1 will rise, submerging the entire cleaning rod 901 in the water. The cleaning fluid will then enter the shaft 903 through the through groove 9011 and the opening groove 9031. At this time, due to the water pressure, the cleaning fluid inside the shaft 903 will be discharged through the hose 904 as the outlet channel, and will carry away the dirt that has been cleaned out of the shaft 903.

[0034] Considering that the presence of the horizontal rail 102 will cause dirt to flow into the hose groove 104, and that dirt will accumulate over time, the reciprocating mechanism 902 is designed with a second embodiment, and the second embodiment is the optimal solution embodiment. For example... Figures 6 to 11 As shown, the reciprocating mechanism 902 includes a drive gear 9021, a driven wheel 9022, a toothed belt 9023, a pulley 9024, and a belt 9025. The drive gear 9021 and two driven wheels 9022 are respectively arranged on the outer wall of the cleaning tank 1. The two driven wheels 9022 are located on opposite sides of the outer wall of the cleaning tank 1 and are driven and connected by the toothed belt 9023. The drive gear 9021 has a secondary wheel 90211 that meshes with the toothed belt 9023. An axle 90221 penetrating the cleaning tank 1 is arranged on the axis of each driven wheel 90222. A pulley 9024 is arranged on each axle 90221, located on opposite sides of the inner wall of the cleaning tank 1. The two pulleys 9024 on different axles 90221 are driven and connected by a belt 9025. The two ends of the cleaning rod 901 are fixed to the two belts 9025 by insertion. Figures 1 to 3As shown, the main frame 2 is provided with an upper guide rail 202 and a lower guide rail 203 that cooperate with the drive gear 9021. The upper guide rail 202 and the lower guide rail 203 are respectively provided with upper external teeth 2021 and lower external teeth 2031 that are staggered and cooperate with the drive gear 9021. The upper external teeth 2021 and lower external teeth 2031 are only provided at the first-stage cleaning position 21 and the second-stage cleaning position 22. As the annular flow line 3 rotates, the drive gear 9021 on the cleaning tank 1 will mesh with the upper external teeth 2021 or the lower external teeth 2031 and rotate under force. When meshing with the upper external teeth 2021, the drive gear 9021 rotates counterclockwise, and when meshing with the lower external teeth 2031, the drive gear 9021 rotates clockwise. Then, the toothed belt 9023 drives the driven wheel 9022 and the pulley 9024 to rotate, thereby realizing the reciprocating motion of the cleaning rod 901 in the cleaning tank 1.

[0035] Considering that during the cleaning process, some cleaning fluid is discharged through hose 904 after each wax model cleaning, causing the liquid level in cleaning tank 1 to decrease due to loss, ultimately affecting the cleaning ability of cleaning rod 901. Therefore, as Figures 6 to 11 As shown, the cleaning device 9 also includes a cleaning base 905. Each belt 9025 is provided with a cleaning base 905. A drain pipe 9051, passing through the belt 9025 and connected to a hose 904, is provided on the outer side of the cleaning base 905, allowing the cleaning base 905 to be fixed to the belt 9025 via the drain pipe 9051. Both ends of the cleaning rod 901 are respectively provided with drain ports 9012 that mate with the drain pipe 9051. Both ends of the cleaning rod 901 are respectively provided with upward-facing limiting rods 9013. Each cleaning base 905 is provided with a limiting step 9052, and the limiting step 9052 has a through hole that mates with the limiting rod 9013. The two ends of the cleaning rod 901 slide up and down between the two cleaning bases 905 through the cooperation of the limiting rod 9013 and the limiting step 9052. Figure 11As shown, the limiting rod 9013 has a top limit when sliding on the limiting step 9052. A larger water-retaining strip 90251 is provided on the side of the belt 9025 near the inner wall of the cleaning tank 1. The water-retaining strip 90251 is made of soft leather, and a water-retaining groove 106 is provided on the inner wall of the cleaning tank 1 to cooperate with the water-retaining strip 90251. When the wax model enters the cleaning tank 1, as the liquid level rises and submerges the belt 9025, the water-retaining strip 90251 on the belt 9025 will adhere to the water-retaining groove 106 under the influence of water pressure, preventing dirt and cleaning fluid from entering the hose groove 104 from the horizontal rail 102. A sealed cavity 9053 is provided in the cleaning rod 901 so that the cleaning rod 901 always floats at the liquid surface and is slightly higher than the liquid surface through the groove 9011. Even if the liquid level changes, the cleaning rod 901 can make adaptive adjustments according to the liquid level. When the wax model enters the cleaning tank 1, the cleaning rod 901 reaches its maximum limit on the cleaning base 905 due to the rise in liquid level. At this time, the drain ports 9012 at both ends of the cleaning rod 901 are aligned with the drain pipes 9051 of the cleaning base 905, and the water pressure causes the dirt in the rotating shaft 903 to be discharged along with some of the cleaning liquid. Considering that the decrease in height of the cleaning rod 901 due to the change in liquid level will affect the fit between the extended end 9032 and the trigger end 103, and thus affect the opening angle of the opening slot 9031 of the rotating shaft 903, such as... Figure 11 As shown, the protruding end 9032 is wider at the top and narrower at the bottom.

[0036] Considering that some dirt may remain on the inner wall of cleaning tank 1 after drainage, affecting the quality of newly injected clean water, therefore... Figure 1 and Figure 4 As shown, the environmentally friendly wax model cleaning line also includes a rinsing device 10 for rinsing the cleaning tank 1. A crossbeam 402 is installed on the hanging rail 4 above the end of the drain position 24, and the rinsing device 10 is installed on the crossbeam 402. A second lifting device 1001 (electric telescopic rod) is installed between the rinsing device 10 and the hanging rail 4. The main body of the rinsing device 10 is a flat plate 1002 that can extend into the cleaning tank 1. Several nozzles 1003 are installed on the other surfaces of the flat plate 1002 except for the top surface, and a rinsing water pipe 1004 is installed to connect the nozzles 1003 and the water source. The cleaning tank 1, which has successively cleaned the wax model with cleaning liquid and clean water, will flow into the drain position 24. When the cleaning tank 1 reaches the drain position 24, the quick drain valve 101 opens to drain the cleaning liquid inside into the wastewater tank. During drainage, the flushing device 10 extends into the cleaning tank 1 via the extension of the second lifting device 1001 and uses its own nozzles 1003 to quickly flush the inside of the cleaning tank 1, preventing residual dirt from remaining on the inner wall as the liquid level drops. After flushing, the cleaning tank 1 returns to the water injection level 23 and is refilled with clean water by the water injection device 5, ready for a new round of circulation.

[0037] To prevent clean but not yet dry wax models from re-accumulating dust during their journey on the second production line, such as... Figure 1 , Figure 2 and Figure 3 As shown, the environmentally friendly wax model cleaning line also includes a drying system 11, which includes an air outlet device 1101 and a drying cover 1102. The drying cover 1102 is fixedly installed at the bottom of the hanging rail 4 and located above the water injection level 23; air outlet devices 1101 are installed on both sides of the inner wall of the drying cover 1102, and the air outlet devices 1101 are connected to compressed air to dry the surface of the wax model. Figure 4 As shown, the water injection device 5 can be installed directly at the bottom of the air-drying cover 1102, taking advantage of the existing environment.

[0038] Considering that the wax model will drip water after flowing into the drying system 11, therefore... Figure 4 As shown, a water collection tank 11021 is provided at the bottom of the inner wall of the air-drying cover 1102. The water collection tank 11021 is connected to the wastewater recycling system 7 through a recycling pipe 11022, and the dripping water is sent into the wastewater recycling system 7 through the recycling pipe 11022.

[0039] The operating steps and principle of this invention are as follows: Initially, all cleaning tanks 1 are empty. At this time, the main frame 2 continuously circulates and repositions the cleaning tanks 1 via a clockwise rotating annular water line 3. When the cleaning tank 1 passes the water inlet 23, it is injected with clean water by the water inlet device 5, filling the cleaning tank 1 at the second-stage cleaning position 22 with clean water. Before the cleaning tank 1 enters the first-stage cleaning position 21 from the first section of the second-stage cleaning position 22, it is added with cleaning agent by the cleaning agent adding device 6, changing the clean water in the cleaning tank 1 at the first-stage cleaning position 21 into cleaning liquid. All cleaning tanks 1 that pass through the drain 24 from the first-stage cleaning position 21 are drained through the quick drain valve 101, and the inner wall of the cleaning tank 1 is rinsed by the rinsing device 10. After rinsing, the cleaning tank 1 will flow back to the water inlet 23 via the annular water line 3 and be filled with water, starting a new cycle.

[0040] During the operation of the circular production line 3, the second production line 401 built into the overhead rail 4 rotates in the opposite direction at the same frequency, continuously conveying the wax molds to be cleaned from the wax mold loading and unloading station to the top of the circular production line 3, and sequentially passing through the first-stage cleaning station 21, the second-stage cleaning station 22, and the water injection station 23. When the wax mold to be cleaned passes through the cleaning tank 1 of the first-stage cleaning station 21, after the wax mold is aligned vertically with the cleaning tank 1, the circular production line 3 and the second production line 401 simultaneously pause for about 5 seconds (the cleaning time can be adjusted according to the wax mold structure) to allow time for cleaning. At the same time as the pause, the lifting device 801 on the boom 8 extends, inserting the wax mold into the cleaning liquid in the cleaning tank 1, and then the lifting device 801 retracts to pull the wax mold out of the cleaning liquid, completing one cleaning cycle. As the annular production line 3 and the second production line 401 rotate in opposite directions at the same frequency, each wax model requiring cleaning sequentially enters a different cleaning tank 1 for cleaning with cleaning solution. With each change in the position of the cleaning tank 1, the cleaning solution in the next cleaning tank 1 will have a higher cleanliness level to ensure effective cleaning. After the wax model has passed through the different cleaning tanks 1 in the first-stage cleaning station 21, it enters the cleaning tank 1 of the second-stage cleaning station 22 with the rotation of the annular production line 3. At this point, the wax model is in contact with clean water that has not yet been mixed with cleaning agent. During this process, the wax model also moves in and out of the cleaning tank 1 filled with clean water as the lifting device 801 extends and retracts, using the clean water to remove surface dirt. With each change in the position of the cleaning tank 1, the cleanliness of the water in the next cleaning tank 1 will also be higher. As the wax model continues to flow into the water injection station 23, the wax model, after being cleaned with cleaning fluid and water, will enter the drying system 10 to be dried. Finally, the wax model will move away from the top of the circular production line 3 and continue to flow to the wax model loading and unloading station to be removed.

[0041] Each time the cleaning tank 1 completes a cleaning operation of the wax model and continues to flow with the circular production line 3, the reciprocating mechanism 902 in the cleaning tank 1 is triggered, causing the cleaning rod 901 to complete a one-way movement in the cleaning tank 1, scraping off the dirt that has just been cleaned from the liquid surface and discharging it through the hose 904, thereby improving the cleanliness of the cleaning liquid or water surface.

[0042] It should be noted that, in order to achieve a clear view, [the following is unclear and likely refers to a specific aspect:] Figures 1 to 2 The length and width of the main frame 2 have been shortened. In actual application, the first-stage cleaning position 21, the second-stage cleaning position 22, the water injection position 23, and the drainage position 24 should be set wider and longer. Taking the first-stage cleaning position 21 as an example, Figure 2 The length of the first-stage cleaning station 21 can only accommodate 5 cleaning tanks 1, but the actual length can be increased to four times to accommodate 20 cleaning tanks 1. The same applies to other stations.

[0043] In the description of this invention, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," 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 invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two elements; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0044] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An environmentally friendly wax mold cleaning line, comprising a cleaning tank (1), characterized in that: The environmentally friendly wax model cleaning line also includes a main frame (2), a circular conveyor line (3), a hanging rail (4), a water injection device (5), a cleaning agent addition device (6), a wastewater recycling system (7), and a hanging rod (8) for fixing the wax model; the main frame (2) is horizontally provided with a clockwise rotating circular conveyor line (3), and a number of cleaning tanks (1) are provided at equal intervals on the circular conveyor line (3); the main frame (2) is provided with a hanging rail (4) located above the circular conveyor line (3), and the hanging rail (4) is built into a counterclockwise rotating second conveyor line (401), and the second conveyor line (401) is provided with a number of intervals that are the same as the intervals between the cleaning tanks (1). Equal lifting rods (8), the lifting rods (8) are equipped with lifting devices (801); the main frame (2) is divided into four sections by workstations, and the four sections are divided into first-stage cleaning position (21), second-stage cleaning position (22), water injection position (23) and drainage position (24) in a counterclockwise direction; a cleaning agent adding device (6) is set at the first section of the second-stage cleaning position (22) above the cleaning tank (1), and a water injection device (5) is set at the water injection position (23) above the cleaning tank (1); a quick drain valve (101) is set at the bottom of the cleaning tank (1), and a wastewater recycling system (7) is set on the main frame (2) below the cleaning tank (1); Each of the cleaning tanks (1) is equipped with a cleaning device (9), which includes a cleaning rod (901) and a reciprocating mechanism (902). Horizontal rails (102) are provided on both sides of the inner wall of the cleaning tank (1). The cleaning rod (901) is inserted into the rails (102) and slidably positioned within the cleaning tank (1). A hollow rotating shaft (903) is provided inside the cleaning rod (901). Opening slots (9031) are provided on both sides of the rotating shaft (903). Passing grooves (9011) that mate with the opening slots (9031) are provided on both sides of the cleaning rod (901). An extension end (9032) extending from the top of the rotating shaft (903) is provided. The cleaning tank (1) The inner wall of the cleaning tank (1) is provided with trigger ends (103) that cooperate with the protruding end (9032) on both sides; the cleaning tank (1) is provided with a hose groove (104) connecting the bottom and the horizontal rail (102), the upper part of the hose groove (104) is set as an inverted triangle, the cleaning rod (901) is provided with hoses (904) at both ends, and the bottom of the hoses (904) is retractably set at the bottom of the hose groove (104); the cleaning tank (1) is provided with a reciprocating mechanism (902) that drives the cleaning rod (901) to move horizontally, and the reciprocating mechanism (902) is connected to the lifting device (801) by a controller. When the lifting device (801) retracts each time, the reciprocating mechanism (902) completes one single-pass movement. The reciprocating mechanism (902) includes a drive gear (9021), a driven wheel (9022), a toothed belt (9023), a pulley (9024), and a belt (9025). The drive gear (9021) and two driven wheels (9022) are respectively installed on the outer wall of the cleaning tank (1). The two driven wheels (9022) are located on opposite sides of the outer wall of the cleaning tank (1) and are connected by the toothed belt (9023). The drive gear (9021) meshes with the toothed belt (9023). The driven wheel (9022) has an axle (90221) that passes through the cleaning tank (1) along its axis. The axle (90221) is provided with pulleys (9024) located on both sides of the inner wall of the cleaning tank (1). The two pulleys (9024) with different shafts are connected by a belt (9025). The two ends of the cleaning rod (901) are fixed on the two belts (9025). The main frame (2) is provided with an upper guide rail (202) and a lower guide rail (203) that cooperate with the drive gear (9021). The upper guide rail (202) and the lower guide rail (203) are respectively provided with upper external teeth (2021) and lower external teeth (2031) that are staggered and cooperate with the drive gear (9021).

2. The environmentally friendly wax mold cleaning line as described in claim 1, characterized in that: The cleaning device (9) also includes a cleaning base (905). Each belt (9025) is provided with a cleaning base (905). The two ends of the cleaning rod (901) are respectively slidably disposed between the two cleaning bases (905). A drain pipe (9051) is provided on the outside of the cleaning base (905) through the belt (9025) and connected to the hose (904).

3. The environmentally friendly wax mold cleaning line as described in claim 2, characterized in that: The bottom end of the hose (904) is connected to a weight-adding metal tube (9041).

4. The environmentally friendly wax mold cleaning line as described in claim 1, characterized in that: The environmentally friendly wax model cleaning line also includes a rinsing device (10) for rinsing the cleaning tank (1). The rinsing device (10) is located above the tail section of the drain position (24) at the bottom of the hanging rail (4). A second lifting device (1001) is provided between the rinsing device (10) and the hanging rail (4).

5. The environmentally friendly wax mold cleaning line as described in claim 1, characterized in that: The environmentally friendly wax model cleaning line also includes a drying system (11), which includes an air outlet device (1101) and a drying cover (1102). The drying cover (1102) is fixedly installed at the bottom of the hanging rail (4) and located above the water injection level (23). The air outlet device (1101) is provided on both sides of the inner wall of the drying cover (1102), and the water injection device (5) is installed at the bottom of the drying cover (1102).

6. The environmentally friendly wax mold cleaning line as described in claim 5, characterized in that: The bottom of the inner wall of the air-drying cover (1102) is provided with a water collection tank (11021), and the water collection tank (11021) is connected to the wastewater recycling system (7) through a recycling pipe (11022).

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