A wax mold casting device and a casting method for producing a stainless steel water meter shell

Abstract

The present invention relates to the field of wax casting technology, and specifically to a wax casting device and a casting method for producing a stainless steel water meter shell, wherein the device comprises a wax liquid tank, a mesh plate, a first conveyor belt, a second conveyor belt and a material shifting mechanism. The material shifting mechanism drives the first wax mold to apply pressure to the mesh plate, so that the mesh plate moves toward the liquid surface of the adhesive liquid. After the bottom of the mesh plate is immersed in the adhesive liquid, the adhesive liquid flows to the top surface of the mesh plate through the mesh, so that the first wax mold can be fully in contact with the adhesive liquid, and the adhesive liquid on the contact surface is limited by the mesh and arranged in a dotted manner, which can effectively avoid excessive accumulation of the adhesive liquid on the contact surface when the first wax mold is brought into contact with the adhesive liquid by manual or mechanical equipment, thereby reducing surface flow marks, dripping and other defects after the first wax mold and the second wax mold are molded together, and there is no need to manually repair the dripping marks, thereby reducing the burden on the staff. This method makes the experience requirements for manual operation on the wax mold lower.

Description

Technical Field

[0001] The invention relates to the technical field of wax pattern casting, and in particular to wax pattern casting equipment and a casting method for producing a stainless steel water meter shell. Background Art

[0002] When producing the shell of a stainless steel water meter, in order to form a predetermined metal casting, a plurality of wax molds matching the shape of the corresponding metal casting are usually made, arranged and combined on a base to form a wax mold tree, and then the wax mold tree is repeatedly dipped in slurry and sanded to form a coating layer on the wax mold. After the coating layer is solidified, the internal wax mold is melted to obtain a shell, and a metal solution is injected into the shell to obtain the predetermined metal casting. When casting a complex wax mold casting such as a stainless steel water meter, in order to facilitate the removal of the inner tank, the wax mold is set into two parts such as Figure 1 and Figure 2 In the middle modeling, the first wax mold and the second wax mold need to be combined to obtain the final mold during the subsequent bonding. In the prior art, the two wax molds are generally spliced ​​manually, and the contact surface between the first wax mold and the second wax mold needs to be immersed in the bonding liquid first, and then the first wax mold is taken out and bonded with the second wax mold. However, due to the different immersion time and pressure in the bonding liquid, the bonding liquid will be too much. During the subsequent bonding, surface defects such as dripping marks will appear between the wax molds, thereby affecting the accuracy of the subsequent metal castings. At the same time, the surface defects need to be repaired later, resulting in low efficiency. Summary of the invention

[0003] In view of the above problems, a wax mold casting device and a casting method for the production of stainless steel water meter shells are provided. The present invention drives the first wax mold to apply pressure to the mesh plate through a material shifting mechanism, so that the first wax mold can drive the mesh plate to move toward the liquid surface of the adhesive liquid. After the bottom of the mesh plate is immersed in the adhesive liquid, the adhesive liquid flows to the top surface of the mesh plate through the mesh holes, so that the contact surface of the first wax mold that needs to be coated with the adhesive liquid can fully contact with the flowing adhesive liquid, so that the adhesive liquid on the contact surface of the first wax mold is restricted by the mesh holes and is arranged in a point shape, which can effectively prevent the adhesive liquid from excessively accumulating on the contact surface when the first wax mold is driven by manual or mechanical equipment to contact the adhesive liquid, thereby reducing surface flow marks, dripping and other defects after the first wax mold and the second wax mold are combined, and there is no need to manually repair the dripping marks, thereby reducing the burden on the staff. This method reduces the experience requirements for manual operation on the wax mold.

[0004] In order to solve the problems of the prior art, the present invention provides a wax mold casting equipment, including a wax liquid tank and a bonding liquid arranged in the wax liquid tank, a mesh plate that can slide along the height direction of the wax liquid tank is arranged above the liquid surface of the bonding liquid, and the mesh plate is elastically connected to the wax liquid tank, and the mesh plate is provided with mesh holes arranged in a rectangular row; a first conveyor belt for driving the first wax mold for transportation and a second conveyor belt for driving the second wax mold for transportation are respectively arranged on both sides of the wax liquid tank; a material moving mechanism is arranged between the first conveyor belt and the second conveyor belt.

[0005] Preferably, a baffle extending along the periphery of the mesh plate is provided on the wax liquid tank to form a closed mounting frame located at the edge of the mesh plate, a slide groove is provided at the bottom of the mounting frame, and the mesh plate is arranged in the slide groove.

[0006] Preferably, wing plates are provided on both sides of the top of the mounting frame, mounting plates are provided on both sides of the wax tank, and vertical guide columns are provided on the two mounting plates. The wing plates are sleeved on the guide columns and slidably cooperate with them. A first elastic member is provided on the guide column, and both ends of the first elastic member are fixedly connected to the bottom of the wing plate and the mounting plate respectively.

[0007] Preferably, a first sensor for detecting the pressure exerted by the material moving mechanism on the screen is provided on the mounting plate.

[0008] Preferably, a fixing plate is provided at the bottom of both sides of the wax liquid tank, a screw rod and a plurality of guide rods are provided on the fixing plate, a displacement frame is sleeved on the screw rod and the plurality of guide rods, the mounting plate is installed on the displacement frame, the displacement frame is sleeved on the guide rod and slidably cooperates with the guide rod, the displacement frame is sleeved on the screw rod and threadably cooperates with the guide rod, a first rotary drive motor for driving the screw rod to rotate is provided at the bottom of the fixing plate, and a liquid level sensor for detecting the liquid level of the adhesive liquid is provided on the wax liquid tank.

[0009] Preferably, a horizontal mounting shaft is provided on the displacement frame, one end of the mounting plate is sleeved on the mounting shaft, a support block is provided at the other end of the mounting plate, a driving shaft is provided at the top of the wax tank near one end of the mounting shaft on the mounting plate, and a baffle plate near one side of the mounting shaft is provided with multiple leakage holes arranged along its length direction.

[0010] Preferably, a connecting shaft in a horizontal state is provided on the support block, a fixed shaft parallel to the connecting shaft is provided on the displacement frame, and a tension spring is provided between the fixed shaft and the connecting shaft.

[0011] Preferably, the mesh has a conical structure, and the diameter of the top of the mesh is larger than the diameter of the bottom.

[0012] Preferably, the material transfer mechanism is a robot arm, and the robot arm is provided with a plurality of flexible clamping mechanisms arranged in a rectangular array.

[0013] A casting method for producing a stainless steel water meter housing, applied to the above-mentioned wax mold casting equipment, comprises the following steps:

[0014] S1. The first wax mold and the second wax mold are driven by the first conveyor belt and the second conveyor belt to move toward the wax liquid tank respectively, and the first wax mold and the second wax mold stop moving when they move to the side of the wax liquid tank.

[0015] S2. The first wax mold on the first conveyor belt is driven to move toward the wax liquid tank by the material moving mechanism until it is moved above the mesh plate. At this time, the material moving mechanism drives the first wax mold to apply pressure to the mesh plate, so that the mesh plate moves toward the liquid surface of the adhesive liquid. The bottom of the mesh plate is immersed in the adhesive liquid, and the adhesive liquid flows through the mesh holes to the top surface of the mesh plate, thereby completing the coating of the first wax mold with the adhesive liquid.

[0016] S3, the material moving mechanism drives the first wax mold away from the screen, and the screen is reset under the action of elasticity, so that the screen is located above the adhesive liquid again.

[0017] S4, the first wax mold is driven onto the second wax mold by the material transfer mechanism, the first wax mold and the second wax mold are combined by the material transfer mechanism, and the combined first wax mold and the second wax mold are transported by the second conveyor belt to continue moving.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention drives the first wax mold to apply pressure to the mesh plate through the material moving mechanism, so that the first wax mold can drive the mesh plate to move toward the liquid surface of the adhesive liquid. After the bottom of the mesh plate is immersed in the adhesive liquid, the adhesive liquid flows to the top surface of the mesh plate through the mesh holes, so that the contact surface of the first wax mold that needs to be coated with the adhesive liquid can fully contact with the flowing adhesive liquid, so that the adhesive liquid on the contact surface of the first wax mold is restricted by the mesh holes and is arranged in a dotted manner. The adhesive liquid arranged in a dotted manner on the contact surface of the first wax mold can effectively avoid excessive accumulation of adhesive liquid on the contact surface when the first wax mold is brought into contact with the adhesive liquid by manual or mechanical equipment, thereby reducing surface flow marks, dripping and other defects after the first wax mold and the second wax mold are molded together, and there is no need to manually remove the dripping liquid. Repair the marks to reduce the burden on the staff. This method makes the experience requirements for manual operation on the wax model lower, which can reduce the learning cost of the staff. When the mechanical equipment drives the wax model to operate, the accuracy requirements for the pressure of the equipment are reduced, which can reduce the cost of the equipment. At the same time, due to the dot-shaped application method, the amount of adhesive used is reduced, further reducing the production cost. The mesh holes arranged in a rectangular row on the stencil can match the complex contact surface, and there is no need to specially manufacture the complex contact surface of the wax model, which is low-cost. The density of the mesh holes on the stencil can be adjusted according to different process requirements, so that the stencil can meet the needs of various processes and improve the adaptability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the first wax model.

[0021] Figure 2 It is a schematic diagram of the partial three-dimensional structure after the first wax mold and the second wax mold are combined.

[0022] Figure 3 It is a three-dimensional structural schematic diagram of a wax casting device.

[0023] Figure 4 The invention is a three-dimensional structural diagram of a material transfer mechanism and a wax liquid tank in a wax casting device.

[0024] Figure 5 The invention is a three-dimensional structural diagram of a wax liquid tank and a mesh plate in a wax casting device.

[0025] Figure 6 It is a three-dimensional structural schematic diagram of a wax liquid tank in a wax mold casting device.

[0026] Figure 7 The invention is a three-dimensional structural diagram of a mounting frame and a displacement frame in a wax casting device.

[0027] Figure 8 A side view of a wax casting apparatus.

[0028] Fig. 9 It is a working status diagram of cleaning the screen in wax casting equipment.

[0029] Fig.10 The invention is a schematic diagram of the cross-sectional structure of a wax casting device.

[0030] Fig.11 yes Fig.10 Enlarged view of point A in the middle.

[0031] The numbers in the figure are:

[0032] 1. wax liquid tank; 11. adhesive liquid; 12. mesh plate; 121. mesh; 13. mounting frame; 131. baffle; 132. slide groove; 133. wing plate; 14. mounting plate; 141. guide column; 142. first elastic member; 143. first sensor; 144. support block; 1441. connecting shaft; 145. tension spring; 15. fixing plate; 151. guide rod; 152. screw rod; 153. displacement frame; 1531. mounting shaft; 1532. fixing shaft; 154. first rotary drive motor; 16. liquid level sensor; 17. drive shaft; 18. leakage hole; 2. material transfer mechanism; 21. first conveyor belt; 211. first wax mold; 22. second conveyor belt; 221. second wax mold; 23. manipulator; 231. flexible clamping mechanism. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] like Figures 1 to 5 , Fig.10 and Fig.11 As shown: a wax model casting equipment, including a wax liquid tank 1 and a bonding liquid 11 arranged in the wax liquid tank 1, a mesh plate 12 that can slide along the height direction of the wax liquid tank 1 is arranged above the liquid surface of the bonding liquid 11, and the mesh plate 12 is elastically connected to the wax liquid tank 1, and the mesh plate 12 is provided with mesh holes 121 arranged in a rectangular row; a first conveyor belt 21 for driving the first wax model 211 for transportation and a second conveyor belt 22 for driving the second wax model 221 for transportation are respectively arranged on both sides of the wax liquid tank 1; a material moving mechanism 2 is arranged between the first conveyor belt 21 and the second conveyor belt 22.

[0035] First, the first wax mold 211 and the second wax mold 221 are driven to move toward the wax liquid tank 1 by the first conveyor belt 21 and the second conveyor belt 22 respectively. When the first wax mold 211 and the second wax mold 221 move to the side of the wax liquid tank 1, they stop moving. At this time, the first wax mold 211 on the first conveyor belt 21 is driven to move toward the wax liquid tank 1 by the material shifting mechanism 2, so that the first wax mold 211 is located above the mesh plate 12. The first wax mold 211 is driven by the material shifting mechanism 2 to apply pressure to the mesh plate 12. Since the mesh plate 12 can be slidably arranged on the wax liquid tank 1, and the mesh plate 12 is elastically connected to the wax liquid tank 1, the pressure applied by the material shifting mechanism 2 enables the first wax mold 211 to drive the mesh plate 12 to move toward the liquid surface of the adhesive liquid 11, so that the bottom of the mesh plate 12 is immersed in the adhesive liquid 11. Since the mesh plate 12 is provided with meshes arranged in a rectangular shape, Hole 121. During the immersion process, the adhesive liquid 11 flows through the mesh 121 to the top surface of the mesh plate 12, so that the contact surface of the first wax mold 211 that needs to be coated with the adhesive liquid 11 can fully contact with the outflowing adhesive liquid 11, so that the adhesive liquid 11 on the contact surface of the first wax mold 211 is restricted by the mesh 121 and is arranged in a dotted shape. At this time, the material moving mechanism 2 drives the first wax mold 211 away from the mesh plate 12, and the mesh plate 12 will be reset under the action of elasticity, so that the mesh plate 12 is located above the adhesive liquid 11 again, and the first wax mold 211 is driven by the material moving mechanism 2 to the second wax mold 221. The first wax mold 211 and the second wax mold 221 are combined by the material moving mechanism 2 to obtain the final wax mold of the water meter, and the wax mold after the combination is driven to continue to move by the second conveyor belt 22, thereby completing the splicing of the wax molds.

[0036] By arranging the adhesive 11 in a dotted pattern on the contact surface of the first wax mold 211, it is possible to effectively prevent the adhesive 11 from accumulating excessively on the contact surface when the first wax mold 211 is brought into contact with the adhesive 11 by manual or mechanical equipment. This can reduce surface flow marks, dripping and other defects after the first wax mold 211 and the second wax mold 221 are molded together. There is no need to manually repair the dripping marks, thereby reducing the burden on the staff. This method reduces the experience requirements for manual operation of the wax mold, which can reduce the learning cost of the staff. When mechanical equipment drives the wax mold to operate, the accuracy requirements for the pressure applied by the equipment are reduced, which can reduce the cost of the equipment. At the same time, due to the dotted arrangement of the coating method, the amount of adhesive 11 used is reduced, further reducing the production cost.

[0037] The mesh holes 121 arranged in rectangular rows on the stencil 12 can match complex contact surfaces. There is no need to specially manufacture the complex contact surfaces of the wax mold, which is low-cost. The density of the mesh holes 121 on the stencil 12 can be adjusted according to different process requirements, so that the stencil 12 can meet the needs of various processes and improve the adaptability of the equipment.

[0038] like Figure 1 , Figure 2 , Figures 5 to 7 , Fig.10 and Fig.11 As shown: a baffle 131 extending along the periphery of the mesh plate 12 is provided on the wax tank 1 to form a closed mounting frame 13 located at the edge of the mesh plate 12, a slide groove 132 is provided at the bottom of the mounting frame 13, and the mesh plate 12 is arranged in the slide groove 132.

[0039] By setting the mounting frame 13 and the slide groove 132, the mesh plate 12 can be installed on the bottom of the mounting frame 13, which is convenient for replacing the mesh plate 12 when using different mesh plates 12 for different processes. At the same time, this method is convenient for disassembly of the mesh plate 12 and convenient for later maintenance of the mesh plate 12; because the bottom of the mesh plate 12 needs to be immersed in the adhesive liquid 11, the adhesive liquid 11 flows out from the mesh holes 121 of the mesh plate 12 to achieve contact between the first wax mold 211 and the adhesive liquid 11. In this process, if the pressure exerted by the material moving mechanism 2 on the first wax mold 211 is too large, it may cause the mesh plate 12 to be immersed too deeply in the adhesive liquid 11. If the baffle 131 is not set, the adhesive liquid 11 may flow from the periphery of the mesh plate 12 to the surface of the mesh plate 12, thereby causing the first wax mold 2 11 is in excessive contact with the adhesive liquid 11, which causes defects such as dripping and leaving marks when the first wax mold 211 and the second wax mold 221 are molded together. It can also reduce the amount of adhesive liquid 11 remaining on the surface of the mesh plate 12, thereby affecting subsequent processing. By setting the baffle 131, the adhesive liquid 11 is blocked, thereby better pressurizing the first wax mold 211 and the mesh plate 12, so that the equipment's requirements for the accuracy of the material transfer mechanism 2 are reduced, so that the adhesive liquid 11 can be better coated on the contact surface of the first wax mold 211. At the same time, through the setting of the baffle 131, the pressure of the first wax mold 211 is accurately controlled by the material transfer mechanism 2, thereby accurately controlling the amount of adhesive liquid 11 overflowing from the mesh hole 121 on the mesh plate 12, thereby meeting different process requirements and improving the adaptability of the equipment.

[0040] like Figure 1 , Figure 2 , Figures 5 to 11 As shown: wing plates 133 are provided on both sides of the top of the mounting frame 13, mounting plates 14 are provided on both sides of the wax tank 1, and vertical guide columns 141 are provided on the two mounting plates 14. The wing plates 133 are sleeved on the guide columns 141 and slidably cooperate with them. A first elastic member 142 is provided on the guide column 141, and both ends of the first elastic member 142 are fixedly connected to the bottom of the wing plates 133 and the mounting plate 14 respectively.

[0041] By setting the mounting plate 14 and the guide column 141, the wing plate 133 can be sleeved on the guide column 141 and slidably cooperate with it. The sliding of the wing plate 133 can drive the movement of the mounting frame 13 connected thereto, and the movement of the mounting frame 13 can drive the movement of the mesh plate 12. By setting the first elastic member 142, the mesh plate 12 is elastically mounted on the wax liquid tank 1. When the first wax mold 211 is driven by the material shifting mechanism 2 to apply pressure to the mesh plate 12, the mesh plate 12 can drive the wing plate 133 on the mounting frame 13 to slide on the guide column 141, and the wing plate 133 applies pressure to the first elastic member 142, so that the adhesive liquid 11 can flow out of the mesh 121. By setting the first elastic member 142, the mesh plate 12 can restore its position after the first wax mold 211 leaves, which is convenient for the subsequent processing of the first wax mold 211.

[0042] like Figure 1 , Figure 2 , Figures 5 to 11 As shown, a first sensor 143 for detecting the pressure applied by the material moving mechanism 2 to the screen 12 is arranged on the mounting plate 14 .

[0043] The first sensor 143 can be a pressure sensor or a distance sensor. The first sensor 143 monitors the pressure or distance of the movement of the wing plate 133, and transmits the monitored data to the controller at the back end. The material moving mechanism 2 is controlled by the controller, so that the material moving mechanism 2 can apply pressure to the mesh plate 12 more accurately, thereby accurately controlling the amount of adhesive liquid 11 overflowing from the mesh holes 121 on the mesh plate 12, thereby meeting different process requirements and improving the adaptability of the equipment. At the same time, it can also give an early warning of the pressure applied by the material moving mechanism 2. When the pressure exceeds the threshold, the material moving mechanism 2 stops operating to avoid damage to the wax mold or the mesh plate 12. The above method improves the degree of automation of the equipment and the casting efficiency of the wax mold.

[0044] like Figure 1 , Figure 2 , Figures 5 to 11 As shown: a fixing plate 15 is provided at the bottom of both sides of the wax liquid tank 1, a screw rod 152 and a plurality of guide rods 151 are provided on the fixing plate 15, a displacement frame 153 is sleeved on the screw rod 152 and the plurality of guide rods 151, the mounting plate 14 is installed on the displacement frame 153, the displacement frame 153 is sleeved on the guide rod 151 and slidably cooperates with the guide rod 151, the displacement frame 153 is sleeved on the screw rod 152 and threadedly cooperates with the guide rod 151, a first rotary drive motor 154 for driving the screw rod 152 to rotate is provided at the bottom of the fixing plate 15, and a liquid level sensor 16 for detecting the liquid level of the adhesive liquid 11 is provided on the wax liquid tank 1.

[0045] During the use of the adhesive 11, the position of the liquid surface of the adhesive 11 will change due to continuous use. At the same time, it is impossible for the liquid surface of the adhesive 11 to remain consistent every time when the adhesive 11 is replenished. In order to better cope with the coating of the adhesive 11 on components with higher precision, it is necessary to control the distance between the screen 12 and the liquid surface of the adhesive 11 so that the material moving mechanism 2 can better apply pressure to the first wax mold 211 and the screen 12. The liquid surface of the adhesive 11 is first monitored by the liquid surface sensor 16, and the monitored data is sent to the controller at the back end. The first rotary drive motor 154 is started by the controller, and the output shaft of the first rotary drive motor 154 drives the rotation of the screw rod 152 fixedly connected thereto. The rotation of the screw rod 152 drives the displacement frame 153 that is threadedly matched with it to move, so that the displacement frame 153 can move along the axial direction of the guide rod 151, and the movement of the displacement frame 153 drives the movement of the mounting plate 14, and the movement of the mounting plate 14 brings about the movement of the wing plate 133 and the mesh plate 12, thereby making it possible to keep the distance between the mesh plate 12 and the liquid surface of the adhesive liquid 11 always consistent, so as to facilitate better pressure on the first wax mold 211 and the mesh plate 12 through the material shifting mechanism 2, thereby improving the contact effect between the adhesive liquid 11 and the first wax mold 211, reducing surface defects, and also helping to improve the bonding strength and effect of the first wax mold 211 and the second wax mold 221 after the mold is closed.

[0046] The displacement frame 153 is a U-shaped structure, and has a self-locking feature through the screw rod 152, so that the displacement frame 153 can ensure the fixed position after adjustment, which helps to support the mounting plate 14, so that the mounting frame 13 can be supported, thereby supporting the mesh plate 12.

[0047] like Figure 1 , Figure 2 , Figures 5 to 11 As shown: a horizontal mounting shaft 1531 is provided on the displacement frame 153, one end of the mounting plate 14 is sleeved on the mounting shaft 1531, and a support block 144 is provided on the other end of the mounting plate 14. A driving shaft 17 is provided at one end of the mounting shaft 1531 on the mounting plate 14 near the top of the wax tank 1, and a plurality of leakage holes 18 arranged along its length direction are provided on the baffle plate 131 near one side of the mounting shaft 1531.

[0048] By setting the support block 144, the mounting plate 14 can be horizontally mounted on the displacement frame 153. After the mesh plate 12 has been used for many times, the adhesive liquid 11 may remain on the surface of the mesh plate 12. The adhesive liquid 11 will condense after being cooled, thereby affecting the subsequent use of the mesh plate 12. In order to reduce this problem, after each use, the displacement frame 153 can be driven to move by rotating the screw rod 152, so that the mounting plate 14 is close to the drive shaft 17. Since the mounting plate 14 is connected to the displacement frame 153 through the mounting shaft 1531, when the mounting plate 14 moves to the top of the wax liquid tank 1, the mounting plate 14 is moved to the top of the wax liquid tank 1. It will abut against the driving shaft 17, so that the mounting plate 14 can rotate around the mounting shaft 1531. The rotating mounting plate 14 can drive the movement of the guide column 141, which in turn drives the movement of the wing plate 133, which in turn drives the movement of the mounting frame 13, and the movement of the mounting frame 13 drives the tilt of the mesh plate 12, so that the adhesive liquid 11 that has not yet solidified and remains on the surface of the mesh plate 12 can move toward the baffle 131 on the side close to the mounting shaft 1531, and return to the wax liquid tank 1 through the leakage hole 18, thereby reducing the problem of the adhesive liquid 11 remaining on the surface of the mesh plate 12.

[0049] It should be noted that the drive shaft 17 is preferably made of a material with elastic material, thereby avoiding the problem of damage to the mounting plate 14 when the drive shaft 17 abuts against the mounting plate 14; the height of the leakage hole 18 is higher than the surface of the mesh plate 12, thereby preventing the adhesive liquid 11 from flowing back to the mesh plate 12 from the leakage hole 18 when the mesh plate 12 is immersed in the adhesive liquid 11. There is a certain distance between the mounting frame 13 and the inner wall of the wax liquid tank 1, so that the mounting frame 13 and the mesh plate 12 have space for movement. The above method requires a drainage after each operation, which is more cumbersome. This method can also be set for a certain number of processing times, but the residual liquid on its surface may condense. For this reason, it is necessary to set a heating wire on the mounting frame 13 or lower the position of the mounting frame 13 first, so that the mounting frame 13 is immersed in the adhesive liquid 11 for a period of time, so that the mounting frame 13 has a higher temperature to melt the residual liquid on its surface, so that when the mesh plate 12 is tilted subsequently, the residual liquid can restore fluidity and return to the wax liquid tank 1.

[0050] like Figure 1 , Figure 2 , Figures 5 to 11 As shown, a connecting shaft 1441 in a horizontal state is arranged on the supporting block 144 , a fixing shaft 1532 parallel to the connecting shaft 1441 is arranged on the displacement frame 153 , and a tension spring 145 is arranged between the fixing shaft 1532 and the connecting shaft 1441 .

[0051] When the mounting plate 14 is driven by the driving shaft 17 to rotate around the mounting shaft 1531, when the driving shaft 17 is away from the mounting plate 14, the mounting plate 14 is reset by free fall. This reset method may cause the problem of being unable to reset due to insufficient gravity, thereby affecting the subsequent processing of the wax mold. Through the setting of the tension spring 145, after the mounting plate 14 is driven by the driving shaft 17, the support block 144 will move with the mounting plate 14, and the connecting shaft 1441 on the support block 144 will pull the tension spring 145 to stretch. When the driving shaft 17 is away from the mounting plate 14, the tension spring 145 can elastically drive the mounting plate 14 to reset, thereby allowing the mounting plate 14 to be accurately reset. At the same time, when pressure is applied to the mesh plate 12, the mounting plate 14 can remain stable to avoid the problem of being unable to reset.

[0052] like Figure 1 , Figure 2 , Figure 5 , Fig.10 and Fig.11 As shown: the mesh 121 is a conical structure, and the diameter of the top of the mesh 121 is greater than the diameter of the bottom.

[0053] The mesh 121 has a conical structure, and the diameter of the top of the mesh 121 is larger than the diameter of the bottom, which can reduce the generation of residual adhesive liquid 11 on the surface of the mesh plate 12 and prevent the adhesive liquid 11 from staying in the holes. Through this structure, the residual liquid can better flow back into the wax liquid tank 1 through the mesh 121. In order to improve this effect, a coating can also be applied on the surface of the mesh plate 12 to improve the fluidity of the residual liquid and reduce the adhesion of the residual liquid.

[0054] like Figure 3 and Figure 4 As shown, the material transfer mechanism 2 is a robot arm 23 , on which a plurality of flexible clamping mechanisms 231 arranged in a rectangular array are provided.

[0055] Through the setting of the manipulator 23, the first wax mold 211 can be efficiently moved toward the mesh plate 12, and the first wax mold 211 and the second wax mold 221 can be driven to close together, thereby improving the overall automation level of the equipment. Through the setting of the flexible clamping claws, the contact between the rigid clamping mechanism and the wax mold, which would cause damage to the wax mold, can be avoided.

[0056] like Figures 1 to 5 , Fig.10 and Fig.11 As shown: A casting method for producing a stainless steel water meter housing, using the above-mentioned wax mold casting equipment, includes the following steps:

[0057] S1. The first wax mold 211 and the second wax mold 221 are respectively driven by the first conveyor belt 21 and the second conveyor belt 22 to move toward the wax liquid tank 1. When the first wax mold 211 and the second wax mold 221 move to the side of the wax liquid tank 1, they stop moving.

[0058] S2. The first wax mold 211 on the first conveyor belt 21 is driven to move toward the wax liquid tank 1 through the material moving mechanism 2 until it is moved above the mesh plate 12. At this time, the material moving mechanism 2 drives the first wax mold 211 to apply pressure to the mesh plate 12, so that the mesh plate 12 moves toward the liquid surface of the adhesive liquid 11. The bottom of the mesh plate 12 is immersed in the adhesive liquid 11, and the adhesive liquid 11 flows through the mesh 121 to the top surface of the mesh plate 12, thereby completing the coating of the first wax mold 211 with the adhesive liquid 11.

[0059] S3 , the material moving mechanism 2 drives the first wax mold 211 away from the screen 12 , and the screen 12 is reset under the action of elasticity, so that the screen 12 is located above the adhesive liquid 11 again.

[0060] S4, the first wax mold 211 is driven onto the second wax mold 221 by the material transfer mechanism 2, the first wax mold 211 and the second wax mold 221 are closed by the material transfer mechanism 2, and the closed first wax mold 211 and the second wax mold 221 are transported by the second conveyor belt 22 to continue moving.

[0061] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A wax casting device, comprising a wax tank (1) and a bonding liquid (11) arranged in the wax tank (1), characterized in that: A mesh plate (12) is arranged above the liquid surface of the adhesive liquid (11) and is capable of sliding along the height direction of the wax liquid tank (1). The mesh plate (12) is elastically connected to the wax liquid tank (1). The mesh plate (12) is provided with mesh holes (121) arranged in a rectangular row. The mesh holes (121) are in a conical structure. The diameter of the top of the mesh hole (121) is greater than the diameter of the bottom thereof. A first conveyor belt (21) for driving the first wax model (211) for transportation and a second conveyor belt (22) for driving the second wax model (221) for transportation are respectively arranged on both sides of the wax liquid tank (1); A material transfer mechanism (2) is provided between the first conveyor belt (21) and the second conveyor belt (22); the material transfer mechanism (2) is a manipulator (23), and the manipulator (23) is provided with a plurality of flexible clamping mechanisms (231) arranged in a rectangular array; The wax liquid tank (1) is provided with a baffle (131) extending along the periphery of the mesh plate (12), forming a closed mounting frame (13) located at the edge of the mesh plate (12); a slide groove (132) is provided at the bottom of the mounting frame (13), and the mesh plate (12) is arranged in the slide groove (132); Wing plates (133) are provided on both sides of the top of the mounting frame (13), mounting plates (14) are provided on both sides of the wax tank (1), and vertical guide columns (141) are provided on the two mounting plates (14). The wing plates (133) are sleeved on the guide columns (141) and slidably cooperate with the guide columns (141), and a first elastic member (142) is provided on the guide columns (141), and the two ends of the first elastic member (142) are respectively fixedly connected to the bottom of the wing plates (133) and the mounting plates (14); A first sensor (143) for detecting the pressure applied by the material moving mechanism (2) to the mesh plate (12) is arranged on the mounting plate (14); A fixing plate (15) is provided at the bottom of both sides of the wax liquid tank (1), a screw rod (152) and a plurality of guide rods (151) are provided on the fixing plate (15), a displacement frame (153) is sleeved on the screw rod (152) and the plurality of guide rods (151), a mounting plate (14) is mounted on the displacement frame (153), the displacement frame (153) is sleeved on the guide rod (151) and slidably matched therewith, the displacement frame (153) is sleeved on the screw rod (152) and threadedly matched therewith, a first rotary drive motor (154) for driving the screw rod (152) to rotate is provided at the bottom of the fixing plate (15), and a liquid level sensor (16) for detecting the liquid level of the adhesive liquid (11) is provided on the wax liquid tank (1).

2. A wax casting device according to claim 1, characterized in that: A mounting shaft (1531) in a horizontal state is arranged on the displacement frame (153); one end of the mounting plate (14) is sleeved on the mounting shaft (1531); a support block (144) is arranged on the other end of the mounting plate (14); a driving shaft (17) is arranged at the top of the wax tank (1) near one end of the mounting shaft (1531) on the mounting plate (14); and a baffle plate (131) near one side of the mounting shaft (1531) is provided with a plurality of leakage holes (18) arranged along its length direction.

3. A wax casting device according to claim 2, characterized in that: A connecting shaft (1441) in a horizontal state is arranged on the support block (144), a fixing shaft (1532) parallel to the connecting shaft (1441) is arranged on the displacement frame (153), and a tension spring (145) is arranged between the fixing shaft (1532) and the connecting shaft (1441).

4. A casting method for producing a stainless steel water meter housing, applied to a wax casting device as claimed in any one of claims 1 to 3, characterized in that: The following steps are involved: S1, driving the first wax model (211) and the second wax model (221) to move toward the wax liquid tank (1) by means of the first conveyor belt (21) and the second conveyor belt (22), and stopping the movement when the first wax model (211) and the second wax model (221) move to the side of the wax liquid tank (1); S2, driving the first wax mold (211) on the first conveyor belt (21) to move toward the wax liquid tank (1) through the material moving mechanism (2) until it is moved above the mesh plate (12), at which time the material moving mechanism (2) drives the first wax mold (211) to apply pressure to the mesh plate (12), so that the mesh plate (12) moves toward the liquid surface of the adhesive liquid (11), the bottom of the mesh plate (12) is immersed in the adhesive liquid (11), and the adhesive liquid (11) flows through the mesh holes (121) to the top surface of the mesh plate (12), thereby completing the coating of the first wax mold (211) with the adhesive liquid (11); S3, the material moving mechanism (2) drives the first wax mold (211) away from the screen (12), and the screen (12) is reset under the action of elasticity, so that the screen (12) is located above the adhesive liquid (11) again; S4. The first wax mold (211) is driven by the material transfer mechanism (2) onto the second wax mold (221). The first wax mold (211) and the second wax mold (221) are closed together by the material transfer mechanism (2), and the closed first wax mold (211) and the second wax mold (221) are transported by the second conveyor belt (22) to continue moving.

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