Wax injection device for wax injection machine
By designing the moving mechanism and degassing mechanism in the wax injection machine, the problem of inappropriate flow path position in the wax injection machine is solved, the flexible movement of the wax injection machine and gas removal are achieved, and the molding quality of the wax mold is improved.
Patent Information
- Application Number
- CN202421047581.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-14
AI Technical Summary
In wax injection machine, the models are different and the runner positions are not the same, which may cause the runner to be too long when the side-injection setting of the wax injection machine, affecting the wax mold forming.
A wax injection device for wax injection machine is designed, using a moving mechanism and a degassing mechanism to drive the screw rod and sprocket through the first motor to realize the two-dimensional plane movement of the wax injection machine. Combining the telescopic rod and the cannula to ensure the flow channel. Flexible position adjustment and reduce gas spillage.
The flexible position adjustment of the wax injection device is achieved, which avoids the problem of excessive runners, and reduces bubbles during wax liquid casting through the air pump, thereby improving the quality of the wax mold surface.
Smart Images
Figure CN222268604U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wax injection machines, in particular to a wax injection device for wax injection machines. Background Art
[0002] Investment casting is also known as lost wax casting, which includes processes such as wax pressing, wax repairing, tree assembly, slurry dipping, wax melting, pouring molten metal and post-processing. Lost wax casting is to use wax to make a wax mold of the part to be cast, and then coat the wax mold with mud, which is a clay mold. After the clay mold is dried, it is fired into a ceramic mold. Once fired, the wax mold is completely melted and only the ceramic mold remains. Generally, a pouring port is left when making the clay mold, and then molten metal is poured into the pouring port. After cooling, the required parts are made. Therefore, the production of wax molds is an important process, which is completed using a wax injection machine. The molding of the wax mold is greatly affected by the wax injection machine.
[0003] For example, the Chinese patent publication number CN217452005U discloses a wax injection device for a wax injection machine, including: a machine body, a placement mechanism and a wax injection mechanism, the machine body is provided with a connecting frame, the placement mechanism is provided on the machine body, the connection frame is provided with an adjustment frame, the wax injection mechanism is provided on the adjustment frame, and the wax injection mechanism faces the placement mechanism. By using this wax injection device for a wax injection machine, the product can be continuously waxed through the cooperation of the placement mechanism and the wax injection mechanism, and by using the wax injection mechanism, the wax injection and wax replenishment are more stable, thereby ensuring that the wax supply is stable during the wax injection process, so that the overall wax output effect can be well avoided due to unstable wax supply, and the quality rate of the entire product production is improved.
[0004] The existing technology has the following problems:
[0005] Different models, when making wax molds, runners are set at different positions as needed. The positions of these runners are not the same. Since the wax injection machine adopts the side injection method, when setting the runner, the mold needs to set the runner at a specific position as much as possible. This position may not be particularly convenient for some models and may cause the runner to be too long. Utility Model Content
[0006] The utility model provides a wax injection device for a wax injection machine to solve the problems raised in the above background technology.
[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0008] A wax injection device for a wax injection machine comprises a cabinet, the upper surface of the cabinet is fixedly connected to a support frame, the upper side of the support frame is fixedly connected to a moving mechanism, the middle of the moving mechanism is fixedly connected to a telescopic rod, the lower side of the telescopic rod is fixedly connected to a wax injector, and the outer side of the wax injector is movably sleeved with a degassing mechanism.
[0009] Preferably, the moving mechanism includes a first motor, the lower surface of which is fixedly connected to the upper surface of the support frame near the left front side, the output end of the first motor is fixedly connected to a first screw rod, two of which are symmetrically distributed on the left and right sides, the outer wall of the first screw rod is rotatably connected to the upper surface of the support frame near the front and rear ends, and the outer walls of the two first screw rods are threadedly connected to the first moving seat.
[0010] Preferably, outer walls of the two first screw rods are fixedly connected to sprockets near the front ends, and the side surfaces of the sprockets are meshingly connected to chains.
[0011] Preferably, a second motor is fixedly connected to the right side of the first movable seat on the left side, a second screw rod is fixedly connected to the output end of the second motor, the right end of the second screw rod is rotatably connected to the left side of the first movable seat on the right side, the outer wall of the second screw rod is threadedly connected to the second movable seat, and the upper side of the telescopic rod is fixedly connected to the lower surface of the second movable seat.
[0012] Preferably, a first limiting rod is fixedly connected to an upper position of one side of the first movable seats that are close to each other, and an upper side of the second movable seat is movably sleeved on an outer wall of the first limiting rod.
[0013] Preferably, the degassing mechanism includes a cannula, and the outer wall of the wax ejector is movably sleeved on the inner side of the cannula near the lower side, and a plurality of second limiting rods distributed in an annular manner are fixedly connected to the upper surface of the cannula. The outer wall of the wax ejector is movably sleeved on the outer side of the second limiting rods near the lower side through a circular plate, and the outer walls of the plurality of second limiting rods are movably sleeved with springs, and the springs are located on the lower side of the circular plate.
[0014] Preferably, the side wall of the insert tube is provided with six annularly distributed mechanism grooves, the outer wall of the insert tube is provided with an annular groove, and the annular groove is located on the outside of the mechanism groove, and the lower surface of the annular groove is slidably connected with six annularly distributed push blocks, the push blocks are in the shape of an arc, and the inner sides of the six mechanism grooves are movably sleeved with balls, and the upper and lower sides of the inner side of the annular groove are fixedly connected with sealing films near the outer edge, the outer side of the push blocks fits the inner side of the sealing film, and the outer wall of the wax injector is fixedly connected with an adjusting block near the lower side, the adjusting block is in the shape of a cone, and the adjusting block is located on the inner side of the insert tube.
[0015] Preferably, a sealing cover is fixedly connected to the upper surface of the insert tube, the middle part of the upper wall of the sealing cover is movably sleeved on the outer wall of the wax injector near the lower side, an exhaust pipe is fixedly connected to the upper side of the sealing cover near the edge, and an exhaust pump is connected to the end of the exhaust pipe away from the sealing cover.
[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:
[0017] 1. The utility model provides a wax injection device for a wax injection machine, which adopts the cooperation of a moving mechanism, a first motor, a first screw rod, a first moving seat, a sprocket, a chain, a second motor, a second screw rod, a second moving seat, a first limiting rod, a telescopic rod and a wax injector. The first motor drives the first screw rod to rotate, so that the wax injector moves forward and backward, and the second motor drives the second screw rod to rotate, so that the wax injector moves left and right, so that the wax injector can be moved to various positions in a two-dimensional plane, so that different models can be set according to actual needs, avoiding the position where the flow channel is too long due to the need to match the position of the wax injector.
[0018] 2. The utility model provides a wax injection device for a wax injection machine, which adopts a telescopic rod, a wax injector, a degassing mechanism, a cannula, a second limit rod, a spring, a sealing cover, an exhaust pipe, a mechanism groove, a ball, a push block, a sealing film and an adjusting block. By placing the cannula into the flow channel, when the telescopic rod drives the wax injector to move downward, the sealing film is stretched open so that the cannula and the inner wall of the flow channel are sealed by a gap, and an air pump is used to evacuate the inside of the model to avoid the problem of bubbles on the surface of the wax model due to the inability of some gas to overflow when the wax liquid is cast. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0020] Figure 2 It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model;
[0021] Figure 3 It is a three-dimensional structural schematic diagram of the moving mechanism of the utility model;
[0022] Figure 4 It is a partial cross-sectional three-dimensional structural schematic diagram of the degassing mechanism of the utility model;
[0023] Figure 5 It is a schematic diagram of the enlarged structure of part A of the utility model.
[0024] In the figure: 1. cabinet; 2. support frame; 3. moving mechanism; 31. first motor; 32. first screw rod; 33. first moving seat; 34. sprocket; 35. chain; 36. second motor; 37. second screw rod; 38. second moving seat; 39. first limit rod; 4. telescopic rod; 5. wax injector; 6. degassing mechanism; 61. insert tube; 62. second limit rod; 63. spring; 64. sealing cover; 65. exhaust pipe; 66. mechanism groove; 67. ball; 68. push block; 69. sealing film; 610. adjusting block. DETAILED DESCRIPTION
[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0026] like Figure 1 , Figure 2 As shown, a wax injection device for a wax injection machine includes a cabinet 1, the upper surface of the cabinet 1 is fixedly connected to a support frame 2, the upper side of the support frame 2 is fixedly connected to a moving mechanism 3, the middle of the moving mechanism 3 is fixedly connected to a telescopic rod 4, the lower side of the telescopic rod 4 is fixedly connected to a wax injector 5, and the outer side of the wax injector 5 is movably sleeved with a degassing mechanism 6.
[0027] It should be noted that the telescopic rod 4 can drive the wax shooter 5 to move up and down. A thin tubular component is provided on the lower side of the wax shooter 5, and the wax shooter 5 takes in liquid wax into the mold through the thin tubular component.
[0028] like Figure 2 , Figure 3 As shown, the moving mechanism 3 includes a first motor 31, the lower surface of the first motor 31 is fixedly connected to the upper surface of the support frame 2 near the left front side, the output end of the first motor 31 is fixedly connected to the first screw rod 32, two first screw rods 32 are symmetrically distributed on the left and right, the outer walls of the first screw rods 32 are rotatably connected to the upper surface of the support frame 2 near the front and rear ends, and the outer walls of the two first screw rods 32 are threadedly connected to the first moving seat 33.
[0029] It should be noted that the first motor 31 drives the first screw rod 32 on the left side to rotate, and when the first screw rod 32 on the left side rotates, it drives the first moving seat 33 thereon to move forward and backward.
[0030] like Figure 3 As shown, the outer walls of the two first screw rods 32 are fixedly connected to positions near the front ends thereof, and the side surfaces of the sprocket wheels 34 are meshingly connected to the chains 35 .
[0031] It should be noted that when the first screw rod 32 on the left side rotates, it drives the sprocket 34 on the left side to rotate, and the chain 35 makes the two sprockets 34 rotate synchronously in the same direction, thereby making the two first screw rods 32 rotate synchronously in the same direction, and making the two first moving seats 33 move synchronously.
[0032] like Figure 2 , Figure 3 As shown, a second motor 36 is fixedly connected to the right side of the first movable seat 33 on the left side, a second screw rod 37 is fixedly connected to the output end of the second motor 36, the right end of the second screw rod 37 is rotatably connected to the left side of the first movable seat 33 on the right side, an outer wall of the second screw rod 37 is threadedly connected to the second movable seat 38, and the upper side of the telescopic rod 4 is fixedly connected to the lower surface of the second movable seat 38.
[0033] It should be noted that the second motor 36 drives the second screw rod 37 to rotate, and when the second screw rod 37 rotates, the second moving seat 38 moves laterally along the second screw rod 37 .
[0034] like Figure 3 As shown, a first limiting rod 39 is fixedly connected to an upper position of one side of the first movable seat 33 that is close to each other, and an upper side of the second movable seat 38 is movably sleeved on an outer wall of the first limiting rod 39 .
[0035] It should be noted that the first limiting rod 39 is used to limit the upper end of the second movable seat 38 to prevent the second movable seat 38 from rotating synchronously with the second screw rod 37 when the second screw rod 37 rotates.
[0036] like Figure 4 As shown, the degassing mechanism 6 includes a plug 61, and the outer wall of the wax injector 5 is movably sleeved on the inner side of the plug 61 near the lower side, and a plurality of annularly distributed second limiting rods 62 are fixedly connected to the upper surface of the plug 61. The outer wall of the wax injector 5 is movably sleeved on the outer side of the second limiting rod 62 near the lower side through a circular plate, and the outer walls of the plurality of second limiting rods 62 are movably sleeved with springs 63, and the springs 63 are located on the lower side of the circular plate.
[0037] It should be noted that the outer wall of the insert tube 61 is used to be movably inserted into the runner opening of the mold. When the telescopic rod 4 drives the wax injector 5 to move downward, the circular plate on the wax injector 5 pushes the spring 63 downward, so that the insert tube 61 is close to the runner opening. The second limit rod 62 is used to fix the insert tube 61 on the outer wall of the wax injector 5 to prevent the insert tube 61 from falling off the outer wall of the wax injector 5.
[0038] like Figure 4 , Figure 5As shown, the side wall of the insert tube 61 is provided with six annularly distributed mechanism grooves 66, the outer wall of the insert tube 61 is provided with an annular groove, and the annular groove is located on the outside of the mechanism groove 66, and the lower surface of the annular groove is slidably connected with six annularly distributed push blocks 68, the shape of the push blocks 68 is arc-shaped, and the inner sides of the six mechanism grooves 66 are movably sleeved with balls 67, and the upper and lower sides of the inner side of the annular groove are fixedly connected near the outer edge, and the outer side of the push block 68 fits the inner side of the sealing film 69, and the outer wall of the wax injector 5 is fixedly connected with an adjustment block 610 near the lower side, and the shape of the adjustment block 610 is conical, and the adjustment block 610 is located on the inner side of the insert tube 61.
[0039] It should be noted that when the wax injector 5 moves downward, the wax injector 5 drives the adjusting block 610 to move downward, and the outer surface of the adjusting block 610 pushes the ball 67, so that the ball 67 moves to the side away from each other, causing the ball 67 to push the push block 68 to move to the side away from each other, so that the push block 68 pushes the sealing film 69. The sealing film 69 is made of elastic material, and the outer surface of the sealing film 69 is stretched open, so that the gap between the insert 61 and the inner wall of the flow channel opening is closed.
[0040] like Figure 4 As shown, a sealing cover 64 is fixedly connected to the upper surface of the insert tube 61, and the middle part of the upper wall of the sealing cover 64 is movably sleeved on the outer wall of the wax injector 5 near the lower side, and an exhaust pipe 65 is fixedly connected to the upper side of the sealing cover 64 near the edge, and an exhaust pump is connected to the end of the exhaust pipe 65 away from the sealing cover 64.
[0041] It should be noted that the vacuum pump extracts the gas in the mold through the vacuum pipe 65, and the sealing cover 64 is used to seal the gap between the insertion tube 61 and the thin tubular part on the lower side of the wax injector 5.
[0042] The working principle of the utility model is as follows: first, the first motor 31 drives the first screw rod 32 on the left side to rotate, and when the first screw rod 32 on the left side rotates, it drives the first movable seat 33 thereon to move forward and backward, and when the first screw rod 32 on the left side rotates, it drives the sprocket wheel 34 on the left side to rotate, and the two sprocket wheels 34 are synchronously rotated in the same direction by relying on the chain 35, so that the two first screw rods 32 are synchronously rotated in the same direction, so that the two first movable seats 33 move synchronously, and the second motor 36 drives the second screw rod 37 to rotate, and when the second screw rod 37 rotates, the second movable seat The first motor 31 drives the first screw rod 32 to rotate, so that the wax injector 5 moves forward and backward. The second motor 36 drives the second screw rod 37 to rotate, so that the wax injector 5 moves left and right, so that the wax injector 5 can be moved to various positions in the two-dimensional plane, so that different models can be set according to actual needs, avoiding the position where the flow channel is too long due to the need to match the position of the wax injector 5. Finally, the outer wall of the insert tube 61 is used for active sleeve connection into the flow channel opening of the mold. When the telescopic rod 4 drives the wax injector 5 to move downward, the wax injector 5 moves upward. The circular plate pushes the spring 63 downward, so that the cannula 61 is close to the flow channel opening. The second limiting rod 62 is used to fix the cannula 61 on the outer wall of the wax injector 5 to prevent the cannula 61 from falling off the outer wall of the wax injector 5. When the wax injector 5 moves downward, the wax injector 5 drives the adjustment block 610 to move downward. The outer surface of the adjustment block 610 pushes the ball 67, so that the ball 67 moves to the side away from each other, causing the ball 67 to push the push block 68 to move to the side away from each other, so that the push block 68 pushes the sealing film 69. The sealing film 69 is made of elastic material. The outer surface of the sealing film 69 is stretched open so that the gap between the insert tube 61 and the inner wall of the runner opening is closed, and the vacuum pump extracts the gas in the mold through the vacuum pipe 65. The sealing cover 64 is used to seal the gap between the insert tube 61 and the thin tubular part on the lower side of the wax injector 5. By placing the insert tube 61 into the runner opening, the telescopic rod 4 drives the wax injector 5 to move downward, and the sealing film 69 is stretched open so that the gap between the insert tube 61 and the inner wall of the runner opening is closed. The vacuum pump is used to evacuate the inside of the model to avoid the problem of bubbles on the surface of the wax mold due to the inability of some gas to overflow during wax casting.
[0043] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A wax injection device for a wax injection machine, comprising a cabinet (1), characterized in that: The upper surface of the cabinet (1) is fixedly connected to a support frame (2), the upper side of the support frame (2) is fixedly connected to a moving mechanism (3), the middle part of the moving mechanism (3) is fixedly connected to a telescopic rod (4), the lower side of the telescopic rod (4) is fixedly connected to a wax injector (5), and the outer side of the wax injector (5) is movably sleeved with a degassing mechanism (6).
2. A wax injection device for a wax injection machine according to claim 1, characterized in that: The moving mechanism (3) comprises a first motor (31), the lower surface of the first motor (31) is fixedly connected to a position on the upper surface of the support frame (2) near the left front side, the output end of the first motor (31) is fixedly connected to a first screw rod (32), two first screw rods (32) are symmetrically distributed on the left and right sides, the outer walls of the first screw rods (32) are rotatably connected to bosses on the upper surface of the support frame (2) near the front and rear ends, and the outer walls of the two first screw rods (32) are both threadedly connected to first moving seats (33).
3. A wax injection device for a wax injection machine according to claim 2, characterized in that: The outer walls of the two first screw rods (32) are fixedly connected to positions near the front ends thereof with sprocket wheels (34), and the side surfaces of the sprocket wheels (34) are meshingly connected to chains (35).
4. A wax injection device for a wax injection machine according to claim 3, characterized in that: A second motor (36) is fixedly connected to the right side of the first movable seat (33) located on the left side, and a second screw rod (37) is fixedly connected to the output end of the second motor (36). The right end of the second screw rod (37) is rotatably connected to the left side of the first movable seat (33) located on the right side, and the outer wall of the second screw rod (37) is threadedly connected to the second movable seat (38). The upper side of the telescopic rod (4) is fixedly connected to the lower surface of the second movable seat (38).
5. A wax injection device for a wax injection machine according to claim 4, characterized in that: A first limiting rod (39) is fixedly connected to an upper position of one side of the first movable seat (33) that is close to each other, and an upper side of the second movable seat (38) is movably sleeved on an outer wall of the first limiting rod (39).
6. A wax injection device for a wax injection machine according to claim 1, characterized in that: The degassing mechanism (6) comprises a plug (61), the outer wall of the wax ejector (5) is movably sleeved on the inner side of the plug (61) near the lower side, and a plurality of annularly distributed second limit rods (62) are fixedly connected to the upper surface of the plug (61), the outer wall of the wax ejector (5) is movably sleeved on the outer side of the second limit rod (62) through a circular plate near the lower side, and the outer walls of the plurality of second limit rods (62) are movably sleeved with springs (63), and the springs (63) are located on the lower side of the circular plate.
7. A wax injection device for a wax injection machine according to claim 6, characterized in that: The side wall of the insert tube (61) is provided with six annularly distributed mechanism grooves (66), the outer wall of the insert tube (61) is provided with an annular groove, and the annular groove is located on the outer side of the mechanism groove (66), and the lower surface of the annular groove is slidably connected with six annularly distributed push blocks (68), the shape of the push blocks (68) is arc-shaped, and the inner sides of the six mechanism grooves (66) are movably sleeved with balls (67), and the upper and lower sides of the inner side of the annular groove are fixedly connected near the outer edge. The outer side of the push block (68) fits the inner side of the sealing film (69), and the outer wall of the wax injector (5) is fixedly connected with an adjustment block (610) near the lower side, and the shape of the adjustment block (610) is conical, and the adjustment block (610) is located on the inner side of the insert tube (61).
8. A wax injection device for a wax injection machine according to claim 7, characterized in that: A sealing cover (64) is fixedly connected to the upper surface of the insertion tube (61); the middle portion of the upper wall of the sealing cover (64) is movably sleeved on the outer wall of the wax injector (5) near the lower side; an exhaust pipe (65) is fixedly connected to the upper side of the sealing cover (64) near the edge; and an exhaust pump is connected to one end of the exhaust pipe (65) away from the sealing cover (64).