Intelligent wax injection machine

Abstract

This invention relates to the field of wax injection machine technology, specifically to an intelligent wax injection machine. The technical solution includes a mold clamping body, a wax injection module, and an injection temperature control system. The injection temperature control system includes a constant-temperature wax storage tank, which is mounted on the main frame below the rear support. A set of servo motor wax-taking mechanisms, a water-cooling module, a servo motor wax-feeding mechanism, and a servo motor wax-returning mechanism are respectively arranged on both sides of the constant-temperature wax storage tank. The beneficial effects of this invention are: the wax material for each mold is independently taken from the constant-temperature wax storage tank and undergoes a cooling process under the same time and conditions in the cooling pipe. Subsequently, the servo motor wax-feeding mechanism immediately pushes and injects the wax, avoiding temperature fluctuations caused by environmental heat dissipation, heat accumulation, or flow channel stagnation in traditional continuous flow systems. This effectively eliminates wax temperature drift and achieves high consistency between mold cycles.

Description

Technical Field

[0001] This invention relates to the field of wax injection machine technology, and specifically to an intelligent wax injection machine. Background Technology

[0002] In the investment casting process, the wax injection machine is used to inject molten wax into a metal mold to form a high-precision wax model. The quality of the wax model directly determines the dimensional accuracy and surface integrity of the subsequent castings. The fluidity, shrinkage rate and thermal stability of the wax are highly dependent on the precise control of the wax injection temperature. It is usually required that the wax injection temperature fluctuation range does not exceed ±1℃. However, existing wax injection equipment generally suffers from wax temperature drift in actual operation, which seriously affects the consistency of the wax model.

[0003] Traditional wax injection machines typically employ a single wax storage tank combined with a hydraulic injection structure. The wax material is kept at a constant temperature in a heated barrel before directly entering the wax injection channel. During this process, on the one hand, because the channel is exposed to the environment, the wax material continuously dissipates heat during transport, especially in intermittent operations or low-temperature workshop environments, which can easily lead to low wax injection temperatures, resulting in defects such as insufficient filling and cold shuts. On the other hand, during continuous high-frequency wax injection, the heat accumulation of the equipment and the delayed response of the electric heating cause the wax temperature to gradually rise, leading to mild carbonization of the wax material, increased shrinkage, and even flash. More importantly, in traditional systems, the wax material remains in the channel for a long time, undergoing repeated heating and cooling cycles, resulting in inconsistent thermal histories and making it difficult to achieve process repeatability between mold cycles.

[0004] To improve temperature control performance, some equipment introduces water cooling jackets or heat transfer oil circulation to cool or heat the flow channel. However, such solutions are still based on continuous flow mode, which cannot prevent the residual wax in the flow channel from deteriorating due to long-term residence. In addition, there is a lack of precise matching of the amount of wax injected at one time, which causes excess wax to be repeatedly heated in the low-temperature area, exacerbating temperature fluctuations.

[0005] Therefore, there is a need to invent an intelligent wax injection machine that can independently complete precise cooling, quantitative injection, and residual wax recovery for each mold batch while ensuring that the wax material is fully melted and stored. This will fundamentally eliminate temperature drift and improve the manufacturing stability and material utilization rate of high-precision wax molds. Summary of the Invention

[0006] To achieve the above objectives, the present invention provides the following technical solution: an intelligent wax injection machine, comprising a mold clamping body, a wax injection module, and an injection temperature control system;

[0007] The mold clamping machine body includes a main frame, a processing platform is installed on the front side of the top of the main frame, a rear support is installed on the rear side, a wax injection machine tool is installed on both sides of the top of the processing platform, a control screen is installed on the top of the wax injection machine tool, and a servo motor plunger clamping mechanism is installed above the wax injection machine tool.

[0008] The wax injection module includes a positioning bracket, which is installed on the side of the wax injection machine tool. A servo motor dual-axis adjustable wax injection mechanism is installed on the positioning bracket. The servo motor dual-axis adjustable wax injection mechanism includes a fifth telescopic chamber, which is vertically installed on the positioning bracket. A sliding plate is slidably installed on the surface of the fifth telescopic chamber. A sixth telescopic chamber is horizontally installed on the sliding plate. A sliding clamping component is slidably installed on the surface of the sixth telescopic chamber. A wax injection channel is installed on the sliding clamping component.

[0009] The filling temperature control system includes a constant-temperature wax storage tank, which is mounted on the main frame below the rear support. A servo motor wax extraction mechanism, a water-cooling module, a servo motor wax conveying mechanism, and a servo motor wax return mechanism are respectively arranged on both sides of the constant-temperature wax storage tank. The servo motor wax extraction mechanism includes a first wax extraction chamber, which is mounted on the top of the constant-temperature wax storage tank. A wax extraction pipe is installed at the lower end of the first wax extraction chamber and is inserted into the constant-temperature wax storage tank. A conveying conduit is connected to the side of the wax extraction pipe. The water-cooling module includes a cooling pipe, which is fed into the water. The cooling pipe is connected to a delivery conduit, and a water-cooling jacket is fitted onto the outer wall of the cooling pipe. The water-cooling jacket is connected to a water chiller. The servo motor wax delivery mechanism includes a second wax extraction chamber. The lower end of the second wax extraction chamber is connected to a four-way conduit. The left end connector of the four-way conduit is connected to the output end of the cooling pipe, and the right end connector is connected to the heat insulation channel. The output end of the heat insulation channel is connected to the wax injection channel. The servo motor wax return mechanism includes a third wax extraction chamber. The side wall of the third wax extraction chamber is connected to the lower end connector of the four-way conduit. The output end of the third wax extraction chamber is connected to a wax return pipe. The output end of the wax return pipe is connected to the upper part of the constant temperature wax storage tank.

[0010] Preferably, the servo motor wax extraction mechanism includes a first telescopic chamber, which is installed on the top of the first wax extraction chamber. A first gearbox is installed on the top of the first telescopic chamber, and the input end of the first gearbox is connected to a first motor. A wax extraction check valve is installed at the lower end of the wax extraction pipe, and a delivery check valve is installed at one end of the delivery conduit connected to the wax extraction pipe. An electrically controlled air valve is installed on the middle side wall of the delivery conduit.

[0011] Preferably, the servo motor wax feeding mechanism includes a second telescopic chamber, which is installed on the top of the second wax extraction chamber. A second gearbox is installed on the top of the second telescopic chamber, and the input end of the second gearbox is connected to the second motor. The upper end of the four-way conduit is connected to the lower end of the second telescopic chamber. An electrically controlled one-way valve is installed on the left end of the four-way conduit, an electrically controlled two-way valve is installed on the right end, and an electrically controlled wax inlet valve is installed on the lower end.

[0012] Preferably, the servo motor wax return mechanism includes a third telescopic chamber, which is installed at the input end of the third wax extraction chamber. A third gearbox is installed at the end of the third telescopic chamber away from the third wax extraction chamber. The input end of the third gearbox is connected to a third motor, and a first lead screw is installed at the output end. The first lead screw is located inside the third telescopic chamber, and a first slide rod is spirally fitted on the outer wall of the first lead screw. The first slide rod is slidably installed on the inner wall of the third telescopic chamber. A wax return one-way valve is installed at the end of the third wax extraction chamber connected to the wax return pipe.

[0013] Preferably, the servo motor plunger clamping mechanism includes a lower pressure plate, which is vertically slidably mounted on the wax injection machine tool. A fourth telescopic chamber is provided on the top of the lower pressure plate, and a fourth gearbox is installed on the upper end of the fourth telescopic chamber. The input end of the fourth gearbox is connected to a fourth motor.

[0014] Preferably, a second lead screw is provided in the first telescopic cabin, the second telescopic cabin, and the fourth telescopic cabin, and a second slide rod is slidably installed in the first telescopic cabin, the second telescopic cabin, and the fourth telescopic cabin. The second slide rod in the same telescopic cabin is threaded onto the corresponding second lead screw, and the front end of the second slide rod in the fourth telescopic cabin is fixedly connected to the lower pressure plate.

[0015] Preferably, a fifth motor is installed on the top of the fifth telescopic cabin, a third lead screw is installed at the output end of the fifth motor, the third lead screw is disposed inside the fifth telescopic cabin, a first slider is threaded onto the outer wall of the third lead screw, the first slider is slidably installed on the inner wall of the fifth telescopic cabin, and the first slider is fixedly connected to a sliding plate.

[0016] Preferably, a sixth motor is installed on the top of the sixth telescopic cabin, a fourth lead screw is installed at the output end of the sixth motor, the fourth lead screw is disposed inside the sixth telescopic cabin, a second slider is threaded onto the outer wall of the fourth lead screw, the second slider is slidably installed on the inner wall of the sixth telescopic cabin, and the second slider is fixedly connected to a sliding clamping member.

[0017] Preferably, the inner wall of the constant temperature wax storage tank is provided with a water heating pipe, the water heating pipe is connected to a water heating machine, the water heating machine continuously circulates water at a certain temperature into the water heating pipe, and the water cooling jacket is connected to a water cooling machine that continuously circulates water at a certain temperature into the water cooling jacket.

[0018] The beneficial effects of this invention are as follows: The filling temperature control system in this application, by setting two sets of servo motor wax-taking mechanisms (A / B), a water-cooling module, a servo motor wax-feeding mechanism, and a servo motor wax-returning mechanism on both sides of the constant-temperature wax storage tank, has the following significant advantages compared to the prior art:

[0019] 1. The wax material for each batch is taken out independently from the constant temperature wax storage tank and undergoes the same cooling process under the same conditions for the same time in the cooling pipe. Then, the servo motor wax delivery mechanism immediately pushes it to complete the injection. This avoids the temperature fluctuations caused by environmental heat dissipation, heat accumulation or flow channel stagnation in traditional continuous flow systems. The wax injection temperature stability can reach within ±0.5℃, so as to effectively eliminate wax temperature drift and achieve high consistency between batches.

[0020] 2. The servo motor wax feeding mechanism accurately delivers the required amount of wax to the wax injection channel according to the mold cavity volume. Excess wax is recovered by the servo motor wax return mechanism to avoid overflow or channel residue caused by excessive wax supply. At the same time, the servo motor wax return mechanism can also push all the remaining wax in the cooling pipe back to the constant temperature wax storage tank for reheating, realizing the closed-loop utilization of wax and improving the material utilization rate by more than 15%. This achieves the effect of accurate wax extraction on demand and reducing material waste.

[0021] 3. The remaining wax does not remain in the cooling pipe, but is promptly returned to the constant temperature environment by the action of the servo motor wax return mechanism, avoiding repeated thermal cycles of "high temperature → low temperature → reheating", which significantly reduces the risk of oxidation and carbonization. It is especially suitable for expensive synthetic waxes or modified waxes, so as to prevent wax deterioration and extend service life.

[0022] 4. This application uses constant temperature water as the heat exchange medium to replace flammable, high-temperature aging heat transfer oil, which is also prone to leakage, thus significantly improving the safety of equipment operation. At the same time, the entire equipment is driven by a high-precision servo motor to perform quantitative extrusion and wax injection, replacing the traditional hydraulic system. This not only avoids wax pollution and workshop environmental pollution caused by hydraulic oil leakage, but also reduces the complexity of equipment maintenance and energy consumption, which is more in line with the development requirements of green and intelligent manufacturing. Attached Figure Description

[0023] Figure 1 This is a front view of the wax injection machine provided by the present invention;

[0024] Figure 2 This is a rear view of the wax injection machine provided by the present invention;

[0025] Figure 3 This is a schematic diagram of the rear view structure of the wax injection machine provided by the present invention;

[0026] Figure 4 This is a schematic diagram of the injection temperature control system provided by the present invention;

[0027] Figure 5 A side cross-sectional view provided for this invention;

[0028] Figure 6 The rear cross-sectional view provided for this invention;

[0029] Figure 7 A side view provided for this invention;

[0030] Figure 8 This is a schematic diagram of the second wax extraction chamber structure provided by the present invention;

[0031] Figure 9 A cross-sectional view of the second wax extraction chamber provided by the present invention;

[0032] Figure 10 Detailed diagram of the servo motor wax return mechanism provided by the present invention;

[0033] Figure 11 This is a schematic diagram of the internal structure of the servo motor wax return machine provided by the present invention;

[0034] Figure 12 This is a schematic diagram of the wax injection module structure provided by the present invention.

[0035] In the diagram: 111. Main frame; 112. Machining platform; 113. Rear support; 114. Wax injection machine tool; 115. Control panel; 116. Fourth motor; 117. Fourth gearbox; 118. Fourth telescopic chamber; 119. Lower pressure plate; 121. Constant temperature wax storage tank; 122. Wax extraction pipe; 123. Conveying conduit; 124. Wax extraction check valve; 125. Conveying check valve; 126. Electrically controlled air valve; 127. Cooling pipe; 128. Water cooling jacket; 131. First wax extraction chamber; 132. First telescopic chamber; 133. First gearbox; 134. First motor; 141. Second wax extraction chamber; 142. Second telescopic chamber; 143. Second gearbox; 144. Second motor; 145. Four-way conduit. 146. Electrically controlled one-way valve; 147. Electrically controlled two-way valve; 148. Insulated flow channel; 151. Third wax extraction chamber; 152. Third telescopic chamber; 153. Third gearbox; 154. Third motor; 155. First lead screw; 156. First slide rod; 157. Electrically controlled wax inlet valve; 158. Wax return one-way valve; 159. Wax return pipe; 161. Second lead screw; 162. Second slide rod; 171. Positioning bracket; 172. Fifth telescopic chamber; 173. Sliding plate; 174. Fifth motor; 175. Third lead screw; 176. First slider; 181. Wax injection flow channel; 182. Sixth telescopic chamber; 183. Sliding clamp; 184. Sixth motor; 185. Fourth lead screw; 186. Second slider. Detailed Implementation

[0036] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0037] like Figure 1 - Figure 7 and Figure 10 , Figure 12 As shown, an intelligent wax injection machine includes a mold clamping body, a wax injection module, and an injection temperature control system.

[0038] The mold clamping machine body includes a main frame 111. A processing platform 112 is installed on the front side of the top of the main frame 111, and a rear support 113 is installed on the rear side. Wax injection machine tools 114 are installed on both sides of the top of the processing platform 112. A control screen 115 is installed on the top of the wax injection machine tool 114. A servo motor plunger clamping mechanism is installed above the wax injection machine tool 114.

[0039] The wax injection module includes a positioning bracket 171, which is installed on the side of the wax injection machine tool 114. A servo motor dual-axis adjustment wax injection mechanism is installed on the positioning bracket 171. The servo motor dual-axis adjustment mechanism includes a fifth telescopic chamber 172, which is vertically installed on the positioning bracket 171. A sliding plate 173 is slidably installed on the surface of the fifth telescopic chamber 172. A sixth telescopic chamber 182 is horizontally installed on the sliding plate 173. A sliding clamping part 183 is slidably installed on the surface of the sixth telescopic chamber 182. A wax injection channel 181 is installed on the sliding clamping part 183.

[0040] The filling temperature control system includes a constant temperature wax storage tank 121, which is mounted on the main frame 111 below the rear support 113. A servo motor wax extraction mechanism, a water-cooling module, a servo motor wax conveying mechanism, and a servo motor wax return mechanism are respectively installed on both sides of the constant temperature wax storage tank 121. The servo motor wax extraction mechanism includes a first wax extraction chamber 131, which is installed on top of the constant temperature wax storage tank 121. A wax extraction pipe 122 is installed at the lower end of the first wax extraction chamber 131 and is inserted into the constant temperature wax storage tank 121. A conveying conduit 123 is connected to the side of the wax extraction pipe 122. The water-cooling module includes a cooling pipe 127, the input end of which is connected to the conveying conduit 123. The outer wall of the conduit 123 and cooling pipe 127 is fitted with a water-cooling jacket 128, which is connected to a water chiller. The servo motor wax delivery mechanism includes a second wax extraction chamber 141, the lower end of which is connected to a four-way conduit 145. The left end of the four-way conduit 145 is connected to the output end of the cooling pipe 127, and the right end is connected to the heat insulation channel 148. The output end of the heat insulation channel 148 is connected to the wax injection channel 181. The servo motor wax return mechanism includes a third wax extraction chamber 151, the side wall of which is connected to the lower end of the four-way conduit 145. The output end of the third wax extraction chamber 151 is connected to the wax return pipe 159, and the output end of the wax return pipe 159 is connected to the upper part of the constant temperature wax storage tank 121.

[0041] In the above embodiments, it should be noted that the constant temperature wax storage tank 121 in the injection temperature control system is equipped with two sets of servo motor wax taking mechanisms (A / B), water cooling modules, servo motor wax conveying mechanisms, and servo motor wax return mechanisms on both sides. In actual operation, sets A and B work alternately.

[0042] Brief description of the working process of the device in this application:

[0043] Add solid wax to the constant temperature wax storage tank 121, and start the constant temperature wax storage tank 121 to maintain a constant temperature of 80°C to ensure that the wax is completely melted;

[0044] Start the servo motor wax extraction mechanism of group A / B. The first wax extraction chamber 131 draws the wax material in the constant temperature wax storage tank 121 into the wax extraction pipe 122 and then pushes it into the delivery pipe 123. The wax material in the delivery pipe 123 is pushed into the cooling pipe 127.

[0045] Start the water chiller to circulate 60°C cold water to the water cooling jacket 128 to cool the wax material in the cooling pipe 127 for a short time (<10 seconds);

[0046] After cooling, the servo motor wax delivery mechanism is started, and the second wax extraction chamber 141 draws the wax material in the cooling pipe 127 into the four-way conduit 145, and then quantitatively squeezes it into the wax injection channel 181 through the heat preservation channel 148.

[0047] After the second wax extraction chamber 141 accurately injects and extrudes the required volume of wax from the wax injection channel 181, the servo motor wax return mechanism is started, and the third wax extraction chamber 151 sequentially pushes all the remaining wax in the wax injection channel 181 and the cooling pipe 127 back to the constant temperature wax storage tank 121 through the wax return pipe 159.

[0048] The returned wax is reheated to 80°C in the constant temperature wax storage tank 121 and participates in the next cycle. The next cycle switches to another set of servo motor wax picking mechanism (A↔B) to achieve alternating operation.

[0049] Compared with the prior art, this application has the following significant advantages:

[0050] Each batch of wax is independently taken out from the 80°C constant temperature wax storage tank 121 and undergoes a cooling process in the cooling pipe 127 for the same time (<10 seconds) and under the same conditions (60°C water cooling). Then, the servo motor wax delivery mechanism immediately pushes it to complete the injection. This avoids the temperature fluctuations caused by environmental heat dissipation, heat accumulation or flow channel stagnation in traditional continuous flow systems. The wax injection temperature stability can reach within ±0.5°C, so as to effectively eliminate wax temperature drift and achieve high consistency between batches.

[0051] The servo motor wax feeding mechanism accurately delivers the required amount of wax to the wax injection channel 181 according to the mold cavity volume. Excess wax is recovered by the servo motor wax return mechanism to avoid overflow or channel residue caused by excessive wax supply. At the same time, the servo motor wax return mechanism can also push all the remaining wax in the cooling pipe 127 back to the constant temperature wax storage tank 121 for reheating, realizing the closed-loop utilization of wax and improving the material utilization rate by more than 15%, so as to achieve the effect of accurate wax extraction on demand and reducing material waste.

[0052] The remaining wax does not remain in the cooling pipe 127, but is promptly returned to the 80°C constant temperature environment by the action of the servo motor wax return mechanism, avoiding repeated thermal cycles of "high temperature → low temperature → reheating", significantly reducing the risk of oxidation and carbonization, especially suitable for expensive synthetic wax or modified wax, so as to prevent wax deterioration and extend service life.

[0053] This application uses constant temperature water as the heat exchange medium to replace flammable, high-temperature aging heat transfer oil, which is also prone to leakage, thus significantly improving the safety of equipment operation. At the same time, the entire equipment is driven by a high-precision servo motor to perform quantitative extrusion and wax injection, replacing the traditional hydraulic system. This not only avoids wax contamination and workshop environmental pollution caused by hydraulic oil leakage, but also reduces the complexity of equipment maintenance and energy consumption, which is more in line with the development requirements of green and intelligent manufacturing.

[0054] The control panel 115 is used to display real-time temperature, pressure, and working status; it supports parameter settings (wax injection volume, cooling time, water temperature, etc.).

[0055] The main frame 111 is also equipped with a central control box, which contains:

[0056] The PLC controller is used as the core control unit, runs the PID algorithm, and coordinates the heating / cooling / switching logic. The PLC controller is electrically connected to the control panel 115.

[0057] Switching power supplies are used to provide stable low-voltage power to PLCs, sensors, solenoid valves, etc.

[0058] Relays are used to control the opening and closing of valves, as well as high-power loads (such as servo motors and water chillers).

[0059] In addition, high-precision temperature sensors are installed at the inlet and outlet of the constant temperature wax storage tank 121, the cooling pipe 127, and the wax injection port at the front end of the wax injection channel 181. The high-precision temperature sensors are electrically connected to the PLC controller to monitor the wax temperature in real time with an accuracy of ±0.1~0.5℃.

[0060] Furthermore, the top surface of the processing platform 112 is equipped with an industrial-grade QR code scanner, and the PLC controller has been expanded with additional programs.

[0061] Add QR code data parsing logic (JSON or CSV format);

[0062] Establish a mold parameter storage area (can store 100+ sets);

[0063] It enables automatic parameter distribution to actuators such as servo motors, temperature controllers, and valves;

[0064] Add parameter validity checks (e.g., wax injection volume ≤ maximum capacity);

[0065] When using a new mold for the first time, the operator inputs or selects the key parameters of the mold (e.g., wax injection volume, mold number / name, holding pressure time, injection speed, etc.) on the control screen 115. After continuous debugging to find suitable key parameters, the PLC controller automatically generates a unique mold information data packet, encodes it as a QR code, and sends it to a remote terminal. The operator uses a label printer to print the QR code and affixes it to subsequent molds. When using the same model mold in subsequent uses, the operator installs the mold in place, scans the QR code on the mold using the QR code scanner on the processing platform 112, and the wax injection machine's PLC controller automatically parses the QR code content, retrieves all pre-stored process parameters with one click, and the operator can start wax injection after confirmation, without the need for manual debugging or parameter input. This solution, through mold information digitization + QR code binding + automatic parameter adjustment, can significantly improve the flexibility, automation, and error prevention capabilities of the wax injection machine, greatly shorten the mold change and debugging time from the traditional 5-10 minutes to within 10 seconds, and effectively improve the overall efficiency of the equipment.

[0066] like Figure 1 - Figure 11As shown, an intelligent wax injection machine further includes a servo motor wax extraction mechanism comprising a first telescopic chamber 132, which is installed on top of a first wax extraction chamber 131. A first gearbox 133 is installed on top of the first telescopic chamber 132, and the input end of the first gearbox 133 is connected to a first motor 134. A wax extraction one-way valve 124 is installed at the lower end of a wax extraction pipe 122, and a delivery one-way valve 125 is installed at one end of a delivery conduit 123 connected to the wax extraction pipe 122. An electrically controlled air valve 126 is installed on the middle side wall of the delivery conduit 123. The servo motor wax delivery mechanism includes a second telescopic chamber 142, which is installed on top of a second wax extraction chamber 141. The second telescopic chamber 142 has a second gearbox 143 mounted on its top. The input end of the second gearbox 143 is connected to the second motor 144. The upper end of the four-way conduit 145 is connected to the lower end of the second telescopic chamber 142. An electrically controlled one-way valve 146 is mounted on the left end of the four-way conduit 145, an electrically controlled two-way valve 147 is mounted on the right end, and an electrically controlled wax inlet valve 157 is mounted on the lower end. The servo motor wax return mechanism includes a third telescopic chamber 152, which is installed at the input end of the third wax extraction chamber 151. A third gearbox 153 is mounted at the end of the third telescopic chamber 152 away from the third wax extraction chamber 151. The input end of the third gearbox 153 is connected to the third motor 154, and the output end is equipped with... The first lead screw 155 is located inside the third telescopic chamber 152. A first slide rod 156 is spirally fitted onto the outer wall of the first lead screw 155. The first slide rod 156 is slidably installed on the inner wall of the third telescopic chamber 152. A one-way valve 158 for returning wax is installed at one end of the wax return pipe 159 connected to the third wax extraction chamber 151. A water-heating pipe is installed on the inner wall of the constant-temperature wax storage tank 121. The water-heating pipe is connected to a water heater, which continuously circulates 80°C water into the water-heating pipe. A water-cooling jacket 128 is connected to a water chiller, which continuously circulates 60°C water into the water-cooling jacket 128. The servo motor plunger clamping mechanism includes a lower pressure plate 119, which is vertically slidably installed on the injection... On the wax machine tool 114, a fourth telescopic chamber 118 is provided on the top of the lower pressure plate 119. A fourth gearbox 117 is installed on the upper end of the fourth telescopic chamber 118. The input end of the fourth gearbox 117 is connected to the fourth motor 116. A second lead screw 161 is provided in the first telescopic chamber 132, the second telescopic chamber 142 and the fourth telescopic chamber 118. A second slide rod 162 is slidably installed in the first telescopic chamber 132, the second telescopic chamber 142 and the fourth telescopic chamber 118. The second slide rod 162 in the same telescopic chamber is threaded onto the corresponding second lead screw 161. The front end of the second slide rod 162 in the fourth telescopic chamber 118 is fixedly connected to the lower pressure plate 119.

[0067] In the above embodiments, it should be noted that the first motor 134, the second motor 144, the third motor 154, and the fourth motor 116 are all servo motors. The wax extraction check valve 124, the delivery check valve 125, and the return check valve 158 are always kept in one direction and cannot be closed. The direction of the wax extraction check valve 124 is from the lower end of the wax extraction tube 122 to the upper end of the wax extraction tube 122, the direction of the delivery check valve 125 is from the wax extraction tube 122 to the delivery conduit 123, and the direction of the return check valve 158 is... The orientation is from the third wax extraction chamber 151 to the wax return pipe 159; both the electrically controlled one-way valve 146 and the electrically controlled wax inlet valve 157 are one-way valves that can be closed in one direction and can be changed to a closed state. The orientation of the electrically controlled one-way valve 146 is from the cooling pipe 127 to the four-way conduit 145, and the orientation of the electrically controlled wax inlet valve 157 is from the four-way conduit 145 to the third wax extraction chamber 151; the electrically controlled two-way valve 147 can be controlled to close or open; the electrically controlled air valve 126 can be controlled to open, connecting the inside and outside of the delivery conduit 123;

[0068] By starting the first motor 134, the first gearbox 133 is driven to rotate the second lead screw 161 in the first telescopic chamber 132, and the second slide bar 162 in the first telescopic chamber 132 is controlled to reciprocate along the first wax extraction chamber 131. A negative pressure is generated in the wax extraction pipe 122, and the wax in the constant temperature wax storage tank 121 is drawn in through the wax extraction check valve 124. Then, the delivery check valve 125 is opened and the wax enters the delivery conduit 123, and then enters the cooling pipe 127 along the delivery conduit 123.

[0069] After the wax in the cooling pipe 127 cools down (<10 seconds), the electrically controlled air valve 126 and the electrically controlled one-way valve 146 are opened, while the electrically controlled wax inlet valve 157 and the electrically controlled two-way valve 147 are closed. The second motor 144 is started to drive the second gearbox 143 to rotate the second lead screw 161 in the second telescopic chamber 142. The second slide rod 162 in the first telescopic chamber 132 is controlled to retract along the second telescopic chamber 142, generating negative pressure in the four-way guide tube 145, which quickly draws the wax in the cooling pipe 127 into the second wax extraction chamber 141. Then, the electrically controlled two-way valve 147 is opened, while the electrically controlled wax inlet valve 157 is closed. The second slide rod 162 in the first telescopic chamber 132 is controlled to precisely push the required amount of wax along the second telescopic chamber 142 according to the mold cavity volume + wax injection channel 181 volume + insulation channel 148 volume.

[0070] After wax injection is completed, the wax injection channel 181 is separated from the mold, the electrically controlled two-way valve 147 is closed and the electrically controlled wax inlet valve 157 is opened at the same time, the third motor 154 is started to drive the third gearbox 153 to drive the first lead screw 155 in the third telescopic chamber 152 to rotate, and control the first slide bar 156 in the third telescopic chamber 152 to reciprocate along the third telescopic chamber 152, so that the remaining wax in the cooling pipe 127 is drawn from the four-way conduit 145 into the third wax extraction chamber 151, and then pushed back to the constant temperature wax storage tank 121 through the wax return one-way valve 158 and the wax return pipe 159.

[0071] Next, close the electronically controlled air valve 126 and the electronically controlled check valve 146, and simultaneously open the electronically controlled wax inlet valve 157 and the electronically controlled two-way valve 147. Start the third motor 154 to drive the third gearbox 153 to rotate the first lead screw 155 in the third telescopic chamber 152, control the first slide bar 156 in the third telescopic chamber 152 to reciprocate along the third telescopic chamber 152, and draw the remaining wax material in the wax injection channel 181 and the heat preservation channel 148 into the third wax extraction chamber 151 through the four-way conduit 145, and push it all back to the constant temperature wax storage tank 121 through the wax return check valve 158 and the wax return pipe 159.

[0072] The water heater and water chiller constitute independent high-temperature water circulation system and medium-temperature water circulation system, respectively. The water heater continuously supplies 80°C constant-temperature water into the water heating pipe embedded in the constant-temperature wax storage tank 121 to maintain the wax in a molten state. The water chiller continuously supplies 60°C constant-temperature water into the water cooling jacket 128 of the cooling pipe 127 to controllably cool the wax. Both systems use deionized water as the heat transfer medium, which is non-toxic and non-flammable, significantly improving the safety of equipment operation.

[0073] The wax injection machine tool 114 consists of upper and lower base plates and guide columns around it. The lower pressure plate 119 is slidably mounted on the guide columns. The wax injection mold is placed on the lower base plate of the wax injection machine tool 114. By starting the fourth motor 116, the fourth gearbox 117 is driven to rotate the second lead screw 161 in the fourth telescopic chamber 118, and the second slide rod 162 in the fourth telescopic chamber 118 is controlled to extend, which drives the lower pressure plate 119 to press down on the wax injection mold, so as to achieve the effect of clamping and positioning the wax injection mold.

[0074] like Figure 1 and Figure 12As shown, an intelligent wax injection machine further includes: a fifth motor 174 installed on the top of a fifth telescopic chamber 172; a third lead screw 175 installed at the output end of the fifth motor 174; the third lead screw 175 is disposed inside the fifth telescopic chamber 172; a first slider 176 is threadedly fitted onto the outer wall of the third lead screw 175; the first slider 176 is slidably installed on the inner wall of the fifth telescopic chamber 172; and the first slider 176 is fixedly connected to a sliding plate 173. A sixth motor 184 is installed on the top of a sixth telescopic chamber 182; a fourth lead screw 185 is installed at the output end of the sixth motor 184; the fourth lead screw 185 is disposed inside the sixth telescopic chamber 182; a second slider 186 is threadedly fitted onto the outer wall of the fourth lead screw 185; the second slider 186 is slidably installed on the inner wall of the sixth telescopic chamber 182; and the second slider 186 is fixedly connected to a sliding clamping member 183.

[0075] In the above embodiments, it should be noted that the fifth motor 174 and the sixth motor 184 are both servo motors. By starting the fifth motor 174 to drive the third lead screw 175 to rotate, the first slider 176 is controlled to slide along the inner wall of the fifth telescopic chamber 172, and the sliding plate 173 is driven to slide vertically along the surface of the fifth telescopic chamber 172. By starting the sixth motor 184 to drive the fourth lead screw 185 to rotate, the second slider 186 is controlled to slide along the inner wall of the sixth telescopic chamber 182, and the sliding clamp 183 is driven to slide laterally along the surface of the sixth telescopic chamber 182, so as to achieve the effect of controlling and adjusting the vertical height and horizontal position of the wax injection channel 181, so that its front wax injection port can be smoothly inserted into the wax injection mold.

[0076] The usage process of this invention is as follows: Those skilled in the art add solid wax to the constant-temperature wax storage tank 121, and start the water heater to continuously supply 80°C constant-temperature water into the water heating pipe embedded in the constant-temperature wax storage tank 121 to ensure the wax is completely melted; then, start the first motor 134 of group A / B to drive the first gearbox 133 to rotate the second lead screw 161 in the first telescopic chamber 132, controlling the second slide bar 162 in the first telescopic chamber 132 to reciprocate along the first wax extraction chamber 131, generating negative pressure in the wax extraction tube 122, and the wax extraction tube 12... 2. The wax in the constant temperature wax storage tank 121 is drawn in through the wax extraction check valve 124, then the delivery check valve 125 is opened and the wax enters the delivery conduit 123, and then enters the cooling pipe 127 along the delivery conduit 123; the first wax extraction chamber 131 draws the wax material in the constant temperature wax storage tank 121 into the wax extraction pipe 122 and pushes it into the delivery conduit 123, and the wax material in the delivery conduit 123 is pushed into the cooling pipe 127; the water chiller is started to continuously flow 60°C constant temperature water into the water cooling jacket 128 of the cooling pipe 127 to cool the wax material in the cooling pipe 127 for a short time (<10 minutes). (seconds) Cooling; after the wax in the cooling pipe 127 has cooled, open the electrically controlled air valve 126 and the electrically controlled one-way valve 146, and simultaneously close the electrically controlled wax inlet valve 157 and the electrically controlled two-way valve 147. Start the second motor 144 to drive the second gearbox 143 to rotate the second lead screw 161 in the second telescopic chamber 142, control the second slide rod 162 in the first telescopic chamber 132 to retract along the second telescopic chamber 142, generate negative pressure in the four-way guide tube 145, and cool the wax in the cooling pipe 127. Quickly draw in the second wax extraction chamber 141; then open the electrically controlled two-way valve 147 and simultaneously close the electrically controlled wax inlet valve 157, controlling the second slide bar 162 in the first telescopic chamber 132 to precisely deliver the required amount of wax along the second telescopic chamber 142 according to the mold cavity volume + wax injection channel 181 volume + insulation channel 148 volume; after the second wax extraction chamber 141 precisely injects and extrudes the required volume of wax from the wax injection channel 181, start the third motor 154 to drive the third... The gearbox 153 drives the first lead screw 155 in the third telescopic chamber 152 to rotate, controlling the first slide rod 156 in the third telescopic chamber 152 to reciprocate along the third telescopic chamber 152, drawing the remaining wax in the cooling pipe 127 from the four-way conduit 145 into the third wax extraction chamber 151, and then pushing it all back to the constant temperature wax storage tank 121 through the wax return check valve 158 and the wax return pipe 159; then the electrically controlled air valve 126 and the electrically controlled check valve 146 are closed, while the electrically controlled wax inlet valve 15 is opened. 7 and the electrically controlled two-way valve 147 start the third motor 154 to drive the third gearbox 153 to drive the first lead screw 155 in the third telescopic chamber 152 to rotate, control the first slide bar 156 in the third telescopic chamber 152 to reciprocate along the third telescopic chamber 152, draw the remaining wax material in the wax injection channel 181 and the heat preservation channel 148 into the third wax extraction chamber 151 through the four-way conduit 145, and push it all back to the constant temperature wax storage tank 121 through the wax return one-way valve 158 and the wax return pipe 159;The returned wax is reheated to 80°C in the constant-temperature wax storage tank 121 and participates in the next cycle. The next cycle switches to another set of servo motor wax-dispensing mechanisms (A↔B), achieving alternating operation.

[0077] The above description is merely a preferred embodiment of the present invention. Any person skilled in the art can modify the present invention or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. An intelligent wax injection machine, comprising a mold clamping body, a wax injection module, and an injection temperature control system, characterized in that: The mold clamping machine body includes a main frame (111), a processing platform (112) is installed on the front side of the top of the main frame (111), a rear bracket (113) is installed on the rear side, a wax injection machine (114) is installed on both sides of the top of the processing platform (112), a control screen (115) is installed on the top of the wax injection machine (114), and a servo motor plunger clamping mechanism is installed above the wax injection machine (114). The wax injection module includes a positioning bracket (171), which is installed on the side of the wax injection machine (114). A servo motor dual-axis adjustment wax injection mechanism is installed on the positioning bracket (171). The servo motor dual-axis adjustment mechanism includes a fifth telescopic chamber (172), which is vertically installed on the positioning bracket (171). A sliding plate (173) is slidably installed on the surface of the fifth telescopic chamber (172). A sixth telescopic chamber (182) is horizontally installed on the sliding plate (173). A sliding clamping member (183) is slidably installed on the surface of the sixth telescopic chamber (182). A wax injection channel (181) is installed on the sliding clamping member (183). The filling temperature control system includes a constant temperature wax storage tank (121), which is installed on the main frame (111) below the rear support (113). A set of servo motor wax extraction mechanisms, a water-cooling module, a servo motor wax conveying mechanism, and a servo motor wax return mechanism are respectively arranged on both sides of the constant temperature wax storage tank (121). The servo motor wax extraction mechanism includes a first wax extraction chamber (131), which is installed on the top of the constant temperature wax storage tank (121). A wax extraction pipe (122) is installed at the lower end of the first wax extraction chamber (131). The wax extraction pipe (122) is inserted into the constant temperature wax storage tank (121), and a conveying conduit (123) is connected to the side of the wax extraction pipe (122). The water-cooling module includes a cooling pipe (127), which is input to… The end is connected to the delivery conduit (123), the outer wall of the cooling pipe (127) is fitted with a water cooling jacket (128), the water cooling jacket (128) is connected to a water chiller, the servo motor wax delivery mechanism includes a second wax extraction chamber (141), the lower end of the second wax extraction chamber (141) is connected to a four-way conduit, the left end connector of the four-way conduit is connected to the output end of the cooling pipe (127), the right end connector is connected to the heat preservation channel (148), the output end of the heat preservation channel (148) is connected to the wax injection channel (181), the servo motor wax return mechanism includes a third wax extraction chamber (151), the side wall of the third wax extraction chamber (151) is connected to the lower end connector of the four-way conduit, the output end of the third wax extraction chamber (151) is connected to the wax return pipe (159), the output end of the wax return pipe (159) is connected to the upper part of the constant temperature wax storage tank (121).

2. The intelligent wax injection machine according to claim 1, characterized in that: The servo motor wax extraction mechanism includes a first telescopic chamber (132), which is installed on the top of the first wax extraction chamber (131). A first gearbox (133) is installed on the top of the first telescopic chamber (132). The input end of the first gearbox (133) is connected to a first motor (134). A wax extraction check valve (124) is installed at the lower end of the wax extraction pipe (122). A delivery check valve (125) is installed at one end of the delivery conduit (123) connected to the wax extraction pipe (122). An electrically controlled air valve (126) is installed on the middle side wall of the delivery conduit (123).

3. The intelligent wax injection machine according to claim 2, characterized in that: The servo motor wax feeding mechanism includes a second telescopic chamber (142), which is installed on top of the second wax extraction chamber (141). A second gearbox (143) is installed on top of the second telescopic chamber (142). The input end of the second gearbox (143) is connected to the second motor (144). The upper end of the four-way conduit is connected to the lower end of the second telescopic chamber (142). An electrically controlled one-way valve (146) is installed on the left end of the four-way conduit, an electrically controlled two-way valve (147) is installed on the right end, and an electrically controlled wax inlet valve (157) is installed on the lower end.

4. The intelligent wax injection machine according to claim 3, characterized in that: The servo motor wax return mechanism includes a third telescopic chamber (152), which is installed at the input end of the third wax extraction chamber (151). A third gearbox (153) is installed at the end of the third telescopic chamber (152) away from the third wax extraction chamber (151). The input end of the third gearbox (153) is connected to a third motor (154), and the output end is equipped with a first lead screw (155). The first lead screw (155) is located inside the third telescopic chamber (152). A first slide rod (156) is spirally fitted on the outer wall of the first lead screw (155). The first slide rod (156) is slidably installed on the inner wall of the third telescopic chamber (152). A wax return one-way valve (158) is installed at the end of the third wax extraction chamber (151) connected to the wax return pipe (159).

5. The intelligent wax injection machine according to claim 4, characterized in that: The servo motor plunger clamping mechanism includes a lower pressure plate (119), which is vertically slidably mounted on a wax injection machine tool (114). A fourth telescopic chamber (118) is provided on the top of the lower pressure plate (119), and a fourth gearbox (117) is installed on the upper end of the fourth telescopic chamber (118). The input end of the fourth gearbox (117) is connected to a fourth motor (116).

6. The intelligent wax injection machine according to claim 5, characterized in that: The first telescopic cabin (132), the second telescopic cabin (142) and the fourth telescopic cabin (118) are each provided with a second lead screw (161), and the first telescopic cabin (132), the second telescopic cabin (142) and the fourth telescopic cabin (118) are each slidably installed with a second slide rod (162). The second slide rod (162) in the same telescopic cabin is threaded onto the corresponding second lead screw (161). The front end of the second slide rod (162) in the fourth telescopic cabin (118) is fixedly connected to the lower pressure plate (119).

7. The intelligent wax injection machine according to claim 1, characterized in that: The fifth telescopic cabin (172) is equipped with a fifth motor (174) on its top. The output end of the fifth motor (174) is equipped with a third lead screw (175). The third lead screw (175) is located inside the fifth telescopic cabin (172). The outer wall of the third lead screw (175) is threaded with a first slider (176). The first slider (176) is slidably installed on the inner wall of the fifth telescopic cabin (172). The first slider (176) is fixedly connected to the sliding plate (173).

8. The intelligent wax injection machine according to claim 1, characterized in that: The sixth telescopic cabin (182) is equipped with a sixth motor (184) on its top. The output end of the sixth motor (184) is equipped with a fourth lead screw (185). The fourth lead screw (185) is located inside the sixth telescopic cabin (182). The outer wall of the fourth lead screw (185) is threaded with a second slider (186). The second slider (186) is slidably installed on the inner wall of the sixth telescopic cabin (182). The second slider (186) is fixedly connected to the sliding clamp (183).

9. The intelligent wax injection machine according to claim 1, characterized in that: The inner wall of the constant temperature wax storage tank (121) is provided with a water heating pipe, the water heating pipe is connected to a water heating machine, the water heating machine continuously circulates water at 80°C into the water heating pipe, and the water cooling jacket (128) is connected to a water chiller that continuously circulates water at 60°C into the water cooling jacket (128).

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