An automatic batching machine for molding agents capable of fixed-point weighing and individual control

Abstract

The present invention discloses an automatic batching machine for molding agents that can be weighed at a fixed point and controlled individually, including a frame platform, a wax melting barrel, a batching pipeline, a pneumatic control valve, a cast aluminum heating system, a gas pressurized anti-oxidation system, a material receiving mechanism, a material transporting mechanism, a control panel, a process classification control system, and a spiral feeding and weighing mechanism; the control panel controls the temperature and pressure in each wax melting barrel, and the liquid molding agent in each barrel is sent to the material receiving barrel through the batching pipeline for batching and weighing; after the batching is completed, the material receiving barrel is transported by the material transporting mechanism. The spiral feeding and weighing mechanism is used for weighing and discharging molding agents that are powdery and easily oxidized when heated. The present invention can automatically carry out fixed-point weighing and batching of different molding agents, with high batching efficiency and good precision, avoiding environmental pollution, and having an automatic transportation function; it can realize process classification control, and can control the temperature and pressure of the wax melting barrels separately, and can adjust the process requirements at any time, with higher flexibility and better material properties.

Description

Technical Field

[0001] The invention relates to the technical field of hard alloy bar processing, in particular to an automatic batching machine for forming agents capable of fixed-point weighing and individual control. Background Art

[0002] Cemented carbide is a composite material made of refractory metal compounds and bonding metals produced by powder metallurgy. It has the advantages of high hardness, high wear resistance and good heat resistance, and is widely used in the field of milling. Cemented carbide rod is a kind of cemented carbide made into a rod shape. It has stable mechanical properties, easy welding, high wear resistance and high impact resistance. It is widely used in the processing of various tools. With the rapid development of industry, the demand for cemented carbide rod products is also increasing. In the process of cemented carbide rod processing, it is necessary to mix the extrusion molding agent. The existing extrusion molding agents are mostly made by manual mixing. Due to the variety of molding agents, the use of manual mixing has the following disadvantages: the method is cumbersome and prone to errors, the weighing accuracy is difficult to control, the feeding is prone to blockage, and the efficiency is low, which is not conducive to stable large-scale production.

[0003] The invention application with application number CN201910198015.6 discloses an automatic batching device for forming agents, comprising a frame; a batching channel is provided in the middle of the frame; batching platforms are provided on both sides of the batching channel, and a plurality of water-bath wax melting barrels are installed along the direction of the batching channel on the batching platform on one side, and each water-bath wax melting barrel is provided with a first loading inner cavity, and a plurality of ordinary barrels are installed along the direction of the batching channel on the batching platform on the other side, and each ordinary barrel is provided with a second loading inner cavity; each water-bath wax melting barrel is provided with a water bath cavity, and the water bath cavity is provided between the first loading inner cavity and the barrel wall of the water-bath wax melting barrel Each water bath cavity is respectively provided with a water inlet and a water outlet, and is connected to the hot water tank through pipe fittings; each water bath wax melting barrel is also respectively provided with a first discharge port toward the batching channel, the first discharge port is communicated with the first loading inner cavity, and the first discharge port is equipped with a first discharge control valve; each ordinary barrel is provided with a second discharge port toward the batching channel, the second discharge port is communicated with the second loading inner cavity, and the second discharge port is equipped with a second discharge control valve; the batching channel is provided with a track along the direction of the batching channel, and the track is provided with a material receiving and transferring platform that can move along the track.

[0004] Although the above-mentioned existing technology has made certain progress compared with manual ingredients, it still has many defects. For example, the temperature control of the constant temperature water bath is not precise enough to meet the preparation requirements of some easily oxidized molding agents, the pollution of the preparation process environment cannot be avoided, and the preparation process cannot be observed and monitored in real time; in addition, the special requirements for the preparation of some powdered molding agents that are easily oxidized during heating cannot be met. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an automatic batching machine for molding agents that can be weighed at fixed points and individually controlled, which can realize automatic batching of multiple molding agents and has the characteristics of accurate batching and high batching efficiency.

[0006] The technical solution adopted by the present invention to solve the technical problem is: an automatic batching machine for molding agent that can be weighed at a fixed point and controlled independently, the automatic batching machine for molding agent comprising a frame platform, a wax melting barrel, a batching pipeline, a pneumatic control valve, a cast aluminum heating system, a gas pressurized anti-oxidation system, a material receiving mechanism, a material transporting mechanism, a control panel, a process classification control system, and a spiral feeding and weighing mechanism; the control panel is used to control the automatic operation of the whole machine, the frame platform adopts a ring-shaped structure design, and a plurality of the wax melting barrels are evenly distributed in a ring shape in the middle of the frame platform, and a batching channel is provided on the outside of the frame platform; the wax melting barrel is heated and temperature-controlled by the cast aluminum heating system, and the wax melting barrel is pressure-controlled by the gas pressurized anti-oxidation system; the bottom of the wax melting barrel is connected to the material receiving mechanism with an automatic weighing function through a batching pipeline, and the material receiving mechanism transports the prepared molding agent to a fixed point through the material transporting mechanism; the spiral feeding and weighing mechanism is used for weighing and discharging molding agents that are powdery and easily oxidized during heating.

[0007] Furthermore, a semi-enclosed space is formed in the middle of the annularly distributed wax melting barrels, and the material receiving mechanism is arranged in the semi-enclosed space; an observation window is arranged in the central part of the frame platform; and an annular artificial passage is arranged in the lower space of the frame platform to facilitate equipment maintenance.

[0008] Furthermore, the wax melting barrel includes an inner liner, an insulation layer, an outer jacket, a barrel cover, a temperature sensor, and a liquid level sensor; the insulation layer includes side insulation cotton arranged on the side of the wax melting barrel and barrel bottom insulation cotton arranged on the bottom of the wax melting barrel; the cast aluminum heating system is arranged between the bottom of the wax melting barrel and the barrel bottom insulation cotton.

[0009] Furthermore, the wax melting barrel is connected to the dosing pipeline through a blanking valve, and the dosing pipeline adopts a centralized layout; the blanking valve includes a blanking coarse control valve and a blanking fine control valve; a sewage pipe is also provided at the bottom of the wax melting barrel, and the wax melting barrel is connected to the sewage pipe through the sewage valve; the blanking coarse control valve meets 80% to 90% of the blanking weight, and the remaining weight is discharged through the blanking fine control valve.

[0010] Furthermore, the cast aluminum heating system includes a cast aluminum heating block, ceramic terminals, and a digital display temperature controller; the cast aluminum heating block has an electric heating tube inside, and is equipped with two thermal resistors and a material temperature monitoring device with a material temperature feedback function; various parameters of the cast aluminum heating system during the heating and insulation process are displayed in real time through the control panel.

[0011] Furthermore, the gas pressurized anti-oxidation system includes a pressure-sealed barrel and a gas pipeline device, wherein the pressure-sealed barrel includes a sealed barrel body, a sealed barrel cover, a pressure gauge, and a safety valve; the gas pipeline device includes a solenoid valve and a digital pressure monitor; and the pressure-sealed barrel is filled with inert gas.

[0012] Furthermore, the material receiving mechanism includes a material receiving bucket and a weighing module arranged at the bottom of the material receiving bucket.

[0013] Furthermore, the material transport mechanism includes a guide rail, a rack, a gear and a servo motor; the material receiving mechanism reciprocates on the guide rail to realize automatic material receiving and discharging; the motor shaft of the servo motor is equipped with the gear, and the gear is meshed with the rack to realize radial torque transmission.

[0014] Furthermore, the control panel includes a touch screen display and a biometric control system; the touch screen display is used to control the automatic operation of the whole machine, the parameter setting of each process module and the real-time display of various parameters in the production process; the biometric control system can enter the different modules of the control panel for operation only through process classification biometric recognition authority, so as to realize hierarchical control of the process.

[0015] Furthermore, the spiral feeding and weighing mechanism includes a spiral conveyor, a material receiving butterfly valve, a spiral weighing module and a bracket; the spiral feeding and weighing mechanism continuously feeds materials through a spiral rotating machine, transports materials from the storage bin or other feeding equipment and performs weight detection through a spiral weighing module; at the same time, a speed sensing spiral installed at the end performs speed detection; the detected weight signal and speed signal are sent to the spiral weighing module together for calculus processing and display the instantaneous flow rate in tons per hour and the cumulative amount in tons.

[0016] The beneficial effects of the present invention are as follows: compared with the prior art, in the automatic batching machine for molding agents that can be weighed at a fixed point and controlled individually, the frame platform adopts a ring-shaped structure design, and the material receiving mechanism is arranged inside a semi-enclosed space, which effectively avoids environmental pollution during the batching process. A transparent observation window is arranged in the middle of the frame platform, which is convenient for monitoring during the production and operation of the equipment. There is a ring-shaped artificial passage in the lower space of the frame platform, which is convenient for equipment maintenance. Each wax melting barrel adopts an independent electric heating temperature control method, and any temperature setting within 200°C can be set; each wax melting barrel adopts an independent gas pressurization anti-oxidation system, which can independently control the gas pressure in the barrel, improve the fluidity of the molding agent, and prevent the material from contacting the air and oxidizing and polluting. The equipment realizes automatic control of single-machine process classification. Operators with different permissions can enter different modules of the control panel for operation only after being confirmed by the biometric recognition system. This can effectively control the production process in a hierarchical manner. In addition, the present invention provides an automatic molding agent batching machine that can be weighed at a fixed point and independently controlled. The entire machine is automatically controlled through a control panel, which is convenient and intelligent. The different heating temperatures and gas pressures of each wax melting barrel can be independently controlled to achieve better material fluidity, higher material feeding accuracy, and higher production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of the automatic batching machine for forming agent provided by the present invention.

[0018] Figure 2 The present invention is a schematic side structural diagram of the automatic batching machine for forming agent provided by the present invention.

[0019] Figure 3 The present invention is a schematic diagram of the top view of the automatic batching machine for forming agent provided by the present invention.

[0020] Figure 4 for Figure 3 A magnified view of the local structure of area A in the middle.

[0021] Figure 5 This is a schematic structural diagram of the gas pressurized anti-oxidation wax melting barrel provided by the present invention.

[0022] Figure 6 This is a schematic structural diagram of the wax melting barrel of the electric heating system provided by the present invention.

[0023] Figure 7 for Figure 6 Cross-sectional view of the mid-melt wax barrel.

[0024] Figure 8 This is a structural schematic diagram of the material conveying mechanism of the automatic molding agent batching machine provided by the present invention.

[0025] Fig. 9 This is a schematic structural diagram of the molding agent spiral feeding and weighing mechanism provided by the present invention.

[0026] Among them, 1- rack platform; 2- wax melting barrel; 3- batching pipeline; 4- blanking valve; 5- cast aluminum heating system; 6- gas pressurization anti-oxidation system; 7- material transport mechanism; 8- weighing module; 9- material receiving barrel; 10- control panel; 11- spiral feeding weighing mechanism; 101- observation window; 201- liquid level sensor; 202- drain valve; 203- liner; 204- outer jacket; 205- barrel cover; 206- barrel bottom insulation cotton; 207- temperature sensor; 208-side insulation cotton; 401-blanking coarse control valve; 402-blanking fine control valve; 601-sealed barrel; 602-sealed barrel cover; 603-gas pipeline device; 604-pressure gauge; 605-safety valve; 701-guide rail; 702-drag chain; 703-servo motor; 704-accordion cover; 705-rack; 801-storage silo; 802-screw conveyor; 803-material receiving butterfly valve; 804-screw weighing module; 805-bracket. DETAILED DESCRIPTION

[0027] The present invention is further described below by specific examples, but these examples are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0028] Example

[0029] like Figures 1 to 9 As shown, an automatic batching machine for molding agent capable of fixed-point weighing and individual control, the automatic batching machine for molding agent comprises a frame platform 1, a wax melting barrel 2, a batching pipeline 3, a pneumatic control valve, a cast aluminum heating system 5, a gas pressurized anti-oxidation system 6, a material receiving mechanism, a material transporting mechanism 7, a control panel 10, a process classification control system, and a spiral feeding and weighing mechanism 11; the control panel 10 is used to control the automatic operation of the whole machine, the frame platform 1 adopts a ring-shaped structure design, a plurality of the wax melting barrels 2 are evenly distributed in a ring shape in the middle of the frame platform 1, and a batching channel is provided on the outside of the frame platform 1; the wax melting barrel 2 is heated and temperature-controlled by the cast aluminum heating system 5, and the wax melting barrel 2 is pressure-controlled by the gas pressurized anti-oxidation system 6; the bottom of the wax melting barrel 2 is connected to the material receiving mechanism with automatic weighing function through the batching pipeline 3, and the material receiving mechanism transports the prepared molding agent to a fixed point through the material transporting mechanism 7; the spiral feeding and weighing mechanism 11 is used for weighing and discharging molding agents that are powdery and easily oxidized during heating.

[0030] In one embodiment, the middle of the annularly distributed wax melting barrel 2 forms a semi-enclosed space, and the material receiving mechanism is arranged in the semi-enclosed space; it can effectively avoid environmental pollution during the batching process and facilitate the operation of the equipment 5S. A transparent observation window 101 is provided in the center of the rack platform 1 to facilitate monitoring during the production and operation of the equipment. The lower space of the rack platform 1 has an annular artificial passage to facilitate equipment maintenance.

[0031] In one embodiment, the wax melting barrel 2 includes an inner liner 203, an insulation layer, an outer jacket 204, a barrel cover 205, a temperature sensor 207, and a liquid level sensor 201; the insulation layer includes side insulation cotton 208 arranged on the side of the wax melting barrel 2 and barrel bottom insulation cotton 206 arranged on the bottom of the wax melting barrel 2; the cast aluminum heating system 5 is arranged between the bottom of the wax melting barrel 2 and the barrel bottom insulation cotton 206. The material fluidity is improved by the stable insulation temperature, thereby improving the blanking accuracy.

[0032] In one of the embodiments, the wax melting barrel 2 is connected to the dosing pipeline 3 through a blanking valve 4, and the dosing pipeline 3 adopts a centralized layout; the blanking valve 4 includes a blanking coarse control valve 401 and a blanking fine control valve 402; a sewage pipe is also provided at the bottom of the wax melting barrel 2, and the wax melting barrel 2 is connected to the sewage pipe through the sewage valve 202; the blanking coarse control valve 401 meets 80% to 90% of the blanking weight, and the remaining weight is discharged through the blanking fine control valve 402.

[0033] In one embodiment, the cast aluminum heating system 5 includes a cast aluminum heating block, a ceramic terminal, and a digital display temperature controller; the cast aluminum heating block has an electric heating tube inside, and is equipped with two thermal resistors and a material temperature monitoring device with a material temperature feedback function; through the material temperature monitoring device, during the material melting stage, the temperature is quickly raised to meet the material melting efficiency; during the insulation stage, low-temperature insulation is achieved to achieve high efficiency and energy saving. All parameters of the cast aluminum heating system 5 during the heating and insulation process are displayed in real time through the control panel 10.

[0034] In one embodiment, the gas pressurized anti-oxidation system 6 includes a pressure sealed barrel and a gas pipeline device 603. The pressure sealed barrel includes a sealed barrel body 601, a sealed barrel cover 602, a pressure gauge 604, and a safety valve 605. The gas pipeline device 603 includes a solenoid valve and a digital pressure monitor, thereby improving the fluidity of the material through a slight positive pressure. The pressure sealed barrel is filled with an inert gas to prevent the material from being oxidized and dirty by contact with air, and at the same time facilitates the uniform and stable discharge of the molding agent with high viscosity, ensuring the precision control of the blanking weight.

[0035] In one embodiment, the material receiving mechanism includes a material receiving bucket 9 and a weighing module 8 arranged at the bottom of the material receiving bucket 9. The material transporting mechanism 7 includes a guide rail 701, a rack 705, a gear and a servo motor 703; the material receiving mechanism reciprocates on the guide rail 701 to realize automatic material receiving and discharging; the motor shaft of the servo motor 703 is equipped with the gear, and the gear is meshed with the rack 705 to realize radial torque transmission. The material transporting mechanism 7 also includes a drag chain 702 and an accordion shield 704 arranged on the guide rail 701.

[0036] In one embodiment, the control panel 10 includes a touch screen display and a biometric control system; the touch screen display is used to control the automatic operation of the whole machine, the parameter setting of each process module and the real-time display of various parameters in the production process; the biometric control system can enter the different modules of the control panel 10 for operation only through process classification biometric recognition authority, so as to realize hierarchical control of the process.

[0037] In one embodiment, the spiral feeding and weighing mechanism 11 includes a spiral conveyor 802, a material receiving butterfly valve 803, a spiral weighing module 804 and a bracket 805; the spiral feeding and weighing mechanism 11 continuously feeds materials through a spiral rotating machine, transports materials from the storage bin 801 or other feeding equipment, and performs weight detection through a spiral weighing module 804; at the same time, a speed sensing spiral (not shown) installed at the end performs speed detection; the detected weight signal and speed signal are sent to the spiral weighing module 804 together for calculus processing and display the instantaneous flow rate in tons per hour and the cumulative amount in tons.

[0038] The working mode of the automatic batching machine is as follows: before the molding agent is automatically batched, a certain amount of molding agent needs to be manually put into the wax melting barrel 2. The heating temperature, insulation temperature and gas pressure of the molding agent in each wax melting barrel can be individually controlled through the control panel 10. When the molding agent of each brand reaches the temperature and pressure requirements, the batching state can be entered. When the molding agent is automatically batched, it first reaches the origin return position through the material receiving barrel 9, and then peels and weighs to meet the precise control of subsequent material dropping. Finally, it switches to automatic mode to start automatic batching. During batching, the liquid molding agent passes through the respective batching pipes 3, and automatically opens the rough control valve 401 and the fine control valve 402 of each wax melting barrel 2 for batching. The rough control valve 401 satisfies 80% to 90% of the blanking weight, and the remaining weight is discharged through the fine control valve 402. The receiving barrel 9 is weighed at a fixed position, and a high-precision weighing module 8 is provided at the bottom of the receiving barrel 9. After the batching of each brand of molding agent is completed, the receiving barrel 9 is transported to the set manual unloading position through the servo feeding mechanism.

[0039] The quantitative feeding of the powdered forming agent is realized by the spiral feeding and weighing mechanism 11. The feeding process is continuous feeding by the spiral rotating machine. The material from the storage bin 801 or other feeding equipment is transported and weight detected by the spiral weighing module 804. At the same time, the speed sensing spiral installed at the end performs speed detection. The detected weight signal and speed signal are sent to the spiral weighing module 804 for calculus processing and the instantaneous flow rate in tons per hour and the cumulative amount in tons are displayed.

[0040] The above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The patent protection scope of the present invention should be defined by the claims.

Claims

1. An automatic batching machine for forming agents capable of fixed-point weighing and individual control, characterized in that: The automatic batching machine includes a frame platform, a wax melting barrel, a batching pipeline, a pneumatic control valve, a cast aluminum heating system, a gas pressurized anti-oxidation system, a material receiving mechanism, a material transporting mechanism, a control panel, a process classification control system, and a spiral feeding and weighing mechanism; the control panel is used to control the automatic operation of the whole machine, the frame platform adopts a ring-shaped structure design, and a plurality of wax melting barrels are evenly distributed in a ring shape in the middle of the frame platform, and a batching channel is provided on the outside of the frame platform; the wax melting barrel is heated and temperature-controlled by the cast aluminum heating system, and the wax melting barrel is pressure-controlled by the gas pressurized anti-oxidation system; the bottom of the wax melting barrel is connected to the material receiving mechanism with automatic weighing function through a batching pipeline, and the material receiving mechanism transports the prepared molding agent to a fixed point through the material transporting mechanism; the spiral feeding and weighing mechanism is used for weighing and discharging molding agents that are in powder form and easily oxidized during heating; The middle of the annularly distributed wax melting barrel forms a semi-enclosed space, and the material receiving mechanism is arranged in the semi-enclosed space; an observation window is arranged at the center of the rack platform; and a circular artificial passage is arranged in the lower space of the rack platform to facilitate equipment maintenance; The cast aluminum heating system includes a cast aluminum heating block, a ceramic terminal, and a digital display temperature controller; the cast aluminum heating block is provided with an electric heating tube inside, and is equipped with two thermal resistors and a material temperature monitoring device with a material temperature feedback function; various parameters of the cast aluminum heating system during the heating and heat preservation process are displayed in real time through the control panel; The gas pressurized anti-oxidation system comprises a pressure sealed barrel and a gas pipeline device, wherein the pressure sealed barrel comprises a sealed barrel body, a sealed barrel cover, a pressure gauge, and a safety valve; the gas pipeline device comprises a solenoid valve and a digital pressure monitor; the pressure sealed barrel is filled with inert gas; The control panel includes a touch screen display and a biometric control system; the touch screen display is used to control the automatic operation of the whole machine, the parameter setting of each process module and the real-time display of various parameters in the production process; the biometric control system can enter different modules of the control panel for operation only through process graded biometric recognition authority, so as to realize graded control of the process; The spiral feeding and weighing mechanism includes a spiral conveyor, a material receiving butterfly valve, a spiral weighing module and a bracket; the spiral feeding and weighing mechanism continuously feeds materials through a spiral rotating machine, transports materials from a storage bin or other feeding equipment, and performs weight detection through a spiral weighing module; at the same time, a speed sensing spiral installed at the end performs speed detection; the detected weight signal and speed signal are sent to the spiral weighing module together for calculus processing and display the instantaneous flow rate in tons per hour and the cumulative amount in tons.

2. The automatic batching machine for forming agent capable of fixed-point weighing and individual control as claimed in claim 1, characterized in that: The wax melting barrel includes an inner liner, an insulation layer, an outer jacket, a barrel cover, a temperature sensor, and a liquid level sensor; the insulation layer includes side insulation cotton arranged on the side of the wax melting barrel and barrel bottom insulation cotton arranged on the bottom of the wax melting barrel; the cast aluminum heating system is arranged between the bottom of the wax melting barrel and the barrel bottom insulation cotton.

3. An automatic batching machine for forming agents capable of fixed-point weighing and individual control as claimed in claim 1 or 2, characterized in that: The wax melting barrel is connected to the material distribution pipeline through a blanking valve, and the material distribution pipeline adopts a centralized layout; the blanking valve includes a blanking coarse control valve and a blanking fine control valve; a sewage pipe is also provided at the bottom of the wax melting barrel, and the wax melting barrel is connected to the sewage pipe through a sewage valve; the blanking coarse control valve meets 80% to 90% of the blanking weight, and the remaining weight is discharged through the blanking fine control valve.

4. The automatic batching machine for forming agent capable of fixed-point weighing and individual control as claimed in claim 1, characterized in that: The material receiving mechanism comprises a material receiving bucket and a weighing module arranged at the bottom of the material receiving bucket.

5. The automatic batching machine for forming agent capable of fixed-point weighing and individual control as claimed in claim 1, characterized in that: The material transport mechanism includes a guide rail, a rack, a gear and a servo motor; the material receiving mechanism reciprocates on the guide rail to realize automatic material receiving and discharging; the motor shaft of the servo motor is equipped with the gear, and the gear is meshed with the rack to realize radial torque transmission.

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