CN112917780B - Centrifugal casting machine and temperature control system in casting thereof - Google Patents
Centrifugal casting machine and temperature control system in casting thereof Download PDFInfo
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- CN112917780B CN112917780B CN202011571935.7A CN202011571935A CN112917780B CN 112917780 B CN112917780 B CN 112917780B CN 202011571935 A CN202011571935 A CN 202011571935A CN 112917780 B CN112917780 B CN 112917780B
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/04—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles using movable moulds not applied
- B29C39/08—Introducing the material into the mould by centrifugal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/38—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/44—Measuring, controlling or regulating
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to the technical field of centrifugal rotation casting, in particular to a centrifugal casting machine which comprises a machine body and a control board, wherein a temperature probe, the control board, a PTC heater control button, a touch screen and a solid state relay control button are arranged, so that a specific temperature value of a process is set through the touch screen when the device is used, the actual temperature condition inside the device is detected through the temperature probe after the temperature value is set, then the temperature is transmitted to the touch screen for personnel to watch, and the PTC heater, the solid state relay and a PLC are controlled to be regulated through the PTC heater control button and the solid state relay control button on the surface of the touch screen after the personnel watch, so that the device can be automatically regulated to a required temperature value after the setting.
Description
Technical Field
The invention relates to the technical field of centrifugal rotation casting, in particular to a centrifugal casting machine.
Background
The existing casting machine is equipped with the device and is used for controlling the internal temperature of the device manually, so that the device is used for controlling the internal temperature of the device, the device can influence the ultrafiltration assembly during gel, the existing casting machine is equipped with the device, the internal temperature of the device cannot be set and regulated according to various processes during use, the device can reduce the qualification rate of products during use, and the practicability is insufficient.
CN201110336748.5 (2012-6-20) discloses a method of manufacturing hollow fiber membrane modules using a horizontal centrifugal casting method, however the process does not mention temperature control and corresponding device improvements.
CN109501093a (2019-3-22) discloses a centrifugal casting device for hollow fiber membrane modules, however the device still has to be improved for temperature control.
Disclosure of Invention
Aiming at the defects of the prior art, the first technical purpose of the invention is to provide a centrifugal casting machine, the second technical purpose is to provide a temperature control system in the epoxy casting of an ultrafiltration membrane component, which effectively solves the problems that the internal temperature of a device is manually controlled when the conventional centrifugal casting machine is used, the accuracy rate of the internal temperature control is low when the device is used, the device can influence when the device is used for gelling the ultrafiltration component, and the qualification rate of products is reduced and the practicability is insufficient.
In order to solve the technical problems, the first technical object of the present invention is achieved by the following technical scheme:
the centrifugal casting machine comprises a machine body and a control plate, wherein the lower ends of the machine body are fixedly connected with supporting legs, and one side of the machine body is connected with the control plate in an embedded manner;
The surface of the control panel is embedded and connected with a PTC heater control button, the surface of the control panel is embedded and connected with a solid state relay control button, one end of the control panel is movably connected with a hinge, one side of the machine body is embedded and connected with a heat radiation opening, one side of the heat radiation opening is fixedly connected with a corrugated pipeline, and one side of the corrugated pipeline is fixedly connected with a refrigerating air conditioner; the centrifugal machine comprises a machine body, and is characterized in that a safety protection cover is fixedly connected to the upper end of the machine body, a centrifugal machine main beam is fixedly connected to the lower end of the safety protection cover, a chassis is fixedly connected to the lower end of the centrifugal machine main beam, an angular speed reducer is fixedly connected to the inner side of the chassis, and a centrifugal rotating disc is movably connected to the upper end of the angular speed reducer.
The PTC heater is called as a PTC heating element, and is composed of a PTC ceramic heating element and an aluminum tube. The PTC heater has the advantages of small thermal resistance and high heat exchange efficiency, and is an automatic constant-temperature and electricity-saving electric heater.
As a preferable technical scheme of the centrifugal machine, the upper end of the machine body is fixedly connected with a safety protection cover, the upper ends of the safety protection covers are fixedly connected with handles, the lower ends of the safety protection covers are fixedly connected with a centrifugal machine main beam, the lower ends of the centrifugal machine main beam are fixedly connected with a bottom frame, the inner side of the bottom frame is fixedly connected with an angular speed reducer, and the upper ends of the angular speed reducers are movably connected with a centrifugal rotating disc.
As a preferable technical scheme of the invention, the upper ends of the centrifugal rotating disks are fixedly connected with an ultrafiltration membrane clamping device, the upper ends of the ultrafiltration membrane clamping devices are fixedly connected with an automatic glue supplementing tank, and one end of the angular speed reducer is fixedly connected with a driving motor.
The centrifugal system mainly comprises a driving motor and an angular speed reducer, wherein the driving motor is an energy output part, the angular speed reducer is responsible for changing the output capacity direction of the driving motor from horizontal to vertical, and drives an ultrafiltration component fixed on a rotary table to rotate at a high speed to generate centrifugal force, so that epoxy resin filled at two ends of the ultrafiltration component is offset towards two ends of the ultrafiltration component, and the epoxy resin is gradually solidified along with the increase of time to play a role in packaging membrane wires of the ultrafiltration component.
As a preferable technical scheme of the ultrafiltration membrane clamping device, one side of the ultrafiltration membrane clamping device is fixedly connected with a clamping plate, the clamping plate and the connecting bolt are arranged in a penetrating way, and the inner sides of the clamping plate and the connecting bolt are fixedly connected with a bolt.
As a preferable technical scheme of the invention, a damping system is arranged above the underframe; the damping system comprises a center bolt arranged at the center above the underframe, a damping spring sleeved on the center bolt, and a buffer piece arranged at the contact area of the damping spring and the underframe.
When the ultrafiltration component is centrifugally poured in a casting machine at a high speed, the center of gravity of the ultrafiltration component cannot be 100% guaranteed to be concentrated on a center circular point of the casting machine when clamping is achieved, vibration of the component is necessarily caused when equipment rotates, and a damping system is specially arranged in order to avoid the influence of the rotation vibration on the quality of a product of the ultrafiltration component. The damping system is characterized in that the damping system is formed by fixing a bottom plate, connecting a bolt at the center, sleeving a damping spring on the connecting bolt at the center, and providing a rubber damping cushion block at the contact part of the spring and the bottom plate, so that the damping system further plays a role in damping, and the damping adopts a combined mode of the central bolt, the spring sleeving and the rubber damping cushion block, so that the vibration in the gravity direction can be buffered, and the shaking of the whole pouring machine body can be buffered.
As a preferable technical scheme of the invention, the corrugated pipeline on one side of the refrigeration air conditioner penetrates through the surface of the machine body and is communicated to the inside, and the refrigeration air conditioner and the corrugated pipeline are combined to form an air cooling system.
As a preferable technical scheme of the invention, the PTC heater control button is electrically connected with the PTC heater, the solid state relay control button is electrically connected with the solid state relay, the PTC heater, the solid state relay, the touch screen and the control panel are integrally arranged, the temperature probe is fixedly connected with the inner side of the control panel, and the heater, the solid state relay, the temperature probe, the PLC and the control panel are combined into a heating system.
As a preferable technical scheme of the invention, the handles are fixedly connected to the upper ends of the safety protection covers, and a hinge is movably connected to one end of the control panel.
The second technical purpose of the invention is realized by the following technical scheme:
The temperature control system in the epoxy casting of the ultrafiltration membrane component adopts the centrifugal casting machine, and comprises a first temperature control system of end sockets at two ends of the ultrafiltration component, a second temperature control system formed by a heating system formed by the centrifugal casting machine, and a third temperature control system formed by an air cooling system.
The special temperature control system of the invention is better realized by the special centrifugal casting machine, is beneficial to the temperature control in the epoxy casting of the ultrafiltration membrane component, has high accuracy rate of internal temperature control and improves the qualification rate of products.
As a preferable technical scheme of the invention, the heating system is controlled by 4 PTC heaters, 2 solid state relays, 1 PLC, 1 touch screen and one temperature probe; the touch screen sets the process temperature, and the PLC and the solid relay perform PID adjustment by reading the actual value of the temperature probe and automatically heat the temperature to the set temperature; the temperature control range is + -2 percent deg.C.
The heating system control and the temperature parameter control in the specific temperature control system are beneficial to the temperature control in the epoxy casting of the ultrafiltration membrane component, the accuracy rate of the internal temperature control is high, and the qualification rate of the product is improved.
As a preferred technical scheme of the invention, the configuration of the air cooling system is as follows: the air cooling system is communicated with the inside of the casting machine through a heat preservation corrugated pipeline by an air outlet of a refrigeration air conditioner to achieve the cooling requirement, and automatically dehumidifies at constant temperature.
As a preferred technical scheme of the present invention, the control parameters of the first temperature control system are as follows: the epoxy casting time of the ultrafiltration membrane component is 8 hours, and the temperature is controlled at 25 ℃; heating process is adopted at 30 ℃ above room temperature and heating process is adopted at 25 ℃ below room temperature.
The control parameters of the first temperature control system in the specific temperature control system are beneficial to the temperature control in the epoxy casting of the ultrafiltration membrane component, so that the accuracy of the internal temperature control is further improved, and the qualification rate of products is improved.
The embodiment of the invention provides a centrifugal casting machine, which has the following beneficial effects:
1. The internal temperature of the device can be automatically controlled when the casting machine is used, so that the accuracy of the internal temperature control of the device is improved when the device is used, the influence of the device on the gel of the ultrafiltration component is prevented when the device is used, and the internal temperature of the centrifugal casting machine can be effectively set and regulated for various processes when the centrifugal casting machine is used, so that the qualification rate of products is not reduced when the device is used, and the practicability is strong;
2. The temperature probe, the control panel, the PTC heater control button, the touch screen and the solid relay control button are arranged, so that a process specific temperature value is set through the touch screen when the device is used, the actual temperature condition inside the device is detected through the temperature probe after the temperature value is set, then the temperature is transmitted to the touch screen for personnel to watch, the PTC heater, the solid relay and the PLC are controlled to be regulated through the PTC heater control button and the solid relay control button on the surface of the touch screen after the personnel watch, the device can be automatically regulated to a required temperature value after the setting is carried out, and the temperature control range of the device can be effectively kept at +/-2 percent DEG C through the PTC heater, the solid relay and the PLC;
3. when the temperature in the device is too high to adjust, the start of the refrigeration air conditioner is controlled through the touch screen, after the refrigeration air conditioner is started, the refrigeration air conditioner is conducted into the machine body through the corrugated pipeline to achieve the effects of cooling and automatic constant-temperature dehumidification, and the refrigeration air conditioner can be combined with a heating system, so that the device can keep a constant-temperature state effectively, and when different processes are processed, the advantages of the combination of the refrigeration system and the heating system are combined into a set of temperature control system, so that the device can better avoid the conditions of untimely solidification and insufficient solidification caused by too low temperature or too high temperature during use, and the integral usability of the device is enhanced;
4. The special temperature control system is better realized by the special centrifugal casting machine, is beneficial to the temperature control in the epoxy casting of the ultrafiltration membrane component, has high accuracy rate of internal temperature control and improves the qualification rate of products;
5. the heating system control and the temperature parameter control in the specific temperature control system are beneficial to the temperature control in the epoxy casting of the ultrafiltration membrane component, the accuracy rate of the internal temperature control is high, and the qualification rate of products is improved;
6. The control parameters of the first temperature control system in the specific temperature control system are beneficial to the temperature control in the epoxy casting of the ultrafiltration membrane component, so that the accuracy of the internal temperature control is further improved, and the qualification rate of products is improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the machine body of the invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2A in accordance with the present invention;
FIG. 4 is a process flow diagram of a temperature control system in centrifugal casting according to the present invention;
FIG. 5 is a schematic diagram of centrifugal casting of an ultrafiltration module according to the present invention;
FIG. 6 is a schematic view of a damping system for a centrifugal casting machine according to the present invention.
In the figure: 1. a body; 2. support legs; 3. a control board; 4. PTC heater control buttons; 5. a solid state relay control button; 6. a hinge; 7. a heat radiation port; 8. a corrugated pipe; 9. refrigerating air conditioner; 10. a safety shield; 11. a grip; 12. a chassis; 13. a centrifuge main beam; 14. an angular speed reducer; 15. centrifugal rotating disc; 16. an ultrafiltration membrane clamping device; 1601. a clamping plate; 1602. a connecting bolt; 1603. a plug pin; 17. an automatic glue supplementing tank; 18. a driving motor; 19. a touch screen; 20. a shock absorbing system; 201. a center bolt; 202. a damping spring; 203. and a buffer member.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Examples: as shown in fig. 1-6, a centrifugal casting machine comprises a machine body 1, supporting legs 2 and a control board 3, wherein the supporting legs 2 are fixedly connected to the lower end of the machine body 1, and the control board 3 is connected to one side of the machine body 1 in an embedded manner;
The PTC heater control button 4 is connected with all inlaying on the control panel 3 surface, and the control panel 3 surface inlays and is connected with solid state relay control button 5, and the inboard touch-sensitive screen 19 of inlaying of control panel 3 is connected with hinge 6, and the one end swing joint who keeps away from control panel 3 is connected with cooling hole 7 all inlaying on one side of organism 1, and cooling hole 7 one side fixedly connected with ripple pipeline 8, ripple pipeline 8 one side fixedly connected with refrigerating air conditioner 9, organism 1 upper end fixedly connected with safety protection casing 10.
The upper ends of the safety protection covers 10 are fixedly connected with handles 11, the lower ends of the safety protection covers 10 are fixedly connected with centrifuge main beams 13, the lower ends of the centrifuge main beams 13 are fixedly connected with underframes 12, the inner sides of the underframes 12 are fixedly connected with angular speed reducers 14, and the upper ends of the angular speed reducers 14 are movably connected with centrifugal rotating disks 15;
In this embodiment, through this design, the chassis 12 and the main beam 13 of the centrifuge can effectively fix the angular speed reducer 14 and internal parts, so that the overall architecture inside the machine body 1 is more stable.
The upper ends of the centrifugal rotating discs 15 are fixedly connected with an ultrafiltration membrane clamping device 16, the upper ends of the ultrafiltration membrane clamping devices 16 are fixedly connected with an automatic glue supplementing tank 17, and one end of the angular speed reducer 14 is fixedly connected with a driving motor 18;
In this embodiment, through this kind of design, make the device rotatory through centrifugal rotary disk 15 when using drives automatic glue supplementing jar 17 and rotate for the device is more comprehensive when casting, and ultrafiltration membrane clamping device 16 can effectually press from both sides tight object, prevents that the object from slipping, appears the deviation when casting.
Wherein, a clamping plate 1601 is fixedly connected to one side of the ultrafiltration membrane clamping device 16, the clamping plate 1601 and the connecting bolt 1602 are arranged in a penetrating way, and a bolt 1603 is fixedly connected to the inner sides of the clamping plate 1601 and the connecting bolt 1602;
In this embodiment, by such a design, the ultrafiltration membrane clamping device 16 can be effectively fixed by enlarging the size of the inner space by the movement of the clamping plate 1601 when clamping the object and fastening the connection bolt 1602 and the plug 1603.
As shown in fig. 6, the centrifugal casting machine further includes a vibration reduction system 20, and the vibration reduction system 20 is disposed above the bottom frame 12; the shock absorbing system 20 includes a center bolt 201 disposed at the center above the base frame 12, a shock absorbing spring 202 fitted over the center bolt 201, and a shock absorbing member 203 disposed at a contact area of the shock absorbing spring 202 with the base frame 12. The cushioning member 203 may be made of a cushioning member such as a rubber cushion pad.
When the ultrafiltration component is centrifugally poured in a casting machine at a high speed, the center of gravity of the ultrafiltration component cannot be 100% guaranteed to be concentrated on a center circular point of the casting machine when clamping is achieved, vibration of the component is necessarily caused when equipment rotates, and a damping system is specially arranged in order to avoid the influence of the rotation vibration on the quality of a product of the ultrafiltration component. The damping system is characterized in that the damping system is formed by fixing a bottom plate, connecting a bolt at the center, sleeving a damping spring on the connecting bolt at the center, and providing a rubber damping cushion block at the contact part of the spring and the bottom plate, so that the damping system further plays a role in damping, and the damping adopts a combined mode of the central bolt, the spring sleeving and the rubber damping cushion block, so that the vibration in the gravity direction can be buffered, and the shaking of the whole pouring machine body can be buffered.
The PTC heater control button 4 is electrically connected with the PTC heater, the solid-state relay control button 5 is electrically connected with the solid-state relay, the PTC heater, the solid-state relay, the touch screen 19 and the control panel 3 are integrally arranged, a temperature probe is fixedly connected to the inner side of the control panel 3, and the heater, the solid-state relay, the temperature probe, the PLC and the control panel 3 are combined into a heating system;
In this embodiment, through this design, the device sets a specific temperature value of the process through the touch screen 19 when in use, detects the actual temperature condition inside the device through the temperature probe after the temperature value is set, then transmits the temperature to the touch screen 19 for personnel to watch, and controls the PTC heater, the solid state relay and the PLC through the PTC heater control button 4 and the solid state relay control button 5 on the surface of the touch screen 19 after the personnel watch, so that the device can automatically adjust to the required temperature value after the setting.
The corrugated pipeline 8 on one side of the refrigerating air conditioner 9 penetrates through the surface of the machine body 1 and is communicated to the inside, and the refrigerating air conditioner 9 and the corrugated pipeline 8 are combined to form an air cooling system.
In this embodiment, through this kind of design, when making the inside high temperature of device adjust, carry out the start-up of control refrigeration air conditioner 9 through touch-sensitive screen 19, carry out the conduction through corrugated pipe 8 after refrigeration air conditioner 9 starts and advance inside organism 1, reach cooling and automatic constant temperature dehumidification effect, and can also combine together with heating system for the device can keep effectual keep constant temperature state.
The conventional manual temperature control method is difficult to achieve temperature accuracy. The performance difference of the produced products is very large, and the requirements of mass production on process temperature control cannot be met. The invention can effectively improve the problem by applying the influence of temperature on the gel of the sealing heads at the two ends of the ultrafiltration component and providing a set of heating system and a set of air cooling system and the specific configuration of the heating system for the casting machine, and the specific process is shown in figure 4. The heating system is controlled by 4 PTC heaters, 2 solid state relays, 1 PLC, 1 touch screen and one temperature probe. The touch screen sets the process temperature, and the PLC and the solid relay perform PID adjustment by reading the actual value of the temperature probe and automatically heat the temperature to the set temperature; the temperature control range is + -2 percent deg.C. The configuration of the air cooling system is as follows: the air cooling system is communicated with the inside of the casting machine through a heat preservation corrugated pipeline by an air outlet of a refrigeration air conditioner to achieve the cooling requirement, and automatically dehumidifies at constant temperature. The secondary set of temperature control system can accurately control the casting temperature of the ultrafiltration component, avoid untimely solidification caused by too low temperature, and have poor tightness and difficult demoulding. And the coagulation is not in place due to the overhigh temperature, and the components are scrapped.
1. The PID of the present invention is simply called by the combined action of the comparison operation (P), the integration operation (I) and the differentiation operation (D). Wherein the proportional action is a proportional band operation established at a set point (SV),
The band control variable (MV) is proportional to the deviation, providing a smooth control process without oscillations: the integral action refers to an automatic correction process for the step deviation: both the proportional action and the integral action are corrected by the control result,
It is unavoidable that a response lag will occur. The differentiating action compensates for this drawback by controlling the manipulated variable in proportion to the slope (differentiating coefficient) formed by the deviation, which accelerates the response to the disturbance.
The AT means that the PID is set by itself, and when the PID is executed, the PID calculation with the PID constant stored in advance by the user is interrupted, and after the AT is executed, the PID calculation is started (restarted) based on the calculated PID constant.
Parameters for the temperature system: p (%) 20-60, I (min) 3-10, D (min) 0.5-3.
2. TPO refers to the division ratio output, is used with PID operation instruction in a complete set, uses the input operation amount as the basis, uses the value of dividing the operation amount according to the operation range as the task ratio, converts the task ratio into the division ratio output,
And (5) pulse output is carried out, and a Solid State Relay (SSR) is controlled.
3. The epoxy casting time of the ultrafiltration membrane component is 8 hours, and the temperature is controlled at 25 ℃. Heating process is adopted at 30 ℃ above room temperature and heating process is adopted at 25 ℃ below room temperature.
The control process during epoxy casting comprises the following steps:
1. The proportion of the epoxy end sealing glue is mastered according to different temperatures;
2. mastering the casting height of the epoxy end sealing adhesive and the polyurethane;
3. centrifugally casting the epoxy end sealing glue and controlling casting time;
4. The two sides of the casting centrifugal machine are opened, so that the assembly can be conveniently moved in and out and fixed;
5. the casting centrifugal machine is additionally provided with a heater, so that the casting time is shortened and the casting quality is improved;
6. the polyurethane is statically poured by a vibration platform.
The casting sealing material is a cured product of a two-component polyurethane adhesive, wherein the two components comprise a component A and a component B, the component A is an isocyanate-terminated polyurethane prepolymer, the isocyanate-terminated polyurethane prepolymer is a product of hexamethylene diisocyanate and polyethylene glycol adipate glycol which react for 6 hours at the temperature of 80 ℃ in the ratio of 1.5:1, the component B comprises an active hydrogen component, the active hydrogen component comprises polypropylene oxide dihydric alcohol, a catalyst dibutyl tin dilaurate is added, the dosage is 0.5 per mill of the total weight, and the two-component polyurethane adhesive is prepared according to the following weight percentage: isocyanate-terminated polyurethane prepolymer: 38%, containing an active hydrogen component: 62%, after being mixed to prepare an adhesive, was centrifugally cast and then cured at 60℃for 36 hours.
Working principle: before using this device, whether the connectivity of each part of this device is good earlier, can use afterwards, through setting up temperature probe, control panel 3, PTC heater control button 4 during this device use, touch-sensitive screen 19 and solid state relay control button 5, make the device set up technology specific temperature numerical value through touch-sensitive screen 19 when using, detect the inside actual temperature condition of device through temperature probe after the temperature numerical value sets up, later with temperature transmission for the touch-sensitive screen 19 in watch, people watch the back and control PTC heater through PTC heater control button 4 and solid state relay control button 5 on touch-sensitive screen 19 surface, solid state relay and PLC adjust, make the device can the automatic regulation in required temperature value after setting up, and through PTC heater, solid state relay and PLC make the temperature control range of device can effectually keep in + -2% °c, secondly through setting up refrigerating air conditioner 9 and ripple pipeline 8, make the inside temperature of device high when adjusting, start up through touch-sensitive screen 19, after the refrigerating air conditioner 9 starts, carry out constant temperature 1 through pipeline 8 and carry out the constant temperature automatic control, can also make the temperature system and can not keep the setting up in time and can not combine the temperature system to the temperature control with the device in time, can not combine the temperature control system to the temperature control system when setting up the temperature control system, thereby can not combine the temperature control system to the temperature control system with the temperature control system, and the temperature control system is high-efficient and can not be used at the temperature control system, and the temperature control system is kept at the temperature control device, and the temperature control device is high temperature control device is used.
Finally, it should be noted that: in the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A temperature control system in casting, wherein the first temperature control system control parameters are: the epoxy casting time of the ultrafiltration membrane component is 8 hours, and the temperature is controlled at 25 ℃; heating process is adopted at more than 30 ℃ outside room temperature, and heating process is adopted at less than 25 ℃;
The temperature control system in the epoxy casting of the ultrafiltration membrane component uses a centrifugal casting machine, and comprises a first temperature control system of end sockets at two ends of the ultrafiltration membrane component, a second temperature control system formed by a heating system formed by the centrifugal casting machine, and a third temperature control system formed by an air cooling system;
the centrifugal casting machine comprises a machine body (1) and a control board (3), and is characterized in that one side of the machine body (1) is connected with the control board (3) in an embedded mode;
The solar energy heat pump control device is characterized in that PTC heater control buttons (4) are embedded and connected on the surface of the control board (3), solid-state relay control buttons (5) are embedded and connected on the surface of the control board (3), a touch screen (19) is embedded and connected on the inner side of the control board (3), a heat dissipation opening (7) is embedded and connected on one side of the machine body (1), a corrugated pipeline (8) is fixedly connected on one side of the heat dissipation opening (7), and a refrigerating air conditioner (9) is fixedly connected on one side of the corrugated pipeline (8); the centrifugal machine comprises a machine body (1), wherein the upper end of the machine body is fixedly connected with a safety protection cover (10), the lower end of the safety protection cover (10) is fixedly connected with a centrifugal machine main beam (13), the lower end of the centrifugal machine main beam (13) is fixedly connected with a bottom frame (12), the inner side of the bottom frame (12) is fixedly connected with an angular speed reducer (14), and the upper end of the angular speed reducer (14) is movably connected with a centrifugal rotating disc (15);
the upper ends of the centrifugal rotating discs (15) are fixedly connected with an ultrafiltration membrane clamping device (16), the upper ends of the ultrafiltration membrane clamping device (16) are fixedly connected with an automatic glue supplementing tank (17), and one end of the angular speed reducer (14) is fixedly connected with a driving motor (18);
A damping system is arranged above the underframe; the damping system comprises a center bolt arranged in the center above the underframe, a damping spring sleeved on the center bolt, and a buffer piece arranged in the contact area between the damping spring and the underframe;
The casting sealing material is selected as a curing product of a bi-component polyurethane adhesive, wherein the bi-component polyurethane adhesive comprises a component A and a component B, the component A is an isocyanate-terminated polyurethane prepolymer, the isocyanate-terminated polyurethane prepolymer is a product of the reaction of hexamethylene diisocyanate and polyethylene glycol adipate diol at the temperature of 80 ℃ for 6 hours according to the proportion of 1.5:1, the component B comprises an active hydrogen component, the active hydrogen component comprises polyoxypropylene glycol, a catalyst dibutyl tin dilaurate is added, the dosage is 0.5 per mill of the total weight, and the bi-component polyurethane adhesive is prepared according to the following weight percentage: isocyanate-terminated polyurethane prepolymer: 38%, containing an active hydrogen component: 62%, after being mixed to prepare an adhesive, was centrifugally cast and then cured at 60℃for 36 hours.
2. The temperature control system in casting according to claim 1, wherein the corrugated pipe (8) on one side of the refrigerating air conditioner (9) is connected to the inside through the surface of the machine body (1), and the refrigerating air conditioner (9) and the corrugated pipe (8) are combined to form an air cooling system.
3. The temperature control system in casting according to claim 2, wherein a clamping plate (1601) is fixedly connected to one side of the ultrafiltration membrane clamping device (16), the clamping plate (1601) and the connecting bolt (1602) are arranged in a penetrating manner, and a bolt (1603) is fixedly connected to the inner side of the clamping plate (1601) and the connecting bolt (1602).
4. A temperature control system in casting according to claim 3, characterized in that the PTC heater control button (4) is electrically connected with the PTC heater, the solid state relay control button (5) is electrically connected with the solid state relay, the PTC heater, the solid state relay, the touch screen (19) and the control board (3) are integrally arranged, a temperature probe is fixedly connected to the inner side of the control board (3), and the heater, the solid state relay, the temperature probe, the PLC and the control board (3) are combined into a heating system.
5. The temperature control system in casting according to claim 4, wherein the lower ends of the machine body (1) are fixedly connected with supporting legs (2), the upper ends of the safety protection covers (10) are fixedly connected with grips (11), and one end of the control panel (3) is movably connected with a hinge (6).
6. The in-mold temperature control system of claim 5, wherein the heating system is controlled by 4 PTC heaters, 2 solid state relays, 1 PLC, 1 touch screen, one temperature probe; the touch screen sets the process temperature, and the PLC and the solid relay perform PID adjustment by reading the actual value of the temperature probe and automatically heat the temperature to the set temperature; the temperature control range is + -2 percent deg.C.
7. The in-mold temperature control system of claim 6, wherein the air cooling system is configured to: the air cooling system is communicated with the inside of the casting machine through a heat preservation corrugated pipeline by an air outlet of a refrigeration air conditioner to achieve the cooling requirement, and automatically dehumidifies at constant temperature.
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