Air-cooled precise temperature control mold temperature controller

Abstract

The utility model belongs to the field of composite material processing equipment, and particularly relates to a precise temperature control mold temperature controller suitable for forced air cooling, which comprises an oil tank and a glue tank, an outlet of the oil tank is connected with an oil pump through a pipeline, an output end of the oil pump is connected with a heater through a pipeline, and a tee joint is mounted at an outlet of the heater. One end of the tee joint is connected with an inlet of the glue groove through a pipeline, an outlet temperature sensor is installed at an outlet of the tee joint, and an outlet of the glue groove is connected with the oil tank through a pipeline. The other end of the tee joint is connected with the electromagnetic valve, the electromagnetic valve is communicated with an inlet of the air cooler through a pipeline, and an outlet of the air cooler is connected with the oil tank through a pipeline; according to the utility model, the temperature can be accurately controlled according to requirements, more use requirements can be met, in addition, a cooling-water machine or a condensing tower does not need to be provided, and the use cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of composite material processing equipment, specifically a wind-cooled precision temperature control mold temperature controller. Background Technology

[0002] Composite materials are a new type of material composed of reinforcing materials and resins. During the production process, depending on the properties of the resin, it is necessary to heat the resin, and the temperature must be limited to a specific range. For some resins, the production temperature is only 30-40℃.

[0003] In the composite material impregnation process, the resin is heated by placing it in an impregnation tank and heating it with hot water / hot oil through a partition. The hot water / hot oil is heated by a mold temperature controller and then pressurized by a pump and transported through pipelines to the impregnation tank partition to heat the resin.

[0004] Mold temperature controllers primarily achieve hot water / hot oil supply through closed-loop control between a temperature sensor and a heater. However, in actual use, the high-speed rotating pump (often a multi-stage vane pump, pressure above 0.3 MPa) generates high-speed friction between the rotating vanes and the fluid (hot water / hot oil) during delivery. This friction generates heat, which is not controlled by the heater or temperature sensor. In actual use, the heat generated by the pump can raise the fluid temperature by 15–20°C.

[0005] In the production process of a specific resin (e.g., the required production temperature is 35℃), the ambient temperature is affected by seasonal changes. In summer, the ambient temperature is 30℃. At this time, the mold temperature controller needs to provide hot water / hot oil at 35℃. However, because the pump itself generates heat, the temperature of the hot water / hot oil provided is 50-55℃, which is far higher than the required temperature.

[0006] Existing mold temperature controllers include those equipped with heat exchangers, which require a cooling water supply for heat dissipation. This method necessitates the use of an ice machine or condensation tower to provide circulating water, resulting in high equipment costs unsuitable for low-cost applications. Therefore, to address these issues, an air-cooled, precision temperature control mold temperature controller is proposed. Utility Model Content

[0007] To address the shortcomings of existing technologies and solve the problem that current mold temperature controllers equipped with heat exchangers require a cooling water supply for heat dissipation, which necessitates the use of ice machines or condensation towers to provide circulating water, resulting in high equipment costs unsuitable for low-cost applications, this invention proposes an air-cooled precision temperature control mold temperature controller.

[0008] The technical solution adopted by this utility model to solve its technical problem is as follows: The air-cooled precision temperature control mold temperature controller of this utility model includes an oil tank and a glue tank. An oil pump is connected to one outlet of the oil tank through a pipeline. A heater is connected to the output end of the oil pump through a pipeline. A tee is installed at the outlet of the heater. One end of the tee is connected to the inlet of the glue tank through a pipeline. An outlet temperature sensor is installed at the outlet of the tee. The outlet of the glue tank is connected to the oil tank through a pipeline.

[0009] The other end of the tee is connected to a solenoid valve, the solenoid valve is connected to the inlet of the air cooler through a pipeline, and the outlet of the air cooler is connected to the oil tank through a pipeline.

[0010] Another outlet of the oil tank is connected to a low-speed single-stage vane pump via a pipeline, and the low-speed single-stage vane pump is connected to an air cooler.

[0011] Preferably, a room temperature sensor is installed on the side of the oil tank.

[0012] Preferably, the oil pump, heater, room temperature sensor, solenoid valve, and low-speed single-stage vane pump are all electrically connected to an external control system.

[0013] Preferably, an agitator is provided in the middle of the glue tank to agitate the resin contained in the glue tank. A one-way sealed bearing is embedded and fixedly installed in the middle of the glue tank. A fixed shaft is fixedly installed in the middle of the one-way sealed bearing. The bottom end of the fixed shaft extends into a heating chamber opened inside the glue tank. An installation rod is fixedly connected to the bottom end of the fixed shaft. An installation sleeve is installed on the installation rod. A drive blade is fixedly installed on the side wall of the installation sleeve. A rotating shaft is installed at the top of the fixed shaft. A connecting sleeve one is installed at the top of the rotating shaft. Crossbars are symmetrically fixedly connected to both ends of the connecting sleeve one. Connecting sleeve two is installed on the crossbars on both sides. An agitator rod is fixedly connected to the side wall of the connecting sleeve two.

[0014] Preferably, one of the connecting sleeves is threaded to the top of the fixed shaft, and the other connecting sleeve is threaded to the crossbar.

[0015] Preferably, a limiting groove is formed on the side wall of the mounting rod, and a limiting strip is fixedly connected to the inner wall of the mounting sleeve. The limiting strip is adapted to the limiting groove and is inserted into the limiting groove.

[0016] Preferably, an installation groove is provided in the middle of the bottom of the glue tank, and a sealing plate is detachably installed in the installation groove by bolts. A sleeve is fixedly installed in the middle of the top of the sealing plate, and the sleeve is adapted to the installation rod.

[0017] Preferably, a rectangular slot is provided at the center of the top of the fixed shaft, and a plug is fixedly connected to the bottom of the rotating shaft. The plug is adapted to the slot and is inserted into the slot.

[0018] The advantages of this utility model are:

[0019] 1. The mold temperature controller provided by this utility model has a heating temperature adjustment range of +5℃ to 95℃, which is a wider adjustment range and can accurately control the temperature to meet more usage needs. In addition, there is no need to provide a chiller or condenser tower, which reduces the cost of use.

[0020] 2. This utility model, by setting up a stirring component, pushes the drive blade, mounting sleeve and mounting rod to rotate while the heat-conducting medium flows in the inner cavity of the glue tank, thereby driving the fixed shaft to rotate. Then, the fixed shaft drives the rotating shaft, crossbar and stirring rod above to rotate. The stirring rod stirs the resin contained in the glue tank, making it easier to turn the resin, so that the resin is heated more evenly and the heating efficiency is improved. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the principle structure of Example 1;

[0023] Figure 2 This is a schematic diagram of the glue tank structure in Example 1;

[0024] Figure 3 This is a cross-sectional view of Embodiment 1;

[0025] Figure 4 This is a schematic diagram of the stirring component structure in Example 1;

[0026] Figure 5 Example 1 Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0027] In the diagram: 1. Oil tank; 2. Oil pump; 3. Heater; 4. Outlet temperature sensor; 5. Piping; 6. Glue tank; 7. Agitator assembly; 71. One-way sealed bearing; 72. Rotary shaft; 73. Connecting sleeve one; 74. Crossbar; 75. Connecting sleeve two; 76. Agitator rod; 77. Sealing plate; 78. Mounting groove; 79. Sleeve; 710. Mounting sleeve; 711. Drive blade; 712. Limiting strip; 713. Mounting rod; 714. Limiting groove; 715. Fixed shaft; 716. Slot; 717. Insert block; 8. Air cooler; 9. Solenoid valve; 10. Low-speed single-stage vane pump; 11. Tee; 12. Room temperature sensor; 13. Heating chamber. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] Please see Figures 1-5 As shown, an air-cooled precision temperature control mold temperature controller includes an oil tank 1 and a glue tank 6. One outlet of the oil tank 1 is connected to an oil pump 2 via a pipe 5. The output end of the oil pump 2 is connected to a heater 3 via a pipe 5. A tee 11 is installed at the outlet of the heater 3. One end of the tee 11 is connected to the inlet of the glue tank 6 via a pipe 5. An outlet temperature sensor 4 is installed at the outlet of the tee 11. The outlet of the glue tank 6 is connected to the oil tank 1 via a pipe 5.

[0031] The other end of the three-way valve 11 is connected to the solenoid valve 9. The solenoid valve 9 is connected to the inlet of the air cooler 8 through the pipe 5. The outlet of the air cooler 8 is connected to the oil tank 1 through the pipe 5.

[0032] Another outlet of the oil tank 1 is connected to a low-speed single-stage vane pump 10 via a pipeline 5. The low-speed single-stage vane pump 10 is connected to the air cooler 8.

[0033] During operation, the control system controls oil pump 2 to draw the heat transfer medium from oil tank 1 and heats it through heater 3. The control system compares the set temperature value with the temperature detected by room temperature sensor 12. When the set temperature value is higher than the temperature detected by room temperature sensor 12 (this parameter can be adjusted according to the heating capacity of different oil pumps 2):

[0034] Process 1:

[0035] When the outlet temperature sensor 4 detects a temperature lower than the set temperature, the heater 3 starts heating the heat transfer medium. This continues until the outlet temperature sensor 4 detects the same temperature as the set temperature. Driven by the oil pump 2, the heat transfer medium completes one heating cycle through the loop: oil tank 1 → oil pump 2 → heater 3 → tee 11 → pipe 5 → glue tank 6 → pipe 5 → oil tank 1. At this time, the solenoid valve 9 is closed.

[0036] Process 2:

[0037] When the outlet temperature sensor 4 detects a temperature value higher than the set temperature value, the heater 3 shuts off its heating function, and the solenoid valve 9 activates. At this time, the heat transfer medium, driven by the oil pump 2, splits into two paths at the T-junction 11. Because the "T-junction 11 → Solenoid valve 9 → Air cooler 8 → Oil tank 1" circuit is located inside the oil temperature controller and the pipe length of pipe 5 is shorter than that of "T-junction 11 → Pipe 5 → Glue tank 6 → Pipe 5 → Oil tank 1", and the internal resistance of pipe 5 in "T-junction 11 → Solenoid valve 9 → Air cooler 8 → Oil tank 1" is lower than that in "T-junction 11 → Pipe 5 → Glue tank 6 → Pipe 5 → Oil tank 1", most of the heat transfer medium flows through the "T-junction 11 → Solenoid valve 9 → Air cooler 8 → Oil tank 1" circuit. The heat transfer medium undergoes heat exchange and dissipation in the air cooler 8, with heat dissipating into the air. At this time, the heat of the higher-temperature heat transfer medium is transferred, and its temperature decreases. This process is the cooling process of the heat transfer medium. After the heat transfer medium is cooled, it flows back to the oil tank 1 to neutralize the temperature of the heat transfer medium in the oil tank 1, which can reduce the temperature of the heat transfer medium in the oil tank 1 to below the set value. At this time, the recirculated heat transfer medium can repeat process 1.

[0038] When the set temperature value is not higher than 20℃ compared to the temperature value detected by the room temperature sensor 12 (this parameter can be adjusted according to the heat generated by different oil pumps 2):

[0039] Process 3:

[0040] When the outlet temperature sensor 4 detects a temperature lower than the set temperature, the heater 3 starts heating the heat transfer medium. This continues until the outlet temperature sensor 4 detects the same temperature as the set temperature. Driven by the oil pump 2, the heat transfer medium completes one heating cycle through the loop: oil tank 1 → oil pump 2 → heater 3 → tee 11 → pipe 5 → glue tank 6 → pipe 5 → oil tank 1. At this time, the solenoid valve 9 is closed.

[0041] Meanwhile, the control system monitors the temperature value of the outlet temperature sensor 4. When the temperature value of the outlet temperature sensor 4 is greater than the set temperature value of -5℃, the control system starts the low-speed single-stage vane pump 10. The heat transfer medium in the oil tank 1 circulates through the air cooler 8 under the drive of the low-speed single-stage vane pump 10 for forced heat dissipation.

[0042] Process 4:

[0043] When the outlet temperature sensor 4 detects a temperature value higher than the set temperature value, the heater 3 shuts off its heating function, and the solenoid valve 9 activates. At this time, the heat transfer medium, driven by the oil pump 2, splits into two paths at the T-junction 11. Because the "T-junction 11 → Solenoid valve 9 → Air cooler 8 → Oil tank 1" circuit is located inside the oil temperature controller and the pipe length of pipe 5 is shorter than that of "T-junction 11 → Pipe 5 → Glue tank 6 → Pipe 5 → Oil tank 1", and the internal resistance of pipe 5 in "T-junction 11 → Solenoid valve 9 → Air cooler 8 → Oil tank 1" is lower than that in "T-junction 11 → Pipe 5 → Glue tank 6 → Pipe 5 → Oil tank 1", most of the heat transfer medium flows through the "T-junction 11 → Solenoid valve 9 → Air cooler 8 → Oil tank 1" circuit. The heat transfer medium undergoes heat exchange and dissipation in the air cooler 8, with heat dissipating into the air. At this time, the heat of the higher-temperature heat transfer medium is transferred, and its temperature decreases. This process is the cooling process of the heat transfer medium. After the heat transfer medium is cooled, it flows back to the oil tank 1 to neutralize the temperature of the heat transfer medium in the oil tank 1, which can reduce the temperature of the heat transfer medium in the oil tank 1 to below the set value. At this time, the recirculated heat transfer medium can repeat process 3.

[0044] Meanwhile, the control system monitors the temperature value of the outlet temperature sensor 4. When the temperature value of the outlet temperature sensor 4 is greater than the set temperature value of -5℃, the control system starts the low-speed single-stage vane pump 10. The heat transfer medium in the oil tank 1 circulates through the air cooler 8 under the drive of the low-speed single-stage vane pump 10 for forced heat dissipation.

[0045] A room temperature sensor 12 is installed on the side of the oil tank 1; during operation, it is used to detect the room temperature of the equipment's operating environment.

[0046] The oil pump 2, heater 3, room temperature sensor 12, solenoid valve 9, and low-speed single-stage vane pump 10 are all electrically connected to an external control system. During operation, the control system can receive signals from the outlet temperature sensor 4 and control the heater 3 to heat; it can also control the operation of the oil pump 2, the low-speed single-stage vane pump 10, and the on / off state of the solenoid valve 9.

[0047] An agitator 7 is disposed in the middle of the glue tank 6 to agitate the resin contained in the glue tank 6. A one-way sealed bearing 71 is embedded and fixedly installed in the middle of the glue tank 6. A fixed shaft 715 is fixedly installed in the middle of the one-way sealed bearing 71. The bottom end of the fixed shaft 715 extends into the heating chamber 13 opened inside the glue tank 6. An installation rod 713 is fixedly connected to the bottom end of the fixed shaft 715. An installation sleeve 710 is installed on the installation rod 713. A drive blade 711 is fixedly installed on the side wall of the installation sleeve 710. A rotating shaft 72 is installed on the top of the fixed shaft 715. A connecting sleeve 73 is installed on the top end of the rotating shaft 72. A crossbar 74 is symmetrically fixedly connected to both ends of the first sleeve 73. A second connecting sleeve 75 is installed on each of the two crossbars 74. An agitator 76 is fixedly connected to the side wall of the second connecting sleeve 75. During operation, the heat transfer medium flows in from the inlet of the inner cavity of the glue tank 6 and then flows out from the outlet of the glue tank 6. The liquid flow generated during the process drives the drive blade 711, the mounting sleeve 710 and the mounting rod 713 to rotate, which in turn drives the fixed shaft 715 to rotate. Then, the fixed shaft 715 drives the rotating shaft 72, the crossbar 74 and the agitator 76 above to rotate. The agitator 76 stirs the resin inside the glue tank 6, making it easier to turn the resin and making the resin heat more evenly, thus improving the heating efficiency.

[0048] The first connecting sleeve 73 is threaded to the top of the fixed shaft 715, and the second connecting sleeve 75 is threaded to the crossbar 74. During operation, the threaded structure facilitates the disassembly and replacement of the crossbar 74 and the stirring rod.

[0049] A limiting groove 714 is provided on the side wall of the mounting rod 713, and a limiting strip 712 is fixedly connected to the inner wall of the mounting sleeve 710. The limiting strip 712 is adapted to the limiting groove 714 and is inserted into the limiting groove 714. During operation, the limiting strip 712 and the limiting groove 714 cooperate to facilitate the connection between the mounting sleeve 710 and the mounting rod 713, allowing them to rotate synchronously.

[0050] The bottom center of the glue tank 6 has an installation groove 78. A sealing plate 77 is detachably installed in the installation groove 78 by bolts. A sleeve 79 is fixedly installed at the top center of the sealing plate 77. The sleeve 79 is adapted to the mounting rod 713. During operation, the sealing plate 77 is fixedly installed at the bottom of the glue tank 6 by bolts, and the sleeve 79 is fitted onto the bottom of the mounting rod 713. The sleeve 79 abuts against the bottom of the mounting sleeve 710, limiting the range of motion of the sleeve 79 on the mounting rod 713. In addition, when the sealing plate 77 is removed, the drive blade 711 and the sleeve 79 can be directly disassembled, realizing quick disassembly and maintenance of the drive blade 711 and the sleeve 79.

[0051] Example 2

[0052] Please see Figure 5 As shown in the first embodiment, as another implementation of this utility model, a rectangular slot 716 is provided in the middle of the top of the fixed shaft 715, and a plug 717 is fixedly connected to the bottom of the rotating shaft 72. The plug 717 is adapted to the slot 716 and is inserted into the slot 716. During operation, the plug 717 and the slot 716 cooperate to facilitate quick disassembly and assembly of the rotating shaft 72 and to facilitate the removal of the heated resin.

[0053] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A wind-cooled precision temperature control mold temperature controller, characterized in that: Includes an oil tank (1) and a glue tank (6). One outlet of the oil tank (1) is connected to an oil pump (2) via a pipe (5). The output end of the oil pump (2) is connected to a heater (3) via a pipe (5). A tee (11) is installed at the outlet of the heater (3). One end of the tee (11) is connected to the inlet of the glue tank (6) via a pipe (5). An outlet temperature sensor (4) is installed at the outlet of the tee (11). The outlet of the glue tank (6) is connected to the oil tank (1) via a pipe (5). The other end of the tee (11) is connected to the solenoid valve (9), the solenoid valve (9) is connected to the inlet of the air cooler (8) through the pipeline (5), and the outlet of the air cooler (8) is connected to the oil tank (1) through the pipeline (5). Another outlet of the oil tank (1) is connected to a low-speed single-stage vane pump (10) via a pipeline (5), and the low-speed single-stage vane pump (10) is connected to the air cooler (8).

2. The air-cooled precision temperature control mold temperature controller according to claim 1, characterized in that: A room temperature sensor (12) is installed on the side of the oil tank (1).

3. The air-cooled precision temperature control mold temperature controller according to claim 2, characterized in that: The oil pump (2), heater (3), room temperature sensor, solenoid valve (9) and low-speed single-stage vane pump (10) are all electrically connected to the external control system.

4. The air-cooled precision temperature control mold temperature controller according to claim 3, characterized in that: An agitator (7) is provided in the middle of the glue tank (6) to agitate the resin contained in the glue tank (6). A one-way sealed bearing (71) is embedded and fixedly installed in the middle of the glue tank (6). A fixed shaft (715) is fixedly installed in the middle of the one-way sealed bearing (71). The bottom end of the fixed shaft (715) extends into the heating chamber (13) opened inside the glue tank (6). An installation rod (713) is fixedly connected to the bottom end of the fixed shaft (715). An installation sleeve (710) is installed on the rod (713). A drive blade (711) is fixedly installed on the side wall of the installation sleeve (710). A rotating shaft (72) is installed on the top of the fixed shaft (715). A connecting sleeve one (73) is installed on the top of the rotating shaft (72). A crossbar (74) is fixedly connected to both ends of the connecting sleeve one (73). A connecting sleeve two (75) is installed on the crossbar (74) on both sides. An agitator (76) is fixedly connected to the side wall of the connecting sleeve two (75).

5. The air-cooled precision temperature control mold temperature controller according to claim 4, characterized in that: The first connecting sleeve (73) is threaded to the top of the fixed shaft (715), and the second connecting sleeve (75) is threaded to the crossbar (74).

6. The air-cooled precision temperature control mold temperature controller according to claim 5, characterized in that: A limiting groove (714) is provided on the side wall of the mounting rod (713), and a limiting strip (712) is fixedly connected to the inner wall of the mounting sleeve (710). The limiting strip (712) is adapted to the limiting groove (714), and the limiting strip (712) is inserted into the limiting groove (714).

7. A wind-cooled precision temperature control mold temperature controller according to claim 6, characterized in that: The bottom center of the glue tank (6) is provided with an installation groove (78), and a sealing plate (77) is detachably installed in the installation groove (78) by bolts. A sleeve (79) is fixedly installed in the middle of the top of the sealing plate (77), and the sleeve (79) is adapted to the installation rod (713).

8. The air-cooled precision temperature control mold temperature controller according to claim 7, characterized in that: A rectangular slot (716) is provided at the top center of the fixed shaft (715), and a plug (717) is fixedly connected to the bottom end of the rotating shaft (72). The plug (717) is adapted to the slot (716) and is inserted into the slot (716).

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