A gas mold temperature controller with constant temperature function

Abstract

This utility model discloses a gas-fired mold temperature controller with constant temperature function, relating to the field of mold temperature controller technology. It includes: a mold temperature controller housing; a heat dissipation mechanism on the inner wall of a hot oil chamber; a heat dissipation pipe; a solenoid valve installed on the inner wall of the heat dissipation pipe; a shielding and protective pipe at the top of the heat dissipation pipe; a heat insulation layer installed on the inner wall of the shielding and protective pipe; a cooling column at the top of the shielding and protective pipe; and a cooling pump installed at the top of the mold temperature controller housing. This utility model, through the installation of the heat dissipation mechanism, firstly, after the hot oil in the hot oil chamber is discharged, the solenoid valve operates to allow air circulation inside the heat dissipation pipe, thus exchanging hot air inside the hot oil chamber through the heat dissipation pipe. Subsequently, the shielding and protective pipe shields the discharged hot air, and the heat insulation layer provides insulation. Then, the cooling pump operates to add external cooling water to the cooling column through a first flexible hose, thereby cooling the passing hot air.

Description

Technical Field

[0001] This utility model relates to the field of mold temperature controller technology, specifically a gas-fired mold temperature controller with constant temperature function. Background Technology

[0002] A gas-fired mold temperature controller is a device that uses gas as a heat source to heat and control the temperature of molds or fluids. The working principle of a gas-fired mold temperature controller is mainly based on the heat energy generated by the combustion of gas. Through a specific system, it achieves temperature control of the mold or fluid. By controlling the temperature of the mold using the heat energy generated by the combustion of gas, it can provide precise temperature control under high-temperature conditions, meeting the molding requirements of complex plastic parts. Gas-fired mold temperature controllers are widely used in the textile, papermaking, printing, and wood industries. In textile printing and dyeing, they are used for heat setting, drying, baking, and other processes. In papermaking and printing, they are used for hot melting, corrugated board processing, paper drying, and other processes. In wood / furniture, they are used for hot pressing, drying, and other processes.

[0003] Patent document CN219769037U discloses a gas-fired intelligent mold temperature controller, which includes a mold temperature controller housing, an oil tank on the top of the housing, an oil inlet pipe fixedly connected to the bottom of the oil tank, and a heating cylinder and an oil pump inside the housing. This invention has the following advantages and effects: after the heated heat transfer oil is recovered through the oil outlet pipe, the hot oil will circulate back through the return oil pipe, passing through the interior of the cooling tank where it is cooled by the circulating cooling water. After the initially cooled heat transfer oil is pumped into the return pipe, the return oil cylinder protects its exterior, reducing the rate of temperature change and ensuring safer recovery. Furthermore, when needed, the oil tank and the oil inlet pipe can work together to replenish the heating cylinder with heat transfer oil, preventing insufficient oil from affecting the efficiency of constant temperature operation.

[0004] However, the aforementioned published document on a gas-fired intelligent mold temperature controller mainly considers preventing insufficient oil volume from affecting the efficiency of constant temperature operation and the problem of not being able to quickly dissipate the residual heat inside the hot oil chamber.

[0005] In view of this, it is necessary to develop a heat dissipation mechanism that can quickly dissipate the residual heat inside the hot oil cavity. Summary of the Invention

[0006] The purpose of this utility model is to provide a gas mold temperature controller with constant temperature function to solve the technical problem of reducing the internal temperature difference of a gas mold temperature controller with constant temperature function mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a gas-fired mold temperature controller with constant temperature function, comprising: a mold temperature controller housing, and a heat dissipation mechanism provided on the inner wall of the hot oil chamber, wherein the heat dissipation mechanism is used to quickly dissipate the residual heat inside the hot oil chamber;

[0008] The heat dissipation mechanism includes a heat dissipation pipe located at the top of the mold temperature controller housing, with one end extending into the interior of the hot oil chamber. A solenoid valve is installed on the inner wall of the heat dissipation pipe. A shielding protection pipe is provided at the top of the heat dissipation pipe, with a heat insulation layer installed on the inner wall of the shielding protection pipe. A cooling column is provided at the top of the mold temperature controller housing. A cooling pump is installed at the top of the mold temperature controller housing, with a connecting flange installed at the inlet end of the cooling pump. A first flexible hose is installed at the outlet end of the cooling pump, with one end extending into the interior of the cooling column. A second flexible hose is provided on the outer wall of the cooling column, with one end extending into the interior of the cooling column. A water collection frame is provided at the top of the mold temperature controller housing.

[0009] Preferably, a control panel is installed on the front of the mold temperature controller housing, an oil supply pump is installed on the top of the mold temperature controller housing, a flange pipe is installed on the top of the mold temperature controller housing, and an alarm is installed on the top of the mold temperature controller housing, with the alarm located on one side of the flange pipe.

[0010] Preferably, a combustion chamber is installed on the inner wall of the mold temperature controller housing, a hot oil chamber is fixedly installed on the inner wall of the combustion chamber, an oil supply pipe is installed on the outer wall of the hot oil chamber, the oil supply pipe is made of stainless steel, a return oil pump is installed on the inner wall of the mold temperature controller housing, a cooling box is installed on the inner wall of the mold temperature controller housing, and a temperature sensor is installed on the inner wall of the hot oil chamber.

[0011] Preferably, the outer wall of the heat-dissipating tube is provided with a disassembly mechanism, which is used to disassemble and replace the shielding and protective tube.

[0012] Preferably, the disassembly mechanism includes an annular frame, the annular frame is mounted around the outer wall of the heat-dissipating tube, the outer wall of the shielding and protective tube is provided with a disassembly screw groove, the outer wall of the annular frame is equipped with a disassembly screw, and one end of the disassembly screw extends into the interior of the disassembly screw groove.

[0013] Preferably, a first magnet ring is installed on the top of the shielding and protective tube, and a filter screen is installed on the inner wall of the first magnet ring.

[0014] Preferably, a second magnet ring is installed at the bottom of the cooling column.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model utilizes a heat dissipation mechanism to rapidly dissipate residual heat from the hot oil chamber. Existing heating methods have a fixed temperature, but the hot oil chamber struggles to quickly return to its normal value after a single heating cycle. Furthermore, during subsequent intermittent use, a significant temperature error occurs (the temperature is slightly higher than the previous cycle). Therefore, it is necessary to dissipate the heat from the hot oil chamber after each use. First, after the hot oil in the hot oil chamber is discharged, the solenoid valve activates, allowing air to circulate within the heat dissipation pipe. This facilitates the exchange of heat from the hot oil chamber through the heat dissipation pipe. A shielding and protective pipe then shields the discharged heat, and an insulation layer provides insulation. A cooling pump connects to an external cooling water source via a connecting flange, and the water is then introduced into the cooling column through a first hose. The cooling column cools the passing hot air, while a second hose allows the cooling water to circulate within the cooling column, rapidly absorbing the heat from the hot air. The circulated cooling water is collected through a water collection frame, thus dissipating the heat from the hot oil chamber and preventing a significant increase in temperature difference after multiple heating cycles due to residual heat.

[0017] 2. This utility model features a disassembly mechanism for disassembling and replacing the protective shield. Over time, the protective shield may wear out or become damaged, requiring replacement. To replace it, the disassembly screw is removed from the disassembly screw groove, and then the cooling column is pulled to remove the second magnet ring from the first magnet ring. Since the filter screen is used to filter impurities in the exhaust hot air, the protective shield can be disassembled by pulling it. When installing a new protective shield, the bottom of the protective shield is placed on top of the ring frame, the disassembly screw is fixed into the disassembly screw groove, and the first and second magnet rings adhere to each other, thus completing the installation of the protective shield. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a front structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the heat dissipation tube part of this utility model;

[0021] Figure 4 This is a schematic diagram of the shielding and protective tube part of this utility model.

[0022] In the diagram: 1. Mold temperature controller housing; 2. Control panel; 3. Oil supply pump; 4. Flange pipe; 5. Alarm; 6. Combustion chamber; 7. Hot oil chamber; 8. Oil supply pipe; 9. Return oil pump; 10. Cooling tank; 11. Temperature sensor; 12. Heat dissipation pipe; 13. Solenoid valve; 14. Shielding protection pipe; 15. Insulation layer; 16. Cooling column; 17. Cooling pump; 18. Connecting flange; 19. First hose; 20. Second hose; 21. Water collection frame; 22. Ring frame; 23. Removal screw groove; 24. Removal screw; 25. First magnet ring; 26. Filter screen; 27. Second magnet ring. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Please see Figure 1 and Figure 2A gas-fired mold temperature controller with constant temperature function includes: a mold temperature controller housing 1; a control panel 2 mounted on the front of the mold temperature controller housing 1; an oil supply pump 3 mounted on the top of the mold temperature controller housing 1; a flange pipe 4 mounted on the top of the mold temperature controller housing 1; an alarm 5 mounted on the top of the mold temperature controller housing 1, with the alarm 5 located on one side of the flange pipe 4; a combustion chamber 6 mounted on the inner wall of the mold temperature controller housing 1; a hot oil chamber 7 fixedly mounted on the inner wall of the combustion chamber 6; an oil supply pipe 8 made of stainless steel mounted on the outer wall of the hot oil chamber 7; a return oil pump 9 mounted on the inner wall of the mold temperature controller housing 1; a cooling box 10 mounted on the inner wall of the mold temperature controller housing 1; a temperature sensor 11 mounted on the inner wall of the hot oil chamber 7; and multiple sets of cooling pipes fixedly mounted on the inner wall of the cooling box 10. Flange pipe 4 is used to connect to external gas supply equipment, so that gas enters combustion chamber 6, and the gas delivery is a fixed amount each time. Oil supply pump 3 is used to supply oil (heat transfer medium, such as heat transfer oil) to hot oil chamber 7, and the oil supply amount is also a fixed value. Combustion chamber 6 heats the medium in hot oil chamber 7, and the heating temperature is a fixed value, so that the mold temperature controller has a constant temperature function. Then, through oil supply pipe 8, the equipment (such as wood industry (plywood hot pressing), textile industry (fabric drying) and paper industry (paperboard drying) are heated. After completion, the medium needs to be recovered. The medium is recovered through return oil pump 9 and cooled through cooling pipe in cooling box 10, and then returned to hot oil chamber 7, thus completing the work.

[0027] Please see Figure 2 and Figure 3The inner wall of the hot oil chamber 7 is equipped with a heat dissipation mechanism for rapidly dissipating residual heat inside the hot oil chamber 7. The heat dissipation mechanism includes a heat dissipation pipe 12, which is located at the top of the mold temperature controller housing 1, with one end extending into the interior of the hot oil chamber 7. A solenoid valve 13 is installed on the inner wall of the heat dissipation pipe 12. A shielding and protection pipe 14 is provided at the top of the heat dissipation pipe 12, and a heat insulation layer 15 is installed on the inner wall of the shielding and protection pipe 14. A cooling column 16 is provided at the top of the shielding and protection pipe 14. A cooling pump 17 is installed at the top of the mold temperature controller housing 1. A connecting flange 18 is installed at the water inlet end of the cooling pump 17, and a first hose 19 is installed at the water outlet end of the cooling pump 17, with one end of the first hose 19 extending into the interior of the cooling column 16. A second hose 20 is provided on the outer wall of the cooling column 16, with one end of the second hose 20 extending into the interior of the cooling column 16. A water collection frame 21 is provided on the top of the mold temperature controller housing 1. The heat dissipation pipe 12, the shielding protection pipe 14, and the cooling column 16 are all cylindrical pipes made of stainless steel. The shielding protection pipe 14 is made of aluminum alloy. The heat insulation layer 15 is made of ceramic fiber material, and the cooling column 16 is carbonized. Silicon material, with its existing fixed heating temperature, suffers from difficulty in quickly returning to normal temperature after a single heating cycle in the hot oil chamber 7. Furthermore, during subsequent intermittent use, this leads to significant temperature errors (slightly higher than the previous temperature). Therefore, it is necessary to dissipate the heat from the hot oil chamber 7 after each use. First, after the hot oil in the hot oil chamber 7 is discharged, the solenoid valve 13 activates, allowing air to circulate inside the heat dissipation pipe 12. The heat dissipation pipe 12 then facilitates the exchange of heat from the hot oil chamber 7. Subsequently, the shielding and protective pipe 14 is used to shield the dissipated heat. The heat layer 15 is used for heat insulation. Then, the cooling pump 17 works to connect the external cooling water source through the connecting flange 18, and then adds it to the cooling column 16 through the first hose 19. The cooling column 16 cools down the passing hot air. At the same time, the second hose 20 is used to allow the cooling water in the cooling column 16 to circulate, so as to quickly absorb the temperature of the hot air. The circulated cooling water is collected through the water collection frame 21, thereby dissipating the heat inside the hot oil chamber 7 and avoiding the situation where the temperature difference increases after multiple heating due to residual heat.

[0028] Please see Figure 3 and Figure 4The outer wall of the heat dissipation pipe 12 is provided with a disassembly mechanism for disassembling and replacing the shielding protection pipe 14. The disassembly mechanism includes an annular frame 22, which is installed around the outer wall of the heat dissipation pipe 12. The outer wall of the shielding protection pipe 14 is provided with a disassembly screw groove 23. A disassembly screw 24 is installed on the outer wall of the annular frame 22, and one end of the disassembly screw 24 extends into the interior of the disassembly screw groove 23. A first magnet ring 25 is installed on the top of the shielding protection pipe 14, and a filter screen 26 is installed on the inner wall of the first magnet ring 25. A second magnet ring 27 is installed on the bottom of the cooling column 16. The annular frame 22 is a hollow cylindrical frame. The disassembly screw 24 and the disassembly screw groove 23 are matched, and two sets of disassembly screw grooves 23 are provided. The filter screen 26 is made of PTFE filter material with a pore size of 10. 0μm (140 mesh), the first magnet ring 25 and the second magnet ring 27 are both hollow cylindrical magnets and are matched. The shielding protection tube 14 will wear or be damaged after long-term use and needs to be replaced. Then, remove the disassembly screw 24 from the disassembly screw groove 23, and then pull the cooling column 16 to remove the second magnet ring 27 from the first magnet ring 25. The filter screen 26 is used to filter impurities in the exhaust hot air. At this time, the shielding protection tube 14 can be disassembled by pulling it. When installing a new shielding protection tube 14, put the bottom of the shielding protection tube 14 on the top of the ring frame 22, fix the disassembly screw 24 into the disassembly screw groove 23, and the first magnet ring 25 and the second magnet ring 27 will be attracted to each other, thus completing the installation of the shielding protection tube 14.

[0029] Working principle: Multiple sets of cooling pipes are fixedly installed on the inner wall of the cooling box 10. First, the flange pipe 4 is used to connect to the external gas supply equipment, so the gas enters the combustion chamber 6, and the gas delivery is a fixed amount each time. The oil supply pump 3 is used to supply oil (heat transfer medium, such as heat transfer oil) to the hot oil chamber 7, and the oil supply amount is also a fixed value. The combustion chamber 6 heats the medium in the hot oil chamber 7, and the heating temperature is a fixed value, so that the mold temperature controller has a constant temperature function. Then, the oil supply pipe 8 is used to heat equipment (such as wood industry (plywood hot pressing), textile industry (fabric drying) and paper industry (paperboard drying), etc.). After completion, the medium needs to be heated. For recycling, the medium is recovered by the return oil pump 9 and cooled by the cooling pipe in the cooling tank 10 before being returned to the hot oil chamber 7 to complete the work. The existing heating temperature is fixed, but it is difficult for the hot oil chamber 7 to quickly return to the normal value after one heating. When used a second time with intermittent use, it will cause a large temperature error (the temperature will be slightly higher than the previous time). Therefore, it is necessary to dissipate the hot air inside the hot oil chamber 7 after a single use. First, after the hot oil in the hot oil chamber 7 is discharged, the solenoid valve 13 is activated to allow air to circulate inside the heat dissipation pipe 12. Then, the hot air inside the hot oil chamber 7 is discharged and exchanged through the heat dissipation pipe 12. Subsequently, the shielding and protective pipe 14 is used to shield the hot air during discharge, and the heat insulation layer 15 is used for heat insulation. Then, the cooling pump 17 operates to connect the external cooling water source through the connecting flange 18, and then adds it to the cooling column 16 through the first hose 19. The cooling column 16 cools the passing hot air, while the second hose 20 is used to allow the cooling water in the cooling column 16 to circulate, so as to quickly absorb the temperature of the hot air. The circulated cooling water is collected through the water collection frame 21, thereby dissipating the heat inside the hot oil chamber 7 and avoiding the situation where the temperature difference increases after repeated heating due to residual heat. If the protective tube 14 is worn or damaged after prolonged use and needs to be replaced, remove the disassembly screw 24 from the disassembly screw groove 23, then pull the cooling column 16 to remove the second magnet ring 27 from the first magnet ring 25. The filter screen 26 is used to filter impurities in the exhaust hot air. At this time, the shielding protective tube 14 can be disassembled by pulling it. When installing a new shielding protective tube 14, put the bottom of the shielding protective tube 14 on the top of the ring frame 22, fix the disassembly screw 24 into the disassembly screw groove 23, and the first magnet ring 25 and the second magnet ring 27 will attract each other, thus completing the installation of the shielding protective tube 14.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A gas-fired mold temperature controller with constant temperature function, characterized in that, Includes: mold temperature controller housing (1), and a heat dissipation mechanism provided on the inner wall of the hot oil chamber (7), the heat dissipation mechanism being used to quickly dissipate the residual heat inside the hot oil chamber (7); The heat dissipation mechanism includes a heat dissipation pipe (12), which is located at the top of the mold temperature controller housing (1), and one end of the heat dissipation pipe (12) extends into the interior of the hot oil chamber (7). A solenoid valve (13) is installed on the inner wall of the heat dissipation pipe (12). A shielding protection pipe (14) is provided at the top of the heat dissipation pipe (12). A heat insulation layer (15) is installed on the inner wall of the shielding protection pipe (14). A cooling column (16) is provided at the top of the shielding protection pipe (14). The mold temperature controller housing (1) A cooling pump (17) is installed on the top of the mold temperature controller housing (1). A connecting flange (18) is installed at the water inlet of the cooling pump (17). A first hose (19) is installed at the water outlet of the cooling pump (17), and one end of the first hose (19) extends into the interior of the cooling column (16). A second hose (20) is provided on the outer wall of the cooling column (16), and one end of the second hose (20) extends into the interior of the cooling column (16). A water collection frame (21) is provided on the top of the mold temperature controller housing (1).

2. A gas mold temperature controller with constant temperature function according to claim 1, characterized in that: A control panel (2) is installed on the front of the mold temperature controller housing (1), an oil pump (3) is installed on the top of the mold temperature controller housing (1), a flange pipe (4) is installed on the top of the mold temperature controller housing (1), and an alarm (5) is installed on the top of the mold temperature controller housing (1), with the alarm (5) located on one side of the flange pipe (4).

3. A gas mold temperature controller with constant temperature function according to claim 1, characterized in that: The inner wall of the mold temperature controller housing (1) is equipped with a combustion chamber (6), the inner wall of the combustion chamber (6) is fixedly equipped with a hot oil chamber (7), the outer wall of the hot oil chamber (7) is equipped with an oil supply pipe (8), the oil supply pipe (8) is made of stainless steel, the inner wall of the mold temperature controller housing (1) is equipped with a return oil pump (9), the inner wall of the mold temperature controller housing (1) is equipped with a cooling box (10), and the inner wall of the hot oil chamber (7) is equipped with a temperature sensor (11).

4. A gas mold temperature controller with constant temperature function according to claim 1, characterized in that: The outer wall of the heat-dissipating tube (12) is provided with a disassembly mechanism, which is used to disassemble and replace the shielding protection tube (14).

5. A gas mold temperature controller with constant temperature function according to claim 4, characterized in that: The disassembly mechanism includes an annular frame (22), the outer wall of the heat dissipation tube (12) is surrounded by the annular frame (22), the outer wall of the shielding protection tube (14) is provided with a disassembly screw groove (23), the outer wall of the annular frame (22) is provided with a disassembly screw (24), and one end of the disassembly screw (24) extends into the interior of the disassembly screw groove (23).

6. A gas mold temperature controller with constant temperature function according to claim 1, characterized in that: The top of the shielding and protective tube (14) is equipped with a first magnet ring (25), and the inner wall of the first magnet ring (25) is equipped with a filter screen (26).

7. A gas mold temperature controller with constant temperature function according to claim 6, characterized in that: A second magnet ring (27) is installed at the bottom of the cooling column (16).

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