Heating energy-saving mechanism of injection molding machine
By adopting the design of components such as shunt pipes and air conduit pipes in the injection molding machine, uniform heat transfer and waste heat recycling are achieved, and the problems of uneven heating and energy waste in the prior art are solved, and the energy-saving effect of the injection molding machine is improved.
Patent Information
- Application Number
- CN202323197883.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-27
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2033-11-27
AI Technical Summary
During the heating process of the existing injection molding machine heating devices, the heat transfer is uneven, resulting in uneven temperatures at different locations of the barrel, affecting the uniformity of material heating, and there is a problem of energy waste.
An injection molding machine heating and energy-saving mechanism is designed, using components such as shunt pipe, air conduit pipe, air outlet pipe, air pump, annular air conduit and jet pipe. The hot air conduit is circulated and flows through the air conduit and annular air conduit. To the metal heat conducting sheet, ensure the temperature uniformity of the heat conducting sheet and the heating sheet, and heat the metal heat conducting sheet through the electric heating wire. The heat is transferred to the barrel through the heat conducting column, achieving uniform heat transfer and waste heat recycling.
The uniform heating of temperatures at different locations in the barrel is achieved, which reduces energy consumption, improves the uniformity of material heating, and reduces energy consumption through waste heat recycling.
Smart Images
Figure CN222135861U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molding machine equipment, in particular to a heating energy-saving mechanism for an injection molding machine. Background Art
[0002] During the use of the injection molding machine, the plastic is heated by a heating mechanism, and high pressure is applied to the molten plastic to cause it to be ejected and fill the mold cavity. The injection molding machine barrel uses heating devices such as electric heating coils, and the heat is conducted through the barrel wall to provide a heat source for plasticizing the material.
[0003] For example, the utility model: "A heating and energy-saving device for an injection molding machine", with the announcement number: "CN211138030U", in this patent, after the air in the cooling jacket exchanges heat with the injection port, the heated air enters the waste heat recovery jacket for recycling of waste heat again, which can effectively reduce the energy consumption of heating the injection molding machine. However, in the heating process of this patent, the electric heating wire is installed at a specified position inside the heating jacket, so that the heat cannot be evenly transferred to different positions of the barrel, so that the temperature at different positions of the barrel cannot be kept uniform, and it is not easy to heat the material evenly. Therefore, a new type of heating and energy-saving mechanism for injection molding machines is urgently needed to solve the above problems. Utility Model Content
[0004] The utility model aims to provide a heating energy-saving mechanism for an injection molding machine to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heating energy-saving mechanism for an injection molding machine, comprising a first heat-insulating shell, a second heat-insulating shell and an injection molding machine barrel, the second heat-insulating shell is installed on the outside of the injection molding machine barrel, and the first heat-insulating shell is installed on the outside of the second heat-insulating shell, a metal heat-conducting sheet is installed on the outside of the metal heating sheet, and an electric heating wire is wound around the outside of the metal heat-conducting sheet, a shunt pipe is installed on the top of the second heat-insulating shell, and air guide pipes are evenly installed on the bottom of the shunt pipe, and the air guide pipes all pass through the first heat-insulating shell. Two insulation shells, an air pump is installed at one end of the top of the first insulation shell, and a one-way air inlet valve is installed at the end of the top of the first insulation shell close to the air pump, a first solenoid valve is installed at the end of the top of the first insulation shell away from the air pump, second solenoid valves are installed at both ends of the bottom of the first insulation shell, and a control panel is installed at the end of the first insulation shell away from the air pump, and the output end of the control panel is electrically connected to the first solenoid valve, the air pump, the electric heating wire and the input end of the second solenoid valve through wires.
[0006] Preferably, an air extraction pipe extending to the interior of the first heat-insulating shell is installed at the input end of the air extraction pump, and an air outlet pipe is installed at the output end of the air extraction pump, and one end of the air outlet pipe away from the air extraction pump is connected to the input end of the one-way air inlet valve.
[0007] Preferably, a flow guide tube is installed at the output end of the first solenoid valve, and one end of the flow guide tube away from the first solenoid valve is connected to the shunt tube.
[0008] Preferably, annular air pipes are evenly installed on the inner side of the second heat-insulating shell, the annular air pipes are all connected to the air guide pipe, and jet pipes are evenly installed on the inner side of the annular air pipes.
[0009] Preferably, the output end of the second solenoid valve is equipped with a connecting pipe extending to the interior of the second insulation shell.
[0010] Preferably, a metal heating plate is installed on the inner side of the injection molding machine barrel, and metal heat-conducting columns are evenly installed on the outer side of the metal heating plate. The metal heat-conducting columns all pass through the injection molding machine barrel, and the ends of the metal heat-conducting columns away from the metal heating plate are connected to the metal heat-conducting plate.
[0011] Preferably, an anti-rust layer is provided on the inner side of the metal heating plate.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. The heating energy-saving mechanism of the injection molding machine is equipped with a shunt pipe, an air guide pipe, an air outlet pipe, an air pump, an air suction pipe, an annular air pipe and an air jet pipe. During the heating process, the air pump draws air to make the hot air circulate, and the hot air is diverted to the inside of multiple groups of annular air pipes through the air guide pipe, and is evenly blown to different positions of the metal heat conductive sheet through the air jet pipe on the annular air pipe. The metal heat conductive sheet can be evenly heated by the hot air, so that the temperature at different positions of the metal heat conductive sheet is kept uniform, which is conducive to uniform heating of the material;
[0014] 2. The heating energy-saving mechanism of the injection molding machine is equipped with a metal heating plate, a metal heat-conducting plate and a metal heat-conducting column. When in use, the electric heating wire heats the metal heat-conducting plate, and the metal heat-conducting plate transfers heat to different positions of the metal heating plate through multiple groups of metal heat-conducting columns, which is conducive to keeping the temperature at different positions of the metal heating plate uniform, thereby facilitating uniform heating of the material;
[0015] 3. The heating energy-saving mechanism of the injection molding machine is equipped with a first insulation shell, a second insulation shell, a guide pipe, a first solenoid valve and a one-way air inlet valve. After the heating is completed, the first solenoid valve is closed, and the vacuum pump can draw the hot air inside the second insulation shell into the first insulation shell for storage. When heating again, the hot air inside the first insulation shell can be re-introduced into the second insulation shell, the metal heat conductive sheet can be preheated, and the hot air can be recycled, which is beneficial to reduce heat waste, thereby reducing energy consumption and making the device more energy-efficient. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the front cross-sectional view of the utility model;
[0017] Figure 2 It is a main schematic diagram of the utility model;
[0018] Figure 3 It is a side cross-sectional schematic diagram of the utility model.
[0019] In the figure: 1. first insulation shell; 2. second insulation shell; 3. injection molding machine barrel; 4. metal heating plate; 5. metal heat conductive plate; 6. control panel; 7. flow guide pipe; 8. first solenoid valve; 9. shunt pipe; 10. air guide pipe; 11. air outlet pipe; 12. vacuum pump; 13. vacuum pipe; 14. annular air pipe; 15. jet pipe; 16. electric heating wire; 17. metal heat conductive column; 18. second solenoid valve; 19. connecting pipe; 20. one-way air inlet valve. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1-3 The utility model provides an embodiment: a heating energy-saving mechanism for an injection molding machine, comprising a first heat-insulating shell 1, a second heat-insulating shell 2 and an injection molding machine barrel 3, the second heat-insulating shell 2 is installed on the outer side of the injection molding machine barrel 3, and the first heat-insulating shell 1 is installed on the outer side of the second heat-insulating shell 2, a metal heat-conducting sheet 5 is installed on the outer side of the metal heating sheet 4, and an electric heating wire 16 is wound around the outer side of the metal heat-conducting sheet 5, a shunt pipe 9 is installed on the top of the second heat-insulating shell 2, and an air guide pipe 10 is evenly installed on the bottom of the shunt pipe 9, and the air guide pipe 10 all passes through the second heat-insulating shell 2, and an air pump 12 is installed at one end of the top of the first heat-insulating shell 1, and the model of the air pump 12 here can be VCH1 028, a one-way air inlet valve 20 is installed at one end of the top of the first insulation shell 1 close to the vacuum pump 12, a first solenoid valve 8 is installed at one end of the top of the first insulation shell 1 away from the vacuum pump 12, and the model of the first solenoid valve 8 here can be QDX1.5-16-0.37, and second solenoid valves 18 are installed at both ends of the bottom of the first insulation shell 1, and the model of the second solenoid valve 18 here can be QDX1.5-16-0.37, and a control panel 6 is installed at one end of the first insulation shell 1 away from the vacuum pump 12, and the output end of the control panel 6 is electrically connected to the first solenoid valve 8, the vacuum pump 12, the electric heating wire 16 and the input end of the second solenoid valve 18 through wires.
[0022] In this implementation:
[0023] Furthermore, an exhaust pipe 13 extending to the interior of the first insulation shell 1 is installed at the input end of the exhaust pump 12, and an exhaust pipe 11 is installed at the output end of the exhaust pump 12. The end of the exhaust pipe 11 away from the exhaust pump 12 is connected to the input end of the one-way air inlet valve 20. During the heating process, the exhaust pump 12 exhausts air, which can make the hot air circulate inside the first insulation shell 1 and the second insulation shell 2.
[0024] Furthermore, a guide tube 7 is installed at the output end of the first solenoid valve 8, and the end of the guide tube 7 away from the first solenoid valve 8 is connected to the shunt tube 9. When the first solenoid valve 8 is opened, the hot air inside the first insulation shell 1 can enter the shunt tube 9 through the guide tube 7.
[0025] Furthermore, annular air pipes 14 are evenly installed on the inner side of the second thermal insulation shell 2, and the annular air pipes 14 are all connected to the air guide pipe 10, and injection pipes 15 are evenly installed on the inner side of the annular air pipes 14. The hot air is diverted to the inside of multiple groups of annular air pipes 14 through the air guide pipe 10, and is evenly blown to different positions of the metal thermal conductive plate 5 through the injection pipes 15 on the annular air pipes 14. The metal thermal conductive plate 5 can be evenly heated by the hot air, so that the temperature at different positions of the metal thermal conductive plate 5 remains uniform, which is conducive to uniform heating of the material.
[0026] Furthermore, the output end of the second solenoid valve 18 is equipped with a connecting pipe 19 extending to the inside of the second insulation shell 2. When the second solenoid valve 18 is opened, external cold air can enter the inside of the second insulation shell 2 through the connecting pipe 19 to dissipate heat inside the second insulation shell 2.
[0027] Furthermore, a metal heating plate 4 is installed on the inner side of the injection molding machine barrel 3, and metal heat-conducting columns 17 are evenly installed on the outer side of the metal heating plate 4. The metal heat-conducting columns 17 all pass through the injection molding machine barrel 3, and the ends of the metal heat-conducting columns 17 away from the metal heating plate 4 are all connected to the metal heat-conducting plate 5. The electric heating wire 16 heats the metal heat-conducting plate 5, and the metal heat-conducting plate 5 transfers heat to different positions of the metal heating plate 4 through multiple groups of metal heat-conducting columns 17, which is beneficial to maintaining uniform temperature at different positions of the metal heating plate 4, thereby facilitating uniform heating of the material.
[0028] Furthermore, an anti-rust layer is provided on the inner side of the metal heating plate 4 , which is beneficial to prolonging the service life of the metal heating plate 4 .
[0029] Working principle:
[0030] When in use, the device is connected to a power source, and the staff can start the electric heating wire 16 through the control panel 6, and the electric heating wire 16 heats the metal heat conductive sheet 5, and the metal heat conductive sheet 5 transfers heat to the metal heating sheet 4 through the metal heat conductive column 17, and the material inside the injection molding machine barrel 3 can be heated through the metal heating sheet 4;
[0031] During the heating process, the staff can start the first solenoid valve 8 and the air pump 12 through the control panel 6, and the air pump 12 draws the hot air inside the second insulation shell 2 into the first insulation shell 1, so that the hot air enters the diversion pipe 9 through the guide pipe 7, and the hot air inside the diversion pipe 9 is diverted to the inside of multiple groups of air guide pipes 10, and the hot air is diverted to the inside of multiple groups of annular air pipes 14 through the air guide pipes 10, and is evenly blown to different positions of the metal heat conductive sheet 5 through the air injection pipes 15 on the annular air pipes 14. The metal heat conductive sheet 5 can be evenly heated by the hot air, so that the temperature at different positions of the metal heat conductive sheet 5 is kept uniform, which is conducive to uniform heating of the material;
[0032] After the heating is finished, the staff can first close the first solenoid valve 8 and the electric heating wire 16 through the control panel 6, and then start the vacuum pump 12 through the control panel 6, and the vacuum pump 12 draws the hot air inside the second insulation shell 2 into the first insulation shell 1. At this time, the hot air cannot pass through the first solenoid valve 8 into the guide tube 7, and the hot air can be collected inside the first insulation shell 1;
[0033] The staff then opens the second solenoid valve 18 through the control panel 6, so that the external cold air enters the second heat-insulating shell 2 through the connecting pipe 19, and the heat inside the second heat-insulating shell 2 can be dissipated;
[0034] When heating again, the staff can first open the first solenoid valve 8 and the vacuum pump 12 through the control panel 6, so that the hot air stored in the first insulation shell 1 is blown into the second insulation shell 2 again, and then the staff can close the second solenoid valve 18 through the control panel 6 to seal the inside of the second insulation shell 2, and the metal thermal conductive sheet 5 can be preheated by the stored hot air.
[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A heating energy-saving mechanism for an injection molding machine, comprising a first heat-insulating casing (1), a second heat-insulating casing (2) and an injection molding machine barrel (3), characterized in that: A second heat-insulating shell (2) is installed on the outer side of the injection molding machine barrel (3), and a first heat-insulating shell (1) is installed on the outer side of the second heat-insulating shell (2); a metal heat-conducting sheet (5) is installed on the outer side of the metal heating sheet (4), and an electric heating wire (16) is wound around the outer side of the metal heat-conducting sheet (5); a shunt pipe (9) is installed on the top of the second heat-insulating shell (2), and air guide pipes (10) are evenly installed on the bottom of the shunt pipe (9), and the air guide pipes (10) all pass through the second heat-insulating shell (2); an air pump (12) is installed on one end of the top of the first heat-insulating shell (1), and the first heat-insulating shell (1) is installed on the outer side of the metal heating sheet (4). A one-way air inlet valve (20) is installed at one end of the top of the thermal insulation shell (1) close to the air pump (12); a first solenoid valve (8) is installed at one end of the top of the first thermal insulation shell (1) away from the air pump (12); second solenoid valves (18) are installed at both ends of the bottom of the first thermal insulation shell (1); and a control panel (6) is installed at one end of the first thermal insulation shell (1) away from the air pump (12); the output end of the control panel (6) is electrically connected to the input ends of the first solenoid valve (8), the air pump (12), the electric heating wire (16) and the second solenoid valve (18) respectively through wires.
2. The heating energy-saving mechanism for an injection molding machine according to claim 1, characterized in that: The input end of the air pump (12) is provided with an air extraction pipe (13) extending into the interior of the first heat-insulating casing (1), and the output end of the air pump (12) is provided with an air outlet pipe (11), wherein the end of the air outlet pipe (11) away from the air pump (12) is connected to the input end of the one-way air inlet valve (20).
3. The heating energy-saving mechanism for an injection molding machine according to claim 1, characterized in that: A flow guide tube (7) is installed at the output end of the first solenoid valve (8), and one end of the flow guide tube (7) away from the first solenoid valve (8) is connected to the shunt tube (9).
4. The heating energy-saving mechanism for an injection molding machine according to claim 1, characterized in that: Annular air pipes (14) are evenly installed on the inner side of the second heat-insulating shell (2), the annular air pipes (14) are all connected to the air guide pipe (10), and jet pipes (15) are evenly installed on the inner side of the annular air pipes (14).
5. The heating energy-saving mechanism for an injection molding machine according to claim 1, characterized in that: The output end of the second solenoid valve (18) is equipped with a connecting pipe (19) extending to the interior of the second heat-insulating casing (2).
6. The heating energy-saving mechanism for an injection molding machine according to claim 1, characterized in that: A metal heating plate (4) is installed on the inner side of the injection molding machine barrel (3), and metal heat-conducting columns (17) are evenly installed on the outer side of the metal heating plate (4). The metal heat-conducting columns (17) all pass through the injection molding machine barrel (3), and the ends of the metal heat-conducting columns (17) away from the metal heating plate (4) are connected to the metal heat-conducting plate (5).
7. The heating energy-saving mechanism for an injection molding machine according to claim 6, characterized in that: The inner side of the metal heating plate (4) is provided with an anti-rust layer.