Oven system for mold shaping

Abstract

The oven system for mold shaping comprises an oven, a circulation assembly and an exhaust assembly, and the oven is provided with an inlet end allowing a mold to enter and an outlet end allowing the mold to leave; a first opening is formed in a first position, close to the inlet end, of the oven; a second opening is formed in a second position, close to the outlet end, of the oven; the circulating assembly is arranged between the first opening and the second opening, and is suitable for conveying gas in the oven to the first opening from the second opening and circulating the gas into the oven; the exhaust assembly comprises an exhaust pipe arranged at the top of the oven and is suitable for exhausting hot gas containing the volatile solvent in the oven. According to the structure, the temperature of hot air entering the oven is increased, so that the energy consumption required for heating the air to reach the shaping temperature in the oven is reduced, and meanwhile, the hot air discharged to the outside of the oven and gaseous solvents mixed in the hot air are also reduced.

Description

Technical Field

[0001] The utility model relates to the field of latex product production and processing, and more specifically, to an oven system for mold shaping. Background Art

[0002] During the production process of latex products, after the mold is dipped in the latex liquid, it needs to be baked in an oven at high temperature to solidify the latex liquid and obtain the latex product of the required shape and thickness.

[0003] The existing oven system structure has the following problems:

[0004] 1) The mold covered with glue is in a cold state when it enters the oven. The oven inhales the low-temperature air in the factory. The oven relies entirely on external heat to heat the interior of the oven to the setting temperature. The inhaled low-temperature air needs to be heated to above 100 degrees Celsius for setting, so the energy consumption is very high.

[0005] 2) As the mold moves in a certain direction, a large amount of hot air in the oven will be brought out into the factory. On the one hand, the temperature of the factory will rise to above 50°C. On the other hand, since the hot air carries gaseous solvents, it will cause damage to the health of workers and increase the loss of solvents. Utility Model Content

[0006] In view of this, the present invention proposes an oven system for mold shaping to solve all or part of the above problems.

[0007] According to one embodiment of the present invention, an oven system includes an oven, a circulation component, and an exhaust component. The oven is provided with an inlet end for the mold to enter and an outlet end for the mold to leave; the oven is provided with a first opening at a first position close to the inlet end, and the oven is provided with a second opening at a second position close to the outlet end; the circulation component is provided between the first opening and the second opening, and is suitable for discharging the gas inside the oven from the second opening to the first opening, and circulating it into the interior of the oven; the exhaust component includes an exhaust pipe provided at the top of the oven, which is suitable for discharging the hot air inside the oven.

[0008] Furthermore, the circulation component includes a circulation pipe connected between the first opening and the second opening, and a circulation fan is provided on the circulation pipe near the second opening.

[0009] Furthermore, the circulating fan is a circulating fan with variable frequency control.

[0010] Furthermore, one, two or more circulation pipelines are provided.

[0011] Furthermore, a heat exchanger is provided in the circulation pipeline, and the gas flows through the tube side of the heat exchanger. The exhaust pipe includes a first section and a second section. The first section is connected to the oven and the shell inlet of the heat exchanger, and the second section is connected to the shell outlet of the heat exchanger to discharge the hot air in the oven after passing through the shell of the heat exchanger.

[0012] Furthermore, the heat exchanger is a shell and tube heat exchanger.

[0013] Furthermore, a third opening is provided on the top of the oven, the first section of the exhaust pipe is connected to the third opening, and the third opening is located in the middle of the oven.

[0014] Furthermore, the inner wall of the heat exchanger is treated with nanomaterials.

[0015] Furthermore, a pressure sensor and / or a temperature sensor is provided inside the oven.

[0016] Furthermore, it includes a central controller, which is connected to the circulation fan, the exhaust fan of the exhaust component, the pressure sensor and / or the temperature sensor to control the circulation fan and the exhaust fan of the exhaust component based on the set pressure and the collected values ​​of the pressure sensor and / or the temperature sensor.

[0017] It can be seen that according to an embodiment of the present invention, an oven system for mold shaping is provided, by setting a first opening at a first position near the inlet end, setting a second opening at a second position near the outlet end, and providing a circulation component between the first opening and the second opening, so that the gas at the oven outlet is drawn from the second opening to the first opening and circulated into the interior of the oven, thereby realizing the recycling of the hot air inside the oven, increasing the temperature of the hot air entering the oven, thereby reducing the energy consumption required to heat the gas inside the oven to reach the shaping temperature, and also reducing the hot air discharged to the outside of the oven and the gaseous solvent mixed therein, thereby reducing pollution and solvent loss, and reducing harm to the workers' bodies.

[0018] According to another embodiment of the present invention, a heat exchanger is provided at the position where the circulation pipe of the circulation component passes through, and heat is exchanged with the hot air extracted from the circulation component, so that the hot air discharged to the oven and entering the cooling link is cooled, thereby increasing the temperature of the gas entering the inlet end of the oven, thereby reducing the energy consumption required for heating; and lowering the temperature of the hot air discharged from the exhaust component, thereby reducing the energy consumption of cooling water required for the subsequent circulating water cooler. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that those skilled in the art will have a clearer understanding of the above and other features and advantages of the present invention. In the accompanying drawings:

[0020] Figure 1 The oven system structure of the prior art;

[0021] Figure 2 Schematic diagram of the structure of an oven system according to one embodiment of the present invention;

[0022] Figure 3 2 is a schematic structural diagram of an oven system according to another embodiment of the present invention.

[0023] The accompanying drawings are numerals as follows:

[0024] 1 oven 10 inlet end 20 outlet end

[0025] 30 Exhaust pipe 31 First section of exhaust pipe 33 Second section of exhaust pipe

[0026] 51 circulation pipe 53 circulation fan 60 heat exchanger

[0027] 100 molds 200 cooling towers 300 coolers

[0028] 400 solvent recovery device 500 heating component DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the following embodiments.

[0030] Figure 1 Schematic diagram of the structure of the oven system in the prior art; Figure 1 As shown, the oven system includes an oven 1, a heating assembly 500, and an exhaust assembly. The oven 1 is made of a high-temperature resistant material and has an inlet end 10 for the mold 100 to enter and an outlet end 20 for the mold 100 to exit. The mold 100 is a dairy mold, which is soaked with latex to be dried and is moved by a chain structure (not shown) passing through the inlet end 10 and the outlet end 20. The heating assembly 500 is composed of, for example, a heat-conducting oil circulation heating pipe arranged at the bottom of the oven 1. The hot oil flowing into the pipe at the bottom heats the gas inside the oven 1, thereby shaping the mold 100. The top of the oven 1 is also provided with an exhaust assembly, which includes an exhaust pipe 30 for exhausting the gas inside the oven 1 to reduce the concentration of volatile solvents in the oven. The exhaust assembly is also connected to a cooling assembly (such as a cooling tower 200 and a cooler 300) so that the hot gas discharged through the exhaust assembly is cooled by the cooling assembly. The solvent carried in the gas is then recovered using a solvent recovery device 400.

[0031] In the oven system structure of the prior art, the air inhaled by the oven 1 is cold air from inside the factory (for example, 50 degrees). This cold air is completely heated by the heating component 500 to reach the setting temperature (for example, 120 degrees to 180 degrees), which requires a temperature increase of more than 100 degrees. Therefore, a large amount of energy is consumed; in addition, a large amount of hot gas mixed with solvent is discharged from the outlet end 20 along with the mold 100 to the outside of the oven 1 and enters the factory, causing the factory temperature to rise and being detrimental to the health of the workers.

[0032] The utility model is a novel oven system designed based on the above problems.

[0033] Figure 2 Schematic diagram of a novel oven system structure according to one embodiment of the present invention;

[0034] like Figure 2 As shown, the oven system includes an oven 1, a heating component 500, and an exhaust component. It should be noted that the heating component 500 is not strictly required to be set at the bottom of the oven 1, and the exhaust component is not strictly required to be set at the top of the oven. Those skilled in the art can set them as needed.

[0035] The oven system further includes a circulation component, which is disposed between the first opening and the second opening and adapted to discharge the gas inside the oven 1 from the second opening to the first opening and circulate the gas into the oven 1 .

[0036] In one implementation, the circulation assembly includes a circulation duct 51 connected between the first opening and the second opening, and a circulation fan 53 is provided near the second opening of the circulation duct 51. The circulation fan 53 is adapted to extract the gas inside the oven 1.

[0037] By setting up a circulation fan 53, the hot air at the tail end of the oven 1 is extracted, flows along the circulation pipe 51 to the first opening of the oven 1, and enters the oven 1 again, thereby realizing the recycling of the hot air in the oven 1, increasing the air temperature at the inlet, and thus reducing energy consumption.

[0038] In one implementation, the circulating fan 53 is a variable frequency controlled circulating fan 53. In this way, it can be adjusted in real time according to parameters such as the current temperature of the gas in the oven 1 and the temperature to be reached.

[0039] In one implementation, one, two or more circulation pipes 51 can be provided as needed, so as to enhance the circulation speed and effect.

[0040] In one embodiment, a heat exchanger 60 is further provided in the circulation conduit 51. Gas flows through the tube side of the heat exchanger 60. The exhaust pipe 30 includes a first section 31 and a second section 33. The first section 31 is connected to the oven 1 and the shell inlet of the heat exchanger 60. The second section 33 is connected to the shell outlet of the heat exchanger 60 to discharge the hot gas in the oven 1 after passing through the shell of the heat exchanger 60. Preferably, the heat exchanger 60 is a shell-and-tube heat exchanger. The heat exchanger 60 includes a tube side and a shell side. The circulation conduit 51 connects the tube side outlet and inlet of the heat exchanger 60, exchanging heat with the high-temperature gas drawn from the top of the oven 1 through the tube wall.

[0041] In this way, while the gas circulated and extracted by the circulation component is heated, the gas discharged by the exhaust component is cooled, thereby reducing the consumption of cooling components such as cooling water and further reducing energy consumption.

[0042] Preferably, a third opening is provided on the top of the oven 1 , the first section of the exhaust pipe is connected to the third opening, and the third opening is located in the middle of the oven 1 .

[0043] As mentioned above, in an industrial environment, the length of oven 1 may be relatively long. Generally, the gas temperature in the middle of oven 1 is the highest, for example, it can reach 180 degrees, while the temperature near the outlet end 20 of oven 1 is slightly lower, for example, 90 degrees. Therefore, the heat exchanger is set in the middle of oven 1, and the internal gas in the middle of oven 1 is extracted as high-temperature gas in heat exchanger 60, thereby heating the relatively low-temperature gas in the circulation pipe 51, and at the same time the temperature of the oven itself is also reduced.

[0044] In one implementation, the inner wall of the heat exchanger is treated with nanomaterials to prevent the adhesion of colloidal particles.

[0045] In one implementation, a pressure sensor and / or a temperature sensor is provided inside the oven 1. By providing one or more pressure sensors and temperature sensors, the temperature and air pressure inside the oven 1 can be acquired in real time.

[0046] In one implementation, a central controller is included, which is connected to the circulation fan 53, the exhaust fan of the exhaust component, the pressure sensor and / or the temperature sensor to control the circulation fan 53 and the exhaust fan of the exhaust component based on the set pressure, the collected values ​​of the pressure sensor and / or the temperature sensor.

[0047] Based on this embodiment, a comprehensive and automatically adjustable oven system is realized, which enables more precise control and achieves the optimal operation of the oven.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An oven system for shaping a mold (100), wherein the mold (100) is a latex product mold impregnated with latex to be dried, characterized in that: include: An oven (1), wherein the oven (1) is provided with an inlet end (10) for the mold (100) to enter and an outlet end (20) for the mold (100) to exit; the oven (1) is provided with a first opening at a first position close to the inlet end (10), and the oven (1) is provided with a second opening at a second position close to the outlet end (20); a circulation component, the circulation component being arranged between the first opening and the second opening and being adapted to convey the gas inside the oven (1) from the second opening to the first opening and into the interior of the oven (1); An exhaust assembly comprises an exhaust pipe (30) arranged on the top of the oven (1) and suitable for extracting hot air from the interior of the oven (1).

2. The oven system for shaping the mold (100) according to claim 1, characterized in that: The circulation component comprises a circulation pipe (51) connected between the first opening and the second opening, and a circulation fan (53) is provided on the circulation pipe (51) at a position close to the second opening.

3. The oven system for shaping the mold (100) according to claim 2, characterized in that: The circulating fan (53) is a circulating fan (53) that can be controlled by variable frequency.

4. The oven system for shaping the mold (100) according to claim 2, characterized in that: One, two or more circulation pipes (51) are provided.

5. The oven system for shaping a mold (100) according to any one of claims 1 to 4, characterized in that: A heat exchanger (60) is also provided in the circulation pipe (51), and gas flows through the pipe side of the heat exchanger (60). The exhaust pipe (30) includes a first section (31) and a second section (33), wherein the first section (31) is connected to the oven (1) and the shell inlet of the heat exchanger (60), and the second section (33) is connected to the shell outlet of the heat exchanger (60) to discharge the hot gas in the oven (1) after passing through the shell of the heat exchanger (60).

6. The oven system for shaping the mold (100) according to claim 5, characterized in that: The heat exchanger (60) is a shell-and-tube heat exchanger.

7. The oven system for shaping the mold (100) according to claim 5, characterized in that: A third opening is provided on the top of the oven (1), the first section (31) of the exhaust pipe (30) is connected to the third opening, and the third opening is located in the middle of the oven (1).

8. The oven system for shaping the mold (100) according to claim 5, characterized in that: The inner wall of the heat exchanger (60) is treated with nanomaterials.

9. The oven system for shaping the mold (100) according to claim 5, characterized in that: A pressure sensor and / or a temperature sensor is arranged inside the oven (1).

10. The oven system for shaping the mold (100) according to claim 9, characterized in that: The central controller comprises a central controller connected to the circulation fan (53), the exhaust fan of the exhaust component, the pressure sensor and / or the temperature sensor, so as to control the circulation fan (53) and the exhaust fan of the exhaust component based on the set pressure and the collected values ​​of the pressure sensor and / or the temperature sensor.

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