An oven with a vacuum extraction device

Abstract

The utility model discloses an oven with vacuumizing device, it includes oven main body, this oven main body includes box body shell, the inside of this box body shell is equipped with inner chamber baking chamber, the inside installation of this inner chamber baking chamber has baking tray subassembly, the back of box body shell is installed with vacuumizing device, the rear end of baking tray subassembly is installed with vacuum joint, the first vacuum pipeline is connected between vacuum joint and baking tray subassembly, the second vacuum pipeline is connected between vacuum joint and vacuumizing device. The oven of the utility model can realize the function of vacuumizing in the process of transfer printing, and the air in the inner chamber baking chamber is extracted to form a low pressure or vacuum environment, so that the silica gel sheet in the tray can tightly adhere to the surface of the workpiece under the action of atmospheric pressure, realizing the wrapping and pressurizing of the special-shaped workpiece, thereby improving the adhesion and pattern consistency of the thermal sublimation or film transfer printing, and improving the transfer printing quality.

Description

Technical Field

[0001] This utility model belongs to the field of oven technology, specifically relating to an oven with a vacuum device for use in the field of heat transfer printing. Background Technology

[0002] An oven is a widely used device in heat transfer printing and related processing fields. Its main function is to heat the workpiece to be transferred through heating components, thereby transferring the pattern onto the workpiece surface. Traditional ovens used for transfer printing typically consist of an outer shell, an inner cavity, a tray assembly, and a heating component. The inner cavity is a closed or semi-closed structure, and the workpiece to be transferred is directly heated and pressure-treated under normal atmospheric pressure.

[0003] In traditional transfer printing processes, air cannot be expelled from the tray or a low-pressure environment can be created, and the transfer process relies entirely on the direct action of pressure and heat. Due to the air gap between the tray and the workpiece, the contact surface of irregularly shaped or three-dimensional workpieces cannot be subjected to completely uniform force, resulting in incomplete transfer patterns, poor local transfer effects, or weak transfer.

[0004] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0005] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide an oven with a vacuum device to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an oven with a vacuum device, comprising an oven body, the oven body including a shell, an inner baking chamber inside the shell, a baking tray assembly installed inside the inner baking chamber, a vacuum device installed on the back of the shell, a vacuum connector installed at the rear end of the baking tray assembly, a first vacuum pipe connected between the vacuum connector and the baking tray assembly, and a second vacuum pipe connected between the vacuum connector and the vacuum device.

[0007] Furthermore, a device housing is installed on the back of the outer casing of the box, which covers the outside of the vacuum device.

[0008] Furthermore, the lower end of the device housing is provided with several air inlets, and the upper end of the device housing is provided with several air outlets. The air outlets and the air inlets form an airflow channel that runs vertically through the device.

[0009] Furthermore, a plurality of the air inlet openings are sequentially spaced apart at the lower end of the device housing, and a plurality of the air outlet openings are sequentially spaced apart at the upper end of the device housing.

[0010] Furthermore, the vacuuming device is disposed in the housing of the device. A plurality of first fixing holes are evenly provided on the side of the vacuuming device, and a plurality of second fixing holes are evenly provided on the surface of the housing of the device. The plurality of second fixing holes correspond one-to-one with the plurality of first fixing holes, and are connected and fixed by fasteners passing through the second fixing holes and the first fixing holes.

[0011] Furthermore, the back of the housing is provided with a number of first housing perforations, and the edge of the housing is provided with a number of second housing perforations. The number of second housing perforations corresponds one-to-one with the number of first housing perforations, and they are connected and fixed by fasteners passing through the second housing perforations and the first housing perforations.

[0012] Furthermore, the rear end of the baking pan assembly is provided with a connector mounting position, and the front end of the vacuum connector is provided with a connector mounting part. The connector mounting part is correspondingly disposed on the connector mounting position and is connected and fixed to the connector mounting position by fasteners passing through the connector mounting part.

[0013] The back of the housing has a connector opening in the middle, and the front end of the vacuum connector extends out through the connector opening.

[0014] The present invention has the following advantages: The oven of the present invention can achieve a vacuum function during the transfer process, extracting the air in the baking chamber to form a low-pressure or vacuum environment, so that the silicone sheet in the tray can adhere tightly to the surface of the workpiece under atmospheric pressure, thereby achieving the wrapping and pressurization of irregularly shaped workpieces, thus improving the adhesion and pattern consistency of thermal sublimation or film transfer, and improving the transfer quality; at the same time, the stable fixed connection between the vacuum device and the device shell and the box shell ensures that the components do not shift or vibrate during operation, improving the overall stability of the vacuum system and facilitating disassembly and maintenance; the air inlet at the lower end and the air outlet at the upper end of the device shell form an air convection channel, realizing continuous heat dissipation of the vacuum device, maintaining a stable working temperature and extending the service life, while also playing a protective and heat insulation role, ensuring safe use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional front structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the overall three-dimensional back structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the overall exploded structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the outer shell structure of the device of this utility model.

[0020] Reference numerals: Oven body 1; Outer shell 10; Inner baking chamber 11; Baking tray assembly 12; Heating assembly 13; Vacuum device 20; Vacuum connector 14; First vacuum pipe 30; Second vacuum pipe 40; Device shell 50; Air inlet 51; Air outlet 52; First fixing perforation 21; Second fixing perforation 53; First outer shell perforation 15; Second outer shell perforation 54; Connector mounting position 121; Connector mounting part 141; Connector through hole 16; Oven door 60; Panel mounting shell 70; Control panel 80. Detailed Implementation

[0021] like Figures 1 to 5 As shown, an oven with a vacuum device includes an oven body 1, which includes a shell 10. An inner baking chamber 11 is located inside the shell 10, and a baking tray assembly 12 is installed inside the inner baking chamber 11 for placing workpieces to be transferred. Heating components 13 are installed at both ends of the inner baking chamber 11, respectively, at the upper and lower ends of the baking tray assembly 12. A vacuum device 20 is installed on the back of the shell 10, which is used to extract air from the inner baking chamber 11 to create a low-pressure or vacuum environment. A vacuum connector 14 is installed at the rear end of the baking tray assembly 12. A first vacuum pipe 30 connects the vacuum connector 14 to the baking tray assembly 12, and a second vacuum pipe 40 connects the vacuum connector 14 to the vacuum device 20, forming a complete vacuum extraction circuit. In use, the user places the workpiece with the pre-attached sublimation pattern or the workpiece to be transferred onto the baking tray assembly 12, closes the chamber door, and then starts the vacuum device 20 via the control panel 80. The vacuum device 20 extracts air from the tray cavity containing the baking tray assembly 12 through the second vacuum pipe 40, vacuum connector 14, and first vacuum pipe 30 until the set vacuum level is reached, at which point it automatically stops. At this time, the inner baking chamber 11 is in a low-pressure or vacuum state. The silicone sheet on the tray adheres tightly to the surface of the workpiece under atmospheric pressure, achieving the wrapping and pressurization of irregularly shaped workpieces. Combined with the heating of the heating component 13, the sublimation or film pattern transfer is completed. The workpiece can specifically be a cup, mobile phone case, or other flat product.

[0022] In practical implementation, a device housing 50 is installed on the back of the outer casing 10. This device housing 50 covers the outside of the vacuum pumping device 20, providing protection and heat insulation. The lower end of the device housing 50 has several evenly spaced air inlet openings 51, which are arranged at intervals to draw in air during the evacuation process, maintaining gas flow inside the device and preventing the vacuum pump from overheating. The upper end of the device housing 50 has several evenly spaced air outlet openings 52, which, together with the air inlet openings 51, form a vertically connected airflow channel. This allows the vacuum pumping device 20 to continuously dissipate heat through air convection during operation, maintaining a stable operating temperature and extending the service life of the vacuum pump.

[0023] In practical implementation, the vacuuming device 20 is installed inside the device housing 50. The side of the vacuuming device 20 has a plurality of first fixing holes 21 evenly spaced, and the surface of the device housing 50 has a plurality of second fixing holes 53 evenly spaced. Each of the second fixing holes 53 corresponds to one of the first fixing holes 21, and fasteners pass through the second fixing holes 53 and connect to the first fixing holes 21, thus securely installing the vacuuming device 20 inside the device housing 50, preventing displacement or vibration during operation and ensuring stable operation of the vacuuming system. The back of the housing 10 has a plurality of first housing holes 15 evenly spaced, and the edge of the device housing 50 has a plurality of second housing holes 54 evenly spaced. Each of the second housing holes 54 corresponds to one of the first housing holes 15, and fasteners pass through the second housing holes 54 and connect to the first housing holes 15, thus achieving a tight connection between the device housing 50 and the housing 10. Through the above structural design, the vacuum pumping device 20 can be stably installed inside the device housing 50, which in turn is reliably connected to the outer housing 10, forming a complete fixed support system. This installation method not only improves the overall stability of the device but also facilitates subsequent disassembly and maintenance. When it is necessary to replace or repair the vacuum pumping device 20, the device housing 50 can be removed separately simply by disassembling the corresponding fasteners. The structure is simple and maintenance is convenient.

[0024] In practical implementation, the baking pan assembly 12 has a connector mounting position 121 at its rear end, and the vacuum connector 14 has a connector mounting part 141 at its front end. The connector mounting part 141 is correspondingly disposed on the connector mounting position 121 and is connected and fixed to the connector mounting position 121 by fasteners passing through the connector mounting part 141, thereby achieving a stable connection between the vacuum connector 14 and the baking pan assembly 12. Through this structural design, the vacuum connector 14 can fit tightly with the baking pan assembly 12, ensuring the sealing and stability of the airflow channel and preventing air leakage during the vacuuming process.

[0025] In practical implementation, a connector through-hole 16 is provided in the middle of the back of the outer shell 10 of the box. The front end of the vacuum connector 14 extends out through the connector through-hole 16, so that the vacuum connector 14 can be connected to the vacuum pumping device 20 and the second vacuum pipe 40 outside the outer shell 10 of the box.

[0026] In practice, the front end of the outer shell 10 is movably connected to an oven door 60, and a panel mounting shell 70 is installed on the upper end of the oven door 60. A control panel 80 is installed in the panel mounting shell 70 for operating and controlling the oven's heating component 13, vacuum device 20, and other functions.

[0027] In summary, the oven of this invention can achieve a vacuum function during the transfer process, extracting air from the inner baking chamber 11 to create a low-pressure or vacuum environment. This allows the silicone sheet in the tray to adhere tightly to the workpiece surface under atmospheric pressure, achieving the wrapping and pressurization of irregularly shaped workpieces. This improves the adhesion and pattern consistency of the heat sublimation or film transfer, thereby enhancing the transfer quality. Simultaneously, the stable and fixed connection between the vacuum device 20 and the outer shell 50 and the outer shell 10 ensures that no components shift or vibrate during operation, improving the overall stability of the vacuum system and facilitating disassembly and maintenance. The air inlet 51 at the lower end and the air outlet 52 at the upper end of the outer shell 50 form an air convection channel, enabling continuous heat dissipation of the vacuum device 20, maintaining a stable operating temperature, extending its service life, and providing protection and insulation to ensure safe use.

Claims

1. An oven with a vacuum device, characterized in that, It includes an oven body (1), which includes a shell (10) with an inner baking chamber (11) inside. A baking tray assembly (12) is installed inside the inner baking chamber (11). A vacuum device (20) is installed on the back of the shell (10). A vacuum connector (14) is installed at the rear end of the baking tray assembly (12). A first vacuum pipe (30) is connected between the vacuum connector (14) and the baking tray assembly (12). A second vacuum pipe (40) is connected between the vacuum connector (14) and the vacuum device (20).

2. The oven with a vacuum device according to claim 1, characterized in that, The back of the housing (10) is fitted with a device housing (50), which covers the outside of the vacuum device (20).

3. The oven with a vacuum device according to claim 2, characterized in that, The lower end of the device housing (50) is provided with several air inlet openings (51), and the upper end of the device housing (50) is provided with several air outlet openings (52). The air outlet openings (52) and the air inlet openings (51) form an air flow channel that runs vertically through the device.

4. The oven with a vacuum device according to claim 3, characterized in that, A plurality of air inlets (51) are arranged at intervals at the lower end of the device housing (50), and a plurality of air outlets (52) are arranged at intervals at the upper end of the device housing (50).

5. The oven with a vacuum device according to claim 2, characterized in that, The vacuum device (20) is installed in the housing (50) of the device. The side of the vacuum device (20) is evenly provided with a plurality of first fixing holes (21), and the surface of the housing (50) is evenly provided with a plurality of second fixing holes (53). The plurality of second fixing holes (53) correspond one-to-one with the plurality of first fixing holes (21), and are connected and fixed to the first fixing holes (21) by fasteners passing through the second fixing holes (53).

6. The oven with a vacuum device according to claim 5, characterized in that, The back of the outer shell (10) of the housing is evenly provided with a plurality of first outer shell perforations (15), and the edge of the outer shell (50) of the device is evenly provided with a plurality of second outer shell perforations (54). The plurality of second outer shell perforations (54) correspond one to one with the plurality of first outer shell perforations (15), and are connected and fixed to the first outer shell perforations (15) by fasteners passing through the second outer shell perforations (54).

7. The oven with a vacuum device according to claim 1, characterized in that, The baking pan assembly (12) has a connector mounting position (121) at its rear end and a connector mounting part (141) at its front end. The connector mounting part (141) is correspondingly mounted on the connector mounting position (121) and is connected and fixed to the connector mounting position (121) by fasteners passing through the connector mounting part (141).

8. The oven with a vacuum device according to claim 7, characterized in that, The back of the housing (10) has a connector opening (16) in the middle, and the front end of the vacuum connector (14) extends out through the connector opening (16).

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