CN216282475U - Multi-layer high-vacuum oven for baking crystal oscillator - Google Patents

Abstract

The utility model relates to a multi-layer high-vacuum oven for crystal vibration baking, which comprises an airtight box body and a baking rack arranged in the airtight box body. Spaced heat-conducting strips are arranged on both sides of the adjacent tray support plates; heating mechanisms are respectively installed on both sides of the baking rack, and the heating mechanisms include heat-conducting side plates, heating pipes, and cooling water pipes. The utility model simplifies the structural design of the baking rack and the heating mechanism, so that the assembly is more convenient and the cost is lower. The heat is evenly transmitted to all parts of the baking rack to ensure the uniformity and stability of the internal temperature. When the set temperature is reached, after baking the product, the cooling water pipe is used to quickly cool down the heat conduction side plate, and then take it away The heat of the tray tray and the tray; the equipment cost of the utility model is greatly reduced, the cost performance is extremely high, and the utility model is more energy-saving and environmentally friendly.

Description

A multi-layer high vacuum oven for crystal baking

Technical field:

The utility model relates to the technical field of drying equipment, in particular to a multi-layer high vacuum oven used for crystal vibration baking.

Background technique:

In the production process of products with similar chip structure, such as chip quartz resonator, it is necessary to use a vacuum oven for drying operation to make the packaging more uniform and comprehensive. The vacuum oven is a kind of oven that adopts the heat radiation method of heating on both sides. Generally, a heating tube is used for heating, and the interior is dried and dehydrated at a high temperature with the cooperation of vacuum pressure and high temperature heating device. The heating tube inside the traditional vacuum oven is arranged on the vacuum oven box, and the products placed in it are heated, dried and dehydrated from the inside of the box, but the heating tube is only arranged on the inner wall of the box. When there are multiple products, it cannot be dried and dehydrated quickly and thoroughly, which affects the subsequent processing and use of the products. Also like the "Vacuum Oven" disclosed in Chinese Patent No. CN201821727123.5, in order to improve the drying efficiency, a heating tube is arranged between each bracket by means of spaced lamination. Obviously, this structure improves the drying efficiency. Drying efficiency, but the structure is too complicated, the assembly is inconvenient and the cost is high, and it is not easy to pick and place the tray.

Utility model content:

The purpose of this utility model is to overcome the above-mentioned deficiencies of the prior art, and provide a multi-layer high vacuum oven for crystal oscillator baking.

The technical scheme adopted by the utility model is: a multi-layer high-vacuum oven for crystal vibration baking, which comprises a closed box body with a box door and a baking rack arranged in the closed box body, and the baking rack includes several The upper and lower trays are stacked at intervals, and the two edges of the adjacent trays are provided with spaced heat-conducting strips. The baking rack also includes several longitudinally extending through the edges of the trays and the spaced heat-conducting strips. A vertical rod; a heating mechanism is installed on both sides of the baking rack, the heating mechanism includes a thermally conductive side plate installed in contact with the sides of the material tray support and the spaced heat-conducting strip, and the inner surface of the thermally conductive side plate is installed There are several groups of heating pipe through grooves, each group of heating pipe through grooves are respectively provided with heating pipes, the outer surface of the heat conduction side plate is provided with water cooling pipe grooves, and cooling water pipes are laid in the water cooling pipe grooves.

A side cover plate is also installed on the outer surface of the heat-conducting side plate.

The heating tubes are in a "U" shape, and correspondingly, terminals are provided at both ends of each heating tube.

The top of the airtight box is provided with a wire sealing joint and a temperature sensor sealing joint for the wire of the heating pipe to pass through.

The cooling water pipe is in a continuous torturous shape, and the water inlet end and the water outlet end of the cooling water pipe are both arranged downward and respectively penetrate the bottom plate of the airtight box.

One side wall of the closed box body is provided with a vacuum pump interface and is connected with a vacuum pump.

The bottom of the baking rack is connected with a lower support foot and a lower partition, and the top of the baking rack is connected with an upper support foot and an upper partition.

The airtight box body is installed on a vertical backplane, the rear part of the airtight box body and the vertical backplane have a rear opening that communicates with each other, and a lift sealing door is arranged at the rear opening. A door pressure plate connected to the outer surface of the sealing door plate, a pressure plate cylinder and a pressure plate guide rod connected to the door pressure plate and driving it, a cylinder bearing plate for installing the pressure plate cylinder, a vertical rail plate for installing the cylinder bearing plate, and a driving cylinder bearing A lift cylinder that moves the plate up and down along the vertical track plate, and the vertical track plate and the lift cylinder are installed on the vertical back plate.

The utility model greatly simplifies the structural design of the baking rack and the heating mechanism, makes the assembly more convenient and lowers the cost, and utilizes the high-efficiency thermal conductivity of the heat-conducting side plates, the spaced heat-conducting strips, the material tray support plate and the material tray, It can quickly and uniformly transfer heat to all parts of the baking rack, ensuring uniformity and stability of temperature throughout the interior. When the set temperature is reached, the baking product is completed, and the heat-conducting side plate is rapidly cooled and cooled by the cooling water pipe, and then the heat of the tray tray and the tray is taken away; therefore, the baking and cooling efficiency of the utility model can be fully used. At the same time, the cost of equipment is greatly reduced, the cost performance is extremely high, and it is more energy-saving and environmentally friendly.

Description of drawings:

Fig. 1, Fig. 2 are the structural representations of roasting rack and heating mechanism in the present utility model;

3 and 4 are schematic diagrams of the overall structure of the vacuum oven of the present invention.

Detailed ways:

As shown in FIG. 1-FIG. 4, the utility model is a multi-layer high vacuum oven for crystal oscillator baking, which includes a closed box body 1 with a box door 11 and a closed box body 1 arranged in the closed box body 1. Baking rack 2, the baking rack 2 includes a plurality of tray support plates 21 stacked up and down at intervals, and spaced heat conduction strips 22 are arranged on both sides of the adjacent tray support plates 21, and the baking rack 2 also includes a number of The strip runs through the edge of the tray support plate 21 and the series connection vertical rods 23 of the heat-conducting strips 22 in the longitudinal direction; heating mechanisms 3 are respectively installed on both sides of the baking rack 2, and the heating mechanism 3 includes and the material The side surfaces of the disk tray 21 and the spaced heat-conducting strips 22 are in contact with the heat-conducting side plate 31 installed, and the inner surface of the heat-conducting side plate 31 is provided with several groups of heating pipe through grooves, and each group of heating pipe through grooves is respectively provided with a heating pipe 32, A water-cooling pipe groove is provided on the outer surface of the heat-conducting side plate 31 , and a cooling water pipe 33 is laid in the water-cooling pipe groove.

The utility model utilizes that a group of heating mechanisms 3 are arranged on both sides of the baking rack 2, and a plurality of groups of heating pipes 32 are attached to the heat-conducting side plates 31. The direct contact of the tray support 21 conducts heat, and then heats the tray on the tray support 21, so that the crystal oscillator reaches the set temperature quickly and evenly, so that the packaging colloid is evenly melted and leveled naturally, and the water generated during the drying process The air is pumped away by a vacuum pump; when the baking reaches the set temperature, the heating pipe 32 is stopped, and the cooling water pipe 33 is used to quickly cool the heat-conducting side plate 31, thereby taking away the spacer heat-conducting strip 22, the tray support 21 and the tray. The heat can quickly cool down the material tray, so that the packaging colloid quickly cools and solidifies, and the material tray can be taken out after the packaging is realized.

A side cover plate 34 is also installed on the outer surface of the heat-conducting side plate 31 . The side cover plate 34 can prevent heat from dissipating to both sides of the sealed box 1 , thereby reducing heat loss and saving energy.

The heating pipe 32 is in a "U" shape. The straight section of the heating pipe 32 is inserted into the heating pipe through groove of the heat-conducting side plate 31 , and the curved section is exposed. The two ends of each heating pipe 32 are provided with terminals. In this embodiment, each side is provided with 5 "U"-shaped heating pipes;

The top of the airtight box 1 is provided with a wire sealing joint 36 and a temperature sensor sealing joint 35 for the wire of the heating tube 32 to pass through. Through the temperature sensor sealing joint 35, a plurality of temperature sensors are set at different positions inside the airtight box 1 to sense the temperature of various parts of the interior. When the temperature deviation of the temperature sensor is too large, it means that there is a fault in the heating pipe somewhere, so as to prompt the operator to perform maintenance. Avoid baking and packaging in case of equipment failure, resulting in defective products.

The cooling water pipe 33 is in a continuous tortuous shape, and the water inlet and outlet ends of the cooling water pipe 33 are arranged downward and respectively penetrate the bottom plate of the airtight box 1 to facilitate external cold water sources and hot water recovery.

One side wall of the airtight box 1 is provided with a vacuum pump interface 100 and is connected with a vacuum pump 4 , which is continuously evacuated by the vacuum pump 4 to achieve heating and baking in a vacuum state.

The bottom of the baking rack 2 is connected with four lower support feet 24 and a lower partition 25, and the top of the baking rack 2 is connected with four upper support feet 26 and an upper partition 27. The partition plate 25, the upper support feet 26 and the upper partition plate 27 keep the baking rack 2 at a certain distance from the bottom and the top of the airtight box 1 and isolate it, so as to avoid excessive heat transfer of the baking rack 2 to the airtight box 1. Thereby reducing heat loss and saving energy and reducing consumption.

The airtight box 1 is installed on a vertical backplane 5, and the rear part of the airtight box 1 and the vertical backplane 5 have a rear opening 500 that communicates with each other. The sealing door 6 includes a sealing door plate 61, a door pressing plate 62 connected with the outer surface of the sealing door plate 61, a pressing plate cylinder 63 connected with the door pressing plate 62 and driving it, a pressing plate guide rod 64, a cylinder bearing plate 65 for installing the pressing plate cylinder 63, The vertical rail plate 66 for installing the cylinder bearing plate 65 and the lifting cylinder 67 for driving the cylinder bearing plate 65 to move up and down along the vertical rail plate 66, the lifting cylinder 67 drives the cylinder bearing plate 65 through a connecting plate 68; The vertical track plate 66 and the lifting cylinder 67 are both installed on the vertical back plate 5 . In this embodiment, there are two pressure plate cylinders 63 , and four sets of pressure plate guide rods 64 and corresponding guide bearings; the lifting cylinder 67 drives the cylinder carrying plate 65 to lift up and down along the longitudinal track of the vertical rail plate 66 , thereby driving the pressure plate cylinder 63 And the door pressing plate 62 and the sealing door plate 61 are raised and lowered, and the sealing between the sealing door plate 61 and the rear opening 500 is driven by the pressing plate cylinder 63 and the door pressing plate 62. When sealing, the sealing door plate 61 is lowered, and the pressing plate cylinder 63 drives the door pressing plate 62 and the sealing door plate 61 to move toward each other. The rear opening 500 is pressed to seal, and when it is to be opened, the pressure plate cylinder 63 drives the door pressure plate 62 to drive the sealing door plate 61 to leave the rear opening 500, and then the lifting cylinder 67 drives the cylinder bearing plate 65 to lift the sealing door plate 61 as a whole.

To sum up, the utility model greatly simplifies the structural design of the baking rack and the heating mechanism, making it more convenient to assemble and lower in cost, and utilizes heat-conducting side plates, spaced heat-conducting strips, material tray support plates, and material trays. The high-efficiency thermal conductivity can quickly and uniformly transfer the heat to all parts of the baking rack, ensuring the uniformity and stability of the internal temperature. When the set temperature is reached, the baking is completed, and the heat-conducting side plate is rapidly cooled and cooled by the cooling water pipe, thereby taking away the heat of the tray tray and the tray; therefore, the baking and cooling efficiency of the utility model can fully meet the requirements of use , At the same time, the cost of equipment is greatly reduced, the cost performance is extremely high, and it is more energy-saving and environmentally friendly.

It can be understood that the above embodiments are only exemplary embodiments adopted to illustrate the principle of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims (8)

1. a multi-layer high-vacuum oven for crystal vibration baking, it comprises a closed box with a box door and a baking rack arranged in the closed box, it is characterized in that: the baking rack comprises several upper and lower intervals For the stacked tray support plates, spaced heat-conducting strips are arranged on both edges of the adjacent tray support plates; A heating mechanism is installed on both sides of the baking rack, the heating mechanism includes a heat-conducting side plate installed in contact with the sides of the material tray support and the spaced heat-conducting strip, and the inner surface of the heat-conducting side plate is provided with several A group of heating pipe through grooves, each group of heating pipe through grooves are respectively provided with heating pipes, water cooling pipe grooves are arranged on the outer surface of the heat conduction side plate, and cooling water pipes are laid in the water cooling pipe grooves. 2 . The multi-layer high-vacuum oven for crystal oscillator baking according to claim 1 , wherein a side cover plate is also installed on the outer surface of the heat-conducting side plate. 3 . 3 . The multi-layer high-vacuum oven for crystal oscillator baking according to claim 1 , wherein the heating pipe is in a “U” shape, and each heating pipe is provided with terminals at both ends. 4 . 4. The multi-layer high-vacuum oven for crystal oscillator baking according to claim 1 or 3, characterized in that: the top of the airtight box is provided with a wire sealing joint for the wire of the heating pipe to pass through and a temperature sensing device seal connector. 5. The multi-layer high-vacuum oven for crystal oscillator baking according to claim 1, characterized in that: the cooling water pipe is in a continuous tortuous shape, and the water inlet end and the water outlet end of the cooling water pipe are both set downward and Pass through the bottom plate of the airtight box respectively. 6 . The multi-layer high vacuum oven for crystal oscillator baking according to claim 1 , wherein a vacuum pump interface is provided on one side wall of the airtight box and connected with a vacuum pump. 7 . 7. The multi-layer high-vacuum oven for crystal oscillator baking according to claim 1, wherein the bottom of the baking rack is connected with a lower support foot and a lower partition, and the top of the baking rack is connected with an upper support Feet and upper bulkhead. 8. The multi-layer high-vacuum oven for crystal oscillator baking according to claim 1, wherein the airtight box is mounted on a vertical backplane, and the rear of the airtight box and the vertical backplane It has the same rear opening, and a lifting sealing door is arranged at the rear opening. The lifting sealing door includes a sealing door panel, a door pressing plate connected with the outer surface of the sealing door panel, a pressing plate cylinder connected with the door pressing plate and driving it and a pressing plate guide rod, a The cylinder carrying plate for installing the platen cylinder, the vertical rail plate for installing the cylinder carrying plate, and the lifting cylinder for driving the cylinder carrying plate to move up and down along the vertical rail plate, the vertical rail plate and the lifting cylinder are all installed on the vertical rail plate. on the back panel.

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