CN216282475U

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

Info

Publication number: CN216282475U
Application number: CN202122998292.0U
Authority: CN
Inventors: 孙杨杨
Original assignee: Dongguan Huaxin Automation Technology Co ltd
Current assignee: Dongguan Huaxin Automation Technology Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-04-12
Anticipated expiration: 2031-11-30

Abstract

The utility model relates to a multilayer high-vacuum oven for baking crystal oscillators, which comprises a closed box body and a baking rack arranged in the closed box body, wherein the baking rack comprises a plurality of tray supporting plates which are overlapped at intervals up and down, and the edges of two sides of the adjacent tray supporting plates are provided with interval heat conducting strips; heating mechanisms are respectively arranged on two sides of the baking frame and comprise heat conduction side plates, heating pipes and cooling water pipes. The utility model simplifies the structural design of the baking rack and the heating mechanism, leads the assembly to be more convenient and the cost to be lower, and can quickly and uniformly transfer heat to all parts of the baking rack by utilizing the high-efficiency heat-conducting performance of the heat-conducting side plate, the interval heat-conducting strip, the tray supporting plate and the material tray, thereby ensuring the uniformity and the stability of the temperature of all parts in the baking rack; the utility model greatly reduces the equipment cost, has high cost performance, and is more energy-saving and environment-friendly.

Description

Multi-layer high-vacuum oven for baking crystal oscillator

The technical field is as follows:

the utility model relates to the technical field of drying equipment, in particular to a multilayer high-vacuum oven for baking crystal oscillators.

Background art:

products with similar chip-type structures, such as chip-type quartz resonators, need to be dried by using a vacuum oven in the production process, so that the packaging is more uniform and comprehensive. The vacuum oven is an oven adopting a heat radiation mode of two-side heating, generally adopts a heating pipe to generate heat, and performs high-temperature drying and dehydration on the inside under the cooperation of vacuum pressure and a high-temperature heating device. The inside heating pipe setting of traditional vacuum oven is on the vacuum oven box, and the product of placing wherein heats the stoving dehydration around from the box is inside, but the heating pipe only sets up on the box inner wall, when more product is placed to the box inside, can't accomplish thoroughly fast the stoving dehydration, influences the follow-up processing use of product. There is also "vacuum oven" disclosed in chinese patent No. CN201821727123.5, which adopts the interval stacking method to set the heating pipe between each bracket to improve the drying efficiency, obviously, this structural method improves the drying efficiency, but the structure is too complex, the assembly is inconvenient and the cost is very high, and the taking and placing of the tray is not convenient.

The utility model has the following contents:

the utility model aims to overcome the defects in the prior art and provides a multilayer high-vacuum oven for crystal oscillator baking.

The technical scheme adopted by the utility model is as follows: a multilayer high vacuum oven for crystal oscillator baking comprises a closed box body with a box door and a baking rack arranged in the closed box body, wherein the baking rack comprises a plurality of material tray supporting plates which are overlapped at intervals up and down, the edges of two sides of the adjacent material tray supporting plates are provided with heat conduction strips at intervals, and the baking rack also comprises a plurality of tandem upright rods which longitudinally penetrate through the edges of the material tray supporting plates and the heat conduction strips at intervals; heating mechanisms are respectively installed on two sides of the baking frame, each heating mechanism comprises a heat conduction side plate installed in a contact mode with the side face of the charging tray supporting plate and the side face of the interval heat conduction strip, a plurality of groups of heating tube through grooves are formed in the inner side surface of each heat conduction side plate, heating tubes are respectively arranged in the heating tube through grooves of each group in a penetrating mode, water cooling tube grooves are formed in the outer side surfaces of the heat conduction side plates, and cooling water tubes are laid in the water cooling tube grooves.

And a side cover plate is also arranged on the outer side surface of the heat conduction side plate.

The heating tubes are U-shaped, and correspondingly, two ends of each heating tube are provided with wiring terminals.

And the top of the closed box body is provided with a lead sealing joint and a temperature sensor sealing joint for the lead of the heating tube to penetrate out.

The cooling water pipe is in a continuous circuitous zigzag shape, and the water inlet end and the water outlet end of the cooling water pipe are both arranged downwards and respectively penetrate out of the bottom plate of the closed box body.

And a vacuum pump interface is arranged on one side wall of the closed box body and is connected with a vacuum pump.

The bottom of the baking frame is connected with a lower supporting leg and a lower clapboard, and the top of the baking frame is connected with an upper supporting leg and an upper clapboard.

The sealed box body is arranged on a vertical back plate, the rear part of the sealed box body and the vertical back plate are provided with communicated rear openings, a lifting sealing door is arranged at the rear opening and comprises a sealing door plate, a door pressing plate connected with the outer surface of the sealing door plate, a pressing plate cylinder and a pressing plate guide rod which are connected with the door pressing plate and drive the pressing plate cylinder and the pressing plate guide rod, a cylinder bearing plate used for installing the pressing plate cylinder, a vertical track plate used for installing the cylinder bearing plate and a lifting cylinder driving the cylinder bearing plate to move up and down along the vertical track plate, and the vertical track plate and the lifting cylinder are both arranged on the vertical back plate.

The utility model greatly simplifies the structural design of the baking rack and the heating mechanism, leads the assembly to be more convenient and the cost to be lower, and can quickly and uniformly transfer heat to all parts of the baking rack by utilizing the high-efficiency heat-conducting performance of the heat-conducting side plates, the interval heat-conducting strips, the material tray supporting plates and the material trays, thereby ensuring the uniformity and the stability of the temperature of all parts in the baking rack. When the temperature reaches a set temperature, baking the product, rapidly cooling the heat-conducting side plate by using a cooling water pipe, and further taking away the heat of the tray plate of the material tray and the heat of the material tray; therefore, the baking and cooling efficiency of the utility model can completely meet the use requirement, and meanwhile, the equipment cost is greatly reduced, the cost performance is extremely high, and the utility model is more energy-saving and environment-friendly.

Description of the drawings:

FIGS. 1 and 2 are schematic structural views of a baking rack and a heating mechanism according to the present invention;

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

The specific implementation mode is as follows:

as shown in fig. 1-4, the present invention relates to a multi-layer high vacuum oven for crystal oscillator baking, which comprises a closed box body 1 with a door 11 and a baking rack 2 arranged in the closed box body 1, wherein the baking rack 2 comprises a plurality of tray supporting plates 21 stacked up and down at intervals, two side edges of adjacent tray supporting plates 21 are provided with interval heat conducting strips 22, and the baking rack 2 further comprises a plurality of tandem upright rods 23 longitudinally penetrating through the edges of the tray supporting plates 21 and the interval heat conducting strips 22; in the both sides of griddle 2 install heating mechanism 3 respectively, heating mechanism 3 include with the side contact installation's of charging tray layer board 21 and interval heat conduction strip 22 heat conduction curb plate 31, and the inboard surface of heat conduction curb plate 31 is equipped with a plurality of groups heating tube and leads to the groove, and every group heating tube leads to the groove and wears to be equipped with heating tube 32 respectively, is equipped with the water-cooling tube recess in the outboard surface of heat conduction curb plate 31, has laid condenser tube 33 in the water-cooling tube recess.

According to the utility model, a group of heating mechanisms 3 are respectively arranged on two sides of a baking frame 2, a plurality of groups of heating tubes 32 are attached to a heat conduction side plate 31, and the heat conduction side plate 31 is directly contacted with a heat conduction strip 22 and a tray supporting plate 21 for heat conduction in a vacuum pumping state, so that a tray on the tray supporting plate 21 is heated, a crystal oscillator quickly and uniformly reaches a set temperature, a packaging colloid is uniformly melted, natural leveling is realized, and water vapor generated in the drying process is pumped away through a vacuum pump; when the toast reaches the settlement temperature, stop heating tube 32 work, utilize condenser tube 33 to make heat conduction curb plate 31 cooling down fast simultaneously, and then take away the heat of interval heat conduction strip 22, charging tray layer board 21 and charging tray, make charging tray rapid cooling, make the rapid cooling solidification of encapsulation colloid, realize taking out the charging tray after the encapsulation.

The side cover plate 34 is further installed on the outer side surface of the heat conduction side plate 31, and the side cover plate 34 can prevent heat from dissipating towards the two sides of the sealed box body 1, so that heat loss is reduced, and energy is saved.

The heating tube 32 is U-shaped, the straight section of the heating tube 32 is arranged in the heating tube through groove of the heat conduction side plate 31 in a penetrating way, the bending section is exposed, and the two ends of each heating tube 32 are provided with wiring terminals. In the embodiment, each side is provided with 5U-shaped heating tubes;

the top of the closed box body 1 is provided with a lead sealing joint 36 for the lead of the heating tube 32 to penetrate out and a temperature sensor sealing joint 35. Set up the inside temperature everywhere of a plurality of sensing through temperature sensor sealing joint 35 in the inside different positions of airtight box 1, when temperature sensor temperature deviation was too big, it has a fault to show certain heating tube to indicate operating personnel to maintain, avoid toasting the encapsulation and lead to the defective products under the equipment failure condition.

The cooling water pipe 33 is in a continuous circuitous zigzag shape, and the water inlet end and the water outlet end of the cooling water pipe 33 are both arranged downwards and respectively penetrate out of the bottom plate of the closed box body 1, so that the cooling water pipe is convenient to be externally connected with a cold water source and recover hot water.

A vacuum pump interface 100 is arranged on one side wall of the closed box body 1 and connected with a vacuum pump 4, continuous vacuum pumping is carried out through the vacuum pump 4, and heating and baking are achieved in a vacuum state.

2 bottoms of griddle are connected with four lower supporting legs 24 and one baffle 25 down, griddle 2's top is connected with four and goes up supporting leg 26 and one and go up baffle 27, through lower supporting leg 24 and lower baffle 25, go up supporting leg 26 and last baffle 27 and make griddle 2 keep the certain distance and keep apart with airtight box 1 bottom and top, avoid 2 heats of griddle to transmit airtight box 1 excessively on, thereby reduce the heat loss, play energy saving and consumption reduction effect.

The closed box body 1 is arranged on a vertical back plate 5, the rear part of the closed box body 1 and the vertical back plate 5 are provided with a rear opening 500 which is communicated, a lifting sealing door 6 is arranged at the rear opening 500, the lifting sealing door 6 comprises a sealing door plate 61, a door pressing plate 62 which is connected with the outer surface of the sealing door plate 61, a pressing plate cylinder 63 which is connected with the door pressing plate 62 and drives the door pressing plate 62, a pressing plate guide rod 64, a cylinder bearing plate 65 for installing the pressing plate cylinder 63, a vertical track plate 66 for installing the cylinder bearing plate 65 and a lifting cylinder 67 for driving the cylinder bearing plate 65 to move up and down along the vertical track plate 66, and 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 arranged on the vertical back plate 5. In this embodiment, there are two platen cylinders 63, and there are 4 sets of platen guide rods 64 and corresponding guide bearings; drive cylinder loading board 65 through lift cylinder 67 and go up and down along vertical track of vertical track board 66, and then drive clamp plate cylinder 63 and door clamp plate 62, sealed door plant 61 goes up and down, sealed door plant 61 passes through clamp plate cylinder 63 and door clamp plate 62 drive with the sealed of back opening 500, during sealed, sealed door plant 61 falls, clamp plate cylinder 63 drives door clamp plate 62 and sealed door plant 61 and compresses tightly to reach sealedly to back opening 500, when will opening, clamp plate cylinder 63 drives door clamp plate 62 and drives sealed door plant 61 and leave back opening 500, the rethread lift cylinder 67 drives actuating cylinder and bears 65 boards and make sealed door plant 61 wholly rise can.

In conclusion, the utility model greatly simplifies the structural design of the baking rack and the heating mechanism, so that the baking rack and the heating mechanism are more convenient to assemble and have lower cost, and the heat can be quickly and uniformly transferred to all parts of the baking rack by utilizing the high-efficiency heat-conducting performance of the heat-conducting side plates, the interval heat-conducting strips, the material tray supporting plates and the material trays, so that the uniformity and the stability of the temperature in all parts of the baking rack are ensured. When the temperature reaches the set temperature, the baking is finished, the heat conducting side plates are rapidly cooled by utilizing the cooling water pipes, and then the heat of the tray plate and the material tray is taken away; therefore, the baking and cooling efficiency of the utility model can completely meet the use requirement, and meanwhile, the equipment cost is greatly reduced, the cost performance is extremely high, and the utility model is more energy-saving and environment-friendly.

It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the utility model, and these modifications and improvements are also considered to be within the scope of the utility model.

Claims

1. The utility model provides a multilayer high vacuum oven for crystal oscillator toasts, its includes the airtight box that has the chamber door and sets up the griddle in airtight box, its characterized in that: the baking rack comprises a plurality of tray supporting plates which are vertically overlapped at intervals, the edges of two sides of the adjacent tray supporting plates are provided with heat conducting strips at intervals, and the baking rack also comprises a plurality of tandem upright posts which longitudinally penetrate through the edges of the tray supporting plates and the heat conducting strips at intervals; heating mechanisms are respectively installed on two sides of the baking frame, each heating mechanism comprises a heat conduction side plate installed in a contact mode with the side face of the charging tray supporting plate and the side face of the interval heat conduction strip, a plurality of groups of heating tube through grooves are formed in the inner side surface of each heat conduction side plate, heating tubes are respectively arranged in the heating tube through grooves of each group in a penetrating mode, water cooling tube grooves are formed in the outer side surfaces of the heat conduction side plates, and cooling water tubes are laid in the water cooling tube grooves.

2. The multi-layer high vacuum oven for crystal baking of claim 1, characterized in that: and a side cover plate is also arranged on the outer side surface of the heat conduction side plate.

3. The multi-layer high vacuum oven for crystal baking of claim 1, characterized in that: the heating tubes are U-shaped, and two ends of each heating tube are provided with wiring terminals.

4. The multi-layer high vacuum oven for crystal baking according to claim 1 or 3, characterized in that: and the top of the closed box body is provided with a lead sealing joint and a temperature sensor sealing joint for the lead of the heating tube to penetrate out.

5. The multi-layer high vacuum oven for crystal baking of claim 1, characterized in that: the cooling water pipe is in a continuous circuitous zigzag shape, and the water inlet end and the water outlet end of the cooling water pipe are both arranged downwards and respectively penetrate out of the bottom plate of the closed box body.

6. The multi-layer high vacuum oven for crystal baking of claim 1, characterized in that: and a vacuum pump interface is arranged on one side wall of the closed box body and is connected with a vacuum pump.

7. The multi-layer high vacuum oven for crystal baking of claim 1, characterized in that: the bottom of the baking frame is connected with a lower supporting leg and a lower clapboard, and the top of the baking frame is connected with an upper supporting leg and an upper clapboard.

8. The multi-layer high vacuum oven for crystal baking of claim 1, characterized in that: the sealed box body is arranged on a vertical back plate, the rear part of the sealed box body and the vertical back plate are provided with communicated rear openings, a lifting sealing door is arranged at the rear opening and comprises a sealing door plate, a door pressing plate connected with the outer surface of the sealing door plate, a pressing plate cylinder and a pressing plate guide rod which are connected with the door pressing plate and drive the pressing plate cylinder and the pressing plate guide rod, a cylinder bearing plate used for installing the pressing plate cylinder, a vertical track plate used for installing the cylinder bearing plate and a lifting cylinder driving the cylinder bearing plate to move up and down along the vertical track plate, and the vertical track plate and the lifting cylinder are both arranged on the vertical back plate.