Online monitoring instrument for atmosphere purity of vacuum sintering furnace

Abstract

The utility model discloses a vacuum sintering furnace atmosphere purity online monitor which comprises a detection box, a sealing groove is formed in the surface of the detection box, a check block is arranged on the outer side of the sealing groove and connected with a first monitoring piece, the first monitoring piece is connected with a movable plate through a conveying assembly, and the movable plate is connected with a second monitoring piece through a conveying assembly. A telescopic air cylinder is arranged at the side end of the movable plate and installed in the detection box. According to the online monitoring instrument for the atmosphere purity of the vacuum sintering furnace, the detection box can be conveniently moved into the vacuum sintering furnace, a telescopic air cylinder is used for driving a movable plate to move, a first monitoring piece can be conveniently moved out of the detection box for detection, and the problem that overall monitoring is complex due to the fact that punching is needed for monitoring is solved; and the stop block arranged at the end part of the first monitoring piece is conveniently clamped in the sealing groove for protection, so that the first monitoring piece can be effectively protected when not working, the problem that the detection box is damaged due to collision during movement is avoided, and the service life of the first monitoring piece is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum sintering furnace related technical field, concretely is a kind of vacuum sintering furnace atmosphere purity on-line monitor. BACKGROUND

[0002] Vacuum sintering furnace is a kind of equipment for material sintering, usually under high temperature and vacuum environment, to improve the density and performance of material, need to be monitored during use, ensure that the preset sintering temperature is reached, but the existing vacuum sintering furnace monitor still has certain defects when using, in the process of using, the temperature of the existing monitoring sintering chamber is set in the sintering chamber temperature sensor and the temperature display set in the furnace body outside jointly monitor temperature, outside detection is easy to cause temperature measurement inaccuracy.

[0003] In order to overcome the above-mentioned defects, prior art 1 (application number for 201820284102.4, application date is 2018-02-28 Chinese patent) a kind of temperature measurement system of vacuum sintering furnace, including infrared thermometer and graphite sleeve, the graphite sleeve is set on the outer wall of vacuum sintering furnace, the vacuum sintering furnace is provided with sintering chamber, the inner wall of the furnace body shell is provided with carbon felt insulation layer;The graphite sleeve includes inner pipe and outer sleeve, the inner pipe passes through furnace body shell, carbon felt insulation layer and sintering chamber inner cavity are connected, the outer sleeve is fixed on the furnace body shell, outer sleeve is inserted for the infrared thermometer to detect sintering chamber temperature, graphite sleeve connects sintering chamber inner cavity, its heat preservation and high-temperature resistance performance is good, ensures that it does not affect the sintering effect of sintering chamber, and the sintering temperature in sintering chamber can be accurately monitored.

[0004] Although the prior art improves the overall measurement accuracy, but in the working process, by installing graphite sleeve on sintering furnace to monitor, therefore need to carry out punching operation on sintering furnace, but punching is easy to cause the damage of furnace body, and the heating element inside furnace body is composed of expensive molybdenum sheet, easy to cause great economic loss, using infrared temperature measurement to detect, the infrared thermometer set is easy to be affected by external environment, so that the overall service life is reduced.

[0005] In view of the above problems, it is urgent to make innovative design on the basis of original vacuum sintering furnace atmosphere purity on-line monitor, therefore we put forward vacuum sintering furnace atmosphere purity on-line monitor can well solve the above problems. Utility model content

[0006] The purpose of this invention is to provide an online monitoring instrument for the atmosphere purity of a vacuum sintering furnace, in order to solve the problems mentioned in the background art. Currently, the monitoring is carried out by installing graphite sleeves on the sintering furnace, which requires drilling holes in the sintering furnace. However, drilling holes can easily damage the furnace body, and the heating elements inside the furnace body are composed of expensive molybdenum sheets, which can easily cause significant economic losses. Infrared thermometry is used for detection, but the infrared thermometer is easily affected by the external environment, which reduces the overall service life.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an online monitoring instrument for the purity of the atmosphere in a vacuum sintering furnace, comprising a detection box, a sealing groove on the surface of the detection box, a stop block on the outside of the sealing groove, the stop block being connected to a first monitoring element, the first monitoring element being connected to a moving plate via a conveying assembly, a telescopic cylinder being provided on the side of the moving plate, and the telescopic cylinder being installed inside the detection box.

[0008] Preferably, the conveying assembly includes an air suction cylinder installed on the side of the first monitoring element, the side of the air suction cylinder being connected to the side of the moving plate via a conveying cylinder, and the air suction cylinder being in communication with the conveying cylinder.

[0009] Preferably, the suction cylinder has a first through hole, and the conveying cylinder has a second through hole.

[0010] Preferably, a first sleeve is fitted on the outside of the conveying cylinder, the first sleeve is installed inside the detection box, and a transmission cylinder is connected to the side end of the first sleeve through a pipe, and the piston of the transmission cylinder is connected to the side end of the moving plate.

[0011] Preferably, the end of the transmission cylinder is connected to a nozzle via a pipe, the nozzle is located at the side of the second monitoring element, and the second monitoring element is disposed inside the detection box.

[0012] Preferably, a limiting component is provided on the side of the detection box, the limiting component includes a limiting box installed on the side of the detection box, a motor is provided inside the detection box, and a turntable is connected to the output end of the motor.

[0013] Preferably, the turntable is installed inside the limiting box, a toothed block is installed on the outside of the turntable, a gear is meshed on the toothed block, a rotating shaft is connected through the inside of the gear, a second sleeve is provided on the outside of the rotating shaft, and the second sleeve is connected to the limiting box by a sealing ring.

[0014] Preferably, the second sleeve is internally threaded with a screw, the screw is connected to the limiting box via a limiting block, and an arc block is connected to the end of the screw.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the vacuum sintering furnace atmosphere purity on - line monitoring instrument, the detection box is convenient to move into the vacuum sintering furnace inside, uses telescopic air cylinder to drive moving plate to move, and it is convenient for first monitoring piece to move out of the detection box inside and detect, reduces the problem that the overall monitoring is complicated due to the need for punching to monitor, the stopper set up at the end of first monitoring piece is convenient to be clamped in the sealing groove inside and protect, so that first monitoring piece can be effectively protected when not working, avoids the problem that damage is caused when detection box moves and collides, improves the service life of first monitoring piece, and its specific contents are as follows:

[0016] (1) first monitoring piece moves out of the detection box inside and detects, reduces the problem that the overall monitoring is complicated due to the need for punching to monitor, the stopper set up at the end of first monitoring piece is convenient to be clamped in the sealing groove inside and protect, avoids the problem that damage is caused when detection box moves and collides;

[0017] (2) when the conveying cylinder moves, the second through hole of the conveying cylinder is communicated with the inside of the first sleeve, when the moving plate moves, it is convenient to transmit the gas through the cooperation of the transmission cylinder and the pipeline, reduces the problem that the cost increases due to the need for additional setting drive;

[0018] (3) the detection box is provided with a one-way valve structure, reduces the problem that the stability is reduced due to the inflation of the detection box inside, the gas sprayed by the nozzle is monitored by the second monitoring piece, ensures that the detected gas can be accurately and stably transmitted to the position of the second monitoring piece, guarantees the accuracy and timeliness of detection;

[0019] (4) the motor output end drives the rotating disc inside the limiting box to rotate, the tooth block on the rotating disc drives the gear to rotate, so that the rotating shaft inside the gear drives the second sleeve to rotate, the overall structure is simple and convenient, reduces the problem that the overall maintenance cost increases due to the setting of complex structure;

[0020] (5) the arc block is expanded and effectively supports the inner wall of the sintering furnace, through the cooperation of the arc block, the detection box can be firmly fixed in the sintering furnace, prevents the displacement of the detection box due to vibration during the operation of the sintering furnace, ensures that the first monitoring piece inside the detection box is always in the best detection position. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the overall structure schematic view of the utility model;

[0022] Figure 2 It is the internal structure schematic view of the detection box of the utility model;

[0023] Figure 3 It is the sleeve cut structure schematic view of the utility model;

[0024] Figure 4It is the whole back view structure schematic diagram of the utility model;

[0025] Figure 5 It is the whole cut structure schematic diagram of the utility model;

[0026] Figure 6 It is the cut structure schematic diagram of the utility model limit box;

[0027] Figure 7 It is the internal structure schematic diagram of the utility model limit box.

[0028] In the figure: 1, detection box; 2, sealing groove; 3, stop block; 4, first monitoring piece; 5, suction cylinder; 6, conveying cylinder; 7, moving plate; 8, telescopic air cylinder; 9, first through hole; 10, second through hole; 11, first sleeve; 12, pipeline; 13, transmission cylinder; 14, spray head; 15, second monitoring piece; 16, limit box; 17, motor; 18, rotary table; 19, tooth block; 20, gear; 21, rotating shaft; 22, second sleeve; 23, sealing ring; 24, screw; 25, limit block; 26, arc block. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] Embodiment one: in this embodiment, conveying cylinder 6 drives suction cylinder 5 to move outside the sealing groove 2 opened on the surface of detection box 1, which facilitates the first monitoring piece 4 to move out of the inside of detection box 1 for detection, reduces the problem that the whole monitoring is complicated due to the need for punching for monitoring, such as Figures 1-3The technical scheme shown includes the detection box 1, the surface of the detection box 1 is provided with a sealing groove 2, the outer side of the sealing groove 2 is provided with a stop block 3, the stop block 3 is connected with a first monitoring member 4, the first monitoring member 4 is connected with a moving plate 7 through a conveying assembly, the side end of the moving plate 7 is provided with a telescopic air cylinder 8, the telescopic air cylinder 8 is installed inside the detection box 1, the conveying assembly includes an air suction cylinder 5 installed at the side end of the first monitoring member 4, the side end of the air suction cylinder 5 is connected with the side end of the moving plate 7 through a conveying cylinder 6, and the air suction cylinder 5 is communicated with the conveying cylinder 6, the detection box 1 is convenient to move into the vacuum sintering furnace, the telescopic air cylinder 8 drives the moving plate 7 to move, so that the conveying cylinder 6 at the side end of the moving plate 7 drives the air suction cylinder 5 to move outwards of the sealing groove 2 opened on the surface of the detection box 1, the first monitoring member 4 is convenient to move out of the detection box 1 for detection, the problem that the overall monitoring is complex due to the need for punching for monitoring is reduced, the overall service life is improved, the stop block 3 provided at the end of the first monitoring member 4 is convenient to be clamped in the sealing groove 2 for protection, so that the first monitoring member 4 can be effectively protected when not working, the problem that damage is caused by collision when the detection box 1 moves is avoided, and the service life of the first monitoring member 4 is improved.

[0031] In this embodiment, the gas sprayed by the spray head 14 is monitored by the second monitoring member 15, which ensures that the detected gas can be accurately and stably transmitted to the position of the second monitoring member 15, guarantees the accuracy and timeliness of detection, and specifically as shown Figures 3-6 As shown, a first through hole 9 is opened on the air suction cylinder 5, a second through hole 10 is opened on the conveying cylinder 6, a first sleeve 11 is sleeved outside the conveying cylinder 6, the first sleeve 11 is installed inside the detection box 1, a transmission cylinder 13 is connected with the side end of the moving plate 7 through a pipeline 12 at the side end of the first sleeve 11, a piston of the transmission cylinder 13 is connected with the side end of the moving plate 7, a spray head 14 is connected with the end of the transmission cylinder 13 through the pipeline 12, the spray head 14 is located at the side end of the second monitoring member 15, the second monitoring member 15 is arranged inside the detection box 1, the first through hole 9 on the air suction cylinder 5 is convenient for sucking gas, when the conveying cylinder 6 moves, the second through hole 10 of the conveying cylinder 6 is communicated with the inside of the first sleeve 11, at this time, the gas sucked by the air suction cylinder 5 is convenient for being transmitted through the first sleeve 11, and being conveyed to the inside of the transmission cylinder 13 through the pipeline 12, since the side end of the moving plate 7 is connected with the piston inside the transmission cylinder 13, when the moving plate 7 moves, it is convenient to transmit the gas through the cooperation of the transmission cylinder 13 and the pipeline 12, which reduces the problem of cost increase caused by the need for additional driving, and the gas is sprayed through the spray head 14, a one-way valve structure is arranged on the detection box 1, which reduces the problem that the stability is reduced due to the increase of the inflation in the inside of the detection box 1, avoids the abnormal gas pressure affecting the normal operation of the detection equipment, and further guarantees the stability and reliability of the whole monitoring process, the gas sprayed by the spray head 14 is monitored by the second monitoring member 15, which ensures that the detected gas can be accurately and stably transmitted to the position of the second monitoring member 15, guarantees the accuracy and timeliness of detection.

[0032] In this embodiment, the detection box 1 is firmly fixed in the sintering furnace through the cooperation of the arc block 26, so as to prevent the detection box 1 from being displaced due to vibration during the operation of the sintering furnace, and the specific implementation is as follows Figures 3-7 As shown in the figure, the detection box 1 is provided with a limiting assembly at the side end, the limiting assembly comprises a limiting box 16 installed at the side end of the detection box 1, a motor 17 is arranged inside the detection box 1, a turntable 18 is connected to the output end of the motor 17, the turntable 18 is installed inside the limiting box 16, a tooth block 19 is installed outside the turntable 18, a gear 20 is engagedly connected to the tooth block 19, a rotating shaft 21 is connected through the inside of the gear 20, a second sleeve 22 is arranged outside the rotating shaft 21, the second sleeve 22 is connected to the limiting box 16 through a sealing ring 23, a screw rod 24 is threadedly connected to the inside of the second sleeve 22, the screw rod 24 is connected to the limiting box 16 through a limiting block 25, and an arc block 26 is connected to the end of the screw rod 24. When the detection box 1 is installed, the motor 17 inside the detection box 1 is turned on, so that the turntable 18 inside the limiting box 16 is driven to rotate at the output end of the motor 17, the tooth block 19 on the turntable 18 is driven to rotate, so that the rotating shaft 21 inside the gear 20 is driven to rotate, and the second sleeve 22 is driven to rotate, so that the second sleeve 22 is rotated inside the limiting box 16 through the sealing ring 23, the screw rod 24 inside the second sleeve 22 is lifted and lowered on the limiting block 25, so that the arc block 26 at the end of the screw rod 24 is unfolded, the unfolded arc block 26 is effectively supported on the inner wall of the sintering furnace, the detection box 1 is firmly fixed in the sintering furnace through the cooperation of the arc block 26, and displacement of the detection box 1 due to vibration during the operation of the sintering furnace is prevented, the first monitoring member 4 inside the detection box 1 is always in the best detection position, the accuracy and stability of the monitoring data are improved, and the contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0033] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A kind of vacuum sintering furnace atmosphere purity on-line monitor, including the detection box (1) being set; characterized in that Sealing groove (2) is opened in the surface of the detection box (1), the sealing groove (2) outside is provided with stop block (3), the stop block (3) is connected with first monitoring piece (4), first monitoring piece (4) is connected with moving plate (7) by conveying assembly, the side end of moving plate (7) is provided with telescopic pneumatic cylinder (8), telescopic pneumatic cylinder (8) is installed in the inside of detection box (1).

2. The online monitor for atmosphere purity of a vacuum sintering furnace according to claim 1, characterized in that: The conveying assembly includes suction cylinder (5) installed in the side end of first monitoring piece (4), the side end of suction cylinder (5) is connected in the side end of moving plate (7) by conveying cylinder (6), and suction cylinder (5) is communicated with conveying cylinder (6).

3. The on-line monitor for atmosphere purity in a vacuum sintering furnace according to claim 2, characterized in that: First through-hole (9) is opened in the suction cylinder (5), second through-hole (10) is opened in the conveying cylinder (6).

4. The online monitor for atmosphere purity of a vacuum sintering furnace according to claim 2, characterized in that: The outside of conveying cylinder (6) is equipped with first sleeve (11), first sleeve (11) is installed in the inside of detection box (1), the side end of first sleeve (11) is connected with transmission cylinder (13) by pipeline (12), the piston of transmission cylinder (13) is connected in the side end of moving plate (7).

5. The on-line monitor for atmosphere purity in a vacuum sintering furnace according to claim 4, characterized in that: The end of transmission cylinder (13) is connected with spray head (14) by pipeline (12), spray head (14) is located in the side end of second monitoring piece (15), second monitoring piece (15) is arranged in the inside of detection box (1).

6. The on-line monitor for atmosphere purity in a vacuum sintering furnace according to claim 1, characterized in that: The side end of the detection box (1) is provided with limiting assembly, the limiting assembly includes limiting box (16) installed in the side end of the detection box (1), motor (17) is arranged in the inside of the detection box (1), the output end of motor (17) is connected with turntable (18).

7. The on-line monitor for atmosphere purity in a vacuum sintering furnace according to claim 6, characterized in that: The turntable (18) is installed in the inside of limiting box (16), the outside of turntable (18) is installed with gear block (19), gear block (19) is engaged and connected with gear (20), the inside of gear (20) is connected with rotating shaft (21) penetratingly, the outside of rotating shaft (21) is provided with second sleeve (22), second sleeve (22) is connected on limiting box (16) by sealing ring (23).

8. The on-line monitor for atmosphere purity in a vacuum sintering furnace according to claim 7, characterized in that: Screw rod (24) is screw-connected in the inside of second sleeve (22), screw rod (24) is connected on limiting box (16) by limiting block (25), the end of screw rod (24) is connected with arc block (26).

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