Vacuum degreasing sintering furnace

Abstract

The utility model relates to the technical field of sintering furnaces, and discloses a vacuum degreasing sintering furnace which comprises a sintering furnace body, the top of the sintering furnace body is fixedly communicated with an exhaust pipe, the inside of the exhaust pipe is fixedly connected with a filter screen, and a cleaning assembly comprises a fixing plate fixedly connected to the exhaust pipe. The upper portion of one side of the fixing plate is rotationally connected with a screw pipe, the screw pipe is in threaded connection with a lead screw, the upper portion of the other side of the fixing plate is movably connected with a movable plate, the movable plate is fixedly connected with the lead screw, the outer portion of a pipe opening of the exhaust pipe is movably connected with a sealing cover, and a scraping plate is arranged on one side of the filter screen. Vertical rods are fixedly connected to the top of the sealing cover and the top of the scraping plate, and connecting rods are symmetrically hinged between the vertical rods and the movable plate through hinge pieces. According to the utility model, the problem that environmental pollution is easily caused due to the fact that oil drops and smoke dust in exhausted gas are difficult to remove is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering furnaces, in particular to a vacuum degreasing sintering furnace. Background Art

[0002] The Vacuum Debinding and Sintering Furnace is a process testing instrument used in materials science and metallurgical engineering. It is primarily used for debinding and sintering metal-based powder metallurgy products. Its operating principle is to complete the debinding and sintering processes in a single sintering process, divided into a low-temperature debinding and holding stage and a high-temperature sintering stage.

[0003] The Chinese utility model patent with the announcement number CN221018668U discloses a vacuum degreasing and sintering furnace for high-temperature processing of materials. The device drives the worm to rotate by the rotation of the motor, the worm rotation drives the worm wheel rotation, the worm wheel rotation drives the screw to rotate, the screw rotation drives the screw sleeve to move to the left along the limit rod, and the L-shaped clamping block is driven by the action of the rotating block and the rotating frame to rotate counterclockwise into the clamping groove, thereby fixing the cover plate. The above operation can be reversed to open, replacing the existing manual exhaust method, thereby achieving the effect of facilitating exhaust. With respect to the above-mentioned related technology, the inventor believes that there are the following defects:

[0004] In actual use, the device lacks an integrated mechanism for removing oil droplets and smoke from the exhaust gas, which easily causes environmental pollution and reduces the practicality of the device. For this reason, we provide a vacuum degreasing sintering furnace. Utility Model Content

[0005] In order to solve the problem in the above background technology that it is difficult to remove oil droplets and smoke in the exhaust gas, which easily causes environmental pollution, the utility model provides a vacuum degreasing sintering furnace.

[0006] The utility model adopts the following technical solutions to achieve: a vacuum degreasing sintering furnace, comprising:

[0007] The sintering furnace body, the top of which is fixedly connected to an exhaust pipe, the interior of which is fixedly connected to a filter screen, and a valve is added to one end of the exhaust pipe close to the sintering furnace body;

[0008] The cleaning component includes a fixed plate fixedly connected to the exhaust pipe, a screw tube is rotatably connected to the upper part of one side of the fixed plate, a screw rod is threadedly connected to the screw tube, a movable plate is movably connected to the upper part of the other side of the fixed plate, and the movable plate and the screw rod are fixedly connected, a cover is movably connected to the outside of the pipe mouth of the exhaust pipe, a scraper is provided on one side of the filter screen, the cover and the top of the scraper are fixedly connected to a vertical rod, and a connecting rod is symmetrically hinged between the vertical rod and the movable plate through a hinge.

[0009] As a further improvement of the above solution, a sewage outlet is provided at the bottom of the exhaust pipe, and a blocking cover is rotatably connected to the outside of the sewage outlet via a rotating shaft. Gears are coaxially fixedly connected to both ends of the rotating shaft, and two sets of tooth plates are symmetrically fixedly connected to the outside of the vertical rod on one side, and the tooth plates are meshed with the gears on the same side.

[0010] As a further improvement of the above solution, a motor is fixedly connected to the fixed plate, and the outside of the rotor of the motor and the outside of the solenoid are fixedly sleeved with gear rings, and the gear rings are meshed and connected.

[0011] As a further improvement of the above solution, two sets of guide grooves are symmetrically fixedly connected on the fixed plate and the outside of the exhaust pipe mouth, and two sets of guide slides are symmetrically fixedly connected on the movable plate and the cover, and the guide slides are slidably connected to the guide grooves.

[0012] As a further improvement of the above solution, the length of the scraper is consistent with the length of the filter screen.

[0013] As a further improvement of the above solution, a sealing gasket 1 is fixedly connected to one side of the cover.

[0014] As a further improvement of the above solution, a sealing ring is provided on the sewage outlet, and a second sealing gasket is provided on the top of the blocking cover.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model starts the motor and, under the meshing action of the gear rings, drives the screw tube to rotate, utilizes the threaded connection between the screw tube and the lead screw and the sliding cooperation between the guide slide bar and the guide slide groove, so as to push the movable plate to move, and cooperates with the hinge action between the movable plate, the vertical rod and the connecting rod, so as to drive the sealing cover and the scraper to move downward, thereby facilitating the opening of the exhaust pipe and cleaning the surface of the filter screen. The filter screen provided can filter the oil droplets and smoke dust in the exhaust gas to prevent them from polluting the environment. Conversely, by starting the motor in reverse, the sealing cover and the scraper can be driven to move upward, thereby facilitating the closing of the exhaust pipe and scraping off the oil droplets and smoke dust attached to the surface of the filter screen again, thereby avoiding clogging of the filter screen.

[0017] 2. The utility model not only pushes the scraper to move downward to remove the oil droplets and smoke attached to the surface of the filter, but also drives the two sets of tooth plates to move downward together. Under the meshing action between the tooth plates and the gears, it drives the cover to rotate to open the sewage outlet, thereby facilitating the discharge of the oil, smoke and dust scraped off and falling on the cover into the exhaust pipe, further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the vertical cross-section of the exhaust pipe of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the cleaning component of the utility model;

[0021] Figure 4 for Figure 3 A in the middle is an enlarged structural diagram;

[0022] Figure 5 It is a three-dimensional schematic diagram of the connection structure of the blocking cover of the present invention.

[0023] Description of main symbols:

[0024] 1. Sintering furnace body; 2. Exhaust pipe; 3. Filter; 4. Gear ring; 5. Guide chute; 101. Fixed plate; 102. Screw tube; 103. Screw rod; 104. Moving plate; 105. Sealing cover; 106. Scraper; 107. Vertical rod; 108. Connecting rod; 201. Stop cover; 202. Gear; 203. Tooth plate. DETAILED DESCRIPTION

[0025] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example

[0026] Please combine Figure 1-5 A vacuum degreasing sintering furnace according to this embodiment includes:

[0027] The sintering furnace body 1 has an exhaust pipe 2 fixedly connected to the top of the sintering furnace body 1, a filter 3 fixedly connected to the inside of the exhaust pipe 2, and a valve is added to the end of the exhaust pipe 2 close to the sintering furnace body 1;

[0028] The cleaning component includes a fixed plate 101 fixedly connected to the exhaust pipe 2, a screw 102 is rotatably connected to the upper part of one side of the fixed plate 101, a screw 103 is threadedly connected to the screw 102, a movable plate 104 is movably connected to the upper part of the other side of the fixed plate 101, and the movable plate 104 and the screw 103 are fixedly connected, a cover 105 is movably connected to the outside of the pipe mouth of the exhaust pipe 2, a scraper 106 is provided on one side of the filter screen 3, the top of the cover 105 and the scraper 106 are fixedly connected to a vertical rod 107, and a connecting rod 108 is symmetrically hinged between the vertical rod 107 and the movable plate 104 through a hinge. A motor is fixedly connected to the plate 101, and the outside of the motor's rotor and the outside of the spiral tube 102 are fixedly sleeved with a gear ring 4, and the gear rings 4 are meshed with each other. Two groups of guide grooves 5 are symmetrically fixedly connected to the fixed plate 101 and the outside of the pipe mouth of the exhaust pipe 2, and two groups of guide slides are symmetrically fixedly connected to the movable plate 104 and the cover 105, and the guide slides are slidably connected to the guide slides 5, which can play a certain guiding role in the horizontal movement of the movable plate 104 and the vertical movement of the cover 105. The length of the scraper 106 is consistent with the length of the filter 3, which can ensure the thoroughness of the cleaning of the filter 3.

[0029] A sewage outlet is provided at the bottom of the exhaust pipe 2, and a blocking cover 201 is rotatably connected to the outside of the sewage outlet via a rotating shaft. Gears 202 are coaxially fixedly connected to both ends of the rotating shaft. Two sets of tooth plates 203 are symmetrically fixedly connected to the outside of the vertical rod 107 on one side, and the tooth plates 203 are meshed with the gears 202 on the same side.

[0030] The implementation principle of a vacuum degreasing sintering furnace in the embodiment of the present application is as follows: when the gas in the sintering furnace body 1 needs to be discharged, the motor is started, and the meshing action between the gear rings 4 can drive the screw tube 102 to rotate, and the threaded connection between the screw tube 102 and the screw rod 103 and the sliding cooperation between the guide slide bar and the guide slide groove 5 can be used to push the movable plate 104 to move, and the hinged action between the movable plate 104 and the vertical rod 107 and the connecting rod 108 can drive the cover 105 and the scraper 106 to move downward, so as to facilitate the opening of the exhaust pipe 2 and the cleaning of the surface of the filter screen 3. At the same time, in the process of pushing the scraper 106 downward to remove the oil droplets and smoke attached to the surface of the filter screen 3, the two sets of tooth plates 203 can also be driven to move downward together, and the tooth plates 203 and the gear 202 can be used to remove the oil droplets and smoke attached to the surface of the filter screen 3. The meshing action between them enables the cover 201 to rotate and open the drain outlet, thereby facilitating the discharge of the oily smoke and dust scraped off and falling on the cover 201 into the exhaust pipe 2. When the exhaust pipe 2 is fully opened, the scraper 106 just moves into the drain outlet to seal the drain outlet, and by opening the valve, the gas in the sintering furnace body 1 is easily discharged. The filter 3 provided can filter the smoke and oil droplets in the gas. When the exhaust is completed, the motor can be controlled to reverse. At this time, the scraper 106 and the cover 105 will automatically move up to close the exhaust pipe 2 and scrape off the oily smoke and dust attached to the surface of the filter 3 again. The scraped oil will fall on the cover 201, and when the drain outlet is opened next time, the oil will be automatically discharged. When the scraper 106 and the cover 105 are fully reset, the cover 201 just seals the drain outlet. Example

[0031] Based on Example 1, this embodiment has further improvements in that: a sealing gasket 1 is fixedly connected to one side of the cover 105, a sealing ring is added to the sewage outlet, and a sealing gasket 2 is provided on the top of the blocking cover 201, which can ensure the sealing of the cover 105 on the exhaust pipe 2 pipe mouth and the scraper 106 on the sewage outlet. The sealing gasket 2 can ensure the sealing effect when the blocking cover 201 blocks the sewage outlet.

[0032] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A vacuum degreasing sintering furnace, characterized in that: include: A sintering furnace body (1), wherein the top of the sintering furnace body (1) is fixedly connected to an exhaust pipe (2), the interior of the exhaust pipe (2) is fixedly connected to a filter screen (3), and a valve is added to one end of the exhaust pipe (2) close to the sintering furnace body (1); A dirt cleaning assembly comprises a fixed plate (101) fixedly connected to an exhaust pipe (2); a screw tube (102) is rotatably connected to an upper portion of one side of the fixed plate (101); a screw rod (103) is threadedly connected to the screw tube (102); a movable plate (104) is movably connected to an upper portion of the other side of the fixed plate (101); and the movable plate (104) and the screw rod (103) are fixedly connected; a cover (105) is movably connected to the outside of the pipe mouth of the exhaust pipe (2); a scraper (106) is provided on one side of the filter screen (3); the tops of the cover (105) and the scraper (106) are fixedly connected to a vertical rod (107); and a connecting rod (108) is symmetrically hinged between the vertical rod (107) and the movable plate (104) via a hinge.

2. A vacuum degreasing sintering furnace according to claim 1, characterized in that: A sewage outlet is provided at the bottom of the exhaust pipe (2), and a blocking cover (201) is rotatably connected to the outside of the sewage outlet via a rotating shaft. Gears (202) are coaxially fixedly connected to both ends of the rotating shaft. Two sets of toothed plates (203) are symmetrically fixedly connected to the outside of the vertical rod (107) on one side, and the toothed plates (203) are meshedly connected to the gears (202) on the same side.

3. A vacuum degreasing sintering furnace according to claim 1, characterized in that: A motor is fixedly connected to the fixed plate (101), and the outside of the rotor of the motor and the outside of the solenoid (102) are both fixedly sleeved with gear rings (4), and the gear rings (4) are meshed and connected with each other.

4. A vacuum degreasing sintering furnace according to claim 1, characterized in that: Two sets of guide slots (5) are symmetrically fixedly connected on the fixed plate (101) and the outside of the pipe mouth of the exhaust pipe (2), and two sets of guide slides are symmetrically fixedly connected on the movable plate (104) and the cover (105), and the guide slides are slidably connected to the guide slots (5).

5. The vacuum degreasing sintering furnace according to claim 1, characterized in that: The length of the scraper (106) is consistent with the length of the filter screen (3).

6. The vacuum degreasing sintering furnace according to claim 1, characterized in that: A sealing gasket 1 is fixedly connected to one side of the sealing cover (105).

7. The vacuum degreasing sintering furnace according to claim 2, characterized in that: A sealing ring is provided on the sewage outlet, and a second sealing gasket is provided on the top of the blocking cover (201).

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