An intelligent sintering furnace for metal product processing

Abstract

The present invention relates to the field of sintering furnaces, and in particular to an intelligent sintering furnace for processing metal products. The present invention provides such an intelligent sintering furnace for processing metal products, comprising a mounting base and a vacuum furnace. The sintering furnace is composed of a vacuum furnace and a sintering chamber. The sintering chamber of the vacuum furnace is provided with a plurality of sliding racks and corresponding carriers in the upper and lower directions. After completing the vacuum sintering of the metal product, the compressed gas is selectively delivered to different air holes through the intelligent air intake control mechanism. The compressed air pushes the sliding rack in turn to drive the sintered product on the carrier forward. At the same time, the blown compressed air can also cool the sintered product on the carrier, thereby accelerating the cooling speed of the sintered product on the carrier. The invention solves the technical problem that a mechanical ejection mechanism is installed in a sintering furnace and is placed in a high temperature environment for a long time, which inevitably leads to a short service life and frequent maintenance of the mechanical ejection mechanism.

Description

Technical Field

[0001] The present invention relates to the field of sintering furnaces, and in particular to an intelligent sintering furnace for processing metal products. Background Art

[0002] In the metal product processing technology, it is necessary to place the metal powder product mixed with the adhesive in a sintering furnace for high-temperature sintering treatment to obtain a high-hardness metal sintered product. Since the temperature inside the sintering furnace is relatively high after the sintering work is completed, the staff will be easily burned by the high-temperature residual heat in the sintering furnace and the residual heat on the sintered product when taking the sintered product out of the sintering furnace. However, due to the high operating temperature of the sintering furnace, neither the compression spring mechanism nor the electronic mechanical mechanism is suitable for installation in the sintering furnace to actively eject the sintered product. Therefore, although the existing equipment is equipped with a mechanical ejection mechanism in the sintering furnace, the mechanical ejection mechanism is in a high-temperature environment for a long time, and it will inevitably have the problems of short service life and frequent maintenance. Summary of the Invention

[0003] In order to overcome the disadvantages of installing a mechanical ejection mechanism in a sintering furnace, which inevitably leads to a short service life and frequent maintenance of the mechanical ejection mechanism in a high temperature environment for a long time, the present invention provides an intelligent sintering furnace for metal product processing.

[0004] An intelligent sintering furnace for metal product processing includes a mounting base, a vacuum furnace, a sintering chamber, a sliding frame, a carrier, a fixed cylinder, a two-way pipeline and an intelligent air intake control mechanism; the mounting base is provided with a vacuum furnace; the vacuum furnace is provided with a furnace cover; a sintering chamber is installed in the vacuum furnace; the sintering chamber is provided with a cabin cover; the sintering chamber is slidably connected to the sliding frame; the sliding frame is connected to the carrier; a fixed flange is fixedly connected to the rear side of the vacuum furnace; a fixed cylinder is fixedly connected to the fixed flange; a gas transmission hole structure corresponding to the number of sliding frames is opened on the fixed cylinder; two-way pipelines corresponding to the number of sliding frames are fixedly connected to the sintering chamber; two outlet ends of the two-way pipelines are respectively aligned with the two sides of the corresponding sliding frame; a gas transmission hole and the corresponding two-way pipeline are commonly connected with a gas transmission pipeline; the fixed cylinder is connected to an intelligent air intake control mechanism for transmitting compressed gas to the gas transmission hole.

[0005] Furthermore, a positioning groove structure for loading the sintered product is provided on the carrier.

[0006] Furthermore, the sliding frame is provided with two groove structures which are respectively aligned with the air outlets on both sides of the bidirectional pipe.

[0007] Furthermore, the sliding frame is provided with two through-hole structures respectively connected to the two grooves.

[0008] Furthermore, the through hole penetrates the sliding frame forward.

[0009] Furthermore, a side hole structure connected to the through hole is opened on the sliding frame.

[0010] Furthermore, the outlet end of the side hole on the sliding frame faces the adjacent carrier plate.

[0011] Furthermore, the rear side of the carrier plate is rotatably connected to the sliding frame via a rotating shaft; and the front side of the carrier plate is locked on the sliding frame via a locking member.

[0012] Furthermore, the locking element is a bolt that is slidably connected to the carrier.

[0013] Furthermore, the intelligent air intake control mechanism includes a rotating gear disc, an intake pipe, an intelligent control motor and a spur gear; the rear end of the fixed cylinder is rotatably connected to the rotating gear disc; the intake pipe is fixed to the rotating gear disc; the intelligent control motor is fixed to the fixed flange; the output shaft of the intelligent control motor is fixed to the spur gear; the spur gear is meshed with the rotating gear disc.

[0014] The present invention describes an intelligent sintering furnace for metal product processing. The sintering furnace comprises a vacuum furnace and a sintering chamber. The sintering chamber of the vacuum furnace is provided with multiple sliding racks and corresponding carriers in the upper and lower directions. After the vacuum sintering of the metal product is completed, an intelligent air intake control mechanism selectively and sequentially delivers compressed gas to different gas delivery holes. The compressed air sequentially pushes the sliding racks, driving the sintered products on the carriers forward. At the same time, the blown compressed air also cools the sintered products on the carriers, accelerating the cooling rate of the sintered products on the carriers. The carriers are ejected from the sintering furnace by a pneumatic ejection method. Compared with a mechanical ejection mechanism, this allows workers to quickly remove the products from the sintering furnace without manually touching the sintering furnace. This not only ensures the safety of workers, but also improves their efficiency in removing products from the sintering furnace. In addition, there is no need to worry about the long-term impact of high-temperature environments on the components related to the pneumatic ejection, effectively extending the service life of the pneumatic ejection components. This solves the technical problem that the mechanical ejection mechanism installed in the sintering furnace is inevitably short in service life and requires frequent maintenance due to long-term high-temperature environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0016] Figure 2 is a cross-sectional view of a vacuum furnace of the present invention;

[0017] Figure 3 is a cross-sectional view of a sintering chamber of the present invention;

[0018] Figure 4 This is a cross-sectional view of the sintering chamber and the fixing cylinder according to the present invention from a first viewing angle;

[0019] Figure 5 A cross-sectional view of the sintering chamber and the fixing cylinder according to the present invention from a second viewing angle;

[0020] Figure 6 It is a schematic diagram of a partial three-dimensional structure of the sliding frame of the present invention;

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of the plug of the present invention.

[0022] The meanings of the reference numerals in the figure are: 1-mounting base, 2-vacuum furnace, 21-furnace cover, 22-fixing flange, 3-sintering chamber, 31-chamber cover, 41-sliding frame, 4101-groove, 4102-through hole, 4103-side hole, 42-carrying plate, 43-plug, 5-fixing cylinder, 501-gas hole, 51-bidirectional pipeline, 52-gas pipeline, 61-rotating gear disc, 62-inlet pipe, 63-intelligent control motor, 64-spur gear. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0024] An intelligent sintering furnace for metal product processing, such as Figure 1-Figure 7 As shown, it includes a mounting base 1, a vacuum furnace 2, a sintering chamber 3, a sliding frame 41, a carrier plate 42, a fixing cylinder 5, a two-way pipe 51 and an intelligent air intake control mechanism; the mounting base 1 is mounted with a vacuum furnace 2; a furnace cover 21 is provided on the front side of the vacuum furnace 2; a sintering chamber 3 is installed in the vacuum furnace 2; a chamber cover 31 is provided on the front side of the sintering chamber 3; a plurality of sliding frames 41 are connected in the sintering chamber 3 in the vertical direction; each sliding frame 41 is connected to a carrier plate 42; a plurality of positioning slots for loading sintered products are provided on the carrier plate 42; the rear side of the vacuum furnace 2 is bolted with A fixed flange 22; a fixed cylinder 5 is fixedly connected to the fixed flange 22; a gas delivery hole 501 structure corresponding to the number of sliding frames 41 is opened on the fixed cylinder 5; a bidirectional pipe 51 corresponding to the number of sliding frames 41 is fixedly connected to the sintering chamber 3; the two outlet ends of each bidirectional pipe 51 are respectively aligned with the left and right sides of the corresponding sliding frame 41; a gas delivery pipe 52 is commonly connected between each gas delivery hole 501 and the corresponding bidirectional pipe 51; an intelligent air intake control mechanism is connected to the fixed cylinder 5, and the intelligent air intake control mechanism selectively delivers compressed gas to different gas delivery holes 501.

[0025] like Figure 6 and Figure 7As shown, a groove 4101 structure is respectively formed on the rear left part and the rear right part of the sliding frame 41 to align with the air outlets on both sides of the bidirectional pipe 51.

[0026] like Figure 2 and Figure 4 As shown, the intelligent air intake control mechanism includes a rotating gear disc 61, an air intake pipe 62, an intelligent control motor 63 and a spur gear 64; the rear end of the fixed cylinder 5 is rotatably connected to the rotating gear disc 61; the air intake pipe 62 passing through the left and right sides is fixedly connected to the rotating gear disc 61; the intelligent control motor 63 is bolted to the fixed flange 22; the output shaft of the intelligent control motor 63 is fixedly connected to the spur gear 64; the spur gear 64 is meshed with the rotating gear disc 61.

[0027] The intelligent sintering furnace for processing metal products of the present invention needs to connect the air inlet pipe 62 to a compressed air machine before use, and then the staff manually pulls out each sliding rack 41 and the carrier plate 42 from the sintering chamber 3. After the staff places the metal products on each carrier plate 42 respectively, the staff pushes each sliding rack 41 and the carrier plate 42 back into the sintering chamber 3, and sets the cabin cover 31 on the sintering chamber 3, and sets the furnace cover 21 on the vacuum furnace 2. The sintering furnace composed of the vacuum furnace 2 and the sintering chamber 3 performs vacuum sintering on the metal products.

[0028] After finishing the vacuum sintering of the metal product, the staff opens the furnace cover 21 and the hatch 31 in turn, and then the external compressed air machine continuously supplies compressed air to the air inlet pipe 62. At the same time, the output shaft of the intelligent control motor 63 intermittently drives the spur gear 64 to rotate, and the spur gear 64 engages the rotating gear plate 61 to rotate, so that the rotating gear plate 61 drives the air inlet pipe 62 to align with the various air delivery holes 501 on the connecting fixed cylinder 5 in turn, and the compressed air is ejected from the two air outlets of the two-way pipe 51 along the air delivery pipe 52 through the air inlet pipe 62 and the connected air delivery holes 501. The compressed air ejected from the air outlet of the two-way pipe 51 pushes the sliding rack 41 to drive the carrier 42 to be pushed forward from the sintering chamber 3. In this process, the sliding rack 41 and the chute of the sintering chamber 3 will be connected to the sintering chamber 3, and part of the compressed air ejected from the air outlet of the two-way pipe 51 will be blown into the sintering chamber 3, and part of the compressed air blown into the inside of the sintering chamber 3 The air will cool the sintered products on the carrier 42, accelerating the cooling rate of the sintered products on the carrier 42. At the same time, part of the compressed air ejected from the air outlet of the two-way pipe 51 will be blown into the inside of the sintering chamber 3, resulting in the compressed air being unable to continuously and completely blow on the rear side of the sliding rack 41. The sliding rack 41 will experience a setback during the forward pushing process. Therefore, a groove structure 4101 is provided on the sliding rack 41, so that most of the compressed air ejected from the air outlet of the two-way pipe 51 continues to accumulate in the groove 4101 on the rear side of the sliding rack 41, so that the continuously accumulated part of the compressed air can effectively maintain the pushing effect on the sliding rack 41, and avoid the ejected compressed air from contacting the sliding rack 41 in a discontinuous state. In this way, after the ejected compressed air continues to accumulate in the groove 4101, the sliding rack 41 will be continuously pushed forward by the compressed air, effectively reducing the above-mentioned setback phenomenon.

[0029] When the compressed air pushes the carriers 42 on each sliding rack 41 forward from the sintering chamber 3 in turn, the staff can use heat-insulating gloves to take out the sintered products on each carrier 42 in turn without touching the sintering chamber 3, avoiding burns when the staff touches the sintering chamber 3 and manually pulls out the sliding rack 41. The carrier is pushed out of the sintering furnace by pneumatic ejection. Compared with the mechanical ejection mechanism that pushes the carrier out of the sintering furnace, the staff can quickly take out the product without manually touching the sintering furnace, which not only ensures the safety of the staff, but also improves the work efficiency of the staff in taking out the product from the sintering furnace. In addition, there is no need to worry about the pneumatic ejection-related components being affected by the high temperature environment for a long time, which effectively improves the service life of the pneumatic ejection-related components. Example 2

[0030] like Figure 1-Figure 7As shown, on the basis of Example 1, a through hole 4102 structure connected to the two grooves 4101 is respectively provided on the left and right sides of the sliding frame 41 of this embodiment; the through hole 4102 penetrates the sliding frame 41 forward, and part of the gas in the ejected compressed air will be discharged forward to the outside air in advance through the through hole 4102, so that the thrust of the ejected compressed air on the sliding frame 41 is slowed down, so that the sliding frame 41 is pushed forward in a stable and slow state, and the sliding frame 41 is prevented from being pushed out too fast, which may cause the sintered products loaded on the carrier 42 of the sliding frame 41 to be violently impacted and damaged; a plurality of side holes 4103 structures connected to the through holes 4102 are provided on the sliding frame 41; the outlet ends of the side holes 4103 on the sliding frame 41 are all facing the adjacent carrier 42, and part of the compressed air flowing through the through hole 4102 will be ejected from the outlet end of the side hole 4103 to the carrier 42, so as to further accelerate the cooling speed of the carrier 42 and the sintered products loaded thereon. Example 3

[0031] like Figure 1-Figure 7 As shown, on the basis of Example 1, the rear side of the carrier 42 of this embodiment is connected to the sliding frame 41 through a rotating shaft; the front side of the carrier 42 is slidably connected with a plug 43, and the left end of the plug 43 is initially inserted into the sliding frame 41, so that the carrier 42 is locked on the sliding frame 41. After the staff wears heat-insulating gloves and pulls the plug 43 to the right to complete the unlocking, the front side of the carrier 42 will flip downward around the rotating shaft on the rear side under the action of gravity and become an inclined state. At this time, the staff will place the loading tray they carry under the carrier 42, and the staff will wear heat-insulating gloves and manually move the sintered products downward along the inclined carrier 42 to the loading tray carried by the staff. There is no need for the staff to manually pick up and store the sintered products one by one, which speeds up the unloading operation of the sintered products to a certain extent.

[0032] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall equally within the scope limited by the appended claims of the application.

Claims

1. An intelligent sintering furnace for processing metal products, comprising: a mounting base (1); A vacuum furnace (2) is mounted on the mounting base (1); the vacuum furnace (2) is provided with a furnace cover (21); a sintering chamber (3) is mounted in the vacuum furnace (2); the sintering chamber (3) is provided with a chamber cover (31); Its characteristics are: Also included is a sliding frame (41); The sintering chamber (3) is slidably connected to a sliding frame (41); the sliding frame (41) is connected to a carrier plate (42); a fixed flange (22) is fixedly connected to the rear side of the vacuum furnace (2); a fixed cylinder (5) is fixedly connected to the fixed flange (22); a gas delivery hole (501) structure corresponding in number to the sliding frame (41) is opened on the fixed cylinder (5); a bidirectional pipe (51) corresponding in number to the sliding frame (41) is fixedly connected to the sintering chamber (3); two outlet ends of the bidirectional pipe (51) are respectively aligned with two sides of the corresponding sliding frame (41); a gas delivery pipe (52) is commonly connected between the gas delivery hole (501) and the corresponding bidirectional pipe (51); an intelligent air intake control mechanism for delivering compressed gas to the gas delivery hole (501) is connected to the fixed cylinder (5); The sliding frame (41) is provided with two grooves (4101) respectively aligned with the air outlets on both sides of the bidirectional pipe (51); The sliding frame (41) is provided with two through-holes (4102) respectively connected to the two grooves (4101); The through hole (4102) extends forward through the sliding frame (41); The sliding frame (41) is provided with a side hole (4103) structure connected to the through hole (4102); The intelligent air intake control mechanism comprises a rotating toothed disc (61); the rear end of the fixed cylinder (5) is rotatably connected to the rotating toothed disc (61); an air intake pipe (62) is fixedly connected to the rotating toothed disc (61); an intelligent control motor (63) is fixedly connected to the fixed flange (22); an output shaft of the intelligent control motor (63) is fixedly connected to a spur gear (64); and the spur gear (64) is meshed with the rotating toothed disc (61).

2. The intelligent sintering furnace for metal product processing according to claim 1, characterized in that: A positioning groove structure for loading the sintered product is provided on the carrier plate (42).

3. The intelligent sintering furnace for metal product processing according to claim 1, characterized in that: The outlet end of the upper side hole (4103) of the sliding frame (41) faces the adjacent carrier plate (42).

4. The intelligent sintering furnace for metal product processing according to claim 1, characterized in that: The rear side of the carrier plate (42) is rotatably connected to the sliding frame (41) via a rotating shaft; the front side of the carrier plate (42) is locked on the sliding frame (41) via a locking member.

5. The intelligent sintering furnace for metal product processing according to claim 4, characterized in that: The locking element is a plug (43) which is slidably connected to the carrier plate (42).

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