Vacuum sintering furnace capable of rapidly heating and cooling

Abstract

The utility model relates to the technical field of sintering furnaces, and provides a vacuum sintering furnace capable of quickly heating and cooling, which comprises a preheating area, a welding area, a cooling area, at least two gate valves, at least one transmission mechanism and at least one pressing mechanism comprising a bolt sleeve pressure head, the gate valve is arranged at the first end of the preheating area, the welding area and the cooling area are sequentially arranged at the second end of the preheating area, the preheating area, the welding area and the cooling area are communicated or communicated through the gate valve, the conveying mechanisms are arranged on the two sides of the preheating area, the welding area and the cooling area, and the gate valve is arranged at the outlet end of the cooling area. And the pressing mechanisms are arranged in the preheating area, the welding area and the cooling area. And the heating and cooling speed and the product quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of sintering furnace technology, and in particular to a vacuum sintering furnace with rapid heating and cooling. Background Technology

[0002] Existing technology discloses a vacuum sintering furnace capable of continuous production, comprising a furnace body, a feeding and discharging chamber, and a discharging and discharging chamber. The feeding and discharging chamber includes a first door leading to the outside and a second door leading to the furnace body. The discharging and discharging chamber includes a third door leading to the outside and a fourth door leading to the furnace body. The first, second, third, and fourth doors can be opened and closed independently. The first and / or second doors, along with the third and / or fourth doors, can be simultaneously closed to maintain a vacuum state within the furnace body during operation. However, the existing technology has a relatively slow heating and cooling rate. Summary of the Invention

[0003] This invention provides a rapid heating and cooling vacuum sintering furnace to solve the problems in existing technologies where the workpiece is not in contact with the heat-conducting or cooling plate, resulting in slow heating and cooling rates. Furthermore, the movement of the workpiece during welding leads to low weld quality.

[0004] A rapid heating and cooling vacuum sintering furnace includes a preheating zone, a welding zone, a cooling zone, at least two gate valves, at least one transmission mechanism, and at least one clamping mechanism including a bolt sleeve pressure head. The gate valve is provided at the first end of the preheating zone, and the welding zone and cooling zone are sequentially provided at the second end of the preheating zone. The preheating zone, the welding zone, and the cooling zone are connected or connected through the gate valves and the transmission mechanism is provided on both sides. The gate valve is provided at the outlet end of the cooling zone, and the clamping mechanism is provided in the preheating zone, the welding zone, and the cooling zone.

[0005] The vacuum sintering furnace with rapid heating and cooling according to this utility model also includes an inlet zone, which is the previous station area of ​​the preheating zone and is located between the preheating zone and the slide valve.

[0006] The vacuum sintering furnace with rapid heating and cooling according to this utility model also includes an outlet zone, which is the next station zone after the cooling zone and is located between the cooling zone and the slide valve.

[0007] According to the present invention, a vacuum sintering furnace with rapid heating and cooling is provided, wherein the pressing mechanism includes a first mounting plate, a second mounting plate, at least one fixed longitudinal plate, at least one fixed transverse plate, and at least one pressure head; the first mounting plate and the second mounting plate are respectively fixed on both sides of the upper cavity frame of the preheating zone, the welding zone, and the cooling zone; the two ends of the fixed longitudinal plate are fixedly disposed below the first mounting plate and the second mounting plate; the fixed transverse plate is fixedly disposed below the fixed longitudinal plate; and the pressure head is fixedly disposed below the fixed transverse plate.

[0008] According to the vacuum sintering furnace with rapid heating and cooling of this utility model, the fixed horizontal plate and the fixed vertical plate are provided with U-shaped groove through holes adapted to the pressure head of the bolt sleeve, and the pressure head is movably and fixedly disposed in the U-shaped groove through holes.

[0009] The vacuum sintering furnace with rapid heating and cooling according to this utility model also includes at least one guide column, and guide columns are provided below both ends of the fixed longitudinal plate.

[0010] According to the vacuum sintering furnace with rapid heating and cooling of this utility model, the pressure head is an elastic pressure head.

[0011] According to the present invention, in a vacuum sintering furnace with rapid heating and cooling, the transmission mechanism is a gear, chain, and / or belt.

[0012] The vacuum sintering furnace with rapid heating and cooling according to the present invention further includes at least one first lifting mechanism, which is provided below the preheating zone, the welding zone and / or the cooling zone.

[0013] The vacuum sintering furnace with rapid heating and cooling according to the present invention further includes at least one blocking mechanism, which is disposed at the outlet end of the preheating zone, the welding zone and the cooling zone.

[0014] This invention improves the heating and cooling rate of the workpiece by pressing it against the heat-conducting plate or cooling plate using a clamping mechanism. During welding, the clamping mechanism holds the workpiece in place, preventing movement and improving welding quality. The bolts and sleeves have a large and flat bearing area, strong friction, and a secure locking mechanism, ensuring firm clamping of the workpiece and further enhancing welding quality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 Schematic diagram of a vacuum sintering furnace for rapid heating and cooling Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the upper cavity structure;

[0018] Figure 3 Schematic diagram of the clamping mechanism Figure 1 ;

[0019] Figure 4 Schematic diagram of the clamping mechanism Figure 2 ;

[0020] Figure 5 This is a schematic diagram of the pressure head structure;

[0021] Figure 6 This is a schematic diagram of the first lifting mechanism;

[0022] Figure 7 Schematic diagram of a vacuum sintering furnace for rapid heating and cooling Figure 2 ;

[0023] Reference numerals: 1. Inlet area; 2. Preheating area; 3. Welding area; 4. Cooling area; 5. Outlet area; 6. Pressing mechanism; 7. First slide gate valve; 8. First lifting mechanism; 9. Transmission mechanism; 10. Motor; 11. First blocking mechanism; 12. Second blocking mechanism; 13. Second lifting mechanism; 14. Upper cavity frame; 15. Second slide gate valve; 16. First mounting plate; 17. Second mounting plate; 18. Fixed longitudinal plate; 19. Fixed transverse plate; 10. Guide post; 11. Pressure head; 12. Bolt; 13. Sleeve; 14. Nut; 15. Spring plunger. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0027] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0029] The following is combined Figure 1-7 This invention describes a rapid heating and cooling vacuum sintering furnace, comprising a preheating zone 2, a welding zone 3, a cooling zone 4, at least two gate valves, at least one transmission mechanism 42, and at least one clamping mechanism 6. A gate valve, i.e., a first gate valve 11, is provided at the first end of the preheating zone 2. The welding zone 3 and the cooling zone 4 are sequentially arranged at the second end of the preheating zone 2. The preheating zone 2, welding zone 3, and cooling zone 4 are connected or connected via gate valves, and transmission mechanisms 42 are provided on both sides. The transmission mechanisms 42 are driven by a motor 43. A gate valve, i.e., a second gate valve 51, is provided at the outlet end of the cooling zone 4. The clamping mechanism 6 is provided within the preheating zone 2, welding zone 3, and cooling zone 4.

[0030] In this embodiment, an inlet area 1 is also included. The inlet area 1 is the previous station area of ​​the preheating area 2 and is located between the preheating area 2 and the slide gate valve. The slide gate valve is the first slide gate valve 11, and the inlet area 1 may also have a preheating function.

[0031] In the above embodiment, a discharge area 5 is also included. The discharge area 5 is the next working area after the cooling area 4 and is located between the cooling area 4 and the slide gate valve. The slide gate valve is a second slide gate valve 51.

[0032] In the above embodiment, the clamping mechanism 6 includes a first mounting plate 61, a second mounting plate 62, at least one fixed longitudinal plate 63, at least one fixed transverse plate 64, and at least one pressure head 66. The first mounting plate 61 and the second mounting plate 62 are respectively fixed to both sides of the upper cavity frame 47 of the preheating zone 2, the welding zone 3, and the cooling zone 4. The two ends of the fixed longitudinal plate 63 are fixedly disposed below the first mounting plate 61 and the second mounting plate 62. The fixed transverse plate 64 is fixedly disposed below the fixed longitudinal plate 63. A U-shaped support plate is provided at the junction of the fixed longitudinal plate 63 and the fixed transverse plate 64. The fixed transverse plate 64 passes through the U-shaped support plate, and the U-shaped support plate supports the fixed transverse plate 64. The two ends of the U-shaped support plate are fixed to the fixed longitudinal plate 63. Alternatively, the fixed transverse plate 64 and the fixed longitudinal plate 63 can be directly connected by bolts through through holes. The pressure head 66 is fixedly disposed below the fixed transverse plate 64.

[0033] In the above embodiment, U-shaped grooves with through holes are provided on both sides of the fixed horizontal plate 64 and the fixed vertical plate 63. A bolt 661 and a sleeve 662 are provided at the upper end of the pressure head 66. The bolt 661 is movably fixed within the U-shaped groove, the sleeve 662 is fitted on, and then the nut 663 is tightened. A spring plunger 664 is located at the bottom of the pressure head 66 to press the workpiece. During welding, the pressure head 66 of the clamping mechanism presses down on the workpiece, preventing its movement and improving welding quality. The bolt 661 and sleeve 662 have a large and flat force-bearing area, strong friction, and a secure locking mechanism, firmly pressing the workpiece and improving welding quality.

[0034] In the above embodiment, at least one guide post 65 is also included, and guide posts 65 are provided below both ends of the fixed longitudinal plate 63.

[0035] In the above embodiment, the pressure head 66 is an elastic pressure head.

[0036] In the above embodiments, the transmission mechanism 42 is a gear, chain, and / or belt.

[0037] In the above embodiments, at least one first lifting mechanism 41 is also included, which is disposed below the preheating zone 2, the welding zone 3, and / or the cooling zone 4. A second lifting mechanism 46 is disposed above the preheating zone 2.

[0038] In the above embodiments, at least one blocking mechanism is further included, which is disposed at the outlet end of the preheating zone, the welding zone, and the cooling zone. Two blocking mechanisms are disposed at the outlet end, namely a first blocking mechanism 44 and a second blocking mechanism 45.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A vacuum sintering furnace with rapid heating and cooling, characterized in that, It includes a preheating zone, a welding zone, a cooling zone, at least two gate valves, at least one transmission mechanism, and at least one clamping mechanism including a bolt sleeve pressure head; the gate valve is provided at the first end of the preheating zone, the welding zone and the cooling zone are sequentially provided at the second end of the preheating zone, the preheating zone, the welding zone and the cooling zone are connected or connected through the gate valve and the transmission mechanism is provided on both sides, the gate valve is provided at the outlet end of the cooling zone, and the clamping mechanism is provided in the preheating zone, the welding zone and the cooling zone.

2. The vacuum sintering furnace with rapid heating and cooling according to claim 1, characterized in that, It also includes an inlet area, which is the previous station area of ​​the preheating zone and is located between the preheating zone and the gate valve.

3. The vacuum sintering furnace with rapid heating and cooling according to claim 1, characterized in that, It also includes an outlet area, which is the next working area of ​​the cooling zone and is located between the cooling zone and the gate valve.

4. The vacuum sintering furnace with rapid heating and cooling according to claim 1, characterized in that, The clamping mechanism includes a first mounting plate, a second mounting plate, at least one fixed longitudinal plate, at least one fixed transverse plate, and at least one pressure head; the first mounting plate and the second mounting plate are respectively fixed on both sides of the upper cavity frame of the preheating zone, the welding zone, and the cooling zone; the two ends of the fixed longitudinal plate are fixedly disposed below the first mounting plate and the second mounting plate; the fixed transverse plate is fixedly disposed below the fixed longitudinal plate; and the pressure head is fixedly disposed below the fixed transverse plate.

5. The vacuum sintering furnace with rapid heating and cooling according to claim 4, characterized in that, The fixed horizontal plate and the fixed vertical plate are provided with U-shaped groove through holes that are adapted to the pressure head of the bolt sleeve, and the pressure head is movably fixed in the U-shaped groove through hole.

6. The vacuum sintering furnace with rapid heating and cooling according to claim 4, characterized in that, It also includes at least one guide post, with guide posts provided below both ends of the fixed longitudinal plate.

7. The vacuum sintering furnace with rapid heating and cooling according to claim 4, characterized in that, The pressure head is an elastic pressure head.

8. The vacuum sintering furnace with rapid heating and cooling according to claim 1, characterized in that, The transmission mechanism is a gear, chain, and / or belt.

9. The vacuum sintering furnace with rapid heating and cooling according to claim 1, characterized in that, It also includes at least one first lifting mechanism, which is provided below the preheating zone, the welding zone and / or the cooling zone.

10. The vacuum sintering furnace with rapid heating and cooling according to claim 1, characterized in that, It also includes at least one blocking mechanism disposed at the outlet end of the preheating zone, the welding zone and the cooling zone.

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