Feeding device of high-temperature vacuum furnace

Abstract

The utility model provides a high temperature vacuum furnace feeding device, relates to vacuum furnace technical field, including box body, feed pipe and exhaust pipe, box body bottom one side is hinged with the bottom cover through the rotating shaft, box body right side is fixed installation feed pipe, feed pipe right end top is equipped with the hopper, exhaust pipe right end top is equipped with the exhaust pipe, exhaust pipe right end top is equipped with the exhaust pipe, exhaust pipe right end top is equipped with the exhaust pipe, exhaust pipe right end top is equipped with the exhaust pipe. The top of the right side of the box body communicates with an exhaust pipe, an exhaust mechanism matched with the exhaust pipe is arranged on the back side of the box body, and an opening and closing mechanism is arranged between the box body and the bottom cover; when the output end of the air cylinder drives the connecting rod to move upwards, the connecting rod can drive the bottom cover to rotate upwards around the circle center of the rotating shaft, at the moment, the box body and a hearth channel of the high-temperature vacuum furnace are opened, and when the output end of the air cylinder drives the connecting rod to move downwards, the connecting rod can drive the bottom cover to rotate downwards around the circle center of the rotating shaft. The box body and the hearth channel of the high-temperature vacuum furnace are closed, the box body can prevent the feeding pipe and the exhaust pipe from making direct contact with the hearth of the high-temperature vacuum furnace, and the feeding pipe and the exhaust pipe are protected.

Description

Technical Field

[0001] This utility model relates to the field of vacuum furnace technology, and in particular to a feeding device for a high-temperature vacuum furnace. Background Technology

[0002] A high-temperature vacuum furnace is an advanced device that can perform heat treatment on materials under high temperature and vacuum conditions. It uses high-quality high-temperature resistant materials to manufacture the furnace body, and is equipped with a high-efficiency vacuum system and precise temperature control device. It can achieve a high vacuum level and precise temperature control of ±1℃. It is widely used in materials research and development, aerospace, and other fields for processes such as sintering, annealing, and brazing, effectively improving material properties.

[0003] High-temperature metal materials in a vacuum furnace flow into the heating element of the furnace body through the feed pipe. Due to the excessively high temperature inside the heating element (>1200°C), the liquid high-temperature metal materials continuously erode the outlet of the feed pipe. After a period of time, the wall of the feed pipe is penetrated, and the liquid materials spill out and cannot flow to the designated location. Therefore, this utility model proposes a high-temperature vacuum furnace feeding device to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a high-temperature vacuum furnace feeding device to solve the problem of high-temperature metal materials continuously eroding the feed pipe outlet in the prior art.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a high-temperature vacuum furnace feeding device, including a box body, a feeding pipe and a suction pipe, a bottom cover is hinged to one side of the bottom of the box body through a rotating shaft, a feeding pipe is fixedly installed on the right side of the box body, a hopper is provided at the top of the right end of the feeding pipe, a suction pipe is connected to the top of the right side of the box body, and a suction mechanism matching the suction pipe is provided on the back side of the box body, and an opening and closing mechanism is provided between the box body and the bottom cover.

[0006] A further improvement is that the opening and closing mechanism includes a sliding frame, a cylinder, and a connecting rod. The top of the bottom cover is fixedly connected to the sliding frame, the top of the box is fixedly installed with the cylinder, the output end of the cylinder is fixedly connected to the connecting rod, and one end of the connecting rod is inserted into the interior of the sliding frame.

[0007] A further improvement is that: a slope is provided on the right side of the bottom of the box body, a discharge pipe is connected to the bottom of the left end of the feed pipe, the discharge pipe is parallel to the downward position of the slope, and a feeding mechanism is provided on the feed pipe.

[0008] A further improvement is made in that: the feeding mechanism includes a screw and a self-locking motor, the screw is rotatably connected inside the feeding tube, the self-locking motor is fixedly installed at the right end of the feeding tube, and the output end of the self-locking motor is fixedly connected to the right end of the screw.

[0009] A further improvement is that a protective cover is fixedly installed at the right end of the feed pipe, the protective cover is wrapped around the self-locking motor, and multiple anti-collision strips are provided on the outside of the protective cover.

[0010] A further improvement is that the air extraction mechanism includes a vacuum pump, an air supply pipe, and an exhaust pipe. The vacuum pump is fixedly installed on the back side of the housing. The input end of the vacuum pump is connected to the air supply pipe, and one end of the air supply pipe is connected to the top end of the air extraction pipe. The output end of the vacuum pump is connected to the exhaust pipe.

[0011] A further improvement is that: one end of the gas supply pipe is symmetrically threaded with a threaded sleeve, a filter element is provided in the middle of the two threaded sleeves, and the exhaust pipe is designed as an upward-facing curved pipe structure.

[0012] The beneficial effects of this utility model are as follows: When the output end of the cylinder drives the connecting rod to move upward, the connecting rod can drive the bottom cover to rotate upward around the center of the rotation axis, and the connecting rod can slide along the inner wall of the sliding frame, eliminating the interference between the sliding frame and the connecting rod. At this time, the box body and the furnace chamber of the high-temperature vacuum furnace are opened. When the output end of the cylinder drives the connecting rod to move downward, the connecting rod can drive the bottom cover to rotate downward around the center of the rotation axis, sealing the box body and the furnace chamber of the high-temperature vacuum furnace. The box body can prevent the feed pipe and the exhaust pipe from directly contacting the furnace chamber of the high-temperature vacuum furnace, thus protecting the feed pipe and the exhaust pipe. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the inside of the housing of this utility model;

[0014] Figure 2 This is a diagram showing the bottom cover of this utility model in an open state;

[0015] Figure 3 This is a schematic diagram of the feed pipe structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the back of the housing of this utility model.

[0017] The components are: 1. housing; 2. rotating shaft; 3. bottom cover; 4. feed pipe; 5. hopper; 6. exhaust pipe; 7. sliding frame; 8. cylinder; 9. connecting rod; 10. discharge pipe; 11. screw; 12. self-locking motor; 13. vacuum pump; 14. threaded sleeve; 15. filter element; 16. air supply pipe; 17. exhaust pipe; 18. inclined plane. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. It should be noted that structures not described in this utility model, as they do not involve the design points and improvement directions of this utility model, all adopt existing technologies.

[0020] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a high-temperature vacuum furnace feeding device, including a housing 1, a feeding pipe 4, and a vacuum pipe 6. A bottom cover 3 is hinged to one side of the bottom of the housing 1 via a rotating shaft 2. The feeding pipe 4 is fixedly installed on the right side of the housing 1. A hopper 5 is provided at the top of the right end of the feeding pipe 4. The vacuum pipe 6 is connected to the top of the right side of the housing 1, and a vacuuming mechanism matching the vacuum pipe 6 is provided on the back side of the housing 1. An opening and closing mechanism is provided between the housing 1 and the bottom cover 3. The housing 1 is fixedly installed on the outside of the high-temperature vacuum furnace, and the bottom of the housing 1 is connected to the furnace chamber of the high-temperature vacuum furnace. When feeding, the opening and closing mechanism first drives the bottom cover 3 to rotate upward around the rotating shaft 2, which opens the passage between the box 1 and the high-temperature vacuum furnace chamber. The material is then fed into the interior of the high-temperature vacuum furnace chamber through the feed pipe 4. The above operation can be repeated during evacuation. After feeding and evacuation are completed, the opening and closing mechanism drives the rotating shaft 2 to rotate downward, closing the passage between the box 1 and the high-temperature vacuum furnace chamber. This prevents the feed pipe 4 and the evacuation pipe 6 from directly contacting the high-temperature vacuum furnace chamber, thus protecting the feed pipe 4 and the evacuation pipe 6. In addition, the box 1 is made of 304 stainless steel, which has good heat insulation performance.

[0021] In this embodiment, the opening and closing mechanism includes a sliding frame 7, a cylinder 8, and a connecting rod 9. The top of the bottom cover 3 is fixedly connected to the sliding frame 7, and the top of the housing 1 is fixedly installed with the cylinder 8. The output end of the cylinder 8 is fixedly connected to the connecting rod 9. One end of the connecting rod 9 is inserted into the interior of the sliding frame 7. When the output end of the cylinder 8 drives the connecting rod 9 to move upward, the connecting rod 9 can drive the bottom cover 3 to rotate upward around the center of the rotation axis 2, and the connecting rod 9 can slide along the inner wall of the sliding frame 7 to eliminate the interference between the sliding frame 7 and the connecting rod 9. At this time, the housing 1 and the furnace chamber of the high-temperature vacuum furnace are opened. When the output end of the cylinder 8 drives the connecting rod 9 to move downward, the connecting rod 9 can drive the bottom cover 3 to rotate downward around the center of the rotation axis 2, thus closing the housing 1 and the furnace chamber of the high-temperature vacuum furnace. The housing 1 can prevent the feed pipe 4 and the exhaust pipe 6 from directly contacting the furnace chamber of the high-temperature vacuum furnace, thus protecting the feed pipe 4 and the exhaust pipe 6.

[0022] In this embodiment, the bottom right side of the box body 1 is provided with an inclined surface 18, the bottom of the left end of the feed pipe 4 is connected to the discharge pipe 10, the discharge pipe 10 is parallel to the inclined surface 18 downwards, and the feed pipe 4 is provided with a feeding mechanism.

[0023] In this embodiment, the feeding mechanism includes a screw 11 and a self-locking motor 12. The screw 11 is rotatably connected inside the feeding pipe 4, and the self-locking motor 12 is fixedly installed at the right end of the feeding pipe 4. The output end of the self-locking motor 12 is fixedly connected to the right end of the screw 11. The material is fed into the inside of the feeding pipe 4 through the hopper 5. The self-locking motor 12 can drive the screw 11 to rotate inside the feeding pipe 4. The spiral blades on the screw 11 drive the material to move towards the discharge pipe 10. The material is transported to the inside of the box 1 through the discharge pipe 10, and then the material slides down into the inside of the high-temperature vacuum furnace chamber through the inclined surface 18.

[0024] In this embodiment, a protective cover is fixedly installed on the right end of the feed pipe 4. The protective cover wraps around the self-locking motor 12. Multiple anti-collision strips are provided on the outside of the protective cover. The protective cover and anti-collision strips can separate the self-locking motor 12 from external objects, prevent the self-locking motor 12 from directly contacting external objects, and protect the self-locking motor 12.

[0025] In this embodiment, the air extraction mechanism includes a vacuum pump 13, a gas supply pipe 16, and an exhaust pipe 17. The vacuum pump 13 is fixedly installed on the back side of the housing 1. The input end of the vacuum pump 13 is connected to the gas supply pipe 16, and one end of the gas supply pipe 16 is connected to the top end of the extraction pipe 6. The output end of the vacuum pump 13 is connected to the exhaust pipe 17. The vacuum pump 13 is connected to the extraction pipe 6 through the gas supply pipe 16. After the valve on the gas supply pipe 16 is opened, the vacuum pump 13 can extract the internal air of the high-temperature vacuum furnace chamber through the gas supply pipe 16 and the extraction pipe 6, so that the high-temperature vacuum furnace chamber is in a negative pressure state.

[0026] In this embodiment, one end of the gas supply pipe 16 is symmetrically threaded with threaded sleeves 14, and a filter element 15 is provided in the middle of the two threaded sleeves 14. The exhaust pipe 17 is shaped as an upward-facing curved pipe structure. After the two ends of the filter element 15 are connected to the two threaded sleeves 14, the threaded sleeves 14 are rotated to the joint between the threaded sleeves 14 and the filter element 15, so as to install the filter element 15 on the gas supply pipe 16. The filter element 15 plays a role in filtering the gas in the furnace chamber of the high-temperature vacuum furnace, preventing fine particles from entering the interior of the vacuum pump 13 and causing damage to it. The filter element 15 is made of graphite, which has the properties of high temperature resistance and corrosion resistance.

[0027] When the output end of the cylinder 8 drives the connecting rod 9 to move upward, the connecting rod 9 can drive the bottom cover 3 to rotate upward around the center of the rotation axis 2. The connecting rod 9 can also slide along the inner wall of the sliding frame 7, eliminating the interference between the sliding frame 7 and the connecting rod 9. At this time, the box 1 and the furnace chamber of the high-temperature vacuum furnace are opened. When the output end of the cylinder 8 drives the connecting rod 9 to move downward, the connecting rod 9 can drive the bottom cover 3 to rotate downward around the center of the rotation axis 2, sealing the box 1 and the furnace chamber of the high-temperature vacuum furnace. The box 1 can prevent the feed pipe 4 and the exhaust pipe 6 from directly contacting the furnace chamber of the high-temperature vacuum furnace, thus protecting the feed pipe 4 and the exhaust pipe 6.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-temperature vacuum furnace feeding device, comprising a housing (1), a feeding pipe (4), and a vacuum pipe (6), characterized in that: A bottom cover (3) is hinged to one side of the bottom of the box (1) via a rotating shaft (2). A feed pipe (4) is fixedly installed on the right side of the box (1). A hopper (5) is provided at the top of the right end of the feed pipe (4). An air extraction pipe (6) is connected to the top of the right side of the box (1). An air extraction mechanism matching the air extraction pipe (6) is provided on the back side of the box (1). An opening and closing mechanism is provided between the box (1) and the bottom cover (3). The opening and closing mechanism includes a sliding frame (7), a cylinder (8) and a connecting rod (9). The top of the bottom cover (3) is fixedly connected to the sliding frame (7), and the top of the box (1) is fixedly installed with the cylinder (8). The output end of the cylinder (8) is fixedly connected to the connecting rod (9), and one end of the connecting rod (9) is inserted into the interior of the sliding frame (7).

2. The high-temperature vacuum furnace feeding device according to claim 1, characterized in that: The bottom right side of the box (1) is provided with an inclined surface (18), the bottom of the left end of the feed pipe (4) is connected to the discharge pipe (10), the position of the discharge pipe (10) is parallel to the inclined surface (18) downwards, and the feed pipe (4) is provided with a feeding mechanism.

3. The high-temperature vacuum furnace feeding device according to claim 2, characterized in that: The feeding mechanism includes a screw (11) and a self-locking motor (12). The screw (11) is rotatably connected inside the feeding pipe (4). The self-locking motor (12) is fixedly installed at the right end of the feeding pipe (4). The output end of the self-locking motor (12) is fixedly connected to the right end of the screw (11).

4. The high-temperature vacuum furnace feeding device according to claim 3, characterized in that: A protective cover is fixedly installed on the right end of the feed pipe (4), the protective cover is wrapped around the self-locking motor (12), and multiple anti-collision strips are provided on the outside of the protective cover.

5. The high-temperature vacuum furnace feeding device according to claim 1, characterized in that: The air extraction mechanism includes a vacuum pump (13), an air supply pipe (16), and an exhaust pipe (17). The vacuum pump (13) is fixedly installed on the back side of the housing (1). The input end of the vacuum pump (13) is connected to the air supply pipe (16), and one end of the air supply pipe (16) is connected to the top end of the air extraction pipe (6). The output end of the vacuum pump (13) is connected to the exhaust pipe (17).

6. The high-temperature vacuum furnace feeding device according to claim 5, characterized in that: One end of the gas pipe (16) is symmetrically threaded with a threaded sleeve (14), and a filter element (15) is provided in the middle of the two threaded sleeves (14). The exhaust pipe (17) is designed as an upward-facing curved pipe structure.

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