A powder metallurgy drying equipment for metal product production

Abstract

The present application relates to the technical field of powder metallurgy, and in particular to a powder metallurgy drying device for the production of metal products, including an electric heating cylinder, an electric heating column, a cylinder cover, a motor I, a partition I and a flexible drying frame, etc.; the electric heating column is rotatably connected to the middle of the electric heating cylinder; the cylinder cover is detachably connected to the electric heating cylinder; the motor I is fixedly connected to the lower side of the electric heating cylinder; the output shaft of the motor I is fixedly connected to the electric heating column; the partition I is fixedly connected to the outer surface of the electric heating column; and the flexible drying frame is fixedly connected to the right side of the partition I. The present invention uses a flexible drying frame to load metal powder instead of using a storage cylinder to load metal powder in the prior art, so that more powder can be loaded, space is prevented from being wasted, and drying efficiency is reduced; after drying is completed, the cracks in the lower left and lower right parts of the flexible drying frame are opened to unload materials, so that there is no need to operate each storage cylinder separately, and the operation is simple.

Description

Technical Field

[0001] The present application relates to the technical field of powder metallurgy, and in particular to a powder metallurgy drying device for producing metal products. Background Art

[0002] Chinese patent: CN113686123A proposes a powder metallurgy drying device for metal product production; it adds a flexible drying belt in a drying chamber formed by a drying outer cylinder and a drying inner cylinder, and a plurality of storage cylinders for loading metal powder are arranged on the flexible drying belt, and the plurality of storage cylinders are dried in different areas. When the drying is completed, the flexible drying belt is pulled outward, and the plurality of storage cylinders are exposed outside the drying chamber, which can realize ventilation and heat dissipation of the storage cylinders and shorten the cooling time of the metal powder, and the metal powder in the storage cylinders can be easily led out without opening the drying device, thereby saving energy and loss; however, the method of arranging a plurality of storage cylinders for loading metal powder on the flexible drying belt wastes a lot of space between the storage cylinders, thereby significantly reducing the overall drying efficiency; in addition, each time the powder is filled and taken out, each storage cylinder needs to be operated separately, which is cumbersome and time-consuming. Summary of the invention

[0003] In order to overcome the disadvantage of the prior art that a plurality of storage barrels for loading metal powder are arranged on a flexible drying belt, which wastes a lot of space between the storage barrels, the present invention provides a powder metallurgy drying device for metal product production.

[0004] The technical scheme is as follows: A powder metallurgy drying equipment for metal product production, including an electric heating cylinder, an electric heating column and a cylinder cover; the electric heating cylinder is rotatably connected to the middle part; the electric heating cylinder is detachably connected to the cylinder cover; it also includes a motor I, a partition I, a flexible drying frame, a partition II, a mounting frame I, a transmission shaft, a motor II, a pull rope and a partition III; the lower side of the electric heating cylinder is fixedly connected to the motor I; the output shaft of the motor I is fixedly connected to the electric heating column; the outer surface of the electric heating column is fixedly connected to the partition I; the partition A flexible drying frame is fixedly connected to the right side of plate I; a number of cracks are respectively provided on the lower left and right parts of the flexible drying frame; a partition II is fixedly connected to the right side of the flexible drying frame; a mounting frame I is arranged on the right side of the electric heating cylinder; a transmission shaft is rotatably connected to the mounting frame I; a motor II is fixedly connected to the mounting frame I; the output shaft of motor II is fixedly connected to the transmission shaft; a number of pull ropes are wound on the transmission shaft; the left ends of all the pull ropes are fixedly connected to the partition II; a partition III is fixedly connected inside the electric heating cylinder; the partition III is in contact with the electric heating column.

[0005] Preferably, a flexible drying rod is also included; a plurality of flexible drying rods are fixedly connected in the flexible drying frame.

[0006] Preferably, a support plate is further included; two support plates are fixedly connected to the left side of the mounting frame I; and the partition plate II is located between the two support plates.

[0007] Preferably, the left portion of the support plate is arranged to be inclined.

[0008] Preferably, the thickness of the lower left and right parts of the flexible drying frame is smaller than the thickness of the remaining parts.

[0009] Preferably, a flexible stopper is also included; a flexible stopper which is inclined is fixedly connected to the left side and the right side of the flexible drying frame respectively.

[0010] Preferably, the lifting mechanism comprises a mounting frame II, a cylinder I and a lifting block; a mounting frame II is arranged below the flexible drying frame; a cylinder I is fixedly connected to the upper side of the mounting frame II; and a lifting block is fixedly connected to the telescopic end of the cylinder I.

[0011] Preferably, the top block is configured to be conical.

[0012] Preferably, the top of the conical top block is configured to be arc-shaped.

[0013] Preferably, the lifting mechanism also includes a cylinder II and a limit plate; a cylinder II is fixedly connected to the front and rear of the mounting frame II respectively; and a limit plate is fixedly connected to the telescopic ends of the two cylinders II respectively.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention loads metal powder through a flexible drying frame, instead of using a storage tube to load metal powder in the prior art, so that more powder can be loaded, and space waste is prevented, and the drying efficiency is reduced; after drying is completed, the cracks at the lower left and lower right parts of the flexible drying frame are opened for unloading, so there is no need to operate each storage tube separately, and the operation is simple.

[0015] 2. In order to facilitate the opening of the cracks, the thickness of the lower left and lower right parts of the flexible drying frame is smaller than that of the other parts. In order to prevent the powder from pressing down and causing the cracks to open, which in turn causes the powder to be exposed and spilled on the ground when no collection box is placed at the lower left and lower right parts of the flexible drying frame, a flexible block is arranged above the crack to bear a part of the powder above the crack, thereby reducing the pressure of the powder pressing down on the left and right parts of the flexible drying frame, thereby preventing the cracks from opening; the flexible block is arranged in a triangular shape to enhance its stability and prevent the flexible block from being deformed up and down due to the downward pressure of the powder and losing the ability to bear the powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the powder metallurgy drying equipment for producing metal products of the present invention from a first viewing angle;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the powder metallurgy drying equipment for producing metal products of the present invention from a second viewing angle;

[0018] Figure 3It is a schematic diagram of the three-dimensional structure of the mounting frame I, the transmission shaft and the motor II of the powder metallurgy drying equipment for producing metal products of the present invention;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the flexible stopper of the powder metallurgy drying equipment for metal product production of the present invention;

[0020] Figure 5 A sectional view of the three-dimensional structure of a flexible drying frame of a powder metallurgy drying device for producing metal products of the present invention;

[0021] Figure 6 It is a partial three-dimensional structural schematic diagram of the working state of the powder metallurgy drying equipment for producing metal products of the present invention;

[0022] Figure 7 It is a top view of the partial structure of the powder metallurgy drying equipment for producing metal products of the present invention in working state;

[0023] Figure 8 The present invention is a schematic diagram of the three-dimensional structure of the mounting frame II, cylinder I, top block, cylinder II and limit plate of the powder metallurgy drying equipment for metal product production of the present invention.

[0024] Explanation of the accompanying drawings: 1-electric heating cylinder, 2-electric heating column, 3-cylinder cover, 4-motor I, 5-partition I, 6-flexible drying frame, 6a-crack, 7-partition II, 8-mounting frame I, 9-transmission shaft, 10-motor II, 11-pull rope, 12-partition III, 13-flexible drying rod, 14-flexible stopper, 15-support plate, 21-mounting frame II, 22-cylinder I, 23-top block, 24-cylinder II, 25-limiting plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0026] Example 1

[0027] A powder metallurgy drying equipment for metal product production, such as Figure 1-8 As shown, it includes an electric heating cylinder 1, an electric heating column 2 and a cylinder cover 3; the electric heating column 2 is rotatably connected to the middle of the electric heating cylinder 1; the cylinder cover 3 is detachably connected to the electric heating cylinder 1;

[0028] It also includes a motor Ⅰ4, a partition Ⅰ5, a flexible drying frame 6, a partition Ⅱ7, a mounting frame Ⅰ8, a transmission shaft 9, a motor Ⅱ10, a pull rope 11 and a partition Ⅲ12; the motor Ⅰ4 is bolted to the lower side of the electric heating cylinder 1; the output shaft of the motor Ⅰ4 is fixedly connected to the electric heating column 2; the outer surface of the electric heating column 2 is fixedly connected to the partition Ⅰ5; the right side of the partition Ⅰ5 is fixedly connected to the flexible drying frame 6, and the flexible drying frame 6 is made of a deformable material with high thermal conductivity, such as modified silicone rubber with high thermal conductivity; the flexible drying frame 6 has five cracks 6a on the lower left and lower right parts respectively, and the flexible drying A lifting mechanism for lifting and deforming the middle position of the bottom of the flexible drying frame 6 is arranged below the drying frame 6; a partition plate Ⅱ7 is fixedly connected to the right side of the flexible drying frame 6; a mounting frame Ⅰ8 is arranged on the right side of the electric heating tube 1; a transmission shaft 9 is rotatably connected to the mounting frame Ⅰ8; a motor Ⅱ10 is bolted to the mounting frame Ⅰ8; the output shaft of the motor Ⅱ10 is fixedly connected to the transmission shaft 9; two pull ropes 11 are wound on the outer surface of the transmission shaft 9; the left ends of all the pull ropes 11 are fixedly connected to the partition plate Ⅱ7 together; a partition plate Ⅲ12 is welded inside the electric heating tube 1; the partition plate Ⅲ12 is in contact with the electric heating column 2.

[0029] It also includes a flexible drying rod 13; a plurality of flexible drying rods 13 are fixedly connected to the flexible drying frame 6, and the flexible drying rods 13 are made of a deformable material with high thermal conductivity, such as modified silicone rubber with high thermal conductivity.

[0030] It also includes a support plate 15; two support plates 15 are welded to the left side of the mounting frame I8; and the partition plate II7 is located between the two support plates 15.

[0031] In order to facilitate the partition II 7 to move to the right and be placed between the two support plates 15, the left part of the support plate 15 is arranged to be inclined.

[0032] The first step: when in use, the powder to be dried is manually loaded into the flexible drying frame 6. The present invention loads the metal powder through the flexible drying frame 6, instead of using the storage tube to load the metal powder in the prior art, so that more powder can be loaded. Then, based on the view from top to bottom, the motor I4 is controlled to drive the electric heating column 2 to rotate clockwise, and the rotation of the electric heating column 2 drives the partition I5 and the flexible drying frame 6 to rotate, so that the flexible drying frame 6 is rolled into the annular space between the electric heating cylinder 1 and the electric heating column 2. In this process, the motor II 10 is controlled to drive the transmission shaft 9 to rotate to continuously release the pull rope 11 to prevent the pull rope 11 from pulling the partition II 7 and the flexible drying frame 6. Finally, the partition I5 contacts the partition III 12, and the partition II 7 contacts the partition III 12 and the flexible drying frame 6. Figure 7 As shown, the flexible drying frame 6 is bent into a ring shape and is completely located in the annular space between the electric heating cylinder 1 and the electric heating column 2. The annular space is closed by the partition II 7, the partition III 12 and the cylinder cover 3 to prevent heat loss.

[0033] Step 2: Power on the electric heating cylinder 1 and the electric heating column 2. After the electric heating cylinder 1 is powered on, its inner wall generates heat to heat the outer side of the flexible drying frame 6. After the electric heating column 2 is powered on, its outer wall generates heat to heat the inner side of the flexible drying frame 6. After the inner and outer sides of the flexible drying frame 6 are heated, the heat is transferred to the powder it receives, thereby heating and drying the powder. A plurality of flexible drying rods 13 are fixedly connected to the flexible drying frame 6. The flexible drying frame 6 transfers the heat to the flexible drying rods 13, and the flexible drying rods 13 transfer the heat to the powder in the middle, thereby increasing the heating area of ​​the powder and accelerating the drying speed.

[0034] Step 3: After the drying is completed, the power supply of the electric heating cylinder 1 and the electric heating column 2 is stopped, and then the motor Ⅱ10 is controlled to drive the transmission shaft 9 to rotate to reel in the pull rope 11. At the same time, based on the view from top to bottom, the motor Ⅰ4 is controlled to drive the electric heating column 2 to rotate counterclockwise. The rotation of the electric heating column 2 drives the partition Ⅰ5 and the flexible drying frame 6 to rotate, so that the flexible drying frame 6 is released. When the pull rope 11 is reeled in, the flexible drying frame 6 is pulled out through the partition Ⅱ7 and unfolded to be exposed outside the electric heating cylinder 1. At this time, the flexible drying frame 6 and the right part of the partition Ⅱ7 are fixed by pulling the pull rope 11. Long-term pulling will cause fatigue of the pull rope 11 and reduce its strength. Therefore, two support plates 15 are provided. When the flexible drying frame 6 is pulled out and unfolded to be exposed outside the electric heating cylinder 1, the partition Ⅱ7 is located on the two support plates 15 brackets. The flexible drying frame 6 is limited and fixed by the two support plates 15 to prevent long-term pulling from causing fatigue of the pull rope 11 and reducing its strength. Figure 1 As shown, ventilation and heat dissipation of the storage cylinder is achieved in this way, and the cooling time of the metal powder is shortened. During the ventilation and heat dissipation process, the annular space between the electric heating cylinder 1 and the electric heating column 2 is closed by the partition Ⅰ5, the partition Ⅲ12 and the cylinder cover 3 to prevent the waste heat generated by the electric heating cylinder 1 and the electric heating column 2 from being lost, thereby reducing energy loss. After the metal powder is cooled, a collection box is placed at the lower left and lower right of the flexible drying frame 6. In the initial state, the crack 6a is in a closed state. Then the upper push mechanism is controlled to lift the middle position of the bottom of the flexible drying frame 6. The left and right parts of the flexible drying frame 6 are fixed on the partition Ⅰ5 and the partition Ⅱ7 respectively. After the middle position of the bottom is lifted, the crack 6a is pulled around and the crack 6a is opened. In this way, the dried powder in the flexible drying frame 6 falls from the crack 6a to the collection box for collection. After collection, the upper push mechanism is controlled to reset, and the crack 6a is restored to a closed state, so that the next batch of powder is dried.

[0035] Example 2

[0036] On the basis of Example 1, Figure 1-4 As shown, in order to facilitate opening the crack 6a, the thickness of the lower left and lower right parts of the flexible drying frame 6 is smaller than the thickness of the remaining parts.

[0037] The flexible drying frame 6 is fixedly provided with a flexible stopper 14 disposed obliquely in the middle of the left side and the middle of the right side, respectively. The flexible stopper 14 is made of a deformable material with high thermal conductivity, such as modified silicone rubber with high thermal conductivity.

[0038] In the third step of Example 1: in order to facilitate the opening of the crack 6a, the thickness of the lower left and lower right parts of the flexible drying frame 6 is less than that of the remaining parts. In order to prevent the powder from pressing down and causing the crack 6a to open, thereby causing the powder to be exposed and spilled on the ground when no collection box is placed at the lower left and lower right parts of the flexible drying frame 6, a flexible stopper 14 is arranged above the crack 6a to bear a part of the powder above the crack 6a, reduce the pressure of the powder pressing down on the left and right parts of the flexible drying frame 6, and thus avoid the opening of the crack 6a; the flexible stopper 14 is arranged in a triangular shape to enhance its stability and avoid the powder from pressing down and causing the flexible stopper 14 to deform up and down and lose the ability to bear the powder.

[0039] Example 3

[0040] On the basis of Example 2, Figure 8 As shown, the lifting mechanism includes a mounting frame II 21, a cylinder I 22 and a lifting block 23; the mounting frame II 21 is arranged below the flexible drying frame 6; the cylinder I 22 is fixedly connected to the upper side of the mounting frame II 21; and the lifting block 23 is fixedly connected to the telescopic end of the cylinder I 22.

[0041] In order to facilitate the downward flow of the powder, the top block 23 is configured to be conical.

[0042] In order to prevent the flexible drying frame 6 from being damaged, the top of the conical top block 23 is configured to be arc-shaped.

[0043] The lifting mechanism also includes a cylinder II 24 and a limit plate 25; a cylinder II 24 is fixedly connected to the front and rear of the mounting frame II 21; and a limit plate 25 is fixedly connected to the telescopic ends of the two cylinders II 24.

[0044] In the third step of Example 1: when the lifting mechanism is working, the cylinder I 22 drives the lifting block 23 to move upward, so that the lifting block 23 contacts the lower side of the flexible drying frame 6, and then lifts up the lower part of the flexible drying frame 6, so that the crack 6a opens to allow the powder to flow out of the flexible drying frame 6; the lifting block 23 is conical, and the lower part of the flexible drying frame 6 is conical after being lifted up, which is conducive to the powder flowing to the opened crack 6a and out of the flexible drying frame 6; in order to prevent the lifting block 23 from lifting up the lower part of the flexible drying frame 6, the flexible drying frame 6 The drying frame 6 expands in the front-to-back direction, resulting in a decrease in the degree of pulling around the crack 6a, which makes the crack 6a open too small, affecting the outflow of powder. Before controlling the cylinder Ⅰ22 to drive the top block 23 to move upward, the two cylinders Ⅱ24 are controlled to drive the two limit plates 25 to move toward each other, so that the two limit plates 25 contact the flexible drying frame 6 and support the front and rear sides of the flexible drying frame 6. This prevents the top block 23 from lifting the lower part of the flexible drying frame 6 and the flexible drying frame 6 from expanding in the front-to-back direction.

[0045] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A powder metallurgy drying device for metal product production, comprising an electric heating cylinder (1), an electric heating column (2) and a cylinder cover (3); the electric heating cylinder (1) is rotatably connected to the electric heating column (2); the cylinder cover (3) is detachably connected to the electric heating cylinder (1); the characteristics are: The electric heating cylinder (1) further comprises a motor I (4), a partition I (5), a flexible drying frame (6), a partition II (7), a mounting frame I (8), a transmission shaft (9), a motor II (10), a pull rope (11) and a partition III (12); the motor I (4) is fixedly connected to the lower side of the electric heating cylinder (1); the output shaft of the motor I (4) is fixedly connected to the electric heating column (2); the outer surface of the electric heating column (2) is fixedly connected to the partition I (5); the flexible drying frame (6) is fixedly connected to the right side of the partition I (5); the lower left and lower right parts of the flexible drying frame (6) are respectively provided with a plurality of cracks (6a); the flexible drying frame (6) is fixedly connected to the right side of the partition I (5); the flexible drying frame (6) is fixedly connected to the partition I (5); the lower left and lower right parts of the flexible drying frame (6) are respectively provided with a plurality of cracks (6a); the flexible drying frame (6) is fixedly connected to the partition I (5); the lower right and lower right parts of the flexible drying frame (6) are respectively provided with a plurality of cracks (6a); the lower right and lower right parts of the flexible drying frame (6) are fixedly connected to the partition I (5); the lower left and lower right parts of the flexible drying frame (6) are respectively provided with a plurality of cracks (6a); the lower right and lower right parts of the flexible drying frame (6) are fixedly connected to the partition I (5 ... plate II (7); a mounting frame I (8) is arranged on the right side of the electric heating cylinder (1); a transmission shaft (9) is rotatably connected to the mounting frame I (8); a motor II (10) is fixedly connected to the mounting frame I (8); an output shaft of the motor II (10) is fixedly connected to the transmission shaft (9); a plurality of pull ropes (11) are wound on the transmission shaft (9); the left ends of all the pull ropes (11) are fixedly connected to the partition II (7); a partition III (12) is fixedly connected inside the electric heating cylinder (1); the partition III (12) is in contact with the electric heating column (2); the thickness of the lower left and lower right parts of the flexible drying frame (6) is less than the thickness of the remaining parts.

2. The powder metallurgy drying equipment for metal product production according to claim 1, characterized in that: It also includes a flexible drying rod (13); a plurality of flexible drying rods (13) are fixedly connected in the flexible drying frame (6).

3. The powder metallurgy drying equipment for metal product production according to claim 2, characterized in that: It also includes a support plate (15); two support plates (15) are fixedly connected to the left side of the mounting frame I (8); and the partition plate II (7) is located between the two support plates (15).

4. The powder metallurgy drying equipment for metal product production according to claim 3, characterized in that: The left portion of the support plate (15) is arranged in an inclined shape.

5. The powder metallurgy drying equipment for metal product production according to claim 4, characterized in that: It also includes a flexible stopper (14); a flexible stopper (14) arranged in an inclined manner is fixedly connected to the left side and the right side of the flexible drying frame (6).

6. The powder metallurgy drying equipment for metal product production according to claim 5, characterized in that: The lifting mechanism comprises a mounting frame II (21), a cylinder I (22) and a lifting block (23); the mounting frame II (21) is arranged below the flexible drying frame (6); the cylinder I (22) is fixedly connected to the upper side of the mounting frame II (21); and the lifting block (23) is fixedly connected to the telescopic end of the cylinder I (22).

7. The powder metallurgy drying equipment for metal product production according to claim 6, characterized in that: The top block (23) is configured to be conical.

8. The powder metallurgy drying equipment for metal product production according to claim 6, characterized in that: The top of the conical top block (23) is arranged in an arc shape.

9. The powder metallurgy drying equipment for metal product production according to claim 6, characterized in that: The lifting mechanism also includes a cylinder II (24) and a limit plate (25); a cylinder II (24) is fixedly connected to the front and rear of the mounting frame II (21); and a limit plate (25) is fixedly connected to the telescopic ends of the two cylinders II (24).

Images