Automatic feeding structure for powder preparation

Abstract

The utility model provides an automatic feeding structure for powder preparation. The automatic feeding structure for powder preparation comprises a machine shell, a conveying piece and a material guiding piece. A feeding port is formed in the top of one end of the machine shell, a discharging port is formed in the bottom of the other end of the machine shell, and frame plates are arranged on the edges of the feeding port and the discharging port. The conveying part comprises a motor, a rotating shaft, a first spiral conveying blade and a second spiral conveying blade; one end part of the rotating shaft is connected with an output shaft of the motor; the first spiral conveying blade is arranged on the outer surface of the rotating shaft and close to the feeding port and the discharging port, the second spiral conveying blade is arranged on the outer surface of the rotating shaft and located beside the first spiral conveying blade, and the size of the first spiral conveying blade is smaller than that of the second spiral conveying blade. The material guiding piece is rotationally connected with the frame plate so as to maintain the vertical state of the material guiding piece in the state that the longitudinal angle of the machine shell is changed. According to the utility model, through the matching of the movably connected material guiding pieces, materials can be guided to enter and exit from the machine shell, and the vertical property can be continuously kept when the angle of the machine shell is changed.

Description

Technical Field

[0001] The utility model relates to the technical field of powder preparation, in particular to an automatic feeding structure for powder preparation. Background Art

[0002] In the powder preparation process, due to the small diameter of the powder particles, closed feeding equipment is often used in the processing process to avoid the scattering of the materials in process or the finished powder, which will cause chaos in the processing environment. The screw feeder is a common machine for conveying dry powder materials and small particle materials. The working principle is that the rotating spiral blade pushes the material to be conveyed by the screw conveyor. Due to changes in the processing environment or other factors, the screw feeder may need to be adjusted in angle, that is, tilted. However, the upper and lower feed ports of the existing screw feeder are fixedly connected to the casing. When the casing is tilted, the angles of the upper and lower feed ports also change accordingly. During automated processing, there are instruments directly above and below the screw feeder. If the angles of the upper and lower feed ports of the bolt feeder are offset, they cannot be matched with the upper and lower instruments. It is necessary to connect the upper and lower instruments to the screw feeder through other pipeline auxiliary parts to achieve external closure and internal communication, but there is a situation where the pipeline accumulates materials. Or the upper and lower instruments can be matched with the screw feeder through customized instruments, but the cost will increase. Utility Model Content

[0003] Based on this, it is necessary to provide a powder system standby automatic feeding structure to address the problem that the existing screw feeder upper and lower ports are fixed and cannot adapt to changes in the machine angle.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses an automatic feeding structure for a powder machine, which comprises a casing, a conveying part and a material guiding part.

[0006] A loading port is provided at the top of one end of the casing, and a unloading port is provided at the bottom of the other end, and frame plates are provided at the edges of the loading port and the unloading port;

[0007] The conveying member includes a motor, a rotating shaft, a first spiral conveying blade and a second spiral conveying blade; the motor is mounted outside one end of the casing; the rotating shaft is located on the central axis of the casing, the rotating shaft is movably connected to the casing and one end of the rotating shaft is connected to the output shaft of the motor; the first spiral conveying blade is arranged on the outer surface of the rotating shaft and close to the loading port and the unloading port, the second spiral conveying blade is arranged on the outer surface of the rotating shaft and is located beside the first spiral conveying blade, and the size of the first spiral conveying blade is smaller than that of the second spiral conveying blade;

[0008] The material guide is rotatably connected to the frame plate to maintain the vertical state of the material guide when the longitudinal angle of the housing changes.

[0009] Furthermore, the material guide member includes a material guide frame, a movable shaft and a flexible pad; one end of the material guide frame passes through the loading port or the unloading port of the casing and is located inside the casing; the movable shaft is arranged on the symmetrical outer walls of the material guide frame, the length direction of the movable shaft is located in the radial direction of the casing, and the end of the movable shaft is movably connected to the frame plate; the flexible pad is fixedly arranged on the outer periphery of the material guide frame to fill the gap between the material guide frame and the frame plate.

[0010] Furthermore, the material guide frame includes a first frame portion, a convergent portion, a second frame portion and an outward expansion portion which are arranged in sequence; the first frame portion is located outside the frame plate and has a size larger than the size of the frame plate, the second frame portion has a size smaller than the size of the frame plate, the first frame portion and the second frame portion are connected as a whole through the convergent portion, the edge of the second frame portion expands outward to form an outward expansion portion, the end size of the outward expansion portion is larger than the size of the frame plate, and is located inside the casing.

[0011] Furthermore, the thickness of the top and bottom of the two sides of the flexible pad away from the movable axis gradually decreases to form an inclined surface, and the thickness of the middle of the two sides is greater than the thickness of the other two symmetrical sides.

[0012] Furthermore, the material guide member includes a material guide frame, an elastic member and a flexible pad; one end of the material guide frame passes through the loading port or the unloading port of the casing and is located inside the casing; the elastic member is arranged on the two symmetrical outer walls of the material guide frame, the expansion and contraction direction of the elastic member is located in the radial direction of the casing, and the end portion passes through the frame plate; the flexible pad is fixedly arranged on the outer periphery of the material guide frame to fill the gap between the material guide frame and the frame plate.

[0013] Furthermore, the elastic part includes a fixed rod, a movable sleeve and a spring; a through hole 1 for the fixed rod to pass through is opened on the side wall of the material guide frame, one end of the fixed rod is located inside the material guide frame and is fixed, the other end is located in the through hole 1 and the outer surface is slidably connected with a movable sleeve, one end of the movable sleeve is closed and a spring is arranged between the fixed rod, and a through hole 2 adapted to the end of the movable sleeve is opened at a corresponding position on the frame plate.

[0014] Furthermore, the closed end of the movable sleeve is configured to be hemispherical.

[0015] Furthermore, a limiting slide groove is provided on the outer wall of the fixed rod, and a limiting slider adapted to the limiting slide groove is fixedly provided on the inner wall of one end of the movable sleeve opening, and the limiting slider is located in the limiting slide groove.

[0016] Compared with the prior art, the beneficial effects of the utility model include:

[0017] 1. The utility model provides a first spiral conveying blade of slightly smaller size at the feeding port and the feeding port of the casing, which cooperates with the movably connected material guide piece, so that the material can not only guide the material in and out of the casing, but also the material guide piece can continue to maintain verticality when the angle of the casing changes, and then cooperate with the upper and lower devices of the casing, without the need to use other pipeline auxiliary parts or customized devices, and the structure is simple;

[0018] 2. The dimensions of both ends of the material guide frame of the utility model are larger than those of the frame plate, which can prevent the material guide frame from falling. The material guide frame is connected to the frame plate through a movable shaft or elastic member, so that it can rotate and maintain its verticality when the frame plate is offset. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0020] Figure 1 This is an internal cross-sectional view of an automatic feeding structure for a powder making machine introduced in Example 1 of the utility model;

[0021] Figure 2 Based on Figure 1 An internal cross-sectional view of a material guide member;

[0022] Figure 3 Based on Figure 2 A top view of a material guide member;

[0023] Figure 4 Based on Figure 1 Schematic diagram of the housing angle offset;

[0024] Figure 5 It is a transverse cross-sectional view of the material guide member introduced in Example 2;

[0025] Figure 6 Based on Figure 5 A magnified view of point A.

[0026] Explanations in the figure: 1. Casing; 11. Frame plate; 2. Conveying member; 21. Motor; 22. Rotating shaft; 23. First spiral conveying blade; 24. Second spiral conveying blade; 3. Material guiding member; 31. Material guiding frame; 311. First frame portion; 312. Converging portion; 313. Second frame portion; 314. Outward expansion portion; 32. Movable shaft; 33. Flexible pad; 4. Elastic member; 41. Fixed rod; 42. Movable sleeve; 43. Spring; 44. Limiting slider; 45. Limiting slide groove. DETAILED DESCRIPTION

[0027] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.

[0028] Example 1

[0029] See also Figure 1 This embodiment introduces a powder machine standby automatic feeding structure, which is mainly composed of a casing 1, a conveying member 2 and a material guide member 3. The casing 1 is closed as a whole, with a feeding port at the top of one end and a feeding port at the bottom of the other end. The sizes of the feeding port and the feeding port can be consistent or inconsistent. In actual application, a bracket or other auxiliary support member can be installed on the casing 1 to support the casing 1.

[0030] The conveying member 2 is mainly composed of a motor 21, a rotating shaft 22, a first spiral conveying blade 23 and a second spiral conveying blade 24. The motor 21 is installed outside the housing 1, but the output shaft of the motor 21 passes through the housing 1 and is located inside the housing 1, and is connected to the rotating shaft 22. The rotating shaft 22 is located on the central axis of the housing 1 and is connected to the housing 1 through bearings and other components, so that the rotating shaft 22 is driven by the motor 21 to rotate on the central axis of the housing 1, and the rotation direction of the motor 21 is adapted to the first spiral conveying blade 23 and the second spiral conveying blade 24. The size of the first spiral conveying blade 23 is smaller than that of the second spiral conveying blade 24, that is, the distance between the first spiral conveying blade 23 and the inner wall of the casing 1 is smaller than the distance between the second spiral conveying blade 24 and the inner wall of the casing 1. The first spiral conveying blade 23 and the second spiral conveying blade 24 are arranged on the outer surface of the rotating shaft 22. The first spiral conveying blade 23 is close to the loading port and the unloading port of the casing 1, and the second spiral conveying blade 24 is arranged adjacent to the first spiral conveying blade 23. In this way, the material guide member 3 is partially located in the casing 1 and is not in contact with the first spiral conveying blade 23, so it is not affected by it, and it can also basically ensure the normal transportation of materials.

[0031] In order to facilitate the connection with the material guide 3, a frame plate 11 is provided at the material loading port and the material unloading port of the housing 1. The material guide 3 is movably connected with the frame plate 11. During actual assembly, the material guide 3 can be connected with the frame plate 11 first, and then the frame plate 11 can be fixed on the material loading port and the material unloading port of the housing 1.

[0032] like Figure 2-3 As shown, the material guide member 3 is mainly composed of a material guide frame 31, a movable shaft 32 and a flexible pad 33. The material guide frame 31 includes a first frame portion 311, a convergent portion 312, a second frame portion 313 and an outward expansion portion 314 connected in sequence. The size of the first frame portion 311 is larger than the size of the frame plate 11 and is located outside the frame plate 11. The size of the outward expansion portion 314 gradually increases outward, and the size of its end portion is also larger than the size of the frame portion and is located inside the housing 1. The second frame portion 313 is located inside the frame plate 11. When the material guide frame 31 is installed on the frame plate 11, even if it is loose, the material guide frame 31 will not be separated from the frame plate 11.

[0033] Since the size of the second frame portion 313 is smaller than that of the frame plate 11, there is a gap between the second frame portion 313 and the frame plate 11, and a flexible pad 33 is arranged on the outer surface of the second frame portion 313 to fill the gap between the second frame portion 313 and the frame plate 11. The flexible pad 33 itself is elastic and has a certain degree of elasticity. Since even if the angle of the housing 1 changes, it is only for the change of the longitudinal position of the upper and lower material ports, that is, the height of the upper material port is higher than the lower material port or vice versa, if the guide frame 31 maintains longitudinality, the two sides located on the line connecting the upper and lower material ports will be squeezed. In order to improve adaptability, the thickness of the two sides of the guide frame 31 located on the line connecting the upper and lower material ports is greater than that of the other two sides, and the thickness of the top and bottom gradually decreases to form an inclined surface to adapt to the change of the angle of the housing 1. At the same time, the movable shaft 32 is arranged on the other two sides of the material guide frame 31. The frame plate 11 has a hole to accommodate the end of the movable shaft 32, so that the end of the movable shaft 32 passes through the frame plate 11. The movable shaft 32 can realize the rotation of the material guide frame 31 in the frame plate 11.

[0034] In actual application, the material guide 3 can be used at both the feeding port and the feeding port of the casing 1, or only at the feeding port. The upper and lower devices of the casing 1 can be connected to the first frame portion 311 of the material guide frame 31 to achieve external closure and internal communication to achieve the purpose of dust-free. If the size of the first frame portion 311 is relatively small, a guide frame can be installed on the first frame portion 311, especially at the feeding port, to facilitate guiding more materials into the casing 1 in a larger range. The material enters the casing 1 through the feeding port, the motor 21 drives the rotating shaft 22, and the first spiral conveying blade 23 and the second spiral conveying blade 24 deliver the material to the feeding port to realize the feeding of the material.

[0035] This embodiment arranges slightly smaller first spiral conveying blades 23 at the feeding port and the feeding port of the casing 1, which cooperate with the movably connected material guide member 3, so as to not only guide the material into and out of the casing 1, but also enable the material guide member 3 to continue to maintain verticality when the angle of the casing 1 changes, thereby cooperating with the upper and lower devices of the casing 1, without the need to use other pipeline auxiliary parts or customized devices, and has a simple structure.

[0036] Example 2

[0037] See also Figure 5-6 This embodiment introduces a powder system standby automatic feeding structure, which is basically the same as the powder system standby automatic feeding structure introduced in Example 1. The difference is that the material guide member 3 of this embodiment is mainly composed of a material guide frame 31, an elastic member 4 and a flexible pad 33. The structure of the material guide frame 31 and the flexible pad 33 can adopt the same structure as that of Example 1, and the elastic member 4 replaces the movable shaft 32. The elastic member 4 is installed on the second frame portion 313.

[0038] The elastic member 4 mainly includes a fixed rod 41, a movable sleeve 42 and a spring 43. The fixed rod 41 is installed on both sides of the thin flexible pad 33. A through hole 1 can be preset on the flexible pad 33 for installing the fixed rod 41. The through hole 1 extends to the material guide frame 31. One end of the fixed rod 41 passes through the through hole 1 and is located inside the material guide frame 31. The fixed rod 41 is bent in the axial direction by radial extension to form a curved portion. While being fixed to the inner wall of the material guide frame 31, a movable space for the movable sleeve 42 is also reserved. The other end of the fixed rod 41 is located in the through hole 1. There is a gap between the fixed rod 41 and the through hole 1 to accommodate the movable sleeve 42. Therefore, the open end of the movable sleeve 42 can be located in the through hole 1 and sleeved on the outer surface of the fixed rod 41. The other end of the movable sleeve 42 is closed and hemispherical. The hemispherical design facilitates the guide into the preset through hole 2 on the frame plate 11. A spring 43 is arranged between the movable sleeve 42 and the fixed rod 41 to push the movable sleeve 42 outward.

[0039] In order to prevent the movable sleeve 42 from being separated from the fixed rod 41, a limiting slot 45 is provided on the outer surface of the fixed rod 41, and an adapted limiting slider 44 is provided on the inner wall of the movable sleeve 42. The limiting slider 44 is located in the limiting slot 45 to limit the movable sleeve 42. When the frame plate 11 is connected to the material guide frame 31, the movable sleeve 42 is squeezed by the frame plate 11 at first, and when it moves to the second through hole, the movable sleeve 42 moves outward to achieve the connection between the second frame part 313 and the frame plate 11. The other parts of the material guide frame 31 can be welded together after the second frame part 313 is connected to the frame plate 11.

[0040] This embodiment has the same beneficial effects as Embodiment 1.

[0041] The technical scope of the present invention is not limited to the contents described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A powder machine standby automatic feeding structure, characterized in that: It includes: The casing (1) has a loading port at the top of one end and a unloading port at the bottom of the other end, and the edges of the loading port and the unloading port are provided with frame plates (11); The conveying member (2) comprises a motor (21), a rotating shaft (22), a first spiral conveying blade (23) and a second spiral conveying blade (24); the motor (21) is mounted outside one end of the casing (1); the rotating shaft (22) is located on the central axis of the casing (1), the rotating shaft (22) is movably connected to the casing (1) and one end of the rotating shaft (22) is connected to the output shaft of the motor (21); the first spiral conveying blade (23) is arranged on the outer surface of the rotating shaft (22) and is close to the loading port and the unloading port, the second spiral conveying blade (24) is arranged on the outer surface of the rotating shaft (22) and is located beside the first spiral conveying blade (23), and the size of the first spiral conveying blade (23) is smaller than that of the second spiral conveying blade (24); The material guide member (3) is rotatably connected to the frame plate (11) to maintain the vertical state of the material guide member (3) when the longitudinal angle of the housing (1) changes.

2. The automatic feeding structure for powder making according to claim 1 is characterized in that: The material guide member (3) comprises a material guide frame (31), a movable shaft (32) and a flexible pad (33); one end of the material guide frame (31) passes through a material loading port or a material unloading port of a casing (1) and is located inside the casing (1); the movable shaft (32) is arranged on two symmetrical outer walls of the material guide frame (31), the length direction of the movable shaft (32) is located in the radial direction of the casing (1), and the end of the movable shaft (32) is movably connected to the frame plate (11); the flexible pad (33) is fixedly arranged on the outer periphery of the material guide frame (31) to fill the gap between the material guide frame (31) and the frame plate (11).

3. The automatic feeding structure for powder making according to claim 2 is characterized in that: The material guide frame (31) comprises a first frame portion (311), a convergent portion (312), a second frame portion (313) and an outward expansion portion (314) which are arranged in sequence; the first frame portion (311) is located outside the frame plate (11) and has a size larger than that of the frame plate (11); the second frame portion (313) has a size smaller than that of the frame plate (11); the first frame portion (311) and the second frame portion (313) are connected as a whole via the convergent portion (312); the edge of the second frame portion (313) expands outward to form an outward expansion portion (314); the end size of the outward expansion portion (314) is larger than that of the frame plate (11) and is located inside the housing (1).

4. The automatic feeding structure for powder making according to claim 2 is characterized in that: The thickness of the top and bottom of the two sides of the flexible pad (33) away from the movable axis (32) gradually decreases to form an inclined surface, and the thickness of the middle part of the two sides is greater than the thickness of the other two symmetrical sides.

5. The automatic feeding structure for powder making according to claim 2 is characterized in that: The material guide member (3) comprises a material guide frame (31), an elastic member (4) and a flexible pad (33); one end of the material guide frame (31) passes through a material loading port or a material unloading port of a casing (1) and is located inside the casing (1); the elastic member (4) is arranged on two symmetrical outer walls of the material guide frame (31), the expansion and contraction direction of the elastic member (4) is located in the radial direction of the casing (1), and the end portion passes through the frame plate (11); the flexible pad (33) is fixedly arranged on the outer periphery of the material guide frame (31) to fill the gap between the material guide frame (31) and the frame plate (11).

6. The automatic feeding structure for powder making according to claim 2 is characterized in that: The elastic member (4) comprises a fixed rod (41), a movable sleeve (42) and a spring (43); a through hole 1 for the fixed rod (41) to pass through is opened on the side wall of the material guide frame (31); one end of the fixed rod (41) is located inside the material guide frame (31) and is fixedly connected, and the other end is located in the through hole 1 and the outer surface is slidably connected with the movable sleeve (42); one end of the movable sleeve (42) is closed and a spring (43) is arranged between the movable sleeve (42) and the fixed rod (41); a through hole 2 adapted to the end of the movable sleeve (42) is opened at a corresponding position on the frame plate (11).

7. The automatic feeding structure for powder making according to claim 6 is characterized in that: One closed end of the movable sleeve (42) is configured to be hemispherical.

8. The automatic feeding structure for powder making according to claim 6 is characterized in that: A limiting slide groove (45) is provided on the outer wall of the fixed rod (41), and a limiting slide block (44) adapted to the limiting slide groove (45) is fixedly provided on the inner wall of the open end of the movable sleeve (42), and the limiting slide block (44) is located in the limiting slide groove (45).

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