Continuous powder conveyor

Abstract

The invention discloses a continuous powder conveyor which comprises a conveying barrel, a spiral conveying rod is rotatably mounted in the conveying barrel, the outer end of the spiral conveying rod is connected and assembled with the output end of an external first driving part through a speed reducer, the continuous powder conveyor further comprises a knocking and vibrating mechanism, and the knocking and vibrating mechanism comprises a first base frame arranged under the conveying barrel; a plurality of fixing plates which are arranged at equal intervals are arranged on the two sides of the upper surface of the first base frame, and swing arms are rotationally mounted on the outer surfaces of the fixing plates through adapter shafts; and the shaking screening mechanism is used for screening the powder. The knocking vibration mechanism is arranged, an air cylinder, a movable plate, a driving rack and a driving gear are used for driving a swing arm, the swing arm drives an impact wheel to knock a material conveying barrel, and the screening and crushing functions of an intercepting and crushing assembly in the shaking screening mechanism are matched, so that sticky powder can be effectively prevented from being bonded and blocked; the technical problem that traditional equipment is frequently shut down for cleaning is solved, and continuous conveying of powder is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of powder conveying, in particular to a continuous powder conveyor. Background Art

[0002] Screw conveyor is a conveying device that uses the rotation of spiral blades to push materials along the fixed casing. Its core structure is a hollow casing and a built-in spiral shaft. When the motor drives the spiral shaft to rotate, the material is transported from the feed port to the discharge port with the pushing action of the spiral blades. Screw conveyors are widely used in food, chemical, building materials and other industries, especially good at conveying powdered, granular and small block materials. The advantages of screw conveyors are compact structure, good sealing, flexible installation, and the ability to realize multi-point feeding and unloading. It is a key equipment to ensure the efficient flow of materials in industrial production.

[0003] When conveying powder, especially when conveying viscous and easily agglomerated powder, existing screw conveyors often cause blockage due to powder adhesion, and must be frequently stopped for cleaning, which easily affects the continuous conveying work. Therefore, a continuous powder conveyor is provided. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a continuous powder conveyor.

[0005] In order to solve the above technical problems, the basic technical solution proposed by the present invention is: A continuous powder conveyor comprises a feed barrel, wherein a spiral feed rod is rotatably installed inside the feed barrel, and the outer end of the spiral feed rod is connected and assembled with the output end of an external first driving member via a reducer, and further comprises: a knocking vibration mechanism for vibrating the feed barrel, wherein the knocking vibration mechanism comprises a first base frame arranged directly below the feed barrel, and a plurality of fixed plates arranged at equal intervals are arranged on both sides of the upper surface of the first base frame, and a swing arm is rotatably installed on the outer surface of the fixed plate via a connecting shaft; and a shaking screening mechanism for screening powder.

[0006] Preferably, both ends of the swing arm are equipped with impact wheels for hitting the feed barrel, and the outer surface of the impact wheel is provided with a metal sleeve, a driving gear is fixedly installed on the bottom of the swing arm and on the side away from the fixed plate, a rack guide is fixedly provided on the upper surface of the first base frame and at each fixed plate position, and a driving rack for driving the driving gear is slidably provided on the inner surface of the rack guide, cylinders are installed on both sides of the upper surface of the first base frame, and the output end of the cylinder is provided with a movable plate for synchronously pushing and pulling each driving rack.

[0007] Preferably, the driving gear corresponds to the position of the adapter shaft, the rack guide rail is located at the horizontal central axis position of the first base frame, the driving rack is meshed with the driving gear, each driving rack is connected to the movable plate, the output end of the cylinder is connected to the outer end of the movable plate, and a plurality of support seats arranged at equal intervals are installed on the upper surface of the first base frame near the feeding cylinder.

[0008] Preferably, the jitter screening mechanism includes a second base frame arranged above the feeding cylinder and a screening cover arranged directly above the second base frame. The screening cover is elastically arranged with the second base frame through a vibration spring, and a vibration motor for jittering the screening cover is installed on the outer surface of the screening cover. A feeding hopper is fixedly arranged in the middle of the outlet end of the screening cover, and a telescopic sleeve is arranged in the middle of the outlet end of the feeding hopper. The inlet end of the telescopic sleeve is connected to the outlet end of the feeding hopper, and the outlet end of the telescopic sleeve is connected to the inlet end of the feeding cylinder. A feeding hopper is arranged directly above the screening cover, and the feeding hopper is in a horn shape and is connected to the screening cover through a bracket.

[0009] Preferably, an interception and crushing component for intercepting and crushing agglomerated powder is arranged inside the screening cover. The interception and crushing component includes a plurality of guide seats fixed at equal intervals in a ring shape on the middle part of the inner surface of the screening cover. A scissor-type telescopic component is arranged on one side of the guide seat, and an interception piece is fixedly arranged at the end of the cross central axis of the scissor-type telescopic component.

[0010] Preferably, a bidirectional screw rod is rotatably arranged inside the guide seat through a bearing. Thread blocks are arranged on both sides of the outer surface of the bidirectional screw rod. The two thread blocks are engaged with the bidirectional screw rod through threads. The two thread blocks respectively correspond to the positions of the two cross central axes at the head and tail ends, and the thread blocks are connected to the cross central axes. Adjacent two bidirectional screw rods are driven by a bevel gear transmission component. The outer end of one of the bidirectional screw rods is connected and assembled with the output end of an external second driving part through a coupling. The second driving part is a servo motor.

[0011] The beneficial effects of the present invention are: By setting the knocking and vibrating mechanism, the swing arm is driven by the cylinder, the movable plate, the driving rack and the driving gear, and the impact wheel is driven by the swing arm to knock the feeding cylinder, and in cooperation with the screening and crushing functions of the interception and crushing component in the jitter screening mechanism, it can effectively prevent the sticky powder from sticking and blocking, solve the technical problem of frequent shutdown and cleaning of traditional equipment, and ensure the continuous conveying of the powder. Description of the Drawings

[0012] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the internal structural schematic diagram of the screening cover of the present invention; Figure 3 It is a schematic diagram of the structure of the knocking vibration mechanism of the present invention.

[0013] Description of reference numerals: 100, striking vibration mechanism; 101, first base frame; 102, movable plate; 103, support seat; 104, driving rack; 105, cylinder; 106, fixed plate; 107, rack guide rail; 108, adapter shaft; 109, swing arm; 110, metal sleeve; 111, impact wheel; 112, driving gear; 200, feeding cylinder; 201, spiral feeding rod; 202, first driving member; 300 , shaking screening mechanism; 301, upper hopper; 302, bracket; 303, vibration spring; 304, second base frame; 305, telescopic sleeve; 306, lower hopper; 307, screening cover; 308, cross center axis; 309, threaded block; 310, second driving member; 311, guide seat; 312, scissors-type telescopic assembly; 313, bidirectional screw; 314, bevel gear transmission assembly; 315, intercepting piece. DETAILED DESCRIPTION

[0014] The following will be combined with the attached Figure 1 To Attachment Figure 3 The technical solutions in the embodiments of the present invention are described clearly and completely. 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.

[0015] The present invention provides a technical solution: a powder continuous conveyor, including a feed barrel 200, wherein a spiral feed rod 201 is rotatably installed inside the feed barrel 200 for conveying powder, and the outer end of the spiral feed rod 201 is connected and assembled with the output end of an external first driving member 202 via a reducer. The device also includes: a knocking vibration mechanism 100 for vibrating the feed barrel 200, which, when in use, vibrates the feed barrel 200 by knocking on both sides of the outer surface of the feed barrel 200, thereby preventing sticky powder from sticking to the inner wall of the feed barrel 200 and ensuring continuous conveying; and a shaking screening mechanism 300 for screening powder.

[0016] Specifically, the knocking and vibrating mechanism 100 includes a first base frame 101 disposed directly below the material conveying cylinder 200. On both sides of the upper surface of the first base frame 101, a plurality of fixing plates 106 arranged at equal intervals are provided. The outer surface of the fixing plate 106 is rotatably installed with a swing arm 109 through a transfer shaft 108. Impact wheels 111 for hitting the material conveying cylinder 200 are installed at both ends of the swing arm 109. A metal sleeve 110 is provided on the outer surface of the impact wheel 111. A drive gear 112 is fixedly installed at the bottom of the swing arm 109 and on the side away from the fixing plate 106 for driving the swing arm 109 to rotate synchronously. The drive gear 112 corresponds to the position of the transfer shaft 108. A plurality of support seats 103 arranged at equal intervals are installed on the upper surface of the first base frame 101 and near the material conveying cylinder 200 for carrying and stabilizing the material conveying cylinder 200. Further, at each position of the fixing plate 106 on the upper surface of the first base frame 101, a rack guide 107 is fixedly provided. A drive rack 104 for driving the drive gear 112 is slidably arranged on the inner surface of the rack guide 107. The drive rack 104 is engaged with the drive gear 112. The rack guide 107 is located at the horizontal central axis position of the first base frame 101. Cylinders 105 are installed on both sides of the upper surface of the first base frame 101. An active plate 102 for synchronously pushing and pulling each drive rack 104 is provided at the output end of the cylinder 105. Each drive rack 104 is connected to the active plate 102. The output end of the cylinder 105 is connected to the outer end of the active plate 102.

[0017] Specifically, the jitter screening mechanism 300 includes a second base frame 304 disposed above the material feeding cylinder 200, and a screening cover 307 disposed directly above the second base frame 304. The screening cover 307 is elastically disposed with the second base frame 304 through a vibration spring 303. An outer surface of the screening cover 307 is mounted with a vibration motor for jittering the screening cover 307. The vibration motor is not drawn and labeled in the accompanying drawings of the specification. As a prior art, it will not be elaborated here. A middle part of an outlet end of the screening cover 307 is fixedly provided with a feed hopper 306. A middle part of an outlet end of the feed hopper 306 is provided with a telescopic sleeve 305 for conveying the screened powder into the material feeding cylinder 200. An inlet end of the telescopic sleeve 305 is connected to the outlet end of the feed hopper 306, and an outlet end of the telescopic sleeve 305 is connected to an inlet end of the material feeding cylinder 200. A feed hopper 301 is disposed directly above the screening cover 307. The feed hopper 301 is in a horn shape. The feed hopper 301 is connected to the screening cover 307 through a bracket 302. Further, an inside of the screening cover 307 is provided with an interception and crushing assembly for intercepting and crushing agglomerated powder. Specifically, the interception and crushing assembly includes a plurality of guide seats 311 fixedly arranged at equal intervals in a ring shape on a middle part of an inner surface of the screening cover 307. One side of the guide seat 311 is provided with a scissor-type telescopic assembly 312. A terminal end of an intersection central axis 308 of the scissor-type telescopic assembly 312 is fixedly provided with an interception piece 315. During use, the interception pieces 315 merge and unfold with each other under the equidistant adjustment of the scissor-type telescopic assembly 312. The spacing between adjacent two interception pieces 315 can be used to screen bulk powder with different particle sizes. In addition, by repeatedly adjusting the spacing between adjacent two interception pieces 315, the accumulated bulk powder can be crushed. An inside of the guide seat 311 is rotatably provided with a bidirectional screw 313 through a bearing. Both sides of an outer surface of the bidirectional screw 313 are provided with threaded blocks 309. The two threaded blocks 309 are both engaged with the bidirectional screw 313 through threads. The two threaded blocks 309 respectively correspond to positions of two intersection central axes 308 at the head and the tail, and the threaded blocks 309 are connected to the intersection central axes 308. Adjacent two bidirectional screws 313 are driven by a bevel gear transmission assembly 314. An outer end of one of the bidirectional screws 313 is connected and assembled with an output end of an external second driving member 310 through a coupling. The second driving member 310 is a servo motor.

[0018] According to the above, by setting the knocking and vibrating mechanism 100, the air cylinder 105, the movable plate 102, the driving rack 104, and the driving gear 112 are used to drive the swing arm 109. The swing arm 109 drives the impact wheel 111 to knock the material feeding cylinder 200, and in cooperation with the screening and crushing functions of the interception and crushing assembly in the jitter screening mechanism 300, it can effectively prevent the sticky powder from sticking and blocking, solve the technical problem of frequent shutdown and cleaning of traditional equipment, and ensure the continuous conveying of the powder.

[0019] Based on the disclosure and teachings of the above specification, those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A powder continuous conveyor, comprising a feeding barrel (200), wherein a spiral feeding rod (201) is rotatably mounted inside the feeding barrel (200), and the outer end of the spiral feeding rod (201) is connected and assembled with the output end of an external first driving member (202) via a reducer, characterized in that: Also includes: A knocking vibration mechanism (100) for vibrating a feeding barrel (200), the knocking vibration mechanism (100) comprising a first base frame (101) arranged directly below the feeding barrel (200), and a plurality of fixed plates (106) arranged at equal intervals are arranged on both sides of the upper surface of the first base frame (101), and a swing arm (109) is rotatably mounted on the outer surface of the fixed plate (106) via a transfer shaft (108); and a shaking screening mechanism (300) for screening powdery materials.

2. A powder continuous conveyor according to claim 1, characterized in that: Both ends of the swing arm (109) are equipped with impact wheels (111) for striking the feeding barrel (200), and the outer surface of the impact wheel (111) is provided with a metal sleeve (110). A driving gear (112) is fixedly installed at the bottom of the swing arm (109) and on the side away from the fixed plate (106). A rack guide rail (107) is fixedly installed on the upper surface of the first base frame (101) and located at each fixed plate (106), and a driving rack (104) for driving the driving gear (112) is slidably provided on the inner surface of the rack guide rail (107). Cylinders (105) are installed on both sides of the upper surface of the first base frame (101), and a movable plate (102) for synchronously pushing and pulling each driving rack (104) is provided at the output end of the cylinder (105).

3. A powder continuous conveyor according to claim 2, characterized in that: The driving gear (112) corresponds to the position of the adapter shaft (108), the rack guide rail (107) is located at the transverse center axis position of the first base frame (101), the driving rack (104) is meshed with the driving gear (112), each of the driving racks (104) is connected to the movable plate (102), the output end of the cylinder (105) is connected to the outer end of the movable plate (102), and a plurality of support seats (103) arranged at equal intervals are installed on the upper surface of the first base frame (101) and close to the feeding barrel (200).

4. The continuous powder conveyor according to claim 1, characterized in that: The shaking screening mechanism (300) comprises a second base frame (304) arranged above the feeding cylinder (200), and a screening cover (307) arranged directly above the second base frame (304), wherein the screening cover (307) and the second base frame (304) are elastically arranged via a vibration spring (303), and a vibration motor for shaking the screening cover (307) is installed on the outer surface of the screening cover (307), and a lower hopper is fixedly arranged in the middle of the outlet end of the screening cover (307). (306), and a telescopic sleeve (305) is provided in the middle of the outlet end of the lower hopper (306), the inlet end of the telescopic sleeve (305) is connected to the outlet end of the lower hopper (306), and the outlet end of the telescopic sleeve (305) is connected to the inlet end of the feeding cylinder (200), and an upper hopper (301) is provided directly above the screening cover (307), and the upper hopper (301) is trumpet-shaped, and the upper hopper (301) and the screening cover (307) are connected via a bracket (302).

5. A powder continuous conveyor according to claim 4, characterized in that: An interception and crushing assembly for intercepting and crushing agglomerated powder is arranged inside the screening cover (307), the interception and crushing assembly comprising a plurality of guide seats (311) fixed in a circular shape and at equal intervals in the middle of the inner surface of the screening cover (307), a scissor-type telescopic assembly (312) is arranged on one side of the guide seat (311), and an interception piece (315) is fixedly arranged at the end of the cross central axis (308) of the scissor-type telescopic assembly (312).

6. A powder continuous conveyor according to claim 5, characterized in that: A bidirectional screw (313) is rotatably arranged inside the guide seat (311) via a bearing, and thread blocks (309) are arranged on both sides of the outer surface of the bidirectional screw (313), and the two thread blocks (309) are engaged with the bidirectional screw (313) via threads, and the two thread blocks (309) correspond to the positions of two cross central axes (308) located at the head and tail ends respectively, and the thread blocks (309) are connected to the cross central axes (308), and two adjacent bidirectional screws (313) are driven via a bevel gear transmission assembly (314), and the outer end of one of the bidirectional screws (313) is connected and assembled with the output end of an external second driving member (310) via a coupling, and the second driving member (310) is a servo motor.

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