Negative pressure feeding mechanism with dredging function

Abstract

The negative pressure feeding mechanism with the dredging function comprises a material storage tank, a feeding pipe is fixed to the top of the material storage tank in a communicated mode, an exhaust fan is fixedly connected to the outer wall of the top of the material storage tank, an air inlet of the exhaust fan is communicated with the material storage tank, a plurality of dredging assemblies are arranged on the top of the feeding pipe, and the dredging assemblies are arranged on the outer wall of the top of the material storage tank. The dredging assembly comprises a connecting plate, guide grooves are formed in the two ends of the connecting plate, two L-shaped plates are fixedly connected to the outer wall of the top of the feeding pipe, the L-shaped plates are slidably connected with the guide grooves, a rotating disc is movably connected to the bottom of the connecting plate, and a power assembly is arranged between the connecting plate and the feeding pipe. According to the feeding device, materials in the feeding pipe can be dredged through the stirring plate, the situation that powder materials are prone to being blocked in the feeding pipe is avoided, and the L-shaped plate can stably move up and down through the guide groove.

Description

Technical Field

[0001] The utility model relates to the technical field of folding machines, in particular to a negative pressure feeding mechanism with a dredging function. Background Art

[0002] In the preparation process of graphite powder, the bagged graphite powder is usually transported to the subsequent process through a vacuum negative pressure feeding device.

[0003] After searching, a Chinese patent with publication number CN207698786U discloses a vacuum negative pressure feeding device, the key points of its technical solution are that it includes a storage tank, a feeding hopper, a feeding pipe connected between the feeding hopper and the storage tank, and an exhaust fan arranged on the upper surface of the storage tank. However, there are still the following defects: when the material is sucked into the equipment for feeding, due to the stacking effect of the material, there is static friction between the materials. Since the material at the bottom is subjected to the pressure from the upper material, the static friction between the materials is large, which makes the powder easily blocked at the outlet. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a negative pressure feeding mechanism with a dredging function.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A negative pressure feeding mechanism with a dredging function comprises a storage tank, a feeding pipe is fixed on the top of the storage tank through communication, an exhaust fan is fixedly connected to the top outer wall of the storage tank, and an air inlet of the exhaust fan is connected to the storage tank, a plurality of dredging components are arranged on the top of the feed pipe, and the dredging components comprise a connecting plate, guide grooves are provided at both ends of the connecting plate, two L-shaped plates are fixedly connected to the top outer wall of the feed pipe, and the L-shaped plate is slidably connected to the guide groove, a turntable is movably connected to the bottom of the connecting plate, a power component is arranged between the connecting plate and the feed pipe, a slide groove is provided on the top of the feed pipe, a shell body is extended downwardly in the slide groove, and the top end of the shell body is fixed to the turntable, a first connecting shaft is plugged and rotatably connected to the bottom end of the shell body, the outer key of the first connecting shaft is connected to the first bevel gear, and both ends of the first connecting shaft pass through the shell body and are fixedly connected to a stirring plate.

[0007] As a further solution of the utility model, the power assembly includes a motor, which is fixed to the upper surface of the connecting plate by bolts, one end of the motor output shaft passes through the connecting plate and is fixedly connected to the second connecting shaft, and the turntable is fixed to the second connecting shaft, the second connecting shaft is located inside the shell, the bottom end of the second connecting shaft is keyed to the second bevel gear, and the first bevel gear is meshed with the second bevel gear.

[0008] As a further solution of the utility model, second wedge blocks are fixedly connected to both sides of the bottom of the turntable, two first wedge blocks are fixedly connected to the upper surface of the feed pipe, and the top of the first wedge block is in contact with the bottom of the second wedge block, and the top of the L-shaped plate is fixedly connected to a tension spring, and the tension spring is fixed to the connecting plate.

[0009] As a further solution of the utility model, inclined surfaces are provided on both sides of the shell in the extension direction of the feed pipe.

[0010] As a further solution of the utility model, a rubber pad is fixedly connected to the upper surface of the connecting plate, and the motor is in contact with the rubber pad.

[0011] As a further solution of the present invention, the first bevel gear is located inside the housing.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model dredges the material in the feed pipe by rotating the stirring plate, thereby preventing the powder from being easily blocked in the feed pipe and improving the dredging effect of the device.

[0014] 2. Through the coordinated use of the first wedge-shaped block and the second wedge-shaped block, the stirring plate moves up and down in the feed pipe, thereby further dredging the feed pipe and improving the dredging efficiency of the device.

[0015] 3. The exhaust fan in the utility model can extract the gas in the storage tank, so that negative pressure is formed in the storage tank, and then the feed pipe absorbs the external powdered material to achieve negative pressure feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a negative pressure feeding mechanism with a dredging function proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the enlarged structure of part A of a negative pressure feeding mechanism with a dredging function proposed by the utility model;

[0018] Figure 3 The utility model provides a schematic diagram of the cross-sectional structure of a feed pipe of a negative pressure feeding mechanism with a dredging function.

[0019] In the figure: 1. feed pipe; 2. storage tank; 3. exhaust fan; 4. tension spring; 5. turntable; 6. first wedge block; 7. second wedge block; 8. housing; 9. connecting plate; 10. guide groove; 11. L-shaped plate; 12. stirring plate; 13. inclined surface; 14. first connecting shaft; 15. first bevel gear; 16. second bevel gear; 17. second connecting shaft; 18. slide groove. DETAILED DESCRIPTION

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, so that the embodiments of the application described here, based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.

[0021] Reference Figure 1-Figure 3 A negative pressure feeding mechanism with a dredging function comprises a storage tank 2, a feeding pipe 1 is connected and fixed to the top of the storage tank 2, an exhaust fan 3 is fixed to the top outer wall of the storage tank 2 by bolts, and the air inlet of the exhaust fan 3 is connected to the storage tank 2, the exhaust fan 3 extracts the gas in the storage tank 2, so that a negative pressure is formed in the storage tank 2, so that the feeding pipe 1 absorbs the external powdered material, and a plurality of dredging components are arranged on the top of the feeding pipe 1, the dredging components include a connecting plate 9, both ends of the connecting plate 9 are provided with guide grooves 10, and the top outer wall of the feeding pipe 1 is fixed with two L-shaped plates 11 by bolts, and the guide grooves 10 can guide the L-shaped plates 11 so that they can be stably It moves up and down, and the L-shaped plate 11 is slidably connected with the guide groove 10, the bottom of the connecting plate 9 is rotatably connected with the turntable 5, a power component is provided between the connecting plate 9 and the feeding pipe 1, a slide groove 18 is provided on the top of the feeding pipe 1, and a shell 8 is extended downward in the slide groove 18, and the top of the shell 8 is fixed to the turntable 5, and the bottom end of the shell 8 is plugged and rotatably connected with a first connecting shaft 14, and the outer key of the first connecting shaft 14 is connected with a first bevel gear 15, both ends of the first connecting shaft 14 pass through the shell 8 and are fixed with a stirring plate 12 by bolts, and the power component causes the first bevel gear 15 to drive the first connecting shaft 14 to rotate, thereby causing the stirring plate 12 to rotate to clear the material in the feeding pipe 1.

[0022] In the present utility model, it should be noted that the power assembly includes a motor, which is fixed to the upper surface of the connecting plate 9 by bolts. One end of the motor output shaft passes through the connecting plate 9 and is fixed with a second connecting shaft 17 by bolts, and the turntable 5 is fixed to the second connecting shaft 17. The second connecting shaft 17 is located inside the housing 8. The bottom end of the second connecting shaft 17 is keyed to a second bevel gear 16, and the first bevel gear 15 is meshed with the second bevel gear 16. The rotation of the motor causes the first connecting shaft 14 to drive the second bevel gear 16 to rotate, thereby causing the first bevel gear 15 to drive the first connecting shaft 14 to rotate. The two sides of the bottom of the turntable 5 are respectively fixed with second wedge blocks 7 by bolts, and the upper surface of the feed pipe 1 is fixed with two first wedge blocks 6 by bolts, and the top of the first wedge block 6 is connected to the second bevel gear 16. The bottoms of the two wedge blocks 7 are in contact with each other, a tension spring 4 is welded to the top of the L-shaped plate 11, and the tension spring 4 is fixed to the connecting plate 9. The motor rotates to rotate the turntable 5, thereby rotating the second wedge block 7. The second wedge block 7 is squeezed by the first wedge block 6 during the rotation, thereby causing the connecting plate 9 to move up and down along the L-shaped plate 11, and the tension spring 4 is expanded and contracted, thereby causing the parts on the fixed connecting plate 9 to move up and down with it, wherein the stirring plate 12 moves up and down in the feed pipe 1, thereby further unblocking the feed pipe 1, and the shell 8 is provided with inclined surfaces 13 on both sides of the extension direction of the feed pipe 1, and the inclined surfaces 13 can guide the material, a rubber pad is bonded to the upper surface of the connecting plate 9, and the motor is in contact with the rubber pad, and the first bevel gear 15 is located inside the shell 8.

[0023] Working principle: when it is necessary to dredge the inside of the feed pipe 1, first start the motor, the motor rotates to make the first connecting shaft 14 drive the second bevel gear 16 to rotate, so that the first bevel gear 15 drives the first connecting shaft 14 to rotate, and then the stirring plate 12 rotates to dredge the material in the feed pipe 1, and at the same time, the motor rotates to make the turntable 5 rotate, so that the second wedge block 7 rotates, and the second wedge block 7 is squeezed by the first wedge block 6 during the rotation, so that the connecting plate 9 moves up and down along the L-shaped plate 11, and the tension spring 4 expands and contracts, so that the parts on the fixed connecting plate 9 follow it to move up and down, wherein the stirring plate 12 moves up and down in the feed pipe 1, so that the feed pipe 1 is further dredged.

[0024] The present invention has been described through the above-mentioned embodiments. Those skilled in the art will appreciate that the present invention is not limited to the above-mentioned embodiments, and more modifications may be made according to the teachings of the present invention. These modifications are all within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A negative pressure feeding mechanism with a dredging function, comprising a storage tank (2), the top of the storage tank (2) is connected and fixed with a feed pipe (1), the top outer wall of the storage tank (2) is fixedly connected with an exhaust fan (3), and the air inlet of the exhaust fan (3) is connected with the storage tank (2), characterized in that: A plurality of dredging components are provided at the top of the feed pipe (1), and the dredging components include a connecting plate (9), both ends of which are provided with guide grooves (10), two L-shaped plates (11) are fixedly connected to the top outer wall of the feed pipe (1), and the L-shaped plates (11) are slidably connected to the guide grooves (10), a turntable (5) is movably connected to the bottom of the connecting plate (9), a power component is provided between the connecting plate (9) and the feed pipe (1), a slide groove (18) is provided at the top of the feed pipe (1), a shell (8) is extended downwardly in the slide groove (18), and the top end of the shell (8) is fixed to the turntable (5), a first connecting shaft (14) is inserted and rotatably connected to the bottom end of the shell (8), the outer key of the first connecting shaft (14) is connected to the first bevel gear (15), and both ends of the first connecting shaft (14) pass through the shell (8) and are fixedly connected to the stirring plate (12).

2. A negative pressure feeding mechanism with dredging function according to claim 1, characterized in that: The power assembly comprises a motor, which is fixed to the upper surface of a connecting plate (9) by bolts, one end of the motor output shaft passes through the connecting plate (9) and is fixedly connected to a second connecting shaft (17), and the turntable (5) is fixed to the second connecting shaft (17), the second connecting shaft (17) is located inside the housing (8), the bottom end of the second connecting shaft (17) is key-connected to a second bevel gear (16), and the first bevel gear (15) is meshed with the second bevel gear (16).

3. A negative pressure feeding mechanism with dredging function according to claim 1, characterized in that: The two sides of the bottom of the turntable (5) are fixedly connected with second wedge blocks (7), the upper surface of the feed pipe (1) is fixedly connected with two first wedge blocks (6), and the top of the first wedge block (6) is in contact with the bottom of the second wedge block (7), and the top of the L-shaped plate (11) is fixedly connected with a tension spring (4), and the tension spring (4) is fixed to the connecting plate (9).

4. A negative pressure feeding mechanism with dredging function according to claim 1, characterized in that: The shell (8) is provided with inclined surfaces (13) on both sides of the shell (8) in the extension direction of the feed pipe (1).

5. The negative pressure feeding mechanism with dredging function according to claim 1, characterized in that: A rubber pad is fixedly connected to the upper surface of the connecting plate (9), and the motor is in contact with the rubber pad.

6. A negative pressure feeding mechanism with dredging function according to claim 1, characterized in that: The first bevel gear (15) is located inside the housing (8).

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