Continuous vacuum loading machine

By introducing filter plates, scrapers, and toothed plates into the vacuum feeder, the problems of material adhesion and changes in the height of the storage container are solved, thereby improving the continuity and efficiency of material conveying, preventing blockages, protecting the vacuum pump, and ensuring the purity of the material.

CN224449492UActive Publication Date: 2026-07-03HEBEI FANDU MASCH TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI FANDU MASCH TECH CO LTD
Filing Date
2025-07-23
Publication Date
2026-07-03

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  • Figure CN224449492U_ABST
    Figure CN224449492U_ABST
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Abstract

This utility model relates to the field of feeding machine technology and discloses a continuous vacuum feeding machine; it includes a chassis and a feeding cylinder, the feeding cylinder is fixed to the top of the chassis, a cylinder cover is installed on the top of the feeding cylinder, a vacuum pump is installed on the top of the cylinder cover, and the air inlet of the vacuum pump passes through the inner wall of the cylinder cover through a pipe and is equipped with an air inlet hood. This utility model uses the up and down movement of the toothed plate to drive the support rod to slide on the inner wall of the support sleeve, so that the storage cylinder can be raised and lowered, which can avoid the problem of vacuum feeding failure due to the reduction of material inside the storage cylinder, and maintain a suitable feeding distance between the material inside the storage cylinder and the feeding pipe. The material is filtered by the filter plate to prevent material particles from entering the vacuum pump. The rotation of the rotating rod can drive the connecting plate, the second scraper and the connecting rod to rotate. The rotation of the connecting plate can make the bristles clear the filter holes of the filter plate, and the second scraper can clean the adhesive on the bottom of the filter plate.
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Description

Technical Field

[0001] This utility model relates to the field of feeding machine technology, specifically a continuous vacuum feeding machine. Background Technology

[0002] A vacuum feeder is a device that uses the principle of vacuum to achieve automated material conveying. During operation, a vacuum pump creates a negative pressure environment inside the feeding cylinder. Under the action of negative pressure, the material is sucked into the feeding cylinder from the storage container through the conveying pipe. Vacuum feeders are suitable for conveying materials such as powders and granules, and have the advantages of high conveying efficiency, no dust leakage, and high degree of automation.

[0003] Existing vacuum feeders typically use vacuum pumps to feed materials. However, over time, materials can adhere to the feeder and the inner walls of the conveying pipes, causing the pipe diameter to gradually decrease and increasing resistance to material flow. This reduces conveying speed and efficiency. The adhered material may form lumps or clusters, further clogging the pipes and preventing the feeder from functioning properly. This necessitates frequent shutdowns for cleaning, affecting production continuity. Furthermore, since the height of the storage container is fixed, a decrease in the material height within the container alters the distance between the material and the feeder. As the distance increases, the negative pressure generated by the vacuum pump gradually weakens during long-distance transmission, slowing down material intake and reducing feeding efficiency. Therefore, it is necessary to provide a new continuous vacuum feeder to address these technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a continuous vacuum feeder to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a continuous vacuum feeder, comprising a chassis and a feed cylinder, wherein the feed cylinder is fixed to the top of the chassis, a cylinder cover is installed on the top of the feed cylinder, a vacuum pump is installed on the top of the cylinder cover, and the air inlet of the vacuum pump passes through the inner wall of the cylinder cover through a pipe and is fitted with an air inlet hood.

[0006] The mounting frame is fixed to the bottom of the cylinder cover, and a filter plate for filtering materials is fixed to the inner wall of the mounting frame.

[0007] A driving component is located inside the cylinder cover. A mixing component is located on the outside of the driving component. A first scraper for cleaning the inner wall of the feeding cylinder is installed on the outside of the mixing component. A connecting plate for unblocking the filter plate is located on the outside of the driving component.

[0008] A storage cylinder is located at the bottom of the feeding cylinder. A support rod is fixed to the bottom of the storage cylinder. A support sleeve is slidably connected to the outside of the support rod. A toothed plate is fixed to the outside of the support rod. A drive gear is meshed with the outside of the toothed plate.

[0009] Preferably, the driving component includes a first motor fixed to the top of the cylinder cover, the output end of the first motor passing through the inner wall of the cylinder cover and fixed with a rotating rod, and the outer side of the rotating rod being fixed to the inner wall of the connecting plate.

[0010] Preferably, the mixing component includes a first stirring paddle fixed to the outside of the rotating rod, a connecting frame fixed to the outside of the rotating rod, a second stirring paddle fixed to the inner wall of the connecting frame, and one side of the first scraper fixed to the outside of the connecting frame.

[0011] Preferably, a mounting plate is fixed to the outer side of the cylinder cover, a mounting bracket is fixed to the outer side of the feeding cylinder, and the mounting plate and the mounting bracket are fixed by bolts. A sealing gasket to improve the sealing performance of the cylinder cover is installed on the top of the feeding cylinder.

[0012] Preferably, the bottom of the feeding cylinder is connected to a feeding pipe, the inner wall of the feeding cylinder is connected to a discharge pipe, a second scraper for cleaning the bottom of the filter plate is fixed on the outer side of the rotating rod, and a connecting rod for unblocking the feeding pipe is fixed on the bottom of the rotating rod.

[0013] Preferably, a fixing frame is fixed to the outer side of the support sleeve, and a second motor is fixed to the outer side of the fixing frame, with the output end of the second motor fixed to the shaft of the drive gear.

[0014] Preferably, a support base is fixed to the top of the chassis, a guide rod is slidably connected to the inner wall of the support base, and the top of the guide rod is fixed to the bottom of the storage cylinder. A feed pipe is connected to the inner wall of the storage cylinder.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention uses the up-and-down movement of the toothed plate to drive the support rod to slide on the inner wall of the support sleeve, thereby raising and lowering the storage cylinder. This avoids the problem of insufficient material inside the storage cylinder leading to vacuum feeding failure, and maintains a suitable feeding distance between the material inside the storage cylinder and the feeding pipe. The material is filtered by the filter plate to prevent material particles from entering the vacuum pump. The rotation of the rotating rod can drive the connecting plate, the second scraper, and the connecting rod to rotate. The rotation of the connecting plate can cause the bristles to unclog the filter holes of the filter plate, the second scraper can clean the adhesive on the bottom of the filter plate, and the connecting rod can unclog the feeding pipe to prevent blockage. Attached Figure Description

[0017] Figure 1A schematic diagram of a preferred embodiment of the continuous vacuum feeder provided by this utility model;

[0018] Figure 2 This is a schematic diagram of the upper feed cylinder in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the middle cylinder cover of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the storage cylinder in this utility model.

[0021] In the diagram: 1. Chassis; 2. Feeding cylinder; 3. Cylinder cover; 4. Vacuum pump; 5. Air inlet hood; 6. Mounting frame; 7. Filter plate; 8. Drive component; 81. First motor; 82. Rotating rod; 9. Mixing component; 91. First stirring paddle; 92. Connecting frame; 93. Second stirring paddle; 10. First scraper; 11. Connecting plate; 12. Storage cylinder; 13. Support rod; 14. Support sleeve; 15. Toothed plate; 16. Drive gear; 17. Mounting plate; 18. Mounting frame; 19. Sealing gasket; 20. Feeding pipe; 21. Discharge pipe; 22. Second scraper; 23. Connecting rod; 24. Fixing frame; 25. Second motor; 26. Support base; 27. Guide rod; 28. Feeding pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 As shown, the continuous vacuum feeder includes a chassis 1 and a feeding cylinder 2. The feeding cylinder 2 is fixed to the top of the chassis 1. A cylinder cover 3 is installed on the top of the feeding cylinder 2. A vacuum pump 4 is installed on the top of the cylinder cover 3. The air inlet of the vacuum pump 4 passes through the inner wall of the cylinder cover 3 through a pipe and is equipped with an air inlet hood 5.

[0024] The vacuum pump 4 generates a vacuum in the feeding cylinder 2 through the pipe and the air inlet hood 5, and uses the negative pressure principle to draw the material into the feeding cylinder 2, which is the power source for material conveying.

[0025] The mounting frame 6 is fixed to the bottom of the cylinder cover 3, and a filter plate 7 for filtering materials is fixed to the inner wall of the mounting frame 6.

[0026] The material is filtered by the filter plate 7 to prevent material particles from entering the vacuum pump 4, protect the vacuum pump 4 from damage, and ensure the purity of the conveyed material.

[0027] The driving component 8 is located inside the cylinder cover 3. A mixing component 9 is located on the outside of the driving component 8. A first scraper 10 for cleaning the inner wall of the feeding cylinder 2 is installed on the outside of the mixing component 9. A connecting plate 11 for unblocking the filter plate 7 is located on the outside of the driving component 8.

[0028] The material inside the feeding cylinder 2 is mixed by the driving component 8 and the mixing component 9 to prevent the material from clumping or bridging. The inner wall of the feeding cylinder 2 can be cleaned by the first scraper 10. The bottom of the connecting plate 11 is provided with bristles slightly smaller than the aperture of the filter plate 7. The bristles can be used to clear the filter holes of the filter plate 7 by rotating the connecting plate 11.

[0029] The storage cylinder 12 is located at the bottom of the feeding cylinder 2. A support rod 13 is fixed at the bottom of the storage cylinder 12. A support sleeve 14 is slidably connected to the outside of the support rod 13. A toothed plate 15 is fixed to the outside of the support rod 13. A drive gear 16 is meshed with the outside of the toothed plate 15.

[0030] The support sleeve 14 is fixed to the top of the chassis 1. The material is stored in the storage cylinder 12. The drive gear 16 rotates and drives the toothed plate 15 to move up and down, so that the support rod 13 slides on the inner wall of the support sleeve 14, thereby driving the storage cylinder 12 to rise and fall, avoiding the problem of vacuum feeding failure due to the reduction of material inside the storage cylinder 12.

[0031] The driving component 8 includes a first motor 81 fixed to the top of the cylinder cover 3. The output end of the first motor 81 passes through the inner wall of the cylinder cover 3 and is fixed with a rotating rod 82. The outer side of the rotating rod 82 is fixed to the inner wall of the connecting plate 11. The mixing component 9 includes a first stirring paddle 91 fixed to the outer side of the rotating rod 82. A connecting frame 92 is fixed to the outer side of the rotating rod 82. A second stirring paddle 93 is fixed to the inner wall of the connecting frame 92. One side of the first scraper 10 is fixed to the outer side of the connecting frame 92.

[0032] The first motor 81 drives the rotating rod 82 to rotate, which in turn drives the first stirring paddle 91 and the connecting frame 92 to rotate. The connecting frame 92 then drives the second stirring paddle 93 to rotate, thus stirring the material in the feed cylinder 2 and preventing the material from clumping or bridging.

[0033] An mounting plate 17 is fixed to the outside of the cylinder cover 3, and an mounting bracket 18 is fixed to the outside of the feeding cylinder 2. The mounting plate 17 and the mounting bracket 18 are fixed by bolts. A sealing gasket 19 to improve the sealing performance of the cylinder cover 3 is installed on the top of the feeding cylinder 2.

[0034] The mounting plate 17 and mounting bracket 18 are fixed with bolts to install and fix the cylinder cover 3, and the sealing gasket 19 improves the sealing performance between the cylinder cover 3 and the feeding cylinder 2.

[0035] The bottom of the feeding cylinder 2 is connected to the feeding pipe 20, and the inner wall of the feeding cylinder 2 is connected to the discharge pipe 21. A second scraper 22 for cleaning the bottom of the filter plate 7 is fixed on the outside of the rotating rod 82, and a connecting rod 23 for unblocking the feeding pipe 20 is fixed on the bottom of the rotating rod 82.

[0036] Material inside the storage cylinder 12 can be fed into the feeding cylinder 2 via the feeding pipe 20 through the vacuum pump 4. Material can be transported to subsequent equipment via the discharge pipe 21. Rotation of the rotating rod 82 can drive the connecting plate 11, the second scraper 22 and the connecting rod 23 to rotate. Rotation of the connecting plate 11 can make the bristles clear the filter holes of the filter plate 7. The second scraper 22 can clean the adhesive on the bottom of the filter plate 7. The connecting rod 23 can clear the feeding pipe 20 to prevent blockage.

[0037] A fixing frame 24 is fixed to the outside of the support sleeve 14, and a second motor 25 is fixed to the outside of the fixing frame 24. The output end of the second motor 25 is fixed to the shaft of the drive gear 16.

[0038] The second motor 25 can drive the drive gear 16 to rotate, providing rotational power to the drive gear 16.

[0039] A support base 26 is fixed to the top of the chassis 1. A guide rod 27 is slidably connected to the inner wall of the support base 26. The top of the guide rod 27 is fixed to the bottom of the storage cylinder 12. A feed pipe 28 is connected to the inner wall of the storage cylinder 12.

[0040] The lifting and lowering of the storage cylinder 12 causes the guide rod 27 to slide on the inner wall of the support base 26, thereby improving the stability of the storage cylinder 12.

[0041] Working principle: The vacuum pump 4 is started, creating a vacuum environment in the feeding cylinder 2 through the pipe and air inlet hood 5. Due to the negative pressure principle, material is drawn from the storage cylinder 12 into the feeding cylinder 2 through the feeding pipe 20. The material is filtered by the filter plate 7 to prevent material particles from entering the vacuum pump 4, protecting it from damage and ensuring the purity of the conveyed material. The first motor 81 drives the rotating rod 82 to rotate, which in turn drives the first stirring paddle 91 and the connecting frame 92 to rotate. The connecting frame 92 drives the second stirring paddle 93 to rotate, stirring the material in the feeding cylinder 2 and preventing clumping or bridging. The rotation of the rotating rod 82 also drives the connecting plate 11 and the second scraper... The plate 22 and connecting rod 23 rotate. The rotation of the connecting plate 11 allows the bristles to clear the filter holes of the filter plate 7. The second scraper 22 can clean the adhesive on the bottom of the filter plate 7. The connecting rod 23 can clear the feed pipe 20 to prevent blockage. The second motor 25 is started to drive the drive gear 16 to rotate. Since the drive gear 16 is meshed with the toothed plate 15, the toothed plate 15 will move up and down, thereby driving the support rod 13 to slide on the inner wall of the support sleeve 14, so that the storage cylinder 12 can be raised and lowered. This can avoid the problem of insufficient vacuum feeding due to the reduction of material inside the storage cylinder 12, and maintain a suitable feeding distance between the material inside the storage cylinder 12 and the feed pipe 20.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Continuous vacuum loader comprising a chassis (1), characterized in that, Also includes: The feeding cylinder (2) is fixed to the top of the chassis (1). The top of the feeding cylinder (2) is equipped with a cylinder cover (3). The top of the cylinder cover (3) is equipped with a vacuum pump (4). The air inlet of the vacuum pump (4) passes through the inner wall of the cylinder cover (3) through a pipe and is equipped with an air inlet cover (5). The mounting frame (6) is fixed to the bottom of the cylinder cover (3), and the inner wall of the mounting frame (6) is fixed with a filter plate (7) for filtering materials. A drive unit (8) is located inside the cylinder cover (3). A mixing unit (9) is provided on the outside of the drive unit (8). A first scraper (10) for cleaning the inner wall of the feed cylinder (2) is installed on the outside of the mixing unit (9). A connecting plate (11) for unblocking the filter plate (7) is provided on the outside of the drive unit (8). A storage cylinder (12) is located at the bottom of the feeding cylinder (2). A support rod (13) is fixed at the bottom of the storage cylinder (12). A support sleeve (14) is slidably connected to the outside of the support rod (13). A toothed plate (15) is fixed to the outside of the support rod (13). A drive gear (16) is meshed with the outside of the toothed plate (15).

2. The continuous vacuum upender of claim 1, wherein: The driving component (8) includes a first motor (81) fixed to the top of the cylinder cover (3). The output end of the first motor (81) passes through the inner wall of the cylinder cover (3) and is fixed with a rotating rod (82). The outer side of the rotating rod (82) is fixed to the inner wall of the connecting plate (11).

3. The continuous vacuum upender of claim 2, wherein: The mixing component (9) includes a first stirring paddle (91) fixed to the outside of the rotating rod (82), a connecting frame (92) fixed to the outside of the rotating rod (82), a second stirring paddle (93) fixed to the inner wall of the connecting frame (92), and one side of the first scraper (10) fixed to the outside of the connecting frame (92).

4. The continuous vacuum upender of claim 1, wherein: An mounting plate (17) is fixed to the outside of the cylinder cover (3), and an mounting bracket (18) is fixed to the outside of the feeding cylinder (2). The mounting plate (17) and the mounting bracket (18) are fixed by bolts. A sealing gasket (19) to improve the sealing performance of the cylinder cover (3) is installed on the top of the feeding cylinder (2).

5. The continuous vacuum upender of claim 2, wherein: The bottom of the feeding cylinder (2) is connected to the feeding pipe (20), the inner wall of the feeding cylinder (2) is connected to the discharge pipe (21), the outer side of the rotating rod (82) is fixed with a second scraper (22) for cleaning the bottom of the filter plate (7), and the bottom of the rotating rod (82) is fixed with a connecting rod (23) for unblocking the feeding pipe (20).

6. The continuous vacuum upender of claim 1, wherein: A fixing frame (24) is fixed to the outside of the support sleeve (14), and a second motor (25) is fixed to the outside of the fixing frame (24), and the output end of the second motor (25) is fixed to the axis of the drive gear (16).

7. The continuous vacuum upender of claim 1, wherein: The top of the chassis (1) is fixed with a support base (26), and the inner wall of the support base (26) is slidably connected with a guide rod (27). The top of the guide rod (27) is fixed with the bottom of the storage cylinder (12), and the inner wall of the storage cylinder (12) is connected with a feed pipe (28).