Feeding device of central vacuum hopper

Abstract

The utility model relates to the technical field of vacuum hoppers, in particular to a feeding device of a central vacuum hopper, which comprises a mounting cover plate, a feeding bin arranged at the upper end of the mounting cover plate, a fixing cover arranged at the upper end of the feeding bin, a lifting mechanism arranged on the inner side of the feeding bin, and a closing piece arranged at the lower end of the mounting cover plate. A spiral blade is arranged at the upper end of the closing piece, a spline sleeve is arranged at the upper end of the spiral blade, a spline shaft is arranged on the inner side of the spline sleeve, a first driving piece used for controlling the lifting mechanism to ascend and descend is arranged at the upper end of the fixing cover, and a second driving piece used for controlling the spline shaft to rotate is further arranged at the upper end of the fixing cover. The feeding device is automatically started and stopped by controlling the material guiding piece and the sealing ring to ascend and descend, the spline shaft is controlled to rotate, the spline sleeve drives the spiral blade to rotate, materials are scattered and guided, auxiliary material guiding of the materials is achieved, blockage and damage to equipment when the materials are caked are avoided, and the feeding device is safe and reliable. And the material conveying stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum hopper technology, and in particular to a feeding device for a central vacuum hopper. Background Technology

[0002] The central vacuum hopper is a core conveying device integrated into a central feeding system, primarily used for the automated supply and control of raw materials in industries such as plastics, chemicals, and pharmaceuticals. Essentially, it achieves closed-loop material transport and precise quantitative dispensing through vacuum adsorption technology. It is a crucial link in raw material handling within modern continuous production lines. Its core functions include closed-loop conveying, precise control, multi-equipment compatibility, and compliance with stringent GMP and explosion-proof environmental requirements. Real-time monitoring of material status via magnetic reed switches or photoelectric switches ensures synchronization between material supply and production cycle. It can be adapted to equipment such as dryers, mixers, and storage tanks, forming a complete chain for raw material conveying, dehumidification, and blending.

[0003] For example, patent number CN209080656U discloses a powder vacuum hopper, including a material barrel. The material barrel has a vertical plane on the front and an arc surface on the back. A feeding device is installed on the upper side of the material barrel. A stirring device is horizontally installed at the bottom of the material barrel. The stirring device is driven by a motor. A discharge port is provided on the front bottom of the material barrel. The powder vacuum hopper of this utility model has a uniform discharge volume.

[0004] However, the existing central vacuum hopper feeding device cannot flexibly control the opening and closing of the feeding pipe when it is not in use. At the same time, it lacks an auxiliary material guiding structure, which makes it easy to cause blockage when the material clumps together, thus damaging the equipment. Utility Model Content

[0005] To overcome the problem that the feeding device of the central vacuum hopper cannot flexibly control the opening and closing of the feeding pipe when it is not in use, and also lacks an auxiliary material guiding structure.

[0006] The technical solution of this utility model is as follows: a feeding device for a central vacuum hopper, including a mounting cover plate, a feeding bin at the upper end of the mounting cover plate, a fixed cover at the upper end of the feeding bin, a lifting mechanism at the inner side of the feeding bin, a closing member at the lower end of the mounting cover plate, a spiral blade at the upper end of the closing member, a spline sleeve at the upper end of the spiral blade, a spline shaft at the inner side of the spline sleeve, a driving member one for controlling the lifting mechanism at the upper end of the fixed cover, and a driving member two for controlling the rotation of the spline shaft at the upper end of the fixed cover.

[0007] The closure includes a guide component, and a sealing ring is fixedly installed at the lower end of the guide component. The sealing ring is used to close or open the lower end of the feeding hopper.

[0008] Preferably, by setting an installation cover plate, the feeding device and the central vacuum hopper can be sealed and connected. By setting a fixed cover, the internal structure of the feeding device can be disassembled and maintained. By setting a closing element, the opening and closing of the lower end of the feeding device can be controlled. By setting a spline shaft and a spline sleeve, the drive component can transmit power to the spiral blades.

[0009] Preferably, the lower ends of the feeding hopper and the mounting cover are connected to each other, the upper ends of the fixed cover and the feeding hopper are sealed together, and the side of the feeding hopper is connected to an inlet pipe joint for connecting to the material conveying pipeline.

[0010] Preferably, the lifting mechanism includes a lifting frame, the upper end of which is provided with a collar for fitting a spline sleeve, and the left and right sides of the lower end of the lifting frame are provided with connecting plates for connecting the closure.

[0011] Preferably, the guide component has a bucket-shaped structure design, and the surface of the guide component is provided with a mounting base for connecting the lifting frame. The mounting base and the connecting plate are detachably connected by bolts.

[0012] Preferably, the driving component is a telescopic cylinder, the output end of which extends to the lower end of the fixed cover and is fixedly connected to the upper end of the lifting frame.

[0013] Preferably, the lower end of the spiral blade is rotatably connected to the guide, the upper end of the spiral blade is fixedly connected to the spline sleeve, and the spline sleeve and the outer side of the spline shaft are slidably sleeved together.

[0014] Preferably, the second driving component is a drive motor. Both the telescopic cylinder and the drive motor are fixedly connected to the upper end of the fixed cover, and the output end of the drive motor extends to the lower end of the fixed cover and is fixedly connected to the upper end of the spline shaft.

[0015] The beneficial effects of this utility model are:

[0016] 1. The feeding device of this central vacuum hopper automatically opens and closes by controlling the lifting and lowering of the guide components and sealing rings. By controlling the rotation of the spline shaft, the spline sleeve drives the spiral blades to rotate, which scatters and guides the material, thus assisting in the material feeding and preventing blockage when the material clumps, which could damage the equipment and improve the stability of material conveying.

[0017] 2. The feeding device of this central vacuum hopper can be removed by disassembling the guide component from the lower end of the mounting cover plate and then removing the fixed cover from the upper end of the feeding hopper, which can then pull the internal structure out of the feeding hopper together, making it convenient for the device to be inspected and maintained. Attached Figure Description

[0018] Figure 1 The diagram shown is a three-dimensional structural representation of the feeding device for the central vacuum hopper of this utility model. Figure 1 ;

[0019] Figure 2 The diagram shown is a three-dimensional structural representation of the feeding device for the central vacuum hopper of this utility model. Figure 2 ;

[0020] Figure 3 The diagram shown is a three-dimensional structural representation of the feeding device for the central vacuum hopper of this utility model. Figure 3 ;

[0021] Figure 4 The diagram shown is a three-dimensional cross-sectional view of the feeding device of the central vacuum hopper of this utility model. Figure 1 ;

[0022] Figure 5 The diagram shown is a three-dimensional cross-sectional view of the feeding device of the central vacuum hopper of this utility model. Figure 2 .

[0023] Explanation of reference numerals in the attached diagram: 1. Mounting cover plate; 2. Feeding hopper; 3. Fixed cover; 4. Spiral blade; 5. Spline sleeve; 6. Spline shaft; 7. Lifting frame; 8. Guide component; 9. Sealing ring; 10. Telescopic cylinder; 11. Drive motor. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Please see Figures 1-5 This utility model provides an embodiment of a central vacuum hopper feeding device, including a mounting cover plate 1, a feeding bin 2 at the upper end of the mounting cover plate 1, a fixed cover 3 at the upper end of the feeding bin 2, a lifting mechanism at the inner side of the feeding bin 2, a closing member at the lower end of the mounting cover plate 1, a spiral blade 4 at the upper end of the closing member, a spline sleeve 5 at the upper end of the spiral blade 4, a spline shaft 6 at the inner side of the spline sleeve 5, a first driving member for controlling the lifting mechanism at the upper end of the fixed cover 3, and a second driving member for controlling the rotation of the spline shaft 6 at the upper end of the fixed cover 3.

[0026] The closing component includes a guide component 8, and a sealing ring 9 is fixedly installed at the lower end of the guide component 8. The sealing ring 9 is used to close or open the lower end of the feeding hopper 2. By controlling the lifting and lowering of the guide component 8 and the sealing ring 9, the automatic opening and closing of the feeding device can be realized. By controlling the rotation of the spline shaft 6, the spline sleeve 5 drives the spiral blade 4 to rotate, which scatters and guides the material. When it is necessary to inspect and maintain the internal structure of the feeding device, the mounting cover 1 can be removed from the upper end of the central vacuum hopper, and the guide component 8 can be disassembled. Then, the fixed cover 3 can be removed from the upper end of the feeding hopper 2, and the internal structure can be taken out of the feeding hopper 2 together, which facilitates the inspection and maintenance of each structure of the device.

[0027] Please see Figures 1-4In this embodiment, the lower ends of the feeding hopper 2 and the mounting cover 1 are connected to each other, the fixed cover 3 is sealed to the upper end of the feeding hopper 2, and the side of the feeding hopper 2 is connected to a feed pipe joint for connecting to a material conveying pipeline. The lifting mechanism includes a lifting frame 7, the upper end of the lifting frame 7 is provided with a collar for fitting a spline sleeve 5, and the left and right sides of the lower end of the lifting frame 7 are provided with connecting plates for connecting the closing member. The guide member 8 has a bucket-shaped structure design, and the surface of the guide member 8 is provided with a mounting seat for connecting the lifting frame 7. The mounting seat and the connecting plate are detachably connected by bolts. The driving component is a telescopic cylinder 10. The output end of 10 extends to the lower end of the fixed cover 3 and the upper end of the lifting frame 7 and is fixedly connected. The mounting cover 1 is sealed to the upper end of the central vacuum hopper, so that the feeding bin 2 and the central vacuum hopper are connected to each other. The material conveying pipe is sealed to the feed pipe joint on the side of the feeding bin 2, so as to realize the installation docking of the feeding device. The material can be input into the feeding bin 2 through the feed pipe joint. The lifting frame 7 is controlled to descend by the telescopic cylinder 10, so that the guide 8 and the sealing ring 9 descend, and the sealing ring 9 is released from the blockage of the lower end of the feeding bin 2, so as to realize the automatic opening of the lower end of the feeding device and facilitate subsequent automatic sealing.

[0028] Please see Figures 2-5 In this embodiment, the lower end of the spiral blade 4 is rotatably connected to the guide component 8, the upper end of the spiral blade 4 is fixedly connected to the spline sleeve 5, the spline sleeve 5 is slidably sleeved to the outer side of the spline shaft 6, the second driving component is the drive motor 11, the telescopic cylinder 10 and the drive motor 11 are both fixedly connected to the upper end of the fixed cover 3, the output end of the drive motor 11 extends to the lower end of the fixed cover 3 and is fixedly connected to the upper end of the spline shaft 6, the drive motor 11 controls the spline shaft 6 to rotate, so that the spline sleeve 5 drives the spiral blade 4 to rotate, to scatter and guide the material, and to realize the auxiliary material guiding. The telescopic cylinder 10 and the drive motor 11 can be replaced with other drive structures.

[0029] During operation, the lifting frame 7 is lowered by the telescopic cylinder 10, causing the guide component 8 and the sealing ring 9 to descend, releasing the seal of the sealing ring 9 from the lower end of the feeding hopper 2. The drive motor 11 controls the spline shaft 6 to rotate, causing the spline sleeve 5 to drive the spiral blade 4 to rotate, scattering and guiding the material, thus achieving auxiliary material guiding. When it is necessary to inspect and maintain the internal structure of the feeding device, the mounting cover 1 is removed from the upper end of the central vacuum hopper, and the guide component 8 can be disassembled. Then, the fixed cover 3 is removed from the upper end of the feeding hopper 2, which allows the internal structure to be taken out of the feeding hopper 2 together, facilitating the inspection and maintenance of each structure of the device.

[0030] Through the above steps, by controlling the lifting and lowering of the guide component 8 and the sealing ring 9, the automatic opening and closing of the feeding device is realized. By controlling the rotation of the spline shaft 6, the spline sleeve 5 drives the spiral blade 4 to rotate, which scatters and guides the material, thereby achieving auxiliary material guiding, avoiding material blockage, and improving the stability of material conveying. This solves the problem that the feeding device of the central vacuum hopper cannot flexibly control the opening and closing of the feeding pipe when it is not in use, and also lacks an auxiliary material guiding structure.

Claims

1. A feeding device of a central vacuum hopper, comprising a mounting cover plate (1), characterized in that: The upper end of the installation cover plate (1) is provided with an upper feed bin (2), the upper end of the upper feed bin (2) is provided with a fixed cover (3), the inner side of the upper feed bin (2) is provided with a lifting mechanism, the lower end of the installation cover plate (1) is provided with a closure, the upper end of the closure is provided with a spiral blade (4), the upper end of the spiral blade (4) is provided with a spline sleeve (5), the inner side of the spline sleeve (5) is provided with a spline shaft (6), the upper end of the fixed cover (3) is provided with a driving part one for controlling the lifting of the lifting mechanism, and the upper end of the fixed cover (3) is also provided with a driving part two for controlling the rotation of the spline shaft (6). The closure comprises a material guiding part (8), the lower end of the material guiding part (8) is fixedly provided with a sealing ring (9), and the sealing ring (9) is used to close or open the lower end of the upper feed bin (2).

2. The central vacuum hopper loading apparatus of claim 1, wherein: The lower end of the upper feed bin (2) and the installation cover plate (1) are connected to each other, the upper end of the fixed cover (3) and the upper feed bin (2) are sealingly connected, and the side of the upper feed bin (2) is connected with a feed pipe joint for connecting a material conveying pipeline.

3. The central vacuum hopper loading apparatus of claim 1, wherein: The lifting mechanism comprises a lifting frame (7), the upper end of the lifting frame (7) is provided with a sleeve ring for sleeving the spline sleeve (5), and the left and right sides of the lower end of the lifting frame (7) are provided with connecting plates for connecting the closure.

4. The central vacuum hopper loading apparatus of claim 3, wherein: The material guiding part (8) is designed in a bucket structure, the surface of the material guiding part (8) is provided with a mounting seat for connecting the lifting frame (7), and the mounting seat and the connecting plate are detachably connected through bolts.

5. A central vacuum hopper loading device according to claim 4, wherein: The driving part one is a telescopic cylinder (10), the output end of the telescopic cylinder (10) extends to and is fixedly connected with the lower end of the fixed cover (3) and the upper end of the lifting frame (7).

6. The central vacuum hopper loading apparatus of claim 1, wherein: The lower end of the spiral blade (4) is rotatably connected with the material guiding part (8), the upper end of the spiral blade (4) is fixedly connected with the spline sleeve (5), and the spline sleeve (5) and the outer side of the spline shaft (6) are slidably sleeved.

7. The central vacuum hopper loading apparatus of claim 1, wherein: The driving part two is a driving motor (11), the telescopic cylinder (10) and the driving motor (11) are fixedly connected with the upper end of the fixed cover (3), and the output end of the driving motor (11) extends to and is fixedly connected with the lower end of the fixed cover (3) and the upper end of the spline shaft (6).

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