Solid powder vacuum feeding device

Abstract

The utility model discloses a solid powder vacuum feeding device which comprises a discharging bin, the right surface of the discharging bin is fixedly connected with a feeding pipe, the outer surface of the feeding pipe is fixedly connected with a first flange plate, the lower surface of the discharging bin is fixedly connected with a discharging pipe, and the outer surface of the discharging pipe is fixedly connected with a second flange plate. A vacuum pump is fixedly connected to the left surface of the discharging bin, a connecting pipe is fixedly connected to the input end of the vacuum pump, an exhaust pipe is fixedly connected to the output end of the vacuum pump, and a positioning block is fixedly connected to the inner surface of the discharging bin. Through the arrangement of a sliding block, an inserting rod, a limiting block and other structures, after the sliding block is operated, fixing of the connecting plate, the connecting ring, the filter plate and other structures can be relieved, and therefore the filter plate can be directly pulled out of the discharging bin to be cleaned, maintained and the like, the air circulation performance and the filtering effect of the filter plate are ensured, and simplicity and rapidness are achieved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum feeding devices, and in particular to a vacuum feeding device for solid powder. Background Technology

[0002] A vacuum feeding device is a material conveying device that utilizes the principle of vacuum negative pressure. It is widely used in industries such as chemical, pharmaceutical, food, plastics, and metallurgy. It creates a vacuum environment within the pipeline, drawing material in from the inlet and conveying it to a designated location. It features high efficiency, cleanliness, and safety, and is particularly suitable for conveying powders, granules, and flakes.

[0003] In the prior art, filter plates are usually used to filter and block raw materials from entering the vacuum pump. However, after a period of use, the filter screen will inevitably experience a decrease in filtration efficiency and air circulation. Since the filter screen is usually located inside the feed hopper, it is inconvenient to carry out a series of tasks such as cleaning and maintenance of the filter screen. Utility Model Content

[0004] The purpose of this invention is to provide a solid powder vacuum feeding device that can quickly and conveniently remove the filter plate from the feeding hopper for cleaning and maintenance.

[0005] To achieve the above objectives, a solid powder vacuum feeding device is provided, comprising a feeding hopper, a feed pipe fixedly connected to the right surface of the feeding hopper, a first flange fixedly connected to the outer surface of the feed pipe, a discharge pipe fixedly connected to the lower surface of the feeding hopper, a second flange fixedly connected to the outer surface of the discharge pipe, a vacuum pump fixedly connected to the left surface of the feeding hopper, a connecting pipe fixedly connected to the input end of the vacuum pump, an exhaust pipe fixedly connected to the output end of the vacuum pump, a positioning block fixedly connected to the inner surface of the feeding hopper, a connecting plate movably connected to the inner surface of the feeding hopper, a connecting ring fixedly connected to the left surface of the connecting plate, the outer surface of the connecting ring movably connected to the positioning block, a filter plate fixedly connected to the inner surface of the connecting ring, a first sealing ring fixedly connected to the inner surface of the feeding hopper, and a second sealing ring fixedly connected to the inner surface of the connecting plate.

[0006] A connecting frame is fixedly connected to the right surface of the feeding hopper. Two insert rods are slidably connected to the inner surface of the connecting frame. A slider is fixedly connected to each of the two insert rods. A spring is slidably sleeved on the outer surface of each of the two insert rods. Two recessed blocks are fixedly connected to the right surface of the connecting plate. A T-shaped block is slidably connected to the inner surface of each of the two recessed blocks. A limit block is fixedly connected to the side surface of each of the two T-shaped blocks. The outer surfaces of the two insert rods are movably connected to the two limit blocks respectively.

[0007] According to the solid powder vacuum feeding device, a handle is fixedly connected to the right surface of the connecting plate, and the outer surface of the connecting pipe is fixedly connected to the feeding hopper.

[0008] According to the solid powder vacuum feeding device, a T-shaped groove is provided on the concave block, and the outer surface of the T-shaped block is slidably connected to the T-shaped groove.

[0009] According to the aforementioned solid powder vacuum feeding device, the limiting block has a slot, and the outer surface of the insertion rod is movably connected to the slot.

[0010] According to the solid powder vacuum feeding device, one end of the spring is fixedly connected to the inner side wall of the connecting frame, and the end of the spring away from the connecting frame is fixedly connected to the side surface of the slider.

[0011] According to the solid powder vacuum feeding device, the positioning block is provided with a positioning groove, and the outer surface of the connecting ring is movably connected to the positioning groove.

[0012] According to the solid powder vacuum feeding device, the left surface of the connecting plate is in contact with the positioning block, and the inner surface of the first sealing ring is in contact with the second sealing ring.

[0013] According to the solid powder vacuum feeding device, the left surface of the slider is in contact with the connecting frame.

[0014] The above-mentioned solution has the following beneficial effects:

[0015] 1. By using a slider, insert rod, and limit block, the connection plate, connecting ring, and filter plate can be released by operating the slider. This allows the filter plate to be directly pulled out of the feeding hopper for cleaning and maintenance, ensuring the airflow performance and filtration effect of the filter plate. It is simple and quick.

[0016] 2. By setting up structures such as the first sealing ring and the second sealing ring, the sealing between the connecting plate and the feeding hopper can be ensured, thereby ensuring that the kinetic energy of compressed air is efficiently converted into the conveying power of powder, and avoiding the problem of reduced conveying speed due to insufficient sealing effect.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a schematic diagram of the overall structure of a vacuum feeding device for solid powder according to the present invention;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the feeding hopper of a solid powder vacuum feeding device according to this utility model;

[0021] Figure 3 This utility model relates to a vacuum feeding device for solid powder. Figure 2 Schematic diagram of the mid-section section;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the concave block of a solid powder vacuum feeding device according to this utility model;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the connecting frame of the solid powder vacuum feeding device of this utility model;

[0024] Figure 6 This is a schematic diagram of the cross-sectional structure of the positioning block of a solid powder vacuum feeding device according to the present invention.

[0025] Legend:

[0026] 1. Feeding hopper; 2. Feed pipe; 3. First flange; 4. Discharge pipe; 5. Second flange; 6. Vacuum pump; 7. Connecting pipe; 8. Exhaust pipe; 9. Positioning block; 10. Connecting plate; 11. Connecting ring; 12. Filter plate; 13. First sealing ring; 14. Second sealing ring; 15. Connecting frame; 16. Insert rod; 17. Slider; 18. Spring; 19. Recessed block; 20. T-block; 21. Limiting block; 22. Handle; 23. T-slot; 24. Slot; 25. Positioning slot. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] Reference Figure 1-6This utility model discloses a solid powder vacuum feeding device, comprising a feeding hopper 1, a feed pipe 2 fixedly connected to the right surface of the feeding hopper 1, a first flange 3 fixedly connected to the outer surface of the feed pipe 2, a discharge pipe 4 fixedly connected to the lower surface of the feeding hopper 1, a second flange 5 fixedly connected to the outer surface of the discharge pipe 4, a vacuum pump 6 fixedly connected to the left surface of the feeding hopper 1, a connecting pipe 7 fixedly connected to the input end of the vacuum pump 6, an exhaust pipe 8 fixedly connected to the output end of the vacuum pump 6, a positioning block 9 fixedly connected to the inner surface of the feeding hopper 1, and a connecting plate 10 movably connected to the inner surface of the feeding hopper 1. A connecting ring 11 is fixedly connected to the left surface of plate 10. The outer surface of the connecting ring 11 is movably connected to the positioning block 9. A filter plate 12 is fixedly connected to the inner surface of the connecting ring 11. A first sealing ring 13 is fixedly connected to the inner surface of the feeding hopper 1. A second sealing ring 14 is fixedly connected to the inner surface of the connecting plate 10. A handle 22 is fixedly connected to the right surface of the connecting plate 10. The outer surface of the connecting pipe 7 is fixedly connected to the feeding hopper 1. A positioning groove 25 is provided on the positioning block 9. The outer surface of the connecting ring 11 is movably connected to the positioning groove 25. The left surface of the connecting plate 10 is in contact with the positioning block 9. The inner surface of the first sealing ring 13... The surface contacts the second sealing ring 14. It should be noted that during the use of the device, the discharge position of the discharge pipe 4 is first connected to the discharge valve via the second flange 5 to ensure the sealing of the area below the discharge hopper 1 and the suction effect of the feed pipe 2. Then, the entire device is connected to the feed inlet of the subsequent processing device via the discharge valve to ensure that the powder raw material in the discharge hopper 1 can enter the subsequent processing device through the discharge pipe 4 and the discharge valve after the discharge valve is opened. Furthermore, the suction pipe can be connected to the feed pipe 2 via the first flange 3 on the feed pipe 2 to ensure the smooth flow of raw materials. After the material enters the feeding hopper 1, the vacuum pump 6 is started to vacuum the feeding hopper 1. The suction pipe is then placed into the powder raw material. The raw material enters the feeding hopper 1 through the suction pipe and the feed pipe 2. The filter plate 12 prevents the powder raw material from entering the vacuum pump 6 along with the connecting pipe 7. When air enters the vacuum pump 6, it will be discharged back into the external environment through the exhaust pipe 8. After enough raw material enters the feeding hopper 1, the feeding valve connected to the discharge pipe 4 is opened, allowing the raw material in the feeding hopper 1 to be discharged into the processing device through the discharge pipe 4 and the feeding valve, thus completing the feeding operation.

[0029] A connecting frame 15 is fixedly connected to the right surface of the feeding hopper 1. Two insert rods 16 are slidably connected to the inner surface of the connecting frame 15. A slider 17 is fixedly connected to each of the two insert rods 16. The left surface of the slider 17 is in contact with the connecting frame 15. A spring 18 is slidably sleeved on the outer surface of each of the two insert rods 16. One end of the spring 18 is fixedly connected to the inner side wall of the connecting frame 15, and the end of the spring 18 away from the connecting frame 15 is fixedly connected to the side surface of the slider 17. Two recesses 19 are fixedly connected to the right surface of the connecting plate 10. T-shaped blocks 20 are slidably connected to the inner surface of each of the two recesses 19. Limiting blocks 21 are fixedly connected to the side surfaces of each of the two T-shaped blocks 20. The outer surfaces of the two insert rods 16 are movably connected to the two limiting blocks 21 respectively. A T-shaped groove 23 is opened on the recess 19. The outer surface of the T-shaped block 20 is slidably connected to the T-shaped groove 23. A slot 24 is opened on the limiting block 21. The outer surface of the insert rod 16 is movably connected to the slot 24.

[0030] Working principle: By pulling the slider 17, the moving slider 17 can drive the insertion rod 16 to move. During the movement, the insertion rod 16 gradually pulls the spring 18, causing the spring 18 to gradually be in a stretched state. When the moving insertion rod 16 disengages from the slot 24, the fixing of the limiting block 21, T-block 20, and other structures can be released. Then, moving the limiting block 21 downward will cause the limiting block 21, T-block 20, and slot 24 to move downward, so that the slot 24 no longer corresponds to the insertion rod 16. At this time, releasing the pulled slider 17 will release the spring 18. After the spring rebounds, the spring 18 will cause the insertion rod 16 and the slider 17 to move back to their original positions. Then, repeat the above operation on the other side to release the fixation of the connecting plate 10. At this time, by pulling the handle 22, the connecting plate 10, connecting ring 11, and filter plate 12 can be pulled out from the feeding bin 1. After the filter plate 12 is pulled out from the feeding bin 1, cleaning and maintenance can be carried out on the filter plate 12. After the filter plate 12 is cleaned, the connecting ring 11 is inserted into the positioning groove 25 on the positioning block 9 by using the handle 22. At this time, the connection between the feeding bin 1 and the filter plate 12 is completed. The initial connection is established, and after the connecting ring 11 is fully inserted into the positioning groove 25, the connecting plate 10 and the discharge bin 1 come into contact, as do the first sealing ring 13 and the second sealing ring 14. This contact ensures a proper seal between the connecting plate 10 and the discharge bin 1. Then, the slider 17 is pulled, causing the moving slider 17 to move the insertion rod 16 while simultaneously stretching the spring 18. When the moved insertion rod 16 no longer affects the movement of the T-block 20, the limiting block 21, etc., the limiting block 21 is pushed upwards. When the T-block 20, the limiting block 21, and the slot 24 are moved upward, the T-block 20 moves to the top of the T-slot 23, and the slot 24 and the insertion rod 16 are aligned. Then the sliding block 17 is released, and the spring 18 is no longer restricted and rebounds. The rebounding spring 18 drives the insertion rod 16 and the sliding block 17 to move back to their original positions. When the moving insertion rod 16 is inserted into the slot 24, the above operation is repeated on the other side to fix the connecting plate 10 and the filter plate 12, thus completing the connection and fixation between the feeding bin 1 and the filter plate 12.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A vacuum feeding device for solid powder, comprising: The feeding hopper (1) is characterized in that a feed pipe (2) is fixedly connected to the right surface of the feeding hopper (1), a first flange (3) is fixedly connected to the outer surface of the feed pipe (2), a discharge pipe (4) is fixedly connected to the lower surface of the feeding hopper (1), a second flange (5) is fixedly connected to the outer surface of the discharge pipe (4), a vacuum pump (6) is fixedly connected to the left surface of the feeding hopper (1), a connecting pipe (7) is fixedly connected to the input end of the vacuum pump (6), and an exhaust pipe (8) is fixedly connected to the output end of the vacuum pump (6). The inner surface of the feeding bin (1) is fixedly connected to a positioning block (9), the inner surface of the feeding bin (1) is movably connected to a connecting plate (10), the left surface of the connecting plate (10) is fixedly connected to a connecting ring (11), the outer surface of the connecting ring (11) is movably connected to the positioning block (9), the inner surface of the connecting ring (11) is fixedly connected to a filter plate (12), the inner surface of the feeding bin (1) is fixedly connected to a first sealing ring (13), and the inner surface of the connecting plate (10) is fixedly connected to a second sealing ring (14). A connecting frame (15) is fixedly connected to the right surface of the feeding hopper (1). Two insert rods (16) are slidably connected to the inner surface of the connecting frame (15). A slider (17) is fixedly connected to each of the two insert rods (16). A spring (18) is slidably sleeved on the outer surface of each of the two insert rods (16). Two recessed blocks (19) are fixedly connected to the right surface of the connecting plate (10). A T-shaped block (20) is slidably connected to the inner surface of each of the two recessed blocks (19). A limit block (21) is fixedly connected to the side surface of each of the two T-shaped blocks (20). The outer surfaces of the two insert rods (16) are movably connected to the two limit blocks (21) respectively.

2. The solid powder vacuum feeding device according to claim 1, characterized in that, A handle (22) is fixedly connected to the right surface of the connecting plate (10), and the outer surface of the connecting pipe (7) is fixedly connected to the feeding bin (1).

3. The solid powder vacuum feeding device according to claim 1, characterized in that, The recess (19) is provided with a T-shaped groove (23), and the outer surface of the T-shaped block (20) is slidably connected to the T-shaped groove (23).

4. A vacuum feeding device for solid powder according to claim 1, characterized in that, The limiting block (21) has a slot (24) and the outer surface of the insertion rod (16) is movably connected to the slot (24).

5. A vacuum feeding device for solid powder according to claim 1, characterized in that, One end of the spring (18) is fixedly connected to the inner side wall of the connecting frame (15), and the other end of the spring (18) away from the connecting frame (15) is fixedly connected to the side surface of the slider (17).

6. A vacuum feeding device for solid powder according to claim 1, characterized in that, The positioning block (9) has a positioning groove (25), and the outer surface of the connecting ring (11) is movably connected to the positioning groove (25).

7. A vacuum feeding device for solid powder according to claim 1, characterized in that, The left surface of the connecting plate (10) is in contact with the positioning block (9), and the inner surface of the first sealing ring (13) is in contact with the second sealing ring (14).

8. A vacuum feeding device for solid powder according to claim 1, characterized in that, The left surface of the slider (17) is in contact with the connecting frame (15).

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