Novel pneumatic type vacuum charging machine

Abstract

The utility model provides a novel pneumatic type vacuum charging machine which sequentially comprises a vacuum generating cover group, a filter element and reverse blowing subassembly, a feeding section, a discharging door section and a fixed bottom section from top to bottom, and any two adjacent components are connected through a quick-assembly clamp and a sealing ring; the vacuum generation cover set internally comprises an upper cover and a filter element which are integrally formed, the back-blowing subassembly adopts a mode that a back-blowing air bag is right opposite to the filter element, the feeding section is in a tangential feeding port mode, a respirator is arranged on the discharging door section, and the respirator is connected with the left side of the discharging door section through a respirator seat sleeve. According to the novel pneumatic type vacuum charging machine, the integrally-formed pneumatic type vacuum charging machine upper cover and an integrated filter element back flushing structure are designed, the installation mode of the discharging respirator is optimized, the space occupancy rate of the vacuum charging machine is reduced, the charging stability is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of automatic conveying, in particular to a novel pneumatic vacuum feeder. Background Art

[0002] Pneumatic vacuum feeders utilize compressed air through a vacuum generator to create a high vacuum for material conveying. They do not require a mechanical vacuum pump as a power source, but instead rely on a positive pressure air source. The vacuum suction generated by the vacuum generator is used to convey granular and powdered materials, with the material and air separated by a filter element. The pressure difference between the vacuum and ambient air creates a gas flow within the pipeline, completing the conveying process. Pneumatic vacuum feeders are widely used in the pharmaceutical, food, and fine chemical industries.

[0003] Existing pneumatic vacuum feeders mainly use an external air bag, which is equipped with chamber backflush and multi-row backflush to ensure the long-term use of the filter element. The discharge breathing device of the vacuum feeder generally adopts the method of adding a breather to the receiving equipment or feeder to ensure smooth gas-solid space exchange during discharge. It is mainly installed and fixed in the form of quick opening or hose clamp.

[0004] Currently, the air bag of existing pneumatic vacuum feeders is hung externally, requiring considerable space. Multi-row backflush configurations are often achieved by adding backflush barrel sections. These additional barrel sections require additional connecting clamps, increasing the risk of air leaks and making maintenance more complex. Backflush effectiveness is limited, and compatibility with various respirators is poor. Utility Model Content

[0005] In light of this, the present invention aims to propose a novel pneumatic vacuum feeder to address the problem of the air bag being hung externally, which occupies a certain amount of equipment space. Multi-row backflush structures are often achieved by adding backflush barrel sections. Adding backflush barrel sections requires additional connecting clamps, which increases the risk of air leakage in the feeder, complicates maintenance, results in limited backflush effectiveness, and poor compatibility with various types of respirators.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0007] The utility model provides a new pneumatic vacuum feeder. The new pneumatic vacuum feeder comprises a vacuum generating cover group 1, a filter element and a backflush unit 2, a feeding section 3, a discharging door section 4, and a fixed bottom section 6 from top to bottom. Any two adjacent components are connected by a quick-installing clamp 5 and a sealing ring; the vacuum generating cover group 1 includes an integrally formed upper cover, the filter element and the backflush unit 2 adopt a form in which the backflush air bag faces the filter element, the feeding section 3 is in the form of a tangential feeding port, a breather 17 is arranged on the discharging door section 4, and the breather 17 is connected to the left side of the discharging door section 4 through a breather seat sleeve 18.

[0008] Furthermore, the vacuum generating cover group 1 includes an upper cover, an air pipe through-plate plug 7, a vacuum generator 8, and a quick-opening 9; the air pipe through-plate plug 7 is arranged on the left side of the upper cover, and the vacuum generator 8 is connected to the upper cover through the quick-opening 9.

[0009] Furthermore, the filter element and the backflush unit 2 are arranged inside the new pneumatic vacuum feeder, and it includes a gas supply joint 11, an elastic airtight joint 12, a backflush air bag 13, a filter disc pressing cover 14, a filter disc 15, and a filter element 16; the backflush air bag 13 is in a disc shape, the top of the backflush air bag 13 is connected to the gas supply joint 11 and is connected to the elastic airtight joint 12, the backflush air bag 13 is bolted to the filter disc pressing cover 14, a backflush air outlet 10 is arranged at the lower part of the backflush air bag 13, the backflush air outlet 10 faces the filter element 16, the filter element 16 is inserted into the filter disc 15 through a sealing ring, and the filter disc pressing cover 14 presses on the filter disc 15.

[0010] Furthermore, the discharging door section 4 includes a discharging door section main body, a breather 17, a hopper 19, a rotary cylinder 20, and a door plate 21. The breather 17 is arranged on the left side of the discharging door section main body, and the hopper 19, the rotary cylinder 20, and the door plate 21 are arranged on the right side of the discharging door section main body. The hopper 19 is connected to the door plate 21 through the rotary cylinder 20, and the hopper 19 is in a funnel shape.

[0011] Furthermore, the breather seat sleeve 18 is a nylon sleeve seat, the inner hole of the breather seat sleeve 18 is in a threaded form and is connected to the breather 17, and the breather seat sleeve 18 and the discharging door section main body are sealed through an O-ring 24.

[0012] Furthermore, the breather 17 and the breather seat sleeve 18 are sealed through a sealing member 23.

[0013] Furthermore, the breather 17 and the breather seat sleeve 18 are sealed through a sealing member 23, the breather seat sleeve 18 is a quick-opening joint, and the breather seat sleeve 18 and the discharging door section main body are sealed through an O-ring 24.

[0014] Compared with the prior art, the new pneumatic vacuum feeder described in the utility model has the following advantages:

[0015] (1) For the new pneumatic vacuum feeder of the present utility model, an integrated design concept is adopted. The upper cover of the pneumatic vacuum feeder is integrally formed, an integrated filter element backflush structure is designed, and the installation form of the discharging breather is optimized, reducing the space occupancy rate of the vacuum feeder, improving the feeding stability, and reducing the production cost.

[0016] (2) The structure of the vacuum generating cover group 1 of the present utility model is redesigned. Referring to the head pressure-bearing theory and its shape, the upper cover of the pneumatic vacuum feeder is integrally formed. The upper cover is made by die stretching. The vacuum generator 8 is connected to the upper cover through a quick opening 9. The upper cover of the pneumatic vacuum feeder is integrally formed, and the built-in backflush air bag can be well accommodated in terms of structure.

[0017] (3) When the new pneumatic vacuum feeder of the present utility model is backflushed, the elastic airtight joint 12 automatically closes and generates an upward displacement to open the backflush. The filter element 16 is instantaneously backflushed at the moment of backflush. The structure is compact and the backflush effect is excellent.

[0018] (4) In the present utility model, the breather 17 of the discharging door section 4 is in the form of a breather seat sleeve 18, and

[0019] it is not limited to the threaded connection form. The breather seat sleeve 18 can also be made in a quick-opening form to accommodate more diversified breathers. Quick plug-in replacement, inspection, etc. can be realized, and different breathers are equipped to adapt to a wider range of breathers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model.

[0021] In the drawings:

[0022] Figure 1 is the axonometric schematic diagram of the new pneumatic vacuum feeder described in the embodiment of the present utility model;

[0023] Figure 2 is the front view schematic diagram of the vacuum generating cover group of the new pneumatic vacuum feeder described in the embodiment of the present utility model;

[0024] Figure 3 is the front view schematic diagram of the filter element and backflush subassembly of the new pneumatic vacuum feeder described in the embodiment of the present utility model;

[0025] Figure 4 is the internal backflush air flow schematic diagram of the filter element and backflush subassembly of the new pneumatic vacuum feeder described in the embodiment of the present utility model;

[0026] Figure 5 Schematic diagram of the discharge door section of the novel pneumatic vacuum feeder described in the embodiment of the present utility model;

[0027] Figure 6 Schematic diagram of the structural connection of the breather seat sleeve of the novel pneumatic vacuum feeder described in the embodiment of the present utility model.

[0028] Description of reference numerals:

[0029] 1. Vacuum generating cover group; 2. Filter element and backwashing subassembly; 3. Feeding section; 4. Discharge door section; 5. Quick installation clamp; 6. Fixed bottom section; 7. Air pipe through plate plug; 8. Vacuum generator; 9. Quick opening; 10. Backwashing air outlet; 11. Air supply joint; 12. Elastic airtight joint; 13. Backwashing air bag; 14. Filter disc pressing cover; 15. Filter disc; 16. Filter element; 17. Breather; 18. Breather seat sleeve; 19. Door bucket; 20. Rotary cylinder; 21. Door panel; 23. Sealing member; 24. O-ring. Detailed implementation manners

[0030] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0032] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0033] The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0034] Refer to Figure 1-6 As shown, this embodiment provides a new type of pneumatic vacuum feeder. The new type of pneumatic vacuum feeder includes a vacuum generating cover group 1, a filter element and an anti-blowing assembly 2, a feeding section 3, a discharging door section 4, and a fixed bottom section 6 from top to bottom. Any two adjacent components are connected by a quick-installing clamp 5 and a sealing ring. The vacuum generating cover group 1 includes an integrally formed upper cover. The filter element and the anti-blowing assembly 2 adopt the form of an anti-blowing air bag facing the filter element. The feeding section 3 is in the form of a tangential feeding port. A breather 17 is provided on the discharging door section 4, and the breather 17 is connected to the left side of the discharging door section 4 through a breather seat sleeve 18.

[0035] Specifically, in this embodiment, the vacuum generating cover group 1 includes an upper cover, an air pipe passing plate plug 7, a vacuum generator 8, and a quick-opening 9. The air pipe passing plate plug 7 is arranged on the left side of the upper cover, and the vacuum generator 8 is connected to the upper cover through the quick-opening 9.

[0036] In the embodiment, a new structural design is carried out on the vacuum generating cover group 1. Referring to the head pressure-bearing theory and its shape, an integrally formed pneumatic vacuum feeder upper cover is made. The upper cover is made by means of die stretching. The vacuum generator 8 is connected to the upper cover through the quick-opening 9. The upper cover of the pneumatic vacuum feeder is made by integral forming, and the internal anti-blowing air bag can be well accommodated in terms of structure.

[0037] Specifically, in this embodiment, the filter element and the anti-blowing assembly 2 are arranged inside the new type of pneumatic vacuum feeder, and it includes a gas supply joint 11, an elastic airtight joint 12, an anti-blowing air bag 13, a filter disc pressing cover 14, a filter disc 15, and a filter element 16. The anti-blowing air bag 13 is in a disc shape. The top of the anti-blowing air bag 13 is connected to the gas supply joint 11 and is connected to the elastic airtight joint 12. The anti-blowing air bag 13 is bolted to the filter disc pressing cover 14. An anti-blowing air outlet 10 is arranged at the lower part of the anti-blowing air bag 13, and the anti-blowing air outlet 10 faces the filter element 16. The filter element 16 is inserted into the filter disc 15 through a sealing ring, and the filter disc pressing cover 14 presses on the filter disc 15.

[0038] In the embodiment, a large-diameter filter element is adopted. The air outlet 10 of the anti-blowing air bag 13 faces the filter element 16. The filter element 16 is inserted into the filter disc 15 using a sealing ring, and the filter disc pressing cover 14 presses on the filter disc 15, so that the filter element 16 does not generate displacement during the material suction process.

[0039] The positive pressure air source is supplied to the disc-shaped anti-blowing air bag 13 through the gas supply joint 11. The elastic airtight joint 12 connected to the anti-blowing air bag 13 is pushed open, and positive pressure gas is filled into the anti-blowing air bag 13 until the internal and external pressures are balanced, and the elastic airtight joint 12 returns to its original position. During the anti-blowing process, the flow direction of the anti-blowing air flow is as Figure 4As shown, when the external air supply is stopped, the elastic airtight joint 12 automatically closes and generates an upward displacement, opening the backflush. During the backflush, the filter element 16 is instantaneously backflushed. The structure is compact and the backflush effect is excellent.

[0040] Specifically, in this embodiment, the discharging door section 4 includes a discharging door section main body, a breather 17, a door hopper 19, a rotary cylinder 20, and a door panel 21. The breather 17 is arranged on the left side of the discharging door section main body, and the door hopper 19, the rotary cylinder 20, and the door panel 21 are arranged on the right side of the discharging door section main body. The door hopper 19 is connected to the door panel 21 through the rotary cylinder 20, and the door hopper 19 is in a funnel shape.

[0041] Specifically, in this embodiment, the breather seat sleeve 18 is a nylon sleeve seat. The inner hole of the breather seat sleeve 18 is in a threaded form and is connected to the breather 17. The breather seat sleeve 18 and the discharging door section main body are sealed through an O-ring 24.

[0042] Specifically, in this embodiment, the breather 17 and the breather seat sleeve 18 are sealed through a seal 23.

[0043] Specifically, in this embodiment, the breather 17 and the breather seat sleeve 18 are sealed through a seal 23. The breather seat sleeve 18 is a quick-release joint, and the breather seat sleeve 18 and the discharging door section main body are sealed through an O-ring 24.

[0044] In the embodiment, the feeding section 3 adopts a tangential feeding port form, enabling the material to enter the feeding machine and move downward along the inner wall of the hopper in a swirling motion, reducing the generation of dust in the hopper during the powder suction process and reducing the dust adhesion on the filter element 16. The breather 17 of the discharging door section 4 is equipped with a breather seat sleeve 18 form, and it is not limited to the threaded connection form. The breather seat sleeve 18 can also be made into a quick-release form to meet more diversified breathers. It realizes rapid plugging and unplugging for replacement, inspection, etc., and is equipped with different breathers, adapting to a wider range of breathers.

[0045] The new pneumatic vacuum feeding machine follows an integrated concept, designs an integrally formed upper cover of the pneumatic vacuum feeding machine, an integrated filter element backflush structure, and optimizes the installation form of the discharging breather, reducing the space occupancy rate of the vacuum feeding machine, improving the feeding stability, and reducing the production cost.

[0046] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A new type of pneumatic vacuum feeder, characterized in that, The described new pneumatic vacuum feeder, from top to bottom, successively includes a vacuum generating cover group (1), a filter element and back-blowing subassembly (2), a feeding section (3), a discharging door section (4), and a fixed bottom section (6). Any two adjacent components are connected by a quick-installing clamp (5) with a sealing ring; the vacuum generating cover group (1) includes an integrally formed upper cover, the filter element and back-blowing subassembly (2) adopts the form of a back-blowing air bag facing the filter element, the feeding section (3) is in the form of a tangential feeding port, a breather (17) is provided on the discharging door section (4), and the breather (17) is connected to the left side of the discharging door section (4) through a breather seat sleeve (18).

2. The novel pneumatic vacuum feeder according to claim 1, wherein, The vacuum generating cover group (1) includes an upper cover, an air pipe passing plate plug (7), a vacuum generator (8), and a quick opening (9); the air pipe passing plate plug (7) is arranged on the left side of the upper cover, and the vacuum generator (8) is connected to the upper cover through the quick opening (9).

3. The novel pneumatic vacuum feeder according to claim 2, wherein, The filter element and back-blowing subassembly (2) is arranged inside the new pneumatic vacuum feeder, and it includes a gas supply joint (11), an elastic airtight joint (12), a back-blowing air bag (13), a filter disk pressing cover (14), a filter disk (15), and a filter element (16); the back-blowing air bag (13) is in a dish shape, the top of the back-blowing air bag (13) is connected to the gas supply joint (11) and is connected to the elastic airtight joint (12), the back-blowing air bag (13) is bolted to the filter disk pressing cover (14), a back-blowing air outlet (10) is provided at the lower part of the back-blowing air bag (13), the back-blowing air outlet (10) faces the filter element (16), the filter element (16) is inserted into the filter disk (15) through a sealing ring, and the filter disk pressing cover (14) presses on the filter disk (15).

4. The novel pneumatic vacuum feeder according to claim 3, wherein The discharging door section (4) includes a discharging door section main body, a breather (17), a hopper (19), a rotary cylinder (20), and a door plate (21). The breather (17) is arranged on the left side of the discharging door section main body, and the hopper (19), the rotary cylinder (20), and the door plate (21) are arranged on the right side of the discharging door section main body. The hopper (19) is connected to the door plate (21) through the rotary cylinder (20), and the hopper (19) is in a funnel shape.

5. The novel pneumatic vacuum feeder according to claim 4, characterized in that, The breather seat sleeve (18) is a nylon sleeve seat. The inner hole of the breather seat sleeve (18) is in a threaded form and is connected to the breather (17), and the breather seat sleeve (18) is sealed with the discharging door section main body through an O-ring (24).

6. The novel pneumatic vacuum feeder according to claim 5, characterized in that, The breather (17) is sealed with the breather seat sleeve (18) through a sealing member (23).

7. The novel pneumatic vacuum feeder according to claim 4, wherein, The breather (17) is sealed with the breather seat sleeve (18) through a sealing member (23). The breather seat sleeve (18) is a quick-opening joint, and the breather seat sleeve (18) is sealed with the discharging door section main body through an O-ring (24).

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