Pneumatic material suction machine

By incorporating anti-clogging holes and steel ball designs, combined with the sealing effect of piston wear-resistant sleeves and sealing rings, the problems of poor sealing and insufficient limiting in pneumatic feeders are solved, enabling smooth material conveying and stable equipment operation, thereby improving production efficiency and equipment reliability.

CN121609102APending Publication Date: 2026-03-06RONGCHENG XIANGYUAN FOOD MASCH MFG CO LTD
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Patent Information

Application Number
CN202610080044.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-21
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing pneumatic feeders suffer from poor sealing between the piston and the cylinder wall, and piston detachment from the cylinder leading to air pressure leakage and material leakage. Furthermore, they lack effective limiting devices, which affects material conveying efficiency and equipment reliability.

Method used

The design incorporates anti-clogging holes and steel balls. The round bar and steel balls work together to prevent material blockage. The wear-resistant piston sleeve and sealing ring form a good seal. Combined with a material level sensor, intelligent control is achieved to ensure that the material enters the piston cylinder smoothly and maintains negative pressure, reducing gas leakage.

Benefits of technology

It improves material conveying efficiency and equipment reliability, reduces downtime caused by blockages, extends equipment life, and increases production efficiency and automation level.

✦ Generated by Eureka AI based on patent content.

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    Figure CN121609102A_ABST
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Abstract

The invention relates to the technical field of material suction machines, and discloses a pneumatic material suction machine which comprises a frame body, a feeding pipe is fixedly connected to the front end of the frame body, an air cylinder assembly is fixedly connected to the top end of the feeding pipe, a protective shell is fixedly connected to the surface of the air cylinder assembly, the feeding pipe comprises a piston barrel, and a lower feeding opening is formed in the bottom end of the piston barrel. And a plurality of anti-blocking holes are fixedly connected to the surface of the lower feeding hole. When equipment is started, the air cylinder assembly starts to work, the piston moves downwards under the action of the air cylinder, the air pressure in the piston barrel is reduced, and negative pressure is generated. The second steel ball at the lower feeding port is sucked up under the action of negative pressure, the sealing round hole is opened, and the materials enter the piston cylinder through the lower feeding port. When the piston moves upwards, the second steel ball is blocked under the action of the round bar and does not enter the piston cylinder, meanwhile, the first steel ball at the top end of the wear-resistant sleeve of the piston blocks the round feeding port and is matched with the sealing ring to generate negative pressure, and materials continue to be sucked into the piston cylinder.
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Description

Technical Field

[0001] This invention relates to the field of material suction machine technology, and more particularly to a pneumatic material suction machine. Background Technology

[0002] Pneumatic material feeders are widely used in industrial production, primarily for transporting powders, granules, and other materials from one location to another. These devices have important applications in various industries, including chemical, pharmaceutical, food, and plastics. Traditional pneumatic material feeders typically utilize air pressure differences for material transport. A cylinder drives a piston to reciprocate within a piston cylinder, generating negative and positive pressure to achieve material intake and discharge. In industrial production, the efficiency and accuracy of material transport directly impact production efficiency and product quality. Therefore, the design and performance of pneumatic material feeders are crucial for improving production efficiency, reducing production costs, and ensuring product quality. However, existing pneumatic material feeders exhibit some problems and shortcomings in practical use, requiring further improvement and optimization.

[0003] In the cylinder assembly, the poor sealing between the piston and the cylinder wall can easily lead to air pressure leakage. Furthermore, the lack of an effective limiting device during the piston's up-and-down movement can cause the piston to disengage from the cylinder, resulting in material leakage. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a pneumatic suction material machine.

[0005] This invention is achieved using the following technical solution: a pneumatic suction feeder, comprising a frame, a feed pipe fixedly connected to the front end of the frame, a cylinder assembly fixedly connected to the top end of the feed pipe, a protective shell fixedly connected to the surface of the cylinder assembly, the feed pipe including a piston cylinder, a lower feed port installed at the bottom end of the piston cylinder, an anti-clogging hole fixedly connected to the surface of the lower feed port, several anti-clogging holes being provided, a round bar fixedly connected to the inner wall of the lower feed port, a steel ball II being provided inside the lower feed port, and a round bar being provided at the top end of the steel ball II; when the steel ball II rises and is pulled up, the steel ball II will open the sealing round hole under the influence of negative pressure, allowing material to enter the piston cylinder; during the rise, the round bar will block the steel ball II, preventing it from entering the piston cylinder.

[0006] Through the above technical solution, when the piston moves upward, the round bar can block the second steel ball, preventing it from entering the piston cylinder and avoiding blockage or interference with the piston's normal movement. It also guides the material, allowing it to enter the piston cylinder more smoothly and improving material conveying efficiency. Under negative pressure, the second steel ball rises and opens the sealing orifice, allowing material to enter the piston cylinder; when the piston moves upward, it is blocked by the round bar, preventing it from entering the piston cylinder, thus controlling the material feed. When not being sucked up, it seals the lower feed port, preventing gas leakage inside the piston cylinder, ensuring negative pressure formation, and improving suction efficiency.

[0007] As a further improvement to the above solution, the feed pipe also includes a piston wear-resistant sleeve. A sealing ring is fixedly connected to the bottom end of the piston wear-resistant sleeve. The bottom end of the sealing ring is sleeved with the top end of the piston cylinder. A steel ball is provided at the top end of the piston wear-resistant sleeve. When the steel ball rises and is pulled up, it blocks the circular feed port and, together with the sealing ring, generates a negative pressure to allow the material to enter the piston cylinder.

[0008] Through the above technical solution, the piston wear-resistant sleeve provides wear protection for the piston, reducing wear between the piston and piston cylinder and extending the piston's service life. In conjunction with the sealing ring, it forms a good sealing effect, improving the efficiency of negative pressure generation, while also preventing material from entering the gap between the piston and piston cylinder, avoiding wear on the piston. The sealing ring and piston wear-resistant sleeve work together to form a seal, preventing gas leakage inside the piston cylinder, ensuring stable negative pressure formation, and improving material suction. During piston movement, it plays a certain buffering role, reducing the impact between the piston and piston cylinder, and lowering equipment noise and vibration. When the piston moves upward, the steel ball rises and blocks the circular feed inlet, cooperating with the sealing ring to generate negative pressure, allowing material to enter the piston cylinder, thus controlling material feeding. When the piston moves downward, it seals the circular feed inlet, preventing gas leakage inside the piston cylinder, ensuring negative pressure formation, and improving material suction efficiency.

[0009] As a further improvement to the above solution, a switch body is fixedly connected to the rear end of the frame, a touch screen is fixedly connected to the surface of the switch body, and a handrail is fixedly connected to the bottom of the switch body.

[0010] Through the above technical solution, a touch screen is fixedly connected to the surface of the switch body. Operators can intuitively control the operating status of the equipment through the touch screen, such as starting, stopping, and adjusting parameters, making operation more convenient and intuitive, and improving the ease of use of the equipment. The handrail fixedly connected to the bottom of the switch body provides stable support for the operator, making it easier for the operator to maintain their balance during operation. Especially when adjustments or inspections are needed during equipment operation, the handrail provides additional stability and ensures operational safety.

[0011] As a further improvement to the above solution, an electrical box is fixedly connected to the surface of the frame, and a motor is installed inside the electrical box.

[0012] Through the above technical solution, the motor installed inside the electrical box provides power support for the cylinder assembly, ensuring that the cylinder can stably generate gas pressure difference, drive the steel column to move up and down, thereby realizing the continuous conveying of materials, which is the core power source for the normal operation of the equipment.

[0013] As a further improvement to the above solution, a Z-shaped discharge pipe is fixedly connected to the front end of the feed pipe, and a material level sensor is fixedly connected to the top end of the Z-shaped discharge pipe. The material level sensor can control the feeding and stopping of the equipment according to the amount of material.

[0014] Through the above technical solution, the Z-shaped discharge pipe design allows materials to be discharged in a more flexible manner. The discharge direction and position can be adjusted according to actual production needs, improving the applicability and flexibility of the equipment. A level sensor installed at the top of the Z-shaped discharge pipe can monitor the amount of material in real time and automatically control the feeding and stopping of the equipment based on the material level. When the material reaches the set high level, the equipment automatically stops feeding; when the material falls below the set low level, the equipment automatically starts feeding, achieving intelligent material control, reducing manual intervention, and improving production efficiency and automation levels.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention, through the design of the anti-clogging hole and the second steel ball at the lower feed inlet, can effectively prevent material from clogging the feed inlet, ensure the normal operation of the equipment, reduce downtime and maintenance costs caused by clogging, and the cooperation between the piston wear-resistant sleeve and the sealing ring, as well as the setting of the first steel ball, can better generate negative pressure, allowing the material to enter the piston cylinder more smoothly, improving the material suction efficiency, and also extending the service life of the equipment. This invention utilizes a round bar design to effectively prevent steel balls from escaping during vertical movement, ensuring the stability and safety of the material conveying process. The anti-clogging hole design ensures normal feeding even when the feed inlet is blocked, preventing equipment downtime due to blockage and improving equipment reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the right end structure of the present invention; Figure 3 This is a schematic diagram of the bottom structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the feed pipe of the present invention.

[0017] Explanation of key symbols: 1. Frame; 2. Switch body; 3. Touch screen; 4. Handrail; 5. Electrical box; 6. Feed pipe; 601. Piston cylinder; 602. Lower feed port; 603. Anti-clogging hole; 604. Round bar; 605. Steel ball one; 606. Piston wear-resistant sleeve; 607. Sealing ring; 608. Steel ball two; 7. Protective shell; 8. Cylinder assembly; 9. Discharge pipe; 10. Material level sensor. Detailed Implementation

[0018] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0019] Example:

[0020] Please combine Figure 1-4 The pneumatic feeder of this embodiment includes a frame 1. A feed pipe 6 is fixedly connected to the front end of the frame 1. A cylinder assembly 8 is fixedly connected to the top end of the feed pipe 6. A protective shell 7 is fixedly connected to the surface of the cylinder assembly 8. The feed pipe 6 includes a piston cylinder 601. A lower feed port 602 is installed at the bottom end of the piston cylinder 601. An anti-blocking hole 603 is fixedly connected to the surface of the lower feed port 602. Several anti-blocking holes 603 are provided. A round bar 604 is fixedly connected to the inner wall of the lower feed port 602. A steel ball 608 is provided inside the lower feed port 602. A round bar 604 is provided at the top end of the steel ball 608. When the steel ball 608 rises and is lifted, the steel ball 608 will open the sealing round hole due to the negative pressure, allowing the material to enter the piston cylinder. When rising, the round bar 604 will block the steel ball 608 and prevent it from running into the piston cylinder 601.

[0021] The feed pipe 6 also includes a piston wear-resistant sleeve 606. A sealing ring 607 is fixedly connected to the bottom end of the piston wear-resistant sleeve 606. The bottom end of the sealing ring 607 is sleeved with the top end of the piston cylinder 601. A steel ball 605 is provided at the top end of the piston wear-resistant sleeve. When the steel ball 605 rises and is pulled up, the steel ball 608 blocks the circular feed port and, together with the sealing ring 607, generates a negative pressure to allow the material to enter the piston cylinder 601.

[0022] The switch body 2 is fixedly connected to the rear end of the frame 1. The touch screen 3 is fixedly connected to the surface of the switch body 2. The handrail 4 is fixedly connected to the bottom of the switch body 2. The operator can intuitively control the operating status of the equipment through the touch screen 3, such as starting, stopping, and adjusting parameters. The operation is more convenient and intuitive, improving the ease of use of the equipment. The handrail 4 fixedly connected to the bottom of the switch body 2 provides stable support for the operator, making it easier for the operator to maintain body balance during operation.

[0023] An electrical box 5 is fixedly connected to the surface of the frame 1, and a motor is installed inside the electrical box 5.

[0024] The feed pipe 6 is fixedly connected to a Z-shaped discharge pipe 9 at its front end.

[0025] A material level sensor 10 is fixedly connected to the top of the Z-shaped discharge pipe 9. The material level sensor 10 can control the feeding and stopping of the equipment according to the amount of material. When the material reaches the set high material level, the equipment automatically stops feeding; when the material is lower than the set low material level, the equipment automatically starts feeding, realizing intelligent material control, reducing manual intervention, and improving production efficiency and automation level.

[0026] The implementation principle of the pneumatic feeder in this embodiment is as follows: When the equipment is started, the cylinder assembly begins to work. The piston moves downward under the action of the cylinder, reducing the air pressure inside the piston cylinder and generating a negative pressure. Steel ball two at the lower feed inlet is sucked up under the negative pressure, opening the sealing orifice, and the material enters the piston cylinder through the lower feed inlet. When the piston moves upward, steel ball two is blocked by the round bar and will not enter the piston cylinder. Simultaneously, steel ball one at the top of the piston wear-resistant sleeve blocks the circular feed inlet, cooperating with the sealing ring to generate a negative pressure, continuing to draw material into the piston cylinder.

[0027] Multiple anti-clogging holes 603 are fixedly connected to the surface of the lower feed inlet 602, providing multiple feeding channels for the material. When one channel is blocked, the other channels can still operate normally, ensuring that the material can smoothly enter the piston cylinder 601. This multi-channel design is equivalent to a redundancy mechanism; even if some channels are blocked, the equipment can still operate normally, effectively avoiding equipment downtime caused by single-point blockage and improving the reliability and operational stability of the equipment. Material blockage is a common problem that may lead to equipment downtime for cleaning and maintenance. By setting multiple anti-clogging holes 603, even if some channels are blocked, the equipment can continue to work, reducing downtime caused by blockage, lowering production costs, and improving production efficiency.

[0028] The material level sensor 10 is installed at the top of the Z-shaped discharge pipe 9 and can monitor the amount of material in real time. When the material reaches the set high level, the sensor sends a signal and the equipment automatically stops feeding; when the material falls below the set low level, the sensor sends a signal again and the equipment automatically starts feeding, realizing automated material control.

[0029] The anti-clogging hole 603 design of the feed inlet 602 can still ensure that the material can enter the piston cylinder 601 normally when the feed inlet is partially blocked, thus avoiding the equipment from failing to work properly due to blockage and improving the operational stability of the equipment.

[0030] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A pneumatic suction device, characterized in that Including frame body (1), the frame body (1) front end fixedly connected with feed pipe (6), the feed pipe (6) top end fixedly connected with cylinder assembly (8), the cylinder assembly (8) surface fixedly connected with protective shell (7), the feed pipe (6) includes piston cylinder (601), the piston cylinder (601) bottom end is installed with lower feed port (602), the lower feed port (602) surface fixedly connected with anti-blocking hole (603), the anti-blocking hole (603) is provided with several, the lower feed port (602) inner wall fixedly connected with round bar (604), the lower feed port (602) inside is provided with steel ball two (608), the steel ball two (608) top end is provided with round bar (604), when steel ball two (608) is pulled up, steel ball two (608) is opened sealed round hole by negative pressure and makes material enter piston cylinder;When going up, round bar (604) will block steel ball two (608), will not run into piston cylinder (601).

2. A pneumatic suction device according to claim 1, characterised in that: The feed pipe (6) further includes piston wear sleeve (606), the piston wear sleeve (606) bottom end fixedly connected with sealing ring (607), the sealing ring (607) bottom end and piston cylinder (601) top end sleeve, the piston wear sleeve top end is provided with steel ball one (605), when steel ball one (608) is pulled up, steel ball one (608) blocks circular feed port, and sealing ring (607) is cooperated and generates negative pressure and makes material enter piston cylinder (601).

3. The pneumatic suction device according to claim 1, characterized in that: The frame body (1) rear end fixedly connected with switch body (2), the switch body (2) surface fixedly connected touch screen (3).

4. A pneumatic suction device according to claim 3, characterised in that: The switch body (2) bottom end fixedly connected with handrail (4).

5. The pneumatic suction device according to claim 1, characterized in that: The frame body (1) surface fixedly connected with electric box (5), the electric box (5) inside is installed with motor.

6. The pneumatic suction device according to claim 1, characterized in that: The feed pipe (6) front end fixedly connected with Z-shaped discharge pipe (9).

7. A pneumatic suction device according to claim 6, characterised in that: The Z-shaped discharge pipe (9) top end fixedly connected with material level sensor (10), the material level sensor (10) can control the equipment's feeding and stop according to the amount of material.