Full-pneumatic filling machine

Through the combination of a fully pneumatic filling machine and a filter scraper mechanism, the problems of low safety and debris blockage in explosion-proof environments are solved, and high-precision and high-safe filling are achieved, and the filling is reduced. Difficulty in use and manpower cleaning requirements.

CN222361218UActive Publication Date: 2025-01-17深圳市三浦天然化妆品有限公司
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Patent Information

Application Number
CN202323519930.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-22
Publication Date
2025-01-17
Estimated Expiration
2033-12-22

AI Technical Summary

Technical Problem

Traditional filling machines are low in explosion-proof environments, prone to static electricity and numbing, low filling accuracy, and need to be cleaned regularly to avoid blockage of debris, which increases the difficulty of use.

Method used

Using a fully pneumatic filling machine, the filter screen set in the feed hose is coordinated with the scraper mechanism, and the liquid impact scraper is used to achieve continuous cleaning of the filter screen, avoid debris blockage, and pass through a one-way valve And clamps ensure liquid is transported along preset paths, improving filling accuracy and safety.

Benefits of technology

It realizes high-safe filling in explosion-proof environments, avoids static electricity, improves filling accuracy, reduces the difficulty of using the device, reduces the need for manpower to clean the filter, and improves filling efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a full-pneumatic filling machine, and particularly relates to the technical field of filling machines, the full-pneumatic filling machine comprises a feeding and discharging tee joint, the feeding end of the feeding and discharging tee joint is connected with a feeding hose, the discharging end of the feeding and discharging tee joint is connected with a discharging hose, the interior of the feeding hose is connected with a filter screen, and the interior of the discharging hose is rotatably connected with a scraper mechanism; one-way valves are arranged between the feeding and discharging tee joint and the interior of the feeding hose as well as between the feeding and discharging tee joint and the interior of the discharging hose; the pneumatic component comprises a telescopic part and a piston, the piston is arranged in the feeding and discharging tee joint, and the telescopic end of the telescopic part extends into the feeding and discharging tee joint to be connected with the piston, so that the piston reciprocates in the feeding and discharging tee joint to generate negative pressure; according to the utility model, compressed air is adopted for control, so that the pneumatic filling machine is suitable for being used in an environment with an explosion-proof requirement, has high safety, does not generate static electricity and stunning electricity phenomena, and is high in filling precision due to the adoption of pneumatic control and hard positioning.
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Description

Technical Field

[0001] The utility model relates to the technical field of filling machines, in particular to a full-pneumatic filling machine. Background Art

[0002] Filling machines are mainly a small category of packaging machines. From the perspective of material packaging, they can be divided into liquid filling machines, paste filling machines, powder filling machines and granule filling machines; from the degree of production automation, they can be divided into semi-automatic filling machines and fully automatic filling production lines. Among them, liquid filling machines are used relatively frequently and are mainly used to fill liquid materials into containers.

[0003] Traditional filling machines use electric components and mechanical control technology, and fill by driving the filling valve through a motor. This type of filling machine requires regular maintenance and servicing. Although it can achieve automatic filling, there are certain problems. That is, most of them are electrically controlled, which is not suitable for use in environments with explosion-proof requirements. They have low safety, are prone to static electricity and numbness, and have low filling accuracy. In order to prevent the liquid inlet and outlet of the device from being blocked by debris, a filter will be installed on the liquid inlet pipe of the device. Although it can block debris, the debris will accumulate on the liquid inlet side of the filter and gradually block the liquid inlet side of the filter. Therefore, personnel are required to clean it regularly, which increases the difficulty of using the device. Utility Model Content

[0004] The purpose of the utility model is to provide a fully pneumatic filling machine to solve the above-mentioned deficiencies in the technology.

[0005] In order to achieve the above object, the utility model provides a fully pneumatic filling machine, comprising:

[0006] An inlet and outlet tee, wherein the inlet end of the inlet and outlet tee is connected to a feed hose, and the outlet end of the inlet and outlet tee is connected to a discharge hose, a filter is connected inside the feed hose, and a scraper mechanism is rotatably connected inside the discharge hose;

[0007] One-way valves are provided between the inlet and outlet tees and the inside of the feed hose, and between the inlet and outlet tees and the inside of the discharge hose, so that a delivery channel for delivering liquid along a preset path is formed between the feed hose, the inlet and outlet tees and the discharge hose;

[0008] A pneumatic component, comprising a telescopic part and a piston, wherein the piston is arranged inside the inlet and outlet tee, and the telescopic end of the telescopic part extends to the inside of the inlet and outlet tee and is connected to the piston, so that the piston reciprocates inside the inlet and outlet tee to generate negative pressure;

[0009] A filling component is arranged at the discharge end of the discharge hose, and the filling component is used to discharge materials.

[0010] In a possible implementation, the scraper mechanism includes a transmission roller, the transmission roller is rotatably connected to the inner wall of the discharge hose, a plurality of scrapers are arranged around the circumference of the transmission roller, and the scrapers are close to the filter screen.

[0011] In a possible implementation, the filling component includes an anti-drip filling head, a front speed regulating valve is installed on one side of the anti-drip filling head, and the liquid outlet end of the discharge hose is connected to the anti-drip filling head.

[0012] In a possible implementation, it also includes a frame, the top of the frame is vertically fixedly connected to a vertical pole, and the frame is equipped with an anti-slip shoe, the vertical pole is fixedly connected to a movable cross bar, the cross bar is equipped with a filling head clamp that can move along its length direction, and the anti-drip filling head is installed on the filling head clamp.

[0013] In a possible implementation, the pneumatic component also includes an air filter, a material cylinder and an air cylinder. The material cylinder is arranged above the frame, and the air cylinder is on one side of the material cylinder. An air pressure regulating knob is installed on the air filter, and the air inlet and air outlet ends of the air filter are respectively connected to an air source switch and a rear speed regulating valve, the rear speed regulating valve is connected to the air cylinder, and the air inlet end of the air source switch is provided with an air source connector.

[0014] In a possible implementation, an air pipe joint is provided on the front speed regulating valve, and an upper air pipe and a lower air pipe are provided between the cylinder and the air pipe joint to connect the cylinder with the air path of the anti-drip filling head.

[0015] In a possible implementation, it further includes a guide rod, which is arranged above the frame and is connected to a movable metering seat, and one end of the guide rod is connected to a hand wheel.

[0016] In a possible implementation, a metering counter is provided on the guide rod, a process air control is provided on one side of the metering counter, a return air control is provided on one side of the cylinder, and a safety cover for shielding the metering counter is fixedly connected to the frame.

[0017] In a possible implementation, a clamp is provided at the connection between the inlet and outlet tee and the feed hose, and at the connection between the inlet and outlet tee and the discharge hose.

[0018] In a possible implementation, the frame is provided with a pressure gauge for detecting the internal pressure of the inlet and outlet tee and an emergency stop switch.

[0019] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0020] The utility model adopts compressed air as control, is suitable for use in environments with explosion-proof requirements, has high safety, does not generate static electricity, does not require grounding, and adopts pneumatic control and hard positioning, so the filling accuracy is high;

[0021] In addition, by setting a filter in the feed hose, when the device sucks liquid through the feed hose and filters the liquid through the filter, the liquid impacts the scraper, which then causes the drive roller to rotate inside the filter hose, causing the scraper to continuously scrape the filter, thereby achieving continuous cleaning of the filter. This design does not require personnel to regularly clean the filter, which can reduce the difficulty of using the device and improve the filling efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a three-dimensional diagram of the anti-drip filling head of the utility model;

[0025] Figure 3 This is the internal structure diagram of the feed hose of the utility model;

[0026] Figure 4 It is a three-dimensional diagram of the filter screen of the utility model;

[0027] Description of reference numerals:

[0028] 1. Anti-drip filling head; 2. Cross bar; 3. Front speed regulating valve; 4. Air pipe joint; 5. Upper air pipe; 6. Lower air pipe; 7. Vertical pole; 8. Air source switch; 9. Cylinder; 10. Air source joint; 11. Rear speed regulating valve; 12. Cylinder; 13. Filling head clamp; 14. Discharge hose; 15. Hand wheel; 16. Clamp; 17. Inlet and outlet tee; 18. Feed hose; 19. Return air control; 20. Guide rod; 21. Metering movable seat; 22. Safety cover; 23. Metering counter; 24. Air pressure adjustment knob; 25. Air filter; 26. Anti-skid foot shoe; 27. Rack; 28. Emergency stop switch; 29. ​​Process air control; 30. Pressure gauge; 31. Scraper; 32. Drive roller; 33. Filter. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] The technical solution in the embodiment of the present application is to solve the above problems, and the overall idea is as follows:

[0031] Example 1

[0032] like Figure 1-Figure 4 As shown, this embodiment provides a fully pneumatic filling machine, which includes an inlet and outlet tee 17. The feed end of the inlet and outlet tee 17 is fixedly connected to a feed hose 18, and the outlet end of the inlet and outlet tee 17 is fixedly connected to a discharge hose 14, and the inside of the feed hose 18 is fixedly connected to a filter 33.

[0033] like Figure 3 and Figure 4 As shown, the discharge hose 14 is rotatably connected to a scraper mechanism, which includes a drive roller 32 , and a plurality of scrapers 31 are provided on the circumference of the drive roller 32 . The plurality of scrapers 31 are connected to the outer circumferential wall of the drive roller 32 in a ring array.

[0034] One-way valves are provided between the inlet and outlet tee 17 and the inside of the feed hose 18, and between the inlet and outlet tee 17 and the inside of the discharge hose 14, and clamps 16 are provided at the connection between the inlet and outlet tee 17 and the feed hose 18, and at the connection between the inlet and outlet tee 17 and the discharge hose 14, so that a conveying channel for conveying liquid along a preset path is formed between the feed hose 18, the inlet and outlet tee 17 and the discharge hose 14.

[0035] A pneumatic component is installed on the inlet and outlet tee 17, and the pneumatic component includes a telescopic part and a piston. The piston is arranged inside the inlet and outlet tee 17. The telescopic end of the telescopic part extends to the inside of the inlet and outlet tee 17 and is connected to the piston. The telescopic part is extended to make the piston reciprocate inside the inlet and outlet tee 17 to generate suction. A filling component is installed at the outlet end of the outlet hose 14, and the filling component is used to transport materials into the container. An air pipe joint 4 is arranged on the front speed regulating valve 3, and an upper air pipe 5 and a lower air pipe 6 are arranged between the cylinder 12 and the air pipe joint 4.

[0036] The materials in this embodiment include but are not limited to processed products such as liquids.

[0037] Through the above technical solution, when a person needs to fill, the device is moved to the position required by the person. After the position of the device is adjusted, the liquid to be filled is added into the container. After the liquid is added, the feed hose 18 is placed inside the container. After the feed hose 18 is placed, the telescopic part is moved, and then the telescopic part drives the piston to move, so that the piston moves back and forth in the feed and discharge tee 17, so that suction is generated inside the feed and discharge tee 17. Since a one-way valve is provided between the feed and discharge tee 17 and the inside of the feed hose 18 and between the feed and discharge tee 17 and the inside of the discharge hose 14, and a conveying channel for conveying liquid along a preset path is formed between the feed hose 18, the feed and discharge tee 17 and the discharge hose 14, the feed hose 18 will extract the liquid inside the container and allow the liquid to enter the inside of the feed and discharge tee 17. The liquid is conveyed to the discharge hose 14 through the feed and discharge tee 17, and then conveyed to the filling component, and the liquid is conveyed to the inside of the container through the filling component, thereby completing the liquid filling. When the liquid is sucked in through the feed hose 18 , the liquid is filtered through the filter screen 33 inside the feed hose 18 to prevent foreign matter in the liquid from entering the feed hose 18 .

[0038] In this embodiment, a rotatable transmission roller 32 is provided inside the feed hose 18, and a plurality of scrapers 31 are arranged around the outer circumference of the transmission roller 32. When liquid enters the feed hose 18, the liquid impacts the scraper 31, and then the transmission roller 32 rotates inside the feed hose 18, and the scraper 31 scrapes the liquid inlet side of the filter screen 33, thereby continuously cleaning the filter screen 33 to prevent debris from clogging the filter screen 33.

[0039] In some examples, regarding how the filling component works, the filling component includes an anti-drip filling head 1 , a front speed regulating valve 3 is installed on one side of the anti-drip filling head 1 , and the liquid outlet end of the discharge hose 14 is connected to the anti-drip filling head 1 .

[0040] In this embodiment, when liquid needs to be filled, the filling container is placed under the anti-drip filling head 1, and the liquid is transported through the discharge hose 14, so that the liquid is transported to the anti-drip filling head 1, and the liquid is transported to the inside of the filling container through the anti-drip filling head 1, thereby completing the liquid filling.

[0041] In addition, when the personnel need to adjust the speed at which the anti-drip filling head 1 discharges the liquid, the front speed regulating valve 3 is rotated to thereby adjust the speed at which the anti-drip filling head 1 discharges the liquid.

[0042] In some examples, since the heights of the filling containers are different, in order to adjust according to the heights of the filling containers and improve the use range of the device, such as Figure 2As shown, the filling machine also includes a frame 27, a vertical pole 7 is fixedly connected to the top of the frame 27, and a non-slip shoe 26 is installed at the bottom of the frame 27, a movable cross bar 2 is fixedly connected to the vertical pole 7, a filling head clamp 13 that can move along its length direction is installed on the cross bar 2, and the anti-drip filling head 1 is installed on the filling head clamp 13.

[0043] In this embodiment, when a person needs to fill liquid, before placing the filling container, the cross bar 2 is pulled to move the cross bar 2 on the vertical pole 7, thereby adjusting the height of the cross bar 2. After the height of the cross bar 2 is adjusted, the filling head clamp 13 is pulled to move the filling head clamp 13 on the cross bar 2, thereby adjusting the filling head clamp 13 on the cross bar 2, thereby adjusting the position of the filling head clamp 13, and the filling head clamp 13 drives the anti-drip filling head 1 to move, thereby adjusting the height and position of the anti-drip filling head 1.

[0044] The filling container is placed under the anti-drip filling head 1. After the filling container is placed, the liquid is transported through the discharge hose 14, so that the liquid is transported to the anti-drip filling head 1, and the liquid is transported to the inside of the filling container through the anti-drip filling head 1, thereby completing the liquid filling. In addition, when the personnel need to adjust the speed at which the anti-drip filling head 1 discharges the liquid, the front speed regulating valve 3 is turned to adjust the speed at which the anti-drip filling head 1 discharges the liquid.

[0045] Example 2

[0046] The specific structure of this embodiment, how the pneumatic components work, such as Figure 1 As shown, the pneumatic components include an air filter 25, a material cylinder 9 and an air cylinder 12. The material cylinder 9 is arranged above the frame 27, and the air cylinder 12 is located on one side of the material cylinder 9. An air pressure regulating knob 24 is installed on the air filter 25, and the air inlet and air outlet ends of the air filter 25 are respectively connected to the air source switch 8 and the rear speed regulating valve 11. The rear speed regulating valve 11 is connected to the air cylinder 12, and the air inlet end of the air source switch 8 is provided with an air source connector 10.

[0047] An air pipe joint 4 is provided on the front speed regulating valve 3 , and an upper air pipe 5 and a lower air pipe 6 are provided between the air cylinder 12 and the air pipe joint 4 , so that the air path between the air cylinder 12 and the anti-drip filling head 1 is communicated.

[0048] like Figure 1 As shown, an emergency stop switch 28 is provided on the frame 27 to ensure safety during operation.

[0049] In this embodiment, before filling, the personnel move the device to the position required by the personnel, and after the position of the device is adjusted, the liquid to be filled is added into the container. After the liquid is added, the feed hose 18 is placed inside the container. After the feed hose 18 is placed, the emergency stop switch 28 is lowered, the gas source switch 8 is turned on, and the gas is input through the gas source connector 10. The gas is filtered through the air filter 25, and the filtered gas is transported to the cylinder 12.

[0050] During the gas delivery process, the gas flow rate is adjusted by the air pressure regulating knob 24 and the rear speed regulating valve 11. When the gas is delivered to the cylinder 12, the cylinder 12 is operated, thereby driving the piston in the material cylinder 9 to move, and the piston moves back and forth in the inlet and outlet tee 17, so that suction is generated inside the inlet and outlet tee 17. Since a one-way valve is provided between the inlet and outlet tee 17 and the inside of the feed hose 18 and between the inlet and outlet tee 17 and the inside of the outlet hose 14, and a delivery channel for delivering liquid along a preset path is formed between the feed hose 18, the inlet and outlet tee 17 and the outlet hose 14, the feed hose 18 will extract the liquid inside the container, so that the liquid enters the inlet and outlet tee 17, and the liquid is delivered to the outlet hose 14 through the inlet and outlet tee 17, and then delivered to the filling component, and the liquid is delivered to the inside of the container through the filling component, thereby completing the liquid filling.

[0051] In some examples, for manual filling, the fully pneumatic filling machine also includes a guide rod 20, which is arranged above the frame 27, and is connected to a movable metering movable seat 21, one end of the guide rod 20 is connected to a handwheel 15, and a metering counter 23 is arranged on the guide rod 20, a process air control 29 is arranged on one side of the metering counter 23, a return air control 19 is arranged on one side of the cylinder 12, and a safety cover 22 for shielding the metering counter 23 is fixedly connected to the frame 27.

[0052] In this embodiment, before personnel need to carry out filling, the device is moved to the position required by the personnel. After the position of the device is adjusted, the liquid to be filled is added into the container. After the liquid is added, the feed hose 18 is placed inside the container. After the feed hose 18 is placed, the emergency stop switch 28 is lowered, and the hand wheel 15 is turned. The hand wheel 15 drives the guide rod 20 to rotate, and then the metering movable seat 21 moves, and at the same time, it also drives the piston in the material cylinder 9 to move, so that the piston moves back and forth in the inlet and outlet tee 17, thereby generating suction inside the inlet and outlet tee 17.

[0053] Since one-way valves are provided between the inlet and outlet tee 17 and the inside of the feed hose 18 and between the inlet and outlet tee 17 and the inside of the discharge hose 14, and a conveying channel for conveying liquid along a preset path is formed between the feed hose 18, the inlet and outlet tee 17 and the discharge hose 14, the feed hose 18 will extract the liquid inside the container, so that the liquid enters the inlet and outlet tee 17, and conveys the liquid to the discharge hose 14 through the inlet and outlet tee 17, and then conveys it to the filling component, and conveys the liquid to the inside of the container through the filling component, thereby completing the liquid filling. And when the device moves, the filling times are known through the cooperation of the metering counter 23, the process air control 29 and the return air control 19. If an accident occurs during the operation of the device, the emergency stop switch 28 is turned on to make the device stop urgently.

[0054] In some examples, a pressure gauge 30 is disposed on the frame 27 .

[0055] In summary, the piston in the cylinder 9 is driven to reciprocate by the forward and backward movement of the cylinder 12 to achieve material suction and filling. Turn on the air source switch 8, select the manual and automatic selection switch, the piston reciprocates in the automatic gear, and in the manual gear, lightly step on the foot valve to complete a reciprocating filling (the cylinder 12 extends initially). Customers can choose automatic or manual gear according to factors such as production, material conditions, and operator proficiency. After releasing the emergency stop switch 28, the process air control 29 is inductively opened, the main air path enters the rear cavity of the cylinder 12, the cylinder 12 moves forward, pushes the piston head forward, squeezes the material, and the material enters the discharge hose 14 through the one-way valve in the discharge joint, and finally enters the empty bottle to be filled through the anti-drip filling head 1.

[0056] When feeding, the anti-drip filling head 1 is closed, and when discharging, it is opened. When it reaches the return air control 19, the return air control 19 is opened, and the main air path is switched to enter the front chamber of the cylinder 12. The cylinder 12 moves backward, pulling the piston head backward, and the front chamber of the material cylinder 9 generates negative pressure. The feed check valve opens, and the material in the feed barrel is pressed into the feed hose 18 by the atmospheric pressure, and enters the material cylinder 9 through the feed and discharge tee 17, and reaches the process air control 29. When it is manual, one filling is completed. When it is automatic, the air path will be switched again, and the operation will be repeated to achieve automatic.

[0057] The filling machine in the above embodiment describes the canning process of liquid products. Of course, in some other embodiments, the filling machine is not limited to the canning of liquid products, but is also applicable to the canning of powdered or granular products, such as milk powder and other products.

[0058] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fully pneumatic filling machine, characterized in that: include: An inlet and outlet tee (17), wherein the inlet end of the inlet and outlet tee (17) is connected to a inlet hose (18), and the outlet end of the inlet and outlet tee (17) is connected to a outlet hose (14), the interior of the inlet hose (18) is connected to a filter screen (33), and the interior of the outlet hose (14) is rotatably connected to a scraper mechanism; The scraper mechanism comprises a transmission roller (32), the transmission roller (32) being rotatably connected to the inner wall of the discharge hose (14), a plurality of scrapers (31) being arranged around the circumference of the transmission roller (32), the scrapers (31) being close to the filter screen (33); One-way valves are provided between the inlet and outlet tee (17) and the inside of the feed hose (18), and between the inlet and outlet tee (17) and the inside of the discharge hose (14), so that a conveying channel for conveying liquid along a preset path is formed between the feed hose (18), the inlet and outlet tee (17) and the discharge hose (14); A pneumatic component, comprising a telescopic portion and a piston, wherein the piston is arranged inside the inlet and outlet tee (17), and the telescopic end of the telescopic portion extends into the inlet and outlet tee (17) and is connected to the piston, so that the piston reciprocates inside the inlet and outlet tee (17) to generate negative pressure; A filling component is arranged at the discharge end of the discharge hose (14), and is used to discharge materials.

2. A fully pneumatic filling machine according to claim 1, characterized in that: The filling component comprises an anti-drip filling head (1), a front speed regulating valve (3) is installed on one side of the anti-drip filling head (1), and the liquid outlet end of the discharge hose (14) is connected to the anti-drip filling head (1).

3. A fully pneumatic filling machine according to claim 2, characterized in that: It also comprises a frame (27), the top of the frame (27) being vertically fixedly connected to a vertical pole (7), and a non-slip shoe (26) being mounted on the frame (27), a movable cross bar (2) being fixedly connected to the vertical pole (7), a filling head clamp (13) being mounted on the cross bar (2) and movable along its length direction, and the anti-drip filling head (1) being mounted on the filling head clamp (13).

4. A fully pneumatic filling machine according to claim 3, characterized in that: The pneumatic component further comprises an air filter (25), a material cylinder (9) and an air cylinder (12); the material cylinder (9) is arranged above the frame (27); the air cylinder (12) is located at one side of the material cylinder (9); an air pressure regulating knob (24) is installed on the air filter (25); and an air inlet end and an air outlet end of the air filter (25) are respectively connected to an air source switch (8) and a rear speed regulating valve (11); the rear speed regulating valve (11) is connected to the air cylinder (12); and an air source connector (10) is arranged at the air inlet end of the air source switch (8).

5. A fully pneumatic filling machine according to claim 4, characterized in that: The front speed regulating valve (3) is provided with an air pipe joint (4), and an upper air pipe (5) and a lower air pipe (6) are provided between the air cylinder (12) and the air pipe joint (4) so ​​as to connect the air path of the air cylinder (12) with the anti-drip filling head (1).

6. A fully pneumatic filling machine according to claim 5, characterized in that: It also includes a guide rod (20), the guide rod (20) being arranged above the frame (27), the guide rod (20) being connected to a movable metering movable seat (21), and one end of the guide rod (20) being connected to a hand wheel (15).

7. A fully pneumatic filling machine according to claim 6, characterized in that: A metering counter (23) is provided on the guide rod (20), a process air control (29) is provided on one side of the metering counter (23), a return air control (19) is provided on one side of the cylinder (12), and a safety cover (22) for shielding the metering counter (23) is fixedly connected to the frame (27).

8. A fully pneumatic filling machine according to claim 1, characterized in that: A clamp (16) is provided at the connection between the inlet and outlet tee (17) and the feed hose (18), and at the connection between the inlet and outlet tee (17) and the discharge hose (14).

9. A fully pneumatic filling machine according to any one of claims 3 to 7, characterized in that: The frame (27) is provided with a pressure gauge (30) for detecting the internal pressure of the inlet and outlet tee (17) and an emergency stop switch (28).