An adjustable high-precision filling device
By coordinating the movement of the electric telescopic rod and the sealing block within the metering cylinder, combined with the threaded connection structure, the problem of insufficient quantitative filling accuracy in existing filling machines is solved, achieving precise quantitative filling of liquid materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN JIALIN NEW MATERIAL TECHNOLOGY CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-29
AI Technical Summary
Existing filling machines have poor accuracy in quantitative filling and cannot effectively control the diversion of liquid materials.
It adopts an adjustable high-precision filling device, which uses an electric telescopic rod to drive the connecting slide and sealing block to rise and fall inside the metering cylinder. Combined with a threaded connection structure, it can achieve precise quantitative filling of liquid materials.
It enables precise quantitative filling of liquid materials, avoiding leakage and excessive pressure that could affect accuracy, and facilitates the replacement and adjustment of the metering cylinder.
Smart Images

Figure CN224298887U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid filling technology, and more specifically, to an adjustable high-precision filling device. Background Technology
[0002] A filling machine is a widely used production device for filling liquids. Most existing filling machines place the filling container on a weighing mechanism. When the liquid reaches the required weight, the weighing mechanism sends a feedback signal to stop filling. For example, patent CN111846400B discloses a high-precision filling device. The diaphragm pump draws in material, which enters the filter through the delivery pipe. The filter filters the material, and the filtered fluid flows out of the filter into a three-way pipe. After passing through the three-way pipe, the fluid splits into two directions and flows out through the first and second ball valves and the first and second discharge pipes, respectively, before flowing into the filling pump. Specifically, it enters the valve cylinder through the first and second inlet pipes. At the start of filling, the weight data obtained by the data acquisition unit from the weighing mechanism is less than the preset feeding threshold of the preset unit.
[0003] When the above-mentioned device is in operation, it achieves a filling method of high-speed filling followed by slow filling through three different workstation structures, thereby solving the negative impact of the impact force of high-speed fluid and ensuring accuracy. However, when the cylinder drives the piston to reciprocate, the material inside the discharge pipe will flow out through the inlet pipe, making it impossible to quantify the diverted liquid material. The liquid can only be quantified by a diaphragm pump, which has poor accuracy. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an adjustable high-precision filling device. The technical problem to be solved by the present invention is: how to increase the accuracy of quantitative filling.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable high-precision filling device, including a main material box, a filling bracket on one side end face, an electric telescopic rod at the middle of the upper end of the filling bracket, a material preparation tank at the outer side of the lower end of the filling bracket, a metering cylinder detachably provided at the lower end of the material preparation tank, a sealing sleeve at the middle of the upper end of the material preparation tank, a connecting slide rod penetrating through the inside of the sealing sleeve, and the output shaft of the electric telescopic rod passing through the filling bracket and connected to the upper end of the connecting slide rod;
[0006] The lower end of the connecting slide rod is provided with a first sealing block, the lower end of the first sealing block is provided with a measuring rod and the measuring rod is detachably connected to the connecting slide rod, the lower end of the measuring rod is provided with a second sealing block, both ends of the first sealing block and the second sealing block are provided with limiting pads, the middle part of the upper end of the measuring rod is provided with a threaded mounting block, and the lower end of the connecting slide rod is provided with a threaded mounting groove that mates with the threaded mounting block.
[0007] In a preferred embodiment, the upper end of the main material box is provided with a feed inlet, the middle of the lower end of the main material box is provided with a guide pipe, and the outer side of the lower end of the main material box is provided with a support frame.
[0008] In a preferred embodiment, the feed pipe is equipped with a feed pump, the upper end of the preparation tank is connected to the lower end of the filling bracket through multiple vertical connecting rods, the lower side of the outer end face of the preparation tank is provided with a reinforcing member, and the end of the reinforcing member away from the preparation tank is fixedly connected to the main material box.
[0009] In a preferred embodiment, the lower end of the metering cylinder is provided with a drain chamber, and the lower end of the drain chamber is provided with a filling port.
[0010] In a preferred embodiment, the upper end of the metering cylinder is provided with a threaded groove, the outer side of the lower end of the material preparation tank is provided with a threaded protrusion that mates with the threaded groove, and the inside of the sealing sleeve is provided with an annular sealing gasket.
[0011] In a preferred embodiment, the lower end of the output shaft of the electric telescopic rod and the upper end of the connecting slide rod are both provided with connecting blocks, and the two connecting blocks are connected by connecting bolts; the second sealing block is connected to the lower end of the measuring rod by mounting bolts.
[0012] In a preferred embodiment, the electric telescopic rod is electrically connected to an external control device, and both the first sealing block and the second sealing block are made of rubber.
[0013] In a preferred embodiment, the outer end face diameters of the first and second sealing blocks in the top view direction are the same as the inner end face diameter of the measuring cylinder in the top view direction, and the outer end faces of the measuring rod and the measuring cylinder in the top view direction are both hexagonal.
[0014] In a preferred embodiment, the feed pipe is connected to the lower end of the main material box and the upper end of the preparation tank, and the feed pump is electrically connected to an external control device.
[0015] In a preferred embodiment, the plurality of vertical connecting rods are arranged in a ring array outside the center point of the material preparation tank in the top view direction, the diameter of the inner end face of the drain chamber in the top view direction is larger than the diameter of the inner end face of the metering cylinder in the top view direction, and the outer end face of the connecting slide rod is adapted to the inner end face of the annular sealing gasket.
[0016] The technical effects and advantages of this utility model are as follows:
[0017] In actual use, this utility model, by setting the connecting slide rod, the first sealing block, the second sealing block, the metering rod, and the electric telescopic rod in the corresponding positions, can drive the connecting slide rod, the first sealing block, the metering rod, and the second sealing block to rise and fall inside the metering cylinder via the electric telescopic rod. When rising, the first sealing block will slide out from inside the metering cylinder first, and the liquid material inside the preparation tank will enter the inside of the metering cylinder. When falling, the first sealing block will slide back into the inside of the metering cylinder, and the second sealing block will slide out from the lower end of the metering cylinder, so that the material inside the metering cylinder flows out from inside the drain chamber, thereby accurately quantitatively filling the liquid material.
[0018] Meanwhile, with the corresponding settings of the metering rod, threaded mounting groove, threaded mounting block, metering cylinder, threaded groove, and threaded protrusion, the specifications of the metering cylinder and metering rod for quantitative filling can be easily changed. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0020] Figure 2 This is a schematic diagram of the overall front view cross-sectional structure of this utility model.
[0021] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle.
[0022] Figure 4 This utility model Figure 2 Enlarged structural diagram of section B.
[0023] Figure 5 This is a schematic diagram of the cross-sectional connection structure of the measuring rod of this utility model.
[0024] The attached diagram is labeled as follows: 1 Main material box, 2 Inlet, 3 Support frame, 4 Guide pipe, 5 Guide pump, 6 Filling bracket, 7 Electric telescopic rod, 8 Vertical connecting rod, 9 Material tank, 10 Reinforcing component, 11 Metering cylinder, 12 Drainage chamber, 13 Filling port, 14 Connecting block, 15 Connecting slide rod, 16 Connecting bolt, 17 Sealing sleeve, 18 Annular sealing gasket, 19 Threaded groove, 20 Threaded protrusion, 21 First sealing block, 22 Metering rod, 23 Second sealing block, 24 Limiting pad, 25 Threaded mounting groove, 26 Threaded mounting block, 27 Mounting bolt. Detailed Implementation
[0025] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that the description of this disclosure will be more complete and fully convey the concept of the exemplary embodiments to those skilled in the art. The drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted.
[0026] This utility model provides an adjustable high-precision filling device, such as... Figure 1 and 2 As shown, the device includes a main material box 1, with a filling bracket 6 on one side. An electric telescopic rod 7 is located at the middle of the upper end of the filling bracket 6, and a material preparation tank 9 is located on the outer side of the lower end of the filling bracket 6. A metering cylinder 11 is detachably mounted on the lower end of the material preparation tank 9, and a sealing sleeve 17 is located at the middle of the upper end of the material preparation tank 9. A connecting slide rod 15 passes through the interior of the sealing sleeve 17. The output shaft of the electric telescopic rod 7 passes through the filling bracket 6 and is connected to the upper end of the connecting slide rod 15. A first sealing block 21 is located at the lower end of the connecting slide rod 15, and a metering rod 22 is located at the lower end of the first sealing block 21, which is detachably connected to the connecting slide rod 15. A second sealing block 23 is located at the lower end of the metering rod 22. Limiting pads 24 are located at both ends of the first sealing block 21 and the second sealing block 23. A threaded mounting block 26 is located at the middle of the upper end of the metering rod 22, and a threaded mounting groove 25 that mates with the threaded mounting block 26 is located at the lower end of the connecting slide rod 15.
[0027] The main material box 1 has an inlet 2 at its upper end, which allows for easy addition of the material to be filled into the main material box 1. The main material box 1 has a guide pipe 4 in the middle of its lower end and a support frame 3 on the outer side of its lower end. The guide pipe 4 is equipped with a guide pump 5, which can be driven by an external control device. The material inside the main material box 1 will be input into the preparation tank 9 through the guide pipe 4, thereby avoiding the direct connection of the guide pipe 4 to the metering cylinder 11, which would cause excessive pressure inside the guide pipe 4 and prevent the material inside from flowing too fast, thus affecting the accuracy of the metering.
[0028] The upper end of the preparation tank 9 is connected to the lower end of the filling bracket 6 through multiple vertical connecting rods 8. The lower side of the outer end face of the preparation tank 9 is provided with a reinforcing member 10. The end of the reinforcing member 10 away from the preparation tank 9 is fixedly connected to the main material box 1. The reinforcing member 10 is arranged in a figure-eight shape in the top view, and its two ends are respectively connected to the preparation tank 9 and the main material box 1, thereby increasing the stability of the preparation tank 9. The lower end of the metering cylinder 11 is provided with a drain chamber 12, and the lower end of the drain chamber 12 is provided with a filling port 13.
[0029] The feed pipe 4 is connected to the lower end of the main material box 1 and the upper end of the preparation tank 9. The feed pump 5 is electrically connected to the external control device. The multiple vertical connecting rods 8 are arranged in a ring array outside the center point of the preparation tank 9 in the top view direction. The operator introduces the liquid material to be filled into the main material box 1 through the feed inlet 2. The liquid material will flow into the feed pipe 4. Then, the operator drives the feed pump 5 through the external control device. The feed pump 5 will then transport the material inside the feed pipe 4 to the preparation tank 9. The operator will then drive the electric telescopic rod 7 through the external control device. The electric telescopic rod 7 will drive the connecting slide rod 15 to rise through the output shaft. When the connecting slide rod 15 rises, it will drive the first sealing block 21 and the second sealing block 23 to move inside the metering cylinder 11.
[0030] When the first sealing block 21 slides out from the upper side of the inner end of the metering cylinder 11, the liquid material will flow into the interior of the metering cylinder 11 through the gap between the lower end of the first sealing block 21 and the inner end of the preparation tank 9. Then, the electric telescopic rod 7 will drive the connecting slide rod 15 to descend through the output shaft, so that the first sealing block 21 slides back into the interior of the metering cylinder 11, and the liquid material inside the gap between the outer end face of the connecting slide rod 15 and the metering cylinder 11 is quantitatively filled. When the connecting slide rod 15 continues to descend, the second sealing block 23 will slide out from the interior of the metering cylinder 11, and the liquid material will flow out from between the metering rod 22 and the metering cylinder 11 and flow out from the filling port 13, thereby filling the liquid material. Then, the operator controls the electric telescopic rod 7 to repeat the above work, so that the liquid material can be accurately and continuously filled.
[0031] like Figure 3As shown in Figures 4 and 5, the upper end of the measuring cylinder 11 is provided with a threaded groove 19, and the outer side of the lower end of the material preparation tank 9 is provided with a threaded protrusion 20 that mates with the threaded groove 19. The inner end face of the threaded groove 19 and the outer end face of the threaded protrusion 20 are connected by threads, which allows the threaded groove 19 at the upper end of the measuring cylinder 11 to be easily unscrewed from the outer end face of the threaded protrusion 20, thus facilitating the installation and replacement of the measuring cylinder 11. Furthermore, the material in the material preparation tank 9 can flow into the gap between the measuring rod 22 and the measuring cylinder 11, thereby enabling precise quantitative filling. The upper and lower ends of the measuring rod 22 are respectively provided with a first sealing block 21 and a second sealing block 23, which can make the first sealing block 21 and the second sealing block 23 fit against the inside of the measuring cylinder 11, thereby preventing leakage of liquid material between the measuring rod 22 and the measuring cylinder 11, thus affecting the accuracy of the measurement.
[0032] Both ends of the first sealing block 21 and the second sealing block 23 are provided with limiting pads 24, which can limit the installation position of the first sealing block 21 and the second sealing block 23, thereby increasing the stability of the installation of the first sealing block 21 and the second sealing block 23.
[0033] A sealing sleeve 17 is provided in the middle of the upper end of the material preparation tank 9. A connecting slide rod 15 is provided through the inside of the sealing sleeve 17. An annular sealing gasket 18 is provided inside the sealing sleeve 17. The annular sealing gasket 18 can effectively increase the sealing performance of the connecting slide rod 15 when it slides. A connecting block 14 is provided at the lower end of the output shaft of the electric telescopic rod 7 and the upper end of the connecting slide rod 15. The two connecting blocks 14 are connected by connecting bolts 16. The output shaft of the electric telescopic rod 7 and the connecting slide rod 15 are connected by the connecting blocks 14 and the connecting bolts 16. When working, lubricant needs to be applied to the surface of the output shaft. At the same time, when the output shaft extends and retracts, it will also carry impurities inside the electric telescopic rod 7 to the outside. The connecting block 14 prevents the output shaft from inserting into the preparation tank 9 and contaminating the liquid material being filled. The second sealing block 23 is connected to the lower end of the metering rod 22 by the mounting bolt 27. The first sealing block 21 and the second sealing block 23 are both made of rubber. The outer end face diameter of the first sealing block 21 and the second sealing block 23 in the top view direction is the same as the inner end face diameter of the metering cylinder 11 in the top view direction.
[0034] Both the measuring rod 22 and the measuring cylinder 11 are hexagonal on their outer end faces when viewed from above. The outer end face of the threaded mounting block 26 is connected to the inner end face of the threaded mounting groove 25 by threads, which allows the threaded mounting block 26 at the upper end of the measuring rod 22 to be easily unscrewed from the inside of the threaded mounting groove 25, thus facilitating the replacement of the measuring rod 22 according to the quantitative filling requirements. The outer end face of the connecting slide rod 15 is adapted to the inner end face of the annular sealing gasket 18. According to the filling requirements, the operator rotates the measuring cylinder 11 to unscrew the threaded groove 19 at the upper end of the measuring cylinder 11 from the inside of the threaded protrusion 20, thereby removing the measuring cylinder 11 from the lower end of the material preparation tank 9. Then, the measuring rod 22 is unscrewed from the lower end of the connecting slide rod 15, thus allowing the measuring rod 22 and the measuring cylinder 11 to be replaced according to the quantitative requirements.
[0035] Finally, it should be noted that: the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An adjustable high-precision filling device, characterized in that, include: The main material box (1) has a filling bracket (6) on one side end face. The middle of the upper end of the filling bracket (6) is provided with an electric telescopic rod (7). The lower end of the filling bracket (6) is provided with a material tank (9). The lower end of the material tank (9) is detachably provided with a metering cylinder (11). The middle of the upper end of the material tank (9) is provided with a sealing sleeve (17). The inside of the sealing sleeve (17) is provided with a connecting slide rod (15). The output shaft of the electric telescopic rod (7) passes through the filling bracket (6) and is connected to the upper end of the connecting slide rod (15). The lower end of the connecting slide rod (15) is provided with a first sealing block (21), the lower end of the first sealing block (21) is provided with a measuring rod (22) and the measuring rod (22) is detachably connected to the connecting slide rod (15). The lower end of the measuring rod (22) is provided with a second sealing block (23). Both ends of the first sealing block (21) and the second sealing block (23) are provided with limiting pads (24). The middle part of the upper end of the measuring rod (22) is provided with a threaded mounting block (26). The lower end of the connecting slide rod (15) is provided with a threaded mounting groove (25) that cooperates with the threaded mounting block (26).
2. The adjustable high-precision filling device according to claim 1, characterized in that: The main material box (1) has a feed inlet (2) at the upper end, a guide pipe (4) at the middle of the lower end of the main material box (1), and a support frame (3) at the outer side of the lower end of the main material box (1).
3. The adjustable high-precision filling device according to claim 2, characterized in that: The feed pipe (4) is equipped with a feed pump (5). The upper end of the preparation tank (9) is connected to the lower end of the filling bracket (6) through multiple vertical connecting rods (8). The lower side of the outer end face of the preparation tank (9) is provided with a reinforcing member (10). The end of the reinforcing member (10) away from the preparation tank (9) is fixedly connected to the main material box (1).
4. The adjustable high-precision filling device according to claim 1, characterized in that: The lower end of the metering cylinder (11) is provided with a drain chamber (12), and the lower end of the drain chamber (12) is provided with a filling port (13).
5. The adjustable high-precision filling device according to claim 4, characterized in that: The upper end of the metering cylinder (11) is provided with a threaded groove (19), the lower end of the material preparation tank (9) is provided with a threaded protrusion (20) that cooperates with the threaded groove (19), and the inside of the sealing sleeve (17) is provided with an annular sealing gasket (18).
6. The adjustable high-precision filling device according to claim 1, characterized in that: The lower end of the output shaft of the electric telescopic rod (7) and the upper end of the connecting slide rod (15) are both provided with connecting blocks (14), and the two connecting blocks (14) are connected by connecting bolts (16); the second sealing block (23) is connected to the lower end of the measuring rod (22) by mounting bolts (27).