Lifting type filling device

Abstract

According to the lifting type filling device, the upper end face of a first supporting column is fixedly connected with a second supporting plate, the upper surface of the second supporting plate is fixedly connected with a retainer, the upper surface of the retainer is fixedly connected with a lead screw motor, the output end of the lead screw motor is fixedly connected with a lead screw, and the interior of the retainer is fixedly connected with a linear guide rail; a guide shoe is slidably connected to the outer surface of the linear guide rail, a lead screw nut seat is fixedly connected to the outer surface of the guide shoe, the lead screw is in threaded fit with the lead screw nut seat, and a movable arm is fixedly connected to the outer surface of the guide shoe. In the filling process, the structure of the lead screw and the motor is adopted in the device, the filling needle can stably and slowly move up and down in the container, and therefore the device has the effects that the filling needle ascends while filling is conducted, bubbles are avoided, and the filling precision is guaranteed. The liquid injection needle in the device is clamped by the indexing pin with the spring, so that the device has the advantage of quick disassembly and assembly. Meanwhile, the liquid receiving groove is used for receiving liquid when the interior of the liquid injection needle is emptied before filling and receiving dropping liquid after filling.

Description

Technical Field

[0001] The present invention relates to the technical field of filling, in particular to a lifting filling device. Background Art

[0002] In the field of filling technology, traditional filling devices often have some obvious shortcomings when performing filling operations. On the one hand, the filling needle can usually only maintain a fixed position during the filling process and cannot move up and down smoothly and slowly inside the container. This causes bubbles to easily form in the liquid during filling, which in turn affects the accuracy and quality of the filling. On the other hand, the disassembly and assembly of the injection needle in the traditional device is not convenient enough, and it takes a lot of time to replace the injection needle. When the injection needle needs to be replaced frequently to adapt to different filling needs, it will seriously affect production efficiency and increase the time cost of changeover. In addition, when the injection needle of the traditional filling device is emptied before filling, and after filling, the reagent remaining on the injection needle is easy to drip, which will not only cause waste of reagents, but may also pollute the working environment and even affect subsequent filling operations.

[0003] With the continuous development of industrial production and the increasing demand for product quality, the existing filling device has gradually shown its limitations when facing the requirements of high precision, high efficiency and clean production. Therefore, in response to the above shortcomings, this solution proposes a lifting filling device to meet the needs of modern industrial production. Summary of the Invention

[0004] The object of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a lifting filling device. During filling, the device adopts a screw plus motor structure, and the filling needle can move up and down smoothly and slowly inside the container. Therefore, it has the effect of rising while filling, avoiding the generation of bubbles and ensuring the filling accuracy.

[0005] The injection needle in this device is secured with a spring-loaded indexing pin, allowing for quick assembly and disassembly, enabling quick needle replacement and saving time during changeovers. A liquid collection trough is used to collect liquid before the needle is emptied and to collect dripping liquid after filling, effectively preventing residual reagent from dripping from the needle.

[0006] The present invention also provides the above-mentioned lifting filling device, including a lifting mechanism, the lifting mechanism including: a pillar one, a retaining frame, the upper end face of the pillar one is fixedly connected to a second support plate, the upper surface of the second support plate is fixedly connected to the retaining frame, the upper surface of the retaining frame is fixedly connected to a screw motor, the output end of the screw motor is fixedly connected to a screw, the interior of the retaining frame is fixedly connected to a linear guide rail, the outer surface of the linear guide rail is slidably connected to a guide shoe, the outer surface of the guide shoe is fixedly connected to a screw nut seat, the screw is threadedly matched with the screw nut seat, the outer surface of the guide shoe is fixedly connected to a movable arm, the other end of the movable arm is fixedly connected to an indexing pin, the outer surface of the movable arm is detachably connected to an injection needle, and the indexing pin abuts against the injection needle.

[0007] Pillar two, the upper end surface of the pillar two is fixedly connected to the first support plate, the upper surface of the first support plate is fixedly connected to the liquid receiving cylinder, the output end of the liquid receiving cylinder is fixedly connected to the fixing frame, the outer surface of the fixing frame is fixedly connected to the liquid receiving trough, and the liquid receiving trough is movably connected to the injection needle.

[0008] According to the present invention, a lifting filling device comprises a protective cover fixedly connected to the outer surface of the retaining frame, and a guide groove formed on the outer surface of the retaining frame, through which the movable arm passes to connect with the guide shoe. This isolates the device from external dust, impurities, and accidental collisions, protects internal precision components such as the lead screw motor and linear guide rails, and extends the service life of the device. The guide groove provides a guide track for the upward and downward movement of the movable arm, limiting its swing range and ensuring that the movable arm slides smoothly along the linear guide rail with the guide shoe, avoiding positioning deviation of the injection needle due to offset.

[0009] According to the present invention, a lifting filling device comprises a screw support base fixedly connected to the upper surface of the second support plate, with the other end of the screw being rotatably connected to the screw support base. The screw support base and the second support plate form a two-end support structure, reducing axial wobble during screw rotation and improving transmission accuracy. The torque applied to the screw is also dispersed, preventing deformation caused by single-point support, and ensuring the stability and reliability of the movable arm's lifting motion.

[0010] According to the present invention, a lifting filling device is provided with a cylinder cover on the upper surface of the liquid receiving cylinder, which is fixedly connected to the first support plate. The cylinder cover protects the liquid receiving cylinder from external liquid and dust, maintains the internal air pressure of the cylinder, and ensures the responsiveness of the liquid receiving tank's lifting and lowering movements. The fixed connection with the first support plate enhances the structural rigidity of the liquid receiving mechanism, prevents vibration during cylinder operation, and ensures accurate alignment between the liquid receiving tank and the injection needle.

[0011] According to the present invention, a lifting filling device comprises multiple sets of lead screw motors and movable arms. The output transmission components of each set of lead screw motors correspond to the up and down movement of a corresponding set of movable arms. This device supports simultaneous filling at multiple stations, independently controlling the speed and stroke of each lead screw motor set to meet the differentiated filling requirements of different containers. The modular design facilitates maintenance and expansion, ensuring that failure of one set of components does not affect the operation of other stations, thereby improving the equipment's production efficiency and reliability.

[0012] According to the present invention, a lifting filling device comprises multiple receiving troughs, each of which is aligned with a corresponding injection needle mounted on the movable arm. This achieves precise, one-to-one liquid collection, preventing contamination from residual liquids from different injection needles. This is particularly suitable for filling multiple reagents. The receiving troughs rise and fall synchronously with the liquid receiving cylinder, ensuring that each injection needle has an independent liquid receiving channel during emptying and dripping, enhancing the cleanliness and safety of the device.

[0013] According to the present invention, a lifting filling device is provided, wherein the bottom of the liquid receiving trough is provided with a drainage hole, and the injection needle is movably connected to the filling container. The drainage hole promptly drains residual liquid from the liquid receiving trough, preventing liquid overflow and contamination of the working environment. In conjunction with an external pipeline, it can realize centralized recovery and treatment of waste liquid. The injection needle can be flexibly inserted into filling containers of different specifications and is suitable for a variety of bottle types, improving the versatility of the device and its adaptability to various application scenarios. Beneficial effects

[0014] Compared with the prior art, the lifting filling device of the present invention adopts a screw plus motor structure during filling, and the filling needle can move up and down smoothly and slowly inside the container, so it has the effect of rising while filling, avoiding the generation of bubbles and ensuring the filling accuracy.

[0015] Compared to existing technologies, the present invention's lifting filling device utilizes a spring-loaded indexing pin to secure the injection needle, offering the advantage of quick assembly and disassembly, enabling rapid needle replacement and saving time. Furthermore, a liquid collection trough is used to receive liquid from the injection needle before filling and to collect dripping liquid after filling, effectively preventing residual reagent from dripping from the injection needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is an overall structural diagram of a lifting filling device of the present invention; Figure 2 This is a side view of a lifting filling device of the present invention; Figure 3 A top view of a lifting filling device of the present invention; Figure 4 This is a bottom view of a lifting filling device of the present invention; Figure 5 This is a schematic diagram of the internal structure of a lifting mechanism of a lifting filling device of the present invention; Figure 6 This is a schematic structural diagram of a liquid receiving cylinder of a lifting filling device of the present invention.

[0017] Legend: 1. Pillar 1; 2. Protective cover; 3. Cage; 4. Guide groove; 5. Screw motor; 6. Movable arm; 7. Indexing pin; 8. Injection needle; 9. Pillar 2; 10. First support plate; 11. Cylinder cover; 12. Guide shoe; 13. Liquid receiving tank; 14. Second support plate; 15. Screw nut seat; 16. Screw; 17. Liquid receiving cylinder; 18. Fixed bracket; 19. Linear guide rail. DETAILED DESCRIPTION

[0018] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be understood as a limitation on the scope of protection of the present invention.

[0019] Reference Figure 1-6 , an embodiment of the present invention provides a lifting filling device, which includes a lifting mechanism, the lifting mechanism including: a pillar 1, a retaining frame 3, the upper end surface of the pillar 1 is fixedly connected to a second supporting plate 14, the upper surface of the second supporting plate 14 is fixedly connected to the retaining frame 3, the upper surface of the retaining frame 3 is fixedly connected to a screw motor 5, the output end of the screw motor 5 is fixedly connected to a screw 16, the interior of the retaining frame 3 is fixedly connected to a linear guide 19, the outer surface of the linear guide 19 is slidably connected to a guide shoe 12, the outer surface of the guide shoe 12 is fixedly connected to a screw nut seat 15, the screw 16 is threadedly engaged with the screw nut seat 15, the outer surface of the guide shoe 12 is fixedly connected to a movable arm 6, the other end of the movable arm 6 is fixedly connected to an indexing pin 7, the outer surface of the movable arm 6 is detachably connected to an injection needle 8, and the indexing pin 7 abuts against the injection needle 8; Support 2 9, the upper end surface of which is fixedly connected to the first support plate 10, to which the liquid receiving cylinder 17 is fixedly connected on its upper surface, the output end of which is fixedly connected to the fixing frame 18, the outer surface of which is fixedly connected to the liquid receiving tank 13, which is movably connected to the injection needle 8. The outer surface of the retaining frame 3 is fixedly connected to the protective cover 2, and the outer surface of the retaining frame 3 is provided with a guide groove 4, through which the movable arm 6 is connected to the guide shoe 12. The upper surface of the second support plate 14 is fixedly connected to the screw support seat, and the other end of the screw 16 is rotatably connected to the screw support seat.

[0020] The upper surface of the liquid receiving cylinder 17 is provided with a cylinder cover 11, which is fixedly connected to the first support plate 10. Multiple sets of screw motors 5 and movable arms 6 are provided. The output transmission components of each set of screw motors 5 correspond to a set of movable arms 6, which move up and down. Multiple liquid receiving troughs 13 are provided, each of which is aligned with a liquid injection needle 8 mounted on a corresponding movable arm 6. The bottom of the liquid receiving trough 13 is provided with a drainage hole, and the liquid injection needle 8 is movably connected to the filling container.

[0021] Working principle: first install the injection needle 8 inside the slot designed on the movable arm 6, use the indexing pin 7 to abut against the injection needle 8, and clamp the injection needle 8 through the spring-loaded indexing pin 7 to achieve rapid installation of the injection needle 8.

[0022] At this time, the liquid receiving cylinder 17 is in the initial state. Before filling, the inside of the liquid injection needle 8 needs to be emptied. At this time, the liquid receiving cylinder 17 is actuated, driving the liquid receiving tank 13 to move to the bottom of the liquid injection needle 8, ready to receive the liquid when the inside of the liquid injection needle 8 is emptied before filling. After the emptying is completed, the liquid receiving cylinder 17 is actuated again, driving the liquid receiving tank 13 to move back to the initial position.

[0023] During the filling process, the lead screw motor 5 is activated and drives the lead screw 16 to rotate. Because the lead screw 16 is threadedly engaged with the lead screw nut holder 15, the lead screw nut holder 15 moves along the lead screw 16 as it rotates. Simultaneously, the lead screw nut holder 15 is fixed to the guide shoe 12, which slides on the outer surface of the linear guide 19, thereby driving the movable arm 6, indexing pin 7, and injection needle 8 to descend smoothly.

[0024] The injection needle 8 descends into the filling container, and filling begins. During the filling process, the screw motor 5 continues to operate, controlling the screw 16 to slowly rotate, causing the injection needle 8 to rise smoothly and slowly within the filling container. This design prevents bubbles from forming in the liquid during the filling process, ensuring filling accuracy.

[0025] After the filling is completed, the injection needle 8 rises and leaves the filling container, the liquid receiving cylinder 17 is activated again, and the liquid receiving tank 13 moves to the bottom of the injection needle 8 to receive the residual reagent remaining on the injection needle 8.

[0026] Since there are multiple groups of screw motors 5 and movable arms 6, the output end transmission components of each group of screw motors 5 correspond to a group of movable arms 6 that move up and down, and there are multiple liquid receiving grooves 13, each liquid receiving groove 13 is respectively coordinated with the injection needle 8 installed on the corresponding movable arm 6, so the device can perform filling operations on multiple filling containers at the same time, thereby improving the filling efficiency.

[0027] A protective cover 2 is fixedly attached to the outer surface of the retaining frame 3, protecting the internal components such as the lead screw motor 5 and linear guide 19, preventing dust and impurities from entering and affecting the normal operation of the device. Support 1 and support 2 provide stable support for the lifting mechanism and the fluid receiving mechanism, respectively. The second support plate 14 and the first support plate 10 further enhance the structural stability of the device.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the scope of the present invention.

Claims

1. A lifting filling device, comprising a lifting mechanism, characterized in that: The lifting mechanism comprises: a pillar (1) and a holder (3); the upper end surface of the pillar (1) is fixedly connected to a second support plate (14); the upper surface of the second support plate (14) is fixedly connected to the holder (3); the upper surface of the holder (3) is fixedly connected to a screw motor (5); the output end of the screw motor (5) is fixedly connected to a screw (16); the interior of the holder (3) is fixedly connected to a linear guide rail (19); the outer surface of the linear guide rail (19) is slidably connected to a guide shoe (12); the outer surface of the guide shoe (12) is fixedly connected to a screw nut seat (15); the screw (16) and the screw nut seat (15) are threadedly matched; the outer surface of the guide shoe (12) is fixedly connected to a movable arm (6); the other end of the movable arm (6) is fixedly connected to a dividing pin (7); the outer surface of the movable arm (6) is detachably connected to an injection needle (8); the dividing pin (7) abuts against the injection needle (8); Pillar 2 (9), the upper end surface of the pillar 2 (9) is fixedly connected to the first support plate (10), the upper surface of the first support plate (10) is fixedly connected to the liquid receiving cylinder (17), the output end of the liquid receiving cylinder (17) is fixedly connected to the fixing frame (18), the outer surface of the fixing frame (18) is fixedly connected to the liquid receiving trough (13), and the liquid receiving trough (13) is movably connected to the injection needle (8).

2. A lifting filling device according to claim 1, characterized in that: The outer surface of the retaining frame (3) is fixedly connected to a protective cover (2), and the outer surface of the retaining frame (3) is provided with a guide groove (4), and the movable arm (6) passes through the guide groove (4) and is connected to the guide shoe (12).

3. The lifting filling device according to claim 1, characterized in that: The upper surface of the second support plate (14) is fixedly connected to a screw support seat, and the other end of the screw (16) is rotatably connected to the screw support seat.

4. The lifting filling device according to claim 1, characterized in that: A cylinder cover (11) is provided on the upper surface of the liquid-connecting cylinder (17), and the cylinder cover (11) is fixedly connected to the first supporting plate (10).

5. The lifting filling device according to claim 1, characterized in that: The screw motor (5) and the movable arm (6) are provided in multiple groups, and the output end transmission components of each group of the screw motor (5) respectively correspond to a group of the movable arm (6) to move up and down.

6. The lifting filling device according to claim 5, characterized in that: There are a plurality of liquid receiving grooves (13), and each of the liquid receiving grooves (13) is respectively coordinated with the liquid injection needle (8) mounted on the corresponding movable arm (6).

7. The lifting filling device according to claim 1, characterized in that: A drainage hole is provided at the bottom of the liquid receiving trough (13), and the liquid injection needle (8) is movably connected to the filling container.

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