Drip-proof filling head

Abstract

The utility model discloses a kind of drip-proof filling heads, including conveying pipe, the outside of conveying pipe is provided with drip-proof subassembly and auxiliary assembly, the drip-proof subassembly includes filling head, the filling head sliding sleeve is connected in the bottom of conveying pipe, the output end of first electric push rod is fixedly installed with moving plate, the moving plate is fixedly installed in filling head outside, the first cross plate is located above moving plate, the utility model relates to filling technical field;The drip-proof filling head, after filling is completed, controller controls solenoid valve to close first, cut off the delivery of liquid, if there is residual liquid outside filling head outlet, control first electric push rod to further lengthen again, drive filling head to move downwards, at this time, the space inside filling head increases, forms negative pressure, under the action of negative pressure, residual liquid outside filling head is inhaled inside, avoid the problem that residual liquid is extruded diffusion when directly plugging, greatly enhance the drip-proof effect.

Description

Technical Field

[0001] This utility model relates to the field of filling technology, specifically an anti-drip filling head. Background Technology

[0002] Filling is a common and crucial process in packaging, typically involving the pouring of materials such as liquids and powders into packaging containers such as plastic bottles, glass bottles, and aluminum cans. In most factories, for example, when filling liquid products such as antifreeze, existing filling machines and other equipment are usually used to fill the liquids into filling barrels or bottles.

[0003] Patent publication number "CN221418808U" discloses "An anti-drip filling head, comprising a filling head body, a conical filling nozzle corresponding to the bottom of the filling head body, a feed inlet corresponding to one side of the filling head body, and a movable and retractable sealing rod corresponding to the inside of the filling head body; a support rod corresponding to the top of the filling head body, a through hole corresponding to the inside of the support rod, and a cylinder corresponding to the top of the support rod, the telescopic rod end of the cylinder passing through the through hole in the support rod and connecting to the top of the sealing rod, the cylinder controls the extension and retraction of the sealing rod to seal or open the conical filling nozzle; a rotatable bearing plate corresponding to the bottom of the conical filling nozzle is also provided, and a groove corresponding to the top of the bearing plate.

[0004] The aforementioned patent uses a support plate below to block the filling nozzle to prevent dripping. However, after filling, some of the liquid remains below the nozzle outlet due to liquid tension. This device is not convenient for handling this liquid. If the nozzle is directly blocked, this liquid will be squeezed and diffuse outward, thus affecting the drip-proof effect.

[0005] Therefore, this utility model provides an anti-drip filling head to solve the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides an anti-drip filling head, which solves the aforementioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a drip-proof filling head, comprising a delivery pipe, an drip-proof component and an auxiliary component disposed on the outer side of the delivery pipe, the drip-proof component comprising a filling head, the filling head being slidably sleeved on the bottom of the delivery pipe, the bottom of the delivery pipe being in communication with the interior of the filling head, a first horizontal plate being fixedly installed on the outer side of the delivery pipe, a first electric push rod being fixedly installed on the bottom of the first horizontal plate, a movable plate being fixedly installed on the output end of the first electric push rod, the movable plate being fixedly installed on the outer side of the filling head, and the first horizontal plate being located above the movable plate.

[0008] Preferably, a sealing gasket is embedded in the outer wall of the delivery pipe. The sealing gasket is located inside the joint between the filling head and the delivery pipe. The sealing gasket can enhance the sealing between the filling head and the delivery pipe and prevent liquid from leaking from the joint.

[0009] Preferably, a solenoid valve is fixedly installed on the inner side of the delivery pipe. The solenoid valve is located above the filling head. The solenoid valve and the first electric push rod are electrically connected to the controller of the drip irrigation equipment. The controller can conveniently control the opening and closing of the solenoid valve and the extension and retraction of the first electric push rod.

[0010] Preferably, the auxiliary component includes a second horizontal plate, which is fixedly installed on the outside of the delivery pipe. A second electric push rod is fixedly installed at the bottom of the second horizontal plate, and an adjusting plate is fixedly installed at the output end of the second electric push rod. A sealing plate is fixedly installed at the top of the adjusting plate. The sealing plate can block the outlet of the filling head to further enhance the anti-drip effect.

[0011] Preferably, a self-locking reducer is fixedly installed on the top of the second horizontal plate, and a servo motor is fixedly installed on the top of the self-locking reducer. The output end of the servo motor is fixedly connected to the input end of the self-locking reducer. The output end of the self-locking reducer movably passes through the interior of the second horizontal plate and is fixedly connected to the second electric push rod. The servo motor can drive the second electric push rod to rotate, thereby adjusting the position of the sealing plate. The self-locking reducer can keep the position of the second electric push rod unchanged when the servo motor stops working.

[0012] Preferably, the second electric actuator and the servo motor are both electrically connected to the controller of the drip irrigation equipment. The controller can uniformly control the extension and retraction of the second electric actuator and the start, stop and rotation direction of the servo motor.

[0013] Beneficial effects

[0014] This invention provides a drip-proof filling head. Compared with the prior art, it has the following advantages:

[0015] 1. This anti-drip filling head, after filling is completed, the controller first controls the solenoid valve to close, cutting off the liquid delivery. If there is residual liquid outside the filling head outlet, the first electric push rod is further extended, driving the filling head downward. At this time, the internal space of the filling head increases, forming a negative pressure. Under the action of negative pressure, the residual liquid outside the filling head is sucked into the interior, avoiding the problem of residual liquid being squeezed and diffused when directly sealing, greatly enhancing the anti-drip effect.

[0016] 2. The anti-drip filling head features a sealing gasket that enhances the seal between the filling head and the delivery pipe, preventing liquid leakage. The solenoid valve can quickly cut off the liquid delivery. Together with the anti-drip components and auxiliary components, it further improves the filling accuracy and anti-drip performance. The combination of the servo motor and self-locking reducer makes the position adjustment of the sealing plate more flexible and precise, adapting to different filling needs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the external structure of this utility model;

[0019] Figure 2 This is a three-dimensional view of the bottom structure of this utility model;

[0020] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0021] Figure 4 This is the utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0022] In the diagram: 1. Delivery pipe; 2. Anti-drip assembly; 21. Filling head; 22. First horizontal plate; 23. Moving plate; 24. First electric actuator; 25. Solenoid valve; 26. Sealing gasket; 3. Auxiliary assembly; 31. Second horizontal plate; 32. Second electric actuator; 33. Adjusting plate; 34. Sealing plate; 35. Self-locking reducer; 36. Servo motor. Detailed Implementation

[0023] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0024] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] Reference Figures 1 to 4 This application provides an anti-drip filling head, including a delivery pipe 1, with an anti-drip component 2 and an auxiliary component 3 disposed on the outer side of the delivery pipe 1.

[0026] The anti-drip assembly 2 includes a filling head 21, which is slidably fitted onto the bottom of the delivery pipe 1. The bottom of the delivery pipe 1 communicates with the interior of the filling head 21, allowing liquid to flow from the delivery pipe 1 into the filling head 21 and then be filled into a container. A first horizontal plate 22 is fixedly installed on the outside of the delivery pipe 1, and a first electric actuator 24 is fixedly installed at the bottom of the first horizontal plate 22. A movable plate 23 is fixedly installed at the output end of the first electric actuator 24, and the movable plate 23 is fixedly installed on the outside of the filling head 21, with the first horizontal plate 22 located above the movable plate 23. When the first electric actuator 24 extends or retracts, it causes the movable plate 23 to move up and down, thereby causing the filling head 21 to slide on the delivery pipe 1.

[0027] A sealing gasket 26 is embedded in the outer wall of the delivery pipe 1. The sealing gasket 26 is located inside the joint between the filling head 21 and the delivery pipe 1. The sealing gasket 26 is made of oil-resistant and corrosion-resistant rubber material, which can effectively enhance the sealing performance between the filling head 21 and the delivery pipe 1 and prevent liquid leakage at the joint.

[0028] A solenoid valve 25 is fixedly installed on the inner side of the delivery pipe 1. The solenoid valve 25 is located above the filling head 21. The solenoid valve 25 and the first electric actuator 24 are both electrically connected to the controller of the drip irrigation equipment. The controller can control the opening and closing of the solenoid valve 25, thereby controlling the flow and cut-off of liquid in the delivery pipe 1; at the same time, the controller can also control the extension and retraction of the first electric actuator 24 to realize the up and down movement of the filling head 21.

[0029] The auxiliary component 3 includes a second horizontal plate 31, which is fixedly installed on the outside of the conveying pipe 1. A second electric push rod 32 is fixedly installed at the bottom of the second horizontal plate 31, and an adjusting plate 33 is fixedly installed at the output end of the second electric push rod 32. A sealing plate 34 is fixedly installed at the top of the adjusting plate 33. The sealing plate 34 is made of food-grade silicone material, which has good elasticity and sealing performance. When the second electric push rod 32 extends or retracts, it will drive the adjusting plate 33 and the sealing plate 34 to move up and down. The sealing plate 34 can fit against the outlet of the filling head 21 to achieve sealing.

[0030] A self-locking reducer 35 is fixedly installed on the top of the second horizontal plate 31, and a servo motor 36 is fixedly installed on the top of the self-locking reducer 35. The output end of the servo motor 36 is fixedly connected to the input end of the self-locking reducer 35. The output end of the self-locking reducer 35 extends through the interior of the second horizontal plate 31 and is fixedly connected to the second electric push rod 32. The servo motor 36 can drive the input end of the self-locking reducer 35 to rotate. After being reduced in speed by the self-locking reducer 35, its output end drives the second electric push rod 32 to rotate, thereby adjusting the horizontal position of the sealing plate 34 so that it can be accurately aligned with the outlet of the filling head 21. The self-locking reducer 35 has a self-locking function, which can prevent the second electric push rod 32 from rotating on its own when the servo motor 36 stops working, ensuring the stability of the position of the sealing plate 34.

[0031] The second electric actuator 32 and the servo motor 36 are both electrically connected to the controller of the drip irrigation equipment. The controller can control the extension and retraction of the second electric actuator 32 and the start, stop, and rotation direction of the servo motor 36, realizing automated control of the auxiliary component 3. A Siemens S7-1200 series PLC is selected as the controller, which can accurately coordinate the work of each electric actuator, servo motor 36, and solenoid valve 25 to meet the overall operation requirements of the filling equipment and ensure efficient linkage between the filling and anti-drip processes.

[0032] Working principle: During the filling operation, the solenoid valve 25 is first opened by the controller, and the liquid flows from the delivery pipe 1 into the filling head 21, and then is filled into the container below through the filling head 21. At the same time, the controller controls the first electric push rod 24 to be in the extended state, so that the filling head 21 is in a lower position, which facilitates liquid filling.

[0033] After filling is completed, the controller first controls the solenoid valve 25 to close, cutting off the liquid delivery. If there is residual liquid outside the outlet of the filling head 21, the controller then controls the first electric push rod 24 to extend further, driving the filling head 21 to move downward. At this time, the internal space of the filling head 21 increases, forming a negative pressure. Under the action of negative pressure, the residual liquid outside the filling head 21 is sucked into the interior.

[0034] The controller starts the servo motor 36, which drives the second electric push rod 32 to rotate via the self-locking reducer 35, adjusting the horizontal position of the sealing plate 34 so that it is aligned with the outlet of the filling head 21. Then, the controller controls the second electric push rod 32 to extend, driving the adjusting plate 33 and the sealing plate 34 to move upward. The sealing plate 34 fits tightly against the outlet of the filling head 21, sealing the outlet of the filling head 21 and preventing residual liquid from dripping.

[0035] When filling is required again, the controller first controls the second electric push rod 32 to retract, causing the sealing plate 34 to move downward and disengage from the outlet of the filling head 21; then controls the servo motor 36 to reverse and remove the sealing plate 34; then controls the first electric push rod 24 to extend, so that the filling head 21 returns to the filling position; finally controls the solenoid valve 25 to open, and performs the next filling operation.

[0036] Furthermore, all contents not described in detail in this specification are existing technologies known to those skilled in the art, and all electrical components mentioned in this document are powered by external power supply lines.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drip-proof filling head, comprising a delivery pipe (1), characterized in that: The outside of the delivery pipe (1) is provided with an anti-drip component (2) and an auxiliary component (3). The anti-drip component (2) includes a filling head (21). The filling head (21) is slidably sleeved on the bottom of the delivery pipe (1). The bottom of the delivery pipe (1) is connected to the inside of the filling head (21). A first horizontal plate (22) is fixedly installed on the outside of the delivery pipe (1). A first electric push rod (24) is fixedly installed at the bottom of the first horizontal plate (22). A moving plate (23) is fixedly installed at the output end of the first electric push rod (24). The moving plate (23) is fixedly installed on the outside of the filling head (21). The first horizontal plate (22) is located above the moving plate (23).

2. The anti-drip filling head according to claim 1, characterized in that: A sealing gasket (26) is embedded in the outer wall of the delivery pipe (1), and the sealing gasket (26) is located inside the filling head (21) and the delivery pipe (1).

3. The anti-drip filling head according to claim 1, characterized in that: A solenoid valve (25) is fixedly installed on the inner side of the delivery pipe (1). The solenoid valve (25) is located above the filling head (21). The solenoid valve (25) and the first electric push rod (24) are both electrically connected to the controller of the drip irrigation equipment.

4. The anti-drip filling head according to claim 1, characterized in that: The auxiliary component (3) includes a second horizontal plate (31), which is fixedly installed on the outside of the conveying pipe (1). A second electric push rod (32) is fixedly installed at the bottom of the second horizontal plate (31). An adjusting plate (33) is fixedly installed at the output end of the second electric push rod (32). A sealing plate (34) is fixedly installed at the top of the adjusting plate (33).

5. A drip-proof filling head according to claim 4, characterized in that: A self-locking reducer (35) is fixedly installed on the top of the second horizontal plate (31). A servo motor (36) is fixedly installed on the top of the self-locking reducer (35). The output end of the servo motor (36) is fixedly connected to the input end of the self-locking reducer (35). The output end of the self-locking reducer (35) moves through the interior of the second horizontal plate (31) and is fixedly connected to the second electric push rod (32).

6. The anti-drip filling head according to claim 5, characterized in that: The second electric actuator (32) and the servo motor (36) are both electrically connected to the controller of the drip irrigation equipment.

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