A leveling, clamping, quantitative liquid filling control mechanism, packaging equipment, and liquid filling method

Abstract

The present invention discloses a leveling, clamping, and quantitative liquid filling control mechanism, comprising a mounting frame, a traction component, a first swinging frame, a second swinging frame, a leveling, clamping component, and a transmission component. The traction component comprises a first traction roller and a second traction roller disposed oppositely, the first traction roller and the second traction roller rotating in opposite directions. The first swinging frame is swingably mounted on the mounting frame; the second swinging frame is swingably mounted oppositely to the first swinging frame. The leveling, clamping component comprises a first clamping roller and a second clamping roller disposed oppositely, the first clamping roller being mounted on the first swinging frame, connected to the first traction roller, and rotating synchronously in the same direction. The second clamping roller is mounted on the second swinging frame, connected to the second traction roller, and rotating synchronously in the same direction. The transmission component is connected to the first swinging frame and the second swinging frame, respectively, and drives the first and second swinging frames to move in opposite directions. The present invention also discloses packaging equipment and a liquid filling method. The present invention achieves quantitative liquid filling and improves production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and in particular to a leveling, clamping, quantitative liquid filling control mechanism, packaging equipment and a liquid filling method. Background Art

[0002] Non-solid items are typically packaged in stand-up bags. These bags have a bottom that can stand upright, two sides connected to the bottom, and a nozzle facing the bottom and equipped with a nozzle, forming a packaging cavity. When packaging non-solid items, the packaging film material is first folded into the shape of the bag and then transported to the packaging process for packaging. During packaging, the bottom and nozzle are sealed first, while the sides are left unsealed to allow for insertion into a filling pipe for filling. The bag is then transported to the filling process for filling. After filling, the sides are sealed to complete the packaging process.

[0003] In the prior art, liquid filling packaging has the problem of low packaging efficiency. In view of this, a leveling, clamping, quantitative liquid filling control mechanism, packaging equipment and liquid filling method are developed to improve packaging efficiency. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent. To this end, one object of the present invention is to provide a leveling and clamping quantitative liquid filling control mechanism to achieve quantitative liquid filling and improve production efficiency.

[0005] A second object of the present invention is to provide a packaging device.

[0006] The third object of the present invention is to provide a liquid filling method.

[0007] To achieve the above-mentioned objectives, a first embodiment of the present invention provides a leveling, clamping, and quantitative liquid filling control mechanism, comprising:

[0008] Mounting rack;

[0009] A traction component, the traction component comprising a first traction roller and a second traction roller arranged opposite to each other, the first traction roller and the second traction roller rotating in opposite directions;

[0010] a first swing frame, the first swing frame being swingably disposed on the mounting frame;

[0011] a second swing frame, the second swing frame being arranged opposite to the first swing frame and being swingably arranged on the mounting frame;

[0012] A leveling clamping component, the leveling clamping component comprising a first clamping roller and a second clamping roller arranged opposite to each other, the first clamping roller being arranged on the first swinging frame, connected to the first traction roller and rotating synchronously in the same direction, the second clamping roller being arranged on the second swinging frame, connected to the second traction roller and rotating synchronously in the same direction;

[0013] The transmission component is connected to the first swing frame and the second swing frame respectively, and drives the first swing frame and the second swing frame to move toward each other, so that the first clamping roller and the second clamping roller are close to or open.

[0014] According to a leveling, clamping, and quantitative liquid filling control mechanism of an embodiment of the present invention, during liquid filling, an infusion tube is inserted into the coating material, and liquid is infused into the coating material. The traction component pulls the coating material to move at a fixed time and distance, and the coating material is clamped and squeezed by the first clamping roller and the second clamping roller. When the coating material moves through the first clamping roller and the second clamping roller to a complete packaging bag position, the transmission component drives the first clamping roller and the second clamping roller to open, and the liquid enters the coating material squeezed by the first clamping roller and the second clamping roller and is sealed. Then the transmission component drives the first clamping roller and the second clamping roller to move closer to re-squeeze the coating material, squeezing the liquid in the coating material upwards. At the same time, the traction component continues to pull the coating material to move at a fixed time and distance, thereby successively realizing quantitative liquid filling and improving production efficiency.

[0015] In addition, the leveling, clamping, and quantitative liquid filling control mechanism proposed in the above embodiment of the present invention may also have the following additional technical features:

[0016] Optionally, the first traction roller and the second traction roller are driven by a driving component to rotate towards each other; the driving component includes a driving motor, a driving wheel, and a driven wheel; the rotating shaft of the driving motor is connected to the first traction roller to drive the first traction roller to rotate; the driving wheel is arranged on the rotating shaft of the driving motor and is driven to rotate by the driving motor; the driven wheel is engaged with the driving wheel and connected to the second traction roller to drive the second traction roller to rotate.

[0017] Specifically, the first clamping roller is arranged on a first rotating shaft, and the first rotating shaft is connected to the driving wheel through a belt; the second clamping roller is arranged on a second rotating shaft, and the second rotating shaft is connected to the driven wheel through a belt.

[0018] Optionally, the transmission component includes a transmission motor, a crank arm, a first connecting rod, and a second connecting rod; the transmission motor is arranged on the mounting frame; the crank arm is rotatably arranged on the mounting frame, the first end of the crank arm is connected to the rotating shaft of the transmission motor, one end of the first connecting rod is connected to the second end of the crank arm, and the other end of the first connecting rod is connected to the first swing frame; one end of the second connecting rod is connected to the middle bend of the crank arm, and the other end of the second connecting rod is connected to the second swing frame.

[0019] Specifically, the first connecting rod includes a rotating rod and connecting rods connected to both ends of the rotating rod; the rotating rod is rotatably arranged on the mounting frame, and the rotating rod is fixedly connected to the crank arm; the connecting rod is connected to the first swing frame.

[0020] Specifically, the rotating shaft of the transmission motor is connected to the rotating arm, the rotating arm is connected to the pull rod, and the pull rod is connected to the first end of the crank arm.

[0021] Optionally, a row of first leveling auxiliary rollers is provided on the first swing frame along the conveying direction of the film material, and a row of second leveling auxiliary rollers is provided on the second swing frame along the conveying direction of the film material.

[0022] Optionally, a liquid level sensor is provided between the traction component and the leveling clamping component.

[0023] To achieve the above-mentioned object, a second embodiment of the present invention provides a packaging device including a leveling, clamping and quantitative liquid filling control mechanism.

[0024] According to a packaging device of an embodiment of the present invention, when filling liquid, an infusion tube is inserted into the coating material, and liquid is infused into the coating material, and the traction component pulls the coating material to move at a fixed time and distance, and the coating material is clamped and squeezed by the first clamping roller and the second clamping roller. When the coating material moves through the first clamping roller and the second clamping roller to a complete packaging bag position, the transmission component drives the first clamping roller and the second clamping roller to open, and the liquid enters the coating material squeezed by the first clamping roller and the second clamping roller and is sealed, and then the transmission component drives the first clamping roller and the second clamping roller to move closer to re-squeeze the coating material, squeezing the liquid in the coating material upwards, and at the same time, the traction component continues to pull the coating material to move at a fixed time and distance, thereby realizing quantitative liquid filling in sequence and improving production efficiency.

[0025] To achieve the above-mentioned object, a third embodiment of the present invention provides a liquid filling method, comprising the following steps:

[0026] First, the traction component pulls the film material to move at a fixed time and distance, driving the film material to pass through the first clamping roller and the second clamping roller for clamping and squeezing. When the film material moves through the first clamping roller and the second clamping roller to a complete packaging bag position, the lower part of the film material is sealed;

[0027] Second, the infusion tube inserted into the coating material is used to infuse liquid into the coating material;

[0028] Third, the transmission component drives the first clamping roller and the second clamping roller to open, and the liquid enters the coating material squeezed by the first clamping roller and the second clamping roller;

[0029] Fourth, the transmission component drives the first clamping roller and the second clamping roller to move closer and re-squeeze the coating material, squeezing the liquid in the coating material upwards. At the same time, the traction component continues to pull the coating material at a fixed time and distance to move it to a complete packaging bag position, the lower part of the coating material is sealed, and the liquid is filled in turn.

[0030] A liquid filling method according to an embodiment of the present invention achieves quantitative liquid filling and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 2. It is a schematic structural diagram of a leveling, clamping, quantitative liquid filling control mechanism according to an embodiment of the present invention;

[0032] Figure 2 2. It is a schematic diagram of the bottom structure of a leveling, clamping and quantitative liquid filling control mechanism according to an embodiment of the present invention;

[0033] Figure 3 2. It is a schematic diagram of the back structure of a leveling, clamping and quantitative liquid filling control mechanism according to an embodiment of the present invention;

[0034] Figure 4 It is a left side view of a leveling, clamping and quantitative liquid filling control mechanism according to an embodiment of the present invention;

[0035] Figure 5 It is a right side view of a leveling, clamping and quantitative liquid filling control mechanism according to an embodiment of the present invention;

[0036] Figure 6 It is a rear view of a leveling, clamping, quantitative liquid filling control mechanism according to an embodiment of the present invention;

[0037] Figure 7 The figure is a schematic diagram of a packaging process of a packaging device according to an embodiment of the present invention.

[0038] Description of labels

[0039] Mounting frame 1 Traction component 2

[0040] First pulling roller 21 Second pulling roller 22

[0041] First rotation axis 23 Second rotation axis 24

[0042] First swing frame 3 First leveling auxiliary roller 31

[0043] Second swing frame 4 Second leveling auxiliary roller 41

[0044] Leveling clamping component 5 first clamping roller 51

[0045] Second clamping roller 52 transmission component 6

[0046] Transmission motor 61 Rotating arm 611

[0047] Pull rod 612 Crank arm 62

[0048] First connecting rod 63 Rotating rod 631

[0049] Connecting rod 632 Second connecting rod 64

[0050] Driving component 7 driving motor 71

[0051] Driving wheel 72 Driven wheel 73

[0052] Liquid level sensor 8. DETAILED DESCRIPTION

[0053] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0054] The traction component of the present invention pulls the coating material to move at a fixed time and distance, and the coating material is clamped and squeezed by the first clamping roller and the second clamping roller. When the coating material moves through the first clamping roller and the second clamping roller to a complete packaging bag position, the transmission component drives the first clamping roller and the second clamping roller to open, and liquid enters the coating material squeezed by the first clamping roller and the second clamping roller and is encapsulated. Then the transmission component drives the first clamping roller and the second clamping roller to move closer to re-squeeze the coating material, squeezing the liquid in the coating material upward. At the same time, the traction component continues to pull the coating material to move at a fixed time and distance, thereby realizing quantitative liquid filling in sequence and improving production efficiency.

[0055] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0056] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0057] like Figures 1 to 6 As shown, a leveling and clamping quantitative liquid filling control mechanism according to an embodiment of the present invention includes a mounting frame 1, a traction component 2, a first swing frame 3, a second swing frame 4, a leveling and clamping component 5, and a transmission component 6.

[0058] The traction component 2 includes a first traction roller 21 and a second traction roller 22 that are arranged opposite to each other. The first traction roller 21 and the second traction roller 22 rotate in opposite directions.

[0059] Optionally, the first traction roller 21 and the second traction roller 22 are driven by a driving component 7 to rotate toward each other. The driving component 7 includes a driving motor 71, a driving wheel 72, and a driven wheel 73. The rotating shaft of the driving motor 71 is connected to the first traction roller 21, driving the first traction roller 21 to rotate. The driving wheel 72 is disposed on the rotating shaft of the driving motor 71 and is driven to rotate by the driving motor 71. The driven wheel 73 engages with the driving wheel 72 and is connected to the second traction roller 22 to drive the second traction roller 22 to rotate.

[0060] Specifically, the first clamping roller 51 is provided on the first rotating shaft 23, and the first rotating shaft 23 is connected to the driving wheel 72 through a belt; the second clamping roller 52 is provided on the second rotating shaft 24, and the second rotating shaft 24 is connected to the driven wheel 73 through a belt. Figure 3 As shown, auxiliary rollers and guide rollers are provided between the driving wheel 72 and the first rotating shaft 23, and between the driven wheel 73 and the second rotating shaft 24. The guide rollers are used to tension the belt.

[0061] The first swing frame 3 is swingably disposed on the mounting frame 1 .

[0062] The second swing frame 4 is arranged opposite to the first swing frame 3 and can be swingably arranged on the mounting frame 1 .

[0063] Optionally, a row of first leveling auxiliary rollers 31 are provided on the first swing frame 3 along the conveying direction of the film material, and a row of second leveling auxiliary rollers 41 are provided on the second swing frame 4 along the conveying direction of the film material.

[0064] The leveling clamping component 5 includes a first clamping roller 51 and a second clamping roller 52 arranged opposite to each other. The first clamping roller 51 is arranged on the first swing frame 3, connected to the first traction roller 21 and rotates synchronously in the same direction. The second clamping roller 52 is arranged on the second swing frame 4, connected to the second traction roller 22 and rotates synchronously in the same direction.

[0065] The transmission component 6 is connected to the first swing frame 3 and the second swing frame 4 respectively, and drives the first swing frame 3 and the second swing frame 4 to move toward each other, so that the first clamping roller 51 and the second clamping roller 52 are moved closer or opened.

[0066] Optionally, the transmission component 6 includes a transmission motor 61, a crank arm 62, a first connecting rod 63, and a second connecting rod 64; the transmission motor 61 is arranged on the mounting frame 1; the crank arm 62 is rotatably arranged on the mounting frame 1, the first end of the crank arm 62 is connected to the rotating shaft of the transmission motor 61, one end of the first connecting rod 63 is connected to the second end of the crank arm 62, and the other end of the first connecting rod 63 is connected to the first swing frame 3; one end of the second connecting rod 64 is connected to the middle bend of the crank arm 62, and the other end of the second connecting rod 64 is connected to the second swing frame 4.

[0067] Specifically, the first connecting rod 63 includes a rotating rod 631 and a connecting rod 632 connected to both ends of the rotating rod 631; the rotating rod 631 can be rotatably set on the mounting frame 1, and the rotating rod 631 is fixedly connected to the crank arm 62; the connecting rod 632 is connected to the first swing frame 3.

[0068] Specifically, the rotating shaft of the transmission motor 61 is connected to the rotating arm 611 , the rotating arm 611 is connected to the pull rod 612 , and the pull rod 612 is connected to the first end of the crank arm 62 .

[0069] When the rotating shaft of the transmission motor 61 rotates clockwise, the rotating arm 611 pulls the pull rod 612 to move, the pull rod 612 drives the crank arm 62 to swing counterclockwise, and the crank arm 62 drives the first connecting rod 63 and the second connecting rod 64 to move toward each other and approach; similarly, when the rotating shaft of the transmission motor 61 rotates counterclockwise, the rotating arm 611 pulls the pull rod 612 to move, the pull rod 612 drives the crank arm 62 to swing clockwise, and the crank arm 62 drives the first connecting rod 63 and the second connecting rod 64 to move toward each other and separate.

[0070] Optionally, a liquid level sensor 8 is installed between the pulling component 2 and the leveling and clamping component 5. The pulling component 2 ensures that a certain length of the coating material is pulled each time. The liquid level sensor 8, in conjunction with an external infusion screw pump, maintains a substantially constant liquid level, thereby ensuring a stable liquid flow rate. The transmission component 6 controls the width and duration of the opening of the leveling and clamping component 5, thereby controlling the liquid's cross-sectional area and flow time. The stability of the flow rate, cross-sectional area, and flow time ensures a fixed amount of liquid is filled.

[0071] When the leveling, clamping, and quantitative filling control mechanism is filling liquid, an infusion tube is inserted into the coating material, and liquid is infused into the coating material. The traction component 2 pulls the coating material to move at a fixed time and distance, and the coating material is clamped and squeezed by the first clamping roller 51 and the second clamping roller 52. When the coating material moves through the first clamping roller 51 and the second clamping roller 52 to a complete packaging bag position, the transmission component 6 drives the first clamping roller 51 and the second clamping roller 52 to open, and the liquid enters the coating material squeezed by the first clamping roller 51 and the second clamping roller 52 and is sealed. Then the transmission component 6 drives the first clamping roller 51 and the second clamping roller 52 to move closer to re-squeeze the coating material, squeezing the liquid in the coating material upwards. At the same time, the traction component 2 continues to pull the coating material to move at a fixed time and distance, thereby realizing quantitative filling and improving production efficiency.

[0072] like Figures 1 to 7 As shown, a packaging device according to an embodiment of the present invention includes the above-mentioned leveling, clamping and quantitative liquid filling control mechanism, wherein the leveling, clamping and quantitative liquid filling control mechanism includes a mounting frame 1, a traction component 2, a first swing frame 3, a second swing frame 4, a leveling and clamping component 5, and a transmission component 6.

[0073] The pulling component 2 includes a first pulling roller 21 and a second pulling roller 22 that are arranged opposite to each other, and the first pulling roller 21 and the second pulling roller 22 rotate toward each other. The first swing frame 3 is swingably arranged on the mounting frame 1. The second swing frame 4 is arranged opposite to the first swing frame 3 and is swingably arranged on the mounting frame 1. The leveling clamping component 5 includes a first clamping roller 51 and a second clamping roller 52 that are arranged opposite to each other. The first clamping roller 51 is arranged on the first swing frame 3, connected to the first pulling roller 21, and rotates synchronously in the same direction. The second clamping roller 52 is arranged on the second swing frame 4, connected to the second pulling roller 22, and rotates synchronously in the same direction. The transmission component 6 is connected to the first swing frame 3 and the second swing frame 4, respectively, and drives the first swing frame 3 and the second swing frame 4 to move toward each other, so that the first clamping roller 51 and the second clamping roller 52 are moved closer or open.

[0074] When the packaging equipment is filling liquid, an infusion tube is inserted into the coating material, and liquid is infused into the coating material. The traction component 2 pulls the coating material to move at a fixed time and distance, and the coating material is clamped and squeezed by the first clamping roller 51 and the second clamping roller 52. When the coating material moves through the first clamping roller 51 and the second clamping roller 52 to a complete packaging bag position, the transmission component 6 drives the first clamping roller 51 and the second clamping roller 52 to open, and the liquid enters the coating material squeezed by the first clamping roller 51 and the second clamping roller 52 and is sealed. Then the transmission component 6 drives the first clamping roller 51 and the second clamping roller 52 to move closer to re-squeeze the coating material, squeezing the liquid in the coating material upwards. At the same time, the traction component 2 continues to pull the coating material to move at a fixed time and distance, thereby realizing quantitative liquid filling in sequence and improving production efficiency.

[0075] like Figures 1 to 7 As shown, a liquid filling method according to an embodiment of the present invention includes the following steps:

[0076] First, the traction component 2 pulls the film material to move at a fixed time and distance, driving the film material to pass through the first clamping roller 51 and the second clamping roller 52 for clamping and squeezing. When the film material moves through the first clamping roller 51 and the second clamping roller 52 to a complete packaging bag position, the lower part of the film material is sealed.

[0077] Second, the infusion tube inserted into the coating material is used to infuse liquid into the coating material.

[0078] Third, the transmission component 6 drives the first clamping roller 51 and the second clamping roller 52 to open, and the liquid enters the coating material after being squeezed by the first clamping roller 51 and the second clamping roller 52.

[0079] Fourth, the transmission component 6 drives the first and second clamping rollers 51 and 52 closer together to re-squeeze the coating material, pushing the liquid in the coating material upward. Simultaneously, the pulling component 2 continues to pull the coating material at a fixed interval and time. When a complete bag is formed, the lower portion of the coating material is sealed and liquid is sequentially filled. This achieves quantitative filling and improves production efficiency.

[0080] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0081] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0082] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0083] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0084] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0085] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A leveling and clamping quantitative filling control mechanism, characterized in that: include: Mounting rack; A traction component, the traction component comprising a first traction roller and a second traction roller arranged opposite to each other, the first traction roller and the second traction roller rotating in opposite directions; a first swing frame, the first swing frame being swingably disposed on the mounting frame; a second swing frame, the second swing frame being arranged opposite to the first swing frame and being swingably arranged on the mounting frame; A leveling clamping component, the leveling clamping component comprising a first clamping roller and a second clamping roller arranged opposite to each other, the first clamping roller being arranged on the first swinging frame, connected to the first traction roller and rotating synchronously in the same direction, the second clamping roller being arranged on the second swinging frame, connected to the second traction roller and rotating synchronously in the same direction; a transmission component, the transmission component being connected to the first swing frame and the second swing frame respectively, and driving the first swing frame and the second swing frame to move toward each other, so as to move the first clamping roller and the second clamping roller closer to or open; The transmission component includes a transmission motor, a crank arm, a first connecting rod, and a second connecting rod; the transmission motor is arranged on the mounting frame; the crank arm is rotatably arranged on the mounting frame, the first end of the crank arm is connected to the rotating shaft of the transmission motor, one end of the first connecting rod is connected to the second end of the crank arm, and the other end of the first connecting rod is connected to the first swing frame; one end of the second connecting rod is connected to the middle bend of the crank arm, and the other end of the second connecting rod is connected to the second swing frame; The first connecting rod includes a rotating rod and connecting rods connected to both ends of the rotating rod; the rotating rod is rotatably arranged on the mounting frame, the rotating rod is fixedly connected to the crank arm; the connecting rod is connected to the first swing frame; The rotating shaft of the transmission motor is connected to the rotating arm, the rotating arm is connected to the pull rod, and the pull rod is connected to the first end of the crank arm.

2. A leveling, clamping, quantitative liquid filling control mechanism according to claim 1, characterized in that: The first traction roller and the second traction roller are driven to rotate towards each other by a driving component; the driving component includes a driving motor, a driving wheel, and a driven wheel; the rotating shaft of the driving motor is connected to the first traction roller to drive the first traction roller to rotate; the driving wheel is arranged on the rotating shaft of the driving motor and is driven to rotate by the driving motor; the driven wheel is engaged with the driving wheel and connected to the second traction roller to drive the second traction roller to rotate.

3. A leveling, clamping, quantitative liquid filling control mechanism according to claim 2, characterized in that: The first clamping roller is arranged on a first rotating shaft, and the first rotating shaft is connected to the driving wheel through a belt; the second clamping roller is arranged on a second rotating shaft, and the second rotating shaft is connected to the driven wheel through a belt.

4. A leveling, clamping, quantitative liquid filling control mechanism according to claim 1, characterized in that: The first swing frame is provided with a row of first leveling auxiliary rollers along the conveying direction of the film material, and the second swing frame is provided with a row of second leveling auxiliary rollers parallel to the first leveling auxiliary rollers along the conveying direction of the film material.

5. A leveling, clamping, quantitative liquid filling control mechanism according to claim 1, characterized in that: A liquid level sensor is provided between the traction component and the leveling clamping component.

6. A packaging device, characterized in that: It comprises the leveling, clamping and quantitative liquid filling control mechanism as described in any one of claims 1 to 5.

7. A liquid filling method, characterized in that: The following steps are involved: First, the traction component pulls the film material to move at a fixed time and distance, driving the film material to pass through the first clamping roller and the second clamping roller for clamping and squeezing. When the film material moves through the first clamping roller and the second clamping roller to a complete packaging bag position, the lower part of the film material is sealed; Second, the infusion tube inserted into the coating material is used to infuse liquid into the coating material; Third, the transmission component drives the first clamping roller and the second clamping roller to open, and the liquid enters the coating material squeezed by the first clamping roller and the second clamping roller; Fourth, the transmission component drives the first clamping roller and the second clamping roller to move closer and re-squeeze the coating material, squeezing the liquid in the coating material upwards. At the same time, the traction component continues to pull the coating material at a fixed time and distance to move it to a complete packaging bag position, the lower part of the coating material is sealed, and the liquid is filled in turn.

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