Full-automatic small package filling machine

Abstract

The utility model relates to the technical field of filling machines, and provides a full-automatic small package filling machine. The filling device comprises a filling pipe, a ventilation pipe and a ventilation net, and the filling pipe is used for filling a packaging bag with materials; the filling pipe is sleeved with the ventilation pipe, a gap is reserved between the ventilation pipe and the filling pipe, and an air extraction opening is integrally formed in the ventilation pipe and communicated with the gap between the ventilation pipe and the filling pipe. The ventilation net is arranged on the outer side of the ventilation pipe in a sleeving mode, and a gap is reserved between the ventilation net and the ventilation pipe. In the air exhaust process after filling is completed, the two ends of the breathable net are located inside and outside the packaging bag respectively. According to the full-automatic small package filling machine, after air in a packaging bag is exhausted, the air and the ventilation pipe are communicated through the ventilation net, so that edible oil cannot be sucked in the ventilation pipe in the continuous suction process, and the air in the packaging bag is accurately exhausted.

Description

Technical Field

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

[0002] Due to the decline in demand for household oil, in order to avoid the oil from being exposed to the air for a long time, the packaging form of household oil has changed to small packages. The use of packaging bags is a relatively cost-effective packaging form, but traditional bottled packaging can reduce the internal air content and increase the shelf life by vacuuming. The packaging bag packaging is made of soft materials and has a variable shape, which makes it difficult to accurately calculate the volume of air that needs to be removed, resulting in the oil being extracted and a large amount of residual air.

[0003] In the existing technology, the shelf life is mainly improved by using inert gas to replace the gas inside the packaging bag, omitting the process of extracting the air. However, it is still impossible to accurately remove the air inside the packaging bag, resulting in an increase in the volume of a single package and increased storage and uniform speed costs. In addition, the process of replacing the inert gas will also increase production costs. Utility Model Content

[0004] The purpose of the utility model is to provide a fully automatic small package filling machine. After the air inside the packaging bag is discharged, the fully automatic small package filling machine can connect the atmosphere and the vent pipe through a breathable net, so that the vent pipe will not suck in edible oil during the continuous suction process, thereby achieving accurate discharge of the air inside the packaging bag.

[0005] The utility model provides a fully automatic small package filling machine, comprising:

[0006] A filling tube, which fills the material into the packaging bag;

[0007] A vent pipe, the vent pipe is sleeved on the outside of the filling pipe with a gap between the vent pipe and the filling pipe, and an air extraction port is integrally formed on the vent pipe to communicate with the gap between the vent pipe and the filling pipe;

[0008] A breathable net, wherein the breathable net is sleeved on the outside of the ventilation tube with a gap left between the breathable net and the ventilation tube;

[0009] During the air extraction process after filling is completed, the two ends of the air permeable net are respectively located inside and outside the packaging bag.

[0010] Preferably, the filling tube outlet is provided with a first annular protrusion, and the inner wall of the first annular protrusion is flush with the inner wall of the filling tube.

[0011] Preferably, the filling tube outlet is further provided with a second annular protrusion, the outer wall of the second annular protrusion is flush with the outer wall of the filling tube, and a gap is left between the second annular protrusion and the first annular protrusion.

[0012] Preferably, the height of the second annular protrusion is higher than the height of the first annular protrusion.

[0013] Preferably, a guide plate is fixedly installed in the gap between the filling tube and the ventilation tube, the length direction of the guide plate is the same as the length direction of the ventilation tube, and the guide plates are evenly distributed along the inside of the ventilation tube.

[0014] Preferably, a diverter plate is fixedly installed in the gap between the filling pipe and the ventilation pipe, the diverter plate and the guide plate have the same distribution pattern, the diverter plate is located above the guide plate, and the diverter plate and the guide plate are staggered.

[0015] Preferably, the vent pipe is further integrally formed with an air inlet, the air inlet being connected to the gap between the vent pipe and the filling pipe, and inert gas is introduced into the gap between the vent pipe and the filling pipe through the air inlet.

[0016] Preferably, the lower end of the breathable net is bent inwardly and fixedly connected to the filling tube, and a gap is left between the lower end of the ventilation tube and the breathable net.

[0017] Preferably, the lower end of the ventilation pipe is fixedly connected to the breathable net, and the lower end of the ventilation pipe is evenly provided with ventilation holes along the port.

[0018] Preferably, the outer surface corners of the breathable net are all rounded.

[0019] The technical solution of the utility model completes the filling through the filling tube, and the vent tube discharges the air inside the packaging bag. After the air is discharged, the packaging bag is adsorbed on the breathable net, and the air enters from above the breathable net, flows along the gap between the breathable net and the vent tube, and enters the vent tube, thereby preventing the vent tube from sucking in the filling material and realizing the precise discharge of the air inside the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a cross-sectional view of a fully automatic small package filling machine of the utility model;

[0022] Figure 2 for Figure 1 Axonometric drawing of a medium-sized fully automatic small package filling machine;

[0023] Figure 3 for Figure 1 Assembly drawing of the guide plate and diverter plate in the fully automatic small package filling machine;

[0024] Figure 4 for Figure 1 A partial enlarged view of the first structure at point A in the fully automatic small package filling machine;

[0025] Figure 5 for Figure 1 A partial enlarged view of the second structure at point A in the fully automatic small package filling machine.

[0026] Description of reference numerals:

[0027] 1. Filling tube; 11. First annular protrusion; 12. Second annular protrusion; 2. Ventilation tube; 21. Guide plate; 22. Diverter plate; 3. Breathable net. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] 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", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0030] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0031] Combine Figures 1 to 5 As shown, the present invention provides a fully automatic small package filling machine comprising a filling tube 1, a vent tube 2 and a breathable net 3.

[0032] Combine Figures 1 to 5 As shown, the filling tube 1 fills the material into the packaging bag; the vent tube 2 is sleeved on the outside of the filling tube 1 with a gap left between the vent tube 2 and the filling tube 1, and the vent tube 2 is integrally formed with an exhaust port connecting the gap between the vent tube 2 and the filling tube 1; the breathable net 3 is sleeved on the outside of the vent tube 2 with a gap left between the breathable net 3 and the vent tube 2; during the exhaust process after the filling is completed, the two ends of the breathable net 3 are respectively located inside and outside the packaging bag.

[0033] In this embodiment, after filling is completed through the filling tube 1, the vent tube 2 discharges the air inside the packaging bag. After the air is discharged, the packaging bag is adsorbed on the breathable mesh 3. The air enters from above the breathable mesh 3 and flows along the gap between the breathable mesh 3 and the vent tube 2 and enters the vent tube 2, thereby preventing the vent tube 2 from sucking in the filling material and achieving accurate discharge of the air inside the packaging bag.

[0034] In this embodiment, air is continuously sucked in through the vent tube 2 to ensure that the air inside the packaging bag is completely discharged. At the same time, the breathable mesh 3 is used to prevent the vent tube 2 from sucking in the filling material. At the same time, the air passing through the breathable mesh 3 flows along the outer wall of the vent tube 2, so that the effect of the air sucked in by the vent tube 2 can mainly act on the air inside the packaging bag.

[0035] In some embodiments, combined Figure 4 、 Figure 5As shown, the discharge port of the filling tube 1 is provided with a first annular protrusion 11, and the inner wall of the first annular protrusion 11 is flush with the inner wall of the filling tube 1. Because the filling material is edible oil, the edible oil remaining at the lower end of the filling tube 1 will flow horizontally along the transverse plane. The function of the first annular protrusion 11 is to prevent the edible oil remaining in the filling tube 1 from flowing horizontally.

[0036] In some embodiments, combined Figure 4 、 Figure 5 As shown, the discharge port of the filling tube 1 is also provided with a second annular protrusion 12, the outer wall of the second annular protrusion 12 is flush with the outer wall of the filling tube 1, and a gap is left between the second annular protrusion 12 and the first annular protrusion 11, and the groove formed by the gap serves to limit the lateral flow of residual edible oil.

[0037] In some embodiments, combined Figure 4 、 Figure 5 As shown, the height of the second annular protrusion 12 is higher than the height of the first annular protrusion 11. Through the height design, the residual cooking oil is located behind the air intake of the vent pipe 2, ensuring that the suction force does not act on the residual cooking oil.

[0038] In some embodiments, combined Figure 3 As shown, a guide plate 21 is fixedly installed in the gap between the filling tube 1 and the ventilation tube 2. The length direction of the guide plate 21 is the same as the length direction of the ventilation tube 2. The guide plates 21 are evenly distributed along the inside of the ventilation tube 2. The guide plates 21 are used to control the direction of air flow and improve the stability of the airflow.

[0039] In some embodiments, combined Figure 3 As shown, a diverter plate 22 is fixedly installed in the gap between the filling tube 1 and the ventilation tube 2. The distribution pattern of the diverter plate 22 and the guide plate 21 is the same. The diverter plate 22 is located above the guide plate 21 and the diverter plate 22 and the guide plate 21 are staggered. The diverter plate 22 can divert the airflow between the guide plates 21 to further improve the uniformity of the airflow.

[0040] In some embodiments, combined Figure 2 As shown, the vent tube 2 is also integrally formed with an air inlet, which is connected to the gap between the vent tube 2 and the filling tube 1. Inert gas is introduced into the gap between the vent tube 2 and the filling tube 1 through the air inlet. The purpose of introducing the inert gas here is mainly to fully open the packaging bag through the airflow. The use of inert gas can better protect the edible oil than air.

[0041] In some embodiments, combined Figure 1 、 Figure 4As shown, the lower end of the breathable net 3 is bent inward and fixedly connected to the filling tube 1, and a gap is left between the lower end of the vent tube 2 and the breathable net 3, so that the vent tube 2 and the inside of the breathable net 3 are directly connected, ensuring that the packaging bag will not block the vent tube 2 during the suction process.

[0042] In some embodiments, combined Figure 1 、 Figure 5 As shown, the lower end of the ventilation tube 2 is fixedly connected to the breathable net 3, and ventilation holes are evenly opened along the port of the lower end of the ventilation tube 2. The ventilation tube 2 and the inside of the breathable net 3 are directly connected through the ventilation holes to prevent the packaging bag from blocking the ventilation tube 2.

[0043] In some embodiments, combined Figure 4 、 Figure 5 As shown, the edges and corners of the outer surface of the breathable mesh 3 are all provided with rounded corners. The rounded corner design can effectively increase the smoothness of the outer surface of the breathable mesh 3, avoiding damage to the packaging bag when the packaging bag is adsorbed on the breathable mesh 3.

[0044] Working process: After the filling tube 1 is inserted into the packaging bag to complete the filling, the vent tube 2 begins to absorb the air in the packaging bag. As the air in the packaging bag decreases, the packaging bag is adsorbed on the breathable mesh 3, and the outside air begins to enter the vent tube 2 along the gap between the breathable mesh 3 and the vent tube 2. The vent tube 2 continues to absorb air to ensure that the air in the packaging bag is completely discharged, and finally heat seals are performed at the position below the filling tube 1.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fully automatic small package filling machine, characterized in that: include: A filling tube (1), wherein the filling tube (1) fills the material into the packaging bag; A vent pipe (2), the vent pipe (2) being sleeved on the outside of the filling pipe (1) with a gap between the vent pipe (2) and the filling pipe (1), and an air extraction port being integrally formed on the vent pipe (2) and communicating with the gap between the vent pipe (2) and the filling pipe (1); A breathable net (3), wherein the breathable net (3) is sleeved on the outside of the ventilation tube (2) with a gap left between the breathable net (3) and the ventilation tube (2); During the air extraction process after filling is completed, the two ends of the air permeable net (3) are respectively located inside and outside the packaging bag.

2. The fully automatic small package filling machine according to claim 1 is characterized in that: The discharge port of the filling tube (1) is provided with a first annular protrusion (11), and the inner wall of the first annular protrusion (11) is flush with the inner wall of the filling tube (1).

3. The fully automatic small package filling machine according to claim 2, characterized in that: The filling tube (1) discharge port is further provided with a second annular protrusion (12), the outer wall of the second annular protrusion (12) is flush with the outer wall of the filling tube (1), and a gap is left between the second annular protrusion (12) and the first annular protrusion (11).

4. The fully automatic small package filling machine according to claim 3 is characterized in that: The height of the second annular protrusion (12) is higher than the height of the first annular protrusion (11).

5. The fully automatic small package filling machine according to claim 1 is characterized in that: A guide plate (21) is fixedly installed in the gap between the filling tube (1) and the ventilation tube (2); the length direction of the guide plate (21) is the same as the length direction of the ventilation tube (2); and the guide plates (21) are evenly distributed along the interior of the ventilation tube (2).

6. The fully automatic small package filling machine according to claim 5, characterized in that: A diverter plate (22) is fixedly installed in the gap between the filling pipe (1) and the vent pipe (2); the diverter plate (22) and the guide plate (21) have the same distribution pattern; the diverter plate (22) is located above the guide plate (21); and the diverter plate (22) and the guide plate (21) are staggered.

7. The fully automatic small package filling machine according to claim 1, characterized in that: The vent pipe (2) is also integrally formed with an air inlet, the air inlet communicating with the gap between the vent pipe (2) and the filling pipe (1), and inert gas is introduced into the gap between the vent pipe (2) and the filling pipe (1) through the air inlet.

8. The fully automatic small package filling machine according to claim 1, characterized in that: The lower end of the air permeable net (3) is bent inwardly and fixedly connected to the filling tube (1), and a gap is left between the lower end of the ventilation tube (2) and the air permeable net (3).

9. The fully automatic small package filling machine according to claim 8, characterized in that: The lower end of the ventilation pipe (2) is fixedly connected to the ventilation net (3), and ventilation holes are evenly opened along the lower end of the ventilation pipe (2).

10. The fully automatic small package filling machine according to claim 1, characterized in that: The outer surface corners of the breathable net (3) are all provided with rounded corners.

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