Plastic bag bagging machine

Abstract

The utility model provides a plastic bag bagging machine, and relates to the field of packaging machines. The plastic bag bagging machine comprises an external negative pressure box body, and a bag containing internal box body is arranged in the external negative pressure box body. According to the plastic bag bagging machine, through mutual cooperation of the external negative pressure box body, the supporting legs, the crosspieces, the negative pressure exhaust holes, the sealing rings, the negative pressure exhaust fan, the bag containing internal box body and the suction holes, the plastic bags can be automatically opened through the air pressure intensity; by means of a holding ring, a bag opening moving support, a first movable plate, a second movable plate, a suction hole, a center fixing shaft, a middle wheel and an outer wheel, after a packaging bag is opened through pressure intensity, if the packaging bag is not completely unfolded, the packaging bag can be completely opened through manual operation, and the problem that when a current plastic bag bagging machine conducts product filling, due to the fact that plastic bags are not prone to being completely opened by itself, the packaging bag cannot be completely opened is solved. Therefore, a gap is easy to exist in the middle of the plastic bag when a product is filled, and the product is easy to splash.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, specifically a plastic bag filling machine. Background Technology

[0002] Plastic bag filling machines, as the name suggests, are machines that automatically package products into bags. They feature precise measurement, ease of use, and high efficiency. There are many types of bag filling machines, and they can be classified in many ways. From different perspectives, they can be categorized as follows: by product state (liquid, block, and granular material bagging machines); by packaging function (inner packaging and outer packaging); by packaging industry (food, daily chemical, textile, etc. bagging machines); by packaging station (single-station and multi-station packaging machines); and by automation level (semi-automatic and fully automatic bagging machines). Currently, when plastic bag filling machines are filling products, because plastic bags are not easily fully opened by themselves, gaps often appear in the middle of the plastic bag during filling, making it easy for the product to spill out. Utility Model Content

[0003] The purpose of this utility model is to provide a plastic bag filling machine that solves the problem that when current plastic bag filling machines are used for product filling, the plastic bags are not easy to fully expand on their own, resulting in gaps in the middle of the plastic bags and easy spillage of the product.

[0004] Technical solution

[0005] To achieve the above objectives, this utility model provides the following technical solution: A plastic bag filling machine includes an external negative pressure chamber, inside which is a bag-holding inner chamber. The outer surface of the bag-holding inner chamber is fixedly connected to the inner wall of the external negative pressure chamber. An suction hole communicating with the interior of the bag-holding inner chamber is opened on the outer surface of the bag-holding inner chamber. A bag-hanging mechanism is fixedly connected to the top of the bag-holding inner chamber. An anti-detachment groove is opened on the side of the bag-hanging mechanism. A support leg is fixedly connected to the bottom of the external negative pressure chamber. A crossbar is fixedly connected to the right side of the support leg. A negative pressure exhaust fan is attached to the upper surface of the crossbar. A negative pressure exhaust hole communicating with the interior of the external negative pressure chamber is opened at the bottom of the external negative pressure chamber. The air inlet of the negative pressure exhaust fan overlaps with the bottom of the external negative pressure chamber at a position corresponding to the negative pressure exhaust hole. An mounting plate is fixedly connected to the side of the negative pressure exhaust fan. The mounting plate and the crossbar... The sections are fixedly connected by bolts. A junction box is installed on the right side of the negative pressure exhaust fan, and a high-strength power wire is connected to the right side of the junction box. The end of the high-strength power wire is connected to a power plug. Place the plastic bag inside the inner box of the bag holder and hang the plastic bag on the bag hanging mechanism. Use the anti-detachment groove to limit it. Then plug the power plug into the socket to get power. The negative pressure exhaust fan starts to exhaust. First, it extracts the air inside the external negative pressure box, and then it extracts the air inside the inner box of the bag holder through the suction hole, so that the inner box of the bag holder is created with negative pressure. As a result, the plastic bag will be attracted to stick to the inner wall of the inner box of the bag holder, so that the plastic bag unfolds. If it is found that it is not fully unfolded, you can hold the handle and push the bag support and the following structure into the inner box of the bag holder downward until the plastic bag is fully unfolded. Then remove the bag support and the following mechanism. At this time, the filling work can be carried out.

[0006] Furthermore, the suction holes are evenly distributed on the entire outer surface of the inner box of the bag.

[0007] Furthermore, there are two bag-hanging mechanisms, which are symmetrically arranged about the central axis of the inner box of the bag-holding unit.

[0008] Furthermore, a sealing ring is fixedly connected to the air inlet surface of the negative pressure exhaust fan, and the upper surface of the sealing ring overlaps with the bottom of the external negative pressure box.

[0009] Furthermore, the interior of the bag-holding box is provided with a bag-supporting movable bracket, and a grip ring is fixedly connected to the top of the bag-supporting movable bracket.

[0010] Furthermore, a central fixed shaft is fixedly connected to the bottom end of the bag-supporting movable bracket, an intermediate wheel is sleeved on the surface of the central fixed shaft, and an outer wheel is sleeved on the outer surface of the intermediate wheel.

[0011] Furthermore, a first movable plate is fixedly connected to the right side of the intermediate wheel, and a second movable plate is fixedly connected to the left side of the outer wheel. Through the cooperation of bolts and mounting plates, the negative pressure exhaust fan can be disassembled and installed. Through the bag hanging mechanism and anti-detachment groove, the plastic bag can be firmly hung and positioned to prevent the plastic bag from falling downwards during filling.

[0012] This utility model provides a plastic bag filling machine. It has the following beneficial effects:

[0013] This plastic bag filling machine, through the coordinated operation of an external negative pressure chamber, support feet, crossbars, negative pressure exhaust port, sealing ring, negative pressure fan, internal bag-holding chamber, and suction hole, enables the plastic bag to open automatically using air pressure. Through the grip ring, bag-supporting moving bracket, first movable plate, second movable plate, suction hole, central fixed shaft, intermediate wheel, and external wheel, if the bag is not fully expanded after being opened by pressure, it can be fully opened manually. This solves the problem of current plastic bag filling machines where the plastic bag is difficult to fully open on its own, resulting in gaps in the middle of the bag and easy spillage during product filling.

[0014] This plastic bag filling machine allows for the disassembly and installation of the negative pressure exhaust fan through the use of bolts and mounting plates. The bag hanging mechanism and anti-drop groove design ensure that the plastic bags are securely hung and positioned to prevent them from falling downwards during filling. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged view of the local structure at point A in the middle.

[0017] The components include: 1. External negative pressure box, 2. Support feet, 3. Horizontal bar, 4. Negative pressure exhaust port, 5. Sealing ring, 6. Negative pressure exhaust fan, 7. Junction box, 8. Bolt, 9. Mounting plate, 10. High-strength power wire, 11. Power plug, 12. Inner box for placing bags, 13. Bag hanging mechanism, 14. Anti-detachment groove, 15. Grip ring, 16. Bag support moving bracket, 17. First movable plate, 18. Second movable plate, 19. Suction hole, 20. Central fixed shaft, 21. Intermediate wheel, and 22. External wheel. Detailed Implementation

[0018] like Figure 1-2 As shown, this utility model embodiment provides a plastic bag filling machine, including an external negative pressure box 1, and an inner bag-holding box 12 is provided inside the external negative pressure box 1. The outer surface of the inner bag-holding box 12 is fixedly connected to the inner wall of the external negative pressure box 1.

[0019] In Example 1, the outer surface of the inner bag-holding box 12 is provided with suction holes 19 that communicate with the interior of the inner bag-holding box 12. The suction holes 19 are evenly distributed across the entire outer surface of the inner bag-holding box 12. Two bag-hanging mechanisms 13 are fixedly connected to the top of the inner bag-holding box 12, symmetrically arranged about the central axis of the inner bag-holding box 12. Anti-detachment grooves 14 are provided on the sides of the bag-hanging mechanisms 13. Support legs 2 are fixedly connected to the bottom of the outer negative pressure box 1. A crossbar 3 is fixedly connected to the right side of the support legs 2. A negative pressure exhaust fan 6 is attached to the upper surface of the crossbar 3. A negative pressure exhaust hole 4, communicating with the interior of the outer negative pressure box 1, is provided at the bottom of the outer negative pressure box 1. The air inlet of the exhaust fan 6 overlaps with the bottom of the external negative pressure box 1, corresponding to the position of the negative pressure exhaust hole 4. A sealing ring 5 is fixedly connected to the surface of the air inlet of the negative pressure exhaust fan 6. The upper surface of the sealing ring 5 overlaps with the bottom of the external negative pressure box 1. The sealing ring 5 is made of rubber and can play a sealing role, assisting the negative pressure exhaust fan 6 in exhausting air. A mounting plate 9 is fixedly connected to the side of the negative pressure exhaust fan 6. The mounting plate 9 is fixedly connected to the crossbar 3 by bolts 8. A junction box 7 is installed on the right side of the negative pressure exhaust fan 6. A high-strength power wire 10 is connected to the right side of the junction box 7. A power plug 11 is connected to the end of the high-strength power wire 10. The junction box 7, the high-strength power wire 10, and the power plug 11 are all existing components. The technically universal structure means that the negative pressure exhaust fan 6 can be started to perform air extraction after being plugged in, and the power plug 11 needs to be unplugged to stop the negative pressure exhaust fan 6. Specifically, the plastic bag is placed inside the inner bag housing 12 and the bag's hanging ears are hung on the bag hanging mechanism 13, which is restrained by the anti-detachment groove 14. Then, the power plug 11 is plugged into the socket to obtain power, and the negative pressure exhaust fan 6 starts to extract air. First, the air inside the outer negative pressure housing 1 is extracted, and then the air inside the inner bag housing 12 is extracted through the suction hole 19, creating a negative pressure inside the inner bag housing 12. As a result, the plastic bag is attracted to the inner wall of the inner bag housing 12, thus unfolding the plastic bag and passing through the outer negative pressure housing. 1. Support foot; 2. Crossbar; 3. Negative pressure exhaust port; 4. Sealing ring; 5. Negative pressure exhaust fan; 6. The cooperation between the inner box 12 and the suction hole 19 allows the plastic bag to be opened automatically using air pressure. Through the grip ring 15, the bag-supporting moving bracket 16, the first movable plate 17, the second movable plate 18, the suction hole 19, the central fixed shaft 20, the intermediate wheel 21, and the outer wheel 22, if the packaging bag is not fully opened after being opened by pressure, it can be fully opened manually. This solves the problem that current plastic bag filling machines often have gaps in the middle of the plastic bag during product filling because the plastic bag is not easy to fully open on its own, which can easily cause the product to spill out.

[0020] In Example 2, the inner box 2 of the bag-holding compartment is equipped with a bag-supporting movable bracket 16. A grip ring 15 is fixedly connected to the top of the bag-supporting movable bracket 16, and a central fixed shaft 20 is fixedly connected to the bottom of the bag-supporting movable bracket 16. An intermediate wheel 21 is sleeved on the surface of the central fixed shaft 20, and an outer wheel 22 is sleeved on the outer surface of the intermediate wheel 21. A first movable plate 17 is fixedly connected to the right side of the intermediate wheel 21, and a second movable plate 18 is fixedly connected to the left side of the outer wheel 22. If the bag is not fully unfolded, the grip ring 15 can be held to push the bag-supporting movable bracket 16 and the following structure into the inner box 12 of the bag-holding compartment downwards until the plastic bag is fully unfolded. Then, the bag-supporting movable bracket 16 and the following mechanism can be removed. At this point, the filling process can begin. The central fixed shaft 20, the outer wheel 22, and the intermediate wheel 21 can move relative to each other, but this movement is not a 360-degree rotation. Instead, the intermediate wheel 21 can rotate 45 degrees clockwise on the surface of the central fixed shaft 20, and the outer wheel 22 can rotate 45 degrees counterclockwise on the surface of the intermediate wheel 21. Thus, after the plastic bag is fully opened, even if the first movable plate 17 and the second movable plate 18 are not removed, and the filling process is completed first, when the first movable plate 17 and the second movable plate 18 are removed again, the material pressure will cause the first movable plate 17 and the second movable plate 18 to form an inverted V shape during their upward movement, preventing the material from being carried out of the packaging bag.

[0021] Working principle: Place the plastic bag inside the inner bag housing 12 and hang the bag on the hanging mechanism 13. Use the anti-detachment groove 14 to limit its movement. Then, plug the power plug 11 into the socket to draw power. The negative pressure fan 6 will start to draw air. First, the air inside the external negative pressure housing 1 will be drawn out. Then, the air inside the inner bag housing 12 will be drawn out through the suction hole 19, so that a negative pressure is generated inside the inner bag housing 12. As a result, the plastic bag will be attracted and adhered to the inner wall of the inner bag housing 12, thus unfolding the plastic bag. If it is found that it is not fully unfolded, you can hold the handle 15 and push the bag-supporting moving bracket 16 and the following structure into the inner bag housing 12 and push it down until the plastic bag is fully unfolded. Then, remove the bag-supporting moving bracket 16 and the following mechanism. At this time, the filling work can be carried out.

[0022] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A plastic bag packing machine comprising an external negative pressure tank (1), characterized in that: The inside of the external negative pressure box body (1) is provided with a bag placing inner box body (12), the outer surface of the bag placing inner box body (12) is fixedly connected with the inner wall of the external negative pressure box body (1), the outer surface of the bag placing inner box body (12) is provided with suction holes (19) in communication with the inside of the bag placing inner box body (12), the top of the bag placing inner box body (12) is fixedly connected with a bag hanging mechanism (13), the side of the bag hanging mechanism (13) is provided with anti-dropping grooves (14), the bottom of the external negative pressure box body (1) is fixedly connected with supporting legs (2), the right side of the supporting leg (2) is fixedly connected with a crosspiece (3), the upper surface of the crosspiece (3) is overlapped with a negative pressure exhaust fan (6), the bottom of the external negative pressure box body (1) is provided with a negative pressure air exhaust hole (4) in communication with the inside of the external negative pressure box body (1), the air inlet of the negative pressure exhaust fan (6) is overlapped with the bottom of the external negative pressure box body (1) and the position corresponding to the negative pressure air exhaust hole (4), the side of the negative pressure exhaust fan (6) is fixedly connected with a mounting plate (9), the mounting plate (9) and the crosspiece (3) are fixedly connected through bolts (8), the right side of the negative pressure exhaust fan (6) is provided with a junction box (7), the right side of the junction box (7) is connected with high-grade power conductors (10), the tail end of the high-grade power conductors (10) is connected with a power supply plug (11).

2. A plastic bag packing machine according to claim 1, characterized in that: The suction holes (19) are evenly distributed on the entire outer surface of the bag placing inner box body (12).

3. A plastic bag packing machine according to claim 1, characterized in that: The number of the bag hanging mechanisms (13) is two, and the two bag hanging mechanisms (13) are symmetrically arranged about the central axis of the bag placing inner box body (12).

4. A plastic bag packing machine according to claim 1, characterized in that: The air inlet surface of the negative pressure exhaust fan (6) is fixedly connected with a sealing ring (5), and the upper surface of the sealing ring (5) is overlapped with the bottom of the external negative pressure box body (1).

5. A plastic bag packing machine according to claim 1, characterized in that: The inside of the bag placing inner box body (12) is provided with a bag supporting moving support (16), and the top end of the bag supporting moving support (16) is fixedly connected with a handle ring (15).

6. A plastic bag packing machine according to claim 5, characterized in that: The bottom end of the bag supporting moving support (16) is fixedly connected with a central fixed shaft (20), the surface of the central fixed shaft (20) is sleeved with an intermediate wheel (21), and the outer surface of the intermediate wheel (21) is sleeved with an external wheel (22).

7. A plastic bag packing machine according to claim 6, characterized in that: The right side of the intermediate wheel (21) is fixedly connected with a first movable plate (17), and the left side of the external wheel (22) is fixedly connected with a second movable plate (18).

Images