A valve port sack opening device

Abstract

The utility model discloses a valve port bagging machine bag port pull open device, including the support frame, the connecting frame, the rear end fixed connection of support frame has the support frame, the inboard inner wall fixed connection of support frame has the mounting seat, the inboard of mounting seat is swingly connected with the hydraulic cylinder no. The utility model discloses a valve port bagging machine bag port pull open device, through starting the hydraulic cylinder no.

Description

Technical Field

[0001] This utility model relates to the field of valve bagging machine technology, and in particular to a bag opening device for a valve bagging machine. Background Technology

[0002] Valve bags are a common type of packaging bag and are popular internationally. They are fed from the top or bottom valve and filled using specialized filling equipment. After being filled, they are packed into cubes, resulting in neat and attractive stacks. They are also considered environmentally friendly bags.

[0003] Traditional valve bagging machines have some drawbacks. During continuous operation, due to the action of the high-temperature heat-melting device, some materials may experience abnormal heat-melting. Specifically, the plastic film may soften and stick together at the edge of the bag opening or at the seam due to excessively high local temperature, forming irregular sticky clumps, which will affect the opening of the bag. Utility Model Content

[0004] The main purpose of this utility model is to provide a bag opening device for a valve bagging machine, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A bag opening device for a valve bagging machine includes a support frame and a connecting frame. A support frame is fixedly connected to the rear end of the support frame. A mounting seat is fixedly connected to the inner wall of the support frame. A first hydraulic cylinder is movably connected to the inner side of the mounting seat via a rotating shaft. A control rod is movably mounted on the telescopic end of the first hydraulic cylinder via the rotating shaft. A push plate is fixedly connected to the rear end of the control rod. A rotating shaft is movably connected inside the control rod. A second hydraulic cylinder is fixedly connected to the inner side of the push plate. A contact plate is mounted on the upper telescopic end of the second hydraulic cylinder. A fixed frame is fixedly connected to the front end of the connecting frame. A connecting seat is fixedly connected to the inner wall of the fixed frame. A third hydraulic cylinder is movably connected to the inner side of the connecting seat via a rotating shaft. An adjusting rod is mounted on the telescopic end of the third hydraulic cylinder via the rotating shaft. A control plate is fixedly connected to the rear end of the adjusting rod.

[0007] Preferably, the control lever is internally connected to a movable shaft, and a fourth hydraulic cylinder is fixedly connected to the inner side of the control plate. A corresponding plate is installed on the upper telescopic end of the fourth hydraulic cylinder.

[0008] Preferably, the corresponding plate is located on the rear side of the contact plate, and there is a gap between the corresponding plate and the contact plate.

[0009] Preferably, the connecting frame and the support frame are corresponding to each other, the mounting base is U-shaped, there are three sets of control rods, the rotating shaft extends into the interior of the support frame, and the rotating shaft is movably connected to the support frame.

[0010] Preferably, the contact plate is L-shaped, the connecting seat is U-shaped, and there are three sets of control rods.

[0011] Preferably, the movable shaft extends into the interior of the fixed frame, the movable shaft is movably connected to the fixed frame, and the corresponding plate is L-shaped.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By activating hydraulic cylinders No. 1 and No. 3, the control lever and adjustment lever are pushed to rotate around the rotating shaft and movable shaft, respectively, causing the contact plate and corresponding plate to move closer together. Then, by activating hydraulic cylinders No. 2 and No. 4, the bag is clamped between the contact plate and the corresponding plate. This facilitates the clamping of the bag and pulls the bag downward, thus preventing the bag from sticking together and avoiding any impact on the bag opening. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the bag opening device of the valve bagging machine according to this utility model;

[0015] Figure 2 This is a partial structural diagram of the bag opening device for a valve bagging machine according to the present invention. Figure 1 ;

[0016] Figure 3 This is a partial structural diagram of the bag opening device for a valve bagging machine according to the present invention. Figure 2 ;

[0017] Figure 4 This is a partial structural diagram of the bag opening device for a valve bagging machine according to the present invention. Figure 3 ;

[0018] Figure 5 This is a partial structural diagram of the bag opening device for a valve bagging machine according to the present invention. Figure 4 .

[0019] In the diagram: 1. Support frame; 2. Connecting frame; 3. Support frame; 4. Mounting seat; 5. Hydraulic cylinder No. 1; 6. Control lever; 7. Push plate; 8. Rotating shaft; 9. Hydraulic cylinder No. 2; 10. Contact plate; 11. Fixing frame; 12. Connecting seat; 13. Hydraulic cylinder No. 3; 14. Adjusting lever; 15. Control panel; 16. Hydraulic cylinder No. 4; 17. Corresponding plate; 18. Movable shaft. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figure 1-5 As shown, a bag opening device for a valve bagging machine includes a support frame 1 and a connecting frame 2. A support frame 3 is fixedly connected to the rear end of the support frame 1. A mounting seat 4 is fixedly connected to the inner wall of the support frame 3. A first hydraulic cylinder 5 is movably connected to the inner side of the mounting seat 4 via a rotating shaft. A control rod 6 is movably mounted on the telescopic end of the first hydraulic cylinder 5 via a rotating shaft. A push plate 7 is fixedly connected to the rear end of the control rod 6. A rotating shaft 8 is movably connected inside the control rod 6. A second hydraulic cylinder 9 is fixedly connected to the inner side of the push plate 7. A contact plate 10 is installed on the upper telescopic end of the second hydraulic cylinder 9. A fixed frame 11 is fixedly connected to the front end of the connecting frame 2. A connecting seat 12 is fixedly connected to the inner wall of the fixed frame 11. A third hydraulic cylinder 13 is movably connected to the inner side of the connecting seat 12 via a rotating shaft. An adjusting rod 14 is installed on the telescopic end of the third hydraulic cylinder 13 via a rotating shaft. A control plate 15 is fixedly connected to the rear end of the adjusting rod 14.

[0022] In this embodiment, the control rod 14 is internally connected to a movable shaft 18, and the inner side of the control plate 15 is fixedly connected to a fourth hydraulic cylinder 16. A corresponding plate 17 is installed on the upper telescopic end of the fourth hydraulic cylinder 16. The corresponding plate 17 is located behind the contact plate 10, and there is a gap between the corresponding plate 17 and the contact plate 10. The connecting frame 2 and the support frame 1 are corresponding to each other. The mounting base 4 is U-shaped. There are three sets of control rods 6. The rotating shaft 8 extends into the interior of the support frame 3 and is movably connected to the support frame 3. The contact plate 10 is L-shaped. The connecting base 12 is U-shaped. There are three sets of control rods 14. The movable shaft 18 extends into the interior of the fixed frame 11 and is movably connected to the fixed frame 11. The corresponding plate 17 is L-shaped.

[0023] Specifically, firstly, hydraulic cylinders 5 and 13 are activated, causing them to push control lever 6 and adjusting lever 14 to rotate around rotating shaft 8 and movable shaft 18, respectively. This causes control lever 6 to rotate push plate 7 upward, and adjusting lever 14 to rotate control plate 15 upward, bringing contact plate 10 and corresponding plate 17 closer together. Then, hydraulic cylinders 9 and 16 are activated, causing them to move contact plate 10 and corresponding plate 17 upward, bringing them closer together. The bag is sandwiched between plates 17. By activating hydraulic cylinders 5 and 13, the control lever 6 and adjustment lever 14 are pushed to rotate around the rotating shaft 8 and movable shaft 18, respectively, causing the contact plate 10 and the corresponding plate 17 to move closer together. Then, hydraulic cylinders 9 and 16 are activated, and the bag is sandwiched between the contact plate 10 and the corresponding plate 17. This makes it easier to hold the bag and pull it down, thus preventing the bag from sticking together and affecting the bag opening.

[0024] Working principle:

[0025] In operation, firstly, hydraulic cylinders 5 and 13 are activated, causing them to push control lever 6 and adjustment lever 14 to rotate around rotating shaft 8 and movable shaft 18, respectively. This causes control lever 6 to rotate push plate 7 upward, and adjustment lever 14 to rotate control plate 15 upward, bringing contact plate 10 and corresponding plate 17 closer together. Then, hydraulic cylinders 9 and 16 are activated, causing them to move contact plate 10 and corresponding plate 17 upward, clamping the bag between them. Next, the retraction of hydraulic cylinders 5 and 13 is activated, causing them to pull contact plate 10 and corresponding plate 17 downward, and then the operation is repeated. Hydraulic cylinders 9 (number 2) and 16 (number 4) extend and retract outwards, ensuring that contact plate 10 and corresponding plate 17 always clamp the bag body as they move downwards. This pulls the bag body downwards, preventing it from sticking together and thus avoiding any impact on the bag opening. Activating hydraulic cylinders 5 (number 1) and 13 (number 3) causes them to push control lever 6 and adjustment lever 14 to rotate around rotating shaft 8 and movable shaft 18, respectively, bringing contact plate 10 and corresponding plate 17 closer together. Activating hydraulic cylinders 9 (number 2) and 16 (number 4) further clamps the bag body between contact plate 10 and corresponding plate 17, achieving the purpose of easily clamping the bag body and pulling it downwards, thus preventing it from sticking together and avoiding any impact on the bag opening.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A valve port bag opening device for a bag-on-valve machine, comprising a support frame (1) and a connecting frame (2), characterized in that: The rear end of the support frame (1) is fixedly connected with a support frame (3), the inner side of the inner wall of the support frame (3) is fixedly connected with a mounting seat (4), the inner side of the mounting seat (4) is movably connected with a No. 1 hydraulic cylinder (5) through a rotating shaft, the telescopic end of the No. 1 hydraulic cylinder (5) is movably connected with a control rod (6) through a rotating shaft, the rear end of the control rod (6) is fixedly connected with a push plate (7), the inside of the control rod (6) is movably connected with a rotating shaft (8), the inner side of the push plate (7) is fixedly connected with a No. 2 hydraulic cylinder (9), the upper end of the telescopic end of the No. 2 hydraulic cylinder (9) is movably connected with a contact plate (10), the front end of the connecting frame (2) is fixedly connected with a fixed frame (11), the inner side of the inner wall of the fixed frame (11) is fixedly connected with a connecting seat (12), the inner side of the connecting seat (12) is movably connected with a No. 3 hydraulic cylinder (13) through a rotating shaft, the telescopic end of the No. 3 hydraulic cylinder (13) is movably connected with a control rod (14) through a rotating shaft, the rear end of the control rod (14) is fixedly connected with a control plate (15).

2. A valve sleeve bag machine bag opening device according to claim 1, wherein: The inside of the control plate (15) is movably connected with a movable shaft (18), the inner side of the control plate (15) is fixedly connected with a No. 4 hydraulic cylinder (16), the upper end of the telescopic end of the No. 4 hydraulic cylinder (16) is movably connected with a corresponding plate (17).

3. A valve sleeve bag machine bag opening device according to claim 2, wherein: The corresponding plate (17) is located at the rear side of the contact plate (10), and there is a gap between the corresponding plate (17) and the contact plate (10).

4. A valve skirting bag machine bag opening unzipping device according to claim 2, characterized in that: The connecting frame (2) corresponds to the support frame (1), the shape of the mounting seat (4) is U-shaped, the number of the control rod (6) is three, the rotating shaft (8) extends to the inside of the support frame (3), and the rotating shaft (8) is movably connected with the support frame (3).

5. A valve sleeve bag machine bag opening device according to claim 2, wherein: The shape of the contact plate (10) is L-shaped, the shape of the connecting seat (12) is U-shaped, and the number of the control rod (14) is three.

6. A bag opening unsealing device for a valve port bagging machine according to claim 2, wherein: The movable shaft (18) extends to the inside of the fixed frame (11), the movable shaft (18) is movably connected with the fixed frame (11), and the shape of the corresponding plate (17) is L-shaped.

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