A sealing mechanism of a filling and sealing machine

Abstract

This utility model relates to the field of filling and sealing machine technology, specifically to a sealing mechanism for a filling and sealing machine, comprising a housing, a filling structure at the right end of the housing, and a sealing structure at the left end of the housing. The filling structure includes a first slide rail, a fixed block, a sliding plate, a first cylinder, a second slide rail, a sliding block, a connecting plate, a push plate, a second cylinder, a support block, a fixed column, a filling pipe, and a chute. The sealing structure includes a pressure block, a rotating plate, a rotating block, a bracket, a push-pull plate, a third cylinder, a push-pull block, a push-pull groove, a push wheel, a fixed frame, a fourth cylinder, a fifth cylinder, a pressure plate, and a sealer. By adopting the sliding cooperation of the slide rail, the original sliding method is replaced, resulting in a smaller contact area and less sliding resistance, making the structure slide more smoothly. The pressure plate is driven up and down by the cylinder, which provides greater pressure and better holding effect compared to the original spring pressing method, making leakage less likely.

Description

Technical Field

[0001] This utility model relates to the field of filling and sealing machine technology, specifically to a sealing mechanism for a filling and sealing machine. Background Technology

[0002] As is well known, a filling and sealing machine is a machine that can fill and seal plastic bags containing liquid food, medicine and other items. Due to its high degree of automation, high efficiency and clean production process, it is widely used in food filling companies.

[0003] However, in the use of current filling and sealing machines, it has been found that the sealing mechanism of the current filling tube has high sliding resistance and slow movement speed when it moves. Sometimes, abnormal vibration may even occur due to friction. Moreover, in the sealing mechanism, the pressure plate moves downward by the action of a spring. The spring force is limited, and the clamping force is small. Sometimes, leakage may occur during sealing due to poor clamping effect. Furthermore, its structure is too compact and complex, making maintenance difficult. For all these reasons, the sealing mechanism of the current filling and sealing machine still has room for improvement. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a sealing mechanism for a filling and sealing machine, which features smoother overall operation, stronger clamping force of the pressure plate, simpler overall structure, and easier maintenance.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a sealing mechanism for a filling and sealing machine, comprising a housing, a filling structure at the right end of the housing, and a sealing structure at the left end of the housing. The filling structure includes a first slide rail, a fixing block and a sliding plate on the first slide rail, the fixing block being fixed to the first slide rail, the sliding plate being angled and slidably connected to the first slide rail, a first cylinder connecting the sliding plate and the fixing block, a second slide rail on the sliding plate, a sliding block slidably connected to the second slide rail, a connecting plate on the sliding block, a push plate connected to the right end of the connecting plate, a second cylinder connected to the push plate, and the other end of the second cylinder being fixed to the sliding plate by a support block, a fixing post at the top of the connecting plate, a filling pipe installed on the fixing post, a groove on the housing, the filling pipe passing through the groove and extending to the left.

[0008] The sealing structure includes a pressure block, which is mounted on a rotating plate. The rotating plate is fixed to the pressure block and is rotatably connected to the housing. A bracket is connected to the rotating plate, and a push-pull plate is provided at the bottom of the rotating plate. A third cylinder is provided at the right end of the housing. The telescopic rod of the third cylinder passes through the housing and is connected to a push-pull block. A push-pull groove is provided inside the push-pull block, and a push wheel is rotatably connected to it. The push-pull plate passes through the push-pull groove. A fixing frame is provided on the housing, and a fourth cylinder and a fifth cylinder are provided on the fixing frame, which are respectively connected to a pressure plate and a sealing device.

[0009] Preferably, the housing is provided with a sliding shell, the sliding shell is disposed at the sliding groove, and the infusion tube passes through the sliding shell, and two folding baffles are connected between the infusion tube and the sliding shell.

[0010] Preferably, the top of the fixed column is provided with an adjustable structure, the adjustable structure including a slot, the slot being provided on the top of the fixed column, and the top of the fixed column being fastened by bolts.

[0011] Furthermore, the left end of the infusion tube is pointed, and the right end of the infusion tube is provided with several interfaces.

[0012] Furthermore, the bracket and the rotating plate are arranged at an angle.

[0013] Preferably, the bracket includes several support rods and a support plate, with both sides of the support plate arranged in an arc shape facing upwards.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention provides a sealing mechanism for a filling and sealing machine, which has the following beneficial effects:

[0016] The sealing mechanism of this filling and sealing machine adopts a sliding rail mechanism instead of the original sliding method. This results in a smaller contact area and less sliding resistance, making the structure slide more smoothly. The cylinder drives the pressure plate to press up and down, which provides greater pressure and better holding effect compared to the original spring pressing method, making it less prone to leakage. By redesigning the original sealing mechanism, the original complex and compact structure has been simplified and is easier to maintain, achieving better results than before. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a partial right-side view of the structure of this utility model;

[0019] Figure 3 This utility model Figure 2 A partial top view of the connecting plate shown in the diagram;

[0020] Figure 4 This is a partially enlarged schematic diagram of the infusion tube of this utility model;

[0021] Figure 5 This is a partial top view of the bracket of this utility model.

[0022] In the diagram: 1. First slide rail; 2. Fixed block; 3. Slide plate; 4. First cylinder; 5. Second slide rail; 6. Sliding block; 7. Connecting plate; 8. Push plate; 9. Second cylinder; 10. Support block; 11. Fixed column; 12. Injection pipe; 13. Slide groove; 14. Pressure block; 15. Rotating plate; 16. Rotating block; 17. Bracket; 18. Push-pull plate; 19. Third cylinder; 20. Push-pull block; 21. Push-pull groove; 22. Push wheel; 23. Fixed frame; 24. Fourth cylinder; 25. Fifth cylinder; 26. Pressure plate; 27. Sealer; 28. Sliding shell; 29. ​​Folding baffle; 30. Interface; 31. Support rod; 32. Support plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 The present invention relates to a packaging mechanism for a filling and sealing machine, comprising a housing. Since this solution is only a part of the filling and sealing machine, namely the packaging mechanism, only the housing of the packaging mechanism is shown in the attached drawings. The right end of the housing is provided with a filling structure, and the left end of the housing is provided with a sealing structure.

[0025] The filling structure includes a first slide rail 1, on which a fixing block 2 and a sliding plate 3 are mounted. The fixing block 2 is fixed to the first slide rail 1, and the sliding plate 3 is angled and slidably connected to the first slide rail 1. A first cylinder 4 connects the sliding plate 3 and the fixing block 2. A second slide rail 5 is mounted on the sliding plate 3. The first slide rail 1 and the second slide rail 5 are perpendicular to each other. A sliding block 6 is slidably connected to the second slide rail 5. A connecting plate 7 is mounted on the sliding block 6. A push plate 8 is connected to the right end of the connecting plate 7. A second cylinder 9 is connected to the push plate 8, and the other end of the second cylinder 9 is fixed to the sliding plate 3 by a support block 10. A fixing post 11 is mounted at the top of the connecting plate 7. A filling pipe 12 is mounted on the fixing post 11. The left end of the filling pipe 12 is pointed, and the right end of the filling pipe 12 has several ports 30, the tips of which are used to insert into the plastic bag material. The liquid is fed into the plastic bag through the filling pipe 12. The liquid enters the filling pipe 12 through the feeding pipe and then fills the plastic bag through the filling pipe 12. The housing is provided with a groove 13. The filling pipe 12 passes through the groove 13 and extends to the left. The housing is provided with a sliding shell 28. The sliding shell 28 is located at the groove 13 and the filling pipe 12 passes through the sliding shell 28. Two folding baffles 29 are connected between the filling pipe 12 and the sliding shell 28. The folding baffles 29 are a type of sheet that can be folded and unfolded in the prior art. They can play a role in shielding. The top of the fixing column 11 is provided with an adjustable structure. The adjustable structure includes a slot. The slot is located on the top of the fixing column 11 and the top of the fixing column 11 is fastened by bolts. The top of the fixing column 11 is clamped by bolts, thereby clamping and fixing the filling pipe 12.

[0026] The sealing structure includes a pressure block 14, which is a metal block. The pressure block 14 is mounted on a rotating plate 15, which is fixed to the rotating block 16. The rotating block is rotatably connected to the housing. A bracket 17 is connected to the rotating plate 15 to support the packaging bag. The bracket 17 and the rotating plate 15 are inclined to better support the plastic bag without affecting the filling process. The bracket 17 includes several support rods 31 and a support plate 32. The two sides of the support plate 32 are arc-shaped and upward-facing to more stably support the plastic bag and prevent it from falling off. A push-pull plate 18 is provided at the bottom of the rotating plate 15, and a third cylinder 19 is provided at the right end of the housing. The telescopic rod of the third cylinder 19 passes through the housing and is connected to the push-pull block 20. The push-pull block 20 is provided with a push-pull groove 21 and is rotatably connected to a push wheel 22. The push-pull plate 18 passes through the push-pull groove 21. A fixing frame 23 is provided on the housing. The fixing frame 23 is provided with a fourth cylinder 24 and a fifth cylinder 25, which are respectively connected to a pressure plate 26 and a sealing device 27. The fourth cylinder 24 and the fifth cylinder 25 can drive the pressure plate 26 and the sealing device 27 to move up and down respectively. The pressure plate 26 is used to press down the plastic bag. The sealing device 27 is a device that can seal the plastic bag by heating. It can use a suitable sealing device available today.

[0027] In this embodiment, only the innovative part of this utility model is described. The content of other mechanisms of the filling and sealing machine is not described in detail, such as the conveying mechanism, the sealing nozzle mechanism, the automatic bag suction and inserting nozzle mechanism, etc., which can be referred to the structural content in the prior art.

[0028] In summary, the sealing mechanism of this filling and sealing machine, during use, is controlled by the original controller to first supply air to the second cylinder 9, causing it to extend and thus drive the filling tube 12 into the packaging bag. Then, air is supplied to the first cylinder 4, causing it to extend and thus move the filling tube 12 forward. Next, air is supplied to the third cylinder 19, causing it to extend and thus drive the push-pull block 20 to move to the left, pushing the push-pull plate 18 and causing the rotating plate 15 to rotate upward, thereby lifting the plastic bag with the bracket 17. Finally, air is supplied to the fourth cylinder 24, causing it to extend and press the pressure plate 26 onto the plastic bag. The bag is filled by controlling the filling tube 12. After filling, the second cylinder 9 is shortened, causing the filling tube 12 to move to the right and detach from the plastic bag. Then, air is supplied to the fifth cylinder 25, which extends, causing the sealer 27 to move downward and heat and seal the plastic bag. Then, the third cylinder 19, the fourth cylinder 24, and the fifth cylinder 25 are shortened. When the third cylinder 19 shortens, it drives the push-pull plate 18 to move to the right, causing the rotating plate 15 to rotate downward. Under the action of gravity, the plastic bag falls naturally, thus completing one filling and sealing process, and this process is repeated.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing mechanism for a filling and sealing machine, comprising a housing, characterized in that: The right end of the housing is provided with an injection structure, and the left end of the housing is provided with a sealing structure. The injection structure includes a first slide rail (1), on which a fixing block (2) and a sliding plate (3) are provided. The fixing block (2) is fixed to the first slide rail (1), and the sliding plate (3) is shaped like an angle plate and is slidably connected to the first slide rail (1). A first cylinder (4) is connected between the sliding plate (3) and the fixing block (2). A second slide rail (5) is provided on the sliding plate (3), and a first cylinder (4) is slidably connected to the second slide rail (5). There is a sliding block (6), a connecting plate (7) is provided on the sliding block (6), a push plate (8) is connected to the right end of the connecting plate (7), a second cylinder (9) is connected to the push plate (8), and the other end of the second cylinder (9) is fixed to the slide plate (3) by a support block (10). A fixing column (11) is provided at the top of the connecting plate (7), an injection pipe (12) is installed on the fixing column (11), a sliding groove (13) is provided on the housing, and the injection pipe (12) passes through the sliding groove (13) and extends to the left. The sealing structure includes a pressure block (14), which is mounted on a rotating plate (15). The rotating plate (15) is fixed on the rotating block (16). The rotating block is rotatably connected to the housing. A bracket (17) is connected to the rotating plate (15). A push-pull plate (18) is provided at the bottom of the rotating plate (15). A third cylinder (19) is provided at the right end of the housing. The telescopic rod of the third cylinder (19) passes through the housing and is connected to a push-pull block (20). A push-pull groove (21) is provided in the push-pull block (20), and a push wheel (22) is rotatably connected to it. The push-pull plate (18) passes through the push-pull groove (21). A fixing frame (23) is provided on the housing. A fourth cylinder (24) and a fifth cylinder (25) are provided on the fixing frame (23), and a pressure plate (26) and a sealer (27) are connected to them respectively.

2. The sealing mechanism of a filling and sealing machine according to claim 1, characterized in that: The housing is provided with a sliding shell (28), which is located at the groove (13), and the injection tube (12) passes through the sliding shell (28). Two folding baffles (29) are connected between the injection tube (12) and the sliding shell (28).

3. The sealing mechanism of a filling and sealing machine according to claim 1, characterized in that: The top of the fixed column (11) is provided with an adjustable structure, the adjustable structure including a slot, the slot being provided on the top of the fixed column (11), and the top of the fixed column (11) being fastened by bolts.

4. The sealing mechanism of a filling and sealing machine according to claim 1, characterized in that: The left end of the infusion tube (12) is pointed, and the right end of the infusion tube (12) is provided with several ports (30).

5. The sealing mechanism of a filling and sealing machine according to claim 1, characterized in that: The bracket (17) and the rotating plate (15) are inclined together.

6. The sealing mechanism of a filling and sealing machine according to claim 1, characterized in that: The bracket (17) includes several support rods (31) and a support plate (32), with the two sides of the support plate (32) arranged in an arc shape facing upwards.

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