Packaging bag sealing mechanism for food packaging

Abstract

The utility model relates to the technical field of food processing, and discloses a packaging bag sealing mechanism for food packaging, which comprises a mounting rack, limiting pipes are uniformly and fixedly mounted on the right side of the inner wall of the mounting rack, an automatic centering sealing mechanism is arranged, a driving motor drives a first rotating column to rotate, and the first rotating column drives a cam to rotate; rotation of the cam pushes the rolling wheel to do reciprocating motion, the rolling wheel drives the first connecting rod and the second connecting rod to do corresponding reciprocating swing through the rotary connecting piece, and the first connecting rod and the second connecting rod drive the first limiting guide sliding rod and the second limiting guide sliding rod to do reciprocating sliding in the limiting pipe through the first connecting plate and the second connecting plate correspondingly. The first limiting guide sliding rod and the second limiting guide sliding rod drive the first sealing block and the second sealing block to move in the opposite directions correspondingly, so that the centering sealing function of a packaging bag is achieved, the equipment cost is reduced, meanwhile, the sealing effect is improved, and the food packaging requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of food processing technology, and in particular to a sealing mechanism for food packaging bags. Background Technology

[0002] Food processing refers to the processing of grains, feed, vegetable oils and sugars, slaughtering and meat processing, aquatic products, and other foods such as vegetables, fruits, and nuts, directly using agricultural, forestry, animal husbandry, and fishery products as raw materials. It also includes the processing of potatoes, dehydrated vegetables, and canned vegetables. It is a type of agricultural product processing industry in a broad sense. During food processing, sealing mechanisms are needed to seal packaging bags.

[0003] Existing packaging bag sealing mechanisms generally do not have the function of centering and sealing, resulting in poor sealing effect. Some devices with centering and sealing functions need to use servo motors to achieve forward and reverse rotation, thereby realizing the centering and sealing function, which increases the equipment cost and cannot meet the needs of food packaging.

[0004] Therefore, we propose a sealing mechanism for food packaging bags. Utility Model Content

[0005] The present invention aims to solve the technical problems existing in the prior art and provide a sealing mechanism for food packaging bags.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sealing mechanism for food packaging bags, comprising a mounting frame, wherein limit tubes are uniformly fixedly installed on the right side of the inner wall of the mounting frame, and an automatic centering sealing mechanism is provided on the inner wall of the mounting frame, the automatic centering sealing mechanism including a drive motor, wherein the bottom of the drive motor is fixedly connected to the bottom of the inner wall of the mounting frame, a first rotating column is fixedly installed at the output end of the drive motor, and the top of the first rotating column is movably connected to the top of the inner wall of the mounting frame, and a cam is fixedly installed at the middle of the outer wall of the first rotating column.

[0007] Preferably, a roller is movably mounted on the outer wall of the cam, and a rotating connector is movably mounted on the inner wall of the roller via a rotating shaft.

[0008] Preferably, a second rotating column is movably mounted on the inner wall of the rotating connector, and the bottom of the second rotating column is fixedly connected to the bottom of the inner wall of the mounting frame, while the top of the second rotating column movably passes through the top of the mounting frame.

[0009] Preferably, a reset torsion spring is provided on the upper end of the outer wall of the second rotating column, and a fixing nut is threadedly connected to the top of the reset torsion spring on the outer wall of the second rotating column.

[0010] Preferably, a first connecting rod is movably mounted on the front end of the inner wall of the rotating connector via a pivot, and a first connecting plate is movably mounted on the right side of the outer wall of the first connecting rod via a pivot.

[0011] Preferably, a first limiting guide slide rod is fixedly installed on the right side wall of the first connecting plate, and the outer wall of the first limiting guide slide rod is movably connected to the inner wall of the limiting tube, and the right side wall of the first limiting guide slide rod movably passes through the right side wall of the mounting frame.

[0012] Preferably, a first sealing block is fixedly installed on the right side wall of the first limiting guide slide rod, a second connecting rod is movably installed on the rear end of the inner wall of the rotating connector via a rotating shaft, and a second connecting plate is movably installed on the left side of the outer wall of the second connecting rod via a rotating shaft.

[0013] Preferably, a second limiting guide slide rod is fixedly installed on the right side wall of the second connecting plate, and the outer wall of the second limiting guide slide rod is movably connected to the inner wall of the limiting tube, and the right side wall of the second limiting guide slide rod movably passes through the right side wall of the mounting frame.

[0014] Preferably, a mounting plate is fixedly installed on the right side wall of the second limiting guide slide rod, and a second sealing block is fixedly installed at the middle of the left side wall of the mounting plate, with the left side wall of the second sealing block in contact with the right side wall of the first sealing block.

[0015] This utility model provides a sealing mechanism for food packaging bags. It has the following beneficial effects:

[0016] 1. This food packaging bag sealing mechanism incorporates an automatic centering and sealing mechanism. A drive motor rotates a first rotating column, which in turn rotates a cam. The cam's rotation drives a roller in reciprocating motion. The roller, through a rotating connector, drives a first connecting rod and a second connecting rod to reciprocate. The first and second connecting rods, respectively, through a first and a second connecting plate, drive a first and a second limiting guide slide rod to reciprocate within a limiting tube. The first and second limiting guide slide rods, in turn, drive a first sealing block and a second sealing block to move in opposite directions, thus achieving the centering and sealing function of the packaging bag. The entire centering and sealing process does not require a servo motor, reducing equipment costs while improving sealing efficiency and meeting the needs of food packaging.

[0017] 2. The sealing mechanism for food packaging bags is equipped with a reset torsion spring. After the automatic centering sealing mechanism completes the sealing of the packaging bag, the reset torsion spring can drive the second rotating column and the connected components to reset due to the elastic potential energy of the reset torsion spring, thus preparing for the next sealing operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0019] Figure 2 This is a front structural diagram of the automatic centering and sealing mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the back structure of the automatic centering and sealing mechanism of this utility model.

[0021] Legend: 10. Mounting bracket; 11. Limiting tube; 12. Automatic centering and sealing mechanism; 13. Drive motor; 14. First rotating column; 15. Cam; 16. Roller; 17. Rotary connector; 18. Second rotating column; 19. Return torsion spring; 20. Fixing nut; 21. First connecting rod; 22. First connecting plate; 23. First limiting guide slide rod; 24. First sealing block; 25. Second connecting rod; 26. Second connecting plate; 27. Second limiting guide slide rod; 28. Mounting plate; 29. ​​Second sealing block. Detailed Implementation

[0022] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0023] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "inner," "outer," and "side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0027] 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.

[0028] Example 1: A sealing mechanism for food packaging bags, such as... Figure 1 As shown, the device includes a mounting frame 10. Limiting tubes 11 are uniformly fixedly installed on the right side of the inner wall of the mounting frame 10. An automatic centering and sealing mechanism 12 is provided on the inner wall of the mounting frame 10. Through the automatic centering and sealing mechanism 12, the first rotating column 14 is driven to rotate by the drive motor 13. The first rotating column 14 drives the cam 15 to rotate. The rotation of the cam 15 pushes the roller 16 to reciprocate. The roller 16 drives the first connecting rod 21 and the second connecting rod 25 to reciprocate accordingly through the rotating connector 17. The first connecting rod 21 and the second connecting rod 25 drive the first limiting guide slide rod 23 and the second limiting guide slide rod 27 to reciprocate within the limiting tube 11 through the first connecting plate 22 and the second connecting plate 26, respectively. The first limiting guide slide rod 23 and the second limiting guide slide rod 27 drive the first sealing block 24 and the second sealing block 29 to move in opposite directions, thereby realizing the centering and sealing function of the packaging bag. The entire centering and sealing process does not require a servo motor, which reduces equipment costs and improves the sealing effect, meeting the needs of food packaging.

[0029] Example 2: Based on Example 1, as follows Figures 2-3 As shown, the automatic centering and sealing mechanism 12 includes a drive motor 13, the bottom of which is fixedly connected to the bottom of the inner wall of the mounting frame 10. A first rotating column 14 is fixedly mounted on the output end of the drive motor 13, and the top of the first rotating column 14 is movably connected to the top of the inner wall of the mounting frame 10. A cam 15 is fixedly mounted on the middle of the outer wall of the first rotating column 14. A roller 16 is movably mounted on the outer wall of the cam 15. A rotating connector 17 is movably mounted on the inner wall of the roller 16 via a rotating shaft. A second rotating column 18 is movably mounted on the inner wall of the rotating connector 17. The bottom of the column 18 is fixedly connected to the bottom of the inner wall of the mounting frame 10. The top of the second rotating column 18 moves through the top of the mounting frame 10. A reset torsion spring 19 is provided on the upper end of the outer wall of the second rotating column 18. A fixing nut 20 is threadedly connected to the top of the reset torsion spring 19 on the outer wall of the second rotating column 18. By setting the reset torsion spring 19, after the automatic centering and sealing mechanism 12 completes the sealing of the packaging bag, the reset torsion spring 19 can drive the second rotating column 18 and the connected components to reset due to the elastic potential energy of the reset torsion spring 19, thus preparing for the next sealing operation.

[0030] Example 3: Based on Examples 1 and 2, as follows... Figures 2-3 As shown, a first connecting rod 21 is movably mounted on the front end of the inner wall of the rotating connector 17 via a pivot. A first connecting plate 22 is movably mounted on the right side of the outer wall of the first connecting rod 21 via a pivot. A first limiting guide slide rod 23 is fixedly mounted on the right side wall of the first connecting plate 22, and the outer wall of the first limiting guide slide rod 23 is movably connected to the inner wall of the limiting tube 11. The right side wall of the first limiting guide slide rod 23 movably penetrates the right side wall of the mounting bracket 10. A first sealing block 24 is fixedly mounted on the right side wall of the first limiting guide slide rod 23. A second connecting rod is movably mounted on the rear end of the inner wall of the rotating connector 17 via a pivot. The second connecting rod 25 has a second connecting plate 26 movably mounted on the left side of its outer wall via a pivot. The second limiting guide slide rod 27 is fixedly mounted on the right side wall of the second connecting plate 26, and the outer wall of the second limiting guide slide rod 27 is movably connected to the inner wall of the limiting tube 11. The right side wall of the second limiting guide slide rod 27 movably passes through the right side wall of the mounting frame 10. The right side wall of the second limiting guide slide rod 27 is fixedly mounted on the mounting plate 28, and the middle of the left side wall of the mounting plate 28 is fixedly mounted on the second sealing block 29. The left side wall of the second sealing block 29 is in movable contact with the right side wall of the first sealing block 24.

[0031] The working principle of this utility model:

[0032] In use, first place the packaging bag between the first sealing block 24 and the second sealing block 29, then start the drive motor 13. The output end of the drive motor 13 drives the first rotating column 14 to rotate. The rotation of the first rotating column 14 drives the cam 15 to rotate. The outer wall of the cam 15 contacts the outer wall of the roller 16. When the cam 15 rotates to the point where it contacts the roller 16, the roller 16 pushes the rotating connecting piece 17 to move. The movement of the rotating connecting piece 17 drives the second rotating column 18 to move. The movement of the second rotating column 18 drives the first connecting rod 21 and the second connecting rod 25 to move. The movement of the first connecting rod 21 drives the first connecting plate 22 to move. The movement of the first limiting guide slide 23 causes the first sealing block 24 to seal one side of the packaging bag. The movement of the second connecting rod 25 causes the second connecting plate 26 to move, which in turn causes the second limiting guide slide 27 to move. The movement of the second limiting guide slide 27 causes the second sealing block 29 to seal the other side of the packaging bag. When the cam 15 rotates to the point where it does not contact the roller 16, the first sealing block 24 and the second sealing block 29 are automatically reset by the return torsion spring 19, achieving automatic centering and sealing, improving sealing efficiency, and eliminating the need for a servo motor, thus reducing equipment costs.

[0033] 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 packaging bag sealing mechanism for food packaging, comprising a mounting frame (10), characterized in that: The inner wall right side of the mounting frame (10) is uniformly fixedly installed with a limiting pipe (11), the inner wall of the mounting frame (10) is provided with an automatic centering sealing mechanism (12), the automatic centering sealing mechanism (12) comprises a driving motor (13), the bottom of the driving motor (13) is fixedly connected with the inner wall bottom of the mounting frame (10), the output end of the driving motor (13) is fixedly installed with a first rotating column (14), and the top of the first rotating column (14) is movably connected with the inner wall top of the mounting frame (10), and the outer wall middle end of the first rotating column (14) is fixedly installed with a cam (15).

2. The packaging bag sealing mechanism for food packaging according to claim 1, characterized by: The outer wall of the cam (15) is movably installed with a roller (16), and the inner wall of the roller (16) is movably installed with a rotating connecting piece (17) through a rotating shaft.

3. The packaging bag sealing mechanism for food packaging according to claim 2, characterized by: The inner wall of the rotating connecting piece (17) is movably installed with a second rotating column (18), and the bottom of the second rotating column (18) is fixedly connected with the inner wall bottom of the mounting frame (10), and the top of the second rotating column (18) movably penetrates the top of the mounting frame (10).

4. The packaging bag sealing mechanism for food packaging according to claim 3, characterized by: The outer wall upper end of the second rotating column (18) is provided with a reset torsional spring (19), and the outer wall of the second rotating column (18) is threadedly connected with a fixed nut (20) at the top of the reset torsional spring (19).

5. The packaging bag sealing mechanism for food packaging according to claim 2, characterized by: The inner wall front end of the rotating connecting piece (17) is movably installed with a first connecting rod (21) through a rotating shaft, and the outer wall right side of the first connecting rod (21) is movably installed with a first connecting plate (22) through a rotating shaft.

6. The packaging bag sealing mechanism for food packaging according to claim 5, characterized by: The right side wall surface of the first connecting plate (22) is fixedly installed with a first limiting guide sliding rod (23), the outer wall of the first limiting guide sliding rod (23) is movably connected with the inner wall of the limiting pipe (11), and the right side wall surface of the first limiting guide sliding rod (23) movably penetrates the right side wall surface of the mounting frame (10).

7. The packaging bag sealing mechanism for food packaging according to claim 6, characterized by: The right side wall surface of the first limiting guide sliding rod (23) is fixedly installed with a first sealing block (24), the inner wall rear end of the rotating connecting piece (17) is movably installed with a second connecting rod (25) through a rotating shaft, and the outer wall left side of the second connecting rod (25) is movably installed with a second connecting plate (26) through a rotating shaft.

8. The packaging bag sealing mechanism for food packaging according to claim 7, characterized by: The right side wall surface of the second connecting plate (26) is fixedly installed with a second limiting guide sliding rod (27), the outer wall of the second limiting guide sliding rod (27) is movably connected with the inner wall of the limiting pipe (11), and the right side wall surface of the second limiting guide sliding rod (27) movably penetrates the right side wall surface of the mounting frame (10).

9. The packaging bag sealing mechanism for food packaging according to claim 8, characterized by: The right side wall surface of the second limiting guide sliding rod (27) is fixedly installed with a mounting plate (28), the left side wall surface middle end of the mounting plate (28) is fixedly installed with a second sealing block (29), and the left side wall surface of the second sealing block (29) movably contacts with the right side wall surface of the first sealing block (24).

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