Corner inserting mechanism for closing square opening of organ bag

Abstract

The utility model relates to the technical field of packaging machines, in particular to an organ bag square opening closing corner inserting mechanism which comprises a bag opening closing assembly and two corner inserting assemblies. The corner inserting assembly comprises a mounting plate and a fixing block fixed to the mounting plate, a pushing piece is mounted at the upper end of the fixing block, and a corner inserting plate is fixed to the moving end of the pushing piece; when the bag opening and closing assembly closes the organ bag, the two corner inserting plates are inserted into the folds on the two sides of the organ bag for shaping, the folds on the two sides of the organ bag are jacked in through the two pin inserting assemblies for bag inserting and shaping, the structure is simple and effective, and the shaping effect is good. The whole corner inserting process is directly completed at the closing moment of the square opening of the organ bag, wrinkles generated at the sealing position when the square opening of the organ bag is closed are effectively prevented, and the problems of poor appearance and poor sealing quality are solved.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, and in particular to a gusseted bag square opening closure corner insertion mechanism. Background Technology

[0002] In the packaging industry, gusseted bags and flat bags, due to their unique structural design, where the two side edges are folded inwards, effectively reduce the space occupied by the packaging, thereby saving costs during storage and transportation. However, existing gusseted bag and flat bag packaging machines have certain technical problems in the processing.

[0003] Specifically, current gusseted bag packaging machines lack an effective corner insert mechanism, which makes it easy for wrinkles to appear at the seal when the square opening of the gusseted bag is closed. These wrinkles not only affect the appearance of the seal, but more importantly, they may lead to a decrease in the quality of heat sealing, thereby affecting the overall sealing and durability of the packaging.

[0004] Based on this, in order to optimize the stability of the gusseted bag's square opening closure, we propose a gusseted bag square opening closure corner insertion mechanism. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the lack of an effective corner-insertion mechanism, which leads to wrinkles at the sealing point when closing the square opening of a gusseted bag. Therefore, this invention proposes a corner-insertion mechanism for closing the square opening of a gusseted bag.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a gusseted bag square opening closure corner insertion mechanism, including:

[0008] Opening and closing components and two corner fitting components;

[0009] The corner fitting assembly includes a mounting plate and a fixing block fixed on the mounting plate. A pusher is installed on the upper end of the fixing block, and a corner fitting plate is fixed on the moving end of the pusher.

[0010] When the opening and closing assembly closes the gusseted bag, the two corner plates are inserted into the creases on both sides of the gusseted bag to reshape it.

[0011] Furthermore, a guide rod is inserted into the guide hole of the fixing block, and the guide rod is slidably connected to the fixing block through a linear bearing;

[0012] The upper end of the guide rod is fixedly connected to the corner plate.

[0013] Furthermore, a limit block is fixedly installed at the bottom end of the guide rod, and a protective pad is also installed on the end face of the limit block. The corner plate has an L-shaped structure.

[0014] Furthermore, two inclined grooves are formed on the end face of the mounting plate, and the fixing block is connected to the inclined grooves by fasteners.

[0015] Furthermore, the bag opening and closing assembly includes:

[0016] Two bag-opening cylinders are arranged opposite each other. A mounting frame is fixedly installed on the telescopic end of the bag-opening cylinder. Several lower suction cups are distributed on the end face of the mounting frame. The mounting plate is fixed to the bottom of the film clamping seat plate.

[0017] Furthermore, it also includes a closing cylinder fixed on the mounting bracket, and an upper suction cup is fixedly mounted on the shaft end of the closing cylinder via a connecting plate.

[0018] The present invention proposes a corner-insertion mechanism for closing the square opening of an accordion bag. The advantages of this invention are as follows: the present invention uses two insert components to push in the folds on both sides of the accordion bag for insertion and shaping. The structure is simple and effective. The entire corner-insertion process is completed at the moment the square opening of the accordion bag closes. Moreover, it effectively prevents wrinkles at the sealing point when the square opening of the accordion bag is closed, and prevents problems such as poor appearance and poor sealing quality. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is a schematic diagram of the corner fitting assembly structure of this utility model;

[0021] Figure 3 for Figure 2 A magnified structural diagram of area A;

[0022] Figure 4 This is a diagram showing the internal state of the gusseted bag of this utility model in the opening and closing assembly;

[0023] Figure 5 This is a diagram showing the square opening of the gusseted bag of this utility model.

[0024] In the diagram: 1. Bag opening and closing assembly; 11. Bag opening cylinder; 12. Mounting bracket; 13. Lower suction cup; 14. Closing cylinder; 15. Connecting plate; 16. Upper suction cup; 2. Corner insertion assembly; 21. Mounting plate; 211. Inclined groove; 22. Fixing block; 23. Pushing component; 24. Corner insertion plate; 25. Guide rod; 26. Linear bearing; 27. Limiting block; 28. Protective pad; 3. Bellows bag; 4. Film clamping seat plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figure 1-5 As an embodiment of this utility model, a corner-closing mechanism for a gusseted bag is disclosed. Specifically, the corner-closing mechanism includes a bag-closing component 1 and two corner-closing components 2. The two corner-closing components 2 are symmetrically designed to perform corner-closing operations from both sides of the gusseted bag.

[0027] The corner fitting assembly 2 includes a mounting plate 21 and a fixing block 22 fixed on the mounting plate 21. A pusher 23 is installed on the upper end of the fixing block 22. In this preferred embodiment, the pusher 23 is set as a cylinder. A corner fitting plate 24 is fixed on the moving end of the pusher 23.

[0028] In a preferred embodiment, the mounting plate 21 of the present invention has two inclined grooves 211 on its end face. The fixing block 22 is connected to the inclined grooves 211 by fasteners. Specifically, the fasteners can be bolts. The bolt's post end is placed in the inclined groove 211 and threadedly connected to the fixing block 22. The purpose of this design is to allow the position of the entire fixing block 22 to be adjusted during assembly so as to keep the heights of the two corner components 2 flush.

[0029] When the opening and closing assembly 1 closes the gusseted bag, the two corner plates 24 are inserted into the creases on both sides of the gusseted bag to reshape it.

[0030] In some embodiments, a guide rod 25 is also inserted into the guide hole of the fixing block 22. The guide rod 25 is slidably connected to the fixing block 22 via a linear bearing 26, wherein the upper end of the guide rod 25 is fixedly connected to the corner plate 24.

[0031] In other words, in this embodiment, considering the driving stability of the corner plate 24, a guide rod 25 is added for the single-axis cylinder. This avoids the problem of the corner plate 24 rotating during movement. Specifically, during the corner insertion operation, the two pushers 23 on both sides drive the corner plate 24 to move outward and push it out until it fixes the fold of the accordion bag inward to complete the folding and forming of the accordion bag. Of course, for dual-axis or multi-axis cylinders, the guide rod 25 and linear bearing 26 are not required.

[0032] Furthermore, in this embodiment, a limiting block 27 is fixedly installed at the bottom end of the guide rod 25, and a protective pad 28 is also installed on the end face of the limiting block 27. Specifically, in this embodiment, the limiting block 27 is used to control the cylinder stroke. In addition, the protective pad 28 is set as a rubber pad, which is used to buffer and reduce noise.

[0033] Optionally, in this embodiment, the corner plate 24 has an L-shaped structure and a flat cut at its free end. The flat cut is parallel to the side of the accordion bag, which ensures that when the corner plate 24 is inserted, it can be inserted into the side crease of the accordion bag.

[0034] In some embodiments, the bag opening and closing assembly 1 of the present invention includes:

[0035] Two bag-opening cylinders 11 are arranged opposite each other. A mounting bracket 12 is fixedly installed on the telescopic end of each bag-opening cylinder 11. Several lower suction cups 13 are distributed on the end face of the mounting bracket 12. A closing cylinder 14 is also mounted on the mounting bracket 12. A connecting plate 15 is mounted on the closing cylinder 14. Several upper suction cups 16 are distributed on the end face of the connecting plate 15. The mounting plate 21 is fixed to the bottom of the film clamping base plate 4.

[0036] Of course, the bag-opening cylinder 11 described in this embodiment is fixed inside the entire packaging machine. When the bag-opening cylinder 11 extends, the entire mounting frame 12 moves to drive the lower suction cup 13 and the upper suction cup 16 to move. Specifically, in this utility model, the cylinder component should be connected to an air source, and the suction cup component should be connected to a negative pressure device. This method is a conventional approach for those skilled in the art and will not be elaborated upon here.

[0037] Based on the above embodiments, the present invention also includes a closing cylinder 14 fixed on the upper end of the mounting frame 12. An upper suction cup 16 is fixedly installed on the shaft end of the closing cylinder 14 through a connecting plate 15. That is, the closing cylinder 14 in the present invention is used to realize the individual movement control of the upper suction cup 16 so as to realize the closing operation of the gusset bag.

[0038] The following is a detailed description of our organization's gusseted bag suction cup, square opening, square opening closure, and corner insertion actions:

[0039] Before suction bag operation, ensure that the corner insert component 3 is in its original, non-protruding state, and then proceed with the suction bag action. The suction bag action for gusseted bags is as follows: Figure 4 As shown, the two opening cylinders 11 on both sides push forward simultaneously, and at the same time, they also push outward through the two closing cylinders 14. At this time, the upper suction cup 16 and the lower suction cup 13 hold the two sides of the accordion bag.

[0040] Square opening operation, such as Figure 5As shown, the two opening cylinders 11 retract simultaneously, causing the upper suction cup 16 and the lower suction cup 13 to move to both sides, and the gusset bag opens with the movement of the negative pressure suction cups.

[0041] Square opening closure and pocket insertion operations, such as Figure 5 As shown, both suction cylinders 14 retract simultaneously, causing the upper suction cup 16 to move inward, while the lower suction cup 13 remains stationary; simultaneously, as... Figure 2 As shown, the pushers 23 on both sides of the accordion bag push out simultaneously, and the corner plate 24 is inserted into the fold of the accordion bag under the drive of the pushers 23 to shape the bag. After the bag is inserted, the pushers 23 retract immediately. The speed of the suction cylinder 14 is required to be slightly slower than that of the pushers 23. At the moment the pushers 23 retract, the upper suction cup 16 presses down on the upper end of the accordion bag to close the square opening, thus completing the operation.

[0042] In summary, this utility model uses two insert components 2 to push into the folds on both sides of the gusseted bag 3 for insertion and shaping. The structure is simple and effective. The entire insertion process is completed instantly when the square opening of the gusseted bag is closed. It also effectively prevents wrinkles at the sealing point when the square opening of the gusseted bag is closed, thus preventing problems such as poor appearance and poor sealing quality.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An organ bag square closure gusset mechanism characterized by, include: The bag opening and closing assembly (1) and two corner fitting assemblies (2); The corner fitting assembly (2) includes a mounting plate (21) and a fixing block (22) fixed on the mounting plate (21). A pusher (23) is installed on the upper end of the fixing block (22), and a corner fitting plate (24) is fixed on the moving end of the pusher (23). When the opening and closing assembly (1) closes the gusseted bag, the two corner plates (24) are inserted into the folds on both sides of the gusseted bag to shape it.

2. A gusseted bag square closure gusset mechanism according to claim 1, wherein: A guide rod (25) is also inserted into the guide hole of the fixing block (22), and the guide rod (25) is slidably connected to the fixing block (22) through a linear bearing (26); The upper end of the guide rod (25) is fixedly connected to the corner plate (24).

3. A gusseted bag square closure gusset mechanism according to claim 2, wherein: A limiting block (27) is fixedly installed at the bottom end of the guide rod (25), and a protective pad (28) is also installed on the end face of the limiting block (27). The corner plate (24) has an L-shaped structure.

4. A gusseted bag square closure gusset mechanism according to claim 1, wherein: The bag opening and closing assembly (1) includes: Two bag-opening cylinders (11) are arranged opposite to each other. A mounting bracket (12) is fixedly installed on the telescopic end of the bag-opening cylinder (11). Several lower suction cups (13) are distributed on the end face of the mounting bracket (12). The mounting plate (21) is fixed to the bottom of the bottom of the film clamping seat plate (4).

5. The accordion bag square opening closure corner insertion mechanism according to claim 4, characterized in that: It also includes a closing cylinder (14) fixed on the mounting bracket (12), and an upper suction cup (16) is fixedly mounted on the shaft end of the closing cylinder (14) via a connecting plate (15).

6. A gusseted bag square closure gusset mechanism according to any one of claims 1-5, characterized in that: The mounting plate (21) has two inclined grooves (211) on its end face, and the fixing block (22) is connected to the inclined grooves (211) by fasteners.

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