Bag folding and clamping mechanism

Abstract

The utility model discloses a bag clamping and corner folding mechanism, including the conveyer belt, the conveyer belt top is provided with the bag clamping subassembly, the bag clamping subassembly includes the installation frame and two open grooves, the both sides below of installation frame are provided with the rotating shaft that rotates, the rotating shaft bottom is provided with the corner piece, the utility model discloses: the open groove of both sides opens to the outside, at this moment can be in the installation frame top to the M -shaped loading bag in the loading, when M -shaped loading bag loading is completed, at this moment slide strip moves up, can make two open grooves drive the bag mouth of M -shaped loading bag to draw together to the inside, at this moment through the second electric telescopic link of promoting second rack, through rack gear drive to make rotating shaft rotate, at this moment corner piece will insert in the side of M -shaped loading bag, can fold to the inside to the bag mouth of M -shaped loading bag, the subsequent bag mouth is encapsulated conveniently, need not staff to fold the bag mouth, it is more convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of M-shaped filling bag technology, specifically a bag clamping and folding mechanism. Background Technology

[0002] M-shaped filling bags have a unique structure and multiple advantages. Their opening or sides feature an M-shaped fold design, increasing side depth and capacity. They often utilize multi-layer composite structures such as PET / AL / PE. In terms of performance, they are shock-resistant, slip-resistant, and have excellent sealing properties. For example, M-side valve bags allow for rapid air removal during filling, increasing material filling efficiency by over 30%. Eight-side seal M-bags are widely used in food packaging. Applications cover plastic particles, engineered grains, and food products. Production uses polyethylene, polyester, and aluminum foil as main materials, and involves printing, lamination, and bag-making processes. Automated packaging is achieved with equipment such as pre-packaging machines, improving efficiency and ensuring quality.

[0003] Currently, after filling the M-shaped material bags, the bag opening needs to be sealed. However, during filling, the bag opening needs to be opened. But after opening, the two sides of the bag opening may open outwards. This means that when sealing, the staff needs to fold the bag opening inwards, which is inconvenient and affects efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a bag clamping and folding mechanism to solve the problem mentioned in the background art that the two sides of the opening of the M-shaped filling bag may be stretched outward after filling.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A bag clamping and folding mechanism includes a conveyor belt, and a bag clamping assembly is disposed above the conveyor belt;

[0007] The bag clamping assembly includes a mounting frame and two expansion slots. Rotating shafts are rotatably arranged on the lower sides of the mounting frame, and corner pieces are provided at the bottom of the rotating shafts.

[0008] In a preferred embodiment of this utility model, an electric push rod is provided on the outer side of the expansion groove, and a fixing strip is provided on the telescopic end of the electric push rod.

[0009] In a preferred embodiment of this utility model, the two support slots are rotatably installed inside the mounting frame, and the mounting frame is provided with sliding grooves on both sides. The angled piece is engaged with the middle position of the connecting side of the two support slots.

[0010] In a preferred embodiment of the present invention, a slide bar is slidably disposed inside the slide groove, and a first electric telescopic rod is disposed at the top of the slide groove, the telescopic end of the first electric telescopic rod being connected to the slide bar.

[0011] In a preferred embodiment of the present invention, a first rack is provided on both the front and rear sides of the slide bar, and a first gear is provided on both sides of the spreading groove, wherein the first rack meshes with the first gear.

[0012] In a preferred embodiment of this utility model, a second electric telescopic rod is provided on both sides of the front of the mounting frame, and a second rack is provided on the telescopic end of the second electric telescopic rod.

[0013] In a preferred embodiment of the present invention, a second gear is provided in front of the rotating shaft, and the second rack meshes with the second gear.

[0014] In a preferred embodiment of this utility model, a heat sealing groove is provided behind the conveyor belt.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0016] The beneficial effects are as follows: The M-shaped filling bag is secured by a fixing strip. Pushing down the two sliding strips via the first electric telescopic rods on both sides activates the first gear via the first rack, causing the opening slots on both sides to open outwards. This allows the M-shaped filling bag to be filled from above the mounting frame. Once filled, the sliding strips move upwards, causing the opening of the M-shaped filling bag to fold inwards. The second electric telescopic rod then pushes the second rack, which, through rack and gear transmission, rotates the shaft. The folding tab inserts into the side of the M-shaped filling bag, folding the opening inwards for easier sealing later. This eliminates the need for manual folding, making the operation more convenient.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1This is a schematic diagram of the main structure of the bag clamping and folding mechanism;

[0020] Figure 2 This is a schematic diagram of the bag clamping component in the bag clamping and folding mechanism;

[0021] Figure 3 This is a schematic diagram of the slotted structure in the bag clamping and folding mechanism;

[0022] Figure 4 This is a schematic diagram of the corner-folding plate driving structure in the bag-clamping corner-folding mechanism.

[0023] In the diagram: 1. Conveyor belt; 11. Mounting frame; 12. Spreading groove; 13. Fixing strip; 14. Electric push rod; 2. First gear; 21. Slide groove; 22. Slide bar; 23. First rack; 24. First electric telescopic rod; 3. Rotating shaft; 31. Folding plate; 32. Second gear; 33. Second electric telescopic rod; 34. Second rack; 4. Heat sealing groove. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] Please refer to Figures 1-4 This utility model discloses a bag clamping and folding mechanism, including a conveyor belt 1 for conveying M-shaped bags. A heat sealing groove 4 is provided behind the conveyor belt 1, where an automatic or manual heat sealing device is installed to seal the M-shaped bags. The appropriate heat sealing device can be selected according to the actual situation. A bag clamping assembly is provided above the conveyor belt 1. The bag clamping assembly includes a mounting frame 11 and two expansion grooves 12. The two expansion grooves 12 are rotatably mounted inside the mounting frame 11, while the existing feeding structure is mounted above the mounting frame 11. An electric push rod 14 is provided outside the expansion grooves 12. A fixing strip 13 is provided on the telescopic end of the electric push rod 14. In use, the M-shaped bag is placed on the outside of the two expansion grooves 12. At this time, the fixing strip 13 is pushed by the electric push rod 14 to fix the M-shaped bag.

[0026] The mounting frame 11 has sliding grooves 21 on both sides, and sliding strips 22 are slidably arranged inside the sliding grooves 21. A first electric telescopic rod 24 is arranged at the top of the sliding grooves 21. The telescopic end of the first electric telescopic rod 24 is connected to the sliding strips 22. A first rack 23 is arranged on the front and rear sides of the sliding strips 22. A first gear 2 is arranged on both sides of the opening groove 12. The first rack 23 meshes with the first gear 2. That is, by pushing the two sliding strips 22 down through the first electric telescopic rods 24 on both sides, the first gear 2 can be transmitted through the first rack 23, thereby opening the opening grooves 12 on both sides outward. At this time, the M-shaped material bag can be loaded above the mounting frame 11.

[0027] Rotating shafts 3 are rotatably mounted on both sides of the mounting frame 11. Folding tabs 31 are mounted at the bottom of the rotating shafts 3, connecting to the middle of the two expansion slots 12. Second electric telescopic rods 33 are mounted on both sides of the front of the mounting frame 11. A second rack 34 is mounted on the telescopic end of the second electric telescopic rod 33. A second gear 32 is mounted in front of the rotating shaft 3, meshing with the second rack 34. When the M-shaped filling bag is filled, the slide bar 22 moves upward, causing the two expansion slots 12 to pull the opening of the M-shaped filling bag inward. The second electric telescopic rods 33 then push the second rack 34, which, through rack and gear transmission, causes the rotating shaft 3 to rotate. The folding tabs 31 are then inserted into the side of the M-shaped filling bag, folding the opening inward for easier sealing. This eliminates the need for manual folding of the bag opening, making operation more convenient. Furthermore, the two expansion slots 12 have a gap, allowing the folding tabs 31 to be inserted directly.

[0028] The working principle of this utility model is as follows: The existing feeding structure is installed above the mounting frame 11. In use, the M-shaped filling bag is placed on the outside of the two expansion slots 12. At this time, the fixing strip 13 is pushed by the electric push rod 14, which fixes the M-shaped filling bag. The two sliding strips 22 are pushed down by the first electric telescopic rods 24 on both sides, which then transmits the first gear 2 through the first rack 23, thereby opening the expansion slots 12 on both sides outward. At this time, the M-shaped filling bag can be placed above the mounting frame 11. The material is fed into the bag. After the M-shaped bag is filled, the slide bar 22 moves upward, which causes the two opening slots 12 to move the opening of the M-shaped bag inward. At this time, the second electric telescopic rod 33 pushes the second rack 34, which rotates the rotating shaft 3 through rack and pinion transmission. The folding piece 31 is inserted into the side of the M-shaped bag, which folds the opening of the M-shaped bag inward, making it easier to seal the bag opening later. No workers need to fold the bag opening, making the operation more convenient.

[0029] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A bag clamping and corner-folding mechanism, characterized in that: Includes a conveyor belt (1), and a bag clamping assembly is provided above the conveyor belt (1); The bag clamping assembly includes a mounting frame (11) and two support slots (12). Rotating shafts (3) are rotatably arranged on both sides of the mounting frame (11), and corner pieces (31) are provided at the bottom of the rotating shafts (3).

2. The bag clamping and folding mechanism according to claim 1, characterized in that, An electric push rod (14) is provided on the outside of the support groove (12), and a fixing strip (13) is provided on the telescopic end of the electric push rod (14).

3. The bag clamping and folding mechanism according to claim 1, characterized in that, The two support slots (12) are rotatably installed inside the mounting frame (11). The mounting frame (11) has sliding grooves (21) on both sides. The angled piece (31) is connected to the middle position of the connecting side of the two support slots (12).

4. The bag clamping and folding mechanism according to claim 3, characterized in that, A slide bar (22) is slidably arranged inside the slide groove (21), and a first electric telescopic rod (24) is provided on the top of the slide groove (21). The telescopic end of the first electric telescopic rod (24) is connected to the slide bar (22).

5. The bag clamping and folding mechanism according to claim 4, characterized in that, The slide bar (22) is provided with a first rack (23) on both the front and rear sides, and the expansion groove (12) is provided with a first gear (2) on both sides, and the first rack (23) meshes with the first gear (2).

6. The bag clamping and folding mechanism according to claim 1, characterized in that, The mounting frame (11) is provided with a second electric telescopic rod (33) on both sides in front, and a second rack (34) is provided on the telescopic end of the second electric telescopic rod (33).

7. The bag clamping and folding mechanism according to claim 6, characterized in that, A second gear (32) is provided in front of the rotating shaft (3), and the second rack (34) meshes with the second gear (32).

8. The bag clamping and folding mechanism according to claim 1, characterized in that, A heat sealing groove (4) is provided behind the conveyor belt (1).

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