Packaging bag anti-wrinkling device of flexible packaging machine
By designing a flattening mechanism and a diversion mechanism in the flexible packaging machine, the problem of bulging caused by the different shapes of the contents of the packaging bag is solved, and the bag is flat and the space is effectively utilized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NOYADI GRP CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-05
AI Technical Summary
After packaging, the contents of the bags bulge due to their varying shapes, making them difficult to stack flat and wasting space.
The design of a flattening mechanism in a flexible packaging machine includes a pressing plate, a lifting bracket, a lifting motor, a lifting screw, and rollers. The longitudinal rollers squeeze and the diversion mechanism separate the unflattened bags, ensuring that the bags are flat.
It effectively flattens the packaging bag, prevents bulging, and improves space utilization efficiency.
Smart Images

Figure CN224198116U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flexible packaging technology, specifically to a wrinkle-proof device for packaging bags in a flexible packaging machine. Background Technology
[0002] Flexible packaging machines are specialized mechanical equipment used for packaging soft and easily deformable materials. They employ advanced packaging technologies and materials to seal various food, pharmaceutical, and cosmetic products, protecting them from external contamination while maintaining their freshness and extending their shelf life. They are widely used in production processes across various industries.
[0003] After packaging, due to the varying shapes of the contents, they may clump or form blocks, causing the packaging bag to bulge. This makes it difficult to stack the bags flat during packaging and wastes space. Therefore, a wrinkle-proof device for packaging bags in flexible packaging machines is needed to meet people's needs. Utility Model Content
[0004] The purpose of this utility model is to provide a wrinkle-proof device for packaging bags in a flexible packaging machine, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a packaging bag anti-wrinkle device for a flexible packaging machine, comprising a device body; a conveyor table is installed on the device body, side plates are installed on both sides of the conveyor table, and a flattening mechanism is provided on the side plates;
[0006] Preferably, the flattening mechanism includes a flattening plate, a lifting bracket installed on one side of the flattening plate, a vertical groove formed on the side plate, the lifting bracket slidably installed in the vertical groove, a lifting motor installed on one side of the side plate, a lifting screw installed on the lifting motor, a screw hole formed on the lifting bracket, a transverse roller and a longitudinal roller provided at the bottom of the flattening plate, a roller motor provided on one side of the flattening plate, the longitudinal rollers respectively installed on the roller motor, and a diversion mechanism provided on one side of the flattening plate.
[0007] Preferably, the diversion mechanism includes a diversion plate, a lifting rod is installed on the top of the diversion plate, a fixing block is installed on one side of the pressure plate, a lifting hole is opened on the fixing block, the lifting rod is slidably installed in the lifting hole, a downward pressure spring is sleeved on the lifting rod, and an anti-detachment plate is installed on the top of the two lifting rods.
[0008] Preferably, one end of the compression spring is installed at the bottom of the fixed block, and the other end of the compression spring is installed at the top of the diverter plate.
[0009] Preferably, the screw hole is threaded, and the lifting screw meshes with the screw hole.
[0010] Preferably, a limiting slide rod is installed on one side of the side plate, and a slide rod hole is provided on the lifting bracket, and the limiting slide rod is slidably installed in the slide rod hole.
[0011] Preferably, a limiting top plate is installed on one side of the side plate, the top end of the limiting slide rod is installed on the limiting top plate, and the top end of the lifting screw is rotatably installed on the limiting top plate.
[0012] Preferably, the rotation direction of the longitudinal roller is perpendicular to the movement direction of the conveyor.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This invention uses longitudinal rollers below the pressure plate to squeeze the flexible packaging bag, gradually flattening it as it is moved by the conveyor and longitudinal rollers. This compresses irregularly shaped flexible packaging bags to the same height, preventing the contents from varying shapes and potentially forming clumps or blocks that would cause the packaging bag to bulge, making it difficult to stack flat and wasting space during packaging. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of a packaging bag anti-wrinkle device for a flexible packaging machine proposed in this utility model;
[0016] Figure 2 This is a cross-sectional structural schematic diagram of a packaging bag anti-wrinkle device for a flexible packaging machine proposed in this utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the transverse roller and longitudinal roller of the anti-wrinkle device for packaging bags of a flexible packaging machine proposed in this utility model;
[0018] Figure 4 This is a structural diagram of the side plate and pressing plate of the anti-wrinkle device for packaging bags of a flexible packaging machine proposed in this utility model.
[0019] In the diagram: 1. Main body of the device; 2. Conveyor table; 3. Side plate; 4. Flattening mechanism; 5. Diverting mechanism; 401. Flat plate; 402. Lifting bracket; 403. Vertical slide rail; 404. Lifting motor; 405. Lifting screw; 406. Screw hole; 407. Horizontal roller; 408. Longitudinal roller; 409. Roller motor; 410. Slide rod hole; 411. Limiting slide rod; 412. Limiting top plate; 501. Diverting plate; 502. Lifting rod; 503. Fixing block; 504. Lifting hole; 505. Downward pressure spring; 506. Anti-detachment plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0021] Example 1: Please refer to Figure 1-4 This utility model provides a technical solution: a packaging bag anti-wrinkle device for a flexible packaging machine, including a device body 1; in order to solve the problem that the contents of the packaging may have different shapes, such as clumps or blocks, causing the packaging bag to bulge, making it difficult to stack flat during packaging and wasting space, a conveyor table 2 is installed on the device body 1, and side plates 3 are installed on both sides of the conveyor table 2. A flattening mechanism 4 is provided on the side plates 3. The flexible packaging bags are flattened and screened by the flattening mechanism 4, and then separated by the diversion plate 501 of the diversion mechanism 5 to separate the flattened and unflattened flexible packaging bags;
[0022] To flatten the flexible packaging bag, the flattening mechanism 4 includes a pressing plate 401. A lifting bracket 402 is mounted on one side of the pressing plate 401. A vertical groove 403 is provided on the side plate 3, and the lifting bracket 402 is slidably installed within the vertical groove 403. A lifting motor 404 is mounted on one side of the side plate 3, and a lifting screw 405 is mounted on the lifting motor 404. A screw hole 406 is provided on the lifting bracket 402, and a thread is provided within the screw hole 406. The lifting screw 405 meshes with the screw hole 406. The pressing plate 4... The bottom of plate 401 is equipped with a horizontal roller 407 and a vertical roller 408. A roller motor 409 is provided on one side of the platen 401. The vertical rollers 408 are respectively installed on the roller motor 409. The rotation direction of the vertical rollers 408 is perpendicular to the movement direction of the conveyor 2. A limit slide rod 411 is installed on one side of the side plate 3. A slide rod hole 410 is opened on the lifting bracket 402. The limit slide rod 411 is slidably installed in the slide rod hole 410. A limit top plate 412 is installed on one side of the side plate 3. The top of the limit slide rod 411 is... Mounted on the limiting top plate 412, the top end of the lifting screw 405 is rotatably mounted on the limiting top plate 412. In use, the sealed flexible packaging bag is conveyed to the area below the pressing plate 401 via the conveyor table 2. The roller motor 409 drives the longitudinal roller 408 to rotate, causing the top of the flexible packaging bag to contact the longitudinal roller 408. The rotation of the longitudinal roller 408 causes the flexible packaging bag to be conveyed forward by the conveyor table 2 while simultaneously being conveyed outward by the longitudinal roller 408. At the same time, the longitudinal roller 408 also... The bag is squeezed during the process, causing the flexible packaging bag to be gradually flattened as it is moved by the conveyor 2 and the longitudinal roller 408. If the flexible packaging bag is too bulging and is not flattened when it is conveyed to the end of the longitudinal roller 408, the flexible packaging bag will be sent to the diverter plate 501 by the combined force of the conveyor 2 and the longitudinal roller 408, and will be separated to one side of the conveyor 2 by the diverter plate 501. If the flexible packaging bag has been flattened when it is conveyed to the end of the longitudinal roller 408, the flattened flexible packaging bag will reach below the transverse roller 407 and continue to be conveyed forward.
[0023] The working principle is as follows: During use, the sealed flexible packaging bag is conveyed to the area below the pressing plate 401 via the conveyor 2. The roller motor 409 drives the longitudinal roller 408 to rotate. The top of the flexible packaging bag will contact the longitudinal roller 408. The rotation of the longitudinal roller 408 will cause the flexible packaging bag to be conveyed forward by the conveyor 2 and outward by the longitudinal roller 408. At the same time, the longitudinal roller 408 will also squeeze the flexible packaging bag, so that the flexible packaging bag is gradually flattened during the displacement carried by the conveyor 2 and the longitudinal roller 408. If the flexible packaging bag is too bulging and has not been flattened by the end of the longitudinal roller 408, the flexible packaging bag will be sent to the diversion plate 5 by the combined force of the conveyor 2 and the longitudinal roller 408. At position 01, the soft packaging bag is separated to one side of the conveyor table 2 by the diverter plate 501. If the soft packaging bag has been flattened when it is conveyed to the end of the longitudinal roller 408, the flattened soft packaging bag will reach below the transverse roller 407 and continue forward. The flattened and unflattened soft packaging bags are separated by the diverter plate 501 and then processed separately. When the height of the pressing plate 401 needs to be adjusted according to the soft packaging bag, the lifting motor 404 drives the lifting screw 405 to rotate. Under the meshing action of the lifting screw 405 and the screw hole 406, the pressing plate 401 is driven to rise and fall. When the height of the pressing plate 401 is adjusted, under the action of the downward spring 505, the bottom of the diverter plate 501 is always in contact with the conveyor belt on the conveyor table 2.
[0024] Example 2: As Figure 2 and Figure 3To separate flattened and uncrushed flexible packaging bags, a diversion mechanism 5 is provided on one side of the pressing plate 401. The diversion mechanism 5 includes a diversion plate 501, a lifting rod 502 mounted on the top of the diversion plate 501, and a fixing block 503 mounted on one side of the pressing plate 401. The fixing block 503 has a lifting hole 504, and the lifting rod 502 is slidably installed in the lifting hole 504. A downward pressure spring 505 is sleeved on the lifting rod 502. One end of the downward pressure spring 505 is installed at the bottom of the fixing block 503, and the other end of the downward pressure spring 505 is installed at the top of the diversion plate 501. An anti-detachment plate 506 is installed on the top of the two lifting rods 502. If the flexible packaging bag is too bulging and is not flattened when it is conveyed to the end of the longitudinal roller 408, the flexible packaging bag will be separated by the conveyor table 2 and the longitudinal roller 408. The combined force of 8 is sent to the diverting plate 501, which separates the soft packaging bag to one side of the conveyor table 2. If the soft packaging bag is flattened when it is conveyed to the end of the longitudinal roller 408, the flattened soft packaging bag will reach below the transverse roller 407 and continue forward. The flattened and unflattened soft packaging bags are separated by the diverting plate 501, and then the two types of soft packaging bags are processed separately. When the height of the pressing plate 401 needs to be adjusted according to the soft packaging bag, the lifting motor 404 drives the lifting screw 405 to rotate. Under the meshing action of the lifting screw 405 and the screw hole 406, the pressing plate 401 is driven to rise and fall. When the height of the pressing plate 401 is adjusted, under the action of the downward spring 505, the bottom of the diverting plate 501 is always in contact with the conveyor belt on the conveyor table 2. The other features are the same as in embodiment 1.
[0025] 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 wrinkle-resistant device for packaging bags in a flexible packaging machine, comprising a main body (1); characterized in that: The device body (1) is equipped with a conveyor platform (2), and side plates (3) are installed on both sides of the conveyor platform (2). A flattening mechanism (4) is provided on the side plates (3). The flattening mechanism (4) includes a flat plate (401), a lifting bracket (402) is installed on one side of the flat plate (401), a vertical groove (403) is provided on the side plate (3), the lifting bracket (402) is slidably installed in the vertical groove (403), a lifting motor (404) is installed on one side of the side plate (3), a lifting screw (405) is installed on the lifting motor (404), a screw hole (406) is provided on the lifting bracket (402), a horizontal roller (407) and a vertical roller (408) are provided at the bottom of the flat plate (401), a roller motor (409) is provided on one side of the flat plate (401), the vertical rollers (408) are respectively installed on the roller motor (409), and a diversion mechanism (5) is provided on one side of the flat plate (401).
2. The anti-wrinkle device for packaging bags of a flexible packaging machine according to claim 1, characterized in that: The diversion mechanism (5) includes a diversion plate (501), a lifting rod (502) is installed on the top of the diversion plate (501), a fixing block (503) is installed on one side of the pressure plate (401), a lifting hole (504) is opened on the fixing block (503), the lifting rod (502) is slidably installed in the lifting hole (504), a downward pressure spring (505) is sleeved on the lifting rod (502), and an anti-detachment plate (506) is installed on the top of the two lifting rods (502).
3. The anti-wrinkle device for packaging bags of a flexible packaging machine according to claim 2, characterized in that: One end of the compression spring (505) is installed at the bottom of the fixed block (503), and the other end of the compression spring (505) is installed at the top of the diverter plate (501).
4. The anti-wrinkle device for packaging bags of a flexible packaging machine according to claim 1, characterized in that: The screw hole (406) is threaded, and the lifting screw (405) meshes with the screw hole (406).
5. The anti-wrinkle device for packaging bags of a flexible packaging machine according to claim 1, characterized in that: A limiting slide rod (411) is installed on one side of the side plate (3), and a slide rod hole (410) is provided on the lifting bracket (402). The limiting slide rod (411) is slidably installed in the slide rod hole (410).
6. The anti-wrinkle device for packaging bags of a flexible packaging machine according to claim 5, characterized in that: A limiting top plate (412) is installed on one side of the side plate (3), the top end of the limiting slide rod (411) is installed on the limiting top plate (412), and the top end of the lifting screw (405) is rotatably installed on the limiting top plate (412).
7. The anti-wrinkle device for packaging bags of a flexible packaging machine according to claim 1, characterized in that: The rotation direction of the longitudinal roller (408) is perpendicular to the movement direction of the conveyor (2).