A tube cosmetic film packaging machine bag making device

By introducing a guide plate and an angle adjustment structure into the film packaging machine, the problem of unsuitable packaging bag height caused by a fixed film entry angle is solved, enabling flexible adjustment of the packaging bag and efficient utilization of materials.

CN224546558UActive Publication Date: 2026-07-24MEIBEST (GUANGDONG) BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MEIBEST (GUANGDONG) BIOTECHNOLOGY CO LTD
Filing Date
2025-09-28
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing film packaging machines cannot adjust the film entry angle, making it difficult to adapt the packaging bag height to tubular cosmetics of different heights, resulting in material waste.

Method used

A bag-making device for a tubular cosmetic film packaging machine was designed, including a film feeding device, a bag-making structure, and a longitudinal sealing structure. The film entry angle is adjusted by a guide plate and an angle adjustment structure to achieve flexible adjustment of the packaging bag.

Benefits of technology

It achieves a high degree of adaptability of packaging bags, reduces material waste, and improves the flexibility and versatility of packaging.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224546558U_ABST
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Abstract

The utility model relates to packing machine technical field, specifically disclose a kind of tubular cosmetic film packing machine's bag making device, comprising: film feeding device, for conveying film to next station;Bag making structure, bag making structure includes bag maker, first guide plate and transverse seal structure, bag maker is equipped with conveying groove in, bag maker includes the second guide plate in the front end of conveying groove, second guide plate is used to form bag mouth, the bottom wall of conveying groove is equipped with sealing groove, sealing groove extends along the length direction of conveying groove and penetrates conveying groove, first guide plate is set in the front end top of conveying groove, and transverse seal structure is used to close the film that protrudes from sealing groove;Longitudinal seal structure, longitudinal seal structure is used to separate tubular cosmetic after film wrapping.This utility model solves the angle that current bag maker cannot adjust film enters, when the height of tubular cosmetic changes, the height of fixed film entering angle cannot adjust packing bag, to cause the problem of packing bag oversized.
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Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, and in particular to a bag-making device for a tubular cosmetic film packaging machine. Background Technology

[0002] In the field of cosmetic packaging, film packaging machines are typically used to make packaging bags from film. Then, tubular cosmetics are placed into the packaging bags via a conveyor belt before the bags are sealed.

[0003] Existing film packaging machines typically use bag makers to produce packaging bags. However, because the angle of the film entering the bag maker is not adjustable, the resulting packaging bags are difficult to adapt to tubular cosmetic products of different heights in the height direction. When the height of the tubular cosmetics decreases, the fixed film entry angle cannot adjust the height of the packaging bag, resulting in packaging bags that are too large and causing material waste. Utility Model Content

[0004] To address the problem that existing bag makers cannot adjust the angle of film entry, resulting in oversized bags when the height of tubular cosmetics decreases due to the fixed film entry angle, this invention provides a bag-making device for a tubular cosmetic film packaging machine.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] An embodiment of this utility model provides a bag-making device for a tubular cosmetic film packaging machine, comprising:

[0007] A film feeding device is used to transport film to the next work station;

[0008] A bag-making structure is provided for forming the film into a packaging bag for packaging tubular cosmetics. The bag-making structure includes a bag maker, a first guide plate, and a horizontal sealing structure. The bag maker has a conveying trough for the tubular cosmetics to be packaged to pass through. The bag maker includes a second guide plate located at the front end of the conveying trough. The second guide plate is used to form the bag opening. A sealing groove is provided at the bottom wall of the conveying trough. The sealing groove extends along the length of the conveying trough and penetrates the conveying trough. The first guide plate is located at the top front end of the conveying trough. The horizontal sealing structure is used to seal the film extending from the sealing groove.

[0009] A longitudinal sealing structure, which is used to separate tubular cosmetics after packaging.

[0010] According to some embodiments of the present invention, the film feeding device includes a film support roller for unwinding the film, a film pressing roller for flattening the film, and a drive roller for driving the film unwinding, arranged in sequence, wherein the drive roller is connected to the bag maker.

[0011] According to some embodiments of the present invention, a guide roller for guiding the unwinding direction of the film and a pinhole roller for changing the direction of the film are further provided between the film support roller and the pressing roller.

[0012] According to some embodiments of the present invention, an angle adjustment structure for adjusting the angle at which the film enters the bag maker is further provided between the drive roller and the bag maker.

[0013] According to some embodiments of the present invention, the angle adjustment structure includes a fixed block and an angle adjustment roller slidably connected to the fixed block, and one end of the angle adjustment roller is provided with a rotating shaft.

[0014] According to some embodiments of the present invention, the front end of the first guide plate is bent and bends toward the sealing groove.

[0015] According to some embodiments of the present invention, the second guide plate is provided with a guide groove, and the height of the guide groove gradually decreases in the length extension direction of the conveying groove.

[0016] According to some embodiments of the present invention, the transverse sealing structure includes two heatable gears that can mesh and rotate with each other.

[0017] According to some embodiments of the present invention, the longitudinal sealing structure includes two heating rods that can move away from and close to each other.

[0018] This utility model has at least the following beneficial effects: By setting a first guide plate, this utility model can flexibly adjust the angle at which the film enters the bag maker according to the height of the tubular cosmetic, thereby producing packaging bags of different sizes. This effectively solves the problem in the prior art that the height of the packaging bag is difficult to adapt to tubular cosmetics of different heights due to the fixed angle of film entry, enabling the packaging machine to better adapt to various specifications of tubular cosmetics and improving the flexibility and versatility of packaging. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the bag-making structure according to an embodiment of the present invention;

[0021] Figure 3 This is a partial structural schematic diagram of a bag maker according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of a bag-making structure according to an embodiment of the present invention.

[0023] Figure 5This is a schematic diagram of the horizontal sealing structure according to an embodiment of the present invention;

[0024] Figure 6 This is a bottom view of the horizontal sealing structure according to an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of a film feeding device according to an embodiment of the present invention. Detailed Implementation

[0026] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.

[0027] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0028] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intermediary element (e.g., the third element) between the element and the other element.

[0029] An embodiment of this utility model provides a bag-making device for a tubular cosmetic film packaging machine, such as... Figure 1-7 As shown, it includes:

[0030] A film feeding device 100 is used to transport film to the next work station;

[0031] Bag-making structure 200 is used to make a film into a packaging bag for packaging tubular cosmetics. Bag-making structure 200 includes a bag maker 210, a first guide plate 220 and a horizontal sealing structure 230. The bag maker 210 is provided with a conveying trough 211 for the tubular cosmetics to be packaged to pass through. The bag maker 210 includes a second guide plate 240 located at the front end of the conveying trough 211. The second guide plate 240 is used to form the bag opening. A sealing groove 212 is provided at the bottom wall of the conveying trough 211. The sealing groove 212 extends along the length of the conveying trough 211 and penetrates the conveying trough 211. The first guide plate 220 is located at the top of the front end of the conveying trough 211. The horizontal sealing structure 230 is used to seal the film extending from the sealing groove 212.

[0032] The longitudinal sealing structure 300 is used to separate tubular cosmetics after the coating.

[0033] The film feeding device 100 continuously transports film to subsequent workstations, providing raw materials for subsequent operations such as bag making. The bag making structure 200 processes the film into packaging bags for packaging tubular cosmetics. The bag maker 210 has a conveying trough 211 inside, which is a channel for the tubular cosmetics to be packaged to pass through. A second guide plate 240 is provided at the front end of the conveying trough 211, which helps to form the bag opening, so that the opening of the packaging bag can be formed according to the predetermined shape and size, providing an accurate bag opening position for subsequent packaging operations. A sealing groove 212 is also provided at the bottom wall of the conveying trough 211. This sealing groove 212 runs through the length of the conveying trough 211, and its purpose is to provide a specific area for subsequent sealing operations, facilitating the sealing of the film to form the bottom part of the packaging bag. The first guide plate 220 is positioned at the top front end of the conveying trough 211. It is used to change the angle at which the film enters the bag maker 210, thereby enabling the film packaging machine to produce packaging bags of different sizes according to tubular cosmetics of different heights. The horizontal sealing structure 230 is used to seal the film extending from the sealing groove 212. After the film extends from the sealing groove 212 of the conveying trough 211, the horizontal sealing structure 230 seals this extended portion of the film, thus forming a structure with only openings at both ends. The vertical sealing structure 300 is used to separate the wrapped tubular cosmetics. After the tubular cosmetics are wrapped, the vertical sealing structure 300 performs a longitudinal separation operation to ensure that each tubular cosmetic can be packaged individually and accurately.

[0034] The working principle of this utility model is as follows:

[0035] 1. The film is first conveyed to the bag-making structure 200 via the film feeding device 100. In the bag-making structure 200, please refer to... Figure 4 The second guide plate 240 at the front end of the bag maker 210 guides the film and helps to form the bag opening. The film forms a space in the conveying groove 211 that can accommodate tubular cosmetics. The excess part of the film extends outward from the sealing groove 212 at the bottom wall of the conveying groove 211.

[0036] 2. Adjust the position of the first guide plate 220 according to the height of the tubular cosmetic to change the angle at which the film enters the bag maker 210, so that the film packaging machine can produce packaging bags of different sizes.

[0037] 3. The tubular cosmetics to be packaged are then placed or conveyed into the formed packaging bags;

[0038] 4. During the movement of the packaging bag and the tubular cosmetic in the conveying trough 211, the horizontal sealing structure 230 seals the film extending from the sealing groove 212.

[0039] 5. The encapsulated tubular cosmetic enters the longitudinal sealing structure 300, where it undergoes longitudinal separation to complete the packaging of the tubular cosmetic.

[0040] In some embodiments, the film feeding device 100 includes a film support roller 110 for unwinding the film, a film pressing roller 120 for flattening the film, and a drive roller 130 for driving the film unwinding, which are arranged in sequence and are connected to the bag maker 210.

[0041] The film roll is placed on the film support roller 110, where the film begins to unwind. The main function of the film support roller 110 is to support the film roll and ensure that the film can unwind smoothly, providing a stable foundation for subsequent conveying. The pressure roller 120 is located after the film support roller 110, and its main function is to flatten the film. After the film is unwound from the film support roller 110, wrinkles or unevenness may occur. The pressure roller 120 flattens the film by its own weight or applied pressure, ensuring that the film remains flat during subsequent conveying and processing. The drive roller 130 is the power source of the film feeding device 100 and is used to drive the unwinding of the film. The drive roller 130 rotates, causing the film to unwind from the film support roller 110 and be conveyed forward. The drive roller 130 is connected to the bag maker 210, which means that the movement of the drive roller 130 is coordinated with the operation of the bag maker 210, ensuring that the film is accurately conveyed to the position of the bag maker 210 and avoiding bag-making problems caused by film conveying too fast or too slow. By sequentially arranging the film support roller 110, the pressure roller 120, and the drive roller 130, the stability of the film throughout the entire process from unwinding to conveying is ensured, and problems such as wrinkles and deviations that occur during the conveying process are reduced.

[0042] Furthermore, a guide roller 140 for guiding the unwinding direction of the film and a pin roller 150 for changing the direction of the film are provided between the film support roller 110 and the pressure roller 120.

[0043] A guide roller 140 is located between the film support roller 110 and the pressure roller 120. The guide roller 140 guides the unwinding direction of the film. After the film is unwound from the film support roller 110, the guide roller 140 ensures that the film enters the pressure roller 120 in a predetermined direction and path. This helps prevent film deviation or wrinkling during transport, ensuring the film smoothly enters the pressure roller 120 for flattening. The guide roller 140 improves the stability and accuracy of film transport, reduces transport problems caused by directional deviations, and thus improves the efficiency and quality of the entire bag-making process. A pin-hole roller 150 is also located between the film support roller 110 and the pressure roller 120. The pin-hole roller 150 changes the direction of the film. The pin-hole roller 150 applies a certain traction and guiding force to the film, thereby changing the film's transport direction. This design allows for flexible adjustment of the film's transport path, enabling it to enter the pressure roller 120 more accurately. The design of the pin-hole roller 150 not only changes the film's direction but also enhances the film's transport stability to a certain extent. By using pinholes to pull the film, the shaking and deviation of the film during the transport process can be reduced, further improving the accuracy of transport.

[0044] In some embodiments, an angle adjustment structure 160 for adjusting the angle at which the film enters the bag maker 210 is provided between the drive roller 130 and the bag maker 210.

[0045] An angle adjustment structure 160 is located between the drive roller 130 and the bag maker 210. The angle adjustment structure 160 is used to adjust the angle at which the film enters the bag maker 210. Since the angle adjustment capability of the first guide plate 220 is limited, when the height of the tubular cosmetic product is less than the adjustable range of the first guide plate 220, the angle adjustment structure 160 is needed to further adjust the angle at which the film enters the bag maker 210 to meet the requirements of this type of tubular cosmetic product. Furthermore, during the process of conveying the film from the drive roller 130 to the bag maker 210, the angle adjustment structure 160 can adjust the angle at which the film enters the bag maker 210 according to different bag-making requirements and equipment layout, ensuring that the film enters the bag maker 210 at the optimal angle, thereby improving the quality and efficiency of bag making. In some embodiments, the angle adjustment structure 160 can be mechanically or electrically adjusted. For example, mechanical adjustment can change the film conveying path through mechanical devices (such as adjustable supports, sliders, etc.), thereby adjusting the angle at which the film enters the bag maker 210. This adjustment method is generally more intuitive and simple to operate. Alternatively, the film conveying path can be automatically adjusted using pneumatic or electric devices (such as cylinders, motors, etc.).

[0046] Furthermore, the angle adjustment structure 160 includes a fixed block 161 and an angle adjustment roller 162 slidably connected to the fixed block 161, with a rotating shaft 163 at one end of the angle adjustment roller 162.

[0047] A fixing block 161 is used to fix and support the angle adjusting roller 162. It is typically mounted on the frame of the equipment, providing stable support for the angle adjusting roller 162. The fixing block 161 is located between the drive roller 130 and the bag maker 210, ensuring that the angle adjusting structure 160 can be accurately installed on the film conveying path. The angle adjusting roller 162 is used to adjust the angle at which the film enters the bag maker 210. Due to the limited angle adjustment capability of the first guide plate 220, when the height of the tubular cosmetic is less than the adjustable range of the first guide plate 220, the position of the angle adjusting roller 162 needs to be adjusted to meet the requirements of this tubular cosmetic. The angle adjusting roller 162 is slidably connected to the fixing block 161, meaning that the angle adjusting roller 162 can slide on the fixing block 161 in a certain direction to achieve angle adjustment. One end of the angle adjusting roller 162 is provided with a rotating shaft 163, which provides a center of rotation around which the film can rotate. The angle adjusting structure 160 can be manually adjusted. The angle of the film entering the bag maker 210 can be adjusted by manually operating the angle adjustment roller 162 on the fixed block 161.

[0048] The working principle of this embodiment is as follows:

[0049] First, the film is conveyed from the drive roller 130 to the angle adjustment structure 160. Then, the position of the film is adjusted by sliding the angle adjustment roller 162 on the fixed block 161, thereby changing the angle at which the film enters the bag maker 210.

[0050] In some embodiments, the front end of the first guide plate 220 is bent toward the sealing groove 212.

[0051] The front end of the first guide plate 220 is designed with a curved shape, which can better guide the film into the conveying groove 211. The curved front end can better conform to the shape of the film, reducing wrinkles and unevenness of the film when entering the conveying groove 211, thereby improving the appearance quality of the packaging bag.

[0052] In some embodiments, the second guide plate 240 is provided with a guide groove 241, and the height of the guide groove 241 gradually decreases in the length extension direction of the conveying groove 211.

[0053] The second guide plate 240 has a guide groove 241 for guiding the film forming. Along the length of the conveying channel 211, the height of the guide groove 241 gradually decreases. This means that the guide groove 241 is inclined, with its height gradually decreasing from one end to the other. The design of the guide groove 241 allows the film to gradually form as it passes through the second guide plate 240, creating a gradually narrowing bag opening. This design helps ensure that the shape and size of the bag opening meet design requirements, improving the forming quality of the packaging bag.

[0054] In some embodiments, the transverse sealing structure 230 includes two heatable gears 231 that can mesh and rotate with each other.

[0055] The horizontal sealing structure 230 consists of two heatable gears 231 that can mesh and rotate. This meshing rotation of the two gears 231 ensures tight and uniform contact between them, achieving precise sealing. The meshing rotation of the two heatable gears 231 enables precise sealing of the film. The meshing design of the gears 231 ensures uniform pressure distribution during the sealing process, thereby improving the quality and reliability of the seal. The heating function of the gears 231 ensures that the film is fully melted and bonded together during the sealing process, forming a strong seal.

[0056] In some embodiments, the longitudinal sealing structure 300 includes two heating rods that can move away from and close to each other.

[0057] The longitudinal sealing structure 300 consists of two heating rods that can move closer or further apart. The design of the heating rods allows them to move closer together when needed for the sealing operation, or further apart to release the sealed film. Precise longitudinal sealing of the film can be achieved by bringing the two heating rods closer together. The heating function of the heating rods ensures that the film is fully melted and bonded together during the sealing process, forming a strong longitudinal seal.

[0058] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art should understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined by the appended claims and their equivalents.

Claims

1. A bag-making device for a tubular cosmetic film packaging machine, characterized in that, include: A film feeding device (100) is used to transport film to the next station; A bag-making structure (200) is used to make the film into a packaging bag for packaging tubular cosmetics. The bag-making structure (200) includes a bag maker (210), a first guide plate (220), and a horizontal sealing structure (230). The bag maker (210) is provided with a conveying groove (211) for the tubular cosmetics to be packaged to pass through. The bag maker (210) includes a second guide plate (240) located at the front end of the conveying groove (211). The second guide plate (240) is used to form the bag opening. A sealing groove (212) is provided at the bottom wall of the conveying groove (211). The sealing groove (212) extends along the length direction of the conveying groove (211) and penetrates the conveying groove (211). The first guide plate (220) is located at the top front end of the conveying groove (211). The horizontal sealing structure (230) is used to seal the film extending from the sealing groove (212). A longitudinal sealing structure (300) is used to separate tubular cosmetics after packaging.

2. The bag-making device of a tubular cosmetic film packaging machine according to claim 1, characterized in that, The film feeding device (100) includes a film support roller (110) for unwinding the film, a film pressing roller (120) for flattening the film, and a drive roller (130) for driving the film unwinding, arranged in sequence. The drive roller (130) is connected to the bag maker (210).

3. The bag-making device of a tubular cosmetic film packaging machine according to claim 2, characterized in that, Between the film support roller (110) and the pressing roller (120), there is also a guide roller (140) for guiding the unwinding direction of the film and a pin roller (150) for changing the direction of the film.

4. The bag-making device of a tubular cosmetic film packaging machine according to claim 2, characterized in that, An angle adjustment structure (160) for adjusting the angle at which the film enters the bag maker (210) is also provided between the drive roller (130) and the bag maker (210).

5. The bag-making device of a tubular cosmetic film packaging machine according to claim 4, characterized in that, The angle adjustment structure (160) includes a fixed block (161) and an angle adjustment roller (162) slidably connected to the fixed block (161). One end of the angle adjustment roller (162) is provided with a rotating shaft (163).

6. A bag-making apparatus for a tubular cosmetic film packaging machine according to any one of claims 1 to 5, characterized in that, The front end of the first guide plate (220) is bent and curves toward the sealing groove (212).

7. A bag-making apparatus for a tubular cosmetic film packaging machine according to any one of claims 1 to 5, characterized in that, The second guide plate (240) is provided with a guide groove (241), and the height of the guide groove (241) gradually decreases in the length extension direction of the conveying groove (211).

8. A bag-making apparatus for a tubular cosmetic film packaging machine according to any one of claims 1 to 5, characterized in that, The transverse sealing structure (230) includes two heatable gears (231) that can mesh and rotate with each other.

9. A bag-making apparatus for a tubular cosmetic film packaging machine according to any one of claims 1 to 5, characterized in that, The longitudinal sealing structure (300) includes two heating rods that can move away from and close to each other.