Bag-making equipment and bag-making filling and sealing system

Abstract

The utility model discloses bag making equipment which comprises a film releasing mechanism, a roller film feeding mechanism, a film pulling mechanism, a bag making welding area, a conveying line and a pipe opening welding mechanism, the film releasing mechanism, the roller film feeding mechanism, the bag making welding area and the pipe opening welding mechanism are sequentially arranged, and the film pulling mechanism and the conveying line are arranged on the same side of the bag making welding area. The film drawing mechanism comprises a film drawing head, a linear drive and an avoiding drive, and the linear drive and the avoiding drive are used for driving the film drawing head to reciprocate at the two ends of the bag making welding area; the bag making, filling and sealing system comprises the bag making equipment, the conveying line is a circulating conveying line, and a pipe opening welding mechanism, a waste edge cutting station, a bag transferring and reversing station, a filling station, a sealing station and a bag discharging station are sequentially arranged on the conveying line. According to the utility model, the mounting distance is shortened, the problems that the longer the film feeding distance is, the easier the film falling fault and the film feeding deviation are caused are avoided, and the problems of lower stability and qualified rate caused by the problems are avoided.

Description

Technical Field

[0001] This utility model relates to the field of flexible bag technology, and in particular to a bag making equipment and a bag making and sealing system. Background Technology

[0002] Non-PVC film soft bag large-volume infusion products have become mainstream products in the pharmaceutical market, with increasing clinical usage. The question is how to produce high-quality, low-cost, and large-volume soft bag large-volume infusion products to meet the growing market demand.

[0003] Existing bag-making technologies, such as the bag-forming device, tail-filling soft bag production line, and production method described in patent CN105416688B, involve setting up a linear module between printing and bag forming for linear film feeding. As soft bag production capacity increases and the number of bags produced each time increases from 2 to 4, 6, or even 8 or more, the linear module becomes increasingly longer, resulting in a longer overall machine. At the same time, the stability and speed of film feeding decrease, which in turn affects the final production quality and pass rate of soft bag infusion products. Utility Model Content

[0004] The purpose of this utility model is to provide a bag-making equipment and a bag-making and sealing system, which solves the problem that as bag-making capacity continues to increase, existing equipment becomes longer, and the stability and speed of film feeding decrease, thus affecting the final production quality and pass rate of soft bag infusion products.

[0005] This utility model is implemented as follows: a bag making device includes a film feeding mechanism, a roller film feeding mechanism, a film pulling mechanism, a bag making welding area, a conveyor line, and a pipe welding mechanism. The film feeding mechanism, the roller film feeding mechanism, the bag making welding area, and the pipe welding mechanism are arranged in sequence. The film pulling mechanism and the conveyor line are located on the same side of the bag making welding area. The film pulling mechanism includes a film pulling head, a linear drive, and an avoidance drive. The linear drive and the avoidance drive are used to drive the film pulling head to reciprocate at both ends of the bag making welding area.

[0006] This invention employs a film feeding method combining a roller film feeding mechanism and a linear film pulling mechanism. The roller film feeding mechanism is positioned between the film feeding mechanism and the bag making and welding area. For situations requiring the processing of multiple soft bags at once, roller conveying is not only simpler than linear conveying but also occupies less space. Furthermore, the film pulling mechanism and the conveyor line are located on the same side of the bag making and welding area, with the film pulling head reciprocating at both ends of the area. This results in a shorter operating distance and higher efficiency when pulling or avoiding obstacles. Compared to existing technologies, this invention shortens the installation distance and is particularly suitable for high-speed production lines processing four, six, or eight soft bags at a time. If producing eight bags, existing linear film feeding modules require at least eight bag positions of space, while this invention only needs to consider the length of the roller film feeding mechanism, requiring less than two bag positions. This avoids the increased likelihood of film drop and delivery deviation due to longer feeding distances, thus preventing lower stability and yield rates caused by these issues. This utility model has a simple and reliable structure, and is particularly suitable for the production of higher-speed soft bag lines. It reduces the installation length space of the mechanism layout, occupies less cleanroom masks, reduces investment in cleanrooms, and lowers operating energy costs.

[0007] A further technical solution of this utility model is: the linear drive is connected to the avoidance drive, the avoidance drive is connected to the film-pulling head, and the direction of motion of the avoidance drive is perpendicular to the direction of motion of the linear drive. The linear drive drives the film-pulling head to move through the avoidance drive, thereby conveying the film material. The avoidance drive can either drive the film-pulling head to move towards the film material to hold the film material or drive the film-pulling head to move away from the film material to avoid the action of the bag-making welding mechanism in the bag-making welding area.

[0008] A further technical solution of this utility model is: the film-pulling head is horizontally positioned and its direction of movement is consistent with that of the avoidance drive. The horizontally positioned film-pulling head clamps the film material from the front end, resulting in higher film-pulling stability; after film pulling is completed, the avoidance drive retracts the film-pulling head to avoid interfering with the bag-making process of the film material.

[0009] A further technical solution of this utility model is: the film-pulling mechanism further includes a film-pressing component, which is placed at the input end of the film-pulling mechanism. During the initial preparation work, the film material is first pulled under the film-pressing component and pressed down. Then, the film-pulling head is moved to the set position and clamps the film material, while the film-pressing component is released, ensuring that the film material can be smoothly restricted to the set position.

[0010] A further technical solution of this utility model is that the film-stretching mechanism is positioned above the conveyor line, thus saving space.

[0011] A further technical solution of this utility model is as follows: the roller film feeding mechanism includes a driving roller and a driven roller arranged opposite to each other. The driving roller and the driven roller are used for film to pass through. The driving roller is connected to a rotary drive, and the driven roller is operable to adjust the distance between itself and the driving roller. When the driving roller rotates, it drives the driven roller to rotate synchronously, so that the film material placed between the driving roller and the driven roller is pulled and conveyed. The distance between the driven roller and the driving roller is adjustable. After completing one film feeding cycle, any excess film that may be generated during the pre-release rolling film feeding is returned under the gravity of the film buffer assembly, preparing for the next film feeding cycle.

[0012] A further technical solution of this utility model is: the driven roller is connected to the lifting drive. The lifting drive is connected to the driven roller, driving the driven roller to move up and down, thereby adjusting the distance between the driven roller and the driving roller.

[0013] A further technical solution of this utility model is as follows: the bag-making and welding area is provided with a mold that can be opened and closed vertically and a mold driving mechanism for driving the mold to move. The mold driving mechanism is located on the side away from the conveyor line. The mold driving mechanism drives the molds placed above and below the film material to open and close, thereby realizing the bag making and welding of the film material. Since the mold driving mechanism is on the side away from the conveyor line, it does not need to avoid the pipe opening when being installed, saving time. At the same time, when the film pulling mechanism avoids the bag-making and welding mechanism in the bag-making and welding area, the film pulling mechanism needs to move a shorter distance, further improving work efficiency.

[0014] A further technical solution of this utility model is: the membrane dispensing mechanism includes a membrane release component and a membrane buffer component. This ensures the stretching of the membrane material and facilitates its smooth transport.

[0015] This utility model also provides a bag making and sealing system, including the bag making equipment, the conveyor line is a circulating conveyor line, and the conveyor line is sequentially provided with a pipe welding mechanism, a waste edge cutting station, a bag transfer and reversing station, a filling station, a sealing station, and a bag exiting station.

[0016] The upper interface mechanism is set on the side of the conveyor line to place the tube opening on the conveyor line. After passing through the bag making equipment, the tube opening is installed in the bag body with one open end. Then, the tube opening is welded to the bag body by the tube opening welding mechanism. The bag body is then trimmed by the waste edge cutting mechanism at the waste edge cutting station. Finally, the bag body passes through the bag transfer and reversal station, filling station, sealing station and bag exit station to complete the bag making and sealing process and obtain the finished infusion bag.

[0017] The beneficial effects of this utility model are as follows: This utility model adopts a film feeding method that combines a roller film feeding mechanism with a linear film pulling mechanism. The roller film feeding mechanism is set between the film feeding mechanism and the bag making and welding area. For situations where multiple soft bags need to be processed at one time, roller conveying is not only simpler than linear conveying but also occupies less length space. At the same time, the film pulling mechanism and the conveyor line are placed on the same side of the bag making and welding area, and the film pulling head reciprocates at both ends of the bag making and welding area, so that the film pulling mechanism has a shorter movement distance and higher efficiency when pulling film or avoiding obstacles. Compared with the prior art, this utility model shortens the installation distance and is particularly suitable for high-speed production of multiple soft bags such as four, six, and eight bags at one time. If eight bags are produced, according to the structure of the prior art, the linear film feeding module needs to occupy the length space of at least eight bag positions. However, in this utility model, only the length space of the roller film feeding mechanism needs to be considered, which only occupies the length space of less than two bag positions. This avoids the problem of film falling off and film deviation that are more likely to occur when the film feeding distance is longer, and avoids the problems of low stability and yield caused by the above problems. This utility model has a simple and reliable structure, and is particularly suitable for the production of higher-speed soft bag lines. It reduces the installation length space of the mechanism layout, occupies less cleanroom masks, reduces investment in cleanrooms, and lowers operating energy costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a bag making and filling system provided by this utility model;

[0019] Figure 2 This is a structural schematic diagram of a bag-making device provided by this utility model;

[0020] Figure 3 This is a front view of a bag-making device provided by this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the film-pulling mechanism provided by this utility model before film pulling;

[0022] Figure 5 This is a schematic diagram of the structure of the film-pulling mechanism provided by this utility model after film pulling;

[0023] Figure 6 This is a side view of the film-pulling mechanism provided by this utility model;

[0024] Figure 7 This is a top view of a bag-making device provided by this utility model.

[0025] Reference numerals: 1. Membrane unwinding assembly, 2. Membrane buffer assembly, 3. Membrane cleaning mechanism, 4. Printing mechanism, 5. Front opening film knife, 6. Roller film feeding mechanism, 7. Rear opening film knife, 8. Film pulling mechanism, 9. Bag making and welding area, 10. Conveyor line, 11. Upper interface mechanism, 12. Preheating mechanism, 13. Tube welding mechanism, 801. Film pulling head, 802. Avoidance drive, 803. Linear drive, 804. Film pressing component, 601. Drive roller, 602. Driven roller, 603. Lifting drive, 14. Waste edge cutting station, 15. Bag transfer and reversing station, 16. Filling station, 17. Sealing station, 18. Bag exit station, 19. Waste discharge mechanism, 20. Membrane material, 201. Infusion bag, 21. Tube opening. Detailed Implementation

[0026] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0027] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0028] Example 1:

[0029] Figure 1-7 A bag-making device is shown, including a film feeding mechanism, a roller film feeding mechanism 6, a film pulling mechanism 8, a bag-making welding area 9, a conveyor line 10, and a nozzle welding mechanism 13. The film feeding mechanism, the roller film feeding mechanism 6, the bag-making welding area 9, and the nozzle welding mechanism 13 are arranged sequentially. The film pulling mechanism 8 and the conveyor line 10 are located on the same side of the bag-making welding area 9. The film pulling mechanism 8 includes a film pulling head 801, a linear drive 803, and an avoidance drive 802. The linear drive 803 and the avoidance drive 802 are used to drive the film pulling head 801 to reciprocate at both ends of the bag-making welding area 9.

[0030] In this embodiment, a film cleaning mechanism 3, a printing mechanism 4, and a front film opening knife 5 are sequentially provided between the film feeding mechanism and the roller film feeding mechanism 6; a rear film opening knife 7 is provided between the roller film feeding mechanism 6 and the film pulling mechanism 8.

[0031] In this embodiment, the linear drive 803 is connected to the avoidance drive 802, and the avoidance drive 802 is connected to the film-pulling head 801. The direction of movement of the avoidance drive 802 is perpendicular to the direction of movement of the linear drive 803. The linear drive drives the film-pulling head to move through the avoidance drive, thereby conveying the film material. The avoidance drive can either move the film-pulling head toward the film material to hold it or move the film-pulling head away from the film material to avoid the action of the bag-making welding mechanism in the bag-making welding area.

[0032] In this embodiment, the linear drive is used to drive the motion trajectory of the membrane pulling head to be consistent with the motion direction of the membrane material.

[0033] In this embodiment, the film-pulling head 801 is horizontally positioned and moves in the same direction as the avoidance drive 802. The horizontally positioned film-pulling head clamps the film material from the front end, resulting in higher film-pulling stability. After film pulling is complete, the avoidance drive retracts the film-pulling head to avoid interfering with the bag-making process.

[0034] In this embodiment, the membrane pulling head is connected to the opening and closing drive for clamping or releasing the membrane material.

[0035] In this embodiment, the membrane pulling head clamps the membrane material from one side along the width direction of the membrane material. When avoiding obstacles, the distance that the membrane pulling head needs to move is short, saving the time spent on avoiding obstacles and improving the overall operating efficiency of the machine.

[0036] In this embodiment, the film stretching mechanism 8 further includes a film pressing member 804, which is located at the input end of the film stretching mechanism 8. During the initial preparation work, the film material is first stretched under the film pressing member and pressed down. Then, the film stretching head is moved to the set position and clamps the film material, while the film pressing member is released, ensuring that the film material can be smoothly restricted to the set position.

[0037] In this embodiment, the position of the pressure film component is fixed.

[0038] In this embodiment, the film-pulling mechanism 8 is positioned above the conveyor line 10, saving space.

[0039] In this embodiment, the film-pulling head is positioned below the avoidance drive, so that there is sufficient height between the film-pulling head and the linear drive for the pipe opening on the conveyor line to pass through. The structures are designed to be compact and do not interfere with each other.

[0040] In this embodiment, the roller film feeding mechanism 6 includes a drive roller 601 and a driven roller 602 arranged opposite to each other. The drive roller 601 and the driven roller 602 are used for film to pass through. The drive roller 601 is connected to a rotary drive, and the driven roller 602 is operable to adjust the distance between itself and the drive roller 601. When the drive roller rotates, it drives the driven roller to rotate synchronously, so that the film material placed between the drive roller and the driven roller is pulled and conveyed. The distance between the driven roller and the drive roller is adjustable. After one film feeding cycle is completed, any excess film that may be generated during the pre-release rolling film feeding is returned under the gravity of the film buffer assembly, preparing for the next film feeding cycle.

[0041] In this embodiment, the drive roller rotates counterclockwise, causing the driven roller to rotate clockwise.

[0042] In this embodiment, the driven roller 602 is connected to the lifting drive 603. The lifting drive is connected to the driven roller and drives the driven roller to move up and down, thereby adjusting the distance between the driven roller and the driving roller.

[0043] In this embodiment, the bag-making and welding area 9 is equipped with a mold that can be opened and closed vertically, and a mold driving mechanism for driving the mold's movement. The mold driving mechanism is located on the side away from the conveyor line 10. The mold driving mechanism drives the molds placed above and below the film material to open and close, thereby realizing the bag making and welding of the film material. Since the mold driving mechanism is on the side away from the conveyor line, it does not need to avoid obstacles when installing at the pipe opening, saving time. At the same time, when the film pulling mechanism avoids the bag-making and welding mechanism in the bag-making and welding area, the distance that the film pulling mechanism needs to move is shorter, further improving work efficiency.

[0044] In this embodiment, the membrane dispensing mechanism includes a membrane release component 1 and a membrane buffer component 2. This ensures the stretching of the membrane material and facilitates its smooth transport.

[0045] The working principle of this utility model is as follows: This utility model adopts a film feeding method that combines a roller film feeding mechanism with a linear film pulling mechanism. The roller film feeding mechanism is set between the film feeding mechanism and the bag making and welding area. For situations that require processing multiple soft bags at once, roller conveying is not only simpler than linear conveying but also occupies less space. At the same time, the film pulling mechanism and the conveyor line are located on the same side of the bag making and welding area. The film pulling head reciprocates at both ends of the bag making and welding area, which makes the film pulling mechanism move a shorter distance and more efficient when pulling or avoiding film. Compared with the prior art, this utility model shortens the installation distance and is particularly suitable for high-speed production of multiple soft bag lines that process four, six, or eight bags at a time. If producing eight bags, according to the existing technology, the linear film feeding module needs to occupy the length of at least eight bag positions. However, in this utility model, only the length of the roller film feeding mechanism needs to be considered, which only occupies the length of less than two bag positions. This avoids the problem of film falling off and film deviation that are more likely to occur when the film feeding distance is longer, and avoids the problems of low stability and yield caused by the above-mentioned problems. This utility model has a simple and reliable structure, and is particularly suitable for the production of higher-speed soft bag lines. It reduces the installation length space of the mechanism layout, occupies less cleanroom masks, reduces investment in cleanrooms, and lowers operating energy costs.

[0046] Example 2:

[0047] like Figure 1-7 The bag making and sealing system shown includes the bag making equipment described in Embodiment 1. The conveyor line 10 is a circulating conveyor line. The conveyor line 10 is provided with a pipe welding mechanism 13, a waste edge cutting station 14, a bag transfer and reversing station 15, a filling station 16, a sealing station 17, and a bag exit station 18 in sequence.

[0048] The upper interface mechanism is set on the side of the conveyor line to place the tube opening on the conveyor line. After passing through the bag making equipment, the tube opening is installed in the bag body with one open end. Then, the tube opening is welded to the bag body by the tube opening welding mechanism. The bag body is then trimmed by the waste edge cutting mechanism at the waste edge cutting station. Finally, the bag body passes through the bag transfer and reversal station, filling station, sealing station and bag exit station to complete the bag making and sealing process and obtain the finished infusion bag.

[0049] In this embodiment, the waste discharge mechanism 19 and the bag exit station are respectively located on both sides of the conveyor line 10.

[0050] The working principle of this utility model is as follows: Figure 1-2 As shown in the diagram, the structural plan layout of the soft bag making and filling process is illustrated. This embodiment uses a single synchronous belt ring conveyor for making six bags at a time and filling and sealing six bags. The infusion membrane material 20 is placed on the membrane release assembly 1. Under the control of the membrane buffer assembly 2, the membrane is manually fed under the pressing component 804, completing the preparation before production operation. Figure 3As shown, during operation, the opened membrane-pulling head 801 moves forward to the upper and lower ends of the membrane material 20 under the action of the avoidance drive 802. The membrane clamping mechanism 801 closes and clamps the infusion membrane material 20. Then, the membrane pressing component 804 releases, and the roller conveying mechanism 6 operates, opening the membrane material 20, which has been cleaned and printed by the membrane cleaning device 3 and the printing mechanism 4, through the front opening membrane knife 5. The drive roller 601 rotates, driving the driven roller 602 to rotate, so that the membrane material 20 is conveyed forward. At the same time, the linear drive 803 drives the membrane-pulling head 801 to convey forward synchronously, pulling the membrane material 20 to cooperate with the tube 21 synchronously conveyed by the conveying line 10. Through the rear opening membrane knife 7, the tube 21 enters the middle of the opening of the membrane material 20. The tube 21 provides an upper interface mechanism that is placed on the conveying line 10. After at least one preheating action by the interface preheating mechanism 12, usually two preheating actions are set for the tube 21, and then it is synchronously conveyed to the middle of the membrane material 20. The membrane delivery position is as follows: Figure 4-7 As shown, after the film feeding is completed, the mechanism on the bag-making welding area 9 operates to complete the welding and forming of the tube opening 21 and the film material 20, and cuts out the bag shape to complete the infusion bag 201; at this time, the film pressing component 804 operates to press down the film material 20, the film pulling head 801 opens, the avoidance mechanism 802 retracts, and the linear drive 803 returns to the initial position, as shown. Figure 3 As shown in the diagram; after the membrane pressing component 804 presses down the membrane material 20, the lifting drive 603 drives the driven roller 602 to move downwards and then upwards, pressing the membrane material 20 to the drive roller 601, releasing any excess membrane that may have been generated during the previous rolling membrane feeding. Under the gravity of the membrane buffer component 2, the excess membrane material is returned, ready to enter the next membrane feeding cycle. When the next membrane feeding cycle is in progress, the infusion bag 201 and the tube opening 21 are sequentially and synchronously conveyed by the conveyor line 10 to the tube opening welding mechanism 13, the waste edge cutting station 14, the bag transfer and reversing station 15, the filling station 16, the sealing station 17, and the bag exit station 18 to complete the production of the soft bag large-volume infusion product. Waste bags generated during filling and sealing can be output through an independently set waste discharge mechanism 19.

[0051] This invention is also applicable to bag making and sealing equipment with a defective welding function.

[0052] The bag making and filling system of this invention is also applicable to the film feeding of a bag making and filling machine with a dual synchronous belt ring conveyor where bag making and filling are carried out separately.

[0053] This embodiment produces and seals six bags of products in one batch, but other quantities, such as four or eight bags, are also possible.

[0054] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bag-making device, characterized in that: The system includes a film feeding mechanism, a roller film feeding mechanism (6), a film pulling mechanism (8), a bag making and welding area (9), a conveyor line (10), and a nozzle welding mechanism (13). The film feeding mechanism, the roller film feeding mechanism (6), the bag making and welding area (9), and the nozzle welding mechanism (13) are arranged in sequence. The film pulling mechanism (8) and the conveyor line (10) are located on the same side of the bag making and welding area (9). The film pulling mechanism (8) includes a film pulling head (801), a linear drive (803), and an obstacle avoidance drive (802). The linear drive (803) and the obstacle avoidance drive (802) are used to drive the film pulling head (801) to reciprocate at both ends of the bag making and welding area (9).

2. The bag-making equipment according to claim 1, characterized in that: The linear drive (803) is connected to the avoidance drive (802), the avoidance drive (802) is connected to the film pulling head (801), and the direction of motion of the avoidance drive (802) is perpendicular to the direction of motion of the linear drive (803).

3. The bag-making equipment according to claim 2, characterized in that: The membrane pulling head (801) is horizontally positioned and its direction of motion is consistent with that of the avoidance drive (802).

4. The bag-making equipment according to claim 1, characterized in that: The film-pulling mechanism (8) further includes a film-pressing component (804), which is located at the input end of the film-pulling mechanism (8).

5. The bag-making equipment according to claim 1, characterized in that: The film-pulling mechanism (8) is positioned above the conveyor line (10).

6. The bag-making equipment according to claim 1, characterized in that: The roller film feeding mechanism (6) includes a drive roller (601) and a driven roller (602) arranged opposite to each other. The drive roller (601) and the driven roller (602) are used for film to pass through. The drive roller (601) is connected to a rotary drive. The driven roller (602) can be operated to adjust the distance between itself and the drive roller (601).

7. A bag-making device according to claim 6, characterized in that: The driven roller (602) is connected to the lifting drive (603).

8. The bag-making equipment according to claim 1, characterized in that: The bag making and welding area (9) is provided with a mold that can be opened and closed and a mold driving mechanism for driving the mold to move. The mold driving mechanism is located on the side away from the conveyor line (10).

9. A bag-making device according to claim 1, characterized in that: The membrane dispensing mechanism includes a membrane dispensing component (1) and a membrane buffer component (2).

10. A bag-making and filling system, characterized in that: The bag making equipment includes any one of claims 1-9, wherein the conveyor line (10) is a circulating conveyor line, and the conveyor line (10) is provided with a pipe welding mechanism (13), a waste edge cutting station (14), a bag transfer and reversing station (15), a filling station (16), a sealing station (17), and a bag exiting station (18) in sequence.

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