Continuous filling device
Through the cooperation of the membrane clamp mechanism and multiple rolling sealing equipment, the problem that existing bag filling machines cannot achieve continuous filling is solved, high-quality continuous bag filling is achieved, and the flatness and firmness of the edge seal is improved, and the stability and reliability of the filling is ensured.
Patent Information
- Application Number
- CN202422624914.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The existing bag making filling machines cannot achieve stable and reliable continuous bag making filling and cannot produce continuous filling packaging.
The membrane jelly mechanism and multiple rolling sealing equipment are used to achieve continuous filling through the membrane bag forming assembly, and the redundant backup and heat sealing assembly of the rolling sealing equipment are used to improve the edge sealing firmness, ensuring the stability and reliability of filling.
High-quality continuous bag filling is achieved, which improves edge sealing flatness and firmness, ensures the stability and reliability of filling, and improves the continuity and safety of production.
Smart Images
Figure CN223253472U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of filling technology, and in particular to a continuous filling device. Background Art
[0002] A bag making and filling machine is a device that completes the filling and sealing of materials during the bag making process, and usually produces independent filled bags.
[0003] However, in some processes, it is necessary to produce continuous filling bags, that is, continuous bag making and continuous filling to form continuous filling bags. The current bag making and filling machines cannot achieve stable and reliable continuous bag making and filling. Utility Model Content
[0004] The purpose of this application is to solve the problem in the prior art that bag making and filling machines cannot achieve stable and reliable continuous bag making and filling. Therefore, this application provides a continuous filling device that, through the cooperation of a film clamping mechanism and multiple rolling sealing devices, achieves high-quality, continuous and reliable filling bag preparation, thereby achieving stable and reliable continuous bag making and filling.
[0005] The embodiment of the present application provides a continuous filling device, including a filling tube and a film bag forming assembly;
[0006] The film bag forming assembly is used to continuously receive the film strip and to form a continuous filling bag by connecting the two sides of the film strip in the length direction; the filling pipe extends into the film bag forming assembly and continuously fills the filling bag; wherein,
[0007] The film bag forming assembly includes a film bag forming die, a film clamping mechanism, a plurality of rolling sealing devices and a transverse sealing device arranged in sequence along the filling direction;
[0008] The film bag forming mold is trumpet-shaped and covers the circumference of the filling tube to guide both sides of the film strip in the length direction to cover the circumference of the filling tube;
[0009] The film clamping mechanism includes two clamping plates arranged opposite to each other to guide the two sides of the film strip in the length direction to fit together;
[0010] The plurality of rolling sealing devices are arranged in sequence, and the rolling sealing devices include two rolling heat sealing assemblies arranged opposite to each other, and the rolling heat sealing assemblies include a driving wheel, a driven wheel, and a conveyor belt wound around the two wheels, and at least one of the driving wheel and the driven wheel is provided with a heating element to continuously pull and heat-seal the side edges of the film strips after lamination;
[0011] The transverse sealing device is used to fix and connect the bottom of the film strip after both sides are fixed to form the filling bag.
[0012] By adopting the above technical solution, redundant backup of multiple rolling sealing devices is achieved to avoid the need for shutdown due to damage of the rolling sealing devices, thereby achieving continuous bag making and filling, and improving the stability and reliability of continuous production; and, the film strip is first guided to fit on both sides in the length direction by the film clamping mechanism, and then the edge is sealed by the rolling sealing device, thereby improving the edge sealing flatness, thereby improving the edge sealing firmness, and further improving the quality of continuously filled bags, providing a basis for achieving continuous filling; at the same time, the conveyor belt of the rolling sealing device increases the pulling and conveying distance of the film strip (filling bag) by the rolling sealing device, thereby improving the conveying stability and reliability of the film strip (filling bag), providing a stable environment for filling, and thereby ensuring stable and reliable filling; the heating element of the rolling sealing device transfers heat to the conveyor belt through the driving wheel or the driven wheel, thereby increasing the heat sealing distance, further improving the edge sealing firmness, and further improving the quality of continuously filled bags, and providing a basis for achieving continuous filling.
[0013] In some embodiments, the filling tube is arranged vertically, and the filling direction is the direction of gravity.
[0014] In some embodiments, a heating element is provided on one of the driving wheel and the driven wheel close to the film clamping mechanism.
[0015] The adoption of the above technical solution improves the edge sealing efficiency and ensures filling safety by forming continuous filling bags as quickly as possible.
[0016] In some embodiments, the clamping plate has a first length along the filling direction, with one end extending to the end of the filling tube and the other end extending to the feed port of the closest rolling sealing device.
[0017] The above technical solution makes the film clamping mechanism simple in structure, and one end is tightly fitted with the filling tube, which improves the compactness of the device and effectively controls the volume. The other end is tightly fitted with the rolling sealing equipment, further ensuring that the two sides of the film strip entering the rolling sealing equipment are flat, thereby improving the flatness and firmness of the edge sealing.
[0018] In some embodiments, the invention further comprises a film rolling unit and a film splicing unit, wherein the film rolling unit provides a film strip to the film bag forming assembly via the film splicing unit;
[0019] The film roll unit includes a film roll fixing member, a film roll driving member and an abutting member;
[0020] The film roll fixing member is used to connect the film roll, and the film roll is a film strip stored in a roll;
[0021] The film roll driving member is connected to the abutting member and abuts against the edge of the film roll through the abutting member, and the film roll driving member can rotate to drive the film roll to unwind;
[0022] The film splicing unit is used to clamp and fix the front and rear film strips when replacing the film roll.
[0023] By adopting the above technical solution, the film roll is directly driven to rotate and unwind through the film roll driving member. Compared with the conventional method of driving the film roll to rotate through the film roll fixing member, it can directly adapt to different types of film rolls, has high versatility, effectively controls costs, and is simple to operate because the film roll driving member can be directly pressed against the film roll.
[0024] In some embodiments, the invention further comprises a film strip buffer unit disposed between the film splicing unit and the film bag forming assembly;
[0025] The film tape buffer unit includes a plurality of movable conveying rollers distributed on both sides of a first straight line, wherein the rotation axes of the conveying rollers are parallel to each other and perpendicular to the first straight line; wherein the first straight line is a line connecting the feed port and the discharge port of the film tape buffer unit;
[0026] The film tape is in a Z-shape and passes around the plurality of conveying rollers on both sides of the first straight line in sequence.
[0027] By adopting the above technical solution, when the film roll unit is unable to feed material during film splicing, the stored material is released by moving the conveyor roller, thereby providing the film bag forming component with film tape continuously, stably and reliably within a certain period of time, further ensuring continuous bag making and filling.
[0028] In some embodiments, both ends of the conveying roller are slidably disposed on the guide rail and are connected to independent roller driving members to drive the conveying roller to slide on the guide rail.
[0029] By adopting the above technical solution, the reliability of the conveyor roller movement is improved through the guide rail, thereby improving the reliability of the storage material release, ensuring that the film strip is continuously transmitted with a preset tension force, and maintaining the normal subsequent filling; and, by connecting each conveyor roller to an independent roller drive component, independent control and movement of each conveyor roller is achieved, further improving the reliability of the conveyor roller movement.
[0030] Other features and corresponding beneficial effects of the present application are described in the latter part of the specification, and it should be understood that at least some of the beneficial effects become obvious from the description in the specification of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 This is a schematic diagram of the structure of Example 1 of the present application;
[0032] Figure 2 This is a structural diagram of Example 2 of this application.
[0033] Description of reference numerals:
[0034] 1. Film roll; 2. Film tape;
[0035] 110, filling tube; 120, film bag forming mold; 130, film clamping mechanism; 131, clamping plate; 140, rolling sealing device; 141, driving wheel; 142, driven wheel; 143, conveyor belt; 150, transverse sealing device;
[0036] 210, film roll fixing member; 220, film roll driving member; 230, abutting member; 240, mounting platform;
[0037] 310, heat sealing device; 320, first guide roller; 330, second guide roller;
[0038] 410. Conveyor roller; 420. Guide rail. DETAILED DESCRIPTION
[0039] The following specific embodiments illustrate the implementation of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this application are limited to this implementation. On the contrary, the purpose of introducing the application in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present application. In order to provide an in-depth understanding of the present application, the following description will contain many specific details. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other unless there is a conflict.
[0040] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0041] The following will clearly and completely describe the technical solution of this application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.
[0042] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description created by the present application, unless otherwise specified, "multiple" means two or more.
[0043] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0044] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.
[0045] Example 1:
[0046] See Figure 1 , Figure 1 This is a schematic structural diagram of an embodiment of the present application.
[0047] An embodiment of the present application provides a continuous filling device, including a filling tube 110 and a film bag forming assembly.
[0048] The film bag forming assembly is used to continuously receive the film strip 2 and make continuous filling bags by connecting the two sides of the film strip 2 in the length direction.
[0049] The filling tube 110 extends into the film bag forming assembly and continuously fills the filling bag.
[0050] In one embodiment, the film bag forming assembly includes a film bag forming die 120 , a film clamping mechanism 130 , a plurality of rolling sealing devices 140 , and a transverse sealing device 150 , which are sequentially arranged along the filling direction.
[0051] The film bag forming mold 120 is trumpet-shaped and covers the circumference of the filling tube 110 to guide both sides of the length direction of the film strip 2 to cover the circumference of the filling tube 110, that is, to guide the planar film strip 2 to form a cylindrical structure.
[0052] The film clamping mechanism 130 is used to guide the two sides of the film strip 2 in the length direction to be bonded together.
[0053] A plurality of rolling sealing devices 140 are arranged in sequence and are used to continuously pull and fix the side edges of the connecting film strip 2 after being attached.
[0054] The transverse sealing device 150 is used to fix and connect the bottom of the film strip 2 fixed on both sides to form a filling bag.
[0055] This method first guides the two sides of the film strip 2 in the length direction to fit together through the film clamping mechanism 130, and then seals the edges through the rolling sealing device 140, which improves the flatness of the edge sealing, thereby improving the firmness of the edge sealing, and further improving the quality of the continuous filling bag, providing a basis for achieving continuous filling.
[0056] Furthermore, multiple rolling sealing devices 140 can operate alternately to achieve redundant backup, thus avoiding the need to shut down the rolling sealing device 140 due to damage, achieving continuous bag making and filling, and improving the stability and reliability of continuous production.
[0057] It is understood that to form continuously filled bags, the transverse sealing device 150 typically performs only one transverse sealing operation and does not operate again during subsequent production processes. Furthermore, during subsequent production processes, the transverse sealing device 150 can be left open to allow subsequent filled bags to pass freely through. Alternatively, the filled bags can be immediately removed from the transverse sealing device 150 after the transverse sealing operation, allowing subsequent filled bags to pass freely through.
[0058] The transverse sealing device 150 can be a conventional heat sealing machine.
[0059] In a specific embodiment, the number of the plurality of rolling sealing devices 140 is two, which can control the cost and the device volume on the basis of achieving redundancy backup.
[0060] In one embodiment, the filling tube 110 is vertically arranged, and the filling direction is the gravity direction, so as to facilitate the installation of the film bag forming mold 120, the film clamping mechanism 130, the plurality of rolling sealing devices 140 and the transverse sealing device 150, and to facilitate filling.
[0061] In one embodiment, the rolling sealing device 140 includes two rolling heat sealing assemblies disposed opposite to each other.
[0062] The rolling heat sealing assembly includes a driving wheel 141, a driven wheel 142, and a conveyor belt 143 wound around the two. At least one of the driving wheel 141 and the driven wheel 142 is provided with a heating element, which is used to continuously pull and heat-seal the side edges of the film strip 2 after being attached. On the one hand, this method increases the limited distance of the rolling sealing device 140 for pulling and conveying the film strip 2 (filling bag) through the conveyor belt 143, thereby improving the stability and reliability of the conveying of the film strip 2 (filling bag), providing a stable environment for filling, and thus ensuring stable and reliable filling. On the other hand, the heating element transfers heat to the conveyor belt 143 through the driving wheel 141 or the driven wheel 142, increasing the heat sealing distance, further improving the firmness of the edge sealing, and thus improving the quality of continuously filled bags, providing a basis for achieving continuous filling.
[0063] In one embodiment, one of the driving wheel 141 and the driven wheel 142 close to the film clamping mechanism 130 is provided with a heating element, thereby improving the edge sealing efficiency and ensuring filling safety by forming continuous filling bags as quickly as possible.
[0064] In one embodiment, the film clamping mechanism 130 includes two clamping plates 131 arranged opposite to each other, the clamping plates 131 have a first length along the filling direction, and one end extends to the end of the filling tube 110, and the other end extends to the feed port of the nearest rolling sealing device 140, so that the film clamping mechanism 130 has a simple structure, and one end is tightly fitted with the filling tube 110, thereby improving the compactness of the device and effectively controlling the volume, and the other end is tightly fitted with the rolling sealing device 140, further ensuring that the two sides of the film strip 2 entering the rolling sealing device 140 are flat, thereby improving the flatness and firmness of the edge sealing.
[0065] Example 2:
[0066] See Figure 2 , Figure 2 Schematic diagram of the structure of this embodiment.
[0067] On the basis of Example 1, the continuous filling device in this embodiment further includes a film roll unit and a film splicing unit.
[0068] The film roll unit provides the film strip 2 to the film bag forming assembly via the film splicing unit. The film splicing unit is used to clamp and securely connect the front and rear film strips 2 when the film roll 1 is replaced.
[0069] In one embodiment, the film roll unit includes a film roll fixing member 210 , a film roll driving member 220 and an abutting member 230 .
[0070] The film roll fixing member 210 is used to connect the film roll 1, which is a rolled film strip 2.
[0071] The film roll driving member 220 is connected to the abutment member 230, and is attached to the edge of the film roll 1, that is, the outermost film surface of the film roll 1, through the abutment member 230. The film roll driving member 220 and the film roll fixing member 210 can be installed at a certain distance from each other through the abutment member 230, thereby improving the convenience of installation and maintenance, and facilitating the installation of film rolls 1 of different sizes.
[0072] The film roll driving component 220 can rotate to drive the film roll 1 to unwind, that is, the film roll 1 rotates to unfold the film tape 2, that is, the film roll 1 is directly driven to rotate and unwind through the film roll driving component 220. Compared with the conventional method of driving the film roll 1 to rotate through the film roll fixing component 210, it can directly adapt to different types of film rolls 1, has high versatility, effectively controls costs, and can be directly pressed against the film roll 1 through the film roll driving component 220, which is simple to operate.
[0073] It should be noted that conventional film roll fixing members with unwinding functions, such as unwinding shafts, need to have a diameter that closely matches the inner diameter of the film roll 1, and are usually provided with a limit mechanism at the ends to limit the ends of the film roll 1. One end of the unwinding shaft is connected to the drive motor via transmission gears, resulting in a complex structure. In addition, the limit mechanism needs to be unlocked when installing the film roll 1, which is inconvenient to operate. However, the present application directly drives the film roll 1 through the film roll driver 220. Therefore, the structure of the film roll fixing member 210 can be relatively simple, for example, only the shaft is installed, and its diameter can be small to adapt to film rolls 1 of various inner diameters, and there can be a certain gap between the two.
[0074] In one embodiment, the film roll unit further includes a mounting platform 240 , and the film roll fixing member 210 is disposed on the mounting platform 240 .
[0075] One end of the abutment 230 is connected to the film roll driving member 220, and the other end is spaced apart from the film roll fixing member 210 and rotatably connected to the mounting platform 240, so that the abutment 230 has a tendency to fall back to the film roll 1 connected to the film roll fixing member 210 under the action of gravity, further improving the convenience of operation.
[0076] Furthermore, the abutment 230 is connected to a torsion spring, which applies a torsional force to the abutment 230 toward the film roll fixing member 210, so that the film roll driving member 220 has a tendency to fit the edge of the film roll 1 on the film roll fixing member 210, that is, to fit the outermost film surface of the film roll 1, further improving the convenience of operation.
[0077] In one embodiment, the abutment member 230 is a pneumatic rod, which can be easily adjusted in length. The film roll driving member 220 is a motorized roller.
[0078] In one embodiment, two film roll units are provided, so that two film rolls 1 can be provided at the same time, avoiding the need to replace and install the film rolls 1 when splicing the film, thereby shortening the splicing time and improving production efficiency.
[0079] In one embodiment, the film splicing unit includes a heat sealing device 310, and preferably also includes a first guide component arranged between the discharge port of the film roll unit and the heat sealing device 310, and a second guide component arranged between the heat sealing device 310 and the feed port of the film tape buffer unit.
[0080] The first guide assembly includes two first guide rollers 320 arranged opposite to each other.
[0081] In a specific embodiment, the two first guide rollers 220 can be used to guide the film strip 2 output by the film roll unit 100 to the heat sealing device 210 when the film is not being spliced, and to guide the two film strips 2 output by the film roll unit 100 to the heat sealing device 210 when the film is being spliced, and to make the two film strips 2 overlap, thereby improving the docking accuracy of the two film strips 2 and further improving the film splicing effect.
[0082] That is, when film splicing is not in progress, the two first guide rollers 220 may be spaced apart. The film roll unit 100 delivers a film strip 2, which passes through the gap between the two first guide rollers 220 and connects to the heat-sealing device 210. One of the two first guide rollers 220 guides the film strip 2. During film splicing, the two first guide rollers 220 are clamped, for example, by relative movement. The film roll unit 100 delivers two film strips 2, which pass through the two first guide rollers 220 and connect to the heat-sealing device 210. The two first guide rollers 220 clamp the two film strips 2 so that they overlap and serve as guides. It will be appreciated that while the two first guide rollers 220 are clamping, they can also roll and convey the film strip 2 forward.
[0083] The heat sealing device 310 is used to clamp and heat-seal the two film strips 2 at the parts of the heat sealing device 310 into one.
[0084] The second guide assembly includes a second guide roller 330 , and the second guide roller 330 is used to guide the film strip 2 out of the discharge port of the heat sealing device 310 .
[0085] This method achieves clamping and heat-sealing the film through the heat-sealing device 310, and improves the film-sealing effect through the first guide component and the second guide component, thereby improving the feeding quality and ensuring the production quality.
[0086] In one embodiment, the continuous filling device further includes a film strip buffer unit disposed between the film splicing unit and the film bag forming assembly.
[0087] The film tape buffer unit includes a plurality of movable conveying rollers 410 distributed on both sides of a first straight line, wherein the rotation axes of the conveying rollers 410 are parallel to each other and perpendicular to the first straight line, which is a line connecting the feed port and the discharge port of the film tape buffer unit.
[0088] The film tape 2 is in a Z shape and passes around the multiple conveying rollers 410 on both sides of the first straight line in turn, so that the film tape 2 in the film tape buffer unit is released through the movement of each conveying roller 410, thereby realizing continuous feeding.
[0089] For example, the film tape buffer unit may have a first state and a second state, wherein
[0090] In the first state, the film splicing unit is not clamped, and the plurality of conveying rollers 410 apply tension to the film strip 2 , so that the film strip 2 is continuously transmitted to the discharge port of the film strip buffer unit at a preset tension.
[0091] In the second state, the film splicing unit is clamped, and at least one conveying roller 410 moves toward the first straight line, so that the film strip 2 is continuously transmitted to the discharge port of the film strip buffer unit while maintaining a preset tension.
[0092] In this way, when the film roll unit is unable to feed material during film splicing, the conveying roller 410 moves to release the stored material, thereby providing the film strip 2 to the film bag forming component continuously, stably and reliably within a certain period of time, further ensuring continuous bag making and filling.
[0093] In one embodiment, both ends of the conveying roller 410 are slidably disposed on the guide rails 420 and are connected to independent film roll driving members 220 to drive the conveying roller 410 to slide on the guide rails 420 .
[0094] This method improves the movement reliability of the conveying roller 410 through the guide rail 420, thereby improving the reliability of the stored material release, ensuring that the film strip 2 is continuously transmitted with a preset tension force, and maintaining the normal subsequent filling.
[0095] Furthermore, by connecting each conveying roller 410 to an independent roller driving member, each conveying roller 410 can be independently controlled and moved, thereby further improving the movement reliability of the conveying roller 410 .
[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A continuous filling device, characterized in that: Including filling tube and film bag forming assembly; The film bag forming assembly is used to continuously receive the film strip and to form a continuous filling bag by connecting the two sides of the film strip in the length direction; the filling pipe extends into the film bag forming assembly and continuously fills the filling bag; wherein, The film bag forming assembly includes a film bag forming die, a film clamping mechanism, a plurality of rolling sealing devices and a transverse sealing device arranged in sequence along the filling direction; The film bag forming mold is trumpet-shaped and covers the circumference of the filling tube to guide both sides of the film strip in the length direction to cover the circumference of the filling tube; The film clamping mechanism includes two clamping plates arranged opposite to each other to guide the two sides of the film strip in the length direction to fit together; The plurality of rolling sealing devices are arranged in sequence, and the rolling sealing devices include two rolling heat sealing assemblies arranged opposite to each other, and the rolling heat sealing assemblies include a driving wheel, a driven wheel, and a conveyor belt wound around the two wheels, and at least one of the driving wheel and the driven wheel is provided with a heating element to continuously pull and heat-seal the side edges of the film strips after lamination; The transverse sealing device is used to fix and connect the bottom of the film strip after both sides are fixed to form the filling bag.
2. The continuous filling device according to claim 1, characterized in that: The filling tube is arranged vertically, and the filling direction is the direction of gravity.
3. The continuous filling device according to claim 1, characterized in that: One of the driving wheel and the driven wheel close to the film clamping mechanism is provided with a heating element.
4. The continuous filling device according to claim 1, characterized in that: The clamping plate has a first length along the filling direction, with one end extending to the end of the filling tube and the other end extending to the feed port of the closest rolling sealing device.
5. The continuous filling device according to claim 1, characterized in that: It also includes a film rolling unit and a film splicing unit, wherein the film rolling unit provides a film strip to the film bag forming assembly through the film splicing unit; The film roll unit includes a film roll fixing member, a film roll driving member and an abutting member; The film roll fixing member is used to connect the film roll, and the film roll is a film strip stored in a roll; The film roll driving member is connected to the abutting member and abuts against the edge of the film roll through the abutting member, and the film roll driving member can rotate to drive the film roll to unwind; The film splicing unit is used to clamp and fix the front and rear film strips when replacing the film roll.
6. The continuous filling device according to claim 5, characterized in that: It also includes a film strip buffer unit disposed between the film splicing unit and the film bag forming assembly; The film tape buffer unit includes a plurality of movable conveying rollers distributed on both sides of a first straight line, wherein the rotation axes of the conveying rollers are parallel to each other and perpendicular to the first straight line; wherein the first straight line is a line connecting the feed port and the discharge port of the film tape buffer unit; The film tape is in a Z-shape and passes around the plurality of conveying rollers on both sides of the first straight line in sequence.
7. The continuous filling device according to claim 6, characterized in that: Both ends of the conveying roller are slidably arranged on the guide rail and are connected with independent roller driving components to drive the conveying roller to slide on the guide rail.