Continuous film belt feeding device

Abstract

The utility model provides a continuous film belt feeding device, and belongs to the technical field of film belt feeding. In order to solve the problems that continuous film tape feeding cost is high, operation is inconvenient, follow-up processes are affected, overall production cost is high, and efficiency is low, the continuous film tape feeding device comprises a film rolling unit, a film connecting unit and a film tape buffering unit, and the film rolling unit comprises a film rolling fixing part, a film rolling driving part and an abutting part; the film roll driving part is attached to the edge of the film roll through the abutting part and can rotate to drive the film roll to be unwound, the film connecting unit can clamp a film belt, and the film belt buffering unit comprises a plurality of movable conveying rollers. The film roll is directly driven to be unwound through the film roll driving part, the universality of the film roll unit is improved, the cost is effectively controlled, the operation difficulty is reduced, meanwhile, through cooperation of the film connecting unit and the film belt buffering unit, feeding is not stopped during film connecting, follow-up processes are ensured, the overall production cost is reduced, and the production efficiency is improved. And the overall production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of film strip feeding, and in particular to a continuous film strip feeding device. Background Art

[0002] To shorten film change time, two film rolls, A and B, are typically used during film strip feeding. During operation, only A or B is unwinding. For example, when A is about to run out, the unwinding process switches from A to B. This requires stopping the machine for manual film splicing.

[0003] Although this method shortens the film splicing time by pre-placing the B film roll, firstly, the subsequent process needs to be shut down, affecting the overall production efficiency; secondly, the conventional film roll unwinder uses an unwinding shaft to drive the film roll to rotate and unwind, and the unwinding shaft needs to be customized according to the type of film roll, which is costly, has poor versatility, and is inconvenient to operate. Utility Model Content

[0004] The purpose of this application is to solve the problem in the prior art that continuous film strip feeding is high in cost, inconvenient to operate, and affects subsequent processes, resulting in high overall production costs and low efficiency. Therefore, this application provides a continuous film strip feeding device that directly drives the film roll unwinding through a film roll drive, thereby improving the versatility of the film roll unit, effectively controlling costs, and reducing operational difficulty. At the same time, through the cooperation of the film splicing unit and the film strip buffer unit, it is possible to achieve continuous feeding during film splicing, ensuring the progress of subsequent processes, reducing overall production costs, and improving overall production efficiency.

[0005] The embodiment of the present application provides a film strip continuous feeding device, comprising a film roll unit, a film strip buffer unit, and a film splicing unit connecting the two;

[0006] The film roll unit includes a film roll fixing member, a film roll driving member and an abutting member;

[0007] The film roll fixing member is used to connect the film roll, and the film roll is a film strip stored in a roll;

[0008] 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;

[0009] The film tape of the film roll unit is connected to the feed port of the film tape buffer unit through the film splicing unit, and the film splicing unit can clamp the film tape;

[0010] 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;

[0011] 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.

[0012] 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 be directly adapted to different types of film rolls, has high versatility, effectively controls costs, and is simple to operate by directly pressing against the film roll through the film roll driving member; and, film strip storage is achieved through the multiple conveying rollers in the film strip buffer unit, so that when the film roll unit is unable to feed material during film splicing, the stored material can be released by moving the conveying rollers, thereby achieving continuous, stable and reliable supply of film strips for subsequent processes, reducing overall production costs and improving overall production efficiency.

[0013] 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;

[0014] The extending direction of each guide rail is perpendicular to the first straight line.

[0015] 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 tensioning force, and maintaining the normal progress of the subsequent process; and, by connecting each conveyor roller to an independent roller driving member, independent control and movement of each conveyor roller is achieved, further improving the reliability of the conveyor roller movement; at the same time, by setting the guide rail extension direction perpendicular to the first straight line, ensuring that the conveyor roller moves in a direction perpendicular to the first straight line, reducing the difficulty of controlling the conveyor roller movement distance and the storage material release ratio, and further improving the reliability of the storage material release.

[0016] In some embodiments, there are two film roll units, and the two film roll units are stacked.

[0017] By adopting the above technical solution, two film rolls are provided through two film roll units, which can shorten the film splicing time, improve production efficiency, and reduce the film tape storage length of the film tape buffer unit, thereby controlling the volume of the film tape buffer unit and improving control reliability; at the same time, the stacking arrangement of the two film roll units can control the overall occupied area, and can ensure that the distance between both and the film splicing unit is short, thereby improving the reliability of film tape transportation.

[0018] In some embodiments, the film splicing unit includes a heat sealing device, a first guide assembly disposed between a discharge port of the film roll unit and the heat sealing device, and a second guide assembly disposed between the heat sealing device and a feed port of the film tape buffer unit;

[0019] The first guide assembly includes two first guide rollers arranged opposite to each other;

[0020] The heat sealing device is used to clamp the film strip and heat-seal it into one piece;

[0021] The second guide assembly includes a second guide roller.

[0022] By adopting the above technical solution, the film is clamped and heat-sealed by the heat sealing equipment, and the film-sealing effect is improved by the first guide component and the second guide component, thereby improving the feeding quality and ensuring the production quality.

[0023] In some embodiments, the first guide assembly, the heat sealing device, and the second guide assembly are located on the same straight line.

[0024] In some embodiments, the film roll unit further comprises a mounting platform, and the film roll fixing member is disposed on the mounting platform;

[0025] The abutment member is rotatably arranged on the mounting platform, the film roll driving member is arranged at the end of the abutment member away from the mounting platform, and the abutment member is connected to a torsion spring, which applies a torsional force toward the film roll fixing member to the film roll driving member, so that the film roll driving member has a tendency to fit the edge of the film roll on the film roll fixing member.

[0026] In some embodiments, the abutment member is a pneumatic rod; and the film roll driving member is a motorized roller.

[0027] In some embodiments, the film roll unit further includes a first roller group, a second roller group, and a third roller group sequentially arranged along the film tape conveying direction;

[0028] The first roller group is located below the abutment member and includes two first rollers arranged horizontally side by side;

[0029] The second roller group includes a light sensor and two second rollers respectively provided at both ends of the light sensor;

[0030] The third roller set includes two third rollers that are vertically alternately arranged.

[0031] 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

[0032] Figure 1 This is a schematic structural diagram of an embodiment of the present application;

[0033] Figure 2 This is an enlarged structural diagram of the second roller group in an embodiment of the present application.

[0034] Description of reference numerals:

[0035] 1. Film roll; 2. Film tape;

[0036] 100, film roll unit; 110, film roll fixing member; 120, film roll driving member; 130, abutting member; 140, first roller group; 141, first roller; 150, second roller group; 151, second roller; 152, light sensor; 160, third roller group; 161, third roller; 170, mounting platform;

[0037] 200, film joining unit; 210, heat sealing device; 220, first guide roller; 230, second guide roller;

[0038] 300, film tape buffer unit; 310, conveying roller; 320, guide rail;

[0039] 400, filling unit; 410, filling tube. DETAILED DESCRIPTION

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] See Figure 1 , Figure 1 This is a structural diagram of an embodiment of the present application.

[0047] An embodiment of the present application provides a film tape continuous feeding device, including a film roll unit 100, a film tape buffer unit 300, and a film splicing unit 200 connecting the two.

[0048] In one embodiment, the film roll unit 100 includes a film roll fixing member 110 , a film roll driving member 120 and an abutting member 130 .

[0049] The film roll fixing member 110 is used to connect the film roll 1, which is a rolled film strip 2.

[0050] The film roll driving member 120 is connected to the abutment member 130, 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 130. The film roll driving member 120 and the film roll fixing member 110 can be installed at a certain distance from each other through the abutment member 130, thereby improving the convenience of installation and maintenance, and facilitating the installation of film rolls 1 of different sizes.

[0051] The film roll driving member 120 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 member 120. Compared with the conventional method of driving the film roll 1 to rotate through the film roll fixing member 110, such as the unwinding shaft, it can directly adapt to different types of film rolls 1, has high versatility, effectively controls costs, and can directly abut against the film roll 1 through the film roll driving member 120, which is simple to operate. In addition, the film roll fixing member 110 of the present application is simpler in structure than the film roll fixing member with unwinding function, and the installation of the film roll 1 is also more convenient, which further simplifies the installation operation of the film roll 1.

[0052] 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 2, and the ends are usually also provided with a limit mechanism to limit the two ends of the film roll 1. The drive motor is connected to one end of the unwinding shaft through a transmission gear, which makes the structure complicated, and the limit mechanism needs to be unlocked when installing the film roll, which is inconvenient to operate. However, the present application directly drives the film roll 1 through the film roll driver 120. Therefore, the structure of the film roll fixing member 110 can be relatively simple, for example, only the shaft is installed, and its diameter can be small to adapt to film rolls 2 of various inner diameters, and there can be a certain gap between the two.

[0053] In one embodiment, the film roll unit 100 further includes a mounting platform 170 , and the film roll fixing member 110 is disposed on the mounting platform 170 .

[0054] The abutment member 130 is rotatably mounted on the mounting platform 170, and the film roll driving member 120 is disposed at the end of the abutment member 130 away from the mounting platform 170. Furthermore, a torsion spring is connected to the abutment member 130, which applies a torsional force toward the film roll fixing member 110 to the abutment member 130, so that the film roll driving member 120 has a tendency to adhere to the edge of the film roll 1 on the film roll fixing member 110, that is, to adhere to the outermost surface film of the film roll 1, further improving the convenience of operation.

[0055] Preferably, the abutment member 130 is a pneumatic rod, the length of which can be easily adjusted.

[0056] Preferably, the film roll driving member 120 is a motorized roller.

[0057] In one embodiment, the film strip 2 of the film roll unit 100 passes through the film splicing unit 200 and is connected to the feed port of the film strip buffer unit 300. The film splicing unit 200 can clamp the film strip 2. It is understandable that in order to achieve stable transmission of the film strip 2, a pulling device is provided in the subsequent process to pull the film strip 2 to ensure its reliable transmission throughout the entire process. For example, the present application can be applied to continuous filling. The film strip buffer unit 300 is connected to the filling unit 400. The filling unit 400 is provided with a film bag forming assembly and a filling pipe 410. The film bag forming assembly continuously pulls the continuous film strip and forms a continuous film bag, and then continuously fills the film bag through the filling pipe 410.

[0058] In one embodiment, the film roll unit 100 further includes a first roller set 140 , a second roller set 150 and a third roller set 160 , which are sequentially arranged along the conveying direction of the film tape 2 .

[0059] The first roller set 140 is located below the abutting member 130 and includes two first rollers 141 arranged horizontally side by side to smoothly guide the film tape 2 outputted by the film roll fixing member 110 to the second roller set 150 .

[0060] The third roller set 160 includes two third rollers 161 vertically and alternately arranged to adjust the tension of the film strip so that the film strip can be smoothly fed into the film splicing unit 200 .

[0061] See Figure 2 , Figure 2 Schematic diagram of the enlarged structure of the second roller set 150 in the embodiment of the present application.

[0062] In one embodiment, the second roller set 150 includes a light sensor 152 and two second rollers 151 disposed at both ends of the light sensor 152 .

[0063] It should be noted that the end point of the film strip 2 is usually provided with a ribbon, and is positioned by a light sensor 152. When the ribbon is detected, it is determined that the film roll has been used up, and the next step is to take the next film roll 1.

[0064] In this method, a second roller group 150 for positioning the end of the film strip 2 is provided between the first roller group 140 and the third roller group 160 , which is at a certain distance from the film splicing unit 200 , so as to facilitate access to another film strip 2 for splicing.

[0065] In one embodiment, two film roll units 100 are provided, so that two film rolls 1 can be provided at the same time, avoiding the need to replace and install the film roll 1 when splicing the film, shortening the film splicing time, and improving production efficiency. By shortening the film splicing time, the storage length of the film tape 2 of the film tape buffer unit 300 can also be reduced, thereby controlling the volume of the film tape buffer unit 300 and improving control reliability.

[0066] Preferably, the two film roll units 100 are stacked to control the overall occupied area and ensure that the distance between the two and the film splicing unit 200 is short, thereby improving the reliability of the film tape 2 transportation.

[0067] In one embodiment, the film tape buffer unit 300 includes a plurality of movable conveying rollers 310 distributed on both sides of a first straight line, wherein the rotation axes of the conveying rollers 310 are parallel to each other and perpendicular to the first straight line. The first straight line is a line connecting the inlet and outlet of the film tape buffer unit 300.

[0068] The film tape 2 is Z-shaped and passes around the multiple conveying rollers 310 on both sides of the first straight line in sequence, so that the film tape 2 in the film tape buffer unit 300 is released through the movement of each conveying roller 310, thereby realizing continuous feeding.

[0069] For example, the film tape buffer unit 300 may have a first state and a second state, wherein:

[0070] In the first state, the film splicing unit 200 is not clamped, and the plurality of conveying rollers 310 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 300 at a preset tension.

[0071] In the second state, the film splicing unit 200 is clamped, and at least one conveying roller 310 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 300 while maintaining a preset tension.

[0072] This method realizes the storage of film tape 2 through multiple conveying rollers 310 in the film tape buffer unit 300, so that when the film roll unit 100 is unable to feed material, such as when splicing the film or maintaining the components, the conveying rollers 310 are moved to release the stored material, thereby achieving the continuous, stable and reliable supply of film tape 2 for subsequent processes within a certain period of time, reducing the overall production cost and improving the overall production efficiency.

[0073] In one embodiment, both ends of the conveying roller 310 are slidably disposed on the guide rail 320 and are connected to independent roller driving members to drive the conveying roller 310 to slide on the guide rail 320 .

[0074] This method improves the movement reliability of the conveying roller 310 through the guide rail 320, 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 progress of subsequent processes.

[0075] Furthermore, by connecting each conveying roller 310 to an independent roller driving member, each conveying roller 310 can be independently controlled and moved, thereby further improving the movement reliability of the conveying roller 310 .

[0076] In one embodiment, the extension direction of each guide rail 320 is perpendicular to the first straight line, thereby ensuring that the conveying roller 310 moves in a direction perpendicular to the first straight line, reducing the difficulty of controlling the moving distance of the conveying roller 310 and the storage material release ratio, and further improving the reliability of storage material release.

[0077] In one embodiment, the film splicing unit 200 includes a heat sealing device 210, a first guide assembly arranged between the discharge port of the film roll unit 100 and the heat sealing device 210, and a second guide assembly arranged between the heat sealing device 210 and the feed port of the film tape buffer unit 300.

[0078] The first guide assembly includes two first guide rollers 220 arranged opposite to each other.

[0079] 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 in the first state, and to guide the two film strips 2 output by the film roll unit 100 to the heat sealing device 210 in the second state, and 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.

[0080] That is, in the first state, 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. In the second state, the two first guide rollers 220 are clamped, for example, by relative movement to achieve clamping. 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 clamped, they can also roll and convey the film strip 2 forward.

[0081] Since the film strip 2 is not exhausted in the first state and does not need to be spliced, the heat sealing device 210 does not clamp the film strip 2 to allow it to pass smoothly. The first guide roller 220 only needs to guide the film strip 2 to the heat sealing device 210 to improve the smooth passage of the film strip 2. In the second state, the film strip 2 is about to be exhausted and needs to be spliced. The two first guide rollers 220 clamp the two film strips 2 so that the two film strips 2 overlap, that is, the surfaces are in contact, which improves the accuracy of the two film strips 2 docking, thereby improving the splicing effect of the subsequent heat sealing device 210.

[0082] The heat sealing device 210 is used to clamp and heat-seal the film strips 2 into one piece, for example, in the second state, the two film strips 2 are clamped and heat-sealed into one piece at the parts of the heat sealing device 210 .

[0083] The second guide assembly includes a second guide roller 230 , and the second guide roller 230 is used to guide the film tape 2 at the discharge port of the heat sealing device 210 to the feed port of the film tape buffer unit 300 .

[0084] This method achieves clamping and heat-sealing the film through the heat-sealing device 210, 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.

[0085] In one embodiment, the first guide assembly, the heat sealing device 210 and the second guide assembly are located on the same straight line, thereby ensuring as much as possible that the two film strips 2 of the heat-sealed film portion are in a uniform flattened state, further improving the film sealing effect, thereby improving the feeding quality and ensuring production quality.

[0086] 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 film feeding device, characterized in that: It includes a film roll unit, a film tape buffer unit and a film splicing unit connecting the two; 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 tape of the film roll unit is connected to the feed port of the film tape buffer unit through the film splicing unit, and the film splicing unit can clamp the film tape; 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.

2. The film strip continuous feeding device according to claim 1, characterized in that: Both ends of the conveying roller are slidably arranged on the guide rail and are connected to independent roller driving members to drive the conveying roller to slide on the guide rail; The extending direction of each guide rail is perpendicular to the first straight line.

3. The film strip continuous feeding device according to claim 1, characterized in that: There are two film roll units, and the two film roll units are stacked.

4. The film strip continuous feeding device according to claim 3, characterized in that: The film splicing unit includes a heat sealing device, a first guide assembly arranged between the discharge port of the film roll unit and the heat sealing device, and a second guide assembly arranged between the heat sealing device and the feed port of the film tape buffer unit; The first guide assembly includes two first guide rollers arranged opposite to each other; The heat sealing device is used to clamp the film strip and heat-seal it into one piece; The second guide assembly includes a second guide roller.

5. The film strip continuous feeding device according to claim 4, characterized in that: The first guide assembly, the heat sealing device and the second guide assembly are located on the same straight line.

6. The film strip continuous feeding device according to claim 1, characterized in that: The film roll unit further includes a mounting platform, and the film roll fixing member is arranged on the mounting platform; The abutment member is rotatably arranged on the mounting platform, the film roll driving member is arranged at the end of the abutment member away from the mounting platform, and the abutment member is connected to a torsion spring, which applies a torsional force toward the film roll fixing member to the film roll driving member, so that the film roll driving member has a tendency to fit the edge of the film roll on the film roll fixing member.

7. The film strip continuous feeding device according to claim 1, characterized in that: The abutment member is a pneumatic rod; and the film roll driving member is an electric roller.

8. The film strip continuous feeding device according to claim 1, characterized in that: The film roll unit further comprises a first roller group, a second roller group and a third roller group arranged in sequence along the film tape conveying direction; The first roller group is located below the abutment member and includes two first rollers arranged horizontally side by side; The second roller group includes a light sensor and two second rollers respectively provided at both ends of the light sensor; The third roller set includes two third rollers that are vertically alternately arranged.

Images