Film connecting mechanism suitable for film supporting and releasing device

Abstract

The utility model discloses a film connecting mechanism suitable for a film supporting and releasing device, and relates to the technical field of film packaging machines. The film connecting device comprises a film connecting plate which plays a supporting role in the film connecting process, a film connecting roller assembly which is arranged opposite to the film connecting plate, and a film connecting driving assembly which drives the film connecting roller assembly to be pressed on the film connecting plate and move along the film connecting plate. A packaging film of the standby film roll is connected to the film connecting roller to wait for film connecting, the packaging film connected to the packaging machine penetrates through the position between the film connecting roller and the film connecting plate, and after the packaging film connected to the packaging machine is completely released, the film connecting driving assembly drives the film connecting roller to be pressed on the film connecting plate and move relative to the film connecting plate in the packaging film conveying direction. The standby packaging film on the film connecting roller is attached to the packaging film connected into the packaging machine, and the film connecting operation of the two packaging film rolls is completed. The film connecting mechanism is simple in structure, the film connecting action of two packaging film rolls can be stably achieved, the film connecting success rate is high, and the film connecting efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of film packaging machine machinery, in particular to the technical field of film supporting and placing devices in film packaging machines, and more specifically to a film joining mechanism suitable for the film supporting and placing devices. Background Art

[0002] Existing film supporting and placing devices for packaging machines all use a pair of relatively fixed film supporting rollers to support the film roll, and the film supporting rollers are connected to a power source. The film supporting rollers rotate to drive the film roll above them to rotate, thereby realizing the film supporting and placing functions.

[0003] After the film roll on the existing film supporting and placing device is finished, it needs to be manually spliced ​​and replaced with a new film roll. For example, the publication number is CN206813429U, the announcement date is December 29, 2017, and the name is a utility model patent for a film feeding device for a packaging machine. The utility model patent includes a film supporting mechanism, a film splicing mechanism and a film placing mechanism, and the film supporting mechanism is arranged below the film splicing mechanism. The film splicing mechanism of the utility model patent is only a film splicing plate, which is convenient for workers to manually splice the film.

[0004] There are also some automatic film splicing mechanisms in the prior art, but these automatic film splicing mechanisms are suitable for film placing devices with powered film-threading shafts, and cannot be used for automatic film splicing of film-supporting devices. Utility Model Content

[0005] In order to overcome the defects and shortcomings in the above-mentioned prior art, the utility model provides a film splicing mechanism suitable for a film supporting device. The invention purpose of the utility model is to provide an automatic film splicing mechanism suitable for a film supporting device to improve the film splicing efficiency of the existing film supporting device. The film splicing mechanism of the utility model includes a film splicing plate that plays a supporting role in the film splicing process, a film splicing roller assembly arranged opposite to the film splicing plate, and a film splicing driving assembly that drives the film splicing roller assembly to be pressed onto the film splicing plate and moves along the film splicing plate. The packaging film of the spare film roll is connected to the film splicing roller to wait for film splicing, and the packaging film connected to the packaging machine passes between the film splicing roller and the film splicing plate. After the packaging film connected to the packaging machine is released, the film splicing driving assembly drives the film splicing roller to be pressed onto the film splicing plate and moves relative to the film splicing plate along the packaging film conveying direction, so that the spare packaging film on the film splicing roller is attached to the packaging film connected to the packaging machine, and the film splicing operation of the two packaging film rolls is completed. The film splicing mechanism of the utility model has a simple structure, can stably realize the film splicing action of the two packaging film rolls, has a high film splicing success rate, and has a high film splicing efficiency.

[0006] In order to solve the above problems existing in the prior art, the utility model is implemented through the following technical solutions.

[0007] The utility model provides a film splicing mechanism suitable for a film supporting device, comprising a film splicing plate, a film splicing roller assembly arranged opposite to the film splicing plate, and a film splicing driving assembly connected to the film splicing roller assembly and driving the film splicing roller assembly to be pressed onto the film splicing plate and move along the film splicing plate to complete the film splicing action.

[0008] The working principle of the utility model is as follows: the packaging film of the spare film roll is connected (the packaging film of the spare film roll can be relatively fixed on the film splicing roller assembly by pasting or by pressing the film with an auxiliary film pressing rod) and waits for film splicing on the film splicing roller assembly, and the packaging film connected to the packaging machine passes between the film splicing roller and the film splicing plate. When the packaging film connected to the packaging machine is released, the film splicing driving assembly drives the film splicing roller assembly to press the packaging film on the film splicing plate (that is, the packaging film connected to the packaging machine), and moves relative to the film splicing plate along the packaging film conveying direction, so that the spare packaging film on the film splicing roller is attached to the packaging film connected to the packaging machine (that is, the spare packaging film is rolled on the packaging film connected to the packaging machine, and the combination of the two is bonded by double-sided tape), completing the film splicing operation of the two packaging film rolls.

[0009] Further preferably, mounting plates for assembling the film bonding drive assembly are provided on both sides of the film bonding plate.

[0010] Further preferably, the film bonding drive assembly includes a close cylinder and a rolling cylinder, the close cylinder drives the film bonding roller assembly to be attached to the film bonding plate, and the rolling cylinder drives the film bonding roller assembly to move a set distance along the film bonding plate.

[0011] More preferably, the film joining roller assembly includes at least one main film joining roller, connecting seats are provided at both ends of the main film joining roller, and the film joining drive assembly is connected to the connecting seats.

[0012] More preferably, the connecting seat is connected to the protruding end of the rolling cylinder; the rolling cylinder is connected to the protruding end of the close cylinder, and the close cylinder is fixedly assembled on the mounting plate.

[0013] More preferably, a slide rail is provided on the mounting plate, and a sliding block which slides in cooperation with the slide rail is provided on one side of the rolling cylinder.

[0014] Further preferably, the film joining roller assembly includes a main film joining roller and an auxiliary film joining roller, and the main film joining roller and the auxiliary film joining roller are arranged parallel to the packaging film conveying direction, and when the film joining roller assembly is pressed onto the film joining plate, the main film joining roller and the auxiliary film joining roller are both pressed onto the film joining plate.

[0015] More preferably, a mounting seat is provided close to the protruding end of the cylinder, the end of the auxiliary film-joining roller is mounted on the mounting seat, the rolling cylinder is assembled on the mounting seat, and the end of the main film-joining roller is assembled on the protruding end of the rolling cylinder through a connecting seat.

[0016] More preferably, an auxiliary film pressing rod is provided on one side of the main film receiving roller, and the auxiliary film pressing rod is assembled on the connecting seat through a rocker rod.

[0017] Further preferably, a film roll detection electric eye is provided at one end of the film splicing plate for inputting the packaging film.

[0018] Compared with the prior art, the beneficial technical effects brought by the utility model are as follows:

[0019] 1. The film splicing mechanism of the utility model can realize automatic film splicing, has a simple structure, can stably realize the film splicing action of two packaging film rolls, has a high film splicing success rate, and has high film splicing efficiency.

[0020] 2. The film splicing drive assembly of the utility model realizes the film splicing action by combining a close cylinder and a rolling cylinder, and its structure is stable in operation and low in cost.

[0021] 3. In the utility model, the main film joining roller can perform a rolling operation to tightly adhere the packaging film to be joined to the packaging film connected to the packaging machine, thereby achieving stable film joining, a high success rate of film joining, and no film falling off after joining. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the film joining mechanism of the utility model;

[0023] Figure 2 This is a reference diagram of the use state of the film joining mechanism of the utility model;

[0024] Figure 3 For this utility model Figure 2 Side view of

[0025] Figure numerals: 1. film joining plate, 2. film joining roller assembly, 3. film joining drive assembly, 4. spare film roll, 5. film roll connected to the packaging machine, 6. mounting plate, 7. close cylinder, 8. rolling cylinder, 9. main film joining roller, 10. connecting seat, 11. slide rail, 12. slide block, 13. auxiliary film joining roller, 14. mounting seat, 15. auxiliary film pressing rod, 16. rocker arm, 17. film roll detection electric eye. DETAILED DESCRIPTION

[0026] The following are exemplary embodiments of the present invention that are combined with the accompanying drawings to help fully understand the claims and their equivalents, wherein the specific details are only considered as exemplary and do not limit the scope of the present invention. Therefore, those of ordinary skill in the art can make various changes and modifications to the embodiments without departing from the scope and spirit of the present invention.

[0027] Example 1

[0028] As a preferred embodiment of the present invention, refer to the attached specification Figure 1 and attached Figure 2 As shown, this embodiment discloses a film joining mechanism suitable for a film supporting device, including a film joining plate 1, a film joining roller assembly 2 arranged opposite to the film joining plate 1, and a film joining drive assembly 3 which is connected to the film joining roller assembly 2 and drives the film joining roller assembly 2 to be pressed on the film joining plate 1 and move along the film joining plate 1 to complete the film joining action.

[0029] Refer to the instruction manual Figure 2 and attached Figure 3 As shown, the film splicing mechanism is arranged above the film supporting device, and the film supporting device is provided with a spare film roll 4 and a film roll 5 connected to the packaging machine. The film roll 5 connected to the packaging machine releases the roll film, passes between the film splicing plate 1 and the film splicing roller assembly 2, and then enters the packaging machine through the film pulling mechanism. At this time, the roll film released by the spare film roll 4 is fixed on the film splicing roller assembly 2, waiting for film splicing.

[0030] After the film roll 5 connected to the packaging machine is released, the film splicing process is started. At this time, the film splicing driving component 3 drives the film splicing roller component 2 to approach the film splicing plate 1 and press it on the film splicing plate 1, so that the film roll released by the spare film roll 4 on the film splicing roller component 2 contacts the film roll released by the film roll 5 connected to the packaging machine, and then the film splicing driving component 3 drives the film splicing roller component 2 to move relative to the film splicing plate 1 (the moving direction is consistent with the packaging film conveying direction), and through the rolling of the film splicing roller component 2, the film roll 4 is tightly bonded to the film roll 5 connected to the packaging machine, thereby completing the film splicing action.

[0031] In this embodiment, the film splicing roller assembly 2 is driven by the film splicing driving assembly 3 to move along the film splicing plate 1, thereby achieving rolling and bonding of the film of the spare film roll 4, so that the film of the spare film roll 4 is more firmly bonded to the film of the film roll 5 connected to the packaging machine.

[0032] In this embodiment, when the roll film of the spare film roll 4 is waiting for film splicing on the film splicing roller assembly 2, the roll film is wound on the film splicing roller assembly 2. After the film splicing roller assembly 2 moves relative to the film splicing plate 1, the part of the roll film wound on the film splicing roller assembly 2 can be pressed onto the roll film on the film splicing plate 1 to ensure stable adhesion between the two.

[0033] Example 2

[0034] As another preferred embodiment of the present utility model, this embodiment is a further detailed supplement and elaboration of the technical solution of the present utility model based on the above-mentioned embodiment 1.

[0035] As an example of this embodiment, the film splicing roller assembly 2 and the film splicing driving assembly 3 can be relatively arranged on the film splicing plate 1 through independent mounting seats 14 / mounting frames / frames, etc., which will increase the equipment cost.

[0036] The preferred implementation method given in this embodiment is that mounting plates 6 for assembling the film-bonding driving assembly 3 are provided on both sides of the film-bonding plate 1, thereby providing stable support and reducing the cost of the sheet metal frame.

[0037] As an example of this embodiment, the movement of the film bonding roller assembly 2 relative to the film bonding plate 1 can be set by providing a combination of a straight segment guide rail and an arc guide rail on the mounting plate 6 (not shown in the figure), so that a film bonding drive mechanism (a cylinder) can be used to realize the movement of the film bonding roller assembly 2 approaching the film bonding plate 1 and moving relative to the film bonding plate 1.

[0038] As another example of this embodiment, the movement of the film bonding roller assembly 2 relative to the film bonding plate 1 can be limited by setting a cam groove on the mounting plate 6, so that a film bonding drive mechanism (a cylinder) can be used to realize the movement of the film bonding roller assembly 2 approaching the film bonding plate 1 and moving relative to the film bonding plate 1.

[0039] In the above two embodiments, no matter whether it is the guide rail or the cam groove structure, it is difficult to adjust the pressing force of the film bonding roller assembly 2 on the film bonding plate 1. Since the trajectory of the guide rail or the cam groove is fixed after assembly, that is, the moving trajectory of the film bonding roller assembly 2 is fixed, if the pressing force of the film bonding roller assembly 2 relative to the film bonding plate 1 is to be adjusted, the guide rail or the cam groove needs to be replaced or its position changed, which is difficult to adjust.

[0040] In order to facilitate the control and adjustment of the pressing force of the film bonding roller assembly 2 on the film plate 1, this embodiment provides a preferred solution. Figure 1 and attached Figure 2 As shown, in this embodiment, the film bonding drive assembly 3 includes a proximity cylinder 6 and a rolling cylinder 8, the proximity cylinder 6 drives the film bonding roller assembly 2 to fit on the film bonding plate 1, and the rolling cylinder 8 drives the film bonding roller assembly 2 to move a set distance along the film bonding plate 1.

[0041] The two-stage action of the film splicing roller assembly 2 is realized by two cylinders. The pressing force of the film splicing roller assembly 2 relative to the film splicing plate 1 is adjustable and easy to adjust. The moving distance of the film splicing roller assembly 2 relative to the film splicing plate 1 is also easy to adjust.

[0042] Example 3

[0043] As another preferred embodiment of the present utility model, this embodiment is a further detailed supplement and elaboration of the technical solution of the present utility model on the basis of the above-mentioned embodiment 1 or embodiment 2.

[0044] As an example of this embodiment, the film-joining roller assembly 2 includes a main film-joining roller 9, and connecting seats 10 are provided at both ends of the main film-joining roller 9, and the film-joining driving assembly 3 is connected to the connecting seats 10. The combination of the above-mentioned embodiment 2 is that the connecting seat 10 is connected to the protruding end of the rolling cylinder 8; the rolling cylinder 8 is connected to the protruding end of the close cylinder 6, and the close cylinder 6 is fixedly assembled on the mounting plate 6. In order to further ensure the stable operation of the film-joining roller assembly 2, a slide rail 11 is provided on the mounting plate 6, and a slider 12 that slides with the slide rail 11 is provided on one side of the rolling cylinder 8.

[0045] As another example of this embodiment, refer to the attached Figure 1 and attached Figure 2 As shown, the film joining roller assembly 2 includes a main film joining roller 9 and an auxiliary film joining roller 13. The main film joining roller 9 and the auxiliary film joining roller 13 are arranged in parallel along the packaging film conveying direction. When the film joining roller assembly 2 is pressed onto the film joining plate 1, the main film joining roller 9 and the auxiliary film joining roller 13 are both pressed onto the film joining plate 1.

[0046] The main film bonding roller 9 and the auxiliary film bonding roller 13 in the film bonding roller assembly 2 can be relatively fixed, that is, they can move synchronously, and both the main film bonding roller 9 and the auxiliary film bonding roller 13 are arranged on the connecting seat 10 .

[0047] A more preferred solution is that a mounting seat 14 is provided near the protruding end of the cylinder 6, the end of the auxiliary film-joining roller 13 is mounted on the mounting seat 14, the rolling cylinder 8 is assembled on the mounting seat 14, and the end of the main film-joining roller 9 is assembled on the protruding end of the rolling cylinder 8 through the connecting seat 10. That is, the auxiliary film-joining roller 13 is pressed on the film-joining plate 1 and does not move, and the film roll of the spare film roll 4 and the film roll 5 connected to the packaging machine can be relatively fixed, and then the main film-joining roller 9 rolls and presses the two film rolls to make them bonded together. Avoid relative movement of the two film rolls when the main film-joining roller 9 presses the two film rolls, resulting in poor film-joining effect or film-joining failure. At this time, the auxiliary film-joining roller 13 can be replaced with a pressing plate.

[0048] As an implementation method of this embodiment, an auxiliary film pressing rod 15 is provided on one side of the main film connecting roller 9, and the auxiliary film pressing rod 15 is assembled on the connecting seat 10 through a swing rod 16. By providing the auxiliary film pressing rod 15, the film of the spare film roll 4 can be pressed on the main film connecting roller 9, and there is no need to stick or wrap the film of the spare film roll 4 on the main film connecting roller 9, so as to avoid the situation that the film is difficult to separate from the main film connecting roller 9. It is also convenient to fix the film of the spare film roll 4 relatively on the main film connecting roller 9.

[0049] The above-mentioned film splicing action can be a key operation. For example, when film splicing is required, the operator presses a film splicing start button to perform film splicing.

[0050] A more preferred solution is that a film roll detection electric eye 17 is provided at one end of the film splicing plate 1 for inputting the packaging film. When the film roll detection electric eye 17 detects the tail of the film roll, that is, it indicates that the film roll 5 connected to the packaging machine has been released, the film splicing program needs to be started, and the film roll detection electric eye 17 gives a signal to automatically splice the film.

[0051] While the inventive concept has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made thereto without departing from the spirit and scope of the invention as defined in the claims.

Claims

1. A film splicing mechanism suitable for a film supporting device, comprising a film splicing plate (1), characterized in that: It also includes a film splicing roller assembly (2) arranged opposite to the film splicing plate (1), and a film splicing drive assembly (3) connected to the film splicing roller assembly (2) and driving the film splicing roller assembly (2) to press the film splicing plate (1) and move along the film splicing plate (1) to complete the film splicing action.

2. A film splicing mechanism suitable for a film supporting device as claimed in claim 1, characterized in that: Mounting plates (6) for assembling the film-joining drive assembly (3) are provided on both sides of the film-joining plate (1).

3. A film splicing mechanism suitable for a film supporting device as claimed in claim 1 or 2, characterized in that: The film bonding drive assembly (3) comprises a close cylinder (7) and a rolling cylinder (8), wherein the close cylinder (7) drives the film bonding roller assembly (2) to be bonded to the film bonding plate (1), and the rolling cylinder (8) drives the film bonding roller assembly (2) to move a set distance along the film bonding plate (1).

4. A film splicing mechanism suitable for a film supporting device as claimed in claim 3, characterized in that: The film joining roller assembly (2) comprises at least one main film joining roller (9), connecting seats (10) are provided at both ends of the main film joining roller (9), and the film joining drive assembly (3) is connected to the connecting seats (10).

5. A film splicing mechanism suitable for a film supporting device as claimed in claim 4, characterized in that: The connecting seat (10) is connected to the protruding end of the rolling cylinder (8); the rolling cylinder (8) is connected to the protruding end of the close cylinder (7), and the close cylinder (7) is fixedly assembled on the mounting plate (6).

6. A film splicing mechanism suitable for a film supporting device as claimed in claim 5, characterized in that: A slide rail (11) is provided on the mounting plate (6), and a sliding block (12) that slides in cooperation with the slide rail (11) is provided on one side of the rolling cylinder (8).

7. A film splicing mechanism suitable for a film supporting device as claimed in claim 3, characterized in that: The film joining roller assembly (2) comprises a main film joining roller (9) and an auxiliary film joining roller (13), wherein the main film joining roller (9) and the auxiliary film joining roller (13) are arranged in parallel along the conveying direction of the packaging film, and when the film joining roller assembly (2) is pressed onto the film joining plate (1), the main film joining roller (9) and the auxiliary film joining roller (13) are both pressed onto the film joining plate (1).

8. A film splicing mechanism suitable for a film supporting device as claimed in claim 7, characterized in that: A mounting seat (14) is provided at the protruding end of the cylinder (7), an end of the auxiliary film-joining roller (13) is mounted on the mounting seat (14), the rolling cylinder (8) is assembled on the mounting seat (14), and an end of the main film-joining roller (9) is assembled on the protruding end of the rolling cylinder (8) via a connecting seat (10).

9. A film splicing mechanism suitable for a film supporting device as claimed in claim 4, characterized in that: An auxiliary film pressing rod (15) is provided on one side of the main film receiving roller (9), and the auxiliary film pressing rod (15) is assembled on the connecting seat (10) via a swing rod (16).

10. A film splicing mechanism suitable for a film supporting device as claimed in claim 1 or 2, characterized in that: A film roll detection electric eye (17) is provided at one end of the film splicing plate (1) for inputting the packaging film.

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