An automatic film changing device for cigarette packaging film

Abstract

This utility model discloses an automatic film changing device for cigarette packaging film, characterized by: a frame containing two sets of film supply devices symmetrically arranged vertically. The upper film supply device includes two film supply rollers with one end suspended, a guide roller group positioned above the two film supply rollers, two symmetrically arranged swing plate devices positioned above the guide roller group, and a film pulling roller positioned on the same side of the guide roller group. A film pulling roller drive motor is located on the outside of the frame. The guide roller group includes four guide rollers arranged parallel to each other on the same plane and two sets of film-sorting roller groups symmetrically arranged in the middle. The film-sorting roller groups are located below the guide rollers. Each film supply roller can hold two rolls of packaging film, and a partition is provided in the middle of each set of film-sorting roller groups. This utility model, through two dual film supply devices symmetrically arranged on the frame, enables continuous packaging, greatly improving sorting and packaging efficiency and reducing working time.

Description

Technical Field

[0001] This application relates to the field of cigarette packaging equipment technology, specifically to an automatic cigarette packaging film changing device. Background Technology

[0002] A tobacco logistics and distribution center is a unit responsible for the operation and management of logistics operations such as cigarette warehousing, sorting, transshipment, delivery, and packaging recycling. It undertakes the cigarette distribution business for various tobacco retailers. At the tobacco logistics and distribution center, cigarettes produced by various cigarette factories are sorted according to the orders of various retailers, packaged into parcels with packaging film, and then delivered to various retailers by logistics vehicles.

[0003] Currently, the packaging film equipment used can only load one roll of packaging film at a time. After use, the machine needs to be stopped and a new roll of packaging film needs to be loaded. This interrupts the sorting and packaging process, resulting in low sorting and packaging efficiency and extending the working time of workers.

[0004] Our company previously applied for patent application number CN202421072043.6, entitled "A Film-Joining Mechanism for a Heat Shrink Film Packaging Machine," which includes a raised platform with an upper extension plate fixed to its upper end, and an installation mechanism. A motor drives a rotating shaft to rotate, causing a three-branch rotating frame to rotate. When the branch of the three-branch rotating frame carrying an empty roll core touches the unloading button, the unloading electric push rod drives the push block to extend outward, unloading the roll core from the loading roller. When another roll of heat shrink film is used up, the motor drives the three-branch rotating frame to rotate again. When the branch pressing the unloading button disengages from the button, the unloading electric push rod drives the push block to retract. At this time, the unloaded loading roller moves to the rear of the container rack with the rotation of the three-branch rotating frame. Simultaneously, this branch of the three-branch rotating frame presses the feeding button, causing the feeding electric push rod to retract the feeding plate, allowing the feeding plate to push new roll cores and heat shrink film rolls from the container rack onto the empty loading roller. This ensures good continuity of the device. However, it is not very convenient in actual use. Utility Model Content

[0005] In view of this, this application provides an automatic film changing device for cigarette packaging film. By using two dual film supply devices symmetrically arranged on the frame, continuous packaging can be achieved, which greatly improves the efficiency of sorting and packaging and reduces working time.

[0006] According to one aspect of this application, one embodiment provides an automatic film changing device for cigarette packaging film, including a frame. Two sets of film supply devices are symmetrically arranged vertically within the frame. The upper film supply device includes two film supply rollers with one end suspended, a guide roller group arranged above the two film supply rollers, two symmetrically arranged swing plate devices arranged above the guide roller group, and a film pulling roller arranged on the same side of the guide roller group. A film pulling roller drive motor is arranged on the outside of the frame. The guide roller group includes four guide rollers arranged parallel to each other on the same plane and two sets of film straightening roller groups arranged symmetrically in the middle. The film straightening roller groups are located below the guide rollers. Each film supply roller can hold two rolls of packaging film. A partition is provided in the middle of each set of film straightening roller groups to separate the two rolls of packaging film and prevent them from overlapping.

[0007] Furthermore, a film supply roller drive motor is also provided at one end of the film supply roller connected to the frame. The film supply roller motor is located on the outside of the frame, on the same side of the frame as the film pulling roller drive motor.

[0008] Furthermore, the surface of the film supply roller is provided with convex strips evenly distributed around its circumference to increase the friction between it and the packaging film roll core cylinder.

[0009] Furthermore, a film roll shaft is provided on the frame at the suspended end of the film supply roller for quickly installing packaging film rolls onto the film supply roller.

[0010] Furthermore, the guide roller is an optical axis roller.

[0011] Furthermore, the film-forming roller assembly has two rollers, one coarse and one fine, and the surface of the rollers has a rubber layer to increase the friction with the packaging film.

[0012] Furthermore, the swing plate device includes a swing plate, a swing cylinder disposed in the middle of the swing plate, guide holes provided on both sides of the swing cylinder on the swing plate, a guide shaft sliding through the guide holes, and the guide shaft and the piston head of the swing cylinder are disposed on the frame.

[0013] Furthermore, the film-pulling roller drive motor and the grinding roller drive motor are pneumatic motors, and the film-pulling roller drive motor is a pneumatic motor with a reducer for rotational drive.

[0014] Furthermore, the frame is equipped with an electronic pneumatic solenoid valve assembly to supply air to each air-using device and control the operation of the air-using device.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. The present invention relates to an automatic film changing device for cigarette packaging film. By symmetrically arranging two sets of film supply devices in the upper and lower parts of the frame, the alternating supply of packaging film is realized. After the packaging film of one set of film supply devices is used up, the device can be immediately switched to another set of film supply devices to supply film, without stopping the machine to change the film roll. This greatly improves the efficiency of cigarette production and effectively avoids the production interruption problem caused by traditional machine stoppage for film changing.

[0017] 2. The present invention provides an automatic film changing device for cigarette packaging film. The film feeding roller group and the partition in the middle of the roller group can effectively separate the two rolls of packaging film on the film feeding roller, prevent the two rolls of packaging film from overlapping or shifting during the conveying process, ensure that the packaging film is conveyed flat and orderly, and improve the packaging quality of cigarette packs.

[0018] 3. The present invention provides an automatic film changing device for cigarette packaging film, which uses a pneumatic motor as the driving component for the film pulling roller and the film feeding roller. It meets the explosion-proof requirements of the cigarette production environment, improves the safety of equipment use, and the pneumatic motor has a simple structure and low maintenance cost, reducing the later maintenance costs of the equipment. The film pulling roller drive motor is equipped with a reducer angle drive, which can accurately control the conveying speed of the packaging film and ensure that it matches the production speed of subsequent packaging processes. Attached Figure Description

[0019] Figure 1 This is a side view of the structure of this utility model;

[0020] Figure 2 This is a front view structural diagram of the present utility model;

[0021] Figure 3 This is a cross-sectional view of the film supply roller of this utility model;

[0022] Figure 4 This is a cross-sectional view of the roller shaft of the film-forming roller assembly of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the film-pulling roller of this utility model.

[0024] In the diagram: 1. Frame; 2. Film feeding roller; 3. Raised bar; 4. Film feeding roller motor; 5. Guide roller; 6. Film feeding roller assembly; 7. Roller shaft; 8. Rubber layer; 9. Partition; 10. Film pulling roller; 11. Rubber roller ring; 12. Film pulling roller drive motor; 13. Swing plate; 14. Swing cylinder; 15. Guide rod; 16. Film roll shaft; 17. Electro-pneumatic solenoid valve assembly. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0026] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0027] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0028] Example:

[0029] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 According to one aspect of this application, one embodiment provides an automatic film changing device for cigarette packaging film, including a frame 1, wherein two sets of film supply devices are symmetrically arranged vertically within the frame 1.

[0030] The upper film supply device includes two film supply rollers 2 with one end suspended. Each film supply roller 2 can be equipped with two rolls of packaging film. The surface of the film supply roller 2 is evenly provided with raised strips 3 to increase the friction with the packaging film core cylinder. The film supply roller motor 4 is located on the outside of the frame 1.

[0031] A film roll shaft 16 is provided on the frame 1 at one of the suspended ends of the film supply roller 2. The film roll shaft 16 is a rubber roller that can rotate around its axis and is used to quickly install packaging film rolls onto the film supply roller 2.

[0032] A guide roller group is set on the upper part of the two film supply rollers 2. The guide roller group includes four guide rollers 5 arranged parallel to each other on the same plane and two sets of film sorting roller groups 6 arranged symmetrically in the middle. The guide rollers 5 are smooth rollers with a smooth surface, which can seal and damage the packaging film.

[0033] The film-feeding roller assembly 6 is located below the guide roller 5. The film-feeding roller assembly 6 has two rollers 7, one coarse and one fine. The surface of the rollers 7 has a rubber layer 8 to increase the friction with the packaging film. A partition 9 is provided in the middle of each film-feeding roller assembly 6. The partition 9 passes through the middle part of the fine roller 7 and contacts the middle part of the coarse roller 7. The two rollers 7 of the film-feeding roller assembly 6 are not covered with the rubber layer 8 at the partition. The partition 9 separates the two rolls of packaging film to prevent them from overlapping.

[0034] The guide roller assembly has two symmetrically arranged swing plate devices. Each swing plate device includes a swing plate 13 and a swing cylinder 14 located in the middle of the swing plate 13. The swing plate 13 has guide holes on both sides of the swing cylinder 14. A guide shaft 15 slides through the guide holes. The guide shaft 15 and the piston head of the swing cylinder 14 are mounted on the frame 1.

[0035] The film-pulling roller 10 is located on the same side of the guide roller group. The surface of the film-pulling roller 10 is provided with a plurality of rubber roller rings 11 to increase the tension of the packaging film. The film-pulling roller 10 is provided with a film-pulling roller drive motor 12 on the outside of the frame. The film-pulling roller drive motor 12 and the film-feeding roller motor 4 are located on the same side of the frame 1.

[0036] The film-pulling roller drive motor 12 and the grinding roller motor 4 are pneumatic motors, and the film-pulling roller drive motor 12 is a pneumatic motor with a reducer for rotational drive.

[0037] The frame 1 is equipped with an electronic pneumatic solenoid valve group 17, which supplies air to the film supply roller motor 4, the film pulling roller drive motor 12 and the swing cylinder 14, and controls their operation.

[0038] This utility model discloses an automatic film changing device for cigarette packaging film. During operation, the packaging film rolls are first installed on the supply rollers of two sets of film supply devices via film roll shafts, with two rolls of packaging film installed on each supply roller. In the initial working state, the upper film supply device can be selected for film supply. The film pulling roller drive motor and the upper film supply device's supply roller drive motor are started. The film pulling roller begins to rotate under the action of the drive motor, pulling the packaging film forward. The supply rollers rotate synchronously under the action of the drive motor, conveying the packaging film towards the film pulling roller.

[0039] During the conveying process, the packaging film first undergoes initial guidance by the guide rollers of the guide roller group, and then passes through the film-sorting roller group. Because the film-sorting roller group has a partition in the middle, it separates the two rolls of packaging film on the supply roller, effectively preventing them from overlapping. Subsequently, the packaging film passes through a swing plate device. The swing cylinder drives the swing plate to swing along the guide shaft according to actual packaging needs, fine-tuning the conveying path and angle of the packaging film to ensure it accurately enters subsequent packaging processes.

[0040] When the packaging film in the upper film supply unit is about to run out, the drive motors for the film pulling roller and the film supply roller in the lower film supply unit are activated. Simultaneously, the oscillating plate device of the upper film supply unit is controlled by the electro-pneumatic solenoid valve group to cut off the film supply path of the upper film supply unit, allowing the lower film supply unit to start supplying film to subsequent processes. During this process, there is no need to stop the machine. After the upper film supply unit stops supplying film, the operator can use the film roll roller shaft to install a new packaging film roll onto the film supply roller of the upper film supply unit, completing the film roll replacement. When the packaging film in the lower film supply unit is about to run out, the machine switches back to the upper film supply unit to continue supplying film. This cycle repeats continuously, achieving continuous automatic film supply and avoiding the impact of downtime for film replacement on production efficiency.

[0041] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. An automatic film changing device for cigarette packaging film, characterized in that: The device includes a frame, within which two sets of film supply devices are symmetrically arranged vertically. The upper film supply device includes two film supply rollers with one end suspended, a guide roller group above the two film supply rollers, two symmetrically arranged swing plate devices above the guide roller group, and a film pulling roller on the same side of the guide roller group. The film pulling roller has a film pulling roller drive motor on the outside of the frame. The guide roller group includes four guide rollers arranged parallel to each other on the same plane and two sets of film straightening roller groups symmetrically arranged in the middle. The film straightening roller groups are located below the guide rollers. Each film supply roller can hold two rolls of packaging film. A partition is provided in the middle of each set of film straightening roller groups to separate the two rolls of packaging film and prevent them from overlapping.

2. The automatic film replacing device for cigarette packaging film according to claim 1, characterized in that: The end of the film supply roller connected to the frame is also equipped with a film supply roller drive motor. The film supply roller motor is located on the outside of the frame, on the same side of the frame as the film pulling roller drive motor.

3. The automatic film replacing device for cigarette packaging film according to claim 1, characterized in that: The film feeding roller is provided with raised strips evenly distributed around its circumference to increase the friction between it and the packaging film roll core cylinder.

4. The automatic film replacing device for cigarette packaging film according to claim 1, characterized in that: A film roll shaft is installed on the frame at one of the suspended ends of the film supply roller for quickly installing packaging film rolls onto the film supply roller.

5. The automatic film replacing device for cigarette packaging film according to claim 1, characterized in that: The guide roller is an optical axis roller.

6. The automatic film replacing device for cigarette packaging film according to claim 1, characterized in that: The film-forming roller assembly has two rollers, one coarse and one fine, and the surface of the rollers has a rubber layer to increase the friction with the packaging film.

7. The automatic film replacing device for cigarette packaging film according to claim 1, characterized in that: The swing plate device includes a swing plate and a swing cylinder disposed in the middle of the swing plate. The swing plate has guide holes on both sides of the swing cylinder. A guide shaft slides through the guide holes. The guide shaft and the piston head of the swing cylinder are disposed on the frame.

8. The automatic film replacing device for cigarette packaging film according to claim 1, characterized in that: The film-pulling roller drive motor and the grinding roller drive motor are pneumatic motors, and the film-pulling roller drive motor is a pneumatic motor with a reducer for rotational drive.

9. The automatic film replacing device for cigarette packaging film according to claim 1, characterized in that: The frame is equipped with an electronic pneumatic solenoid valve assembly to supply air to each air-consuming device and control the operation of the air-consuming device.

Images