Film connecting mechanism of heat shrink film packaging machine

Abstract

The utility model relates to the field of cigarette packaging, in particular to a film connecting mechanism of a heat shrink film packaging machine, which comprises a heightening table and a mounting mechanism, and an upper extending plate is fixed at the upper end of the heightening table. The motor drives the rotating shaft to rotate so that the three-branch rotating stand can rotate, when the branch, loaded with the empty roll core, of the three-branch rotating stand touches the material returning button, the material returning electric push rod drives the push block to extend outwards so that the roll core on the loading roller can be returned, and when a heat shrinkage film roll is used again, the motor drives the three-branch rotating stand to rotate again so that the three-branch rotating stand can rotate. When the branch abutting against the material returning button is separated from the material returning button, the material returning electric push rod drives the push block to retract, at the moment, the loading roller after material returning moves to the rear portion of the containing frame along with rotation of the three-branch rotating frame, meanwhile, the branch of the three-branch rotating frame can abut against the material feeding button, the material feeding electric push rod drives the material feeding plate to retract, and then the loading roller is loaded. And the new roll core and the heat shrinkage film roll in the containing frame are pushed to the empty loading roller through the feeding plate, so that the device has good continuity.

Description

Technical Field

[0001] The utility model relates to the field of cigarette packaging, in particular to a film joining mechanism of a heat shrink film packaging machine. Background Art

[0002] Cigarettes are a type of tobacco product. The production method is to dry the tobacco, cut it into shreds, and then roll it into a cylindrical strip with a length of about 120mm and a diameter of 10mm. Cigarettes are generally packaged during production. During the packaging process of cigarette packs, after the cigarette packs are packaged into cigarette strips, there are two ways to transport the cigarette strips. One way is to put the cigarette strips into cigarette boxes and transport the cigarette boxes directly; the other way is to stack the cigarette strips together, wrap the cigarette stacks, and then transport them.

[0003] When packing a pile of cigarette strips with heat shrink film, it is generally necessary to process the rolled heat shrink film rolls. However, the rolled heat shrink film rolls are heavy. After each roll is used up, the roll core needs to be removed and a new roll needs to be put on, which is time-consuming and labor-intensive and affects the continuity of production. Utility Model Content

[0004] The purpose of the utility model is to provide a film joining mechanism for a heat shrink film packaging machine in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A film splicing mechanism of a heat shrink film packaging machine comprises a raising platform, an upper extension plate is fixed to the upper end of the raising platform, and also comprises an installation mechanism for installing a heat shrink film roll;

[0007] The installation mechanism includes a motor, which is installed at the rear end of the upper extension plate, a rotating shaft is fixed at the output end of the motor, a three-branch rotating frame is fixed on the periphery of the rotating shaft, loading rollers are rotatably connected to the three branches of the three-branch rotating frame, a winding core is slidably connected to the periphery of the loading roller, a heat shrink film roll is arranged on the periphery of the winding core, a material return electric push rod is installed at the lower end of the upper extension plate, a push block is fixed at the telescopic end of the material return electric push rod, and a material return button is installed at the front end of the fixed section of the material return electric push rod, a fixed bracket is fixed at one end of the upper extension plate, a loading rack is fixed at one end of the fixed bracket, a loading electric push rod is installed at the upper end of the upper extension plate, a loading plate is fixed at the telescopic end of the loading electric push rod, and a loading button is installed at the rear end of the fixed section of the loading electric push rod.

[0008] Preferably, the positions of the push block and the loading plate correspond to the winding core arrangement of the outer periphery of the loading roller.

[0009] Preferably, the front ends of the material return button and the material loading button are flush with the front end of the three-branch rotary frame when no force is applied, and the outer circles of the material return button and the material loading button are rounded.

[0010] Preferably, the accommodating dimensions inside the container rack correspond to the diameters of the roll core and the heat shrink film roll when not in use.

[0011] Preferably, the retractable length of the material-returning electric push rod is the same as the length of the loading roller.

[0012] Preferably, the maximum extension length of the loading electric push rod is the same as the length of the fixed bracket, and the lower end of the loading plate is higher than the upper end of the loading rack.

[0013] The beneficial effects compared with the prior art are as follows:

[0014] When the device is in operation, if the heat shrink film roll in use is used up, the motor drives the rotating shaft to rotate, thereby making the three-branch rotating frame on the periphery of the rotating shaft rotate. When the branch of the three-branch rotating frame loaded with an empty roll core touches the unloading button, the unloading electric push rod can drive the push block to extend outward, thereby unloading the empty roll core on the loading roller for unloading. When a roll of heat shrink film roll is used up again, the motor drives the three-branch rotating frame to rotate again, and when the branch that presses against the unloading button is separated from the unloading button, the unloading electric push rod drives the push block to retract quickly to prepare for subsequent unloading processing. At this time, the loading roller that has been unloaded moves to the rear of the loading rack with the rotation of the three-branch rotating frame, and at the same time, this branch of the three-branch rotating frame will press the loading button, thereby making the loading electric push rod drive the loading plate to retract, so that the loading plate pushes the new roll core and the heat shrink film roll in the loading rack onto the empty loading roller for subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a structural schematic diagram of a film joining mechanism of a heat shrink film packaging machine described in the utility model;

[0017] Figure 2 This is a front view of a film joining mechanism of a heat shrink film packaging machine described in the utility model;

[0018] Figure 3 It is a schematic diagram of a driving structure of a film splicing mechanism of a heat shrink film packaging machine described in the utility model;

[0019] Figure 4 It is a schematic diagram of a film-joining mechanism and a material-returning structure of a heat shrink film packaging machine described in the utility model;

[0020] Figure 5 It is a schematic diagram of a feeding structure of a film splicing mechanism of a heat shrink film packaging machine described in the utility model.

[0021] The following are the descriptions of the reference numerals:

[0022] 1. Raising platform; 11. Base frame; 12. Fixing bolts; 2. Upper extension plate; 3. Motor; 31. Rotating shaft; 32. Three-branch rotating frame; 33. Loading roller; 34. Winding core; 35. Heat shrink film roll; 36. Material return electric push rod; 37. Push block; 38. Material return button; 39. Fixed bracket; 310. Container rack; 311. Material loading electric push rod; 312. Material loading plate; 313. Material loading button. DETAILED DESCRIPTION

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, 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 of the present utility model, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] like Figure 1-Figure 5 As shown, a film splicing mechanism of a heat shrink film packaging machine includes a raising platform 1, an upper extension plate 2 is fixed to the upper end of the raising platform 1, and also includes a mounting mechanism for mounting a heat shrink film roll.

[0027] Two base frames 11 are fixed to the lower end of the raising platform 1 , and a plurality of fixing bolts 12 are arranged in the middle of the base frames 11 ; the device can be installed to a suitable position through the fixing bolts 12 .

[0028] The mounting mechanism comprises a motor 3, which is mounted at the rear end of the upper extension plate 2, a rotating shaft 31 is fixed at the output end of the motor 3, a three-branch rotating frame 32 is fixed at the periphery of the rotating shaft 31, loading rollers 33 are rotatably connected to the three branches of the three-branch rotating frame 32, a winding core 34 is slidably connected to the periphery of the loading roller 33, a heat shrink film roll 35 is arranged at the periphery of the winding core 34, a material return electric push rod 36 is mounted at the lower end of the upper extension plate 2, the telescopic length of the material return electric push rod 36 is the same as the length of the loading roller 33, a push block 37 is fixed at the telescopic end of the material return electric push rod 36, a material return button 38 is mounted at the front end of the fixed section of the material return electric push rod 36, and a fixed bracket 3 is fixed at one end of the upper extension plate 2. 9. A loading rack 310 is fixed at one end of the fixed bracket 39. The accommodating size inside the loading rack 310 corresponds to the diameter of the roll core 34 and the heat shrink film roll 35 when not in use. A loading electric push rod 311 is installed at the upper end of the upper extension plate 2. The maximum extension length of the loading electric push rod 311 is the same as the length of the fixed bracket 39. A loading plate 312 is fixed to the telescopic end of the loading electric push rod 311. The lower end of the loading plate 312 is higher than the upper end of the loading rack 310. The positions of the push block 37 and the loading plate 312 correspond to the roll core 34 outside the loading roller 33. A loading button 313, a material return button 38 and an upper The front end of the material button 313 when not under force is flush with the front end of the three-branch rotating frame 32, and the outer circles of the material return button 38 and the material loading button 313 are rounded; if the heat shrink film roll 35 in use is used up, the motor 3 drives the rotating shaft 31 to rotate, thereby rotating the three-branch rotating frame 32 outside the rotating shaft 31, and when the branch of the three-branch rotating frame 32 loaded with an empty roll core 34 touches the material return button 38, the material return electric push rod 36 can drive the push block 37 to extend outward, thereby returning the empty roll core 34 on the loading roller 33 to the material return process, and when another roll of heat shrink film 35 is used up, the motor 3 drives the three-branch rotating frame 32 to rotate again. After this branch of the material return button 38 is detached from the material return button 38, the material return electric push rod 36 drives the push block 37 to retract quickly, preparing for the subsequent material return processing. At this time, the loading roller 33 that has already been returned moves to the rear of the loading rack 310 with the rotation of the three-branch turntable 32. At the same time, this branch of the three-branch turntable 32 will support the loading button 313, so that the loading electric push rod 311 drives the loading plate 312 to retract, so that the loading plate 312 pushes the new roll core 34 and the heat shrink film roll 35 in the loading rack 310 onto the empty loading roller 33 for subsequent processing. In this way, the device has good continuity, thereby reducing the time wasted due to manual material changing.

[0029] Working principle: When the device is in operation, if the heat shrink film roll 35 in use is used up, the motor 3 drives the rotating shaft 31 to rotate, thereby rotating the three-branch rotating frame 32 outside the rotating shaft 31. When the branch of the three-branch rotating frame 32 loaded with the empty roll core 34 touches the material return button 38, the material return electric push rod 36 can drive the push block 37 to extend outward, thereby returning the empty roll core 34 on the loading roller 33. When another roll of heat shrink film 35 is used up, the motor 3 drives the three-branch rotating frame 32 to rotate again, and when the branch that presses against the material return button 38 is separated from the material return button 38, the material is returned. The electric push rod 36 drives the push block 37 to retract quickly in preparation for the subsequent material return processing. At this time, the loading roller 33 that has been returned moves to the rear of the loading rack 310 as the three-branch turntable 32 rotates. At the same time, this branch of the three-branch turntable 32 will support the loading button 313, so that the loading electric push rod 311 drives the loading plate 312 to retract, so that the loading plate 312 pushes the new roll core 34 and the heat shrink film roll 35 in the loading rack 310 onto the empty loading roller 33 for subsequent processing. In this way, the device has good continuity, thereby reducing the time wasted due to manual material changing.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A film splicing mechanism for a heat shrink film packaging machine, comprising a raised platform (1), an upper extension plate (2) being fixed to the upper end of the raised platform (1), characterized in that: Also included is a mounting mechanism for mounting a heat shrink film roll; The mounting mechanism comprises a motor (3), the motor (3) being mounted at the rear end of the upper extension plate (2), a rotating shaft (31) being fixed to the output end of the motor (3), a three-branch rotating frame (32) being fixed to the periphery of the rotating shaft (31), loading rollers (33) being rotatably connected to the three branches of the three-branch rotating frame (32), a winding core (34) being slidably connected to the periphery of the loading roller (33), a heat shrink film roll (35) being arranged on the periphery of the winding core (34), a material return electric push rod (36) being mounted on the lower end of the upper extension plate (2), and the material return electric push rod (36) being arranged on the periphery of the loading roller (33). A push block (37) is fixed to the telescopic end of the material electric push rod (36), a material return button (38) is installed at the front end of the fixed section of the material return electric push rod (36), a fixed bracket (39) is fixed to one end of the upper extension plate (2), a loading rack (310) is fixed to one end of the fixed bracket (39), a loading electric push rod (311) is installed at the upper end of the upper extension plate (2), a loading plate (312) is fixed to the telescopic end of the loading electric push rod (311), and a loading button (313) is installed at the rear end of the fixed section of the loading electric push rod (311).

2. The film splicing mechanism of a heat shrink film packaging machine according to claim 1, characterized in that: The positions of the push block (37) and the loading plate (312) are both arranged corresponding to the winding core (34) outside the loading roller (33).

3. The film splicing mechanism of a heat shrink film packaging machine according to claim 1, characterized in that: The front ends of the material return button (38) and the material loading button (313) when not under force are flush with the front end of the three-branch rotating frame (32), and the outer circles of the material return button (38) and the material loading button (313) are rounded.

4. The film splicing mechanism of a heat shrink film packaging machine according to claim 1, characterized in that: The accommodating dimensions inside the containing rack (310) correspond to the diameters of the roll core (34) and the heat shrink film roll (35) when not in use.

5. The film splicing mechanism of a heat shrink film packaging machine according to claim 1, characterized in that: The retractable length of the material-removing electric push rod (36) is the same as the length of the loading roller (33).

6. The film splicing mechanism of a heat shrink film packaging machine according to claim 1, characterized in that: The maximum extension length of the loading electric push rod (311) is the same as the length of the fixed bracket (39), and the lowermost end of the loading plate (312) is higher than the uppermost end of the containing rack (310).

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