Automatic hot film connecting mechanism

Abstract

An automatic hot film connecting mechanism comprises an air expansion shaft, a welding part arranged on one side of the air expansion shaft and a film pressing part arranged on the other side of the air expansion shaft. Two air bags which are oppositely arranged are arranged in the inflatable shaft, and a clamping channel is formed between the two air bags; the welding part comprises a welding knife and a first air cylinder driving the welding knife to be close to or away from the surface of the inflatable shaft. The film pressing component comprises a pressing block and a second air cylinder driving the pressing block to be close to or away from the surface of the inflatable shaft. A first roll film and a second roll film are clamped through an air expansion shaft, the first roll film and the second roll film are stacked through rotation of the air expansion shaft, a welding knife welds the first roll film and the second roll film and fuses a first roll film head at the same time, a servo motor controls a first film roll to rotate reversely, residual films of the first roll film are snapped, high-automation film connection can be achieved, the film connection efficiency is high, and the production efficiency is high. Manpower and material resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to an automatic heat-sealing film mechanism. Background Art

[0002] The standard configuration of the film rolls on the heat shrink film packaging machine is two rolls. When one roll is used up, it needs to be replaced with another roll, and the film between the two rolls needs to be connected. All along, it has been done manually, using the film welding structure to weld the film, and then cut off and remove the excess film head. It needs to be replaced about every half an hour, which is time-consuming and labor-intensive. In today's automated production lines, there is generally only one operator for the back-end packaging, and changing the film takes up a lot of time. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide an automatic heat film-joining mechanism with high film-joining efficiency and saving of manpower and material resources.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: an automatic heat film bonding mechanism, including an inflatable shaft, a welding component arranged on one side of the inflatable shaft and a film pressing component arranged on the other side of the inflatable shaft; two air bags arranged opposite to each other are arranged in the inflatable shaft, and a clamping channel is formed between the two air bags; the welding component includes a welding knife and a first cylinder driving the welding knife to approach or move away from the surface of the inflatable shaft; the film pressing component includes a pressing block and a second cylinder driving the pressing block to approach or move away from the surface of the inflatable shaft. Principle of the utility model: when the first roll of film is almost used up, put the second roll of film head into the clamping channel of the inflatable shaft in advance; after the first roll of film stops conveying, the inflatable shaft rotates 360 degrees, so that the first roll of film and the second roll of film are stacked and wrapped on the surface of the inflatable shaft; the second cylinder drives the pressing block to press the film; the first cylinder drives the welding knife to weld the first roll of film and the second roll of film and melt the first roll of film head at the same time; the servo motor controls the first roll of film to reverse, pull off the remaining film of the first roll of film, and complete the film bonding action.

[0005] As an improvement, the length of the welding knife is not less than the width of the film, the length of the pressing block is not less than the width of the film, the two ends of the welding knife are respectively provided with a first cylinder, and the two ends of the pressing block are respectively provided with a second cylinder.

[0006] As an improvement, a first groove is provided on the surface of the inflatable shaft corresponding to the welding knife, and a second groove is provided on the surface of the inflatable shaft corresponding to the pressing block.

[0007] As an improvement, guide rollers are provided on both sides above the inflatable shaft, and the two guide rollers and the inflatable shaft are distributed in a triangle.

[0008] As an improvement, a hand crank is provided at one end of the inflatable shaft.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The first film roll and the second film roll are clamped by the air shaft, and the first film roll and the second film roll are stacked by rotating the air shaft. The welding knife welds the first film roll and the second film roll and melts the first film roll head at the same time. The servo motor controls the first film roll to reverse and pull off the remaining film of the first film roll, which can realize highly automated film splicing with high efficiency and save manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a side schematic diagram of the utility model.

[0012] Figure 2 It is a cross-sectional view of the utility model. Implementation

[0013] The utility model will be further described below in conjunction with the accompanying drawings.

[0014] An automatic heat film bonding mechanism has an input end connected to a servo film roll mechanism, an output end provided with a film tensioning mechanism, a first film roll and a second film roll connected through the film bonding structure, and the film tensioning mechanism plays a role in tensioning the film roll during the film bonding process.

[0015] like Figure 1 , 2As shown, the automatic heat-sealing film mechanism includes an inflatable shaft 1, a welding component arranged on one side of the inflatable shaft 1, and a film pressing component arranged on the other side of the inflatable shaft 1. The two ends of the inflatable shaft 1 are pivotally connected between two symmetrical wall panels 3; one end of the inflatable shaft 1 is provided with a self-locking hand crank 2, and the inflatable shaft 1 is driven to rotate by the self-locking hand crank 2, and the self-locking hand crank 2 is manually rotated to lock the welding position of the film roll to be connected and the running film roll; the upper end of the wall panel is V-shaped, and guide rollers 8 are respectively provided on both sides above the inflatable shaft 1, and the two guide rollers 8 and the inflatable shaft 1 are distributed in a triangular shape; two air bags 11 arranged opposite to each other are provided in the inflatable shaft 1, and a clamping channel 12 is formed between the two air bags 11; a first groove 13 is provided on the surface of the inflatable shaft 1 corresponding to the welding knife, and a second groove 14 is provided on the surface of the inflatable shaft 1 corresponding to the pressing block. The welding component includes a welding knife 5 and a first cylinder 4 for driving the welding knife 5 to approach or move away from the surface of the inflatable shaft 1; the length of the welding knife 5 is not less than the width of the film, the welding knife 5 is arranged parallel to the inflatable shaft 1, and the two ends of the welding knife 5 are respectively provided with a first cylinder 4, and the first cylinder 4 is installed on the wallboard 3; the welding knife 5 is marked and counted by the color film photoelectric detection, and after the film roll is operated and the film is compensated until the mark of the film roll to be connected coincides, the film roll side welding knife 5 is operated to complete the automatic welding action. The film pressing component includes a pressing block 7 and a second cylinder 6 for driving the pressing block 7 to approach or move away from the surface of the inflatable shaft 1; the length of the pressing block 7 is not less than the width of the film, the pressing block 7 is arranged parallel to the inflatable shaft 1, and the two ends of the pressing block 7 are respectively provided with a second cylinder 6, and the second cylinder 6 is installed on the wallboard 3; when the color film photoelectric detection marks the mark, the film is pressed horizontally, and the tension force of the film stretching of the partition and the rear section is stretched. At this time, the film roll is operated to match the mark and release the film to compensate for the amount of film required for welding and the buffer force at the joint when the pressing block 7 is retracted.

[0016] The principle of the utility model is as follows: when the first roll of film is almost used up, the second roll of film is placed in the clamping channel 12 of the air shaft 1 in advance; after the first roll of film stops being transported, the air shaft 1 rotates 360 degrees, so that the first roll of film and the second roll of film are stacked and wrapped on the surface of the air shaft 1; the second cylinder 6 drives the pressure block 7 to press the film; the first cylinder 4 drives the welding knife 5 to weld the first roll of film and the second roll of film and melt the first roll of film head at the same time; the servo motor controls the first roll of film to reverse, pulls off the remaining film of the first roll of film, and completes the film splicing action.

Claims

1. An automatic thermal film bonding mechanism, characterized in that: It includes an inflatable shaft, a welding component arranged on one side of the inflatable shaft and a film pressing component arranged on the other side of the inflatable shaft; the inflatable shaft is provided with two oppositely arranged air bags, and a clamping channel is formed between the two air bags; the welding component includes a welding knife and a first cylinder driving the welding knife to approach or move away from the surface of the inflatable shaft; the film pressing component includes a pressing block and a second cylinder driving the pressing block to approach or move away from the surface of the inflatable shaft.

2. The automatic heat-sealing film-sealing mechanism according to claim 1, characterized in that: The length of the welding knife is not less than the width of the film, the length of the pressing block is not less than the width of the film, the two ends of the welding knife are respectively provided with a first cylinder, and the two ends of the pressing block are respectively provided with a second cylinder.

3. The automatic thermal film bonding mechanism according to claim 1, characterized in that: A first groove is provided on the surface of the inflatable shaft at a position corresponding to the welding knife, and a second groove is provided on the surface of the inflatable shaft at a position corresponding to the pressing block.

4. The automatic thermal film bonding mechanism according to claim 1, characterized in that: Guide rollers are respectively arranged on both sides above the inflatable shaft, and the two guide rollers and the inflatable shaft are distributed in a triangle.

5. The automatic thermal film bonding mechanism according to claim 1, characterized in that: One end of the inflatable shaft is provided with a hand crank.

Images