Film head clamping device for film strapping machine

Abstract

The utility model discloses a film head clamping device used in a film strapping machine, which comprises a fixed block and a limiting block, two parallel optical shafts are arranged between the fixed block and the limiting block, a sliding block is sleeved on the optical shafts, a fixed clamp sheet is arranged on the surface of the limiting block, an L-shaped movable clamp sheet is arranged on the side surface of the sliding block, and the movable clamp sheet is arranged on the fixed clamp sheet. The fixed clamp piece is arranged over the movable clamp piece, and the movable clamp piece clamps a thin film on a thin film roll when moving along the optical axis through the sliding block. When the film head clamping device used in the film strapping machine is used, a film head does not need to be manually found, and the film strapping quality is guaranteed; in addition, the film is integrally tightened after being clamped, cutting is facilitated, practicability is high, and the device is suitable for application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of film bundling, in particular to a film head clamping device used in a film bundling machine. Background Art

[0002] In many fields such as medicine, food, workpieces and equipment, products are usually packaged in boxes before leaving the factory for easy collection and transportation.

[0003] However, multiple packaging boxes are relatively scattered and not easy to be stacked together for transportation; therefore, people have come up with the idea of ​​bundling multiple scattered products together through film to facilitate centralized and large-scale transportation.

[0004] The invention patent with publication number CN113682517A discloses a cross film strapping device and method, the device comprising: a strapping table for placing objects to be packaged, the strapping table being capable of rotating 90° based on a connected first rotating drive mechanism; a strapping mechanism comprising a rotating member on which a strapping film roller is provided, the rotating member being capable of rotating around the object to be packaged one circle based on a connected second rotating drive mechanism so that the strapping film on the strapping film roller is wrapped around the object to be packaged; a spot welding mechanism, the spot welding mechanism being capable of welding and connecting two overlapping layers of strapping film after wrapping one circle based on a set hot welding head; a cutting mechanism, the cutting mechanism being capable of cutting the wrapped strapping film based on a set cutter; a controller being capable of controlling the actions of the strapping table, the strapping mechanism, the spot welding mechanism and the cutting mechanism; and the technical problem of film being difficult to strap.

[0005] The above device cuts the film by a cutter, but after the cutter cuts the film, the film head cannot be clamped in time, and the film head is difficult to find when bundling for use again, which brings trouble to the bundling work and inconvenience. Utility Model Content

[0006] The purpose of the utility model is to solve the above problems and provide a film head clamping device for a film strapping machine, which does not require manual searching for the film head and ensures the quality of film strapping; in addition, the film is tightened as a whole after being clamped and is also convenient for cutting.

[0007] To achieve the above-mentioned purpose, the technical solution of the utility model is: a film head clamping device for a film strapping machine, comprising a fixed block and a limit block, two parallel optical axes are provided between the fixed block and the limit block, a slider is provided on the optical axis, a fixed clamp is provided on the surface of the limit block, and an L-shaped movable clamp is provided on the side of the slider, the fixed clamp is provided directly above the movable clamp, and the movable clamp clamps the film on the film roll when the slider moves along the optical axis.

[0008] Preferably, the fixed block is arranged on the surface of the upper support, and the upper support is also provided with an electric push rod. The output end of the electric push rod is provided with a fixed connecting rod, and the end of the connecting rod is fixedly connected to the slider. When the electric push rod is in operation, it drives the movable clamp to move up and down.

[0009] Preferably, a protrusion is provided on the bottom surface of the fixed clamp piece, and a surface of the protrusion is provided with serrations for clamping the film.

[0010] Preferably, a base is provided below the upper support, cylindrical guide rods are provided on both sides of the base, rollers are provided on both sides of the bottom of the upper support, and arc-shaped depressions are provided on the circumference of the rollers to match the guide rods, and the upper support is translated along the guide rods through the rollers.

[0011] Preferably, one side of the base is also provided with a driving mechanism for driving the upper support to translate, the driving mechanism includes a stepping motor and two synchronous pulleys, one of the synchronous pulleys is connected to the synchronous motor for transmission, a synchronous belt is provided between the two synchronous pulleys, a fixed connecting rod is provided on the synchronous belt, the end of the connecting rod is fixedly connected to the upper support by a screw, and the stepping motor drives the upper support to translate along the base when it is running.

[0012] The utility model discloses a film head clamping device for a film strapping machine, comprising a fixed block and a limit block, two parallel optical axes are provided between the fixed block and the limit block, a slider is sleeved on the optical axis, a fixed clamp piece is provided on the surface of the limit block, and an L-shaped movable clamp piece is provided on the side of the slider, the fixed clamp piece is provided just above the movable clamp piece, and the movable clamp piece clamps the film on the film roll when it moves along the optical axis through the slider; compared with the prior art, the film head clamping device for a film strapping machine does not require manual searching for the film head when in use, thereby ensuring the quality of film strapping; in addition, the film is tightened as a whole after being clamped, which is also conducive to cutting, and has the beneficial effect of strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The overall structure of the film head clamping device used in the film strapping machine of the utility model is shown in FIG. Figure 1 .

[0014] Figure 2 This is a schematic diagram of the overall structure of the film head clamping device used in the film strapping machine of the utility model Figure 2 .

[0015] Figure 3 The overall structure of the film head clamping device used in the film strapping machine of the utility model is shown in FIG. Figure 3 .

[0016] Figure 4 The utility model is a structural schematic diagram of the base and the driving mechanism of the film head clamping device used in the film strapping machine.

[0017] Figure 5 For this utility model Figure 1 Schematic diagram of the structure at point A.

[0018] Figure 6 For this utility model Figure 3 Schematic diagram of the structure at point B.

[0019] In the figure: 1. Base; 101. Guide rod; 2. Upper support; 201. Roller; 3. Fixed block; 31. Limit block; 4. Optical axis; 5. Slider; 6. Electric push rod; 7. Connecting rod; 8. Moving jaw; 9. Fixed jaw; 91. Saw teeth; 10. Film roll; 11. Stepper motor; 12. Synchronous pulley; 13. Synchronous belt; 14. Connecting rod. DETAILED DESCRIPTION

[0020] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner, and thus only show components related to the present invention.

[0021] Please refer to Figure 1-6 A film head clamping device for a film strapping machine includes a fixed block 3 and a limit block 31. Two parallel optical axes 4 are provided between the fixed block 3 and the limit block 31. A slider 5 is sleeved on the optical axis 4. A fixed clamp 9 is provided on the surface of the limit block 31. An L-shaped movable clamp 8 is provided on the side of the slider 5. The fixed clamp 9 is provided directly above the movable clamp 8. The movable clamp 8 clamps the film head on the film roll 10 when it moves along the optical axis 4 through the slider 5.

[0022] In this embodiment, the film head is the end of the film on the film roll 10 .

[0023] That is to say, by controlling the position of the slider 5 on the optical axis 4, the position of the movable jaw 8 can be controlled; when the surface of the movable jaw 8 contacts the bottom surface of the fixed jaw 9, the film is clamped and fixed; when the movable jaw 8 is not in contact with the fixed jaw 9, the film is not clamped, and the film bundling work can be carried out.

[0024] In this embodiment, the fixed block 3 is arranged on the surface of the upper support 2, and the upper support 2 is also provided with an electric push rod 6. The output end of the electric push rod 6 is provided with a fixed connecting rod 7, and the end of the connecting rod 7 is fixedly connected to the slider 5. When the electric push rod 6 performs telescopic movement, the slider 5 rises and falls along the optical axis 4, so the rise and fall of the slider 5 drives the movable clamp 8 to move up and down; when the electric push rod 6 is extended, the slider 5 and the movable clamp 8 move upward to close the jaws to clamp the membrane head; when the electric push rod 6 is retracted, the slider 5 and the movable clamp 8 move downward to open the jaws and release the membrane head; the closing and opening of the jaws are controlled according to actual needs.

[0025] Since the film layer used in the strapping machine is relatively thin, it is easy to loosen when clamped; to avoid this phenomenon, a protrusion is provided on the bottom surface of the fixed clamp 9, and the lower surface of the protrusion is provided with serrations 91 for clamping the film head; the setting of the serrations 91 can increase the contact area and friction between the jaws and the film, thereby preventing the clamped film head from loosening.

[0026] In addition, a base 1 is provided below the upper support 2, and cylindrical guide rods 101 are provided on both sides of the base 1. Rollers 201 are provided on both sides of the bottom of the upper support 2, and the circumference of the roller 201 is provided with an arc-shaped depression that cooperates with the guide rod 101. The upper support 2 is translated along the guide rod 101 through the roller 201.

[0027] Since the fixed block 3, optical axis 4, electric push rod 6, movable clamp 8 and fixed clamp 9 are all arranged on the upper support 2, the translation of the upper support 2 will drive the overall translation; therefore, when the membrane head needs to be clamped, the whole body moves to the right (towards the membrane head); when bundling, the membrane head is released and the whole body moves to the left, which is convenient to use.

[0028] Specifically, one side of the base 1 is also provided with a driving mechanism for driving the upper support 2 to translate, and the driving mechanism includes a stepping motor 11 and two synchronous pulleys 12, one of the synchronous pulleys 12 is connected to the stepping motor 11 for transmission, and a synchronous belt 13 is provided between the two synchronous pulleys 12, and a fixed connecting rod 14 is provided on the synchronous belt 13, and the end of the connecting rod 14 is fixedly connected to the upper support 2 by a screw. When the stepping motor 11 is running, it drives the upper support 2 to translate along the base 1.

[0029] The synchronous belt 13 is arranged parallel to the base 1 .

[0030] Since the synchronous belt 13 is fixedly connected to the upper support 2 through the connecting rod 14, the synchronous belt 13 will pull the upper support 2 through the connecting rod 14 when it rotates; when the upper support 2 is subjected to tension, the roller 201 begins to roll along the guide rod 101, thereby realizing the translation of the upper support 2.

[0031] During the film bundling process of the strapping machine, the jaws (movable jaw 8 and fixed jaw 9) are away from the film head, and the movable jaw 8 and the fixed jaw 9 do not contact each other; when the film is bundled, the stepper motor 11 starts to run, which drives the upper support 2 to move to the right. At this time, the movable jaw 8 and the fixed jaw 9 will enter the upper and lower ends of the film head, and then the output rod of the electric push rod 6 extends to drive the movable jaw 8 to move upward. The upward movement of the movable jaw 8 clamps the film between the movable jaw 8 and the fixed jaw 9. After the film head is clamped, the film is cut.

[0032] That is to say, before the strapping machine is used, the membrane head is clamped by the jaws, and there is no need to manually search for the membrane head. During the film strapping process, the jaws are loosened and away from the membrane head. After strapping is completed, the jaws move toward the film and clamp it again. After clamping, the film is cut; at this time, a new membrane head is formed after cutting, and the cut new membrane head is also clamped; therefore, there is no need to manually search for the membrane head during strapping, thereby ensuring the quality of film strapping; in addition, the overall tension of the film after being clamped is also conducive to cutting, and it is highly practical.

[0033] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A film head clamping device for a film strapping machine, characterized in that: It includes a fixed block and a limit block, two parallel optical axes are provided between the fixed block and the limit block, a slider is provided on the optical axis, a fixed clamp is provided on the surface of the limit block, and an L-shaped movable clamp is provided on the side of the slider. The fixed clamp is provided directly above the movable clamp, and the movable clamp clamps the film on the film roll when the slider moves along the optical axis.

2. The film head clamping device for a film strapping machine according to claim 1, characterized in that: The fixed block is arranged on the surface of the upper support, and an electric push rod is also provided on the upper support. The output end of the electric push rod is provided with a fixed connecting rod, and the end of the connecting rod is fixedly connected to the slider. When the electric push rod is in operation, it drives the movable pliers to move up and down.

3. The film head clamping device for a film strapping machine according to claim 1 or 2, characterized in that: The bottom surface of the fixed clamp piece is provided with a protrusion, and the surface of the protrusion is provided with saw teeth for clamping the film.

4. The film head clamping device for a film strapping machine according to claim 2, characterized in that: A base is also provided below the upper support, and cylindrical guide rods are provided on both sides of the base. Rollers are provided on both sides of the bottom of the upper support, and the circumference of the rollers is provided with arc-shaped depressions that match the guide rods. The upper support moves horizontally along the guide rods through the rollers.

5. The film head clamping device for a film strapping machine according to claim 4, characterized in that: One side of the base is also provided with a driving mechanism for driving the upper support to move horizontally. The driving mechanism includes a stepping motor and two synchronous pulleys, one of which is connected to the synchronous motor for transmission, and a synchronous belt is provided between the two synchronous pulleys. A fixed connecting rod is provided on the synchronous belt, and the end of the connecting rod is fixedly connected to the upper support by a screw. When the stepping motor is running, it drives the upper support to move horizontally along the base.

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