Pressure doubling roller with supporting function

Abstract

The utility model relates to a voltage doubling roller with a supporting function, which comprises two symmetrically arranged fixing frames, the fixing frames are obliquely arranged on a rack, the fixing frames are fixedly connected with air cylinders, the movable ends of the air cylinders are connected with swing arms in a supporting manner, the rack is fixedly connected with fixing seats, and the fixing seats are connected with the swing arms in a supporting manner. The ends, away from the air cylinders, of the swing arms are movably connected with the fixing bases through pin shafts, a voltage-multiplying roller is erected between the swing arms, the two ends of the voltage-multiplying roller are rotationally connected with the swing arms through bearings, a motor is arranged outside the rack, a rotating roller in driving connection through the motor is arranged in the rack and on one side of the voltage-multiplying roller, and the voltage-multiplying roller is attached to the rotating roller. Guide rollers are arranged on the two sides of the pressure doubling roller and the two sides of the rotating roller, and a hot knife used for hot sealing is arranged above the guide rollers. The pressure-multiplying device is reasonable in structure, constant pressure is applied to the rotating roller by the pressure-multiplying roller under the action of the pressure-multiplying device, materials needing to be sealed by heat can be subjected to pressure and friction force of the pressure-multiplying roller and the rotating roller during delivery, and retraction of the materials possibly caused by heating can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of hot sealing machines, in particular to a double pressure roller with a supporting function. Background Art

[0002] Bag making machines are widely used in fields such as food production enterprises, pharmaceutical manufacturers, quality inspection centers, and packaging production enterprises. A bag making machine mainly consists of a hot knife, a conveying system, a deviation rectifying device, an optoelectronic tracking device, etc. The existing hot knives of bag making machines are usually of the structure of an upper hot knife and a lower hot knife, with relatively low working efficiency. Moreover, when hot sealing, the upper and lower hot knife structures are prone to large inward shrinkage when hot sealing the film, and it is easy to bend and deform the middle part of the lower hot knife during the downward pressing process of the upper hot knife. Content of the Utility Model

[0003] In order to overcome the deficiencies of the above existing problems, the utility model provides a double pressure roller with a supporting function.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows: A double pressure roller with a supporting function includes two symmetrically arranged fixed frames, the fixed frames are obliquely arranged on the frame, a cylinder is fixedly connected to the fixed frames, the movable end of the cylinder is supported and connected with a swing arm, a fixed seat is fixedly connected to the frame, one end of the swing arm far away from the cylinder is movably connected to the fixed seat through a pin shaft, a double pressure roller is arranged between the swing arms, both ends of the double pressure roller are rotationally connected to the swing arms through bearings, a motor is arranged outside the frame, and a roller driven by the motor is arranged on one side of the double pressure roller inside the frame, the double pressure roller is in contact with the roller, guide rollers are arranged on both sides of the double pressure roller and the roller, and a hot knife for hot sealing is arranged above the guide rollers. During use, the double pressure roller applies a constant pressure to the roller under the action of the cylinder and the swing arm, and the motor drives the roller to drive the plastic film substrate, soft packaging composite film, or coated paper, etc., which needs to be hot sealed, to be delivered forward along the direction of the guide rollers. Since the material will pass through the contact area between the roller and the double pressure roller during the delivery process, when the hot knife presses down on the material, if the material shrinks due to heat and adhesion, the material will be subject to the pressure of the double pressure roller and the friction between the double pressure roller and the roller, preventing the material from shrinking backward and inward under the influence of its own elasticity and affecting the hot sealing work.

[0005] Preferably, both the double pressure roller and the roller are rubber rollers. The rubber rollers have characteristics such as simple maintenance, high elasticity, and high temperature resistance, which can reduce the influence on the roller when the hot knife presses down, and the double pressure roller will not cause the roller to deform while applying pressure to the roller.

[0006] Preferably, the motor and the roller are rotationally connected through a toothed belt, and the toothed belt has the characteristic of high transmission accuracy.

[0007] The beneficial effects of the present utility model are as follows. By adopting a roller type heat-sealing and conveying platform, the heat-sealing work efficiency is higher compared with the traditional upper and lower hot knife structure, and the rotating roller is supported by a double pressure roller and a cylinder to prevent the rotating roller from bending. Description of the Drawings

[0008] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0009] Figure 1 is the front view of the present utility model;

[0010] Figure 2 is Figure 1 the sectional view taken along the A-A direction in

[0011] Figure 3 is the right view of the present utility model;

[0012] In the figures, 1, fixed frame; 2, frame; 3, cylinder; 4, toothed belt; 5, swing arm; 6, fixed seat; 7, double pressure roller; 8, motor; 9, rotating roller; 10, guide roller; 11, hot knife. Detailed Embodiment

[0013] All features disclosed in this specification, or all steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any manner.

[0014] Any feature disclosed in this specification (including any additional claims, abstract, and drawings), unless specifically described, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically described, each feature is only an example in a series of equivalent or similar features.

[0015] Such as Figures 1-3A voltage doubling roller with a supporting function as shown includes two symmetrically arranged fixing frames 1. The fixing frames 1 are inclinedly arranged on a frame 2. A cylinder 3 is fixedly connected to the fixing frame 1. The movable end of the cylinder 3 is supported and connected to a swing arm 5. A fixed seat 6 is fixedly connected to the frame 2. One end of the swing arm 5 away from the cylinder 3 is movably connected to the fixed seat 6 through a pin shaft. A voltage doubling roller 7 is arranged between the swing arms 5. Both ends of the voltage doubling roller 7 are rotatably connected to the swing arms 5 through bearings. A motor 8 is arranged outside the frame 2. Inside the frame 2 and on one side of the voltage doubling roller 7, there is a rotating roller 9 driven and connected by the motor 8. The voltage doubling roller 7 is in contact with the rotating roller 9. Guide rollers 10 are arranged on both sides of the voltage doubling roller 7 and the rotating roller 9. A hot knife 11 for hot sealing is arranged above the guide rollers 10. During use, under the action of the cylinder 3 and the swing arm 5, the voltage doubling roller 7 applies a constant pressure to the rotating roller 9. The motor 8 drives the rotating roller 9 to drive a plastic film substrate, a soft packaging composite film, a coated paper or other hot-sealing composite films to be hot-sealed forward along the direction of the guide rollers 10. Since the material will pass through the contact area between the rotating roller 9 and the voltage doubling roller 7 during the delivery process, when the hot knife 11 presses down on the material, if the material shrinks due to heat and adhesion, the material will be subject to the pressure of the voltage doubling roller 7 and the friction between the voltage doubling roller 7 and the rotating roller 9, preventing the material from shrinking backward and inward due to its own elasticity and affecting the hot-sealing work.

[0016] Both the voltage doubling roller 7 and the rotating roller 9 are rubber rollers. The rubber rollers have characteristics such as simple maintenance, high elasticity, and high temperature resistance, reducing the impact on the rotating roller 7 when the hot knife 11 presses down, and the voltage doubling roller 7 will not cause the rotating roller 9 to deform when applying pressure to the rotating roller 9.

[0017] The motor 8 and the rotating roller 9 are rotationally connected through a toothed belt 4. The toothed belt 4 has the characteristic of high transmission accuracy. Specific embodiments

[0018] The motor 8 drives the rotating roller 9 to rotate, driving the material to be hot-sealed above the rotating roller 9 to be delivered forward along the direction of the guide rollers 10. The hot knife 11 presses down on the rotating roller 9 at a fixed frequency. Since the rotating roller 9 is a rubber roller with high temperature resistance, the hot knife 11 will not scald the rotating roller 9 when pressing down. The material to be hot-sealed will pass through the contact area between the voltage doubling roller 7 and the rotating roller 9 during the delivery process. When the hot knife 11 presses down on the material and causes the material to shrink due to heat and adhesion, the material will be subject to the pressure of the voltage doubling roller 7 and the friction between the voltage doubling roller 7 and the rotating roller 9, preventing the material from shrinking inward.

[0019] This design is ingenious. It adopts a roller type heat-sealing conveyor platform, which is more efficient than the traditional upper and lower hot knife structure. The rotating roller is supported by a double pressure roller and a cylinder to prevent the rotating roller from bending. When in use, the double pressure roller applies a constant pressure to the rotating roller, so that the material to be heat-sealed is subjected to the pressure and friction of the double pressure roller and the rotating roller, and the contact area between the material and the rotating roller is increased. Moreover, the double pressure roller can expand the material, effectively preventing the material from retracting and preventing the subsequent sealing position from changing. In addition, both the double pressure roller and the rotating roller are rubber rollers, which can effectively reduce the impact of the hot knife on the rotating roller, and the double pressure roller will not cause the rotating roller to deform while applying pressure to the rotating roller.

[0020] The utility model is not limited to the specific embodiments described above. The utility model extends to any new feature disclosed in this specification or any new combination, as well as any new method or process step disclosed or any new combination.

Claims

1. A pressure doubling roller with a supporting function, characterized in that: The invention comprises two symmetrically arranged fixed frames (1), wherein the fixed frames (1) are tiltedly arranged on a frame (2), a cylinder (3) is fixedly connected to the fixed frame (1), a swing arm (5) is supported and connected to the movable end of the cylinder (3), a fixed seat (6) is fixedly connected to the frame (2), one end of the swing arm (5) away from the cylinder (3) is movably connected to the fixed seat (6) via a pin shaft, a double pressure roller (7) is arranged between the swing arms (5), and both ends of the double pressure roller (7) are rotatably connected to the swing arm (5) via bearings, a motor (8) is arranged outside the frame (2), a rotating roller (9) connected and driven by the motor (8) is arranged inside the frame (2) and on one side of the double pressure roller (7), the double pressure roller (7) is fitted with the rotating roller (9), guide rollers (10) are arranged on both sides of the double pressure roller (7) and the rotating roller (9), and a hot knife (11) for hot sealing is arranged above the guide roller (10).

2. The pressure doubling roller with a supporting function according to claim 1, characterized in that: The pressure doubling roller (7) and the rotating roller (9) are both rubber rollers.

3. The pressure doubling roller with a supporting function according to claim 1, characterized in that: The motor (8) is rotationally connected to the rotating roller (9) via a toothed belt (4).

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