Transverse sealing type damage-free heat sealing machine

Abstract

The utility model relates to a transverse sealing type damage-free heat sealing machine which comprises a machine frame, an eccentric rotating shaft which is in driving connection through a first servo motor is erected on the top of the machine frame, two fixing pieces are arranged on the eccentric rotating shaft in a sleeved mode, the lower portions of the fixing pieces are in driving connection with an upper hot knife through a first air cylinder, and a lower hot knife which is in driving connection through a second air cylinder is erected below the upper hot knife. The hot-sealing machine is reasonable in structure, the upper hot knife and the lower hot knife are controlled through the first air cylinder and the second air cylinder respectively, when the hot-sealing machine stops hot-sealing work, the first air cylinder pulls the upper hot knife upwards, the second air cylinder pulls the lower hot knife downwards, and the situation that thin film materials are excessively deformed or damaged due to the fact that the hot knives make contact with the hot-sealing position for a long time is avoided.

Description

Technical Field

[0001] The utility model relates to the field of packaging equipment, in particular to a horizontal sealing type damage-free heat sealing machine. Background Art

[0002] A heat sealer is a device used to heat-seal plastic films or other thermoplastic materials. It uses a heating element to heat the contact area of ​​the packaging material until it melts, then applies external pressure to tightly bond the materials and form a seal. Widely used in the food, pharmaceutical, and electronics industries, heat sealers are essential equipment in the packaging industry. However, if existing heat sealers are stopped during heat sealing, the hot knife will continue to press against the heat-sealed area of ​​the film. The residual heat from the knife can cause deformation or damage to the heat-sealed area, leading to defective products and increased costs. Utility Model Content

[0003] In order to overcome the above-mentioned deficiencies of the existing problems, the utility model provides a horizontal sealing type damage-free heat sealing machine.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a horizontal sealing type damage-free heat sealing machine, including a frame, an eccentric rotating shaft connected by a first servo motor is mounted on the top of the frame, two fixing parts are sleeved on the eccentric rotating shaft, an upper hot knife is connected below the fixing part by a first cylinder drive, and a lower hot knife is mounted below the upper hot knife by a second cylinder drive. When heat sealing is performed, the first cylinder and the second cylinder always maintain an ejection state. When the heat sealing machine stops working, the first cylinder will pull the upper hot knife upwards and the second cylinder will pull the lower hot knife downwards, so that the upper hot knife and the lower hot knife are separated from the heat sealing part of the film material, thereby preventing the heat seal from being excessively deformed or damaged due to long-term contact.

[0005] Preferably, the frame is arranged on the base, and a linear drive device is arranged between the frame and the base, the linear drive device includes guide rails fixed on both sides of the base, and a slider fixedly connected to the bottom of the frame for use with the guide rails, a rotating shaft is provided on the frame and above the slider, and gears are provided at both ends of the rotating shaft, and a rack for use with the gear is provided below the gear and on the frame, and the rotating shaft is driven by a second servo motor. When in use, the second servo motor drives the rotating shaft to drive the gear and the frame to perform linear motion along the direction of the rack.

[0006] Preferably, one end of the rotating shaft away from the second servo motor is fixedly connected to a hand wheel, and the front and rear position of the frame can be adjusted by rotating the hand wheel.

[0007] Preferably, one side of the eccentric shaft is fixedly connected to an angle detection piece, which can play a counting role and can adjust the pressing time of the ironing knife through the angle detection piece.

[0008] Preferably, the upper and lower ironing blades are both provided with heat sealing molds, so that when the heat sealing machine performs heat sealing, the film material is heated more evenly and the heat sealing effect is better.

[0009] The beneficial effect of the utility model is that the upper hot knife and the lower hot knife are controlled respectively by the first cylinder and the second cylinder. When the machine stops heat sealing, the first cylinder pulls the upper hot knife upward and the second cylinder pulls the lower hot knife downward, thereby preventing the hot knife from contacting the heat sealing area for a long time, which may cause excessive deformation or damage of the film material. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 It is the main view of the utility model;

[0012] Figure 2 It is a left view of the utility model;

[0013] Figure 3 yes Figure 1 A partial enlarged view of point A in the middle;

[0014] In the figure, 1. frame; 2. first servo motor; 3. eccentric shaft; 4. fixing part; 5. first cylinder; 6. upper hot knife; 7. second cylinder; 8. lower hot knife; 9. base; 10. linear drive device; 11. guide rail; 12. slider; 13. shaft; 14. gear; 15. rack; 16. second servo motor; 17. angle detection piece; 18. handwheel. DETAILED DESCRIPTION

[0015] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0016] Any feature disclosed in this specification (including any appended claims, abstract, and drawings), unless otherwise stated, may be replaced by other equivalent or similar features. In other words, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0017] like Figure 1-3The illustrated one kind is a kind of cross-sealing heat-seal machine, including frame 1, frame 1 top is erected with the eccentric shaft 3 of driving connection through first servo motor 2, two fixed parts 4 are set on eccentric shaft 3, and the upper ironing knife 6 is driven and connected with the first cylinder 5 below fixed part 4, and the lower ironing knife 8 is driven and connected with the second cylinder 7 below upper ironing knife 6, when heat-seal machine is stopped, the first cylinder 5 will pull up the upper ironing knife 6, and the second cylinder 7 will pull down the lower ironing knife 8, so that the upper ironing knife 6 and the lower ironing knife 8 are separated from the heat-seal place of film material, prevent the case that heat-seal mouth appears excessive deformation or breakage due to long time contact.

[0018] The frame 1 is arranged on the base 9, and a linear drive device 10 is arranged between the frame 1 and the base 9. The linear drive device 10 includes guide rails 11 fixed on both sides of the base 9. The frame 1 is fixedly connected with sliding blocks 12 used in cooperation with the guide rails 11. A rotating shaft 13 is arranged above the frame 1 and the sliding blocks 12. Gear wheels 14 are arranged on both ends of the rotating shaft 13. A rack 15 is arranged below the gear wheels 14 and on the frame 1 and used in cooperation with the gear wheels 14. The rotating shaft 13 is driven by a second servo motor 16. In use, the second servo motor 16 drives the rotating shaft 13 to drive the gear wheels 14 and the frame 1 to move linearly along the rack 15.

[0019] One end of the rotating shaft 13 away from the second servo motor 16 is fixedly connected with a hand wheel 18. The front and back positions of the frame 1 can be adjusted by rotating the hand wheel 18.

[0020] One side of the eccentric shaft 3 is fixedly connected with an angle detection sheet 17. The angle detection sheet 17 can be used for counting and adjusting the pressing time of the ironing knife.

[0021] The surfaces of the upper ironing knife 6 and the lower ironing knife 8 are provided with heat-seal films. When the heat-seal machine is working, the film material is heated more uniformly, and the heat-seal effect is better. Specific embodiments

[0022] According to the use requirements, the front and back positions of the frame 1 are adjusted by the second servo motor 16 or the rotating hand wheel 18. Then, the pressing time of the ironing knife is adjusted by the angle detection sheet 17 according to the film material to be heat-sealed. When heat-sealing work is performed, the first servo motor 2 drives the eccentric shaft 3 to drive the upper ironing knife 6 to press downward. When heat-sealing work needs to be stopped, the first cylinder 5 pulls the upper ironing knife 6 upward, and the second cylinder 7 pulls the lower ironing knife 8 downward, so that the upper ironing knife 6 and the lower ironing knife 8 are separated from the heat-seal place of the film material, preventing the film material from being excessively deformed or damaged due to long time contact with the heat-seal place.

[0023] This design is ingenious. The upper and lower hot blades are controlled by the first and second cylinders respectively. When the machine stops heat sealing, the first cylinder pulls the upper hot blade upwards and the second cylinder pulls the lower hot blade downwards to prevent the hot blades from contacting the heat seal for a long time, which may cause excessive deformation or damage to the film material. In addition, the angle detection piece is used to count and control the time for the hot blade to press. The heat-sealing film on the surface of the hot blade can make the film material to be heat-sealed more evenly heated, effectively improving the heat sealing effect.

[0024] The present invention is not limited to the aforementioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A horizontal sealing type damage-free heat sealing machine, characterized by: The invention comprises a frame (1), an eccentric rotating shaft (3) connected to the frame (1) by driving via a first servo motor (2), two fixing members (4) sleeved on the eccentric rotating shaft (3), an upper ironing knife (6) connected to the frame (1) by driving via a first cylinder (5), and a lower ironing knife (8) connected to the frame (1) by driving via a second cylinder (7).

2. The horizontal sealing type damage-free heat sealing machine according to claim 1, characterized in that: The frame (1) is arranged on a base (9), and a linear drive device (10) is arranged between the frame (1) and the base (9), the linear drive device (10) includes guide rails (11) fixed on both sides of the base (9), a slider (12) used in conjunction with the guide rails (11) is fixedly connected to the bottom of the frame (1), a rotating shaft (13) is provided on the frame (1) and above the slider (12), gears (14) are sleeved on both ends of the rotating shaft (13), a rack (15) used in conjunction with the gear (14) is provided below the gear (14) and on the frame (1), and the rotating shaft (13) is driven by a second servo motor (16).

3. The horizontal sealing type damage-free heat sealing machine according to claim 2, characterized in that: One end of the rotating shaft (13) away from the second servo motor (16) is fixedly connected to a handwheel (18).

4. The horizontal sealing type damage-free heat sealing machine according to claim 1, characterized in that: An angle detection piece (17) is fixedly connected to one side of the eccentric rotating shaft (3).

5. The horizontal sealing type damage-free heat sealing machine according to claim 1, characterized in that: The surfaces of the upper ironing knife (6) and the lower ironing knife (8) are both provided with heat-sealing films.

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