Ultrasonic sealing device for bag making

Abstract

The invention provides a bag-making ultrasonic sealing device which is characterized in that an ultrasonic transducer is fixed on a bag-making rack, and an ultrasonic vibration cutter is arranged on the ultrasonic transducer; the pressing knife fixing plate is used for pressing the knife; the sliding rail is fixed on the bag making rack; one end of the driving part is fixed on the bag making rack, and the other end of the driving part is fixedly connected with the driving connecting plate; the driving connecting plate is fixedly connected with the sliding block; the sliding block is in sliding connection with the sliding rail; the pressing knife fixing plate is fixed on the sliding block; the pressing cutter is arranged on the pressing cutter fixing plate; the driving part drives the driving connecting plate, the sliding block, the pressing cutter fixing plate and the pressing cutter to be close to or away from the ultrasonic vibration cutter. The sealing structure has the advantages that the problem of wrinkles at the sealing part is solved, the attractiveness of the sealing part is improved, and heat is greatly reduced.

Description

Technical Field

[0001] The invention relates to an ultrasonic sealing device for bag making. Background Art

[0002] In existing automated packaging production lines, the packaging is sealed by heating, which results in an unsightly seal and prone to wrinkles. The heating sealing method generates too much redundant heat. Summary of the invention

[0003] The invention provides a bag-making ultrasonic sealing device, which solves the problem of wrinkles at the sealing portion, improves the aesthetics of the sealing portion, and greatly reduces the generation of heat, thereby overcoming the defects of the prior art.

[0004] The present invention provides a bag-making ultrasonic sealing device, comprising: a bag-making frame 1, a first sealing component 2 and a second sealing component 3; the first sealing component 2 comprises: an ultrasonic transducer 21 and an ultrasonic vibrating knife 23; the ultrasonic transducer 21 is fixed on the bag-making frame 1, and the ultrasonic vibrating knife 23 is arranged on the ultrasonic transducer 21; the second sealing component 3 comprises: at least one slide rail 33, a driving part 32, a driving connecting plate 38, a sliding block 34 corresponding to the slide rail 33, a pressing knife fixing plate 35, a pressing knife 37; the slide rail 33 is fixed on the bag making machine frame 1; one end of the driving part 32 is fixed on the bag making machine frame 1, and the other end of the driving part 32 is fixedly connected to the driving connecting plate 38; the driving connecting plate 38 is fixedly connected to the slider 34; the slider 34 is slidably connected to the slide rail 33; the pressing knife fixing plate 35 is fixed on the slider 34; the pressing knife 37 is arranged on the pressing knife fixing plate 35; the driving part 32 drives the driving connecting plate 38, the slider 34, the pressing knife fixing plate 35 and the pressing knife 37 to approach and move away from the ultrasonic vibration knife 23.

[0005] Furthermore, the present invention provides a bag-making ultrasonic sealing device, which may also have the following characteristics: the first sealing component 2 also includes a plurality of heat sinks 22; the heat sinks 22 are fixed on the bag-making frame 1 and are located on both sides of the ultrasonic transducer 21 and / or the ultrasonic vibrating knife 23.

[0006] Furthermore, the present invention provides a bag-making ultrasonic sealing device, which may also have the following characteristics: the bag-making frame 1 includes: an upper frame plate 11, two side frame plates 12 and a lower frame plate 13; the two side frame plates 12 are symmetrically fixed on the lower frame plate 13, and the upper frame plate 11 is fixed on the two side frame plates 12.

[0007] Furthermore, the present invention provides a bag-making ultrasonic sealing device, which may also have the following characteristics: the first sealing component 2 is arranged at the top, and the ultrasonic transducer 21 is fixed on the upper frame plate 11; the second sealing component 3 is arranged at the bottom, and one end of the driving part 32 is fixed on the lower frame plate 13; the slider 34 passes through the lower frame plate 13 and moves up and down relative to the lower frame plate 13.

[0008] Furthermore, the present invention provides a bag-making ultrasonic sealing device, which may also have the following characteristics: the number of the slide rails 33 is two, the number of the sliders 34 is also two; the two slide rails 33 are symmetrically fixed on the lower frame plate 13.

[0009] Furthermore, the present invention provides a bag-making ultrasonic sealing device, which may also have the following feature: the pressing knife 37 is connected to the pressing knife fixing plate 35 via a connecting pin 39 .

[0010] Furthermore, the present invention provides a bag-making ultrasonic sealing device, which may also have the following feature: horizontal adjustment bolts 38 are provided on both sides of the pressing blade 37 .

[0011] Furthermore, the present invention provides a bag-making ultrasonic sealing device, which may also have the following characteristics: the bag-making frame 1 is also provided with at least one film rolling guide rod 15 .

[0012] Furthermore, the present invention provides a bag-making ultrasonic sealing device, which may also have the following characteristics: an adjusting slider 14 is further provided at the bottom of the bag-making frame 1; and the adjusting slider 14 can slide on the corresponding slide rail.

[0013] Furthermore, the present invention provides a bag-making ultrasonic sealing device, which may also have the following characteristics: the adjusting slider 14 has a locking assembly 14a to lock the adjusting slider 14 on the corresponding slide rail.

[0014] The invention provides a bag-making ultrasonic sealing device, which adopts a novel ultrasonic sealing method, reduces the generation of wrinkles at the sealing position, improves the aesthetics of the sealing position, reduces heat generation, and reduces the total power; the sealing shape can be customized at will, providing a solid foundation for the aesthetic appearance of later production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of the bag making ultrasonic sealing device in the embodiment.

[0016] Figure 2 Schematic diagram of the structure of the bag making machine frame in the embodiment.

[0017] Figure 3 Schematic diagram of the structure of the first sealing component in the embodiment.

[0018] Figure 4Schematic diagram of the structure of the second sealing component in the embodiment. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Example

[0021] In this embodiment, the bag-making ultrasonic sealing device comprises: a bag-making frame 1 , a first sealing component 2 and a second sealing component 3 .

[0022] In this embodiment, the bag making machine frame 1 includes: an upper frame plate 11, two side frame plates 12 and a lower frame plate 13. The two side frame plates 12 are symmetrically fixed on the lower frame plate 13, and the upper frame plate 11 is fixed on the two side frame plates 12 to form a rectangular frame, which is open in the front and rear directions for the packaging bag roll film to pass through.

[0023] Preferably, in this embodiment, four film roll guide rods 15 are also arranged in the middle of the bag making machine frame 1, two of which are located slightly above and two of which are located slightly below. The packaging bag film roll passes through the middle of the film roll guide rods 15 on the upper and lower sides, which plays a role of guiding and assisting positioning.

[0024] Preferably, in this embodiment, two adjustment sliders 14 are symmetrically arranged at the bottom of the bag making machine frame 1; the adjustment sliders 14 can slide on the corresponding slide rails of the bag making equipment, so as to facilitate the adjustment of the position of the bag making ultrasonic sealing device on the bag making equipment. The adjustment slider 14 has a locking assembly 14a, which locks the adjustment slider 14 on the corresponding slide rail, fixes the position of the entire bag making ultrasonic sealing device, and prevents displacement during the production process.

[0025] In this embodiment, the first sealing assembly 2 is arranged at the top, and the second sealing assembly 3 is arranged at the bottom. The first sealing assembly 2 includes: an ultrasonic transducer 21 and an ultrasonic vibrating knife 23. The ultrasonic transducer 21 is fixed on the upper frame plate 11 of the bag making machine frame 1. The ultrasonic vibrating knife 23 is located below the upper frame plate 11, and its upper end is connected to the lower end of the ultrasonic transducer 21. The ultrasonic transducer 21 converts electrical energy into mechanical energy to generate ultrasonic waves, thereby driving the ultrasonic vibrating knife 23 to vibrate at a high frequency.

[0026] Preferably, in this embodiment, the first sealing assembly 2 further includes four radiators 22. Two radiators 22 are fixed to the upper frame plate 11 of the bag making machine frame 1 and are located on both sides of the ultrasonic transducer 21. The other two radiators 22 are fixed to the two side frame plates 12 of the bag making machine frame 1 through a connecting plate and are located on both sides of the ultrasonic vibration knife 23 to dissipate heat by thermal convection.

[0027] In this embodiment, the second sealing assembly 3 includes: two slide rails 33 , a driving portion 32 , a driving connecting plate 38 , two sliding blocks 34 , a pressing knife fixing plate 35 , and a pressing knife 37 .

[0028] In this embodiment, the driving part 32 is a cylinder, the fixed end of which is fixed below the lower frame plate 13 of the bag making machine frame 1, and the telescopic end of the driving part 32 is fixedly connected to the driving connecting plate 38. Two slide rails 33 are fixed below the lower frame plate 13 of the bag making machine frame 1; and are symmetrically located on both sides of the driving part 32.

[0029] The two sliders 34 correspond to the slide rails 33 one by one, and the two are slidably connected; the lower end of the slider 34 is fixedly connected to the driving connecting plate 38; the upper end of the slider 34 passes through the lower frame plate 13 of the bag making machine frame 1 and is fixedly connected to the pressing knife fixing plate 35. The pressing knife 37 is arranged on the pressing knife fixing plate 35. In this embodiment, the pressing knife 37 is connected to the pressing knife fixing plate 35 through a connecting pin 39. There are horizontal adjustment bolts 38 on both sides of the pressing knife 37, which can adjust the horizontal position of the pressing knife 37 to be parallel to the ultrasonic vibration knife 23 of the first sealing component 2.

[0030] The working process of the bag making ultrasonic sealing device:

[0031] The film roll of the packaging bag passes through the middle position of the film roll guide rod 15, and when it reaches the sealing position, the bag making device stops conveying the film roll.

[0032] At this time, the telescopic end of the driving part 32 of the bag-making ultrasonic sealing device contracts, driving the driving connecting plate 38 to move upward, and the slider 34 slides upward on the slide rail 33, and finally drives the pressing knife fixing plate 35 and the pressing knife 37 to move upward to the position where the ultrasonic vibration knife 23 of the first sealing component 2 is in contact, and when the driving part 32 presses the area to be sealed of the packaging bag roll film bag, the first stroke is ended.

[0033] Then, the ultrasonic transducer 21 of the second sealing component 3 converts the electrical energy into high-frequency vibration mechanical energy, driving the ultrasonic vibrator 23 to vibrate at a high frequency, and at the same time acts on the roll film of the packaging bag, bonding the bags together through high-frequency vibration, thereby achieving a sealing effect.

[0034] After the sealing is completed, the telescopic end of the driving part 32 extends out, driving the driving connecting plate 38 to move downward, and the slider 34 slides downward on the slide rail 33, and finally drives the pressing knife fixing plate 35 and the pressing knife 37 to return to the initial position downward, and the driving part 32 ends the second stroke.

[0035] After the sealed packaging bag is completed, the bag making equipment continues to transport the film roll, the product flows out of the bag making and sealing device, and then the next sealing process is carried out.

[0036] The embodiments described above are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. A bag making ultrasonic sealing device, characterized in that: include, A bag making machine frame (1), a first sealing component (2) and a second sealing component (3); The first sealing component (2) comprises: an ultrasonic transducer (21) and an ultrasonic vibration knife (23); the ultrasonic transducer (21) is fixed on the bag making machine frame (1), and the ultrasonic vibration knife (23) is arranged on the ultrasonic transducer (21); The second sealing assembly (3) comprises: at least one slide rail (33), a driving portion (32), a driving connecting plate (38), a sliding block (34) corresponding one to the slide rail (33), a pressing knife fixing plate (35), and a pressing knife (37); The slide rail (33) is fixed on the bag making machine frame (1); One end of the driving part (32) is fixed on the bag making machine frame (1), and the other end of the driving part (32) is fixedly connected to the driving connecting plate (38); The driving connecting plate (38) is fixedly connected to the sliding block (34); The slide block (34) is slidably connected to the slide rail (33); The knife pressing fixing plate (35) is fixed on the sliding block (34); The pressing knife (37) is arranged on the pressing knife fixing plate (35); The driving part (32) drives the driving connecting plate (38), the sliding block (34), the pressing knife fixing plate (35) and the pressing knife (37) to move closer to and away from the ultrasonic vibration knife (23).

2. The bag making ultrasonic sealing device according to claim 1, characterized in that: in, The first sealing component (2) further comprises a plurality of heat sinks (22); The radiator (22) is fixed on the bag making machine frame (1) and is located on both sides of the ultrasonic transducer (21) and / or the ultrasonic vibration knife (23).

3. The bag making ultrasonic sealing device according to claim 1, Features: in, The bag making machine frame (1) comprises: an upper frame plate (11), two side frame plates (12) and a lower frame plate (13); The two side frame plates (12) are symmetrically fixed on the lower frame plate (13), and the upper frame plate (11) is fixed on the two side frame plates (12).

4. The bag making ultrasonic sealing device as claimed in claim 3, characterized in that: in, The first sealing component (2) is arranged at the top, and the ultrasonic transducer (21) is fixed on the upper frame plate (11); The second sealing assembly (3) is arranged at the bottom, and one end of the driving part (32) is fixed on the lower frame plate (13); the sliding block (34) passes through the lower frame plate (13) and moves up and down relative to the lower frame plate (13).

5. The bag making ultrasonic sealing device according to claim 4, characterized in that: in, The number of the slide rails (33) is two, and the number of the slide blocks (34) is also two; The two slide rails (33) are symmetrically fixed on the lower frame plate (13).

6. The bag making ultrasonic sealing device according to claim 1, characterized in that: in, The pressing knife (37) is connected to the pressing knife fixing plate (35) via a connecting pin (39).

7. The bag making ultrasonic sealing device according to claim 6, characterized in that: in, Both sides of the pressing knife (37) are provided with horizontal adjustment bolts (38).

8. The bag making ultrasonic sealing device according to claim 1, characterized in that: in, The bag making machine frame (1) is also provided with at least one film rolling guide rod (15).

9. The bag making ultrasonic sealing device according to any one of claims 1 to 8, characterized in that: in, An adjusting slide block (14) is also provided at the bottom of the bag making machine frame (1); the adjusting slide block (14) can slide on a corresponding slide rail.

10. The bag making ultrasonic sealing device according to claim 9, characterized in that: in, The adjusting slide block (14) has a locking assembly (14a) for locking the adjusting slide block (14) on the corresponding slide rail.

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