Heat sealing and ultrasonic cutting composite structure

Abstract

The utility model relates to the technical field of ultrasonic waves, and discloses a heat sealing and ultrasonic cutting composite structure, which comprises two heat sealing heads, a packaging bag is subjected to heat sealing to form two heat sealing belts, the two heat sealing heads are arranged at an interval to form a heat sealing interval, and a connecting section is arranged between the two heat sealing belts. An ultrasonic welding structure for cutting off the connecting section is arranged on the outer side of the connecting section; when the two heat sealing heads are used for hot-pressing the end of the packaging bag to form the heat sealing belts, the connecting section between the two heat sealing belts is cut off through the ultrasonic welding structure, so that the edge of the cut-off connecting section is heated by residual heat emitted by the peripheries of the heat sealing heads, burrs on the edge of the connecting section are melted, and the heat sealing efficiency is improved. Through the set temperature of the ultrasonic welding structure, wiredrawing on the edge of the connecting section can be avoided, and the problem that wiredrawing or burrs are prone to occurring in the slitting process of the packaging bag is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of ultrasonics, and more specifically, to a composite structure of heat sealing and ultrasonic cutting. Background Technology

[0002] Existing packaging machinery uses electric heating for continuous longitudinal or transverse sealing. When packaging bags, electric heating is used to seal them so that the ends of the bags are heat-pressed and welded to the heating device. It is also necessary to cut the bags between the two bags.

[0003] Existing packaging machines typically heat-press the packaging bags before slitting them. Due to material and thickness issues, some packaging bags develop burrs at the ends after slitting, or experience stringing during high-temperature slitting, thus affecting the quality of the finished packaging product. Utility Model Content

[0004] The purpose of this invention is to provide a composite structure of heat sealing and ultrasonic cutting, which aims to solve the problem that packaging bags are prone to stringing or burrs during cutting in the prior art.

[0005] This utility model is implemented as follows: a heat-sealing and ultrasonic cutting composite structure includes two heat-sealing heads that heat-seal the packaging bag to form two heat-sealing strips. The two heat-sealing heads are arranged at intervals to form a heat-sealing interval. There is a connecting section between the two heat-sealing strips. An ultrasonic welding structure for cutting the connecting section is provided on the outside of the connecting section.

[0006] Furthermore, the ultrasonic welding structure includes a fixed base and a movable welding head that is movably disposed in the heat-sealing interval. The movable welding head is arranged opposite to the fixed base, and the fixed base is fixedly arranged.

[0007] When the movable welding head is arranged facing the fixed base, a welding gap is formed for material to pass through.

[0008] Furthermore, the fixing base is a fixed welding head, and a second transducer is connected to the fixed welding head.

[0009] Furthermore, the fixing seat is arranged opposite to the two heat sealing heads;

[0010] When the two heat-sealing heads are arranged facing each other with the fixed base, a welding gap is formed for material to pass through.

[0011] Furthermore, the movable welding head is arranged in a flat shape.

[0012] Furthermore, a first transducer is connected to the movable welding head.

[0013] Furthermore, the first transducer is connected to a first driver that drives the moving welding head to move toward the fixed base.

[0014] Furthermore, the heat sealing head is connected to a second driver that drives the two heat sealing heads to move synchronously toward the fixed base.

[0015] Furthermore, the movable welding head is arranged at a distance from the two heat sealing heads.

[0016] Furthermore, the fixing base has a fixed end face facing the movable welding head, and the fixed end face is respectively arranged opposite to the two heat sealing heads;

[0017] When the two heat sealing heads press the packaging bag against the fixed end face for heat sealing, the two heat sealing strips are located between the fixed end face and the two heat sealing heads, and the connecting section is arranged opposite to the heat sealing interval.

[0018] Compared with the prior art, the heat-sealing and ultrasonic cutting composite structure provided by this utility model heat-presses the ends of the packaging bag into heat-sealed strips through two heat-sealing heads, and then cuts the connecting section between the two heat-sealed strips through an ultrasonic welding structure. This allows the edge of the cut connecting section to be heated by the residual heat radiating from the heat-sealing heads, melting the burrs on the edge of the connecting section. The set temperature of the ultrasonic welding structure can prevent the connecting section edge from stringing, thus solving the problem of stringing or burrs that easily occur when the packaging bag is cut. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the static state structure of the heat-sealing and ultrasonic cutting composite structure provided by this utility model;

[0020] Figure 2 This is a schematic diagram of the working state of the heat sealing and ultrasonic cutting composite structure provided by this utility model.

[0021] In the figure: heat sealing head 10, ultrasonic welding structure 20, packaging bag 30, heat sealing interval 11, second driver 12, fixed base 21, moving welding head 22, first transducer 23, first driver 24, second transducer 25, fixed end face 26, heat sealing strip 31, connecting section 32. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] Reference Figure 1-2 The image shown is a preferred embodiment of the present invention.

[0026] The heat-sealing and ultrasonic cutting composite structure includes two heat-sealing heads 10 that heat-seal the packaging bag 30 to form two heat-sealing strips 31. The two heat-sealing heads 10 are arranged at intervals to form a heat-sealing interval 11. There is a connecting section 32 between the two heat-sealing strips 31. An ultrasonic welding structure 20 is provided on the outside of the connecting section 32 to cut the connecting section 32.

[0027] The heat-sealing and ultrasonic cutting composite structure provided above uses two heat-sealing heads 10 to heat-press the ends of the packaging bag 30 into heat-sealed strips 31, and then uses an ultrasonic welding structure 20 to cut the connecting section 32 between the two heat-sealed strips 31. This allows the edges of the cut connecting section 32 to be heated by the residual heat radiating from the heat-sealing heads 10, melting the burrs on the edges of the connecting section 32. The set temperature of the ultrasonic welding structure 20 can prevent the edges of the connecting section 32 from becoming stringy, thus solving the problem of stringing or burrs easily occurring when the packaging bag 30 is cut.

[0028] In this embodiment, the ultrasonic welding structure 20 includes a fixed base 21 and a movable welding head 22 that is movably disposed in the heat sealing interval 11. The movable welding head 22 is arranged opposite to the fixed base 21, and the fixed base 21 is fixedly arranged.

[0029] When the movable welding head 22 is arranged facing the fixed base 21, a welding gap is formed for material to pass through.

[0030] The ultrasonic welding structure 20, through the fixed base 21, allows two heat sealing heads 10 to heat-press the end of the packaging bag 30, thereby improving the stability of the heat-press welding.

[0031] The ultrasonic welding structure 20 can perform low-temperature segment cutting and connection of the connecting segment 32 using the moving welding head 22, thus avoiding the occurrence of wire pulling in the connecting segment 32.

[0032] In this embodiment, the fixed base 21 is a fixed welding head, and a second transducer 25 is connected to the fixed welding head. In this way, the fixed welding head can melt the burrs and wires that appear on the edge of the connecting segment 32 when it is cut relative to the moving welding head 22.

[0033] In this embodiment, the fixing seat 21 is arranged opposite to the two heat sealing heads 10;

[0034] When the two heat-sealing heads 10 are arranged facing each other with the fixing seat 21, a welding gap is formed for the material to pass through. In this way, the fixing seat 21 can support the ends of the packaging bag 30 by the heat-sealing heads 10, thereby improving the stability of the heat-sealing welding.

[0035] In this embodiment, the movable welding head 22 is arranged in a flat shape. This facilitates the improvement of the stability of the movable welding head 22 when cutting the connecting segment 32.

[0036] A first transducer 23 is connected to the movable welding head 22.

[0037] In this embodiment, a first driver 24 is connected to the first transducer 23 to drive the movable welding head 22 to move toward the fixed base 21. In this way, the first driver 24 can drive the first transducer 23 to move the movable welding head 22 to cut the connecting segment 32.

[0038] In this embodiment, a second driver 12 is connected to the heat sealing head 10 to drive the two heat sealing heads 10 to move synchronously toward the fixed base 21. In this way, the second driver 12 can drive the two heat sealing heads 10 to synchronously heat-press the packaging bag 30.

[0039] In this embodiment, the movable welding head 22 is arranged at a distance from the two heat sealing heads 10. This avoids affecting the movement of the movable welding head 22 and prevents the two heat sealing heads 10 from transferring high temperatures to the movable welding head 22.

[0040] The fixed base 21 has a fixed end face 26 facing the movable welding head 22, and the fixed end face 26 is arranged opposite to the two heat sealing heads 10 respectively;

[0041] When the two heat sealing heads 10 respectively press the packaging bag 30 against the fixed end face 26 for heat sealing, the two heat sealing strips 31 are respectively located between the fixed end face 26 and the two heat sealing heads 10, and the connecting section 32 is arranged opposite to the heat sealing interval 11.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A composite structure combining heat sealing and ultrasonic cutting, characterized in that, It includes two heat-sealing heads that heat-seal a packaging bag to form two heat-sealing strips. The two heat-sealing heads are arranged at intervals to form a heat-sealing gap. There is a connecting section between the two heat-sealing strips. An ultrasonic welding structure is provided on the outside of the connecting section to cut off the connecting section.

2. The heat-sealing and ultrasonic cutting composite structure as described in claim 1, characterized in that, The ultrasonic welding structure includes a fixed base and a movable welding head that is movably disposed in the heat-sealing interval. The movable welding head is arranged opposite to the fixed base, and the fixed base is fixedly arranged. When the movable welding head is arranged facing the fixed base, a welding gap is formed for material to pass through.

3. The heat-sealing and ultrasonic cutting composite structure as described in claim 2, characterized in that, The mounting base is a fixed welding head, and a second transducer is connected to the fixed welding head.

4. The heat-sealing and ultrasonic cutting composite structure as described in any one of claims 2 to 3, characterized in that, The fixing seat is arranged opposite to the two heat sealing heads; When the two heat-sealing heads are arranged facing each other with the fixed base, a welding gap is formed for material to pass through.

5. The heat-sealing and ultrasonic cutting composite structure as described in claim 4, characterized in that, The movable welding head is arranged in a flat shape.

6. The heat-sealing and ultrasonic cutting composite structure as described in claim 5, characterized in that, The movable welding head is connected to a first transducer.

7. The heat-sealing and ultrasonic cutting composite structure as described in claim 6, characterized in that, The first transducer is connected to a first driver that drives the moving welding head to move toward the fixed base.

8. The heat-sealing and ultrasonic cutting composite structure as described in claim 7, characterized in that, The heat sealing head is connected to a second driver that drives the two heat sealing heads to move synchronously toward the fixed base.

9. The heat-sealing and ultrasonic cutting composite structure as described in claim 8, characterized in that, The movable welding head is arranged at intervals relative to the two heat sealing heads.

10. The heat-sealing and ultrasonic cutting composite structure as described in claim 9, characterized in that, The fixed base has a fixed end face facing the movable welding head, and the fixed end face is arranged opposite to the two heat sealing heads respectively; When the two heat sealing heads press the packaging bag against the fixed end face for heat sealing, the two heat sealing strips are located between the fixed end face and the two heat sealing heads, and the connecting section is arranged opposite to the heat sealing interval.

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