Circumferential radial vibration multi-equal-division ultrasonic transverse seal welding device and transverse seal welding structure

Abstract

The utility model relates to the technical field of ultrasonic waves, and discloses a circumferential radial vibration multi-equal-division ultrasonic wave transverse sealing welding device and a transverse sealing welding structure, the circumferential radial vibration multi-equal-division ultrasonic wave transverse sealing welding device comprises a welding head, the two sides of the welding head respectively extend outwards to form variable amplitude parts, the variable amplitude parts are connected with an ultrasonic wave vibrator, the periphery of the welding head extends outwards to form a plurality of welding parts, and the variable amplitude parts are connected with the ultrasonic wave vibrator. The welding parts and the welding head are integrally formed, welding surfaces are formed at the outer ends of the welding parts, and the multiple welding parts form a multi-equally-divided structure; the welding head is of a multi-equal-division structure formed by the multiple welding parts, the efficiency of continuous transverse sealing welding can be improved, the structural cost of continuous transverse sealing welding is reduced, the working process of the structure is simple and reasonable, and the stability of the welding process of the welding head can be improved by the ultrasonic vibrator through the variable amplitude part; the problems that the working process of ultrasonic transverse sealing welding is too tedious and the working efficiency is low are solved. The welding efficiency of continuous transverse sealing welding can be improved, the overall structure of transverse sealing welding is optimized, and therefore the welding cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic waves, in particular to a circumferential radial vibration multi-equally divided ultrasonic transverse sealing welder and a transverse sealing welding structure. Background Art

[0002] Ultrasonic welding utilizes a generator to generate a high-voltage, high-frequency signal. This signal is converted into high-frequency mechanical vibrations through a transducer system. This vibration is then applied to the plastic workpiece. Friction between the workpiece surface and internal molecules causes the temperature of the weld to rise. When the temperature reaches the melting point of the workpiece itself, the workpiece interface rapidly melts, filling the gap between the interfaces. When the vibration stops, the workpiece cools and sets under a certain pressure, completing the weld.

[0003] In the prior art, ultrasonic transverse sealing welding is completed by moving the welding surface of an ultrasonic welding head relative to a welding base to complete ultrasonic welding, or by moving the welding surfaces of two ultrasonic welding heads relative to each other to complete ultrasonic welding. This working process is too cumbersome and inefficient, and cannot meet the application requirements of the production market. Utility Model Content

[0004] The purpose of the utility model is to provide a circumferential radial vibration multi-equal-section ultrasonic transverse seal welder and a transverse seal welding structure, aiming to solve the problem in the prior art that the ultrasonic transverse seal welding process is too complicated and the work efficiency is low.

[0005] The present invention is implemented as follows: a circumferential radial vibration multi-equal-division ultrasonic transverse sealing welder includes a welding head, wherein both sides of the welding head respectively extend outwardly with an amplitude-changing portion, the amplitude-changing portion is connected to the ultrasonic vibrator, a plurality of welding portions extend outwardly from the outer periphery of the welding head, the welding portion and the welding head are integrally formed, the inner end of the welding portion is butted against the outer periphery of the welding head, the outer end of the welding portion is formed with a welding surface, and the plurality of welding portions form a multi-equal-division structure.

[0006] Furthermore, side end surfaces are formed on the upper and lower sides of the welding portion respectively, and welding gaps are formed between the side end surfaces of adjacent welding portions, and the welding gaps are located between adjacent welding surfaces.

[0007] Furthermore, the welding portion is flat.

[0008] Furthermore, along the direction from the inner end of the welding portion to the outer end of the welding portion, the left and right sides of the welding portion gradually expand and extend outward, so that the length of the welding surface increases.

[0009] Furthermore, a mounting flange for mounting a welder is provided on the amplitude varying portion.

[0010] Furthermore, the amplitude-changing portion has a large-diameter section and a small-diameter section, the length of the large-diameter section is smaller than that of the small-diameter section, and the large-diameter section and the small-diameter section are butt-jointed in a front-to-back manner.

[0011] Furthermore, the inner ends of the two large-diameter sections are respectively butted against the two sides of the welding joint, and the outer end of the large-diameter section is butted against the inner end of the small-diameter section.

[0012] Furthermore, the inner side of the mounting flange is butted along the outer circumference of the large diameter section, and a plurality of bolt holes are provided on the mounting flange. The plurality of bolt holes are arranged around the circumference of the mounting flange, and the bolt holes are exposed outside the amplitude varying portion.

[0013] Furthermore, a connecting section for connecting to the ultrasonic vibrator is protruded from the outer end of the small-diameter section, the diameter of the connecting section is smaller than the diameter of the small-diameter section, and the connecting section is threadedly connected to the ultrasonic vibrator.

[0014] Compared with the existing technology, the circumferential radial vibration multi-equal-division ultrasonic transverse seal welder provided by the utility model has a multi-equal-division structure formed by a plurality of welding parts of the welding head, which can improve the efficiency of continuous transverse seal welding and reduce the structural cost of continuous transverse seal welding. The working process of this structure is simple and reasonable, and the ultrasonic vibrator can increase the stability of the welding process of the welding head by using the amplitude variation part; it solves the problem that the working process of ultrasonic transverse seal welding is too complicated and the working efficiency is low.

[0015] The present invention also provides a transverse sealing welding structure, comprising the aforementioned circumferential radial vibration multi-equally divided ultrasonic transverse sealing welder, comprising two of the aforementioned circumferential radial vibration multi-equally divided ultrasonic transverse sealing welders, the two welders being arranged side by side and rotating in opposite directions;

[0016] When the welding surfaces of the two welding heads are arranged facing each other, a welding gap is formed for materials to pass through. When the welding surfaces of the welding heads are rotated and separated, the material passes through the welding gap.

[0017] Compared with the prior art, the transverse sealing welding structure provided by the present invention can improve the welding efficiency of continuous transverse sealing welding and optimize the overall structure of transverse sealing welding, thereby reducing welding costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the circumferential radial vibration multi-equal-section ultrasonic transverse sealing welder provided by the utility model;

[0019] Figure 2 This is a side structural diagram of the welding head and the amplitude varying portion provided by the present invention;

[0020] Figure 3 It is a schematic diagram of the structural arrangement of the horizontal sealing welding structure provided by the utility model.

[0021] In the figure: welding head 10, amplitude changing part 20, ultrasonic vibrator 30, welding part 40, mounting flange 50, large diameter section 21, small diameter section 22, connecting section 23, welding surface 41, side end surface 42, welding gap 43, bolt hole 51. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] The implementation of the present invention is described in detail below with reference to specific embodiments.

[0024] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] Reference Figure 1-3 The figure shows a preferred embodiment of the present invention.

[0026] The utility model is implemented as follows: a circumferential radial vibration multi-equal-division ultrasonic transverse sealing welder, comprising a welding head 10, with amplitude-changing parts 20 extending outward on both sides of the welding head 10, the amplitude-changing parts 20 being connected to the ultrasonic vibrator 30, a plurality of welding parts 40 extending outward from the outer periphery of the welding head 10, the welding parts 40 and the welding head 10 being integrally formed, the inner end of the welding part 40 being butted against the outer periphery of the welding head 10, the outer end of the welding part 40 being formed with a welding surface 41, and the plurality of welding parts 40 forming a multi-equal-division structure.

[0027] The circumferential radial vibration multi-section ultrasonic transverse sealing welder provided above has a multi-section structure formed by a plurality of welding parts 40 on the welding head 10, which can improve the efficiency of continuous transverse sealing welding and reduce the structural cost of continuous transverse sealing welding. The working process of this structure is simple and reasonable. The ultrasonic vibrator 30 uses the amplitude variation part 20 to increase the stability of the welding process of the welding head 10; thus solving the problem that the working process of ultrasonic transverse sealing welding is too complicated and the working efficiency is low.

[0028] In this embodiment, side end surfaces 42 are formed on the upper and lower sides of the weld portion 40. Welding gaps 43 are formed between the side end surfaces 42 of adjacent weld portions 40. Welding gaps 43 are located between adjacent weld surfaces 41. In this way, the interval between horizontal seal welds can be varied by changing the arc distance of welding gaps 43, thereby expanding the applicability of the horizontal seal welder.

[0029] In this embodiment, the welding portion 40 is flat, so as to ensure that when the welding head 10 rotates one circle, when the two welding portions 40 are selected to the set position, a welding gap can be formed for the material to pass through.

[0030] In this embodiment, the left and right sides of the welding portion 40 gradually expand and extend outward from the inner end of the welding portion 40 to the outer end of the welding portion 40, thereby increasing the length of the welding surface 41. This design of the welding head 10 has the characteristics of overall structural stability, increased welding surface area 41, and uniform force at all positions when the welding surface 41 is pressed downward.

[0031] In this embodiment, a mounting flange 50 for mounting a welder is provided on the amplitude changing portion 20. Thus, the amplitude changing portion 20 can be positioned and mounted by the mounting flange 50, thereby achieving control over the rotational position of the welding head 10.

[0032] In this embodiment, the amplitude varying portion 20 has a large diameter section 21 and a small diameter section 22 . The length of the large diameter section 21 is smaller than that of the small diameter section 22 . The large diameter section 21 and the small diameter section 22 are butt-jointed in a front-to-back manner.

[0033] Along the extension direction of the amplitude variation portion 20, the amplitude variation portion 20 can concentrate the ultrasonic energy into a smaller area, thereby improving the efficiency and accuracy of ultrasonic processing. At the same time, since the middle part of the amplitude variation portion 20 has two successively decreasing diameter sections, the amplitude and direction of the ultrasonic vibration can be changed by adjusting the length and diameter of the amplitude variation portion 20 according to different processing requirements, making the ultrasonic processing more flexible and changeable, and avoiding distortion. The large-diameter section 21 and the small-diameter section 22 are arranged in sequence front and back, which can ensure that the ultrasonic waves are continuously coherently superimposed during the transmission process, avoiding distortion, and improving the effect and quality of ultrasonic processing.

[0034] In this embodiment, the inner ends of the two large-diameter sections 21 are butted against each other on either side of the welding head 10, while the outer ends of the large-diameter sections 21 are butted against the inner ends of the small-diameter sections 22. In this way, the amplitude-variable section 20 can enhance the vibration amplitude of the ultrasonic vibrator 30, thereby improving its operating efficiency. By adjusting the amplitude, the amplitude-variable section 20 helps increase the vibration speed ratio of the ultrasonic vibrator 30, which means it can generate greater energy output in a shorter period of time.

[0035] In this embodiment, the inner side of the mounting flange 50 is butted against the outer circumference of the large-diameter section 21. The mounting flange 50 is provided with a plurality of bolt holes 51, which are arranged around the circumference of the mounting flange 50 and exposed to the outside of the amplitude-changing portion 20. In this manner, the plurality of bolt holes 51 on the mounting flange 50 can be penetrated by a plurality of bolts, so that the mounting flange 50 can position the welding head 10 for use.

[0036] In this embodiment, a connecting section 23 for connecting to the ultrasonic vibrator 30 is protruded from the outer end of the small-diameter section 22. The connecting section 23 has a diameter smaller than that of the small-diameter section 22 and is threadedly connected to the ultrasonic vibrator 30. This facilitates the connection and installation of the ultrasonic vibrator 30 to the amplitude-changing portion 20 via the connecting section 23.

[0037] The utility model also provides a transverse sealing welding structure, comprising the above-mentioned circumferential radial vibration multi-equal-division ultrasonic transverse sealing welder, comprising two circumferential radial vibration multi-equal-division ultrasonic transverse sealing welders, the two welders being arranged side by side and rotating in opposite directions;

[0038] When the welding surfaces 41 of the two welding heads 10 are arranged to face each other, a welding gap is formed for the material to pass through. When the welding surfaces 41 of the welding heads 10 rotate and separate, the material passes through the welding gap.

[0039] Compared with the prior art, the transverse sealing welding structure provided by the present invention can improve the welding efficiency of continuous transverse sealing welding and optimize the overall structure of transverse sealing welding, thereby reducing welding costs.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Circumferential radial vibration multi-equal-section ultrasonic horizontal sealing welder, characterized in that: It includes a welding head, and each side of the welding head has an amplitude-changing portion extending outward, and the amplitude-changing portion is connected to the ultrasonic vibrator. A plurality of welding portions extend outward from the periphery of the welding head, and the welding portions are integrally formed with the welding head. The inner end of the welding portion is butted against the periphery of the welding head, and a welding surface is formed at the outer end of the welding portion. The plurality of welding portions form a multi-equally divided structure.

2. The circumferential radial vibration multi-section ultrasonic horizontal sealing welder according to claim 1, characterized in that: Side end surfaces are formed on the upper and lower sides of the welding portion respectively. A welding gap is formed between the side end surfaces of adjacent welding portions, and the welding gap is located between adjacent welding surfaces.

3. The circumferential radial vibration multi-section ultrasonic horizontal sealing welder according to claim 1, characterized in that: The welding portion is flat.

4. The circumferential radial vibration multi-section ultrasonic transverse sealing welder according to claim 3, characterized in that: Along the direction from the inner end to the outer end of the welding portion, the left and right sides of the welding portion gradually expand and extend outward, so that the length of the welding surface increases.

5. The circumferential radial vibration multi-section ultrasonic horizontal sealing welder according to any one of claims 1 to 4, characterized in that: The amplitude varying portion is provided with a mounting flange for mounting a welding device.

6. The circumferential radial vibration multi-section ultrasonic horizontal sealing welder according to claim 5, characterized in that: The amplitude-changing portion is provided with a large-diameter section and a small-diameter section. The length of the large-diameter section is smaller than that of the small-diameter section. The large-diameter section and the small-diameter section are butt-jointed in a front-to-back manner.

7. The circumferential radial vibration multi-section ultrasonic horizontal sealing welder according to claim 6, characterized in that: The inner ends of the two large-diameter sections are respectively butted against two sides of the welding joint, and the outer end of the large-diameter section is butted against the inner end of the small-diameter section.

8. The circumferential radial vibration multi-section ultrasonic horizontal sealing welder according to claim 7, characterized in that: The inner side of the mounting flange is butted against the outer circumference of the large diameter section. The mounting flange is provided with a plurality of bolt holes, which are arranged around the circumference of the mounting flange and exposed outside the amplitude varying portion.

9. The circumferential radial vibration multi-section ultrasonic horizontal sealing welder according to claim 8, characterized in that: A connecting section for connecting with an ultrasonic vibrator is protruded from the outer end of the small-diameter section. The diameter of the connecting section is smaller than that of the small-diameter section. The connecting section is threadedly connected with the ultrasonic vibrator.

10. Horizontal seal welding structure, characterized in that, The circumferential radial vibration multi-section ultrasonic transverse sealing welder according to any one of claims 1 to 9 comprises two of the circumferential radial vibration multi-section ultrasonic transverse sealing welders, the two welders are arranged side by side, and the two welders rotate in opposite directions; When the welding surfaces of the two welding heads are arranged facing each other, a welding gap is formed for materials to pass through. When the welding surfaces of the welding heads are rotated and separated, the material passes through the welding gap.

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