Ultrasonic sealing device

Abstract

The utility model provides an ultrasonic sealing device which comprises a support, an upper sealing assembly, a lower sealing assembly and a driving assembly. The upper sealing assembly, the lower sealing assembly and the driving assembly are arranged on the support. The upper sealing assembly is movably arranged on the support and provided with an upper clamping plate and movable rolling wheels. The lower sealing assembly is movably arranged on the support and provided with a lower clamping plate and an ultrasonic die head. The driving assembly is connected with the upper sealing assembly and the lower sealing assembly to drive the upper sealing assembly and the lower sealing assembly to be close to or away from a packaging bag between the upper sealing assembly and the lower sealing assembly, when the upper sealing assembly and the lower sealing assembly are close to each other, the upper clamping plate and the lower clamping plate jointly clamp a bag opening of the packaging bag, and the rolling wheel and the ultrasonic die head jointly clamp a sealing opening of the packaging bag. And the roller rolls along the ultrasonic die head to roll the sealing part of the packaging bag on the ultrasonic die head. The ultrasonic sealing device is simple in structure and smooth in sealing, and the sealing position can bear large lifting force.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging, and particularly relates to an ultrasonic sealing device. Background Art

[0002] In the sealing technology of packaging bags, common ones include heat sealing, cold sealing, ultrasonic sealing, etc. Ultrasonic sealing utilizes the vibration energy generated by high-frequency vibration, and acts on the sealing part of the packaging container with an ultrasonic concentrator to achieve sealing.

[0003] The ultrasonic sealing device in the related technology has a complex structure, and wrinkles are likely to appear at the sealed part after sealing, affecting the overall aesthetics and packaging strength of the packaging bag. Therefore, it is necessary to improve the ultrasonic sealing device. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems in the above technologies to some extent. For this purpose, the purpose of the utility model is to provide an ultrasonic sealing device, which has a simple structure, a flat seal, and the sealed part can withstand a large pulling force.

[0005] To achieve the above purpose, the utility model provides an ultrasonic sealing device, which includes: a bracket, an upper sealing component, a lower sealing component and a driving component arranged on the bracket;

[0006] The upper sealing component is movably arranged on the bracket, and the upper sealing component has an upper clamping plate and a movable roller;

[0007] The lower sealing component is movably arranged on the bracket, and the lower sealing component has a lower clamping plate and an ultrasonic die head;

[0008] The driving component is connected to the upper sealing component and the lower sealing component to drive the upper sealing component and the lower sealing component to approach or move away from the packaging bag therebetween. When the upper sealing component and the lower sealing component approach each other, the upper clamping plate and the lower clamping plate jointly clamp the bag mouth of the packaging bag, and the roller and the ultrasonic die head jointly clamp the sealed part of the packaging bag, and the roller rolls along the ultrasonic die head to roll press the sealed part of the packaging bag on the ultrasonic die head.

[0009] According to an ultrasonic sealing device of an embodiment of the utility model, the bag mouth of the packaging bag is clamped by the upper clamping plate of the upper sealing component and the lower clamping plate of the lower sealing component, so that the sealed part of the packaging bag is fixed on the ultrasonic die head, and the roller of the upper sealing component rolls along the ultrasonic die head on the sealed part of the packaging bag, thereby forming a sealing operation. This ultrasonic sealing device has a simple structure, a flat seal, and the sealed part can withstand a large pulling force.

[0010] In addition, an ultrasonic sealing device according to the above embodiments of the present utility model may further have the following additional technical features:

[0011] Optionally, the driving assembly has a first link driving member and a second link driving member. The first link driving member and the second link driving member are respectively connected to the upper sealing assembly and the lower sealing assembly to drive the upper sealing assembly and the lower sealing assembly to approach or move away from the packaging bag therebetween.

[0012] Optionally, the upper sealing assembly includes a first mounting plate movably disposed on the bracket. The upper clamping plate and the movable roller are provided on the first mounting plate, and the first mounting plate is connected to the output end of the first link driving member.

[0013] Optionally, the lower sealing assembly includes a second mounting plate movably disposed on the bracket. The lower clamping plate is provided on the second mounting plate, and the second mounting plate is connected to the output end of the second link.

[0014] Further, the first link driving member has a first rotary driving member, a first connecting rod and a second connecting rod. The output end of the first rotary driving member is fixedly connected to the first connecting rod. The first connecting rod is hinged to the second connecting rod, and the second connecting rod is hinged to the first mounting plate.

[0015] Further, the second link driving member has a second rotary driving member, a third connecting rod and a fourth connecting rod. The second rotary driving member is fixedly connected to the third connecting rod. The third connecting rod is hinged to the fourth connecting rod, and the fourth connecting rod is hinged to the second mounting plate.

[0016] Optionally, the outer peripheral surface of the roller is provided with a portion that can abut the sealing portion of the packaging bag against the protruding portion of the ultrasonic die head.

[0017] Further, the protruding portion has a first inclined convex block, a second inclined convex block and a straight convex block. The first inclined convex block and the second inclined convex block are mirror-symmetrically distributed on two opposite sides of the straight convex block.

[0018] Further, the upper clamping plate and the lower clamping plate are both provided with a plurality of adsorption holes. The plurality of adsorption holes are adapted to adsorb the two outer sides of the bag mouth of the packaging bag when the upper clamping plate and the lower clamping plate approach the packaging bag.

[0019] Optionally, the upper clamping plate protrudes from the rolling surface of the roller, and the upper clamping plate can be elastically telescoped. Description of the Drawings

[0020] Figure 1Schematic diagram of an ultrasonic sealing device according to an embodiment of the present utility model;

[0021] Figure 2 is Figure 1 Schematic diagram of the structure from another perspective;

[0022] Figure 3 is Figure 2 Enlarged view of part A of

[0023] Figure 4 is Figure 3 Enlarged view of part B of

[0024] Explanation of reference numerals:

[0025] Bracket 1, upper sealing assembly 2, upper clamping plate 21, roller 22, protruding part 221, first inclined convex block 2211, second inclined convex block 2212, straight convex block 2213, first mounting plate 23, lower sealing assembly 3, lower clamping plate 31, second mounting plate 32, ultrasonic die head 33, driving assembly 4, first link driving member 41, first rotary driving member 411, first connecting rod 412, second connecting rod 413, second link driving member 42, second rotary driving member 421, third connecting rod 422, fourth connecting rod 423, adsorption hole 5. Detailed implementation manners

[0026] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0027] In order to better understand the above technical solutions, the exemplary embodiments of the present utility model will be described in more detail below with reference to the drawings. Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present utility model can be more thoroughly understood and the scope of the present utility model can be fully conveyed to those skilled in the art.

[0028] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings of the specification and the specific implementation manners.

[0029] The following refers to Figures 1-4 to describe in detail the implementation of the ultrasonic sealing device according to the embodiments of the present utility model.

[0030] The ultrasonic sealing device according to an embodiment of the present utility model includes: a bracket 1, an upper sealing assembly 2, a lower sealing assembly 3, and a driving assembly 4 provided on the bracket 1;

[0031] Specifically, the upper sealing assembly 2 is movably provided on the bracket 1. The upper sealing assembly 2 has an upper clamping plate 21 and a movable roller 22. The lower sealing assembly 3 is movably provided on the bracket 1. The lower sealing assembly 3 has a lower clamping plate 31 and an ultrasonic die head 33. The driving assembly 4 is connected to the upper sealing assembly 2 and the lower sealing assembly 3 to drive the upper sealing assembly 2 and the lower sealing assembly 3 to approach or move away from the packaging bag therebetween. When the upper sealing assembly 2 and the lower sealing assembly 3 approach each other, the upper clamping plate 21 and the lower clamping plate 31 jointly clamp the mouth of the packaging bag, and the roller 22 and the ultrasonic die head 33 jointly clamp the sealing portion of the packaging bag. The roller 22 rolls along the ultrasonic die head 33 to roll-press the sealing portion of the packaging bag onto the ultrasonic die head 33.

[0032] That is to say, the driving assembly 4 drives the upper sealing assembly 2 and the lower sealing assembly 3 to approach or move away from the packaging bag therebetween, so that the upper sealing assembly 2 drives the upper clamping plate 21 and the roller 22 to synchronously move from the upper side of the packaging bag towards the packaging bag. At the same time, the lower sealing assembly 3 drives the lower clamping plate 31 and the ultrasonic die head 33 to synchronously move from the lower side of the packaging bag towards the packaging bag, so that the upper clamping plate 21 and the lower clamping plate 31 jointly clamp the mouth of the packaging bag to fix the mouth of the packaging bag. The roller 22 and the ultrasonic die head 33 jointly clamp the sealing portion of the packaging bag. The roller 22 abuts the sealing portion of the packaging bag against the ultrasonic die head 33 and rolls along the ultrasonic die head 33, so that the sealing portion of the packaging bag is roll-pressed onto the ultrasonic die head 33 to complete the sealing operation of the sealing portion of the packaging bag.

[0033] Thus, by clamping the mouth of the packaging bag by the upper clamping plate 21 of the upper sealing assembly 2 and the lower clamping plate 31 of the lower sealing assembly 3, the sealing portion of the packaging bag is fixed on the ultrasonic die head 33, and the roller 22 of the upper sealing assembly 2 roll-presses the sealing portion of the packaging bag along the ultrasonic die head 33, thereby forming a sealing operation. This ultrasonic sealing device has a simple structure, a flat seal, and the sealing portion can withstand a large pulling force.

[0034] For the driving component 4, the driving component 4 has a first link driving member 41 and a second link driving member 42. The first link driving member 41 and the second link driving member 42 are respectively connected to the upper sealing component 2 and the lower sealing component 3 to drive the upper sealing component 2 and the lower sealing component 3 to approach or move away from the packaging bag therebetween. It can be understood that by arranging the first link driving member 41 and the second link driving member 42, it is convenient for the upper sealing component 2 and the first link driving member 41 to form the upper half part, and the lower sealing component 3 and the second link driving member 42 to form the lower half part. When the upper sealing component 2 and the lower sealing component 3 can approach or move away from each other, the layout is more reasonable, the transmission distance is shortened, and the actions of the upper sealing component 2 and the lower sealing component 3 are correspondingly faster.

[0035] For the upper sealing component 2, the upper sealing component 2 includes a first mounting plate 23. The first mounting plate 23 is movably arranged on the bracket 1. An upper clamping plate 21 and a movable roller 22 are arranged on the first mounting plate 23. The first mounting plate 23 is connected to the output end of the first link driving member 41. It can be understood that by movably arranging the first mounting plate 23, it is convenient for the first link driving member 41 to drive the first mounting plate 23 to move towards the lower sealing component 3, so that the upper clamping plate 21 and the roller 22 move towards the lower clamping plate 31 synchronously with the first mounting plate 23, facilitating the subsequent sealing operation. The first mounting plate 23 can be connected to the bracket 1 through a moving pair.

[0036] For the lower sealing component 3, the lower sealing component 3 includes a second mounting plate 32. The second mounting plate 32 is movably arranged on the bracket 1. A lower clamping plate 31 is arranged on the second mounting plate 32. The second mounting plate 32 is connected to the output end of the second link. It can be understood that by movably arranging the second mounting plate 32, it is convenient for the second link driving member 42 to drive the second mounting plate 32 to move towards the upper sealing component 2, so that the lower clamping plate 31 moves towards the upper clamping plate 21 synchronously with the second mounting plate 32, facilitating the subsequent sealing operation. The second mounting plate 32 can be connected to the bracket 1 through a moving pair.

[0037] For the first link drive 41, the first link drive 41 includes a first rotary drive 411, a first connecting rod 412, and a second connecting rod 413. The output end of the first rotary drive 411 is fixedly connected to the first connecting rod 412. The first connecting rod 412 is hinged to the second connecting rod 413, and the second connecting rod 413 is hinged to the first mounting plate 23. Understandably, through the cooperation of the first rotary drive 411, the first connecting rod 412, and the second connecting rod 413, a link structure can be easily formed to drive the first mounting plate 23 to move up and down. Among them, the first rotary drive 411 can be a motor, and the second connecting rod 413 can be a structure with an adjustable length, which is convenient for adjusting the up and down movement distance of the upper sealing assembly 2 to adjust the closing degree between the upper clamping plate 21 and the lower clamping plate 31, or to adjust the closing degree between the roller 22 and the ultrasonic die head 33, or to facilitate the adjustment of the clamping center of the upper clamping plate 21 and the lower clamping plate 31 to be on the same horizontal line as the clamping center of the roller 22 and the ultrasonic die head 33.

[0038] For the second link drive 42, the second link drive 42 includes a second rotary drive 421, a third connecting rod 422, and a fourth connecting rod 423. The second rotary drive 421 is fixedly connected to the third connecting rod 422. The third connecting rod 422 is hinged to the fourth connecting rod 423, and the fourth connecting rod 423 is hinged to the second mounting plate 32. Understandably, through the cooperation of the second rotary drive 421, the third connecting rod 422, and the fourth connecting rod 423, a link structure can be easily formed to drive the second mounting plate 32 to move up and down. Among them, the second rotary drive 421 can be a motor, and the fourth connecting rod 423 can be a structure with an adjustable length, which is convenient for adjusting the up and down movement distance of the lower sealing assembly 3 to adjust the closing degree between the lower clamping plate 31 and the upper clamping plate 21, or to adjust the closing degree between the ultrasonic die head 33 and the roller 22, or to facilitate the adjustment of the clamping center of the roller 22 and the ultrasonic die head 33 to be on the same horizontal line as the clamping center of the lower clamping plate 31 and the upper clamping plate 21.

[0039] For the roller 22, a convex portion 221 is provided on the outer peripheral surface of the roller 22, which can abut the sealing portion of the packaging bag against the ultrasonic die head 33. Understandably, through the setting of the convex portion 221, it is convenient to more fully roll the sealing portion of the packaging bag on the ultrasonic die head 33, so that under the action of the ultrasonic die head 33, the two inner sides of the sealing portion of the packaging bag are bonded together by the extrusion of the convex portion 221 to form a seal. Among them, the movement of the roller 22 can be realized by a motor cooperating with a lead screw structure. The roller 22 can be made of rubber material, and the convex portion 221 can be composed of a plurality of convex blocks surrounding the roller 22.

[0040] For the protrusion 221, the protrusion 221 has a first inclined protrusion 2211, a second inclined protrusion 2212, and a straight protrusion 2213. The first inclined protrusion 2211 and the second inclined protrusion 2212 are mirror - symmetrically distributed on two opposite sides of the straight protrusion 2213. Understandably, the first inclined protrusion 2211 and the second inclined protrusion 2212 being mirror - symmetrically distributed on two opposite sides of the straight protrusion 2213 facilitates the formation of three adhesive lines at the sealing portion of the packaging bag, making the sealing of the packaging bag more firm, improving the pulling ability at the sealing portion, and while ensuring the adhesion, reducing the overall width of the three adhesive lines at the same time to avoid the sealing portion occupying too much space. Among them, the first inclined protrusion 2211, the second inclined protrusion 2212, and the straight protrusion 2213 can be integrally formed on the roller 22.

[0041] For the upper clamping plate 21 and the lower clamping plate 31, both the upper clamping plate 21 and the lower clamping plate 31 are provided with a plurality of adsorption holes 5. The plurality of adsorption holes 5 are adapted to adsorb the two outer sides of the bag mouth of the packaging bag in a one - to - one correspondence when the upper clamping plate 21 and the lower clamping plate 31 approach the packaging bag. Understandably, by providing the adsorption holes 5, the two outer sides of the bag mouth of the packaging bag can be adsorbed during the process of clamping the packaging bag by the upper clamping plate 21 and the lower clamping plate 31, thus playing a role in shaping, making the upper and lower surfaces of the bag mouth aligned, and facilitating the aesthetics of the subsequent sealing appearance. Among them, the adsorption holes 5 can also be used as air outlet holes. After the sealing is completed, the packaging bag may adhere to the ultrasonic die head 33 or the upper clamping plate 21 and the upper clamping plate 21. By blowing air, the adhered packaging bag can be blown to break away from the adhered state.

[0042] Regarding the relative position between the upper clamping plate 21 and the roller 22, the upper clamping plate 21 protrudes from the rolling surface of the roller 22, and the upper clamping plate 21 is elastically telescopic. Understandably, due to the upper clamping plate 21 protruding from the rolling surface of the roller 22, when the upper clamping plate 21 and the roller 22 move synchronously towards the packaging bag, the upper clamping plate 21 can first contact the packaging bag. After the upper clamping plate 21 and the lower clamping plate 31 clamp the packaging bag, it can elastically contract, facilitating the roller 22 to continue moving towards the ultrasonic die head 33 and pressing the packaging bag against the ultrasonic die head 33. It is also possible that the upper clamping plate 21 first approaches the packaging bag and adsorbs the upper side of the packaging bag, shapes the packaging bag, and then cooperates with the lower clamping plate 31 to adsorb the lower side of the packaging bag to clamp the bag mouth of the packaging bag. Among them, the elastic telescoping of the upper clamping plate 21 can be achieved by the cooperation of a sliding rod and a spring.

[0043] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0044] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0045] In the present utility model, unless otherwise clearly specified and defined, terms such as "installed", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0047] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0048] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. An ultrasonic sealing device, characterized in that: include: A bracket, an upper sealing assembly, a lower sealing assembly and a driving assembly arranged on the bracket; The upper sealing assembly is movably arranged on the bracket, and the upper sealing assembly comprises an upper clamping plate and a movable roller; The lower sealing assembly is movably arranged on the bracket, and the lower sealing assembly comprises a lower clamping plate and an ultrasonic die head; The driving assembly connects the upper sealing assembly and the lower sealing assembly to drive the upper sealing assembly and the lower sealing assembly to move closer to or away from the packaging bag therebetween; when the upper sealing assembly and the lower sealing assembly move closer to each other, the upper clamping plate and the lower clamping plate jointly clamp the bag opening of the packaging bag, and the roller and the ultrasonic die head jointly clamp the sealing portion of the packaging bag, and the roller rolls along the ultrasonic die head to roll the sealing portion of the packaging bag onto the ultrasonic die head.

2. The ultrasonic sealing device according to claim 1, characterized in that: The driving assembly comprises a first connecting rod driving member and a second connecting rod driving member, wherein the first connecting rod driving member and the second connecting rod driving member are connected to the upper sealing assembly and the lower sealing assembly in a one-to-one correspondence so as to drive the upper sealing assembly and the lower sealing assembly to move closer to or away from the packaging bag therebetween.

3. The ultrasonic sealing device according to claim 2, characterized in that: The upper sealing assembly includes a first mounting plate, which is movably disposed on the bracket, and on which the upper clamping plate and the movable roller are arranged, and the first mounting plate is connected to the output end of the first connecting rod driving member.

4. The ultrasonic sealing device according to claim 2, characterized in that: The lower sealing assembly comprises a second mounting plate, the second mounting plate is movably arranged on the bracket, the lower clamping plate is arranged on the second mounting plate, and the second mounting plate is connected to the output end of the second connecting rod.

5. The ultrasonic sealing device according to claim 3, characterized in that: The first connecting rod driving member comprises a first rotating driving member, a first connecting rod and a second connecting rod. The output end of the first rotating driving member is fixedly connected to the first connecting rod. The first connecting rod is hinged to the second connecting rod. The second connecting rod is hinged to the first mounting plate.

6. The ultrasonic sealing device according to claim 4, characterized in that: The second connecting rod driving member has a second rotating driving member, a third connecting rod and a fourth connecting rod. The second rotating driving member is fixedly connected to the third connecting rod. The third connecting rod is hinged to the fourth connecting rod. The fourth connecting rod is hinged to the second mounting plate.

7. The ultrasonic sealing device according to claim 1, characterized in that: A protrusion is provided on the outer peripheral surface of the roller, which can abut the sealing portion of the packaging bag against the ultrasonic die head.

8. The ultrasonic sealing device according to claim 7, characterized in that: The protruding portion comprises a first oblique protrusion, a second oblique protrusion and a straight protrusion, wherein the first oblique protrusion and the second oblique protrusion are distributed on two opposite sides of the straight protrusion in a mirror-image manner.

9. The ultrasonic sealing device according to claim 1, characterized in that: The upper clamping plate and the lower clamping plate are both provided with a plurality of adsorption holes, and the plurality of adsorption holes are suitable for adsorbing the two outer side surfaces of the bag opening of the packaging bag one by one when the upper clamping plate and the lower clamping plate are close to the packaging bag.

10. The ultrasonic sealing device according to claim 1 or 9, characterized in that: The upper clamping plate protrudes from the rolling surface of the roller, and the upper clamping plate can be elastically telescopically arranged.

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