An ultrasonic sealing mechanism for packaging machines

Abstract

This utility model discloses an ultrasonic sealing mechanism for a packaging machine, including a packaging machine body, upper and lower sealing plates, an ultrasonic welder, a clamping block, a drive mechanism, and a control system. The upper and lower sealing plates are installed at the sealing assembly of the packaging machine body. The ultrasonic welder is fixedly installed on the upper and lower sealing plates by the clamping block and moves up and down with the sealing plates. The drive mechanism is connected to the sealing plates and is used to drive the upper and lower sealing plates to close or separate. The control system is electrically connected to the ultrasonic welder and the packaging machine body and is used to control the working parameters of the ultrasonic welder and the operation of the packaging machine, so as to solve the problems of frequent replacement of high-temperature tape and easy electric shock in the existing heating wire sealing method.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, specifically to an ultrasonic sealing mechanism for a packaging machine. Background Technology

[0002] Sealing is a crucial step in the packaging machine production process. Currently, most packaging machines use heating wires to heat the bag, melting it to seal it. However, this heating method has significant drawbacks: firstly, it requires frequent replacement of high-temperature adhesive tape, increasing maintenance costs and impacting production efficiency; secondly, the exposed heating wires pose a significant safety hazard, as they are easily accessible to operators and could lead to electric shock.

[0003] To address the aforementioned problems, this utility model proposes a packaging machine sealing mechanism employing ultrasonic welding to overcome the shortcomings of existing technologies. Utility Model Content

[0004] The purpose of this invention is to provide an ultrasonic sealing mechanism for packaging machines to solve the problems of frequent replacement of high-temperature adhesive tape and the risk of electric shock associated with existing heating wire sealing methods.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An ultrasonic sealing mechanism for a packaging machine includes a packaging machine body, upper and lower sealing plates, an ultrasonic welder, clamping blocks, a drive mechanism, and a control system. The upper and lower sealing plates are installed at the sealing assembly of the packaging machine body. The ultrasonic welder is fixedly installed on the upper and lower sealing plates respectively through the clamping blocks and moves up and down with the sealing plates. The drive mechanism is connected to the sealing plates and is used to drive the upper and lower sealing plates to close or separate.

[0006] Furthermore, there are two ultrasonic welding machines, which are respectively installed on the upper sealing plate and the lower sealing plate, and the welding surfaces of the two ultrasonic welding machines are arranged opposite each other.

[0007] Furthermore, the driving mechanism includes a motor and a hexagonal bar. The motor is connected to the sealing plate via the hexagonal bar to drive the upper and lower sealing plates to close or separate via the hexagonal bar.

[0008] Furthermore, the control system includes a touch screen for the packaging machine, which is electrically connected to the control system of the ultrasonic welding machine for real-time display and adjustment of the working parameters of the ultrasonic welding machine.

[0009] Furthermore, it also includes an upper cutting blade assembly and a lower cutting blade assembly. The upper cutting blade assembly is mounted on the upper sealing plate, and the lower cutting blade assembly is mounted on the lower sealing plate. The upper cutting blade assembly and the lower cutting blade assembly are positioned correspondingly and are used to cut the bag after sealing.

[0010] Furthermore, it also includes a waste suction component, which is installed on the packaging machine body and located on one side of the sealing plate, for adsorbing and cleaning the waste generated during the sealing process.

[0011] Furthermore, the ultrasonic welding machine is capable of generating 20kHz ultrasonic waves.

[0012] This utility model has the following beneficial effects: This invention utilizes an ultrasonic welding machine for sealing. The welding machine's wiring is concealed inside, eliminating exposed wires and completely removing the risk of electric shock from exposed heating wires, thus ensuring operator safety. Compared to traditional heating wire sealing methods, this mechanism eliminates the need for frequent replacement of high-temperature tape and heating wires, reducing maintenance procedures and component replacement costs, minimizing downtime, and improving continuous equipment operation. Attached Figure Description

[0013] Figure 1 , Figure 2 This is a perspective view of an ultrasonic sealing mechanism for a packaging machine according to the present invention from different directions. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Reference Figure 1 and Figure 2 As shown, one embodiment of this utility model is provided: an ultrasonic sealing mechanism for a packaging machine, comprising an upper sealing plate 1 and a lower sealing plate 2, which are installed at the sealing assembly of the packaging machine body and serve as a load-bearing structure for ultrasonic welding and sealing operations.

[0016] The ultrasonic welding machine 3 is fixedly mounted on the upper sealing plate 1 and the lower sealing plate 2 respectively by clamping blocks 4, with the welding surfaces of the two ultrasonic welding machines facing each other. The function of the clamping blocks 4 is to firmly fix the ultrasonic welding machine to the sealing plate, ensuring that the ultrasonic welding machine will not shift or loosen during the movement of the sealing plate, thus guaranteeing the positional accuracy during welding. The ultrasonic welding machine can generate 20KHz ultrasonic waves. This frequency of ultrasonic waves can cause the material at the sealing point of the bag to vibrate rapidly and generate heat, achieving rapid welding and sealing.

[0017] Drive mechanism: Includes motor 5 and hexagonal bar 6. Motor 5 is connected to the upper sealing plate 1 and lower sealing plate 2 via hexagonal bar 6. The motor provides power, which is transmitted to the sealing plates via hexagonal bar 6, driving the upper and lower sealing plates to perform relative closing or opening movements. The hexagonal bar has good rigidity and transmission stability, ensuring the synchronicity and accuracy of the movement of the upper and lower sealing plates, and allowing the pressure during sealing to be evenly applied to the bag. (Refer to...) Figure 2 As shown, the motor 5 and the hexagonal bar 6 transmit power through the sealing drive shaft 10. When the motor drives the hexagonal bar to rotate in the forward direction, the rotational motion of the hexagonal bar is converted into a relative approaching motion of the upper sealing plate downward and the lower sealing plate upward, realizing the closure of the two (completing sealing, cutting, and other actions); when the motor drives the hexagonal bar to rotate in the reverse direction, the connecting piece drives the upper sealing plate upward and the lower sealing plate downward to move away from each other, realizing the separation of the two (facilitating the entry of the bag to be sealed or the delivery of the processed product).

[0018] Further optimization includes a control system: the control system comprises a touchscreen on the packaging machine, which is electrically connected to the control system of the ultrasonic welding machine. Operators can set and adjust the working parameters of the ultrasonic welding machine in real time via the touchscreen, such as welding time and power. Parameter settings are convenient and intuitive, and can quickly adapt to the sealing requirements of different types of bags. Simultaneously, the control system coordinates with the overall operation of the packaging machine, ensuring that the sealing operation is synchronized with other processes of the packaging machine (such as feeding and pushing).

[0019] Upper cutter assembly 7 and lower cutter assembly 8: The upper cutter assembly is installed on the upper sealing plate, and the lower cutter assembly is installed on the lower sealing plate, with their positions corresponding to each other. After sealing, the upper and lower cutter assemblies close with the movement of the sealing plate, cutting the bag to separate the product from the excess material. The cutting is precise, ensuring the product has a neat shape.

[0020] Waste suction component 9: Installed on the main body of the packaging machine, located on one side of the sealing plate, and works in conjunction with the sealing drive shaft. Its function is to promptly absorb and collect the waste generated after cutting, preventing waste from accumulating in the working area and affecting equipment operation or contaminating products, thus maintaining a clean working environment.

[0021] Excellent sealing quality: The ultrasonic welding machine generates 20KHz ultrasonic waves during operation, which can quickly create a uniform sealing line at the bag's sealing point, resulting in a flat and firm seal. This avoids problems such as weak sealing and deformation caused by localized overheating or insufficient heating that may occur with heating wires.

[0022] With its compact structure and excellent coordination, the ultrasonic welding machine is securely mounted on the upper and lower sealing plates via clamping blocks, moving together with the sealing plates to ensure accurate alignment during welding. The drive mechanism, through a motor and hexagonal bar, drives the sealing plates to close smoothly, ensuring uniform sealing pressure and further improving sealing quality. Furthermore, the inclusion of upper and lower cutting blade assemblies and a waste suction assembly integrates sealing, cutting, and waste removal, enhancing production continuity and automation. The working process of this device is as follows: When sealing is required, the bag to be sealed is conveyed between the upper and lower sealing plates. The control system issues a command, the motor starts, and drives the upper and lower sealing plates to close via a hexagonal bar. Simultaneously, the ultrasonic welding machine starts, generating 20kHz ultrasonic waves. During the closing process of the upper and lower sealing plates, the sealing area of ​​the bag is subjected to the ultrasonic waves, causing the material to vibrate rapidly, heat up, and fuse, forming a strong sealing line, thus completing the sealing.

[0023] After sealing, the upper and lower cutting blade assemblies close with the sealing plate, cutting off the excess portion of the bag. Then, the waste suction assembly works to absorb and clean up the waste generated during cutting. Next, the drive mechanism separates the upper and lower sealing plates, and the pusher pushes out the sealed and cut product, completing one production cycle.

[0024] Throughout the process, operators can monitor and adjust the working parameters of the ultrasonic welding machine in real time via the packaging machine's touchscreen to ensure stable and reliable sealing quality.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 packaging machine ultrasonic sealing mechanism, characterized by, The packaging machine includes a main body, upper and lower sealing plates, an ultrasonic welder, clamping blocks, and a drive mechanism. The upper and lower sealing plates are installed at the sealing assembly of the main body of the packaging machine. The ultrasonic welder is fixedly installed on the upper and lower sealing plates respectively through the clamping blocks and moves up and down with the sealing plates. The drive mechanism is connected to the sealing plates and is used to drive the upper and lower sealing plates to close or separate.

2. The packaging machine ultrasonic sealing mechanism according to claim 1, characterized in that, The ultrasonic welding machine is of two types, which are respectively installed on the upper sealing plate and the lower sealing plate, and the welding surfaces of the two ultrasonic welding machines are arranged opposite each other.

3. The packaging machine ultrasonic sealing mechanism of claim 1, wherein, The driving mechanism includes a motor and a hexagonal bar. The motor is connected to the sealing plate via the hexagonal bar to drive the upper and lower sealing plates to close or separate via the hexagonal bar.

4. The packaging machine ultrasonic sealing mechanism of claim 1, wherein, It also includes an upper cutter assembly and a lower cutter assembly. The upper cutter assembly is mounted on the upper sealing plate, and the lower cutter assembly is mounted on the lower sealing plate. The upper cutter assembly and the lower cutter assembly are positioned correspondingly and are used to cut the bag after sealing.

5. The packaging machine ultrasonic sealing mechanism of claim 1, wherein, It also includes a waste suction component, which is installed on the main body of the packaging machine and located on one side of the sealing plate, for adsorbing and cleaning the waste generated during the sealing process.

6. The packaging machine ultrasonic sealing mechanism of claim 1, wherein, The ultrasonic welding machine is capable of generating 20kHz ultrasonic waves.

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