Multi-station rotary ultrasonic plastic welding apparatus

Abstract

The utility model discloses a kind of multi-station rotary ultrasonic plastic welding equipment, which comprises: rack, the rotating platform of the multi-station of being arranged in circumference, first feeding mechanism, second feeding mechanism, visual inspection mechanism, compression mechanism, welding mechanism and discharging mechanism, rotating platform is installed in rack top center;First feeding mechanism, second feeding mechanism, visual inspection mechanism, compression mechanism, welding mechanism and discharging mechanism are sequentially arranged and installed in rack along the circumference of rotating platform.Minimize linear distance of each station based on annular layout, with rotating platform center symmetry layout, circumferentially continuous arrangement makes workpiece complete station switching in index rotation, so as to effectively shorten material circulation path, eliminate idle stroke waste and effectively optimize the purpose of equipment footprint.

Description

Technical Field

[0001] This utility model relates to the field of plastic welding equipment technology, and in particular to a multi-station rotary ultrasonic plastic welding equipment. Background Technology

[0002] An ultrasonic plastic welding machine is a welding device developed and designed for the plastic welding field, commonly referred to in the industry as an ultrasonic plastic welding machine. Ultrasonic welding equipment is a high-tech technology for welding thermoplastic products. Various thermoplastic parts can be welded using ultrasonic welding. When welding plastic products, no adhesives, fillers, or solvents are needed, and it does not consume a large amount of heat. It has advantages such as simple operation, fast welding speed, high welding strength, and high production efficiency. Therefore, ultrasonic welding technology is increasingly widely used. When ultrasound acts on the contact surface of thermoplastic plastics, it generates high-frequency vibrations of tens of thousands of times per second. This high-frequency vibration, reaching a certain amplitude, transmits ultrasonic energy to the welding area through the upper welding part. Due to the high acoustic impedance at the welding area, i.e., the interface between the two welded parts, localized high temperatures are generated. Furthermore, because plastic has poor thermal conductivity, the heat cannot dissipate quickly and accumulates in the welding area, causing the contact surfaces of the two plastics to melt rapidly. Under certain pressure, they fuse together into one piece. After the ultrasonic waves stop, the pressure is maintained for a few seconds to allow solidification, forming a strong molecular chain and achieving the welding purpose. The weld strength can approach the strength of the original material. The quality of ultrasonic plastic welding depends on three factors: the amplitude of the transducer welding head, the applied pressure, and the welding time. The welding time and welding head pressure are adjustable, while the amplitude is determined by the transducer and amplitude transformer. These three quantities interact to reach an optimal value. When the energy exceeds this optimal value, the amount of plastic melting is large, and the welded object is easily deformed; if the energy is too low, it is difficult to weld firmly, and the applied pressure cannot be too high. This optimal pressure is the product of the side length of the welded part and the optimal pressure per 1mm of the edge.

[0003] However, existing ultrasonic plastic welding machines are generally single-unit, single-station welding equipment. They suffer from technical problems such as insufficient efficiency, insufficient welding accuracy, and large losses during batch welding of multiple workpieces. Optimization is needed to address the efficiency, accuracy, and consistency of batch welding production. Utility Model Content

[0004] Therefore, it is necessary to provide a multi-station rotary ultrasonic plastic welding equipment to address the technical problems of insufficient welding efficiency and precision of existing ultrasonic plastic welding machines.

[0005] A multi-station rotary ultrasonic plastic welding equipment includes a frame, a rotating platform with multiple stations arranged circumferentially, a first feeding mechanism, a second feeding mechanism, a vision inspection mechanism, a clamping mechanism, a welding mechanism, and a unloading mechanism. The rotating platform is installed at the top center of the frame. The first feeding mechanism, the second feeding mechanism, the vision inspection mechanism, the clamping mechanism, the welding mechanism, and the unloading mechanism are arranged sequentially along the circumference of the rotating platform and installed on the frame, thereby forming a multi-station rotary welding mechanism for continuous multi-station conveying and welding of two plastic parts to be welded.

[0006] In one embodiment, the welding mechanism described above employs an ultrasonic plastic welding unit.

[0007] In one embodiment, the first feeding mechanism includes a first conveyor line and a first clamping unit, both of which are mounted on the top side surface of the frame; wherein, the output end of the first conveyor line extends toward the rotating platform; the first clamping unit is disposed between the output end of the first conveyor line and the rotating platform, and the clamping end of the first clamping unit corresponds to and cooperates with the output end of the first conveyor line and the workstation at the edge of the rotating platform, respectively.

[0008] In one embodiment, the second feeding mechanism includes a vibratory feeder and a second clamping unit, both of which are mounted on the top surface of the frame; wherein the output end of the vibratory feeder extends toward the rotating platform; the second clamping unit is disposed between the output end of the vibratory feeder and the rotating platform, and the clamping end of the second clamping unit corresponds to and cooperates with the output end of the vibratory feeder and the workstation at the edge of the rotating platform, respectively.

[0009] In one embodiment, the aforementioned visual inspection mechanism includes a first mounting bracket, a first lifting unit, and a camera module. The first mounting bracket is disposed on the top side surface of the frame; the first lifting unit is mounted on the top of the first mounting bracket; the camera module is mounted on the output end of the first lifting unit, and the camera module is positioned facing the workstation at the edge of the rotating platform.

[0010] In one embodiment, the clamping mechanism includes a second mounting bracket and a clamping unit. The second mounting bracket is disposed on the top side surface of the frame; the clamping unit is mounted on the top of the second mounting bracket, and the output end of the clamping unit is disposed facing the workstation at the edge of the rotating platform.

[0011] In one embodiment, the aforementioned clamping unit employs a thin-type cylinder.

[0012] In one embodiment, the welding mechanism includes a third mounting bracket, a second lifting unit, and an ultrasonic welding head. The third mounting bracket is disposed on the top side surface of the frame; the second lifting unit is mounted on the top of the third mounting bracket; the ultrasonic welding head is mounted on the output end of the second lifting unit, and the ultrasonic welding head is positioned facing the workstation at the edge of the rotating platform.

[0013] In one embodiment, the feeding mechanism includes a third clamping unit, a second conveyor line, and a plurality of material support plates. The third clamping unit and the second conveyor line are disposed on the top side surface of the frame; the second conveyor line is disposed on the adjacent side of the rotating platform; the plurality of material support plates are disposed in cooperation on the conveying plane of the second conveyor line; and the third clamping unit is disposed between the second conveyor line and the rotating platform.

[0014] In one embodiment, the above-mentioned unloading mechanism further includes a pallet clamping unit and a third conveyor line, the third conveyor line being disposed adjacent to the second conveyor line; the pallet clamping unit is disposed across the top side of the second conveyor line and the third conveyor line.

[0015] The aforementioned multi-station rotary ultrasonic plastic welding equipment is based on a ring layout, with the rotating platform symmetrically arranged at its center. This minimizes the straight-line distance between stations, and the continuous circumferential arrangement allows workpieces to switch stations during indexing rotation. This effectively shortens the material flow path, eliminates wasted idle strokes, and optimizes the equipment's footprint. The dual-station feeding structure effectively prevents mechanical interference. By placing the first and second feeding mechanisms on different sides of the rotating platform, different plastic parts (such as the substrate and the cover) are loaded synchronously, significantly reducing the feeding cycle time and further improving processing efficiency. Furthermore, the linked structure of vision, clamping, and welding allows for the early identification of defective parts with clearances exceeding limits, directly eliminating defective products. Simultaneously, the linkage between the ultrasonic plastic welding unit and the clamping mechanism prevents parts from shifting during welding, improving welding quality and reducing wasted welding head wear. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a multi-station rotary ultrasonic plastic welding equipment in one embodiment. Detailed Implementation

[0017] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] Please see Figure 1This utility model discloses a multi-station rotary ultrasonic plastic welding equipment 1. The multi-station rotary ultrasonic plastic welding equipment 1 includes a frame 10, a rotating platform 20 with multiple stations arranged circumferentially, a first feeding mechanism 30, a second feeding mechanism 40, a vision inspection mechanism 50, a clamping mechanism 60, a welding mechanism 70, and a unloading mechanism 80. The rotating platform 20 is installed at the top center of the frame 10. The first feeding mechanism 30, the second feeding mechanism 40, the vision inspection mechanism 50, the clamping mechanism 60, the welding mechanism 70, and the unloading mechanism 80 are arranged sequentially along the circumference of the rotating platform 20 and installed on the frame 10, thereby forming a multi-station rotary welding mechanism 70 for continuous multi-station conveying and welding of two plastic parts to be welded. Based on this, the specific welding process for the plastic parts is as follows: the first plastic part to be welded is fed onto one of the corresponding stations on the rotating platform 20 via the first feeding platform. The first plastic part rotates with the station to the output end of the second feeding mechanism 40. At this time, the second feeding mechanism 40 feeds the corresponding second plastic part to the corresponding station, causing the second plastic part to mate with the first plastic part to form a mating body. Subsequently, the mating body continues to rotate on the rotating platform, and sequentially passes through the visual inspection mechanism 50 for mating degree and posture visual inspection, is pressed by the clamping mechanism 60, welded by the welding mechanism 70, and finally unloaded by the unloading mechanism 80. Specifically, the welding mechanism 70 adopts an ultrasonic plastic welding unit. Based on the above configuration, the multi-station rotary ultrasonic plastic welding equipment 1 of this utility model is based on a ring layout, with the rotating platform 20 centrally symmetrically arranged. The straight-line distance between each station is minimized, and the continuous circumferential arrangement allows the workpiece to complete the station switching during indexing rotation. This effectively shortens the material flow path, eliminates idle travel waste, and effectively optimizes the equipment's floor space. The dual-station feeding structure effectively prevents mechanical interference. That is, by placing the first feeding mechanism 30 and the second feeding mechanism 40 on different sides of the rotating platform 20, different plastic parts (such as the base and the cover) can be loaded synchronously, greatly reducing the feeding cycle and further improving processing efficiency. In addition, the linkage structure of vision, clamping, and welding can identify defective parts with mating gaps exceeding the limit in advance and directly reject defective products. At the same time, the linkage between the ultrasonic plastic welding unit and the clamping mechanism 60 can prevent the parts from shifting during the welding process, improving welding quality and reducing the waste of the welding head during empty welding.

[0024] Furthermore, in one embodiment, the first feeding mechanism 30 includes a first conveyor line 31 and a first clamping unit 32, both of which are mounted on the top surface of the frame 10. The output end of the first conveyor line 31 extends towards the rotating platform 20. The first clamping unit 32 is positioned between the output end of the first conveyor line 31 and the rotating platform 20, and its clamping ends correspond to the output end of the first conveyor line 31 and a workstation at the edge of the rotating platform 20. Based on this, the second plastic component is conveyed to the first clamping unit 32 via the first conveyor line 31, and the first clamping unit 32 clamps and feeds the first plastic component, which is in a preset posture, to the corresponding workstation at the edge of the rotating platform 20.

[0025] Furthermore, in one embodiment, the second feeding mechanism 40 includes a vibratory feeder 41 and a second clamping unit 42, both mounted on the top surface of the frame 10. The output end of the vibratory feeder 41 extends towards the rotating platform 20. The second clamping unit 42 is positioned between the output end of the vibratory feeder 41 and the rotating platform 20, with its clamping ends corresponding to the output end of the vibratory feeder 41 and the workstations at the edge of the rotating platform 20. Based on this, the first plastic component is conveyed to the second clamping unit 42 via the vibratory feeder 41, and the second clamping unit 42 clamps and feeds the second plastic component, which is in a preset posture, to the workstation where the first plastic component is fixed.

[0026] Furthermore, the visual inspection mechanism 50 includes a first mounting bracket 51, a first lifting unit 52, and a camera module 53. The first mounting bracket 51 is disposed on the top side surface of the frame 10; the first lifting unit 52 is mounted on the top of the first mounting bracket 51; the camera module 53 is mounted on the output end of the first lifting unit 52, and the camera module 53 is positioned facing the edge of the rotating platform 20. Based on this, the first lifting unit 52 can drive the camera module 53 to lift relative to the rotating platform 20, thereby adjusting the relative distance between the camera module 53 and the mating body, which is beneficial for the camera module 53 to perform visual inspection of the mating body.

[0027] Furthermore, the clamping mechanism 60 includes a second mounting bracket 61 and a clamping unit 62. The second mounting bracket 61 is disposed on the top surface of the frame 10; the clamping unit 62 is mounted on the top of the second mounting bracket 61, and the output end of the clamping unit 62 is positioned towards the workstation at the edge of the rotating platform 20. Based on this, the clamping unit 62 performs a clamping action on the mating body. Specifically, in one embodiment, the clamping unit 62 is a thin-type cylinder.

[0028] Furthermore, the welding mechanism 70 includes a third mounting bracket 71, a second lifting unit 72, and an ultrasonic welding head 73. The third mounting bracket 71 is disposed on the top side surface of the frame 10; the second lifting unit 72 is mounted on the top of the third mounting bracket 71; the ultrasonic welding head 73 is mounted on the output end of the second lifting unit 72, and the ultrasonic welding head 73 is positioned towards the edge of the rotating platform 20. Based on this, the second lifting unit 72 can drive the ultrasonic welding head 73 to move up and down relative to the rotating platform 20.

[0029] Furthermore, the unloading mechanism 80 includes a third clamping unit 81, a second conveyor line 82, and several support plates 83. The third clamping unit 81 and the second conveyor line 82 are disposed on the top side surface of the frame 10; the second conveyor line 82 is disposed on the adjacent side of the rotating platform 20; the several support plates 83 are disposed in cooperation with the conveying plane of the second conveyor line 82; the third clamping unit 81 is disposed between the second conveyor line 82 and the rotating platform 20, so that the third clamping unit 81 can clamp the welded mating body and then place it onto the surface of the corresponding support plate 83, thereby realizing the unloading of the mating body.

[0030] Furthermore, in one embodiment, the unloading mechanism 80 also includes a pallet clamping unit 84 and a third conveyor line 85, the third conveyor line 85 being disposed adjacent to the second conveyor line 85; the pallet clamping unit 84 is spanning the top side of the second conveyor line 85 and the third conveyor line 85, thereby enabling the pallet clamping unit 84 to clamp the pallet 83 that has completed receiving material on the second conveyor line 85 and send it to the third conveyor line 85 for further unloading, thereby enhancing the scalability of the unloading mechanism 80 and improving unloading efficiency.

[0031] In summary, the multi-station rotary ultrasonic plastic welding equipment disclosed in this utility model is based on a ring layout with a centrally symmetrical arrangement of the rotating platform. The straight-line distance between each station is minimized, and the continuous circumferential arrangement allows the workpiece to complete station switching during indexing rotation. This effectively shortens the material flow path, eliminates wasted idle strokes, and optimizes the equipment's footprint. The dual-station feeding structure effectively prevents mechanical interference. Specifically, by placing the first and second feeding mechanisms on different sides of the rotating platform, different plastic parts (such as the substrate and the cover) are loaded synchronously, greatly reducing the feeding cycle time and further improving processing efficiency. In addition, the linkage structure of vision, clamping, and welding can identify defective parts with mating clearances exceeding the limit in advance, directly rejecting defective products. At the same time, the linkage between the ultrasonic plastic welding unit and the clamping mechanism can prevent displacement of parts during welding, improving welding quality and reducing wasted welding head wear.

[0032] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A multi-station rotary ultrasonic plastic welding equipment, characterized in that, include: The frame is circumferentially equipped with a multi-station rotary platform, a first feeding mechanism, a second feeding mechanism, a vision inspection mechanism, a clamping mechanism, a welding mechanism, and a unloading mechanism. The rotary platform is installed at the top center of the frame. The first feeding mechanism, the second feeding mechanism, the vision inspection mechanism, the clamping mechanism, the welding mechanism, and the unloading mechanism are arranged sequentially along the circumference of the rotary platform and installed on the frame, thereby forming a multi-station rotary welding mechanism for continuous multi-station conveying and welding of two plastic parts to be welded.

2. The multi-station rotary ultrasonic plastic welding equipment according to claim 1, characterized in that, The welding mechanism uses an ultrasonic plastic welding unit.

3. The multi-station rotary ultrasonic plastic welding equipment according to claim 2, characterized in that, The first feeding mechanism includes a first conveyor line and a first clamping unit, both of which are mounted on the top side surface of the frame. The output end of the first conveyor line extends toward the rotating platform. The first clamping unit is located between the output end of the first conveyor line and the rotating platform, and the clamping ends of the first clamping unit correspond to and cooperate with the output end of the first conveyor line and the workstation at the edge of the rotating platform, respectively.

4. The multi-station rotary ultrasonic plastic welding equipment according to claim 3, characterized in that, The second feeding mechanism includes a vibratory feeder and a second clamping unit, both of which are mounted on the top side surface of the frame. The output end of the vibratory feeder extends toward the rotating platform. The second clamping unit is located between the output end of the vibratory feeder and the rotating platform, and the clamping end of the second clamping unit corresponds to the output end of the vibratory feeder and the workstation at the edge of the rotating platform, respectively.

5. The multi-station rotary ultrasonic plastic welding equipment according to claim 4, characterized in that, The visual inspection mechanism includes a first mounting bracket, a first lifting unit, and a camera module. The first mounting bracket is disposed on the top side surface of the frame; the first lifting unit is mounted on the top of the first mounting bracket. The camera module is installed at the output end of the first lifting unit, and the camera module is positioned facing the edge of the rotating platform.

6. The multi-station rotary ultrasonic plastic welding equipment according to claim 5, characterized in that, The clamping mechanism includes a second mounting bracket and a clamping unit. The second mounting bracket is disposed on the top side surface of the frame. The clamping unit is mounted on the top of the second mounting bracket, and the output end of the clamping unit is positioned facing the workstation at the edge of the rotating platform.

7. The multi-station rotary ultrasonic plastic welding equipment according to claim 6, characterized in that, The clamping unit uses a thin-type cylinder.

8. The multi-station rotary ultrasonic plastic welding equipment according to claim 7, characterized in that, The welding mechanism includes a third mounting bracket, a second lifting unit, and an ultrasonic welding head. The third mounting bracket is disposed on the top side surface of the frame; the second lifting unit is mounted on the top of the third mounting bracket; the ultrasonic welding head is mounted on the output end of the second lifting unit, and the ultrasonic welding head is positioned facing the workstation at the edge of the rotating platform.

9. The multi-station rotary ultrasonic plastic welding equipment according to claim 8, characterized in that, The feeding mechanism includes a third clamping unit, a second conveyor line, and several material support plates. The third clamping unit and the second conveyor line are located on the top side surface of the frame; the second conveyor line is located on the adjacent side of the rotating platform; the several material support plates are arranged in cooperation on the conveying plane of the second conveyor line; and the third clamping unit is located between the second conveyor line and the rotating platform.

10. The multi-station rotary ultrasonic plastic welding equipment according to claim 9, characterized in that, The unloading mechanism also includes a pallet clamping unit and a third conveyor line, which is located adjacent to the second conveyor line; the pallet clamping unit is located across the top of the second and third conveyor lines.

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