Welding device

Abstract

The invention relates to the field of disposable hygienic product production equipment, in particular to a welding device which mainly solves the problem that in the prior art, a welding device suitable for adult pull-ups is poor in sewing effect. Comprising a rack, a control system, a first welding mechanism, a second welding mechanism, a first clamping and conveying mechanism, a second clamping and conveying mechanism and a bearing and conveying mechanism, the first clamping and conveying mechanism is arranged on the rack, the first welding mechanism is arranged at the output end of the first clamping and conveying mechanism, and the second welding mechanism is arranged at the output end of the first welding mechanism; the first clamping and conveying mechanism is arranged at the output end of the first welding mechanism, the second clamping and conveying mechanism is arranged at the output end of the second welding mechanism, and the bearing and conveying mechanism is arranged between the first clamping and conveying mechanism and the second clamping and conveying mechanism, distributed on the transverse side of the first welding mechanism and the transverse side of the second welding mechanism and used for bearing part of stacked strip-shaped materials in the transverse direction.

Description

Technical Field

[0001] This invention relates to the field of equipment for producing disposable hygiene products, and more particularly to a welding device. Background Technology

[0002] In the production of pull-up diapers, menstrual pants, and other disposable trouser-style sanitary products, the sides of the waistband area need to be welded and sealed to form a trouser-like structure for easy wear. The traditional method for welding waistbands is heat sealing welding, which involves heating two pieces of material to melt and bond them together. However, the welded waistband material is relatively hard, has lower comfort, and the heat sealing effect is inconsistent.

[0003] To address the aforementioned issues, existing methods utilize ultrasonic welding devices for heat sealing of waistbands. For example, Chinese Patent Application No. 201810653413.8 discloses a novel ultrasonic welding device for baby pull-up diapers, comprising a mounting base plate, an ultrasonic welding assembly, a welding support roller, a conveyor belt, and a controller. A support plate is fixedly mounted on the surface of the mounting base plate, and the ultrasonic welding assembly is fixedly connected to the lower surface of the support plate. A servo motor is connected to the welding support roller via a coupling. Transmission rollers are also mounted on the surfaces of the mounting base plate on both sides of the welding support roller. These transmission rollers are connected to the power output end of the servo motor via a chain drive mechanism. The conveyor belt is laid on the surfaces of the welding support roller and the transmission roller. The ultrasonic welding assembly includes a telescopic cylinder, an ultrasonic generator, and an ultrasonic welding head connected to the ultrasonic generator. The ultrasonic welding assembly drives the welding support roller connected to the lower end of the telescopic cylinder, and the controller controls the telescopic cylinder and the servo motor behind the welding support roller. Compared to traditional thermal welding methods, ultrasonic welding occupies less space and is simpler in process.

[0004] When the above equipment is running, the controller activates the servo motor, which drives the conveyor belt to move the baby pull-up diaper on its upper surface. When the point to be welded is directly below the ultrasonic welding head, the controller activates the telescopic cylinder, causing the ultrasonic welding head to contact the weld point surface on the baby pull-up diaper. Then, the controller activates the ultrasonic generator, and the ultrasonic welding head welds the support roller, completing the ultrasonic welding of the pull-up diaper. However, in actual use, it has been found that because adult pull-up diapers have relatively large waist sizes and the production speed is fast, using the ultrasonic welding device of the above specifications for sewing can easily result in weak seams, poor welding quality, and affect the quality of the finished product. Summary of the Invention

[0005] Therefore, in view of the above problems, the present invention provides a welding device, which mainly solves the problem of poor sewing effect of welding devices applicable to adult pull-up pants in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A welding apparatus includes a frame, a control system, a first welding mechanism, a second welding mechanism, a first clamping and conveying mechanism, a second clamping and conveying mechanism, and a supporting and conveying mechanism. The first clamping and conveying mechanism is mounted on the frame and is used to maintain the conveying of a stacked strip material. It is defined as extending longitudinally along the conveying direction, and includes transverse directions perpendicular to the longitudinal direction and located on the same horizontal plane. The first welding mechanism is located at the output end of the first clamping and conveying mechanism and is used to intermittently weld first welding areas evenly spaced on the stacked strip material. The second welding mechanism is located at the output end of the first welding mechanism and is used to... Intermittent welding is performed on the second welding areas that are equally spaced on the laminated strip material. The first welding area and the second welding area are distributed or overlap in the transverse direction. The second clamping and conveying mechanism is located at the output end of the second welding mechanism. The supporting and conveying mechanism is located between the first clamping and conveying mechanism and the second clamping and conveying mechanism, and is distributed on one side of the transverse direction of the first welding mechanism and the second welding mechanism. It is used to support part of the laminated strip material in the transverse direction. The first welding mechanism, the second welding mechanism, the first clamping and conveying mechanism, the second clamping and conveying mechanism and the supporting and conveying mechanism are electrically connected to the control system.

[0007] Furthermore, both the first welding mechanism and the second welding mechanism have a conveying channel for the stacked strip material to pass through. A support platform is provided between the first clamping conveying mechanism and the second clamping conveying mechanism, and the support platform passes through the conveying channel. A through groove is provided on the support platform at the location of the first welding mechanism and the second welding mechanism.

[0008] Furthermore, both the first welding mechanism and the second welding mechanism include a bracket, a lifting cylinder, a first drive motor, a guide assembly, an installation assembly, an ultrasonic generator, a welding head, and an anvil roller. The bracket is mounted on the frame, the guide assembly is mounted on the bracket, the installation assembly is mounted on the guide assembly, the lifting cylinder is mounted on the bracket and connected to the installation assembly, and is used to drive the installation assembly to move up and down along the guide assembly. The ultrasonic generator and the welding head are mounted on the installation assembly, and the welding head is connected to the ultrasonic generator. The anvil roller is rotatably mounted on the frame and distributed on the lower side of the welding head. The circumferential surface of the anvil roller has a protrusion that cooperates with the welding head. The first drive motor is connected to the anvil roller.

[0009] Furthermore, the mounting assembly includes a movable seat and a mounting base. The guiding assembly includes a second drive motor, a ball screw, two first guide rails, a first slider, at least two second guide rails, a second slider, an even number of side plates, and a wedge block. The two first guide rails are respectively disposed on the transverse two sides of the bracket, and the first guide rails are distributed along the vertical direction. The side plates are disposed on the first guide rails via the first sliders. The second guide rails are disposed on the front side of the bracket. The movable seat is disposed on the second guide rails via the second sliders. The side plates are threadedly connected to the transverse two sides of the movable seat via locking bolts. The lifting cylinder is connected to the movable seat. The mounting base is connected to the movable seat via the wedge block. The welding head is disposed on the mounting base. A pressure sensor is disposed between the welding head and the mounting base. The ball screw is threadedly connected to the wedge block. The second drive motor is connected to the ball screw. The pressure sensor and the second drive motor are electrically connected to the control system.

[0010] Furthermore, a flexible gasket is provided between the mounting base and the movable base.

[0011] Furthermore, the side plate has an L-shaped structure, and the side plate includes a first plate and a second plate. The first slider is locked to the first plate, and the second plate is locked to the front side of the movable seat.

[0012] Furthermore, the first slider is provided with a filling port for easy application of grease or lubricating oil.

[0013] Furthermore, both the first clamping and conveying mechanism and the second clamping and conveying mechanism include an upper conveyor belt and a lower conveyor belt. The rotation of the upper conveyor belt and the lower conveyor belt is driven by power, and the surface linear velocity of the upper conveyor belt and the lower conveyor belt is the same.

[0014] Furthermore, the lower conveyor belt can move vertically relative to the upper conveyor belt, and during operation, both the upper and lower conveyor belts apply pressure to the laminated strip material, and the magnitude of this pressure is adjustable.

[0015] Furthermore, the longitudinal length of the upper conveyor belt is greater than that of the lower conveyor belt.

[0016] By adopting the aforementioned technical solution, the beneficial effects of this invention are as follows: This welding device, through the first clamping and conveying mechanism and the second clamping and conveying mechanism, maintains the conveyed laminated strip material, ensuring that the laminated strip material maintains a good posture during conveying, facilitating subsequent welding and stitching. Furthermore, the first welding mechanism and the second welding mechanism are respectively used to intermittently weld and stitch the first welding area and the second welding area, which are equally spaced on the laminated strip material, and the first welding area and the second welding area are distributed in the transverse direction. Compared with existing welding devices suitable for adult pull-up trousers, this device is better suited for adult pull-up trousers, menstrual trousers, and other trouser-type disposable... The large waist size and fast production speed of the sexual hygiene products effectively improve the stitch strength and welding quality, solving the problem of poor stitching effect in the welding devices used in existing technologies for adult pull-up pants. At the same time, the supporting and conveying mechanism is set between the first clamping and conveying mechanism and the second clamping and conveying mechanism, and is distributed on the lateral side of the first welding mechanism and the second welding mechanism. It is used to support the part of the stacked strip material that is far away from the first welding area and the second welding area in the lateral direction. It works with the first clamping and conveying mechanism and the second clamping and conveying mechanism to ensure the conveying posture of the stacked strip material, so that the welding and sewing accuracy is high, further improving the welding quality. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention; Figure 2 This is a front view structural diagram of an embodiment of the present invention; Figure 3 This is a top view of the structure according to an embodiment of the present invention; Figure 4 This is a three-dimensional structural schematic diagram of the first welding mechanism in an embodiment of the present invention; Figure 5 This is a right-side structural schematic diagram of the first welding mechanism in an embodiment of the present invention; Figure 6 This is a front view schematic diagram of the first welding mechanism in an embodiment of the present invention; Figure 7 This is a three-dimensional structural diagram of the second clamping conveying mechanism and the supporting conveying mechanism in an embodiment of the present invention; Figure 8 This is a front view schematic diagram of the second clamping conveying mechanism and the supporting conveying mechanism in an embodiment of the present invention; Figure 9 This is a circuit module diagram of an embodiment of the present invention. Detailed Implementation

[0018] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0019] The embodiments of the present invention are as follows: refer to Figure 1 , Figure 2 , Figure 3 and Figure 9 As shown, a welding apparatus includes a frame 1, a control system 2, a first welding mechanism 3, a second welding mechanism 4, a first clamping and conveying mechanism 5, a second clamping and conveying mechanism 6, and a supporting and conveying mechanism 7. The first clamping and conveying mechanism 5 is mounted on the frame 1 and is used to maintain the conveying of the laminated strip material. It is defined as extending longitudinally along the conveying direction and having transverse directions that are perpendicular to the longitudinal direction and located on the same horizontal plane. The first welding mechanism 3 is located at the output end of the first clamping and conveying mechanism 5 and is used to intermittently weld the first welding areas that are equally spaced on the laminated strip material. The second welding mechanism 4 is located at the output end of the first welding mechanism 3 and is used to intermittently weld the first welding areas that are equally spaced on the laminated strip material. The second welding area is intermittently welded, and the first welding area and the second welding area are distributed or overlap in the transverse direction. Preferably, the first welding area and the second welding area are distributed in the transverse direction. The second clamping and conveying mechanism 6 is located at the output end of the second welding mechanism 4. The supporting and conveying mechanism 7 is located between the first clamping and conveying mechanism 5 and the second clamping and conveying mechanism 6, and is distributed on the transverse side of the first welding mechanism 3 and the second welding mechanism 4. It is used to support part of the laminated strip material in the transverse direction. The first welding mechanism 3, the second welding mechanism 4, the first clamping and conveying mechanism 5, the second clamping and conveying mechanism 6 and the supporting and conveying mechanism 7 are electrically connected to the control system 2.

[0020] This welding device, through a first clamping and conveying mechanism 5 and a second clamping and conveying mechanism 6, maintains the stacked strip material during transport, ensuring its good posture for subsequent welding. Furthermore, a first welding mechanism 3 and a second welding mechanism 4 are respectively used to intermittently weld the first and second welding areas, which are equally spaced on the stacked strip material. The first and second welding areas are distributed laterally. Compared to existing welding devices suitable for adult pull-up trousers, this device is better suited for adult pull-up trousers, menstrual pants, and other disposable sanitary products with larger waist sizes. The high production speed effectively improves the stitch strength and welding quality, solving the problem of poor stitching effect in existing welding devices for adult pull-up pants. The supporting conveying mechanism 7 is located between the first clamping conveying mechanism 5 and the second clamping conveying mechanism 6, and is distributed on one side of the first welding mechanism 3 and the second welding mechanism 4. It supports the portion of the stacked strip material that is laterally away from the first and second welding areas. Working in conjunction with the first clamping conveying mechanism 5 and the second clamping conveying mechanism 6, it ensures the conveying posture of the stacked strip material, resulting in high welding precision and further improving welding quality.

[0021] Specifically, both the first welding mechanism 3 and the second welding mechanism 4 have a conveying channel 8 for the stacked strip material to pass through. The first clamping conveying mechanism 5 and the second clamping conveying mechanism 6 are located on a support platform 9, which passes through the conveying channel 8. A through groove 10 is provided on the support platform 9 at the locations of the first welding mechanism 3 and the second welding mechanism 4, so that the stacked strip material can be stably supported during the conveying and welding process, ensuring the stability of material conveying and welding, and improving welding accuracy and quality.

[0022] refer to Figures 4 to 8 As shown, in this embodiment, both the first welding mechanism 3 and the second welding mechanism 4 include a bracket 31, a lifting cylinder 32, a first drive motor 33, a guide assembly 34, a mounting assembly, an ultrasonic generator 35, a welding head 36, and an anvil roller 37. The bracket 31 is mounted on the frame 1, the guide assembly 34 is mounted on the bracket 31, the mounting assembly is mounted on the guide assembly 34, the lifting cylinder 32 is mounted on the bracket 31 and connected to the mounting assembly, used to drive the mounting assembly to move up and down along the guide assembly 34, and the ultrasonic generator 35 and the welding head 36 are mounted on the mounting assembly and weld... The connector 36 is connected to the ultrasonic generator 35. The anvil roller 37 is rotatably mounted on the frame 1 and distributed on the lower side of the welding head 36. The anvil roller 37 has a raised portion 38 on its circumferential surface that cooperates with the welding head 36. The first drive motor 33 is connected to the anvil roller 37 and drives the installation assembly through the lifting cylinder 32 to drive the ultrasonic generator 35 and the welding head 36 to move up and down. With the rotatable anvil roller 37 and the raised portion 38 on the anvil roller 37, precise ultrasonic welding of stacked strip materials can be achieved. The structure is reasonable, the operation is convenient, and it helps to improve welding efficiency and welding quality.

[0023] Furthermore, the mounting assembly includes a movable base 101 and a mounting base 102. The guide assembly 34 includes a second drive motor 103, a ball screw 104, two first guide rails 105, a first slider 106, two second guide rails 107, a second slider 108, four side plates 109, and a wedge block (not shown in the figure). The two first guide rails 105 are respectively disposed on the transverse two sides of the bracket 31, and the first guide rails 105 are distributed along the vertical direction. The side plates 109 are disposed on the first guide rails 105 via the first sliders 106. The second guide rails 107 are disposed on the front side of the bracket 31. The movable base 101 is disposed on the second guide rails 107 via the second sliders 108. The side plates 109 are connected to the movable base 101 by locking bolts 110. The two transverse sides of the seat 101 are threaded together. The lifting cylinder 32 is connected to the moving seat 101. The mounting seat 102 is connected to the moving seat 101 through a wedge block. The welding head 36 is disposed on the mounting seat 102. A pressure sensor 111 is provided between the welding head 36 and the mounting seat 102. The ball screw 104 is threadedly connected to the wedge block. The second drive motor 103 is connected to the ball screw 104. The pressure sensor 111 and the second drive motor 103 are electrically connected to the control system 2. In this embodiment, the control system 2 is a single-chip microcomputer or PLC controller with programming function, preferably a PLC controller. The pressure sensor 111 is an electrical component that can be used to detect pressure and is sold on the market.

[0024] In use, when the area to be welded is directly below the welding head, the control system 2 controls the lifting cylinder 32 to move, driving the moving seat 101 to slide downwards along the first guide rail 105 and the second guide rail 107, so that the welding head 36 cooperates with the anvil roller 37 to press the material and achieve welding. During installation, the first guide rail 105, located on both sides of the bracket 31, cooperates with the side plate 109, and the locking bolt 110 locks the side plate 109 to the side of the moving seat 101, achieving a clamping effect and reducing the cumulative installation error between the first guide rail 105, the first slider 106, and the moving seat 101. Furthermore, the moving seat 101 is mounted on the second guide rail 107 via the second slider 108, providing stable guidance for the movement of the moving seat 101 and the side plate 109, ensuring the stability of each component during operation, reducing welding errors caused by vibration and other factors, and improving the reliability and service life of the equipment. This system improves operational accuracy and enables precise control of the welding head 36 position. During adjustment, a pressure sensor 111 is installed between the welding head 36 and the mounting base 102, and the pressure sensor 111 is electrically connected to the control system 2. During welding, the pressure sensor 111 can monitor the pressure applied by the welding head 36 in real time and feed the data back to the control system 2. Based on the feedback information, when errors occur due to prolonged use, the control system 2 controls the second drive motor 103 to drive the ball screw 104 to rotate, and the wedge block adjusts the position and pressure of the welding head 36 in a timely manner. This avoids the welding quality being affected by excessive or insufficient pressure, effectively solving the accuracy problem caused by prolonged use in the prior art, ensuring the stability of the welding process, improving the heat sealing effect, and enabling adjustments without stopping the machine, thus improving production efficiency. Furthermore, a flexible gasket 112 is provided between the mounting base 102 and the movable base 101. The flexible gasket 112 can play a buffering role. During the welding process, when the welding head 36 is subjected to impact or vibration, the flexible gasket 112 can absorb some energy, reduce the impact and vibration on the mounting base 102 and the entire guide assembly 34, reduce wear between components, extend the service life of the equipment, and at the same time provide a certain buffer space during adjustment to improve the accuracy of adjustment.

[0025] In this embodiment, the first welding mechanism 3 and the second welding mechanism 4 are in the same direction, that is, they are both facing the input end of the laminated strip material. This allows the support 31 to play a supporting role during the welding process of the anvil roller 37 rotating and cooperating with the welding head 36, thereby improving the installation strength of the welding head 36, preventing shaking, and thus improving the sewing quality.

[0026] It is worth noting that the side plate 109 has an L-shaped structure. The side plate 109 includes a first plate 119 and a second plate 129. The first slider 106 is locked onto the first plate 119, and the second plate 129 is locked onto the front side of the movable seat 101. This makes the connection between the side plate 109 and the first slider 106 and the movable seat 101 more stable, and can better withstand various forces generated during the welding process, thereby enhancing the structural stability of the entire guide assembly 34. During installation, the L-shaped side plate 109 can be more easily positioned and fixed with the first slider 106 and the movable seat 101, improving installation efficiency. At the same time, during equipment maintenance, it is also convenient to disassemble and inspect the side plate 109, reducing maintenance difficulty and cost.

[0027] Furthermore, the first slider 106 is provided with a filling port 113 for easy application of grease or lubricating oil. During equipment operation, relative sliding occurs between the first slider 106 and the first guide rail 105, which can easily lead to wear. The convenient application of grease or lubricating oil through the filling port 113 can form a lubricating film between the first slider 106 and the first guide rail 105, reducing friction and wear, thereby extending the service life of the first slider 106 and the first guide rail 105.

[0028] In this embodiment, both the first clamping and conveying mechanism 5 and the second clamping and conveying mechanism 6 include an upper conveying belt 51 and a lower conveying belt 52. The rotation of the upper conveying belt 51 and the lower conveying belt 52 is driven by power, and the surface linear velocity of the upper conveying belt 51 and the lower conveying belt 52 is the same. That is, the upper conveying belt 51 and the lower conveying belt 52 are respectively connected to an upper drive motor 54 and a lower drive motor 55. The upper drive motor 54 and the lower drive motor 55 are electrically connected to the control system 1, which can ensure that the stacked strip material is subjected to uniform clamping force during the conveying process, avoid the material from shifting or wrinkling during the conveying process, ensure the stability and accuracy of the material conveying, and help improve the welding quality.

[0029] Furthermore, the lower conveyor belt 52 can move vertically up and down relative to the upper conveyor belt 51. During operation, both the upper conveyor belt 51 and the lower conveyor belt 52 apply pressure to the laminated strip material, and the magnitude of this pressure is adjustable. Specifically, a drive cylinder 53 is connected to the lower conveyor belt 52, and the drive cylinder 53 is electrically connected to the control system 2. The drive cylinder 53 drives the lower conveyor belt 52 to move up and down, and the magnitude of the pressure applied by the upper conveyor belt 51 and the lower conveyor belt 52 to the laminated strip material is adjustable. The clamping pressure can be flexibly adjusted according to the laminated strip material of different materials and thicknesses to ensure the stability and flatness of the material during the conveying process. At the same time, it avoids damage to the material due to excessive pressure or slippage due to insufficient pressure, further improving the welding quality and applicability of the device.

[0030] Furthermore, the longitudinal length of the upper conveyor belt 51 is greater than that of the lower conveyor belt 52, which allows the upper conveyor belt 51 to better cover the material surface when clamping and conveying stacked strip materials, providing a more stable clamping and conveying effect. Especially when conveying materials with irregular shapes or edges that require special treatment, it can ensure the overall stability of the material conveying, which is beneficial to improving welding quality and the reliability of the device.

[0031] In this embodiment, the control method of the control system 2 includes the following steps: 1) Start the welding device. The control system 2 performs initialization operations on the entire device, including checking the power connection status of the first welding mechanism 3, the second welding mechanism 4, the first clamping and conveying mechanism 5, the second clamping and conveying mechanism 6, and the supporting and conveying mechanism 7, and whether the sensor signals are normal. If there is any abnormality, an alarm will be issued to prompt maintenance personnel to troubleshoot the fault. After all the checks are normal, proceed to the next step. 2) The control system 2 controls the first clamping and conveying mechanism 5 to start running, and maintains stable conveying of the stacked strip material at a preset linear speed. At the same time, it monitors the operating status of the first clamping and conveying mechanism 5 in real time, such as the motor speed and the clamping force of the clamping components, to ensure its stable operation. 3) During the process of conveying the stacked strip material by the first clamping and conveying mechanism 5, the control system 2 continuously monitors the position information of the stacked strip material and determines whether the first welding area to be welded has reached the designated welding position below the first welding mechanism 3 by using a position sensor installed near the output end of the first clamping and conveying mechanism 5. 4) When the first welding area reaches the designated welding position, the control system 2 controls the first welding mechanism 3 to start and intermittently weld the first welding area according to the preset welding parameters. At the same time, the welding current, voltage and other parameters of the first welding mechanism 3 are monitored in real time. If the parameters fluctuate abnormally, the welding parameters are adjusted in time to ensure the welding quality. 5) After the welding of the first welding area is completed, the control system 2 controls the first welding mechanism 3 to stop welding, while continuing to control the first clamping and conveying mechanism 5 to convey the stacked strip material. During the conveying process, the control system 2 monitors the position of the stacked strip material and the operating status of the first clamping and conveying mechanism 5. 6) As the stacked strip material continues to be conveyed, the control system 2 uses a position sensor installed near the input end of the second welding mechanism 4 to determine whether the second welding area has reached the designated welding position below the second welding mechanism 4; 7) When the second welding area reaches the designated welding position, the control system 2 controls the second welding mechanism 4 to start and intermittently weld the second welding area according to the preset welding parameters. The control system 2 also monitors the welding current, voltage and other parameters of the second welding mechanism 4 in real time and adjusts the parameters according to the monitoring results. 8) Throughout the welding process, the control system 2 controls the supporting conveying mechanism 7 to work in real time according to the conveying status of the laminated strip material. Through pressure sensors and position sensors installed on the supporting conveying mechanism 7, the control system 2 adjusts the supporting force and position of the supporting conveying mechanism 7 according to the force and position changes of the laminated strip material in the lateral direction, ensuring stable support of part of the laminated strip material in the lateral direction; 9) After the welding of the second welding area is completed, the control system 2 controls the second welding mechanism 4 to stop welding. When the welded laminated strip material reaches the second clamping and conveying mechanism 6, the control system 2 controls the second clamping and conveying mechanism 6 to start and convey the welded laminated strip material to the next process. At the same time, the entire welding device is re-inspected to ensure that each mechanism is in a safe state after it stops operating.

[0032] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] In this invention, 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," "over," and "on top" of 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.

[0035] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.

Claims

1. A welding device characterized by: The device comprises a rack, a control system, a first welding mechanism, a second welding mechanism, a first clamping conveying mechanism, a second clamping conveying mechanism and a supporting conveying mechanism. The first clamping conveying mechanism is arranged on the rack and is used for conveying the stacked belt-shaped material. The first welding mechanism is arranged at the output end of the first clamping conveying mechanism and is used for intermittently welding the first welding area arranged at equal intervals on the stacked belt-shaped material. The second welding mechanism is arranged at the output end of the first welding mechanism and is used for intermittently welding the second welding area arranged at equal intervals on the stacked belt-shaped material. The first welding area and the second welding area are arranged along the transverse direction or coincide with each other. The second clamping conveying mechanism is arranged at the output end of the second welding mechanism. The supporting conveying mechanism is arranged between the first clamping conveying mechanism and the second clamping conveying mechanism and is arranged on the transverse side of the first welding mechanism and the second welding mechanism and is used for supporting part of the stacked belt-shaped material in the transverse direction. The first welding mechanism, the second welding mechanism, the first clamping conveying mechanism, the second clamping conveying mechanism and the supporting conveying mechanism are electrically connected with the control system.

2. The welding device of claim 1, wherein: The first welding mechanism and the second welding mechanism each have a conveying channel for the stacked belt-shaped material. The support table is arranged between the first clamping conveying mechanism and the second clamping conveying mechanism and passes through the conveying channel. The support table is provided with a through slot at the first welding mechanism and the second welding mechanism.

3. The welding device according to claim 1 or 2, characterized in that: The first welding mechanism and the second welding mechanism each comprise a bracket, a lifting cylinder, a first driving motor, a guide assembly, a mounting assembly, an ultrasonic generator, a welding head and an anvil roller. The bracket is arranged on the rack. The guide assembly is arranged on the bracket. The mounting assembly is arranged on the guide assembly. The lifting cylinder is arranged on the bracket and is connected with the mounting assembly and is used for driving the mounting assembly to move up and down along the guide assembly. The ultrasonic generator and the welding head are arranged on the mounting assembly and the welding head is connected with the ultrasonic generator. The anvil roller is rotatably arranged on the rack and is arranged on the lower side of the welding head. The circumferential surface of the anvil roller is provided with a protruding portion matched with the welding head. The first driving motor is connected with the anvil roller.

4. The welding device of claim 3, wherein: The mounting assembly comprises a moving seat and a mounting seat, the guide assembly comprises a second driving motor, a ball screw, two first guide rails, a first sliding block, at least two second guide rails, a second sliding block, an even number of side plates and a wedge-shaped block, the two first guide rails are respectively arranged on the transverse two side surfaces of the support and are distributed along the vertical direction, the side plates are arranged on the first guide rails through the first sliding block, the second guide rails are arranged on the front side surface of the support, the moving seat is arranged on the second guide rails through the second sliding block, the side plates are threadedly connected with the transverse two side surfaces of the moving seat through locking bolts, the lifting cylinder is connected with the moving seat, the mounting seat is connected with the moving seat through the wedge-shaped block, the welding head is arranged on the mounting seat, a pressure sensor is arranged between the welding head and the mounting seat, the ball screw is threadedly connected with the wedge-shaped block, the second driving motor is connected with the ball screw, and the pressure sensor and the second driving motor are electrically connected with the control system respectively.

5. The welding device of claim 4, wherein: Flexible gaskets are arranged between the mounting seat and the moving seat.

6. The welding device of claim 5, wherein: The side plates are in L-shaped structure, the side plates comprise first plate bodies and second plate bodies, the first sliding block is locked on the first plate bodies, and the second plate bodies are locked on the front side surface of the moving seat.

7. The welding device of claim 6, wherein: The first sliding block is provided with a filling port for conveniently filling lubricating grease or lubricating oil.

8. The welding device of claim 3, wherein: The first clamping conveying mechanism and the second clamping conveying mechanism each comprise an upper conveying belt and a lower conveying belt, the rotation of the upper conveying belt and the lower conveying belt is driven by power, and the surface linear velocities of the upper conveying belt and the lower conveying belt are the same.

9. The welding device of claim 8, wherein: The lower conveying belt can move up and down relative to the upper conveying belt in the vertical direction, and in working, the upper conveying belt and the lower conveying belt both exert a pressure on the laminated belt-shaped material, and the pressure can be adjusted.

10. The welding device of claim 9, wherein: The longitudinal length of the upper conveying belt is greater than that of the lower conveying belt.

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