Welding auxiliary pre-tightening mechanism

Abstract

The utility model provides an auxiliary pre-tightening mechanism for welding, which relates to the technical field of filter element manufacture, and comprises a base station and an elastic support component, the elastic support component comprises an elastic piece and a guide piece, the guide piece is arranged on the base station and is used for supporting an auxiliary piece from bottom to top, and the elastic piece is arranged on the base station. A guide groove is formed in the top, deviating from the elastic supporting assembly, of the auxiliary part, the guide groove is used for being matched with the peripheral wall of the leading-out roller to form a material channel, the elastic part is arranged on the guide part, and the guide part is driven by the elastic part to rotate under the limiting effect of the elastic part. Compared with the prior art, the spiral filter element forming device has the advantage that the problem of quality defects after a spiral filter element is formed can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter element manufacturing, in particular to a welding auxiliary pre-tightening mechanism. Background Art

[0002] Spiral filter elements are widely used in industries such as oil and gas, agriculture, healthcare, aerospace and navigation, chemicals, and food processing, primarily in pipelines, filtration systems, and high-precision equipment. These sectors place stringent demands on the strength, corrosion resistance, filtration accuracy, and durability of spiral filter elements, resulting in a continuously growing market demand.

[0003] Spiral filter elements are generally manufactured through relevant welding devices. In relevant technologies, the welding device has a lead-out roller and a welding pad. After the filter membrane and the frame are spirally wound and formed, the frame and filter membrane of the formed spiral filter element need to be welded to improve the forming stability of the frame and the filter membrane; at the same time, the welding device will be equipped with adjustable auxiliary parts to assist in the winding and fitting of the filter element and the frame.

[0004] Regarding the above-mentioned related technologies, the applicant discovered during actual operation that the spiral filter element after welding had quality defects. Utility Model Content

[0005] In order to solve the problem of quality defects after the spiral filter element is formed, the present application provides a welding auxiliary pre-tightening mechanism.

[0006] This application provides a welding auxiliary pre-tightening mechanism, which adopts the following technical solutions:

[0007] A welding auxiliary pre-tightening mechanism includes a base and an elastic support assembly, the elastic support assembly includes an elastic member and a guide member, the guide member is mounted on the base and is used to support the auxiliary member from bottom to top, the auxiliary member is provided with a guide groove at the top facing away from the elastic support assembly, the guide groove is used to cooperate with the peripheral wall of the lead-out roller to form a material channel, the elastic member is provided on the guide member, and the guide member is under the limiting action of the elastic member so that the guide member has an elastic force component in the vertical direction that at least partially resists the downward pressure of the auxiliary member.

[0008] Preferably, the guide member includes a guide column, which is extended upward, and the top end of the guide column abuts against the auxiliary member, and the bottom end of the guide column is slidably engaged with the base.

[0009] Preferably, the base includes an upper base and a lower base connected to each other, the lower base is provided with a plug-in portion, and the plug-in portion is provided with a socket that is slidably plugged into the bottom end of the guide column; when the guide column is in a natural state, a moving gap is left between the bottom end of the guide column and the bottom of the socket.

[0010] Preferably, the elastic member includes a spring, which is sleeved on the guide column. The top of the guide column is provided with a contact portion that abuts against the auxiliary member. One end of the spring abuts against the contact portion and the other end is connected to the guide column.

[0011] Preferably, an adjusting member is provided between the guide column and the base, and the adjusting member is used to adjust the compression amount of the spring; the adjusting member includes a threaded rod and a sliding part, and the sliding part is provided with a sliding hole for the guide column to pass through, and the sliding part slides with the guide column through the sliding hole, and the end of the spring away from the abutting part abuts against the sliding part; a threaded hole is provided on the plug-in part, and the threaded rod is threadedly inserted into the threaded hole, and one end of the threaded rod is rotatably connected to the sliding part, and the length direction of the threaded rod is parallel to the length direction of the guide column.

[0012] Preferably, the lower base is provided with a limiting hole for the threaded rod to pass through, the length direction of the limiting hole is perpendicular to the length direction of the threaded rod, and the width of the limiting hole is adapted to the outer diameter of the threaded rod.

[0013] Preferably, at least two groups of guide posts are provided in parallel.

[0014] Preferably, it also includes an anti-torque component, which includes an extension arm and a rotating arm. The extension arm is arranged on the interference part, and the length direction of the extension arm is parallel to the length direction of the guide column; one end of the rotating arm is rotatably connected to the extension arm, and the other end is rotatably connected to the upper base.

[0015] Preferably, a mounting platform is provided on the interference portion, and an upper surface of the mounting platform forms a mounting position for placing the auxiliary component.

[0016] Preferably, at least two groups of rotating arms are provided in parallel between the extension arm and the upper base; the interference portion is provided with an anti-torque groove for placing the mounting platform, and the anti-torque grooves on two adjacent interference portions act on the mounting platform at the same time, so that the mounting platform can resist the torque force generated by the lead-out roller when it rotates.

[0017] The utility model has the following advantages and beneficial effects:

[0018] The elastic support assembly effectively supports the auxiliary component. It consists of an elastic member and a guide member, which is mounted on the base and works in conjunction with the elastic member to provide vertical support. This structure creates a dynamic gap in the lead-out channel of the auxiliary component during welding. This dynamic gap helps mitigate structural deformation caused by pressure fluctuations during welding.

[0019] First, the presence of a dynamic gap absorbs stress fluctuations and welding pressure changes caused during the filter element molding process, ensuring that the molded filter element remains stable and prevents instability as it passes through the outlet channel. This is because the elastic support assembly provides elastic compensation, adaptively adjusting the height of the auxiliary component according to changes in welding pressure, thereby maintaining the gap between the guide groove and the outlet roller at an optimal level, effectively reducing the risk of uneven force on the filter element. Furthermore, the dynamic gap smoothly guides the filter membrane and frame during output, preventing the adverse effects of transient pressure changes caused by welding on the filter element.

[0020] Secondly, the elastic support assembly features adaptive adjustment. During the welding process, when the auxiliary component is subjected to varying downward pressure, the elastic component provides a corresponding reaction force to offset some of the external pressure, thereby enabling the auxiliary component to dynamically self-adjust. This adjustment process requires no human intervention; the system automatically adjusts the balance based on the pressure, ensuring stable operation over long-term use. Furthermore, this self-balancing mechanism effectively reduces the need for frequent adjustments and maintenance, improving the equipment's ease of use and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a partial installation diagram of some embodiments of the present application;

[0023] Figure 2 It is a schematic diagram of the structure of some embodiments of the present application;

[0024] Figure 3 is a partial cross-sectional view of some embodiments of the present application;

[0025] Figure 4 yes Figure 3 A magnified view of part A in FIG;

[0026] Figure 5 It is a partial schematic diagram of some embodiments of the present application;

[0027] Figure 6 is a side view of some embodiments of the present application;

[0028] Figure 7 It is an exploded schematic diagram of some embodiments of the present application.

[0029] The following are marked in the figure:

[0030] 100. Base; 110. Upper base; 120. Lower base; 121. Connecting part; 1210. Socket; 1211. Moving gap; 122. Threaded hole; 123. Limiting hole; 200. Frame; 300. Lead-out roller; 400. Conveyor belt; 500. Solder pad; 600. Elastic support assembly; 610. Elastic member; 611. Spring; 620. Guide member; 621. Guide column; 6210. Interference part; 6211. Anti-torque groove; 6220. Mounting table; 700. Auxiliary member; 710. Guide groove; 800. Adjusting member; 810. Threaded rod; 820. Sliding part; 821. Sliding hole; 900. Anti-torque assembly; 910. Extension arm; 920. Rotating arm. DETAILED DESCRIPTION

[0031] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0032] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0033] Spiral filter elements are widely used in various industrial fields, including oil and gas transportation, agricultural irrigation, medical equipment, aerospace and navigation, chemical production, and food processing. These fields place extremely stringent performance requirements on spiral filter elements, especially when used for long periods of time, under high intensity, and in corrosive environments. These requirements place extremely high standards on the filter element's strength, corrosion resistance, filtration accuracy, and durability. To meet these requirements, the filter element's structural design and manufacturing process must ensure high strength and precision, especially in terms of pressure resistance, corrosion resistance, and long-term operation. Spiral filter elements must exhibit excellent performance. As market demand continues to expand, the demand for high-performance spiral filter elements continues to grow.

[0034] A Chinese patent application with publication number CN117862279A discloses a rigid tube blank and its skeleton structure. The spiral filter element in this application is manufactured using a welding process. The main manufacturing process involves spirally winding the filter membrane and the supporting skeleton into a mold. After molding, the skeleton and the filter membrane are fixed by welding to ensure the overall structural stability and molding stability. In the prior art, the welding device generally includes a lead-out roller and a welding plate, which are used to weld the molded filter element during the welding process. However, the applicant discovered in actual production and use that this welding process has certain technical problems, resulting in quality defects in the produced spiral filter element during use, specifically structural instability and filter element failure.

[0035] Specifically, these issues primarily arise during the welding process. As the spiral filter element's skeleton and filter membrane advance along a spiral path on the draw-off roller, downward pressure is applied to the roller. This pressure can easily cause the roller to deform downward, shifting the weld point and causing unstable welding. Furthermore, as the spiral filter element continues to wind and weld, structural deformation can be transferred to the weld area, causing wrinkles in the welded area and compromising the final filter element's finish and weld strength.

[0036] These welding defects not only affect the overall strength and structural stability of the spiral filter element, but may also cause premature failure during actual use. Especially when used in high-pressure, high-temperature, and corrosive environments, defective areas of the filter element can easily become stress concentration points, accelerating damage and failing to meet the stringent filtration performance requirements of high-precision equipment and systems.

[0037] Therefore, the existing spiral filter element manufacturing technology has the disadvantage that wrinkles are easily generated between the skeleton and the filter membrane during the winding process, resulting in unstable welding quality. Therefore, an improved device is urgently needed to ensure that the skeleton and the filter membrane of the spiral filter element fit tightly together to prevent wrinkles and improve welding quality, thereby improving the molding stability and service life of the spiral filter element.

[0038] Based on this, the present application provides a welding auxiliary pre-tightening mechanism. The welding auxiliary pre-tightening mechanism is provided on the welding device. Figure 1The welding device includes a frame 200, a take-off roller 300, a conveyor belt 400, and a welding pad 500. The take-off roller 300 is rotatably mounted on the frame 200, the conveyor belt 400 is partially wound around the inlet end of the take-off roller 300, and the welding pad 500 is rotatably mounted on the frame 200 at the outlet end of the take-off roller 300. After spiral winding, the filter membrane and the frame are wound onto the take-off roller 300 via the conveyor belt 400 and then moved out of the outlet end of the take-off roller 300 along the length of the take-off roller 300. At the same time, since the welding pad 500 is located near the outlet end of the take-off roller 300, during its rotation, a portion of its surface can rotate to be located in the moving path of the filter membrane and the frame, thereby forming a welding point. This allows the mutually contacting portion of the filter membrane and the frame during spiral winding to pass through the welding point, and the contacting portion of the two is continuously welded at the outlet end of the take-off roller 300 to achieve the final welded state.

[0039] Please combine Figures 1 to 7 Some embodiments of the present application provide a welding auxiliary pre-tightening mechanism, which includes a base 100 and an elastic support assembly 600. The elastic support assembly 600 includes an elastic member 610 and a guide member 620. The guide member 620 is installed on the base 100 and is used to support the auxiliary member 700 from bottom to top. The elastic member 610 is provided on the guide member 620, and the guide member 620 is limited by the elastic member 610 so that the guide member 620 has an elastic force component in the vertical direction that at least partially resists the downward pressure of the auxiliary member 700. Exemplarily, the base 100 is installed on the frame 200. It is worth noting that the appended FIG. Figure 1 Part of the rack 200 structure is hidden in the figure, but it should be understood that the base 100 is set on the rack 200.

[0040] At the same time, a guide groove 710 is provided on the top of the auxiliary component 700 away from the elastic support assembly 600. The guide groove 710 is used to cooperate with the peripheral wall of the lead-out roller 300 to form a material channel.

[0041] In this configuration, the elastic support assembly 600 is composed of an elastic member 610 and a guide member 620. The guide member 620 is mounted on the base 100 and provides an upward support force under the action of the elastic member 610. This structural design allows the lead-out channel on the auxiliary member 700 to form a dynamic gap during the welding process to cope with structural deformation caused by changes in welding pressure.

[0042] The role of the dynamic gap is that it can effectively absorb the stress fluctuations and welding pressure changes of the filter element during the welding process, thereby ensuring that the formed filter element remains stable when passing through the material channel and avoiding instability. Because the elastic support assembly 600 can provide elastic support in the vertical direction, this dynamic gap can be adaptively adjusted according to the pressure changes during the welding process, keeping the gap between the guide groove 710 and the lead-out roller 300 always in an ideal state, thereby reducing the risk of uneven force on the filter element during welding. In addition, the setting of the dynamic gap helps to guide the smooth output of the filter element and avoid the adverse effects of instantaneous pressure changes generated during the welding process on the material channel.

[0043] Furthermore, the elastic support assembly 600 features adaptive adjustment. When the auxiliary component 700 is subjected to varying degrees of downward pressure during welding, the elastic member 610 provides a corresponding reaction force to offset some of the externally applied pressure, allowing the auxiliary component 700 to dynamically self-adjust. This adjustment process is automatic, requiring no additional human intervention, allowing the equipment to maintain a stable operating state during long-term operation. This self-balancing mechanism effectively reduces the need for frequent adjustments and maintenance, improving operational simplicity and efficiency.

[0044] In summary, the welding auxiliary preload mechanism, through the elastic support assembly 600, provides dynamic support for the auxiliary component 700, ensuring that the outlet channel maintains an appropriate clearance during the welding process. This design not only helps ensure the stability of the molded membrane during filter element manufacturing, but also addresses structural deformation caused by changes in welding pressure, ensuring smooth output of the auxiliary material. After the equipment is debugged, the system can achieve automatic self-balancing without manual intervention, thereby improving welding quality and overall production efficiency.

[0045] In some embodiments, reference Figure 2 、 Figure 3 The guide member 620 includes a guide column 621, which is extended upward, and the top end of the guide column 621 abuts against the auxiliary member 700, and the bottom end slides with the base 100. Exemplarily, the guide column 621 extends upward at an angle. In this way, the upward extension of the guide column 621 enables it to be in close contact with the top of the auxiliary member 700, thereby providing a strong support point when downward pressure is applied. This support point can ensure that the auxiliary member 700 always remains in an ideal working position and reduce the offset phenomenon caused by external impact or material movement. Such a design effectively avoids unqualified welding points due to uneven downward pressure during the welding process, ensures the effective fit of the skeleton and the filter membrane, and improves the welding quality.

[0046] Furthermore, the sliding fit between the bottom end of guide post 621 and base 100 allows it to flexibly adapt to different working conditions. During the welding process, as the material dynamically changes, guide post 621 can move freely, preventing obstructions or jamming caused by a fixed position, thereby maintaining smooth and efficient welding equipment operation. This sliding design not only reduces frictional resistance and improves the system's response speed, but also further enhances the stability and reliability of the welding process.

[0047] In some embodiments, reference Figure 3 、 Figure 4 The base 100 includes an upper base 110 and a lower base 120 connected to each other. The lower base 120 is provided with a plug-in portion 121, which has a socket 1210 that is slidably engaged with the bottom end of the guide post 621. Furthermore, when the guide post 621 is in a natural state, a movable gap 1211 is left between the bottom end of the guide post 621 and the bottom of the socket 1210.

[0048] Furthermore, the layered design of the base 100 ensures that the lower base 120 not only provides stable support but also features a plug-in portion 121 and a socket 1210, enabling a sliding engagement with the bottom end of the guide post 621. This design effectively mitigates pressure fluctuations caused by thermal expansion or other dynamic changes in the material during welding, ensuring that the guide post 621 can move freely and maintain close contact with the auxiliary component 700.

[0049] At the same time, when guide post 621 is in its natural position, a clearance 1211 is left between its bottom end and the bottom of socket 1210, allowing it to move freely up and down during welding without being restricted. This clearance 1211 not only reduces friction and mitigates the impact on the overall system performance, but also ensures that guide post 621 can quickly adjust its position and maintain the preload effect when subjected to external forces or changes in material weight, effectively preventing poor welding caused by positional offset. Furthermore, this design reduces fatigue losses in the system, improves the durability of the overall structure, and extends its service life.

[0050] Through this flexible sliding fit mechanism, the welding auxiliary preload mechanism can easily cope with different pressures and position changes under various working conditions, ensuring stability and reliability during the welding process.

[0051] In some embodiments, Figure 2 、 Figure 3As shown, the elastic member 610 includes a spring 611, which is sleeved on the guide column 621. The top of the guide column 621 is provided with a resistance portion 6210 that abuts against the auxiliary member 700. One end of the spring 611 abuts against the resistance portion 6210 and the other end is connected to the guide column 621.

[0052] In this arrangement, spring 611 is sheathed around guide post 621, forming an effective elastic support system. This design automatically adjusts the preload during dynamic welding to accommodate material changes and external pressure fluctuations. Specifically, when guide post 621 moves downward due to welding pressure or the weight of the material, spring 611 provides a reverse elastic force, maintaining close contact between the contact portion 6210 at the top of guide post 621 and auxiliary component 700, thereby ensuring a more secure fit between the filter membrane and the frame during welding.

[0053] At the same time, spring 611 maintains a certain degree of elasticity and restoring force in all operating states, ensuring that the bond between the frame and the filter membrane is not affected by other external factors during the welding process. Since one end of spring 611 abuts against the abutment portion 6210 and the other end is connected to the guide post 621, a simple and effective support structure is formed, ensuring rapid response and position adjustment during the preload process, avoiding welding defects caused by deformation during the welding process.

[0054] Furthermore, this elastic design significantly enhances the durability of the welding auxiliary preload mechanism. Because spring 611 absorbs some of the impact and vibration, it reduces wear on guide column 621 and other connected components, thereby increasing the overall service life of the device. Especially in high-intensity welding environments, the flexibility of spring 611 ensures a more stable welding process and reduces the risk of failure due to component fatigue or deformation.

[0055] In some embodiments, reference Figure 2 、 Figure 5 An adjusting member 800 is provided between the guide post 621 and the base 100. The adjusting member 800 is used to adjust the compression amount of the spring 611. Exemplarily, the adjusting member 800 includes a threaded rod 810 and a sliding portion 820. The sliding portion 820 defines a sliding hole 821 through which the guide post 621 passes. The sliding portion 820 slidably engages with the guide post 621 through the sliding hole 821, and the end of the spring 611 away from the abutment portion 6210 abuts against the sliding portion 820.

[0056] At the same time, a threaded hole 122 is formed on the plug-in portion 121, and a threaded rod 810 is threadedly inserted into the threaded hole 122. One end of the threaded rod 810 is rotatably connected to the sliding portion 820, and the length direction of the threaded rod 810 is parallel to the length direction of the guide column 621. For example, to facilitate the rotation of the threaded rod 810, a rotation button is provided at the end of the threaded rod 810.

[0057] On this basis, adjustment member 800 comprises a threaded rod 810 and a sliding portion 820. Sliding portion 820 has a sliding hole 821, which allows guide post 621 to pass through and slide with it. This design allows the operator to easily adjust the compression of spring 611 according to different material properties and welding conditions, thereby achieving precise control of the preload force during the welding process.

[0058] Specifically, threaded rod 810 is connected to threaded hole 122 in base 100, allowing it to rotate and change its relative position during adjustment, directly affecting the compression state of spring 611. The presence of adjustment member 800 allows the welding equipment to maintain optimal operating conditions under different operating environments. In particular, when working with filter membranes and frames of varying thicknesses, the preload can be effectively adjusted to ensure a stable fit during the welding process. This flexibility is crucial to welding quality and can significantly reduce welding defects caused by uneven pressure.

[0059] Furthermore, the design of adjustment member 800 improves the ease of operation of the welding equipment. Operators can quickly and accurately adjust the compression of spring 611 by simply rotating threaded rod 810, eliminating the need for complex disassembly or debugging of the entire equipment. This reduces operational complexity and improves work efficiency. Furthermore, the parallel layout of the adjustment components reduces equipment space usage and enhances the overall compactness and stability of the structure.

[0060] In some embodiments, Figure 4 、 Figure 5 As shown, the lower base 120 is provided with a limiting hole 123 for the threaded rod 810 to pass through. The length of the limiting hole 123 is perpendicular to the length of the threaded rod 810, and the width of the limiting hole 123 is adapted to the outer diameter of the threaded rod 810. Illustratively, a plurality of limiting holes 123 are provided on the lower base 120, and the remaining limiting holes 123 are used to allow the end of the guide post 621 away from the interference portion 6210 to pass through.

[0061] With such a configuration, since the lead-out roller 300 may tilt downward under the action of its own gravity, thereby applying vertical downward pressure to the elastic support component 600, the elastic support component 600 will drive the guide column 621 and the threaded rod 810 to undergo coordinated elastic deformation when subjected to vertical downward pressure, that is, the end of the guide column 621 and the threaded rod 810 away from the pressure will undergo elastic deformation under the action of pressure. At this time, the limiting hole 123 provides an avoidance space for the compressive deformation of the guide column 621 and the threaded rod 810, so that the guide column 621 and the threaded rod 810 can undergo normal elastic deformation.

[0062] Furthermore, the design of retaining hole 123 not only ensures free movement of threaded rod 810 during adjustment, but also aligns its length perpendicularly to the length of threaded rod 810, preventing structural deformation or damage to threaded rod 810 caused by improper lateral force during operation. This design effectively prevents potential deviation or asymmetry during adjustment, thereby ensuring more stable and uniform adjustment of the compression of spring 611.

[0063] In some embodiments, at least two parallel sets of guide posts 621 are provided. Adding multiple sets of guide posts 621 can better distribute the downward force exerted on the auxiliary component 700, effectively reducing the risk of deformation or damage to a single guide post 621 due to overload. This configuration ensures that the auxiliary component 700 remains firmly in place during welding, preventing weld point displacement or poor contact caused by structural instability, which is crucial for weld quality.

[0064] Furthermore, the installation of multiple sets of guide posts 621 increases the overall system's load capacity, enabling the welding auxiliary preload mechanism to adapt to filter elements and frames of varying thicknesses and materials, enhancing its flexibility under various operating conditions. This design not only supports a wider range of applications but also reduces the time required for equipment adjustments, improving work efficiency.

[0065] In some embodiments, reference Figure 6 、 Figure 7 The welding auxiliary pre-tightening mechanism of the present application further includes an anti-torque assembly 900, which includes an extension arm 910 and a rotation arm 920. The extension arm 910 is disposed on the abutment portion 6210, and the length direction of the extension arm 910 is parallel to the length direction of the guide post 621. Furthermore, one end of the rotation arm 920 is rotationally connected to the extension arm 910, and the other end is rotationally connected to the upper base 110.

[0066] On this basis, the parallel arrangement of the extension arm 910 and the guide column 621 allows the extension arm 910 to effectively disperse the torque applied by the spiral filter element to the interference portion 6210 during rotation, thereby reducing the direct pressure on the guide column 621. During the welding process of the spiral filter element, when the auxiliary component 700 is subjected to the torque of the spiral filter element, the rotating arm 920 on the extension arm 910 can effectively counteract the torque, reducing the lateral force generated by the torque on the guide column 621, so that the guide column 621 remains stable during welding. At the same time, the design of the rotating arm 920 allows the extension arm 910 to rotate freely to adapt to changes in the shape or size of the material during welding, which further enhances the flexibility of the welding operation.

[0067] In some embodiments, Figure 6 、 Figure 7 As shown, a mounting platform 6220 is provided on the interference portion 6210, and the upper surface of the mounting platform 6220 forms a mounting position for the auxiliary component 700. For example, the mounting position is configured as an upwardly protruding arc-shaped mounting surface, and the bottom of the auxiliary component 700 is provided with an arc-shaped groove that matches the mounting surface, thereby making the connection between the interference portion 6210 and the mounting platform 6220 faster and more stable.

[0068] Illustratively, at least two sets of rotating arms 920 are provided in parallel between the extension arm 910 and the upper base 110. Meanwhile, the interference portion 6210 is provided with an anti-torque groove 6211 for the mounting platform 6220 to be placed. The anti-torque grooves 6211 on two adjacent interference portions 6210 act on the mounting platform 6220 simultaneously, so that the mounting platform 6220 can resist the torque generated by the extraction roller 300 during rotation. With such an arrangement, when the torque generated by the spiral filter element during rotation acts on the auxiliary component 700, the auxiliary component 700 will transfer this part of the torque to the mounting platform 6220. Since the anti-torque groove 6211 on the resistance part 6210 cooperates with the mounting platform 6220, the torque borne by the mounting platform 6220 will be transferred to the resistance part 6210 through the anti-torque groove 6211, and then the torque will be resisted by the resistance part 6210. This helps to maintain the stable state of the spiral filter element during the rotation welding process, thereby improving the uniformity and firmness of the welding.

[0069] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding auxiliary pre-tightening mechanism, characterized in that: The invention comprises a base (100) and an elastic support assembly (600), wherein the elastic support assembly (600) comprises an elastic member (610) and a guide member (620), wherein the guide member (620) is mounted on the base (100) and is used to support the auxiliary member (700) from bottom to top, wherein the auxiliary member (700) is provided with a guide groove (710) at the top facing away from the elastic support assembly (600), wherein the guide groove (710) is used to cooperate with the peripheral wall of the lead-out roller (300) to form a material channel, wherein the elastic member (610) is provided on the guide member (620), and the guide member (620) is limited by the elastic member (610) so that the guide member (620) has an elastic force component in the vertical direction that at least partially resists the downward pressure of the auxiliary member (700).

2. The welding auxiliary pre-tightening mechanism according to claim 1, characterized in that: The guide member (620) includes a guide column (621), the guide column (621) is extended upward, and the top end of the guide column (621) is in contact with the auxiliary member (700), and the bottom end is in sliding cooperation with the base (100).

3. The welding auxiliary pre-tightening mechanism according to claim 2, characterized in that: The base (100) comprises an upper base (110) and a lower base (120) connected to each other, the lower base (120) is provided with a plug-in portion (121), and the plug-in portion (121) is provided with a socket (1210) that is slidably plugged into the bottom end of the guide column (621); When the guide column (621) is in a natural state, a moving gap (1211) is left between the bottom end of the guide column (621) and the bottom of the insertion hole (1210).

4. The welding auxiliary pre-tightening mechanism according to claim 3, characterized in that: The elastic member (610) includes a spring (611), and the spring (611) is sleeved on the guide column (621). The top end of the guide column (621) is provided with a contact portion (6210) that contacts the auxiliary member (700). One end of the spring (611) contacts the contact portion (6210), and the other end is connected to the guide column (621).

5. The welding auxiliary pre-tightening mechanism according to claim 4, characterized in that: An adjusting member (800) is provided between the guide column (621) and the base (100), and the adjusting member (800) is used to adjust the compression amount of the spring (611); The adjusting member (800) includes a threaded rod (810) and a sliding portion (820). The sliding portion (820) is provided with a sliding hole (821) for the guide column (621) to pass through. The sliding portion (820) is slidably engaged with the guide column (621) through the sliding hole (821). The end of the spring (611) away from the abutting portion (6210) abuts against the sliding portion (820). A threaded hole (122) is provided on the plug-in portion (121), the threaded rod (810) is threadedly inserted into the threaded hole (122), and one end of the threaded rod (810) is rotatably connected to the sliding portion (820), and the length direction of the threaded rod (810) is parallel to the length direction of the guide column (621).

6. The welding auxiliary pre-tightening mechanism according to claim 5, characterized in that: The lower base (120) is provided with a limiting hole (123) for the threaded rod (810) to pass through, the length direction of the limiting hole (123) is perpendicular to the length direction of the threaded rod (810), and the width of the limiting hole (123) is adapted to the outer diameter of the threaded rod (810).

7. The welding auxiliary pre-tightening mechanism according to any one of claims 2 to 6, characterized in that: At least two groups of guide posts (621) are provided in parallel.

8. The welding auxiliary pre-tightening mechanism according to any one of claims 4 to 6, characterized in that: It also includes an anti-torque component (900), the anti-torque component (900) including an extension arm (910) and a rotation arm (920), the extension arm (910) being provided on the abutting portion (6210), and the length direction of the extension arm (910) being parallel to the length direction of the guide column (621); One end of the rotating arm (920) is rotatably connected to the extension arm (910), and the other end is rotatably connected to the upper base (110).

9. The welding auxiliary pre-tightening mechanism according to claim 8, characterized in that: A mounting platform (6220) is provided on the interference portion (6210), and an upper surface of the mounting platform (6220) forms a mounting position for placing the auxiliary component (700).

10. The welding auxiliary pre-tightening mechanism according to claim 9, characterized in that: At least two groups of the rotating arms (920) are provided in parallel between the extension arm (910) and the upper base (110); The interference portion (6210) is provided with an anti-torque groove (6211) for the mounting platform (6220) to be placed, and the anti-torque grooves (6211) on two adjacent interference portions (6210) act on the mounting platform (6220) at the same time, so that the mounting platform (6220) can resist the torque force generated by the lead-out roller (300) when it rotates.

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