Hot rivet welding joint capable of being rapidly cooled

Abstract

The invention provides a hot rivet welding joint capable of rapidly cooling, and relates to the technical field of sound equipment mesh enclosure production, the hot rivet welding joint comprises a supporting table, a machining groove is formed in the middle of the upper surface of the supporting table, a fixing frame is installed at the upper end of the supporting table, and a welding mechanism is installed between the fixing frame and the supporting table; the lower end of the welding mechanism is connected with the machining groove in a clamped mode. A plastic rivet and a hot welding head are subjected to hot welding machining in the machining hole through the machining hole, so that after hot welding of the plastic rivet is completed, wind power can be blown into the machining hole through a hose groove and an air blowing groove, and the wind power can blow the hot welding head and the plastic rivet more quickly and stably for cooling; the situation of wiredrawing or glue overflowing when the hot welding head and the plastic rivet are separated is avoided, and the overall pressure welding effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of audio grille production, and in particular to a hot riveting welding joint capable of being cooled rapidly. Background Art

[0002] The speaker grille is a metal wire mesh fixed in front of the speaker. When producing the speaker grille, it is often necessary to perform heat welding on the plastic rivets on the grille through a hot riveting welding joint. However, when welding the plastic rivets on the grille through the hot riveting welding joint, due to the low cooling and solidification speed of the plastic rivets, the hot riveting welding joint often produces wire drawing and glue overflow when it is separated from the plastic rivet, making the hot welding effect of the speaker grille unable to meet the required requirements. Therefore, we propose a hot riveting welding joint that can be cooled quickly to solve the above problem. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a hot riveting welding joint that can be cooled quickly, which solves the problem that when the plastic rivets on the mesh cover are welded through the hot riveting welding joint, thread drawing and glue overflow often occur when the hot riveting welding joint is separated from the plastic rivets due to the low cooling and solidification speed of the plastic rivets, making the hot welding effect of the audio mesh cover unable to meet the required requirements.

[0004] To achieve the above object, the technical solution adopted by the present invention is: A hot riveting welding joint that can be cooled quickly comprises a support table, a processing groove is provided in the middle of the upper surface of the support table, a fixing frame is installed at the upper end of the support table, a welding mechanism is installed between the fixing frame and the support table, and the lower end of the welding mechanism is snap-connected with the processing groove, and the welding mechanism comprises a lower pressure frame, which is snap-connected inside the processing groove, and a plurality of processing holes are penetrated at the lower end of the inner part of the lower pressure frame, and the processing holes correspond one-to-one to the plastic rivets required for welding on the raw material, and a plurality of extension rods are installed inside the lower pressure frame, and hot welding heads are respectively installed at the lower ends of the extension rods, and the hot welding heads correspond one-to-one to the processing holes and overlap up and down, and a groove is provided at the lower end of the inner part of the lower pressure frame, and air blowing grooves are respectively penetrated between the groove and the processing hole.

[0005] Preferably, a sealing cover is installed at the upper end of the lower pressing frame, and bolts are respectively installed between the sealing cover and the lower pressing frame through threads.

[0006] Preferably, a connecting plate is movably installed between the lower pressing frame and the sealing cover, and a plurality of guide rods are installed at the lower end of the inner part of the lower pressing frame, and the rod bodies of the guide rods are movably installed in and penetrate the inner part of the connecting plate.

[0007] Preferably, the upper end of the guide rod is in contact with the sealing cover, and springs are respectively sleeved and installed on the outer side of the guide rod body located between the lower surface of the connecting plate and the lower pressure frame.

[0008] Preferably, a push rod is movably installed on the upper inner end of the sealing cover, and the lower end of the push rod is snap-connected with the connecting plate. A cylinder is installed on the upper surface of the fixing frame, and the output end of the cylinder movably passes through the interior of the fixing frame and is connected to the push rod.

[0009] Preferably, a plurality of through holes are penetrated inside the connecting plate, and the through holes are respectively parallel to and correspond to the processing holes one by one, and the upper ends of the extension rods are respectively snap-fitted and installed inside the processing holes.

[0010] Preferably, the upper ends of the extension rods are respectively installed with limit plates, the upper surfaces of the limit plates are respectively installed with threaded rods, and the upper ends of the threaded rods are respectively installed through the interiors of the through holes.

[0011] Preferably, the upper surface of the limit plate and the connecting plate are in contact with each other, and nuts are respectively installed on the upper ends of the rod bodies of the threaded rods through threads.

[0012] Preferably, placement grooves are respectively provided at the inner lower ends of the extension rods, heating rods are respectively installed inside the placement grooves, and the heating rods are connected to the hot welding heads.

[0013] Preferably, a fan is installed at one end of the upper surface of the fixing frame, and a hose is installed at the output end of the fan. The body of the hose is installed through the interior of the fixing frame, and the lower end of the hose is installed through the inner upper end of the groove. A plurality of exhaust holes are penetrated at the inner upper end of the sealing cover, and filters are respectively installed inside the exhaust holes.

[0014] 1. In the present invention, a processing hole is used to allow the plastic rivet and the hot welding head to be hot-welded inside the processing hole, so that after the hot welding of the plastic rivet is completed, wind can be blown to the inside of the processing hole through the hose groove and the blowing groove, so that the wind can blow the hot welding head and the plastic rivet more quickly and stably to cool them down, avoiding the situation of wire drawing or glue overflow when the hot welding head and the plastic rivet are separated, and improving the overall pressure welding effect.

[0015] 2. In the present invention, the cooperation between the spring and the guide rod can allow the cylinder to simultaneously control the lower pressure frame and the connecting plate to move up and down synchronously, so that the cylinder can first push the lower pressure frame to clamp and position the raw material, so that the plastic rivets on the raw material can be accurately inserted into the inside of the processing hole. Then, after the raw material is positioned, the cylinder can continue to push the connecting plate to move downward, allowing the connecting plate to drive the hot welding head to move downward, thereby ensuring stability and accuracy in the overall welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a front view structural schematic diagram of the present invention; Figure 3 It is a side structural schematic diagram of the present invention; Figure 4 yes Figure 2 A three-dimensional schematic diagram of the cross-sectional structure at AA in the middle; Figure 5 yes Figure 3 A three-dimensional schematic diagram of the cross-sectional structure at the middle BB; Figure 6 yes Figure 4 The enlarged three-dimensional structure diagram at C in the middle; Figure 7 yes Figure 5 Schematic diagram of the enlarged three-dimensional structure at point D in the middle.

[0017] In the figure: 1. support table; 2. processing groove; 3. fixing frame; 4. welding mechanism; 401. lower pressure frame; 402. sealing cover; 403. exhaust hole; 404. bolt; 405. connecting plate; 406. guide rod; 407. spring; 408. push rod; 409. cylinder; 410. processing hole; 411. through hole; 412. threaded rod; 413. nut; 414. limiting plate; 415. extension rod; 416. placement groove; 417. heating rod; 418. hot welding head; 419. groove; 420. blowing groove; 421. hose; 422. fan. DETAILED DESCRIPTION

[0018] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] like Figures 1 to 7As shown, a hot riveting welding joint that can be cooled quickly includes a support table 1, a processing groove 2 is provided in the middle of the upper surface of the support table 1, a fixing frame 3 is installed on the upper end of the support table 1, a welding mechanism 4 is installed between the fixing frame 3 and the support table 1, and the lower end of the welding mechanism 4 is snap-connected with the processing groove 2, and the welding mechanism 4 includes a lower pressing frame 401, the lower pressing frame 401 is snap-connected and installed inside the processing groove 2, a plurality of processing holes 410 are penetrated at the lower end of the inner part of the lower pressing frame 401, and the processing holes 410 correspond one-to-one to the plastic rivets required for welding on the raw material, a plurality of extension rods 415 are installed inside the lower pressing frame 401, and hot welding heads 418 are respectively installed at the lower ends of the extension rods 415, and the hot welding heads 418 correspond one-to-one to the processing holes 410 and overlap each other up and down, a groove 419 is provided at the lower end of the inner part of the lower pressing frame 401, and air blowing grooves 420 are respectively penetrated between the groove 419 and the processing hole 410.

[0020] like Figure 4 , Figure 5 and Figure 6 As shown, a sealing cover 402 is installed at the upper end of the lower pressure frame 401, and bolts 404 are respectively installed between the sealing cover 402 and the lower pressure frame 401 through threads, a connecting plate 405 is movably installed between the lower pressure frame 401 and the sealing cover 402, and a plurality of guide rods 406 are installed at the lower end of the lower pressure frame 401, and the rod bodies of the guide rods 406 are movably penetrated and installed in the interior of the connecting plate 405, and the upper ends of the guide rods 406 are fitted with the sealing cover 402, and springs 407 are respectively sleeved and installed on the outer sides of the rod bodies of the guide rods 406 located between the lower surface of the connecting plate 405 and the lower pressure frame 401, and a push rod 408 is movably penetrated and installed at the upper end of the inner upper end of the sealing cover 402, and the lower end of the push rod 408 is snap-connected with the connecting plate 405, and a cylinder 409 is installed on the upper surface of the fixing frame 3, and the output end of the cylinder 409 movably penetrates the interior of the fixing frame 3 and is connected with the push rod 408.

[0021] When the user needs to install it, the user first installs the extension rod 415 on the connecting plate 405, and then the user installs the connecting plate 405 through the guide rod 406, so that the connecting plate 405 and the spring 407 fit together, and then the user sets the sealing cover 402 on the outside of the rod body of the push rod 408, and then the user snaps the push rod 408 and the connecting plate 405 together, and then the user installs the sealing cover 402 through the bolt 404 to achieve the sealing work of the upper end of the lower pressure frame 401, improve the accuracy and stability of the overall operation process, and also facilitate the later user to disassemble and repair the whole, reduce the difficulty of maintenance for the user, and make it easier.

[0022] like Figure 7As shown, a plurality of through holes 411 are penetrated inside the connecting plate 405, and the through holes 411 are respectively parallel to and correspond to the processing holes 410 from top to bottom. The upper ends of the extension rods 415 are respectively snap-fitted and installed inside the processing holes 410, and the upper ends of the extension rods 415 are respectively installed with limiting plates 414, and the upper surfaces of the limiting plates 414 are respectively installed with threaded rods 412, and the upper ends of the threaded rods 412 are respectively penetrated and installed inside the through holes 411, and the upper surfaces of the limiting plates 414 and the connecting plate 405 are fitted together, and nuts 413 are respectively installed on the upper ends of the rod bodies of the threaded rods 412 through threads, and the lower ends of the extension rods 415 are respectively provided with placement grooves 416, and the insides of the placement grooves 416 are respectively installed with heating rods 417, and the heating rods 417 are connected to the hot welding heads 418.

[0023] The user first inserts the threaded rod 412 into the through hole 411, and then installs the threaded rod 412 and the extension rod 415 through the nut 413, thereby improving the stability of the extension rod 415 during the pressure welding process, and also facilitating the user to disassemble and repair the extension rod 415 later; The heating rod 417 is used to heat the heat welding head 418, so that the heat welding head 418 can realize the pressure welding of the plastic rivet through high temperature and extrusion, thereby improving the overall pressure welding efficiency.

[0024] like Figure 5 and Figure 7 As shown, a fan 422 is installed at one end of the upper surface of the fixing frame 3, and a hose 421 is installed at the output end of the fan 422. The tube body of the hose 421 is installed through the inside of the fixing frame 3, and the lower end of the hose 421 is installed through the inner upper end of the groove 419. A plurality of exhaust holes 403 are penetrated at the inner upper end of the sealing cover 402, and filters are respectively installed inside the exhaust holes 403.

[0025] After the plastic rivet is welded, the fan 422 blows air into the groove 419 along the hose 421, and then the air entering the groove 419 can be blown between the plastic rivet and the hot welding head 418 through the blowing slot 420 to dissipate heat, thereby improving the solidification efficiency of the plastic rivet, avoiding the situation of wire drawing and glue overflow when the hot welding head 418 is separated from the plastic rivet, and the air is synchronously flowed inside the processing hole 410 to improve the cooling efficiency of the plastic rivet and the hot welding head 418, thereby speeding up the overall production speed; The exhaust hole 403 is used to guide and discharge the air entering the lower pressure frame 401 , maintain the overall air circulation, and discharge the high-temperature air inside the lower pressure frame 401 .

[0026] The working principle of a fast cooling hot riveting welding joint: When in use, the user first puts the raw material into the processing groove 2, and then the user starts the cylinder 409 and the heating rod 417, so that the cylinder 409 pushes the connecting plate 405 and the lower pressing frame 401 to move downward, and the heating rod 417 heats the hot welding head 418 at the same time. Then, when the connecting plate 405 drives the lower pressing frame 401 and the raw material to connect, the plastic rivets on the raw material enter the processing holes 410 respectively, and then as the cylinder 409 continues to push the connecting plate 405 to move downward through the push rod 408, the connecting plate 405 squeezes the spring 407, and at the same time, the connecting plate 405 drives the extension rod 415 and the hot welding head 418 to move downward. The hot welding head 418 enters the interior of the processing hole 410, and the plastic rivet is pressure-welded by high temperature and pressure. After the plastic rivet is pressure-welded and formed, the fan 422 blows air into the interior of the groove 419 along the hose 421. The air entering the interior of the groove 419 can be blown and dissipated between the plastic rivet and the hot welding head 418 through the blowing groove 420 to improve the solidification efficiency of the plastic rivet. Finally, after the plastic rivet is cooled and solidified, the cylinder 409 can drive the push rod 408 to move upward, so that the push rod 408 drives the hot welding head 418 and the lower pressure frame 401 to reset through the connecting plate 405, waiting for the welding of the next batch of raw materials.

[0027] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A fast cooling heat riveting welding joint, comprising a support table (1), characterized in that: A processing groove (2) is provided in the middle of the upper surface of the support platform (1); a fixing frame (3) is installed at the upper end of the support platform (1); a welding mechanism (4) is installed between the fixing frame (3) and the support platform (1); and the lower end of the welding mechanism (4) is snap-connected with the processing groove (2); the welding mechanism (4) comprises a lower pressing frame (401); the lower pressing frame (401) is snap-connected inside the processing groove (2); and a plurality of processing holes (410) are penetrated at the lower end of the lower pressing frame (401). The processing holes (410) correspond one-to-one to the plastic rivets required for welding on the raw material. A plurality of extension rods (415) are installed inside the lower pressing frame (401). The lower ends of the extension rods (415) are respectively installed with heat welding heads (418). The heat welding heads (418) correspond one-to-one to the processing holes (410) and overlap each other up and down. A groove (419) is provided at the lower end of the inner part of the lower pressing frame (401), and a blowing groove (420) is respectively provided between the groove (419) and the processing hole (410).

2. A fast cooling heat riveting welding joint according to claim 1, characterized in that: A sealing cover (402) is installed at the upper end of the lower pressing frame (401), and bolts (404) are respectively installed between the sealing cover (402) and the lower pressing frame (401) through threads.

3. The fast cooling heat riveting welding joint according to claim 1, characterized in that: A connecting plate (405) is movably installed between the lower pressing frame (401) and the sealing cover (402), and a plurality of guide rods (406) are installed at the lower end of the inner part of the lower pressing frame (401). The rod bodies of the guide rods (406) are movably installed to penetrate the inner part of the connecting plate (405).

4. The fast cooling heat riveting welding joint according to claim 3, characterized in that: The upper end of the guide rod (406) is fitted with the sealing cover (402), and springs (407) are respectively sleeved and installed on the outer side of the rod body of the guide rod (406) located between the lower surface of the connecting plate (405) and the lower pressing frame (401).

5. The fast cooling heat riveting welding joint according to claim 4, characterized in that: A push rod (408) is movably installed on the upper end of the interior of the sealing cover (402), and the lower end of the push rod (408) is snap-fitted and connected to the connecting plate (405). A cylinder (409) is installed on the upper surface of the fixing frame (3), and the output end of the cylinder (409) movably penetrates the interior of the fixing frame (3) and is connected to the push rod (408).

6. The fast cooling heat riveting welding joint according to claim 3, characterized in that: A plurality of through holes (411) are provided inside the connection plate (405), and the through holes (411) are respectively parallel to and one-to-one correspond to the processing holes (410), and the upper ends of the extension rods (415) are respectively snap-fitted and installed inside the processing holes (410).

7. The fast cooling heat riveting welding joint according to claim 6, characterized in that: The upper ends of the extension rods (415) are respectively mounted with limit plates (414), the upper surfaces of the limit plates (414) are respectively mounted with threaded rods (412), and the upper ends of the threaded rods (412) are respectively mounted through the interior of the through holes (411).

8. The fast cooling heat riveting welding joint according to claim 7, characterized in that: The upper surface of the limiting plate (414) is in contact with the connecting plate (405), and nuts (413) are respectively installed on the upper ends of the rod bodies of the threaded rods (412) through threads.

9. The fast cooling heat riveting welding joint according to claim 1, characterized in that: The lower ends of the extension rods (415) are respectively provided with placement grooves (416), and heating rods (417) are respectively installed inside the placement grooves (416), and the heating rods (417) are connected to the hot welding heads (418).

10. The fast cooling heat riveting welding joint according to claim 2, characterized in that: A fan (422) is installed at one end of the upper surface of the fixing frame (3), and a hose (421) is installed at the output end of the fan (422). The hose (421) is installed through the inside of the fixing frame (3), and the lower end of the hose (421) is installed through the inner upper end of the groove (419). A plurality of exhaust holes (403) are installed through the inner upper end of the sealing cover (402), and filter screens are installed inside the exhaust holes (403).

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