Lock stitch mechanism for processing automobile silencer shell

Abstract

The utility model discloses a lock stitch mechanism for processing an automobile muffler shell, which is characterized in that a sliding plate is in sliding connection with a guide rail on the lower surface of a rack through a sliding block, and the sliding plate is sequentially provided with a stitch closing module, a lock stitch module and a pushing module. The seam closing module or the seam locking module is installed below the first installation plate, the seam locking wheel is installed below the second installation plate, the flanging wheel and the pressing wheel are independently installed on the lower surface of the sliding plate through the first support and the second support, and when any one of the seam closing wheel or the seam locking wheel needs to be adjusted or replaced, the whole seam closing module or the whole seam locking module can be detached and replaced with a new seam closing module or new seam locking module for continuous machining. And meanwhile, an ejection block is arranged at the outer end of the second supporting seat through a third supporting seat, the automobile silencer shell can be separated from the mold through the ejection block when the lock stitch is completed, the sliding plate completely passes through the automobile silencer shell and the sliding plate is reset, and the convenience is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile muffler locking seam equipment, in particular to a locking seam mechanism for processing an automobile muffler shell. Background Art

[0002] A car muffler is a component used to reduce the noise generated by a motor vehicle's engine. Since the difference in length between the two pipes is equal to half the wavelength of the sound waves emitted by the car, the two sound waves interfere with each other when superimposed, canceling out the sound intensity and reducing the sound, thereby achieving a silencing effect.

[0003] The outer shell of an automobile muffler generally adopts a cylindrical structure with an elliptical cross-section. Currently, the automobile muffler shell needs to be seamed after bending and extrusion. In the current seaming mechanism, two rows of seaming wheels and a locking wheel are mounted on a fixed plate via positioning pins. If either the seaming wheel or the locking wheel is damaged, the wheel needs to be replaced before continuing processing, which affects the efficiency of the entire production line. In addition, after the mold is bent and extruded, the automobile muffler shell needs to be manually removed and moved to the seaming equipment, which is inconvenient. Therefore, an improved technology is urgently needed to solve this problem existing in the existing technology. Utility Model Content

[0004] The object of the present utility model is to provide a locking mechanism for processing automobile muffler shells, which adopts a modular structure for installation, wherein a closing wheel is installed under a first mounting plate, a locking wheel is installed under a second mounting plate, and a flanging wheel and a pressing wheel are also separately installed on the lower surface of a slide plate through a first support and a second support. When any closing wheel or locking wheel needs to be adjusted or replaced, the closing module or locking module can be completely removed and replaced with a new closing module or locking module to continue processing, without having to stop the machine for too long and wait, thereby saving the time required to replace the wheel; at the same time, a push-out block is provided at the outer end of the second support through a third support, and the push-out block is elastically supported by a support rod and a spring. When the locking is completed and the slide plate has completely passed through the automobile muffler shell, the slide plate can be reset to separate the automobile muffler shell from the mold through the push-out block, thereby greatly improving convenience, thereby solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a locking mechanism for processing an automobile muffler shell, comprising a frame, a slide plate, a seam closing module, a locking module and an edge pressing and pushing module;

[0006] Guide rails are provided on both sides of the lower surface of the frame, a reduction motor is provided on the side of one end of the frame through a bracket, pulleys are provided at both ends of the interior of the frame, the two pulleys are respectively connected to the two ends of the transmission belt, and the output shaft of the reduction motor is connected to one of the pulleys;

[0007] The slide is slidably connected to the guide rail via a slider, and the upper surface of the slide is also connected to the transmission belt via a connecting piece. The slide is sequentially provided with a seam closing module, a seam locking module and a push-out module;

[0008] The joint module includes a first mounting plate and joint wheels. Two rows of joint wheels are symmetrically distributed on both sides of the first mounting plate. The two rows of joint wheels are arranged in a "V" shape and correspond to each other. The first mounting plate is connected to the slide plate through a connecting frame and bolts.

[0009] The locking module includes a second mounting plate and locking wheels. The second mounting plate is provided with two rows of locking wheels. The two rows of locking wheels correspond to each other and cooperate with each other. The second mounting plate is connected to the slide plate by bolts.

[0010] The edge pressing and ejecting module includes a flanging wheel, a pressure wheel and a ejecting block, the flanging wheel is connected to the first support, the pressure wheel is connected to the second support, the first support and the second support are both connected to the slide, the second support is provided with a third support on the side away from the first support, the ejecting block is rotatably connected to the third support through a pin, the third support is provided with an L-shaped frame on the side away from the second support, the L-shaped frame is provided with a support rod, the support rod is provided with a head on the side close to the ejecting plate, the outside of the support rod is provided with a spring, the two ends of the spring are respectively supported on the head and the L-shaped frame, and the head is connected to the movable ejecting block.

[0011] Preferably, the utility model provides a locking mechanism for processing an automobile muffler shell, wherein the locking wheel is connected to the first mounting plate via a first positioning pin.

[0012] Preferably, the present invention provides a locking mechanism for processing an automobile muffler shell, wherein the locking wheel is connected to the second mounting plate via a second positioning pin.

[0013] Preferably, the utility model provides a locking mechanism for processing an automobile muffler shell, wherein the flanging wheel, the pressing wheel and the ejection block are located in the same plane.

[0014] Preferably, the utility model provides a locking mechanism for processing an automobile muffler shell, wherein the end of the slide away from the seam joining module is further provided with a limiting wheel via an extension frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) A modular structure is adopted for installation. The seam closing wheel is installed under the first mounting plate, the seam locking wheel is installed under the second mounting plate, and the flanging wheel and the pressure wheel are also separately installed on the lower surface of the slide plate through the first support and the second support. When any seam closing wheel or seam locking wheel needs to be adjusted or replaced, the seam closing module or seam locking module can be completely removed and replaced with a new seam closing module or seam locking module to continue processing. There is no need to stop the machine for a long time, thereby saving the time required to replace the wheel.

[0017] (2) A push-out block is provided at the outer end of the second support through the third support. The push-out block is elastically supported by a support rod and a spring. When the lock seam is completed and the slide plate completely passes through the automobile muffler shell, when the slide plate is reset, the automobile muffler shell can be separated from the mold through the push-out block, which greatly improves convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a side view structural diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0020] Figure 3 For attachment Figure 1 The enlarged structural diagram at the mark A in the middle;

[0021] Figure 4 For attachment Figure 2 The enlarged structural diagram at the mark B in the middle;

[0022] Figure 5 Schematic diagram of the joint module structure;

[0023] Figure 6 Schematic diagram of the cross-sectional structure of the joint module;

[0024] Figure 7 Schematic diagram of the lock seam module structure;

[0025] Figure 8 Schematic diagram of the cross-sectional structure of the lock seam module;

[0026] Figure 9 This is a side view structural diagram of the edge pressing and ejecting module;

[0027] Figure 10 This is a schematic diagram of the structure of the edge pressing and ejecting module from above.

[0028] In the figure: frame 1, guide rail 2, reduction motor 3, pulley 4, transmission belt 5, skateboard 6, first mounting plate 7, seam wheel 8, connecting frame 9, second mounting plate 10, locking wheel 11, flanging wheel 12, pressing wheel 13, ejecting block 14, first support 15, second support 16, third support 17, L-shaped frame 18, support rod 19, spring 20, head 21, first locating pin 22, second locating pin 23, extension frame 24, and limiting wheel 25. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0030] It should be noted that, in the description of the present invention, the terms "inside", "outside", "up", "down", "both sides", "one end", "the other end", "left", "right", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0031] See also Figure 1-10 The utility model provides a technical solution: a locking mechanism for processing an automobile muffler shell, comprising a frame 1, a slide 6, a seam closing module, a locking module and an edge pressing and pushing module;

[0032] Guide rails 2 are provided on both sides of the lower surface of the frame 1, a reduction motor 3 is provided on the side of one end of the frame 1 through a bracket, and pulleys 4 are provided at both ends of the interior of the frame 1. The two pulleys 4 are respectively connected to the two ends of the transmission belt 5, and the output shaft of the reduction motor 3 is connected to one of the pulleys 4;

[0033] The slide plate 6 is slidably connected to the guide rail 2 through a slider. The upper surface of the slide plate 6 is also connected to the transmission belt 5 through a connecting piece. The slide plate 6 is sequentially provided with a seam closing module, a seam locking module and a push-up module. The end of the slide plate 6 away from the seam closing module is also provided with a limit wheel 25 through an extension frame 24 to achieve the limit of the upper part of the automobile muffler.

[0034] The seam closing module includes a first mounting plate 7 and seam closing wheels 8. Two rows of seam closing wheels 8 are symmetrically distributed on both sides of the first mounting plate 7. The seam closing wheels 8 are connected to the first mounting plate 7 via first positioning pins 22 to enable installation and removal of the seam closing wheels 8. The two rows of seam closing wheels 8 are arranged in a "V" shape and correspond to each other one by one. The first mounting plate 7 is connected to the slide plate 6 via a connecting frame 9 and bolts.

[0035] The lock seam module includes a second mounting plate 10 and lock seam wheels 11. The second mounting plate 10 is provided with two rows of lock seam wheels 11. The lock seam wheels 11 are connected to the second mounting plate 10 via second positioning pins 23 to achieve installation and removal of the lock seam wheels 11. The two rows of lock seam wheels 11 correspond to each other and cooperate with each other. The second mounting plate 10 is connected to the slide plate 6 via bolts.

[0036] The edge pressing and ejecting module includes a flanging wheel 12, a pressing wheel 13 and an ejecting block 14. The flanging wheel 12 is connected to the first support 15, the pressing wheel 13 is connected to the second support 16, the first support 15 and the second support 16 are both connected to the slide 6, and the second support 16 is provided with a third support 17 on the side away from the first support 15. The ejecting block 14 is rotatably connected to the third support 17 through a pin shaft. The flanging wheel 12, the pressing wheel 13 and the ejecting block 14 are located in the same plane to ensure that the seams are closed and locked. The edge of the automobile muffler can smoothly pass through the flanging wheel 12, the pressing wheel 13 and the ejection block 14, thereby realizing flanging, pressing and final ejection. The third support 17 is provided with an L-shaped frame 18 on the side away from the second support 16. The L-shaped frame 18 is provided with a support rod 19. The support rod 19 is provided with a head 21 on the side close to the ejection plate. The outer sleeve of the support rod 19 is provided with a spring 20. The two ends of the spring 20 are respectively supported on the head 21 and the L-shaped frame 18, and the head 21 is connected to the movable ejection block 14.

[0037] Installation method and operating principle: First, assemble the seam closing module and the locking module. Install the seam closing wheel 8 on the lower surface of the first mounting plate 7 via the first positioning pin 22. The two rows of seam closing wheels 8 correspond to each other and are distributed in a "V" shape. Install the locking wheel 11 on the lower surface of the second mounting plate 10 via the second positioning pin 23. The two rows of locking wheels 11 correspond to each other and cooperate with each other. Then, connect the first mounting plate 7 to the slide plate 6 via connectors and bolts, connect the second mounting plate 10 to the slide plate 6 via bolts, connect the flanging wheel 12 to the slide plate 6 via the first support 15, connect the pressure wheel 13 to the slide plate 6 via the second support 16, connect the ejection block 14 to the outer side of the second support 16 via the third support 17, and then connect the limiting wheel 25 to the slide plate 6 via the extension frame 24. This completes the connection between the seam closing module, the locking module, and the edge pressing and ejection module and the slide plate 6. Finally, the slide plate 6 is connected to the guide rail 2 on the lower surface of the frame 1 through the slider, and the slide plate 6 is also connected to the transmission belt 5 inside the frame 1 through the connector to complete the installation. When in use, the forming mold of the automobile muffler shell is located at the lower left of the frame 1. The aluminum alloy plate is extruded and deformed by the mold to obtain the automobile muffler shell (unsealed). The reduction motor 3 drives the transmission belt 5 to rotate. The slide plate 6 moves toward one end of the automobile muffler shell through the transmission belt 5 and makes the two edges of the automobile muffler shell to be sealed enter between the two rows of seaming wheels 8. The two rows of seaming wheels 8 make the two edges of the automobile muffler shell seam together. Then the slide plate 6 continues to move forward, so that the two edges of the seam enter between the two rows of locking wheels 11. The two rows of locking wheels 11 lock the two edges, and then The slide plate 6 moves forward again, so that the two edges after the lock seam pass through the flanging wheel 12 and the pressing wheel 13 in turn to complete the flanging and pressing, and at this time the ejecting block 14 is lifted up. When the slide plate 6 moves to the leftmost end, the automobile muffler shell after the lock seam leaves the ejecting block 14 and is completely located on the right side of the ejecting block 14. At this time, the ejecting block 14 falls down through the thrust of the spring 20, and then the reduction motor 3 reverses and drives the slide plate 6 back to the right through the transmission belt 5. The ejecting block 14 rests against the upper left end of the automobile muffler shell and drives the automobile muffler shell to move out of the mold to the next process to complete the seam lock seam.The utility model has a reasonable structure and adopts a modular structure for installation. The seam joining wheel 8 is installed under the first mounting plate 7, the locking seam wheel 11 is installed under the second mounting plate 10, and the flanging wheel 12 and the pressing wheel 13 are also separately installed on the lower surface of the slide plate 6 through the first support 15 and the second support 16. When any seam joining wheel 8 or the locking seam wheel 11 needs to be adjusted or replaced, the seam joining module or the locking seam module can be completely removed and replaced with a new seam joining module or the locking seam module to continue processing without having to stop and wait for too long, thereby saving the time required to replace the wheel; at the same time, the outer end of the second support 16 is provided with a push-out block 14 through the third support 17, and the push-out block 14 is elastically supported by the support rod 19 and the spring 20. When the locking seam is completed and the slide plate 6 has completely passed the automobile muffler shell, when the slide plate 6 is reset to the right, the automobile muffler shell can be separated from the mold by the push-out block 14, which greatly improves convenience.

[0038] Anything not described in detail in the present invention is well known to those skilled in the art.

[0039] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A locking mechanism for processing automobile muffler shells, characterized by: It comprises a frame (1), a slide plate (6), a seam closing module, a seam locking module and an edge pressing and ejecting module; Guide rails (2) are provided on both sides of the lower surface of the frame (1); a reduction motor (3) is provided on the side surface of one end of the frame (1) through a bracket; pulleys (4) are provided at both ends of the interior of the frame (1); the two pulleys (4) are respectively connected to the two ends of the transmission belt (5); and the output shaft of the reduction motor (3) is connected to one of the pulleys (4); The slide plate (6) is slidably connected to the guide rail (2) via a slider, and the upper surface of the slide plate (6) is also connected to the transmission belt (5) via a connecting piece. The slide plate (6) is sequentially provided with a seam closing module, a seam locking module and a push-up module; The joint module comprises a first mounting plate (7) and joint wheels (8), two rows of joint wheels (8) are symmetrically distributed on both sides of the first mounting plate (7), the two rows of joint wheels (8) are arranged in a "V" shape, and the two rows of joint wheels (8) correspond to each other one by one, and the first mounting plate (7) is connected to the slide plate (6) via a connecting frame (9) and bolts; The locking module comprises a second mounting plate (10) and locking wheels (11); the second mounting plate (10) is provided with two rows of locking wheels (11); the two rows of locking wheels (11) correspond to each other and cooperate with each other; the second mounting plate (10) is connected to the slide plate (6) via bolts; The edge pressing and ejecting module includes a flanging wheel (12), a pressing wheel (13) and an ejecting block (14), wherein the flanging wheel (12) is connected to a first support (15), and the pressing wheel (13) is connected to a second support (16), and the first support (15) and the second support (16) are both connected to a slide plate (6), and a third support (17) is provided on the side of the second support (16) away from the first support (15), and the ejecting block (14) is connected to the third support (17) through a pin shaft. 17) is rotatably connected, the third support (17) is provided with an L-shaped frame (18) on the side away from the second support (16), the L-shaped frame (18) is provided with a support rod (19), the support rod (19) is provided with a head (21) on the side close to the push plate, the support rod (19) is provided with a spring (20) on the outside, the spring (20) is supported on the head (21) and the L-shaped frame (18) at both ends, and the head (21) is connected to the movable push block (14).

2. The locking mechanism for processing an automobile muffler shell according to claim 1, characterized in that: The joint wheel (8) is connected to the first mounting plate (7) via a first positioning pin (22).

3. The locking mechanism for processing an automobile muffler shell according to claim 1, characterized in that: The locking wheel (11) is connected to the second mounting plate (10) via a second positioning pin (23).

4. The locking mechanism for processing an automobile muffler shell according to claim 1, characterized in that: The flanging wheel (12), the pressing wheel (13) and the ejection block (14) are located on the same plane.

5. The locking mechanism for processing an automobile muffler shell according to claim 1, characterized in that: The slide plate (6) is also provided with a limiting wheel (25) at one end away from the joint module via an extension frame (24).

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