A porous pipe integrated processing device, a porous pipe and a muffler thereof

Abstract

The utility model discloses a kind of porous pipe integrated processing device, porous pipe and its silencer, the device includes upper template and lower template, between it is sequentially continuously provided with punching mechanism, cutting mechanism and coiling forming mechanism, from plate to pipe integrated, continuous, automation production is realized;Cutting mechanism is integrated in punching and coiling station between;Coiling forming mechanism is core, it is coiled and pressed into shape by the synergistic effect of coiling upper die, movable plate, nitrogen spring and coiling mandrel, cut plate material;Pushing mechanism is driven by wedge, and finished product pipe is automatically ejected out.The utility model also protects the porous pipe made by the device, it is integrally-formed cylindrical structure, pipe wall is formed by plate coiling butt joint, joint is occluded or tightly overlapped, and uniform vent hole is distributed on pipe wall, and the silencer of application this pipe piece.The utility model greatly improves production efficiency and product precision, reduces defective rate and production cost.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle parts manufacturing technology, and in particular to an integrated processing device for processing multi-hole tailpipes for motorcycle mufflers, a multi-hole pipe made by the device, and a muffler using the multi-hole pipe. Background Technology

[0002] Currently, the industry commonly uses a process of laser-cutting the multi-hole tubing for motorcycle mufflers (such as catalytic rear cone sleeves) followed by manual rotation of the tubing for four punching operations. This traditional production method has significant drawbacks:

[0003] First, low production efficiency and numerous processes lead to long production cycles;

[0004] Secondly, multiple clamping and manual punching make it difficult to guarantee the accuracy of the punching position, especially to achieve the strict requirement of a 90° uniform gap, resulting in unstable product quality and a high defect rate.

[0005] Therefore, there is a need to provide an integrated processing device for porous pipe fittings, porous pipe fittings and their silencers, to solve the problems of low production efficiency and poor product precision in the existing technology. Utility Model Content

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0007] An integrated processing device for multi-hole pipe fittings includes an upper template and a lower template, characterized in that,

[0008] A punching station and a rolling forming station are sequentially provided between the upper and lower templates;

[0009] The punching station is equipped with a punching mechanism;

[0010] The rolling forming station is equipped with a rolling forming mechanism;

[0011] The rolling forming mechanism includes an upper rolling die, a rolling mandrel, a lower rolling die, and a movable plate;

[0012] The upper rolling die is connected to the upper template, and a cutting mechanism is provided between the upper rolling die and the punching mechanism;

[0013] The lower rolling die is connected to the lower template, and a baffle is provided on the side of the lower rolling die away from the punching mechanism;

[0014] The movable plate is connected to the lower template and can move up and down through a nitrogen spring and a first inner guide post assembly. A limiting mechanism is provided on the outside of the movable plate to limit the upward movement of the movable plate beyond its travel. A pressure plate connected to the upper template is provided above the movable plate.

[0015] A pushing mechanism is provided on the side of the movable plate away from the rolling forming mechanism;

[0016] The rolling mandrel is located between the upper rolling die and the lower rolling die, and is fixedly connected to the movable plate;

[0017] The punching mechanism is used to punch and shape the sheet metal.

[0018] The rolling forming mechanism is used to roll the punched sheet metal into a tube.

[0019] The pushing mechanism is used to push the formed pipe out of the rolling forming station.

[0020] Preferably, the punching mechanism includes an upper punching die connected to the upper template and a lower punching die connected to the lower template;

[0021] The upper punching die is provided with a punch for through holes in the forming plate;

[0022] The surface of the lower punching die is provided with a guide groove extending from the feeding end to the discharging end;

[0023] The lower punch die is provided with multiple pairs of guide rulers on both sides of the guide groove.

[0024] A material guiding channel is formed between the guide ruler and the material guiding groove.

[0025] Preferably, the cutting mechanism includes a lower die connected to the lower punching die of the punching mechanism, and an upper die connected to the upper rolling die.

[0026] Preferably, the limiting mechanism includes hanging plates disposed opposite to each other on both sides of the movable plate;

[0027] The lower end of the hanging plate is connected to the lower template, and the upper end is provided with a stop above the movable plate.

[0028] Preferably, the pushing mechanism includes a guide seat, a slider, a wedge, a connecting rod, a connecting base, an elastic element, and a push rod;

[0029] The guide seat is fixedly connected to the lower template, and a connecting seat for connecting to the lower template is provided on the side of the guide seat away from the movable plate;

[0030] The slider is slidably sleeved with the guide seat. A push rod is provided at one end of the slider near the movable plate, and a connecting rod is provided at the other end that is slidably sleeved with the connecting seat.

[0031] One end of the wedge is connected to the upper template, and the other end acts on the slider;

[0032] The connecting rod is fitted with an elastic element between the connecting seat and the slider;

[0033] The end of the push rod away from the movable plate passes through the clearance hole of the movable plate and extends to the rolling forming station.

[0034] Preferably, a plurality of outer guide post groups are also provided around the outer perimeter between the upper template and the lower template.

[0035] A porous pipe fitting, characterized in that it is manufactured from a sheet metal via an integrated porous pipe fitting processing device as described in any one of the above claims;

[0036] The porous pipe is an integrally formed cylindrical structure, the pipe wall of which is formed by rolling and joining a metal sheet, and the pipe wall has a number of circumferentially evenly distributed vent holes.

[0037] The joints of the mating surfaces interlock or overlap tightly.

[0038] A muffler includes a catalyst rear conical sleeve, characterized in that it further includes the aforementioned porous pipe fitting, wherein the porous pipe fitting is the tail pipe of the muffler;

[0039] The end of the catalyst conical sleeve furthest from the catalyst tube is connected to a porous pipe fitting.

[0040] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0041] 1. The original five separate processes are integrated into a single mold for continuous automated production, with a unified cycle time, reducing workpiece handling, clamping and changeover time, and greatly improving production efficiency.

[0042] 2. High-precision molds ensure the accuracy of punching positions and rolling, eliminating human error, resulting in excellent product consistency and greatly improving yield.

[0043] 3. It saves on the investment of multiple equipment and a large amount of manual operation, shortens the production cycle by 5%, and reduces material losses caused by scrap and rework.

[0044] 4. It achieves full automation from feeding, punching, cutting, forming to pushing, reducing reliance on operators and lowering labor intensity.

[0045] 5. A comprehensive patent protection network has been built, from specialized equipment to products and finally to applications, enhancing market competitiveness. Attached Figure Description

[0046] Figure 1 This is one of the structural schematic diagrams of the integrated processing device for multi-hole pipe fittings in this utility model;

[0047] Figure 2 This is the second schematic diagram of the integrated processing device for multi-hole pipe fittings in this utility model;

[0048] Figure 3 This is one of the cross-sectional structural schematic diagrams of the integrated processing device for multi-hole pipe fittings in this utility model;

[0049] Figure 4 This is the second cross-sectional structural schematic diagram of the integrated processing device for multi-hole pipe fittings in this utility model;

[0050] Figure 5 This is an exploded view of the integrated processing device for multi-hole pipe fittings in this utility model;

[0051] Figure 6 This is a schematic diagram of the perforated pipe fitting installed in the muffler in this utility model;

[0052] The components include: upper template 1, lower template 2, punching mechanism 3, rolling forming mechanism 4, cutting mechanism 5, baffle 6, nitrogen spring 7, first inner guide post group 8, limiting mechanism 9, pressure plate 10, pushing mechanism 11, outer guide post group 12, catalyst rear cone sleeve 13, upper punching die 31, lower punching die 32, punch 33, guide ruler 34, rolling upper die 41, rolling mandrel 42, rolling lower die 43, movable plate 44, lower die 51, upper die 52, hanging plate 91, guide seat 111, slider 112, wedge 113, connecting rod 114, connecting seat 115, elastic element 116, push rod 117, plate 100, multi-hole pipe fitting 200, guide groove 32a, and stop 91a. Detailed Implementation

[0053] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0054] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," "up," "down," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0056] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0057] like Figures 1-6 As shown, an integrated processing device for multi-hole pipe fittings includes an upper template 1 and a lower template 2, with a punching station and a rolling forming station arranged sequentially between the upper template 1 and the lower template 2.

[0058] The punching station is equipped with a punching mechanism 3;

[0059] The rolling forming station is equipped with a rolling forming mechanism 4;

[0060] The rolling forming mechanism 4 includes an upper rolling die 41, a rolling mandrel 42, a lower rolling die 43, and a movable plate 44;

[0061] The upper rolling die 41 is connected to the upper template 1, and a cutting mechanism 5 is provided between the upper rolling die 41 and the punching mechanism 3;

[0062] The lower rolling die 43 is connected to the lower template 2, and a baffle 6 is provided on the side of the lower rolling die 43 away from the punching mechanism 3;

[0063] The movable plate 44 is connected to the lower template 2 by means of a nitrogen spring 7 and a first inner guide post group 8. A limiting mechanism 9 is provided on the outer side of the movable plate 44 to limit the upward movement of the movable plate 44 beyond its travel. A pressure plate 10 connected to the upper template 1 is provided above the movable plate 44.

[0064] A pushing mechanism 11 is provided on the side of the movable plate 44 away from the rolling forming mechanism 4;

[0065] The rolling mandrel 42 is located between the upper rolling die 41 and the lower rolling die 43, and is fixedly connected to the movable plate 44;

[0066] The punching mechanism 3 is used to punch and form the sheet metal 100.

[0067] The rolling forming mechanism 4 is used to roll the punched sheet 100 into a tube.

[0068] The pushing mechanism 11 is used to push the formed pipe out of the rolling forming station.

[0069] Working principle: The external automatic feeding mechanism feeds the metal sheet 100 into the processing device in sequence according to the set rhythm; the external driver is started, causing the upper template 1 to drive all the upper mold parts to press down.

[0070] First, the sheet metal 100 enters the punching station, and the punching mechanism 3 punches out the required holes in the sheet metal 100.

[0071] Subsequently, the feeding mechanism pushes the punched sheet 100 step by step to the rolling forming station; the rolling forming mechanism 4 starts to operate: as the upper template 1 moves down, the cutter integrated on the rolling upper die 41 first cuts the sheet 100; then, the rolling upper die 41 and the rolling mandrel 42 work together to initially bend the cut sheet into an arch shape.

[0072] Subsequently, the upper mold plate 1 continues to press down, and the upper rolling mold 41 and the lower rolling mold 43 close together, finally pressing the arched plate into a circular tube. During this process, the nitrogen spring 7 provides the necessary pressure buffer and return force for the rolling mandrel 42 (that is, when the pressure plate 10 contacts the movable plate 44, the deformation resistance of the nitrogen spring 7 is greater than the downward pressure of the mold. Under the action of the lower rolling mold 43 and the rolling mandrel 42, the cut plate 100 is formed into an arch; then the movable plate 44 moves down together with the upper rolling mold 41 to process the arched plate 100 into a circle).

[0073] Finally, the upper template 1 rises back, the pushing mechanism 11 moves, and pushes the processed porous tube out of the rolled mandrel 42;

[0074] At the end of one processing cycle, the feeding mechanism continues to push the plate 100 into the punching mechanism 3, and the above process is repeated. The formed porous tube can be installed in the silencer through welding.

[0075] In the above structure, by adopting a continuous die structure design that integrates punching, cutting, rolling and pushing, the original five separate processes are integrated into continuous automated production within one die, reducing workpiece handling, clamping and changeover time and greatly improving production efficiency.

[0076] In this embodiment, the precision of punching position and rolling is ensured by the mold, eliminating human error, resulting in excellent product consistency and greatly improving the yield rate.

[0077] In this embodiment, the above structure saves on the investment of multiple equipment and a large amount of manual operation, shortens the production cycle by 5%, and reduces losses caused by scrap and rework.

[0078] In this embodiment, compared with the traditional pipe punching process, an innovative integrated process is adopted to directly roll the sheet metal into a circle after punching 100mm holes, which simplifies the production process.

[0079] Furthermore, such as Figures 1-5 As shown, in order to prevent the sheet metal 100 from shifting or deviating during the punching process and to improve the punching quality, the punching mechanism 3 includes an upper punching die 31 connected to the upper template 1 and a lower punching die 32 connected to the lower template 2.

[0080] The upper punching die 31 is provided with a punch 33 with a through hole in the forming plate 100;

[0081] The surface of the lower punching die 32 is provided with a guide groove 32a extending from the feeding end to the discharging end;

[0082] Multiple pairs of guide rulers 34 are arranged opposite each other on both sides of the guide groove 32a on the lower punching die 32.

[0083] A material guiding channel is formed between the guide ruler 34 and the material guiding groove 32a.

[0084] Furthermore, such as Figures 1-5 As shown, the cutting mechanism 5 includes a lower die 51 connected to the lower punching die 32 of the punching mechanism 3, and an upper die 52 connected to the upper rolling die 41.

[0085] In this embodiment, by integrating the lower die 51 into the lower punching die 32 and the upper die 52 into the upper punching die 31, the integrated design of the processing device is improved, and the cutting of the punched portion of the sheet metal 100 is achieved simultaneously with punching.

[0086] Furthermore, such as Figures 1-5 As shown, in order to ensure that the movable plate 44 moves up and down within its stroke range and improve reliability, the limiting mechanism 9 includes hanging plates 91 that are disposed opposite to each other on both sides of the movable plate 44.

[0087] The lower end of the hanging plate 91 is connected to the lower template 2, and the upper end is provided with a stop 91a located above the movable plate 44.

[0088] Furthermore, such as Figures 1-5 As shown, the pushing mechanism 11 includes a guide seat 111, a slider 112, a wedge 113, a connecting rod 114, a connecting seat 115, an elastic element 116, and a push rod 117;

[0089] The guide seat 111 is fixedly connected to the lower template 2, and a connecting seat 115 connected to the lower template 2 is provided on the side of the guide seat 111 away from the movable plate 44.

[0090] The slider 112 is slidably sleeved with the guide seat 111. A push rod 117 is provided at one end of the slider 112 near the movable plate 44, and a connecting rod 114 is provided at the other end that is slidably sleeved with the connecting seat 115.

[0091] One end of the wedge 113 is connected to the upper template 1, and the other end acts on the slider 112;

[0092] The connecting rod 114 is located between the connecting seat 115 and the slider 112 and is fitted with an elastic element 116.

[0093] The end of the push rod 117 away from the movable plate 44 passes through the clearance hole of the movable plate 44 and extends to the rolling forming station.

[0094] In this embodiment, during the downward movement of the upper template 1, the wedge 113 acts on the slider 112, causing the slider 112 to move the push rod 117 away from the rolling forming station. After reaching the position, the push rod 117 completely disengages from the rolling forming station. After processing is completed, during the upward movement of the upper template 1, the wedge 113 moves away from the slider 112. Under the action of the compressed elastic element 116, the slider 112 drives the push rod 117 to move closer to the rolling forming station. Thus, the forming plate 100 located on the rolling mandrel 42 is pushed out by the push rod 117, completing the unloading.

[0095] In the rising structure, the workpiece can be pushed and unloaded without additional power, simplifying the mold structure and improving the integrated processing performance.

[0096] In this embodiment, the elastic element 116 is a circular wire spring.

[0097] Furthermore, such as Figures 1-5 As shown, in order to improve the overall stability and reliability of the processing device, multiple outer guide post groups 12 are also provided around the outer perimeter between the upper template 1 and the lower template 2.

[0098] like Figure 6 As shown, a porous pipe fitting 200 is manufactured from a sheet metal 100 by the aforementioned integrated processing device for porous pipe fitting 200.

[0099] Furthermore, in order to improve the welding effect and efficiency at the joint, the porous pipe 200 is an integrally formed cylindrical structure, the pipe wall of which is formed by rolling and joining a metal plate 100, and the pipe wall has a number of circumferentially evenly distributed vent holes.

[0100] The joints of the mating surfaces interlock or overlap tightly.

[0101] In this embodiment, the "circumferential uniform distribution" of the holes is guaranteed by a high-precision mold, rather than by manual stamping, which directly solves the technical problem of "difficulty in guaranteeing a 90° uniformly distributed gap".

[0102] like Figure 6As shown, a muffler includes a catalyst rear cone sleeve 13 and the aforementioned porous pipe fitting 200, wherein the porous pipe fitting 200 is the tail pipe of the muffler.

[0103] The end of the catalyst conical sleeve 13 away from the catalyst tube is connected to the porous pipe fitting 200.

[0104] In this embodiment, by using the above-processed porous pipe 200 as the tail pipe of the muffler, the processing quality and efficiency of the tail pipe can be improved, and the processing cost of the muffler can be effectively reduced.

[0105] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.

Claims

1. An integrated processing device for multi-hole pipe fittings, comprising an upper template and a lower template, characterized in that... , A punching station and a rolling forming station are sequentially provided between the upper and lower templates; The punching station is equipped with a punching mechanism; The rolling forming station is equipped with a rolling forming mechanism; The rolling forming mechanism includes an upper rolling die, a rolling mandrel, a lower rolling die, and a movable plate; The upper rolling die is connected to the upper template, and a cutting mechanism is provided between the upper rolling die and the punching mechanism; The lower rolling die is connected to the lower template, and a baffle is provided on the side of the lower rolling die away from the punching mechanism; The movable plate is connected to the lower template and can move up and down through a nitrogen spring and a first inner guide post assembly. A limiting mechanism is provided on the outside of the movable plate to limit the upward movement of the movable plate beyond its travel. A pressure plate connected to the upper template is provided above the movable plate. A pushing mechanism is provided on the side of the movable plate away from the rolling forming mechanism; The rolling mandrel is located between the upper rolling die and the lower rolling die, and is fixedly connected to the movable plate; The punching mechanism is used to punch and shape the sheet metal. The rolling forming mechanism is used to roll the punched sheet metal into a tube. The pushing mechanism is used to push the formed pipe out of the rolling forming station.

2. The integrated processing device for multi-hole pipe fittings according to claim 1, characterized in that, The punching mechanism includes an upper punching die connected to the upper template and a lower punching die connected to the lower template; The upper punching die is provided with a punch for through holes in the forming plate; The surface of the lower punching die is provided with a guide groove extending from the feeding end to the discharging end; The lower punch die is provided with multiple pairs of guide rulers on both sides of the guide groove. A material guiding channel is formed between the guide ruler and the material guiding groove.

3. The integrated processing device for multi-hole pipe fittings according to claim 1, characterized in that, The cutting mechanism includes a lower die connected to the lower punching die of the punching mechanism, and an upper die connected to the upper rolling die.

4. The integrated processing device for multi-hole pipe fittings according to claim 1, characterized in that, The limiting mechanism includes hanging plates that are disposed opposite to each other on both sides of the movable plate; The lower end of the hanging plate is connected to the lower template, and the upper end is provided with a stop above the movable plate.

5. The integrated processing device for multi-hole pipe fittings according to claim 1, characterized in that, The pushing mechanism includes a guide seat, a slider, a wedge, a connecting rod, a connecting seat, an elastic element, and a push rod; The guide seat is fixedly connected to the lower template, and a connecting seat for connecting to the lower template is provided on the side of the guide seat away from the movable plate; The slider is slidably sleeved with the guide seat. A push rod is provided at one end of the slider near the movable plate, and a connecting rod is provided at the other end that is slidably sleeved with the connecting seat. One end of the wedge is connected to the upper template, and the other end acts on the slider; The connecting rod is fitted with an elastic element between the connecting seat and the slider; The end of the push rod away from the movable plate passes through the clearance hole of the movable plate and extends to the rolling forming station.

6. The integrated processing device for multi-hole pipe fittings according to claim 1, characterized in that, Multiple external guide post groups are also provided around the outer perimeter between the upper and lower templates.

7. A porous pipe fitting, characterized in that, It is obtained by processing sheet metal using the integrated processing apparatus for multi-hole pipe fittings as described in any one of claims 1 to 6; The porous pipe is an integrally formed cylindrical structure, the pipe wall of which is formed by rolling and joining a metal sheet, and the pipe wall has a number of circumferentially evenly distributed vent holes. The joints of the mating surfaces interlock or overlap tightly.

8. A silencer, comprising a catalyst rear conical sleeve, characterized in that, It also includes the porous pipe fitting as described in claim 7, wherein the porous pipe fitting is the tail pipe of the muffler; The end of the catalyst conical sleeve furthest from the catalyst tube is connected to a porous pipe fitting.

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