Multi-tube type umbrella tube assembly line

By designing a multi-tube umbrella pipe assembly line, the machine base, position adjustment, punching integral, set and stamping lock mechanism are used to achieve automatic assembly of the umbrella pipe, solving the low efficiency of manual assembly and difficult to guarantee quality. The problem has improved assembly efficiency and accuracy.

CN119238107AInactive Publication Date: 2025-01-03HANGZHOU JUNPENG AUTOMATION EQUIP CO LTD
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Patent Information

Application Number
CN202411516602.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-29
Publication Date
2025-01-03
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The assembly of existing umbrella pipes mainly relies on manual operation, which has low efficiency, high working intensity, high cost and difficult to guarantee.

Method used

A multi-tube umbrella pipe assembly line is designed, including a machine base, position adjustment mechanism, punching integral mechanism, set mechanism, stamping locking mechanism and conveying mechanism. Through the cooperation of these mechanisms, the automatic assembly of the umbrella pipe is achieved to improve the Assembly efficiency and accuracy.

Benefits of technology

The automated assembly line mode of umbrella pipe assembly has been realized, which greatly improves processing efficiency, reduces the labor intensity of staff, and improves assembly quality and accuracy.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The invention discloses a multi-tube type umbrella tube assembly line which comprises a machine base, a position adjusting mechanism, a punching and shaping mechanism, a sleeving mechanism, a stamping and locking mechanism and a conveying mechanism. Through cooperative work of the feeding mechanism, the position adjusting mechanism, the elastic piece mounting mechanism, the punching and shaping mechanism, the sleeving mechanism, the stamping and locking mechanism, the discharging mechanism and the conveying mechanism, the working processes of mounting of umbrella tubes and elastic pieces, sleeving of the umbrella tubes and stamping and locking of the surfaces of the umbrella tubes can be completed; by means of the procedures, an automatic assembly line type working mode can be formed during umbrella tube installation, and the umbrella tube assembling and machining efficiency is greatly improved.
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Description

Technical Field

[0001] The invention belongs to the technical field of umbrella tube assembly, and in particular relates to a multi-tube umbrella tube assembly line. Background Art

[0002] At present, the domestic parachute assembly is still in the state of manual assembly, usually by the enterprise itself or by outsourcing. The parachute is usually composed of three or more sections (inner tube, middle tube and outer tube). The parachute assembly includes several processes, such as the spring piece pressing process, the inner tube to the middle tube process, the middle tube to the outer tube process, the spring piece pressing process, the locking process, etc. The manual assembly of the parachute is not only inefficient, labor intensive, and labor-intensive, but also difficult to guarantee the quality of the parachute assembly. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a multi-tube umbrella tube assembly line, which can automatically assemble the umbrella tubes through the cooperation of various mechanisms, greatly improving the working efficiency of umbrella tube processing and reducing the labor intensity of staff.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-tube umbrella tube assembly line, including a machine base, a positioning mechanism, a punching and shaping mechanism, a sheathing mechanism, a stamping and locking mechanism and a transmission mechanism, the positioning mechanism includes a motor 2 and a slip ring, the left side of the motor 2 is equipped with a support plate by bolts, the motor shaft of the motor 2 passes through the support plate and rotates together, a pneumatic clamper 1 is fixedly installed on the outer end of the motor shaft of the motor 2, a rotary joint is installed on the right side of the motor 2, cylindrical through grooves communicating with the outside are provided at both ends of the motor shaft of the motor 2, one end of the motor shaft is connected to the rotary joint, and the other end is connected to the air inlet position of the pneumatic clamper 1, the sheathing mechanism includes an electric slide and a telescopic cylinder 7, a connecting block 1 is fixedly provided on the slider of the electric slide, and the connecting block A push rod is fixedly arranged on the outer side surface of one, a support plate 2 is fixedly arranged on the upper end of the piston rod of the telescopic cylinder seven, four pneumatic clamps four are fixedly arranged on the surface of the support plate two, clamping blocks three are symmetrically fixedly arranged on the sliding piston rods of the pneumatic clamps four on the far left and the far right, and clamping blocks four are symmetrically fixedly arranged on the sliding piston rods of the two middle pneumatic clamps four, the conveying mechanism includes a conveyor belt two, a plurality of neatly arranged U-shaped mounting blocks are fixedly installed on the surface of the conveyor belt two, a clamping block 1 and a clamping block 2 are arranged in the mounting block, the clamping block 2 is fixed to the mounting block by bolts, the clamping block 1 slides in the mounting block, and cylindrical grooves are symmetrically opened on the outer side surface of the clamping block one, a spring is fixedly arranged in the cylindrical groove, and the other end of the spring is fixed to the inner wall of the mounting block.

[0005] Optionally, the motor 2 is connected to the base via an L-shaped plate, the inner ring of the slip ring is fixedly mounted on the surface of the motor shaft, and the outer ring is fixed on the support plate, and an electromagnetic valve is fixedly mounted on the outer side of the pneumatic clamp 1, and the electromagnetic valve is connected to the slip ring via a wire.

[0006] Optionally, the positioning mechanism also includes a fixing plate 1 fixed to the surface of the machine base, a telescopic cylinder 4 is fixedly provided on the outer side surface of the fixing plate 1, a mounting plate is fixedly provided on the outer end surface of the piston rod of the telescopic cylinder 4, a connecting block 2 is fixedly installed on the upper end of the mounting plate by bolts, a sensor 1 is fixedly installed on the surface of the connecting block 2, and a sensor 2 is fixedly installed on the outer side surface of the mounting plate.

[0007] Optionally, the punching and shaping mechanism includes a support plate 1 fixed on the machine base, a punching cylinder is fixedly provided on the outer side surface of the support plate 1, the piston rod of the punching cylinder passes through the surface of the support plate 1, and a punching rod is provided at the outer end thereof, and the punching rod is fixedly matched with the piston rod of the punching cylinder by bolts.

[0008] Optionally, a straight plate is fixedly provided on the outer side surface of the support plate, and a mold plate is fixedly installed on the outer side surface of the straight plate by bolts. A punching groove is opened on the surface of the mold plate, and the size of the punching groove corresponds to the size of the punching rod.

[0009] Optionally, the stamping locking mechanism includes a U-shaped mounting frame 1 fixed above the machine base, a sliding cylinder is fixedly provided on the lower surface of the mounting frame 1, a mounting frame 2 is fixedly connected to the piston rod of the sliding cylinder, a stamping cylinder is fixedly provided inside the mounting frame 2, and a stamping rod 2 is fixedly provided on the lower end of the piston rod of the stamping cylinder.

[0010] Optionally, a rotating cylinder 2 is fixedly provided on the inner side surface of the mounting frame 1, a pneumatic clamp 5 is fixedly provided on the outer end of the rotating piston rod of the rotating cylinder 2, and clamping blocks 5 are fixedly provided on both sliding piston rods of the pneumatic clamp 5.

[0011] Optionally, a second sensor is fixedly provided on the outer side surface below the second mounting frame, a first stamping rod is fixedly provided on the inner side surface below the second mounting frame, the sensing probe of the second sensor is located on one side of the stamping rod, and a locking groove is provided on the upper surface of the first stamping rod.

[0012] Optionally, a support plate three is fixedly installed at a position corresponding to the mounting frame two on the surface of the machine base, a fixing plate four is fixedly provided on the outer side surface of the support plate three, the sensing probe of the sensor two and the punching rod one can both penetrate the side surface of the fixing plate four without interfering with each other, and a telescopic cylinder eight is fixedly provided on the outer side surface of the fixing plate four.

[0013] Optionally, the discharging mechanism includes a conveyor belt 1, and a plurality of magnetic blocks are fixedly arranged on the surface of the conveyor belt 1.

[0014] In summary, compared with the prior art, the multi-tube umbrella tube assembly line provided by the present invention has the following beneficial effects:

[0015] 1. In the present invention, the installation of the umbrella tube and the elastic sheet, the punching and shaping of the umbrella tube, the fitting of the umbrella tube and the punching and locking of the umbrella tube surface can be completed through the cooperation of the feeding mechanism, the positioning mechanism, the spring piece installation mechanism, the punching and shaping mechanism, the sleeve mechanism, the stamping and locking mechanism, the discharging mechanism and the conveying mechanism. The above-mentioned processes can form an automated assembly line working mode for the installation of the umbrella tube, thereby greatly improving the efficiency of the umbrella tube processing;

[0016] 2. In the present invention, the number of machine bases can be increased or decreased according to the number of tube sections of the umbrella tube in the required umbrella pole, so that umbrella poles of different lengths can be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0018] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0019] Figure 3 The structure diagram of the feeding mechanism of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 4 The structure diagram of the feeding mechanism of the present invention is shown in FIG. Figure 2 ;

[0021] Figure 5 The structure diagram of the positioning mechanism of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 6 The structure diagram of the positioning mechanism of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 7 It is a partial structural schematic diagram of the present invention;

[0024] Figure 8 It is a partial structural schematic diagram of the transmission mechanism of the present invention;

[0025] Fig. 9 It is a structural schematic diagram of the set mechanism and the punching and shaping mechanism of the present invention;

[0026] Fig.10 It is a structural schematic diagram of the punch lock mechanism of the present invention;

[0027] Fig.11 The structure diagram of the spring installation mechanism of the present invention is shown in FIG. Figure 1 ;

[0028] Fig.12 The structure diagram of the spring installation mechanism of the present invention is shown in FIG. Figure 2 ;

[0029] Fig.13 It is a structural schematic diagram of the down jumper of the present invention; DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] refer to Figure 1 and Figure 2 A multi-tube umbrella tube assembly line includes a plurality of machine bases 8. The number of machine bases 8 can be determined according to the number of umbrella tubes 81 actually required. Usually, four machine bases 8 can form a daily umbrella tube 81 processing line. Through the processing mechanisms on the surfaces of the four machine bases 8, umbrella poles with five sections of umbrella tubes 81 can be produced.

[0032] refer to Figure 1 and Figure 2 Two feeding mechanisms 1, two adjusting mechanisms 2, a spring installation mechanism 3, two punching and shaping mechanisms 4, a set mechanism 5, a stamping and locking mechanism 6 and a discharging mechanism 7 are arranged above the machine base 8. The two feeding mechanisms 1 are respectively used to process umbrella tubes 81 of different diameters. Two conveying mechanisms 9 are symmetrically arranged on the upper surface of the mechanism, and the two conveying mechanisms 9 correspond to the two feeding mechanisms 1 respectively.

[0033] Furthermore, the feeding mechanism 1 close to the spring piece installation mechanism 3 can be used to place a single umbrella tube 81, or an umbrella tube group after a plurality of umbrella tubes 81 are assembled, and the feeding mechanism 1 far away from the spring piece installation mechanism 3 can only be used to place a single umbrella tube 81, and the diameter of the umbrella tube 81 will be larger than the umbrella tube 81 in the feeding mechanism 1 on the other side. The two punching and shaping mechanisms 4 are located on the right side of the feeding mechanism 1, and are used to punch and shape the two ends of the single umbrella tube 81 transported from the feeding mechanism 1 on this side, so as to eliminate the two ends of the umbrella tube 81. The burrs on the ends of the umbrella tubes 81 are removed to facilitate assembly with other umbrella tubes 81. Then, the umbrella tube 81 after the burrs are removed is assembled with the umbrella tube group or the single umbrella tube 81 on the other side through the assembly mechanism 5. After the assembly is completed, the assembled umbrella tubes 81 are transported to the stamping lock mechanism 6 through the conveying mechanism 9. The stamping lock mechanism 6 is used to stamp the umbrella tube 81 with the largest diameter, so that stamping dents appear on the surface of the umbrella tube 81, which can effectively prevent the umbrella tube 81 with a smaller diameter inside the umbrella tube 81 from slipping out.

[0034] refer to Figure 3 and Figure 4 The feeding mechanism 1 includes a placing frame 11, which is fixed to the machine base 8 by bolts through two T-shaped mounting seats at the bottom. A bottom plate 13 and a bottom plate 12 are fixedly arranged at the lower end of the placing frame 11. The bottom plate 13 and the bottom plate 12 are both inclined, and the length of the bottom plate 13 is greater than the length of the bottom plate 12. The lower end of the bottom plate 12 is located above the surface of the bottom plate 13, and the distance between the two is slightly greater than the diameter of a single umbrella tube 81, so that the single umbrella tube 81 can roll down along the bottom plate 13.

[0035] refer to Figure 3 and Figure 4 A support frame 14 is provided above the bottom plate 13 on the right side of the bottom plate 12. The support frame 14 is fixedly installed on the inner wall of the placement frame 11 by bolts and is parallel to the bottom plate 12. Three groups of telescopic cylinders 2 15 are fixedly installed on the surface of the support frame 14 by bolts. The three groups can be divided into a first group of telescopic cylinders 2, a second group of telescopic cylinders 2 and a third group of telescopic cylinders 2 from top to bottom. The piston rods of the telescopic cylinders 2 15 penetrate the support frame 14 and are slidably matched. The umbrella tube 81 is blocked by the telescopic movement of the piston rod of each group of telescopic cylinders 2 15, so that the umbrella tube 81 can be unloaded intermittently.

[0036] refer to Figure 3 and Figure 4A motor 111 is fixedly installed on the outer side surface of the placement frame 11, and a rotating shaft 1111 is rotatably arranged on the inner wall of the placement frame 11. The rotating shaft 1111 is located below the bottom plate 13. The output shaft of the motor 111 passes through the side surface of the placement frame 11 and is fixed to the rotating shaft 1111. A fixed block 1112 is symmetrically fixed on the surface of the rotating shaft 1111. A rubber shift block 1113 is fixedly installed on the outer side surface of the fixed block 1112 by bolts. Through grooves are symmetrically provided on the surface of the bottom plate 13, so that the shift block 1113 can rotate in the through grooves.

[0037] Furthermore, the motor 111 drives the rotating shaft 1111 to rotate, which drives the fixed block 1112 to rotate, and then drives the rubber shifting block 1113 to rotate, so as to shift the multiple umbrella tubes 81 stacked on the surface of the bottom plate 13, so that the umbrella tubes 81 can roll down one by one along the surface of the bottom plate 13, avoiding the umbrella tubes 81 from being blocked in the gap between the bottom plate 13 and the bottom plate 2 12, thereby affecting the loading of the umbrella tubes 81.

[0038] refer to Figure 2 , Figure 3 and Figure 4 A visual sensor 113 is installed on the outer side of the placement frame 11 through an L-shaped plate. A through hole 114 is opened at a position on the outer side of the placement frame 11 corresponding to the detection end of the visual sensor 113. The position of the through hole 114 corresponds to the gap position between the second and third groups of telescopic cylinders 15 from top to bottom. When the umbrella tube 81 rolls to the position of the through hole 114, the second and third groups of telescopic cylinders 15 limit the umbrella tube 81 through the piston rod, and then the visual sensor 113 is used to perform image detection on the surface of one end of the umbrella tube 81 to detect whether the surface of this end of the umbrella tube 81 has an umbrella hole for installing the spring piece 311.

[0039] Furthermore, when the umbrella tube 81 rolls down to the position of the first group of telescopic cylinders 15, the first group of telescopic cylinders 15 drives the piston rod to retract, so that this umbrella tube 81 passes through the piston rod of the first group of telescopic cylinders 15, and then the first group of telescopic cylinders 15 immediately drives the piston rod to descend to block the subsequent umbrella tubes 81, and this umbrella tube 81 rolls down between the first and second groups of telescopic cylinders 15, and then the second group of telescopic cylinders 15 drives the piston rod to retract, so that this umbrella tube 81 passes through the piston rod of the second group of telescopic cylinders 15 and enters between the second and third groups of telescopic cylinders 15. After entering this position, the visual sensor 113 can detect the umbrella tube 81.

[0040] refer to Figure 3 and Figure 4A rotating device 115 is fixedly provided on the outer side surface of the placement frame 11 near the visual sensor 113. The rotating device 115 can be a motor or a rotating cylinder. A rotating shaft 116 is fixedly provided on the outer end of the output shaft of the rotating device 115. The rotating shaft 116 is rotationally matched with the placement frame 11. A baffle 16 is fixedly provided on the outer side surface of the placement frame 11 near the rotating shaft 116.

[0041] refer to Figure 3 and Figure 4 A sorting plate 117 is symmetrically fixed on the surface of the rotating shaft 116, and a guide plate 118 and a guide plate 2 161 are symmetrically arranged on both sides of the sorting plate 117. The guide plate 118 is fixed on the inner wall of the placement frame 11 on the left side of the sorting plate 117. The guide plate 118 is fixed on the inner wall of the placement frame 11 on the left side of the sorting plate 117 by bolts and is inclined. The upper end of the guide plate 2 161 is inclined and parallel to the bottom plate 13, and the lower end plate surface is parallel to the baffle 16, and the distance between the guide plate 11 and the baffle 16 is slightly larger than the diameter of a single umbrella tube 81, so that the umbrella tubes 81 can be neatly stacked together in this gap.

[0042] Furthermore, after the visual sensor 113 completes the detection of the umbrella tube 81, if it is detected that the end surface of the umbrella tube 81 has an umbrella hole, the sorting plate 117 will remain parallel to the bottom plate 13, and then the third group of telescopic cylinders 15 will drive the piston rod to retract, so that the umbrella tube 81 that has passed the detection will roll along the sorting plate 117 onto the guide plate 161, and then enter the gap between the guide plate 161 and the baffle 16 for the next step of processing. If the end surface of the umbrella tube 81 is not detected, the sorting plate 117 will remain parallel to the bottom plate 13, and then the third group of telescopic cylinders 15 will drive the piston rod to retract, so that the umbrella tube 81 that has passed the detection will roll along the sorting plate 117 onto the guide plate 161, and then enter the gap between the guide plate 161 and the baffle 16 for the next step of processing. There is an umbrella hole on the surface of one end, and the visual sensor 113 will give a signal to the rotating device 115 to drive the rotating shaft 116 to rotate, so that the sorting plate 117 is parallel to the guide plate 118, and then the third group of telescopic cylinders 15 drive the piston rod to retract, so that the umbrella tube 81 passes through the sorting plate 117 and enters the surface of the guide plate 118 and then slides down. A collection frame can be placed at the lower end of the guide plate 118 to collect the fallen umbrella tube 81, and the subsequent movement process of the umbrella tube 81 is the same as the above process.

[0043] refer to Figure 3 and Figure 4 A connecting plate 119 is fixedly provided on the lower inner wall of the placement frame 11 by bolts, a telescopic cylinder 19 is fixedly installed on the lower end surface of the connecting plate 119, and a material guide frame 191 is fixedly provided on the outer end of the piston rod of the telescopic cylinder 19, and the size of the cavity in the material guide frame 191 is consistent with the size of the umbrella tube 81.

[0044] refer to Figure 3 and Figure 4A U-shaped baffle frame 18 is fixedly provided at the lower end of the placement frame 11. The U-shaped baffle frame 18 supports the lowest umbrella tube 81 located between the guide plate 161 and the baffle plate 16, so that the lowest umbrella tube 81 will no longer fall after entering the guide frame 191, and then the guide frame 191 can be telescopically driven by the telescopic cylinder 19, so that the umbrella tube 81 in the guide frame 191 can be pushed.

[0045] refer to Figure 3 and Figure 4 A telescopic cylinder 17 is fixedly provided on the outer side surface of the baffle 16 by bolts, and a pushing frame 171 is fixedly provided on the outer end surface of the piston rod of the telescopic cylinder 17. The pushing frame 171 can push the umbrella tube 81 in the guide frame 191 onto the conveying mechanism 9.

[0046] refer to Figure 6 , Figure 7 and Figure 8 The conveying mechanism 9 includes a conveyor belt 91, and a plurality of neatly arranged U-shaped mounting blocks 92 are fixedly installed on the surface of the conveyor belt 91. A clamping block 921 and a clamping block 922 are arranged in the mounting block 92. The clamping block 922 is fixed to the mounting block 92 by bolts. The clamping block 921 slides in the mounting block 92. The outer side surface of the clamping block 921 is symmetrically provided with cylindrical grooves 923. A spring 924 is fixedly arranged in the cylindrical groove 923. The other end of the spring 924 is fixed to the inner wall of the mounting block 92. When the clamping block 921 and the clamping block 922 are combined by the elastic force of the spring 924, the umbrella tube 81 can be clamped, and this clamping will not hinder the rotation and adjustment of the umbrella tube 81.

[0047] refer to Figure 7 and Figure 8 Three groups of bearing supports 93 are symmetrically installed on the machine base 8, and a rotating shaft 3 94 is rotatably arranged between every two bearing supports 93. Among the three rotating shafts 3 94, two have the same length, and the other is longer, and a motor 3 95 is fixedly arranged on the outer side of a corresponding bearing seat, and the output shaft of the motor 3 95 is fixed to one end of the rotating shaft 3 94, wherein two rotating shafts 3 94 with the same length are fixedly installed with multi-toothed rotating wheels 96 on the surface, and two toothed rotating wheels 96 are symmetrically fixedly arranged on the surface of another rotating shaft 3 94, and the four rotating wheels 96 are divided into two groups, which are respectively matched with the two conveyor belts 2 91, and the two conveyor belts 2 91 are made to move synchronously through the motor 3 95, wherein the conveyor belt 2 91 can be a synchronous belt in the prior art, and the rotating wheel 96 can be a synchronous wheel in the prior art, and the rotation of the synchronous wheel can stably drive the synchronous belt to move synchronously.

[0048] Furthermore, the two conveyor belts 91 have different lengths. The shorter conveyor belt 91 is used to transport a single umbrella tube 81, and the longer conveyor belt 91 can be used to transport a single umbrella tube 81, and then be assembled with the umbrella tube 81 on the other side of the shorter conveyor belt 91. It can also be used to transport an umbrella tube group after multiple umbrella tubes 81 are assembled, and then be assembled with a single umbrella tube 81 on the other side of the shorter conveyor belt 91, and the umbrella tube 81 on the longer conveyor belt 91 needs to be installed with a V-shaped spring clip 311.

[0049] refer to Figure 5 and Figure 6 The positioning mechanism 2 includes a motor 21 and a fixing plate 24. The motor 21 is fixedly connected to the base 8 through a plate. A support sheet 221 is installed on the left side of the motor 21 through bolts. The motor shaft 212 of the motor 21 passes through the support sheet 221 and rotates together. A slip ring 22 is fixedly installed on the support sheet 221, and the inner ring of the slip ring 22 is fixedly installed on the motor shaft 212 of the motor 21, and the outer ring is fixed on the support sheet 221. The slip ring 22 is According to the prior art, the inner ring is rotatable, and a pneumatic clamp 23 is fixedly installed on the outer end of the motor shaft 212 of the motor 21, and a clamp block 231 is fixedly installed on the two sliding jaws of the pneumatic clamp 23. The pneumatic clamp 23 drives the two clamp blocks 231 to clamp the umbrella tube 81. A rotary joint 211 is installed on the side of the motor 21 away from the slip ring 22. The rotary joint 211 is used to connect the external air pipe and can rotate 360 ​​degrees.

[0050] refer to Figure 5 and Figure 6 The motor shaft 212 of the motor 21 has cylindrical grooves at both ends that communicate with the outside world. One end is connected to the rotary joint 211, and the other end is connected to the position of the air intake mounting block of the pneumatic clamp 23. With this cylindrical motor shaft 212, the motor 21 can drive the pneumatic clamp 23 to rotate 360 ​​degrees, and at the same time, the pneumatic clamp 23 can clamp the umbrella tube 81, and then the motor 21 drives the umbrella tube 81 to rotate and adjust the position so that the umbrella hole for installing the spring piece 311 is in the correct position.

[0051] refer to Figure 5 and Figure 6 A solenoid valve 232 is fixedly installed on the outer side of the pneumatic clamp 23, and the solenoid valve 232 is connected to the slip ring 22 through a wire. With the slip ring 22, the solenoid valve 232 can be better powered. No matter how the motor 21 drives the pneumatic clamp 23 to rotate, the solenoid valve 232 can control the pneumatic clamp 23 by supplying power through the slip ring 22.

[0052] refer to Figure 5 and Figure 6A telescopic cylinder 25 is fixedly provided on the outer side surface of the fixing plate 1 24, and a mounting plate 26 is fixedly provided on the outer end surface of the piston rod of the telescopic cylinder 25. A connecting block 261 is fixedly installed on the upper end of the mounting plate 26 by bolts. The position of the connecting block 261 can be changed according to actual detection requirements until the umbrella hole of the umbrella tube 81 can be better detected.

[0053] refer to Figure 5 and Figure 6 A sensor 1 262 is fixedly mounted on the surface of the connecting block 261, and a sensor 2 263 is fixedly mounted on the outer side of the mounting plate 26. The outer ends of the sensor 1 262 and the sensor 2 263 are connected with matching electronic components to enable the sensor 1 262 and the sensor 2 263 to complete the detection of the umbrella hole.

[0054] Furthermore, the umbrella tube 81 is transported to the position of the positioning mechanism 2 by the conveyor belt 2 91, and then the mounting plate 26 is driven by the telescopic cylinder 25 to allow the sensor 2 263 to enter the interior of the umbrella tube 81 and emit light. At this time, if the position of the umbrella hole is correct, the sensor 1 262 will receive the light from the sensor 2 263, and then the telescopic cylinder 25 is reset, and the umbrella tube 81 continues to be transported. If the position of the umbrella hole is incorrect, the sensor 1 262 is blocked by the wall of the umbrella tube 81 and will not receive the light from the sensor 2 263. At this time, the pneumatic clamp 1 23 drives the clamp 1 231 to fix and clamp one end of the umbrella tube 81, and then the pneumatic clamp 1 23 is driven to rotate by the motor 21 to make the umbrella tube 81 flip over a surface until the sensor 1 262 detects the light from the sensor 2 263. This process is to facilitate the installation of the V-shaped spring clip 311 in the subsequent process, so that the protrusion of the spring clip 311 corresponds to the umbrella hole of the umbrella tube 81.

[0055] refer to Fig. 9 The punching and shaping mechanism 4 includes a support plate 41 fixed on the machine base 8, a punching cylinder 42 is fixedly arranged on the outer side of the support plate 41, the piston rod of the punching cylinder 42 penetrates the surface of the support plate 41, and a punching rod 44 is arranged at its outer end, the punching rod 44 is fixedly matched with the piston rod of the punching cylinder 42 by bolts, so as to facilitate the replacement of the size of the punching rod 44, a straight plate is fixedly arranged on the outer side of the support plate 41, and a mold plate 43 is fixedly installed on the outer side of the straight plate by bolts, and a punching groove 431 is opened on the surface of the mold plate 43, and the size of the punching groove 431 corresponds to the size of the punching rod 44.

[0056] Furthermore, when the umbrella tube 81 is transported to the positions of the two punching and shaping mechanisms 4, the punching cylinders 42 on both sides synchronously drive the punching rods 44 to punch holes at both ends of the umbrella tube 81, so that the burrs at the tube mouth position of the umbrella tube 81 are flushed away, and at the same time, the tube mouth shape of the umbrella tube 81 is shaped to facilitate the assembly with other umbrella tubes 81.

[0057] refer to Fig.11 , Fig.12 and Fig.13 The shrapnel mounting mechanism 3 includes a support platform 31 connected to the machine base 8, a vibration disk 32 is installed on the surface of the support platform 31, and the vibration disk 32 is fixed to the support platform 31 by bolts. A mounting frame and a fixing plate 36 are installed on the support platform 31. A bracket is fixedly provided on the upper end of the mounting frame, and a vibration bar slide 35 is fixedly provided on the surface of the bracket. The vibration bar slide 35 is a prior art and can vibrate synchronously with the vibration disk 32 to vibrate and transfer the shrapnel 311 entering the surface of the vibration bar slide 35 one by one.

[0058] refer to Fig.11 , Fig.12 and Fig.13 A lower jumper 34 is provided above the bracket. The lower jumper 34 is provided above the vibration bar slide rail 35 and is fixed to the bracket. The shape of the vibration bar slide rail 35 is consistent with the shape of the spring piece 311, and one end of the vibration bar slide rail 35 is connected to the discharge port of the vibration disk 32, so that the spring piece 311 can be vibrated to the surface of the vibration bar slide rail 35 through the vibration disk 32, and then the spring piece 311 is controlled by the lower jumper 34 to move one by one in an orderly manner on the surface of the vibration bar slide rail 35 during the process of being vibrated and transported by the vibration bar slide rail 35.

[0059] refer to Fig.11 , Fig.12 and Fig.13 The lower surface of the lower jumper 34 is linearly provided with a plurality of sliding cavities 343, a sliding baffle 342 is slidably arranged in the sliding cavity 343, and an O-ring is installed on the upper end of the sliding baffle 342 to enhance the air tightness of the sliding cavity 343. The outer side surface of the lower jumper 34 is symmetrically provided with ventilation grooves 341, and the upper end of the sliding cavity 343 is provided with air inlet holes 344. The air inlet holes 344 in every two adjacent sliding cavities 343 are staggered, and the air inlet holes 344 on one side are communicated with the ventilation grooves 341 on the corresponding side. The upper end surface of the lower jumper 34 is provided with two ventilation holes 345, and the two ventilation holes 345 are respectively communicated with the two ventilation grooves 341.

[0060] refer to Fig.11 , Fig.12 and Fig.13When designing and processing the overall frame of the lower jumper 34, a plurality of sliding cavities 343 are firstly opened, and then an air inlet 344 is opened in each sliding cavity 343, and it is ensured that the air inlet 344 in every two adjacent sliding cavities 343 are staggered, and then two ventilation grooves 341 are opened from the outer side surface of the lower jumper 34. After the opening is completed, one end of the ventilation groove 341 is closed, and then two ventilation holes 345 are opened on the upper end surface of the lower jumper 34, and the ventilation holes 345 are respectively communicated with the ventilation grooves 341 below.

[0061] Furthermore, the two sets of air intake equipment are respectively connected to the two air vents 345 on the surface of the lower jumper 34 through air pipes, and then air is inflated into one of the air vents 345 through the air intake pipe of an air intake device. At this time, the gas will enter the corresponding sliding cavity 343 through the several air intake holes 344 on this side, and then push the sliding baffle rod 342 to make the lower end of the sliding baffle rod 342 contact the surface of the vibration bar slide rail 35. At this time, the several sliding baffle rods 342 are spaced above the vibration bar slide rail 35, and the gap between every two sliding baffle rods 342 is sufficient to make the spring piece 311 stay on the surface of the vibration bar slide rail 35. At this time, the spring piece 311 at the outermost end of the vibration bar slide rail 35 moves its position through vibration.

[0062] Furthermore, the air holes 345 on this side are evacuated through the air intake pipe of the air intake device on this side, so that the plurality of sliding bars 342 that were originally in contact with the surface of the vibration bar slide rail 35 are retracted into the sliding cavity 343. At the same time, the air holes 345 on the other side are inflated through the air intake pipe of another air intake device, so that the gas enters the corresponding sliding cavity 343 through the plurality of air intake holes 344 on the other side, and then pushes the other set of sliding bars 342.

[0063] The lower end of this group of sliding baffles 342 contacts the surface of the vibrating bar slide 35. When the two groups of sliding baffles 342 perform an alternating lifting and lowering motion, the spring pieces 311 will be pushed forward a certain distance through the vibration of the vibrating bar slide 35. As the vibrating bar slide 35 vibrates to feed the spring pieces 311, and then cooperates with the lower jumper 34 to move the spring pieces 311 one by one, the spring pieces 311 will not be piled up, which effectively ensures the orderly feeding of the spring pieces 311 and improves the working efficiency of the umbrella rod processing.

[0064] refer to Fig.11 , Fig.12 and Fig.13The fixing plate 2 36 is fixed on the surface of the support platform 31 by bolts, and a rotating device 2 361 is fixedly installed on the outer surface of the fixing plate 2 36. A telescopic cylinder 5 362 is arranged on the other outer surface of the fixing plate 2 36. The output shaft of the rotating device 2 361 passes through the fixing plate 2 36 and is fixed to the telescopic cylinder 5 362. The telescopic cylinder 5 362 is driven to rotate by the rotating device 2 361.

[0065] refer to Fig.11 , Fig.12 and Fig.13 A pneumatic clamper 2 363 is provided on the outer side of the telescopic cylinder 5 362. After the spring piece 311 falls from the vibration bar slide rail 35 to the pneumatic clamper 2 363 through vibration, the pneumatic clamper 1 23 drives two sliding claws to clamp the spring piece 311.

[0066] refer to Fig.11 , Fig.12 and Fig.13 A telescopic cylinder six 37 is arranged next to the fixed plate two 36, and the telescopic cylinder six 37 is fixed to the surface of the support platform 31 through a plate. A pneumatic clamp three 371 is fixedly arranged on the upper end of the piston rod of the telescopic cylinder six 37, and a clamp block two 372 is fixedly arranged on the upper ends of the two sliding piston rods of the pneumatic clamp three 371. The inner side surfaces of the clamp block two 372 are respectively provided with a groove one 3723 and a groove two 3725. The groove one 3723 is located on the outer side of the clamp block two 372, and the groove two 3725 is located on the inner side of the clamp block two 372. A fixed plate three 373 is fixedly arranged on the side surface of the pneumatic clamp two 363, and a pushing cylinder one 374 is installed on the outer side surface of the fixed plate three 373. The piston rod of the pushing cylinder one 374 penetrates the fixed plate three 373 and makes a sliding fit.

[0067] Further, after the spring piece 311 is clamped by the pneumatic clamper 2 363, the rotating device 2 361 is started to drive the telescopic cylinder 5 362 to rotate, so that the spring piece 311 is facing the surface of the pneumatic clamper 3 371, and then the telescopic cylinder 6 37 is started to make the pneumatic clamper 3 371 rise, and then the pneumatic clamper 2 363 releases the clamping of the spring piece 311, so that the spring piece 311 falls on the surface of the pneumatic clamper 3 371 between the two clamping blocks 2 372, and then the telescopic cylinder 2 15 is reset, and then the two clamping blocks 2 372 are driven to approach each other through the pneumatic clamper 2 363, at this time the umbrella tube 81 One end of the umbrella tube 81 has been transported between the two clamping blocks 372 by the conveyor belt 91, and then one end of the umbrella tube 81 is clamped and fixed by the groove 3723. At the same time, the spring piece 311 is merged by the groove 3725. Then, the pushing cylinder is started to push the spring piece 311 toward the cavity position of the umbrella tube 81, so that the spring piece 311 is installed in the cavity of the umbrella tube 81. At this time, the protrusion of the spring piece 311 is exposed from the umbrella hole of the umbrella tube 81. This installation process of the spring piece 311 improves the assembly accuracy of the spring piece 311 and further improves the assembly quality of the spring piece 311.

[0068] refer to Fig.11 , Fig.12 and Fig.13 The sheathing mechanism 5 includes a support frame 51 and a telescopic cylinder 54. The support frame 51 is fixed to the base 8 by bolts. An electric slide 52 is fixedly provided on the upper end of the support frame 51. A connecting block 53 is fixedly provided on the slider of the electric slide 52. A push rod 531 is fixedly provided on the outer side of the connecting block 53. The electric slide 52 can drive the movement of the connecting block 53, and then the umbrella tube 81 can be sheathed by the push rod 531.

[0069] refer to Fig.11 , Fig.12 and Fig.13 A placement groove is provided on the surface of the machine base 8, and a telescopic cylinder seven 54 is fixedly arranged in the placement groove. A support plate two 55 is fixedly arranged on the upper end of the piston rod of the telescopic cylinder seven 54, and four pneumatic clamps four 56 are fixedly arranged on the surface of the support plate two 55. Clamping blocks three 57 are symmetrically fixedly arranged on the sliding piston rods of the pneumatic clamps four 56 on the leftmost and rightmost sides, and clamping blocks four 58 are symmetrically fixedly arranged on the sliding piston rods of the two middle pneumatic clamps four 56, and the length of the clamping block four 58 is greater than that of the clamping block three 57.

[0070] Furthermore, when the conveyor belts 2 91 on both sides transport the two umbrella tubes 81 to the position of the set mechanism 5, the telescopic cylinder 7 54 drives the support plate 2 55 to rise, and then the pneumatic clamper 4 56 is used to clamp the umbrella tubes 81 on both sides. At this time, the pneumatic clamper 4 56 located on the far right needs to fix the umbrella tube 81 on this side so that the umbrella tube 81 cannot move. The pneumatic clamper 4 56 on the far left drives the clamping block 3 57 to clamp the umbrella tube 81 on this side, mainly to limit the position of the umbrella tube 81 on this side. The two pneumatic clampers 4 56 in the middle are the same as the pneumatic clamper 4 56 on the far left, except that the umbrella tube 81 is limited and clamped, and the sliding of the umbrella tube 81 is not affected.

[0071] Furthermore, the electric slide 52 drives the movement of the connecting block 1 53, and then the push rod 531 pushes the left umbrella tube 81 to enter the inner cavity of the right umbrella tube 81, and then the assembly is completed.

[0072] refer to Fig.10 The stamping lock mechanism 6 includes a U-shaped mounting frame 61 fixed above the machine base 8, a sliding cylinder 64 is fixedly provided on the lower surface of the mounting frame 61, a mounting frame 2 65 is fixedly connected to the piston rod of the sliding cylinder 64, a stamping cylinder 66 is fixedly provided in the mounting frame 2 65, and a stamping rod 2 661 is fixedly provided at the lower end of the piston rod of the stamping cylinder 66.

[0073] refer to Fig.10 A rotating cylinder 2 62 is fixedly provided on the inner side surface of the mounting frame 1 61, and a pneumatic clamp 5 63 is fixedly provided on the outer end of the rotating piston rod of the rotating cylinder 2 62. A clamping block 5 631 is fixedly provided on the two sliding piston rods of the pneumatic clamp 5 63. The umbrella tube 81 is clamped by the pneumatic clamp 5 63, and then the position of the umbrella tube 81 is adjusted by the rotating cylinder 2 62. At this time, the umbrella tube 81 entering the stamping locking mechanism 6 is the umbrella tube group after the set.

[0074] refer to Fig.10 A sensor 2 67 is fixedly arranged on the outer side surface below the mounting frame 2 65 , a punching rod 1 651 is fixedly arranged on the inner side surface below the mounting frame 2 65 , the sensing probe of the sensor 2 67 is located on the side of the punching rod 1 651 , and a locking groove 652 is opened on the upper surface of the punching rod 1 651 .

[0075] refer to Fig.10 A support plate three 68 is fixedly installed at a position corresponding to the mounting frame two 65 on the surface of the base 8, and a fixing plate four 681 is fixedly arranged on the outer side of the support plate three 68. The sensing probe of the sensor two 67 and the punching rod one 651 can both penetrate the side of the fixing plate four 681 without interfering with each other. A telescopic cylinder eight 69 is fixedly arranged on the outer side of the fixing plate four 681.

[0076] Further, after the position adjustment of the umbrella tube 81 is completed, the sliding cylinder 64 is started to drive the second mounting frame 65 to approach the umbrella tube 81, so that the punching rod 1 651 enters the inside of the umbrella tube 81. At this time, the sensing probe of the second sensor 67 is located outside the umbrella tube 81, and then the sensing probe of the second sensor 67 is used to detect whether the protrusion of the spring piece 311 is in this position. If the position is correct, the punching cylinder 66 is started to make the punching rod 2 661 cooperate with the punching rod 1 651 to punch, so that the punching rod 2 661 cooperates with the locking groove 652 to leave a concave groove on the surface of the umbrella tube 81. The dent can effectively prevent the umbrella tube 81 sleeve inside the umbrella tube 81 from slipping out during the subsequent transportation. After the stamping is completed, due to the appearance of the dent, the locking groove 652 of the stamping rod 1 651 will be stuck with the umbrella tube 81. At this time, the sliding cylinder 64 is not easy to reset. Then the telescopic cylinder 8 69 below can be started to lift the umbrella tube 81. The lifting distance will not make the umbrella tube 81 separate from the clamping block 1 921 and the clamping block 2 922, but can separate the locking groove 652 of the stamping rod 1 651 from the dent, so that the sliding cylinder 64 can be reset conveniently.

[0077] Furthermore, if the sensing probe of the sensor 2 67 does not detect the bump of the spring piece 311 , the umbrella tube 81 can be clamped by the pneumatic clamp 5 63 , and then the position of the umbrella tube 81 can be adjusted by rotating the cylinder 2 62 until the position of the umbrella tube 81 is adjusted correctly.

[0078] refer to Figure 2 and Fig.10 The discharging mechanism 7 includes a conveyor belt 71 and other necessary connecting driving components. A plurality of magnetic blocks 72 are fixedly arranged on the surface of the conveyor belt 71, and a pushing cylinder 691 is symmetrically arranged between the conveyor belt 71 and the conveyor belt 91. The pushing cylinder 691 is fixedly arranged on the machine base 8. The pushing cylinder 691 is used to push the processed umbrella tube 81 away from the clamping block 921 and the clamping block 922, and then push it to the surface of the conveyor belt 71, and then adsorb it through the magnetic block 72, and then the umbrella tube 81 is discharged and transported.

[0079] The above overall process can greatly improve the working efficiency of the umbrella tube 81 processing, and can improve the accuracy of the umbrella tube 81 assembly, and reduce the labor intensity of the staff.

[0080] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0081] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0082] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A multi-tube umbrella tube assembly line, characterized in that: It comprises a machine base (8), a positioning mechanism (2), a punching and shaping mechanism (4), a sleeve mechanism (5), a punching and locking mechanism (6) and a transmission mechanism (9). The positioning mechanism (2) comprises a second motor (21) and a slip ring (22); a support plate (221) is installed on the left side of the second motor (21) by means of bolts; a motor shaft (212) of the second motor (21) penetrates the support plate (221) and is rotatably matched; a pneumatic clamper (23) is fixedly installed on the outer end of the motor shaft (212) of the second motor (21); a rotary joint (211) is installed on the right side of the second motor (21); cylindrical through grooves communicating with the outside are provided at both ends of the motor shaft (212) of the second motor (21); one end of the motor shaft (212) is connected to the rotary joint (211), and the other end is connected to the air inlet position of the first pneumatic clamper (23); The set mechanism (5) comprises an electric slide (52) and a telescopic cylinder (54), a connecting block (53) being fixedly arranged on the slider of the electric slide (52), a push rod (531) being fixedly arranged on the outer side surface of the connecting block (53), a supporting plate (55) being fixedly arranged on the upper end of the piston rod of the telescopic cylinder (54), four pneumatic clamps (56) being fixedly arranged on the surface of the supporting plate (55), clamping blocks (57) being symmetrically fixedly arranged on the sliding piston rods of the pneumatic clamps (56) on the far left and the far right, and clamping blocks (58) being symmetrically fixedly arranged on the sliding piston rods of the two pneumatic clamps (56) in the middle, The conveying mechanism (9) comprises a conveyor belt (91) having a plurality of neatly arranged U-shaped mounting blocks (92) fixedly mounted on the surface of the conveyor belt (91), a clamping block (921) and a clamping block (922) being arranged inside the mounting block (92), the clamping block (922) being fixed to the mounting block (92) by bolts, the clamping block (921) sliding inside the mounting block (92), the outer side surface of the clamping block (921) being symmetrically provided with cylindrical grooves (923), a spring (924) being fixedly mounted inside the cylindrical groove (923), the other end of the spring (924) being fixed to the inner wall of the mounting block (92).

2. A multi-tube umbrella tube assembly line according to claim 1, characterized in that: The second motor (21) is connected to the machine base (8) via an L-shaped plate, the inner ring of the slip ring (22) is fixedly mounted on the surface of the motor shaft (212), and the outer ring is fixed on the support plate (221), and the outer side surface of the pneumatic clamp (23) is fixedly mounted with an electromagnetic valve (232), and the electromagnetic valve (232) is connected to the slip ring (22) via a wire.

3. The multi-tube umbrella tube assembly line according to claim 1, characterized in that: The positioning mechanism (2) further comprises a fixing plate (24) fixed on the surface of the machine base (8), a telescopic cylinder (25) being fixedly arranged on the outer side surface of the fixing plate (24), a mounting plate (26) being fixedly arranged on the outer end surface of the piston rod of the telescopic cylinder (25), a connecting block (261) being fixedly arranged on the upper end of the mounting plate (26) by means of bolts, a sensor (262) being fixedly arranged on the surface of the connecting block (261), and a sensor (263) being fixedly arranged on the outer side surface of the mounting plate (26).

4. The multi-tube umbrella tube assembly line according to claim 1, characterized in that: The punching and shaping mechanism (4) comprises a support plate (41) fixed on a machine base (8), a punching and shaping cylinder (42) being fixedly arranged on the outer side surface of the support plate (41), a piston rod of the punching and shaping cylinder (42) penetrating the surface of the support plate (41), and a punching and shaping rod (44) being arranged at the outer end thereof, the punching and shaping rod (44) being fixedly matched with the piston rod of the punching and shaping cylinder (42) by means of bolts.

5. A multi-tube umbrella tube assembly line according to claim 4, characterized in that: A straight plate is fixedly arranged on the outer side surface of the support plate 1 (41), and a mold plate (43) is fixedly installed on the outer side surface of the straight plate by bolts. A punching shaping rod groove (431) is opened on the surface of the mold plate (43), and the size of the punching shaping rod groove (431) corresponds to the size of the punching shaping rod (44).

6. The multi-tube umbrella tube assembly line according to claim 1, characterized in that: The punching lock mechanism (6) comprises a U-shaped mounting frame (61) fixed above the machine base (8), a sliding cylinder (64) is fixedly arranged on the lower surface of the mounting frame (61), a mounting frame (65) is fixedly connected to the piston rod of the sliding cylinder (64), a punching cylinder (66) is fixedly arranged inside the mounting frame (65), and a punching rod (661) is fixedly installed at the lower end of the piston rod of the punching cylinder (66).

7. The multi-tube umbrella tube assembly line according to claim 6, characterized in that: A rotating cylinder 2 (62) is fixedly arranged on the inner side surface of the mounting frame 1 (61), a pneumatic clamp 5 (63) is fixedly arranged on the outer end of the rotating piston rod of the rotating cylinder 2 (62), and a clamping block 5 (631) is fixedly arranged on both sliding piston rods of the pneumatic clamp 5 (63).

8. The multi-tube umbrella tube assembly line according to claim 6, characterized in that: A second sensor (67) is fixedly arranged on the outer side surface below the second mounting frame (65), and a first punching rod (651) is fixedly arranged on the inner side surface below the second mounting frame (65). The sensing probe of the second sensor (67) is located on the side of the first punching rod (651), and a locking groove (652) is provided on the upper surface of the first punching rod (651).

9. The multi-tube umbrella tube assembly line according to claim 8, characterized in that: A support plate three (68) is fixedly installed at a position corresponding to the surface mounting frame two (65) of the machine base (8), and a fixing plate four (681) is fixedly arranged on the outer side surface of the support plate three (68). The sensing probe of the sensor two (67) and the punching rod one (651) can both penetrate the side surface of the fixing plate four (681) without interfering with each other, and a telescopic cylinder eight (69) is fixedly arranged on the outer side surface of the fixing plate four (681).

10. The multi-tube umbrella tube assembly line according to claim 1, characterized in that: The discharging mechanism (7) comprises a conveyor belt (71), and a plurality of magnetic blocks (72) are fixedly arranged on the surface of the conveyor belt (71).