Annular scribing and cutting equipment for automobile drainage pipe

Abstract

An annular scribing and cutting-off device for an automobile drainage pipe comprises a rack, a chain transmission module, a positioning module, a cutting module and a scribing module, wherein the chain transmission module, the positioning module, the cutting module and the scribing module are installed on the rack. The chain transmission module is used for conveying the drainage pipe placed on the chain transmission module to each station; the positioning module is arranged at the feeding end of the chain transmission module and used for aligning one end of the drainage pipe placed on the chain transmission module; the cutting module is located on one side of the chain transmission module and used for cutting off the redundant part of one end of the non-aligned drainage pipe. The scribing module is arranged on the chain transmission module in a striding mode and used for scribing on the periphery of the drainage pipe. Automatic operation of positioning, cutting and scribing of the drainage pipe is achieved, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts processing, specifically referring to a device for annular scribing and cutting of automotive drain pipes. Background Technology

[0002] Currently, different parts of a car's drain pipe require the assembly of various components. Therefore, for precise assembly, it is necessary to pre-mark the drain pipe with lines at different lengths along its outer circumference. Typically, a circle is drawn along the circumference, with several marks needed on a single drain pipe. Currently, drain pipe marking is done manually. The specific steps of manual marking are: manually placing the drain pipe, aligning one end, determining the position and marking it with a measuring tool, then flipping the drain pipe and completing a full circle of markings at the same position, and finally trimming the excess portion of the drain pipe. This marking process involves repeated manual alignment, marking, flipping, and trimming, resulting in low marking efficiency and insufficient accuracy. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a device for marking and cutting a car drain pipe in a circular pattern, which can complete the marking and cutting of the car drain pipe in a circular pattern, with high work efficiency, high marking accuracy, reduced manual labor intensity, and saved labor costs.

[0004] To solve the above-mentioned technical problems, the present invention provides a circular marking and cutting device for automotive drain pipes, including a frame, and a chain drive module, a positioning module, a cutting module, and a marking module mounted on the frame; the chain drive module is used to transport the drain pipes placed thereon to each workstation; the positioning module is located at the feeding end of the chain drive module and is used to align one end of the drain pipe placed on the chain drive module; the cutting module is located on one side of the chain drive module and is used to cut off the excess portion of one end of the misaligned drain pipe; the marking module spans the chain drive module and marks lines on the outer periphery of the drain pipe.

[0005] Preferably, the marking module includes two sets of horizontal linear displacement modules, two sets of vertical linear displacement modules, several rotating components, and several inkjet printer components; a set of the horizontal linear displacement modules is respectively arranged on both sides of the chain drive module, and the displacement direction of the horizontal linear displacement modules is parallel to the transmission direction of the chain drive module; a set of vertical linear displacement modules is installed on each set of horizontal linear displacement modules; a first horizontal mounting plate is connected to the two sets of horizontal linear displacement modules, and a second horizontal mounting plate is connected to the two sets of vertical linear displacement modules. The vertical linear displacement modules drive the second horizontal mounting plates to move up and down, and the horizontal linear displacement modules drive the first horizontal mounting plates and the vertical linear displacement modules. The rotating assembly includes a support roller group and a pressure roller group, respectively. The support roller group is mounted on the first horizontal mounting plate, and the pressure roller group is mounted on the second horizontal mounting plate. The support roller group can move horizontally along the first horizontal mounting plate and can move vertically relative to the first horizontal mounting plate. The pressure roller group can move horizontally along the second horizontal mounting plate. The support roller group and the pressure roller group are used to clamp the drain pipe, and the support roller group is used to rotate the drain pipe. The inkjet printer assembly is mounted on the second horizontal mounting plate and can move linearly along the second horizontal mounting plate. The inkjet printer assembly is used to scribble lines on the rotating drain pipe.

[0006] Preferably, a fourth cylinder is mounted on the first horizontal mounting plate, a fifth cylinder is provided on the telescopic end of the fourth cylinder, a support block is provided on the telescopic end of the fifth cylinder, a support roller assembly is provided at one end of the support block, and the support roller assembly is driven to rotate by a transmission gear set provided on the support block; the support roller assembly includes two rollers arranged in parallel and spaced apart; the fourth cylinder extends and retracts along the length direction of the first horizontal mounting plate, and the fifth cylinder extends and retracts vertically along the length direction of the first horizontal mounting plate.

[0007] Preferably, a linear guide slider structure is installed on the second horizontal mounting plate, a lead screw mechanism is connected to the slider of the linear guide slider structure, a pressure roller mounting plate is installed on the slider, and the pressure roller assembly is installed on the lower end side of the pressure roller mounting plate; the lead screw mechanism drives the slider to move linearly along the length direction of the second horizontal mounting plate with the pressure roller assembly.

[0008] Preferably, the cutting module includes a guide post, an upper cutting blade assembly, a lower cutting blade assembly, and a cutting positioning assembly; the upper cutting blade assembly, the lower cutting blade assembly, and the cutting positioning assembly are respectively mounted on the guide post; the upper cutting blade assembly and the lower cutting blade assembly are respectively located above and below the drain pipe, and the upper cutting blade assembly and the lower cutting blade assembly can move vertically in opposite directions or away from each other; the cutting positioning assembly is located on the side of the upper cutting blade assembly and the lower cutting blade assembly facing the chain drive module, and the cutting positioning assembly moves vertically in a straight line to position the drain pipe to be cut.

[0009] Preferably, the upper cutting blade assembly includes a second cylinder, an upper cutting blade mounting plate, and an upper cutting blade; a top mounting plate is installed on the top of the guide post, the second cylinder is mounted on the top mounting plate, the upper cutting blade mounting plate is sleeved on the guide post, and the upper cutting blade is mounted on one end of the upper cutting blade mounting plate with its blade facing upwards; the telescopic rod of the second cylinder is connected to the upper cutting blade mounting plate; the lower cutting blade assembly includes a third cylinder, a lower cutting blade mounting plate, and a lower cutting blade; the third cylinder is mounted on the frame, the lower cutting blade mounting plate is sleeved on the guide post, and the lower cutting blade is mounted on one end of the lower cutting blade mounting plate with its blade facing upwards; the telescopic rod of the third cylinder is connected to the lower cutting blade mounting plate; the upper cutting blade and the lower cutting blade are configured with an interference fit during cutting.

[0010] Preferably, the lower cutter is slidably mounted on the lower cutter mounting plate, and a retaining spring is provided on the side of the lower cutter away from the upper cutter. The retaining spring is in a compressed state, and the bottom of the lower cutter on the same side as the upper cutter is pressed by an adjustable clamping rod. The upper end of the lower cutter is provided with a guide angle facing the upper cutter. When cutting, the lower end of the upper cutter abuts against the guide angle and makes close contact with the lower cutter.

[0011] Preferably, the chain drive module includes two parallel drive shafts and driven shafts, with a plurality of chains spaced apart along the length direction on the drive shafts and driven shafts; every two chains form a chain group, and a plurality of carriers are spaced apart along the transmission direction on each chain group, forming rows of carrier groups perpendicular to the chain transmission direction, with each carrier group holding a drain pipe; the drive shaft is connected to a drive motor via the chains.

[0012] Preferably, it further includes a plurality of chain support components for supporting the chain.

[0013] Preferably, the positioning module includes a transmission belt and a linear guide rail located on one side of the feeding end of the chain drive module. The linear guide rail is located above the transmission belt. The transmission belt is connected to a slider on the linear guide rail via a belt connecting plate. A product positioning plate is provided on the slider. The product positioning plate spans across the chain at the feeding end of the chain drive module. The transmission belt drives the product positioning plate to move along the chain at the feeding end of the chain drive module.

[0014] The marking and cutting equipment of this invention can automate the automatic cutting and marking of automotive drain pipes, improving work efficiency and quality. It solves the problems of errors caused by manual alignment during the marking process, low efficiency of marking flipping, and safety risks associated with alignment and cutting. It also reduces the intensity and cost of manual labor. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a device for marking and cutting the circular lines of a car's drainage pipe.

[0016] Figure 2 This is a schematic diagram of the chain drive module structure from the direction of the collection box.

[0017] Figure 3 This is a schematic diagram of the positioning module structure from the direction of the collection box.

[0018] Figure 4 This is a schematic diagram of the cutting module structure.

[0019] Figure 5 This is a schematic diagram of the cutting module structure.

[0020] Figure 6 This is a schematic diagram of the line drawing module structure.

[0021] Figure 7 This is a schematic diagram of the transmission gear set and support roller set in the scribing module.

[0022] Figure 8 This is a schematic diagram of the movable pressure roller group structure in the scribing module.

[0023] Figure 9 This is a schematic diagram of the inkjet printer component in the marking module.

[0024] Figure label:

[0025] Frame 1, Chain drive module 2, Positioning module 3, Cutting module 4, Marking module 5, Mounting plate 6, Drive shaft 21, Driven shaft 22, Bearing mounting seat 23, Chain 24, Chain 25, First motor 26, Chain support 27, Carrier 28, Drive belt 31, Second motor 32, Linear guide rail 33, Slider 34, Belt connecting plate 35, Product positioning plate 36, Positioning fixing plate 37, Product pallet module 41, Guide column 42, Top mounting plate 43, First cylinder 44, Lower pressure connecting plate 45, Spring mounting plate 46, Lower pressure guide column 47, Lower pressure positioning plate 48, Second cylinder 49, Upper cutter mounting plate 50, Upper cutter 51, Third cylinder 52, Lower cutter mounting plate Plate 53, lower cutter 54, clamping rod 55, material drop chute 56, horizontal linear displacement module 61, mounting plate assembly 62, first horizontal mounting plate 63, vertical linear displacement module 64, second horizontal mounting plate 65, fourth cylinder 66, fifth cylinder 67, support block 68, driven gear 69, roller 70, driving gear 71, motor 72, transition gear 73, linear guide slider structure 75, lead screw mechanism 76, pressure roller mounting plate 77, pressure roller group 78, linear guide 80, drive motor 82, driving gear 83, inkjet printer 84, horizontal mounting plate 85, vertical mounting plate 86, limit post 87, sensors (90, 91, 92, 93, 94, 95, 96, 97). Detailed Implementation

[0026] Regarding the above technical solutions, preferred embodiments are now described in detail with reference to the figures. A circular marking and cutting device for automotive drain pipes includes a frame 1, a chain drive module 2, a positioning module 3, a cutting module 4, and a marking module 5. (See attached figures.) Figures 1 to 9 ,in:

[0027] Chain drive module 2, positioning module 3, cutting module 4, and marking module 5 are respectively installed on frame 1. Positioning module 3 is installed on one side of chain drive module 2 and is used to position the drain pipe A when it is being fed. Chain drive module 2 is used to transport the drain pipe A placed on it to each module. After passing through each module, the marked drain pipe is then transported to the collection process. Cutting module 4 cuts off the excess length of the drain pipe from one end. Marking module 5 is used to mark the outer surface of the cut drain pipe.

[0028] The frame 1 includes a support frame, on which a horizontal mounting plate 6 is mounted for mounting various modules.

[0029] Chain drive module 2, see Figure 2It is installed on the mounting plate 6 of the frame 1. It mainly includes a drive shaft 21 and a driven shaft 22 arranged in parallel intervals. The two ends of the drive shaft 21 and driven shaft 22 are respectively mounted on bearing mounting seats 23. Several sets of gears are fixedly arranged along the length direction of the drive shaft 21 and driven shaft 22. A chain 24 is wound around each set of gears, forming several chains 24 arranged in parallel intervals along the length direction of the drive shaft and driven shaft. Two adjacent chains 24 form a chain group. For example, if four chains are arranged in parallel intervals along the length direction of the drive shaft, then the first and second chains form one chain group, and the third and fourth chains form another chain group. The drive shaft 21 is connected to the shaft of the first motor 26 through gears and chains 25. The first motor 26 drives the drive shaft 21 to rotate, thereby driving the driven shaft 22 to rotate through the chains 24. Chain support assemblies 27 are provided at intervals along the length of the chain 24. Each chain support assembly 27 includes a support belt plate and a vertical plate for supporting the belt plate, which are arranged along the chain drive direction. The upper chain 24 is located on the support belt plate to support the chain 24 and prevent it from sagging during the transmission of the drain pipe.

[0030] A row of carrier groups is arranged along the chain 24 along the length of the drive shaft 21 and the driven shaft 22. Several rows of carrier groups are spaced apart along the length of the chain 24, and each row of carrier groups holds one drain pipe A. Each row of carrier groups includes several spaced and aligned carriers 28. One carrier 28 is placed on each group of chain groups. The carrier 28 has a U-shaped groove structure, with the width of the U-shaped groove structure slightly larger than the outer diameter of the drain pipe and the depth smaller than the outer diameter of the drain pipe. In this embodiment, four rows of carrier groups are used as a group, that is, after placing four drain pipes A, feeding is performed once.

[0031] Positioning module 3, see Figure 3The assembly includes a drive belt 31, a second motor 32, a linear guide rail 33, a slider 34, a belt connecting plate 35, and a product positioning plate 36. The drive belt 31 is mounted on a large mounting plate 6 located below the outer side of the feed end of the chain drive module, and is driven to rotate by the second motor 32. A linear guide rail 33 is positioned above the drive belt 31 along the length of the drive and driven shafts, and a slider 34 is mounted on the linear guide rail 33. The linear guide rail 33 is mounted on a positioning plate 37. A belt connecting plate 35 is fixedly mounted on the drive belt 31 and connected to the slider 34. The product positioning plate 36 is mounted on the slider 34 and spans across the top of the carrier assembly; in this embodiment, it spans across four rows of carriers. A sensor is positioned below the belt connecting plate 35. A sensor is installed at a designated position on one side of the displacement path of the transmission belt 31, according to the specifications of the drain pipe. When the sensor reaches the corresponding sensor, it responds, the second motor 32 stops moving, and the product positioning plate 36 performs positioning. During loading, the transmission belt 31 carries the product positioning plate 36 to the positioning point. The drain pipe is manually placed on the carrier assembly, with one end of the drain pipe contacting the product positioning plate 36. The product positioning plate 36 aligns one end of the drain pipe, thus positioning it. After all four sets of drain pipes are in place, pressing the start button resets the second motor 32, the transmission belt, and the product positioning plate 36. The chain conveyor module 2 then moves the placed drain pipes to the cutting module station.

[0032] Cutting module 4, see Figures 4 to 5 Located on one side in front of the feed end, between the scribing module 5 and the feed end, the cutting module 4 is used to cut off excess length from one end of the drain pipe. The cutting module 4 includes an upper cutting blade assembly, a lower cutting blade assembly, and a positioning assembly. The upper and lower cutting blade assemblies move vertically or vertically towards or away from each other, cutting off the excess length of the drain pipe from one end. To ensure a neat cut, a retaining spring is provided on one side of the lower cutting blade assembly. The retaining spring holds the lower cutting blade against the upper cutting blade, ensuring close contact and a neat cut. The positioning assembly is used to position the end of the drain pipe to be cut before cutting.

[0033] On one side of the chain drive module 2, there is a product pallet module 41. When the chain drive module 2, carrying the drain pipe, conveys the material from the feeding end to the cutting module 4, one end of the drain pipe is located on the product pallet module 41, and the other end of the drain pipe extends out of the outside of the product pallet module 41. The product pallet module 41 has a positioning groove, and one end of the four drain pipes is located on the top of the positioning groove. Two guide posts 42 are arranged parallel to each other on the outer side of the product pallet module 41. An upper cutter assembly and a lower cutter assembly are slidably arranged on the guide posts 42. A top mounting plate 43 is fixedly arranged on the top of the guide posts 42. The top mounting plate 43 is located above the product pallet module 41. A cutting and positioning assembly is arranged on the side of the top mounting plate 43 facing the chain drive module 2. The cutting and positioning assembly includes a first cylinder 44. A drain pipe is arranged below the telescopic rod of the first cylinder 44. A downward pressing connecting plate 45 of the first cylinder 44 is fixedly arranged on the telescopic rod of the first cylinder 44. A spring mounting plate 46 is installed below the downward pressing connecting plate 45. A downward pressing guide post 47 is installed on the spring mounting plate 46. The upper end of the downward pressing guide post 47 passes through the downward pressing connecting plate 45 and is located above the downward pressing connecting plate 45. A limit block is provided at the upper end of the downward pressing guide post 47 to prevent the downward pressing guide post 47 from disengaging from the downward pressing connecting plate 45 and to limit its downward displacement. A spring for cushioning is fitted around the outer periphery of the pressure guide post 47 between the pressure connecting plate 45 and the spring mounting plate 46. A pressure positioning plate 48 is fixedly connected to the lower part of the spring mounting plate 46. A V-shaped groove is opened on the pressure positioning plate 48 at the position corresponding to the drain pipe. When the drain pipe runs onto the product tray module 41, the first cylinder 44 drives the pressure positioning plate 48 to move downward, and its lower end passes through the positioning groove on the product tray module 41, so that the drain pipe is located in the V-shaped groove on the product tray module 41, thereby positioning the end of the drain pipe.

[0034] The upper cutter assembly includes a second cylinder 49 fixedly mounted on the top mounting plate 43. An upper cutter mounting plate 50 is positioned below the second cylinder 49 and is sleeved on the guide post 42. The upper cutter mounting plate 50 is located on the outer side of the lower connecting plate 45 and spring mounting plate 46, away from the chain drive module 2. The telescopic rod of the second cylinder 49 is fixedly connected to the upper cutter mounting plate. The upper end of the upper cutter 51 is fixedly mounted on the end of the upper cutter mounting plate 50 facing the lower connecting plate 45 and spring mounting plate 46. The cutting edge of the upper cutter 51 is located below the upper cutter mounting plate 50. The upper cutter 51 has V-shaped grooves spaced apart to form its cutting edge. The opening of the V-shaped grooves in the cutting edge of the upper cutter 51 faces [the specified direction].

[0035] The lower cutter assembly includes a third cylinder 52 mounted on a mounting plate 6. A lower cutter mounting plate 53 is positioned above the third cylinder 52 and is sleeved on a guide post 42. The telescopic rod of the third cylinder 52 is fixedly connected to the lower cutter mounting plate. A guide groove is provided on the lower cutter mounting plate 53. The lower end of the lower cutter 54 is positioned in the guide groove on the lower cutter mounting plate 53. A horizontally positioned guide post is fixed to one end of the lower cutter 54. One end of the guide post passes through a fixing block. A limiter is provided at the end of the guide post that passes through the fixing block to prevent the guide post from coming out of the fixing block. A retaining spring is sleeved on the conductive guide post between the fixing block and the lower cutter 54. The cutting edge of the lower cutter 54 is a V-shaped groove, located above the lower cutter mounting plate 53. The opening end of the V-shaped groove faces upward and corresponds one-to-one with the V-shaped groove of the upper cutter. The lower cutter 54 is located below the upper cutter 51. The adjacent sides of the upper cutter 51 and the lower cutter 54 are interference-fitted. A chamfer is provided on the upper side of the lower cutter 54 adjacent to the upper cutter 51. When the second cylinder 49 and the third cylinder 52 drive the upper and lower cutters to move towards each other, the chamfer at the upper end of the upper cutter against the lower cutter moves downward, so that the side of the lower cutter is in close contact with the side of the upper cutter. Due to the action of the lower cutter's spring, it is ensured that the lower cutter is in contact with the side of the upper cutter. When the sides of the upper and lower cutters wear due to long-term operation, the action of the lower cutter's clamping spring compensates for the wear, ensuring that the lower cutter is always in contact with the side of the upper cutter, ensuring that the cutting surface is flush. To better adjust the position of the lower cutter 54, a fastening block is provided on the lower cutter mounting plate 53 on the outside of the lower cutter 54. A tensioning rod 55 passes through the fastening block by means of a threaded connection. The tensioning rod 55 presses the lower cutter 54 from one side, so that the clamping spring is always in a compressed state. When the upper and lower cutters are worn, the tensioning position of the tensioning rod 55 is adjusted in combination with the action of the clamping spring to make the upper and lower cutters in close contact.

[0036] A set of sensors is installed at both the infeed and discharge ends of the upper and lower cutters to detect the drain pipes. In this embodiment, there are four drain pipes per set, so four sensors are correspondingly installed for each set. A set of sensors (90, 91, 92, 93) in the infeed direction of the cutting module detects the drain pipes; when a drain pipe is detected, the cylinders of the cutting module actuate. When a set of sensors (94, 95, 96, 97) in the discharge direction of the cutting module detects a drain pipe, the marking module 5 performs the corresponding action.

[0037] A material discharge chute 56 is provided on the outside of the upper and lower cutters to collect the cut waste material. The cut waste material is collected into the collection box through the material discharge chute 56.

[0038] Line drawing module 5, see Figures 6 to 9Located in front of the cutting module 4, spanning across the chain drive module 2. The marking module 5 includes a horizontal linear displacement module, a vertical linear displacement module, several inkjet printer assemblies, and several rotating assemblies that rotate the drain pipe.

[0039] A set of horizontal linear displacement modules 61 are arranged parallel to each other on opposite sides of the chain drive module 2. Each horizontal linear displacement module 61 is a lead screw mechanism. A vertical mounting plate assembly 62 and a first horizontal mounting plate 63 are fixedly mounted on the slides of the two sets of horizontal linear displacement modules 61, respectively. The two ends of the first horizontal mounting plate 63 are fixedly connected to the slides of the two sets of horizontal linear displacement modules 61. The first horizontal mounting plate 63 passes through the hollow part of the rotating chain 24 and does not obstruct the operation of the chain 24.

[0040] Vertical linear displacement modules 64, which are designed for vertical linear displacement, are installed on the same side of the mounting plate assembly 62. Each vertical linear displacement module 64 is a lead screw mechanism. A second horizontal mounting plate 65 is fixedly connected to the slide of the vertical linear displacement module 64 located on opposite sides of the chain drive module 2. The second horizontal mounting plate 65 is positioned above the chain drive module 2 and the first horizontal mounting plate 63. The second horizontal mounting plate 65 moves vertically relative to the first horizontal mounting plate 63 under the influence of the vertical linear displacement modules 64.

[0041] Several sets of rotating assemblies are installed at intervals on the first horizontal mounting plate 63. The rotating assemblies are located between adjacent vehicles in an adjacent row of vehicle groups. This design does not obstruct the movement of the chain and the vehicle.

[0042] The rotating assembly includes a fourth cylinder 66, a fifth cylinder 67, a transmission gear set, a support roller set, and a movable pressure roller set. (See attached image) Figure 7The fourth cylinder 66 is mounted on one side of the first horizontal mounting plate 63, and its extension and retraction direction is horizontal along the length of the first horizontal mounting plate 63. The fifth cylinder 67 is mounted on the extension rod of the fourth cylinder 66, with the extension end of the fifth cylinder 67 facing upwards, and its extension and retraction direction is vertical, perpendicular to the extension and retraction direction of the fourth cylinder. A support block 68 is mounted on the extension rod of the fifth cylinder 67, with the top of the support block 68 extending beyond the end of the extension rod of the fifth cylinder 67. Two driven shafts are horizontally inserted near the top of the support block 68, with a driven gear 69 and a roller 70 respectively at both ends of the two driven shafts. The two rollers 70 are horizontally spaced apart, with part of them located above the top of the support block 68, forming a support position for the drain pipe between the two rollers 70. A driving gear 71 is located below the driven gear 69, driven by a motor 72, and meshes with the driven gear 69 through a transition gear 73. Driven gear 69, driving gear 71, and intermediate gear 73 form a transmission gear set. The driving gear 71 is driven to rotate by motor 72, which in turn drives the transmission gear set to rotate, causing the two rollers 70 to rotate, and ultimately driving the drain pipe placed on them to rotate. The two rollers 70 form a support roller set.

[0043] The fourth cylinder 66 drives the fifth cylinder 67, the transmission gear set, and the support roller set to move upward as a whole.

[0044] Several sets of movable pressure rollers are respectively provided under the second horizontal mounting plate 65 to support the roller group. The movable pressure roller sets can be moved along the length of the second horizontal mounting plate 65 to adjust the position of the pressure roller sets.

[0045] Displaceable pressure roller assembly, see Figure 8 The system includes a linear guide slider structure 75, a lead screw mechanism 76, a pressure roller mounting plate 77, and a pressure roller assembly 78. The linear guide slider structure 75 is mounted below a second horizontal mounting plate 65, and the lead screw mechanism 76 is mounted on the second horizontal mounting plate 65. The nut on the lead screw mechanism 76 is connected to the slider of the linear guide slider structure 75, driving the slider to move along the linear guide. A pressure roller assembly mounting plate 77 is connected to the slider of the linear guide slider structure 75, and a pressure roller assembly 78 is mounted on one side of the lower end of the pressure roller assembly mounting plate 77. The pressure roller assembly 78 includes two pressure rollers, one for each roller. The drain pipe is fixed between the rollers and the two pressure rollers by the two rollers 70 and the two pressure rollers, and the rotation of the rollers drives the drain pipe to rotate.

[0046] A linear guide rail 80 is provided on the top of the second horizontal mounting plate 65, and a rack is provided on one side of the second horizontal mounting plate 65 along the length direction, the rack spanning the width of the chain drive module 2.

[0047] Inkjet printer components, see Figure 9 The system includes a drive motor 82, a drive gear 83, an inkjet printer 84, a horizontal mounting plate 85, and a vertical mounting plate 86. The horizontal mounting plate 85 is fixedly connected to a slider on a linear guide rail. Both ends of the horizontal mounting plate 85 are located on opposite sides of a second horizontal mounting plate 65. The drive motor 82 is mounted on one side of the horizontal mounting plate 85, with its rotation shaft passing through and below it. The drive gear 83 is mounted on the rotation shaft of the drive motor 82 and meshes with a rack 81. A vertical mounting plate 86 is mounted on one side of the horizontal mounting plate 85 on the other side of the second horizontal mounting plate 65, and the inkjet printer 84 is fixedly mounted on the vertical mounting plate 86. Several horizontal limiting slots are formed on the other side of the second horizontal mounting plate 65, with each slot corresponding to one inkjet printer assembly. A limiting post 87 is installed on the horizontal mounting plate 85. The limiting post 87 abuts against the horizontal limiting groove to limit the displacement range of the inkjet printer assembly along the second horizontal mounting plate 65.

[0048] When the position of the inkjet printer needs to be adjusted, the drive motor 82 rotates, which drives the drive gear 83 to rotate. The drive gear 83 moves along the rack, which in turn moves the entire inkjet printer assembly to adjust its position.

[0049] A collection trough is provided behind the marking module 5 and below the outside of the drive shaft of the chain drive module 2. When the chain drive module 2 transports the marked drain pipe to this position, the drain pipe is dislodged from the carrier and falls into the collection box under the action of gravity and the parabolic motion of the chain.

[0050] Each module is controlled by a programmable PLC.

[0051] Workflow:

[0052] Turn on the power switch and select the drain pipe model. Different models of drain pipes have different lengths, resulting in different positioning positions for the positioning components and different movement positions for the product positioning plate 36. Manually place the drain pipes in groups of four on the carrier, aligning one end of each pipe with the product positioning plate 36. Then, feed the pipes. Once all the sensors in the material-feeding direction of the cutting component detect the drain pipes, the chain drive module transports a group of drain pipes to the cutting module. The first cylinder 44 in the cutting module drives the lower positioning plate 48 downwards to position the drain pipes. The second cylinder and the third flagpole drive the upper and lower cutters to move towards each other, cutting off excess material. The waste is collected through the discharge chute. The cutting module resets, and the chain drive module 2 continues to move with the drain pipes. When the cutting module discharges material... When all the sensors in one direction detect the drain pipe, the chain drive module stops, and the marking module 5 activates. The marking module 5 first moves to the position of a drain pipe furthest from the feed end. The roller assembly below the rotating component moves upward, and the vertical straight module drives the pressure roller assembly and the inkjet printer assembly above to move downward. The roller assembly and pressure roller assembly clamp the drain pipe from above and below, and the transmission gear set drives the rollers to rotate, causing the drain pipe to rotate. Simultaneously, the downward-moving inkjet printer marks the rotating drain pipe, drawing a circle of marking lines on the outer circumference at different positions along the length of the drain pipe. The inkjet printer assembly and the rotating component then reset. After marking one drain pipe, the horizontal straight module drives the marking module to move horizontally to mark the second drain pipe, and so on until the fourth drain pipe is marked. The marking module resets, and the chain drive module 2 continues to drive, carrying the marked drain pipe to the unloading station, above the collection box. The drain pipe falls from the carrier into the collection box, completing the marking process.

Claims

1. A device for marking and cutting annular lines on automotive drain pipes, characterized in that, Includes a frame, and a chain drive module, a positioning module, a cutting module and a scribing module mounted on the frame; The chain drive module is used to transport the drainage pipes placed on it to each workstation; The positioning module is located at the feeding end of the chain drive module and is used to align one end of the drain pipe placed on the chain drive module. The cutting module is located on one side of the chain drive module and is used to cut off the excess part of one end of the misaligned drain pipe. The marking module is mounted across the chain drive module and marks lines on the outer periphery of the drain pipe.

2. The automotive drain pipe annular marking and cutting device according to claim 1, characterized in that, The marking module includes two sets of horizontal linear displacement modules, two sets of vertical linear displacement modules, several rotating components, and several inkjet printer components. A set of horizontal linear displacement modules is respectively arranged on opposite sides of the chain drive module, and the displacement direction of the horizontal linear displacement modules is parallel to the transmission direction of the chain drive module. A set of vertical linear displacement modules is mounted on each set of horizontal linear displacement modules. A first horizontal mounting plate is connected to the two sets of horizontal linear displacement modules, and a second horizontal mounting plate is connected to the two sets of vertical linear displacement modules. The vertical linear displacement modules drive the second horizontal mounting plates to move up and down, and the horizontal linear displacement modules drive the first horizontal mounting plates, the vertical linear displacement modules, and the second horizontal mounting plates to move horizontally. The rotating components include correspondingly arranged support roller groups and pressure roller groups. The support roller groups are mounted on the first horizontal mounting plates, and the pressure roller groups are disposed on the second horizontal mounting plates. The support roller groups can move horizontally along the first horizontal mounting plates and can move vertically relative to the first horizontal mounting plates; the pressure roller groups can move horizontally along the second horizontal mounting plates. The support roller assembly and the pressure roller assembly are used to clamp the drain pipe, and the support roller assembly is used to rotate the drain pipe; the inkjet printer assembly is mounted on the second horizontal mounting plate, and the inkjet printer assembly can be linearly displaced along the second horizontal mounting plate; the inkjet printer assembly is used to scribble lines on the rotating drain pipe.

3. The automotive drain pipe annular marking and cutting device according to claim 2, characterized in that, A fourth cylinder is mounted on the first horizontal mounting plate, and a fifth cylinder is provided on the telescopic end of the fourth cylinder. A support block is provided on the telescopic end of the fifth cylinder. A support roller assembly is provided at one end of the support block, and the support roller assembly is driven to rotate by a transmission gear set provided on the support block. The support roller assembly includes two rollers arranged in parallel and spaced apart. The fourth cylinder extends and retracts along the length direction of the first horizontal mounting plate, and the fifth cylinder extends and retracts vertically along the length direction of the first horizontal mounting plate.

4. The automotive drain pipe annular marking and cutting device according to claim 2, characterized in that, A linear guide slider structure is mounted on the second horizontal mounting plate. A screw mechanism is connected to the slider of the linear guide slider structure. A pressure roller mounting plate is mounted on the slider. The pressure roller assembly is mounted on the lower side of the pressure roller mounting plate. The screw mechanism drives the slider to move linearly along the length direction of the second horizontal mounting plate, carrying the pressure roller assembly.

5. The automotive drain pipe annular marking and cutting device according to claim 1, characterized in that, The cutting module includes a guide post, an upper cutting blade assembly, a lower cutting blade assembly, and a cutting positioning assembly. The upper cutting blade assembly, lower cutting blade assembly, and cutting positioning assembly are respectively mounted on the guide post. The upper cutting blade assembly and lower cutting blade assembly are located above and below the drain pipe, respectively, and the upper cutting blade assembly and lower cutting blade assembly can move vertically in opposite directions or away from each other. The cutting positioning assembly is located on the side of the upper cutting blade assembly and lower cutting blade assembly facing the chain drive module, and the cutting positioning assembly moves vertically to position the drain pipe to be cut.

6. The automotive drain pipe annular marking and cutting device according to claim 5, characterized in that, The upper cutting blade assembly includes a second cylinder, an upper cutting blade mounting plate, and an upper cutting blade; a top mounting plate is installed on the top of the guide post, the second cylinder is mounted on the top mounting plate, the upper cutting blade mounting plate is sleeved on the guide post, and the upper cutting blade is mounted on one end of the upper cutting blade mounting plate with its cutting edge facing upwards; the telescopic rod of the second cylinder is connected to the upper cutting blade mounting plate; the lower cutting blade assembly includes a third cylinder, a lower cutting blade mounting plate, and a lower cutting blade; The third cylinder is mounted on the frame, the lower cutter mounting plate is sleeved on the guide post, the lower cutter is mounted on one end of the lower cutter mounting plate with the blade facing upwards; the telescopic rod of the third cylinder is connected to the lower cutter mounting plate; the upper cutter and the lower cutter are configured with an interference fit when cutting.

7. The automotive drain pipe annular marking and cutting device according to claim 6, characterized in that, The lower cutter is slidably mounted on the lower cutter mounting plate. A retaining spring is provided on the side of the lower cutter away from the upper cutter. The retaining spring is in a compressed state. The bottom of the lower cutter on the same side as the upper cutter is pressed against by an adjustable clamping rod. A guide angle is provided on the upper end of the lower cutter facing the upper cutter. When cutting, the lower end of the upper cutter abuts against the guide angle and makes close contact with the lower cutter.

8. The automotive drain pipe annular marking and cutting device according to claim 7, characterized in that, The chain drive module includes two parallel drive shafts and driven shafts, with several chains spaced apart along their length. Each pair of chains forms a chain group, and several carriers are spaced apart along the transmission direction on each chain group, forming rows of carrier groups perpendicular to the chain transmission direction. Each carrier group holds a drain pipe. The drive shaft is connected to a drive motor via the chains.

9. The automobile drain pipe annular marking and cutting device according to claim 8, characterized in that, It also includes several chain support components for supporting the chain.

10. The automobile drain pipe annular marking and cutting device according to claim 1, characterized in that, The positioning module includes a transmission belt and a linear guide rail located on one side of the feeding end of the chain drive module. The linear guide rail is located above the transmission belt. The transmission belt is connected to a slider on the linear guide rail via a belt connecting plate. A product positioning plate is provided on the slider. The product positioning plate spans across the chain at the feeding end of the chain drive module. The transmission belt drives the product positioning plate to move along the chain at the feeding end of the chain drive module.

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