A production process for pipe joint with built-in copper pipe fittings

Abstract

The present invention provides a production process for a pipe joint with a built-in copper pipe fitting, which belongs to the technical field of pipe joint production. It solves the problems of easy breakage, low efficiency, and lack of cleaning and polishing functions in the existing pipe joint expansion production. The present invention controls the actions of each mechanism in step one to correspond to the pipe joints with built-in copper pipe fittings of different diameters and lengths; puts the pipe joint into the conveying bucket in step two, and lifts the pipe joint with a lifting track; moves the lifted pipe joint to the sidemost discharge end of the feeding bracket through the conveying mechanism in step three; ...; cleans and polishes the pipe joint through the polishing and cleaning mechanism in step nine, and finally delivers it from the discharge hopper. The present invention can realize stable intermittent conveying of pipe joints, can stably limit the expansion length of the pipe joint, and at the same time meet the expansion of both ends of the pipe joint, and realizes the expansion of pipe joints of different diameters and specifications, is easy to adjust, and has a full-process assembly line operation with high efficiency and good effect.

Description

Technical Field

[0001] The invention belongs to the technical field of pipe joint production, and relates to a production process of a pipe joint with built-in copper pipe fittings. Background Art

[0002] Copper tube is also called red copper tube. It is a kind of non-ferrous metal tube, which is a pressed and drawn seamless tube. Copper tube has good electrical and thermal conductivity. Therefore, copper tube is usually built into some equipment to transport heat-conducting or heat-dissipating media to dissipate heat or transfer heat.

[0003] Copper pipe parts are widely used in daily life and industry. Pipe connection accessories are constantly being innovated and improved with the development of technology. Today's copper pipe connectors have complex structures and high requirements for size and hole accuracy. Traditional processing technology involves multiple positioning, which results in positioning errors and fails to meet design requirements. The processing technology is cumbersome, the pass rate is low, and the production efficiency is low.

[0004] The pipe fitting is a hardware used to connect two copper pipes. Its production process includes rolling, extrusion, drawing, forging, (threading), grinding, pipe expansion, painting, etc. Among them, pipe expansion is an effective processing method to make the two ends of the pipe fitting meet the connection of different diameters.

[0005] However, the current production process on the market generally directly inserts the expansion die head into the pipe joint, which is prone to rupture and lacks an efficient assembly line expansion method. At the same time, the connector needs to be removed and rotated before expanding the other end, which wastes working time and leads to low production efficiency. Moreover, the pipe cannot be effectively immersed, rinsed and polished after expansion. Summary of the invention

[0006] The purpose of the present invention is to address the above-mentioned problems in the existing technology and propose a production process for pipe joints with built-in copper pipe fittings. The technical problem to be solved by the invention is: how to achieve fast and efficient pipe expansion production of pipe joints, effectively prevent cracking, have cleaning and polishing functions, and meet the requirements of efficient production on the assembly line.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] A production process for a pipe joint with a built-in copper pipe fitting, characterized in that the production process steps are as follows:

[0009] Step 1: According to the specifications of the pipe joints of the built-in copper pipe fittings of different diameters and lengths, select the height specifications of the lifting plate and the adjusting baffle, adjust the distance between the double-axis feeding racks, adjust the length of the adjusting rod, select the corresponding specifications of the pipe expanding rotor, install them on the pipe expanding motor in sequence, and the electric control box controls the lifting motor to drive the screw to rotate through the pulley pair, and the screw drives the fixed plate to move up and down along the lifting slide rail, which can drive the pipe expanding motor to lift and adjust the position to meet the expansion of pipe joints of different diameters, and make the pipe joint with the smallest diameter face the rotating clamping mechanism, set the working time and other information parameters of each mechanism through the electric control box, and inject different types of cleaning agents and polishing agents into the cleaning box and the filter and dosing box;

[0010] Step 2: Put the pipe joint into the conveying bucket, and the electric control box controls the conveying motor to drive the lifting crawler to move intermittently, so that each time it moves, one pipe joint is lifted and conveyed;

[0011] Step three, the pipe joint is lifted by step two and falls from the lower hopper of the conveying mechanism onto the double-axis feeding rack at the feeding end of the feeding rack on the side, and the electric control box controls the output shaft of the feeding motor to drive one of the rotating shafts to rotate intermittently, thereby driving the feeding gear on the rotating shaft to rotate intermittently, thereby driving the feeding chain to move intermittently, that is, driving the pipe joint carried on the double-axis feeding rack to move intermittently to the side discharge end of the feeding rack;

[0012] Step 4: The electric control box controls the limit motor to drive the cam to rotate, thereby lifting the lifting rod upward and adjusting the lifting of the limit baffle. The electric control box controls the telescopic end of the electric push rod to extend, driving the push plate to push out, and pushing the pipe joint from the double-axis feeding rack to the slideway of the rotating clamping mechanism. The end of the pipe joint contacts the limit baffle. The electric control box controls the electric rotating clamping seat to drive the clamping limit claw to close and clamp the pipe joint. The electric control box controls the limit motor to drive the cam to continue to rotate. The reset spring ensures rapid reset, and the limit baffle is retracted.

[0013] Step 5: The electric control box controls the two longitudinal motors to work synchronously. The longitudinal motor drives the longitudinal pulley on the same side through the pulley pair to move along the longitudinal slide rail on the same side to feed, expand the hole and quickly retract. The transverse slide rail can move longitudinally with the two longitudinal slides. The electric control box controls the transverse motor to work synchronously. The transverse motor drives the transverse pulley through the pulley pair to move along the transverse slide rail to switch in sequence and gradually increase the hole expansion.

[0014] Step 6. After the hole expansion at one end of the pipe joint is completed, the telescopic end of the electric push rod drives the push plate to retract, and the electric control box controls the two longitudinal motors to work synchronously to retreat and reset the electric rotary clamping seat to drive the pipe joint to rotate, and then control the clamping limit claw to release the clamping pipe joint. The electric control box controls the limit motor to drive the cam to rotate, thereby lifting the lifting rod upward and adjusting the lifting of the limit baffle. The electric control box controls the telescopic end of the electric push rod to extend, drive the push plate to push out, and push the end of the pipe joint to contact the limit baffle. The electric control box controls the electric rotary clamping seat to drive the clamping limit claw to close and clamp the pipe joint. The electric control box controls the limit motor to drive the cam to continue to rotate, and the reset spring ensures rapid reset, and the limit baffle is retracted.

[0015] Step 7: The electric control box controls the two longitudinal motors to work synchronously. The longitudinal motor drives the longitudinal pulley on the same side through the pulley pair to move along the longitudinal slide rail on the same side to feed, expand the hole and quickly retract. The transverse slide rail can move longitudinally with the two longitudinal slides. The electric control box controls the transverse motor to work synchronously. The transverse motor drives the transverse pulley through the pulley pair to move along the transverse slide rail to switch in sequence and gradually increase the hole expansion.

[0016] Step 8: After the expansion holes at both ends of the pipe joint are completed, the electric control box controls the clamping limit claws to release the clamping pipe joint, and the electric control box controls the telescopic end of the electric push rod to continue to extend, driving the push plate to push out, pushing the pipe joint out of the slideway, and falling into the cleaning box from the drop port;

[0017] Step nine, the electric cleaning roller is immersed in roller washing and polishing, the electronic control box controls the cleaning motor to drive the perforated crawler to move, thereby driving each lifting plate to drive one pipe joint to output each time, the electronic control box controls the spray pump to filter the cleaning agent and polishing agent inside the dosing box, inject them into the spray pipe, and spray wash a pipe joint on each lifting plate for the second time, then drain the water and send it out through the discharge hopper.

[0018] Compared with the prior art, the pipe joint production process of the built-in copper pipe fitting has the following advantages:

[0019] This production process can achieve stable intermittent delivery of pipe joints, can stably limit the expansion length of the pipe joints, and at the same time meet the needs of expanding the pipes at both ends of the pipe joints, and can achieve the expansion of pipe joints of different diameters. It is easy to adjust, and the whole process is assembly line operation, with high efficiency and good results. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a flow chart of the production process of the present invention.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the production device in the present invention.

[0022] Figure 3It is a three-dimensional structural schematic diagram of the feeding and expanding mechanism and the rotating clamping mechanism in the production device.

[0023] Figure 4 It is a schematic diagram of the front structure of the limiting mechanism in this production device.

[0024] Figure 5 It is a schematic diagram of the rear structure of the limiting mechanism in this production device.

[0025] Figure 6 It is a three-dimensional structural diagram of the feeding mechanism and the pushing mechanism in this production device.

[0026] Figure 7 It is a structural schematic diagram of the conveying mechanism in this production device.

[0027] Figure 8 It is a schematic diagram of the upper three-dimensional structure of the polishing and cleaning mechanism in this production device.

[0028] Fig. 9 It is a schematic diagram of the lower three-dimensional structure of the polishing and cleaning mechanism in this production device.

[0029] In the figure, 1, conveying mechanism; 101, bucket frame; 102, conveying bucket; 103, conveying motor; 104, lifting frame; 105, lifting crawler; 106, lower hopper; 107, adjusting baffle; 2, feeding mechanism; 201, feeding bracket; 202, feeding gear; 203, feeding motor; 204, feeding chain; 205, double-axis feeding frame; 3, pipe joint; 4, pushing mechanism; 401, pushing mounting plate; 402, electric push rod; 403, pushing plate; 5, rotating clamping mechanism; 501, electric rotating clamping seat; 502, slideway; 503, clamping limit claw; 6, limit mechanism; 601, main frame plate; 602, limit motor; 603, limit baffle; 604, lifting rod; 605, block; 606, reset spring; 607, cam; 608, adjusting rod; 7, Polishing and cleaning mechanism; 701, cleaning bracket; 702, cleaning box; 703, perforated partition; 704, injection pump; 705, perforated track; 706, lifting plate; 707, spray pipe; 708, filter and dosing box; 709, cleaning motor; 710, discharge hopper; 711, spray pump; 712, drain valve; 8, feed expansion mechanism; 801, base frame; 802, longitudinal slide rail; 8 03. Longitudinal pulley; 804. Blanking port; 805. Longitudinal motor; 806. Transverse slide rail; 807. Transverse pulley; 808. Transverse slide seat; 809. Transverse motor; 810. Lifting motor; 811. Pulley pair; 812. Lifting slide rail; 813. Longitudinal slide seat; 814. Tube expansion motor; 815. Fixed plate; 816. Tube expansion rotor; 817. Mounting frame; 9. Electric control box. DETAILED DESCRIPTION

[0030] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0031] like Figure 1 As shown, this embodiment provides a production process for a pipe joint with a built-in copper pipe fitting, and the production process steps are as follows:

[0032] Step 1: According to the specifications of the pipe joints 3 with built-in copper pipes of different diameters and lengths, select the height specifications of the lifting plate 706 and the adjusting baffle 107, adjust the distance between the dual-axis feeding racks 205, adjust the length of the adjusting rod 608, select the corresponding specifications of the pipe expansion rotary head 816, and install them on the pipe expansion motor 814 in sequence, and the electric control box 9 controls the lifting motor 810 to drive the screw to rotate through the pulley pair 811, and the screw drives the fixed plate 815 to move up and down along the lifting rail 812, which can drive the pipe expansion motor 814 to lift and adjust the position to meet the expansion of the pipe joints 3 with different diameters, and make the pipe joint 3 with the smallest diameter face the rotating clamping mechanism 5, set the working time and other information parameters of each mechanism through the electric control box 9, and inject different types of cleaning agents and polishing agents into the cleaning box 702 and the filter and dosing box 708;

[0033] Step 2: put the pipe joint 3 into the conveying bucket 102, and the electric control box 9 controls the conveying motor 103 to drive the lifting crawler 105 to move intermittently, so that each time it moves, one pipe joint 3 is lifted and conveyed;

[0034] Step 3: the pipe joint 3 is lifted by step 2 and falls from the lower hopper 106 of the conveying mechanism 1 onto the double-axis feeding rack 205 at the feeding end of the feeding rack 201 at the most side. The electric control box 9 controls the output shaft of the feeding motor 203 to drive one of the rotating shafts to rotate intermittently, thereby driving the feeding gear 202 on the rotating shaft to rotate intermittently, thereby driving the feeding chain 204 to move intermittently, that is, driving the pipe joint 3 carried on the double-axis feeding rack 205 to move intermittently to the most side discharge end of the feeding rack 201.

[0035] Step 4: The electric control box 9 controls the limit motor 602 to drive the cam 607 to rotate, thereby lifting the lifting rod 604 upwards and adjusting the lifting of the limit baffle 603. The electric control box 9 controls the telescopic end of the electric push rod 402 to extend, driving the push plate 403 to push out, and pushing the pipe joint 3 from the double-axis feeding rack 205 to the slideway 502 of the rotating clamping mechanism 5. The end of the pipe joint 3 contacts the limit baffle 603. The electric control box 9 controls the electric rotating clamping seat 501 to drive the clamping limit claw 503 to close and clamp the pipe joint 3. The electric control box 9 controls the limit motor 602 to drive the cam 607 to continue to rotate, and the reset spring 606 ensures rapid reset, and the limit baffle 603 is retracted.

[0036] Step 5: The electric control box 9 controls the two longitudinal motors 805 to work synchronously. The longitudinal motor 805 drives the longitudinal pulley 803 on the same side to move along the longitudinal slide rail 802 on the same side through the pulley pair 811 to feed the hole and quickly retract. The transverse slide rail 806 can move longitudinally with the two longitudinal slide seats 813. The electric control box 9 controls the transverse motor 809 to work synchronously. The transverse motor 809 drives the transverse pulley 807 to move along the transverse slide rail 806 through the pulley pair 811 to switch in sequence and gradually increase the hole expansion.

[0037] Step 6, after the expansion of one end of the pipe joint 3 is completed, the telescopic end of the electric push rod 402 drives the push plate 403 to retract, and the electric control box 9 controls the two longitudinal motors 805 to work synchronously to retreat and reset, and the electric rotary clamping seat 501 drives the pipe joint 3 to rotate 180 degrees, and then controls the clamping limit claw 503 to release the clamping pipe joint 3, and the electric control box 9 controls the limit motor 602 to drive the cam 607 to rotate, thereby lifting the lifting rod 604 upwards, adjusting the lifting of the limit baffle 603, and the electric control box 9 controls the telescopic end of the electric push rod 402 to extend, drive the push plate 403 to be pushed out, and push the end of the pipe joint 3 to contact the limit baffle 603, and the electric control box 9 controls the electric rotary clamping seat 501 to drive the clamping limit claw 503 to close and clamp the pipe joint 3, and the electric control box 9 controls the limit motor 602 to drive the cam 607 to continue to rotate, and the reset spring 606 ensures rapid reset, and the limit baffle 603 is retracted;

[0038] Step 7: The electric control box 9 controls the two longitudinal motors 805 to work synchronously. The longitudinal motor 805 drives the longitudinal pulley 803 on the same side to move along the longitudinal slide rail 802 on the same side through the pulley pair 811 to feed the hole and quickly retract. The transverse slide rail 806 can move longitudinally with the two longitudinal slide seats 813. The electric control box 9 controls the transverse motor 809 to work synchronously. The transverse motor 809 drives the transverse pulley 807 to move along the transverse slide rail 806 through the pulley pair 811 to switch in sequence and gradually increase the hole expansion.

[0039] Step 8: After the expansion of both ends of the pipe joint 3 is completed, the electric control box 9 controls the clamping limit claw 503 to release the clamping pipe joint 3, and the electric control box 9 controls the telescopic end of the electric push rod 402 to continue to extend, driving the push plate 403 to push out, pushing the pipe joint 3 out of the slideway 502, and falling from the drop port 804 into the cleaning box 702;

[0040] Step nine, the electric cleaning roller is immersed in the roller for washing and polishing, the electrical control box 9 controls the cleaning motor 709 to drive the perforated crawler 705 to move, thereby driving each lifting plate 706 to drive one pipe joint 3 to output each time, the electrical control box 9 controls the spray pump 711 to filter the cleaning agent and polishing agent inside the dosing box 708, inject it into the spray pipe 707, and spray wash a pipe joint 3 on each lifting plate 706 for the second time, and then drain the water and send it out through the discharge hopper 710.

[0041] This production process can achieve stable intermittent delivery of pipe joints, can stably limit the expansion length of the pipe joints, and at the same time meet the needs of expanding the pipes at both ends of the pipe joints, and can achieve the expansion of pipe joints of different diameters. It is easy to adjust, and the whole process is assembly line operation, with high efficiency and good results.

[0042] like Figure 2-Figure 9 As shown, the present embodiment further provides a production device capable of realizing the production process of the pipe joint with the built-in copper pipe fittings, comprising a feeding and expanding mechanism 8 and a rotating clamping mechanism 5 and a limiting mechanism 6 located on the upper side thereof, the feeding and expanding mechanism 8 comprising a base frame 801 and a mounting frame 817, the mounting frame 817 being fixed on the base frame 801, a blanking opening 804 being provided on the base frame 801, the rotating clamping mechanism 5 being arranged in the upper middle part of the mounting frame 817, the limiting mechanism 6 being arranged in the rear middle part of the mounting frame 817, the limiting mechanism 6 being directly opposite to the blanking opening 804, a feeding mechanism 2 and a conveying mechanism 1 being arranged in front of the conveying mechanism 1, the conveying mechanism 1 being located at the feeding end of the feeding mechanism 2, the discharging end of the feeding mechanism 2 being provided with a pushing mechanism 4, the pushing mechanism 4 being located directly in front of the rotating clamping mechanism 5, a polishing and cleaning mechanism 7 being arranged below the conveying mechanism 1, the polishing and cleaning mechanism 7 being located below the blanking opening 804, and an electric control box 9 being arranged on the polishing and cleaning mechanism 7;

[0043] According to the specifications of the pipe joints 3 with built-in copper pipes of different diameters, the relevant parameter specifications of the conveying mechanism 1, the feeding mechanism 2 and the polishing and cleaning mechanism 7 are adjusted, the working time and other information of each mechanism are set through the electric control box 9, the cleaning agent and the polishing agent are injected into the polishing and cleaning mechanism 7, the pipe joint 3 is placed in the conveying mechanism 1, the conveying mechanism 1 intermittently conveys the pipe joint 3 to the feeding end of the feeding mechanism 2, the feeding mechanism 2 intermittently conveys the pipe joint 3 to the discharging end, the pushing mechanism 4 pushes the pipe joint 3 to the rotating clamping mechanism 5, and contacts with the limiting mechanism 6 to limit the position of the pipe joint 3, and then the limiting mechanism 6 is retracted, and the feeding expansion mechanism 8 sequentially expands the pipe joint 3. The pipe joint 3 is expanded stably to avoid rupture of the pipe joint 3. After the expansion is completed, the rotating clamping mechanism 5 drives the pipe joint 3 to rotate 180 degrees, and then releases the clamping, the limiting mechanism 6 rises again, and the pushing mechanism 4 pushes the pipe joint 3 to contact the limiting mechanism 6, and the rotating clamping mechanism 5 limits the position of the pipe joint 3 again. The feeding expansion mechanism 8 rotates and expands the pipe joint 3 again in sequence. After the expansion of the pipe joint 3 is completed, the limiting mechanism 6 is retracted, the rotating clamping mechanism 5 is unfolded, and the pushing mechanism 4 pushes the pipe joint 3 out of the rotating clamping mechanism 5, and falls into the polishing and cleaning mechanism 7 from the blanking port 804 for immersion polishing, and then is sprayed and sent out in sequence.

[0044] The feeding and expanding tube mechanism 8 also includes two longitudinal slide rails 802, and the two longitudinal slide rails 802 are respectively fixed on both sides of the base frame 801, and longitudinal slide seats 813 are slidably provided on the two longitudinal slide rails 802, and longitudinal slide seats 813 are provided with longitudinal pulleys 803 and longitudinal motors 805. The longitudinal pulleys 803 and the output shafts of the longitudinal motors 805 are connected through a pulley pair 811, and the longitudinal pulleys 803 are in contact with the top of the longitudinal slide rail 802 on the same side; the electric control box 9 controls the two longitudinal motors 805 to work synchronously, and the longitudinal motor 805 drives the longitudinal pulley 803 on the same side to move along the top of the longitudinal slide rail 802 on the same side through the pulley pair 811 to perform feeding, expanding holes and rapid retraction.

[0045] The feeding and expanding tube mechanism 8 also includes a transverse slide rail 806, which is fixed between two longitudinal slide seats 813. A transverse slide seat 808 is slidingly provided on the transverse slide rail 806. A transverse pulley 807 and a transverse motor 809 are provided on the transverse slide seat 808. The transverse pulley 807 and the output shaft of the transverse motor 809 are connected through a pulley pair 811. The transverse pulley 807 abuts against the top of the longitudinal slide rail 802. The transverse slide rail 806 can move longitudinally with the two longitudinal slide seats 813. The electric control box 9 controls the transverse motor 809 to work synchronously. The transverse motor 809 drives the transverse pulley 807 to move along the transverse slide rail 806 through the pulley pair 811, which is used to switch in sequence to gradually increase the expansion hole.

[0046] A lifting rail 812 is fixed on the transverse slide 808, a lifting motor 810 is fixed on the lifting rail 812, a screw is rotatably provided on the lifting rail 812, the output shaft of the lifting motor 810 and the screw are connected by a pulley pair 811, a fixed plate 815 is slidably provided on the front side of the lifting rail 812, the fixed plate 815 and the screw are connected by a transmission, the fixed plate 815 is provided with a plurality of equally spaced expansion motors 814, and the output shaft of the expansion motor 814 is provided with expansion motors 814 with successively increasing diameters. The lifting rail 812 can move laterally with the transverse slide 808. The electric control box 9 controls the lifting motor 810 to drive the screw to rotate through the pulley pair 811. The screw drives the fixed plate 815 to move up and down along the lifting rail 812, thereby driving the pipe expansion motor 814 to move up and down to meet the expansion of pipe joints 3 with different diameters. The electric control box 9 controls the output shaft of the pipe expansion motor 814 to drive the pipe expansion rotating head 816 to rotate, and move forward while rotating, so as to expand the pipe stably in sequence to avoid tearing of the pipe joint 3.

[0047] The limiting mechanism 6 includes a main frame plate 601, which is fixed to the middle of the rear side of the mounting frame 817. A limiting motor 602 and a stopper 605 are fixed to the main frame plate 601. The limiting motor 602 and the stopper 605 are respectively located on both sides of the main frame plate 601. A cam 607 is fixed to the output shaft of the limiting motor 602. The cam 607 and the stopper 605 are located on the same side of the main frame plate 601. A lifting rod 604 is slidably arranged inside the stopper 605. The lower end of the lifting rod 604 abuts against the cam 607. A return spring 606 is sleeved on the lifting rod 604. The upper end of the reset spring 606 abuts against the stopper 605, and an adjusting rod 608 perpendicular to the lifting rod 604 is provided above the lifting rod 604, and a limit baffle 603 is fixed to the end of the adjusting rod 608; the electric control box 9 controls the limit motor 602 to drive the cam 607 to rotate, thereby lifting the lifting rod 604 upward, and the reset spring 606 ensures rapid reset. The lifting rod 604 drives the adjusting rod 608 to rise and fall. According to the length of the pipe joint 3, the length of the adjusting rod 608 is adjusted, that is, the position of the limit baffle 603 is adjusted to meet the pipe expansion operation of pipe joints 3 of different lengths.

[0048] The rotating clamping mechanism 5 includes an electric rotating clamping seat 501, which is fixed in the upper middle part of the mounting frame 817. A slideway 502 is provided in the upper middle part of the electric rotating clamping seat 501. A plurality of groups of symmetrically arranged clamping limit claws 503 are provided above the electric rotating clamping seat 501. The electric control box 9 controls the electric rotating clamping seat 501 to drive the clamping limit claws 503 to open and close, thereby satisfying the loosening and clamping of the pipe joint 3. The slideway 502 facilitates the pipe joint 3 to slide along it.

[0049] The feeding mechanism 2 includes a feeding bracket 201, both ends of the feeding bracket 201 are rotatably provided with a rotating shaft, two feeding gears 202 are fixed on the rotating shaft, a feeding motor 203 is fixed to the side end of the feeding bracket 201, the output shaft of the feeding motor 203 is transmission-connected to one of the rotating shafts, a feeding chain 204 is provided on the feeding gears 202 at both ends, a plurality of equidistantly distributed double-axis feeding racks 205 are provided on the feeding chain 204, and a pipe joint 3 is carried on the double-axis feeding rack 205, and a pushing mechanism 4 includes a pushing mounting plate 401 and an electric push rod 402, the pushing mounting plate 401 is fixed to the side end of the feeding bracket 201, and the electric push rod 402 is fixed to the pushing mounting plate Above the mounting plate 401, a push plate 403 is fixed to the telescopic end of the electric push rod 402, and the push plate 403 is directly opposite to the rotating clamping mechanism 5; the electric control box 9 controls the output shaft of the feeding motor 203 to drive one of the rotating shafts to rotate intermittently, thereby driving the feeding gear 202 on the rotating shaft to rotate intermittently, thereby driving the feeding chain 204 to move intermittently, that is, driving the pipe joint 3 carried on the double-axis feeding rack 205 to move intermittently, and move to the sidemost discharge end of the feeding bracket 201, the electric control box 9 controls the telescopic end of the electric push rod 402 to extend, drive the push plate 403 to be pushed out, and push the pipe joint 3 from the double-axis feeding rack 205 to the slideway 502 of the rotating clamping mechanism 5.

[0050] The conveying mechanism 1 includes a bucket frame 101 and a lifting frame 104, a conveying bucket 102 is fixed on the bucket frame 101, a lifting crawler 105 is provided between the lifting frame 104 and the conveying bucket 102, a conveying motor 103 is provided on the lifting crawler 105, the output shaft of the conveying motor 103 is transmission-connected to the lifting crawler 105, a lower hopper 106 is provided at the discharge end of the lifting crawler 105, and a number of equally spaced and evenly distributed adjusting baffles 107 are provided on the crawler of the lifting crawler 105; the electric control box 9 controls the conveying motor 103 to drive the lifting crawler 105 to move intermittently, so that each time an adjusting baffle 107 is moved, a pipe joint 3 is lifted, and a pipe joint 3 is conveyed, lifted to the discharge end of the lifting crawler 105, and falls out of the lower hopper 106 and falls on the double-axis feeding frame 205 at the sidemost feeding end of the feeding mechanism 2.

[0051] The polishing cleaning mechanism 7 includes a cleaning bracket 701, on which a cleaning box 702 and a perforated crawler 705 are sequentially arranged, a filtering and adding box 708 is arranged on the outside of the cleaning box 702, a perforated partition 703 is arranged inside the cleaning box 702, a drain valve 712 is arranged below the cleaning box 702, an electric control box 9 is fixed on the outside of the cleaning bracket 701, a liquid injection pump 704 and a spray pump 711 are fixed on the inside of the cleaning bracket 701, a spray pipe 707 is arranged above the lifting section of the perforated crawler 705, the water inlet end of the spray pump 711 is connected to the filtering and adding box 708, the water outlet end of the spray pump 711 is connected to the spray pipe 707, a cleaning motor 709 is arranged on the outside of the horizontal section of the perforated crawler 705, the cleaning motor 709 is connected to the perforated crawler 705 by transmission, and a plurality of equally spaced lifting plates 7 are arranged on the crawler of the perforated crawler 705 06. The feeding end of the perforated track 705 is located at the side end of the perforated partition 703, and the discharging end of the perforated track 705 is provided with a discharging hopper 710. An electric cleaning roller is rotated inside the cleaning box 702; cleaning agent and polishing agent are injected into the cleaning box 702 through the injection pump 704, and the filtering and adding box 708 add cleaning agent and polishing agent. The pipe joint 3 falls into the cleaning box 702 from the drop port 804, and the electric cleaning roller performs immersion roller washing and polishing. The electric control box 9 controls the cleaning motor 709 to drive the perforated track 705 to move, thereby driving each lifting plate 706 to drive one pipe joint 3 to be output each time, and the electric control box 9 controls the spray pump 711 to inject the cleaning agent and polishing agent in the filtering and adding box 708 into the spray pipe 707, and a pipe joint 3 on each lifting plate 706 is sprayed twice, and then drained and sent out through the discharging hopper 710.

[0052] In this embodiment, a heating air drying mechanism can also be provided on the perforated crawler 705 for rapid drying.

[0053] The production device realizes stable intermittent conveying of the pipe joint 3 by cooperating with the conveying mechanism 1 and the feeding mechanism 2, and the baffle 107 and the double-axis feeding rack 205 can meet the conveying of pipe joints 3 of different specifications; the feeding mechanism 2 cooperates with the pushing mechanism 4 to realize stable intermittent pushing of the pipe joint 3, and the pushing mechanism 4 cooperates with the limiting mechanism 6 to stably limit the expansion length of the pipe joint 3, and the adjustment is simple and convenient, and the pushing mechanism 4 can also feed; the rotating clamping mechanism 5 can stably clamp the pipe joint 3, and the rotating clamping mechanism 5 can rotate 180 degrees to meet the requirements of expanding the two ends of the pipe joint 3; the feeding expansion mechanism 8 cooperates with the rotating clamping mechanism 5 to realize the expansion of pipe joints 3 of different diameters, and the adjustment is convenient; the polishing and cleaning mechanism 7 can quickly soak, clean, polish, spray and drain the pipe joint 3, and the assembly line operation is efficient and effective.

[0054] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A production process for a pipe joint with a built-in copper pipe fitting, characterized in that: The production process steps are as follows: Step 1: According to the specifications of the pipe joints (3) of the built-in copper pipe fittings of different diameters and lengths, the height specifications of the lifting plate (706) and the adjusting baffle (107) are selected, the distance between the double-axis feeding rack (205) is adjusted, the length of the adjusting rod (608) is adjusted, and the corresponding specifications of the pipe expansion rotary head (816) are selected and installed on the pipe expansion motor (814) in sequence. The electric control box (9) controls the lifting motor (810) to drive the screw to rotate through the pulley pair (811), and the screw drives the fixed plate (815) to move up and down along the lifting slide rail (812), so as to drive the pipe expansion motor (814) to lift and adjust the position to meet the expansion of the pipe joints (3) of different diameters, and make the pipe joint (3) with the smallest diameter face the rotating clamping mechanism (5). The information parameters such as the working time of each mechanism are set through the electric control box (9), and different types of cleaning agents and polishing agents are injected into the cleaning box (702) and the filter and dosing box (708); Step 2: Put the pipe joint (3) into the conveying bucket (102), and the electric control box (9) controls the conveying motor (103) to drive the lifting crawler (105) to move intermittently, so that each time it moves, one pipe joint is lifted and conveyed; Step three, the pipe joint (3) is lifted by step two and falls from the lower hopper (106) of the conveying mechanism (1) onto the double-axis feeding rack (205) at the feeding end of the most side feeding rack (201). The pipe joint (3) falls from the lower hopper (106) of step three onto the double-axis feeding rack (205) at the feeding end of the most side feeding rack (201). The electric control box (9) controls the output shaft of the feeding motor (203) to drive one of the rotating shafts to rotate intermittently, thereby driving the feeding gear (202) on the rotating shaft to rotate intermittently, thereby driving the feeding chain (204) to move intermittently, that is, driving the pipe joint (3) carried on the double-axis feeding rack (205) to move intermittently to the most side discharge end of the feeding rack (201); Step 4: The electric control box (9) controls the limit motor (602) to drive the cam (607) to rotate, thereby lifting the lifting rod (604) upwards and adjusting the lifting of the limit baffle (603). The electric control box (9) controls the telescopic end of the electric push rod (402) to extend, driving the push plate (403) to be pushed out, and the pipe joint (3) is pushed from the double-axis feeding rack (205) to the slideway (502) of the rotating clamping mechanism (5). The end of the pipe joint (3) contacts the limit baffle (603). The electric control box (9) controls the electric rotating clamping seat (501) to drive the clamping limit claw (503) to close and clamp the pipe joint (3). The electric control box (9) controls the limit motor (602) to drive the cam (607) to continue to rotate. The reset spring (606) ensures rapid reset, and the limit baffle (603) is retracted. Step 5: The electric control box (9) controls the two longitudinal motors (805) to work synchronously. The longitudinal motor (805) drives the longitudinal pulley (803) on the same side to move along the longitudinal slide rail (802) on the same side through the pulley pair (811) to feed the hole and quickly retract. The transverse slide rail (806) can move longitudinally with the two longitudinal slide seats (813). The electric control box (9) controls the transverse motor (809) to work synchronously. The transverse motor (809) drives the transverse pulley (807) to move along the transverse slide rail (806) through the pulley pair (811) to switch in sequence and gradually increase the hole expansion; Step 6: After the expansion of one end of the pipe joint (3) is completed, the telescopic end of the electric push rod (402) drives the push plate (403) to retract, and the electric control box (9) controls the two longitudinal motors (805) to work synchronously to retract and reset the electric rotating clamping seat (501) to drive the pipe joint (3) to rotate (180) degrees, and then control the clamping limit claw (503) to release the clamping pipe joint (3), and the electric control box (9) controls the limit motor (602) to drive the cam (607) to rotate, thereby pushing up the lifting rod (604) and adjusting the limit stop. The plate (603) rises, the electric control box (9) controls the telescopic end of the electric push rod (402) to extend, drive the push plate (403) to push out, push the end of the pipe joint (3) to contact the limit baffle (603), the electric control box (9) controls the electric rotating clamping seat (501), drives the clamping limit claw (503) to close, clamps the pipe joint (3), the electric control box (9) controls the limit motor (602) to drive the cam (607) to continue to rotate, the reset spring (606) ensures rapid reset, and the limit baffle (603) is retracted; Step seven, the electric control box (9) controls the two longitudinal motors (805) to work synchronously, and the longitudinal motor (805) drives the longitudinal pulley (803) on the same side to move along the longitudinal slide rail (802) on the same side through the pulley pair (811) to feed the hole and quickly retract, and the transverse slide rail (806) can move longitudinally with the two longitudinal slide seats (813), and the electric control box (9) controls the transverse motor (809) to work synchronously, and the transverse motor (809) drives the transverse pulley (807) to move along the transverse slide rail (806) through the pulley pair (811) to switch in sequence and gradually increase the hole expansion; Step 8: After the expansion of the holes at both ends of the pipe joint (3) is completed, the electric control box (9) controls the clamping limit claw (503) to release the clamping pipe joint (3), and the electric control box (9) controls the telescopic end of the electric push rod (402) to continue to extend, driving the push plate (403) to push out, pushing the pipe joint (3) out of the slideway (502), and falling from the drop port (804) into the cleaning box (702); Step nine, the electric cleaning roller is immersed in the roller for washing and polishing, the electric control box (9) controls the cleaning motor (709) to drive the perforated crawler (705) to move, thereby driving each lifting plate (706) to drive one pipe joint (3) to output each time, the electric control box (9) controls the spray pump (711) to inject the cleaning agent and polishing agent inside the filter and dosing box (708) into the spray pipe (707), and sprays a pipe joint (3) on each lifting plate (706) for a second time, and then drains and sends it out through the discharge hopper (710).

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