CN201087169Y - Helical tube bender for energy saving lamp tube - Google Patents

Abstract

The utility model provides a spiral pipe bending machine of an energy saving lamp pipe, which comprises an double spiral pipe bending head which can elevate and rotate, the pipe bending machine also comprises a heating device for a preformed pipe of the lamp pipe, a first preformed pipe shifting device for conveying the preformed pipe into the heating device, a secondary preformed pipe shifting device for shifting one heating area of a preformed pipe self-heating device to the other heating area, a pipe bending clamp device for shifting the preformed pipe out of the heating device to the spiral pipe bending head to perform pipe bending, and a drawing-out device for shifting the formed preformed pipe out of the pipe bending machine; the heating device adopts a vertical type heating device, the first preformed pipe shifting device is arranged above the vertical type heating device, the double spiral pipe bending head is arranged below the heating device, and the first preformed pipe shifting device, the secondary preformed pipe shifting device, the pipe bending clamp device and the drawing-out device are respectively provided with left clamps and right clamps which are matched with the left ends and the right ends of the preformed pipes. The spiral pipe bending machine of the energy saving lamp pipe provided by the utility model can perform mechanized pipe bending of the energy saving lamp pipe, reduce the labor intensity of operators, and enhance the product quality and the production efficiency.

Description

Energy-saving lamp tube spiral tube bending machine

technical field

The utility model relates to a manufacturing mechanical device of an energy-saving lamp tube, in particular to a manufacturing mechanical device of a spiral energy-saving lamp tube.

Background technique

At present, the bending operation of the spiral energy-saving lamp tube is performed manually, and the operator needs to heat the blank tube in a heating furnace, and then bend the blank tube into shape on a spiral bending mold. In this process, the operator is working in a heated environment, especially in summer, the working environment is harsh, which has a great impact on the health of the operator. Moreover, the various processes of pipe bending are completed by manual operation, which is random and the quality is high. Unstable and difficult to control.

Contents of the invention

The technical problem to be solved by the utility model is to provide an energy-saving lamp tube spiral bending machine capable of mechanized energy-saving lamp tube spiral bending. For this reason, the utility model adopts the following technical solutions: it includes a double-helix pipe bending head that can be lifted and rotated, and the pipe bending machine also includes a heating device for the lamp tube blank tube, and a first-stage blank tube that sends the blank tube into the heating device. Tube shifting device, secondary tube shifting device for moving the billet tube from one heating area to another heating area in the heating device, pipe bending clamp for moving the billet tube out of the heating device to the spiral pipe bending head for pipe bending device, the pulling device that moves the formed blank tube out of the pipe bender; the heating device is a vertical heating device, the first-stage blank tube shifting device is above the vertical heating device, and the double helix pipe bending The head is below the heating device, and the first-stage billet tube shifting device, the second-stage billet tube shifting device, the bending clamp device, and the pulling device are respectively equipped with left clamps and right clamps that cooperate with the left and right ends of the billet tube. clamp. Due to the adoption of the technical scheme of the utility model, the energy-saving lamp tube spiral bending machine provided by the utility model can perform mechanized tube bending of energy-saving lamp tubes, reduce the labor intensity of operators, and improve product quality and production efficiency .

Description of drawings

Fig. 1 is a schematic front view of an embodiment of the present invention.

Fig. 2 is a schematic side view of the embodiment shown in Fig. 1 .

Fig. 3 is a schematic view of the secondary blank tube shifting device of the embodiment shown in Fig. 1 viewed from the side of the pipe bender.

Fig. 4 is a schematic diagram of the secondary blank tube shifting device of the embodiment shown in Fig. 1 viewed from the front of the pipe bender.

Fig. 5 is a schematic view of the embodiment shown in Fig. 1 after the pulling device is removed, viewed from the front of the pipe bending machine, to show the overall structure of the pipe bending clamp device.

Fig. 6 is a top view of an embodiment of the bent pipe clamp device provided by the present invention.

Fig. 7 is an enlarged schematic view of the embodiment of the pipe bending clamp device provided by the present invention, viewed from the front of the pipe bender.

FIG. 8 is a side view of FIG. 7 .

Fig. 9 is a schematic diagram of an embodiment of the pulling device provided by the present invention viewed from the front of the pipe bender.

Fig. 10 is a schematic diagram of an embodiment of the pulling device provided by the present invention viewed from the side of the pipe bender.

Fig. 11 is a schematic view of the embodiment of the pulling device provided by the present invention after the bracket is rotated, viewed from the side of the pipe bender.

Fig. 12 is a schematic diagram of the bracket rotation structure of the pull-out device provided by the present invention.

Fig. 13 is a schematic diagram of the control device provided by the present invention.

Fig. 14 is a schematic diagram of the heating device and the first-stage billet pipe shifting device provided by the present invention, viewed from the side of the pipe bending machine.

Detailed ways

With reference to accompanying drawing 1,2. The utility model includes a double-helix pipe bending head 50 that can be lifted and rotated. The pipe bending machine also includes a heating device 200 for the lamp tube blank tube, a first-stage blank tube shifting device 300 for sending the blank tube into the heating device, and a The billet pipe moves from one heating area in the heating device to the secondary billet shifting device 400 in another heating area, the pipe bending clamp device 500 that moves the billet out of the heating device to the spiral pipe bender for pipe bending, and the forming The final blank tube is moved out of the pulling device 600 of the pipe bender; the heating device is a vertical heating device, the first-stage blank tube shifting device is above the vertical heating device, and the double helix pipe bending head is in the heating Below the device, the primary billet tube shifting device, the secondary billet tube shifting device, the bending clamp device, and the pulling device are respectively provided with a left clamp and a right clamp that cooperate with the left end and the right end of the blank tube.

Refer to accompanying drawing 14. The heating device 200 of the pipe bending machine can be set as a vertical openable oven. The reference numeral 18 is the oven precursor, the reference numeral 22 is the rear body of the oven, and the reference numeral 21 is the left and right fixing plates of the oven precursor. It is connected on the frame, and reference numeral 23 is the oven rear body positioning plate, and reference numeral 7 is the driving cylinder of the opening and closing oven connected with the oven rear body positioning plate 23. Heating zones with different powers are set in the oven, the one near the top is the preheating zone, the one near the bottom is the main heating zone, and there are corresponding billet tube placement positions 20 in the preheating zone and billet tube placement positions 25 in the main heating zone. The reference number 19 is the steel wire for positioning the blank tube in the preheating zone placed on the blank tube placement position 20, and a pair of limit steel wires 19 are respectively provided on the left and right sides of the oven. Corresponding to the billet tube placement position 25 in the main heating zone, the billet tube clamps are respectively arranged on the left and right sides of the oven. When the oven is closed, the jaws of the billet tube clamps are the billet tube placement position 25; the clamps include the following structure: Upper clamp arm 24, lower clamp arm 26, fixed pin 27, clamp rotor 28, bearing 29 in the fork of the clamp rotor 28, the opening and closing of the clamp is controlled by the pull cable 31 and the return spring 16, and the reference numeral 33 For the dragline arm that is connected with lower clamp arm 26, reference numeral 32 is the dragline fixed arm that is connected with upper clamp arm 24, and reference numeral 30 is the clamp fixing bolt; Reference numeral 36 is the cylinder that pulls dragline, The reference numeral 35 is a cable fixing plate; when the cylinder 36 acts to pull the cable 31, the cable arm 33 drives the lower clamp arm 26 to rotate downward, and the upper clamp arm 24 moves upward through the cooperation of the bearing 29 and the clamp rotor 28. Rotate, clamp is opened, and the closing of clamp is completed by back-moving spring acting on cable arm 33 and cable fixed arm 32.

As shown in Figure 13, the opening and closing of the oven and the opening and closing of the tongs of the billet tube placement position 25 can be controlled by a control device composed of a cam group 722 and a proximity switch 723 matched with the cam group. switch of the solenoid valve. In this embodiment, the cam mechanism and the proximity switch are used as the control device, which is more convenient for the manufacturer to maintain the control device and perform sequential process adjustment. The control device can also adopt a single-chip microcomputer.

During work, the driving cylinder 7 of the opening and closing oven is controlled by the control device to operate, so that the opening and closing of the oven is coordinated with the actions of the first-stage billet tube shifting device, the second-stage billet tube shifting device, and the bend pipe clamping device 500 . When the clamps of the secondary blank tube shifting device and the bending pipe clamping device 500 respectively clamp the blank tubes at the placement position 20 and the placement position 25, the oven is opened for the secondary blank tube shifting device, the bending pipe clamp The pincer device 500 shifts the base tube and the first-level base tube shifting device moves the base tube into the placement position 20. After the first-level base tube shifting device and the second-level base tube shifting device move the base tube to the position, the oven is closed; After the heating is completed, when the secondary billet tube shifting device and the pipe bending clamp device 500 clamp the billet tube respectively, the oven is opened again, and the cycle repeats.

The tongs at the position 25 of the billet tube move together with the rear body of the oven, and at the same time, the cylinder 36 is controlled by the control device to move, so that the opening and closing of the upper clamp arm 24 and the lower clamp arm 26 are matched with the secondary billet tube shifting device and the bending tube. The actions of the clamping device 500 are coordinated. When the secondary blank tube shifting device transfers the blank tube to the main heating zone, the upper clamp arm 24 and the lower clamp arm 26 move forward with the rear body of the oven. When the blank tube enters the jaws, the upper clamp arm 24 and the lower clamp arm 26 is closed, when the heating ends and the clamps of the elbow clamp device 500 clamp the base tube, the upper clamp arm 24 and the lower clamp arm 26 are opened and retreat with the oven rear body.

Refer to accompanying drawing 14. The first-stage blank tube shifting device includes a lower hopper 1 for the lamp tube blank tube, the left clamp and the right clamp of the first-stage blank tube shifting device are connected with the lifting mechanism, and the first-stage blank tube shifting device A front and rear translation drive mechanism is also provided, and the lifting mechanism is connected with the translation drive mechanism.

Both the left clamp and the right clamp have the following structures: the rear clamp arm 12, the front clamp arm 11, the rear clamp arm 12 is fixedly connected to the clamp arm holder 8, and the clamp arm holder 8 is fixedly connected to the clamp holder 5 , Reference numeral 10 is the front and rear forearm connecting block, and front pincer arm 11 is rotatable, and its rotation is controlled by drag cable 6 and back-moving spring 17, and reference numeral 47 is a cylinder for pulling drag cord 6. Reference numeral 4 is the stop steel wire that is installed on the clamp arm holder 8 to prevent the clamped blank tube from shaking.

Reference numeral 46 is the cylinder in the elevating mechanism of the left clamp and the right clamp, reference numeral 45 is the cylinder fixing seat, reference numeral 42 is the slider connected on the fixing seat, and reference numeral 43 is for cooperating with the slider The chute, reference numeral 44 is a fixed block connecting the chute and the clamp holder 5, like this, the left clamp and the right clamp of the primary billet tube shifting device can be lifted under the action of the cylinder in the lifting mechanism . The reference number 9 is the lifting limit bolt of the clamp holder 5 matched with the clamp holder 5, the reference number 3 is the installation bracket of the limit bolt 9, and the installation bracket 3 is installed on the support 2.

The front and rear translation driving mechanism in the first-stage billet tube shifting device includes a cylinder 40, and the reference numeral 37 is a slider acted by the cylinder 40. The first-stage billet tube shifting device is provided with two left and right sliders, and the reference numeral 38 is The chute of slide block, reference number 41 is the top piece that connects slide block 37 and cylinder holder 45. Reference numerals 48 and 49 are inlet and outlet air pipes of the cylinder 40 .

Reference numeral 14 is a blank tube stopper, and reference numeral 15 is a support rod of the blank tube stopper. The blank tube stopper can make the blank tube roll into the hopper slideway 13 in an orderly manner, preventing the blank tube from falling into the hopper 1. The billet tube rolls down to the billet tube slide without restriction.

The control device of the first-stage billet tube shifting device of the utility model is the same as the action control device of the heating device.

When working, under the action of the cylinder 46, the left clamp and the right clamp in the first-stage billet shifting device go down from the high position to the end of the slideway 13, the cylinder 47 moves, and under the action of the return spring 17, Clamp a blank tube, then the cylinder 40 is inflated, the left clamp and the right clamp and their lifting mechanism in the first-stage blank tube shifting device are pushed forward as a whole to directly above the placement position 20 in the preheating area, and then Cylinder 46 moves again, makes the left clamp and the right clamp in the one-level billet shifting device continue to move down to the preheating zone placement position 20 of oven. The cylinder 47 moves, the left clamp and the right clamp in the first-stage blank tube shifting device loosen the blank tube, and the blank tube is placed in the preheating area placement position 20, the cylinder 46 moves again, and the first-stage blank tube shifting device The left and right clamps of the first stage move upward to the slideway, and then the left and right clamps and their lifting mechanism in the first-stage blank tube shifting device are moved backwards to the positive position at the end of the slideway as a whole. Above, the cylinder 46 moves again, and the left clamp and the right clamp in the first-stage blank tube displacement device clamp the next blank tube from the high position down to the end of the slideway 13 under the effect of the cylinder 46, and go round and begin again.

The secondary blank tube shifting device includes a part on the right side and a left part of the pipe bending machine with the same structure, and is provided with a left clamp and a right clamp correspondingly, and the left clamp and the right clamp are respectively arranged in the oven on both sides. The two parts are respectively provided with a lifting mechanism driven by a cylinder or a motor, and the left clamp and the right clamp are respectively connected to the lifting mechanism; the left clamp and the right clamp in the secondary billet tube shifting device respectively include the following Structure: a pair of rotatable tong arms, the rotating swing arm acting on one of the tong arms and the transmission gear set linked to the tong arm, the reset torsion spring for the rotation of the tong arm, the rotating swing arm and the drive driven by the cylinder or motor institutions connected.

With reference to accompanying drawing 3,4. Taking the part of the secondary billet shifting device on the right side of the pipe bending machine as an example, it includes the right clamp main body 420 of the billet shifting device composed of a rotatable clamp arm 401 and a clamp arm 403. The lifting mechanism makes The right clamp shifts between the preheating zone and the main heating zone of the heating device, and the right clamp main body 420 is installed on its fixing base 405, and the fixing base is connected with the lifting device. The elevating mechanisms of the left and right clamps work synchronously.

A rubber pad 402 is embedded on the jaw of the pliers arm.

In this embodiment, with reference to accompanying drawings 3 and 4, the reference number 406 is a slide block, which is installed on the side of the oven, and the reference number 413 is a lifting seat with a chute that can slide up and down on the slide block. A fixed block 407 is fixed on it, the fixed seat 405 is connected on the fixed block 407, and the fixed block is connected with the lifting device, so that the fixed seat is connected with the lifting mechanism.

This embodiment is provided with the rotating swing arm 411 of the pincer arm, and the second-stage billet tube shifting device is provided with a transmission gear set 404 linked by the pincer arm. Be fixed on the fixed seat 405, the small shaft of the clamps behind the fixed seat is equipped with the rotating reset torsion spring 409 of the tongs arm, and is fixed with the torsion spring fixed cover 410. The tail end of the small shaft of the clamp passes through the rotating swing arm 411, and is then fixed on the fixed block 407 embedded with the bearing.

In this embodiment, the driving mechanism for the rotation of the pliers arm is the cable 414 and the cylinder 421 connected with the cable, and the lifting mechanism is the lifting mechanism driven by the cylinder 418 . The lifting mechanism can also be a lifting mechanism driven by an air cylinder and a chain transmission mechanism.

With reference to accompanying drawing 13, the utility model is provided with the control device that controls the cylinder or the motor in the secondary billet tube displacement device, and this control device is the same as the action control device of the heating device, and the control device is the cam group 722 and the cam group 722. Combined with a proximity switch 723, the proximity switch controls the switch of the electromagnetic valve or the switch of the motor on the air intake pipeline of the cylinder. In this embodiment, the cam mechanism and the proximity switch are used as the control device, which is more convenient for the manufacturer to maintain the control device and perform sequential process adjustment. The control device can also adopt a single-chip microcomputer.

When working, the cam of the cam group is always rotating; to trigger the proximity switch, switch the solenoid valve, and make the cylinder act. The cylinder that controls the dragline tightens the dragline, and the dragline pulls and rotates the swing arm 411, which drives the rotation of the small shaft 408 to rotate one of the pincer arms, and through the transmission of the transmission gear set 404, the other pincer arm rotates in the opposite direction. When the assembly of the fixed block 407, the fixed seat 405, and the lifting seat 413 moves to the working position corresponding to the preheating zone, the clamp is opened so that the blank tube enters the clamp, and then the cable is released, and under the action of the return spring, The clamp arm rotates in reverse, and the left clamp and the right clamp clamp the preheated blank tube. At this time, the cam of the cam group cooperates with the proximity switch to make the cylinder 418 operate, and the piston rod of the cylinder pushes the fixed block 407 and the fixed seat 405. The components of the lifting seat 413 move to the working position corresponding to the main heating zone, the cylinder controlling the cable moves again, the cable is tightened, the cable pulls and rotates the swing arm, and the clamp is opened so that the billet tube is placed in the main heating zone. Place a bit. The cam of the cam group cooperates with the proximity switch to make the cylinder 418 operate again, and the piston rod of the cylinder pushes the components of the fixed block 407, the fixed seat 405, and the lifting seat 413 to move to the working position corresponding to the preheating zone, and the secondary blank tube shifting device The billet tube is transported in a reciprocating sequence, and the residence time of the billet tube in the heating process can be accurately controlled by adjusting the action time of the cylinder.

The head of the double helix elbow head 50 of the present utility model is provided with an elbow positioning groove 51 . Referring to accompanying drawing 5, the upper end of the shaft 52 of the double helix pipe bender and the connecting part of the double helix pipe bender are screw rods, and extend into the lower part of the pipe bender, and the lower part of the energy-saving lamp spiral pipe bender is provided with a The belt pulley 54 that motor 53 drives, belt pulley 54 cooperates with the screw mandrel on the rotating shaft 52, drives double helix elbow head to rotate and rise or descend.

Refer to accompanying drawings 5-8. The pipe bending clamp device also includes a part 5100 on the right side of the pipe bender and a part 5200 on the left side with the same structure and synchronous action, and is provided with a left clamp and a right clamp correspondingly. The side part and the left part also include an advance and retreat driving mechanism and a lifting mechanism respectively. The left and right clamps of the bending pipe clamp device are respectively connected to the advancing and retreating driving mechanism. The helical angle of the pipe head advances and retreats obliquely, and the advance and retreat drive mechanism is connected to the lifting mechanism.

Referring to accompanying drawings 5-8, taking the part of the pipe bending clamp device on the right side of the pipe bending machine as an example, it includes a pipe bending clamp 517, which is connected to the forward and backward driving mechanism of the pipe bending clamp, The forward and backward driving mechanism drives the pipe bending clamp to advance and retreat obliquely according to the helical angle of the double helix pipe bending head, and the forward and backward driving mechanism is connected with the lifting mechanism.

In this embodiment, the forward and backward driving mechanism of the pipe bending clamp includes a driving motor 504, and the motor 504 is installed on its mounting seat 503. The forward and backward driving mechanism also includes an inclined movable guide rail 505 driven by the driving motor. The movable guide rail has The rack can be driven by the motor 504, and the angle of inclination of the movable guide rail is consistent with the helix angle of the double helix pipe bender. When the pipe is bent, the pipe is sent along the direction of this angle and retreats after the end of the pipe bend. The bending clamp 517 is disposed on its fixing base 516 , and the fixing base 516 is connected to the movable guide rail 505 .

The curved pipe clamp includes a pair of rotatable clamp arms that are coordinated and rotated. The clamp device is also provided with a rotating swing arm 515 acting on the clamp arm and a cylinder 502 acting on the rotating swing arm. The cylinder 502 acts , drive the rotating swing arm 515 to rotate, thereby driving the pincer arm to rotate, to clamp or loosen the blank tube. The rotating swing arm can also be driven by a motor-driven drive mechanism.

The chuck 520 of the pliers arm is made of flexible material or the surface of the chuck is made of flexible material. Make the clamping part of the tongs tough, prevent the blank tube from breaking when clamping the blank tube, and prevent the blank tube from sliding.

The bending clamp device is also provided with a blank tube blowing mechanism when bending the tube. The blank tube blowing mechanism is connected to the forward and backward drive mechanism, and the position of the blowing port is the same as that of the lamp tube blank in the bending clamp device. The positions in the clamps correspond.

The air blowing mechanism includes a blank tube plug 531 and a cylinder 535 that drives it to plug the lamp tube blank. The blank tube plug 531 is pierced with a blowing tube 536 . The reference number 532 is the connection and fixing sleeve between the base tube plug 535 and the cylinder piston head, and the reference number 534 is the fixing plate of the cylinder 535 . The fixed plate 534 is connected with the advancing and retreating driving mechanism, and this connection can be realized by being directly installed on the advancing and retreating driving mechanism, and also can be realized by being installed on parts that move together with the movable guide rail 505 . The air blowing mechanism blows air on the blank tube when bending the tube, which can help the blank tube to be formed correctly and improve product quality.

The advancing and retreating driving mechanism of the pipe bending clamp is provided with a connecting seat 512, and the connecting seat is connected with the mounting seat 503. The advancing and retreating driving mechanism of the pipe bending clamp is provided with a displacement travel switch of the movable guide rail, and the travel switch includes The travel switch 507 corresponding to the pipe feeding action can accurately control the number of turns and shape of the heated blank pipe on the double helix pipe bend head by controlling the pipe feeding stroke of the movable guide rail. The travel switch 507 is set In connection seat 512.

The forward and backward driving mechanism of the pipe bending clamp is also provided with a displacement travel switch 510 of the movable guide rail, and the travel switch 510 is connected to a lifting mechanism installed on a connecting seat 512 . The driving mechanism of lifting mechanism is cylinder 527, and cylinder 527 is installed on the fixed plate 526, and the driving mechanism of lifting mechanism also can adopt chain transmission mechanism. Reference numeral 524 is a slide block connected with the cylinder piston head, travel switch 510 links to each other with slide block 524, reference numeral 522 is a chute of slide block 524, and chute and cylinder fixed plate 526 are installed on the foot seat 521. Return tension springs 528 and 529 are also provided in the lifting mechanism.

A travel limiter 509 with a stepped surface at the rear end cooperating with the travel switch is installed on the sliding guide rail 505 , as shown in FIG. 7 , wherein the lower stepped surface protrudes backward from the upper stepped surface.

Through the action of the cylinder 527, the travel switch 510 is matched with the different step surfaces at the rear end of the travel limit 509, which can not only control the retreat stroke of the movable guide rail when the billet tube is taken out from the oven, but also adjust the spiral length of the billet tube to prevent the deformation of the billet tube from affecting the bend. Pipe process, and at the same time control the retraction stroke of the sliding guide rail after the pipe is bent.

In this embodiment, the elevating mechanism that lifts the forward and backward driving mechanism includes a cylinder 540 and a slider 538 driven by the cylinder 540. The mounting seat 503 is connected to the slider 538, and their connection is an adjustable connection, so that the elbow The inclination angle of the clamp can be adjusted. The reference number 539 is the connecting block of the cylinder 540 and the slide block 538, and the reference number 537 is the chute of the slide block.

With reference to accompanying drawing 1,2,4,13. The control device of the utility model for controlling the bend pipe clamp device is the same as the control device for controlling the secondary billet pipe shifting device.

When working, the cylinder 540 is activated by the cooperation of the cam group and the proximity switch, and the lifting mechanism drives the bending clamp, the blank tube blowing mechanism, and the forward and backward drive mechanism to rise up to the oven to pick up materials. At the same time, the cylinder 535 operates to drive the blank tube plug The head 531 plugs the two ends of the billet tube, the oven cover is opened, the cylinder 502 acts, and the clamp clamps the billet tube. At this time, the cylinder 527 has driven the travel switch 510 upward, the motor 504 operates, and the movable guide rail retreats to the rear end of the travel limit 509. The upper step surface is in contact with the travel switch 510 to straighten the blank tube; the cylinder 540 moves again, and the lifting mechanism drives the bending clamp, the blank tube blowing mechanism, and the forward and backward drive mechanism to descend to the 50 position of the double helix pipe bending head as a whole, so that the blank tube Falling into the positioning groove 51, the motor 504 acts, and the movable guide rail sends the pipe along the helix angle of the double helix pipe bender 50. At the same time, the motor 53 moves to drive the double helix pipe bender 50 to rotate and rise, and the blank pipe is bent on the spiral head , At the same time, the blank tube blowing mechanism is set to blow the blank tube. When the movable guide rail advances to the front end of the travel limit 509 and contacts the travel switch 507, the pipe bending process ends. At the end of the pipe bending, the cylinder 527 has driven the travel switch 510 downward. After the shift clamp clamps the formed blank tube, the cylinder 502 acts, the clamp releases the blank tube, the motor 504 operates, and the movable guide rail retreats to the stroke limit. The lower step surface at the rear end of position 509 is in contact with the travel switch 510, and at the same time, the motor 53 operates, and the double helix pipe bending head 50 rotates and descends, so that the spiral head withdraws from the formed blank tube, so that the pulling device can pull the formed blank tube Remove the bender. The action of the above air cylinder is controlled by the proximity switch matched with the cam through the solenoid valve on and off the air circuit, and the start of the motor is controlled by the proximity switch matched with the cam.

Refer to accompanying drawings 9-12. The pulling device includes left and right tongs corresponding to the left and right ends of the forming tube, a mechanism for driving the tongs switch, a mechanism for driving the tongs to tilt forward and downward at a certain angle, a support 612 that can advance and retreat, and a mechanism that drives the support to advance and retreat. The mechanism, the left and right clamps are connected to the support 612 that can advance and retreat, and the pulling device is also provided with a support horizontal rotation mechanism after the support is pulled out.

The left clamp and the right clamp are composed of a pair of clamp arms 622 respectively, and a silicon rubber 624 is arranged at the clamp mouth, and reference numeral 621 is a return spring of the clamp arms.

The bracket is rotatably connected to a mechanism that drives the bracket to advance and retreat, and the mechanism that drives the bracket to advance and retreat is an air cylinder 606 . The fixed seat 605 of the air cylinder 606 is connected on the plate 607, and the pull-out device is provided with a horizontal rotation positioning plate 610 having a cam surface 100, and the support 612 is connected with a bearing 634 cooperating with the cam surface. The rotating positioning plate 610 is fixed on the plate 607 with the rotating positioning plate bracket 609. After the two slide rails 611 pass through the sliding seat 628 equipped with needle bearings, the two ends respectively pass through the two horizontal plates 608 of the sliding plate and then are fixed with set screws. , the sliding seat 628 is connected with the cylinder 606 with the joint bolt 627, and the extension spring positioning frame 629 is welded next to it, and the pull-out device is provided with a back-moving spring 630 for the horizontal rotation of the bracket, and one end of the back-moving spring 630 is connected with the positioning frame 629, and the other One end is connected to the bracket.

The mechanism for driving the clamp to tilt forward and downward at a certain angle includes a cylinder 633 and a wrench arm 619 rotated by the cylinder. The left and right clamps are connected to the support in a manner that the left and right clamps can rotate up and down, and the connection mode is that the left and right clamps are respectively installed on their fixing bases 635 , and the fixing bases are connected on the connecting base 625 . The middle part of the connecting seat 625 plays the role of the up and down rotation shaft of the left and right clamps, the mounting seat 631 of the clamp is connected with the support, the connecting seat 625 passes through the mounting seat 631, the middle part of the connecting seat is connected with the wrench arm 619, the cylinder 633 is set on the bracket 612.

The mechanism for driving the clamp switch is a cylinder 614 and a cable 616 connected with the cylinder, and the clamp is connected with the cable. Cylinder 614 is located on the bracket 612, its pole 613 is welded on the bracket 612, cylinder push rod 615 is connected with drag cable 616, clamp fixing seat 635 is provided with drag cable fixing block 620, the wherein of drag cable and clamp A clamp arm is attached.

The left and right clamps are installed with an adjustable angle, and the angle is an inclination angle to both sides of the clamps, and the inclination angle corresponds to the inclination angles at the left and right ends of the forming tube. In this embodiment, the fixing bases 635 of the left and right clamps are connected to the connection base 625 through bolts and adjustment holes, so that the angles of the left and right clamps can be adjusted.

The support and the mechanism for driving the support to advance and retreat are connected to the lifting mechanism. The chute 603 is installed on the foot base 602, and the support and the mechanism for driving the support to advance and retreat are connected to the slide block 601, so as to realize the sliding up and down of the whole device, and the slide block positioning 604 limits the stroke of sliding up and down.

Refer to accompanying drawing 13. The control device of the utility model for controlling the pull-out device is the same as the control device for controlling the secondary blank tube shifting device.

In actual work, after the blank tube of the energy-saving lamp tube is bent and formed on the screw head, the bracket 612 advances under the action of the cylinder 606, and under the action of the cylinder 614, the clamp opens and closes, and the left and right ends of the formed tube Clamping, the slide block 601 rises to make the mechanism set on the support 612 and the support, the forming pipe, and the mechanism for driving the support advance and retreat rise as a whole. Then, the bracket 612 retreats under the action of the cylinder 606, and when it retreats to the pull-out position, the mechanism and the forming tube on the bracket and the bracket are turned horizontally to the energy-saving lamp spiral pipe bender by the cooperation of the bearing 634 and the cam surface 6100. The side of cylinder 633 moves, clamps tilt forward and downwards, cylinder 614 moves, opens clamps, unloads forming pipe. Complete the forming tube pulling work.

Claims (12)

1. The spiral pipe bending machine for energy-saving lamp tubes is characterized in that it includes a double-helix pipe bending head that can be lifted and rotated. The primary billet tube shifting device, the secondary billet tube shifting device that moves the billet tube from one heating area to another heating area in the heating device, the bending that moves the billet tube out of the heating device to the spiral pipe bending head for pipe bending The pipe clamp device, the pulling device that moves the formed blank tube out of the pipe bender; the heating device is a vertical heating device, the first-stage blank tube shifting device is above the vertical heating device, and the double The spiral pipe bending head is located below the heating device, and the first-stage billet pipe shifting device, the second-stage billet pipe shifting device, the pipe bending clamp device, and the pulling device are respectively equipped with left clamps that cooperate with the left and right ends of the billet pipe. pliers and right clamp. 2. The spiral tube bending machine for energy-saving lamp tubes according to claim 1, characterized in that the second-stage blank tube shifting device is provided with a lifting mechanism driven by a cylinder or a motor, and the left clamp and the right clamp The tongs are respectively connected to the lifting mechanism; the left tongs and the right tongs in the secondary billet shifting device respectively include the following structures: a pair of rotatable tong arms, a rotating swing arm acting on one of the tong arms, and a tong The transmission gear set linked by the arms and the return torsion spring for the rotation of the pliers arm are connected with the driving mechanism driven by the cylinder or the motor. 3. The spiral tube bending machine for energy-saving lamp tubes as claimed in claim 2, characterized in that it is provided with a control device for controlling the cylinder or the motor in the secondary blank tube shifting device, and the control device is a cam group and a A proximity switch matched with the cam group, the proximity switch controls the switch of the solenoid valve or the switch of the motor on the air intake pipeline of the cylinder. 4. The spiral pipe bender for energy-saving lamp tubes according to claim 1, wherein the bending clamp device also includes a forward and backward drive mechanism and a lifting mechanism, and the left and right clamps of the bending clamp device are respectively connected On the advancing and retreating driving mechanism, the said advancing and retreating driving mechanism drives the pipe bending clamp to advance and retreat obliquely according to the helical angle of the double helix pipe bending head, and the said advancing and retreating driving mechanism is connected to the lifting mechanism. 5. The energy-saving lamp tube spiral pipe bender according to claim 4, wherein the forward and backward drive mechanism in the bending clamp device includes a drive motor, and an inclined movable guide rail driven by the drive motor, the movable guide rail The angle of inclination is consistent with the helical angle of the double helix pipe bend head; the left clamp and the right clamp in the bend pipe clamp device respectively include the following structures: a pair of rotatable clamp arms, a rotating swing arm acting on the clamp arms , the rotating swing arm is connected with a driving mechanism driven by a cylinder or a motor. 6. The spiral pipe bending machine for energy-saving lamp tubes according to claim 4, characterized in that the bending clamp device is also provided with a blank tube blowing mechanism when bending the tube, and the blank tube blowing mechanism is connected to On the forward and backward drive mechanism, the position of the blowing port corresponds to the position of the lamp tube blank in the clamp of the bending clamp device. 7. The spiral pipe bending machine for energy-saving lamp tubes according to claim 4, characterized in that the forward and backward drive mechanism of the bending clamp device is provided with a displacement travel switch of the movable guide rail, and the travel switch includes a pipe feeding action. The corresponding travel switch and the travel switch corresponding to the retreat action when taking out the billet tube from the heating device. 8. The spiral tube bending machine for energy-saving lamp tubes according to claim 1, characterized in that the pull-out device also includes a mechanism that drives the clamp in the pull-out device to tilt forward and downward at a certain angle, and can advance and retreat. Support, the mechanism that drives the support to advance and retreat, the left and right clamps are connected to the support that can advance and retreat, and the pull-out device is also provided with a support horizontal rotation mechanism after the support is pulled out; the left and right clamps of the pull-out device are The angle is adjustable, and the angle is the angle of inclination toward both sides of the clamp, and the angle of inclination corresponds to the angle of inclination at the left and right ends of the forming tube. 9. The energy-saving lamp tube spiral bender according to claim 8, characterized in that the bracket in the pull-out device is rotatably connected with a mechanism that drives the bracket forward and backward, and the pull-out device is provided with a cam surface The positioning plate for horizontal rotation and the return spring for the horizontal rotation of the bracket, the bracket is connected with a bearing that cooperates with the cam surface. 10. The spiral tube bending machine for energy-saving lamp tubes according to claim 8, characterized in that the mechanism for driving the clamps in the pulling device to tilt forward and downward at a certain angle includes a cylinder and a mechanism that is rotated by the cylinder. As for the wrench arm, the left and right clamps in the pull-out device can be connected to the support in a vertically rotatable manner, and the shafts for the left and right clamps to rotate up and down are connected to the wrench arm. 11. The spiral tube bending machine for energy-saving lamp tubes according to claim 1, characterized in that the first-stage blank tube shifting device includes a lower hopper for lamp tube blanks, and the left side of the first-stage blank tube shifting device The clamp and the right clamp are connected with the lifting mechanism, and the first-stage billet tube shifting device is also provided with a front and rear translation driving mechanism, and the lifting mechanism is connected with the translation driving mechanism. 12. The spiral tube bending machine for energy-saving lamp tubes according to claim 1, characterized in that the heating device for the blank tube of the lamp tube is an oven that can be opened and closed, and the oven is equipped with a tube blank corresponding to the heating area. tube placement.

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