Automatic nozzle welding machine

Abstract

The invention discloses an automatic nozzle welding machine which comprises a feeding mechanism, a bag nozzle hot-pressing mechanism and a discharging mechanism. The feeding mechanism comprises a feeding support, a front-section feeding mechanism and a rear-section feeding mechanism, a feeding front-back air cylinder is arranged on the rear-section feeding mechanism, the driving end of the feeding front-back air cylinder is connected with a feeding up-down air cylinder, and the driving end of the feeding up-down air cylinder is connected with a bag suction plate; the bag mouth hot-pressing mechanism comprises a transfer manipulator, a bag mouth vibration disc, a pre-positioning mechanism, a mouth pressing mechanism and a conveying section; the discharging mechanism comprises a discharging support, and a discharging conveying belt is installed on the discharging support. According to the automatic nozzle welding machine, bag mouths of packaging bags are installed, automatic alignment is conducted in the bag feeding process, whether the bag mouths are cut or not is selected according to customer requirements, the bag mouths are placed into the opened bag mouths to be subjected to hot press forming after being aligned, finally cooling and bag discharging output are conducted, the whole process is automatically conducted, manual participation is not needed, and the precision and efficiency are high.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging bag production, in particular to an automatic nozzle welding machine. Background Art

[0002] The packaging bag needs a mouth to pour out the contents. When the existing packaging bag is installed with a suction nozzle, a single device can only open the bag mouth by suction. After the bag mouth is inserted, it is transferred to another device for hot pressing. The operation is inconvenient and the alignment between the bag mouth and the bag mouth is poor, which affects the use and quality of the finished bag. Summary of the Invention

[0003] One purpose of the present invention is to provide an automatic nozzle welding machine that automatically conveys packaging bags, then opens the bag mouth to insert the bag nozzle, and finally hot-presses and forms it, automatically and centrally processes it, and operates in an assembly line to improve production efficiency.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] An automatic nozzle welding machine includes a feeding mechanism, a nozzle hot pressing mechanism and a blanking mechanism;

[0006] The feeding mechanism includes a feeding bracket and a front feeding mechanism and a rear feeding mechanism on the feeding bracket. The rear feeding mechanism is provided with front and rear feeding cylinders. The driving ends of the front and rear feeding cylinders are connected to upper and lower feeding cylinders. The driving ends of the upper and lower feeding cylinders are connected to the bag suction plate.

[0007] The bag spout hot pressing mechanism includes a transfer manipulator, a bag spout vibrating plate, a pre-positioning mechanism, a nozzle pressing mechanism and a conveying section. The transfer manipulator is located at the front end side of the conveying section. A plurality of transfer nozzles are provided on the driving end of the transfer manipulator. The pre-positioning mechanism is located between the bag spout vibrating plate and the conveying section. The nozzle pressing mechanisms are arranged in a plurality and arranged on the side of the conveying section.

[0008] The unloading mechanism comprises an unloading bracket, on which an unloading conveyor belt is installed.

[0009] As a preferred technical solution, both ends of the front-end feeding mechanism are provided with rotating pulleys, and a round belt is connected to the belt pulley for transmission. A feeding fixed plate is provided under the round belt, and one side of the feeding fixed plate is bent into a fixed side plate, and the rear end of the feeding fixed plate is bent into a feeding baffle. An adjusting rod is installed on one side of the front-end feeding mechanism, and an adjusting side plate is fixed on the adjusting rod.

[0010] As a preferred technical solution, belt shafts are rotatably provided at both ends of the rear feeding mechanism, a flat belt is driven on the belt shafts, an alignment cylinder is installed on one side of the rear end of the rear feeding mechanism, and an alignment plate is connected to the driving end of the alignment cylinder.

[0011] As a preferred technical solution, a feeding seat is fixed on the rear feeding mechanism, the front and rear feeding cylinders are fixed in the middle of the upper end of the feeding seat, a plurality of feeding suction nozzles are distributed on the suction bag plate, a pressing shaft is fixed at the front end of the feeding seat, and a pressing wheel is rotatably provided on the pressing shaft.

[0012] As a preferred technical solution, a chamfering assembly is provided on one side of the front end of the conveying section. The chamfering assembly includes a chamfering base, a chamfering box body and a waste recycling box. A hand wheel is provided behind the chamfering base, the hand wheel is connected to an advancing and retracting lead screw, the advancing and retracting lead screw is in threaded transmission with a nut on the chamfering box body, front and rear slide rails are fixed on the chamfering base, the lower end of the chamfering box body slides on the front and rear slide rails, the waste recycling box is located at the lower end of the chamfering box body, and an upper cutting knife and a lower cutting knife are installed on the chamfering box body.

[0013] As a preferred technical solution, a lower cutting cylinder is installed at the lower end of the chamfering box body, the lower cutting knife is fixed to the driving end of the lower cutting cylinder, an upper cutting cylinder is installed at the upper end of the chamfering box body, the upper cutting knife is fixed to the driving end of the upper cutting cylinder, upper and lower slide rails are fixed on both sides of the chamfering box body, both the upper cutting knife and the lower cutting knife slide on the upper and lower slide rails, a funnel is provided at the lower end of the chamfering box body, and the upper end of the funnel is fixedly connected to the lower cutting knife.

[0014] As a preferred technical solution, the output end of the bag mouth vibrating disc is connected to a linear vibrator. The pre-positioning mechanism includes a steering support. A steering motor is installed below the steering support. The driving end of the steering motor is in transmission connection with a four-station turntable. A translation cylinder is installed on the four-station turntable. The driving end of the translation cylinder is connected to a pneumatic gripper. A positioning support is fixed on one side of the steering support. A clamping cylinder is fixed on the positioning support. The driving end of the clamping cylinder is connected to a positioning clamping plate.

[0015] As a preferred technical solution, a bag opening cylinder is provided on the front side of the nozzle pressing mechanism. The driving end of the bag opening cylinder is connected to a bag opening suction nozzle. An upper pressing cylinder is provided at the upper end of the nozzle pressing mechanism. The driving end of the upper pressing cylinder is connected to an upper pressing block. A lower pressing cylinder is provided at the lower end of the nozzle pressing mechanism. The driving end of the lower pressing cylinder is connected to a lower pressing block. Heating tubes are installed inside both the upper pressing block and the lower pressing block located on the side of the front section and the middle section of the conveying section. Water cooling devices are installed on both the upper pressing block and the lower pressing block located on the side of the rear section of the conveying section.

[0016] As a preferred technical solution, the conveying section includes an upper conveying section and a lower conveying section. Conveying wheels are installed at both ends of the upper conveying section and both ends of the lower conveying section. An upper end conveyor belt is driven between the two upper conveying wheels, and a lower end conveyor belt is driven between the two lower conveying wheels. The upper and lower groups of conveying wheels are connected by a shaft to a conveying gear, and the conveying gears are meshed and driven with each other.

[0017] As a preferred technical solution, a blanking motor is installed at one end of the blanking support. Blanking shafts are rotatably connected to both ends of the blanking conveyor belt. Driving belt wheels are installed at the ends of the blanking shafts and the driving end of the blanking motor, and a driving belt is driven between the driving belt wheels.

[0018] The beneficial effects of the present invention are as follows: An automatic welding nozzle machine is provided. The automatic welding nozzle machine installs the nozzle of the packaging bag, aligns itself during the bag loading process, selects whether to cut the bag mouth according to customer requirements, places the nozzle in the opened bag mouth for hot pressing and forming after nozzle alignment, and finally cools down and outputs the bag. The whole process is automated without manual participation, with high precision and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0020] Figure 1 FIG. is a schematic diagram of the overall structure of an automatic welding nozzle machine described in the embodiment;

[0021] Figure 2 FIG. is a first schematic diagram of the loading mechanism described in the embodiment;

[0022] Figure 3 FIG. is a second schematic diagram of the loading mechanism described in the embodiment;

[0023] Figure 4 FIG. is a schematic diagram of the structure of the nozzle hot pressing mechanism described in the embodiment;

[0024] Figure 5 FIG. is a schematic diagram of the structure of the conveying section described in the embodiment;

[0025] Figure 6 FIG. is a first schematic diagram of the corner cutting assembly described in the embodiment;

[0026] Figure 7 FIG. is a second schematic diagram of the corner cutting assembly described in the embodiment;

[0027] Figure 8 FIG. is a combined structural diagram of the nozzle vibrating disk and the pre-positioning mechanism described in the embodiment;

[0028] Figure 9Schematic structural diagram of the pre-positioning mechanism described in the embodiment;

[0029] Figure 10 Schematic structural diagram of the nozzle pressing mechanism described in the embodiment;

[0030] Figure 11 Schematic structural diagram of the blanking mechanism described in the embodiment.

[0031] Figures 1 to 11 In:

[0032] 1. Loading mechanism; 2. Bag mouth hot pressing mechanism; 3. Blanking mechanism; 4. Front-stage loading mechanism; 5. Rear-stage loading mechanism; 6. Front and rear loading cylinders; 7. Up and down loading cylinders; 8. Bag suction plate; 9. Transfer manipulator; 10. Bag mouth vibratory bowl; 11. Pre-positioning mechanism; 12. Nozzle pressing mechanism; 13. Conveyor section; 14. Transfer suction nozzle; 15. Blanking support; 16. Blanking conveyor belt; 17. Belt pulley; 18. Round belt; 19. Fixed side plate; 20. Adjusting rod; 21. Adjusting side plate; 22. Belt shaft; 23. Flat belt; 24. Alignment cylinder; 25. Alignment plate; 26. Loading seat; 27. Pressing shaft; 28. Pressing wheel; 29. Lower-end motor; 30. Chamfering base; 31. Chamfering box body; 32. Waste recycling box; 33. Handwheel; 34. Forward and backward lead screw; 35. Front and rear slide rails; 36. Upper cutting knife; 37. Lower cutting knife; 38. Lower cutting cylinder; 39. Upper cutting cylinder; 40. Up and down slide rails; 41. Hopper; 42. Linear vibrator; 43. Steering support; 44. Steering motor; 45. Four-station turntable; 46. Translating cylinder; 47. Pneumatic gripper; 48. Alignment support; 49. Clamping cylinder; 50. Alignment clamping plate; 51. Upper conveyor section; 52. Lower conveyor section; 53. Conveyor wheel; 54. Upper-end conveyor belt; 55. Lower-end conveyor belt; 56. Conveyor gear; 57. Bag opening cylinder; 58. Bag opening suction nozzle; 59. Upper pressing cylinder; 60. Upper pressing block; 61. Lower pressing cylinder; 62. Lower pressing block; 63. Blanking motor; 64. Belt pulley; 65. Packaging bag. Detailed implementation manners

[0033] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation manners.

[0034] As Figures 1 to 11As shown in the figure, in this embodiment, an automatic welding nozzle machine includes a feeding mechanism 1, a bag nozzle hot pressing mechanism 2, and a discharging mechanism 3. The feeding mechanism 1 includes a feeding bracket and a front-stage feeding mechanism 4 and a rear-stage feeding mechanism 5 located on the feeding bracket. A feeding front and rear cylinder 6 is arranged on the rear-stage feeding mechanism 5. The driving end of the feeding front and rear cylinder 6 is connected to a feeding up and down cylinder 7, and the driving end of the feeding up and down cylinder 7 is connected to a bag suction plate 8. The bag nozzle hot pressing mechanism 2 includes a transfer manipulator 9, a bag nozzle vibrating disk 10, a pre-positioning mechanism 11, a nozzle pressing mechanism 12, and a conveying section 13. The transfer manipulator 9 is located on the front side of the front end of the conveying section 13. A number of transfer suction nozzles 14 are arranged on the driving end of the transfer manipulator 9. The pre-positioning mechanism 11 is located between the bag nozzle vibrating disk 10 and the conveying section 13. The number of nozzle pressing mechanisms 12 is several and they are arranged on the side of the conveying section 13. The discharging mechanism 3 includes a discharging bracket 15, and a discharging conveyor belt 16 is installed on the discharging bracket 15.

[0035] The packaging bag 65 is placed flat on the front-stage feeding mechanism 4. When it moves to the rear, the feeding front and rear cylinder 6 and the feeding up and down cylinder 7 act together to control the bag suction plate 8 to adsorb the packaging bag 65 into the rear-stage feeding mechanism 5. Then the transfer manipulator 9 grabs the packaging bag 65 from the rear-stage feeding mechanism 5 and transports it onto the conveying section 13. The bag nozzle vibrating disk 10 conveys the bag nozzles one by one. The pre-positioning mechanism 11 positions the bag nozzles correctly. The front side of the nozzle pressing mechanism 12 opens the bag mouth of the packaging bag 65. After the bag nozzle is put into the bag mouth, the nozzle pressing mechanism 12 fixes and forms the bag mouth and the bag nozzle by hot pressing. The conveying section 13 outputs the packaging bag 65 backward, which is received by the discharging conveyor belt 16.

[0036] Belt pulleys 17 are rotated at both ends of the front-stage feeding mechanism 4. A round belt 18 is drivenly connected to the belt pulleys 17. A feeding fixing plate is arranged below the round belt 18. One side of the feeding fixing plate is bent into a fixed side plate 19, and the rear end of the feeding fixing plate is bent into a feeding baffle. An adjusting rod 20 is installed on one side of the front-stage feeding mechanism 4, and an adjusting side plate 21 is fixed on the adjusting rod 20.

[0037] When the belt pulleys 17 are rotated by the lower-end motor 29, the round belt 18 drives the packaging bag 65 to move forward. By changing the horizontal position of the adjusting rod 20, the adjusting side plate 21 and the fixed side plate 19 cooperate to jointly limit the left and right positions of the packaging bag 65.

[0038] A feeding seat 26 is fixed on the rear-stage feeding mechanism 5. The feeding front and rear cylinder 6 is fixed in the middle of the upper end of the feeding seat 26. A number of feeding suction nozzles are distributed on the bag suction plate 8. A pressing shaft 27 is fixed at the front end of the feeding seat 26, and a pressing wheel 28 is rotated on the pressing shaft 27.

[0039] The feeding suction nozzles on the bag suction plate 8 transfer the packaging bag 65 from the front-stage feeding mechanism 4 to the rear-stage feeding mechanism 5. The existence of the pressing wheel 28 prevents the packaging bag 65 from warping.

[0040] At both ends of the rear feeding mechanism 5, belt shafts 22 are rotatably mounted. A flat belt 23 is driven on the belt shafts 22. On one side of the rear end of the rear feeding mechanism 5, an alignment cylinder 24 is installed. The driving end of the alignment cylinder 24 is connected to an alignment plate 25.

[0041] Also driven by the lower motor 29, the rotation of the belt shafts 22 drives the flat belt 23 to convey the packaging bag 65. At the rear side of the rear feeding mechanism 5, the alignment cylinder 24 positions the packaging bag 65 by pushing the alignment plate 25.

[0042] On one side of the front end of the conveying section 13, a corner cutting assembly is provided. The corner cutting assembly includes a corner cutting base 30, a corner cutting box body 31, and a waste recycling box 32. A handwheel 33 is provided behind the corner cutting base 30. The handwheel 33 is connected to an advancing and retracting lead screw 34. The advancing and retracting lead screw 34 is in threaded transmission with a nut on the corner cutting box body 31. On the corner cutting base 30, a front and rear slide rail 35 is fixed. The lower end of the corner cutting box body 31 slides on the front and rear slide rail 35. The waste recycling box 32 is located at the lower end of the corner cutting box body 31. An upper cutting knife 36 and a lower cutting knife 37 are installed on the corner cutting box body 31.

[0043] Moreover, a lower cutting cylinder 38 is installed at the lower end of the corner cutting box body 31. The lower cutting knife 37 is fixed to the driving end of the lower cutting cylinder 38. An upper cutting cylinder 39 is installed at the upper end of the corner cutting box body 31. The upper cutting knife 36 is fixed to the driving end of the upper cutting cylinder 39. On both sides of the corner cutting box body 31, upper and lower slide rails 40 are fixed. Both the upper cutting knife 36 and the lower cutting knife 37 slide on the upper and lower slide rails 40. A funnel 41 is provided at the lower end of the corner cutting box body 31. The upper end of the funnel 41 is fixedly connected to the lower cutting knife 37.

[0044] This corner cutting assembly is an optional mechanism and is installed according to the customer's requirements.

[0045] According to the size of the corner to be cut from the packaging bag 65, by rotating the handwheel 33, through the transmission of the advancing and retracting lead screw 34 and the nut, the entire corner cutting box body 31 is adjusted back and forth on the front and rear slide rail 35 of the corner cutting base 30. The upper cutting cylinder 39 and the lower cutting cylinder 38 jointly extend their driving ends towards the middle. The upper cutting knife 36 and the lower cutting knife 37 simultaneously cut the corners of the packaging bag 65 along the upper and lower slide rails 40. The waste drops from the funnel 41 into the waste recycling box 32.

[0046] The output end of the bag mouth vibratory bowl 10 is connected to a linear vibrator 42. The pre-positioning mechanism 11 includes a steering support 43. Below the steering support 43, a steering motor 44 is installed. The driving end of the steering motor 44 is drivingly connected to a four-station turntable 45. A translation cylinder 46 is installed on the four-station turntable 45. The driving end of the translation cylinder 46 is connected to a pneumatic gripper 47. One side of the steering support 43 is fixed with a positioning support 48. A clamping cylinder 49 is fixed on the positioning support 48. The driving end of the clamping cylinder 49 is connected to a positioning clamping plate 50.

[0047] The bag mouth is pushed out under the vibration of the bag mouth vibratory bowl 10. The linear vibrator 42 outputs the bag mouths one by one into the pre-positioning mechanism 11, and is clamped by the pneumatic gripper 47 on the four-station turntable 45. The steering motor 44 controls the rotation of the four-station turntable 45. The pneumatic gripper 47 grabs the bag mouth and releases it on the positioning support 48. The clamping cylinder 49 controls the positioning clamping plate 50 to square the bag mouth. Then the pneumatic gripper 47 grabs the squared bag mouth and transfers it to the packaging bag 65 in the nozzle pressing mechanism 12, and puts it into the bag opening through the translation cylinder 46.

[0048] A bag opening cylinder 57 is arranged on the front side of the nozzle pressing mechanism 12. The driving end of the bag opening cylinder 57 is connected to a bag opening suction nozzle 58. An upper pressing cylinder 59 is arranged at the upper end of the nozzle pressing mechanism 12. The driving end of the upper pressing cylinder 59 is connected to an upper pressing block 60. A lower pressing cylinder 61 is arranged at the lower end of the nozzle pressing mechanism 12. The driving end of the lower pressing cylinder 61 is connected to a lower pressing block 62. Heating tubes are installed inside both the upper pressing block 60 and the lower pressing block 62 on the side of the front section and the middle section of the conveying section 13. Water cooling devices are installed on both the upper pressing block 60 and the lower pressing block 62 on the side of the rear section of the conveying section 13.

[0049] The bag opening suction nozzle 58 sucks the upper and lower surfaces of the bag opening of the packaging bag 65 in the vertical direction respectively, and drives the bag opening of the packaging bag 65 to open under the drive of the bag opening cylinder 57. The upper pressing cylinder 59 and the lower pressing cylinder 61 act together, and the upper pressing block 60 and the lower pressing block 62 move closer to each other to clamp the bag opening and the bag mouth of the packaging bag 65. The heating tubes provide heat and heat in batches on each nozzle pressing mechanism 12. Finally, the water cooling device performs a cooling treatment.

[0050] The conveying section 13 includes an upper conveying section 51 and a lower conveying section 52. Conveying wheels 53 are installed at both ends of the upper conveying section 51 and both ends of the lower conveying section 52. An upper end conveyor belt 54 is driven between the two upper conveying wheels 53 above, and a lower end conveyor belt 55 is driven between the two lower conveying wheels 53 below. The upper and lower groups of conveying wheels 53 are connected by a shaft to a conveying gear 56, and the conveying gears 56 are meshed and driven.

[0051] Under the meshing action of the conveying gears 56, the upper and lower groups of conveying wheels 53 rotate synchronously to ensure the synchronous movement of the upper conveying section 51 and the lower conveying section 52, clamp the packaging bag 65 and move it neatly, and smoothly perform hot pressing and cooling.

[0052] One end of the blanking support 15 is equipped with a blanking motor 63. Both ends of the blanking conveyor belt 16 are rotatably connected to blanking shafts. Transmission belt wheels 64 are installed at the ends of the blanking shafts and the driving end of the blanking motor 63, and a transmission belt is driven between the transmission belt wheels 64.

[0053] The heat-pressed packaging bag 65 falls onto the blanking conveyor belt 16. The blanking motor 63 controls the rotation of the transmission belt wheels 64, and drives the blanking conveyor belt 16 through the transmission belt to output the packaging bag 65.

[0054] It should be noted that the above specific implementation manners are only the preferred embodiments of the present invention and the applied technical principles. Any changes or substitutions that are easily conceivable by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. An automatic welding torch machine, characterized in that, It includes a feeding mechanism, a bag mouth hot pressing mechanism and a discharging mechanism; The feeding mechanism includes a feeding support, a front-section feeding mechanism and a rear-section feeding mechanism on the feeding support. A feeding front-back air cylinder is arranged on the rear-section feeding mechanism. The driving end of the feeding front-back air cylinder is connected with a feeding up-down air cylinder, and the driving end of the feeding up-down air cylinder is connected with a bag sucking plate; The bag mouth hot pressing mechanism includes a transfer manipulator, a bag mouth vibrating disk, a pre-positioning mechanism, a nozzle pressing mechanism and a conveying section. The transfer manipulator is located on one side of the front end of the conveying section. A number of transfer suction nozzles are arranged on the driving end of the transfer manipulator. The pre-positioning mechanism is between the bag mouth vibrating disk and the conveying section. The number of the nozzle pressing mechanisms is several and they are arranged side by side on the side of the conveying section; The discharging mechanism includes a discharging support, and a discharging conveyor belt is installed on the discharging support.

2. The automatic welding nozzle machine according to claim 1, characterized in that, Pulley wheels are rotated at both ends of the front-section feeding mechanism. A round belt is driven on the pulley wheels. A feeding fixing plate is arranged below the round belt. One side of the feeding fixing plate is bent into a fixed side plate, and the rear end of the feeding fixing plate is bent into a feeding baffle. An adjusting rod is installed on one side of the front-section feeding mechanism, and an adjusting side plate is fixed on the adjusting rod.

3. The automatic welding torch machine according to claim 1, wherein Belt shafts are rotated at both ends of the rear-section feeding mechanism. A flat belt is driven on the belt shafts. An aligning air cylinder is installed on one side of the rear end of the rear-section feeding mechanism, and the driving end of the aligning air cylinder is connected with an aligning plate.

4. An automatic welding torch machine according to claim 1, characterized in that, A feeding seat is fixed on the rear-section feeding mechanism. The feeding front-back air cylinder is fixed in the middle of the upper end of the feeding seat. A number of feeding suction nozzles are distributed on the bag sucking plate. A pressing shaft is fixed at the front end of the feeding seat, and a pressing wheel is rotated on the pressing shaft.

5. The automatic welding torch machine according to claim 1, characterized in that, A corner cutting assembly is arranged on one side of the front end of the conveying section. The corner cutting assembly includes a corner cutting base, a corner cutting box body and a waste recycling box. A hand wheel is arranged behind the corner cutting base. The hand wheel is connected with an advancing and retracting lead screw. The advancing and retracting lead screw is in threaded transmission with a nut on the corner cutting box body. Front-back slide rails are fixed on the corner cutting base. The lower end of the corner cutting box body slides on the front-back slide rails. The waste recycling box is at the lower end of the corner cutting box body. An upper cutting knife and a lower cutting knife are installed on the corner cutting box body.

6. The automatic welding torch machine according to claim 5, characterized in that, A lower cutting air cylinder is installed at the lower end of the corner cutting box body. The lower cutting knife is fixed on the driving end of the lower cutting air cylinder. An upper cutting air cylinder is installed at the upper end of the corner cutting box body. The upper cutting knife is fixed on the driving end of the upper cutting air cylinder. Upper-lower slide rails are fixed on both sides of the corner cutting box body. Both the upper cutting knife and the lower cutting knife slide on the upper-lower slide rails. A funnel is arranged at the lower end of the corner cutting box body, and the upper end of the funnel is fixedly connected with the lower cutting knife.

7. The automatic welding torch machine according to claim 1, wherein The output end of the bag spout vibration plate is connected to a linear vibrator, and the pre-positioning mechanism includes a steering support, a steering motor is installed below the steering support, and the driving end of the steering motor is transmission-connected to a four-station turntable, a translation cylinder is installed on the four-station turntable, and the driving end of the translation cylinder is connected to a pneumatic clamp. A positioning support is fixed on one side of the steering support, and a clamping cylinder is fixed on the positioning support, and the driving end of the clamping cylinder is connected to an alignment clamp.

8. An automatic welding nozzle machine according to claim 1, characterized in that, A bag opening cylinder is provided on the front side of the nozzle pressing mechanism, and the driving end of the bag opening cylinder is connected to the bag opening suction nozzle. An upper pressure cylinder is provided on the upper end of the nozzle pressing mechanism, and the driving end of the upper pressure cylinder is connected to the upper pressure block. A lower pressure cylinder is provided on the lower end of the nozzle pressing mechanism, and the driving end of the lower pressure cylinder is connected to the lower pressure block. Heating pipes are installed inside the upper pressure blocks and the lower pressure blocks located on the front and middle sides of the conveying section, and water cooling devices are installed on the upper and lower pressure blocks located on the rear side of the conveying section.

9. The automatic welding torch machine according to claim 1, wherein The conveying section includes an upper conveying section and a lower conveying section. Conveying wheels are installed at both ends of the upper conveying section and the lower conveying section. An upper conveying belt is transmitted between the two upper conveying wheels, and a lower conveying belt is transmitted between the two lower conveying wheels. The upper and lower groups of conveying wheels are connected to conveying gears through shafts, and the conveying gears are meshed for transmission.

10. The automatic welding torch machine according to claim 1, characterized in that, A unloading motor is installed at one end of the unloading bracket, and both ends of the unloading conveyor belt are rotatably connected to unloading shafts. The end of the unloading shaft and the driving end of the unloading motor are both installed with transmission pulleys, and a transmission belt is transmitted between the transmission pulleys.

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