CN109834945B - Welding process of tire strip and inflating valve - Google Patents
Welding process of tire strip and inflating valve Download PDFInfo
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- CN109834945B CN109834945B CN201910041799.1A CN201910041799A CN109834945B CN 109834945 B CN109834945 B CN 109834945B CN 201910041799 A CN201910041799 A CN 201910041799A CN 109834945 B CN109834945 B CN 109834945B
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Abstract
The invention relates to a welding process of a tire strip and an inflating valve, which adopts full-automatic tire strip nozzle-attaching welding and fixing assembly line production and comprises the following steps: a) the tire tube enters a first conveyor belt of a printing, punching and nozzle pasting device to be punched, b) when the hole site of the tire tube processed in the step a) is conveyed to the position right below a rotary pressing and pasting mechanism, the rotary pressing and pasting mechanism is controlled to press the nozzle of the tire tube, c) the tire tube enters a fixed-length cutting device, and the fixed-length cutting device cuts the tire tube passing through the nozzle into tire strips; d) after the tire strip enters the ultrasonic welding device and the inflating valve is in place, a welding head of the ultrasonic welding assembly is attached to the inflating valve and provides certain pressure to ensure the welding effect; and after the pressing is in place, the ultrasonic welding assembly starts to work, and the welding operation is completed. The invention cancels the use of mucilage, improves the safety, and reduces the labor cost by the automatic operation of the equipment.
Description
Technical Field
The invention relates to a production process of an inner tube, in particular to a welding process of a tire strip and an inflating valve.
Background
The traditional inner tube production process is to spray glue on the valve rubber pad and then press the inner tube to realize the adhesion of the valve. In the actual production process, because the manufacture of the mucilage needs to use gasoline, great potential safety hazard exists, and the labor cost is high. So the removal of the mucilage is a big problem which is urgently needed to be solved in the inner tube production industry!
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a process for welding a tire strip and an inflating valve, which has high efficiency and good safety and can produce an inner tube with high attaching precision.
In order to achieve the purpose, the invention adopts the following technical scheme:
a welding process of tire strips and inflating valves adopts full-automatic tire strip tip welding and fixing assembly line production, the assembly line comprises a printing, punching and tip attaching device, a fixed-length cutting device and an ultrasonic welding device which are sequentially arranged in sequence according to the transmission direction of the assembly line, the printing, punching and tip attaching device comprises a printing mechanism, a punching mechanism, a tip attaching mechanism, a first photoelectric sensor and a first conveying belt and a second conveying belt which are respectively arranged on two sides of the punching mechanism, the second conveying belt avoids the tip attaching mechanism, the tip attaching mechanism comprises a rubber roller driving motor, a rotating cam mechanism, a rotating pressing and attaching mechanism and a rubber roller, the rubber roller is vertically arranged on a third frame, the rotating cam mechanism is fixed on the third frame and is positioned below the rubber roller, and the rubber roller is intermittently jacked through the rotation of the rotating cam mechanism, the ultrasonic welding device comprises a station switching mechanism and an ultrasonic welding mechanism, the station switching mechanism comprises a fifth rack, a sliding frame, conveying belts, a first servo motor and a second servo motor, the sliding frame is transversely arranged at the upper end of the fifth rack in a sliding manner and is driven to transversely move by the second servo motor, and the two conveying belts are arranged on the sliding frame side by side and are driven to rotate by the first servo motor fixed at one end of the sliding frame; the ultrasonic welding mechanism comprises a fixing frame, ultrasonic welding assemblies, guide air cylinders and a third photoelectric sensor, the fixing frame is vertically fixed on the sliding frame, the two guide air cylinders are respectively fixed with the fixing frame, the two ultrasonic welding assemblies are positioned above the welding bottom plate and aligned with the two conveying belts, the two ultrasonic welding assemblies are respectively driven by the two guide air cylinders to lift, the third photoelectric sensor is fixed at the bottom of the fixing frame, and the station switching mechanism drives the two conveying belts to alternately align with the discharge end of the fixed-length cutting device in turn;
the method comprises the following steps:
a) the tire tube enters a first conveying belt of the printing, punching and nozzle pasting device, feedback signals of corresponding sensors simultaneously act on the punching mechanism, and a knife edge of the punching mechanism is turned over to punch the tire tube;
b) through PLC calculation, when the hole site of the tire tube processed in the step a) is conveyed to the position right below the rotary pressing mechanism, the rotary pressing mechanism is controlled to rotate to the position right below at the same speed, meanwhile, the protruding part of the rotary cam mechanism rotates to the uppermost position to push the rubber roller to lift, and at the moment, the three mechanisms perform nozzle pressing action in the vertical direction, and then, the mechanisms continue to move to return to the original position;
c) the tyre tube normally flows out of the printing, punching and nozzle sticking device and enters a fixed-length cutting device, and the fixed-length cutting device cuts the tyre tube passing through the nozzle into a section of tyre strip;
d) when the third photoelectric sensor detects the inflating valve, the third photoelectric sensor feeds back a signal to the PLC control system, the PLC program controls the action of the first servo motor, and the high-precision conveying belt is driven, so that the inflating valve is accurately stopped under the ultrasonic welding assembly;
e) after the first servo motor is driven to enable the inflating valve to be in place, the guide air cylinder presses downwards, so that a welding head of the ultrasonic welding assembly is attached to the inflating valve and provides certain pressure to ensure the welding effect; after the tire strip is pressed down to the right position, the ultrasonic welding assembly starts to work to complete welding operation, and then the ultrasonic welding assembly is lifted to the original position through the guide air cylinder, and after the servo system receives a completion signal, the servo system drives the first servo motor to work to drive the tire strip of the welded valve to move forward by a distance which can be adjusted by an operator, so that the tire strip is stopped at the rear half section of the conveying belt.
As a preferable scheme: still be equipped with pressfitting follow-up mechanism on the carriage, pressfitting follow-up mechanism includes push down cylinder, clamp plate, support, pressure spring and linear guide, and two linear guide fix the both sides at the carriage, the both sides of support slip the cover respectively and establish two linear guide, the pressure spring sets up between support and linear guide's tip for the support is close to ultrasonic welding subassembly, the clamp plate is fixed on the support through push down cylinder, and aligns with the conveyer belt.
As a preferable scheme: the punching mechanism comprises a roller driving motor, a right-angle gear box, a roller and a knife edge, wherein the right-angle gear box is fixed on the rack, the roller is vertically arranged on the third rack and driven to lift by the right-angle gear box, the roller driving motor is arranged on one side of the roller, the driving roller rotates and lifts along with the roller, and the knife edge is arranged above the roller through shaft rotation.
As a preferable scheme: the ultrasonic welding mechanism further comprises a welding bottom plate, the welding bottom plate is fixed on the sliding frame, the cross section of the welding bottom plate is trapezoidal, the welding bottom plate is located above the two conveying belts, and a gap is reserved between the welding bottom plate and the two conveying belts.
As a preferable scheme: the two ends of the fifth rack are provided with idler wheels, the bottom of the sliding frame is transversely provided with a guide rail, and the fifth rack and the sliding frame are connected in a transverse sliding mode through the idler wheels and the guide rail in a matched mode.
As a preferable scheme: and the second servo motor is fixed in the middle of the fifth rack and drives the sliding frame to transversely move through the ball screw assembly.
As a preferable scheme: the device is decided to fixed length includes fourth frame, electric heat cut-off knife, spreads into the conveyer belt and spreads the conveyer belt into, it sets up in the front portion of fourth frame along direction of transfer to spread the conveyer belt, it sets up at the well rear portion of fourth frame along direction of transfer to spread the conveyer belt, the electric heat cut-off knife is fixed in the fourth frame that spreads into the conveyer belt and spread between the conveyer belt, it still is equipped with second photoelectric sensor to spread the conveyer belt.
The process of the invention abandons the traditional sticking mode between the tire strip and the inflating valve, adopts the ultrasonic welding component to firmly weld the pre-positioned tire strip and the inflating valve, reduces the use of glue, improves the safety, and reduces the labor cost due to the automatic operation of the equipment.
The printing, punching and nozzle pasting device, the fixed-length cutting device and the ultrasonic welding device are arranged, so that the inflating valve and the tire strip are welded together in an ultrasonic welding mode, mucilage is removed, and the safety is improved.
The ultrasonic welding device is double-station, and gaps are generated between the tire strips after the tire tube is cut to a fixed length. The station switching time of the station switching device of the ultrasonic welding device is controlled, so that the station switching device can complete switching in the time difference generated by the tire strip gap, the purpose of stable switching is achieved, the shunting welding operation is realized, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of an inner tube extrusion line;
FIG. 2 is a schematic structural view of a receiving device of the tire tube extruding line;
FIG. 3 is a schematic structural view of a controlled shrinkage device of a tire tube extrusion line;
FIG. 4 is a schematic side view of a controlled shrinkage device for a tire tube extrusion line;
FIG. 5 is a schematic side view of a printing, punching and nozzle attaching device of an inner tire extruding line;
FIG. 6 is a schematic top view of a printing, punching and nozzle attaching device of an inner tire extruding line;
FIG. 7 is a schematic structural diagram of a fixed-length cutting device of an inner tube extrusion production line;
FIG. 8 is a schematic top view of an ultrasonic welding apparatus for an inner tube extrusion line;
FIG. 9 is a schematic side view of an ultrasonic welding apparatus for an inner tube extrusion line;
FIG. 10 is a schematic structural view of a spraying and drying device of an inner tube extrusion line;
FIG. 11 is a schematic structural view of an intelligent shunting device of an inner tire extrusion line;
FIG. 12 is a schematic side view of an intelligent shunting device of an inner tire extrusion line;
fig. 13 is a schematic view of a transfer structure of a turning plate, a cylinder and a frame of the intelligent flow dividing device of the inner tube extrusion line.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in figure 1, the novel inner tube extrusion production line comprises a receiving device, a control contraction device, a printing, punching and nozzle pasting device, a fixed-length cutting device, an ultrasonic welding device, a spraying and drying device and an intelligent shunting device which are sequentially arranged along the transmission direction of the production line, wherein the printing, punching and nozzle pasting device comprises a printing mechanism 31, a punching mechanism, a nozzle pasting mechanism, a first photoelectric sensor 34, a first conveying belt 35 and a second conveying belt 36 which are respectively arranged at the two sides of the punching mechanism, the second conveying belt 36 avoids the nozzle pasting mechanism,
as shown in fig. 8 and 9, the ultrasonic welding device includes a station switching mechanism and an ultrasonic welding mechanism, the station switching mechanism includes a fifth frame 50, a sliding frame 57, a conveyor belt 51, a first servo motor 52 and a second servo motor 53, rollers 55 are disposed at two ends of the fifth frame 50, a guide rail 56 is disposed at the bottom of the sliding frame 57 in the transverse direction, the fifth frame 50 and the sliding frame 57 are connected in the transverse direction by the cooperation of the rollers 55 and the guide rail 56, the second servo motor 53 is fixed in the middle of the fifth frame 50 and drives the sliding frame 57 to move in the transverse direction by a ball screw assembly 54, and two conveyor belts 51 are disposed side by side on the sliding frame 57 and driven to rotate by the first servo motor 52 fixed at one end of the sliding frame 57;
the sliding frame 57 is further provided with a pressing follow-up mechanism, the pressing follow-up mechanism comprises a pressing cylinder 58, a pressing plate 59, a support 510, a pressure spring 51 and linear guide rails 512, the two linear guide rails 512 are fixed on two sides of the sliding frame, two sides of the support 510 are respectively sleeved on the two linear guide rails 512 in a sliding manner, the pressure spring 51 is arranged between the ends of the support 510 and the linear guide rails 512, so that the support 510 is close to an ultrasonic welding component 513, the pressing plate 59 is fixed on the support 510 through the pressing cylinder 58 and is aligned with the conveying belts 51, the ultrasonic welding mechanism comprises a fixing frame, an ultrasonic welding component 513, a guide cylinder 514, a third photoelectric sensor 515 and a welding bottom plate 516, the welding bottom plate 516 with a trapezoidal cross section is fixed on the sliding frame 57 and is positioned above the two conveying belts 51, the fixing frame is vertically fixed on the sliding frame 57, and the two guide cylinders 514 are respectively fixed with the fixing frame, the two ultrasonic welding assemblies 513 are positioned above the welding bottom plate 516 and aligned with the two conveying belts 51, the two ultrasonic welding assemblies 513 are driven to lift by two guide cylinders 514 respectively, and the third photoelectric sensor 515 is fixed at the bottom of the fixing frame;
the station switching mechanism drives the two conveying belts to alternately align with the discharge end of the fixed-length cutting device.
When the tire strip enters the station, the tire strip at the front section of the valve can pass through the third photoelectric sensor 515 due to height problems without signal feedback, when the valve flows to the third photoelectric sensor 515, the third photoelectric sensor 515 feeds back a signal to the PLC control system, the action of the first servo motor 52 is controlled through PLC programming, the high-precision conveying belt 51 is driven, the position of the valve is accurately stopped under the ultrasonic welding component 513, and the position above the welding bottom plate 516 is controlled.
The weld bottom plate 516 is flat and trapezoidal in shape and is mounted horizontally on the conveyor belt 51 to control the gap so that the tire strip can pass through smoothly. After the first servo motor 52 is driven to complete positioning (the valve is in place), the guiding cylinder 514 is pressed down, so that the welding head of the ultrasonic welding assembly 513 is attached to the valve and provides a certain pressure to ensure the welding effect. After the ultrasonic welding assembly is pressed down to the proper position, the ultrasonic welding assembly starts to work to complete welding operation, and then the ultrasonic welding assembly is lifted to the original position through the guide air cylinder 514 to output the finished model.
After receiving the completion signal, the servo system drives the first servo motor 52 to operate, so as to drive the tire strip to move forward by a distance which can be adjusted by an operator, so that the tire strip is separated from the welding bottom plate 516 and stops at the rear half section of the conveying belt 51. Here, if the pressing follow-up mechanism is selected, the pressing plate 59 is pressed down by the pressing cylinder 58 while being pressed down by the guide cylinder 514. After the first servomotor 52 has traveled the operator-specified distance, the pressure plate 59 is raised by the hold-down cylinder 58. In between, the clamp plate can pressfitting on the child strip, and along with the removal of child strip, passive drive pressfitting follower moves backward. After the downward-pressing air cylinder 58 is lifted, the original position is restored by the cooperation of the pressure spring 51 on the pressing follow-up mechanism and the linear guide rail 512.
The switching of the work stations is realized by feeding back a signal to the control system and controlling the work station switching device through the PLC when the third photoelectric sensor 515 detects the air valve. The station switching device can control the station in-place condition in the process of station switching with high precision, and ensures the precision of equipment.
The time control is that the work cycle precision of a single station is strictly controlled, the time is shorter than the time of a tire strip flowing into a welding station, namely if a second station enters the welding operation, a first station flows into the tire strip, and the tire strip does not move in place after the second station finishes the whole welding process. Thus, when the tire strip of the first station is in place, the station switching can be carried out immediately. After the stations are switched, the tire strips welded on the second station and the entering tire strips flow backwards at the same time, the interference phenomenon cannot occur, and the mechanism of online double-station work is realized.
The receiving device shown in fig. 2 comprises a first frame 10, a flat belt mechanism 11, a plate turning belt mechanism 12, a tire pressing and plate turning mechanism 13 and a lifting cylinder 14, wherein the flat belt mechanism 11 is fixed on the first frame 10, one end of the plate turning belt mechanism 12 is hinged to the upper portion of the first frame 10, the other end of the plate turning belt mechanism 12 is hinged to the lower portion of the first frame 10 through the lifting cylinder 14, and the tire pressing and plate turning mechanism 13 is arranged on the plate turning belt mechanism 12. The first frame 10 is also provided with a variable frequency motor which provides driving force for the system through chain wheel and chain transmission among the variable frequency motor, the flat belt mechanism 11 and the flap belt mechanism 12. The plate-turning belt mechanism is turned over up and down through the air inlet and outlet switching of the lifting air cylinder. During the use of the whole assembly line, the production speed of the tire tube can be controlled by adjusting the linear speed of the section.
As shown in fig. 3 and 4, the contraction control device includes a plurality of cooling rollers 21 disposed on the second frame 20 in a vertically staggered arrangement, each cooling roller 21 has a water inlet 22 and a water outlet 23, and each cooling roller 21 is driven by an independent transmission device 24 with a speed adjusting function.
The cooling roller 21 is rotatably arranged on the second frame 20 through a hollow rotating shaft 25, is fixed with one end of the hollow rotating shaft 25 through a sealing cover 27 and is communicated with the water inlet 22 and the water outlet 23, the middle part of the hollow rotating shaft 25 is connected with a transmission device 24, and the other end of the hollow rotating shaft 25 is provided with a rotary joint 26 communicated with a cooling water pipe.
The shrinkage control device consists of 7 cooling rollers, a second frame and 7 sets of transmission devices. The cooling roller is internally communicated with circulating cooling water through a rotary joint. The tire tube enters a first cooling roller of the shrinkage control device after coming out of the receiving device, winds up and down the roller in an S-shaped route, and is driven from front to back. In the transmission process, the tire tube is applied to the cooling roller, and the heat exchange with the cooling water in the roller is realized through the metal surface on the surface of the roller, so that the cooling purpose is realized. Because of the characteristics of rubber products (expansion with heat and contraction with cold), the temperature difference on each roller is gradually reduced when the rubber tube is cooled, and the speed of each roller is controlled by using seven sets of transmission devices capable of independently controlling the driving speed in combination with the conditions that the tire tube passes through the lower surface of the roller due to self weight, such as tire length stretching and the like, so that the speed difference of the front roller and the rear roller is accurately controlled, the shrinkage or stretching amount of the tire tube is eliminated in the conveying process, and the purpose of controlling shrinkage is realized.
As shown in fig. 5 and 6, the printing mechanism 31 includes a frame, a power cylinder, a passive roller set and a magnetic detection switch, the frame is fixed on a third frame, the magnetic detection switch is arranged at the lower part of the frame, the power cylinder is hinged at the upper end of the frame, one side of the passive roller set is hinged at the middle part of the frame, the other side of the passive roller set is hinged on the power cylinder, the passive roller set includes three rollers, when the tyre tube flows through from the printing, punching and nozzle-pasting device, the lifting of the power cylinder on the printing mechanism 31 is controlled by receiving the feedback signal of the second photoelectric sensor 44 on the fixed-length cutting device (subsequent process section), the passive roller set on the printing mechanism follows up after contacting the first conveyor belt, one roller carries the printing agent, the other roller carries the printing agent, after the printing agent is stuck on the printing agent during the rotation, the printing is carried out on the third roller, when the third roller rotates, printing the typeface on the child pipe, through the detection of magnetism detection switch, the cylinder lifting is controlled to the rotatory back a week of third roller.
The punching mechanism comprises a roller driving motor 32, a right-angle gear box 312, a roller 38 and a knife edge 39, wherein the right-angle gear box 312 is fixed on the rack, the roller 38 is vertically arranged on the third rack 30 and is driven by the right-angle gear box 312 to adjust the lifting, the roller driving motor 32 is arranged on one side of the roller 38, the driving roller 38 rotates and is lifted together with the roller 38, and the knife edge 39 is arranged above the roller 38 through shaft rotation and is driven by a servo motor. The feedback signal of the second photoelectric sensor 44 acts on the punching mechanism 2 at the same time, the servo motor is controlled to start and stop through the PLC, the turning punching of the knife edge is realized, the punching linear speed is consistent with the linear speed of the tire tube when punching is guaranteed, and the punching quality is ensured. Because the tyre tube has different thickness requirements, the gap between the knife edge and the roller needs to be controlled, the aim of only opening the tyre tube on the upper layer without damaging the tyre tube on the lower layer is achieved, the right-angle gear box is arranged at the position, the roller is a metal roller with vertical freedom, and the control aim is achieved by the rotation of the gear box and the up-and-down lifting of the metal roller.
Paste mouth mechanism and include rubber roll driving motor 33, rotatory cam mechanism 311, rotatory mechanism 310 and the rubber roll 37 of pressing, rubber roll 37 sets up perpendicularly in third frame 30, rotatory cam mechanism 311 is fixed on third frame 30 and is located rubber roll 37 below, and rotation intermittence through rotatory cam mechanism 311 is with the jacking of rubber roll 37, rubber roll driving motor 33 sets up in rubber roll 37 one side, and drive rubber roll 37 rotates and together goes up and down along with rubber roll 37, rotatory mechanism 310 of pressing sets up the top at the rubber roll. The rubber roller is a vertical freedom degree rubber roller, after the hole is punched in the tire tube, the position of the tire tube hole is controlled to be conveyed to the position right below the rotary pressing and pasting mechanism through PLC calculation, and the rotary pressing and pasting mechanism also rotates to the position right below the rotary pressing and pasting mechanism at the same speed. Meanwhile, the protruding part of the rotary cam mechanism rotates to the uppermost part, and the vertical-degree-of-freedom rubber roller is pushed to lift. At the moment, the three move to press the mouth in the vertical direction, thus realizing the purpose of pasting the mouth. Then, each mechanism continues to move and returns to the original position. And after the pressing and pasting are finished, the tyre tube normally flows out and enters a downward moving process.
The conveying system of the printing, punching and nozzle sticking device adopts a high-precision steel wire synchronous belt for conveying, so that the tire tube cannot be subjected to center deviation due to deviation of a belt during conveying, and the air valve nozzle sticking device cannot be accurately stuck to an air hole. In the roller winding mode of the synchronous belt, the rubber roller and the roller are successfully separated from a belt system of the conveying belt through the segmentation (divided into a first conveying belt and a second conveying belt) of the conveying belt and the s-shaped avoidance mode, so that the phenomenon that the rubber roller and the roller move in the vertical direction to interfere with the conveying belt and the circumference of the conveying belt is changed, the linear velocity of the conveying belt is disordered, and the accuracy of nozzle pasting is finally influenced is avoided.
As shown in fig. 7, the fixed-length cutting device includes a fourth frame 40, an electric heating cutter 42, an incoming conveyer belt 41 and an outgoing conveyer belt 43, the incoming conveyer belt 41 is disposed at the front portion of the fourth frame 40 along the conveying direction, the outgoing conveyer belt 43 is disposed at the middle rear portion of the fourth frame 40 along the conveying direction, the electric heating cutter 42 is fixed on the fourth frame 40 between the incoming conveyer belt 41 and the outgoing conveyer belt 43, and the outgoing conveyer belt 43 is further provided with a second photoelectric sensor 44.
The tire tube enters from the incoming conveyor 41, and when the head of the tire tube is detected by the second photoelectric sensor 44, a signal is fed back, and the printing, punching and nozzle attaching are executed by the front section (printing, punching and nozzle attaching device) under the control of the PLC, so that the electric cutter executes the cutting operation. The tire strips are cut and produced, and a certain gap is formed between the tire strips by controlling the speed difference between the transmission conveyor belt 41 and the transmission conveyor belt 43, so that the subsequent station operation is facilitated. The gap is generated so that the second photoelectric sensor 44 can detect the head position of the next bead, feed back a signal, and enter the next bead cutting process. The relative position of the second photoelectric sensor 44 relative to the electric heating cutter is adjusted, so that the length of the tire strip can be adjusted. In normal production, the second photoelectric sensor 44 is fixed at the current position after being adjusted, that is, the position of the head of the tire strip detected is fixed with the position of the cutter during working, so that the cut tire strip has a fixed length, and the purpose of fixing the length is achieved.
As shown in fig. 10, the spraying and drying device includes a sixth rack 60, a plurality of power rollers disposed at the front end of the sixth rack 60 along the conveying direction, two atomizing nozzles 62 for spraying the barrier fluid disposed above and below the power rollers, a cover 61 disposed above the power rollers, a collecting hopper 63 disposed below the power rollers for collecting the barrier fluid, a transmission network chain 64 disposed at the middle and rear ends of the sixth rack 60 along the conveying direction, and a plurality of infrared heating lamps 65 disposed above and below the transmission network chain 64.
When the tire strip enters the power roller, the upper surface and the lower surface of the tire strip are sprayed with the spacer fluid by the upper preset atomizing nozzle and the lower preset atomizing nozzle. The transmission of the power roller is carried out at the position, so that the spraying of the isolation liquid is ensured. The sprayed tire strip enters a transmission net chain 64, and after the tire strip flows into the transmission net chain 64, the drying operation of the spraying liquid on the surface of the tire strip is carried out through two pairs of infrared heating lamps which are preset up and down. Considering that the lower surface of the tire strip needs to be dried, and combining the characteristic of high net chain penetration rate, the upper surface and the lower surface can be dried simultaneously.
As shown in fig. 11, 12 and 13, the intelligent shunting device includes a seventh rack 70, air cylinders 71, turning plates 74, transmission rollers 75, a station material storage plate 77 and a fifth photoelectric sensor 79, wherein a plurality of transmission rollers 75 are arranged on the seventh rack 70 at intervals, the turning plates 74 are further arranged between two adjacent transmission rollers 75, the turning plates 74 are inverted L-shaped, the upper portions of the turning plates 74 are alternately hinged on both sides of the upper portion of the seventh rack 70, the lower portions of the turning plates 74 hinged on the same side are hinged on the connecting rods 73, one end of the piston rods 72 of the two air cylinders 71 is hinged with the two connecting rods 73, the other end of the two air cylinders 71 is hinged on the seventh rack 70, the two sides of the seventh rack 70 are further provided with a plurality of station material storage plates 77, the station material storage plate 77 is further provided with a long strip-shaped through slot 78, the fifth photoelectric sensor 79 is arranged in the long strip-shaped through slot 78, the seventh rack 70 is further provided with a fourth photoelectric sensor 76, and one of the station material storage plates 77 is further butted with a centralized dispatching material storage plate 710.
And (3) realizing shunting: after the dried tire strip flows into the transfer roller 75, the position of the tire strip is detected by the fourth photoelectric sensor 76. After the fourth photoelectric sensor 76 feeds back the in-place signal, the cylinder of the turning plate on the corresponding side is controlled to extend and retract through the processing of the PLC program. The telescopic push connecting rod of cylinder rises, drives the board that turns over of same one side and rotates around the articulated shaft of seventh frame one side, makes the board that turns over produce the large angle slope, because the child strip is to lieing in turning over the board, and the child strip can rely on the dead weight to slide out smoothly and turn over the board and get into station storage plate 77 or centralized dispatch storage plate 710. The cylinder is used as an actuating mechanism, and the initial position can be quickly recovered, so that the production line can continuously run. Through the work of independent three-section left and right panel turnover mechanism, can shunt the child strip to arbitrary storage area, realize the reposition of redundant personnel purpose.
The invention has the following advantages:
(1) the traditional process is changed, the process of punching the tire tube and pre-releasing the inflating valve through the printing, punching and nozzle sticking device and welding the inflating valve and the tire tube through the ultrasonic welding device perfectly replaces the traditional process, and the removal of the mucilage is a great breakthrough in the tire tube production industry!
(2) The cooling mode is improved, the water tank is replaced by the cooling roller, the shrinkage rate of the tire tube is controlled, and blow-drying noise is removed.
(3) The external separant is changed, and a spraying form is adopted, so that the environmental pollution of the operation space is reduced.
(4) The newly-increased intelligent logistics device eliminates direct interference between personnel and production equipment, and improves personnel safety. Through a background control system, the productivity is reasonably distributed, and the maximum efficiency is realized.
It should be noted that the above embodiments are merely representative examples of the present invention. Many variations of the invention are possible. Any simple modification, equivalent change and modification of the above embodiments according to the spirit of the present invention should be considered to be within the protection scope of the present invention.
Claims (6)
1. A welding process of a tire strip and an inflating valve is characterized in that: adopt full-automatic child strip subsides mouth welded fastening assembly line production, this assembly line includes the printing that sets gradually according to assembly line direction of transfer and punches a mouthful device, fixed length cutting device and ultrasonic welding device, printing punch a mouthful device includes printing mechanism (31), the mechanism of punching, pastes mouth mechanism, first photoelectric sensor (34) and sets up respectively in the first conveyer belt (35), the second conveyer belt (36) of mechanism both sides of punching along assembly line direction set gradually on third frame (30), and the mouth mechanism is dodged to second conveyer belt (36), paste mouth mechanism and include rubber roll driving motor (33), rotatory cam mechanism (311), rotatory pressing mechanism (310) and rubber roll (37), rubber roll (37) set up perpendicularly on third frame (30), rotatory cam mechanism (311) are fixed on third frame (30) and are located rubber roll (37) below, the rubber roller (37) is intermittently jacked up through the rotation of the rotary cam mechanism (311), the rubber roller driving motor (33) is arranged on one side of the rubber roller (37) and drives the rubber roller (37) to rotate and lift along with the rubber roller (37), the rotary pressing mechanism (310) is arranged above the rubber roller, the ultrasonic welding device comprises a station switching mechanism and an ultrasonic welding mechanism, the station switching mechanism comprises a fifth rack (50), a sliding frame (57), a conveying belt (51), a first servo motor (52) and a second servo motor (53), the sliding frame (57) is transversely arranged at the upper end of the fifth frame (50) in a sliding way, and is driven by a second servo motor (53) to move transversely, two conveyer belts (51) are arranged on the sliding frame (57) side by side, and is driven to rotate by a first servo motor (52) fixed at one end of the sliding frame (57); the pressing follow-up mechanism is further arranged on the sliding frame (57) and comprises a pressing cylinder (58), a pressing plate (59), a support (510), a pressure spring (51) and linear guide rails (512), the two linear guide rails (512) are fixed on two sides of the sliding frame, two sides of the support (510) are respectively sleeved on the two linear guide rails (512) in a sliding mode, the pressure spring (51) is arranged between the support (510) and the end portions of the linear guide rails (512), the support (510) is close to the ultrasonic welding assembly (513), and the pressing plate (59) is fixed on the support (510) through the pressing cylinder (58) and is aligned with the conveying belt (51); the ultrasonic welding mechanism comprises a fixing frame, ultrasonic welding assemblies (513), guide air cylinders (514) and a third photoelectric sensor (515), the fixing frame is vertically fixed on a sliding frame (57), the two guide air cylinders (514) are respectively fixed with the fixing frame, the two ultrasonic welding assemblies (513) are positioned above a welding bottom plate (516) and aligned with the two conveying belts (51), the two ultrasonic welding assemblies (513) are respectively driven by the two guide air cylinders (514) to lift independently, the third photoelectric sensor (515) is fixed at the bottom of the fixing frame, and the station switching mechanism drives the two conveying belts to align with the discharge end of the fixed-length cutting device alternately in turn;
the method comprises the following steps:
a) the tyre tube enters a first conveyor belt (35) of the printing, punching and nozzle pasting device, feedback signals of corresponding sensors simultaneously act on the punching mechanism, and a knife edge of the punching mechanism is turned over to punch the tyre tube;
b) through PLC calculation, when the hole site of the tire tube processed in the step a) is conveyed to the position right below the rotary pressing mechanism (310), the rotary pressing mechanism (310) is controlled to rotate to the position right below at the same speed, meanwhile, the protruding part of the rotary cam mechanism (311) rotates to the uppermost position, the rubber roller (37) is pushed to be lifted, the three parts perform nozzle pressing action in the vertical direction, and then all the mechanisms continue to move and return to the original position;
c) the tyre tube normally flows out of the printing, punching and nozzle sticking device and enters a fixed-length cutting device, and the fixed-length cutting device cuts the tyre tube passing through the nozzle into a section of tyre strip;
d) when the tire strip enters an ultrasonic welding device, when the third photoelectric sensor (515) detects the valve, the third photoelectric sensor (515) feeds back a signal to a PLC control system, and the PLC controls the action of a first servo motor (52) through programming to drive a high-precision conveying belt (51), so that the position of the valve is accurately stopped right below an ultrasonic welding assembly (513);
e) after the first servo motor (52) is driven to enable the valve to be in place, the guide air cylinder (514) is pressed down, so that a welding head of the ultrasonic welding assembly (513) is attached to the valve and certain pressure is provided to ensure the welding effect; after the tire strip is pressed down to the right position, the ultrasonic welding assembly starts to work to complete welding operation, and then the tire strip is lifted to the original position through the guide air cylinder (514), and after the servo system receives a completion signal, the servo system drives the first servo motor (52) to work to drive the tire strip of which the air valve is welded to move forward for a distance which can be adjusted by an operator, so that the tire strip is stopped at the rear half section of the conveying belt (51).
2. The process of claim 1 for welding a bead to a valve, wherein: the punching mechanism comprises a roller driving motor (32), a right-angle gear box (312), a roller (38) and a knife edge (39), wherein the right-angle gear box (312) is fixed on the rack, the roller (38) is vertically arranged on a third rack (30) and is driven by the right-angle gear box (312) to adjust and lift, the roller driving motor (32) is arranged on one side of the roller (38), the driving roller (38) rotates and lifts along with the roller (38), and the knife edge (39) is arranged above the roller (38) through shaft rotation.
3. The process of claim 1 for welding a bead to a valve, wherein: the ultrasonic welding mechanism further comprises a welding bottom plate (516), the welding bottom plate (516) is fixed on the sliding frame (57), the cross section of the welding bottom plate is trapezoidal, the welding bottom plate (516) is located above the two conveying belts (51), and a gap is reserved between the welding bottom plate and the two conveying belts (51).
4. The process of claim 1 for welding a bead to a valve, wherein: the two ends of the fifth rack (50) are provided with rollers (55), the bottom of the sliding frame (57) is transversely provided with a guide rail (56), and the fifth rack (50) and the sliding frame (57) are in transverse sliding connection through the matching of the rollers (55) and the guide rail (56).
5. The process of claim 1 for welding a bead to a valve, wherein: the second servo motor (53) is fixed in the middle of the fifth frame (50) and drives the sliding frame (57) to move transversely through the ball screw assembly (54).
6. The process of claim 1 for welding a bead to a valve, wherein: the device is decided to fixed length includes fourth frame (40), electric heat cut-off knife (42), spreads into conveyer belt (41) and spreads conveyer belt (43) into, it sets up in the front portion of fourth frame (40) along direction of transfer to spread conveyer belt (41) into, it sets up at fourth frame (40) along direction of transfer's well rear portion to spread conveyer belt (43), electric heat cut-off knife (42) are fixed and are spread on fourth frame (40) between conveyer belt (41) and spread conveyer belt (43) into, it still is equipped with second photoelectric sensor (44) to spread conveyer belt (43).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910041799.1A CN109834945B (en) | 2019-01-16 | 2019-01-16 | Welding process of tire strip and inflating valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910041799.1A CN109834945B (en) | 2019-01-16 | 2019-01-16 | Welding process of tire strip and inflating valve |
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| CN109834945A CN109834945A (en) | 2019-06-04 |
| CN109834945B true CN109834945B (en) | 2021-07-20 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113635559A (en) * | 2021-08-16 | 2021-11-12 | 赛维精密科技(广东)有限公司 | Punching connection process for PET (polyethylene terephthalate) belt |
| CN114834049B (en) * | 2022-05-06 | 2023-09-29 | 漳州迈邦自动化设备有限公司 | Ultrasonic welding device and tire processing production line |
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| CN109834945A (en) | 2019-06-04 |
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Address after: 310018 No. 1, No. 1 Street, Qiantang District, Hangzhou, Zhejiang Patentee after: Zhongce Rubber Group Co.,Ltd. Address before: 310018 No.2, 10th Street, economic and Technological Development Zone, Jianggan District, Hangzhou City, Zhejiang Province Patentee before: ZHONGCE RUBBER GROUP Co.,Ltd. |