Large-diameter tunnel air duct production equipment

Abstract

The invention relates to the technical field of tunnel air duct production equipment, and particularly discloses large-diameter tunnel air duct production equipment, which comprises at least two discharging mechanisms, at least two air duct conveying mechanisms, at least two air duct conveying mechanisms, at least two air duct conveying mechanisms and at least two air duct conveying mechanisms, the splicing welding group is arranged at the downstream of the discharging mechanisms and is used for carrying out heat seal splicing on the air duct cloth units unwound by the at least two discharging mechanisms; the back welding group is used for welding the hanging buckle back on the air duct cloth; and the drum-forming folding group is arranged at the downstream of the back welding group and is used for folding the two sides of the air drum cloth towards the middle direction of the air drum cloth. According to the large-caliber tunnel air duct production line, large-caliber tunnel air ducts can be produced, all links of air duct production are effectively integrated, continuous production without human intervention is achieved, quality control is guaranteed, and production efficiency is greatly improved; and in the aspect of employment of workers, only 1-2 persons are needed to control the equipment, and only feeding, guarding and maintenance of the production state are needed, so that the labor intensity is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel air duct production equipment, and specifically discloses a large-diameter tunnel air duct production equipment. Background Art

[0003] Tunnel ducts usually use engineering plastic cloth to heat-synthesize the cylinder body to become ventilation ducts. Its production process is an extension of the traditional mining duct manufacturing process. The traditional mining duct manufacturing process is: using a small single-head hot air heat sealing machine for welding, relying on manual fixed-length cutting, and then moving to the hot air machine for welding. The feeding, edge alignment, and finishing during the welding process are also completed by personnel at each station. The maximum diameter can be 1 meter and the length can only be 20 meters (because the material has a certain elasticity, manual feeding and edge alignment rely entirely on human feeling and reference to the marks on the material. The longer the length, the more serious the misalignment). The speed of producing the duct is 2-4 meters / min, and it requires 5-8 people to cooperate to complete it. The diameter of the tunnel duct often exceeds 2 meters (the unfolded width is 6.28 meters), and the length is basically required to be more than 50 meters. The splicing process must be used to make the tunnel duct. In addition to the ultra-long length requirement, the forming and production of the tunnel duct cannot be met by small single-head hot air equipment and unlimited manpower. Summary of the invention

[0004] The object of the present invention is to solve the above-mentioned problem and to provide a production equipment capable of producing large-diameter tunnel air ducts, which can realize continuous production, reduce the number of workers and improve production efficiency.

[0005] The purpose of the present invention is achieved through the following technical solution: a large-diameter tunnel wind tube production equipment, comprising: At least two unwinding mechanisms for unwinding the air duct cloth; A splicing and welding group is arranged downstream of the unwinding mechanism and is used for heat-sealing and splicing the air duct cloth units unwinding from at least two unwinding mechanisms; A spine welding group is arranged downstream of the splicing welding group; the spine welding group includes a spine roll installation structure for unwinding the hook spine, a spine unfolding mechanism for unfolding the unwound hook spine, a spine welding mechanism for heat-sealing and welding the unfolded hook spine to the surface of the spliced ​​air duct cloth, a spine welding pressing roller group for pressing the welded hook spine and air duct cloth, and a spine welding traction roller group for traction the air duct cloth welded with the hook spine to the downstream; A tube forming and folding group is arranged downstream of the spine welding group and is used to fold the two sides of the air tube cloth toward the middle direction; The tube welding group is arranged downstream of the tube folding group and is used for heat-sealing and welding the folded air duct cloth into shape.

[0006] Furthermore, the splicing welding group includes a splicing welding traction roller group, a welding steel pressure roller group, a splicing welding air gun, an air gun inlet and outlet cylinder and a booster fan which are respectively arranged on the frame; the air gun inlet and outlet cylinder is connected to the splicing welding air gun for controlling the movement of the splicing welding air gun; the booster fan is connected to the splicing welding air gun, the welding steel pressure roller group is used to press the air duct cloth after welding, and the splicing welding traction roller group is located downstream of the welding steel pressure roller group for pulling the pressed air duct cloth downstream.

[0007] The splicing welding air gun includes an air gun body, an air gun joint arranged at the upper end of the air gun body, a nozzle arranged at the lower end of the air gun body, and a thermocouple arranged inside the air gun body; the air gun joint is connected to the booster fan, and the air gun body is connected to the air inlet and outlet cylinders of the air gun.

[0008] The spine unfolding mechanism includes an unfolding base plate, an unfolding beak arranged at the front end of the unfolding base plate, and two unfolding pressure wheel frames arranged on the upper surface of the unfolding base plate; the rear end of the unfolding beak expands to both sides so that it can stretch out the two adhesive parts of the hook spine; an avoidance gap is formed between the two unfolding pressure wheel frames for the hook part of the hook spine to pass through; and, unfolding pressure wheels are symmetrically arranged on the two unfolding pressure wheel frames, and a gap is formed between the unfolding pressure wheels and the unfolding base plate for the two adhesive parts of the hook spine to pass through, and the unfolding pressure wheels on the two unfolding pressure wheel frames are both inclined so that the unfolding pressure wheels can guide the two adhesive parts of the hook spine to the opening direction.

[0009] The spine welding mechanism includes an air gun up and down moving cylinder, an air gun left and right moving slide rail arranged on the air gun up and down moving cylinder, two spine welding air guns arranged on the air gun left and right moving slide rails through air gun left and right moving sliders, two air gun left and right moving cylinders fixed on the air gun left and right moving slide rails and respectively used to push the two spine welding air guns, and a spine welding booster fan respectively connected to the two spine welding air guns; the structures of the two spine welding air guns are the same as that of the splicing welding air gun, and are respectively used to weld the two adhesive parts of the hook spine to the surface of the air duct cloth.

[0010] The tube forming and folding group comprises a folding mechanism and two folding and arranging rods respectively arranged downstream of the folding mechanism; The folding mechanism includes a folding support frame, a support shaft mounting seat arranged on the folding support frame and movable up and down, a folding support shaft mounted on the support shaft mounting seat, and a support shaft lifting mechanism connected to the support shaft mounting seat and used for driving the support shaft mounting seat to move up and down; the length of the folding support shaft is smaller than the width of the spliced ​​air duct cloth, so that after the air duct is arranged on it, both sides of the air duct cloth can be folded downward to form a folded portion; two folding arrangement rods are respectively used for arranging the folded portions on both sides of the air duct cloth.

[0011] The folding and arranging rod comprises a main supporting rod for supporting the folding part, and a first guiding supporting rod and a second guiding supporting rod respectively arranged on the main supporting rod; the first guiding supporting rod and the second guiding supporting rod are arranged obliquely to guide the folding part to the center of the air duct cloth.

[0012] The tube welding group includes a tube welding mechanism for welding the folded parts on both sides of the wind tube cloth together, a tube welding pressure roller group arranged downstream of the tube welding mechanism, and a tube traction roller group arranged downstream of the tube welding pressure roller group.

[0013] As another embodiment, the large-diameter tunnel wind tube production equipment further includes a finished product folding group disposed downstream of the tube welding group; The finished product folding group comprises a lifting bracket, two folding reciprocating slide rails which are arranged on the lifting bracket and can be lifted, and folding roller assemblies which are respectively installed on the two folding reciprocating slide rails via folding reciprocating sliders at both ends; The folding roller assembly includes a first rotating box motor and a second rotating box motor respectively installed on two folding reciprocating sliders, a first rotating box connected to the first rotating box motor, a second rotating box connected to the second rotating box motor, a folding roller driving motor arranged inside the first rotating box, a driving gear installed on the rotating shaft of the folding roller driving motor, a first auxiliary gear and a second auxiliary gear respectively meshed with the driving gear, a first folding roller connected between the first auxiliary gear and the second rotating box, and a second folding roller connected between the second auxiliary gear and the second rotating box; the first auxiliary gear and the second auxiliary gear have opposite rotation directions.

[0014] As another embodiment, a post-tube traction group is further provided between the tube welding group and the finished product folding group; The post-bundling traction group comprises a bow support mechanism and a post-bundling traction roller group arranged downstream of the bow support mechanism; The bow support mechanism includes a fixed seat, a bow support slide rail arranged on the fixed seat, two rotating disks respectively installed at both ends of the bow support slide rail through sliders, and a support cylinder respectively connected to the two rotating disks for driving the two rotating disks to move.

[0015] Compared with the prior art, the present application has the following beneficial effects: the present invention can produce large-diameter tunnel air ducts, which effectively integrates various links of air duct production, realizes continuous production without human intervention, ensures quality control, and greatly improves production efficiency; in terms of personnel employment, only 1-2 people are needed to operate the equipment, and they only need to load materials and guard and maintain the production status, and the labor intensity is greatly reduced.

[0016] Some additional features of the present application may be explained in the following description. Some additional features of the present application will be apparent to those skilled in the art by inspection of the following description and corresponding drawings or understanding of the production or operation of the embodiments. The features disclosed in the present application may be realized and achieved by practice or use of various methods, means and combinations of the specific embodiments described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The exemplary embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation of the present application. In each figure, the same reference numeral represents the same component. Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the discharge group of the present invention.

[0019] Figure 3 It is a structural schematic diagram of the splicing welding group of the present invention.

[0020] Figure 4 It is a schematic structural diagram of the splicing welding air gun of the present invention.

[0021] Figure 5 This is a schematic diagram of multiple air duct fabrics being spliced ​​together.

[0022] Figure 6 It is a schematic structural diagram of the spine welding group of the present invention.

[0023] Figure 7 It is a top view of the spine unfolding mechanism of the present invention.

[0024] Figure 8 It is a cross-sectional view of the spine deployment mechanism of the present invention.

[0025] Fig. 9 A schematic cross-sectional view of the spine of the buckle.

[0026] Fig.10 This is a schematic cross-sectional view of the two adhesive parts on the back of the buckle when they are unfolded.

[0027] Fig.11It is a schematic diagram of the spine welding mechanism of the present invention.

[0028] Fig.12 It is a schematic cross-sectional view of the hook spine being welded to the surface of the air duct cloth.

[0029] Fig.13 It is a structural schematic diagram of the folding mechanism of the present invention.

[0030] Fig.14 This is a schematic diagram of the folding and arranging rod of the present invention when in use.

[0031] Fig.15 It is a schematic diagram of two folded parts of the air duct cloth folded toward the center of the air duct cloth.

[0032] Fig.16 This is a schematic diagram of the air duct cloth after it is flipped over.

[0033] Fig.17 This is a diagram showing the use status of the front sorting rack of the present invention.

[0034] Fig.18 It is a structural schematic diagram of the bow support mechanism of the present invention.

[0035] Fig.19 This is a diagram showing the bow support mechanism of the present invention in use.

[0036] Fig. 20 It is a structural schematic diagram of the finished product folding group of the present invention.

[0037] Fig.21 It is a schematic structural diagram of the folding roller assembly of the present invention.

[0038] Fig. 22 , 23 This is a schematic diagram of the hair dryer when it is folded.

[0039] The reference numerals in the above drawings are: 100-discharging group, 101-coil chuck seat, 102-width adjustment slider, 103-side fine-tuning bottom beam, 104-side moving bottom beam, 105-side photoelectric sensor, 106-discharging base, 107-discharging guide roller, 200-discharging tension control group, 201-discharging traction roller group, 202-tension detection roller, 300-joining welding group, 310-joining welding air gun, 311-air gun joint, 312-air gun body, 313-nozzle, 314-thermocouple, 320-welding steel pressure roller group, 340-joining welding traction roller group, 360-boosting fan, 370-air gun inlet and outlet cylinder, 400-joining tension control group, 410-joining traction roller group, 500 -Splicing finishing group, 510-Splicing edge suction moving slide rail, 520-Splicing edge suction device, 600-Back welding group, 610-Back welding pressure roller group, 620-Back welding traction roller group, 630-Back roll installation structure, 640-Back steering column, 650-Back welding mechanism, 651-Air gun up and down moving cylinder, 652-Air gun left and right moving slide rail, 653-Air gun left and right moving slider, 654-Air gun left and right moving cylinder, 655-Back welding air gun, 660-Back unfolding mechanism, 661-Unfolding bottom plate, 662-Unfolding pressure wheel frame, 663-Avoiding gap, 664-Unfolding pressure wheel, 665-Unfolding eagle beak, 700-Tube folding group, 710-Folding mechanism, 711-Folding support frame, 71 2-support shaft lifting mechanism, 713-support shaft mounting seat, 714-folding support shaft, 720-folding sorting rod, 721-main support rod, 722-first guide support rod, 723-second guide support rod, 800-folding traction group, 810-folding traction roller, 900-folding deviation correction group, 910-correction group guide wheel, 920-front sorting frame, 921-lower sorting rod, 922-upper sorting rod, 930-upper edge suction device, 940-lower edge suction device, 950-folding opposite edge sensor group, 1000-tube welding group, 1001-tube traction roller group, 1002-tube welding pressure roller group, 1003-tube welding mechanism, 1100-tube rear traction group, 1110-bow support mechanism, 1111-fixed seat, 1 112-opening cylinder, 1113-rotating disk, 1114-bow supporting slide rail, 1120-pulling roller group after tube formation, 1200-finished product folding group, 1202-folding lifting slide rail, 1203-folding lifting motor, 1204-folding lifting screw, 1205-folding reciprocating slide rail, 1206-folding reciprocating slider, 1207-folding roller assembly, 1208-first rotating box motor, 1209-first rotating box, 1210-folding roller driving motor, 1211-driving gear, 1212-first auxiliary gear, 1213-second auxiliary gear, 1214-first folding roller, 1215-second folding roller, 1216-second rotating box, 1217-second rotating box motor, 1218-cutting guide rail,1219-cutting knife, 1300-air duct cloth, 1310-folding part, 1400-hook back, 1410-hook part, 1420-paste part. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0041] It should be noted that if the description and claims of the present application and the above-mentioned drawings relate to the terms "first", "second", etc., they are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, if the terms "including" and "having" and any of their variations are involved, it is intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0042] In this application, if the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. are involved, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0043] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0044] In addition, in this application, the terms "installed", "set", "provided with", "connected", "connected", "socketed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0045] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0046] Example like Figure 1 As shown, this embodiment discloses a large-caliber tunnel air duct production equipment, which includes a feeding group 100, a splicing welding group 300, a back welding group 600, a tube folding group 700, and a tube welding group 1000 arranged in sequence along a set conveying direction. Among them, the feeding group 100 includes at least two feeding mechanisms, each feeding mechanism is used to unwind a piece of air duct cloth 1300; that is, each feeding mechanism is equipped with a roll of air duct cloth, and each feeding mechanism can unwind the air duct cloth roll thereon at the same time, and the splicing welding group 300 downstream splices multiple air duct cloth units into a wider width air duct cloth 1300, so that the tunnel air duct production equipment of this embodiment can produce large-caliber tunnel air ducts.

[0047] like Figure 2 As shown, in the present embodiment, the number of unwinding mechanisms is set to three, and the positions of the three unwinding mechanisms can be staggered front to back and up to down to ensure that the vertical projections of the edges of the three unrolled air duct cloth units can overlap, so as to facilitate the subsequent heat welding of the edges of the three air duct cloth units together, thereby forming an air duct cloth 1300 with a wider width.

[0048] Specifically, the material discharging mechanism includes a material discharging base 106, a side-moving bottom beam 104 arranged on the material discharging base 106, a side-fine-adjusting bottom beam 103 arranged on the side-moving bottom beam 104, two width adjustment sliders 102 respectively arranged at both ends of the side-fine-adjusting bottom beam 103, and a coil chuck seat 101 respectively arranged on the two width adjustment sliders 102. The two width adjustment sliders 102 can adopt existing electric slider modules, so that the two width adjustment sliders 102 can slide on the side-fine-adjusting bottom beam 103, thereby adjusting the distance between the two width adjustment sliders 102, so that the two width adjustment sliders 102 can clamp the wind tube cloth rolls of different widths. The side-fine-adjusting bottom beam 103 can be installed on the side-moving bottom beam 104 by means of existing electric screws, electric slider modules, etc., so that the side-fine-adjusting bottom beam 103 can move left and right on the side-moving bottom beam 104 to fine-tune the position of the wind tube cloth roll. Similarly, the side-moving bottom beam 104 can also be installed on the unloading base 106 by means of an electric screw rod, an electric slider module, etc., so that the side-moving bottom beam 104 can move left and right on the unloading base 106 to adjust the position of the air duct cloth roll to a large extent. The position of the air duct cloth roll is adjusted by the above structure to ensure that the edges of the subsequent air duct cloth units can overlap within a set width range.

[0049] In addition, each unwinding mechanism may also include an unwinding guide roller 107, and the unwinding air duct cloth unit is conveyed downstream after passing the unwinding guide roller 107. At the same time, two edge-to-edge photoelectric sensors 105 for detecting the edges of the air duct cloth unit may be provided on the unwinding base 106. The positions of the edges on both sides of the air duct cloth unit are detected by the edge-to-edge photoelectric sensors 105, and the detection signals thereof may be sent to an external controller, which controls the movement of the edge-to-edge moving bottom beam 104 and the edge-to-edge fine-tuning bottom beam 103 to adjust the position of the air duct cloth unit. In the specific setting, a magnetic powder brake or the like may be provided on the coil chuck seat 101 to control the unwinding. Since it is an existing mature technology, it will not be described in detail.

[0050] In specific settings, a discharge tension control group 200 can also be set downstream of each discharge mechanism to control the transmission tension of the air tube cloth unit. The discharge tension control group 200 includes a discharge traction roller group 201 and a tension detection roller 202 arranged downstream of the discharge traction roller group 201. The discharge traction roller group 201 includes a pressure roller and a traction roller, and the air tube cloth unit passes through the pressure roller and the traction roller. The pressure roller is used to clamp the air tube cloth unit on the traction roller. When the traction roller rotates, the air tube cloth unit can be pulled downstream. Of course, the discharge traction roller group 201 also includes a motor and other components for driving the traction roller to rotate. Since this design is an existing conventional design, it will not be repeated.

[0051] A pressure sensor is provided on the mounting seat of the tension detection roller 202. When working, the air tube cloth unit bypasses the tension detection roller 202. Since the air tube cloth unit is tensioned during the transmission process, the air tube cloth unit will apply pressure to the tension detection roller 202. The pressure sensor sends a pressure signal to an external controller. The controller can adjust the traction speed of the unloading traction roller group 201 according to the pressure, and then adjust the tension of the air tube cloth unit to ensure that the tension of each air tube cloth unit is consistent.

[0052] like Figure 1 As shown, the splicing and welding group 300 is arranged downstream of the unwinding tension control group 200, and is used to heat-seal and splice the multiple air duct cloth units unwound by the unwinding mechanism into an air duct cloth 1300 with a wider width.

[0053] like Figure 3 As shown, the splicing welding group 300 includes a splicing welding traction roller group 340, a welding steel pressure roller group 320, a splicing welding air gun 310, an air gun inlet and outlet cylinder 370 and a booster fan 360, which are respectively arranged on the frame. The air gun inlet and outlet cylinder 370 is connected to the splicing welding air gun 310, which is used to control the movement of the splicing welding air gun 310. The booster fan 360 is connected to the splicing welding air gun 310, which is used to supply air to the splicing welding air gun 310. The welding steel pressure roller group 320 is used to press the air duct cloth 1300 after welding. The splicing welding traction roller group 340 is located downstream of the welding steel pressure roller group 320, and is used to pull the air duct cloth 1300 after welding downstream.

[0054] like Figure 4 As shown, the stitching welding air gun 310 includes an air gun body 312, an air gun connector 311 disposed at the upper end of the air gun body 312, a nozzle 313 disposed at the lower end of the air gun body 312, and a thermocouple 314 disposed inside the air gun body 312; the air gun connector 311 is connected to a booster fan 360, and the air gun body 312 is connected to an air gun inlet and outlet cylinder 370. The air in the air gun body 312 is heated by the thermocouple 314 and then ejected from the nozzle 313.

[0055] The multiple air duct fabric units coming out of the material discharge tension control group 200 are guided to the welding steel pressure roller group 320, which is composed of two longer pressure rollers, and the multiple air duct fabric units pass through the two pressure rollers. The air gun inlet and outlet cylinder 370 extends, driving the splicing welding air gun 310 to make the nozzle 313 of the splicing welding air gun 310 close to the two pressure rollers, and heats the splicing surface of the two adjacent air duct fabric units to make the splicing surface in a semi-molten state. The welding steel pressure roller group 320 squeezes the air duct fabric units to splice the two adjacent air duct fabric units together, such as Figure 5As shown. Specifically, since multiple air duct cloth units are spliced ​​together, multiple air gun inlet and outlet cylinders 370 and multiple splicing welding air guns 310 can be set to weld multiple air duct cloth units at the same time. As in the present embodiment, the air gun inlet and outlet cylinders 370 and the splicing welding air guns 310 can be set as two groups to splice three air duct cloth units at the same time. The spliced ​​air duct cloth 1300 is pulled downstream by the splicing welding traction roller group 340. Similarly, the splicing welding traction roller group 340 is also composed of a pressure roller and a traction roller, which will not be described in detail. When the equipment needs to be shut down, the air gun inlet and outlet cylinders 370 are controlled to move so that the splicing welding air gun 310 is away from the air duct cloth unit to prevent the air duct cloth unit from being damaged by the residual heat of the splicing welding air gun 310.

[0056] After welding, the heated parts of the wind tube cloth 1300 may shrink. As an implementation of this embodiment, a splicing tension control group 400 may be set downstream of the splicing welding group 300. Specifically, the splicing tension control group 400 includes a splicing traction roller group 410. Similarly, the splicing traction roller group 410 is also composed of a pressure roller and a traction roller. The wind tube cloth 1300 enters the splicing traction roller group 410 through the traction roller. The high temperature of the welding part will be quickly conducted out through the metal surfaces of the pressure roller and the traction roller to control the shrinkage of the weld. In addition, the large area support of the steel roller ensures the flatness of the weld, which is ready for the next processing step.

[0057] In order to better arrange the air duct cloth 1300, a splicing arrangement group 500 can also be arranged downstream of the splicing tension control group 400. Specifically, the splicing arrangement group 500 includes a splicing edge suction device moving slide 510 arranged on the frame and two splicing edge suction devices 520 respectively arranged at both ends of the splicing edge suction device moving slide 510, and the two splicing edge suction devices 520 can move on the splicing edge suction device moving slide 510. In addition, guide rollers can be arranged upstream of the two splicing edge suction devices 520, and a group of damping rollers can be arranged downstream of the two splicing edge suction devices 520. When working, the two splicing edge suction devices 520 clamp the two side edges of the air duct cloth 1300 respectively to pull the edge of the air duct cloth 1300, so that the air duct cloth 1300 is flatly spread on the roller surface of the guide roller, and the air duct cloth 1300 passes between the two damping rollers, and the damping roller can provide a certain material surface tension to the air duct cloth 1300. The stitching edge absorber 520 can be implemented by using an existing edge absorber in the textile industry.

[0058] In order to facilitate the installation of the tunnel duct in the tunnel, a hook ridge 1400 is welded on the tunnel duct, and the tunnel duct is installed in the tunnel through the hook ridge. The ridge welding group 600 of this embodiment is used to weld the hook ridge to the duct cloth 1300, and is arranged downstream of the splicing and finishing group 500.

[0059] like Figure 6As shown, the spine welding group 600 includes a spine roll installation structure 630 for unwinding the hook spine 1400, a spine unfolding mechanism 660 for unfolding the unwound hook spine 1400, a spine welding mechanism 650 for heat-sealing and welding the unfolded hook spine 1400 to the surface of the spliced ​​air duct cloth 1300, a spine welding pressure roller group 610 for pressing the welded hook spine 1400 and the air duct cloth 1300, and a spine welding traction roller group 620 for pulling the air duct cloth 1300 welded with the hook spine 1400 downstream.

[0060] The buckle back 1400 is a prefabricated T-shaped material with a metal buckle, which includes a buckle portion 1410 and two adhesive portions 1420 connected to the lower end of the buckle portion 1410. The specific structure is as follows: Fig. 9 As shown. Among them, the spine roll installation structure 630 includes a servo motor, a pneumatic brake connected to the servo motor, a mounting shaft installed on the pneumatic brake and other components. The hook back 1400 is a rolled material. When in use, the hook back roll is installed on the mounting shaft, and the hook back roll installation structure 630 unwinds the hook back roll. In the specific setting, a spine steering column 640 can be set on the frame. After unwinding, the hook back 1400 pulled out bypasses the spine steering column 640 and the conveying direction is changed, so that the conveying direction of the hook back 1400 is consistent with the conveying direction of the air duct cloth 1300, which is convenient for the subsequent welding process.

[0061] The spine deployment mechanism 660 is located downstream of the spine roll mounting structure 630, such as Figure 6 , 7 As shown, it includes an unfolding base plate 661 , an unfolding beak 665 arranged at the front end of the unfolding base plate 661 , and two unfolding pressure wheel frames 662 arranged on the upper surface of the unfolding base plate 661 .

[0062] The front end of the unfolding beak 665 is pointed, and the rear end thereof expands to both sides, so that the unfolding beak 665 can open the two adhesive portions 1420 of the hook spine 1400 to both sides. An escape gap 663 is formed between the two unfolding pressure wheel frames 662 for the hook portion 1410 of the hook spine 1400 to pass through. Figure 8 As shown; and, the two unfolding pressure rollers 664 are symmetrically arranged on the two unfolding pressure roller frames 662, and a gap is formed between the unfolding pressure rollers 664 and the unfolding bottom plate 661 for the two adhesive portions 1420 of the buckle spine 1400 to pass through. In addition, the unfolding pressure rollers 664 on the two unfolding pressure roller frames 662 are tilted, so that the two symmetrical unfolding pressure rollers 664 are distributed in an "eight" shape, as shown in FIG. Figure 7 As shown, the unfolding pressing wheel 664 is tilted to guide the two adhesive portions 1420 so that the two adhesive portions 1420 are opened as shown in FIG. Fig.10 In the specific setting, the number of unfolding rollers 664 on each unfolding roller frame 662 can be multiple, and the unfolding rollers 664 on the two unfolding roller frames 662 are symmetrically distributed, and the guidance of multiple groups of unfolding rollers 664 ensures that the two adhesive portions 1420 can be opened, further ensuring the subsequent welding quality.

[0063] During operation, the hook spine 1400, which has been redirected by the spine steering column 640, is pulled to the spine unfolding mechanism 660. When the hook spine 1400 passes through the unfolding beak 665, the two adhesive portions 1420 are separated. Then, the two adhesive portions 1420 pass through the unfolding bottom plate 661 and the unfolding rollers 664 on the two unfolding roller frames 662, respectively. At the same time, the hook portion 1410 passes through the avoidance gap 663. Under the squeezing action of the unfolding rollers 664, the hook spine 1400 is unfolded into Fig.10 Shape shown.

[0064] The air duct cloth 1300 and the unfolded hook spine 1400 are both pulled to the spine welding roller group 610, and the hook spine 1400 is located above the air duct cloth 1300. The spine welding mechanism 650 is located upstream of the spine welding roller group 610 and close to the spine welding roller group 610. Fig.11 As shown, the spine welding mechanism 650 includes an air gun up and down moving cylinder 651, an air gun left and right moving slide rail 652 arranged on the air gun up and down moving cylinder 651, two spine welding air guns 655 respectively arranged on the air gun left and right moving slide rail 652 through air gun left and right moving sliders 653, two air gun left and right moving cylinders 654 fixed on the air gun left and right moving slide rail 652 and respectively used to push the two spine welding air guns 655, and a spine welding booster fan respectively connected to the two spine welding air guns 655.

[0065] During welding, the air gun upward and downward movement cylinder 651 and the air gun left and right movement cylinder 654 are controlled to move, and the nozzle of the spine welding air gun 655 is moved to a position close to the two adhesive portions 1420 and the air tube cloth 1300. The two spine welding air guns 655 heat the welding surfaces of the two adhesive portions 1420 and the air tube cloth 1300 respectively. As the air tube cloth 1300 and the hook spine 1400 move forward, the spine welding pressure roller group 610 presses the hook spine 1400 onto the air tube cloth 1300 for welding. Fig.12 The structures of the two spine welding air guns 655 are the same as the structure of the above-mentioned splicing welding air gun 310, and the specific structure will not be repeated.

[0066] like Figure 1As shown, the tube forming and folding group 700 is arranged downstream of the spine welding group 600, and is used to fold the two sides of the air duct cloth 1300 toward the middle. Specifically, the tube forming and folding group 700 includes a folding mechanism 710 and two folding and arranging rods 720 respectively arranged downstream of the folding mechanism 710.

[0067] like Fig.13 As shown, the folding mechanism 710 includes a folding support frame 711, a support shaft mounting seat 713 that can move up and down and is arranged on the folding support frame 711, a folding support shaft 714 installed on the support shaft mounting seat 713, and a support shaft lifting mechanism 712 connected to the support shaft mounting seat 713 and used to drive the support shaft mounting seat 713 to move up and down. Specifically, the support shaft mounting seat 713 and the folding support frame 711 can be connected by means of a slide rail and a slider, so that the support shaft mounting seat 713 can move up and down, thereby adjusting the height of the folding support shaft 714. The support shaft lifting mechanism 712 can be driven by a cylinder or a motor and a screw. The folding support shaft 714 is used to support the air duct cloth 1300, and its length must be smaller than the width of the spliced ​​air duct cloth 1300, so that after the air duct cloth 1300 is placed thereon, the two sides of the air duct cloth 1300 can be folded downward to form a folding portion 1310, as shown in FIG. Fig.13 The length of the folding support shaft 714 can be adjusted so that it can be suitable for wind tube cloths 1300 of different widths. Specifically, the folding support shaft 714 can be adjusted in length by sleeve connection of inner and outer tubes, or by detachable splicing of multiple shafts.

[0068] The two folding and arranging rods 720 are used to arrange the folded portions 1310 on both sides of the air duct cloth 1300. Fig.14 As shown, the folding arrangement rod 720 includes a main support rod 721 for supporting the folding portion 1310, and a first guide support rod 722 and a second guide support rod 723 respectively arranged on the main support rod 721; the first guide support rod 722 and the second guide support rod 723 are both inclined, and during the forward movement of the air duct cloth 1300, the first guide support rod 722 and the second guide support rod 723 can guide the folding portion 1310 to the center of the air duct cloth 1300, so that the folding portions 1310 on both sides of the air duct cloth 1300 overlap with each other, as shown in FIG. Fig.15 shown.

[0069] like Figure 1 As shown, a folding and pulling group 800 can be arranged downstream of the tube folding group 700. The folding and pulling group 800 is composed of two folding and pulling rollers 810 to establish tension for the folded wind tube cloth 1300 to achieve downstream pulling. Similarly, the folding and pulling rollers 810 are also driven to rotate by a driving component such as a motor, and the details are not described again.

[0070] In order to align the folded portion 1310, as Figure 1 As shown, a folding and correcting group 900 is arranged downstream of the tube folding group 700. The folding and correcting group 900 includes a correcting group guide wheel 910, a front sorting frame 920, an upper edge suction device 930, a lower edge suction device 940, and a folding opposite edge sensor group 950 arranged in sequence along the conveying direction. Among them, the correcting group guide wheel 910 is located below the folding traction group 800, and the air duct cloth 1300 is turned over after bypassing the correcting group guide wheel 910, that is, after the air duct cloth 1300 bypasses the correcting group guide wheel 910, the folding parts 1310 on both sides are turned over to the top, as shown in FIG. Fig.16 shown.

[0071] like Fig.17 As shown, the front arranging frame 920 includes an upper arranging rod 922 and a lower arranging rod 921 arranged vertically. When the air duct cloth 1300 is conveyed forward, the two folding portions 1310 are placed on the upper arranging rod 922 and the lower arranging rod 921 respectively, so that the two folding portions 1310 are staggered up and down, as shown in FIG. Fig.17 As shown, the two folding parts 1310 can be aligned later. The upper edge absorber 930 and the lower edge absorber 940 are respectively arranged downstream of the upper sorting rod 922 and the lower sorting rod 921, and the two are respectively used to adjust the positions of the upper and lower folding parts 1310, so that the upper and lower folding parts 1310 are kept within the set overlapping size range. Specifically, the upper edge absorber 930 and the lower edge absorber 940 can be set to multiple front and back, so as to achieve pre-correction and precise correction. Similarly, the upper edge absorber 930 and the lower edge absorber 940 also adopt the edge absorber of the textile industry, which can prevent the material from deviating to the left and right during operation by changing the direction of friction. The folding edge sensor group 950 is composed of two photoelectric sensors, which are respectively arranged downstream of the upper edge absorber 930 and the lower edge absorber 940, and are used to detect the edge position information of the upper and lower folding parts 1310. The external controller controls the angles of the upper edge absorber 930 and the lower edge absorber 940 through the position information to achieve precise edge alignment.

[0072] In addition, a conveyor belt may be provided below the front arranging frame 920, and the portion of the air duct cloth 1300 other than the two folded portions 1310 is placed on the conveyor belt and conveyed forward by the conveyor belt.

[0073] The tube welding group 1000 is arranged downstream of the tube folding group 700, and is used to heat-weld the air duct cloth 1300 delivered by the folding and correcting group 900 into a tunnel air duct. Figure 1As shown, the tube welding group 1000 includes a tube welding mechanism 1003 for welding the folded parts 1310 on both sides of the wind tube cloth 1300 together, a tube welding pressure roller group 1002 arranged downstream of the tube welding mechanism 1003, and a tube traction roller group 1001 arranged downstream of the tube welding pressure roller group 1002.

[0074] Similarly, the tube welding mechanism 1003 is similar to the welding mechanism in the splicing welding group 300, that is, it also includes a welding air gun, an air gun inlet and outlet cylinder, and a booster fan, which will not be described in detail here. After the two folded parts 1310 are welded together, the entire wind tube cloth 1300 is formed into a wind tube. The tube welding pressure roller group 1002 dissipates heat and extrude the welded folded parts 1310, and the tube traction roller group 1001 provides traction to the upper layer of the formed tunnel wind tube.

[0075] As an implementation method of this embodiment, Figure 1 As shown, a tube-forming traction group 1100 is further arranged downstream of the tube-forming welding group 1000. The tube-forming traction group 1100 comprises a bow-supporting mechanism 1110 and a tube-forming traction roller group 1120 arranged downstream of the bow-supporting mechanism 1110.

[0076] When the tunnel air duct is formed, the bow support mechanism 1110 is located inside the tunnel air duct. Fig.18 As shown, the bow-supporting mechanism 1110 includes a fixed seat 1111, a bow-supporting slide rail 1114 arranged on the fixed seat 1111, two rotating disks 1113 respectively installed at both ends of the bow-supporting slide rail 1114 through sliders, and a supporting cylinder 1112 respectively connected to the two rotating disks 1113 for driving the two rotating disks 1113 to move.

[0077] When in use, the two rotating disks 1113 are pushed toward the two ends of the arch support slide rail 1114, so that the two rotating disks 1113 squeeze the two sides of the tunnel wind tube, so that the tunnel wind tube is folded in half and flattened. Fig.19 The two rotating disks 1113 can move on the bow support slide rails 1114, so that the bow support mechanism 1110 is suitable for tunnel wind tubes of different diameters. The folded and flattened tunnel wind tube is pulled downstream by the rear traction roller group 1120.

[0078] like Figure 1 As shown, a finished product folding group 1200 is also provided downstream of the tube-forming traction group 1100. Fig. 20 As shown, the finished folding group 1200 includes a lifting bracket, two folding reciprocating slide rails 1205 that are liftably arranged on the lifting bracket, and folding roller assemblies 1207 on the two folding reciprocating slide rails 1205 at both ends thereof respectively installed through folding reciprocating sliders 1206.

[0079] like Fig.21 As shown, the folding roller assembly 1207 includes a first rotating box motor 1208 and a second rotating box motor 1217 respectively installed on two folding reciprocating sliders 1206, a first rotating box 1209 connected to the first rotating box motor 1208, a second rotating box 1216 connected to the second rotating box motor 1217, a folding roller driving motor 1210 arranged inside the first rotating box 1209, a driving gear 1211 installed on the rotating shaft of the folding roller driving motor 1210, a first auxiliary gear 1212 and a second auxiliary gear 1213 respectively meshing with the driving gear 1211, a first folding roller 1214 connected between the first auxiliary gear 1212 and the second rotating box 1216, and a second folding roller 1215 connected between the second auxiliary gear 1213 and the second rotating box 1216; the first auxiliary gear 1212 and the second auxiliary gear 1213 have opposite rotation directions.

[0080] The following combination Fig. 22 , 23 Explain the folding principle: Fig. 22 As shown, the flattened tunnel wind tube passes between the first folding roller 1214 and the second folding roller 1215, the first rotating box motor 1208 drives the first rotating box 1209 to rotate counterclockwise, and the second rotating box motor 1217 drives the second rotating box 1216 to rotate clockwise. At this time, the first folding roller 1214 is located above the second folding roller 1215, and the folding roller assembly 1207 is controlled to move leftward along the folding reciprocating slide rail 1205 to the set position. Fig.23 As shown, the first rotating box motor 1208 drives the first rotating box 1209 to rotate clockwise, and the second rotating box motor 1217 drives the second rotating box 1216 to rotate counterclockwise. At this time, the second folding roller 1215 is located above the first folding roller 1214, and the folding roller assembly 1207 is controlled to move rightward to the set position along the folding reciprocating slide rail 1205. Repeat the above actions, and the tunnel wind tube is folded up. During the folding process, as the stacked tunnel wind tubes become higher and higher, the corresponding folding reciprocating slide rail 1205 is controlled to gradually rise along the lifting bracket.

[0081] Specifically, Fig. 20 As shown, the lifting bracket includes a folding lifting rail 1202, a folding lifting screw 1204 arranged on the folding lifting rail 1202, and a folding lifting motor 1203 connected to the folding lifting screw 1204. A folding reciprocating rail 1205 is installed on the folding lifting screw 1204. When the folding lifting motor 1203 drives the folding lifting screw 1204 to rotate, the folding reciprocating rail 1205 can move up and down.

[0082] As another implementation method, a cutting guide rail 1218 can also be set between the two folding reciprocating slide rails 1205. A cutter 1219 is installed on the cutting guide rail 1218 through a slider. By controlling the cutter 1219 to move along the cutting guide rail 1218, the folded tunnel air duct can be cut.

[0083] This embodiment can produce large-diameter tunnel air ducts, which effectively integrates various links of air duct production, realizes continuous production without human intervention, ensures quality control, and greatly improves production efficiency; in terms of personnel employment, only 1-2 people are needed to operate the equipment, and they only need to load materials and guard and maintain the production status, and the labor intensity is greatly reduced.

[0084] It should be noted that all features disclosed in this specification, or steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can be combined in any manner.

[0085] In addition, the above specific embodiments are exemplary, and those skilled in the art can come up with various solutions inspired by the disclosure of the present invention, and these solutions also belong to the disclosure scope of the present invention and fall within the protection scope of the present invention. Those skilled in the art should understand that the present invention description and its drawings are illustrative and do not constitute a limitation of the claims. The protection scope of the present invention is defined by the claims and their equivalents.

Claims

1. A large-diameter tunnel air duct production equipment, characterized in that: include: At least two unwinding mechanisms, used to unwind the air duct cloth (1300); A splicing and welding group (300), arranged downstream of the unwinding mechanism, is used to heat-seal and splice the air duct cloth units unwound by at least two unwinding mechanisms; A spine welding group (600) is arranged downstream of the splicing welding group (300); the spine welding group (600) comprises a spine roll installation structure (630) for unwinding the hook spine (1400), a spine unfolding mechanism (660) for unfolding the unwound hook spine (1400), a spine welding mechanism (650) for heat-sealing and welding the unfolded hook spine (1400) to the surface of the spliced ​​wind tube cloth (1300), a spine welding pressing roller group (610) for pressing the welded hook spine (1400) and the wind tube cloth (1300), and a spine welding traction roller group (620) for traction the wind tube cloth (1300) with the hook spine (1400) welded to the downstream; A tube forming and folding group (700) is arranged downstream of the spine welding group (600) and is used to fold the two sides of the air tube cloth (1300) toward the middle thereof; The tube welding group (1000) is arranged downstream of the tube folding group (700) and is used to heat-seal and weld the folded air duct cloth (1300) into shape.

2. The large-diameter tunnel air duct production equipment according to claim 1 is characterized in that: The splicing welding group (300) comprises a splicing welding traction roller group (340), a welding steel pressure roller group (320), a splicing welding air gun (310), an air gun inlet and outlet cylinder (370), and a booster fan (360) which are respectively arranged on a frame; the air gun inlet and outlet cylinder (370) is connected to the splicing welding air gun (310) and is used to control the movement of the splicing welding air gun (310); the booster fan (360) is connected to the splicing welding air gun (310); the welding steel pressure roller group (320) is used to press the air duct cloth (1300) after welding; the splicing welding traction roller group (340) is located downstream of the welding steel pressure roller group (320) and is used to pull the compressed air duct cloth (1300) downstream.

3. The large-diameter tunnel air duct production equipment according to claim 2 is characterized in that: The splicing welding air gun (310) comprises an air gun body (312), an air gun connector (311) arranged at the upper end of the air gun body (312), a nozzle (313) arranged at the lower end of the air gun body (312), and a thermocouple (314) arranged inside the air gun body (312); the air gun connector (311) is connected to a booster fan (360), and the air gun body (312) is connected to an air gun inlet and outlet cylinder (370).

4. The large-diameter tunnel air duct production equipment according to claim 1 is characterized in that: The spine unfolding mechanism (660) comprises an unfolding base plate (661), an unfolding beak (665) arranged at the front end of the unfolding base plate (661), and two unfolding pressure wheel frames (662) arranged on the upper surface of the unfolding base plate (661); the rear end of the unfolding beak (665) expands to both sides so that it can open the two adhesive portions (1420) of the hooking spine (1400); a hooking portion (1410) for hooking the hooking spine (1400) is formed between the two unfolding pressure wheel frames (662). and an avoidance gap (663) for passing through; and, the two unfolding pressure wheel frames (662) are symmetrically provided with unfolding pressure wheels (664), and a gap for the two adhesive portions (1420) of the buckle spine (1400) to pass through is formed between the unfolding pressure wheels (664) and the unfolding bottom plate (661), and the unfolding pressure wheels (664) on the two unfolding pressure wheel frames (662) are both inclined so that the unfolding pressure wheels (664) can guide the two adhesive portions (1420) of the buckle spine (1400) in the opening direction.

5. The large-diameter tunnel air duct production equipment according to claim 4 is characterized in that: The spine welding mechanism (650) comprises an air gun vertical moving cylinder (651), an air gun horizontal moving slide rail (652) arranged on the air gun vertical moving cylinder (651), two spine welding air guns (655) respectively arranged on the air gun horizontal moving slide rail (652) via air gun horizontal moving sliders (653), two air gun horizontal moving cylinders (654) fixed on the air gun horizontal moving slide rail (652) and respectively used to push the two spine welding air guns (655), and spine welding booster fans respectively connected to the two spine welding air guns (655); the structures of the two spine welding air guns (655) are the same as those of the splicing welding air gun (310), and are respectively used to weld the two adhesive portions (1420) of the hook spine (1400) to the surface of the air duct cloth (1300).

6. The large-diameter tunnel air duct production equipment according to claim 1 is characterized in that: The tube forming and folding group (700) comprises a folding mechanism (710) and two folding and arranging rods (720) respectively arranged downstream of the folding mechanism (710); The folding mechanism (710) comprises a folding support frame (711), a support shaft mounting seat (713) disposed on the folding support frame (711) and movable up and down, a folding support shaft (714) mounted on the support shaft mounting seat (713), and a support shaft lifting mechanism (712) connected to the support shaft mounting seat (713) and used for driving the support shaft mounting seat (713) to move up and down; the length of the folding support shaft (714) is smaller than the width of the spliced ​​air duct cloth (1300), so that after the air duct cloth (1300) is placed on it, both sides of the air duct cloth (1300) can be folded downward to form a folded portion (1310); and two folding arrangement rods (720) are respectively used for arranging the folded portions (1310) on both sides of the air duct cloth (1300).

7. The large-diameter tunnel air duct production equipment according to claim 6 is characterized in that: The folding and arranging rod (720) comprises a main supporting rod (721) for supporting the folding portion (1310), and a first guiding supporting rod (722) and a second guiding supporting rod (723) respectively arranged on the main supporting rod (721); the first guiding supporting rod (722) and the second guiding supporting rod (723) are arranged obliquely to guide the folding portion (1310) towards the center of the air duct cloth (1300).

8. The large-diameter tunnel air duct production equipment according to claim 1 is characterized in that: The tube welding group (1000) comprises a tube welding mechanism (1003) for welding the folded parts (1310) on both sides of the wind tube cloth (1300) together, a tube welding pressure roller group (1002) arranged downstream of the tube welding mechanism (1003), and a tube traction roller group (1001) arranged downstream of the tube welding pressure roller group (1002).

9. The large-diameter tunnel air duct production equipment according to claim 1 is characterized in that: It also includes a finished product folding group (1200) arranged downstream of the barrel welding group (1000); The finished product folding group (1200) comprises a lifting bracket, two folding reciprocating slide rails (1205) which are liftably arranged on the lifting bracket, and folding roller assemblies (1207) respectively mounted on the two folding reciprocating slide rails (1205) at both ends via folding reciprocating sliders (1206); The folding roller assembly (1207) comprises a first rotating box motor (1208) and a second rotating box motor (1217) respectively mounted on two folding reciprocating sliders (1206), a first rotating box (1209) connected to the first rotating box motor (1208), a second rotating box (1216) connected to the second rotating box motor (1217), a folding roller driving motor (1210) arranged inside the first rotating box (1209), a driving gear (1211) mounted on the rotating shaft of the folding roller driving motor (1210), a first auxiliary gear (1212) and a second auxiliary gear (1213) respectively meshing with the driving gear (1211), a first folding roller (1214) connected between the first auxiliary gear (1212) and the second rotating box (1216), and a second folding roller (1215) connected between the second auxiliary gear (1213) and the second rotating box (1216); the first auxiliary gear (1212) and the second auxiliary gear (1213) rotate in opposite directions.

10. The large-diameter tunnel air duct production equipment according to claim 9 is characterized in that: A post-tube traction group (1100) is also provided between the tube welding group (1000) and the finished product folding group (1200); The post-boiling traction group (1100) comprises a bow support mechanism (1110) and a post-boiling traction roller group (1120) arranged downstream of the bow support mechanism (1110); The bow-supporting mechanism (1110) comprises a fixed seat (1111), a bow-supporting slide rail (1114) arranged on the fixed seat (1111), two rotating disks (1113) respectively mounted at both ends of the bow-supporting slide rail (1114) via sliders, and a supporting cylinder (1112) respectively connected to the two rotating disks (1113) for driving the two rotating disks (1113) to move.

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