A cord cutting and splicing apparatus

Abstract

The present application relates to the technical field of cord processing, in particular to a kind of cord cutting and splicing equipment, including workbench, support frame, limiting frame and controller, workbench bottom end is provided with support frame, workbench top is provided with limiting frame, workbench top is provided with controller, further comprising: briquetting assembly, it is installed on workbench, for the splicing of two groups of cord is compressed;When it is used, staff will first pair of cord be placed in the group of station of double-station assembly, by controller control, make double-station assembly drive first pair of cord to move to the just below briquetting assembly, to make first pair of cord away from briquetting assembly at the same time start air cooling component and carry out air cooling to the welding of first pair of cord, when second pair of cord moves to the just below briquetting assembly, staff directly unload first pair of cord, third pair of cord is placed on double-station assembly, realize cord welding unloading, air cooling component carries out targeted air cooling, improves processing efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of curtain fabric processing, and in particular to a curtain fabric cutting and splicing device. Background Technology

[0002] In the production of rubber products such as tires and conveyor belts, the cut fabric cords need to be spliced ​​end to end to form a continuous long belt for subsequent processes. The quality of the fabric splicing directly affects the strength, dynamic balance, and service life of the product. In addition to hot pressing, ultrasonic welding is also used for splicing fabric cords.

[0003] For example, Chinese invention patent CN118650889B discloses a rapid ultrasonic welding process for splicing cut tire fiber cord fabric. This process uses a vision system to identify the position of the cord fabric, a robotic arm automatically picks up the second cord fabric and moves it to overlap with the end of the first cord fabric, and then uses an ultrasonic welding device to complete the welding. This technology has the advantages of short welding time (less than 1 second), small overlap width (down to 1 mm), and high joint strength, realizing the full automation of cord fabric splicing.

[0004] However, the aforementioned fully automated ultrasonic welding equipment still has the following shortcomings in practical applications: The equipment is expensive: it requires industrial robots, vision positioning systems, multi-axis servo drives, and complex electrical control systems, with the total investment often reaching hundreds of thousands of yuan. For tire companies with large-scale, continuous production, this investment can be amortized through economies of scale; however, for small-batch, multi-variety cord fabric splicing scenarios (such as conveyor belt repair, special cord fabric products, and small and medium-sized rubber product factories), the equipment cost is too high, resulting in poor economic efficiency.

[0005] Changeover and debugging are cumbersome: When the specifications of the fabric (width, angle, thickness) are changed, the vision algorithm and robot trajectory need to be readjusted, which requires high operator skills and results in long downtime. In small-batch production, frequent changeovers further reduce equipment utilization.

[0006] Therefore, existing fully automatic ultrasonic welding equipment is mainly suitable for large-scale production scenarios with large batches and few varieties. However, for small-batch fabric splicing needs, there is currently a lack of splicing equipment that is cost-effective, easy to operate, flexible in changing models, and has efficient cooling. Summary of the Invention

[0007] To solve the above-mentioned technical problems, the present invention provides a curtain fabric cutting and splicing device.

[0008] The present invention provides a fabric cutting and splicing device, comprising a worktable, a support frame, a limiting frame, and a controller. The support frame is located at the bottom of the worktable, the limiting frame is located at the top of the worktable, and the controller is located at the top of the worktable. The device also includes: The pressure block assembly, which is installed on the workbench, is used to press the joint of two sets of curtain fabrics together. The dual-station assembly is installed on the worktable inside the limiting frame and is used for feeding and unloading the curtain fabric. Air-cooling components are used to cool the assembled curtain fabric. The pressing assembly, dual-station assembly, and air-cooling assembly are all electrically connected to the controller. In use, the operator places the first pair of curtains on one of the stations of the dual-station assembly. Controlled by the controller, the dual-station assembly moves the first pair of curtains directly below the pressing assembly. The pressing assembly then presses down on the overlapping area of ​​the first pair of curtains while simultaneously welding them to the dual-station assembly, achieving rapid splicing of the first pair of curtains. During this process, the second pair of curtains is placed on the dual-station assembly, and the assembly is activated to move in the opposite direction, moving the second pair of curtains directly below the pressing assembly. Simultaneously, the air-cooling assembly is activated to cool the welded area of ​​the first pair of curtains as the first pair of curtains moves away from the pressing assembly. Once the second pair of curtains is directly below the pressing assembly, the operator unloads the first pair of curtains and places the third pair of curtains on the dual-station assembly. This allows for targeted air cooling during curtain welding and unloading, improving processing efficiency.

[0009] Preferably, the pressing block assembly includes a support, a bracket, a servo electric cylinder, a lifting plate, a pressing block, and a guide bar. A support is located at the top of the worktable, a bracket is located at the top of the support, a servo electric cylinder is located at the top of the bracket, a lifting plate is located at the bottom moving end of the servo electric cylinder, a pressing block is located at the bottom of the lifting plate, and a guide bar is located at the top of the lifting plate. The guide bar is slidably connected to the bracket, and the servo electric cylinder is electrically connected to the controller. When the dual-station assembly moves a pair of curtains to directly below the pressing block, the controller operates the servo electric cylinder to extend, causing the lifting plate to lower the pressing block with the assistance of the guide bar. After the pressing block and the dual-station assembly work together to press the overlapping area of ​​the curtains, the dual-station assembly and the pressing block work together to perform ultrasonic welding on the overlapping area of ​​the two sets of curtains, improving processing efficiency.

[0010] Preferably, the dual-station assembly includes a slide rail, a slider, a movable seat, a conveyor plate, fixed blocks, a servo motor, a coupling, a lead screw, and ultrasonic welding heads. A slide rail is mounted on the top of the worktable, a slider slides along the slide rail, and movable seats are mounted on the sliders. The tops of both movable seats are connected to the bottom of the conveyor plate. Two sets of ultrasonic welding heads are mounted on the conveyor plate. A set of fixed blocks is mounted at the bottom of each set of movable seats. A lead screw is rotatably mounted inside the limiting frame, and the lead screw is threadedly connected to the two sets of fixed blocks. A servo motor is mounted on the worktable, and its output end is connected to one end of the lead screw via a coupling. The ultrasonic welding heads and the servo motor are electrically connected to a controller. In use, a pair of curtains are arranged on the conveyor plate, with the overlapping area of ​​the pair of curtains directly above one set of ultrasonic welding heads. The servo motor is started, and with the help of the coupling, it drives the lead screw to rotate. Since the lead screw is threadedly connected to two sets of fixed blocks, the fixed blocks move the conveyor plate with the help of the slider and slide rail. When the ultrasonic welding head moves to the bottom of the pressure block, the limit frame limits the movement of the conveyor plate to achieve precise positioning. After the pressure block presses the overlapping part of the two sets of curtains with the help of the ultrasonic welding head, the controller starts the ultrasonic welding head, so that the ultrasonic welding head cooperates with the pressure block to perform ultrasonic welding on the overlapping part of the two sets of curtains, improving processing efficiency. During the welding process, the operator places another pair of curtains on the pressure block with the overlapping part directly above the other set of ultrasonic welding heads, so as to unload one pair of curtains and load another pair of curtains, improving processing efficiency.

[0011] Preferably, the air-cooled assembly includes an air compressor, a buffer tank, a first air supply pipe, a three-way pipe, a second air supply pipe, support rods, nozzles, push-button switches, and toggle assemblies. The output end of the air compressor is connected to the input end of the buffer tank, the output end of the buffer tank is connected to the input end of the first air supply pipe, the output end of the first air supply pipe is connected to the input end of the three-way pipe, the two sets of output ends of the three-way pipe are connected to the input ends of a set of second air supply pipes, each set of second air supply pipes has a set of nozzles, each set of second air supply pipes has a set of support rods between it and the worktable, each set of second air supply pipes has a set of push-button switches, and two sets of toggle assemblies are symmetrically arranged on the top of the conveyor plate. The press delivers compressed air into the buffer tank. When the conveyor plate moves and the welded curtain moves away from the pressure block, the toggle assembly near the curtain squeezes and opens the push switch, allowing the compressed air inside the buffer tank to be delivered through the No. 1 air supply pipe, the tee pipe, and the No. 2 air supply pipe. The compressed air then passes through the nozzle to perform air cooling on the welded area of ​​the curtain. At the same time, another set of toggle assemblies keeps the other set of push switches off. That is, when the curtain moves closer to the pressure block, the toggle assembly does not open the push switch; when the curtain moves away from the pressure block, the toggle assembly opens the push switch, thus achieving air cooling of the welded curtain.

[0012] Preferably, the push-button assembly includes a vertical plate, a vertical plate, a limiting block, a rotating shaft, a push-button, an inclined end, a counterweight, and a swing arm. The conveyor plate has a vertical plate with two sets of vertical plates. A limiting block is located at the top of the vertical plate between the two sets of vertical plates. The swing arm has a push-button at its top and is rotatably positioned between the two sets of vertical plates via the rotating shaft. The push-button has an inclined end, and a counterweight is located at the side end of the swing arm. In use, when the curtain moves away from the pressure block, the limiting block restricts the swing arm's movement, and the push-button, through its inclined end, presses against the push switch, thereby controlling the push switch. When activated, compressed air from inside the buffer tank is supplied to the welded fabric through the No. 2 air supply pipe and nozzle via a press-button switch for air cooling. After a period of time, the press-button switch automatically resets and closes. The flat end of another set of levers contacts another set of press-button switches. After the levers and switches come into contact, the swing arm tilts with the help of the rotating shaft, causing the levers to move downwards. This prevents the levers from activating the press-button switches, thus achieving targeted air cooling of the welded fabric. This avoids wasting compressed air and also prevents the unjoined fabric from being air-cooled.

[0013] Preferably, it also includes a receiving groove and guide rollers. The top end and the inclined end of the lever are respectively provided with grooves, and the two sets of grooves are connected to form a receiving groove. Multiple sets of guide rollers are rotatably arranged inside the receiving groove. When the lever contacts the bottom end of the push switch with the cooperation of the inclined end, the multiple sets of guide rollers rotate adaptively, thereby reducing the frictional wear between the push switch and the lever and improving the service life.

[0014] Preferably, it also includes a protective cover, side plates, and bolts. Multiple sets of side plates are provided on both sides of the protective cover. The side plates are fixedly connected to the top of the workbench through partitions. The servo motor and coupling are both inside the protective cover. The protective cover is fixedly installed on the workbench to shield the servo motor and coupling, preventing the rotating coupling from causing accidental injury to the workers and improving safety protection.

[0015] Preferably, it also includes a partition, with a partition provided at the top of the conveyor plate; the partition divides the conveyor plate into two areas to prevent the fabric in the other area from being blown away when the welded fabric is cooled by air.

[0016] Preferably, it also includes adjustable feet, with multiple sets of adjustable feet at the bottom of the support frame; the multiple sets of adjustable feet work together with the support frame to provide stable support for the worktable and improve support stability.

[0017] Preferably, a protective pad is also included, with the swing arm having a protective pad; the swing arm is tilted when passing the press switch, and is vertical with the help of the counterweight when leaving the press switch; the protective pad prevents the swing arm from hard collision with the limit block, thus improving its service life.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: In use, the operator places the first pair of curtains on one set of workstations of the dual-station assembly. Under the control of the controller, the dual-station assembly moves the first pair of curtains to directly below the pressing block assembly. The pressing block assembly presses the overlapping part of the first pair of curtains and welds it to the dual-station assembly, realizing the rapid splicing of the first pair of curtains. During this process, the second pair of curtains is placed on the dual-station assembly, and the dual-station assembly is started to move in the opposite direction, so that the second pair of curtains moves directly below the pressing block assembly. At the same time, the air-cooling component is started to cool the welded part of the first pair of curtains while moving the first pair of curtains away from the pressing block assembly. When the second pair of curtains moves directly below the pressing block assembly, the operator directly unloads the first pair of curtains and places the third pair of curtains on the dual-station assembly. This realizes that when the curtains are welded and unloaded, the air-cooling component performs targeted air cooling, improving processing efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the first isometric structure of the present invention; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 It is an enlarged structural diagram of the slide rail and limit frame, etc. Figure 4 This is an enlarged structural diagram of the servo electric cylinder and pressure block, etc. Figure 5 It is an enlarged structural diagram of the air compressor and push-button switch, etc. Figure 6 It is an enlarged structural diagram of components such as the fixed block and the lead screw; Figure 7 yes Figure 6 A partially enlarged structural diagram of section A in the middle; Figure 8 It is an enlarged structural diagram of the movable seat and slider, etc. Figure 9 This is a partial cross-sectional structural diagram of the push-button switch and toggle mechanism; Figure 10 It is an enlarged structural diagram of the protective cover and bolts, etc. Figure 11 This is a schematic diagram of the second isometric structure of the present invention.

[0020] In the attached diagram, the following markings are used: 101, worktable; 102, support frame; 103, limit frame; 104, controller; 105, adjustable foot; 201, support; 202, bracket; 203, servo electric cylinder; 204, lifting plate; 205, pressure block; 206, guide bar; 301, slide rail; 302, slider; 303, moving seat; 304, conveyor plate; 305, fixed block; 306, servo motor; 307, coupling; 308, lead screw; 309, ultrasonic welding head; 310, protective cover. 311. Side plate; 312. Bolt; 313. Partition; 401. Air compressor; 402. Buffer tank; 403. No. 1 air supply pipe; 404. T-pipe; 405. No. 2 air supply pipe; 406. Support rod; 407. Nozzle; 408. Press switch; 501. Vertical plate; 502. Vertical plate; 503. Limiting block; 504. Rotating shaft; 505. Pulley; 506. Inclined end; 507. Counterweight; 508. Swing rod; 509. Receiving groove; 510. Guide roller; 511. Protective pad. Detailed Implementation

[0021] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0022] like Figures 1 to 11 As shown, the fabric cutting and splicing equipment of the present invention adopts a modular and integrated design concept, including a workbench 101 as a basic support component, a support frame 102 fixed to the bottom of the workbench 101, a limiting frame 103 set at the top of the workbench 101, and a controller 104 fixed at the top of the workbench 101. The workbench 101 is used to install and support all functional components, the support frame 102 provides stable structural support for the equipment, the limiting frame 103 serves as a mechanical limiting mechanism to limit the extreme positions of moving parts, and the controller 104 serves as a control center to coordinate the action sequence of various automated components. It should be noted that the controller 104 integrates a programmable logic control module and necessary electrical wiring. Its electrical connection method and control program writing are existing technologies in the field and will not be described in detail here. In order to adapt to the flatness of different workshop floors, the bottom of the support frame 102 is provided with multiple sets of adjustable feet 105. By adjusting the height of the adjustable feet 105, the influence of uneven ground on the levelness of the equipment can be eliminated, thereby improving the accuracy of welding positioning. Furthermore, the device also includes a pressure block assembly mounted on the workbench 101. This pressure block assembly is used to apply a precise and controllable clamping force to the splice of the two sets of curtain fabrics. Specifically, the pressure block assembly includes a support 201 fixed to the top of the workbench 101, a bracket 202 fixed to the top of the support 201, a servo electric cylinder 203 mounted to the top of the bracket 202, a lifting plate 204 connected to the bottom moving end of the servo electric cylinder 203, a pressure block 205 fixed to the bottom end of the lifting plate 204, and a light bar 206 fixed to the top of the lifting plate 204. The light bar 206 is connected to the bracket. The linear bearing on 202 is in sliding engagement, thus providing precise guidance for the vertical movement of the lifting plate 204. The servo electric cylinder 203 is electrically connected to the controller 104. As an alternative, the servo electric cylinder 203 can also be replaced by a pneumatic-hydraulic booster cylinder or a cylinder with a pressure sensor to achieve similar precise pressure control. It should be noted that there is relative movement at the sliding engagement between the light bar 206 and the bracket 202. After long-term use, gaps may be generated due to wear. Therefore, a self-lubricating copper sleeve or a sealing dust ring can be added to the sliding engagement to reduce dust intrusion and extend service life. Furthermore, the equipment also includes a dual-station assembly, which is mounted on the worktable 101 inside the limiting frame 103. This assembly is used to realize manual feeding, automatic conveying, and alternating welding of the fabric. Specifically, the dual-station assembly includes a slide rail 301 fixed to the top of the worktable 101, a slider 302 slidably mounted on the slide rail 301, a movable seat 303 fixed to the slider 302, a conveyor plate 304 connected to the top of the two movable seats 303, a fixing block 305 fixed to the bottom of each movable seat 303, a servo motor 306 mounted on the worktable 101, a coupling 307 connected to the output of the servo motor 306, a lead screw 308 rotatably mounted inside the limiting frame 103 and threadedly connected to the two fixing blocks 305, and two ultrasonic welding heads 309 fixed to the conveyor plate 304. The servo motor 306 and the ultrasonic welding heads 309 are respectively connected to the controller 101. 4. Electrical control connection; As an alternative, the lead screw 308 drive can also be replaced by a combination of synchronous belt and linear motor, which can also realize the reciprocating linear motion of the conveyor plate 304; It should be noted that the lead screw 308, as an exposed moving part, is prone to dust accumulation and accelerated wear after long-term operation. Therefore, a retractable dust cover or corrugated pipe protective sleeve can be installed inside the limit frame 103 to isolate the lead screw 308 from the external environment; In addition, the servo motor 306 and coupling 307 are both rotating moving parts, which pose a risk of mechanical injury. Therefore, the equipment also includes a protective cover 310. Multiple sets of side plates 311 are respectively provided on both sides of the protective cover 310. The side plates 311 are fixedly connected to the top of the worktable 101 by bolts 312, so that the servo motor 306 and coupling 307 are completely located inside the protective cover 310, effectively preventing accidental contact by operators; Furthermore, a partition 313 is fixed at the top of the conveyor plate 304. The partition 313 divides the upper surface of the conveyor plate 304 into two independent working areas along the conveying direction. Each working area corresponds to a set of ultrasonic welding heads 309. The function of the partition 313 is to block the airflow from blowing onto the unwelded curtain on the other side when the air-cooling assembly blows air to cool the curtain that has been welded on one side, thereby preventing the unwelded curtain from shifting or wrinkling due to airflow disturbance.

[0023] Furthermore, the equipment also includes an air-cooling component for rapidly cooling the spliced ​​fabric, thereby shortening the curing time of the welding area and improving overall production efficiency. Specifically, the air-cooling component includes an air compressor 401, a buffer tank 402, a first air supply pipe 403, a three-way pipe 404, a second air supply pipe 405, a support rod 406, a nozzle 407, a push-button switch 408, and two sets of lever assemblies installed on the top of the conveyor plate 304. The output end of the air compressor 401 is connected to the input end of the buffer tank 402, the output end of the buffer tank 402 is connected to the input end of the first air supply pipe 403, the output end of the first air supply pipe 403 is connected to the input end of the three-way pipe 404, and the two sets of output ends of the three-way pipe 404 are respectively connected to the input ends of a set of second air supply pipes 405. Each set of second air supply pipes 405 has a nozzle 407 installed at its output end. The second air supply pipe 405 is fixedly connected to the workbench 101 by a set of support rods 406. Each set of second air supply pipes 405 has a push switch 408 connected in series. It should be understood that the air compressor 401 and the buffer tank 402 constitute an independent air source system. The function of the buffer tank 402 is to store compressed air and stabilize the output pressure, thereby avoiding frequent start and stop of the air compressor 401 and ensuring that the airflow pressure ejected from the nozzle 407 is constant. The push switch 408 is a mechanical roller type two-position three-way pneumatic reversing valve with a return spring inside. When the external lever presses its roller, the valve opens and compressed air passes through. When the external force is removed, the valve automatically closes. It should be noted that after long-term operation, the return spring inside the push switch 408 may fail due to fatigue. Therefore, the push switch 408 can be fixed to the support rod 406 by bolt connection for quick replacement.

[0024] Furthermore, the specific structure of the lever assembly includes a vertical plate 501 fixed to the conveyor plate 304, two sets of vertical plates 502 fixed to the vertical plate 501, a limiting block 503 set at the top of the vertical plate 501, a swing rod 508 rotatably disposed between the two sets of vertical plates 502 via a rotating shaft 504, a lever 505 fixed at the top of the swing rod 508, and a counterweight 507 fixed at the side of the swing rod 508. The limiting block 503 is located between the two sets of vertical plates 502. The lever 505 has an inclined end 506. The gravity of the counterweight 507 keeps the lever 505 vertical when no external force is applied. The limiting block 503 limits the rotational limit position of the swing rod 508 under the action of the counterweight 507. It should be understood that when the conveyor plate 304 moves in a certain direction, the lever 505 moves with the conveyor plate. When 304 moves together, if the inclined end 506 faces the press switch 408, the inclined end 506 guides the lever 505 to press the press switch 408, triggering the press switch 408 to open the air passage; conversely, if the back surface of the lever 505 faces the press switch 408, when the press switch 408 contacts the lever 505, it will push the swing arm 508 to rotate backward around the pivot 504, and the lever 505 will move backward to avoid it, thus preventing the press switch 408 from being triggered; this directional selective triggering mechanism ensures that the corresponding nozzle 407 sprays cooling air only when the welded curtain moves away from the pressure block 205, while the nozzle 407 does not spray air when the unwelded curtain moves closer to the pressure block 205, thus realizing the on-demand use of compressed air and avoiding unnecessary cooling.

[0025] Furthermore, in order to reduce long-term frictional wear between the toggle block 505 and the roller of the push switch 408, grooves are respectively provided on the top end and the inclined end 506 of the toggle block 505. The two sets of grooves are connected to form an integral receiving groove 509. Multiple sets of guide rollers 510 are rotatably arranged inside the receiving groove 509 via a rotating shaft. The outer circumferential surface of the guide rollers 510 protrudes slightly from the surface of the toggle block 505. When the inclined end 506 of the toggle block 505 contacts the push switch 408, the push switch 408 first contacts the guide rollers 510 and drives the guide rollers 510 to roll, thereby converting sliding friction into rolling friction and significantly reducing the wear rate of the contact surface. Furthermore, in order to prevent the swing arm 508 from rigidly colliding with the limit block 503 and causing impact damage when it rotates rapidly under the action of the counterweight 507, a protective pad 511 is fixed on the side of the swing arm 508 opposite to the limit block 503. The protective pad 511 can be made of rubber or polyurethane elastomer material, which can effectively absorb impact energy and reduce noise.

[0026] like Figures 1 to 11As shown, in the fabric cutting and splicing equipment of the present invention, during operation, the operator first places the first pair of fabrics that have been manually overlapped on the left working area of ​​the conveyor plate 304, and aligns the overlapping part of the pair of fabrics directly above the ultrasonic welding head 309 on the left. Then, the controller 104 controls the servo motor 306 to start. The servo motor 306 drives the lead screw 308 to rotate through the coupling 307. The fixing block 305, which is threaded with the lead screw 308, drives the moving seat 303 and the conveyor plate 304 to move horizontally to the left along the slide rail 301. When the conveyor plate 304 moves to the left limit position, the inner wall of the limiting frame 103 contacts the end of the conveyor plate 304 or the moving seat 303, realizing mechanical hard limiting. At this time, the ultrasonic welding head 309 on the left... Positioned directly below pressure block 205, the controller 104 sends a command to the servo electric cylinder 203, which drives the lifting plate 204 to move pressure block 205 downwards until the pressure block 205 presses the overlapping area of ​​the curtain fabric against the upper surface of the left ultrasonic welding head 309. The controller 104 then activates the left ultrasonic welding head 309, which generates high-frequency mechanical vibration, causing the rubber material at the overlapping area of ​​the two layers of curtain fabric to rub and heat up, rapidly fusing together. During welding, the operator places the second pair of curtain fabrics, which have already been manually overlapped, in the working area on the right side of the conveyor plate 304, aligning the overlapping part directly above the right ultrasonic welding head 309. After welding is completed, the controller 104 controls the servo electric cylinder 203 to move pressure block 205 downwards. 05 rises, then controls the servo motor 306 to rotate in the opposite direction, and the conveyor plate 304 begins to move to the right. During the movement of the conveyor plate 304 to the right, the left side curtain that has been welded gradually moves away from the pressure block 205 along with the conveyor plate 304. At this time, the left side paddle assembly moves to the right along with the conveyor plate 304. Since the inclined end 506 of the paddle assembly faces to the right (i.e., towards the press switch 408), the inclined end 506 smoothly presses down the left side press switch 408 during the movement. The left side press switch 408 is opened, and the compressed air in the buffer tank 402 is sprayed out sequentially through the first air supply pipe 403, the three-way pipe 404, the left side second air supply pipe 405, and the left side nozzle 407 to force-cool the seam of the left side curtain that has just been welded. When the feeding plate 304 moves to the right limit position, the ultrasonic welding head 309 on the right side is exactly below the pressure block 205. At the same time, the left-side toggle block assembly completely passes the left-side press switch 408. The press switch 408 automatically resets and closes, and the air jet stops. At this time, the controller 104 controls the servo electric cylinder 203 to descend again and starts the right-side ultrasonic welding head 309 to perform the second welding. While the second welding is in progress, the operator removes the cooled left-side finished curtain from the feeding plate 304 and places the third pair of curtains in the left-side working area. This cycle repeats, so that while one welding station is welding, another station is unloading and loading. The operation time of the two stations overlaps, thereby greatly improving the output rate of the equipment per unit time.

[0027] The main function achieved by this invention is as follows: through the compact structure of two sets of ultrasonic welding heads 309 fixed on a conveyor plate 304, combined with the drive of the lead screw 308 and the mechanical limiting of the limiting frame 103, the parallel operation of alternating welding at two workstations and manual feeding is realized. At the same time, through the purely mechanical lever assembly composed of the swing arm 508, the lever block 505, the inclined end 506, the counterweight block 507 and the limiting block 503, the corresponding side of the push switch 408 is automatically and selectively triggered by the moving direction of the conveyor plate 304, thereby realizing directional air cooling after welding is completed.

[0028] The curtain fabric cutting and splicing device of the present invention uses common mechanical methods for installation, connection, or setting. Any method that can achieve its beneficial effects can be implemented. The controller 104, servo electric cylinder 203, servo motor 306, ultrasonic welding head 309, air compressor 401, and push switch 408 of the curtain fabric cutting and splicing device of the present invention are commercially available. Technical personnel in the industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made without departing from the technical principles of the present invention. For example, the lead screw drive can be replaced with a synchronous belt drive or a linear motor drive, the inclined trigger mechanism of the toggle assembly can be replaced with a lever trigger mechanism or a cam trigger mechanism, and a single ultrasonic welding head can be replaced with two parallel welding heads to expand the welding area. The above alternatives can also achieve the basic functions of the present invention, and these improvements and variations should also be considered within the scope of protection of the present invention, which is defined by the appended claims and their equivalents.

Claims

1. A curtain fabric cutting and splicing device, characterized in that, The worktable (101), support frame (102), limit frame (103), and controller (104) are included. The support frame (102) is provided at the bottom of the worktable (101), the limit frame (103) is provided at the top of the worktable (101), and the controller (104) is provided at the top of the worktable (101). The worktable also includes: A pressing assembly, which is mounted on the workbench (101), is used to press the joint of two sets of curtain fabrics together; A dual-station assembly is installed on the worktable (101) inside the limiting frame (103) for feeding and unloading the curtain fabric; Air-cooling components are used to cool the assembled curtain fabric. The pressing assembly, the dual-station assembly, and the air-cooling assembly are all electrically connected to the controller (104).

2. The curtain fabric cutting and splicing equipment as described in claim 1, characterized in that, The pressing block assembly includes a support (201), a bracket (202), a servo electric cylinder (203), a lifting plate (204), a pressing block (205), and a light bar (206). The top of the worktable (101) is provided with a support (201), the top of the support (201) is provided with a bracket (202), the top of the bracket (202) is provided with a servo electric cylinder (203), the bottom moving end of the servo electric cylinder (203) is provided with a lifting plate (204), the bottom end of the lifting plate (204) is provided with a pressing block (205), the top of the lifting plate (204) is provided with a light bar (206), the light bar (206) is slidably connected to the bracket (202), and the servo electric cylinder (203) is electrically connected to the controller (104).

3. The curtain fabric cutting and splicing equipment as described in claim 1, characterized in that, The dual-station assembly includes a slide rail (301), a slider (302), a movable seat (303), a conveyor plate (304), a fixed block (305), a servo motor (306), a coupling (307), a lead screw (308), and an ultrasonic welding head (309). A slide rail (301) is mounted on the top of the worktable (101). A slider (302) is slidably mounted on the slide rail (301). A movable seat (303) is mounted on the slider (302). The tops of both movable seats (303) are connected to the bottom of the conveyor plate (304). The conveyor plate (304) has... Two sets of ultrasonic welding heads (309) are provided. Each set of movable seats (303) has a set of fixed blocks (305) at the bottom. A lead screw (308) is rotatably provided inside the limit frame (103). The lead screw (308) is threadedly connected to the two sets of fixed blocks (305). A servo motor (306) is provided on the worktable (101). The output end of the servo motor (306) is connected to one end of the lead screw (308) through a coupling (307). The ultrasonic welding heads (309) and the servo motor (306) are electrically connected to the controller (104).

4. The curtain fabric cutting and splicing equipment as described in claim 3, characterized in that, The air-cooled assembly includes an air compressor (401), a buffer tank (402), a first air supply pipe (403), a three-way pipe (404), a second air supply pipe (405), a support rod (406), a nozzle (407), a push-button switch (408), and a toggle assembly. The output end of the air compressor (401) is connected to the input end of the buffer tank (402), the output end of the buffer tank (402) is connected to the input end of the first air supply pipe (403), and the output end of the first air supply pipe (403) is connected to the three-way pipe (404) respectively. The input end of the three-way pipe (404) is connected to the input end of the second set of air supply pipes (405). Each set of second set of air supply pipes (405) is equipped with a set of nozzles (407). Each set of second set of air supply pipes (405) is equipped with a set of support rods (406) between the second set of air supply pipes (405) and the worktable (101). Each set of second set of air supply pipes (405) is equipped with a set of push switches (408). Two sets of toggle assemblies are symmetrically arranged at the top of the conveyor plate (304).

5. The curtain fabric cutting and splicing equipment as described in claim 4, characterized in that, The lever assembly includes a vertical plate (501), a vertical plate (502), a limiting block (503), a rotating shaft (504), a lever (505), an inclined end (506), a counterweight (507), and a swing rod (508). The vertical plate (501) is provided on the conveyor plate (304), and two sets of vertical plates (502) are provided on the vertical plate (501). A limiting block (503) is provided at the top of the vertical plate (501) and is located between the two sets of vertical plates (502). A lever (505) is provided at the top of the swing rod (508), and the swing rod (508) is rotatably positioned between the two sets of vertical plates (502) via the rotating shaft (504). An inclined end (506) is provided on the lever (505), and a counterweight (507) is provided on the side end of the swing rod (508).

6. The curtain fabric cutting and splicing equipment as described in claim 5, characterized in that, It also includes a receiving groove (509) and guide rollers (510). The top end of the push block (505) and the inclined end (506) are respectively provided with grooves. The two sets of grooves are connected to form a receiving groove (509). Multiple sets of guide rollers (510) are rotatably arranged inside the receiving groove (509).

7. The curtain fabric cutting and splicing equipment as described in claim 3, characterized in that, It also includes a protective cover (310), side plates (311) and bolts (312). Multiple sets of side plates (311) are provided on both sides of the protective cover (310). The side plates (311) are fixedly connected to the top of the worktable (101) through partitions (313). The servo motor (306) and the coupling (307) are both inside the protective cover (310).

8. The curtain fabric cutting and splicing equipment as described in claim 3, characterized in that, It also includes a partition (313), and the top of the conveyor plate (304) is provided with a partition (313).

9. A curtain fabric cutting and splicing device as described in claim 1, characterized in that, It also includes adjustable feet (105), and the bottom of the support frame (102) is provided with multiple sets of adjustable feet (105).

10. A curtain fabric cutting and splicing device as described in claim 5, characterized in that, It also includes a protective pad (511), which is provided on the swing arm (508).

Images