Belt orienting and conveying mechanism and bag belt sewing mechanism

Abstract

The utility model provides a kind of knot belt directional conveying mechanism and material pocket knot belt sewing mechanism, including control system, support frame, folding knot belt conveying mechanism, folding knot belt bending mechanism, support frame is fixedly arranged on rack, folding knot belt conveying mechanism can realize the clamping rotation or clamping downward conveying of knot belt after folding, folding knot belt conveying mechanism is arranged on the support frame, folding knot belt bending mechanism is used to realize the deflection of the folding end of folding knot belt conveyed by folding knot belt conveying mechanism to sewing station direction, control system is electrically connected with folding knot belt conveying mechanism and folding knot belt bending mechanism.The knot belt directional conveying mechanism can smoothly realize the directional conveying of folding knot belt to sewing station, and then the mechanization automatic sewing of knot belt is realized by material pocket knot belt sewing mechanism, so that the sewing efficiency of knot belt can be greatly improved, and the labor cost and manual labor intensity are reduced.

Description

Technical Field

[0001] This utility model relates to the field of knotting and sewing technology, specifically a knotting and directional conveying mechanism and a material bag knotting and sewing mechanism. Background Technology

[0002] FIBCs, also known as bulk containers or jumbo bags, mainly consist of a bag body, lifting straps, and a storage bag, which is sewn together with the bag body. FIBCs are medium-sized bulk containers, a type of unitized container, used with cranes or forklifts to achieve unitized transportation. They are suitable for transporting large quantities of bulk powdery or lumpy materials, featuring large volume, light weight, and easy loading and unloading, making them a common packaging material. Their characteristics include simple structure, light weight, foldability, small empty space, and low price.

[0003] During the use of plastic bags, a knot is usually sewn onto one side of the bag to facilitate tying the opening. Currently, the knot is typically sewn manually. This manual process involves placing one side of the bag fabric on the sewing machine's sewing station, then placing the folded knot in the middle onto the same station. After placing the folded knot, the sewing machine is started to sew the knot onto the bag fabric. This process is inefficient, costly, and requires significant manual labor over extended periods. Utility Model Content

[0004] The purpose of this utility model is to provide a directional conveying mechanism for knotted tape and a knotted tape sewing mechanism for material bags. The directional conveying mechanism for knotted tape can smoothly realize the directional conveying of folded knotted tape to the sewing station, thereby facilitating the mechanized and automatic sewing of knotted tape by the material bag knotted tape sewing mechanism. This can greatly improve the sewing efficiency of knotted tape while reducing labor costs and manual labor intensity.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a knotting tape directional conveying mechanism, including a control system, a support frame, a folded knotting tape conveying mechanism, and a folded knotting tape bending mechanism. The support frame is fixedly mounted on the machine frame. The folded knotting tape conveying mechanism can realize the clamping rotation or clamping downward conveying of the folded knotting tape. The folded knotting tape conveying mechanism is mounted on the support frame. The folded knotting tape bending mechanism is used to realize the deflection of the folded end of the folded knotting tape conveyed by the folded knotting tape conveying mechanism towards the sewing station. The control system is electrically connected to the folded knotting tape conveying mechanism and the folded knotting tape bending mechanism.

[0006] Preferably, the directional conveying mechanism further includes a lateral conveying mechanism for knotted strips and a folding mechanism for knotted strips; both the lateral conveying mechanism and the folding mechanism for knotted strips can slide up and down and be positioned on the support frame. The lateral conveying mechanism for knotted strips is used to realize the lateral conveying of knotted strips, and the folding mechanism for knotted strips is used to realize the downward folding of the laterally output knotted strips from the lateral conveying mechanism. The control system is electrically connected to the lateral conveying mechanism for knotted strips and the folding mechanism for knotted strips.

[0007] Furthermore, the folded ribbon conveying mechanism includes a first lifting mechanism and a first clamping mechanism. The first lifting mechanism is mounted on the support frame, and the first clamping mechanism includes a first pneumatic finger cylinder. A first gripper is fixedly mounted on each of the two fingers of the first pneumatic finger cylinder. The first lifting mechanism is used to drive the first clamping mechanism to move up and down and to position it. A folded ribbon accommodating space is provided between the two first grippers.

[0008] Furthermore, a horizontal push plate capable of reciprocating is provided on the upper rear side of the two first grippers, the horizontal push plate being used to push the folded knotted tape out from between the two first grippers.

[0009] Furthermore, a first air outlet is provided at the bottom of one of the first grippers, and the air outlet end of the first air outlet is inclined toward the direction of the folded knot band held by the two first grippers.

[0010] Furthermore, the folding and bending mechanism includes a second cylinder, a first support plate, and an air outlet box. Two second air outlets are provided on the air outlet box. The high-pressure airflow ejected from the second air outlets is used to blow the folded end of the folded and bent tape held by the first clamping mechanism toward the sewing station. An air source provides high-pressure airflow to the air outlet box. Two first limiting plates are fixedly provided on both sides of the air outlet box. One of the first limiting plates is fixedly connected to one side of the first support plate. The first support plate is fixedly connected to the movable end of the second cylinder.

[0011] Furthermore, the two second air outlets are flat, and the air outlet ends of the second air outlets are distributed at an angle downwards.

[0012] Furthermore, the lateral conveying mechanism for the knotted tape includes an unwinding mechanism, a lateral support frame, a knotted tape guiding component, a cutting component, a clamping and pulling component, a second lifting mechanism, and an air blowing guiding mechanism. The second lifting mechanism is mounted on the support frame, and the lateral support frame is horizontally mounted on the second lifting mechanism, which enables the lateral support frame to move up and down and be positioned. The unwinding mechanism is used to output the knotted tape. The knotted tape guiding component, the cutting component, and the clamping and pulling component are arranged sequentially from left to right on the lateral support frame. The knotted tape guiding component is used to guide the movement of the knotted tape. The cutting component is used to cut the knotted tape. The clamping and pulling component is used to clamp and pull the free section of the knotted tape. A knotted tape folding and top pressure space is preset between the cutting component and the clamping and pulling component. The air blowing guiding mechanism includes two air blowing pipes. The air outlets of the two air blowing pipes are located above and below the free end of the knotted tape extending from the knotted tape guiding component, respectively. The air outlets of the two air blowing pipes blow high-pressure airflow toward the clamping and pulling component.

[0013] Furthermore, the knot folding mechanism includes a third lifting mechanism and a folding top pressure plate. The third lifting mechanism is mounted on the support frame, and the folding top pressure plate is vertically mounted on the third lifting mechanism. The third lifting mechanism is used to drive the folding top pressure plate to move up and down reciprocally. During the downward movement of the folding top pressure plate, it can realize the downward folding of the knot across the knot folding top pressure space.

[0014] A bag knotting sewing mechanism includes a knotting direction conveying mechanism as described above. The sewing mechanism also includes an electric sewing machine, a bag fabric conveying mechanism, and a conveying support plate. The sewing area of ​​the electric sewing machine is the sewing station. The bag fabric conveying mechanism is used to convey one side of the bag fabric on the conveying support plate to the sewing station.

[0015] The beneficial effects of this utility model are as follows: This utility model utilizes mechanical automation to replace manual labor in the automatic sewing of the knotted straps on the material bags, which greatly improves the sewing efficiency of the knotted straps. At the same time, due to the high efficiency, labor costs are significantly reduced. When using this utility model for automatic sewing of the knotted straps on the material bags, only manual monitoring of the equipment's operating status and timely replenishment of the knotted strap rolls are required, greatly reducing the intensity of manual labor. In practical applications, the coordinated operation of the folded knotted strap conveying mechanism and the folded knotted strap bending mechanism can accurately move the folded end of the knotted strap to the sewing station on the upper part of the material bag fabric, thus providing a reliable guarantee for the subsequent sewing of the knotted strap to the material bag fabric. The vertical movement of the folded knotted strap and the blowing of the folded end of the folded knotted strap by the high-pressure airflow further enhances its effectiveness. This system enables the folded end of the knotted tape to be positioned and conveyed below the sewing pressure plate. This positioning and conveying method requires less space below the sewing pressure plate. By moving the folding pressure plate up and down, the knotted tape can be folded and positioned, providing a stable foundation for the subsequent folded tape conveying and bending mechanisms to perform the conveying and bending actions. By adjusting the vertical height of the lateral conveying mechanism relative to the sewing station, the length of the folded tape can be flexibly adjusted to meet the sewing needs of folded tapes of different lengths. Guided by the high-pressure airflow of the air blowing guide mechanism, the free end of the newly formed knotted tape after cutting can be kept in a basically horizontal position, which facilitates the precise clamping of the free end of the knotted tape by the clamping and pulling components, thereby facilitating the cyclical sewing of the knotted tape. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the unwinding mechanism; Figure 3 This is a side view of the overall structure of this utility model; Figure 4 This is a front view of the overall structure of this utility model; Figure 5 This is a schematic diagram of the structure of the transverse conveyor mechanism for the belt knot; Figure 6 This is a schematic diagram showing the relative distribution of the electric sewing machine, the folding and knotting conveyor mechanism, and the folding top pressure plate; Figure 7A schematic diagram illustrating the state of the top pressure plate being pressed down and folded to achieve the desired knot. Figure 8 This is a schematic diagram illustrating the state of bending the folded end of the folded knotted strip in one embodiment of the folding mechanism. Figure 9 This is a schematic diagram illustrating the bending state of the folded end of the folded strip as an alternative embodiment of the folding mechanism. Figure 10 A schematic diagram showing the horizontal placement of the free end of the air-blowing mechanism. Figure 11 Figure 1 Enlarged view of point A in the middle; Figure 12 for Figure 1 Enlarged view at point B in the middle; Figure 13 for Figure 1 Enlarged view at point C; Figure 14 for Figure 1 Enlarged view at point D; Figure 15 for Figure 3 Enlarged view at point E in the middle; Figure 16 for Figure 3 Enlarged view at point F; Figure 17 for Figure 5 Enlarged view at point G; In the diagram: 1. Support frame; 21. First clamping mechanism; 211. First pneumatic finger cylinder; 212. First gripper; 2121. First vent; 2122. First air outlet; 213. Horizontal push plate; 214. First cylinder; 22. First lifting mechanism; 221. Second cylinder; 222. First moving slider; 23. Rotary seat; 231. Rotating swing arm; 24. Push plate; 25. L-shaped push rod; 31. Third cylinder; 32. First support plate; 33. Air outlet box; 331. Second... 34 First limiting plate, 41 Unwinding mechanism, 411 Unwinding roller, 412 Guide frame, 413 First driving roller, 414 Second driven roller, 415 Fourth cylinder, 416 First rotating support shaft, 417 First motor, 418 Unwinding support frame, 42 Lateral support frame, 421 Knotting blocking rod, 422 First through tube, 423 First detection plate, 424 First support plate, 425 First guide groove, 4251 First pressure rod. 426 Second guide groove, 4261 First guide roller, 431 U-shaped groove, 4311 Second guide roller, 4312 Third guide roller, 4313 Fourth guide roller, 441 Cutting block, 4411 Cutting butt groove, 442 Fifth cylinder, 443 Cutting blade, 444 Heating block, 451 Sixth cylinder, 452 Second moving slider, 453 Second pneumatic finger cylinder, 454 Second gripper, 461 Transmission screw, 462 Screw nut, 46 3. Movable support frame, 464. Drive rod, 471. First air blowing pipe, 472. Second air blowing pipe, 473. Air outlet, 481. Third lifting mechanism, 4811. Second motor, 4812. First synchronous belt, 4813. Second synchronous belt, 482. Third moving slider, 483. Folded top pressure plate, 5. Electric sewing machine, 51. Sewing station, 52. Sewing pressure plate, 61. Conveying gripper, 7. Conveying support plate, 8. Material bag fabric, 101. Knotting belt, 102. Folded knotting belt. Detailed Implementation

[0018] The following will describe specific embodiments and appendices. Figure 1-17 The technical solutions in the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some preferred embodiments of this utility model, and not all embodiments. Those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0019] This utility model provides a belt-knotting directional conveying mechanism (such as...) Figure 1 , Figure 8As shown, the system includes a control system, a support frame 1, a folding and knotting tape conveying mechanism, and a folding and knotting tape bending mechanism. The support frame 1 is fixedly mounted on the machine frame. In actual application, the machine frame serves as the support structure for the sewing and knotting tape device for the material bag fabric 8. Depending on actual needs, the support frame 1 can be positioned on one side of the machine frame or positioned horizontally across the top of the machine frame in an I-shape. The folding and knotting tape conveying mechanism can clamp and rotate the folded and knotted tape and convey it downwards. In other words, the folding and knotting tape conveying mechanism can clamp the folded and knotted tape 102 and perform subsequent rotational movements. Alternatively, it can clamp the folded knot tape 102 and perform subsequent vertical downward movements. In practical applications, one of the above-mentioned functions of the folded knot tape conveying mechanism can be selected according to actual needs. In actual production, various methods can be used to achieve continuous conveying of the folded knot tape 102 at the clamping station of the folded knot tape conveying mechanism. The folded knot tape conveying mechanism is mounted on the support frame 1. The folded knot tape bending mechanism is used to deflect the folded end of the folded knot tape conveyed by the folded knot tape conveying mechanism toward the sewing station. The control system is connected to the folded knot tape conveying mechanism and... The folding and bending mechanism is electrically connected. In this specific embodiment, the control system includes a controller, an industrial touch screen, and relays, among other electrical control components. The controller is a PLC programmable logic controller (PLC). The industrial touch screen is used for human-machine interaction and display of operating status. The relays are used to execute the on / off switching of control signals. The PLC utilizes relays and other related electrical components to achieve electrical connections between the various actuators in the folding and bending mechanism. The folding and bending mechanism operate under the coordinated control of the control system. In this specific embodiment, to ensure that the folded end of the folded knot tape can be accurately conveyed to the sewing station, the control system can be used to control the bending mechanism of the folded knot tape to first deflect the folded end of the folded knot tape towards the sewing station. After the deflection is completed, the folded knot tape conveying mechanism will convey the clamped folded knot tape downwards. During the continuous downward movement of the folded knot tape, the folded end of the folded knot tape will continuously move laterally on the upper surface of the material bag fabric 8 until it reaches the preset sewing station, thereby completing the directional conveying of the folded end of the folded knot tape.

[0020] Based on the above embodiments, to facilitate automatic folding of the knotting tape and ensure continuous and stable conveying of the folded knotting tape, this utility model further includes a lateral conveying mechanism and a folding mechanism for the knotting tape. Both the lateral conveying mechanism and the folding mechanism can slide and be positioned vertically on the support frame 1. The lateral conveying mechanism is used to convey the knotting tape laterally. In practical applications, by adjusting the vertical height difference between the lateral conveying mechanism and the sewing station, the length of the folded knotting tape can be adjusted to meet the sewing needs of folded knotting tapes of different lengths. The folding mechanism is used to press down and fold the knotting tape output laterally by the lateral conveying mechanism. The control system... The system is electrically connected to the lateral conveying mechanism and the folding mechanism of the knotted ribbon. Specifically, the PLC programmable logic controller in the control system uses relays and other related electrical components to achieve electrical connection with each execution component in the lateral conveying mechanism and the folding mechanism of the knotted ribbon. This facilitates the automated control of the lateral conveying mechanism and the folding mechanism of the knotted ribbon using the control system. In practical applications, after the lateral conveying mechanism of the knotted ribbon is used to position and convey the knotted ribbon, the folding mechanism of the knotted ribbon is used to complete the directional folding operation of the knotted ribbon. Then, the folding mechanism of the knotted ribbon, the folding conveying mechanism of the knotted ribbon, and the folding bending mechanism of the knotted ribbon are used in coordination to convey the folded end of the folded knotted ribbon to the sewing station.

[0021] Based on the above embodiments, a specific implementation of the folded knot conveying mechanism for clamping and downward conveying the folded knot 102 is as follows: The folded knot conveying mechanism includes a first clamping mechanism 21 and a first lifting mechanism 22. The first lifting mechanism 22 is mounted on the support frame 1. The first clamping mechanism 21 includes a first pneumatic finger cylinder 211. A first gripper 212 is fixedly mounted on each of the two fingers of the first pneumatic finger cylinder 211. A folded knot accommodating space is provided between the two first grippers 212. The first pneumatic finger cylinder 211 drives the two first grippers 212 to move closer or further apart. The PLC programmable logic controller controls the operation of the first pneumatic finger cylinder 211 according to a preset program to realize the clamping and release of the folded knot. Specifically, the PLC programmable logic controller controls the extension and retraction control of the first pneumatic finger cylinder 211 by controlling the corresponding pneumatic solenoid valve reversing valve; thus realizing the clamping of the folded knot. Tightening and releasing; the first lifting mechanism 22 is used to drive the first clamping mechanism 21 to move up and down and position. Specifically, the first lifting mechanism 22 includes a second cylinder and a first moving slider 222. The second cylinder is fixedly mounted upside down on the support frame 1. The piston rod of the second cylinder extends downward and is connected to the first moving slider 222. The first moving slider 222 is slidably mounted on the guide rail of the support frame 1 in the vertical direction. The first clamping mechanism 21 is fixed on the first moving slider 222. The first clamping mechanism 21 moves up and down along the guide rail by being driven by the second cylinder, thereby driving the first gripper 212 to complete the downward conveying of the folded knotted strip. The PLC programmable logic controller controls the extension and retraction stroke of the second cylinder according to the preset program, and precisely adjusts the up and down movement position of the first clamping mechanism 21 to achieve accurate conveying and positioning of the folded knotted strip. Specifically, the PLC programmable logic controller controls the extension and retraction of the second cylinder by controlling the corresponding pneumatic solenoid valve reversing valve.

[0022] Based on the above embodiments, a specific embodiment of the folded ribbon conveying mechanism for clamping and rotating the folded ribbon 102 is as follows: The folded ribbon conveying mechanism includes a rotation drive mechanism and a second clamping mechanism. The rotation drive mechanism is mounted on the support frame 1. The second clamping mechanism includes a second pneumatic finger cylinder. A second gripper is fixedly mounted on each of the two fingers of the second pneumatic finger cylinder. A folded ribbon accommodating space is provided between the two second grippers. The second pneumatic finger cylinder drives the two second grippers to move closer or further apart. The PLC programmable logic controller controls the operation of the second pneumatic finger cylinder according to a preset program to realize the clamping and releasing of the folded ribbon. Specifically, the PLC programmable logic controller realizes the clamping and releasing of the folded ribbon by controlling the corresponding pneumatic solenoid valve reversing valve. The extension and retraction control of the pneumatic finger cylinder enables the clamping and release of the folded knotted tape. The rotation drive mechanism is used to drive the second clamping mechanism to rotate and position at a fixed angle. Specifically, the rotation drive mechanism includes a rotary cylinder, which is mounted on the support frame 1. A rotary swing arm 231 is mounted on the rotary seat 23 of the rotary cylinder. The rotation of the rotary seat 23 enables the rotation of the rotary swing arm 231. The PLC programmable logic controller controls the rotation angle of the rotary cylinder by controlling the corresponding pneumatic solenoid valve reversing valve. The rotary cylinder is fixedly mounted on the rotary swing arm 231. When the second pneumatic finger cylinder clamps and fixes the folded knotted tape 102, the rotary cylinder drives the rotary swing arm 231 to rotate, which allows the folded end of the folded knotted tape 102 to rotate towards the sewing station.

[0023] After the two first grippers 212 or the two second grippers release the folded knotted tape 102, to facilitate the complete disengagement of the folded knotted tape from between the two first grippers 212 or the two second grippers, a horizontally reciprocating push plate 213 is provided on the upper rear side of the two first grippers 212 or the two second grippers. The horizontal push plate 213 moves up and down synchronously with the first grippers 212 or the second grippers. The horizontal push plate 213 is used to push the folded knotted tape out from between the two first grippers 212 or the two second grippers. Specifically, this is done on the first moving slider 222 or the rotating swing arm 231. A first cylinder 214 is fixedly installed on the upper part. The front end of the piston rod of the first cylinder 214 is connected to the horizontal push plate 213. The PLC programmable logic controller controls the extension and retraction of the first cylinder 214 through a pneumatic solenoid valve. Under the control of the preset program, when the first gripper 212 or the second gripper releases the folded knot, the first cylinder 214 pushes the horizontal push plate 213 to move towards the folded knot and completely pushes the folded knot out between the two first grippers 212 or the second grippers. After the folded knot is pushed out, the first cylinder 214 drives the horizontal push plate 213 to reset backward, preparing for the next push action.

[0024] Based on the above embodiments, after the folded knot 102 is clamped by two first jaws 212 or two second jaws, in order to reduce the situation where the two knots 101 at the folded end of the folded knot 102 arch away from each other, a first vent hole 2121 is provided on the side wall of one of the first jaws 212 and the second jaw. At the same time, a first air outlet 2122 is provided at the bottom of the first jaws 212 and the second jaw. The first air outlet 2122 is connected to the first vent hole 2121. The first vent hole 2121 is connected to the air source by an air pipe. The air pipe is connected to the corresponding pneumatic solenoid valve. The on and off control of the pneumatic solenoid valve is realized by a PLC programmable logic controller. In order to facilitate the high-pressure airflow from the first air outlet 2122 to press down the arched part at the folded end, the air outlet of the first air outlet 2122 is tilted towards the direction of the folded knot 102 clamped by the two first jaws 2122 or the two second jaws.

[0025] Based on the function of clamping and conveying the folded ribbon downwards by the folded ribbon conveying mechanism, a specific embodiment of the folded ribbon bending mechanism is as follows: The folded ribbon bending mechanism includes a third cylinder 31, a first support plate 32, and an air outlet box 33. Two second air outlets 331 are provided on the air outlet box 33. The high-pressure airflow ejected from the second air outlets 331 is used to blow the folded end of the folded ribbon clamped by the first clamping mechanism 21 towards the sewing station direction. An air source provides high-pressure airflow to the air outlet box 33; specifically, the air source is an air compressor known in the prior art. The air compressor is connected to the air outlet box 33 via an air pipe and a pneumatic solenoid valve. The PLC programmable logic controller controls the opening and closing of the pneumatic solenoid valve to adjust the jet timing and duration of the second air outlet 331, so that the high-pressure airflow acts precisely on the folded end of the folded strip, pushing it to smoothly deflect towards the sewing station, achieving stable and reliable bending guidance. The two second air outlets 331 are symmetrically arranged to ensure uniform airflow force. To further improve the balance of the effect of the two second air outlets 331 on the folded strip, the two second air outlets 331 are flattened, and the air outlet ends of the second air outlets 331 are tilted downwards. The second air outlet 331 is optimized to have an angle of 15 to 20 degrees with the horizontal plane, ensuring that the airflow is blown diagonally downward along the folded end of the folded strip, effectively guiding its smooth deflection. Two first limiting plates 34 are fixedly installed on both sides of the air outlet box 33. The two first limiting plates 34 and the air outlet box 33 structurally form a U-shaped structure. The opening of the U-shaped structure faces the sewing station. Before the folded end of the folded strip is blown and bent, the folded end of the folded strip is already located in the aforementioned U-shaped groove, thereby utilizing the U-shaped groove to achieve smooth guiding and sliding of the folded strip. One of the first limiting plates 34 is... The first support plate 32 is fixedly connected to one side of the first support plate 32, and the first support plate 32 is fixedly connected to the movable end of the third cylinder 31. The third cylinder 31 is horizontally fixedly installed on one side of the support frame 1. The extension and retraction of the third cylinder 31 drives the air outlet box 33 to move horizontally back and forth on the right side of the sewing station, ensuring that the air outlet box 33 performs a bending operation after the folded knot tape is clamped, and returns to its original position in time after the bending is completed. The PLC programmable logic controller uses a pneumatic solenoid valve to control the extension and retraction of the third cylinder 31, thereby realizing the precise reciprocating motion of the air outlet box 33, ensuring that the clamping and bending actions of the folded knot tape are connected in an orderly manner.

[0026] Based on the function of clamping and rotating the folded ribbon in the folded ribbon conveying mechanism, a specific embodiment of the folded ribbon bending mechanism is as follows: The folded ribbon bending mechanism includes a seventh cylinder, an L-shaped push rod 25, and a push plate 24. The seventh cylinder is fixedly mounted on one side of the support frame. The L-shaped push rod 25 is fixedly mounted on the telescopic end of the seventh cylinder. The push plate 24 is fixedly mounted on the L-shaped push rod 25. The front part of the L-shaped push rod 25 and the push plate 24 form an L-shaped structure. The telescopic movement of the seventh cylinder drives the push plate 24 to reciprocate at the sewing station. When the push plate 24 moves towards the sewing station, it can push the folded end towards the sewing station (e.g., ...). Figure 9 As shown, the extension and retraction control of the seventh cylinder is implemented using a PLC programmable logic controller, which in turn controls the reciprocating movement of the push plate 24. When the push plate 24 moves forward and reaches the set position, it is not in the sewing station, so that the push plate 24 will not hinder the subsequent sewing work of the folded knot tape and the material pocket piece. After the sewing work is completed, the seventh cylinder is controlled by the PLC programmable logic controller to make the push plate 24 return to the initial working position so that the folded end can be pushed and deflected again next time.

[0027] Based on the above embodiments, a specific implementation of one embodiment of the knotting tape transverse conveying mechanism is as follows: The knotting tape transverse conveying mechanism includes an unwinding mechanism 41, a transverse support frame 42, a knotting tape guiding assembly, a cutting assembly, a clamping and pulling assembly, a second lifting mechanism, and an air blowing guiding mechanism. The second lifting mechanism is disposed on the support frame 1, and the transverse support frame 42 is horizontally disposed on the second lifting mechanism, and the second lifting mechanism can realize the up and down movement and positioning of the transverse support frame 42. Specifically, the second lifting mechanism includes a transmission screw 461, a screw nut 462, and a movable support frame 463. The transmission screw 461 is rotatably and vertically mounted on the support frame 1, and the screw nut 462 is sleeved on the transmission screw 461 and fixedly connected to the movable support frame 463. The frame 463 slides along the vertical guide rail on the support frame 1. Rotation of the transmission screw 461 causes the movable support frame 463 to rise and fall along the vertical guide rail. The transmission screw 461 can be driven by a motor or manually. In this embodiment, manual rotation is used. Specifically, a drive rod 464 is rotatably mounted on one side of the support frame 1. One end of the drive rod 464 is connected to the transmission screw 461 via a bevel gear pair. Rotating the drive rod 464 drives the transmission screw 461 to rotate synchronously, thus adjusting the height of the movable support frame 463. A handwheel is provided at the operating end of the drive rod 464 for easy manual adjustment. The height adjustment of the movable support frame 463 can accommodate different folded knot length sewing requirements, improving the equipment's versatility.The unwinding mechanism 41 is used to output the knotted tape. Specifically, the unwinding mechanism 41 includes an unwinding support frame 418, and an unwinding roller shaft 411 is provided at the rear of the unwinding support frame 418. In actual application, the knotted tape is sleeved on the unwinding roller shaft 411, and the unwinding roller shaft 411 enables the rotation of the knotted tape, thereby facilitating the continuous output of the knotted tape. A guide frame 412 is provided on the front side of the unwinding roller shaft 411. The guide frame 412 includes a swing frame and a fixing groove. The swing frame includes two guide rings and two... Guide rings are spaced apart and fixedly connected by two straight rods. A vertical rod is fixedly installed at the lower part of one guide ring, and the vertical rod is rotatably mounted on the unwinding support frame 418. A fixing groove is fixedly installed on the unwinding support frame 418 and adjacent to a corresponding guide ring. A first rotating support shaft 416 is provided in front of the fixing groove, and a first drive roller 413 is provided on the first rotating support shaft 416. The first rotating support shaft 416 is driven to rotate by a first motor 417 provided on the unwinding support frame 418. The first motor 417 uses a chain drive to drive the rotation of the first rotating support shaft 416. A second driven roller 414 is arranged above the first driving roller 413. The second driven roller 414 is located at the movable end of a fourth cylinder 415. The fourth cylinder 415 drives the second driven roller 414 to move up and down, thereby adjusting the gap between it and the first driving roller 413. When the ribbon passes between the first driving roller 413 and the second driven roller 414, the fourth cylinder 415 pushes the second driven roller 414. 4. Press down to clamp the knotted tape with the first drive roller 413. The first motor 417 drives the first drive roller 413 to rotate through chain drive, thereby driving the knotted tape forward and realizing the continuous conveying of the knotted tape on the knotted tape roll. The free end of the knotted tape on the knotted tape roll passes through two guide rings and a fixing groove in sequence and enters the clamping area between the first drive roller 413 and the second driven roller 414. The PLC programmable logic controller sends commands to the contactor to control the start, stop and speed of the first motor 417 to realize the continuous conveying of the knotted tape.The knotting guide assembly, cutting assembly, and clamping and pulling assembly are sequentially arranged on the transverse support frame 42 from left to right. The up-and-down movement of the transverse support frame 42 drives the knotting guide assembly, cutting assembly, and clamping and pulling assembly to move up and down synchronously, thereby facilitating the continuous conveying of the knotting tape. The knotting guide assembly is used to guide the movement of the knotting tape. Specifically, the knotting guide assembly includes a first guide groove 425, a second guide groove 426, and a U-shaped groove 431. The first guide groove 425, the second guide groove 426, and the U-shaped groove 431 are sequentially connected and all three are fixed on the transverse support frame 42. A plurality of first pressure rods 4251 are provided on the first guide groove 425, and the knotting tape is limited by the first pressure rods 4251. The tape moves smoothly along the lower edge of the first guide groove 425. A first guide roller 4261 is set on the right side of the second guide groove 426. From left to right, a second guide roller 4311, a third guide roller 4312, and a fourth guide roller 4313 are arranged sequentially within the U-shaped groove 431. The free end of the tape is clamped between the first driving roller 413 and the second driven roller 414, then enters the second guide groove 426 through the first guide groove 425, passes around the first guide roller 4261, and enters the space between the inner left side wall of the U-shaped groove 431 and the second guide roller 4311. It then enters the space between the third guide roller 4312 and the fourth guide roller 4313, finally exiting from the bottom right side of the U-shaped groove 431. When using the tape guiding assembly to guide the movement of the tape, To prevent the knotted tape from tangling, the conveying of the knotted tape is stopped. A knot-stopping rod 421 is installed on the left side of the transverse support frame 42. The middle of the knot-stopping rod 421 is rotatably positioned on the left side of the transverse support frame 42, and the center of gravity of the knot-stopping rod 421 is to the left of its rotation axis. A tension spring is installed between the lower right end of the knot-stopping rod 421 and the transverse support rod. A first detection plate 423 is installed below the right end of the knot-stopping rod 421. A first support plate 424 corresponding to the first detection plate 423 is installed on the transverse support frame 42. A first proximity switch is installed on the first support plate 424. A first through-tube 422 is installed on the upper left end of the knot-stopping rod 421, and the knotted tape passes through the first through-tube 422. When the knotted tape is in the correct position... During normal conveying, the knotting blocking rod 421 remains in a balanced state. At this time, the first proximity switch cannot detect the first detection plate 423. When the knotted tape becomes knotted, it gets stuck at the first through-tube 422. If the knotted tape is pulled further, it will exert an upward pulling force on the first through-tube 422, causing the left end of the knotting blocking rod 421 to tilt upward and the right end of the knotting blocking rod 421 to press down, so that the first detection plate 423 is close to the first proximity switch. The first proximity switch sends a trigger signal to the PLC programmable logic controller, which then stops the entire device and activates the alarm. After the staff discovers the alarm, they will knot the tape. After the knotted tape is knotted, the normal workflow will be restored.The cutting component is used to cut the knotted strip. In practical applications, the cutting component can be a hot cutting mechanism or a cold cutting mechanism. In this specific embodiment, the cutting component uses a hot cutting mechanism to cut the knotted strip. Specifically, the cutting component includes a fixed support base, a fifth cylinder 442, a cutting blade 443, and a heating block 444. The fixed support base is fixedly mounted on the transverse support frame 42. The fifth cylinder 442 is fixedly mounted on the fixed support base, and its movable end is fixedly connected to a cutting pressure block 441. The cutting blade 443 is fixedly mounted below the cutting pressure block 441. The heating block 444... A heating block 444 is used to heat the cutting blade 443, giving it high-temperature cutting capability. A cutting groove 4411, corresponding to the upper part of the cutting blade 443, is provided at the bottom of the cutting block 441. When the knotted strip is between the cutting blade 443 and the cutting block 441, the fifth cylinder 442 drives the cutting block 441 to move downwards, causing the cutting blade 443 to press against the knotted strip and embed itself into the cutting groove 4411. The high-temperature cutting blade 443 quickly melts and cuts the knotted strip. After cutting the knotted strip, the fifth cylinder 442 drives the cutting block... 441 Reset; The clamping and pulling assembly is used to clamp and pull the free segment of the knot. Specifically, the clamping and pulling assembly includes a sixth cylinder 451, a second movable slider 452, and a second pneumatic finger cylinder 453. The sixth cylinder 451 is horizontally fixed on the transverse support frame 42, and its piston rod is connected to the second movable slider 452. The second movable slider 452 is slidably mounted on the transverse support frame 42. The second pneumatic finger cylinder 453 is fixedly mounted on the second movable slider 452. Two second grippers are provided at the clamping end of the second pneumatic finger cylinder 453. 454, the second gripper 454 opens and closes under pneumatic action to clamp the free end of the knotted strip that wraps around from the bottom right of the U-shaped groove 431. The sixth cylinder 451 drives the second moving slider 452 to move the second pneumatic finger cylinder 453 horizontally to the right, thereby pulling the knotted strip and ensuring the subsequent folding of the knotted strip. The PLC programmable logic controller controls the corresponding pneumatic solenoid reversing valve to realize the extension and retraction of the sixth cylinder 451 and the second pneumatic finger cylinder 453, thereby realizing the coordinated clamping and pulling of the free end of the knotted strip and ensuring accurate and reliable action timing. A pre-set folding pressure space is provided between the cutting component and the clamping and pulling component. The air blowing guide mechanism includes two air blowing pipes. The air outlets of the two air blowing pipes are located above and below the free end of the knotted strip extending from the knotted strip guide component, respectively. The air outlets of the two air blowing pipes blow high-pressure airflow toward the clamping and pulling component. Specifically, the two air blowing pipes include a first air blowing pipe 471 and a second air blowing pipe 472. The first air blowing pipe 471 and the second air blowing pipe 472 are connected to an air compressor through an air pipe. An electromagnetic switch valve is provided on the air pipe. The electromagnetic switch valve is controlled by a PLC programmable logic controller to realize the opening or closing of the air blowing action according to a preset time sequence.The bottom ends of the first air blowing pipe 471 and the second air blowing pipe 472 are arranged parallel to the knot strip and located on the upper and lower sides of the U-shaped groove 431. An air outlet 473 is provided on the right side of the bottom end of the first air blowing pipe 471 and the second air blowing pipe 472. When high-pressure airflow is ejected from the air outlet 473, it blows the free end of the knot strip, causing the free end of the knot strip to point to the right and remain basically straight, facilitating accurate clamping by the second gripper 454.

[0028] Based on the above embodiments, a specific implementation of one embodiment of the knotting folding mechanism is as follows: The knotting folding mechanism includes a third lifting mechanism 481 and a folding top pressure plate 483. The third lifting mechanism 481 is mounted on the support frame 1, and the folding top pressure plate 483 is vertically mounted on the third lifting mechanism 481. The third lifting mechanism 481 is used to drive the folding top pressure plate 483 to move up and down reciprocally. Specifically, the third lifting mechanism 481 includes a second motor 4811, a first synchronous belt 4812, a second synchronous belt, and a third moving slider 482. The first synchronous belt 4812 is vertically rotatably mounted on the support frame 1, and the second synchronous belt is rotatably mounted on the support frame 1. The second motor 4811 is mounted on the support frame 1, and the second synchronous belt is driven to rotate by the second motor 4811. The second synchronous belt drives the first synchronous belt 4812 to rotate synchronously by a transmission shaft. The third moving slider 482 is slidably mounted on the support frame 1 and moves in tandem with the first synchronous belt 4812. One side of 812 is connected, and the reciprocating motion of the first synchronous belt 4812 drives the third moving slider 482 to move up and down vertically. The folding top pressure plate 483 is vertically fixed on the third moving slider 482 and moves up and down synchronously with it. The PLC programmable logic controller controls the start and stop of the second motor 4811 through a contactor, thereby precisely controlling the timing of the up and down reciprocating motion of the folding top pressure plate 483. During the downward movement of the folding top pressure plate 483, it can cross the knot belt. The knotted band on the folding top pressure space is pressed down and folded. When the folding top pressure plate 483 moves down to the position, the folding of the knotted band is completed, and the folded knotted band 102 is formed. The extreme position of the downward movement of the folding top pressure plate 483 is constant. Therefore, the length of the folded knotted band can be adjusted by adjusting the height of the horizontal support frame 42. The higher the height of the horizontal support frame 42, the longer the length of the folded knotted band. The lower the height of the horizontal support frame 42, the shorter the length of the folded knotted band, thereby achieving flexible adjustment of the folding length.

[0029] This utility model also provides a bag knot sewing mechanism (such as...) Figure 1 , Figure 3As shown, the sewing mechanism includes the knotted tape directional conveying mechanism described above. It also includes an electric sewing machine 5, a material bag fabric conveying mechanism, and a conveying support plate 7. The electric sewing machine 5 is a commonly used technical product in the field of knotted tape sewing, so its structure and working principle will not be described in detail. When the electric sewing machine 5 is sewing, the sewing pressure plate 52 automatically presses down to fix the sewn material, facilitating subsequent sewing. The sewing area of ​​the electric sewing machine 5 is the sewing station 51. The electric sewing machine 5 sews the knotted tape 101 and the material bag fabric 8 at the sewing station 51. The material bag fabric conveying mechanism is used to convey one side of the material bag fabric 8 on the conveying support plate 7 to the sewing station 51. The material bag fabric conveying mechanism is a commonly used technical component in the field of fabric conveying, mainly including a reciprocating conveying gripper 61 to clamp and position the fabric. When the material bag fabric 8 is conveyed using the material bag fabric conveying mechanism, the material bag fabric 8 is located at the designated position on the conveying support plate 7. After the conveying gripper 61 clamps the material bag fabric 8, the conveying gripper 61 moves to achieve precise conveying of the material bag fabric 8 and moves it to the designated position. At this time, one side of the material bag fabric 8 is located on the sewing station 51. When the folded end of the folded knot tape 102 is also conveyed to the sewing station 51 above the material bag fabric 8, the PLC programmable logic controller starts the electric sewing machine 5 to automatically sew the folded knot tape 102 and the sewing end of the material bag fabric 8. After completing a single sewing action, the electric sewing machine 5 resets, and at the same time, the conveying gripper 61 returns to the initial position to prepare for the next feeding. The entire process is automatically coordinated by the PLC programmable logic controller to achieve precise alignment and sewing of the folded knot tape 102 and the material bag fabric 8.

[0030] When sewing the knot tape 101 and the material bag fabric 8 using one embodiment of this utility model, the free end of the knot tape roll is first pulled out between the first driving roller 413 and the second driven roller 414, then passes through the first through tube 422, and then, after passing through the knot tape guide assembly, is pulled out from the right end of the U-shaped groove 431 with a certain amount of allowance. Then, the entire device is started by the PLC programmable logic controller to run automatically according to the set operating program. During the automatic operation, the air blowing mechanism 47 is first used to keep the free end of the knot tape 101 horizontally placed. Then, the second pneumatic finger cylinder 453 is used to clamp the free end of the knot tape 101 and pull the free end of the knot tape 101 to the designated position. After the lateral pulling of the knot tape 101 is completed, the folding top pressure plate 483 is moved downward to the designated position. After the folding top pressure plate 483 is moved to the designated position, the folding of the knot tape 101 is completed (e.g., Figure 7As shown), at this time, the fabric piece 8 in the material bag has been moved to the designated sewing position by the conveying gripper 61; then, the third cylinder 31 is activated, causing the air outlet box 33 to move to the designated position. After the air outlet box 33 moves to the designated position, the second air outlet 331 begins to spray high-pressure air. After the second air outlet 331 continues to spray high-pressure air, the folding top pressure plate 483, the first pneumatic finger cylinder 211, and the second cylinder are activated simultaneously, causing the folding top pressure plate 483 to move upward. The two first grippers 212 clamp the folding knot tape 102. At the same time, the second cylinder drives the first pneumatic finger cylinder 21... 1. Moving downwards, the first pneumatic finger cylinder 211 clamps and conveys the folded knot tape 102 downwards, and the second air outlet 331 blows and deflects the folded end of the folded knot tape 102, so that the folded end of the folded knot tape 102 is accurately moved from the upper part of the material bag fabric 8 to the lower part of the sewing pressure plate 52. At the same time as the first pneumatic finger cylinder 211 is started, the PLC programmable logic controller starts the timer. When the timer reaches the preset value, the PLC programmable logic controller immediately triggers the start signal of the electric sewing machine 5, and then the electric sewing machine 5 realizes the automatic sewing action between the folded knot tape 102 and the material bag fabric 8.

[0031] In this utility model, "upper", "lower", "front", "back", "left", and "right" are all relative positions used to facilitate the description of positional relationships, and therefore cannot be understood as absolute positions as limitations on the scope of protection.

[0032] Except for the technical features described in the specification, all other technologies are known to those skilled in the art.

[0033] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. For those skilled in the art, several improvements and modifications can be made without departing from the concept of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A belt-directing conveying mechanism, characterized in that, The system includes a control system, a support frame, a folded knot tape conveying mechanism, and a folded knot tape bending mechanism. The support frame is fixedly mounted on the machine frame. The folded knot tape conveying mechanism can clamp and rotate or clamp and convey the folded knot tape downwards. The folded knot tape conveying mechanism is mounted on the support frame. The folded knot tape bending mechanism is used to deflect the folded end of the folded knot tape conveyed by the folded knot tape conveying mechanism toward the sewing station. The control system is electrically connected to the folded knot tape conveying mechanism and the folded knot tape bending mechanism.

2. The knotted belt directional conveying mechanism according to claim 1, characterized in that, The directional conveying mechanism also includes a lateral conveying mechanism for knotted strips and a folding mechanism for knotted strips. Both the lateral conveying mechanism and the folding mechanism for knotted strips can slide up and down and be positioned on the support frame. The lateral conveying mechanism for knotted strips is used to realize the lateral conveying of the knotted strips, and the folding mechanism for knotted strips is used to realize the downward folding of the knotted strips output laterally by the lateral conveying mechanism. The control system is electrically connected to the lateral conveying mechanism for knotted strips and the folding mechanism for knotted strips.

3. The knotted belt directional conveying mechanism according to claim 2, characterized in that, The folded ribbon conveying mechanism includes a first lifting mechanism and a first clamping mechanism. The first lifting mechanism is mounted on the support frame. The first clamping mechanism includes a first pneumatic finger cylinder. A first gripper is fixedly mounted on each of the two fingers of the first pneumatic finger cylinder. The first lifting mechanism is used to drive the first clamping mechanism to move up and down and to position it. A folded ribbon accommodating space is provided between the two first grippers.

4. The knotted belt directional conveying mechanism according to claim 3, characterized in that, in A horizontal push plate capable of reciprocating is provided on the upper rear side of the two first grippers, the horizontal push plate being used to push the folded knotted tape out from between the two first grippers.

5. The knotted belt directional conveying mechanism according to claim 4, characterized in that, A first air outlet is provided at the bottom of one of the first grippers, and the air outlet of the first air outlet is inclined toward the direction of the folded knotted strip held by the two first grippers.

6. The knotted belt directional conveying mechanism according to claim 4 or 5, characterized in that, The folding and bending mechanism includes a second cylinder, a first support plate, and an air outlet box. Two second air outlets are provided on the air outlet box. The high-pressure airflow ejected from the second air outlets is used to blow the folded end of the folded tape held by the first clamping mechanism toward the sewing station. An air source provides high-pressure airflow to the air outlet box. Two first limiting plates are fixedly provided on both sides of the air outlet box. One of the first limiting plates is fixedly connected to one side of the first support plate. The first support plate is fixedly connected to the movable end of the second cylinder.

7. The knotted belt directional conveying mechanism according to claim 6, characterized in that, The two second air outlets are flat, and the air outlet ends of the second air outlets are inclined downwards.

8. The knotted belt directional conveying mechanism according to claim 7, characterized in that, The lateral conveying mechanism for the knotting tape includes an unwinding mechanism, a lateral support frame, a knotting tape guide assembly, a cutting assembly, a clamping and pulling assembly, a second lifting mechanism, and an air blowing guide mechanism. The second lifting mechanism is mounted on the support frame, and the lateral support frame is horizontally mounted on the second lifting mechanism, which enables the lateral support frame to move up and down and be positioned. The unwinding mechanism is used to output the knotting tape. The knotting tape guide assembly, the cutting assembly, and the clamping and pulling assembly are arranged sequentially from left to right on the lateral support frame. The knotting tape guide assembly is used to guide the movement of the knotting tape. The cutting assembly is used to cut the knotting tape. The clamping and pulling assembly is used to clamp and pull the free end of the knotting tape. A knotting tape folding and top pressure space is preset between the cutting assembly and the clamping and pulling assembly. The air blowing guide mechanism includes two air blowing pipes, the air outlets of which are located above and below the free end of the knotting tape extending from the knotting tape guide assembly, respectively. The air outlets of the two air blowing pipes blow high-pressure airflow toward the clamping and pulling assembly.

9. The knotted belt directional conveying mechanism according to claim 8, characterized in that, The knotting folding mechanism includes a third lifting mechanism and a folding top pressure plate. The third lifting mechanism is mounted on the support frame, and the folding top pressure plate is vertically mounted on the third lifting mechanism. The third lifting mechanism is used to drive the folding top pressure plate to move up and down reciprocally. During the downward movement of the folding top pressure plate, it can realize the downward folding of the knotting strip that spans the knotting folding top pressure space.

10. A material bag knot sewing mechanism, characterized in that, The sewing mechanism includes the knot-directing conveying mechanism according to claim 9, and further includes an electric sewing machine, a material bag fabric conveying mechanism, and a conveying support plate. The sewing area of ​​the electric sewing machine is the sewing station, and the material bag fabric conveying mechanism is used to convey one side of the material bag fabric on the conveying support plate to the sewing station.

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