Ultrasonic welding device for pure cotton spunlace non-woven fabric bag

Abstract

The invention discloses an ultrasonic welding device for a pure cotton spunlace non-woven fabric bag, and relates to the technical field of ultrasonic welding, the ultrasonic welding device comprises a mounting frame, a connecting frame is arranged on the outer surface of the mounting frame, an ultrasonic generator is arranged on the inner wall of the connecting frame, and a winding assembly is arranged between the opposite inner walls of the mounting frame; according to the ultrasonic welding device for the pure cotton spunlace non-woven fabric bag, in order to prevent the situation that the welded non-woven fabric bag is not completely and firmly welded, the interior of the cloth bag is expanded through the multiple suction cups, then the interior of the cloth bag is expanded through the two expansion blocks, and the strength of the non-woven fabric bag is detected through an ultrasonic detector; the problem that in the prior art, ultrasonic detection equipment for the pure cotton spunlace non-woven fabric bag cannot detect the welding strength of the cloth bag, and practicability is reduced is solved.

Description

Technical Field

[0001] The invention relates to the technical field of ultrasonic welding, in particular to an ultrasonic welding device for a pure cotton spunlace non-woven bag. Background Art

[0002] The ultrasonic welding device for pure cotton spunlace non-woven bags is a device used to weld non-woven materials through ultrasonic technology. It mainly uses high-frequency oscillation to transmit sound waves from the welding head to the welding surface of the workpiece, instantly causing friction between the molecules of the workpiece to reach the melting point of the material, thereby completing the rapid dissolution of the solid material and neatly welding the non-woven fabric.

[0003] Existing, when pure cotton spunlace non-woven bags are welded using ultrasonic welding devices, when the thickness and density of the spunlace non-woven fabric are uneven, it will cause the non-waterproof fabric to be difficult to apply sufficient pressure in certain areas when using ultrasonic welding. The applied pressure is not properly adjusted, and the materials cannot be effectively combined together, resulting in insufficient strength at the weld, which in turn makes the non-waterproof bag appear to be welded loosely. Most of the existing pure cotton spunlace non-woven bags are simply checked for leaks after welding, and the strength of the welding of the non-waterproof bag cannot be detected, thereby reducing the practicality of the pure cotton spunlace non-woven bag ultrasonic welding device.

[0004] Therefore, we propose an ultrasonic welding device for pure cotton spunlace non-woven bags to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide an ultrasonic welding device for pure cotton spunlace non-woven bags to solve the problem that the ultrasonic detection equipment for pure cotton spunlace non-woven bags proposed in the above background technology cannot detect the welding strength of the bags, which reduces the practicality.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an ultrasonic welding device for a pure cotton spunlace non-woven bag, comprising a mounting frame, a connecting frame is arranged on the outer surface of the mounting frame, an ultrasonic generator is arranged on the inner wall of the connecting frame, a winding assembly is arranged between the opposite inner walls of the mounting frame, a detection assembly is arranged on the inner bottom surface of the mounting frame, and the detection assembly comprises two mounting plates, a stepping motor is fixedly mounted on the outer surface of one of the mounting plates by screws, the output shaft of the stepping motor is fixedly connected to a rotating shaft, a mounting tube is fixedly sleeved on the outer surface of the rotating shaft, a pressure-resistant plate is fixed at one end of the mounting tube, four auxiliary blocks are fixed on the outer surface of the pressure-resistant plate, two adjacent auxiliary blocks form a group, a connecting shaft is fixed between the outer surfaces of each group of auxiliary blocks, a torsion spring is arranged on the outer surfaces of the two connecting shafts, an expansion block is rotatably sleeved on the outer surfaces of the two connecting shafts, a bidirectional hydraulic rod is arranged at the center position of the outer surface of the pressure-resistant plate near the edges on both sides, sliders are fixedly connected at both ends of the two bidirectional hydraulic rods, a pressure sensor is arranged at the other end of the mounting tube, and an ultrasonic detector is arranged near the center of the outer surface of the pressure-resistant plate.

[0007] Preferably, the outer surface of the pressure-resistant plate is provided with sliding grooves near the edges on both sides, the outer surface of the mounting tube is fixedly installed with a first air pump by screws, the output end of the first air pump is fixedly connected to a drainage pipe, one end of the mounting tube is fixedly connected to an air outlet pipe, and an electromagnetic valve is arranged on the outer surface of the air outlet pipe.

[0008] Preferably, one end of the rotating shaft movably passes through the outside of another mounting plate, the two ends of the two torsion springs are respectively in contact with the outer surfaces of the two expansion blocks, the four sliders are grouped into two adjacent sliders, the outer surface of each group of sliders is respectively slidably connected to the inside of two slide grooves, and one end of the air outlet pipe passes through the outside of the pressure-resistant plate.

[0009] Preferably, a U-shaped frame is fixed to the bottom of the mounting frame, a second cylinder is arranged on the inner bottom surface of the U-shaped frame, the top end of the second cylinder is movable through the interior of the mounting frame, a lifting plate is fixed to the top end of the second cylinder, and the bottoms of the two mounting plates are fixedly connected to the top of the lifting plate.

[0010] Preferably, the winding assembly includes a winding rack, the relative outer surfaces of the winding rack are respectively fixedly connected to the relative inner walls of the mounting rack, a winding rod is movably embedded between the relative inner walls of the winding rack, a double-layer non-woven fabric is provided on the outer surface of the winding rod, a clamping rod is fixed between the relative inner walls of the mounting rack near the top, one end of the double-layer non-woven fabric is movably penetrated to the outside of the winding rack and the clamping rod in turn, a fixing rack is fixedly installed between the outer surfaces of the two clamping rods, a mounting block is fixed to the outer surface of the fixing rack, a driving motor is provided on the outer surface of the mounting block, a flattening roller is fixedly connected to the output end of the driving motor, and two ends of the flattening roller are respectively movably penetrated to the opposite outer sides of the fixing rack.

[0011] Preferably, a welding assembly is arranged near the center between the relative inner walls of the mounting frame, and the welding assembly includes two auxiliary frames, and the outer surfaces of one side of the two auxiliary frames are respectively fixedly connected to the relative inner walls of the mounting frame, and a forward and reverse motor is fixedly installed on the outer surface of the other side of one of the auxiliary frames by screws, and the output shaft of the forward and reverse motor is fixedly connected to a bidirectional screw rod, and a limiting tube is fixedly installed between the relative inner walls of the other auxiliary frame, and the outer surface of the bidirectional screw rod is threadedly connected to the first moving rod.

[0012] Preferably, the outer surface of the bidirectional screw rod is threadedly connected to the second moving rod, and the two ends of the limiting tube respectively penetrate into the outside of the first moving rod and the second moving rod in sequence, and the outer surfaces of the first moving rod and the second moving rod are both provided with a welding head body, and the outer surface of the second moving rod is fixedly installed with a reinforcement frame, and the inner wall of the reinforcement frame is provided with an electric push rod, and a blade is fixedly installed at one end of the electric push rod, and the outer surface of the blade is slidably connected to the inner wall of the second moving rod.

[0013] Preferably, a separation component is arranged between the relative inner walls of the mounting frame near the bottom, and the separation component includes a supporting frame, and the opposite outer surfaces of the supporting frame are respectively fixedly connected to the relative inner walls of the mounting frame, and two telescopic rods are fixedly installed on the relative inner walls of the supporting frame.

[0014] Preferably, every two adjacent ones of the four telescopic rods form a group, a hollow block is fixed between one ends of the telescopic rods in each group, a first cylinder is arranged near the center of the relative inner walls of the support frame, one end of the two first cylinders is respectively fixedly connected to the outer surface of one side of the two hollow blocks, a plurality of suction cups are arranged on the outer surface of the two hollow blocks, and a connecting pipe is fixedly connected to the outer surface of the other side of the two hollow blocks near one side edge.

[0015] Preferably, valves are provided on the outer surfaces of the two connecting pipes, and a second air pump is provided near the center of the outer surface of the other side of the two hollow blocks. The output ends of the two second air pumps are fixedly connected to suction pipes, and one end of the two suction pipes respectively penetrates into the interior of the two hollow blocks.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In order to prevent the non-woven bags from being not completely welded after welding, the inside of the bag is stretched open by multiple suction cups, and then the inside of the bag is expanded by two expansion blocks. The strength of the non-woven bag is tested by an ultrasonic detector, so that unqualified bags can be separated out, which solves the problem that the ultrasonic detection equipment of pure cotton spunlace non-woven bags in the prior art cannot detect the welding strength of the bag, reducing the practicality.

[0018] 2. When it is necessary to use an ultrasonic welding device to weld pure cotton spunlace non-woven bags, pass one end of the double-layer non-woven fabric through the long groove at the bottom of the winding frame, and continue to pull the double-layer non-woven fabric downward. When it moves to the outer surface of the flattening roller, start the drive motor to drive the flattening roller to rotate, so that the double-layer non-woven fabric moves downward under the action of friction, thereby limiting the position of the double-layer non-woven fabric and flattening it while driving it to move downward, flattening the double-layer non-woven fabric, thereby preventing the bag from wrinkling during the welding process.

[0019] 3. When the bottom end of the double-layer non-woven fabric moves to a certain distance from the bottom of the clamp rod, the welding head body is heated by the ultrasonic generator to weld the double-layer non-woven fabric, and then the welded cloth bag is cut by the blade, thereby completing the separation of the welded cloth bag, so that the welded cloth bag continues to move downward under the action of its own gravity, which is convenient for separating the welded cloth bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front perspective view of an ultrasonic welding device for a pure cotton spunlace non-woven bag of the present invention;

[0021] Figure 2 It is a partial three-dimensional diagram of a mounting frame of an ultrasonic welding device for a pure cotton spunlace non-woven bag of the present invention;

[0022] Figure 3 It is a three-dimensional diagram of the connecting frame part of an ultrasonic welding device for a pure cotton spunlace non-woven bag of the present invention;

[0023] Figure 4 It is a partial cross-sectional perspective view of a winding component of an ultrasonic welding device for a pure cotton spunlace non-woven bag of the present invention;

[0024] Figure 5It is a three-dimensional diagram of the welding component part of an ultrasonic welding device for a pure cotton spunlace non-woven bag of the present invention;

[0025] Figure 6 It is a partially cutaway stereoscopic view of a first moving rod of an ultrasonic welding device for a pure cotton spunlace non-woven bag of the present invention;

[0026] Figure 7 It is a three-dimensional diagram of the separated components of an ultrasonic welding device for a pure cotton spunlace non-woven bag of the present invention;

[0027] Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle;

[0028] Fig. 9 It is a three-dimensional diagram of the lifting plate part of an ultrasonic welding device for a pure cotton spunlace non-woven bag of the present invention;

[0029] Fig.10 It is a partial three-dimensional diagram of a detection component of an ultrasonic welding device for a pure cotton spunlace non-woven bag of the present invention;

[0030] Fig.11 This is a partially cutaway stereoscopic view of an installation pipe of an ultrasonic welding device for a pure cotton spunlace non-woven bag of the present invention.

[0031] In the figure:

[0032] 1. Mounting frame; 2. Connecting frame; 3. Ultrasonic generator; 4. Reeling assembly; 401. Reeling frame; 402. Reeling rod; 403. Double-layer non-woven fabric; 404. Clamping rod; 405. Fixed frame; 406. Mounting block; 407. Driving motor; 408. Flattening roller; 5. Welding assembly; 501. Auxiliary frame; 502. Forward and reverse motor; 503. Bidirectional screw rod; 504. Position limiting tube; 505. First moving rod; 506. Second moving rod; 507. Reinforcement frame; 508. Electric push rod; 509. Blade; 510. Welding head body; 6. Separation assembly; 601. Carrying frame; 602. Telescopic rod; 603. First cylinder; 60 4. Hollow block; 605. Suction cup; 606. Connecting pipe; 607. Valve; 608. Second air pump; 609. Suction pipe; 7. Detection assembly; 701. Mounting plate; 702. Stepper motor; 703. Rotating shaft; 704. Mounting pipe; 705. Pressure plate; 706. Auxiliary block; 707. Connecting shaft; 708. Torsion spring; 709. Expansion block; 710. Slide; 711. Bidirectional hydraulic rod; 712. Sliding block; 713. First air pump; 714. Drainage pipe; 715. Pressure sensor; 716. Exhaust pipe; 717. Solenoid valve; 718. Ultrasonic detector; 8. U-shaped frame; 9. Second cylinder; 10. Lifting plate. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figure 1-11The present invention provides a technical solution: an ultrasonic welding device for a pure cotton spunlace non-woven bag, comprising a mounting frame 1, a connecting frame 2 is arranged on the outer surface of the mounting frame 1, an ultrasonic generator 3 is arranged on the inner wall of the connecting frame 2, a winding assembly 4 is arranged between the opposite inner walls of the mounting frame 1, a detection assembly 7 is arranged on the inner bottom surface of the mounting frame 1, and the detection assembly 7 comprises two mounting plates 701, a stepping motor 702 is fixedly installed on the outer surface of one of the mounting plates 701 by screws, a rotating shaft 703 is fixedly connected to the output shaft of the stepping motor 702, a mounting tube 704 is fixedly sleeved on the outer surface of the rotating shaft 703, a pressure-resistant plate 705 is fixed on one end of the mounting tube 704, four auxiliary blocks 706 are fixed on the outer surface of the pressure-resistant plate 705, two adjacent auxiliary blocks 706 form a group, a connecting shaft 707 is fixed between the outer surfaces of each group of auxiliary blocks 706, a torsion spring 708 is arranged on the outer surfaces of the two connecting shafts 707, an expansion block 709 is rotatably sleeved on the outer surfaces of the pressure-resistant plate 705 A bidirectional hydraulic rod 711 is arranged at the center position near the edges of both sides, and both ends of the two bidirectional hydraulic rods 711 are fixedly connected with a slider 712, a pressure sensor 715 is arranged at the other end of the mounting tube 704, an ultrasonic detector 718 is arranged near the center of the outer surface of the pressure-resistant plate 705, and a slide groove 710 is arranged near the edges of both sides of the outer surface of the pressure-resistant plate 705, and a first air pump 713 is fixedly installed on the outer surface of the mounting tube 704 by screws, and the output end of the first air pump 713 is fixedly connected with a drainage Tube 714, one end of the mounting tube 704 is fixedly connected to an air outlet pipe 716, an electromagnetic valve 717 is arranged on the outer surface of the air outlet pipe 716, one end of the rotating shaft 703 movably passes through to the outside of another mounting plate 701, the two ends of the two torsion springs 708 are respectively in contact with the outer surfaces of the two expansion blocks 709, the four sliders 712 are grouped into two adjacent ones, the outer surfaces of each group of sliders 712 are respectively slidably connected with the inside of the two slide grooves 710, and one end of the air outlet pipe 716 passes through to the outside of the pressure-resistant plate 705.A separation assembly 6 is arranged near the bottom between the opposite inner walls of the mounting frame 1. The separation assembly 6 includes a carrier frame 601. The opposite outer surfaces of the carrier frame 601 are fixedly connected to the opposite inner walls of the mounting frame 1 respectively. Two telescopic rods 602 are fixedly installed on the opposite inner walls of the carrier frame 601. Each adjacent two of the four telescopic rods 602 form a group. A hollow block 604 is fixed between one end of each group of telescopic rods 602. A first cylinder 603 is arranged near the center of the opposite inner wall of the carrier frame 601. One end of the two first cylinders 603 is respectively connected to two The outer surface of one side of the hollow block 604 is fixedly connected, and multiple suction cups 605 are arranged on the outer surfaces of the two hollow blocks 604. The outer surfaces of the other sides of the two hollow blocks 604 are fixedly connected with connecting pipes 606 near one edge, and valves 607 are arranged on the outer surfaces of the two connecting pipes 606. The outer surfaces of the other sides of the two hollow blocks 604 are arranged with second air pumps 608 near the center, and the output ends of the two second air pumps 608 are fixedly connected with suction pipes 609, and one end of the two suction pipes 609 respectively penetrates into the interior of the two hollow blocks 604.

[0035] In this embodiment, when the welded non-woven bag continues to move downward, in order to prevent the non-woven bag from not being completely welded firmly, when the non-woven bag moves to the outer surface of the two hollow blocks 604, the two first cylinders 603 are started to extend, driving the two hollow blocks 604 to move toward each other, thereby driving the two sets of corresponding suction cups 605 to move toward each other, and then clamping the non-woven bag, so that the outer surfaces of the two sets of suction cups 605 are respectively in contact with the opposite outer surfaces of the non-woven bag, and then the two second air pumps 608 are started to extract gas into the interior of the two hollow blocks 604 respectively, wherein the second air pump 608 reciprocates in the sealing cylinder of the pump through the piston, when the piston moves downward, the gas in the sealing cylinder is drawn in, and when the piston moves upward, the gas The body is compressed and discharged through the exhaust port, so that the interior of the hollow block 604 is in a negative pressure state, and then the interior of the multiple suction cups 605 is in a negative pressure state, and then the two sides of the non-woven bag are tightly adsorbed, and then the two first cylinders 603 are started again to shorten them, and drive the two hollow blocks 604 to move in directions away from each other, and then the welded non-woven bag is opened. At this time, the stepper motor 702 is started to drive the rotating shaft 703 to rotate, and then drive the mounting tube 704 to rotate until the mounting tube 704 rotates to a position perpendicular to the lifting plate 10, and then the second cylinder 9 is started to extend it, drive the lifting plate 10 to move upward, and then drive the two mounting plates 701 to move upward, so that the mounting tube 704 moves upward, Finally, the two expansion blocks 709 are driven to move upward and inserted into the non-woven bag, and then the two valves 607 are opened, so that the internal pressure of the two hollow blocks 604 is balanced with the external atmospheric pressure, so that the outer surface of the non-woven bag is separated from the outer surface of the two groups of suction cups 605, and then the two bidirectional hydraulic rods 711 are started to shorten it. The bidirectional hydraulic rod 711 is mainly based on hydraulic technology, which uses liquid pressure to generate mechanical movement, so that the two sliders 712 move toward each other. The stability of the sliders 712 is guaranteed by the action of the two slide grooves 710. The movement of the two groups of sliders 712 drives the two expansion blocks 709 to rotate in the direction away from each other, so that the two torsion springs 708 are tightened, so that the two expansion blocks 7 09 The non-woven bag is further expanded to detect the tightness of the welding of the non-woven bag. At the same time, the rotation of the two expansion blocks 709 makes the ultrasonic detector 718 connected to the inner wall of the non-woven bag, thereby detecting the strength of the welding of the non-woven bag. The ultrasonic detector 718 emits high-frequency sound waves, which are transmitted into the material of the bag through the probe. When the ultrasonic wave propagates inside the non-woven bag, it will encounter defects in the material. These factors will affect the propagation speed and reflection degree of the sound wave. The probe receives the reflected sound wave returned from the inside of the non-woven bag material. The detection instrument analyzes the received echo signal and judges the internal strength and quality of the material through parameters such as waveform, frequency, and amplitude. When the ultrasonic detector 718 detects that the strength of the non-woven bag is not enough,The signal is transmitted to the external control system, and the staff can find that the non-woven bag is not welded firmly. When the strength test of the welded non-woven bag is completed, the second cylinder 9 is started again to shorten it, driving the two expansion blocks 709 to move downward. When the two expansion blocks 709 move to the bottom of the carrier 601, the stepper motor 702 is started again to drive the mounting tube 704 to rotate to a position parallel to the lifting plate 10, so that the two expansion blocks 709 rotate to the outside of the mounting frame 1, and then the two bidirectional hydraulic rods 711 are started again to extend it. The first air pump 713 is started, wherein the first air pump 713 uses the rotating impeller to generate centrifugal force to suck the gas into the pump and accelerate it. The high-speed rotating impeller pushes the gas outward to increase the kinetic energy and pressure of the gas, thereby realizing the gas transportation. The first air pump 713 drives the drainage tube 714 to transport the gas to the inside of the installation tube 704, thereby making the first air pump 713 The inside of the installation tube 704 is in a high-pressure state. When the pressure sensor 715 detects that the pressure inside the installation tube 704 reaches the required value, the pressure sensor 715 is a device for measuring gas or liquid pressure. It uses the strain measurement principle. When pressure acts on the sensitive element of the sensor, the element will deform, causing its resistance to change. By measuring the change in resistance, the pressure acting on the sensor can be inferred, and the solenoid valve 717 is opened, so that the gas in the installation tube 704 impacts outward under the action of the pressure difference, so that the non-woven bag sleeved on the surface of the two expansion blocks 709 moves outward under the pressure of the gas and separates from the two expansion blocks 709. At this time, the external collection device corresponding to the inspection result is placed at the position corresponding to the expansion block 709, that is, the inspection and collection of the welded non-woven bag is completed, and the welding strength of the non-woven bag can be detected while welding the non-woven bag, so that the unqualified bag is separated, which solves the problem that the ultrasonic inspection equipment of the pure cotton spunlace non-woven bag in the prior art cannot detect the welding strength of the bag and reduces the practicality.

[0036] Embodiment 2: Figure 1-6 and Fig. 9As shown, a U-shaped frame 8 is fixed at the bottom of the mounting frame 1, a second cylinder 9 is arranged on the inner bottom surface of the U-shaped frame 8, the top of the second cylinder 9 is movably penetrated into the interior of the mounting frame 1, a lifting plate 10 is fixed on the top of the second cylinder 9, the bottoms of the two mounting plates 701 are fixedly connected to the top of the lifting plate 10, the winding assembly 4 includes a winding frame 401, the relative outer surfaces of the winding frame 401 are respectively fixedly connected to the relative inner walls of the mounting frame 1, a winding rod 402 is movably embedded between the relative inner walls of the winding frame 401, and the outer surface of the winding rod 402 is provided with a double layer A clamping rod 404 is fixed between the relative inner walls of the non-woven fabric 403 and the mounting frame 1 near the top, one end of the double-layer non-woven fabric 403 is movable and penetrates to the outside of the winding frame 401 and the clamping rod 404 in turn, a fixing frame 405 is fixedly installed between the outer surfaces of the two clamping rods 404, a mounting block 406 is fixed to the outer surface of the fixing frame 405, a driving motor 407 is arranged on the outer surface of the mounting block 406, a flattening roller 408 is fixedly connected to the output end of the driving motor 407, and the two ends of the flattening roller 408 are respectively movable and penetrate to the opposite outer sides of the fixing frame 405, and the mounting frame 405 is fixedly installed. A welding assembly 5 is arranged near the center between the opposite inner walls of the mounting frame 1. The welding assembly 5 includes two auxiliary frames 501. The outer surfaces of one side of the two auxiliary frames 501 are respectively fixedly connected to the opposite inner walls of the mounting frame 1. A forward and reverse motor 502 is fixedly installed on the outer surface of the other side of one of the auxiliary frames 501 by screws. The output shaft of the forward and reverse motor 502 is fixedly connected to a bidirectional screw rod 503. A limiting tube 504 is fixedly installed between the opposite inner walls of the other auxiliary frame 501. The outer surface of the bidirectional screw rod 503 is threadedly connected to a first moving rod 505. The outer surface of the bidirectional screw rod 503 is threadedly connected to the second moving rod 506, and the two ends of the limiting tube 504 respectively penetrate into the outside of the first moving rod 505 and the second moving rod 506 in sequence. The outer surfaces of the first moving rod 505 and the second moving rod 506 are both provided with a welding head body 510, and the outer surface of the second moving rod 506 is fixedly installed with a reinforcement frame 507, and the inner wall of the reinforcement frame 507 is provided with an electric push rod 508, and one end of the electric push rod 508 is fixedly installed with a blade 509, and the outer surface of the blade 509 is slidably connected to the inner wall of the second moving rod 506.

[0037] In this embodiment, when it is necessary to use an ultrasonic welding device to weld the pure cotton spunlace non-woven bag, first, the double-layer non-woven fabric 403 is sleeved on the outer surface of the winding rod 402, and then one end of the double-layer non-woven fabric 403 is passed through the long row groove at the bottom of the winding frame 401, and the double-layer non-woven fabric 403 is continued to be pulled downward so that its outer surface is respectively embedded in the two limit grooves in the clamping rod 404, and when it moves to the outer surface of the flattening roller 408, the driving motor 407 is started to drive the flattening roller 408 to rotate, wherein the outer surface of the flattening roller 408 is close to the outer surface of the clamping rod 404, and when it rotates. , so that the double-layer non-woven fabric 403 moves downward under the action of friction, thereby limiting and flattening the double-layer non-woven fabric 403 while driving it to move downward. When the bottom end of the double-layer non-woven fabric 403 moves to a certain distance from the bottom of the clamping rod 404, the ultrasonic generator 3 is started through an external control system, wherein the ultrasonic generator 3 converts electrical energy into high-frequency sound waves, generates high-frequency electrical signals through an oscillation circuit, and then drives the piezoelectric ceramic element. When the high-frequency electrical signal is applied to the transducer, the piezoelectric material will deform and generate ultrasonic waves, which are transmitted to the welding head through the transducer. The surface of the main body 510, the two welding head main bodies 510 heat the two non-woven fabrics to a molten state by ultrasonic means, and then realize the fusion of the materials under the action of pressure, and then start the forward and reverse motors 502 through the external control system to drive the bidirectional screw rod 503 to rotate, and then drive the first moving rod 505 and the second moving rod 506 to move toward each other, wherein the limiting tube 504 plays a limiting role for the two, and the movement of the first moving rod 505 and the second moving rod 506 drives the two welding head main bodies 510 to move toward each other, so that the outer surface of the double-layer non-woven fabric 403 is clamped and welded. Next, when welding is completed, the electric push rod 508 is started through an external control system to extend it, driving the blade 509 to move forward along the strip groove on the surface of the second moving rod 506, thereby driving the blade 509 to move forward, thereby cutting the welded cloth bag, thereby completing the separation of the welded cloth bag. When the separation of the cloth bag is completed, the forward and reverse motor 502 is started again to drive the bidirectional screw rod 503 to rotate in the opposite direction, thereby making the first moving rod 505 and the second moving rod 506 move in opposite directions, so that the welded cloth bag continues to move downward under the action of its own gravity.

[0038] The use method and working principle of this device: when it is necessary to use an ultrasonic welding device to weld a pure cotton spunlace non-woven bag, first, the double-layer non-woven fabric 403 is sleeved on the outer surface of the winding rod 402, and then one end of the double-layer non-woven fabric 403 is passed through the long row groove at the bottom of the winding frame 401, and the double-layer non-woven fabric 403 is continued to be pulled downward so that its outer surface is respectively embedded in the two limiting grooves in the clamping rod 404, and when it moves to the outer surface of the flattening roller 408, the driving motor 407 is started to drive the flattening roller 408 to rotate, so that the double-layer non-woven fabric 403 moves downward under the action of friction, thereby limiting and flattening the double-layer non-woven fabric 403 while driving it to move downward. When the bottom end of the double-layer non-woven fabric 403 moves to a distance from the bottom of the clamping rod 404 When the distance is set, the ultrasonic generator 3 is started through the external control system, and the sound wave is transmitted to the surface of the welding head body 510 through the transducer. The two welding head bodies 510 heat the two non-woven fabrics to a molten state by ultrasonic means, and then realize the fusion of the materials under the action of pressure, and then the forward and reverse motors 502 are started through the external control system to drive the bidirectional screw rod 503 to rotate, and then drive the first moving rod 505 and the second moving rod 506 to move toward each other, and drive the two welding head bodies 510 to move toward each other, so that the outer surface of the double-layer non-woven fabric 403 is clamped and welded. When the welding is completed, the electric push rod 508 is started through the external control system to extend it, driving the blade 509 to move forward along the strip groove on the surface of the second moving rod 506. The first and second moving rods 505 and 506 move in opposite directions, so that the welded non-woven bag continues to move downward under the action of its own gravity. When the welded non-woven bag continues to move downward, in order to prevent the non-woven bag from being completely welded firmly, when the non-woven bag moves to the outer surface of the two hollow blocks 604, the two first cylinders 603 are started to extend, driving the two hollow blocks 604 to move toward each other, thereby driving the two sets of corresponding suction cups 605 to move toward each other, and then the two sets of corresponding suction cups 605 are moved toward each other. The non-woven bag is clamped so that the outer surfaces of the two groups of suction cups 605 are in contact with the opposite outer surfaces of the non-woven bag respectively, and then the two second air pumps 608 are started to extract gas into the interior of the two hollow blocks 604 respectively, so that the interior of the hollow block 604 is in a negative pressure state, and then the interior of the multiple suction cups 605 is in a negative pressure state, and then the two sides of the non-woven bag are tightly adsorbed, and then the two first cylinders 603 are started again to shorten them, and the two hollow blocks 604 are driven to move in directions away from each other, and then the welded non-woven bag is stretched open. At this time, the stepper motor 702 is started to drive the rotating shaft 703 to rotate, and then the mounting tube 704 is driven to rotate until the mounting tube 704 rotates to a position perpendicular to the lifting plate 10.Then, the second cylinder 9 is started to extend, driving the lifting plate 10 to move upward, thereby driving the two mounting plates 701 to move upward, thereby causing the mounting tube 704 to move upward, and finally driving the two expansion blocks 709 to move upward and insert into the non-woven bag, and then the two valves 607 are opened, so that the internal and external atmospheric pressures of the two hollow blocks 604 are balanced, thereby causing the outer surfaces of the non-woven bag to be separated from the outer surfaces of the two groups of suction cups 605, respectively, and then the two bidirectional hydraulic rods 711 are started to shorten, and the movement of the two groups of sliders 712 drives the two expansion blocks 709 to rotate in directions away from each other, thereby causing the two torsion springs 708 to contract, thereby causing the two expansion blocks 709 to continue to expand and open the non-woven bag. Thereby detecting the tightness of the non-woven bag welding, at the same time, the rotation of the two expansion blocks 709 makes the ultrasonic detector 718 connected with the inner wall of the non-woven bag, and then detecting the strength of the non-woven bag welding, when the ultrasonic detector 718 detects that the strength of the non-woven bag is not enough, it transmits the signal to the external control system, and the staff can find that the non-woven bag welding is not firm, when the strength test of the welded non-woven bag is completed, start the second cylinder 9 again to shorten it, drive the two expansion blocks 709 to move downward, when the two expansion blocks 709 move to the bottom of the carrier 601, start the stepper motor 702 again, drive the mounting tube 704 to rotate to a position parallel to the lifting plate 10, so that the two expansion blocks 709 rotate to the mounting The outer side of the frame 1 is then started again with the two bidirectional hydraulic rods 711 to extend them, and the two sets of sliders 712 are respectively driven to move away from each other, so that the two expansion blocks 709 are relatively rotated under the elastic force of the two torsion springs 708, and the expansion of the non-woven bag is completed. Then the first air pump 713 is started to drive the drainage tube 714 to transport gas to the inside of the installation tube 704, so that the inside of the installation tube 704 is in a high-pressure state. When the pressure sensor 715 detects that the pressure in the installation tube 704 reaches the required value, the solenoid valve 717 is opened, so that the gas in the installation tube 704 is impacted outwards under the action of the pressure difference, so that the non-woven bag sleeved on the surface of the two expansion blocks 709 is pressed forward under the pressure of the gas. The outer part moves outward and separates from the two expansion blocks 709. At this time, the external collection device corresponding to the inspection result is placed at the position corresponding to the expansion block 709, that is, the inspection and collection of the welded non-woven bags are completed, and the welding strength of the non-woven bags can be inspected while welding, so that unqualified bags can be separated. Among them, the external control system is electrically connected to the ultrasonic generator 3, the drive motor 407, the forward and reverse motor 502, the electric push rod 508, the welding head body 510, the first cylinder 603, the second air pump 608, the stepping motor 702, the bidirectional hydraulic rod 711, the first air pump 713, the pressure sensor 715, the solenoid valve 717, the ultrasonic detector 718 and the second cylinder 9.

[0039] The wiring diagram of the ultrasonic generator 3, the drive motor 407, the forward and reverse motor 502, the electric push rod 508, the welding head body 510, the first cylinder 603, the second air pump 608, the stepping motor 702, the bidirectional hydraulic rod 711, the first air pump 713, the pressure sensor 715, the solenoid valve 717, the ultrasonic detector 718 and the second cylinder 9 in the present invention belongs to the common knowledge in the art, and its working principle is a well-known technology. The model is selected according to the actual use. The control mode and wiring arrangement of the ultrasonic generator 3, the drive motor 407, the forward and reverse motor 502, the electric push rod 508, the welding head body 510, the first cylinder 603, the second air pump 608, the stepping motor 702, the bidirectional hydraulic rod 711, the first air pump 713, the pressure sensor 715, the solenoid valve 717, the ultrasonic detector 718 and the second cylinder 9 are no longer explained in detail.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultrasonic welding device for a pure cotton spunlace non-woven bag, comprising a mounting frame (1), a connecting frame (2) is arranged on the outer surface of the mounting frame (1), an ultrasonic generator (3) is arranged on the inner wall of the connecting frame (2), and a winding assembly (4) is arranged between opposite inner walls of the mounting frame (1); Features: The inner bottom surface of the mounting frame (1) is provided with a detection assembly (7), and the detection assembly (7) includes two mounting plates (701), and a stepper motor (702) is fixedly mounted on the outer surface of one of the mounting plates (701) by screws, and the output shaft of the stepper motor (702) is fixedly connected to a rotating shaft (703), and a mounting tube (704) is fixedly sleeved on the outer surface of the rotating shaft (703), and a pressure-resistant plate (705) is fixed at one end of the mounting tube (704), and four auxiliary blocks (706) are fixed on the outer surface of the pressure-resistant plate (705), and each adjacent two of the four auxiliary blocks (706) form a group, and each group of the auxiliary blocks (706) comprises a plurality of auxiliary blocks (706) and a plurality of auxiliary blocks (706). A connecting shaft (707) is fixed between the outer surfaces of the auxiliary blocks (706), a torsion spring (708) is arranged on the outer surfaces of the two connecting shafts (707), an expansion block (709) is rotatably sleeved on the outer surfaces of the two connecting shafts (707), a bidirectional hydraulic rod (711) is arranged at the center position near the edges on both sides of the outer surface of the pressure-resistant plate (705), both ends of the two bidirectional hydraulic rods (711) are fixedly connected with a slider (712), a pressure sensor (715) is arranged at the other end of the mounting tube (704), and an ultrasonic detector (718) is arranged near the center of the outer surface of the pressure-resistant plate (705).

2. The ultrasonic welding device for pure cotton spunlace nonwoven bags according to claim 1, characterized in that: The outer surface of the pressure-resistant plate (705) is provided with sliding grooves (710) near the edges on both sides, and the outer surface of the mounting tube (704) is fixedly installed with a first air pump (713) by screws, and the output end of the first air pump (713) is fixedly connected to a drainage tube (714), and one end of the mounting tube (704) is fixedly connected to an air outlet pipe (716), and an electromagnetic valve (717) is arranged on the outer surface of the air outlet pipe (716).

3. The ultrasonic welding device for pure cotton spunlace nonwoven bags according to claim 2, characterized in that: One end of the rotating shaft (703) is movably extended to the outside of another mounting plate (701), and the two ends of the two torsion springs (708) are respectively in contact with the outer surfaces of the two expansion blocks (709). The four sliders (712) are grouped into two adjacent sliders, and the outer surface of each group of sliders (712) is respectively slidably connected to the inside of two slide grooves (710), and one end of the air outlet pipe (716) is extended to the outside of the pressure-resistant plate (705).

4. The ultrasonic welding device for pure cotton spunlace nonwoven bags according to claim 3, characterized in that: A U-shaped frame (8) is fixed at the bottom of the mounting frame (1), a second cylinder (9) is arranged on the inner bottom surface of the U-shaped frame (8), the top end of the second cylinder (9) movably penetrates into the interior of the mounting frame (1), a lifting plate (10) is fixed at the top end of the second cylinder (9), and the bottoms of the two mounting plates (701) are fixedly connected to the top of the lifting plate (10).

5. The ultrasonic welding device for pure cotton spunlace nonwoven bags according to claim 4, characterized in that: The winding assembly (4) comprises a winding frame (401), the relative outer surfaces of the winding frame (401) are respectively fixedly connected to the relative inner walls of the mounting frame (1), a winding rod (402) is movably embedded between the relative inner walls of the winding frame (401), a double-layer non-woven fabric (403) is arranged on the outer surface of the winding rod (402), a clamping rod (404) is fixed between the relative inner walls of the mounting frame (1) near the top, and one end of the double-layer non-woven fabric (403) is movably penetrated in sequence. To the outside of the winding frame (401) and the clamping rod (404), a fixing frame (405) is fixedly installed between the outer surfaces of the two clamping rods (404), a mounting block (406) is fixed to the outer surface of the fixing frame (405), a driving motor (407) is arranged on the outer surface of the mounting block (406), and a flattening roller (408) is fixedly connected to the output end of the driving motor (407), and the two ends of the flattening roller (408) are respectively movable and penetrate to the opposite outer sides of the fixing frame (405).

6. The ultrasonic welding device for pure cotton spunlace nonwoven bags according to claim 5, characterized in that: A welding assembly (5) is arranged near the center between the opposite inner walls of the mounting frame (1), and the welding assembly (5) comprises two auxiliary frames (501), and the outer surfaces of one side of the two auxiliary frames (501) are respectively fixedly connected to the opposite inner walls of the mounting frame (1), and a forward and reverse motor (502) is fixedly installed on the outer surface of the other side of one of the auxiliary frames (501) by screws, and the output shaft of the forward and reverse motor (502) is fixedly connected to a bidirectional screw rod (503), and a limiting tube (504) is fixedly installed between the opposite inner walls of the other auxiliary frame (501), and the outer surface of the bidirectional screw rod (503) is threadedly connected to a first moving rod (505).

7. The ultrasonic welding device for pure cotton spunlace nonwoven bags according to claim 6, characterized in that: The outer surface of the bidirectional screw rod (503) is threadedly connected to the second moving rod (506), and the two ends of the limiting tube (504) respectively penetrate into the outside of the first moving rod (505) and the second moving rod (506) in sequence. The outer surfaces of the first moving rod (505) and the second moving rod (506) are both provided with a welding head body (510), and the outer surface of the second moving rod (506) is fixedly installed with a reinforcement frame (507), and the inner wall of the reinforcement frame (507) is provided with an electric push rod (508), and one end of the electric push rod (508) is fixedly installed with a blade (509), and the outer surface of the blade (509) is slidably connected to the inner wall of the second moving rod (506).

8. The ultrasonic welding device for pure cotton spunlace nonwoven bags according to claim 7, characterized in that: A separation component (6) is arranged between the relative inner walls of the mounting frame (1) near the bottom, and the separation component (6) comprises a bearing frame (601), the opposite outer surfaces of the bearing frame (601) are respectively fixedly connected to the relative inner walls of the mounting frame (1), and the relative inner walls of the bearing frame (601) are both fixedly mounted with two telescopic rods (602).

9. The ultrasonic welding device for pure cotton spunlace nonwoven bags according to claim 8, characterized in that: Each adjacent two of the four telescopic rods (602) form a group, and a hollow block (604) is fixed between one end of each group of telescopic rods (602). A first cylinder (603) is arranged near the center of the opposite inner wall of the support frame (601), and one end of the two first cylinders (603) is fixedly connected to the outer surface of one side of the two hollow blocks (604), and a plurality of suction cups (605) are arranged on the outer surface of the two hollow blocks (604). A connecting pipe (606) is fixedly connected to the outer surface of the other side of the two hollow blocks (604) near one side edge.

10. The ultrasonic welding device for pure cotton spunlace nonwoven bags according to claim 9, characterized in that: Valves (607) are provided on the outer surfaces of the two connecting pipes (606), and second air pumps (608) are provided near the center of the other outer surfaces of the two hollow blocks (604). The output ends of the two second air pumps (608) are fixedly connected to suction pipes (609), and one end of the two suction pipes (609) respectively penetrates into the interior of the two hollow blocks (604).

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