A gown sleeve welding method and welding apparatus

Abstract

The invention belongs to the technical field of welding of isolation clothes, and particularly relates to a sleeve welding method and a welding device for isolation clothes, a folding conveying mechanism, a rack, a cutting mechanism arranged on the rack, two groups of sleeve welding devices, a moving frame, a cloth conveying mechanism, a cutting mechanism, a cutting mechanism, a first circulating conveying line, a first welding mechanism and a second welding mechanism. The moving frame is movably arranged on the rack, and the moving frame is connected with a driving mechanism. The cloth conveying mechanism is arranged on the moving frame, and the cutting mechanism is arranged on the moving frame. The cutting mechanism is arranged on the moving frame and is used for cutting the cloth on the cloth conveying mechanism. The first circulating conveying line is arranged on the rack, a plurality of push plates are equidistantly arranged on the first circulating conveying line, the push plates are used for folding the sleeve cloth, a pushing mechanism is arranged on the rack, the first welding mechanism is arranged on the rack and is used for welding the sleeve on the cutting edge of the non-woven fabric, and the second welding mechanism is arranged on the rack and is used for welding the edge of the sleeve.

Description

Technical Field

[0001] The invention belongs to the field of isolation gown welding technology, and in particular relates to a welding method and welding equipment for isolation gown sleeves. Background Technology

[0002] Disposable isolation gowns are widely used in medical, nursing, and other fields; they are made by folding, cutting, and welding non-woven fabric. An isolation gown typically consists of a main body, sleeves, and bindings.

[0003] Due to the structural design of the isolation gown, the sleeves are made of different non-woven fabrics sewn together. Therefore, the current production process for disposable isolation gowns involves conveying a roll of non-woven fabric. During this process, pockets are welded to the bottom of the non-woven fabric, and a collar is cut out in the middle. The two sides of the non-woven fabric are then folded over to the top surface. After folding, slits are cut on both sides of the conveyed non-woven fabric using a rolling cut method. After cutting the slits, straps are welded to the edges of the folded sections. Finally, the non-woven fabric with the straps is cut into individual isolation gowns without sleeves, and the two sleeves are then manually sewn together at the edges of the slits.

[0004] Manually welding the sleeves of the isolation gowns onto the non-woven fabric is not only labor-intensive and inefficient, but also results in inconsistent welding dimensions and wrinkles throughout the gown, reducing the quality of the finished product. Summary of the Invention

[0005] The purpose of this invention is to provide a welding method and equipment for welding the sleeves of isolation gowns, which solves the problem that the sleeves of existing isolation gowns need to be welded manually, resulting in a large workload and low efficiency.

[0006] To achieve the above objectives, the invention provides a method for welding sleeves of isolation gowns, in which a non-woven fabric is continuously fed, and both sides of the non-woven fabric are folded towards the center; slits are intermittently cut at the folded positions on both sides of the non-woven fabric along the feeding direction of the non-woven fabric; sleeve fabric is provided on both sides of the non-woven fabric and fed vertically downwards; a notch is cut on the side of the sleeve fabric close to the non-woven fabric; the sleeve fabric moves towards the center of the non-woven fabric, so that the notch is engaged with the edge of the folded position of the non-woven fabric; One end of the pusher plate extends laterally into the cut and supports the upper and lower layers of fabric in the cut. The pusher plate moves synchronously with the nonwoven fabric and pushes the sleeve fabric to fold in half, so that the edge of one end of the sleeve fabric wraps around the outside of the cut. A welding mechanism welds the overlapping part of the sleeve fabric and the edge of the cut into one piece. After welding, the pusher plate separates from the sleeve fabric. Another welding mechanism welds the edge of the sleeve fabric, so that the sleeve fabric is welded to the nonwoven fabric and forms a sleeve.

[0007] A welding device for isolation gown sleeves is used to weld isolation gowns into shape. The isolation gown includes a main body and sleeves disposed on both sides of the main body. The welding device for isolation gown sleeves includes:

[0008] A folding conveyor mechanism is used to fold both sides of the nonwoven fabric to the upper surface of the nonwoven fabric body. The folding conveyor mechanism has an input end for the nonwoven fabric and an output end for the folded nonwoven fabric.

[0009] The frame is located at the output end of the folding conveyor mechanism;

[0010] A cutting mechanism, mounted on a frame, is used to intermittently cut slits along both edges of the folded nonwoven fabric; and,

[0011] Two sets of sleeve welding devices are symmetrically arranged on both sides of the frame for welding sleeves at the cuts on both sides of the non-woven fabric.

[0012] The sleeve welding device includes a movable frame, a fabric conveying mechanism, a cutting mechanism, a slitting mechanism, a first circulating conveyor line, a first welding mechanism, and a second welding mechanism. The movable frame is movably mounted on the machine frame and is connected to a drive mechanism for reciprocating movement. The fabric conveying mechanism is mounted on the movable frame and is used to vertically convey the fabric for forming the sleeve downwards. The cutting mechanism is mounted on the movable frame and is used to cut a notch on the side of the sleeve fabric close to the nonwoven fabric body. The slitting mechanism is mounted on the movable frame and is used to cut the fabric output by the fabric conveying mechanism. The first circulating conveyor line is mounted on the machine frame and has multiple push plates equidistantly arranged on it. The push plates are used to fold the hanging sleeve fabric in half. The machine frame has a pushing mechanism for pushing one end of the push plate into the notch in the nonwoven fabric. The first welding mechanism is mounted on the machine frame and is used to weld the sleeve to the edge of the notch in the nonwoven fabric. The second welding mechanism is mounted on the machine frame and is used to weld the edge of the sleeve.

[0013] Furthermore, the cutting mechanism and the slitting mechanism are rolling cutting mechanisms mounted on the movable frame. The rolling cutting mechanism includes two opposing rollers and a motor that drives the two rollers to rotate relative to each other. Cutting blades are mounted on the rollers.

[0014] Furthermore, the first circulating conveyor line includes a chain drive mechanism, a fixed plate, a moving plate, and a return spring; the chain drive mechanism is mounted on the frame, multiple fixed plates are equidistantly mounted on the chain drive mechanism, the moving plate is laterally movably connected to one side of the fixed plate, the outer end of the moving plate extends out of the fixed plate, and the return spring is connected to the moving plate to pull the moving plate to the outermost side; a push plate is mounted on the top side of the moving plate; the pushing mechanism is a track mounted on the frame, the side of the track near the moving plate is a guide rail surface, and one end of the guide rail surface has a guide surface for guiding the moving plate to abut against the track surface.

[0015] Furthermore, the sleeve welding device also includes a sleeve guiding mechanism, which is mounted on a movable frame and located at the bottom of the cutting mechanism; the sleeve guiding mechanism includes two sets of vertically arranged transmission belt mechanisms, each consisting of two sets of front-to-back transmission belts, with a clamping and conveying position formed between the two sets of transmission belts for clamping the fabric cut by the cutting mechanism.

[0016] Furthermore, the sleeve welding device also includes a cuff welding mechanism for welding an elastic sleeve at the cuff of the sleeve; the cuff welding mechanism includes a sleeve conveying mechanism, a clamping mechanism, a folding mechanism, a transfer mechanism, a second circulating conveyor line, a support plate, and a third welding mechanism; the sleeve conveying mechanism includes a square sleeve and a support roller that supports the square sleeve, as well as a shearing mechanism located at the front end of the square sleeve.

[0017] The clamping mechanism is located at one end of the sleeve conveying mechanism and is used to clamp the tight sleeve fitted on the square sleeve. The clamping mechanism includes four sets of clamping members arranged diagonally in a rectangle and a moving assembly. The clamping members are located on the moving assembly and move with the moving assembly.

[0018] The folding mechanism is located on one side of the clamping mechanism, including a translation component and two support rods mounted on the translation component. The free ends of the two support rods are provided with friction parts.

[0019] The second circulating conveyor line is mounted on the frame and includes a conveyor belt. The conveyor belt's transmission direction is consistent with that of the first circulating conveyor line. A support plate is mounted on the conveyor belt and always follows the conveyor belt horizontally.

[0020] The transfer mechanism is located on one side of the folding mechanism. The transfer mechanism includes a three-axis moving mechanism and a spreading mechanism on the three-axis moving mechanism, which is used to spread the elastic sleeve on the folding mechanism and rotate it onto the support plate; the third welding mechanism is located on the frame and is used to weld the elastic sleeve to the cuff of the sleeve.

[0021] Furthermore, the folding mechanism also includes an opening mechanism, which includes two moving parts that can move toward or in opposite directions, and each of the moving parts is connected to a support rod.

[0022] Furthermore, the clamping mechanism also includes a support base and two sets of clamping assemblies, which are arranged vertically on the support base. Each clamping assembly includes a connecting shaft, two clamping plates, and a cylinder. The connecting shaft is located on the support base, and the two clamping plates are rotatably connected to the connecting shaft. The cylinder is connected to the two clamping plates and is used to drive the clamping plates to clamp or open. Clamping portions extend from both sides of each clamping plate, and the two clamping portions that clamp each other form a clamping element.

[0023] Furthermore, the clamping mechanism also includes a bidirectional cylinder, and the connecting shafts of the two clamping components are equipped with connecting rods. Each connecting rod is pivotally connected to a connecting arm, and the two telescopic ends of the bidirectional cylinder are respectively connected to the corresponding connecting arms.

[0024] Furthermore, the second circulating conveyor line is longer than the first circulating conveyor line, and the second welding mechanism is located between the tail end of the first circulating conveyor line and the tail end of the second circulating conveyor line.

[0025] Furthermore, the first welding mechanism and the third welding mechanism are arranged opposite to each other, and two clamping conveyor belts are arranged vertically between the first welding mechanism and the third welding mechanism, forming a clamping conveying position between the two clamping conveyor belts, with one end of the clamping conveyor belt located on one side of the clamping assembly.

[0026] Furthermore, the frame is also equipped with support plates to support the flipped parts of the nonwoven fabric on both sides, so that the cuts on both sides of the nonwoven fabric open up and down.

[0027] The above-mentioned technical solutions in the isolation gown sleeve welding equipment provided in the embodiments of the invention have at least the following technical effects:

[0028] This isolation gown sleeve welding equipment uses a folding conveyor mechanism to transport a roll of non-woven fabric towards the machine frame. During the conveying process, the folding conveyor mechanism folds the two sides of the non-woven fabric to the upper surface of the non-woven fabric body. A cutting mechanism cuts slits on the folded edges of the non-woven fabric, and then a two-sleeve welding device welds the two sleeves to the edges of the slits. Specifically, the fabric conveying mechanism feeds the sleeve fabric downwards, and the cutting mechanism cuts a notch at the edge of the sleeve fabric. The driving mechanism drives the moving frame to move towards the non-woven fabric, so that the notch of the sleeve fabric is caught at the edge of the non-woven fabric. At the same time, the pushing mechanism pushes one end of a push plate into the notch of the non-woven fabric. The push plate is driven by the first circulating conveyor line and is conveyed synchronously with the non-woven fabric. During the conveying process, the push plate can fold the sleeve fabric in half, and the cutting mechanism cuts the sleeve fabric into individual sleeve fabric pieces. The folded sleeve fabric pieces are attached to the upper and lower surfaces of the push plate, so that the ends of the sleeve fabric pieces can wrap around the outside of the notch. The push plate carries the sleeve fabric pieces and the non-woven fabric body together to the first welding mechanism, which welds the edge of the sleeve fabric pieces to the outside of the notch edge. During the welding process, the push plate acts as a welding template, so that the upper and lower layers of the notch are isolated from each other. After the sleeve is welded to the cut edge, the first circulating conveyor line gradually transports the pusher plate to its initial position, separating the pusher plate from the sleeve. When the sleeve welded to the cut edge is transported to the second welding mechanism, the second welding mechanism completes the welding of the sleeve edge, forming a complete sleeve. Therefore, this isolation gown sleeve welding equipment can automatically weld sleeves onto isolation gowns, replacing manual operation, improving efficiency, and ensuring welding quality, thus improving overall quality. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A structural diagram of the isolation gown sleeve welding device provided in an embodiment of the invention.

[0031] Figure 2 This is a structural diagram showing the symmetrical arrangement of two sleeve welding devices formed by welding the isolation gown sleeves according to an embodiment of the invention.

[0032] Figure 3 A structural diagram of the sleeve welding device of the isolation gown sleeve welding equipment provided in the embodiments of the invention.

[0033] Figure 4 This is a structural diagram of the other side of the sleeve welding device of the isolation gown sleeve welding equipment provided in the embodiment of the invention.

[0034] Figure 5 This is a structural diagram of two circulating conveyor lines arranged opposite each other in the welding equipment for isolation gown sleeves provided in an embodiment of the invention.

[0035] Figure 6 A structural diagram of the first circulating conveyor line of the isolation gown sleeve welding equipment provided in the embodiments of the invention.

[0036] Figure 7 A structural diagram of the sleeve guiding mechanism of the isolation gown sleeve welding equipment provided in the embodiments of the invention.

[0037] Figure 8 A structural diagram of the cuff welding mechanism of the isolation gown sleeve welding device provided in the embodiment of the invention.

[0038] Figure 9 A structural diagram of the clamping mechanism portion of the isolation gown sleeve welding device provided in an embodiment of the invention.

[0039] Figure 10 A structural diagram of the clamping mechanism of the isolation gown sleeve welding device provided in the embodiment of the invention.

[0040] Figure 11 A structural diagram of the folding mechanism of the isolation gown sleeve welding device provided in the embodiment of the invention.

[0041] Figure 12 This is a schematic diagram of nonwoven fabric.

[0042] Figure 13 A diagram illustrating how nonwoven fabric sleeve material is inserted into the edge of a nonwoven fabric garment. Detailed Implementation

[0043] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain embodiments of the invention, and should not be construed as limiting the invention.

[0044] In the description of the embodiments of the invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] In the embodiments of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of the invention can be understood according to the specific circumstances.

[0047] In one embodiment of the invention of the welding method for the sleeves of the isolation gown, please refer to... Figure 12 and Figure 13The process involves continuously feeding a nonwoven fabric 1, with both sides of the nonwoven fabric 1 folded towards the center; intermittent cuts 1a are made at the folded positions on both sides of the nonwoven fabric 1 along the feeding direction; sleeve fabric 2 is provided on both sides of the nonwoven fabric and fed vertically downwards, with a notch 2a cut on the side of the sleeve fabric 2 closest to the nonwoven fabric 1; the sleeve fabric 2 moves towards the center of the nonwoven fabric 1, so that the notch 2a is caught at the edge of the folded position of the nonwoven fabric 1; a pusher plate 510 extends laterally into the cut 1a, pushing... Plate 510 supports the upper and lower layers of fabric at the cut 1a. Simultaneously, push plate 510 moves synchronously with the non-woven fabric 1. During this movement, push plate 510 can fold the sleeve fabric 1 in half, allowing one edge of the sleeve fabric 1 to wrap around the outside of the cut 1a. A welding mechanism welds the overlapping portion of the sleeve fabric 2 to the edge of the cut 1a, forming a single unit. After welding, push plate 510 separates from the sleeve fabric 2. Another welding mechanism then welds the edge of the sleeve fabric 2, attaching it to the non-woven fabric 2 to form the sleeve. Finally, the non-woven fabric is cut into individual isolation gowns. This achieves automated welding of the sleeves of the isolation gowns, improving efficiency and quality.

[0048] To implement the above method, the present invention also provides a welding device for isolation gown sleeves. In one embodiment of the isolation gown sleeve welding device, please refer to... Figure 1 , Figure 2 and Figure 12 , Figure 13 This is a welding equipment for isolation gown sleeves, used for welding isolation gowns into shape, enabling automated production of isolation gowns, improving efficiency and the quality of the finished product. The isolation gown consists of a main body and sleeves located on both sides of the main body.

[0049] Please refer to Figure 1 The isolation gown sleeve welding equipment in this embodiment includes: a folding conveyor mechanism 20, a frame 40, a cutting mechanism 30, and a sleeve welding device 10.

[0050] Reference Figure 1 and Figure 11 , Figure 12 The folding conveyor mechanism 20 is used to fold the nonwoven fabric 1 along both sides to the upper surface of the nonwoven fabric 1 body. The folding conveyor mechanism 20 has an input end 21 for the nonwoven fabric and an output end 22 for the folded nonwoven fabric. The folding conveyor mechanism 20 includes a mounting frame, a traction roller shaft mounted on the mounting frame, and folding plates mounted on both sides of the mounting frame. After the nonwoven fabric passes through the folding plates, the edges of the nonwoven fabric can be folded. Since folding or turning the fabric during the conveying process is a well-known technique in the art, the structure of the folding plates will not be described in detail in this embodiment. The frame 40 is located at the output end 22 of the folding conveyor mechanism 20.

[0051] A cutting mechanism 30 is mounted on a frame 40 and is used to intermittently cut slits 1a on both sides of the folded nonwoven fabric 1. Specifically, during the nonwoven fabric conveying process, the cutting mechanism 30 cuts slits on the edges of the nonwoven fabric. The cutting mechanism 30 is a rolling cutting device, which includes two rollers and a cutter mounted on the rollers. By rolling the rollers, the cutter rolls and cuts slits 1a on the edges of the nonwoven fabric.

[0052] Two sets of sleeve welding devices 10 are symmetrically arranged on both sides of the frame 40, and are used to weld the sleeves to the cuts 1a on both sides of the nonwoven fabric 1. Specifically:

[0053] Please refer to Figures 2-4 The sleeve welding device 10 includes a movable frame 100, a fabric conveying mechanism 200, a cutting mechanism 300, a cutting mechanism 400, a first circulating conveying line 500, a first welding mechanism 600, and a second welding mechanism 700.

[0054] The movable frame 100 is movably mounted on the frame 40. Specifically, a slide rail is provided at the top of the movable frame 100, which is connected to the frame 40. The movable frame 100 is also connected to a drive mechanism 110, which drives the movable frame 100 to move back and forth. The drive mechanism 110 can be an electric lead screw mechanism, a cylinder, or a crank-connecting rod mechanism, or other linear drive mechanisms.

[0055] The fabric conveying mechanism 200 is mounted on the movable frame 100 and is used to vertically convey the fabric for forming the sleeve downwards. The fabric conveying mechanism 200 includes a support shaft 201, which is located at the upper end of the movable frame 100. The entire roll of fabric for the sleeve can be placed on the support shaft 201, so the fabric can be conveyed downwards by rotating the support shaft 201.

[0056] Reference Figure 7 The cutting mechanism 300 is mounted on the movable frame 100 and is used to cut a notch 2a on the side of the sleeve fabric near the main body of the nonwoven fabric 1. Specifically, after the fabric conveying mechanism 200 conveys the fabric downwards for a certain length, the cutting mechanism 300 cuts the notch 2a at the edge of the fabric. Specifically, the cutting mechanism 300 is a roller cutting mechanism mounted on the movable frame 100. The roller cutting mechanism includes two opposing rollers and a motor that drives the two rollers to rotate relative to each other. Cutting blades are mounted on the rollers.

[0057] Reference Figure 7 The cutting mechanism 400 is mounted on the movable frame 100 and is used to cut the fabric output downward by the fabric conveying mechanism 200. Specifically, the cutting mechanism is a rolling cutting mechanism mounted on the movable frame 100, which cuts the sleeve fabric 2 by rolling cutting.

[0058] Please refer to Figures 3-6A first circulating conveyor line 500 is mounted on the frame 40. Multiple push plates 510 are equidistantly arranged on the first circulating conveyor line 500. The push plates 510 are used to fold the drooping sleeve fabric 2. Specifically, after the fabric droops, the first circulating conveyor line 500 drives the push plates 510 to move horizontally. The moving push plates 510 then come into contact with the drooping fabric, folding the fabric as the push plates continue to move horizontally. A pushing mechanism 520 is provided on the frame 40. The pushing mechanism 520 is used to push one end of the push plates 510 horizontally towards the nonwoven fabric 1 and extend it into the cut 1a of the nonwoven fabric 1. A first welding mechanism 600 is mounted on the frame 40 and is used to weld the sleeve to the edge of the cut 1a of the nonwoven fabric. A second welding mechanism 700 is mounted on the frame 40 and completes the welding of the sleeve edge, thus forming a complete sleeve.

[0059] In this embodiment, the sleeve welding equipment for isolation gowns uses a folding conveyor mechanism 20 to transport a roll of nonwoven fabric towards the frame 40. During the transport process, the folding conveyor mechanism 20 folds the two side edges of the nonwoven fabric to the upper surface of the nonwoven fabric body. The cutting mechanism 30 cuts slits 1a at the edges of the folded nonwoven fabric, and then the two sleeve welding device 10 welds the two sleeves to the edges of the slits 1a. Specifically, the fabric conveying mechanism 200 conveys the sleeve fabric 2 downwards, and the cutting mechanism 300 cuts a notch 2a at the edge of the sleeve fabric. The driving mechanism 110 drives the moving frame 100 to move towards the nonwoven fabric, so that the notch 2a of the sleeve fabric 2 is caught at the edge of the nonwoven fabric 1. At the same time, the pushing mechanism 520 pushes one end of a push plate 510 into the notch 1a of the nonwoven fabric. Under the drive of the first circulating conveyor line 500, the push plate 510 is conveyed synchronously with the conveying of the nonwoven fabric 1. During the conveying process, the push plate 510 can... The sleeve fabric 1 is folded in half and cut into individual sleeve pieces by the cutting mechanism 400. The folded sleeve pieces are then attached to the upper and lower surfaces of the push plate 510, allowing the ends of the sleeve fabric to wrap around the outside of the cut 1a. The push plate 510, along with the non-woven fabric body, is conveyed to the first welding mechanism 600, where the edge of the sleeve fabric 2 is welded to the outside of the cut 1a edge. During welding, the push plate 510 acts as a welding template, ensuring that the upper and lower layers of the cut 1a are isolated from each other. After the sleeve is welded to the cut 1a edge, the first circulating conveyor line 500 gradually conveys the push plate 510 back to its initial position, separating it from the sleeve. When the sleeve welded to the cut 1a edge is conveyed to the second welding mechanism 700, the second welding mechanism completes the welding of the sleeve edge, forming a complete sleeve. Therefore, this isolation gown sleeve welding equipment can automatically weld sleeves onto isolation gowns, replacing manual operation, improving efficiency, and ensuring welding quality, thus enhancing overall quality.

[0060] Furthermore, refer to Figure 5 and Figure 6 The first circulating conveyor line 500 includes a chain drive mechanism 530, a fixed plate 540, a movable plate 550, and a return spring. The chain drive mechanism 530 is mounted on the frame 40. Multiple fixed plates 540 are equidistantly arranged on the chain of the chain drive mechanism 530. The movable plate 550 is laterally movably connected to one side of the fixed plate 540, with its outer end extending beyond the fixed plate 540, allowing it to contact the pushing mechanism 520. The return spring is connected to the movable plate 550 and is used to pull the movable plate 550 to its outermost position. A push plate 510 is located on the top side of the movable plate 510. The pushing mechanism 520 is a track mounted on the frame 40. The side of the track closest to the movable plate is a guide surface 521, and one end of the guide surface 521 has a guide surface 522 for guiding the movable plate 550 to abut against the track surface 521. Specifically, when the moving plate 550 moves to the front end of the guide rail surface 521 along with the chain drive mechanism 530, one end of the moving plate 550 begins to contact the guide surface 522 and moves along the guide surface 522 onto the guide rail surface 521, causing the moving plate 550 to drive the push plate 510 to move together toward the nonwoven fabric 1, so that the end of the push plate 510 can extend into the cut 1a and continue to extend into the cut 1a until the moving plate 550 separates from the guide rail surface 521. Then, under the action of the return spring, the moving plate 550 is pulled back to its original position, causing the push plate 510 to extend out of the cut 1a.

[0061] Furthermore, referring to Figure 6 A push rod 551 is provided on one side of the movable plate 550, and a roller is provided at the free end of the push rod 551 for contacting the guide rail surface 521.

[0062] Furthermore, refer to Figure 3 , Figure 4 and Figure 8 The sleeve welding device 10 also includes a sleeve guiding mechanism 800, which is mounted on the movable frame 100 and located at the bottom end of the cutting mechanism 400. The sleeve guiding mechanism 800 includes two sets of vertically arranged conveyor belt mechanisms 810, each including two sets of front-to-back conveyor belts 820. A clamping conveyor position 821 is formed between the two sets of conveyor belts 820 for clamping and conveying the fabric cut by the cutting mechanism. Specifically, the fabric conveyed downwards by the fabric conveying mechanism 200 is conveyed between the clamping conveyor positions 821 of the two conveyor belt mechanisms 810, thus the cut fabric can be clamped by the two sets of conveyor belt mechanisms 810. Therefore, when the push plate 510 passes between the two conveyor belt mechanisms 810, the cut fabric can be folded in half. Furthermore, when the push plate 510 moves horizontally, the upper conveyor belt mechanism 810 conveys the fabric downwards, while the lower conveyor belt mechanism 810 conveys the fabric upwards, allowing the sleeve fabric to move with the push plate 510.

[0063] Furthermore, refer to Figure 4 The sleeve welding device 10 also includes a cuff welding mechanism 900 for welding an elastic sleeve at the cuff of the sleeve.

[0064] Reference Figures 8-10 The cuff welding mechanism 900 includes a sleeve conveying mechanism 910, a clamping mechanism 920, a folding mechanism 930, a transfer mechanism 940, a second circulating conveyor line 950, a support plate 960, and a third welding mechanism 970. The sleeve conveying mechanism 910 includes a square sleeve 911 and a support roller 912 supporting the square sleeve 911, as well as a shearing mechanism 913 located at the front end of the square sleeve 911. The third welding mechanism 970 is mounted on the frame 40 and is used to weld the cuffs that are elastically fitted onto the sleeves. Therefore, the elastic sleeve can be fitted onto the square tube 911, and the end of the elastic sleeve can be clamped by the clamping mechanism 920 and moved a certain distance. After the clamping mechanism 920 pulls the elastic sleeve out a certain distance, the shearing mechanism 913 can cut off the pulled-out elastic sleeve, and the cut elastic sleeve can be fitted onto the folding mechanism 930. Then, the transfer mechanism 940 rotates the elastic sleeve on the folding mechanism 930 onto the support plate 960, and the support plate 960 opens the elastic sleeve. After the support plate 960 moves with the second circulating conveyor line 950, it can extend into the space between the upper and lower layers of fabric stacked on the push plate 510. When it moves to the welding position of the third welding mechanism 970, the third welding mechanism 970 welds the elastic sleeve to the cuff. Furthermore, in order to prevent the shearing mechanism 913 from sliding on the elastic sleeve square tube 911, the sleeve conveying mechanism 910 also includes a clamping member 914, which clamps the square tube 911 onto the support roller shaft 912, thereby securing the square tube 911 and the elastic sleeve fitted on the square tube 911.

[0065] Reference Figures 8-10 A clamping mechanism 920 is located at one end of the sleeve conveying mechanism 910 and is used to clamp the elastic sleeve fitted on the square sleeve 912. The clamping mechanism 920 includes four sets of clamping members 921 arranged diagonally in a rectangle and a moving assembly 922. The clamping members 921 are located on the moving assembly 922 and can move with the moving assembly 922. The elastic sleeve is fitted on the square tube 912, and the end of the elastic sleeve extends out from the end of the square tube 912. Therefore, the four sets of clamping members 921 can clamp the four diagonals of the elastic sleeve. After the moving assembly 922 pulls the elastic sleeve a certain distance, the shearing mechanism 913 cuts off the pulled-out part of the elastic sleeve.

[0066] Reference Figure 9The folding mechanism 930 is located on one side of the clamping mechanism 920. The folding mechanism 930 includes a translation member 931 and two support rods 932 mounted on the translation member. Each of the free ends of the two support rods 932 is provided with a friction part 933. Specifically, after the clamping member 921 clamps and pulls the elastic sleeve out a certain distance, the translation member 931 drives the two support rods 932 to extend into the elastic sleeve from the opening. After the shearing mechanism 913 cuts the elastic sleeve, the broken end of the elastic sleeve wraps around the friction part 933 due to elastic tightening. When the support rods 932 retract, the broken part of the elastic sleeve moves along with the support rods 932. Since the other end of the elastic sleeve is clamped by the clamping member 921, the two ends of the elastic sleeve will fold together, thus folding the elastic sleeve into two layers.

[0067] Reference Figure 8 The second circulating conveyor line 950 is mounted on the frame 40 and includes a conveyor belt 951. The conveying direction of the conveyor belt 951 is consistent with the conveying direction of the first circulating conveyor line 500. A support plate 960 is mounted on the conveyor belt 951 and always follows the conveyor belt 951 horizontally.

[0068] Reference Figure 8 The transfer mechanism 940 is located on one side of the folding mechanism 930. The transfer mechanism 940 includes a three-axis moving mechanism 941 and a spreading mechanism 942 on the three-axis moving mechanism 941, which is used to spread the elastic sleeve on the folding mechanism 930 and rotate it onto the support plate 960. Specifically, after the elastic sleeve is folded by the folding mechanism 930, the folding mechanism 930 returns to its initial position. The three-axis moving mechanism 941 drives the spreading mechanism 942 to move to the front end of the folding mechanism 930. Then, the folding mechanism 930 can put the elastic sleeve onto the two support claws of the spreading mechanism 942. The two support claws spread the elastic sleeve open, and then the three-axis moving mechanism 941 puts the elastic sleeve onto the support plate 960. The support plate 960 moves the elastic sleeve between the upper and lower layers of the cuff and can be synchronously transported to the welding position of the third welding mechanism 970 for welding.

[0069] Furthermore, refer to Figure 9 and Figure 10 The clamping mechanism 920 also includes a support base 923 and two sets of clamping assemblies 92, which are arranged vertically on the support base 923. Each clamping assembly 92 includes a connecting shaft 924, two clamping plates 925, and a cylinder 926. The connecting shaft 924 is mounted on the support base 923, the two clamping plates 925 are rotatably connected to the connecting shaft 924, and the cylinder 926 is connected to the two clamping plates 925 to drive them to clamp or open. Clamping portions extend from both sides of each clamping plate 925, and the two clamping portions that clamp each other form a clamping member 921.

[0070] Furthermore, refer to Figure 10The clamping mechanism 920 also includes a bidirectional cylinder 929. The connecting shaft 924 of the two clamping components 92 is equipped with a connecting rod 927, and each connecting rod 927 is pivotally connected to a connecting arm 928. The two telescopic ends of the bidirectional cylinder 929 are respectively connected to the corresponding connecting arms. In this embodiment, the bidirectional cylinder 929 can push the two clamping components 92 to swing up and down, thereby opening the clamped opening to facilitate the insertion of the folding mechanism 930. Furthermore, when the clamping member 921 loosens the tension sleeve, the bidirectional cylinder 926 drives the two clamping components 92 to swing downwards, causing the clamping member 921 to tilt downwards, thus facilitating the repositioning of the tension sleeve openings.

[0071] Furthermore, refer to Figure 12 The folding mechanism 930 also includes an opening mechanism 934, which comprises two moving parts 935 that can move in opposite directions. Each moving part 935 is connected to a support rod 932. When the two support rods 932 are inserted into the tension sleeve, the opening mechanism 934 can drive the two support rods 932 to open to both sides, thus opening the tension sleeve onto the two support rods 932. When the opening mechanism 942 of the transfer mechanism 940 is inserted into the tension sleeve, the two support rods 932 retract inward, causing the tension sleeve to retract onto the opening mechanism 944. The opening mechanism 934 can be a rotary eccentric mechanism or a two-way cylinder, etc.

[0072] Furthermore, refer to Figure 5 The second circulating conveyor line 500 is longer than the first circulating conveyor line 950, and the second welding mechanism 700 is located between the tail end of the first circulating conveyor line 500 and the tail end of the second circulating conveyor line 950. In this embodiment, when the push plate 510 separates from the sleeve, the support plate 960 can still support and fix the cuff, and when the sleeve is conveyed to the welding position of the second welding mechanism 700, the sleeve can still be straightened for welding.

[0073] Furthermore, the first welding mechanism 600 and the third welding mechanism 970 are arranged opposite to each other. Two clamping conveyor belts 980 are also arranged vertically between the first welding mechanism 600 and the third welding mechanism 970, forming a clamping conveyor position 981 between the two clamping conveyor belts 980. When the push plate 510 pushes the cut sleeve fabric 2 to fold in half, the front side of the push plate 510 gradually enters the clamping conveyor position 981, thereby allowing the folded sleeve fabric to adhere to the upper and lower sides of the push plate, facilitating the welding of the sleeve to the non-woven fabric.

[0074] Furthermore, a support plate is also provided on the frame 40 to support the folded portions on both sides of the nonwoven fabric 1, so that the cuts 1a on both sides of the nonwoven fabric open vertically. This facilitates the pusher plate 510 to extend into the cuts 1a.

[0075] Furthermore, the first welding mechanism 600, the second welding mechanism 700, and the third welding mechanism 970 are all ultrasonic welding mechanisms.

[0076] The above are merely preferred embodiments of the invention and are not intended to limit the invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A method for welding sleeves of an isolation gown, characterized in that, A nonwoven fabric is continuously conveyed, with both sides of the nonwoven fabric folded towards the center. Cuts are intermittently made at the folded positions on both sides of the nonwoven fabric along the conveying direction. Sleeve fabric is vertically conveyed downwards on both sides of the nonwoven fabric. A notch is cut on the side of the sleeve fabric closest to the nonwoven fabric, and the sleeve fabric moves towards the center of the nonwoven fabric, causing the notch to engage with the edge of the folded position. One end of a pusher plate extends laterally into the cut and supports the upper and lower layers of fabric at the cut. The pusher plate moves synchronously with the nonwoven fabric and pushes the sleeve fabric to fold, causing the edge of one end of the sleeve fabric to wrap around the outside of the cut. A welding mechanism welds the overlapping portion of the sleeve fabric and the cut edge together, and after welding, the pusher plate separates from the sleeve fabric. Another welding mechanism welds the edge of the sleeve fabric, welding the sleeve fabric onto the nonwoven fabric to form a sleeve.

2. A welding device for the sleeves of an isolation gown, used in the welding method for the sleeves of an isolation gown as described in claim 1, characterized in that, The isolation gown sleeve welding equipment includes: A folding conveyor mechanism is used to fold both sides of a nonwoven fabric to the upper surface of the nonwoven fabric body. The folding conveyor mechanism has an input end for the nonwoven fabric and an output end for the folded nonwoven fabric. The frame is located at the output end of the folding conveyor mechanism; A cutting mechanism, mounted on the frame, is used to intermittently cut slits along both edges of the folded nonwoven fabric; and, Two sets of sleeve welding devices are symmetrically arranged on both sides of the frame for welding sleeves at the cuts on both sides of the nonwoven fabric. The sleeve welding device includes a movable frame, a fabric conveying mechanism, a cutting mechanism, a slitting mechanism, a first circulating conveyor line, a first welding mechanism, and a second welding mechanism. The movable frame is movably mounted on the machine frame and is connected to a drive mechanism for reciprocating movement. The fabric conveying mechanism is mounted on the movable frame and vertically conveys the fabric for forming the sleeve downwards. The cutting mechanism is mounted on the movable frame and cuts a notch on the side of the sleeve fabric closest to the nonwoven fabric body. The slitting mechanism is mounted on the movable frame and cuts the fabric output by the fabric conveying mechanism. The first circulating conveyor line is mounted on the machine frame and has multiple push plates equidistantly arranged on it for folding the hanging sleeve fabric. The machine frame has a pushing mechanism for pushing one end of the push plate into the notch in the nonwoven fabric. The first welding mechanism is mounted on the machine frame and welds the sleeve to the edge of the notch in the nonwoven fabric. The second welding mechanism is mounted on the machine frame and welds the edge of the sleeve. The cutting mechanism and the slitting mechanism are rolling cutting mechanisms mounted on the movable frame. The rolling cutting mechanism includes two opposing rollers and a motor that drives the two rollers to rotate relative to each other. Cutting blades are mounted on the rollers. The first circulating conveyor line includes a chain drive mechanism, a fixed plate, a movable plate, and a return spring. The chain drive mechanism is mounted on the frame. Multiple fixed plates are equidistantly mounted on the chain drive mechanism. The movable plate is laterally movably connected to one side of the fixed plate, with its outer end extending out of the fixed plate. The return spring is connected to the movable plate and is used to pull the movable plate to its outermost position. A push plate is mounted on the top side of the movable plate. The pushing mechanism is a track mounted on the frame. The side of the track closest to the movable plate is a guide rail surface, and one end of the guide rail surface has a guide surface for guiding the movable plate to abut against the track surface.

3. The isolation gown sleeve welding equipment according to claim 2, characterized in that: The sleeve welding device also includes a sleeve guiding mechanism, which is mounted on the movable frame and located at the bottom of the cutting mechanism. The sleeve guiding mechanism includes two sets of vertically arranged conveyor belt mechanisms, each of which includes two sets of front-to-back conveyor belts. A clamping conveying position is formed between the two sets of conveyor belts for clamping the fabric cut by the cutting mechanism.

4. The isolation gown sleeve welding equipment according to claim 2, characterized in that: The sleeve welding device also includes a cuff welding mechanism for welding an elastic sleeve at the cuff of the sleeve; the cuff welding mechanism includes a sleeve conveying mechanism, a clamping mechanism, a folding mechanism, a transfer mechanism, a second circulating conveying line, a support plate, and a third welding mechanism; the sleeve conveying mechanism includes a square sleeve and a support roller shaft supporting the square sleeve, as well as a shearing mechanism disposed at the front end of the square sleeve. The clamping mechanism is located at one end of the sleeve conveying mechanism and is used to clamp the elastic sleeve fitted on the square sleeve. The clamping mechanism includes four sets of clamping members arranged diagonally in a rectangle and a moving assembly. The clamping members are located on the moving assembly and can move with the moving assembly. The folding mechanism is located on one side of the clamping mechanism and includes a translation member and two support rods provided on the translation member. The free ends of the two support rods are provided with friction parts. The second circulating conveyor line is mounted on the frame and includes a conveyor belt. The conveying direction of the conveyor belt is consistent with the conveying direction of the first circulating conveyor line. The support plate is mounted on the conveyor belt and always follows the conveyor belt horizontally. The transfer mechanism is located on one side of the folding mechanism. The transfer mechanism includes a three-axis moving mechanism and a spreading mechanism on the three-axis moving mechanism, which is used to spread the elastic sleeve on the folding mechanism and rotate it onto the support plate. The third welding mechanism is located on the frame and is used to weld the elastic sleeve to the cuff of the sleeve.

5. The isolation gown sleeve welding equipment according to claim 4, characterized in that: The folding mechanism also includes an opening mechanism, which includes two moving parts that can move toward or in opposite directions, and each moving part is connected to a support rod.

6. The isolation gown sleeve welding equipment according to claim 4, characterized in that: The clamping mechanism further includes a support base and two sets of clamping assemblies, which are arranged vertically on the support base. Each clamping assembly includes a connecting shaft, two clamping plates, and a cylinder. The connecting shaft is located on the support base, and the two clamping plates are rotatably connected to the connecting shaft. The cylinder is connected to the two clamping plates and is used to drive the clamping plates to clamp or open. Clamping portions extend from both sides of each clamping plate, and the two clamping portions that clamp each other form the clamping member.

7. The isolation gown sleeve welding equipment according to claim 6, characterized in that: The clamping mechanism further includes a bidirectional cylinder. The connecting shafts of the two clamping components are provided with connecting rods, and each connecting rod is pivotally connected to a connecting arm. The two telescopic ends of the bidirectional cylinder are respectively connected to the corresponding connecting arms.

8. The isolation gown sleeve welding equipment according to claim 6, characterized in that: The second circulating conveyor line is longer than the first circulating conveyor line, and the second welding mechanism is located between the tail end of the first circulating conveyor line and the tail end of the second circulating conveyor line.

9. The isolation gown sleeve welding equipment according to claim 6, characterized in that: The first welding mechanism and the third welding mechanism are arranged opposite to each other. Two clamping conveyor belts are also arranged vertically between the first welding mechanism and the third welding mechanism, and a clamping conveying position is formed between the two clamping conveyor belts. One end of the clamping conveyor belt is located on one side of the clamping assembly.

10. The isolation gown sleeve welding equipment according to claim 9, characterized in that: The frame is also equipped with a support plate to support the flipped parts of the nonwoven fabric on both sides, so that the cuts on both sides of the nonwoven fabric open up and down.

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