Elastic band splicing device and splicing method thereof

Abstract

The invention discloses an elastic band splicing device and a splicing method thereof. The elastic band splicing device comprises a cutting and shaping mechanism, an ultrasonic welding mechanism, a patch and detection mechanism, an elastic band transition and transfer mechanism, a pressing and detection mechanism and a control system. Comprising the following steps: cutting a long material strip into a preset length by using a visual image detection technology, determining and adjusting the length of the material strip through the technology, and feeding the material strip into a drying furnace for high-temperature shaping; respectively splicing the inner and outer material belts at two ends of the material belt with the layered structure by adopting an ultrasonic welding machine; an elastic band is fixed to a patch station tool, a sheet is plugged into a welding opening gap through a patch mechanism, and the patch in-place condition is visually detected; s4, transferring the material belt subjected to sheet plugging to a pressing station, pressing the interface containing the thin sheet into a whole through a pressing machine, and performing finished product detection on the pressing effect by adopting an image sensor; the device has a shaping function and a function of a double-layer ultrasonic welding and patch pressing integrated process.

Description

Technical Field

[0001] The present invention relates to the technical field of textile equipment, and specifically to an elastic band splicing device and a splicing method thereof. Background Technique

[0002] An elastic band is an elastic strip material that is widely used in the fields of clothing, shoes and hats, medical supplies, etc., mainly for adjusting tightness, fixing components or providing comfortable support. In clothing manufacturing, elastic bands usually need to be cut into specific lengths and then spliced into a circular structure. The strength, flatness and dimensional accuracy of its interface directly affect the comfort, durability and aesthetics of the product. Therefore, the elastic band splicing process is a key link in the production process.

[0003] Currently, the elastic band splicing process on the market is as follows:

[0004] The elastic band is cut into sections by an automatic cutting device, and then single-layer sewing splicing is carried out by a sewing machine. Single-layer sewing relies on stitch connection, and the interface is prone to thread breakage and thread shedding due to stretching or friction, affecting the service life. The stitched interface is prone to form protrusions or wrinkles, affecting the wearing comfort, especially for close-fitting clothes or high-end clothes, which are difficult to meet the requirements. The length of the finished product depends on the accuracy of the raw material tape. If there are tolerances or uneven elasticity in the incoming material, it is easy to cause dimensional deviation of the final product and a low yield rate.

[0005] The double-layer tape is ultrasonically welded to enhance the interface strength, a thin sheet (plug) is embedded and then hot-pressed into shape, and finally the finished product is manually inspected. The alignment accuracy of manual welding, the position of the plug and the hot-pressing effect are difficult to standardize. The quality inspection result is subject to the subjective influence of the worker's experience, and the yield rate is unstable. Workers need to repeatedly visually check the flatness of the interface, the position of the plug, etc., which takes a long time and is prone to missed inspections, and it is difficult to meet the requirements of mass production.

[0006] Therefore, it is necessary to provide an elastic band splicing device and a splicing method thereof to solve the problems raised in the above background technique. Summary of the Invention

[0007] To achieve the above object, the present invention provides the following technical solution: An elastic band splicing device, comprising:

[0008] A cutting and shaping mechanism, an ultrasonic welding mechanism, a plug and detection mechanism, an elastic band transition and transfer mechanism, a hot-pressing and detection mechanism, and a control system;

[0009] Among them, the quantity configurations of the cutting and shaping mechanism, the ultrasonic welding mechanism, the plug and detection mechanism, the elastic band transition and transfer mechanism, and the hot-pressing and detection mechanism are 2, 4, 2, 2, 1.

[0010] Further, as a preference, the cutting and shaping mechanism includes:

[0011] A material box, a support belt rod, an automatic cutting mechanism, a push rod mechanism, a material pulling mechanism, a first rack, a length adjustment mechanism, a first vision detection device, a drying furnace and a conveying mechanism;

[0012] The long material belt in the material box is guided by the support belt rod to the automatic cutting mechanism for cutting. The material pulling mechanism conveys the cut material belt to the push rod mechanism. The push rod mechanism pushes the material belt to the length adjustment mechanism. The first vision detection device detects the length of the material belt and the length adjustment mechanism adjusts it. The conveying mechanism sends the material belt into the drying furnace for shaping and then outputs it.

[0013] Furthermore, as a preference, the ultrasonic welding mechanism includes:

[0014] An ultrasonic welding workbench, a second vision detection device, a second rack, a flipping and aligning mechanism and a flanging mechanism;

[0015] A workbench is provided on the second rack. The flanging mechanism and the flipping and aligning mechanism cooperate to complete the welding of the end of the material belt according to the analysis result of the second vision detection device.

[0016] Furthermore, as a preference, the plug piece and detection mechanism includes:

[0017] An annular guide rail line, a diaphragm unrolling and cutting mechanism, a third rack, a third vision detection device and a material pushing mechanism;

[0018] The annular guide rail line conveys the work fixture to fix the elastic band to the diaphragm unrolling and cutting mechanism to complete the plug piece. The third vision detection device detects the qualified products and transfers them to the next station. The material pushing mechanism rejects the unqualified products;

[0019] The diaphragm unrolling and cutting mechanism further includes an upper and lower opening and closing mechanism, a work fixture and an automatic cutting and unrolling device. Among them, the upper and lower opening and closing mechanism separates the upper and lower layers of the material belt, and the automatic cutting and unrolling device cuts the diaphragm and inserts it into the interlayer.

[0020] Furthermore, as a preference, the elastic band transition and transfer mechanism includes:

[0021] A first transition mechanism, a fourth rack, a work fixture rotation and translation mechanism and a second transition mechanism;

[0022] The first transition mechanism transfers the qualified elastic band to the work fixture rotation and translation mechanism. After multiple pieces are assembled, the work fixture rotation and translation mechanism transfers them to the second transition mechanism. The second transition mechanism conveys the material belt to the pressing and ironing station.

[0023] Furthermore, as a preference, the pressing and ironing and detection mechanism includes:

[0024] A pressing and ironing machine, a fifth rack, a work fixture, an annular guide rail line, a fourth vision detection device and a material pushing mechanism;

[0025] The annular guide rail line conveyor fixture fixes the elastic band to the pressing and ironing machine for pressing and forming. The fourth vision inspection device inspects the qualified products and sends them to the blanking station, and the pusher mechanism rejects the unqualified products.

[0026] A method for splicing elastic bands includes the following steps:

[0027] S1: Use vision image detection technology to cut the long tape into a preset length. After determining and adjusting the tape length through this technology, send the tape into a drying furnace for high-temperature shaping;

[0028] S2: For both ends of the tape with a layered structure, use an ultrasonic welding machine to splice the inner and outer tapes respectively;

[0029] S3: Fix the elastic band to the fixture at the plugging station. Insert the thin sheet into the gap of the welded joint through the plugging mechanism, and use vision to detect the position of the plugging;

[0030] S4: Transfer the tape with the plugging completed to the pressing and ironing station. Press and iron the joint containing the thin sheet into a whole through the pressing and ironing machine, and use an image sensor to conduct finished product inspection on the pressing and ironing effect.

[0031] Further, as a preference, in S1:

[0032] The raw tape has an alternating single-layer and double-layer structure with adjustable length in the single-layer area and fixed length in the double-layer area;

[0033] The tape includes line A, line B, and line C. Among them, line A is the single / double-layer demarcation sewing line, line B is the ultrasonic welding marking sewing line in the double-layer area, and line C is the virtual cutting indication line;

[0034] The K section formed by cutting according to two lines C is the area of the tape to be processed.

[0035] Further, as a preference, S2 specifically includes:

[0036] S21: Transfer the trimmed elastic band to the ultrasonic welding station;

[0037] S22: Flip the upper layers at both left and right ends of the tape;

[0038] S23: Flip the whole right end to directly above the left end;

[0039] S24: Align and weld the left and right lower layers;

[0040] S25: Align the upper and lower layers after inverting inside and outside;

[0041] S26: Move the already welded joint on the inner side to the right;

[0042] S27: Adjust and align the upper and lower tapes on the left side and then weld.

[0043] Further, preferably, S3 specifically includes:

[0044] S31: Transfer the tape after welding to the plugging piece station;

[0045] S32: Act on the upper and lower layers through the acupuncture cylinder to form a gap;

[0046] S33: Insert a thin rod to expand the space for the plugging piece;

[0047] S34: Withdraw the thin rod and detect the position of the plugging piece through vision.

[0048] Compared with the prior art, the beneficial effects of the present invention are:

[0049] In the present invention, a length adjustment mechanism and a first vision detection device are provided in the cutting and shaping mechanism to identify the actual length of the tape in real time and compare it with the standard value. The clamping jaws are driven by a stepping motor to stretch, so that the shaping function can correct the negative tolerance.

[0050] In the present invention, the double-layer structure of the tape is seamlessly welded by an ultrasonic welding machine, and the tensile strength of the interface is improved compared with single-layer sewing, completely solving the problems of stitch breakage and thread off. After embedding a thin sheet at the welding interface and pressing and ironing to form, the thickness difference at the interface is eliminated, and the flatness and elastic recovery rate of the splicing part are the same as those of the original tape, meeting the strict requirements of high-end clothing, medical bandages and other scenarios.

[0051] In the present invention, the first vision detection device accurately identifies the single-layer and double-layer demarcation suture line (A line) and the virtual cutting line (C line) of the tape to ensure cutting symmetry. The second vision detection device guides the flipping and alignment mechanism to automatically adjust the position deviation of the welding end to achieve precise alignment. The third vision detection device monitors the embedding position of the thin sheet and the surface quality of pressing and ironing in real time, and automatically rejects defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 is the process flow chart of the elastic band splicing production line of the present invention;

[0053] Figure 2 is the structural feature diagram of the elastic band raw tape of the present invention;

[0054] Figure 3 is the flow chart of the ultrasonic welding method of the present invention;

[0055] Figure 4 is the flow chart of the elastic band plugging piece method of the present invention;

[0056] Figure 5 is the overall layout diagram of the elastic band mechanism of the present invention;

[0057] Figure 6 is the structural schematic diagram of the cutting and shaping device of the present invention;

[0058] Figure 7 It is a schematic structural diagram of the ultrasonic welding device of the present invention;

[0059] Figure 8 It is a schematic structural diagram of the plug piece and the detection device of the present invention;

[0060] Figure 9 It is a schematic diagram of the film unwinding and cutting mechanism of the present invention;

[0061] Figure 10 It is a schematic diagram of the elastic band transition and transfer mechanism of the present invention;

[0062] Figure 11 It is a schematic diagram of the pressing and ironing and detection mechanism of the present invention;

[0063] In the figure: 10. Cutting and shaping mechanism; 101. Material box; 102. Belt support rod; 103. Automatic cutting mechanism; 104. Push rod mechanism; 105. Material pulling mechanism; 106. First rack; 107. Length adjustment mechanism; 108. First vision detection device; 109. Drying furnace; 110. Conveying mechanism; 20. Ultrasonic welding mechanism; 201. Ultrasonic welding workbench; 202. Second vision detection device; 203. Second rack; 204. Flipping and alignment mechanism; 205. Flanging mechanism; 30. Plug piece and detection mechanism; 301. Ring guide line; 302. Film unwinding and cutting mechanism; 3021. Up and down opening and closing mechanism; 3022. Tooling; 3023. Automatic cutting and unwinding device; 303. Third rack; 304. Third vision detection device; 305. Pushing material mechanism; 40. Elastic band transition and transfer mechanism; 401. First transition mechanism; 402. Fourth rack; 403. Tooling rotation balance mechanism; 404. Second transition mechanism; 50. Pressing and ironing and detection mechanism; 501. Pressing and ironing machine; 502. Fifth rack; 503. Tooling fixture; 504. Ring guide line; 505. Fourth vision detection device; 506. Pushing material mechanism. Specific embodiments

[0064] In the embodiments of the present invention, please refer to Figure 1 , the present invention provides a method for splicing elastic bands. This method mainly uses vision detection technology to position, cut, weld, insert plugs, press and iron, and detect the raw material tape, so as to process the raw material tape into a finished tape, including the following steps:

[0065] S1: Use vision image detection technology to cut the long material tape into appropriate lengths, and at the same time use this technology to determine and adjust the length of the material tape, and then enter the drying furnace for high-temperature shaping;

[0066] S2: The two ends of the material tape are layered, and an ultrasonic welding machine is used to splice the inner and outer material tapes respectively;

[0067] S3: The elastic band is placed on the fixture at the sheet inserting station. The structure at the sheet inserting station inserts the thin sheet into the gap of the welding joint and visually inspects whether the sheet is in place.

[0068] S4: After the strip passes through the sheet inserting process, it is moved to the pressing and ironing station. The pressing and ironing machine presses and irons the joint with the thin sheet into a whole, and the image sensor conducts finished product inspection on the pressing and ironing effect.

[0069] Further, before step S3, there is also step S2.1: The ultrasonic welded elastic band is moved to the sheet inserting station manually or by a manipulator.

[0070] Further, before step S4, there is also step S3.1: A single elastic band enters the pressing and ironing station in the form of multiple bands at the transfer station.

[0071] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made using the content of the specification of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

[0072] Please refer to Figure 2 As shown, the raw material strip in this embodiment is divided into two parts by line A. One part is the single-layer strip AA section, and the other part is the double-layer strip ABCBA section. When producing elastic bands of the same specification, the lengths of the single-layer strip AA section and the double-layer strip ABCBA section on the raw material strip are the same and appear alternately in sequence. Line B is the sewing line of the double-layer strip ABCBA section, which is used for positioning during later ultrasonic welding. Line C is the cutting indication line, which does not exist on the actual strip and is determined by the automatic cutting mechanism 103 in the cutting and shaping section. Its position is in the middle of the double-layer strip ABCBA section. After cutting along the cutting line C, a K section with the same length specification is formed. The K section is characterized by left-right symmetry, with a single-layer strip in the middle and symmetric double-layer open strips at the left and right ends. The subsequent shaping section will stretch and shape the K section. Therefore, the length of the K section should be less than the standard length, which requires that the lengths of both the single-layer strip AA section and the double-layer strip ABCBA section be slightly smaller than the specified length. This is another characteristic of the raw material strip in this embodiment.

[0073] Please refer to Figure 3 As shown, the following processing steps are also included in step S2:

[0074] S21: The elastic band after cutting and shaping is moved to the ultrasonic welding station

[0075] S22: The upper layers at both left and right ends are flipped

[0076] S23: The whole right end is flipped left to directly above the left end

[0077] S24: Adjust and align the lower left and right layers for welding

[0078] S25: Align the upper and lower layers after inverting inside and outside

[0079] S26: Move the welded interface on the inner side to the right

[0080] S27: Adjust, align and weld the left loading and unloading tape

[0081] Please refer to Figure 4 As shown, the following processing steps are further included in step S3:

[0082] S31: Transfer the welded tape to the plugging piece station by manual or manipulator

[0083] S32: The acupuncture cylinder acts on the gap leaking out between the upper and lower layers

[0084] S33: Insert in the middle of the thin rod and expand the plugging piece space on both sides

[0085] S34: Withdraw the thin rod and visually inspect the effect of the plugging piece

[0086] Please refer to Figure 5 As shown, the present invention also provides an elastic band splicing mechanism, including a cutting and shaping mechanism 10, an ultrasonic welding mechanism 20, a plugging piece and detection mechanism 30, an elastic band transition transfer mechanism 40, a pressing and ironing and detection mechanism 50 and a control system. The cutting and shaping mechanism 10 cuts the elastic band in the material box according to the length requirement, adjusts the length through vision and sends it into the drying furnace for shaping, and then sends the material to the ultrasonic welding mechanism 20. The ultrasonic welding mechanism 20 is responsible for double-layer welding the two ends of the elastic band. The function of the plugging piece and detection mechanism 30 is to insert a diaphragm between the double-layer tapes formed after welding, and ensure that the position of the plugging piece is correct and unbiased. The elastic band filtering and transfer mechanism 40 is responsible for transferring the elastic band with the plugging piece inserted to the pressing and ironing and detection mechanism 50. Since the pressing and ironing takes a long time, the pressing and ironing station needs to process multiple elastic bands simultaneously, so the elastic band filtering and transfer mechanism 40 also needs to have an accumulation function, that is, accumulate single elastic bands to a specified number before sending them into the pressing and ironing and detection mechanism 50. In order to improve production efficiency, the number of the above-mentioned component mechanisms is optimized in this embodiment.

[0087] Please refer to Figure 6As shown in the figure, the cutting and shaping mechanism 10 includes a material box 101, a belt supporting rod 102, an automatic cutting mechanism 103, a push rod mechanism 104, a material pulling mechanism 105, a first frame 106, a length adjustment mechanism 107, a first vision detection device 108, a drying furnace 109, and a conveying mechanism 110. The elastic band in the material box 101 passes through the belt supporting rod 102 and automatically extends a short distance after passing through the automatic cutting mechanism 103. At this time, the material pulling mechanism 105 extends its claws to grab this short distance. Then, the automatic cutting mechanism 103 and the material pulling mechanism 105 work synchronously to pull the elastic band to the tabletop. The first vision detection device 108 is installed on the automatic cutting mechanism 103. After detecting the ultrasonic welding seam A, the automatic cutting mechanism 103 automatically cuts after running for a period of time. At this time, the material pulling mechanism 105 continues to work until a complete K segment is pulled to the appropriate tabletop position. The push rod mechanism 104 pushes the cut elastic band to the worktable surface of the length adjustment mechanism 107. The claws at the left and right ends of the length adjustment mechanism 107 clamp the two ends of the elastic band. The first vision detection device 108 collects images of the left and right seams of the elastic band on the worktable surface of the length adjustment mechanism 107. The collected images are processed by comparing with the reference line images on the worktable surface to calculate the difference between the actual distance between the welding seams and the standard value. The length adjustment mechanism 107 realizes the stretching adjustment of the elastic band by clamping the two ends of the elastic band with the left and right claws and then stretching the distance between the two claws. This mechanism can be realized by using a stepping motor + ball screw mechanism. The specific stretching distance is the sum of the left and right differences calculated above. The length adjustment mechanism 107 is fixed on the conveying mechanism 110, and the elastic band is fixed and stretched on the length adjustment mechanism 107. Therefore, the conveying mechanism 110 can send the stretched elastic band into the drying furnace 109 for shaping. After a period of high-temperature baking and shaping, the shaped elastic band is sent to the next station or directly sent to the ultrasonic welding station.

[0088] Please refer to Figure 7 As shown in the figure, the ultrasonic welding mechanism 20 includes an ultrasonic welding workbench 201, a second vision detection device 202, a second frame 203, a flipping and aligning mechanism 204, and a flanging mechanism 205. The cut and shaped elastic band is placed on the ultrasonic welding workbench 201. The flanging mechanisms 205 on both sides perform unilateral flipping on the double-layer material tapes at both ends. The flipping and aligning mechanism 204 flips the right side as a whole to the left side. The second vision detection device 202 collects the ultrasonic welding seams at this time and compares them with the previously collected ultrasonic welding seams at the left end. The flipping and aligning mechanism 204 automatically adjusts the horizontal, vertical, and angular parameters according to the comparison results. After the two ends of the seams are aligned, the ultrasonic welding workbench 201 extends forward and completes the welding process at one end. The welding on the other side is similar, but a manipulator is needed to realize the overall flipping of the front and back sides. After both the front and back sides are welded, it can be transferred to the fixture of the chip inserting and detection mechanism through a manipulator or manually.

[0089] See also Figure 8 As shown, the plugging and detection mechanism 30 includes an annular guide line 301, a film unwinding and cutting mechanism 302, a third frame 303, a third visual inspection device 304 and a pushing mechanism 305. The annular guide line 301 is fixed on the third frame 303 and is divided into four stations: an elastic band loading area, a film unwinding and cutting area, a visual inspection area and a finished product unloading area. The film unwinding and cutting area is provided with a film unwinding and cutting mechanism 302, and the visual inspection area is provided with a third visual inspection device 304 and a pushing mechanism 305. The elastic band installed on the tooling can be fed into the film unwinding and cutting mechanism 302, the third visual inspection device 304 and the transfer station in turn. The film unwinding and cutting mechanism 302 is used to plug the film into the welded elastic band gap, and the third visual inspection device 304 is used to detect the plugging effect. If the inspection is qualified, it will enter the transfer station, and if the inspection is unqualified, it will be pushed into the waste box by the pushing mechanism 305.

[0090] See also Figure 9 As shown, the film unwinding and cutting mechanism 302 includes an upper and lower opening and closing mechanism 3021, a tool 3022 and an automatic cutting and unwinding device 3023. The needle-piercing cylinder provided on the upper and lower opening and closing mechanism 3021 opens the upper and lower layers of the elastic band welding part on the tool 3022, and the support rod on the automatic cutting and unwinding device 3023 is inserted into the middle of the gap and expands to both sides respectively. When a certain pressure is detected, it stops, and then a small piece of film cut automatically is inserted into the gap, and the support rod is withdrawn to complete the whole set of actions.

[0091] See also Figure 10 As shown, the elastic band transition transfer mechanism 40 includes a first transition mechanism 401, a fourth frame 402, a tooling rotation balancing mechanism 403 and a second transition mechanism 404. When there is an elastic band in the unloading area of ​​the plug and detection mechanism 30, the tooling on the tooling rotation and translation mechanism 403 docks with it. At this time, the acupuncture cylinder on the first transition mechanism 401 moves the elastic bands one by one to the tooling on the tooling rotation and translation mechanism 403. After the corresponding number of elastic bands have been transferred, the rotating cylinder on the tooling rotation and translation mechanism 403 rotates 180 degrees and moves to the loading area of ​​the pressing and testing mechanism 50 and docks with it. With the working principle similar to the first transition mechanism 403, the second transition mechanism 404 delivers multiple elastic bands into the loading area of ​​the pressing and testing mechanism 50.

[0092] See also Figure 11As shown in the figure, the pressing and detecting mechanism 50 includes a pressing machine 501, a fifth rack 502, a tooling fixture 503, a circular guide line 504, a fourth vision detection device 505, and a pushing mechanism 506. The circular guide line 504 can move the elastic band installed on the tooling fixture 503 to the pressing machine 501, the fourth vision detection device 505, and the blanking station. The tooling fixture 503 equipped with multiple elastic bands is transferred to the station of the pressing machine 501. The pressing machine 501 moves to the exact middle position of the double-layer tape containing the diaphragm under the push of the base cylinder and starts pressing. After about 15 seconds, the pressing head of the pressing machine 501 lifts up and returns to the initial position. The tooling fixture 503 equipped with the elastic band is transferred to the station of the fourth vision detection device 505. The fourth vision detection device 505 detects whether the pressed surface is qualified. The qualified products enter the blanking station of the circular guide line 504, and the unqualified products are pushed into the waste box by the pushing mechanism 506.

[0093] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An elastic band splicing device, characterized in that: include: A cutting and shaping mechanism (10), an ultrasonic welding mechanism (20), a plugging and testing mechanism (30), an elastic band transition transfer mechanism (40), a pressing and testing mechanism (50), and a control system; The number of the cutting and shaping mechanism (10), the ultrasonic welding mechanism (20), the plugging and testing mechanism (30), the elastic band transition transfer mechanism (40), and the pressing and testing mechanism (50) is configured as 2, 4, 2, 2, and 1.

2. An elastic band splicing device according to claim 1, characterized in that: The cutting and shaping mechanism (10) comprises: A material box (101), a support rod (102), an automatic cutting mechanism (103), a push rod mechanism (104), a material pulling mechanism (105), a first frame (106), a length adjustment mechanism (107), a first visual inspection device (108), a drying oven (109) and a conveying mechanism (110); The long material strip in the material box (101) is guided by the support rod (102) to the automatic cutting mechanism (103) for cutting, the pulling mechanism (105) conveys the cut material strip to the push rod mechanism (104), the push rod mechanism (104) pushes the material strip to the length adjustment mechanism (107), the first visual inspection device (108) detects the length of the material strip and adjusts it by the length adjustment mechanism (107), and the conveying mechanism (110) conveys the material strip to the drying furnace (109) for shaping and output.

3. An elastic band splicing device according to claim 1, characterized in that: The ultrasonic welding mechanism (20) comprises: An ultrasonic welding workbench (201), a second visual inspection device (202), a second frame (203), a flipping and alignment mechanism (204), and a flanging mechanism (205); A workbench is provided on the second frame (203), and the flanging mechanism (205) and the flipping alignment mechanism (204) cooperate to complete the welding of the ends of the material strip according to the analysis results of the second visual inspection device (202).

4. An elastic band splicing device according to claim 1, characterized in that: The plug and detection mechanism (30) comprises: An annular guide rail (301), a film unwinding and cutting mechanism (302), a third frame (303), a third visual inspection device (304) and a material pushing mechanism (305); The circular guide line (301) conveys the tooling fixing elastic band to the film unwinding and cutting mechanism (302) to complete the film plugging, the third visual inspection device (304) inspects the qualified products and transfers them to the next station, and the pushing mechanism (305) removes the unqualified products; The film unwinding and cutting mechanism (302) further comprises an upper and lower opening and closing mechanism (3021), a tool (3022) and an automatic cutting and unwinding device (3023), wherein the upper and lower opening and closing mechanism (3021) separates the upper and lower layers of the material strip, and the automatic cutting and unwinding device (3023) cuts the film and inserts it into the interlayer.

5. The elastic band splicing device according to claim 1, characterized in that: The elastic band transition transfer mechanism (40) comprises: A first transition mechanism (401), a fourth frame (402), a tooling rotation and translation mechanism (403), and a second transition mechanism (404); The first transition mechanism (401) transfers the qualified elastic band to the tooling rotating and translating mechanism (403), and after a plurality of elastic bands are collected, the tooling rotating and translating mechanism (403) transfers them to the second transition mechanism (404), and the second transition mechanism (404) conveys the material band to the pressing station.

6. The elastic band splicing device according to claim 1, characterized in that: The pressing and detecting mechanism (50) comprises: A pressing machine (501), a fifth frame (502), a tooling fixture (503), a circular guide rail (504), a fourth visual inspection device (505) and a material pushing mechanism (506); The annular guide rail (504) transports the tooling fixture (503) to fix the elastic band to the pressing machine (501) for pressing and forming. The fourth visual inspection device (505) inspects qualified products and enters the unloading station. The pushing mechanism (506) removes unqualified products.

7. A method for splicing elastic bands, characterized in that: The following steps are involved: S1: Use visual image detection technology to cut the long strip into a preset length. After the strip length is determined and adjusted by this technology, the strip is sent to a drying furnace for high-temperature shaping; S2: At both ends of the layered structure material strip, an ultrasonic welding machine is used to splice the inner and outer fabric strips respectively; S3: Fix the elastic band to the plugging station tooling, plug the thin sheet into the gap of the welding port through the plugging mechanism, and use visual inspection to check whether the plugging is in place; S4: The material strip with the sheet inserted is transferred to the pressing station, and the interface containing the sheet is pressed into a whole by a pressing machine, and the pressing effect is detected by an image sensor.

8. The elastic band splicing method according to claim 7, characterized in that: In S1: The raw material belt is a structure of alternating single-layer and double-layer areas, the length of the single-layer area is adjustable and the length of the double-layer area is fixed; The material strip includes line A, line B and line C, wherein line A is a single-layer and double-layer boundary seam, line B is a double-layer area ultrasonic welding mark seam, and line C is a virtual cutting indicator line; The K segment formed by cutting along the two C lines is the material strip area to be processed.

9. The elastic band splicing method according to claim 7, characterized in that: The S2 specifically includes: S21: transferring the cut and shaped elastic band to the ultrasonic welding station; S22: Flip the upper layers at the left and right ends of the material strip; S23: Turn the right end to the left to the top of the left end; S24: aligning and welding the left and right lower layers; S25: turning inside out and aligning the upper and lower layers; S26: Move the inner welded interface to the right; S27: Adjust and align the upper and lower material strips on the left side and then weld.

10. The elastic band splicing method according to claim 7, characterized in that: The S3 specifically includes: S31: transferring the welded material strip to the plugging station; S32: A needling cylinder is used to form a gap between the upper and lower layers; S33: insert a thin rod to expand the plug space; S34: Withdraw the thin rod and visually inspect the plug position.

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