A magnetic screen door edge sealing device

Abstract

The present invention discloses a magnetic screen door edge pressing and sealing device, comprising edge cloths and a folding and sealing mechanism. The edge cloths include edge cloth 1, edge cloth 2, and edge cloth 3. The connecting section of edge cloth 1 and edge cloth 2 is provided with a linear fold. Edge cloth 3 is suitable for holding magnetic strips / blocks and is bonded or connected to the side of edge cloth 2 facing away from edge cloth 1 via sewing thread. The folding and sealing mechanism includes a folding member suitable for folding edge cloth 2 and edge cloth 3 (holding the magnetic strips / blocks) within edge cloth 1. The folding member has notches on both the top and bottom sides of the tail, an anvil is mounted at the bottom notch, and an ultrasonic welding wheel is mounted at the top notch. The ultrasonic welding wheel and anvil are suitable for welding and sealing the folded edge cloths to the gauze. The present invention provides a double-layer edge binding structure capable of preventing leaks and deviation, and magnetic screen door production equipment for performing efficient, high-quality edge pressing and sealing processing on the double-layer edge binding structure in one operation.

Description

Technical Field

[0001] The invention relates to a magnetic screen door edge sealing technology for preventing leakage, in particular to a magnetic screen door edge pressing and sealing device. Background Art

[0002] The structure of a magnetic screen door generally includes at least two screens and side cloths sealed around the edges of the screens. In the past, the side cloths were sewn on, but magnetic screen doors require magnetic material to be installed inside the middle side cloth to ensure the attraction of the two sets of screens after installation.

[0003] Gauze is a mesh product, mostly made of alloy or plastic. It has good toughness and corrosion resistance, and is widely used in homes and hotels to prevent mosquitoes and insects. After the gauze is processed, its sides need to be hemmed to facilitate installation and prevent the sides from bending.

[0004] In the existing technology, when the gauze is hemmed, the hemming strips are often manually clipped to the sides of the gauze, and then the long hemming strips are bent into rectangles to completely wrap the sides of the gauze. In addition, it is difficult to ensure the accuracy of the side edges being flush after the hemming strips are bent, resulting in low efficiency of manual hemming.

[0005] Wrinkles and leaks: Due to the use of magnetic materials, which are typically placed at intervals, the edge fabric will inevitably deviate when it is sealed, resulting in wrinkles and poor appearance. In severe cases, leaks may occur in this area. Traditional edge fabrics are single-layered, making this a particularly significant problem.

[0006] A search revealed that CN110774603A discloses a gauze hemming device. By providing a pressing portion on the hemming roller, the device can compress the edge fabric between adjacent magnetic strips along the length of the hemming process, blocking the passage between adjacent magnetic strips along the length of the hemming process to prevent movement between the magnetic strips. This solves the problem of existing gauze hemming devices where magnetic strips are prone to movement during the hemming process, overlapping between adjacent magnetic strips, and thus affecting the hemming quality. This technology only discloses the hemming process between adjacent magnetic strips along the length of the hemming process, but does not disclose the specific hemming structure of the magnetic strips on the side away from the gauze edge sealing. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a magnetic screen door production device which can realize a double-layer edging structure with leak-proof seams and no deviation, and a high-efficiency and high-quality edge pressing and sealing process for the double-layer edging structure.

[0008] In order to solve the above technical problems, the inventors have come up with the technical solution of the present invention through practice and summary. The present invention adopts the following technical solution:

[0009] A magnetic screen door edge pressing and sealing device, comprising edge cloth and a folding and sealing mechanism;

[0010] The side cloth comprises side cloth 1, side cloth 2 and side cloth 3. The connecting section of side cloth 1 and side cloth 2 is provided with a linear fold. Side cloth 3 is suitable for holding magnetic strips / blocks and is bonded or connected to the side of side cloth 2 facing away from side cloth 1 via sewing thread.

[0011] The folding and sealing mechanism includes a folding piece suitable for folding the side cloth 2 and the side cloth 3 containing the magnetic strips / blocks inside the side cloth 1. The top and bottom sides of the tail of the folding piece are both provided with notches. An anvil is installed at the bottom notch and an ultrasonic welding wheel is installed at the top notch. The ultrasonic welding wheel and the anvil are suitable for welding and sealing the folded side cloth and the gauze.

[0012] Preferably, anti-deviation conveying rollers are installed on both the upper and lower sides of the tail of the folding piece, and the conveying rollers are symmetrical and tilted horizontal rollers.

[0013] Preferably, the folding member is provided with two groups of conveying rollers, which are respectively located at the front side and the rear side of the notch, and the conveying rollers at the front side and the rear side are inclined in opposite directions.

[0014] Preferably, the folding member comprises: a folding portion 1 adapted to preliminarily fold the side cloth 1 and the side cloth 2 along a linear fold, the folding portion 1 comprising a folding cylinder, the side cloth inlet size of the folding cylinder being larger than the side cloth outlet size, a guide cone bulging outwardly and gradually approaching the middle of the folding cylinder along the side cloth conveying direction is provided at the side cloth inlet of the folding cylinder, the guide cone being adapted to press the side cloth 2 inwardly along the side cloth conveying direction with the side cloth 3 containing the magnetic strip / block, and the portion of the folding cylinder corresponding to the side cloth 2 being gradually recessed inwardly along the side cloth conveying direction to form a folding mark, and the folding mark being adapted to adapt to the linear fold;

[0015] A folding portion 2 is adapted to perform final folding of the preliminarily folded side cloth 1 and side cloth 2 along the periphery of the inner magnetic strip / block of side cloth 3. The folding portion 2 comprises a folding frame arranged at the rear end of the folding cylinder. An opening is provided on one side of the folding frame. The opening is adapted to be located on the same side as the guide cone and is adapted for entry of the gauze and the magnetic strip / block. A downwardly extending protrusion 1 is provided at the top of the opening, and an upwardly extending protrusion 2 is provided at the bottom. The protrusion 1 and the protrusion 2 are adapted to guide and position two linear folds of the side cloth 1 and the side cloth 2, respectively. The protrusion 1 gradually approaches the protrusion 2 along the conveying direction of the side cloth until it is directly above the protrusion 2.

[0016] The notch and the conveying roller are arranged on the folding frame.

[0017] Preferably, the top of the folding frame close to the side of protrusion 1 gradually approaches the bottom of the folding frame along the edge cloth conveying direction, and the top of the tail of the folding frame is suitable for pressing edge cloth 1 and edge cloth 2 until edge cloth 2 is wrapped around the outside of the magnetic strip / block.

[0018] Preferably, a guide conveying structure suitable for conveying and positioning the internal magnetic strips / blocks together with the inner top edge cloth is installed in the inner middle part of the folding frame along the edge cloth conveying direction. The guide conveying structure includes a ridge arranged toward the opening position and a guide wheel facing the opening.

[0019] Preferably, the distance between the two folding marks gradually decreases along the conveying direction of the edge cloth, and a limiting notch is arranged between the two folding marks, which is suitable for conveying the edge cloth three containing the magnetic strips / blocks along the conveying direction of the edge cloth.

[0020] Preferably, the two fold marks at the tail of the folding cylinder are respectively adapted to the top and bottom of the side cloth inlet of the folding frame, and the protrusions 1 and 2 at the tail of the two fold marks and the side cloth inlet of the folding frame are suitable for unobstructed transportation of the initially folded side cloth.

[0021] Preferably, an adsorption structure is installed on the outer side of the folding cylinder near the inlet end of the edge cloth, and the adsorption structure includes an annular cavity, an air pipe joint is installed on the annular cavity, and micropores for adsorbing the edge cloth are distributed in the overlapping area of ​​the annular cavity and the folding cylinder;

[0022] A plurality of the micro-holes are arranged at positions corresponding to the edge cloth transported inside the folding cylinder;

[0023] The width of the ridge located at the edge cloth inlet of the folding frame gradually increases along the conveying direction of the edge cloth.

[0024] A magnetic screen door production process, using the magnetic screen door edge pressing and sealing device according to claim 9, comprises the following steps:

[0025] Step 1: Place side cloth 1, side cloth 2, and side cloth 3 containing magnetic strips / blocks into the side cloth inlet of the folding drum. Side cloth 3 containing magnetic strips / blocks is adapted to the guide cone. An adsorption structure and an external negative pressure generator can be added to adsorb side cloth 1.

[0026] Step 2: Side cloth one and side cloth two are conveyed along the conveying direction, and side cloth three containing magnetic strips / blocks squeezes side cloth two inwardly under the action of the guide cone that gradually approaches the middle of the folding cylinder, forcing side cloth two to deflect toward the inside of side cloth one, and the two folding marks will limit the position of the linear folds and guide it during the conveying process. At the same time, side cloth three containing magnetic strips / blocks will enter the limiting slot between the two folding marks for guidance during the conveying process. Side cloth three and side cloth two along the conveying direction of the folding marks will continue to move toward the inside of side cloth one, and at the same time, the linear fold between side cloth one and side cloth two will gradually approach each other along the conveying direction through the folding marks, until they come out from the tail of the folding cylinder, pass through the transition structure and enter the side cloth inlet of the folding frame without obstacle, completing the preliminary folding of the side cloth;

[0027] Step 3: When the edge cloth after the initial folding enters the folding frame, the edge cloth one and the edge cloth two continue to be conveyed along the conveying direction under the action of the protrusion one and the protrusion two respectively. At the same time, the protrusion will press the edge cloth one to the side of the edge cloth two, so that the edge cloth one and the edge cloth two are in contact and limitedly guided along the conveying direction. The top linear folds of the edge cloth one and the edge cloth two gradually approach the protrusion two along the length direction of the protrusion one until the projections of the top linear folds and the bottom linear folds of the edge cloth one and the edge cloth two on the horizontal plane coincide with each other, and the gauze is inserted into the inside of the opening of the folding frame until the side of the gauze is in contact with the edge cloth three containing the magnetic strip / block, thereby completing the final folding of the edge cloth;

[0028] Step 4: Sealing: After being transported by two sets of conveyor rollers without deviation, the ultrasonic welding wheel cooperates with the anvil at the bottom to ultrasonically weld the folded double-layer edge cloth, and finally complete the sealing process of the edge cloth.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] First, a double-layer edging structure is adopted, and edge cloth one is used to wrap edge cloth two and edge cloth three for holding magnetic strips / blocks. Finally, a folding piece is used for efficient folding. After folding, the ultrasonic welding wheel on it and the anvil at the bottom are used to complete the welding and sealing of the double-layer edging. Since a notch is set at the tail of the folding piece and an internal anti-deviation conveying roller is provided, the folded double-layer edge cloth is prevented from deviation and conveyed. Even under the interference of the ultrasonic welding wheel welding the double-layer edge cloth, there will be no deviation of linear creases, thus eliminating the wrinkles of the edge cloth and the subsequent leakage of seams.

[0031] Secondly, a new type of folding piece for double-layer edging is used. The folding part one of the folding piece is used to preliminarily fold the edge cloth two and the edge cloth three containing the magnetic strips / blocks toward the inner side of the edge cloth one, and gradually bring the two linear folds closer to each other. Finally, the folding part two is used to bring the two linear fold areas into contact with the gauze, and the side of the gauze will abut against the side of the edge cloth three. The anti-deviation conveyor roller can be used to convey the gauze and edge cloth in a straight manner, and the folding of the edge cloth is also completed. After folding, ultrasonic welding and edge sealing are completed, completing the automatic folding of the edge cloth and efficient and high-quality edge sealing processing after folding.

[0032] The innovations of the present invention lie in: 1) the structural design of the double-layer side cloth; 2) how to ensure that side cloths 2 and 3 in the double-layer side cloth are folded inward along the linear folds toward side cloth 1; 3) the linear folds after folding are aligned vertically and at the same time, side cloth 2 tightly wraps the internal magnetic strip; 4) how to ensure that side cloth 1 has a compensation function and the compensation amount is consistent along the length direction of the side cloth sealing, thereby eliminating the phenomenon of leaking seams when the magnetic screen door is in use; 5) after the linear folds are aligned vertically, nonlinear conveying interference is eliminated during welding between the ultrasonic welding wheel and the anvil, maintaining precise linear conveying, thereby ensuring neat sealing and excellent appearance quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of the overall structure of the folding and sealing mechanism of the present invention;

[0034] Figure 2 It is a schematic diagram of the overall structure of the folding cylinder of the folding and sealing mechanism of the present invention;

[0035] Figure 3 It is a left side view of the folding cylinder of the folding and sealing mechanism of the present invention;

[0036] Figure 4 Schematic diagram of the overall structure of the folding frame in the folding and sealing mechanism of the present invention;

[0037] Figure 5 This is a working diagram of the folding frame in the folding and sealing mechanism of the present invention when folding the edge cloth;

[0038] Figure 6 A top view of a folding frame in the folding and sealing mechanism of the present invention, viewed along an opening;

[0039] Figure 7 A bottom view of a folding frame in the folding and sealing mechanism of the present invention, viewed along an opening;

[0040] Figure 8 This is a schematic structural diagram of the double-layer edge cloth of the present invention before folding;

[0041] Figure 9 Schematic diagram of the overall structure of the cutting device of the present invention;

[0042] Figure 10 It is a schematic structural diagram of the cutting device of the present invention during clamping and conveying;

[0043] Figure 11 This is a schematic diagram of the structure of the cutting device of the present invention when clamping, conveying and cutting;

[0044] Figure 12 This is a partial enlarged view of the clamping, conveying and cutting position of the cutting device of the present invention;

[0045] Figure 13 is a cross-sectional view of the one-way rotation structure of the flexible clamping member of the present invention;

[0046] Figure 14 Schematic diagram of the internal structure of the cutting piece of the present invention;

[0047] Figure 15 Schematic diagram of the internal structure of the compensation component of the present invention;

[0048] Figure 16 A top view of the cutting device of the present invention during clamping and conveying;

[0049] Figure 17 This is a schematic diagram of the overall structure of the folding cylinder of the folding and sealing mechanism of the present invention with an adsorption structure;

[0050] Figure 18 Schematic diagram of the three-dimensional structure of the edge fabric of the present invention;

[0051] Figure 19 Schematic diagrams of the structure of the screen door after edge sealing of the present invention when open (upper figure) and closed (lower figure). DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0053] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0054] Example 1, as Figure 1 and Figure 8 As shown, a magnetic screen door edge pressing and sealing device includes edge cloth 500 and a folding and sealing mechanism;

[0055] like Figure 8 As shown, the side cloth 500 includes side cloth 1 501, side cloth 2 502, and side cloth 3 503. The connecting section of side cloth 1 501 and side cloth 2 502 is provided with a linear fold 504. Side cloth 3 503 is suitable for holding magnetic strips / blocks and is bonded or connected to the side of side cloth 2 502 facing away from side cloth 1 501 via sewing thread. When side cloth 2 502 is deflected toward the inside of side cloth 1 501, side cloth 2 502 and side cloth 1 501 can be easily folded along the linear fold 504. When the side cloth is sealed in the length direction, side cloth 3 503 holding the magnetic strips / blocks can be efficiently folded on the side holding the magnetic strips / blocks, as shown in FIG. Figure 18 As shown, the third edge fabric 503 is a bag structure, with the opening facing the sealing direction. The linear fold 504 is the non-epoxy layer area, and the rest of the edge fabrics are all epoxy layer areas.

[0056] like Figure 1 As shown, the folding and sealing mechanism includes a folding piece 600 suitable for folding the side cloth 2 502 and the side cloth 3 503 containing the magnetic strips / blocks inside the side cloth 1 501, and the top and bottom sides of the tail of the folding piece 600 are provided with notches 601, an anvil 603 is installed at the bottom notch 601, and an ultrasonic welding wheel 602 is installed at the top notch 601. The ultrasonic welding wheel 602 and the anvil 603 are suitable for welding and sealing the folded side cloth 500 and the gauze. The welding principle of the ultrasonic welding wheel 602 and the anvil 603 is the same as that of the mask welding machine.

[0057] like Figure 6 and Figure 7 As shown, anti-deviation conveying rollers 604 are installed on both the upper and lower sides of the tail of the folding member 600, and the conveying rollers 604 are symmetrical and tilted horizontal rollers.

[0058] The folding member 600 is provided with two groups of conveying rollers 604 , which are located at the front and rear sides of the notch 601 , respectively. The conveying rollers 604 at the front and rear sides are inclined in opposite directions.

[0059] The double-layer edge cloth will first be folded into the edge cloth one 501 by the folding part 600 and wrapped on the outside of the gauze. When the ultrasonic welding wheel 602 and the anvil 603 weld the double-layer edge, there will be interference in the conveying direction of the edge cloth. Through the action of the two sets of conveying rollers 604 set in the front and back, the folded double-layer edge cloth has a certain pulling force in the front and back, which has an anti-deviation effect, ensuring the horizontal and neat conveying of the double-layer edge and completing the high-quality edge pressing and sealing processing through ultrasonic welding.

[0060] Example 2: Based on the above example, the following improvements are made: Figure 1As shown, the folding member 600 includes: a folding portion 1 adapted to preliminarily fold the side cloth 1 501 and the side cloth 2 502 along the linear fold 504, the folding portion 1 folds the side cloth 2 502 and the side cloth 3 503 along the linear fold 504 toward the inside of the side cloth 1 501, and the folding portion 1 includes a folding cylinder 605, as shown in FIG. Figure 2 and Figure 3 As shown, the size of the side cloth inlet of the folding cylinder 605 is larger than the size of the side cloth outlet. A guide cone 606 is provided at the side cloth inlet of the folding cylinder 605, which bulges outward and gradually approaches the middle of the folding cylinder 605 along the side cloth conveying direction. The guide cone 606 is suitable for squeezing the side cloth 3 503 containing the magnetic strips / blocks inward along the side cloth conveying direction. The portion of the folding cylinder 605 corresponding to the side cloth 2 502 is gradually concave inward along the side cloth conveying direction to form a fold mark 607, which is suitable for adapting to the linear fold mark 504.

[0061] The folding part 2 is suitable for finally folding the edge cloth 1 501 and the edge cloth 2 502 along the outer periphery of the magnetic strip / block in the edge cloth 3 503. The folding part 2 includes a folding frame 608 arranged at the tail end of the folding cylinder 605. Figure 4 and Figure 5 As shown, an opening is provided on one side of the folding frame 608, the opening is suitable for being located on the same side as the guide cone 606 and the opening is suitable for the entry of the gauze and magnetic strips / blocks, the top of the opening is provided with a downwardly extending protrusion 1 609, and the bottom is provided with an upwardly extending protrusion 2 610, the protrusion 1 609 and the protrusion 2 610 are respectively suitable for guiding and positioning the two linear folds 504 of the side cloth 1 501 and the side cloth 2 502, the protrusion 1 609 gradually approaches the protrusion 2 610 along the conveying direction of the side cloth until it is located directly above the protrusion 2 610, wherein the folding frame 608 is provided with a material guide plate 611 on the side of the outlet end close to the folding cylinder 605 for positioning and conveying the side cloth 3 603 containing the magnetic strips / blocks, and the material guide plate 611 and the subsequently arranged guide wheel together convey the magnetic strips accurately.

[0062] like Figure 5 As shown, the notch 601 and the conveying roller 604 are arranged at the rear end of the folding frame 608 .

[0063] The folding cylinder 605 folds the side cloth 2 502 and the side cloth 3 503 along the linear fold 504 into the side cloth 1 501. When folding, the guide cone 606 first presses the side cloth 3 503 containing the magnetic strip / block into the side cloth 2 502 along the conveying direction of the side cloth. As the extrusion depth of the side cloth 3 503 into the side cloth 2 502 is continuously input, the side cloth 2 502 and the side cloth 1 501 are folded along the linear fold 504. The folded linear fold 504 is linearly conveyed along the folding mark 607, so that the two The two linear folds 504 gradually approach each other in the direction of approaching the folding frame 608, and the gauze is fed in before the two linear folds 504 overlap in horizontal plane projection so that its side is against the bottom end of the side of the edge cloth three 503. The linear folds 504 are used to transport it forward along the protrusion 1 609 and the protrusion 2 610. The two linear folds 504 will be gradually approached and finally enter the tail. After the folding is completed, the edge cloth will neatly wrap the side of the gauze, and perform horizontal linear welding and sealing processing through the ultrasonic welding wheel 602 and the anvil 603.

[0064] Example 3: Based on the above example, the following improvements are made: Figure 5 As shown, the top of the folding frame 608 is close to the side of the protrusion 609 and gradually approaches the bottom of the folding frame 608 along the conveying direction of the edge cloth. The top of the tail of the folding frame 608 is suitable for crimping the edge cloth 1 501 and the edge cloth 2 502 until the edge cloth 2 502 is wrapped around the outside of the magnetic strip / block.

[0065] A guide conveying structure suitable for the inner top edge cloth 501 and for positioning the inner magnetic strip / block is installed in the middle of the inner side of the folding frame 608 along the edge cloth conveying direction. The guide conveying structure includes a ridge arranged toward the opening position and a guide wheel facing the opening, such as Figure 6 and Figure 7 As shown, the width of the ridge at the edge cloth inlet of the folding frame 608 gradually increases along the conveying direction of the edge cloth. The guide wheel and the ridge are used to press the middle part of the edge cloth 1 501 to the middle part of the edge cloth 2 502, thereby ensuring the conveying direction and position of the edge cloth 3 503. At the same time, it can also ensure that there is excess part of the edge cloth 1 501 after the double-layer edge is welded and sealed. In the later use, it is ensured that there will be no gap between the two adsorbed gauze meshes after adsorption, achieving the effect of a seamless gauze door. Specifically, Figure 19 .

[0066] like Figure 3 As shown, the distance between the two fold marks 607 gradually decreases along the conveying direction of the edge cloth. A limiting notch 611 is arranged between the two fold marks 607. The limiting notch 611 is suitable for conveying the third edge cloth 503 containing the magnetic strips / blocks along the conveying direction of the edge cloth. The limiting notch 611 is suitable for continuously conveying the third edge cloth 503 into the second edge cloth 502, thereby completing the inner and outer wrapping of the first edge cloth 501 and the second edge cloth 502 along the linear fold 504.

[0067] The two folding marks 607 at the tail of the folding cylinder 605 are respectively adapted to the top and bottom of the side cloth inlet of the folding frame 608 through a transition structure, the inlet of the transition structure is adapted to the tail of the folding cylinder 605, and the outlet of the transition structure is adapted to the inlet of the folding frame 608. The protrusions 1 609 and 2 610 at the tail of the two folding marks 607 and the side cloth inlet of the folding frame 608 are suitable for unobstructed transportation of the initially folded side cloth 500 through the transition structure.

[0068] Example 4: Based on the above example, the following improvements are made: Figure 17 As shown, a suction structure 612 is installed on the outside of the folding cylinder 605 near the edge cloth inlet. The suction structure 612 includes an annular cavity with an air pipe connector installed. The overlapping area between the annular cavity and the folding cylinder 605 is covered with micropores for sucking the edge cloth 500. Several of the micropores are arranged at positions corresponding to the edge cloth 501 conveyed within the folding cylinder 605. An external air source is used to apply negative pressure to the edge cloth after it enters the folding cylinder 605. The negative pressure can be used to regularly deform the edge cloth 501 along the conveying direction.

[0069] A magnetic screen door production process, using the magnetic screen door edge pressing and sealing device according to claim 9, comprises the following steps:

[0070] Step 1: Place the side cloth 1 501, the side cloth 2 502, and the side cloth 3 503 containing the magnetic strips / blocks into the side cloth inlet of the folding cylinder 605. The side cloth 3 503 containing the magnetic strips / blocks is adapted to the guide cone 606. An adsorption structure 612 may be provided with an external negative pressure generator to adsorb the side cloth 1 501.

[0071] Step 2: The side cloth 1 501 and the side cloth 2 502 are transported along the conveying direction. The side cloth 3 503 containing the magnetic strip / block is squeezed inward by the guide cone 606 gradually approaching the middle of the folding cylinder 605, forcing the side cloth 2 502 to bend toward the inside of the side cloth 1 501. The two fold marks 607 will define the position of the linear fold 504 and guide it during the conveying process. At the same time, the side cloth 3 503 containing the magnetic strip / block will enter between the two fold marks 607. The limiting notch 611 guides the edge cloth 500 during transportation. The edge cloth 3 503 and the edge cloth 2 502 continue to move toward the inside of the edge cloth 1 501 along the conveying direction of the folding mark 607. At the same time, the linear fold 504 between the edge cloth 1 501 and the edge cloth 2 502 gradually approaches each other along the conveying direction through the folding mark 607 until they come out from the tail of the folding cylinder 605 and pass through the transition structure to enter the edge cloth inlet of the folding frame 608 without any obstacles, thus completing the preliminary folding of the edge cloth 500.

[0072] 609 , 610 , 620 , 630 , 640 , 650 , 660 , 670 , 680 , 690 , 700 , 710 , 680 , 690 , 680 , 690 , 710 , 680 , 690 , 680 , 690 , 710 , 680 , 690 , 680 , 690 , 710 , 680 , 690 , 680 , 690 , 710 , 680 , 690 , 680 , 690 , 710 , 680 , 690 , 680 , 690 , 710 , 680 , 690 , 680 , 690 , 710 , 680 , 690 , 680 , 690

[0073] Step 4: Sealing: After being transported by two sets of conveying rollers 604 without deviation, the ultrasonic welding wheel 602 cooperates with the anvil 603 at the bottom to ultrasonically weld the folded double-layer edge cloth 500, and finally completes the sealing process of the edge cloth 500.

[0074] Example 5: Based on the above example, the following improvements are made: Figures 10 to 16 As shown, before step 1, the process also includes continuously conveying the gauze mesh and the side cloth online and cutting them to a fixed length, and the cutting process adopts a cutting device.

[0075] The cutting device includes a clamping and cutting component 10 and a clamping and cutting component 20 that move synchronously and continuously transport the yarn mesh and the edge cloth online;

[0076] Both the first clamping and cutting assembly 10 and the second clamping and cutting assembly 20 include a conveying portion 30 and a clamping portion 40 mounted on the conveying portion 30. The clamping portion 40 is equipped with two flexible clamping members 41, which are suitable for flexibly clamping the gauze and selvedge fabric. The first clamping and cutting assembly 10 is equipped with a compensating member 11, while the second clamping and cutting assembly 20 is equipped with a cutting member 21 corresponding to the position of the compensating member 11. The compensating member 11 is suitable for externally tensioning the gauze and selvedge fabric clamped by the two flexible clamping members 41. The cutting member 21 is suitable for cutting the gauze and selvedge fabric tensioned externally at the compensating member 11.

[0077] The gauze is clamped and fixed by two flexible clamping parts 41 on the corresponding clamping parts 40 on the clamping and cutting component 1 10 and the clamping and cutting component 2 20. While the clamped gauze is brought close to each other, the gauze clamped by the two adjacent clamping parts 40 on the clamping and cutting component can be stretched and flattened. Wrinkles will appear when the clamped gauze is close to each other. At this time, the compensation part 11 between the two flexible clamping parts 41 is used to tension the outer top of the gauze at this location. Finally, the gauze stretched during the transportation process is accurately cut at the compensation part 11 through the cutting part, and the conveying component 30 will use it as the power source for the clamping and conveying component to convey the gauze.

[0078] The following improvements are made in the above-mentioned cutting device scheme: the two flexible clamping members 41 are arranged symmetrically, and the flexible clamping member 41 includes a rotating rod 411 fixedly installed on the clamping part 40, and a torsion spring 412 is installed at the rotation node of the rotating rod 411 and the clamping part 40. The free end of the rotating rod 411 is rotatably installed with a clamping body 413, and the two clamping bodies 413 are both clamping rollers. The two clamping bodies 413 and the corresponding rotating rods 411 are connected by a one-way rotation structure 415.

[0079] The rotating rod 411 and the clamping portion 40 utilize a torsion spring 1 412, ensuring that after the clamping bodies 413 on the corresponding two rotating rods 411 of the clamping and conveying assembly 10 and the clamping and conveying assembly 20 clamp the gauze, they gradually move toward the center of the clamping portion 40 to gather the gauze, thereby gradually tightening and leveling the gauze held by the clamping portion 40 and the preceding clamping portion 40 at that location. The one-way rotating structure 415 utilizes a one-way transmission structure with a ratchet and pawl, ensuring that when the compensating member 11 pushes outward on the gauze portions that have contracted and converged after clamping, they can only gather in one direction, toward the center of the clamping portion 40, preventing it from loosening even after cutting is completed.

[0080] Among them, the above-mentioned compensation part 11 adopts the following scheme: the compensation part 11 includes a vertical guide groove 111 arranged on the clamping part 40 of the clamping and cutting component 10 and a wedge block 112 arranged on the frame of the conveying part 30, a guide rod 113 is installed inside the vertical guide groove 111 and one end of the guide rod 113 is exposed on the outside of the clamping part 40, a connecting rod 114 is fixed on the guide rod 113 and is vertically slidably socketed on the inner side of the clamping part 40, a return spring 115 is sleeved on the outer side of the connecting rod 114, the bottom of the return spring 115 abuts against the inner side of the clamping part 40, the bottom end of the connecting rod 114 is exposed on the outside of the clamping part 40 and is located between the two flexible clamping parts 41, and a pressure rod 116 is fixed on the bottom of the connecting rod 114 (elastic telescopic rod), and a cutting seam 117 is installed on the pressure rod 116. After cutting, since connecting rod 1 414 is an elastic telescopic rod, it will inevitably lose the reaction force it received when the gauze was tensioned. As a result, connecting rod 1 414 resets and, under the action of its own elastic member, pushes pressing rod 116 toward cutting piece 21. When one end of guide rod 1 13 contacts wedge block 1 12, it gradually compresses return spring 1 15 along vertical guide groove 1 11 toward the side of cutting piece 21. Connecting rod 1 414 gradually pushes outward against the gauze, keeping it taut. This is the best cutting quality. After cutting, guide rod 1 13 disengages from wedge block 1 12 and quickly resets under the action of return spring 115.

[0081] The cutting piece 21 includes a vertical guide groove 211 arranged on the clamping part 40 of the clamping cutting component 20 and a wedge block 212 arranged on the frame of the conveying part 30. A guide rod 213 is installed inside the vertical guide groove 211, and one end of the guide rod 213 is exposed on the outside of the clamping part 40. A connecting rod 214 is fixed on the guide rod 213 and is vertically slidably inserted on the inner side of the clamping part 40. A return spring 215 is installed on the outer side of the connecting rod 214. The bottom of the return spring 215 abuts against the inner side of the clamping part 40. The top part of the connecting rod 214 is exposed on the outside of the clamping part 40 and is located between the two flexible clamping parts 41. A cutter 216 is fixed on the top of the connecting rod 214. Under the action of the conveying member 30, the second guide rod 213 will contact the second wedge block 212 and gradually compress the second return spring 215 along the second vertical guide groove 211, forcing the cutter 216 to move toward the cutting seam 117 to cut the tensioned mesh. After cutting, the second guide rod 213 will disengage from the second wedge block 212 and quickly return to its original position under the action of the second return spring 215. The cutter 216 can be replaced by an electric heating wire. Since the electric heating wire will quickly return to its original position under the action of the second return spring 215, it is possible to avoid the electric heating wire from contacting the cut electric heating wire again, thereby eliminating the impact on the cutting quality of the cutting seam caused by such contact. Before the cutter 216 moves in contact with the guide rod 213 and the wedge block 212, the pressure rod 116 reaches its maximum stroke after the guide rod 113 and the wedge block 1 112 come into contact. The cutter 216 will reset 0.1 to 0.5 seconds before the pressure rod 116 resets. The side wall of the wedge block 112 and the wedge block 2 212 away from the online end is vertically offset by 0.1 to 0.3 mm.

[0082] The conveying section 30 comprises two parallel conveyor belts, and the clamping section 40 comprises a connecting plate mounted longitudinally across the two conveyor belts. The assembly of the conveyor belts and connecting plate ensures the synchronous movement of the first clamping and cutting assembly 10 and the second clamping and cutting assembly 20. The clamping section 40 is a plate mounted longitudinally across the two conveyor belts.

[0083] The process of cutting the gauze and selvedge fabric by the cutting device is as follows:

[0084] S100: One end of the gauze net and the edge cloth is cut, trimmed and loaded according to the design size requirements, and a pair of rollers is installed at the loading end of the cutting equipment. The pair of rollers maintains a certain resistance at the loading end to ensure that the loaded gauze net and edge cloth will not show obvious curling / bending changes during the loading process. The clamping and cutting component 10 and the clamping and cutting component 2 20 clamp the gauze net and edge cloth through two conveying parts 30 and convey them to the cutting station. The flexible clamping part 41 close to the cutting station side will first clamp the gauze net and edge cloth and convey them to the side away from the cutting station. The flexible clamping members 41 on the side of the previous clamping part 40 away from the cutting station and the flexible clamping members 41 on the side of the current clamping part 40 close to the cutting station are reversely tensioned and leveled online. Then, the flexible clamping members 41 on the side away from the cutting station will clamp the gauze and the edge cloth again, separating them from the gauze and the edge cloth clamped by the flexible clamping members 41 close to the cutting station. At the same time, the flexible clamping members 41 on the side away from the cutting station will push the gauze and the edge cloth forward.

[0085] S200: After the gauze and edge cloth are clamped and transported to the cutting station, the positions of wedge block 112 and wedge block 212 correspond, and the two will simultaneously act on guide rod 113 to slide vertically along vertical guide groove 111 to compress return spring 115 and push pressure rod 116 outward through connecting rod 114 to push the gauze and edge cloth, and guide rod 213 to slide vertically along vertical guide groove 211 to compress return spring 215 and push cutter 216 outward through connecting rod 214 to accurately cut the gauze and edge cloth at the cutting seam 117. The gauze and edge cloth at this location are the gauze and edge cloth clamped between the flexible clamping part 41 on the side close to the cutting station and the flexible clamping part 41 on the side away from the cutting station in the two clamping parts 40 corresponding to the current position.

[0086] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The replacement may be a replacement of a portion of a structure, device, or method step, or it may be a complete technical solution. Any equivalent replacement or modification based on the technical solution and inventive concept of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A magnetic screen door edge sealing device, characterized by: It includes a side cloth (500) and a folding and sealing mechanism; The side cloth (500) comprises side cloth one (501), side cloth two (502), and side cloth three (503); a linear fold (504) is provided at the connecting section of side cloth one (501) and side cloth two (502); side cloth three (503) is suitable for holding magnetic strips / blocks and side cloth three (503) is bonded or connected to the side of side cloth two (502) facing away from side cloth one (501) via sewing thread; The folding and sealing mechanism comprises a folding piece (600) adapted to fold the second side cloth (502) and the third side cloth (503) containing the magnetic strips / blocks inside the first side cloth (501), the top and bottom sides of the tail of the folding piece (600) are both provided with notches (601), an anvil (603) is installed at the bottom notch (601), and an ultrasonic welding wheel (602) is installed at the top notch (601), and the ultrasonic welding wheel (602) and the anvil (603) are adapted to weld and seal the folded side cloth (500) and the gauze; Anti-deviation conveying rollers (604) are installed on both upper and lower sides of the tail of the folding member (600), and the conveying rollers (604) are symmetrical and tilted horizontal rollers; The folding member (600) comprises: A folding portion 1 is adapted to preliminarily fold the side cloth 1 (501) and the side cloth 2 (502) along a linear fold (504), the folding portion 1 comprising a folding cylinder (605), the side cloth inlet size of the folding cylinder (605) being larger than the side cloth outlet size, a guide cone (606) bulging outwards and gradually approaching the middle of the folding cylinder (605) along the side cloth conveying direction is provided at the side cloth inlet of the folding cylinder (605), the guide cone (606) being adapted to press the side cloth 3 (503) containing the magnetic strip / block inwards along the side cloth conveying direction of the side cloth 2 (502), the portion of the folding cylinder (605) corresponding to the side cloth 2 (502) being gradually recessed inwards along the side cloth conveying direction to form a folding mark (607), the folding mark (607) being adapted to be adapted to the linear fold (504); A folding portion 2 is adapted to perform final folding of the initially folded side cloth 1 (501) and side cloth 2 (502) along the periphery of the magnetic strip / block within the side cloth 3 (503), the folding portion 2 comprising a folding frame (608) disposed at the tail end of the folding cylinder (605), an opening being provided on one side of the folding frame (608), the opening being adapted to be located on the same side as the guide cone (606) and the opening being adapted for entry of the gauze and the magnetic strip / block, a protrusion 1 (609) extending downward being provided at the top of the opening, and a protrusion 2 (610) extending upward being provided at the bottom, the protrusion 1 (609) and the protrusion 2 (610) being adapted to guide and position the two linear folds (504) of the side cloth 1 (501) and the side cloth 2 (502), respectively, the protrusion 1 (609) gradually approaching the protrusion 2 (610) along the conveying direction of the side cloth until it is located directly above the protrusion 2 (610); The notch (601) and the conveying roller (604) are arranged on the folding frame (608).

2. The magnetic screen door edge sealing device according to claim 1, characterized in that: The folding member (600) is provided with two groups of conveying rollers (604), which are respectively located at the front side and the rear side of the notch (601), and the inclination directions of the front and rear conveying rollers (604) are opposite.

3. The magnetic screen door edge sealing device according to claim 2, characterized in that: The top of the folding frame (608) is close to the side of the protrusion 1 (609) and gradually approaches the bottom of the folding frame (608) along the conveying direction of the edge cloth. The top of the tail of the folding frame (608) is suitable for pressing the edge cloth 1 (501) and the edge cloth 2 (502) until the edge cloth 2 (502) is wrapped around the outside of the magnetic strip / block.

4. The magnetic screen door edge sealing device according to claim 3, characterized in that: A guide conveying structure suitable for inner top side cloth 1 (501) and for positioning the internal magnetic strip / block is installed in the middle of the inner side of the folding frame (608) along the side cloth conveying direction. The guide conveying structure includes a ridge arranged toward the opening position and a guide wheel facing the opening.

5. The magnetic screen door edge sealing device according to claim 4, characterized in that: The distance between the two folding marks (607) gradually decreases along the conveying direction of the edge cloth, and a limiting notch (611) is arranged between the two folding marks (607). The limiting notch (611) is suitable for conveying the edge cloth three (503) containing the magnetic strips / blocks along the conveying direction of the edge cloth.

6. The magnetic screen door edge sealing device according to claim 5, characterized in that: The two folding marks (607) at the tail of the folding cylinder (605) are respectively adapted to the top and bottom of the edge cloth inlet of the folding frame (608) through a transition structure, the inlet of the transition structure is adapted to the tail of the folding cylinder (605), and the outlet of the transition structure is adapted to the inlet of the folding frame (608). The protrusions 1 (609) and 2 (610) at the tail of the two folding marks (607) and the edge cloth inlet of the folding frame (608) are suitable for unobstructed conveying of the edge cloth (500) after preliminary folding through the transition structure.

7. The magnetic screen door edge sealing device according to claim 6, characterized in that: An adsorption structure (612) is installed on the outer side of the folding cylinder (605) near the inlet end of the edge cloth. The adsorption structure (612) includes an annular cavity. A trachea joint is installed on the annular cavity. The overlapping area of ​​the annular cavity and the folding cylinder (605) is distributed with micropores for adsorbing the edge cloth (500). A plurality of the micropores are arranged at positions corresponding to the edge cloth 1 (501) transported inside the folding cylinder (605); The width of the ridge located at the edge cloth inlet of the folding frame (608) gradually increases along the edge cloth conveying direction.

8. A magnetic screen door production process, using the magnetic screen door edge pressing and sealing device according to claim 7, characterized in that: Here are the steps: Step 1: Place the side cloth 1 (501), the side cloth 2 (502), and the side cloth 3 (503) containing the magnetic strips / blocks into the side cloth inlet of the folding cylinder (605), and fit the side cloth 3 (503) containing the magnetic strips / blocks into the guide cone (606); Step 2: The side cloth 1 (501) and the side cloth 2 (502) are transported along the transport direction. The side cloth 3 (503) containing the magnetic strip / block is pressed inward by the guide cone (606) gradually approaching the middle of the folding cylinder (605), forcing the side cloth 2 (502) to bend toward the inside of the side cloth 1 (501). The two folding marks (607) will limit the position of the linear fold (504) and guide it during the transport process. At the same time, the side cloth 3 (503) containing the magnetic strip / block will enter between the two folding marks (607). The limiting notch (611) is used for guidance during the conveying process, and the side cloth three (503) and the side cloth two (502) along the conveying direction of the folding mark (607) will continue to move toward the inside of the side cloth one (501), and at the same time, the linear fold (504) between the side cloth one (501) and the side cloth two (502) will gradually approach along the conveying direction through the folding mark (607), until they come out from the tail of the folding cylinder (605) and enter the side cloth inlet of the folding frame (608) without obstacles through the transition structure, completing the initial folding of the side cloth (500); Step 3: When the edge cloth (500) after preliminary folding enters the folding frame (608), the edge cloth 1 (501) and the edge cloth 2 (502) continue to be transported along the conveying direction under the action of the protrusion 1 (609) and the protrusion 2 (610), respectively. At the same time, the protrusion will press the edge cloth 1 (501) toward the side of the edge cloth 2 (502), so that the edge cloth 1 (501) and the edge cloth 2 (502) contact and are limitedly guided along the conveying direction. The edge cloth 1 (501) and the edge cloth 2 (502) The top linear fold (504) of the edge cloth (501) and the edge cloth (502) are gradually approached to the second protrusion (610) along the length direction of the protrusion (609) until the top linear fold (504) and the bottom linear fold (504) of the edge cloth (501) and the edge cloth (502) are overlapped in the horizontal plane, and the gauze is inserted into the opening of the edge cloth inlet of the folding frame (608) from the inside until the side of the gauze is attached to the edge cloth (503) containing the magnetic strip / block, thereby completing the final folding of the edge cloth (500); Step 4: Sealing: After being transported by two sets of conveying rollers (604) without deviation, the ultrasonic welding wheel (602) cooperates with the anvil (603) at the bottom to ultrasonically weld the folded double-layer edge cloth (500), and finally complete the sealing process of the edge cloth (500).

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