Ultrasonic edge cutting and sealing apparatus for polyester mesh

Abstract

The application relates to polyester net ultrasonic edge sealing equipment and relates to the polyester net processing technical field, which comprises a re-sealing mechanism, the re-sealing mechanism comprises relatively rotatable hot-pressing edge sealing protrusions and matched edge sealing protrusions, and a pressing groove for polyester net passing is formed between the adjacent hot-pressing edge sealing protrusions and the matched edge sealing protrusions. According to the application, the polyester net passes through the pressing groove formed by the hot-pressing edge sealing protrusions and the matched edge sealing protrusions, the polyester net is not in contact with the hot-pressing edge sealing protrusions and the matched edge sealing protrusions at the moment, so the polyester net receives heat from the hot-pressing edge sealing protrusions and the matched edge sealing protrusions, edge sealing treatment of the edge position of the polyester net is realized, and the edge position of the polyester net can be limited under the action of the hot-pressing edge sealing protrusions and the matched edge sealing protrusions, so that the problem of large edge curling of the polyester net and the influence on the shape of the polyester net are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of polyester net processing, in particular to a polyester net ultrasonic edge cutting and sealing device. BACKGROUND

[0002] The ultrasonic edge sealing device is a mechanical device for lace processing by using ultrasonic technology. The high-frequency vibration of the ultrasonic wave is applied to the edge position of the material by hot melting or pressure connection, so as to cut and seal the edge position of the polyester net material.

[0003] For example, in the patent document with the application number 201710493906.5, an ultrasonic edge cutting and slitting process for netting is disclosed, and specifically disclosed is a process relying on ultrasonic edge cutting to solve the problem of rough cutting of the netting, which is prone to burrs and dregs, and to improve the efficiency of edge cutting and slitting.

[0004] In the above technical solution, when the ultrasonic edge sealing device is used to cut and seal the edge position of the polyester net, the edge position of the polyester net is prone to slight rolling during cutting because the polyester net is in a relatively tight state. Subsequently, when the ultrasonic edge sealing device seals the edge position, the sealing of the edge position will be unstable because the edge position is sealed after rolling. In some places, the sealing may not be performed due to excessive rolling, which requires rework on the position, affecting the production efficiency of the polyester net and increasing the production cost of the polyester net. SUMMARY

[0005] The present application provides an ultrasonic edge cutting and sealing device for polyester net.

[0006] The present application solves the problem that the edge position of the polyester net is prone to rolling during cutting and sealing by the ultrasonic edge sealing device, which affects the sealing effect of the polyester net and the production efficiency of the polyester net.

[0007] The present application can be implemented by the following technical solution: an ultrasonic edge cutting and sealing device for polyester net, comprising a support device, an ultrasonic cutting and sealing mechanism for cutting the polyester net is arranged on the support device, a re-sealing mechanism for sealing the cutting position of the polyester net is arranged on the side of the ultrasonic cutting and sealing mechanism, the re-sealing mechanism comprises a hot-press sealing protrusion and a matching sealing protrusion which can rotate relative to each other, and a pressing groove for the polyester net to pass through is formed between adjacent hot-press sealing protrusions and matching sealing protrusions.

[0008] Further technical improvements of the present application are that a plurality of groups of upper hot-press plates are uniformly arranged on the side of the hot-press sealing protrusion, and a plurality of groups of lower hot-press plates are uniformly arranged on the side of the matching sealing protrusion.

[0009] Further technical improvement of the present application is that the hot-pressing limiting ring is fixed on the side of the hot-pressing edge protrusion, the matching limiting ring is fixed on the side of the matching edge protrusion, the size of the hot-pressing limiting ring is larger than that of the hot-pressing edge protrusion, the size of the matching limiting ring is smaller than that of the matching edge protrusion, and the hot-pressing limiting ring and the matching limiting ring are matched.

[0010] Further technical improvement of the present application is that the side hot-pressing plate for edge sealing of the polyester net side is fixed on the side of the hot-pressing limiting ring, and the side hot-pressing plate is annular.

[0011] Further technical improvement of the present application is that the hot-pressing edge protrusion is fixedly installed on the rotating support sleeve, the rotating support sleeve is rotatably connected to the moving slider through the support frame, the moving slider is installed on the output end of the moving cylinder, the moving cylinder is fixedly installed on the support frame, and the matching edge protrusion and the support frame are rotatably connected.

[0012] Further technical improvement of the present application is that the hot-pressing edge protrusion and the matching edge protrusion are provided with three groups, the re-sealing mechanism includes a first compression roller assembly, a second compression roller assembly and a third compression roller assembly, the first compression roller assembly, the second compression roller assembly and the third compression roller assembly are sequentially located at the output end of the ultrasonic cutting and edge sealing mechanism, and the distance between the first compression roller assembly and the edge position of the polyester net is greater than the distance between the second compression roller assembly and the edge position of the polyester net, and the distance between the third compression roller assembly and the edge position of the polyester net is sequentially smaller.

[0013] Further technical improvement of the present application is that the hot-pressing edge protrusion on the first compression roller assembly is in a cylindrical shape, the hot-pressing edge protrusion on the second compression roller assembly is in a circular truncated cone shape, the diameter of the bottom surface of the circular truncated cone shape hot-pressing edge protrusion close to the hot-pressing limiting ring is greater than the diameter of the bottom of the circular truncated cone shape hot-pressing edge protrusion away from the hot-pressing limiting ring, the hot-pressing edge protrusion on the third compression roller assembly is in a circular truncated cone shape, and the diameter of the bottom surface of the circular truncated cone shape hot-pressing edge protrusion close to the hot-pressing limiting ring is smaller than the diameter of the bottom of the circular truncated cone shape hot-pressing edge protrusion away from the hot-pressing limiting ring.

[0014] Further technical improvement of the present application is that the support device includes a longitudinal movement mechanism for controlling the longitudinal height adjustment of the ultrasonic cutting and edge sealing mechanism, and a transverse movement mechanism for controlling the distance between the ultrasonic cutting and edge sealing mechanism and the edge position of the polyester net, and the transverse movement mechanism is located at the output end of the longitudinal movement mechanism.

[0015] Further technical improvement of the present application is that the longitudinal movement mechanism includes a telescopic rod, a screw rod assembly is installed at the output end of the telescopic rod, and a transverse sliding rod is arranged at the output end of the screw rod assembly.

[0016] Further technical improvements of the present application are as follows: the transverse moving mechanism comprises a longitudinal rod, the longitudinal rod is fixedly connected with the transverse sliding rod, the transverse sliding rod is slidingly arranged on the transverse sliding block, the transverse sliding block is slidingly connected with the longitudinal sliding rod, and the longitudinal sliding rod is installed on the base of the telescopic rod.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] 1、The re-sealing mechanism is installed on the side of the ultrasonic sealing mechanism, which seals the edge position of the polyester net missed by the ultrasonic sealing mechanism, ensures that the obtained polyester net is sealed, and guarantees the production quality of the polyester net.

[0019] 2、The size of the heat pressing limiting ring is larger than that of the heat pressing sealing protrusion, and the size of the matching limiting ring is smaller than that of the matching sealing protrusion, so that the edge position of the polyester net can be limited on the side of the pressure groove to avoid the polyester net from passing out from the other side of the pressure groove.

[0020] 3、The first, second and third pressing roller assemblies are adopted to first pass the polyester net through the first pressing roller assembly for sealing and limiting, avoid large size of the edge of the polyester net, when the polyester net reaches the position of the second pressing roller assembly, the heat pressing sealing protrusion is used to heat and maintain the edge position of the polyester net, and gradually approach the edge position of the polyester net to gradually make the large size of the edge contact the upper surface of the heat pressing sealing protrusion for pressing and preliminary control of the size of the edge, and then pass through the third pressing roller assembly to control the sealing position, so that the width of the sealing is limited on the width of the heat pressing sealing protrusion, thereby guaranteeing the quality of the sealing.

[0021] 4、The application controls the transverse position and longitudinal position of the ultrasonic edge sealing mechanism by adopting a supporting device, that is, by adopting a transverse moving mechanism for controlling the distance of the edge position of the polyester net and the ultrasonic edge sealing mechanism, and a longitudinal moving mechanism for controlling the longitudinal height adjustment of the ultrasonic edge sealing mechanism, so as to be suitable for different sizes of polyester nets, thereby being suitable for the production of polyester nets of various sizes, ensuring the production application scene, improving the production efficiency of the polyester net, and reducing the production cost of the polyester net without changing the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to facilitate the understanding of those skilled in the art, the present application will be further described below in conjunction with the drawings.

[0023] Figure 1 The first pressure roller assembly structure schematic diagram of the present application;

[0024] Figure 2 The first pressure roller assembly structure schematic diagram of the present application; Figure 1 The partial enlarged view of A in the first pressure roller assembly structure schematic diagram of the present application;

[0025] Figure 3 The edge sealing mechanism schematic diagram of the present application;

[0026] Figure 4 The second pressure roller assembly structure schematic diagram of the present application;

[0027] Figure 5 The second pressure roller assembly structure schematic diagram of the present application; Figure 4 The partial enlarged view of B in the second pressure roller assembly structure schematic diagram of the present application;

[0028] Figure 6 The third pressure roller assembly structure schematic diagram of the present application;

[0029] Figure 7 The third pressure roller assembly structure schematic diagram of the present application; Figure 6 The partial enlarged view of C in the third pressure roller assembly structure schematic diagram of the present application;

[0030] Figure 8 The supporting mechanism schematic diagram of the present application.

[0031] In the figure: 1, base; 2, telescopic rod; 3, transverse sliding block; 4, fixed mounting seat; 5, ultrasonic cutting and sealing edge mechanism; 6, pressing roller; 7, top mounting seat; 8, longitudinal rod; 9, transverse sliding rod; 10, longitudinal sliding block; 11, longitudinal sliding rod; 12, first pressing roller assembly; 1201, bracket; 1202, moving air cylinder; 1203, moving groove; 1204, moving sliding block; 1205, moving pivot; 1206, hot pressing limiting ring; 1207, hot pressing sealing edge protrusion; 1208, rotating support sleeve; 1209, matching sealing edge protrusion; 1210, bottom rotating sleeve; 1211, matching limiting ring; 1212, fixed pivot; 1213, side hot pressing plate; 1214, upper hot pressing plate; 1215, pressing groove; 1216, lower hot pressing plate; 1217, sliding rail; 1218, limiting base; 1219, first hot pressing inclined plate; 1220, second hot pressing inclined plate; 13, second pressing roller assembly; 14, third pressing roller assembly. DETAILED DESCRIPTION

[0032] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined purposes, the specific embodiments, structures, features and effects according to the present application will be described in detail below in combination with the drawings and preferred embodiments.

[0033] Please refer to Figures 1-8 As shown in the figure, an ultrasonic cutting and sealing edge device for polyester net includes a supporting mechanism, an ultrasonic cutting and sealing edge mechanism 5 and a resealing mechanism. Specifically, the ultrasonic cutting and sealing edge mechanism 5 is installed on the supporting mechanism, and then the resealing mechanism is installed on the ultrasonic cutting and sealing edge mechanism 5. The resealing mechanism is used to reseal the polyester net preliminarily cut and sealed by the ultrasonic cutting and sealing edge mechanism 5.

[0034] The supporting mechanism is used to support the ultrasonic cutting and sealing edge mechanism 5 and the resealing mechanism, and can also adaptively adjust the positions of the ultrasonic cutting and sealing edge mechanism 5 and the resealing mechanism. In this way, the position of the polyester net processing can be adjusted according to the height and width of the polyester net, so that a polyester net with more accurate dimensions can be obtained.

[0035] Specifically, the supporting mechanism includes a transverse moving assembly and a longitudinal moving assembly. The longitudinal moving assembly includes a base 1, a longitudinal sliding rod 11 fixed on the base 1, and a longitudinal sliding block 10 slidingly arranged on the longitudinal sliding rod 11. The longitudinal sliding block 10 is connected with the transverse moving assembly. A telescopic rod 2 is fixed on the base 1, and the end of the telescopic rod 2 is provided with the transverse moving assembly.

[0036] The height of the transverse moving assembly is controlled by the starting of the telescopic rod 2, which is one of a hydraulic cylinder, an electric telescopic rod, a moving screw rod assembly, etc. in the present application, for realizing the height adjustment of the transverse moving assembly, so when the telescopic rod 2 is started, the height of the transverse moving assembly will also be adjusted, at this time, the longitudinal sliding block 10 slides longitudinally on the longitudinal slide rod 11, realizing the sliding limiting of the transverse moving assembly.

[0037] As a further embodiment of the present application, the transverse moving assembly comprises a transverse slide rod 9, wherein the transverse slide rod 9 is slidably provided with a transverse sliding block 3, wherein the transverse sliding block 3 and the side of the longitudinal sliding block 10 are fixedly connected, and the fixed mounting seat 4 is fixedly installed on the transverse slide rod 9, wherein the fixed mounting seat 4 is fixedly connected through the longitudinal rod 8 and the top mounting seat 7, and the screw rod assembly is installed at the output end of the telescopic rod 2, wherein the fixed mounting seat 4 is installed at the output end of the screw rod assembly, that is, by starting the screw rod assembly, the transverse position of the fixed mounting seat 4 is controlled, so as to control the movement of the transverse slide rod 9 on the transverse sliding block 3, thereby being able to adjust the transverse position of the top mounting seat 7.

[0038] Specifically, by starting the screw rod assembly, the movement of the fixed mounting seat 4 is controlled, so as to push the transverse slide rod 9 to move transversely, so that the transverse slide rod 9 moves inside the transverse sliding block 3, thereby being able to adjust the transverse position of the top mounting seat 7, so as to control the transverse position of the ultrasonic edge sealing mechanism 5 and the re-sealing mechanism, so as to adapt to different sizes of polyester net for edge sealing.

[0039] The ultrasonic edge sealing mechanism 5 is fixedly installed on the top mounting seat 7, and the lower pressing roller 6 is arranged at the side of the ultrasonic edge sealing mechanism 5, which is used to press the edge position of the polyester net after being cut and sealed by the ultrasonic edge sealing mechanism 5, so that the edge position of the polyester net is reduced in the range of the edge.

[0040] The re-sealing mechanism comprises a first pressing roller assembly 12, a second pressing roller assembly 13 and a third pressing roller assembly 14, wherein the first pressing roller assembly 12, the second pressing roller assembly 13 and the third pressing roller assembly 14 are all located at the output end of the lower pressing roller 6, and the edge position of the polyester net output by the lower pressing roller 6 is re-sealed, and in the present application, three groups of pressing roller assemblies are adopted, so that the edge position of the polyester net can be accurately sealed in sequence.

[0041] Specifically, the support structures of the first pressing roller assembly 12, the second pressing roller assembly 13 and the third pressing roller assembly 14 are the same, and the first pressing roller assembly 12 is taken as an example.

[0042] In the present application, the first compression roller assembly 12 comprises a bottom rotating sleeve 1210 and a rotating support sleeve 1208, wherein the bottom rotating sleeve 1210 is rotatably mounted on the support 1201, and the rotating support sleeve 1208 is rotatably connected with the moving slider 1204, and the moving slider 1204 is slidably connected with the support 1201 through the moving cylinder 1202.

[0043] The longitudinal movement of the rotating support sleeve 1208 is controlled by the action of the moving cylinder 1202, so that the rotating support sleeve 1208 moves towards the position of the bottom rotating sleeve 1210, thereby realizing the compression of the edge position of the polyester net, and in the process of compression, the edge position of the polyester net is resealed by the sealing device provided on the rotating support sleeve 1208 and the bottom rotating sleeve 1210, thereby ensuring the sealing accuracy of the edge position of the polyester net.

[0044] That is, the rotating support sleeve 1208 is fixedly mounted on the moving shaft 1205, the moving shaft 1205 is rotatably mounted on the moving slider 1204 through the connecting support, a moving groove 1203 is formed on the support 1201, the moving slider 1204 is slidably connected with the moving groove 1203, and the moving cylinder 1202 is fixedly arranged on the side of the moving slider 1204, wherein the other end of the moving cylinder 1202 is mounted on the bottom of the moving groove 1203.

[0045] The rotating support sleeve 1208 is rotated, and the rotating support sleeve 1208 is lowered by the moving cylinder 1202. In the present application, the moving shaft 1205 and the moving slider 1204 are relatively rotated, which is used to reduce the scratches caused by the friction of the polyester net on the rotating support sleeve 1208, avoid the protrusions of impurities on the rotating support sleeve 1208, and the like, so that when the sliding friction of the polyester net becomes larger, the rotating support sleeve 1208 is rotated to avoid the interference of impurities on the polyester net. Subsequently, the rotation of the rotating support sleeve 1208 is recognized to determine whether there are impurities that damage the polyester net on the rotating support sleeve 1208.

[0046] The bottom rotating sleeve 1210 is fixedly mounted on the fixed shaft 1212, wherein the fixed shaft 1212 is rotatably connected with the support 1201. In this process, the bottom rotating sleeve 1210 and the rotating support sleeve 1208 can be rotated respectively, so that when there are impurities on the bottom rotating sleeve 1210, the impurities will contact the polyester net, and after the contact, the bottom rotating sleeve 1210 will be rotated, thereby avoiding the impurities from contacting the polyester net and causing damage to the polyester net.

[0047] In order to realize the edge sealing treatment of the polyester net edge position, the hot pressing sealing convex 1207 is fixed on the rotating support sleeve 1208, the matching sealing convex 1209 is arranged on the bottom rotating sleeve 1210, the position of the matching sealing convex 1209 and the hot pressing sealing convex 1207 matches, and the hot sealing edge equipment is arranged on the outer ring of the hot pressing sealing convex 1207 and the matching sealing convex 1209 respectively, which is used for the edge sealing treatment of the polyester net, the hot pressing limiting ring 1206 is fixed on the side of the hot pressing sealing convex 1207, and the matching limiting ring 1211 is fixed on the side of the matching sealing convex 1209, wherein the size of the hot pressing limiting ring 1206 is greater than that of the hot pressing sealing convex 1207, and the size of the matching limiting ring 1211 is less than that of the matching sealing convex 1209, and the position of the hot pressing limiting ring 1206 and the matching limiting ring 1211 matches, and the hot sealing edge equipment is arranged on the side of the hot pressing limiting ring 1206 facing the hot pressing sealing convex 1207, so that the accurate edge sealing treatment of the polyester net can be realized.

[0048] A plurality of groups of upper hot pressing plates 1214 are uniformly fixed on the outer ring of the hot pressing sealing convex 1207, a plurality of groups of lower hot pressing plates 1216 are uniformly fixed on the outer ring of the matching sealing convex 1209, and the side hot pressing plate 1213 is fixed on the side of the hot pressing limiting ring 1206 facing the hot pressing sealing convex 1207, wherein the side hot pressing plate 1213 is annular and is used for the edge sealing treatment of the polyester net.

[0049] In use, the polyester net passes through the pressing groove 1215 formed by the hot pressing sealing convex 1207 and the matching sealing convex 1209, at this time, under the control of the moving cylinder 1202, the polyester net does not contact the upper hot pressing plate 1214, the lower hot pressing plate 1216 and the side hot pressing plate 1213, so that the polyester net only passes through the inside of the pressing groove 1215, and the polyester net edge position is preliminarily heated by the hot pressing environment provided by the upper hot pressing plate 1214, the lower hot pressing plate 1216 and the side hot pressing plate 1213, at this time, the edge position of the polyester net will be rolled, but under the limiting action of the pressing groove 1215, the size of the polyester net edge position rolling is controlled, at this time, the polyester net edge position with a certain rolling enters the position of the second pressing roller assembly 13.

[0050] Wherein the second compression roller assembly 13 is closer to the polyester web than the first compression roller assembly 12, and the second compression roller assembly 13 changes the original heat sealing protrusion 1207 from a cylindrical shape to a truncated cone shape, so the upper heat plate 1214 is replaced by the first heat sealing inclined plate 1219, that is, the second compression roller assembly 13 is used to guide the polyester web, and the edge of the polyester web is curled when it moves out of the first compression roller assembly 12, so the edge of the polyester web is curled in different arcs, and the heat sealing protrusion 1207 gradually approaches the polyester web until the curled edge of the polyester web is suitable for the first compression roller assembly 12, and the first heat sealing inclined plate 1219 is used to heat the curled edge of the polyester web.

[0051] Wherein the third compression roller assembly 14 is closer to the polyester web than the second compression roller assembly 13, and the third compression roller assembly 14 reverses the original heat sealing protrusion 1207 from a truncated cone shape, and the shape of the compression groove 1215 of the third compression roller assembly 14 is symmetrical with the shape of the compression groove 1215 of the second compression roller assembly 13, and the edge of the polyester web is sealed from the inside of the compression groove 1215, and the compression groove 1215 limits the edge of the polyester web.

[0052] In this application, the heat of the heat plate inside the first compression roller assembly 12, the second compression roller assembly 13 and the third compression roller assembly 14 gradually decreases, the first compression roller assembly 12 is used to heat the edge of the polyester web, the second compression roller assembly 13 is used to heat the edge of the polyester web, and the third compression roller assembly 14 is used to limit the width of the curled edge of the polyester web, that is, the curled edge can only be formed inside the compression groove 1215 of the third compression roller assembly 14.

[0053] Through the use of three-layer sealing equipment, the accuracy of the edge sealing of the polyester web can be ensured, and the cost of subsequent sealing treatment can be avoided, and the three-layer sealing equipment can be used to seal the edge of the polyester web once, twice and three times, respectively, to avoid the problem of large curled edge size and poor sealing of the polyester web.

[0054] In use, first need to adjust the position of the ultrasonic edge sealing mechanism 5 according to the position of the polyester net, in this application, the height of the transverse sliding rod 9 is controlled by the activation of the telescopic rod 2, at this time the longitudinal sliding block 10 slides on the longitudinal sliding rod 11 to control the height of the ultrasonic edge sealing mechanism 5, then the transverse movement of the transverse sliding rod 9 on the transverse sliding block 3 is controlled by the activation of the lead screw assembly, so as to control the transverse position of the ultrasonic edge sealing mechanism 5, the polyester net passes through the ultrasonic edge sealing mechanism 5, so that the ultrasonic edge sealing mechanism 5 cuts the polyester net, and due to the cutting performance of the ultrasonic edge sealing mechanism 5, the polyester net can be preliminarily edge sealed, at this time the polyester net is pressed by the lower pressing roller 6, so that the polyester net edge after cutting and edge sealing is relatively flush into the position of the first pressing roller assembly 12.

[0055] In this process, first, the moving sliding block 1204 is controlled to slide in the moving groove 1203 by the moving cylinder 1202, so as to control the relative height of the rotating support sleeve 1208 and the bottom rotating sleeve 1210, at this time the heat pressing limiting ring 1206 is downwardly matched with the limiting ring 1211, at this time the width of the pressing groove 1215 is controlled according to the thickness of the polyester net, leaving a distance that can make the polyester net edge position be heat sealed and the polyester net edge be converged;

[0056] That is, the polyester net first passes through the first pressing roller assembly 12, at this time the polyester net passes through the inside of the pressing groove 1215 of the first pressing roller assembly 12, the polyester net does not contact the upper heat pressing plate 1214 and the lower heat pressing plate 1216, and the heat provided by the upper heat pressing plate 1214, the lower heat pressing plate 1216 and the side heat pressing plate 1213 is used to heat seal the edge position of the polyester net, at this time a little edge curl is formed at the edge position of the polyester net, then the polyester net passes through the position of the second pressing roller assembly 13, so that the polyester net is heat pressed by the first heat pressing inclined plate 1219, at this time the heat provided by the first heat pressing inclined plate 1219 is small, only enough to make the edge curl have a certain heat, then the polyester net is moved into the pressing groove 1215 of the third pressing roller assembly 14, and the edge curl is limited and flattened by the shape of the pressing groove 1215 of the third pressing roller assembly 14, so as to reduce the formation of the edge curl of the polyester net edge position, and at the same time, the polyester net edge position can be fully edge sealed by the action of the first pressing roller assembly 12 and the second pressing roller assembly 13.

[0057] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not deviate from the technical solution of the present application. Any modification, change, equivalent change and modification of the above embodiments made according to the technical essence of the present application still belong to the scope of the technical solution of the present application.

Claims

1. An ultrasonic cutting and sealing apparatus for polyester web, comprising a support apparatus, on which an ultrasonic cutting and sealing mechanism (5) for cutting the polyester web is arranged, characterized in that: The ultrasonic cutting and edge sealing mechanism (5) is provided with a re-sealing mechanism for sealing the cutting position of the polyester net, the re-sealing mechanism comprises a hot-pressing sealing protrusion (1207) and a matching sealing protrusion (1209) which can rotate relative to each other, and a pressing groove (1215) for the polyester net to pass through is formed between the hot-pressing sealing protrusion (1207) and the matching sealing protrusion (1209). The hot-pressing sealing protrusion (1207) and the matching sealing protrusion (1209) are provided with three groups, and the re-sealing mechanism comprises a first pressing roller assembly (12), a second pressing roller assembly (13) and a third pressing roller assembly (14), the first pressing roller assembly (12), the second pressing roller assembly (13) and the third pressing roller assembly (14) are sequentially located at the output end of the ultrasonic cutting and edge sealing mechanism (5), and the distance between the first pressing roller assembly (12) and the edge position of the polyester net is greater than the distance between the second pressing roller assembly (13) and the edge position of the polyester net, and the distance between the third pressing roller assembly (14) and the edge position of the polyester net is sequentially smaller. The hot-pressing sealing protrusion (1207) on the first pressing roller assembly (12) is in a cylindrical shape, the hot-pressing sealing protrusion (1207) on the second pressing roller assembly (13) is in a circular truncated cone shape, and the diameter of the bottom surface of the side of the circular truncated cone-shaped hot-pressing sealing protrusion (1207) close to the hot-pressing limiting ring (1206) is greater than the diameter of the bottom of the side of the circular truncated cone-shaped hot-pressing sealing protrusion (1207) away from the hot-pressing limiting ring (1206), and the hot-pressing sealing protrusion (1207) on the third pressing roller assembly (14) is in a circular truncated cone shape, and the diameter of the bottom surface of the side of the circular truncated cone-shaped hot-pressing sealing protrusion (1207) close to the hot-pressing limiting ring (1206) is smaller than the diameter of the bottom of the side of the circular truncated cone-shaped hot-pressing sealing protrusion (1207) away from the hot-pressing limiting ring (1206).

2. The apparatus of claim 1, wherein, The hot-pressing sealing protrusion (1207) is uniformly provided with a plurality of groups of upper hot-pressing plates (1214) on the side, and the matching sealing protrusion (1209) is uniformly provided with a plurality of groups of lower hot-pressing plates (1216) on the side.

3. The apparatus of claim 1, wherein, The hot-pressing limiting ring (1206) is fixed on the side of the hot-pressing sealing protrusion (1207), the matching limiting ring (1211) is fixed on the side of the matching sealing protrusion (1209), the size of the hot-pressing limiting ring (1206) is greater than the size of the hot-pressing sealing protrusion (1207), the size of the matching limiting ring (1211) is smaller than the size of the matching sealing protrusion (1209), and the hot-pressing limiting ring (1206) and the matching limiting ring (1211) cooperate.

4. The apparatus of claim 3, wherein, The hot-pressing limiting ring (1206) is fixed with a side hot-pressing plate (1213) for sealing the side of the polyester net, and the side hot-pressing plate (1213) is in an annular shape.

5. The apparatus of claim 1 wherein, The hot-pressing edge sealing protrusion (1207) is fixedly installed on a rotating support sleeve (1208), the rotating support sleeve (1208) is rotatably connected to a moving slider (1204) through a support frame, the moving slider (1204) is installed on an output end of a moving cylinder (1202), the moving cylinder (1202) is fixedly installed on a support frame (1201), and the matching edge sealing protrusion (1209) and the support frame (1201) are rotatably connected.

6. The apparatus of claim 1 wherein, The support device comprises a longitudinal moving mechanism for controlling longitudinal height adjustment of the ultrasonic edge sealing mechanism (5) and a transverse moving mechanism for controlling distance of the ultrasonic edge sealing mechanism (5) and the polyester net edge position.

7. An ultrasonic edge cutting and sealing apparatus for a polyester web as defined in claim 6, wherein, The longitudinal moving mechanism comprises a telescopic rod (2), a screw rod assembly is installed on an output end of the telescopic rod (2), and a transverse sliding rod (9) is arranged on an output end of the screw rod assembly.

8. The apparatus of claim 7, wherein, The transverse moving mechanism comprises a longitudinal rod (8), the longitudinal rod (8) and the transverse sliding rod (9) are fixedly connected, the transverse sliding rod (9) is slidably arranged on a transverse sliding block (3), the transverse sliding block (3) and a longitudinal sliding rod (11) are slidably connected, and the longitudinal sliding rod (11) is installed on a base (1) of the telescopic rod (2).

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