Textile cloth roll packaging equipment

Abstract

The invention relates to the technical field of cloth roll packaging, and provides textile cloth roll packaging equipment which comprises an end sealing device, the end sealing device comprises a sliding bin, the sliding bin is arranged on a workbench in a sliding mode and can be close to or away from the end of a cloth roll, and the sliding bin is provided with an air suction opening communicating with an air suction device; the clamping mechanism is rotationally arranged in the sliding bin; the heat-sealing cutting mechanism is arranged in the sliding bin and located on the side, close to the cloth roll, of the clamping mechanism. According to the technical scheme, the sliding bin of the end sealing device can be close to or far away from the end of the cloth roll, the slitter edges of the film are adsorbed through the suction opening, the slitter edges of the film can be preliminarily gathered, and the film can be more flatly fixed to the cloth roll. The clamping mechanism twists the slitter edge of the film into a spiral multi-layer structure, fusion of the multi-layer film can be achieved during heat sealing, the sealing interface is effectively enlarged, stress generated by circumferential shrinkage of the film during heat shrinkage is dispersed, and the problems of cracks, layering or virtual sealing at a sealing opening due to limited sealing interface and stress concentration in existing plane heat sealing are solved.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of textile cloth roll packaging, and specifically, to a textile cloth roll packaging device. Background Art

[0002] In the textile industry, the packaging of cloth rolls (such as cotton, linen, chemical fiber fabric rolls, etc.) usually adopts the heat shrinkable film packaging process, and its core processes include steps such as film covering the cloth roll, end face plastic sealing and shearing, heat shrinkage shaping, etc. Among them, the end face plastic sealing and shearing process is the key link determining the packaging quality - it is necessary to cut off the redundant film at both ends of the cloth roll and achieve edge sealing through heat sealing to prevent the film from cracking at both ends during the subsequent heat shrinkage process.

[0003] After the existing equipment finishes covering the film, it usually gathers the waste edges of the film at both ends of the cloth roll flatly (such as squeezing towards the center of the end face) through clamps or pressure rollers, and then uses a heat sealing knife for long-distance flat heat sealing and cutting. However, although the waste edges are gathered before heat sealing, essentially the heat-shrinkable film is in a folded and stacked state, and the heat sealing process only realizes the linear fusion of the film, with a limited effective sealing interface, and it is difficult to withstand the stress generated by the circumferential shrinkage of the film during heat shrinkage. In practical applications, cracks, delamination, or false sealing are likely to occur at the sealing joints of such flat heat sealing, resulting in the film cracking at both ends of the cloth roll during the heat shrinkage stage, affecting the sealing and reliability of the packaging.

[0004] With the improvement of the requirements for packaging appearance and protective performance of high-end textile fabrics (such as silk, medical fabrics), and the wide application of diversified film materials such as PE, POF, and degradable films, the defects of the existing flat heat sealing process have become increasingly obvious. Due to the limitations of the waste edge treatment method in the existing end face plastic sealing and shearing process, there are core problems such as poor fusion effect and stress concentration, and it is urgent to achieve a technological breakthrough through structural innovation and process optimization to meet higher-standard packaging requirements. Summary of the Invention

[0005] To overcome the above defects, embodiments of the present invention provide a textile cloth roll packaging device, which solves the technical problem that in the existing textile cloth roll packaging device, after the film covering is completed, only folding heat sealing and cutting are performed on the waste edges of the film at both ends of the cloth roll, resulting in a limited end face sealing interface and concentrated shrinkage stress, and thus the film is likely to crack at both ends during the heat shrinkage stage of the cloth roll.

[0006] According to one aspect, at least one embodiment of the present invention provides a textile cloth roll packaging device, including a workbench and a covering device and a sealing end device arranged on the workbench, the sealing end device is used for covering the film onto the cloth roll; there are two sealing end devices and they are respectively used for heat sealing the waste edges of the film at both ends of the cloth roll; the sealing end device includes: A sliding bin, which is slidably arranged on the workbench and can approach or move away from the end of the cloth roll. The sliding bin has an air extraction port communicated with an air extraction device, and the air extraction port is used for adsorbing the waste film edge on the end face of the cloth roll; A clamping mechanism, which is rotatably arranged in the sliding bin and is used for clamping the waste film edge and driving the waste film edge to rotate so as to twist the waste film edge into a spiral multi-layer structure; A heat sealing and cutting mechanism, which is arranged in the sliding bin and on the side of the clamping mechanism close to the cloth roll. The heat sealing and cutting mechanism is used for heat sealing and cutting the twisted waste film edge.

[0007] For example, in a textile cloth roll packaging device provided by at least one embodiment of the present invention, the clamping mechanism includes: A substrate, which is rotatably connected to the inner wall of the sliding bin. A first air passing port communicated with the air extraction port is provided through the substrate, and a plurality of first sliding grooves extending radially are formed on the substrate; Closing clamping plates, the number of the closing clamping plates is several. The closing clamping plates are slidably connected to the side surface of the substrate. A first protrusion for slidingly cooperating with the first sliding groove is arranged on one side wall of the closing clamping plate, and a second protrusion is arranged on the other side wall. The closing clamping plate has a closing angle arranged on the side close to the axis of the substrate; A rotating plate, which is slidably connected to a plurality of the closing clamping plates. A second air passing port communicated with the first air passing port is provided on the rotating plate. A plurality of second sliding grooves are circumferentially and evenly arranged on the rotating plate. An included angle is formed between the extending direction of the second sliding groove and the radial direction of the rotating plate. The second sliding groove is used for slidingly cooperating with the second protrusion. Driven by the rotation of the rotating plate, the closing clamping plate can swing under the guiding action of the first protrusion and the second protrusion so that the closing angle approaches the axis side of the rotating plate and clamps the waste film edge.

[0008] For example, in a textile cloth roll packaging device provided by at least one embodiment of the present invention, the closing angle has a spiked protrusion for contacting the waste film edge, and the spiked protrusions of a plurality of the closing angles are all used for piercing the waste film edge to limit the relative position between the closing angle and the waste film edge.

[0009] For example, in a textile cloth roll packaging device provided by at least one embodiment of the present invention, the clamping mechanism further includes: A telescopic member, one end of which is hinged to the substrate and the other end is hinged to the rotating plate. The telescopic member is used for driving the rotating plate to rotate relative to the substrate; A rotating driving member is provided on the sliding bin, and the output end of the rotating driving member meshes with the outer peripheral edge of the substrate to drive the substrate to rotate within the sliding bin.

[0010] For example, in a textile cloth roll packaging device provided by at least one embodiment of the present invention, the end sealing device further includes two converging plates. Both of the two converging plates are located at one end of the sliding bin close to the cloth roll and are respectively located on the upper and lower sides of the cloth roll. The converging plates can slide towards each other to preliminarily converge the film waste edges entering the air suction port.

[0011] For example, in a textile cloth roll packaging device provided by at least one embodiment of the present invention, the two converging plates are arranged in a staggered manner along the axis direction of the cloth roll, and the adjacent sides of the two converging plates both have clamping grooves for abutting against the film waste edges.

[0012] For example, in a textile cloth roll packaging device provided by at least one embodiment of the present invention, the heat sealing and cutting mechanism includes: Sliding frames, there are two sliding frames, and the two sliding frames are vertically slidably arranged in the sliding bin and are located on both sides of the air suction port; Mounting plates, there are two mounting plates, and the two mounting plates are respectively horizontally slidably arranged on the two sliding frames, and the two mounting plates can slide towards each other; Heating plates, there are two heating plates, and the two heating plates are respectively slidably connected to the adjacent sides of the two mounting plates. The side of the heating plate facing the air suction port has a heating surface, and the heating surface is used for thermally melting the film waste edges; Cutting knives, there are two cutting knives, and the two cutting knives are respectively arranged on the two mounting plates. The cutting edges of the two cutting knives both face the axis side of the air suction port and are used for cutting the film waste edges; after the two mounting plates slide close to each other, the heating surface contacts the twisted film waste edges prior to the cutting edges of the cutting knives.

[0013] For example, in a textile cloth roll packaging device provided by at least one embodiment of the present invention, the side of the heating plate away from the heating surface has guide posts. The guide posts penetrate and are slidably connected to the mounting plates, and a first elastic member is sleeved on the guide posts. The two ends of the first elastic member respectively act on the mounting plate and the heating plate to elastically push the heating plate to slide the heating plate away from the mounting plate.

[0014] For example, in a textile cloth roll packaging device provided by at least one embodiment of the present invention, the guide posts are provided with a plurality of radially penetrating and axially spaced limiting holes. A limiting rod threadedly connected is arranged in the limiting hole on the side of the mounting plate away from the heating plate, and the limiting rod is used to limit the sliding amplitude of the guide posts on the mounting plates.

[0015] For example, in a textile fabric roll packaging device provided by at least one embodiment of the present invention, separating members capable of approaching each other are respectively slidably connected to adjacent sides of the two heating plates. A second elastic member is provided between the separating members and the heating plates, and the second elastic member is used to elastically pull the separating members away from the heating plates. When the two mounting plates approach each other, the two separating members can contact the waste film edges prior to the heating plates; when the two mounting plates move away from each other, the two separating members can separate from the waste film edges last, so that the heat-melted waste film edges are separated from the heating plates. The separating members divide the heating surface into a first heat-melting section and a second heat-melting section. The first heat-melting section is close to the fabric roll, and the second heat-melting section is close to the air extraction port. The width of the first heat-melting section extending along the axis of the fabric roll is smaller than the width of the second heat-melting section extending along the axis of the fabric roll. After the separating members and the heating plates both contact the waste film edges, the first heat-melting section is used to melt the waste film edges to form an insurance melting section, and the second heat-melting section is used to melt the waste film edges to form a sealing melting section.

[0016] The beneficial effects of the embodiments of the present invention are as follows: In the present invention, the sliding bin of the end-sealing device can approach or move away from the end of the fabric roll. The waste film edges are adsorbed through the air extraction port. Compared with the prior art devices that only gather the waste film edges through clamps or flat pressing rollers, it can not only initially gather the waste film edges, but also fix the film more flatly on the fabric roll, providing a good foundation for subsequent processing. The clamping mechanism twists the waste film edges into a spiral multi-layer structure, changing the state of folding and stacking of the waste film edges in the prior art, and significantly increasing the contact area between the films. When the heat-sealing and cutting mechanism works, the heating surface contacts the waste film edges prior to the cutting blade edge, ensuring that the heat-sealing process precedes the cutting. Moreover, the spiral multi-layer structure can achieve the fusion of multiple layers of films during heat-sealing, effectively increasing the sealing interface and dispersing the stress generated by the circumferential shrinkage of the film during heat shrinkage, avoiding problems such as cracks, delamination or virtual sealing at the sealing part caused by limited sealing interface and stress concentration in the prior art planar heat-sealing, and greatly improving the sealing performance and reliability of the fabric roll packaging, meeting the higher requirements for packaging of high-end textile fabrics. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the following drawings are only some exemplary embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the exemplary embodiments of the present invention and these drawings.

[0018] Figure 1 Schematic structural diagram of a textile fabric roll packaging device in an embodiment of the present invention; Figure 2 For Figure 1 Schematic structural diagram of the end sealing device in the embodiment of; Figure 3 For Figure 2 Enlarged view at position A in; Figure 4 For Figure 1 Schematic sectional structure diagram of the end sealing device in the embodiment of; Figure 5 For Figure 4 Enlarged view at position B in; Figure 6 For Figure 1 Schematic structural diagram of the second state of the clamping mechanism in the embodiment of; Figure 7 For Figure 1 Schematic structural diagram of the third state of the clamping mechanism in the embodiment of; Figure 8 For Figure 1 Schematic structural diagram of another perspective of the third state of the clamping mechanism in the embodiment of; Figure 9 For Figure 1 Schematic structural diagram of the first state of the clamping mechanism (without the rotating plate) in the embodiment of; Figure 10 For Figure 1 Schematic structural diagram of the third state of the clamping mechanism (without the substrate) in the embodiment of; Figure 11 For Figure 1 Schematic structural diagram of the closing clamping plate in the embodiment of;

[0019] In the figure: 1, fabric roll; 2, covering device; 4, workbench; 6, end sealing device; 7, sliding bin; 71, air extraction port; 8, clamping mechanism; 9, heat sealing and cutting mechanism; 81, substrate; 811, first air passage; 812, first chute; 82, closing clamping plate; 823, first protrusion; 824, second protrusion; 825, closing angle; 83, rotating plate; 831, second air passage; 832, second chute; 826, spiked protrusion; 84, telescopic member; 85, rotating driving member; 10, converging plate; 1001, clamping groove; 91, sliding frame; 92, mounting plate; 93, heating plate; 931, heating surface; 932, guide post; 94, cutting knife; 95, first elastic member; 9321, limiting hole; 933, limiting rod; 96, disengaging member; 97, second elastic member; 9311, first heat melting section; 9312, second heat melting section. Detailed implementation manners

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the present invention, rather than limiting the present invention.

[0021] To make the drawings concise, only the parts related to the disclosure are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, for components with the same structure or function, only one of them is schematically shown, or only one of them is labeled. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0022] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0023] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature.

[0024] In the description of this embodiment, the orientation or positional relationship such as "above", "below", "left", and "right" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0025] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

[0026] Such as Figures 1 to 5As shown in the figure, it shows a textile fabric roll packaging device in an embodiment of the present invention, which includes a workbench 4. Above the workbench 4, there are a covering device 2 and two end-sealing devices 6. The two end-sealing devices 6 correspond to the two ends of the fabric roll 1 respectively. The covering device 2 is used to cover the fabric roll 1 with a film. After the film covering is completed, the end-sealing device 6 performs heat-sealing treatment on the waste edges of the film at both ends of the fabric roll 1.

[0027] The end-sealing device 6 is composed of a sliding bin 7, a clamping mechanism 8, and a heat-sealing and cutting mechanism 9. The sliding bin 7 is slidably connected to the workbench 4 through a guide rail and can approach or move away from the end of the fabric roll 1 along the axis direction of the fabric roll 1. An air extraction channel is provided in the sliding bin 7, and an air extraction port 71 is opened on the side close to the end of the fabric roll 1. The air extraction port 71 is connected to an air extraction device through a pipeline. When the air extraction device operates, the air extraction port 71 generates an adsorption force to adsorb the waste edge of the film on the end face of the fabric roll 1 to the air extraction port 71, and at the same time, the waste edge of the film is also flattened and attached to the fabric roll 1.

[0028] The clamping mechanism 8 is rotatably installed in the sliding bin 7. When clamping, through mechanical transmission or other driving methods, the clamping mechanism 8 is actuated to clamp the waste edge of the film and drive the clamped waste edge of the film to rotate, thereby twisting the waste edge of the film into a spiral multi-layer structure.

[0029] The heat-sealing and cutting mechanism 9 is arranged in the sliding bin 7 and is located on the side of the clamping mechanism 8 close to the fabric roll 1. Through a mechanical transmission structure, after the waste edge of the film is twisted, the two mounting plates 92 slide towards each other, so that the heating surface 931 first contacts the twisted waste edge of the film to perform heat-sealing on the waste edge of the film; then, the cutting edge of the cutting knife 94 contacts the waste edge of the film to cut off the excess waste edge of the film, completing the heat-sealing and cutting treatment of the waste edge of the film at the end of the fabric roll 1.

[0030] The sliding bin 7 of the end-sealing device 6 can approach or move away from the end of the fabric roll 1. By adsorbing the waste edge of the film through the air extraction port 71, compared with the existing equipment that only gathers the waste edge of the film through a fixture or a flat roller, it can not only initially gather the waste edge of the film, but also fix the film more flatly on the fabric roll 1, providing a good basis for subsequent processing. The clamping mechanism 8 twists the waste edge of the film into a spiral multi-layer structure, changing the state of folding and stacking of the waste edge of the film in the prior art, and significantly increasing the contact area between the films. When the heat-sealing and cutting mechanism 9 works, the heating surface 931 contacts the waste edge of the film before the cutting edge of the cutting knife 94, ensuring that the heat-sealing process precedes the cutting. Moreover, the spiral multi-layer structure can achieve the fusion of multiple layers of films during heat-sealing, effectively increasing the sealing interface and dispersing the stress generated by the circumferential shrinkage of the film during heat shrinkage, avoiding problems such as cracks, delamination, or false sealing at the sealing joint caused by limited sealing interface and stress concentration in the existing planar heat-sealing, greatly improving the sealing performance and reliability of the packaging of the fabric roll 1, and meeting the higher requirements for packaging of high-end textile fabrics.

[0031] As Figures 6 to 11As shown in the figure, the clamping mechanism 8 includes a base plate 81, a closing clamping plate 82, a rotating plate 83, a telescopic member 84 and a rotating driving member 85. The base plate 81 is rotatably connected to the inner wall of the sliding bin 7 through a bearing, and a first air passing opening 811 communicating with the air extraction port 71 is provided through the middle thereof, and a plurality of first sliding grooves 812 are radially formed on the side surface thereof; the number of the closing clamping plates 82 corresponds to that of the first sliding grooves 812, and the first protrusions 823 on the side walls are embedded in the first sliding grooves 812 for sliding, and a second protrusion 824 is provided on the other side wall, and a closing angle 825 is formed at one end of the closing clamping plate 82 close to the axis of the base plate 81, and a spiked protrusion 826 is provided on the edge of the closing angle 825. The spiked protrusion 826 is prismatic, and the tip faces the axis direction of the base plate 81 and can pierce the surface layer of the waste film edge to form a limiting anchor point. The rotating plate 83 is slidably connected to the outside of the closing clamping plate 82 through a guiding structure and can rotate relative to the base plate 81. A second air passing opening 831 communicating with the first air passing opening 811 is provided in the middle, and circumferentially distributed second sliding grooves 832 are formed on the surface. The extending direction of the second sliding grooves 832 forms an angle with the radial direction of the rotating plate 83. One end of the telescopic member 84 is hinged to the base plate 81 and the other end is hinged to the rotating plate 83. The rotating plate 83 is driven to rotate around the center of the base plate 81 through telescopic movement, so that the inner wall of the second sliding groove 832 pushes the second protrusion 824 of the closing clamping plate 82, driving the closing clamping plate 82 to slide along the first sliding groove 812 and swing around the first protrusion 823, and the closing angle 825 closes towards the axis side of the rotating plate 83 to clamp the waste film edge; the rotating driving member 85 is arranged in the sliding bin 7, and its output end meshes with the toothed ring on the outer periphery of the base plate 81, and the base plate 81 is driven to rotate in the sliding bin 7 through gear transmission, thereby driving the clamped waste film edge to perform a circular motion and twisting the waste film edge into a spiral multi-layer structure.

[0032] The substrate 81 and the rotating plate 83, through the sliding groove - protrusion matching structure, convert the circumferential rotation of the rotating plate 83 into the radial closing action of the closing clamp plate 82. With the precise control of the rotation angle of the rotating plate 83 by the telescopic member 84, the adaptive adjustment of the clamping force for the waste edges of films with different thicknesses is achieved, ensuring that multiple closing clamp plates 82 are clamped synchronously and evenly, and preventing the waste edges of the film from slipping or tearing during the twisting process. The spike protrusions 826 on the edge of the closing angle 825 limit the position through physical piercing, effectively solving the problem of easy slipping when clamping smooth film materials such as PE and POF, and keeping the waste edges of the film in a stable positioning state during the clamping process, providing a reliable clamping basis for spiral twisting. The gear transmission structure of the rotation driving member 85 provides a stable torque output, ensuring that the substrate 81 rotates at a constant speed, forming a regular helical pitch angle for the twisted waste edges of the film, and ensuring that the waste edges of the film are stacked in a uniform helical multi - layer shape before heat sealing. In addition, when the closing angles 825 approach each other driven by the rotating plate 83, the closing action of the closing angles 825 synchronously reduces the ventilation area of the air extraction port 71, initially reducing the air volume between the waste edges of the film and the end face of the cloth roll 1 through mechanical compression. With the negative pressure adsorption of the air extraction device, the residual air between the film and the cloth roll 1 can be quickly and thoroughly discharged, avoiding problems such as local bulging or uneven shrinkage caused by air residue during the heat shrinkage process, and providing a flat and tight wrapping basis for subsequent heat shrinkage shaping.

[0033] As Figures 2 to 5 shown, two gathering plates 10 are arranged at one end of the sliding bin 7 of the end - sealing device 6 close to the cloth roll 1. The two gathering plates 10 are respectively located on the upper and lower sides of the cloth roll 1 and are connected to the sliding bin 7 through telescopic cylinders or linear guides, and are arranged staggeredly along the axial direction of the cloth roll 1. The end of the upper gathering plate 10 close to the cloth roll 1 is offset towards the inner side of the sliding bin 7 relative to the corresponding end of the lower gathering plate 10, forming a three - dimensional gathering structure with a dislocation. V - shaped clamping grooves 1001 are provided on the adjacent sides of the two gathering plates 10, and anti - slip patterns or protrusion structures are arranged on the inner walls of the clamping grooves 1001 for abutting against the edges of the waste edges of the film. A guiding inclined surface is also provided inside the gathering plate 10, and this inclined surface is inclined towards the direction of the air extraction port 71. When the sliding bin 7 approaches the end of the cloth roll 1 along the axial direction of the cloth roll 1 (when the sliding bin 7 moves, the air extraction device is continuously turned on), the driving device (such as a cylinder or a lead screw assembly) drives the two gathering plates 10 to slide towards each other along the linear guide. The guiding inclined surface first contacts the waste edges of the film that expand outward on the end face of the cloth roll 1, and squeezes the waste edges towards the center direction of the air extraction port 71 through the thrust of the inclined surface. At the same time, the anti - slip structure of the clamping groove 1001 is closely attached to the edges of the waste edges. Through the dual effects of mechanical clamping and inclined surface guiding, the waste edges of the film are initially shaped into a regular shape with the edges converging towards the center, facilitating the subsequent adsorption by the air extraction port 71 and the processing by the clamping mechanism 8.

[0034] The staggered gathering plates 10 are designed to break through the limitations of traditional planar extrusion. By combining axial dislocation and radial extrusion, three-dimensional solid gathering of the film waste edges is achieved. While gathering the waste edges radially towards the center along the cloth roll 1, a gradient contraction is formed axially. Through the gathering effect of the gathering plates 10, the length of the film waste edges that need to be twisted can be determined, avoiding driving all the films wrapped around the cloth roll 1 to rotate during the rotation of the clamping device 8. The anti-slip structure on the inner wall of the clamping groove 1001 enhances the positioning stability of the film waste edges during the gathering process, preventing the displacement or sliding of the waste edges caused by insufficient friction, ensuring that the waste edges form a preset regular shape, and providing an ideal initial condition for the spiral twisting of the subsequent clamping mechanism 8. The synergistic effect of mechanical gathering and air extraction adsorption significantly reduces the adsorption area required by the air extraction port 71, reduces the load of the air extraction device, is especially suitable for scenarios where the waste edges are fluffy or irregular after film coating, and greatly improves the efficiency and accuracy of waste edge pretreatment. This structural design optimizes the overall process coherence of the sealing end device 6, enabling the film waste edges to have a stable geometric shape before entering the clamping and twisting processes, and reducing subsequent sealing defects caused by irregular waste edge shapes from the source.

[0035] As Figures 2 to 5 shown, the heat sealing and cutting mechanism 9 includes two groups of symmetrically arranged sliding frames 91, mounting plates 92, heating plates 93 and cutting blades 94. The sliding frames 91 slide vertically in the sliding bin 7 and are distributed on both sides of the air extraction port 71. The mounting plates 92 are connected to the sliding frames 91 through transverse slide rails and can slide towards or away from each other radially along the cloth roll 1. The heating plates 93 are slidably connected to the inner sides of the mounting plates 92 through guide columns 932. The guide columns 932 penetrate through the mounting plates 92 and are sleeved with first elastic members 95. The two ends of the first elastic members 95 act on the mounting plates 92 and the heating plates 93 respectively, for elastically pushing the heating plates 93 to move towards the air extraction port 71; a number of radially penetrating and axially spaced limiting holes 9321 are formed on the guide columns 932, forming multiple gears that can control the heating time of the heating plates 93. Limiting rods 933 are threadedly connected to the limiting holes 9321 on the side of the mounting plates 92 away from the heating plates 93, for restricting the sliding amplitude of the guide columns 932. The side of the heating plate 93 facing the air extraction port 71 is the heating surface 931, and a separating member 96 is slidably connected to its adjacent side. A second elastic member 97 is provided between the separating member 96 and the heating plate 93, and this elastic member is used for elastically pulling the separating member 96 to make it away from the heating plate 93; the separating member 96 divides the heating surface 931 into a first heat melting section 9311 close to the cloth roll 1 and a second heat melting section 9312 close to the air extraction port 71, and the width of the first heat melting section 9311 extending along the axis of the cloth roll 1 is smaller than that of the second heat melting section 9312. The cutting blade 94 is fixed to the mounting plate 92, and the cutting edge faces the axial center side of the air extraction port 71 and maintains a preset distance from the heating surface 931.

[0036] When the mounting plates 92 are driven to slide towards each other, the separating member 96 contacts the waste film edge before the heating plates 93, pre-positioning the twisted waste film edge. As the mounting plates 92 continue to slide, the second elastic member 97 is stretched, enabling the two heating plates 93 to continue approaching each other. The first heat fusion section 9311 and the second heat fusion section 9312 of the heating surface 931 contact the waste film edge. When the heating plates 93 reach the stroke limited by the limit rod 933, the cutting edge of the cutting knife 94 contacts the waste edge and completes the cutting. When the mounting plates 92 slide away from each other, the first elastic member 95 releases elastic potential energy, enabling the heating plates 93 to reset. The separating member 96 remains in contact with the waste edge after heat fusion under the traction of the second elastic member 97 until the final separation, preventing the heating plates 93 from adhering to the film.

[0037] The elastic linkage structure of the heating plates 93 and the separating member 96, through the design of the separating member 96 contacting first and then separating, solves the problem of adhesion between the heat-fused film and the heating surface 931, ensuring that the edge of the cut waste edge is flat and without tearing. The limit rod 933 precisely controls the maximum stroke of the heating plates 93, preventing the film from melting due to excessive heat fusion time. The multi-gear limit hole 9321 design supports rapid adjustment of the heat sealing pressure, adapting to different materials of film materials and enhancing the versatility of the equipment.

[0038] The dual heat fusion sections divided by the separating member 96 form a gradient sealing structure; the narrow first heat fusion section 9311 serves as an insurance melting section, preferentially and controllably bursting when the heat shrinkage stress is overloaded, providing a preset path for stress release; the wide second heat fusion section 9312 serves as a sealing melting section, maintaining the core sealing interface with a larger fusion area. This layered failure mechanism ensures overall sealing while allowing local deformation. The timing control of the heating plates 93 contacting the waste edge before the cutting knife 94 ensures the continuous process of "fusing first and then cutting", avoiding problems such as rough edges and false sealing caused by the film being cut before sufficient melting in traditional processes.

[0039] The above structure effectively solves the core problems such as insufficient sealing interface, stress concentration, adhesion and tearing in the existing heat sealing and cutting mechanism 9 through the collaborative design of mechanical limit, elastic compensation and gradient fusion, especially suitable for diversified materials such as PE, POF and degradable films, improving the yield and packaging protection performance of the heat shrinkage process.

[0040] The complete working process is as follows: The wrapping device 2 wraps the film material around the outer surface of the cloth roll 1 to form a complete cylindrical wrapping structure. The film at both ends of the cloth roll 1 exceeding the end face forms the waste edge to be processed. At this time, there may be an air gap between the film and the cloth roll 1 that needs to be excluded later.

[0041] The sliding bin 7 moves close to the end of the fabric roll 1 along the axis direction of the fabric roll 1, and the air extraction port 71 is communicated with the air extraction device to generate a negative pressure adsorption force. Two gathering plates 10 arranged staggeredly along the axis at the end of the sliding bin 7 close to the fabric roll 1 slide towards each other along the linear guide rail under the action of the driving device. When the sliding bin 7 slides, the air extraction device continuously extracts air. The continuous air suction can assist in gathering the waste edges of the film. The clamping grooves 1001 inside the gathering plates 10 contact the waste edges of the film that expand outward from the end face of the fabric roll 1. The clamping grooves 1001 squeeze the waste edges towards the center of the air extraction port 71 to complete the preliminary radial gathering, so that the edges of the waste edges naturally converge towards the center of the air extraction port 71 to form a regular shape.

[0042] The pre-gathered waste edges of the film are adsorbed and attached around the air extraction port 71. The telescopic member 84 drives the rotating plate 83 to rotate around the center of the substrate 81. The second sliding groove 832 of the rotating plate 83 pushes the second protrusion 824 of the closing clamping plate 82, so that the closing clamping plate 82 slides and swings along the first sliding groove 812 of the substrate 81. During the swinging process, the ventilation area of the air extraction port will gradually decrease, so that the excess gas in the film can be extracted faster and more thoroughly.

[0043] The closing angle 825 with spiky protrusions 826 converges towards the axis side, pierces the surface layer of the waste edges of the film to form limiting anchor points and uniformly clamps the waste edges. Then the rotating driving member 85 drives the substrate 81 to rotate through gear transmission, so that the waste edges of the film between the gathering plates 10 and the clamping mechanism 8 make a circular motion along with the substrate 81 and are twisted into a spiral multi-layer structure, and the waste edges are transformed from a planar fold to a three-dimensional spiral stack by evenly receiving circumferential force to increase the contact area between the film layers.

[0044] Two groups of mounting plates 92 of the heat-sealing and cutting mechanism 9 slide towards each other on the sliding frame 91 to perform the time-sequence action of "heat-sealing first and then cutting". The separating member 96 contacts the spiral waste edges before the heating plate 93. As the mounting plate 92 slides, the heating plate 93 approaches continuously. The first hot-melt section 9311 and the second hot-melt section 9312 of the heating surface 931 contact the waste edges of the film. When the heating plate 93 reaches the stroke limited by the limiting rod 933, the cutting edge of the cutting knife 94 contacts the already hot-melted waste edges, and the cutting is completed before the heat-sealing layer cools, so that the edges are naturally sealed due to the hot-melt effect. When the mounting plate 92 slides backward, the separating member 96 is finally separated from the waste edges under the pulling of the second elastic member 97 to prevent the heating plate 93 from sticking to the film to ensure that the edges of the cut waste edges are flat and without tearing. After the waste edges at both ends are processed, the sliding bin 7 returns to the initial position, and the equipment enters the packaging process of the next fabric roll 1.

[0045] Through multi-institutional collaboration and process timing design, efficient processing and reliable sealing of thin-film waste edges are achieved: when the sliding bin 7 slides, the air extraction device continuously extracts air. In cooperation with the gathering plate 10, the waste edges are radially extruded and axially positioned through the clamping groove 1001, and the irregular waste edges are sorted into a regular shape with convergent edges, providing a stable foundation for subsequent clamping and twisting. The clamping mechanism 8 swings and closes the clamping plate 82 and rotates the substrate 81 to transform the waste edges from a planar fold into a spiral multi-layer stack, exhausting the residual air between the thin film and the cloth roll 1 during the process of reducing the diameter of the air extraction port 71, increasing the contact area between the waste edge layers, changing the simple stacking state of the thin film in the prior art, and forming a three-dimensional fusion interface during heat sealing to disperse the circumferential stress of thermal shrinkage.

[0046] The heat-sealing and cutting mechanism 9 adopts a timing control of "the separating part 96 contacts first - the heating plate 93 melts in layers - the cutting knife 94 cuts later". The width difference between the first hot-melting section 9311 and the second hot-melting section 9312 is designed to form a stress release gradient. When the thermal shrinkage stress is overloaded, the first hot-melting section 9311 preferentially undergoes controllable cracking, providing a preset release path for the stress and preventing the stress from being transmitted to the second hot-melting section 9312, ensuring the stability of the core sealing interface.

[0047] The heating plate 93 realizes self-adaptive contact pressure and precise stroke control through the guide post 932, the first elastic member 95, the second elastic member 97 and the limit rod 933. The heat-sealing parameters can be adjusted by changing the gear position of the limit rod 933 according to the characteristics of different thin-film materials, solving the problems of melting through and false sealing caused by material differences. The symmetric end-sealing devices 6 at both ends of the cloth roll 1 synchronously execute each process. Through the symmetry of the mechanical structure and the synchronous control of the drive system, the waste edge treatment force, the twisting angle and the heat-sealing temperature at both ends are guaranteed to be consistent, avoiding packaging leakage caused by unilateral sealing failure, and being applicable to high-end fabrics with strict packaging requirements. The overall process innovates the mechanical structure and optimizes the process, improving the packaging tightness and reliability, enhancing the adaptability of the equipment to diversified thin-film materials, eliminating the problem of film cracking at both ends during the thermal shrinkage stage, and providing an efficient and stable packaging solution.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A textile cloth roll packaging device, characterized in that, It includes a workbench (4), a covering device (2) and a sealing device (6) arranged on the workbench (4). The sealing device (6) is used for covering a film onto a cloth roll (1). The sealing device (6) has two parts, which are respectively used for heat-sealing the waste edges of the film at both ends of the cloth roll (1). The sealing device (6) includes: A sliding bin (7), which is slidably arranged on the workbench (4) and can approach or move away from the end of the cloth roll (1). The sliding bin (7) has an air extraction port (71) communicated with an air extraction device, and the air extraction port (71) is used for adsorbing the waste edge of the film on the end face of the cloth roll (1). A clamping mechanism (8), which is rotatably arranged in the sliding bin (7) and is used for clamping the waste edge of the film and driving the waste edge of the film to rotate, so as to twist the waste edge of the film into a spiral multi-layer structure. A heat-sealing and cutting mechanism (9), which is arranged in the sliding bin (7) and on the side of the clamping mechanism (8) close to the cloth roll (1). The heat-sealing and cutting mechanism (9) is used for heat-sealing and cutting the twisted waste edge of the film.

2. The textile fabric roll packaging device according to claim 1, wherein, The clamping mechanism (8) includes: A substrate (81), which is rotatably connected to the inner wall of the sliding bin (7). The substrate (81) is provided with a first air passing port (811) communicated with the air extraction port (71) in a penetrating manner. The substrate (81) is provided with a plurality of first sliding grooves (812) extending radially. Closing clamping plates (82), the number of the closing clamping plates (82) is several. The closing clamping plates (82) are slidably connected to the side surface of the substrate (81). One side wall of the closing clamping plate (82) has a first protrusion (823) for sliding cooperation with the first sliding groove (812), and the other side wall has a second protrusion (824). The closing clamping plate (82) has a closing angle (825) arranged on the side close to the axis of the substrate (81). A rotating plate (83), which is slidably connected to a plurality of the closing clamping plates (82). The rotating plate (83) is provided with a second air passing port (831) communicated with the first air passing port (811). The rotating plate (83) is provided with a plurality of second sliding grooves (832) evenly distributed in the circumferential direction. The extending direction of the second sliding groove (832) forms an angle with the radial direction of the rotating plate (83). The second sliding groove (832) is used for sliding cooperation with the second protrusion (824). Driven by the rotation of the rotating plate (83), the closing clamping plate (82) can swing under the guiding action of the first protrusion (823) and the second protrusion (824), so that the closing angle (825) approaches the axis side of the rotating plate (83) and clamps the waste edge of the film.

3. The textile fabric roll packaging device according to claim 2, characterized in that, The closing angle (825) has a spike protrusion (826) for contacting the waste edge of the film. The spike protrusions (826) of a plurality of the closing angles (825) are all used for piercing the waste edge of the film to limit the relative position between the closing angle (825) and the waste edge of the film.

4. The textile fabric roll packaging device according to claim 2, characterized in that, The clamping mechanism (8) further includes: A telescopic member (84), one end of the telescopic member (84) is hingedly arranged on the substrate (81), and the other end is hingedly arranged on the rotating plate (83). The telescopic member (84) is used to drive the rotating plate (83) to rotate relative to the substrate (81). A rotation driving member (85), the rotation driving member (85) is arranged on the sliding bin (7), and the output end of the rotation driving member (85) is engaged with the outer peripheral edge of the substrate (81) to drive the substrate (81) to rotate in the sliding bin (7).

5. A textile cloth roll packaging device according to claim 1, characterized in that, The end-sealing device (6) further includes two converging plates (10). Both of the two converging plates (10) are located at one end of the sliding bin (7) close to the fabric roll (1), and are respectively located on the upper and lower sides of the fabric roll (1). The converging plates (10) can slide towards each other to preliminarily converge the film waste edges entering the air extraction port (71).

6. A textile fabric roll packaging device according to claim 5, characterized in that, The two converging plates (10) are arranged in a staggered manner along the axial direction of the fabric roll (1). The adjacent sides of the two converging plates (10) both have clamping grooves (1001) for abutting against the film waste edges.

7. A textile fabric roll packaging device according to claim 1, characterized in that, The heat-sealing and cutting mechanism (9) includes: Sliding frames (91), there are two sliding frames (91), and the two sliding frames (91) are vertically slidably arranged in the sliding bin (7) and are located on both sides of the air extraction port (71). Mounting plates (92), there are two mounting plates (92), and the two mounting plates (92) are respectively horizontally slidably arranged on the two sliding frames (91), and the two mounting plates (92) can slide towards each other. Heating plates (93), there are two heating plates (93), and the two heating plates (93) are respectively slidably connected to the adjacent sides of the two mounting plates (92). The side of the heating plate (93) facing the air extraction port (71) has a heating surface (931), and the heating surface (931) is used to thermally melt the film waste edges. Cutting knives (94), there are two cutting knives (94), and the two cutting knives (94) are respectively arranged on the two mounting plates (92). The cutting edges of the two cutting knives (94) both face the axial center side of the air extraction port (71) and are used to cut the film waste edges. After the two mounting plates (92) slide close to each other, the heating surface (931) contacts the twisted film waste edges prior to the cutting edges of the cutting knives (94).

8. A textile fabric roll packaging device according to claim 7, characterized in that, The side of the heating plate (93) away from the heating surface (931) has guide posts (932). The guide posts (932) penetrate and are slidably connected to the mounting plates (92). A first elastic member (95) is sleeved on the guide posts (932). The two ends of the first elastic member (95) respectively act on the mounting plate (92) and the heating plate (93) to elastically push the heating plate (93) so that the heating plate (93) slides away from the mounting plate (92).

9. A textile fabric roll packaging device according to claim 8, characterized in that, The guide post (932) is provided with a plurality of limiting holes (9321) that penetrate radially and are axially spaced apart. A limiting rod (933) connected by threads is provided in the limiting hole (9321) on the side of the mounting plate (92) away from the heating plate (93). The limiting rod (933) is used to limit the sliding amplitude of the guide post (932) on the mounting plate (92).

10. A textile cloth roll packaging device according to claim 7, characterized in that, On the adjacent sides of the two heating plates (93), separating members (96) that can approach each other are respectively slidably connected. A second elastic member (97) is provided between the separating member (96) and the heating plate (93). The second elastic member (97) is used to elastically pull the separating member (96) so that the separating member (96) is away from the heating plate (93); When the two mounting plates (92) approach each other, the two separating members (96) can contact the waste film edge prior to the heating plate (93); when the two mounting plates (92) move away from each other, the two separating members (96) can be the last to separate from the waste film edge, so that the melted waste film edge is separated from the heating plate (93); The separating member (96) divides the heating surface (931) into a first melting section (9311) and a second melting section (9312). The first melting section (9311) is close to the cloth roll (1), and the second melting section (9312) is close to the air extraction port (71). The width of the first melting section (9311) extending along the axis of the cloth roll (1) is smaller than the width of the second melting section (9312) extending along the axis of the cloth roll (1); After the separating member (96) and the heating plate (93) both contact the waste film edge, the first melting section (9311) is used to melt the waste film edge to form an insurance melting section, and the second melting section (9312) is used to melt the waste film edge to form a sealing melting section.

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