Fabric shaping device and fabric shaping method

Abstract

A fabric shaping device and a fabric shaping method, comprising a frame and a plurality of pairs of tensioning shafts arranged on the frame, the tensioning shaft comprising a coaxially arranged stretching screw and a stretching main shaft, the stretching main shaft being sleeved on the stretching screw; at least two shaping rollers are sleeved on the stretching main shaft, the two shaping rollers are connected by a shaping length adjusting member which can be elongated or shortened along the axial direction of the stretching main shaft, a shaping cylinder is provided at a portion of the shaping length adjusting member close to the shaping roller, and a connecting transition cylinder is provided at an end of the shaping cylinder away from the shaping roller; compared with the prior art, the shaping length adjusting member can be used to achieve stretching in the axial direction of the tensioning shaft, so that the fabric is stretched in the axial direction of the tensioning shaft; and the shaping length adjusting member is cleverly provided with a connecting structure of the shaping cylinder, the connecting transition cylinder and the polygonal cylinder, so as to control the change of the outer circumference of the tensioning shaft when it is elongated or shortened, so that the accuracy of fabric shaping meets actual requirements.

Description

Technical Field

[0001] The invention relates to the technical field of fabric processing, and in particular to a fabric shaping device and a fabric shaping method. Background Art

[0002] Cylindrical fabric professionally refers to fabric woven by a cylindrical loom. It is a general term. The needles are distributed in a cylindrical shape on the loom body. The grey fabric is a cylinder and needs to be shaped before it can be further used. For example, small-diameter fabrics need to be pre-treated for shaping and then cut to achieve the purpose of use.

[0003] In actual use, a fabric setting machine is usually used when a piece of fabric needs to be dried and flattened. The fabric can be flattened and set under the tensioning, shaping and hot air circulation baking of the fabric setting machine, so the role of the fabric setting machine is particularly important.

[0004] Existing fabric shaping machines can basically only adjust the distance between two tensioning shafts to perform unidirectional stretching on the cylindrical fabric, but cannot stretch the cylindrical fabric in the axial direction of the tensioning shaft; even if a few fabric shaping machines can achieve stretching of the cylindrical fabric in the axial direction of the tensioning shaft to a certain extent, the surface circumference of the tensioning shaft will change greatly when the tensioning shaft is lengthened or shortened, resulting in wrinkles, wear, damage, large dimensional errors and other problems on the cylindrical fabric during shaping, and the final shaped product is of poor quality. Summary of the invention

[0005] The present invention aims to overcome the defects in the above-mentioned prior art and provides a fabric shaping device and a fabric shaping method which can stretch the cylindrical fabric in the axial direction of the tensioning shaft and control the change of the surface circumference when the tensioning shaft is lengthened or shortened.

[0006] In order to achieve the above-mentioned invention objectives, the present invention adopts the following technical scheme: a fabric shaping device, comprising a frame and a plurality of tensioning shafts arranged on the frame, the tensioning shaft comprising a coaxially arranged stretching screw and a stretching main shaft, the stretching main shaft is sleeved on the stretching screw; at least two shaping rollers are sleeved on the stretching main shaft, the two shaping rollers are connected by a shaping length adjusting member that can be lengthened or shortened along the axial direction of the stretching main shaft, the shaping length adjusting member is provided with a shaping cylinder at the part close to the shaping roller, and a connecting transition cylinder is provided at the end of the shaping cylinder away from the shaping roller; a polygonal cylinder with adjustable stretching length is provided at the end of the connecting transition cylinder away from the shaping cylinder; the length of the shaping roller Lg≥0 mm, and the length of the shaping cylinder Lyt≥0 mm; a power device for driving the stretching screw to rotate is provided on the frame or the stretching main shaft.

[0007] As a preferred embodiment of the present invention, the surface of the connection between the shaping cylinder and the connecting transition cylinder forms a connecting circumference; the outer circumference of the polygonal column, the outer circumference of the connecting transition cylinder, the outer circumference of the shaping cylinder and the outer circumference of the shaping roller are all less than or equal to the length difference. ; , where R is the radius of the connecting circle, N is the number of sides of the polygonal prism, R≤1000 mm, 3<N≤100.

[0008] As a preferred solution of the present invention, the frame is also provided with a power device three for adjusting the distance between two tensioning shafts in any pair of tensioning shafts; the sum of the lengths of adjacent shaping rollers and shaping cylinders Lg+Lyt≤1000 mm.

[0009] As a preferred solution of the present invention, the polygonal prism is a regular polygonal prism.

[0010] As a preferred solution of the present invention, the number of sides of the polygonal prism is an even number.

[0011] As a preferred solution of the present invention, the shaping roller and the shaping length adjusting member are integrally formed or fixedly connected; the frame is also provided with a second power device for driving the stretching main shaft to rotate.

[0012] As a preferred solution of the present invention, the shaping length adjusting member includes a shaping body arranged on the stretching main shaft and two shaping members adapted to the opposite ends of the shaping body, the shaping member is arranged at the end of the shaping roller close to the shaping body, the shaping member includes a shaping cylinder, a connecting transition cylinder and a sleeve polygonal column assembly connected in sequence, the sleeve polygonal column assembly is plugged into the corresponding shaping body; the shaping body and the two sleeve polygonal column assemblies form the polygonal column.

[0013] As a preferred solution of the present invention, the shaping length adjusting member includes two shaping members arranged on two shaping rollers, the two shaping members are arranged opposite to each other and staggered, and the shaping member includes a shaping cylinder, a connecting transition cylinder and a sleeve polygonal column assembly connected in sequence, and the sleeve polygonal column assemblies are plugged into each other to form the polygonal column.

[0014] As a preferred solution of the present invention, the stretching screw is formed with a positive and negative tooth structure for driving the shaping roller to move axially closer or farther away, and the positive and negative tooth structures are both provided with a slider for passing through the stretching main shaft and adapted to the shaping roller, the shaping part also includes a plug-in cylinder plugged into the end of the shaping roller, the plug-in cylinder is connected to the shaping cylinder, and the end of the shaping cylinder is abutted against the end of the shaping roller, and a clamping groove is formed on the plug-in cylinder to be clamped with the slider.

[0015] As a preferred embodiment of the present invention, the shaping body includes a plurality of first shaping strips and a plurality of second shaping strips staggered along the circumferential direction of the shaping body, the sleeve polygonal column assembly includes a plurality of sleeve polygonal column assembly shaping strips staggered along the circumferential direction of the polygonal column, a plurality of plug-in grooves matched with the shaping strips of the sleeve polygonal column assembly are formed between adjacent first shaping strips and between adjacent second shaping strips, the plurality of plug-in grooves are arranged along the axial direction of the stretching spindle, and the plurality of first shaping strips and the plurality of second shaping strips are respectively plug-fitted with the plurality of sleeve polygonal column assembly shaping strips to form the polygonal column.

[0016] As a preferred solution of the present invention, the connecting transition tube includes a plurality of curved surface segments and a plurality of surface segments alternately arranged along the circumferential direction of the connecting transition tube, and the surface segments are arranged corresponding to the polygonal cylinder; the surface where the connecting transition tube is connected to the polygonal cylinder forms a connecting polygon; the surface segment has one side of the connecting polygon as an edge and is connected to the connecting circle; let V be the vertex of the connecting polygon, P be the point on the connecting circle closest to V, the VP line is a straight line or a curve that is concave or convex relative to the central axis of the stretching main axis, and a plurality of curved surface segments are formed by the VP line wrapping around the central axis of the stretching main axis.

[0017] As a preferred solution of the present invention, the top corners of the polygonal column are chamfered.

[0018] As a preferred solution of the present invention, a plurality of guide rods vertically arranged with the tensioning shaft are provided in the frame, and a movable seat which can move along the length direction of the guide rod is installed on the guide rod, and the power device one, power device two and power device three are all driven by motors and installed on the movable seat; a first transmission gear set for driving the stretching screw to rotate is provided between the power device one and the stretching screw, and a second transmission gear set for driving the stretching spindle to rotate is provided between the power device two and the stretching main shaft; an adjusting screw is provided at the output end of the power device three, and a screw support seat matched with the adjusting screw is installed on the movable seat.

[0019] As a preferred solution of the present invention, the fabric is a fiber fabric.

[0020] A fabric shaping method adopts a fabric shaping device.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the tensioning shaft can achieve stretching in the axial direction of the tensioning shaft through a shaping length adjusting member, so as to stretch the fabric arranged on the tensioning shaft in the axial direction of the tensioning shaft; and the shaping length adjusting member is cleverly provided with a connecting structure of a shaping cylinder, a connecting transition cylinder and a polygonal cylinder. According to the requirements of different fabrics for shaping accuracy, the length difference between the outer circumference of the polygonal cylinder, the outer circumference of the connecting transition cylinder and the outer circumference of the shaping cylinder can be preset to determine the degree of change of the outer circumference when the shaping length adjusting member is stretched or shortened in the axial direction of the tensioning shaft, thereby realizing the control of the change of the outer circumference of the tensioning shaft when it is lengthened or shortened, so that the shaping accuracy of the fabric meets the actual requirements, and the problems of fabric wrinkles, wear, damage and the like caused by excessive change of the outer circumference when the shaping length adjusting member is lengthened or shortened are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the rack;

[0024] Figure 3 It is the control principle diagram of the tension axis;

[0025] Figure 4 It is a schematic diagram of the stretching of two shaped parts;

[0026] Figure 5 It is a structural schematic diagram of the tension axis;

[0027] Figure 6 It is the top view of the tension axis;

[0028] Figure 7 yes Figure 6 Sectional view at point A;

[0029] Figure 8 It is a structural schematic diagram of the shaped part;

[0030] Fig. 9 It is a top view of the shaped part;

[0031] Fig.10 It is the left view of the molded part;

[0032] Fig.11 It is a schematic diagram of the structure of the shaping roller;

[0033] Fig.12 It is a structural diagram of a stereotyped subject;

[0034] Fig.13 It is a schematic diagram of the structure of the stretching screw;

[0035] Fig.14 yes Fig.13 A partial enlarged view of point B in the middle;

[0036] Fig.15 It is a schematic diagram of the structure of the shaped part of the interval-cut edge structure;

[0037] Fig.16 It is a schematic diagram of the structure of connecting cylinders;

[0038] Fig.17 It is a schematic diagram for calculating the circumference of connected cylinders;

[0039] Fig.18 It is a schematic diagram of perimeter calculation of curved and planar segments;

[0040] Fig.19 This is a schematic diagram of the structure of the fixed length adjustment member with half of the structure removed on each side;

[0041] Fig. 20 It is a schematic diagram of the structure of the molded parts with half of the structure removed on each side;

[0042] Figure numerals: frame 1, tensioning shaft 2, stretching screw 3, positive and negative tooth structure 31, slider 32, stretching main shaft 4, shaping body 5, first shaping strip 51, second shaping strip 52, plug-in groove 53, shaping roller 6, shaping length adjustment part 7, shaping part 7a, shaping cylinder 71, connecting transition cylinder 72, polygonal column 73, sleeve polygonal column assembly 731, sleeve polygonal column assembly shaping strip 7311, plug-in cylinder 74, curved surface segment 75, surface segment 76, connecting circle 77, connecting polygon 78, snap-in groove 8, moving seat 11, power unit one 12, power unit two 13, first transmission gear set 14, second transmission gear set 15, power unit three 16, guide rod 17, adjusting screw 18, screw support seat 19. DETAILED DESCRIPTION

[0043] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0044] like Figure 1-Figure 20 As shown, a fabric shaping device includes a frame 1 and two tensioning shafts 2 arranged on the frame 1, the tensioning shaft 2 includes a coaxially arranged stretching screw rod 3 and a stretching main shaft 4, the stretching main shaft 4 is sleeved on the stretching screw rod 3, and two shaping rollers 6 are sleeved on the stretching main shaft 4.

[0045] The two shaping rollers 6 are connected by a shaping length adjusting member 7 which can be stretched or shortened axially along the stretching main shaft 4. The portion of the shaping length adjusting member 7 close to the shaping roller 6 is provided with a shaping cylinder 71, and the end of the shaping cylinder 71 away from the shaping roller 6 is provided with a connecting transition cylinder 72; the end of the connecting transition cylinder 72 away from the shaping cylinder 71 is provided with a polygonal cylinder 73 with adjustable stretching length; the length Lg of the shaping roller 6 is ≥ 0 mm, and the length Lyt of the shaping cylinder 71 is ≥ 0 mm; a power device 12 for driving the stretching screw 3 to rotate is provided on the frame 1 or the stretching main shaft 4, and the power device 1 can be a motor structure.

[0046] It should be noted that, for implementing the technical solution of the present invention, the two shaping rollers 6 connected to the outer shell of the stretching main shaft 4 form a group, and it is necessary for this group of shaping rollers 6 to adopt the connection relationship of the present invention. However, on this basis, any number (greater than or equal to zero) of shaping rollers without the said connection relationship can be added, and any number of groups (greater than or equal to zero) of shaping rollers adopting the said connection relationship can also be added.

[0047] It should be noted that when the stretching length of the polygonal column is adjusted, a part of the surface will be empty, showing a partially edged structure, but the overall polygonal column structure is still maintained.

[0048] The surface where the shaping cylinder 71 and the connecting transition cylinder 72 are connected forms a connecting circumference 77; the outer circumference of the polygonal cylinder 73, the outer circumference of the connecting transition cylinder 72, the outer circumference of the shaping cylinder 71 and the outer circumference of the shaping roller 6 are all less than or equal to the length difference. ; , where R is the radius of the connecting circle 77, N is the number of sides of the polygonal cylinder 73, R≤1000 mm, 3<N≤100.

[0049] The frame 1 is also provided with a power device 16 for controlling the distance between two tensioning shafts 2 in any pair of tensioning shafts 2. The sum of the lengths of adjacent shaping rollers 6 and the shaping cylinder 71 is Lg+Lyt≤1000 mm.

[0050] The frame 1 is also provided with a power device for driving the stretching screw rod 3 to move, and the movement includes entering and exiting the molding cavity, moving in the molding cavity, moving outside the molding cavity, etc.

[0051] The polygonal column 73 is a regular polygonal column, and the number of sides of the polygonal column 73 is an even number. Under the effect of the regular polygonal column and the even number of sides, the relative stability of the polygonal column 73 during the rotation and stretching process is ensured, and the top corners of the polygonal column 73 are chamfered. The chamfer can be a straight line plane chamfer or a circular arc surface chamfer.

[0052] It should be noted that the polygonal prism 73 may be a regular polygonal prism or not, but preferably a regular polygonal prism. The regular polygonal prism structure has the advantages of stable rotation and easy setting and calculation of the outer perimeter length.

[0053] It should be noted that the number of sides of the polygonal prism 73 can be an even number or an odd number, but preferably an even number. During processing, if the method of cutting off each side of the polygonal prism in half is adopted, the number of sides of the polygonal prism 73 can be an odd number or an even number; however, if the method of cutting off the edges of the polygonal prism at intervals is adopted, the cost is lower and the processing is more convenient, but the number of sides of the polygonal prism 73 is required to be an even number.

[0054] It should be noted that According to the needs of the actual use scenario (especially the requirements of the product on precision), select the appropriate number of sides of the polygonal column. By increasing N, the error can be reduced and the precision can be improved. In the preferred case, because the outer circumference of the polygonal column 73 is a regular polygon, the outer circumference of the shaping cylinder 71 is a circle, and the outer circumference of the shaping roller 6 is also a circle, this unique connection method is used to easily set the outer circumference of the polygonal column 73, the outer circumference of the shaping cylinder 71 and the outer circumference of the shaping roller 6, and the length difference is less than or equal to δ, and it can be achieved =0; In general, the outer periphery of the connecting transition tube 72 is an irregular shape. By designing the outer periphery shape of the connecting transition tube 72 and accurate mathematical calculations, the outer periphery of the connecting transition tube 72 can be compared with the outer periphery of the shaping roller 6, and the length difference is less than or equal to δ, and under extreme conditions, it can be achieved =0; when the outer circumference of the polygonal cylinder 73, the outer circumference of the connecting transition cylinder 72, and the outer circumference of the shaping cylinder 71 are compared with the outer circumference of the shaping roller 6, the length difference is less than or equal to δ and δ=0, that is: the outer circumference of the polygonal cylinder 73, the outer circumference of the connecting transition cylinder 72, the outer circumference of the shaping cylinder 71 and the outer circumference of the shaping roller 6 are all equal, and the accuracy reaches the highest at this time.

[0055] The shaping roller 6 is integrally formed or fixedly connected with the shaping length adjusting member 7. It should be noted that the shaping roller 6 and the shaping length adjusting member 7 can be integrally formed, and are not necessarily required to be two parts physically.

[0056] The frame 1 is provided with a power device 2 13 for driving the stretching main shaft 4 to rotate.

[0057] It should be noted that when the fabric is shaped, the stretching spindle 4 may or may not rotate according to the needs of the usage scenario. If it needs to rotate, it is preferred to set a power device 13 in the frame 1 to drive the stretching spindle 4 to rotate.

[0058] Regarding the specific structure of the fixed length adjusting member 7, there are at least two embodiments, which are as follows:

[0059] The first implementation method:

[0060] The shaping length adjusting member 7 includes a shaping body 5 arranged on the stretching main shaft 4 and two shaping members 7a adapted to the opposite ends of the shaping body 5, the shaping member 7a is arranged at the end of the shaping roller 6 close to the shaping body 5, the shaping member 7a includes a shaping cylinder 71, a connecting transition cylinder 72 and a sleeve polygonal column assembly 731 connected in sequence, and the sleeve polygonal column assembly 731 is plugged into the corresponding shaping body 5; the shaping body 5 and the two sleeve polygonal column assemblies 731 form the polygonal column 73.

[0061] At this time, a shaping body 5 that can rotate synchronously with the stretching main shaft 4 can be installed on the stretching main shaft 4, and the shaping piece 7a is inserted into the corresponding shaping body 5. The two shaping pieces 7a are stretched or shortened axially along the stretching main shaft 4 through the insertion depth between the shaping piece 7a and the shaping body 5.

[0062] It should be noted that, in some cases, the shaping body 5 and the stretching main shaft 4 may also rotate asynchronously.

[0063] The second implementation method:

[0064] The shaping length adjusting member 7 includes two shaping members 7a arranged on two shaping rollers 6. The two shaping members 7a are arranged opposite to each other and staggered. The shaping member 7a includes a shaping cylinder 71, a connecting transition cylinder 72 and a sleeved polygonal column assembly 731 which are connected in sequence. The sleeved polygonal column assemblies 731 are plugged into each other to form the polygonal column 73.

[0065] At this time, the insertion depth between the two staggered shaping members 7 a is such that the two shaping members 7 a are axially stretched or shortened along the stretching main axis 4 .

[0066] A corresponding length adjusting member 7 is arranged on the tensioning shaft 2 according to actual needs.

[0067] For the above two embodiments of the length adjusting member 7, when the distance of the sleeved polygonal column assembly 731 itself moving in the axial direction is constant, in the first embodiment, the distance of the length adjusting member 7 being stretched or shortened is twice that of the second embodiment, which has a huge advantage. Therefore, the first embodiment is preferred.

[0068] The two tensioning shafts 2 arranged on the frame 1 are arranged in parallel, and the forming piece 7a and the forming body 5 are combined to form the required forming structure. In actual use, the fabric to be pretreated and shaped is sheathed on the forming structure of the two tensioning shafts 2, and the fabric is stretched axially along the tensioning shaft by the forming piece 7a and the forming body 5. The power device 3 16 controls the distance between the two tensioning shafts 2 to achieve radial stretching of the forming structure of the two tensioning shafts 2, thereby realizing the stretching requirements of the pretreated and shaped cylindrical fabric in both axial and radial directions according to actual needs.

[0069] A positive and negative tooth structure 31 is formed on the stretching screw rod 3 for driving the shaping rollers 6 at both ends of the shaping length adjustment member 7 to move axially synchronously, and a slider 32 is provided on the positive and negative tooth structure 31 for passing through the stretching main shaft 4 and matching with the shaping roller 6. The positive and negative tooth structure 31 is a threaded structure with two sections in opposite directions, and a slider 32 is provided on the two threaded structures in opposite directions that is threadedly connected to the threaded structure.

[0070] It should be noted that, in some cases, the shaping roller 6 and the slider 32 are detachable fixed connection structures (such as clamping, etc.). When working, the shaping roller 6 and the slider 32 are in a fixed connection state, the stretching screw 3 rotates relative to the stretching main shaft 4, the positive and negative tooth structure 31 rotates synchronously with the stretching screw 3, the position of the slider 32 relative to the stretching screw 3 changes, and the position of the shaping roller 6 relative to the stretching screw 3 also changes synchronously, thereby realizing the axial movement of the shaping roller 6 closer or farther. In some cases, during the rotation of the stretching screw 3, when the rotation direction of the slider 32 is limited, the slider 32 can slide along the axial direction of the stretching screw 3, and the slider 32 and the stretching screw 3 form a screw slider movement, and the two sliders 32 on the positive and negative tooth structure 31 always move relative to each other.

[0071] The shaping member 7a also includes a plug-in cylinder 74 plugged into the end of the shaping roller 6. The plug-in cylinder 74 is connected to the shaping cylinder 71, and the end of the shaping cylinder 71 abuts against the end of the shaping roller 6. The shaping roller 6 and the plug-in cylinder 74 are both formed with a clamping groove 8 that is clamped with the slider 32.

[0072] Under the action of the clamping groove 8, the shaping roller 6 and the plug-in cylinder 74 are simultaneously clamped with the slider 32, so that under the movement of the slider 32, the shaping roller 6 and the plug-in cylinder 74 are synchronously driven to move, and the sleeve polygonal column assembly 731 of the shaping piece 7a is always plugged with the shaping body 5, so that when the stretching screw 3 rotates relative to the stretching main shaft 4, the slider 32 moves along the axial direction of the stretching screw 3, thereby driving the shaping roller 6 and the shaping piece 7a to move synchronously along the axial direction of the stretching screw 3, thereby axially stretching the shaping structure formed by the shaping piece 7a and the shaping body 5, and axially stretching the fabric on the shaping structure.

[0073] The shaping body 5 includes a plurality of first shaping strips 51 and a plurality of second shaping strips 52 which are staggered along the circumferential direction of the shaping body 5. The sleeve polygonal column assembly 731 includes a plurality of sleeve polygonal column assembly shaping strips 7311 which are staggered along the circumferential direction of the polygonal column 73. A plurality of plug-in grooves 53 which are compatible with the sleeve polygonal column assembly shaping strips 7311 are formed between adjacent first shaping strips 51 and between adjacent second shaping strips 52. The plurality of plug-in grooves 53 are arranged along the axial direction of the stretching spindle 4. The plurality of first shaping strips 51 and the plurality of second shaping strips 52 are respectively plug-fitted with the plurality of sleeve polygonal column assembly shaping strips 7311 to form the polygonal column 73.

[0074] The connecting transition tube 72 includes a plurality of curved surface segments 75 and a plurality of surface segments 76 alternately arranged along the circumferential direction of the connecting transition tube 72, and the surface segments 76 are arranged corresponding to the polygonal cylinder 73; the surface of the connecting transition tube 72 and the polygonal cylinder 73 is connected to form a connecting polygon 78; the surface segment 76 is connected to the connecting circle 77 with one side of the connecting polygon 78 as an edge; let V be the vertex of the connecting polygon 78, P be the point on the connecting circle 77 closest to V, the VP line is a straight line or a curve that is concave or convex relative to the central axis of the stretching main axis 4, and a plurality of curved surface segments 75 are formed by the VP line wrapping around the central axis of the stretching main axis 4.

[0075] It should be noted that the surface segment 76 may be a plane, a curved surface, or both a plane and a curved surface.

[0076] It should be noted that The calculation process is as follows:

[0077] The two shaping members 7a are matched with each other or the shaping member 7a and the shaping body 5 are matched with each other to form a hexagonal column structure.

[0078] The polygonal column 73 is a formed hexagonal column structure.

[0079] The sleeved polygonal column assembly 731 is a three-sheet structure on a single shaping member 7a, that is, three side sheets of a hexagonal column structure.

[0080] The sleeved polygonal column component shaping strip 7311 is one of the sheet structures on the single shaping piece 7a, that is, one of the side sheets of the formed hexagonal column structure.

[0081] A plurality of first shaping bars 51 and a plurality of second shaping bars 52 are combined to form a hexagonal column structure, and a pin hole connected to the stretching main shaft 4 is formed on the first shaping bar 51 or the second shaping bar 52. Under the action of the pin hole, the shaping body 5 is positioned on the stretching main shaft 4, and the rotation of the stretching main shaft 4 can synchronously drive the rotation of the shaping body 5.

[0082] Since the outer circumference of the polygonal column 73 formed by the shaping body 5 and the sleeved polygonal column assembly 731 is consistent with the outer circumference of the connecting transition cylinder 72, the outer circumference of the shaping cylinder 71 and the outer circumference of the shaping roller 6, the uniformity of the fabric during the axial stretching process is ensured.

[0083] The surface of the shaping cylinder 71 is flush with the surface of the shaping roller 6. The circumference of the surface of the shaping cylinder 71 is set to Xπ. The outer surface widths of the shaping strips 7311, the first shaping strips 51 and the second shaping strips 52 of the sleeve polygonal column assembly are consistent. Then, the outer surface widths of the shaping strips 7311, the first shaping strips 51 and the second shaping strips 52 of the sleeve polygonal column assembly are Xπ / 6. Therefore, the required outer surface widths of the shaping strips 7311, the first shaping strips 51 and the second shaping strips 52 of the sleeve polygonal column assembly can be obtained through the required circumference of the shaping roller 6 surface. The angle between the two opposite sides of the shaping strips 7311, the first shaping strips 51 or the second shaping strips 52 of the sleeve polygonal column assembly is 60°, thereby designing the required shaping strips 7311, the first shaping strips 51 and the second shaping strips 52 of the sleeve polygonal column assembly.

[0084] The connecting transition tube 72 includes a plurality of curved surface segments 75 and a plurality of surface segments 76 alternately arranged along the circumferential direction of the connecting transition tube 72, and the surface segments 76 are arranged corresponding to the polygonal cylinder 73; the surface of the connecting transition tube 72 and the polygonal cylinder 73 is connected to form a connecting polygon 78; the surface segment 76 has one side of the connecting polygon 78 as an edge and is connected to the connecting circle 77; let V be the vertex of the connecting polygon 78, P be the point on the connecting circle 77 closest to V, the VP line is a straight line or a curve that is concave or convex relative to the central axis of the stretching main axis 4, and a plurality of curved surface segments 75 are formed by the VP line wrapping around the central axis of the stretching main axis 4.

[0085] The surface where the shaping cylinder 71 is connected to the connecting transition cylinder 72 forms a connecting circumference 77 , and the surface where the connecting transition cylinder 72 is connected to the polygonal column 73 forms a connecting polygon 78 .

[0086] The shaping length adjusting member 7 is composed of a shaping member 7a. The shaping cylinder 71 is connected to the polygonal column 73 through a connecting transition cylinder 72. The cross-sectional perimeter of the shaping cylinder 71 is equal, and the cross-sectional perimeter of the connecting transition cylinder 72 is nearly "equal" to the cross-sectional perimeter of the shaping cylinder 71. The polygonal column 73 is cut off at intervals or half of each side is cut off. In the implementation case, the regular hexagonal column is cut off at intervals to form a Fig.15 The two shaping parts 7a are pressed Fig.15 The assembly method is combined to form a fixed length adjusting member 7 whose axial length can be extended and retracted. When the fixed length adjusting member 7 is extended and retracted in the axial length direction, the outer circumference of any radial section is "equal".

[0087] like Fig.15 As shown, at this time, the polygonal column 73 is a spaced-off edge structure, and at this time, each socketed polygonal column component shaping strip 7311 on the polygonal column 73 is evenly distributed circumferentially along its own center line.

[0088] like Fig. 20 As shown, at this time, the polygonal column 73 is a half-cut structure on each side, and at this time, the various sleeved polygonal column component shaping strips 7311 on the polygonal column 73 are evenly distributed along the circumferential direction of the polygonal column 73.

[0089] The structure of the connecting transition tube 72 is as follows Fig.16 As shown, the cross section of the connection between the shaping cylinder 71 and the connecting transition cylinder 72 is a connecting circle 77, and the cross section of the connection between the connecting transition cylinder 72 and the polygonal cylinder 73 is a connecting polygon 78. The radial surface of the connecting transition cylinder 72 is a curved surface or a curved surface and a plane, and the outer circumference of the radial cross section is a combination of a circular arc and a straight line. Fig.17 shown.

[0090] Fig.18 It is a partial enlarged view of the cross-section and front view taken along the axial direction through the midpoint of the edge of the connecting polygon 78. V is the vertex of the connecting polygon 78, P is the point on the connecting circle 77 that is closest to V, and the curved surface is obtained by rotating the line segment VP around the central axis. M is the midpoint of the edge of the connecting polygon 78. A plane or curved surface tangent to the connecting circle is made through the edge VMV of the connecting polygon 78, with the tangent point T, to form a cutting surface TVMV. The same cutting method is used to cut the remaining edges of the connecting polygon to form a complete transition body.

[0091] Calculate the perimeter of the transition section under the condition that VP is a straight line and the cutting surface TVMV is a plane:

[0092] Assume that the axial length of the connecting transition tube 72 is S

[0093] The radius of the connecting circle is R (R ≤ 1000)

[0094] The number of sides connecting polygon 78 is N (a natural number 3<N≤100)

[0095] The length of the side of the connecting polygon 78 is Ln

[0096] The radius of the arc is Rs

[0097] The radius of the inscribed circle of the cross section is Ri

[0098] The arc length of the cross section is Lr

[0099] The chord length of the cross section is Ls

[0100] The distance between the cross section and the connecting circle is Xs

[0101] X=Xs / S(0≤x≤1)

[0102] The difference between the circumference of the cross section and the circumference of the connecting circle is Yn

[0103] but:

[0104] When N is infinite, the cross-sectional perimeter is equal to the connecting circle perimeter. When N is 3, the error extreme value between the cross-sectional perimeter and the connecting circle perimeter is the largest. The relationship between the error extreme value and N is: Yn>Yn+1

[0105] For engineering calculations, keep five decimal places, unit: mm, and use the extreme value calculation tool to calculate the extreme value of Yn:

[0106]

[0107] It should be noted that the VP line can be a straight line or a curve; the VMVT surface can be a plane or a curved surface.

[0108] A plurality of guide rods 17 are arranged perpendicularly to the tensioning shaft 2 in the frame 1, and a movable seat 11 which can move along the length direction of the guide rod 17 is installed on the guide rod 17. Power device 1 12, power device 2 13 and power device 3 16 are all driven by motors and installed on the movable seat 11.

[0109] A first transmission gear set 14 for driving the stretching screw 3 to rotate is provided between the power device 12 and the stretching screw 3 , and a second transmission gear set 15 for driving the stretching spindle 4 to rotate is provided between the power device 2 13 and the stretching spindle 4 .

[0110] The first transmission gear set 14 includes a meshing driving gear and a driven gear. The driven gear is installed at the end of the stretching screw 3, and the end of the stretching screw 3 and the driven gear rotate synchronously through a key and a keyway. The driving gear is connected to the output end of the power device 12, so that under the action of the power device 12, the rotation of the stretching screw 3 is driven.

[0111] Similarly, the second transmission gear set 15 includes a meshing driving gear and a driven gear, the driven gear is installed on the stretching main shaft 4, and the stretching main shaft 4 and the driven gear rotate synchronously by means of a key and a keyway, and the driving gear is connected to the output end of the power device 2 13, thereby driving the rotation of the stretching main shaft 4 under the action of the power device 2 13.

[0112] At the same time, under the action of the second power device 13, the rotational differential of the stretching screw rod 3 relative to the stretching main shaft 4 can be controlled.

[0113] An adjusting screw rod 18 is provided at the output end of the power device 3 16 , and a screw rod support seat 19 matched with the adjusting screw rod 18 is installed on the moving seat 11 .

[0114] During actual use, the fabric that needs to be pretreated and shaped is sheathed on the shaping structure of the two tensioning shafts 2. Under the action of axial stretching of the shaping length adjusting member 7, the axial stretching of the fabric is driven, and the power device 3 16 controls the distance between the two tensioning shafts 2 to achieve the expansion of the distance between the shaping structure of the two tensioning shafts 2 and the radial stretching of the fabric, thereby achieving the axial and radial stretching requirements of the pretreated and shaped fabric at the same time according to actual needs.

[0115] The fabric shaping device of this embodiment can be used for various types of fabrics such as fiber fabrics.

[0116] A fabric shaping method adopts a fabric shaping device of this embodiment.

[0117] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0118] Although this article uses more of the figure marks: frame 1, tensioning shaft 2, stretching screw 3, positive and negative tooth structure 31, slider 32, stretching main shaft 4, shaping body 5, first shaping strip 51, second shaping strip 52, plug-in groove 53, shaping roller 6, shaping length adjustment member 7, shaping member 7a, shaping cylinder 71, connecting transition cylinder 72, polygonal column 73, sleeve polygonal column assembly 731, sleeve polygonal column assembly shaping strip 7311, plug-in cylinder 74, curved surface segment 75, surface segment 76, connecting circle 77, connecting polygon 78, snap-in groove 8, moving seat 11, power unit one 12, power unit two 13, first transmission gear set 14, second transmission gear set 15, power unit three 16, guide rod 17, adjusting screw 18, screw support seat 19 and other terms, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; any additional limitations interpreted as them are contrary to the spirit of the present invention.

Claims

1. A fabric shaping device, comprising a frame (1) and a plurality of pairs of tensioning shafts (2) arranged on the frame (1), characterized in that: The tensioning shaft (2) comprises a coaxially arranged stretching screw (3) and a stretching main shaft (4), wherein the stretching main shaft (4) is sleeved on the stretching screw (3); at least two shaping rollers (6) are sleeved on the stretching main shaft (4), and the two shaping rollers (6) are connected by a shaping length adjusting member (7) which can be elongated or shortened along the axial direction of the stretching main shaft (4); a shaping cylinder (71) is provided at a portion of the shaping length adjusting member (7) close to the shaping roller (6), and a connecting transition cylinder (72) is provided at an end of the shaping cylinder (71) away from the shaping roller (6); a polygonal column (73) with adjustable stretching length is provided at an end of the connecting transition cylinder (72) away from the shaping cylinder (71); a length Lg of the shaping roller (6) is greater than 0 mm, and a length Lyt of the shaping cylinder (71) is greater than 0 mm; a power device (12) for driving the stretching screw (3) to rotate is provided on the frame (1) or the stretching main shaft (4).

2. A fabric shaping device according to claim 1, characterized in that: The surface where the shaping cylinder (71) and the connecting transition cylinder (72) are connected forms a connecting circumference (77); the outer circumference of the polygonal column (73), the outer circumference of the connecting transition cylinder (72), the outer circumference of the shaping cylinder (71) and the outer circumference of the shaping roller (6) are all less than or equal to the length difference. δ ; Wherein, R is the radius of the connecting circle (77), N is the number of sides of the polygonal column (73), R≤1000 mm, 3<N≤100.

3. A fabric shaping device according to claim 1, characterized in that: The frame (1) is also provided with a power device three (16) for adjusting the distance between two tensioning shafts (2) in any pair of tensioning shafts (2); the sum of the lengths of the adjacent shaping rollers (6) and the shaping cylinders (71) is Lg+Lyt≤1000 mm.

4. A fabric shaping device according to claim 1, characterized in that: The polygonal prism (73) is a regular polygonal prism.

5. A fabric shaping device according to claim 1, characterized in that: The number of sides of the polygonal prism (73) is an even number.

6. A fabric shaping device according to claim 3, characterized in that: The shaping roller (6) and the shaping length adjusting member (7) are integrally formed or fixedly connected; the frame (1) is also provided with a second power device (13) for driving the stretching main shaft (4) to rotate.

7. A fabric shaping device according to claim 1, characterized in that: The shaping length adjusting member (7) comprises a shaping body (5) arranged on the stretching main shaft (4) and two shaping members (7a) adapted to the opposite ends of the shaping body (5); the shaping member (7a) is arranged at the end of the shaping roller (6) close to the shaping body (5); the shaping member (7a) comprises a shaping cylinder (71), a connecting transition cylinder (72) and a sleeve-joined polygonal column assembly (731) connected in sequence; the sleeve-joined polygonal column assembly (731) is plugged into the corresponding shaping body (5); the shaping body (5) and the two sleeve-joined polygonal column assemblies (731) form the polygonal column (73).

8. A fabric shaping device according to claim 1, characterized in that: The shaping length adjusting member (7) comprises two shaping members (7a) arranged on two shaping rollers (6), the two shaping members (7a) being arranged opposite to each other and staggered, the shaping member (7a) comprising a shaping cylinder (71), a connecting transition cylinder (72) and a sleeved polygonal column assembly (731) connected in sequence, and the sleeved polygonal column assemblies (731) are plugged into each other to form the polygonal column (73).

9. A fabric shaping device according to any one of claims 7-8, characterized in that: The stretching screw rod (3) is formed with a positive and negative tooth structure (31) for driving the shaping roller (6) to move axially closer or farther away, and the positive and negative tooth structure (31) is provided with a slider (32) for passing through the stretching main shaft (4) and matching with the shaping roller (6). The shaping member (7a) also includes a plug-in cylinder (74) plugged into the end of the shaping roller (6), the plug-in cylinder (74) is connected to the shaping cylinder (71), and the end of the shaping cylinder (71) is in contact with the end of the shaping roller (6), and a clamping groove (8) is formed on the plug-in cylinder (74) for clamping with the slider (32).

10. A fabric shaping device according to claim 7, characterized in that: The shaping body (5) comprises a plurality of first shaping strips (51) and a plurality of second shaping strips (52) staggeredly arranged along the circumferential direction of the shaping body (5); the sleeve-joined polygonal column assembly (731) comprises a plurality of sleeve-joined polygonal column assembly shaping strips (7311) staggeredly arranged along the circumferential direction of the polygonal column (73); a plurality of plug-in grooves (53) adapted to the sleeve-joined polygonal column assembly shaping strips (7311) are formed between adjacent first shaping strips (51) and between adjacent second shaping strips (52); the plurality of plug-in grooves (53) are arranged along the axial direction of the stretching main axis (4); the plurality of first shaping strips (51) and the plurality of second shaping strips (52) are respectively plug-jointed with the plurality of sleeve-joined polygonal column assembly shaping strips (7311) to form the polygonal column (73).

11. A fabric shaping device according to claim 2, characterized in that: The connecting transition tube (72) comprises a plurality of curved surface segments (75) and a plurality of surface segments (76) alternately arranged along the circumferential direction of the connecting transition tube (72), wherein the surface segments (76) are arranged corresponding to the polygonal prism (73); the surface of the connecting transition tube (72) and the polygonal prism (73) forms a connecting polygon (78); the surface segment (76) is connected to the connecting circle (77) with one side of the connecting polygon (78) as an edge; V is the vertex of the connecting polygon (78), P is the point on the connecting circle (77) closest to V, and the VP line is a straight line or a curve that is concave or convex relative to the central axis of the stretching main axis (4); and the plurality of curved surface segments (75) are formed by the VP line wrapping around the central axis of the stretching main axis (4).

12. A fabric shaping device according to claim 11, characterized in that: The top corners of the polygonal column (73) are chamfered.

13. A fabric shaping device according to claim 6, characterized in that: The frame (1) is provided with a plurality of guide rods (17) vertically arranged with respect to the tensioning shaft (2); a movable seat (11) movable along the length direction of the guide rod (17) is installed on the guide rod (17); the power device 1 (12), the power device 2 (13) and the power device 3 (16) are all driven by motors and installed on the movable seat (11); a first transmission gear set (14) for driving the stretching screw rod (3) to rotate is provided between the power device 1 (12) and the stretching screw rod (3); a second transmission gear set (15) for driving the stretching spindle (4) to rotate is provided between the power device 2 (13) and the stretching main shaft (4); an adjusting screw rod (18) is provided at the output end of the power device 3 (16); a screw rod support seat (19) adapted to the adjusting screw rod (18) is installed on the movable seat (11).

14. A fabric shaping device according to any one of claims 1-8 or 10 or 12-13, characterized in that: The fabric is a fiber fabric.

15. A fabric shaping method, characterized in that: A fabric shaping device as claimed in any one of claims 1 to 14 is used.

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