Circular loom capable of partial encryption and method for manufacturing weft-knitted sunshade net

Abstract

The present invention relates to a circular loom capable of partial encryption, comprising a circular palm frame group for introducing warp yarns, the palm frame group comprising a plain palm frame group and an interlaced palm frame group; the plain palm frame group comprises at least one plain palm frame; during operation, the number of warp yarns passed through a single plain palm frame is 1-3 times the number of warp yarns passed through a single interlaced palm frame. A method for making a weft-knitted sunshade net, S1, using the above-mentioned circular loom to weave a cylindrical sunshade net; a warp plain woven encrypted area is formed on the sunshade net; S2, a warp cutting is performed along the middle of the plain woven encrypted area of ​​the sunshade net, and all the wefts in the plain woven encrypted area are cut off, thereby obtaining a planar sunshade net. A planar sunshade net can be obtained by cutting and opening the plain woven encrypted area of ​​the cylindrical shade net, thereby realizing the use of a circular loom to make a planar sunshade net.

Description

Technical Field

[0001] The invention relates to a circular loom capable of locally encrypting and a method for manufacturing a weft-knitted sunshade net. Background Art

[0002] At present, sunshade nets are all made through single-needle bed or double-needle bed warp knitting machines. The use of single-needle bed or double-needle bed warp knitting machines is a weaving method of warp knitting into loops, which can directly weave a flat sunshade net; using single-needle bed or double-needle bed warp knitting machines to make sunshade nets has the problems of low output and overall unevenness of the sunshade nets.

[0003] Therefore, the idea is to use a circular loom to make a sunshade net. However, the sunshade net woven by the circular loom is a cylindrical sunshade net, which cannot be used directly. The cylindrical sunshade net needs to be cut open in the warp direction to become a flat sunshade net before it can be used. However, the sunshade net woven by the circular loom is woven in an interlaced manner, and the grid spacing is large. If the fabric is to be cut open, the two warp yarns woven together in an interlaced manner at the cut surface will spread out;

[0004] At present, the method of overlapping and sewing the cut fabric is adopted, which requires a lot of manpower, low production efficiency and high labor intensity. To change this situation, it is necessary to encrypt a certain section of the warp separately, which requires changes based on traditional interweaving. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a circular loom that can be partially encrypted, so as to solve the problem that previous circular looms could not weave partially encrypted cylindrical sunshade nets, resulting in loose fabrics of the cylindrical sunshade nets after being cut open and requiring a large amount of manual folding and sewing.

[0006] At the same time, a method for making a weft-knitted sunshade net is provided to solve the problem that the fabric of the conventional tubular sunshade net becomes loose after being cut open and requires a large amount of manual folding and sewing.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a circular loom capable of partial encryption, comprising a circular palm frame group for introducing warp yarns, wherein the palm frame group comprises a plain palm frame group and an interwoven palm frame group;

[0008] The flat woven palm frame group includes at least one flat woven palm frame;

[0009] During operation, the number of warp yarns passed through a single plain weaving frame is 1-3 times the number of warp yarns passed through a single interwoven frame.

[0010] Furthermore, a single flat weave frame is connected to a flat weave drive mechanism, and the flat weave drive mechanism drives the warp yarns in the flat weave frame to perform up and down opening movements;

[0011] The weft shuttle of the circular loom carries the weft yarn through each warp yarn opening in the plain weaving frame to realize the local warp-direction encrypted plain weaving of the tube cloth woven by the circular loom.

[0012] Furthermore, the flat weaving driving mechanism includes a flat weaving connecting rod, a flat weaving support and a flat weaving cam. The middle part of the flat weaving connecting rod is supported on the flat weaving support. The flat weaving cam is connected to the main shaft of the circular loom. The flat weaving cam is horizontally arranged. The sinusoidal guide rail of the flat weaving cam cooperates with one end of the flat weaving connecting rod. The other end of the flat weaving connecting rod is connected to the flat weaving palm frame. The flat weaving cam rotates to drive the flat weaving lever to swing up and down on the flat weaving support.

[0013] Furthermore, the flat weaving driving mechanism comprises a flat weaving connecting rod, a flat weaving support, an eccentric wheel and a transmission rod, wherein the middle part of the flat weaving connecting rod is supported on the flat weaving support, one end of the flat weaving connecting rod is connected to the flat weaving palm frame, the other end of the flat weaving connecting rod is connected to the upper end of the transmission rod, and the lower end of the transmission rod is connected to the eccentric wheel;

[0014] The eccentric wheel rotates, and drives the flat weaving connecting rod to swing up and down on the flat weaving support through the transmission rod.

[0015] Furthermore, the flat weaving driving mechanism comprises a flat weaving connecting rod, a flat weaving support, a driving cam and a lifting rod, wherein the middle part of the flat weaving connecting rod is supported on the flat weaving support, one end of the flat weaving connecting rod is connected to the flat weaving palm frame, the other end of the flat weaving connecting rod is connected to the upper end of the lifting rod, and the lower end of the lifting rod passes through the bottom plate of the circular loom.

[0016] Four convex curved surfaces and four concave curved surfaces are formed on the outer circumferential surface of the driving cam, and the lower end of the transmission rod is placed on the outer circumferential surface of the driving cam; when the driving cam rotates, the convex curved surfaces and the concave curved surfaces cooperate with the lifting rod to drive the lifting rod to move up and down, so as to drive the flat weaving lever to swing up and down on the flat weaving support.

[0017] Furthermore, the plain woven palm frame group includes 1 plain woven palm frame; and the interwoven palm frame group includes 77 interwoven palm frames.

[0018] On the other hand, a method for making a weft-knitted sunshade net is provided, comprising the following steps:

[0019] S1, using the above-mentioned circular loom capable of partial encryption to weave a tubular sunshade net;

[0020] A flat woven encrypted area is formed on the sunshade net;

[0021] S2. Perform warp cutting along the middle of the plain woven densified area of ​​the sunshade net to cut off all the weft lines of the plain woven densified area, thereby obtaining a planar sunshade net.

[0022] The beneficial effects of the present invention are:

[0023] A circular loom capable of partial encryption is provided, which can weave a tubular shade net with a flat woven encrypted area. A flat sunshade net can be obtained by cutting and opening the flat woven encrypted area of ​​the tubular shade net, thereby realizing the production of a flat sunshade net using a circular loom.

[0024] After the plain woven encrypted area is cut open, the plain woven encrypted area serves as the two end edges of the weft yarn of the planar sunshade net. Since it is a plain woven encrypted area, it can effectively limit the warp yarns woven together in the middle in an interwoven manner, so that the two end edges of the weft yarn of the planar sunshade net will not have the problem of fabric unraveling.

[0025] A method for making a sunshade net is provided. A circular loom capable of partial encryption is used to make a planar sunshade net, which greatly improves the production efficiency of the sunshade net and ensures that the planar sunshade net is not loose, thereby ensuring the quality of the planar sunshade net. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described below in conjunction with the accompanying drawings.

[0027] Figure 1 is a schematic diagram of the circular loom (including the first type of flat weaving drive mechanism) of this embodiment;

[0028] Figure 2 It is a schematic diagram of the palm frame group on a circular loom;

[0029] Figure 3 is a schematic diagram of the second flat weaving drive mechanism;

[0030] Figure 4 is a schematic diagram of the third type of flat weaving drive mechanism;

[0031] Figure 5 It is a side view of a cylindrical sunshade net woven by a circular loom of the present invention;

[0032] Figure 6 It is a schematic diagram of a flat sunshade net after the cylindrical sunshade net is cut open;

[0033] Among them, 1, palm frame group, 1A, interwoven palm frame, 1B, flat woven palm frame, 20, flat woven support, 21, flat woven connecting rod, 22, flat woven cam, 23, transmission rod, 24, eccentric wheel, 25, lifting rod, 26, driving cam, 31, interwoven lever, 32, flat cam, 33, cross cam;

[0034] 4A, cylindrical sunshade net, 4B, flat sunshade net, 41, encrypted area. DETAILED DESCRIPTION

[0035] The present invention will now be further described in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0036] Embodiment 1

[0037] like Figure 1 Figure 2 As shown, a partially encrypted circular loom comprises a circular palm frame group 1, wherein the palm frame group 1 comprises a plain woven palm frame group and an interwoven palm frame group.

[0038] In this embodiment, the plain weaving palm frame group includes one plain weaving palm frame 1B; the interwoven palm frame group includes 77 interwoven palm frames 1A, and the 78 palm frames form a circular shape to enable the warp yarn to be introduced into the circular loom.

[0039] The circular loom is provided with an interweaving drive mechanism for driving the interweaving palm frame 1A to operate. The interweaving drive mechanism includes a horizontally arranged plane cam 32 and a cross cam 33. The plane cam 32 and the cross cam 33 are both connected to the main shaft of the circular loom and driven to rotate by the main shaft of the circular loom. The plane cam 32 is connected to the interweaving lever 31, and the interweaving lever 31 is connected to the interweaving palm frame 1A. The plane cam 32 rotates, and the yarn on the interweaving palm frame 1A is driven to move up and down through the interweaving lever 31, so that the shuttle of the circular loom can carry the yarn through; the cross cam 33 rotates to drive the yarn on the interweaving palm frame 1A to move left and right, so as to realize the interweaving of two adjacent warp yarns. The technology for the interweaving drive mechanism, the 77 interweaving palm frames 1A and the shuttle to work together is the existing technology. In the circular looms currently on the market, the mechanisms involving yarn interweaving are all of this structure.

[0040] The most important thing in this embodiment is to add one flat woven palm frame 1B. The number of flat woven palm frames 1B can be determined according to the actual required width of the densified area 41. In this embodiment, one flat woven palm frame 1B is selected. If the width of the densified area needs to be increased, the number of flat woven palm frames 1B can be increased accordingly. The number of flat woven palm frames 1B is determined according to the actual diameter of the tubular net to be woven.

[0041] The difference between the plain weaving frame 1B and the other interlaced frames 1A is that the plain weaving frame 1B realizes the plain weaving of the warp yarns passing through. When the plain weaving frame 1B is in operation, it only needs to drive the two adjacent yarns in the plain weaving frame 1B to do the up and down opening movement;

[0042] The plain woven palm frame 1B and the interwoven palm frame 1A are both existing mature products. The plain woven palm frame 1B is described in the prior patent (patent number: 200910152905.X, patent name: plastic palm frame for plastic circular loom);

[0043] In this embodiment, a single interwoven palm frame 1A only wears 8 warp yarns in total, and the number of yarns is mainly determined by the size of the mesh; and the plain woven palm frame 1B is used to realize warp yarn encryption, and the number of warp yarns passed through a single plain woven palm frame 1B is 1-3 times the number of warp yarns passed through a single interwoven palm frame 1A. In this embodiment, the number of yarns passed through the plain woven palm frame 1B is 20 warp yarns, and the 20 warp yarns are matched with the weft yarns to form the encrypted area 41 of the tubular sunshade net 4A by plain weaving;

[0044] For the warp and weft yarns of the encrypted area 41, only plain weaving can be chosen. If interweaving is adopted, after the encrypted area 41 is cut in the middle, the interwoven warp yarns are restored and twisted, thereby loosening the entire encrypted area 41. However, this problem will not exist if plain weaving is adopted, and the encrypted area 41 can remain flat after being cut, preventing the entire planar sunshade net 4B from spreading out.

[0045] For a single plain weaving frame 1B, driving the warp yarns passing through the inside to perform the up and down opening operation mainly relies on the connected plain weaving driving mechanism, and the plain weaving driving mechanism drives the warp yarns in the plain weaving frame 1B to perform the up and down opening movement; the weft shuttle of the circular loom carries the weft yarns through each warp yarn opening in the plain weaving frame 1B to realize the local warp encrypted plain weaving of the tube cloth woven by the circular loom.

[0046] There are three types of flat weaving drive mechanisms for the operation of the flat weaving palm frame 1B;

[0047] The first method is the same as the method in which the interweaving frame 1A drives the warp yarns to move up and down, such as Figure 1 As shown, the flat weaving driving mechanism includes a flat weaving connecting rod 21, a flat weaving support 20 and a flat weaving cam 22. The middle part of the flat weaving connecting rod 21 is supported on the flat weaving support 20. The flat weaving cam 22 is connected to the main shaft of the circular loom. The flat weaving cam 22 is horizontally arranged. The sinusoidal guide rail of the flat weaving cam 22 cooperates with one end of the flat weaving connecting rod 21. The other end of the flat weaving connecting rod 21 is connected to the flat weaving palm frame 1B. The flat weaving cam 22 rotates to drive the flat weaving lever to swing up and down on the flat weaving support 20, thereby driving the warp yarn passing through the inside of the flat weaving palm frame 1B to perform up and down opening operations.

[0048] The second method, such as Figure 3 As shown, the flat weaving driving mechanism includes a flat weaving connecting rod 21, a flat weaving support 20, an eccentric wheel 24 and a transmission rod 23. The middle part of the flat weaving connecting rod 21 is supported on the flat weaving support 20. One end of the flat weaving connecting rod 21 is connected to the flat weaving palm frame 1B, and the other end of the flat weaving connecting rod 21 is connected to the upper end of the transmission rod 23. The lower end of the transmission rod 23 is connected to the eccentric wheel 24. The eccentric wheel 24 rotates, and the transmission rod 23 drives the flat weaving connecting rod 21 to swing up and down on the flat weaving support 20, thereby driving the warp yarn passing through the inside of the flat weaving palm frame 1B to perform up and down opening operations.

[0049] The third method, such as Figure 4 As shown, the flat weaving driving mechanism includes a flat weaving connecting rod 21, a flat weaving support 20, a driving cam 26 and a lifting rod 25. The middle part of the flat weaving connecting rod 21 is supported on the flat weaving support 20. One end of the flat weaving connecting rod 21 is connected to the flat weaving palm frame 1B, and the other end of the flat weaving connecting rod 21 is connected to the upper end of the lifting rod 25. The lower end of the lifting rod 25 passes through the bottom plate of the circular loom. Four convex curved surfaces and four concave curved surfaces are formed on the outer circumferential surface of the driving cam 26, and the lower end of the transmission rod 23 is placed on the outer circumferential surface of the driving cam 26; the driving cam 26 rotates, and cooperates with the lifting rod 25 through the convex curved surface and the concave curved surface, driving the lifting rod 25 to move up and down, so as to drive the flat weaving lever to swing up and down on the flat weaving support 20, thereby driving the warp yarn passing through the inside of the flat weaving palm frame 1B to perform up and down opening operations.

[0050] All three driving modes can drive the yarn in the plain-woven palm frame 1B to make an upward and downward opening movement, and cooperate with the weft yarn carried by the shuttle in the circular loom to realize the local plain weaving encryption of the tubular sunshade net 4A.

[0051] The circular loom of the present invention is an improvement on a traditional interweaving machine (a type of circular loom). The circular loom is equipped with 78 interweaving palm frames 1A, one of which is replaced by a plain weaving palm frame 1B. At the same time, it is ensured that the number of warp yarns worn by the plain weaving palm frame 1B is 1-3 times the number of warp yarns worn by the other single interweaving palm frames 1A, ensuring that the encrypted area 41 has sufficient warp yarns. A set of driving mechanisms is separately configured for the plain weaving palm frame 1B to drive it, so as to realize plain weaving in the encrypted area 41.

[0052] The cylindrical sunshade net 4A processed by the circular loom of the present invention is as follows Figure 5 As shown, it includes a densified area 41 arranged in the longitudinal direction, and the densified area 41 is opened to obtain a flat sunshade net, such as Figure 6 As shown, the encrypted area 41 is divided into two, which effectively prevents the two ends of the planar sunshade net 4B from becoming loose.

[0053] The circular loom of the present invention realizes the use of the circular loom to manufacture the planar sunshade net 4B, thereby greatly improving the production efficiency and production quality of the sunshade net.

[0054] Embodiment 2

[0055] A method for making a weft-knitted sunshade net comprises the following steps:

[0056] S1, using the above-mentioned circular loom capable of partial encryption to weave a tubular sunshade net 4A;

[0057] A warp plain woven encrypted area 41 is formed on the tubular sunshade net 4A;

[0058] S2. Perform warp cutting along the middle of the plain woven densified area 41 of the sunshade net to cut off all the weft lines of the plain woven densified area 41, thereby obtaining a planar sunshade net.

[0059] The sunshade net manufacturing method of the present invention realizes the sunshade net manufacturing by a circular loom, improves the manufacturing efficiency of the sunshade net, and also makes the manufactured planar sunshade net 4B smoother.

[0060] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A method for making a weft-knitted sunshade net, characterized in that: The following steps are involved: S1, use a circular loom to weave a tubular sunshade net; The sunshade net forms a warp plain weave encrypted area; S2, cutting along the middle of the plain woven dense area of ​​the sunshade net in the warp direction, isolating all the weft lines of the plain woven dense area, thereby obtaining a planar sunshade net; The circular loom comprises at least one flat weaving palm frame; During operation, the number of warp yarns passing through a single plain weaving frame is 1-3 times the number of warp yarns passing through a single interlaced frame; the single plain weaving frame is connected to a plain weaving drive mechanism, and the plain weaving drive mechanism drives the warp yarns in the plain weaving frame to make up and down opening movements; the weft shuttle of the circular loom carries the weft yarns through each warp yarn opening in the plain weaving frame to achieve local warp encrypted plain weaving of the tube cloth woven by the circular loom.

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