A cam, a heald adjusting mechanism for a circular weaving machine, and a twill six-shaft circular weaving machine

Abstract

The application discloses a cam, a heald adjusting mechanism and a twill six-shaft circular weaving machine. The cam comprises an inner roller connected with a driving mechanism and an outer roller located on the outside of the inner roller. The outer roller is coaxial with the inner roller. Three circumferential guide slides for driving a heald frame assembly are arranged on the outer circumferential side of the outer roller. The guide slides are radially divided into a first slide, a second slide and a third slide. The 0° positions of the first slide, the second slide and the third slide are aligned. The first slide, the second slide and the third slide are formed by different slide sections in a specific arrangement combination. Each guide slide is matched with the heald frame assembly. Three groups of healds pass through six heald shifting sections during one rotation of the cam, and six times of heald shifting weaving with weft threads are performed. The weaving state code of the healds along the length direction is 110-011-101-110-011-101, and the texture weaving is alternated and the weaving efficiency is high.

Description

Technical Field

[0001] This application relates to circular looms, and more particularly to circular loom cams, heddle wire adjustment mechanisms, and twill six-shuttle circular looms. Background Technology

[0002] Circular looms, as an important textile equipment, play a vital role in industrial production and daily life. With the market's increasing demands for weaving quality and production efficiency, various types of circular looms are emerging, especially with the growing need for complex pattern weaving, leading to a greater emphasis on precise control and efficient operation in the design of circular looms.

[0003] Currently, circular looms mainly use cams to drive the heald frame assembly to achieve the lifting and lowering of the healds, enabling staggered weaving between the healds and the warp. However, the existing cams use sinusoidal or cosine tracks, resulting in a single heald weaving code during cam-driven operation: 10101010 or 110011001100 along the length (where 1 represents the state code above the warp and 0 represents the state code below the warp). To obtain a heald weaving state of 110-011-101-110-011-101 along the length, a cantilever or other mechanism with a warp adjustment function is needed, making the circular loom structure more complex. This can easily become a new point of failure under high-speed weaving, affecting and restricting production efficiency. Summary of the Invention

[0004] To efficiently produce woven fabrics in the heddle braid state of 110-011-101-110-011-101, a circular loom cam, a heddle adjustment mechanism, and a twill six-shuttle circular loom are provided.

[0005] The first inventive objective of this invention is achieved through the following technical solution: A circular loom cam includes an outer wheel located on the outer side of an inner roller connected to a drive mechanism. The outer wheel is coaxial with the inner wheel. Three circumferentially arranged guide rails for driving a heald frame assembly are provided on the outer circumferential side of the outer wheel. The guide rails are obtained by arranging and combining different rail segments; the rail segments include: Corresponding to the positive ascending segment of the sine curve trajectory from 0 to π / 2, The peak segment of the wave remains flat. Corresponding to the positive descending segment of the sine curve π / 2 to π. This corresponds to the negative descending segment of the trajectory of the sine curve π to 3π / 2. Flatten the valley segment that maintains the wave trough value. Corresponding to the negative rising segment of the sine curve trajectory from 3π / 2 to 2π. The sequence first descends and then rises, with the lowest point being the misaligned section located in the middle and higher than the initial point of the rising segment. The guide slide is divided into a first slide, a second slide, and a third slide in the radial direction, and the 0° positions of the first slide, the second slide, and the third slide are aligned in the circumferential direction; The first slide 0-180° is a series of sequentially connected segments along the circumference: positive rise segment, peak segment, positive fall segment, positive rise segment, peak segment, positive fall segment, negative fall segment, valley segment, and negative rise segment. The first slide 0-180° repeats the first slide 180-360°. The second slide 0-180° is a series of negative descending segments, valley segments, negative rising segments, positive rising segments, peak segments, positive descending segments, positive rising segments, peak segments, and positive descending segments connected sequentially along the circumference. The second slide 0-180° repeats the first slide 180-360°. The third slide 0-180° is a series of sequentially connected segments along the circumference: positive rise segment, peak segment, positive fall segment, negative fall segment, valley segment, negative rise segment, positive rise segment, peak segment, and positive fall segment. The third slide 0-180° repeats the first slide 180-360°. In the first, second, and third slides, the transition points between the ascending and descending sections are replaced with staggered wire sections. After the replacement, the circumferential angles occupied by the ascending, staggered wire, and descending sections are equal to the sum of the circumferential angles occupied by the replaced ascending and descending sections individually.

[0006] By adopting the above technical solution, the cam is used in conjunction with the heald frame assembly. Each guide slide is equipped with a heald frame assembly, and a set of heald wires are hung on the top of each heald frame assembly. The heald frame assembly is driven by the guide slide to raise and lower the heald wires. Here, the heald wire driven to rise and fall by the first slide is denoted as the first wire, the heald wire driven to rise and fall by the second slide is denoted as the second wire, and the heald wire driven to rise and fall by the third slide is denoted as the third wire. Driven by the rotation of the cam, the first wire, the second wire, and the third wire pass through six staggered wire segments during one rotation of the cam, and perform six staggered wire weavings with the horizontal wires. 1 is the state code above the horizontal wire, and 0 is the state code below the horizontal wire. This results in a texture weaving pattern with alternating weaving state codes of 110-011-101-110-011-101 along the length direction of the heald wires, and the weaving efficiency is high.

[0007] Optionally: The misaligned wire segment is a symmetrical smooth curve.

[0008] Optional: The misaligned wire segment is a parabolic trajectory.

[0009] By adopting the above technical solution, the guide slide is smoother during the lifting and lowering of the heald frame assembly driven by the misaligned wire section, reducing the possibility of wire breakage, reducing downtime, and improving production efficiency.

[0010] Optional: The first slide is as follows: The 0-24° range is the positive ascending phase. The peak value range is 24–36°. The 36-60° range is the positive descending segment. The positive rise segment is from 60° to 84°. The peak value range is 84–96°. The 96-120° range is a positive descending segment. The 120-144° range is a negative descent segment. The trough range is between 144° and 156°. The 156-180° range is the negative rise segment. The 56-64° section transitions from a staggered wire segment; The second slide is as follows: The 0-24° range is a negative descent segment. The trough range is between 24° and 36°. The 36-60° range is the negative rise segment. The positive rise segment is from 60° to 84°. The peak value range is 84–96°. The 96-120° range is a positive descending segment. The 120-144° range is the positive ascent segment. The peak value range is 144–156°. The 156-180° range is a positive descending segment. The 116-124° section transitions from a staggered wire segment; The third slide is as follows: The 0-24° range is the positive ascending phase. The peak value range is 24–36°. The 36-60° range is the positive descending segment. The negative descent range is from 60° to 84°. The valley range is between 84° and 96°. The 96-120° range is the negative rise segment. 120–144° is the positive ascending segment. The peak value range is 144–156°. The 156-180° range is a positive descending segment. The transitions between 176–184° and 356–4° are achieved by interlaced wire segments.

[0011] By adopting the above technical solution, the circumferential angles occupied by the lifting, lowering, flat slide section and misaligned section are optimal, the braiding process is smooth, and the phenomenon of broken or misaligned wires is minimized.

[0012] The second objective of this invention is achieved through the following technical solution: A heald frame adjustment mechanism includes a heald frame assembly, a lifting assembly, and the aforementioned cam. The heald frame assembly is divided into a first heald frame, a second heald frame, and a third heald frame according to their positions. The number of the first, second, and third heald frames and the number of lifting components are equal and there are multiple of them. The first set of frames is arranged in a circular array around the center of the camshaft. The second heald frames are arranged in a circular array around the center of the camshaft and are located outside the first heald frames. The third heald frames are arranged in a circular array around the center of the camshaft and are located outside the second heald frames. The lifting assembly includes a vertical guide rod, a first drive seat fixed to the first heald frame, a second drive seat fixed to the second heald frame, and a third drive seat fixed to the third heald frame. The first drive seat, the second drive seat, and the third drive seat are all vertically slidably connected to the guide rod. The first drive seat includes a first drive block inserted into the first slide rail; The second drive seat includes a second drive block inserted into the second slide rail; The third drive seat includes a third drive block inserted into the third slide rail.

[0013] Optionally: the heald frame assembly includes a heald plate for hanging the heald wires and a vertical heald rod, with the heald plate fixed to the heald rod; the third drive seat is located below the second drive seat; The third drive seat is fixed to the heddle rod of the third heddle frame, and the second drive seat is fixed to the heddle rod of the second heddle frame; The second drive seat is also vertically slidably connected to the heald rod of the third heald frame.

[0014] Optionally: the heald frame assembly includes a heald plate for hanging the heald wires and a vertical heald rod, with the heald plate fixed to the heald rod; the second drive seat is located below the first drive seat; The second drive seat is fixed to the heald rod of the second heald frame; The first drive seat is fixed to the heald rod of the first heald frame; The first drive seat is also vertically slidably connected to the heald rod of the second heald frame.

[0015] Optionally: the heald frame assembly includes a heald plate for hanging the heald wires and a vertical heald rod, the heald plate being fixed to the heald rod; the second drive seat is below the first drive seat, and the third drive seat is located below the second drive seat; The first drive seat is also vertically slidably connected to the heald rod of the second heald frame, and the second drive seat is also vertically slidably connected to the heald rod of the third heald frame.

[0016] By adopting the above technical solution, during the lifting and lowering process of the first heald frame, the second heald frame, and the third heald frame, the heald rod of the third heald frame provides guidance and reduces vibration for the first drive seat and the second drive seat, and the heald rod of the second heald frame provides guidance and reduces vibration for the first drive seat. This reduces the possibility of repeated horizontal shaking of the yarn on the first heald frame, the second heald frame, and the third heald frame during the lifting and lowering process, resulting in higher weaving tightness and better product strength.

[0017] The third inventive objective of this invention is achieved through the following technical solution: A six-shuttle twill circular loom includes the aforementioned circular loom cam or the aforementioned heddle wire adjustment mechanism.

[0018] By adopting the above technical solution, a texture with alternating weaving status codes of 110-011-101-110-011-101 along the length direction of the heddle can be stably and efficiently woven.

[0019] In summary, this application has at least the following beneficial effects: The three sets of guide slides of the cam are used in conjunction with the heddle frame assembly, and the circular loom can obtain a textured weaving with alternating weaving status codes of 110-011-101-110-011-101 along the length direction of the heddle (1 for above the horizontal warp and 0 for below the horizontal warp) and high weaving efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the cam structure; Figure 2 This is a diagram showing the unfolded guide rail on the outer wheel. Figure 3 To guide the track of the heald wires on the guide rail and to match the heald frame assembly Figure 1 ; Figure 4 To guide the track of the heald wires on the guide rail and to match the heald frame assembly Figure 2 ; Figure 5 This is a schematic diagram of the heddle wire adjustment mechanism. Figure 6 This is a structural diagram of the lifting assembly and the heald frame assembly; Figure 7 This is a structural schematic diagram of the lifting assembly; Figure 8 This is a schematic diagram of a circular loom.

[0021] Reference numerals: 1. Rotating shaft; 2. Frame; 21. Structure; 22. Baffle; 3. Heddle wire adjustment mechanism; 31. Cam; 311. Inner wheel; 312. Outer wheel; 313. Hub; 314. Guide slide; 314a. First slide; 314b. Second slide; 314c. Third slide; 3141. Baseline ring; 3142. Positive rise section; 3143. Peak section; 3144. Positive fall section; 3145. Negative fall section; 3146. Valley section; 3147. Negative rise section; 3148. Misalignment section; 32. Heddle frame assembly; 321. Heddle rod; 322. Heddle wire plate; 3221. 32a. Thread inlet; 32b. First heald frame; 32c. Third heald frame; 33. Lifting assembly; 331. Guide rod; 332. Drive seat; 332a. First drive seat; 332b. Second drive seat; 332c. Third drive seat; 3321. First drive block; 3322. Second drive block; 3323. Third drive block; 3324. First through hole; 3325. Second through hole; 3326. First fixing hole; 3327. Third through hole; 3328. Second fixing hole; 3329. Third fixing hole; 4. Horizontal thread adjustment mechanism; 41. Flywheel; 42. Shuttle. Detailed Implementation

[0022] The following embodiments are further illustrated in conjunction with the accompanying drawings.

[0023] Example 1 As attached Figure 1 As shown, a circular loom cam includes an inner wheel 311 and an outer wheel 312. The outer wheel 312 is coaxially disposed outside the inner wheel 311, and the outer wheel 312 and the inner wheel 311 are connected and fixed by a hub 313. The number of hubs 313 depends on the size of the outer wheel 312. The larger the outer diameter and the greater the weight of the outer wheel 312, the more hubs 313 are required. In this case, there are six hubs 313.

[0024] The outer circumferential side of the outer wheel 312 is provided with three guide slides 314 arranged circumferentially. The three guide slides 314 are named first slide 314a, second slide 314b and third slide 314c in sequence along the axial direction of the outer wheel 312, and the first slide 314a, second slide 314b and third slide 314c are aligned at 0° position in the circumferential direction.

[0025] The guide slide 314 has undulations along the circumference, with rises and falls, and flat sections maintaining peaks or troughs. Due to the undulations of the guide slide 314, it is easy to describe its undulations. Here, the direction along the outer wheel 312 axis from the first slide 314a to the third slide 314c is defined as from top to bottom, that is, the outer wheel 312 axis is vertical, the first slide 314a is located above the third slide 314c, and the peaks of the guide slide 314 are on top and the troughs are on the bottom.

[0026] As attached Figure 1 and attached Figure 2 As shown, based on the crests and troughs, the guide rail 314 has a reference loop 3141 (blue), which is coaxial with the outer wheel 312 and the height difference from the reference loop to the crests and troughs is equal.

[0027] As attached Figure 2 As shown, based on the baseline loop 3141, peaks, troughs, and rising and falling trends, the guide slide 314 has multiple standard slide segments. The first slide 314a, the second slide 314b, and the third slide 314c are formed by the arrangement and combination of different slide segments.

[0028] The slide section includes a positive ascending section 3142, a peak section 3143, a positive descending section 3144, a negative descending section 3145, a trough section 3146, and a negative ascending section 3147.

[0029] The positive rising segment 3142, the positive falling segment 3144, the negative falling segment 3145, and the negative rising segment 3147 are all sinusoidal curve trajectories.

[0030] The rising segment 3142 starts from the reference loop 3141 and rises to the peak, corresponding to the trajectory of the sine curve 0 to π / 2.

[0031] The positive descending segment 3144 descends from the peak to the baseline loop 3141, corresponding to the trajectory of the sine curve π / 2 to π.

[0032] The negative descent segment 3145 starts from the baseline loop 3141 and descends to the trough, corresponding to the trajectory of the sine curve π~3π / 2.

[0033] The negative rising segment 3147 rises from the trough to the baseline loop 3141, corresponding to the trajectory of the sine curve π / 2 to π.

[0034] Peak segment 3143 is a flat sustained peak value.

[0035] Valley segment 3146 is a flat, sustained valley value.

[0036] The sliding section in the first slide rail 314a is as follows: 0–24° is the positive rising segment 3142, 24–36° is the peak segment 3143, 36–60° is the positive falling segment 3144, 60–84° is the positive rising segment 3142, 84–96° is the peak segment 3143, 96–120° is the positive falling segment 3144, 120–144° is the negative falling segment 3145, 144–156° is the trough segment 3146, 156–180° is the negative rising segment 3147; 180°–360° is the same as 0–180°.

[0037] The sliding section in the second slide rail 314b is as follows: 0–24° is the negative decreasing segment 3145, 24–36° is the trough segment 3146, 36–60° is the negative increasing segment 3147, 60–84° is the positive increasing segment 3142, 84–96° is the peak segment 3143, 96–120° is the positive decreasing segment 3144, 120–144° is the positive increasing segment 3142, 144–156° is the peak segment 3143, 156–180° is the positive decreasing segment 3144; 180°–360° is the same as 0–180°.

[0038] The sliding section in the third slide rail 314c is as follows: 0–24° is the positive rising segment 3142, 24–36° is the peak segment 3143, 36–60° is the positive falling segment 3144, 60–84° is the negative falling segment 3145, 84–96° is the trough segment 3146, 96–120° is the negative rising segment 3147, 120–144° is the positive rising segment 3142, 144–156° is the peak segment 3143, 156–180° is the positive falling segment 3144, and 180°–360° is the same as 0–180°.

[0039] As attached Figure 1 and attached Figure 2 As shown, the slide section also includes a specific staggered section 3148. The staggered section 3148 is a key section for changing the folding order of the heddles. It is a symmetrical, concave curve that first descends and then rises, with its lowest point higher than the reference loop line 3141. The curve trajectory of the staggered section 3148 is preferably parabolic, which can smoothly transition and reduce jamming and wear of the cam 31 during drive operation.

[0040] When the ascending section 3142 and the descending section 3144 are joined in the first slide rail 314a, the second slide rail 314b, and the third slide rail 314c, the transition area is replaced by the misaligned section 3148. The circumferential angle occupied by the misaligned section 3148 is reduced by the degrees of the ascending section 3142 and the descending section 3144 on both sides, that is... After replacement, the circumferential angles occupied by the rising section 3142, the misaligned section 3148, and the falling section 3144 are equal to the sum of the circumferential angles occupied by the replaced rising section 3142 and falling section 3144 individually. The circumferential angle occupied by the misaligned section 3148 can be adjusted according to the size of the outer wheel 312. Here, the misaligned section 3148 occupies 8°. The trajectory of the rising section 3142 connected to the misaligned section 3148 is changed to a sine curve trajectory corresponding to 0.083π to π / 2, and the trajectory of the falling section 3144 connected to the misaligned section 3148 is changed to a sine curve trajectory corresponding to π / 2 to 9.834π.

[0041] In the first slide 314a, 56–64° and 236–244° are misaligned sections 3148; in the second slide 314b, 116–124° and 296–304° are misaligned sections 3148; and in the third slide 314c, 356–4° and 176–184° are misaligned sections 3148.

[0042] The slide sections of the first slide 314a, the second slide 314b, and the third slide 314c can also be found in Table 1 below for comparison.

[0043] Note: There is a misaligned section 3148 between "positive descending section 3144*" and "positive ascending section 3142*".

[0044] In other embodiments, the circumferential angles occupied by the peak segment 3143 and the valley segment 3146 can be increased or decreased, and the circumferential angle ratios of other slide segments can be increased proportionally to make up 360°. The speed of the lifting and lowering strokes can be adjusted in turn to adapt to different toughness of the yarn materials and avoid the problem of frequent yarn breakage caused by excessively fast lifting and lowering strokes.

[0045] Combined with appendix Figures 2-4 As can be seen, the circular loom cam in this embodiment is used in conjunction with the heald frame assembly. Each guide slide 314 is equipped with a heald frame assembly, and a set of heald yarns are hung on the top of each heald frame assembly. The heald frame assembly is driven by the guide slide 314 to move the heald yarns up and down. Here, the heald yarns driven up and down by the first slide 314a are denoted as the first yarn (marked in dark blue), the heald yarns driven up and down by the second slide 314b are denoted as the second yarn (marked in red), and the heald yarns driven up and down by the third slide 314c are denoted as the third yarn (marked in magenta).

[0046] The height of the first wire is denoted as H1, and the height of the first wire is h1 at the peak segment 3143 of the first slide rail 314a; the height of the second wire is denoted as H2, and the height of the second wire is h2 at the peak segment 3143 of the second slide rail 314b; the height of the third wire is denoted as H3, and the height of the third wire is h3 at the peak segment 3143 of the third slide rail 314c; h1 = h2 = h3.

[0047] Driven from the outer wheel at position 3120°, the first, second, and third threads intersect with the horizontal thread as follows: at 0°, the first and second threads are at the same height, and the third slide 314c is located at the lowest point of the interlaced thread section 3148, so the third thread is above the first and second threads.

[0048] Between 0° and 24°, the first and third filaments gradually rise until they are at the same height, while the second filament descends.

[0049] Between 24° and 36°, keep the first and third filaments on top and the second filament on the bottom.

[0050] Between 36° and 56°, the first and third filaments begin to descend, while the second filament begins to ascend.

[0051] Between 56° and 64°, within this range, the first slide 314a enters the staggered section 3148. The first thread first descends and then rises again. The second thread enters the positive rise section 3142 from the negative rise section 3147 and continues to rise. The third thread enters the negative fall section from the positive fall section and continues to fall. Since the lowest point of the staggered section 3148 is higher than the reference loop 3141, at 60°, the first thread descends to the lowest point of this range and is higher than the third thread, creating a gap between the first and third threads. At this time, the second and third threads are at the same height, with the second thread moving upward and the third thread moving downward. At this time, the horizontal thread enters below the first thread. After 60°, the first and second threads continue to move upward, and the third thread moves downward. The horizontal thread continues to pass through the gap below the second thread and above the third thread, thus achieving staggered weaving. 1 represents the state code above the horizontal thread, and 0 represents the state code below the horizontal thread, represented sequentially by the first, second, and third threads. The weaving state code obtained by the heald after 56° to 64° is 110. Similarly, through the misaligned section 3148 of the second slide 314b at 116-124°, the first and second threads go down, and the third thread goes up. At 120°, the second thread is on top and the first thread is on the bottom. After 120°, the second and third threads continue to go up and down, and the first thread goes down, thus realizing the second misaligned weaving. The weaving status code of the heddle is 011. The third staggered weaving is achieved through the staggered section 3148 of the third slide 314c at 176-184°, and the weaving status code of the heddle is 101. The fourth interlacing weaving is achieved through 236-244°, and the weaving status code of the heddle is 110; The fifth interlacing weaving is achieved through a 296-304° angle, and the weaving status code of the heddle is 011. The sixth interlacing weaving is achieved by 356-4°, and the weaving status code of the heddle is 101; As a result, the cam 31 rotates once, realizing six staggered weavings of the three sets of heddle frame components. The weaving efficiency is high and the woven heddle wires have an alternating texture of 110-011-101-110-011-101 along the length direction.

[0052] Example 2 As attached Figure 5 As shown, a heddle wire adjustment mechanism includes a cam 31, a heddle frame assembly 32, and a lifting assembly 33 as described in Embodiment 1.

[0053] There are multiple lifting components 33, which are arranged in a circle around the outside of the cam 31 with the axis of the cam 31 as the axis.

[0054] As attached Figure 6 and attached Figure 7 As shown, the lifting assembly 33 includes two vertical guide rods 331. Three drive seats 332 are slidably connected to the two guide rods 331. The drive seats 332 are referred to as the first drive seat 332a, the second drive seat 332b, and the third drive seat 332c from top to bottom.

[0055] The first drive seat 332a has a first drive block 3321 on the side facing the outer wheel 312, the second drive seat 332b has a second drive block 3322 on the side facing the outer wheel 312, and the third drive seat 332c has a third drive block 3323 on the side facing the outer wheel 312.

[0056] The first drive block 3321, the second drive block 3322, and the third drive block 3323 are all cylinders with horizontal axes perpendicular to the axis of the outer wheel 312. The diameters of the first drive block 3321, the second drive block 3322, and the third drive block 3323 are equal to the width of the guide slide 314. The first drive block 3321 is inserted into the first slide 314a, the second drive block 3322 is inserted into the second slide 314b, and the third drive block 3323 is inserted into the third slide 314c. Thus, when the cam 31 rotates, the first drive block 3321, the second drive block 3322, and the third drive block 3323 are pushed by the guide slide 314 and rise or fall accordingly.

[0057] Furthermore, a first through hole 3324, a second through hole 3325, and a first fixing hole 3326 are vertically through the first drive seat 332a. The axes of the first through hole 3324, the second through hole 3325, the first fixing hole 3326, and the outer wheel 312 are located in the same vertical plane.

[0058] The second drive seat 332b is located directly below the first drive seat 332a, and has a third through hole 3327 coaxial with the first through hole 3324 and a second fixing hole 3328 coaxial with the second through hole 3325.

[0059] The third drive seat 332c is located directly below the second drive seat 332b, and has a third fixing hole 3329 that is coaxial with the first through hole 3324.

[0060] The heald frame assembly 32 includes a vertical heald rod 321 and a heald plate 322 mounted on the upper end of the heald rod 321. The number of heald frame assemblies 32 is three times that of the lifting assembly 33. They are arranged in three layers around the outside of the cam 31, with the heald frame 32a, the second heald frame 32b, and the third heald frame 32c arranged from the inside out according to their position. Each of the first heald frame 32a, the second heald frame 32b, and the third heald frame 32c located at the same circumferential angle corresponds to one lifting assembly 33.

[0061] The lower end of the heddle rod 321 of the first heddle frame 32a passes through the first fixing hole 3326 from top to bottom and is fixed to the first drive seat 332a.

[0062] The lower end of the heddle rod 321 of the second heddle frame 32b passes through the second through hole 3325 and the second fixing hole 3328 from top to bottom, and is fixed to the second drive seat 332b.

[0063] The lower end of the heald rod 321 of the third heald frame 32c passes through the first through hole 3324, the third through hole 3327 and the third fixing hole 3329 from top to bottom, and is fixed to the third drive seat 332c. The fixing method between the lower end of the heald rod 321 and the drive seat 332 can be a snap-fit ​​or bolt connection. Here, the drive seat 332 is fixed by a bolt passing through the side and threaded to the side of the heald rod 321.

[0064] The upper edge of the heddle board 322 has openings for laying the wires. The number of openings can be determined according to actual needs; here, there are six.

[0065] Therefore, in the second embodiment, when the outer wheel 312 is working, it pushes the drive seat 332, which in turn drives the first heald frame 32a, the second heald frame 32b, and the third heald frame 32c to rise and fall, causing the heald wires hanging on them to interweave, thus realizing the weaving process. The ineffective swing arm makes the heald wire adjustment mechanism 3 more compact and reduces the floor space.

[0066] Furthermore, during the lifting and lowering process of the first heald frame 32a, the second heald frame 32b, and the third heald frame 32c, the heald rod 321 of the third heald frame 32c provides guidance and reduces vibration for the first drive seat 332a and the second drive seat 332b, and the heald rod 321 of the second heald frame 32b provides guidance and reduces vibration for the first drive seat 332a. This reduces the possibility of repeated horizontal shaking of the yarn on the first heald frame 32a, the second heald frame 32b, and the third heald frame 32c during the lifting and lowering process, resulting in higher weaving tightness and better product strength.

[0067] Example 3 As attached Figure 8 As shown, a twill six-shuttle circular loom includes a rotating shaft 1, a frame 2, a heddle wire adjustment mechanism 3 and a cross-wire adjustment mechanism 4 as described in Example 2.

[0068] The rotating shaft 1 is the power shaft of the circular loom, located vertically at the center of the circular loom. The frame 2 is located outside the rotating shaft 1, and includes a ring-shaped frame 21 and baffles 22 fixed to the outer surface of the frame 21.

[0069] The cam 31 of the heddle wire adjusting mechanism 3 is coaxially sleeved on the rotating shaft 1 and rotates with the rotating shaft 1.

[0070] The lifting assembly 33 and the heald frame assembly 32 are mounted on the frame 21. The lifting assembly 33 is located inside the frame 21. The heald frame assembly 32 is located above the frame 21, and the lower end of the heald rod 321 is inserted into the frame 21 and connected to the lifting assembly 33.

[0071] The horizontal wire adjustment mechanism 4 includes a flywheel 41 coaxially fixed to the upper end of the rotating shaft 1 and a shuttle 42 mounted on the flywheel 41. There are six shuttles 42 arranged in a circular array around the rotating shaft 1, which are used to install the horizontal wire.

[0072] When the circular loom of this application is started, the rotating shaft 1 rotates, which drives the shuttle 42 to rotate and the heddle frame assembly 32 to rise and fall alternately. This enables the alternating twill weaving of the heddle wires along the length direction in the pattern 110-011-101-110-011-101, resulting in a braided tube with high structural strength and good weaving precision, and high production efficiency.

[0073] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of protection claimed by the present invention, they are protected by patent law.

Claims

1. A circular loom cam, comprising an inner wheel (311) connected to a drive mechanism and an outer wheel (312) located on the outer side, wherein the outer wheel (312) is coaxial with the inner wheel (311), characterized in that: The outer wheel (312) has three circumferentially arranged guide slides (314) on its outer peripheral side for driving the heald frame assembly (32). The guide slides (314) are obtained by arranging and combining different slide segments. The slide sections include: This corresponds to the rising segment (3142) of the sine curve trajectory from 0 to π / 2. The peak segment of the wave peak is flattened (3143). This corresponds to the positive descending segment (3144) of the sine curve π / 2~π trajectory. This corresponds to the negative descending segment (3145) of the trajectory of the sine curve π~3π / 2. The valley segment (3146) of the wave trough value is flattened. This corresponds to the negative ascending segment (3147) of the sine curve trajectory from 3π / 2 to 2π. The first drop followed by a rise, with the lowest point being the misaligned section (3148) located in the middle and higher than the initial point of the rising section (3142). The guide slide (314) is divided into a first slide (314a), a second slide (314b) and a third slide (314c) along the circumference of the outer wheel (312), and the 0° positions of the first slide (314a), the second slide (314b) and the third slide (314c) are aligned in the circumference; The first slide (314a) consists of the following segments connected sequentially along the circumference from 0 to 360°: positive ascending segment (3142), peak segment (3143), positive descending segment (3144), positive ascending segment (3142), peak segment (3143), positive descending segment (3144), negative descending segment (3145), valley segment (3146), negative ascending segment (3147), positive ascending segment (3142), peak segment (3143), positive descending segment (3144), positive ascending segment (3142), peak segment (3143), positive descending segment (3144), negative descending segment (3145), valley segment (3146), and negative ascending segment (3147). The second slide (314b) consists of a series of sequentially connected segments along the circumference from 0 to 360°: a negative descending segment (3145), a valley segment (3146), a negative rising segment (3147), a positive rising segment (3142), a peak segment (3143), a positive descending segment (3144), a positive rising segment (3142), a peak segment (3143), a positive descending segment (3144), a negative descending segment (3145), a valley segment (3146), a negative rising segment (3147), a positive rising segment (3142), a peak segment (3143), a positive descending segment (3144), a positive rising segment (3142), a peak segment (3143), and a positive descending segment (3144). The third slide (314c) consists of a series of sequentially connected segments along the circumference from 0 to 360°: a positive ascending segment (3142), a peak segment (3143), a positive descending segment (3144), a negative descending segment (3145), a valley segment (3146), a negative ascending segment (3147), a positive ascending segment (3142), a peak segment (3143), a positive descending segment (3144), a positive ascending segment (3142), a peak segment (3143), a positive descending segment (3144), a negative descending segment (3145), a valley segment (3146), a negative ascending segment (3147), a positive ascending segment (3142), a peak segment (3143), and a positive descending segment (3144). In the first slide (314a), the second slide (314b), and the third slide (314c), the connection between the rising section (3142) and the falling section (3144) is replaced with a misaligned section (3148) for transition. After the replacement, the circumferential angles occupied by the rising section (3142), the misaligned section (3148), and the falling section (3144) are equal to the sum of the circumferential angles occupied by the replaced rising section (3142) and the falling section (3144) alone.

2. The circular loom cam according to claim 1, characterized in that, The misaligned wire segment (3148) is a symmetrical smooth curve.

3. A circular loom cam according to claim 2, characterized in that, The misaligned wire segment (3148) is a parabolic trajectory.

4. A circular loom cam according to claim 1, characterized in that, The first slide (314a) is as follows: The range from 0 to 24° is the positive ascending segment (3142). The peak value is between 24° and 36° (3143). The range of 36° to 60° is the positive descending segment (3144). The range of 60° to 84° is the positive ascending segment (3142). The peak value range is 84-96° (3143). The range of 96° to 120° is the positive descending segment (3144). The range of 120° to 144° is the negative descent segment (3145°). The range of 144° to 156° is the valley value (3146). The range from 156° to 180° is the negative ascending segment (3147). The range of 180° to 204° is the positive ascending segment (3142). The peak value is between 204° and 216° (3143). The range of 216° to 240° is the positive descending segment (3144). The range of 240° to 264° is the positive ascending segment (3142). The peak value is between 264° and 276° (3143). The range of 276° to 300° is the positive descending segment (3144). The range of 300° to 324° is the negative descending segment (3145°). The range of 324° to 336° is the valley value (3146). The range from 336° to 360° is the negative ascending segment (3147). Among them, 56~64° and 236~244° are transitioned by the misaligned wire segment (3148); The second slide (314b) is as follows: The range from 0 to 24° is the negative decreasing range (3145). The range of 24° to 36° is the valley value (3146). The range from 36° to 60° is the negative rise segment (3147). The range of 60° to 84° is the positive ascending segment (3142). The peak value range is 84-96° (3143). The range of 96° to 120° is the positive descending segment (3144). The range of 120° to 144° is the positive ascending segment (3142). The peak value range is 144-156° (3143). The range of 156° to 180° is the positive descending segment (3144). The range of 180° to 204° is the negative descending segment (3145°). The range of 204° to 216° is the valley value (3146). The range from 216° to 240° is the negative ascending segment (3147). The range of 240° to 264° is the positive ascending segment (3142). The peak value is between 264° and 276° (3143). The range of 276° to 300° is the positive descending segment (3144). The range of 300° to 324° is the positive ascending segment (3142). The peak value is between 324° and 336° (3143). The range from 336° to 360° is the positive descending segment (3144). Among them, 116~124° and 296-304° are transitioned by the misaligned wire segment (3148); The third slide (314c) is as follows: The range from 0 to 24° is the positive ascending segment (3142). The peak value is between 24° and 36° (3143). The 36-60° range is the positive descending segment (3144). The 60-84° range is a negative descent segment (3145°). The range of 84° to 96° is the valley value (3146). The range from 96° to 120° is the negative rise segment (3147). The range of 120° to 144° is the positive ascending segment (3142). The peak value range is 144-156° (3143). The range of 156° to 180° is the positive descending segment (3144). The range of 180° to 204° is the positive ascending segment (3142). The peak value is between 204° and 216° (3143). The 216~240° range is a positive descending segment (3144). The range of 240° to 264° is a negative descending segment (3145°). The range of 264° to 276° is the valley value (3146). The range of 276° to 300° is the negative rise segment (3147). The range of 300° to 324° is the positive ascending segment (3142). The peak value is between 324° and 336° (3143). The range from 336° to 360° is the positive descending segment (3144). 176~184° and 356~4° are transitioned by the misaligned wire segment (3148).

5. A heddle wire adjusting mechanism, characterized in that, It includes a heald frame assembly (32), a lifting assembly (33), and a cam (31) as described in any one of claims 1 to 4. The heald frame assembly (32) is divided into a first heald frame (32a), a second heald frame (32b), and a third heald frame (32c) according to its position. The number of the first heddle frame (32a), the number of the second heddle frame (32b), and the number of the third heddle frame (32c) are all equal to the number of lifting components (33) and there are multiple of them; The first heddle frame (32a) is arranged in a circular array around the axis of the cam (31). The second heald frame (32b) is arranged in a circular array around the axis of the cam (31) and is located outside the first heald frame (32a). The third heald frame (32c) is arranged in a circular array around the axis of the cam (31) and is located outside the second heald frame (32b). The lifting assembly (33) includes a vertical guide rod (331), a first drive seat (332a) fixed to the first heald frame (32a), a second drive seat (332b) fixed to the second heald frame (32b), and a third drive seat (332c) fixed to the third heald frame (32c). The first drive seat (332a), the second drive seat (332b), and the third drive seat (332c) are all vertically slidably connected to the guide rod (331). The first drive seat (332a) includes a first drive block (3321) inserted into the first slide rail (314a); The second drive seat (332b) includes a second drive block (3322) inserted into the second slide (314b); The third drive seat (332c) includes a third drive block (3323) inserted into the third slide (314c).

6. The heddle wire adjusting mechanism according to claim 5, characterized in that, The heald frame assembly (32) includes a heald plate (322) for hanging the wires and a vertical heald rod (321), with the heald plate (322) fixed to the heald rod (321); The third drive seat (332c) is located below the second drive seat (332b); The third drive seat (332c) is fixed to the heddle rod (321) of the third heddle frame (32c), and the second drive seat (332b) is fixed to the heddle rod (321) of the second heddle frame (32b); The second drive seat (332b) is also vertically slidably connected to the heald rod (321) of the third heald frame (32c).

7. The heddle wire adjusting mechanism according to claim 5, characterized in that, The heald frame assembly (32) includes a heald plate (322) for hanging the wires and a vertical heald rod (321), with the heald plate (322) fixed to the heald rod (321); The second drive seat (332b) is located below the first drive seat (332a); The second drive seat (332b) is fixed to the heddle rod (321) of the second heddle frame (32b); The first drive seat (332a) is fixed to the heddle rod (321) of the first heddle frame (32a); The first drive seat (332a) is also vertically slidably connected to the heald rod (321) of the second heald frame (32b).

8. The heddle wire adjusting mechanism according to claim 5, characterized in that, The heald frame assembly (32) includes a heald plate (322) for hanging the wires and a vertical heald rod (321), with the heald plate (322) fixed to the heald rod (321); The second drive seat (332b) is located below the first drive seat (332a), and the third drive seat (332c) is located below the second drive seat (332b); The first drive seat (332a) is also vertically slidably connected to the heald bar (321) of the second heald frame (32b), and the second drive seat (332b) is also vertically slidably connected to the heald bar (321) of the third heald frame (32c).

9. A six-shuttle twill circular loom, characterized in that: Includes the cam (31) as described in any one of claims 1 to 4 or the heddle wire adjusting mechanism (3) as described in any one of claims 5 to 8.

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