Shedding mechanism and weaving machine
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2026-02-06
- Publication Date
- 2026-08-13
Smart Images
Figure CN2026077668_13082026_PF_FP_ABST
Abstract
Description
Shedding mechanism and loom
[0001] Related applications
[0002] This application claims priority to Chinese patent application No. 202510134887.1, filed on February 7, 2025, the entire contents of which are incorporated herein by reference. Technical Field
[0003] This application relates to the field of textile weaving equipment technology, and in particular to a shedding mechanism and a loom. Background Technology
[0004] A loom typically includes a warp feeding mechanism, a shedding mechanism, a weft insertion mechanism, a beat-up mechanism, and a take-up mechanism. The shedding mechanism drives the heald frame to move up and down, so that the warp yarn passing through the heald frame can move up and down with the heald frame and form different weft holes. This ensures that the weft yarn ejected by the weft insertion mechanism can pass smoothly through the weft hole, and the beat-up mechanism beats the weft yarn that has passed through the weft hole onto the surface of the warp yarn to form the fabric.
[0005] In related technologies, the main power source of the opening mechanism is the main shaft, or multiple independent rotary servo motors are used to drive multiple heald frames. Whether the main shaft or rotary servo motor is used as the power source, a complex mechanical transmission mechanism such as belt transmission, reversing gear set, conjugate cam set, and connecting rod is required to convert the rotary motion into linear motion. There are many conversion links and the conversion structure is complex. The adjustment of the heald frame's up and down travel and state is very troublesome and requires mechanical adjustment. It is not possible to directly and freely adjust the travel and state of the heald frame. Summary of the Invention
[0006] The main purpose of this application is to provide a shedding mechanism and a loom, which aims to provide a shedding mechanism and a loom with a simple and reliable structure and stable performance that allows for direct and free adjustment of the heald frame's travel and state.
[0007] This application provides an opening mechanism, comprising: a heald frame array, the heald frame array including multiple heald frame supports arranged in an array along a first direction, the supports being used to connect to the frame of a loom; and a linear drive module, the linear drive module including at least two sets of linear drive units, each linear drive unit including multiple direct drive units, each direct drive unit including a stator module and a mover module, the stator module being connected to the supports, the mover module being slidably engaged with the stator module, each heald frame being connected to a mover module of a direct drive unit, so that each mover module drives the corresponding heald frame to reciprocate up and down, wherein each direct drive unit in each set of linear drive units extends and is arranged along a second direction and staggered sequentially along the first direction, the second direction being perpendicular to the first direction.
[0008] In one specific embodiment, the thickness of the direct drive unit in the first direction is greater than the thickness of the direct drive unit in the second direction.
[0009] In one specific embodiment, the misalignment distance between two adjacent linear drive units in each group of linear drive units is equal in the first direction.
[0010] In one specific embodiment, the misalignment distance is equal to the center distance between two adjacent heald frames in the first direction.
[0011] In one specific embodiment, the spacing between two adjacent linear drive units in each group of linear drive units is equal in the second direction.
[0012] In one specific embodiment, the spacing between two adjacent direct drive units in the second direction is 0-5 mm.
[0013] In one specific embodiment, each group of linear drive units is equidistant from the first center line of the heald frame.
[0014] In one specific embodiment, the distance between the lifting points of two adjacent moving sub-modules and the heald frame in the second direction is the center distance between the two direct drive units in the second direction.
[0015] In one specific embodiment, the centerline of each of the direct drive units is located in the first direction or the centerline of each of the direct drive units intersects the first direction.
[0016] In one specific embodiment, the angle formed by the intersection of the centerline of each direct drive unit and the first direction is α, where 0 ≤ α ≤ 60 degrees.
[0017] In one specific embodiment, the heald frame includes a first center line in a first direction and a second center line in a second direction. The distance between the end of each linear drive unit located on one side of the second center line and the second center line decreases sequentially from the distance away from the first center line to the distance close to the first center line. The distance between the end of each drive unit located on the other side of the second center line and the second center line of the heald frame increases sequentially from the distance away from the first center line to the distance close to the first center line.
[0018] In one specific embodiment, the two sets of linear drive units are misaligned in the second direction.
[0019] In one specific embodiment, each of the direct drive units is an independent and identical minimum drive unit.
[0020] In one specific embodiment, the linear drive module is located above the helical frame.
[0021] In one specific embodiment, the opening mechanism includes two sets of linear drive modules, and the distance between the two sets of linear drive modules and the first center line is equal.
[0022] In one specific embodiment, the two sets of linear drive modules are located at both ends of the frame.
[0023] In one specific embodiment, the two ends of the trunk frame are respectively connected to a moving submodule of a linear drive module.
[0024] In one specific embodiment, the opening mechanism further includes a plurality of heald frame lifting members, each of the heald frames being connected to a moving submodule via one of the heald frame lifting members.
[0025] In one specific embodiment, the moving sub-module extends from below the direct drive unit and connects to the corresponding heald frame lifting member.
[0026] In one specific embodiment, the moving part module includes a moving part body and a moving part connecting rod, one end of the moving part connecting rod is connected to the moving part body, and the other end of the moving part body is connected to the heald frame lifting member.
[0027] In one specific embodiment, the bracket is provided with a through hole, and the heald frame lifting member passes through the through hole.
[0028] In one specific embodiment, the two ends of the bracket are respectively connected to the frame, and the two sets of linear drive modules are located at the two ends of the bracket; or, the bracket includes two bracket units, the two bracket units are respectively located at the two ends of the frame, and each set of linear drive modules is located on each bracket unit.
[0029] This application also proposes a loom, which includes a frame and the shearing mechanism described in the above embodiments, wherein the support of the shearing mechanism is connected to the frame.
[0030] In the opening mechanism proposed in this application embodiment, each heald frame is directly connected to a moving sub-module of the linear drive module, so that the linear drive module is used as the main power source for the heald frame to move up and down. There is no complex mechanical transmission mechanism such as intermediate belt transmission, reversing gear set, conjugate cam set, and connecting rod. The running stroke and state of multiple heald frames can be freely adjusted by controlling the running stroke and state of multiple direct drive units.
[0031] Furthermore, by eliminating the intermediate mechanical transmission mechanism, the transmission conversion process from rotary motion to linear motion is avoided, resulting in more efficient transmission, more direct response, lower vibration and noise, and greater suitability for high-speed operation.
[0032] Meanwhile, because each linear drive unit in each group extends along the second direction and is staggered sequentially along the first direction, the linear drive unit has sufficient space to accommodate additional systems such as lubrication and cooling systems. This results in a simpler, more reliable structure, more stable performance, and a longer lifespan for the linear drive unit. Consequently, the maintenance frequency of the sheathing mechanism driven by the linear drive unit is reduced, without affecting the effective operation of the loom. Furthermore, the compact arrangement of at least two groups of linear drive units effectively improves the reliability of the heald frames, better addressing the feasibility of a one-to-one connection between the linear drive unit's moving submodule and the heald frames due to the limited space constraints caused by the small load spacing of the heald frames, as well as issues of connection reliability and flexibility in expansion. Attached Figure Description
[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0034] Figure 1 is a structural schematic diagram of the first embodiment of the opening mechanism of this application;
[0035] Figure 2 is another structural schematic diagram of the first embodiment of the opening mechanism of this application;
[0036] Figure 3 is a top view of the first embodiment of the opening mechanism of this application;
[0037] Figure 4 is a front view of the first embodiment of the opening mechanism of this application;
[0038] Figure 5 is another top view of the first embodiment of the opening mechanism of this application;
[0039] Figure 6 is another top view of the first embodiment of the opening mechanism of this application;
[0040] Figure 7 is a schematic diagram of the positional relationship between the weft opening and the heald frame in the opening mechanism of this application;
[0041] Figure 8 is a schematic diagram of the lifting points of each heald frame in the heald frame array of the opening mechanism of this application;
[0042] Figure 9 is a top view of the second embodiment of the opening mechanism in this application;
[0043] Figure 10 is a top view of the third embodiment of the opening mechanism in this application;
[0044] Figure 11 is a top view of the fourth embodiment of the opening mechanism in this application;
[0045] Figure 12 is a top view of the fifth embodiment of the opening mechanism in this application;
[0046] Figure 13 is another top view of the fifth embodiment of the opening mechanism in this application.
[0047] Explanation of icon numbers:
[0048]
[0049] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Embodiments of the present invention
[0050] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0051] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0052] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.
[0053] Existing heald frame arrays on looms have small spacing between each heald frame and are arranged relatively compactly, while the heald frames in the other direction have a large span. In order to ensure that the linear drive unit mover is directly connected to the corresponding heald frame and that the connection is compact and reliable, this application proposes a shedding mechanism 100, which aims to provide a simple, reliable, and stable shedding mechanism 100 that allows for direct and free adjustment of the heald frame's travel stroke and state.
[0054] The specific structure of the opening mechanism 100 of this application will be described below:
[0055] Referring to Figures 1-4, this application proposes an sheathing mechanism 100, which includes: a heald frame array 10, comprising multiple heald frames arranged in an array along a first direction; a support 20 for connecting the frame 30 of a loom; and a linear drive module 40, comprising at least two sets of linear drive units 401 and 402. Linear drive unit 401 includes multiple direct drive units 4011, and linear drive unit 402 includes multiple direct drive units 4021. Each direct drive unit 4011 includes a stator module 40111 and a mover module 40112. The direct drive unit 4021 includes a stator submodule 40211 and a moving submodule 40212. Multiple stator modules 40111 and 40211 are connected to the bracket 20. Multiple moving submodules 40112 and 40212 slide in cooperation with the stator modules 40111 and 40211. Each heald frame is connected to the moving submodule of the direct drive unit, so that each moving submodule 40112 and 40212 drives the corresponding heald frame to reciprocate up and down. Each direct drive unit 4011 and 4021 in each group of linear drive units 401 and 402 extends along a second direction and is staggered sequentially along a first direction. In this embodiment, the extension direction of the heald frame array 10 is taken as the first direction, the direction perpendicular to the first direction is taken as the second direction, and the reciprocating motion direction of the heald frame array 10 is taken as the third direction. Specifically, referring to Figure 7, the first direction is also the extension direction of the weave opening 50, and the size of the weave opening 50 gradually increases along the first direction.
[0056] The opening mechanism 100 in this embodiment allows the linear drive module 40 to be arranged in a "staggered array of linear drive units in each group, multi-point lifting" manner. That is, the multiple direct drive units 4011 in linear drive unit 401 and the multiple direct drive units 4021 in linear drive unit 402 are all arranged extending along the second direction and staggered sequentially along the first direction, so that the lifting points formed by the direct drive units 4011, 4021 and the heald frame are distributed at multiple points in the second direction. Specifically, the number of lifting points corresponds to the total number of multiple direct drive units 4011 and 4021 in the two groups of linear drive units. In this embodiment, taking a heald frame array 10 with 16 evenly distributed heald frames as an example, each group of linear drive units 401, 402 has 8 direct drive units, and the total number of direct drive units in the two groups of linear drive units is 16, with 16 connection points to the heald frames.
[0057] Referring to Figure 12, in a specific embodiment, the thickness M of each direct drive unit in the first direction is greater than the thickness N in the second direction. That is, the first direction is the length direction of the direct drive unit, the second direction is the width direction of the direct drive unit, and the third direction is the height direction of the direct drive unit. This configuration reduces the area occupied by the linear drive module in the second direction, allowing the lifting point of the heald frame to be as close as possible to both ends of the heald frame, ensuring the strength of the heald frame, and without affecting the structural dimensions of the linear drive module, thus ensuring the structural strength of the linear drive module.
[0058] As shown in Figure 8, the lifting points a, b, c, d, e, f, g, h of each heald frame and each direct drive unit are arranged sequentially in the second direction. The distance between the lifting points of two adjacent heald frames along the second direction is equal to the center distance between two direct drive units in the second direction.
[0059] In the opening mechanism proposed in this application embodiment, each heald frame is directly connected to a moving sub-module of the linear drive module, so that the linear drive module is used as the main power source for the heald frame to move up and down. There is no complex mechanical transmission mechanism such as intermediate belt transmission, reversing gear set, conjugate cam set, and connecting rod. The running stroke and state of multiple heald frames can be freely adjusted by controlling the running stroke and state of multiple direct drive units.
[0060] Furthermore, by eliminating the intermediate mechanical transmission mechanism, the transmission conversion process from rotary motion to linear motion is avoided, resulting in more efficient transmission, more direct response, lower vibration and noise, and greater suitability for high-speed operation.
[0061] Meanwhile, because each linear drive unit in each group extends along the second direction and is staggered sequentially along the first direction, the linear drive unit has sufficient space to accommodate additional systems such as lubrication and cooling systems. This results in a simpler, more reliable structure, more stable performance, and a longer lifespan for the linear drive unit. Consequently, the maintenance frequency of the sheathing mechanism driven by the linear drive unit is reduced, without affecting the effective operation of the loom. Furthermore, the compact arrangement of the two groups of linear drive units effectively improves the reliability of the heald frames. This better addresses the feasibility of a one-to-one connection between the linear drive unit's moving submodule and the heald frames due to the limited space constraints caused by the small load spacing of the heald frames, as well as the issues of connection reliability and flexibility in expansion.
[0062] Referring to Figures 3 and 5, in the first embodiment, the centerlines AA of the multiple direct drive units 4011 and multiple direct drive units 4021 are all located in the first direction. Specifically, two adjacent direct drive units 4011 are staggered sequentially in the first direction, with equal stagger distances D. Two adjacent direct drive units 4021 are also staggered sequentially in the first direction, with equal stagger distances D'. The stagger distances D and D' are equal to the center distance between two adjacent heald frames in the first direction. Two adjacent direct drive units 4011 extend and are arranged in the second direction, with equal spacing between each direct drive unit 4011 in the second direction. Two adjacent direct drive units 4021 also extend and are arranged in the second direction, with equal spacing between each direct drive unit 4021 in the second direction. In other embodiments, the offset distance D of the direct drive unit 4011 in the first direction is equal to the offset distance D' of the direct drive unit 4021 in the first direction, and the interval distance of the extended arrangement in the second direction is also equal. That is to say, the offset arrangement of each direct drive unit in each group of linear drive units is uniform in the first direction, and the extended arrangement in the second direction is also uniform, which makes it easier to arrange the array of direct drive units.
[0063] In one specific embodiment, the spacing between two adjacent direct drive units in the second direction is 0-5mm. The direct drive units are arranged compactly in the second direction, occupying minimal space, without affecting installation and maintenance. Referring to Figure 6, the brown frame includes a first center line BB in the first direction and a second center line JJ in the second direction. The distance C between the end of each direct drive unit 4011 in the linear drive unit 401 located on one side of the second center line JJ and the second center line JJ decreases sequentially from the furthest point from the first center line BB to the closest point. For example, the distance C between the end of direct drive unit 4011 and the second center line JJ is greater than the distance C1 between the end of direct drive unit 4011a and the second center line JJ, i.e., C > C1. Conversely, the distance C' between the end of each direct drive unit 4021 in the linear drive unit 402 located on the other side of the second center line JJ and the second center line JJ of the brown frame increases sequentially from the furthest point from the first center line BB to the closest point, i.e., C' < C1'. Specifically, as shown in Figure 7, each heald frame in the heald frame array 10 is at a different distance from the weaving opening 50. The distance between each heald frame and the weaving opening 50 gradually increases along the first direction. As those skilled in the art know, the heald frame farther from the weaving opening 50 moves a greater distance in the third direction, bears a greater driving force, and its heald frame structure needs to be more stable. Therefore, the heald frame 16#, which is farthest from the weaving opening 50, has the largest distance between the lifting point of the corresponding direct drive unit and the first center line BB.
[0064] Referring to Figures 6 and 8, taking the first group of linear drive units 401 as an example, the direct drive unit 4011 drives heald frame 16#, with its lifting point being a; the direct drive unit 4011a drives heald frame 15#, with its lifting point being b; and so on. The lifting point c between direct drive unit 4011b and heald frame 14#, the lifting point d between direct drive unit 4011c and heald frame 13#, the lifting point e between direct drive unit 4011d and heald frame 12, the lifting point f between direct drive unit 4011e and heald frame 11, the lifting point g between direct drive unit 4011f and heald frame 10, and the lifting point h between direct drive unit 4011g and heald frame 9#, the distances from the lifting points a, b, c, d, e, f, g, and h to the first center line BB decrease sequentially. Similarly, the distances from each lifting point of heald frames 8# to 1# in each direct drive unit 4021 and the second group of linear drive units 402 to the first center line BB also decrease sequentially. Therefore, the direct drive unit corresponding to the heald frame farther from the weave opening is also farther from the first center line BB and the second center line JJ.
[0065] As shown in Figure 3, in this embodiment, the distance G between the linear drive unit 401 and the first center line BB of the heald frame is equal to the distance G' between the linear drive unit 402 and the first center line BB of the heald frame. This arrangement makes the arrangement of the linear drive units compact and occupies little space.
[0066] Referring to Figure 9, this application provides a modified second embodiment. Unlike the previous embodiment, in the second direction, the two sets of linear drive units 401 and 402 are misaligned. That is, the distance K between linear drive unit 401 and the first center line BB is not equal to the distance L between linear drive unit 402 and the first center line BB. Similarly, in other embodiments, if another drive module 40' exists, the distance K' between one set of direct drive units 401' and the first center line BB in the second drive module 40' is also not equal to the distance L' between the other set of direct drive units 402' and the first center line BB. In a specific embodiment, since the same heald frame requires two linear drive units at both ends to drive it, to ensure uniform force distribution at both ends of the heald frame, the linear drive module 40 and the linear drive module 40' are symmetrical about the first center line BB, i.e., K equals K' and L equals L'.
[0067] Referring to Figure 10, this application provides a third embodiment, which differs from the first embodiment in that the two sets of linear drive units 401, 402 are inclined in the first direction. The center line AA of each linear drive unit 4011, 4021 in the two sets of linear drive units 401, 402 intersects the first direction. The angle formed by the intersection of the center line of each linear drive unit 4011, 4021 and the first direction is α, where 0≤α≤60 degrees. For example, the angle α formed by the center line AA of each linear drive unit 4011, 4021 and the first direction is 30 degrees. The angle α is not specifically limited, as long as it can effectively lift the heald frame to perform up-and-down reciprocating motion.
[0068] Referring to Figure 11, this application provides a fourth embodiment, which differs from the third embodiment in that the tilting direction of the two sets of linear drive units 401, 402 in the first direction is opposite to the tilting direction in the third embodiment about the first direction. That is, the angle formed by the centerline of the linear drive unit 4011 and the opposite direction of the first direction is α.
[0069] Understandably, in other embodiments, the opening mechanism described in the third and fourth embodiments above may also have its first set of linear drive units 401 and the second set of linear drive units 402 misaligned in the second direction. (Not shown in the figure)
[0070] Referring to Figures 12-13, in the fifth embodiment, the heald frame array includes a first center line BB in a first direction and a second center line JJ in a second direction. Unlike the first embodiment, in the linear drive unit 401 located on one side of the second center line JJ, the distance H between the end of each linear drive unit 4011 from the furthest point from the first center line BB and the second center line JJ increases sequentially (e.g., H is less than H1). Conversely, in the linear drive unit 402 located on the other side of the second center line, the distance H' between the end of each drive unit 4021 from the furthest point from the first center line BB and the second center line JJ of the heald frame decreases sequentially (e.g., H' is greater than H1'). The linear drive module configuration in this embodiment effectively drives the heald frame movement.
[0071] Similarly, in a modified embodiment of the fifth embodiment, the two sets of linear drive units are misaligned in the second direction. (The misalignment method is the same as that shown in the second embodiment in FIG9.)
[0072] Similarly, in other adaptable embodiments, the centerline of each direct drive unit in the fifth embodiment can also intersect with the first direction. That is, the two sets of linear drive units can also be inclined in the first direction, and the inclination method is the same as that in the third and fourth embodiments.
[0073] Alternatively, in one specific embodiment, as shown in Figures 1-13, the direct drive units in each group of linear drive units are arranged close together, with a spacing of 0-5mm between adjacent direct drive units in the second direction. This arrangement results in a small space occupied by the linear drive module and a compact structure. Of course, in other embodiments, adjacent direct drive units in each group of linear drive units can also be arranged with a distance between them, or the direct drive units in the first group of linear drive units can be arranged close together, while the direct drive units in the second group of linear drive units can be arranged with intervals. Various combinations of embodiments that can be extended in this application are not listed here, as long as each direct drive unit in each group of linear drive units extends along the second direction and is staggered sequentially along the first direction, and can effectively drive the heald frame to reciprocate up and down.
[0074] Specifically, in the embodiments of this application, the direct drive units are all independent and identical minimum drive units. Independent direct drive units can be understood as having no coupling between any two units. Identical direct drive units can be understood as having essentially the same configuration in each direction, with only minor differences such as misalignment, spacing, and tilt. For example, the configuration of the direct drive units in the third direction is completely identical, such as the extension length of the moving submodules in the third direction being completely identical. During arrangement, it is sufficient to arrange each direct drive unit along the second direction, ensuring a staggered distance in the first direction. The minimum drive unit can be understood as a direct drive unit driving only one heald frame. In other words, in the embodiments of this application, the direct drive unit is a modular drive unit with strong productization and scalability. In other solutions, if the number of heald frames increases or decreases, the corresponding number of direct drive units can be increased or decreased accordingly to achieve the arrangement of the opening mechanism.
[0075] In a specific embodiment, as shown in Figures 1, 2, and 4, the linear drive module is located above the heald frame, which is the opposite direction of the third direction. By setting the linear drive module 40 above the heald frame array 10, the space above the heald frame can be fully utilized, making the spatial layout of the opening mechanism 100 more compact.
[0076] In practical applications, the bracket 20 can be located above or to the side of the heald frame array 10. Of course, in some embodiments, in order to make the spatial layout of the opening mechanism 100 more compact, the bracket 20 can be positioned above the heald frame array 10 so that the linear drive module 30 is supported on the bracket 20.
[0077] Referring to Figures 1-13, the opening mechanism includes two sets of linear drive modules 40 and 40', located above the heald frame array 10. The distances of the two sets of linear drive modules 40 and 40' from the first center line BB are equal. Specifically, as shown in Figure 3, the distance G between the first linear drive unit 401 in the first set of linear drive modules 40 and the first center line BB is equal to the distance I between the first linear drive unit 401' and the first center line BB in the second set of linear drive modules 40'. The distance G' between the first linear drive unit 402 in the first set of linear drive modules 40 and the first center line BB is equal to the distance I' between the second linear drive unit 402' and the first center line BB in the second set of linear drive modules 40'. As long as the two linear drive units driving the same heald frame are symmetrically distributed about the first center line BB, the push-pull points formed on the heald frame are also symmetrically distributed, which is beneficial to the force distribution on the heald frame.
[0078] Referring to Figure 9, in other embodiments, the two sets of linear drive units 401 and 402 in the first drive module 40 are misaligned in the second direction, i.e., K and L are not equal. Similarly, the two sets of linear drive units 401' and 402' in the second drive module 40' are also misaligned in the second direction, i.e., K' and L' are not equal. In a specific embodiment, since the same heald frame requires two linear drive units at both ends to drive it, to ensure uniform force distribution at both ends of the heald frame, the linear drive module 40 and the linear drive module 40' are symmetrical about the first centerline BB, i.e., K equals K' and L equals L'.
[0079] In one specific embodiment, two sets of linear drive modules 40, 40' are located at both ends of the heald frame. Each heald frame is connected to a moving submodule of a linear drive module 40, 40' at each end. That is, each heald frame is driven by two moving submodules located at both ends of the heald frame, making the transmission more efficient.
[0080] Referring to Figure 4, in a specific embodiment, the opening mechanism 100 further includes multiple heald frame lifting members 60, each heald frame being connected to a moving submodule 40112, 40212 via a heald frame lifting member 60. This configuration, by using the heald frame lifting members 60 to connect the heald frame and the moving submodules 40112, 40212, facilitates the connection between the heald frame and the moving submodules 40112, 40212. In practical applications, the heald frame lifting member 60 can be a lifting structure in the shape of a rod, sheet, plate, etc., as long as it can achieve the connection between the heald frame and the moving submodule; no specific limitation is made here.
[0081] In this design, the moving parts modules 40112 and 40212 extend from below the direct drive unit 401 and connect to the corresponding heald frame lifting member 60 (extending downwards in the height direction and outwards in a third direction). That is, the moving parts modules connect directly to the heald frame lifting member 60 in the height direction, without requiring a complex adapter structure. Specifically, the moving parts module includes a moving part body and a moving part connecting rod. One end of the moving part connecting rod connects to the moving part body, and the other end connects to the heald frame lifting member. In most cases, the moving part body is housed within the stator body, and the moving part connecting rod extends from within the moving part body to connect to the heald frame lifting member. Of course, in other embodiments, the moving part, the moving part connecting rod, and the heald frame lifting member can be integrated into a single structure.
[0082] In one specific embodiment, the moving submodule and the heald frame lifting member can be connected via threaded holes. In other embodiments, a recess is provided on one side of the moving submodule, and the end of the heald frame lifting member away from the heald frame is located in the recess. This arrangement, by placing the end of the heald frame lifting member away from the heald frame in the recess of the moving submodule, allows the heald frame lifting member to not occupy additional space, enabling adjacent moving submodules to be arranged more compactly. The connection method between the moving submodule and the heald frame lifting member is not limited, as long as it better solves the feasibility problem of connecting the moving submodule of the direct drive unit to the heald frame one-to-one within the limited space constraints due to the small load spacing of the heald frames.
[0083] In one specific embodiment, the bracket is provided with a through hole, and the heddle frame lifting member 60 passes through the through hole.
[0084] With this configuration, during assembly, the heald frame lifting component 60 can be passed through the through hole of the bracket first, then one end of the heald frame lifting component 60 can be connected to the corresponding heald frame, and the other end of the heald frame lifting component 60 can be connected to the corresponding moving sub-module, making it easier to connect the heald frame lifting component 60 to the heald frame and the moving sub-module.
[0085] In a specific embodiment, as shown in Figure 1, the opening mechanism 100 includes a bracket 20, with the two ends of the bracket 20 respectively connected to the frame 30. Linear drive modules 40 and 40' are located at both ends of the bracket 20. That is, the bracket 20 is an integral structure that spans both sides of the frame array 10. The bracket and the linear drive modules 40 and 40' are fastened together by screws and bolts.
[0086] In another specific embodiment, the bracket 20 includes two bracket units located at opposite ends of the frame 30, with each linear drive module 40, 40' situated on each bracket unit. The bracket is used to securely connect the linear drive unit to the loom frame, providing support, fixation, and positioning functions.
[0087] This application also provides a loom, which includes a frame 30 and a shedding mechanism connected to the frame 30. The shedding mechanism is the same as the shedding mechanism 100 described in the above embodiments. Since this loom adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0088] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.
Claims
1. An opening mechanism, characterized in that, include: A heald frame array, the heald frame array comprising multiple heald frames arranged in an array along a first direction; A support frame for connecting the frame of a loom; A linear drive module includes at least two sets of linear drive units, each linear drive unit including multiple direct drive units, each direct drive unit including a stator module and a mover module. The stator module is connected to the bracket, and the mover module is slidably engaged with the stator module. Each heald frame is connected to a mover module of a direct drive unit, so that each mover module drives the corresponding heald frame to reciprocate up and down. Each direct drive unit in each set of linear drive units extends along a second direction and is staggered sequentially along a first direction. The second direction is perpendicular to the first direction.
2. The opening mechanism as described in claim 1, characterized in that, The thickness of the direct drive unit in the first direction is greater than the thickness of the direct drive unit in the second direction.
3. The opening mechanism as described in claim 1, characterized in that, The misalignment distance between two adjacent linear drive units in each group is equal in the first direction.
4. The opening mechanism as described in claim 3, characterized in that, The misalignment distance is equal to the center distance between two adjacent frame frames in the first direction.
5. The opening mechanism as described in claim 1, characterized in that, In each group of linear drive units, the distance between two adjacent linear drive units in the second direction is equal.
6. The opening mechanism as described in claim 1, characterized in that, The distance between each group of linear drive units and the first center line of the heald frame is equal.
7. The opening mechanism as described in claim 1, characterized in that, The distance between the lifting points of two adjacent moving sub-modules and the heald frame in the second direction is equal to the center distance between the two direct drive units in the second direction.
8. The opening mechanism as described in claim 1, characterized in that, The centerline of each of the direct drive units is located in the first direction or the centerline of each of the direct drive units intersects the first direction.
9. The opening mechanism as described in claim 8, characterized in that, The angle formed by the intersection of the centerline of each direct drive unit and the first direction is α, where 0 ≤ α ≤ 60 degrees.
10. The opening mechanism as described in claim 1, characterized in that, The heald frame includes a first center line in a first direction and a second center line in a second direction. The distance between the end of each linear drive unit located on one side of the second center line and the second center line decreases sequentially from the distance away from the first center line to the distance close to the first center line. The distance between the end of each drive unit located on the other side of the second center line and the second center line of the heald frame increases sequentially from the distance away from the first center line to the distance close to the first center line.
11. The opening mechanism as described in claim 1, characterized in that, In the second direction, the two sets of linear drive units are misaligned.
12. The opening mechanism as described in claim 5, characterized in that, The spacing between two adjacent direct drive units in the second direction is 0-5 mm.
13. The opening mechanism as described in claim 1, characterized in that, Each of the aforementioned direct drive units is an independent and identical minimum drive unit.
14. The opening mechanism as described in claim 1, characterized in that, The linear drive module is located above the helical frame.
15. The opening mechanism as claimed in claim 1, characterized in that, The opening mechanism includes two sets of linear drive modules, and the distance between the two sets of linear drive modules and the first center line is equal.
16. The opening mechanism as described in claim 15, characterized in that, The two sets of linear drive modules are located at both ends of the frame.
17. The opening mechanism as described in claim 16, characterized in that, The two ends of the integrated frame are respectively connected to a moving sub-module of a linear drive module.
18. The opening mechanism as claimed in claim 1, characterized in that, The opening mechanism also includes multiple heald frame lifting components, and each heald frame is connected to a moving sub-module through one of the heald frame lifting components.
19. The opening mechanism as described in claim 18, characterized in that, The moving sub-module extends from below the direct drive unit and connects to the corresponding heald frame lifting component.
20. The opening mechanism as described in claim 18, characterized in that, The moving part module includes a moving part body and a moving part connecting rod. One end of the moving part connecting rod is connected to the moving part body, and the other end of the moving part body is connected to the heald frame lifting member.
21. The opening mechanism as described in claim 18, characterized in that, The bracket is provided with a through hole, and the heald frame lifting member passes through the through hole.
22. The opening mechanism as described in claim 15, characterized in that, The bracket is connected to the frame at both ends, and the two sets of linear drive modules are located at both ends of the bracket; Alternatively, the bracket may include two bracket units, which are located at opposite ends of the frame, with each set of linear drive modules located on each bracket unit.
23. A loom, characterized in that, It includes a frame and an opening mechanism as described in any one of claims 1 to 22, wherein a support for the opening mechanism is connected to the frame.