Opening mechanism and weaving machine

Abstract

The invention discloses an opening mechanism and a weaving machine, the opening mechanism comprises a heald frame array, the heald frame array comprises a plurality of heald frames distributed along a first direction array; the support is used for being connected with a rack of the weaving machine; the linear driving module comprises at least two sets of linear driving units, each linear driving unit comprises a plurality of direct driving units, each direct driving unit comprises a stator module and a rotor module, the stator modules are connected to the support, and the rotor modules are in sliding fit with the stator modules. Each heald frame is connected to the rotor module of the corresponding direct drive unit, so that each rotor module drives the corresponding heald frame to reciprocate up and down, the direct drive units in each group of linear drive units extend in the second direction and are sequentially arranged in a staggered manner in the first direction, and the direct drive units in each group of linear drive units are arranged in a staggered manner in the second direction. The second direction is perpendicular to the first direction. According to the technical scheme, the shedding mechanism can directly and freely adjust the running stroke and state of the heald frame, and is simple and reliable in structure and stable in performance.

Description

Technical Field

[0001] The invention relates to the technical field of textile weaving equipment, in particular to an opening mechanism and a loom. Background Art

[0002] A loom usually includes a warp feeding mechanism, an opening mechanism, a weft insertion mechanism, a beating-up mechanism and a take-up mechanism, wherein the opening mechanism is used to drive the heald frame to reciprocate up and down, so that the warp yarns passing through the heald frame can move up and down with the heald frame and form different cloth fells, to ensure that the weft yarns sprayed by the weft insertion mechanism can pass through the cloth fell smoothly, and the beating-up mechanism beats the weft yarns passing through the cloth fell to the surface of the warp yarns to form a fabric.

[0003] In the related art, the main power source of the opening mechanism is the main shaft, or multiple independent rotary servo motors are used to drive the movement of multiple heald frames. Whether the main shaft or the rotary servo motor is used as the power source, it is necessary to use a complex mechanical transmission mechanism such as belt transmission-reversing gear set-conjugate cam set-connecting rod to convert the rotary motion into linear motion. There are many conversion links and the conversion structure is complex. The adjustment of the up and down running stroke and state of the heald frame is very troublesome and requires mechanical adjustment. The running stroke and state of the heald frame cannot be directly and freely adjusted. Summary of the invention

[0004] The main purpose of the present invention is to provide an opening mechanism and a loom, aiming to provide an opening mechanism and a loom which can directly and freely adjust the running stroke and state of the heald frame and have a simple and reliable structure and stable performance.

[0005] An embodiment of the present invention proposes an opening mechanism, which includes: a heald frame array, the heald frame array includes a plurality of heald frame brackets distributed in an array along a first direction, and the brackets are used to connect to a frame of a loom; a linear drive module, the linear drive module includes at least two groups of linear drive units, the linear drive unit includes a plurality of direct drive units, the direct drive unit includes a stator module and a mover module, the stator module is connected to the bracket, the mover module slides with the stator module, each of the heald frames is connected to a mover module of the direct drive unit, so that each mover module drives the corresponding heald frame to reciprocate up and down, wherein each of the direct drive units in each group of the linear drive units is extended and arranged along the second direction and is staggered in sequence along the first direction, and the second direction is arranged perpendicular to the first direction.

[0006] In a 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.

[0007] In a specific embodiment, the offset distances between two adjacent linear drive units in each group of linear drive units in the first direction are equal.

[0008] In a specific embodiment, the offset distance is equal to the center distance between two adjacent heald frames in the first direction.

[0009] In a specific embodiment, the spacing distance between two adjacent linear drive units in each group of linear drive units in the second direction is equal.

[0010] In a specific embodiment, a distance between two adjacent direct-drive units in the second direction is 0-5 mm.

[0011] In a specific embodiment, the distance between each group of the linear drive units and the first center line of the heald frame is equal.

[0012] In a specific embodiment, the distance between two adjacent mover modules and the lifting points of the heald frame in the second direction is the center distance between the two direct drive units in the second direction.

[0013] In a specific embodiment, the center line of each of the direct-drive units is located in the first direction or the center line of each of the direct-drive units intersects with the first direction.

[0014] In a specific embodiment, the angle formed by the intersection of the center line of each direct drive unit and the first direction is α, and 0≤α≤60 degrees.

[0015] In a specific embodiment, the heald frame includes a first center line in a first direction and a second center line in a second direction, and the distance between the end of each direct drive unit in the linear drive unit located on one side of the second center line and the second center line decreases successively from far away from the first center line to close to the first center line, and the distance between the end of each drive unit in the linear drive unit located on the other side of the second center line and the second center line of the heald frame increases successively from far away from the first center line to close to the first center line.

[0016] In a specific embodiment, in the second direction, the two groups of the linear drive units are offset, and the offset distance is at least the thickness of the mover module in the second direction.

[0017] In a specific embodiment, each of the direct drive units is an independent and identical minimum drive unit.

[0018] In a specific embodiment, the linear drive module is located above the heald frame.

[0019] In a specific embodiment, the opening mechanism includes two groups of linear drive modules, and the distances between the two groups of linear drive modules and the first center line are equal.

[0020] In a specific embodiment, two groups of the linear drive modules are located at two ends of the heald frame.

[0021] In a specific embodiment, two ends of the heald frame are respectively connected to a mover module of a linear drive module.

[0022] In a specific embodiment, the opening mechanism further includes a plurality of heald frame lifting members, and each of the heald frames is connected to a mover module via a heald frame lifting member.

[0023] In a specific embodiment, the mover module extends from below the direct drive unit and is connected to the corresponding heald frame lifting member.

[0024] In a specific embodiment, the mover module includes a mover body and a mover connecting rod, one end of the mover connecting rod is connected to the mover body, and the other end of the mover body is connected to the heald frame lifting piece.

[0025] In a specific embodiment, the bracket is provided with a through hole, and the heald frame pulling member is passed through the through hole.

[0026] In a specific embodiment, the two ends of the bracket are respectively connected to the frame, and the two groups 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 group of linear drive modules is located on each bracket unit.

[0027] An embodiment of the present invention further provides a loom, which includes a frame and the opening mechanism described in the above embodiment, wherein a bracket of the opening mechanism is connected to the frame.

[0028] In the opening mechanism proposed in the embodiment of the present invention, each heald frame is directly connected to a movable submodule of the linear drive module, so that the linear drive module is used as the main power source for the heald frame to reciprocate up and down. There is no complex mechanical transmission mechanism such as intermediate belt transmission-reversing gear set-conjugate cam set-connecting rod, etc. The operating stroke and state of multiple heald frames can be freely adjusted by controlling the operating stroke and state of multiple direct drive units.

[0029] In addition, the intermediate mechanical transmission mechanism is eliminated, avoiding the transmission conversion process of converting rotational motion into linear motion, which can make the transmission more efficient, the response more direct, and the vibration and noise lower, which is more conducive to high-speed operation.

[0030] At the same time, since each direct drive unit in each group of linear drive units is arranged along the second direction and arranged in a staggered manner in sequence along the first direction, the direct drive unit has enough space to accommodate additional systems such as the lubrication system and the cooling system, and the structure of the direct drive unit is simpler and more reliable, the performance is more stable, and the service life is longer, so that the maintenance times of the opening mechanism driven by the direct drive unit are reduced, and the effective operation of the loom is not affected. In addition, the arrangement of at least two groups of linear drive units is compact, which effectively improves the reliability of the heald frame, and better solves the feasibility problem of one-to-one connection with the heald frame in the limited space constraint of the mover module of the direct drive unit due to the small load spacing of the heald frame, as well as the connection reliability and expansion flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0032] Figure 1 It is a structural schematic diagram of the first embodiment of the opening mechanism of the present invention; Figure 2 Another structural schematic diagram of the first embodiment of the opening mechanism of the present invention; Figure 3 A top view of a first embodiment of the opening mechanism of the present invention; Figure 4 It is a front view of the first embodiment of the opening mechanism of the present invention; Figure 5 Another top view of the first embodiment of the opening mechanism of the present invention; Figure 6 It is another top view of the first embodiment of the opening mechanism of the present invention; Figure 7 It is a schematic diagram of the positional relationship between the cloth fell and the heald frame in the shedding mechanism of the present invention; Figure 8 It is a schematic diagram of the lifting points of each heald frame in the heald frame array in the shedding mechanism of the present invention; Fig. 9 A top view of a second embodiment of the opening mechanism of the present invention; Fig.10 A top view of a third embodiment of the opening mechanism of the present invention; Fig.11 A top view of a fourth embodiment of the opening mechanism of the present invention; Fig.12 A top view of a fifth embodiment of the opening mechanism of the present invention; Fig.13Another top view of the fifth embodiment of the opening mechanism of the present invention.

[0033] Description of Figure Numbers:

[0034] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] The existing heald frame array of a loom has a small spacing between each heald frame and is arranged 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 the connection is compact and reliable, the present invention proposes an opening mechanism 100, which aims to provide an opening mechanism 100 that can directly and freely adjust the running stroke and state of the heald frame, has a simple and reliable structure, and has stable performance.

[0039] The specific structure of the opening mechanism 100 of the present invention will be described below: Combined with Figure 1-4As shown, an embodiment of the present invention proposes an opening mechanism 100, which includes: a heald frame array 10, the heald frame array 10 includes a plurality of heald frames arranged in an array along a first direction; a bracket 20, the bracket 20 is used to connect a frame 30 of a loom; a linear drive module 40, the linear drive module 40 includes at least two groups of linear drive units 401, 402, the linear drive unit 401 includes a plurality of direct drive units 4011, the linear drive unit 402 includes a plurality of direct drive units 4021, wherein each direct drive unit 4011 includes a stator module 40111 and a mover module 40112, and each direct drive unit 4021 includes a stator module 40211 and a mover module 40212, a plurality of stator modules 40111, 40211 are all connected to the bracket 20, a plurality of mover modules 40112, 40212 are slidably matched with a plurality of stator modules 40111, 40211, and each heald frame is connected to a mover module of a linear drive unit, so that each mover module 40112, 40212 drives the corresponding heald frame to reciprocate up and down, wherein each linear drive unit 4011, 4021 in each group of linear drive units 401, 402 is extended and arranged along the second direction and staggered in sequence along the first direction. In the embodiment of the present invention, the extension direction of the heald frame array 10 is the first direction, the direction perpendicular to the first direction is the second direction, and the reciprocating direction of the heald frame array 10 is the third direction. Specifically, in combination with Figure 7 As shown, the first direction is also the extending direction of the cloth fell 50, and the size of the cloth fell 50 gradually increases along the first direction.

[0040] The opening mechanism 100 in the embodiment of the present invention can arrange the linear drive module 40 in the manner of "staggered array of each group of linear drive units, multi-point lifting". That is to say, the multiple direct drive units 4011 in the linear drive unit 401 and the multiple direct drive units 4021 in the linear drive unit 402 are all arranged to extend along the second direction and are sequentially staggered along the first direction, so that the lifting points formed by the direct drive units 4011, 4021 and the heald frames are distributed at multiple points in the second direction. Specifically, the number of lifting points corresponds to the total number of the multiple direct drive units 4011 and the multiple direct drive units 4021 in the two groups of linear drive units. In the embodiment of the present invention, taking the heald frame array 10 having 16 evenly distributed heald frames as an example, there are 8 direct drive units in each group of linear drive units 401, 402, and the number of direct drive units in the two groups of linear drive units is 16, and the number of connection points with the heald frames is also 16.

[0041] Combination Fig.12As shown, 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 to say, 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. Such an arrangement can reduce the occupied area of ​​the linear drive module in the second direction, so that the lifting point of the heald frame is as close as possible to the two ends of the heald frame to ensure the strength of the heald frame, and can ensure the structural strength of the linear drive module without affecting the structural size of the linear drive module.

[0042] Combination Figure 8 As shown, the lifting points a, b, c, d, e, f, g, and h of each heald frame and each direct drive unit are arranged sequentially in the second direction, wherein the distance between the lifting points of two adjacent heald frames along the second direction is equal to the center distance between every two direct drive units in the second direction.

[0043] In the opening mechanism proposed in the embodiment of the present invention, each heald frame is directly connected to a movable submodule of the linear drive module, so that the linear drive module is used as the main power source for the heald frame to reciprocate up and down. There is no complex mechanical transmission mechanism such as intermediate belt transmission-reversing gear set-conjugate cam set-connecting rod, etc. The operating stroke and state of multiple heald frames can be freely adjusted by controlling the operating stroke and state of multiple direct drive units.

[0044] In addition, the intermediate mechanical transmission mechanism is eliminated, avoiding the transmission conversion process of converting rotational motion into linear motion, which can make the transmission more efficient, the response more direct, and the vibration and noise lower, which is more conducive to high-speed operation.

[0045] At the same time, since each direct drive unit in each group of linear drive units is arranged along the second direction and arranged in a staggered manner in sequence along the first direction, the direct drive unit has enough space to accommodate additional systems such as the lubrication system and the cooling system, and the structure of the direct drive unit is simpler and more reliable, the performance is more stable, and the service life is longer, thereby reducing the maintenance times of the opening mechanism driven by the direct drive unit and not affecting the effective operation of the loom. In addition, the arrangement of the two groups of linear drive units is compact, which effectively improves the reliability of the heald frame, and better solves the feasibility problem of one-to-one connection with the heald frame in the limited space constraint of the mover module of the direct drive unit due to the small load spacing of the heald frame, as well as the connection reliability and expansion flexibility.

[0046] Combination Figure 3 , Figure 5As shown, in the first embodiment, the center lines AA of the multiple direct drive units 4011 and the multiple direct drive units 4021 are all located in the first direction. Specifically, two adjacent direct drive units 4011 are sequentially staggered in the first direction, and their staggered distances D are equal. Two adjacent direct drive units 4021 are also sequentially staggered in the first direction, and their staggered distances D' are also equal. Among them, the staggered distances D and D' are equal to the center distances of two adjacent heald frames in the first direction. Two adjacent direct drive units 4011 are extended and arranged in the second direction, and the spacing distances of each direct drive unit 4011 in the second direction are equal. Two adjacent direct drive units 4021 are also extended and arranged in the second direction, and the spacing distances of each direct drive unit 4021 in the second direction are also equal. 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 spacing 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 in the first direction is uniformly arranged, and the extended arrangement in the second direction is also uniformly arranged, which is more convenient for the array arrangement of the direct drive units.

[0047] In a specific embodiment, the distance between two adjacent direct drive units in the second direction is 0-5 mm. The direct drive units are arranged compactly in the second direction, occupying a small space without affecting the installation and maintenance of the direct drive units. Figure 6 As shown, the heald 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 located on one side of the second center line JJ and the second center line JJ decreases successively from far away from the first center line BB to close to the end of each direct drive unit 4011. For example, the distance C between the end of the direct drive unit 4011 and the second center line JJ is greater than the distance C1 between the end of the direct drive unit 4011a and the second center line JJ, that is, C>C1. The distance C' between the end of each direct drive unit 4021 located on the other side of the second center line JJ and the second center line JJ of the heald frame increases successively from far away from the first center line BB to close to the end of each direct drive unit 4021, that is, C'<C1'. Specifically, in combination with Figure 7 As shown, each heald frame in the heald frame array 10 is at a different distance from the cloth fell 50, and the distance between each heald frame and the cloth fell 50 gradually increases along the first direction. Those skilled in the art will know that the farther the heald frame is from the cloth fell 50, the longer its movement distance in the third direction is, the greater the driving force it bears, and the more stable its heald frame structure needs to be. Therefore, the distance between the heald frame 16# farthest from the cloth fell 50 and the lifting point of the corresponding direct drive unit and the first center line BB is the largest.

[0048] Combination Figure 6 and Figure 8As shown, taking the first group of linear drive units 401 as an example, the direct drive unit 4011 drives the heald frame 16#, and its lifting point is a, the direct drive unit 4011a drives the heald frame 15#, and its lifting point is b, and so on, the direct drive unit 4011b and the heald frame 14# have a lifting point c, the direct drive unit 4011c and the heald frame 13# have a lifting point d, the direct drive unit 4011d and the heald frame 12 have a lifting point e, the direct drive unit 4011e and the heald frame 11 have a lifting point f, the direct drive unit 4011f and the heald frame 10 have a lifting point g, the direct drive unit 4011g and the heald frame 9# have a lifting point h, and the distances of the lifting points a, b, c, d, e, f, g, and h from the first center line BB decrease successively. Similarly, the distances from the first center line BB to the lifting points of the heald frame 8# to the heald frame 1# in each direct drive unit 4021 and the second group of linear drive units 402 are also reduced successively. Therefore, the direct drive unit corresponding to the heald frame farther from the cloth fell is farther from the first center line BB and the second center line JJ.

[0049] Combination Figure 3 As shown, 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 direct drive unit compact and occupies a small space.

[0050] Combination Fig. 9 As shown, the present invention provides a second embodiment in a deformable manner. Different from the above embodiment, in the second direction, the two groups of linear drive units 401 and 402 are offset, and the offset distance is at least the thickness of a mover module in the second direction. That is to say, the offset distance of the two groups of linear drive units 401 and 402 must at least ensure that the mover module has enough extension space to connect with the heald frame. In this embodiment, the thickness of the mover module is offset as an example. In other embodiments, more offsets can be made, such as the thickness of two mover modules. That is to say, the distance K between the linear drive unit 401 and the first center line BB is not equal to the distance L between the linear drive unit 402 and the first center line BB, and the difference between K and L is at least the thickness of a mover module. Similarly, in other embodiments, if there is another set of drive modules 40', the distance between a set of direct drive units 401' in the second drive module 40' and the first center line BB is K' and the distance between another set of direct drive units 402' and the first center line BB is L'. In a specific embodiment, since the same heald frame needs to be driven by two linear drive units at both ends, in order to ensure that the forces at both ends of the heald frame are uniform, the linear drive module 40 and the linear drive module 40' are symmetrical about the first center line BB, that is, K is equal to K', and L is equal to L'.

[0051] Combination Fig.10As shown, the present invention provides a third embodiment in a deformable manner. Different from the first embodiment, the two groups of linear drive units 401, 402 are arranged obliquely in the first direction, and the center line AA of each linear drive unit 4011, 402 in the two groups of linear drive units 401, 402 intersects with 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, 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. There is no special limitation on the angle α, as long as the heald frame can be effectively lifted and pulled to perform up and down reciprocating motion.

[0052] Combination Fig.11 As shown, the present invention provides a fourth embodiment in a deformable manner. Different from the third embodiment, the inclination direction of the two groups of linear drive units 401 and 402 in the first direction is opposite to the inclination direction in the third embodiment with respect to the first direction. That is, the angle formed by the center line of the direct drive unit 4011 and the opposite direction of the first direction is α.

[0053] It is understandable that in other embodiments, the opening mechanism described in the third embodiment and the fourth embodiment may also have the first group of linear drive units 401 and the second group of linear drive units 402 offset in the second direction, and the offset distance is at least the thickness of one mover module in the second direction. (not shown) Combination Figure 12-13 As shown, in the fifth embodiment, the heald frame array includes a first center line BB in the first direction and a second center line JJ in the second direction. Different from the first embodiment, the distance H 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 increases successively, for example, H is less than H1, and the distance H' between the end of each drive unit 4021 in the linear drive unit 402 located on the other side of the second center line and the second center line JJ of the heald frame from far away to close to the first center line BB decreases successively, for example, H' is greater than H1'. The arrangement of the linear drive module in this embodiment can achieve the effect of effectively driving the movement of the heald frame.

[0054] Similarly, in a modified embodiment of the fifth embodiment, the two groups of linear drive units are offset in the second direction, and the offset distance is also at least the thickness of one mover module in the second direction. Fig. 9 The same misalignment as in the second embodiment shown in FIG. Similarly, in other deformable embodiments, the center line of each direct drive unit in the fifth embodiment may also intersect with the first direction, that is, the two groups of linear drive units may also be tilted in the first direction, and the tilting manner is the same as that of the third and fourth embodiments.

[0055] Alternatively, in a specific embodiment, in combination with Figure 1-13 As shown, the direct-drive units in each group of linear drive units are arranged closely, and the spacing between two adjacent direct-drive units in the second direction is 0-5mm. This arrangement makes the linear drive module occupy a small space and have a compact structure. Of course, in other embodiments, the two adjacent direct-drive units in each group of linear drive units can also be arranged at a distance, or the direct-drive units in the first group of linear drive units are arranged closely, and the direct-drive units in the second group of linear drive units are arranged at intervals. The expandable embodiment combinations of the present invention are not listed one by one in this article, as long as each direct-drive unit in each group of linear drive units is extended and arranged along the second direction and staggered in sequence along the first direction, and can effectively drive the heald frame to reciprocate up and down.

[0056] Specifically, the direct drive units in the embodiments of the present invention are all independent and identical minimum drive units. An independent direct drive unit can be understood as no coupling between any direct drive units. An identical direct drive unit can be understood as each direct drive unit is basically configured in the same direction, but there are slight differences such as misalignment, spacing, and tilt. For example, the configuration of the direct drive units in the third direction is exactly the same, such as the extension length of the mover module in the third direction is exactly the same. When arranging, it is only necessary to arrange each direct drive unit along the second direction and ensure that there is a misalignment distance in the first direction in sequence. The minimum drive unit can be understood as a direct drive unit that drives only one heald frame. That is to say, in the embodiments of the present invention, the direct drive unit is a modular drive unit with strong productization and scalability. In other schemes, if the number of heald frames increases or decreases, the number of corresponding direct drive units increases or decreases accordingly to achieve the arrangement of the opening mechanism.

[0057] In a specific embodiment, in combination Figure 1 As shown in FIGS. 2 and 4 , the linear drive module is located above the heald frame, that is, in the opposite direction of the third direction. By arranging 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.

[0058] In actual application, the bracket 20 may be located above the heald frame array 10 or at 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 may be arranged above the heald frame array 10 so that the linear drive module 30 is carried on the bracket 20.

[0059] Combination Figure 1-13As shown, the opening mechanism includes two sets of linear drive modules 40, 40', which are located above the heald frame array 10, and the distances between the two sets of linear drive modules 40, 40' and the first center line BB are equal. Figure 3 As shown, the distance G between the first linear drive unit 401 in the first linear drive module 40 and the first center line BB is equal to the distance I between the first linear drive unit 401' in the second linear drive module 40' and the first center line BB. The distance G' between the first linear drive unit 402 in the first linear drive module 40 and the first center line BB is equal to the distance 'I' between the second linear drive unit 402' in the second linear drive module 40' and the first center line BB. As long as it can be ensured that the two direct 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 of the heald frame.

[0060] Combination Fig. 9 As shown, in other embodiments, the two groups of linear drive units 401, 402 in the first drive module 40 are misaligned in the second direction, that is, K and L are not equal, and the two groups of linear drive units 401', 402' in the second drive module 40' are also misaligned in the second direction, that is, K' and L' are also not equal. In a specific embodiment, because the same heald frame needs to be driven by two linear drive units at both ends, in order to ensure that the forces at both ends of the heald frame are uniform. Therefore, the linear drive module 40 and the linear drive module 40' are symmetrical about the first center line BB, that is, K is equal to K', and L is equal to L'.

[0061] In a 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 both ends, that is, each heald frame is driven by two moving submodules located at both ends of the heald frame, making the transmission more efficient.

[0062] Combination Figure 4 As shown, in a specific embodiment, the opening mechanism 100 further includes a plurality of heald frame lifting members 60, and each heald frame is connected to a mover module 40112, 40212 through a heald frame lifting member 60. In this way, by using the heald frame lifting member 60 to connect the heald frame and the mover module 40112, 40212, it is easier to achieve the connection between the heald frame and the mover module 40112, 40212. In actual application, 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 mover module, and is not specifically limited here.

[0063] Among them, the mover modules 40112 and 40212 extend from the bottom of the direct drive unit 401 and are connected to the corresponding heald frame lifting member 60 (below the height direction, extending toward the third direction). That is to say, the mover module is directly connected to the heald frame lifting member 60 in the height direction, and does not need to be connected through a complex adapter structure. Specifically, the mover module includes a mover body and a mover connecting rod, one end of the mover connecting rod is connected to the mover body, and the other end of the mover connecting rod is connected to the heald frame lifting member. In most cases, the mover body is arranged in the stator body, and the mover connecting rod extends from the mover body and is connected to the heald frame lifting member. Of course, in other embodiments, the mover, the mover connecting rod and the heald frame lifting member can be set as a structure in which two or three are integrated.

[0064] In a specific embodiment, the mover module and the heald frame lifting member can be connected through a threaded screw hole. In other embodiments, a sink groove is provided on one side of the mover module, and the end of the heald frame lifting member away from the heald frame is arranged in the sink groove. In this way, by setting the end of the heald frame lifting member away from the heald frame in the sink groove of the mover module, the heald frame lifting member does not occupy additional space, so that adjacent mover modules can be arranged more compactly. The connection method between the mover module and the heald frame lifting member is not limited, as long as it can better solve the feasibility problem of the mover module of the direct drive unit being connected one-to-one with the heald frame in a limited space constraint due to the small load spacing of the heald frame.

[0065] In a specific embodiment, the bracket is provided with a through hole, and the heald frame pulling member 60 is passed through the through hole.

[0066] With such arrangement, during the assembly process, the heald frame lifting member 60 can be first passed through the through hole of the bracket, and then one end of the heald frame lifting member 60 can be connected to the corresponding heald frame, and the other end of the heald frame lifting member 60 can be connected to the corresponding mover module, which makes it easier to connect the heald frame lifting member 60 with the heald frame and the mover module.

[0067] In a specific embodiment, in combination Figure 1 As shown, the opening mechanism 100 includes a bracket 20, both ends of which are connected to the frame 30 respectively, and the linear drive modules 40, 40' are located at both ends of the bracket 20, that is, the bracket 20 is an integral structure, and the integral bracket structure spans across both sides of the heald frame array 10, wherein the bracket 20 and the linear drive modules 40, 40' are fastened and connected by screws and bolts.

[0068] In another specific embodiment, the bracket 20 includes two bracket units, which are respectively located at two ends of the frame 30, and each linear drive module 40, 40' is located on each bracket unit. The bracket is used to fix the direct drive unit and the loom frame, and has the functions of supporting, fixing and installing.

[0069] The embodiment of the present invention also provides a loom, which includes a frame 30 and an opening mechanism connected to the frame 30. The opening mechanism is the same as the opening mechanism 100 introduced in the above embodiments. Since the loom adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0070] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An opening mechanism, characterized in that: include: A heald frame array, wherein the heald frame array comprises a plurality of heald frames arranged in an array along a first direction; A bracket, the bracket being used to connect to a frame of a loom; A linear drive module, the linear drive module includes at least two groups of linear drive units, the linear drive unit includes multiple direct drive units, the direct drive unit includes a stator module and a mover module, the stator module is connected to the bracket, the mover module is slidably matched with the stator module, each of the heald frames is connected to a mover module of the direct drive unit, so that each mover module drives the corresponding heald frame to reciprocate up and down, wherein each of the direct drive units in each group of the linear drive units is extended and arranged along the second direction and is staggered in sequence along the first direction, and the second direction is perpendicular to the first direction.

2. The opening mechanism according to claim 1, characterized in that: A thickness of the direct driving unit in the first direction is greater than a thickness of the direct driving unit in the second direction.

3. The opening mechanism according to claim 1, characterized in that: The offset distances of two adjacent linear drive units in each group of the linear drive units in the first direction are equal.

4. The opening mechanism according to claim 3, characterized in that: The offset distance is equal to the center distance between two adjacent heald frames in the first direction.

5. The opening mechanism according to claim 1, characterized in that: The spacing distance between two adjacent linear drive units in each group of the linear drive units in the second direction is equal.

6. The opening mechanism according to claim 1, characterized in that: The distance between each group of the linear drive units and the first center line of the heald frame is equal.

7. The opening mechanism according to claim 1, characterized in that: The distance between the lifting points of two adjacent mover 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 according to claim 1, characterized in that: The center line of each of the direct-drive units is located in the first direction or the center line of each of the direct-drive units intersects with the first direction.

9. The opening mechanism according to claim 8, characterized in that: The angle formed by the intersection of the center line of each direct drive unit and the first direction is α, 0≤α≤60 degrees.

10. The opening mechanism according to claim 1, characterized in that: The heald frame includes a first center line in the first direction and a second center line in the second direction, and the distance between the end of each direct drive unit in the linear drive unit located on one side of the second center line and the second center line decreases successively from being away from to being close to the first center line, and the distance between the end of each drive unit in the linear drive unit located on the other side of the second center line and the second center line of the heald frame increases successively from being away from to being close to the first center line.

11. The opening mechanism according to claim 1, characterized in that: In the second direction, the two groups of linear drive units are offset, and the offset distance is at least the thickness of the mover module in the second direction.

12. The opening mechanism according to claim 5, characterized in that: The distance between two adjacent direct-drive units in the second direction is 0-5 mm.

13. The opening mechanism according to claim 1, characterized in that: Each of the direct drive units is an independent and identical minimum drive unit.

14. The opening mechanism according to claim 1, characterized in that: The linear drive module is located above the heald frame.

15. The opening mechanism according to claim 1, characterized in that: The opening mechanism comprises two groups of linear drive modules, and the distances between the two groups of linear drive modules and the first center line are equal.

16. The opening mechanism according to claim 15, characterized in that: The two groups of linear drive modules are located at two ends of the heald frame.

17. The opening mechanism according to claim 16, characterized in that: The two ends of the heald frame are respectively connected to a moving submodule of a linear driving module.

18. The opening mechanism according to claim 1, characterized in that: The opening mechanism further comprises a plurality of heald frame lifting members, and each of the heald frames is connected to a mover module via a heald frame lifting member.

19. The opening mechanism according to claim 18, characterized in that: The mover module extends from below the direct drive unit and is connected to the corresponding heald frame lifting member.

20. The opening mechanism according to claim 18, characterized in that: The mover module comprises a mover body and a mover connecting rod, one end of the mover connecting rod is connected to the mover body, and the other end of the mover body is connected to the heald frame lifting piece.

21. The opening mechanism according to claim 18, characterized in that: The bracket is provided with a through hole, and the heald frame pulling piece is passed through the through hole.

22. The opening mechanism according to claim 15, characterized in that: The two ends of the bracket are respectively connected to the frame, and the two groups of linear drive modules are located at the two ends of the bracket; Alternatively, the bracket includes two bracket units, the two bracket units are respectively located at two ends of the frame, and each group of the linear drive modules is located on each of the bracket units.

23. A loom, characterized in that: It comprises a frame and an opening mechanism as claimed in any one of claims 1 to 22, wherein a bracket of the opening mechanism is connected to the frame.

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