Ribbon loom

Abstract

The invention discloses a ribbon loom, and relates to the field of textile machinery. According to the ribbon loom, the first swing part and the second swing part which are longitudinally spaced are arranged and matched with the closed-loop flexible transmission element to form a linkage path, and multi-stage position dynamic switching of the transmission swing part is achieved in combination with the electromagnetic control type hooking unit of the dual-drive mechanism. The driving mechanism comprises a swing seat driven by an eccentric wheel, a connecting arm penetrating through the movable window and a hooking mechanism with a selective locking function, and the hook body assembly is controlled to be connected and disconnected through an electromagnetic actuator. And the traction assembly adopts a chain-tension spring elastic reset structure, so that the transmission stability is ensured. Through the synergistic effect of mechanical transmission and electromagnetic control, the technical problems that a traditional ribbon loom is low in pattern adjusting efficiency and poor in positioning precision are solved, the requirements that warp yarn can be freely changed in the upper direction, the middle direction and the lower direction and can be circulated infinitely are met, and the mechanism is simple and low in failure rate.

Description

Technical Field

[0001] The invention relates to the technical field of textile machinery, in particular to a ribbon loom. Background Art

[0002] A weaving machine is a device used to produce various types of webbings. Its structure is mainly composed of multiple groups of palm frames driving the warp yarns to move up and down to form an opening, and the weft yarns are woven through the weft movement of the opening.

[0003] When the weaving machine is in use, it is generally achieved by manually arranging the pattern chain through the rocker arm to drive the warp yarn on the palm frame up and down to achieve different weaving patterns. However, the pattern changes are limited and the cycle is short, which is far from meeting the needs of the existing weaving industry. Manual operation is required, which increases a lot of time and labor costs.

[0004] The current weaving machines on the market use the reciprocating motion of a rocker arm to achieve the up and down movement of the warp yarn on the palm frame. One end of the rocker arm is hinged to the frame and the other end is linked to the palm frame. A transmission mechanism is arranged under the rocker arm. The transmission mechanism includes an extension roller, a sprocket and a pattern plate chain that cooperates with the two. The two ends of the pattern plate chain are respectively mounted on the extension roller and the sprocket. The pattern plate chain is composed of several chain plates. The movement trajectory of the rocker arm is controlled by the shape of the chain plate, and the palm frame stroke is expanded to three positions: upper, middle and lower for adjustment. However, the pattern cycle is short, the pattern complexity is limited and the adjustment takes a long time. Summary of the invention

[0005] The present invention aims to provide a ribbon loom which, through the integration of a transmission mechanism and electromagnetic control technology, solves the problems of low adjustment efficiency, poor positioning accuracy and insufficient dynamic response of traditional equipment, and realizes rapid weaving of highly complex patterns.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a kind of weaving machine comprises a frame, on which a plurality of groups of palm frames and transmission pendulums linked with the plurality of palm frames are arranged side by side, one end of each transmission pendulum is hinged to the frame, and the other end is connected to a traction assembly that provides elastic reset force, and a transmission mechanism is provided on the frame, comprising: a first swinging member and a second swinging member arranged at intervals in the longitudinal direction, both of which are respectively hinged to the frame and can swing independently around their respective hinge axes; a driving mechanism connected to the first swinging member and the second swinging member respectively, for controlling the swinging state of the two; a closed-loop flexible transmission element, both ends of which are fixed to the frame, and the middle section successively bypasses the free end of the first swinging member, the free end of the transmission pendulum and the free end of the second swinging member to form a linkage path; by adjusting the relative swinging relationship between the first swinging member and the second swinging member, the transmission pendulum is made to produce a multi-level position dynamic switching including an upper limit position, a middle position and a lower limit position under the cooperation of the elastic force of the traction assembly.

[0007] As a preferred technical solution of the present invention, each driving mechanism includes: a power conversion unit: comprising a swing seat hinged to a frame, a transmission arm and an eccentric wheel fixed to a driving shaft, wherein one end of the transmission arm is hinged to the swing seat and the other end is transmission-connected to the eccentric wheel; a motion transmission unit: comprising a connecting arm fixed to the swing member and a movable locking component, wherein the connecting arm passes through a movable window of the swing seat and is rotationally connected to the movable locking component; an electromagnetically controlled hook unit: comprising a hook body assembly, an electromagnetic actuator and a magnetic suction module, wherein the hook body assembly and the movable locking component form a selective lock at a preset position, and the electromagnetic actuator controls the engagement and separation of the hook body assembly through the magnetic suction module.

[0008] As a preferred technical solution of the present invention, the movable locking component includes a rotating block hinged on the connecting arm, a first lower hook and a second lower hook hinged on both sides of the rotating block, and the hook mouths of the first lower hook and the second lower hook are in opposite directions; the hook body assembly includes a first upper hook matching the first lower hook and a second upper hook matching the second lower hook, the first upper hook and the second upper hook are rotatably installed on the frame and an elastic reset element is connected between the two; the magnetic suction module includes two magnetic conductive blocks respectively arranged on the outside of the first upper hook and the second upper hook; the electromagnetic actuator includes a first solenoid valve and a second solenoid valve respectively arranged on the side away from each other of the first upper hook and the second upper hook; there is a swing gap between the first solenoid valve and the second solenoid valve and the corresponding magnetic conductive blocks.

[0009] As a preferred technical solution of the present invention, support bosses are provided on both sides of the movable window of the swing seat, and both sides of the rotating block are mounted on the support bosses.

[0010] As a preferred technical solution of the present invention, the closed-loop flexible transmission element is a transmission chain, and a meshing tooth structure is provided on the inner side of the chain link to form a tooth profile matching with the sprockets arranged at the free end of the first swinging member, the free end of the transmission swinging member and the free end of the second swinging member.

[0011] As a preferred technical solution of the present invention, the traction assembly includes: a traction chain, one end of which is connected to the transmission pendulum and the other end is connected to the frame through a tension spring.

[0012] As a preferred technical solution of the present invention, the traction assembly also includes a transmission sprocket located on the transmission path of the traction chain, the transmission sprocket is rotatably mounted on the frame and the transmission sprocket is meshed with the traction chain for transmission.

[0013] Compared with the prior art, the present invention has the following beneficial effects: Based on the linkage design of the independent drive of the dual swing parts and the closed-loop flexible transmission element, the transmission swing part can be dynamically switched between the upper, middle and lower limit positions by adjusting the relative phase difference of the two swing parts, with fast response, which significantly expands the diversity of the ribbon pattern. Based on the adjustable phase difference between the first swing part and the second swing part, combined with the high-frequency switching of the three limit positions of the transmission swing part, the warp yarn can be arbitrarily changed in the upper, middle and lower positions and can be infinitely cycled. The mechanism is simple and the failure rate is low.

[0014] By setting different movement combinations (upper-middle, middle-lower, upper-lower) for multiple groups of palm frames, geometrically increasing pattern changes can be achieved and a multi-dimensional composite weaving effect can be produced.

[0015] The electromagnetic actuator and magnetic suction module are used to collaboratively control the engagement / disengagement of the hook assembly. The position is self-locked through mechanical hooking in the power-off state, and is quickly released when the power is on, reducing operation time and labor costs while taking into account reliability and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the structure of the outer side of the present invention; Figure 4 It is a structural schematic diagram of the transmission mechanism in the present invention; Figure 5 It is a structural schematic diagram of the driving mechanism in the present invention; Figure 6 It is a schematic structural diagram of the cooperation between the swing seat and the swing member in the present invention.

[0017] Figure numerals: 1, frame; 11, palm frame; 12, transmission swing; 2, traction assembly; 21, traction chain; 22, tension spring; 23, transmission sprocket; 3, first swing member; 4, second swing member; 5, driving mechanism; 51, power conversion unit; 511, swing seat; 5111, movable window; 5112, supporting boss; 512, transmission arm; 513, driving shaft; 514, eccentric wheel; 52, motion transmission unit; 521, connecting arm ; 522, movable locking component; 5221, rotating block; 5222, first lower hook; 5223, second lower hook; 53, electromagnetically controlled hook unit; 531, hook body assembly; 5311, first upper hook; 5312, second upper hook; 532, electromagnetic actuator; 5321, first solenoid valve; 5322, second solenoid valve; 533, magnetic suction module; 5331, magnetic conductive block; 534, elastic reset element; 6, closed-loop flexible transmission element. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figure 1-6 A loom shown in the figure comprises a frame 1, on which a plurality of groups of palm frames 11 (through which a plurality of warp threads are inserted, which is a prior art and therefore not specifically described) and transmission pendulums 12 linked to the plurality of palm frames 11 are arranged side by side, one end of each transmission pendulum 12 is hinged to the frame 1, and the other end is connected to a traction assembly 2 providing an elastic reset force, and a transmission mechanism is provided on the frame 1, comprising: a first swinging member 3 and a second swinging member 4 arranged at intervals in the longitudinal direction, both of which are hinged to the frame 1 and can swing independently around their respective hinge axes; a driving mechanism 5 connected to the first swinging member 3 and the second swinging member 4, respectively, for controlling the swinging states of the two; a closed-loop flexible transmission element 6, both ends of which are fixed to the frame 1, and the middle section of which successively bypasses the free end of the first swinging member 3, the free end of the transmission pendulum 12 and the free end of the second swinging member 4 to form a linkage path; by adjusting the relative swinging relationship between the first swinging member 3 and the second swinging member 4, the transmission pendulum 12 is made to produce a multi-level position dynamic switching including an upper limit position, a middle position and a lower limit position under the cooperation of the elastic force of the traction assembly 2.

[0021] Based on the linkage design of the independent drive of the dual swing members and the closed-loop flexible transmission element 6, by adjusting the relative phase difference of the two swing members, the transmission swing member 12 can be dynamically switched between the upper, middle and lower three limit positions, with fast response, which significantly expands the diversity of the ribbon pattern. Based on the adjustable phase difference characteristics of the first swing member 3 and the second swing member 4, combined with the high-frequency switching of the three limit positions of the transmission swing member 12, the warp yarn can be arbitrarily changed in the upper, middle and lower positions and can be infinitely cycled, with a simple mechanism and low failure rate.

[0022] Each driving mechanism 5 includes: a power conversion unit 51: including a swing seat 511 hinged to the frame 1 (swinging left and right, one side is raised while the other side is lowered, and vice versa), a transmission arm 512 and an eccentric wheel 514 fixed to the driving shaft 513, one end of the transmission arm 512 is hinged to the swing seat 511, and the other end is transmission-connected to the eccentric wheel 514; a motion transmission unit 52: including a connecting arm 521 fixed to the swing member and a movable locking component 522, the connecting arm 521 passes through the movable window 5111 of the swing seat 511 and is rotationally connected to the movable locking component 522; an electromagnetically controlled hook unit 53: including a hook body assembly 531, an electromagnetic actuator 532 and a magnetic attraction module 533, the hook body assembly 531 and the movable locking component 522 form a selective lock at a preset position, and the electromagnetic actuator 532 controls the engagement and separation of the hook body assembly 531 through the magnetic attraction module 533.

[0023] By setting different movement combinations (upper-middle, middle-lower, upper-lower) for multiple groups of palm frames 11, geometrically increasing pattern changes can be achieved, and a multi-dimensional composite weaving effect can be produced; the electromagnetic actuator 532 and the magnetic suction module 533 are used to coordinately control the engagement / disengagement of the hook body component 531, and the position is self-locked by mechanical hooking in the power-off state, and is quickly released when the power is on, thereby reducing operation time and labor costs, and taking into account reliability and energy saving.

[0024] The movable locking component 522 includes a rotating block 5221 hinged to the connecting arm 521, a first lower hook 5222 and a second lower hook 5223 hinged to both sides of the rotating block 5221, and the hook openings of the first lower hook 5222 and the second lower hook 5223 are in opposite directions; the hook body assembly 531 includes a first upper hook 5311 matched with the first lower hook 5222 and a second upper hook 5312 matched with the second lower hook 5223, the first upper hook 5311 and the second upper hook 5312 are rotatably mounted on the frame 1 and both An elastic reset element 534 (a tension spring may be used) is connected therebetween; the magnetic attraction module 533 includes two magnetic conductive blocks 5331 respectively arranged on the outside of the first upper hook 5311 and the second upper hook 5312; the electromagnetic actuator 532 includes two first solenoid valves 5321 and second solenoid valves 5322 respectively arranged on the sides of the first upper hook 5311 and the second upper hook 5312 away from each other; there is a swing gap between the first solenoid valve 5321 and the second solenoid valve 5322 and the corresponding magnetic conductive blocks 5331.

[0025] Support bosses 5112 are provided on both sides of the movable window 5111 of the swing seat 511 , and both sides of the rotating block 5221 are mounted on the support bosses 5112 .

[0026] The closed-loop flexible transmission element 6 is a transmission chain, and a meshing tooth structure is provided on the inner side of its chain link to form a tooth profile matching with the sprockets arranged at the free end of the first swing member 3, the free end of the transmission swing member 12 and the free end of the second swing member 4.

[0027] The traction assembly 2 includes: a traction chain 21, one end of which is connected to the transmission pendulum 12, and the other end is connected to the frame 1 through a tension spring 22.

[0028] The traction assembly 2 further includes a transmission sprocket 23 located on the transmission path of the traction chain 21 . The transmission sprocket 23 is rotatably mounted on the frame 1 and is meshed with the traction chain 21 for transmission.

[0029] Working principle: The motor drives the driving shaft 513, and the eccentric wheel 514 and the transmission arm 512 work together to push the swing seat 511 to make reciprocating swing motion, and the first lower hook 5222 and the second lower hook 5223 of the corresponding swing member are pushed to the highest point through the supporting bosses 5112 on both sides to contact the first upper hook 5311 and the second upper hook 5312 until the upper hook is opened. Whether it is hooked at this time depends on the working state of the corresponding solenoid valve.

[0030] The first upper hook 5311 and the second upper hook 5312 are separated from the first lower hook 5222 and the second lower hook 5223, and the lower hooks fall with the swing seat 511. Conversely, at this time, the first solenoid valve 5321 and the second solenoid valve 5322 are not energized, and the magnetic blocks 5331 on both sides are not attracted to the first solenoid valve 5321 and the second solenoid valve 5322. Affected by the pulling force of the traction component 2 and the elastic reset part, the first upper hook 5311 and the second upper hook 5312 return to their original positions and hook the first lower hook 5222 and the second lower hook 5223 to make them stay at the highest point.

[0031] 1. The upper swing seat 511 and the lower swing seat 511 push the second lower hook 5223 corresponding to the upper swing seat 511 and the first lower hook 5222 corresponding to the lower swing seat 511 to the highest point respectively, and the upper second solenoid valve 5322 and the lower first solenoid valve 5321 are not energized. The upper second upper hook 5312 and the lower first upper hook 5311 hook the upper second lower hook 5223 and the lower first lower hook 5222 respectively, so that they stay at the highest point. The upper and lower two sets of swing seats 511 select the other side to lock as the transmission arm 512 moves. The upper swing seat 511 and the lower swing seat 511 push the upper first lower hook 5222 and the lower second lower hook 5223 to the highest point. The upper first solenoid valve 5322 and the lower first solenoid valve 5321 are not energized. 321, the second solenoid valve 5322 at the bottom is not energized, the first upper hook 5311 at the top and the second upper hook 5312 at the bottom respectively hook the first lower hook 5222 at the top and the second lower hook 5223 at the bottom to make them stay at the highest point, and the upper and lower two sets of swing seats 511 fall back with the movement of the transmission arm 512. At this time, point D formed by the free end of the first swing member 3 and point C formed by the free end of the second swing member 4 are at the lowest point, because the free ends of the first swing member 3 and the second swing member 4 will be pulled downward in the hooked state, and the transmission swing member 12 is in the highest position at this time. It should be noted that: the first lower hook 5222 and the second lower hook 5223 of the first swing member 3 and the second swing member 4 can be connected with the corresponding first upper hook 5311 and the second upper hook 5312 at the same time.

[0032] 2. The upper swing seat 511 and the lower swing seat 511 push the second lower hook 5223 corresponding to the upper swing seat 511 and the first lower hook 5222 corresponding to the lower swing seat 511 to the highest point respectively. The upper second solenoid valve 5322 and the lower first solenoid valve 5321 are energized, and the upper second upper hook 5312 and the lower first upper hook 5311 will not hook the upper second lower hook 5223 and the lower first lower hook 5222. The first swing member 3 and the second swing member 4 fall back with the corresponding swing seat 511, and the upper and lower two groups of swing seats 511 select the other side to lock with the movement of the transmission arm 512. The upper swing seat 511 and the lower The swing seat 511 pushes the first lower hook 5222 at the top and the second lower hook 5223 at the bottom to the highest point, and the first solenoid valve 5321 at the top and the second solenoid valve 5322 at the bottom are energized, then the first upper hook 5311 at the top and the second upper hook 5312 at the bottom will not hook the first lower hook 5222 at the top and the second lower hook 5223 at the bottom, and the first swing member 3 and the second swing member 4 fall back with the upper and lower groups of swing seats 511. At this time, point D formed by the free end of the first swing member 3 and point C formed by the free end of the second swing member 4 are at the highest point, and the transmission swing member 12 is at the lowest position. It should be noted that the first swing member 3 and the second swing member 4 are all in a decoupled state.

[0033] 3. The upper swing seat 511 and the lower swing seat 511 push the second lower hook 5223 corresponding to the upper swing seat 511 and the first lower hook 5222 corresponding to the lower swing seat 511 to the highest point respectively. The upper second solenoid valve 5322 is not energized and the lower first solenoid valve 5321 is energized. Then the upper second upper hook 5312 hooks the upper second lower hook 5223, and the lower first upper hook 5311 does not hook the lower first lower hook 5222. The upper and lower two groups of swing seats 511 select the other side to lock as the transmission arm 512 moves. The upper swing seat 511 and the lower swing seat 511 push the upper first lower hook 5222 and the lower second lower hook 5223 to the highest point respectively. The upper first solenoid valve 5321 is not energized and the lower second solenoid valve 5322 is energized. Then the upper first upper hook 5312 hooks the upper second lower hook 5223, and the lower first upper hook 5311 does not hook the lower first lower hook 5222. The hook 5311 hooks the first lower hook 5222 at the top, and the second upper hook 5312 at the bottom will not hook the second lower hook 5223 at the bottom. At this time, point D formed by the free end of the first swing member 3 is at the lowest point and point C formed by the free end of the second swing member 4 is at the highest point. At this time, the transmission pendulum 12 is in the middle position. It should be noted that: it is sufficient to meet the requirement that the two lower hooks of one group of swing members are hooked with the two upper hooks, and the two lower hooks of the other group of swing members are unhooked from the two upper hooks. It is not necessarily that all the upper group of swing members are hooked, but it can also be that the upper group of swing members is unhooked and the lower group of swing members is hooked. Point C and point D in this embodiment are at the highest point and the lowest point, which can be understood as the relative high point and relative low point to which point C and point D can be transformed in the three states of the transmission pendulum 12; the top and the bottom correspond to the two groups of driving mechanisms 5 seen in the longitudinal direction in the accompanying drawings.

[0034] The whole process completes the three actions of high, medium and low respectively, that is, the brown frame 11 forms a double-opening state, which not only forms a double opening, but also realizes the advantage of infinite loop.

[0035] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A ribbon loom, comprising a frame (1), on which a plurality of groups of palm frames (11) and transmission pendulums (12) linked to the plurality of palm frames (11) are arranged side by side, one end of each transmission pendulum (12) is hinged to the frame (1), and the other end is connected to a traction assembly (2) providing an elastic restoring force, characterized in that: The frame (1) is provided with a transmission mechanism, comprising: a first swinging member (3) and a second swinging member (4) arranged at intervals in the longitudinal direction, the two members being respectively hinged to the frame (1) and being capable of independently swinging around their respective hinge axes; a driving mechanism (5) connected to the first swinging member (3) and the second swinging member (4) and being used to control the swinging states of the two members; a closed-loop flexible transmission element (6), the two ends of which are fixed to the frame (1), and the middle section of which sequentially passes around the free end of the first swinging member (3), the free end of the transmission swinging member (12) and the free end of the second swinging member (4) to form a linkage path; by adjusting the relative swinging relationship between the first swinging member (3) and the second swinging member (4), the transmission swinging member (12) is able to generate a multi-stage position dynamic switch including an upper limit position, a middle position and a lower limit position under the cooperation of the elastic force of the traction component (2).

2. The ribbon loom according to claim 1, characterized in that: Each driving mechanism (5) comprises: a power conversion unit (51): comprising a swing seat (511) hinged to the frame (1), a transmission arm (512) and an eccentric wheel (514) fixed to the driving shaft (513), wherein one end of the transmission arm (512) is hinged to the swing seat (511) and the other end is transmission-connected to the eccentric wheel (514); a motion transmission unit (52): comprising a connecting arm (521) fixed to the swing member and a movable locking component (522), wherein the connecting arm (521) is ) passes through the movable window (5111) of the swing seat (511) and is rotatably connected to the movable locking component (522); the electromagnetically controlled hook unit (53): comprises a hook body component (531), an electromagnetic actuator (532) and a magnetic attraction module (533), the hook body component (531) and the movable locking component (522) form a selective lock at a preset position, and the electromagnetic actuator (532) controls the engagement and separation of the hook body component (531) through the magnetic attraction module (533).

3. The ribbon loom according to claim 2, characterized in that: The movable locking component (522) comprises a rotating block (5221) hinged to the connecting arm (521), a first lower hook (5222) and a second lower hook (5223) hinged to both sides of the rotating block (5221), wherein the hook openings of the first lower hook (5222) and the second lower hook (5223) are in opposite directions; the hook body assembly (531) comprises a first upper hook (5311) matched with the first lower hook (5222) and a second upper hook (5312) matched with the second lower hook (5223), wherein the first upper hook (5311) and the second upper hook (5312) are rotatably mounted on the machine The frame (1) is connected to the frame and an elastic reset element (534) is connected therebetween; the magnetic attraction module (533) comprises two magnetic conductive blocks (5331) respectively arranged on the outside of the first upper hook (5311) and the second upper hook (5312); the electromagnetic actuator (532) comprises a first electromagnetic valve (5321) and a second electromagnetic valve (5322) respectively arranged on the side of the first upper hook (5311) and the second upper hook (5312) away from each other; there is a swing gap between the first electromagnetic valve (5321) and the second electromagnetic valve (5322) and the corresponding magnetic conductive blocks (5331).

4. The ribbon loom according to claim 3, characterized in that: Support bosses (5112) are provided on both sides of the movable window (5111) of the swing seat (511), and both sides of the rotating block (5221) are mounted on the support bosses (5112).

5. The ribbon loom according to claim 1, characterized in that: The closed-loop flexible transmission element (6) is a transmission chain, and a meshing tooth structure is provided on the inner side of the chain link thereof, which forms a tooth profile matching with the sprockets provided at the free end of the first swinging member (3), the free end of the transmission swinging member (12) and the free end of the second swinging member (4).

6. The ribbon loom according to claim 1, characterized in that: The traction assembly (2) comprises: a traction chain (21), one end of which is connected to the transmission pendulum (12) and the other end of which is connected to the frame (1) via a tension spring (22).

7. The ribbon loom according to claim 6, characterized in that: The traction assembly (2) further comprises a transmission sprocket (23) located on the transmission path of the traction chain (21); the transmission sprocket (23) is rotatably mounted on the frame (1) and the transmission sprocket (23) is meshed with the traction chain (21) for transmission.

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