Weft hook and steel buckle stroke connecting rod transmission mechanism of shuttleless loom

Abstract

The utility model discloses a weft hook and steel buckle stroke connecting rod drive mechanism of shuttleless weaving machine, including the installation board and its connecting piece of left and right distribution, be equipped with first rotation axis and second rotation axis between the installation board, first rotation axis transmission steel buckle before and after swing, second rotation axis transmission weft hook swing, its characterized in that: installation board is equipped with respectively transmission first rotation axis and second rotation axis's first connecting rod group and second connecting rod group, and first connecting rod group and second connecting rod group are all by eccentric power source transmission, and first connecting rod group and second connecting rod group have different initial phase, and corresponding first connecting rod group transmission first rotation axis's action lags behind or leads second connecting rod group transmission second rotation axis's action, and steel buckle's action lags behind or leads weft hook's action. The utility model adopts the asynchronous time delay action of steel buckle and weft hook, realizes the weaving of wide width weaving belt.

Description

Technical Field

[0001] This utility model relates to an improved invention of a ribbon loom, and more particularly to an improved invention of a weft hook and steel buckle stroke linkage transmission mechanism for a shuttleless ribbon loom. Background Technology

[0002] In traditional shuttleless ribbon looms, the weft hook and the steel buckle are key components in the ribbon weaving process. The weft hook typically performs a left-right oscillating motion to feed the weft yarn between the warp yarns; while the steel buckle performs a back-and-forth oscillating motion to tighten the fed weft yarn, forming a stable fabric structure. Both need to work in close coordination during the weaving process to ensure the quality and continuity of the ribbon.

[0003] However, existing shuttleless ribbon looms typically employ a synchronous drive mechanism in their structural design, meaning the weft hook and the steel buckle move at the same time. While this synchronous action meets the process requirements for weaving narrow-width ribbons, it becomes problematic when weaving wide-width ribbons. Due to the larger swing amplitude of the weft hook and the longer stroke of the steel buckle, their movement trajectories are prone to spatial interference. This can cause the weft hook to collide or rub against the steel buckle during its swing, affecting the ribbon forming quality and even causing equipment malfunction.

[0004] Furthermore, traditional structures often employ single linkages or synchronous gear drives in their transmission mechanisms, lacking the flexibility to adjust the timing of motion and making it difficult to adapt to varying webbing widths, densities, and speeds. Therefore, achieving asynchronous motion control between the weft hook and the steel buckle has become a key issue in improving the adaptability and webbing quality of shuttleless ribbon looms. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a weft hook and steel buckle stroke linkage transmission mechanism for a shuttleless ribbon loom.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: the weft hook and steel buckle stroke linkage transmission mechanism of this shuttleless ribbon loom includes a mounting plate and its connecting parts distributed on the left and right. A first rotating shaft and a second rotating shaft are provided between the mounting plates. The first rotating shaft drives the steel buckle to swing back and forth, and the second rotating shaft drives the weft hook to swing left and right. The characteristic is that: the mounting plate is provided with a first linkage group and a second linkage group that respectively drive the first rotating shaft and the second rotating shaft. The first linkage group and the second linkage group are both driven by an eccentric power source. The first linkage group and the second linkage group have different initial phases. The movement of the first linkage group driving the first rotating shaft is delayed or advanced by the movement of the second linkage group driving the second rotating shaft, and the movement of the steel buckle is delayed or advanced by the movement of the weft hook.

[0007] The first linkage group includes a linkage a and a linkage b that are hinged together. The other end of linkage a is hinged to a first swing arm provided on a first rotating shaft, and the other end of linkage b is hinged to a first linkage seat provided on a mounting plate. The output shaft of the eccentric power source is hinged to a linkage c, and the other end of linkage c is hinged to the hinge point of linkage a and linkage b.

[0008] The second linkage group includes a d-link and an e-link that are hinged together. The other end of the d-link is hinged to a second swing arm mounted on a second rotating shaft, and the other end of the e-link is hinged to a second linkage seat mounted on a mounting plate. The output shaft of the eccentric power source is hinged to an f-link, and the other end of the f-link is hinged to the hinge point of the d-link and the e-link.

[0009] The eccentric power source includes a power shaft, which is rotatably mounted between mounting plates. One end of the power shaft is connected to a motor drive, and the other end of the power shaft is provided with a drive block, on which an output shaft is eccentrically mounted.

[0010] The steel buckle is fixedly mounted on the first rotating shaft.

[0011] The weft hook is located at one end of the third swing arm, and the other end of the third swing arm is located at the upper end of the vertical shaft. The vertical shaft is rotatably mounted on the bearing seat, which is mounted on the connector. The lower end of the vertical shaft is connected to the fourth swing arm. The second rotating shaft is provided with the fifth swing arm. The other end of the fourth swing arm is connected to the other end of the fifth swing arm through a spatial universal joint.

[0012] The beneficial effect of this invention is that the improved weft hook and steel buckle linkage transmission mechanism of the shuttleless ribbon loom, by setting a first linkage group and a second linkage group, both driven by the same eccentric power source, but with different initial phases of the two linkage groups, achieves asynchronous driving of the first and second rotating shafts. This structural design allows the actions of the steel buckle and weft hook to have a certain timing difference, avoiding spatial interference between the two during the movement process, and is particularly suitable for the efficient weaving of wide-width ribbons. Attached Figure Description

[0013] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a side view of the structure of this utility model.

[0016] Figure 3 This is a front view of the structure of this utility model.

[0017] Figure 4 This is a rear view of the structure of this utility model. Detailed Implementation

[0018] The accompanying drawings illustrate the structure of this utility model, and further details will be described below with reference to the drawings. In this embodiment, see the attached drawings. Figure 1-4 The weft hook and steel buckle linkage transmission mechanism of the shuttleless ribbon loom includes left and right distributed mounting plates 1 and their connecting parts. The connecting parts are preferably connecting plates or connecting shafts for fixing the left and right mounting plates 1. A first rotating shaft 3 and a second rotating shaft 4 are provided between the mounting plates 1. The first rotating shaft 3 drives the steel buckle 5 to swing back and forth, and the second rotating shaft 4 drives the weft hook 6 to swing left and right. The mounting plates 1 are provided with a first link group 7 and a second link group 8 that respectively drive the first rotating shaft 3 and the second rotating shaft 4. Both the first link group 7 and the second link group 8 are driven by an eccentric power source 9. The first link group 7 and the second link group 8 have different initial phases. The initial phase refers to the bending angle when the link group is arranged. The corresponding action of the first link group 7 driving the first rotating shaft 3 is delayed or advanced by the action of the second link group 8 driving the second rotating shaft 4, and the action of the steel buckle 5 is delayed or advanced by the action of the weft hook 6.

[0019] The working principle of this utility model is as follows: the eccentric power source 9 drives the first linkage group 7, which in turn drives the first rotating shaft 3 to rotate back and forth. The first rotating shaft 3 drives the steel buckle 5 to swing back and forth. At the same time, the eccentric power source 9 drives the second linkage group 8, which in turn drives the second rotating shaft 4 to rotate back and forth. The second rotating shaft 4 drives the weft hook 6 to swing left and right. For example, when the first linkage group 7 is in a non-collinear state and the second linkage group 8 is in a collinear state, the action of the first linkage group 7 driving the first rotating shaft 3 is ahead of the action of the second linkage group 8 driving the second rotating shaft 4. During the backward movement of the steel buckle 5, the weft hook 6 swings to the right with a delay. Conversely, when the second linkage group 8 is in a non-collinear state and the first linkage group 7 is in a collinear state, the action of the first linkage group 7 driving the first rotating shaft 3 is behind the action of the second linkage group 8 driving the second rotating shaft 4. During the leftward swing of the weft hook 6, the steel buckle 5 moves forward with a delay. That is, the first link group 7 and the second link group 8 adopt a mechanical asymmetric drive design. The phase difference is used to break the synchronicity of the two link groups and make their drive speeds inconsistent. This enables the asynchronous delayed action of the weft hook 6 and the steel buckle 5, eliminates the interference between their strokes, and meets the requirements of wide-width webbing weaving.

[0020] As a further improved embodiment, the first linkage group 7 includes a connecting rod 71 (a) and a connecting rod 72 (b) hinged together. The other end of connecting rod 71 is hinged to a first swing arm 31 mounted on the first rotating shaft 3, and the other end of connecting rod 72 is hinged to a first linkage seat 11 mounted on the mounting plate 1. The output shaft of the eccentric power source 9 is hinged to a connecting rod 91 (c), the other end of which is hinged to the hinge point between connecting rod 71 and connecting rod 72. During operation, the eccentric power source 9 drives the first linkage group 7 via connecting rod 91, which in turn drives the first swing arm 31, thereby causing the first rotating shaft 3 to rotate back and forth.

[0021] As a further improved embodiment, the second linkage group 8 includes a d-link 81 and an e-link 82 hinged together. The other end of the d-link 81 is hinged to a second swing arm 41 mounted on the second rotating shaft 4, and the other end of the e-link 82 is hinged to a second linkage seat 12 mounted on the mounting plate 1. The output shaft of the eccentric power source 9 is hinged to an f-link 92, the other end of which is hinged to the hinge point between the d-link 81 and the e-link 82. During operation, the eccentric power source 9 drives the second linkage group 8 via the f-link 92, which in turn drives the second swing arm 41, thereby causing the second rotating shaft 4 to rotate back and forth.

[0022] As a further improved specific implementation, the eccentric power source 9 includes a power shaft, which is rotatably disposed between the mounting plates 1. One end of the power shaft is connected to a motor drive, specifically driven by a synchronous pulley and synchronous belt. The other end of the power shaft is provided with a drive block, and an output shaft is eccentrically provided on the drive block.

[0023] As a further improved specific implementation, the steel buckle 5 is fixedly mounted on the first rotating shaft 3, and the steel buckle 5 is linked with the first rotating shaft 3 to realize back and forth swinging.

[0024] As a further improved embodiment, the weft hook 6 is disposed at one end of the third swing arm 21, and the other end of the third swing arm 21 is disposed at the upper end of the vertical shaft 22. The vertical shaft 22 is rotatably disposed on the bearing seat 23, which is disposed on the connector. The lower end of the vertical shaft 22 is connected to the fourth swing arm 24, and the second rotating shaft 4 is provided with a fifth swing arm 25. The other end of the fourth swing arm 24 and the other end of the fifth swing arm 25 are connected through a spatial universal joint 26. When the second rotating shaft 4 rotates back and forth, the fifth swing arm 25 is linked with it, and the fifth swing arm 25 drives the fourth swing arm 24 to swing back and forth through the spatial universal joint 26, thereby driving the vertical shaft 22 to rotate back and forth and the third swing arm 21 to swing left and right, ultimately realizing the left and right swing of the weft hook 6.

[0025] In summary, the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A weft hook and steel buckle stroke linkage transmission mechanism for a shuttleless ribbon loom, comprising mounting plates and connecting parts distributed to the left and right, wherein a first rotating shaft and a second rotating shaft are provided between the mounting plates, the first rotating shaft drives the steel buckle to swing back and forth, and the second rotating shaft drives the weft hook to swing left and right, characterized in that: The mounting plate is provided with a first linkage group and a second linkage group that respectively drive the first rotating shaft and the second rotating shaft. Both the first linkage group and the second linkage group are driven by an eccentric power source. The first linkage group and the second linkage group have different initial phases. The action of the first linkage group driving the first rotating shaft is delayed or advanced by the action of the second linkage group driving the second rotating shaft. The action of the steel buckle is delayed or advanced by the action of the weft hook.

2. The weft hook and steel buckle stroke linkage transmission mechanism of the shuttleless ribbon loom as described in claim 1, characterized in that: The first linkage group includes a linkage a and a linkage b that are hinged together. The other end of linkage a is hinged to a first swing arm provided on a first rotating shaft, and the other end of linkage b is hinged to a first linkage seat provided on a mounting plate. The output shaft of the eccentric power source is hinged to a linkage c, and the other end of linkage c is hinged to the hinge point of linkage a and linkage b.

3. The weft hook and steel buckle stroke linkage transmission mechanism of the shuttleless ribbon loom as described in claim 1, characterized in that: The second linkage group includes a d-link and an e-link that are hinged together. The other end of the d-link is hinged to a second swing arm mounted on a second rotating shaft, and the other end of the e-link is hinged to a second linkage seat mounted on a mounting plate. The output shaft of the eccentric power source is hinged to an f-link, and the other end of the f-link is hinged to the hinge point of the d-link and the e-link.

4. The weft hook and steel buckle stroke linkage transmission mechanism of the shuttleless ribbon loom as described in any one of claims 1-3, characterized in that: The eccentric power source includes a power shaft, which is rotatably mounted between mounting plates. One end of the power shaft is connected to a motor drive, and the other end of the power shaft is provided with a drive block, on which an output shaft is eccentrically mounted.

5. The weft hook and steel buckle stroke linkage transmission mechanism of the shuttleless ribbon loom as described in claim 1, characterized in that: The steel buckle is fixedly mounted on the first rotating shaft.

6. The weft hook and steel buckle stroke linkage transmission mechanism of the shuttleless ribbon loom as described in claim 1, characterized in that: The weft hook is located at one end of the third swing arm, and the other end of the third swing arm is located at the upper end of the vertical shaft. The vertical shaft is rotatably mounted on the bearing seat, which is mounted on the connector. The lower end of the vertical shaft is connected to the fourth swing arm. The second rotating shaft is provided with the fifth swing arm. The other end of the fourth swing arm is connected to the other end of the fifth swing arm through a spatial universal joint.

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