Fastening device for the swing arm and swing shaft on a rapier loom

Abstract

This invention discloses a fastening device for a swing arm and a swing shaft on a rapier loom. The device includes a swing shaft with a swing arm mounted on it. The swing arm comprises a main body and a base. A triangular recess is provided on the inner wall of the main body. Two triangular blocks, each pointing to one side, are inserted between the swing shaft and the recess. Rings are provided on both sides of the swing arm on the swing shaft, and rubber rods are mounted on the rings. A ball is attached to the end of the rubber rod, and the ball intermittently impacts the inner side of the triangular blocks. This invention has the following advantages and effects: The fastening device for the swing arm and swing shaft on a rapier loom allows the ball connected to the rubber rod to intermittently impact the triangular blocks during the swing of the swing shaft, causing the triangular blocks to penetrate between the main body and the swing shaft, thus achieving a fastening effect and avoiding the problem of insufficient gripping of the swing arm on the swing shaft caused by loosening of the main body and the base.

Description

Technical Field

[0001] This invention relates to the field of rapier loom technology, and particularly to a fastening device for the swing arm and swing shaft on a rapier loom. Background Technology

[0002] Rapier looms typically consist of frames on both sides, which are equipped with five major systems: take-up, shedding, beat-up, warp feed, and weft insertion.

[0003] In this system, the beat-up system uses a reed to push the weft yarn, which is introduced into the shed, towards the weft end, where it interweaves with the warp yarn to form a fabric with a certain weft density. On a rapier loom, the beat-up system is typically driven by a main drive motor that rotates a swing shaft periodically in both directions, with a swing rod fixedly mounted on the swing shaft.

[0004] However, the lower end of the swing arm typically consists of an upper main body and a lower base that are held together on the swing axis and secured with multiple bolts. After prolonged swinging, these bolts may loosen, causing the main body and base to become loose and affecting overall stability. Summary of the Invention

[0005] The purpose of this invention is to provide a fastening device for the swing arm and swing shaft on a rapier loom.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a fastening device for a swing rod and a swing shaft on a rapier loom, comprising a swing shaft, wherein a swing rod is provided on the swing shaft, characterized in that: the swing rod comprises a main body and a base support, wherein a triangular concave portion is provided on the inner wall of the main body; two triangular blocks respectively facing to the sides are inserted between the swing shaft and the concave portion, and a ring is provided on both sides of the swing rod on the swing shaft, wherein a rubber rod is provided on the ring, and a ball is provided at the end of the rubber rod, wherein the ball intermittently impacts the inner side of the triangular block.

[0007] A further configuration is provided: the triangular block has an arc shape that fits the pendulum shaft on the side facing the pendulum shaft.

[0008] A further configuration is provided: a compression spring is connected between the triangular blocks.

[0009] A further configuration is provided: one of the triangular blocks is provided with an arc-shaped rod, the other triangular block is provided with an arc-shaped hole, the arc-shaped rod passes through the arc-shaped hole, and a compression spring is provided on the arc-shaped rod.

[0010] Further configuration: the arc-shaped rod and the compression spring are both in two sets and are arranged on both sides of the triangular block.

[0011] A further configuration is provided: a connecting rod is provided between the spheres, and the connecting rod passes through the concave portion.

[0012] The ratio of the horizontal length to the vertical length of the triangular block is further specified as being greater than 2:1.

[0013] In summary, the present invention has the following beneficial effects: through the fastening device for the swing arm and swing shaft on the rapier loom of this application, the ball connected to the rubber rod can be driven to intermittently strike the triangular block during the swing of the swing shaft, so that the triangular block can penetrate between the main body and the swing shaft, thereby achieving a fastening effect and avoiding the problem of the swing arm not being able to hold the swing shaft properly due to the loosening of the main body and the base. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the fastening device between the pendulum rod and the pendulum axis;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0016] In the diagram: 1. Swing shaft; 2. Swing rod; 3. Main body; 4. Base; 5. Concave part; 6. Triangular block; 7. Ring hoop; 8. Rubber rod; 9. Sphere; 10. Arc; 11. Compression spring; 12. Arc rod; 13. Arc hole; 14. Connecting rod. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings.

[0018] The fastening device for the swing arm 2 and the swing shaft 1 on the rapier loom includes frames on both sides, with a swing shaft 1 driven by the main drive motor positioned between the frames. The swing arm 2 is mounted on the swing shaft 1, and the swing arm 2 includes a main body 3 and a base 4. The main body and the base 4 are engaged with the swing shaft 1 by multiple screws, causing the swing arm 2 to oscillate back and forth when the swing shaft 1 rotates in both directions.

[0019] A triangular recess 5 is provided on the inner wall of the main body 3. The distance of the recess 5 in the horizontal direction is greater than the distance in the vertical direction, and the ratio is greater than 4:1. The recess 5 is preferably provided on the inner wall directly opposite the position of the base 4.

[0020] Within the space between the swing shaft 1 and the recessed portion 5, two triangular blocks 6 are inserted into each side. The horizontal length of the triangular block 6 is greater than its vertical distance, with a ratio greater than 2:1. This ratio makes it easier for the triangular block 6 to be inserted between the inner wall of the main body 3 and the swing shaft 1, and also makes the insertion process more stable. The side of the triangular block 6 facing the swing shaft 1 has an arc shape 10 that conforms to the swing shaft 1, which makes the movement of the triangular block 6 more stable.

[0021] Both sides of the pendulum shaft 1 are equipped with rings 7, and rubber rods 8 are mounted on the rings 7. A ball 9 is attached to the end of each rubber rod 8. The ball 9 intermittently impacts the triangular block 6, thus utilizing the swing of the pendulum shaft 1 to tighten the grip of the pendulum rod 2 on the pendulum shaft 1 after impacting the triangular block 6, ensuring stability. The rubber rods 8 are made of the same material as the soft handle of a shock absorber, ensuring sufficient flexibility while supporting the weight of the ball 9, allowing it to stably impact the triangular block 6. The lower sides of the triangular block 6 have grooves that provide space for the rings 7, preventing interference and ensuring the ball 9 remains between the two triangular blocks 6.

[0022] To ensure the stability of the triangular blocks 6, an arc-shaped rod 10 is installed on one of the triangular blocks 6, the circle of which matches the circle of the pendulum shaft 1. An arc-shaped hole 10 is provided on the other triangular block 6, and the arc-shaped rod 10 passes through the hole. A compression spring 11 is fitted on the arc-shaped rod 10, with its two ends abutting against the two triangular blocks 6 respectively, ensuring the stability of the triangular blocks 6.

[0023] Among them, the arc-shaped rod 10 and the compression spring 11 are both in two sets and are set on both sides of the triangular block 6. The two sets can make the fastening effect more balanced and avoid the problem of one side being tight while the other side is loose.

[0024] A connecting rod 14 is provided between the spheres 9, and the connecting rod 14 passes through the concave part 5. This structure can synchronize the movement of the spheres 9 on both sides, thereby ensuring the stable and secure fastening effect of the triangular block 6 on the pendulum 2 and the pendulum axis 1.

[0025] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A fastening device for a swing arm and a swing shaft on a rapier loom, comprising a swing shaft on which a swing arm is mounted, characterized in that: The swing arm includes a main body and a base. The inner wall of the main body has a triangular concave portion. Two triangular blocks are inserted between the swing shaft and the concave portion, respectively, and two rings are provided on both sides of the swing arm. Rubber rods are provided on the rings, and balls are provided at the ends of the rubber rods. The balls intermittently strike the inner sides of the triangular blocks.

2. The fastening device for the swing arm and swing shaft on a rapier loom according to claim 1, characterized in that: The triangular block has an arc shape on the side facing the pendulum axis that fits the pendulum axis.

3. The fastening device for the swing arm and swing shaft on a rapier loom according to claim 1, characterized in that: A compression spring connects the triangular blocks.

4. The fastening device for the swing arm and swing shaft on a rapier loom according to claim 3, characterized in that: One of the triangular blocks is provided with an arc-shaped rod, and the other triangular block is provided with an arc-shaped hole. The arc-shaped rod passes through the arc-shaped hole, and a compression spring is provided on the arc-shaped rod.

5. The fastening device for the swing arm and swing shaft on a rapier loom according to claim 4, characterized in that: The arc-shaped rod and the compression spring are both in two sets and are arranged on both sides of the triangular block.

6. The fastening device for the swing arm and swing shaft on a rapier loom according to claim 1, characterized in that: A connecting rod is provided between the spheres, and the connecting rod passes through the concave part.

7. The fastening device for the swing arm and swing shaft on a rapier loom according to claim 1, characterized in that: The ratio of the horizontal length to the vertical length of the triangular block is greater than 2:1.

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