Tension adjusting device of air jet loom

Abstract

The utility model discloses an air jet loom tension adjusting device which comprises a base plate, a yarn inlet plate and a yarn outlet plate are arranged on the base plate, a multi-blade cam rotationally connected to the base plate is arranged between the yarn inlet plate and the yarn outlet plate, and the number of blades of the multi-blade cam is N. Adjusting plates which have the same number of blades as the multi-blade cam and are arranged in an annular array at equal interval angles around the axis are distributed on the periphery of the multi-blade cam, the adjusting plates move close to or away from the multi-blade cam, the adjusting plates are in a fan shape, and the bottoms of the adjusting plates are in a cambered surface shape and abut against the wheel face of the multi-blade cam; a reset assembly enabling the adjusting plate to continuously abut against the multi-blade cam is arranged between each adjusting plate and the base plate. And the multi-blade cam is in transmission connection with an adjusting mechanism for controlling the multi-blade cam to rotate. According to the device, the circumferential position of the multi-blade cam is manually adjusted, the distance between each adjusting plate and the multi-blade cam can be synchronously adjusted, so that the effect of changing the circumference of the winding contour is achieved, the function of adjusting the tension of the wound yarn is achieved, the overall function is complete, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, and more specifically, it relates to a tension adjustment device for an air-jet loom. Background Technology

[0002] The weft yarn fed on an air-jet loom needs to be conveyed at a set tension; yarn with too little tension or too much tension will affect the weaving of the fabric. Therefore, this invention proposes a tension adjustment device for an air-jet loom. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a tension adjustment device for an air-jet loom.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: The tension adjustment device for an air-jet loom involved in this utility model includes a base plate, on which a yarn inlet plate and a yarn outlet plate are provided. The yarn inlet plate has a yarn inlet hole, and the yarn outlet plate has a yarn outlet hole. A multi-leaf cam is rotatably connected to the base plate between the yarn inlet plate and the yarn outlet plate. The number of leaves of the multi-leaf cam is N. Adjustment plates with the same number of leaves as the multi-leaf cam are arranged in a ring array at equal intervals around the axis. The adjustment plates move closer to or away from the multi-leaf cam. The adjustment plates are fan-shaped, and the bottom of the adjustment plates is arc-shaped and abuts against the wheel surface of the multi-leaf cam. N≥6.

[0005] Each of the aforementioned adjustment plates is provided with a reset assembly between itself and the base plate, which enables the adjustment plate to continuously press against the multi-leaf cam.

[0006] The multi-leaf cam is connected to an adjustment mechanism that controls its rotation.

[0007] The present invention is further configured such that: the adjustment mechanism includes a worm wheel arranged coaxially with the multi-leaf cam, a worm gear rotatably connected to the base plate meshing on the worm wheel, a driven bevel gear being provided at one end of the worm gear, a driving bevel gear rotatably connected to the base plate meshing on the driven bevel gear, and an adjustment handwheel for controlling rotation being arranged coaxially on the driving bevel gear.

[0008] The present invention is further configured such that: the reset assembly includes a limiting hole formed on the substrate and extending radially along the multi-leaf cam; a movable pin is slidably connected in the limiting hole; the movable pin is connected to the adjusting plate; a fixing pin is fixedly connected to the substrate between the movable pin and the axis of the multi-leaf cam; and a tension spring is provided between the fixing pin and the movable pin, with one end connected to the fixing pin and the other end connected to the movable pin.

[0009] The present invention is further configured such that: a linear guide rail extending radially along the multi-leaf cam is provided between each of the adjustment plates and the base plate, a linear slider is slidably connected on the linear guide rail, and the adjustment plate is fixedly connected to the linear slider.

[0010] In summary, the present invention has the following beneficial effects: The tension adjustment device for the air-jet loom involved in the present invention can simultaneously adjust the distance between each adjustment plate relative to the multi-leaf cam by manually adjusting the circumferential position of the multi-leaf cam, thereby achieving the effect of changing the circumference of the winding outline, thus realizing the tension adjustment function of the winding yarn. The overall function is perfect and the practicality is strong. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the usage state of this utility model. Detailed Implementation

[0014] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0015] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0016] Example 1

[0017] See Figures 1 to 3 As shown, the tension adjustment device for an air-jet loom involved in this embodiment includes a base plate 1, on which a yarn inlet plate 2 and a yarn outlet plate 3 are provided. The yarn inlet plate 2 has a yarn inlet hole (not shown), and the yarn outlet plate 3 has a yarn outlet hole (not shown). A multi-leaf cam 4 is rotatably connected to the base plate between the yarn inlet plate 2 and the yarn outlet plate 3. The number of leaves of the multi-leaf cam 4 is N, where N≥6. Adjustment plates 5 are arranged in a ring array with the same number of leaves as the multi-leaf cam 4 and at equal intervals around the axis. The adjustment plates 5 move closer to or away from the multi-leaf cam 4. The adjustment plates 5 are fan-shaped, and the bottom of the adjustment plates 5 is arc-shaped and abuts against the wheel surface of the multi-leaf cam 4.

[0018] Each of the aforementioned adjustment plates 5 and the base plate 1 is provided with a reset assembly that allows the adjustment plate to continuously press against the multi-leaf cam.

[0019] The multi-leaf cam 4 is connected to an adjustment mechanism that controls its rotation.

[0020] Furthermore, the adjustment mechanism includes a worm wheel 6 arranged coaxially with the multi-leaf cam 4, a worm 7 rotatably connected to the base plate meshing on the worm wheel 6, a driven bevel gear 8 at one end of the worm 7, a driving bevel gear 9 rotatably connected to the base plate meshing on the driven bevel gear 8, and an adjustment handwheel (not shown) coaxially arranged on the driving bevel gear 9 for controlling rotation.

[0021] Furthermore, the reset assembly includes a limiting hole 10 formed on the base plate 1 and extending radially along the multi-leaf cam. A movable pin 11 is slidably connected in the limiting hole 10. The movable pin 11 is connected to the adjusting plate 5. A fixing pin 12 is fixedly connected to the base plate between the movable pin 11 and the axis of the multi-leaf cam 4. A tension spring 13 with one end connected to the fixing pin and the other end connected to the movable pin is provided between the fixing pin 12 and the movable pin 11.

[0022] Furthermore, each of the adjusting plates 5 is provided with a linear guide rail 14 extending radially along the multi-leaf cam between it and the base plate 1. A linear slider (not shown) is slidably connected to the linear guide rail 14, and the adjusting plate 5 is fixedly connected to the linear slider.

[0023] In this embodiment, the yarn first passes through the inlet hole, then winds around all the adjusting plates 5, and finally exits through the outlet hole. When it is necessary to increase the tension during yarn feeding, the adjusting handwheel can be turned clockwise, driving the worm gear and multi-leaf cam 4 to rotate, pushing each adjusting plate 5 outwards. The overall contour formed by all the adjusting plates 5 increases, thus increasing the yarn feeding tension. When it is necessary to decrease the tension during yarn feeding, the adjusting handwheel can be turned counterclockwise, driving the worm gear and multi-leaf cam 4 to rotate. The adjusting plates 5 retract inwards, reducing the overall contour formed by all the adjusting plates 5, thus decreasing the yarn feeding tension.

[0024] The reset component is configured to automatically reset the adjustment plate 5.

[0025] The linear guide rail 14, in conjunction with the linear slider, serves as a sliding guide for the adjustment plate 5 when it moves relative to the base plate 1.

[0026] The tension adjustment device for an air-jet loom involved in this utility model can simultaneously adjust the distance between each adjustment plate relative to the multi-leaf cam by manually adjusting the circumferential position of the multi-leaf cam, thereby changing the circumference of the winding outline and realizing the tension adjustment function of the winding yarn. The overall function is complete and highly practical.

[0027] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.

[0028] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An air-jet loom tension adjusting device, comprising a base plate, a yarn inlet plate and a yarn outlet plate are arranged on the base plate, a yarn inlet hole is arranged on the yarn inlet plate, and a yarn outlet hole is arranged on the yarn outlet plate, characterized in that: The yarn feeding plate and the yarn discharging plate are provided with a multi-leaf cam which is rotatably connected to the base plate, the number of the leaves of the multi-leaf cam is N, the outer periphery of the multi-leaf cam is provided with adjusting plates which are equal to the number of the leaves and are arranged in an equiangular annular array around the axis, the adjusting plates are moved close to or away from the multi-leaf cam, the adjusting plates are in the shape of a sector, the bottom of the adjusting plate is in the shape of an arc surface and abuts against the wheel surface of the multi-leaf cam, and N≥6; Each of the adjusting plates and the base plate is respectively provided with a reset assembly which enables the adjusting plate to continuously abut against the multi-leaf cam; The multi-leaf cam is drivingly connected with an adjusting mechanism which is controlled to rotate.

2. The air-jet loom tension regulating device according to claim 1, characterized in that: The adjusting mechanism comprises a worm gear which is coaxially arranged with the multi-leaf cam, the worm gear is engaged with a worm which is rotatably connected to the base plate, one end of the worm is provided with a driven bevel gear, the driven bevel gear is engaged with a driving bevel gear which is rotatably connected to the base plate, and the driving bevel gear is coaxially provided with an adjusting hand wheel which is controlled to rotate.

3. The air-jet loom tension regulating device according to claim 1 or 2, characterized in that: The reset assembly comprises a limiting hole which is formed in the base plate and extends along the radial direction of the multi-leaf cam, a movable pin is slidingly connected in the limiting hole, the movable pin is connected to the adjusting plate, a fixed pin is fixedly connected between the movable pin and the axis of the multi-leaf cam, and a tension spring is connected between the fixed pin and the movable pin.

4. The air-jet loom tension regulating device according to claim 1, characterized in that: Each of the adjusting plates and the base plate is provided with a linear guide rail which extends along the radial direction of the multi-leaf cam, a linear sliding block is slidingly connected to the linear guide rail, and the adjusting plate is fixedly connected to the linear sliding block.

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