Yarn tensioning device for weaving machine

Abstract

The utility model discloses a yarn tensioning device for a weaving machine, and belongs to the technical field of yarn tensioning devices. Comprising an upper pressing plate and a lower pressing plate, the upper pressing plate is located above the lower pressing plate, two sets of gasket blocks are clamped between the upper pressing plate and the lower pressing plate, each set of gasket blocks at least comprises a block, and a plurality of sets of friction blocks are further arranged between the lower surface of the upper pressing plate and the upper surface of the lower pressing plate. Threaded holes are formed in the surfaces of the upper pressing plate and the lower pressing plate in a penetrating mode, an adjusting rod sequentially penetrates through a gasket and a spring and penetrates through the threaded holes in the surfaces of the upper pressing plate and the lower pressing plate to extend to the position below the lower pressing plate, and the lower end of the lower pressing plate is connected with a nut. According to the tensioning device, the distance between the upper pressing plate and the lower pressing plate can be adjusted by increasing or decreasing the number of the gasket blocks, and therefore yarn tension between the friction blocks can be adjusted, and adjustability is good; the friction blocks are composed of the long friction blocks and the short friction blocks, and when yarn penetrates through the friction block sets with different lengths, yarn tension adjustment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of yarn tensioning devices, in particular to a yarn tensioning device for a loom. Background Art

[0002] The textile machine weaves the yarn. During the processing, the yarn must maintain a certain tension to have a good processing shape, otherwise the yarn is prone to knotting. As mechanized processing is becoming more and more common, the role of the yarn tensioning device is particularly important. In the prior art, the tension adjustability of the yarn tensioning device is not good, and it is not convenient to adjust the tension of the yarn, which can easily cause the yarn to loosen or break during the transmission process, affecting the normal use of the yarn. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a yarn tensioning device for a loom.

[0004] The utility model is realized by the following technical solutions:

[0005] A yarn tensioning device for a loom comprises an upper pressure plate and a lower pressure plate, wherein the upper pressure plate is located above the lower pressure plate, and two groups of gasket blocks are sandwiched between the upper pressure plate and the lower pressure plate, and each group of gasket blocks includes at least blocks, and several groups of friction blocks are also arranged between the lower surface of the upper pressure plate and the upper surface of the lower pressure plate, and threaded holes are opened through the surfaces of the upper pressure plate and the lower pressure plate, and an adjusting rod passes through the gasket and the spring in turn and extends from the threaded holes on the surfaces of the upper pressure plate and the lower pressure plate to the bottom of the lower pressure plate, and the lower end of the lower pressure plate is connected to a nut.

[0006] Preferably, the friction block is composed of short friction blocks and long friction blocks at intervals, and the short friction blocks and the long friction blocks are fixed on the lower surface of the upper pressing plate and the upper surface of the lower pressing plate along the width direction of the upper pressing plate and the lower pressing plate.

[0007] Preferably, the surfaces of the upper pressing plate and the lower pressing plate are provided with grooves for clamping the gasket blocks.

[0008] Preferably, each group of the gasket blocks comprises four gaskets.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The tensioning device in the utility model can adjust the distance between the upper pressure plate and the lower pressure plate by increasing or decreasing the number of gasket blocks, thereby realizing the adjustment of the yarn tension between the friction blocks, and has good adjustability; the friction blocks are composed of long friction blocks and short friction blocks, and when the yarn passes through friction block groups of different lengths, the tension degree of the yarn is different, thereby realizing the adjustment of the yarn tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is a structural schematic diagram of the upper pressing plate and the lower pressing plate of the utility model.

[0013] In the figure: 1. upper pressure plate; 2. lower pressure plate; 3. gasket block; 4. friction block; 4-1. short friction block; 4-2. long friction block; 5. threaded hole; 6. adjusting rod; 7. gasket; 8. spring; 9. nut. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings:

[0015] A yarn tensioning device for a loom comprises an upper pressing plate 1 and a lower pressing plate 2, wherein the upper pressing plate 1 is located above the lower pressing plate 2, and two groups of gasket blocks 3 are sandwiched between the upper pressing plate 1 and the lower pressing plate 2, and each group of the gasket blocks 3 includes at least two blocks. A plurality of groups of friction blocks 4 are also arranged between the lower surface of the upper pressing plate 1 and the upper surface of the lower pressing plate 2, and threaded holes 5 are formed through the surfaces of the upper pressing plate 1 and the lower pressing plate 2, and an adjusting rod 6 passes through a gasket 7 and a spring 8 in sequence and extends from the threaded holes 5 on the surfaces of the upper pressing plate 1 and the lower pressing plate 2 to the bottom of the lower pressing plate 2, and the lower end of the lower pressing plate 2 is connected to a nut 9.

[0016] Preferably, the friction block 4 is composed of a short friction block 4-1 and a long friction block 4-2, and the short friction block 4-1 and the long friction block 4-2 are fixed on the lower surface of the upper pressing plate 1 and the upper surface of the lower pressing plate 2 along the width direction of the upper pressing plate 1 and the lower pressing plate 2.

[0017] Preferably, the surfaces of the upper pressing plate 1 and the lower pressing plate 2 are provided with grooves for clamping the gasket block 3 .

[0018] Preferably, each group of the gasket blocks 3 includes four gaskets.

[0019] Example

[0020] As shown in the attached figure of the instruction manual Figure 1 As shown, a yarn tensioning device for a loom includes an upper pressing plate 1 and a lower pressing plate 2, the upper pressing plate 1 is located above the lower pressing plate 2, two groups of gasket blocks 3 are sandwiched between the upper pressing plate 1 and the lower pressing plate 2, each group of gasket blocks 3 includes at least 2 blocks, and a plurality of groups of friction blocks 4 are also arranged between the lower surface of the upper pressing plate 1 and the upper surface of the lower pressing plate 2, threaded holes 5 are opened through the surfaces of the upper pressing plate 1 and the lower pressing plate 2, an adjusting rod 6 passes through the gasket 7 and the spring 8 in sequence and passes through the threaded holes 5 on the surfaces of the upper pressing plate 1 and the lower pressing plate 2 to extend to the bottom of the lower pressing plate 2, and the lower end of the lower pressing plate 2 is connected to the nut 9.

[0021] As shown in the attached figure of the instruction manual Figure 2As shown, preferably, the friction block 4 is composed of a short friction block 4-1 and a long friction block 4-2, and the short friction block 4-1 and the long friction block 4-2 are fixed on the lower surface of the upper pressing plate 1 and the upper surface of the lower pressing plate 2 along the width direction of the upper pressing plate 1 and the lower pressing plate 2.

[0022] Preferably, the surfaces of the upper pressing plate 1 and the lower pressing plate 2 are provided with grooves for clamping the gasket block 3 .

[0023] Preferably, each group of spacer blocks 3 includes four spacers.

[0024] In this embodiment, the friction block is made of sponge, which is fixed between the upper and lower pressure plates. The upper pressure plate 1 and the lower pressure plate 2 are connected by an adjusting rod 6 passing through the threaded holes of the upper pressure plate 1 and the lower pressure plate 2. The yarn passes through the friction block group to adjust the tension. The distance between the upper and lower friction blocks is adjusted by increasing or decreasing the number of gasket blocks. Increasing the number of gasket blocks increases the distance between the upper and lower pressure plates, and the distance between the upper and lower friction blocks increases. When the yarn passes between the friction blocks, the tension is small. Conversely, reducing the number of gasket blocks reduces the distance between the upper and lower friction blocks, and the yarn is subject to large tension when passing between the friction blocks, thereby realizing the adjustability of the yarn tension.

[0025] In addition, when the friction blocks are designed, their lengths are different. When the yarn passes through the friction blocks of different lengths, the yarn tension is adjusted. When the yarn passes through the long friction block 4-2, the friction force is large and the yarn's own tension is large. When the yarn passes through the short friction block 4-1, the friction force is small and the yarn's own tension is small.

[0026] The tensioning device in the utility model can adjust the distance between the upper pressure plate and the lower pressure plate by increasing or decreasing the number of gasket blocks, thereby realizing the adjustment of the yarn tension between the friction blocks, and has good adjustability; the friction blocks are composed of long friction blocks and short friction blocks, and when the yarn passes through friction block groups of different lengths, the yarn tension is adjusted.

[0027] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0029] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0030] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. All equivalent changes and modifications to the shapes, structures, features and spirits described in the claims of the present invention should be included in the claims of the present invention.

Claims

1. A yarn tensioning device for a loom, characterized in that: It comprises an upper pressing plate (1) and a lower pressing plate (2), wherein the upper pressing plate (1) is located above the lower pressing plate (2), two groups of gasket blocks (3) are sandwiched between the upper pressing plate (1) and the lower pressing plate (2), and each group of the gasket blocks (3) comprises at least two blocks. A plurality of groups of friction blocks (4) are also arranged between the lower surface of the upper pressing plate (1) and the upper surface of the lower pressing plate (2), threaded holes (5) are provided through the surfaces of the upper pressing plate (1) and the lower pressing plate (2), an adjusting rod (6) passes through the gasket (7) and the spring (8) in sequence and passes through the threaded holes (5) on the surfaces of the upper pressing plate (1) and the lower pressing plate (2) to extend to the bottom of the lower pressing plate (2), and the lower end of the lower pressing plate (2) is connected to a nut (9).

2. A yarn tensioning device for a loom according to claim 1, characterized in that: The friction block (4) is composed of a short friction block (4-1) and a long friction block (4-2) at intervals, and the short friction block (4-1) and the long friction block (4-2) are fixed on the lower surface of the upper pressing plate (1) and the upper surface of the lower pressing plate (2) along the width direction of the upper pressing plate (1) and the lower pressing plate (2).

3. A yarn tensioning device for a loom according to claim 1, characterized in that: The surfaces of the upper pressing plate (1) and the lower pressing plate (2) are provided with grooves for clamping the gasket block (3).

4. A yarn tensioning device for a loom according to claim 1, characterized in that: Each group of gasket blocks (3) comprises four gaskets.

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