Yarn guide device of warp knitting machine

Abstract

The utility model discloses a yarn guide device of a warp knitting machine, which relates to the technical field of textile equipment, and is characterized by comprising a mounting frame, a plurality of connecting rods are arrayed on the mounting frame, a plurality of yarn guide heads are arranged at the tops of two adjacent connecting rods, and a plurality of yarn guide heads are arranged on the mounting frame. The yarn guide head comprises metal strips rotationally connected with the connecting rod and yarn guide rollers connected between the two metal strips in a sliding mode, the metal strips have plasticity, and the bending degree of an arc-shaped yarn guide face formed by the yarn guide head can be changed by adjusting the combination position of the multiple yarn guide rollers. According to the utility model, by arranging the yarn guide surface consisting of the plurality of yarn guide rollers, the deflection angle of yarns during yarn guide is reduced, so that the stress in the yarns is reduced, and the risk of yarn breakage in the yarn guide process is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to textile equipment technical field more specifically, it relates to a warp knitting machine yarn guide device. BACKGROUND

[0002] A group or several groups of parallel arranged yarns are fed into a machine in the warp direction, and simultaneously form loops on all working needles to form a knitted fabric, this method is called warp knitting, the fabric is called warp knitted fabric, and the machine for completing the warp knitting is called a warp knitting machine, the yarn guide device including a guide needle is arranged in the warp knitting machine, the guide needle is arranged on the strip plate of the warp knitting machine to form a guide bar, the warp yarn passes through the eye of the guide needle, moves with the guide bar, and is wound on the needle, and the fabric is knitted by the cooperation of the needle, the sinker and other loop forming components.

[0003] In the yarn guide device, after the warp yarn passes through the eye of the guide needle, the yarn is bent under the resistance of the guide ring forming the eye of the guide needle, so that the running direction of the yarn is changed, the structure of the guide ring forming the eye of the guide needle in the prior art is relatively small, so that the bending angle of the yarn is large, and the bending angle of the yarn affects the breaking probability of the yarn, when the yarn experiences a large bending angle when passing through the yarn guide device, the local area of the yarn will be subjected to greater stress, thereby increasing the risk of breaking, therefore, a new scheme needs to be proposed to avoid the risk of yarn breaking as much as possible. SUMMARY

[0004] In view of the defects in the prior art, the purpose of the utility model is to provide a warp knitting machine yarn guide device, which has the advantages of reducing the stress of the yarn during yarn guiding and reducing the risk of yarn breaking.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a warp knitting machine yarn guide device, comprising a mounting frame, a plurality of connecting rods are arranged on the mounting frame, a yarn guide head is arranged at the top of adjacent two connecting rods, a plurality of yarn guide heads are arranged, the yarn guide head comprises a metal strip rotatably connected with the connecting rod and a yarn guide roller slidably connected between the two metal strips, the metal strip has plasticity, and the bending degree of the arc-shaped yarn guide surface formed by the yarn guide head is changed by adjusting the positions of the plurality of yarn guide rollers combined with each other.

[0006] The utility model is further provided: the one end of connecting rod of mounting frame is provided with sliding slot, the connecting rod is slidably connected with mounting frame through sliding slot, a plurality of clamping pieces are arranged along the length direction of the connecting rod, the slot wall of the sliding slot is provided with the clamping groove corresponding to the clamping piece, and the mounting frame limits the depth of the connecting rod inserted into the sliding slot through the clamping piece and the clamping groove.

[0007] The utility model further sets up: the one end of connecting rod is fixedly connected with elastic clamping piece away from mounting frame, connecting rod is through the elastic clamping piece and is held in the metal strip of both sides of guide head and is detachably connected with guide head.

[0008] The utility model further sets up: the metal strip is cylindrical, the both sides of guide roller are rotatably connected with the connecting piece corresponding to the metal strip, the metal strip passes through connecting piece and connects a plurality of guide rollers to form arc guide surface.

[0009] The utility model further sets up: the guide roller is set up as a column body with the lower concave arc surface formed by the wide two ends and the narrow middle.

[0010] The utility model further sets up: the clamping piece and elastic clamping piece are prepared through spring steel, and the metal strip is prepared by 1100 type aluminum.

[0011] In conclusion, the utility model has the following beneficial effects: the utility model through setting up the guide head formed by the plurality of guide rollers connected by the plastic metal sheet, makes the guide head form the bending degree of the arc surface that can be adjusted arbitrarily, reduces the stress that the yarn receives in the process of guiding the yarn, thereby reduces the risk of yarn breakage in the process of guiding the yarn, and the guide head is slidably connected with the mounting frame through the two connecting rods arranged at the bottom two sides, so that the depth of the connecting rod inserted into the mounting frame can be adjusted to make the guide head deviate, the guide surface formed by the guide head also deviates to increase the direction angle range of the yarn entering the utility model, and the type range of the warp knitting machine suitable for the utility model is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structural schematic diagram of the utility model;

[0013] Figure 2 It is Figure 1 The enlarged schematic diagram of A part in the middle;

[0014] Figure 3 It is Figure 1 The enlarged schematic diagram of B part in the middle.

[0015] In the drawing: 1, mounting frame;2, connecting rod;21, elastic clamping piece;22, clamping piece;3, guide head;31, guide roller;32, connecting piece;33, metal strip. DETAILED DESCRIPTION

[0016] The utility model will be described in detail below in combination with the drawings and examples.

[0017] Example: a warp knitting machine guide device, like Figure 1 , Figure 2As shown, including the mounting bracket 1, the mounting bracket 1 is arranged with a plurality of connecting rods 2, the mounting bracket 1 is arranged with a plurality of connecting rods 2, the top of the adjacent two connecting rods 2 is provided with the yarn guide head 3, the yarn guide head 3 is provided with a plurality of, the number of yarn guide head 3 determines the number of yarns that the device can guide, the yarn guide head 3 includes the metal strip 33 rotatably connected with the connecting rod 2 and the yarn guide roller 31 slidably connected between the two metal strips 33, the yarn guide roller 31 between the same root metal strip 33 is provided with a spacing easy to bend the metal strip 33, the metal strip 33 is prepared by the 1100 type aluminum with plasticity, the metal strip 33 prepared from the metal can be plastically deformed when subjected to external force and is not easy to break, can keep the new shape formed after bending, so as to change the position of the yarn guide roller 31 combined with each other, by adjusting the position of the plurality of yarn guide roller 31 combined with each other to change the bending degree of the arc-shaped yarn guide surface formed by the yarn guide head 3, after the utility model is installed on the warp knitting machine, the yarn is always attached to the yarn guide surface surrounded by a plurality of yarn guide rollers 31 and is guided out of the yarn guide head 3 from one end to the other end of the yarn guide head 3, so as to change the running track of the yarn by the yarn guide head 3, compared with the traditional yarn guide needle, through the yarn guide surface surrounded by a plurality of yarn guide rollers 31 in the utility model, the deflection angle of each section of the yarn is small, the stress in the yarn is small, thereby reducing the probability of yarn breakage, at the same time, the plastic metal strip 33 can be arranged to change the combination position of the yarn guide roller 31 and adjust the direction of the yarn guide, so that more warp knitting machines can be installed with the utility model, thereby increasing the application range of the utility model.

[0018] As Figures 1-3 shown, the mounting bracket 1 is provided with a sliding groove at one end of the connecting rod 2, and the connecting rod 2 is slidably connected with the mounting bracket 1 through the sliding groove, and the depth of the connecting rod 2 extending into the sliding groove can be adjusted by the design of the sliding connection between the connecting rod 2 and the mounting bracket 1, so that the yarn guide surface composed of a plurality of yarn guide rollers 31 is deflected, even when the yarn needs to be inclined into the warp knitting machine, the design of the utility model can be realized, further increasing the range of warp knitting machines suitable for the utility model, a plurality of clamping pieces 22 are arranged along the length direction of the connecting rod 2, the clamping piece 22 is composed of a spring steel elastic sheet movably connected at one end of the connecting rod 2 and a V-shaped protrusion formed in the middle, the slot wall of the sliding groove is provided with a clamping groove corresponding to the clamping piece 22, and the mounting bracket 1 limits the depth of the connecting rod 2 extending into the sliding groove through the clamping piece 22 and the clamping groove, thereby ensuring the connection stability of the connecting rod 2 and the mounting bracket 1.

[0019] As Figures 1-3 shown, the end of the connecting rod 2 away from the mounting bracket 1 is fixedly connected with an elastic clamping piece 21 made of spring steel, and the connecting rod 2 is detachably connected with the metal strip 33 on both sides of the yarn guide head 3 through the elastic clamping piece 21, which facilitates the installation and disassembly of the yarn guide head 3 and the connecting rod 2,

[0020] AsFigures 1-3 As shown, the metal strip 33 is cylindrical, and the two sides of the yarn guide roller 31 are rotatably connected with corresponding connecting pieces 32. The metal strip 33 passes through the connecting pieces 32 to connect several yarn guide rollers 31 to form an arc-shaped yarn guide surface. When the height of the connecting rods 2 on both sides of the yarn guide head 3 is different, the cylindrical metal strip 33 can be firmly clamped in the elastic clips 21 of the connecting rods 2, ensuring the feasibility of this utility model.

[0021] like Figures 1-3 As shown, the yarn guide roller 31 is configured as a cylinder that is wide at both ends, narrow in the middle, and has a concave arc surface. This shape of the yarn guide roller 31 ensures that the yarn always adheres to the surface of the yarn guide roller 31 during the movement driven by the warp knitting machine, and will not detach from the outside of the yarn guide roller 31 after the guide trajectory changes, thus preventing the yarn from bearing a large friction force and further reducing the risk of yarn breakage.

[0022] Working principle: After this invention is installed on a warp knitting machine, the yarn will be guided from one end of the yarn guide head 3 to the other along the yarn guide surface composed of several yarn guide rollers 31. This reduces the angle of deflection when the yarn changes direction, reduces the stress on the yarn, and reduces the risk of yarn breakage. Since the connecting rod 2 is provided with a snap-fit ​​part 22 and the mounting frame 1 is provided with a sliding groove and a snap-fit ​​groove, the height of the two connecting rods 2 located on both sides of a single yarn guide head 3 fixed in the sliding groove can be changed, thereby causing the yarn guide surface formed by the yarn guide rollers 31 to deflect. This ensures that the yarn is always in contact with the yarn guide surface formed by the yarn guide rollers 31 during the process of being guided from various positions, thus expanding the range of warp knitting machines to which this invention is applicable.

[0023] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A warp knitting machine thread guide comprising a mounting frame (1), characterised in that: The mounting rack (1) is provided with a plurality of connecting rods (2), the top of two adjacent connecting rods (2) is provided with a yarn guide head (3), the yarn guide head (3) is provided with a plurality of yarn guide heads (3), the yarn guide head (3) comprises a metal strip (33) rotatably connected with the connecting rod (2) and a yarn guide roller (31) slidably connected between the two metal strips (33), the metal strip (33) has plasticity, the bending degree of the arc-shaped yarn guide surface formed by the yarn guide head (3) can be changed by adjusting the position of the plurality of yarn guide rollers (31) combined with each other.

2. A guide device for a warp knitting machine according to claim 1, characterized in that: One end of the mounting rack (1) provided with the connecting rod (2) is provided with a sliding groove, the connecting rod (2) is slidably connected with the mounting rack (1) through the sliding groove, a plurality of clamping pieces (22) are arranged along the length direction of the connecting rod (2), the groove wall of the sliding groove is provided with a clamping groove corresponding to the clamping piece (22), the mounting rack (1) limits the depth of the connecting rod (2) inserted into the sliding groove through the clamping piece (22) and the clamping groove.

3. A guide device for a warp knitting machine according to claim 2, characterized in that: The end of the connecting rod (2) away from the mounting rack (1) is fixedly connected with an elastic clamping piece (21), the connecting rod (2) is detachably connected with the metal strip (33) on both sides of the yarn guide head (3) through the elastic clamping piece (21).

4. A guide device for a warp knitting machine according to claim 3, characterized in that: The metal strip (33) is in a cylindrical shape, the two sides of the yarn guide roller (31) are rotatably connected with a connecting piece (32) corresponding to the metal strip (33), the metal strip (33) penetrates through the connecting piece (32) to connect a plurality of yarn guide rollers (31) to form an arc-shaped yarn guide surface.

5. A guide device for a warp knitting machine according to claim 4, characterized in that: The yarn guide roller (31) is provided as a column body with a wide end, a narrow middle and a concave arc-shaped cylindrical surface.

6. A guide device for a warp knitting machine according to claim 5, characterized in that: The clamping piece (22) and the elastic clamping piece (21) are made of spring steel, and the metal strip (33) is made of 1100 type aluminum.

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