Double-layer fabric weft insertion device

Abstract

The double-layer fabric weft insertion device comprises a weft insertion nozzle and a yarn guide tube, the yarn guide tube is installed at an outlet of the weft insertion nozzle in a communicated mode, the double-layer fabric weft insertion device further comprises a pushing and guiding mechanism, and the pushing and guiding mechanism comprises a nozzle support, a clamping block, an electric push rod, a front connecting plate, an outer arc plate and an arc through strip. A nozzle support used for installing the weft insertion nozzle is improved to be a pushing and guiding mechanism, the pushing and guiding mechanism drives a front connecting plate to stretch out and draw back through an electric push rod, and the front connecting plate can drive an arc through strip to stretch out and draw back in the weft insertion nozzle and a yarn guide pipe through an outer arc plate; according to the weft insertion nozzle and the yarn guide tube, fiber blocking objects in the weft insertion nozzle and the yarn guide tube can be pushed out, the problem that the weft insertion nozzle and the yarn guide tube are blocked is effectively avoided, and the pushing mechanism can be periodically started in the weft insertion process of the weft insertion nozzle, so that the arc through strip conducts pushing and impurity removal on fibers in the weft insertion cavity in the weft insertion process of the weft insertion nozzle; it is guaranteed that the weft insertion nozzle can conduct regular impurity removal under the non-stop condition.

Description

Technical Field

[0001] The utility model relates to the technical field of fabric weft insertion devices, and particularly relates to a double-layer fabric weft insertion device. Background Technique

[0002] A double-layer fabric is a fabric structure made by sandwiching a layer of fluff or film material between two layers of fabric. When producing double-layer fabrics, a jet loom is usually used. The weft insertion device on the jet loom is used to transport the weft yarn to the warp yarn so that the warp and weft are interlaced to form a fabric. Generally, the weft insertion device includes a nozzle. One end of the nozzle is arranged facing the opening of the warp yarn, and the other end of the nozzle is provided with an inlet for the weft yarn. Moreover, the nozzle is communicated with a pressure pipe, and the pressure pipe is connected to an air compressor. Under the action of the pressure pipe, the air compressor can input high-pressure air into the nozzle. Subsequently, the weft yarn entering the nozzle is guided by the high-pressure air flow, and the weft yarn can be ejected from the nozzle and interlaced with the warp yarn.

[0003] When the weft yarn of the prior art double-layer fabric is sprayed and guided through the weft insertion nozzle, the weft yarn will be guided to the jet loom by compressed air multiple times for processing. However, this kind of weft insertion nozzle is prone to fiber dust entering and clogging during the weft insertion process. When the weft insertion nozzle is clogged, the weft insertion channel of the weft insertion nozzle cannot smoothly feed the weft yarn, which affects the production of double-layer fabrics. For this situation, workers usually need to manually stop the jet loom and clean it manually. And stopping the machine to clean the weft insertion nozzle will affect the production efficiency of double-layer fabrics. Therefore, we propose a double-layer fabric weft insertion device. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a double-layer fabric weft insertion device. By improving the nozzle bracket for installing the weft insertion nozzle into a derivation mechanism, the derivation mechanism drives the front connecting plate to expand and contract with an electric push rod. The front connecting plate can drive the arc through-bar to expand and contract in the weft insertion nozzle and the yarn guide tube through the outer arc plate. As the arc through-bar reciprocates and expands and contracts, the fiber blockages in the weft insertion nozzle and the yarn guide tube can be pushed out, effectively avoiding the clogging problem at the weft insertion nozzle and the yarn guide tube. And the derivation mechanism can be regularly started during the weft insertion process of the weft insertion nozzle, so that the arc through-bar can derive and remove impurities of the fibers in the weft insertion cavity during the weft insertion process of the weft insertion nozzle, ensuring that the weft insertion nozzle can perform timed impurity cleaning without stopping the machine, and effectively solving the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A double-layer fabric weft insertion device includes a weft insertion nozzle and a yarn guide tube. The yarn guide tube is installed in communication with the outlet of the weft insertion nozzle. It further includes a derivation mechanism, which includes a nozzle bracket, a clamping block, an electric push rod, a front connecting plate, an outer arc plate, and an arc through bar. The housing of the weft insertion nozzle is snapped into the installation hole opened on the surface of the nozzle bracket, and a spinning hole is opened on the side frame plate of the nozzle bracket. A bolt for spinning and pressing against the weft insertion nozzle inside the installation hole is screwed into the spinning hole. And a clamping block is fixed on the surface of the nozzle bracket outside the installation hole. A rod groove is opened on the surface of the block body of the clamping block, and a spinning connection hole for screwing the bolt is penetrated between the groove wall of the rod groove and the block body of the clamping block. An electric push rod is installed on the surface of the other block body of the nozzle bracket away from the clamping block, and a front connecting plate is locked with a bolt at the telescopic rod head of the electric push rod. An outer arc plate is welded to an arc through bar on one side of the plate body of the front connecting plate, and the arc through bar is inserted into the yarn guide tube along the weft insertion nozzle.

[0007] Further, a bolt is screwed between the seat body of the electric push rod and the frame plate of the nozzle bracket, and a support seat is welded on the surface of the nozzle bracket below the electric push rod. The housing of the electric push rod is clamped in the support seat;

[0008] By adopting the above technical solution, after the electric push rod is installed on the surface of the nozzle bracket with bolts, there is a support seat below the nozzle bracket to support the housing of the electric push rod.

[0009] Further, head connection holes are opened on the end face of the telescopic rod head of the electric push rod and the surface of the plate body of the front connecting plate, and a bolt is screwed between the head connection holes of the front connecting plate and the telescopic rod head;

[0010] By adopting the above technical solution, the bolt can be screwed into the telescopic rod head of the electric push rod from the head connection hole of the front connecting plate for installation.

[0011] Further, the plate body of the front connecting plate is welded to the outer arc surface of the outer arc plate, and the arc through bar is welded to the inner arc surface of the outer arc plate;

[0012] By adopting the above technical solution, the front connecting plate can be welded to the arc through bar by fitting with the outer arc plate.

[0013] Further, the length of the weft insertion cavity after the weft insertion nozzle and the yarn guide tube are installed is less than the length of the bar body of the arc through bar;

[0014] By adopting the above technical solution, the arc through bar can push out the fiber blockage in the weft insertion nozzle and the yarn guide tube in the weft insertion nozzle and the yarn guide tube.

[0015] Further, the groove body of the rod groove is a groove cavity composed of a column groove and a strip groove, and the strip groove surface of the rod groove is provided with an inward orifice of the spinning connection hole;

[0016] By adopting the above technical solution, the mounting rod of the air-jet loom can be inserted into the column groove from the strip groove of the rod groove, and then the bolt is screwed out from the rotary connection hole of the clamping block, so as to lock the notch of the rod groove, enabling the clamping block to be clamped at the mounting rod of the air-jet loom.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] In the utility model, the nozzle bracket for installing the weft insertion nozzle is improved and arranged as a derivation mechanism. The derivation mechanism drives the front connecting plate to expand and contract by an electric push rod. The front connecting plate can drive the arc through-bar to expand and contract in the weft insertion nozzle and the yarn guide tube through the outer arc plate. As the arc through-bar reciprocally expands and contracts, the fiber blockages in the weft insertion nozzle and the yarn guide tube can be pushed out, effectively avoiding the blockage problem at the weft insertion nozzle and the yarn guide tube.

[0019] And the derivation mechanism can be regularly started during the weft insertion process of the weft insertion nozzle, so that the arc through-bar derives and removes the fibers in the weft insertion cavity during the weft insertion process of the weft insertion nozzle, ensuring that the weft insertion nozzle can be regularly cleaned without stopping the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a double-layer fabric weft insertion device of the utility model.

[0021] Figure 2 FIG. 2 is an exploded view of a double-layer fabric weft insertion device of the utility model.

[0022] In the figure: 1, weft insertion nozzle; 2, yarn guide tube; 3, derivation mechanism; 4, nozzle bracket; 5, mounting hole; 6, swaging hole; 7, clamping block; 8, rod groove; 9, rotary connection hole; 10, electric push rod; 11, head connection hole; 12, front connecting plate; 13, outer arc plate; 14, arc through-bar; 15, support base. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the technical means, creative features, achieved purposes and functions of the utility model easy to understand, the utility model will be further described below in conjunction with specific embodiments.

[0024] As Figure 1-2As shown in the figure, a double-layer fabric weft insertion device includes a weft insertion nozzle 1 and a yarn guide tube 2. The yarn guide tube 2 is installed in communication at the outlet of the weft insertion nozzle 1. It further includes a derivation mechanism 3. The derivation mechanism 3 includes a nozzle support 4, a clamping block 7, an electric push rod 10, a front connecting plate 12, an outer arc plate 13 and an arc through bar 14. The housing of the weft insertion nozzle 1 is snapped into the installation hole 5 opened on the surface of the nozzle support 4. And a spinning hole 6 is opened on the side frame plate of the nozzle support 4. A bolt for spinning and pressing against the weft insertion nozzle 1 inside the installation hole 5 is screwed in the spinning hole 6. And a clamping block 7 is fixed on the surface of the nozzle support 4 outside the installation hole 5. A rod groove 8 is opened on the surface of the block body of the clamping block 7. And a spinning connection hole 9 for screwing the bolt is penetrated between the groove wall of the rod groove 8 and the block body of the clamping block 7. The electric push rod 10 is installed on the surface of the other side block body of the nozzle support 4 away from the clamping block 7. And the telescopic rod head of the electric push rod 10 is locked with the front connecting plate 12 by a bolt. One side of the plate body of the front connecting plate 12 welds the arc through bar 14 with the outer arc plate 13. And the arc through bar 14 is inserted into the yarn guide tube 2 along the weft insertion nozzle 1.

[0025] Among them, a bolt is screwed between the seat body of the electric push rod 10 and the frame plate of the nozzle support 4. And a support seat 15 is welded on the surface of the nozzle support 4 below the electric push rod 10. The housing of the electric push rod 10 is clamped in the support seat 15;

[0026] By adopting the above technical solution, after the electric push rod 10 is installed on the surface of the nozzle support 4 with bolts, there is a support seat 15 below the nozzle support 4 to support the housing of the electric push rod 10.

[0027] Among them, head connection holes 11 are opened on the end face of the telescopic rod head of the electric push rod 10 and the surface of the plate body of the front connecting plate 12. And a bolt is screwed between the head connection holes 11 of the front connecting plate 12 and the telescopic rod head;

[0028] By adopting the above technical solution, the bolt can be screwed into the telescopic rod head of the electric push rod 10 from the head connection hole 11 of the front connecting plate 12 for installation.

[0029] Among them, the plate body of the front connecting plate 12 is welded on the outer arc surface of the outer arc plate 13. And the arc through bar 14 is welded on the inner arc surface of the outer arc plate 13;

[0030] By adopting the above technical solution, the front connecting plate 12 and the outer arc plate 13 can be welded to fit the arc through bar 14.

[0031] Among them, the length of the weft insertion cavity after the weft insertion nozzle 1 and the yarn guide tube 2 are installed is less than the length of the bar body of the arc through bar 14;

[0032] By adopting the above technical solution, the arc through bar 14 can push out the fiber blockage in the weft insertion nozzle 1 and the yarn guide tube 2 in the weft insertion nozzle 1 and the yarn guide tube 2.

[0033] Among them, the groove body of the rod groove 8 is a groove cavity composed of a column groove and a strip groove, and the inner orifice of the rotation connection hole 9 is arranged on the strip groove surface of the rod groove 8.

[0034] By adopting the above technical solution, the installation rod of the air-jet loom can be inserted into the column groove from the strip groove of the rod groove 8, and then the bolt is screwed out from the rotation connection hole 9 of the clamping block 7, so as to lock the notch of the rod groove 8, so that the clamping block 7 can be clamped at the installation rod of the air-jet loom.

[0035] It should be noted that the present utility model is a double-layer fabric weft insertion device. The nozzle bracket 4 for installing the weft insertion nozzle 1 is improved to be a derivation mechanism 3. The installation rod of the air-jet loom can be inserted into the column groove from the strip groove of the rod groove 8, and then the bolt is screwed out from the rotation connection hole 9 of the clamping block 7, so as to lock the notch of the rod groove 8, so that the clamping block 7 can be clamped at the installation rod of the air-jet loom. Then, the weft insertion nozzle 1 can be inserted into the installation hole 5 of the nozzle bracket 4, and the weft insertion nozzle 1 is screwed and pressed into the installation hole 5 by using a bolt from the swaging hole 6. Moreover, the arc through-strip 14 welded by the outer arc plate 13 outside the outer side of the front connecting plate 12 can be inserted into the weft insertion nozzle 1 and the yarn guide tube 2. And the electric push rod 10 can be installed on the surface of the nozzle bracket 4 and supported by the support seat 15. At the same time, there is a bolt at the front connecting plate 12 to screw and install the front connecting plate 12 at the telescopic rod head of the electric push rod 10. The electric push rod 10 can be connected to an external controller for timed telescoping. After the electric push rod 10 is telescopically extended and retracted regularly, the front connecting plate 12 can drive the arc through-strip 14 to telescopically extend and retract in the weft insertion nozzle 1 and the yarn guide tube 2. With the reciprocating telescopic movement of the arc through-strip 14, the fiber blockages in the weft insertion nozzle 1 and the yarn guide tube 2 can be pushed out, effectively avoiding the blockage problem at the weft insertion nozzle 1 and the yarn guide tube 2. The weft of the double-layer fabric can be ejected outwards from one side of the arc through-strip 14 through the weft insertion nozzle 1 and the yarn guide tube 2 by jetting air.

[0036] It should be noted that the present utility model is a double-layer fabric weft insertion device. The components in the present utility model are all components known to those skilled in the art, and their structures and principles can all be known by those skilled in the art through technical manuals or by conventional experimental methods.

[0037] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A double-layer fabric weft insertion device, comprising a weft insertion nozzle (1) and a yarn guide tube (2), wherein the outlet of the weft insertion nozzle (1) is interconnected with the yarn guide tube (2), and is characterized in that: The invention also comprises a derivation mechanism (3), wherein the derivation mechanism (3) comprises a nozzle bracket (4), a clamping block (7), an electric push rod (10), a front connecting plate (12), an outer arc plate (13) and an arc pass bar (14); the shell of the weft insertion nozzle (1) is inserted into a mounting hole (5) provided on the surface of the nozzle bracket (4); a spinning hole (6) is provided on the side frame plate of the nozzle bracket (4); a bolt for screwing the weft insertion nozzle (1) inside the mounting hole (5) is screwed into the spinning hole (6); and a clamping block (7) is fixed to the surface of the nozzle bracket (4) outside the mounting hole (5). 7), a rod groove (8) is provided on the block surface of the clamping block (7), and a screw connection hole (9) for screwing a bolt is provided between the groove wall of the rod groove (8) and the block body of the clamping block (7), an electric push rod (10) is installed on the block surface of the nozzle bracket (4) away from the clamping block (7), and a front connecting plate (12) is locked with bolts at the telescopic rod head of the electric push rod (10), an arc pass (14) is welded to an outer arc plate (13) on one side of the plate body of the front connecting plate (12), and the arc pass (14) is inserted into the yarn guide tube (2) along the weft insertion nozzle (1).

2. A double-layer fabric weft insertion device according to claim 1, characterized in that: Bolts are screwed between the seat body of the electric push rod (10) and the frame plate of the nozzle bracket (4), and a bracket (15) is welded on the surface of the nozzle bracket (4) below the electric push rod (10), and the housing of the electric push rod (10) is clamped in the bracket (15).

3. A double-layer fabric weft insertion device according to claim 1, characterized in that: The telescopic rod head end surface of the electric push rod (10) and the plate body surface of the front connecting plate (12) are provided with a head connecting hole (11), and a bolt is screwed between the front connecting plate (12) and the head connecting hole (11) of the telescopic rod head.

4. A double-layer fabric weft insertion device according to claim 1, characterized in that: The plate body of the front connecting plate (12) is welded to the outer arc surface of the outer arc plate (13), and the arc pass bar (14) is welded to the inner arc surface of the outer arc plate (13).

5. A double-layer fabric weft insertion device according to claim 1, characterized in that: After the weft insertion nozzle (1) and the yarn guide tube (2) are installed, the length of the weft insertion cavity is less than the length of the arc pass bar (14).

6. A double-layer fabric weft insertion device according to claim 1, characterized in that: The groove body of the rod groove (8) is a groove cavity composed of a column groove and a strip groove, and the strip groove surface of the rod groove (8) is provided with an inward opening of the screw-on hole (9).

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