Leno-selvage mechanism for air jet loom

Abstract

The edge twisting mechanism comprises a cam shaft arranged on a machine body, a driving chain wheel is sleeved on the outer wall of the cam shaft, a chain wheel seat support is arranged on the outer wall of the machine body through a first bolt, and a chain wheel shaft is arranged at one end, far away from the machine body, of the chain wheel seat support. The outer wall of the chain wheel shaft is sleeved with a driven chain wheel, the driving chain wheel is connected with the driven chain wheel through a roller chain, the chain wheel shaft is further oppositely provided with selvedge yarn swing arms, the front ends of the two sets of selvedge yarn swing arms are arranged in opposite directions, and the selvedge yarn swing arms are provided with selvedge yarn wheels for harness wires to be arranged in a sleeved mode. After the belt is used for a long time, the inner wall of the belt is aged and abraded, slipping is caused in use, overall use is affected, meanwhile, a worker needs to disassemble a bearing seat to adjust the tensioning force of the belt, and the tensioning force of the belt is very troublesome to adjust, so that the problem of slipping in use is solved, and meanwhile, the worker can adjust the tensioning force conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to air-jet loom equipment technical field, especially air-jet loom edge twisting mechanism. BACKGROUND

[0002] Air-jet loom is with air as weft insertion medium, and the compressed air jet produces friction traction to weft yarn, and weft yarn is brought through the shedding, and the jet flow produced by air-jet loom is used to achieve the purpose of weft insertion, and the weft insertion mode is reasonable, and the operation is simple and safe, and the material consumption is less, and the efficiency is high, and the speed is high, and the noise is low, so the air-jet loom is widely used.

[0003] The traditional air-jet loom edge twisting mechanism is controlled by mechanical mode, and a series of gears, conjugate cam and connecting rod mechanism are arranged on the machine body to realize the edge twisting action, the driving wheel is sleeved on the cam shaft, the conjugate cam and the driven wheel are sequentially sleeved on the connecting rod, the driven wheel is supported on the machine body through the bearing seat, the driving wheel is connected with the driven wheel through the belt to drive, so that the conjugate cam rotates to drive the swing rod to move up and down, and the heald is indirectly driven to move up and down alternately.

[0004] But the belt is connected, and the inner wall of the belt is aged and worn after long-term use, which causes slipping during use and affects the overall use, and the personnel need to disassemble the bearing seat to adjust the belt tension, which is very troublesome. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the defects of the prior art, and provides an air-jet loom edge twisting mechanism.

[0006] The above technical purpose of the utility model is realized by the following technical scheme: an air-jet loom edge twisting mechanism, including the cam shaft arranged on the machine body, the driving sprocket is sleeved on the outer wall of the cam shaft, the chain wheel seat support is arranged on the outer wall of the machine body, the chain wheel seat support is arranged on the outer wall of the machine body through the bolt one, the chain wheel shaft is arranged on the chain wheel seat support away from the machine body, the driven sprocket is sleeved on the outer wall of the chain wheel shaft, the driving sprocket is connected with the driven sprocket through the roller chain, the edge twisting yarn swing arm is also oppositely arranged on the chain wheel shaft, and the front ends of the two groups of edge twisting yarn swing arms are oppositely arranged, and the edge twisting yarn swing arm is provided with the edge twisting yarn wheel for the heald.

[0007] Preferably, the chain wheel seat support is provided with a guide groove, and the guide groove is provided with a positioning bolt.

[0008] As preferred, the edge twisting yarn swing arm is composed of a fixed block sleeved on the outer wall of the sprocket shaft and an adjusting block connected with the fixed block, and two bolts are screwed on the fixed block, the fixed block is clamped on the outer wall of the sprocket shaft through the two bolts, and the edge twisting yarn wheel is connected with the adjusting block through a screw.

[0009] As preferred, a plurality of groups of mounting holes are formed on the adjusting block along the length direction of the adjusting block, and the edge twisting yarn wheel is connected with the mounting holes through a screw.

[0010] As preferred, a through hole concentrically arranged with the sprocket shaft is formed on the sprocket seat support, a sprocket seat is arranged at the through hole, the sprocket shaft passes through the sprocket seat and is concentrically arranged with the sprocket seat, a bearing is sleeved on one end of the sprocket shaft inside the sprocket seat, and a retainer ring is arranged on opposite sides of the bearing.

[0011] As preferred, the retainer ring comprises an axle retainer ring sleeved on the outer wall of the sprocket shaft on both sides of the bearing and a hole retainer ring attached to the inner wall of the sprocket seat on both sides of the bearing.

[0012] As preferred, the middle part of the edge twisting yarn wheel is provided with an inner groove for sleeving the heald.

[0013] The utility model discloses a camshaft, the body is fixed through bolt one sprocket seat support, and the sprocket seat support is provided with sprocket shaft support driven sprocket, and the main sprocket and driven sprocket are driven through the roller chain, and the power is transmitted through the sprocket chain, and there is no elastic sliding and skidding phenomenon, and the average transmission ratio is accurate, and the work is reliable, and the efficiency is high.

[0014] A guide groove is formed on the sprocket seat support, and the angle position of the sprocket seat support on the body can be adjusted conveniently by cooperating with the positioning bolt, the sprocket seat support can be rotated and adjusted, and the personnel can conveniently adjust the tension of the roller chain.

[0015] The sprocket shaft is also provided with two sets of edge twisting yarn swing arms, and the front ends of the two sets of edge twisting yarn swing arms are arranged in opposite directions, a plurality of groups of mounting holes are formed on the adjusting block of the edge twisting yarn swing arm, the edge twisting yarn wheel is connected with the mounting holes through a screw, and the plurality of hole positions on the adjusting block can facilitate the personnel to adjust the edge opening height.

[0016] The edge twisting yarn wheel adopts the inner groove arranged in the middle part, and the heald is sleeved in the inner groove, so that the problem of heald wheel falling is reduced. DRAWINGS

[0017] Figure 1 It is a structure schematic view of the upper part mechanism of the body in an embodiment of the utility model.

[0018] Figure 2 It is a structure schematic view of the upper part mechanism of the body in an embodiment of the utility model. Figure 1 It is an enlarged view of part A.

[0019] Figure 3 Figure 1 is a schematic view of a chain wheel seat support part mechanism according to an embodiment of the present application;

[0020] Figure 4 Figure 1 is a schematic view of a chain wheel seat support part mechanism according to an embodiment of the present application;

[0021] Reference signs: 1, driving chain wheel; 2, machine body; 3, chain wheel seat support; 4, driven chain wheel; 5, fixed block; 6, twisting edge yarn wheel; 7, screw; 8, chain wheel shaft; 9, bearing; 10, hole check ring; 11, shaft check ring; 12, inner groove; 13, chain wheel seat; 14, cam shaft; 15, screw bolt one; 16, positioning bolt; 17, guide groove; 18, mounting hole; 19, screw bolt two; 20, adjusting block. DETAILED DESCRIPTION

[0022] The following description is only a preferred embodiment of the present application, the protection scope is not limited to the embodiment, any technical solution falling within the concept of the present application should fall within the protection scope of the present application, and it should be pointed out that, for ordinary skilled in the art, some improvements and refinements without departing from the principle of the present application should be considered as the protection scope of the present application.

[0023] It should be noted that, in this paper, relationship terms such as first and second, such as "connecting plate one, connecting plate two", etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations.

[0024] The orientation words mentioned in the embodiment, such as "up, down, left, right" and the like, are only used to cooperate with the drawings to enable those skilled in the art to understand the relationship between the features or parts.

[0025] In the embodiment, unless otherwise specified and limited, the terms "connection", "fixation" and the like should be understood broadly, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specified, the above-mentioned terms in the present application can be understood according to the specific meaning of the above-mentioned terms in the present application according to the specific circumstances.

[0026] For example, the chain wheel seat support part mechanism according to the present application can be used in the following aspects: Figures 1 to 4As shown, a kind of edge twisting mechanism for air jet loom, including the camshaft 14 set on the body 2, in the present embodiment, the camshaft 14 is connected with the drive end of body 2, its purpose is, carry out rotation around its central axis, the outer wall of camshaft 14 is sleeved with driving sprocket 1, the outer wall of body 2 is connected with sprocket seat support 3 by bolt one 15, and arc-shaped guide slot 17 is opened in the upper end of sprocket seat support 3, positioning bolt 16 is penetrated in guide slot 17, the bottom end of positioning bolt 16 can be attached with the outer wall of body 2, to play the role of top fixed sprocket seat support 3 position.

[0027] The lower end of sprocket seat support 3 is horizontally provided with sprocket shaft 8, the outer wall of one end of sprocket shaft 8 is sleeved with driven sprocket 4, driving sprocket 1 is connected with driven sprocket 4 by roller chain (not shown in the drawing), and sprocket shaft 8 is also oppositely provided with edge twisting yarn swing arm, in the present embodiment, the edge twisting yarn swing arm is composed of fixed block 5 sleeved on the outer wall of sprocket shaft 8 and adjusting block 20 connected therewith, specifically, one end of fixed block 5 is connected with one end of adjusting block 20 by welding, its purpose is to ensure the linkage between fixed block 5 and adjusting block 20, and the fixed block 5 can drive adjusting block 20 to move together when the fixed block 5 moves.

[0028] Screw two 19 is screwed on fixed block 5 and clamped on the outer wall of sprocket shaft 8 by screw two 19, a plurality of groups of mounting holes 18 are opened on adjusting block 20 along the length direction thereof, and sprocket 7 can be used to position edge twisting yarn wheel 6, it should be noted that the front end of the heald is sleeved in the inner groove 12 of the edge twisting yarn wheel 6, and the screw 7 is penetrated through the middle part of the edge twisting yarn wheel 6 and is screwed with the mounting hole 18 through the nut (not shown in the drawing), so that the edge twisting yarn wheel 6 is limited on the adjusting block 20, but it can still rotate along the central axis thereof, avoiding that the heald is wound into the inner groove 12 of the edge twisting yarn wheel 6 when the adjusting block 20 rotates around the central axis of the sprocket shaft 8, and the front ends of the two groups of edge twisting yarn swing arms are oppositely arranged.

[0029] A through hole concentrically arranged with sprocket shaft 8 is opened in the lower end of sprocket seat support 3, sprocket seat 13 is arranged on one side of the through hole, sprocket shaft 8 penetrates through sprocket seat 13 and is concentrically arranged with sprocket seat 13, bearing 9 is sleeved on one end of sprocket shaft 8 in sprocket seat 13, and retainer ring pieces are arranged on the opposite sides of bearing 9, in the present embodiment, the retainer ring pieces include shaft retainer ring 11 on the outer wall of sprocket shaft 8 on the two sides of bearing 9, and hole retainer ring 10 on the outer wall on the two sides of bearing 9 and attached with the inner wall of sprocket seat 13.

[0030] When the personnel need to drive the heald, the driving sprocket 1 is driven by the camshaft 14, the driving sprocket 1 drives the driven sprocket 4 to rotate around the center axis by the roller chain, and synchronously drives the two edge yarn swing arms on the opposite ends to rotate in the same direction, but the front ends of the two groups of edge yarn swing arms are in opposite directions, thereby driving the respective sleeved healds to reciprocate up and down.

[0031] The above examples are illustrative of the present application and are not limiting of the present application. Any simple variations of the present application that are obvious to those skilled in the art are intended to be within the scope of the present application.

Claims

1. A twisting mechanism for air jet loom, comprising a cam shaft (14) arranged on a machine body (2), characterized in that an outer wall of the cam shaft (14) is sleeved with a driving sprocket (1), a sprocket seat support (3) is arranged on an outer wall of the machine body (2) through a bolt (15); an end of the sprocket seat support (3) away from the machine body (2) is provided with a sprocket shaft (8), an outer wall of the sprocket shaft (8) is sleeved with a driven sprocket (4), the driving sprocket (1) is connected with the driven sprocket (4) through a roller chain; opposite twisting yarn swing arms are arranged on the sprocket shaft (8), and front ends of the two groups of twisting yarn swing arms are arranged in opposite directions; a twisting yarn wheel (6) for housing a heald is arranged on the twisting yarn swing arm.

2. The edger mechanism for air jet loom according to claim 1, wherein A guide groove (17) is arranged on the sprocket seat support (3), and a positioning bolt (16) is arranged at the guide groove (17).

3. The edger mechanism for air jet loom according to claim 1, wherein The twisting yarn swing arm is composed of a fixed block (5) sleeved on an outer wall of the sprocket shaft (8) and an adjusting block (20) connected with the fixed block (5), a bolt (19) is screwed on the fixed block (5), the fixed block (5) is clamped on the outer wall of the sprocket shaft (8) through the bolt (19), and the twisting yarn wheel (6) is connected with the adjusting block (20) through a screw (7).

4. The edger mechanism for air-jet looms according to claim 3, characterized in that, A plurality of groups of mounting holes (18) are arranged on the adjusting block (20) along a length direction of the adjusting block (20), and the twisting yarn wheel (6) is connected with the mounting holes (18) through the screw (7).

5. The edger mechanism for air jet loom according to claim 1, wherein A through hole is arranged on the sprocket seat support (3) and is concentric with the sprocket shaft (8), a sprocket seat (13) is arranged at the through hole, the sprocket shaft (8) passes through the sprocket seat (13) and is concentric with the sprocket seat (13), a bearing (9) is sleeved on an end of the sprocket shaft (8) in the sprocket seat (13), and the bearing (9) is provided with a retainer ring on opposite sides.

6. The edger mechanism for a jet loom according to claim 5, wherein The retainer ring comprises an axle retainer ring (11) sleeved on an outer wall of the sprocket shaft (8) and located on both sides of the bearing (9) and a hole retainer ring (10) located on both sides of the bearing (9) and attached to an inner wall of the sprocket seat (13).

7. The edger mechanism for air jet loom according to claim 1, wherein A recessed groove (12) for housing a heald is arranged on a middle portion of the twisting yarn wheel (6).

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