High-precision weft yarn positioning device of water-jet loom

Abstract

The invention discloses a high-precision weft yarn positioning device of a water-jet loom, which belongs to the technical field of textile machinery and comprises a positioning frame, pulleys are symmetrically arranged on one side of the positioning frame, a positioning block is arranged in the positioning frame, a tensioning wheel is arranged on one side of the positioning block, an electric push rod is arranged at the upper end of the positioning block, and a side plate is arranged on the surface of the electric push rod. According to the device, through the arrangement of the dismounting and mounting assembly, rapid dismounting and mounting of the electric push rod are achieved, the mounting efficiency of the device is improved, the movement track of the movable plate is limited through the arrangement of the limiting block with the rolling wheels, and the stability of the structure is improved; according to the weft yarn loosening prevention device, weft yarn loosening prevention is achieved by arranging the weft yarn loosening prevention assembly, the influence on processing caused by weft yarn loosening is reduced, the reliability of the device is improved, the connecting rod is arranged to be connected to the two limiting rods, and workers can conveniently and synchronously pull the limiting rods.

Description

Technical Field

[0001] The invention belongs to the technical field of textile machinery, and in particular relates to a high-precision weft positioning device for a water jet loom. Background Art

[0002] The water jet loom is a shuttleless loom that uses a jet of water to pull the weft yarn through the shed. The frictional traction of the water jet weft insertion on the weft yarn is greater than that of the air jet weft insertion, and the diffusion is small. It is suitable for the weft insertion of filaments such as synthetic fibers and glass fibers with smooth surfaces.

[0003] Chinese patent application No. 202223098016.X discloses a high-precision positioning device for the weft yarn of a water jet loom, comprising a positioning frame, a pulley and a tensioning wheel, and also comprising a wheel adjustment mechanism and a guiding mechanism. The wheel adjustment mechanism is composed of a positioning groove, a sealing block, a bottom hole, an electric push rod and a positioning block. The surface of the positioning frame is symmetrically mounted with pulleys, and a wheel adjustment mechanism is arranged at the positioning frame between the pulleys. The weft yarn of the water jet loom can be led outward through the pulley and the tensioning wheel. At this time, the control end of the electric push rod can be connected to the control system of the water jet loom. When the weft yarn at the positioning frame needs to be tensioned and adjusted, the telescopic rod of the electric push rod can be pulled upward or upward. At this time, the block body of the positioning block can be moved upward in the positioning groove and positioned to a fixed height, and then the height difference between the tensioning wheel and the pulley changes, which can better perform high-precision positioning and adjustment of the tensioning wheel for the weft yarn of the water jet loom, and this electrically controlled wheel adjustment mechanism facilitates real-time tension adjustment during weft transmission.

[0004] The above-mentioned disclosed patent has the following problems when used: the high-precision positioning device lacks disassembly and assembly components, and the electric push rod needs to be installed by tightening the bolts separately. This method is cumbersome to operate and inconvenient to install the electric push rod. The high-precision positioning device lacks anti-offline components. When the tensioning wheel moves up and down, the lack of anti-offline measures will cause the weft yarn to detach from the tensioning wheel, resulting in the weft yarn processing being affected. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a high-precision weft positioning device for a water jet loom, which has the characteristics of convenient disassembly and assembly of the electric push rod and can prevent the weft from falling off.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-precision weft yarn positioning device for a water jet loom, comprising a positioning frame, a pulley is symmetrically arranged on one side of the positioning frame, a positioning block is arranged inside the positioning frame, a tensioning wheel is arranged on one side of the positioning block, an electric push rod is arranged at the upper end of the positioning block, a side plate is arranged on the surface of the electric push rod, a disassembly and assembly component is arranged on the upper end of the side plate, and an anti-line derailment component is arranged on one side of the tensioning wheel.

[0007] Preferably, the disassembly and assembly components include a fixed plate, a No. 1 spring, a movable plate, a block, a card plate, a trapezoidal block and a slider, wherein a fixed plate is symmetrically arranged at the upper end of the positioning frame, a No. 1 spring is arranged on one side of the fixed plate, a movable plate is arranged at one end of the No. 1 spring, a slider is arranged at the lower end of the movable plate, a block is arranged on one side of the movable plate, a card plate is arranged inside the block, and a trapezoidal block is arranged at the lower end of the card plate.

[0008] Preferably, a limiting block is provided at the lower end of the sliding block, and a roller is provided at the lower end of the limiting block.

[0009] Preferably, an inclined plate is symmetrically provided on one side of the trapezoidal block, and a fixed block is provided at the lower end of the inclined plate.

[0010] Preferably, the anti-offline assembly includes a support plate, a support rod, a movable block, a fixed frame, a limit rod, a No. 2 spring, a fixed column and a baffle, wherein a support plate is symmetrically arranged on the other side of the positioning frame, a support rod is arranged at the lower end of the support plate, a movable block is arranged on the surface of the support rod, a fixed frame is arranged on one side of the movable block, a limit rod is symmetrically arranged inside the fixed frame, a No. 2 spring is arranged on the surface of the limit rod, a No. 2 spring is arranged at one end of the No. 2 spring, and a fixed column is arranged inside the baffle.

[0011] Preferably, a stopper is provided at one end of the limit rod, and a connecting rod is provided at one side of the stopper.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention realizes quick disassembly and assembly of the electric push rod by setting a disassembly and assembly component, replaces the cumbersome process of disassembly by screwing bolts, improves the installation efficiency of the high-precision positioning device, and sets a limit block with a roller to limit the moving trajectory of the movable plate, which is beneficial to improving the stability of the structure.

[0014] 2. The present invention prevents the weft yarn from falling off by setting an anti-offline component, reduces the impact of the weft yarn escaping from the tensioning wheel on the processing, improves the reliability of the device, and sets a connecting rod connected to the two limit rods to facilitate the staff to pull the limit rods synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a front view cutaway diagram of the present invention;

[0017] Figure 3 It is a cross-sectional view of the disassembly and assembly components of the present invention;

[0018] Figure 4 It is a schematic diagram of the anti-line-off assembly of the present invention.

[0019] In the figure: 1. positioning frame; 2. pulley; 3. tensioning wheel; 4. positioning block; 5. electric push rod; 6. side plate; 7. disassembly and assembly component; 71. fixed plate; 72. spring No. 1; 73. movable plate; 74. clamping block; 75. clamping plate; 76. trapezoidal block; 77. slider; 8. anti-offline component; 81. support plate; 82. support rod; 83. movable block; 84. fixed frame; 85. limit rod; 86. spring No. 2; 87. fixed column; 88. baffle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1

[0022] See also Figure 1-4 The present invention provides the following technical solutions: A high-precision weft positioning device for a water jet loom, comprising a positioning frame 1, a pulley 2 is symmetrically arranged on one side of the positioning frame 1, a positioning block 4 is arranged inside the positioning frame 1, a tensioning wheel 3 is arranged on one side of the positioning block 4, an electric push rod 5 is arranged on the upper end of the positioning block 4, a side plate 6 is arranged on the surface of the electric push rod 5, a disassembly assembly 7 is arranged on the upper end of the side plate 6, and an anti-line derailment assembly 8 is arranged on one side of the tensioning wheel 3.

[0023] Specifically, the disassembly and assembly component 7 includes a fixed plate 71, a No. 1 spring 72, a movable plate 73, a clamping block 74, a clamping plate 75, a trapezoidal block 76 and a slider 77, wherein a fixed plate 71 is symmetrically arranged at the upper end of the positioning frame 1, a No. 1 spring 72 is arranged on one side of the fixed plate 71, a movable plate 73 is arranged at one end of the No. 1 spring 72, a slider 77 is arranged at the lower end of the movable plate 73, a clamping block 74 is arranged on one side of the movable plate 73, a clamping plate 75 is arranged inside the clamping block 74, and a trapezoidal block 76 is arranged at the lower end of the clamping plate 75.

[0024] By adopting the above technical solution, when installing the electric push rod 5, the side plate 6 is moved downward so that it drives the trapezoidal block 76 to push the blocks 74 on both sides to move away from each other until the side plate 6 contacts the positioning frame 1, and the No. 1 spring 72 rebounds to push the movable plate 73 and the block 74, and the movable plate 73 drives the slider 77 to move inside the positioning frame 1, and makes the block 74 and the card plate 75 fit together, thereby completing the installation of the electric push rod 5.

[0025] Specifically, a limit block is disposed at the lower end of the slider 77, and a roller is disposed at the lower end of the limit block.

[0026] By adopting the above technical solution, when the slider 77 moves, the slider 77 drives the limit block to move, which can prevent the movable plate 73 from tilting when moving, and the roller can reduce the friction force of the limit block on the positioning frame 1.

[0027] Specifically, an inclined plate is symmetrically provided on one side of the trapezoidal block 76, and a fixed block is provided at the lower end of the inclined plate.

[0028] By adopting the above technical solution, when installing the electric push rod 5, the staff can make the side plate 6 slide downward close to one side of the inclined plate, which can prevent the side plate 6 from being misaligned in installation, resulting in the block 74 being unable to fit with the card plate 75.

[0029] When the present embodiment is in use, the side plate 6 is moved downward so that it drives the trapezoidal block 76 to push the blocks 74 on both sides to move apart until the side plate 6 contacts the positioning frame 1, and the No. 1 spring 72 rebounds to push the movable plate 73 and the block 74, and the movable plate 73 drives the slider 77 to move inside the positioning frame 1, and makes the block 74 and the clamping plate 75 fit together, thereby completing the installation of the electric push rod 5, and when the slider 77 moves, the slider 77 drives the limit block to move, which can prevent the movable plate 73 from tilting when moving, and the roller can reduce the friction force of the limit block on the positioning frame 1, and when installing the electric push rod 5, the staff can make the side plate 6 slide downward tightly against one side of the inclined plate, which can prevent the block 74 from being unable to fit with the clamping plate 75 due to misalignment of the side plate 6.

[0030] Example 2

[0031] The present embodiment is different from the embodiment 1 in that: specifically, the anti-offline assembly 8 includes a support plate 81, a support rod 82, a movable block 83, a fixed frame 84, a limiting rod 85, a No. 2 spring 86, a fixed column 87 and a baffle 88, wherein a support plate 81 is symmetrically arranged on the other side of the positioning frame 1, a support rod 82 is arranged at the lower end of the support plate 81, a movable block 83 is arranged on the surface of the support rod 82, a fixed frame 84 is arranged on one side of the movable block 83, a limiting rod 85 is symmetrically arranged inside the fixed frame 84, a No. 2 spring 86 is arranged on the surface of the limiting rod 85, a No. 2 spring 86 is arranged at one end of the No. 2 spring 86, and a baffle 88 is arranged inside the baffle 88.

[0032] By adopting the above technical solution, when preventing the weft yarn from falling off, the movable block 83 is moved along the support rod 82 to drive the fixed frame 84 to move, and at the same time, the baffle 88 is pulled to one side of the fixed frame 84, and the fixed frame 84 drives the limiting rod 85 and the baffle 88 and aligns the central opening of the baffle 88 with the fixed column 87. At this time, the baffle 88 is released, and the No. 2 spring 86 rebounds and pushes the baffle 88 so that its internal opening and the fixed column 87 are interlocked with each other, thereby allowing the baffle 88 to block the weft yarn and prevent the weft yarn from falling off.

[0033] Specifically, a stopper is disposed at one end of the limiting rod 85, and a connecting rod is disposed at one side of the stopper.

[0034] By adopting the above technical solution, when moving the baffle 88 , the staff can pull the connecting rod to pull the two stoppers and the two limit rods 85 , thereby achieving synchronous pulling of the two limit rods 85 .

[0035] When this embodiment is in use: the movable block 83 is moved along the support rod 82 to drive the fixed frame 84 to move, and at the same time, the baffle 88 is pulled to one side of the fixed frame 84, and the fixed frame 84 drives the limit rod 85 and the baffle 88 and aligns the central opening of the baffle 88 with the fixed column 87. At this time, the baffle 88 is released, and the No. 2 spring 86 rebounds and pushes the baffle 88 so that its internal opening and the fixed column 87 are interlocked with each other, thereby allowing the baffle 88 to block the weft yarn and prevent the weft yarn from falling off the line. When moving the baffle 88, the staff can pull the connecting rod to pull the two blocks and the two limit rods 85, so as to achieve the synchronous pulling of the two limit rods 85.

[0036] The structure and use principle of the positioning frame 1, pulley 2, tensioning wheel 3, positioning block 4, electric push rod 5 and side plate 6 in the present invention have been disclosed in a high-precision weft positioning device for a water jet loom disclosed in Chinese patent application number 202223098016.X.

[0037] Working principle and use process of the present invention: When the high-precision weft positioning device for a water jet loom is in use, the side plate 6 is moved downward to drive the trapezoidal block 76 to push the blocks 74 on both sides to move apart until the side plate 6 contacts the positioning frame 1, and the No. 1 spring 72 rebounds to push the movable plate 73 and the block 74, and the movable plate 73 drives the slider 77 to move inside the positioning frame 1, and makes the block 74 and the card plate 75 fit together, thereby completing the installation of the electric push rod 5. When installing the electric push rod 5, the staff can make the side plate 6 slide downward tightly against one side of the inclined plate to prevent the block 74 from being unable to fit into the card plate 75 due to misalignment of the side plate 6. When preventing the weft yarn from falling off the line, the movable block 83 is moved along the support rod 82 to drive the fixed frame 84 to move, and at the same time, the baffle 88 is pulled to one side of the fixed frame 84, and the fixed frame 84 drives the limiting rod 85 and the baffle 88 and aligns the central opening of the baffle 88 with the fixed column 87. At this time, the baffle 88 is released, and the No. 2 spring 86 rebounds and pushes the baffle 88 so that its internal opening and the fixed column 87 are mutually embedded, thereby allowing the baffle 88 to block the weft yarn and prevent the weft yarn from falling off the line. When moving the baffle 88, the staff can pull the connecting rod to pull the two blocks and the two limiting rods 85, so as to achieve the synchronous pulling of the two limiting rods 85.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision weft positioning device for a water jet loom, comprising a positioning frame (1), a pulley (2) is symmetrically arranged on one side of the positioning frame (1), a positioning block (4) is arranged inside the positioning frame (1), a tensioning wheel (3) is arranged on one side of the positioning block (4), an electric push rod (5) is arranged at the upper end of the positioning block (4), and a side plate (6) is arranged on the surface of the electric push rod (5), characterized in that: A disassembly assembly (7) is arranged at the upper end of the side plate (6), and an anti-line-off assembly (8) is arranged at one side of the tension wheel (3).

2. A high-precision weft positioning device for a water jet loom according to claim 1, characterized in that: The disassembly assembly (7) comprises a fixed plate (71), a No. 1 spring (72), a movable plate (73), a clamping block (74), a clamping plate (75), a trapezoidal block (76) and a sliding block (77), wherein the upper end of the positioning frame (1) is symmetrically provided with a fixed plate (71), one side of the fixed plate (71) is provided with a No. 1 spring (72), one end of the No. 1 spring (72) is provided with a movable plate (73), the lower end of the movable plate (73) is provided with a sliding block (77), one side of the movable plate (73) is provided with a clamping block (74), the interior of the clamping block (74) is provided with a clamping plate (75), and the lower end of the clamping plate (75) is provided with a trapezoidal block (76).

3. A high-precision weft positioning device for a water jet loom according to claim 2, characterized in that: A limit block is arranged at the lower end of the sliding block (77), and a roller is arranged at the lower end of the limit block.

4. A high-precision weft positioning device for a water jet loom according to claim 2, characterized in that: An inclined plate is symmetrically arranged on one side of the trapezoidal block (76), and a fixed block is arranged at the lower end of the inclined plate.

5. The high-precision weft positioning device for a water jet loom according to claim 1, characterized in that: The anti-offline assembly (8) comprises a support plate (81), a support rod (82), a movable block (83), a fixed frame (84), a limiting rod (85), a No. 2 spring (86), a fixed column (87) and a baffle (88), wherein a support plate (81) is symmetrically arranged on the other side of the positioning frame (1), a support rod (82) is arranged at the lower end of the support plate (81), a movable block (83) is arranged on the surface of the support rod (82), a fixed frame (84) is arranged on one side of the movable block (83), a limiting rod (85) is symmetrically arranged inside the fixed frame (84), a No. 2 spring (86) is arranged on the surface of the limiting rod (85), a No. 2 spring (86) is arranged at one end of the No. 2 spring (86), and a fixed column (87) is arranged inside the baffle (88).

6. A high-precision weft positioning device for a water jet loom according to claim 5, characterized in that: A stopper is provided at one end of the limiting rod (85), and a connecting rod is provided at one side of the stopper.

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