Yarn tension control device for yarn conveyor of knitting machine

Abstract

The utility model discloses a yarn tension control device for a yarn conveyor of a knitting machine, which belongs to a knitting mechanical part and comprises a knob, a dial, a left oscillating bar, a right oscillating bar, a torsion spring, a fixed seat, a pressure spring, a pressure spring cover, a rear cover, a yarn guide support and the like. The top of the knob is provided with an indicating arrow, an indicating part is provided with a pointer, and the tail is provided with a torsion spring clamping groove; a rotation direction indicating arrow and scale numbers are arranged in front of the dial; the left swing rod and the right swing rod are each provided with three staggered square holes, and the six square ceramic pieces are perpendicularly inserted into the square holes. Cylindrical pins are arranged at the inner end of the rotary knob and the back face of the dial, a clamping groove is formed in the tail end of the cylindrical pin at the inner end of the rotary knob, the center end of the torsion spring is fixed in the clamping groove, the other end of the torsion spring is connected to the right swing rod or the left swing rod, and when the rotary knob is rotated, the right swing rod and the left swing rod can be driven to swing to adjust yarn tension. The yarn tension control device is convenient to operate and controls yarn tension.

Description

Technical Field

[0001] The utility model relates to a yarn tension control device of a yarn feeder of a knitting machine, belonging to a knitting machine component. Background Art

[0002] Some knitting machine yarn feeder yarn tension control devices currently in use have an adjusting wheel for adjusting the yarn tension, which is set at the back of the tension control device or behind the front yarn; when adjusting the tension, the hand must reach behind the tension control device, and the hand can easily touch the high-speed rotating transmission belt and transmission pulley, posing a safety hazard and limiting the viewing angle; the adjusting wheel is set behind the front yarn, and when the index finger and thumb are used to rotate the adjusting wheel for adjusting the yarn tension, it is also easy to touch the high-speed running yarn, and the hand can easily block the line of sight, affecting the operation. Summary of the Invention

[0003] The purpose of the utility model is to provide a yarn tension control device for a yarn feeder of a knitting machine. By improving the structure of the existing yarn tension control device of the yarn feeder, the structure is made more reasonable, the tension adjustment is more convenient, the tension indicating scale is more convenient to observe, and the operation is convenient for personnel, thereby ensuring the stability of the tension of the conveyed yarn and improving the quality of the fabric.

[0004] The utility model is completed through the following technical solutions:

[0005] A yarn tension control device for a yarn feeder of a knitting machine comprises a knob, a dial, a left swing arm, a right swing arm, a left metal sleeve, a right metal sleeve, a torsion spring, a fixing seat, a gasket, a compression spring, a compression spring cover, an inner fixing screw, a rear cover, a nut, an outer fixing screw and a yarn guide bracket; an indication arrow is provided on the top of the knob, a pointer is provided on the indicating part, and a torsion spring slot is provided on the tail; a rotation direction indication arrow and scale numbers are provided in front of the dial, and a yarn guide ceramic eye is provided on the top of the dial; the left swing arm and the right swing arm are each provided with three staggered square holes, and six square ceramic pieces are vertically inserted into the square holes.

[0006] The utility model has a pointer on the knob, and when the knob is rotated, the pointer points to a scale number on the dial, and the smaller the number, the smaller the yarn tension, and the larger the number, the greater the yarn tension.

[0007] The inner end of the knob and the back of the dial of the utility model are provided with cylindrical pins, the left swing rod and the right swing rod are sleeved on the two cylindrical pins, and two metal sleeves are added to the cylindrical pins to reduce friction.

[0008] The right swing rod and the left swing rod of the utility model are provided with a plurality of teeth which can make them swing synchronously.

[0009] The end of the cylindrical pin of the knob of the utility model is provided with a slot, the center end of the torsion spring is fixed in the slot, and the other end is connected to the right swing rod or the left swing rod. When the knob is rotated, the torsion spring is twisted, and the other end of the torsion spring drives the right swing rod or the left swing rod to swing. The yarn tension decreases when the knob is rotated clockwise, and increases when the knob is rotated counterclockwise. The scale numbers and arrows on the dial serve to indicate the size of the yarn tension. When the knob is rotated to the same scale, the yarn tension of each route on the same machine can be made the same.

[0010] Compared with the prior art, the utility model has a simple structure, is easy to operate, and has clear observation and indication. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structural decomposition of the present utility model.

[0012] Figure 2 It is a schematic diagram of the back of the dial of the utility model.

[0013] Figure 3 It is a schematic diagram of the back side of the fixing seat of the utility model.

[0014] Figure 4 This is a schematic diagram of the utility model in a state of minimum tension.

[0015] Figure 5 It is a schematic diagram of the working state of the utility model.

[0016] Figure 6 This is a schematic diagram of the assembly of the utility model and a yarn feeder. DETAILED DESCRIPTION

[0017] The utility model is described in detail below with reference to the accompanying drawings:

[0018] Figure 1The figure is a schematic diagram of the structure decomposition of the utility model, which is a yarn tension control device for a knitting machine yarn feeder, comprising a knob (1), a dial (2), a left swing rod (4), a right swing rod (5), a left metal sleeve (7), a right metal sleeve (8), a torsion spring (9), a fixing seat (10), a gasket (11), a compression spring (12), a compression spring cover (13), an inner fixing screw (14A, 14B, 14C, 14D), a rear cover (15), nuts (16A, 16B), outer fixing screws (19A, 19B) and a yarn guide bracket (17); an indicating arrow (1 is provided on the top of the knob (1). A), the indicating part has a pointer (1B), and the tail has a torsion spring slot (1C); the center end of the torsion spring (9) is stuck in the torsion spring slot (1C), and the tail extends to the rear of the right swing rod (5); the gasket (11), the compression spring (12), and the compression spring cover (13) are fixed to the tail of the knob (1) passing through the fixed seat (10) with an internal fixing screw (14B); the front of the scale (2) is provided with a rotation direction indicating arrow (2E), and the upper part is provided with a yarn guide ceramic eye (3); the square ceramic pieces (6A, 6B, 6C, 6D, 6E, 6F) are vertically inserted into the square holes on the staggered left swing rod (4) and the right swing rod (5).

[0019] Figure 2 The figure shows a schematic diagram of the back of the dial (2) of the present invention. The back of the dial (2) is provided with cylindrical pins (2A, 2D, 2C) and a circular hole (2B) on the dial. Figure 1 The left swing rod (4) and the left metal sleeve (7) shown are respectively mounted on the cylindrical pin (2D), and the end of the knob (1) is inserted into the circular hole (2B) on the dial and then passed through the right swing rod (5) and the right metal sleeve (8).

[0020] Figure 3 , which is a schematic diagram of the back of the fixing seat (10) of the present invention, wherein the upper portion of the fixing seat (10) is provided with circular holes (10A, 10B, 10C, 10D) on the fixing seat; Figure 1 The scale plate (2) shown is fixed to the fixing base (10) by internal fixing screws (14A, 14C), and the back cover (15) is covered on the back of the fixing base (10).

[0021] Figure 4 As shown, it is a schematic diagram of the minimum tension state of the utility model. When the yarn is threaded, it is adjusted to this state. The square ceramic pieces (6A, 6B, 6C) on the left swing arm (4) and the square ceramic pieces (6D, 6E, 6F) on the right swing arm (5) are arranged in a straight line, which is convenient for threading the yarn; the yarn guide bracket (17) is fixed to the lower part of the fixed seat (10), and the yarn guide bracket (17) is provided with a bracket yarn guide porcelain eye (18).

[0022] Figure 5The figure shows a schematic diagram of the working state of the present invention. After the yarn passes through the yarn guide eye (3) on the upper part of the scale plate (2), it passes through the six square ceramic pieces (6A, 6B, 6C, 6D, 6E, 6F) arranged in an upper and lower staggered manner on the left swing rod (4) and the right swing rod (5), and the bracket yarn guide eye (18) provided on the yarn guide bracket (17); when the tension needs to be adjusted, the knob (1) is rotated, and the knob (1) drives the left swing rod (4) and the right swing rod (5) to swing. Since the left swing rod (4) and the right swing rod (5) are meshed and linked with each other, when the knob (1) is rotated, the left and right swing rods can be driven to relatively open or close together, thereby controlling the angle of the left and right swing rods to open, so that the yarn tension can be adjusted.

[0023] Figure 6 The figure shows an assembly diagram of the present invention and a yarn feeder. The present invention is fixed to the yarn feed bracket (21) of the yarn feeder (20) by external fixing screws (19A, 19B), and can cooperate with the yarn feeder (20) to achieve reliable yarn tension control.

Claims

1. A yarn tension control device for a yarn feeder of a knitting machine, comprising a knob (1), a dial (2), a left swing lever (4), a right swing lever (5), a left metal sleeve (7), a right metal sleeve (8), a torsion spring (9), a fixing seat (10), a gasket (11), a compression spring (12), a compression spring cover (13), inner fixing screws (14A, 14B, 14C, 14D), a rear cover (15), nuts (16A, 16B), outer fixing screws (19A, 19B) and a yarn guide bracket (17); characterized in that, The knob (1) is rotated, and the knob (1) drives the left swing rod (4) and the right swing rod (5) to swing, thereby controlling the angle of the left and right swing rods to adjust the yarn tension.

2. The yarn tension control device for a yarn feeder of a knitting machine according to claim 1, characterized in that: The top of the knob (1) is provided with an indicating arrow (1A), the indicating portion is provided with a pointer (1B), and the tail portion is provided with a torsion spring slot (1C); the center end of the torsion spring (9) is clamped into the torsion spring slot (1C), and the tail end extends to the rear of the right swing rod (5); the gasket (11), the compression spring (12), and the compression spring cover (13) are fixed to the tail portion of the knob (1) passing through the fixing seat (10) by an internal fixing screw (14B).

3. The yarn tension control device for a yarn feeder of a knitting machine according to claim 1, characterized in that: A rotation direction indicating arrow (2E) is provided on the front of the scale plate (2), and a yarn guide porcelain eye (3) is provided on the upper portion; cylindrical pins (2A, 2D, 2C) and a circular hole (2B) on the scale plate are provided on the back of the scale plate (2); a left swing rod (4) and a left metal sleeve (7) are respectively sleeved on the cylindrical pin (2D), and the end of the knob (1) is inserted into the circular hole (2B) on the scale plate and then inserted into the right swing rod (5) and the right metal sleeve (8).

4. The yarn tension control device for a yarn feeder of a knitting machine according to claim 1, characterized in that: The upper portion of the fixing seat (10) is provided with circular holes (10A, 10B, 10C, 10D) on the fixing seat; the dial (2) is fixed to the fixing seat (10) by internal fixing screws (14A, 14C), and the back cover (15) is covered on the back of the fixing seat (10).

5. The yarn tension control device for a yarn feeder of a knitting machine according to claim 1, characterized in that: The square ceramic pieces (6A, 6B, 6C, 6D, 6E, 6F) are vertically inserted into the square holes on the staggered left pendulum rod (4) and the right pendulum rod (5).

6. The yarn tension control device for a yarn feeder of a knitting machine according to claim 1, characterized in that: The yarn guide bracket (17) is fixed to the lower part of the fixing seat (10), and a bracket yarn guide porcelain eye (18) is provided on the yarn guide bracket (17).

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