A high-performance spinning spindle for a three-dimensional knitting machine

Abstract

A high-performance walking spindle for a three-dimensional braiding machine belongs to a high-performance walking spindle. A core shaft is installed in the center hole of the base through a bearing; a one-way device is connected in the rotating sleeve, and the one-way device is connected to the core shaft through a key; a wire storage drum is fixedly connected outside the rotating sleeve, and a yarn tube is sleeved on the core shaft, and the yarn tube is located at the upper end of the rotating sleeve and in the wire storage drum; the upper end of the core shaft protrudes from the top of the wire storage drum, and a yarn tube limiting sleeve is connected to the upper end of the core shaft; a lantern spring is sleeved on the core shaft, and the lantern spring is located between the core shaft and the yarn tube; a vertical pole is fixed on one side of the base, and a guide wheel and a wire outlet wheel group are fixed on the vertical pole, and the guide wheel is located in the middle of the vertical pole; the wire outlet wheel group is located at the upper end of the vertical pole; a tension control device is provided at the upper end of the base, and one end of the tension control device is fixed on the base, and the other end is fixed on the inner wall of the wire storage drum. Advantages: saving manpower, improving quality and efficiency, and ensuring product stability. A three-dimensional braiding machine with a large stroke, constant tension, and uniform braiding pitch is achieved.

Description

Technical Field

[0001] The invention relates to a high-performance spinning spindle, in particular to a high-performance spinning spindle of a three-dimensional knitting machine. Background Art

[0002] At present, many three-dimensional braiding machines, when weaving preforms, have a problem that the outermost spindles and the innermost spindles have a length difference when weaving the preforms. This causes the inner spindles to have insufficient pay-off stroke, resulting in unsatisfactory braiding effects or even failure to braid. The high-speed spindles commonly used in braiding machines are usually Figure 4 As shown, it is provided with a spindle rod (2-1), a bobbin (2-2), a line sinker (2-3), a bobbin shaft (2-4), a middle porcelain eye (2-5), a line sinker porcelain eye (2-6), a line outlet porcelain eye (2-7), a brake pin shaft (2-8), a brake pin shaft transverse axis (2-9), and a flower plate (2-10). A bobbin shaft (2-4) is provided on the spindle bar (2-1), the bobbin (2-2) is sleeved on the bobbin shaft (2-4), a line sinker (2-3) is sleeved on the spindle bar (2-1), one end of the line sinker (2-3) is provided with a line sinker porcelain eye (2-6), and the spindle bar (2-1) is provided with a line outlet porcelain eye (2-7). During operation, the yarn passes through the porcelain eye (2-5) in the middle of the spindle bar, and then passes through the line sinker porcelain eye (2-6) for bending, and is released through the line outlet porcelain eye (2-7). During operation, the yarn lifts the line sinker porcelain eye (2-6), and the other end of the line sinker (2-3) presses down the brake cutting shaft cross pin (2-9) to make the brake cutting shaft (2-8) slide down and separate from the teeth of the flower disk (2-10), and the bobbin (2-2) rotates, thereby achieving the purpose of releasing the line. It makes it weave in a cycle, but its disadvantages are: large spindle friction, laborious line release, short line sinker travel, which makes the weaving uneven, large brake gap, loud noise, and fine yarn is easy to break, which affects the weaving quality and cannot improve production efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a high-performance running spindle for a three-dimensional braiding machine, so as to solve the problems of insufficient travel and uneven wire laying of the existing running spindle when the three-dimensional braiding machine is used to weave a preform.

[0004] The object of the present invention is achieved as follows: the high-performance walking spindle comprises: a base, a rotating sleeve, a wire storage drum, a vertical rod, a core shaft, a bobbin, a bobbin limiting sleeve, a guide wheel, a wire outlet wheel group, a one-way device, a tension control device and a lantern spring;

[0005] A core shaft is installed in the center hole of the base through a bearing, and the core shaft can rotate on the base;

[0006] A one-way device is connected inside the rotating sleeve and is connected to the mandrel through a key, so that the mandrel can only rotate in one direction;

[0007] A wire storage drum is fixedly connected to the outside of the rotating sleeve, a yarn tube is sleeved on the core shaft, and the yarn tube is located at the upper end of the rotating sleeve and inside the wire storage drum; the upper end of the core shaft protrudes from the top of the wire storage drum, and a yarn tube limiting sleeve is connected to the upper end of the core shaft;

[0008] A lantern spring is sleeved on the core shaft and is located between the core shaft and the yarn tube;

[0009] The vertical pole is fixed on one side of the base, and a guide wheel and a discharge wheel group are fixed on the vertical pole. The guide wheel is located in the middle of the vertical pole, and the guide wheel rotates as the yarn is released; the discharge wheel group is located at the upper end of the vertical pole and can rotate on the vertical pole;

[0010] A tension control device is arranged at the upper end of the base, one end of which is fixed on the base and the other end is fixed on the inner wall of the wire storage drum; under the action of the tension control device, the wire storage drum will rotate while keeping a constant tension when releasing the wire.

[0011] The one-way device is a one-way clutch, a one-way bearing or a one-way limiter.

[0012] The tension control device is a spiral spring, a tension controller, a tension sleeve or a torque micro motor.

[0013] Beneficial effect: Due to the adoption of the above solution, the core shaft installed on the base can rotate on the base.

[0014] The rotating sleeve, bobbin, and bobbin limiting sleeve are installed on the mandrel in sequence. The lantern spring is sleeved on the mandrel and the bobbin is sleeved on the lantern spring. The wire guide wheel and the outlet wheel group are fixed on the vertical pole, and the outlet wheel group can rotate on the vertical pole, and the vertical pole is fixed on the base. The storage drum is fixed on the rotating sleeve and connected together, and a tension control device is installed on the upper end of the base, one end of the tension control device is fixed on the base, and the other end is fixed on the rotating sleeve. In this way, when the storage drum 3 rotates, it can maintain constant tension rotation.

[0015] A one-way device is installed inside the rotating sleeve, one end of which is connected to the core shaft key, so that the core shaft can only rotate in one direction.

[0016] Fill the bobbin with yarn, then install the bobbin on the core shaft, block the bobbin with a bobbin limit sleeve, pull out one end of the yarn on the bobbin, pass it through the slot on the storage barrel, pass through the guide wheel and enter the outlet wheel group, and then the yarn comes out of the outlet wheel group.

[0017] When the storage drum rotates to release and retract the yarn, the yarn is wound around the storage drum for multiple turns. When the walking spindle is weaving, the yarn on the storage drum will pull the storage drum to rotate. At this time, the storage drum is in the storage drum release direction T1. When the walking spindle movement produces a yarn stroke difference, the tension control device will control the rotation of the storage drum. At this time, the storage drum is in the storage drum take-up direction T2, and the bobbin will rotate at the same time as the storage drum take-up direction, which is the bobbin rotation direction T3.

[0018] The invention solves the problems of insufficient travel and uneven wire laying when the existing walking spindle is used to weave a preform on a three-dimensional weaving machine, thereby achieving the purpose of the invention.

[0019] Advantages: The present invention realizes the three-dimensional braiding machine and the braiding platform in the braiding preformed body, which cannot be completed by the ordinary walking spindle, and has the problems of large stroke, constant tension and uniform braiding pitch. It saves manpower, improves quality, improves efficiency and ensures the stability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view structural diagram of the high-performance running spindle of the present invention.

[0021] Figure 2 It is a side structural diagram of the high-performance running spindle of the present invention.

[0022] Figure 3 It is a top view of the structure of the high-performance running spindle of the present invention.

[0023] Figure 4 It is a schematic diagram of a common running spindle in the prior art.

[0024] In the figure, 1. base; 2. rotating sleeve; 3. wire storage drum; 4. vertical pole; 5. core shaft; 6. bobbin; 7. bobbin limiting sleeve; 8. wire guide wheel; 9. wire outlet wheel group; 10. one-way device; 11. tension control device; 12. lantern spring.

[0025] T1, the direction of the wire storage drum’s rotation for releasing the wire; T2, the direction of the wire storage drum’s rotation for taking up the wire; T3, the direction of the bobbin’s rotation. DETAILED DESCRIPTION

[0026] Embodiment 1: The high-performance walking spindle comprises: a base 1, a rotating sleeve 2, a wire storage drum 3, a vertical rod 4, a core shaft 5, a bobbin 6, a bobbin limiting sleeve 7, a guide wheel 8, a wire outlet wheel group 9, a one-way device 10, a tension control device 11 and a lantern spring 12;

[0027] A core shaft 5 is installed in the center hole of the base 1 through a bearing, and the core shaft 5 can rotate on the base 1;

[0028] A one-way device 10 is connected inside the rotating sleeve 2, and the one-way device 10 is connected to the core shaft 5 through a key, so that the core shaft 5 can only rotate in one direction;

[0029] A wire storage drum 3 is fixedly connected to the outside of the rotating sleeve 2, a bobbin 6 is sleeved on the core shaft 5, and the bobbin 6 is located at the upper end of the rotating sleeve 2 and inside the wire storage drum 3; the upper end of the core shaft 5 protrudes from the top of the wire storage drum 3, and a bobbin limiting sleeve 7 is connected to the upper end of the core shaft 5;

[0030] A lantern spring 12 is sleeved on the core shaft 5, and the lantern spring 12 is located between the core shaft 5 and the bobbin 6;

[0031] The vertical pole 4 is fixed to one side of the base 1, and a guide wheel 8 and a discharge wheel group 9 are fixed to the vertical pole 4. The guide wheel 8 is located in the middle of the vertical pole 4, and the guide wheel 8 rotates as the yarn is released; the discharge wheel group 9 is located at the upper end of the vertical pole 4 and can rotate on the vertical pole 4;

[0032] A tension control device 11 is provided at the upper end of the base 1, one end of the tension control device 11 is fixed to the base 1, and the other end is fixed to the inner wall of the wire storage drum 3; when the wire storage drum 3 rotates, the wire storage drum 3 will maintain constant tension rotation when releasing the wire under the action of the tension control device 11.

[0033] The one-way device 10 is a one-way clutch, a one-way bearing or a one-way limiter.

[0034] The tension control device 11 is a spiral spring, a tension controller, a tension sleeve or a torque micro motor.

[0035] When the yarn is used for weaving, the yarn is pulled out from the outlet wheel group 9. At this time, because the yarn passes through the wire storage barrel 3, the wire storage barrel 3 has tension due to the action of the tension control device 11. When the walking spindle crosses the inner and outer tracks and walks on the inner circle, the yarn release stroke is not enough, which will cause the walking spindle of the inner circle to have no tension when weaving and releasing. At this time, the wire storage barrel 3 on the walking spindle will give the wire storage barrel 3 a tension in the opposite direction due to the action of the tension control device 11, and the excess yarn will be wound around the wire storage barrel 3, so that the weaving yarn of the walking spindle will immediately have the release tension. At this time, the role of the one-way device 10 is that the bobbin 6 can only rotate simultaneously with the mandrel 5 in one direction, and its direction is opposite to the release direction of the wire storage barrel 3. Due to the expansion force of the lantern spring 12 on the bobbin 6, the bobbin 6 rotates by itself when releasing the wire, and the mandrel 5 does not move.

[0036] The wire storage drum 3 is fixed on the rotating sleeve 2 and connected together, and a tension control device 11 is installed on the upper end of the base 1, one end of the tension control device 11 is fixed on the base 1, and the other end is fixed on the rotating sleeve 2. In this way, when the wire storage drum 3 rotates, a constant tension rotation can be maintained.

[0037] When the wire storage drum 3 rotates, the yarn is wound around the wire storage drum 3 for multiple turns. When the spinning spindle is weaving, the yarn on the wire storage drum 3 will pull the wire storage drum 3 to rotate. Since the tension control device 11 controls the tension of the wire storage drum 3 when releasing the wire, the wire storage drum 3 will maintain a constant tension when rotating.

Claims

1. A high-performance walking spindle for a three-dimensional braiding machine, characterized by: The high-performance walking spindle includes: base, rotating sleeve, wire storage drum, upright pole, mandrel, bobbin, bobbin limiting sleeve, guide wheel, outlet wheel group, one-way device, tension control device and lantern spring; A core shaft is installed in the center hole of the base through a bearing, and the core shaft can rotate on the base; A one-way device is connected inside the rotating sleeve and is connected to the mandrel through a key, so that the mandrel can only rotate in one direction; A wire storage drum is fixedly connected to the outside of the rotating sleeve, a yarn tube is sleeved on the core shaft, and the yarn tube is located at the upper end of the rotating sleeve and inside the wire storage drum; the upper end of the core shaft protrudes from the top of the wire storage drum, and a yarn tube limiting sleeve is connected to the upper end of the core shaft; A lantern spring is sleeved on the core shaft and is located between the core shaft and the yarn tube; The vertical pole is fixed on one side of the base, and a guide wheel and a discharge wheel group are fixed on the vertical pole. The guide wheel is located in the middle of the vertical pole, and the guide wheel rotates as the yarn is released; the discharge wheel group is located at the upper end of the vertical pole and can rotate on the vertical pole; A tension control device is provided at the upper end of the base, one end of which is fixed on the base, and the other end is fixed on the inner wall of the wire storage drum; under the action of the tension control device, the wire storage drum will maintain constant tension when releasing the wire; Fill the bobbin with yarn, then install the bobbin on the core shaft, block the bobbin with the bobbin limit sleeve, pull out one end of the yarn on the bobbin, and then pass it through the slot on the storage barrel, pass through the guide wheel and enter the outlet wheel group, and then the yarn comes out from the outlet wheel group; When the wire storage drum rotates to reel in and release the wire, the yarn is wound around the wire storage drum for multiple turns. When the walking spindle is weaving, the yarn on the wire storage drum will pull the wire storage drum to rotate. At this time, the wire storage drum is in the wire storage drum releasing direction T1. When the walking spindle movement produces a yarn stroke difference, the tension control device will control the wire storage drum to rotate. At this time, the wire storage drum is in the wire storage drum taking-up direction T2, and the yarn tube will rotate simultaneously with the wire storage drum taking-up direction, which is the yarn tube rotation direction T3.

2. The high-performance spinning spindle of a three-dimensional knitting machine according to claim 1, characterized in that: The one-way device is a one-way clutch, a one-way bearing or a one-way limiter.

3. The high-performance spinning spindle of a three-dimensional knitting machine according to claim 1 is characterized by: The tension control device is a spiral spring, a tension controller, a tension sleeve or a torque micro motor.

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