A sinker device for a braiding machine

Abstract

The present invention proposes a sinker device for a braiding machine, comprising: a sinker steel ring, the sinker steel ring is fixed on the outside of a drop tube (6) of the braiding machine, the sinker steel ring has a sinker gap (51) with an undulating structure, the sinker gap (51) is used to accommodate the lower end of the sinker (1) of the braiding machine; a guide ring, the guide ring is arranged on the outside of the sinker steel ring, the guide ring has a groove, the groove is used for the upper end of the sinker (1) of the braiding machine to pass through; a lifting control unit, used to control the lifting of the drop tube (6) to drive the sinker (1) to lift; a rotating unit, used to control the rotation of the drop tube (6) to drive the sinker (1) to swing. The present invention expands the sinker and the sinker wire inlet inside and outside through the sinker gap, so as to change the wire inlet position back and forth, and can meet the weaving requirements of different fabrics.

Description

Technical Field

[0001] The present invention relates to parts for a weaving machine, and more particularly to a sinker device for a weaving machine. Background Art

[0002] In a loom, a sinker is arranged next to each needle. The sinker is an important component that helps the coil to form a loop. The sinker is controlled by a control device to change its pressing position, thereby generating pressure on the coil to help form a loop. However, in existing circular knitting machines, the actions that the sinker can perform are relatively simple, which greatly limits the application scope of the loom. Summary of the invention

[0003] The object of the present invention is to provide a sinker device for a circular knitting machine that can meet the knitting requirements of different fabrics. In order to achieve the above object, the technical solution of the present invention is as follows: a sinker device for a circular knitting machine, comprising a sinker arranged in the gap between each knitting needle, the lower end of the sinker is arranged in the needle track of the sinker triangle, a sinker guide mechanism is arranged on the outside of the sinker triangle, the sinker passes through the guide mechanism, a drop tube is arranged on the inside of the sinker triangle, and the bottom of the drop tube is lifted and rotated back and forth by a control mechanism, thereby driving the sinker to lift and swing back and forth. Controlling the relative height of the sinker can meet the knitting requirements of different fabrics, and controlling the rotation of the sinker triangle, in conjunction with the restriction of the guide mechanism, can realize the action of the sinker to assist in looping.

[0004] The present invention proposes a sinker device for a braiding machine, comprising: a sinker steel ring, which is fixed on the outside of a drop tube of the braiding machine, and has a sinker gap with an undulating structure, and the sinker gap is used to accommodate the lower end of the sinker of the braiding machine; a guide ring, which is arranged on the outside of the sinker steel ring, and has a groove, and the groove is used for the upper end of the sinker of the braiding machine to pass through; a lifting control unit, which is used to control the lifting and lowering of the drop tube to drive the sinker to lift and lower; a rotating unit, which is used to control the rotation of the drop tube to drive the sinker to swing.

[0005] Optionally, the sinking steel ring includes: an upper sinking steel ring, which is arranged on the outside of the falling object tube; and a lower sinking steel ring, which is arranged on the outside of the falling object tube and is spaced a certain distance from the upper sinking steel ring to form an undulating sinking gap, wherein along the sinking gap, sinking protrusions and sinking depressions are respectively arranged at the relative positions of the upper sinking steel ring and the lower sinking steel ring.

[0006] Optionally, the guide ring comprises: an inner guide ring, which is arranged on the outer side of the sinker steel ring and has a second groove thereon for accommodating the sinker; an outer guide ring, which is arranged on the outer side of the inner guide ring and has a first groove thereon for accommodating the sinker;

[0007] Optionally, the upper end of the object-dropping tube has a object-dropping tube bell mouth, and the sinker is arranged outside the object-dropping tube bell mouth.

[0008] Optionally, the lower end of the sinker has a sinker protrusion, the upper end of the sinker has a wire hook, the sinker protrusion is located in the sinker gap, and the wire hook passes through the groove on the guide ring.

[0009] Optionally, the lifting control unit comprises: a motor and a first transmission device, the first transmission device is connected to the bottom of the object dropping tube, and the motor can drive the first transmission device to lift the object dropping tube.

[0010] Optionally, the transmission device includes: a first gear, the first gear is connected to the output shaft of the motor; a second gear, the second gear is coupled to the first gear; and a gear seat, one end of the gear seat is coupled to the second gear, and the other end is coupled to the drop tube.

[0011] Optionally, the rotating unit comprises: a cylinder, a second transmission device and a locking ring, the second transmission device is connected between the cylinder and the locking ring, the locking ring is connected to the object dropping tube, and the cylinder drives the second transmission device and the locking ring to rotate the object dropping tube.

[0012] Optionally, the second transmission device includes: a first rotating connecting rod and a second rotating connecting rod connected together, the first rotating connecting rod is also connected to the cylinder, and the second rotating connecting rod is also connected to the telescopic locking ring.

[0013] Optionally, when the lifting control unit lifts the object-dropping barrel to a certain position, the locking ring and the object-dropping barrel are locked, and the cylinder pushes the locking ring to swing via the second transmission device.

[0014] The present invention has the following advantages: the resistance caused by the sinker triangle is small, the structure of related parts is simple, and it is convenient to replace a single sinker. The force exerted by the sinker on the yarn is small, and there is no risk of wire breakage. The sinker can be expanded inward and outward by controlling the lifting and lowering guidance of the drop tube. This action coordination is mainly aimed at the different thicknesses of woven fabrics and different thicknesses of yarns in the textile industry, and the looping and unlooping of the woven fabrics are reasonably adjusted to the best and most suitable positions, thereby meeting the market's different product demands and high-quality textile fabrics. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the present invention more easily understood, the present invention will be described in more detail by referring to the specific embodiments shown in the accompanying drawings. These drawings only depict typical embodiments of the present invention and should not be considered as limiting the scope of protection of the present invention.

[0016] Figure 1 is a schematic diagram of the present invention;

[0017] Figure 2 It is a schematic diagram of the subsidence triangle and the guiding mechanism;

[0018] Figure 3 is an exploded view of the upper half of the circular loom sinker device of the present invention;

[0019] Figure 4 It is a structural diagram of the sinker.

[0020] Description of symbols

[0021] Sinker 1, sinker protrusion 111, wire hook 112, outer guide ring 2, first groove 21, inner guide ring 3, second groove 31, inner guide ring edge 32, upper sinking steel ring 4, lower sinking steel ring 5, sinking gap 51, sinking protrusion 52, sinking depression 53, drop tube 6, drop tube bell mouth 61, gear seat 7, threaded outer ring 8, first rotating connecting rod 9, second rotating connecting rod 10, cylinder 11, motor 12, first gear 13, second gear 14, locking ring 15, motor fixing plate 16, positioning rod 17, connecting rod 18. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention with reference to the accompanying drawings, wherein the same components are denoted by the same reference numerals. In the absence of conflict, the following embodiments and the technical features in the embodiments may be combined with each other.

[0023] The design principle of the present invention is to set the lower end of the sinker in the needle track of the sinker triangle, a sinker guide mechanism is provided on the outside of the sinker triangle, the sinker passes through the guide mechanism, a drop tube is provided on the inside of the sinker triangle, and the bottom of the drop tube is lifted and rotated back and forth through a control mechanism, thereby driving the lifting and lowering of the sinker triangle and the swinging of the two convex points of the sinker triangle to restrain the sinker from expanding inwards and outwards and the sinker wire inlet port to change the wire feed position back and forth.

[0024] Figure 1 A perspective view of a circular loom sinker device according to the present invention is shown. Figure 2 A magnified detail is shown.

[0025] Figure 3 An exploded view of the upper half is shown.

[0026] like Figure 2-Figure 3As shown, the outer side of the bell mouth 61 of the drop tube is wrapped with an upper sinking steel ring 4, and a lower sinking steel ring 5 is arranged at a certain distance below the upper sinking steel ring 4. The upper sinking steel ring 4 and the lower sinking steel ring 5 form a sinking triangle, and a sinking gap 51 is left between the two as a needle track (see Figure 3 ). A plurality of sinkers 1 are evenly arranged on the outer side of the bell mouth 61 of the upper end of the drop tube 6, and the protrusion 111 of the sinker 1 is located in the settlement gap 51. When the drop tube 6 rotates, driving the upper settlement steel ring 4 and the lower settlement steel ring 5 to rotate, the settlement gap 51 fluctuates, so that the sinker 1 in the settlement gap 51 is lifted up or dropped. The ups and downs of the settlement gap 51 can be formed as follows: the upper settlement steel ring 4 and the lower settlement steel ring 5 are respectively provided with a settlement convex point 52 and a settlement concave point 53 at the opposite positions.

[0027] An inner guide ring 3 is arranged outside the upper sinking steel ring 4 and the lower sinking steel ring 5, and an outer guide ring 2 is arranged outside the inner guide ring 3. An edge 32 extends outward from the lower end of the inner guide ring 3, so as to support the outer guide ring 2 located outside. Preferably, the width of the inner guide ring edge 32 is the same as the thickness of the outer guide ring 2. A second groove 31 corresponding to the sinker 1 is provided on the inner guide ring 3, and a first groove 21 corresponding to the sinker 1 is provided on the upper edge of the outer guide ring 2. Optionally, the inner guide ring 3 and the outer guide ring 2 can be formed in one piece.

[0028] Figure 4 The structure of the sinker is shown. The sinker 1 is an arc-shaped structure as a whole. A sinker protrusion 111 is provided at the lower end of the sinker 1. The protrusion 111 is located in the needle track, that is, the sinker gap 51. A wire hook 112 is provided at the upper end of the sinker 1. After loading, the sinker 1 is located between the sinker triangle and the inner guide ring 3. After the sinker 1 passes through the second groove 31 of the inner guide ring 3, the wire hook 112 of the sinker 1 is set in the first groove 21 of the outer guide ring 2.

[0029] When the drop tube 6 rotates to drive the sinker triangle composed of the upper sinker steel ring 4 and the lower sinker steel ring 5 to rotate or swing, the sinker 1, driven by the ups and downs of the needle trajectory (sinking gap 51), is restricted by the first groove 21 of the outer guide ring 2 and the second groove 31 of the inner guide ring 3, and swings back and forth in an arc. The sinker 1 expands inwards and outwards, and the wire inlet port of the sinker changes the wire inlet position back and forth, which can meet any weaving requirements of different fabrics.

[0030] Reference again Figure 1The circular loom sinker device of the present invention includes a control mechanism, which is located at the bottom of the object-dropping tube 6 and is used to control the lifting and reciprocating rotation of the object-dropping tube 6. The control mechanism includes a lifting control unit and a rotation unit. The lifting control unit includes: a first transmission device and a motor 12, and the first transmission device includes: a first gear 13, a second gear 14 and a gear seat 7. The motor 12 is located below the motor fixing plate 16 and fixed on the motor fixing plate 16.

[0031] The gear seat 7 is sleeved on the outside of the object dropping tube 6, and the two are coupled together. In one embodiment, a threaded outer ring 8 is provided on the outside of the bottom of the object dropping tube 6, and the gear seat 7 has a threaded inner ring, and the gear seat 7 and the object dropping tube 6 are combined together by threading.

[0032] The outer ring of the gear seat 7 is provided with a second gear 14, and the output shaft of the motor 12 is provided with a first gear 13, which meshes with the second gear 14, and the diameter of the first gear 13 is much smaller than the diameter of the second gear 14. The motor 12 rotates through the first gear 13, drives the second gear 14 to rotate, drives the gear seat 7 to rotate, and finally drives the drop tube 6 to rotate. The threaded inner ring of the gear seat 7 meshes with the threaded outer ring 8 of the drop tube 6. When the gear seat 7 rotates, it can drive the drop tube 6 to rise and fall, thereby changing the internal and external expansion degree of the sinker 1.

[0033] The rotation unit of the control mechanism includes: a cylinder 11 and a second transmission device, and the second transmission device includes a first rotating connecting rod 9 and a second rotating connecting rod 10. The piston rod of the cylinder 11 is connected to the first rotating connecting rod 9, the first rotating connecting rod 9 is connected to the second rotating connecting rod 10, and the second rotating connecting rod 10 is connected to the locking ring 15 at the lower end of the drop tube 6 through a connecting rod 18.

[0034] After the lifting of the drop tube 6 is adjusted by the motor 12, the relative position of the sinker 1 is adjusted, the locking ring 15 is locked, and the drop tube 6 is driven to rotate by the cylinder 11, thereby rotating the sinker triangle.

[0035] Preferably, the amplitude of the cylinder 11 pushing the locking ring 15 is adjusted by the positioning rod 17, and the positioning rod 17 is installed under the motor fixing plate 16. When the locking ring 15 rotates to a certain amplitude, the locking ring 15 is blocked, so that the locking ring 15 swings back and forth.

[0036] The embodiments described above are only preferred specific implementations of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A sinker device for a braiding machine, characterized in that: include: A sinking steel ring, the sinking steel ring being fixed on the outside of a drop tube (6) of a braiding machine, the sinking steel ring comprising: an upper sinking steel ring (4), the upper sinking steel ring (4) being fixed on the outside of the drop tube (6); and a lower sinking steel ring (5), the lower sinking steel ring (5) being fixed on the outside of the drop tube (6) and being spaced a certain distance from the upper sinking steel ring (4) to form an undulating sinking gap (51), wherein a sinking protrusion (52) and a sinking recess (53) are respectively arranged along the sinking gap (51) at relative positions of the upper sinking steel ring (4) and the lower sinking steel ring (5), the sinking gap (51) being used to accommodate the lower end of a sinker (1) of the braiding machine, the lower end of the sinker (1) having a sinker protrusion (111), the upper end of the sinker (1) having a wire hook (112), and the sinker protrusion (111) being located in the sinking gap (51); A guide ring, the guide ring being arranged on the outside of the sinker steel ring, the guide ring having a groove, the groove being used for the wire hook (112) at the upper end of the sinker (1) of the braiding machine to pass through, the guide ring comprising: an inner guide ring (3), the inner guide ring (3) being arranged on the outside of the sinker steel ring, the inner guide ring (3) having a second groove (31) for accommodating the sinker (1); an outer guide ring (2), the outer guide ring (2) being arranged on the outside of the inner guide ring (3), the outer guide ring (2) having a first groove (21) for accommodating the sinker (1); A lifting control unit, used for controlling the lifting of the object dropping tube (6) to drive the sinker (1) to lift and lower, the lifting control unit comprising: a motor (12) and a first transmission device, the first transmission device being connected to the bottom of the object dropping tube (6), the motor (12) being able to drive the first transmission device to lift and lower the object dropping tube (6); The transmission device comprises: a first gear (13), the first gear (13) being connected to the output shaft of the motor (12); a second gear (14), the second gear (14) being coupled to the first gear (13); a gear seat (7), one end of the gear seat (7) being coupled to the second gear (14), and the other end being coupled to the object dropping tube (6); The rotating unit is used to control the rotation of the object dropping cylinder (6) to drive the sinker (1) to swing. The sinker (1) is driven by the sinking gap (51) and is restricted by the first groove (21) of the outer guide ring (2) and the second groove (31) of the inner guide ring (3) to swing back and forth in an arc shape, so that the sinker (1) expands inwards and outwards.

2. The sinker device of a braiding machine according to claim 1, characterized in that: The upper end of the object dropping tube (6) is provided with a object dropping tube bell mouth (61), and the sinker (1) is arranged outside the object dropping tube bell mouth (61).

3. The sinker device of a braiding machine according to claim 1, characterized in that: The rotating unit comprises: a cylinder (11), a second transmission device and a locking ring (15); the second transmission device is connected between the cylinder (11) and the locking ring (15); the locking ring (15) is connected to the object dropping tube (6); the cylinder (11) drives the second transmission device and the locking ring (15) to rotate the object dropping tube (6).

4. The sinker device of a braiding machine according to claim 3, characterized in that: The second transmission device comprises: A first rotating connecting rod (9) and a second rotating connecting rod (10) are connected together; the first rotating connecting rod (9) is also connected to a cylinder (11); and the second rotating connecting rod (10) is also connected to a telescopic locking ring (15).

5. The sinker device of a braiding machine according to claim 3, characterized in that: When the lifting control unit lifts the object-dropping barrel (6) into position, the locking ring (15) and the object-dropping barrel (6) are locked, and the cylinder (11) pushes the locking ring (15) to swing via the second transmission device.

Images