An electric yarn feeder

Abstract

This utility model relates to a yarn feeder, and more particularly to an electric yarn feeder, comprising: a yarn feeder base; an external rotor motor mounted on the yarn feeder base; a yarn storage wheel mounted on the external rotor motor; a yarn feeding assembly located at one end of the yarn feeder base and opposite to the yarn storage wheel; a yarn feeding sensor located on the yarn feeding assembly; a yarn discharging assembly located at the other end of the yarn feeder base and opposite to the yarn storage wheel; and a yarn discharging sensor located on the yarn discharging assembly. The electric yarn feeder provided by this utility model directly drives the yarn storage wheel to rotate via the external rotor motor, achieving free adjustment of the yarn feeding length. The overall structure is simple and easy to control.

Description

Technical Field

[0001] This utility model relates to a yarn feeder, and more particularly to an electric yarn feeder. Background Technology

[0002] Existing yarn feeders all use a motor in conjunction with a synchronous belt and synchronous pulleys to drive multiple conveyors. The yarn feeder is equipped with a clutch, and there is a synchronous pulley at each end of the clutch. The clutch controls the start and stop of the yarn feeder. For example, a spandex yarn feeder disclosed in Chinese patent CN212560637U has a fixed length of yarn conveyed at the same time, and the length of yarn entering the circular knitting machine cannot be freely adjusted. Utility Model Content

[0003] To solve the above problems, this utility model provides an electric yarn feeder, the specific technical solution of which is as follows:

[0004] An electric yarn feeder includes: a yarn feeder base; an external rotor motor disposed on the yarn feeder base; a yarn storage wheel disposed on the external rotor motor; a yarn feeding assembly disposed at one end of the yarn feeder base and opposite to the yarn storage wheel; a yarn feeding sensor disposed on the yarn feeding assembly; a yarn discharging assembly disposed at the other end of the yarn feeder base and opposite to the yarn storage wheel; and a yarn discharging sensor disposed on the yarn discharging assembly.

[0005] Preferably, the yarn storage wheel includes: a yarn storage base disposed on the external rotor motor; yarn storage ceramic pieces arranged in a circular array on the yarn storage base; a yarn storage steel bowl disposed on the top of the yarn storage base and connected to the yarn storage ceramic pieces; a yarn storage top seat disposed on the yarn storage steel bowl and connected to the yarn storage base; and a yarn storage cover disposed on the yarn storage top seat and connected to the external rotor motor.

[0006] Preferably, the outer circular surface of the yarn storage base is provided with a plurality of axial fixing grooves in an annular array, the bottom of the yarn storage base is provided with a lower fixing ring, and the lower fixing ring is provided with a plurality of lower fixing grooves in an annular array, the lower fixing grooves communicating with the axial fixing grooves; the yarn storage steel bowl is provided with an upper fixing groove in an annular array, the upper fixing grooves corresponding one-to-one with the axial fixing grooves; wherein, the yarn storage ceramic piece is inserted into the axial fixing groove, and the top and bottom of the yarn storage ceramic piece are respectively inserted into the upper fixing groove and the lower fixing groove.

[0007] Furthermore, each of the lower fixing grooves is provided with a lower protrusion, which is used to press the yarn storage ceramic piece tightly into the lower fixing groove.

[0008] Preferably, the yarn storage base has a plurality of first connecting posts arranged in an internal annular array; the yarn storage top seat has a plurality of first connecting holes arranged in an annular array, and the first connecting holes are inserted into the first connecting posts.

[0009] Preferably, the upper fixing groove has upper protrusions on both sides, which are used to press the top of the yarn storage ceramic piece.

[0010] Preferably, the yarn storage top seat is provided with a plurality of second connecting posts in a circular array; the yarn storage steel bowl is provided with a plurality of second connecting holes in a circular array, and the second connecting posts are inserted into the second connecting holes.

[0011] Preferably, the outer circular surface of the yarn storage top seat is provided with a plurality of pressing blocks in an annular array, and the pressing blocks abut against the yarn storage steel bowl.

[0012] Preferably, the yarn feeding assembly includes: a yarn feeding plate disposed at one end of the yarn feeding seat, and one end connected to the yarn feeding sensor; a yarn feeding eye disposed at the other end of the yarn feeding plate; a yarn clamping unit disposed on the yarn feeding plate and located on one side of the yarn feeding eye; and a yarn clearing unit disposed on the yarn feeding plate and located between the yarn clamping unit and the yarn feeding sensor; the yarn exiting assembly includes: a yarn exiting plate disposed at the other end of the yarn feeding seat, and one end connected to the yarn exiting sensor; and a yarn exiting eye disposed at the other end of the yarn exiting plate.

[0013] Preferably, it also includes a fixing screw, which is disposed at one end of the yarn feeder and located on one side of the mounting groove of the yarn feeder.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The electric yarn feeder provided by this utility model directly drives the yarn storage wheel to rotate through an external rotor motor, thereby realizing free adjustment of the yarn feeding length. The overall structure is simple and easy to control. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this application;

[0017] Figure 2 This is a front view of this application;

[0018] Figure 3 This is a side view of this application;

[0019] Figure 4 It is a cross-sectional view along the axis of the yarn storage wheel;

[0020] Figure 5 This is an exploded view of the yarn storage wheel;

[0021] Figure 6 This is a schematic diagram of the yarn storage base;

[0022] Figure 7 This is a top view of the yarn storage base;

[0023] Figure 8 This is a schematic diagram of the structure of the yarn storage top seat. Detailed Implementation

[0024] The present invention will now be further described with reference to the accompanying drawings.

[0025] like Figures 1 to 8 As shown, an electric yarn feeder includes a yarn feeding base 1, an external rotor motor 2, a yarn storage wheel 3, a yarn feeding assembly 5, a yarn feeding sensor 4, a yarn discharging sensor 6, and a yarn discharging assembly 7. The yarn feeding assembly 5 and the yarn discharging assembly 7 are respectively fixed at both ends of the yarn feeding base 1. The external rotor motor 2 is fixed on the yarn feeding base 1 and located on one side of the yarn feeding assembly 5. The yarn storage wheel 3 is fixed on the external rotor motor 2. The yarn feeding sensor 4 is installed on the yarn feeding assembly 5 and is arranged opposite to the yarn storage wheel 3. The yarn discharging sensor 6 is installed on the yarn discharging assembly 7 and is arranged opposite to the yarn storage wheel 3. The yarn feeding sensor 4 and the yarn discharging sensor 6 are respectively located on both sides of the yarn storage wheel 3.

[0026] The external rotor motor 2 allows for free control of its rotational speed, which in turn enables precise control of the conveyed yarn length. This allows each conveyor to be independently controlled, accurately releasing each millimeter of yarn according to the pattern instructions. This avoids overfeeding common in traditional machinery, preventing waste caused by excessively long yarns and reducing production costs. Precise yarn delivery length ensures consistent fabric density and structure, thereby improving overall fabric quality. Freely controlling the yarn delivery length also helps maintain uniform yarn tension, preventing yarn breakage or fabric defects caused by uneven tension.

[0027] When changing colors in jacquard fabrics, only the required length of colored yarn is released, preventing yarn mixing and tangling. The conveying length is synchronized with the needle movement speed in real time, eliminating yarn breakage / holes caused by yarn slack or tightness.

[0028] The feed length is dynamically adjusted according to the different characteristics of cotton / spandex / carbon fiber to avoid elastic yarn shrinkage or hard yarn jamming.

[0029] Whether it's plain weaving, jacquard fabrics, or complex patterns, yarn feeders can meet different process requirements by precisely controlling the yarn feed length.

[0030] To facilitate the connection between the yarn storage wheel 3 and the external rotor motor 2, the yarn storage wheel 3 includes a yarn storage base 31, yarn storage ceramic plates 32, yarn storage steel bowls 33, a yarn storage top seat 34, and a yarn storage cover 35. The yarn storage base 31 is installed on the top of the external rotor of the external rotor motor 2; the yarn storage ceramic plates 32 are arranged in a ring array on the yarn storage base 31; the yarn storage steel bowl 33 is located on top of the yarn storage base 31 and connected to the yarn storage ceramic plates 32; the yarn storage top seat 34 is installed on the yarn storage steel bowl 33 and connected to the yarn storage base 31; the yarn storage cover 35 is installed on the yarn storage top seat 34 and connected to the external rotor motor 2 by screws. The yarn storage base 31 is made of plastic, and the yarn storage ceramic plates 32 are ceramic plates, which protect the yarn, are wear-resistant, and do not easily overheat. The yarn storage steel bowl 33 and the yarn storage cover 35 are both stamped steel plates. The yarn storage cover 35 presses the yarn storage base 31, the yarn storage ceramic plates 32, the yarn storage steel bowl 33, and the yarn storage top seat 34 together.

[0031] like Figure 4 As shown, the yarn storage top seat 34 has a stepped hole inside, the yarn storage cover 35 rests on the shoulder of the stepped hole, and is connected to the external rotor motor 2 by screws, so that the yarn storage top seat 34 fixes the yarn storage base 31 to the top of the external rotor motor 2 through the yarn storage steel bowl 33.

[0032] like Figure 7 As shown, the yarn storage base 31 can also be provided with a number of motor connection holes 315 in a circular array. The motor connection holes 315 are fixed to the top of the outer rotor motor 2 by screws. Since there are multiple motor connection holes 315, it can prevent slippage between the yarn storage base 31 and the outer rotor motor 2, so that the yarn storage base 31 can rotate synchronously with the outer rotor motor 2.

[0033] To improve the reliability of fixing the yarn storage ceramic plate 32 and prevent the yarn storage ceramic plate 32 from separating from the yarn storage base 31 during high-speed rotation, the outer circular surface of the yarn storage base 31 is provided with a number of axial fixing grooves 313 in an annular array. The bottom of the yarn storage base 31 is provided with a lower fixing ring 311, and the lower fixing ring 311 is provided with a number of lower fixing grooves 312 in an annular array. The lower fixing grooves 312 communicate with the axial fixing grooves 313. The yarn storage steel bowl 33 is provided with a middle fixing groove in an annular array, and the middle fixing grooves correspond one-to-one with the axial fixing grooves 313. The yarn storage top seat 34 is provided with an upper fixing ring 341, and the upper fixing ring 341 is provided with a number of upper fixing grooves 342 in an annular array. The upper fixing grooves 342 correspond one-to-one with the axial fixing grooves 313. The two ends of the yarn storage ceramic plate 32 are respectively inserted into the lower fixing groove 312, the upper fixing groove 342 and the middle fixing groove, and one side of the yarn storage ceramic plate 32 is inserted into the axial fixing groove 313. The top and bottom of the yarn storage ceramic plate 32 are fixed, which achieves fixation at both ends and can prevent axial and radial movement. The axial fixing groove 313 fixes and supports the yarn storage ceramic plate 32 in the length direction, preventing the yarn storage ceramic plate 32 from breaking.

[0034] To further improve the reliability of fixing the yarn storage ceramic piece 32 and reduce the impact of processing errors, each of the lower fixing grooves 312 is provided with a lower protrusion 316. The lower protrusion 316 is used to press the yarn storage ceramic piece 32 into the lower fixing groove 312. The lower protrusion 316 has a wedge structure and can deform under pressure, which not only facilitates installation, but also eliminates the gap between the yarn storage ceramic piece 32 and the lower fixing groove 312, thus eliminating the gap caused by processing errors.

[0035] To improve the reliability of the fixation between the yarn storage ceramic plate 32 and the upper fixing groove 342 and to eliminate gaps, upper protrusions 343 are symmetrically provided on both sides of the upper fixing groove 342. The upper protrusions 343 are used to press the top of the yarn storage ceramic plate 32. The upper protrusions 343 have a wedge-shaped structure and can deform under pressure, which not only facilitates installation but also eliminates the gap between the yarn storage ceramic plate 32 and the upper fixing groove 342, thus eliminating gaps caused by processing errors.

[0036] In order to enable the yarn storage base 31 and the yarn storage top seat 34 to rotate synchronously, the yarn storage base 31 has a number of first connecting posts 314 arranged in an internal annular array; the yarn storage top seat 34 has a number of first connecting holes 344 arranged in an annular array, and the first connecting holes 344 are inserted into the first connecting posts 314.

[0037] To facilitate the fixing of the yarn storage bowl 33 and to enable it to rotate with the yarn storage base 31, a plurality of second connecting posts 346 are arranged in a circular array on the yarn storage top seat 34; a plurality of second connecting holes 332 are arranged in a circular array on the yarn storage bowl 33, and the second connecting posts 346 are inserted into the second connecting holes 332. The second connecting holes 332 are connected to the first connecting holes 344, so that the yarn storage bowl 33 can rotate synchronously with the yarn storage base 31.

[0038] The outer circular surface of the yarn storage top seat 34 is provided with a plurality of clamping blocks 345, which abut against the yarn storage steel bowl 33. The clamping blocks 345 make it difficult for the yarn storage top seat 34 to separate from the yarn storage steel bowl 33, thereby improving the reliability of the connection.

[0039] The yarn feeding assembly 5 includes a yarn feeding plate 51, a yarn feeding eye 54, a yarn clamping unit 53, and a yarn clearing unit 52. The yarn feeding plate 51 is formed by bending or stamping a steel plate and is fixed to one end of the yarn feeder 1 by screws in the middle. The two ends of the yarn feeding plate 51 are connected to the yarn feeding sensor 4 and the yarn feeding eye 54, respectively. The yarn clamping unit 53 is installed on the yarn feeding plate 51 and is located on one side of the yarn feeding eye 54. The yarn clearing unit 52 is installed on the yarn feeding plate 51 and is located between the yarn clamping unit 53 and the yarn feeding sensor 4. Both the yarn clamping unit 53 and the yarn clearing unit 52 are existing mature technologies and will not be described in detail here.

[0040] The yarn feeding assembly 7 includes a yarn feeding plate 71 and a yarn feeding ceramic eye 72. The yarn feeding plate 71 is fixed to the other end of the yarn feeding seat 1 by screws. The two ends of the yarn feeding plate 71 are respectively connected to the yarn feeding sensor 6 and the yarn feeding ceramic eye 72.

[0041] Both the yarn output sensor 6 and the yarn feed sensor 4 are optocoupler sensors, which are commercially available products and will not be described in detail here.

[0042] To facilitate the assembly and disassembly of the electric conveyor, a fixing screw 12 is also included. The fixing screw 12 is threaded onto one end of the yarn feeding seat 1 and is located on one side of the mounting groove 11 of the yarn feeding seat 1, for pressing the yarn feeding seat 1 onto the frame.

[0043] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. An electric yarn feed, characterized in that, include: Yarn feeding seat (1); An external rotor motor (2) is mounted on the yarn feeding seat (1); A yarn storage wheel (3) is mounted on the external rotor motor (2); The yarn feeding assembly (5) is located at one end of the yarn feeding seat (1) and is positioned opposite to the yarn storage wheel (3); A yarn feed sensor (4) is mounted on the yarn feed assembly (5); The yarn feeding assembly (7) is located at the other end of the yarn feeding seat (1) and is disposed opposite to the yarn storage wheel (3); and A yarn output sensor (6) is mounted on the yarn output assembly (7).

2. An electric yarn feeder according to claim 1, characterized in that The yarn storage wheel (3) includes: A yarn storage base (31) is mounted on the external rotor motor (2); A yarn storage ceramic plate (32) is arranged in a ring array on the yarn storage base (31); A yarn storage steel bowl (33) is located on the top of the yarn storage base (31) and is connected to the yarn storage ceramic piece (32); A yarn storage top seat (34) is disposed on the yarn storage steel bowl (33) and connected to the yarn storage base (31); and A yarn storage cover (35) is provided on the yarn storage top seat (34) and is connected to the external rotor motor (2).

3. The electric yarn feeder according to claim 2, characterized in that, The outer circular surface of the yarn storage base (31) is provided with a plurality of axial fixing grooves (313), and the bottom of the yarn storage base (31) is provided with a lower fixing ring (311). The lower fixing ring (311) is provided with a plurality of lower fixing grooves (312) arranged in an annular array on the upper circular surface. The lower fixing grooves (312) are connected to the axial fixing grooves (313). The yarn storage steel bowl (33) is provided with a central fixing groove in a ring array, and the central fixing groove corresponds one-to-one with the axial fixing groove (313); The yarn storage top seat (34) is provided with an upper fixing ring (341), and the upper fixing ring (341) is provided with a plurality of upper fixing grooves (342) arranged in a ring array, and the upper fixing grooves (342) correspond one-to-one with the axial fixing grooves (313); The yarn storage ceramic piece (32) is inserted into the lower fixing groove (312), the upper fixing groove (342) and the middle fixing groove at both ends, respectively, and one side of the yarn storage ceramic piece (32) is inserted into the axial fixing groove (313).

4. An electric yarn feeder according to claim 3, characterized in that, Each of the lower fixing grooves (312) is provided with a lower protrusion (316), which is used to press the yarn storage ceramic piece (32) into the lower fixing groove (312).

5. An electric yarn feeder according to claim 3, characterized in that, The upper fixing groove (342) is provided with upper protrusions (343) on both sides, and the upper protrusions (343) are used to press the top of the yarn storage ceramic piece (32).

6. An electric yarn feeder according to claim 2, characterized in that, The yarn storage base (31) has a plurality of first connecting posts (314) arranged in an internal annular array; the yarn storage top seat (34) has a plurality of first connecting holes (344) arranged in an annular array, and the first connecting holes (344) are inserted into the first connecting posts (314).

7. An electric yarn feeder according to claim 2, characterized in that, The yarn storage top seat (34) is provided with a plurality of second connecting posts (346) arranged in a ring array; the yarn storage steel bowl (33) is provided with a plurality of second connecting holes (332) arranged in a ring array, and the second connecting posts (346) are inserted into the second connecting holes (332).

8. An electric yarn feeder according to claim 2, characterized in that, The outer circular surface of the yarn storage top seat (34) is provided with a plurality of pressing blocks (345), which abut against the yarn storage steel bowl (33).

9. An electric yarn feeder according to any one of claims 1 to 8, characterized in that, The yarn feeding assembly (5) includes: The yarn feeding plate (51) is located at one end of the yarn feeding seat (1), and one end is connected to the yarn feeding sensor (4); A yarn inlet eye (54) is located at the other end of the yarn inlet plate (51); A yarn clamping unit (53) is disposed on the yarn inlet plate (51) and located on one side of the yarn inlet eye (54); and The yarn clearing unit (52) is disposed on the yarn feeding plate (51) and located between the yarn clamping unit (53) and the yarn feeding sensor (4); The yarn output assembly (7) includes: A yarn outlet plate (71) is located at the other end of the yarn feeder (1), and one end is connected to the yarn outlet sensor (6); and The yarn outlet eye (72) is located at the other end of the yarn outlet plate (71).

10. An electric yarn feeder according to any one of claims 1 to 8, characterized in that, It also includes a fixing screw (12), which is located at one end of the yarn feeder (1) and on one side of the mounting groove (11) of the yarn feeder (1).

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