A double-motor wire pumping and bottoming mechanism for a flat knitting machine

Abstract

The present invention provides a dual-motor steel wire pumping and bottoming mechanism of a flat knitting machine, comprising a bottoming plate assembly and a conductor assembly, wherein the conductor assembly is provided with a threading motor and a take-up motor, wherein the conductor assembly fixes one end of the steel wire, clamps the steel wire and controls its lateral reciprocating operation, and when the bottoming mechanism is threading, the threading motor controls the steel wire to pass through the steel wire holes of all the bottoming needles of the bottoming plate assembly; when the bottoming mechanism is pulling, the take-up motor controls the steel wire to be withdrawn from the bottoming plate assembly and wound around the conductor assembly for taking up. The present invention can achieve stable steel wire threading through the setting of dual motors; the take-up is precisely wound, which greatly improves the stability of the threading and take-up work of the bottoming plate, reduces the failure rate of the bottoming needle plate, saves the starting yarn, and improves the efficiency of knitting work.

Description

Technical Field

[0001] The invention relates to the technical field of computerized flat knitting machines, in particular to a double-motor steel wire pumping and bottoming mechanism of a flat knitting machine. Background Art

[0002] Most of the existing knitting machines are computer knitting machines, which are controlled by an automated electronic control system. The electronic control system refers to the combination of electric traction and control circuits that control the starting, braking, forward and reverse rotation, speed regulation, etc. of the motor of the machine. When knitting with a computer knitting machine, the bottom must be lifted first. At present, the bottom lifting plate device of the computer knitting machine mainly consists of a compound needle, a compound needle opening and closing structure, a bottom lifting small needle plate, a lifting mechanism, and a motor for driving the bottom lifting plate up and down. The specific control method is as follows: the coil is locked in the groove by the compound needle, so that the bottom lifting plate provides a pulling force to the fabric downward, and the fabric is pulled until the roller winding wheel is closed and the roller can pull the woven fabric normally. The compound needle releases the elastic locked in the hook groove, and the bottom lifting device moves down to the reset position, thereby completing the bottom lifting work, thereby reducing the yarn waste generated during the weaving process and saving production costs.

[0003] Traditional computerized flat knitting machines have certain drawbacks when in use: from the beginning of knitting to the process of the lifting device weaving back and forth on the bottom needle plate, there is still a problem of a small amount of starting yarn, and the knitted cloth pieces need to be manually removed from the starting yarn, which affects the knitting work efficiency to a certain extent and cannot be improved. For this reason, we propose a dual-motor steel wire pumping bottom mechanism. Summary of the invention

[0004] In order to solve the above-mentioned problems, the main purpose of the present invention is to provide a dual-motor wire drawing and bottoming mechanism in which a threading motor and a take-up motor cooperate to improve the pulling stability of the bottoming plate.

[0005] Effectively improve the stability of the bottom plate guide wire device and avoid manual removal of the bottom mechanism of the yarn.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A dual-motor steel wire extraction and bottoming mechanism of a flat knitting machine comprises a bottoming plate assembly and a conductor assembly, wherein the conductor assembly is provided with a threading motor and a take-up motor, wherein the conductor assembly fixes one end of the steel wire, clamps the steel wire and controls its lateral reciprocating movement, when the bottoming mechanism is threading, the threading motor controls the steel wire to pass through the steel wire holes of all the bottoming needles of the bottoming plate assembly; when the bottoming mechanism is pulling, the take-up motor controls the steel wire to be pulled away from the bottoming plate assembly and wound around the conductor assembly for take-up.

[0008] Furthermore, the wire assembly is fixed with a threading motor and a take-up motor by a support plate, the output shaft end of the threading motor is connected to a threading motor gear, the wire guide wheel is sleeved under the threading motor gear, a driven guide wheel connecting rod is provided above the support plate, the threading driven gear and the driven guide wheel are sleeved and fixed on the driven guide wheel connecting rod, and through the action of the driven guide wheel connecting rod, the threading motor gear and the threading driven gear, and the wire guide wheel and the driven guide wheel can be meshed respectively; the output end of the take-up motor is connected to the take-up motor gear, the take-up driven gear is connected to the support plate and meshes with the take-up motor gear, the take-up wheel is sleeved under the take-up driven gear, one end of the steel wire is fixed and wound around the take-up wheel, and the other end passes through between the wire guide wheel and the driven guide wheel.

[0009] Furthermore, the wire wheel is provided with a V-shaped groove to accommodate the steel wire passing therethrough.

[0010] Furthermore, the driven guide wheel connecting rod is connected with a tension adjustment spring and a tension adjustment screw, and the spring pressure is adjusted by the tension adjustment screw to adjust the wire clamping force of the driven guide wheel and the guide wheel on the wire.

[0011] Furthermore, a wire-winding limit sensor is provided on the side of the wire-winding wheel, a spiral groove is provided on the inner side of the wire-winding wheel, and a wire-winding sensing pendulum is provided under the wire-winding wheel. The wire-winding sensing pendulum is composed of an induction magnet, a sliding rivet and a positioning pin. The wire-winding sensing pendulum is connected to the support plate through the positioning pin and can rotate around the positioning pin. As the wire-winding wheel rotates, the sliding rivet slides in the spiral groove. When it slides to the outermost side of the spiral groove, the wire-winding sensing magnet can trigger the wire-winding limit sensor.

[0012] Furthermore, the base plate assembly includes a base plate, on which a row of base needles are arranged at equal intervals, and the ends of the base needles are provided with base needle wire holes for threading the base steel wire. The steel wire passing through the conductor assembly is guided to the base needle wire hole position by the wire guide tube on the base plate assembly.

[0013] Furthermore, support plates are respectively connected to the lower parts of both sides of the base plate assembly, and a wire sensor frame, a wire sensor frame support and a threading limit sensor are provided on the support plate on the side where the end of the wire reaches. The upper end of the wire sensor frame is parallel to the base needle, and the wire sensor frame can swing in a circle with the wire sensor frame support as a fulcrum when hit by the wire, and the lower end of the wire sensor frame triggers the threading limit sensor.

[0014] Furthermore, the bottom lifting mechanism is also provided with a lifting assembly, which is connected to both sides of the bottom lifting plate assembly. When threading the needle, the lifting assembly drives the bottom lifting plate assembly to rise, and the threading hole of the bottom lifting needle passes through the cloth piece, and the steel wire passes through the entire row of bottom lifting needle wire holes; when pulling, the lifting assembly drives the bottom lifting plate assembly to move downward, and the cloth piece moves downward due to the pulling force of the steel wire.

[0015] Furthermore, the lifting assembly includes a lifting motor, a synchronous belt arranged on both sides, and upper and lower synchronous wheels at both ends of the synchronous belt. The lifting motor drives the synchronous belt to rotate on the synchronous wheel, and the rotation of the synchronous belt drives the support plate of the base plate assembly to move up and down.

[0016] Furthermore, slide rail seats are connected to the synchronous belts on both sides, support plates are arranged above the slide rail seats, and the bottom plate assembly is arranged between the two synchronous belts and connected to the two support plates of the lifting assembly through the two support plates.

[0017] Furthermore, a small sprocket is provided on the motor shaft of the lifting motor, the small sprocket is connected to the large sprocket by a chain, the large sprocket is sleeved with the lower synchronous wheel and arranged on the lifting shaft, and the synchronous belt is also connected to the lifting shaft through the lower synchronous wheel; the slide rail seat is arranged on the synchronous belt through a synchronous belt clamp.

[0018] Furthermore, displacement sensors are provided at the upper and lower ends of the inner side of the synchronous belt respectively, and the displacement sensors feed back information to the lifting motor to control the operation of the lifting motor.

[0019] By adopting the above technical solution, the present invention has the following beneficial effects:

[0020] Compared with the prior art, the high-efficiency, sheet-free bottoming mechanism of the present invention has a reasonable structural arrangement, strong functionality, and the following beneficial effects: stable threading of the wire can be achieved through the arrangement of a wire threading motor and a wire take-up motor of the conductor assembly; precise winding of the wire take-up greatly improves the stability of the threading and wire take-up work of the bottoming plate, reduces the failure rate of the bottoming needle plate, saves the starting yarn, improves the weaving work efficiency, and brings better usage prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the dual-motor steel wire pumping and bottoming mechanism of the present invention.

[0022] Figure 2 Schematic diagram of the conductor assembly of the present invention.

[0023] Figure 3 It is a schematic diagram of the base plate assembly of the present invention.

[0024] Figure 4 It is a schematic diagram of the lifting assembly of the present invention.

[0025] Figure 5 It is a partial schematic diagram of the cooperation between the steel wire and the bottoming needle of the present invention.

[0026] Figure 6 It is a partial schematic diagram of the cooperation between the steel wire and the steel wire sensor frame of the present invention.

[0027] Figure 7It is a top view of the wire pulley of the present invention.

[0028] Figure 8 It is a rear view of the take-up wheel of the present invention.

[0029] Fig. 9 It is a schematic diagram of the coordination between the wire-reeling sensing swing arm and the wire-reeling wheel of the present invention.

[0030] Explanation of the numbers: A: bottom plate assembly; B: lifting assembly; C: wire assembly; A-1: ​​bottom plate; A-2: bottom needle; A-3: steel wire; A-4: steel wire positioning plate; A-5: steel wire conduit fixing seat; A-6: support plate; A-7: steel wire conduit; A-8: steel wire sensor frame; A-9: return torsion spring; A-10: threading limit sensor; A-11: steel wire sensor frame support; B-1: lifting motor; B-2: small sprocket; B-3: chain; B-4: large sprocket; B-5: lower synchronous wheel; B-6: synchronous belt clamp; B-7: slide rail seat; B-8: guide shaft; B-9: upper synchronous wheel; B-10: synchronous belt; B-11: support plate; B-12, lifting shaft; B- 13. Lower displacement sensor; B-14. Upper displacement sensor; C-1: threading motor; C-2: take-up motor; C-3: support plate; C-4: threading motor gear; C-5: wire guide wheel; C-6: threading driven gear; C-7: driven guide wheel; C-8: driven guide wheel connecting rod; C-9: tension adjustment screw; C-10: tension adjustment spring; C-11: wire holder; C-12: take-up motor gear; C-13: take-up driven gear; C-14: take-up wheel; C-141: spiral groove; C-15: take-up induction pendulum; C-151: induction magnet; C-152: sliding rivet; C-153: positioning pin; C-16: take-up limit sensor; C-17: sensor fixing bracket. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the structural diagrams and specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] like Figure 1-9 As shown, the present invention provides a dual-motor steel wire extraction bottoming mechanism of a flat knitting machine, comprising a bottoming plate assembly A and a conductor assembly C. The conductor assembly is provided with a threading motor and a take-up motor. The conductor assembly fixes one end of the steel wire, clamps the steel wire and controls its lateral reciprocating movement. When the bottoming mechanism is threading, the threading motor controls the steel wire to pass through the wire holes of all the bottoming needles of the bottoming plate assembly; when the bottoming mechanism is pulled, the take-up motor controls the steel wire to be pulled away from the bottoming plate assembly and wound around the conductor assembly for take-up.

[0033] Example 1

[0034] like Figure 1-2 As shown in 7-9, the wire assembly C is fixed by the support plate C-3 with the threading motor C-1 and the take-up motor C-2, the threading motor output shaft end is connected with the threading motor gear C-4, the wire pulley C-5 is sleeved under the threading motor gear, and a driven guide wheel connecting rod C-8 is provided above the support plate, the threading driven gear C-6 and the driven guide wheel C-7 are sleeved and fixed on the driven guide wheel connecting rod, and the threading motor gear and the threading driven gear, as well as the wire pulley and the driven guide wheel can be meshed respectively through the action of the driven guide wheel connecting rod.

[0035] The driven guide wheel connecting rod is pressed down to make the threading driven gear contact with the threading motor gear. The threading motor rotates to drive the threading motor gear and the guide wheel to rotate together, and the threading driven gear is driven through meshing transmission, and finally the friction force is generated when the guide wheel and the driven guide wheel mesh. The support plate C-3 is provided with two wire seats C-11, which are used to fix the wire guide tube A-7 and the driven guide wheel connecting rod C-8 respectively, and the wire extends outward along the wire guide tube.

[0036] The output end of the take-up motor is connected to the take-up motor gear C-12, the take-up driven gear C-13 is connected to the support plate and meshed with the take-up motor gear, and the take-up wheel C-14 is sleeved below the take-up driven gear. One end of the steel wire A-3 is fixed and wound on the take-up wheel, and the other end passes between the guide wheel C-5 and the driven guide wheel C-7, and extends horizontally outward through the friction force generated when the guide wheel and the driven guide wheel mesh, and is wound horizontally inward on the take-up wheel through the rotation of the take-up wheel. The take-up wheel is provided with a retaining edge to further limit the steel wire wound on the take-up wheel.

[0037] Preferably, a V-shaped groove is provided on the guide wheel to accommodate the steel wire passing therethrough, further limiting the movement of the steel wire. The driven guide wheel connecting rod is connected to a tension adjustment spring C-10 and a tension adjustment screw C-9, and the tension adjustment screw is used to adjust the spring pressure to adjust the steel wire clamping force of the driven guide wheel and the guide wheel on the steel wire.

[0038] Preferably, a take-up limit sensor C-16 is provided on the side of the take-up wheel, a spiral groove C-141 is provided on the inner side of the take-up wheel, a take-up induction swing rod C-15 is provided below the take-up wheel, and the take-up induction swing rod is composed of an induction magnet C-151, a sliding rivet C-152 and a positioning pin C-153. The take-up induction swing rod is connected to the support plate through the positioning pin and can rotate around the positioning pin. As the take-up wheel rotates, the sliding rivet slides in the spiral groove. When sliding to the outermost side of the spiral groove, the take-up induction magnet can trigger the take-up limit sensor. The take-up limit sensor will feed back a signal to the electric control system to control the take-up motor to stop rotating.

[0039] When threading, the clamping force of the guide wheel and the driven guide wheel drives the steel wire to thread the wire, and the self-locking control of the wire-receiving motor is used to generate a certain pulling force on the steel wire so that the movement of the steel wire in the V-shaped groove is more stable. When rewinding, the self-locking control of the threading motor generates a certain pulling force on the steel wire so that the steel wire is more accurately and orderly wound on the rewinding wheel, and the rewinding wheel is provided with a retaining edge so that the steel wire is accurately and stably wound in the wire groove.

[0040] Example 2

[0041] like Figure 3 , 5 As shown in 6, the bottom plate assembly includes a bottom plate A-1, on which a row of equidistant bottom needles A-2 are arranged, and the ends of the bottom needles are provided with bottom needle wire holes for threading the bottom wire A-3. The steel wire passing through the conductor assembly is guided to the bottom needle wire hole position by the steel wire conduit A-7 on the bottom plate assembly. Support plates A-6 are respectively connected to the lower sides of the bottom plate assembly, and a steel wire positioning plate A-4 is connected to the left side of the bottom plate. The outer edge of the steel wire positioning plate is provided with a threading hole, and a steel wire conduit fixing seat A-5 connected to the support plate is provided below the steel wire positioning plate. The steel wire conduit fixing seat fixes the conduit at a position corresponding to the threading hole of the steel wire positioning plate. The steel wire enters from the threading hole at the lower end of the steel wire positioning plate through the steel wire conduit, and comes out from the threading hole at the upper end, passing through the entire row of bottom needle wire holes.

[0042] The end of the wire reaches the support plate on the side (i.e. Figure 3 A wire sensor frame A-8, a wire sensor frame support A-11 and a threading limit sensor A-10 are arranged on the middle right support plate. The upper end of the wire sensor frame is parallel to the bottom needle. When the wire sensor frame is impacted by the wire, it can swing in a circle with the wire sensor frame support as the fulcrum, and the lower end of the wire sensor frame triggers the threading limit sensor.

[0043] When the steel wire passes through the rightmost bottom needle hole and contacts the steel wire sensor frame, the steel wire sensor frame will be stressed and rotate around the steel wire sensor frame support to sense the threading limit sensor. The threading limit sensor A-10 will feed back the signal to the electronic control system to control the threading motor C-1 to stop rotating. A return torsion spring A-9 is also provided on the steel wire sensor frame support A-11, and the steel wire sensor frame A-8 will be reset by the rebound force of the return torsion spring A-9.

[0044] Example 3

[0045] like Figure 1 , 4 As shown, the bottom lifting mechanism is also provided with a lifting component B, which is connected to both sides of the bottom lifting plate component. When threading the needle, the lifting component drives the bottom lifting plate component to rise, and when the threading hole of the bottom lifting needle passes through the cloth piece, the steel wire passes through the entire row of bottom lifting needle wire holes; when pulling, the lifting component drives the bottom lifting plate component to move downward, and the cloth piece moves downward due to the pulling force of the steel wire.

[0046] The lifting assembly B includes a lifting motor B-1, a synchronous belt B-10 arranged on both sides, and an upper synchronous wheel B-9 and a lower synchronous wheel B-5 at both ends of the synchronous belt. The lifting motor drives the synchronous belt to rotate on the synchronous wheel, and the rotation of the synchronous belt drives the support plate A-6 of the base plate assembly to move up and down.

[0047] The slide rail seats B-7 are connected to the synchronous belts on both sides, and a support plate B-11 is arranged above the slide rail seats. The bottom plate assembly is arranged between the two synchronous belts and is connected to the two support plates of the lifting assembly through two supporting plates.

[0048] A small sprocket B-2 is provided on the motor shaft of the lifting motor. The small sprocket is connected to a large sprocket B-4 through a chain. The large sprocket is sleeved with a lower synchronous wheel B-5 and is arranged on the lifting shaft B-12. The synchronous belt is also connected to the lifting shaft through the lower synchronous wheel. The slide rail seat is arranged on the synchronous belt through a synchronous belt clamp B-6.

[0049] Displacement sensors B-14 and B-13 are respectively arranged at the upper and lower ends of the inner side of the synchronous belt. The displacement sensors feed back information to the lifting motor to control the operation of the lifting motor.

[0050] The lifting component B is controlled by the signal of the electronic control system. When the lifting motor B-1 is working, it drives the small sprocket B-2 to run. The small sprocket B-2 drives the large sprocket B-4 to run through the chain B-3. The lower synchronous wheel B-5 and the lifting shaft B-12 run synchronously with the large sprocket B-4. The lower synchronous wheel B-5 drives the upper synchronous wheel B-9 to run together through the synchronous belt B-10. The synchronous belt B-10 runs up and down, driving the slide rail seat B-7 and the support plate B-11 to run up and down along the guide shaft B-8. The bottom plate component A runs up and down with the support plate B-11. The electronic control system controls the running displacement of the lifting motor B-1 through the signal feedback of the upper displacement sensor B-14 and the lower displacement sensor.

[0051] The above-mentioned embodiments only express the implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A dual-motor wire pumping and bottoming mechanism for a flat knitting machine, comprising a bottoming plate assembly and a conductor assembly, characterized in that: The wire assembly is provided with a threading motor and a wire taking-up motor. The wire assembly fixes one end of the steel wire, clamps the steel wire and controls its lateral reciprocating movement. When the bottoming mechanism is threading, the threading motor controls the steel wire to pass through the steel wire holes of all the bottoming needles of the bottoming plate assembly; when the bottoming mechanism is pulling, the wire taking-up motor controls the steel wire to be pulled away from the bottoming plate assembly and wound around the wire assembly for taking-up. The wire assembly is fixed with a threading motor and a take-up motor by a support plate, the threading motor output shaft end is connected with a threading motor gear, the wire guide wheel is sleeved below the threading motor gear, a driven guide wheel connecting rod is arranged above the support plate, the threading driven gear and the driven guide wheel are sleeved and fixed on the driven guide wheel connecting rod, and the threading motor gear and the threading driven gear, and the wire guide wheel and the driven guide wheel can be meshed respectively through the action of the driven guide wheel connecting rod; The output end of the wire-receiving motor is connected to the wire-receiving motor gear, the wire-receiving driven gear is connected to the support plate and meshes with the wire-receiving motor gear, the wire-receiving wheel is sleeved under the wire-receiving driven gear, one end of the steel wire is fixed and wound on the wire-receiving wheel, and the other end passes through between the wire guide wheel and the driven guide wheel; A wire-reel limit sensor is provided on the side of the wire-reel, a spiral groove is provided on the inner side of the wire-reel, and a wire-reel induction swing rod is provided below the wire-reel. The wire-reel induction swing rod is composed of an induction magnet, a sliding rivet and a positioning pin. The wire-reel induction swing rod is connected to the support plate through the positioning pin and can rotate around the positioning pin. As the wire-reel rotates, the sliding rivet slides in the spiral groove. When sliding to the outermost side of the spiral groove, the wire-reel induction magnet can trigger the wire-reel limit sensor. The driven guide wheel connecting rod is connected with a tension adjustment spring and a tension adjustment screw. The spring pressure is adjusted by the tension adjustment screw to adjust the wire clamping force of the driven guide wheel and the guide wheel on the wire.

2. The dual-motor wire pumping and bottoming mechanism according to claim 1 is characterized in that: The guide wheel is provided with a V-shaped groove for accommodating the steel wire to pass therethrough.

3. The dual-motor wire pumping and bottoming mechanism according to claim 1 is characterized in that: The base plate assembly includes a base plate, on which a row of base needles are arranged at equal distances. The ends of the base needles are provided with base needle wire holes for passing the base steel wires. The steel wire passing through the conductor assembly is guided to the base needle wire hole position by the wire guide tube on the base plate assembly.

4. The dual-motor wire pumping and bottoming mechanism according to claim 1 is characterized in that: Support plates are respectively connected to the lower parts of the two sides of the bottom plate assembly. A wire sensor frame, a wire sensor frame support and a threading limit sensor are provided on the support plate on the side where the end of the wire reaches. The upper end of the wire sensor frame is parallel to the bottom needle. When the wire sensor frame is hit by the wire, it can swing in a circle with the wire sensor frame support as the fulcrum, and the lower end of the wire sensor frame triggers the threading limit sensor.

5. The dual-motor wire pumping and bottoming mechanism according to claim 4 is characterized in that: The bottom lifting mechanism is also provided with a lifting assembly, which is connected to both sides of the bottom lifting plate assembly. When threading the needle, the lifting assembly drives the bottom lifting plate assembly to rise, and when the threading hole of the bottom lifting needle passes through the cloth piece, the steel wire passes through the entire row of bottom lifting needle wire holes; when pulling, the lifting assembly drives the bottom lifting plate assembly to move downward, and the cloth piece moves downward due to the pulling force of the steel wire.

6. The dual-motor wire pumping and bottoming mechanism according to claim 5 is characterized in that: The lifting assembly includes a lifting motor, a synchronous belt arranged on both sides, and upper and lower synchronous wheels at both ends of the synchronous belt. The lifting motor drives the synchronous belt to rotate on the synchronous wheel, and the rotation of the synchronous belt drives the support plate of the base plate assembly to move up and down.

7. The dual-motor wire pumping and bottoming mechanism according to claim 6 is characterized in that: The synchronous belts on both sides are connected to the slide rail seats, and a support plate is arranged above the slide rail seats. The bottom plate assembly is arranged in the middle of the two synchronous belts and is connected to the two support plates of the lifting assembly through the two support plates.

8. The dual-motor wire pumping and bottoming mechanism according to claim 7 is characterized in that: A small sprocket is provided on the motor shaft of the lifting motor, the small sprocket is connected to the large sprocket through a chain, the large sprocket is sleeved with the lower synchronous wheel and arranged on the lifting shaft, and the synchronous belt is also connected to the lifting shaft through the lower synchronous wheel; the slide rail seat is arranged on the synchronous belt through a synchronous belt clamp.

9. The dual-motor wire pumping and bottoming mechanism according to claim 8 is characterized in that: Displacement sensors are respectively provided at the upper and lower ends of the inner side of the synchronous belt, and the displacement sensors feed back information to the lifting motor to control the operation of the lifting motor.

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