A seamless yarn bottom lifting device for a computerized flat knitting machine

Abstract

A computerized flat knitting machine seamless yarn bottoming device, a bottoming plate is connected with a wire feeding mechanism for feeding and receiving threading wire, the wire feeding mechanism feeds and receives one end of the threading wire in the threading wire pipe of the bottoming plate, and passes through the round hole of the bottoming needle. Its advantages are: simple structure, saving space and parts, thus reducing the use cost; high efficiency and fast response in feeding and releasing the wire.

Description

Technical Field

[0001] The invention relates to the technical field of computerized flat knitting machines, and in particular to a seamless yarn bottom raising device. Background Art

[0002] Manual hand-pulled knitting machines without automatic pulling mechanisms use steel sheets, welded loop needles and "wire threading plates" made of steel wire to "pull" fabrics in the form of hanging weights, and can only weave plain or simple pattern fabrics. With the advancement of technology, high-performance automated computer knitting machines have gradually replaced manual hand-pulled knitting machines. However, the automatic pulling mechanism is affected by factors such as the width of the machine, the bending resistance of the pulling roller, the loop position of the front and rear needles, and the rigidity of the needle bed. The clamping position of the pulling roller is often 30 to 35 mm away from the loop position. In order to start knitting the formal garment pieces, the auxiliary fabric pieces used for spacing must be knitted into the clamping position of the pulling roller before the formal garment pieces can be knitted. After the formal garment pieces are knitted, the auxiliary fabric pieces used for spacing will be removed and treated as waste. Therefore, a compound needle bottoming device with a main needle hook coil and an auxiliary needle retracting coil with a lifting action is produced. In order to achieve stable knitting quality of the lower cloth and the starting horizontal row of the main piece, and in view of the working principle of the compound needle, expensive coated elastic yarn is used for a small amount of auxiliary knitting back and forth. After the formal garment pieces are knitted, they will still be removed and treated as waste. Although it saves time in knitting and removing the auxiliary fabric pieces compared to no bottoming device, it is still a big waste for the huge number of computer sweater pieces.

[0003] For the more traditional computer-woven sheet bottoming method mentioned above, there are also modifications in the form of a "wire threading plate" of a manual hand-pulled flat knitting machine to achieve bottom weaving with seamless yarn. A set of rollers linked by synchronous gears are used to automatically send out and retract the extremely fine steel wire passing through the coil. The steel wire is delivered in the form of a roller, but it is difficult to retract the steel wire that has been tightly wrapped by the coil, which is a fatal problem for the bottoming device of the computer flat knitting machine with seamless yarn or little yarn. The gap between the two rollers is often adjusted to increase the friction and additional tension device. There is also a set of winding rollers driven by a special motor to recover the threading steel wire, but the deformations such as unequal diameter arcs and twisting caused by the "metal fatigue" of the 0.6 mm steel wire are ignored to achieve normal sending and receiving of the steel wire. After a period of continuous work, normal bottom weaving cannot be achieved. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a seamless yarn bottoming device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a computerized flat knitting machine seamless yarn bottoming device, comprising a bottoming plate, a bottoming needle and a wire feeding mechanism, the bottoming plate is provided with a bottoming needle, the bottoming plate is connected to a wire feeding mechanism for sending and receiving threading wire, the wire feeding mechanism sends and receives the other end of the threading wire in the threading wire pipe of the bottoming plate, and passes through the round hole of the bottoming needle.

[0006] Furthermore, a wire feeding mechanism is arranged on the lower side of the base plate, and the wire feeding mechanism includes a frame, a driving motor, a linear guide and a slide, a gear and a rack. A slide is provided at the upper end of the frame, a gear is provided at the lower end of the frame, a driving motor for driving the gear to rotate is provided on the side, a rack is provided on the lower plane of the linear guide, a threading wire groove is provided on the upper plane of the linear guide, the frame is sleeved outside the linear guide, the slide and the linear guide slide to form a moving pair, the gear and the rack are meshed to form a transmission pair, one end of the threading wire is connected to the threading wire fixing block and fixed to the slide, the threading wire fixing block carries the threading wire into the threading wire groove, and the other end of the threading wire passes through the wire feeding mechanism.

[0007] Furthermore, threading wire fixed-length sensors are provided at both ends of the threading wire slide groove of the linear guide, which are used to control the length of the threading wire pushed forward and transmit the signal to the drive motor to control the operation of the drive motor; process grooves are provided on both sides of the threading wire slide groove, and the threading wire in the threading wire slide groove in the middle of the upper plane of the linear guide is fixed to the threading wire fixing block arranged on the lower end surface of the slide, and the threading wire fixing block is located in the concave surface of the lower end surface of the slide and the linear guide. The upper end of the threading wire fixing block is a connecting part connected to the concave surface of the slide, and the lower end is a cylinder with a threading wire fixing cavity in the middle, and the cylinder is embedded in one end of the threading wire slide groove.

[0008] Furthermore, a wire feeding mechanism is arranged on the lower side of the base plate, and the wire feeding mechanism includes a linear guide, a driving motor, a slide and a synchronous belt. Two transmission wheels are arranged on the linear guide, one transmission wheel is connected to the driving motor and driven by the driving motor, a synchronous belt is arranged between the two transmission wheels, the slide is fixed on the synchronous belt, a threading wire fixing block is arranged at the lower end of the slide, the upper end of the threading wire fixing block is a connecting part connected to the slide, and the lower end is a cylinder with a threading wire fixing cavity in the middle, a threading wire slide groove is arranged on the linear guide, the threading wire is arranged in the threading wire slide groove, and one end of the cylinder is embedded in the threading wire slide groove and is fixedly connected to one end of the threading wire; threading wire fixed-length sensors are arranged at both ends of the threading wire slide groove of the linear guide, which are used to control the length of the threading wire pushed forward and transmit the signal to the driving motor to control the operation of the driving motor, and the other end of the threading wire passes through the wire feeding mechanism.

[0009] Furthermore, a shell is provided outside the linear guide rail to wrap the slide, the synchronous belt and the transmission wheel, and an opening is provided on the shell for the threading wire to enter and exit.

[0010] Furthermore, the wire feeding mechanism is arranged on the lower side of the base plate, and the wire feeding mechanism includes a box body, a driving gear, a driving gear, a wire groove wheel, a driving motor, a toothed friction roller, a toothed groove rubbing wheel and a wire inlet and outlet hole. A cavity is arranged on one side of the box body, and a driving motor is arranged on the other side. The driving motor is connected to the driving gear located in the cavity to drive the driving gear to rotate. The driving gear is meshed with the driving gear on one side and the toothed groove roller on the other side. The toothed groove roller is meshed with the toothed friction wheel at the same time, forming a threading wire feeding and receiving linkage device in which four gears can rotate together and in different directions. The concentric shafts of the wire groove wheel and the driving gear are slidably connected by a guide key. The outer surface of the wire groove wheel is provided with a spiral groove for winding the threading wire, and a tensioning wheel device is also arranged on the right side of the wire groove wheel. The surface of the toothed groove roller is provided with an arc groove, and a wire inlet and outlet hole is opened on one side of the cavity.

[0011] Furthermore, the wire groove wheel guide groove plate is located in the cavity, and on the left side of the wire groove wheel, and an inner ring is provided on the right side of the wire groove wheel guide groove plate. The inner ring wall is provided with grooves with the same pitch as the spiral groove of the wire groove wheel and embedded in the spiral groove of the wire groove wheel.

[0012] Furthermore, a wire threading pipe is provided on the right side of the bottom plate. The wire threading pipe is an anti-obstruction double-arc pipe, and is provided with an opening that is exposed when the wire threading is artificially obstructed, and is a sensing slot for the sensor to sense; both ends of the bottom plate are connected to the lifting device.

[0013] Furthermore, a lateral side of the base plate is provided with an angle of a weaving cloth drop opening formed by the front and rear needle beds of the computer machine, and a needle groove is provided. The base needle is embedded in the needle groove, and a steel wire is inserted into the lateral steel wire groove provided on the base plate to fix it. The threading steel wire pipeline is composed of a mounting seat plate and a guide pipeline. The guide pipeline is provided above the mounting seat plate to form a threading steel wire pipeline. The threading steel wire pipeline is installed on a lateral side of the base plate. A straight pipe channel is provided at the outlet end of the threading steel wire pipeline. The tube hole of the straight pipe channel is aligned with the circular hole for the threading steel wire provided on the top of the base needle.

[0014] Furthermore, a herringbone angle is provided on the top of the bottoming needle, a round hole for threading the wire is provided below the herringbone angle, a shape matching the cross-section of the bottoming plate is provided in the middle section, and the tail is provided with long and short legs. The long leg is also provided with a bayonet for fixing the wire, and an elastic anti-loosening bayonet is provided on the inner side of the tail end of the short leg.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the threading wire works under the condition of no or very little friction, always maintaining the original mechanical properties of the threading wire, ensuring the correctness and flexibility of the threading wire delivery and collection, and the replacement of the bottoming needle due to human or other unexpected reasons is as simple as replacing a knitting needle. The structure is simple, saving parts and components, thereby reducing the cost of use. Since the top of the bottoming needle is provided with a herringbone angle with the needle bed mouth, it can be inserted into any tissue fabric and the starting coil can be completely pulled without missing a stitch, and the fabric can be completely pulled down to achieve direct starting without interlaced yarns, greatly reducing the knitting cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a state diagram used in Example 1 of the present invention.

[0018] Figure 2 This is a structural diagram of the bottom lifting device and the lifting device of Example 1 of the present invention.

[0019] Figure 3 This is a structural diagram of the bottom lifting device of Example 1 of the present invention.

[0020] Figure 4 This is a structural diagram of the wire threading pipeline of Example 1 of the present invention.

[0021] Figure 5 This is a structural diagram of the wire feeding mechanism of Example 1 of the present invention.

[0022] Figure 6 This is a structural diagram of the slide according to embodiment 1 of the present invention.

[0023] Figure 7 This is a schematic diagram of the bottom trocar structure of Example 1 of the present invention.

[0024] Figure 8 This is a structural diagram of the bottom lifting device of Example 2 of the present invention.

[0025] Fig. 9 The wire feeding mechanism structure of embodiment 2 of the present invention Figure 1 .

[0026] Fig.10 The wire feeding mechanism structure of embodiment 2 of the present invention Figure 2 .

[0027] Fig.11 This is a structural diagram of the slide according to Embodiment 2 of the present invention.

[0028] Fig.12This is a usage status diagram of Example 3 of the present invention.

[0029] Fig.13 This is a structural diagram of the bottom lifting device of Example 3 of the present invention.

[0030] Fig.14 This is a structural diagram of the wire feeding mechanism of embodiment 3 of the present invention.

[0031] Part names and corresponding numbers in the schematic diagram:

[0032] 1 is the bottom plate, 2 is the wire feeding mechanism, 3 is the bottom sleeve needle, 4 is the threading wire pipeline, 5 is the mounting base plate, 6 is the straight pipe channel, 7 is the guide pipeline, 8 is the threading wire, 9 is the lifting device, 10 is the obstruction sensor, 11 is the frame, 12 is the drive motor, 13 is the linear guide rail, 14 is the threading wire slideway, 15 is the rack, 16 is the gear, 17 is the slide, 18 is the threading wire fixed length sensor, 19 is the process groove, 20 is the threading wire fixing block, 21 is the slide concave surface, 22 is the connecting part, 23 is the cylinder, 24 is the shell 1 is a body, 25 is a transmission wheel, 26 is a synchronous belt, 27 is a box body, 28 is a cover plate, 29 is a driving gear, 30 is a wire inlet and outlet hole, 31 is a round hole, 32 is a bayonet for fixing the wire, 33 is an elastic anti-loosening bayonet, 34 is a needle groove, 35 is a driving gear, 36 is a wire groove wheel guide groove plate, 37 is a groove pattern, 38 is a wire groove wheel, 39 is a spiral groove, 40 is a toothed roller, 41 is a toothed friction wheel, 42 is an arc groove, 43 is a guide key, 44 is a tension wheel, 45 is a tension wheel spring, and 46 is a tension wheel base slider. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1 Please refer to Figure 1-7 The present invention provides the following technical solutions: a computerized flat knitting machine seamless yarn bottoming device, comprising a bottoming plate 1, a bottoming needle 3 and a wire feeding mechanism 2, the bottoming plate 1 is provided with a bottoming needle 3, the bottoming plate 1 is connected with a wire feeding mechanism 2 for sending and receiving a threading wire, the wire feeding mechanism 2 sends and receives the other end of the threading wire 8 in a threading wire pipe 4 of the bottoming plate, and passes through a round hole 31 of the bottoming needle.

[0035] A computerized flat knitting machine seamless yarn bottoming device, a wire feeding mechanism 2 is arranged on the lower side of a bottoming plate 1, the wire feeding mechanism comprises a frame 11, a driving motor 12, a linear guide 13, a slide 17, a gear 16 and a rack 15, a slide 17 is arranged at the upper end of the frame 11, a gear 16 is arranged at the lower end of the frame 11, a driving motor 12 for driving the gear to rotate is arranged on the side, a rack 15 parallel to the linear guide 13 is arranged on the lower plane of the linear guide 13, a threading wire slide 14 is arranged on the upper plane of the linear guide 13, the frame 11 is sleeved outside the linear guide 13, the slide 17 and the linear guide are slidably matched to form a moving pair, the gear and the rack are meshed to form a transmission pair, one end of the threading wire is connected to the threading wire fixing block and fixed to the slide, the threading wire fixing block brings the threading wire into the threading wire slide, and the other end of the threading wire passes through the wire feeding mechanism.

[0036] A computerized flat knitting machine seamless yarn bottoming device, a threading wire fixed length sensor 18 is provided at both ends of the threading wire slideway of the linear guide rail, which is used to control the length of the threading wire pushed forward and transmit the signal to the drive motor to control the operation of the drive motor; a process groove 19 is provided on both sides of the threading wire slideway 14, and the threading wire slideway 14 is formed into a trapezoidal shape by squeezing the process groove 19, and the upper opening groove is narrowed to pass through the thin section in the middle of the threading wire fixing block, while the steel wire is not artificially blocked and arched up to expose the threading wire slideway. The threading wire in the threading wire slideway in the middle of the upper plane of the linear guide rail is fixed to the threading wire fixing block provided on the lower end surface of the slide, and the threading wire fixing block is located in the concave surface of the lower end surface of the slideway and the linear guide rail. The upper end of the threading wire fixing block 20 is a connecting part 22 connected to the concave surface 17 of the slideway, and the lower end is a cylinder with a threading wire fixing cavity in the middle, and the cylinder is embedded in one end of the threading wire slideway.

[0037] A computerized flat knitting machine seamless yarn bottoming device, a bottoming plate 1 is provided with a threading wire pipe 4 on the right side, the threading wire pipe 4 is a drag-reducing double-arc pipe, provided with an opening that is exposed when the threading wire is artificially obstructed, and a sensing slot for a sensor to sense; both ends of the bottoming plate are connected to a lifting device 9.

[0038] A computerized flat knitting machine seamless yarn bottoming device, wherein a bottoming plate is provided with an angle of a weaving cloth drop opening formed by front and rear needle beds of a computerized machine on one lateral side thereof, and is provided with a needle groove 34, a bottoming sleeve needle is embedded in the needle groove, and a steel wire is inserted into the lateral steel wire groove provided on the bottoming plate to fix it, a threading steel wire conduit 4 is composed of a mounting seat plate 5 and a guide conduit 7, the guide conduit 7 is provided above the mounting seat plate 5 to form a threading steel wire conduit 4, the threading steel wire conduit 4 is installed on a lateral side of the bottoming plate 1, a section of a straight tube channel 6 is provided at the outlet end of the threading steel wire conduit, and the tube hole of the straight tube channel is aligned with the round hole 31 for the threading steel wire provided on the top of the bottoming sleeve needle 3.

[0039] A computerized flat knitting machine seamless yarn bottoming device, wherein the top of the bottoming sleeve needle 3 is provided with a herringbone angle, a round hole 31 for threading a wire is provided below the herringbone angle, a shape matching the cross section of a bottoming plate is provided in the middle section, and a long and short foot is provided at the tail end, the long foot is also provided with a bayonet 32 ​​for fixing the wire, and an elastic anti-loosening bayonet 33 is provided on the inner side of the tail end of the short foot.

[0040] The bottoming needle 3 is embedded in the needle groove of the bottoming plate 1, the elastic hook side of the short leg of the bottoming needle 3 is against the back of the needle groove, and the steel wire is inserted through the transverse steel wire groove provided on the bottoming plate 1, and at the same time, the steel wire fixing bayonet 32 ​​provided on the long leg is pressed and fixed.

[0041] The use of this device is that when the computer machine starts to weave a piece, after weaving the first row, the bottom plate 1 is driven by the lifting device 9 to move upward, and the linkage signal makes the cloth winding roller in the open state. The bottom plate 1 continues to rise until the round hole 31 on the top of the bottom needle 3 on the top of the bottom plate is higher than all the coils of the first row of the woven piece and stops rising. The linkage signal makes the driving motor 12 of the wire feeding mechanism start to work, and the slide 17 connected and fixed to the threading wire is driven by the gear rack pair installed under the linear guide 13 to start pushing the threading wire 8 forward. At the same time, the threading wire fixed length sensors 18 arranged at both ends of the linear guide 13 control the length of the threading wire pushed forward. The threading wire 8 pushed forward passes through the double arc pipe installed on the right side of the bottom plate 1. The threading wire 31 is fed into the round hole 31 on the top of the bottom needle in sequence until it passes through the round hole 31 of the last bottom needle 3. At this time, the slide 17 for fixing the threading wire 8 and the push side sensor of the threading wire fixed length sensor 18 arranged at both ends of the linear guide 13 realize induction and stop pushing the threading wire. At this time, the exposed threading wire 8 between the bottom needles 3 are all caught by the coils of the first horizontal row. According to the setting of the program, the bottom plate 1 begins to descend. When the herringbone part of the bottom needle 3 reaches the knitting cloth drop opening formed by the front and rear needle beds, it will not collide with the moving knitting needles on the front and rear needle beds. According to the setting of the program, the computer flat knitting machine starts to continue knitting. The bottom plate 1 sets the pulling speed of the bottom plate 1 required according to the knitting program written for different styles and different pattern organizations of the fabric to achieve the tension required for fabric weaving, and an automatic fine-tuning device is provided to protect the fabric from being pulled and torn for the asymmetric pulling of the lifting device 9 on the left and right and the excessive pulling force. When the fabric pulled by the bottom plate 1 reaches the cloth rolling roller pressing position, the cloth rolling roller automatically closes and enters the active cloth rolling working state, and the bottom plate is in a passive downward state. When the weaving length set by the weaving program is reached, the threading wire recovery program starts, that is, the driving motor 12 of the device starts to work, and the gear rack pair installed under the linear guide rail drives the slide 17 connected and fixed to the threading wire to start to recover the threading wire 8 backward. When it reaches the zero position (initial point) sensor sensing point of the threading wire fixed length sensor 18 set at both ends of the linear guide rail 13, a seamless yarn bottom weaving program is completed, in anticipation of the next cycle work. In the threading process, the bottom needle bending caused by human factors and human negligence may be encountered. The yarn knot hanging on the bottom needle head blocks the round hole for threading the wire. If the threading wire cannot move forward, it will arch out of the sensing slot sensed by the obstruction sensor of the wire channel tube. The obstruction sensor 10 set outside the obstructed opening slot generates induction and starts the stop command.

[0042] The bottom plate needs to be installed on the lifting device for use, and the lifting device uses equipment parts that meet the national standards (GB / T16940-1997 and ISO 10285-2007), such as rolling linear guide sleeves (generally LB162636 OP type), M5 arc tooth synchronous transmission belts, and reduction or torque motors. They are already common equipment accessories used by computer knitting machine companies, and computer knitting machine control system research and development companies in the knitting machinery industry have also reserved channel serial interfaces for the system. The left and right ends of the bottom plate are also provided with installation positions required by the lifting device and preset lifting angle plate installation screw holes. The present invention is applicable to the matching of bottom lifting devices and control systems of various types of computer knitting machines.

[0043] There are 4 preset lifting angle plate mounting screw holes on the left and right sides of the base plate.

[0044] Example 2 Please refer to Figure 8-11 , the present invention provides the following technical solutions:

[0045] A computerized flat knitting machine seamless yarn bottoming device, a wire feeding mechanism is arranged on the lower side of the bottoming plate, the wire feeding mechanism comprises a linear guide 13, a driving motor 12, a slide 17 and a synchronous belt 26, two transmission wheels 25 are arranged on the linear guide, one transmission wheel is connected to the driving motor and driven by the driving motor, a synchronous belt is arranged between the two transmission wheels, the slide is fixed on the synchronous belt, a threading wire fixing block is arranged at the lower end of the slide, the upper end of the threading wire fixing block is a connecting part connected to the slide, and the lower end is a cylinder with a threading wire fixing cavity in the middle, a threading wire slide groove is arranged on the linear guide, the threading wire is arranged in the threading wire slide groove, and one end of the cylinder is embedded in the threading wire slide groove and fixedly connected to one end of the threading wire; threading wire fixed length sensors are arranged at both ends of the threading wire slide groove of the linear guide, which are used to control the length of the threading wire pushed forward and transmit the signal to the driving motor, so as to control the operation of the driving motor, and the other end of the threading wire passes through the wire feeding mechanism.

[0046] A computerized flat knitting machine seamless yarn bottoming device, a shell 24 is arranged outside a linear guide rail to wrap a slide, a synchronous belt and a transmission wheel, and an opening is arranged on the shell for the threading wire to enter and exit.

[0047] Retracting the threading wire is a fatal problem of the bottoming device of computerized flat knitting machines with no or little interspaced yarns. When the threading wire is entangled with the yarn, it becomes very difficult to retract it under normal circumstances. The present invention utilizes the fixed-length pitch characteristics of the synchronous toothed belt as well as the controllable "flexibility" and high "tensile resistance" characteristics, and instructs the different torques generated during the rotation of the driving motor to retract the threading wire at unequal speeds until it leaves the small round hole of the first bottoming needle. Then the return fixed-length sensor generates an induction to complete the threading wire retraction work.

[0048] Example 3, please refer to Figure 12-14 , the present invention provides the following technical solutions:

[0049] A computerized flat knitting machine seamless yarn bottoming device, wherein a wire feeding mechanism is arranged at the lower side of a bottoming plate, and the wire feeding mechanism comprises a box body 27, a driving gear 29, a driving gear 35, a wire groove wheel 38, a driving motor 12, a toothed roller 40, a toothed friction wheel 41, a wire inlet and outlet hole 30, and a threading wire feeding and drawing tension device composed of a tension wheel 44, a tension wheel tension spring 45, and a tension wheel base slider 46. A cavity is arranged on one side of the box body 27, and a driving motor 12 is arranged on the other side. The driving motor 12 is connected to the driving gear 29 located in the cavity to drive the driving gear to rotate. The driving gear 29 is meshed with the driving gear 35 on one side and meshed with the toothed roller 40 on the other side. The toothed roller is meshed with the toothed friction wheel 41 at the same time, forming a threading wire feeding and receiving linkage device in which four gears can rotate together and in different directions. The wire groove wheel 38 and the concentric shaft of the driving gear 35 are slidably connected through a guide key 43. The outer surface of the wire groove wheel 38 is provided with a spiral groove 39 for winding the threading wire 8, and a tensioning wheel device is also provided on the right side of the wire groove wheel. The surface of the toothed roller is provided with an arc groove 42, and a wire inlet and outlet hole 30 is opened on one side of the cavity.

[0050] A computerized flat knitting machine seamless yarn bottoming device, a wire groove wheel guide groove plate 36 is located in a cavity and on the left side of a wire groove wheel 38, and an inner ring is provided on the right side of the wire groove wheel guide groove plate 36, the inner ring wall is provided with a groove 37 with the same pitch as the wire groove wheel spiral groove 39 and embedded in the spiral groove 39, after embedding, the spiral groove leaves a smooth passage for the threading wire 8 to move back and forth.

[0051] A computerized flat knitting machine seamless yarn bottoming device, wherein the driving motor rotates to drive the driving gear to rotate; and a program for controlling the forward and reverse rotation of the driving motor is provided.

[0052] A computerized flat knitting machine seamless yarn bottoming device comprises a driving gear, a roller with a tooth groove and a friction wheel with a tooth which are rotatably connected in a cavity.

[0053] A computerized flat knitting machine seamless yarn bottoming device, wherein an active gear drives a driving gear to rotate; a driving gear 35 drives a wire groove wheel 38 to rotate, and the wire groove wheel rotates to retract and release the threading wire through a spiral groove.

[0054] The rotation of the driving gear drives the toothed roller and the toothed friction wheel to rotate at the same time; the toothed roller and the toothed friction wheel are a pair of power-assisted combination wheels for sending and receiving the steel wire. The outer surface of the toothed roller is provided with an arc groove 42, which plays a role in sending and receiving positioning and guiding the threading steel wire.

[0055] A computerized flat knitting machine seamless yarn bottoming device, a wire groove wheel slidingly connected and sleeved on the guide key 43 of the drive gear 35 shaft sleeve, and the wire groove wheel guide groove plate 36 fixed on the box body and the groove 37 with the same pitch as the wire groove wheel spiral groove 39, so that the rotating wire groove wheel moves back and forth along the guide key according to the direction of the driving motor, so that the entry and exit points of the threading wire 8 at the wire groove wheel and the arc groove 42 with the tooth groove roller and the wire inlet and outlet 30 on the box body are kept on the same plane, thereby minimizing the deformation of the threading wire and accelerating metal fatigue caused by accidents during the sending and receiving process of the threading wire.

[0056] A computerized flat knitting machine seamless yarn bottoming device, wherein the outer circle of a toothed roller is provided with an arc groove, the width of which is 10-15% greater than the outer diameter of a threading wire, and the depth of which is 10-15% less than the outer diameter of the threading wire; it can ensure that the threading wire does not generate useless resistance in the arc groove of the toothed roller, and at the same time, the rotating toothed friction wheel can contact the threading wire, generate a certain friction force, and realize the sending and receiving of the threading wire.

[0057] A computerized flat knitting machine seamless yarn bottoming device, a toothed friction wheel is provided with an adjustable tension device, so as to facilitate the delivery of the threading wire with reasonable friction force without deformation of the threading wire; since the reverse rotation of the wire groove wheel has generated a delivery force on the threading wire, the toothed groove roller and the toothed friction wheel are a pair of power-assisted combination wheels for delivering the threading wire, that is, the wheel gap will not cause deformation of the threading wire, and the errors caused by factors such as mechanical structure and processing and assembly will affect the gap of the power-assisted combination wheels, thereby affecting the size of the friction force, so an adjustable tension device for delivering and drawing the threading wire composed of a tension wheel 44, a tension wheel spring 45, and a tension wheel base slider 46 is provided. The outer surface of the tension wheel 44 is also provided with an arc-shaped annular groove, which plays a role in keeping the positioning wire and the arc groove 42 of the grooved roller and the wire inlet and outlet 30 on the box body on the same plane, and also plays a complementary effect with the wire groove wheel guide groove plate 36. The wire groove wheel guide groove plate 36 can curb the outward arch phenomenon of the threading wire, and the adjustable tension device can tighten the outward arched threading wire 8 due to the action of the tension wheel tension spring 45 in case of unexpected circumstances, so that the grooved roller 40 and the toothed friction wheel 41, a pair of auxiliary combined wheels for sending and receiving the wire, can work smoothly, ensuring that the threading wire 8 can also smoothly enter the small round hole of the bottom plate needle.

[0058] A computerized flat knitting machine seamless yarn bottoming device, wherein the side of a wire groove wheel guide groove plate 36 is fixed to a box body, and the wire groove wheel guide groove plate 36 not only plays the role of moving the wire groove wheel 38 back and forth, but also plays the role of preventing the wire groove wheel from reversing when feeding the threading wire, that is, the outer arch phenomenon that may occur when the threading wire is fed out.

[0059] A computerized flat knitting machine seamless yarn bottoming device, one side of the cavity of the box is open and a cover plate 28 is provided on the right side of the driving gear to cover the driving gear, the grooved roller and the toothed friction wheel.

[0060] The purpose of the present invention is to solve the shortcomings existing in the prior art, and a seamless yarn bottoming device is proposed: it is composed of a frictionless conveying threading steel wire, a driving device for recovering the threading steel wire that has been tightly wrapped by a coil, and an assembled bottoming plate. It has a simple structure, is easy to install, and has a low manufacturing cost. Since the top of the bottoming needle is provided with a herringbone angle with the needle bed mouth, it can be inserted into any tissue of fabric and the starting coil can be completely pulled without missing a stitch, and the fabric can be completely pulled down to achieve direct starting of seamless yarn, which greatly reduces the weaving cost, while releasing the workload of the operator, and will realize the operation and management of more machines.

[0061] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A computerized flat knitting machine seamless yarn bottoming device, characterized in that: It includes a bottom plate, a bottom needle and a wire feeding mechanism. The bottom plate is provided with a bottom needle. The bottom plate is connected with a wire feeding mechanism for sending and receiving the threading wire. The wire feeding mechanism sends and receives the other end of the threading wire in the threading wire pipe of the bottom plate and passes through the round hole of the bottom needle. The wire feeding mechanism is arranged at the lower side of the base plate, and the wire feeding mechanism includes a frame, a driving motor, a linear guide rail and a slide, a gear and a rack. A slide is arranged at the upper end of the frame, a gear is arranged at the lower end of the frame, a driving motor for driving the gear to rotate is arranged on the side, a rack is arranged on the lower plane of the linear guide rail, a threading wire slide groove is arranged on the upper plane of the linear guide rail, the frame is sleeved outside the linear guide rail, the slide rail and the linear guide rail slide to form a moving pair, the gear and the rack mesh to form a transmission pair, one end of the threading wire is connected to the threading wire fixing block and fixed to the slide, the threading wire fixing block brings the threading wire into the threading wire slide groove, and the other end of the threading wire passes through the wire feeding mechanism; Threading wire fixed-length sensors are provided at both ends of the threading wire slideway of the linear guide, which are used to control the length of the threading wire pushed forward and transmit the signal to the drive motor to control the operation of the drive motor; process grooves are provided on both sides of the threading wire slideway, and the threading wire in the threading wire slideway in the middle of the upper plane of the linear guide is fixed to the threading wire fixing block provided on the lower end surface of the slide, and the threading wire fixing block is located in the concave surface of the lower end surface of the slide and the linear guide. The upper end of the threading wire fixing block is a connecting part connected to the concave surface of the slide, and the lower end is a cylinder with a threading wire fixing cavity in the middle, and the cylinder is embedded in one end of the threading wire slideway; A wire threading pipe is provided on the right side of the bottom plate. The wire threading pipe is an anti-blocking double-arc pipe with an opening that is exposed when the wire threading is blocked artificially, and is a sensing slot for the sensor to sense. Both ends of the bottom plate are connected to the lifting device. The transverse side of the bottom plate is provided with an angle of the weaving cloth drop opening formed by the front and rear needle beds of the computer machine, and is provided with a needle groove. The bottom sleeve needle is embedded in the needle groove, and the steel wire is inserted into the transverse steel wire groove provided on the bottom plate to fix it. The threading steel wire pipeline is composed of a mounting seat plate and a guide pipeline. The guide pipeline is provided above the mounting seat plate to form a threading steel wire pipeline. The threading steel wire pipeline is installed on the transverse side of the bottom plate. A straight pipe channel is provided at the outlet end of the threading steel wire pipeline. The tube hole of the straight pipe channel is aligned with the round hole for the threading steel wire provided on the top of the bottom sleeve needle. The top of the bottoming needle is provided with a herringbone angle, and a round hole for threading the steel wire is provided below the herringbone angle. The middle section is provided with a shape that matches the cross-section of the bottoming plate, and the tail is provided with long and short legs. The long leg is also provided with a bayonet for fixing the steel wire, and the inner side of the tail end of the short leg is provided with an elastic anti-loosening bayonet.

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