Improved automatic needle pressing thread guiding device for single-sided pantyhose circular knitting machine

Abstract

The utility model discloses an improved automatic needle pressing and thread adjusting device for single-side pantyhose circular knitting machine, including saddle, scale, sliding block, triangle, vertical knitting needle, needle cylinder, yarn, born k piece, needle cylinder, frame, vertical knitting needle and born k piece combination form the weaving part, its characterized in that, still include stepping motor, automatic yarn feeding and changing mechanism, support frame, stepping motor installs at the back of saddle and the axle end of stepping motor is connected and controls the rotation of scale, and the top of frame is vertically provided with support frame, and automatic yarn feeding and changing mechanism is suspended in the upper of weaving part through support frame, and automatic yarn feeding and changing mechanism can respectively feed 1~6 different color yarns to weaving part. The automatic yarn feeding and changing mechanism in the utility model can weave the knitted fabric with rich color and various styles through the flexible change of multiple color yarns.

Description

Technical Field

[0001] This utility model relates to an improved automatic needle pressing and thread adjusting device for use in a single-sided circular knitting machine for pantyhose, including a saddle, a scale, a slider, a triangle, a vertical needle, a lower needle cylinder, yarn, a sinker, an upper needle cylinder, and a frame. Background Technology

[0002] The scale in existing single-sided circular knitting machines for pantyhose is adjusted manually, and the existing single-sided circular knitting machines for pantyhose use a fixed yarn feeding device. This fixed yarn feeding device can only feed the yarn to the knitting mechanism at a fixed position. This manual adjustment of the scale and the fixed yarn feeding device will limit the existing single-sided circular knitting machines for pantyhose to use fixed fabric knitting processes, and the knitted fabrics will be of a single color. Ultimately, this limits the functionality of the existing single-sided circular knitting machines for pantyhose. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides an improved automatic presser needle and yarn adjusting device for use in a single-sided pantyhose circular knitting machine, which can flexibly change multiple colored yarns to knit a variety of colored fabrics.

[0004] To achieve the goal of flexibly changing the yarn color to weave a variety of colored fabrics, this utility model adopts the following specific technical measures: an improved automatic needle pressing and yarn adjusting device for a single-sided circular knitting machine for pantyhose, including a saddle, a scale, a slider, a cam, vertical needles, a lower cylinder, yarn, a sinker, an upper cylinder, and a frame. The scale is mounted on the back of the saddle. The front side of the saddle facing the lower cylinder serves as the working surface, and a slider is mounted on this working surface. The slider can make fine adjustments by rotating under the control of the scale. A cam is mounted on the front side of the slider facing the lower cylinder, and a groove is machined on the front side of the cam facing the lower cylinder. Vertical needle grooves are distributed on the radially outer side of the lower cylinder, and vertical needles are embedded in the vertical needles. The needles can move up and down under the guidance of the triangular track groove. The vertical needles rise to hook the yarn and then fall down to cooperate with the spinnerets to perform the knitting action. The spinnerets are embedded in the horizontal needle groove on the top surface of the upper needle cylinder. The upper needle cylinder is installed above the lower needle cylinder and the saddle. The vertical needles and the spinnerets combine to form the knitting section. The feature is that it also includes a stepper motor, an automatic yarn feeding and changing mechanism, and a support frame. The stepper motor is installed on the back of the saddle and the shaft end of the stepper motor is connected to and controls the rotation of the scale. A support frame is erected on the top of the frame. The automatic yarn feeding and changing mechanism is suspended above the knitting section through the support frame. The automatic yarn feeding and changing mechanism can feed 1 to 6 different colors of yarn to the knitting section respectively.

[0005] The automatic yarn feeding and changing mechanism includes a base, a yarn guide plate, a yarn pusher plate, a cylinder, a telescopic spring, and an electromagnetic switch. The base is fixedly installed on the free end of the support frame. The base is used to install the yarn guide plate, which has multiple hollow holes integrally formed on it. One guide post on the base passes through the hollow holes of the yarn guide plate and serves as a yarn guide post. Another guide post on the base passes through the hollow holes of the yarn guide plate and serves as a guide post. The yarn pusher plate has an elongated guide hole integrally formed on it. The yarn pusher plate is connected to the guide post through the elongated guide hole. The bottom end of the yarn pusher plate has an integrally formed yarn pusher nozzle with a notch. The yarn led out from the yarn frame is wound around the yarn guide post and then pulled to the yarn pusher nozzle with the notch. A cylinder is installed at the upper end of the base. The piston rod of the cylinder extends and presses against the top of the yarn pusher plate. An electromagnetic switch is installed at the air inlet of the cylinder. The upper end of the base is connected to one end of the telescopic spring, and the other end of the telescopic spring is connected to the top of the yarn pusher plate.

[0006] The yarn feeding section consists of a yarn feeding plate, a cylinder, a telescopic spring, and an electromagnetic switch. There are 1 to 6 yarn feeding sections, and each yarn feeding section is responsible for feeding yarn of one color.

[0007] The beneficial technical effect achieved by the technical measures described in this utility model is that the woven fabric produced by the automatic yarn feeding and changing mechanism through the flexible change of various colored yarns is not only rich in color, but also diverse in style. Attached Figure Description

[0008] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0009] Figure 1 This is a cross-sectional structural diagram of an existing single-sided pantyhose circular knitting machine.

[0010] Figure 1 In the middle: 1-First scale, 2-First slider, 3-First triangle, 4-Fixed yarn feeding device.

[0011] Figure 2 This is a cross-sectional structural diagram of the present invention when it is in the installation and use state.

[0012] Figure 3 This is a schematic diagram of the automatic yarn feeding and changing mechanism in the present invention when it is in the yarn feeding state.

[0013] Figure 4 This is a schematic diagram of the automatic yarn feeding and changing mechanism in the present invention when it is in the yarn unloading state.

[0014] Figure 2 , 34. A-Stepper motor, A1-Scaler, B-Slider, C-Triangle, D-Automatic yarn feeding and changing mechanism, D1-Support frame, D2-Yarn guide plate, D3-Yarn guide plate, D31-Yarn guide nozzle with notch, D4-Cylinder, D5-Telescopic spring, D6-Electromagnetic switch, E1-Saddle, E2-Lower needle cylinder, E3-Vertical needle, E4-Sinking plate, F-Auxiliary frame, G-Yarn. Detailed Implementation

[0015] like Figure 1 As shown, the first scale 1 of the existing single-sided circular knitting machine is adjusted manually. The first slider 2 and the first triangle 3 move up and down synchronously under the control of the first scale 1. The existing single-sided circular knitting machine uses a fixed yarn feeding device 4. This fixed yarn feeding device 4 can only feed the yarn to the knitting mechanism at a fixed position. This manual adjustment of the first scale 1 and the fixed yarn feeding device 4 means that the existing single-sided circular knitting machine can only use a fixed fabric knitting process, and the knitted fabric has a single color. Example 1

[0016] Figure 2 , Figure 3 , Figure 4An improved automatic needle presser and yarn adjustment device for a single-sided circular knitting machine for pantyhose is shown. It includes a saddle E1, a scale A1, a slider B, a cam C, vertical needles E3, a lower cylinder E2, yarn, a spinneret E4, an upper cylinder, and a frame. The scale A1 is mounted on the back of the saddle E1. The front side of the saddle E1 facing the lower cylinder E2 serves as the working surface, and the slider B is mounted on this working surface. The slider B can perform fine-tuning movements by rotating under the control of the scale A1. The cam C is mounted on the front side of the slider B facing the lower cylinder E2. The cam C has a groove machined on its front side facing the lower cylinder E2. Vertical needle grooves are distributed on the radially outer side of the lower cylinder E2. After the vertical needles E3 are inserted into the vertical needle grooves, they can move up and down under the guidance of the grooves in the cam C. The vertical needles E3 rise to hook the yarn G and then descend to cooperate with the spinneret E4 to perform knitting. The spinneret E4 is embedded in a transverse needle groove on the top surface of the upper cylinder. The needle cylinder is installed above the lower needle cylinder E2 and the saddle E1. The vertical knitting needle E3 and the sinker plate E4 are combined to form the knitting section. The machine is characterized by including a stepper motor A, an automatic yarn feeding and changing mechanism D, and a support frame D1. The stepper motor A is installed on the back of the saddle E1, and the shaft end of the stepper motor A is connected to and controls the rotation of the scale A1. The stepper motor A is controlled by a PLC. The operation of the stepper motor A controls the slider B and the cam C to move up and down simultaneously through the scale A1. The position of the cam C determines the height at which the vertical knitting needle E3 performs the yarn hooking action. The support frame D1 is erected on the top of the frame. The automatic yarn feeding and changing mechanism D is suspended above the knitting section through the support frame D1. The automatic yarn feeding and changing mechanism D can feed 1 to 6 different colors of yarn G to the knitting section respectively. The yarn feeding or unloading action of the automatic yarn feeding and changing mechanism D is also controlled by a PLC.

[0017] The automatic yarn feeding and changing mechanism D includes a base, a yarn guide plate D2, a yarn pusher plate D3, a cylinder D4, a telescopic spring D5, and an electromagnetic switch D6. The base is fixedly installed on the free end of the support frame D1. The base is used to install the yarn guide plate D2. The yarn guide plate D2 has multiple hollow holes integrally formed. Guide post one on the base passes through the hollow holes of the yarn guide plate D2 and serves as a yarn guide post. Guide post two on the base passes through the hollow holes of the yarn guide plate D2 and serves as a guide post. The yarn pusher plate D3 has an elongated guide hole integrally formed. The yarn pusher plate D3 is sleeved with the guide post through the elongated guide hole. The bottom end of the yarn guide plate D3 is integrally formed with a notched yarn guide nozzle D31. The yarn guided from the yarn frame winds around the guide post and is then pulled to the notched yarn guide nozzle D31. A cylinder D4 is installed at the upper end of the base. The piston rod of the cylinder D4 extends and presses against the top of the yarn guide plate D3. An electromagnetic switch D6 is installed at the air inlet of the cylinder D4. One end of the telescopic spring D5 is connected to the upper end of the base, and the other end of the telescopic spring D5 is connected to the top of the yarn guide plate D3. The PLC controls the electromagnetic switch D6 through instructions to achieve the operation of the cylinder D4. Figure 3As shown, after the piston rod of cylinder D4 extends, it pushes the yarn-feeding blade D3 downwards along the guide post, causing the yarn-feeding blade D3 to perform a yarn-feeding action. At this time, the extension spring D5 is in an extended state under the pressure of the piston rod of cylinder D4; as Figure 4 As shown, after the piston rod of cylinder D4 retracts, the yarn-pulling blade D3 moves upward to its initial position under the action of the retraction spring D5, at which point the yarn-pulling blade D3 completes the yarn-pulling action.

[0018] When the yarn-pulling plate D3 completes one up-and-down movement, it moves along the trajectory of a pendulum.

[0019] Among them, the yarn feeding section is composed of yarn feeding plate D3, cylinder D4, telescopic spring D5, and electromagnetic switch D6. The number of yarn feeding sections is one set. Under the command control of PLC, the yarn feeding section can complete the action of feeding or unloading yarn, and can weave single-color woven fabrics.

[0020] like Figure 2 As shown, it also includes an auxiliary frame F to facilitate the vertical knitting needles to hook the yarn. The fixed end of the auxiliary frame F is fastened to the top of the frame by bolts, and the free end of the auxiliary frame F is suspended above the sinker plate E4. The auxiliary frame F is used to assist the vertical knitting needle E3 in successfully hooking the yarn G fed from the automatic yarn feeding and changing mechanism D. Example 2

[0021] The yarn feeding section consists of two sets of components: a yarn feeder (D3), a cylinder (D4), a telescopic spring (D5), and an electromagnetic switch (D6). Each set of yarn feeding sections is responsible for feeding one color of yarn. Under the control of the PLC, each set of yarn feeding sections can perform the actions of feeding or unloading yarn. The two sets of yarn feeding sections can alternate under the control of the PLC to achieve the purpose of changing two colors of yarn, thus enabling the weaving of two-color woven fabrics.

[0022] The rest of this embodiment is the same as that in Embodiment 1. Example 3

[0023] The yarn feeding section is composed of three sets of yarn feeding plates, including the yarn feeding plate D3, cylinder D4, telescopic spring D5, and electromagnetic switch D6. Each set of yarn feeding sections is responsible for feeding one color of yarn. Under the control of the PLC, each set of yarn feeding sections can complete the action of feeding or unloading yarn. The three sets of yarn feeding sections can alternate under the control of the PLC to achieve the purpose of changing three colors of yarn and weaving three-color woven fabrics.

[0024] The rest of this embodiment is the same as that in Embodiment 1. Example 4

[0025] The yarn feeding section is composed of four sets of yarn feeding plates, including the yarn feeding plate D3, cylinder D4, telescopic spring D5, and electromagnetic switch D6. Each set of yarn feeding sections is responsible for feeding one color of yarn. Under the control of the PLC, each set of yarn feeding sections can perform the action of feeding or unloading yarn. The four sets of yarn feeding sections can alternate under the control of the PLC to achieve the purpose of changing four colors of yarn, and can weave four-color woven fabrics.

[0026] The rest of this embodiment is the same as that in Embodiment 1. Example 5

[0027] The yarn feeding section is composed of five sets of yarn feeding plates, including the yarn feeding plate D3, cylinder D4, telescopic spring D5, and electromagnetic switch D6. Each set of yarn feeding sections is responsible for feeding one color of yarn. Under the control of the PLC, each set of yarn feeding sections can complete the action of feeding or unloading yarn. The five sets of yarn feeding sections can alternate under the control of the PLC to achieve the purpose of changing five colors of yarn, and can weave five-color woven fabrics.

[0028] The rest of this embodiment is the same as that in Embodiment 1. Example 6

[0029] The yarn feeding section is composed of yarn feeder D3, cylinder D4, telescopic spring D5, and electromagnetic switch D6. There are six yarn feeding sections. Each yarn feeding section is responsible for feeding one color of yarn. Under the command and control of PLC, each yarn feeding section can complete the action of feeding or unloading yarn. The six yarn feeding sections can alternate under the command and control of PLC to achieve the purpose of changing six colors of yarn and weaving six-color woven fabrics.

[0030] The rest of this embodiment is the same as that in Embodiment 1.

Claims

1. An improved automatic needle presser and yarn adjustment device for use in a single-sided circular knitting machine for pantyhose, comprising a saddle, a scale, a slider, cams, vertical needles, a lower cylinder, yarn, a spinneret, an upper cylinder, and a frame. The scale is mounted on the back of the saddle. The front side of the saddle facing the lower cylinder serves as the working surface, and a slider is mounted on this working surface. The slider can perform upward or downward fine-tuning movements under the rotation control of the scale. A cam is mounted on the front side of the slider facing the lower cylinder, and a guide groove is machined on the front side of the cam facing the lower cylinder. Vertical needle grooves are distributed on the radially outer side of the lower cylinder. After the vertical needles are inserted into the vertical needle grooves, they can move up and down under the guidance of the guide grooves of the cams. The vertical needles rise to hook the yarn and then descend to cooperate with the spinneret to perform knitting. The spinneret is embedded in a horizontal needle groove on the top surface of the upper cylinder. The upper cylinder is positioned above the lower cylinder and the saddle. The vertical needles and the spinneret combine to form a knitting section. The device is characterized in that… It also includes a stepper motor, an automatic yarn feeding and changing mechanism, and a support frame. The stepper motor is mounted on the back of the saddle and the shaft end of the stepper motor is connected to and controls the rotation of the scale. A support frame is erected on the top of the frame. The automatic yarn feeding and changing mechanism is suspended above the knitting section through the support frame. The automatic yarn feeding and changing mechanism can feed 1 to 6 different colors of yarn to the knitting section respectively.

2. The improved automatic needle pressing and thread adjusting device for a single-sided pantyhose circular knitting machine according to claim 1, characterized in that, The automatic yarn feeding and changing mechanism includes a base, a yarn guide plate, a yarn pusher plate, a cylinder, a telescopic spring, and an electromagnetic switch. The base is fixedly installed on the free end of the support frame. The base is used to install the yarn guide plate, which has multiple hollow holes integrally formed on it. One guide post on the base passes through the hollow holes of the yarn guide plate and serves as a yarn guide post. Another guide post on the base passes through the hollow holes of the yarn guide plate and serves as a guide post. The yarn pusher plate has an elongated guide hole integrally formed on it. The yarn pusher plate is connected to the guide post through the elongated guide hole. The bottom end of the yarn pusher plate has an integrally formed yarn pusher nozzle with a notch. The yarn led out from the yarn frame is wound around the yarn guide post and then pulled to the yarn pusher nozzle with the notch. A cylinder is installed at the upper end of the base. The piston rod of the cylinder extends and presses against the top of the yarn pusher plate. An electromagnetic switch is installed at the air inlet of the cylinder. The upper end of the base is connected to one end of the telescopic spring, and the other end of the telescopic spring is connected to the top of the yarn pusher plate.

3. The improved automatic needle pressing and thread adjusting device for a single-sided pantyhose circular knitting machine according to claim 2, characterized in that, A yarn feeding section is formed by combining a yarn feeder, a cylinder, a telescopic spring, and an electromagnetic switch. The number of yarn feeding sections is 1 to 6, and each yarn feeding section is responsible for feeding yarn of one color.

4. The improved automatic needle pressing and thread adjusting device for a single-sided pantyhose circular knitting machine according to any one of claims 1 to 3, characterized in that, It also includes an auxiliary frame for facilitating vertical knitting needles to hook yarn. The fixed end of the auxiliary frame is fastened to the top of the frame by bolts, and the free end of the auxiliary frame is suspended above the sinker.

5. The improved automatic needle pressing and thread adjusting device for a single-sided pantyhose circular knitting machine according to claim 2 or 3, characterized in that, When the yarn-pulling plate completes one up-and-down movement, it follows the trajectory of a pendulum.

Images