Spinning machine drafting mechanism with lower pin with negative pressure function

Abstract

The utility model provides a spinning machine drafting mechanism with a lower pin with a negative pressure function. The spinning machine drafting mechanism comprises a fixing frame, a fixing plate is arranged on the right side in the fixing frame, the lower pin is arranged above the fixing frame, a collecting frame is fixedly installed behind the fixing frame, a controller is fixedly installed on the right rear portion of the upper end of the fixing frame, and the collecting frame is in threaded connection with the rear portion of the fixing frame. According to the spinning machine drafting mechanism with the lower pin with the negative pressure function, the motor, the air suction layer, the collecting frame and other structures are arranged, the negative pressure in the lower pin is utilized, yarn is made to be close to the surface of the lower pin, control over the yarn is enhanced, the upper surface of the whole lower pin is covered with the air suction layer, the yarn can be controlled more comprehensively, and the quality of the yarn is improved. When the yarn enters the gathering range of the gathering frame, the rotating roller can drive the whole gathering frame to conduct circular motion, the yarn drawn from the rear leather roller is wound, the yarn can conduct circular motion along with the gathering frame, meanwhile, the yarn is jacked up by the gathering roller to be drafted and straightened, and the quality of the yarn is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of textile machinery, and more specifically to a spinning machine drafting mechanism with a lower pin having a negative pressure function. Background Art

[0002] Spinning machines usually include roving machines and spinning machines. The roving machine is a spinning machine that makes fiber strips into roving, and the spinning machine is a spinning machine that makes roving into fine yarn. The main function of the roving machine is to draft and twist the fiber strips, and wind the roving into a certain package to meet the processing requirements of the spinning machine. The spinning machine further drafts and twists the roving into fine yarn. A drafting mechanism is installed on the frame of the spinning machine. The drafting mechanism includes a cradle with an upper roller and a plurality of rollers arranged in sequence. By utilizing the grip between the roller and the upper roller and the difference in roller speed, a drafting zone is formed between two adjacent rollers to achieve the drafting of the fiber strip. The existing spinning machine drafting mechanism relies on the upper and lower aprons to hold the fiber strips in its drafting area. Since the fibers in the drafting area of ​​the existing spinning machine drafting mechanism are relatively dispersed, the upper and lower aprons have poor control over the fibers, and yarn breakage is prone to occur, resulting in poor quality of the finished roving.

[0003] In response to the above problems, regarding the poor control ability of the upper and lower aprons over the fibers, the yarn breakage is prone to occur, and the technical problem of poor quality of the finished roving is that after a lot of searching, the patent number 202121308565.8 was found. A spinning machine drafting mechanism with a lower pin with a negative pressure function belongs to the field of textile machinery. A spinning machine drafting mechanism with a lower pin with a negative pressure function includes a roller frame, and a lower pin is provided between the first roller and the second roller; the utility model, by providing a lower pin with a suction function to cooperate with the grid apron, makes the fibers close to the surface of the grid apron and bunched during the drafting process, strengthens the control of the fibers, and is suitable for the effective control of the fibers in the drafting zone when spinning multi-color or multi-component gradient yarns, thereby ensuring the quality of the gradient yarns. However, the technical solution provided by the patent has the following problems:

[0004] (1 The upper surface of the lower pin is provided with a suction port group for bundling the yarns, but the suction port group is only arranged on the left and right sides of the upper surface of the lower pin. When controlling the yarns, the yarns in the middle are often not attracted by the suction port group, and the flatness of the yarns is inconsistent, resulting in inconsistent quality of the yarns;

[0005] (2) When the yarn is being gathered, the yarn has passed through the negative pressure drafting area. The yarn cannot be attracted by the negative pressure drafting during gathering. The yarn is prone to uneven flatness and is prone to folding during gathering, which affects the quality of the yarn gathering.

[0006] The utility model can ensure that the yarn can be subjected to negative pressure stretching when the yarn is subjected to negative pressure stretching from any direction, and the yarn is not likely to be folded relative to each other during contraction, thereby ensuring the quality of the yarn. Utility Model Content

[0007] The utility model aims to solve the technical problems raised by the above-mentioned background technology and provides a spinning machine drafting mechanism with a lower pin having a negative pressure function.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spinning machine drafting mechanism with a lower pin with a negative pressure function, comprising: a fixed frame, a fixed plate is arranged on the right side inside the fixed frame, a lower pin is arranged above the fixed frame, a gathering frame is fixedly installed at the rear of the fixed frame, a controller is fixedly installed at the right rear of the upper end of the fixed frame, and the gathering frame is threadedly connected to the rear of the fixed frame.

[0009] A further preferred solution: a transmission wheel 1 is arranged on the left side of the fixed plate, a first motor is arranged on the left side of the transmission wheel 1, the output end of the first motor is connected to the transmission wheel 1, a transmission wheel 2 is arranged on both the front and rear sides directly above the transmission wheel 1, a transmission belt is nested between the transmission wheel 1 and the transmission wheel 2, and the transmission belt is nested inside the rolling grooves arranged on the surfaces of the transmission wheel 1 and the transmission wheel 2.

[0010] A further preferred solution is that the left side of the transmission wheel 2 above the front and rear sides of the transmission wheel 1 is respectively connected with a front leather roller and a rear leather roller, and a lower pin is arranged between the front leather roller and the rear leather roller.

[0011] A further preferred solution is that the surface of the lower pin is provided with an air suction layer, the surface of the air suction layer is provided with a plurality of air suction ports, the interior of the lower pin is provided with a cavity, and an air guide tube is fixedly installed inside the lower pin.

[0012] A further preferred solution: a second motor is fixedly installed on the left end of the bunching frame, connecting plates are provided at the bottom of the left and right ends of the bunching frame, the other end of the connecting plate is threadedly connected to the fixed frame, fixing bars are provided on the left and right sides above the inner wall of the bunching frame, a bunching roller is provided between the upper and lower ends of the two fixing bars, a rotating roller is provided between the two bunching rollers, and the output end of the second motor passes through the left end of the bunching frame and is fixedly connected to the rotating roller.

[0013] Beneficial effects:

[0014] 1. By providing an air suction layer and an air guide tube, when the yarn passes through the upper surface of the lower pin, the air guide tube inside the lower pin is connected to the air extraction mechanism of the textile machine itself, so the air guide tube will draw the external air inward through the air suction layer, and transfer it through the air guide tube to form a negative pressure layer at the air suction layer. When the yarn passes through the lower pin, the negative pressure inside the lower pin is used to make the yarn close to the surface of the lower pin, thereby strengthening the control of the yarn. Moreover, because the air suction layer covers the entire upper surface of the lower pin, when the yarn is negatively pressure controlled, the yarn can be controlled more comprehensively, thereby ensuring the quality of the yarn.

[0015] 2. By providing a gathering frame and a rotating roller, when the yarn passes through the upper surface of the two gathering rollers and circles around and is wound on the gathering roller, the rotating roller is subsequently started by starting the second motor to start the rotating roller, and the rotating roller drives the entire gathering frame to perform a circular motion, and the yarn drafted from the rear roller is wound. Moreover, because the gathering frame performs a circular motion, the yarn follows the gathering frame to perform a circular motion, and is lifted up and stretched by the gathering roller, so that the yarn maintains the same flatness when being gathered and circled, and the probability of the yarn being folded when being wound and gathered is reduced, thereby ensuring the quality of the yarn and improving the efficiency of the yarn gathering.

[0016] 3. In summary, the drafting mechanism of the spinning machine with a lower pin with a negative pressure function is provided with a motor, a suction layer, a gathering frame and other structures, and uses the negative pressure inside the lower pin to make the yarn close to the surface of the lower pin, thereby strengthening the control of the yarn. Moreover, because the suction layer covers the entire upper surface of the lower pin, the yarn can be controlled more comprehensively, and the yarn will not be unable to be controlled by negative pressure due to appearing in other positions of the upper half of the lower pin, resulting in inconsistent flatness between the yarns. When the yarn passes through the rear leather roller and enters the gathering range of the gathering frame, the rotating roller will drive the entire gathering frame to perform a circular motion, and the yarn drawn from the rear leather roller will be wound. When performing the circular motion, the yarn will follow the gathering frame to perform a circular motion, and at the same time be lifted up and stretched by the gathering roller, so that the yarn can maintain the same flatness when being gathered and circled, thereby ensuring the quality of the yarn. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the frame structure of the utility model.

[0019] Figure 3 This is a schematic diagram of the roller structure of the utility model.

[0020] Figure 4 It is a schematic diagram of the convergence structure of the utility model.

[0021] Figure 5 It is a schematic diagram of the internal structure of the negative pressure shaft of the utility model.

[0022] Figure 1-5 In: 1. fixed frame; 101. controller; 2. fixed plate; 201. transmission wheel 1; 202. first motor; 203. transmission wheel 2; 204. transmission belt; 205. front leather roller; 206. rear leather roller; 3. lower pin; 301. air suction layer; 302. air guide tube; 4. gathering frame; 401. second motor; 402. connecting plate; 403. fixed strip; 404. gathering roller; 405. rotating roller. DETAILED DESCRIPTION

[0023] The following will be combined with the attached embodiment of the utility model Figure 1-Figure 5 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0024] See also Figure 1-5 In the embodiment of the utility model, a spinning machine drafting mechanism with a negative pressure function lower pin includes: a fixed frame 1, a fixed plate 2 is arranged on the right side inside the fixed frame 1, a lower pin 3 is arranged above the fixed frame 1, a bunching frame 4 is fixedly installed at the rear of the fixed frame 1, the bunching frame 4 is threadedly connected to the rear of the fixed frame 1, a transmission wheel 201 is arranged on the left side of the fixed plate 2, a first motor 202 is arranged on the left side of the transmission wheel 201, an output end of the first motor 202 is connected to the transmission wheel 201, a transmission wheel 203 is arranged on both sides of the front and rear of the transmission wheel 201, a transmission belt 204 is nested between the transmission wheel 201 and the transmission wheel 203, and a transmission belt 204 is nested between the transmission wheel 201 and the transmission wheel 203. The driving belt 204 is nested in the rolling grooves set on the surfaces of the transmission wheel 1 201 and the transmission wheel 2 203. The front and rear sides of the transmission wheel 2 203 above the transmission wheel 1 201 are respectively connected to the left side of the transmission wheel 2 203, and a lower pin 3 is set between the front and rear rollers 205 and 206. When installing the drafting mechanism, the fixed frame 1 is placed on a flat ground, and the first motor 202 is fixed in the middle of the fixed frame 1. A fixed plate 2 is set on the right side of the first motor 202, and a transmission wheel 1 201 is set on the left side of the fixed plate 2, wherein the rolling part of the transmission wheel 1 201 is located on the right side of the fixed plate 2, and the right end of the transmission wheel 1 201 is connected to the fixed frame 1. The fixed frame 1 provides support for the transmission wheel 1, and the transmission wheel 2 203 is installed on the front and rear sides above the transmission wheel 1 201. A connecting plate is set at both ends of the left and right sides between the two transmission wheels 203. The connecting plate is fixedly connected to the top of the fixed frame 1. Therefore, the fixed frame 1 can provide support for the rotating wheel 1 201 and the rotating wheel 2 203. At the same time, the rear of the fixed frame 1 is connected to the connecting plate 402 through a threaded connection, so that the gathering frame 4 is fixed to the rear of the fixed frame 1. The fixed frame 1 mainly provides a certain support force for the transmission wheel and the gathering structure to ensure that these devices can be better installed and supported on the textile machine.

[0025] In the embodiment of the utility model, a controller 101 is fixedly installed at the right rear of the upper end of the fixed frame 1, a suction layer 301 is provided on the surface of the lower pin 3, a plurality of suction ports are opened on the surface of the suction layer 301, the interior of the lower pin 3 is arranged as a cavity, an air guide tube 302 is fixedly installed inside the lower pin 3, the yarn is stretched from the bottom of the front roller 205 to the upper rear, and the yarn is pulled through the upper surface of the lower pin 3 and the upper surface of the rear roller 206 to be fixed on the gathering frame 4. At this time, the second motor 401 is started first by the controller 101, and the second motor 401 will make the gathering frame 4 rotate backward to tighten the yarn. At this time, the first motor 202 is started again, and the rotation speeds of the two motors are adjusted to be consistent, so that the yarn can be stretched and gathered at the same time. When the yarn passes through the upper surface of the lower pin 3, the air guide tube 302 inside the lower pin 3 is connected to the exhaust mechanism of the textile machine itself. Therefore, the air guide tube 302 will draw external air inward through the suction layer 301, and transfer it through the air guide tube 302, so that a negative pressure layer is formed at the suction layer 301. When the yarn passes through the lower pin 3, the negative pressure inside the lower pin 3 is used to make the yarn close to the surface of the lower pin 3, thereby strengthening the control of the yarn. Moreover, because the suction layer 301 covers the entire upper surface of the lower pin 3, when the yarn is negatively controlled, the yarn can be controlled more comprehensively. The yarn will not be unable to be controlled by negative pressure because it appears on the left or right side of the upper half of the lower pin 3, resulting in inconsistent flatness between the yarns, thereby ensuring the quality of the yarn.

[0026] In the embodiment of the utility model, a second motor 401 is fixedly installed at the left end of the bunching frame 4, and a connecting plate 402 is provided at the bottom of the left and right ends of the bunching frame 4. The other end of the connecting plate 402 is threadedly connected to the fixing frame 1, and a fixing strip 403 is provided on the left and right sides above the inner wall of the bunching frame 4. A bunching roller 404 is provided between the upper and lower ends of the two fixing strips 403, and a rotating roller 405 is provided between the two bunching rollers 404. The output end of the second motor 401 passes through the left end of the bunching frame 4 and is fixedly connected to the rotating roller 405. When the yarn passes through the upper surface of the two bunching rollers 404, When the yarn is wound around the gathering roller 404 after one circle, the second motor 401 is started to rotate the rotating roller 405, and the rotating roller 405 drives the entire gathering frame 4 to perform a circular motion, and winds the yarn stretched from the rear leather roller 206. Because the gathering frame 4 performs a circular motion, the yarn will follow the gathering frame 4 to perform a circular motion during the circular motion, and at the same time be lifted up and stretched by the gathering roller 405 to be straightened, so that the yarn maintains the same flatness when being gathered and circled, thereby ensuring the quality of the yarn and improving the work efficiency of yarn gathering.

[0027] Working principle: when the yarn passes through the lower pin 3, the negative pressure inside the lower pin 3 is used to make the yarn close to the surface of the lower pin 3, thereby strengthening the control of the yarn. Because the suction layer 301 covers the entire upper surface of the lower pin 3, when the yarn is controlled by negative pressure, the yarn can be controlled more comprehensively, and the yarn will not be unable to be controlled by negative pressure because it appears on the left or right side of the upper half of the lower pin 3, resulting in inconsistent flatness between the yarns. When the yarn passes through the rear leather roller 206 and enters the gathering range of the gathering frame 4, the second motor 401 causes the rotating roller 405 to start rotating, and the rotating roller 405 will drive the entire gathering frame 4 to perform a circular motion, winding the yarn stretched from the rear leather roller 206. When performing a circular motion, the yarn will follow the gathering frame 4 to perform a circular motion, and at the same time be lifted up and stretched by the gathering roller 405, so that the yarn maintains the same flatness when being gathered and circled, thereby ensuring the quality of the yarn while improving the working efficiency of the yarn gathering.

Claims

1. A spinning machine drafting mechanism with a lower pin having a negative pressure function, comprising: A fixing frame (1), wherein a fixing plate (2) is arranged on the right side inside the fixing frame (1), a lower pin (3) is arranged on the top of the fixing frame (1), and a gathering frame (4) is fixedly installed at the rear of the fixing frame (1), characterized in that a controller (101) is fixedly installed at the right rear of the upper end of the fixing frame (1), and the gathering frame (4) is threadedly connected to the rear of the fixing frame (1).

2. A spinning machine drafting mechanism with a lower pin having a negative pressure function according to claim 1, characterized in that: A transmission wheel 1 (201) is arranged on the left side of the fixed plate (2), a first motor (202) is arranged on the left side of the transmission wheel 1 (201), an output end of the first motor (202) is connected to the transmission wheel 1 (201), transmission wheels 2 (203) are arranged on both the front and rear sides directly above the transmission wheel 1 (201), a transmission belt (204) is nested between the transmission wheel 1 (201) and the transmission wheel 2 (203), and the transmission belt (204) is nested inside rolling grooves arranged on the surfaces of the transmission wheel 1 (201) and the transmission wheel 2 (203).

3. A spinning machine drafting mechanism with a lower pin having a negative pressure function according to claim 2, characterized in that: The left side of the transmission wheel 2 (203) above the front and rear sides of the transmission wheel 1 (201) is respectively connected with a front leather roller (205) and a rear leather roller (206), and a lower pin (3) is arranged between the front leather roller (205) and the rear leather roller (206).

4. A spinning machine drafting mechanism with a lower pin having a negative pressure function according to claim 1, characterized in that: The surface of the lower pin (3) is provided with an air suction layer (301), the surface of the air suction layer (301) is provided with a plurality of air suction ports, the interior of the lower pin (3) is provided with a cavity, and an air guide tube (302) is fixedly installed inside the lower pin (3).

5. A spinning machine drafting mechanism with a lower pin having a negative pressure function according to claim 1, characterized in that: A second motor (401) is fixedly installed at the left end of the bunching frame (4), and connecting plates (402) are provided at the bottom of both left and right ends of the bunching frame (4), and the other end of the connecting plate (402) is threadedly connected to the fixed frame (1), and fixing bars (403) are provided on both sides above the inner wall of the bunching frame (4), and a bunching roller (404) is provided between the upper and lower ends of the two fixing bars (403), and a rotating roller (405) is provided between the two bunching rollers (404), and the output end of the second motor (401) passes through the left end of the bunching frame (4) and is fixedly connected to the rotating roller (405).

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