Seamless underwear machine with needle dial and cloth winding cylinder rotating synchronously

Abstract

The invention discloses a seamless underwear machine with needle dials and a spooling cylinder rotating synchronously, and relates to the field of seamless underwear manufacturing, an upper needle dial is connected with a Haff disc through a connecting rod and rotates synchronously with the Haff disc, a lower needle dial is connected with the spooling cylinder and rotates synchronously with the spooling cylinder, and a discharge port of the spooling cylinder is connected with the upper end of an inner conveying pipeline. The lower end of the inner conveying pipeline extends into the conveying pipeline, a sealing mechanism is arranged at the joint of the inner conveying pipeline and the conveying pipeline, and the sealing mechanism is used for ensuring the connection sealing performance between the inner conveying pipeline and the conveying pipeline when the inner conveying pipeline and the winding drum synchronously rotate, so that enough suction force can be provided for smoothly sucking out cloth; meanwhile, impurities can be sucked away, the product quality and the tidiness of the working environment are guaranteed, the upper needle dial and the Haff disc rotate synchronously, the lower needle dial and the winding cylinder rotate synchronously, the distortion phenomenon of the cloth can be obviously reduced, and creases on the cloth cover are reduced.

Description

Technical Field

[0001] The invention relates to the field of underwear manufacturing, and in particular to a seamless underwear machine in which a needle disc and a winding drum rotate synchronously. Technical Background

[0002] As living standards continue to improve, consumers are increasingly demanding quality requirements for seamless underwear, such as comfort and fit. This has driven continuous innovation in seamless underwear manufacturing technology. This technology, which synchronizes the rotation of the needle disc and the winding drum, has emerged. By achieving synchronized rotation of the needle disc and the winding drum, it effectively improves the stress state of the fabric during the knitting process, significantly reducing fabric distortion. This significantly improves the knitting quality and production efficiency of seamless underwear, bringing new development opportunities to the seamless underwear manufacturing industry.

[0003] However, when this technology is put into actual production application, it faces a key problem that needs to be solved urgently. During the weaving process of seamless underwear, in order to ensure that the fabric can be smoothly discharged from the weaving area, it is necessary to use the suction force generated by the fan to suck out the fabric. The working principle of the fan determines that it can only give full play to the suction advantage in a confined space and complete the fabric suction task stably and efficiently. For example, the patent application number 202111105007.6 discloses an induction-type seamless underwear circular knitting machine and a method for controlling the pulling force of the fabric, wherein the pulling device includes a suction motor 1, and the suction motor 1 is connected to the suction port 7 through the trachea 2 and the stepper motor 3. The suction port 7 is located below the winding drum 8, and the suction motor 1 is used to control the working state of the suction port 7. The circular machine also includes a fabric conveying pipe 4, a discharge bell 5, and a discharge cover 6. The fabric conveying pipe 4 is connected to the suction port 7, and the suction generated by the suction motor pulls the clothes from the discharge port to the discharge bell. However, in actual application, it was found that during operation, since the needle disc and the winding drum need to rotate synchronously, the sealing of the connection between the winding drum and the pulling device is difficult to ensure, resulting in insufficient suction of the fan, and the fabric cannot be effectively sucked out. It may even cause impurities such as flying flowers and dust generated during the weaving process to fly everywhere, which not only affects the working environment, but also reduces product quality, seriously restricting the further promotion and application of the synchronous rotation technology of the needle disc and the winding drum in seamless underwear machines. Summary of the Invention

[0004] The problem solved by the present invention is to provide a seamless underwear machine in which the needle disc and the winding drum rotate synchronously. The machine has good sealing performance and sufficient suction force, which can not only suck out the fabric smoothly, but also suck away impurities generated during the weaving process, thereby ensuring product quality and a clean working environment.

[0005] The present invention provides a seamless underwear machine with a needle disc and a cloth winding cylinder rotating synchronously, which includes a machine body, a half disc, a cloth winding cylinder, and a pulling device. The half disc and the cloth winding cylinder are arranged inside the machine body. The half disc is located inside the cloth winding cylinder and is not connected. The pulling device includes a suction fan, a stepping motor, a conveying pipeline, and a discharge port. The suction fan is connected to the stepping motor and the discharge port through a fan pipeline. The discharge port is also connected to the discharge port of the cloth winding cylinder through the conveying pipeline. It is characterized in that it further includes an upper needle disc, a lower needle disc, and an inner conveying pipeline. The upper needle disc is connected to the half disc through a connecting rod and rotates synchronously. The lower needle disc is connected to the cloth winding cylinder and rotates synchronously. The discharge port of the cloth winding cylinder is connected to the upper end of the inner conveying pipeline. The lower end of the inner conveying pipeline extends into the inside of the conveying pipeline. A sealing mechanism is provided at the connection between the inner conveying pipeline and the conveying pipeline. Through the setting of the sealing mechanism, it is used to ensure the connection sealing performance between the inner conveying pipeline and the conveying pipeline when they rotate synchronously with the cloth winding cylinder.

[0006] The inner conveying pipeline includes an upper inner conveying pipeline and a lower inner conveying pipeline. The sealing device includes a gasket with an open upper end. The gasket is filled with a sealing liquid inside. The lower end of the outer end wall of the gasket is connected to the conveying pipeline. A receiving groove for receiving the inner end portion of the gasket is provided at the connection between the upper inner conveying pipeline and the lower inner conveying pipeline. The outer end wall of the upper inner conveying pipeline is placed in the sealing liquid of the gasket for sealed connection. The inner end wall of the upper inner conveying pipeline and the lower inner conveying pipeline are connected through a connecting member.

[0007] The sealing liquid is silicone oil, and the connecting member is a combination of a bolt and a nut.

[0008] Spaced ball bearings are embedded on the outer wall of the lower inner conveying pipeline, and the ball bearings are in contact with the inner wall of the conveying pipeline.

[0009] An external coolant storage tank is also provided at the upper end of the conveying pipeline. A fixed semi-circular ring is provided outside the coolant storage tank. The coolant storage tank is connected to the inner wall of the machine body through the fixed semi-circular ring and a fixed bracket.

[0010] Radially adjustable baffles evenly arranged along the outer circumference of the upper needle disc are further provided between the upper needle disc and the half disc. The upper end of the adjustable baffle is rotatably connected to the upper needle disc. The lower end of the adjustable baffle is connected to the outer wall of the connecting rod through a telescopic rod. A telescopic power mechanism is provided between the adjustable baffle and the connecting rod. Through the telescopic power mechanism, the contraction or expansion of the adjustable baffle can be adjusted.

[0011] The beneficial effects of the seamless underwear machine of the present invention application are as follows: By providing a sealing structure at the connection between the inner conveying pipe connected to the cloth winding cylinder and the conveying pipe, it can ensure good sealing between the rotating cloth winding cylinder and the stationary pulling device, prevent abnormalities such as air leakage, ensure that the pulling device has sufficient suction to smoothly suck out the fabric, and at the same time can also suck away the impurities generated during the knitting process, ensuring product quality and a clean working environment. In addition, through the synchronous rotation of the upper needle disc and the haf disc, and the lower needle disc and the cloth winding cylinder, the present seamless underwear machine realizes the relative stillness of the fabric during the knitting process, thereby significantly reducing the occurrence of fabric distortion phenomena. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0013] Figure 2 For the present invention Figure 1 is a partial view of the sealing device in the present invention;

[0014] Figure 3 is an enlarged view of the sealing device in the present invention;

[0015] Figure 4 is a three-dimensional view of the sealing device in the present invention;

[0016] Figure 5 is a partial schematic diagram of the upper needle disc and the haf disc of the present invention.

[0017] DESCRIPTION OF THE REFERENCE NUMERALS

[0018] 1 - upper needle disc, 2 - lower needle disc, 3 - haf disc, 4 - cloth winding cylinder, 5 - upper inner conveying pipe, 6 - lower inner conveying pipe, 7 - fixed semi-circular ring, 8 - fixed bracket, 9 - coolant storage tank, 10 - conveying pipe, 11 - discharge port, 12 - fan pipe, 13 - stepping motor, 14 - fan, 15 - telescopic rod, 16 - fuselage, 17 - adjustable baffle, 18 - induction device, 19 - connecting rod, 20 - connecting piece, 21 - ball, 22 - sealing gasket, 23 - receiving groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0020] Among them, the same component parts are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the accompanying drawings of this application specification, and the terms "bottom surface" and "top surface", "inner" and "outer" respectively refer to facing towards or away from a specific component. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application specification, "a plurality of" means two or more than two.

[0021] The following further describes this application in conjunction with the accompanying drawings and embodiments.

[0022] As Figure 1 shown, a seamless underwear machine with a needle disc and a cloth winding cylinder rotating synchronously includes a machine body 16, a half disc 3, a cloth winding cylinder 4, and a pulling device. The half disc 3 is conical, and the cloth winding cylinder 4 is funnel-shaped. The half disc 3 and the cloth winding cylinder 4 are arranged inside the machine body 16. The half disc 3 is located inside the cloth winding cylinder 4 and is not connected. The pulling device includes a suction fan 14, a stepping motor 13, a conveying pipeline 10, and a discharge port 11. The suction fan 14 is connected to the stepping motor 13 and the discharge port 11 through a fan pipeline 12. The discharge port 11 also extends into the machine body 1 through the conveying pipeline 10 and is connected to the discharge port of the cloth winding cylinder 4. The seamless underwear machine also includes an upper needle disc 1, a lower needle disc 2, and an inner conveying pipeline. The upper needle disc 1 is connected to the half disc 3 through a connecting rod 19 and rotates synchronously. The lower needle disc 2 is connected to the cloth winding cylinder 4 and rotates synchronously. Therefore, the phenomenon of fabric distortion can be greatly reduced. The discharge port of the cloth winding cylinder 4 is connected to the upper end of the inner conveying pipeline. The lower end of the inner conveying pipeline extends into the conveying pipeline 10. A sealing mechanism is provided at the connection between the inner conveying pipeline and the conveying pipeline 10. Through the setting of this sealing mechanism, the connection sealing performance between the inner conveying pipeline and the conveying pipeline 10 can be ensured when the inner conveying pipeline rotates synchronously with the cloth winding cylinder 4.

[0023] In the present application, the half disk 3 is connected to the upper needle disk 1 and rotates synchronously, while the winding drum 4 is connected to the lower needle disk 2 and the inner conveying pipe and rotates synchronously, so that the fabric is relatively still during the weaving process, thereby significantly reducing the occurrence of fabric distortion. At the same time, the fabric is woven into loops on the knitting needles on the needle disk, and the pulling device is used to generate negative pressure suction, and the negative pressure generated is to pull the fabric looped on the knitting needles downward, and the fabric is separated from the interval between the winding drum 4 and the half disk 3. After that, the fabric is sent to the conveying pipe 10 and the discharge port 11 through the inner conveying pipe. Since a sealing device is provided between the conveying pipe 10 and the inner conveying pipe, the sealing effectiveness of the inner conveying pipe can be guaranteed when it moves, and the occurrence of air leakage, loose connection and other adverse abnormalities can be prevented, ensuring that the negative pressure pipe of the pulling device has sufficient suction inside to smoothly suck out the fabric, and at the same time, it can also suck away impurities generated during the weaving process, ensuring product quality and a clean working environment.

[0024] Specifically, if Figures 2 to 4 As shown, the inner delivery pipe includes an upper inner delivery pipe 5 and a lower inner delivery pipe 6, and the sealing device includes an annular sealing gasket 22 with an upper end opening, the sealing gasket 22 is filled with a sealing liquid, the lower end of the outer end wall of the sealing gasket 22 is connected to the top of the delivery pipe 10, and the connection between the upper inner delivery pipe 5 and the lower inner delivery pipe 6 is provided with a receiving groove 23 for accommodating part of the inner end of the sealing gasket 22. The outer end wall of the upper inner delivery pipe 5 is placed in the sealing liquid of the sealing gasket 22 and is movably sealed. The inner end wall of the other side of the upper inner delivery pipe 5 is connected to the lower inner delivery pipe 6 by a connector (not shown in the figure), which can be a combination of bolts and nuts. Since the connection gap between the upper inner delivery pipe 5 and the delivery pipe 10 forms a liquid sealing structure through the sealing liquid, when the upper inner delivery pipe 5 and the lower inner delivery pipe 6 rotate with the winding drum 4, it does not affect the smoothness of the synchronous rotation of the lower needle plate 2 and the winding drum 4, and at the same time ensures that the negative pressure air duct of the pulling device pipeline can also have good sealing performance.

[0025] Preferably, the sealing liquid of the sealing gasket 22 can be silicone oil, which has a very stable chemical property and a boiling point of 500° C., and forms a liquid sealing layer, thereby achieving a sealed condition.

[0026] Preferably, balls 21 arranged at intervals are embedded on the outer wall of the lower inner delivery pipe 6, and the balls 21 contact the inner wall of the delivery pipe 10. By setting the balls 21, the friction between the lower inner delivery pipe 6 and the delivery pipe 10 can be reduced during rotation.

[0027] Preferably, a coolant storage tank 9 is further provided outside the upper end of the delivery pipe 10. A fixed half-moon ring 7 is provided on the outer periphery of the coolant storage tank 9, which is connected to the inner wall of the fuselage 16 through the fixed half-moon ring 7 and the fixed bracket 8. The provision of the coolant storage tank 9 can reduce the temperature increase caused by friction.

[0028] Preferably, as Figure 5 shown, a radially adjustable baffle 17 is further provided between the upper needle plate 2 and the half disc 3, which is evenly arranged along the outer periphery of the upper needle plate 1. The upper end of the adjustable baffle 17 is rotatably connected to the upper needle plate 2, and the lower end of the adjustable baffle 17 is connected to the outer wall of the connecting rod 19 through a telescopic rod 15. The connection position of the adjustable baffle 17 and the connecting rod 9 is slightly higher than the upper end of the half disc 17 to prevent the gap from being too large and clamping the fabric. A telescopic power mechanism (not shown in the figure) is provided between the adjustable baffle 17 and the connecting rod 19. The telescopic power mechanism can be a telescopic cylinder, and the adjustable baffle 17 can be adjusted to contract or expand through the telescopic power mechanism. An induction device 18 is further provided on the adjustable baffle 17, and the induction device 18 can be a pressure sensor.

[0029] Since both the cloth winding cylinder 4 and the half disc 3 are conical in shape, and the distance between the cloth winding cylinder 4 and the half disc 3 is fixed. However, in the weaving process, the fabric is prone to weaving shrinkage. Especially for circular fabrics, when it needs to fall from the gap between the cloth winding cylinder 4 and the half disc 3, it will be difficult to fall off because it is wound around the half disc 3. In order to prevent the fabric from being sleeved on the half disc 3 and unable to be sucked out by the pulling device. By adjusting the contraction or expansion of the adjustable baffle 17, the gap with the cloth winding cylinder 4 can be adjusted according to the actual situation, which is convenient for the fabric to fall off. At the same time, during the adjustment process, it should be noted that when adjusting the contraction of the adjustable baffle 17, the outer diameter of the outer surface of its lower end cannot be smaller than the outer diameter of the half disc 3 to prevent the adjustable baffle 17 from generating a notch to catch the fabric when it is overly contracted.

[0030] The working principle of the present invention is as follows:

[0031] During operation, the upper needle plate 1 is fixedly connected to the conical split plate 3, and the upper needle plate 1 drives the split plate 3 to rotate synchronously. Similarly, the lower needle plate 2 is fixedly connected to the cloth winding cylinder 4, and the lower needle plate 2 drives the cloth winding cylinder 4 to rotate synchronously. During rotation, by providing a sealing structure at the connection between the inner conveying pipe connected to the cloth winding cylinder 4 and the conveying pipe 10, it is possible to ensure good sealing between the rotating cloth winding cylinder 4 and the drawing device, preventing abnormalities such as air leakage. At the same time, the lower inner conveying pipe 6 of the inner conveying pipe and the conveying pipe 10 reduce friction through the ball 21. And the coolant storage tank 9 outside the conveying pipe 10 can effectively reduce the abnormal temperature rise caused by friction. The conveying pipe 10 is connected to the inner wall of the fuselage 16 through the fixed half-moon ring 7 and the fixed bracket 8, so that the conveying pipe 10 can still remain stationary under the rotation of the inner layer rotating pipe 6. Finally, the fabric is sucked down by the negative pressure generated by the fan 14, and finally the fabric comes out from the discharge port 11. Since the lower needle plate 2 and the cloth winding cylinder 4 rotate synchronously during the production of the fabric, the phenomenon of fabric distortion can be greatly reduced. And by adjusting the contraction or expansion of the adjustable baffle 17, when different raw material fabrics produce fabric shrinkage, they will not be sleeved on the adjustable baffle 17 or the split plate 3 due to shrinkage, preventing the fan from sucking out the fabric normally.

Claims

1. A seamless underwear machine with synchronous rotation of the needle disc and the cloth winding cylinder, which comprises a machine body, a half disc, a cloth winding cylinder, and a pulling device. The half disc and the cloth winding cylinder are arranged inside the machine body. The half disc is located inside the cloth winding cylinder and is not connected. The pulling device includes a suction fan, a stepping motor, a conveying pipeline, and a discharge port. The suction fan is connected to the stepping motor and the discharge port through a fan pipeline. The discharge port is also connected to the discharge port of the cloth winding cylinder through the conveying pipeline. It is characterized in that: It further includes an upper needle plate, a lower needle plate, and an inner conveying pipeline. The upper needle plate is connected to the half disk through a connecting rod and rotates synchronously. The lower needle plate is connected to the cloth winding cylinder and rotates synchronously. The discharge port of the cloth winding cylinder is connected to the upper end of the inner conveying pipeline. The lower end of the inner conveying pipeline extends into the interior of the conveying pipeline. A sealing mechanism is provided at the connection between the inner conveying pipeline and the conveying pipeline. Through the setting of the sealing mechanism, it is used to ensure the connection sealing performance between the inner conveying pipeline and the conveying pipeline when the inner conveying pipeline rotates synchronously with the cloth winding cylinder.

2. A seamless underwear machine with synchronous rotation of the needle disc and the winding cylinder according to claim 1, characterized in that, The inner conveying pipeline includes an upper inner conveying pipeline and a lower inner conveying pipeline. The sealing device includes a gasket with an open upper end. Sealing liquid is provided inside the gasket. The lower end of the outer end wall of the gasket is connected to the conveying pipeline. A receiving groove for receiving the inner end portion of the gasket is provided at the connection between the upper inner conveying pipeline and the lower inner conveying pipeline. The outer end wall of the upper inner conveying pipeline is hermetically connected in the sealing liquid of the gasket. The inner end wall of the upper inner conveying pipeline and the lower inner conveying pipeline are connected through a connecting member.

3. A seamless underwear machine with synchronous rotation of the needle disc and the cloth winding cylinder according to claim 2, characterized in that, The sealing liquid is silicone oil, and the connecting member is a combination of a bolt and a nut.

4. A seamless underwear machine with synchronous rotation of the needle disc and the cloth winding cylinder according to claim 3, characterized in that, Spaced ball bearings are embedded on the outer wall of the lower inner conveying pipeline, and the ball bearings are in contact with the inner wall of the conveying pipeline.

5. A seamless underwear machine with a needle plate and a cloth winding cylinder rotating synchronously according to claim 4, characterized in that, An external coolant storage tank is further provided outside the upper end pipe orifice of the conveying pipeline. A fixed semi-circular ring is provided outside the coolant storage tank. The coolant storage tank is connected to the inner wall of the fuselage through the fixed semi-circular ring and a fixed bracket.

6. A seamless underwear machine with synchronous rotation of the needle plate and the winding cylinder according to any one of claims 1 to 5, characterized in that, Radially adjustable baffles are evenly arranged along the outer circumference of the upper needle plate between the upper needle plate and the half disk. The upper end of the adjustable baffle is rotatably connected to the upper needle plate. The lower end of the adjustable baffle is connected to the outer wall of the connecting rod through a telescopic rod. A telescopic power mechanism is provided between the adjustable baffle and the connecting rod. The telescopic power mechanism can adjust the contraction or expansion of the adjustable baffle.

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