Circular knitting machine sleeve running-in device

Abstract

A sleeve running-in device of a circular weft knitting machine comprises a rack, a power device and a transmission device, the rack serves as a basic supporting structure of the whole running-in device, a through hole is formed in the left side of the rack, a sleeve is rotationally arranged in the through hole, a supporting seat used for supporting is arranged on the right side of the rack, and a middle bearing seat and a motor bottom plate seat are arranged on the supporting seat. The power device comprises a motor, the motor is used for providing power and is fixed to the rack through a motor bottom plate seat, the transmission device comprises a belt pulley assembly, a synchronous wheel assembly and a transmission shaft on a middle bearing seat, and the transmission device is used for transmitting the power provided by the power device to the sleeve sequentially through the belt pulley assembly, the transmission shaft and the synchronous wheel assembly. According to the running-in device, stepless speed regulation is achieved through integrated design, a multi-stage transmission system is adopted, the frequency converter is combined, the sleeve is made to run in step by step at different rotating speeds, the running-in efficiency is improved, and the running-in time is remarkably shortened.

Description

Technical Field

[0001] The utility model relates to a circular weft knitting machine sleeve running-in device, belonging to the field of textile equipment. Background Art

[0002] With the continuous development of the textile industry, as an important device in textile machinery, the performance and efficiency of circular weft knitting machines have a crucial impact on textile production. During the production process, circular weft knitting machines need to withstand the tests of high-speed operation and long-term work. Therefore, the performance and service life of their sleeves and internal bearings are directly related to the stability and production efficiency of the whole machine.

[0003] After the traditional circular weft knitting machine frame is assembled with sleeves and internal parts, various bearings and the first mandrel in the sleeve are idling without load for 24 hours to remove the stress during assembly and gradually adapt the internal friction surfaces of the bearings. Moreover, the energy consumption of using the frame to rotate is high, the accuracy at high speeds is improved, and the failure rate caused by assembly in the initial stage is reduced. On this basis, there are still certain defects. The circular weft knitting machine frame occupies too much land and has a long running-in time. When idling, the speed is single, and without load, it is difficult to stimulate deep dislocation migration. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a circular weft knitting machine sleeve running-in device to solve the problems that the existing running-in method not only takes a long time and occupies a large area, but also is inconvenient to install during load rotation, easily causes eccentric wear, affects the service life of the sleeve bearing and the overall performance of the circular weft knitting machine.

[0005] To achieve the above purpose, the utility model is realized through the following technical solutions: A circular weft knitting machine sleeve running-in device, which includes:

[0006] A frame, which serves as the basic support structure of the entire running-in device. A through hole is provided on the left side of the frame, and a sleeve is rotatably arranged in the through hole. A support seat for support is provided on the right side of the frame, and an intermediate bearing seat and a motor base seat are provided on the support seat;

[0007] A power device, which includes a motor for providing power and is fixed to the frame through the motor base seat;

[0008] A transmission device, which includes a pulley assembly, a transmission shaft, a synchronous pulley assembly, and a transmission shaft on the intermediate bearing seat. The power provided by the power device is sequentially transmitted to the sleeve through the pulley assembly, the transmission shaft, and the synchronous pulley assembly, thereby driving the sleeve to rotate.

[0009] Further, the base of the support base is in an I-shape. A first support plate extends vertically from the middle position thereof. A second support plate is provided on one side of the first support plate close to the sleeve. A motor base plate is provided on the other side of the first support plate. A middle bearing seat is sleeved inside the second support plate.

[0010] Further, the pulley assembly is divided into a small pulley, a large pulley and a V-belt. The synchronous pulley assembly is divided into a small synchronous pulley, a large synchronous pulley and a transmission belt. The small pulley is drivingly connected to the large pulley through the V-belt. The small synchronous pulley is drivingly connected to the large synchronous pulley through the transmission belt.

[0011] Further, the small pulley is sleeved on the output end of the motor. The large pulley and the small synchronous pulley are sleeved on the transmission shaft in a top-down order.

[0012] Further, a head spindle is sleeved in the middle of the large synchronous pulley and its top end is fixed by a nut and a bearing. The head spindle passes through another bearing and then is connected to the sleeve, so that the large synchronous pulley can drive the sleeve to rotate stably and precisely through the head spindle.

[0013] Further, a counterweight is also installed on the periphery of the sleeve. The counterweight is installed around the sleeve in a detachable manner. The weight and shape of the counterweight are designed according to the size, weight and moment of inertia of the sleeve, so as to avoid vibrations and stress concentration caused by imbalance.

[0014] Further, a plurality of counterweights are provided and distributed in the circumferential direction of the sleeve, so as to reduce the wear of the bearings in the sleeve and extend its service life.

[0015] Further, an electric control box and a frequency converter are respectively provided on the left and right sides of one end of the frame far from the sleeve. The electric control box is used to control the start, stop and speed regulation of the motor. The frequency converter is used to adjust the power supply frequency of the motor to achieve stepless speed regulation of the motor.

[0016] Further, a detachable connection is adopted between the first support plate and the motor base plate. A detachable connection is adopted between the motor and the motor base plate. The motor base plate is fixed to the motor in an inclined state. The lower side is fixed up and down by a lead screw, and the higher side is fixed by a bolt and an adjustment hole is also provided at the bolt connection.

[0017] The beneficial effects of the present utility model are:

[0018] In this application, a motor is used as the power source. The output end of the motor drives the small pulley to rotate. The small pulley drives the large pulley to rotate through a V-belt. The large pulley and the small synchronous pulley are installed on the intermediate bearing seat. The small synchronous pulley drives the large synchronous pulley to rotate through a belt. Combined with the head mandrel sleeved in the middle of the large synchronous pulley, one end of the head mandrel is fixed to the large synchronous pulley through a bearing and a nut, and the other end is connected to the sleeve through another bearing. The rotation of the large synchronous pulley is transmitted to the sleeve through the head mandrel, driving the sleeve to perform precise running-in.

[0019] 1. A multi-stage transmission system is adopted, combined with a frequency converter to achieve stepless speed regulation, enabling the sleeve to be gradually run-in at different speeds. Compared with the traditional single-speed running-in, it can more comprehensively remove assembly stress, improve the surface finish and mating accuracy of the bearing, thereby improving the running-in efficiency and significantly shortening the running-in time.

[0020] 2. The overall structure is designed compactly, greatly saving the occupied space, making the workshop layout more reasonable. Moreover, the inclined design and detachable connection method of the motor base seat, combined with the adjustment holes at the bolt connection, make the installation, maintenance and position adjustment of the motor more convenient.

[0021] 3. The detachable installation method of the counterweight is also convenient for flexible adjustment according to needs. By reasonably configuring the weight and position of the counterweight, the centrifugal force during the rotation of the sleeve can be effectively balanced, reducing vibration and stress concentration, thereby reducing the risk of eccentric wear and significantly extending the service life of the sleeve bearing, ensuring the stable overall performance of the circular knitting machine.

[0022] 4. The use of the frequency converter realizes the stepless speed regulation of the motor, enabling the equipment to adapt to different specifications of sleeves and diverse running-in requirements, improving the flexibility of production and meeting the requirements of different production tasks. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present utility model will become more obvious:

[0024] Figure 1 It is a schematic structural diagram of a circular knitting machine sleeve running-in device of the present utility model;

[0025] Figure 2 It is a schematic right-rear side view structure diagram of a circular knitting machine sleeve running-in device of the present utility model;

[0026] Figure 3 It is a schematic right-front view structure diagram of a circular knitting machine sleeve running-in device of the present utility model;

[0027] Figure 4 It is a schematic top view structure diagram of a circular knitting machine sleeve running-in device of the present utility model.

[0028] The reference numerals are respectively: 1, frame; 11, support base; 12, first support plate; 13, second support plate; 14, intermediate bearing seat; 141, transmission shaft; 15, motor base plate seat; 151, lead screw; 152, bolt; 153, adjustment hole; 16, electric control box; 17, frequency converter; 18, sleeve; 2, power device; 21, motor; 3, transmission device; 31, small pulley; 32, large pulley; 33, small synchronous pulley; 34, large synchronous pulley; 35, head spindle; 36, V-belt; 37, transmission belt; 4, counterweight block. Detailed implementation manners

[0029] In order to make the technical means, creative features, achieved purposes and functions implemented by the present utility model easy to understand, the present utility model will be further described below in conjunction with the detailed implementation manners.

[0030] Figure 1 It is a structural schematic diagram of a circular weft knitting machine sleeve running-in device of the present utility model. Figure 2 It is a structural schematic diagram of a circular weft knitting machine sleeve running-in device of the present utility model.

[0031] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the present utility model provides a technical solution for a circular weft knitting machine sleeve running-in device, which includes:

[0032] Frame 1, the frame 1 serves as the basic support structure of the entire running-in device. A through hole is provided on the left side of the frame 1, and a sleeve 18 is rotatably arranged in the through hole. A support base 11 for support is provided on the right side of the frame 1, and an intermediate bearing seat 14 and a motor base plate seat 15 are provided on the support base 11.

[0033] Power device 2, the power device 2 includes a motor 21, and the motor 21 is used to provide power and is fixed to the frame 1 through the motor base plate seat 15.

[0034] Transmission device 3, the transmission device 3 includes a pulley assembly, a synchronous pulley assembly and a transmission shaft 141 on the intermediate bearing seat 14. The power provided by the power device 2 is sequentially transmitted to the sleeve 18 through the pulley assembly, the transmission shaft 141 and the synchronous pulley assembly, thereby driving the sleeve 18 to rotate.

[0035] In order to improve the support stability and structural strength, the base of the support base 11 is in an I-shaped shape, and a first support plate 12 extends vertically upward from the middle position. A second support plate 13 is provided on one side of the first support plate 12 close to the sleeve 18, a motor base plate seat 15 is provided on the other side of the first support plate 12, and an intermediate bearing seat 14 is sleeved inside the second support plate 13.

[0036] To optimize the efficiency and precision of power transmission, the pulley assembly is divided into a small pulley 31, a large pulley 32, and a V-belt 36. The synchronous pulley assembly is divided into a small synchronous pulley 33, a large synchronous pulley 34, and a transmission belt 37. The small pulley 31 is drivingly connected to the large pulley 32 through the V-belt 36, and the small synchronous pulley 33 is drivingly connected to the large synchronous pulley 34 through the transmission belt 37.

[0037] To ensure the accurate transmission of the motor power, the small pulley 31 is sleeved on the output end of the motor 21, and the large pulley 32 and the small synchronous pulley 33 are sleeved on the transmission shaft 141 in the order from top to bottom.

[0038] To achieve the stable rotation of the sleeve, a head spindle 35 is sleeved in the middle of the large synchronous pulley 34, and its top end is fixed by a nut and a bearing. The head spindle 35 passes through another bearing and is connected to the sleeve 18, so that the large synchronous pulley 34 can drive the sleeve 18 to rotate stably and precisely through the head spindle 35.

[0039] To avoid vibrations and stress concentrations caused by imbalance during the rotation of the sleeve, a counterweight 4 is also installed on the periphery of the sleeve 18. The counterweight 4 is installed around the sleeve 18 in a detachable manner. The weight and shape of the counterweight 4 are designed according to the size, weight, and moment of inertia of the sleeve 18 to avoid vibrations and stress concentrations caused by imbalance.

[0040] To reduce the wear of the bearings inside the sleeve, multiple counterweights 4 are provided and distributed in the circumferential direction of the sleeve 18 to reduce the wear of the bearings inside the sleeve 18 and extend its service life.

[0041] To achieve precise control and speed regulation of the motor, an electric control box 16 and a frequency converter 17 are respectively provided on the left and right sides at one end of the frame 1 far from the sleeve 18. The electric control box 16 is used to control the start, stop, and speed regulation of the motor 21, and the frequency converter 17 is used to adjust the power supply frequency of the motor 21 to achieve stepless speed regulation of the motor 21.

[0042] To facilitate the installation, maintenance, and position adjustment of the motor, a detachable connection is adopted between the first support plate 12 and the motor base plate seat 15, and a detachable connection is adopted between the motor 21 and the motor base plate seat 15. The motor base plate seat 15 is fixed to the motor 21 in an inclined state. The lower side is fixed up and down by a lead screw 151, and the upper side is fixed by a bolt 152, and an adjustment hole 153 is also provided at the connection of the bolt 152.

[0043] In this application, the motor 21 is used as the power source. The output end of the motor 21 drives the small pulley 31 to rotate. The small pulley 31 drives the large pulley 32 to rotate through the V-belt 36. The large pulley 32 and the small synchronous pulley 33 are installed on the intermediate bearing seat 14. The small synchronous pulley 33 drives the large synchronous pulley 34 to rotate through the transmission belt 37. Then, combined with the head spindle 35 sleeved in the middle of the large synchronous pulley 34, one end of the head spindle 35 is fixed to the large synchronous pulley 34 through a bearing and a nut, and the other end is connected to the sleeve 18 through another bearing. The rotation of the large synchronous pulley 34 is transmitted to the sleeve 18 through the head spindle 35, driving the sleeve 18 to perform precise running-in.

[0044] This application adopts a multi-stage transmission system and combines with the frequency converter 17 to achieve stepless speed regulation, enabling the sleeve 18 to be gradually run-in at different speeds. Compared with the traditional single-speed running-in, it can more comprehensively remove the assembly stress, improve the surface finish and fitting accuracy of the bearing, thereby improving the running-in efficiency and significantly shortening the running-in time.

[0045] The overall structure of this application is designed compactly, greatly saving the occupied space, making the workshop layout more reasonable. Moreover, the inclined design and detachable connection method of the motor base seat 15, combined with the adjustment holes 153 at the connection of the bolts 152, make the installation, maintenance and position adjustment of the motor 21 more convenient.

[0046] The detachable installation method of the counterweight 4 in this application is also convenient for flexible adjustment according to needs. By reasonably configuring the weight and position of the counterweight 4, the centrifugal force during the rotation of the sleeve 18 can be effectively balanced, reducing vibration and stress concentration, thereby reducing the risk of eccentric wear, significantly extending the service life of the sleeve 18 bearing, and ensuring the stable overall performance of the circular knitting machine.

[0047] The use of the frequency converter 17 in this application realizes the stepless speed regulation of the motor 21, enabling the equipment to adapt to different specifications of the sleeve 18 and diverse running-in requirements, improving the flexibility of production, and meeting the requirements of different production tasks.

[0048] In this application, the motor base seat 15 is installed obliquely, which can not only facilitate the operator to install, disassemble and maintain the motor 21, but also conveniently adjust the position and angle of the motor 21, ensure the alignment of the output shaft of the motor 21 with the center of the pulley, reduce vibration and noise during the transmission process, and can also adapt to different working conditions, adjust according to different speeds, loads, etc., or change the belt tension by adjusting the position of the motor 21 to ensure the stable operation of the transmission device 3, improving the adaptability and versatility of the equipment.

[0049] The V-belt 36 is adopted between the pulleys of the present application. Its cross-section is trapezoidal, generating a large frictional force, suitable for transmitting large torque and power, with a high transmission efficiency, capable of effectively preventing slipping, ensuring stable power output, and is mostly used in occasions where stable transmission is required; the transmission belt 37 adopted between the synchronous pulleys has a rectangular or circular cross-section, with stable transmission, low noise and certain elasticity, capable of buffering vibration and impact, applicable to the transmission links that require buffering and shock absorption, and can reduce the vibration transmission during the transmission process and improve the transmission stability.

[0050] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0051] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A circular knitting machine sleeve running-in device, characterized in that: It includes: A frame (1), the frame (1) serving as a basic supporting structure of the entire running-in device, a through hole being provided on the left side of the frame (1), a sleeve (18) being rotatably provided in the through hole, a support seat (11) being provided on the right side of the frame (1) for support, an intermediate bearing seat (14) and a motor bottom plate seat (15) being provided on the support seat (11); A power device (2), the power device (2) comprising a motor (21), the motor (21) being used to provide power and being fixed to the frame (1) via a motor base plate seat (15); A transmission device (3), the transmission device (3) comprising a pulley assembly, a synchronous wheel assembly and a transmission shaft (141) on an intermediate bearing seat (14), wherein the power provided by the power device (2) is transmitted to the sleeve (18) through the pulley assembly, the transmission shaft (141) and the synchronous wheel assembly in sequence, thereby driving the sleeve (18) to rotate.

2. A circular knitting machine sleeve running-in device according to claim 1, characterized in that: The base of the support seat (11) is I-shaped, with a first support plate (12) extending vertically from the middle position thereof, a second support plate (13) being provided on one side of the first support plate (12) close to the sleeve (18), a motor base plate (15) being provided on the other side of the first support plate (12), and an intermediate bearing seat (14) being sleeved inside the second support plate (13).

3. A circular knitting machine sleeve running-in device according to claim 1, characterized in that: The pulley assembly is divided into a small pulley (31), a large pulley (32) and a V-belt (36); the synchronous wheel assembly is divided into a small synchronous wheel (33), a large synchronous wheel (34) and a transmission belt (37); the small pulley (31) is connected to the large pulley (32) through the V-belt (36); the small synchronous wheel (33) is connected to the large synchronous wheel (34) through the transmission belt (37).

4. A circular knitting machine sleeve running-in device according to claim 3, characterized in that: The small belt pulley (31) is sleeved on the output end of the motor (21), and the large belt pulley (32) and the small synchronous wheel (33) are sleeved on the transmission shaft (141) in order from top to bottom.

5. A circular knitting machine sleeve running-in device according to claim 4, characterized in that: The large synchronous wheel (34) is sleeved with a head spindle (35) in the middle and its top end is fixed by a nut and a bearing. The head spindle (35) passes through another bearing and is connected to the sleeve (18), so that the large synchronous wheel (34) can drive the sleeve (18) to rotate stably and accurately through the head spindle (35).

6. A circular knitting machine sleeve running-in device according to claim 1, characterized in that: A counterweight block (4) is also installed on the periphery of the sleeve (18). The counterweight block (4) is installed around the sleeve (18) in a detachable manner. The weight and shape of the counterweight block (4) are designed according to the size, weight and moment of inertia of the sleeve (18) to avoid vibration and stress concentration caused by imbalance.

7. A circular knitting machine sleeve running-in device according to claim 6, characterized in that: The counterweight blocks (4) are provided in plurality and distributed in the circumferential direction of the sleeve (18), and are used to reduce the wear of the bearing inside the sleeve (18) and thus extend its service life.

8. A circular knitting machine sleeve running-in device according to claim 1, characterized in that: The frame (1) is provided with an electric control box (16) and a frequency converter (17) on the left and right sides of an end away from the sleeve (18), respectively; the electric control box (16) is used to control the start, stop and speed regulation of the motor (21); the frequency converter (17) is used to adjust the power supply frequency of the motor (21) to achieve stepless speed regulation of the motor (21).

9. A circular knitting machine sleeve running-in device according to claim 2, characterized in that: The first support plate (12) and the motor base plate seat (15) are detachably connected, and the motor (21) and the motor base plate seat (15) are detachably connected. The motor base plate seat (15) is fixed to the motor (21) in an inclined state, with the lower side being fixed up and down by a screw rod (151), and the higher side being fixed by a bolt (152), and an adjustment hole (153) being provided at the connection of the bolt (152).

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