Circular knitting machine and winding system

Abstract

The utility model relates to big circle machine technical field discloses a big circle machine cloth reel system. The utility model discloses big circle machine cloth reel system, include: frame, rubber roller axle, guide roller, winding roller, traction servo motor, winding servo motor and inductor, and the both ends of rubber roller axle and guide roller are arranged on the first opening of frame side plate, and rubber roller axle includes: traction roller and support roller, and traction roller is connected with traction servo motor, and support roller is connected with winding servo motor, and winding roller is placed on two support rollers, and inductor sets up on the frame, and monitors the rotation state of rubber roller axle. Big circle machine cloth reel system of the utility model, inductor controls the rotation state of traction roller and support roller, when the servo drive mechanism breaks down, causes traction roller and / or support roller to stop rotation, and inductor sends the signal to big circle machine controller, and each mechanism of big circle machine stops working, and the equipment shutdown alarm, guarantees the safety, reduces the loss to prevent the accident from happening.

Description

Technical Field

[0001] This utility model relates to the field of circular knitting machine technology, specifically to a circular knitting machine fabric winding system. Background Technology

[0002] Circular knitting machines, also known as circular weft knitting machines, have developed rapidly and gained widespread use due to their numerous loop-forming systems, high speed, high output, rapid pattern changes, good fabric quality, fewer processes, and strong product adaptability.

[0003] A circular knitting machine includes a weaving mechanism and a fabric winding system (winding machine). The winding system includes a traction mechanism and a take-up mechanism. The weaving mechanism of the circular knitting machine weaves the fabric, and the woven fabric is gripped and pulled by the traction rollers of the traction mechanism, then wound onto the take-up rollers of the winding mechanism to form a fabric roll. The rotation of the rollers in both the traction and take-up mechanisms of the fabric winding system is driven by servo motors.

[0004] The inventors of this application discovered that the servo transmission mechanism of a circular knitting machine experiences wear during high-speed operation. When the servo transmission mechanism of the fabric winding system malfunctions, causing a roller to stop rotating, the fabric woven by the circular knitting machine will accumulate in a certain area, causing equipment failure and even safety accidents. Utility Model Content

[0005] The purpose of this utility model is to provide a large circular knitting machine system to solve the problems mentioned in the background art.

[0006] This utility model embodiment provides a large circular knitting machine system, including: a frame, a rubber roller shaft, a guide roller, a take-up roller, a traction servo motor, a take-up servo motor, and a sensor;

[0007] The traction servo motor and the winding servo motor are respectively mounted on the frame;

[0008] The frame is provided with a left side plate and a right side plate;

[0009] The two ends of the rubber roller shaft and the guide roller are respectively inserted through the first openings of the left side plate and the right side plate;

[0010] The rubber roller shaft includes: a traction roller and a support roller;

[0011] The two traction rollers are arranged in parallel and are connected to the traction servo motor for clamping and pulling the fabric.

[0012] The two support rollers are arranged in parallel intervals and are connected to the winding servo motor, which drives the support rollers to rotate.

[0013] The take-up roller is placed on the two support rollers and is mounted on the frame. When the support rollers rotate, they drive the take-up roller and the roll of fabric formed therefrom to rotate.

[0014] The sensor is mounted on the frame and electrically connected to the controller of the circular knitting machine. It is used to send a signal to the controller of the circular knitting machine when it senses that the traction roller and / or the support roller has stopped rotating.

[0015] Based on the above scheme, the circular knitting machine system of this utility model, through the setting of a frame, rubber roller shaft, guide roller, take-up roller, traction servo motor, take-up servo motor, and sensors, has the two ends of the rubber roller shaft and guide roller passing through the left and right side plates of the frame. The rubber roller shaft includes a traction roller and a support roller. The traction roller is connected to the traction servo motor, and the support roller is connected to the take-up servo motor. The take-up roller is placed on the two support rollers. The sensors are set on the frame to monitor the rotation status of the traction roller and support roller. The circular knitting machine system of this utility model detects and monitors the rotation status of the traction roller and support roller through the sensors. When the servo transmission mechanism malfunctions, causing the traction roller and / or support roller to stop rotating, the sensors send a signal to the controller of the circular knitting machine. The controller controls all mechanisms of the circular knitting machine to stop working, the equipment stops operating, ensures equipment safety, prevents accidents, and reduces production losses.

[0016] In one feasible solution, the side plate of the frame is provided with a fixing flange;

[0017] The fixed flange is located at the first opening and is equipped with a self-aligning ball bearing. The traction roller, the support roller, and the guide roller are respectively mounted on the self-aligning ball bearing.

[0018] One feasible solution also includes: a mounting base and a metal sensor ring;

[0019] The mounting base is disposed on the fixed flange, and the metal sensor ring is sleeved on the rubber roller shaft, corresponding to the mounting base;

[0020] The metal sensor ring has multiple notches evenly distributed along the circumference.

[0021] The sensor is a photoelectric sensor, which is mounted on the mounting base and is used to send a pulse signal to the controller when the notch is detected.

[0022] In one feasible embodiment, the metal sensor ring is provided with a fixing protrusion, which is fixed to the rubber roller shaft by a fixing set screw.

[0023] One feasible solution also includes: a dust cover;

[0024] The dust cover is mounted on the mounting base and is used to shield the photoelectric sensor.

[0025] In one feasible solution, the mounting base is semi-circular and has a protrusion;

[0026] The dust cover includes: a semi-circular bottom plate and a surrounding barrier;

[0027] The semi-circular base plate is fixed to the protrusion, and the enclosure forms a shield for the photoelectric sensor.

[0028] One feasible solution also includes: a tension roller and a tension sensor;

[0029] Two tension sensors are respectively disposed on the left side plate and the right side plate. The protruding ring of the tension sensor is embedded in the second opening of the side plate. The two ends of the tension roller are respectively inserted into the self-aligning ball bearings of the tension sensor and are located between the traction roller and the guide roller.

[0030] The tension sensor is electrically connected to the controller of the circular knitting machine and is used to send a signal to the controller when the fabric tension exceeds a preset value.

[0031] One feasible solution also includes: a fixing base;

[0032] The diameter of the second opening on the left side plate is larger than the outer diameter of the tension sensor;

[0033] The fixing base is located at the second opening on the left side plate, and the tension sensor is mounted on the fixing base.

[0034] In one feasible solution, the diameter of the first opening on the left side plate is larger than the outer diameter of the rubber roller shaft, so that the rubber roller shaft can be pulled out from the first opening. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the large circular knitting machine system in an embodiment of this utility model;

[0037] Figure 2 This is an exploded view of the circular knitting machine system in an embodiment of the present invention;

[0038] Figure 3As described in the embodiments of this utility model Figure 2 A magnified view of a portion of the image;

[0039] Figure 4 As described in the embodiments of this utility model Figure 2 Another enlarged view of a portion of the image;

[0040] Figure 5 This is a schematic diagram of the left side plate in an embodiment of the present utility model;

[0041] Figure 6 This is a schematic diagram of the sensor installation in an embodiment of the present utility model;

[0042] Figure 7 As described in the embodiments of this utility model Figure 6 A magnified view of a portion of the image;

[0043] Figure 8 This is a schematic diagram of the installation of the tension sensor in an embodiment of this utility model;

[0044] Figure 9 This is a schematic diagram of the fabric winding path in an embodiment of the present invention.

[0045] Numbering on the map:

[0046] 101. First opening; 102. Second opening; 11. Left side plate; 12. Right side plate; 13. Fixed flange; 131. Self-aligning ball bearing; 21. Traction roller; 22. Support roller; 3. Guide roller; 4. Take-up roller; 5. Sensor; 61. Mounting base; 611. Protrusion; 62. Metal sensor ring; 621. Notch; 622. Fixing ring; 63. Fixing top screw; 64. Dust cover; 641. Semi-circular bottom plate; 642. Enclosure; 71. Tension roller; 72. Tension sensor; 721. Protruding ring; 73. Fixing ring; 100. Fabric; 200. Fabric roll. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0048] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0051] As described in the background section of this application, a circular knitting machine includes a weaving mechanism and a fabric winding system (fabric winding machine). The fabric winding system includes a traction mechanism and a take-up mechanism. The weaving mechanism of the circular knitting machine weaves the fabric, and the woven fabric is held and pulled by the traction rollers of the traction mechanism, and then wound onto the take-up rollers of the take-up mechanism of the fabric winding system to form a fabric roll. The rotation of the rollers of the traction mechanism and the take-up mechanism of the fabric winding system is driven by servo motors.

[0052] The inventors of this application discovered that the servo transmission mechanism of a circular knitting machine experiences wear during high-speed operation. When the servo transmission mechanism of the fabric winding system malfunctions, causing a roller to stop rotating, the fabric woven by the circular knitting machine will accumulate in a certain area, causing equipment failure and even safety accidents.

[0053] To address the aforementioned problems, the inventors of this application have proposed a technical solution, the specific embodiments of which are as follows:

[0054] Figure 1 This is a schematic diagram of the large circular knitting machine system in an embodiment of this utility model. Figure 2 This is an exploded view of the circular knitting machine system in an embodiment of this utility model. Figure 3 As described in the embodiments of this utility model Figure 2 A magnified view of a portion of the image. Figure 4 As described in the embodiments of this utility model Figure 2 Another enlarged view of a part, Figure 5 This is a schematic diagram of the left side plate in an embodiment of the present utility model. Figure 6 This is a schematic diagram of the sensor installation in an embodiment of the present invention. Figure 7 As described in the embodiments of this utility model Figure 6 A magnified view of a portion of the image. Figure 8 This is a schematic diagram of the installation of the tension sensor in an embodiment of this utility model. Figure 9 This is a schematic diagram of the fabric winding path in an embodiment of the present invention.

[0055] like Figures 1 to 9 As shown, the large circular knitting machine system of this embodiment includes: a frame, a rubber roller shaft, a guide roller 3, a take-up roller 4, a traction servo motor, a take-up servo motor, and a sensor 5.

[0056] The frame is equipped with a left side plate 11 and a right side plate 12.

[0057] The traction servo motor (not shown in the figure) and the winding servo motor (not shown in the figure) are respectively mounted on one side plate of the frame.

[0058] The left side plate 11 and the right side plate 12 of the frame are provided with a plurality of first openings 101, and the two ends of the rubber roller shaft and the guide roller 3 are respectively rotatably inserted through the first openings 101 of the left side plate 11 and the right side plate 12.

[0059] The rubber roller shaft includes: traction roller 21 and support roller 22.

[0060] Two traction rollers 21 are provided, which are set at the top of the frame and arranged in parallel. They are connected to the traction servo motor through a transmission mechanism, and the traction servo motor drives the traction rollers 21 to rotate. The two traction rollers 21 clamp the fabric 100 woven by the circular knitting mechanism. When the two traction rollers 21 rotate, they pull the fabric 100, causing the fabric 100 to be conveyed downward.

[0061] There are two support rollers 22, which are set at the bottom of the frame and arranged in parallel intervals. They are connected to the winding servo motor through a transmission mechanism, and the winding servo motor drives the support rollers 22 to rotate.

[0062] The take-up roller 4 is placed on two support rollers 22, and its two ends are movably mounted on the left and right side plates of the frame. The support rollers 22 support the take-up roller 4, and the fabric 100 pulled by the traction roller 21 is guided by the guide roller 3 and then wound onto the take-up roller 4. When the support rollers 22 rotate, the support rollers 22 drive the take-up roller 4 to rotate under the action of friction. The take-up roller 4 winds up the fabric 100 to form a fabric roll 200, and then the support rollers 22 drive the fabric roll 200 to rotate to continue winding.

[0063] Two sensors 5 are provided, and the two sensors 5 are respectively installed on a traction roller 21 and a support roller 22. The sensors 5 are preferably installed on the active traction roller that is connected to the traction servo motor and the active support roller that is connected to the winding servo motor. The sensors 5 are electrically connected to the controller of the large circular knitting machine.

[0064] Sensor 5 is used to detect and monitor the rotation status of traction roller 21 and support roller 22. When the servo transmission mechanism malfunctions, sensor 5 detects that one of the traction roller 21 and support roller 22 has stopped rotating, or detects that both the traction roller 21 and support roller 22 have stopped rotating, and sends a signal to the controller of the large circular kiln. The controller then controls all mechanisms of the large circular kiln to stop working to ensure equipment safety.

[0065] As can be seen from the above, the circular knitting machine system of this embodiment, through the arrangement of a frame, rubber roller shafts, guide rollers, take-up rollers, traction servo motors, take-up servo motors, and sensors, has the rubber roller shaft and guide rollers mounted on the left and right side plates of the frame. The rubber roller shaft includes a traction roller and a support roller. The traction roller is connected to the traction servo motor, and the support roller is connected to the take-up servo motor. The take-up roller is placed on the two support rollers. The sensors are mounted on the frame to monitor the rotation status of the traction rollers and support rollers. In this embodiment, the circular knitting machine system monitors the rotation status of the traction rollers and support rollers through sensors. When a servo transmission mechanism malfunctions, causing the traction rollers and / or support rollers to stop rotating, the sensors send a signal to the controller of the circular knitting machine. The controller then stops all mechanisms of the circular knitting machine, halting the equipment's operation and ensuring equipment safety to prevent accidents.

[0066] Optionally, in this embodiment of the large circular knitting machine system, the left side plate 11 and right side plate 12 of the frame are provided with fixing flanges 13, which are located at the first opening 101 of the left and right side plates.

[0067] A self-aligning ball bearing 131 is embedded in the center of the fixed flange 13, and the two ends of the traction roller 21, support roller 22 and guide roller 3 are respectively mounted on the self-aligning ball bearing 131 of the fixed flange 13.

[0068] In this embodiment, the fixed flange is equipped with a self-aligning ball bearing. The traction roller, support roller and guide roller are respectively mounted on the self-aligning ball bearing of the fixed flange. The self-aligning ball bearing can compensate for the mechanical errors during the installation of each roller shaft, which facilitates the quick installation of each roller shaft.

[0069] Furthermore, such as Figure 6 and Figure 7 As shown, the large circular knitting machine system in this embodiment also includes: a mounting base 61 and a metal sensor ring 62.

[0070] Sensor 5 monitors the rotational state of traction roller 21 and support roller 22, and a metal sensor ring 62 is mounted on the monitored rubber roller shafts (traction roller 21 and support roller 22). Mounting base 61 is mounted on fixed flange 13, corresponding to the position of metal sensor ring 62.

[0071] The metal sensor ring 62 has multiple notches 621 on its circumferential sidewall, and the multiple notches 621 are evenly spaced along the circumferential direction.

[0072] Sensor 5 is a photoelectric sensor, mounted on mounting base 61. The metal sensor ring 62 rotates together with the monitored rubber roller shaft, and the photoelectric sensor sends a pulse signal to the controller of the large circular knitting machine when it senses the passage of the notch 621 of the metal sensor ring 62.

[0073] In this embodiment, the photoelectric sensor sends multiple (6) pulse signals to the large circular kiln controller for each rotation of the monitored rubber roller shaft (traction roller and support roller). If any pulse signal is missing, the equipment will automatically stop to ensure safety. The sensor (photoelectric sensor) is set on the fixed flange, which facilitates the installation and replacement of the sensor.

[0074] Furthermore, in the circular knitting machine system of this embodiment, a fixed protruding ring 622 is provided on one side of the metal sensor ring 62.

[0075] The metal sensor ring 62 is sleeved on the rubber roller shaft (traction roller 21 and support roller 22). The fixing protrusion 622 of the metal sensor ring 62 is fixed on the rubber roller shaft by multiple fixing set screws 63, so that the metal sensor ring 62 rotates together with the rubber roller shaft.

[0076] Furthermore, the large circular knitting machine system in this embodiment also includes a dust cover 64.

[0077] The dust cover 64 is installed on the mounting base 61 to cover the sensor 5 (photoelectric sensor) and ensure the stable operation of the photoelectric sensor.

[0078] Furthermore, in the large circular knitting machine system of this embodiment, the mounting base 61 is semi-circular, and a protrusion 611 is provided on one side of the end face of the mounting base 61.

[0079] The dust cover 64 includes a semi-circular base plate 641 and a barrier 642, with the barrier 642 disposed on one side of the semi-circular base plate 641.

[0080] The sensor 5 (photoelectric sensor) is set in the recess of the mounting base 61, the semi-circular bottom plate 641 of the dust cover 64 is fixed on the protrusion 611 of the mounting base 61, and the enclosure 642 of the dust cover 64 forms a shield for the photoelectric sensor.

[0081] In this embodiment, the photoelectric sensor is fixed in the recessed part of the mounting base, and the semi-circular bottom plate of the dust cover is fixed in the protruding part of the mounting base, thereby reducing the overall thickness of the mounting base and the dust cover, and reducing the installation space occupied by the mounting base and the sensor.

[0082] Optionally, the circular knitting machine system in this embodiment further includes: a tension roller 71 and a tension sensor 72.

[0083] The left side plate 11 and the right side plate 12 of the frame are respectively provided with second openings 102.

[0084] The tension sensor 72 has a protruding ring 721 on its end face, and the tension sensor 72 is equipped with a self-aligning ball bearing.

[0085] Two tension sensors 72 are provided, which are respectively installed on the left side plate 11 and the right side plate 12 of the frame, and the protruding ring 721 of the tension sensor 72 is inserted into the second opening 102 of the left and right side plates.

[0086] The two ends of the tension roller 71 are respectively inserted into the self-aligning ball bearings of the tension sensor 72, and the tension roller 71 is located between the traction roller 21 and the guide roller 3.

[0087] Tension sensor 72 is electrically connected to the controller of the large circular knitting machine.

[0088] like Figure 9 As shown, in this embodiment, the fabric pulled by the traction roller is guided by the tension roller and the guide roller and then wound onto the take-up roller. The tension sensor detects the tension of the fabric during the conveying process. When the detected fabric tension exceeds the preset value, it sends a signal to the controller of the circular knitting machine. The controller controls and adjusts the speed of the traction servo motor or the take-up servo motor to keep the fabric tension within the set range, thereby enhancing the safety of the equipment.

[0089] Furthermore, such as Figure 2 and Figure 3 As shown, the large circular knitting machine system in this embodiment also includes: a fixed base 73.

[0090] The diameter of the second opening 102 on the left side plate 11 of the frame is larger than the outer diameter of the tension sensor 72.

[0091] The mounting base 73 is mounted on the left side plate 11 of the frame, located at the second opening 102. The tension sensor 72, located to the left of the tension roller 71, passes through the second opening 102 of the left side plate 11 and is fixed to the mounting base 73.

[0092] In this embodiment, the diameter of the second opening on the left side plate of the frame is larger than the outer diameter of the tension sensor, so that the tension roller and the tension sensor can be directly pulled out from the second opening on the left side plate, which facilitates the replacement of the tension roller and the tension sensor.

[0093] Furthermore, in the large circular knitting machine system of this embodiment, the diameter of the first opening 101 on the left side plate 11 of the frame is larger than the outer diameter of the rubber roller shaft. That is, the diameter of the first opening 101 for fixing the traction roller 21 is larger than the outer diameter of the traction roller, and the diameter of the first opening 101 for fixing the inner support roller 22 is larger than the outer diameter of the support roller 22. When the traction roller 21 and the support roller 22 need to be replaced, they can be directly pulled out from the first opening 101 on the left side plate 11, which facilitates the replacement of the rubber roller shaft. The support roller located on the outer side can be tilted outward after the bearing is removed, which is convenient for replacement.

[0094] In this utility model, unless otherwise explicitly specified and limited, the first feature being "on" or "below" the second feature can mean that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact through an intermediate medium.

[0095] Furthermore, "above," "on top of," and "above" the first feature in relation to the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "under," and "beneath" the first feature in relation to the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0096] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A large circular knitting fabric winding machine system, characterized in that, include: The frame, rubber roller shaft, guide roller, take-up roller, traction servo motor, take-up servo motor, and sensors; The traction servo motor and the winding servo motor are respectively mounted on the frame; The frame is provided with a left side plate and a right side plate; The two ends of the rubber roller shaft and the guide roller are respectively inserted through the first openings of the left side plate and the right side plate; The rubber roller shaft includes: a traction roller and a support roller; The two traction rollers are arranged in parallel and are connected to the traction servo motor for clamping and pulling the fabric. The two support rollers are arranged in parallel intervals and are connected to the winding servo motor, which drives the support rollers to rotate. The take-up roller is placed on the two support rollers and is mounted on the frame. When the support rollers rotate, they drive the take-up roller and the roll of fabric formed therefrom to rotate. The sensor is mounted on the frame and electrically connected to the controller of the circular knitting machine. It is used to send a signal to the controller of the circular knitting machine when it senses that the traction roller and / or the support roller has stopped rotating.

2. The circular knitting machine system according to claim 1, characterized in that, The side plates of the frame are equipped with fixing flanges; The fixed flange is located at the first opening and is equipped with a self-aligning ball bearing. The traction roller, the support roller, and the guide roller are respectively mounted on the self-aligning ball bearing.

3. The circular knitting machine system according to claim 2, characterized in that, Also includes: Mounting base and metal sensor ring; The mounting base is disposed on the fixed flange, and the metal sensor ring is sleeved on the rubber roller shaft, corresponding to the mounting base; The metal sensor ring has multiple notches evenly distributed along the circumference. The sensor is a photoelectric sensor, which is mounted on the mounting base and is used to send a pulse signal to the controller when the notch is detected.

4. The circular knitting machine system according to claim 3, characterized in that, The metal sensor ring is provided with a fixing protrusion, which is fixed to the rubber roller shaft by a fixing set screw.

5. The circular knitting machine system according to claim 3, characterized in that, Also includes: Dust cover; The dust cover is mounted on the mounting base and is used to shield the photoelectric sensor.

6. The circular knitting machine system according to claim 5, characterized in that, The mounting base is semi-circular and has a protrusion. The dust cover includes: a semi-circular bottom plate and a surrounding barrier; The semi-circular base plate is fixed to the protrusion, and the enclosure forms a shield for the photoelectric sensor.

7. The circular knitting machine system according to claim 1, characterized in that, Also includes: Tension roller and tension sensor; The two tension sensors are respectively disposed on the left side plate and the right side plate. The protruding ring of the tension sensor is embedded in the second opening of the side plate. The two ends of the tension roller are respectively inserted into the self-aligning ball bearings of the tension sensor and are located between the traction roller and the guide roller. The tension sensor is electrically connected to the controller of the circular knitting machine and is used to send a signal to the controller when the fabric tension exceeds a preset value.

8. The circular knitting machine system according to claim 7, characterized in that, Also includes: Fixed base; The diameter of the second opening on the left side plate is larger than the outer diameter of the tension sensor; The fixing base is located at the second opening on the left side plate, and the tension sensor is mounted on the fixing base.

9. The circular knitting machine system according to claim 1, characterized in that, The diameter of the first opening on the left side plate is larger than the outer diameter of the rubber roller shaft, so that the rubber roller shaft can be pulled out from the first opening.

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