Method and device for detecting large end and small end of bobbin of automatic winder

Abstract

The automatic winder comprises a bobbin yarn conveying device, a bobbin yarn releasing device and a controller, and is characterized in that a material detection sensor is installed at the end, close to the bobbin yarn releasing device, of the bobbin yarn conveying device; the method comprises the following steps: (1) when a cop conveying device conveys cop to a cop releasing device, if a material detection sensor senses that one end, close to the cop, of the cop contains a material different from that of a cop body, judging that the end is a cop big end; otherwise, the small ends are cop small ends; (2) the material detection sensor sends a signal to the controller; and (3) the controller controls the cop releasing device to adjust corresponding mechanical actions, so that the cop falls in the posture that the large end of the cop faces downwards so as to realize tube insertion. The large end and the small end of the cop are judged according to the material difference characteristic of the large end and the small end of the cop, external interference and misjudgment such as shaking in the cop walking process, hard waste attachment of the small end of the cop and poor cop forming are avoided, and the accuracy rate is high; and the structure is simple, and the manufacturing cost is low.

Description

Technical Field

[0001] The invention belongs to the technical field of textile machinery manufacturing, and relates to the improvement of an automatic winding machine, in particular to a method and a device for detecting the large and small ends of a yarn tube of the automatic winding machine. Background Art

[0002] The automatic winding machine is a high-tech textile machinery product that integrates machinery, electricity, instrumentation, gas and hydraulics. According to different usage requirements, the automatic winding machine is currently divided into large yarn storage type automatic winding machine and fine winding type automatic winding machine. Among them, the large yarn storage type automatic winding machine only needs to manually push the full bobbin to the hydraulic lifting mechanism of the equipment through the bobbin trolley, and then the entire production process from bobbin supply, spinning, single spindle winding, circulation transportation, automatic bobbin doffing and recycling can be realized. Automation and intelligence.

[0003] In this complex system, the bobbin supply system is the core functional unit for realizing automatic yarn insertion. It arranges the disordered bobbin yarns into a single row through a vibration plate and a vibration basin with specific curve characteristics, and sends them into the insertion channel in turn. After judging the big and small ends of the bobbin yarn, adjusting the bobbin yarn posture, and guiding mechanism, it ensures that the bobbin yarn is inserted into the tray with the big end facing down, thus realizing the automation of the insertion process.

[0004] The detection of the big and small ends of the yarn tube is a key technology to determine whether the insertion is successful or not. At present, the methods for judging the big and small ends of the yarn tube are based on the principle of detecting the diameter of the big and small ends of the yarn tube, which are divided into optical detection (such as the door sensor mentioned in Chinese patent CN201610253639.X, which is judged by calculating the occlusion area) and mechanical detection (according to the difference in the diameter of the big and small ends, a mechanical limit mechanism is designed). However, the optical diameter detection method is susceptible to external interference such as shaking of the yarn tube during walking, attachment of the yarn back at the small end of the yarn tube (especially core-spun yarn), and poor tube yarn formation, resulting in a decrease in accuracy and cannot adapt well to production needs. In addition, the optical image sensor used in this detection is relatively expensive, which increases the cost of equipment production. The mechanical detection method has a more complex structure and is affected by the formation of the fine yarn tube yarn. The above judgment methods all directly judge the big and small ends of the yarn tube based on the diameter of the outer shape of the two ends of the tube yarn.

[0005] The tube insertion method of the automatic winding machine tube insertion device designed by the Chinese patent (CN201610253639.X) is that on the tray-type automatic winding machine, the bobbin passes through the bobbin size head judgment device during the transmission process on the bobbin conveying device, and the bobbin size head judgment device judges the front and rear directions of the bobbin size head and transmits the judgment result to the control system. The bobbin conveying device conveys the bobbin to the first support body in the support position in the bobbin releasing device. When there is a tray waiting for tube insertion below the guide positioning device, the control system controls the telescopic driving mechanism to drive the telescopic action of the first support body, the second support body, and the third support body according to the judgment result of the bobbin size head judgment device. The first support body leaves the supporting position to release the bobbin to fall, and then the second support body or the third support body blocks one end of the bobbin small head during the falling process, so that the bobbin big head end falls downward into the guide positioning device and is inserted on the tray. Then, the bobbin conveying device conveys the next bobbin to the bobbin releasing device, and the tube insertion action is completed in sequence.

[0006] Usually, a metal ring is embedded on the big end of the bobbin body, but there is no metal ring on the small end of the bobbin body, that is, the materials of the big and small ends of the bobbin are different. How to provide a method and device for detecting the big and small ends of the bobbin yarn of an automatic winding machine, without directly detecting the size of the two ends of the bobbin yarn, but taking a different approach, using the material difference characteristics of the big and small ends of the bobbin yarn to judge the big and small ends of the bobbin yarn, without being affected by external interference and misjudgment such as shaking of the bobbin yarn during travel, attachment of waste yarn at the small end of the bobbin yarn, and poor bobbin yarn formation, with high accuracy, easy operation and use, simple structure, and low manufacturing cost. This is a problem that needs to be solved urgently in the current technical field. Summary of the invention

[0007] In order to solve the problems and shortcomings of the prior art, the present invention provides a method and a device for detecting the large and small ends of the bobbin yarn of an automatic winding machine. The method and the device utilize the material difference characteristics of the large and small ends of the bobbin yarn to judge the large and small ends of the bobbin yarn. The method is not subject to external interference and misjudgment such as shaking of the bobbin yarn during traveling, attachment of waste yarn at the small end of the bobbin yarn, and poor bobbin yarn forming, and has a high accuracy rate. The detection device is easy to operate and use, and has a simple structure and a low manufacturing cost.

[0008] The objective of the present invention is achieved through the following technical solutions: A method for detecting the large and small ends of a bobbin of an automatic winding machine, the automatic winding machine comprising a frame, a bobbin conveying device, a bobbin releasing device and a controller, characterized in that a material detection sensor is installed on the frame near one end of the bobbin releasing device, for detecting whether the material of the bobbin end closer to the bobbin releasing device is different from that of the bobbin body, and the detection method comprises the following steps: Step 1: When the bobbin conveying device conveys the bobbin to the bobbin releasing device, if the material detection sensor senses that the bobbin near one end contains a material different from the bobbin body, the end close to the material detection sensor is judged to be the bobbin big end; if the material detection sensor fails to sense that the bobbin near the end contains a material different from the bobbin body, the end close to the material detection sensor is judged to be the bobbin small end; Step 2: The material detection sensor sends a signal to the controller indicating that the end of the bobbin close to the material detection sensor is the bobbin big end or the bobbin small end; Step 3: The controller controls the bobbin release device to adjust the corresponding mechanical action according to the signal sent by the material detection sensor, retracts the support for the entire bobbin, and at the same time blocks the small end of the falling bobbin, so that the bobbin falls with its large end facing downward to achieve tube insertion.

[0009] Furthermore, the tube yarn releasing device comprises a first support body, a second support body, and a third support body arranged above the guiding and positioning device, the first support body is located above the second support body and the third support body, and the guiding and positioning device and the tray are arranged in sequence below the tube yarn releasing device, the first support body comprises a rectangular supporting plate and a first telescopic driving mechanism, the second support body comprises a second supporting rod and a second telescopic driving mechanism, the third support body comprises a third supporting rod and a third telescopic driving mechanism, the material detection sensor is close to one end of the rectangular supporting plate, and the other end of the rectangular supporting plate is close to the output end of the conveyor belt in the tube yarn conveying device, the second supporting rod and the third supporting rod are arranged side by side, and the second supporting rod is close to the material detection sensor, a metal ring is embedded on the big end of the bobbin body, the material detection sensor is an inductive proximity switch, and the detection method comprises the following specific steps: Step 1: The conveyor belt in the bobbin conveying device conveys the bobbin to the rectangular support plate and stops moving. If the inductive proximity switch senses a metal ring on the proximal end of the bobbin, the end close to the inductive proximity switch is judged to be the big end of the bobbin; if the inductive proximity switch fails to sense a metal ring on the proximal end of the bobbin, the end close to the inductive proximity switch is judged to be the small end of the bobbin; Step 2: The inductive proximity switch sends a signal to the controller indicating that the end of the bobbin close to the inductive proximity switch is the bobbin big end or the bobbin small end; Step 3: The controller controls the bobbin releasing device to make corresponding actions according to the judgment result of the inductive proximity switch on the bobbin size, controls the first telescopic driving mechanism to drive the rectangular support plate to retract, releases the bobbin on it, and retracts the second support rod or the third support rod under the bobbin size end, and blocks the bobbin size end with the third support rod or the second support rod, so that the bobbin falls with its size end facing downward; Step 4: During the falling process, the bobbin first falls into the guide positioning device, which makes the bobbin head face downward in a vertical state, then falls from the lower port of the guide positioning device, and finally is inserted downward on the tray; Step 5: The bobbin conveying device then conveys the next bobbin to the bobbin releasing device, and the insertion action is completed in a cycle; Furthermore, a detection sensor I is arranged near one side of the conveyor belt in the bobbin conveying device, and a detection sensor II is arranged near one side of the bobbin releasing device. In the step 5, when the front end of the bobbin is about to reach the output end of the conveyor belt, the detection sensor I sends a bobbin arrival signal to the controller. If the detection sensor II detects that the bobbin on the rectangular supporting plate has not been released at this time, a bobbin signal is sent to the controller that there is a bobbin on the bobbin releasing device. The controller controls the bobbin conveying device to stop running. When the controller receives the bobbin signal sent by the detection sensor II that there is no bobbin on the rectangular supporting plate, the bobbin conveying device is started again to convey the bobbin to the rectangular supporting plate in the supporting position in the bobbin releasing device.

[0010] Another specific detection method for the large and small ends of the bobbin of an automatic winding machine of the present invention is to set a magnetic material on the large end of the bobbin body, and the material detection sensor is a magnetically controlled reed switch. The detection method includes the following specific steps: Step A: When the conveyor belt in the bobbin conveying device conveys the bobbin to the bobbin releasing device, if the magnetic-controlled reed switch senses that there is magnetic material on the proximal end of the bobbin, then the end close to the magnetic-controlled reed switch is judged to be the big end of the bobbin; if the magnetic-controlled reed switch fails to sense that there is magnetic material on the proximal end of the bobbin, then the end close to the magnetic-controlled reed switch is judged to be the small end of the bobbin; Step B: The magnetically controlled reed switch sends a signal to the controller indicating that the end of the bobbin close to the magnetically controlled reed switch is the bobbin big end or the bobbin small end; Step C: The controller controls the bobbin release device to adjust the corresponding mechanical action according to the signal sent by the magnetically controlled reed switch, retracts the support for the bobbin as a whole, and blocks the small end of the falling bobbin, so that the bobbin falls with its large end facing downward to achieve insertion.

[0011] The present invention discloses a device for detecting the large and small ends of a bobbin for an automatic winding machine. The automatic winding machine comprises a frame, a bobbin conveying device, a bobbin releasing device and a controller. The device is characterized in that a material detection sensor is installed on the frame close to one end of the bobbin releasing device to detect whether the end of the bobbin closer to the device has a material different from that of the bobbin body, and to judge whether the end of the bobbin closer to the device is the big end of the bobbin or the small end of the bobbin; the material detection sensor is connected to the controller, and the controller is used to receive information on the direction of the large and small ends of the bobbin sent by the material detection sensor, and to control the bobbin releasing device to adjust the corresponding mechanical action, so that in the process of the bobbin falling, only the small end of the bobbin is blocked, so that the big end of the bobbin falls with the big end of the bobbin facing downward.

[0012] An improvement to the above technical solution is that a metal ring is embedded on the large end of the bobbin body, and the material detection sensor is an inductive proximity switch.

[0013] Another improvement to the above technical solution is that a magnetic material is provided on the large end or the small end of the bobbin body, and the material detection sensor is a magnetically controlled reed switch.

[0014] Further improvement of the above technical solution: the tube yarn releasing device includes a first support body, a second support body, and a third support body arranged above the guiding and positioning device, the first support body is located above the second support body and the third support body, and the guiding and positioning device and the tray are arranged in sequence below the tube yarn releasing device, the first support body includes a rectangular supporting plate and a first telescopic driving mechanism, the second support body includes a second supporting rod and a second telescopic driving mechanism, the third support body includes a third supporting rod and a third telescopic driving mechanism, the material detection sensor is close to one end of the rectangular supporting plate, and the other end of the rectangular supporting plate is close to the output end of the conveyor belt in the tube yarn conveying device, the second support rod and the third support rod are arranged side by side, and the second support rod is close to the material detection sensor, the material detection sensor is installed on the frame through an adjustable mounting frame, and a buffer limit plate is installed on the frame in front of the material detection sensor.

[0015] Further improvement of the above technical solution: a detection sensor I is arranged near the side of the conveyor belt in the cop conveying device, and a detection sensor II is arranged near the side of the cop releasing device, and both the detection sensor I and the detection sensor II are connected to the controller; the detection sensor I and the detection sensor II are both inductive proximity switches or magnetically controlled reed switches.

[0016] The advantages and positive effects of the present invention compared with the prior art are: 1. The invention discloses a method for detecting the large and small ends of bobbins of an automatic winding machine, which avoids the influence of external factors such as poor bobbin forming, shaking of the bobbin during traveling, and attachment of waste yarn at the small end of the bobbin, which can significantly improve the accuracy of judging the large and small ends of the bobbin, reduce the insertion errors caused by misjudgment, and enhance the reliability and stability of the equipment operation.

[0017] 2. The present invention provides a method for detecting the large and small ends of bobbins of an automatic winding machine. Compared with the optical image diameter detection sensor, the detection mechanism proposed by the present invention can significantly reduce the material cost. At the same time, compared with the traditional mechanical detection method, the present invention does not increase the cost, thereby achieving cost-effectiveness optimization.

[0018] 3. The present invention provides a method for detecting the large and small ends of the yarn tube of an automatic winding machine. The detection method provided by the present invention belongs to the category of electronic detection. Compared with the mechanical detection method, its structure is simpler, and it has obvious advantages in installation and debugging, detection efficiency, detection accuracy, etc., which simplifies the maintenance of the product.

[0019] 4. The automatic winding machine yarn tube big and small end detection device of the present invention has a simple structure, low manufacturing cost, convenient installation, accurate detection and high detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view of an automatic winding machine bobbin big and small end judgment device used in a winding machine bobbin conveying device of the present invention; Figure 2 It is a schematic diagram of the bobbin on the conveyor belt in a device for judging the large and small ends of bobbins for an automatic winding machine of the present invention; Figure 3 It is a schematic diagram of the state where the bobbin big end of the bobbin is in the front on the bobbin releasing device in the bobbin big end judgment device of the automatic winding machine of the present invention; Figure 4 It is a schematic diagram of the state in which the bobbin small end of the bobbin is in the front on the bobbin releasing device in the bobbin big and small end judgment device of the automatic winding machine of the present invention; Figure 5 The present invention is a control flow chart of the device for judging the large and small ends of the yarn tubes of the automatic winding machine.

[0021] In the figure, 1, bobbin; 2, conveyor belt; 3, rectangular support plate; 4-1, third support rod; 4-2, second support rod; 5, buffer limit plate; 6, detection sensor II; 7, inductive proximity switch; 8, fixed guide device; 9, movable guide device; 10, tray; 11, detection sensor I; 12, lower support plate of bobbin. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings: See also Figure 1-Figure 5 The present invention provides an embodiment of a method for detecting the large and small ends of a bobbin of an automatic winding machine. The automatic winding machine comprises a frame, a bobbin conveying device, a bobbin releasing device and a controller. A material detection sensor is installed on the frame near one end of the bobbin releasing device to detect whether the end of the bobbin 1 closer to the bobbin releasing device has a material different from that of the bobbin body. The detection method comprises the following steps: Step 1: When the bobbin conveying device conveys the bobbin to the bobbin releasing device, if the material detection sensor senses that the bobbin 1 near one end contains a material different from the bobbin body, then the end near the material detection sensor is judged to be the bobbin big end; if the material detection sensor fails to sense that the bobbin near the end contains a material different from the bobbin body, then the end near the material detection sensor is judged to be the bobbin small end; Step 2: The material detection sensor sends a signal to the controller indicating that the end of the bobbin close to the material detection sensor is the bobbin big end or the bobbin small end; Step 3: The controller controls the bobbin release device to adjust the corresponding mechanical action according to the signal sent by the material detection sensor, retracts the support for the bobbin 1 as a whole, and blocks the small end of the falling bobbin, so that the bobbin falls with its large end facing downward to achieve tube insertion.

[0023] Further, the bobbin release device includes a first support body, a second support body, and a third support body arranged above the guide positioning device, the first support body is located above the second support body and the third support body, and the guide positioning device and the tray are arranged in sequence below the bobbin release device, the first support body includes a rectangular support plate 3 and a first telescopic drive mechanism, the second support body includes a second support rod 4-2 and a second telescopic drive mechanism, and the third support body includes a third support rod 4-1 and a third telescopic drive mechanism. Preferably, the first telescopic drive mechanism, the second telescopic drive mechanism and the third telescopic drive mechanism all use telescopic cylinders. The material detection sensor is close to one end of the rectangular support plate 3, and the other end of the rectangular support plate 3 is close to the output end of the conveyor belt 2 in the bobbin conveying device. The second support rod 4-2 and the third support rod 4-1 are arranged side by side, and the second support rod 4-2 is close to the material detection sensor. A metal ring is embedded on the big end of the bobbin 1, and the material detection sensor is an inductive proximity switch 7. The detection method includes the following specific steps: Step 1: The conveyor belt 2 in the bobbin conveying device conveys the bobbin 1 to the rectangular support plate 3 and stops moving. If the inductive proximity switch 7 senses a metal ring on the proximal end of the bobbin, the end close to the inductive proximity switch 7 is judged to be the big end of the bobbin; if the inductive proximity switch 7 fails to sense a metal ring on the proximal end of the bobbin, the end close to the inductive proximity switch 7 is judged to be the small end of the bobbin; Step 2: The inductive proximity switch sends a signal to the controller indicating that the end of the bobbin 1 close to the inductive proximity switch 7 is the bobbin big end or the bobbin small end; Step 3: The controller controls the bobbin releasing device to make corresponding actions according to the judgment result of the inductive proximity switch 7 on the bobbin size, controls the first telescopic driving mechanism to drive the rectangular support plate 3 to retract, releases the bobbin on it, and retracts the second support rod 4-2 or the third support rod 4-1 under the bobbin size, and blocks the bobbin size end with the third support rod 4-1 or the second support rod 4-2, so that the bobbin 1 falls with its size end facing downward; Step 4: During the falling process, the bobbin 1 first falls into the guide positioning device, which makes the bobbin 1 face downward in a vertical state, then falls from the lower port of the guide positioning device, and finally is inserted downward on the tray 10; Step 5: The bobbin conveying device then conveys the next bobbin 1 to the bobbin releasing device, and the insertion action is completed in a cycle.

[0024] Furthermore, a detection sensor I11 is arranged near one side of the conveyor belt 2 in the bobbin conveying device, and a detection sensor II6 is arranged near one side of the bobbin releasing device; in the above-mentioned step S 5, when the front end of the bobbin 1 is about to reach the output end of the conveyor belt, the detection sensor I11 sends a bobbin arrival signal to the controller, and if the detection sensor II6 detects that the bobbin 1 on the rectangular supporting plate 3 has not been released at this time, it sends a bobbin signal on the bobbin releasing device to the controller, and the controller controls the bobbin conveying device to stop running. When the controller receives the bobbin signal on the rectangular supporting plate 3 sent by the detection sensor II6, the bobbin conveying device is started to convey the bobbin to the rectangular supporting plate 3 in the supporting position in the bobbin releasing device.

[0025] Another method for detecting the large and small ends of a bobbin of an automatic winding machine of the present invention is to arrange a magnetic material on the large end of the bobbin body, and the material detection sensor is a magnetically controlled reed switch. The detection method comprises the following specific steps: Step A: When the conveyor belt in the bobbin conveying device conveys the bobbin 1 to the bobbin releasing device, if the magnetic-controlled reed switch senses that there is magnetic material on the proximal end of the bobbin, then the end close to the magnetic-controlled reed switch is judged to be the bobbin big end; if the magnetic-controlled reed switch fails to sense that there is magnetic material on the proximal end of the bobbin, then the end close to the magnetic-controlled reed switch is judged to be the bobbin small end; Step B: The magnetically controlled reed switch sends a signal to the controller that the end of the bobbin 1 close to the magnetically controlled reed switch is the bobbin big end or the bobbin small end; Step C: The controller controls the bobbin release device to adjust the corresponding mechanical action according to the signal sent by the magnetically controlled reed switch, retracts the support for the bobbin as a whole, and blocks the small end of the falling bobbin, so that the bobbin 1 falls with its large end facing downward to achieve tube insertion.

[0026] See also Figure 1-Figure 5 , an embodiment of a device for detecting the large and small ends of a bobbin for an automatic winding machine according to the present invention, the automatic winding machine comprises a frame, a bobbin conveying device, a bobbin releasing device and a controller, a material detection sensor is installed on the frame near one end of the bobbin releasing device, for detecting whether there is a material different from that of the bobbin body on one end of the bobbin 1 closer to it, and judging whether the end of the bobbin 1 closer to it is the big end of the bobbin or the small end of the bobbin; the material detection sensor is connected to the controller, and the controller is used to receive information on the direction of the large and small ends of the bobbin sent by the material detection sensor, and control the bobbin releasing device to adjust the corresponding mechanical action, so that during the falling process of the bobbin 1, only the small end of the bobbin is blocked, so that the big end of the bobbin falls with the big end facing downward.

[0027] The first improved implementation method: the existing bobbin body is usually made of non-metallic materials such as plastic, and a metal ring is embedded on the large end of the bobbin body, so the existing bobbin can be used. It is easy to implement and saves modification costs. Since there is a metal ring on the existing bobbin body, the material detection sensor can be conveniently detected by selecting an inductive proximity switch 7, and the cost is very low compared with the optical detection device.

[0028] The second improved implementation method: a magnetic material is arranged on the large end or the small end of the bobbin body, and the material detection sensor is a magnetically controlled reed switch, which is very low in cost compared with the optical detection device. Since there is no magnetic material on the existing bobbin body, a bobbin with magnetic material needs to be specially made, and the magnetic material can be embedded on one end of the existing bobbin body.

[0029] Specifically, the bobbin release device comprises a first support body, a second support body, and a third support body arranged above the guide positioning device, the first support body is located above the second support body and the third support body, and the guide positioning device and the tray are arranged in sequence below the bobbin release device, the first support body comprises a rectangular support plate 3 and a first telescopic drive mechanism, the second support body comprises a second support rod 4-2 and a second telescopic drive mechanism, and the third support body comprises a third support rod 4-1 and a third telescopic drive mechanism. Preferably, the first telescopic drive mechanism, the second telescopic drive mechanism, and the third telescopic drive mechanism all adopt telescopic cylinders. The material detection sensor is close to one end of the rectangular support plate 3, and the other end of the rectangular support plate 3 is close to the output end of the conveyor belt 2 in the bobbin conveying device. The second support rod 4-2 and the third support rod 4-1 are arranged side by side, and the second support rod 4-2 is close to the material detection sensor. A metal ring is embedded on the big end of the bobbin body. The material detection sensor is an inductive proximity switch 7, which is installed on the frame through an adjustable mounting frame, and the position or height of the inductive proximity switch 7 can be adjusted as needed. A buffer limit plate 5 is installed on the frame in front of the inductive proximity switch 7. When the bobbin 1 is transported to the rectangular support plate 3 by the conveyor belt 2, it stops moving after being blocked by the buffer limit plate 5, which also plays a role in protecting the inductive proximity switch 7.

[0030] Furthermore, a detection sensor I11 is arranged near the side of the conveyor belt 2 in the above-mentioned tube yarn conveying device, and a detection sensor II6 is arranged near the side of the tube yarn releasing device; the detection sensor I11 and the detection sensor II6 are both connected to the controller, and the detection sensor I11 and the detection sensor II6 can both adopt inductive proximity switches or magnetically controlled reed switches.

[0031] See also Figure 1 The above-mentioned guiding and positioning device includes a fixed guiding device 8 and a movable guiding device 9 arranged below the fixed guiding device 8. The upper end of the fixed guiding device 8 is larger than the length of the tube yarn 1, and the lower end of the fixed guiding device 8 is smaller than the upper end of the movable guiding device 9. A tube yarn lower supporting plate 12 is arranged on the lower end of the fixed guiding device 8, and the lower end of the movable guiding device 9 is aligned with the tray 10 below.

[0032] Of course, the above description is not a limitation of the invention, and the invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the invention should also fall within the protection scope of the invention.

Claims

1. A method for detecting the large and small ends of bobbin tubes of an automatic winding machine, the automatic winding machine comprising a frame, a bobbin conveying device, a bobbin releasing device and a controller, characterized in that: A material detection sensor is installed on a frame near one end of the bobbin release device to detect whether the material on the end of the bobbin closer to the bobbin release device is different from that of the bobbin body. The detection method includes the following steps: Step 1: When the bobbin conveying device conveys the bobbin to the bobbin releasing device, if the material detection sensor senses that the bobbin near one end contains a material different from the bobbin body, the end close to the material detection sensor is judged to be the bobbin big end; if the material detection sensor fails to sense that the bobbin near the end contains a material different from the bobbin body, the end close to the material detection sensor is judged to be the bobbin small end; Step 2: The material detection sensor sends a signal to the controller indicating that the end of the bobbin close to the material detection sensor is the bobbin big end or the bobbin small end; Step 3: The controller controls the bobbin release device to adjust the corresponding mechanical action according to the signal sent by the material detection sensor, retracts the support for the entire bobbin, and at the same time blocks the small end of the falling bobbin, so that the bobbin falls with its large end facing downward to achieve tube insertion.

2. The method for detecting the large and small ends of the bobbin of the automatic winding machine according to claim 1, characterized in that: The bobbin release device comprises a first support body, a second support body, and a third support body arranged above the guide positioning device, the first support body is located above the second support body and the third support body, and the guide positioning device and the tray are arranged in sequence below the bobbin release device, the first support body comprises a rectangular support plate and a first telescopic drive mechanism, the second support body comprises a second support rod and a second telescopic drive mechanism, the third support body comprises a third support rod and a third telescopic drive mechanism, the material detection sensor is close to one end of the rectangular support plate, and the other end of the rectangular support plate is close to the output end of the conveyor belt in the bobbin conveying device, the second support rod and the third support rod are arranged side by side, and the second support rod is close to the material detection sensor, a metal ring is embedded on the big end of the bobbin body, the material detection sensor is an inductive proximity switch, and the detection method comprises the following specific steps: Step 1: The conveyor belt in the bobbin conveying device conveys the bobbin to the rectangular support plate and stops moving. If the inductive proximity switch senses a metal ring on the proximal end of the bobbin, the end close to the inductive proximity switch is judged to be the big end of the bobbin; if the inductive proximity switch fails to sense a metal ring on the proximal end of the bobbin, the end close to the inductive proximity switch is judged to be the small end of the bobbin; Step 2: The inductive proximity switch sends a signal to the controller indicating that the end of the bobbin close to the inductive proximity switch is the bobbin big end or the bobbin small end; Step 3: The controller controls the bobbin releasing device to make corresponding actions according to the judgment result of the inductive proximity switch on the bobbin size, controls the first telescopic driving mechanism to drive the rectangular support plate to retract, releases the bobbin on it, and retracts the second support rod or the third support rod under the bobbin size end, and blocks the bobbin size end with the third support rod or the second support rod, so that the bobbin falls with its size end facing downward; Step 4: During the falling process, the bobbin first falls into the guide positioning device, which makes the bobbin head face downward in a vertical state, then falls from the lower port of the guide positioning device, and finally is inserted downward on the tray; Step 5: The bobbin conveying device then conveys the next bobbin to the bobbin releasing device, and the insertion action is completed in a cycle.

3. The method for detecting the large and small ends of the bobbin of the automatic winding machine according to claim 2, characterized in that: A detection sensor I is arranged near one side of the conveyor belt in the bobbin conveying device, and a detection sensor II is arranged near one side of the bobbin releasing device. In the step 5, when the front end of the bobbin is about to reach the output end of the conveyor belt, the detection sensor I sends a bobbin arrival signal to the controller. If the detection sensor II detects that the bobbin on the rectangular supporting plate has not been released at this time, a bobbin signal is sent to the controller that there is a bobbin on the bobbin releasing device, and the controller controls the bobbin conveying device to stop running. When the controller receives the bobbin signal sent by the detection sensor II that there is no bobbin on the rectangular supporting plate, the bobbin conveying device is started again to convey the bobbin to the rectangular supporting plate in the supporting position in the bobbin releasing device.

4. The method for detecting the large and small ends of the bobbin of the automatic winding machine according to claim 1, characterized in that: A magnetic material is arranged on one end of the big end of the bobbin body, and the material detection sensor is a magnetically controlled reed switch. The detection method includes the following specific steps: Step A: When the conveyor belt in the bobbin conveying device conveys the bobbin to the bobbin releasing device, if the magnetic-controlled reed switch senses that there is magnetic material on the proximal end of the bobbin, then the end close to the magnetic-controlled reed switch is judged to be the big end of the bobbin; if the magnetic-controlled reed switch fails to sense that there is magnetic material on the proximal end of the bobbin, then the end close to the magnetic-controlled reed switch is judged to be the small end of the bobbin; Step B: The magnetically controlled reed switch sends a signal to the controller indicating that the end of the bobbin close to the magnetically controlled reed switch is the bobbin big end or the bobbin small end; Step C: The controller controls the bobbin release device to adjust the corresponding mechanical action according to the signal sent by the magnetically controlled reed switch, retracts the support for the bobbin as a whole, and blocks the small end of the falling bobbin, so that the bobbin falls with its large end facing downward to achieve insertion.

5. A device for detecting the large and small ends of bobbin tubes of an automatic winding machine, the automatic winding machine comprising a frame, a bobbin conveying device, a bobbin releasing device and a controller, characterized in that: A material detection sensor is installed on a frame near one end of the bobbin releasing device to detect whether the end of the bobbin closer to it has a material different from that of the bobbin body, and to determine whether the end of the bobbin closer to it is the big end of the bobbin or the small end of the bobbin; the material detection sensor is connected to the controller, and the controller is used to receive information on the direction of the big and small ends of the bobbin sent by the material detection sensor, and control the bobbin releasing device to adjust the corresponding mechanical action, so that during the falling process of the bobbin, only the small end of the bobbin is blocked, so that the big end of the bobbin falls with the downward posture.

6. The automatic winding machine bobbin big and small end detection device according to claim 5, characterized in that: A metal ring is embedded on one end of the big head of the bobbin body, and the material detection sensor is an inductive proximity switch.

7. The automatic winding machine bobbin big and small end detection device according to claim 5, characterized in that: A magnetic material is arranged on the large end or the small end of the bobbin body, and the material detection sensor is a magnetically controlled reed switch.

8. The automatic winding machine bobbin big and small end detection device according to claim 6 or 7, characterized in that: The tube yarn releasing device includes a first support body, a second support body, and a third support body which are arranged above the guiding and positioning device. The first support body is located above the second support body and the third support body. The guiding and positioning device and the tray are arranged in sequence below the tube yarn releasing device. The first support body includes a rectangular supporting plate and a first telescopic driving mechanism. The second support body includes a second supporting rod and a second telescopic driving mechanism. The third support body includes a third supporting rod and a third telescopic driving mechanism. The material detection sensor is close to one end of the rectangular supporting plate, and the other end of the rectangular supporting plate is close to the output end of the conveyor belt in the tube yarn conveying device. The second supporting rod and the third supporting rod are arranged side by side, and the second supporting rod is closer to the material detection sensor. The material detection sensor is installed on the frame through an adjustable mounting frame, and a buffer limit plate is installed on the frame in front of the material detection sensor.

9. The automatic winding machine bobbin big and small end detection device according to claim 6 or 7, characterized in that: A detection sensor I is arranged near one side of the conveyor belt in the cop conveying device, and a detection sensor II is arranged near one side of the cop releasing device. Both the detection sensor I and the detection sensor II are connected to the controller; both the detection sensor I and the detection sensor II are inductive proximity switches or magnetically controlled reed switches.

10. The automatic winding machine bobbin big and small end detection device according to claim 8, characterized in that: A detection sensor I is arranged near one side of the conveyor belt in the cop conveying device, and a detection sensor II is arranged near one side of the cop releasing device. Both the detection sensor I and the detection sensor II are connected to the controller; both the detection sensor I and the detection sensor II are inductive proximity switches or magnetically controlled reed switches.

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