Power device for winding machine and winding machine
By installing a power device and a blowing device on the small suction nozzle, the problem of ineffective action of the small suction nozzle when replacing the tube yarn is solved, and a more efficient yarn suction and jointing process is achieved, and the production efficiency is improved.
Patent Information
- Application Number
- CN202420219037.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-30
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-30
AI Technical Summary
When replacing new tube yarn, the small suction nozzle will perform invalid actions, resulting in reduced production efficiency. The procedures of the existing technology small suction nozzle cannot be changed, resulting in invalid actions when replacing new tube yarn, which wastes time.
Power devices such as cylinders, electric cylinders, electromagnets or motors with eccentric cams are used to open the cover of the small suction nozzle, create a negative pressure state to suck the yarn head, and blow the yarn through the first blowing device Enter the small suction nozzle to reduce invalid action.
The effective action of the small suction nozzle when replacing the yarn is improved, the operation path of the small suction nozzle is shortened, and the working efficiency and production efficiency are improved.
Smart Images
Figure CN222138345U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a winding machine, in particular to a power device for a winding machine and a winding machine. Background Art
[0002] The winding machine is a commonly used equipment in the textile field. Its function is to wind the yarns on the bobbins spun by the spinning machine onto the paper tube to make bobbins, and connect all the yarns of several bobbins to make a whole yarn, which is convenient for use on the loom. The winding machine includes a large suction nozzle and a small suction nozzle. The large suction nozzle is located above the small suction nozzle. The function of the large suction nozzle is to absorb the yarn head wound on the paper tube and pull it down to the joint station. The function of the small suction nozzle is to absorb the yarn head of the bobbin and transfer the yarn head to the joint station. The two thread ends are combined at the joint station, connected and knotted together to form a whole yarn.
[0003] In the prior art, a series of technical problems will be encountered in the process of converting a yarn storage type winding machine into a tray type automatic winding machine. One of the problems is that when replacing a new bobbin, the small suction nozzle will perform an invalid action. Specifically, during the operation of the winding machine, the yarn head wound on the bobbin below the winding machine will be blown up by the airflow, and when passing through the yarn hole of the winding machine, it will be sucked by the small suction nozzle that moves downward to the top of the yarn hole. This is the yarn head taking station of the small suction nozzle. Then the small suction nozzle moves the yarn to the top and connects with the thread head on the paper tube, and then performs the unwinding work until all the yarn wound on the bobbin is wound around the paper tube. During this process, the small suction nozzle stays in the waiting position. After the bobbin is unwound, the winding machine will detect that there is no yarn unwinding. At this time, after the new bobbin is replaced, the small suction nozzle directly moves upward from the waiting position to perform an automatic knotting action. But in fact, the small suction nozzle mouth does not suck the yarn at this time. This action is an invalid action that wastes time. After the small suction nozzle completes the above-mentioned ineffective action, the small suction nozzle will move to the yarn end taking position, that is, above the yarn hole, to suck the yarn end on the new bobbin. In the prior art, since the small suction nozzle program is pre-set and cannot be changed, the small suction nozzle will perform ineffective actions when replacing a new bobbin, thereby reducing production efficiency. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a power device for a winding machine and a winding machine, when a new bobbin is replaced, a small suction nozzle performs effective action, and production efficiency can be improved.
[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0006] In a first aspect, the utility model provides a power device for a winding machine, wherein the power device is a cylinder, an electric cylinder, an electromagnet or a motor with an eccentric cam; the power device is used to open the cover of a small suction nozzle in a waiting position in the winding machine.
[0007] As a preferred example, when the power device is a cylinder, the power output part of the power device is the cylinder piston rod; when the power device is an electric cylinder, the power output part of the power device is the electric cylinder output shaft; when the power device is an electromagnet, the power output part of the power device is the electromagnet core rod; when the power device is a motor with an eccentric cam, the power output part of the power device is the eccentric cam.
[0008] As a preferred example, the power device further comprises a first air blowing device. When in use, the air outlet of the first air blowing device is opposite to the small suction nozzle at the waiting position.
[0009] As a preferred example, the first air blowing device includes an air source and an air pipe, the air source is connected to an air inlet of the air pipe, and an air outlet of the air pipe is opposite to a small suction nozzle at a waiting position.
[0010] In the second aspect, the utility model provides a winding machine, including a winding machine body, a small suction nozzle with a cover body, and a power device; wherein the small suction nozzle is connected to the winding machine body, and the winding machine body provides negative pressure for the small suction nozzle; the power device is connected to the winding machine body, and is used to open the cover body of the small suction nozzle in the waiting position.
[0011] As a preferred example, the power device is used to open the cover of the small suction nozzle in the waiting position, and when the inner cavity of the small suction nozzle is under negative pressure, the yarn end is sucked into the inner cavity of the small suction nozzle.
[0012] As a preferred example, the winder further comprises a first air blowing device, the first air blowing device is connected to the winder body, and an air outlet of the first air blowing device is opposite to a small suction nozzle at the waiting position.
[0013] As a preferred example, the winding machine adopts a tray-type automatic winding machine.
[0014] As a preferred example, the winding machine also includes a tube yarn replacement device and a second blowing device, the tube yarn replacement device is used to transport the tube yarn; the second blowing device is located below the tube yarn replacement device, and the second blowing device is used to blow air upward into the hollow cavity of the tube yarn at the working station.
[0015] As a preferred example, the cover body is rotatably connected to the small suction nozzle, the cover body is adapted to the opening of the small suction nozzle, and a protrusion is provided on the cover body; the power output part of the power device is opposite to the protrusion.
[0016] As a preferred example, the power device is a cylinder, an electric cylinder, an electromagnet or a motor with an eccentric cam; when the power device is a cylinder, the power output part of the power device is the cylinder piston rod; when the power device is an electric cylinder, the power output part of the power device is the electric cylinder output shaft; when the power device is an electromagnet, the power output part of the power device is the electromagnet core rod; when the power device is a motor with an eccentric cam, the power output part of the power device is the eccentric cam.
[0017] As a preferred example, the winding machine further comprises a sensor, and the sensor is used to detect whether there is yarn above the yarn passing hole of the winding machine body.
[0018] As a preferred example, the small suction nozzle is rotatably connected to the winding machine body, the small suction nozzle rotates upward from the waiting position to the joint position, and the small suction nozzle rotates downward from the waiting position to the yarn end taking position.
[0019] As a preferred example, the winding machine also includes a boss, which is fixedly connected to the winding machine body, and the boss is located above the yarn passing hole of the winding machine body and close to the yarn head taking station; when the small suction nozzle rotates downward from the waiting position to the yarn head taking station, the cover body of the small suction nozzle touches the boss, causing the cover body to flip over and be in an open state.
[0020] Compared with the prior art, the power device and the winder for the winding machine of this embodiment can improve production efficiency by making the small suction nozzle perform effective actions when replacing a new bobbin. The winding machine of this embodiment includes a small suction nozzle with a cover, a first air blowing device and a power device; the small suction nozzle is connected to the winding machine body, and the winding machine body provides negative pressure for the small suction nozzle; the power device is connected to the winding machine body and is used to open the cover of the small suction nozzle in the waiting position; the first air blowing device is connected to the winding machine body, and the air outlet of the first air blowing device is opposite to the small suction nozzle in the waiting position. The technical solution of this embodiment can transform the ineffective action of the small suction nozzle into an effective action, improve the working efficiency of the equipment, and increase the output. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a side view of the winding machine of the utility model embodiment when working;
[0022] Figure 2 It is a three-dimensional diagram of the winding machine of the utility model embodiment when working.
[0023] The figure includes: a winding machine body 1, a small suction nozzle 2, a cover 201, a second air blowing device 3, a first air blowing device 4, a power device 5, a bobbin 6, a paper tube 7, and a yarn passing hole 8. DETAILED DESCRIPTION
[0024] The technical solution of the utility model is further described in detail below in conjunction with the embodiments.
[0025] After the yarn storage winder is transformed into a tray-type automatic winder, the working control program of the small suction nozzle in the winder is not modified, and the program in the yarn storage winder is still used. After the bobbin is unwound, the winder detects that there is no yarn unwound. At this time, the small suction nozzle moves upward to perform automatic knotting. However, in fact, the small suction nozzle does not suck the yarn at this time. This action is an invalid action that wastes time. Based on this problem, this embodiment is modified so that the invalid action becomes an effective action.
[0026] The present utility model provides a power device for a winding machine. Figure 1 and Figure 2 As shown, the power device 5 is a cylinder, an electric cylinder, an electromagnet or a motor with an eccentric cam; the power device is used to open the cover 201 of the small suction nozzle 2 in the waiting position of the winding machine.
[0027] When the yarn head of the new bobbin is blown upward and passes over the yarn hole 8 of the winding machine body 1, the power device 5 is used to open the cover 201 of the small suction nozzle 2 in the waiting position. When the inner cavity of the small suction nozzle 2 is under negative pressure, the yarn is sucked into the inner cavity of the small suction nozzle 2. The small suction nozzle 2 completes the action of taking the yarn head at the waiting position. After taking the yarn head, the small suction nozzle 2 goes up to the jointing position to complete the yarn joint. When the yarn joint is successfully identified and the unwinding work begins, the small suction nozzle 2 goes down and returns to the waiting position. By providing the power device 5, the small suction nozzle 2 does not need to go down from the waiting position to the yarn head taking position, and the yarn head is taken at the waiting position, which reduces the ineffective actions of the small suction nozzle 2 and improves work efficiency.
[0028] When the power device 5 is a cylinder, the power output part of the power device 5 is the cylinder piston rod; when the power device 5 is an electric cylinder, the power output part of the power device 5 is the electric cylinder output shaft; when the power device 5 is an electromagnet, the power output part of the power device 5 is the electromagnet core rod; when the power device 5 is a motor with an eccentric cam, the power output part of the power device 5 is the eccentric cam. The power output part of the power device 5 and the cover 201 of the small suction nozzle 2 act to open the cover 201.
[0029] Preferably, the power device further comprises a first air blowing device 4. When in use, the air outlet of the first air blowing device 4 is opposite to the small suction nozzle 2 in the waiting position. The first air blowing device 4 is used to blow the yarn that has passed through the yarn hole 8 of the winding machine body 1 to the inner cavity of the small suction nozzle 2. Under the blowing of the first air blowing device 4 and the negative pressure state of the inner cavity of the small suction nozzle 2, the yarn that has passed through the yarn hole 8 of the winding machine body 1 is more likely to enter the inner cavity of the small suction nozzle 2.
[0030] Preferably, the first blowing device 4 includes an air source and an air pipe, the air source is connected to the air inlet of the air pipe, and the air outlet of the air pipe is opposite to the small suction nozzle 2 at the waiting position. The air source can come from the winding machine or be set separately. The air flow drawn from the air source flows through the air pipe and blows to the small suction nozzle 2.
[0031] The utility model also provides a winding machine, such as Figure 1 and Figure 2 As shown, it includes a winding machine body 1, a small suction nozzle 2 with a cover body 201, and a power device 5; the small suction nozzle 2 is connected to the winding machine body 1, and the winding machine body 1 provides negative pressure for the small suction nozzle 2; the power device 5 is connected to the winding machine body 1, and is used to open the cover body 201 of the small suction nozzle 2 in the waiting position.
[0032] In the winding machine of the above embodiment, when the yarn on a bobbin is unwound, it will be moved out of the working position. A new bobbin will be transported to the working position and wait for unwinding. When the yarn head in the hollow cavity of the bobbin 6 is blown upward, it passes over the yarn hole 8 of the winding machine body 1. The power device 5 is used to open the cover 201 of the small suction nozzle 2 in the waiting position. The inner cavity of the small suction nozzle 2 is connected to the negative pressure device of the winding machine body 1, so that the inner cavity of the small suction nozzle 2 is in a negative pressure state. When the inner cavity of the small suction nozzle 2 is in a negative pressure state, the yarn head is sucked into the inner cavity of the small suction nozzle 2. The small suction nozzle 2 completes the action of taking the yarn head. In this process, the small suction nozzle 2 does not need to go down from the waiting position to the yarn head taking position, and the yarn head is taken at the waiting position. After taking the yarn head, the small suction nozzle 2 moves upward to the joint position, completes the yarn joint with the yarn drawn from the winding machine paper tube 7, and then performs the unwinding work.
[0033] The winding machine of this embodiment is provided with a power device 5. When the yarn head of the new bobbin is blown upward and passes over the yarn hole 8 of the winding machine body 1, the power device 5 is used to open the cover 201 of the small suction nozzle 2 in the waiting position. When the inner cavity of the small suction nozzle 2 is in a negative pressure state, the yarn is sucked into the inner cavity of the small suction nozzle 2. The small suction nozzle 2 completes the action of taking the yarn head at the waiting position. After taking the yarn head, the small suction nozzle 2 goes up to the jointing position to complete the yarn joint. When the yarn joint is successfully identified and the unwinding work begins, the small suction nozzle 2 goes down and returns to the waiting position. Compared with the prior art, the winding machine of this embodiment greatly shortens the travel path of the small suction nozzle and improves work efficiency.
[0034] Preferably, the winder further comprises a first air blowing device 4, which is connected to the winder body 1, and the air outlet of the first air blowing device 4 is opposite to the small suction nozzle 2 in the waiting position. The first air blowing device 4 is used to blow the yarn that passes through the yarn hole 8 of the winder body 1 to the inner cavity of the small suction nozzle 2. Under the blowing of the first air blowing device 4 and the negative pressure state of the inner cavity of the small suction nozzle 2, the yarn that passes through the yarn hole 8 of the winder body 1 is more likely to enter the inner cavity of the small suction nozzle 2.
[0035] Preferably, the winding machine adopts a tray-type automatic winding machine. The winding machine also includes a bobbin replacement device and a second blowing device 3, the bobbin replacement device is used to transport the bobbin 6, the second blowing device 3 is located below the bobbin replacement device, and the second blowing device 3 is used to blow air upwards into the hollow cavity of the bobbin 6 at the working position. The bobbin replacement device transports the bobbin 6 to the working position, and then uses the second blowing device 3 to blow air upwards into the hollow cavity of the bobbin 6, so that the yarn head located in the hollow cavity of the bobbin 6 moves upwards.
[0036] Preferably, the cover 201 is rotatably connected to the small suction nozzle 2, the cover 201 is adapted to the opening of the small suction nozzle 2, and a protrusion is provided on the cover 201; the power output part of the power device 5 is opposite to the protrusion. When it is not necessary to suck the yarn end, the cover 201 covers the small suction nozzle 2 to save airflow. When it is necessary to suck the yarn end, the cover 201 is opened, and the small suction nozzle 2 sucks the external yarn end under the negative pressure state of the inner cavity. The power output part of the power device 5 is opposite to the protrusion, and the power output part applies a force to the protrusion to open or close the cover 201. Preferably, the power device 5 is a cylinder, an electric cylinder, an electromagnet or a motor with an eccentric cam; when the power device 5 is a cylinder, the power output part of the power device 5 is a cylinder piston rod; when the power device 5 is an electric cylinder, the power output part of the power device 5 is an electric cylinder output shaft; when the power device 5 is an electromagnet, the power output part of the power device 5 is an electromagnet core rod; when the power device 5 is a motor with an eccentric cam, the power output part of the power device 5 is an eccentric cam. When the small suction nozzle 2 is in the waiting position and the cover 201 needs to be opened, the power device 5 is started. The power device 5 applies a force to the protrusion on the cover 201 so that the cover 201 is opened. Take the power device 5 as an example for explanation. The cylinder is installed on the winding machine body 1 through a bracket and is close to the waiting position of the small suction nozzle. The end of the cylinder piston rod is directly opposite to the protrusion of the small suction nozzle cover. A blowing air pipe, i.e., the first blowing device, is arranged behind the yarn hole, and the pipe mouth faces the small suction nozzle of the waiting position. The blowing air pipe is installed on the winding machine body through a bracket. A solenoid valve is used to control the cylinder and the blowing air pipe at the same time. After the new bobbin yarn is added to the working position, the piston of the cylinder quickly pushes up the raised part of the small suction nozzle cover to open the small suction nozzle. At the same time, the compressed air is blown out through the blowing air pipe, and the yarn of the bobbin yarn blown up by the air flow from the bottom of the bobbin yarn is blown into the small suction nozzle. The small suction nozzle sucks in the yarn, and then moves upward for jointing. Of course, two solenoid valves can also be arranged to control the cylinder and the blowing air pipe respectively. The power device 5 can also adopt other common structures, as long as it can open the cover body 201.
[0037] Preferably, the winding machine further comprises a sensor, which is used to detect whether there is yarn above the yarn hole of the winding machine body 1. If there is no yarn, then the bobbin must be replaced. If the sensor detects that there is yarn above the yarn hole, the small suction nozzle goes down to the yarn head taking station, sucks the yarn head, and takes the yarn up to the joint station for jointing. If the sensor detects that there is no yarn above the yarn hole, it may be a misjudgment at this time, and the new bobbin cannot be directly replaced, but the method of this preferred example is adopted. The small suction nozzle is moved downward from the waiting station to the yarn head taking station, and the yarn head is sucked. If the yarn head is not sucked, step 10 is entered to replace the bobbin. At the same time, the small suction nozzle is moved upward from the yarn head taking station to the waiting station. This can more accurately determine whether there is yarn above the yarn hole. This preferred example uses the sensor and the small suction nozzle to judge twice whether there is really no yarn above the yarn hole. This avoids the possible misjudgment of the sensor and also avoids the occurrence of the situation where the bobbin that has not completed all unwinding exits the working position.
[0038] Preferably, the small suction nozzle 2 is rotatably connected to the winding machine body 1, and the small suction nozzle 2 is rotated upward from the waiting position to the joint position, and the small suction nozzle 2 is rotated downward from the waiting position to the yarn head taking position. The winding machine body 1 is provided with a joint position, a waiting position and a yarn head taking position arranged from top to bottom. The upward and downward movement of the small suction nozzle 2 are both achieved by rotation. The small suction nozzle 2 is rotatably connected to the winding machine body 1, which is convenient for accurate control of the moving position of the small suction nozzle 2, and the structure is also more compact.
[0039] Preferably, the winder further comprises a boss, which is fixedly connected to the winder body 1, and the boss is located above the yarn hole of the winder body 1 and close to the yarn head taking station; when the small suction nozzle 2 rotates downward from the waiting station to the yarn head taking station, the cover 201 of the small suction nozzle 2 touches the boss, so that the cover 201 flips over and is in an open state. The cover 201 of the small suction nozzle 2 and the opening of the small suction nozzle 2 are in a normally closed state. When the small suction nozzle 2 descends from the waiting station to the yarn head taking station and sucks the yarn head, the cover 201 of the small suction nozzle 2 touches the boss, so that the cover 201 flips over and is in an open state. In this way, the small suction nozzle 2 uses the negative pressure in its inner cavity to suck the external yarn head. By setting the boss, the cover 201 of the small suction nozzle 2 is automatically opened.
[0040] The bobbin replacement device is used to transport the bobbin to the working position. At the working position, after the bobbin is unwound, it becomes an empty bobbin. The bobbin replacement device transports the empty bobbin away from the working position, and at the same time, the bobbin replacement device transports the next bobbin to the working position. The bobbin replacement device can have various structures. The following three structures are selected in this embodiment. The first structure: the bobbin replacement device is a round belt conveying structure, including a first driving wheel, a first driven wheel, a round belt, and a first power source. The round belt is wound around the first driving wheel and the first driven wheel, and the first power source drives the first driving wheel to rotate. Since the width of the round belt is narrow, the bobbin is inserted on the tray, and the hollow cavity of the bobbin and the hollow cavity of the tray are partially located outside the round belt, so the second blowing device 3 is directly close to the round belt and set below the working position. In this way, the round belt transports the bobbin inserted on the tray to the working position and stops, and the second blowing device 3 blows upward to perform the unwinding work. After the unwinding is completed, the round belt runs to transport the empty bobbin away from the working position and transports a new bobbin to the working position. The second structure: the bobbin replacement device is a flat belt conveying structure, including a second driving wheel, a second driven wheel, a flat belt, a guide plate with a raised portion, and a second power source. The flat belt is wound around the second driving wheel and the second driven wheel. The raised portion of the guide plate is opposite to the working position. The second power source drives the second driving wheel to rotate. The flat belt is relatively wide. The bobbin is inserted on the tray. The hollow cavity at the bottom of the tray is completely covered by the flat belt. The second blowing device 3 cannot directly blow air into the hollow cavity of the bobbin. The flat belt conveys the bobbin inserted on the tray to the working position. When approaching the working position, the tray slides along the raised portion of the guide plate to leave the flat belt for a distance, so that the hollow cavity of the bobbin leaves the flat belt and stops at the working position, facing the second blowing device 3 arranged below. When replacing a new bobbin, the flat belt runs to take away the empty bobbin at the working position and convey the new bobbin to the working position. The third bobbin replacement device includes a storage platform with bobbin, a third power source and a hook plate. The third power source drives the hook plate to swing back and forth. When the hook plate swings in one direction, the hook plate hooks a bobbin inserted on the tray from the storage platform to the working position. A second blowing device 3 is arranged below the working position. When the hook plate swings in another direction, the hook plate pushes the tray with the empty tube out of the working position. The third power source is preferably a cylinder.
[0041] The second blowing device 3 and the first blowing device 4 in the above embodiment can adopt the same structure, both including a blowing air pipe. The blowing air pipe can be connected to the air source on the winding machine body 1, or can be connected to an external independently set air source. The air source provides flowing gas for the blowing air pipe.
[0042] The method for unwinding yarn of the winding machine of the above embodiment comprises:
[0043] Step 10, transporting the bobbin to the working position;
[0044] Step 20, blowing the yarn head in the hollow cavity of the bobbin upward to pass through the yarn passing hole of the winding machine;
[0045] Step 30, opening the cover of the small suction nozzle at the waiting position;
[0046] Step 40, move the small suction nozzle containing the yarn upward to the jointing station, complete the yarn joint with the yarn drawn out from the winding machine paper tube, and then perform the unwinding work.
[0047] When the yarn on a bobbin is unwound, it will be moved out of the working position. A new bobbin will be transported to the working position and wait for unwinding. The second blowing device is used to blow the yarn head in the hollow cavity of the bobbin upward and pass through the yarn hole of the winder. The power device is used to open the cover of the small suction nozzle in the waiting position. The inner cavity of the small suction nozzle is connected to the negative pressure device of the winder body, so that the inner cavity of the small suction nozzle is in a negative pressure state. When the small suction nozzle is in a negative pressure state, the yarn is sucked into the inner cavity of the small suction nozzle. The small suction nozzle completes the action of taking the yarn head. In this process, the small suction nozzle does not need to go down from the waiting position to the yarn head taking position, and the yarn head is taken at the waiting position. After taking the yarn head, the small suction nozzle moves upward to the jointing position, completes the yarn joint with the yarn drawn from the paper tube of the winder, and then performs the unwinding work.
[0048] In this embodiment, the small suction nozzle completes the action of taking the yarn end at the waiting position. After taking the yarn end, the small suction nozzle ascends to the jointing position to complete the yarn joint. When the yarn joint is successfully identified and the unwinding work begins, the small suction nozzle descends and returns to the waiting position. In the prior art, when replacing a new bobbin, the small suction nozzle is at the waiting position. If the yarn end is not sucked, it ascends to the jointing position, and the joint is not successful. Then, it descends again through the waiting position, stays at the yarn end taking position, and sucks the yarn end. After sucking the yarn end, it ascends again, passes the waiting position, and stays at the jointing position. After completing the jointing action, the small suction nozzle descends to the waiting position. Compared with the prior art, the method of this embodiment greatly shortens the travel path of the small suction nozzle and improves work efficiency.
[0049] As a preferred example, the step 30 further includes: blowing the yarn that passes through the yarn hole of the winder toward the inner cavity of the small suction nozzle. When the negative pressure in the small suction nozzle is small, it is difficult to suck the yarn that passes through the yarn hole of the winder. At this time, the first blowing device is used to blow the yarn that passes through the yarn hole of the winder toward the inner cavity of the small suction nozzle, so that the yarn that passes through the yarn hole of the winder can be quickly blown into the small suction nozzle. Under the blowing of the first blowing device and the negative pressure state of the inner cavity of the small suction nozzle, the yarn that passes through the yarn hole of the winder can easily enter the inner cavity of the small suction nozzle.
[0050] As a preferred example, the small suction nozzle is connected to the negative pressure device of the winding machine, and negative pressure is generated in the inner cavity of the small suction nozzle. The inner cavity of the small suction nozzle maintains a negative pressure state. The small suction nozzle also includes a cover body, and the cover body and the opening of the small suction nozzle are adapted. When the small suction nozzle does not suck the yarn, the cover body is closed. When the small suction nozzle sucks the yarn, the cover body is opened. The negative pressure device of the winding machine is connected to the small suction nozzle, so that negative pressure is generated in the inner cavity of the small suction nozzle. The negative pressure state of the small suction nozzle is conducive to its sucking of yarn.
[0051] As a preferred example, the method further includes: step 50, returning the small suction nozzle to the waiting position. In step 40, the small suction nozzle containing the yarn is moved upward to the jointing position, the yarn joint with the yarn drawn out from the paper tube of the winding machine is completed, and then the unwinding work is performed. When the yarn joint is successfully identified and the unwinding work is performed, the small suction nozzle returns to the waiting position. The small suction nozzle sucks the yarn head and the work of delivering the yarn head is completed. In this preferred example, after replacing the new tube yarn, the small suction nozzle completes its work task at the waiting position and the jointing position, without having to go down to the yarn head taking position. This greatly shortens the moving path of the small suction nozzle and improves work efficiency.
[0052] Preferably, step 30 further comprises: after the yarn is blown into the inner cavity of the small suction nozzle, closing the cover of the small suction nozzle. After the yarn is blown into the inner cavity of the small suction nozzle, the small suction nozzle completes the work of taking the yarn head. At this time, closing the cover of the small suction nozzle can save air source.
[0053] In the prior art, the small suction nozzle has ineffective actions, which wastes working time and reduces the working efficiency of the equipment. The scheme of this embodiment eliminates the ineffective actions of the small suction nozzle and directly performs effective actions. That is, when changing the bobbin yarn, the small suction nozzle directly sucks the yarn end at the waiting position, and then moves upward to make a joint. After the joint is successful, it returns to the waiting position. The scheme of this embodiment does not require modification of the operating procedures originally set for the equipment. After the small suction nozzle successfully moves upward to make a joint, the equipment recognizes this action, and the small suction nozzle returns to the waiting position without having to move downward to the yarn end retrieval position. This technical solution improves working efficiency by effectively utilizing the ineffective actions of the small suction nozzle and setting the power device and the first blowing device to interfere with the state of the small suction nozzle.
[0054] The technical solution of this embodiment is to set a power device at the waiting position of the small suction nozzle. A first blowing device is set opposite the small suction nozzle and behind the yarn hole. When all the yarns on the bobbin are unwound, a new bobbin enters the working position. At this time, the original program of the winding machine detects that there is no unwound yarn, and will control the small suction nozzle to move up to make a joint. Before the small suction nozzle moves, the power device set in the technical solution of this embodiment will quickly push open the cover of the small suction nozzle, and at the same time, the first blowing device will blow out an airflow to blow the yarn head blown up by the new bobbin into the small suction nozzle. After the small suction nozzle sucks the yarn, it moves up to make a joint, and after the joint, the unwinding work of the winding machine can continue. At this time, the original program of the winding machine detects that the joint is successful, and after the unwinding work continues, it will control the small suction nozzle to return to the waiting position.
[0055] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.
Claims
1. A power device for a winding machine, characterized in that: The power device (5) is a cylinder, an electric cylinder, an electromagnet or a motor with an eccentric cam; the power device is used to open the cover (201) of the small suction nozzle (2) in the waiting position of the winding machine.
2. The power device according to claim 1, characterized in that: When the power device (5) is a cylinder, the power output part of the power device (5) is the cylinder piston rod; when the power device (5) is an electric cylinder, the power output part of the power device (5) is the electric cylinder output shaft; when the power device (5) is an electromagnet, the power output part of the power device (5) is the electromagnet core rod; when the power device (5) is a motor with an eccentric cam, the power output part of the power device (5) is the eccentric cam.
3. The power device according to claim 1, characterized in that: It also comprises a first blowing device (4). When in use, the air outlet of the first blowing device (4) is opposite to the small suction nozzle (2) at the waiting position.
4. The power device according to claim 3, characterized in that: The first air blowing device (4) comprises an air source and an air pipe, wherein the air source is connected to an air inlet of the air pipe, and an air outlet of the air pipe is opposite to a small suction nozzle (2) at a waiting position.
5. A winding machine, characterized in that: It comprises a winding machine body (1), a small suction nozzle (2) with a cover (201), and a power device (5); wherein: The small suction nozzle (2) is connected to the winding machine body (1), and the winding machine body (1) provides negative pressure for the small suction nozzle (2); the power device (5) is connected to the winding machine body (1) and is used to open the cover (201) of the small suction nozzle (2) in the waiting position.
6. The winding machine according to claim 5, characterized in that: The power device (5) is used to open the cover (201) of the small suction nozzle (2) at the waiting position, and when the inner cavity of the small suction nozzle (2) is in a negative pressure state, the yarn end is sucked into the inner cavity of the small suction nozzle (2).
7. The winding machine according to claim 5, characterized in that: It also comprises a first blowing device (4), wherein the first blowing device (4) is connected to the winding machine body (1), and an air outlet of the first blowing device (4) is opposite to a small suction nozzle (2) at a waiting position.
8. The winding machine according to claim 5, characterized in that: The winding machine adopts a tray-type automatic winding machine.
9. The winding machine according to claim 5, characterized in that: The winding machine further comprises a tube yarn replacement device and a second blowing device (3), wherein the tube yarn replacement device is used for conveying the tube yarn (6), and the second blowing device (3) is located below the tube yarn replacement device, and the second blowing device (3) is used for blowing air upwards into the hollow cavity of the tube yarn (6) at the working station.
10. The winding machine according to claim 5, characterized in that: The cover body (201) is rotatably connected to the small suction nozzle (2), the cover body (201) is adapted to the opening of the small suction nozzle (2), and a protrusion is provided on the cover body (201); the power output part of the power device (5) is opposite to the protrusion.
11. The winding machine according to claim 10, characterized in that: The power device (5) is a cylinder, an electric cylinder, an electromagnet or a motor with an eccentric cam; when the power device (5) is a cylinder, the power output part of the power device (5) is a cylinder piston rod; when the power device (5) is an electric cylinder, the power output part of the power device (5) is an electric cylinder output shaft; when the power device (5) is an electromagnet, the power output part of the power device (5) is an electromagnet core rod; when the power device (5) is a motor with an eccentric cam, the power output part of the power device (5) is an eccentric cam.
12. The winding machine according to claim 5, characterized in that: It also comprises a sensor, which is used to detect whether there is yarn above the yarn hole of the winding machine body (1).
13. The winding machine according to claim 5, characterized in that: The small suction nozzle (2) is rotatably connected to the winding machine body (1); the small suction nozzle (2) rotates upward from the waiting position to the jointing position, and the small suction nozzle (2) rotates downward from the waiting position to the yarn end taking position.
14. The winding machine according to claim 13, characterized in that: The machine also comprises a boss, which is fixedly connected to the winding machine body (1), and is located above the yarn hole of the winding machine body (1) and close to the yarn head taking position; when the small suction nozzle (2) rotates downward from the waiting position to the yarn head taking position, the cover body (201) of the small suction nozzle (2) touches the boss, so that the cover body (201) is turned over and is in an open state.