Empty cylinder loading method for bobbin winder

Abstract

The invention discloses an empty cylinder mounting method for a bobbin winder, which is characterized in that when a large chuck of a cradle is in an open state and the length of an empty cylinder is greater than the distance between a first positioning convex body and a second positioning convex body, the mounting of the empty cylinder is realized on the premise of not transforming the cradle. The empty cylinder loading method for the winding machine comprises the following steps: step 10, moving an empty cylinder of which the axis inclination angle is a preset angle to a cradle of the winding machine; and step 20, when the empty cylinder reaches a preset position, rotating the empty cylinder, and installing the empty cylinder on a cradle of the winding machine.

Description

Technical Field

[0001] The invention relates to an empty bobbin installation method, in particular to an empty bobbin installation method for a bobbin winding machine. Background Art

[0002] The winding machine is a commonly used device in the field of spinning. It can wind multiple small tube yarns on a paper tube to form a large knotless tube yarn. For winding machines without automatic yarn dropping function, in order to reduce manual operation procedures and reduce the labor intensity of workers, auxiliary equipment is required. The auxiliary equipment is used to complete the action of dropping full tubes and loading empty tubes. On the existing winding machine, the action of loading empty tubes is realized by auxiliary equipment, and there is no need to make major modifications to the original winding machine. The cradle of the winding machine includes a small chuck and a large chuck, the small chuck is fixedly connected to the machine body, and the large chuck is rotatably connected to the machine body. A first positioning convex body is provided on the end of the small chuck facing the large chuck, and a second positioning convex body is provided on the end of the large chuck facing the small chuck. When loading an empty cylinder, first adjust the axis of the empty cylinder to be parallel to the axis of the first positioning protrusion and the second positioning protrusion, then place the empty cylinder between the first positioning protrusion and the second positioning protrusion, and then rotate the large chuck so that the first positioning protrusion is located in the inner cavity of the small end of the empty cylinder, and the second positioning protrusion is located in the inner cavity of the large end of the empty cylinder, and the empty cylinder is clamped between the small chuck and the large chuck. The empty cylinder is driven to rotate by the small chuck and the large chuck, and the empty cylinder contacts the grooved cylinder located below it to achieve winding. This method is applicable to the case where the length of the empty cylinder is less than or equal to the distance between the first positioning protrusion and the second positioning protrusion when the large chuck is in the open state. If the length of the empty cylinder is greater than the distance between the first positioning protrusion and the second positioning protrusion when the large chuck is in the open state, the loading operation of the empty cylinder cannot be achieved by the existing method. This is a technical problem faced by those skilled in the art. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a method for loading empty tubes for a winding machine, when the large chuck of the cradle is in an open state and the length of the empty tube is greater than the distance between the first positioning protrusion and the second positioning protrusion, the installation of the empty tube is achieved without modifying the cradle.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: A method for loading empty bobbins for a winding machine, comprising: Step 10, moving the empty tube with the axis tilted at a preset angle toward the cradle of the winding machine; Step 20: When the empty tube reaches the preset position, the empty tube is rotated and mounted on the cradle of the winding machine.

[0005] As a preferred example, before step 10, the method further includes: Step 01, grab an empty tube from the empty tube rack and move the empty tube out of the empty tube rack; Step 02: Rotate the empty cylinder so that the inclination angle of the axis of the empty cylinder is a preset angle.

[0006] As a preferred example, in step 02, after the empty bobbin is moved out of the empty bobbin rack and moves to the cradle of the winding machine for the first stroke, the empty bobbin is rotated.

[0007] As a preferred example, in step 02, the empty cylinder is rotated during the movement; or, In step 02, after the empty cylinder is rotated at one position, step 10 is entered.

[0008] As a preferred example, before step 10, the method further includes: The empty cylinder is placed in the empty cylinder rack, and the inclination angle of the axis of the empty cylinder is a preset angle; Grab the empty cartridge from the empty cartridge holder.

[0009] As a preferred example, before step 10, the method further includes: Adjust the gripping device so that the gripping part axis of the gripping device is tilted at a preset angle; The empty tube is grabbed from the empty tube rack by using the grabbing device, the axis inclination angle of the grabbed empty tube is the preset angle, and the empty tube is moved out of the empty tube rack.

[0010] As a preferred example, in step 10, the empty tube is moved downward from above the cradle of the winding machine.

[0011] As a preferred example, in step 10, the small end of the empty tube faces downward, and the large end of the empty tube faces upward.

[0012] As a preferred example, in step 20, the preset position is that the upper edge of the inner cavity of the small head end of the empty cylinder is against the first positioning protrusion of the small chuck of the cradle.

[0013] As a preferred example, step 20 specifically includes: rotating the big end of the empty tube downward so that the first positioning protrusion of the small chuck of the cradle is completely or partially located in the inner cavity of the small end of the empty tube; then moving the big chuck of the cradle toward the small chuck to clamp the empty tube, so that the second positioning protrusion of the big chuck of the cradle is completely or partially located in the inner cavity of the big end of the empty tube, so that the empty tube is installed between the small chuck and the big chuck of the cradle.

[0014] As a preferred example, in step 20, the large end of the empty tube is rotated downward so that the axis of the empty tube coincides with the axes of the large chuck and the small chuck of the cradle.

[0015] As a preferred example, a grabbing device is used to grab the empty tube from the empty tube rack; the method further comprises: step 30, the grabbing device releases the empty tube.

[0016] As a preferred example, the method further comprises: step 30, the gripping device releases the empty cylinder.

[0017] Compared with the prior art, the present invention provides a method for loading an empty bobbin for a winding machine. When the large chuck of the cradle is in an open state and the length of the empty bobbin is greater than the distance between the first positioning protrusion and the second positioning protrusion, the empty bobbin can be installed without modifying the cradle. The loading method adopted by the present invention includes: moving an empty bobbin with an axis tilted at a preset angle toward the cradle of the winding machine; when the empty bobbin reaches the preset position, rotating the empty bobbin and installing the empty bobbin on the cradle of the winding machine. By changing the tilt angle of the axis of the empty bobbin, the present invention successfully realizes the loading of the empty bobbin on the cradle of the winding machine. This process does not require the modification of the existing cradle, and does not require the readjustment of the position of the small chuck or the large chuck of the cradle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of a grabbing device grabbing an empty tube from an empty tube rack in an embodiment of the present invention; Figure 2 is a schematic diagram of a grabbing device removing an empty tube from an empty tube rack in an embodiment of the present invention; Figure 3 is a schematic diagram of a gripping device rotating an empty cylinder in an embodiment of the present invention; Figure 4 is a schematic diagram of an empty cylinder arriving at a preset position in an embodiment of the present invention; Figure 5 Schematic diagram of an empty cylinder mounted on a cradle in an embodiment of the present invention; Figure 6 It is a schematic diagram of an embodiment of the present invention in which the small end of the empty cylinder is mounted on the small chuck and the large end is rotated downward.

[0019] The figure includes: an empty cylinder 1, a small end 101, a large end 102, a cradle 2, a small chuck 201, a large chuck 202, a first positioning protrusion 203, a second positioning protrusion 204, a gripping device 3, and an empty cylinder frame 4. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings.

[0021] An empty tube 1 is mounted on a cradle 2 of a winding machine. The empty tube 1 is in a truncated cone shape. Compared with the other end, one end of the empty tube 1 has a smaller diameter, which is called a small end 101, and the other end of the empty tube 1 is called a large end 102.

[0022] The cradle 2 comprises a small chuck 201 and a large chuck 202, wherein the small chuck 201 is fixedly connected to the machine body, and the large chuck 202 is rotatably connected to the machine body. A first positioning convex body 203 is provided at one end of the small chuck 201 facing the large chuck 202, and a second positioning convex body 204 is provided at one end of the large chuck 202 facing the small chuck 201. The empty cylinder 1 is placed between the large chuck 202 and the small chuck 201, and the large chuck 202 is moved to load the empty cylinder 1. After the empty cylinder 1 is loaded, the empty cylinder 1 is clamped between the small chuck 201 and the large chuck 202, the first positioning convex body 203 is located in the inner cavity of the small end 101 of the empty cylinder, and the second positioning convex body 204 is located in the inner cavity of the large end 102 of the empty cylinder.

[0023] When the length of the empty bobbin 1 is greater than the distance between the first positioning protrusion 203 and the second positioning protrusion 204, the method for loading the bobbin of the present invention can be used to smoothly load the empty bobbin 1 without modifying the small chuck 201 and the large chuck 202 of the winding machine. An empty bobbin loading method for a winding machine according to an embodiment of the present invention comprises: Step 10: Move the empty tube 1 with the axis tilted at a preset angle to the cradle 2 of the winding machine. The preset angle is preset according to the length of the empty tube 1 to be loaded and the distance between the large chuck 202 and the small chuck 201 on the cradle. The preset angle can be 5 to 30 degrees. Of course, the preset angle can also be other angles.

[0024] Step 20: Figure 5 As shown, when the empty tube 1 reaches the preset position, the empty tube 1 is rotated and mounted on the cradle 2 of the winding machine.

[0025] In the above embodiment, before installing the empty tube 1, the large chuck 202 of the cradle 2 is moved so that the large chuck 202 is in an open state, that is, the distance between the large chuck 202 and the small chuck 201 is the largest. The empty tube 1 with the axis tilted at a preset angle is moved toward the cradle 2 of the winding machine. The empty tube 1 is in an inclined state. The tilt angle of the empty tube 1 is a preset angle. The empty tube 1 maintains the preset angle, so that the empty tube 1 can be installed on the cradle 2. When the empty tube 1 is moved to the preset position, the empty tube 1 is rotated and the empty tube 1 is installed on the cradle 2 of the winding machine. When the empty tube 1 reaches the preset position, the small end 101 of the empty tube 1 is against the small chuck 201 of the cradle 2. The empty tube 1 is rotated so that the large end 102 of the empty tube 1 is assembled on the large chuck 202 of the cradle 2. In this embodiment, by changing the inclination angle of the empty cylinder 1, the small end 101 of the empty cylinder 1 is firstly sleeved on the first positioning protrusion 203 of the small clamp 201, and then the large end 102 of the empty cylinder 1 is rotated to realize the installation of the empty cylinder 1 on the cradle 2. In this process, the empty cylinder 1 can be installed without modifying the existing cradle 2 structure. Figure 6As shown, the small end 101 of the empty cylinder 1 is firstly put on the first positioning protrusion 203 of the small clamp 201, which is equivalent to an additional assembly distance of the length of the first positioning protrusion 203 for the empty cylinder 1, so that the large end 102 of the empty cylinder 1 can be smoothly rotated downward and assembled on the large clamp 202. When the large end 102 is rotated downward to face the second positioning protrusion 204, the large clamp 202 is moved, and the second positioning protrusion 204 on the large clamp 202 is embedded in the inner cavity of the large end 102, so as to realize the positioning of the empty cylinder 1.

[0026] In the above embodiments, there are multiple methods for obtaining an empty cylinder 1 with an axis inclination angle of a preset angle. The present invention preferably uses the following three methods.

[0027] First method: Before step 10, the method further includes: Step 01: Figure 1 and Figure 2 As shown, grab the empty tube 1 from the empty tube rack 4 and move the empty tube 1 out of the empty tube rack 4; Step 02: Figure 3 As shown, the empty cylinder 1 is rotated so that the inclination angle of the axis of the empty cylinder is a preset angle.

[0028] Before being grabbed, the empty tube 1 is located in the empty tube rack 4. The empty tube 1 is grabbed from the empty tube rack 4 by the grabbing device 3, and the empty tube 1 is moved out of the empty tube rack 4. After being moved out of the empty tube rack 4, the empty tube 1 is rotated so that the inclination angle of the axis of the empty tube is a preset angle.

[0029] Preferably, in step 02, after the empty bobbin 1 is removed from the empty bobbin rack 4, the empty bobbin 1 is rotated so that the inclination angle of the axis of the empty bobbin is a preset angle; then the rotated empty bobbin 1 is moved toward the cradle 2 of the winding machine. In this method, after the empty bobbin 1 is removed from the empty bobbin rack 4, the inclination angle of the empty bobbin 1 is changed so that the inclination angle of the axis of the empty bobbin is a preset angle; then the empty bobbin 1 with the adjusted angle is moved toward the cradle 2.

[0030] Preferably, in step 02, after the empty tube 1 moves out of the empty tube rack 4 and moves to the cradle 2 of the winding machine for the first stroke, the empty tube 1 is rotated. In this method, the empty tube 1 is first kept in a state of being grasped and moved to the cradle 2. When approaching the cradle 2, the empty tube 1 is rotated again so that the inclination angle of the axis of the empty tube is a preset angle.

[0031] Preferably, in step 02, the empty cylinder 1 is rotated during the movement. In other words, while the empty cylinder 1 is moved, the empty cylinder 1 is rotated so that the inclination angle of the axis of the empty cylinder is a preset angle. Preferably, in step 02, after the empty cylinder 1 is rotated at a position, step 10 is entered. In other words, the empty cylinder 1 is rotated at a certain spatial position so that the inclination angle of the axis of the empty cylinder is a preset angle. After adjusting the inclination angle of the empty cylinder 1, the empty cylinder 1 is continued to be moved.

[0032] Second method: Before step 10, the method further includes: The empty cylinder 1 is located in the empty cylinder rack 4, and the inclination angle of the axis of the empty cylinder is a preset angle; The empty cartridge 1 is picked up from the empty cartridge holder 4 .

[0033] In this method, when the empty cylinder 1 is in the empty cylinder rack 4, the inclination angle of the axis of the empty cylinder is a preset angle. In this way, it is not necessary to rotate and change the inclination angle of the empty cylinder 1 after grabbing the empty cylinder 1 from the empty cylinder rack 4. Compared with the first method, the second method is simpler and the inclination angle of the axis of the empty cylinder is easier to adjust.

[0034] Preferably, in the first method and the second method, the empty tube 1 is grabbed from the empty tube rack 4 by using the grabbing device 3 ; the method further comprises: step 30 , the grabbing device 3 releases the empty tube 1 .

[0035] After the empty tube 1 is mounted on the cradle 2, the large clamp 202 and the small clamp 201 are used to clamp the empty tube 1. At this time, the empty tube 1 is loaded, and the gripping device 3 releases the empty tube 1 and returns to the initial position.

[0036] Third method: Before step 10, the method further includes: Adjust the gripping device 3 so that the inclination angle of the gripping part axis of the gripping device 3 is a preset angle; The empty tube 1 is grabbed from the empty tube rack 4 by the grabbing device 3 , the axis inclination angle of the grabbed empty tube 1 is the preset angle, and the empty tube 1 is moved out of the empty tube rack 4 .

[0037] In this method, the empty tube 1 is located in the empty tube rack 4, and there is no requirement for the inclination angle of the axis of the empty tube. In this method, before the grabbing device 3 grabs the empty tube 1 from the empty tube rack 4, the inclination angle of the axis of the grabbing part of the grabbing device 4 is a preset angle. After the empty tube 4 is grabbed from the empty tube rack 3 by the grabbing part of the grabbing device 4, the axis of the empty tube 1 and the axis of the grabbing part coincide or are parallel. In this way, the inclination angle of the axis of the empty tube 1 is also a preset angle. In this method, after grabbing the empty tube 1, there is no need to rotate and adjust the inclination angle of the axis of the empty tube 1.

[0038] Preferably, in the third method, the method further comprises: step 30 , the gripping device 4 releases the empty tube 1 .

[0039] After the empty tube 1 is mounted on the cradle 2, the large clamp 202 and the small clamp 201 are used to clamp the empty tube 1. At this time, the empty tube 1 is loaded, and the gripping device 4 releases the empty tube 1 and returns to the initial position.

[0040] To avoid position interference, preferably, in step 10, the empty tube 1 is moved downward from above the cradle 2 of the winding machine. A grooved cylinder is provided below the cradle 2. The empty tube 1 is moved from top to bottom so that the empty tube 1 can be mounted on the cradle 2.

[0041] Preferably, in step 10, the small end of the empty cylinder 1 faces downward, and the large end of the empty cylinder 1 faces upward. The small chuck 201 of the cradle 2 is fixedly connected to the machine body, and the large chuck 202 is rotatably connected to the machine body. The small end 101 of the empty cylinder faces downward and contacts the small chuck 201 first. Since the small chuck 201 is fixedly connected to the machine body and its position remains unchanged, when the empty cylinder 1 is rotated in step 20, the small end 101 of the empty cylinder will not move significantly, ensuring that the large end 102 of the empty cylinder can be rotated downward and assembled on the large chuck 202. By moving the large chuck 202, the positioning of the empty cylinder 1 is achieved.

[0042] Preferably, Figure 4 As shown, in the step 20, the preset position is that the upper edge of the inner cavity of the small end 101 of the empty cylinder is against the first positioning convex body 203 of the small chuck 201 of the cradle. The upper edge of the inner cavity of the small end 101 is against the first positioning convex body 203 of the small chuck 201 of the cradle. When the empty cylinder 1 is rotated in step 20, the lower edge of the inner cavity of the small end 101 rotates downward, so that the inner cavity of the small end 101 covers all or part of the first positioning convex body 203 of the small chuck; at the same time, the large end 102 rotates downward, so that the inner cavity of the large end 102 is opposite to the second positioning convex body 204 of the large chuck. Move the large chuck 202 toward the direction of the small chuck 201, so that the second positioning convex body 204 of the large chuck is completely or partially located in the inner cavity of the large end 102. In this way, the empty cylinder 1 is clamped between the small chuck 201 and the large chuck 202, and the installation of the empty cylinder 1 is realized.

[0043] Preferably, the step 20 specifically includes: rotating the big end 102 of the empty cylinder downward so that the first positioning protrusion 203 of the small clamp 201 of the cradle is completely or partially located in the inner cavity of the small end 101 of the empty cylinder; then moving the big clamp 202 of the cradle toward the small clamp 201 to clamp the empty cylinder 1 so that the second positioning protrusion 204 of the big clamp 202 of the cradle is completely or partially located in the inner cavity of the big end 102 of the empty cylinder, so that the empty cylinder 1 is installed between the small clamp 201 and the big clamp 202 of the cradle. In step 20, the empty cylinder 1 is installed on the cradle 2 by rotating the big end 102 of the empty cylinder so that the big end 102 of the empty cylinder is rotated downward.

[0044] Preferably, in step 20, when the empty cylinder big end 102 is rotated downward, the empty cylinder small end 101 does not rotate upward. When the empty cylinder 1 is rotated in step 20, a force is applied to the empty cylinder small end 101 so that the empty cylinder small end 101 does not rotate upward. This is equivalent to rotating the empty cylinder big end 102 with the contact portion between the empty cylinder small end 101 and the first positioning protrusion 203 of the small clamp 201 of the cradle as the rotation center.

[0045] Preferably, in step 20, the big end 102 of the empty cylinder is rotated downward so that the axis of the empty cylinder coincides with the axis of the large chuck 202 and the small chuck 201 of the cradle. In step 10, the inclination angle of the axis of the empty cylinder is a preset angle, so as to install the empty cylinder 1 on the cradle 2. In step 20, the empty cylinder 1 is rotated to change the inclination angle of the axis of the empty cylinder until the axis of the empty cylinder coincides with the axis of the large chuck and the small chuck of the cradle.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above specific embodiments, and the descriptions in the above specific embodiments and the specification are only for further illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed for protection.

Claims

1. A method for packing empty bobbins for a winding machine, characterized in that: The method comprises: Step 10, moving the empty tube (1) with the axis tilted at a preset angle toward the cradle (2) of the winding machine; Step 20: When the empty tube (1) reaches the preset position, the empty tube (1) is rotated and mounted on the cradle (2) of the winding machine.

2. The method according to claim 1, characterized in that: Before step 10, the method further includes: Step 01, grab an empty tube (1) from an empty tube rack (4), and move the empty tube (1) out of the empty tube rack (4); Step 02: Rotate the empty cylinder (1) so that the inclination angle of the axis of the empty cylinder is a preset angle.

3. The method according to claim 2, characterized in that In step 02, after the empty tube (1) is moved out of the empty tube rack (4) and moved to the cradle (2) of the winding machine through a first stroke, the empty tube (1) is rotated.

4. The method according to claim 1, characterized in that: In step 02, the empty cylinder (1) is rotated during the movement; or In step 02, after the empty cylinder (1) is rotated at a certain position, step 10 is then entered.

5. The method according to claim 1, characterized in that Before step 10, the method further includes: The empty cylinder (1) is located in the empty cylinder rack (4), and the inclination angle of the axis of the empty cylinder is a preset angle; Take the empty cartridge (1) from the empty cartridge holder (4).

6. The method according to claim 1, characterized in that Before step 10, the method further includes: Adjusting the grasping device (3) so that the inclination angle of the axis of the grasping portion of the grasping device (3) is a preset angle; The empty cylinder (1) is grabbed from the empty cylinder rack (4) using the grabbing device (3), the axis of the grabbed empty cylinder (1) being tilted at the preset angle, and the empty cylinder (1) is moved out of the empty cylinder rack (4).

7. The method according to claim 1, characterized in that In step 10, the empty tube (1) is moved downward from above the cradle (2) of the winding machine.

8. The method according to claim 1, characterized in that In step 10, the small end (101) of the empty tube faces downward, and the large end (102) of the empty tube faces upward.

9. The method according to claim 1, characterized in that: In step 20, the preset position is that the upper edge of the inner cavity of the small head end (101) of the empty cylinder abuts against the first positioning protrusion (203) of the small clamp (201) of the cradle.

10. The method according to claim 9, characterized in that The step 20 specifically includes: The large end (102) of the empty cylinder is rotated downward so that the first positioning protrusion (203) of the small clamp (201) of the cradle is completely or partially located in the inner cavity of the small end (101) of the empty cylinder; then the large clamp (202) of the cradle is moved toward the small clamp (201) to clamp the empty cylinder (1) so that the second positioning protrusion (204) of the large clamp (202) of the cradle is completely or partially located in the inner cavity of the large end (102) of the empty cylinder, so that the empty cylinder (1) is installed between the small clamp (201) and the large clamp (202) of the cradle.

11. The method according to claim 10, characterized in that In step 20, the large end (102) of the empty cylinder is rotated downward so that the axis of the empty cylinder coincides with the axes of the large chuck (202) and the small chuck (201) of the cradle.

12. The method according to claim 2 or 5, characterized in that: Using a grabbing device (3) to grab an empty tube (1) from an empty tube rack (4); The method further comprises: Step 30: The gripping device (3) releases the empty tube (1).

13. The method according to claim 6, characterized in that The method further comprises: Step 30: The gripping device (3) releases the empty tube (1).

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