Automatic winder with cone yarn clamping device

Abstract

The utility model provides an automatic winder with a cone yarn clamping device, a single spindle of the winder comprises the cone yarn clamping device and a single spindle controller, the cone yarn clamping device comprises a large-end wheel, a small-end wheel and a rear bow bracket, and the automatic winder is characterized in that a piston disc is arranged at the outer end of a sliding shaft in the large-end wheel, and a piston cavity shell covers the piston disc; the sliding shaft transversely slides in an inner hole of the piston cavity shell. A first cavity and a second cavity are formed in the two sides of the piston disc, and an exhaust hole is formed in the second cavity. The first cavity is provided with an opening mechanism air inlet communicated with the air supply pipeline, the single spindle controller controls an electric control valve on the opening mechanism air inlet to be opened and closed, the piston disc drives the sliding shaft to slide, the cone yarn clamping device is automatically opened to complete doffing, and the sliding shaft is automatically reset under the action of the reset compression spring. When doffing operation needs to be carried out, the cone yarn clamping device can be opened to finish doffing without being matched with the doffing trolley after being braked, the manufacturing cost can be reduced, the doffing time can be shortened, and the production efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of textile machinery manufacturing, and relates to the improvement of an automatic winding machine, in particular to an automatic winding machine with a bobbin clamping device. Background Art

[0002] In the existing automatic winding machine, the bobbin is supported by the bobbin clamping device during the bobbin winding process to ensure that the bobbin always rotates in the ideal position. In addition to supporting and clamping the bobbin, the bobbin clamping device also has functions such as braking, and is one of the key components of the automatic winding machine.

[0003] The typical bobbin clamping device on the existing automatic winding machine is the technical solution disclosed in the Chinese invention patent entitled "A winding support device for a winding machine" (Announcement No.: CN 108750804B). The small end wheel and the big end wheel of the patent are respectively arranged at the two ends of the rear bow bracket, and its characteristics are: the big end wheel includes a big end wheel shell, a big end wheel cover, a compression spring, an air bag and a big end wheel brake block, the shaft hole opened on one end of the rear bow bracket is movably inserted into the big end wheel shaft, and the big end wheel shaft is movably connected to the arm opening plate on one end, the arm opening plate body is connected to the arm opening connecting rod, one end of the arm opening connecting rod is hinged to the rear bow bracket, and the other end of the arm opening connecting rod is connected to the arm opening rod. The big end wheel shell is fixed on the sealed bearing arranged on the other end of the big end wheel shaft, and a compression spring is provided in the middle of the big end wheel shaft, and the two ends of the compression spring are respectively pressed in the shaft hole and on the sealed bearing. A big end wheel cover is arranged on the front end of the big end wheel shell, an air bag is arranged between the big end wheel cover and the front end of the big end wheel shell, and a big end wheel brake block arranged in the big end wheel shell cavity is hinged with the rear curved bow bracket.

[0004] When the weight or size of the bobbin reaches the full bobbin requirement, the "bobbin drop" operation needs to be performed. At this time, the bobbin clamping device needs to be braked and opened. At this time, the bobbin will stop rotating, and the bobbin clamping device will no longer provide support for the bobbin, and the bobbin falls on the conveying channel. On existing automatic winding machines, the bobbin drop trolley usually completes the opening action of the bobbin clamping component, and the bobbin clamping device itself does not have the function of automatic opening (it only has the function of clamping the bobbin for rotation and braking the rotating bobbin function). In order to achieve this function, the bobbin drop trolley of the existing automatic winding machine adds a motor or a cylinder as an actuator, which greatly increases the manufacturing cost of the product; when the bobbin is dropped, the bobbin drop trolley performs the opening action of the bobbin clamping component. Due to the high positioning accuracy requirements of the bobbin drop trolley to align with the single spindle opening rod position, and the related structure of the driving execution opening component is complex, it is easy to get stuck, resulting in a decrease in the bobbin drop efficiency, which has an adverse effect on the overall output.

[0005] How to design an automatic winding machine with a bobbin clamping device, which can open and complete bobbin doffing without the need for a doffing trolley after the bobbin clamping device stops, thus reducing manufacturing costs, shortening doffing time, and improving production efficiency. This is a technical problem that needs to be solved urgently in this field. Utility Model Content

[0006] The utility model aims to solve the problems and shortcomings of the prior art and provides an automatic winding machine with a bobbin clamping device. When a bobbin drop operation is required, the bobbin clamping device can be opened to complete the bobbin drop after being braked, without the need for a bobbin drop trolley to cooperate with itself, thereby reducing manufacturing costs, shortening bobbin drop time and improving production efficiency.

[0007] The purpose of this utility model is achieved through the following technical solutions:

[0008] The camshaft is an axially-coupled device for camming a yarn, and the camshaft is actuated by a spring, and the camshaft is engaged with the gear train and the gear train is engaged with the gear train. A first chamber and a second chamber with variable volumes, the piston chamber housing is connected to the rear bending bow bracket, an exhaust hole is arranged on the outer end of the second chamber, and an air inlet of an opening mechanism is arranged on the side wall of the first chamber; the air supply pipeline is connected to the first chamber for supplying air thereto, an electric-controlled valve is arranged on the air inlet of the opening mechanism, and the electric-controlled valve is connected to the single spindle controller for controlling the opening and closing of the air inlet of the opening mechanism; the bobbin clamping device is in a working state of clamping the bobbin, the electric-controlled valve is closed, and the volume of the first chamber becomes smaller after the pressure is relieved; after the bobbin clamping device stops the bobbin, the electric-controlled valve is opened, and gas is filled into the first chamber through the air inlet of the opening mechanism, so that the piston disk drives the sliding shaft to move toward the second chamber, thereby realizing automatic opening and completing the bobbin dropping, and after the first chamber is depressurized, the sliding shaft is automatically reset under the action of the reset compression spring.

[0009] Improvement on the above technical solution: a screw hole is arranged on the end face of the sliding shaft, a fixing hole is arranged in the middle of the piston disc, and the piston disc is fixedly installed on one end of the sliding shaft by passing bolts through the fixing hole and the screw hole. A sealing ring is arranged around the piston disc, and the sealing ring is in contact with the inner wall of the piston chamber housing.

[0010] Further improvement of the above technical solution: the outer port of the piston chamber housing is provided with a thread, and a corresponding thread is provided on an end cover, the end cover is connected to the outer port of the piston chamber housing through a thread, and the exhaust hole is provided in the middle of the end cover.

[0011] Further improvement of the above technical solution: a rectangular anti-rotation groove is transversely arranged on the inner wall of the piston chamber housing, the sliding shaft is fixedly connected to an anti-rotation pin, and the anti-rotation pin is inserted into the anti-rotation groove to constrain the sliding shaft and prevent it from rotating.

[0012] Further improvement to the above technical solution: the rear bending bow bracket is provided with an inner hole, and the piston chamber housing and the inner hole on the rear bending bow bracket are in interference fit.

[0013] Further improvement to the above technical solution: a bearing assembly is provided between the sliding shaft and the large end wheel housing, so that the large end wheel housing can rotate relative to the sliding shaft.

[0014] Further improvement to the above technical solution: a mounting hole is provided on the rear curved arch bracket for connecting it with components on the automatic winding machine using fasteners to form a single spindle of the automatic winding machine with complete functions.

[0015] Compared with the prior art, the utility model has the following advantages and positive effects:

[0016] The utility model provides a bobbin clamping device with an automatic opening function. When the bobbin-dropping operation is required, the bobbin clamping device can automatically open after the bobbin-dropping operation is completed. Combined with this structure, the bobbin-dropping trolley can cancel the opening actuator of the bobbin clamping device, thereby reducing the manufacturing cost; at the same time, the bobbin clamping device can automatically open after the bobbin stops rotating, which has higher execution efficiency and can significantly shorten the bobbin-dropping time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of a bobbin clamping device in an automatic bobbin winder with a bobbin clamping device according to the utility model;

[0018] Figure 2 It is a partial cross-sectional view of a yarn clamping device in an automatic winding machine with a bobbin yarn clamping device according to the utility model in a normal winding working state;

[0019] Figure 3It is a partial cross-sectional view of a bobbin clamping device in an automatic bobbin winder with a bobbin clamping device in a non-working state according to the utility model;

[0020] Figure 4 It is a partial cross-sectional view of a state in which a bobbin clamping device in an automatic bobbin winder with a bobbin clamping device is automatically opened after the bobbin stops rotating;

[0021] Figure 5 It is a cross-sectional schematic diagram of the anti-rotation structure of the sliding shaft in the bobbin yarn clamping device of the utility model along the axis;

[0022] Figure 6 It is a schematic diagram of a radial cross-section of the sliding shaft anti-rotation structure in the bobbin yarn clamping device of the utility model.

[0023] In the figure: 1. big end wheel; 1.1. big end wheel housing; 1.2. sliding shaft; 1.3. return spring; 1.4. big end wheel brake block; 1.5. brake actuator; 1.6. air bag; 1.7. big end wheel cover; 1.8. bearing assembly; 1.9. air supply port of air bag; 1.10. air inlet of opening mechanism; 2. small end wheel; 3. rear bending bow bracket; 3.1. mounting hole; 4. piston chamber housing; 5. barrel; 6. piston disc; 7. second chamber; 8. end cover; 8.1. exhaust hole; 9. first chamber; 10. sealing ring; 11. anti-rotation pin; 12. anti-rotation groove. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] See also Figure 1-Figure 6The utility model is an embodiment of an automatic winding machine with a bobbin clamping device, comprising a single spindle of the winding machine, the single spindle of the winding machine comprising a bobbin, a bobbin support arm, a grooved drum, a grooved drum transmission mechanism, a bobbin clamping device and a single spindle controller, the bobbin clamping device comprising a large end wheel 1, a small end wheel 2 and a rear bow bracket 3, the small end wheel 2 and the large end wheel 1 are respectively arranged at the two ends of the rear bow bracket 3, the large end wheel 1 comprises a large end wheel shell 1.1, a large end wheel cover 1.7, a sliding shaft 1.2, a reset spring 1.3, an air bag 1.6, a large end wheel brake block 1.4 and a brake actuator 1.5, the sliding shaft 1.2 is movably connected to the large end wheel shell 1.1, and the large end wheel shell 1.1 is fixedly connected to the large end wheel cover 1.7. An air supply pipeline is arranged on the sliding shaft 1.2, a piston disc 6 is arranged on the outer end of the sliding shaft 1.2 extending out of the large end wheel shell 1.1, and a piston chamber housing 4 covers the piston disc 6 in the middle of its chamber. The piston chamber housing 4 has an inner hole, and the sliding shaft 1.2 slides laterally in the inner hole. A first chamber 9 and a second chamber 7 with variable volumes are formed on both sides of the piston disk 6. The piston chamber housing 4 is connected to the rear bending bow bracket 3. An exhaust hole 8.1 is arranged on the outer end of the second chamber 7, and an opening mechanism air inlet 1.10 is arranged on the side wall of the first chamber 9. The above-mentioned air supply pipeline is connected to the first chamber 9 for supplying air thereto. An electric-controlled valve is arranged on the opening mechanism air inlet 1.10, and the electric-controlled valve is connected to the single spindle controller for controlling the opening and closing of the opening mechanism air inlet 1.10. The bobbin clamping device is in the working state of clamping the bobbin yarn, the electric-controlled valve is closed, and the volume of the first chamber 9 becomes smaller after the pressure is relieved (the volume of the first chamber 9 is the smallest when the bobbin 5 is not clamped, such as Figure 3 As shown, after the bobbin 5 is clamped, the first chamber 9 has only a little space, as shown in FIG. Figure 2 As shown); after the bobbin clamping device stops the bobbin, the electric control valve opens, and gas is filled into the first chamber through the air inlet 1.10 of the opening mechanism, so that the piston plate 6 drives the sliding shaft 1.2 to move toward the second chamber, and the bobbin is automatically opened and dropped. After the first chamber is depressurized, the sliding shaft 1.2 is automatically reset under the action of the reset compression spring 1.4.

[0026] Furthermore, a screw hole is provided on the end face of the sliding shaft 1.2, and a fixing hole is provided in the middle of the piston disc 6. Bolts are passed through the fixing hole and the screw hole to fix the piston disc 6 on one end of the sliding shaft 1.2. A sealing ring 10 is provided around the piston disc 6, and the sealing ring 10 is in contact with the inner wall of the piston chamber housing 4.

[0027] Furthermore, the outer port of the piston chamber housing 4 is provided with an external thread or an internal thread, and an end cover 8 is provided with a corresponding internal thread or an external thread. The end cover 8 is connected to the outer port of the piston chamber housing 4 through threads, and the exhaust hole 8.1 is provided in the middle of the end cover 8.

[0028] In order to increase the reliability of the structure, the sliding shaft 1.2 is not expected to rotate during the use of the package yarn clamping device, but only slides left and right. Figure 5 and Figure 6 As shown, a rectangular anti-rotation groove 12 is transversely arranged on the inner wall of the piston chamber housing 4, and an anti-rotation pin 11 is fixedly connected to the sliding shaft 1.2 (preferably, a blind hole is opened on the sliding shaft 1.2, and the anti-rotation pin 11 and the blind hole are interference fit to achieve the fixation of the anti-rotation pin 11). The anti-rotation pin 11 is inserted into the anti-rotation groove 12, can move horizontally, and constrains the sliding shaft 1.2 to prevent it from rotating.

[0029] For easy installation, the rear bow bracket 3 has an inner hole, and the piston chamber housing 4 is interference fit with the inner hole of the rear bow bracket 3. A mounting hole 3.1 is provided on the rear bow bracket 3 for connecting it with the components on the automatic winding machine using fasteners to form a single spindle of the automatic winding machine with complete functions.

[0030] In order to realize flexible rotation of the big end wheel housing 1.1, a bearing assembly 1.8 is provided between the sliding shaft 1.2 and the big end wheel housing 1.1, so that the big end wheel housing 1.1 can rotate relative to the sliding shaft 1.2.

[0031] During specific production, the big end wheel housing 1.1 and the big end wheel cover 1.7 are connected by bolts; the big end wheel brake block 1.4 is fixedly connected to the brake actuator 1.5; the brake actuator 1.5 is hinged to the rear bow bracket 3, and preferably, the brake actuator 1.5 is a cylinder with automatic resetting function.

[0032] In conjunction with the accompanying drawings, the working principle and use of the utility model are described as follows: When the bobbin 5 is not installed, the relative position relationship of each component is as shown in the attached Figure 3 As shown, under the action of the return spring 1.3, the large end wheel housing 1.1 and the airbag 1.6 and other components are pushed to the left and away from the piston chamber housing 4. At this time, the package yarn clamping device is in a non-working state as a whole.

[0033] Figure 2 The figure shows the state where the bobbin 5 has been installed, which is also the normal working state of the bobbin clamping device. The bobbin 5 is clamped between the large end wheel 1 and the small end wheel 2. The structure of the small end wheel 2 is relatively simple, and it mainly supports the bobbin 5. After the bobbin 5 is clamped by the large end wheel 1 and the small end wheel 2, the small end wheel 2 and the side close to the bobbin 5 can rotate synchronously with the bobbin 5, and the end of the small end wheel 2 away from the bobbin 5 is fixedly connected to the rear bow bracket 3. The reset spring 1.3 is in a compressed state at this time, the right side of the reset spring 1.3 is in contact with the rear bow bracket 3, and the left side of the reset spring 1.3 always provides a leftward thrust for the large end wheel 1, so that the bobbin 5 is clamped.

[0034] During normal winding, Figure 2As shown, the bobbin 5 rotates under the driving action of the grooved drum, and the big end wheel 1 and the small end wheel 2 also rotate synchronously with the bobbin 5. When the bobbin 5 needs to be cut or replaced, the brake actuator 1.5 is activated to push the brake block 1.4 to radially squeeze the big end wheel shell 1.1, thereby stopping the big end wheel 1. The part of the big end wheel cover 1.7 close to the inner wall of the bobbin 5 is conical, and an opening is provided on the conical surface of the big end wheel cover 1.7. The airbag 1.6 is located on the inner side of the big end wheel cover 1.7. When compressed air flows in through the airbag air supply port 1.9, flows inside the sliding shaft 1.2 and finally enters the airbag 1.6, the airbag 1.6 is filled with compressed air and expands. Part of the airbag 1.6 is exposed from the opening on the big end wheel cover 1.7, and the friction between the big end wheel cover 1.7 and the bobbin 5 increases, thereby stopping the bobbin 5 from rotating.

[0035] When the bobbin is full and the bobbin is dropped or replaced, the bobbin 5 must be stopped first, and the single spindle controller must be used to open the bobbin 5 after the bobbin 5 stops rotating. The piston chamber housing 4 has an inner hole, and the sliding shaft 1.2 can slide left and right in the inner hole of the piston chamber housing 4.

[0036] When the single spindle controller performs the opening action, the electric control valve is opened, and the compressed gas enters the first chamber 9 from the air inlet 1.10 of the opening mechanism. Under the action of the air pressure, the piston plate 6 is pushed to the right. Preferably, the thrust provided by the compressed air is sufficient to overcome the spring force of the return spring 1.3, thereby driving the sliding shaft 1.2 to slide to the right in the inner hole of the housing 4 until it reaches a fully open state. Figure 4 At this time, the first chamber 9 gradually increases, the second chamber 7 gradually decreases, and the gas in the second chamber 7 is discharged from the exhaust hole 8.1.

[0037] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. An automatic winding machine with a bobbin clamping device, comprising a single spindle of the winding machine, the single spindle of the winding machine comprising a bobbin, a bobbin support arm, a grooved drum, a grooved drum transmission mechanism, a bobbin clamping device and a single spindle controller, the bobbin clamping device comprising a large end wheel, a small end wheel and a rear bow bracket, the small end wheel and the large end wheel are respectively arranged at the two ends of the rear bow bracket, the large end wheel comprises a large end wheel housing, a large end wheel outer cover, a sliding shaft, a reset compression spring, an air bag, a large end wheel brake block and a brake actuator, the sliding shaft is movably connected to the large end wheel housing, the large end wheel housing is fixedly connected to the large end wheel outer cover, an air supply pipeline is arranged on the sliding shaft, and it is characterized in that A piston disc is arranged on the outer end of the sliding shaft extending out of the large end wheel housing, and a piston chamber housing covers the piston disc in the middle of its chamber. The piston chamber housing has an inner hole, and the sliding shaft slides transversely in the inner hole. A first chamber and a second chamber with variable volumes are formed on both sides of the piston disc. The piston chamber housing is connected to the rear bending bow bracket, an exhaust hole is arranged on the outer end of the second chamber, and an air inlet of an opening mechanism is arranged on the side wall of the first chamber; the air supply pipeline is connected to the first chamber for supplying air thereto, and an electric control is arranged on the air inlet of the opening mechanism. Valve, the electric control valve is connected with the single spindle controller, and is used to control the opening and closing of the air inlet of the opening mechanism; when the bobbin clamping device clamps the bobbin in working state, the electric control valve is closed, and the volume of the first chamber becomes smaller after the pressure is relieved; after the bobbin clamping device stops the bobbin, the electric control valve opens, and gas is filled into the first chamber through the air inlet of the opening mechanism, so that the piston disk drives the sliding shaft to move toward the second chamber, realizes automatic opening and completes the bobbin dropping, and after the first chamber is depressurized, the sliding shaft is automatically reset under the action of the reset spring.

2. The automatic winding machine with a bobbin clamping device according to claim 1, characterized in that: A screw hole is arranged on the end surface of the sliding shaft, a fixing hole is arranged in the middle of the piston disc, and the piston disc is fixedly installed on one end of the sliding shaft by passing bolts through the fixing hole and the screw hole. A sealing ring is arranged around the piston disc, and the sealing ring is fitted with the inner wall of the piston chamber housing.

3. The automatic winding machine with a bobbin clamping device according to claim 1 or 2, characterized in that: The outer port of the piston chamber housing is provided with threads, and a corresponding thread is provided on an end cover. The end cover is connected to the outer port of the piston chamber housing through threads, and the exhaust hole is provided in the middle of the end cover.

4. The automatic winding machine with a bobbin clamping device according to claim 1 or 2, characterized in that: A rectangular anti-rotation groove is transversely arranged on the inner wall of the piston chamber housing, and the sliding shaft is fixedly connected to an anti-rotation pin. The anti-rotation pin is inserted into the anti-rotation groove to constrain the sliding shaft and prevent it from rotating.

5. The automatic winding machine with a bobbin clamping device according to claim 3, characterized in that: A rectangular anti-rotation groove is processed on the inner wall of the piston chamber housing, and the sliding shaft is fixedly connected to an anti-rotation pin. The anti-rotation pin is inserted into the anti-rotation groove to constrain the sliding shaft and prevent it from rotating.

6. The automatic winding machine with a bobbin clamping device according to claim 1 or 2, characterized in that: The rear bending bow bracket is provided with an inner hole, and the piston chamber housing and the inner hole of the rear bending bow bracket are in interference fit.

7. The automatic winding machine with a bobbin clamping device according to claim 5, characterized in that: The rear bending bow bracket is provided with an inner hole, and the piston chamber housing and the inner hole of the rear bending bow bracket are in interference fit.

8. The automatic winding machine with a bobbin clamping device according to claim 1 or 2, characterized in that: A bearing assembly is provided between the sliding shaft and the large end wheel housing, so that the large end wheel housing can rotate relative to the sliding shaft.

9. The automatic winding machine with a bobbin clamping device according to claim 7, characterized in that: A bearing assembly is provided between the sliding shaft and the large end wheel housing, so that the large end wheel housing can rotate relative to the sliding shaft.

10. The automatic winding machine with a bobbin clamping device according to claim 1 or 2, characterized in that: The rear curved arch bracket is provided with a mounting hole for connecting it with components on the automatic winding machine using fasteners to form a single spindle of the automatic winding machine with complete functions.

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