CN201809512U - Integral doffing tube gripper for spinning frame with jacking loosening mechanism - Google Patents

Abstract

A collective doffing bobbin grabber for spinning frame with top loosening mechanism, the ejector rod is connected with the piston block through the hinge, the movable hinge is connected with the ejector rod and the connecting rod, the middle end side wall of the connecting rod is connected with the lever bracket through the hinge, and the lever bracket Fixed on the air frame, the other end of the connecting rod is equipped with a slider, the thimble is connected with the connecting rod through the slider, the thimble penetrates into the grab tube hole, the thimble is covered with a return spring ii, and the piston block is in the air cavity of the air frame. The technical effects of the utility model are: 1. Equip each tube grabber with a top-loosening mechanism. Before the collective extubation of the air frame, use the top-loosen mechanism to loosen the bobbin from the spindle to reduce the collective extubation of the air frame. Required air pressure; 2. The piston length of the jacking mechanism can be close to the length of the air frame, and the area is large. Under the same air pressure condition, sufficient jacking force can be obtained, which is conducive to improving the reliability of the extubation of the collective doffing device .

Description

Collective doffing bobbin gripper for ring spinning frame with top loosening mechanism

technical field

The utility model relates to a collective doffing bobbin for spinning frames, in particular to a collective doffing bobbin for spinning frames with a top loosening mechanism.

Background technique

At present, the cylinder-type tube grabber widely used in the collective doffing device of spinning frames is shown in Figure 1. The tube grabber seat 6 is fixed on the air frame 1 through bolts 4 and screws 5, and the cavity of the tube grabber seat 6 is equipped with a piston. 8. The piston 8 is equipped with a return spring 7, and a sealed air bag 3 is provided between the air frame 1 and the tube grab seat 6. When replacing the bobbin, the air frame 1 imports the air of a certain pressure through the air hole 2, pushes the piston 8 forward through the air bag 3, and presses the bobbin 11 in the grasping pipe hole 10 tightly. The power source drives the air frame 1 to move up and down, so that the collective extubation and intubation operations of the bobbin 11 on the spindle 9 can be realized.

The collective doffing device using this kind of tube grabber can reduce the number of workers and improve the operating efficiency of the unit. It has been integrated on the new spinning frame and has become an important part of these models. At present, there are still a large number of old-fashioned spinning frames in operation in the country. Due to structural limitations and cost constraints, the existing collective doffing devices are difficult to apply to old-fashioned machines. The extraction of full bobbins and insertion of empty bobbins in these old-fashioned spinning frames are still done manually or by doffing trolleys. These doffing methods have problems such as high labor intensity, many labors, poor reliability of pulling and inserting pipes, and low operating efficiency. Drawing lessons from the tube grabber and air frame structure of the collective doffing device of the new model, it can provide a technical basis for realizing the collective doffing device of the old model. The model is larger, and the existing tube grabber and gas circuit structure are difficult to guarantee the reliability of extubation.

Contents of the invention

The purpose of the utility model is to provide a collective doffing tube grabber for spinning frames with a top loosening mechanism, which can reduce the air pressure required for extubation and improve the reliability of extubation operation.

The utility model is realized in this way, and it comprises air frame, air hole, air bag, bolt, screw, grasping device seat, return spring i, piston, spindle, grasping pipe hole, bobbin, thimble, return spring ii, slide block . A sealed air bag is provided between the frame and the tube grab seat, and a tube grab hole is provided at the upper end of the tube grab seat, and a yarn tube is installed in the tube grab hole, and a spindle is arranged inside the tube, and air holes are provided on the surface of the side wall of the air frame. The feature is that the ejector rod is connected with the piston block through a hinge, the movable hinge connects the ejector rod and the connecting rod, the middle end side wall of the connecting rod is connected with the lever bracket through a hinge, the lever bracket is fixed on the air frame, and the other end of the connecting rod is equipped with a slider , the thimble is connected with the connecting rod through the slider, the thimble penetrates into the grasping pipe hole, the thimble is covered with a return spring ii, and the piston block is in the air chamber of the air frame.

The ejector rod is connected with the piston block through threads, and the connecting rod is provided with a waist-shaped groove, and a pin is arranged in the waist-shaped groove, and the pin is connected with the lever bracket.

The technical effects of the utility model are: 1. Equip each tube grabber with a top-loosening mechanism. Before the collective extubation of the air frame, use the top-loosen mechanism to loosen the bobbin from the spindle to reduce the collective extubation of the air frame. Required air pressure; 2. The piston length of the jacking mechanism can be close to the length of the air frame, and the area is large. Under the same air pressure condition, sufficient jacking force can be obtained, which is conducive to improving the reliability of the extubation of the collective doffing device .

Description of drawings

Fig. 1 is a structural schematic diagram of an existing pipe grabber.

Fig. 2 and Fig. 3 are structural representations of the utility model.

Detailed ways

As shown in Figure 2, the utility model is realized in this way. The pipe grab seat 6 is fixed on the air frame 1 through the bolt 4 and the screw 5. The cavity of the pipe grab seat 6 is equipped with a piston 8, and the piston 8 is equipped with a reset A spring i 7, a sealed air bag 3 is provided between the air frame 1 and the tube grab seat 6, and a tube grab hole is provided at the upper end of the tube grab seat, and a yarn tube 11 is installed in the tube grab hole 10, and a spindle 9 is arranged in the yarn tube , Air frame 1 side wall surface is provided with air hole 2, it is characterized in that ejector rod 18 is connected with piston block 21 through hinge 20, movable hinge 19 connects ejector rod 18 and connecting rod 15, and the middle end side wall of connecting rod 15 passes hinge 17 Connected with the lever bracket 16, the lever bracket 16 is fixed on the air frame 1, the other end of the connecting rod 15 is equipped with a slider 14, the thimble 12 is connected with the connecting rod 15 through the slider 14, the thimble 12 penetrates the grasping pipe hole 10, and the thimble Covered with back-moving spring II 13, the piston block 21 is in the air chamber 22 of the air frame. As shown in Figure 3, it is another scheme of the utility model, the push rod 18 is connected with the piston block 21 through the thread 24, a waist-shaped groove is opened on the connecting rod 15, and a pin is arranged in the waist-shaped groove, and the pin 23 is connected with the lever bracket 16 connected. The extubation process of the utility model: firstly, the vent hole 2 inputs the air of a certain pressure, and the piston 8 is pushed forward by the air bag 3, and the yarn tube 11 in the grasping tube hole 10 is pressed and grasped firmly. Then, air pressure is input into the air chamber 22 to push the piston 21 and the ejector rod 18 to move upward, the end of the connecting rod 15 located on the air frame is lifted upward, and the end located on the pipe grab is pressed downward, driving the thimble 12 to press the spindle 9 downward. , the bobbin gripper drives the bobbin 11 to move upwards, so that the bobbin 11 is loosened. Then, the air pressure in the air cavity 22 is retreated, and the return spring II 13 pushes up one end of the connecting rod 15, and the thimble 12 breaks away from the spindle 9, while the other end of the connecting rod 15 pushes down the piston block 21 and moves down to the initial position. The top loosening mechanism resets and is ready for the next operation. Finally, the air frame 1 moves upwards again, and all bobbins are taken out from the spindles.

Claims (2)

1. the fine spining machine collective with the loose mechanism in top doffs and grabs the pipe device, it comprises the gas frame, pore, air bag, bolt, screw, grab pipe device seat, back-moving spring i, piston, spindle, tube grasping hole, spool, thimble, back-moving spring ii, slide block, connecting rod, lever dolly, hinge, push rod, hinges, piston block, grabbing pipe device seat is fixed on the gas frame by bolt and screw, grab in the chamber of managing the device seat piston is housed, back-moving spring i is housed on the piston, gas frame and grab the air bag that is provided with sealing between the pipe device seat, grab pipe device seat upper end and be provided with tube grasping hole, spool is installed in the tube grasping hole, be provided with spindle in the spool, gas frame sidewall surfaces is provided with pore, it is characterized in that push rod links to each other with piston block by hinge, hinges connects push rod and connecting rod, and the middle-end sidewall of connecting rod links to each other with lever dolly by hinge, lever dolly is fixed on the gas frame, the connecting rod other end is equipped with slide block, and thimble links to each other with connecting rod by slide block, and thimble penetrates tube grasping hole, be with back-moving spring ii on the thimble, piston block is in the air cavity of gas frame.

2. the fine spining machine collective that band according to claim 1 pushes up loose mechanism doffs and grabs the pipe device, it is characterized in that described push rod links to each other with piston block by screw thread, has kidney slot on the connecting rod, is provided with pin in the kidney slot, and pin links to each other with lever dolly.

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