CN1157320C - Wire Cloth Winding Machine - Google Patents

Abstract

A yarn sheet winder is to accurately control the tension of a yarn sheet during winding operation and to facilitate winding tension control. In this yarn sheet winder, a tension adjusting roller (5) is movably provided between a feed roller (4) and a winding beam (6) so as to be separable from the feed roller (4) and to be pressed to the yarn sheet in a tension applying direction by an actuator (7). When winding is stopped, the yarn sheet (1) can be held between the feed roller (4) and the tension adjusting roller (5), and during winding operation, the tension adjusting roller (5) is separated from the feed roller (4), and while applying tension by the actuator (7), the winding tension of the yarn sheet (1) is controlled by a winding tension control device (8). The winding tension control device (8) is provided with an actuator control means (11) for controlling the pressing force of the tension adjusting roller (5) to the yarn sheet (1), and a position control means (12) for maintaining the tension adjusting roller (5).

Description

Wire Cloth Winding Machine

technical field

The present invention relates to a part for controlling the coiling tension of a wire card clothing coiler.

Background technique

In the current wire card clothing (Sheet) coiling machine, it is well known that as disclosed in the Japanese Patent Application Laid-Open No. 6-101132, the wire card clothing after passing through the reed is bitten between the feed roller and the tension detection roller, and is picked up after passing the guide roller. Winding on the coiling beam.

However, the existing wire card clothing coiling machine is based on the detection value of the tension detection roller to control the speed of the feed roller and the winding beam, so the control during the coiling operation is more complicated, and because the tension detection roller and the The feed roller contacts and pushes it, so the detection value is inaccurate, and the winding tension cannot be controlled correctly. When reducing the contact and pressing of the tension detection roller to the feed roller in order to control the winding tension correctly, the clamping force of the wire card clothing will be weakened, and the wire card clothing will easily slip on the feed roller due to the reduced friction. Therefore, when performing the replacement operation of the winding beam, in order to cut off the wire card clothing on the winding side, the rotational force of the winding motor is released to reduce the tension of the wire clothing on the winding side. At this time, the upstream side of the feed roller and the If a large tension difference occurs on the downstream side, the wire clothing will slide on the feed roller, and the wire clothing on the upstream side of the feed roller will sag. In addition, during the subsequent feeding operation of the wire clothing, the wire clothing also slides on the feed roller, so that a sufficient tension cannot be obtained for the wire clothing on the upstream side of the feed roller.

When the winding is stopped, when the cut wire needle cloth end is sent out by the feeding roller and wound on the take-up beam, the driven guide roller does not rotate, and the running wire needle clothing is between the tension detection roller and the guide roller due to It hangs down into a U-shape due to its own weight, which disrupts the arrangement of the needle clothing. In extreme cases, the end of the needle clothing will go backwards, fall between the above two rollers, and entangle with each other, making the arrangement of the needle clothing very confusing. Troublesome wire arrangement correction work. In addition, there is also a problem that when an operator reaches out from the front of the take-up beam to repair the cut thread on the reed upstream of the feed roller when the thread is broken, it is difficult to operate due to the interference of the guide roller.

The purpose of the present invention enumerates as follows:

Correctly control the tension of wire card clothing during coiling operation, and it is easy to control the coiling tension.

When the wire clothing is clamped when the winding is stopped, the wire clothing can be firmly clamped, and the wire clothing on the upstream side of the feed roller can be reliably prevented from loosening.

The work performance when feeding out the end of the wire card clothing is improved when the winding is stopped, and the operator can easily access the reed, and it is easy to perform the operation on the reed when the thread breaks.

There is no special actuator for clamping the wire card clothing when the winding is stopped, so as to reduce costs and save space.

disclosure of invention

The invention described in technical solution 1 includes a feed roller, a take-up beam, and a take-up tension control device for adjusting the take-up tension of the wire card clothing, and is characterized in that: it also has a , the tension adjustment roller in contact with or separated from the feed roller, and the actuator connected to the tension adjustment roller so that the pushing force toward the wire card clothing acts on the tension adjustment roller. The winding tension control device includes the following parts : The actuator control mechanism controls the action of the actuator to adjust the pushing force of the tension adjustment roller to the wire card clothing; the position control mechanism controls the speed of at least one of the feeding roller and the take-up beam to make the tension The adjustment roller is kept at the reference position. During the coiling operation, when the tension adjustment roller is separated from the feed roller, a pushing force is applied to the wire card clothing by the actuator. When the coiling stops, at least when the wire card clothing is cut, the The wire clothing is clamped between the feed roller and the tension roller.

Next, the meaning and definition of the above sentence will be explained. The so-called "actuator" refers to devices including air pressure and oil pressure fluid pressure cylinders, torque motors and other electromagnetic torque generators.

The so-called "clamping" means that in addition to the meaning of pressing the wire card clothing from both sides, it also includes the concept that the feed roller and the tension adjustment roller are in contact with both sides of the wire card clothing. friction to prevent loosening of the wire clothing. The so-called concept of "clamping the wire clothing between the feed roller and the tension adjustment roller" includes automatically moving the tension adjustment due to the reduction of the tension of the wire clothing (releasing the rotational force of the winding beam and cutting the wire clothing). A structure in which the roller is contacted and pressed, and a structure in which the tension adjustment roller is forcibly moved regardless of the tension of the wire card clothing. The so-called "reference position" refers to the target position in order to obtain the specified coiling tension, which is an area in the movable range of the tension adjustment roller, and is used to control the coiling speed of the coiling beam coiling wire card clothing and the delivery of the feeding roller. The sending speed of wire card clothing is set correspondingly.

Between the tension adjustment roller and the take-up beam, there are structures provided with guide rollers and structures provided with guide rollers. With the structure of the guide roller, the tension direction of the wire card clothing on the side of the take-up beam hanging on the tension adjustment roller at the reference position is kept constant regardless of the coil diameter. Therefore, even when tension winding is completed, the pressing force of the tension adjustment roller on the wire card clothing can be kept constant. In the case of tapered tension winding, the pressing force is changed as the winding diameter increases.

With the structure of the guide roller, when the roll diameter increases, even if the tension adjustment roller is at the reference position, the tension direction of the wire card clothing on the side of the take-up beam hanging on the tension adjustment roller changes, and the wire clothing The tension, that is, the take-up tension also changes. Therefore, in order to make the winding tension a set value, it is necessary to detect the winding diameter, and change the pressing force of the tension adjustment roller on the wire card clothing according to the winding diameter. As an example, as in technical solution 2, the wire card clothing from the tension adjustment roller is directly coiled with the coiling beam, and the coiling diameter of the coiling beam is detected, the detection result of the actuator control mechanism and the coiling diameter of the coiling beam Control accordingly.

The invention according to claim 3 is characterized in that, in addition to the actuator for pressing the tension adjustment roller against the wire clothing, there is also an actuator for moving the tension adjustment roller to the feed roller.

The invention described in technical solution 4 is characterized in that the actuator is a device that has the following two functions: changing the pushing force on the wire card clothing; making the tension adjustment roller to feed the material The effect of roller movement. In addition, the force action direction of the pressing force includes the same direction as the movement direction of the tension adjustment roller and the opposite direction.

When the wire clothing is clamped when the winding is stopped, the tension of the wire clothing on the winding side is released, and a large tension difference is generated between the wire clothing on the upstream side of the feed roller and the wire clothing on the downstream side. Therefore, the wire clothing needs to be tightly clamped between the rollers, so that the wire clothing is tightly pressed against the feed roller in the locked state, and it is kept on the feed roller by friction. roll on. Therefore, when clamping the wire card clothing, it is best to reduce the tension of the wire card clothing while maintaining the pushing force of the actuator, reduce or release the traction of the take-up beam, and at the same time use the pushing force of the actuator to release the tension. The adjustment roller pushes against the feed roller. In addition, the tension adjustment roller may be pressed against the feed roller by increasing the pressing force of the actuator while maintaining the traction of the take-up beam. In this way, when the wire card clothing is clamped when the winding is stopped, as in the invention described in claim 5, the direction in which the actuator pushes the tension adjustment roller onto the wire card clothing is preferably toward the direction of the feed roller. The greater the take-up tension, the greater the tension on the upstream side of the feed roller, so a greater clamping force is required. Therefore, the pressing force of the tension adjustment roller against the feed roller must also be increased in proportion to the take-up tension.

A brief description of the drawings

Fig. 1 is a front view showing the winding operation of Embodiment 1 of the wire clothing winding machine of the present invention.

Fig. 2 is a front view showing the stop of winding according to Embodiment 1 of the present invention.

Fig. 3 is a front view showing Embodiment 2 of the wire clothing winding machine of the present invention.

Fig. 4 is a front view showing Embodiment 3 of the wire clothing winding machine of the present invention.

Fig. 5 is a front view showing Embodiment 4 of the wire clothing winding machine of the present invention.

Fig. 6 is a block diagram of a take-up tension control device according to Embodiment 1 of the present invention.

Ways of Carrying Out the Invention

Embodiment 1 of the wire card clothing coiling machine of the present invention is shown in Figure 1, along the advance direction of the wire card clothing 1, a reed 2, a bite roller 3, a feed roller 4, a tension adjustment roller 5, and a coiling beam are sequentially arranged. 6. The tension adjustment roller 5 is provided in a swingable manner, and the tension adjustment roller 5 can push the feed roller 4 by swinging, and it is also detachably arranged. When the wire card clothing is clamped when the winding is stopped, the tension adjustment roller 5 is pressed against the feed roller 4 by the pressing force of the actuator 7 . In addition, during the coiling operation, the tension of the wire card clothing is generated by the driving of the winding motor, and the tension adjustment roller 5 pushed by the pressing force is pulled away from the feeding roller 4 by using the tension of the wire card clothing. After the tension adjustment roller 5 is positioned at the reference position when the tension of the wire card clothing is balanced, the winding motor is increased or decelerated according to the distance from the reference position to keep the tension adjustment roller 5 at the reference position. In addition, the pressure of the actuator 7, that is, the air cylinder is changed according to the winding diameter of the winding beam 6 to change the pressing force on the tension adjustment roller 5 to obtain a predetermined winding tension.

The details of the arrangement of the reed 2 and various rolls are that the downstream side of the reed 2 (the right side in the figure) has a nip roll 3, and the downstream side of the nip roll 3 is provided with a feed roll 4. A tension adjustment roller 5 is provided on the downstream side, and a take-up beam 6 is arranged below the downstream side of the feed roller 4 .

The structure in which the feed roller 4 can be swingably arranged is roughly such a structure that the telescopic motion of the actuator 7 is changed into the swing motion of the lever 9, and the swing end of the lever 9 is provided with the feed roller 4. Specifically, the central part of the L-shaped lever 9 is connected to the frame (not shown) with a pin on the side of the feed roller 4, and one piece of the lever 9 is extended downstream, and the other piece is made downward. Extend, connect the base end of the actuator 7 arranged below the feed roller 4 to the frame with a pin, connect the front end of the other piece of the lever 9 to the front end of the actuator 7 with a pin, and connect the tension adjustment roller 5 It is rotatably supported by the front end of one piece of the lever 9 .

The actuator 7 is a cylinder, and the connecting piece 10 protrudes from the cylinder head H and the front end of the piston rod R respectively, forming the base end and the front end of the actuator 7 .

As shown in FIG. 6 , the take-up tension control device 8 includes an actuator control mechanism 11 that controls the thrust of the actuator 7 and a position control mechanism 12 that corrects the position of the moved tension adjustment roller 5 .

The actuator control mechanism 11, since the tension direction of the wire card clothing 1 on the side of the take-up beam hanging on the tension adjustment roller 5 changes with the increase of the winding diameter, it is necessary to change the tension correspondingly. Control of the pushing force of the adjustment roller 5 on the wire card clothing. Specifically, the control is carried out in the following way, and the prescribed functional formula (constant tension winding and tapered tension winding) is input into the tension setting device 13. The prescribed functional formula will be suitable for the type of thread and the winding method. The tension value of (constant tension coiling and tapered tension coiling) is taken as the vertical axis and the coil diameter as the horizontal axis. The rotational speed of the feed roller 4 suitable for the type of thread is input into the thread speed setter 14 of the speed control device. After the feed roller speed controller 15 of the speed control device receives the signal sent by the line speed setter 14, the feed roller 4 is rotated at a prescribed speed. The coil diameter detector 16, after receiving the rotation speed signal sent by the feed roller speed controller 15 and the rotation speed signal of the coil beam 6 sent by the encoder E, calculates the coil diameter of the coil beam 6. The tension calculator 17, after receiving the tension signal from the tension setter 13 and the winding diameter signal from the winding diameter detector 16, calculates the tension of the wire card clothing corresponding to the winding diameter. The pushing force calculator 18, after receiving the tension signal of the wire card clothing from the tension calculator 17 and the roll diameter signal from the roll diameter detector 16, calculates the pushing force corresponding to the tension change of the wire card clothing. The tension of the card clothing changes with the increase of coil diameter. To give a numerical example, the following results are calculated: Assuming that the tension of the wire card clothing is 60kg, if the roll diameter is φ500mm, the pushing force is 90kg, and if the roll diameter is φ200mm, the pushing force is 100kg. The electropneumatic converter 19, after receiving the pushing force signal from the pushing force calculator 18, converts the pushing force into air pressure, and supplies air to the cylinder 7 from the pressure air source 20. The winding diameter detector may also be such a device, that is, an optical distance meter or the like is arranged at a predetermined position to measure the distance from the surface of the winding beam 6 or to the wire clothing 1 near the winding beam 6, A device for finding the coil diameter.

The position control mechanism 12 detects the position of the tension adjustment roller 5 through the position detection mechanism 21. According to the detection result, it is judged whether the tension adjustment roller 5 is at the reference position. If it is at the reference position, the feed roller 4 and the winding beam 6 are kept If the rotation speed is away from the reference position, then change the rotation speed of the take-up beam 6 to move the tension adjustment roller 5 to the reference position.

The position detection mechanism 21 is a mechanism for accurately grasping the fine movement of the tension adjustment roller 5 , that is, the minute swing amount, and converts the slight movement amount into a fluctuation amount of the rotation angle. Specifically, as shown in Figures 1 and 2, the upper end of the arm 23 is connected to the support pin 22 protruding from the frame, and a connecting rod 24 is erected between the lower end of the arm 23 and the middle part of the other piece of the lever 9, The rotation angle of the arm 23 is detected by the position sensor 25 .

The reference position of the tension adjustment roller 5 is input to the control position setter 26 . The adder 27 calculates the difference between the signal from the position sensor 25 and the reference position signal from the control position setter 26 . The result of this calculation is the direction and amount to return the tension adjustment roller 5 to the reference position. The speed controller 28 of the coiling motor controls the rotational speed of the coiling beam 6 according to the feedback signal sent by the encoder E, and changes the rotational speed of the coiling motor M according to the actual rotational speed and the output signal of the adder 27, so that the tension adjustment roller 5 returns to base position.

The above-mentioned Example 1 was used in the following manner. First, when the winding operation is started, the winding beam 6 is rotated at a speed slightly faster than the peripheral speed of the feed roller 4 . Thus, the tension of the wire card clothing 1 gradually increases, and after the force of the tension adjustment roller 5 and the received actuator 7 is balanced, the tension adjustment roller 5 will naturally leave the feed roller 4 . Use the position sensor 25 to grasp the situation that the tension adjustment roller 5 moves to the reference position, then switch to the coiling tension control operation, and control the speed of the coiling beam 6 through the position control mechanism 12, while using the actuator control mechanism 11 to control the operation The air pressure of the device 7 is used to control the pushing force of the wire card clothing 1 with the tension adjustment roller 5. The resultant force of the wire clothing tension on the feed roller side and the wire clothing tension on the take-up beam side acts on the tension adjustment roller 5 , and the resultant force is balanced by the pushing force of the lever 9 and the actuator 7 .

When the operation stopped, the feeding roller 4 remained in the braking state because the brake worked. In addition, the tension of the wire card clothing is maintained by maintaining the rotational force of the winding motor M and the pressing force of the actuator 7 . When the wire card clothing 1 is cut, the rotational force of the winding motor M is released. Then, the traction of the winding beam 6 is released, the tension of the wire card clothing 1 is eliminated, the tension adjustment roller 5 moves to the feed roller 4 due to the pushing force of the actuator 7, and the wire card clothing 1 is adjusted by the feed roller 4 and the tension. Clamping by roller 5 prevents slack in the wire clothing upstream of the clamping position. Then, the wire clothing 1 is cut between the tension adjustment roller 5 and the winding beam 6 .

The operation of winding the end of the wire card clothing onto the take-up beam 6 is carried out by rotating the feed roller 4 and pulling the wire while the wire clothing 1 is clamped between the feed roller 4 and the tension adjustment roller 5 . Clothing 1 is delivered.

Embodiment 2 of the wire card clothing coiling machine of the present invention is shown in FIG. 3 , which is characterized in that the linear reciprocating motion of the actuator 7 is directly used for the forward and backward motion of the tension adjustment roller 5 . Specifically, the base portion of the actuator 7 is fixed to the frame, and the tension adjustment roller 5 is rotatably supported on the connecting piece 10 provided on the front end portion of the piston rod R. As shown in FIG. In the position detection mechanism 21 , an L-shaped bracket 29 is fixed to the actuator 7 in order to detect the amount of reciprocation of the piston rod R, and a pair of position sensors 25 are attached to both the bracket 29 and the piston rod R.

Embodiment 3 of the wire card clothing coiling machine of the present invention is shown in Fig. 4, which is characterized in that the tension adjusting roller 5 is arranged to move up and down and forward and backward. Specifically, in addition to the actuator 7 that can move the tension adjustment roller 5 up and down to press the wire card clothing, there is also an actuator 7 that moves the tension adjustment roller 5 back and forth to contact or separate from the feed roller 4 . The movement of is used as actuator 31. The connecting piece 10 that is used as the base end of the actuator 31 is connected to the frame with a pin, and the connecting piece 10 at the lower end of the actuator 7 is connected to the frame with a pin, and the front end of the piston rod R that is used as the actuator 31 is moved. Connect with the piston rod cover side of actuator 7 with bracket 29. When clamping the wire card clothing 1 when the winding is stopped, the moving actuator 31 is operated. In order to prevent the wire clothing from slack in the upstream of the feed roller 4, the movement of the moving actuator 31 is the best. This is performed after releasing the rotational force of the winding motor and before releasing the tension of the wire card clothing 1 .

Embodiment 4 of the wire card clothing winding machine of the present invention is shown in FIG. 5 , which is characterized in that the guide roller 32 is arranged on the downstream side of the tension adjustment roller 5 in an isolated manner. In this way, the advancing direction of the wire card clothing 1 separated from the tension adjustment roller 5 is kept constant. Therefore, the winding tension is determined only by the pushing force of the actuator 7. When winding with a certain winding tension, it is sufficient to keep the pushing force of the actuator 7 constant, and there is no need to detect the winding diameter.

According to the technical solution 1 of the present invention, since the tension adjustment roller is separated from the feed roller during the coiling operation, the pushing force of the actuator can be correctly applied to the tension adjustment roller, and as a result, the tension control can be accurately performed. Tension control is to set the pushing force of the actuator to a specified value, and only control the speed of at least one of the feed roller and the take-up beam, so that the tension adjustment roller is always at the reference position, so it is easy to adjust the take-up tension. control. If the wire card clothing is clamped between the tension adjustment roller and the feed roller, the wire card clothing can be prevented from loosening when the operation stops.

In technical solution 2 of the present invention, since there is no guide roller, the cost can be reduced, and the operator standing in front of the take-up beam can easily operate the reed behind the feed roller. In addition, when feeding out the end of the wire card clothing for winding on the take-up beam, the wire card wire leaving the tension adjustment roller hangs down directly and faces downward without disordering the arrangement, so the winding operation is easier than before. In addition, since the pressing force can be changed while grasping the increase of the winding diameter, the predetermined tension can be accurately applied to the wire card clothing. Therefore, not only the constant tension control but also the control of changing the tension with the increase of the winding diameter, which is increased by tapered tension control etc. Tension control.

According to technical solution 3 of the present invention, if the moving actuator is driven, the wire card clothing can be clamped between the feed roller and the tension adjustment roller, so it is easy to control when performing the clamping operation, and it is possible to reliably prevent winding. Slack in the wire card clothing occurs when the feeding stops.

The technical solution 4 of the present invention does not require a special actuator for moving the tension adjustment roller, which reduces costs and saves space.

According to the technical solution 5 of the present invention, when the tension of the wire card clothing is balanced with the pushing force of the actuator, and the tension adjustment roller is away from the feeding roller, when the tension of the wire card clothing is relatively reduced, the tension is adjusted by the pushing force. The roller moves towards the feed roller, which automatically clamps the wire clothing. When the tension adjustment roller moves after the rotation force of the winding motor is released, a pushing force proportional to the set winding tension is generated against the feed roller, and the tension of the wire card clothing upstream of the feed roller can be obtained. Compensating clamping force. In addition, in the case of increasing the pressing force of the actuator to move, when the rotational force of the subsequent winding motor is released due to the cutting of the wire card clothing, there is a greater pressure on the feed roller than in the previous case. Pushing force, enough clamping force can be obtained. Therefore, even if the winding tension is high when clamping the wire clothing while the operation is stopped, a clamping force corresponding to the high winding tension can be obtained, and the wire clothing upstream of the feed roller can be reliably prevented from slack.

Claims (5)

1. a thread card clothing take-up machine comprises feeding roller (4), batches beam (6), and the Coiling Tension Control device (8) of adjusting the coiling tension of line card clothing (1), it is characterized in that:

Also possess be arranged on described feeding roller (4) movably and describedly batch between the beam (6), with described feeding roller (4) contact or the tension adjustment roller (5) that separates, and be connected this tension adjustment roller (5) and go up, make thrust pressure towards described line card clothing (1) to act on actuator (7) on the described tension adjustment roller (5)

Described Coiling Tension Control device (8) comprises following a few part: actuator control mechanism (11), the action of described actuator (7) is controlled, and adjust the thrust pressure of described tension adjustment roller (5) to line card clothing (1); Position control mechanism (12) is controlled described feeding roller (4) and the described rotating speed that batches at least one side in the beam (6), and described tension adjustment roller (5) is remained on the reference position,

When batching running, leave at described tension adjustment roller (5) under the state of described feeding roller (4) and apply thrust pressure to described line card clothing (1) by described actuator (7), batching when stopping, at least when cutting off described line card clothing (1), described line card clothing (1) is clamped between described feeding roller and the described tension adjustment roller (5).

2. thread card clothing take-up machine according to claim 1, it is characterized in that, directly the line card clothing (1) from tension adjustment roller (5) is batched with batching beam (6), actuator control mechanism (11) is controlled accordingly with the coil diameter testing result of batching beam (6).

3. thread card clothing take-up machine according to claim 1 and 2 is characterized in that, except actuator (7), also is provided with the mobile actuator (31) of using that tension adjustment roller (5) is moved to feeding roller (4).

4. thread card clothing take-up machine according to claim 1 and 2 is characterized in that, actuator (7) is a device that has following two kinds of effects concurrently, promptly pushes line card clothing (1), it is applied the effect of tension force; The effect that tension adjustment roller (5) is moved to feeding roller (4).

5. line card clothing batch up gear according to claim 4 is characterized in that, actuator (7) is a direction towards feeding roller (4) with the direction of tension adjustment roller (5) pushing line card clothing (1).

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