CN214455810U - Spindle tension control device - Google Patents

Abstract

The utility model provides a motor-driven spindle tension control device, include: the core shaft is arranged on the first supporting mechanism, the swing arm is arranged on the second supporting mechanism, one end of the swing arm is connected with the swing roller, the other end of the swing arm is provided with a rotating center hole or a rotating center shaft, and the power output end of the motor is connected with the rotating center hole or the rotating center shaft of the swing arm to be arranged and moves synchronously. The utility model discloses mainly be through setting up the structure position relation of creating new-type torque motor and swing arm, dabber, rethread control motor moment of torsion size and then realize that accurate control applies to the tension size of threadlike material, but have accurate adjustment tension size, advantages such as stability height when long-term the use.

Description

Spindle tension control device

Technical Field

The utility model relates to a spindle tension control device adopting a motor as a tension power source. Particularly, the utility model relates to an utilize torque motor or servo motor accurate control to exert the tension size on the linear material to ensure that under the operating parameter of difference, the linear material is in the in-process of unwrapping wire, and the tension that exerts to the linear material all remains invariable basically.

Background

The threadlike material may be natural fiber, synthetic fiber or metal wire, and the like, and the common materials include cotton, rayon, polyamide, polyester, aramid, steel wire, and the like. In the tire industry, or in the textile industry, or in the cable industry, it is generally necessary to draw one or more wire-like materials wound into a package from a spool to a predetermined station for subsequent operations under the traction of an external power source (e.g., an electric motor). The spindle tension control device is required to provide a constant and uniform tension to the thread material as it is being drawn from the spool, and the tension applied to the thread material needs to be maintained substantially constant under different operating parameters, such as when the weight of the thread material wound on the spool and the diameter of the reel decrease due to continued consumption of the thread material, and/or when the draw-off speed changes. In particular, when a plurality of spindle tension control devices are used to simultaneously draw out a plurality of thread-like materials, it is necessary to ensure that the tensions applied to the respective thread-like materials by all the spindle tension control devices are kept substantially constant and substantially uniform, i.e., the tensions applied to the respective thread-like materials are highly uniform.

However, the applicant has found through research that the most widely used spindle tension control device on the market currently controls the tension applied to the thread material by using a cylinder to perform pressurization or depressurization, and the method has at least the following three disadvantages:

firstly, the tension control mode of the cylinder is realized by controlling the air pressure in the cylinder, but the pressure in the cylinder is controlled by manually operating a manual knob to adjust the air pressure, and the manual adjustment of pressure supply is unstable, so that the provided tension is inaccurate; in addition, when a large number of tension control devices (such as spindle supports) are used at the same time, manual adjustment of the air pressure is very inconvenient, and the labor consumption is long.

After the cylinder is used for a long time, an air supply pipeline and a cylinder body of the cylinder are easily abraded, so that pressure supply is unstable, and the provided tension is inaccurate.

Third, in the industrial production, since a plurality of spindle tension control devices are used to simultaneously draw out a plurality of strands of linear materials, it is necessary to ensure that the tensions applied to the respective linear materials are substantially uniform and constant, but it is difficult to ensure that the tensions applied to the respective linear materials are substantially uniform and constant by controlling the tensions with the air cylinders because of the above-mentioned two disadvantages, and particularly, the tension stability and uniformity are not good after long-term use.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a motor-driven spindle tension control device, include: the core shaft is arranged on the first supporting mechanism, the swing arm is arranged on the second supporting mechanism, one end of the swing arm is connected with the swing roller, the other end of the swing arm is provided with a rotating center hole or a rotating center shaft, and the power output end of the motor is connected with the rotating center hole or the rotating center shaft of the swing arm to be arranged and moves synchronously.

Preferably, the power output end of the motor and the rotating center hole or the rotating center shaft of the swing arm are connected through a synchronous belt assembly and move synchronously.

Preferably, the power output end of the motor and the rotating central hole or the rotating central shaft of the swing arm are connected through a mutually meshed gear mechanism and move synchronously.

Preferably, the synchronous belt assembly comprises a driving wheel and a driven wheel, and the driven wheel is provided with a rotation center shaft or a rotation center hole matched with the rotation center hole or the rotation center shaft of the swing arm.

Preferably, the gear ratio of the driving wheel to the driven wheel is 1:1 to 1:20, respectively.

Preferably, the mutually meshed gear mechanism is a gear and a rack assembly coupled with the gear, and the power output end of the motor is connected with the rotating central hole or the rotating central shaft of the swing arm through the gear and the rack assembly coupled with the gear and moves synchronously.

Preferably, the rack assembly comprises a rack and a rack swing arm, the rack is fixedly arranged at one end of the rack swing arm, and the other end of the rack swing arm is provided with a rotation center shaft or a rotation center hole matched with the rotation center hole or the rotation center shaft of the swing arm.

Preferably, the rack assembly comprises a rack and a connecting rod structure, the rack is fixedly arranged at one end of the connecting rod structure, and the other end of the connecting rod structure is directly arranged on the swing arm and moves synchronously with the swing arm.

Preferably, the rack assembly comprises a rack and a link structure, the rack is fixedly arranged at one end of the link structure, and the other end of the link structure is indirectly arranged on the swing arm and moves synchronously with the swing arm.

Preferably, a linear speed detection sensor for detecting the paying-off speed of the linear material and/or a rotational speed detection sensor for detecting the rotational speed of the material roll of the linear material may be provided.

To sum up, the utility model discloses a spindle tension control device mainly creates new-type torque motor and swing arm, the structural position relation of dabber through the setting, rethread control motor moment of torsion size and then realize that accurate control applies the tension size to linear material, this technical scheme has tension output degree of accuracy and precision height, but accurate adjustment tension size and adjustment mode are convenient, stability is high when long-term the use, especially when using a plurality of spindle tension control device to pull out strand of line material simultaneously, even though each spindle tension control device's tension uniformity advantage such as higher after long-term the use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is an overall schematic view of a first embodiment of the present invention.

Fig. 2 is a partial schematic view of a first embodiment of the present invention.

Fig. 3 is an overall schematic view of a second embodiment of the present invention.

Fig. 4 is a partial schematic view of a second embodiment of the present invention.

Fig. 5 is a partial schematic view of a third embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the ordinary skilled person in the art without creative work all belong to the protection scope of the present invention.

The specific structure and the working principle of the spindle tension control device disclosed in the present invention are described in detail by the following three embodiments, and it should be noted that the same components and parts and the same structure are only represented by the same reference numerals.

A first embodiment, as shown in fig. 1 to 2, provides a spindle tension control device 1, which includes: motor 63, swing roller 2, swing arm 3, dabber 4, first supporting mechanism 50 and second supporting mechanism 51, motor 63 is provided with power take off 61, dabber 4 sets up on first supporting mechanism 50, swing arm 3 sets up on second supporting mechanism 51, the one end 31 and the swing roller 2 of swing arm 3 are connected and are set up, the other end 32 of swing arm 3 is provided with rotatory centre bore or rotatory center pin 321, the power take off 61 of motor with the rotatory centre bore of swing arm 3 or rotatory center pin are connected and are set up and synchronous motion. Wherein the motor is preferably a servo motor or a torque motor.

The power take off end 61 of motor with swing arm 3's rotatory centre bore or rotatory center pin are connected through the hold-in range subassembly and are set up and synchronous motion. Specifically, the timing belt assembly includes a drive pulley 651, a driven pulley 652 provided with a rotation center shaft or a rotation center hole 6521 that is matched with a rotation center hole or a rotation center shaft of the swing arm 3, and a timing belt 653. The gear ratio of the driving wheel 651 to the driven wheel is preferably 1:1 to 1:20, respectively.

The spindle tension control device 1 of the utility model is fixedly arranged at a preset position through a fixing plate 7; the mandrel 4 is supported and fixedly arranged on the fixing plate 7 through a first supporting mechanism 50; the motor 63 is supported by a side plate 66 and is fixedly arranged with the fixed plate 7; the second supporting mechanism 51 for supporting the swing arm 3 may be provided independently or integrally with the first supporting mechanism 50, and the swing arm 3 may drive the swing roller 2 to swing synchronously around a central rotation hole or a central rotation axis thereof.

The utility model discloses a core structure and principle concrete description are as follows, motor 63's power take off end 61 with action wheel 651 fixed connection, and then through hold-in range 653, follow driving wheel 652 and set up in rotatory centre bore or the center of rotation 6521 from driving wheel with the rotatory centre bore or the center of rotation axle of swing arm 3 are connected and are set up and synchronous motion, only use in this embodiment in the picture from driving wheel set up the center of rotation 6521 swing arm 3 sets up rotatory centre bore 321 for the example explains, will in order to realize power take off end 61 with swing arm 3 is connected and sets up and synchronous motion, is about to swing arm 3 with power take off end 61 is connected and is set up and synchronous motion, also be about to with swing roller 2 that swing arm 3 is connected with power take off end 61 connects and sets up and synchronous motion.

The working principle of the present invention is that firstly, a linear material (such as a steel wire or a nylon wire, hereinafter, the steel wire is described as an example) wound on a bobbin (not shown) is loaded onto the mandrel 4 through the bobbin, the steel wire head of the steel wire is connected with an external power source (not shown), and the steel wire is wound on the oscillating roller 2 according to the use requirement; when the steel wire is paid off under the constant traction of an external power source, the power output end 61 is connected with the swing roller 2 and moves synchronously, so that the force applied to the swing roller 2 can be adjusted by adjusting the force of the power output end 61 of the motor, the force on the swing roller 2 is the reaction force of the traction force applied to the swing roller 2 by the external power source, and the tension applied to the steel wire or the nylon wire can be accurately adjusted by the swing roller 2 by adjusting the force of the power output end 61 of the motor. Because the force output by the motor can be digitally controlled, the control accuracy and precision of the tension applied to the steel wire or the nylon wire are higher, and the tension can be accurately adjusted; the motor has the advantages of stability, reliability, long service life, lasting and stable tension and the like, so that the integral tension consistency and stability are particularly obvious when the spindle frame with the spindle tension control device is used for simultaneously pulling out a plurality of steel wires in the production operation in the industrial production, and the winding effect of the steel wires to the target object is better.

The utility model discloses well second embodiment, third embodiment are similar with the core structure and the principle of first embodiment, and the difference lies in power take off 61 with swing arm 3's rotatory centre bore or rotation center axle are connected through intermeshing's gear mechanism and set up and synchronous motion. Specifically, the mutually meshed gear mechanism is a gear 671 and a rack assembly coupled with the gear, and the power output end and the rotating central hole or the rotating central shaft of the swing arm are connected through the gear and the rack assembly coupled with the gear and move synchronously.

A second embodiment, as shown in figures 3 to 4. The spindle tension control device 1 of the embodiment is fixedly arranged at a preset position through a fixing plate 7; the mandrel 4 is supported by a first supporting mechanism 50 and is fixedly arranged on the fixing plate 7 through a side plate 80; the motor 63 is arranged in the side plate 80 and is fixedly arranged with the fixed plate 7 through the side plate 80; the second supporting mechanism 51 for supporting the swing arm 3 may be provided independently or integrally with the first supporting mechanism 50, and the swing arm 3 may drive the swing roller 2 to swing synchronously around a central rotation hole or a central rotation shaft 321 thereon.

In the present embodiment, the rack assembly includes a rack gear 672 and a rack swing arm 673, the rack gear 672 is fixedly disposed on one end 6731 of the rack swing arm, the other end 6732 of the rack swing arm is provided with a rotation center shaft 6733 disposed to match with the rotation center hole of the swing arm 3, and the present embodiment is illustrated by only providing the other end 6732 of the rack swing arm with the rotation center shaft 6733 and providing the swing arm 3 with the rotation center hole 321. The specific description is as follows: the power output end 61 is fixedly connected with the gear 671 and synchronously rotates, the rack 672 is coupled with the gear 671 and synchronously moves, so that the power output end 61 and the swing arm 3 are connected and synchronously move through the gear 671, the rack 672, and a rotating central shaft 6733 arranged at the other end 6732 of the rack swing arm and a rotating central shaft 321 of the swing arm 3, namely the swing roller 2 connected with the swing arm 3 is connected with the power output end 61 and synchronously moves. The technical solution of this embodiment has the technical effects described in the first embodiment completely, and improves the technical solution of using the synchronous belt assembly, in the first embodiment, if the gear ratio of the driving wheel to the driven wheel is 1:20, the diameter of the driven wheel is large, the driven wheel occupies a large space, and is inconvenient to use and not beneficial to industrial use.

A third embodiment is shown in figures 3 to 5. The spindle tension control device 1 of the embodiment is fixedly arranged at a preset position through a fixing plate 7; the mandrel 4 is supported by a first supporting mechanism 50 and is fixedly arranged on the fixing plate 7 through a side plate 80; the motor 63 is arranged in the side plate 80 and is fixedly arranged with the fixed plate 7 through the side plate 80; the second supporting mechanism 51 for supporting the swing arm 3 may be provided independently or integrally with the first supporting mechanism 50, and the swing arm 3 may drive the swing roller 2 to swing synchronously around a central rotation hole or a central rotation shaft 321 thereon.

In the present embodiment, the rack assembly includes a rack gear 672 and a link structure 674, the rack gear 672 is fixedly disposed at one end 6741 of the link structure, and the other end 6742 of the link structure is directly or indirectly disposed on the swing arm 3 and moves synchronously with the swing arm 3 around the rotation center hole 321 of the swing arm 3. The core structure and principle of this embodiment are similar to those of the second embodiment, except that the rack swing arm 673 is replaced by a link structure 674 directly or indirectly arranged on the swing arm 3, so as to reduce the manufacturing cost of the spindle tension control device, and meanwhile, the transmission loss of force can be reduced, and the accuracy and stability of the tension applied to the steel wire can be further improved.

The spindle tension control device 1 of the present embodiment may further be provided with a rotation speed detection sensor for detecting the rotation speed of the material roll of the linear material, and provide a constant pay-off tension by controlling the output of the motor to match the rotation speed of the material roll.

The spindle tension control device 1 of the present embodiment may further be provided with a linear speed detection sensor for detecting the paying-off speed of the linear material, and provide a constant paying-off tension by controlling the output of the motor to match the paying-off speed of the linear material.

The utility model discloses can be right each tension of spindle tension control device's spindle frame is adjusted alone or selective regulation or whole adjustment, has easy operation's a bit.

Tables 1 and 2 show experimental data of the applicant respectively testing tension fluctuation applied to a steel wire (metal material) and a nylon wire (synthetic fiber material) under the same conditions and under four common winding and paying-off conditions of paying-off speed (unit: mm/s) of a motor for applying a paying-off traction force of 100 mm/s, 200 mm/s, 300 mm/s and 400 mm/s, respectively, and can be seen by comparing the experimental data: the tension floating amount of the steel wire and the tension floating amount of the nylon wire of the spindle tension control device of the utility model are both 0.1 nm; the tension floating amount of a steel wire and the tension floating amount of a nylon wire of the conventional pneumatic tension control device are both 0.4-0.5 nm. That is to say, spindle tension control device exerts the tension stability on steel wire or nylon wire than pneumatic type tension control device's stability is high, and because solitary spindle tension control device's stability is high, is using by a plurality of the utility model spindle carrier that spindle tension control device constitutes carries out stranded steel wire or nylon wire winding, the tensile whole uniformity of applying to each steel wire or nylon wire is inevitable higher.

TABLE 1

TABLE 2

Tables 3 and 4 show experimental data of the applicant setting the tension applied to the steel wire to 4 nm and setting the tension applied to the nylon wire to 10 nm under different pay-off speed conditions using the spindle tension control device and the control method thereof according to the present invention. Through comparison of experimental data, even if the paying-off speed is different, the tension value applied to the steel wire or the nylon wire can be accurately set; when the diameter of the material roll is changed, the tension value applied to the steel wire or the nylon wire can be accurately set. Therefore, adopt spindle tension control device accessible control motor output power's size and then realize that accurate control applies the tension size of strand steel wire or nylon wire at most, if adopt the spindle frame, can carry out the adjustment of whole unity or have corresponding the adjustment to the tension of strand steel wire or nylon wire equally.

TABLE 3

TABLE 4

Furthermore, because the utility model discloses a utilize motor control output tension, the stability of motor is than pneumatic height, and life is also than pneumatic long, consequently no matter is exclusive use or use simultaneously a plurality ofly spindle tension control device, stability is all higher when long-term the use.

It can be known from the above disclosure that the spindle tension control device disclosed in the present invention mainly creates the new-type structure and position relationship between the motor and the swing arm and the spindle by setting up, and then realizes the tension applied to the thread material by the accurate control by controlling the power output of the motor, and has the technical effects of high tension output precision, accurate adjustment of the tension, high stability in long-term use, and especially when a plurality of spindle tension control devices pull out a plurality of thread materials simultaneously, even after long-term use, the tension consistency of each spindle tension control device is high.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A spindle tension control device comprising: motor, swing roller, swing arm, dabber, first supporting mechanism and second supporting mechanism, the dabber sets up on first supporting mechanism, the swing arm sets up on second supporting mechanism, the one end and the swing roller of swing arm are connected and are set up, the other end of swing arm is provided with rotatory centre bore or rotatory center pin, its characterized in that: and the power output end of the motor is connected with the rotating center hole or the rotating center shaft of the swing arm and moves synchronously.

2. Spindle tension control device according to claim 1, characterized in that the power output end of the motor is connected with the rotation center hole or the rotation center shaft of the swing arm through a timing belt assembly and moves synchronously.

3. Spindle tension control device according to claim 1, characterized in that the power output of the motor is connected to the central hole of rotation or the central shaft of rotation of the oscillating arm by means of a gear mechanism engaging with each other and moving synchronously.

4. Spindle tension control device according to claim 2, characterized in that the synchronization belt assembly comprises a driving wheel and a driven wheel, the driven wheel being provided with a central axis of rotation or a central axis of rotation arranged to match the central axis of rotation or the central axis of rotation of the oscillating arm.

5. Spindle tension control device according to claim 4, characterized in that the gear ratio of the driving wheel to the driven wheel is 1:1 to 1:20, respectively.

6. Spindle tension control device according to claim 3, characterized in that the intermeshing gear mechanism is a gear and a rack assembly coupled to the gear, and the power output end of the motor is connected to the rotating center hole or the rotating center shaft of the swing arm through the gear and the rack assembly coupled to the gear and moves synchronously.

7. The spindle tension control device as claimed in claim 6, wherein the rack assembly comprises a rack and a rack swing arm, the rack is fixedly arranged at one end of the rack swing arm, and the other end of the rack swing arm is provided with a rotation center shaft or a rotation center hole matched with the rotation center hole or the rotation center shaft of the swing arm.

8. Spindle tension control device according to claim 6, characterized in that the rack assembly comprises a rack, a link structure, the rack being fixedly arranged at one end of the link structure, the other end of the link structure being directly arranged on the swing arm and moving synchronously with the swing arm.

9. Spindle tension control device according to claim 6, characterized in that the rack assembly comprises a rack, a link structure, the rack being fixedly arranged at one end of the link structure, the other end of the link structure being indirectly arranged on the swing arm and moving synchronously with the swing arm.

10. Spindle tension control device according to one of claims 1 to 9, characterized in that a linear speed detection sensor for detecting the unwinding speed of the thread-like material and/or a rotational speed detection sensor for detecting the rotational speed of the reel of thread-like material are provided.

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