CN207253680U - A kind of racket threader - Google Patents

Abstract

A kind of racket threader, including base are the utility model is related to, the holding device of racket of described base one end is installed on can rotating horizontally by bearing, and be fixedly mounted on the tension-adjusting gear of the base other end.The utility model the utility model adjusts tension force by the distance of Hall switch sensing pull wire head movement, avoids poundage wild effect present in spring tension system so that the performance of racket can be played perfectly.

Description

A kind of racket threader

Technical field

It the utility model is related to a kind of threading machinery, especially a kind of racket threader.

Background technology

Racket threader, is the machine to racket threadings such as tennis racket, racket, wall ball rackets also known as " racket drawing machine " Device.By taking racket as an example, it is initially threaded with hand, pure to have been manually done, and there are problems with：One is threading time length, separately Outer one is that the line poundage worn is uneven, does not wear the line of high poundage.The braiding machine to grow up after the nineties applies to plumage Ball top threads, and solves the problems, such as time and poundage, for example, the tension system application lever principle of weight threader, passes through adjusting Weight on bar adjusts poundage.Although such tension system poundage is accurate, weight will be made by requiring to thread each time It is horizontal positioned, certain error otherwise will be produced, this causes the threading speed of weight machine to be limited all the time.Hand-rail type threader uses bullet Spring tension system, value of thrust is weighed by the deformation quantity of spring, locks head after reaching value of thrust, such design is significantly The speed of threading is accelerated, and the price of hand-rail type threader can't how much higher than weight machine, thus also have at present very much Place is still using this hand-rail type threader.Although hand-rail type threader accelerates the speed of threading, but by spring Lai The threading poundage of measurement, since spring is easy to deform or there are elastic fatigue, causes threading poundage unstable, influences The use of racket.

Utility model content

In view of the above-mentioned problems, the utility model provides a kind of fast automatic threading, and thread the racket of poundage accurate stable Threader.

To solve this technical problem, the utility model takes following scheme：

A kind of racket threader, including base, the racket of described base one end is installed on by bearing in which can rotate horizontally Clamping device, and be fixedly mounted on the tension-adjusting gear of the base other end, the holding device of racket include with The swivel base that the bearing is connected, is axially arranged with two columns on the swivel base, the column top is consolidated along the base Surely there is supporting block, the supporting block both sides of the face are equipped with open slot, a connecting rod is hinged in the open slot, and the connecting rod connects Connect clamping jaw, the swivel base between described two columns is equipped with elongated kerve, and line-pressing machine is slidably connected on the kerve Structure, the end face center of the supporting block offside open up elongated guide groove, and L-shaped pushing block is slidably mounted on the guide groove On, threading claw is installed on the pushing block；

The tension-adjusting gear includes console, is fixed on the controller of the console side, and is installed on Motor and multiple Hall switch inside the console, the console are equipped with the first guide-track groove of hollow out, the guide rail The console below groove is internally provided with the first screw, and be slidably connected a pull wire head on first screw；The motor connects The second screw is connected to, described second screw one end connects one end of nearly " L " shape connecting plate by nut, and the nut both ends are equal Equipped with the connecting plate, the other end of the connecting plate connects "T"-shaped part, is connected by T " the shapes part with the pull wire head, Magnet is installed on the "T"-shaped part；The Hall switch is fixedly mounted on the cross bar inside console, the cross bar with The pull wire head is slidably connected；

Start motor, drive connecting plate to be moved axially along the second screw by the second screw, the connecting plate other end is connected Magnet on "T"-shaped part and the pull wire head being connected with "T"-shaped part correspondingly move, and the Hall switch on cross bar senses magnetic After body is moved to calibration position, stop motor driving, and then realize the distance moved by Hall switch sensing pull wire head to adjust Save tension force.

Further, the thread depressing mechanism includes strut, the strut bottom be slidably connected with the kerve, it is described Strut top is rotatablely connected live conductor pawl.

Further, the threading claw is 5 tooth claws.

Further, connecting plate described in the tension-adjusting gear is connected through the console with the "T"-shaped part, The console at corresponding connecting plate is equipped with the second guide-track groove, and second guide-track groove is set along the first guide-track groove direction Put.

Further, the pull wire head bottom is equipped with an elastic component, to protect the Hall switch.

Further, the elastic component is spring or shrapnel.

By using preceding solution, the utility model the utility model is moved by Hall switch sensing pull wire head Distance adjusts tension force, avoids poundage wild effect present in spring tension system so that the performance of racket can obtain Played to perfect.

Brief description of the drawings

Fig. 1 is the side view for the racket threader that the utility model embodiment 1 provides；

Fig. 2 is the top view for the racket threader that the utility model embodiment 1 provides；

Fig. 3 is the racket threader that the utility model embodiment 1 provides along sectional view along AA.

Embodiment

Technical solutions of the utility model are further elaborated with reference to the accompanying drawings and examples, present embodiment can have Different form and it is not understood as limited to explanation set forth herein.Identical reference numeral represents identical all the time in text Element, similar reference numeral represent similar element.

Embodiment 1：

With reference to figure 1, Fig. 2 and Fig. 3, racket threader includes base 1, is installed on can rotating horizontally by bearing 2 described The holding device of racket 3 of 1 one end of base, and it is fixedly mounted on the tension-adjusting gear 4 of 1 other end of base.

The holding device of racket 3 includes the swivel base 31 that is connected with the bearing 2, along the bottom on the swivel base 31 Seat 1 is axially and symmetrically equipped with two columns 32,41, and the column 32,41 tops are all fixed with supporting block 33,33 liang of the supporting block Side end face is equipped with open slot (not shown), and a connecting rod 34 is hinged in the open slot, and the connecting rod 34 connects clamping jaw 35, the swivel base 31 between described two columns 32,41 is equipped with elongated kerve 36, is slidably connected on the kerve 36 Thread depressing mechanism 37, the end face center of 33 offside of supporting block open up elongated guide groove 38, and L-shaped pushing block 39 is slidably installed Claw 40 is threaded on the guide groove 38, being provided with the pushing block 39；The threading claw 40 is 5 tooth claws.

The thread depressing mechanism 37 includes strut 371,371 bottom of strut be slidably connected with the kerve 36, institute State 371 top of strut rotation connection live conductor pawl 372.

The tension-adjusting gear 4 includes console 42, is fixed on the controller 43 of 42 side of console, and Motor 44 and 3 Hall switch 45 inside the console 42, the console 43 are equipped with first leading for hollow out Track slot 46, the console 43 of the lower section of first guide-track groove 46 are internally provided with the first screw 47, on first screw 47 Be slidably connected a pull wire head 48, and 48 afterbody of pull wire head connects "T"-shaped part 49, and magnet 91 is installed on the "T"-shaped part 49. The motor 44 is connected with the second screw 50, and described second screw, 50 one end connects nearly " L " shape connecting plate 51 by nut One end, the nut both ends are equipped with the connecting plate 51, and the other end of the connecting plate 51 connects with the "T"-shaped part 49 Connect.The Hall switch 45 is fixedly mounted on the cross bar 52 inside console 43, the cross bar 52 and the pull wire head 48 It is slidably connected so that pull wire head 48 can slide axially along cross bar 52.

After starting motor 44, motor 44 is rotated drives connecting plate 51 to be moved along the second screw 50 is axial by the second screw 50 It is dynamic, 51 other end of connecting plate is connected on "T"-shaped part 49 magnet 91 and corresponding to the pull wire head 48 that "T"-shaped part 49 is connected Ground moves, and after the Hall switch 45 on cross bar 52 senses that magnet 91 is moved to calibration position, stops motor 44 and drives, Jin Ershi Tension force is now adjusted by the distance of the sensing movement of pull wire head 48 of Hall switch 45.

Above-mentioned " calibration position " can be installed on the position of "T"-shaped part 49 using device for measuring force in advance, carry out threading pound Whether number and the corresponding calibration of position, position is demarcated after calibration is good in place by 45 sensor magnet 91 of Hall switch, and then correspondingly The start and stop of controlling switch.The quantity of Hall switch is not limited to 3, or and 4 or 5, according to the situation of calibration position Make choice.

Further, the connecting plate 51 is symmetrically arranged at the both sides of the console 42, and two pieces of connecting plates 51 use nut Connection second screw 50,51 other end of connecting plate is fixed through the console 42 with the "T"-shaped part 49 to be connected Connect, the console 42 at corresponding connecting plate 51 is equipped with the second guide-track groove 53, and second guide-track groove 53 is along described first 46 direction of guide-track groove is set.Since connecting plate 51 is limited to displacement in the second guide-track groove 53, so that the stabilization of whole device Property is improved.

Embodiment 2：

The present embodiment is substantially the same manner as Example 1, difference lies in, the pull wire head 48 has been additionally arranged at the bottom of an elastic component, with The Hall switch 45 is protected, avoids connecting plate 51 from driving and occurs to touch with the hardness of Hall switch 45 in 48 moving process of pull wire head Hit.The elastic component is spring or shrapnel, and the cushioning effect of elastic component makes Hall switch to keep the standard controlled with long-time service True property.

Although the embodiment of the utility model has been shown and described above, it is to be understood that above-described embodiment is Exemplary, it is impossible to the limitation to the utility model is interpreted as, those of ordinary skill in the art are not departing from the utility model Principle and objective in the case of above-described embodiment can be changed in the scope of the utility model, change, replace and Modification.

Claims (6)

1. a kind of racket threader, including base, the racket press of described base one end is installed on by bearing in which can rotate horizontally Device is held, and is fixedly mounted on the tension-adjusting gear of the base other end, it is characterised in that：

The holding device of racket includes the swivel base that is connected with the bearing, axially symmetric along the base on the swivel base Equipped with two columns, the column top is fixed with supporting block, and the supporting block both sides of the face are equipped with open slot, the open slot In a hinged connecting rod, the connecting rod connects clamping jaw, and the swivel base between described two columns is equipped with elongated kerve, Thread depressing mechanism is slidably connected on the kerve, the end face center of the supporting block offside opens up elongated guide groove, L-shaped Pushing block is slidably mounted on the guide groove, and threading claw is provided with the pushing block；

The tension-adjusting gear includes console, is fixed on the controller of the console side, and installed in described Motor and multiple Hall switch inside console, the console is equipped with the first guide-track groove of hollow out, under the guide-track groove The console of side is internally provided with the first screw, and be slidably connected a pull wire head on first screw；The motor is connected with Second screw, described second screw one end connect one end of nearly " L " shape connecting plate by nut, and the nut both ends are equipped with The connecting plate, the other end of the connecting plate connects "T"-shaped part, is connected by T " the shapes part with the pull wire head, described "T"-shaped part on magnet is installed；The Hall switch is fixedly mounted on the cross bar inside console, the cross bar with it is described Pull wire head is slidably connected；

Start motor, drive connecting plate to be moved axially along the second screw by the second screw, the connecting plate other end is connected "T"-shaped Magnet on part and the pull wire head being connected with "T"-shaped part correspondingly move, and the Hall switch on cross bar senses that magnet moves To after calibration position, stop motor driving, and then realize the distance moved by Hall switch sensing pull wire head to adjust tension force.

2. racket threader according to claim 1, it is characterised in that：The thread depressing mechanism includes strut, the branch Bar bottom is slidably connected and in the kerve, the strut top is rotatablely connected live conductor pawl.

3. racket threader according to claim 1, it is characterised in that：The threading claw is 5 tooth claws.

4. racket threader according to claim 1, it is characterised in that：Connecting plate is worn described in the tension-adjusting gear The console to be crossed to be connected with the "T"-shaped part, the console at corresponding connecting plate is equipped with the second guide-track groove, and described the Two guide-track grooves are set along the first guide-track groove direction.

5. racket threader according to claim 1, it is characterised in that：The pull wire head bottom is equipped with an elastic component, with Protect the Hall switch.

6. racket threader according to claim 5, it is characterised in that：The elastic component is spring or shrapnel.