CN107158670B

CN107158670B - Automatic wire stretcher for tennis racket and badminton racket

Info

Publication number: CN107158670B
Application number: CN201710586373.5A
Authority: CN
Inventors: 龚金锋; 何学海; 何学谦
Original assignee: Shenzhen Youruili Technology Co ltd
Current assignee: Shenzhen Youruili Technology Co ltd
Priority date: 2017-07-18
Filing date: 2017-07-18
Publication date: 2023-05-23
Anticipated expiration: 2037-07-18
Also published as: CN107158670A

Abstract

The invention discloses an automatic string pulling machine for tennis rackets and badminton rackets. Be provided with the racket frame of being fixed with on the fixed straight line slip table, racket both sides respectively are provided with two sets of mechanisms of acting as go-between, act as go-between the mechanism is fixed respectively on first cross slip table, the second cross slip table, the thirty-first slip table, the forty-first slip table of second cross slip table, the thirty-first cross slip table of second cross slip table axial pair parallel arrangement is on same racket face, thirty-first cross slip table, the thirty-first cross slip table of fourth cross slip table axial pair parallel arrangement is on same racket face, and all have a axle perpendicular with racket face in first cross slip table, the twenty-first cross slip table, the thirty-first cross slip table, the thirtieth slip table is parallel to racket face axle mutually perpendicular, first cross slip table, the thirtieth slip table, the slip table axle of fortieth slip table is parallel or perpendicular with racket line. The invention adopts the racket frame inner grid to select the stay wire position, the separation degree of the wire and the wire frame is large, the wire selecting efficiency is high, and the reliability is good.

Description

Automatic wire stretcher for tennis racket and badminton racket

Technical Field

The invention relates to the technical field of mechanical manufacturing, in particular to an automatic wire stretcher for tennis rackets and badminton rackets.

Background

The traditional racket wire stretcher mainly comprises a drag hook, a turntable with a fixed clamp, a wire clamp with a linear sliding table, a wire clamp and the like. The method is characterized in that: the strings are pulled on the outer edge of the racket frame, the strings are close to the racket frame after being threaded, the gaps are small, and more than two strings are randomly arranged at the same position of the racket frame according to the threading requirement. The difficulty of identifying and separating the selected lines is high, the efficiency is low, and the error rate is high. For example, in the racket string pulling machine of chinese patent application number CN92234118.4, because the string is pulled on the outer edge of the racket frame by adopting the prior art, the string and the frame have small separation degree, and more than two strings are randomly arranged at the same position. And the prior art does not see an automatic wire stretcher.

Accordingly, those skilled in the art have been working on developing an automatic thread pulling machine for tennis rackets and badminton rackets.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present invention provides an automatic string pulling machine for tennis rackets and badminton rackets, which adopts a string pulling position selected on a grid in a racket frame, and has the advantages of large string and string frame separation degree, high string selection efficiency and good reliability.

In order to achieve the aim, the automatic wire pulling machine for tennis rackets and badminton rackets comprises a first cross sliding table, a twenty-first sliding table, a thirty-first sliding table, a forty-first sliding table, a fixed linear sliding table, a frame and a wire pulling mechanism, wherein the frame is provided with the first cross sliding table, the twenty-first sliding table, the thirty-first sliding table, the forty-first sliding table, the fixed linear sliding table and the wire pulling mechanism, a racket frame is fixed on the fixed linear sliding table, two groups of wire pulling mechanisms are respectively arranged on the two sides of the racket, the wire pulling mechanisms are respectively fixed on the first cross sliding table, the twenty-first sliding table, the thirty-first sliding table and the forty-first sliding table, the first cross sliding table and the forty-first sliding table are axially arranged on the same racket surface in a two-two parallel mode, one axis of each of the first cross sliding table, the thirtieth sliding table, the thirty-first sliding table and the fortieth sliding table is perpendicular to the surface, and the thirtieth sliding table is parallel to the racket shaft.

Preferably, the wire pulling mechanism comprises a wire clamp, wire tighteners, steering guide wheels and a drag hook, wherein the steering guide wheels are axially arranged in parallel, the steering guide wheels are perpendicular to the pretensioned wire, the distance between the two steering guide wheels is the distance between the drag hook and the wire pulling hook, the wire tighteners are arranged at the pretensioning end of the wire pulling direction of the steering guide wheels, and the wire clamp is arranged at the pretensioning end.

Preferably, the steering guide wheel is in a waist drum shape.

The beneficial effects of the invention are as follows: compared with the prior art, the wire-pulling position selection device has the advantages of high wire-pulling efficiency, good reliability, labor saving, cost reduction and convenience for automatic operation.

The conception, specific structure, and technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present invention.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the wire pulling mechanism of the present invention;

fig. 3 is a schematic view of another structure of the wire pulling mechanism of the present invention.

Detailed Description

As shown in fig. 1-3, in a specific embodiment of the present invention, the racket frame 7 is arranged on a fixing clamp with a straight sliding table (a fixed straight sliding table 5) in the middle, two cross sliding tables are respectively arranged on two sides of the racket, and a wire pulling mechanism is arranged on each cross sliding table, and all the components are arranged on the stand 6.

As shown in fig. 1: the first cross sliding table 1 and the second cross sliding table 2 are axially parallel in pairs, the thirty-first sliding table 3 and the fourth cross sliding table 4 are vice versa, all axial directions of the first cross sliding table 1, the second cross sliding table 2, the thirty-first sliding table 3 and the fourth cross sliding table 4 are parallel or perpendicular to the racket strings 12, two shafts of the first cross sliding table 1 and the second cross sliding table 2, which are parallel to the racket face, are perpendicular to two shafts of the thirty-first sliding table 3 and the fourth cross sliding table 4, which are parallel to the racket face, and the stay wire mechanism is arranged at a position close to the racket face.

The wire pulling mechanism comprises a wire pulling mechanism: each set comprises two steering guide wheels 10, a drag hook 11, a wire clamp 8 and a wire clamp 9, as shown in fig. 2. 1. The distance between the two steering guide wheels is the distance that the drag hook can pass through from the pull wire between the two wheels; 2. the wire grip is arranged at the pre-tightening end of the racket wire 12, when the drag hook pulls the wire from between the two guide wheels, if the pulling force does not reach the rated value, the wire grip clamps the wire to pull the wire to assist the wire grip to reach the rated value, and if the pulling force of the drag hook can reach the rated value, the wire grip can not or does not act; 3. the wire clamp is arranged at the pre-tightening end, and when the tensile force reaches the rated value, the wire clamp is clamped and fixed by the action of the wire clamp, so that the wire clamp is prevented from retreating.

The process flow of the specific embodiment comprises the following steps: A. manually placing the racket into a fixing clamp, starting, and fixing the clamping racket to move to a stay wire working surface through a linear sliding table; B. according to the threading sequence, racket warps are pulled first, a group of stay wire mechanisms move to a pre-tensioning wire position along with the cross sliding table, and the stay wire mechanisms move to be close to the pre-tensioning wires along the vertical direction of the racket surface; C. pulling the wire from the position between the two steering guide wheels by the action of the drag hook, if the pulling force does not reach the rated value, pulling the wire clamping at the pretension end by the aid of the wire clamping assistance to the rated value, and enabling the wire clamping to act, clamp and fix, and releasing and resetting the wire clamping pliers; D. and the other group of wire pulling mechanism acts, when the drag hook of the group pulls wires, the drag hook of the previous group releases and resets, after the group completes the action, the wire clamp of the previous group is loosened, and the wire pulling mechanism is ready for the next action. Thus, the racket strings are tensioned gradually by the four groups of stay wire mechanisms which act in sequence according to the pre-tensioning sequence.

The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims

1. Automatic wire stretcher for tennis racket and badminton racket; the method is characterized in that: including first cross slip table (1), the first cross slip table (2), thirty-first slip table (3), fortieth slip table (4), fixed sharp slip table (5), frame (6) and wire pulling mechanism, be provided with first cross slip table (1) on frame (6), the first cross slip table (2), thirty-first slip table (3), fortieth slip table (4), fixed sharp slip table (5) and wire pulling mechanism, be fixed with racket frame (7) on fixed sharp slip table (5), racket both sides respectively are provided with two sets of wire pulling mechanism, wire pulling mechanism fixes respectively on first cross slip table (1), the first cross slip table (2), thirty-first slip table (3), fortieth slip table (4), on fortieth slip table (4), first cross slip table (1), two parallel arrangement of twenty-first slip table (2) axial direction are at same ball face, and first cross slip table (1), thirtieth slip table (2), thirtieth slip table (3), be fixed with racket frame (7) on the fixed line slip table (5), racket both sides respectively, wire pulling mechanism fixes on first cross slip table (1), the first cross slip table (2) axial two parallel arrangement of thirtieth slip table (2) is at same ball face, and the first cross slip table (3), the first cross slip table (4) axial two parallel arrangement of cross slip table (2) are perpendicular to each other, the sliding table shaft of the forty-shaped sliding table (4) is parallel or perpendicular to racket wires, the wire pulling mechanism comprises a wire clamp (8), wire tighteners (9), steering guide wheels (10) and a drag hook (11), the wire tighteners (9) are arranged at the pre-tightening end of the racket wires (12), when the drag hook (11) pulls wires from the steering guide wheels (10), if the pulling force cannot reach the rated value, the wire tighteners clamp the wire pulling assistance force to enable the wire pulling assistance force to reach the rated value, and if the pulling force of the drag hook can reach the rated value, the wire tighteners can not or do not act.

2. The automatic string pulling machine for tennis rackets and badminton rackets according to claim 1; the method is characterized in that: the wire clamp is characterized in that the steering guide wheels (10) are axially arranged in parallel, the steering guide wheels (10) are perpendicular to the pretension wire, the distance between the two steering guide wheels (10) is the distance through which the wire can pass when the wire is pulled up by the drag hook, the wire clamp (9) is arranged at the pretension end of the steering guide wheels (10) in the wire pulling direction, and the wire clamp (8) is arranged at the pretension end.

3. The automatic string pulling machine for tennis rackets and badminton rackets according to claim 2; the method is characterized in that: the steering guide wheel (10) is in a waist drum shape.