CN206867620U - Tension control device for racket stringing machine - Google Patents

Abstract

A tension regulating device of a racket threading machine. Comprises a wire pulling unit and a control unit. The control unit can control the wire pulling unit to select one of three different modes so as to pull a ball frame wire. The first type of pulling method is the traditional fixed pound pulling method which outputs rated pulling force and can be used for corresponding ball frame wires with lower ductility. The second is to detect the tensile stress of the ball frame wire and compensate the tensile force after applying the tensile force, which is beneficial to the automation of the wire drawing process. The third is to apply a pre-tension to the ball wire and then quickly remove the tension, and then apply a rated tension to the ball wire again, so as to pull the ball wire apart to avoid losing weight. The utility model discloses the integration nature is high, and can select the suitable mode of acting as go-between according to the ductility of different ball frame lines, can effectively avoid the problem of losing the pound behind the acting as go-between.

Description

Tension control device for racket stringing machine

technical field

The utility model relates to a tension control device, in particular to a tension control device which is applied to a racket threading machine and has three control modes.

Background technique

Referring to Fig. 1, a general racket threading machine 1 comprises a base 11, a racket stand device 12 pivotally mounted on the base 11, and a tension control device arranged on the base 11 and spaced apart from the racket stand device 12. device 13. The tension regulating device 13 includes a guide rail 131, a mobile platform 132 arranged on the guide rail 131 reciprocally movable along the guide rail 131, a transmission structure 133 arranged on the mobile platform 132, a mobile platform 132 arranged on the mobile platform 132 and a clamping arm 134 for clamping a ball frame line 2 , and a handle 135 disposed on the mobile platform 132 and operable to link the transmission structure 133 . When the user turns the handle 135 , the transmission structure 133 will be linked to drive the mobile platform 132 to reciprocate along the guide rail 131 . During operation, one end of the ball frame wire 2 is clamped on the frame device 12 , and the other end is clamped by the clamping arm 134 . Then the user rotates the handle 135 so that the transmission structure 133 drives the mobile platform 132 to retreat, and then exerts a pulling force on the ball frame wire 2 to achieve the effect of pulling the wire.

However, it is difficult to give an accurate rated pulling force in this way of manually applying force, and the user stops applying force after the force is applied to the rated pulling force. But most of the ball frame wire 2 has ductility, so the ball frame wire 2 is not pulled apart due to the margin produced by the ductility after being stressed, causing the ball frame wire 2 to lose weight and relax. problem, resulting in lower racket quality.

Contents of the invention

The purpose of the utility model is to provide a tension control device that can reliably pull apart the ball frame line to avoid the problem of weight loss.

The tension control device of the racket threading machine of the utility model, the racket threading machine includes a base, and a racket mounting device arranged on the base; A wire-drawing unit on the base, and a control unit, the control unit includes an operation panel arranged on the wire-drawing unit, a receiving module electrically connected to the operation panel, and a receiving module electrically connected to the wire-drawing unit a control module, the receiving module can switch between a first state, a second state and a third state according to the operation information of the operation panel, when the receiving module is in the first state, the control module controls the The wire pulling unit outputs a rated pulling force to a ball frame wire. When the receiving module is in the second state, the control module controls the wire pulling unit to first output a rated pulling force to the ball frame wire, and then according to the internal pulling force of the ball frame wire The stress value increases the tension strength. When the receiving module is in the third state, the control module controls the cable unit to output a pre-tension force to the ball frame line first, and then makes the cable unit output a pre-tension force to the ball frame line again after unloading the force. Output a rated pulling force.

The purpose of the utility model and the solution to its technical problems can also be further realized by adopting the following technical measures.

Preferably, the tension regulating device of the aforementioned racket stringing machine, wherein the wire pulling unit includes a casing arranged on the base, a guide rail arranged on the casing, a main frame capable of reciprocating movement along the guide rail, a set A wire clamp for clamping the ball frame wire on the main frame, and a transmission structure arranged in the casing and electrically connected to the control module, the transmission structure can be controlled by the control module to drive the The main frame moves along the guide rail.

Preferably, in the aforementioned tension control device for a racket stringing machine, the wire pulling unit further includes an induction switch arranged on the main frame to control the wire clamp to clamp.

Preferably, in the aforementioned tension control device for a racket stringing machine, the base includes a joint portion electrically connected to the racket frame device, the casing of the wire-drawing unit is detachably arranged on the base, and the wire-drawing unit It also includes a port that is arranged on the casing and can be detachably electrically connected to the joint portion, and the control unit also includes a port that is electrically connected to the port and the operation panel to control the rotation speed of the frame device control module.

The beneficial effect of the utility model is that: the control unit can control the wire pulling unit to select one of three different ways to pull a ball frame wire. The first wire pulling method is the fixed-pound wire pulling method with the traditional output rated pulling force, which can be used to correspond to the ball frame wire with low ductility. The second method is to detect the tensile stress of the ball frame wire and add the tensile force after the tension is applied, which is beneficial to the automation of the wire drawing process. The third is to apply a pre-tension to the ball frame line and then quickly release the force, and then re-apply the rated tension to the ball frame line. In this way, the ball frame line can be pulled apart first to avoid weight loss. This new type has high integration, and can choose a suitable drawing method according to the ductility or demand of different ball frame lines, which can effectively avoid the problem of weight loss after drawing the line.

Description of drawings

Fig. 1 is a perspective view illustrating a general racket stringing machine;

Fig. 2 is a side view illustrating an embodiment of the tension control device of the racket threading machine of the present invention;

Fig. 3 is an incomplete three-dimensional exploded view, illustrating that a casing can be directly disassembled from a base; and

Figure 4 is a block diagram illustrating the connection relationship between a control unit and other components.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

Referring to Fig. 2, Fig. 3 and Fig. 4, it is an embodiment of the tension control device 4 of the racket threading machine 3 of the present invention. The racket stringing machine 3 includes a base 31 with a joint portion 310 protruding from the top surface, and a racket stand device 32 disposed on the base 31 and electrically connected to the joint portion 310 . The tension control device 4 includes a wire-drawing unit 5 disposed on the base 31 at a distance from the frame device 32 , and a control unit 6 disposed on the wire-drawing unit 5 .

The wire pulling unit 5 includes a casing 51 detachably arranged on the base 31 , a guide rail 52 arranged in the casing 51 , a main body arranged on the guide rail 52 and capable of reciprocating movement along the guide rail 52 . Frame 53, a wire clamp 54 arranged on the main frame 53, an induction switch 55 arranged on the main frame 53 to control the wire clamp 54, a transmission structure 56 arranged in the casing 51, And a port 57 disposed on the bottom surface of the casing 51 and contacting the connector portion 310 of the base 31 to electrically connect with each other.

The control unit 6 includes an operation panel 61 arranged on the casing 51 of the wire pulling unit 5, a receiving module 62 arranged in the casing 51 and electrically connected to the operation panel 61, and a receiving module electrically connected to the receiving module. 62 and the control module 63 of the transmission structure 56 of the cable unit 5 , and a speed control module 64 electrically connected to the port 57 of the cable unit 5 and the operation panel 61 .

When carrying out wire pulling operations, one end of a ball frame wire 7 is first fixed on the frame device 32, the other end is placed on the wire clamp 54, and the wire clamp 54 is controlled by touching the sensor switch 55 Clamp and fix the ball frame line 7 . Then operate this operating panel 61, and set the rated pulling force according to the ductility and other material properties of the ball frame wire 7, and select one from three kinds of backguy modes. When selecting different wire pulling modes, the receiving module 62 will switch among a first state, a second state and a third state according to the information of the operation panel 61 . When the receiving module 62 is in the first state, the control module 63 will control the transmission structure 56 to drive the main frame 53 to move away from the racket device 32 along the guide rail 52, thereby directly giving the ball frame line 7 Rated tensile force, this kind of cable mode is suitable for ball frame lines with low ductility 7. When the state module is in the second state, the control module 63 will control the transmission structure 56 to drive the main frame 53 to move away from the frame device 32 along the guide rail 52, and after applying a rated pulling force, it will Detecting the tensile stress value inside the ball frame wire 7 increases the tensile strength to achieve the effect of replenishing the weight. This wire drawing mode is suitable for the ball frame wire 7 with ductility, and is conducive to the automation of the wire drawing operation. When the state module is in the third state, the control module 63 will control the transmission structure 56 to drive the main frame 53 to move away from the racket device 32 along the guide rail 52 and then return quickly, so that the ball frame The wire 7 first applies a pre-tension force and then unloads the force, and then the main frame 53 moves again to apply a rated tension force to the ball frame wire 7 . It should be noted that the size of the pre-tension force can be selected by the operator on the operation panel 61, which is generally 5% or 10% of the rated tension force. This kind of wire drawing mode can first pull away the stress of the ball frame wire 7, and then it is not easy to have the problem of not fully stretching and still having room when pulling it apart again, and can avoid the ball frame wire 7 from being set on the ball frame (not shown in the figure). Shown) after the loss of weight due to relaxation problems.

It should be noted that the rotation speed control module 64 is electrically connected to the frame device 32 through the port 57 and the joint portion 310 , so the rotation speed of the frame device 32 can be controlled through the operation panel 61 . The frame device 32 and the control unit 6 are not directly connected by electric wires, but are electrically connected through the contact design of the joint part 310 and the port 57, so the casing 51 can be connected by the base 31 It can be disassembled from the top, which is convenient for maintenance and transportation.

To sum up, through the three-in-one integrated design, the control unit 6 has three different wire-drawing modes, the operator can choose the wire-drawing mode according to experience or needs, and the problem of weight loss can be avoided, so it can indeed achieve The purpose of this utility model.

Claims (4)

1. A tension control device for a racket stringing machine, the racket stringing machine includes a base, and a racket stand device arranged on the base; it is characterized in that: the tension control device includes a ground spaced apart from the racket stand device A cable unit arranged on the base, and a control unit, the control unit includes an operation panel arranged on the cable unit, a receiving module electrically connected to the operation panel, and a receiving module electrically connected to the cable The control module of the unit, the receiving module can switch between a first state, a second state and a third state according to the information operated by the operation panel, when the receiving module is in the first state, the control module controls The wire-drawing unit outputs a rated pulling force to a ball frame wire. When the receiving module is in the second state, the control module controls the wire-drawing unit to output a rated pulling force to the ball frame wire first, and then according to the inside of the ball frame wire The tensile stress value increases the tensile strength. When the receiving module is in the third state, the control module controls the cable unit to output a pre-tension force to the ball frame line first, and then makes the cable unit output a pre-tension force to the ball frame again after unloading the force. The line outputs a rated pulling force. 2. The tension control device of the racket stringing machine according to claim 1, characterized in that: the wire pulling unit comprises a casing arranged on the base, a guide rail arranged on the casing, and a reciprocating movement along the guide rail. The main frame, a wire gripper set on the main frame to clamp the ball frame wire, and a transmission structure set in the casing and electrically connected to the control module, the transmission structure can be controlled by the The control of the module drives the main frame to move along the guide rail. 3 . The tension control device of the racket stringing machine according to claim 2 , wherein the cable pulling unit further comprises an induction switch arranged on the main frame to control the thread clamp to clamp. 4 . 4. The tension control device of the racket stringing machine according to claim 3, characterized in that: the base includes a joint portion electrically connected to the racket racket device, and the casing of the wire pulling unit is detachably arranged on the base , and the cable unit also includes a port that is arranged on the casing and can be detachably electrically connected to the joint portion, and the control unit also includes a port that is electrically connected to the operation panel to control the rack The rotation speed control module of the clapper device.