Stepless speed change control system of wet drawing machine tool

Abstract

The invention provides a wet drawing machine tool stepless speed change control system which comprises a traction module and a take-up module, and the traction module comprises a motor, a motor belt wheel, a stepless speed changer, a first stepless speed changer belt wheel, a second stepless speed changer belt wheel, a finished product winding drum and a finished product winding drum belt wheel which are installed on a wet drawing machine tool. The motor belt wheel is connected with the first continuously variable transmission belt wheel through a transmission belt, and the second continuously variable transmission belt wheel is connected with the finished winding drum belt wheel through a transmission belt. The take-up module comprises a take-up machine, an upper computer and a controller. A continuously variable transmission is additionally arranged between a motor and a finished winding drum, the required linear speed is input through an upper computer, a controller obtains a continuously variable transmission coefficient through calculation according to the input linear speed and a set algorithm, and the rotating speed of a first continuously variable transmission belt wheel and the rotating speed of a second continuously variable transmission belt wheel are controlled according to the continuously variable transmission coefficient. Therefore, the linear speed of the steel wire is conveniently and quickly controlled, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The invention relates to the technical field of wire drawing machines, and in particular to a continuously variable speed control system for a wet drawing machine. Background Art

[0002] In the production process of steel cord, all types of wire rods must go through multiple processing and drawing processes, and finally be drawn into various specifications of monofilaments through wet drawing machines. The motor speed installed on the existing wet drawing machines is fixed and cannot exceed the upper limit of the speed. If the product has a higher demand for the line speed, the machine tool or the motor needs to be replaced, and the adjusted line speed accuracy of the product is not high, resulting in low production efficiency, poor product quality, high production costs and other problems. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a continuously variable speed control system for a wet drawing machine, which can conveniently and quickly adjust the linear speed of steel wire products and improve production efficiency and product quality.

[0004] To achieve the above object, the present invention adopts the following technical solutions: The invention provides a continuously variable speed control system for a wet drawing machine tool. The continuously variable speed control system for the wet drawing machine tool comprises a traction module and a wire taking-up module.

[0005] The traction module includes a motor, a motor pulley, a continuously variable transmission, a first continuously variable transmission pulley, a second continuously variable transmission pulley, a finished product reel and a finished product reel pulley installed on a wet drawing machine; the continuously variable transmission is arranged between the motor and the finished product reel; the motor drive is connected to the motor pulley, the first continuously variable transmission pulley and the second continuously variable transmission pulley are respectively connected to the continuously variable transmission, and the finished product reel pulley is connected to the finished product reel; the motor pulley is connected to the first continuously variable transmission pulley through a transmission belt, and the second continuously variable transmission pulley is connected to the finished product reel pulley through a transmission belt.

[0006] The wire-taking module includes a wire-taking machine, a host computer and a controller. The host computer and the controller are respectively arranged on the wire-taking machine. The host computer and the continuously variable transmission are respectively electrically connected to the controller. The host computer is used for an operator to input a desired linear speed. The controller is used for calculating a continuously variable speed coefficient according to the input linear speed and a set algorithm, and controlling the rotational speeds of the first continuously variable transmission pulley and the second continuously variable transmission pulley according to the continuously variable speed coefficient.

[0007] Preferably, the host computer includes a display screen, and the display screen is used for data input and data display.

[0008] Preferably, the controller is a PLC controller.

[0009] Preferably, the stepless speed coefficient k = Number of teeth of the first continuously variable transmission pulley / number of teeth of the second continuously variable transmission pulley.

[0010] Preferably, the stepless speed coefficient k Calculated by the following formula:

[0011] in, v is the input linear velocity, s is the motor speed, l is the motor coefficient, p is the traction coefficient, d is the traction circumference, motor coefficient l is the speed of the motor driving the motor pulley, the traction coefficient p = Number of teeth on the second CVT pulley / Number of teeth on the finished drum pulley, traction circumference d is the circumference of the finished roll.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention adds a continuously variable transmission between the motor and the finished product reel, and the required linear speed is input through the upper computer. The controller obtains the continuously variable speed coefficient according to the input linear speed and the set algorithm calculation, and controls the rotational speed of the first continuously variable transmission pulley and the second continuously variable transmission pulley according to the continuously variable speed coefficient, thereby conveniently and quickly realizing the control of the wire linear speed and improving production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of a continuously variable speed control system for a wet drawing machine tool according to some embodiments of the present invention.

[0014] In the figure, 1-motor, 2-continuously variable transmission, 3-finished product reel, 4-motor pulley, 5-first continuously variable transmission pulley, 6-second continuously variable transmission pulley, 7-finished product reel pulley, 8-reeling machine, 9-host computer, 10-controller. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. It can be understood that some technical means of the various embodiments described herein can be replaced or combined with each other without conflict.

[0016] In the description of the present invention, if there are terms such as "first", "second", etc., they are only used to distinguish the objects described, and do not have any order or technical meaning. Therefore, the objects defined as "first", "second", etc. may explicitly or implicitly include one or more of the objects. In addition, "one" or "a" and similar words do not indicate a quantity limitation, but indicate the existence of at least one, and "multiple" means not less than two.

[0017] In the description of the present specification, reference to "one embodiment" or "some embodiments" etc. means that one or more embodiments of the present invention include a specific feature, structure or characteristic described in conjunction with the embodiment. Therefore, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways.

[0018] The present invention provides a continuously variable speed control system for a wet drawing machine tool, referring to Figure 1 The continuously variable speed control system of the wet drawing machine tool includes a traction module and a wire taking-up module.

[0019] Specifically, the traction module includes a motor 1, a motor pulley 4, a continuously variable transmission 2, a first continuously variable transmission pulley 5, a second continuously variable transmission pulley 6, a finished product reel 3 and a finished product reel pulley 7 installed on a wet drawing machine; the continuously variable transmission 2 is arranged between the motor 1 and the finished product reel 3. The motor 1 drives and connects the motor pulley 4, the first continuously variable transmission pulley 5 and the second continuously variable transmission pulley 6 are respectively connected to the continuously variable transmission 2, and the finished product reel pulley 7 is connected to the finished product reel 3. The motor pulley 4 is connected to the first continuously variable transmission pulley 5 through a transmission belt (not shown in the figure), and the second continuously variable transmission pulley 6 is connected to the finished product reel pulley 7 through a transmission belt (not shown in the figure). Among them, the motor 1, the motor pulley 4, the first continuously variable transmission pulley 5 constitute the first traction part, and the second continuously variable transmission pulley 6, the finished product reel 3, and the finished product reel pulley 7 constitute the second traction part.

[0020] The wire-receiving module includes a wire-receiving machine 8, a host computer 9 and a controller 10. The host computer 9 and the controller 10 are respectively arranged on the wire-receiving machine 8. The host computer 9 and the continuously variable transmission 2 are respectively electrically connected to the controller 10. The host computer 9 is used for the operator to input the desired line speed. v The controller 10 is used to calculate the continuously variable speed coefficient according to the input linear speed and the set algorithm. k , and according to the stepless speed coefficient k The rotation speeds of the first CVT pulley 5 and the second CVT pulley 6 are controlled.

[0021] The present invention adds a continuously variable transmission 2 between the motor 1 and the finished product reel 3, inputs the required linear speed through the upper computer 9, and controls the rotation speed of the first continuously variable transmission pulley 5 and the second continuously variable transmission pulley 6 through the controller 10, thereby conveniently and quickly realizing the control of the wire linear speed, improving production efficiency and product quality.

[0022] It should be noted that the continuously variable transmission 2 can adopt a continuously variable transmission product in the prior art according to actual conditions. It adopts a transmission belt and a driving wheel (the first continuously variable transmission pulley 5) and a driven wheel (the second continuously variable transmission pulley 6) with variable working diameter to transmit power, which can realize continuous change of the transmission ratio, thereby obtaining the best match between the transmission system and the engine operating condition, and can achieve smooth acceleration and deceleration, improve, and reduce maintenance costs.

[0023] In some preferred embodiments, the host computer 9 includes a display screen, which is used for data input and data display. In the application, the operator can input the required linear speed on the display screen, and the display screen can display the speed of the motor 1, the real-time speed of the first continuously variable transmission pulley 5, the real-time speed of the second continuously variable transmission pulley 6 and other parameters.

[0024] In some preferred embodiments, the controller 10 is a PLC (Programmable Logic Controller) controller, and the controller 10 is used to control the rotation speeds of the first CVT pulley 5 and the second CVT pulley 6 according to a set algorithm.

[0025] In some preferred embodiments, the stepless speed coefficient k = Number of teeth of the first continuously variable transmission pulley / number of teeth of the second continuously variable transmission pulley.

[0026] Furthermore, the stepless speed coefficient k It can be calculated by the following formula:

[0027] in, v is the input linear velocity, s is the motor speed, l is the motor coefficient, p is the traction coefficient, d is the traction circumference, motor coefficient l is the speed of the motor pulley driven by the motor, the traction coefficient p = Number of teeth on the second CVT pulley / Number of teeth on the finished drum pulley, traction circumference d is the circumference of the finished roll.

[0028] In other embodiments, the continuously variable speed control system of the wet drawing machine includes a traction module and a take-up module. The traction module includes a motor 1, a motor pulley 4, a continuously variable transmission 2, a first continuously variable transmission pulley 5, a second continuously variable transmission pulley 6, a finished product reel 3 and a finished product reel pulley 7 installed on the wet drawing machine; the continuously variable transmission 2 is arranged between the motor 1 and the finished product reel 3. The motor 1 drives and connects the motor pulley 4, the first continuously variable transmission pulley 5 and the second continuously variable transmission pulley 6 are respectively connected to the continuously variable transmission 2, and the finished product reel pulley 7 is connected to the finished product reel 3. The motor pulley 4 is connected to the first continuously variable transmission pulley 5 through a transmission belt, and the second continuously variable transmission pulley 6 is connected to the finished product reel pulley 7 through a transmission belt.

[0029] The wire-receiving module includes a wire-receiving machine 8, a host computer 9 and a controller 10. The host computer 9 and the controller 10 are respectively arranged on the wire-receiving machine 8. The host computer 9 and the continuously variable transmission 2 are respectively electrically connected to the controller 10. The host computer 9 is used for the operator to input the desired line speed. v The controller 10 is used to calculate the continuously variable speed coefficient according to the input linear speed and the set algorithm. k , and according to the stepless speed coefficient k The rotation speeds of the first CVT pulley 5 and the second CVT pulley 6 are controlled.

[0030] Specifically, the line speed entered by the operator on the host computer , motor speed s =2000r / s, motor coefficient l =1, traction coefficient p =1, traction circumference d= 1 meter, the controller 10 can calculate the continuously variable speed coefficient as:

[0031] In this way, the controller 10 controls the rotation speed of the first continuously variable transmission pulley 5 and the second continuously variable transmission pulley 6 according to the continuously variable transmission coefficient calculated above, so that the linear speed of the steel wire reaches the set , thereby improving production efficiency and product quality.

[0032] In summary, the present invention provides a continuously variable speed control system for a wet drawing machine, in which a continuously variable transmission is added between the motor and the finished product reel, and the required linear speed is input through the upper computer. The controller obtains the continuously variable speed coefficient according to the input linear speed and the set algorithm, and controls the rotational speeds of the first continuously variable transmission pulley and the second continuously variable transmission pulley according to the continuously variable speed coefficient, thereby conveniently and quickly realizing the control of the wire linear speed and improving production efficiency and product quality.

[0033] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, changes and modifications made without departing from the spirit and scope of the present invention are all within the scope of patent protection of the present invention.

Claims

1. A continuously variable speed control system for a wet drawing machine tool, characterized in that: The continuously variable speed control system of the wet drawing machine tool includes a traction module and a wire taking-up module; The traction module comprises a motor, a motor pulley, a continuously variable transmission, a first continuously variable transmission pulley, a second continuously variable transmission pulley, a finished product reel and a finished product reel pulley installed on a wet drawing machine; the continuously variable transmission is arranged between the motor and the finished product reel; the motor drives and connects the motor pulley, the first continuously variable transmission pulley and the second continuously variable transmission pulley are respectively connected to the continuously variable transmission, and the finished product reel pulley is connected to the finished product reel; the motor pulley is connected to the first continuously variable transmission pulley through a transmission belt, and the second continuously variable transmission pulley is connected to the finished product reel pulley through a transmission belt; The wire-taking module includes a wire-taking machine, a host computer and a controller. The host computer and the controller are respectively arranged on the wire-taking machine. The host computer and the continuously variable transmission are respectively electrically connected to the controller. The host computer is used for an operator to input a desired linear speed. The controller is used for calculating a continuously variable speed coefficient according to the input linear speed and a set algorithm, and controlling the rotational speeds of the first continuously variable transmission pulley and the second continuously variable transmission pulley according to the continuously variable speed coefficient.

2. The continuously variable speed control system for wet drawing machine tool according to claim 1, characterized in that: The host computer comprises a display screen, and the display screen is used for data input and data display.

3. The continuously variable speed control system for wet drawing machine tool according to claim 1, characterized in that: The controller is a PLC controller.

4. The continuously variable speed control system for wet drawing machine tool according to claim 1, characterized in that: The continuously variable speed coefficient k = Number of teeth of the first continuously variable transmission pulley / number of teeth of the second continuously variable transmission pulley.

5. The continuously variable speed control system for a wet drawing machine tool according to claim 4, characterized in that: The continuously variable speed coefficient k Calculated by the following formula: in, v is the input linear velocity, s is the motor speed, l is the motor coefficient, p is the traction coefficient, d is the traction circumference, motor coefficient l is the speed of the motor driving the motor pulley, the traction coefficient p = Number of teeth on the second CVT pulley / Number of teeth on the finished drum pulley, traction circumference d is the circumference of the finished roll.

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