Wire tightening structure and wire tightening method of multi-wire cutting device

Abstract

The invention discloses a wire tightening structure and a wire tightening method of a multi-wire cutting device, and relates to the technical field of material processing. The structure comprises a cutting mechanism, a wire pressing mechanism, a wire drawing mechanism and a tension detection unit, the cutting mechanism is provided with double wire storage cylinders and a parallel metal wire set, the wire pressing mechanism achieves overall pre-tightening of metal wires through a guide wheel set, and the wire drawing mechanism is provided with an independent wire drawing unit for fine adjustment. The tension detection unit monitors the tension of each metal wire in real time through the wire sensor, and the controller controls the mechanisms to act in stages according to a first tension threshold and a second tension threshold: when the tension of the single wire reaches the first threshold, the wire pressing mechanism is triggered to cooperatively pre-tighten, after the whole group reaches the standard, the wire drawing unit is switched to independently adjust, and wire tightening is completed after the second threshold is reached one by one. Through cooperative control of the wire pressing mechanism and the wire drawing mechanism, accurate and independent regulation and control of multi-wire tension are achieved, the problems that due to uneven tension of a traditional device, the cutting precision is poor, and the wire breaking risk is high are effectively solved, and the cutting stability and the material machining efficiency are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of material processing technology, in particular to a wire tightening structure and method of a multi-wire cutting device. BACKGROUND

[0002] In the field of material processing, multi-wire cutting technology has the advantages of high cutting precision, efficiency and material utilization rate due to the synchronous cutting of multiple parallel metal wires. However, the wire tightening structure and method of the conventional multi-wire cutting device have obvious limitations.

[0003] In the conventional device, it is difficult to accurately and independently control the tension of each metal wire during wire tightening. Although the metal wires of the multi-wire cutting device are of the same material and length, the lack of precise calculation of the joint end fixation results in slight differences in the tension of each metal wire. Excessive tension can cause the metal wire to break, affecting the cutting quality, interrupting the cutting process, and reducing production efficiency; insufficient tension cannot guarantee the cutting precision and stability, resulting in substandard material surface quality and dimensional accuracy.

[0004] In addition, the conventional wire tightening structure is complex to operate, requires frequent manual intervention, increases labor intensity, and is difficult to ensure consistency and accuracy of operation. In the face of different specifications and material cutting requirements, the conventional method lacks flexibility and adaptability, and cannot quickly adjust to the optimal wire tightening state, limiting the wider application of the multi-wire cutting device. Therefore, a wire tightening structure and method of a multi-wire cutting device are proposed. SUMMARY

[0005] (I) Technical problems solved

[0006] To overcome the shortcomings of the prior art, the present application provides a wire tightening structure and method of a multi-wire cutting device, which has the advantages of accurately and independently controlling the tension of each metal wire, convenient operation, and strong adaptability, and solves the problems of the conventional multi-wire cutting device, such as difficulty in accurately and independently controlling the tension of each metal wire during wire tightening, resulting in inconsistent tension of each metal wire, affecting cutting quality, interrupting the cutting process, and reducing production efficiency, as well as the complexity of the conventional wire tightening structure, the need for frequent manual intervention, and the lack of flexibility and adaptability.

[0007] (II) Technical solutions

[0008] To achieve the above-mentioned accurate and independent control of the tension of each metal wire, convenient operation, and strong adaptability, the present application provides the following technical solutions:

[0009] In one aspect of the present application, a wire tightening structure of a multi-wire cutting device is provided, comprising:

[0010] The cutting mechanism comprises two symmetrical wire storage cylinders, at least two parallel metal wires wound on the two wire storage cylinders, and a first motor and a second motor respectively driving the two wire storage cylinders;

[0011] The wire pressing mechanism is arranged on the first side of the cutting mechanism and comprises a wire pressing part movable in a direction perpendicular to the metal wires and a first moving pair driving the wire pressing part;

[0012] The wire pulling mechanism is arranged on the second side opposite to the first side of the cutting mechanism and comprises a fixed base and a plurality of wire pulling units independently installed on the fixed base;

[0013] The tension detection unit comprises a wire tension sensor arranged on each metal wire, and each wire tension sensor is connected to the same controller, and the controller pre-stores a first tension threshold and a second tension threshold;

[0014] The controller is configured to perform:

[0015] When the tension of any metal wire reaches the first tension threshold, the wire pressing mechanism is started to apply pressure to all metal wires;

[0016] When the tension of all metal wires reaches or exceeds the first tension threshold, the wire pressing mechanism is stopped and the wire pulling mechanism is started;

[0017] When the tension of each metal wire reaches the second tension threshold, the corresponding wire pulling unit is cut off one by one.

[0018] In order to facilitate wire loading, wire installation and wire cutting work, the first motor and the second motor are configured with synchronous constant speed mode and differential speed adjustment mode, and are connected with the controller.

[0019] In order to realize the pre-tightening of all metal wires, the wire pressing part comprises a mounting base and at least two groups of guide wheels fixed to the mounting base, each group of guide wheels comprising two parallel guide wheels, and all guide wheels are located on the same plane and parallel to the metal wire arrangement plane.

[0020] In order to improve the wire pressing range of the wire pressing part and the adaptability to the metal wires, the guide wheel groups and the metal wires are one-to-one corresponding, and the distance between the two guide wheels on the same guide wheel group is adjustable.

[0021] In order to realize the wire tightening of all metal wires, each wire pulling unit comprises: a bidirectional driving assembly having two second moving pairs with opposite directions; and two guide wheels respectively installed on different second moving pairs.

[0022] In order to improve the wire tightening efficiency of the metal wire, the moving direction of the two second moving pairs is parallel to the wire feeding direction or the wire discharging direction of the corresponding metal wire, so that the bidirectional driving assembly drives the two guide wheels to move in the opposite directions along the extension direction of the metal wire.

[0023] Another aspect of the present application also provides a wire tightening method of the wire tightening structure of the multi-wire cutting device, comprising the following steps:

[0024] S1, after the metal wire threading is completed, the wire storage cylinder driving motor is started to perform initial tensioning;

[0025] S2, the wire tension sensor is used to monitor the tension of each metal wire in real time, and when the tension of any metal wire reaches the first tension threshold, the wire pressing mechanism is controlled to apply pressure to the metal wire group;

[0026] S3, when the tension of all metal wires reaches the first tension threshold, the wire pressing mechanism is closed and all wire drawing units are started;

[0027] S4, the tension of the corresponding metal wire is adjusted independently by each wire drawing unit, and when the tension of a single metal wire reaches the second tension threshold, the corresponding wire drawing unit is closed;

[0028] S5, after all the wire drawing units stop working, it is confirmed that the wire tightening operation is completed.

[0029] (Three) beneficial effects

[0030] Compared with the prior art, the present application provides a wire tightening structure and a wire tightening method of a multi-wire cutting device, which has the following beneficial effects:

[0031] The wire tightening structure and the wire tightening method of the multi-wire cutting device, by setting the tension detection unit to monitor the tension of each metal wire in real time, and using the controller to accurately control the wire pressing mechanism and the wire drawing unit to work, realize the accurate and independent control of the tension of each metal wire, effectively avoid the cutting quality problem and the production efficiency reduction caused by the inconsistent tension, improve the cutting precision and stability.

[0032] The wire tightening structure and the wire tightening method of the multi-wire cutting device, through the cooperation of the wire pressing mechanism and the wire drawing mechanism, as well as the adjustable distance between the guide wheel groups and the independent adjustment of the wire drawing units, greatly simplify the wire tightening operation process, reduce the labor intensity, and at the same time, enhance the adaptability and flexibility of the equipment to different specifications and materials, can quickly adjust to the best wire tightening state, and widen the application range of the multi-wire cutting device. DETAILED DESCRIPTION

[0033] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation of the present application. In the drawings:

[0034] Figure 1 It is a schematic view of the tight wire structure side of the application;

[0035] Figure 2 It is a schematic view of the tight wire structure side of the application;

[0036] Figure 3 It is a schematic view of the tight wire structure side of the application;

[0037] Figure 4 It is a schematic view of the tight wire structure side of the application;

[0038] Figure 5 It is a schematic view of the tight wire structure side of the application;

[0039] In the figure: 1, cutting mechanism; 11, wire storage cylinder; 12, metal wire; 13, first motor; 14, second motor; 2, wire pressing mechanism; 21, wire pressing part; 211, mounting base plate; 212, guide wheel set; 2121, guide wheel one; 22, first moving pair; 3, wire drawing mechanism; 31, fixed base; 32, wire drawing unit; 321, bidirectional driving assembly; 3211, second moving pair; 322, guide wheel two; 4, tension detection unit; 41, wire tension sensor; 5, controller. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0041] In the description of the application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application.

[0042] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] Embodiment one

[0044] As Figures 1 to 3 A wire tightening structure of a multi-wire cutting device, comprising:

[0045] The cutting mechanism 1 comprises two symmetrically arranged wire storage cylinders 11, at least two parallel metal wires 12 wound on the two wire storage cylinders 11, and a first motor 13 and a second motor 14 respectively driving the two wire storage cylinders 11. The cutting mechanism 1 is the core part of the multi-wire cutting device, and the cutting of the workpiece is realized through the two symmetrically arranged wire storage cylinders 11 and the parallel metal wires 12 wound thereon. The first motor 13 and the second motor 14 respectively drive the two wire storage cylinders 11 to ensure the stable movement of the metal wires 12 and the cutting efficiency.

[0046] The wire pressing mechanism 2 is located on one side of the cutting mechanism 1, and the wire pressing part 21 is driven by the first moving pair 22 to move in the direction perpendicular to the metal wires 12, so as to exert pressure on the metal wires 12 and realize the preliminary wire tightening effect.

[0047] The wire pulling mechanism 3 is arranged on the second side opposite to the first side of the cutting mechanism 1, and comprises a fixed base 31 and a plurality of wire pulling units 32 independently arranged on the fixed base 31. Each wire pulling unit 32 can independently adjust the tension of the corresponding metal wire 12 to ensure the accuracy and efficiency of the wire tightening.

[0048] The tension detection unit 4 monitors the tension of each metal wire 12 in real time through the wire tension sensor 41, and transmits the data to the controller 5. The controller 5 pre-stores a first tension threshold and a second tension threshold, which are used to determine when to start the wire pressing mechanism 2 and the wire pulling mechanism 3, and when to cut off the wire pulling unit 32.

[0049] It should be noted that the first tension threshold is the pre-tightening force value of the metal wires 12 of the device after winding or loading, and the second tension threshold is the tension value of the metal wires 12 of the device during wire cutting work.

[0050] The controller 5 is configured to perform:

[0051] When the tension of any wire 12 reaches the first tension threshold, the wire pressing mechanism 2 is started to apply pressure to all wires 12; when the tension of all wires 12 reaches or exceeds the first tension threshold, the wire pressing mechanism 2 is stopped and the wire pulling mechanism 3 is started; when the tension of each wire 12 reaches the second tension threshold, the corresponding wire pulling unit 32 is cut off one by one.

[0052] The wire pressing structure of the multi-wire cutting device realizes precise and independent control of the tension of each wire 12 by setting the tension detection unit 4 to monitor the tension of each wire 12 in real time and using the controller 5 to accurately control the operation of the wire pressing mechanism 2 and the wire pulling unit 32, effectively avoiding cutting quality problems and reducing production efficiency caused by inconsistent tension, and improving cutting precision and stability.

[0053] The first motor 13 and the second motor 14 are configured with synchronous constant speed mode and differential speed adjustment mode, and are connected with the controller 5;

[0054] When the device needs to be wired, one of the motors can be rotated, and the other motor remains stationary or moves slowly in the same direction, so that the wire 12 slowly winds around the wire storage cylinder 11;

[0055] When the device needs to be wire-cutting, after all the wires 12 are tightened, the first motor 13 and the second motor 14 can be rotated in the same direction and at the same speed, driven by the two motors, so that the wire 12 continuously moves and cuts, and the first motor 13 and the second motor 14 can also be reversely rotated, which is used for the case where the wire 12 of one side of the wire storage cylinder 11 is not enough, and the wire 12 is cut in a cycle by reversing.

[0056] As Figure 4 The wire pressing part 21 includes a mounting base plate 211 and at least two sets of guide wheel sets 212 fixed to the mounting base plate 211, each set of guide wheel sets 212 includes two parallel guide wheels 2121, and all guide wheels 2121 are located in the same plane and parallel to the plane of the wire 12 arrangement. This structure ensures the integrity and consistency of the wire pressing part 21 when pressing the wire 12, and can control the tension of all wires 12 above the first tension threshold by pressing, realizing the pre-tightening of all wires 12; the guide wheel set 212 is one-to-one corresponding to the wire 12, and the distance between the two guide wheels 2121 on the same guide wheel set 212 is adjustable, so as to improve the wire pressing range of the wire pressing part 21 and the adaptability to the wire 12, ensuring that wires 12 of different specifications can be effectively pre-tightened.

[0057] As Figure 5Each wire drawing unit 32 comprises a bidirectional driving assembly 321 and two guide wheels two 322. The bidirectional driving assembly 321 has two second movement pairs 3211 with opposite movement directions to drive the two guide wheels two 322 to move, so as to realize the wire tightening operation on the corresponding metal wire 12; the movement directions of the two second movement pairs 3211 are parallel to the wire feeding direction or the wire discharging direction of the corresponding metal wire 12, so that the bidirectional driving assembly 321 can drive the two guide wheels two 322 to move in the opposite directions along the extension direction of the metal wire 12, thereby quickly and effectively realizing the wire tightening of the metal wire 12.

[0058] Embodiment two

[0059] Another aspect of the present application also provides a wire tightening method of the wire tightening structure of the multi-wire cutting device, comprising the following steps:

[0060] S1, after the wire feeding of the metal wire 12 is completed, the initial tensioning of the wire feeding drum 11 driving motor is started;

[0061] S2, the tension of each metal wire 12 is monitored in real time through the wire tension sensor 41, and when the tension of any metal wire 12 reaches the first tension threshold, the pressing mechanism 2 is controlled to apply pressure to the metal wire 12 group;

[0062] S3, when the tension of all metal wires 12 reaches the first tension threshold, the pressing mechanism 2 is closed and all wire drawing units 32 are started;

[0063] S4, the tension of the corresponding metal wire 12 is adjusted independently through each wire drawing unit 32, and when the tension of a single metal wire 12 reaches the second tension threshold, the corresponding wire drawing unit 32 is closed;

[0064] S5, when all wire drawing units 32 stop working, it is confirmed that the wire tightening operation is completed.

[0065] The method can accurately and independently control the tension of each metal wire 12 to adapt to the cutting demand, effectively avoid the uneven tension, and greatly improve the cutting precision, quality, production stability and efficiency.

[0066] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A wire-tightening structure for a multi-wire cutting device, characterized in that, include: The cutting mechanism includes two symmetrically arranged wire storage drums, at least two parallel metal wires wound on the two wire storage drums, and a first motor and a second motor that drive the two wire storage drums respectively; A wire pressing mechanism is disposed on the first side of the cutting mechanism, including a wire pressing part that can move along a direction perpendicular to the metal wire and a first moving pair that drives the wire pressing part; A wire drawing mechanism is disposed on the second side of the cutting mechanism opposite to the first side, and includes a fixed base and multiple independent wire drawing units mounted on the fixed base; The tension detection unit includes a wire tension sensor installed on each metal wire, and each wire tension sensor is connected to the same controller, which pre-stores a first tension threshold and a second tension threshold. The controller is configured to perform: When the tension of any metal wire reaches the first tension threshold, the wire pressing mechanism is activated to apply pressure to all metal wires. When the tension of all metal wires reaches or exceeds the first tension threshold, the wire pressing mechanism is stopped and the wire drawing mechanism is started. When the tension of each metal wire reaches the second tension threshold, the corresponding wire drawing unit is cut off one by one.

2. The wire-tightening structure of a multi-wire cutting device according to claim 1, characterized in that: The first motor and the second motor are equipped with synchronous constant speed mode and differential speed adjustment mode, and both are connected to the controller.

3. The wire-tightening structure of a multi-wire cutting device according to claim 1, characterized in that: The wire pressing part includes a mounting base plate and at least two sets of guide wheel groups fixed to the mounting base plate. Each set of guide wheel groups includes two parallel guide wheels. All guide wheels are located on the same plane and are parallel to the plane of the metal wire arrangement.

4. The wire-tightening structure of a multi-wire cutting device according to claim 3, characterized in that: The guide wheel assembly and the metal wire are arranged in a one-to-one correspondence, and the distance between the two guide wheels on the same guide wheel assembly is adjustable.

5. The wire-tightening structure of a multi-wire cutting device according to claim 1, characterized in that: Each of the wire drawing units includes: A bidirectional drive assembly has two second prismatic pairs with opposite directions of motion. Two guide wheels, each mounted on a different second sliding pair.

6. The wire-tightening structure of a multi-wire cutting device according to claim 5, characterized in that: The two second moving pairs are both arranged parallel to the wire feeding or wire exiting direction of the corresponding metal wire, so that the bidirectional drive assembly drives the two guide wheels to move in opposite directions or in the opposite direction along the wire extension direction.

7. A wire-tightening method using the wire-tightening structure of the multi-wire cutting device as described in any one of claims 1-6, characterized in that, Includes the following steps: S1. After the wire is threaded, start the wire storage drum drive motor for initial tensioning; S2. The tension of each metal wire is monitored in real time by a wire tension sensor. When the tension of any metal wire reaches the first tension threshold, the wire pressing mechanism is controlled to apply pressure to the metal wire group. S3. When the tension of all metal wires reaches the first tension threshold, the wire pressing mechanism is closed and all wire drawing units are started. S4. Adjust the tension of the corresponding metal wire independently through each wire drawing unit. When the tension of a single metal wire reaches the second tension threshold, shut down its corresponding wire drawing unit. S5. After all wire drawing units have stopped working, confirm that the wire tightening operation is complete.

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