Semi-automatic wire drawing device and method

Abstract

The present invention belongs to the technical field of wire drawing in a wire drawing machine unit, and specifically relates to a semi-automatic wire drawing device and method, including an active sprocket and a passive sprocket driven by a chain, a waste wire winding roller, and a clamping and cutting device arranged upstream of the waste wire winding roller. The chain is arranged at both ends of the corresponding roller on the wire drawing path, and a wire drawing rod is arranged between the two end chains. By adopting the wire drawing device of the present invention, the wire drawing efficiency is improved, the energy consumption is reduced, and the personal safety of the operator is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of wire drawing in a wire drawing machine unit, and particularly relates to a semi-automatic wire drawing device and method. Background Art

[0002] In the wire drawing production process, such as when producing PP wire or PE wire, wire drawing is usually done manually. Hundreds of single filaments need to pass through the extruder → cold water tank → one-position drawing machine → hot water machine → two-position drawing machine → hot air machine → three-position drawing machine → (hot air machine → four-position drawing machine →) winding machine in turn, and adjacent single filaments must not cross. When passing through the hot water machine (water bath or oil bath) or hot air machine, the high temperature inside the box is not easy to operate, and the temperature will drop. After the wire drawing is completed, it is necessary to wait for the temperature to stabilize before normal production can be carried out. Manual wire drawing consumes energy and time, and the drawing time is long, which poses a safety hazard.

[0003] During the wire drawing process, at least two people are generally required to cooperate in operating the running equipment. If there are insufficient personnel or the personnel lack experience, the wire drawing time will be further prolonged and the risk of burns will increase. Summary of the Invention

[0004] The purpose of the present invention is to solve the technical problems described above and to provide a semi-automatic wire drawing device and method.

[0005] The technical solution of the present invention is:

[0006] A semi-automatic wire drawing device includes an active sprocket and a passive sprocket driven by a chain, a waste wire winding roller, and a clamping and cutting device arranged upstream of the waste wire winding roller. The chain is arranged at both ends of the corresponding roller on the wire drawing path, and a wire drawing rod is arranged between the chains at both ends.

[0007] Here, the wire strips are first collected onto the waste wire winding roller through the wire drawing rod. The main function of the wire drawing rod is to guide and separate the wires, and the wire strips are unfolded through the wire drawing rod to avoid crossing and disorder. The wire drawing rod is provided with multiple grooves to limit the position of a single wire strip, where the number of grooves is not less than the number of wire strips, and is guided to the waste wire winding roller. At the same time, the wire drawing rod is also a guide platform for downstream automatic wire drawing; the function of the clamping and cutting device is mainly to tighten and fix the wire strips when the automatic wire drawing is started, and to cut it when the automatic wire drawing is stopped; the chain is set at both ends of the corresponding roller on the wire drawing path, and its main function is that the wire strip drives the wire drawing rod along the transmission direction through the chain to draw the wire. At the same time, when the wire strips are guided to the corresponding roller, the chain and the wire drawing rod do not affect the rotation of the corresponding roller; the sprocket and the roller are coaxial but move independently of each other and do not affect each other.

[0008] Furthermore, the clamping and cutting device includes a pair of clamping plates and a cutter, primarily used to clamp the wire and control cutting. The clamping plates are provided with a rubber coating on their opposing surfaces. The clamping plates are driven and controlled by pneumatic cylinders, with the rubber coating having a thickness of no less than 5 mm. The cutter is driven and controlled by a hydraulic cylinder, both of which are mounted on a support frame.

[0009] Furthermore, transmission sprockets are respectively provided at both ends of the corresponding rollers on the wire drawing path through bearings, and the chain is provided on the transmission sprockets.

[0010] Here, the drive sprocket and the corresponding roller are coaxial, but the sprocket does not rotate with the corresponding roller. The corresponding rollers here refer to the rollers on the hot water machine and / or the two-position drawing machine and / or the hot air machine and / or the three-position drawing machine and / or the four-position drawing machine in the wire drawing unit, as well as the wire separation rollers installed between the hot water machine, the two-position drawing machine, the hot air machine, the three-position drawing machine, and the four-position drawing machine. Here, the wire separation roller mainly functions to continue to separate or comb the filaments.

[0011] Preferably, the radius of the lead wire rod is smaller than the vertical distance from the center point of the chain thickness to the roller surface, the main purpose of which is to enable the lead wire rod on the chain to pass through the corresponding roller without being affected.

[0012] Preferably, a pressure roller is provided upstream of the termination position of the wire drawing rod, and the pressure roller is installed on the corresponding roller of the wire drawing path. Specifically, the pressure roller is respectively installed on the corresponding rollers at the beginning and end of the first, second, and third drawing machines. After the wire drawing step is completed, the pressure roller is immediately lowered to press the wire to prevent the wire from slipping during further drawing or drawing.

[0013] The present invention also provides a semi-automatic wire drawing method, which uses a semi-automatic wire drawing device and is performed according to the following steps:

[0014] (1) The wire strips are sequentially passed through the wire drawing rod and the clamping and cutting device and then received on the waste wire winding roller;

[0015] (2) The clamping and cutting device clamps the wire strip, and at the same time starts the active sprocket so that the chain drives the wire rod to move along the chain transmission direction;

[0016] (3) When the wire rod drives the wire strip through the pressure roller, the pressure roller presses the wire strip and clamps the cutting device to cut the wire strip, and closes the driving sprocket to stop the chain transmission;

[0017] (4) Lead out the wire strip on the wire rod to complete the wire drawing.

[0018] The positive effects of the present invention are:

[0019] In the present invention, the wire strip is led along the chain transmission direction by the wire drawing rod driven by the chain and the sprocket, and the sprockets are respectively arranged at the two ends of the roller of the corresponding equipment, thereby realizing the automatic wire drawing of the wire strip from the entry end of the wire drawing equipment to the exit end of the wire drawing equipment, realizing the automatic control of unmanned wire drawing, and solving the problem of wire separation and spreading through the wire drawing rod and the wire separation roller. On the whole, the present invention improves the wire drawing efficiency, ensures the personal safety of the operator, and reduces the operation and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of an embodiment of the present invention.

[0021] Figure 2 This is a structural diagram of the present invention when the sprocket and chain drive the wire drawing rod through the last roller of the two-position drawing machine.

[0022] Figure 3 This is a schematic structural diagram of the present invention when the sprocket and chain drive the wire drawing rod through the first roller of the two-position drawing machine.

[0023] Figure 4 It is a structural schematic diagram of the clamping and cutting device of the present invention.

[0024] Figure 5 It is a structural schematic diagram of the wire guide rod of the present invention.

[0025] Figure 6 A schematic structural diagram of another embodiment provided by the present invention.

[0026] In the figure: chain (1), driving sprocket (2), driven sprocket (3), waste silk winding roller (4), roller (5), wire drawing rod (6), clamping and cutting device (7), transmission sprocket (8), wire separation roller (9), pressure roller (10), winding roller (11), silk strip (12), one-position drafting machine (22), water heater (23), two-position drafting machine (24), hot air blower (25), three-position drafting machine (26), a pair of clamping plates (71), cutter (72), rubber coating (73), cylinder (74), hydraulic cylinder (75), support frame (76), bottom knife (77). DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more apparent, the following text will further clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. For the sake of clarity and conciseness, not all features of the actual implementation are described in this specification. However, it should be understood that in the process of developing any such actual embodiment, many implementation-specific decisions must be made to achieve the specific goals of the developers.

[0028] It is also necessary to explain here that the elements and features described in one figure or one embodiment of the present invention can be combined with the elements and features shown in one or more other figures or embodiments. In order to avoid obscuring the present invention due to unnecessary details, only the device structure closely related to the solution according to the present invention is described in the figures and description.

[0029] Example 1: Figure 1 、 Figure 2 and Figure 3 As shown, a semi-automatic wire drawing device is assembled in a wire drawing unit composed of a hot water machine 23, a two-position drawing machine 24 and a wire separation roller 9, including a driving sprocket 2 and a driven sprocket 3 driven by a chain 1, a waste wire winding roller 4 and a clamping and cutting device arranged upstream of the waste wire winding roller. Drive sprockets 8 are respectively arranged at both ends of the roller 5 of the corresponding equipment on the wire drawing path through bearings, wherein the bearings on the drive sprocket are coaxial with the corresponding roller. The equipment here refers to the hot water machine 23 and the two-position drawing machine 24 downstream. The chain 1 is arranged on the drive sprocket 8, and a wire drawing rod 6 is arranged between the chains 1 on both sides. The driving sprocket 2 here is arranged on the two-position drawing machine Below the right side of the stretching machine 24, the driven sprocket 3 is arranged below the left side of the hot water machine 23, the wire separation roller 9 is arranged above the left side of the hot water machine 23, the wire drawing rod 6 is arranged on the chain 1 between the driven sprocket 3 and the wire separation roller 9, the waste wire winding roller 4 and the clamping and cutting device 7 are arranged between the first stretching machine 22 and the hot water machine 23, and the pressure roller 10 can be arranged on the end roller of the second stretching machine 24. In this embodiment, the pressure roller 10 is respectively arranged on the corresponding sticks at the head and tail of the first stretching machine 22 and the second stretching machine 24, wherein a winding roller 11 is also arranged behind the second stretching machine 24, and a wire separation roller 9 is also arranged between the hot water roller 23 and the second stretching machine 24.

[0030] like Figure 4 As shown, the clamping and cutting device comprises a pair of clamping plates 71 and a cutter 72. The opposing surfaces of the clamping plates are provided with a rubber coating 73. The clamping plates are driven and controlled by pneumatic cylinders 74, and the rubber coating on the clamping plates is at least 5 mm thick. The cutter 72 is driven and controlled by a hydraulic cylinder 75, both mounted on a support frame 76. During operation, the upper clamping plate is fixed, while the lower clamping plate is clamped by two pneumatic cylinders. A bottom knife 77 is provided on the side opposite the cutter to cooperate with the cutter 72 in cutting the silk thread.

[0031] The main purpose of the smaller radius of the lead-in rod 6 is to facilitate the lead-in rod on the chain to pass through the corresponding roller.

[0032] During the operation control, the first drawing machine 22, the hot water machine 23, and the second drawing machine 24 in the wire drawing unit are turned on. Among them, the wire strips 12 from the upstream extruder 20 and the cold water tank 21 are manually operated to pass through the first drawing machine 22, the wire drawing rod 6 and the clamping and cutting device in sequence and are then received on the waste wire winding roller 4. The wire drawing rod 6 has the function of separating the wires, such as Figure 5 As shown, the wire strips are arranged from the inside to the outside so that adjacent wire strips do not cross each other and then the wire drawing is started. It should be noted that the structure of the wire separation roller 9 and the wire drawing rod 6 are similar, both of which are used to comb the wire strips.

[0033] Specifically, the semi-automatic wire drawing method uses a semi-automatic wire drawing device and is performed according to the following steps:

[0034] (1) The silk strips 12 from the first drawing machine 22 pass through the wire drawing rod 6 and the clamping and cutting device in sequence and are collected on the waste silk winding roller 4;

[0035] (2) Control the clamping and cutting device to clamp the wire strip, and at the same time start the driving sprocket 2 to make the chain 1 drive the wire rod 6 to move along the chain transmission direction;

[0036] (3) After the wire rod 6 drives the wire to pass through the last pressing roller 10 on the two-position drawing machine 24, the pressing roller 10 is controlled to press the wire, and the clamping and cutting device cuts the wire at the same time, and the driving sprocket 2 is closed to stop the chain transmission;

[0037] (4) The silk strips on the wire drawing rod 6 are drawn out, so that the silk strips are automatically passed through the hot water machine and the two-position drawing machine. The silk strips on the wire drawing rod 6 are drawn out manually and collected on the winding roller 11 to complete the wire drawing.

[0038] During the above-mentioned control process, (1) when the roller speed of the first drawing machine is am / min, such as a is 3 to 15 m / min, and in this embodiment a is 15 m / min, the chain speed is set to a / 2 m / min and the roller speed of the second drawing machine is set to am / min respectively; (2) the semi-automatic wire drawing device and the first drawing machine 22, the water heater 23, and the second drawing machine 24 in the wire drawing unit are independently controlled, that is, when the semi-automatic wire drawing device stops, the first drawing machine 22, the water heater 23, and the second drawing machine 24 in the wire drawing unit do not stop running.

[0039] Example 2: Figure 6 As shown, a semi-automatic wire drawing device is different from the first embodiment in that the present embodiment is assembled in a wire drawing unit consisting of a hot water machine 23, a two-position drawing machine 24, a hot air blower 25, a three-position drawing machine 26 and a wire separation roller 9.

[0040] During operation and control, the first drawing machine 22, the second drawing machine 23, the second drawing machine 24, the hot air blower 25 and the third drawing machine 26 in the wire drawing unit are turned on, wherein the wire strips 12 from the upstream extruder and the cold water tank are manually operated through the first drawing machine 22, the wire drawing rod 6 and the clamping and cutting device and then received on the waste wire winding roller 4, and the pressure rollers 10 are respectively arranged on the corresponding sticks at the head and tail of the first drawing machine 22, the second drawing machine 24 and the third drawing machine 26, wherein a winding roller 11 is also arranged behind the third drawing machine 26, wherein the wire dividing rollers 9 are respectively arranged above the left side of the water heater 23 and between the water heater, the second drawing machine, the hot air blower and the third drawing machine.

[0041] Specifically, the semi-automatic wire drawing method in this embodiment is to use the semi-automatic wire drawing device and operate according to the following steps:

[0042] (1) The silk strips 12 from the first drafting machine 22 are manually passed through the wire drawing rod 6 and the clamping and cutting device and then collected on the waste silk winding roller 4;

[0043] (2) Control the clamping and cutting device to clamp the wire strip, and at the same time start the driving sprocket 2 to make the chain 1 drive the wire rod 6 to move along the chain transmission direction;

[0044] (3) After the wire rod 6 drives the wire to pass through the last pressing roller 10 on the three-position drafting machine 26, the pressing roller 10 is controlled to press the wire, and the clamping and cutting device cuts the wire at the same time, and the driving sprocket 2 is closed to stop the chain transmission, while the three-position drafting machine 26 is still running;

[0045] (4) The silk strips on the wire drawing rod 6 are led out, so that the silk strips are automatically passed through the hot water machine 23, the two-position drawing machine 24, the hot air blower 25, and the three-position drawing machine 26. The silk strips on the wire drawing rod 6 are led out by manual operation and collected on the winding roller 11 to complete the wire drawing.

[0046] In the above-mentioned control process, (1) when the roller speed of the first drawing machine is am / min, such as a is 3 to 15 m / min, in this embodiment a is 3 m / min, the chain speed is set to a / 2 m / min, and the roller speeds of the second drawing machine and the third drawing machine are all am / min; (2) the semi-automatic wire drawing device and the first drawing machine 22, the hot water machine 23, the second drawing machine 24, and the third drawing machine 26 in the wire drawing unit are independently controlled, that is, when the semi-automatic wire drawing device stops, the first drawing machine 22, the hot water machine 23, the second drawing machine 24, the hot air blower, and the third drawing machine 26 in the wire drawing unit do not stop running.

[0047] In this embodiment, the single-position drawing machine 22, the second-position drawing machine 24, and the third-position drawing machine 26 all adopt five-roller drawing, and three-roller and seven-roller drawing can also be used; the present invention is suitable for assembly on all types of hot water machines (hot oil machines), hot air machines (oven) and other heating methods (steam heating, infrared heating, etc.) Box body, including automatic drawing when drawing or heating is required during the production of film.

[0048] While the preferred embodiments of the present invention have been described in detail above, it should be understood that those skilled in the art may make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solution that can be derived by those skilled in the art from the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the prior art shall be within the scope of protection defined by the present claims.

Claims

1. A semi-automatic wire drawing device, characterized in that: It comprises a driving sprocket (2) and a driven sprocket (3) driven by a chain (1), a waste silk winding roller (4), and a clamping and cutting device arranged upstream of the waste silk winding roller, wherein the chain (1) is arranged at both ends of the corresponding roller (5) on the wire drawing path, and a wire drawing rod (6) is arranged between the chains at both ends; The working method of the semi-automatic wire drawing device is carried out as follows: (1) The silk strips are sequentially passed through the wire drawing rod (6) and the clamping and cutting device (7) and then collected on the waste silk winding roller (4); (2) The clamping and cutting device (7) clamps the wire strip and simultaneously starts the driving sprocket (2) so that the chain (1) drives the wire rod (6) to move along the chain transmission direction; (3) When the wire rod (6) drives the wire strip to pass through the pressing roller (10), the pressing roller (10) presses the wire strip, and at the same time, the clamping and cutting device (7) cuts the wire strip, and the driving sprocket (2) is closed to stop the chain transmission; (4) Lead out the silk strip on the wire drawing rod (6) to complete the wire drawing.

2. A semi-automatic wire drawing device according to claim 1, characterized in that: The clamping and cutting device comprises a pair of clamping plates (71) and a cutter (72), and rubber coatings (73) are respectively provided on the opposite surfaces of the pair of clamping plates.

3. A semi-automatic wire drawing device according to claim 1, characterized in that: Transmission sprockets (8) are respectively provided at both ends of the corresponding rollers (5) on the wire drawing path, and the chain (1) is provided on the transmission sprockets (8).

4. A semi-automatic wire drawing device according to claim 1, characterized in that: The radius of the lead-in rod (6) is smaller than the vertical distance from the center point of the chain thickness to the roller surface.

5. The semi-automatic wire drawing device according to claim 1, characterized in that: A pressure roller (10) is provided upstream of the terminal position of the wire drawing rod (6), and the pressure roller (10) is provided on a corresponding roller (5) on the wire drawing path.

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