Safety protection device at wire inlet of heavy wire drawing machine

Abstract

The utility model discloses a safety protection device at a wire inlet of a heavy wire drawing machine, which comprises a fixed plate I and a fixed plate II, a pay-off rack is arranged at the top of the fixed plate I, a wire drawing machine is arranged at the top of the fixed plate II, and an audible and visual alarm is mounted at the top of the wire drawing machine. Limiting sliding grooves are formed in the top of the first fixing plate and the top of the second fixing plate. Two first movable plates driven by a first servo motor are slidably connected into a limiting sliding groove in the first fixing plate. According to the copper rod conveying device, the safety protection effect can be achieved at the exposure stage in the copper rod conveying process, and when a person gets close to any side of the copper rod in the conveying process, the person can be prevented from getting close to any side of the copper rod; according to the large drawing machine, the audible and visual alarm can be used for giving an audible and visual alarm to people approaching the large drawing machine in time, so that the people approaching the large drawing machine are reminded in time and are prompted to be away from the large drawing machine, safety accidents are avoided, and safe production of enterprises is facilitated.

Description

Technical Field

[0001] This utility model relates to the technical field of copper wire drawing devices, specifically a safety protection device at the wire inlet of a large drawing machine. Background Technology

[0002] In the production process of cables and wires, a large drawing machine, also known as a wire drawing machine, is required. Through the wire feeding frame, copper rods with larger diameters are drawn into copper wires through the drawing dies on the drawing machine to meet production needs.

[0003] For example, a horizontal wire drawing machine published in Chinese patent application number CN201820534299.2 mentions: "A frame, a motor, a wire drawing frame, a take-up drum, and a gearbox; a wire drawing die is provided inside the wire drawing frame; a rotating shaft on the gearbox is coaxially rotatably connected to the take-up drum; a stop mechanism is provided between the take-up drum and the gearbox, the stop mechanism including a stop ring that slides along the length of the rotating shaft, a saw tooth 1 with the same helical direction as the rotating shaft at the end of the stop ring away from the gearbox, and a saw tooth 2 that meshes with the saw tooth 1 on the side of the take-up drum opposite to the stop ring; a ring rail is coaxially provided around the outer periphery of the stop ring, and a drive rod is slidably connected inside the ring rail, the drive rod extending to the outside of the frame to form an operating end. This utility model is applicable to metal wire drawing equipment."

[0004] A search of the aforementioned patents reveals that during the wire drawing process, thicker copper rods need to be transported to the wire drawing machine via a wire feeding frame. During this journey from the wire feeding frame to the wire drawing machine, the copper rods are often exposed without any protective measures. Therefore, if any workers or outsiders approach or touch the copper rods during the transport process, it could easily cause a safety accident, which is detrimental to the company's safe production. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a safety protection device at the wire inlet of a large wire drawing machine, comprising a first fixed plate and a second fixed plate. A wire feeding frame is mounted on the top of the first fixed plate, and a wire drawing machine is mounted on the top of the second fixed plate. An audible and visual alarm is installed on the top of the wire drawing machine. Limiting grooves are formed at the top of both the first and second fixed plates. Two movable plates (first type) driven by a servo motor (first type) are slidably connected inside the limiting grooves on the first fixed plate, and two movable plates (second type) driven by a servo motor (second type) are slidably connected inside the limiting grooves on the second fixed plate. Photoelectric switches are mounted on both movable plates (first type), and reflectors are mounted on both movable plates (second type).

[0007] As a further embodiment of this utility model: the servo motor is installed on one side of the fixed plate, the power output shaft of the servo motor is movably inserted into the limiting groove of the fixed plate and is connected to the lead screw; the bottom of the movable plate is fixed with a limiting slider, the limiting slider is slidably connected to both sides inside the limiting groove of the fixed plate, and the lead screw is provided with two opposite threads, and the two opposite threads respectively thread through a limiting slider.

[0008] As a further embodiment of this utility model: the second servo motor is installed on one side of the second fixed plate, the power output shaft of the second servo motor is movably inserted into the limiting slide groove of the second fixed plate and is connected to the second lead screw; the bottom of the second movable plate is fixed with a second limiting slider, the second limiting slider is slidably connected to both sides inside the limiting slide groove of the second fixed plate, and the second lead screw is provided with two opposite threads, and the two opposite threads respectively thread through a second limiting slider.

[0009] As a further embodiment of this utility model: the two photoelectric switches on the first fixed plate correspond one-to-one with the two reflectors on the second fixed plate, and the emitting end of the photoelectric switch faces the reflector.

[0010] As a further embodiment of this utility model: a PLC controller is provided on one side of the wire drawing machine, the photoelectric switch is connected to the PLC controller through a wire, and the audible and visual alarm is connected to the PLC controller through a wire.

[0011] As a further embodiment of this utility model: a support plate 1 is welded to the top of the wire feeding frame, a wire roller 1 is installed on one side of the support plate 1 and a wire roller 2 is installed on the other side, and a support plate 2 can also be detachably installed in the middle and lower part of the wire feeding frame, and a wire roller 3 is installed on the support plate 2, with the wire roller 3 located between the two movable plates 1.

[0012] As a further embodiment of this utility model: the wire drawing machine's inlet is located between two movable plates.

[0013] As a further embodiment of this utility model: two limiting discs for limiting the movement of the line are also installed between the first fixing plate and the second fixing plate, and the line passes through the two limiting discs.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] I. In this application, through the design of movable plate one, movable plate two, photoelectric switch, reflector and sound and light alarm, a safety protection effect can be formed at the exposed stage during the copper rod conveying process. When personnel approach either side of the copper rod during the conveying process, the sound and light alarm can promptly warn the approaching personnel, so that the approaching personnel are promptly reminded and prompted to stay away from the large conveyor, thereby avoiding safety accidents and benefiting the safe production of the enterprise.

[0016] Second, in this application, through the designed servo motor one, servo motor two, movable plate one and movable plate two, the distance between the photoelectric switch and the reflector and the copper rod in the conveying process can be adjusted. This allows enterprises to conveniently set the alarm distance according to the actual situation, so as to make the applicability of the safety protection device better. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the movable plate of this utility model;

[0019] Figure 3 This is a side sectional view of the fixing plate of this utility model.

[0020] The reference numerals and names in the figure are as follows:

[0021] 1. Fixed plate one; 2. Fixed plate two; 3. Wire drawing machine; 4. Wire feeding frame; 401. Support plate one; 402. Wire guide roller one; 403. Wire guide roller two; 404. Support plate two; 405. Wire guide roller three; 5. Limiting plate; 6. Limiting groove; 7. Servo motor one; 701. Servo motor two; 702. Lead screw one; 8. Movable plate one; 801. Movable plate two; 802. Limiting slider one; 9. Photoelectric switch; 10. Reflector; 11. PLC controller; 12. Audible and visual alarm. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-3A safety protection device for the wire inlet of a large wire drawing machine includes a fixed plate 1 and a fixed plate 2. A wire feeding frame 4 is installed on the top of the fixed plate 1, and a wire drawing machine 3 is installed on the top of the fixed plate 2. An audible and visual alarm 12 (model TBJ-150) is installed on the top of the wire drawing machine 3. Limiting grooves 6 are present on the tops of both the fixed plate 1 and the fixed plate 2. Two movable plates 8 driven by a servo motor 17 are slidably connected inside the limiting groove 6 on the fixed plate 1. Similarly, two movable plates 8 driven by a servo motor 18 are slidably connected inside the limiting groove 6 on the fixed plate 2. The motor 701 drives two movable plates 801; each of the two movable plates 801 is equipped with a photoelectric switch 9 of model CPK-TR40MR3, and each of the two movable plates 801 is equipped with a reflector 10 that works with the photoelectric switch 9. A PLC controller 11 of model S7-200 is installed on one side of the wire drawing machine 3. The photoelectric switch 9 is connected to the PLC controller 11 through a wire, and the audible and visual alarm 12 is connected to the PLC controller 11 through a wire. The wire inlet of the wire drawing machine 3 is located between the two movable plates 801.

[0024] Please see Figure 1 , Figure 2 and Figure 3 In this embodiment, a servo motor 7 is installed on one side of a fixed plate 1. The power output shaft of the servo motor 7 is movably inserted into the limiting groove 6 of the fixed plate 1 and is connected to a lead screw 702. A limiting slider 802 is fixed at the bottom of a movable plate 8. The limiting slider 802 is slidably connected to both sides inside the limiting groove 6 of the fixed plate 1. The lead screw 702 is provided with two opposite threads, and the two opposite threads are threaded through a limiting slider 802 respectively.

[0025] Specifically, after the servo motor 7 starts, it can drive the lead screw 702 to rotate through its power output shaft. The rotation of the lead screw 702 drives the two limit sliders 802 to move in the limit grooves 6 of the fixed plate 1. When the two limit sliders 802 move, they can synchronously drive the two movable plates 8 to move, thereby driving the two photoelectric switches 9 on the two movable plates 8 to move, so as to adjust the position of the photoelectric switches 9, making them closer to or further away from the copper rod in the conveying process.

[0026] Please see Figure 1 , Figure 2 and Figure 3In this embodiment, servo motor 2 701 is installed on one side of fixed plate 2. The power output shaft of servo motor 2 701 is movably inserted into the limiting slide groove 6 of fixed plate 2 and is connected to lead screw 2. The bottom of movable plate 2 801 is fixed with limiting slider 2. Limiting slider 2 is slidably connected to both sides inside the limiting slide groove 6 of fixed plate 2. Lead screw 2 is provided with two opposite threads, and the two opposite threads respectively thread through a limiting slider 2.

[0027] Specifically, after the servo motor 701 is started, it can drive the lead screw 2 to rotate through its power output shaft. The rotation of the lead screw 2 drives the two limit sliders 2 to move in the limit groove 6 of the fixed plate 2. When the two limit sliders 2 move, they can synchronously drive the two movable plates 801 to move, thereby driving the two reflectors 10 on the two movable plates 801 to move, so as to adjust the position of the reflectors 10 and make them correspond to the photoelectric switch 9, so that they move closer to or away from the copper rod in the conveying process.

[0028] Please see Figure 1 In this embodiment, the two photoelectric switches 9 on the first fixed plate 1 correspond one-to-one with the two reflectors 10 on the second fixed plate 2, and the emitting end of the photoelectric switch 9 faces the reflector 10.

[0029] Specifically, two photoelectric switches 9 and two reflectors 10 are respectively installed on both sides of the copper rod during the conveying process. When a person approaches either side of the conveying copper rod, the sound and light alarm 12 can be used to issue a warning in time, thereby reminding the person to stay away.

[0030] Please see Figure 1 In this embodiment, a support plate 401 is welded to the top of the wire feeding frame 4. A wire roller 402 is installed on one side of the support plate 401 and a wire roller 403 is installed on the other side. A support plate 404 can also be detachably installed in the middle and lower part of the wire feeding frame 4. A wire roller 405 is installed on the support plate 404 and is located between two movable plates 8.

[0031] Specifically, the copper rod can be transported through the above structure, achieving a certain degree of straightening effect during the transport process, and finally conveyed to the inlet of the wire drawing machine 3 by the guide roller 3 405.

[0032] Please see Figure 1 In this embodiment, two limiting discs 5 for limiting the line body are also installed between the first fixing plate 1 and the second fixing plate 2, and the line body passes through the two limiting discs 5.

[0033] Specifically, the designed limiting plate 5 can guide and limit the copper rod located between the wire feeding frame 4 and the wire drawing machine 3 to a certain extent, so that the copper rod can enter the wire drawing machine 3 more stably.

[0034] When using:

[0035] The copper rod is conveyed to the wire drawing machine 3 through the wire feeding frame 4 for wire drawing. When a person approaches the copper rod during the conveying process (on either side), the person will block the light path between the photoelectric switch 9 and the reflector 10. This will activate the sound and light alarm 12 through the PLC controller 11. The sound and light alarm 12 will emit a warning sound and light to remind the person who is approaching, so that the person who is approaching will quickly move away from the position, thereby avoiding safety accidents and ensuring safe production.

[0036] When it is necessary to change the distance between the photoelectric switch 9, the reflector 10 and the copper rod in the conveying process, the operator can start the servo motor 7 and the servo motor 701. The servo motor 7 drives the lead screw 702 to rotate, and the servo motor 701 drives the lead screw 2 to rotate. The lead screw 702 drives the two movable plates 8 to move closer or further apart, and the lead screw 2 drives the two movable plates 801 to move closer or further apart. When the two movable plates 8 move, they can drive the two photoelectric switches 9 to move closer or further away from the copper rod in the conveying process. Similarly, when the two movable plates 801 move, they can drive the two reflectors 10 to move closer or further away from the copper rod in the conveying process and realign with the corresponding photoelectric switches 9.

[0037] It should be noted that since the copper rod is exposed during the conveying stage between the wire drawing machine 3 and the wire feeding frame 4, that is, between the wire output side of the wire feeding frame 4 and the wire input side of the wire drawing machine 3, this safety protection device is installed here to provide timely audible and visual warnings to people who are close by, so as to avoid safety accidents.

[0038] In special circumstances (such as production requirements), in addition to the above-mentioned methods of providing audible and visual warnings to approaching personnel, the PLC controller 11 can also be connected to the wire drawing machine 3. When the light path between the photoelectric switch 9 and the reflector 10 is blocked (i.e., when someone approaches), the PLC controller 11 can also send a signal to the wire drawing machine 3, thereby achieving both audible and visual warnings and emergency shutdown to avoid safety accidents. In other words, if an alarm is triggered directly when someone approaches, the wire drawing machine 3 will not stop, and the equipment can operate normally. However, if the wire drawing machine 3 is stopped even when an alarm is triggered, the equipment will stop, which will affect production. Therefore, the specific method to be used can be set according to the actual production requirements.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A safety protection device at the wire inlet of a large wire drawing machine, comprising a first fixing plate (1) and a second fixing plate (2), wherein a wire feeding frame (4) is provided on the top of the first fixing plate (1), and a wire drawing machine (3) is provided on the top of the second fixing plate (2), characterized in that, The top of the wire drawing machine (3) is equipped with an audible and visual alarm (12), and the top of the first fixing plate (1) and the top of the second fixing plate (2) are both equipped with limit grooves (6). The limiting groove (6) on the fixed plate one (1) is slidably connected to two movable plates one (8) driven by servo motor one (7), and the limiting groove (6) on the fixed plate two (2) is slidably connected to two movable plates two (801) driven by servo motor two (701). Both movable plates (8) are equipped with photoelectric switches (9), and both movable plates (801) are equipped with reflectors (10).

2. The safety protection device at the inlet of a large traction machine according to claim 1, characterized in that, The servo motor 1 (7) is installed on one side of the fixed plate 1 (1), and the power output shaft of the servo motor 1 (7) is movably inserted into the limiting slide groove (6) of the fixed plate 1 (1) and is connected to the lead screw 1 (702). The bottom of the movable plate (8) is fixed with a limiting slider (802). The limiting slider (802) is slidably connected to both sides of the limiting groove (6) inside the fixed plate (1). The lead screw (702) is provided with two opposite threads, and the two opposite threads respectively thread through a limiting slider (802).

3. The safety protection device at the inlet of a large traction machine according to claim 1, characterized in that, The second servo motor (701) is installed on one side of the second fixed plate (2). The power output shaft of the second servo motor (701) is movably inserted into the limiting slide groove (6) of the second fixed plate (2) and is connected to the second lead screw. The bottom of the movable plate 2 (801) is fixed with a limiting slider 2. The limiting slider 2 is slidably connected to both sides of the limiting groove (6) inside the fixed plate 2 (2). The lead screw 2 is provided with two opposite threads, and the two opposite threads respectively thread through a limiting slider 2.

4. The safety protection device at the inlet of a large traction machine according to claim 1, characterized in that, The two photoelectric switches (9) on the first fixed plate (1) correspond one-to-one with the two reflectors (10) on the second fixed plate (2), and the emitting end of the photoelectric switch (9) faces the reflector (10).

5. A safety protection device at the inlet of a large traction machine according to claim 1, characterized in that, A PLC controller (11) is provided on one side of the wire drawing machine (3). The photoelectric switch (9) is connected to the PLC controller (11) through a wire, and the sound and light alarm (12) is connected to the PLC controller (11) through a wire.

6. A safety protection device at the inlet of a large traction machine according to claim 1, characterized in that, The top of the wire feeding frame (4) is welded with a support plate 1 (401). A wire roller 1 (402) is installed on one side of the support plate 1 (401) and a wire roller 2 (403) is installed on the other side. A support plate 2 (404) can also be detachably installed in the middle and lower part of the wire feeding frame (4). A wire roller 3 (405) is installed on the support plate 2 (404) and the wire roller 3 (405) is located between two movable plates 1 (8).

7. A safety protection device at the inlet of a large traction machine according to claim 1, characterized in that, The wire drawing machine (3) has its inlet located between two movable plates (801).

8. A safety protection device at the inlet of a large traction machine according to claim 1, characterized in that, Two limiting discs (5) for limiting the line body are also installed between the first fixing plate (1) and the second fixing plate (2), and the line body passes through the two limiting discs (5).

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