Alarm device and alarm method for steel cord dry-tensile fracture

Abstract

The invention relates to the technical field of steel cord production, in particular to a steel cord dry-pull wire breakage alarm device and method, and the device comprises connecting parts which are arranged on the outer wall of each die box, steel wires penetrate through the die boxes, and the diameter of the steel wires is reduced through wire drawing dies arranged in the die boxes; the first end of the pivoting component is rotationally connected to the connecting component, and the rotating axis of the pivoting component is perpendicular to the conveying direction of the steel wire; the first end of the pressing rod is connected to the second end of the pivoting component, and the second end of the pressing rod extends in the steel wire conveying direction. The wire breakage alarm device provided by the invention is designed between each die box and a winding drum in a dry drawing process, the state of a steel wire between the die box and the winding drum is detected, the steel wire can be pressed through the wire pressing component, the jumping amplitude of the steel wire is inhibited, and meanwhile, the jumping and position conditions of the steel wire are fed back by utilizing the wire pressing component; traction of the steel wire can be stopped in time, the broken wire is welded and repaired, re-threading is avoided, and the dry drawing production efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel cord production, and in particular to a steel cord dry-drawn wire break alarm device and an alarm method. Background Art

[0002] The production of steel cord involves multiple processes such as dry drawing, electroplating, wet drawing, and stranding. Large and medium drawing belong to the dry drawing process. The dry drawing process is the process of drawing the pretreated steel wire through a series of dies. It is drawn to the desired diameter through dies of different diameters. For example, when reducing the diameter of the steel wire from a larger size (such as 5.5mm) to the required smaller size (such as 1.5mm~2.3mm), each reduction in size requires a specific die for diameter reduction. After entering each die, the steel wire will pass through a reel and be pulled into the next die through the reel.

[0003] If the wire breaks during the dry pulling process, the wire take-up machine will continue to take up the wire, which will cause all the accumulated wire on the reel to be taken up. If the broken wire cannot be discovered in time, the operator will need to rethread the wire, affecting efficiency. Therefore, how to discover the broken wire in the dry pulling process in time is an urgent problem to be solved. Summary of the invention

[0004] In view of the technical problems existing in the dry-pulling process of steel cords in the prior art, the first aspect of the present invention provides a steel cord dry-pulling wire break alarm device, comprising:

[0005] A connecting component is arranged on the outer wall of each mold box, the steel wire passes through the mold box, and the diameter of the steel wire is reduced by a wire drawing die arranged in the mold box;

[0006] A pivoting member, a first end of which is rotatably connected to the connecting member, wherein the rotation axis of the pivoting member is perpendicular to the conveying direction of the steel wire;

[0007] A pressure rod, a first end of which is connected to the second end of the pivoting member, and a second end of which extends in the direction of the wire conveying;

[0008] A wire pressing component connected to the second end of the pressure rod and in contact with the steel wire, wherein the wire pressing component can rotate relative to the pressure rod;

[0009] a baffle connected to the pivot member;

[0010] A photoelectric sensor is arranged on one side of the mold box, the photoelectric sensor emits a light beam in a preset direction, and generates an action signal when the light beam is blocked;

[0011] Alarm for issuing disconnection alarm and jumper alarm;

[0012] A controller, connected to the photoelectric sensor and the alarm, and controlling the alarm state of the alarm according to the action signal output by the photoelectric sensor;

[0013] The contact part between the wire pressing component and the steel wire is located between the mold box and the reel, and the mold box and the reel are arranged at intervals along the direction of steel wire conveying;

[0014] The wire pressing component at the second end of the pressure rod floats up and down synchronously with the swing of the steel wire, so that the pivoting component at the first end of the pressure rod rotates together with the baffle plate at a predetermined angle, and when the baffle plate rotates, it blocks and unblocks the light beam emitted by the photoelectric sensor, so that the output signal of the photoelectric sensor changes;

[0015] The controller is configured to control the alarm to issue a disconnection alarm or a jumper alarm according to the frequency change and time of the action signal output by the photoelectric sensor.

[0016] Preferably, within a predetermined period T, when the number of times the photoelectric sensor outputs an action signal is greater than a preset value, the controller controls the alarm to issue a jumper alarm.

[0017] Preferably, within a predetermined period T, when the photoelectric sensor continuously outputs an action signal and the duration is greater than a preset value, the controller controls the alarm to issue a disconnection alarm.

[0018] Preferably, the controller controls all the reels to stop rotating.

[0019] Preferably, when the steel wire is transported between the two mold boxes in a stable state, the height of the wire pressing component is defined as H0, and when the wire pressing component exceeds the height range of H1 to H2, the steel wire is in a jumper state, wherein H1 is lower than H0 and H2 is higher than H0;

[0020] The baffle includes an extension plate and a shielding plate, wherein the shielding plate is configured not to shield the light beam emitted by the photoelectric sensor when the position of the wire pressing component is between H1 and H2, and to shield the light beam emitted by the photoelectric sensor when the position of the wire pressing component exceeds the range of H1 and H2.

[0021] Preferably, the shielding plate is provided with an opening, and the opening is provided with a first edge and a second edge. When the position of the wire pressing component is lower than H1, the first edge of the opening blocks the light beam emitted by the photoelectric sensor, and when the position of the wire pressing component is higher than H2, the second edge of the opening blocks the light beam emitted by the photoelectric sensor.

[0022] Preferably, the pressure rod is configured to be L-shaped, including a first rod body and a second rod body connected to each other, the second rod body is perpendicular to the conveying direction of the steel wire, and the wire pressing component is sleeved on the outer wall of the second rod body.

[0023] Preferably, the wire pressing component includes a weight sleeve and a bearing, the weight sleeve is connected to the second rod body through the bearing, and the weight sleeve is pressed above the steel wire.

[0024] Preferably, a first limiting structure is provided on the connecting component, and a second limiting structure is provided on the pressure rod. When the pressure rod swings upward until the second limiting structure is connected to the first limiting structure, the pressure rod remains in this position, and the wire pressing component is located above the mold box.

[0025] The second aspect of the present invention proposes a technical solution, a steel cord dry wire break alarm method, using the above-mentioned steel cord dry wire break alarm device, comprising the following steps:

[0026] Step 1: Lift all the pressing rods upwards so that the pressing parts are above the mold box;

[0027] Step 2: Pass the steel wire through all the mold boxes and reels, and lower the pressing rod so that the pressing part is on the surface of the steel wire;

[0028] Step 3, the steel wire is driven forward by the reel, the wire drawing die in the die box is used to dry-draw the steel wire, and the output signal of the photoelectric sensor is continuously detected by the controller;

[0029] Step 4: Control the alarm and the state of the reel according to the output signal of the photoelectric sensor until the wire drawing is completed;

[0030] Wherein; in step 4, within a predetermined period T, when the number of times the photoelectric sensor outputs an action signal is greater than a preset value, the controller controls the alarm to issue a jumper alarm;

[0031] Within a predetermined period T, the photoelectric sensor continuously outputs an action signal, and when the duration is greater than a preset value, the controller controls the alarm to issue a wire break alarm and controls the reel to stop rotating. After the wire is broken by manual welding, the reel is restarted to continue wire drawing.

[0032] Compared with the prior art, the advantages of the present invention are:

[0033] The wire break alarm device proposed in the present invention is designed between each mold box and reel in the dry-drawing process to detect the state of the steel wire between the mold box and the reel. The device mainly includes a pressure rod, a wire pressing component and an alarm component based on a photoelectric sensor. The steel wire can be pressed by the wire pressing component to suppress the amplitude of the steel wire jump. At the same time, the wire pressing component is used to feedback the jump and position of the steel wire. A wire jump alarm can be generated according to the jump of the steel wire, which is beneficial for workers to adjust and optimize the current dry-drawing process. At the same time, a wire break alarm is also generated according to the position of the steel wire, which is beneficial to stop the pulling of the steel wire in time, and weld and repair the broken wire to avoid re-threading, thereby improving the dry-drawing production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in various figures may be represented by the same reference numeral. For clarity, not every component is labeled in every figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, in which:

[0035] Figure 1 It is a schematic diagram of the position of the steel cord dry-pulling wire break alarm device shown in the present invention arranged between the mold box and the reel;

[0036] Figure 2 It is a structural schematic diagram of a steel cord dry-pulling wire break alarm device shown in the present invention;

[0037] Figure 3 It is a structural schematic diagram of the pressure rod shown in the present invention;

[0038] Figure 4 is a schematic structural diagram of the first and second limiting structures shown in the present invention;

[0039] Figure 5 a is a schematic diagram of the pressure rod in the lifted state shown in the present invention;

[0040] Figure 5 b is Figure 5 Schematic diagram of the relative position of the light beam emitted by the photoelectric sensor and the shielding plate when the pressure rod is in the position shown in a;

[0041] Figure 6 a is a schematic diagram of the pressure rod shown in the present invention when it is in a normal position;

[0042] Figure 6 b is Figure 6 Schematic diagram of the relative position of the light beam emitted by the photoelectric sensor and the shielding plate when the pressure rod is in the position shown in a;

[0043] Figure 7 a is a schematic diagram of the pressure rod shown in the present invention swinging upward;

[0044] Figure 7 b is Figure 7 Schematic diagram of the relative position of the light beam emitted by the photoelectric sensor and the shielding plate when the pressure rod is in the position shown in a;

[0045] Figure 8 a is a schematic diagram of the pressure rod shown in the present invention swinging downward;

[0046] Figure 8 b is Figure 8 Schematic diagram of the relative position of the light beam emitted by the photoelectric sensor and the shielding plate when the pressure rod is in the position shown in a;

[0047] Fig. 9 a is a schematic diagram of the position of the pressure rod when the steel wire is broken as shown in the present invention;

[0048] Fig. 9 b is Fig. 9 Schematic diagram of the relative position of the light beam emitted by the photoelectric sensor and the shielding plate when the pressure rod is in the position shown in a; DETAILED DESCRIPTION

[0049] In order to better understand the technical content of the present invention, specific embodiments are given and described as follows in conjunction with the accompanying drawings.

[0050] Combination Figure 1 As shown, the first aspect of the present invention proposes a steel cord dry-drawn wire breakage alarm device, comprising a connecting component 10, a pivot component 20, a pressure rod 30, a wire pressing component 40, a baffle 50, a photoelectric sensor 60, an alarm and a controller. The alarm device is used in the dry-drawing process of the steel wire. In the dry-drawing process, the steel wire needs to pass through a plurality of die boxes 100, and the diameter of the steel wire 101 is reduced by wire drawing dies of different diameters arranged in the die boxes 100. Between every two die boxes 100, a reel 200 is arranged for winding and drawing the steel wire 101. The alarm device can monitor the state of the steel wire between every two die boxes 100, especially after monitoring the breakage of the wire, the reel 200 can be controlled to stop rotating in time to facilitate the staff to re-weld the steel wire and avoid the operation of re-threading.

[0051] Combination Figure 2 As shown, the connecting component 10 is arranged on the outer wall of each mold box 100 , the first end of the pivoting component 20 is rotatably connected to the connecting component 10 , and the rotation axis of the pivoting component 20 is perpendicular to the conveying direction of the steel wire 101 .

[0052] Optionally, the connecting component 10 can be a metal plate, which can be fixed to the surface of the mold box 100 by screws. A rotating shaft is also connected to the surface of the metal plate by screws. The pivoting component 20 can be a rotating sleeve with a bearing, which is sleeved on the outer wall of the rotating shaft so that the rotating sleeve and the rotating shaft can rotate relative to each other.

[0053] In this way, the rotation resistance between the rotating sleeve and the rotating shaft is small and the rotation is flexible.

[0054] Furthermore, the first end of the pressure rod 30 is connected to the second end of the pivot component 20, and the second end extends in the conveying direction of the steel wire 101. The wire pressing component 40 is connected to the second end of the pressure rod 30 and contacts the steel wire 101. The wire pressing component 40 can rotate relative to the pressure rod 30.

[0055] The contact portion between the wire pressing component 40 and the steel wire 101 is located between the mold box 100 and the reel 200 , and the mold box 100 and the reel 200 are arranged at intervals along the conveying direction of the steel wire 101 .

[0056] When the steel wire 101 is continuously conveyed forward, the steel wire 101 contacts the surface of the wire pressing component 40, and the wire pressing component 40 rotates accordingly to reduce the friction on the steel wire 101. When the steel wire 40 swings up and down, the pressure rod 30 swings synchronously following the up and down swing of the steel wire.

[0057] Furthermore, the baffle 50 is connected to the pivoting member 20, and the photoelectric sensor 60 is disposed on one side of the mold box 100, especially below the baffle 50. The photoelectric sensor 60 emits a light beam in a preset direction and generates an action signal when the light beam is blocked.

[0058] It can be understood that the wire pressing component 40 at the second end of the pressure rod 30 floats up and down synchronously with the swing of the steel wire 101, so that the pivot component 20 at the first end of the pressure rod 30 rotates a predetermined angle together with the baffle 50. When the baffle 50 rotates, it produces a blocking and non-blocking state with the light beam emitted by the photoelectric sensor 60, causing the output signal of the photoelectric sensor 60 to change.

[0059] That is, as the pressure rod 30 swings, the baffle 50 also produces a corresponding displacement. When the baffle 50 moves to the light path emitted by the photoelectric sensor 60, it blocks the light beam of the photoelectric sensor 60, and the photoelectric sensor 60 generates an action signal. When the baffle 50 moves out of the light path, the action signal of the photoelectric sensor 60 disappears.

[0060] In this way, the conveying state of the steel wire 101, especially the jumping state and whether the wire is broken, can be judged based on the action signal of the above-mentioned photoelectric sensor 60. By setting a wire pressing component 40 between the mold box 100 and the reel 200, the conveying state of the steel wire 101 between each mold box 100 and the reel 200 can be judged.

[0061] Furthermore, the alarm is used to issue a disconnection alarm and a jumper alarm. The controller is connected to the photoelectric sensor 60 and the alarm, and controls the alarm state of the alarm according to the action signal output by the photoelectric sensor 60.

[0062] Specifically, the controller is configured to control the alarm to issue a disconnection alarm or a jumper alarm according to the frequency change and time of the action signal output by the photoelectric sensor 60 .

[0063] Since wire breakage is related to wire jitter jumpering, there is a greater chance of wire breakage after wire jumpering. Therefore, wire jumper monitoring is also one of the early warning methods for wire breakage. Therefore, within a predetermined period T, if the number of times the photoelectric sensor 60 outputs an action signal is greater than a preset value, the controller controls the alarm to issue a wire jumper alarm.

[0064] In a specific embodiment, the duration of each cycle is set to 10s, and the preset value is 5 times, that is, within 10s, when the light beam emitted by the photoelectric sensor 60 is blocked by the baffle 50 and moved out and repeated five times, it means that the steel wire 101 has 5 large swings, and the alarm sends out a jumper alarm. Workers can check the drawing status of the steel wire 101 according to the alarm prompts, and check whether the drawing mold, drawing powder, etc. are normal.

[0065] Furthermore, within a predetermined period T, when the photoelectric sensor 60 continuously outputs an action signal and the duration is greater than a preset value, the controller controls the alarm to issue a disconnection alarm.

[0066] For example, the duration of each cycle is set to 10s. When the photoelectric sensor 60 continuously outputs an action signal for more than 3s, that is, the light beam emitted by the photoelectric sensor 60 is blocked by the baffle 50 for 3s, the controller controls the alarm to issue a disconnection alarm.

[0067] In a preferred embodiment, when the controller controls the alarm to send out the wire break alarm, all the reels 200 stop rotating. In this way, the reel 200 can be prevented from continuously winding the steel wire 101, so that the staff can weld the position of the broken wire again and avoid the threading operation again.

[0068] Combination Figure 2 and Figure 3 As shown, the pressing rod 30 is configured to be L-shaped, including a first rod body 30a and a second rod body 30b connected to each other, the second rod body 30b is perpendicular to the conveying direction of the steel wire 101, and the wire pressing component 40 is sleeved on the outer wall of the second rod body 30b. The wire pressing component 40 includes a counterweight sleeve and a bearing, the counterweight sleeve is connected to the second rod body 30b through the bearing, and the counterweight sleeve is pressed on the top of the steel wire 101.

[0069] In this way, the pressing effect of the wire pressing component 40 on the steel wire 101 can reduce the amplitude of wire jump of the steel wire 101, so as to prevent the steel wire 101 from breaking when it swings greatly.

[0070] In a specific embodiment, the counterweight sleeve is configured as an annular sleeve, which is connected to the second rod body 30b through a bearing, which can reduce the resistance to the rotation of the annular sleeve and make rolling friction between the annular sleeve and the steel wire 101, so that the steel wire 101 will not be scratched by the annular sleeve.

[0071] Before the steel wire 101 is dry-drawn, especially when the steel wire 101 is manually passed through each mold box 100, the wire pressing component 40 and the pressure rod 30 should be arranged at a higher height. After the steel wire 101 is threaded, the wire pressing component 40 is placed above the steel wire 101. In order to facilitate this operation, the wire pressing component 40 should be able to be easily fixed to a suitable height.

[0072] Combination Figure 4 , Figure 5 a and Figure 5 As shown in b, a first limiting structure 12 is provided on the connecting component 10, and a second limiting structure 31 is provided on the pressure rod 30. When the pressure rod 30 swings upward until the second limiting structure 31 is connected to the first limiting structure 12, the pressure rod 30 remains in this position, and the wire pressing component 40 is located above the mold box 100.

[0073] In an optional embodiment, the first limiting structure 12 is connected to the surface of the metal plate through an L-shaped plate 11, and the first limiting structure 12 is provided with a slot 121, and a metal ball 122 is provided on both sides of the slot 121, and a spring 123 is provided on one side of the metal ball 122. The second limiting structure 31 is designed as a protruding structure and is provided with a groove 311 that cooperates with the metal ball 122. When the protruding structure is inserted into the slot 121, the metal ball 122 enters the groove 311, so that the second limiting structure 31 and the first limiting structure are fixed to each other. At this time, the pressure rod 30 remains in this position.

[0074] In other embodiments, the first limiting structure 12 and the second limiting structure 31 may be permanent magnet structures that attract each other.

[0075] This is helpful to keep the pressing rod 30 in a suitable position when the steel wire 101 is threaded, and to press the wire pressing component 40 on the surface of the steel wire 101 after the threading is completed.

[0076] Combination Figure 6 a and Figure 6 As shown in b, when the steel wire 101 is transported between the two mold boxes 100 in a stable state, the height of the wire pressing component 40 is defined as H0. When the wire pressing component 40 exceeds the height range of H1 to H2, the steel wire 101 is in a jumper state, wherein H1 is lower than H0 and H2 is higher than H0.

[0077] Optionally, the heights of H1 and H2 may be set according to the spacing between the two mold boxes 100, etc. Optionally, H1 is three centimeters lower than H0, and H2 is three centimeters higher than H0.

[0078] Furthermore, the baffle 50 includes an extension plate 51 and a shielding plate 52. The shielding plate 52 is configured not to block the light beam emitted by the photoelectric sensor 60 when the position of the wire pressing component 40 is between H1 and H2, and to block the light beam emitted by the photoelectric sensor 60 when the position of the wire pressing component 40 exceeds the range of H1 to H2.

[0079] In this way, when the steel wire 101 jumps up and down and the amplitude exceeds three centimeters, the upward position of the wire pressing component 40 exceeds H1 and the downward position exceeds H2. At this time, the light beam emitted by the photoelectric sensor 60 is blocked by the shielding plate 52, and the photoelectric sensor 60 generates an action signal.

[0080] Combination Figure 7 As shown in a, 7b, 8a, and 8b, the shielding plate 52 is provided with an opening 53, and the opening 53 is provided with a first edge and a second edge. When the position of the wire pressing component 40 is lower than H1, the first edge of the opening 53 (shown as the left side of the opening 53) blocks the light beam emitted by the photoelectric sensor 60, and when the position of the wire pressing component 40 is higher than H2, the second edge of the opening 53 (shown as the right side of the opening 53) blocks the light beam emitted by the photoelectric sensor 60.

[0081] It should be understood that when the steel wire 101 swings up and down during jumper operation, the photoelectric sensor 60 outputs an action signal intermittently. Whenever the light beam hits the opening 53, no action signal is output. Whenever the edge of the opening 53 blocks the light beam, an action signal is output. Therefore, the frequency of the swinging can be determined by the frequency of the action signal output.

[0082] Optionally, by controlling the width of the opening 53, the preset heights of H1 and H2 can be changed. When the width of the opening 53 is wider, the difference between H1 and H2 and H0 is greater. When the width of the opening 53 is narrower, the difference between H1 and H2 and H0 is smaller, and the sensitivity to jumper detection is higher.

[0083] Combination Fig. 9 As shown in a and 9b, when the steel wire 101 is broken, the shielding plate 52 at this time continuously blocks the light beam emitted by the photoelectric sensor 60, and the photoelectric sensor 60 continuously outputs the action signal without disappearing. Therefore, the sensitivity of the broken wire alarm can be adjusted according to the duration of the continuous output of the action signal.

[0084]

Steel cord dry wire break alarm method

[0085] The second aspect of the present invention proposes a technical solution, a steel cord dry wire break alarm method, using the above-mentioned steel cord dry wire break alarm device, comprising the following steps:

[0086] Step 1: lift all the pressing rods 30 upwards so that the pressing component 40 is above the mold box 100;

[0087] Step 2: Pass the steel wire 101 through all the mold boxes 100 and the reel 200, and lower the pressing rod 30 so that the pressing component 40 is on the surface of the steel wire 101;

[0088] Step 3: The steel wire 101 is driven forward by the reel 200, and the steel wire 101 is dry-drawn by the wire drawing die in the die box 100, and the output signal of the photoelectric sensor 60 is continuously detected by the controller;

[0089] Step 4: Control the alarm and the state of the reel 200 according to the output signal of the photoelectric sensor 60 until the wire drawing is completed;

[0090] Wherein; in step 4, within a predetermined period T, when the number of times the photoelectric sensor 60 outputs an action signal is greater than a preset value, the controller controls the alarm to issue a jumper alarm;

[0091] Within the predetermined period T, the photoelectric sensor 60 continuously outputs an action signal, and when the duration is greater than the preset value, the controller controls the alarm to issue a wire break alarm and controls the reel 200 to stop rotating. After the wire is broken by manual welding, the reel 200 is restarted to continue wire drawing.

[0092] In a specific embodiment, the duration of each cycle is set to 10s, and the preset value is 5 times, that is, within 10s, when the light beam emitted by the photoelectric sensor 60 is blocked by the baffle 50 and moved out and repeated five times, it means that the steel wire 101 has 5 large swings, and the alarm sends out a jumper alarm. Workers can check the drawing status of the steel wire 101 according to the alarm prompts, and check whether the drawing mold, drawing powder, etc. are normal.

[0093] Furthermore, within a predetermined period T, when the photoelectric sensor 60 continuously outputs an action signal and the duration is greater than a preset value, the controller controls the alarm to issue a disconnection alarm.

[0094] For example, the duration of each cycle is set to 10s. When the photoelectric sensor 60 continuously outputs an action signal for more than 3s, that is, the light beam emitted by the photoelectric sensor 60 is blocked by the baffle 50 for 3s, the controller controls the alarm to issue a disconnection alarm.

[0095] In a preferred embodiment, when the controller controls the alarm to send out the wire break alarm, all the reels 200 stop rotating. In this way, the reel 200 can be prevented from continuously winding the steel wire 101, so that the staff can weld the position of the broken wire again and avoid the threading operation again.

[0096] In combination with the above embodiments, the broken wire alarm device proposed in the present invention is designed between each mold box and reel in the dry pulling process to detect the state of the steel wire between the mold box and the reel. The device mainly includes a pressure rod, a wire pressing component and an alarm component based on a photoelectric sensor. The steel wire can be pressed by the wire pressing component to suppress the amplitude of the steel wire jump. At the same time, the wire pressing component is used to feedback the jump and position of the steel wire. A wire jump alarm can be generated according to the jump of the steel wire, which is beneficial for workers to adjust and optimize the current dry pulling process. At the same time, a wire break alarm is also generated according to the position of the steel wire, which is beneficial to stop the pulling of the steel wire in time, and weld and repair the broken wire to avoid re-threading, thereby improving the dry pulling production efficiency.

[0097] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A steel cord dry wire break alarm device, characterized in that: include: A connecting component (10) is arranged on the outer wall of each mold box (100), the steel wire (101) passes through the mold box (100), and the diameter of the steel wire (101) is reduced by a wire drawing die arranged in the mold box (100); A pivoting member (20), a first end of which is rotatably connected to the connecting member (10), and a rotation axis of the pivoting member (20) is perpendicular to a conveying direction of the steel wire (101); A pressure rod (30), a first end of which is connected to a second end of the pivoting member (20), and a second end of which extends in a conveying direction of the steel wire (101); A wire pressing component (40) connected to the second end of the pressure rod (30) and in contact with the steel wire (101), wherein the wire pressing component (40) is rotatable relative to the pressure rod (30); a baffle (50) connected to the pivot member (20); A photoelectric sensor (60) is arranged on one side of the mold box (100), wherein the photoelectric sensor (60) emits a light beam in a preset direction and generates an action signal when the light beam is blocked; Alarm for issuing disconnection alarm and jumper alarm; a controller connected to the photoelectric sensor (60) and the alarm, and controlling the alarm state of the alarm according to an action signal output by the photoelectric sensor (60); The contact portion between the wire pressing component (40) and the steel wire (101) is located between the mold box (100) and the reel (200), and the mold box (100) and the reel (200) are arranged at intervals along the conveying direction of the steel wire (101); The wire pressing component (40) at the second end of the pressure rod (30) floats up and down synchronously with the swing of the steel wire (101), so that the pivoting component (20) at the first end of the pressure rod (30) and the baffle (50) rotate by a predetermined angle, and when the baffle (50) rotates, the light beam emitted by the photoelectric sensor (60) is blocked or not blocked, so that the output signal of the photoelectric sensor (60) changes; The controller is configured to control the alarm to issue a disconnection alarm or a jumper alarm according to the frequency change and time of the action signal output by the photoelectric sensor (60).

2. The steel cord dry wire break alarm device according to claim 1, characterized in that: When the number of times the photoelectric sensor (60) outputs an action signal is greater than a preset value within a predetermined period T, the controller controls the alarm to issue a jumper alarm.

3. The steel cord dry wire break alarm device according to claim 1, characterized in that: When the photoelectric sensor (60) continuously outputs an action signal within a predetermined period T and the duration is greater than a preset value, the controller controls the alarm to issue a disconnection alarm.

4. The steel cord dry wire break alarm device according to claim 3, characterized in that: The controller controls all the reels (200) to stop rotating.

5. The steel cord dry wire break alarm device according to any one of claims 1 to 4, characterized in that: It is defined that when the steel wire (101) is transported between the two mold boxes (100) in a stable state, the height of the wire pressing component (40) is H0, and when the wire pressing component (40) exceeds the height range of H1 to H2, the steel wire (101) is in a jumper state, wherein H1 is lower than H0 and H2 is higher than H0; The baffle (50) comprises an extension plate (51) and a shielding plate (52), wherein the shielding plate (52) is configured not to shield the light beam emitted by the photoelectric sensor (60) when the position of the wire pressing component (40) is between H1 and H2, and to shield the light beam emitted by the photoelectric sensor (60) when the position of the wire pressing component (40) exceeds the range of H1 to H2.

6. The steel cord dry wire break alarm device according to claim 5, characterized in that: An opening (53) is provided on the shielding plate (52), and the opening (53) is provided with a first edge and a second edge. When the position of the wire pressing component (40) is lower than H1, the first edge of the opening (53) blocks the light beam emitted by the photoelectric sensor (60), and when the position of the wire pressing component (40) is higher than H2, the second edge of the opening (53) blocks the light beam emitted by the photoelectric sensor (60).

7. The steel cord dry wire break alarm device according to claim 1, characterized in that: The pressing rod (30) is configured to be L-shaped, and comprises a first rod body (30a) and a second rod body (30b) connected to each other, wherein the second rod body (30b) is perpendicular to the conveying direction of the steel wire (101), and the wire pressing component (40) is sleeved on the outer wall of the second rod body (30b).

8. The steel cord dry wire break alarm device according to claim 7, characterized in that: The wire pressing component (40) comprises a counterweight sleeve and a bearing, wherein the counterweight sleeve is connected to the second rod body (30b) via the bearing, and the counterweight sleeve is pressed above the steel wire (101).

9. The steel cord dry wire break alarm device according to claim 1, characterized in that: The connecting component (10) is provided with a first limiting structure (12), and the pressing rod (30) is provided with a second limiting structure (31). When the pressing rod (30) swings upward until the second limiting structure (31) and the first limiting structure (12) are connected to each other, the pressing rod (30) is maintained at this position, and the wire pressing component (40) is located above the mold box (100).

10. A steel cord dry wire break alarm method, characterized in that: The steel cord dry wire break alarm device according to any one of claims 1 to 9 comprises the following steps: Step 1: lift all the pressing rods (30) upwards so that the pressing wire component (40) is above the mold box (100); Step 2, passing the steel wire (101) through all the mold boxes (100) and the reel (200), lowering the pressing rod (30) so that the pressing component (40) is on the surface of the steel wire (101); Step 3, driving the steel wire (101) forward by means of the reel (200), dry-drawing the steel wire (101) by means of the wire drawing die in the die box (100), and continuously detecting the output signal of the photoelectric sensor (60) by means of the controller; Step 4, controlling the state of the alarm and the reel (200) according to the output signal of the photoelectric sensor (60) until the wire drawing is completed; Wherein; in step 4, within a predetermined period T, when the number of times the photoelectric sensor (60) outputs an action signal is greater than a preset value, the controller controls the alarm to issue a jumper alarm; When the photoelectric sensor (60) continuously outputs an action signal within a predetermined period T and the duration is greater than a preset value, the controller controls the alarm to issue a wire break alarm and controls the reel (200) to stop rotating, and after the wire is broken during manual welding, the reel (200) is restarted to continue wire drawing.

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