Steel strand feeding device

Abstract

The invention relates to the technical field of building construction, and provides a steel strand feeding device which comprises a supporting bottom plate, the two sides of the top of the supporting bottom plate are fixedly connected with first connecting plates, the middle of each first connecting plate is movably sleeved with a limiting shaft, and the two sides of each limiting shaft are in threaded connection with locking blocks. An electric push rod drives a rack to generate linear displacement, meshing of the rack and a gear can convert linear motion into rotating motion of the gear, then a second rotating shaft and a swing plate are driven to rotate around the shaft, and at the moment, a buffer groove formed in the swing plate is in sliding fit with a limiting rod; firstly, linear output of the electric push rod is converted into angular displacement of the swing plate through gear transmission, and then a transmission gap is effectively eliminated through a matching structure of the buffer groove and the limiting rod, so that synchronism and stability of position adjustment of the adjusting wheel are guaranteed, and rapid and accurate adjustment of the tension of the steel strand is achieved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of building construction, in particular, to a steel strand feeding device. BACKGROUND

[0002] Steel strand stranding refers to the process of twisting a plurality of steel wires into a steel strand through a stranding machine. The steel wires finally form a whole steel strand. This process involves the twisting and processing of steel wires to finally form a steel strand with specific mechanical properties First, in the existing steel strand feeding device, the cable tension change is usually sensed by a vertically movable roller (dancing roller). When the tension increases, the roller lifts up; when the tension decreases, the roller moves down. The displacement signal is fed back to the control system to dynamically adjust the conveying speed or brake to maintain constant tension. However, this way of adjusting tension is slow in response during steel strand conveying, and cannot compensate for tension changes in real time, which may cause tension imbalance for a short time, resulting in steel strand shaking, twisting or even breaking. In addition, the dancing roller can only monitor the tension at one point, while the tension distribution may be uneven during steel strand conveying due to bending, winding or local deformation. SUMMARY

[0003] To overcome the above-mentioned defects, the present application provides a steel strand feeding device, which solves the technical problem of slow tension response in the prior art.

[0004] To achieve the above-mentioned purpose, the following technical scheme is adopted: a steel strand feeding device, comprising a support bottom plate, two first connecting plates are fixedly connected to the top of the support bottom plate on both sides, a limiting shaft is movably sleeved in the middle of the first connecting plate, locking blocks are threadedly connected to the two sides of the limiting shaft, and the locking blocks are rotatably connected with the first connecting plate. A fixed plate is fixedly connected to the opposite side of the two first connecting plates, a protective shell is fixedly connected to the top of the fixed plate on both sides, and a transmission assembly is arranged in the protective shell. An installation plate is fixedly connected to the bottom of the inner surface of the protective shell, and an adjusting assembly is arranged in the installation plate. A sliding plate is slidably connected to the inside of the installation plate, an installation slot is formed in the sliding plate, and a sensing assembly is arranged in the installation slot. A pawl is arranged in the installation slot, and a restoring assembly is arranged at the bottom of the pawl.

[0005] Preferably, the inside of the supporting bottom plate is fixedly connected with a supporting plate, and one side of the top of the supporting bottom plate is fixedly connected with a supporting block.

[0006] Preferably, the transmission assembly comprises a driving motor, the output end of the driving motor is fixedly connected with a first rotating shaft, one of the rotating wheels is sleeved on the outside of the first rotating shaft, the other rotating wheel is rotatably connected to the inside of the protective shell, the outside of the rotating wheel is movably sleeved with a transmission belt, and the transmission belt connects the two groups of rotating wheels with each other, facilitating transmission.

[0007] Preferably, the adjusting assembly comprises a first fixed column, the upper and lower ends of the first fixed column are fixedly connected with second connecting plates, the middle parts of the opposite sides of the two groups of second connecting plates are fixedly connected with limiting rods, one side of the limiting rod is provided with a rotating rod, the outside of the rotating rod is sleeved with an adjusting wheel, and one end of the rotating rod penetrates through one of the second connecting plates.

[0008] Preferably, the adjusting assembly further comprises an electric push rod, the output end of the electric push rod is fixedly connected with a rack, one side of the rack is meshingly connected with a gear, the middle part of the gear is sleeved with a second rotating shaft, the middle part of the outside of the second rotating shaft is fixedly connected with an oscillating plate, the inside of the oscillating plate is provided with the buffer groove, the limiting rod is arranged in the buffer groove, and the diameter of the limiting rod is equal to the diameter of the buffer groove.

[0009] Preferably, the sensing assembly comprises a ratchet wheel, the ratchet wheel is movably sleeved on the outside of the rotating rod, the inside of the mounting groove is fixedly connected with a rotating column, the outside of the rotating column is movably sleeved with a pawl, the pawl is meshingly connected with the ratchet wheel, and one side of the pawl is fixedly connected with a third connecting plate.

[0010] Preferably, the sensing assembly comprises a spring, one end of the spring is fixedly connected to one side of the third connecting plate, the other end of the spring is fixedly connected with a top block, the inside of the mounting groove is provided with a sensing block, and the top block and the sensing block are on the same axis.

[0011] Preferably, the restoring assembly comprises a second fixed column, the second fixed column is fixedly connected to the inside of the sliding plate, the bottom of the pawl is fixedly connected with a third fixed column, the third fixed column and the outside of the second fixed column are sleeved with a tension spring, the second fixed column and the third fixed column are connected through the tension spring, and when the rotating rod stops rotating, the pawl can be pulled to better fit the ratchet wheel.

[0012] Preferably, when the ratchet wheel rotates, the pawl will push out the third connecting plate, so that the top block and the sensing block abut.

[0013] Preferably, the sliding track of the sliding plate inside the mounting plate is equal to the swing track of the adjusting wheel.

[0014] The embodiment of the present application has the following advantages: 1. In the present application, the rack driven by the electric push rod generates linear displacement, the meshing of the rack and the gear converts the linear motion into the rotational motion of the gear, thereby driving the second rotating shaft and the swing plate to rotate around the shaft. At this time, the buffer groove opened in the swing plate and the limiting rod form a sliding fit. When the adjusting wheel needs to adjust the position, the linear output of the electric push rod is first converted into the angular displacement of the swing plate through the gear transmission, and then the transmission gap is effectively eliminated through the cooperation structure of the buffer groove and the limiting rod, so as to ensure the synchronicity and stability of the position adjustment of the adjusting wheel, thereby realizing the rapid and accurate adjustment of the tension of the steel strand.

[0015] 2. In the present application, when the adjusting wheel rotates following the transmission belt in the process of cable conveying, the rotating rod is driven to rotate, the rotating rod drives the ratchet wheel to rotate, and the ratchet wheel drives the third connecting plate to displace synchronously when the pawl is ejected. The spring is deformed under pressure to push the top block to the sensing block. The spatial constraint relationship designed on the coaxial line of the top block and the sensing block ensures that the displacement track of the top block accurately triggers the sensing block. This structure converts the tension sudden change into the linear displacement signal of the top block through mechanical linkage. The spring not only provides buffering to avoid rigid impact, but also realizes the continuous abutment of the top block and the sensing block through the elastic energy storage characteristics, forming a stable electric signal triggering mechanism, so as to realize real-time sensing of tension abnormality and triggering of shutdown protection.

[0016] 3. In the present application, when the steel strand suddenly jams during work, causing the rotating rod to stop abnormally or rotate reversely, the pawl will be locked into the ratchet tooth groove to form mechanical locking. The rigid connection design of the pawl and the third connecting plate makes the displacement amount of the pawl directly converted into the displacement output of the third connecting plate. This mechanical linkage structure can directly convert the abnormal motion state of the rotating rod into the physical displacement of the trigger signal output component, providing accurate mechanical action input for the subsequent sensing module, so as to realize rapid capture of the sudden change event of the conveying state. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present application. Those skilled in the art can obtain other drawings according to the content of the example embodiments of the present application and the drawings without creating any creative labor.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application. Figure 2The internal sectional view of the fixing plate of the application; Figure 3 The structural schematic view of the rotating wheel of the application; Figure 4 The internal sectional view of the tensioning wheel of the application; Figure 5 The structural schematic view of the adjusting assembly of the application; Figure 6 The structural schematic view of the mounting groove of the application; Figure 7 The structural schematic view of the adjusting assembly of the application; Figure 5 The enlarged view of the structure at A in the application; Figure 8 The structural schematic view of the picture sensing assembly of the application.

[0019] In the figure: 1, support bottom plate; 2, support plate; 3, support block; 4, first connecting plate; 5, locking block; 6, limiting shaft; 7, fixing plate; 8, protective shell; 9, driving motor; 10, first rotating shaft; 11, rotating wheel; 12, transmission belt; 13, first fixing column; 14, second connecting plate; 15, limiting rod; 16, rotating rod; 17, adjusting wheel; 18, electric push rod; 19, rack; 20, gear; 21, second rotating shaft; 22, swing plate; 23, buffer groove; 24, mounting groove; 25, ratchet wheel; 26, rotating column; 27, pawl; 28, third connecting plate; 29, spring; 30, top block; 31, sensing block; 32, second fixing column; 33, third fixing column; 34, tension spring; 35, sliding plate; 36, mounting plate. DETAILED DESCRIPTION

[0020] The application will be further described below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the application, and are not a limitation on the application.

[0021] In order to make the drawing simple, only the parts related to the application are shown in each figure, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some figures, only one of the parts with the same structure or function is shown, or only one of them is marked. In this text, “one” not only means “only one”, but also means “more than one”, and “several” includes “two” and “more than two”.

[0022] It should be noted that, in the present text, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside 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.

[0023] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0024] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, 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 on the present application.

[0025] In addition, in the description of the present application, the terms "first", "second" and the like are only used for differentiation and description, and cannot be understood as indicating or implying relative importance.

[0026] Please refer to Figures 1-8 The steel strand feeding device provided by the embodiment of the present application comprises a supporting bottom plate 1, first connecting plates 4 are fixedly connected to both sides of the top of the supporting bottom plate 1, a limiting shaft 6 is movably sleeved in the middle of each first connecting plate 4, locking blocks 5 are threadedly connected to both sides of the limiting shaft 6, and the locking blocks 5 are rotationally connected with the first connecting plates 4. The opposite sides of the two groups of first connecting plates 4 are fixedly connected with fixed plates 7, the top of each fixed plate 7 is fixedly connected with a protective shell 8, and the interiors of the two groups of protective shells 8 are provided with transmission assemblies. The bottom of the inner surface of each protective shell 8 is fixedly connected with a mounting plate 36, and the interior of the mounting plate 36 is provided with an adjusting assembly. The interior of the mounting plate 36 is slidably connected with a sliding plate 35, the interior of the sliding plate 35 is provided with a mounting groove 24, and the interior of the mounting groove 24 is provided with a sensing assembly. The inside of the mounting groove 24 is provided with a pawl 27, the bottom of the pawl 27 is provided with a restoring assembly, the inside of the supporting bottom plate 1 is fixedly connected with a supporting plate 2, one side of the top of the supporting bottom plate 1 is fixedly connected with a supporting block 3; The sliding connection design of the mounting plate 36 and the sliding plate 35 enables the adjusting assembly to adjust the position in real time according to the tension change, and the sensing assembly in the mounting groove 24, through the meshing of the pawl 27 and the ratchet wheel 25, can monitor the rotating state of the rotating rod 16 in real time. When the rotating rod 16 stops due to sudden jamming, the meshing of the pawl 27 and the ratchet wheel 25 triggers the sensing assembly, and the abutment of the top block 30 and the sensing block 31 generates an electrical signal, so that the electric push rod 18 and the driving motor 9 respond quickly. The restoring assembly connects the second fixed column 32 and the third fixed column 33 through the tension spring 34, and automatically resets the pawl 27 when the rotating rod 16 resumes rotating, ensuring the continuous monitoring capability of the sensing assembly. The sliding plate 35 and the swing track of the adjusting wheel 17 are matched in design, so that the position change of the adjusting wheel 17 is synchronized with the displacement of the sliding plate 35, realizing dynamic closed-loop control of tension compensation.

[0027] Among them, the transmission assembly includes a driving motor 9, the output end of the driving motor 9 is fixedly connected with a first rotating shaft 10, one of the rotating wheels 11 is sleeved on the outer side of the first rotating shaft 10, the other rotating wheel 11 is rotatably connected to the inside of the protective shell 8, the outer side of the rotating wheel 11 movably sleeved with a transmission belt 12, the transmission belt 12 connects the two groups of rotating wheels 11 with each other, facilitating transmission; The driving motor 9 drives the first rotating shaft 10 to rotate one of the rotating wheels 11, and the transmission belt 12 forms a linkage transmission structure between the two groups of rotating wheels 11. In this transmission assembly, the two groups of rotating wheels 11 form a closed-loop transmission system through the transmission belt 12, so that the two rotating wheels 11 can rotate synchronously, thereby forming a bidirectional traction force in the steel strand conveying process. This design replaces the passive displacement adjustment of the dancer roll with mechanical rigid transmission. When the local tension of the steel strand changes, the meshing transmission between the transmission belt 12 and the rotating wheel 11 can instantly transmit the power difference, avoiding the response lag caused by traditional single-point monitoring. Moreover, the sleeving mode of the transmission belt 12 and the rotating wheel 11 can not only ensure the transmission efficiency, but also allow the rotating wheel 11 to rotate freely inside the protective shell 8, thereby maintaining the transmission accuracy while adapting to the slight displacement deviation caused by bending during the steel strand conveying process, and realizing dynamic tension balance.

[0028] Among them, the adjusting assembly includes a first fixed column 13, the upper and lower ends of the first fixed column 13 are fixedly connected with a second connecting plate 14, the middle of the opposite side of the two groups of second connecting plates 14 is fixedly connected with a limiting rod 15, one side of the limiting rod 15 is provided with a rotating rod 16, the outer side of the rotating rod 16 is sleeved with an adjusting wheel 17, one end of the rotating rod 16 penetrates through one of the second connecting plates 14; First, the rigid support frame is formed by the fixed connection of the first fixed column 13 and the second connecting plate 14 to provide a stable installation foundation for the adjusting assembly, and then the radial displacement of the rotating rod 16 is constrained by the limiting rod 15 arranged between the two groups of second connecting plates 14 to ensure the accuracy of the movement track of the adjusting wheel 17 during swinging. Secondly, the design of the rotating rod 16 penetrating through the second connecting plate 14 allows the adjusting wheel 17 to rotate and swing axially with the rotating rod 16, so that the dynamic tension compensation is realized by changing the contact pressure between the adjusting wheel 17 and the steel strand. Finally, the structure that the adjusting wheel 17 is movably sleeved on the outer side of the rotating rod 16 allows the adjusting wheel 17 to rotate freely to reduce the friction loss with the steel strand, and also allows the wrapping angle of the steel strand to be changed in real time by adjusting the swinging angle of the rotating rod 16, thereby quickly responding to the tension change. In this application, the limiting rod 15 and the rotating rod 16 are cooperatively arranged to ensure the swinging degree of freedom of the adjusting wheel 17 while limiting its movement amplitude, thereby avoiding sudden tension changes caused by excessive adjustment.

[0029] The adjusting assembly further includes an electric push rod 18, the output end of the electric push rod 18 is fixedly connected with a rack 19, one side of the rack 19 is meshingly connected with a gear 20, the middle part of the gear 20 is sleeved with a second rotating shaft 21, the middle part of the outer side of the second rotating shaft 21 is fixedly connected with a swinging plate 22, the inside of the swinging plate 22 is provided with a buffer groove 23, and the limiting rod 15 is arranged in the buffer groove 23. The diameter of the limiting rod 15 is equal to the diameter of the buffer groove 23. The linear displacement of the rack 19 is driven by the electric push rod 18, the meshing of the rack 19 and the gear 20 converts the linear motion into the rotary motion of the gear 20, which in turn drives the second rotating shaft 21 and the swinging plate 22 to rotate around the shaft. The buffer groove 23 provided in the inside of the swinging plate 22 is in sliding cooperation with the limiting rod 15, and the design that the diameter of the limiting rod 15 is equal to the diameter of the buffer groove 23 ensures that the swinging plate 22 always maintains surface contact with the limiting rod 15 during rotation, which not only limits the movement track of the swinging plate 22, but also absorbs impact energy through sliding friction. When the adjusting wheel 17 needs to adjust the position, the linear output of the electric push rod 18 is converted into the angular displacement of the swinging plate 22 through the gear 20 transmission. The cooperation structure of the buffer groove 23 and the limiting rod 15 can effectively eliminate the transmission gap, ensuring the synchronicity and stability of the position adjustment of the adjusting wheel 17, thereby realizing the rapid and accurate adjustment of the tension of the steel strand.

[0030] The sensing assembly includes a ratchet wheel 25, the ratchet wheel 25 is movably sleeved on the outer side of the rotating rod 16, the inside of the mounting groove 24 is fixedly connected with a rotating column 26, the outer side of the rotating column 26 is movably sleeved with a pawl 27, the pawl 27 is meshingly connected with the ratchet wheel 25, and one side of the pawl 27 is fixedly connected with a third connecting plate 28. The mechanical trigger mechanism is constructed through the meshing relationship between the ratchet wheel 25 and the pawl 27. When the rotating rod 16 drives the ratchet wheel 25 to rotate forward, the pawl 27 slides on the tooth surface of the ratchet wheel 25 to keep the pawl 27 in the same position. If the steel strand suddenly jams to cause the rotating rod 16 to stop abnormally or rotate reversely, the pawl 27 will be clamped into the tooth groove of the ratchet wheel 25 to form mechanical locking. The rigid connection between the pawl 27 and the third connecting plate 28 enables the displacement of the pawl 27 to be directly converted into the displacement output of the third connecting plate 28. This mechanical linkage structure can directly convert the abnormal motion state of the rotating rod 16 into the physical displacement of the trigger signal output component, providing accurate mechanical action input for the subsequent sensing module, so as to realize the rapid capture of the sudden change event of the conveying state.

[0031] The sensing assembly includes a spring 29, one end of the spring 29 is fixedly connected to one side of the third connecting plate 28, and the other end of the spring 29 is fixedly connected with a top block 30. The inside of the installation slot 24 is provided with a sensing block 31, and the top block 30 and the sensing block 31 are on the same axis. Through the rotation of the ratchet wheel 25, the pawl 27 drives the third connecting plate 28 to displace, and the spring 29 is deformed under pressure to push the top block 30 to the sensing block 31. The spatial constraint relationship of the coaxial design of the top block 30 and the sensing block 31 ensures that the displacement trajectory of the top block 30 accurately triggers the sensing block 31. This structure converts the tension change of the device into the linear displacement signal of the top block 30 through mechanical linkage, forms a stable electrical signal triggering mechanism, and thus realizes real-time sensing of tension abnormalities and triggering of shutdown protection. At the same time, the spring 29 not only provides buffering to avoid rigid impact, but also realizes the continuous abutment of the top block 30 and the sensing block 31 through the elastic energy storage characteristics.

[0032] The restoring assembly includes a second fixed column 32, the second fixed column 32 is fixedly connected to the inside of the sliding plate 35, the bottom of the pawl 27 is fixedly connected with a third fixed column 33, the third fixed column 33 and the outside of the second fixed column 32 are sleeved with a tension spring 34, and the second fixed column 32 and the third fixed column 33 are connected through the tension spring 34. When the rotating rod 16 stops rotating, the pawl 27 can be pulled to better fit the ratchet wheel 25. A stable fulcrum is formed by the rigid fixing of the second fixed column 32 and the sliding plate 35, the third fixed column 33 is connected with the bottom of the pawl 27 to form a linkage structure, and the elastic connection between the two through the tension spring 34 forms a bidirectional action mechanism. When the rotating rod 16 stops rotating, the contraction force of the tension spring 34 directly acts on the bottom of the pawl 27, forcing the pawl 27 to produce rotational displacement around the axis of the rotating column 26, thereby eliminating the gap between the pawl 27 and the ratchet wheel 25. This passive reset structure based on elastic elements can automatically eliminate the idle stroke in the mechanical transmission chain at the moment of transmission stop, ensuring that the ratchet wheel 25 mechanism is in a one-way locking state. The integration design of the second fixed column 32 and the sliding plate 35 ensures the consistency of the transmission path of the force of the tension spring 34 and the movement direction of the sliding plate 35, avoiding reset delay caused by structural interference. The rigid connection of the third fixed column 33 and the pawl 27 realizes efficient conversion of the elastic force into the rotational torque of the pawl 27, enabling the pawl 27 to quickly respond to transmission state changes without active driving.

[0033] Wherein, when the ratchet wheel 25 rotates, the pawl 27 will push out the third connecting plate 28, so that the top block 30 and the sensing block 31 abut, and the sliding trajectory of the sliding plate 35 inside the mounting plate 36 is equal to the swing trajectory of the adjusting wheel 17; Through the rotation of the ratchet wheel 25, the meshing of the pawl 27 and the ratchet wheel 25 produces mechanical displacement, the pawl 27 pushes the third connecting plate 28 outward, and the third connecting plate 28 drives the top block 30 and the sensing block 31 to form physical contact. This contact action converts mechanical movement into electrical signals, and the signal trigger of the sensing block 31 realizes real-time feedback control of the conveying device. The meshing characteristics of the ratchet wheel 25 and the pawl 27 determine that this action only occurs when the cable is blocked and the ratchet wheel 25 rotates forward, and the pawl 27 automatically resets when it rotates in the opposite direction. This one-way trigger mechanism can accurately capture the abnormal state of cable jamming instantaneously, and the abutment of the top block 30 and the sensing block 31 uses a rigid contact method, which can eliminate signal transmission delay compared to indirect detection of traditional sensors, achieving millisecond-level response.

[0034] Working principle: In the working process, the rack 19 is driven by the electric push rod 18 to produce linear displacement, and the meshing of the rack 19 and the gear 20 converts linear motion into rotational motion of the gear 20, thereby driving the second rotating shaft 21 and the swing plate 22 to rotate around the shaft. At this time, the buffer groove 23 inside the swing plate 22 forms a sliding fit with the limiting rod 15. When the adjusting wheel 17 needs to adjust the position, the linear output of the electric push rod 18 will first be converted into angular displacement of the swing plate 22 through the gear 20 transmission, and then the transmission gap will be effectively eliminated through the cooperation structure of the buffer groove 23 and the limiting rod 15, thereby ensuring the synchronization and stability of the position adjustment of the adjusting wheel 17, and realizing the rapid and accurate adjustment of the steel strand tension; In the process of cable conveying, the rotation of the adjusting wheel 17 following the transmission belt 12 drives the rotation of the rotating rod 16, the rotation of the rotating rod 16 drives the rotation of the ratchet 25, the rotation of the ratchet 25 drives the pawl 27 to be ejected, at this time, the pawl 27 synchronously drives the third connecting plate 28 to displace, the spring 29 is compressed and deformed to push the top block 30 to the sensing block 31, and the spatial constraint relationship of the coaxial line design of the top block 30 and the sensing block 31 ensures that the displacement trajectory of the top block 30 accurately triggers the sensing block 31, the structure converts the tension mutation into the linear displacement signal of the top block 30 through mechanical linkage, the spring 29 not only provides buffering to avoid rigid impact, but also realizes the continuous abutment of the top block 30 and the sensing block 31 through the elastic energy storage characteristics, forms a stable electric signal triggering mechanism, so as to realize real-time sensing of tension abnormality and trigger shutdown protection. If the steel strand suddenly jams to cause the rotating rod 16 to abnormally stop or reverse rotation, the pawl 27 will be clamped into the tooth groove of the ratchet 25 to form mechanical locking, and the rigid connection design of the pawl 27 and the third connecting plate 28 makes the displacement amount of the pawl 27 directly converted into the displacement output of the third connecting plate 28, and the mechanical linkage structure can directly convert the abnormal motion state of the rotating rod 16 into the physical displacement of the trigger signal output component, so as to provide accurate mechanical action input for the subsequent sensing module, thereby realizing rapid capture of the conveying state mutation event.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A steel strand feeding device, comprising a supporting base plate (1), characterized in that: Both sides of the top of the support base plate (1) are fixedly connected to a first connecting plate (4), the middle of the first connecting plate (4) is movably sleeved with a limit shaft (6), both sides of the limit shaft (6) are threadedly connected to a locking block (5), and the locking block (5) is rotatably connected to the first connecting plate (4); A fixing plate (7) is fixedly connected to opposite sides of the two groups of the first connecting plates (4), and both sides of the top of the fixing plate (7) are fixedly connected to a protective shell (8), and a transmission assembly is provided inside the two groups of the protective shells (8); A mounting plate (36) is fixedly connected to the bottom of the inner surface of the protective shell (8), and an adjustment component is provided inside the mounting plate (36); The interior of the mounting plate (36) is slidably connected to a sliding plate (35), a mounting groove (24) is provided inside the sliding plate (35), and a sensing component is provided inside the mounting groove (24); A pawl (27) is provided inside the installation groove (24), and a restoration assembly is provided at the bottom of the pawl (27).

2. A steel strand feeding device according to claim 1, characterized in that: The interior of the support base plate (1) is fixedly connected to a support plate (2), and one side of the top of the support base plate (1) is fixedly connected to a support block (3).

3. A steel strand feeding device according to claim 2, characterized in that: The transmission assembly includes a driving motor (9), an output end of the driving motor (9) is fixedly connected to a first rotating shaft (10), an outer side of the first rotating shaft (10) is sleeved with one of the rotating wheels (11), the other rotating wheel (11) is rotatably connected to the inside of the protective shell (8), and an outer side of the rotating wheel (11) is movably sleeved with a transmission belt (12), and the transmission belt (12) connects the two groups of rotating wheels (11) to each other for easy transmission.

4. A steel strand feeding device according to claim 3, characterized in that: The adjustment component comprises a first fixed column (13), the upper and lower ends of the first fixed column (13) are fixedly connected to the second connecting plates (14), the middle parts of the two sets of the second connecting plates (14) on opposite sides are fixedly connected to the limiting rod (15), one side of the limiting rod (15) is provided with a rotating rod (16), the outer side of the rotating rod (16) is sleeved with an adjusting wheel (17), and one end of the rotating rod (16) passes through one of the second connecting plates (14).

5. A steel strand feeding device according to claim 4, characterized in that: The adjustment component also includes an electric push rod (18), the output end of the electric push rod (18) is fixedly connected to a rack (19), one side of the rack (19) is meshedly connected to a gear (20), the middle part of the gear (20) is sleeved with a second rotating shaft (21), the outer side of the middle part of the second rotating shaft (21) is fixedly connected to a swing plate (22), the inside of the swing plate (22) is provided with a buffer groove (23), the limiting rod (15) is arranged inside the buffer groove (23), and the diameter of the limiting rod (15) is equal to the diameter of the buffer groove (23).

6. A steel strand feeding device according to claim 5, characterized in that: The sensing component includes a ratchet (25), the ratchet (25) is movably sleeved on the outer side of the rotating rod (16), the interior of the mounting groove (24) is fixedly connected to a rotating column (26), the outer side of the rotating column (26) is movably sleeved with a pawl (27), the pawl (27) is meshed and connected to the ratchet (25), and one side of the pawl (27) is fixedly connected to a third connecting plate (28).

7. The steel strand feeding device according to claim 6, characterized in that: The sensing assembly includes a spring (29), one end of the spring (29) is fixedly connected to one side of the third connecting plate (28), the other end of the spring (29) is fixedly connected to a top block (30), a sensing block (31) is provided inside the mounting groove (24), and the top block (30) and the sensing block (31) are on the same axis.

8. The steel strand feeding device according to claim 7, characterized in that: The reduction assembly includes a second fixed column (32), the second fixed column (32) is fixedly connected to the inside of the sliding plate (35), the bottom of the pawl (27) is fixedly connected to the third fixed column (33), the outer sides of the third fixed column (33) and the second fixed column (32) are provided with a tension spring (34), the second fixed column (32) and the third fixed column (33) are connected by the tension spring (34), and when the rotating rod (16) stops rotating, it can pull the pawl (27) to make it fit better with the ratchet (25).

9. The steel strand feeding device according to claim 8, characterized in that: When the ratchet (25) rotates, the pawl (27) pushes out the third connecting plate (28), causing the push block (30) to abut against the sensing block (31).

10. The steel strand feeding device according to claim 9, characterized in that: The sliding track of the sliding plate (35) inside the mounting plate (36) is equal to the swing track of the regulating wheel (17).

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