A production line for manufacturing door installation plates from steel edge wire scrap

Abstract

The utility model discloses a kind of steel material edge silk material waste preparation door product mounting plate production line, it is related to steel material waste processing technical field, the production line includes pedestal, feeding assembly, positioning leveling assembly, roll forming assembly, punching die assembly, bending die assembly and cutting die assembly, and supporting assembly is arranged between feeding assembly and positioning leveling assembly;Supporting assembly includes the elastic reset mechanism being set on pedestal, and the supporting piece is drivingly connected with the elastic reset mechanism, in the steel strip uncoiling conveying process, supporting piece drives elastic reset mechanism under the action of steel strip deadweight, and elastic reset mechanism makes supporting piece drop to working position to provide elastic support for steel strip.In the production line, the elastic design of supporting assembly can provide stable intermediate physical support point for flexible steel strip, effectively limit the excessive sagging radian of steel strip before entering positioning leveling assembly, avoid conveying tension loss and the longitudinal folding caused thereby.

Description

Technical Field

[0001] This utility model relates to the field of steel scrap processing technology, and more specifically, to a production line for preparing door product mounting plates from steel scrap. Background Technology

[0002] A large amount of scrap steel is generated during the slitting process. This scrap is mostly long and thin (it can be understood as steel strips). Due to its irregular size and low utilization rate, the industry currently handles it mainly by stockpiling, incinerating, or selling it at low prices. This method not only causes a serious waste of steel resources but also increases the waste disposal costs for enterprises. Furthermore, the waste gas generated by incineration may pollute the environment, which is inconsistent with the industrial development trend of green, low-carbon, and resource recycling. Therefore, there is an urgent need for a production line for preparing door product mounting plates from steel scrap steel.

[0003] In existing production lines, when scrap steel is fed onto the production line, a tension buffer section is generally provided between the feeding equipment and the roll forming equipment. However, due to the thinness and poor rigidity of the scrap steel, it will sag significantly due to its own weight during suspended transport. This unrestrained free sag results in an excessively long and uncontrollable sag section of the steel strip before entering the roll forming unit. The excessive sag radius causes the component force generated by the weight of the scrap steel strip to offset part of the conveying tension, resulting in the steel strip at the feed inlet being in a "pseudo-relaxed" state, which is prone to longitudinal folding (the longitudinal direction of the steel strip) at the moment of start-up, stop, or speed matching. However, some existing production lines do not have intermediate support points in the "tension buffer section," making it difficult to suppress the vibration of the steel strip. External disturbances are easily transmitted to the roll inlet, causing instability in the feeding posture. This not only easily causes creases on the surface of the steel strip before processing, resulting in poor forming dimensions, but may also cause jamming and shutdown due to poor feeding.

[0004] Therefore, there is an urgent need for a production line that can provide a stable support benchmark for drooping edge wire scrap steel strip, limit its excessive deformation, and suppress vibration transmission. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a production line for preparing door product installation plates from steel edge wire scrap.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A production line for preparing door product mounting plates from scrap steel edge wire includes a base, and a feeding assembly, a positioning and leveling assembly, a roll forming assembly, a punching die assembly, a bending die assembly, and a cutting die assembly arranged sequentially and at intervals along the conveying direction of the steel strip on the base. A support assembly is provided between the feeding assembly and the positioning and leveling assembly. The support assembly includes an elastic reset mechanism disposed on the base, and a support member pulsatorically connected to the elastic reset mechanism. During the uncoiling and conveying of the steel strip, the support member drives the elastic reset mechanism under the action of the steel strip's own weight, and the elastic reset mechanism lowers the support member to a working position to provide elastic support for the steel strip.

[0008] Furthermore, in this utility model, the elastic reset mechanism includes two sliding rods arranged parallel to each other on the base. The end of any sliding rod is connected to the base through a connecting lug. Two springs and two sliders are sleeved on any sliding rod. The two sliders are located between the two springs. One end of any spring is connected to the corresponding slider, and the other end is connected to the corresponding connecting lug. The support member is connected to the four sliders.

[0009] Furthermore, in this invention, the central axis of any of the slide bars is parallel to the conveying direction of the steel belt.

[0010] Furthermore, in this invention, two sliders near the feeding assembly are connected by a first cross arm, and two sliders near the positioning and leveling assembly are connected by a second cross arm; both the first cross arm and the second cross arm are hinged to the support member.

[0011] Furthermore, in this utility model, the support member includes a support plate, a lifting rod disposed on the support plate, and two diagonal braces symmetrically distributed about the lifting rod. The bottom end of the lifting rod is connected to the base. The top ends of the two diagonal braces are hinged to the support plate, and the bottom ends of the two diagonal braces are respectively hinged to the first cross arm and the second cross arm.

[0012] Furthermore, in this invention, a plurality of support rollers are rotatably arranged on the top wall of the support plate.

[0013] Furthermore, in this utility model, a vertical rod is also provided on the base, and a dustproof shell with a dustproof area is provided on the vertical rod, the dustproof area being located above the support plate; after the steel strip uncoiling and conveying is completed, the four springs cause the bearing surface of the support plate to enter the dustproof area.

[0014] Furthermore, in this utility model, both the first cross arm and the second cross arm are hinged with push rods, the free ends of the two push rods are connected by a push plate, and the free ends of the two push rods are hinged to the push plate; the two push rods are located between the first cross arm and the second cross arm.

[0015] The beneficial effects of this utility model are:

[0016] Adding a support component to the production line, with its elastic design, provides a stable intermediate physical support point for the flexible steel strip, effectively limiting the excessive sag of the steel strip before entering the positioning and leveling component, avoiding conveying tension loss and the resulting longitudinal folding; at the same time, it can absorb and attenuate the mechanical vibration transmitted from the uncoiling end and the steel strip's own vibration, blocking the transmission path of disturbance to the roll entry, enabling the edge wire scrap steel strip to enter the positioning and leveling component and the roll forming component in a more stable posture, significantly reducing the risk of jamming and downtime, and helping to improve the production quality and precision of the door product mounting plate. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the supporting component of this utility model.

[0019] In the diagram: 1-Base; 2-Feeding assembly; 3-Positioning and leveling assembly; 4-Roll forming assembly; 5-Punching die assembly; 6-Bending die assembly; 7-Cutting die assembly; 8-Support assembly; 81-Slide rod; 82-Spring; 83-Slider; 84-First cross arm; 85-Second cross arm; 86-Support plate; 87-Lifting rod; 88-Diagonal brace; 9-Support roller; 10-Dustproof shell; 11-Push rod; 12-Push plate. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Please see Figure 1 and Figure 2 This utility model provides a technical solution:

[0022] A production line for preparing door product mounting plates from scrap steel edge wire includes a base 1, and a feeding assembly 2, a positioning and leveling assembly 3, a rolling forming assembly 4, a punching die assembly 5, a bending die assembly 6, and a cutting die assembly 7 arranged sequentially and at intervals along the conveying direction of the steel strip on the base 1. A support assembly 8 is provided between the feeding assembly 2 and the positioning and leveling assembly 3. The support assembly 8 includes an elastic reset mechanism provided on the base 1, and a support member that is pulsatorically connected to the elastic reset mechanism. During the uncoiling and conveying of the steel strip, the support member drives the elastic reset mechanism under the action of the steel strip's own weight. The elastic reset mechanism causes the support member to descend to the working position to provide elastic support for the steel strip.

[0023] The feeding assembly 2 is equipped with a hydraulic tension adjustment device, which is used to automatically adjust the tension according to the tightness of the roll. The tension adjustment range of the hydraulic tension adjustment device is 5-15kN. The diameter of the feeding mechanism shaft is 50-80mm, which is suitable for roll diameters of 300-600mm. The shaft speed can be adjusted from 0.5-1r / min to ensure smooth roll conveying and avoid jamming or deviation during the conveying process, thus ensuring processing accuracy. The feeding mechanism is also equipped with guide rollers, and the guiding deviation does not exceed 0.1mm.

[0024] In use, the cleaned edge wire steel strip waste is rolled into coils with a diameter of 300-500mm using a coiler. The coils are then installed on the feed shaft of the feeding assembly 2 of the equipment. The tension adjustment device of the feeding assembly 2 is adjusted to ensure smooth feeding of the coils.

[0025] The roll forming assembly 4 includes at least two pairs of rolls arranged vertically and vertically, with each pair of rolls having forming grooves on their surfaces that match the edge curling and reinforcing ribs. The rolls are made of Cr12MoV and have undergone surface quenching treatment to improve their hardness, which can reach HRC58-62. The roll diameter is 80-120mm, and the roll surface width is adapted to the width of the edge scrap (5-10mm). The edge scrap is rolled gradually by multiple pairs of rolls at a rolling speed of 5-8m / min, achieving one-time forming of the edge curling and reinforcing ribs, avoiding excessive force during a single roll forming that could cause deformation or damage to the scrap. The roll gap adjustment range is 0.8-3.2mm, which can be precisely adjusted via a screw adjustment mechanism to accommodate edge scrap of different thicknesses (1-3mm).

[0026] When in use, the control system is started, and the feeding component 2 conveys the coiled material to the roll group at a speed of 5-8m / min. The roll group includes three pairs of rolls arranged vertically. Each pair of rolls has a forming groove on its surface that matches the edge, which has an edge height of 1-1.5mm and a semi-circular cross-section with a diameter of 1mm for the reinforcing rib. The edge scrap is rolled by the three pairs of rolls in one step and formed into a product steel strip with an edge and reinforcing rib. The gap between the rolls is adjusted to 1-2mm to match the thickness of the scrap.

[0027] The punching die assembly 5, bending die assembly 6, and cutting die assembly 7 are all electrically connected to an external PLC programmable controller for coordinated control of the processing parameters of the door product mounting plate. The punching die is made of high-speed steel W18Cr4V, and the punch diameter can be replaced with 3-5mm. The punching frequency is linked to the steel strip conveying speed at 10-15 times / minute. The bending and cutting progressive dies are made of Cr12MoV, with a bending angle adjustment range of 90°-120° and a cutting stroke of 10-20mm. According to the requirements of different specifications of finished products, the processing of small finished products of various specifications can be achieved by modifying program parameters such as punching spacing of 5-15mm, bending angle of 90°-120°, and cutting length of 30-80mm, which has strong adaptability.

[0028] In operation, the control system inputs a program to set the punching diameter to 3mm and the punching spacing to 10mm. The product steel strip moves forward at a constant speed with the conveyor mechanism. The punching die automatically completes one punching operation every 10mm according to the program settings, ensuring precise hole positioning without deviation. The control system sets the bending angle to 90° and the cutting length to 50mm. The product steel strip is conveyed to the bending and cutting progressive die. During the first downward punch, the die bends the steel strip at 90° to complete the bending and forming. During the second downward punch, the bent steel strip is cut to obtain a small finished product with a length of 50mm, featuring rolled edges, reinforcing ribs, and punching.

[0029] Below the cutting mold assembly 7 is a finished product collection assembly consisting of an air compressor and a finished product collection box. When in use, the air compressor is started to generate a high-pressure airflow of 0.3-0.5MPa. Under the action of gravity and pneumatic force, the cut small finished products are blown out of the mold and fall into the finished product collection box below.

[0030] Preferred, refer to Figure 2 In this embodiment, the elastic reset mechanism includes two parallel sliding rods 81 arranged at intervals on the base 1. The end of any sliding rod 81 is connected to the base 1 through a connecting ear. Two springs 82 and two sliders 83 are sleeved on any sliding rod 81. The two sliders 83 are located between the two springs 82. One end of any spring 82 is connected to the corresponding slider 83, and the other end is connected to the corresponding connecting ear. The support member is connected to the four sliders 83.

[0031] Preferably, in this embodiment, the two slide bars 81 are installed such that the central axis of any slide bar 81 is parallel to the conveying direction of the steel belt.

[0032] To facilitate the installation of the support component, in this embodiment, the two sliders 83 on the side near the feeding component 2 are connected by the first cross arm 84, and the two sliders 83 on the side near the positioning and leveling component 3 are connected by the second cross arm 85; both the first cross arm 84 and the second cross arm 85 are hinged to the support component.

[0033] Specifically, refer to Figure 2 In this embodiment, the support component includes a support plate 86, a lifting rod 87 disposed on the support plate 86, and two diagonal braces 88 symmetrically distributed about the lifting rod 87. The bottom end of the lifting rod 87 is connected to the base 1. The top ends of the two diagonal braces 88 are hinged to the support plate 86, and the bottom ends of the two diagonal braces 88 are respectively hinged to the first cross arm 84 and the second cross arm 85. At the same time, a plurality of support rollers 9 are rotatably disposed on the top wall of the support plate 86. The central axes of the plurality of support rollers 9 are parallel to each other, and the central axis of any support roller 9 is perpendicular to the conveying direction of the steel belt.

[0034] It should be noted that in this embodiment, the maximum compression of the four springs 82 corresponds to an elastic force approximately equal to the weight per unit length of the steel strip. This allows the system to operate in a quasi-static equilibrium region rather than a high-frequency vibration region, preventing the springs 82 from losing their buffering function due to excessive elastic force or from providing insufficient support due to insufficient elastic force.

[0035] In this embodiment, a vertical rod is also provided on the base 1, and a dustproof shell 10 with a dustproof zone is provided on the vertical rod. The dustproof zone is located above the support plate 86. After the steel strip uncoiling and conveying is completed, four springs 82 cause the bearing surface of the support plate 86 to enter the dustproof zone. After the steel strip uncoiling and conveying is completed, the support roller 9 loses the downward pressure of the steel strip's gravity, and with the rebound action of the springs 82 themselves, the support plate 86 automatically pushes the support roller 9 to rise and reset. When the support plate 86 returns to its initial position, the support roller 9 automatically enters the dustproof zone of the dustproof shell 10, thereby preventing dust accumulation on the support roller 9 when it is idle, ensuring the cleanliness of the bearing surface and the support roller 9 during the next production, and further guaranteeing the processing quality of the door product mounting plate.

[0036] To facilitate control of the first horizontal arm 84 and the second horizontal arm 85 to move away from each other, in this embodiment, both the first horizontal arm 84 and the second horizontal arm 85 are hinged with push rods 11. The free ends of the two push rods 11 are connected by a push plate 12, and the free ends of the two push rods 11 are hinged to the push plate 12. The two push rods 11 are located between the first horizontal arm 84 and the second horizontal arm 85. In use, the operator can push the push plate 12 to move the first horizontal arm 84 and the second horizontal arm 85 away from each other, thereby driving the support roller 9 to descend to the working position.

[0037] In other embodiments of this example, the support assembly 8 can also achieve its function using the following structure: several air-bag type pneumatic springs (such as rubber airbags) are arranged between the base 1 and the support plate 86, with the bottom of the airbags fixed to the base 1 and the top connected to the support plate 86. Each airbag is connected to a common air tank or pressure regulating valve through a pipeline, and the initial air pressure can be preset to match the weight of steel strips of different specifications. At the same time, a guide mechanism (such as vertical guide posts) is set around the support plate 86 to limit its movement to only up and down, preventing tilting. A displacement sensor can also be added to monitor the position of the support plate 86 in real time and feed it back to the control system to achieve active air pressure regulation. The working principle of the above structure is as follows: when the steel strip presses down on the support plate 86, the airbag is compressed, and the internal air pressure increases, providing elastic support force that balances the weight of the steel strip; after the steel strip is removed, the internal pressure of the airbag pushes the support plate 86 to reset. By adjusting the air pressure, it can adapt to edge wire scrap of different thicknesses, making it more adaptable.

[0038] Working principle:

[0039] When in use, install the cleaned and rolled steel strip onto the feed shaft of the feeding assembly 2 of the equipment, and adjust the tension adjustment device of the feeding mechanism to ensure smooth feeding of the roll.

[0040] During production, the first end of the steel strip is first inserted into the positioning and leveling assembly 3. Then, the first cross arm 84 and the second cross arm 85 are driven to move away from each other. During this process, the support plate 86 moves downward under the action of the first cross arm 84, the second cross arm 85, and the two diagonal braces 88. The support roller 9 at the top of the support plate 86 moves downward synchronously. The steel strip then passes over the support roller 9, so that it can contact the surface of the support roller 9 when it sags. This provides a stable intermediate physical support point for the flexible steel strip, effectively limiting excessive sag and avoiding loss of conveying tension and the resulting longitudinal folding. Furthermore, when the steel strip comes into contact with the support roller 9, its own weight will continuously act on the support roller 9 to push the slider 83 to squeeze the spring 82. Therefore, the support roller 9 will not automatically reset (when the support roller 9 resets, it is located in the dustproof area). Under the elastic force of the spring 82, the system can work in the quasi-static equilibrium area rather than the high-frequency vibration area. It can absorb and attenuate the mechanical vibration transmitted from the uncoiling end and the vibration of the scrap steel strip itself, and block the transmission path of disturbance to the roll entry. This allows the scrap steel strip to enter the subsequent positioning and leveling assembly 3 and roll forming assembly 4 in a more stable posture, which significantly reduces the risk of jamming and shutdown, and helps to improve the quality and accuracy of the door product mounting plate.

[0041] The control system is activated, and the feeding component 2 conveys the steel strip to the positioning and leveling component 3 and the roll forming component 4 at a speed of 5-8 m / min. The roll forming component 4 extrudes the steel strip into a product steel strip with rolled edges and reinforcing ribs.

[0042] As the product steel strip moves forward at a constant speed with the conveyor mechanism, the punching die automatically completes a punching operation every 10mm according to the program settings.

[0043] The bending angle is set to 90° and the cutting length is 50mm by the control system. When the product steel strip is conveyed to the bending die assembly 6, the die bends the steel strip 90° during the first downward punch to complete the bending and forming. During the second downward punch, the bent steel strip is cut to obtain a small finished product with a length of 50mm, with rolled edges, reinforcing ribs and punches.

[0044] When the air compressor starts, it generates a high-pressure airflow of 0.3-0.5MPa. Under the action of gravity and pneumatic force, the cut small finished products are blown out of the mold and fall into the finished product collection box below.

[0045] After the steel strip uncoiling and conveying is completed, the four springs 82 cause the bearing surface of the support plate 86 to enter the dustproof zone. After the steel strip uncoiling and conveying is completed, the support roller 9 loses the downward pressure of the steel strip's gravity, and with the rebound action of the springs 82, the support plate 86 automatically pushes the support roller 9 upwards to its reset position. When the support plate 86 returns to its initial position, the support roller 9 automatically enters the dustproof zone of the dustproof shell 10, thus preventing dust accumulation on the support roller 9 when idle. This ensures the cleanliness of the bearing surface and the support roller 9 during the next production run, further guaranteeing the processing quality of the door product mounting plate.

[0046] The above are merely preferred embodiments of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A production line for preparing door product mounting plates from scrap steel edge wire, comprising a base, and a feeding assembly, a positioning and leveling assembly, a roll forming assembly, a punching die assembly, a bending die assembly, and a cutting die assembly arranged sequentially and at intervals along the conveying direction of the steel strip on the base, characterized in that: A support component is provided between the feeding component and the positioning and leveling component; The support assembly includes an elastic reset mechanism disposed on the base and a support member that is pulsatorically connected to the elastic reset mechanism. During the uncoiling and conveying of the steel strip, the support member drives the elastic reset mechanism under the action of the steel strip's own weight. The elastic reset mechanism causes the support member to descend to the working position to provide elastic support for the steel strip.

2. The production line for preparing door product mounting plates from steel edge wire scrap according to claim 1, characterized in that: The elastic reset mechanism includes two parallel sliding rods spaced apart on the base. The end of any sliding rod is connected to the base via a connecting lug. Each sliding rod is fitted with two springs and two sliders. The two sliders are located between the two springs. One end of each spring is connected to the corresponding slider, and the other end is connected to the corresponding connecting lug. The support member is connected to the four sliders.

3. The production line for preparing door product mounting plates from steel edge wire scrap according to claim 2, characterized in that: The central axis of any of the slide bars is parallel to the conveying direction of the steel belt.

4. The production line for preparing door product mounting plates from steel edge wire scrap according to claim 3, characterized in that: Two sliders near the feeding assembly are connected by a first cross arm, and two sliders near the positioning and leveling assembly are connected by a second cross arm; both the first and second cross arms are hinged to the support member.

5. The production line for preparing door product mounting plates from steel edge wire scrap according to claim 4, characterized in that: The support includes a support plate, a lifting rod disposed on the support plate, and two diagonal braces symmetrically distributed about the lifting rod. The bottom end of the lifting rod is connected to the base. The top ends of the two diagonal braces are hinged to the support plate, and the bottom ends of the two diagonal braces are respectively hinged to the first cross arm and the second cross arm.

6. The production line for preparing door product mounting plates from steel edge wire scrap according to claim 5, characterized in that: Several support rollers are rotatably mounted on the top wall of the support plate.

7. The production line for preparing door product mounting plates from steel edge wire scrap according to claim 5, characterized in that: The base is also provided with a vertical rod, and the vertical rod is provided with a dustproof shell with a dustproof area, which is located above the support plate; after the steel strip is uncoiled and conveyed, the four springs cause the bearing surface of the support plate to enter the dustproof area.

8. The production line for preparing door product mounting plates from steel edge wire scrap according to claim 7, characterized in that: Both the first and second cross arms are hinged with push rods, and the free ends of the two push rods are connected by a push plate, and the free ends of the two push rods are hinged to the push plate; the two push rods are located between the first and second cross arms.

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