A strap crimping device

Abstract

The utility model provides a kind of strapping curling forming device, including first drive component, main shaft, second drive component and the upper winding part and the lower winding part of symmetrical arrangement in the two sides of the front end of main shaft;The outer side of winding part is arc surface structure, its inner side is provided with the clamp for clamping strapping end part;First drive component is used to drive main shaft rotation, to drive lower winding part rotation;Second drive component is connected with upper winding part and lower winding part, for driving two mutually far away to open or mutually close to gather;When upper winding part and lower winding part open, clamp is in clamping state to fix strapping end part;When two gather, clamp releases strapping end part.The utility model is through setting up the upper winding part and lower winding part that can open or gather, and cooperate the action that clamp clamps when opening, releases when gathering, the quick separation of strapping curling forming after winding part and coiled is facilitated, fundamentally solves the difficult problem that traditional fixed type reel is difficult to extract from coiled center.

Description

Technical Field

[0001] This utility model relates to the field of steel coil strapping forming technology, and in particular to a strapping coil forming device. Background Technology

[0002] In the steel production process, incoming steel coils at the inlet of cold-rolled, silicon steel, and stainless steel mills are typically secured with steel strapping, especially for high-strength steel or thick steel plates, where multiple straps are often applied to enhance binding stability. Before the steel coils are transported to the uncoiler, these straps must be removed, and the long, waste strapping sections are recycled. To achieve efficient resource recycling, the waste strapping generally undergoes pretreatment—removing buckles that affect strength, welding them together to form continuous strips, and finally rewinding them into neat coils for easy transportation and storage.

[0003] Traditional strapping winding mechanisms typically employ a fixed drum, with the strapping wrapping layer by layer around the drum surface during the winding process, ultimately forming a tight coil. However, this structure has significant drawbacks: after the strapping is wound, the drum is tightly wrapped around the center of the coil, making it difficult to remove smoothly and severely impacting operational efficiency. Forced disassembly can easily damage the equipment or deform the strapping coil, increasing maintenance costs and operational risks.

[0004] Therefore, there is an urgent need in the existing technology for a structurally improved strapping winding mechanism to fundamentally solve the problem of difficult roll extraction and improve the continuity, safety and economy of strapping recycling operations. Utility Model Content

[0005] This utility model proposes a strapping coil forming device, which solves the problem that existing strapping coiling mechanisms, due to their fixed roll structure, make it difficult for the roll to be smoothly pulled out from the center of the coil after the strapping is formed.

[0006] The technical solution of this utility model is implemented as follows: This utility model provides a strapping coiling and forming device, including a first driving component, a main shaft, a second driving component, and an upper winding part and a lower winding part symmetrically arranged on both sides of the front end of the main shaft. The outer surfaces of the upper and lower winding sections are arc-shaped, and their inner surfaces are provided with clamps for clamping the ends of the straps. The first driving component is connected to the main shaft drive and is used to drive the main shaft to rotate so as to drive the upper winding part and the lower winding part to rotate synchronously and realize the winding and forming of the strap; The second driving component is connected to the upper winding portion and the lower winding portion, and is used to drive the two to move away from each other to open or move closer to each other to close; when the upper winding portion and the lower winding portion are opened, the clamp is in a clamping state to fix the end of the strap; when the two are closed, the clamp releases the end of the strap.

[0007] Specifically, the clamp has an "L" shaped structure, and the clamps for the upper winding portion and the clamps for the lower winding portion are arranged alternately in the vertical direction.

[0008] Specifically, the front end of the spindle is provided with a turntable, and the front end face of the turntable is provided with a groove along its radial direction. An upper slider and a lower slider are slidably installed in the groove. The upper slider is connected to the lower winding part, and the lower slider is connected to the upper winding part. The second driving component is connected to the upper slider and the lower slider and is used to drive the two to slide synchronously towards each other or away from each other along the groove, so as to drive the upper winding part and the lower winding part to retract or expand.

[0009] Furthermore, the inner wall of the slide groove is provided with a limiting block along its length direction, and the outer walls of the upper and lower sliders are respectively provided with limiting grooves. The limiting block and the limiting groove cooperate to achieve sliding guidance.

[0010] Furthermore, a linear bearing is fitted onto the main shaft, and an upper push rod and a lower push rod are fixedly connected to the upper and lower sides of the linear bearing, respectively. The bottom surface of the front end of the upper push rod and the top surface of the front end of the lower push rod are both provided with inclined surfaces. The top of the upper slider and the bottom of the lower slider are respectively provided with wedges that cooperate with the corresponding inclined surfaces. A push plate is installed at the end of the telescopic rod of the second drive component, and the push plate is fixedly connected to the linear bearing.

[0011] Optionally, the molding device further includes a bracket and a base plate. The first driving component and the second driving component are both fixedly mounted on the base plate. The bracket is provided with a guide rail along the main shaft axis. The base plate is equipped with a guide slider that cooperates with the guide rail. The bracket is provided with a third driving component. The telescopic rod of the third driving component is fixedly connected to the base plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) By setting up an upper winding part and a lower winding part that can be spread apart or close together, and cooperating with the clamp to clamp when spread apart and release when closed, this utility model facilitates the quick separation of the winding part and the coil after the strapping is rolled into shape. It fundamentally solves the problem that the traditional fixed roll is difficult to pull out from the center of the coil, significantly improves the efficiency and safety of the strapping rolling, and reduces the risk of damage to the equipment and the strapping coil. (2) This utility model achieves synchronous and smooth opening and closing of the upper and lower winding parts in the radial direction by means of the sliding cooperation of the turntable, the slide groove, the upper slider and the lower slider, and the transmission method of the linear bearing, the wedge block and the push rod. The mechanical structure has precise transmission and good rigidity, which can ensure that the winding part remains stable during the rotation process, while simplifying the drive and control logic. (3) By setting up a bracket, a base plate, a guide rail and a third drive component, the present invention enables the entire forming device to have an overall axial movement function, which facilitates automatic extraction of the winding part from the strapping coil after the coiling is formed. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a perspective view of a strapping and coiling forming device according to the present invention.

[0015] Figure 2 This is a cross-sectional structural diagram of a strapping coiling and forming device according to the present invention.

[0016] Figure 3 This is an assembly structure diagram of the winding section, slider, turntable, and push rod in this embodiment.

[0017] Figure 4 This is an exploded view of the winding section, slider, turntable, and push rod in this embodiment.

[0018] Figure 5 This is another perspective view of a strapping coiling and forming device according to this embodiment.

[0019] In the diagram: 1. First drive component; 2. Main shaft; 3. Second drive component; 4. Upper winding section; 5. Lower winding section; 6. Fixture; 7. Turntable; 8. Slide groove; 9. Upper slider; 10. Lower slider; 11. Limiting block; 12. Limiting groove; 13. Linear bearing; 14. Upper push rod; 15. Lower push rod; 16. Wedge; 17. Push plate; 18. Bracket; 19. Base plate; 20. Guide slide rail; 21. Guide slider; 22. Third drive component; 23. Coil. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to its 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] Reference Figures 1 to 5This embodiment provides a strapping coil forming device, including a first driving component 1, a main shaft 2, a second driving component 3, and an upper winding part 4 and a lower winding part 5 symmetrically arranged on both sides of the front end of the main shaft 2. The outer surfaces of the upper winding section 4 and the lower winding section 5 are arc-shaped, and their inner surfaces are provided with clamps 6 for clamping the ends of the strapping. This arc-shaped structure forms a support surface for the strapping to wrap during the coiling process, and its curvature ensures the regularity of the coiled shape 23. The symmetrical arrangement of the upper and lower winding sections and their ability to move relative to each other is the core structural basis for realizing the function of the "openable winding section".

[0022] The first driving component 1 is connected to the main shaft 2 for driving the main shaft 2 to rotate, thereby driving the upper winding part 4 and the lower winding part 5 to rotate synchronously, so as to realize the winding and forming of the strapping. The first driving component 1 (usually a rotary motor) provides the main power for winding and forming. It transmits the torque to the entire winding mechanism through the main shaft 2, ensuring that the upper and lower winding parts rotate synchronously as a whole, so as to continuously and evenly wind the strapping on its combined arc surface to form a tight coil 23.

[0023] The second driving component 3 is connected to the upper winding section 4 and the lower winding section 5, and is used to drive them to move away from each other to open or move closer to each other to close. When the upper winding section 4 and the lower winding section 5 are opened, the clamp 6 is in a clamping state to fix the end of the strap. When they are closed, the clamp 6 releases the end of the strap. The second driving component 3 (usually a linear drive device such as a cylinder or hydraulic cylinder) is the actuator that controls the opening and closing of the winding section and the linkage with the clamp 6. Its unique control logic is the key to this utility model: in the "opening" state, the winding section forms the maximum winding diameter to start the winding operation, and at the same time triggers the clamp 6 to perform the "clamping" action to firmly grasp the end of the strap and prevent slippage. In the "closing" state, the overall radial dimension of the winding section shrinks, breaking away from the tight contact with the inner circle of the formed coil 23, and at the same time triggers the clamp 6 to "release" and completely release the end of the strap.

[0024] Specifically, such as Figure 2 , 3 As shown, the clamp 6 has an "L" shaped structure, and the clamp 6 of the upper winding part 4 and the clamp 6 of the lower winding part 5 are staggered in the vertical direction. Strictly speaking, the upper clamp 6 is "L" shaped, while the lower clamp 6 is "7" shaped. This structural design allows the "hooks" of the two clamps 6 to come closer together to clamp the end of the strap when the two clamps 6 move away from each other with their corresponding winding parts, and the "hooks" of the two clamps 6 to move away from each other to release the end of the strap when the two clamps 6 move closer together with their corresponding winding parts. This achieves the linkage between clamping and opening of the winding part and the linkage between releasing and closing of the winding part.

[0025] Specifically, such as Figure 2-4As shown, the front end of the main shaft 2 is provided with a turntable 7. A groove 8 is radially formed on the front surface of the turntable 7. An upper slider 9 and a lower slider 10 are slidably mounted within the groove 8. The upper slider 9 is connected to the lower winding part 5 via a diagonal rod, and the lower slider 10 is connected to the upper winding part 4 via a diagonal rod. The second driving component 3 is connected to the upper slider 9 and the lower slider 10, and is used to drive them to slide synchronously towards or away from each other along the groove 8, thereby causing the upper winding part 4 and the lower winding part 5 to close or open. The turntable 7 serves as a transmission and support carrier. Its radial groove 8 provides a precise linear motion track for the upper and lower sliders, converting the linear thrust of the second driving component 3 into radial motion of the upper and lower sliders on the turntable 7, which in turn directly drives the upper and lower winding parts connected to them to open and close. Due to the constraint of the groove 8, the synchronicity and trajectory accuracy of the two winding parts are ensured, resulting in symmetrical movement when open and tight engagement when closed.

[0026] Furthermore, such as Figure 4 As shown, a limiting block 11 is provided on the inner wall of the slide groove 8 along its length direction, and limiting grooves 12 are correspondingly provided on the outer walls of the upper slider 9 and the lower slider 10. The limiting block 11 and the limiting groove 12 cooperate to achieve sliding guidance. The cooperation of the limiting block 11 and the limiting groove 12 forms a high-precision sliding guide pair to prevent the slider from disengaging from the slide groove 8.

[0027] Furthermore, such as Figure 1-4 As shown, a linear bearing 13 is sleeved on the main shaft 2. An upper push rod 14 and a lower push rod 15 are fixedly connected to the upper and lower sides of the linear bearing 13, respectively. The bottom surface of the front end of the upper push rod 14 and the top surface of the front end of the lower push rod 15 are both provided with inclined surfaces (in specific implementation, a groove is opened on the top or bottom surface of the end of the push rod, the bottom or top surface of the groove is an inclined surface, and the width of the groove matches the width of the wedge block 16 behind it. The groove is used to guide and limit the wedge block 16). The top of the upper slider 9 and the bottom of the lower slider 10 are respectively provided with wedge blocks 16 that cooperate with the corresponding inclined surfaces. A push plate 17 is installed at the end of the telescopic rod of the second drive component 3. The push plate 17 is fixedly connected to the linear bearing 13. This part constitutes a transmission mechanism that converts the axial movement of the second drive component 3 into the radial opening and closing movement of the winding part. Its working principle is: the second drive component 3 drives the push plate 17 to move axially, which drives the linear bearing 13 and the upper and lower push rods fixed on it to move axially synchronously. The inclined surface at the front end of the push rod contacts the inclined surface of the wedge 16 on the slider, generating an interaction force. When the push rod is pushed axially, the inclined surface forces the wedge 16 (i.e., the slider) to slide radially inward (spreading the two winding sections apart); when the push rod is pulled back axially, the wedge 16 loses the resisting force of the push rod, and the slider can slide radially outward (at this time, the two winding sections can freely retract).

[0028] Optionally, such as Figure 5As shown, the forming device also includes a bracket 18 and a base plate 19. The first driving component 1 and the second driving component 3 are both fixedly mounted on the base plate 19. The bracket 18 is provided with a guide rail 20 along the axial direction of the main shaft 2. The base plate 19 is equipped with a guide slider 21 that cooperates with the guide rail 20. The bracket 18 is provided with a third driving component 22, and the telescopic rod of the third driving component 22 is fixedly connected to the base plate 19. The bracket 18, the base plate 19, and the guiding mechanism constitute the overall axial movement unit of the device. The base plate 19 serves as the mounting platform for the main driving component. Through the cooperation of the guide slider 21 and the guide rail 20 on the bracket 18, it ensures that the component can only move linearly with high precision along the axial direction of the main shaft 2 (i.e., the axial direction of the strapping coil 23). The third driving component 22 (such as a cylinder) provides the power for axial movement. After the winding section retracts and the strapping is released, the third drive component 22 can drive the entire winding mechanism (including the main shaft 2, turntable 7, winding section, etc.) to move smoothly backward along the axial direction, thereby completely removing the retracted winding section from the center hole of the formed strapping coil 23, realizing the automation of the entire unwinding process and greatly improving work efficiency and safety.

[0029] The working process of the curling and forming device in this embodiment is as follows: Feeding and clamping: The pre-treated continuous strapping end is guided to the side of the winding section, and the strapping end is inserted between the clamping openings of the upper and lower clamps 6; then the upper slider 9 and the lower slider 10 are driven to slide towards each other by the second driving component 3, which drives the upper winding section 4 and the lower winding section 5 to open. During this process, the two "L" shaped clamps 6 close, firmly clamping the strapping end in the clamping openings formed by the upper and lower parts.

[0030] Curling and forming: The first driving component 1 is started, driving the main shaft 2, turntable 7 and the upper and lower winding parts in the open state to rotate as a whole. The strapping is continuously pulled and wrapped on the winding surface formed by the arc surfaces of the two winding parts, gradually forming a tight coil 23.

[0031] Unwinding preparation: Once the strapping roll reaches the predetermined size, the strapping is cut by the cutter at the front end. The first drive component 1 stops rotating, and the second drive component 3 reverses its movement, driving the upper and lower sliders to slide in opposite directions, causing the upper and lower winding sections to move closer together and close. Simultaneously, the closing action triggers the clamp 6 to release, releasing the strapping end. At this point, the overall radial dimension of the winding section is significantly reduced, creating a gap between it and the inner hole of the forming coil 23.

[0032] Extraction and Reset: The third drive component 22 is activated, pulling the base plate 19 to move the entire winding mechanism (including the coiled winding section) axially along the guide rail 20, smoothly extracting it from the center hole of the strapping coil 23. Subsequently, the device can be reset to its initial position, ready for the next work cycle. Through the above process, this invention achieves efficient, automatic winding and convenient unwinding of the strapping.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A strapping coiling and forming device, characterized in that, It includes a first drive component (1), a main shaft (2), a second drive component (3), and an upper winding part (4) and a lower winding part (5) symmetrically arranged on both sides of the front end of the main shaft (2); The outer surfaces of the upper winding portion (4) and the lower winding portion (5) are arc-shaped, and the inner surfaces are provided with clamps (6) for clamping the ends of the straps. The first driving component (1) is connected to the main shaft (2) for driving the main shaft (2) to rotate, so as to drive the upper winding part (4) and the lower winding part (5) to rotate synchronously, thereby realizing the winding and forming of the strap; The second driving component (3) is connected to the upper winding part (4) and the lower winding part (5) and is used to drive the two to move away from each other to open or move closer to each other to close; when the upper winding part (4) and the lower winding part (5) are opened, the clamp (6) is in a clamping state to fix the end of the strap; when the two are closed, the clamp (6) releases the end of the strap.

2. The strapping coiling and forming device as described in claim 1, characterized in that, The clamp (6) has an "L" shaped structure, and the clamp (6) of the upper winding part (4) and the clamp (6) of the lower winding part (5) are arranged alternately in the vertical direction.

3. The strapping coiling and forming device as described in claim 1, characterized in that, The front end of the main shaft (2) is provided with a turntable (7), and the front end face of the turntable (7) is provided with a groove (8) along its radial direction. An upper slider (9) and a lower slider (10) are slidably installed in the groove (8). The upper slider (9) is connected to the lower winding part (5), and the lower slider (10) is connected to the upper winding part (4). The second driving component (3) is connected to the upper slider (9) and the lower slider (10) and is used to drive the two to slide synchronously towards each other or away from each other along the groove (8) so as to drive the upper winding part (4) and the lower winding part (5) to close or open.

4. The strapping coiling and forming device as described in claim 3, characterized in that, The inner wall of the slide (8) is provided with a limiting block (11) along its length direction, and the outer walls of the upper slider (9) and the lower slider (10) are respectively provided with limiting grooves (12). The limiting block (11) and the limiting groove (12) cooperate to achieve sliding guidance.

5. The strapping coiling and forming device as described in claim 3, characterized in that, A linear bearing (13) is fitted on the main shaft (2). An upper push rod (14) and a lower push rod (15) are fixedly connected to the upper and lower sides of the linear bearing (13), respectively. The bottom front surface of the upper push rod (14) and the top front surface of the lower push rod (15) are both provided with inclined surfaces. The top of the upper slider (9) and the bottom of the lower slider (10) are respectively provided with wedges (16) that cooperate with the corresponding inclined surfaces. A push plate (17) is installed at the end of the telescopic rod of the second drive component (3). The push plate (17) is fixedly connected to the linear bearing (13).

6. The strapping coiling and forming device as described in claim 1, characterized in that, The molding device further includes a bracket (18) and a base plate (19). The first driving component (1) and the second driving component (3) are both fixedly installed on the base plate (19). The bracket (18) is provided with a guide slide rail (20) along the main shaft (2). The base plate (19) is provided with a guide slider (21) that cooperates with the guide slide rail (20). The bracket (18) is provided with a third driving component (22). The telescopic rod of the third driving component (22) is fixedly connected to the base plate (19).

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