Bidirectional propulsion type strip steel uncoiler

Abstract

The utility model relates to the field of strip steel machining, in particular to a two-way pushing type strip steel uncoiler which comprises two supporting machine bodies and rotating shafts rotationally connected to the supporting machine bodies, the ends, close to each other, of the two rotating shafts are each provided with an expansion and contraction mechanism, each rotating shaft is further fixedly connected with a limiting disc, and the two expansion and contraction mechanisms are located between the two limiting discs; each limiting disc is provided with at least two through holes, each through hole is internally connected with a limiting block in a sliding mode, and each limiting disc is provided with a driving mechanism for driving each limiting block on the corresponding limiting disc to move in the direction of the rotating shaft. The steel coil expansion mechanism has the effects of reducing the situation that the steel coil is separated from the expansion mechanism and ensuring the construction safety.

Description

Technical Field

[0001] This application relates to the field of strip steel processing, and in particular to a bidirectional propulsion strip steel uncoiler. Background Technology

[0002] Uncoiling machines are key pieces of equipment in the metal sheet processing industry. They are mainly used for leveling steel plates and uneven plates, and are integrated with other equipment (such as leveling machines and shearing machines) to form production lines. They are widely used in machinery manufacturing, automobiles, home appliances, and building steel structures. Uncoiling machines are commonly used to unwind steel coils. They typically include a rotating expansion and contraction structure that can fix the inner coil of the steel coil. The expansion and contraction structure is inserted into the inner coil of the steel coil to tighten and fix it. Then, pulling the steel coil drives the expansion and contraction structure to rotate, thereby unwinding the steel coil.

[0003] Chinese Patent CN115156334B discloses an automatic force-expanding and contracting uncoiling machine, comprising a base, with slides symmetrically slidably connected to both sides of the top surface of the base, and a sliding assembly mounted on the top surface of the base. The sliding assembly is hinged to the side wall of the slide, and an expansion and contraction mechanism is rotatably connected to the top of the slide via an mounting component. The expansion and contraction mechanisms on the two slides are correspondingly arranged, and the central axes of the two expansion and contraction mechanisms are collinear. A drive assembly is mounted on each slide, and the drive assembly is in transmission cooperation with one of the expansion and contraction mechanisms. During operation, the two expansion and contraction mechanisms are inserted into the inner ring of the steel coil, and then the expansion and contraction mechanisms expand and press against the inner ring of the steel coil, pulling the steel coil to rotate and unwinding the strip steel.

[0004] However, as the steel coil is unwound, the coil may become loose, resulting in an increase in the inner diameter of the coil. At this time, the fixing force of the expansion and contraction mechanism is insufficient, and the steel coil may detach from the expansion and contraction mechanism and move to one side of the uncoiler, which may easily cause safety hazards. Utility Model Content

[0005] To reduce the occurrence of steel coils detaching from the expansion and contraction mechanism and ensure construction safety, this application provides a bidirectional propulsion strip uncoiler.

[0006] The bidirectional propulsion strip uncoiler provided in this application adopts the following technical solution:

[0007] A bidirectional propulsion strip uncoiler includes two support bodies and a rotating shaft rotatably connected to each support body. An expansion and contraction mechanism is installed at one end of the two rotating shafts that are close to each other. A limit plate is also fixedly connected to each rotating shaft. The two expansion and contraction mechanisms are located between the two limit plates. Each limit plate has at least two through holes, and a limit block is slidably connected in each through hole. A drive mechanism is installed on each of the limit plates to drive each limit block on the corresponding limit plate to move along the direction of the rotating shaft.

[0008] By adopting the above technical solution, the limiting discs can effectively reduce the occurrence of strip steel detaching from the expansion and contraction mechanism during the uncoiling process. When installing the steel coil, the two limiting discs can firmly clamp the coil. At this time, the limiting blocks on each limiting disc are in contact with the steel coil, ensuring the stability and safety of the installation process and maintaining an appropriate distance between the steel coil and each limiting disc. After installation, the drive mechanism controls each limiting block to move along the rotation axis, causing the limiting blocks to retract into the through holes, thereby disengaging the limiting discs from the steel coil and preventing interference with the normal uncoiling of the steel coil.

[0009] Preferably, the driving mechanism includes a driving motor fixedly connected to one side of the limiting plate opposite to the expansion and contraction mechanism, a driving screw coaxially fixed on the output shaft of the driving motor, and a driving bracket fixedly connected between two limiting blocks connected to the same limiting plate, the driving screw being threadedly connected to the driving bracket.

[0010] By adopting the above technical solution, the drive motor can drive the drive screw to rotate, thereby causing the drive bracket to move closer to or away from the limit plate. The movement of the drive bracket can then cause the corresponding limit blocks to move closer to or away from the expansion and contraction mechanism. This design allows the limit blocks to accurately approach or move away from the expansion and contraction mechanism, effectively adjusting the constraint state of the limit plate on the strip steel and improving stability during the uncoiling process. Furthermore, this solution simplifies the drive structure and reduces the manufacturing and maintenance costs of the equipment.

[0011] Preferably, a limiting block is threadedly connected to the end of the drive screw away from the drive motor, and the limiting block is located on the side of the drive bracket away from the drive motor.

[0012] By adopting the above technical solution, the limiting block is threadedly connected to the end of the drive screw away from the drive motor and located on the side of the drive bracket opposite to the drive motor, thereby effectively limiting the range of motion of the drive bracket and reducing the occurrence of the drive bracket disengaging from the drive screw. Combined with the overall design of the drive mechanism, this solution further improves the stability and safety of equipment operation.

[0013] Preferably, a stop plate is fixedly connected to the side of the drive bracket near the drive motor, and a stop block is fixedly connected to the side of each limit plate away from the expansion and contraction mechanism. When the stop plate contacts the stop block, the end of the limit block near the expansion and contraction mechanism protrudes from the limit plate.

[0014] By adopting the above technical solution, the cooperation between the stop plate and the stop block can accurately control the movement range of the limit block. When the stop plate contacts the stop block, it ensures that the end of the limit block near the expansion and contraction mechanism protrudes from the limit plate. The thickness of the limit block protruding from the limit plate limits the distance between the steel coil and the limit plate.

[0015] Preferably, the stop plate is penetrated by each limiting block, and the drive bracket is threaded with a bolt. One end of the bolt penetrates the stop plate and is threaded with two nuts, which clamp the stop plate.

[0016] By adopting the above technical solution, the distance between the stop plate and the drive bracket can be flexibly adjusted, thereby precisely controlling the thickness of the limit block protruding from the limit plate.

[0017] Preferably, the limiting block and the corresponding drive bracket are fastened together by screws.

[0018] By adopting the above technical solution, the limit block and the drive bracket are fastened together with screws, making the installation of the limit block more stable and reliable, thereby improving the stability of equipment operation. At the same time, this connection method facilitates the disassembly and maintenance of the limit block, allowing for quick operation when adjustments or replacements are needed, thus improving equipment maintenance efficiency.

[0019] Preferably, the limiting block is an elastic block.

[0020] By adopting the above technical solution, the elastic block can effectively reduce the rigid contact between the limiting block and the steel coil during installation, thereby reducing the damage to the surface of the steel coil.

[0021] Preferably, a plurality of limiting fans are fixedly connected to the periphery of the limiting disk.

[0022] By adopting the above technical solution, multiple limiting fans are fixedly connected to the periphery of the limiting plate, which not only increases the overall size of the limiting plate but also forms a more effective blocking structure during the strip uncoiling process. This design ensures greater stability of the steel coil during uncoiling, effectively reducing the occurrence of the steel coil detaching from the expansion and contraction mechanism, thereby improving the reliability and safety of the equipment.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The limit plate can effectively reduce the occurrence of strip steel detaching from the expansion and contraction mechanism during the uncoiling process;

[0025] 2. The drive motor, in conjunction with the drive screw and the drive bracket, forms a threaded connection, enabling precise control of the limit block position;

[0026] 3. It simplifies the operation process of the equipment, improves the overall work efficiency, and reduces the difficulty of operation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram illustrating the overall structure of the uncoiler in an embodiment of this application.

[0028] Figure 2 This is a cross-sectional view illustrating the drive mechanism in an embodiment of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Base plate; 11. Hydraulic cylinder; 2. Support body; 21. Connecting groove; 3. Rotating shaft; 4. Expansion / contraction mechanism; 5. Limiting plate; 51. Through hole; 52. Limiting fan; 6. Limiting block; 7. Drive mechanism; 71. Drive motor; 72. Drive screw; 73. Drive bracket; 74. Limiting block; 75. Stop plate; 76. Stop block; 77. Bolt; 78. Nut. Detailed Implementation

[0030] The following is in conjunction with the appendix Figures 1-2 This application will be described in further detail.

[0031] This application discloses a bidirectional propulsion strip uncoiler. (Refer to...) Figure 1 and Figure 2 The uncoiler includes a base plate 1, two support bodies 2, and a rotating shaft 3 rotatably connected to each support body 2. An expansion / contraction mechanism 4 is installed at one end of each rotating shaft 3 that is close to each other. A limit plate 5 is also fixedly connected to each rotating shaft 3, and the two expansion / contraction mechanisms 4 are located between the two limit plates 5. Each support body 2 is slidably connected to the base plate 1. Two hydraulic cylinders 11 are fixedly connected to the base plate 1. A connecting groove 21 is provided on one of the opposite sides of each support body 2. One hydraulic cylinder 11 corresponds to one connecting groove 21, and the piston rod of the hydraulic cylinder 11 extends into the connecting groove 21 and is fixedly connected to the bottom wall of the connecting groove 21.

[0032] Each limiting plate 5 has four through holes 51, which are evenly distributed around the circumference of the limiting plate 5. Each through hole 51 is slidably connected to a limiting block 6, and each limiting plate 5 is equipped with a drive mechanism 7 that drives each limiting block 6 on the corresponding limiting plate 5 to move along the axis of the rotating shaft 3.

[0033] When installing the steel coil, place the coil between the two expansion and contraction mechanisms 4, and activate the two hydraulic cylinders 11 to move the two support bodies 2 closer together until each expansion and contraction mechanism 4 is inserted into the inner ring of the steel coil, and simultaneously the limit blocks 6 on each limit plate 5 abut against the end face of the steel coil. Stop the two hydraulic cylinders 11, activate each expansion and contraction mechanism 4 to open and press against the inner ring of the steel coil, and simultaneously activate the drive mechanism 7 to retract each limit block 6 into the through hole 51, disengaging the limit blocks 6 from the steel coil. At this point, the strip steel can be pulled to unwind.

[0034] Each limiting block 6 is an elastic block, which reduces the possibility of damage to the steel coil when the limiting block 6 comes into contact with the steel coil.

[0035] Reference Figure 1 and Figure 2The drive mechanism 7 includes a drive motor 71 fixedly connected to the side of the limiting plate opposite to the expansion and contraction mechanism 4. The output shaft of the drive motor 71 is parallel to the axis of the rotating shaft 3, and a drive screw 72 is coaxially fixed on the output shaft. The same drive bracket 73 is fixedly connected between the four limiting blocks 6 connected to the same limiting plate 5. The rotating shaft 3 passes through the drive bracket 73, and the drive screw 72 passes through the drive bracket 73 and is threadedly connected to the drive bracket 73. The drive motor 71 can be a servo motor or a stepper motor, which can achieve precise control.

[0036] The limiting block 6 and the drive bracket 73 are fastened together by screws. Multiple limiting fans 52 are fixedly connected to the periphery of the limiting plate 5. The function of the limiting fans 52 is to increase the overall rigidity of the limiting plate 5 and increase the size of the limiting plate 5. The number of limiting fans 52 can be adjusted according to actual needs, and is generally set to 4 to 6, evenly distributed on the periphery of the limiting plate 5.

[0037] A limiting block 74 is threadedly connected to the end of the drive screw 72 away from the drive motor 71. The limiting block 74 is located on the side of the drive bracket 73 opposite to the drive motor 71. This design can reduce the occurrence of excessive rotation of the drive screw 72 during operation and reduce the occurrence of the drive bracket 73 disengaging from the drive screw 72.

[0038] A stop plate 75 is detachably connected to one side of the drive bracket 73 near the drive motor 71. The stop plate 75 is penetrated by the rotating shaft 3. Each limit plate 5 has a stop block 76 fixedly connected to the side facing away from the expansion and contraction mechanism 4. When the stop plate 75 contacts the stop block 76, the end of the limit block 6 near the expansion and contraction mechanism 4 protrudes from the limit plate 5. The stop plate 75 and the stop block 76 are designed to limit the maximum extension length of the limit block 6, thereby limiting the distance between the steel coil and the limit plate 5.

[0039] The stop plate 75 is penetrated by each limit block 6. Two bolts 77 are threadedly connected to the drive bracket 73. One end of each bolt 77 penetrates the stop plate 75 and is threadedly connected to two nuts 78. The two nuts 78 clamp the stop plate 75, making it easy to adjust the position of the stop plate 75.

[0040] The implementation principle of a bidirectional propulsion strip uncoiler according to an embodiment of this application is as follows: A drive motor 71 drives a drive screw 72 to rotate. The drive screw 72 is threadedly connected to a drive bracket 73, causing the drive bracket 73 to move axially along the drive screw 72. The movement of the drive bracket 73 causes a limiting block 6 to extend and retract along the direction of the rotating shaft 3. When the limiting block 6 extends, it can press against the steel coil, assisting in the installation of the steel coil. After the steel coil is installed, the drive motor 71 is controlled to rotate in the opposite direction, thereby causing the limiting block 6 to disengage from the steel coil.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bidirectional propelling type strip steel uncoiler, comprising two supporting bodies (2) and a rotating shaft (3) connected to each supporting body (2), and a stretching and shrinking mechanism (4) is installed on the end of each rotating shaft (3) close to each other, characterized in that: Each rotating shaft (3) is also fixedly connected with a limiting disc (5), two expansion and contraction mechanisms (4) are located between the two limiting discs (5), at least two through holes (51) are formed in each limiting disc (5), each through hole (51) is slidably connected with a limiting block (6), and each limiting disc (5) is provided with a driving mechanism (7) for driving each limiting block (6) on the corresponding limiting disc (5) to move along the direction of the rotating shaft (3).

2. A dual drive pay-off reel according to claim 1, characterized in that: The driving mechanism (7) comprises a driving motor (71) fixedly connected with the side of the limiting disc away from the expansion and contraction mechanism (4), a driving lead screw (72) is fixedly connected with the output shaft of the driving motor (71), and a driving bracket (73) is fixedly connected between the two limiting blocks (6) connected with the same limiting disc (5); the driving lead screw (72) is in threaded connection with the driving bracket (73).

3. A dual drive pay-off reel according to claim 2, characterized in that: One end of the driving lead screw (72) away from the driving motor (71) is in threaded connection with a limiting block (74), and the limiting block (74) is located on the side of the driving bracket (73) away from the driving motor (71).

4. A dual drive pay-off reel as claimed in claim 2, wherein: The side of the driving bracket (73) close to the driving motor (71) is fixedly connected with a stop plate (75), the side of each limiting disc (5) away from the expansion and contraction mechanism (4) is fixedly connected with a stop block (76), and when the stop plate (75) contacts the stop block (76), one end of the limiting block (6) close to the expansion and contraction mechanism (4) protrudes from the limiting disc (5).

5. A dual drive pay-off reel according to claim 4, characterized in that: The stop plate (75) is penetrated by each limiting block (6), the driving bracket (73) is in threaded connection with a bolt (77), one end of the bolt (77) penetrates the stop plate (75) and is in threaded connection with two nuts (78), and the two nuts (78) clamp the stop plate (75).

6. A dual drive pay-off reel according to claim 2, characterized in that: The limiting block (6) is in screw fastening connection with the corresponding driving bracket (73).

7. A dual drive pay-off reel as claimed in claim 1, wherein: The limiting block (6) is an elastic block.

8. A dual drive pay-off reel according to claim 1, characterized in that: The limiting disc (5) is fixedly connected with a plurality of limiting fans (52) on the circumferential side.

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