Coil longitudinal slitting assembly for strip production

Abstract

The utility model provides a strip longitudinal shearing and slitting assembly for strip production, including support frame body, metal cutter cover and accurate internal thread ring, the first guide roller group and the second guide roller group are installed respectively in support frame body upper end left and right sides, the right end of first guide roller group and the second guide roller group all are installed with hollow guide frame, the inside of two hollow guide frames is slidably provided with guide bearing in front and back end, this design has solved the original strip longitudinal shearing and slitting device cutter limiting disc and slitting cutting knife position fixed, if the production personnel need to carry out the rest width of strip longitudinal shearing and slitting processing to strip, need to reinstallation the cutter of rest interval, more waste processing time problem, the utility model designs a novel cutter shaft and cutter combination structure, can according to strip production and processing demand, carry out the quick adjustment of cutter position, so as to facilitate the rest width of slitting strip longitudinal shearing and slitting processing use.

Description

Technical Field

[0001] This utility model is a slitting assembly for strip steel production, belonging to the field of strip steel processing technology. Background Technology

[0002] In strip steel production and processing, slitting is a key process that cuts wide coils (typically 1-2m wide) longitudinally into multiple narrow strips (50-500mm wide). This process is widely used in automotive steel sheets, appliance panels, and construction steel. Slitting accuracy (width error ≤ ±0.1mm) and cut quality (no burrs, no collapsed edges) directly affect the product qualification rate of subsequent rolling, stamping, and other processes.

[0003] Chinese patent CN212917836U discloses a strip steel slitting device that reinforces the slitting cutter to ensure smooth rotation and facilitate strip steel slitting. Simultaneously, a shock-absorbing ring provides cushioning during slitting, effectively reducing noise and simplifying operation. However, the fixed position of the cutter limiting disc and the slitting cutter limits slitting to only one width. If production personnel need to slitting strips of other widths, cutters of different spacings must be reinstalled, wasting processing time. There is an urgent need for a strip steel coil slitting assembly to address these issues. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a slitting assembly for strip steel production to solve the problems mentioned in the background technology. This utility model designs a novel combination structure of cutter shaft and cutter, which can quickly adjust the position of the cutter according to the needs of strip steel production and processing, thereby facilitating the slitting of strips of other widths.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a strip steel coil slitting assembly, comprising a support frame, metal blade sleeves, and precision internal threaded rings. A first guide roller group and a second guide roller group are respectively installed on the left and right sides of the upper end of the support frame. A hollow guide frame is installed on the right end of both the first and second guide roller groups. Guide bearings are slidably installed at the front and rear ends inside the two hollow guide frames. Two vertical plates are welded to the middle of the upper end of the support frame, and two blade shafts are horizontally installed between the two vertical plates via ball bearings. Multiple arc-shaped metal seats are fixed to the outside of the two blade shafts at equal angles via bolts. Multiple positioning screw grooves are opened on the outside of the two blade shafts. Multiple metal blade sleeves are provided, and a ring-shaped blade body is fixed to the rear end of each of the multiple metal blade sleeves. The multiple metal blade sleeves are respectively sleeved on the outside of the multiple arc-shaped metal seats. A positioning block is fixed to the inner side of each of the multiple metal blade sleeves. Precision internal threaded rings are threaded onto the outside of each of the multiple arc-shaped metal seats, and the multiple precision internal threaded rings abut against the multiple ring-shaped blade bodies.

[0006] Furthermore, each of the guide bearings has an internal helical tube installed longitudinally at its upper end, and each of the two hollow guide frames has a stroke groove extending through its upper end.

[0007] Furthermore, the upper ends of the plurality of internal helical tubes are respectively slidably located at the front and rear ends of the two travel grooves, and the upper ends of the plurality of internal helical tubes are threaded with flanged bolts.

[0008] Furthermore, two servo motors and a PLC control panel are installed at the front end of the front upright plate. The shafts of the two servo motors are respectively connected to two tool shafts, and the PLC control panel is connected to the power supply terminals of the two servo motors through wires.

[0009] Furthermore, the plurality of positioning blocks are slidably located at the gaps between the plurality of arc-shaped metal seats, and hand-tightening screws are installed through the exterior of the plurality of positioning blocks.

[0010] Furthermore, the threaded ends of multiple hand-tightened screws are respectively inserted into multiple positioning screw grooves at corresponding positions.

[0011] The beneficial effects of this utility model are as follows: The strip steel production coil slitting assembly of this utility model has a reasonable structure due to the addition of a hollow guide frame, flange bolts, internal threaded tube, guide bearing, cutter shaft, arc-shaped metal seat, positioning block, metal cutter sleeve and precision internal threaded ring. The design of a novel cutter shaft and cutter combination structure can quickly adjust the cutter position according to the strip steel production and processing requirements, thereby facilitating the slitting of strip steel of other widths. It can also provide auxiliary guidance for the strip steel, making it highly practical. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of the strip steel production coil slitting assembly of this utility model; Figure 2 This is an enlarged structural diagram of the positioning block of the strip steel production coil slitting assembly of this utility model; Figure 3 This is a schematic diagram of the internal spiral tube structure of the strip steel production coil slitting assembly of this utility model.

[0013] In the diagram: 1-Support frame, 2-First guide roller group, 3-Second guide roller group, 4-Hollow guide frame, 5-Stroke groove, 6-With flange bolt, 7-Internal threaded tube, 8-Guide bearing, 9-Servo motor, 10-PLC control panel, 11-Cut shaft, 12-Arc-shaped metal seat, 13-Positioning screw groove, 14-Positioning block, 15-Metal cutter sleeve, 16-Ring cutter body, 17-Precision internal threaded ring. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] Please see Figures 1-3 This utility model provides a technical solution: a strip steel coil slitting assembly, including a support frame 1, a metal blade sleeve 15, and a precision internal thread ring 17. A first guide roller group 2 and a second guide roller group 3 are respectively installed on the left and right sides of the upper end of the support frame 1. Hollow guide frames 4 are installed on the right ends of both the first guide roller group 2 and the second guide roller group 3. Guide bearings 8 are slidably installed at the front and rear ends inside the two hollow guide frames 4. Two vertical plates are welded to the middle of the upper end of the support frame 1, and two blade shafts 11 are horizontally installed between the two vertical plates via ball bearings. Multiple arc-shaped metal seats 12 are fixed to the outside of the two blade shafts 11 at equal angles by bolts. Multiple positioning screws are provided on the outside of each of the two blade shafts 11. The groove 13 has multiple metal blade sleeves 15, and each of the multiple metal blade sleeves 15 has a ring-shaped cutter body 16 fixed at its rear end. The multiple metal blade sleeves 15 are respectively fitted onto the outside of multiple arc-shaped metal seats 12. Each of the multiple metal blade sleeves 15 has a positioning block 14 fixed on its inner side. Each of the multiple arc-shaped metal seats 12 has a precision internal thread ring 17 threaded onto its outer side. The multiple precision internal thread rings 17 abut against the multiple ring-shaped cutter bodies 16. This design solves the problem that in the original strip steel slitting and cutting device, the cutter limit plate and the slitting cutter are fixed in position. Once the production personnel need to perform slitting and cutting of strip steel of other widths, it is necessary to reinstall cutters of other spacings, which is a waste of processing time.

[0016] As the first embodiment of this utility model: multiple guide bearings 8 are each longitudinally mounted with an inner threaded tube 7 at their upper ends. The upper ends of two hollow guide frames 4 are each provided with a stroke groove 5. The upper ends of the multiple inner threaded tubes 7 are respectively slidably located at the front and rear ends of the two stroke grooves 5. The upper ends of the multiple inner threaded tubes 7 are each threaded with flanged bolts 6. The multiple flanged bolts 6 are fixed to the multiple inner threaded tubes 7 by passing through the two stroke grooves 5 at the lower end. They can be fixed to the upper ends of the two hollow guide frames 4 by their flange faces, thereby realizing the positioning and installation of multiple guide bearings 8. The multiple guide bearings 8 will limit and guide the strip steel and the processed strip, which is easy to adjust, so as to facilitate the use of strip steel of different widths.

[0017] Two servo motors 9 and a PLC control panel 10 are installed at the front end of the front upright plate. The shaft ends of the two servo motors 9 are respectively connected to the two cutter shafts 11. The PLC control panel 10 is connected to the power terminals of the two servo motors 9 through wires. The two servo motors 9 can provide power to the two cutter shafts 11, thereby driving the rotation of multiple ring cutter bodies 16. The PLC control panel 10 can realize the synchronous control of the two servo motors 9.

[0018] Multiple positioning blocks 14 are slidably positioned at the gaps between multiple arc-shaped metal seats 12, and each positioning block 14 is externally fitted with a hand-tightening screw. By adding multiple positioning blocks 14 and fixing them to multiple metal tool sleeves 15, rotation of the metal tool sleeves 15 outside the arc-shaped metal seats 12 is prevented. The threaded ends of the multiple hand-tightening screws are inserted into corresponding positioning screw grooves 13, thus limiting and fixing the positioning blocks 14 and also enabling the installation of the annular tool body 16.

[0019] As a second embodiment of this utility model: the support frame 1 serves as the overall support, and the first guide roller group 2 and the second guide roller group 3 are responsible for the introduction and export of the strip steel. The core shearing function is realized by two cutter shafts 11 and the cutter assembly mounted on them. The cutter (ring cutter body 16) is fixed between the metal cutter sleeve 15 and the precision internal thread ring 17, and the metal cutter sleeve 15 is connected to the cutter shaft 11 with a positioning screw groove 13 through the positioning block 14 and the hand screw, realizing the axial adjustability of the cutter; The operator sets the corresponding parameters on the PLC control panel 10 according to the required slitting width and number of slits for this production task. The PLC controller calculates the target axial position of each ring cutter body 16 on the cutter shaft 11 based on these parameters. For cutters that need to be adjusted, first loosen the corresponding hand screw to disengage the positioning block 14 from the positioning screw groove 13 on the cutter shaft 11, thus releasing the axial lock. Then, rotate the precision internal thread ring 17 corresponding to the cutter assembly. Since the precision internal thread ring 17 and the arc-shaped metal seat 12 are threadedly engaged, and the metal cutter sleeve 15 is anti-rotational but axially sliding with the cutter shaft 11 through the positioning block 14, rotating the precision internal thread ring 17 will drive the metal cutter sleeve 15 and the ring cutter body 16 to move slightly along the axial direction of the cutter shaft 11. This allows for precise adjustment of the position of the ring cutter body 16. Once all the ring cutter bodies 16 are adjusted to the target position, tighten each hand screw to make the positioning block 14 fit tightly into the current positioning screw groove 13, thus firmly locking the cutter assembly onto the cutter shaft 11 and preventing movement during high-speed shearing.

[0020] Then, depending on the thickness of the strip, the internal threaded tube 7 can be pushed forward or backward, causing it to slide within the travel groove 5, thereby changing the position of multiple guide bearings 8. Next, multiple flanged bolts 6 are tightened, forcing them to pass through the two lower travel grooves 5 and connect with the internal threaded tubes 7. The flanged bolts 6 can also be fixed to the upper ends of the two hollow guide frames 4 using their flange faces, thus achieving the positioning and installation of the multiple guide bearings 8, and thus realizing the guiding and limiting of the front and rear ends of the strip. The equipment is started, and the servo motor 9 drives the upper and lower cutter shafts 11 to rotate the annular cutter body 16 at high speed. The wide strip is introduced from the first guide roller group 2, and after being sheared by the upper and lower cutters, it is slit into multiple narrow strips of a preset width, finally being led out by the second guide roller group 3. During this process, the wide strip and the processed slit strip move smoothly against the outer annular surface of the multiple guide bearings 8.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A strip steel slitting assembly for production, comprising a support frame (1), a metal blade sleeve (15), and a precision internal thread ring (17), characterized in that: The support frame (1) is equipped with a first guide roller group (2) and a second guide roller group (3) on the left and right sides of its upper end, respectively. A hollow guide frame (4) is installed on the right end of both the first guide roller group (2) and the second guide roller group (3). Guide bearings (8) are slidably installed at the front and rear ends of the two hollow guide frames (4). Two vertical plates are welded to the middle of the upper end of the support frame (1), and two cutter shafts (11) are horizontally installed between the two vertical plates by ball bearings. Multiple arc-shaped metal seats (12) are fixed to the outside of the two cutter shafts (11) by bolts at equal angles. The cutter shaft (11) is provided with multiple positioning screw grooves (13) on its outside. Multiple metal cutter sleeves (15) are provided. The rear end of each of the multiple metal cutter sleeves (15) is fixed with an annular cutter body (16). The multiple metal cutter sleeves (15) are respectively sleeved on the outside of multiple arc-shaped metal seats (12). The inner side of each of the multiple metal cutter sleeves (15) is fixed with a positioning block (14). The outside of each of the multiple arc-shaped metal seats (12) is provided with a precision internal thread ring (17) through a thread. The multiple precision internal thread rings (17) abut against the multiple annular cutter bodies (16) respectively.

2. The strip steel production coil slitting assembly according to claim 1, characterized in that: The upper end of each of the guide bearings (8) is longitudinally fitted with an inner helical tube (7), and the upper end of each of the two hollow guide frames (4) is provided with a stroke groove (5).

3. The strip steel production coil slitting assembly according to claim 2, characterized in that: The upper ends of the multiple internal helical tubes (7) are respectively slidably located at the front and rear ends of the two stroke grooves (5), and the upper ends of the multiple internal helical tubes (7) are threaded with flange bolts (6).

4. The strip steel production coil slitting assembly according to claim 1, characterized in that: Two servo motors (9) and a PLC control panel (10) are installed at the front end of the front upright plate. The shaft ends of the two servo motors (9) are respectively connected to two cutter shafts (11). The PLC control panel (10) is connected to the power supply terminals of the two servo motors (9) through wires.

5. The strip steel production coil slitting assembly according to claim 1, characterized in that: Multiple positioning blocks (14) are slidably located at the gaps between multiple arc-shaped metal seats (12), and hand-tightening screws are installed through the exterior of multiple positioning blocks (14).

6. The strip steel production coil slitting assembly according to claim 5, characterized in that: Multiple hand-tightened screws are inserted into multiple positioning screw grooves (13) at corresponding positions.

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