Mechanical jaw wedge type reel

Abstract

The application discloses a mechanical jaw inclined wedge type reel, which comprises a pull rod, a main shaft, an axial inclined wedge, a radial inclined wedge, a cross head, three fan-shaped plates, a spring assembly, a power assembly and a mechanical jaw assembly. The mechanical jaw assembly comprises a jaw fan-shaped plate, a torsion bar, a jaw plate and a pressing part. The jaw fan-shaped plate is provided with a plurality of protruding connecting blocks I along the length direction, the jaw plate is provided with a plurality of protruding connecting blocks II along the length direction, the connecting blocks I and the connecting blocks II are inserted into the opposite gaps, the main shaft is processed with a circular groove along the length direction, the circular parts of the connecting blocks I and the connecting blocks II are located in the groove, and the torsion bar passes through the inner holes of the connecting blocks I and the connecting blocks II to connect the jaw fan-shaped plate and the jaw plate. The application realizes the reset of the mechanical jaw fan-shaped plate through the torsion bar, reduces the subtractive machining amount of the jaw fan-shaped plate, enhances the strength of the jaw fan-shaped plate, simplifies the structure of the jaw and reduces the production cost.

Description

Technical Field

[0001] The invention relates to an inclined wedge-type reel of a coiler and belongs to the field of machinery. Background Art

[0002] Coilers, which can coil extra-long metal strips into coils, are essential equipment in strip production lines. The coiler, the core component of the coiler, has expansion and contraction capabilities, expanding to coil the strip and contracting to unload it. A mechanical jaw assembly secures the strip's head during the coiling process, facilitating coiling and adapting to varying strip thicknesses.

[0003] Currently, mechanical jaw assemblies utilize springs installed on jaw sector plates as force-applying elements for resetting the sector plates and clamping the jaws. This has the following disadvantages: 1. Multiple holes must be machined along the length of the jaw sector plates to accommodate multiple spring reset units, which reduces the strength of the jaw sector plates and shortens their service life; 2. The multiple spring reset units are complex in structure, making machining, assembly, and maintenance difficult, increasing production costs. Furthermore, the bearings connecting the drum to the machine body are secured with nuts, which require a separate machine. This increases manufacturing costs, is cumbersome to install, and is difficult to maintain. Furthermore, these nuts can become loose over time. Summary of the Invention

[0004] The problem to be solved by the present invention is to provide a wedge-shaped reel for a mechanical jaw, which realizes the reset of the mechanical jaw sector plate through a torsion bar, thereby reducing the amount of material reduction processing on the jaw sector plate, enhancing the strength of the jaw sector plate, simplifying the jaw structure, and reducing production costs. At the same time, the present invention can achieve reliable positioning of the bearing and simplify the bearing positioning mechanism.

[0005] The present invention provides a wedge-type reel for mechanical jaws, which includes a pull rod, a main shaft, an axial wedge, a radial wedge, a crosshead, three fan-shaped plates, a spring assembly, a power assembly, and a mechanical jaw assembly. The mechanical jaw assembly includes a jaw fan-shaped plate, a torsion bar, a jaw plate, and a clamping part; the jaw fan-shaped plate is provided with a plurality of protruding connecting blocks I along the length direction, and the jaw plate is provided with a plurality of protruding connecting blocks II along the length direction, and the connecting blocks I and the connecting blocks II are inserted into the opposite gaps; the main shaft is processed with a circular groove along the length direction, and the circular parts of the connecting blocks I and the connecting blocks II are located in the groove; the torsion bar passes through the inner holes of the connecting blocks II and the connecting blocks II to connect the jaw fan-shaped plate and the jaw plate.

[0006] Furthermore, the torsion bar is made of spring steel.

[0007] Furthermore, the number of connecting blocks I on the jaw sector plate and the connecting blocks II on the jaw plate are equal and the concave and convex parts are matched, and the left and right ends of the torsion bar are connected to the connecting blocks I and II respectively.

[0008] Furthermore, the left and right ends of the torsion bar are non-circular; the inner holes of the connecting blocks I and II at the left and right ends are non-circular; the non-circular shape of the torsion bar exterior is the same as the non-circular shape of the inner holes of the connecting blocks I and II.

[0009] Furthermore, the two ends of the torsion bar are preferably regular polygons, and the inner holes of the connecting blocks I and II at the left and right ends are preferably regular polygons.

[0010] Furthermore, the middle of the torsion bar is circular; the inner holes of the connecting block I and the connecting block II located in the middle are both circular; the circular inner holes of the connecting block I and the connecting block II are slightly larger than the circumscribed circles of the regular polygons at both ends of the torsion bar.

[0011] Furthermore, the outer diameter of the torsion bar is smaller than the diameter of the circular inner holes of the connecting block I and the connecting block II.

[0012] Furthermore, one of the inner holes of the connecting block I and the connecting block II at the left end and the right end is a blind hole.

[0013] Furthermore, the clamping part includes a jaw strip, a plurality of clamping units evenly distributed along the length direction of the jaw plate, and each clamping unit includes a spring seat and a spring; the jaw plate is processed with a long groove along the length direction, and a plurality of mounting holes are evenly distributed along the length direction at the bottom of the long groove, the spring seat is arranged in the mounting hole, the spring is installed in the spring seat, and the jaw strip is arranged in the long groove and in contact with the spring seat.

[0014] Furthermore, the inclined wedge reel also includes a bearing limit assembly, which includes a limit block and two half rings. The limit block is sleeved on the main shaft and presses the positioning bearing; the two half rings are clamped in the groove of the main shaft and combined into a whole, and the half rings and the limit block are pressed by the inclined surface.

[0015] The advantages of the inclined wedge reel of the present invention are: 1. A torsion bar is used as the reset mechanism of the mechanical jaw sector plate, which reduces the amount of material reduction processing on the jaw sector plate. In this way, while ensuring the function of the jaw assembly, the strength of the jaw sector plate is enhanced and the service life is extended; 2. The use of a single torsion bar part replaces the existing multiple spring reset units, simplifies the structure of the jaw, makes processing, assembly and maintenance very simple, and reduces production costs; 3. Two half rings with inclined surfaces are used to limit the movement of the limit block, thereby ensuring reliable limiting of the bearing, simplifying the bearing limiting mechanism, eliminating the conventional operation of vehicle assembly, low manufacturing cost, and easy installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of an oblique wedge-type reel with a mechanical jaw according to the present invention.

[0017] Figure 2 It is along Figure 1 Sectional view along line AA.

[0018] Figure 3 It is a schematic diagram of the jaw sector plate.

[0019] Figure 4 This is a diagram of the jaw plate Figure 1 .

[0020] Figure 5 This is a diagram of the jaw plate Figure 2 . DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1

[0023] from Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 It can be seen that the present invention provides a wedge-type reel for mechanical jaws: it includes a pull rod 1, a main shaft 8, an axial wedge 9, a radial wedge 10, a crosshead 11, three fan-shaped plates 12, a spring assembly 13, a power assembly 14, and a mechanical jaw assembly; the mechanical jaw assembly includes a jaw fan-shaped plate 2, a torsion bar 3, a jaw plate 7, and a clamping part; the jaw fan-shaped plate 2 is provided with a plurality of protruding connecting blocks I21 along the length direction, and the jaw plate 7 is provided with a plurality of protruding connecting blocks II71 along the length direction, and the connecting blocks I21 and II71 are inserted into the opposite gaps; the main shaft 8 is processed with a circular groove 81 along the length direction, and the circular parts of the connecting blocks I21 and II71 are located in the groove 81; the torsion bar 3 passes through the inner holes of the connecting blocks II71 and II21 to connect the jaw fan-shaped plate 2 and the jaw plate 7.

[0024] from Figure 1It can be seen that in the inclined wedge reel of the mechanical jaws of the present invention: the pull rod 1 passes through the hole of the main shaft 8, its left end is connected to the crosshead 11, and the right end is connected to the power assembly 14; the mechanical jaw assembly and the three fan-shaped plates 12 are evenly distributed on the outside of the main shaft 8 along the circumferential direction, and the gap between the mechanical jaw assembly and the three fan-shaped plates 12 is provided with an axial inclined wedge 9 and multiple radial inclined wedges 10. The three fan-shaped plates 12 are connected to the main shaft 8 through a spring assembly 13, and the mechanical jaw assembly is connected to the main shaft 8. The working principle of the inclined wedge reel of the present invention is as follows: the reel is in a reduced diameter state and the jaws are in an open state before winding the strip; when the strip needs to be wound, the head of the strip is first placed into the jaws, and then the power assembly 14 pulls the pull rod 1 and the crosshead 11 to move to the right, the main shaft 8 drives the axial inclined wedge 9 to move to the right, the radial inclined wedge 10 moves outward, and pushes the jaw sector plate 2 and the jaw plate 7 to expand outward, the jaw sector plate 2 pushes the torsion bar 3 to rotate clockwise, and the jaw plate 7 pushes the torsion bar 3 to rotate counterclockwise, and the torsion bar 3 is twisted to accumulate potential energy; at this time, the jaw sector plate 2 and the jaw plate 7 close to clamp the strip head, thereby performing the winding operation; when the winding is completed, the power assembly 14 pulls the pull rod 1 and the crosshead 11 to move to the left, and the main shaft 8 drives the axial inclined wedge 9 to move to the left. At this time, the torsion bar 3 releases the potential energy to push the jaw sector plate 2 to rotate counterclockwise and the jaw plate 7 to rotate clockwise, thereby causing the radial inclined wedge 10 in contact with it to move inward, and at the same time, the jaw sector plate 2 and the jaw plate 7 shrink inward. At this time, the jaws between the jaw sector plate 2 and the jaw plate 7 open to release the strip head, thereby removing the steel coil from the coiler. At the same time, when the crosshead 11 moves to the right, under the action of the axial inclined wedge 9 and the radial inclined wedge 10, the three sector plates 12 are pushed outward to expand to realize the winding of the steel coil. At this time, the spring on the upper part of the spring member 13 is extended; when the crosshead 11 moves to the left, the axial inclined wedge 9 is driven to move to the left. Under the action of the spring force on the upper part of the spring member 13, the sector plates 12 are pushed inward to contract to realize the removal of the steel coil.

[0025] The inclined wedge-type reel of the present invention realizes the reset of the mechanical jaw sector plate through the torsion rod, thereby replacing the existing multiple spring reset units, reducing the amount of material reduction processing on the jaw sector plate, enhancing the strength of the jaw sector plate, and extending the service life, and simplifying the structure of the jaw, making processing, assembly and maintenance very simple, and reducing production costs.

[0026] Example 2

[0027] The oblique wedge type reel of the present invention: the material of the torsion bar 3 is spring steel.

[0028] The material of the torsion bar 3 is selected from the material for making a spring, so as to ensure that the torsion bar 3 can be twisted to accumulate potential energy and release the potential energy later.

[0029] Example 3

[0030] from Figure 3It can be seen that the inclined wedge-type reel of the present invention has a torsion bar 3 of a solid structure.

[0031] The torsion bar 3 is a solid structure, which improves its strength, avoids its breakage during operation, and ensures its reliability.

[0032] Example 4

[0033] from Figure 2 、 Figure 3 、 Figure 4 It can be seen that the inclined wedge reel of the present invention: the connecting block I21 on the jaw sector plate 2 and the connecting block II71 on the jaw plate 7 are matched with each other in concave and convex manner, and the left and right ends of the torsion bar 3 are connected to the connecting block I21 and the connecting block II71 respectively.

[0034] The left and right ends of the torsion bar 3 are connected to the connecting block I21 and the connecting block II71 respectively, which can achieve reliable connection with the jaw sector plate 2 and the jaw plate 7. Here, the left and right ends of the torsion bar 3 can also be connected to the connecting block II71 and the connecting block I21 respectively.

[0035] Example 5

[0036] from Figure 3 、 Figure 4 It can be seen that the inclined wedge reel of the present invention: the left and right ends of the torsion rod 3 are non-circular; the inner holes of the connecting blocks Ⅰ21 and Ⅱ72 at the left and right ends are non-circular; the non-circular shape of the outside of the torsion rod 3 and the non-circular shape of the inner holes of the connecting blocks Ⅰ21 and Ⅱ7 are the same in size and shape.

[0037] The torsion bar 3 is tightly matched with the inner hole of the connecting block Ⅰ21 at one end and the inner hole of the connecting block Ⅱ71 at the other end through the non-circular shapes at both ends to prevent rotation between the jaw sector plate 2, the jaw plate 7 and the torsion bar 3. This not only ensures the reliability of the connection between the torsion bar 3 and the jaw sector plate 2 and the jaw plate 7, but also provides a basic point of force for the torsion of the torsion bar 3.

[0038] In order to facilitate the processing of parts, the two ends of the torsion bar 3 are preferably regular polygons, and the inner holes of the connecting blocks I 21 and II 71 at the left and right ends are preferably regular polygons.

[0039] Example 6

[0040] from Figure 3 、 Figure 4 It can be seen that the inclined wedge reel of the present invention: the middle of the torsion rod 3 is circular; the inner holes of the connecting block I21 and the connecting block II71 located in the middle are both circular; the circular inner holes of the connecting block I21 and the connecting block II71 are slightly larger than the circumscribed circles of the regular polygons at both ends of the torsion rod 3.

[0041] The circular inner holes of the intermediate connecting block Ⅰ21 and the connecting block Ⅱ71 are slightly larger than the circumscribed circles of the regular polygons at both ends of the torsion rod 3, which can ensure that the regular polygon at one end of the torsion rod 3 can be inserted into the inner hole of the regular polygon at the outermost end through the circular inner hole, thereby realizing the connection between the torsion rod 3 and the jaw sector plate 2 and the jaw plate 7.

[0042] Example 7

[0043] The oblique wedge-type reel of the present invention has an outer diameter of the torsion bar 3 that is smaller than the diameters of the circular inner holes of the connecting block I 21 and the connecting block II 71 .

[0044] In this way, on the premise of ensuring that the torsion bar 3 can be reliably connected to the jaw sector plate 2 and the jaw plate 7 through the circular inner holes of the connecting block I21 and the connecting block II71, the smaller diameter of the torsion bar 3 makes the diameter of the circular inner holes of the connecting block I21 and the connecting block II71 smaller, thereby ensuring the strength of the jaw sector plate 2 and the jaw plate 7.

[0045] Example 8

[0046] from Figure 3 、 Figure 4 It can be seen that, in the inclined wedge type reel of the present invention, one of the inner holes of the connecting block I 21 and the connecting block II 71 at the left and right ends is a blind hole.

[0047] When the torsion bar 3 passes through the circular through-hole ends of the connecting block I 21 and the connecting block II 71 and is inserted into the blind hole, the installation and axial positioning of the torsion bar 3 and the jaw sector plate 2 and the jaw plate 7 are ensured.

[0048] Example 9

[0049] from Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 It can be seen that the inclined wedge-type reel of the present invention: the clamping part includes a jaw strip 4, a plurality of clamping units evenly distributed along the length direction of the jaw plate 7, each clamping unit includes a spring seat 5 and a spring 6; the jaw plate 7 is processed with a long groove along the length direction, and a plurality of mounting holes are evenly distributed along the length direction at the bottom of the long groove, the spring seat 5 is arranged in the mounting hole, the spring 6 is installed in the spring seat 5, and the jaw strip 4 is arranged in the long groove and contacts with the spring seat 5.

[0050] When the jaw sector plate 2 and the jaw plate 7 expand outward and the jaws between the jaw sector plate 2 and the jaw plate 7 are closed, the spring 6 presses the jaw strip 4 against the head of the strip to realize the subsequent coiling work.

[0051] Example 10

[0052] from Figure 1 、 Figure 2It can be seen that the inclined wedge reel of the present invention: the jaw assembly also includes a wear-resistant plate 82, the connecting block I 21, the connecting block II 71 and the groove 81 on the main shaft 8 are clearance-fitted, and the wear-resistant plate 82 is arranged between the two.

[0053] The wear-resistant plate 82 delays the wear between the jaw sector plate 2 and the jaw plate 7 and the main shaft 8, thereby extending the service life of the sector plate 2, the jaw plate 7 and the main shaft 8.

[0054] Example 11

[0055] from Figure 1 It can be seen that the inclined wedge reel of the present invention also includes a bearing limit assembly, which includes a limit block 16 and two half rings 17. The limit block 12 is sleeved on the main shaft 8 and presses the positioning bearing 15; the two half rings 17 are stuck in the groove of the main shaft 8 and are combined into a whole, and the half rings 17 and the limit block 16 are pressed by the inclined surface.

[0056] The advantages of the inclined wedge reel of the present invention are: 1. A torsion bar is used as the reset mechanism of the mechanical jaw sector plate, which reduces the amount of material reduction processing on the jaw sector plate. In this way, while ensuring the function of the jaw assembly, the strength of the jaw sector plate is enhanced and the service life is extended; 2. The use of a single torsion bar part replaces the existing multiple spring reset units, simplifies the structure of the jaw, makes processing, assembly and maintenance very simple, and reduces production costs; 3. Two half rings with inclined surfaces are used to limit the movement of the limit block, thereby ensuring reliable limiting of the bearing, simplifying the bearing limit mechanism of the shaft, eliminating the conventional operation of vehicle assembly, low manufacturing cost, and easy installation and maintenance.

Claims

1. A wedge-type reel for mechanical jaws, comprising a pull rod (1), a main shaft (8), an axial wedge (9), a radial wedge (10), a crosshead (11), three sector plates (12), a spring assembly (13), a power assembly (14), and a mechanical jaw assembly, characterized in that: The mechanical jaw assembly comprises a jaw sector plate (2), a torsion bar (3), a jaw plate (7), and a pressing portion; the jaw sector plate (2) is provided with a plurality of protruding connecting blocks I (21) along the length direction, and the jaw plate (7) is provided with a plurality of protruding connecting blocks II (71) along the length direction, and the connecting blocks I (21) and the connecting blocks II (71) are inserted into the opposite gaps; the main shaft (8) is processed with a circular groove (81) along the length direction, and the circular parts of the connecting blocks I (21) and the connecting blocks II (71) are located in the groove (81); the torsion bar (3) passes through the inner holes of the connecting blocks I (21) and the connecting blocks II (71) to connect the jaw sector plate (2) and the jaw plate (7); the torsion bar (3) is made of spring steel.

2. The inclined wedge reel according to claim 1, characterized in that: The number of connecting blocks I (21) on the jaw sector plate (2) and the connecting blocks II (71) on the jaw plate (7) are equal and the concave and convex parts are matched. The left and right ends of the torsion bar (3) are connected to the connecting block I (21) and the connecting block II (71) respectively.

3. The inclined wedge reel according to claim 2, characterized in that: The left and right ends of the torsion bar (3) are non-circular; the inner holes of the connecting block I (21) and the connecting block II (71) at the left and right ends are non-circular; the non-circular shape of the outer surface of the torsion bar (3) and the non-circular shape of the inner holes of the connecting block I (21) and the connecting block II (71) are the same in size and shape.

4. The inclined wedge reel according to claim 3, characterized in that: The two ends of the torsion bar (3) are preferably regular polygons, and the inner holes of the connecting block I (21) and the connecting block II (71) at the left and right ends are preferably regular polygons.

5. The inclined wedge reel according to claim 3, characterized in that: The middle of the torsion bar (3) is circular; the inner holes of the connecting block I (21) and the connecting block II (71) located in the middle are both circular; the circular inner holes of the connecting block I (21) and the connecting block II (71) are slightly larger than the circumscribed circles of the regular polygons at both ends of the torsion bar (3).

6. The inclined wedge reel according to claim 5, characterized in that: The outer diameter of the torsion bar (3) is smaller than the diameter of the circular inner holes of the connecting block I (21) and the connecting block II (71).

7. The inclined wedge reel according to claim 3, characterized in that: One of the inner holes of the connecting block I (21) and the connecting block II (71) at the left and right ends is a blind hole.

8. The inclined wedge reel according to claim 1, characterized in that: The clamping portion comprises a jaw strip (4), a plurality of clamping units uniformly distributed along the length direction of the jaw plate (7), and each clamping unit comprises a spring seat (5) and a spring (6); the jaw plate (7) is processed with a long groove along the length direction, and a plurality of mounting holes are uniformly distributed at the bottom of the long groove along the length direction, the spring seat (5) is arranged in the mounting hole, the spring (6) is installed in the spring seat (5), and the jaw strip (4) is arranged in the long groove and contacts the spring seat (5).

9. The inclined wedge reel according to claim 1, characterized in that: It also includes a bearing limiting assembly, which includes a limiting block (16) and two half rings (17). The limiting block (16) is sleeved on the main shaft (8) and presses the positioning bearing (15). The two half rings (17) are clamped in the groove of the main shaft (8) and combined into a whole. The half rings (17) and the limiting block (16) are pressed by an inclined surface.

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