Elastic diameter-changing reel for uncoiler

Abstract

The utility model belongs to the field of uncoiler, concretely relates to a kind of elastic diameter change reel for uncoiler, including inner tube, the inside of the inner tube is slidably sleeved with multiple support rods that are evenly distributed, one end of the support rod is fixedly connected with limit block, the outside of the support rod is provided with first spring, the other end of the support rod is fixedly connected with support block, the inside of the inner tube is fixedly sleeved with fixed seat, the inside of the fixed seat is rotatably sleeved with rotating seat.The utility model is through the thread cooperation of screw rod and screw sleeve, the thread movement of screw sleeve can be realized when rotating screw rod, screw sleeve can drive top block to move and press block extrusion, push block will move in vertical direction, and then support block can be driven to move in vertical direction, support block position adjustment can be carried out, the purpose of adjusting reel diameter is achieved, four support blocks synchronous movement adjustment precision is higher, and operation is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of uncoiler technology, specifically to an elastic diameter variable drum for an uncoiler. Background Technology

[0002] Flexible diameter variable diameter uncoilers are mainly used in metal sheet processing production lines to unwind coiled raw materials such as steel, aluminum, and copper sheets, providing flat sheet material for subsequent processes such as stamping, rolling, shearing, printing, and lamination. They are widely used in metal processing fields such as automobile manufacturing, home appliance production, and aerospace, as well as in cold and hot rolling production lines in the metallurgical industry and in the unwinding of metal foil and paper in the packaging industry. They are a key component ensuring efficient and stable unwinding of coiled materials to connect with subsequent processing flows.

[0003] Utility model patent CN205926665U discloses an elastic diameter variable-diameter drum for an uncoiler, comprising an inner drum and an outer drum. The outer drum has axially expanding and contracting openings arranged at equal intervals on its peripheral wall. The ends of these openings are fitted with spacers along the inner wall, and adjacent spacers are connected by tension springs. A sizing screw is provided on the outer drum between adjacent axially expanding and contracting openings, with its inner end screwed through a corresponding screw hole on the outer drum and perpendicularly abutting against the outer wall of the inner drum. This elastic diameter variable-diameter drum for an uncoiler not only allows for diameter changes but also features a complex structure, low manufacturing cost, easy assembly and disassembly, and long-term reusability. It is suitable for both hot rolling mill coilers and cold rolling mill uncoilers.

[0004] In the aforementioned prior art, the outer cylinder diameter is adjusted by sizing screws during drum operation. This adjustment requires operating multiple sizing screws individually, which is cumbersome and lacks precision. Unevenness of the outer cylinder can also negatively impact the winding effect. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide an elastic diameter variable drum for an uncoiler, which solves the problem of inconvenient use of adjusting the outer drum diameter.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an elastic diameter variable drum for an uncoiler, comprising an inner drum, wherein a plurality of evenly distributed support rods are slidably sleeved inside the inner drum, a limit block is fixedly connected to one end of each support rod, a first spring is provided on the outside of each support rod, a support block is fixedly connected to the other end of each support rod, a fixed seat is fixedly sleeved inside the inner drum, a rotating seat is rotatably sleeved inside the fixed seat, an adjustment mechanism is provided on the support block, and a limit mechanism is provided on the adjustment mechanism.

[0007] Preferably, one end of the first spring is fixedly connected to the support block, and the other end of the first spring is fixedly connected to the inner cylinder. By combining the forces of the first spring, the force of the first spring can be applied to the support block.

[0008] Preferably, the adjusting mechanism includes a support base, which is fixedly sleeved inside the inner cylinder. A screw is rotatably sleeved inside the support base via a bearing. A knob is fixedly connected to the left end of the screw, and the knob has a hexagonal groove inside. A threaded sleeve is threadedly connected to the outer side of the screw, and a top block is fixedly connected to the outer side of the threaded sleeve. The top block is slidably connected to the screw. Multiple push blocks are contacted at the right end of the top block, and these push blocks are slidably connected to the inner cylinder and fixedly connected to the support block. Guide rods are fixedly connected to both the upper and lower ends of the threaded sleeve, and these guide rods are slidably connected to the inner cylinder. The screw is rotatably connected to a fixed base and fixedly connected to a rotating base. This adjusting mechanism facilitates the adjustment of the drum's operating diameter.

[0009] Preferably, the inner cylinder has a guide groove inside, and a guide rod is slidably connected inside the guide groove. By designing the guide groove, the guide rod can slide along the guide groove.

[0010] Preferably, the limiting mechanism includes a slot, the interior of the rotating seat has a slot, a rod is slidably connected inside the slot, the rod is slidably connected to a fixed seat, a fixed rod is slidably sleeved inside the rod, the fixed rod is fixedly connected to the fixed seat, a second spring is provided on the outside of the fixed rod, a push rod is fixedly connected to one end of the rod, the push rod is slidably connected to the fixed seat, and a magnetic block is fixedly connected to the other end of the rod, the magnetic block is slidably connected to the fixed seat, and a magnet is provided inside the magnetic block. By designing the limiting mechanism, the rotating seat can be limited.

[0011] Preferably, there are multiple slots, which are arranged in a ring and evenly distributed inside the rotating seat. By designing multiple slots, the insertion rod can be inserted into the slots at different positions.

[0012] Preferably, one end of the second spring is fixedly connected to the insertion rod, and the other end of the second spring is fixedly connected to the fixing seat. By designing the second spring, the force of the second spring can be applied to the insertion rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model designs a threaded fit between the screw and the sleeve, so that the screw sleeve can move when the screw is rotated. The sleeve can drive the top block to move and squeeze the push block. The push block will move vertically, which in turn can drive the support block to move vertically. The position of the support block can be adjusted to adjust the diameter of the drum. The synchronous movement of the four support blocks has higher adjustment accuracy and is more convenient to operate.

[0015] 2. This utility model, through the design of the insertion rod and slot, can limit the rotation seat, which in turn can limit the screw, and then limit and lock the positions of the screw sleeve, top block and push block. This can effectively prevent the screw from rotating due to external force after the diameter adjustment is completed, which would cause the support block to move and affect the diameter of the drum, thus improving the adjustment stability. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A partial three-dimensional sectional view of the structure;

[0018] Figure 3 This utility model Figure 2 Enlarged view of point A;

[0019] Figure 4 This utility model Figure 2 The front sectional view of the fixed base.

[0020] In the diagram: 1. Inner cylinder; 2. Support rod; 3. Limiting block; 4. First spring; 5. Support block; 6. Fixed seat; 7. Rotating seat; 8. Adjustment mechanism; 9. Limiting mechanism; 81. Supporting seat; 82. Screw; 83. Knob; 84. Screw sleeve; 85. Top block; 86. Push block; 87. Guide rod; 88. Guide groove; 91. Slot; 92. Insert rod; 93. Fixed rod; 94. Second spring; 95. Push rod; 96. Magnetic block; 97. Magnet. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 , Figure 2A variable diameter spool for an uncoiler includes an inner cylinder 1. Multiple evenly distributed support rods 2 are slidably sleeved inside the inner cylinder 1. One end of each support rod 2 is fixedly connected to a limit block 3. A first spring 4 is provided on the outer side of each support rod 2. One end of the first spring 4 is fixedly connected to a support block 5, and the other end of the first spring 4 is fixedly connected to the inner cylinder 1. By balancing the first spring 4, its force can act on the support block 5. The other end of the support rod 2 is fixedly connected to the support block 5. A fixed seat 6 is fixedly sleeved inside the inner cylinder 1. A rotating seat 7 is rotatably sleeved inside the fixed seat 6. An adjustment mechanism 8 is provided on the support block 5, and a limit mechanism 9 is provided on the adjustment mechanism 8.

[0023] Please see Figure 1 , Figure 2 , Figure 3 The adjusting mechanism 8 includes a support base 81. The support base 81 is fixedly sleeved inside the inner cylinder 1. A screw 82 is rotatably sleeved inside the support base 81 via a bearing. A knob 83 is fixedly connected to the left end of the screw 82. The knob 83 has a hexagonal groove inside. A threaded sleeve 84 is threadedly connected to the outside of the screw 82. A top block 85 is fixedly connected to the outside of the threaded sleeve 84. The top block 85 is slidably connected to the screw 82. A plurality of push blocks 86 are in contact with the right end of the top block 85. The push blocks 86 are connected to the inner cylinder 1. The inner cylinder 1 is slidably connected, the push block 86 is fixedly connected to the support block 5, and the upper and lower ends of the screw sleeve 84 are fixedly connected to the guide rod 87. The guide rod 87 is slidably connected to the inner cylinder 1. The inner cylinder 1 has a guide groove 88 inside, and the guide rod 87 is slidably connected inside the guide groove 88. By designing the guide groove 88, the guide rod 87 can slide along the guide groove 88. The screw 82 is rotatably connected to the fixed seat 6 and fixedly connected to the rotating seat 7. By designing the adjustment mechanism 8, the diameter of the drum can be easily adjusted.

[0024] Please see Figure 1 , Figure 2 , Figure 4The limiting mechanism 9 includes slots 91. Slots 91 are provided inside the rotating seat 7. A rod 92 is slidably connected inside the slot 91. There are multiple slots 91, arranged in a ring and evenly distributed inside the rotating seat 7. By designing multiple slots 91, the rod 92 can be inserted into slots 91 at different positions. The rod 92 is slidably connected to the fixed seat 6. A fixed rod 93 is slidably sleeved inside the rod 92. The fixed rod 93 is fixedly connected to the fixed seat 6. A second spring 9 is provided on the outer side of the fixed rod 93. 4. One end of the second spring 94 is fixedly connected to the insertion rod 92, and the other end of the second spring 94 is fixedly connected to the fixed seat 6. By designing the second spring 94, the force of the second spring 94 can be applied to the insertion rod 92. One end of the insertion rod 92 is fixedly connected to the push rod 95, and the push rod 95 is slidably connected to the fixed seat 6. The other end of the insertion rod 92 is fixedly connected to the magnetic block 96, and the magnetic block 96 is slidably connected to the fixed seat 6. The magnetic block 96 is provided with a magnet 97 inside. By designing the limiting mechanism 9, the rotating seat 7 can be limited.

[0025] The specific implementation process of this utility model is as follows: When it is necessary to adjust the diameter of the drum, first insert the hex wrench into the knob 83 and rotate the knob 83. The knob 83 drives the screw 82 to rotate, causing the screw sleeve 84 to make threaded movement. The screw sleeve 84 drives the guide rod 87 to slide along the guide groove 88. At the same time, the screw sleeve 84 will drive the top block 85 to move. The top block 85 will contact the push block 86 and squeeze the push block 86. The push block 86 will drive the support block 5 to move. The support block 5 will drive the support rod 2 and the limit block 3 to move. The support block 5 will stretch the first spring 4, thus completing the adjustment of the position of the support block 5 and achieving the purpose of adjusting the drum diameter. The synchronous movement of the four support blocks 5 results in higher adjustment accuracy and more convenient operation.

[0026] After adjustment, push the push rod 95 to move. The push rod 95 drives the insertion rod 92 to move, and the insertion rod 92 drives the magnetic block 96 to move, causing the magnetic block 96 to separate from the magnet 97. At this time, under the elastic action of the compressed second spring 94, a counter-pushing force is given to the insertion rod 92, which can push the insertion rod 92 into the interior of the slot 91. At this time, the rotating seat 7 can be limited, and the positions of the screw sleeve 84, the top block 85 and the push block 86 can be limited and locked. This can effectively prevent the screw 82 from rotating due to external force after the diameter adjustment, which would cause the position of the support block 5 to move and affect the diameter of the drum, thus improving the stability of adjustment.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible diameter variable drum for an uncoiler, comprising an inner drum (1), characterized in that: The inner cylinder (1) has multiple evenly distributed support rods (2) slidably sleeved inside. One end of the support rod (2) is fixedly connected to a limit block (3). A first spring (4) is provided on the outside of the support rod (2). The other end of the support rod (2) is fixedly connected to a support block (5). A fixed seat (6) is fixedly sleeved inside the inner cylinder (1). A rotating seat (7) is rotatably sleeved inside the fixed seat (6). An adjustment mechanism (8) is provided on the support block (5). A limit mechanism (9) is provided on the adjustment mechanism (8).

2. The flexible diameter variable drum for an uncoiler according to claim 1, characterized in that: One end of the first spring (4) is fixedly connected to the support block (5), and the other end of the first spring (4) is fixedly connected to the inner cylinder (1).

3. The flexible diameter variable drum for an uncoiler according to claim 1, characterized in that: The adjusting mechanism (8) includes a support base (81). The support base (81) is fixedly sleeved inside the inner cylinder (1). A screw (82) is rotatably sleeved inside the support base (81) via a bearing. A knob (83) is fixedly connected to the left end of the screw (82). A hexagonal groove is provided inside the knob (83). A threaded sleeve (84) is threaded to the outside of the screw (82). A top block (85) is fixedly connected to the outside of the threaded sleeve (84). (85) is slidably connected to the screw (82). The right end of the top block (85) is in contact with multiple push blocks (86). The push blocks (86) are slidably connected to the inner cylinder (1). The push blocks (86) are fixedly connected to the support block (5). The upper and lower ends of the screw sleeve (84) are fixedly connected to guide rods (87). The guide rods (87) are slidably connected to the inner cylinder (1). The screw (82) is rotatably connected to the fixed seat (6). The screw (82) is fixedly connected to the rotating seat (7).

4. The flexible diameter variable drum for an uncoiler according to claim 1, characterized in that: The inner cylinder (1) has a guide groove (88) inside, and a guide rod (87) is slidably connected inside the guide groove (88).

5. The flexible diameter variable drum for an uncoiler according to claim 1, characterized in that: The limiting mechanism (9) includes a slot (91). The slot (91) is provided inside the rotating seat (7). A rod (92) is slidably connected inside the slot (91). The rod (92) is slidably connected to the fixed seat (6). A fixed rod (93) is slidably sleeved inside the rod (92). The fixed rod (93) is fixedly connected to the fixed seat (6). A second spring (94) is provided on the outside of the fixed rod (93). A push rod (95) is fixedly connected to one end of the rod (92). The push rod (95) is slidably connected to the fixed seat (6). A magnetic block (96) is fixedly connected to the other end of the rod (92). The magnetic block (96) is slidably connected to the fixed seat (6). A magnet (97) is provided inside the magnetic block (96).

6. The flexible diameter variable drum for an uncoiler according to claim 5, characterized in that: The number of slots (91) is multiple, and the multiple slots (91) are arranged in a ring and evenly distributed inside the rotating seat (7).

7. The flexible diameter variable drum for an uncoiler according to claim 5, characterized in that: One end of the second spring (94) is fixedly connected to the insert rod (92), and the other end of the second spring (94) is fixedly connected to the fixed seat (6).

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