A double roll calender structure of a fire-retardant coated fabric

Abstract

The utility model discloses a kind of double-roller calendering structures of fire-retardant type gummed fabric, including two support piles, first calendering roller and second calendering roller are equipped between two support piles, and the both ends of first calendering roller and second calendering roller are equipped with roll shaft.The utility model is positioned by inserting the mounting block on hydraulic cylinder in the slot on connecting seat and cooperating with stud, so that hydraulic cylinder cooperates with connecting seat to drive T-shaped mounting seat along T-shaped limit groove to lift stably along rectangular opening, and second calendering roller is lifted vertically by two sides T-shaped mounting seat, improve the stability of calendering interval adjustment, by inserting the both ends roll shaft of first calendering roller and second calendering roller respectively in the rectangular slot on two fixed seats and two T-shaped mounting seats, so that the cylindrical protrusion in rectangular slot penetrates the circular through-hole on roll shaft and cooperates with threaded protrusion and nut to be positioned, first calendering roller and second calendering roller are positioned and disassembled and overhauled conveniently and quickly by clamping.

Description

Technical Field

[0001] This utility model relates to the field of double-roll calendering technology for coated fabrics, and in particular to a double-roll calendering structure for flame-retardant coated fabrics. Background Technology

[0002] Flame-retardant coated fabrics are fire-resistant materials processed with special techniques. They typically use fiberglass cloth and chemical fiber cloth as the base material, and the surface is coated with flame-retardant adhesive. The fire-retardant layer is often formed through mechanical coating or padding processes. Combining the dual characteristics of the fabric base material and the flame-retardant coating, they are widely used in safety protection fields that require fire protection and heat insulation.

[0003] Existing twin-roll calenders for flame-retardant coated fabrics have poor stability when adjusting the spacing of the twin rolls during actual use, and the twin rolls are inconvenient to disassemble and repair. This paper proposes a twin-roll calender structure for flame-retardant coated fabrics to solve the above problems. Utility Model Content

[0004] To address the shortcomings and defects in the existing technology, this utility model proposes a twin-roll calendering structure for flame-retardant coated fabrics. This structure solves the technical problems in the existing twin-roll calenders for flame-retardant coated fabrics, where the stability of the calendering twin rolls during spacing adjustment is poor, and the calendering twin rolls are inconvenient to disassemble and repair.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A twin-roll calendering structure for flame-retardant coated fabric includes two support piles, with a first calendering roller and a second calendering roller disposed between the two support piles. Both ends of the first and second calendering rollers are equipped with roller shafts. Fixed seats are fixedly connected to the opposite sidewalls of the two support piles near their upper ends. The first calendering roller is snapped and positioned between the two fixed seats. Two T-shaped mounting seats are slidably connected to the opposite sidewalls of the two support piles below the fixed seats. The second calendering roller is snapped and positioned between the two T-shaped mounting seats. Adjustment mechanisms are provided on the opposite sidewalls of the two support piles, and these adjustment mechanisms are associated with the two T-shaped mounting seats.

[0006] Preferably, rectangular slots are provided on the opposite sidewalls of the two fixed seats and the two T-shaped mounting seats. The two end rollers of the first calendering roll and the two end rollers of the second calendering roll are respectively inserted into the two rectangular slots on the same horizontal plane. The bottom of the rectangular slots is provided with cylindrical protrusions. One end of the rollers located in the rectangular slots is provided with a circular through hole that is connected vertically. The cylindrical protrusions are respectively provided through the circular through holes. The upper end of the cylindrical protrusions is provided with threaded protrusions. Nuts are threaded onto the threaded protrusions.

[0007] Preferably, the cylindrical protrusion and the threaded protrusion are integrally cast with the fixed base or T-shaped mounting base.

[0008] Preferably, each of the two support piles has a T-shaped limiting groove on its sidewall facing the second calender roll, and the two T-shaped mounting seats are respectively inserted into the two T-shaped limiting grooves and slide against each other.

[0009] Preferably, the adjustment mechanism includes hydraulic cylinders fixedly installed on the opposite sidewalls of the two support piles and rectangular openings communicating with the inner walls of the centers of the two T-shaped limiting grooves. Connecting seats are fixedly connected to the sidewalls of the two T-shaped mounting seats opposite the rectangular openings. The piston rods of the two hydraulic cylinders are vertically downwards, and positioning blocks are fixedly connected to the lower ends of the piston rods of the two hydraulic cylinders. Slots are provided at the upper ends of the two connecting seats away from the T-shaped mounting seats. The two positioning blocks are respectively inserted into the two slots. A single double-ended bolt is horizontally inserted between the two T-shaped mounting seats and the positioning blocks. Nuts are threaded onto both ends of the two double-ended bolts, and several nuts are pressed against the sidewalls of the connecting seats.

[0010] Preferably, each of the two connecting seats has a mounting block on its sidewall facing the T-shaped mounting seat, and several locking bolts are provided between the two mounting blocks and the T-shaped mounting seat. The mounting blocks and the T-shaped mounting seat are integrally cast.

[0011] Compared with the prior art, the advantages of this utility model are as follows: 1. By inserting the mounting block on the hydraulic cylinder into the slot on the connecting seat and positioning it with double-headed bolts, the hydraulic cylinder, together with the connecting seat, drives the T-shaped mounting seat to rise and fall smoothly along the T-shaped limit groove along the rectangular opening. The T-shaped mounting seats on both sides drive the second calendering roller to rise and fall vertically, thereby improving the stability of the calendering gap adjustment.

[0012] 2. By inserting the two end roller shafts of the first and second calendering rollers into the rectangular slots on the two fixed seats and the two T-shaped mounting seats respectively, the cylindrical protrusions in the rectangular slots pass through the circular through holes on the roller shafts and are positioned in conjunction with the threaded protrusions and nuts, which facilitates quick and easy clamping, positioning, disassembly, and maintenance of the first and second calendering rollers. Attached Figure Description

[0013] Figure 1 This is a perspective view of a two-roll calendering structure for a flame-retardant coated fabric proposed in this utility model. Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a schematic diagram of the adjustment mechanism of the double-roller calendering structure of the flame-retardant coated fabric proposed in this utility model.

[0014] In the diagram: 1 Support pile, 2 First calendering roll, 3 Second calendering roll, 4 Roller shaft, 5 Fixed seat, 6 T-type mounting seat, 7 Rectangular slot, 8 Columnar protrusion, 9 Circular through hole, 10 Threaded protrusion, 11 Nut, 12 T-type limiting groove, 13 Hydraulic cylinder, 14 Rectangular opening, 15 Connecting seat, 16 Positioning block, 17 Slot, 18 Double-ended bolt, 19 Mounting block, 20 Locking bolt. Detailed Implementation

[0015] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figure 1-3A two-roll calendering structure for flame-retardant coated fabric includes two support piles 1, with a first calendering roll 2 and a second calendering roll 3 positioned between the two support piles 1. Roller shafts 4 are provided at both ends of the first calendering roll 2 and the second calendering roll 3. Fixing seats 5 are fixedly connected to the opposite sidewalls of the two support piles 1 near their upper ends. The first calendering roll 2 is snapped and positioned between the two fixing seats 5. Two T-shaped mounting seats 6 are slidably connected to the opposite sidewalls of the two support piles 1 below the fixing seats 5. T-shaped mounting seats 6 are provided on the sidewalls of the two support piles 1 facing the second calendering roll 3. The limiting groove 12 has two T-shaped mounting seats 6 inserted into it and sliding against each other. When the T-shaped mounting seats 6 move along the T-shaped limiting groove 12, the second calendering roll 3 can move vertically smoothly, improving the stability of the calendering gap adjustment. The second calendering roll 3 is respectively engaged and positioned between the two T-shaped mounting seats 6. Rectangular slots 7 are provided on the opposite side walls of the two fixed seats 5 and the two T-shaped mounting seats 6. The two end roller shafts 4 of the first calendering roll 2 and the two end roller shafts 4 of the second calendering roll 3 are respectively inserted into the same horizontal plane. Within the two rectangular slots 7, each of the bottom of several rectangular slots 7 is provided with a cylindrical protrusion 8. Each of the several roller shafts 4 located within the rectangular slots 7 has a circular through hole 9 that is vertically connected. The cylindrical protrusions 8 are respectively positioned through the circular through holes 9. Each of the cylindrical protrusions 8 has a threaded protrusion 10 at its upper end, and each threaded protrusion 10 is threaded with a nut 11. The two end roller shafts 4 of the first calendering roller 2 and the second calendering roller 3 are respectively inserted into the rectangular slots 7 on the two fixed seats 5 and the two T-shaped mounting seats 6, so that the rectangular slots 7... The cylindrical protrusion 8 inside is set through the circular through hole 9 on the roller shaft 4. The nut 11 is threaded onto the threaded protrusion 10 for positioning, which effectively clamps and positions the first calendering roller 2 between the two fixed seats 5 and the second calendering roller 3 between the two T-shaped mounting seats 6. When disassembling, simply turn the nut 11 and separate the roller shaft 4 from the cylindrical protrusion 8. This makes it convenient and quick to clamp and position the first calendering roller 2 and the second calendering roller 3 and to replace and repair them. The cylindrical protrusion 8 and the threaded protrusion 10 are integrally cast with the fixed seat 5 or the T-shaped mounting seat 6.

[0018] An adjustment mechanism is provided on the opposite sidewalls of the two support piles 1. The adjustment mechanism is associated with two T-shaped mounting seats 6. The adjustment mechanism includes a hydraulic cylinder 13 fixedly installed on the opposite sidewalls of the two support piles 1 and a rectangular opening 14 communicating with the inner wall of the center position of the two T-shaped limiting grooves 12. A connecting seat 15 is fixedly connected to the sidewall of the two T-shaped mounting seats 6 facing the rectangular opening 14. The piston rods of the two hydraulic cylinders 13 are both vertically downward. The lower end of the piston rod of the two hydraulic cylinders 13 is fixedly connected to a positioning block 16. The upper end of the two connecting seats 15 away from the T-shaped mounting seats 6 is provided with a slot 17. The two positioning blocks 16 are respectively inserted into the two slots 17. The same double-headed bolt 18 is horizontally inserted between the two T-shaped mounting seats 6 and the positioning blocks 16. Both ends of the two double-ended bolts 18 are threaded with nuts, and several nuts are pressed against the side wall of the connecting seat 15. The mounting blocks 19 on the piston rods of the hydraulic cylinders 13 on the two support piles 1 are respectively inserted into the slots 17 on the two connecting seats 15. The two double-ended bolts 18 are respectively set through the connecting seats 15 and the T-shaped mounting seats 6 on both sides. The nuts are fitted onto the two double-ended bolts 18 to position the connecting seats 15 and the T-shaped mounting seats 6. The two connecting seats 15 are provided with mounting blocks 19 on the side wall facing the T-shaped mounting seats 6. Several locking bolts 20 are provided between the two mounting blocks 19 and the T-shaped mounting seats 6. The mounting blocks 19 and the T-shaped mounting seats 6 are integrally cast. The mounting blocks 19, together with the several locking bolts 20, fix the connecting seats 15 on the T-shaped mounting seats 6.

[0019] In use, the two end shafts 4 of the first calendering roll 2 and the second calendering roll 3 are respectively inserted into the rectangular slots 7 on the two fixed seats 5 and the two T-shaped mounting seats 6, so that the cylindrical protrusions 8 in the rectangular slots 7 pass through the circular through holes 9 on the roller shafts 4. The nuts 11 are threaded onto the threaded protrusions 10 for positioning, effectively locking the first calendering roll 2 between the two fixed seats 5 and the second calendering roll 3 between the two T-shaped mounting seats 6. For disassembly, simply unscrew the nuts 11 to separate the roller shafts 4 from the cylindrical protrusions 8, which facilitates quick and easy disassembly of the first calendering roll 2 and the second calendering roll 3. 3. For positioning and maintenance, insert the mounting blocks 19 on the piston rods of the hydraulic cylinders 13 on the two support piles 1 into the slots 17 on the two connecting seats 15 respectively. Set two double-headed bolts 18 through the connecting seats 15 and T-shaped mounting seats 6 on both sides respectively. Put the nuts on the two double-headed bolts 18 to position the connecting seats 15 and T-shaped mounting seats 6. Start the hydraulic cylinders 13 on both sides to cooperate with the connecting seats 15 to drive the T-shaped mounting seats 6 to rise and fall smoothly along the T-shaped limiting groove 12 along the rectangular opening 14. The T-shaped mounting seats 6 on both sides drive the second calendering roller 3 to rise and fall vertically, improving the stability of the calendering gap adjustment.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A two-roll calendering structure for flame-retardant coated fabric, comprising two support piles (1), a first calendering roll (2) and a second calendering roll (3) disposed between the two support piles (1), wherein both ends of the first calendering roll (2) and the second calendering roll (3) are provided with roller shafts (4), characterized in that, Two support piles (1) are fixedly connected to fixed seats (5) on opposite side walls near the upper end. The first calendering roller (2) is snapped and positioned between the two fixed seats (5). Two T-shaped mounting seats (6) are slidably connected to opposite side walls of the two support piles (1) below the fixed seats (5). The second calendering roller (3) is snapped and positioned between the two T-shaped mounting seats (6). Adjustment mechanisms are provided on opposite side walls of the two support piles (1). The adjustment mechanisms are associated with the two T-shaped mounting seats (6).

2. The two-roll calendering structure for a flame-retardant coated fabric according to claim 1, characterized in that, Rectangular slots (7) are provided on the opposite side walls of the two fixed seats (5) and the two T-shaped mounting seats (6). The two end roller shafts (4) of the first calendering roll (2) and the two end roller shafts (4) of the second calendering roll (3) are respectively inserted into the two rectangular slots (7) on the same horizontal plane. The bottom of the rectangular slots (7) is provided with columnar protrusions (8). One end of the roller shafts (4) located in the rectangular slots (7) is provided with a circular through hole (9) that is connected vertically. The columnar protrusions (8) are respectively arranged through the circular through holes (9). The upper end of the columnar protrusions (8) is provided with threaded protrusions (10). Nuts (11) are threadedly sleeved on the threaded protrusions (10).

3. The two-roll calendering structure for a flame-retardant coated fabric according to claim 2, characterized in that, The cylindrical protrusion (8) and the threaded protrusion (10) are integrally cast with the fixed seat (5) or the T-shaped mounting seat (6).

4. The two-roll calendering structure for a flame-retardant coated fabric according to claim 1, characterized in that, Both of the two support piles (1) are provided with T-shaped limiting grooves (12) on the side walls facing the second calender roll (3), and the two T-shaped mounting seats (6) are respectively inserted into the two T-shaped limiting grooves (12) and slide against each other.

5. The two-roll calendering structure of a flame-retardant coated fabric according to claim 4, characterized in that, The adjustment mechanism includes hydraulic cylinders (13) fixedly installed on the opposite sidewalls of the two support piles (1) and rectangular openings (14) connected to the inner walls of the center positions of the two T-shaped limiting grooves (12). Connecting seats (15) are fixedly connected to the sidewalls of the two T-shaped mounting seats (6) facing the rectangular openings (14). The piston rods of the two hydraulic cylinders (13) are vertically downward. The lower ends of the piston rods of the two hydraulic cylinders (13) are fixedly connected to positioning blocks (16). The upper ends of the two connecting seats (15) away from the T-shaped mounting seats (6) are provided with slots (17). The two positioning blocks (16) are respectively inserted into the two slots (17). The same double-headed bolt (18) is horizontally inserted between the two T-shaped mounting seats (6) and the positioning blocks (16). The two ends of the two double-headed bolts (18) are threaded with nuts. Several nuts are pressed against the sidewalls of the connecting seats (15).

6. The two-roll calendering structure of a flame-retardant coated fabric according to claim 5, characterized in that, Both of the connecting seats (15) are provided with mounting blocks (19) on the side walls facing the T-shaped mounting seat (6). Several locking bolts (20) are provided between the two mounting blocks (19) and the T-shaped mounting seat (6). The mounting blocks (19) and the T-shaped mounting seat (6) are integrally cast.

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