CN216272509U

CN216272509U - Sheet unwinding frame

Info

Publication number: CN216272509U
Application number: CN202122457022.9U
Authority: CN
Inventors: 赵丽娟; 张�杰
Original assignee: Dali Jiuheng Printing Co ltd
Current assignee: Dali Jiuheng Printing Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-04-12
Anticipated expiration: 2031-10-12

Abstract

The utility model belongs to the field of winding and unwinding equipment, and particularly relates to a sheet unwinding frame which comprises a support frame, wherein rotary rollers are rotatably arranged on two sides of the support frame, a positioning block is fixed on an ear of a bearing seat on one side, a threaded hole is formed in the positioning block, a semicircular internal contracting brake block is arranged on one side of each rotary roller, a semicircular groove is formed in the inner wall of each internal contracting brake block, a semicircular damping sheet is arranged in each semicircular groove in a clinging manner, and the damping sheet is arranged in each semicircular groove in a clinging manner; fixed parts extend from two sides of the contracting brake block, through holes are formed in the fixed parts, first screws are arranged in the through holes, and the fixed parts are connected in threaded holes of the positioning blocks through the first screws. The unwinding mechanism has the advantages of simple structure, continuous and stable unwinding, convenience in assembly and disassembly, integration of winding and transportation, and capability of avoiding the problem that the unwinding speed and the winding tension are difficult to control due to the action of inertia in the unwinding process.

Description

Sheet unwinding frame

Technical Field

The utility model belongs to the field of winding and unwinding equipment, and particularly relates to a sheet unwinding frame.

Background

The unwinding equipment is widely applied to various processing fields such as metal coil strips, printing paper winding and unwinding in printing industry, cloth winding and unwinding in textile industry and the like. The main function of the unwinding mechanism is to uniformly pull the coiled material out of the roller with a certain tension. In the printing field, the unreeling and reeling mechanism unreels printing paper and sheets, the unreeling speed is controlled in the unreeling process, and the unreeling quality can be guaranteed only by adjusting the tension of the roll paper in time.

Most of the existing winding and unwinding equipment are large in size and heavy, the position of the existing winding and unwinding equipment is fixed and unchangeable, and in order to guarantee the unwinding speed, a damping device with a complex structure needs to be arranged, and the existing winding and unwinding equipment is controlled through various electric and mechanical equipment to adjust resistance so as to control the unwinding speed. And to the printing trade, the frequent rolling of needs between each printing process, unreel the operation, need frequent transport coiled material at each job site, obviously need design a simple structure, rolling stable collection rolling and integrative equipment of transportation.

For some unwinding mechanisms, printing paper and sheets are basically directly wound on a winding roller, and due to the fact that the coiled material is too heavy and large in size, the unwinding speed is not easy to control due to the fact that the coiled material is extremely prone to being subjected to the action of inertia in the unwinding process, the unwinding speed is low, the tension of the coiled material cannot be maintained at a stable value, continuous and stable rotation unwinding cannot be achieved, and quality problems occur in the subsequent unwinding processing process.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problem, the utility model provides an edge material slitting device.

The technical scheme provided by the utility model is as follows:

a sheet unwinding frame comprises a support frame, wherein mounting bases are respectively fixed at the upper ends of two sides of the support frame, bearing seats are fixed on the mounting bases, bearings are arranged in the bearing seats, rotating rollers are connected to the bearings of the two bearing seats, a positioning block is fixed on an ear of the bearing seat on one side, a threaded hole is formed in the positioning block, a semicircular contracting brake block is arranged on one side of each rotating roller, a semicircular groove is formed in the inner wall of each contracting brake block, a semicircular damping sheet is arranged in each semicircular groove in a clinging mode, and the damping sheet is arranged in each semicircular groove in a clinging mode; fixed parts extend from two sides of the contracting brake block, through holes are formed in the fixed parts, first screws are arranged in the through holes, and the fixed parts are connected in threaded holes of the positioning blocks through the first screws.

Preferably, the bearing seat and the positioning block are fixed on the mounting base through second screws.

Preferably, four wheels are arranged at the bottom end of the support frame.

Preferably, sheet pine book frame, including the locating rack, the locating rack is fixed on the ground, be provided with two race on the locating rack, the support frame can push the locating rack through the wheel on.

Preferably, the sheet unwinding frame comprises a locking mechanism, the locking mechanism comprises a rotating handle and a bolt connector, a first hanging point is arranged on a middle cross rod of the supporting frame, and a second hanging point is arranged on the positioning frame; the both ends of rotatory handle are connected with bolted connection head respectively through the screw thread, bolted connection head's end is provided with the couple, two bolted connection head hang respectively through the couple and collude on first string of point and second string of point.

Preferably, the number of the locking mechanisms is two, and the two locking mechanisms are respectively arranged on two sides of the support frame.

Preferably, a through groove is formed in the rotating handle, the two ends of the rotating handle are connecting ends, threaded holes are formed in the connecting ends, and the bolt connectors are arranged in the threaded holes of the connecting ends.

The utility model has the following advantages and beneficial effects:

1. the utility model discloses a sheet unwinding frame which comprises a support frame, wherein a rotary roller is fixed on the support frame through a bearing seat, and coiled materials are wound on the rotary roller. The locating block is fixed on the lug of the bearing seat on one side, the threaded hole is formed in the locating block, the semicircular band-type brake block is arranged on one side of the rotating roller, the semicircular groove is formed in the inner wall of the band-type brake block, the semicircular damping fin is tightly attached to the semicircular groove, the rotating roller is tightly attached to the damping fin, the damping fin is detachably arranged in the semicircular groove, and the fixing and the stable convenient replacement are realized. Fixed parts extend from two sides of the brake block, through holes are formed in the fixed parts, first screws are arranged in the through holes, and the fixed parts are connected in threaded holes of the positioning blocks through the first screws. The design structure is simple, the operation is convenient, certain resistance can be applied to the rotary roller by adjusting the first screw, the unreeling speed is not influenced by the inertia in the unreeling process, the unreeling is continuous and stable, the unreeling speed and the unreeling tension are stably controlled, and the unreeling quality is guaranteed.

2. The sheet unwinding frame comprises a positioning frame, wherein the positioning frame is fixed on a foundation, two wheel grooves are formed in the positioning frame, and a supporting frame can be pushed into the positioning frame through wheels. The sheet unwinding frame is compact and light in overall structure and can transfer coiled materials. For the printing industry, the utility model meets the characteristic that the rolling and unreeling operations are frequently required among all printing processes and the coiled materials are frequently transferred at all work sites, has simple structure, convenient disassembly and assembly and stable rolling, and integrates the rolling and the transportation into a whole.

Drawings

FIG. 1 is a front view of a sheet unwind stand provided by the present invention;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a partial enlarged view a of FIG. 2;

FIG. 4 is a schematic structural diagram of a band-type brake block according to the present invention;

icon: 1-support frame, 11-middle cross bar, 111-first hanging point, 12-wheel, 13-installation base, 2-rotation handle, 21-through groove, 22-connecting end, 23-bolt connector, 3-positioning frame, 31-wheel groove, 32-second hanging point, 4-bearing seat, 41-bearing, 42-lug, 5-rotation roller, 6-contracting brake block, 61-semicircular groove, 611-anti-rotation lug, 62-fixing part, 621-through hole, 7-damping sheet, 8-positioning block, 81-first screw, 82-second screw and 9-coiled material.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1 to 4, a sheet unwinding frame comprises a support frame 1, wherein mounting bases 13 are respectively fixed at the upper ends of two sides of the support frame 1, bearing seats 4 are fixed on the mounting bases 13, bearings 41 are arranged in the bearing seats 4, rotary rollers 5 are connected to the bearings 41 of the two bearing seats 4, and coiled materials 9 are wound on the rotary rollers 5.

A positioning block 8 is fixed on the lug 42 of the bearing seat 4 on one side, a threaded hole is formed in the positioning block 8, a semicircular band-type brake block 6 is arranged on one side of the rotating roller 5 (namely the outer side of the bearing seat 4 is arranged on the rotating roller 5), a semicircular groove 61 is formed in the inner wall of the band-type brake block 6, an anti-rotating convex block 611 is arranged at the bottom of the semicircular groove 61, a semicircular damping sheet 7 is arranged in the semicircular groove 61 in a clinging mode, and the damping sheet 7 is arranged in a clinging mode on the rotating roller 5. The two ends of the damping fin 7 are tightly attached to the anti-rotation projection 611, so that when the damping fin 7 is used for contracting brake to apply resistance to the rotating roller 5, the damping fin 7 can be prevented from rotating. The damping fin 7 is fixed in a simple and stable manner, and is convenient to disassemble and assemble. Fixing portions 62 extend from two sides of the brake block 6, through holes 621 are formed in the fixing portions 62, first screws 81 are arranged in the through holes 621, and the fixing portions 62 are connected in threaded holes of the positioning blocks 8 through the first screws 81. Therefore, the contact pressure of the contracting brake block 6 and the rotating roller 5 can be adjusted by screwing the first screw 81, and a proper pressure is applied to the rotating roller 5, so that the unwinding speed of the coiled material is not influenced by the self inertia effect of the rotating roller 5 in the rotating process.

As shown in fig. 3, further, the bearing seat 4 and the positioning block 8 are fixed on the mounting base 13 by second screws 82. The bearing block 4 is generally a standard component, and in order to ensure the simple structure of the utility model, the connecting hole on the positioning block 8 is butted with the connecting hole of the bearing block 4, so that the bearing block 4 and the positioning block 8 can be fixed on the mounting base 13 only by one second screw 82, the fixing mode is further simplified, and the disassembly and the assembly are convenient and quick.

In the utility model, the four wheels 12 are arranged at the bottom end of the support frame 1, namely the support frame 1 is a movable trolley which can transport the coiled material 9, so that the coiled material 9 can be conveniently wound, unwound, transported and the like among various working procedures.

Further, the sheet unwinding frame comprises a positioning frame 3, the positioning frame 3 is fixed on a foundation, and the position of the positioning frame 3 is set at a proper position according to processing equipment of a coiled material 9 unwound by the sheet unwinding frame. Such as: if the web 9 is unwound for a printing operation, the sheet unwind stand is positioned in line with the printing apparatus. Two wheel grooves 31 are provided on the positioning frame 3, and the support frame 1 can be pushed onto the positioning frame 3 through the wheels 12. Such design convenience is spacing, fixed to support frame 1, and the mode of fixing simultaneously is not hard connections such as bolt, conveniently transports the coiled material with sheet unreel frame.

Further, the sheet unwinding frame comprises a locking mechanism, the locking mechanism comprises a rotating handle 2 and a bolt connector 23, a first hanging point 111 is arranged on the middle cross rod 11 of the support frame 1, and a second hanging point 32 is arranged on the positioning frame 3; the two ends of the rotating handle 2 are respectively connected with a bolt connector 23 through threads, the tail end of the bolt connector 23 is provided with a hook, and the two bolt connectors 23 are respectively hooked on the first hanging point 111 and the second hanging point 32 through the hooks. The support frame 1 can be further fixed by the design, and the fixing mode is convenient to release and easy to operate.

In the present invention, two locking mechanisms may be provided, which are respectively provided on both sides of the supporting frame 1.

Further, be provided with logical groove 21 that link up on rotatory handle 2, the both ends of rotatory handle 2 are link 22, and the inside of link 22 is provided with the screw hole, and screw hole and logical groove 21 intercommunication, bolted connection head 23 set up in the screw hole of link 22. When the support frame 1 is fixed on the positioning frame 3, the rotary handle 2 can be rotated to screw the bolt connector 23 to realize tightness adjustment, and in order to further realize labor-saving rotation of the rotary handle 2, a force arm can be searched to be inserted into the through groove 21, so that the screwing operation can be performed in a labor-saving manner.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sheet unwinding frame comprises a support frame (1), wherein mounting bases (13) are respectively fixed at the upper ends of two sides of the support frame (1), bearing seats (4) are fixed on the mounting bases (13), bearings (41) are arranged in the bearing seats (4), and rotary rollers (5) are connected to the bearings (41) of the two bearing seats (4), the sheet unwinding frame is characterized in that a positioning block (8) is fixed on an ear (42) of one of the bearing seats (4), a threaded hole is formed in the positioning block (8), a semicircular brake block (6) is arranged on one side of each rotary roller (5), a semicircular groove (61) is formed in the inner wall of each brake block (6), a semicircular damping piece (7) is arranged in each semicircular groove (61) in a close fit manner, and each damping piece (7) is arranged in each rotary roller (5) in a close fit manner; fixed part (62) extend in the both sides of contracting brake block (6), be provided with through-hole (621) on fixed part (62), be provided with first screw (81) in through-hole (621), fixed part (62) are connected in the screw hole of locating piece (8) through first screw (81).

2. The sheet unwind stand of claim 1 wherein: the bearing seat (4) and the positioning block (8) are fixed on the mounting base (13) through second screws (82).

3. The sheet unwind stand of claim 1 wherein: the bottom of support frame (1) is provided with four wheels (12).

4. The sheet unwind stand of claim 3 wherein: including locating rack (3), locating rack (3) are fixed on the ground, be provided with two race (31) on locating rack (3), support frame (1) can push locating rack (3) through wheel (12).

5. The sheet unwind stand of claim 4 wherein: the device comprises a locking mechanism, wherein the locking mechanism comprises a rotary handle (2) and a bolt connector (23), a first hanging point (111) is arranged on a middle cross rod (11) of a support frame (1), and a second hanging point (32) is arranged on a positioning frame (3); the both ends of rotatory handle (2) are connected with bolted connection head (23) respectively through the screw thread, the end of bolted connection head (23) is provided with the couple, two bolted connection head (23) hang respectively through the couple and collude on first string of point (111) and second string of point (32).

6. The sheet unwind stand of claim 5 wherein: the two locking mechanisms are respectively arranged on two sides of the support frame (1).

7. The sheet unwind stand of claim 5 wherein: be provided with logical groove (21) that link up on rotatory handle (2), the both ends of rotatory handle (2) are link (22), the inside of link (22) is provided with the screw hole, bolted connection head (23) set up in the screw hole of link (22).