Loop type guide roller structure

Abstract

The utility model relates to the technical field of guide rollers, in particular to a loop type guide roller structure which comprises a bottom plate, two installation frames are fixedly connected to the upper surface of the bottom plate, a top plate is fixedly connected to the upper surfaces of the installation frames, and a transmission box is fixedly connected to the upper surface of the top plate. A transmission shaft is rotatably connected to the front surface of the transmission box in an embedded mode, a first bevel gear is fixedly connected to the outer surface of the transmission shaft, two lead screws are rotatably connected to the upper surface of the top plate in an embedded mode, a limiting module is slidably connected to the interior of the mounting frame, and the limiting module comprises an upper clamping seat, a lower clamping seat and a universal ball. And the threaded column is matched to manually drive the insertion rod to move, so that the insertion rod overcomes the elastic force of the spring, the insertion rod is further withdrawn from the interior of the limiting hole, the roller sleeve loses an external limiting assembly, on the contrary, the roller sleeve can be mounted, the roller sleeve can be conveniently replaced, and the roller sleeves with different lines can be quickly put into use.

Description

Technical Field

[0001] This utility model relates to the field of guide roller technology, specifically a loop-type guide roller structure. Background Technology

[0002] Loose-fitting guide rollers are mainly used for tension adjustment and guidance. Their core function is to buffer tension fluctuations through the floating or loose-fitting mechanism of the roller. In slitting machines, tension control is a critical link, especially when processing materials such as film and paper. Stable tension can prevent the material from stretching or breaking. Therefore, loose-fitting guide rollers can well meet the tension adjustment needs of slitting machines. However, existing devices have certain drawbacks in use. For example, the announcement number CN220887836U describes a guide roller structure for a drawing frame, which is applied in the field of drawing frames. This utility model uses a moving slide cylinder to disengage the slide cylinder from the fixed groove. Then, the guide roller is removed from the fixed groove for replacement. The two ends of the replaced guide roller are placed into the fixed groove, and then the slide cylinder is released. The slide cylinder returns to its original position under the action of the spring, and the returned slide cylinder covers the fixed groove.

[0003] Although the above-mentioned device can move up and down, different guide rollers with different textures are required for conveying different roll materials. For example, symmetrical first and second threaded sections with opposite directions of rotation can be set on the surface of the guide roller. This design can use friction to spread the material to both ends, thereby avoiding wrinkling. In some cases, the guide roller may have a smooth surface, especially when dealing with materials with high surface quality requirements. A smooth surface can reduce frictional damage to the material, but other methods are needed to ensure the stable operation of the material. The above-mentioned device requires the entire guide roller to be replaced to achieve the purpose of changing the texture, resulting in high operating costs. Utility Model Content

[0004] The purpose of this invention is to provide a loop-type guide roller structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A loose-fitting guide roller structure includes a base plate, two mounting frames fixedly connected to the upper surface of the base plate, a top plate fixedly connected to the upper surface of the mounting frames, a transmission box fixedly connected to the upper surface of the top plate, a transmission shaft rotatably connected to the front surface of the transmission box, a first bevel gear fixedly connected to the outer surface of the transmission shaft, and two lead screws rotatably connected to the upper surface of the top plate.

[0007] The mounting frame is internally connected to a limiting module, which includes an upper clamp, a lower clamp, and a universal ball. The upper clamp is movably connected to the inside of the mounting frame, the lower clamp is movably connected to the inside of the mounting frame, and the universal ball is movably connected to the outer surfaces of the upper clamp and the lower clamp.

[0008] A guide module is engaged between the upper clamp and the lower clamp. The guide module includes a roller core, a connecting sleeve, and a roller sleeve. The roller core is rotatably connected between the upper clamp and the lower clamp. A bearing is interference-fitted to the outer surface of the roller core. The connecting sleeve is nested to the outer surface of the roller core, and the roller sleeve is nested to the outer surface of the roller core.

[0009] Furthermore, the mounting frame is internally fixedly connected to a guide rail, and the universal ball and the upper clamp are rotatably connected.

[0010] Furthermore, a handwheel is fixedly connected to one end of the transmission shaft, a socket is fixedly connected to the front surface of the transmission box, a stud is fixedly connected to the front surface of the socket, a compression seat is movably connected to the front surface of the socket, a threaded ring is threaded to the outer surface of the stud, and a second bevel gear is fixedly connected to the upper end of the lead screw, with the second bevel gear meshing with the first bevel gear.

[0011] Furthermore, the limiting module also includes a socket and a threaded assembly. The socket is opened on the upper surface of the upper clamp and the lower clamp, and the threaded assembly is threadedly connected to the upper surface of the upper clamp and the lower clamp. The upper clamp and the lower clamp are connected by the threaded assembly.

[0012] Furthermore, the outer surface of the lead screw is threaded with a nut, the outer surface of the nut is fixedly connected with a connecting rod, and the connecting rod is inserted into the insertion hole.

[0013] Furthermore, the guide module also includes a limiting hole, a guide sleeve, a plug rod, a spring, and a plug. The limiting hole is opened on the outer surface of the roller core, the guide sleeve is fixedly connected to the outer surface of the connecting sleeve, the plug rod is embedded and movably connected to the inner surface of the guide sleeve, the outer surface of the guide sleeve is threaded with a threaded post, the spring is placed at the upper end of the plug rod, and the plug rod is threadedly connected to the upper end of the guide sleeve.

[0014] Furthermore, the insertion rod and the limiting hole are matched to limit the position of the connecting sleeve.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. When the drive shaft rotates, it drives the second bevel gear through the first bevel gear to rotate, so that the two lead screws rotate synchronously. When the lead screws rotate, the nut rises or falls, which drives the upper clamp and the lower clamp to rise or fall. Manually rotating the threaded ring, under the push of the thread, the extrusion seat and the handwheel contact each other, which prevents the drive shaft from rotating when conveying the roll material, thus avoiding changes in the height of the guide module.

[0017] 2. With the help of the threaded column, manually move the insertion rod to overcome the spring force and further withdraw the insertion rod from the limiting hole, so that the roller sleeve loses the external limiting component. Conversely, the installation of the roller sleeve can be completed, which facilitates the replacement of the roller sleeve and allows roller sleeves with different textures to be put into use quickly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the transmission shaft connection structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the lead screw connection structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the disassembled structure of the limiting module of this utility model.

[0022] In the diagram: 1. Base plate; 2. Mounting frame; 201. Guide rail; 3. Top plate; 301. Transmission box; 4. Transmission shaft; 401. Handwheel; 402. Socket; 403. Stud; 404. Extrusion seat; 405. Threaded ring; 406. First bevel gear; 407. Second bevel gear; 5. Limiting module; 501. Upper clamp; 502. Lower clamp; 503. Universal ball; 504. Insertion hole; 505. Threaded assembly; 6. Guide module; 601. Roller core; 602. Limiting hole; 603. Bearing; 604. Connecting sleeve; 605. Guide sleeve; 606. Insert rod; 607. Spring; 608. Plug; 609. Roller sleeve; 610. Threaded column; 7. Lead screw; 701. Nut; 702. Connecting rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0024] Please see Figure 1-4In this embodiment of the utility model, a loose-fitting guide roller structure includes a base plate 1, two mounting frames 2 are fixedly connected to the upper surface of the base plate 1, a top plate 3 is fixedly connected to the upper surface of the mounting frames 2, a transmission box 301 is fixedly connected to the upper surface of the top plate 3, a transmission shaft 4 is rotatably connected to the front surface of the transmission box 301, a first bevel gear 406 is fixedly connected to the outer surface of the transmission shaft 4, and two lead screws 7 are rotatably connected to the upper surface of the top plate 3.

[0025] The mounting frame 2 is internally connected to a limiting module 5, which includes an upper clamp 501, a lower clamp 502, and a universal ball 503. The upper clamp 501 is movably connected to the inside of the mounting frame 2, the lower clamp 502 is movably connected to the inside of the mounting frame 2, and the universal ball 503 is movably connected to the outer surfaces of the upper clamp 501 and the lower clamp 502.

[0026] A guide module 6 is engaged between the upper clamp 501 and the lower clamp 502. The guide module 6 includes a roller core 601, a connecting sleeve 604, and a roller sleeve 609. The roller core 601 is rotatably connected between the upper clamp 501 and the lower clamp 502. A bearing 603 is interference-fitted to the outer surface of the roller core 601. The connecting sleeve 604 is nested to the outer surface of the roller core 601, and the roller sleeve 609 is nested to the outer surface of the roller core 601.

[0027] Specifically, the roll material can be fed into the slitting machine with the guide module 6. When the height of the limit module 5 needs to be adjusted, the drive shaft 4 can be manually rotated to allow the upper clamp 501 and lower clamp 502 to rise along the mounting frame 2. The universal ball 503 reduces the frictional resistance during movement. At the same time, the limit module 5 has a quick-release structure, which facilitates the disassembly of the guide module 6 later. In addition, in the guide module 6, the connecting sleeve 604 limits the roller sleeve 609, which makes it easy for the user to replace roller sleeves 609 with different textures, thereby meeting the conveying needs of different roll materials.

[0028] Example 1

[0029] like Figure 1-4 As shown, the guide rail 201 is fixedly connected inside the mounting frame 2, the universal ball 503 and the upper clamp 501 are rolled together, one end of the drive shaft 4 is fixedly connected to the handwheel 401, the front surface of the transmission box 301 is fixedly connected to the socket 402, the front surface of the socket 402 is fixedly connected to the stud 403, the front surface of the socket 402 is embedded and movably connected to the compression seat 404, the outer surface of the stud 403 is threadedly connected to the threaded ring 405, the upper end of the lead screw 7 is fixedly connected to the second bevel gear 407, and the second bevel gear 407 and the first bevel gear 406 are meshed together.

[0030] In this embodiment, the universal ball 503 slides in the guide rail 201, reducing the friction force on the upper clamp 501 and lower clamp 502 when they slide in the mounting frame 2. The user can rotate the drive shaft 4 with the handwheel 401. When the drive shaft 4 rotates, it drives the second bevel gear 407 to rotate through the first bevel gear 406, so that the two lead screws 7 rotate synchronously. The threaded ring 405 is manually rotated. Under the push of the thread, the extrusion seat 404 and the handwheel 401 come into contact, preventing the drive shaft 4 from rotating when conveying the roll material, which would cause the height of the guide module 6 to change.

[0031] like Figure 1-4 As shown, a nut 701 is threaded onto the outer surface of the lead screw 7, and a connecting rod 702 is fixedly connected to the outer surface of the nut 701. The connecting rod 702 is inserted into the insertion hole 504.

[0032] In this embodiment, when the lead screw 7 rotates, the nut 701 rises or falls, which in turn drives the upper clamp 501 and the lower clamp 502 to rise or fall.

[0033] Example 2

[0034] Based on Embodiment 1, in order to overcome the problem that it is inconvenient to disassemble the guide module 6 in Embodiment 1.

[0035] like Figure 1-4 As shown, the limiting module 5 also includes a socket 504 and a threaded assembly 505. The socket 504 is opened on the upper surface of the upper clamp 501 and the lower clamp 502. The threaded assembly 505 is threadedly connected to the upper surface of the upper clamp 501 and the lower clamp 502. The upper clamp 501 and the lower clamp 502 are connected by the threaded assembly 505.

[0036] In this embodiment, the threaded assembly 505 consists of a stud, a nut, and a washer, and is used to fix the upper clamp 501 and the lower clamp 502 so that the upper clamp 501 and the lower clamp 502 can clamp the outer ring of the bearing 603. Therefore, when disassembling, the threaded assembly 505 does not need to be completely separated. Separating the connecting rod 702 and the insertion hole 504 can disconnect the limiting module 5 and the lead screw 7, which facilitates the removal of the guide module 6.

[0037] like Figure 1-4As shown, the guide module 6 also includes a limiting hole 602, a guide sleeve 605, an insert rod 606, a spring 607, and a plug 608. The limiting hole 602 is opened on the outer surface of the roller core 601. The guide sleeve 605 is fixedly connected to the outer surface of the connecting sleeve 604. The insert rod 606 is embedded and movably connected to the inner surface of the guide sleeve 605. A threaded post 610 is threadedly connected to the outer surface of the guide sleeve 605. The spring 607 is placed at the upper end of the insert rod 606. The plug 608 is threadedly connected to the upper end of the guide sleeve 605. The insert rod 606 and the limiting hole 602 match to limit the connecting sleeve 604.

[0038] In this embodiment, the threaded post 610 is used to manually move the insertion rod 606, so that the insertion rod 606 overcomes the elastic force of the spring 607 and further withdraws the insertion rod 606 from the inside of the limiting hole 602, so that the roller sleeve 609 loses the external limiting component. Conversely, the installation of the roller sleeve 609 can be completed, which facilitates the replacement of the roller sleeve 609 and allows roller sleeves 609 with different textures to be put into use quickly.

[0039] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] 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 looper guide roller structure, comprising a base plate (1), two mounting frames (2) fixedly connected to the upper surface of the base plate (1), a top plate (3) fixedly connected to the upper surface of the mounting frames (2), a transmission box (301) fixedly connected to the upper surface of the top plate (3), a transmission shaft (4) rotatably connected to the front surface of the transmission box (301), a first bevel gear (406) fixedly connected to the outer surface of the transmission shaft (4), and two lead screws (7) rotatably connected to the upper surface of the top plate (3); Its features are, The mounting frame (2) has an internal sliding connection to a limiting module (5), the limiting module (5) comprising: The upper clamp (501) is movably connected to the inside of the mounting frame (2); The lower clamp (502) is movably connected to the inside of the mounting frame (2); The omnidirectional ball (503) is movably connected to the outer surfaces of the upper clamp (501) and the lower clamp (502); A guide module (6) is engaged between the upper clamp (501) and the lower clamp (502), and the guide module (6) includes: The roller core (601) is rotatably connected between the upper clamp (501) and the lower clamp (502), and the outer surface of the roller core (601) is interference-fitted with a bearing (603); The connecting sleeve (604) is nested and connected to the outer surface of the roller core (601); Roller sleeve (609) is nested and connected to the outer surface of roller core (601).

2. The loop-type guide roller structure according to claim 1, characterized in that, The mounting frame (2) is internally fixedly connected to a guide rail (201), and the universal ball (503) and the upper clamp (501) are rotatably connected.

3. The loop-type guide roller structure according to claim 1, characterized in that, A handwheel (401) is fixedly connected to one end of the drive shaft (4), a socket (402) is fixedly connected to the front surface of the transmission box (301), a stud (403) is fixedly connected to the front surface of the socket (402), a pressing seat (404) is embedded and movably connected to the front surface of the socket (402), a threaded ring (405) is threadedly connected to the outer surface of the stud (403), and a second bevel gear (407) is fixedly connected to the upper end of the lead screw (7), and the second bevel gear (407) and the first bevel gear (406) are meshed together.

4. The loop-type guide roller structure according to claim 1, characterized in that, The limiting module (5) also includes: A socket (504) is provided on the upper surface of the upper clamp (501) and the lower clamp (502); A threaded assembly (505) is threadedly connected to the upper surfaces of the upper clamp (501) and the lower clamp (502), and the upper clamp (501) and the lower clamp (502) are connected by the threaded assembly (505).

5. The loop-type guide roller structure according to claim 4, characterized in that, The outer surface of the lead screw (7) is threaded with a nut (701), and the outer surface of the nut (701) is fixedly connected with a connecting rod (702), which is inserted into the insertion hole (504).

6. The loop-type guide roller structure according to claim 1, characterized in that, The guidance module (6) also includes: A limiting hole (602) is formed on the outer surface of the roller core (601); Guide sleeve (605) is fixedly connected to the outer surface of connecting sleeve (604); The insert rod (606) is embedded in the inner surface of the guide sleeve (605), and the outer surface of the guide sleeve (605) is threaded with a threaded post (610). A spring (607) is placed at the upper end of the insert (606); The plug (608) is threaded to the upper end of the guide sleeve (605).

7. The loose-fitting guide roller structure according to claim 6, characterized in that, The insertion rod (606) and the limiting hole (602) are matched to limit the connecting sleeve (604).

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