Guide roller convenient to replace

Abstract

The utility model discloses a guide roller convenient to replace, which comprises two guide frames and a roller, the roller is arranged in the middle of the two guide frames, the bottoms of the two guide frames are respectively provided with a rest stand, a support shaft is arranged between the inner walls of the two guide frames, the roller is movably sleeved with one end of the support shaft, and the other end of the support shaft is provided with a guide rod. Limiting blocks are fixedly installed on one sides of the two storage racks, limiting grooves are formed in the top ends of the two limiting blocks, the storage racks, the limiting blocks, clamping strips, limiting rods, limiting holes and abutting rings are arranged, the bottoms of the two guide racks are embedded into the two storage racks, at the moment, the two clamping strips are embedded into the two limiting grooves to be clamped, and then the two guide racks are clamped into the two limiting grooves. The roller can be rapidly installed on the top of the rest stand, the outer surfaces of the two guide frames are tightly attached to the inner surface of the rest stand, the guide frames are conveniently positioned, the installation speed of the guide roller is increased, and the two abutting rings can support the bottom face of the supporting shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of guide rollers, in particular to a guide roller which is easy to replace. Background Art

[0002] Rollers, also known as rollers, are cylindrical parts, divided into driving rollers and driven rollers, and are widely used in various transmission and conveying systems such as rotary screen printing machines, digital printers, mining conveying equipment, papermaking and packaging machinery; they are usually made of seamless steel pipes. Guide rollers are cylindrical rotating objects on the machine, rotating quickly like wheels, and the hubs are neat and uniform.

[0003] A patent with publication number CN217497401U discloses a guide roller that is easy to replace, including a fixed shaft, a guide roller, a limiting mechanism and a replacement mechanism; wherein the guide roller is sleeved on the surface of the fixed shaft, and bearings are fixedly sleeved at opposite ends of the fixed shaft; the replacement mechanism includes a mounting seat, a lower slot, a limiting plate, a fixed plate, an upper slot, a connecting plate and connecting bolts, and a lower slot is opened on the top side surface of the mounting seat, and a bearing is placed in the inner cavity of the lower slot.

[0004] In the above technology, the connecting bolt can be rotated, and the end of the connecting bolt passes through the connecting plate and is threadedly connected to the top surface of the mounting seat, thereby improving the placement stability of the bearing between the fixed plate and the mounting seat and facilitating the use of the fixed shaft and the guide roller. However, it takes a long time to position the two ends of the guide roller on the bearing, and replacing the guide roller requires rotating multiple bolts in the opposite direction. When the guide roller rotates at the end of the fixed shaft, the speed of the guide roller moving at the end of the fixed shaft increases with the increase in rotation speed. Therefore, the degree of wear on the inner surface of the guide roller is relatively large, which increases the cost of replacing the guide roller, so innovation is made in this technology. Utility Model Content

[0005] The purpose of the utility model is to provide a guide roller that is easy to replace, so as to solve the problem proposed in the above-mentioned background technology that replacing the guide roller requires rotating multiple bolts in the opposite direction, and when the guide roller rotates at the end of the fixed shaft, the speed of the guide roller moving at the end of the fixed shaft increases with the increase in rotation speed, so the degree of wear on the inner surface of the guide roller is relatively large.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a guide roller that is easy to replace, comprising two guide frames and a roller, the roller is arranged at the middle position of the two guide frames, a shelf frame is arranged at the bottom of the two guide frames, a support shaft is arranged between the inner walls of the two guide frames, the roller is movably sleeved on one end of the support shaft, a limiting block is fixedly installed on one side of the two shelves, a limiting groove is provided at the top of the two limiting blocks, a clamping strip is fixedly installed on one side of the two guide frames, a support block is fixedly installed on one side of the two limiting blocks, a buffer rod is arranged on one side of the two support blocks, and an abutment plate is arranged at one end of the two buffer rods.

[0007] As a preferred technical solution of the utility model, the two clamping strips are respectively engaged and connected with the two limiting grooves, and the front sides of the two limiting blocks are rotatably mounted with limiting rods.

[0008] As a preferred technical solution of the utility model, the front sides of the two clamping strips are both provided with limiting holes, and the two limiting rods are respectively threadedly connected to the two limiting holes.

[0009] As a preferred technical solution of the utility model, the outsides of the two buffer rods are both wound with return springs, and one end of the two return springs is fixedly connected to the other side of the two support blocks respectively.

[0010] As a preferred technical solution of the utility model, a reinforcement plate is fixedly installed on the bottom ends of the two support blocks.

[0011] As a preferred technical solution of the utility model, one side of the two abutment plates is fixedly connected to one end of the two buffer rods respectively, and the top ends of the two abutment plates are both provided with abutment rings.

[0012] As a preferred technical solution of the present utility model, the two abutment rings are arranged at corresponding positions.

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

[0014] The utility model discloses a guide roller which is easy to replace. By arranging a shelf, a limit block, a clamping strip, a limit rod, a limit hole and an abutment ring, the bottoms of the two guide frames are embedded into the insides of the two shelf frames, at which time the two clamping strips are embedded into the insides of the two limit grooves for clamping, and one end of the two limit rods is embedded into the insides of the limit holes for threaded connection again, so that the roller can be quickly installed on the top of the shelf, the outer surfaces of the two guide frames are tightly fitted with the inner surfaces of the shelf frames, which is convenient for positioning the guide frames and improves the speed of installing the guide rollers, and the two abutment rings can support the bottom surface of the support shaft.

[0015] The utility model discloses a guide roller which is easy to replace. A support block, a reinforcement plate, a buffer rod, a reset spring and an abutment plate are provided. When the roller rotates at one end of the support shaft, the abutment ring is squeezed, and the abutment plate continues to move inward, thereby driving the buffer rod to penetrate and move inside the support block. The reset spring is compressed and deformed when subjected to force. The reset spring can absorb some energy and convert kinetic energy into elastic potential energy, thereby reducing the impact of the abutment plate on the surface of the support block. The interpenetration of the two buffer rods can slow down the rotation speed of the roller at one end of the support shaft, and the roller can be limited to rotate at the middle position of the two abutment rings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view structural schematic diagram of the utility model;

[0017] Figure 2 It is a side view structural schematic diagram of the utility model;

[0018] Figure 3 It is a partial front view structural schematic diagram of the utility model;

[0019] Figure 4 For the utility model Figure 3 Enlarged view of point A in the middle.

[0020] In the figure: 1. guide frame; 2. roller; 3. shelf; 4. support shaft; 5. limit block; 6. limit groove; 7. clamping strip; 8. limit hole; 9. limit rod; 10. support block; 11. reinforcement plate; 12. buffer rod; 13. reset spring; 14. abutment plate; 15. abutment ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution for a guide roller that is easy to replace:

[0023] Embodiment 1:

[0024] like Figure 1-3As shown, a guide roller that is easy to replace includes two guide frames 1 and a roller 2. The roller 2 is arranged at the middle position of the two guide frames 1. A shelf 3 is arranged at the bottom of the two guide frames 1. A support shaft 4 is arranged between the inner walls of the two guide frames 1. The roller 2 and one end of the support shaft 4 are movably sleeved. A limiting block 5 is fixedly installed on one side of the two shelf frames 3. The top of the two limiting blocks 5 is provided with a limiting groove 6. A clamping strip 7 is fixedly installed on one side of the two guide frames 1. A support block 10 is fixedly installed on one side of the two limiting blocks 5. One side of the two support blocks 10 A buffer rod 12 is provided, and an abutment plate 14 is provided at one end of the two buffer rods 12. Limiting holes 8 are provided on the front sides of the two clamping strips 7. The two limiting rods 9 are respectively threadedly connected with the two limiting holes 8. The bottom of the guide frame 1 is embedded in the interior of the two shelves 3. At this time, the two clamping strips 7 are embedded in the interior of the two limiting grooves 6 for engagement, and one end of the two limiting rods 9 is embedded in the interior of the limiting hole 8 for threaded connection again, so that the roller 2 can be quickly installed on the top of the shelves 3, and the outer surfaces of the two guide frames 1 are tightly fitted with the inner surfaces of the shelves 3.

[0025] Embodiment 2:

[0026] Based on the first embodiment, Figure 1 and Figure 4 As shown, the outside of the two buffer rods 12 are wound with return springs 13, one end of the two return springs 13 is fixedly connected to the other side of the two support blocks 10, one side of the two abutment plates 14 is fixedly connected to one end of the two buffer rods 12, and the top of the two abutment plates 14 is provided with abutment rings 15. The utility model provides a guide roller that is easy to replace. By providing a support block 10, a reinforcement plate 11, a buffer rod 12, a return spring 13 and an abutment plate 14, when the roller 2 rotates at one end of the support shaft 4, it will squeeze the abutment ring 15, and the abutment plate 14 will continue to move inward, which will then drive the buffer rod 12 to move through the inside of the support block 10, and the return spring 13 will be compressed and deformed under the force.

[0027] Working principle: when the replaced roller 2 needs to be installed inside the shelf 3, the staff can lift the two guide frames 1, and then move the two guide frames 1 downward to gradually embed the bottom surfaces of the two guide frames 1 into the inside of the two shelf frames 3. At this time, the two card strips 7 can be accurately embedded in the inside of the limiting groove 6, and the two are engaged with each other. The staff again embeds one end of the two limiting rods 9 into the inside of the limiting hole 8 for threaded connection, so that the roller 2 can be quickly installed on the top of the shelf 3. The outer surfaces of the two guide frames 1 are tightly fitted with the inner surfaces of the shelf 3, which is convenient for positioning the guide frames 1 and improves the speed of guide roller installation. The two abutment rings 15 can support the bottom surface of the support shaft 4. When the roller 2 rotates at one end of the support shaft 4, it will squeeze the abutment ring 15, thereby driving the abutment The plate 14 moves, and the abutment plate 14 continues to move inward, which in turn drives the buffer rod 12 to penetrate and move inside the support block 10. The return spring 13 is compressed and deformed under force. The return spring 13 can absorb some energy and convert kinetic energy into elastic potential energy, thereby reducing the impact of the abutment plate 14 on the surface of the support block 10 and reducing the speed of the roller 2 moving on the surface of the support shaft 4. The interlacing of the two buffer rods 12 can slow down the rotation speed of the roller 2 at one end of the support shaft 4, and can limit the rotation of the roller 2 at the middle position of the two abutment rings 15, thereby avoiding the roller 2 from moving back and forth on the outer surface of the support shaft 4 to a large extent, improving the quality of the roller 2 rotation, preventing the roller 2 from being damaged over a large area due to large-scale friction with the outer surface of the support shaft 4, and extending the service life of the roller 2. The subsequent working process is the same as that of the comparative document.

[0028] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A guide roller that is easy to replace, comprising two guide frames (1) and a roller (2), wherein the roller (2) is arranged at a middle position between the two guide frames (1), and is characterized in that: A shelf (3) is provided at the bottom of the two guide frames (1), a support shaft (4) is provided between the inner walls of the two guide frames (1), the roller (2) is movably sleeved with one end of the support shaft (4), a limit block (5) is fixedly installed on one side of the two shelf frames (3), a limit groove (6) is provided at the top of the two limit blocks (5), a clamping strip (7) is fixedly installed on one side of the two guide frames (1), a support block (10) is fixedly installed on one side of the two limit blocks (5), a buffer rod (12) is provided on one side of the two support blocks (10), and an abutment plate (14) is provided at one end of the two buffer rods (12).

2. The guide roller that is easy to replace according to claim 1, characterized in that: The two clamping strips (7) are respectively engaged and connected with the two limiting grooves (6), and the front sides of the two limiting blocks (5) are rotatably mounted with limiting rods (9).

3. The guide roller that is easy to replace according to claim 2 is characterized in that: The front sides of the two clamping strips (7) are each provided with a limiting hole (8), and the two limiting rods (9) are respectively threadedly connected to the two limiting holes (8).

4. The guide roller that is easy to replace according to claim 1 is characterized in that: A return spring (13) is wound around the outside of the two buffer rods (12), and one end of the two return springs (13) is fixedly connected to the other side of the two support blocks (10) respectively.

5. The guide roller that is easy to replace according to claim 4 is characterized in that: A reinforcement plate (11) is fixedly mounted on the bottom ends of the two support blocks (10).

6. The guide roller that is easy to replace according to claim 1, characterized in that: One side of the two abutment plates (14) is fixedly connected to one end of the two buffer rods (12) respectively, and the top ends of the two abutment plates (14) are both provided with an abutment ring (15).

7. The guide roller that is easy to replace according to claim 6, characterized in that: The two abutment rings (15) are arranged at corresponding positions.

Images