A printer rubber roller

Abstract

The application relates to a printer rubber roller, relates to the field of printer components, and comprises a roller cylinder, two end plates, a rotating shaft, a rubber layer and a clamping mechanism, the roller cylinder is of a hollow structure, the two end plates are arranged at two ends of the roller cylinder and are detachably connected with the roller cylinder, the rotating shaft is installed on the end plates, the rubber layer is arranged on the outer wall of the roller cylinder, and the clamping mechanism is arranged between the two end plates and used for supporting and clamping on the inner wall of the roller cylinder. The application has the effect of reducing the weight of the roller cylinder.

Description

Technical Field

[0001] This application relates to the field of printer components, and more particularly to a printer roller. Background Technology

[0002] The rubber roller in a printer is a core component made of a metal roller core wrapped with elastic materials such as rubber or polyurethane. It is responsible for key functions such as paper transport, toner transfer, and pressure control.

[0003] Existing printer rubber rollers consist of a roller, a rubber layer, and two rotating shafts. The roller has a cylindrical structure, and the two rotating shafts are coaxially fixed to the end faces of the roller. The rubber layer is bonded to the outer wall of the roller. By installing the rotating shafts in the printer, the roller can rotate within the printer, and the rubber layer presses the paper. After prolonged use, users need to inspect the roller. When wear appears on the rubber layer, it needs to be sanded to maintain a high level of cylindricity.

[0004] The aforementioned technical solutions have the following drawbacks: to ensure the structural strength of the roller, the roller is made of metal and has a solid cylindrical structure. The overall weight of the roller is relatively large, and the replacement and transportation costs are high. Utility Model Content

[0005] To reduce the weight of the roller, this application provides a printer roller.

[0006] The printer roller provided in this application adopts the following technical solution: A printer roller includes a roller, two end plates, a rotating shaft, a rubber layer, and a snap-fit ​​mechanism. The roller has a hollow structure. The two end plates are respectively disposed at both ends of the roller and are detachably connected to the roller. The rotating shaft is mounted on the end plates. The rubber layer is disposed on the outer wall of the roller. The snap-fit ​​mechanism is disposed between the two end plates and is used to support and snap onto the inner wall of the roller.

[0007] By adopting the above technical solution, end plates are set at both ends of the roller, making the end plates detachably connected to the roller. A snap-fit ​​mechanism is set between the two end plates, which supports the inner wall of the roller and improves the structural strength of the roller. When the roller is snapped into the snap-fit ​​mechanism, the shaft can drive the roller to rotate when the shaft is installed on the printer. The roller has a hollow structure, which can reduce the overall weight.

[0008] Optionally, a convex circular plate is provided on the end face of the roller, and multiple through holes are opened on the end plate and the convex circular plate, with bolts installed in the through holes.

[0009] By adopting the above technical solution, a convex circular plate is set on the end face of the roller, and the convex circular plate is connected to the end plate by bolts, which facilitates disassembly and makes the end plate and the roller stably connected.

[0010] Optionally, the bolts are arranged at equal intervals along the circumference of the roller.

[0011] By adopting the above technical solution, and by setting the bolts at equal intervals along the circumference of the roller, the bolts and the roller are subjected to uniform force.

[0012] Optionally, the locking mechanism includes two rotating rods and a locking strip. The two rotating rods are respectively disposed on both sides of the locking strip. One end of the rotating rod is rotatably connected to the end plate, and the other end is rotatably connected to the locking strip. The locking strip is used to support the inner wall of the roller.

[0013] By adopting the above technical solution, a rotating rod and a locking strip are set on the locking mechanism, so that the rotating rod and the locking strip are rotatably connected. When the end plate is connected to the roller, the rotating rod is inclined relative to the end plate, and the rotating rod plays the role of supporting the locking strip, so that the locking strip can abut against the inner wall of the roller. When the end plate is disconnected from the roller, by pulling the end plate, the locking strip can be moved towards the direction of the roller axis, thereby allowing the roller to disconnect from the locking mechanism.

[0014] Optionally, a groove is provided on the inner wall of the roller, the length direction of the groove is parallel to the length direction of the roller, and the clip is engaged in the groove.

[0015] By adopting the above technical solution, a slot is opened on the inner wall of the roller, so that the clip can be engaged in the slot. Thus, when the rotating shaft drives the end plate to rotate, the end plate drives the roller to rotate synchronously through the engagement mechanism.

[0016] Optionally, the card strip has a bevel.

[0017] By adopting the above technical solution, by creating a bevel on the card strip, when the card strip moves through the rotating rod, the bevel of the card strip contacts the card slot, thereby enabling the card strip to slide quickly into the card slot and improving installation efficiency.

[0018] Optionally, multiple locking mechanisms are provided, and the multiple locking mechanisms are equally spaced along the circumferential direction of the end plate.

[0019] By adopting the above technical solution, and by setting multiple snap-fit ​​mechanisms on the end plate, the snap-fit ​​mechanisms are evenly spaced along the circumference of the end plate, so that the multiple snap-fit ​​mechanisms can provide uniform support for the roller, and the dynamic balance of the roller is better when it rotates.

[0020] Optionally, a mounting hole is provided at the center of the end plate, and a connecting plate is detachably connected to the end plate. The end of the rotating rod is rotatably connected to the connecting plate, and the rotating shaft is connected to the connecting plate.

[0021] By adopting the above technical solution, by opening an installation hole at the center of the end plate, the connecting plate can be disengaged from the end plate, and by removing the end plate, the roller can slide out from the clamping mechanism.

[0022] In summary, the beneficial technical effects of this application are as follows: 1. By setting end plates at both ends of the roller, the end plates can be detachably connected to the roller. By setting a snap-fit ​​mechanism between the two end plates, the snap-fit ​​mechanism can support the inner wall of the roller, thereby improving the structural strength of the roller. By snapping the roller with the snap-fit ​​mechanism, when the rotating shaft is installed on the printer, the rotating shaft can drive the roller to rotate. The roller has a hollow structure, which can reduce the overall weight. 2. By setting a rotating rod and a locking strip on the locking mechanism, the rotating rod and the locking strip are rotatably connected. When the end plate is connected to the roller, the rotating rod is inclined relative to the end plate. The rotating rod plays the role of supporting the locking strip, which allows the locking strip to abut against the inner wall of the roller. When the end plate is disconnected from the roller, by pulling the end plate, the locking strip can be moved towards the direction of the roller axis, thereby allowing the roller to disconnect from the locking mechanism. 3. By setting multiple snap-fit ​​mechanisms on the end plate, and making the snap-fit ​​mechanisms equally spaced along the circumference of the end plate, the multiple snap-fit ​​mechanisms can provide uniform support for the roller, resulting in better dynamic balance when the roller rotates. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0024] Figure 2 This is a schematic diagram of the structure of the roller according to an embodiment of this application.

[0025] Figure 3 This is a schematic diagram of the connection structure between the snap-fit ​​mechanism and the end plate in an embodiment of this application.

[0026] Figure 4 This is a schematic diagram of the snap-fit ​​mechanism according to an embodiment of this application.

[0027] Figure 5 yes Figure 4 Enlarged view of section A.

[0028] Reference numerals: 1. Roller; 11. Convex circular plate; 12. Slot; 2. End plate; 21. Bolt; 22. Mounting hole; 23. Connecting plate; 3. Rotating shaft; 4. Rubber layer; 5. Clamping mechanism; 51. Rotating rod; 52. Clamping strip; 521. Inclined surface. Detailed Implementation

[0029] The present application will be further described in detail below with reference to the accompanying drawings.

[0030] This application discloses a printer roller, as shown in the embodiments below. Figure 1 and Figure 2The system includes a roller 1, two end plates 2, two rotating shafts 3, and a rubber layer 4. The roller 1 has a cylindrical structure, and the rubber layer 4 has a cylindrical structure and is fitted onto the outer wall of the roller 1. The two end plates 2 are detachably connected to the end faces of the roller 1, and a rotating shaft 3 is coaxially connected to the center of each end plate 2. The rotating shaft 3 is used to install on the printer. When the roller 1 rotates, the rubber layer 4 rolls and presses the paper or prints. After prolonged use, the outer surface of the rubber roller needs to be polished to maintain its cylindrical shape. After repeated polishing, the rubber layer 4 will fall off and become unusable. Users can replace the rubber layer 4 on the roller 1 by removing the end plates 2 from the roller 1.

[0031] Reference Figure 2 The roller 1 has a hollow cylindrical structure. A convex circular plate 11 is connected to the end face of the roller 1. Multiple bolts 21 are provided on the end plate 2. The bolts 21 pass through the end plate 2 and the convex circular plate 11 and are threadedly connected to the convex circular plate 11. The multiple bolts 21 are equidistantly spaced along the circumference of the end plate 2.

[0032] Reference Figure 3 and Figure 4 A locking mechanism 5 is provided between the two end plates 2. The locking mechanism 5 includes two rotating rods 51 and a locking strip 52. The two rotating rods 51 are respectively connected to the two ends of the locking strip 52. One end of the rotating rod 51 is rotatably connected to the end of the locking strip 52, and the other end is rotatably connected to the end plate 2. The connection point between the rotating rod 51 and the end plate 2 is close to the center of the end plate 2. Multiple locking mechanisms 5 are equidistantly arranged along the circumference of the end plate 2. Multiple slots 12 are provided on the inner wall of the roller 1. The length direction of the slots 12 is parallel to the length direction of the roller 1, and the multiple slots 12 are equidistantly arranged along the circumference of the roller 1. The locking strip 52 is used to lock into the slot 12. When the two end plates 2 are connected to the convex circular plate 11 at the end of the roller 1, the rotating rods 51 are inclined relative to the end plates 2 and support the locking strip 52. The locking strip 52 can be locked into the slot 12 and is parallel to the length direction of the roller 1. The rotating rod 51 provides support to the roller 1 through the clamping strip 52, which makes the structure of the roller 1 better. When the rotating shaft 3 drives the end plate 2 to rotate, the end plate 2 can drive the roller 1 to rotate through the clamping strip 52. The inside of the roller 1 is set as a hollow structure, which reduces the overall weight of the rubber roller, saves production costs, and makes it convenient to use and replace.

[0033] Reference Figure 3 An installation hole 22 is provided at the center of the end plate 2. A connecting plate 23 is detachably connected to the end plate 2 by bolts. One side of the connecting plate 23 is rotatably connected to the rotating rod 51, and the other side is coaxially connected to the rotating shaft 3. When the user needs to replace the roller 1, the end plate 2 can be removed from the connecting plate 23 by disengaging the end plate 2 from the convex circular plate 11. At this time, pulling the connecting plate 23 will cause the rotating rod 51 to rotate, bringing the locking strip 52 closer to the axis of the roller 1. The locking strip 52 will then disengage from the locking groove 12, allowing the user to load and unload the roller 1.

[0034] Reference Figure 4 and Figure 5 The card strip 52 has an inclined surface 521 on the side surface near the inner wall of the roller 1. The top surface area of ​​the card strip 52 is small and the bottom surface area is large. When the card strip 52 approaches the inner wall of the roller 1 and is inserted into the card slot 12, the edge of the card slot 12 contacts the inclined surface 521, so that the card strip 52 can be accurately inserted into the card slot 12.

[0035] The implementation principle of this application embodiment is as follows: by setting an end plate 2 at the end of the roller 1 and setting a rotating shaft 3 on the end plate 2, the user can replace the roller 1, thereby achieving the effect of replacing the rubber layer 4 on the roller 1. By setting a snap-fit ​​mechanism 5 between the two end plates 2, the snap-fit ​​strip 52 is supported by the rotating rod 51 and kept parallel to the roller 1. The snap-fit ​​strip 52 can support the roller 1 and snap-fit ​​with the roller 1, thereby fixing the roller 1.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A printer roller, characterized in that: It includes a roller (1), two end plates (2), a rotating shaft (3), a rubber layer (4), and a snap-fit ​​mechanism (5). The roller (1) has a hollow structure. The two end plates (2) are respectively set at both ends of the roller (1) and are detachably connected to the roller (1). The rotating shaft (3) is installed on the end plates (2). The rubber layer (4) is set on the outer wall of the roller (1). The snap-fit ​​mechanism (5) is set between the two end plates (2). The snap-fit ​​mechanism (5) is used to support and snap onto the inner wall of the roller (1).

2. A printer roller according to claim 1, characterized in that: A convex circular plate (11) is provided on the end face of the roller (1). Multiple through holes are provided on the end plate (2) and the convex circular plate (11), and bolts (21) are provided in the through holes.

3. A printer roller according to claim 2, characterized in that: Multiple bolts (21) are equidistantly spaced along the circumference of the roller (1).

4. A printer roller according to claim 1, characterized in that: The locking mechanism (5) includes two rotating rods (51) and a locking strip (52). The two rotating rods (51) are respectively set on both sides of the locking strip (52). One end of the rotating rod (51) is rotatably connected to the end plate (2), and the other end is rotatably connected to the locking strip (52). The locking strip (52) is used to support the inner wall of the roller (1).

5. A printer roller according to claim 4, characterized in that: The inner wall of the roller (1) is provided with a slot (12), the length direction of the slot (12) is parallel to the length direction of the roller (1), and the clip (52) is engaged in the slot (12).

6. A printer roller according to claim 5, characterized in that: The card strip (52) has a bevel (521).

7. A printer roller according to claim 4, characterized in that: The snap-fit ​​mechanism (5) is configured as multiple, and the multiple snap-fit ​​mechanisms (5) are equally spaced along the circumferential direction of the end plate (2).

8. A printer roller according to claim 7, characterized in that: The end plate (2) has a mounting hole (22) at its center. A connecting plate (23) is detachably connected to the end plate (2). The end of the rotating rod (51) is rotatably connected to the connecting plate (23). The rotating shaft (3) is connected to the connecting plate (23).

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