Rubber roller quick release structure and printer

Abstract

The utility model provides a rubber roller quick release structure and printer, the rubber roller quick release structure comprises a base assembly and a rubber roller arranged on the base assembly, one end of the rubber roller is provided with a transmission shaft, one side of the transmission shaft facing the rubber roller is provided with a first matching part, and the corresponding end part of the rubber roller is provided with a second matching part. The first matching part is matched with the second matching part, so that the transmission shaft and the rubber roller are circumferentially limited; the other end of the rubber roller is provided with a bearing arranged at the end of the rubber roller in a sleeving mode and a blocking piece arranged on the bearing in a sleeving mode, the blocking piece is detachably connected with a through hole formed in the base assembly, and the inner diameter of the through hole is larger than the maximum outer diameter of the rubber roller. The rubber roller can be assembled and disassembled by screwing or loosening the plugging piece and the through hole in a matched manner, so that the rubber roller is very convenient to assemble and disassemble.

Description

Technical Field

[0001] The utility model relates to the field of printers, in particular to a rubber roller quick-detachable structure and a printer. Background Art

[0002] The rubber roller is a consumable part in the printer and needs to be replaced when it is worn. In the traditional way of installing and removing the rubber roller, the mounting base needs to be disassembled as a whole, which makes the disassembly and installation process cumbersome on the one hand, and the mounting base needs to be repositioned during installation, which not only leads to low disassembly and installation efficiency, but also may affect the installation accuracy. Utility Model Content

[0003] The utility model aims to provide a rubber roller quick-detachable structure and a printer.

[0004] The utility model aims to solve the problem that the existing rubber roller disassembly and assembly method is complicated.

[0005] In order to solve the above problems, the utility model is implemented through the following technical solutions:

[0006] A rubber roller quick-release structure comprises a base assembly and a rubber roller arranged on the base assembly, wherein a transmission shaft is arranged at one end of the rubber roller, a first mating portion is provided on the side of the transmission shaft facing the rubber roller, a second mating portion is provided at the end corresponding to the rubber roller, and the cooperation between the first mating portion and the second mating portion enables the transmission shaft and the rubber roller to be circumferentially limited; a bearing sleeved on the end of the rubber roller and a sealing member sleeved on the bearing are arranged at the other end of the rubber roller, the sealing member is detachably connected to a through hole arranged on the base assembly, and the inner diameter of the through hole is larger than the maximum outer diameter of the rubber roller.

[0007] Furthermore, the transmission shaft, the rubber roller, the bearing, and the blocking member are coaxially arranged, and the first matching portion and the second matching portion are coaxially arranged.

[0008] Further, the first matching portion is an internal spline provided on the transmission shaft, and the second matching portion is an external spline provided on the end of the rubber roller and adapted to the internal spline.

[0009] Furthermore, a step is coaxially arranged on the other end of the rubber roller, and the bearing sleeve is arranged on the end of the rubber roller and abuts against the step.

[0010] Furthermore, the blocking member is connected to the through hole by threaded connection or snap-fit ​​connection.

[0011] Furthermore, a tool rod is provided on the base assembly, a groove is provided on the end surface of the blocking piece, the end of the tool rod is adapted to the groove, and the groove cooperates with the tool rod so that the tool rod and the blocking piece are circumferentially limited.

[0012] Furthermore, a slot is provided on the base assembly, the tool rod is inserted into the slot, and a handle is provided at the other end of the tool rod, and the handle is exposed from the slot.

[0013] A printer comprises the above-mentioned rubber roller quick-release structure.

[0014] Compared with the prior art, the technical solution of the utility model and its beneficial effects are as follows:

[0015] (1) The utility model provides a quick-disassembly structure for a rubber roller. When disassembling, first remove the sealing member, then remove the bearing, and then move the rubber roller toward the through hole until the rubber roller is completely detached from the base assembly. When installing, pass one end of the rubber roller provided with the second matching portion through the through hole and match it with the second matching portion on the transmission shaft for installation, then sequentially sleeve the bearing and the sealing member on the other end of the rubber roller, and finally tightly connect the sealing member with the through hole. The installation and disassembly of the rubber roller can be achieved by tightening or loosening the sealing member and the through hole, making the assembly and disassembly very convenient.

[0016] (2) The transmission shaft, rubber roller, first matching part and second matching part of the utility model are coaxially arranged. The rubber roller, bearing and blocking member are coaxially arranged to improve the installation accuracy of the rubber roller, thereby improving the rotation accuracy of the rubber roller.

[0017] (3) The utility model adds a matching tool rod. Each time when replacing, the tool rod can be pulled out to start disassembly and assembly, which is very convenient. At the same time, a slot for placing the tool rod is provided, which is more convenient for storing tools and avoids the loss of tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an exploded view of a rubber roller quick-release structure provided by an embodiment of the utility model;

[0019] Figure 2 It is a cross-sectional view of a rubber roller quick-release structure provided by an embodiment of the utility model;

[0020] Figure 3 It is an assembly diagram of a rubber roller quick-disassembly structure provided by an embodiment of the utility model.

[0021] Illustration Description:

[0022] Base assembly-1; through hole-11; slot-12; rubber roller-2; second matching part-21; step-22; transmission shaft-3; first matching part-31; bearing-4; blocking member-5; groove-51; tool rod-6, handle-61. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 3 A rubber roller quick-release structure includes a base assembly 1 and a rubber roller 2 arranged on the base assembly. A transmission shaft 3 is arranged at one end of the rubber roller 2, and a first matching portion 31 is provided on the side of the transmission shaft 3 facing the rubber roller 2, and a second matching portion 21 is provided at the corresponding end of the rubber roller 2. The matching of the first matching portion 31 and the second matching portion 21 allows the transmission shaft 3 and the rubber roller 2 to be circumferentially limited, so that the circumferential rotation of the transmission shaft 3 can drive the rubber roller 2 to rotate circumferentially. The other end of the rubber roller 2 is provided with a bearing 4 sleeved on the end of the rubber roller 2, and a blocking member 5 sleeved on the bearing 4 and detachably connected to the base assembly 1. Specifically, the blocking member 5 is detachably connected to a through hole 11 arranged on the base assembly 1, and the other end of the rubber roller 2 is fixed to the base assembly 1 through the blocking member 5 and the bearing 4.

[0025] When disassembling, first remove the blocking piece 5, then remove the bearing 4, and then move the rubber roller 2 toward the through hole 11. Since the inner diameter of the through hole 11 is larger than the maximum outer diameter of the rubber roller 2, the rubber roller 2 passes through the through hole 11 until the rubber roller 2 is completely detached from the base assembly 1. When installing, pass one end of the rubber roller 2 provided with the second matching portion 21 through the through hole 11 and match it with the second matching portion 31 on the transmission shaft 3, and then sleeve the bearing 4 and the blocking piece 5 on the other end of the rubber roller 2 in sequence, and finally tightly connect the blocking piece 5 with the through hole 11, so that the rubber roller 2 can be quickly installed and disassembled.

[0026] In this embodiment, the transmission shaft 3, the rubber roller 2, the first matching portion 31 and the second matching portion 21 are coaxially arranged. The rubber roller 2, the bearing 4 and the blocking member 5 are coaxially arranged to improve the installation accuracy of the rubber roller 2, thereby improving the rotation accuracy of the rubber roller 2.

[0027] Specifically, the first matching part 31 is an internal spline arranged on the transmission shaft 3, and the second matching part 21 is an external spline arranged at the end of the rubber roller 2 and adapted to the internal spline. The internal spline can be a rectangular groove, an internal hexagon, an internal pentagon, or a structure with a plurality of teeth arranged in the groove. The external spline is adapted to the internal spline as long as they can bite into each other to form a circumferential limit.

[0028] A step 22 is coaxially arranged at the other end of the rubber roller 2. During assembly, the bearing 4 is sleeved on the end of the rubber roller 2, with one end face of the bearing 4 abutting against the step 22 and the other end face opposite to the blocking member 5, thereby fixing the position of the bearing 4 relative to the rubber roller 2.

[0029] The plugging member 5 is threadedly connected to the through hole 11 or snap-fitted. In this embodiment, the plugging member 5 is threadedly connected to the through hole 11. A groove 51 is provided on the end face of the plugging member 5 away from the rubber roller 2, and a tool rod 6 adapted to the groove is provided. The groove 51 cooperates with the tool rod 6, so that the tool rod 6 and the plugging member 5 are circumferentially limited, so that the tool rod 6 is rotated to drive the plugging member to rotate relative to the through hole, that is, to tighten or loosen one end of the rubber roller. A slot 12 is provided on the base assembly of this embodiment, and the tool rod 6 is inserted into the slot 12. A handle 61 is provided at the other end of the tool rod, and the handle 61 is exposed from the slot 12 to facilitate the storage of the tool rod 6.

[0030] When the rubber roller needs to be replaced, the tool rod 6 is pulled out from the base assembly 1, the plugging member 5 is screwed out, and then the bearing 4 and the rubber roller 2 are taken out from the through hole 11, which is convenient for disassembly and assembly. It can be understood that the groove 51 and other fasteners on the base assembly can be set to the same groove type, such as hexagonal, and the corresponding end of the tool rod 6 is set to a hexagonal shape, so as to reduce the number of tools used when disassembling and assembling the equipment.

[0031] This embodiment also provides a printer, including the above-mentioned rubber roller quick-release structure, and also includes an upper cover assembly, on which a print head is arranged, and the rubber roller is installed on a side of the base assembly facing the upper cover assembly and is arranged tangent to the print head.

[0032] The above description shows and describes the preferred embodiments of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept of this article through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A rubber roller quick-release structure, comprising a base assembly and a rubber roller arranged on the base assembly, characterized in that: One end of the rubber roller is provided with a transmission shaft, a first matching portion is provided on the side of the transmission shaft facing the rubber roller, and a second matching portion is provided on the end corresponding to the rubber roller, and the first matching portion cooperates with the second matching portion so that the transmission shaft and the rubber roller are circumferentially limited; The other end of the rubber roller is provided with a bearing sleeved on the end of the rubber roller and a sealing member sleeved on the bearing. The sealing member is detachably connected to a through hole provided on the base assembly. The inner diameter of the through hole is larger than the maximum outer diameter of the rubber roller.

2. The quick-release structure of a rubber roller according to claim 1, characterized in that: The transmission shaft, the rubber roller, the bearing, and the blocking member are coaxially arranged, and the first matching portion and the second matching portion are coaxially arranged.

3. A rubber roller quick-release structure according to any one of claims 1 or 2, characterized in that: The first matching portion is an internal spline arranged on the transmission shaft, and the second matching portion is an external spline arranged on the end of the rubber roller and adapted to the internal spline.

4. A rubber roller quick-release structure according to any one of claims 1 or 2, characterized in that: The other end of the rubber roller is coaxially provided with a step, and the bearing sleeve is arranged at the end of the rubber roller and abuts against the step.

5. The rubber roller quick-release structure according to claim 1, characterized in that: The blocking member is connected to the through hole by threading or snap-fitting.

6. The quick-release structure of a rubber roller according to claim 1, characterized in that: A tool rod is also provided on the base assembly, and a groove is provided on the end surface of the blocking piece. The end of the tool rod is adapted to the groove, and the groove cooperates with the tool rod so that the tool rod and the blocking piece are circumferentially limited.

7. The quick-release structure of a rubber roller according to claim 6, characterized in that: The base assembly is provided with a slot, the tool rod is inserted into the slot, and the other end of the tool rod is provided with a handle, which is exposed from the slot.

8. A printer, characterized in that: It comprises the rubber roller quick-release structure as described in any one of claims 1 to 7.

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