Paper separating wheel fixing structure

Abstract

The utility model discloses a paper separating wheel fixing structure, including fixed part and the first fixed end and second fixed end of being placed in the both ends of fixed part, the both ends of paper separating wheel are connected with first fixed end and second fixed end respectively for paper separating wheel limit, and second fixed end contains support part, mounting and first limit piece, and mounting is located support part side and can detachably connect first limit piece, and support part, mounting and first limit piece jointly enclose the mounting space for installing paper separating wheel, and the side of first limit piece facing mounting is arc surface, the utility model discloses through first limit fastening, can loose and install in place, avoid the damage of component caused by interference fit in the installation process, guarantee the use effect of paper separating wheel, can guarantee paper separating wheel installation's high coaxial degree and high fastening simultaneously, guarantee the stability and reliability in the operation process of paper separating wheel, prolong the service life of paper separating wheel.

Description

Technical Field

[0001] This utility model relates to the technical field of printers, and in particular to a paper separating roller fixing structure. Background Technology

[0002] In the printer OA consumables industry, the paper separating roller plays a crucial role in ensuring that each sheet of paper enters the equipment's workflow accurately. The key indicator affecting the effectiveness of the paper separating roller lies in the smoothness of its circumferential movement after installation in the machine: this is mainly achieved through high coaxiality and tightness. Therefore, the proper installation of the paper separating roller directly affects the quality of the product.

[0003] Traditionally, the paper-separating roller is installed in the support frame using an interference fit. The arc-shaped structure of the shaft is installed at one end of the support frame, and the circular structure at the other end. The installation relies on the mating structure and length-locking mechanism on the other end of the support frame. This method has the following drawbacks: ① Low coaxiality: The upper and lower limiters on the mating structure are elastic protrusions installed at the end of the paper-separating roller, affecting the smoothness of its circumferential movement during operation. ② Poor fastening: The upper and lower limiters on the mating structure are elastic protrusions installed at the end of the paper-separating roller, causing the roller to swing up and down during operation on some high-speed machines, potentially leading to paper jams. ③ Damage to the support frame: The interference fit method can damage the support frame if not handled properly. Therefore, a structure is needed that ensures both easy and flexible disassembly and installation, while also guaranteeing high coaxiality and high fastening. Utility Model Content

[0004] The purpose of this utility model is to provide a paper-separating wheel fixing structure, which solves the problem that the installation of the paper-separating wheel in the prior art affects the performance and service life of the paper-separating wheel.

[0005] This utility model is implemented as follows: a paper-splitting wheel fixing structure includes a fixing part and a first fixing end and a second fixing end placed at both ends of the fixing part. The two ends of the paper-splitting wheel are respectively connected to the first fixing end and the second fixing end for limiting the paper-splitting wheel. The second fixing end includes a support part, a mounting part, and a first limiting part. The mounting part is located on the side of the support part and is detachably connected to the first limiting part. The support part, the mounting part, and the first limiting part together form an installation space for installing the paper-splitting wheel. The side of the first limiting part facing the installation space is an arc-shaped surface.

[0006] First, one end of the arc-shaped structure of the paper-splitting wheel shaft is installed on the first fixed end, and then one end of the circular structure of the paper-splitting wheel shaft is installed on the second fixed end, thus completing the fixing of the paper-splitting wheel. When connecting one end of the circular structure of the paper-splitting wheel to the second fixed end, firstly, one end of the circular structure of the paper-splitting wheel is brought into contact with the support part, and then the first limiting member is inserted into the mounting part from the side of the paper-splitting wheel. At this time, the arc-shaped surface of the first limiting member fits against the outer circumference of the shaft of the paper-splitting wheel, thereby achieving circumferential limiting of the paper-splitting wheel. This utility model first ensures that the paper-splitting wheel can be loosely installed in place, and then is tightened by the first limiting member, avoiding damage caused by interference fit during installation and ensuring the performance of the paper-splitting wheel. At the same time, it can ensure high coaxiality and high tightness of the paper-splitting wheel installation, ensure the stability and reliability of the paper-splitting wheel during operation, and extend the service life of the paper-splitting wheel.

[0007] A further technical solution of this utility model is: the mounting component is placed on both sides of the support portion, and the mounting component is snapped together with the first limiting component.

[0008] The mounting components are placed on both sides of the support to further limit the paper separating rollers. In conjunction with the first limiting component and the mounting component, they are snapped together, which makes the paper separating rollers well installed and more coaxial. Moreover, the snap-on connection makes it easy to install and disassemble.

[0009] A further technical solution of this utility model is: the first limiting member is arched and has grooves on the inner sides of both ends, and a snap-fit ​​part is formed between the grooves and the ends of the first limiting member, and the inner wall of the snap-fit ​​part is inclined.

[0010] The arched first limiting component has an aesthetically pleasing structure and makes reasonable use of space. The groove and snap-fit ​​part of the first limiting component can form a double snap-fit ​​with the mounting part, making the installation more stable and the tightness further enhanced. Moreover, the inner wall of the snap-fit ​​part is sloping, which makes it easy to install and engage with the snap-fit.

[0011] A further technical solution of this utility model is: the mounting component is provided with a slot that cooperates with the snap-fit ​​part.

[0012] When the first limiting member is connected to the mounting member, the snap-fit ​​part of the first limiting member snaps into the slot, and the groove of the first limiting member snaps into the outer periphery of the slot of the mounting member, thus completing a highly secure connection between the first limiting member and the mounting member.

[0013] A further technical solution of this utility model is: the two ends of the first limiting member are deformable for connection with the card slot.

[0014] The two ends of the first limiting member and the mounting member are connected by a snap-fit. After deformation, they are snapped into the slot and then reset. The first limiting member and the mounting member are connected. After the first limiting member is connected to the mounting member, it is not easy to deform and has good fastening to the paper separating wheel.

[0015] A further technical solution of this utility model is: the side of the support facing the installation space is a plane, the mounting parts are vertically arranged on both sides of the plane of the support, and the first limiting member is detachably installed between the mounting parts.

[0016] The paper separating roller first contacts the plane of the support part to support the paper separating roller. The paper separating roller is further limited by the mounting part. After the paper separating roller is loosely installed in place, it is then connected to the mounting part through the first limiting part to achieve fastening, so as to avoid damage caused by interference fit during installation.

[0017] A further technical solution of this utility model is: the second fixed end also includes a second limiting plate at the end, and the second limiting plate has a protrusion on the side facing the installation space for limiting the horizontal direction of the paper separating wheel.

[0018] The paper separating roller needs to have 10-20 micrometers of movement in the horizontal direction, and the installation of the paper separating roller also needs to be considered. Using a protrusion for limiting can well meet the above requirements. Not only is the contact surface relatively small, leaving a certain amount of movement, but it also facilitates the quick installation of the paper separating roller.

[0019] A further technical solution of this utility model is: the first fixed end includes a first limiting plate, the first limiting plate is provided with a limiting hole that cooperates with the end of the paper separating wheel, and a protrusion for limiting the horizontal direction of the paper separating wheel is provided on the outside of the limiting hole.

[0020] One end of the paper separating wheel's arc-shaped structure is inserted into a limiting hole, and at the same time, the protrusion at the end achieves the horizontal limitation of the paper separating wheel.

[0021] The beneficial effects of this utility model are as follows: First, one end of the arc-shaped structure of the paper-separating wheel shaft is installed at the first fixed end, and then one end of the circular structure of the paper-separating wheel shaft is installed at the second fixed end, thus completing the fixing of the paper-separating wheel; when connecting one end of the circular structure of the paper-separating wheel to the second fixed end, firstly, one end of the circular structure of the paper-separating wheel is brought into contact with the support part, and then the first limiting member is inserted into the mounting part from the side of the paper-separating wheel. At this time, the arc-shaped surface of the first limiting member fits against the outer circumference of the shaft of the paper-separating wheel, thereby achieving circumferential limiting of the paper-separating wheel; this utility model first ensures that the paper-separating wheel can be loosely installed in place, and then is tightened by the first limiting member, avoiding damage caused by interference fit during installation and ensuring the performance of the paper-separating wheel; at the same time, it can ensure high coaxiality and high tightness of the paper-separating wheel installation, ensure the stability and reliability of the paper-separating wheel during operation, and extend the service life of the paper-separating wheel.

[0022] This invention ensures high coaxiality and stability of the paper-separating roller after installation, achieving fixation of the paper-separating roller within the fixed structure. First, the arc-shaped end of the paper-separating roller shaft mates with the limiting hole of the fixed structure. Second, the circular end of the paper-separating roller shaft mates with the support part of the fixed structure. Finally, the first limiting component is snapped into the slot of the mounting component, thus achieving installation of the paper-separating roller on the fixed structure. The snap-fit ​​installation of the first limiting component and the mounting component ensures the paper-separating roller's secure fastness to the fixed structure, guarantees high coaxiality, and allows for flexible and convenient disassembly and installation, reducing damage to the support structure caused by installation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the paper-sliding wheel fixing structure and the paper-sliding wheel after assembly, provided by this utility model;

[0024] Figure 2 This utility model provides Figure 1 Exploded view;

[0025] Figure 3 This is a schematic diagram of a paper-separating wheel fixing structure provided by this utility model;

[0026] Figure 4 This is a schematic diagram of the paper separating wheel provided by this utility model;

[0027] Figure 5 This is a structural schematic diagram of the first limiting member provided by this utility model.

[0028] Reference numerals: 1. Paper separating roller, 11. Arched end, 12. Circular end.

[0029] 2. First fixed end; 21. First limiting plate; 211. Protrusion; 22. Limiting hole;

[0030] 3. Second fixed end; 31. Support part; 32. Mounting part; 321. Slot; 33. First limiting part; 331. Groove; 332. Snap-fit ​​part; 333. Inclined surface; 34. Second limiting plate; 341. Protrusion.

[0031] 5. Fixing part. Detailed Implementation

[0032] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0033] Example 1:

[0034] Figure 1-5 A paper-separating wheel fixing structure is shown, including a fixing part 5 and a first fixing end 2 and a second fixing end 3 located at both ends of the fixing part 5. The two ends of the paper-separating wheel 1 are respectively connected to the first fixing end 2 and the second fixing end 3 for limiting the paper-separating wheel 1. The second fixing end 3 includes a support part 31, a mounting part 32 and a first limiting part 33. The mounting part 32 is located on the side of the support part 31 and is detachably connected to the first limiting part 33. The support part 31, the mounting part 32 and the first limiting part 33 together form an installation space for installing the paper-separating wheel 1. The side of the first limiting part 33 facing the installation space is an arc-shaped surface.

[0035] In this embodiment, the mounting member 32 is placed on both sides of the support portion 31, and the mounting member 32 is snapped together with the first limiting member 33.

[0036] The mounting components are placed on both sides of the support to further limit the paper separating rollers. In conjunction with the first limiting component and the mounting component, they are snapped together, which makes the paper separating rollers well installed and more coaxial. Moreover, the snap-on connection makes it easy to install and disassemble.

[0037] In this embodiment, the distance between the mounting components is equal to the diameter of the paper separating wheel shaft.

[0038] In this embodiment, the first limiting member 33 is arched and has grooves 331 on the inner sides of both ends. A snap-fit ​​portion 332 is formed between the grooves 331 and the ends of the first limiting member 33. The inner wall of the snap-fit ​​portion 332 is a slope 333.

[0039] The arched first limiting component has an aesthetically pleasing structure and makes reasonable use of space. The groove and snap-fit ​​part of the first limiting component can form a double snap-fit ​​with the mounting part, making the installation more stable and the tightness further enhanced. Moreover, the inner wall of the snap-fit ​​part is sloping, which makes it easy to install and engage with the snap-fit.

[0040] In this embodiment, the mounting component 32 is provided with a slot 321 that mates with the snap-fit ​​portion 332.

[0041] When the first limiting member is connected to the mounting member, the snap-fit ​​part of the first limiting member snaps into the slot, and the groove of the first limiting member snaps into the outer periphery of the slot of the mounting member, thus completing a highly secure connection between the first limiting member and the mounting member.

[0042] In this embodiment, the two ends of the first limiting member 33 are deformable for snap-fit ​​connection with the slot 321.

[0043] The two ends of the first limiting member and the mounting member are connected by a snap-fit. After deformation, they are snapped into the slot and then reset. The first limiting member and the mounting member are connected. After the first limiting member is connected to the mounting member, it is not easy to deform and has good fastening to the paper separating wheel.

[0044] In this embodiment, the side of the support portion 31 facing the installation space is a plane, the mounting member 32 is vertically arranged on both sides of the plane of the support portion 31, and the first limiting member 33 is detachably installed between the mounting members 32.

[0045] The paper separating roller first contacts the plane of the support part to support the paper separating roller. The paper separating roller is further limited by the mounting part. After the paper separating roller is loosely installed in place, it is then connected to the mounting part through the first limiting part to achieve fastening, so as to avoid damage caused by interference fit during installation.

[0046] In this embodiment, the second fixed end 3 also includes a second limiting plate 34 at the end, and the second limiting plate 34 is provided with a protrusion 341 for limiting the horizontal direction of the paper separating wheel 1 on the side facing the installation space.

[0047] The paper separating roller needs to have 10-20 micrometers of movement in the horizontal direction, and the installation of the paper separating roller also needs to be considered. Using a protrusion for limiting can well meet the above requirements. The contact surface is relatively small, leaving a certain amount of movement, and it is convenient to quickly install the paper separating roller.

[0048] In this embodiment, the first fixed end 2 includes a first limiting plate 21. The first limiting plate 21 is provided with a limiting hole 22 that cooperates with the end of the paper separating wheel 1. The outer side of the limiting hole 22 is provided with a protrusion 211 for limiting the horizontal direction of the paper separating wheel 1.

[0049] The paper separating roller 1's arc-shaped end 11 engages with the limiting hole 22, and simultaneously works with the protrusion at the end to limit the paper separating roller in the horizontal direction.

[0050] In this embodiment, the arc-shaped end 11 of the paper separating wheel 1 is inserted into the first limiting plate 21 and limited by the protrusion 211. The circular end 12 of the paper separating wheel 1 is inserted between the support part 31 and the mounting part 32. After adjustment, the first limiting part 33 is inserted into the mounting part 32 to realize the all-round limitation of the paper separating wheel 1, ensuring high coaxiality of the paper separating wheel 1 and no wear caused by interference fit, thus extending the service life of the paper separating wheel.

[0051] By utilizing a snap-fit ​​structure and designing the snap-fit ​​itself, high coaxiality, high tightness, and assembly flexibility are achieved when the paper separating roller is installed on the bracket, thereby improving the stability and quality of the paper separating roller's operation.

[0052] This utility model discloses a paper-separating wheel fixing structure. ① The shaft core is fixed in the same way as in traditional methods, with an arc-shaped structure installed at one end of the bracket and a circular structure installed at the other end. ② A first limiting member is installed in the slot of the mounting component, with the inner side of the first limiting member being an arc structure to ensure high coaxiality after the paper-separating wheel is installed. ③ The snap-fit ​​portion on the first limiting member engages with the slot of the mounting component, ensuring high tightness of the paper-separating wheel installation. ④ This separate-fitting method allows the paper-separating wheel to be loosely installed before being tightened by the first limiting member, avoiding damage caused by interference fit during installation. This method improves the coaxiality and tightness of the paper-separating wheel during use, prevents damage caused by installation, and enhances the overall quality of the paper-separating wheel during operation.

[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A paper-separating wheel fixing structure, comprising a fixing part (5) and a first fixing end (2) and a second fixing end (3) disposed at both ends of the fixing part (5), wherein both ends of the paper-separating wheel (1) are respectively connected to the first fixing end (2) and the second fixing end (3) for limiting the paper-separating wheel (1), characterized in that: The second fixed end (3) includes a support (31), a mounting part (32) and a first limiting part (33). The mounting part (32) is located on the side of the support (31) and is detachably connected to the first limiting part (33). The support (31), the mounting part (32) and the first limiting part (33) together form an installation space for installing the paper separating wheel (1). The side of the first limiting part (33) facing the installation space is an arc-shaped surface.

2. The paper separating roller fixing structure according to claim 1, characterized in that: The mounting component (32) is placed on both sides of the support (31), and the mounting component (32) is snapped together with the first limiting component (33).

3. The paper separating roller fixing structure according to claim 2, characterized in that: The first limiting member (33) is arched and has grooves (331) on the inner sides of both ends. A snap-fit ​​part (332) is formed between the groove (331) and the end of the first limiting member (33). The inner wall of the snap-fit ​​part (332) is a slope (333).

4. The paper separating roller fixing structure according to claim 3, characterized in that: The mounting component (32) is provided with a slot (321) that mates with the snap-fit ​​part (332).

5. The paper separating roller fixing structure according to claim 4, characterized in that: The first limiting member (33) has deformable ends for snap-fit ​​connection with the slot (321).

6. A paper-separating roller fixing structure according to any one of claims 1-5, characterized in that: The side of the support (31) facing the installation space is a plane, and the mounting parts (32) are vertically arranged on both sides of the plane of the support (31). The first limiting member (33) is detachably installed between the mounting parts (32).

7. A paper-separating roller fixing structure according to any one of claims 1-5, characterized in that: The second fixed end (3) also includes a second limiting plate (34) at the end, and the second limiting plate (34) has a protrusion (341) on the side facing the installation space for limiting the horizontal direction of the paper separating wheel (1).

8. A paper-separating roller fixing structure according to any one of claims 1-5, characterized in that: The first fixed end (2) includes a first limiting plate (21), and the first limiting plate (21) is provided with a limiting hole (22) that cooperates with the end of the paper separating wheel (1). The outer side of the limiting hole (22) is provided with a protrusion (211) for limiting the paper separating wheel (1) in the horizontal direction.

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