Printer roll shaft with anti-blocking function

Abstract

The utility model relates to the technical field of printers, in particular to a printer roll shaft with an anti-blocking function, which comprises a rotating shaft, a plurality of spring grooves are arranged on the outer surface of the rotating shaft, a spring is fixedly connected to the rear side surface of each spring groove, the other end of each spring is fixedly connected with a fixed disc, and a bayonet lock is fixedly connected to the rear side surface of the fixed disc. The outer surface of the rotating shaft is sleeved with a first buffer layer, the outer surface of the first buffer layer is fixedly connected with a connecting ring, the outer surface of the connecting ring is fixedly connected with an extrusion layer, the outer surface of the first buffer layer is fixedly connected with a second buffer layer, and a clamping groove is formed in the front side face of the second buffer layer. The anti-blocking roll shaft is reasonable in structure, the spring can be stretched, the length of the roll shaft can be changed, the anti-blocking roll shaft can be used according to roll shafts with different lengths, and meanwhile the fixing disc and the sealing ring are matched to achieve a good anti-blocking function.

Description

Technical Field

[0001] The utility model relates to the field of printers, in particular to a printer roller shaft with an anti-blocking function. Background Art

[0002] The printer shaft roller is an important component in a printer and is widely used in various transmission and conveying systems. It is usually a cylindrical part, divided into a driving roller and a driven roller, mainly made of seamless steel pipes or other materials, produced through multiple processes and may be surface-treated or coated to meet specific requirements.

[0003] In the existing printer shaft roller, lint is likely to penetrate into the interior, resulting in blockage of the shaft roller. At the same time, the length of the printer shaft roller is fixed and cannot be adjusted, making the applicable range of the printer smaller. When the shaft roller needs to be replaced, only shaft rollers of a fixed specification can be selected. If the wrong one is bought, it needs to be replaced, which is very inconvenient. Summary of the Invention

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a printer roller shaft with an anti-blocking function is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A printer roller shaft with an anti-blocking function, including a rotating shaft. A plurality of spring grooves are provided on the outer surface of the rotating shaft. A spring is fixedly connected to the rear side surface of the spring groove. The other end of the spring is fixedly connected to a fixed disk. A retaining pin is fixedly connected to the rear side surface of the fixed disk. A first buffer layer is sleeved on the outer surface of the rotating shaft. A connecting ring is fixedly connected to the outer surface of the first buffer layer. An extrusion layer is fixedly connected to the outer surface of the connecting ring. A second buffer layer is fixedly connected to the outer surface of the first buffer layer. A card slot is provided on the front side surface of the second buffer layer.

[0006] As a further description of the above technical solution:

[0007] The fixed disk is located inside the spring groove, and the retaining pin is located inside the card slot.

[0008] As a further description of the above technical solution:

[0009] A plurality of convex rings are fixedly connected to the rear side surface of the rotating shaft.

[0010] As a further description of the above technical solution:

[0011] A printer inner wall is provided at the rear side of the convex ring. A limiting frame is fixedly connected to the front side surface of the printer inner wall. The convex ring is located inside the limiting frame. A limiting slot is provided on the rear side surface of the printer inner wall.

[0012] As a further description of the above technical solution:

[0013] A sealing groove is provided on the rear side of the second buffer layer, and a sealing ring is arranged inside the sealing groove.

[0014] As a further description of the above technical solution:

[0015] The number of the pin and the card slot is four each.

[0016] As a further description of the above technical solution:

[0017] The number of the second buffer layers is two.

[0018] The utility model has the following beneficial effects:

[0019] Compared with the prior art, for the printer roller shaft with a clogging prevention function, through the pin, the card slot, the extrusion layer, the pin, the rotating shaft, the limiting frame, the spring, the fixed disk and the first buffer layer, during installation, first align the pin with the card slot, then move the extrusion layer along the direction of the pin, and then the pin enters the inside of the card slot. Perform the same operation to insert the other pin into the inside of the card slot, and then place the two rotating shafts along the limiting frame. At this time, the rotating shafts are fixed. At the same time, since the spring is stretched, the fixed disk fixes the first buffer layer, and then fixes the roller shaft. At the same time, the sealing ring can prevent the fabric wool balls from easily entering the inside of the roller shaft. Compared with the existing printer shaft roller where the wool balls are likely to penetrate into the inside and cause the shaft roller to be clogged, and the length of the printer shaft roller is fixed and cannot be adjusted, making the applicable range of the printer smaller. When the shaft roller needs to be replaced, often only the shaft roller of a fixed specification can be selected. If it is bought wrong, it needs to be replaced, which is very inconvenient. The spring of the printer roller shaft with a clogging prevention function can be stretched, so that the length of the roller shaft can be changed, and then it can be used for roller shafts of different lengths. At the same time, the cooperation of the fixed disk and the sealing ring can achieve a good clogging prevention function. Description of the Drawings

[0020] Figure 1 is the overall structural schematic diagram of the utility model;

[0021] Figure 2 is the overall structural sectional view of the utility model;

[0022] Figure 3 is Figure 2 the enlarged structural view at A in

[0023] Figure 4 is the partial structural schematic diagram of the utility model;

[0024] Figure 5 is the structural diagram of the fixed disk of the utility model.

[0025] Legend Explanation:

[0026] 1. Rotating shaft; 2. Spring groove; 3. Spring; 4. Fixed disk; 5. Pin; 6. First buffer layer; 7. Connecting ring; 8. Extrusion layer; 9. Second buffer layer; 10. Card slot; 11. Inner wall of printer; 12. Limit frame; 13. Convex ring; 14. Limit slot; 15. Sealing ring; 16. Sealing groove. Specific implementation manner

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] Refer to Figures 1-5 , a printer roller shaft with an anti-blocking function provided by the present utility model: including a rotating shaft 1, a spring groove 2 is provided on the outer surface of the rotating shaft 1, the spring groove 2 provides an installation position for the spring 3, the number of the spring grooves 2 is multiple, the rear side of the spring groove 2 is fixedly connected with the spring 3, the other end of the spring 3 is fixedly connected with a fixed disk 4, the rear side of the fixed disk 4 is fixedly connected with a pin 5, the pin 5 can play a limiting role on the fixed disk 4 after being inserted into the card slot 10, and the number of the pins 5 is four; a first buffer layer 6 is sleeved on the outer surface of the rotating shaft 1, the material of the first buffer layer 6 is EPS foam board, a connecting ring 7 is fixedly connected to the outer surface of the first buffer layer 6, an extrusion layer 8 is fixedly connected to the outer surface of the connecting ring 7, the material of the extrusion layer 8 is polyurethane (PU) rubber, which can effectively resist extrusion and maintain a long service life during use, a second buffer layer 9 is fixedly connected to the outer surface of the first buffer layer 6, the material of the second buffer layer 9 is EPE pearl cotton, both the first buffer layer 6 and the second buffer layer 9 can reduce the pressure of the extrusion layer 8 on the rotating shaft 1 during the operation of the roller shaft, the number of the second buffer layers 9 is two, and a card slot 10 is provided on the front side of the second buffer layer 9, and the number of the card slots 10 is four.

[0029] During installation, first align the pin 5 with the card slot 10, then move the extrusion layer 8 along the direction of the pin 5, and then the pin 5 enters the inside of the card slot 10. Perform the same operation to insert the other pin 5 into the inside of the card slot 10, and then place the two rotating shafts 1 along the limit frame 12. At this time, the rotating shafts 1 are fixed, and at the same time, since the spring 3 is stretched, the fixed disk 4 fixes the first buffer layer 6.

[0030] As Figure 2As shown in the figure, the fixed disk 4 is located inside the spring groove 2, the pin 5 is located inside the clamping groove 10, the rear surface of the rotating shaft 1 is fixedly connected with a convex ring 13, and the convex ring 13 can be clamped in the limiting frame 12. The number of the convex rings 13 is multiple. There is a printer inner wall 11 behind the convex ring 13. The front side surface of the printer inner wall 11 is fixedly connected with the limiting frame 12. The limiting frame 12 is responsible for providing limitation for the convex ring 13. The convex ring 13 is located inside the limiting frame 12. A limiting groove 14 is opened on the rear side surface of the printer inner wall 11, and the output end of an external motor can be connected to the limiting groove 14. A sealing groove 16 is opened on the rear side surface of the second buffer layer 9, and a sealing ring 15 is arranged inside the sealing groove 16. The sealing ring 15 can prevent the fabric wool ball from easily entering the roller shaft.

[0031] It should be noted that the roller shaft is first installed on the rotating shaft 1 and then placed into the limiting frame 12. Even if the spring groove 2 enters the wool ball during subsequent work, it does not affect the operation of the roller shaft. At the same time, since the rotation of the roller shaft is slow, the spring 3 will not shift.

[0032] The working principle of the present utility model:

[0033] During installation, first align the pin 5 with the clamping groove 10, and then move the extrusion layer 8 along the direction of the pin 5, so that the pin 5 enters the inside of the clamping groove 10. Perform the same operation to insert the other pin 5 into the inside of the clamping groove 10, and then place the two rotating shafts 1 along the limiting frame 12. At this time, the rotating shafts 1 are fixed. At the same time, since the spring 3 is stretched, the fixed disk 4 fixes the first buffer layer 6, making it difficult for the fabric wool ball to enter the gap between the roller shaft and the rotating shaft 1. At the same time, the sealing ring 15 can prevent the fabric wool ball on the outer surface of the roller shaft from easily falling into the gap, making it difficult for the roller shaft to be blocked, which is beneficial to the use of the roller shaft. The spring 3 can be stretched, so that the length of the roller shaft can be changed, and thus the roller shaft with different lengths can be used. At the same time, the cooperation between the fixed disk 4 and the sealing ring 15 can achieve a good anti-blocking function.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A printer roller with anti-blocking function, comprising a rotating shaft (1), characterized in that: The outer surface of the rotating shaft (1) is provided with a plurality of spring grooves (2); a spring (3) is fixedly connected to the rear side of the spring groove (2); a fixing plate (4) is fixedly connected to the other end of the spring (3); a locking pin (5) is fixedly connected to the rear side of the fixing plate (4); a first buffer layer (6) is sleeved on the outer surface of the rotating shaft (1); a connecting ring (7) is fixedly connected to the outer surface of the first buffer layer (6); an extrusion layer (8) is fixedly connected to the outer surface of the connecting ring (7); a second buffer layer (9) is fixedly connected to the outer surface of the first buffer layer (6); and a locking groove (10) is provided on the front side of the second buffer layer (9).

2. A printer roller with anti-blocking function according to claim 1, characterized in that: The fixing plate (4) is located inside the spring slot (2), and the latch (5) is located inside the latch slot (10).

3. The printer roller with anti-blocking function according to claim 1, characterized in that: A plurality of convex rings (13) are fixedly connected to the rear surface of the rotating shaft (1).

4. A printer roller with anti-blocking function according to claim 3, characterized in that: A printer inner wall (11) is arranged on the rear side of the convex ring (13); the front side of the printer inner wall (11) is fixedly connected to a limit frame (12); the convex ring (13) is located inside the limit frame (12); and a limit groove (14) is provided on the rear side of the printer inner wall (11).

5. The printer roller with anti-blocking function according to claim 1, characterized in that: A sealing groove (16) is provided on the rear side surface of the second buffer layer (9), and a sealing ring (15) is provided inside the sealing groove (16).

6. The printer roller with anti-blocking function according to claim 1, characterized in that: The number of the latch pins (5) and the number of the latch slots (10) are both four.

7. The printer roller with anti-blocking function according to claim 1, characterized in that: The number of the second buffer layers (9) is two.

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