Printer material roll restraining device

Through the design of the integrated card head and annular pad, the problem of misalignment and damage in the roll restraint device of the traditional printer is solved, and a more stable material rolling and retracting process is achieved.

CN223148050UActive Publication Date: 2025-07-25NEW CENTURY DIGITAL PRINT TECH
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Patent Information

Application Number
CN202422665981.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-01
Publication Date
2025-07-25
Estimated Expiration
2034-11-01

AI Technical Summary

Technical Problem

In traditional printer roll restraint devices, the plug head is prone to damage to the inner cylinder due to torsional force, and frequent slippery wire phenomenon.

Method used

It adopts an integrated clamp structure, combined with an annular pad and conical surface design, increases friction and torsion resistance, and is fixed by pinching bolts to avoid direct contact with the scratched roller.

Benefits of technology

The locking force of the inner cylinder and the feeding roller is improved, deformation and damage is reduced, and the stability and anti-slip effect of the feeding process are ensured.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a printer material roll restraining device. The printer material roll restraining device comprises a material receiving roller and two clamping heads arranged at the two transverse ends of the material receiving roller in a sleeving mode. The whole clamping head is in a ring sleeve shape, the clamping head is of an integrated structure, and the clamping head is in sliding fit with the material collecting roller; the end, close to the middle of the collecting roller, of each clamping head is the inner end, a conical surface is arranged on the outer circumferential face of each clamping head, the end, away from the middle of the collecting roller, of each clamping head is the outer end, at least one jacking screw hole is distributed in the circumferential direction, and the jacking screw holes face the axis from the outer circumferential faces of the clamping heads and penetrate through the side walls of the clamping heads to form penetrating holes. And a puller bolt is mounted in the puller screw hole. The printer material roll restraining device has the advantages that the locking force of the inner barrel and the material collecting roller is better, and the inner barrel is not prone to being damaged due to deformation.
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Description

Technical Field

[0001] The utility model relates to the technical field of printers, and more specifically, to a printer material roll restraint device. Background Art

[0002] In a printer, the material roll mainly includes a material receiving roll and a material feeding roll. Among them, during the material receiving process, a material receiving roller is used to wind the printing medium onto the material receiving roller by winding. During this process, the inner cylinder of the material roll needs to be locked with the material receiving roller to prevent slipping between the two, which affects the material receiving.

[0003] In the traditional solution, a plug is installed on the material receiving roller to tightly plug both ends of the inner cylinder to achieve the locking effect. Since the plug needs to be sleeved on the material receiving roller, for convenient installation, the plug is designed as a two-piece splicing structure and then fixed together by screws to form a conical plug as a whole.

[0004] However, in the actual use process of this structure, due to the large torsional force between the material receiving roller and the material roll, the two-piece plug often gets misaligned, ultimately scratching and damaging the inner cylinder and causing the thread to slip.

[0005] To solve the above problems, people have been seeking an ideal technical solution. Summary of the Utility Model

[0006] The purpose of the utility model is to address the deficiencies of the prior art, and thus provide a printer material roll restraint device with better locking force between the inner cylinder and the material receiving roller and not easily deformed to cause damage to the inner cylinder.

[0007] To achieve the above purpose, the technical solution adopted by the utility model is: a printer material roll restraint device, including a material receiving roller and two chucks sleeved on the two transverse ends of the material receiving roller;

[0008] The chuck is integrally in a ring sleeve shape, the chuck is of an integral structure, and the chuck is in sliding fit with the material receiving roller;

[0009] One end of the chuck close to the middle of the material receiving roller is the inner end and a conical surface is provided on the outer circumferential surface. One end of the chuck far from the middle of the material receiving roller is the outer end and at least one tightening screw hole is distributed along the circumferential direction. The tightening screw hole faces from the outer circumferential surface of the chuck towards the axis and penetrates the side wall of the chuck to form a through hole, and a tightening bolt is installed in the tightening screw hole.

[0010] Based on the above, it further includes an annular backing plate, and the annular backing plate is used to line between the chuck and the material receiving roller.

[0011] Based on the above, the annular backing plate is located between the outer end of the chuck and the material receiving roller.

[0012] Based on the above, the annular backing plate includes two semi-circular backing plates. The parts of the two semi-circular backing plates exposed outside the chuck end are provided with ears and connecting holes. The two semi-circular backing plates are locked and fixed on the receiving roller through the connecting holes of the ears and bolts.

[0013] Based on the above, the axial length of the conical surface of the chuck accounts for at least one-half of the entire axial length of the chuck.

[0014] Based on the above, anti-slip patterns are provided on the conical surface of the chuck.

[0015] Based on the above, it further includes a feeding roller group. The feeding roller group includes two horizontally laid feeding rollers. The supporting space between the two feeding rollers is used to store the material roll;

[0016] A chuck assembly is provided on one of the feeding rollers. The end of the chuck assembly close to the middle of the feeding roller is the inner end and is set as a plane. The plane itself or the plane surface is made of plastic material; the end of the chuck assembly far from the middle of the feeding roller is the outer end and at least one tightening screw hole is distributed along the circumferential direction. The orientation of the tightening screw hole is set from the outer peripheral surface of the chuck towards the axis and penetrates the side wall of the chuck to form a perforation. A tightening bolt is installed in the tightening screw hole.

[0017] Based on the above, the tightening bolt is a rubber-headed screw.

[0018] A printer material roll restraint device includes a feeding roller group and two chucks;

[0019] The feeding roller group includes two horizontally laid feeding rollers. The supporting space between the two feeding rollers is used to store the material roll;

[0020] The chuck is integrally in a ring sleeve shape. The chuck is an integral structure and is in sliding fit with the feeding roller;

[0021] The chuck is provided on one of the feeding rollers. The end of the chuck close to the middle of the feeding roller is the inner end and is set as a plane. The plane itself or the plane surface is made of plastic material; the end of the chuck far from the middle of the feeding roller is the outer end and at least one tightening screw hole is distributed along the circumferential direction. The orientation of the tightening screw hole is set from the outer peripheral surface of the chuck towards the axis and penetrates the side wall of the chuck to form a perforation. A tightening bolt is installed in the tightening screw hole.

[0022] Based on the above, the tightening bolt is a rubber-headed screw.

[0023] The utility model has substantial features and progress compared with the prior art. Specifically, the utility model improves the traditional two-piece structure into an integral structure, has a better anti-torsion effect, is not easily damaged due to the torsion between the inner cylinder and the receiving roller, and is not easily damaged by the inner cylinder or the receiving roller to cause thread slipping, ensuring the stability of the receiving process.

[0024] Further, an annular backing plate is added to increase the contact area, thereby increasing the friction force and improving the stability. At the same time, it also avoids the direct contact between the tightening bolt and the material receiving roller, protecting the material receiving roller from being scratched.

[0025] Further, anti-slip patterns are provided on the conical surface of the chuck to further enhance the anti-slip and anti-torsion effects.

[0026] Further, on the side of the material feeding roller, a chuck assembly is provided. Since the material feeding roll is movably placed in the supporting space between the two material feeding rollers and is prone to lateral movement, by providing the chuck assembly, the lateral movement of the material feeding roll can be effectively avoided. Description of the Drawings

[0027] Figure 1 It is a schematic structural view of the printer material roll restraint device in Embodiment 1 of the present utility model.

[0028] Figure 2 It is a partial structural view of the printer material roll restraint device in Embodiment 1 of the present utility model.

[0029] Figure 3 It is a partial internal structural view of the printer material roll restraint device in Embodiment 1 of the present utility model.

[0030] Figure 4 It is a schematic structural view of the printer material roll restraint device in Embodiment 2 of the present utility model.

[0031] In the figure: 1. Material receiving roller; 2. Chuck; 3. Annular backing plate; 4. Material feeding roller; 5. Chuck assembly; 21. Conical surface; 22. Tightening screw hole; 6. Existing chuck. Detailed Embodiments

[0032] The following further describes the technical solutions of the present utility model in detail through specific embodiments.

[0033] Embodiment 1

[0034] As Figures 1 - 3 shown, a printer material roll restraint device includes a material receiving roller 1 and two chucks 2 sleeved on the transverse ends of the material receiving roller.

[0035] The chuck 2 is integrally in a ring-shaped sleeve, and the chuck 2 is in sliding fit with the material receiving roller 1.

[0036] One end of the chuck 2 close to the middle of the material receiving roller 1 is the inner end, and a conical surface 21 is provided on the outer peripheral surface. The axial length of the conical surface of the chuck accounts for at least one-half of the axial length of the entire chuck.

[0037] One end of the chuck 2 far from the middle of the material receiving roller is the outer end and is distributed with at least one tightening screw hole 22 along the circumferential direction. The orientation of the tightening screw hole 22 is set from the outer peripheral surface of the chuck towards the axis and penetrates the side wall of the chuck to form a perforation. A tightening bolt is installed in the tightening screw hole.

[0038] Technical principle description:

[0039] The chuck 2 is directly sleeved on the material receiving roller 1 during the equipment assembly process in a pre-installed manner, eliminating the subsequent process of additional installation and disassembly. At the same time, the chuck 2 is designed as an integral structure with a conical surface 21, which can tighten the inner cylinder of the material receiving roll from both ends. The torsion force existing between the inner cylinder and the material receiving roller acts on the chuck 2 and is not likely to cause damage to the chuck 2, thus ensuring the effective supporting ability between the inner cylinder and the material receiving roller. Finally, the material roll can be constrained and is not likely to generate fatigue.

[0040] It further includes an annular backing plate 3, which is used to line between the chuck 2 and the material receiving roller 1. On the one hand, it is used to make the pressing relationship between the chuck 2 and the material receiving roller 1 more stable. On the other hand, it can make the inner end of the tightening bolt press on the annular backing plate 3 to avoid scratching the material receiving roller.

[0041] Specifically, in this embodiment, to avoid waste, the annular backing plate 3 is located between the outer end of the chuck 2 and the material receiving roller 1, and the annular gasket 3 acts on the outer locking area of the chuck 2.

[0042] For convenient installation, the annular backing plate 3 includes two semi-circular backing plates. The parts of the two semi-circular backing plates exposed outside the outer end of the chuck are provided with ears and connection holes, and the two semi-circular backing plates are locked and fixed to the material receiving roller through the connection holes of the ears and bolts.

[0043] To further improve the anti-slip effect, in a preferred embodiment, anti-slip patterns are provided on the conical surface of the chuck.

[0044] Embodiment 2

[0045] As Figure 4 shown, the difference between this embodiment and Embodiment 1 is that it further includes a material feeding roller group, which includes two horizontally laid material feeding rollers 4. The supporting space between the two material feeding rollers 4 is used to store the material roll;

[0046] A chuck assembly 5 is provided on one of the material feeding rollers 4. One end of the chuck assembly 5 close to the middle of the material feeding roller 4 is the inner end and is set as a plane. One end of the chuck assembly 5 far from the middle of the material feeding roller is the outer end and is distributed with at least one tightening screw hole 22 along the circumferential direction. The orientation of the tightening screw hole 22 is set from the outer peripheral surface of the chuck towards the axis and penetrates the side wall of the chuck to form a perforation. A tightening bolt is installed in the tightening screw hole. To prevent the inner end of the tightening bolt from scratching the surface of the material feeding roller 4, the tightening bolt uses a rubber head screw.

[0047] During the feeding process, the entire material roll is placed in the supporting space area between two feeding rollers 4. Through the movement of the feeding rollers 4 and other mechanisms, the material roll is driven to rotate and feed. During this process, since the force on the material roll is the pulling force from the feeding side, the pulling force is transmitted to the material roll through the printing medium, making it easy for the thread to shift, which in turn causes the axial movement of the feeding roller 4. To solve this problem, a chuck assembly 5 is added, and the chuck assembly 5 is used to prevent the entire material roll from moving axially.

[0048] Embodiment 3

[0049] The difference between this embodiment and Embodiment 2 is that it only includes improvements on the feeding side.

[0050] As Figure 4 shown, a printer material roll restraint device includes a feeding roller group and two chucks. The chuck in this embodiment, that is, the chuck assembly 5 described in Embodiment 2, refers to the same structure.

[0051] The feeding roller group includes two horizontally laid feeding rollers 4. The supporting space between the two feeding rollers 4 is used to store the material roll, and the feeding rollers 4 are usually steel rollers;

[0052] The chuck assembly 5 (chuck) is integrally in a ring shape. The chuck assembly 5 (chuck) is a one-piece structure and is in sliding fit with the feeding roller;

[0053] The chuck assembly 5 (chuck) is arranged on one of the feeding rollers. The end of the chuck assembly 5 (chuck) close to the middle of the feeding roller is the inner end and is set as a plane. The plane itself or the plane surface is made of plastic material to avoid scratching the printing medium. The end of the chuck assembly 5 (chuck) far from the middle of the feeding roller is the outer end and is distributed with at least one tightening screw hole along the circumferential direction. The orientation of the tightening screw hole is set from the outer peripheral surface of the chuck assembly 5 (chuck) towards the axis and penetrates the side wall of the chuck assembly 5 (chuck) to form a through hole. A tightening bolt is installed in the tightening screw hole, and the tightening bolt is a rubber-headed screw, which can prevent damage to the surface of the feeding roller 4.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: still modifications can be made to the specific embodiments of the present invention or equivalent replacements can be made to some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A printer material roll restraint device, characterized in that: It includes a material receiving roller and two chucks sleeved on the two transverse ends of the material receiving roller; The chuck is integrally in a ring sleeve shape, the chuck is an integral structure, and the chuck is in sliding fit with the material receiving roller; One end of the chuck close to the middle of the material receiving roller is the inner end and a conical surface is arranged on the outer peripheral surface. One end of the chuck far from the middle of the material receiving roller is the outer end and at least one tightening screw hole is distributed along the circumferential direction. The orientation of the tightening screw hole is set from the outer peripheral surface of the chuck towards the axis and penetrates the side wall of the chuck to form a perforation, and a tightening bolt is installed in the tightening screw hole.

2. The printer material roll restraint device according to claim 1, characterized in that: It further includes an annular backing plate, and the annular backing plate is used for padding between the chuck and the material receiving roller.

3. The printer material roll restraint device according to claim 2, characterized in that: The annular backing plate is located between the outer end of the chuck and the material receiving roller.

4. The printer material roll restraint device according to claim 3, characterized in that: The annular backing plate includes two semi-circular backing plates. Ears and connecting holes are arranged on the parts of the two semi-circular backing plates exposed outside the outer end of the chuck, and the two semi-circular backing plates are locked and fixed on the material receiving roller through the connecting holes of the ears and bolts.

5. The printer material roll restraint device according to any one of claims 1-4, characterized in that: The axial length of the conical surface of the chuck accounts for at least one-half of the axial length of the whole chuck.

6. The printer material roll restraint device according to any one of claims 1-4, characterized in that: Anti-slip lines are arranged on the conical surface of the chuck.

7. The printer material roll constraint device according to any one of claims 1-4, characterized in that: It further includes a material feeding roller group, and the material feeding roller group includes two horizontally laid material feeding rollers. The supporting space between the two material feeding rollers is used for storing material coils; A pair of chuck assemblies are arranged on one of the material feeding rollers. One end of the chuck assembly close to the middle of the material feeding roller is the inner end and is set as a plane, and the plane itself or the plane surface is set as a plastic material. One end of the chuck assembly far from the middle of the material feeding roller is the outer end and at least one tightening screw hole is distributed along the circumferential direction. The orientation of the tightening screw hole is set from the outer peripheral surface of the chuck towards the axis and penetrates the side wall of the chuck to form a perforation, and a tightening bolt is installed in the tightening screw hole.

8. The printer material roll restraint device according to claim 7, wherein: The tightening bolt is a rubber head screw.

9. A printer material roll restraint device, characterized in that: It includes a material feeding roller group and two chucks; The material feeding roller group includes two horizontally laid material feeding rollers. The supporting space between the two material feeding rollers is used for storing material coils; The chuck is integrally in a ring sleeve shape, the chuck is an integral structure, and the chuck is in sliding fit with the material feeding roller; The chuck is arranged on one of the material feeding rollers. One end of the chuck close to the middle of the material feeding roller is the inner end and is set as a plane, and the plane itself or the plane surface is set as a plastic material. One end of the chuck far from the middle of the material feeding roller is the outer end and at least one tightening screw hole is distributed along the circumferential direction. The orientation of the tightening screw hole is set from the outer peripheral surface of the chuck towards the axis and penetrates the side wall of the chuck to form a perforation, and a tightening bolt is installed in the tightening screw hole.

10. The printer material roll constraint device according to claim 9, characterized in that: The tightening bolt is a rubber head screw.