Rapid rubber covered roller replacing structure of carton processing machine

By setting a magnet-changing mechanism and an elastic anti-loosening mechanism at the rubber roller shaft, the problem of unstable connection of the permanent magnet of the rubber roller under vibration and temperature difference is solved, realizing the convenience and stability of the quick roller changing structure of the rubber roller and improving the working efficiency of the box gluing machine.

CN224183882UActive Publication Date: 2026-05-01TIANJIN YONGLIQI PAPER MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN YONGLIQI PAPER MASCH CO LTD
Filing Date
2025-05-19
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

In the prior art, the magnetism of the permanent magnet at the end of the rubber roller shaft decreases under vibration or temperature changes, resulting in unstable connection and difficulty in disassembly. This affects the maintenance convenience of the quick roller change structure and can easily lead to the scrapping of the entire roller.

Method used

A magnet-changing mechanism is installed at the roller shaft of the rubber roller body. It adopts a detachable magnet design and an elastic anti-loosening mechanism. Through the cooperation of a single-pin screw and an elastic support, the permanent magnet can be quickly disassembled and securely connected to prevent loosening.

Benefits of technology

This design achieves the convenience and stability of a quick roller change structure for rubber rollers, avoids the scrapping of the entire roller due to reduced magnetism, and ensures the efficient operation of the box gluing machine.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a paper box processing machinery rubber covered roller quick changing structure which comprises a rubber covered roller body, roller shafts are integrally formed at the two ends of the rubber covered roller body, the paper box processing machinery rubber covered roller quick changing structure further comprises a magnet changing mechanism, and the magnet changing mechanism comprises a disc fixing groove, a magnet disc, a tongue fixing groove, a magnetic tongue portion and an elastic supporting piece. The magnet replacing mechanism solves the problem that a permanent magnet of a traditional magnetic adsorption rubber roller is difficult to replace through detachable magnet design and an elastic anti-loosening mechanism, on one hand, a magnet disc and a magnetic tongue part can be rapidly detached by destroying a rubber layer in a semicircular rubber groove, and the permanent magnet replacing time is shortened in cooperation with instrumentalized operation of a linear rotating bolt; the rapid roller replacing structure of the rubber roller body is convenient to use and maintain, the situation that the whole roller is scrapped after the magnetism of the permanent magnets of the rubber roller body of the rapid roller replacing structure of the carton pasting machine is reduced is avoided, and stable use of the rapid roller replacing structure of the rubber roller of the carton processing machine is guaranteed.
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Description

A quick roller changing structure for rubber rollers in carton processing machinery Technical Field

[0001] This utility model relates to the field of cardboard box processing machinery technology, and in particular to a quick roller changing structure for cardboard box processing machinery. Background Technology

[0002] In the carton manufacturing process, a gluing machine is typically used to process printed and die-cut carton blanks. This machine is a post-production processing device used to fold, glue, and bond the printed and die-cut carton blanks to form a complete carton. The efficiency of the gluing machine directly affects the progress of the entire production process. If the glue rollers malfunction, such as wear or hardened glue residue, and are not replaced promptly, uneven glue application will occur, affecting the bonding quality of the carton. The Mitsubishi Heavy Industries MC-800 gluing machine in Japan employs magnetic adsorption glue roller connection technology to meet the need for rapid roller replacement. This technology embeds permanent magnets at the ends of the glue roller shafts and uses magnetically conductive components at the drive shaft end for adsorption.

[0003] Existing carton gluing machines use permanent magnets with interference fits on the ends of the glue rollers to meet their magnetic adsorption-based quick replacement requirements. However, when these embedded permanent magnets are subjected to vibration or temperature changes that reduce their magnetism, it affects the stability of the glue roller connection. Furthermore, the embedded permanent magnets are not easy to disassemble, making the quick roller replacement structure inconvenient to use and maintain, and easily leading to the problem of scrapping and replacing the entire roller. To address this, we propose a quick roller replacement structure for carton processing machinery. Summary of the Invention

[0004] The main objective of this invention is to provide a quick-change roller structure for carton processing machinery. By setting a magnet-changing mechanism at the roller shaft of the roller body, the magnet-changing mechanism solves the problem of difficult replacement of permanent magnets in traditional magnetic adsorption rollers through a detachable magnet design and an elastic anti-loosening mechanism. On the one hand, the magnet disk and magnetic tongue can be quickly disassembled by breaking the glue layer in the semi-circular glue groove. Combined with the tool-based operation of the screw bolt, the replacement time of the permanent magnet is shortened, making the quick-change roller structure of the roller body convenient to use and maintain. This avoids the complete scrapping of the roller body of the quick-change roller structure of the carton gluing machine after the permanent magnet's magnetism decreases. On the other hand, the elastic support composed of springs and plug-shaped glue columns provides dynamic clamping force to offset the risk of loosening caused by vibration and temperature difference. This ensures that the magnetic tongue, which is locked by the screw bolt, is not easily separated from the roller shaft, ensuring the stable use of the quick-change roller structure of the carton processing machinery and effectively solving the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A quick-change roller structure for a carton processing machine includes a roller body with roller shafts integrally formed at both ends. It also includes a magnet changing mechanism, which comprises a disc-fixing groove, a magnet disc, a tongue-fixing groove, a magnetic tongue, and an elastic support. The roller shaft end face has a disc-fixing groove for mounting the magnet disc, and a tongue-fixing groove for mounting the magnetic tongue is formed at the bottom of the disc-fixing groove inwards. The magnetic tongue is integrally formed on the back of the magnet disc. The magnetic tongue has symmetrically formed inner spiral holes on both sides, and T-shaped spiral holes are symmetrically formed on the roller shaft surface outside the inner spiral holes. A slotted bolt is screwed between the T-shaped spiral holes and the inner spiral holes. An elastic support for elastically supporting the slotted bolt is fitted inside the inner spiral holes.

[0007] Furthermore, the elastic support includes an adhesive pad, a pad, a plug-shaped adhesive column, and a spring. The adhesive pad is inserted into and bonded to the bottom of the inner spiral hole, and the pad is bonded to the outer surface of the adhesive pad. The plug-shaped adhesive column is integrally formed on the surface of the pad, and a spring for elastically supporting the pin is sleeved on the outside of the plug-shaped adhesive column.

[0008] By adopting the above technical solution, the pad can be inserted into the inner spiral hole with the help of the adhesive pad, and then the plug-shaped glue column can cooperate with the inner spiral hole to insert the spring to provide guidance and support. When the flathead screw is screwed into the inner spiral hole, the spring and the plug-shaped glue column can elastically support the flathead screw, ensuring that the threaded connection between the flathead screw and the inner spiral hole is tightened and preventing the flathead screw from loosening.

[0009] Furthermore, the elastic cylinder of the plug-shaped rubber column is provided with an annular groove, and the middle part of the plug-shaped rubber column is provided with a central hole;

[0010] By adopting the above technical solution, the plug-shaped rubber column with an annular groove and a central hole is easily deformed under force, thus facilitating the insertion of the plug-shaped rubber column into the inner spiral hole by pressing the screw.

[0011] Furthermore, a slot is provided on the surface of the pad below the plug-shaped rubber column, and a spring ring with a spring glued to it is inserted into the slot;

[0012] By adopting the above technical solution, the pad below the plug-shaped rubber column can be fitted with a spring ring through a slot, thus realizing the connection between the spring and the pad.

[0013] Furthermore, the roller shaft has symmetrically cut flat grooves on its surface, and a T-shaped spiral hole is formed at the flat groove surface of the roller shaft. The head of a straight bolt is screwed into the large cavity of the T-shaped spiral hole.

[0014] By adopting the above technical solution, the roller is provided with a flat groove to open a T-shaped spiral hole, which makes it convenient to hide the head of the straight bolt at the T-shaped spiral hole.

[0015] Furthermore, a semi-circular adhesive groove is formed on the groove wall of the fixed groove and the disk body of the magnet disk, and the fixed groove of the fixed groove and the semi-circular adhesive groove of the magnet disk are joined to form a circular adhesive groove.

[0016] By adopting the above technical solution, after opening a semi-circular glue groove at the plate fixing groove and the magnet plate, high-strength epoxy resin can be squeezed in for bonding.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model solves the problem of difficult replacement of permanent magnets in traditional magnetic adsorption rubber rollers by setting a magnet replacement mechanism at the roller shaft of the rubber roller body. The magnet replacement mechanism solves the problem of difficult replacement of permanent magnets in traditional magnetic adsorption rubber rollers by using a detachable magnet design and an elastic anti-loosening mechanism. On the one hand, the magnet disk and the magnetic tongue can be quickly disassembled by breaking the rubber layer in the semi-circular rubber groove. With the tool-based operation of the one-piece screw, the replacement time of permanent magnets is shortened, making the quick roller replacement structure of the rubber roller body convenient to use and maintain. It avoids the scrapping of the entire roller body of the quick roller replacement structure of the gluing machine after the permanent magnet magnetization decreases.

[0019] On the other hand, the elastic support composed of springs and plug-shaped rubber columns provides dynamic clamping force to counteract the risk of loosening caused by vibration and temperature difference, ensuring that the magnetic tongue part locked by the screw bolt is not easily separated from the roller shaft, and ensuring the stable use of the quick roller changing structure of the carton processing machinery. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the overall structure of a quick roller changing structure for a carton processing machine according to this utility model.

[0021] Figure 2 is a schematic diagram showing the separation of the magnetic tongue and the roller shaft in a quick roller changing structure for a carton processing machine according to this utility model.

[0022] Figure 3 is an exploded view of the magnetic switching mechanism of a quick roller changing structure for a carton processing machine according to this utility model.

[0023] Figure 4 is an exploded view of the elastic support component of the quick roller changing structure for a carton processing machine according to this utility model.

[0024] In the diagram: 1. Rubber roller body; 2. Roller shaft; 3. Magnet changing mechanism; 4. Disc fixing groove; 5. Magnet disc; 6. Tongue fixing groove; 7. Magnetic tongue; 8. T-shaped spiral hole; 9. Inner spiral hole; 10. Straight bolt; 11. Elastic support; 12. Adhesive pad; 13. Pad; 14. Plug-shaped rubber column; 15. Spring; 16. Semi-circular rubber groove. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] As shown in Figures 1-4, a quick roller changing structure for a carton processing machine includes a roller body 1, with roller shafts 2 integrally formed at both ends of the roller body 1, and a magnet changing mechanism 3. The magnet changing mechanism 3 includes a disc fixing groove 4, a magnet disc 5, a tongue fixing groove 6, a magnetic tongue 7, and an elastic support 11. The end face of the roller shaft 2 is provided with a disc fixing groove 4 for mounting the magnet disc 5, and the bottom of the disc fixing groove 4 is provided with a tongue fixing groove 6 for mounting the magnetic tongue 7. The magnetic tongue 7 is integrally formed on the back of the magnet disc 5. The magnetic tongue 7 has symmetrically provided inner rotating holes 9 on both sides, and T-shaped rotating holes 8 are symmetrically provided on the surface of the roller shaft 2 outside the inner rotating holes 9. A straight bolt 10 is screwed between the T-shaped rotating holes 8 and the inner rotating holes 9, and an elastic support 11 for elastically supporting the straight bolt 10 is installed in the inner rotating holes 9.

[0027] The elastic support 11 includes an adhesive pad 12, a pad 13, a plug-shaped adhesive column 14, and a spring 15. The adhesive pad 12 is inserted into and bonded to the bottom of the inner spiral hole 9, and the pad 13 is bonded to the outer surface of the adhesive pad 12. The plug-shaped adhesive column 14 is integrally formed on the surface of the pad 13, and the spring 15 for elastically supporting the screw bolt 10 is sleeved on the outside of the plug-shaped adhesive column 14.

[0028] By adopting the above technical solution, the pad 13 can be inserted into the inner rotating hole 9 with the help of the adhesive pad 12. Then, the plug-shaped adhesive column 14 can cooperate with the inner rotating hole 9 to insert the spring 15 to provide guidance and support. When the flathead screw 10 is screwed into the inner rotating hole 9, the spring 15 and the plug-shaped adhesive column 14 can elastically support the flathead screw 10, ensuring that the threaded connection between the flathead screw 10 and the inner rotating hole 9 is tightened and preventing the flathead screw 10 from loosening.

[0029] The plug-shaped rubber column 14 has an annular groove on its elastic column body and a central hole in its middle part.

[0030] By adopting the above technical solution, the plug-shaped rubber column 14 with an annular groove and a central hole is easily deformed under force, thereby facilitating the insertion of the plug-shaped rubber column 14 into the inner spiral hole 9 by pressing the screw bolt 10.

[0031] The surface of the pad 13 below the plug-shaped rubber column 14 is provided with a slot, and a spring ring with a spring 15 is inserted into the slot.

[0032] By adopting the above technical solution, the pad 13 below the plug-shaped rubber column 14 can be fitted with the spring ring of the spring 15 through the slot, thereby realizing the connection between the spring 15 and the pad 13.

[0033] The roller shaft 2 has symmetrically cut grooves on its surface, and a T-shaped spiral hole 8 is provided at the cut groove surface of the roller shaft 2. The head of a straight bolt 10 is screwed into the large cavity of the T-shaped spiral hole 8.

[0034] By adopting the above technical solution, the roller 2 is provided with a flat groove to open a T-shaped swivel hole 8, which makes it convenient to hide the head of the straight bolt 10 at the T-shaped swivel hole 8.

[0035] The groove wall of the fixed groove 4 and the body of the magnetic disk 5 are provided with a semi-circular glue groove 16, and the fixed groove 4 and the semi-circular glue groove 16 of the magnetic disk 5 are connected to form a circular glue groove.

[0036] By adopting the above technical solution, after the semi-circular glue groove 16 is opened at the plate fixing groove 4 and the magnet plate 5, high-strength epoxy resin glue can be squeezed in for bonding.

[0037] It should be noted that this utility model is a quick roller changing structure for a cardboard box processing machine. A magnetic changing mechanism 3 is set at the roller shaft 2 of the roller body 1. After the magnetic changing mechanism 3 has a disc-fixing groove 4, a magnetic disc 5, a tongue-fixing groove 6, a magnetic tongue 7, and an elastic support 11 set at the roller shaft 2, the pad 13 can be inserted and bonded into the inner rotating hole 9 with the help of an adhesive pad 12. Then, the plug-shaped adhesive column 14 can cooperate with the inner rotating hole 9 to engage the spring 15 for guiding support. The permanent magnet composed of the magnetic tongue 7 and the magnetic disc 5 can be embedded and installed at the roller shaft 2 where the disc-fixing groove 4 and the tongue-fixing groove 6 are set. Next, a flathead screw 10 is screwed into the inner rotating hole 9 of the magnetic tongue 7 from the T-shaped rotating hole 8 to compress the spring 15. When the flathead screw 10 is screwed into the inner rotating hole 9, the spring 15, in conjunction with the plug-shaped adhesive column 14, can elastically support the flathead screw 10, ensuring that the threaded connection between the flathead screw 10 and the inner rotating hole 9 is secure. Tighten the screw cap 10 to prevent it from loosening. Then, after opening a semi-circular glue groove 16 at the base groove 4 and the magnet plate 5, high-strength epoxy resin can be squeezed in for bonding and connection, so as to achieve a firm installation of the permanent magnet on the roller shaft 2. Then, the glue roller body 1 with the permanent magnet can be normally attracted to the magnetic guide component set at the drive shaft end of the existing glue box machine, so as to meet the quick replacement operation of the magnetic adsorption glue roller connection technology. If the magnetism of the permanent magnet decreases after the glue roller body 1 is disassembled, the high-strength epoxy resin in the semi-circular glue groove 16 can be knocked to break it and then removed. Then, the screw cap 10 is rotated in reverse. Then, the magnet plate 5 can be pried from the semi-circular glue groove 16 of the magnet plate 5 with a flathead screwdriver, and then the magnet plate 5 and the magnetic tongue 7 can be pulled out. A new magnet plate 5 and the magnetic tongue 7 can be installed according to the above steps to meet the need for convenient replacement of permanent magnets.

[0038] It should be noted that this utility model is a quick roller changing structure for rubber rollers in carton processing machinery. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-change roller structure for a carton processing machine, comprising a roller body (1), wherein roller shafts (2) are integrally formed at both ends of the roller body (1), characterized in that: It also includes a magnet changing mechanism (3), which includes a disc fixing groove (4), a magnet disc (5), a tongue fixing groove (6), a magnetic tongue (7), and an elastic support (11). The end face of the roller shaft (2) is provided with a disc fixing groove (4) for mounting the magnet disc (5), and the bottom of the disc fixing groove (4) is provided with a tongue fixing groove (6) for mounting the magnetic tongue (7) inwards. The magnetic tongue (7) is integrally formed on the back of the magnet disc (5). The magnetic tongue (7) is symmetrically provided with an inner rotating hole (9) on both sides, and a T-shaped rotating hole (8) is symmetrically provided on the surface of the roller shaft (2) outside the inner rotating hole (9). A straight bolt (10) is screwed between the T-shaped rotating hole (8) and the inner rotating hole (9). An elastic support (11) for elastically supporting the straight bolt (10) is installed in the inner rotating hole (9).

2. The quick roller changing structure for rubber rollers in carton processing machinery according to claim 1, characterized in that: The elastic support (11) includes an adhesive pad (12), a pad (13), a plug-shaped adhesive column (14), and a spring (15). The adhesive pad (12) is inserted into the bottom of the inner spiral hole (9), and the pad (13) is bonded to the outer surface of the adhesive pad (12). The plug-shaped adhesive column (14) is integrally formed on the surface of the pad (13), and the spring (15) for elastically supporting the screw bolt (10) is sleeved on the outside of the plug-shaped adhesive column (14).

3. The quick roller changing structure for rubber rollers in carton processing machinery according to claim 2, characterized in that: The elastic cylinder of the plug-shaped rubber column (14) has an annular groove outside and a central hole in the middle.

4. The quick roller changing structure for rubber rollers in carton processing machinery according to claim 3, characterized in that: The surface of the pad (13) below the plug-shaped rubber column (14) is provided with a slot, and a spring ring with a spring (15) is inserted into the slot.

5. The quick roller changing structure for rubber rollers in carton processing machinery according to claim 1, characterized in that: The roller shaft (2) has symmetrically cut grooves on its surface, and a T-shaped spiral hole (8) is provided at the cut groove surface of the roller shaft (2). The head of a straight bolt (10) is screwed into the large cavity of the T-shaped spiral hole (8).

6. The quick roller changing structure for rubber rollers in carton processing machinery according to claim 1, characterized in that: The groove wall of the fixed groove (4) and the body of the magnetic disk (5) are provided with a semi-circular glue groove (16), and the fixed groove (4) and the semi-circular glue groove (16) of the magnetic disk (5) are connected to form a circular glue groove.