Printing roller convenient to replace

Abstract

The utility model relates to the field of printing equipment, in particular to a convenient-to-replace printing roller which comprises a roller body and roller shafts mounted on the two sides of the roller body. A telescopic shaft is horizontally installed at the end, close to the roller, of the roller shaft in a sliding mode, a limiting assembly used for limiting the telescopic shaft is arranged on the roller shaft, a special-shaped inserting head is fixedly installed at the end, close to the roller, of the telescopic shaft, and a special-shaped inserting groove matched with the special-shaped inserting head is formed in the roller. The printing device has the effect of facilitating replacement of the printing roller.

Description

Technical Field

[0001] The present application relates to the field of printing equipment, and in particular to a printing roller that is easy to replace. Background Art

[0002] A machine for printing text and images. A modern printing press is generally composed of mechanisms such as plate mounting, inking, embossing, and paper feeding (including folding). Its working principle is to first make the text and image to be printed into a printing plate, install it on the printing press, and then apply ink to the areas with text and images on the printing plate manually or by the printing press, and then transfer it directly or indirectly to paper or other substrates (such as textiles, metal plates, plastics, leather, wood boards, glass and ceramics), thereby reproducing a printed product identical to the printing plate.

[0003] In order to facilitate the automatic printing of printed products, corresponding printing rollers are generally provided to convey the printed products. However, many existing printing rollers are integrally formed, so when products with different patterns need to be printed, the printing rollers need to be replaced as a whole, which is a cumbersome process. Utility Model Content

[0004] In order to facilitate the replacement of the printing roller, the present application provides a printing roller that is easy to replace.

[0005] The present application provides a printing roller that is easy to replace and adopts the following technical solution:

[0006] A printing roller that is easy to replace includes a roller and roller shafts installed on both sides of the roller; a telescopic shaft is horizontally slidably installed on one end of the roller shaft close to the roller, and a limiting component for limiting the telescopic shaft is provided on the roller shaft; a special-shaped plug is fixedly installed on the end of the telescopic shaft close to the roller, and a special-shaped slot matching the special-shaped plug is opened on the roller.

[0007] Optionally, a slide groove is provided at one end of the roller shaft near the roller, and the telescopic shaft is slidably installed in the slide groove; a limit groove and a limit hole are provided on the circumferential wall of the roller shaft, and the limit hole is provided at the bottom of the limit groove, and the limit hole is used to vertically connect the limit groove and the slide groove; a plurality of connecting grooves corresponding to the limit holes are horizontally equidistantly provided on the circumferential wall of the telescopic shaft; the limit assembly includes a limit plate, a limit spring and a limit rod, one end of the limit rod is located in the limit groove, and the other end passes through the limit hole and is inserted into the connecting groove, the limit plate is fixedly installed on one end of the limit rod located in the limit groove, the limit spring is located in the limit groove, the limit spring ring is sleeved on the circumferential wall of the limit rod, one end of the limit spring is fixedly connected to one end of the limit plate close to the limit rod, and the other end is fixedly connected to the bottom of the limit groove.

[0008] Optionally, an arc-shaped handle is installed on the end of the limiting plate that is away from the limiting rod and can be rotated horizontally.

[0009] Optionally, when the limiting rod is inserted into the connecting groove of the telescopic shaft, the end of the limiting plate facing away from the limiting rod is flush with the circumferential wall of the roller shaft.

[0010] Optionally, one end of the limiting rod inserted into the connecting groove is in the shape of an inclined surface facing the bottom of the sliding groove.

[0011] Optionally, a guide groove is provided on the groove wall of the slide groove, and the position of the guide groove is opposite to the position of the limiting hole; a guide plate is fixedly installed on the telescopic shaft, and the position of the guide plate is opposite to the position of the connecting groove, and the guide plate is slidably installed in the guide groove.

[0012] Optionally, a strong spring and a special-shaped baffle are installed in the special-shaped slot, the special-shaped baffle is slidably installed in the special-shaped slot, the special-shaped baffle is abutted against the special-shaped plug, the strong spring is located between the special-shaped baffle and the bottom of the special-shaped slot, one end of the strong spring is fixedly connected to the special-shaped baffle, and the other end is fixedly connected to the bottom of the special-shaped slot.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] 1. The roller can be disassembled and installed by sliding the telescopic shaft, so as to facilitate the replacement of the printing roller.

[0015] 2. Through the setting of the special-shaped baffle and the strong spring, during the process of disassembling the roller, the staff moves the arc-shaped handle upward, which drives the limit rod to slide out of the connecting groove. The strong spring resets, causing the special-shaped plug to slide out of the special-shaped slot, achieving a labor-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an overall cross-sectional view of a printing roller that is easy to replace according to an embodiment of the present application.

[0017] Figure 2 This is a partial cross-sectional view of a printing roller that is easy to replace according to an embodiment of the present application.

[0018] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0019] Figure 4 This is a schematic diagram of a special-shaped plug for a printing roller that is easy to replace according to an embodiment of the present application.

[0020] Explanation of the accompanying reference numerals: 1. Roller; 11. Special-shaped slot; 12. Special-shaped baffle; 13. Strong spring; 2. Roller shaft; 21. Slide groove; 22. Limiting groove; 23. Limiting hole; 24. Guide groove; 3. Telescopic shaft; 31. Special-shaped plug; 32. Connecting groove; 33. Guide plate; 4. Limiting assembly; 41. Limiting plate; 42. Limiting spring; 43. Limiting rod; 5. Arc-shaped handle. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 This application is described in further detail.

[0022] The embodiment of the present application discloses a printing roller that is easy to replace.

[0023] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 A printing roller that is easily replaceable includes a roller 1 and roller shafts 2 mounted at both ends of the roller 1. A pattern is engraved on the circumferential wall of the roller 1, and the roller 1 and the roller shaft 2 are detachably connected. When a different pattern needs to be changed to print a different product, it can be done by replacing the roller 1. That is, there is no need to replace the entire printing roller, thereby effectively improving the replacement rate. In addition, there is no need to equip multiple integrated printing rollers, only multiple rollers 1 are required, effectively reducing equipment costs.

[0024] A slide groove 21 is provided at one end of the roller shaft 2, close to the shaft cylinder. The telescopic shaft 3 is slidably mounted in the slide groove 21, and the groove wall of the slide groove 21 is tightly abutted against the circumferential wall of the telescopic shaft 3. A limit groove 22 and a limit hole 23 are provided on the circumferential wall of the roller shaft 2. The limit hole 23 is vertically provided at the bottom of the limit groove 22, and the limit hole 23 is used to connect the limit groove 22 and the slide groove 21. A plurality of connecting grooves 32 are equidistantly provided in the horizontal direction on the circumferential wall of the telescopic shaft 3. A limit assembly 4 for limiting the telescopic shaft 3 is provided on the roller shaft 2. The limiting assembly 4 includes a limiting plate 41, a limiting spring 42, and a limiting rod 43. One end of the limiting rod 43 is located in the limiting groove 22, and the other end passes through the limiting hole 23 and is inserted into the connecting groove 32. The limiting plate 41 is fixedly mounted on the end of the limiting rod 43 located in the limiting groove 22. The limiting spring 42 is located in the limiting groove 22 and is looped around the circumferential wall of the limiting rod 43. One end of the limiting spring 42 is fixedly connected to the end of the limiting plate 41 near the limiting rod 43, and the other end is fixedly connected to the bottom of the limiting groove 22. It should be noted that in order to enhance the aesthetics of the roller shaft 2, when the limiting rod 43 is inserted into the connecting groove 32 of the telescopic shaft 3, the end of the limiting plate 41 facing away from the limiting rod 43 is flush with the circumferential wall of the roller shaft 2.

[0025] To facilitate the sliding of the telescopic shaft 3 toward the outside of the chute 21, one end of the limiting rod 43 inserted into the connecting groove 32 is inclined toward the bottom of the chute 21. When the telescopic shaft 3 slides toward the outside of the chute 21, the wall of the connecting groove 32 exerts an upward force on the inclined end of the limiting rod 43, thereby moving the limiting rod 43 upward. This eliminates the need to pull the limiting plate 41 to move the limiting rod 43 upward, thus saving effort.

[0026] In order to facilitate pulling the limiting plate 41 , an arc-shaped handle 5 is horizontally rotatably mounted on the limiting plate 41 .

[0027] When the telescopic shaft 3 slides in the direction toward the inside of the slide groove 21, the staff pulls the arc handle 5 upward, and the arc handle 5 drives the limit rod 43 to move upward, thereby putting the limit spring 42 in a stretched state. When the limit hole 23 corresponds to the appropriate connecting groove 32 on the telescopic rod 2, the staff releases the arc handle 5, and the limit spring 42 resets, causing the limit rod 43 to be inserted into the connecting groove 32.

[0028] In order to prevent the telescopic shaft 3 from rotating during the process of sliding in and out of the slide groove 21, a guide groove 24 is opened on the groove wall of the slide groove 21, and the position of the guide groove 24 is opposite to the position of the limit hole 23; a guide plate 33 is fixedly installed on the telescopic shaft 3, and the position of the guide plate 33 is opposite to the position of the connecting groove 32, and the guide plate 33 is slidably installed in the guide groove 24.

[0029] A cross-shaped plug 31 is fixedly mounted on the end of the telescopic shaft 3 near the roller. A shaped slot 11 is formed on the roller 1 to match the plug 31. The plug 31 is inserted into the slot 11. When the roller 2 rotates, the roller 2 drives the telescopic shaft 3, which in turn drives the roller 1.

[0030] When replacing rollers 1 of different lengths, due to the spacing of the connecting grooves 32 on the telescopic shaft 3, after the shaped plug 31 is inserted into the shaped slot 11, the shaped plug 31 does not abut against the bottom of the slot 11, causing the roller 1 to wobble left and right during rotation. Therefore, a strong spring 13 and a shaped baffle 12 are installed in the shaped slot 11. The shaped baffle 12 is slidably installed in the shaped slot 11. The strong spring 13 is located between the shaped baffle 12 and the bottom of the slot 11. One end of the strong spring 13 is fixedly connected to the shaped baffle 12, and the other end is fixedly connected to the bottom of the slot 11. When the shaped plug 31 is inserted into the shaped slot 11, the shaped baffle 12 abuts against the shaped plug 31, and the shaped baffle 12 compresses the strong spring 13, preventing the roller 1 from wobble left and right during rotation. At the same time, when the roller 1 needs to be disassembled, the staff moves the arc handle 5 upward, thereby driving the limit rod 43 to slide out of the connecting groove 32, and the strong spring 13 resets, causing the special-shaped plug 31 to slide out of the special-shaped slot 11, further achieving the effect of convenient disassembly and labor-saving.

[0031] The implementation principle of the printing roller that is easy to replace in the embodiment of the present application is as follows: when the roller 1 needs to be disassembled, the staff moves the arc-shaped handle 5 upward, thereby driving the limit rod 43 to slide out of the connecting groove 32, and the strong spring 13 resets, causing the special-shaped plug 31 to slide out of the special-shaped slot 11; when the roller 1 needs to be installed, the staff aligns the special-shaped plug 31 and the special-shaped slot 11, and moves the two telescopic shafts 3 toward each other until the special-shaped plug 31 is inserted into the special-shaped slot 11, and at the same time the limit rod 43 is inserted into the connecting groove 32, thereby achieving the effect of facilitating the replacement of the printing roller.

[0032] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A printing roller that is easy to replace, characterized in that: The invention comprises a roller (1) and roller shafts (2) installed on both sides of the roller (1); a telescopic shaft (3) is horizontally slidably installed at one end of the roller shaft (2) close to the roller (1); a limiting assembly (4) for limiting the telescopic shaft (3) is provided on the roller shaft (2); a special-shaped plug (31) is fixedly installed at one end of the telescopic shaft (3) close to the roller (1); and a special-shaped slot (11) matching the special-shaped plug (31) is provided on the roller (1).

2. The easily replaceable printing roller according to claim 1, characterized in that: The roller shaft (2) is provided with a slide groove (21) at one end close to the roller (1), and the telescopic shaft (3) is slidably installed in the slide groove (21); a limit groove (22) and a limit hole (23) are provided on the circumferential wall of the roller shaft (2), and the limit hole (23) is provided at the bottom of the limit groove (22), and the limit hole (23) is used to vertically connect the limit groove (22) and the slide groove (21); a plurality of connecting grooves (32) corresponding to the limit holes (23) are provided horizontally and equidistantly on the circumferential wall of the telescopic shaft (3); the limit assembly (4) includes a limit plate (41), a limit spring A spring (42) and a limiting rod (43), one end of the limiting rod (43) is located in the limiting groove (22), and the other end passes through the limiting hole (23) and is inserted into the connecting groove (32), the limiting plate (41) is fixedly installed on one end of the limiting rod (43) located in the limiting groove (22), the limiting spring (42) is located in the limiting groove (22), the limiting spring (42) is sleeved on the circumferential wall of the limiting rod (43), one end of the limiting spring (42) is fixedly connected to one end of the limiting plate (41) close to the limiting rod (43), and the other end is fixedly connected to the bottom of the limiting groove (22).

3. The easily replaceable printing roller according to claim 2, characterized in that: An arc-shaped handle (5) is horizontally rotatably mounted on one end of the limiting plate (41) away from the limiting rod (43).

4. The easily replaceable printing roller according to claim 3, characterized in that: When the limiting rod (43) is inserted into the connecting groove (32) of the telescopic shaft (3), the end of the limiting plate (41) facing away from the limiting rod (43) is flush with the circumferential wall of the roller shaft (2).

5. The easily replaceable printing roller according to claim 2, characterized in that: One end of the limiting rod (43) inserted into the connecting groove (32) is in the shape of an inclined surface facing the groove bottom of the sliding groove (21).

6. The easily replaceable printing roller according to claim 2, characterized in that: A guide groove (24) is provided on the groove wall of the slide groove (21), and the position of the guide groove (24) is opposite to the position of the limiting hole (23); a guide plate (33) is fixedly installed on the telescopic shaft (3), and the position of the guide plate (33) is opposite to the position of the connecting groove (32), and the guide plate (33) is slidably installed in the guide groove (24).

7. The easily replaceable printing roller according to claim 1, characterized in that: A strong spring (13) and a special-shaped baffle (12) are installed in the special-shaped slot (11); the special-shaped baffle (12) is slidably installed in the special-shaped slot (11); the special-shaped baffle (12) abuts against the special-shaped plug (31); the strong spring (13) is located between the special-shaped baffle (12) and the bottom of the special-shaped slot (11); one end of the strong spring (13) is fixedly connected to the special-shaped baffle (12), and the other end is fixedly connected to the bottom of the special-shaped slot (11).

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