Printing machine with printing roller convenient to replace

Abstract

The utility model relates to the field of printing machines, and discloses a printing machine with a printing roller convenient to replace, which comprises a shell, through holes are formed in the two sides of the shell in a penetrating manner, concave seats are arranged in the two through holes, a rotating rod is arranged between the two concave seats, the outer wall of the rotating rod is sleeved with the printing roller, and sliding blocks are arranged on the two sides of the two concave seats. Grooves are formed in the two sides of the inner wall of the through opening, and a threaded rod is arranged in one groove. By adjusting the positions of the two concave seats, the distance between the printing roller and the conveying roller can be achieved, then the printing device can be suitable for cloth of different thicknesses, a nut is rotated in the direction away from a first gear till the nut is rotated away from a rotating rod, and therefore the first gear can be taken down from the rotating rod; the screw connected between the printing roller and the rotating rod is unscrewed, so that the rotating rod can be pulled out of the printing roller, the printing roller can be conveniently taken out of the shell through the arrangement of the access door, the printing roller is disassembled and maintained, and the printing roller is simple in structure, rapid and convenient to use.

Description

Technical Field

[0001] This application relates to the field of printing presses, and in particular, to a printing press that facilitates the replacement of printing rollers. Background Art

[0002] Self-adhesive labels, also known as sticker labels, are composite materials with paper, film, or special materials as the surface material, an adhesive layer formed on the back, and a silicone-coated protective paper as the backing paper. After printing, die-cutting, and other processing, they become finished labels. During the printing process, printing rollers are required to print on the surface of self-adhesive labels. If the printing rollers are not maintained for a long time, they will wear and cause errors, resulting in problems such as ghosting in printing. Currently, printing rollers are usually of an integral structure during production. When replacement is needed, the corresponding installation mechanisms on the printing press need to be disassembled and assembled, and then the printing rollers can be removed and replaced, resulting in cumbersome and time-consuming operation steps during the replacement of printing rollers, causing inconvenience. Utility Model Content

[0003] To solve the problem that printing rollers are usually of an integral structure during production, and when replacement is needed, the corresponding installation mechanisms on the printing press need to be disassembled and assembled, and then the printing rollers can be removed and replaced, this application provides a printing press that facilitates the replacement of printing rollers.

[0004] A printing press that facilitates the replacement of printing rollers provided by this application adopts the following technical solutions:

[0005] A printing press that facilitates the replacement of printing rollers includes a housing. Through openings are provided on both sides of the housing. Concave seats are provided inside both of the through openings. A rotating rod is provided between the two concave seats. A printing roller is sleeved on the outer wall of the rotating rod. Sliders are provided on both sides of the two concave seats. Grooves are opened on both sides of the inner wall of each through opening. A threaded rod is provided inside one of the grooves. The top end of the threaded rod penetrates the housing and extends upward to be connected with a round plate. One of the sliders is threadedly connected to the threaded rod, and the other slider is slidably connected to the groove.

[0006] Preferably, one end of the rotating rod penetrates the concave seat and extends outward to be sleeved with a first gear. A card slot is opened on the outer wall of the rotating rod. The card slot is engaged with the first gear. One end of the rotating rod penetrates the first gear and extends outward to be sleeved with a nut.

[0007] Preferably, a transmission roller is provided below the printing roller. A shaft rod passes through the transmission roller. One end of the shaft rod penetrates the housing and extends outward to be sleeved with a second gear.

[0008] Preferably, a worm is meshed with the second gear and the first gear. Connecting plates are arranged on both the top surface and the bottom surface of the worm. The top end of the worm penetrates through the connecting plate and extends upward to be connected to the output end of the motor.

[0009] A maintenance opening is provided through the top surface of the housing, and a maintenance door is hinged inside the maintenance opening.

[0010] In summary, the present application includes the following beneficial technical effects:

[0011] 1. By rotating the two circular plates, the rotation of the two circular plates drives the two threaded rods to rotate. The rotation of the two threaded rods drives the sliders thereon to move up and down inside the grooves. The movement of the sliders drives the concave seats and another slider to move up and down in another groove. By adjusting the positions of the two concave seats, the distance between the printing roller and the transmission roller can be realized, and thus it can be applicable to fabrics of different thicknesses;

[0012] 2. Rotate the nut in the direction away from the first gear until the nut rotates away from the rotating rod, so that the first gear can be removed from the rotating rod. Loosen the screw connecting the printing roller and the rotating rod, so that the rotating rod can be pulled out from the printing roller. And through the setting of the maintenance door, it is convenient to take out the printing roller from the housing, realizing the disassembly and maintenance of the printing roller, with a simple structure, fast and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the main structural view of an embodiment of the application;

[0014] Figure 2 is the structural diagram of the gear and the worm in an embodiment of the application;

[0015] Figure 3 is the structural schematic diagram of the through port in an embodiment of the application;

[0016] Figure 4 is the structural schematic diagram of the rotating rod and the printing roller in an embodiment of the application.

[0017] Description of the reference numerals: 1, housing; 2, through port; 3, maintenance door; 4, transmission roller; 5, printing roller; 6, maintenance opening; 7, first gear; 8, rotating rod; 9, nut; 10, second gear; 11, shaft rod; 12, connecting plate; 13, worm; 14, threaded rod; 15, circular plate; 17, groove; 18, concave seat; 19, slider; 20, clamping groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following is a further detailed description of the present application in conjunction with the attached Figures 1-4 to further illustrate the present application.

[0019] An embodiment of the present application discloses a printing machine facilitating the replacement of a printing roller. Refer to Figure 1 、Figure 3 and Figure 4 , including a housing 1. An inspection opening 6 is provided through the top surface of the housing 1. An inspection door 3 is hinged inside the inspection opening 6. Through openings 2 are provided through both sides of the housing 1. Concave seats 18 are movably provided inside the two through openings 2. A rotating rod 8 is movably provided between the two concave seats 18. A printing roller 5 is movably sleeved on the outer wall of the rotating rod 8. Both ends of the printing roller 5 are detachably connected to the rotating rod 8 by screws. Sliders 19 are fixedly provided on both sides of the two concave seats 18. Grooves 17 are opened on both sides of the inner wall of each through opening 2. The sliders 19 are slidably connected to the grooves 17. A threaded rod 14 is provided inside one of the grooves 17. The top end of the threaded rod 14 penetrates through the housing 1 and extends upward to be fixedly connected to a circular plate 15. The threaded rod 14 is rotatably connected to the housing 1. One of the sliders 19 is threadedly connected to the threaded rod 14, and the other slider 19 is slidably connected to the groove 17. By rotating the two circular plates 15, the rotation of the two circular plates 15 drives the two threaded rods 14 to rotate. The rotation of the two threaded rods 14 drives the sliders 19 thereon to move up and down inside the grooves 17. The movement of the sliders 19 drives the concave seats 18 and the other slider 19 to move up and down inside the other groove 17. By adjusting the positions of the two concave seats 18, the distance between the printing roller 5 and the transmission roller 4 can be realized, and thus it can be applicable to fabrics of different thicknesses.

[0020] Referring to Figure 2 and Figure 4 , one end of the rotating rod 8 penetrates through the concave seat 18 and extends outward to be movably sleeved with a first gear 7. A card slot 20 is opened on the outer wall of the rotating rod 8. The card slot 20 is engaged with the first gear 7. One end of the rotating rod 8 penetrates through the first gear 7 and extends outward to be sleeved with a nut 9. Rotate the nut 9 in the direction away from the first gear 7 until the nut 9 rotates away from the rotating rod 8, so that the first gear 7 can be removed from the rotating rod 8. Loosen the screw connecting the printing roller 5 and the rotating rod 8, so that the rotating rod 8 can be pulled out of the printing roller 5. And through the arrangement of the inspection door 3, it is convenient to take out the printing roller 5 from the housing 1 to realize the disassembly and maintenance of the printing roller 5.

[0021] Referring to Figure 2, a transmission roller 4 is provided below the printing roller 5. A shaft rod 11 is fixedly penetrated through the transmission roller 4. Both ends of the shaft rod 11 are rotatably connected to the housing 1. One end of the shaft rod 11 penetrates through the housing 1 and extends outward to be fixedly sleeved with a second gear 10. The second gear 10 and the first gear 7 are meshed with a worm 13. Connecting plates 12 are provided on both the top surface and the bottom surface of the worm 13. The connecting plates 12 are rotatably connected to the worm 13. The top end of the worm 13 penetrates through the connecting plate 12 and extends upward to be connected to the output end of the motor. The connecting plate 12 is fixedly connected to the housing 1. The output end of the motor drives the worm 13 to rotate. The rotation of the worm 13 drives the first gear 7 and the second gear 10 to rotate. The rotation of the first gear 7 and the second gear 10 respectively drives the printing roller 5 and the transmission roller 4 to rotate, realizing the printing and transmission operation of the fabric.

[0022] The implementation principle of a printing machine facilitating the replacement of the printing roller in an embodiment of the present application is as follows: During use, the distance between the printing roller 5 and the transmission roller 4 is adjusted according to the thickness of the fabric. First, by rotating two circular plates 15, the rotation of the two circular plates 15 drives two threaded rods 14 to rotate. The rotation of the two threaded rods 14 drives the sliders 19 thereon to move up and down inside the grooves 17. The movement of the sliders 19 drives the concave seats 18 and another slider 19 to move up and down in another groove 17. By adjusting the positions of the two concave seats 18, the distance between the printing roller 5 and the transmission roller 4 is adjusted. Then, the output end of the motor drives the worm 13 to rotate. The rotation of the worm 13 drives the first gear 7 and the second gear 10 to rotate. The rotation of the first gear 7 and the second gear 10 respectively drives the printing roller 5 and the transmission roller 4 to rotate, realizing the printing and transmission operation of the fabric.

[0023] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0024] Secondly: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, the usual designs can be referred to. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0025] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. 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.

[0026] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A printing press for facilitating replacement of a printing roller, comprising a housing (1), characterized in that: Through openings (2) are provided on both sides of the shell (1), and concave seats (18) are provided inside the two through openings (2). A rotating rod (8) is provided between the two concave seats (18), and a printing roller (5) is sleeved on the outer wall of the rotating rod (8). Slide blocks (19) are provided on both sides of the two concave seats (18). Grooves (17) are provided on both sides of the inner wall of each through opening (2), and a threaded rod (14) is provided inside one of the grooves (17). The top end of the threaded rod (14) passes through the shell (1) and is extended upward to be connected to a circular plate (15). One of the slide blocks (19) is threadedly connected to the threaded rod (14), and the other slide block (19) is slidably connected to the groove (17).

2. A printing press for facilitating replacement of printing rollers according to claim 1, characterized in that: One end of the rotating rod (8) passes through the concave seat (18) and extends outward to be sleeved with a first gear (7); an outer wall of the rotating rod (8) is provided with a clamping groove (20) which is clamped with the first gear (7); one end of the rotating rod (8) passes through the first gear (7) and extends outward to be sleeved with a nut (9).

3. A printing press for facilitating replacement of printing rollers according to claim 2, characterized in that: A transmission roller (4) is provided below the printing roller (5), and a shaft (11) is passed through the transmission roller (4). One end of the shaft (11) passes through the housing (1) and extends outward to be sleeved with a second gear (10).

4. A printing press for facilitating replacement of printing rollers according to claim 3, characterized in that: The second gear (10) and the first gear (7) are meshedly connected with a worm (13), the top and bottom surfaces of the worm (13) are both provided with connecting plates (12), the top end of the worm (13) penetrates the connecting plate (12) and extends upward to be connected with the output end of the motor.

5. A printing press for facilitating replacement of printing rollers according to claim 1, characterized in that: The top surface of the shell (1) is provided with an inspection opening (6) through which an inspection door (3) is hingedly connected inside the inspection opening (6).

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