Convenient-to-disassemble printing roller of printing machine

Abstract

The utility model relates to the technical field of printing machine printing rollers, and discloses a conveniently-disassembled printing machine printing roller which comprises two sets of printing roller bodies which are symmetrically arranged, and extending mechanisms used for adjusting the distance between the two sets of printing roller bodies are arranged in the two sets of printing roller bodies. Fixing frames are installed at the ends, opposite to each other, of the two printing roller bodies, a connecting sleeve is installed on the surface of each fixing frame, and a connecting mechanism used for installing the two printing roller bodies on equipment is connected into each connecting sleeve. According to the convenient-to-disassemble printing roller of the printing machine, the problems that in the prior art, most printing machines are provided with racks, printing rollers are installed on the racks, in order to ensure the stability of the printing rollers during use, the printing rollers need to be fixed through a complicated installation structure, and great trouble is brought to subsequent disassembly and maintenance; and meanwhile, an existing printing roller is fixed in size and is difficult to meet different use requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of printing rollers for printing presses, in particular to a detachable printing roller for printing presses. Background Art

[0002] Modern printing presses are generally composed of mechanisms such as plate mounting, inking, embossing, and paper feeding (including folding). Its working principle is: first, the text and image to be printed are made into a printing plate, mounted on the printing press, and then the ink is applied to the places with text and images on the printing plate by manual or printing press, and then directly or indirectly transferred to paper or other substrates (such as textiles, metal plates, plastics, leather, wood boards, glass and ceramics), thereby replicating the same print as the printing plate. The printing roller is one of the important components in the printing press. There are two categories: hard rollers and soft rollers. It is mainly used as a roller body for embossing, ink mixing, and ink transfer in the printing press.

[0003] In the prior art, most printing machines have a frame on which a printing roller is installed. In order to ensure the stability of the printing roller during use, a complicated installation structure is required to fix the printing roller, which also brings great trouble to the subsequent disassembly and maintenance. At the same time, the existing printing roller has a fixed size and is difficult to adapt to different usage needs. Therefore, a detachable printing roller is needed to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a detachable printing roller for a printing press, which solves the problem that most printing presses in the prior art have a frame on which a printing roller is mounted, and in order to ensure the stability of the printing roller during use, a complicated mounting structure is required to fix the printing roller, which also brings great trouble to subsequent disassembly and maintenance. At the same time, the existing printing roller has a fixed size and is difficult to adapt to different usage needs.

[0006] (II) Technical solution

[0007] The utility model solves the above-mentioned technical problem with a technical solution as follows: a detachable printing roller of a printing press, comprising two symmetrically arranged groups of printing roller bodies, the two groups of printing roller bodies are provided with extension mechanisms for adjusting the distance between the two groups of printing roller bodies, the two groups of printing roller bodies are both provided with fixing frames at the opposite ends, the surface of each group of the fixing frames is provided with a connecting sleeve, and each group of the connecting sleeves is connected with a connecting mechanism for mounting the two groups of printing roller bodies on the equipment.

[0008] Preferably, the extension mechanism includes a knob rotatably connected to the two groups of printing roller bodies, a sleeve rod is installed on the surface of the opposite side of the two groups of knobs, an extension rod is arranged inside the sleeve rod, a threaded rod is connected inside the sleeve rod through the extension rod, two groups of moving blocks are threadedly connected to the surface of the threaded rod, an adjusting rod is connected to the surface of each group of moving blocks, the ends of the two groups of adjusting rods on the same side are connected to the extension tube, and a limiting plate is installed on the surface of each group of extension tubes.

[0009] Preferably, a plurality of mounting strips are symmetrically mounted on the surface of each group of the extension rods, and a mounting groove matching the extension rods is provided in each group of the sleeve rods, and a plurality of rectangular grooves matching the mounting strips are symmetrically provided in the mounting grooves.

[0010] Preferably, a plurality of hinges are symmetrically mounted on the surface of each group of the moving blocks, and hinges of the same structure are mounted on the surface of each group of the extension tubes, and both ends of the adjustment rod are respectively connected to the extension tube and the moving blocks through the hinges.

[0011] Preferably, the connecting mechanism comprises a mounting rod threadedly mounted in a connecting sleeve, an end of the mounting rod is connected to a transmission rod, a surface of the transmission rod is sleeved with a fixing head, and a surface of the transmission rod is sleeved with a spring.

[0012] Preferably, a plurality of groups of convex strips are symmetrically installed on the surface of the transmission rod, and a through groove compatible with the transmission rod is opened in the fixed head, and a clamping groove compatible with the convex strip is opened in the through groove, one end of the spring is installed on the surface of the fixed head, and the other end is installed on the surface of the mounting rod.

[0013] The beneficial effects of the utility model are:

[0014] 1) When installing the printing roller of the detachable printing press, you only need to pinch the two sets of fixed heads to retract them, then align the printing roller body with the mounting hole on the support frame and release the fixed heads. Under the action of the spring, the fixed heads are driven to be firmly connected to the support frame. When disassembling, you only need to pinch the fixed heads again to retract them to separate the printing roller body from the support frame. The structure is simple and easy to disassemble.

[0015] 2) When the printing roller of the detachable printing press needs to extend the size of the printing roller body during use, it is only necessary to pull the two groups of printing roller bodies, and then turn the knob to drive the threaded rod to rotate. At this time, the moving blocks on the surface of the threaded rod move in opposite directions, and then the adjusting rod on the surface of the moving block pushes the extension tube out to make it between the two groups of printing roller bodies. Since the size of the printing roller body is extended, when installing the printing roller body, it is necessary to further compress the size of the spring. While meeting the structural requirements, the stability of the installation of the printing roller body is further guaranteed, and the scope of application is greatly increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the extension mechanism structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the threaded rod installation structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the transmission rod of the utility model.

[0020] In the figure: 1. printing roller body; 2. extension mechanism; 201. knob; 202. sleeve rod; 203. threaded rod; 204. extension rod; 205. moving block; 206. adjusting rod; 207. extension cylinder; 208. limit plate; 3. fixing frame; 4. connecting sleeve; 5. connecting mechanism; 501. mounting rod; 502. transmission rod; 503. fixing head; 504. spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1, by Figure 1 , 2 4 shows a detachable printing roller of a printing press, comprising two symmetrically arranged printing roller bodies 1, wherein the two printing roller bodies 1 are provided with an extension mechanism 2 for adjusting the distance between the two printing roller bodies 1, and the two printing roller bodies 1 are both provided with a fixing frame 3 at the opposite ends thereof, and a connecting sleeve 4 is provided on the surface of each fixing frame 3;

[0023] The extension mechanism 2 includes a knob 201 rotatably connected to two groups of printing roller bodies 1, and sleeve rods 202 are installed on the surfaces of the opposite sides of the two groups of knobs 201. An extension rod 204 is arranged in the sleeve rod 202, and a threaded rod 203 is connected to the sleeve rod 202 through the extension rod 204. Two groups of moving blocks 205 are threadedly connected on the surface of the threaded rod 203, and an adjusting rod 206 is connected to the surface of each group of moving blocks 205. The ends of the two groups of adjusting rods 206 on the same side are connected to an extension tube 207, and a limiting plate 208 is installed on the surface of each group of extension tubes 207. A plurality of groups of suspension rods are symmetrically installed on the inner wall of the printing roller body 1, and a limiting groove compatible with the suspension rod is opened in the limiting plate 208. The limiting plate 208 and the suspension rod can ensure the stability of the extension tube 207 during the extension process.

[0024] A plurality of mounting strips are symmetrically installed on the surface of each group of extension rods 204, and a mounting groove matching the extension rods 204 is provided in each group of sleeve rods 202, and a plurality of rectangular grooves matching the mounting strips are symmetrically provided in the mounting grooves, a plurality of hinges are symmetrically installed on the surface of each group of moving blocks 205, and a hinge of the same structure is installed on the surface of each group of extension cylinders 207, and both ends of the adjusting rod 206 are respectively connected to the extension cylinder 207 and the moving block 205 through hinges.

[0025] When the size of the printing roller body 1 is extended by means of the structure, it is only necessary to pull the two groups of printing roller bodies 1, and then turn the knob 201 to drive the threaded rod 203 to rotate. At this time, the moving blocks 205 on the surface of the threaded rod 203 move in opposite directions, and then the adjusting rod 206 on the surface of the moving block 205 pushes the extension tube 207 out to make it between the two groups of printing roller bodies 1, thereby greatly increasing the scope of application.

[0026] Embodiment 2, by Figure 1-3 It is shown that, based on the first embodiment, each group of connecting sleeves 4 is connected with a connecting mechanism 5 for mounting two groups of printing roller bodies 1 on the equipment, and the connecting mechanism 5 includes a mounting rod 501 threadedly mounted in the connecting sleeve 4, and the end of the mounting rod 501 is connected to a transmission rod 502, and the surface of the transmission rod 502 is provided with a fixed head 503, and the surface of the transmission rod 502 is provided with a spring 504.

[0027] The surface of the transmission rod 502 is symmetrically provided with a plurality of convex strips, and a through groove matched with the transmission rod 502 is provided in the fixed head 503, and a card slot matched with the convex strip is provided in the through groove. One end of the spring 504 is installed on the surface of the fixed head 503, and the other end is installed on the surface of the mounting rod 501. When disassembling, it is only necessary to pinch the fixed head 503 to retract it to separate the printing roller body 1 from the support frame. The structure is simple and the disassembly is convenient.

[0028] Working principle: when installing the printing roller body 1, it is only necessary to pinch the two groups of fixed heads 503 to retract them, then align the printing roller body 1 with the mounting hole on the support frame and release the fixed head 503. Under the action of the spring 504, the fixed head 503 is driven to be firmly clamped on the support frame. When using, if it is necessary to extend the size of the printing roller body 1, it is only necessary to pull the two groups of printing roller bodies 1, and then turn the knob 201 to drive the threaded rod 203 to rotate. At this time, the moving blocks 205 on the surface of the threaded rod 203 move in opposite directions, and then the adjusting rod 206 on the surface of the moving block 205 pushes the extension tube 207 out to make it between the two groups of printing roller bodies 1. Due to the extension of the size of the printing roller body 1, when installing the printing roller body 1, it is necessary to further compress the size of the spring 504. While meeting the structural requirements, the stability of the installation of the printing roller body 1 is further guaranteed. When disassembling, it is only necessary to pinch the fixed head 503 again to retract it to separate the printing roller body 1 from the support frame. The structure is simple and easy to disassemble.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable printing roller for a printing press, characterized in that: The invention comprises two groups of printing roller bodies (1) arranged symmetrically, wherein an extension mechanism (2) for adjusting the distance between the two groups of printing roller bodies (1) is arranged in the two groups of printing roller bodies (1), a fixing frame (3) is installed at the opposite ends of the two groups of printing roller bodies (1), a connecting sleeve (4) is installed on the surface of each group of the fixing frame (3), and a connecting mechanism (5) for mounting the two groups of printing roller bodies (1) on the equipment is connected in each group of the connecting sleeves (4).

2. The detachable printing roller of a printing press according to claim 1, characterized in that: The extension mechanism (2) comprises a knob (201) rotatably connected to two groups of printing roller bodies (1); sleeve rods (202) are installed on opposite surfaces of the two groups of knobs (201); an extension rod (204) is arranged inside the sleeve rod (202); a threaded rod (203) is connected to the sleeve rod (202) via the extension rod (204); two groups of moving blocks (205) are threadedly connected to the surface of each group of moving blocks (205); an adjusting rod (206) is connected to the surface of each group of moving blocks (205); the ends of the two groups of adjusting rods (206) on the same side are connected to an extension tube (207); and a limiting plate (208) is installed on the surface of each group of extension tubes (207).

3. The detachable printing roller of a printing press according to claim 2, characterized in that: A plurality of mounting strips are symmetrically mounted on the surface of each group of extension rods (204), and a mounting groove matching the extension rods (204) is provided in each group of sleeve rods (202), and a plurality of rectangular grooves matching the mounting strips are symmetrically provided in the mounting grooves.

4. The detachable printing roller of a printing press according to claim 2, characterized in that: The surface of each group of the moving blocks (205) is symmetrically mounted with multiple groups of hinges, and the surface of each group of the extension tubes (207) is mounted with hinges of the same structure, and the two ends of the adjustment rod (206) are respectively connected to the extension tube (207) and the moving blocks (205) through the hinges.

5. The detachable printing roller of a printing press according to claim 1, characterized in that: The connecting mechanism (5) comprises a mounting rod (501) threadedly mounted in a connecting sleeve (4); the end of the mounting rod (501) is connected to a transmission rod (502); a fixed head (503) is sleeved on the surface of the transmission rod (502); and a spring (504) is sleeved on the surface of the transmission rod (502).

6. The detachable printing roller of a printing press according to claim 5, characterized in that: The surface of the transmission rod (502) is symmetrically provided with a plurality of groups of convex strips, and a through slot matching the transmission rod (502) is provided in the fixing head (503), and a clamping slot matching the convex strip is provided in the through slot, and one end of the spring (504) is installed on the surface of the fixing head (503), and the other end is installed on the surface of the mounting rod (501).

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