Printing plate roller replacing mechanism

Abstract

The utility model discloses a printing plate roller replacing mechanism which comprises a machine frame. The two bracket seats are arranged on the rack and are used for mounting a printing plate roller; the printing plate roller is arranged to achieve replacement of the sleeve, and the two ends of the printing plate roller are installed on the two bracket bases respectively; wherein one bracket seat is movably matched with the rack and is provided with a matching position for supporting a printing plate roller and a separating position separated from the printing plate roller; and the locking assembly is arranged to be used for fixing the bracket seat in the matched position. The printing plate roller sleeve replacing device has the advantages that the printing plate roller sleeve can be replaced conveniently, and therefore the replacing efficiency and replacing quality of the printing plate roller sleeve are improved.

Description

Technical Field

[0001] The utility model relates to a printing press, in particular to a plate cylinder replacement mechanism. Background Art

[0002] A printing press is a mechanical device used to print words, patterns, images, etc. onto paper, fabric, plastic, or other materials. It is widely used in the publishing industry, packaging industry, advertising industry, and the identification and decoration fields of various industrial products. With the progress of technology, the printing press has evolved from traditional manual operation to automation, digitization, and even intelligence.

[0003] The printing press includes several plate cylinders, and the existence of the plate cylinder is to achieve the transmission of ink, and the sleeve on the plate cylinder needs to be replaced according to different processed products. The existing installation method of the plate cylinder on the support plate seat is to place the plate cylinder on the support plate seat and then fix it through a bolt structure. When the sleeve needs to be replaced, the entire plate cylinder needs to be removed from the support plate seat, and then the sleeve is replaced. Due to the heavy weight of the whole plate cylinder and the cumbersome operation of the bolt fastening structure, the replacement work load of the existing plate cylinder is heavy and the workload is large, which greatly affects the replacement efficiency and quality of the plate cylinder. Content of the Utility Model

[0004] The purpose of the utility model is to provide a plate cylinder replacement mechanism, which can realize the convenient replacement of the sleeve of the plate cylinder, so as to improve the replacement efficiency and quality of the sleeve of the plate cylinder.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a plate cylinder replacement mechanism, including: a frame; two bracket seats, arranged on the frame and for installing the plate cylinder; a plate cylinder, set to be able to replace the sleeve and both ends are respectively installed on the two bracket seats; one of the bracket seats is movably matched with the frame and has a matching position for supporting the plate cylinder and a separating position separated from the plate cylinder; a locking component, set to be used for fixing the bracket seat in the matching position.

[0006] By adopting the above technical solutions, both ends of the plate cylinder are respectively installed on the two bracket seats to complete the installation operation of the plate cylinder. When it is necessary to replace the sleeve on the plate cylinder, the locking component is released, and then the bracket seat corresponding to the locking component is moved from the matching position to the separating position to separate the support plate seat from the plate cylinder, and without the obstruction of the support plate seat, the replacement operation of the plate cylinder sleeve can be realized. This setting structure makes the replacement operation of the plate cylinder sleeve more convenient, so as to improve the replacement efficiency and quality of the plate cylinder sleeve.

[0007] Further set as: the movable mating relationship between the bracket seat and the frame includes a sliding fit, and the sliding direction of the bracket seat is parallel to the axis of the plate cylinder.

[0008] By adopting the above technical solution, the position of the bracket seat is changed by sliding, so as to realize the switching of the bracket seat between the mating position and the separating position.

[0009] Further set as: the sliding path of the bracket seat includes a mating path for forming the mating between the bracket seat and the plate cylinder and a separating path for forming the separation between the bracket seat and the plate cylinder. The separating path is movably provided with an abutting position and a non-abutting position for connecting the mating path. When the bracket seat is in the non-abutting position, the position of the bracket seat does not intersect with the orthographic projection path of the end face of the plate cylinder.

[0010] By adopting the above technical solution, when the bracket seat slides within the mating path, it can form a supporting fit with the plate cylinder. When the separating path is switched to the abutting position, the bracket seat can slide from the mating path to the separating path; if the separating path is switched to the non-abutting position, the bracket seat located within the separating path will not intersect with the orthographic projection path of the end face of the plate cylinder, that is, the bracket seat can move to a position on one side of the plate cylinder. In this way, the bracket seat can be made not to interfere with the replacement operation of the sleeve by using a smaller space, making the structure have better feasibility and practicability.

[0011] Further set as: it includes a chute formed on the frame for the bracket seat to slide. The chute includes a fixed section corresponding to the mating path and a movable section rotatably provided on the frame and corresponding to the separating path.

[0012] By adopting the above technical solution, the bracket seat slides between the fixed section and the movable section to realize the position switching operation.

[0013] Further set as: the bracket seat realizes a sliding fit with the chute through a slider. The slider moves with the bracket seat through a locking component. The locking component includes a fastener connected to the slider for driving the slider to abut against the chute to form a lock.

[0014] By adopting the above technical solution, the fastener drives the slider to abut against the chute to lock the bracket seat. This method has a simple structure, low cost and convenient operation.

[0015] Further set as: a rotating hole for the plate cylinder to pass through is formed on the bracket seat.

[0016] By adopting the above technical solution, the detachable assembly between the bracket seat and the plate cylinder is realized through the set structure of the rotating hole.

[0017] Further configured as: the plate cylinder includes a mandrel, a sleeve sleeved on the mandrel, and a centering assembly for centering the sleeve along the length direction of the mandrel.

[0018] By adopting the above technical solution, the sleeve is sleeved on the mandrel, and the centering installation of the sleeve along the length direction of the mandrel is completed through the provided centering assembly, so as to ensure the precise assembly of the sleeve.

[0019] Further configured as: the centering assembly includes fixed roller plugs and movable roller plugs arranged on the mandrel and located at both ends of the sleeve, a pressing sleeve sleeved on the mandrel and located on the side of the movable roller plug opposite to the fixed roller plug, and a pressing member for driving the movable roller plug to move towards the fixed roller plug through the pressing sleeve.

[0020] By adopting the above technical solution, first sleeve the sleeve on the mandrel, then sleeve on the movable roller plug and the pressing sleeve and make the sleeve located between the movable roller plug and the fixed roller plug, and then drive the pressing sleeve and the movable roller plug to press the sleeve through the pressing member to complete the centering installation operation.

[0021] Further configured as: both opposite sides of the fixed roller plug and the movable roller plug are provided with tapered centering parts inserted into the sleeve.

[0022] By adopting the above technical solution, the setting of the tapered centering part can realize the concentric setting of the sleeve and the mandrel, so as to ensure the installation accuracy of the sleeve.

[0023] In summary, the present utility model has the following beneficial effects: the present utility model can realize the convenient replacement of the plate cylinder sleeve, so as to improve the replacement efficiency and quality of the plate cylinder sleeve. Description of the Drawings

[0024] Figure 1 It is a structural schematic diagram of the embodiment;

[0025] Figure 2 It is Figure 1 The enlarged view of part A in

[0026] Figure 3 It is a partial structural schematic diagram of the embodiment;

[0027] Figure 4 It is a partial cross-sectional view of the embodiment;

[0028] Figure 5 It is a partial structural explosion diagram of the embodiment.

[0029] In the figure: 1. Frame; 2. Bracket seat; 3. Plate cylinder; 31. Mandrel; 32. Sleeve; 33. Centering assembly; 331. Fixed roller plug; 332. Movable roller plug; 333. Tightening sleeve; 334. Tightening member; 4. Slide groove; 41. Fixed section; 42. Movable section; 5. Slide block; 6. Fastener; 7. Rotating hole; 8. Conical centering part. Specific embodiments

[0030] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0031] Refer to Figures 1 to 5 , a plate cylinder replacement mechanism, comprising: a frame 1; two bracket seats 2, arranged on the frame 1 and for installing the plate cylinder 3; the plate cylinder 3, configured to enable the replacement of the sleeve 32 and installed at both ends on the two bracket seats 2 respectively; one of the bracket seats 2 is movably matched with the frame 1 and has a matching position for supporting the plate cylinder 3 and a separating position separated from the plate cylinder 3, and the other bracket seat 2 is fixedly arranged on the frame 1; a locking assembly, configured to fix the bracket seat 2 in the matching position.

[0032] The movable matching relationship between the bracket seat 2 and the frame 1 includes a sliding match, and the sliding direction of the bracket seat 2 is parallel to the axis of the plate cylinder 3. The sliding path of the bracket seat 2 includes a matching path for forming the match between the bracket seat 2 and the plate cylinder 3 and a separating path for forming the separation between the bracket seat 2 and the plate cylinder 3. The separating path is movably arranged with an abutting position connecting the matching path and a non-abutting position. When the bracket seat 2 is in the non-abutting position, the position where the bracket seat 2 is located does not intersect with the orthographic projection path of the end face of the plate cylinder 3.

[0033] It includes a slide groove 4 formed on the frame 1 for the bracket seat 2 to slide, and the slide groove 4 includes a fixed section 41 corresponding to the matching path and a movable section 42 hinged to the frame 1 and corresponding to the separating path. The bracket seat 2 realizes sliding cooperation with the slide groove 4 through a slide block 5. The slide block 5 is driven by the locking assembly to move with the bracket seat 2. The locking assembly is a fastener 6 connecting the slide block 5 and used to drive the slide block 5 to abut against the slide groove 4 to form a lock. The fastener 6 is a bolt, and the bolt passes through the bracket seat 2 and is threadedly connected with the slide block 5. When the fixed section 41 and the movable section 42 are in the abutting position, the fixed section 41 and the movable section 42 are communicated with each other and allow the slide block 5 to slide between the two. A rotating hole 7 for the plate cylinder 3 to pass through is formed on the bracket seat 2.

[0034] The plate cylinder 3 includes a mandrel 31, a sleeve 32 sleeved on the mandrel 31, and a centering assembly 33 for centering the sleeve 32 along the length direction of the mandrel 31. The centering assembly 33 includes a fixed roller plug 331 and a movable roller plug 332 arranged on the mandrel 31 and at both ends of the sleeve 32, a pressing sleeve 333 sleeved on the mandrel 31 and on the side of the movable roller plug 332 opposite to the fixed roller plug 331, and a pressing member 334 for driving the movable roller plug 332 to move towards the fixed roller plug 331 through the pressing sleeve 333. The mandrel 31 limits the movement of the fixed roller plug 331 away from the movable roller plug 332, and the pressing member 334 is a pressing bolt that passes through the pressing sleeve 333 and is threadedly connected to the mandrel 31.

[0035] On the opposite sides of both the fixed roller plug 331 and the movable roller plug 332, a conical centering portion 8 inserted into the sleeve 32 is integrally provided. The fixed roller plug 331, the movable roller plug 332, and the conical centering portion 8 are all elastically C-shaped. When the fixed roller plug 331 and the movable roller plug 332 are squeezed by the pressing member 334, they can tighten the mandrel 31 and the sleeve 32 through the conical centering portion 8, so that the sleeve 32 rotates with the mandrel 31. The mandrel 31 and the rotating hole 7 on the bracket seat 2 fixed to the frame 1 are fixedly rotationally matched through bearings.

[0036] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A plate cylinder replacement mechanism, characterized in that, Comprising: A frame (1); Two bracket seats (2), arranged on the frame (1) for mounting a plate cylinder (3); the plate cylinder (3) is arranged to enable replacement of a sleeve (32) and is respectively mounted at both ends on the two bracket seats (2); one of the bracket seats (2) is movably engaged with the frame (1) and has a mating position for supporting the plate cylinder (3) and a separating position separated from the plate cylinder (3); a locking assembly is arranged to fix the bracket seat (2) in the mating position.

2. The plate cylinder replacement mechanism according to claim 1, wherein: The movable engagement relationship between the bracket seat (2) and the frame (1) includes a sliding fit, and the sliding direction of the bracket seat (2) is parallel to the axis of the plate cylinder (3).

3. The plate cylinder replacement mechanism according to claim 2, characterized in that: The sliding path of the bracket seat (2) includes a mating path for forming the mating of the bracket seat (2) and the plate cylinder (3) and a separating path for forming the separation of the bracket seat (2) and the plate cylinder (3). The separating path is movably provided with a connecting position connecting the mating path and a non-connecting position. When the bracket seat (2) is in the non-connecting position, the position of the bracket seat (2) does not intersect the orthographic projection path of the end face of the plate cylinder (3).

4. The plate cylinder replacement mechanism according to claim 3, characterized in that: It includes a chute (4) formed on the frame (1) for the bracket seat (2) to slide. The chute (4) includes a fixed section (41) corresponding to the mating path and a movable section (42) rotatably arranged on the frame (1) and corresponding to the separating path.

5. The plate cylinder replacement mechanism according to claim 4, characterized in that: The bracket seat (2) is slidably engaged with the chute (4) through a slider (5). The slider (5) moves with the bracket seat (2) through the locking assembly. The locking assembly includes a fastener (6) connecting the slider (5) for driving the slider (5) to abut against the chute (4) to form a lock.

6. The plate cylinder replacement mechanism according to claim 1, characterized in that: A rotating hole (7) for the plate cylinder (3) to pass through is formed on the bracket seat (2).

7. The plate cylinder replacement mechanism according to claim 1, wherein: The plate cylinder (3) includes a core shaft (31), a sleeve (32) sleeved on the core shaft (31), and a centering assembly (33) for centering the sleeve (32) along the length direction of the core shaft (31).

8. The plate cylinder replacement mechanism according to claim 7, characterized in that: The centering assembly (33) includes a fixed roller plug (331) and a movable roller plug (332) arranged on the core shaft (31) and at both ends of the sleeve (32), a pressing sleeve (333) sleeved on the core shaft (31) and on the side of the movable roller plug (332) opposite to the fixed roller plug (331), and a pressing member (334) for driving the movable roller plug (332) to move towards the fixed roller plug (331) through the pressing sleeve (333).

9. The plate cylinder replacement mechanism according to claim 8, characterized in that: Conical centering parts (8) inserted into the sleeve (32) are provided on the opposite sides of the fixed roller plug (331) and the movable roller plug (332).

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