Novel blanket cylinder with balanced printing pressure

Abstract

The utility model discloses a novel blanket cylinder with balanced printing pressure, which belongs to the technical field of printing, and comprises a blanket cylinder split component, two rubber rolling shafts are mounted in the blanket cylinder split component, a wrapping lining is arranged in the blanket cylinder split component, and the two rubber rolling shafts are mounted in the wrapping lining. The two rubber rolling shafts are arranged on the first cylinder bearers and the second cylinder bearers respectively, spring holes are formed in the two rubber rolling shafts respectively, rubber blanket clamping plate assemblies are installed in the two spring holes respectively, and the outer wall of the rubber cylinder body is rotationally connected with a plate cylinder. The first cylinder bearers and the second cylinder bearers make contact with the butt-joint pillow, the split type structure enables assembling operation to be simpler and more convenient, the design of mutual contact can partially absorb and eliminate vibration, stability of machine operation and uniformity of pressure are guaranteed, the service life of the machine can be effectively prolonged through special materials, and the operation and maintenance cost of the printing machine is low.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, and in particular to a novel rubber roller with balanced printing pressure. Background Technology

[0002] Printing, as an ancient and important means of information dissemination and product decoration, still occupies a key position in modern society. From traditional book and newspaper printing to today's commercial advertising, exquisite packaging and high-end art reproduction, the requirements for printing quality are increasing day by day. In the printing process, printing pressure directly affects the transfer of ink, the clarity of images and text and the accuracy of colors. If the printing pressure is uneven, it will lead to a series of printing quality problems.

[0003] In traditional printing machines, the rollers at both ends of the rubber cylinder and the printing plate cylinder are non-contact. The working surfaces between the rubber cylinder and the printing plate cylinder are in pressure contact. During the printing process, because the rollers are not in contact, the printing pressure is lost at the notch in the cylinder. The cylinder will descend under its own weight, and a vibration will occur once every revolution. Due to the unstable printing pressure, streaks and ghosting are likely to appear in the printed matter, resulting in low printing accuracy and affecting the printing quality.

[0004] Therefore, there is an urgent need to provide a new type of rubber roller with uniform printing pressure to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a new type of rubber roller with uniform printing pressure.

[0006] To solve the above-mentioned technical problems, the present invention provides a novel rubber roller with balanced printing pressure, comprising a rubber roller split assembly. The rubber roller split assembly includes a rubber roller body, the inside of which has two insertion slots. Roller bolster one and roller bolster two are respectively installed on both sides of the rubber roller body. Roller bolster one and roller bolster two each have two mounting holes inside. Fastening screws are rotatably connected to both sides of the rubber roller body. Two rubber rolls are installed inside the rubber roller split assembly. The rubber roller split assembly has a liner inside. Spring holes are provided inside both rubber rolls. Rubber cloth clamping plate assemblies are installed inside both spring holes.

[0007] The outer wall of the rubber roller is rotatably connected to the printing plate roller.

[0008] The present invention is further configured such that the outer wall of the rubber roller is wrapped with a rubber sheet.

[0009] Through the above technical solution, the rubber blanket has unique chemical properties, good affinity for ink, and a relatively flat and elastic surface. During the rotation of the rubber roller, the ink can be evenly distributed on its surface.

[0010] The present invention is further configured such that: both ends of the rubber sheet are connected to clamps, and both clamps are inserted into corresponding insertion slots.

[0011] The above technical solution involves continuously adjusting the position of the clamp in the insertion slot to tighten and fix the rubber sheet wrapped around the circumference of the rubber roller, thereby ensuring the stability and durability of the rubber sheet.

[0012] The present invention is further configured such that a notch scaling device is installed at the notch of the rubber roller body.

[0013] The above technical solution increases the circumferential printing surface of the rubber roller, thus ensuring that the total diameter of the rubber roller remains unchanged after being wrapped with rubber sheet, while still meeting the needs of packaging printing and further improving the product's ability to undertake business.

[0014] The present invention is further configured such that both the first and second rollers are separate from the rubber roller body.

[0015] The modular design simplifies assembly. If the roller is worn or damaged, such as if dents appear on its surface affecting the uniformity of printing pressure, the damaged roller can be removed and replaced instead of the entire rubber roller. This not only reduces maintenance costs but also shortens maintenance time and minimizes the impact of equipment downtime on production.

[0016] The present invention is further configured such that both the first and second rollers are made of special materials that are wear-resistant and have good rigidity after precision machining and special treatment.

[0017] Through the above technical solutions, special materials can effectively extend their service life, resulting in lower operating and maintenance costs for the printing press and a longer service life for the device.

[0018] The present invention is further configured such that: the two sides of the printing plate cylinder are equipped with docking pillows corresponding to roller pillow one and roller pillow two, and roller pillow one and roller pillow two are in contact with the docking pillows.

[0019] Through the above technical solution, this design can partially absorb and eliminate vibration, ensuring the smooth operation of the machine and the uniformity of pressure.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. This utility model uses a split structure to connect the roller and the rubber roller body, with the roller and the mating roller in contact with each other. The split structure makes assembly easier. For example, if dents appear on the surface of the roller and affect the uniformity of printing pressure, only the damaged roller needs to be disassembled and replaced, instead of replacing the entire rubber roller body. This not only reduces maintenance costs but also shortens maintenance time and reduces the impact of equipment downtime on production. The mutual contact design can partially absorb and eliminate vibration, ensuring the smooth operation of the machine and the uniformity of pressure. Moreover, the special materials can effectively extend its service life, resulting in low operating and maintenance costs for the printing press.

[0022] 2. This utility model increases the circumferential printing surface of the rubber roller by installing a notch scaling device at the notch of the rubber roller body. This allows the total diameter of the rubber roller body to remain unchanged after being wrapped with rubber cloth, thus meeting the needs of packaging printing and further improving the product's ability to undertake business. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the rubber roller body structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the rubber roller assembly.

[0025] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0026] Figure 4 This is a schematic diagram of the structure of the new type of roller pillow one and roller pillow two and the docking pillow.

[0027] In the diagram: 1. Rubber roller body; 2. Insertion groove; 3. Roller bolster one; 4. Roller bolster two; 5. Mounting hole; 6. Fastening screw; 7. Rubber roll shaft; 8. Liner; 9. Spring hole; 10. Rubber cloth clamping plate assembly; 11. Printing plate cylinder. Detailed Implementation

[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0029] Please see Figure 1A novel rubber roller with balanced printing pressure includes a split rubber roller assembly. The split assembly comprises a rubber roller body 1, the outer wall of which is covered with a rubber blanket. The rubber blanket possesses unique chemical properties, exhibiting excellent affinity for ink. Furthermore, the surface of the rubber blanket is relatively flat and possesses a certain degree of elasticity, allowing for uniform ink distribution on its surface during the rotation of the rubber roller body 1. A notch-expansion mechanism is installed at the notch of the rubber roller body 1, increasing the circumferential printing surface area. This ensures that the total diameter of the rubber roller body 1 remains constant after being wrapped with the rubber blanket, meeting the needs of packaging printing and further enhancing the product's ability to handle various orders. The interior of the rubber roller body 1 has two insertion slots 2. Clamps are connected to both ends of the rubber blanket, and both clamps are inserted into corresponding insertion slots 2. By continuously adjusting the position of the clamps in the insertion slots 2, the rubber blanket wrapped around the circumference of the rubber roller body 1 is tightened and fixed, ensuring the stability and durability of the rubber blanket. The rubber roller cylinder 1 has two roller pads, 3 and 4, installed on its two sides respectively. Roller pads 3 and 4 are separate from the rubber roller cylinder 1, making assembly easier. If roller pads 3 and 4 are worn or damaged, or if dents appear on their surfaces affecting the uniformity of printing pressure, only the damaged roller pad 3 or 4 needs to be removed and replaced, instead of replacing the entire rubber roller cylinder 1. This reduces maintenance costs and time, minimizing downtime impact on production. Roller pads 3 and 4 each have two mounting holes 5 inside. Both sides of the rubber roller cylinder 1 are rotatably connected with fastening screws 6. Two insertion slots 2 inside the rubber roller cylinder 1 provide precise positioning for the installation of other components, ensuring the relative positional accuracy between parts. The fastening screws 6 enhance the stability of the entire rubber roller structure and ensure a tight connection between components, preventing loosening or detachment.

[0030] like Figure 2 - Figure 4As shown, the rubber roller split assembly has two rubber rolls 7 installed inside, and a liner 8 inside. Each of the two rubber rolls 7 has a spring hole 9 inside, and a rubber blanket clamping plate assembly 10 is installed inside each of the two spring holes 9. A spring is installed inside the spring hole 9, and the spring is sleeved on the connecting rod of the rubber blanket clamping plate assembly 10. When the connecting rod is under force, it can move inside the spring hole 9. A printing plate cylinder 11 is rotatably connected to the outer wall of the rubber roller body 1. Corresponding mating pillows 3 and 4 are installed on both sides of the printing plate cylinder 11. This design can partially absorb and eliminate vibration, ensuring the smooth operation of the machine and the uniformity of pressure. Furthermore, 3 and 4 are in contact with the mating pillows. 3 or 4 are made of special wear-resistant and rigid materials that have undergone precision machining and special treatment. These special materials can effectively extend their service life, resulting in low operating and maintenance costs for the printing press.

[0031] In use, after the operator has completed the installation of the separate rubber roller assembly and related auxiliary components, the printing plate roller 11 is activated to transfer the ink and images on the printing plate roller 11 to the rubber blanket installed on the rubber roller body 1. The ink is then transferred from the rubber blanket on the rubber roller body 1 to the substrate to be printed. When the rubber blanket becomes loose or excessively tight, the position of the clamp in the insertion slot 2 is continuously adjusted to tighten and fix the rubber blanket wrapped around the circumference of the rubber roller body 1 until the rubber blanket reaches a normal state. When it is necessary to change the pressure between the two rollers, the center distance does not need to be adjusted; the thickness of the lining 8 of the two rollers is changed instead.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A novel rubber roller for even printing pressure, comprising a split rubber roller assembly, characterized in that: The rubber roller split assembly includes a rubber roller body (1), which has two insertion slots (2) inside. Roller bolster one (3) and roller bolster two (4) are respectively installed on both sides of the rubber roller body (1). Roller bolster one (3) and roller bolster two (4) have two mounting holes (5) inside. Fastening screws (6) are rotatably connected to both sides of the rubber roller body (1). Two rubber roll shafts (7) are installed inside the rubber roller split assembly. The rubber roller split assembly has a liner (8) inside. Spring holes (9) are opened inside the two rubber roll shafts (7). Rubber cloth clamping plate assemblies (10) are installed inside the two spring holes (9). The outer wall of the rubber roller body (1) is rotatably connected to the printing plate roller (11).

2. The novel rubber roller with uniform printing pressure according to claim 1, characterized in that: The outer wall of the rubber roller cylinder (1) is covered with rubber cloth.

3. A novel rubber roller for uniform printing pressure according to claim 1, characterized in that: Both ends of the rubber sheet are connected to clamps, and both clamps are inserted into the corresponding insertion slots (2).

4. A novel rubber roller for uniform printing pressure according to claim 1, characterized in that: The rubber roller body (1) is equipped with a notch scaling device at the notch.

5. A novel rubber roller for uniform printing pressure according to claim 1, characterized in that: Both roller bolster one (3) and roller bolster two (4) are separate from the rubber roller body (1).

6. A novel rubber roller for uniform printing pressure according to claim 5, characterized in that: Both roller ram one (3) and roller ram two (4) are made of finely processed, wear-resistant and rigid materials.

7. A novel rubber roller for uniform printing pressure according to claim 6, characterized in that: The printing plate cylinder (11) is equipped with mating pillows on both sides corresponding to roller pillow one (3) and roller pillow two (4), and roller pillow one (3) and roller pillow two (4) are in contact with each other.

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