Roller calibration device for paper product printing machine

Abstract

The utility model relates to the field of printing machines, and discloses a roller calibration device for a paper product printing machine. The plate cylinder is mounted on the rack and used for bearing a plate and rotating in the printing process; and the calibration mechanism is connected to the rack, is connected with the plate cylinder and is used for calibrating the position of the plate cylinder on the rack. According to the utility model, the adjusting seat driven by the two power sources can be automatically and simultaneously close to or far away from the plate cylinder, so that the position of the plate cylinder can be quickly adjusted, the adjusting efficiency is improved, the high-precision calibration of the plate cylinder on the rack is ensured, the accurate alignment between the plate cylinder and the impression cylinder is ensured, and the production efficiency is improved. The dislocation condition between the plate cylinder and the impression cylinder is reduced through accurate alignment and calibration, and the printing quality of printed matter is improved.

Description

Technical Field

[0001] The utility model relates to the field of printing presses, in particular to a roller calibration device for a paper product printing press. Background Art

[0002] A paper printing press is a mechanical equipment used to produce various paper printed products. In the paper printing industry, the performance of the printing press is directly related to the quality and efficiency of the printed products. The plate cylinder is one of the core components of the printing press. The accuracy and stability of its position are crucial to ensuring the quality of the printed products.

[0003] After searching, the publication number CN208497956U discloses a calibration and adjustment device for the roller of a tape printing machine, including axial seats installed at both ends of the printing roller, the axial seats at one end are connected with a push-pull mechanism for position calibration, and a shock-absorbing assembly is installed at the bottom of the axial seat, the push-pull mechanism includes a transmission shaft passing through the axial seat, the outer end of the transmission shaft is connected to a power rod through a buffer seat, the outer end of the power rod is connected to a sealing tube through a piston pad, the outer end of the sealing tube is connected to a metal sleeve, the metal sleeve is connected to an electric lead screw, a sliding groove is also provided inside the axial seat, upper and lower sliding blocks are provided inside the sliding groove, the upper and lower ends of the upper and lower sliding blocks are connected to sliding plates through hydraulic rods, and the inner side of the upper and lower sliding blocks is hinged to a roller shaft connected to the printing roller through a hinge seat.

[0004] In existing paper printing machines, the plate cylinder often needs to be manually adjusted after replacement. Manual adjustment of the plate cylinder position is not only inefficient, but also difficult to ensure adjustment accuracy. It is difficult to ensure accurate alignment between the plate cylinder and the impression cylinder. Misalignment will directly affect the printing quality of the printed product. In the manual adjustment process, uneven pressure distribution between the cylinder and the plate is also prone to occur. Summary of the invention

[0005] In order to solve the above problems, the utility model is implemented through the following technical solutions:

[0006] A roller calibration device for a paper product printing press, comprising:

[0007] frame;

[0008] A printing plate cylinder, mounted on the frame, for carrying the printing plate and rotating during the printing process;

[0009] A calibration mechanism, connected to the frame and connected to the plate cylinder, for calibrating the position of the plate cylinder on the frame;

[0010] The calibration mechanism includes two mounting seats and two adjustment seats, wherein the two mounting seats are installed on the frame and are symmetrically arranged, the printing plate cylinder is arranged between the two mounting seats, and the two adjustment seats are respectively connected to the two mounting seats and are arranged to approach or move away from each other at the same time for calibrating the position of the printing plate cylinder.

[0011] The calibration mechanism also includes:

[0012] Two calibration plates, respectively mounted at one end of the two adjustment seats, the two calibration plates being used to locate the position of the plate cylinder;

[0013] Two rotating plates are respectively connected to one side of the two calibration plates, and both ends of the plate cylinder are respectively connected to the two rotating plates. The rotating plates are arranged to rotate on the calibration plates to follow the rotation of the impression cylinder.

[0014] An adjustment groove is formed at one end of the two mounting seats that are close to each other, and the adjustment seats are connected in the adjustment groove.

[0015] The calibration mechanism also includes:

[0016] Two power sources are respectively connected to the two mounting seats, and the power shafts of the power sources are connected to the adjustment seats to provide moving power for the adjustment seats.

[0017] The mounting base comprises:

[0018] The assembly seat is arranged in the adjusting groove, and the plate cylinder is connected to the assembly seat and is used to support the position of the plate cylinder in the adjusting groove.

[0019] The printing plate cylinder comprises:

[0020] Two shaft rods are respectively connected to the two ends of the plate cylinder; an assembly groove is formed at one end of the assembly seat close to the plate cylinder, and the shaft rod is connected in the assembly groove.

[0021] The mounting base also includes:

[0022] A fixing rod, one end of which is connected to the side wall of the adjusting groove, and the other end of which is connected to the assembly seat, the adjusting seat is arranged to move on the fixing rod, and the fixing rod is used to provide support for the adjusting seat when it moves;

[0023] An elastic member, one end of which is connected to the side wall of the adjusting groove, and the other end of which is connected to the assembly seat, is used to provide a restoring force for the assembly seat at the initial position.

[0024] Also includes:

[0025] A bottom plate, connected to the bottom of the rack, for providing support and fixation for the rack;

[0026] The impression cylinder is connected to the frame and arranged above the plate cylinder.

[0027] The cross-sectional shapes of the adjusting seat and the rotating plate are both circular.

[0028] The utility model provides a roller calibration device for a paper product printing machine. Compared with the prior art, it has the following beneficial effects:

[0029] 1. The adjustment seat driven by two power sources can automatically and simultaneously move closer to or farther away from the plate cylinder, thereby realizing rapid adjustment of the plate cylinder position, improving adjustment efficiency, ensuring high-precision calibration of the plate cylinder on the frame, and ensuring accurate alignment between the plate cylinder and the impression cylinder.

[0030] 2. Accurate alignment and calibration reduce the misalignment between the plate cylinder and the impression cylinder, improve the printing quality of the printed product, reduce the uneven pressure distribution between the cylinder and the plate, and further improve the uniformity and consistency of the printed product.

[0031] 3. The assembly seat and fixing rod in the mounting seat provide stable support for the plate cylinder, ensuring the stability of the cylinder during rotation. The replacement and adjustment process of the plate cylinder is simpler and more intuitive, reducing the difficulty of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the three-dimensional structure proposed by the utility model.

[0033] Figure 2 The utility model is a schematic diagram of the assembly structure of the printing plate cylinder and the calibration mechanism.

[0034] Figure 3 This is a schematic cross-sectional structure diagram of the printing plate cylinder and calibration mechanism proposed by the utility model.

[0035] Figure 4 This is a schematic diagram of the assembly structure of the calibration mechanism proposed in the utility model.

[0036] The reference numerals in the figure are:

[0037] 1. Bottom plate;

[0038] 2. Rack;

[0039] 3. Plate cylinder; 301. Shaft;

[0040] 4. Impression roller;

[0041] 5. Calibration mechanism; 501. Mounting seat; 502. Adjustment seat; 503. Calibration plate; 504. Rotation plate; 505. Assembly seat; 506. Fixing rod; 507. Elastic member; 508. Power source. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0043] Reference Figure 1-Figure 4 A roller calibration device for a paper product printing machine comprises: a frame 2; a plate cylinder 3, which is mounted on the frame 2 and used to carry a printing plate and rotate during printing; a calibration mechanism 5, which is connected to the frame 2 and connected to the plate cylinder 3, and used to calibrate the position of the plate cylinder 3 on the frame 2; the calibration mechanism 5 comprises two mounting seats 501 and two adjusting seats 502, wherein the two mounting seats 501 are mounted on the frame 2 and are symmetrically arranged, the plate cylinder 3 is arranged between the two mounting seats 501, and the two adjusting seats 502 are respectively connected to the two mounting seats 501 and are arranged to be close to or away from each other at the same time, and used to calibrate the position of the plate cylinder 3; two calibration plates 503 are respectively mounted on At one end of the two adjustment seats 502, two calibration plates 503 are used to locate the position of the plate cylinder 3; two rotating plates 504 are respectively connected to one side of the two calibration plates 503, and the two ends of the plate cylinder 3 are respectively connected to the two rotating plates 504. The rotating plates 504 are configured to rotate on the calibration plates 503 to rotate with the impression cylinder 4. Through two symmetrically arranged mounting seats 501 and adjustable adjustment seats 502, high-precision calibration of the plate cylinder 3 on the frame 2 can be achieved. Driven by the power source 508, the adjustment seat 502 can simultaneously approach or move away from the plate cylinder 3, ensuring that the position of the plate cylinder 3 on the frame 2 is more accurate, thereby ensuring the accuracy and consistency of printing.

[0044] Reference Figure 3 An adjustment groove is formed at one end of the two mounting seats 501 that are close to each other, and the adjustment seat 502 is connected in the adjustment groove.

[0045] Reference Figure 2 and Figure 3 Two power sources 508 are connected to the two mounting seats 501 respectively. The power shaft of the power source 508 is connected to the adjustment seat 502 to provide moving power for the adjustment seat 502. The power source 508 adopts a cylinder and can also adopt a linear motor.

[0046] Reference Figure 3 and Figure 4The mounting seat 501 includes: an assembly seat 505, which is arranged in the adjustment groove, and the plate cylinder 3 is connected to the assembly seat 505, and is used to support the position of the plate cylinder 3 in the adjustment groove; a fixed rod 506, one end of which is connected to the side wall of the adjustment groove, and the other end is connected to the assembly seat 505, and the adjustment seat 502 is arranged to move on the fixed rod 506, and the fixed rod 506 is used to provide support for the adjustment seat 502 during movement; an elastic member 507, one end of which is connected to the side wall of the adjustment groove, and the other end is connected to the assembly seat 505, and is used to provide the assembly seat 505 with a restoring force of the initial position; the plate cylinder 3 includes: two shaft rods 301, which are respectively connected to the two ends of the plate cylinder 3, and the assembly seat 505 is formed with an assembly groove at one end close to the plate cylinder 3, and the shaft rod 301 is connected in the assembly groove, and the mounting seat 5 The assembly seat 505 and the fixed rod 506 in 01 provide stable support for the plate cylinder 3. The assembly seat 505 is connected to the shaft rod 301 of the plate cylinder 3 through the assembly groove to ensure the stability of the cylinder during rotation. The fixed rod 506 not only provides support for the adjustment seat 502 during movement, but also increases the structural stability of the entire device. When replacing the plate cylinder 3, the power source 508 drives the adjustment seat 502 to move away from the plate cylinder 3, and the restriction on the plate cylinder 3 is cancelled. The plate cylinder 3 can be moved left and right. After moving to the left first, the shaft rod 301 on the right can slide out of the assembly groove, and then move to the right to pull the shaft rod 301 on the left out of the assembly groove. The plate cylinder 3 is more convenient to replace. The elastic member 507 adopts an alloy spring, and can also adopt a stainless steel spring.

[0047] Reference Figure 1 , the bottom plate 1 is connected to the bottom of the frame 2, and is used to provide support and fixation for the frame 2; the impression cylinder 4 is connected to the frame 2 and is arranged above the plate cylinder 3. The cross-sectional shapes of the adjustment seat 502 and the rotating plate 504 are both circular. The design of the bottom plate 1 provides solid support and fixation for the entire frame 2, enhances the overall stability of the device, and the precise matching of the impression cylinder 4 and the plate cylinder 3 ensures the stability and consistency of the printing process. The circular rotating plate 504 can facilitate the connection of the shaft rod 301, and can also limit the position of the shaft rod 301 to ensure that the plate cylinder 3 does not move during use.

[0048] The two power sources 508 are started to drive the adjustment seat 502 to move away from the plate cylinder 3, and the fixed restriction on the plate cylinder 3 is cancelled. The plate cylinder 3 is gently moved to the left, so that the right shaft 301 slides out of the assembly slot, and then the plate cylinder 3 is moved to the right, and the left shaft 301 is pulled out of the assembly slot to complete the disassembly of the plate cylinder 3. The shafts 301 at both ends of the new plate cylinder 3 are respectively aligned with the assembly slots, and the shafts 301 are carefully inserted into the assembly slots to ensure that the shafts 301 are tightly fitted with the assembly slots. The two power sources 508 are started again to drive the adjustment seat 502 to move in the direction of the plate cylinder 3 until the rotating plate 504 on the calibration plate 503 is in close contact with the plate cylinder 3 to complete the preliminary positioning. The outputs of the two power sources 508 are synchronously adjusted to make the adjustment seat 502 move synchronously and evenly in the direction of the plate cylinder 3. The position of the plate cylinder 3 can be calibrated by the synchronous approach of the two adjustment seats 502.

[0049] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0050] The adjustment seat 502 driven by two power sources 508 can automatically and simultaneously approach or move away from the plate cylinder 3, thereby realizing rapid adjustment of the position of the plate cylinder 3, improving the adjustment efficiency, ensuring high-precision calibration of the plate cylinder 3 on the frame 2, and ensuring accurate alignment between the plate cylinder 3 and the impression cylinder 4.

[0051] Precise alignment and calibration reduce the misalignment between the plate cylinder 3 and the impression cylinder 4, improve the printing quality of the printed product, reduce the problem of uneven pressure distribution between the cylinder and the printing plate, and further improve the uniformity and consistency of the printed product.

[0052] The assembly seat 505 and the fixing rod 506 in the mounting seat 501 provide stable support for the plate cylinder 3, ensuring the stability of the cylinder during rotation, and the replacement and adjustment process of the plate cylinder 3 is simpler and more intuitive, reducing the difficulty of operation.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A roller calibration device for a paper product printing press, characterized in that: include: Rack (2); A printing plate cylinder (3), mounted on the frame (2), for carrying the printing plate and rotating during the printing process; A calibration mechanism (5), connected to the frame (2) and connected to the printing plate cylinder (3), and used for calibrating the position of the printing plate cylinder (3) on the frame (2); The calibration mechanism (5) comprises two mounting seats (501) and two adjustment seats (502), wherein the two mounting seats (501) are mounted on the frame (2) and are symmetrically arranged, the printing plate cylinder (3) is arranged between the two mounting seats (501), and the two adjustment seats (502) are respectively connected to the two mounting seats (501) and are arranged to approach or move away from each other at the same time, so as to calibrate the position of the printing plate cylinder (3).

2. The roller calibration device for a paper product printing press according to claim 1, characterized in that: The calibration mechanism (5) further comprises: Two calibration plates (503) are respectively mounted on one end of the two adjustment seats (502), and the two calibration plates (503) are used to locate the position of the printing plate cylinder (3); The two rotating plates (504) are respectively connected to one side of the two calibration plates (503), and the two ends of the printing plate cylinder (3) are respectively connected to the two rotating plates (504). The rotating plates (504) are arranged to rotate on the calibration plates (503) to follow the rotation of the impression cylinder (4).

3. The roller calibration device for a paper product printing press according to claim 1, characterized in that: An adjustment groove is formed at one end of the two mounting seats (501) that is close to each other, and the adjustment seat (502) is connected in the adjustment groove.

4. The roller calibration device for a paper product printing press according to claim 1, characterized in that: The calibration mechanism (5) further comprises: Two power sources (508) are respectively connected to the two mounting seats (501); a power shaft of the power source (508) is connected to the adjustment seat (502) to provide moving power for the adjustment seat (502).

5. The roller calibration device for a paper product printing press according to claim 3, characterized in that: The mounting seat (501) comprises: The assembly seat (505) is arranged in the adjustment groove, and the printing plate cylinder (3) is connected to the assembly seat (505) and is used to support the position of the printing plate cylinder (3) in the adjustment groove.

6. The roller calibration device for a paper product printing press according to claim 5, characterized in that: The printing plate cylinder (3) comprises: Two shaft rods (301) are respectively connected to the two ends of the plate cylinder (3); an assembly groove is formed at one end of the assembly seat (505) close to the plate cylinder (3), and the shaft rod (301) is connected in the assembly groove.

7. The roller calibration device for a paper product printing press according to claim 5, characterized in that: The mounting seat (501) further comprises: A fixing rod (506), one end of which is connected to the side wall of the adjusting groove, and the other end of which is connected to the assembly seat (505), the adjusting seat (502) is configured to move on the fixing rod (506), and the fixing rod (506) is used to provide support for the adjusting seat (502) when it moves; The elastic member (507) has one end connected to the side wall of the adjustment groove and the other end connected to the assembly seat (505), and is used to provide a restoring force for the assembly seat (505) to return to its initial position.

8. The roller calibration device for a paper product printing press according to claim 1, characterized in that: Also includes: A bottom plate (1) connected to the bottom of the frame (2) and used to provide support and fixation for the frame (2); The impression cylinder (4) is connected to the frame (2) and is arranged above the printing plate cylinder (3).

9. The roller calibration device for a paper product printing press according to claim 2, characterized in that: The cross-sectional shapes of the adjustment seat (502) and the rotating plate (504) are both circular.

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