Meter frame for detecting circle run-out of mandril shaft of color printing machine

Abstract

A gauge stand for detecting the shaft circle run-out of a core rod of a color printing machine comprises a fixed base, the center of one side of the fixed base is provided with a first mounting through hole, the center of the end part corresponding to the first mounting through hole is provided with an adjusting gap communicated with the first mounting through hole, and the end part is radially provided with a first locking hole communicated with the adjusting gap and a first locking bolt; a groove with threads is formed in the lower portion of one side face of the fixed base in the length direction. A plurality of adjusting through holes are formed in the side surface of the fixed base above the groove along the length direction, and step surfaces are arranged at the upper and lower ends of the side surface; the movable base comprises a sliding block and a fixed block, and the outer side face of the sliding block is provided with a strip-shaped hole and a fixing bolt; an accommodating groove and a nut are arranged at the outer side end of the inner side surface of the sliding block; the fixing block is arranged perpendicular to the axial direction of the sliding block, a second installation through hole is formed in one side of the fixing block, an adjusting gap communicated with the second installation through hole is formed in the center of the end of one side of the fixing block, and a second locking hole and a second locking bolt which are perpendicular to and communicated with the adjusting gap are arranged at the end, corresponding to the adjusting gap, of the fixing block.

Description

Technical Field

[0001] This utility model relates to the field of color printing equipment for aluminum cans, specifically to a gauge for detecting the circular runout of the printing press's core rod shaft. Background Technology

[0002] In the field of aluminum can printing equipment manufacturing, the precise detection of the mandrel support arm's circular runout parameter is a core technological step to ensure the assembly accuracy of the equipment. This parameter directly determines the positioning accuracy of the printing color registration system, and the accuracy of its detection data will directly affect the registration accuracy of the printed pattern and the finished product qualification rate.

[0003] The current circular runout detection technology used in the industry has the following technical defects:

[0004] 1. Regarding the reference positioning system, the traditional lever-type dial indicator frame has an inherent defect of insufficient structural rigidity. Its three-point contact support structure is prone to micro-displacement during dynamic testing, causing the measurement reference to drift. Especially under equipment vibration conditions, this error value can be amplified, resulting in insufficient accuracy.

[0005] 2. Regarding the testing operation process, existing technology requires at least three operators working together: one person rotates the mandrel support arm, another adjusts the printing depth, and a third person simultaneously observes and adjusts the dial readings. A single complete testing cycle takes 120-150 minutes, and due to subjective errors in manual interpretation, 3-4 verification tests are often required, resulting in non-productive downtime exceeding 40% during equipment debugging. Due to the diversity of market demands, production lines need to frequently switch between different can models, involving equipment changeover operations. Taking a two-piece aluminum can color printing machine as an example, the circular runout of the mandrel support arm needs to be detected during equipment changeover. For production lines with line speeds reaching 3000 CPM, changeover efficiency directly affects production quality and order delivery. Therefore, improving changeover efficiency is particularly important.

[0006] In summary, traditional meter mounting devices have several shortcomings in application: their design is not standardized enough, resulting in systematic errors and insufficient accuracy. Traditional mounting spaces are limited, restricting adjustments and complicating the installation process, leading to high labor intensity and low efficiency. These technical deficiencies result in low equipment commissioning success rates and increased maintenance time, necessitating the development of new meter mounting devices. Utility Model Content

[0007] The purpose of this utility model is to provide a frame for detecting the circular runout of the printing press mandrel shaft. It adopts a standardized and modular design, which can be combined and disassembled as needed. It significantly improves the installation efficiency and has the characteristics of simple structure, quick installation, and strong adaptability, making it suitable for detecting the circular runout of the printing press mandrel.

[0008] To achieve the above objectives, the technical solution of this utility model is as follows:

[0009] A gauge holder for detecting the circular runout of a printing press mandrel shaft, comprising:

[0010] The fixed base is a cuboid with a first mounting through hole at the center of one side. An adjustment slot communicating with the first mounting through hole is provided at the center of the end corresponding to the first mounting through hole. A first locking hole and a first locking bolt communicating with the adjustment slot are provided radially at the end corresponding to the adjustment slot. A threaded groove is provided on the lower part of one side of the fixed base along the length direction. Several adjustment through holes are provided on the side of the fixed base above the groove along the length direction. The upper and lower ends of this side are provided with stepped surfaces along the length direction.

[0011] The movable base includes a slider and a fixing block disposed on one side of the upper end face of the slider; the outer side of the slider has a strip-shaped hole along its length direction corresponding to the adjustment through hole of the fixing base, and a fixing bolt is disposed therein; the upper and lower ends of the inner side of the slider have guide strips that mate with the stepped surfaces of the upper and lower ends of one side of the fixing base along its length direction, and the outer end of the inner side has a receiving groove, in which a nut mates with the threaded groove at the lower part of one side of the fixing base, and is locked in the receiving groove by a pressure plate; the fixing block is disposed perpendicular to the axial direction of the slider, and a second mounting through hole is disposed on one side of the fixing block along its radial direction, and an adjustment gap communicating with the second mounting through hole is disposed at the center of the end of the fixing block corresponding to the second mounting through hole, and a second locking hole and a second locking bolt are disposed at the end of the fixing block corresponding to the adjustment gap, which are perpendicular to and communicate with the adjustment gap.

[0012] Preferably, the cross-section of the threaded groove on the lower part of one side of the fixed base is semi-circular, and correspondingly, the cross-section of the receiving groove on the inner side of the slider is semi-circular.

[0013] Preferably, a third locking hole and a corresponding locking screw are provided on one side wall of the first mounting through hole on the fixed base.

[0014] The beneficial effects of this utility model are:

[0015] This utility model utilizes a "no can, no print" sensor mounting support rod, i.e., a fixed mounting reference shaft, to mount the dial indicator holder onto the fixed mounting reference shaft. Installation is convenient, and the clamp design ensures a sturdy, wobble-free fit. During use, the highest detection point at the 12 o'clock position on the mandrel disc can be quickly located. The dial indicator probe is perpendicular to the mandrel support arm shaft, meeting the requirements for dial indicator testing.

[0016] The operation process of the meter holder described in this utility model is simple. After simple training, the main technical operators can master the key technical points. In practice, three people are required to work together: one person rotates the machine, one person adjusts the printing stroke height, and one person reads the meter data and makes adjustments. The entire process of adjusting the circular runout detection can be completed in just one hour.

[0017] This utility model adopts a standardized and modular design, which is reasonable, compact, and simple in appearance. It can be combined and disassembled as needed, which significantly improves the installation efficiency and is suitable for detecting the circular runout of the printing press core rod.

[0018] This invention is easy to maintain, with a design that prioritizes ease of upkeep, facilitating daily maintenance and cleaning for users. Optimized design ensures the stability of the device during use.

[0019] This invention can adapt to desktop devices of different sizes and shapes, thus improving the versatility of the device. Attached Figure Description

[0020] Figure 1 Three-dimensional representation of the present utility model Figure 1 ;

[0021] Figure 2 Three-dimensional representation of the present utility model Figure 2 ;

[0022] Figure 3 Three-dimensional breakdown of the embodiments of this utility model Figure 1 ;

[0023] Figure 4 Three-dimensional breakdown of the embodiments of this utility model Figure 2 ;

[0024] Figure 5 Three-dimensional breakdown of the embodiments of this utility model Figure 3 ;

[0025] Figure 6 This is a schematic diagram illustrating the usage state of an embodiment of the present utility model. Detailed Implementation

[0026] See Figures 1-6 The instrument holder for detecting the circular runout of the printing press mandrel shaft according to this utility model includes:

[0027] The fixed base 1 is a cuboid with a first mounting through hole 11 at the center of one side. An adjustment slot 12 communicating with the first mounting through hole 11 is provided at the center of the end of the first mounting through hole 11. A first locking hole 13 and a first locking bolt 14 communicating with the adjustment slot 12 are provided radially at the end of the adjustment slot 12. A threaded groove 15 is provided on the lower part of one side of the fixed base 1 along the length direction. Several adjustment through holes 16 are provided on the side of the fixed base 1 above the groove 15 along the length direction. Stepped surfaces 17 are provided at the upper and lower ends of the side along the length direction.

[0028] The movable base 2 includes a slider 21 and a fixing block 22 disposed on one side of the upper end face of the slider 21. The outer surface of the slider 21 has a strip-shaped hole 211 along its length direction corresponding to the adjustment through hole 16 of the fixed base 1, and a fixing bolt 23 is disposed therein. The upper and lower ends of the inner surface of the slider 21 have guide strips 212 protruding along its length direction, which cooperate with the stepped surfaces 17 at the upper and lower ends of one side of the fixed base 1. Furthermore, the outer end of the inner surface has a receiving groove 213, which contains a threaded groove 1 at the lower part of one side of the fixed base 1. The nut 3 is fitted with 5 and locked in the receiving groove 213 by the pressure plate 4; the fixing block 22 is arranged perpendicular to the axial direction of the slider 21, and a second mounting through hole 221 is provided on one side of the fixing block 22 along its radial direction. Furthermore, an adjustment gap 222 is provided at the center of one end of the fixing block 22 corresponding to the second mounting through hole 221, and a second locking hole 223 and a second locking bolt 224 are provided at the end of the fixing block 22 corresponding to the adjustment gap 222, which are perpendicular to and through the adjustment gap 222.

[0029] Preferably, the cross-section of the threaded groove 15 on the lower part of one side of the fixed base 1 is semi-circular, and correspondingly, the cross-section of the receiving groove 213 on the inner side of the slider 21 is semi-circular.

[0030] Preferably, a third locking hole 18 and a corresponding locking screw 19 are provided on one side wall of the first mounting through hole 11 on the fixed base 1.

Claims

1. A gauge holder for detecting the circular runout of a printing press mandrel shaft, characterized in that, include: The fixed base is a cuboid with a first mounting through hole at the center of one side. An adjustment slot communicating with the first mounting through hole is provided at the center of the end corresponding to the first mounting through hole. A first locking hole and a first locking bolt communicating with the adjustment slot are provided radially at the end corresponding to the adjustment slot. A threaded groove is provided on the lower part of one side of the fixed base along the length direction. Several adjustment through holes are provided on the side of the fixed base above the groove along the length direction. The upper and lower ends of this side are provided with stepped surfaces along the length direction. The movable base includes a slider and a fixing block disposed on one side of the upper end face of the slider; the outer side of the slider has a strip-shaped hole along its length direction corresponding to the adjustment through hole of the fixing base, and a fixing bolt is disposed therein; the upper and lower ends of the inner side of the slider have guide strips that mate with the stepped surfaces of the upper and lower ends of one side of the fixing base along its length direction, and the outer end of the inner side has a receiving groove, in which a nut mates with the threaded groove at the lower part of one side of the fixing base, and is locked in the receiving groove by a pressure plate; the fixing block is disposed perpendicular to the axial direction of the slider, and a second mounting through hole is disposed on one side of the fixing block along its radial direction, and an adjustment gap communicating with the second mounting through hole is disposed at the center of the end of the fixing block corresponding to the second mounting through hole, and a second locking hole and a second locking bolt are disposed at the end of the fixing block corresponding to the adjustment gap, which are perpendicular to and communicate with the adjustment gap.

2. The gauge holder for detecting the circular runout of the printing press mandrel shaft as described in claim 1, characterized in that, The lower part of one side of the fixed base has a threaded groove with a semi-circular cross-section, and correspondingly, the accommodating groove on the inner side of the slider has a semi-circular cross-section.

3. The gauge holder for detecting the circular runout of the printing press mandrel shaft as described in claim 1 or 2, characterized in that, A third locking hole and a corresponding locking screw are provided on one side wall of the first mounting through hole on the fixed base.

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