CN218723848U - Full-automatic plate thickness detection device for alignment film printing plate - Google Patents

Abstract

The utility model discloses a thick detection device of full-automatic version of alignment film printing plate, include: a detection table; two longitudinal rails arranged on two sides of the top surface of the detection table; the transverse rail comprises two vertical supporting legs and is driven by the longitudinal driving device to move along the longitudinal rail; the cross brace is horizontally arranged and fixedly connected with the top ends of the two vertical supporting legs; the plate thickness measuring instrument is driven by the transverse driving device to move along the transverse track, and is used for measuring the thickness of the alignment film printing plate on the detection table; and the controller is electrically connected with the longitudinal driving device, the transverse driving device and the plate thickness measuring instrument. The utility model discloses a set up horizontal, vertical track and the cooperation of version thickness measuring apparatu and realize the automated inspection of the multiple spot position on the orientation film printing plate, cause the risk of damage to the space of a whole page when effectively reducing artifical measuring error and inspection, improve the accuracy nature of printing plate detection data by a wide margin.

Description

Full-automatic plate thickness detection device for alignment film printing plate

Technical Field

The utility model relates to a printing plate quality detection field. More specifically, the utility model relates to a full-automatic version of alignment film printing plate is thick detection device.

Background

The alignment film printing is performed by using a flexible photosensitive resin plate and a method of transferring ink through an anilox roller, and is one of relief printing processes, namely flexography for short. The printing part of the alignment film printing plate is raised, an anilox roller uniformly coats an ink layer with a certain thickness on the part of the printing plate to be printed during printing, and then the ink layer of the part to be printed is transferred to the surface of a printing stock under the action of the embossing roll pressure to form an alignment film layer. The flexible photosensitive resin plate is mainly applied to the liquid crystal panel display industry, and the alignment film refers to a PI alignment film for providing a pretilt angle for liquid crystal. The alignment film printing plate is composed of an NK resin layer, a Base film layer and a Crier film layer (BF and CF for short) from top to bottom, wherein the NK resin layer is one of photosensitive resins and mainly formed by UV curing of liquid photosensitive resin, and the BF layer and the CF are substrate layers. During UV curing of the liquid photosensitive resin, thickness fluctuation of the finished printing plate may be caused due to production equipment, and in order to ensure printing quality, the thickness of the printing plate is highly required at a client using end, so that multi-point thickness detection needs to be performed on the finished printing plate after production is completed to screen out unqualified products, and the production equipment is adjusted by recording measurement data.

A common plate thickness measuring method is to lay a prefabricated point location template on a printing plate, then place a plate thickness measuring instrument on the corresponding point locations of the template in sequence, manually observe the measurement result and record the measurement result in a table. In actual measurement, due to the fact that the alignment film printing plate has various product sizes, the maximum plane size can reach 2500mm x 4000mm, when a worker detects the alignment film printing plate, the alignment film printing plate needs to climb to a layout for measurement, the potential risk of damaging the layout exists, the measurement work can be completed by 2-3 people, the labor cost is high, and the detection efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a join in marriage to the thick detection device of full-automatic version of membrane galley realizes the automated inspection of joining in marriage the multiple spot position on the membrane galley through setting up violently, vertical track and the thick measuring apparatu cooperation of version, causes the risk of damage to the space of a whole page when effectively reducing artifical measuring error and inspection, improves the accuracy nature that the galley detected data by a wide margin.

To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a full-automatic plate thickness detecting apparatus for an alignment film printing plate, including:

the top surface of the detection table is horizontally arranged;

the two longitudinal rails are respectively arranged on two sides of the top surface of the detection platform;

the transverse rail is of a door-shaped structure and comprises two vertical supporting legs, and the bottom ends of the two vertical supporting legs are respectively arranged on the two longitudinal rails and driven by a longitudinal driving device to move along the longitudinal rails; the cross brace is horizontally arranged and fixedly connected with the top ends of the two vertical supporting legs;

the plate thickness measuring instrument is arranged on a cross brace of the transverse rail and driven by a transverse driving device to move along the transverse rail, and the plate thickness measuring instrument is used for measuring the thickness of the alignment film printing plate on the detection table;

and the controller is electrically connected with the longitudinal driving device, the transverse driving device and the plate thickness measuring instrument.

Preferably, the full-automatic plate thickness detection device for the alignment film printing plate comprises a first driving motor which is arranged at the end of any longitudinal rail and forms a linear guide rail pair together with the end of any longitudinal rail, a sliding block of the linear guide rail pair is fixedly connected with the bottom of the vertical supporting leg on the same side, and the bottom end of the vertical supporting leg on the other side is connected with the corresponding longitudinal rail in a sliding manner.

Preferably, the full-automatic plate thickness detection device for the alignment film printing plate comprises a housing, a transverse support and a plate thickness measuring instrument, wherein the housing is of a hollow structure with an opening at the bottom surface and is in sliding connection with the transverse support; the second driving motor is arranged in the shell, an output shaft is horizontally arranged, and a gear is coaxially sleeved on the output shaft; the screw rod is vertically arranged inside the shell and is in meshed connection with the gear; and the displacement sensor is fixed at the bottom of the screw rod and is in sliding connection with the shell along the vertical direction, and the sensing end of the displacement sensor is over against the bottom opening of the shell.

Preferably, the full-automatic plate thickness detection device for the alignment film printing plate comprises an eddy current type displacement sensor and a metal panel arranged on the top of the detection table.

Preferably, in the full-automatic plate thickness detection device for the alignment film printing plate, the eddy current type displacement sensor includes a fixed shell which is a hollow structure and is fixedly connected with the bottom of the screw rod; a pre-setter disposed inside the fixing case; the probe is positioned at the bottom end of the fixed shell and is arranged under the front-mounted device at intervals, and the probe is electrically connected with the front-mounted device through a cable; and the spring is vertically sleeved on the outer side of the cable, and two ends of the spring are respectively abutted to the front-end device and the probe.

Preferably, the full-automatic plate thickness detection device for the alignment film printing plate has the plate thickness measuring instrument slidably connected to the cross brace through a roller, and the transverse driving device includes a third driving motor which is arranged on the plate thickness measuring instrument and has an output shaft fixedly connected to a rotating shaft of the roller.

The utility model discloses at least, include following beneficial effect:

1. the utility model realizes the automatic detection of multiple points on the alignment film printing plate by arranging the transverse and longitudinal rails to be matched with the plate thickness measuring instrument, does not need to manufacture point position templates, does not need workers to climb onto the plate surface for measuring operation, reduces the labor cost required to be invested in the printing plate quality detection process, effectively reduces the operation error caused by manual detection and the risk of damage to the plate surface during detection, and improves the printing plate quality inspection efficiency and the accuracy of detection data;

2. the utility model discloses a thick detection device of version realizes the detection requirement to different positions on the galley according to the route of setting for, can be applicable to the thick detection of printing version of multiple not isostructure and size, and application scope is wide and easy operation is convenient.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural view of an upright surface of a full-automatic plate thickness detection device for an alignment film printing plate according to an embodiment of the present invention;

fig. 2 is a schematic side elevation structure diagram of the full-automatic plate thickness detection device for an alignment film printing plate in the above embodiment;

FIG. 3 is a schematic plane structure diagram of the full-automatic plate thickness detection apparatus for alignment film printing plate in the above embodiment;

fig. 4 is a schematic elevation structure diagram of the plate thickness measuring instrument in the above embodiment.

Description of reference numerals:

1. a detection table; 2. a longitudinal rail; 3. a longitudinal driving device; 4. a transverse rail; 5. a lateral drive device; 6. a plate thickness measuring instrument; 61. a housing; 62. a screw; 63. a probe; 64. a pre-positioning device; 65. a second drive motor; 66. a spring; 7. alignment film printing plate.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1-4, the utility model provides a full-automatic version thickness detection device of alignment film printing plate, include:

the top surface of the detection table 1 is horizontally arranged;

two longitudinal rails 2 respectively arranged on two sides of the top surface of the detection table;

the transverse rail 4 is of a door-shaped structure and comprises two vertical supporting legs, and the bottom ends of the two vertical supporting legs are respectively arranged on the two longitudinal rails and driven by a longitudinal driving device to move along the longitudinal rails; the cross brace is horizontally arranged and fixedly connected with the top ends of the two vertical supporting legs;

a plate thickness measuring instrument 6 which is arranged on a cross arm of the transverse rail 4 and is driven by a transverse driving device 5 to move along the transverse rail, wherein the plate thickness measuring instrument is arranged for measuring the thickness of the alignment film printing plate 7 on the detection table;

and the controller is electrically connected with the longitudinal driving device, the transverse driving device and the plate thickness measuring instrument.

According to the technical scheme, the longitudinal rail is set to be the Y-axis rail, the transverse rail is the X-axis rail, the plate thickness measuring instrument can freely move in the plane of the detection platform through the cooperation of the longitudinal driving device and the transverse driving device, the plane size of the detection platform is set according to the upper limit size of the alignment film printing plate to be detected, and therefore the alignment film printing plate thickness detection device is adaptive to thickness detection of various alignment film printing plates with different sizes. The plate thickness measuring instrument can adopt a conventional displacement sensor to detect the thickness of the printing plate, for example, when a laser displacement sensor or a sound wave displacement sensor and other non-contact displacement sensors are adopted, the sensing end (sensor detection end) of the plate thickness measuring instrument is kept to be arranged just opposite to the surface of the printing plate below and the position of the sensing end is unchanged, the displacement sensor is used for measuring the distance between the plate thickness measuring instrument and the surface of a detection table before the alignment film printing plate is placed, the plate thickness measuring instrument is driven to move in a horizontal plane after the alignment film printing plate is placed, the distance between the sensing end and the corresponding point position of the surface of the printing plate is measured, and the difference between the two distances is the thickness of the alignment film printing plate; the plate thickness measuring instrument can also select other kinds of displacement sensors to realize the detection of the thickness of the printing plate in a direct or indirect mode. The controller is provided with a control system of a whole set of plate thickness detection device, a longitudinal driving device, a transverse driving device and a plate thickness measuring instrument are electrically connected with the controller, the controller is further provided with an input panel and a display in a matched mode, a worker can input a detection path point bitmap which is set in advance from the outside, the controller receives an image signal and then automatically identifies detection point positions and controls the longitudinal driving device and the transverse driving device, the plate thickness detecting instrument moves according to the set detection path and point positions, the stop time can be set at each detection point position, the plate thickness detecting instrument can be guaranteed to successfully complete detection and transmit measured data to the controller, an operation module in the controller can automatically process the detected data according to the set program and the detection principle, finally calculated plate thickness values are output and displayed on the external display, and the worker can conveniently observe and judge the quality (thickness at different point positions) of a printing plate and screen unqualified products. Meanwhile, the controller can also automatically record and store the detection data of different printing plates, so that the workers can summarize experience according to the detection data and improve the production process conveniently, and the production quality of the printing plates is further improved. In addition, in order to better adapt to the detection of printing plates with different sizes, the top surface of the detection table is also provided with a positioning device which comprises an L-shaped limiting block, wherein the L-shaped limiting block is horizontally arranged and fixed at a zero position (which can be any edge angle of the detection table) of the top surface of the detection table, the zero position is positioned under the initial position of the plate thickness measuring instrument, and two side edges of the L-shaped limiting block are respectively abutted against two adjacent side edges of the alignment film printing plate, so that when the printing plates with different sizes are placed, one edge angle of the printing plate is directly abutted against the L-shaped limiting block in a matched manner, the positioning of the printing plate can be completed, and because a worker is not required to contact the printing plate in the detection process, the printing plate cannot move after the positioning is completed, and the point position accuracy in the detection after the positioning can be ensured; meanwhile, the vertex position (namely the edge angle) of the alignment film printing plate to be detected and the initial position of the plate thickness measuring instrument coincide in the horizontal plane projection, so that the controller can conveniently and directly control the plate thickness measuring instrument to start moving by taking the zero position as the reference after reading the detection path and the point position, and the accuracy of detecting the point position is further ensured.

The utility model discloses a set up violently, vertical track and the cooperation of version thickness measuring apparatu realize the automated inspection of the multiple spot position on the orientation film printing plate, do not need to make the position template, also do not need the staff to climb to and carry out the measurement operation on the space of a whole page, reduced the human cost that printing plate quality detection process need drop into, caused the risk of damage to the space of a whole page when effectively having reduced the operation error that manual detection brought and inspection simultaneously, improved printing plate quality inspection efficiency and detected data's accuracy nature.

In another technical scheme, the full-automatic plate thickness detection device for the alignment film printing plate comprises a longitudinal driving device 3 and a second driving motor, wherein the longitudinal driving device is arranged at the end part of any longitudinal rail 2 and forms a linear guide rail pair together with the end part, a sliding block of the linear guide rail pair is fixedly connected with the bottom of the vertical supporting leg on the same side, and the bottom end of the vertical supporting leg on the other side is connected with the corresponding longitudinal rail in a sliding manner. The transverse rail is driven on the longitudinal rail on one side, the longitudinal rail on any side is in a linear guide rail form and drives the transverse rail to move along the Y-axis direction, and the longitudinal rail on the other side is connected with the transverse rail in a sliding mode to move in a driven mode. The linear guide rail pair is electrically connected with the controller, so that the longitudinal displacement of the transverse rail (namely the Y-axis coordinate of the detection point position of the plate thickness measuring instrument) can be accurately controlled through the controller.

In another technical solution, in the full-automatic plate thickness detecting device for an alignment film printing plate, the plate thickness measuring instrument 6 includes a housing 61, which is a hollow structure with an opening on the bottom surface and is connected with the cross brace in a sliding manner; a second driving motor 65, which is disposed inside the housing and has an output shaft disposed horizontally, and a gear is coaxially sleeved on the output shaft; a screw 62 vertically arranged inside the housing and engaged with the gear; and the displacement sensor is fixed at the bottom of the screw rod and is in sliding connection with the shell along the vertical direction, and the sensing end of the displacement sensor is over against the bottom opening of the shell. The plate thickness measuring instrument is vertically arranged and moves along the length direction of the cross brace under the driving of the transverse driving device. The second driving motor is a gear motor and is fixed in the shell, and a gear is fixedly sleeved on the output shaft; the second driving motor drives the gear to rotate when working, so that the screw and the gear vertically move relatively, and the height position of the plate thickness measuring instrument fixed at the bottom of the screw is controlled. The structure of the plate thickness measuring instrument is suitable for a method for measuring the thickness of a printing plate by adopting a contact type or a direct type, and particularly, after the plate thickness measuring instrument moves to a set detection point position under the matching control of a longitudinal driving device and a transverse driving device, a gear is driven to rotate by a second driving motor, so that a screw rod drives a displacement sensor to descend, the bottom end of the displacement sensor can penetrate out of an opening in the bottom surface of a shell downwards until an induction end (bottom end) of the displacement sensor is abutted against the surface of the printing plate and then stops descending, the (vertical) moving distance of the induction end of the displacement sensor can be read under the condition of adopting the contact type measurement, and the difference value between the distance and the height difference between the initial position of the induction end and the top surface of a detection table is the thickness of the printing plate at the detection point; and under the condition of direct measurement, the vertical distance from the contact point to the surface of the detection table can be directly measured under the condition that the sensing end is abutted to the surface of the printing plate, namely the thickness of the printing plate at the measurement point. After the detection is finished, the controller controls the second driving motor to rotate reversely to reset the displacement sensor (ascend to an initial height position), and then controls the whole plate thickness measuring instrument to move to the next detection point according to a designed path. The plate thickness measuring instrument structure can be suitable for measuring the thickness of the alignment film printing plate with various specifications (heights), is wide in application range, simple and convenient to operate, further simplifies the quality inspection process of workers, and improves the working efficiency.

In another technical scheme, in the full-automatic plate thickness detection device for the alignment film printing plate, the displacement sensor is an eddy current type displacement sensor, and the top of the detection table 1 is a metal panel. In this embodiment, the plate thickness measuring instrument uses a direct method for measuring the thickness of the printing plate, the displacement sensor is an eddy current type displacement sensor, and is suitable for short-distance accurate measurement, the top surface of the detection table uses an aluminum panel, after the displacement sensor moves to abut against the top surface of the alignment film printing plate, a current switch of the eddy current type displacement sensor is started to generate a high-frequency magnetic field, and the linear distance from the induction end to the surface of the lower aluminum panel is detected through electromagnetic induction, that is, the thickness of the printing plate. The detection method can visually obtain the measurement result of the thickness of the printing plate, does not need extra operation, effectively reduces the measurement error, and improves the measurement accuracy and the measurement efficiency.

In another technical solution, in the full-automatic plate thickness detection device for an alignment film printing plate, the eddy current type displacement sensor includes a fixed shell which is a hollow structure and is fixedly connected with the bottom of the screw; a pre-setter 64 provided inside the stationary case; the probe 63 is positioned at the bottom end of the fixed shell and is arranged right below the front-mounted device at intervals, and the probe is electrically connected with the front-mounted device through a cable; and the spring 66 is vertically sleeved on the outer side of the cable, and two ends of the spring are respectively abutted with the front-mounted device and the probe. In the above technical solution, the pre-positioning device, the cable and the probe are all conventional structures of eddy current type displacement sensors, and conventional commercially available eddy current sensors (i.e. eddy current displacement sensors) can be selected. The front-mounted device is fixed inside the fixed shell during installation, the probe is arranged at an opening on the bottom surface of the fixed shell, the probe can contact the surface of a printing plate firstly when the displacement sensor moves down integrally, reaction delay time exists between descending and stopping of the displacement sensor, in order to avoid the problem that the probe is excessively pressed down to cause inaccuracy of measured data (large error of measured thickness) or damage to the surface of an alignment film when the displacement sensor descends too much, the spring is additionally arranged between the front-mounted device and the probe, and buffer force is provided when the probe is further pressed down after being abutted against the surface of the printing plate, so that the accuracy of the measured data is ensured.

In another technical scheme, the full-automatic plate thickness detection device for the alignment film printing plate is characterized in that the plate thickness measuring instrument is connected with the cross brace in a sliding mode through a roller, the transverse driving device 5 comprises a third driving motor, the third driving motor is arranged on the plate thickness measuring instrument, and an output shaft of the third driving motor is fixedly connected with a rotating shaft of the roller. The plate thickness measuring instrument can move along the cross brace under the driving of the transverse driving device, specifically, sliding rails are arranged on two sides of the cross brace, the roller is respectively arranged on the sliding rails and is in rolling connection with the sliding rails, the rotating shaft of the roller is in rotating connection with the plate thickness measuring instrument, and the third driving motor fixed on the plate thickness measuring instrument can drive the rotating shaft to rotate under the control of the controller, so that the roller moves to a specified position along the sliding rails, and the accurate control of the transverse displacement (namely the X-axis coordinate of the detection point position of the plate thickness measuring instrument) of the plate thickness measuring instrument is realized.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, particular embodiments, but rather to those skilled in the art, having the benefit of the teachings of the present invention, which is capable of numerous modifications and alternative forms, and will be readily apparent to those skilled in the art, and it is not intended to limit the invention to the details shown and described without departing from the general concepts defined by the appended claims and their equivalents.

Claims (6)

1. Full-automatic version of alignment film printing plate is thick detection device, its characterized in that includes:

the top surface of the detection table is horizontally arranged;

the two longitudinal rails are respectively arranged on two sides of the top surface of the detection platform;

the transverse rail is of a door-shaped structure and comprises two vertical supporting legs, and the bottom ends of the two vertical supporting legs are respectively arranged on the two longitudinal rails and driven by a longitudinal driving device to move along the longitudinal rails; the cross brace is horizontally arranged and fixedly connected with the top ends of the two vertical supporting legs;

the plate thickness measuring instrument is arranged on a cross brace of the transverse rail and driven by a transverse driving device to move along the transverse rail, and the plate thickness measuring instrument is used for measuring the thickness of the alignment film printing plate on the detection table;

and the controller is electrically connected with the longitudinal driving device, the transverse driving device and the plate thickness measuring instrument.

2. The full-automatic plate thickness detection device of an alignment film printing plate according to claim 1, wherein the longitudinal driving device comprises a first driving motor, the first driving motor is arranged at the end of any longitudinal rail and forms a linear guide rail pair together with the longitudinal rail, a sliding block of the linear guide rail pair is fixedly connected with the bottom of the vertical supporting leg on the same side, and the bottom end of the vertical supporting leg on the other side is connected with the corresponding longitudinal rail in a sliding manner.

3. The full-automatic plate thickness detection device of an alignment film printing plate according to claim 1, wherein the plate thickness measuring instrument comprises a housing which is a hollow structure with an opening on the bottom surface and is connected with the cross brace in a sliding manner; the second driving motor is arranged in the shell, an output shaft is horizontally arranged, and a gear is coaxially sleeved on the output shaft; the screw rod is vertically arranged inside the shell and is in meshed connection with the gear; and the displacement sensor is fixed at the bottom of the screw rod and is in sliding connection with the shell along the vertical direction, and the sensing end of the displacement sensor is over against the bottom opening of the shell.

4. The full-automatic plate thickness detection device of an alignment film printing plate according to claim 3, wherein the displacement sensor is an eddy current type displacement sensor, and a metal panel is arranged on the top of the detection table.

5. The full-automatic plate thickness detection device of an alignment film printing plate according to claim 4, wherein the eddy current type displacement sensor comprises a fixed shell which is a hollow structure and is fixedly connected with the bottom of the screw; a pre-setter disposed inside the stationary case; the probes are positioned at the bottom end of the fixed shell and are arranged under the front-mounted device at intervals, and the probes are electrically connected with the front-mounted device through cables; and the spring is vertically sleeved on the outer side of the cable, and two ends of the spring are respectively abutted with the front-mounted device and the probe.

6. The full-automatic plate thickness detection device of an alignment film printing plate according to claim 1, wherein the plate thickness measuring instrument is slidably connected with the cross brace through a roller, and the transverse driving device comprises a third driving motor which is arranged on the plate thickness measuring instrument and an output shaft of which is fixedly connected with a rotating shaft of the roller.

Images